Vehicle-mounted hydrogen storage cylinder liner hydrogen aging test device

Abstract

The invention relates to the technical field of hydrogen cylinder tests, in particular to a vehicle-mounted hydrogen storage cylinder liner hydrogen aging test device which comprises a test bed and a protection assembly. The test bench is connected with a protection assembly. According to the device, chippings are limited through the first limiting part, the situation that the chippings are wrapped by hydrogen to flow into the second gas pump is avoided, meanwhile, the chippings are limited through the second limiting part, the situation that the chippings are wrapped by hydrogen to flow into the second gas pump can also be avoided, and the chipping collecting effect of the chipping collecting position is improved; hydrogen is guided to flow away from one side of an included angle between the guide plate and the second baffle through the guide surface, so that influence of hydrogen flow on collection of scraps is prevented, and the situation that the scraps are wrapped by hydrogen and flow into the second gas pump, blockage is caused, and the follow-up leaked hydrogen collection effect of equipment is affected is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of hydrogen cylinder testing, and in particular to a vehicle-mounted hydrogen storage cylinder liner hydrogen aging testing device. Background Art

[0002] The on-board hydrogen cylinder is a device used to store high-pressure hydrogen and supply it to fuel cell vehicles as an energy source. The bottle body consists of an inner liner and an outer shell.

[0003] When conducting a hydrogen aging test on the inner liner of a hydrogen cylinder, the hydrogen cylinder needs to be repeatedly inflated and deflated. In real life, when a vehicle-mounted hydrogen cylinder is hit, even a slight impact may cause tiny cracks in the bottle body or damage the protective layer on the surface of the inner liner. Although this damage is not easy to detect, it may accelerate the hydrogen aging process of the inner liner. Therefore, in order to improve the credibility of the hydrogen aging data, it is necessary to conduct an impact simulation test on the vehicle-mounted hydrogen cylinder in the hydrogen aging test. When conducting the above two tests at the same time, if there is a problem with the quality of the vehicle-mounted hydrogen cylinder, the position where the vehicle-mounted hydrogen cylinder is hit will be dented, causing the hydrogen in the vehicle-mounted hydrogen cylinder to leak. During the hydrogen leakage process, the position where the vehicle-mounted hydrogen cylinder is hit will generate impact heat, causing the leaked hydrogen to be heated and ignited by the impact heat, resulting in the risk of hydrogen explosion, endangering the personal safety of the staff. Summary of the invention

[0004] In order to overcome the disadvantage that during hydrogen leakage, impact heat is generated at the position where the on-board hydrogen cylinder is hit, so that the leaked hydrogen is heated and ignited by the impact heat, resulting in the risk of hydrogen explosion and endangering the personal safety of workers, the present invention provides a hydrogen aging test device for the inner liner of a vehicle-mounted hydrogen storage cylinder.

[0005] The technical solution is: a vehicle-mounted hydrogen storage cylinder liner hydrogen aging test device, including a test bench and a protection component; the test bench is connected to the protection component; it also includes a hydrogen aging test component, an impact simulation component, an isolation cover, a guide plate, a partition, a hydrogen detection component, a hydrogen collection component and a moving component; the test bench is connected to a hydrogen aging test component for simulating hydrogen aging of the hydrogen cylinder liner; the test bench is provided with an impact simulation component for simulating the impact state of the hydrogen cylinder; the impact simulation component is connected to an isolation cover for accumulating leaked hydrogen; the impact simulation component is connected to a plurality of guide plates, the guide plates are made of elastic plates; each guide plate is connected to a partition for isolating the leaked hydrogen from the impact heat, the partition is made of elastic plates; the protection component is connected to a hydrogen detection component for detecting whether hydrogen is leaked; the test bench is connected to a hydrogen collection component for collecting leaked hydrogen; the test bench is connected to a moving component for moving the test bench to a test position.

[0006] As a further preferred solution, the protection assembly includes a protection cover and a protection door; the protection cover is fixedly connected to the test bench; and a plurality of protection doors are connected to the protection cover in a damping sliding manner.

[0007] As a further preferred scheme, the hydrogen aging test assembly includes a first gas pump, an outlet pipe, a first collecting box and an inlet pipe; the first gas pump is fixedly connected to the test bench; the inlet pipe is fixedly connected to the exhaust port of the first gas pump; the outlet of the first gas pump is connected to the outlet pipe; the first collecting box for storing hydrogen is fixedly connected to the upper side of the protective cover; the other end of the outlet pipe is connected to the first collecting box.

