A hydrogen cooler for the outlet of a skid-mounted liquid-driven hydrogen compressor

Abstract

The present invention relates to the technical fields of liquid-driven hydrogen compressors and hydrogen energy cooling, and particularly relates to a hydrogen cooler for the outlet of a skid-mounted liquid-driven hydrogen compressor. It includes a heat exchange body and panels arranged on the left and right sides of the heat exchange body. The heat exchange body includes five groups of cooling modules arranged side by side in sequence from left to right. Each of the cooling modules is welded together through a partition plate. A coolant inlet pipe is provided on the left panel on the upper side. Its structure is reasonably designed. On the one hand, the microchannel hydrogen cooler replaces the traditional coiled tube shell-and-tube heat exchanger. Due to the characteristics of the microchannels, the heat exchange efficiency is greatly improved, and the heat exchange efficiency of the existing heat exchanger with the same volume is 5-10 times that of the original one. Furthermore, the floor area and the overall weight of the liquid-driven hydrogen compressor are effectively reduced, and the consumption of materials is reduced. On the other hand, after the hydrogen cooler is skidded, the length of the main pipeline is effectively shortened, and the requirement can be met without the need for the chiller to have a high head, solving the problems existing in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical fields of liquid-driven hydrogen compressors and hydrogen energy cooling technologies, and particularly relates to a hydrogen cooler for the outlet of a skid-mounted liquid-driven hydrogen compressor. Background Art

[0002] Hydrogen energy is regarded as the best choice for achieving large-scale and deep decarbonization in the transportation field due to its wide sources and clean and carbon-free characteristics. As the core hub connecting the upstream and downstream industrial chains, hydrogen refueling stations have become a key link in the development of hydrogen energy. The core equipment of hydrogen refueling stations mainly includes hydrogen compressors, hydrogen dispensers, gas unloading columns, sequence control cabinets, hydrogen storage bottle groups, etc. Among them, hydrogen compressors are one of the core key single equipment.

[0003] Currently, hydrogen refueling stations are mainly divided into hydrogen production and refueling integrated stations, fixed hydrogen refueling stations, and skid-mounted hydrogen refueling stations. The hydrogen compressors used in hydrogen refueling stations are mainly divided into diaphragm compressors, liquid-driven compressors, and ionic compressors. Among the three technical routes, diaphragm compressors and liquid-driven compressors are the most widely used. Among them, liquid-driven compressors have the characteristics of large single-stage displacement, strong adaptability to inlet pressure, and high outlet pressure. In the trend of large displacement, liquid-driven compressors have advantages in displacement, and at the same time have characteristics such as modular design, relatively small volume, simple maintenance, and high seal life, so the attention in recent years has been continuously increasing. Therefore, liquid-driven compressors are the main development direction for reducing the cost of hydrogen refueling stations, reducing their floor area, and improving the safety performance of products.

[0004] The liquid-driven compressor is also called a liquid-driven hydrogen compressor. For the skid-mounted facilities used in conventional liquid-driven hydrogen compressors, there are five parts of the hydrogen pipeline that need to be cooled, corresponding to five heat exchangers. Most of the heat exchangers used in the market are coiled tube shell-and-tube heat exchangers, and each heat exchanger needs to be processed separately, wrapped with environmental protection insulation cotton, and finally assembled into a skid. The whole equipment has a large volume and a relatively heavy total mass (about 350 kg).

[0005] In addition, the cooling water pipe interfaces of each heat exchanger are all located on the same side of the hydrogen pipeline. Although it is beneficial for the pipeline layout of the liquid-driven hydrogen compressor on a single line, the coiled tube shell-and-tube heat exchangers adopt spiral pipeline layouts, which makes the total pipeline length longer. Therefore, higher requirements are imposed on the water chiller, and the water chiller needs to be equipped with a higher head.

