CN216132322U - Serial-type low temperature high pressure liquid hydrogen heat exchanger - Google Patents
Serial-type low temperature high pressure liquid hydrogen heat exchanger Download PDFInfo
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- CN216132322U CN216132322U CN202122652131.6U CN202122652131U CN216132322U CN 216132322 U CN216132322 U CN 216132322U CN 202122652131 U CN202122652131 U CN 202122652131U CN 216132322 U CN216132322 U CN 216132322U
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Abstract
The utility model provides a serial low-temperature high-pressure liquid hydrogen heat exchanger, which comprises: a heat exchanger body; the movable supporting plate is arranged in the heat exchanger body, a plurality of mounting holes are formed in the movable supporting plate, the mounting holes are circumferentially arranged in the center of the movable supporting plate, and the distance between any adjacent mounting holes is fixed; and one end of the heat exchange tube is arranged on the tube plate of the heat exchanger body, the other end of the heat exchange tube is connected in the mounting hole in a sliding manner, and the heat exchange tubes are connected in series through elbows. Therefore, when the heat exchange tube penetrates through the sliding connection on the mounting hole, the heat exchange tube can be guaranteed to form a ring-shaped stacked structure on one hand, so that the size of equipment is reduced, the requirement of expansion with heat and contraction with cold of the heat exchange tube can be guaranteed on the other hand, the heat exchange tube is enabled to have certain degree of freedom, and the influence caused by stress is avoided.
Description
Technical Field
The utility model relates to the technical field of heat exchangers, in particular to a series low-temperature high-pressure liquid hydrogen heat exchanger.
Background
The low-temperature high-pressure heat exchanger is mainly used on novel energy hydrogen, high-pressure gas hydrogen, 72MPa working pressure and 90MPa liquid hydrogen used by an aerospace system are used by a current hydrogen energy automobile and a ship, and the traditional heat exchanger is difficult to meet the ultrahigh pressure and low-temperature application working conditions.
The conventional heat exchanger has the following defects relative to various working conditions:
1. under the low-temperature working condition, the temperature of liquid hydrogen 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.
2. The ultrahigh pressure can adapt to a conventional heat exchanger with ultrahigh pressure, a double-pipe heat exchanger is frequently used, the heat exchanger is not suitable for a low-temperature working condition, the occupied area is large, and the heat exchanger is not beneficial to the use of a hydrogen energy working condition.
3. 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.
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 series-type low-temperature high-pressure liquid hydrogen heat exchanger.
The utility model provides a serial low-temperature high-pressure liquid hydrogen heat exchanger, which comprises: a heat exchanger body; the movable supporting plate is arranged in the heat exchanger body, a plurality of mounting holes are formed in the movable supporting plate, the mounting holes are circumferentially arranged in the center of the movable supporting plate, and the distance between any adjacent mounting holes is fixed; and one end of the heat exchange tube is arranged on the tube plate of the heat exchanger body, the other end of the heat exchange tube is connected in the mounting hole in a sliding manner, and the heat exchange tubes are connected in series through elbows.
The utility model provides a serial low-temperature high-pressure liquid hydrogen heat exchanger which comprises a heat exchanger body, a supporting movable plate and a heat exchange tube. Wherein, be formed with a plurality of mounting holes on supporting the fly leaf, and a plurality of mounting holes arrange with the central circumference of supporting the fly leaf, consequently, when sliding connection was worn on the mounting hole at the heat exchange tube, can guarantee on the one hand that the heat exchange tube is tubular to become the structure that the ring was piled up to reduce the volume of equipment, on the other hand can guarantee the requirement of heat exchange tube expend with heat and contract with cold, makes it have certain degree of freedom, thereby avoids the influence that stress brought. In addition, the distance between any adjacent mounting holes is fixed, and the fixed distance is set according to actual working conditions.
The series low-temperature high-pressure liquid hydrogen 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 supporting movable plate is of an arch structure and forms a gap.
In the technical scheme, the arch structure enables the support movable plate to have the same structure as the baffle plate in the heat exchanger body, so that the support movable plate can be used as the baffle plate.
In the above technical solution, the support movable plate includes: the connecting plate is connected with the heat exchanger body; the mounting panel, with connecting plate swing joint, just the mounting hole forms on the mounting panel.
In this technical scheme, the connecting plate is used for guaranteeing to support the connection of fly leaf and heat exchanger body inside. In particular, the connection plate may be welded inside the heat exchanger body. The mounting plate is used for mounting the heat exchange tube and ensuring the sliding of the heat exchange tube, so that the heat exchange tube has certain degree of freedom.
In the technical scheme, the elbow is a 180-degree elbow.