[0008] As a further preferred embodiment, the hydrogen collection assembly includes a first connecting pipe, a second connecting pipe, a gas supply pipe, a second collecting box and a second gas pump; the second gas pump is fixedly connected to the test bench; the first connecting pipe is connected to the first gas pump inlet end; the other end of the first connecting pipe is connected to the upper left side of the isolation cover; the second gas pump inlet end is connected to the second connecting pipe; the other end of the second connecting pipe is connected to the lower left side of the isolation cover; the second gas pump outlet end is connected to the gas supply pipe; a second collecting box for collecting leaked hydrogen is fixedly connected to the upper side of the first collecting box; the other end of the gas supply pipe is connected to the second collecting box.

[0009] As a further preferred scheme, the impact simulation assembly includes a driving member, an impact rod and an isolation rod; the driving member is fixedly connected to the test bench; the telescopic end of the driving member is fixedly connected to the right side of the isolation cover; the impact rod is fixedly connected to the left side of the isolation cover; an impact surface is arranged on the rear side of the impact rod; each partition does not contact the impact surface; a number of isolation rods are slidably connected to the impact rod, and the isolation rods are made of heat-insulating material; each isolation rod is fixedly connected to an adjacent partition.

[0010] As a further preferred embodiment, the hydrogen detection assembly includes a hydrogen detector, a first guide tube and a second guide tube; the hydrogen detector is fixedly connected to the front inner side of the protective cover; the air inlet of the hydrogen detector is connected to the first guide tube; the other end of the first guide tube is connected to the left side of the isolation cover; the first guide tube is connected to the second guide tube; the other end of the second guide tube is connected to the left side of the isolation cover.

[0011] As a further preferred solution, the moving assembly includes pulleys and handrails; a plurality of pulleys are rotatably connected to the lower side of the test bench; and a handrail is fixedly connected to the left side of the test bench.

[0012] As a further preferred solution, it also includes a first baffle and a second baffle; the first baffle is fixedly connected to the partition plate located on the upper side; and the second baffle is fixedly connected to the guide plate located on the lower side.

[0013] As a further preferred solution, a first limiting portion is provided on the first baffle plate; and a second limiting portion is provided on the second baffle plate.

[0014] As a further preferred solution, a guide surface is provided on the second baffle.

[0015] The present invention has the following advantages: the present invention realizes shielding the heating surface by means of the isolation rod and the partition, thereby preventing the hydrogen leaking from the leakage part from contacting the heating surface, causing the hydrogen to be ignited after the temperature rises, resulting in the risk of explosion and endangering the personal safety of the staff; The first limiting portion is used to limit the debris, so as to prevent the debris from being carried by the hydrogen and flowing into the second gas pump. At the same time, the second limiting portion is used to limit the debris, so as to prevent the debris from being carried by the hydrogen and flowing into the second gas pump, thereby improving the collection effect of the debris collection position on the debris. The guide surface guides the hydrogen to flow away from the angle between the guide plate and the second baffle, preventing the hydrogen flow from affecting the collection of debris and preventing the debris from being entrained by the hydrogen and flowing into the second gas pump, causing blockage and affecting the subsequent collection effect of the equipment on the leaked hydrogen. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the hydrogen aging test device for the inner liner of a vehicle-mounted hydrogen storage cylinder of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the combination of the hydrogen aging test component, the protection component and the high temperature simulation component of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the hydrogen detection component, hydrogen bottle and isolation cover of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the impact simulation component, hydrogen bottle, isolation cover and guide plate combination of the present invention, wherein the isolation cover is treated as a cross-section; Figure 5 It is a side view of the combination of the impact simulation component, the hydrogen bottle, the isolation cover and the guide plate of the present invention, wherein the isolation cover is cut away; Figure 6 It is a side view of the isolation rod, the first baffle, the second baffle and the partition assembly of the present invention; Figure 7 It is a schematic diagram of the depressed state of the hydrogen bottle of the present invention; Figure 8 It is a side view of the guide plate, the partition plate, the isolation rod and the first baffle assembly of the present invention; Fig. 9 It is a side view of the guide plate, partition plate, isolation rod and second baffle assembly of the present invention.

