High-pressure hydrogen cooling heat exchanger of hydrogen fuel cell vehicle

Abstract

The utility model relates to the technical field of hydrogen energy, in particular to a high-pressure hydrogen cooling heat exchanger of a hydrogen fuel cell vehicle, which comprises a main body, the main body comprises a shell, the left side of the front end face of the shell is provided with an inlet opening, the right side of the rear end face of the shell is provided with a discharge opening, and the left sides of the front inner wall and the rear inner wall of the shell are respectively provided with a slot. The inner sides of the groove positions are provided with abutting and fixing parts, the abutting and fixing parts comprise abutting strips, the abutting strips are arranged on the inner sides of middle grooves of the groove positions, the upper sides and the lower sides of the outer planes of the abutting strips are fixedly connected with supporting springs, and the ends, away from the abutting strips, of the supporting springs are fixedly connected with the inner walls of the middle grooves of the groove positions; the left side and the right side of the abutting strip are fixedly connected with side strips, and the ends, away from the abutting strip, of the side strips are fixedly connected with the inner wall of the containing groove of the groove position. According to the cooling heat exchanger, through the main body, the flow equalizing plate, the core part and other structures, the cooling heat exchanger can comprehensively and fully conduct heat exchange and cooling on high-pressure hydrogen.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen energy, in particular to a high-pressure hydrogen cooling heat exchanger for a hydrogen fuel cell vehicle. Background Art

[0002] Compared with traditional cars, hydrogen fuel cell vehicles have the advantages of zero carbon emissions, high energy conversion rate, and good low-temperature adaptability. Strictly speaking, a hydrogen fuel cell is a power generation device. Like a power plant, it is an electrochemical power generation device that directly converts chemical energy into electrical energy. Hydrogen is a gas at room temperature and can become a liquid under ultra-low temperature and high pressure. As an energy source, in order to increase the internal energy of hydrogen and convert it into liquid storage and transportation, so as to subsequently power hydrogen fuel cell vehicles, it is necessary to compress the hydrogen. As the hydrogen pressure continues to increase, the temperature will continue to rise, and the high-pressure hydrogen cooling heat exchanger is to reduce the hydrogen temperature to the temperature range for charging and use.

[0003] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid. Existing heat exchangers are generally shell and tube heat exchangers. This type of heat exchanger uses the cold fluid flowing in each tube body to exchange heat and cool the hot fluid in the outer shell of the tube. However, due to the large spacing between the tube bodies, part of the high-pressure hydrogen may fail to contact the tube body or be far away from the tube body when passing through, and thus fail to participate in the heat exchange, resulting in general heat exchange and cooling efficiency. Therefore, based on the above problems, a high-pressure hydrogen cooling heat exchanger for a hydrogen fuel cell vehicle is proposed. Utility Model Content

[0004] The utility model aims to provide a high-pressure hydrogen cooling heat exchanger for a hydrogen fuel cell vehicle, so as to solve the problem that the existing cooling heat exchanger uses the cold fluid flowing in each tube body to exchange heat and cool the hot fluid in the tube shell. Due to the large spacing between the tube bodies, part of the high-pressure hydrogen may fail to contact the tube body or be far away from the tube body when passing through, and thus fail to participate in heat exchange, resulting in a general heat exchange and cooling efficiency.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high-pressure hydrogen cooling heat exchanger for a hydrogen fuel cell vehicle comprises a main body, the main body comprises a shell, an inlet opening is provided on the left side of the front end face of the shell, a discharge opening is provided on the right side of the rear end face of the shell, slots are provided on the left sides of the front and rear inner walls of the shell, abutting parts are installed on the inner sides of the slots, the abutting parts comprise abutting strips, the abutting strips are arranged on the inner sides of the middle slots of the slots, the upper and lower sides of the outer plane of the abutting strips are fixedly connected with support springs, the ends of the support springs away from the abutting strips are fixedly connected with the inner walls of the middle slots of the slots, the left and right sides of the abutting strips are fixedly connected with side strips, the ends of the side strips away from the abutting strips are fixedly connected with the inner walls of the storage slots of the slots, a limited transmission part is installed on the right side of the interior of the shell, and the abutting part is connected to the limited transmission part A core part located on the inner side of the shell is installed in between, and the core part includes a group of eighteen hot-side heat exchange plates and a group of seventeen cold-side heat exchange plates. A group of hot-side heat exchange plates and a group of cold-side heat exchange plates are staggered and stacked. The hot-side heat exchange plate includes a plate body, and a group of hot-side flow channels arranged in an equidistant manner are opened at the upper end surface of the plate body. The cold-side heat exchange plate includes a plate member, and a group of cold-side flow channels arranged in an equidistant manner are opened at the upper end surface of the plate member. The front side of the shell is fixedly connected with a cold-side inlet shell, and the rear side of the shell is fixedly connected with a cold-side outlet shell, the right side of the shell is fixedly connected with a hot-side inlet shell by bolts, and the left side of the shell is fixedly connected with a hot-side outlet shell by bolts, and the inner sides of the cold-side inlet shell and the hot-side inlet shell are fixedly connected with flow equalizing plates.

