Composite hydrogen cooling device

Abstract

The utility model discloses a combined type hydrogen cooling device. The combined type hydrogen cooling device comprises a first-stage cooler, a first gas-water separator, a second-stage cooler and a second gas-water separator which are sequentially arranged in the hydrogen flow direction. The gas inlet end of the primary cooler is connected with a hydrogen gas source containing moisture; the cold inlet ends of the first-stage cooler and the second-stage cooler are respectively connected with a cooling source, and the heat outlet ends are provided with a recovery device and are respectively connected with the recovery device. The first cooler and the second cooler are arranged and connected in series to cool hydrogen twice, cooling efficiency is improved, meanwhile, the first cooler and the second cooler are connected with the cold source respectively, cooling efficiency is further improved, and the first gas-water separator and the second gas-water separator are connected with the cold source respectively. The hydrogen cooling, dehumidifying and drying device has the advantages that hydrogen is dehumidified twice, the dehumidifying effect is improved, and the simple and efficient hydrogen cooling, dehumidifying and drying device is provided through the series combination design of two stages of coolers with unique structures.

Description

Technical Field

[0001] The present application relates to a composite hydrogen cooling device, belonging to the technical field of hydrogen production. Background Art

[0002] There are four main ways to produce hydrogen at present: hydrogen from fossil fuels, hydrogen from industrial byproducts, hydrogen from water electrolysis, and hydrogen from biomass. However, with the approach of the "dual carbon" goal and the deepening of the scientific concept of sustainable development, using water (H2O) as a source of hydrogen is undoubtedly more extensive and environmentally friendly. Therefore, water electrolysis hydrogen production technology has gradually become an increasingly popular hydrogen production technology. However, in addition to high voltage, high current, and high power consumption, water electrolysis hydrogen production also requires necessary cooling of the generated hydrogen to obtain cleaner and drier hydrogen before it can be directly used and applied at the user end. In existing technologies, natural air cooling is often used to cool the generated cold air, but air cooling is affected by temperature. The increase in temperature leads to a decrease in cooling efficiency, and the generated hydrogen cannot be dehumidified at the same time. Utility Model Content

[0003] In view of this, the present application provides a composite hydrogen cooling device, which improves the cooling efficiency of the generated hydrogen and performs wet drying on the generated hydrogen. The specific scheme is:

[0004] A composite hydrogen cooling device comprises a primary cooler, a first gas-water separator, a secondary cooler, and a second gas-water separator which are sequentially arranged along the hydrogen gas flow direction;

[0005] The air inlet end of the primary cooler is connected to a hydrogen gas source containing moisture, the hydrogen gas source containing moisture enters the primary cooler for a first cooling, then enters the first gas-water separator for a first gas-water separation, then enters the secondary cooler for a second cooling, and finally enters the second gas-water separator for a second gas-water separation, and the hydrogen gas flows to the user end;

[0006] The cold inlet ends of the primary cooler and the secondary cooler are respectively connected to a cooling source, and the heat outlet ends of the primary cooler and the secondary cooler are provided with recovery devices and are respectively connected to the recovery devices;

[0007] The input end of the first gas-water separator is connected to the gas outlet end of the first cooler, and the output end of the first gas-water separator is connected to the gas inlet end of the second cooler;

[0008] The input end of the second gas-water separator is connected to the gas outlet end of the secondary cooler.

[0009] Preferably, the primary cooler comprises a primary cooling sealed shell and a primary cooling pipeline arranged in the primary cooling sealed shell;

[0010] The primary cooling pipeline is arranged around S in the primary cooling sealed shell along the vertical direction of the primary cooling sealed shell, the input end of the primary cooling pipeline extends from one side of the top of the primary cooling sealed shell and is connected to the hydrogen gas source containing moisture, and the output end of the primary cooling pipeline extends from one side of the bottom of the primary cooling sealed shell and is connected to the input end of the first gas-water separator;

[0011] The top of the primary cooling sealed shell is provided with a first cold inlet end, and the bottom of the primary cooling sealed shell is provided with a first hot outlet end;

[0012] The first cold inlet end is connected to a cooling source;

[0013] The first heat outlet end is connected to the recovery device.

[0014] Preferably, the secondary cooler includes any one of a first secondary cooler, a second secondary cooler, and a third secondary cooler.

[0015] Preferably, the first and second-stage cooler comprises a first and second-stage cooling sealed housing and a first and second-stage cooling pipeline;

[0016] A second cold inlet is provided on the top of the first and second cooling sealed shell, the second cold inlet is connected to a cold source, and a second hot outlet is provided on the bottom of the first and second cooling sealed shell;

[0017] The first and second cooling pipelines are arranged around S in the horizontal direction, the input end of the first and second cooling pipelines extends from one side of the top of the first and second cooling sealed shells, and is connected to the output end of the first gas-water separator, and the output end of the first and second cooling pipelines extends from the bottom of the first and second cooling sealed shells, on the side opposite to the input end of the first and second cooling pipelines, and is connected to the input end of the second gas-water separator.