[0006] In addition, since hydrogen is a gas with low viscosity, the impact of pipeline pressure drop on compressor performance is negligible compared to the gas's own pressure (the pressure drop of each cooler stage is about 15kp). The cost of the skid-mounted coil-type shell-and-tube heat exchanger is relatively high, with dozens of hydrogen straight pipe joints, conversion heads, hydrogen joints, etc., and many connections, so there is a high risk of leakage. The actual cooling capacity required by the liquid-driven hydrogen compressor, in addition to hydrogen cooling, actually also includes the cooling needs of the hydraulic station and the booster cylinder water jacket. Its comprehensive needs place high demands on the flow rate and head of the matching chiller. Currently, the application of coil-type shell-and-tube heat exchangers in hydrogen energy for high-pressure working conditions can only be limited to 35MPa working conditions. If used under 70MPa or 90MPa working conditions, there will be great safety hazards. Summary of the Invention

[0007] In order to make up for the deficiencies of the prior art, the present invention provides a skid-mounted hydrogen cooler for the outlet of a liquid-driven hydrogen compressor. The skid-mounted hydrogen cooler has a reasonable structural design and replaces the original five coil-type shell-and-tube heat exchangers with a microchannel heat exchange method. On the one hand, the microchannel hydrogen cooler replaces the traditional coil-type shell-and-tube heat exchanger. Due to the characteristics of the microchannel, the heat exchange efficiency is greatly improved. The heat exchange efficiency of the same volume is 5-10 times that of the original heat exchanger, thereby effectively reducing the footprint and overall weight of the liquid-driven hydrogen compressor and reducing material consumption. On the other hand, after the hydrogen cooler is skid-mounted, the length of the main pipeline is effectively shortened, and the requirements can be met without the chiller having a high head. The liquid-driven hydrogen compressor adopts an integrated molding method, which makes the equipment have higher strength while reducing the number of connections as much as possible, thereby reducing the risk of hydrogen leakage, and can meet the requirements under high-pressure working conditions such as 70MPa and 90MPa, effectively preventing the occurrence of safety hazards, and solving the problems existing in the prior art.

[0008] The technical solution adopted by the present invention to solve the above technical problems is:

[0009] A skid-mounted hydrogen cooler for the outlet of a liquid-driven hydrogen compressor comprises a heat exchanger and panels arranged on the left and right sides of the heat exchanger, wherein the heat exchanger comprises five groups of cooling modules arranged side by side from left to right, and the cooling modules are welded together by partitions, a coolant inlet pipe is provided on the left panel on the upper side, and a liquid inlet channel is horizontally penetrated through the heat exchanger and the left panel at the position corresponding to the coolant inlet pipe; a coolant outlet pipe is provided on the right panel on the lower side, and a liquid outlet channel is horizontally penetrated through the heat exchanger and the right panel at the position corresponding to the coolant outlet pipe, and each cooling module is provided with an air inlet pipe and an air outlet pipe.

[0010] Optionally, the cooling module includes a plurality of core plates welded together side by side. A first flow channel is provided on the inner wall of the core plates in odd-numbered columns, and a second flow channel is provided on the inner wall of the core plates in even-numbered columns. The first flow channel and the second flow channel on adjacent core plates are arranged in an intersecting manner. The positions where the liquid inlet channels penetrate through the cooling module are all located at the top inside the first flow channel of the core plates, and the positions where the liquid outlet channels penetrate through the cooling module are all located at the bottom inside the first flow channel of the core plates. Upper through-holes are respectively provided through the core plates at the top inside each second flow channel, and lower through-holes are respectively provided through the core plates at the bottom inside each second flow channel. Each of the intake pipes is respectively arranged at the top of the cooling module corresponding to the position of the upper through-hole and is connected to the upper through-hole in a communicating manner. Each of the exhaust pipes is respectively arranged at the bottom of the cooling module corresponding to the position of the lower through-hole and is connected to the lower through-hole in a communicating manner.

[0011] Optionally, for the cooling modules on the left and right sides of the heat exchanger, the intake pipes are arranged on the side walls of the panel, and the intake pipes pass through the panel and are connected to the upper through-holes inside the second flow channels of each core plate in a communicating manner; the exhaust pipes are arranged on the side walls of the panel, and the intake pipes pass through the panel and are connected to the lower through-holes inside the second flow channels of each core plate in a communicating manner.

