CN113073349A

CN113073349A - Heat dissipation device and hydrogen production system in cold region

Info

Publication number: CN113073349A
Application number: CN202110307930.1A
Authority: CN
Inventors: 赵为; 于德野; 陈静; 叶志烜
Original assignee: Sungrow Power Supply Co Ltd
Current assignee: Sunshine Hydrogen Energy Technology Co Ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2021-07-06

Abstract

The invention discloses a cold region heat dissipation device and a hydrogen production system, wherein the cold region heat dissipation device comprises a first heat-preserving cold-resistant box body, a second heat-preserving cold-resistant box body and a ventilation structure. An equipment area for placing a heating device is formed in the first heat-preservation cold-resistant box body; an alternating area for cooling a heat exchange pipeline of a heating device is formed in the second warm-keeping cold-resistant box body; the ventilation structure is provided with the outer wall of the second warm-keeping cold-resistant box body, and can communicate and isolate the alternating region with the outdoor. This application can get into the cold-proof cold-resistant box of second of outdoor cold air through the setting, adjusts the difference in temperature in alternating region and promotes medium and air heat transfer in the heat transfer pipeline, reaches the heat transfer effect with air heat transfer promptly, and then improves the radiating environmental protection economic nature in cold areas.

Description

Heat dissipation device and hydrogen production system in cold region

Technical Field

The invention relates to the technical field of device heat dissipation, in particular to a heat dissipation device in a cold region. The invention also relates to a hydrogen production system comprising the heat dissipation device in the cold region.

Background

Hydrogen energy has recently gained wide attention in domestic and international societies due to its high heat value, wide source, no pollution of combustion products, and other characteristics. In a hydrogen production system, hydrogen gas from an electrolytic cell is usually cooled by water cooling for heat exchange.

However, in a low-temperature and cold environment, the water cooling system is often at risk of being frozen, and an anti-freezing solution is required to be adopted for cooling circulation heat dissipation, so that the cost is high. However, the heat exchange efficiency of the antifreeze is lower than that of water cooling heat exchange, the antifreeze has a corrosive effect on a pipeline, and meanwhile, the discharge of the antifreeze causes pollution to the environment.

Therefore, how to improve the environmental protection and economy of heat dissipation in cold regions is a technical problem to be solved urgently by those skilled in the art.

Disclosure of Invention

The invention aims to provide a heat dissipation device in a cold area so as to improve the environmental protection and economy of heat dissipation in the cold area. It is another object of the present invention to provide a hydrogen production system that includes the cold district heat sink described above.

In order to achieve the above object, the present invention provides a heat dissipating device for a cold region, comprising:

the first warm-keeping cold-resistant box body is internally provided with an equipment area for placing a heating device;

the second warm-keeping cold-resistant box body is internally provided with an alternating region for cooling a heat exchange pipeline of a heating device;

the outer wall of the second warm-keeping cold-resistant box body is arranged, and the alternating region and the outdoor ventilation structure are communicated and isolated.

Preferably, the first warm-keeping cold-resistant box body and the second warm-keeping cold-resistant box body are the same box body, and the equipment area and the alternating area are isolated through a functional area separator.

Preferably, the ventilation structure is a plurality of ventilation structures, and the ventilation structure is arranged on the top wall and/or the vertical face and/or the bottom wall of the second warm-keeping cold-resistant box body.

Preferably:

the side wall of the second warm-keeping cold-resistant box body is arranged inwards concave to the side wall of the first warm-keeping cold-resistant box body;

or the side wall of the second warm-keeping cold-resistant box body is flush with the side wall of the first warm-keeping cold-resistant box body;

or the side wall of the second warm-keeping cold-resistant box body protrudes outwards from the side wall of the first warm-keeping cold-resistant box body.

Preferably, the alternating area is separated into an exchange area and a change area by a heat conducting member, the heat exchange pipeline of the hydrogen purification device is positioned in the exchange area, and the ventilation structure is positioned on the wall surface of the second heat-preservation cold-resistant box body corresponding to the change area.

Preferably, the change area and the equipment area are respectively located at two opposite sides of the exchange area.

Preferably, the heat conducting member is detachably connected with the second warm-keeping and cold-resistant box body and/or the first warm-keeping and cold-resistant box body.

Preferably, the exchange area is recessed in the first warm-keeping and cold-resistant box body, or the exchange area is located in the second warm-keeping and cold-resistant box body.