[0018] Preferably, the second secondary cooler comprises a second secondary cooling sealed housing and a second secondary cooling pipeline;

[0019] A third cold inlet end and a third hot outlet end are respectively arranged on opposite sides of the top and bottom of the second secondary cooling sealed shell, a first air inlet end is arranged on the top of the second secondary cooling sealed shell, and a first air outlet end is arranged on the bottom of the second secondary cooling sealed shell;

[0020] The third cold inlet end is connected to a cold source, and the third heat outlet end is connected to a recovery device;

[0021] The second secondary cooling pipeline is located in the second secondary sealed housing, and the second secondary cooling pipeline is provided with a plurality of channels, and the input ends and output ends of the plurality of channels of the second secondary cooling pipeline are respectively oriented toward the first air inlet end and the first air outlet end;

[0022] The output end of the second secondary cooling pipeline is located below the heat output end.

[0023] Preferably, the second-level cooling pipes are all spiral pipes, and a plurality of the second-level cooling pipes are closely arranged in parallel to form a cylindrical spiral pipe body structure.

[0024] Preferably, the third and second-level cooler comprises a third and second-level cooling sealed housing and a third and second-level sealed pipeline;

[0025] The third and second level cooling sealed shell is a horizontally placed cylindrical structure, a second air inlet end is arranged at the top of one end of the third and second level sealed shell facing the first air-water separator, a fourth heat outlet end is arranged at the bottom of one end of the third and second level sealed shell facing the first air-water separator, and a fourth cold inlet end and a second air outlet end are arranged at the top of one end of the third and second level sealed shell away from the first air-water separator;

[0026] The third and second level sealed pipeline includes a plurality of delivery pipelines and a plurality of baffles arranged in the third and second level cooling sealed housing;

[0027] A plurality of delivery pipelines are arranged in parallel along the axial direction of the third secondary cooling sealed shell, the input end of the delivery pipeline is located between the second air inlet end and the fourth heat outlet end, the output end of the delivery pipeline is located between the fourth cold inlet end and the second air outlet end, and the input end and the output end of the delivery pipeline are respectively provided with sealing disks;

[0028] The sealing disks are respectively vertically installed in the third and second cooling sealed shells, and form an air inlet cavity and an air outlet cavity with the two ends of the third and second cooling sealed shells respectively;

[0029] The input end and the output end of the conveying pipeline are respectively connected to the air inlet cavity and the air outlet cavity through the sealing disk;

[0030] The baffle plate comprises a first baffle plate and a second baffle plate which are arranged vertically, and the first baffle plate and the second baffle plate are arranged at intervals;

[0031] The top end of the first baffle is mounted on the inner wall of the top of the third secondary cooling sealed shell, and a gap is set between the bottom end of the first baffle and the inner wall of the bottom of the third secondary cooling sealed shell;

[0032] A gap is set between the top of the second baffle plate and the inner wall of the top of the third secondary cooling sealed shell, and the bottom of the second baffle plate is installed on the inner wall of the bottom of the third secondary cooling sealed shell;

[0033] The gap formed by the bottom end of the first baffle plate and the inner wall of the bottom of the third secondary cooling sealed shell, and the gap formed by the top end of the second baffle plate and the inner wall of the top of the third secondary cooling sealed shell form a cooling water flow channel.

[0034] Preferably, condensate drain ports are respectively provided at the bottoms of both ends of the third and second-level cooling sealed shell;

[0035] The condensed water drainage outlets are respectively located at the bottom of the air inlet cavity and the air outlet cavity, and are respectively located directly below the fourth cold inlet end and the fourth hot outlet end.

[0036] Preferably, a first one-way valve is provided between the first gas-water separator and the input end of the secondary cooler;

[0037] A second one-way valve is provided at the output end of the second gas-water separator.

[0038] Preferably, the cold inlet ends of the primary cooler and the secondary cooler are respectively provided with water pumps;

[0039] The input end of the water pump is connected to a cold water tank, and the output end of the water pump is connected to the cold inlet ends of the primary cooler and the secondary cooler respectively;

[0040] The input end of the primary cooler is provided with a hydrogen pump;

[0041] The input end of the hydrogen pump is connected to the source of the water-containing hydrogen, and the output end of the hydrogen pump is connected to the input end of the primary cooler.