[0007] Preferably, the cold side inlet shell and the inlet opening are aligned front to back, the inlet opening and the cold side inlet shell are connected, the discharge opening and the cold side outlet shell are aligned front to back, the discharge opening and the cold side outlet shell are connected, the cold side inlet shell, the cold side outlet shell, the hot side inlet shell and the hot side outlet shell are all composed of a semicircular shell and a tube body, the flow equalizing plate is composed of a long plate and a group of through holes, the group of through holes of the flow equalizing plate is composed of individual through holes arranged at equal intervals, the front flow equalizing plate is arranged in front of the inlet opening, and the right flow equalizing plate is arranged on the right side of the shell.

[0008] Preferably, the slot is a T-slot structure, the slot consists of a middle slot and receiving slots on both sides of the middle slot, the depth dimension of the receiving slot of the slot is the same as the thickness dimension of the side strip, the depth dimension of the middle slot of the slot is greater than the thickness dimension of the support strip, the side strip is set at an inclined angle, the arc surface end of the support strip protrudes from the inner wall of the shell, the thickness dimension of the core is the same as the inner height dimension of the shell, the spacing dimension between the support part and the limiting transmission part is the same as the length dimension of the core, the hot side flow channel consists of a middle wave channel and straight channels on both sides, the cold side flow channel consists of a front inlet, a middle horizontal channel and a rear outlet, the inlets of the cold side flow channels are aligned and connected with the entry opening, and the outlets of the cold side flow channels are aligned and connected with the discharge opening.

[0009] Preferably, the limit transmission part includes a rotating shaft rotatably connected to the inner wall of the shell, the front end of the rotating shaft passes through the shell and is fixedly connected with a rotating knob, the outer sides of the rotating shaft are fixedly connected with special-shaped wheels that fit with the inner wall of the shell, the right side of the special-shaped wheel is provided with a fixed half-frame fixedly connected to the inner wall of the shell, the left side of the fixed half-frame is fitted with a transmission half-frame mounted on the outside of the special-shaped wheel, the right end of the transmission half-frame and the left end of the fixed half-frame are both provided with notches, a group of tension springs are fixedly connected between the inner walls of the notches, and the outer side of the special-shaped wheel is fixedly connected to the limit frame.

