• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to the field of rail transit ventilation and smoke discharge, and provides a fire ventilation and smoke discharge system and method for a platform of a separated island subway underground station; wherein the separated island 5 subway underground station comprises two platforms that are separated from each other and two station halls disposed above the two platforms, the two platforms and the two station halls are in communication through channels respectively, a tunnel and a platform are spaced by a platform door, two ends of each tunnel are respectively connected to a tunnel smoke discharge sub-system, a smoke discharge valve is disposed 10 above the platform door, each tunnel is connected with a heat discharge sub-system, a platform and a station hall that are located at a same side share one set of air supply and smoke discharge systems, the air supply and smoke discharge systems being used for air supply or smoke discharge for a platform public area and a station hall public area. The fire ventilation and smoke discharge system for a platform of a separated island subway 15 underground station provided in the present invention at least doubles smoke discharge volume under the precondition of not increasing purchasing cost of devices significantly, thereby realizing efficient smoke discharge.
    公开号:NL2028659A
    申请号:NL2028659
    申请日:2021-07-08
    公开日:2021-09-13
    发明作者:Lv Jingmin；Li Jian；Xu Xuan；Shi Congling；Che Honglei；Ren Fei
    申请人:China Academy Safety Science & Technology；
    IPC主号:
    专利说明:

    [0001] [0001] The present invention relates to the technical field of rail transit ventilation and smoke discharge, and in particular, relates to a fire ventilation and smoke discharge system and method for a platform of a separated island subway underground station.BACKGROUND
    [0002] [0002] Subways are taking increasingly vital tasks of transporting passengers as a modernized urban rail transmit vehicle. Due to limited space inside a city, most subway stations of an urban area are underground stations. In operation safety of an underground station, casualties caused by diffusion of smoke and toxic substances generated by combustion inside a subway station and a subway tunnel are of the most harm. Subway fire is much more harmful than fire of a ground building. Once a fire occurs to subway, losses caused are generally very large, and it is mainly reflected as: firstly, thick smoke and large smoking volume are caused by incomplete combustion due to insufficient oxygen of the underground station. Meanwhile, there are less entrances and exits for subway, such that a large amount of smoke can flow out only from one or two openings, resulting in a slow speed of flow of air with ground. “Air suction” effects of underground openings enable a part of smoke flowing outside to be suctioned back by openings, resulting in suffocation easily. Secondly, the number of exits communicating subway and ground are limited, passengers inside subway are of large number and crowded, such that evacuation is slow. Once a fire occurs, it is possible to cause mass injuries and deaths. An effective ventilation and smoke discharge system has a very significant meaning for reduction of casualties.
    [0003] [0003] A conventional subway station platform is mainly divided into an island platform and a side platform. Besides, some special stations also exist. For example, for a subway built along an urban overhead, since pillars of the overhead obstruct large- scale excavation of a road, a station integrated with a station hall and a platform cannot
    [0004] [0004] In the prior subway design, after a fire occurs to a platform, a conventional practice is to start smoke discharge fans at two ends of a public area of the station for discharging smoke for a public area of a platform, start heat discharge fans at two ends of the station, and assisting smoke discharge for the public area of the platform. In considering risks of people falling into a rail area, doors of the platform are not open during fire of the station. However, for the separated island underground station, an area of a platform/station hall at one side is smaller than that of a conventional station, an air volume of the configured smoke discharge fans is small, and generally only one heat discharge fan is configured, resulting in a very small smoke discharge volume under a conventional smoke discharge mode.SUMMARY
    [0005] [0005] The objective of the present invention is to provide a fire ventilation and smoke discharge system and method for a platform of a separated island subway underground station to solve the current problem about small smoke discharge volume after a fire occurs to a separated island underground station.
    [0006] [0006] In order to solve the above technical problem, the present invention provides a fire ventilation and smoke discharge system for a platform of a separated island subway underground station, wherein the separated island subway underground station comprises two platforms that are separated from each other and two station halls that are separated from each other, the two station halls are correspondingly disposed above the two platforms, two tunnels are correspondingly distributed at one side of a respective platform, the two platforms and the two station halls are in communication through channels respectively, the tunnel and the corresponding platform are spaced by a platform door, two ends of each of the tunnels are respectively connected to a tunnel smoke discharge sub-system, a smoke discharge valve is disposed above the platform door, the smoke discharge valve is started when a fire occurs to a platform of a side
    [0007] [0007] Wherein the smoke discharge valve is located above a platform door controller for controlling opening and closing of the platform door and located below a ceiling pipe of the platform.
    [0008] [0008] Wherein there are the two channels communicating the two platforms, and each of the tunnels is provided with a smoke screen inside.
    [0009] [0009] In order to solve the above technical problem, the present invention further provides a method for ventilation and smoke discharge using the fire ventilation and smoke discharge system for a platform of a separated island subway underground station, wherein when a fire occurs to one platform thereof, a single-platform fire mode is executed, the single-platform fire mode comprising: starting a smoke discharge valve above a platform door of the platform that is on fire, and starting a heat discharge sub- system, a platform public area smoke discharge sub-system and a tunnel smoke discharge sub-system that are connected to the platform that is on fire, wherein station hall public area air supply sub-systems at two ends of a station hall at a side that is not on fire are started simultaneously; a heat discharge sub-system, a platform public area smoke discharge sub-system and a tunnel smoke discharge subsystem, connected to a platform that is not on fire, are closed, and station hall public area air supply sub-systems at two ends of a station hall at a side that is on fire are closed simultaneously.