[0042] The beneficial effects of this application include:

[0043] The utility model provides a first cooler and a second cooler, and the first cooler and the second cooler are connected in series, so as to cool the hydrogen twice, thereby improving the cooling efficiency. At the same time, the first cooler and the second cooler are respectively connected to a cold source, so as to keep the cold sources of the first cooler and the second cooler the same, thereby effectively ensuring the cooling temperature of the two-stage cooler and further improving the cooling efficiency.

[0044] By arranging the first gas-water separator and the second gas-water separator at the output ends of the primary cooler and the secondary cooler respectively, the hydrogen is dehumidified twice, thereby improving the dehumidification effect;

[0045] The present application adopts a two-stage unique structure cooler series combination design, and the two coolings are performed uninterruptedly, providing a simple and efficient hydrogen cooling and dehumidification drying device, which effectively solves the problem of low efficiency and unsustainable operation caused by relying on air cooling in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a schematic diagram of the overall composition of Embodiment 1 of the present application;

[0047] Figure 2 This is a schematic diagram of the overall composition of the second embodiment of the present application;

[0048] Figure 3 This is a schematic diagram of the structure of the first and second stage coolers in this application;

[0049] Figure 4 It is a structural schematic diagram of the second secondary cooler in this application;

[0050] Figure 5 This is a schematic diagram of the overall composition of Embodiment 3 of the present application;

[0051] Figure 6 This is a schematic diagram of the structure of the third and second level cooler in this application;

[0052] Figure 7 This is a schematic diagram of the connection between the four second and secondary cooling pipes and the mounting plate in this application;

[0053] Figure 8 This is a schematic diagram of the connection between more than 4 second and secondary cooling pipes and the mounting plate in this application;

[0054] Fig. 9 It is a schematic diagram of the end surface structure of the sealing disk in this application.

[0055] List of parts and reference numerals:

[0056] 1. Primary cooler; 11. Primary cooling sealed shell; 12. Primary cooling pipeline; 13. First gas-water separator; 14. First non-return valve; 15. Hydrogen pump; 2. First and second coolers; 21. Secondary cooling sealed shell; 22. First and second cooling pipelines; 23. Second gas-water separator; 24. Second non-return valve; 3. Cold water tank; 31. First water pump; 32. Second water pump; 4. Recovery device; 5. Second and second coolers; 51. Second and second cooling sealed shell; 52. Second and second cooling pipelines inlet; 53, second and second cooling pipelines; 54, output ends of second and second cooling pipelines; 55, third cold inlet; 56, third hot outlet; 57, first air outlet; 58, first air inlet; 59, mounting plate; 6, third and third stage cooler; 60, second air inlet; 61, third and third stage cooling sealed shell; 62, condensate drain outlet; 63, sealing plate; 64, first baffle; 65, delivery pipeline; 66, second baffle; 67, fourth cold inlet; 68, fourth hot outlet; 69, second air outlet. DETAILED DESCRIPTION

[0057] The present application is described in detail below with reference to embodiments, but the present application is not limited to these embodiments.

[0058] According to the attached Figure 1-9 A composite hydrogen cooling device shown includes a primary cooler 1, a first gas-water separator, a secondary cooler, and a second gas-water separator 23 which are sequentially arranged along the hydrogen gas flow direction;

[0059] The air inlet end of the primary cooler 1 is connected to a hydrogen gas source containing moisture. The hydrogen gas source containing moisture enters the primary cooler 1 for the first cooling, then enters the first gas-water separator for the first gas-water separation, then enters the secondary cooler for the second cooling, and finally enters the second gas-water separator 23 for the second gas-water separation. The hydrogen gas flows to the user end;

[0060] The cold inlet ends of the primary cooler 1 and the secondary cooler are respectively connected to a cold source. In order to control the cold source feed amount of the primary cooler 1 and the secondary cooler, a water pump is respectively provided at the cold inlet ends of the primary cooler 1 and the secondary cooler;

[0061] In order to recover the hot water after heat exchange in the primary cooler 1 and the secondary cooler, the present application provides a recovery device 4 at the heat outlet end of the primary cooler 1 and the secondary cooler;

[0062] In order to avoid the reverse flow of hydrogen after the first gas-water separation and the second gas-water separation, the present application is provided with a first one-way valve 14 between the output end of the first gas-water separator and the second cooler, and a second one-way valve 24 is provided at the output end of the second gas-water separator 23;

[0063] In order to control the intake amount of the water-containing hydrogen gas source of the device, the present application is provided with a hydrogen pump 15 at the input end of the primary cooler 1, and the intake amount of the water-containing hydrogen gas entering the primary cooler 1 is controlled by the hydrogen pump 15;

[0064] In the present application, each component is connected by a pipeline, specifically: the input end of the primary cooler 1 is connected to the hydrogen pump 15, the output end of the primary cooler 1 is connected to the input end of the first gas-water separator, the output end of the first gas-water separator is connected to the input end of the secondary cooler, the output end of the secondary cooler is connected to the second gas-water separator 23, the cold inlet end of the primary cooler 1 and the cold inlet end of the secondary cooler are respectively connected to the output end of each water pump, between the input end of the water pump and the cold source, and the heat outlet end of the primary cooler 1 and the heat outlet end of the secondary cooler are respectively connected to the recovery device, which are respectively connected by pipelines.

