• 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:
    A heat exchanger comprising a pipe section (12, 112, 212, 312,) through which a heat transfer medium flows, a first and a second pipe (14, 16, 114, 116, 214, 216, 314, 316), which are arranged concentrically and between them an annular space (18, 118, 218, 318,) for guiding the heat-absorbing medium, a first inlet (20, 120, 220, 320,) and a first outlet (22, 122, 222, 322,) in the first tube (14, 114 , 214, 314,) and the first drain (22, 122, 222, 322,) communicate with the annulus (18, 118, 218, 318, 16) so that the annulus (18, 118, 218, 318, 12) and the first drain (22, 122, 222, 322,) form a closed conduit system for the heat-absorbing medium, and deflecting baffles (28, 128,) provided in the annular space (18, 118, 218, 318,), the first Pipe (14, 114, 214, 314,) is closed at its end face only in the region of the annular space (18, 118,218, 318,) and the first and second tube (14, 16, 114, 116, 214, 216.3 14, 316,) the first inlet 8 20, 120, 220, 320,) and the first outlet (22, 122, 222, 322,) are designed as insert in the pipe section (12, 112, 212, 312,) through which the heat transfer medium flows , Heat exchanger wherein the Umlenkschikanen (28, 128,) are designed so that the heat-absorbing medium helically through the annulus (18, 118, 218, 318,) or more longitudinally through the annular space (18, 118, 218, 318,) to lead.
    公开号:AT513300A1
    申请号:T940/2012
    申请日:2012-08-29
    公开日:2014-03-15
    发明作者:Joachim Benz
    申请人:Joachim Benz；
    IPC主号:
    专利说明:

    description
    The present invention relates to a heat exchanger according to the preamble of claim 1. 5 heat exchangers find their use in a variety of applications.
    It is known that, for example, in a central heating, the emitted into the environment flue gases still have a relatively high heat content. The temperatures of the flue gases may well be in the range of 250 ° C to 400 ° C. In general, this heat is released unused to the environment, which is extremely unsatisfactory.
    Thus, attempts have already been made to use the exhaust heat of heating systems by means of heat exchangers. DE 28 20 577 A1 describes a heat exchanger in which the one of
    Heating system coming return water is passed in a sheath helically around a flue pipe. By this device, it is possible to heat the coming out of the heating system return water. 20 The efficiency of this heat exchanger is not yet satisfactory. It is therefore desirable to further increase the efficiency of such a heat exchanger.
    DE 40 10 151 A1 describes an annular gap heat exchanger, which consists of four concentric tubes arranged one inside the other, so that between the individual tubes 25 annular chambers / annular gaps arise, of which the inner tube chamber is flowed through by the heat-carrying medium and in countercurrent process, the two outer Ring chambers are flowed through by the heat-absorbing medium. With this arrangement, the efficiency of the heat exchanger can be significantly increased. 30 For use in a smoke pipe / exhaust pipe, this device is less suitable because the heat-carrying medium is guided in an annular chamber / annular gap. If the flue gas were guided in the annular chamber / the annular gap, this would lead to a high flue gas resistance in an exhaust pipe. The consequence would be an impairment of the deduction of flue gases from the boiler in the chimney.
    It is an object of the present invention to provide a heat exchanger for heat recovery from exhaust gases or flue gases of a heating system, which has a high
    Has efficiency, does not significantly hinder the flue and is also inexpensive
    According to the invention, the object is achieved by a heat exchanger comprising a pipe section through which a heat transfer medium, a first and a second pipe, which are arranged concentrically and which form between them an annular space for guiding the heat-absorbing medium, a first inlet and a first outlet in the first A tube for the heat-receiving medium, wherein the first inlet and the first outlet communicate with the annulus such that the annealing space and the first drain form a closed conduit system for the heat-receiving medium, and baffles provided in the annulus, the first tube is closed at its front side only in the region of the annular space and the first and second tube, the first inlet and the first outlet are formed as an insert in the flowed through by the heat transfer tube section.
    In the heat exchanger according to the invention, the heat transfer medium in the pipe section flows around the outside of the first pipe and through the second pipe. The two concentrically arranged tubes offer only a comparatively low flow resistance for the heat transfer medium flowing through the tube section. The deflection baffles arranged in the annular space between the first and second tubes increase the residence time of the heat-absorbing medium in the tube section through which the heat-transfer medium flows, so that a comparatively high degree of efficiency is achieved. Since the first and second tubes and the first inlet and the first outlet are formed as an insert, they are comparatively inexpensive in the flow-through of a heat transfer tube section mounted on site. Installation becomes particularly simple if the insert and the pipe section are designed as a kit that can be inserted into a pipe.