Preferably, the heat-conducting member separates the exchange area and the change area into two separate areas.

Preferably, the outer wall of the second warm-keeping and cold-resistant box body is provided with a vent, the vent structure comprises a driving device and a sealing plate capable of sealing the vent, and the driving device is used for driving the sealing plate to seal and open the vent.

Preferably, the ventilation opening and the closing plate are provided with anti-freezing heating elements at the joint position.

Preferably, the anti-freeze heating element is provided on the vent and/or the closure plate.

Preferably, the heating device further comprises a first controller connected with the anti-freezing heating element and the heating device, and when the heating device works, the first controller controls the anti-freezing heating element to heat.

Preferably, the top end or the bottom end or the side end of the sealing plate is hinged to the outer wall of the second heat-preservation cold-resistant box body through a hinge, and the driving device is used for driving the sealing plate to rotate around the hinge.

Preferably, when the vent is in the open position, the sealing plate is located on the outer side of the second warm-keeping cold-resistant box body and/or the inner side of the second warm-keeping cold-resistant box body.

Preferably, the driving device is a telescopic frame.

Preferably, the sealing plate is slidably arranged on the outer wall of the second warm-keeping and cold-resistant box body through a sliding rail, and the driving device is a translation driving assembly for pulling the sealing plate to reciprocate along the sliding rail.

Preferably, the ventilation structure is a louvered structure, and the closure plate is formed from a plurality of vanes.

Preferably, the ventilation system further comprises a first temperature sensor and a second controller used for controlling the opening and closing of the ventilation structure, the first temperature sensor is connected with the second controller, the first temperature sensor is used for sensing the temperature of the heat exchange pipeline in the alternating region, and when the second controller receives that the temperature value of the first temperature sensor exceeds a first preset value, the second controller controls the opening of the ventilation structure.

A hydrogen production system comprises a heat generating device and the heat dissipation device in the cold region.

Preferably, the heating device is a hydrogen production purification device, and the heat exchange pipeline is a purification system heat exchange pipeline and/or a hydrogen production system heat exchange pipeline.

In the technical scheme, the heat dissipation device for the cold region comprises a first heat-preserving cold-resistant box body, a second heat-preserving cold-resistant box body and a ventilation structure. An equipment area for placing a heating device is formed in the first heat-preservation cold-resistant box body; an alternating area for cooling a heat exchange pipeline of a heating device is formed in the second warm-keeping cold-resistant box body; the ventilation structure is provided with the outer wall of the second warm-keeping cold-resistant box body, and can communicate and isolate the alternating region with the outdoor. When the heat dissipation is not needed or the second warm-keeping cold-resistant box body is close to zero, the ventilation structure is closed.

According to the cold area heat dissipation device provided by the application, the second warm-keeping cold-resistant box body capable of entering outdoor cold air is arranged in the cold area heat dissipation device provided by the specific embodiment of the application, the temperature difference of the alternating region is adjusted to promote heat exchange between the medium in the heat exchange pipeline and the air, namely, the heat exchange effect is achieved through the heat exchange with the air, and the environment-friendly economy of heat dissipation in the cold area is further improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a top view of a first cold region heat dissipation device according to an embodiment of the present invention;

fig. 2 is a top view of a second cold region heat dissipation device according to an embodiment of the present invention;

FIG. 3 is a top view of a third cold region heat sink according to an embodiment of the present invention;

fig. 4 is a top view of a fourth cold region heat dissipation device according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a first ventilation structure according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a second ventilation structure provided in the embodiment of the present invention;

FIG. 7 is a schematic structural view of a third ventilation structure provided in the embodiment of the present invention;

FIG. 8 is a schematic structural view of a fourth ventilation structure provided in the embodiment of the present invention;

fig. 9 is a schematic structural diagram of a fifth ventilation structure according to an embodiment of the present invention.

Wherein in FIGS. 1-9: 1. a first warm-keeping cold-resistant box body; 2. a heat generating device; 3. a hydrogen production system heat exchange pipeline; 4. a purification system heat exchange conduit; 5. a controller; 6. a functional region separator;

7. a ventilation structure; 7-1, a driving device; 7-2, sealing plates; 7-3, an anti-freezing heating element;

8. a heat conductive member; 9. a second warm-keeping cold-resistant box body;

a1, equipment area; a2, alternating zone; a21, change region; a22, exchange area.

