• 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:

    公开号:SU961546A3
    申请号:SU802909654
    申请日:1980-04-21
    公开日:1982-09-23
    发明作者:Грассэ Даниель；Мартино Бернар
    申请人:Сосьете Шимик,Де Шарбоннаж (Фирма)；
    IPC主号:
    专利说明:

    reliable when ignition hazards are not excluded at the outlet of the reactor or separator.
    The aim of the invention is to intensify the process and increase the fire and explosion hazards due to the complete contact of the combustible gas with the absorbing liquid.
    The goal is achieved by the fact that a device for preventing ignition and explosion of combustible gases in the event of leakage from a high pressure reservoir, comprising a housing, at least one connecting pipe connecting it to a high pressure reservoir, a safety membrane installed between the connecting pipe ™ a combo and a reservoir, a receptacle for the birage liquid and a pipeline for the discharge of the spent liquid, equipped with a nozzle for the discharge of exhaust gases and a deflector installed in the end face a tube which is made perforated and placed in the steam zone of a body installed horizontally and made rectangular, with the exhaust gas outlet side fixed to the upper part of the body and connecting its steam zone to the atmosphere, and the body volume is 2-100 times larger the volume of the high pressure reservoir with its cross section is 10010000 times the cross section of the connecting pipe.
    The drawing schematically shows a device with partial cuts, a general view.
    The device contains a high-pressure vessel 1 (reactor or separator) equipped with safety discs 2 and 3 separating this separator from connecting pipes 4 and 5. The upper sections 6 and 7 of these connecting pipes have through slots and, respectively, dispersers are located above them. deflectors 8 and 9, having the shape of an inverse cone. Connecting pipes 4 and 5 enter into a horizontal collector 10 of a rectangular shape from the bottom of the "Lower part of the collector 10 filled with water, the upper ends of the pipes 4 and 5 rise above the surface water At the bottom of the collector, valves 11 and 12 are also provided for the purpose of diverting a part of the water to the overflow pipe 13 if necessary; At one end of the collector 10, there is a chimney 14 through which the contents of the high-pressure vessel are led to the external environment. In addition, the collector 10 is provided with devices 15 and 16 for introducing water. These devices 15 and 16 communicate via connecting lines 17 and 18 with tanks 19 and 20 for
    waters, which, in turn, are equipped with valves 1 and 21 and 22, through which water from the sources of its storage (not along the azan) passes. The operation of the devices 15 and 16 is determined by the opening of the valves 23 and 24 of the pyrotechnic type, and the opening of these valves, in turn, is determined by the rupture sensor of at least one of the safety discs 2 or 3 by means of the sensors 25 and 26 located directly beside these disks and associated with control valves 23 and 24 (not shown). The operation of the proposed device includes a phase for decomposition gas in the described vessel, the phase of trapping should be carried out under conditions of pressure less than 50 bar, temperatures below 450c and oxygen concentrations less than 5%. In addition, this phase implies the condition of maintaining the largest part of the gas removal device in the atmosphere of an inert gas, it is desirable that the pressure of the inert gas inside this removal device be less than 1.5 bar.
    The capture of gases can be carried out in combination with known methods of reducing the hazards of ignition and. explosion resulting from the decomposition of ethylene under high pressure, especially in combination with methods involving cooling decomposition gases.