[0017] Among them: 1-test bench, 2-hydrogen cylinder, 2001-leakage part, 3-isolation cover, 4-guide plate, 5-partition, 101-protection cover, 102-protection door, 201-first gas pump, 202-first connecting pipe, 203-second connecting pipe, 204-gas outlet pipe, 205-first collecting box, 206-gas inlet pipe, 207-gas delivery pipe, 208-second collecting box, 209-second gas pump, 301-driving member, 302-impact rod, 30201-impact surface, 30202-heating surface, 303-isolation rod, 304-first baffle, 30401-first limiting part, 305-second baffle, 30501-second limiting part, 30502-guide surface, 401-hydrogen detector, 402-first guide pipe, 403-second guide pipe, 501-pulley, 502-handrail. DETAILED DESCRIPTION

[0018] The technical solution is further described below in conjunction with specific embodiments. It should be noted that the words indicating directions such as up, down, left, and right mentioned in this article are only for the position of the structure shown in the corresponding drawings. The serial numbers of the parts in this article, such as first, second, etc., are only used to distinguish the objects described and do not have any order or technical meaning. The words such as connection and coupling in this application include direct and indirect connection (coupling) unless otherwise specified.

[0019] Example 1 like Figure 1-Figure 7 As shown, a vehicle-mounted hydrogen storage cylinder liner hydrogen aging test device includes a test bench 1 and a protection component; the test bench 1 is connected to the protection component; It also includes a hydrogen aging test component, an impact simulation component, an isolation cover 3, a guide plate 4, a partition 5, a hydrogen detection component, a hydrogen collection component and a moving component; the test bench 1 is connected to the hydrogen aging test component; the test bench 1 is provided with an impact simulation component; the impact simulation component is connected to the isolation cover 3; the impact simulation component is connected to two guide plates 4 symmetrical up and down, and the guide plates 4 are made of elastic plates; each guide plate 4 is connected to a partition 5, and the partition 5 is made of elastic plates; the protection component is connected to the hydrogen detection component; the test bench 1 is connected to the hydrogen collection component; the test bench 1 is connected to the moving component.

[0020] The protection assembly includes a protection cover 101 and a protection door 102 ; the protection cover 101 is fixedly connected to the test bench 1 ; and two left-right symmetrical protection doors 102 are connected to the protection cover 101 in a damping sliding manner.

[0021] The hydrogen aging test assembly includes a first gas pump 201, an air outlet pipe 204, a first collecting box 205 and an air inlet pipe 206; the first gas pump 201 is fixedly connected to the test bench 1; the air inlet pipe 206 is fixedly connected to the air outlet of the first gas pump 201; the air outlet of the first gas pump 201 is connected to the air outlet pipe 204; the first collecting box 205 is fixedly connected to the upper side of the protective cover 101; the other end of the air outlet pipe 204 is connected to the first collecting box 205.

[0022] The hydrogen collection component includes a first connecting pipe 202, a second connecting pipe 203, a gas supply pipe 207, a second collection box 208 and a second gas pump 209; the second gas pump 209 is fixedly connected to the test bench 1; the first connecting pipe 202 is connected to the first connecting pipe 209 at the air inlet end; the other end of the first connecting pipe 202 is connected to the upper left side of the isolation cover 3; the second connecting pipe 203 is connected to the second connecting pipe 203 at the air inlet end of the second gas pump 209; the other end of the second connecting pipe 203 is connected to the lower left side of the isolation cover 3; the gas outlet end of the second gas pump 209 is connected to the gas supply pipe 207; the second collection box 208 is fixedly connected to the upper side of the first collection box 205; the other end of the gas supply pipe 207 is connected to the second collection box 208.

[0023] The impact simulation component includes a driving member 301, an impact rod 302 and an isolation rod 303; the driving member 301 is fixedly connected to the test bench 1, and the driving member 301 is a hydraulic push rod; the telescopic end of the driving member 301 is fixedly connected to the right side of the isolation cover 3; the impact rod 302 is fixedly connected to the left side of the isolation cover 3; an impact surface 30201 is arranged on the rear side of the impact rod 302; each partition 5 does not contact the impact surface 30201; two isolation rods 303 symmetrical in upper and lower directions are slidably connected to the impact rod 302, and the isolation rods 303 are made of heat-insulating material; each isolation rod 303 is fixedly connected to the adjacent partition 5.

