CN216205514U - Compact liquid hydrogen low-temperature composite finned tube heat exchanger - Google Patents
Compact liquid hydrogen low-temperature composite finned tube heat exchanger Download PDFInfo
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- CN216205514U CN216205514U CN202122649740.6U CN202122649740U CN216205514U CN 216205514 U CN216205514 U CN 216205514U CN 202122649740 U CN202122649740 U CN 202122649740U CN 216205514 U CN216205514 U CN 216205514U
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Abstract
The utility model provides a compact liquid hydrogen low-temperature composite finned tube heat exchanger, which comprises: a heat exchanger body; the supporting movable plate is arranged in the heat exchanger body, and a plurality of mounting holes are formed in the supporting movable plate; the sliding fixing piece is arranged on the supported movable plate and corresponds to the mounting hole in position; and one end of the composite finned tube is arranged on the tube plate of the heat exchanger body, and the other end of the composite finned tube is arranged in the mounting hole and the sliding fixing piece, is in clearance fit with the mounting hole and is in sliding friction with the sliding fixing piece. Therefore, under the low-temperature working condition, after the composite finned tube expands with heat and contracts with cold, the stress is eliminated through the axial movement of the other end, and the conditions of breakage and the like are avoided.
Description
Technical Field
The utility model relates to the technical field of heat exchangers, in particular to a compact liquid hydrogen low-temperature composite finned tube heat exchanger.
Background
The compact low-temperature heat exchanger mainly utilizes equipment on vehicles and ship transport tools, has compact and small structure, and is difficult to meet the application conditions of LNG and hydrogen energy sources at low temperature by the traditional heat exchanger.
The conventional heat exchanger has the defects relative to various working conditions:
1. under the low-temperature working condition, the temperature of liquid hydrogen and LNG is as low as 20K, the cold contraction stress is extremely high, and the traditional shell-and-tube heat exchanger and other heat exchangers are difficult to meet the related stress requirements, so that the conditions of heat exchange tube breakage and the like are easily caused.
2. The hydrogen working condition heat exchange temperature range is 20K-293K, the range span is large, the requirement on heat exchange capacity is high, the requirement on heat exchange area is large, and the volume of the conventional heat exchanger equipment is large.
3. The traditional heat exchanger is large in size, basically fixed on a fixed basis and incapable of being moved for use.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art.
Therefore, the utility model provides a compact liquid hydrogen low-temperature composite finned tube heat exchanger.
The utility model provides a compact liquid hydrogen low-temperature composite finned tube heat exchanger, which comprises: a heat exchanger body; the supporting movable plate is arranged in the heat exchanger body, and a plurality of mounting holes are formed in the supporting movable plate; the sliding fixing piece is arranged on the supported movable plate and corresponds to the mounting hole in position; and one end of the composite finned tube is arranged on the tube plate of the heat exchanger body, and the other end of the composite finned tube is arranged in the mounting hole and the sliding fixing piece, is in clearance fit with the mounting hole and is in sliding friction with the sliding fixing piece.
The utility model provides a compact liquid hydrogen low-temperature composite finned tube heat exchanger, wherein a support movable plate is used for providing axial movement installation for the other end of a composite finned tube. Specifically, the fixed setting of one end of compound finned tube is on the tube sheet of heat exchanger, the other end and mounting hole clearance fit and with sliding fixed spare sliding friction, consequently under the low temperature operating mode, after compound finned tube takes place expend with heat and contract with cold, comes the elimination stress through the axial motion of the other end to avoid the emergence of the condition such as fracture.
The compact liquid hydrogen low-temperature composite finned tube heat exchanger according to the technical scheme of the utility model can also have the following additional technical characteristics:
in the above technical solution, the composite finned tube includes: the base pipe is made of stainless steel; the joint pipe is sleeved on the base pipe and is made of aluminum alloy; the fin is arranged on the laminating pipe in a spiral structure and integrally formed with the laminating pipe, wherein the fin is made of an aluminum alloy material.
In this technical scheme, the parent tube adopts stainless steel, can effectively realize that low temperature, pressure are higher and the special requirement medium uses, and laminating pipe and fin adopt aluminum alloy, and aluminum alloy coefficient of heat conductivity is higher, can effectively improve heat exchange efficiency, can also increase heat transfer area, and same-ratio same diameter polished rod heat exchange tube surface area ratio is 10: 1, reduce equipment weight simultaneously, same heat transfer area polished rod heat exchange tube weight ratio is 6 on year-on-year basis: 1, thereby effectively solving the thermal expansion and cold contraction stress of the low-temperature medium, providing the heat exchange efficiency of the equipment and simultaneously reducing the appearance volume of the equipment.
In the above technical solution, the supporting movable plate is disposed at a side of the heat exchanger body away from the tube plate, wherein the supporting movable plate is in an arch structure and has a notch formed thereon.
In the technical scheme, the supporting movable plate adopts an arch structure and forms a notch, so that the composite finned tube is convenient to support on one hand, and the composite finned tube can be used as a baffle plate on the other hand.