[0010] Preferably, the left end face of the transmission half frame fits with the right end face of the core, the transmission half frame and the fixed half frame are aligned left and right, the limit frames are arranged between a group of transmission half frames, and the limit frames fit with the outer end faces of the transmission half frames.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the utility model, by setting the main body, flow equalizing plate and core structure, on the one hand, the cold side shell inlet and the cold side shell outlet are arranged on the front and rear sides of the main body and the core, so that the cold fluid can enter the core area in the shell through the cold side shell inlet and the entrance opening, and then be discharged through the cold side shell outlet, and the cold fluid before entering the core area can be equalized through the front side flow equalizing plate, and the cold fluid after equalization will pass through the core area through the dense cold side flow channels of each stacked cold side heat exchange plate, on the other hand, the hot side shell outlet and the hot side shell inlet are arranged on the left and right sides of the main body and the core, so that the hot fluid can enter the core area in the shell through the hot side shell inlet, and then be discharged through the hot side shell outlet, and the hot fluid before entering the core area can be equalized through the right side flow equalizing plate, and the hot fluid after equalization will pass through each stack The dense hot side flow channels of the stacked hot side heat exchange plates pass through the core area. Since the core is formed by a group of hot side heat exchange plates and a group of cold side heat exchange plates stacked alternately, and the dense flow channels of the hot side heat exchange plates and the cold side heat exchange plates can finely divert the cold fluid and the hot fluid, so that the cold fluid and the hot fluid can fully exchange heat with each other when passing through the core, thereby completing the heat exchange and cooling of the hot fluid hydrogen, and realizing that the cooling heat exchanger can fully and fully exchange heat and cool the high-pressure hydrogen, solving the problem that the existing cooling heat exchanger exchanges heat and cools the hot fluid in the outer shell of the tube through the cold fluid circulating in each tube body, and due to the large spacing between the tube bodies, part of the high-pressure hydrogen may fail to contact the tube body or be far away from the tube body when passing through, and fail to participate in the heat exchange, resulting in general heat exchange and cooling efficiency;

[0013] 2. In the utility model, the core is installed on the inner side of the shell through the structures such as the shell, the fixing part and the limiting transmission part, and the position of the core can be positioned by the fixing part on the left and the limiting transmission part on the right. When the core needs to be taken out for maintenance, the hot side inlet shell and the hot side outlet shell on both sides are first removed from the main body to expose the openings on both sides of the shell, and then the knob is rotated clockwise to make the shaft drive the special-shaped wheels on both sides to rotate. The clockwise rotation of the special-shaped wheels can squeeze the transmission half frames on both sides, so that a group of transmission half frames are displaced to the left at the same time, pushing the core to move to the left, and the left movement of the core can squeeze the fixing part on the left, so that the fixing part is displaced into the slot under pressure. At this time, the core can be exposed from the left opening of the shell without being affected by the fixing part. At this time, the staff will remove the exposed core from The core can be pulled out from the shell for maintenance. After the core is taken out, the supporting part can be reset by the supporting spring, while the resetting of the limit transmission part requires the rotation of the special-shaped wheel so that the transmission half frame can be reset by the tension spring. Finally, the maintained core can be pushed back to its original position through the left opening of the shell. This enables the staff to quickly disassemble and assemble the internal heat exchange structure of the high-pressure hydrogen cooling heat exchanger as needed after long-term use, so as to clean and maintain the heat exchange mechanism to ensure the heat exchange and cooling performance of the heat exchanger. This solves the problem that after the existing cooling heat exchanger is used for a long time, the surface of the heat exchange structure will have dirt generated by fluid heat exchange, which will affect the heat exchange performance for a long time. Since the internal heat exchange structure of the existing cooling heat exchanger is inconvenient to disassemble and assemble, it is inconvenient to clean and maintain it. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 A schematic cross-sectional structure diagram of;

[0016] Figure 3 For this utility model Figure 2 A rear view structural diagram of ;

[0017] Figure 4 It is a structural schematic diagram of the main body of the utility model;

[0018] Figure 5 For this utility model Figure 4 A schematic diagram of the structure at A;

[0019] Figure 6 This is a schematic diagram of the split structure of the core of the utility model;

[0020] Figure 7 This is a schematic diagram of the structure of the hot side heat exchange plate of the utility model;

[0021] Figure 8For this utility model Figure 7 Schematic diagram of the structure at B;

[0022] Fig. 9 This is a schematic diagram of the structure of the cold side heat exchange plate of the utility model;

[0023] Fig.10 For this utility model Fig. 9 Schematic diagram of the structure at C;

[0024] Fig.11 It is a structural schematic diagram of the housing of the utility model;

[0025] Fig.12 For this utility model Fig.11 Another perspective structural diagram of;

[0026] Fig.13 It is a structural schematic diagram of the reinforcing part of the utility model;

[0027] Fig.14 For this utility model Figure 4 A right view structural diagram of ;

[0028] Fig.15 It is a structural schematic diagram of the limit transmission part of the utility model;

[0029] Fig.16 For this utility model Fig.15 Schematic diagram of the structure at D.