    [0010] [0010] Wherein only a communicating channel between the heat discharge sub- system and a rail-top heat discharge pipe in a tunnel at a side that is on fire is started, and a communicating channel between the heat discharge sub-system and a rail-bottom heat discharge pipe in a tunnel at a side that is on fire is closed.
    [0011] [0011] Wherein the mode further comprises: when fire of a platform at a side
    [0012] [0012] Wherein occurrence of fire to the platform is determined by a triggering signal sent due to an alarm of a fire finder in the platform.
    [0013] [0013] Wherein when fire of a platform at a side that is on fire spreads to a platform at a side that is not on fire, firstly executing the single-platform fire mode continues; and then the dual-platform fire mode is executed if a feedback signal indicating successful execution of the single-platform fire mode is received or if a feedback signal indicating successful execution of the single-platform fire mode is not received until a subsequent lmin-2min.
    [0014] [0014] The present invention provides a fire ventilation and smoke discharge system for a platform of a separated island subway underground station, and the platform and the station hall that are located at a same side share one set of air supply and smoke discharge systems, so as to effectively decrease the length of an air supply pipe and a smoke discharge pipe and improve smoke discharge efficiency. While not significantly increasing purchasing cost of devices, smoke discharge volume is doubled at least, thus realizing smoke discharge more efficiently.BRIEF DESCRIPTION OF THE DRAWINGS
    [0015] [0015] To describe the technical solutions in the embodiments of the present invention or in the prior art more clearly, the following briefly describes the accompanying drawings required for describing the embodiments or the prior art. Apparently, the accompanying drawings in the following description show some embodiments of the present invention, and a person of ordinary skill in the art may still derive other drawings from these accompanying drawings without creative efforts.
    [0016] [0016] Fig. 1 is a schematic diagram of principles of a fire ventilation and smoke discharge system for a platform of a separated island subway underground station in embodiments of the present invention ; and
    [0017] [0017] FIG. 2 is a schematic structural diagram of a platform door in embodiments of the present invention.
    [0018] [0018] Of the drawings: A1. a first station hall; A2. a first platform; A3. a second station hall; A4. a second platform; A5. a first partition; A6. a second partition; A7. a third partition; A8. a fourth partition; A9. a fifth partition; A10. a sixth partition; All. a seventh partition; A12. an eighth partition; A13. a first tunnel; A14. a second tunnel; B1. a first channel; B2. a second channel; B3. a third channel. B4. a fourth channel; C1. a first heat discharge pavilion, C2. a second heat discharge pavilion; D1. a first range tunnel pavilion; D2. a second range tunnel pavilion; D3. a third range tunnel pavilion; D4. a fourth range tunnel pavilion; El. a first public area smoke discharge pavilion; E2. a second public area smoke discharge pavilion; E3. a third public area smoke discharge pavilion; E4. a fourth public area smoke discharge pavilion; F1. a first public area air supply pavilion; F2. a second public area air supply pavilion; F3. a third public area air supply pavilion; F4. a fourth public area air supply pavilion; G1. a first heat discharge fan; G2. a second heat discharge fan; HI. a first range tunnel fan; H2. a second range tunnel fan; H3. a third range tunnel fan; H4. a fourth range tunnel fan; I1. a first public area smoke discharge fan; I2. a second public area smoke discharge fan; 13. a third public area smoke discharge fan; 14. a fourth public area smoke discharge fan; J1. a first public area air supply fan; J2. a second public area air supply fan; J3. a third public area air supply fan; J4. a fourth public area air supply fan; Kl. a first silencer; K2. a second silencer; K3. a third silencer; K4. a fourth silencer; K5. a fifth silencer; K6. a sixth silencer; K7. a seventh silencer; K8. an eighth silencer; K9. a ninth silencer; K10. a tenth silencer; K11. an eleventh silencer; K12. a twelfth silencer; K13. a thirteenth silencer; K14. a fourteenth silencer; L1. a first air valve; L2. a second air valve; L3. a third air valve; L5. a fifth air valve; L7. a seventh air valve; L8. an eighth air valve; L9. a ninth air valve; L10. a tenth air valve; L11. an eleventh air valve; L12. a twelfth air valve; L13. a thirteenth air valve; L14. a fourteenth air valve; L15. a fifteenth air valve; L16. a sixteenth air valve; L17. a seventeenth air valve; L18. an eighteenth air valve; L19. a nineteenth air valve; L20. a twentieth air valve; L21. a twenty-first air valve; L22. a twenty-second air valve; L23. a twenty-third air valve; L24. a twenty-fourth air valve; L25. a twenty-fifth air valve; L26. a twenty-sixth air valve; L27. a twenty-seventh air valve; L28. a twenty-eighth air valve; L29. a twenty-ninth air valve; L30. a thirtieth air valve; L31. a thirty-first air valve; L32. a thirty-second air valve; L33. a thirty-third air
    [0019] [0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following clearly and completely describes the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the protection scope of the present invention.