Detailed Description

The core of the invention is to provide a heat dissipation device in cold regions to improve the environmental protection and economy of heat dissipation in the cold regions. Another core of the invention is to provide a hydrogen production system comprising the heat sink for cold regions.

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and embodiments.

Please refer to fig. 1 to fig. 9.

In a specific implementation manner, the heat dissipation device for a cold region provided by the specific embodiment of the present invention includes a first warm-keeping and cold-resistant box 1, a second warm-keeping and cold-resistant box 9, and a ventilation structure 7. An equipment area A1 for placing the heating device 2 is formed in the first warming cold-resistant box body 1, namely the equipment area A1 is used for storing the heating device 2, and specifically, the heating device 2 can be a hydrogen production purification device.

An alternating area A2 for cooling the heat exchange pipeline of the heating device 2 is formed in the second warm-keeping cold-resistant box body 9; the ventilation structure 7 is arranged on the outer wall of the second warm-keeping cold-resistant box body 9, and can communicate and isolate the alternating region A2 with the outdoor environment. Specifically, the first warm-keeping cold-resistant box body 1 and the second warm-keeping cold-resistant box body 9 can be box body structures which are independently isolated from each other.

As shown in fig. 1 to 4, in order to facilitate the use of the heat dissipation device in the cold region, preferably, the first heat-preserving cold-resistant box 1 and the second heat-preserving cold-resistant box 9 are the same box, wherein the equipment area a1 and the alternating area a2 are separated by the functional area separator 6, at this time, the partition arrangement in the box is more flexible, and the box can be partitioned according to the environmental temperature of the project. The shape of the box body can be cuboid, cube, polygonal and the like, and is determined according to actual needs. The functional area separator 6 may be a separator with cold-proof and warm-keeping functions. In order to facilitate heat dissipation, the functional region separator 6 may be a separator having a heat conductive function. The functional area separator 6 separates the alternating area a2 and the equipment area a1 into two independent cavities, and specifically, the equipment area a1 may be a sealed cavity.

When the heat dissipation is not needed or the second warm-keeping cold-resistant box body 9 approaches zero degree, the ventilation structure 7 is closed. The medium in the heat exchange pipe exchanges heat with air in the alternating region A2 to finish the heat dissipation and cooling conditions of the medium. Specifically, the cold region heat dissipation device controls the temperature of the change region a21 by controlling the opening and closing of the ventilation structure 7 of the change region a21 in use, so as to promote heat exchange, thereby completing heat dissipation and cooling of the working medium.

It can be known through the above description that in the cold region heat abstractor that this application embodiment provided, through the cold-proof cold-resistant box 9 of second that will set up and can get into outdoor cold air, adjust the temperature in alternating zone A2 and promote heat exchange, adjust the difference in temperature in alternating zone A2 and equipment area A1 and promote heat exchange, reach the heat transfer effect with air heat exchange promptly, and then improve the radiating environmental protection economic nature in cold region, the wide popularization of being convenient for.

Specifically, the number of the ventilation structures 7 is multiple, and at least one of the top wall, the vertical surface and the bottom wall of the second warm-keeping cold-resistant box body 9 is provided with the ventilation structures 7. Specifically, in order to improve the heat dissipation efficiency, two opposite wall surfaces of the second warm-keeping and cold-resistant box body 9 are provided with the ventilation structures 7.

As shown in fig. 2 and 3, the side wall of the second warm-keeping and cold-resistant box 9 is recessed in the side wall of the first warm-keeping and cold-resistant box 1. Because the heating device 2 is not placed in the second warm-keeping cold-resistant box body 9, the second warm-keeping cold-resistant box body 9 can be reduced.

The bottom wall of the second warm-keeping cold-resistant box body 9 can also be provided with a ventilation structure 7, so that the air can enter and exit the alternating region A2 through the ventilation structure 7 on the bottom wall of the second warm-keeping cold-resistant box body 9.

As shown in fig. 1 and 4, in order to reduce the difficulty in processing the heat dissipation device in the cold region, it is preferable that the side wall of the second warm-keeping and cold-resistant box 9 is flush with the side wall of the first warm-keeping and cold-resistant box 1. Of course, the side wall of the second warm-keeping and cold-resistant box body 9 can be protruded out of the side wall of the first warm-keeping and cold-resistant box body 1.

In specific implementation, preferably, the top wall and the bottom wall of the second warm-keeping and cold-resistant box body 9 are respectively flush with the top wall and the bottom wall of the first warm-keeping and cold-resistant box body 1.