    The high pressure vessel is either a reactor (pressure about 300-3000 bar) in which ethylene is polymerized, or a separator (pressure 100500 bar) in which the resulting polymer and unreacted ethylene are separated. This pressure vessel is usually cylindrical or tubular in shape, and its side wall is provided with at least one and usually several safety devices. The collector of the device is connected to a high-pressure vessel by means of connecting pipes in an amount equal to the number of safety devices,
    This collector has a predominantly rectangular, cylindrical or close to cylindrical shape and is preferably located along the horizontal axis in such a way that the average section in the horizontal plane is at a very high level. This cross section is 10010000 times the cross section taken in total safety devices. The connecting pipe, coming from a high-pressure vessel, enters the manifold either from below or above the manifold. The manifold may be located either down or below the level - the location of the vessel under high pressure. The proposed device may include several chimneys (exhaust gas channels) connecting the collector with the external environment. However, it is desirable that it include only one such chimney in order to eliminate the danger of delayed ignition of gases removed from this chimney with gases removed from the other chimney. This single chimney is preferably positioned vertically above the collector. When it is desired, what happens most often, that each high-pressure polymerization vessel (reactor or separator) is equipped with the proposed device, the chimney of the exhaust system from the reactor It is located above the END of the collector of this system, furthest from the separator, above which is the chimney of this system. At least one of the connecting pipes passing between the pressurized vessel and the manifold is provided at its upper end with a gas disperser, which (device) is able to change the direction of the gases leaving the pressure vessel and distribute evenly these gases in the reservoir. Usually, each of the connecting pipes is vertically placed between the pressure vessel and the call; the reactor, except for the case of the need to have a rounded portion, which is not directly adjacent to the pressure vessel, when the pressure vessel itself is vertically, As a result, the decomposition gases coming out of the upper end of the connecting pipe, in the absence of the necessary obstacle in their path, move perpendicular to the opposite wall of the collector, hit it, and sing a number of reflections from this wall under the wall As they pass before they are sent to the chimney, to supplement the effect of suppressing pressure waves and passing through the exhaust gases, which have already been carried out with the help of a gas exhaust device, it is desirable to change the direction of the exhaust gases in this way, as soon as they enter the collector, so that they are evenly distributed in the collector and extend horizontally or horizontally. This is achieved quite simply with the help of a dispersant-dephlegmator installed at the end of the connecting pipe and having, for example, a reverse cone shape connected to the connecting pipe by means of a series of props (as shown in the drawing) or the form of a spray pump. The collector of the gas removal device, if necessary, can be filled with a partially inert liquid, having injected heat of evaporation, in order to cool the exhaust gases. The cylindrical shape of a horizontally arranged manifold is beneficial for efficiently cooling gases due to the increased contact surface between said gases and an inert liquid having an increased heat of vaporization. By inert liquid is meant a chemical compound that does not react chemically with ethylene and decomposition gases and is in a liquid state under normal conditions of the collector (pressure close to atmospheric, temperature close to the upper limit of the ambient temperature). This inert liquid, having the evaporative heat of evaporation, is preferably water, but cannot also be halogenated carbon. With this method, the proposed device, when the collector is partially inertly filled with liquid, and in the case where the connecting pipe is introduced into the collector from below, it is desirable that this connecting pipe rise above the level of the inert liquid so that this inert liquid in the absence of vorticity, caused by the removal of decomposition gases could not penetrate this connecting pipe and reach the safety device causing a danger of embrittlement or closure of this connecting pipe would. If necessary, the manifold of the gas removal device molset should include at least one input device for inert liquid with an increased evaporation heat, the operation of which is determined by the safety device cover sensor. By an inert liquid is meant the same fluid, the definition of which has been given, and preferably the same fluid that partly fills the collector. When the collector includes at least the bottom of such an inert liquid injection device, this device is preferably positioned along the same axis as the connecting pipe along the same axis as the aza disperser, if present. Installation of this inert liquid results in cooling of the decomposition gases and, when the collector is partially filled with an inert liquid, it leads to additional cooling of these gases due to the presence of this inert liquid. In accordance with the invention, the collector may be provided with various types of inert fluid injection devices, for example, a spray pump type device.
    In the event that, in addition to reducing the hazards of ignition and explosion resulting from the decomposition of ethylene, it is desirable to ensure that the decomposition gases are captured with complete elimination of atmospheric pollution, the exhaust device according to the invention should additionally include a safety device separating the collector from each chimney, and tank for trapping exhaust gases, communicating with the collector through the connecting pipe.
    This gas collection tank should have a significant volume. so that it can hold under the pressure of less than 50 bar the entire contents of the high-pressure vessel in which this decomposition takes place. This volume may be greater than the volume of the reservoir, and even may comprise several reservoir volumes. The trapping vessel, in addition to the connecting pipe, may be equipped with an exhaust pipe having a valve, through which the extracted gases can be directed to the combustion device.