[0012] Optionally, the first flow channels provided on each core plate are arranged in an L shape, U shape, Z shape, chevron shape or convex shape.

[0013] Optionally, the second flow channels provided on each core plate are arranged in an L shape, U shape, Z shape, chevron shape or convex shape.

[0014] Optionally, gaps are provided at the same position at the top of the core plates in the even-numbered columns of each cooling module.

[0015] Optionally, the intake pipes are arranged at the front side position at the top of the cooling module, and the exhaust pipes are arranged at the rear side position at the bottom of the cooling module.

[0016] Optionally, the intake pipes provided on each cooling module are arranged in a staggered manner front and back.

[0017] Optionally, the intake pipes are arranged on the front side of the upper part of the panel, and the exhaust pipes are arranged on the rear side of the lower part of the panel.

[0018] Optionally, the intake pipes provided on the left panel and the intake pipes provided on the right panel are arranged in a staggered manner front and back.

[0019] The present invention adopts the above technical solution, and the advantages are as follows: The structure is reasonably designed. By using the microchannel heat exchange method to replace the original five coiled tube shell-and-tube heat exchangers. On the one hand, the microchannel hydrogen cooler replaces the traditional coiled tube shell-and-tube heat exchanger. Due to the characteristics of the microchannel, the heat exchange efficiency is greatly improved. The heat exchange efficiency of the microchannel hydrogen cooler is 5-10 times that of the original heat exchanger with the same volume. Furthermore, the floor area and the overall weight of the liquid-driven hydrogen compressor are effectively reduced, and the material consumption is decreased. On the other hand, after the hydrogen cooler is assembled into a skid, the length of the main pipeline is effectively shortened, and it is possible to meet the requirements without the need for the chiller to have a high head. The liquid-driven hydrogen compressor is integrally formed, which not only makes the equipment have high strength but also reduces the joints as much as possible, thereby reducing the risk of hydrogen leakage and meeting the requirements under high-pressure conditions such as 70 MPa and 90 MPa, effectively preventing the occurrence of potential safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 is Figure 1 the left-view structural schematic diagram of

[0022] Figure 3 is Figure 1 the right-view structural schematic diagram of

[0023] Figure 4 is Figure 1 the top-view structural schematic diagram of

[0024] Figure 5 is Figure 1 the bottom-view structural schematic diagram of

[0025] Figure 6 is the side-view structural schematic diagram of the core plate in the odd-numbered columns;

[0026] Figure 7 is the side-view structural schematic diagram of the core plate in the even-numbered columns;

[0027] Figure 8 is the side-view structural schematic diagram of the core plate in the even-numbered columns;

[0028] Figure 9 is the side-view structural schematic diagram of the partition board;

[0029] Figure 10 is the longitudinal sectional structural schematic diagram of the core plate in the even-numbered columns;

[0030] Figure 11 is the connection structural schematic diagram of using five groups of coiled tube shell-and-tube heat exchangers;

[0031] Figure 12 is the connection structural schematic diagram of the present invention;

[0032] In the figure, 1 is a heat exchanger; 101 is a cooling module; 102 is a partition board;

[0033] 2 is a panel; 3 is a coolant inlet pipe; 4 is a coolant outlet pipe; 5 is an inlet channel; 6 is an outlet channel; 7 is an air inlet pipe; 8 is an air outlet pipe; 9 is a core board; 10 is a first flow channel; 11 is a second flow channel; 12 is an upper through hole; 13 is a lower through hole; 14 is a notch. Detailed implementation manners

[0034] To clearly illustrate the technical features of this solution, the present invention will be elaborated in detail below through specific implementation manners in combination with the accompanying drawings. In the following description, many specific details are set forth in order to fully understand this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited by the specific embodiments disclosed below.

[0035] In addition, in the description of this application, it should be understood that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting this application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "plurality" means two or more, unless otherwise specifically and clearly defined.