    [0020] [0020] In the description of the embodiments in the present invention, it should be noted that unless otherwise prescribed and defined clearly, terms “first”, “second” are number made for clearly describing components of a product, without representing any substantive difference. The directions of “up”, “down”, “left” and “right” are determined
    [0021] [0021] In the description of the present invention, it should be noted that unless otherwise prescribed and defined clearly, terms “mounting”, “communicating” and “connection” should be understood in a broad sense, which for example can be a fixed connection and can also be a detachable connection or an integral connection; can be a mechanic connection and can also be an electrical connection; can be a direct connection and can also be an indirect connection through an intermediary, and can also be communication inside two elements. A person of ordinary skill in the art can understand specific meanings of the above terms in the embodiments of the present invention based on specific situations.
    [0022] [0022] Fig. 1 is a schematic diagram of principles of a fire ventilation and smoke discharge system for a platform of a separated island subway underground station. As shown in Fig. 1, the fire ventilation and smoke discharge system for a platform of a separated island subway underground station comprises two station halls that are separated from each other and two platforms that are separated from each other, the two platforms and the two station halls being disposed in a one-to-one correspondence and one station hall being disposed above each platform. Two tunnels are arranged at one side of a respective platform, wherein one tunnel is an upgoing tunnel and the other tunnel is a downgoing tunnel. Correspondingly, the upgoing tunnel corresponds to an upgoing platform and an upgoing station hall, and the downgoing tunnel corresponds to a downgoing platform and a downgoing station hall. Two platforms are communicated through channels and two station halls are communicated through channels as well. A tunnel and a respective platform are spaced by a platform door, each tunnel corresponds to two ends of the platform, which are respectively connected with one set of tunnel smoke discharge sub-systems, and a smoke discharge valve is disposed above the platform door. When a fire occurs to the platform, the smoke discharge valve is started to facilitate communication of the tunnel smoke-discharge sub-system and an opposing platform for smoke discharge. Each tunnel is further connected with a heat discharge sub-system, which is simultaneously connected to a rail-top heat discharge pipe and a rail-bottom heat discharge pipe arranged in the tunnel. The platform and the station hall that are located at a same side share one set of air supply and smoke discharge systems.
    [0023] [0023] In the prior subway design, when a fire occurs to a platform public area, it is necessary to start a smoke discharge fan in the platform for natural air supply through an opposing station hall. However, in the separated island station, two platforms and two station halls are spaced distantly, such that no matter to which side the smoke discharge fan and the air supply fan of the public area are arranged. A smoke discharge pipe and an air supply pipe need to pass a long distance for extending to another side, and an air pipe connecting the two sides can only be arranged in a connecting channel of the station halls at two sides (as rock and soil are at other positions). This further increases the length of the smoke discharge pipe and the air supply pipe as well as wind resistance significantly, which are not advantageous for smoke discharge during fire. The fire ventilation and smoke discharge system for a platform of a separated island subway underground station provided by the embodiments of the present invention can effectively decrease the length of the air supply pipe and the smoke discharge pipe, and improve smoke discharge efficiency by one set of air supply and smoke discharge system shared by the platform and the station hall that are located at a same side. In addition, since an area of a single platform and station hall of the separated island station is smaller than an area of a conventional island station hall public area, embodiments of the present invention set one set of air supply and smoke discharge system respectively at two platforms and station halls for use as an air supply sub-system and a smoke discharge sub-system. From a surface view, the number of the smoke discharge fans and the air supply fans increases, with high cost. However, actually, for the platforms and station halls of a separated island station with a small area, air supply force and air rate of smoke discharge required for the air supply sub-system and the smoke discharge sub-system are smaller. Thus, the fire ventilation and smoke discharge system for a platform of a separated island subway underground station provided by embodiments of the present invention does not increase purchasing cost of devices significantly. Generally, an air volume of one heat discharge fan is 30-50m3/s, an air volume of two public area smoke discharge fans is generally 20-40m3/s, and an air volume of two tunnel fans is generally
    [0024] [0024] Specifically, the two station halls are respectively a first station hall Al and a second station hall A3, two platforms of the second station hall are respectively a first platform A2 and a second platform A4, the first station hall A1 is located above the first platform A2, and the second station hall A3 is located above the second platform A4. The first station hall Al and the second station hall A3 are communicated through a first channel B1 and a second channel B2, and the first platform A2 and the second platform A4 are communicated through a third channel B3 and a fourth channel B4; wherein, the first station hall Al consists of a first partition AS and a second partition A6, the first platform A2 consists of a third partition A7 and a fourth partition A8, the second station hall A3 consists of a fifth partition A9 and a sixth partition A10, and the second platform A4 consists of a seventh partition A11 and an eighth partition A12. Partitions of the platforms and the station halls are only used for distinguishing the regions where pipes arranged at two ends of the platforms or the station halls are located.