[0065] The first one-way valve 14 is installed on the delivery pipeline 65 between the first gas-water separator and the secondary cooler, and the second one-way valve 24 is installed on the output pipeline of the second gas-water separator.

[0066] In the present application, the cooling of the entire device is water cooling, that is, the cooling source is cold water, wherein the cold water is stored in a cold water tank 3;

[0067] The recovery device 4 is a recovery water tank.

[0068] Furthermore, the second cooler includes any one of a first secondary cooler 2 , a second secondary cooler 5 , and a third tertiary cooler 6 .

[0069] Embodiment 1

[0070] The primary cooler 1 comprises a primary cooling sealed shell 11 and a primary cooling pipeline 12 arranged in the primary cooling sealed shell 11. The primary cooling sealed shell 11 is a hollow cylindrical structure as a whole, and the primary cooling sealed shell 11 is placed vertically.

[0071] The primary cooling pipeline 12 is arranged around S in the primary cooling sealed shell 11 along the vertical direction (i.e., the axial direction) of the primary cooling sealed shell 11, and the input end of the primary cooling pipeline 12 extends from the top of the primary cooling sealed shell 11 to the side facing away from the first gas-water separator, and the input end of the primary cooling pipeline 12 is connected to the output end of the hydrogen pump 15 through a pipeline, and the water-containing hydrogen is pumped into the primary cooler 1 through the hydrogen pump 15; the output end of the primary cooling pipeline 12 extends from the bottom of the primary cooling sealed shell 11 to the side of the first gas-water separator, and the output end of the primary cooling pipeline 12 is connected to the input end of the first gas-water separator through a pipeline;

[0072] A first cold inlet end is provided at the top of the primary cooling sealed shell 11, and the first cold inlet end is connected to the output end of the first water pump 31 through a pipeline; the first water pump 31 pumps a cold source into the primary cooling sealed shell 11 to cool the water-containing hydrogen in the primary cooling pipeline 12 located in the primary cooling sealed shell 11;

[0073] A first heat outlet is provided at the bottom of the primary cooling sealed shell 11 , and the first heat outlet is connected to an input end of the recovery device 4 through a pipeline.

[0074] The first secondary cooler comprises a first secondary cooling sealed housing and a first secondary cooling pipeline 22;

[0075] The first and second cooling sealed shell is a hollow structure placed vertically, a second cold inlet end is arranged at the top of the first and second cooling sealed shell, and a second heat outlet end is arranged at the bottom of the first and second cooling sealed shell; wherein the second heat outlet end is located directly below the second cold inlet end, and the second cold inlet end is connected to the output end of the second water pump 32 through a pipeline, and cooling water is pumped from the top of the first and second cooling sealed shell into the first and second cooling sealed shell through the second water pump 32, and then after heat exchange through the first and second cooling pipelines 22, the hot water is discharged from the first output end into the recovery device 4;

[0076] The first and second cooling pipeline 22 is arranged around S in the horizontal direction inside the first and second sealing shell, the input end of the first and second cooling pipeline 22 extends from one side of the top of the first and second cooling sealing shell, and is connected to the output end of the first gas-water separator, the output end of the first and second cooling pipeline 22 extends from the bottom of the first and second cooling sealing shell, on the side opposite to the input end of the first and second cooling pipeline 22, and is connected to the input end of the second gas-water separator 23.

[0077] As attached Figure 1 As shown, the implementation process of dry hydrogen production in this embodiment is: first start the hydrogen pump 15, and pump humid hydrogen into the hydrogen pipelines of the primary cooler 1 and the secondary cooler through the hydrogen pump 15, and at the same time turn on the first water pump 31 and the second water pump 32 to pass cooling water into the primary cooler 1 and the secondary cooler to cool the hydrogen flowing through the cooling pipelines in the first cooling sealed shell and the first and second cooling sealed shells. When the water-containing hydrogen flows through the primary cooler 1, the cold water flowing into the primary cooling sealed shell from top to bottom cools the water-containing hydrogen in the primary cooling pipeline 12 through heat exchange with the pipe wall of the primary cooling pipeline 12, and then passes through the primary gas-water separator for the first water vapor separation, and then flows into the secondary cooler through the first one-way valve 14; in the second secondary cooling sealed shell 51 of the secondary cooler, the cold water from top to bottom exchanges heat with the pipe wall of the first and second cooling pipelines 22 arranged in an S shape around the radiator (hydrogen pipeline), and further cools the hydrogen in the first and second cooling pipelines 22, and then the hydrogen after secondary cooling enters the second gas-water separator 23, and after the second gas-water separation in the secondary gas-water separator, it flows out of the composite cooler system through the secondary one-way valve to the user end.