For the area with relatively low project site environmental temperature for a long time, the box body can be divided into an equipment area A1 and an alternating area A2, the heat exchange pipeline extends to the alternating area A2, and the alternating area A2 can adjust the temperature of the alternating area A2 by controlling the opening and closing of the ventilation openings, so that the heat exchange of the working medium in the heat exchange pipeline is completed.

In a specific embodiment, the alternating region a2 is separated into an exchange region a22 and a change region a21 by the heat conducting member 8, the heat exchange pipeline of the hydrogen production purification device is located in the exchange region a22, and the ventilation structure 7 is located on the wall surface of the second thermal cold-resistant box 9 corresponding to the change region a 21. Preferably, the heat-conducting member 8 separates the exchange area a22 and the change area a21 into two separate areas. In particular, the exchange area a22 may be a sealed cavity.

Specifically, the heat conducting member 8 can be bonded to the second warm-keeping cold-resistant box body 9, and preferably, the heat conducting member 8 and the second warm-keeping cold-resistant box body 9 are detachably connected.

The exchange area A22 is located between the equipment area A1 and the change area A21 in the three-partition box body, and is separated from the equipment area A1 and the change area A21 to form an independent space, and a gas separation and alkali liquor recovery pipeline of the hydrogen production system of the equipment area A1, a deoxygenator of the purification system and an outlet pipeline of a dryer extend from the equipment area A1 to enter the exchange area A22, and return to the equipment area A1 after heat exchange with air. The heat conducting piece 8 positioned between the exchange area A22 and the change area A21 is used as a barrier material, is preferably made of heat conducting materials, and regulates the temperature of the exchange area A22 through heat transfer between the exchange area A22 and the change area A21, so that the heat exchange effect of the working medium of the hydrogen production purification system in the areas is controlled.

In another embodiment, the device region A1 and the change region A21 may be located adjacent to each other in the switching region A22.

The change area A21 in the three-function area system is adjacent to the exchange area A22 in position, and a certain number of ventilation structures 7 are arranged around the second warm-keeping and cold-resistant box body 9. When the medium of the hydrogen production purification system flows into the pipe of the exchange area A22 for heat dissipation, heat is brought into the exchange area A22, so that the ambient temperature of the exchange area A22 tends to rise, and in order to prevent the temperature in the exchange area A22 from rising and complete the heat dissipation of the medium, the exchange area A22 needs to transfer out part of the heat, and the heat conduction of the part of the heat is carried out by virtue of the heat conduction material between the exchange area A22 and the change area A21.

When the environmental temperature of a project is low for a long time or even tens of degrees centigrade below zero, the project is divided into three subareas, namely a facility area A1, an exchange area A22 and a change area A21, wherein a special material is arranged between the two subareas of the exchange area A22 and the change area A21 for separation. The exchange area A22 and the change area A21 exchange heat through the heat-conducting member 8 to change the temperature of the exchange area A22, thereby cooling the working medium in the heat exchange tubes in the exchange area A22.

The temperature of the change area A21 is regulated and controlled through opening and closing of the ventilation openings, and heat transfer between the two function areas is realized through changing the temperature difference between the exchange area A22 and the change area A21. The heat dissipation problem of the working medium of the hydrogen production system in the exchange area A22 is finally completed through the adjusting mode, at the moment, the heat transfer in the functional area reaches balance, and a certain temperature difference is formed between the exchange area A22 and the change area A21.

The equipment area A1 is mainly used for placing hydrogen production purification system equipment to complete the hydrogen production and purification process of the system. The pipelines of the separation cooling and alkali liquor recovery part of the gas at the outlet of the electrolytic cell in the hydrogen production purification device, the deoxygenator in the purification system and the gas cooling part at the outlet of the dryer extend from an equipment area A1 to an exchange area A22 or an alternating area A2, and in order to increase the heat exchange effect of working media in the system, the pipelines can be selectively adopted in a two-partition box body: the heat dissipation pipeline is prolonged in the alternating region A2 to ensure the heat exchange effect. It is also possible to use in a three-part box: the heat dissipation pipeline is prolonged in the exchange area A22 to guarantee the heat exchange effect, namely the heat dissipation pipeline in the heat dissipation device in the cold region is prolonged to increase the heat exchange area, and the heat exchange effect is guaranteed.