    [0025] [0025] As shown in Fig. 1, a first tunnel A13 is located at one side of the first platform A2, and a second tunnel A14 is located at one side of the second platform A4. One of the first tunnel A13 and the second tunnel A 14 serves as an upgoing tunnel and the other serves as a downgoing tunnel, which are not limited specifically. A first rail- top heat discharge pipe P1 and a first rail-bottom heat discharge pipe Q1 are arranged in the first tunnel A13, and the first heat discharge sub-system is respectively communicated to the first rail-top heat discharge P1 and the first rail-bottom heat discharge pipe Q1. Specifically, the first heat discharge sub-system comprises a first heat discharge pavilion C1, a first heat discharge fan GI and a first silencer Kl, a communicating pipe between the first heat discharge pavilion C1 and the first heat discharge fan G1 is mounted with a first air valve L1 thereon, a communicating pipe between the first silencer K 1 and the first rail-top heat discharge pipe P1 is mounted with
    [0026] [0026] A third smoke discharge outlet O3 and a fourth smoke discharge outlet O4 are provided in the first tunnel A13, the third smoke discharge outlet O3 and the fourth smoke discharge outlet O4 corresponding to two ends of the first platform A2, a first tunnel smoke discharge sub-system is connected to the third smoke discharge outlet O3 and a second tunnel smoke discharge sub-system is connected to the fourth smoke discharge outlet O4. The first tunnel smoke discharge sub-system comprises a first range tunnel pavilion D1, a first range tunnel fan H1 and a third silencer K3 that are connected in order, a communicating channel between the first range tunnel pavilion D1 and the first range tunnel fan HI is mounted with a tenth air valve L10 thereon, and a communicating channel between the third silencer K3 and the third smoke discharge outlet O3 is mounted with an eleventh air valve L11 thereon. In addition, the first tunnel smoke discharge sub-system is further provided with a first tunnel smoke discharge
    [0027] [0027] Similarly, a fifth smoke discharge outlet O5 and a sixth smoke discharge outlet O6 are provided in the second tunnel A14, the fifth smoke discharge outlet O5 and the sixth smoke discharge outlet O6 corresponding to two ends of the second platform A4, a third tunnel smoke discharge sub-system is connected to the fifth smoke discharge outlet O5, and a fourth tunnel smoke discharge sub-system is connected to the sixth smoke discharge outlet O6. The third tunnel smoke discharge sub-system comprises a third range tunnel pavilion D3, a third range tunnel fan H3 and a fifth silencer K5 that are connected in order, a communicating channel between the third range tunnel pavilion D3 and the third range tunnel fan H3 is mounted with a sixteenth air valve L16 thereon, and a communicating channel between the fifth silencer K5 and the fifth smoke discharge outlet O5 is mounted with a seventeenth air valve L17 thereon. In addition, the third tunnel smoke discharge sub-system is further provided with a third tunnel smoke discharge branch communicating the third range tunnel pavilion D3 and the fifth smoke discharge outlet O5, the third tunnel smoke discharge branch together with the seventeenth air valve L17, the third range tunnel fan H3 and the fifth silencer K5 forms a pipe parallel setting, and a fifteenth air valve L 15 is mounted on the third tunnel smoke discharge branch. The fourth tunnel smoke discharge sub-system comprises a fourth
    [0028] [0028] A platform and an adjacent tunnel are spaced by a platform door, the platform door comprises plural pairs of fixing doors and sliding doors, a platform door controller is disposed above each pair of fixing doors and sliding doors, and a row of heat discharge valves are mounted above the platform door controller. The first platform A2 and the first tunnel A13 are spaced by a first platform door. As shown in Fig. 2, the first platform door comprises a plurality of first platform door fixing doors S1 and first platform door sliding doors T1 disposed in one-to-one correspondence to the first platform door fixing doors S1, a first platform door controller V1 is mounted above each pair of first platform door fixing door S1 and first platform door sliding doors T1, and a smoke discharge valve above the first platform door Ul is distributed above the first platform door controller V1. The second platform A2 and the second tunnel A14 are spaced by a second platform door. As shown in Fig. 2, the second platform door comprises a plurality of second platform door fixing doors S2 and second platform door sliding doors T2 disposed in one-to-one correspondence to the second platform door fixing doors S2, a second platform door controller V2 is mounted above each pair of second platform door fixing door S2 and second platform door sliding doors T2, and a smoke discharge valve above the second platform door U2 is distributed above the second platform door controller V2. In an actual current engineering application, due to up flow of smoke in case of a fire occurring, thus a smoke discharge valve is disposed at a height close to a platform ceiling for sufficient smoke discharge. However, it is generally necessary to arrange various pipes and lines above the platform. It is easy for
    [0029] [0029] A first air supply pipe M1 and a first smoke discharge pipe N1 are arranged in a first partition A5 located at a first end of the first station hall A1, a third air supply pipe M3 and a third smoke discharge pipe N3 are arranged in a third partition A7 located at a first end of the first platform A2, and one set of first public area air supply sub-system and first public area smoke discharge sub-system is shared by the first platform A2 and the first station hall A1. The first public area air supply sub-system comprises a first public area air supply pavilion F1 and a first public area air supply fan JI and a seventh silencer K7, a communicating pipe between the first public area air supply pavilion F1 and the first public area air supply fan J1 is mounted with a twenty- first air valve L21 thereon, a communicating pipe between the seventh silencer K7 and the first air supply pipe MI is mounted with a twenty-second air valve L22 thereon, and a communicating pipe between the seventh silencer K7 and the third air supply pipe M3 is mounted with a twenty-third air valve L23 thereon. Air can be supplied to the first partition A5 or the third partition A7 by controlling switches of the twenty-first air valve L21, the twenty-second air valve L22 and the twenty-third air valve L23. The first publie area smoke discharge sub-system comprises a first public area smoke discharge pavilion El, a first public area smoke discharge fan 11 and an eleventh silencer Kl11, a communicating pipe between the first public area smoke discharge pavilion E1 and the first public area smoke discharge fan I1 is mounted with a thirty-third air valve L33 thereon, a communicating pipe between the eleventh silencer K11 and the first smoke discharge pipe NI is mounted with a thirty-fourth air valve L34 thereon, and a communicating pipe between the eleventh silencer K11 and the third smoke discharge pipe N3 is mounted with a thirty-fifth air valve L35 thereon. Smoke discharge of the first partition A5 or the third partition A7 can be realized by controlling switches of the thirty- three air valve L33, the thirty-fourth air valve L34 and the thirty-fifth air valve L35.