[0078] Embodiment 2

[0079] The second secondary cooler 5 comprises a second secondary cooling sealed shell 51 and a second secondary cooling pipeline 53 located in the second secondary cooling sealed shell 51;

[0080] The second secondary cooling sealed shell 51 is a vertically placed cylindrical structure, and the top and bottom opposite sides of the second secondary cooling sealed shell 51 are respectively provided with a third cold inlet end 55 and a third

[0081] At the heat outlet end, a first air inlet end 58 is disposed at the top of the second secondary cooling sealed shell 51, and a first air outlet end 57 is disposed at the bottom of the second secondary cooling sealed shell 51;

[0082] The first air outlet end 57 is located directly below the first air inlet end 58;

[0083] The third cold inlet end 55 is connected to a cold source, and the third heat outlet end 56 is connected to a recovery device 4;

[0084] The second secondary cooling pipeline 53 is located in the second secondary sealed housing, and the second secondary cooling pipeline 53 is provided with a plurality of channels, and the input ends 52 and output ends of the plurality of second secondary cooling pipelines are respectively oriented toward the first air inlet end 58 and the first air outlet end 57;

[0085] The input end 52 and output end of several second-level cooling pipelines are arranged in a ring shape along the inner wall of the second-level cooling sealed shell 51, the input end 52 of the second-level cooling pipeline is fixed on the inner wall of the second-level cooling sealed shell 51 near the top, and the output end of the second-level cooling pipeline 53 is fixed on the inner wall of the second-level cooling sealed shell 51 near the bottom.

[0086] The first air inlet end 58 is connected to the output end of the first air-water separator through a pipeline; the first air outlet end 57 is connected to the input end of the second air-water separator 23 through a pipeline.

[0087] The input end 52 of the second secondary cooling pipeline is located between the first air inlet end 58 and the third cold inlet end 55, and the output end 54 of the second secondary cooling pipeline is located between the first air outlet end 57 and the third heat outlet end 56. The third cold inlet end 55 is connected to the output end of the water pump through a pipeline, and the third heat outlet end 56 is connected to the recovery device 4 through a pipeline;

[0088] Furthermore, the second-level cooling pipes 53 are all spiral pipes, and a plurality of the second-level cooling pipes are closely arranged in parallel to form a cylindrical spiral pipe body structure.

[0089] In the present application, the connection between the second secondary cooling pipeline and the second secondary sealed cooling shell is realized through a mounting plate 59. The input end and the output end of the second secondary cooling pipeline are respectively provided with mounting plates 59. The mounting plates 59 are circular plate-shaped structures. The mounting plates 59 are respectively located between the first air inlet end 58 and the third cold inlet end 55, and above the first air outlet end 57. The diameter of the mounting plates 59 matches the inner diameter of the second secondary cooling sealed shell 51. The mounting plates 59 are respectively fixed to the inner wall of the second secondary cooling sealed shell 51.

[0090] The input end and the output end of the second secondary cooling pipeline extend out of the mounting plate 59 respectively, and are connected to the first air inlet end and the first air outlet end respectively. The input end and the output end of the second secondary cooling pipeline are connected to the mounting plate respectively.

[0091] In the present application, the number of the second and second cooling pipelines 53 is determined according to the actual workload. In the present embodiment, the second and second cooling pipelines 53 are set to 4 or more, and the end surface diagrams of the second and second cooling pipelines 53 connected to the mounting plate 59 are shown in the attached diagrams. Figure 7 and attached Figure 8 .

[0092] See attached Figure 2 The process of dry hydrogen production in this embodiment is as follows: first, the hydrogen pump 15 is started to pump humid hydrogen into the primary cooling pipeline 12 and the second secondary cooling pipeline 53 of the primary cooler 1 and the secondary cooler, and at the same time, the first water pump 31 and the second water pump 32 are turned on to respectively supply cold water to the primary cooler 1 and the secondary cooler to cool the hydrogen in the primary cooling pipeline 12 and the second secondary cooling pipeline 53 flowing through the primary cooling sealed shell 11 and the second secondary cooling sealed shell 51. When the hydrogen gas flows through the primary cooler 1, the cold water flowing into the primary cooling sealed shell 11 from top to bottom is cooled for the first time by heat exchange with the tube wall of the primary cooling pipeline 12, and then passes through the first gas-water separator for the first water-gas separation, and then flows into the secondary cooler through the first one-way valve 14; in the second cooling sealed shell of the secondary cooler, the water-containing hydrogen in the second secondary cooling pipeline 53 is further cooled for the second time by heat exchange between the cold water from top to bottom and the tube walls of four spiral circular tubes (i.e., the second and secondary cooling pipelines 53, in this embodiment, four second and secondary cooling pipelines 53 are provided), and the hydrogen after the secondary cooling finally passes through the second gas-water separator for the second gas-water separation, and then flows out of the composite cooler system through the second one-way valve 24 to the user end.