[0024] The hydrogen detection component includes a hydrogen detector 401, a first guide tube 402 and a second guide tube 403; the hydrogen detector 401 is fixedly connected to the front inner side of the protective cover 101; the air inlet of the hydrogen detector 401 is connected to the first guide tube 402; the other end of the first guide tube 402 is connected to the upper left side of the isolation cover 3; the first guide tube 402 is connected to the second guide tube 403; the other end of the second guide tube 403 is connected to the lower left side of the isolation cover 3.

[0025] The moving assembly includes a pulley 501 and an armrest 502 ; four pulleys 501 are rotatably connected to the lower side of the test bench 1 ; and an armrest 502 is fixedly connected to the left side of the test bench 1 .

[0026] The following is the specific working content of the present invention: First, the staff pulls up the protective door 102 located on the right side, so that the protective door 102 slides upward to open the protective cover 101, and then puts the hydrogen cylinder 2 into the protective cover 101 with the safety valve facing left, and fixes the hydrogen cylinder 2 on the test bench 1 by bolts, and then puts the safety valve on the hydrogen cylinder 2 on the intake pipe 206 to connect the safety valve on the hydrogen cylinder 2 with the intake pipe 206.

[0027] Subsequently, the staff opens the safety valve on the hydrogen cylinder 2 and evacuates the gas through the first gas pump 201, so that the hydrogen in the hydrogen cylinder 2 enters the first collecting box 205 along the inlet pipe 206 and the outlet pipe 204. Subsequently, after all the hydrogen in the hydrogen cylinder 2 is evacuated, the first gas pump 201 is controlled to inflate the gas, so that the hydrogen in the first collecting box 205 enters the hydrogen cylinder 2 along the outlet pipe 204 and the inlet pipe 206. In this way, the high-pressure hydrogen is charged and discharged repeatedly, so that the high-pressure hydrogen impacts the inner liner of the hydrogen cylinder, and the hydrogen aging test of the inner liner of the hydrogen cylinder is carried out. The charging and discharging cycle is 5-10 times. After completing a charging and discharging cycle, the staff The driving member 301 is controlled to move the impact rod 302 backward, thereby driving the isolation cover 3, the guide plate 4 and the partition 5 to move backward, so that the impact surface 30201 on the impact rod 302 impacts the hydrogen cylinder 2, and the above operation is repeated 3-5 times, thereby simulating the influence of the hydrogen cylinder 2 on the aging of the inner liner of the hydrogen cylinder when it is impacted for a long time. The above operation is taken as a test cycle. After the end of one test cycle, the performance of the hydrogen cylinder liner is evaluated and the test data is recorded. Then, the above test cycle is repeated and the test data is recorded until hydrogen leakage occurs in the hydrogen cylinder 2, and a conclusion is drawn on the influence of the impact on the aging of the inner liner of the hydrogen cylinder 2.

[0028] During the impact of the impact rod 302 on the hydrogen bottle 2, the left side of the isolation cover 3 will also come into contact with the body of the hydrogen bottle 2, and will be gradually squeezed by the body of the hydrogen bottle 2 during the contact process, causing the isolation cover 3 to gradually deform, thereby causing the isolation cover 3 to gradually fit together with the body of the hydrogen bottle 2, thereby forming a closed space between the isolation cover 3, the impact rod 302 and the body of the hydrogen bottle 2, and the closed space is divided into an upper closed space and a lower closed space by the impact rod 302, and then, the impact rod 302 is kept in contact with the hydrogen bottle 2 for a period of time after the impact, and during the process of maintaining the contact, the hydrogen detector 401 is controlled to inhale, so that the closed space The gas in the hydrogen bottle 2 enters the hydrogen detector 401 along the first guide tube 402 and the second guide tube 403 respectively, so as to detect whether the hydrogen is leaking. Subsequently, in the above simulation process, if there is a problem with the quality of the hydrogen bottle 2, the part of the hydrogen bottle 2 hit by the impact rod 302 will be sunken inward. At the same time, when the impact rod 302 hits the hydrogen bottle 2 and the impact rod 302 gradually fits with the sunken part on the hydrogen bottle 2, the isolation rod 303 will contact the body of the hydrogen bottle 2 and gradually slide upward along the impact surface 30201 under the pressure of the body of the hydrogen bottle 2, so that the partition 5 is squeezed by the isolation rod 303, so that the partition 5 is deformed and arched upward to become as shown in the figure. Figure 7 In the state shown, the hydrogen in the hydrogen cylinder 2 will then leak from the recessed part of the hydrogen cylinder 2 to the closed space outside the hydrogen cylinder 2, and then enter the hydrogen detector 401 along the first guide tube 402 and the second guide tube 403, so that the hydrogen detector 401 detects that the hydrogen cylinder 2 is leaking, so that the hydrogen detector 401 sends a signal to the control center, and then the control center sends the signal to the second gas pump 209, so that the second gas pump 209 directly pumps air, so that the hydrogen leaked in the closed space enters the second gas pump 209 along the first connecting tube 202 and the second connecting tube 203, and then enters the second collecting box 208 along the gas supply pipe 207, so as to realize the collection of the leaked hydrogen and prevent the hydrogen from leaking into the air and affecting the physical and mental health of the staff.