    [0030] [0030] Similarly, a second air supply pipe M2 and a second smoke discharge
    [0031] [0031] A fifth air supply pipe M5 and a fifth smoke discharge pipe N5 are arranged in a fifth partition A9 located at a first end of the second station hall A3, and a seventh air supply pipe M7 and a seventh smoke discharge pipe N7 are arranged in a seventh partition All located at a second of the second platform. The third public area air supply pavilion F3, the twenty-seventh air valve L27, the third public area air supply fan J3 and the ninth silencer K9 are respectively connected to the fifth air supply pipe MS and the seventh air supply pipe M7, the fifth air supply pipe M5 is mounted with a twenty-eighth air valve L28 thereon, the seventh air supply pipe M7 is mounted with a twenty-ninth air valve L29 thereon, and air supply for the fifth partition A9 or the seventh partition All can be realized by controlling the twenty-seventh air valve L27, the twenty-eighth air valve L28 and the twenty-ninth air valve L29. The third public area smoke discharge pavilion E3, the thirty-ninth air valve L39, the third public area smoke discharge fan I3 and the thirteenth silencer K13 are respectively connected to the fifth smoke discharge pipe N5 and the seventh smoke discharge pipe N7, the fifth smoke discharge pipe NS is mounted with a fortieth air valve L40 thereon, the seventh smoke
    [0032] [0032] A sixth air supply pipe M6 and a sixth smoke discharge pipe N6 are arranged in a sixth partition A10 located at a second end of the second station hall A3, and an eighth air supply pipe M8 and an eighth smoke discharge N8 are arranged in an eighth partition A12 located at a second end of the second platform. The fourth public area air supply pavilion F4, the thirtieth air valve L30, the fourth public area air supply fan J4 and the tenth silencer K10 are respectively connected to the sixth air supply pipe M6 and the eighth air supply pipe M8, the sixth air supply pipe M6 is mounted with a thirty-first air valve L31 thereon, the eighth air supply pipe M8 is mounted with a thirty- second air valve L32 thereon, and air supply for the sixth partition A10 or the eighth partition A12 is realized by controlling the thirtieth air valve L30, the thirty-first air valve L31 and the thirty-second air valve L32. The fourth public area smoke discharge pavilion E4, the forty-second air valve L42, the fourth public area smoke discharge fan 14 and the fourteenth silencer K 14 are respectively connected to the sixth smoke discharge pipe N6 and the eighth smoke discharge pipe N3, the sixth smoke discharge pipe N6 is mounted with a forty-third air valve L43 thereon, the eighth smoke discharge pipe N8 is mounted with a forty-fourth air valve L44 thereon, and smoke discharge for the sixth partition Al0 or the eighth partition A12 is realized by controlling the forty-second air valve L42, the forty-third air valve L43 and the forty-fourth air valve L44.
    [0033] [0033] Based on the above embodiments, in order to prevent smoke generated by fire occurring to one platform spreading to another platform, a communicating channel between the two platforms is provided with a smoke screen thereon. As shown in Fig. 1, a top of the first channel B1 is provided with a first smoke screen R1, a top of the second channel B2 is provided with a second smoke screen R2, and the first smoke screen Rl and the second smoke screen R2 can be 45cm, 50cm or 55cm, which are not limited herein specifically.