As shown in fig. 3, the switching area a22 is recessed inside the first warming and cold-resistant box 1, and at this time, the heat dissipation arrangement of the heating device 2 may not need to extend additionally, and the heat dissipation may be achieved without additionally changing the original heating device 2. Of course, when in specific use, the heat exchange pipeline of the heating device 2 can be properly adjusted according to the arrangement of the heating device 2 and the heat dissipation requirement.

In a specific embodiment, the outer wall of the second warm-keeping and cold-resistant box body 9 is provided with a vent, the ventilation structure 7 comprises a driving device 7-1 and a sealing plate 7-2 capable of sealing the vent, and the driving device 7-1 is used for driving the sealing plate 7-2 to seal and open the vent. Specifically, the opening and closing modes of the vent include a plurality of modes such as inward/outward horizontal pushing, inward/outward upward suspension and the like. In order to prevent impurities from entering the alternating region a2, a dust-proof member is preferably provided at the vent, and specifically, a dust-proof net or a waterproof and breathable film may be provided. Specifically, the driving device 7-1 can drive the closing plate 7-2 to move through the transmission rod. Specifically, the ventilation opening can be located in a window structure or a pedestrian passing opening structure on the second warm-keeping and cold-resistant box body 9.

As shown in fig. 6, the bottom end of the sealing plate 7-2 is hinged to the outer wall of the second thermal insulation and cold-resistant box 9 through a hinge, and the driving device 7-1 is used for driving the sealing plate 7-2 to rotate around the hinge. As shown in fig. 7, the top end of the closing plate 7-2 is hinged with the outer wall of the second thermal-insulation cold-resistant box body 9 through a hinge.

Or, the side end of the sealing plate 7-2 is hinged with the outer wall of the second warm-keeping cold-resistant box body 9 through a hinge, and the driving device 7-1 is used for driving the sealing plate 7-2 to rotate around the hinge.

As shown in fig. 8, when the ventilation opening is in the open position, the sealing plate 7-2 is located on the outer side of the second warm-keeping cold-resistant box body 9 or on the inner side of the second warm-keeping cold-resistant box body 9, and at this time, the sealing plate 7-2 is a suspension window relative to the second warm-keeping cold-resistant box body 9. Or the sealing plate 7-2 is a plurality of plates, when the ventilation opening is in the open position, part of the sealing plate 7-2 is positioned at the outer side of the second warm-keeping cold-resistant box body 9, and part of the sealing plate 7-2 is positioned at the inner side of the second warm-keeping cold-resistant box body 9.

Specifically, the driving device 7-1 is a telescopic frame. Specifically, the expansion bracket can be composed of a plurality of expansion rods, or the expansion bracket is an X-shaped expansion bracket, one end of the expansion bracket is installed on the second warm-keeping cold-resistant box body 9, and the other end of the expansion bracket is installed on the sealing plate 7-2.

In another embodiment, as shown in fig. 9, the closing plate 7-2 is slidably disposed on the outer wall of the second thermal-insulation cold-resistant box body 9 through a sliding rail, and the driving device 7-1 is a translational driving assembly for pulling the closing plate 7-2 to reciprocate along the sliding rail, that is, the ventilation structure 7 is a sliding window structure. Specifically, the translation driving assembly can be an expansion rod, an expansion cylinder and the like.

As shown in fig. 5, the ventilation structure 7 is a louver structure, and the closing plate 7-2 is formed of a plurality of blades. Specifically, the blades can be opened and closed up and down or opened and closed left and right.

Specifically, the ventilation structure 7 may be a combination of at least two ventilation structures 7 as required.

Preferably, an anti-freezing heating element 7-3 is arranged at the joint position of the ventilation opening and the sealing plate 7-2. Specifically, the heat dissipation device in the cold region further comprises a first controller connected with the anti-freezing heating element 7-3 and the heating device 2, and when the heating device 2 works, the first controller controls the anti-freezing heating element 7-3 to heat. The application is used for deicing the ventilation opening through the anti-freezing heating element 7-3, and normal opening and closing of the ventilation opening are guaranteed.

Specifically, the anti-freezing heating element 7-3 is arranged on the ventilation opening and/or the closing plate 7-2. Preferably, the anti-freeze heating elements 7-3 are arranged annularly around the periphery of the closing plate 7-2 or the anti-freeze heating elements 7-3 are arranged annularly around the periphery of the ventilation opening.