[0093] Embodiment 3

[0094] The third secondary cooler comprises a third secondary cooling sealed housing and a third secondary sealed pipeline;

[0095] The third and second level cooling sealed shell is a horizontally placed cylindrical structure, and the two ends of the third and second level sealed shell are respectively facing the first gas-water separator and the second gas-water separator 23;

[0096] A second air inlet end is provided at the top of one end of the third secondary cooling sealed housing facing the first air-water separator, and the second air inlet end is connected to the output end of the first air-water separator through a pipeline;

[0097] A condensate drain port 62 is disposed at the bottom of the third secondary cooling sealed shell. The condensate drain port 62 includes a first condensate drain port and a second condensate drain port.

[0098] The bottom of the third secondary cooling sealed housing facing the first gas-water separator is provided with a first condensed water drain port and a fourth heat outlet;

[0099] The top of the third secondary cooling sealed housing at one end facing away from the first gas-water separator is provided with a fourth cold inlet end and a second gas outlet end 69, the second gas outlet end 69 is located on the side of the fourth cold inlet end facing the first gas-water separator, and the second gas outlet end 69 is connected to the input end of the second gas-water separator through a pipeline;

[0100] The fourth cold inlet end is connected to the output end of the second water pump 32 through a pipeline, the fourth heat outlet end 68 is located between the first condensate drain port and the second condensate drain port, and the fourth heat outlet end 68 is connected to the recovery device 4 through a pipeline.

[0101] A second condensate drain port is provided at the bottom of the end of the third secondary cooling sealed housing facing away from the first gas-water separator 13, and the second condensate drain port is located directly below the second gas outlet 69;

[0102] The first condensate water drain port and the second condensate water drain port are respectively installed with switch valves.

[0103] The third secondary sealed pipeline includes a plurality of delivery pipelines 65 and a plurality of baffles arranged in the third secondary cooling sealed housing;

[0104] A plurality of delivery pipelines 65 are arranged in parallel along the axial direction of the third secondary cooling sealed shell, and the plurality of delivery pipelines 65 are arranged at intervals. The input end of the delivery pipeline 65 is located between the second air inlet end and the fourth heat outlet end, and the output end of the delivery pipeline 65 is located between the fourth cold inlet end and the second air outlet end 69. The second air inlet end 60 and the second air outlet end 69 are each provided with a sealing disk 63.

[0105] In this embodiment, the sealing disk 63 is a disk-shaped structure, and the cross-sectional dimensions of the sealing disk 63 match the cross-sectional dimensions of the inner wall of the third and second cooling sealed shells; the sealing disks 63 are respectively vertically installed in the third and second cooling sealed shells; the sealing disks 63 and the parts of the two ends of the third and second cooling sealed shells respectively form an air inlet cavity and an air outlet cavity;

[0106] The input ends and output ends of the plurality of delivery pipelines 65 are connected to the air inlet cavity and the air outlet cavity through the corresponding sealing disk 63, and the input ends and output ends of the plurality of delivery pipelines 65 are connected to the sealing disk 63, respectively. The end face schematic diagram of the sealing disk 63 is shown in the attached figure. Fig. 9 shown.

[0107] The baffle plate includes a first baffle plate 64 and a second baffle plate 66 which are vertically arranged, and the first baffle plate 64 and the second baffle plate 66 are arranged alternately;

[0108] The top end of the first baffle plate 64 is fixedly mounted on the inner wall of the top of the third secondary cooling sealed shell, and a gap is set between the bottom end of the first baffle plate 64 and the inner wall of the bottom of the third secondary cooling sealed shell;

[0109] A gap is set between the top of the second baffle plate 66 and the inner wall of the top of the third secondary cooling sealed shell, and the bottom of the second baffle plate 66 is installed on the inner wall of the bottom of the third secondary cooling sealed shell;

[0110] The gap formed by the bottom end of the first baffle plate and the inner wall of the bottom of the third secondary cooling sealed shell, and the gap formed by the top end of the second baffle plate 66 and the inner wall of the top of the third secondary cooling sealed shell form a cooling water flow channel.