[0029] Subsequently, since the impact rod 302 still remains in contact with the hydrogen cylinder 2, and the impact surface 30201 on the impact rod 302 fits with the depression on the hydrogen cylinder 2, the impact rod 302 blocks the hydrogen leakage point of the hydrogen cylinder 2 at the depression, avoiding large-scale tearing of the depression of the hydrogen cylinder 2, which would cause large-scale leakage of hydrogen in the hydrogen cylinder 2, increase the hydrogen concentration in the enclosed space, and cause the leaked hydrogen to explode, threatening the personal safety of the staff.

[0030] It is taken into consideration that, in the process of the impact rod 302 impacting the hydrogen cylinder 2, a large amount of impact heat will be generated at the position where the hydrogen cylinder 2 and the impact rod 302 collide due to the impact. When the impact rod 302 impacts the hydrogen cylinder 2 to a depression, the impact heat usually exists in the depression of the hydrogen cylinder 2 and the position on the impact surface 30201 that fits with the depression of the hydrogen cylinder 2. When the impact surface 30201 fits with the depression of the hydrogen cylinder 2, the impact surface 30201 blocks the depression of the hydrogen cylinder 2, so that the hydrogen leaked in the closed space cannot contact the impact surface 30201 and the depression of the hydrogen cylinder 2 with a large area where the impact heat is generated, thereby preventing the leaked hydrogen from heating up due to the impact heat or even being ignited, causing the leaked hydrogen to explode and endanger the personal safety of the staff. However, after the impact rod 302 has impacted the hydrogen cylinder 2, the impact heat on the impact surface 30201 not only exists at the position that fits with the depression of the hydrogen cylinder 2, but also at the position that fits with the depression of the hydrogen cylinder 2. Heat is dissipated along the impact surface 30201 to other parts of the impact rod 302 to form a heating surface 30202, and the impact heat on the heating surface 30202 still has the risk of causing hydrogen to explode. Moreover, the location where the hydrogen leaks on the hydrogen cylinder 2 is not only in the depression on the hydrogen cylinder 2. Since part of the body of the hydrogen cylinder 2 is depressed inward, the part of the hydrogen cylinder 2 located around the depression is prone to tearing to form a leakage part 2001. The above closed space is explained below. When the depression on the hydrogen cylinder 2 is in contact with the impact surface 30201, if the depression on the hydrogen cylinder 2 is shallow, the isolation rod 303 will not contact the body of the hydrogen cylinder 2, so that the heating surface 30202 is blocked by the isolation rod 303 and the partition 5, preventing the hydrogen leaked from the leakage part 2001 from contacting the heating surface 30202, causing the above-mentioned hydrogen to be ignited after the temperature rises, resulting in the risk of explosion and endangering the personal safety of the staff.

[0031] Subsequently, when the concave portion on the hydrogen bottle 2 fits with the impact surface 30201, the body of the hydrogen bottle 2 will squeeze the guide plate 4, causing the guide plate 4 to gradually deform, so that the guide plate 4 and the body of the hydrogen bottle 2 always keep in contact with each other. Then, when hydrogen leaks from the leaking portion 2001, the pressure between the body of the hydrogen bottle 2 and the guide plate 4 gradually increases. The increased pressure will push the guide plate 4, causing the guide plate 4 to deform, so that the position where the guide plate 4 contacts the hydrogen bottle 2 is lifted up, thereby separating from the hydrogen bottle 2 and A channel is formed between the guide plate 4 and the hydrogen cylinder 2, so that the hydrogen leaked from the leakage part 2001 is blown toward the closed space along the above-mentioned channel. Since the width of the above-mentioned channel gradually decreases, the flow rate of the above-mentioned leaked hydrogen will be accelerated in the process of passing through the above-mentioned channel, thereby facilitating the leaked hydrogen in the upper closed space to flow upward, and then facilitating the leaked hydrogen to flow quickly along the first connecting pipe 202 to the first gas pump 201, and then enter the first collecting box 205, thereby improving the collection effect of the first collecting box 205 on the leaked hydrogen.