[0030] In the figure: 1. main body; 11. shell; 12. inlet opening; 13. outlet opening; 14. slot; 15. fixing part; 151. fixing bar; 152. supporting spring; 153. side bar; 16. limiting transmission part; 161. rotating shaft; 162. knob; 163. special-shaped wheel; 164. fixed half frame; 165. transmission half frame; 166. notch; 167. tension spring; 168. limiting frame; 2. cold side shell inlet; 3. cold side shell outlet; 4. hot side shell inlet; 5. hot side shell outlet; 6. flow equalizing plate; 7. core; 71. hot side heat exchange plate; 711. plate body; 712. hot side flow channel; 72. cold side heat exchange plate; 721. plate; 722. cold side flow channel. DETAILED DESCRIPTION

[0031] See also Figure 1-16 , the utility model provides a technical solution:

[0032] A high-pressure hydrogen cooling heat exchanger for a hydrogen fuel cell vehicle comprises a main body 1, the main body 1 comprises a shell 11, an inlet opening 12 is provided on the left side of the front end face of the shell 11, an outlet opening 13 is provided on the right side of the rear end face of the shell 11, a slot 14 is provided on the left side of the front and rear inner walls of the shell 11, a buttress 15 is installed on the inner side of the slot 14, the buttress 15 comprises a buttress 151, the buttress 151 is arranged on the inner side of the middle slot of the slot 14, the upper and lower sides of the outer plane of the buttress 151 are fixedly connected with support springs 152, the end of the support spring 152 away from the buttress 151 is fixedly connected to the inner wall of the middle slot of the slot 14, and the left and right sides of the buttress 151 are fixedly connected with side strips 153 The end of the side bar 153 away from the stop bar 151 is fixedly connected to the inner wall of the storage groove of the slot 14. A limited transmission part 16 is installed on the right side of the inside of the shell 11. A core part 7 located on the inner side of the shell 11 is installed between the stop part 15 and the limited transmission part 16. The core part 7 includes a group of eighteen hot side heat exchange plates 71 and a group of seventeen cold side heat exchange plates 72. A group of hot side heat exchange plates 71 and a group of cold side heat exchange plates 72 are staggered and stacked. The hot side heat exchange plate 71 includes a plate body 711. A group of multiple hot side flow channels 712 arranged at equal distances are opened on the upper end surface of the plate body 711. The cold side heat exchange plate 72 includes a plate member 721. A group of A plurality of cold side flow channels 722 are arranged in an equidistant manner, the front side of the shell 11 is fixedly connected with a cold side inlet shell 2, the rear side of the shell 11 is fixedly connected with a cold side outlet shell 3, the right side of the shell 11 is bolted with a hot side inlet shell 4, the left side of the shell 11 is bolted with a hot side outlet shell 5, the inner sides of the cold side inlet shell 2 and the hot side inlet shell 4 are fixedly connected with a flow equalizing plate 6, the cold side inlet shell 2 and the inlet opening 12 are aligned front to back, the inlet opening 12 and the cold side inlet shell 2 are connected, the discharge opening 13 and the cold side outlet shell 3 are aligned front to back, and the discharge opening 13 and the cold side outlet shell 3 are connected, through this arrangement, the cold fluid can enter the shell through the cold side inlet shell 2 and the inlet opening 12 The body 11 can be discharged through the discharge opening 13 and the cold side shell 3; the cold side shell 2, the cold side shell 3, the hot side shell 4 and the hot side shell 5 are all composed of a semicircular shell and a tube body. Through this arrangement, the cold side shell 2, the cold side shell 3, the hot side shell 4 and the hot side shell 5 can all circulate. The flow equalizing plate 6 is composed of a long plate and a group of through holes. The group of through holes of the flow equalizing plate 6 is composed of individual through holes arranged at equal intervals. The front side flow equalizing plate 6 is arranged in front of the entrance opening 12, and the right side flow equalizing plate 6 is arranged on the right side of the shell 11. Through this arrangement, the front side flow equalizing plate 6 can equalize the cold fluid entering the shell 11, and the right side flow equalizing plate 6 can equalize the hot fluid entering the shell 11;The slot 14 is a T-slot structure, and the slot 14 is composed of a middle slot and storage slots on both sides of the middle slot. The depth dimension of the storage slot of the slot 14 is the same as the thickness dimension of the side strip 153, and the depth dimension of the middle slot of the slot 14 is greater than the thickness dimension of the abutment strip 151. Through this setting, the slot 14 can accommodate the side strip 153 and the abutment strip 151. The side strip 153 is set at an inclined angle, and the arc surface end of the abutment strip 151 protrudes from the inner wall of the shell 11. Through this setting, the abutment portion 15 can limit the left side of the core 7; the thickness dimension of the core 7 is the same as the inner height dimension of the shell 11, and the spacing dimension between the abutment portion 15 and the limiting transmission portion 16 is the same as the length of the core 7. The sizes are the same. Through this arrangement, the fixing part 15 and the limiting transmission part 16 can position the core 7. The hot side flow channel 712 is composed of a wave channel in the middle and straight channels on both sides. Through this arrangement, the speed of the hot fluid passing through the core 7 can be slowed down, so that the hot fluid can fully exchange heat. The cold side flow channel 722 is composed of an inlet channel on the front side, a cross channel in the middle and an outlet channel on the rear side. The inlet channels of the cold side flow channel 722 are aligned and connected with the inlet opening 12, and the outlet channels of the cold side flow channel 722 are aligned and connected with the outlet opening 13. Through this arrangement, the cold fluid passing through the inlet opening 12 will pass through the inlet channel, middle channel and outlet channel of the cold side flow channel 722 and then flow out from the outlet opening 13. ;