    According to a preferred embodiment, the deflection baffles are designed to guide the heat-absorbing medium helically through the annulus or several times in the longitudinal direction through the annulus.
    Here, in a preferred embodiment, the deflection baffles are designed as guide elements, which are guided in the axial direction of the harvest and second tube helically in the annular space. The guide elements are preferably plate-shaped made of metal, in particular of sheet metal, or plastic. 3/25 3 ··· ··· ♦ · # ··
    In an alternative preferred embodiment, the deflection baffles comprise a first and a second plate-shaped, aligned parallel to the tube axis guide member which is respectively secured to the first and second tube and at least one end face of the annulus, so that between the first and second tube, a first filling space is formed, 5 wherein the first inlet in the first tube communicates with the first filling space and wherein on the first and / or second guide element, a first inner drain opening is provided. In this way it is possible to guide the heat-absorbing medium in segments along the first and second tubes and then again to steer longitudinally in the opposite direction to increase the residence time of the heat-absorbing medium in the annulus. 10
    In this case, it is preferable for the first and / or the second guide element to be shorter than the first and second tube, so that the first inner drainage opening is formed as a gap between the end face of the annular space and the first and / or second guide element. In this way, the maximum possible distance along the annulus can be exploited 15 to allow the highest possible residence time of the heat-absorbing medium in the annulus.
    In an alternative embodiment, the first and second guide elements are each sealed at its two ends to the end face of the annulus, and the first inner drain opening is provided in the first and / or second guide members.
    According to a preferred further connection, a third guide element is provided, which is fastened to the first and second tube and at least one end face of the annular space to form a second filling space, wherein the first and second filling space communicate with each other by means of the first inner drain opening and wherein second filling space has a second inner drain opening.
    As a result, an additional longitudinal flow of the heat-absorbing medium is achieved, thereby further increasing the residence time of the heat-absorbing medium in the annular space 11. The efficiency of the heat exchanger can thereby be further improved.
    In order to further increase the efficiency of the heat exchanger, it is advantageous that a plurality of filling spaces is provided which communicate with each other. An optimal guidance of the heat-absorbing medium can be advantageously achieved by the fact that in the flow direction of the heat-absorbing medium to each other
    The following inner drainage openings are provided alternately at the two end faces of the annular space.
    In a preferred development of the invention, the heat exchanger further comprises a third and fourth tube, which are concentrically arranged and form a second annulus, and a second inlet on the third tube and a second outlet on the fourth tube, wherein the first and second tube concentrically in the third and fourth pipe are arranged and the first annulus communicates with the second annulus. As a result, for example, the heat-absorbing medium can be guided in the direction of the heat carrier and in the opposite direction of the heat carrier through the heat carrier. The thus prolonged residence time of the heat-absorbing medium in the heat carrier leads to an improved heat exchange between the heat transfer medium and the heat-absorbing medium.
    It is advantageous that deflection baffles are provided in the second annular space.
    Advantageously, the deflection baffles are formed in the same manner as has been described in connection with the first annular space. That is, deflecting baffles can be provided, which result in the heat-absorbing medium being guided helically in the second annular space or alternatively several times along the axial direction of the second annular space.
    In a preferred embodiment, it is provided that at least the front side of the first and / or the second annular space facing the flow of the heat transfer medium is chamfered. In this way, the flow resistance for the heat carrier can be further reduced, so that the influence of the heat exchanger on the heating operation can be further reduced.
    To further optimize the heat transfer from the heat transfer medium to the heat-absorbing medium, it is advantageous that Wärmeleitbleche are provided in the space traversed by the heat transfer medium. The heat conducting plates can in this case extend radially from an annular space in the space through which the heat transfer medium flows.