[0036] In this application, unless otherwise clearly specified and limited, the terms "install", "connect", "couple", "fix", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0037] As Figure 1-12 shown, in this embodiment, a hydrogen cooler for the outlet of a skid-mounted liquid-driven hydrogen compressor includes a heat exchanger body 1 and panels 2 arranged on the left and right sides of the heat exchanger body 1. The heat exchanger body 1 includes five groups of cooling modules 101 arranged side by side in sequence from left to right. Each of the cooling modules 101 is welded together by a partition 102. A coolant inlet pipe 3 is provided on the left panel 2 on the upper side. At the position corresponding to the coolant inlet pipe 3, a liquid inlet channel 5 is horizontally penetrated through the heat exchanger body 1 and the left panel 2. A coolant outlet pipe 4 is provided on the right panel 2 on the lower side. At the position corresponding to the coolant outlet pipe 4, a liquid outlet channel 6 is horizontally penetrated through the heat exchanger body 1 and the right panel 2. An inlet gas pipe 7 and an outlet gas pipe 8 are respectively provided on each of the cooling modules 101.

[0038] Optionally, the cooling module 101 includes a plurality of core plates 9 welded together side by side. A first flow channel 10 is provided on the inner wall of the core plates 9 in odd-numbered columns, and a second flow channel 11 is provided on the inner wall of the core plates 9 in even-numbered columns. The first flow channel 10 and the second flow channel 11 on the adjacent core plates 9 are arranged in an intersecting manner. The positions where the liquid inlet channel 5 penetrates through the cooling module 101 are all located at the top in the first flow channel 10 of the core plates 9, and the positions where the liquid outlet channel 6 penetrates through the cooling module 101 are all located at the bottom in the first flow channel 10 of the core plates 9. Upper through holes 12 are penetrated through the core plates 9 at the top in each of the second flow channels 11, and lower through holes 13 are penetrated through the core plates 9 at the bottom in each of the second flow channels 11. Each of the inlet gas pipes 7 is respectively arranged at the top of the cooling module 101 corresponding to the position of the upper through hole 12 and is connected to the upper through hole 12 in a communicating manner. Each of the outlet gas pipes 8 is respectively arranged at the bottom of the cooling module 101 corresponding to the position of the lower through hole 13 and is connected to the lower through hole 13 in a communicating manner.

[0039] Optionally, for the cooling modules 101 on the left and right sides of the heat exchanger body 1, the inlet gas pipes 7 are arranged on the side walls of the panels 2, and the inlet gas pipes 7 penetrate through the panels 2 and are connected to the upper through holes 12 in the second flow channels 11 of each core plate 9; the outlet gas pipes 8 are arranged on the side walls of the panels 2, and the inlet gas pipes 7 penetrate through the panels 2 and are connected to the lower through holes 13 in the second flow channels 11 of each core plate 9.

[0040] Optionally, the first flow channels 10 provided on each of the core plates 9 are arranged in an L shape, a U shape, a Z shape, a chevron shape or a convex shape. The path length of the first flow channel 10 in the core plate 9 is extended, so as to increase the contact area with the adjacent core plates 9 in a limited area, and further improve the heat exchange efficiency.

[0041] Optionally, the second flow channels 11 provided on each of the core plates 9 are arranged in an L shape, a U shape, a Z shape, a chevron shape or a convex shape. The path length of the second flow channel 11 in the core plate 9 is extended, so as to increase the contact area with the adjacent core plates 9 in a limited area, and further improve the heat exchange efficiency.

[0042] Optionally, at the same position at the top of the even-numbered core plates 9 of each cooling module 101, there are all provided with gaps 14. When the core plates 9 are welded, positioning can be carried out through the gaps 14, so as to ensure that the positions of each cooling module 101 do not change during welding, thereby improving the overall strength of the hydrogen cooler.

[0043] Optionally, the inlet pipe 7 is arranged at the front side position at the top of the cooling module 101, and the outlet pipe 8 is arranged at the rear side position at the bottom of the cooling module 101. It can make hydrogen fill the second flow channel 11 of the core plate 9 to improve the heat exchange efficiency.

