Hydrogen heat exchanger for hydrogen fuel cell

Abstract

The utility model discloses a hydrogen heat exchanger for a hydrogen fuel cell, which comprises a heat exchange tank, the top of the heat exchange tank is communicated with a first gas inlet pipe and a second gas inlet pipe, the bottom of the heat exchange tank is communicated with a first gas outlet pipe and a second gas outlet pipe, and the first gas inlet pipe, the second gas inlet pipe, the first gas outlet pipe and the second gas outlet pipe are respectively provided with a pipe joint. Circular rings are installed on pipe joints of the first air inlet pipe and the second air inlet pipe, filter screens are installed in the circular rings, installation blocks are fixed to the two sides of each circular ring, two square grooves are formed in each pipe joint, and the two installation blocks are placed in the square grooves. According to the hydrogen heat exchanger for the hydrogen fuel cell, through the arrangement of the circular ring, the filter screen and the mounting block, the filter screen can be arranged on the pipe joint, dust and impurities in gas are filtered out, the purity of the gas is improved, through the arrangement of the rapid clamping mechanism, rapid disassembly and replacement of the filter screen are achieved, and cleaning is convenient after the filter screen is disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a hydrogen heat exchanger for a hydrogen fuel cell. Background Art

[0002] The development of hydrogen energy will inevitably require a matching intercooler or heat exchanger, and fuel cell-specific heat exchangers are produced for this purpose.

[0003] Referring to the Chinese patent, a new type of hydrogen heat exchanger for hydrogen fuel cells (publication number: CN217507400U, publication date: 2022-09-27) solves the problem that the existing heat exchangers for fuel cells are large in size, so the weight is correspondingly large, and they are relatively bulky, and adopt a cross-flow arrangement, that is, the baffles are installed at intervals to make the flow channel flow in a serpentine shape. The cross-flow arrangement of the conventional heat exchanger requires temperature correction, and the correction coefficient is between 0.8 and 1, which is not conducive to use. However, the existing hydrogen heat exchanger is not convenient to clean up the dust and impurities in the gas, which reduces the purity of the gas. In this regard, we propose a hydrogen heat exchanger for hydrogen fuel cells to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a hydrogen heat exchanger for a hydrogen fuel cell, which solves the problems raised in the background technology.

[0005] To achieve the above purpose, the utility model is implemented through the following technical scheme: a hydrogen heat exchanger for a hydrogen fuel cell, including a heat exchange tank, the top of the heat exchange tank is connected with an air inlet pipe 1 and an air inlet pipe 2, the bottom of the heat exchange tank is connected with an air outlet pipe 1 and an air outlet pipe 2, the air inlet pipe 1, the air inlet pipe 2, the air outlet pipe 1 and the air outlet pipe 2 are all installed with pipe joints, the pipe joints of the air inlet pipe 1 and the air inlet pipe 2 are all installed with circular rings, the inside of the circular rings is installed with filter screens, mounting blocks are fixed on both sides of the circular rings, two square grooves are opened on the pipe joints, and the two mounting blocks are placed inside the square grooves.

[0006] Preferably, a quick clamping mechanism is provided between the two mounting blocks and the pipe joint, the quick clamping mechanism comprises a slide groove provided on the top of the pipe joint, and a transverse groove is provided inside the pipe joint.

[0007] Preferably, the transverse groove is connected to the slide groove, a slot is provided on one side of the mounting block, an insertion rod is slidably connected to the inner surface of the transverse groove, a vertical rod is fixed to the top of the insertion rod, and the top end of the vertical rod passes through the slide groove and extends to the outside of the slide groove.

[0008] Preferably, the outer surface of the vertical rod is slidably connected to the inner surface of the slide groove, a cross rod is fixed to one side of the inner wall of the horizontal groove, one end of the cross rod passes through one side of the insertion rod and extends to the inside of the insertion rod, and the outer surface of the cross rod is slidably connected to the inner surface of the insertion rod.

[0009] Preferably, a spring is sleeved on the outer surface of the cross bar, one end of the spring is fixed to the inner wall of the cross groove, the other end of the spring is fixed to one end of the insertion rod, and one end of the insertion rod passes through the cross groove and extends to the inside of the slot.

[0010] Preferably, two supports are fixed to the bottom of the heat exchange tank, and buffer and anti-skid pads are fixed to the bottoms of the two supports.