In the above technical solution, the slide fastener includes: a ring member with which the composite finned tube is slidingly rubbed; and the mounting part is used for detachably connecting the annular part to the supporting movable plate.
In the technical scheme, the ring-shaped piece and the compound finned tube are in sliding friction, preferably, the ring-shaped piece is made of PPTE materials and is in a ring-shaped structure, so that the ring-shaped piece can resist low temperature on one hand, and can avoid damage to the compound finned tube on the other hand. The mounting member is used for mounting the ring member on the group support movable plate. Preferably, the mounting may be a screw.
In the technical scheme, the ends of the composite finned tubes are communicated with each other through bent tubes.
In the technical scheme, the ends of the composite finned tubes are communicated with each other through bent tubes. Specifically, the composite finned tubes are connected by U-shaped elbows to form two boxes of tube passes, and the U-shaped elbows are formed by cold bending dies for filling materials inside the pipelines.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a front view of a compact liquid hydrogen low temperature composite finned tube heat exchanger according to one embodiment of the utility model;
FIG. 2 is a block diagram of a composite finned tube in the compact liquid hydrogen low temperature composite finned tube heat exchanger of FIG. 1;
FIG. 3 is a block diagram of a support movable plate in the compact liquid hydrogen low temperature composite finned tube heat exchanger shown in FIG. 1;
FIG. 4 is a front view (with the heat exchanger body hidden) of the compact liquid hydrogen low temperature compound finned tube heat exchanger of one embodiment of the utility model;
FIG. 5 is a connection structure diagram of a base pipe, a ring part and a mounting part in the compact liquid hydrogen low-temperature compound finned tube heat exchanger shown in FIG. 4;
wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5 is:
the heat exchanger comprises a heat exchanger body 1, a support movable plate 2, a mounting hole 21, a sliding fixing part 3, a ring-shaped part 31, a mounting part 32, a composite finned tube 4, a base tube 41, a fitting tube 42, a fin 43 and a bent tube 5.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
A compact liquid hydrogen low temperature composite finned tube heat exchanger provided according to some embodiments of the present invention is described below with reference to fig. 1 to 5.
Some embodiments of the present application provide a compact liquid hydrogen low temperature composite finned tube heat exchanger.
As shown in fig. 1 to 5, a first embodiment of the present invention proposes a compact liquid hydrogen low temperature composite finned tube heat exchanger comprising: a heat exchanger body 1; the movable supporting plate 2 is arranged in the heat exchanger body 1, wherein a plurality of mounting holes 21 are formed in the movable supporting plate 2; the sliding fixing piece 3 is arranged on the supported movable plate 2 and corresponds to the mounting hole 21 in position; one end of the composite finned tube 4 is arranged on a tube plate of the heat exchanger body 1, and the other end of the composite finned tube is arranged in the mounting hole 21 and the sliding fixing piece 3, is in clearance fit with the mounting hole 21 and is in sliding friction with the sliding fixing piece 3.
The utility model provides a compact low-temperature composite finned tube 4 heat exchanger.A support movable plate 2 is used for providing axial movement installation for the other end of a composite finned tube 4. Specifically, the fixed setting of the one end of compound finned tube 4 is on the tube sheet of heat exchanger, and the other end and mounting hole 21 clearance fit and with the sliding fixing piece 3 sliding friction, consequently under the low temperature operating mode, after compound finned tube 4 takes place expend with heat and contract with cold, come the elimination stress through the axial motion of the other end to avoid the emergence of the condition such as fracture.
The second embodiment of the utility model provides a compact liquid hydrogen low-temperature compound finned tube heat exchanger, and on the basis of the first embodiment, the compound finned tube 4 comprises: the base pipe 41, the base pipe 41 adopts the stainless steel material; the attaching pipe 42 is sleeved on the base pipe 41 and is made of aluminum alloy; fin 43 is helical structure and sets up at laminating pipe 42, and with laminating pipe 42 integrated into one piece, wherein, fin 43 adopts the aluminum alloy material.
In this embodiment, basic pipe 41 adopts stainless steel, can effectively realize that low temperature, pressure are higher and the special requirement medium uses, and laminating pipe 42 and fin 43 adopt aluminum alloy, and aluminum alloy coefficient of heat conductivity is higher, can effectively improve heat exchange efficiency, can also increase heat transfer area, and same ratio same diameter polished rod heat exchange tube surface area ratio is 10: 1, reduce equipment weight simultaneously, same heat transfer area polished rod heat exchange tube weight ratio is 6 on year-on-year basis: 1, thereby effectively solving the thermal expansion and cold contraction stress of the low-temperature medium, providing the heat exchange efficiency of the equipment and simultaneously reducing the appearance volume of the equipment.