    Additionally or alternatively, heat transfer plates may be provided in the annulus, which are attached to at least one of the tubes and project into the annulus. The heat transfer sheets are designed so that they do not significantly affect the flow of the heat-absorbing medium in the annulus. 5/25 5 • · • · · * · · · · · · · · · · · · · · · · · ·
    Preferred embodiments of the present invention will be described in more detail in the accompanying drawings, in which:
    1 shows a first embodiment of the invention in plan view,
    FIG. 2 is a plan view according to a second embodiment of the invention,
    3 shows the embodiment shown in Figure 2 in a perspective view, 10th
    FIG. 4 is a plan view of a third embodiment of the present invention;
    5 shows the embodiment shown in Figure 4 in cross section,
    FIG. 6 is a plan view of a fourth embodiment of the present invention;
    Figure 7 shows the embodiment shown in Figure 6 in cross section.
    FIG. 1 shows a first embodiment of a heat exchanger 10 comprising a pipe section 12 through which a heat transfer medium flows, a first pipe 14 and a second pipe 20. The first pipe 14 and the second pipe 16 are arranged concentrically and form between them an annular space 18 for guiding a heat-absorbing medium. The first tube 14 has an inlet 20 and a drain 22. The inlet 20, the annular space 18 and the outlet 22 communicate with each other, so that the annular space 18, the inlet 20 and the outlet 22 form a closed conduit system for the heat-absorbing medium. In the pipe section 12 openings 24, 26 are formed, through which the inlet 20 and the outlet 22 protrudes. The inlet 20 and the outlet 22 are formed as pipelines.
    The first tube 14 is closed in the portion between the first tube 14 and the second tube 16, that is in the region of the annular space 18 at its end faces. The second tube 16 is open on its front side.
    The inlet 20 is arranged on the lateral surface of the first tube 14 at an upper end portion of the tube 14 and the outlet 22 on the opposite side of the tube on the lateral surface of the first tube 14 at the lower end portion of the first tube 14.
    In the annular space 18 are deflecting baffles 28. The deflection baffles 28 are formed as plate-shaped guide elements 30 which in the axial direction of the first and second 6/25 6 ················································ ··· · · · ·· · t ·· ···· ··· ··
    Pipe 14,16 are helically guided to lead the heat-absorbing medium helically in the annular space 18. The guide elements may be metal plates such as a sheet metal or plastic plates. 5 On the outer wall of the first tube 14 and on the inner wall of the second tube 16, a plurality of Wärmeleitblechen 31 is arranged in the radial direction. The Wärmeleitbleche 31 protrude into the space flowed through by the heat transfer medium. The Wärmeleitbleche 31 are thus heated by the heat carrier without representing a flow resistance for the heat carrier. The heat conducting plates 31 serve to additionally conduct heat into the annular space 18 in order to further improve the heat exchange between the heat carrier and the heat-absorbing medium.
    In addition to the Wärmeleitblechen 31 18 heat transfer plates 33 are provided in the annular space. The heat transfer sheets 33 are fixed to the inner wall of the first pipe 14 and the outer wall of the second pipe 16 and project into the annular space 18, respectively. 15 In order not to interfere with the flow of the heat receiving medium, the heat transfer sheets 33 are shorter in the radial direction than the distance between the first tube 14 and the second tube 16, ie the heat transfer plates protrude only over a short section into the annulus. Like the heat conducting plates 31, the heat transfer plates 33 serve to further improve the heat exchange between the heat carrier and the heat-receiving medium.
    If heat-conducting sheets 31 and heat-transfer sheets 33 are provided on both the first pipe 14 and the second pipe 16 in FIG. 1, it is sufficient in the context of the present invention if the heat-conducting sheets 31 or the heat-transfer sheets 25 33 are attached to only one pipe ,
    A heat carrier such as flue gas flows in the pipe section 12 both between the inner wall of the pipe section 12 and the outer wall of the first tube 14 along and through the second tube 16. A heat-absorbing medium such as heating water s 30 heating system passes through the inlet 20 in the Interior of the pipe section 12 and is guided by the annular space 18 helically to the outlet 22. Here, the heat-absorbing medium absorbs the heat of the heat carrier, while the heat carrier cools. 35, a second embodiment of a heat exchanger 110 is shown, which differs from the embodiment shown in Figure 1 in that in the annulus 118 between the first tube 114 and the second tube 116, another type of 7/25
    Deflector chisels 128 is installed. The deflection baffles 128 consist of plate-shaped guide elements aligned parallel to the longitudinal axis of the first and second tubes 114, 116, of which two guide elements 138 a, 138 b are shown by way of example in FIG. 2. The guide elements 138a, 138b may be metal plates such as a sheet or plastic plates.