    Finally, when it is desirable to further reduce the danger of ignition or explosion, while maintaining an inert gas in the atmosphere (i.e., practically free from gases that can chemically interact with decomposition gases such as methane, hydrogen, ethylene) and in particular, oxygen-free in the largest part of the gas exhaust device according to the invention, the chimney (or each chimney) of this device, in order to limit the flow of gas constituting the inert atmosphere, may include a shutter, ayuidai all
    chimney section, for example, a ball-shaped device or a gas-tight film (curb) made of rubber, and filled with gas under pressure exceeding the pressure created
    in the collector. .
    权利要求:
    Claims (1)
    [1]
    1. The patent of France 2165018, cl. And 62 with 35/00, 1973.
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    同族专利:
    公开号 | 公开日
    DE3060843D1|1982-11-04|
    JPS568413A|1981-01-28|
    JPS6314003B2|1988-03-29|
    MA18812A1|1980-12-31|
    CA1192111A|1985-08-20|
    FR2455237A1|1980-11-21|
    AT1539T|1982-09-15|
    BR8002521A|1980-12-09|
    PT71117A|1980-05-01|
    US4627962A|1986-12-09|
    EP0018881B1|1982-09-15|
    GR68045B|1981-10-29|
    ES490850A0|1980-12-01|
    FR2455237B1|1982-10-29|
    ES8100717A1|1980-12-01|
    US4534942A|1985-08-13|
    EP0018881A1|1980-11-12|
    CS225820B2|1984-02-13|
    MX160180A|1989-12-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2552472A|1946-02-11|1951-05-08|Theron D Whidden|Safety system for tanks containing inflammable fluids|
    US2555247A|1949-07-28|1951-05-29|Vickers Inc|Semiconductive cell|
    GB1313458A|1970-11-27|1973-04-11|Stamicarbon|Process and installation for the preparation of homo- or copolymers of ethylene|
    FR2165018A5|1971-12-14|1973-08-03|Ethylene Plastique Sa|
    US3895926A|1973-05-02|1975-07-22|Bernard J Lerner|Method for treating a gas|
    US3965136A|1975-09-24|1976-06-22|Olin Corporation|Alkoxysilane cluster compounds and their preparation|
    DE2631834C3|1976-07-15|1980-05-14|Basf Ag, 6700 Ludwigshafen|Process for the expansion of ethylene high pressure polymerization systems|FR2455239B1|1979-04-25|1982-10-29|Charbonnages Ste Chimique|
    DE3447073C2|1984-12-22|1988-06-16|Lga Gastechnik Gmbh, 5480 Remagen, De|
    DE3633819A1|1986-10-04|1988-04-14|Basf Ag|SEPARATION SYSTEM FOR REDUCING SOLID EMISSIONS IN RELAXATION PRIORITIES AT HIGH PRESSURE POLYMERIZATION REACTORS|
    DE3641513A1|1986-12-04|1988-06-09|Basf Ag|METHOD FOR REDUCING THE EMISSION OF HYDROCARBONS IN RELAXATION PROCEDURES ON HIGH PRESSURE POLYMERIZATION REACTORS|
    US4741881A|1987-01-08|1988-05-03|Westinghouse Electric Corp.|Chemical reactor|
    US5116591A|1989-04-12|1992-05-26|Mollenberg-Betz, Inc.|Method and apparatus for combining fluids|
    DE4102245C2|1991-01-24|1992-11-12|Ilka Maschinenfabrik Halle Gmbh, O-4002 Halle, De|
    FR2730791B1|1995-02-17|1997-04-30|Mulhouse Dornach Ind Chimique|SAFETY DEVICE OF A GAS OR VAPOR PRESSURE APPARATUS|
    US5877393A|1996-08-30|1999-03-02|Solucorp Industries, Ltd.|Treatment process for contaminated waste|
    CN110947126A|2019-12-06|2020-04-03|武汉理工大学|Explosion-proof explosion-venting linkage system for combustible gas and dust conveying pipeline|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR7910442A|FR2455237B1|1979-04-25|1979-04-25|
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