    [0034] [0034] In addition, embodiments of the present invention further provide a method for ventilation and smoke discharge using the above fire ventilation and smoke discharge system for a platform of a separated island subway underground station, wherein when a fire occurs to one platform, a single-platform fire mode is executed. The single-platform fire mode comprises: starting a smoke discharge valve above a platform
    [0035] [0035] As shown in Fig. 1, when a fire occurs to the first platform A2, it is automatic and linked to start the first public area smoke discharge fan I1 and the second public area smoke discharge fan 12, to start the thirty-third air valve L33, the thirty-fifth air valve L35, the thirty-sixth air valve L36 and the thirty-eighth air valve L38, and to close the thirty-fourth air valve L34 and the thirty-seventh air valve L37, such that the first public area smoke discharge fan 11 and the second public area smoke discharge fan [2 discharge smoke for the first platform A2 through the third smoke discharge pipe N3 and the fourth smoke discharge pipe N4, and discharge smoke through platform public area smoke discharge sub-systems at two ends of the first platform A2. It is automatic and linked to start the first heat discharge fan G1, to start the first air valve L1 and the second air valve L2 and to close the third air valve L3, such that the first heat discharge fan Gl and the first rail-top heat discharge pipe Pl are in communication, so as to assist smoke discharge for the first platform A2, namely, to start a heat discharge sub-system connected to the first platform A2 for assisting smoke discharge. It is automatic and linked to start the smoke discharge valve above the first platform door Ul, and it is automatic and linked to start the first range tunnel fan H1, and the second range tunnel fan H2, to start the tenth air valve L 10, the eleventh air valve L11, the thirteenth air valve L13 and the fourteenth air valve L14, and to close the ninth air valve L9 and the twelfth air valve L 12, such that the first range tunnel fan HI and the second range tunnel fan H2 discharge smoke for the first platform A2 respectively through the third smoke discharge outlet O3 and the fourth smoke discharge outlet O4, i.e. starting tunnel smoke discharge sub-systems at two ends of the first platform A2 for smoke discharge. The third public area air supply fan J3 and the fourth public air supply fan J4 at two ends of the second station hall A3 are started, the twenty-seventh air valve L27, the twenty-ninth air valve L29, the thirtieth air valve L30 and the thirty-second air valve L32 are started, and the
    [0036] [0036] The first public area air supply fan JI and the second public area air supply fan J2 at two ends of the first station hall A1 are closed, the twenty-first air valve L21, the twenty-second air valve L22, the twenty-third air valve L23, the twenty-fourth air valve L24, the twenty-fifth air valve L25 and the twenty-sixth air valve L26 are closed; the third public area smoke discharge fan I3 and the fourth public area smoke discharge fan 14 at two ends of the second station hall A3 are closed, the thirty-ninth air valve L39, the fortieth air valve L40, the forty-first air valve L41, the forty-second air valve L42, the forty-third air valve L43 and the forty-fourth air valve L44 are closed; the second public area heat discharge fan G2 outside the second platform A4 is closed, the fifth air valve L5, the seventh air valve L7 and the eighth air valve L8 are closed; the third range tunnel fan H3 and the fourth range tunnel fan H4 at two ends of the second platform A4 are closed, the sixteenth air valve L16 and the eighteenth air valve L18 are closed, the fifteenth air valve L15, the seventeenth air valve L 17, the eighteenth air valve L 18 and the twentieth air valve L20 are started; and the smoke discharge valve above the second platform door U2 is closed. That is, station hall public area air supply sub-systems at two ends of the first station hall A1 are closed, station hall public area smoke discharge sub- systems at two ends of the third station hall A3 are closed, the heat discharge sub-system of the second platform A4 is closed, and tunnel smoke discharge sub-systems at two ends of the second platform A4 and the smoke discharge valve above the second platform door U2 are closed.
    [0037] [0037] When a fire occurs to the second platform A4 only, operations thereof are similar with the above, which are not repeated herein.
    [0038] [0038] The method for ventilation and smoke discharge provided by embodiments of the present invention involves, when a fire occurs to a single platform, executing a single-platform fire mode, starting a tunnel smoke discharge sub-system of the platform that is on fire, a smoke discharge vale above a platform door, a heat discharge sub-system and a platform public area smoke discharge sub-system, closing a platform public area air supply sub-system of the platform that is on fire, and performing
    [0039] [0039] Wherein occurrence of fire to the first platform A2 is determined by a triggering signal sent by a fire finder in the first platform A2.
    [0040] [0040] Based on the above embodiment, when fire of a platform spreads to another platform, a dual-platform fire mode is executed. The dual-platform fire mode comprises: starting smoke discharge valves above platform doors of the two platforms and tunnel smoke discharge sub-systems at two ends of the platforms, starting a heat discharge sub-system, a platform public area smoke discharge sub-system and a tunnel smoke discharge sub-system that are respectively connected to the two platforms, and starting station hall public area air supply systems at two ends of two station halls.
    [0041] [0041] For example, as shown in Fig. 1, after fire of the first platform A2 spreads to the second platform A4 and causes a fire finder of the second platform A4 to alarm, it is linked to start smoke discharge fans 13, I4 at two ends of the second platform A4, to start air valves L39, L40, L42 and L43, and to close air valves L41, and L44, such that the third public area smoke discharge fan 13 and the fourth public area smoke discharge fan 14 discharge smoke through the seventh smoke discharge pipe N7 and the eighth smoke discharge pipe N8. It is linked to start the second heat discharge fan G2, to start the fifth air valve L5 and the seventh air valve L7, and to close the eighth air valve L8, such that the second heat discharge fan G2 discharges smoke for the second platform A4 through the second rail-op heat discharge pipe P2. It is automatic and linked to start the smoke discharge outlet above the second platform door U2, and it is automatic and linked to start the third range tunnel fan H3 and the fourth range tunnel fan H4, to start the sixteenth air valve L 16, the seventeenth air valve L 17, the eighteenth air valve L18 and the twentieth air valve L20, and to close the fifteenth air valve L15 and the nineteenth air valve L19, such that the third range tunnel fan H3 and the fourth range tunnel fan H4 discharge smoke for the second platform A4 respectively through the fifth smoke discharge outlet O5 and the sixth smoke discharge outlet O6. It is automatic and linked
    [0042] [0042] In the embodiments, when fire spreads from the first platform A2 to the second platform A4, the tunnel smoke discharge sub-system connected to the second platform A4, the smoke discharge valve above the platform door, the platform public area smoke discharge sub-system and the station hall public area air supply sub-system of the first station hall Al above the first platform A2 are started. Thus, station halls above two platforms supply air for the platform below each station hall to keep balance of air volume, which is advantageous for fast discharge of smoke.