On the basis of the above schemes, the heat dissipation device for the cold region further comprises a first temperature sensor and a second controller for controlling the movement of the ventilation structure 7, wherein the first temperature sensor is connected with the second controller, and the first temperature sensor is used for sensing the temperature of the heat exchange pipe in the alternating region a 2. Specifically, the first controller and the second controller may be the same controller 5, and specifically, the first controller and the second controller may be installed in the equipment area a 1. Specifically, when the temperature value of the first temperature sensor exceeds a first preset value, the controller 5 controls the ventilation structure 7 to be opened, the first preset value is determined according to the heat dissipation temperature of the specific heating device 2, and the application is not specifically limited.

Further, the cold region heat dissipation device further comprises a second temperature sensor used for sensing the temperature of the alternating region A2, and the second temperature sensor is connected with the second controller. Specifically, a second temperature sensor may be used to sense the temperature of the varying area a 21. The size of the opening of the vent can be adjusted according to the numerical value of the second temperature sensor by connecting the specific second controller, and of course, the size of the vent can also be adjusted according to the numerical value of the first temperature sensor. Specifically, when the temperature of the change area is higher than a preset value, the second controller controls the vent to be opened, and when the temperature of the change area is lower than the preset value, the second controller controls the vent to be closed.

Specifically, this application second controller sends signal and then control ventilation structure 7's switch through first temperature sensor and second temperature sensor's feedback, and then accomplishes the heat transfer.

When the system is specifically implemented, the opening and closing of the ventilation structure 7 are controlled by the second controller and are kept synchronous with the starting and stopping of the heating device 2, the opening and closing degree is determined according to the heat exchange effect of the heating device 2, and the linkage control is specifically carried out according to the heat exchange effect of the working medium of the hydrogen production purification system.

When the first temperature sensor detects that the heat exchange temperature of the working medium exceeds a parameter range, the second controller can automatically execute interlocking action, sends an instruction to the ventilation structure 7, and the ventilation structure 7 performs switching action after receiving the instruction.

This application has developed a hydrogen manufacturing energy-saving scheme suitable for cold areas, through the difference in temperature of each functional area in the governing system in order to realize the device 2 interior medium heat transfer that generates heat, reach the cooling effect to the device 2 that generates heat, easy operation, it is more convenient to use simultaneously.

The present application provides a hydrogen production system, which includes a heat generating device 2 and any one of the above-mentioned heat dissipation devices in cold regions, wherein the specific structure of the heat dissipation device in cold regions is described above. The working medium in the pipeline in the hydrogen production and purification system continuously radiates heat into the functional region, so that the environmental temperature of the functional region tends to rise, and a temperature difference is formed between the environmental temperature of the functional region and the temperature of an adjacent region. The occurrence of such a temperature difference promotes heat exchange in the functional zone.

Specifically, the heating device 2 is a hydrogen production purification device, and the heat exchange pipeline is a purification system heat exchange pipeline 4 and/or a hydrogen production system heat exchange pipeline 3. The gas separation and lye recovery lines of the hydrogen production system of equipment area a1, the deoxygenator of the purification system and the dryer outlet line extend from equipment area a1 to this point and return to equipment area a1 after heat dissipation is complete. Specifically, the first temperature sensor may be disposed in a conduit of the hydrogen production purification system.

The hydrogen production system that this application provided is applicable to the heat transfer problem of the hydrogen production system in cold areas, is of value to the construction of the hydrogen production purification system in cold areas, is convenient for extensively use widely.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cold region heat sink, comprising:

the heat insulation and cold resistance box comprises a first heat insulation and cold resistance box body (1), wherein an equipment area (A1) for placing a heating device (2) is formed in the first heat insulation and cold resistance box body (1);

the heat-exchange device comprises a second warm-keeping cold-resistant box body (9), wherein an alternating region (A2) for cooling a heat exchange pipeline of the heating device (2) is formed in the second warm-keeping cold-resistant box body (9);

the outer wall of the second warm-keeping cold-resistant box body (9) is arranged, and the alternating region (A2) and the outdoor ventilation structure (7) are communicated and isolated.

2. The cold district heat sink according to claim 1, characterised in that the first and second warm-keeping cold-resistant cases (1, 9) are one and the same case, the equipment area (a1) and the alternating area (a2) being separated by a functional area partition (6).

3. The cold district heat dissipation device of claim 1, wherein the ventilation structure (7) is plural, and the ventilation structure (7) is arranged on the top wall and/or the facade and/or the bottom wall of the second warm and cold-resistant box (9).