    The inlet 120 into the annular space 118 is arranged at the same, in particular upper end portion of the first tube 114 as the outlet 122. The inlet 120 and the outlet 122 point in opposite directions.
    Figure 3 shows the embodiment shown in Figure 2 in a perspective view, in which case a plurality of guide elements 138a, 138b, 138c, 138d, 138e is provided.
    In the annular chamber 118, the guide elements 138a and 138b on the end face 140 of the first and second tube 114,116, where the inlet 120 is provided, and attached to the first tube 114 and the second tube 116. The guide elements 138a and 138b together with the first and second tubes 114 and 116 form a first filling space 142 and have a shorter length than the first and second tubes 114,116. This creates a first inner outlet opening 144, which communicates with a further filling space 146.
    The second filling space 146 is formed by the first tube 114, the second tube 116, the guide elements 138a, 138b and the guide element 138c and a guide element, not shown, arranged on the opposite side. The guide element 138c as well as its associated, not dargesteilte guide element on the opposite side are attached to the end face 148 of the first and second tube 114,116, which is remote from the inlet 120. A second inner outlet opening 150, which communicates with a third filling space 152, is provided on the end face 140 at which the inlet 120 is located. i
    The third filling space 152 is formed by the guide element 138c and the guide element (not shown) on the opposite side, two further guide elements 138d and 138e and the first and second tube 114,116. The guide elements 138e and 138d are fastened analogously to the guide elements 138a and 138b on the end face 140 of the first and second tube 114,116, where the inlet 120 is located. A third inner outlet opening 154, which communicates with a fourth filling space 154, is provided, like the first inner outlet opening 144, in the region of the front side 148 of the first and second tubes 114, 116, which is remote from the inlet 120. 8/25 8
    The fourth fill space 156 is formed between the guide members 138 d and 138 e and the first pipe 114 and the second pipe 116, the drain 122 communicating with the fourth fill space 156.
    The heat-absorbing medium is guided through the inlet 120 into the first filling space 142 and passes through the first inner drain opening 144 into the second filling space 146. From the second filling space 146, which communicates with the third filling space 150 via the second inner drain opening 150, becomes heat-absorbing medium again passed in the opposite direction through the annulus 118 and passes through a third inner drain opening 154 in the fourth filling space 156 and finally passes through the outlet 122 to the outside. In this way, the heat-absorbing medium is guided in the longitudinal direction of the annular space 118 four times along the first and second tubes 114, 116 so that the heat-absorbing medium has a long residence time in the annular space 118.
    In the embodiment shown in FIG. 3, four filling spaces are provided. In the context of the invention, however, more or less filling spaces can be provided.
    In one embodiment, not shown, a separating element may be provided in the region of the inlet instead of a guide element, so that the heat-absorbing medium can flow either only counterclockwise or only in a clockwise direction. The guide members are circumferentially alternately fixed to the opposing end surfaces so that the heat-absorbing medium in the annulus along the circumference of the first and second tube along the first and second tube is guided back and forth. To make full use of the available annular space, the outlet is expediently arranged in the region of the separating element.
    FIG. 4 shows a third embodiment of a heat exchanger 210.
    In the tube section 212, a second tube 216 is concentrically arranged in a first tube 214. In the first tube 214, an inlet 220 and a drain 222 are provided. The inlet 220 is formed as a pipe section and is guided via an opening 224 in the shell of the pipe sections 212 to the outside.
    In the pipe section 212, a third pipe 260 and a fourth pipe 262 are provided. The third tube 260 and the fourth tube 262 are concentrically arranged with the first and second 9/25 9 •··············································································. ············································································································································································ The two tubes 260 and 262 form an annular space 268 between them.
    The third tube 260 is open at its two end faces, while the fourth tube 262 at 5 its end faces in the region of the annular space 268 is closed.
    The third tube 260 has an inlet 264. The outlet 222 of the first tube 214 and the inlet 264 to the third tube are interconnected by means of a connecting web 266, so that the annular space 268 10 formed by the third tube 260 and the fourth tube 262 is connected to the annular space 218 between the first tube 214 and the second tube Tube 216 communicates. In the fourth tube 262, as can be better seen in Figure 5, a drain 270 is provided, which is formed as a pipe section and is guided through an opening 272 of the shell of the pipe section 212 to the outside. Both in the annular space 218 between the first and second tubes 214, 216 and the annular space 268 between the third and fourth tubes 260, 262 helical deflection baffles 274 are provided.