    [0043] [0043] Thus, the method for ventilation and smoke discharge provided by embodiments of the present invention involves, when a fire occurs to only one platform, executing a single-platform fire mode, the first fire mode comprising: starting a smoke discharge path of the platform that is on fire and a ventilation path of a station hall at an opposing side, and simultaneously closing an air supply path of the station hall at a side that is on fire and a ventilation path of a platform at an opposing side; and when fire spreads from one platform to another platform, starting a dual-platform fire mode, and based on the single-platform fire mode, further starting a smoke discharge path of a platform at an opposing side and an air supply path of a station hall at a side that is on tire. The above fire modes can be selectively started according to the actual situation, which is advantageous to improve smoke discharge efficiency.
    [0044] [0044] Wherein when fire of a platform at a side that is on fire spreads to a platform at a side that is not on fire, firstly executing the single-platform fire mode continues; and then the dual-platform fire mode is executed if a feedback signal indicating successful execution of the single-platform fire mode is received or if a feedback signal indicating successful execution of the single-platform fire mode is not received until a subsequent 1min-2min.
    [0045] [0045] Specifically, mature electric control devices are adopted as the air supply fans, the smoke discharge fans and air valves etc. in the fire ventilation and smoke
    [0046] [0046] Finally, it should be noted that the foregoing embodiments are merely intended for describing the technical solutions of the present invention, but not for limiting the present invention. Although the present invention is described in detail with reference to the foregoing embodiments, a person of ordinary skill in the art should understand that they may still make modifications to the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features thereof. However, these modifications or replacements do not depart the substance of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
    权利要求:
    Claims (8)
    [1]
    1. A fire ventilation and smoke extraction system for a platform of a separated island-like underground station, wherein the separated island-like underground station comprises two separate platforms, two separate station halls above the platforms respectively and two tunnels, one on each side of the platforms, characterized in that that: the two platforms and the two station halls are separately connected by passageways; the tunnels and associated platforms are separated by platform screen doors; the two ends of each of the tunnels are separately connected to a tunnel smoke extraction subsystem; a smoke exhaust damper is fitted above each of the platform doors and in the event of a fire, the smoke exhaust damper on the affected side of the platform opens so that the public area of the platform and the tunnel smoke exhaust subsystem are connected; each of the tunnels is connected to a heat sink subsystem connected to a rail-top heat sink and a rail-bottom heat sink installed in the tunnels; and the platform located on the same side and the station concourse share one set of air supply and smoke extraction systems for air supply or smoke extraction of the public space of the platform and the station concourse, thus forming a smoke extraction subsystem of the public space on the platform, a subsystem for the air supply to the public space on the platform, a subsystem for the smoke extraction of the public space in the station hall and a subsystem for the air supply to the public space in the station hall.
    [2]
    A fire ventilation and smoke exhaust system for a platform of a partitioned island-type underground station according to claim 1, characterized in that the smoke exhaust damper is located above a platform door controller controlling the opening and closing of the platform doors and is located below the ceiling pipes of the platform.
    [3]
    Fire ventilation and smoke extraction system for a platform of a separated island-type underground station according to claim 1 or 2, characterized in that there are two said passages connecting the two platforms, and draft curtains are arranged within each of the passages.
    [4]
    A method of ventilation and smoke extraction using the fire ventilation and smoke extraction system for a platform of a partitioned island-like underground station according to any one of claims 1 to 3, characterized in that in case of fire on a platform thereof, a single platform fire mode is performed, where the single platform fire mode consists of: opening the smoke exhaust damper above the platform doors on the platform where there is a fire, and commissioning the heat exhaust subsystem, the smoke exhaust subsystem from the public area on the platform and the tunnel smoke exhaust subsystem connected to the platform where the fire is, and simultaneously commissioning the public space air supply subsystems in the concourse at both ends of the concourse on the side that is not on fire, and shutting down the heat dissipation subsystem, the smoke dissipation subsystem of the public space on the platform and tunnel smoke af feed subsystem connected to the non-fired platform, and simultaneously shut down the air supply subsystems to the public space in the concourse at both ends of the concourse on the side that is on fire.
    [5]
    Method according to claim 4, characterized in that only the connecting channel between the heat sink subsystem and the rail-top heat sink in the tunnel is opened at the seat of the fire, and the connecting channel between the heat sink subsystem and the rail-bottom heat sink in the tunnel is opened at the fire is closed.