In the technical scheme, the end parts of the heat exchange tubes are connected in series through the elbows, so that the heat exchange tubes form a set of complete pipelines. Specifically, the elbow adopts a 180-degree elbow.
In the technical scheme, a tube pass outlet and a tube pass inlet are formed in one side of the heat exchanger body of the heat exchange tube.
In the technical scheme, the tube side outlet is used for outflow of the medium, and the tube side inlet is used for inflow of the medium. The low-temperature medium passes through the tube pass, and the heat medium passes through the shell pass, so that the expansion and contraction stress of the low-temperature medium can be effectively solved, and the heat exchange efficiency of the equipment is improved.
In the above technical scheme, the heat exchange tube comprises a base tube made of stainless steel and aluminum alloy fins arranged on the base tube.
In this technical scheme, stainless steel's parent tube can bear higher pressure, and aluminum alloy's fin 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 scheme, the fins are arranged on the base pipe in a spiral structure.
In the technical scheme, the spiral structure can improve the contact area with a shell pass medium, so that the heat exchange efficiency and the heat exchange quality are improved.
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 tandem low temperature high pressure liquid hydrogen heat exchanger according to one embodiment of the present invention;
FIG. 2 is a structural diagram of a mounting plate in a tandem low temperature high pressure liquid hydrogen heat exchanger according to an embodiment of the utility model;
fig. 3 is a structural diagram (hiding the heat exchanger body) of a movable support plate, a heat pipe and an elbow in the tandem type low-temperature high-pressure liquid hydrogen heat exchanger according to an embodiment of the utility model;
fig. 4 is a side view of fig. 3.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 4 is:
the heat exchanger comprises a heat exchanger body 1, a support movable plate 2, a mounting hole 21, a connecting plate 22, a mounting plate 23, a heat exchange tube 3, a bend 4, a tube pass outlet 5 and a tube pass inlet 6.
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 tandem low-temperature high-pressure liquid hydrogen heat exchanger provided according to some embodiments of the present invention is described below with reference to fig. 1 to 4.
Some embodiments of the present application provide a series low temperature high pressure liquid hydrogen heat exchanger.
As shown in fig. 1 to 4, a first embodiment of the present invention provides a serial low-temperature high-pressure liquid hydrogen heat exchanger, including: 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 plurality of mounting holes 21 are circumferentially arranged in the center of the movable supporting plate 2, and the distance between any adjacent mounting holes 21 is fixed; one end of the heat exchange tube 3 is arranged on the tube plate of the heat exchanger body 1, the other end of the heat exchange tube 3 is connected in the mounting hole 21 in a sliding mode, and the heat exchange tubes 3 are connected in series through the elbows 4.
The utility model provides a serial low-temperature high-pressure liquid hydrogen heat exchanger which comprises a heat exchanger body 1, a supporting movable plate 2 and a heat exchange tube 3. Wherein, be formed with a plurality of mounting holes 21 on supporting fly leaf 2, and a plurality of mounting holes 21 are arranged with the central circumference of supporting fly leaf 2, consequently, when sliding connection is worn on mounting hole 21 to heat exchange tube 3, can guarantee on the one hand that heat exchange tube 3 forms the structure that the ring was piled up to reduce the volume of equipment, on the other hand can guarantee the requirement of heat exchange tube 3 expend with heat and contract with cold, make it have certain degree of freedom, thereby avoid the influence that stress brought. In addition, the distance between any adjacent mounting holes 21 is fixed, and the fixed distance is set according to actual working conditions.
The second embodiment of the utility model provides a serial low-temperature high-pressure liquid hydrogen heat exchanger, and on the basis of the first embodiment, the movable supporting plate 2 is in an arch structure and forms a gap.
In the present embodiment, the arch structure enables the supporting movable plate 2 to have the same structure as the baffle plate inside the heat exchanger body 1, so that the supporting movable plate 2 is used as the baffle plate.
The third embodiment of the present invention provides a serial low-temperature high-pressure liquid hydrogen heat exchanger, and on the basis of any of the above embodiments, the movable supporting plate 2 includes: the connecting plate 22 is connected with the heat exchanger body 1; and a mounting plate 23 movably connected to the connection plate 22, and the mounting hole 21 is formed on the mounting plate 23.
In the present embodiment, the connecting plate 22 is used to ensure the connection of the supporting movable plate 2 with the inside of the heat exchanger body 1. In particular, the connection plate 22 may be welded inside the heat exchanger body 1. The mounting plate 23 is used for mounting the heat exchange tube 3 and ensuring the sliding of the heat exchange tube 3 with a certain degree of freedom.