[0111] See attached Figure 5The process of dry hydrogen production in this embodiment is as follows: first, the hydrogen pump 15 is started to pump the humid hydrogen into the hydrogen pipelines of the primary cooler 1 and the secondary cooler, and at the same time, the first water pump 31 and the second water pump 32 are turned on to pass cold water into the primary cooler 1 and the secondary cooler, and the water-containing hydrogen flowing through the first cooling sealed shell and the third cooling sealed shell is cooled respectively. Specifically, when the water-containing hydrogen flows through the primary cooler 1, the cold water flowing into the primary sealed shell from top to bottom is cooled by heat exchange with the pipe wall of the primary cooling pipeline 12, and then passes through the first gas-water separator through After the first water-gas separation, it flows into the secondary cooler through the first one-way valve 14; in the third-level sealed shell of the secondary cooler, cold water flows from top to bottom through the 'S'-shaped drainage channel formed by the first baffle plate and the second baffle plate 66, and exchanges heat with the pipe walls of several (multiple) conveying pipelines 65, so as to further cool the hydrogen in the third-level cooling pipeline. After the secondary cooling, the hydrogen passes through the second gas-water separator 23 for the second steam-water separation, and finally flows out of the composite cooler system through the second one-way valve 24 to the user end.

[0112] The present application adopts a two-stage unique structure cooler series combination design, and the two coolings are performed uninterruptedly, providing a simple and efficient hydrogen cooling and dehumidification drying device, which effectively solves the problem of low efficiency and unsustainable operation caused by relying on air cooling in the prior art.

[0113] The present application is suitable for supporting medium and large-scale hydrogen production equipment, especially hydrolysis hydrogen production equipment, for dehumidifying and drying hydrogen containing water and moisture. The present invention is suitable for engineering application equipment, and continuously dries and dehumidifies the wet hydrogen produced in large quantities, and has the beneficial effects of simple structure, economic reliability, high efficiency, and continuous dehumidification and drying of hydrogen. The present invention can also be applied to the dehumidification and drying of other gases.

[0114] The above are only a few embodiments of the present application and do not constitute any form of limitation to the present application. Although the present application is disclosed as above with preferred embodiments, it is not intended to limit the present application. Any technician familiar with the profession, without departing from the scope of the technical solution of the present application, using the technical content disclosed above to make slight changes or modifications are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A composite hydrogen cooling device, characterized in that: It comprises a primary cooler, a first gas-water separator, a secondary cooler, and a second gas-water separator which are sequentially arranged along the hydrogen gas flow direction; The air inlet end of the primary cooler is connected to a hydrogen gas source containing moisture, the hydrogen gas source containing moisture enters the primary cooler for a first cooling, then enters the first gas-water separator for a first gas-water separation, then enters the secondary cooler for a second cooling, and finally enters the second gas-water separator for a second gas-water separation, and the hydrogen gas flows to the user end; The cold inlet ends of the primary cooler and the secondary cooler are respectively connected to a cooling source, and the heat outlet ends of the primary cooler and the secondary cooler are provided with recovery devices and are respectively connected to the recovery devices; The input end of the first gas-water separator is connected to the gas outlet end of the first cooler, and the output end of the first gas-water separator is connected to the gas inlet end of the second cooler; The input end of the second gas-water separator is connected to the gas outlet end of the secondary cooler.

2. A composite hydrogen cooling device according to claim 1, characterized in that: The primary cooler comprises a primary cooling sealed shell and a primary cooling pipeline arranged in the primary cooling sealed shell; The primary cooling pipeline is arranged around S in the primary cooling sealed shell along the vertical direction of the primary cooling sealed shell, the input end of the primary cooling pipeline extends from one side of the top of the primary cooling sealed shell and is connected to the hydrogen gas source containing moisture, and the output end of the primary cooling pipeline extends from one side of the bottom of the primary cooling sealed shell and is connected to the input end of the first gas-water separator; The top of the primary cooling sealed shell is provided with a first cold inlet end, and the bottom of the primary cooling sealed shell is provided with a first hot outlet end; The first cold inlet end is connected to a cooling source; The first heat outlet end is connected to the recovery device.

3. A composite hydrogen cooling device according to claim 1, characterized in that: The secondary cooler includes any one of a first secondary cooler, a second secondary cooler, and a third secondary cooler.