4. The cold district heat sink of claim 1, wherein:

the side wall of the second warm-keeping cold-resistant box body (9) is arranged inwards in the side wall of the first warm-keeping cold-resistant box body (1);

or the side wall of the second warm-keeping cold-resistant box body (9) is flush with the side wall of the first warm-keeping cold-resistant box body (1);

or the side wall of the second warm-keeping cold-resistant box body (9) protrudes outwards from the side wall of the first warm-keeping cold-resistant box body (1).

5. The cold district heat sink according to claim 1, wherein the alternating zone (a2) is separated by a heat conducting member (8) into an exchange zone (a22) and a change zone (a21), heat exchange pipes are located in the exchange zone (a22), and the ventilation structure (7) is located on a wall surface of the second warm and cold-resistant box (9) corresponding to the change zone (a 21).

6. The cold district heat sink according to claim 5, wherein the change zone (A21) and the equipment zone (A1) are located on opposite sides of the exchange zone (A22), respectively.

7. The cold district heat sink according to claim 5, characterised in that the heat conducting element (8) is detachably connected to the second warm-keeping and cold-resistant tank (9) and/or the first warm-keeping and cold-resistant tank (1).

8. The cold district heat sink according to claim 5, characterised in that the exchange area (A22) is recessed inside the first warm-keeping and cold-resistant box (1) or the exchange area (A22) is located inside the second warm-keeping and cold-resistant box (9).

9. The cold district heat sink according to claim 5, wherein the heat-conducting member (8) separates the exchange area (A22) and the change area (A21) into two separate areas.

10. The cold region heat dissipation device according to claim 1, wherein the outer wall of the second warm cold-resistant box body (9) is provided with a vent, the ventilation structure (7) comprises a driving device (7-1) and a sealing plate (7-2) capable of sealing the vent, and the driving device (7-1) is used for driving the sealing plate (7-2) to seal and open the vent.

11. The cold region heat dissipation device according to claim 10, wherein an anti-freezing heating element (7-3) is provided at a position where the ventilation opening is attached to the sealing plate (7-2).

12. The cold district heat sink according to claim 11, wherein the antifreeze heating element (7-3) is provided on the ventilation opening and/or the closing plate (7-2).

13. The cold district heat dissipation device according to claim 11, further comprising a first controller connected to the antifreeze heating members (7-3) and the heat generating device (2), the first controller controlling the antifreeze heating members (7-3) to heat when the heat generating device (2) is operated.

14. The cold region heat dissipation device as claimed in claim 10, wherein the top end or the bottom end or the side end of the sealing plate (7-2) is hinged to the outer wall of the second thermal insulation and cold-resistant box body (9) through a hinge, and the driving device (7-1) is used for driving the sealing plate (7-2) to rotate around the hinge.

15. The cold district heat sink according to claim 10, characterised in that the closing plate (7-2) is located outside the second warm-keeping cold-resistant box (9) and/or inside the second warm-keeping cold-resistant box (9) when the ventilation opening is in the open position.

16. The cold district heat sink according to claim 15, wherein the driving means (7-1) is a telescopic frame.

17. The cold region heat dissipation device according to claim 10, wherein the sealing plate (7-2) is slidably disposed on the outer wall of the second thermal insulation cold-resistant box body (9) through a sliding rail, and the driving device (7-1) is a translational driving component for pulling the sealing plate (7-2) to reciprocate along the sliding rail.

18. The cold district heat sink according to claim 10, wherein the ventilation structure (7) is a louver structure, and the closing plate (7-2) is formed of a plurality of fins.

19. The cold district heat sink according to any one of claims 1-18, further comprising a first temperature sensor and a second controller for controlling the opening and closing of the ventilation structure (7), wherein the first temperature sensor is connected to the second controller, the first temperature sensor is used for sensing the temperature of the heat exchange pipe in the alternating area (a2), and when the second controller receives that the temperature value of the first temperature sensor exceeds a first preset value, the second controller controls the opening of the ventilation structure (7).

20. A hydrogen production system comprising a heat generating device (2) and a cold district heat sink according to any one of claims 1 to 19.

21. The system for producing hydrogen according to claim 20, wherein the heat generating device (2) is a hydrogen production purification device, and the heat exchange pipeline is a purification system heat exchange pipeline (4) and/or a hydrogen production system heat exchange pipeline (3).