The third embodiment of the utility model provides a compact liquid hydrogen low-temperature composite finned tube heat exchanger, and on the basis of any one of the above embodiments, the supporting movable plate 2 is arranged on one side of the heat exchanger body 1 far away from the tube plate, wherein the supporting movable plate 2 is in an arch structure, and a notch is formed on the supporting movable plate.
In the embodiment, the movable supporting plate 2 has an arch structure and is notched, so that the finned composite tube 4 is conveniently supported on one hand, and the movable supporting plate can be used as a baffle plate on the other hand.
A fourth embodiment of the present invention provides a compact liquid hydrogen low-temperature composite finned tube heat exchanger, and on the basis of any of the above embodiments, the sliding fixing member 3 includes: a ring 31 with which the compound fin tube 4 is slidingly rubbed; and a mounting member 32 for detachably coupling the ring member 31 to the movable support plate 2.
In the embodiment, the ring piece 31 is in sliding friction with the compound finned tube 4, and preferably, the ring piece 31 is made of PPTE material, so that the ring piece can resist low temperature on one hand and can avoid damaging the compound finned tube 4 on the other hand. The mounting 32 is used to mount the ring 31 on the set-supporting mobile plate 2. Preferably, the mounting member 32 may be a screw.
The fifth embodiment of the utility model provides a compact liquid hydrogen low-temperature compound finned tube heat exchanger, and on the basis of any one of the embodiments, the ends of the compound finned tube 4 are communicated with each other through a bent tube 5.
In the present embodiment, the composite finned tubes 4 are communicated with each other at the ends by bent tubes 5. Specifically, the composite finned tubes 4 are connected by U-shaped elbows to form two boxes of tube passes, and the U-shaped elbows are formed by cold bending dies for filling materials inside the pipelines.
In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A compact liquid hydrogen low temperature composite finned tube heat exchanger is characterized by comprising:
a heat exchanger body (1);
the supporting movable plate (2) is arranged in the heat exchanger body (1), wherein a plurality of mounting holes (21) are formed in the supporting movable plate (2);
the sliding fixing piece (3) is arranged on the supported movable plate (2) and corresponds to the mounting hole (21) in position;
one end of the composite finned tube (4) is arranged on a tube plate of the heat exchanger body (1), and the other end of the composite finned tube is arranged in the mounting hole (21) and the sliding fixing piece (3), is in clearance fit with the mounting hole (21), and is in sliding friction with the sliding fixing piece (3).
2. Compact liquid hydrogen low temperature compound finned tube exchanger according to claim 1 characterized in that the compound finned tube (4) comprises:
the base pipe (41), the base pipe (41) adopts the stainless steel material;
the joint pipe (42) is sleeved on the base pipe (41) and is made of aluminum alloy;
fin (43), be helical structure setting at laminating pipe (42), and with laminating pipe (42) integrated into one piece, wherein, fin (43) adopt the aluminum alloy material.
3. The compact liquid hydrogen low temperature composite finned tube exchanger according to claim 2, characterized in that the supporting movable plate (2) is arranged on the side of the heat exchanger body (1) away from the tube plate, wherein the supporting movable plate (2) is in an arcuate structure and has a notch formed thereon.
4. Compact liquid hydrogen low temperature recombination finned tube exchanger according to claim 3 characterized in that the sliding fixture (3) comprises:
a ring-shaped member (31) with which the composite finned tube (4) is slidingly rubbed;
a mounting (32) for detachably connecting the ring member (31) to the movable support plate (2).
5. The compact liquid hydrogen low temperature composite finned tube exchanger according to claim 4,
the mounting member (32) is a screw.
6. The compact liquid hydrogen low temperature composite finned tube exchanger according to any one of claims 1 to 4,
the ends of the compound finned tubes (4) are communicated with each other through bent tubes (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122649740.6U CN216205514U (en) | 2021-11-01 | 2021-11-01 | Compact liquid hydrogen low-temperature composite finned tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122649740.6U CN216205514U (en) | 2021-11-01 | 2021-11-01 | Compact liquid hydrogen low-temperature composite finned tube heat exchanger |
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| CN216205514U true CN216205514U (en) | 2022-04-05 |
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| CN202122649740.6U Active CN216205514U (en) | 2021-11-01 | 2021-11-01 | Compact liquid hydrogen low-temperature composite finned tube heat exchanger |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811420A (en) * | 2022-04-06 | 2022-07-29 | 中国船舶重工集团公司第七二五研究所 | LNG vaporizer |
| KR102602929B1 (en) * | 2023-06-22 | 2023-11-17 | 주식회사 삼정이엔씨 | Heat exchanger system for liquefied hydrogen vaporization |
-
2021
- 2021-11-01 CN CN202122649740.6U patent/CN216205514U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811420A (en) * | 2022-04-06 | 2022-07-29 | 中国船舶重工集团公司第七二五研究所 | LNG vaporizer |
| KR102602929B1 (en) * | 2023-06-22 | 2023-11-17 | 주식회사 삼정이엔씨 | Heat exchanger system for liquefied hydrogen vaporization |
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