[0011] Beneficial Effects

[0012] The utility model provides a hydrogen heat exchanger for a hydrogen fuel cell. Compared with the prior art, it has the following beneficial effects:

[0013] (1) The hydrogen heat exchanger for the hydrogen fuel cell can be provided with a filter on a pipe joint by means of the arrangement of a ring, a filter and a mounting block, so as to filter out dust and impurities in the gas and improve the purity of the gas. The filter can be quickly disassembled and replaced by means of a quick clamping mechanism, so that it is convenient to clean the filter after it is removed.

[0014] (2) The hydrogen heat exchanger for the hydrogen fuel cell can increase the friction between the support and the ground or table by setting the buffer anti-skid pad to prevent the heat exchanger from sliding. At the same time, when the heat exchanger vibrates during operation, the support can also be effectively buffered and protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the external structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the pipe joint of the utility model;

[0017] Figure 3 For this utility model Figure 2 A partial enlarged view of the middle A;

[0018] Figure 4 This is a diagram of the support and the buffer anti-skid pad of the utility model in a separated state.

[0019] In the figure: 1. heat exchange tank; 2. air inlet pipe 1; 3. air inlet pipe 2; 4. air outlet pipe 1; 5. air outlet pipe 2; 6. pipe joint; 7. ring; 8. filter; 9. mounting block; 10. square groove; 11. quick clamping mechanism; 12. support; 13. buffer anti-skid pad; 111. slide groove; 112. horizontal groove; 113. slot; 114. plug rod; 115. vertical rod; 116. horizontal rod; 117. spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The utility model provides two technical solutions: specifically including the following embodiments:

[0022] Example 1

[0023] See also Figure 1 and Figure 4 A hydrogen heat exchanger for a hydrogen fuel cell comprises a heat exchange tank 1, the top of the heat exchange tank 1 is connected with an air inlet pipe 1 2 and an air inlet pipe 2 3, hydrogen enters the heat exchange tank 1 from the air inlet pipe 1 2, and heat exchange gas enters the heat exchange tank 1 from the air inlet pipe 2 3, the bottom of the heat exchange tank 1 is connected with an air outlet pipe 1 4 and an air outlet pipe 2 5, hydrogen is discharged from the air outlet pipe 1 4, and heat exchange gas is discharged from the air outlet pipe 2 5, the air inlet pipe 1 2, the air inlet pipe 2 3, the air outlet pipe 1 4 and the air outlet pipe 2 5 are connected. A pipe joint 6 is installed on each of them. A circular ring 7 is installed on the pipe joints 6 of the air inlet pipe 1 2 and the air inlet pipe 2 3. A filter screen 8 is installed inside the circular ring 7. The filter screen 8 is welded inside the circular ring 7. The setting of the filter screen 8 can filter out dust and impurities in the gas, thereby improving the purity of the gas. Mounting blocks 9 are fixed on both sides of the circular ring 7. Two square grooves 10 are provided on the pipe joint 6. The two mounting blocks 9 are placed inside the square grooves 10. The sizes of the mounting blocks 9 and the square grooves 10 are adapted to each other.

[0024] Two supports 12 are fixed to the bottom of the heat exchange tank 1, and buffer and anti-skid pads 13 are fixed to the bottom of the two supports 12. The buffer and anti-skid pads 13 can increase the friction between the supports 12 and the ground or table to prevent the heat exchanger from sliding. At the same time, when the heat exchanger vibrates during operation, the supports can also be effectively buffered and protected.

[0025] Example 2

[0026] Based on Example 1, see Figure 2 - Figure 3 As shown, a quick clamping mechanism 11 is provided between the two mounting blocks 9 and the pipe joint 6 . The quick clamping mechanism 11 includes a slide groove 111 provided on the top of the pipe joint 6 , and a transverse groove 112 is provided inside the pipe joint 6 .

[0027] The transverse groove 112 is connected to the slide groove 111, and a slot 113 is opened on one side of the mounting block 9. The inner surface of the transverse groove 112 is slidably connected with an insertion rod 114, and a vertical rod 115 is fixed to the top of the insertion rod 114. The top of the vertical rod 115 passes through the slide groove 111 and extends to the outside of the slide groove 111.

[0028] The outer surface of the vertical rod 115 is slidably connected to the inner surface of the slide groove 111, and a cross rod 116 is fixed to one side of the inner wall of the horizontal groove 112. One end of the cross rod 116 passes through one side of the insertion rod 114 and extends to the inside of the insertion rod 114. The outer surface of the cross rod 116 is slidably connected to the inner surface of the insertion rod 114.