4. A composite hydrogen cooling device according to claim 3, characterized in that: The first and second level cooler comprises a first and second level cooling sealed housing and a first and second level cooling pipeline; A second cold inlet is provided on the top of the first and second cooling sealed shell, the second cold inlet is connected to a cold source, and a second hot outlet is provided on the bottom of the first and second cooling sealed shell; The first and second cooling pipelines are arranged around S in the horizontal direction, the input end of the first and second cooling pipelines extends from one side of the top of the first and second cooling sealed shells, and is connected to the output end of the first gas-water separator, and the output end of the first and second cooling pipelines extends from the bottom of the first and second cooling sealed shells, on the side opposite to the input end of the first and second cooling pipelines, and is connected to the input end of the second gas-water separator.

5. A composite hydrogen cooling device according to claim 3, characterized in that: The second secondary cooler comprises a second secondary cooling sealed housing and a second secondary cooling pipeline; A third cold inlet end and a third hot outlet end are respectively arranged on opposite sides of the top and bottom of the second secondary cooling sealed shell, a first air inlet end is arranged on the top of the second secondary cooling sealed shell, and a first air outlet end is arranged on the bottom of the second secondary cooling sealed shell; The third cold inlet end is connected to a cold source, and the third heat outlet end is connected to a recovery device; The second secondary cooling pipeline is located in the second secondary sealed housing, and the second secondary cooling pipeline is provided with a plurality of channels, and the input ends and output ends of the plurality of channels of the second secondary cooling pipeline are respectively oriented toward the first air inlet end and the first air outlet end; The output end of the second secondary cooling pipeline is located below the heat output end.

6. A composite hydrogen cooling device according to claim 5, characterized in that: The second-level cooling pipes are all spiral pipes, and a plurality of the second-level cooling pipes are closely arranged in parallel to form a cylindrical spiral pipe body structure.

7. The composite hydrogen cooling device according to claim 3, characterized in that: The third secondary cooler comprises a third secondary cooling sealed housing and a third secondary sealed pipeline; The third and second level cooling sealed shell is a horizontally placed cylindrical structure, a second air inlet end is arranged at the top of one end of the third and second level sealed shell facing the first air-water separator, a fourth heat outlet end is arranged at the bottom of one end of the third and second level sealed shell facing the first air-water separator, and a fourth cold inlet end and a second air outlet end are arranged at the top of one end of the third and second level sealed shell away from the first air-water separator; The third and second level sealed pipeline includes a plurality of delivery pipelines and a plurality of baffles arranged in the third and second level cooling sealed housing; A plurality of delivery pipelines are arranged in parallel along the axial direction of the third secondary cooling sealed shell, the input end of the delivery pipeline is located between the second air inlet end and the fourth heat outlet end, the output end of the delivery pipeline is located between the fourth cold inlet end and the second air outlet end, and the input end and the output end of the delivery pipeline are respectively provided with sealing disks; The sealing disks are respectively vertically installed in the third and second cooling sealed shells, and form an air inlet cavity and an air outlet cavity with the two ends of the third and second cooling sealed shells respectively; The input end and the output end of the conveying pipeline are respectively connected to the air inlet cavity and the air outlet cavity through the sealing disk; The baffle plate comprises a first baffle plate and a second baffle plate which are arranged vertically, and the first baffle plate and the second baffle plate are arranged at intervals; The top end of the first baffle is mounted on the inner wall of the top of the third secondary cooling sealed shell, and a gap is set between the bottom end of the first baffle and the inner wall of the bottom of the third secondary cooling sealed shell; A gap is set between the top of the second baffle plate and the inner wall of the top of the third secondary cooling sealed shell, and the bottom of the second baffle plate is installed on the inner wall of the bottom of the third secondary cooling sealed shell; The gap formed by the bottom end of the first baffle plate and the inner wall of the bottom of the third secondary cooling sealed shell, and the gap formed by the top end of the second baffle plate and the inner wall of the top of the third secondary cooling sealed shell form a cooling water flow channel.

8. A composite hydrogen cooling device according to claim 7, characterized in that: Condensate drain ports are respectively provided at the bottoms of both ends of the third and second-level cooling sealed housing; The condensed water drainage outlets are respectively located at the bottom of the air inlet cavity and the air outlet cavity, and are respectively located directly below the fourth cold inlet end and the fourth hot outlet end.

9. The composite hydrogen cooling device according to claim 1, characterized in that: A first one-way valve is provided between the first gas-water separator and the input end of the secondary cooler; A second one-way valve is provided at the output end of the second gas-water separator.

10. The composite hydrogen cooling device according to claim 1, characterized in that: The cold inlet ends of the primary cooler and the secondary cooler are respectively provided with water pumps; The input end of the water pump is connected to a cold water tank, and the output end of the water pump is connected to the cold inlet ends of the primary cooler and the secondary cooler respectively; The input end of the primary cooler is provided with a hydrogen pump; The input end of the hydrogen pump is connected to the source of the water-containing hydrogen, and the output end of the hydrogen pump is connected to the input end of the primary cooler.

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