The fourth embodiment of the utility model provides a series-connection type low-temperature high-pressure liquid hydrogen heat exchanger, and on the basis of any one of the embodiments, the elbow 4 is a 180-degree elbow.
In this embodiment, the heat exchange tubes 3 are connected in series at the ends by bends 4, thereby ensuring that the heat exchange tubes 3 form a complete set of tubes. Specifically, the elbow 4 is a 180 ° elbow.
The fifth embodiment of the utility model provides a series-connection type low-temperature high-pressure liquid hydrogen heat exchanger, and on the basis of any embodiment, the heat exchange tube 3 is provided with a tube side outlet 5 and a tube side inlet 6 at one side of the heat exchanger body 1.
In the present exemplary embodiment, the tube-side outlet 5 is used for the outflow of the medium and the tube-side inlet 6 is used for the inflow of the medium. The low-temperature medium passes through the tube pass, and the heat medium passes through the shell pass, so that the expansion and contraction stress of the low-temperature medium can be effectively solved, and the heat exchange efficiency of the equipment is improved.
The sixth embodiment of the utility model provides a serial low-temperature high-pressure liquid hydrogen heat exchanger, and on the basis of any one of the embodiments, the heat exchange tube 3 comprises a base tube made of stainless steel and aluminum alloy fins arranged on the base tube.
In this embodiment, stainless steel's parent tube can bear higher pressure, and aluminum alloy's fin coefficient of heat conductivity is higher, can effectively improve heat exchange efficiency, can also increase heat transfer area, and 3 surface area ratios of same-diameter polished rod heat exchange tube are 10 on the same scale: 1, reduce equipment weight simultaneously, 3 weight ratios of same heat transfer area polished rod heat exchange tube on year-on-year basis are 6: 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.
A seventh embodiment of the present invention provides a serial low-temperature high-pressure liquid-hydrogen heat exchanger, and on the basis of any of the above embodiments, the fins are arranged on the base pipe in a spiral structure.
In this embodiment, helical structure can improve the area of contact with the shell side medium to improve heat exchange efficiency and heat transfer quality.
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 (7)
1. A serial low-temperature high-pressure liquid hydrogen heat exchanger is characterized by comprising:
a heat exchanger body (1);
the supporting movable plate (2) is arranged in the heat exchanger body (1), a plurality of mounting holes (21) are formed in the supporting movable plate (2), the mounting holes (21) are circumferentially arranged at the center of the supporting movable plate (2), and the distance between any adjacent mounting holes (21) is fixed;
and one end of the heat exchange tube (3) is arranged on the tube plate of the heat exchanger body (1), the other end of the heat exchange tube is connected in the mounting hole (21) in a sliding manner, and the heat exchange tubes (3) are connected in series with each other through the elbow (4).
2. The series low-temperature high-pressure liquid-hydrogen heat exchanger according to claim 1, wherein the movable supporting plate (2) is of an arch structure and is notched.
3. The tandem low-temperature high-pressure liquid-hydrogen heat exchanger according to claim 2, wherein the movable support plate (2) comprises:
a connecting plate (22) connected to the heat exchanger body (1);
a mounting plate (23) movably connected with the connecting plate (22), and the mounting hole (21) is formed on the mounting plate (23).
4. The series low-temperature high-pressure liquid hydrogen heat exchanger according to claim 3,
the elbow (4) is an elbow of 180 degrees.
5. The series low-temperature high-pressure liquid-hydrogen heat exchanger according to any one of claims 1 to 4, wherein the heat exchange tube (3) is formed with a tube side outlet (5) and a tube side inlet (6) at one side of the heat exchanger body (1).
6. The tandem type low-temperature high-pressure liquid-hydrogen heat exchanger according to any one of claims 1 to 4, wherein the heat exchange tube (3) comprises a base tube made of stainless steel and aluminum alloy fins arranged on the base tube.
7. The series low-temperature high-pressure liquid hydrogen heat exchanger according to claim 6,
the fins are arranged on the base pipe in a spiral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122652131.6U CN216132322U (en) | 2021-11-01 | 2021-11-01 | Serial-type low temperature high pressure liquid hydrogen heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122652131.6U CN216132322U (en) | 2021-11-01 | 2021-11-01 | Serial-type low temperature high pressure liquid hydrogen heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216132322U true CN216132322U (en) | 2022-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122652131.6U Active CN216132322U (en) | 2021-11-01 | 2021-11-01 | Serial-type low temperature high pressure liquid hydrogen heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216132322U (en) |
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2021
- 2021-11-01 CN CN202122652131.6U patent/CN216132322U/en active Active
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