[0044] Optionally, the inlet pipes 7 provided on each cooling module 101 are arranged in a staggered front and back manner. On the one hand, it is convenient for the installation of the connecting pipes. When the connecting pipes are connected to each inlet pipe 7, there is sufficient space for installation; on the other hand, it is beneficial to improve the overall heat exchange efficiency.

[0045] Optionally, the inlet pipe 7 is arranged at the front side near the upper part of the panel 2, and the outlet pipe 8 is arranged at the rear side near the lower part of the panel 2. It is convenient for the installation of the connecting pipes, providing sufficient space for installation, avoiding that the inlet pipes 7 of all the cooling modules 101 are at the top of the heat exchanger 1, or the outlet pipes 8 are all at the bottom of the heat exchanger 1; it can make hydrogen fill the second flow channel 11 of the core plate 9 to improve the heat exchange efficiency.

[0046] Optionally, the inlet pipe 7 provided on the left panel 2 and the inlet pipe 7 provided on the right panel 2 are arranged in a staggered front and back manner.

[0047] When the device is installed, the coolant inlet pipe 3 and the coolant outlet pipe 4 of the chiller are connected through pipelines to form a cooling cycle. Then, the five groups of cooling modules are defined and distinguished. From left to right, they are the first-stage pre-cooling module, the first-stage exhaust cooling module, the second-stage exhaust cooling module, the third-stage pre-cooling module, and the third-stage exhaust cooling module. And the tanker is respectively connected to the inlet pipe 7 of the first-stage pre-cooling module through pipelines, and the outlet pipe 8 of the first-stage pre-cooling module is connected to the first-stage compression cylinder; the first-stage compression cylinder is connected to the inlet pipe 7 of the first-stage exhaust cooling module, and the outlet pipe 8 of the first-stage exhaust cooling module is connected to the second-stage compression cylinder; then the second-stage compression cylinder is connected to the inlet pipe 7 of the second-stage exhaust cooling module, and the outlet pipe 8 of the second-stage exhaust cooling module is connected to the first storage tank; the second storage tank is connected to the inlet pipe 7 of the third-stage pre-cooling module through pipelines, and the outlet pipe 8 of the third-stage pre-cooling module is connected to the third-stage compression cylinder; the third-stage compression cylinder is connected to the inlet pipe 7 of the third-stage exhaust cooling module, and the outlet pipe 8 of the third-stage exhaust cooling module is then connected to the third storage tank.

[0048] The primary precooling module is a precooling module that cools the hydrogen when filling the hydrogen in the tank truck into the primary cylinder. The hydrogen enters the second flow channel 11 of each core plate 9 and exchanges heat with the first flow channel 10 of the connected core plate 9. The primary exhaust cooling module is used to cool the hydrogen when filling the hydrogen in the primary compression cylinder into the secondary compression cylinder. The secondary exhaust cooling module is a cooling module that cools the hydrogen when filling the hydrogen in the secondary compression cylinder into storage tank 1 to cool down the temperature rise during hydrogen filling.

[0049] The three-row precooling module is used to precool and cool down the hydrogen when filling the hydrogen in storage tank 2 into the tertiary compression cylinder. The tertiary exhaust cooling is used to cool the hydrogen in the tertiary compression cylinder when filling it into storage tank 3. Compared with the cooler of the conventional liquid-driven hydrogen compressor skid-mounted facility, which is mainly a coiled tube heat exchanger with pipelines connected in sequence, the overall liquid-driven hydrogen compressor skid-mounted requires a large space volume for installation and layout. After the hydrogen cooler is made into a skid, the length of the main pipeline is effectively shortened, and the requirement can be met without the need for the chiller to have a high head. The liquid-driven hydrogen compressor is formed by integral welding, which not only makes the equipment have high strength but also reduces the joints as much as possible, thereby reducing the risk of hydrogen leakage. It can meet the requirements under high-pressure conditions such as 70 MPa and 90 MPa, effectively preventing the occurrence of potential safety hazards and solving the problems existing in the prior art.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and the description of the present invention. For those skilled in the art of this technology, any alternative improvements or transformations made to the embodiments of the present invention fall within the protection scope of the present invention.