[0032] Example 2 On the basis of Example 1, Figure 5-Figure 9 As shown, it also includes a first baffle 304 and a second baffle 305 ; the first baffle 304 is fixedly connected to the partition plate 5 located on the upper side; and the second baffle 305 is fixedly connected to the guide plate 4 located on the lower side.

[0033] When the hydrogen cylinder 2 is hit, fragments and debris will be generated. When the hydrogen cylinder 2 is hit and leaks, the fragments and debris will be pumped by the second gas pump 209 along with the leaked hydrogen. The fragments have a large mass and a larger volume than the fragments, and will not be pumped away by the second gas pump 209. The fragments have a small mass and a small volume. If they are pumped away by the second gas pump 209, it will easily cause the second gas pump 209 to be blocked in the long run. Therefore, the first baffle 304 and the second baffle 305 are added. When the hydrogen cylinder 2 is hit, fragments and debris are generated and splashed forward. After the upper sealed space blocks the fragments and debris through the guide plate 4 and the partition plate 5, the fragments fall directly downward and will not be pumped away by the second gas pump 209 along with the hydrogen. , the debris blocked by the guide plate 4 will fall onto the partition 5 and accumulate at the angle between the partition 5 and the first baffle 304 under the guidance of the partition 5. After the lower sealed space blocks the debris and debris through the guide plate 4 and the partition 5, the debris falls directly downward and will not be pumped away by the second gas pump 209 along with the hydrogen. The debris will fall onto the guide plate 4 and accumulate at the angle between the guide plate 4 and the second baffle 305 under the guidance of the guide plate 4, thereby realizing the collection of the debris and avoiding the debris from clogging the first connecting pipe 202 and the second connecting pipe 203, resulting in a decrease in the hydrogen flow rate in the first connecting pipe 202 and the second connecting pipe 203, affecting the collection of the leaked hydrogen by the device.

[0034] A first limiting portion 30401 is provided on the first baffle plate 304; a second limiting portion 30501 is provided on the second baffle plate 305; when hydrogen leaks, the first limiting portion 30401 is used to limit debris to prevent the debris from being carried by hydrogen and flowing into the second gas pump 209. At the same time, the second limiting portion 30501 is used to limit debris to prevent the debris from being carried by hydrogen and flowing into the second gas pump 209, thereby improving the debris collection effect of the above-mentioned debris collection position.

[0035] The second baffle plate 305 is provided with a guide surface 30502. The guide surface 30502 guides the hydrogen to flow away from the angle between the guide plate 4 and the second baffle plate 305, so as to prevent the flow of hydrogen from affecting the collection of debris, and to prevent the debris from being entrained by the hydrogen and flowing into the second gas pump 209, causing blockage and affecting the subsequent collection effect of the leaked hydrogen of the equipment.

[0036] The technical principles of the embodiments of the present invention are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present invention and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present invention. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the embodiments of the present invention without creative work, and these methods will fall within the protection scope of the embodiments of the present invention.

Claims

1. A vehicle-mounted hydrogen storage cylinder liner hydrogen aging test device, comprising a test bench (1) and a protection component; the test bench (1) is connected to the protection component; the characteristics are: The invention also comprises a hydrogen aging test component, an impact simulation component, an isolation cover (3), a guide plate (4), a partition (5), a hydrogen detection component, a hydrogen collection component and a moving component; the test bench (1) is connected to a hydrogen aging test component for simulating hydrogen aging of the inner liner of a hydrogen cylinder; the test bench (1) is provided with an impact simulation component for simulating the impact state of a hydrogen cylinder (2); the impact simulation component is connected to an isolation cover (3) for accumulating leaked hydrogen; the impact simulation component is connected to a plurality of guide plates (4), the guide plates (4) being made of elastic plates; each guide plate (4) is connected to a partition (5) for isolating leaked hydrogen from impact heat, the partition (5) being made of elastic plates; the protection component is connected to a hydrogen detection component for detecting whether hydrogen is leaking; the test bench (1) is connected to a hydrogen collection component for collecting leaked hydrogen; and the test bench (1) is connected to a moving component for moving the test bench (1) to a test position.