    As can be seen in FIG. 5, the heat-absorbing medium flows through the inlet 220 in FIG. 20 into the annular space 218 and is guided helically through the first and second tubes 214, 216 to the outlet 222 of the second tube 216. Via the connecting web 266, the heat-absorbing medium passes into the annular space 268 of the third and fourth tubes 260, 262.
    From there, the heat-absorbing medium is guided helically through the annular space 268 to the outlet 270 in the fourth tube 262. 25
    A heat transfer medium such as flue gas flows between the inner wall of the pipe section 212 and the outer wall of the fourth pipe 262, between the inner wall of the third pipe 260 and the outer wall of the first pipe 214, and finally through the second pipe 216 through the pipe section 212 heat-absorbing medium flows through the two annular spaces 218 and 268, the heat transfer medium flows along the annular spaces 218 and 268 and heats the heat-absorbing medium while the heat transfer medium is cooled. FIG. 6 shows a fourth embodiment of a heat exchanger 310. The heat exchanger 310 comprises two annular spaces 318 and 368, which are each formed by a first and second tube 314, 316 and a third and fourth tube 360, 362. 10/25 10 * • ·· .. * · • · · · · · · · · · · · · · t
    In the annular spaces 318 and 368 deflection baffles in the form of guide elements 338 are provided. For reasons of clarity, the representation of the guide elements in the annular space 318 has been omitted in FIG. The construction and operation of the guide elements 338, of which a guide element 338 is shown as an example in FIG. 7 for the annular space 368, correspond to the structure and mode of operation of the guide elements, as described in connection with FIG.
    Thus, a heat-absorbing medium is passed through a feed line 320 into the annular space 318 to the outlet 322 of the first tube 314. The heat-receiving medium passes via the connecting web 366 in the annular space 368. In the third and fourth tube 360, 362, a guide member 338 divides the annular space 368 into a first and second filling space 380 and 382, so that the heat-absorbing medium in the longitudinal direction of the third and fourth Tube 360, 362 is reciprocated until it reaches the outlet 370 and is led out of the pipe section 312.
    In the first and second annulus may be provided a plurality of guide elements which divide the first and second annulus in a plurality of filling spaces.
    Although not shown, in connection with the annular spaces 218, 268; 318, 368 of the first and second tubes 214, 216; 314, 316 and the third and fourth tubes 260, 262; 360, 362 any combination of Umienk chicanes conceivable. Thus, for example, a helical deflection baffle can be provided in an annular space and a deflection baffle with plate-shaped guide elements aligned parallel to the longitudinal axis can be provided in the other annular space. In the context of the invention, it is also possible to omit a deflection baffle in one of the two annular spaces.
    If only heat exchangers 210, 310 have been illustrated which comprise two annular spaces, the number of annular spaces can also be extended to three annular spaces or more annular spaces by additionally providing pairs of concentric tubes. In the additional annular spaces Umienk chicanes of various types may be provided.
    The heat-conducting sheets 31 or heat-transfer sheets 33 shown in connection with FIG. 1 can be used in all embodiments lying within the scope of the invention.
    In one embodiment, not shown, the outermost tube, which forms an annular space with an inner tube, be formed integrally with the pipe section. 11/25 5 11
    To reduce the flow resistance, at least the end faces of a concentric pair of tubes, which point in the flow direction of the heat carrier, be formed chamfered.