[0029] A spring 117 is sleeved on the outer surface of the cross bar 116, one end of the spring 117 is fixed to the inner wall of the cross groove 112, and the other end of the spring 117 is fixed to one end of the plug rod 114. One end of the plug rod 114 passes through the cross groove 112 and extends to the inside of the slot 113. One end of the plug rod 114 is set as an inclined surface, and the bottom of the mounting block 9 contacts and squeezes the inclined surface of the plug rod 114. When the mounting block 9 moves downward, the plug rod 114 can be squeezed to move into the cross groove 112. Through the setting of the quick clamping mechanism 11, the filter screen 8 can be quickly disassembled and replaced, which is convenient for cleaning after the filter screen 8 is removed.

[0030] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0031] During operation, the two mounting blocks 9 are placed into the square groove 10, and the mounting block 9 is further pressed downward, so that the mounting block 9 drives the insertion rod 114 to slide into the inside of the horizontal groove 112, and the insertion rod 114 drives the spring 117 to be compressed. When the slot 113 is docked with the insertion rod 114, the spring 117 is reset, and at the same time, the spring 117 drives the insertion rod 114 to be pushed into the slot 113, thereby installing the filter 8. When the filter 8 needs to be removed for cleaning, the two vertical rods 115 are pulled, so that the vertical rod 115 drives the insertion rod 114 to slide into the inside of the horizontal groove 112, and further makes the insertion rod 114 slide out of the slot 113, and the mounting block 9 can be further picked up to realize disassembly.

[0032] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A hydrogen heat exchanger for a hydrogen fuel cell, comprising a heat exchange tank (1), characterized in that: The top of the heat exchange tank (1) is connected to an air inlet pipe 1 (2) and an air inlet pipe 2 (3), and the bottom of the heat exchange tank (1) is connected to an air outlet pipe 1 (4) and an air outlet pipe 2 (5). Pipe joints (6) are installed on the air inlet pipe 1 (2), the air inlet pipe 2 (3), the air outlet pipe 1 (4) and the air outlet pipe 2 (5). A circular ring (7) is installed on the pipe joints (6) of the air inlet pipe 1 (2) and the air inlet pipe 2 (3). A filter screen (8) is installed inside the circular ring (7). Mounting blocks (9) are fixed on both sides of the circular ring (7). Two square grooves (10) are provided on the pipe joint (6), and the two mounting blocks (9) are placed inside the square grooves (10).

2. A hydrogen heat exchanger for a hydrogen fuel cell according to claim 1, characterized in that: A quick clamping mechanism (11) is provided between the two mounting blocks (9) and the pipe joint (6), the quick clamping mechanism (11) comprising a slide groove (111) provided on the top of the pipe joint (6), and a transverse groove (112) is provided inside the pipe joint (6).

3. A hydrogen heat exchanger for a hydrogen fuel cell according to claim 2, characterized in that: The transverse groove (112) is connected to the slide groove (111), a slot (113) is provided on one side of the mounting block (9), an insertion rod (114) is slidably connected to the inner surface of the transverse groove (112), a vertical rod (115) is fixed to the top of the insertion rod (114), and the top end of the vertical rod (115) passes through the slide groove (111) and extends to the outside of the slide groove (111).

4. A hydrogen heat exchanger for a hydrogen fuel cell according to claim 3, characterized in that: The outer surface of the vertical rod (115) is slidably connected to the inner surface of the slide groove (111), and a cross rod (116) is fixed to one side of the inner wall of the horizontal groove (112). One end of the cross rod (116) passes through one side of the insertion rod (114) and extends to the inside of the insertion rod (114), and the outer surface of the cross rod (116) is slidably connected to the inner surface of the insertion rod (114).

5. A hydrogen heat exchanger for a hydrogen fuel cell according to claim 4, characterized in that: A spring (117) is sleeved on the outer surface of the cross bar (116), one end of the spring (117) is fixed to the inner wall of the cross groove (112), the other end of the spring (117) is fixed to one end of the insertion rod (114), and one end of the insertion rod (114) passes through the cross groove (112) and extends to the inside of the slot (113).

6. A hydrogen heat exchanger for a hydrogen fuel cell according to claim 1, characterized in that: Two supports (12) are fixed to the bottom of the heat exchange tank (1), and buffer anti-slip pads (13) are fixed to the bottoms of the two supports (12).

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