    [6]
    A method according to claim 4 or 5, characterized in that it further comprises: in the event that a fire on one platform spreads to the other non-fired platform, performing a dual platform fire mode, the dual platform fire mode consisting of : opening the smoke exhaust valves above the platform screen doors of both platforms and opening the tunnel smoke exhaust subsystems at both ends of the platforms; and commissioning the heat dissipation subsystems, the smoke extraction subsystems of the public space on the platforms and the tunnel smoke extraction subsystems, respectively, which are connected to both platforms; and commissioning the public space air supply subsystems in the concourse at both ends of the two concourses.
    [7]
    Method according to claim 6, characterized in that the fire on the platform is determined by an alarm signal which is activated by a fire detector in the platform.
    [8]
    A method according to claim 6, characterized in that in the case of a fire on one platform that spreads to the other platform that is not on fire, the single platform fire mode is performed first, and the dual platform fire mode is performed provided that a feedback signal of a successful execution of the single platform fire mode is received or a feedback signal of a successful execution of the single platform fire mode is not received within 1-2 min.
    类似技术:
    公开号 | 公开日 | 专利标题
    NL2028659A|2021-09-13|Fire ventilaiton and smoke discharge system and method for platform of separated island subway underground station
    CN100557192C|2009-11-04|Improved tunnel smoke exhaust method and with the tunnel smoke evacuation system of independent fume extractor
    BRPI0400808A|2005-01-11|One engine inlet for a vehicle with one engine mounted on a body structure
    KR101088341B1|2011-11-30|A double direction ventilation system for tunnel and method for it
    CN105971626A|2016-09-28|Double-track tunnel provided with vertical shaft smoke discharge and ventilation combined and complemented system
    LU500340B1|2022-01-04|Fire ventilation and smoke discharge system and method for station hall of separated island subway underground station
    CN110118099B|2020-04-07|Fire ventilation and smoke exhaust method for subway transfer station platform
    CN110778351B|2021-12-31|Combined ventilation and smoke exhaust method for urban underground intercommunication tunnel
    SU1588874A1|1990-08-30|Method of tunnel ventilation
    RU2721990C1|2020-05-25|System for ventilation of running tunnels between metro stations in smoke removal mode during fire on haul
    CN111075490B|2021-06-11|Fire ventilation and smoke exhaust method for tunnel between large and large iron areas across river and sea
    CN110454210A|2019-11-15|Subway is grown up admission section threaded list road smoke control system out
    JP2003113700A|2003-04-18|Tunnel ventilation simulation equipment and tunnel ventilation control device
    CN210750982U|2020-06-16|A, B frame starting device for rail transit water mist
    CN110940041B|2021-01-15|Fire ventilation and smoke exhaust method for subway transfer station and station hall
    KR102337826B1|2021-12-09|Transverse tunnel structure installed in long tunnel and smoke exhaust method for the same
    KR20190079004A|2019-07-05|Apparatus for operating staggered crosswalk at roundabouts and method thereof
    CN106049533A|2016-10-26|Long-distance comprehensive pipe gallery system
    RU2747139C1|2021-04-28|Ventilation system of metro main line tunnels with sections of connection of double-track and single-track tunnels
    KR20200059824A|2020-05-29|A centrifugal blower for an air curtain having a bidirectional suction passage
    CN212508396U|2021-02-09|HA mine air door pneumatic control system
    CN208885657U|2019-05-21|A kind of pneumatic device control system with adjusting, quick closing valve and guarantor's bit function
    CN112253206B|2021-11-09|Highway tunnel ventilation system and method combining inclined shaft feeding and discharging and single transverse channel
    CN214303899U|2021-09-28|Novel flat guide type and semi-transverse type combined ventilation system
    CN112780329A|2021-05-11|Construction ventilation method for vertical shaft assisted parallel three-hole method tunnel
    同族专利:
    公开号 | 公开日
    CN111980742A|2020-11-24|
    CN111980742B|2021-07-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CN108049905B|2017-11-03|2019-04-16|中国安全生产科学研究院|A kind of totally-enclosed gate underground station platform fire ventilation smoke exhaust method of subway|
    CN108533305B|2018-02-14|2019-03-19|中国安全生产科学研究院|The ventilation smoke exhaust method of train fire in a kind of Subway Tunnel|
    CN109139079A|2018-09-17|2019-01-04|中铁四院集团西南勘察设计有限公司|Subway tunnel ventilating system|
    CN109252885B|2018-10-25|2019-09-17|中国安全生产科学研究院|A kind of subway underground station an island platform Fire Ventilation smoke evacuation system and method|
    RU2721990C1|2019-06-11|2020-05-25|Акционерное общество "Метрогипротранс" |System for ventilation of running tunnels between metro stations in smoke removal mode during fire on haul|
    CN111119972B|2020-02-28|2021-07-13|中国安全生产科学研究院|Ventilation and smoke exhaust system and method for station hall of underground station|CN112610265A|2020-12-15|2021-04-06|中国安全生产科学研究院|Multi-station collaborative ventilation and smoke exhaust system of short-distance dense station and control method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CN202010817695.8A|CN111980742B|2020-08-14|2020-08-14|Fire ventilation and smoke exhaust system and method for platform of separated island type subway underground station|
    [返回顶部]