[0051] The details not described in the present invention are all well-known technologies to those skilled in the art of this technology.

Claims

1. A skid-mounted hydrogen cooler for outlet of liquid-driven hydrogen compressor, characterized in that: The heat exchanger comprises a heat exchange body and panels arranged on the left and right sides of the heat exchange body, the heat exchange body comprises five groups of cooling modules arranged side by side from left to right, each of the cooling modules is welded together by partitions, a coolant inlet pipe is provided on the left panel on the upper side, and a liquid inlet channel is horizontally penetrated through the heat exchange body and the left panel at the position of the coolant inlet pipe; a coolant outlet pipe is provided on the right panel on the lower side, and a liquid outlet channel is horizontally penetrated through the heat exchange body and the right panel at the position of the coolant outlet pipe, and each cooling module is respectively provided with an air inlet pipe and an air outlet pipe; the cooling module comprises a plurality of core plates welded together side by side, and a plurality of core plates are provided on the inner walls of the odd-numbered columns of the core plates. There is a first flow channel, and a second flow channel is provided on the inner wall of the core plate in an even-numbered column. The first flow channel and the second flow channel on adjacent core plates are intersected. The position where the liquid inlet channel passes through the cooling module is located at the top of the first flow channel of the core plate, and the position where the liquid outlet channel passes through the cooling module is located at the bottom of the first flow channel of the core plate. Upper through holes are provided on the core plate at the top of each second flow channel, and lower through holes are provided on the core plate at the bottom of each second flow channel. Each of the air inlet pipes is respectively arranged at the top of the cooling module at the position of the upper through hole and is connected to the upper through hole. Each of the air outlet pipes is respectively arranged at the bottom of the cooling module at the position of the lower through hole and is connected to the lower through hole.

2. The skid-mounted liquid-driven hydrogen compressor outlet hydrogen cooler according to claim 1, characterized in that: The cooling modules on the left and right sides of the heat exchanger have their air inlet pipes arranged on the side walls of the panel, and the air inlet pipes pass through the panel and are connected to the upper through holes in the second flow channels of each core plate; the air outlet pipes are arranged on the side walls of the panel, and the air inlet pipes pass through the panel and are connected to the lower through holes in the second flow channels of each core plate.

3. A skid-mounted hydrogen cooler for outlet of a liquid-driven hydrogen compressor according to claim 1 or 2, characterized in that: The first flow channels provided on each core plate are arranged in an L-shape, a U-shape, a Z-shape, a herringbone shape or a convex shape.

4. A skid-mounted hydrogen cooler for outlet of a liquid-driven hydrogen compressor according to claim 1 or 2, characterized in that: The second flow channels provided on each core plate are arranged in an L-shape, a U-shape, a Z-shape, a herringbone shape or a convex shape.

5. A skid-mounted hydrogen cooler for outlet of a liquid-driven hydrogen compressor according to claim 1 or 2, characterized in that: Notches are provided at the same position on the top of the core plates of the even-numbered columns of each cooling module.

6. The skid-mounted hydrogen cooler for outlet of a liquid-driven hydrogen compressor according to claim 1, characterized in that: The air inlet pipe is arranged at the front side of the top of the cooling module, while the air outlet pipe is arranged at the rear side of the bottom of the cooling module.

7. The skid-mounted hydrogen cooler for outlet of a liquid-driven hydrogen compressor according to claim 6, characterized in that: The air inlet pipes arranged on each cooling module are all staggered front to back.

8. The skid-mounted hydrogen cooler for outlet of a liquid-driven hydrogen compressor according to claim 2, characterized in that: The air inlet pipe is arranged on the front side of the upper part of the panel, and the air outlet pipe is arranged on the rear side of the lower part of the panel.

9. The skid-mounted hydrogen cooler for outlet of a liquid-driven hydrogen compressor according to claim 8, characterized in that: The air intake pipe arranged on the left side panel and the air intake pipe arranged on the right side panel are arranged in a staggered manner front to back.

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