[0033] like Figure 14-16 As shown, the limit transmission part 16 includes a rotating shaft 161 rotatably connected to the inner wall of the shell 11, the front end of the rotating shaft 161 passes through the shell 11 and is fixedly connected to a knob 162, both sides of the outside of the rotating shaft 161 are fixedly connected to special-shaped wheels 163 that fit the inner wall of the shell 11, the right side of the special-shaped wheel 163 is provided with a fixed half frame 164 fixedly connected to the inner wall of the shell 11, the left side of the fixed half frame 164 is fitted with a transmission half frame 165 sleeved on the outside of the special-shaped wheel 163, the right end of the transmission half frame 165 and the left end of the fixed half frame 164 are both provided with a notch 166, a group of inner walls of the notch 166 are fixedly connected with a tension spring 167, the outer side of the special-shaped wheel 163 is fixed The fixed connection limit frame 168 can limit the right side of the core 7 through the inactive limit transmission part 16, and the left end of the core 7 can be squeezed out of the shell 11 through the activated limit transmission part 16; the left end face of the transmission half frame 165 is in contact with the right end face of the core 7, and the transmission half frame 165 and the fixed half frame 164 are aligned left and right. The limit frames 168 are all arranged between a group of transmission half frames 165, and the limit frames 168 are all in contact with the outer end faces of the transmission half frames 165. Through this arrangement, the limit frames 168 can rotate with the rotation of the special-shaped wheel 163, and the limit frames 168 can limit the displaced transmission half frame 165, so that the transmission half frame 165 can only be displaced laterally.