2. The hydrogen aging test device for the inner liner of a vehicle-mounted hydrogen storage cylinder according to claim 1 is characterized in that: The protection assembly comprises a protection cover (101) and a protection door (102); the protection cover (101) is fixedly connected to the test bench (1); and a plurality of protection doors (102) are dampingly slidably connected to the protection cover (101).

3. The hydrogen aging test device for the inner liner of a vehicle-mounted hydrogen storage cylinder according to claim 2 is characterized in that: The hydrogen aging test assembly comprises a first gas pump (201), an outlet pipe (204), a first collection box (205) and an inlet pipe (206); the first gas pump (201) is fixedly connected to the test bench (1); the inlet pipe (206) is fixedly connected to the air outlet of the first gas pump (201); the outlet of the first gas pump (201) is connected to the outlet pipe (204); the first collection box (205) for storing hydrogen is fixedly connected to the upper side of the protective cover (101); and the other end of the outlet pipe (204) is connected to the first collection box (205).

4. The hydrogen aging test device for the inner liner of a vehicle-mounted hydrogen storage cylinder according to claim 3 is characterized in that: The hydrogen collection assembly comprises a first connecting pipe (202), a second connecting pipe (203), a gas delivery pipe (207), a second collection box (208) and a second gas pump (209); the second gas pump (209) is fixedly connected to the test bench (1); an air inlet end of the second gas pump (209) is connected to the first connecting pipe (202); the other end of the first connecting pipe (202) is connected to the upper left side of the isolation cover (3); an air inlet end of the second gas pump (209) is connected to the second connecting pipe (203); the other end of the second connecting pipe (203) is connected to the lower left side of the isolation cover (3); an air outlet end of the second gas pump (209) is connected to the gas delivery pipe (207); a second collection box (208) for collecting leaked hydrogen is fixedly connected to the upper side of the first collection box (205); the other end of the gas delivery pipe (207) is connected to the second collection box (208).

5. The hydrogen aging test device for the inner liner of a vehicle-mounted hydrogen storage cylinder according to claim 4 is characterized in that: The impact simulation component comprises a driving member (301), an impact rod (302) and an isolation rod (303); the driving member (301) is fixedly connected to the test bench (1); the telescopic end of the driving member (301) is fixedly connected to the right side of the isolation cover (3); the impact rod (302) is fixedly connected to the left side of the isolation cover (3); an impact surface (30201) is arranged at the rear side of the impact rod (302); each partition (5) does not contact the impact surface (30201); a plurality of isolation rods (303) are slidably connected to the impact rod (302), and the isolation rods (303) are made of heat insulation material; each isolation rod (303) is fixedly connected to an adjacent partition (5).

6. The hydrogen aging test device for the inner liner of a vehicle-mounted hydrogen storage cylinder according to claim 3 is characterized by: The hydrogen detection assembly comprises a hydrogen detector (401), a first guide tube (402) and a second guide tube (403); the hydrogen detector (401) is fixedly connected to the front inner side of the protective cover (101); the air inlet of the hydrogen detector (401) is connected to the first guide tube (402); the other end of the first guide tube (402) is connected to the left side of the isolation cover (3); the first guide tube (402) is connected to the second guide tube (403); the other end of the second guide tube (403) is connected to the left side of the isolation cover (3).

7. The hydrogen aging test device for the inner liner of a vehicle-mounted hydrogen storage cylinder according to claim 5 is characterized by: The moving assembly comprises a pulley (501) and an armrest (502); a plurality of pulleys (501) are rotatably connected to the lower side of the test bench (1); and an armrest (502) is fixedly connected to the left side of the test bench (1).

8. The hydrogen aging test device for the inner liner of a vehicle-mounted hydrogen storage cylinder according to claim 5 is characterized in that: It also comprises a first baffle (304) and a second baffle (305); the first baffle (304) is fixedly connected to the partition (5) located on the upper side; and the second baffle (305) is fixedly connected to the guide plate (4) located on the lower side.

9. The on-vehicle hydrogen storage cylinder liner hydrogen aging test device according to claim 8 is characterized by: The first baffle plate (304) is provided with a first limiting portion (30401); the second baffle plate (305) is provided with a second limiting portion (30501).

10. The on-vehicle hydrogen storage cylinder liner hydrogen aging test device according to claim 9 is characterized in that: A guide surface (30502) is provided on the second baffle (305).

Images