    The heat exchanger is used, for example, in heating systems in which the heat transfer medium is flue gas, or in car exhaust systems of internal combustion engines, in which the heat transfer medium is exhaust gas. 10 The heat exchanger can be formed together with an outer tube as a module that can be used directly in a section of a pipe, whereby the installation of the heat exchanger is very easy. 12/25
    权利要求:
    Claims (1)
    [1]
    12. Claims 1. A heat exchanger comprising a pipe section (12; 112; 212; 312) through which a heat transfer medium flows, a first and a second pipe (14,16; 114,116; 214,216; 314,316) which are arranged concentrically and between them an annular space (18; 118; 218; 318) for guiding the heat-absorbing medium, a first inlet (20; 120; 220; 320) and a first outlet (22; 122,222; 322) in the first tube (14; 114; 214; 314) for the heat-receiving medium, wherein the first inlet (20; 120; 220; 320) and the first outlet (22; 122,222; 322) communicate with the annulus (18; 118; 218; 318) so that the Annular space (18, 118, 218, 318) and the first drain (22, 122, 222, 322) form a closed conduit system for the heat-absorbing medium, and deflecting baffles (28, 128) located in the annular space (18, 118, 218 318) are provided, characterized in that the first tube (14; 114; 214; 314) on its front side only in the region of the annular space (18; 11 8; 218; 318) is closed and the first and second tubes (14, 16; 114,116; 214, 216; 314, 316), the first inlet (20; 120; 220; 320) and the first outlet (22; 122; 222; 322) are designed as inserts in the pipe section (12; 112; 212; 312) through which the heat transfer medium flows , 2. Heat exchanger according to claim 1, characterized in that the deflection baffles (28; 128) are designed, the heat-absorbing medium helically through the annular space (18; 118; 218; 318) or repeatedly in the longitudinal direction through the annular space (18; 118; 218 318). 3. Heat exchanger according to claim 2, characterized in that the deflection baffles (28) as guide elements (30; 274) are formed, which in the axial direction of the first and second tubes (14,16; 214, 216) helically in the annular space (18; 218) are guided. 4. Heat exchanger according to claim 2, characterized in that the deflection baffles (128) comprise a first and a second plate-shaped, aligned parallel to the tube axis guide member (138 a, 138 b), each at the first and second tube (114,116) and at least one End surface (140) of the annular space (118) is fastened, so that a first filling space (142) is formed between the first and second tubes (114, 116), the first inlet (120) in the first tube (114) being connected to the first 13 / 25 ^ ············································································································································································································································· wherein at the first and / or second guide element (138a, 138b), a first inner drain opening (144) is provided. 5. Heat exchanger according to claim 4, characterized in that the first and / or the second guide element (138a, 138b) are shorter than the first and second tubes (114,116), so that the first inner drain opening (144) as a gap between the end face 6. A heat exchanger according to claim 4 or 5, characterized in that a third guide element (138c) is provided on the first and second guide elements (138c) of the annular space (118) and the first and second guide elements (138a, 138b) second tube (114, 116) and at least one end face (148) of the annulus (118) to form a second fill space (146), the first and second fill spaces 142, 146 communicating with each other via the first inner drain opening (144) and 15 wherein the second fill space (146) has a second inner drain opening (150). 7. Heat exchanger according to one of claims 4 to 6, characterized in that a plurality of filling spaces (142,146,152,156) are provided which communicate with each other. 8. Heat exchanger according to one of claims 4 to 7, characterized in that in the flow direction of the heat-absorbing medium successive inner drain openings (144,150,154) are alternately provided on the two end faces (140,148) of the annular space. 9. Heat exchanger according to one of the preceding claims, characterized in that the heat exchanger further comprises a third and fourth tube (260, 262, 360, 362) which are concentrically arranged and form a second annular space (268, 368), and a second inlet (264; 364) on the third tube (260; 360) and a second drain (270; 370) on the fourth tube (262; 362), wherein the first and second tubes (214,216; 314,316) are concentric with each other third and fourth tubes (260, 262; 360, 362) are arranged and the first annulus (218; 318) communicates with the second annulus (268; 368). 35 10. The heat exchanger according to claim 9, characterized in that in the second annular space (268; 368) deflection baffles are provided. 11. Heat exchanger according to claim 10, characterized in that the deflecting baffles (274) are designed as guide elements, which in the axial direction of the third and fourth tube (260, 262; 360,362) helically in the second annular space (268; 368) out are, or at least a pair of plate-shaped, aligned parallel to the tube axis guide member (338), which are respectively attached to an end face of the second annular space (368) and to the third and fourth tube (260, 262; 360, 362), so in that a filling space (380) is formed in the second annular space (368) between the third and fourth tubes (360, 362), wherein the second inlet (364) in the third tube (360) communicates with the filling space (382) and wherein a inner 10 drain opening is provided. 12. Heat exchanger according to one of the preceding claims, characterized in that at least the flow of the heat transfer medium facing the end face of the first and / or the second annular space (18, 118, 218, 268, 318, 368) is chamfered. 13. Heat exchanger according to one of the preceding claims, characterized in that at least one heat conducting plate (31) and / or a heat transfer plate (33) is provided. 20
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    同族专利:
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    引用文献:
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    法律状态:
    2021-04-15| MM01| Lapse because of not paying annual fees|Effective date: 20200829 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102011112604|2011-09-06|
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