[0034] Working process: The heat exchange and cooling operation of the high-pressure hydrogen cooling heat exchanger of the hydrogen fuel cell vehicle on the high-pressure hydrogen is as follows. Note 1: The hot fluid refers to high-pressure hydrogen; Note 2: The fixing part 15 and the limiting transmission part 16 can position the core 7 used for heat exchange so that the core 7 maintains its position during heat exchange; on the one hand, the cold side inlet shell 2 and the cold side outlet shell 3 are both arranged on the front and rear sides of the main body 1 and the core 7, so that the cold fluid can enter the core 7 area in the shell 11 through the cold side inlet shell 2 and the entrance opening 12, and then be discharged through the cold side outlet shell 3, and the cold fluid before entering the core 7 area can be evenly distributed through the front side equalizing plate 6, and the evenly distributed cold fluid will pass through the dense cold side flow channels 7 of each stacked cold side heat exchange plate 72. 22 to pass through the core 7 area, on the other hand, the hot side outlet shell 5 and the hot side inlet shell 4 are arranged on the left and right sides of the main body 1 and the core 7, so that the hot fluid can enter the core 7 area in the shell 11 through the hot side inlet shell 4, and then be discharged through the hot side outlet shell 5, and the hot fluid before entering the core 7 area can be evenly distributed through the right side equalizing plate 6, and the hot fluid after evenly distributed will pass through the core 7 area through the dense hot side flow channels 712 of each stacked hot side heat exchange plate 71. Since the core 7 is composed of a group of hot side heat exchange plates 71 and a group of cold side heat exchange plates 72 stacked in an alternating manner, and the dense flow channels of the hot side heat exchange plates 71 and the cold side heat exchange plates 72 can finely divert the cold fluid and the hot fluid, so that the cold fluid and the hot fluid When passing through the core 7, they can fully exchange heat with each other, thereby completing the heat exchange and cooling of the hot fluid hydrogen; when the core 7 needs to be taken out for maintenance, first remove the hot side inlet shell 4 and the hot side outlet shell 5 on both sides from the main body 1 to expose the openings on both sides of the shell 11, and then rotate the knob 162 clockwise to make the shaft 161 drive the special-shaped wheels 163 on both sides to rotate, and the clockwise rotation of the special-shaped wheels 163 can squeeze the transmission half frames 165 on both sides, so that a group of transmission half frames 165 are displaced to the left at the same time, pushing the core 7 to move to the left, and the left movement of the core 7 can squeeze the left side of the fixing part 15, so that the fixing part 15 is displaced into the slot 14 under pressure, and the core 7 is not affected by the fixing part. The influence of 15 is exposed from the left opening of the shell 11. At this time, the staff can pull the exposed core 7 out of the shell 11 for maintenance. After taking out the core 7, the fixing part 15 can reset the support bar 151 and the side bar 153 through the support spring 152, and the resetting of the limiting transmission part 16 requires rotating the special-shaped wheel 163 to reset the transmission half frame 165 through the tension spring 167. Finally, the maintained core 7 can be pushed back to its original position through the left opening of the shell 11, so that after the high-pressure hydrogen cooling heat exchanger is used for a long time, the staff can quickly disassemble and assemble the internal heat exchange structure as needed, so as to clean and maintain the heat exchange mechanism to ensure the heat exchange and cooling performance of the heat exchanger.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-pressure hydrogen cooling heat exchanger for a hydrogen fuel cell vehicle, comprising a main body (1), characterized in that: The main body (1) comprises a shell (11), an inlet opening (12) is provided on the left side of the front end surface of the shell (11), and an outlet opening (13) is provided on the right side of the rear end surface of the shell (11). The left sides of the front and rear inner walls of the shell (11) are provided with grooves (14), and the inner sides of the grooves (14) are provided with a supporting part (15), and the supporting part (15) comprises a supporting strip (151), and the supporting strip (151) is arranged on the inner side of the middle groove of the groove (14), and the outer plane of the supporting strip (151) is provided with a supporting strip (151). The lower two sides are fixedly connected with support springs (152), and the ends of the support springs (152) away from the support bar (151) are fixedly connected to the inner wall of the middle groove of the slot (14). The left and right sides of the support bar (151) are fixedly connected with side bars (153), and the ends of the side bars (153) away from the support bar (151) are fixedly connected to the inner wall of the storage slot of the slot (14). A limited transmission part (16) is installed on the right side of the interior of the shell (11), and the support part (15) and the limited transmission part (16) are fixedly connected. A core (7) is installed on the inner side of the shell (11), the core (7) comprising a group of eighteen hot-side heat exchange plates (71) and a group of seventeen cold-side heat exchange plates (72), the group of hot-side heat exchange plates (71) and the group of cold-side heat exchange plates (72) being arranged in a staggered stack, the hot-side heat exchange plates (71) comprising a plate body (711), a group of multiple hot-side flow channels (712) arranged in an equidistant manner are provided on the upper end surface of the plate body (711), the cold-side heat exchange plates (72) comprising a plate member (72 1), a group of multiple cold side flow channels (722) arranged at equal intervals are provided on the upper end surface of the plate (721), a cold side inlet shell (2) is fixedly connected to the front side of the shell (11), a cold side outlet shell (3) is fixedly connected to the rear side of the shell (11), a hot side inlet shell (4) is installed on the right side of the shell (11) by bolts, and a hot side outlet shell (5) is installed on the left side of the shell (11) by bolts, and a flow equalizing plate (6) is fixedly connected to the inner sides of the cold side inlet shell (2) and the hot side inlet shell (4).

2. The high-pressure hydrogen cooling heat exchanger for a hydrogen fuel cell vehicle according to claim 1, characterized in that: The cold side inlet shell (2) and the inlet opening (12) are arranged in a front-to-back alignment, the inlet opening (12) and the cold side inlet shell (2) are connected, the discharge opening (13) and the cold side outlet shell (3) are arranged in a front-to-back alignment, the discharge opening (13) and the cold side outlet shell (3) are connected, the cold side inlet shell (2), the cold side outlet shell (3), the hot side inlet shell (4) and the hot side outlet shell (5) are all composed of a semicircular shell and a tube body, the flow equalizing plate (6) is composed of a long plate and a group of through holes, the group of through holes of the flow equalizing plate (6) is composed of individual through holes arranged at equal intervals, the front side flow equalizing plate (6) is arranged in front of the inlet opening (12), and the right side flow equalizing plate (6) is arranged on the right side of the shell (11).

3. The high-pressure hydrogen cooling heat exchanger for a hydrogen fuel cell vehicle according to claim 1, characterized in that: The slot (14) is a T-slot structure. The slot (14) is composed of a middle slot and receiving slots on both sides of the middle slot. The depth dimension of the receiving slot of the slot (14) is the same as the thickness dimension of the side strip (153). The middle slot depth dimension of the slot (14) is greater than the thickness dimension of the support strip (151). The side strip (153) is set at an inclined angle. The arc surface end of the support strip (151) protrudes from the inner wall of the shell (11). The thickness dimension of the core (7) is the same as the inner height dimension of the shell (11). The sizes are the same, the spacing between the fixing part (15) and the limiting transmission part (16) is the same as the length size of the core (7), the hot side flow channel (712) is composed of a wave channel in the middle and straight channels on both sides, and the cold side flow channel (722) is composed of an inlet channel on the front side, a horizontal channel in the middle and an outlet channel on the rear side, the inlet channels of the cold side flow channel (722) are aligned and connected with the inlet opening (12), and the outlet channels of the cold side flow channel (722) are aligned and connected with the outlet opening (13).

4. The high-pressure hydrogen cooling heat exchanger for a hydrogen fuel cell vehicle according to claim 1, characterized in that: The position limiting transmission part (16) comprises a rotating shaft (161) rotatably connected to the inner wall of the shell (11); the front end of the rotating shaft (161) passes through the shell (11) and is fixedly connected to a rotating knob (162); both sides of the outer side of the rotating shaft (161) are fixedly connected to special-shaped wheels (163) that fit the inner wall of the shell (11); and the right side of the special-shaped wheel (163) is provided with a fixed half frame that is fixedly connected to the inner wall of the shell (11). (164), the left side of the fixed half frame (164) is fitted with a transmission half frame (165) which is sleeved on the outside of the special-shaped wheel (163), the right end of the transmission half frame (165) and the left end of the fixed half frame (164) are both provided with a notch (166), a group of inner walls of the notch (166) are fixedly connected with a tension spring (167), and the outer side of the special-shaped wheel (163) is fixedly connected with a limit frame (168).

5. The high-pressure hydrogen cooling heat exchanger for a hydrogen fuel cell vehicle according to claim 4, characterized in that: The left end surface of the transmission half frame (165) is in contact with the right end surface of the core (7); the transmission half frame (165) and the fixed half frame (164) are arranged to be aligned left and right; the limit frames (168) are arranged between a group of transmission half frames (165); and the limit frames (168) are in contact with the outer end surfaces of the transmission half frames (165).

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