Exhaust hydrogen eliminating device for fuel cell automobile

Abstract

The utility model discloses a fuel cell automobile exhaust hydrogen eliminating device which comprises a hydrogen adsorption box and a gas inlet pipe fixedly installed in the hydrogen adsorption box, and a gas outlet pipe is fixedly installed at the end, away from the gas inlet pipe, of the hydrogen adsorption box. High-temperature-resistant filter screens are clamped and mounted in the ends, close to the hydrogen adsorption box, of the gas inlet pipe and the gas outlet pipe, and water cooling blocks are fixedly mounted in the front and back of the hydrogen adsorption box. According to the exhaust hydrogen eliminating device for the fuel cell automobile, residual trace hydrogen of exhaust in the running process of the fuel cell automobile is eliminated, environmental pollution is reduced, the potential deflagration danger of the fuel cell automobile can be reduced, the safety of the fuel cell automobile is improved, after the adsorption capacity of the hydrogen eliminating device is saturated, the device can be directly replaced, and the cost is reduced. And after the hydrogen adsorption box with saturated adsorption releases hydrogen through physical reaction, the part of hydrogen can be reused, so that the hydrogen utilization rate is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to fuel cell automobile technical field, concretely is a fuel cell automobile tail exhaust hydrogen elimination device. BACKGROUND

[0002] With fuel cell automobile in global scope receives extensive attention, China highly values hydrogen energy and fuel cell industry development, actively explores hydrogen energy efficient application,

[0003] Fuel cell automobile in actual operation, the hydrogen gas that does not pass through fuel cell electric pile complete reaction will be with tail exhaust gas together and is discharged to the atmosphere, this part hydrogen gas although content is extremely low, but the complex reality road situation, easy existence potential safety hazard,

[0004] Or in fuel cell automobile park in airtight space, through time accumulation can cause hydrogen gas accumulation, if mishandling reaches hydrogen gas combustion lower limit, then easy to cause deflagration danger,

[0005] Current fuel cell automobile often does not design tail exhaust treatment device additionally, or uses electric heating wire heating and ignites hydrogen gas to carry out hydrogen removal, can produce open fire and explosion danger.

[0006] In view of above problem, the urgent need is on the basis of original device structure carries out innovation design. CONTENT OF UTILITY MODEL

[0007] The utility model discloses a kind of fuel cell automobile tail exhaust hydrogen elimination devices, to solve the problem that current fuel cell automobile often does not design tail exhaust treatment device additionally in the background technique described above, or uses electric heating wire heating and ignites hydrogen gas to carry out hydrogen removal, can produce open fire and explosion danger.

[0008] To achieve the above object, the utility model provides the following technical scheme: a kind of fuel cell automobile tail exhaust hydrogen elimination device, including hydrogen gas adsorption box and the air inlet pipe fixedly installed in hydrogen gas adsorption box interior;

[0009] The end fixedly installed with air outlet pipe of hydrogen gas adsorption box away from air inlet pipe, and the air inlet pipe and air outlet pipe are close to the end inside hydrogen gas adsorption box and are clamped and installed with high-temperature resistant filter screen, water cooling block is fixedly installed in the front and rear of hydrogen gas adsorption box;

[0010] Cooling structure for controlling the temperature of hydrogen gas adsorption box is arranged on the outside of hydrogen gas adsorption box, and the air inlet pipe and air outlet pipe are provided with dismounting structure for controlling the installation state of high-temperature resistant filter screen inside.

[0011] Preferably, the cooling structure comprises a liquid inlet pipe, and the liquid inlet pipe is fixedly installed at the lower end of the water cooling block, and a cooling pipe is fixedly installed at the upper end of the liquid inlet pipe, the cooling pipe is located inside the water cooling block, and the cooling pipe is distributed in an "S" shape inside the water cooling block.

[0012] Preferably, the upper end of the cooling pipe is fixedly installed with a liquid outlet pipe, and the upper end of the liquid outlet pipe is fixedly located outside the water cooling block.

[0013] Preferably, a heat exchanger is arranged outside the hydrogen adsorption box, an input end of the heat exchanger is fixedly connected with the liquid outlet pipe, and a cooling fan is fixedly installed outside the heat exchanger.

[0014] Preferably, a water pump is fixedly installed at the lower end of the hydrogen adsorption box, an output end of the water pump is fixedly connected with the liquid inlet pipe, the inside of the hydrogen adsorption box is filled with large specific surface active carbon particles, the size of the large specific surface active carbon particles is larger than the pore size of the high-temperature-resistant filter screen, and the hydrogen adsorption box is made of corrosion-resistant stainless steel.

[0015] Preferably, the dismounting structure comprises a handle and a sliding groove, the handle is fixedly installed outside the high-temperature-resistant filter screen, the inside of the high-temperature-resistant filter screen is provided with the sliding groove, and a clamping block is slidingly installed in the inside of the sliding groove, and a return spring is fixedly installed at one end of the clamping block close to the high-temperature-resistant filter screen.

[0016] Preferably, the clamping block is clamped and connected with the gas inlet pipe and the gas outlet pipe, respectively, and two groups of the clamping block and the return spring are arranged in the inside of the high-temperature-resistant filter screen.

[0017] Compared with the prior art, the hydrogen elimination device has the following beneficial effects:

[0018] 1. Eliminate the trace amount of hydrogen gas exhausted by the fuel cell vehicle during operation, reduce environmental pollution, and also reduce the potential risk of explosion of the fuel cell vehicle and hydrogen accumulation;

[0019] 2. Improve the safety of the fuel cell vehicle, and directly replace the device when the adsorption capacity of the hydrogen elimination device is saturated, thereby improving the ease of use of the device;

[0020] 3. Further, the hydrogen adsorption box saturated with adsorption can be reused after hydrogen is released through physical reaction, thereby improving the utilization rate of hydrogen;

[0021] 4. Further, by controlling the positional relationship between the clamping block and the high-temperature-resistant filter screen, the clamping block can be dismounted from the inside of the gas pipe, so that the high-temperature-resistant filter screen and the large specific surface active carbon particles can be replaced, thereby ensuring the filtering and adsorption effect of the device;

[0022] 5. Further, by setting the cooling liquid inside the cooling pipe as the ethylene glycol antifreeze, the heat dissipation of the device can be accelerated, and rapid cooling can be performed through the front and rear cooling pipes of the hydrogen adsorption box. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0024] Figure 2 It is a three-dimensional structure schematic diagram of the utility model water pump;

[0025] Figure 3 It is a three-dimensional structure schematic diagram of the utility model air inlet pipe;

[0026] Figure 4 It is a three-dimensional structure schematic diagram of the utility model water cooling block section;

[0027] Figure 5 It is a three-dimensional structure schematic diagram of the utility model air outlet pipe;

[0028] Figure 6 It is a three-dimensional structure schematic diagram of the utility model high-temperature-resistant filter screen;

[0029] Figure 7 It is a three-dimensional structure schematic diagram of the utility model air inlet pipe section;

[0030] Figure 8 It is a three-dimensional structure schematic diagram of the utility model high-temperature-resistant filter screen section.

[0031] In the figure: 1, hydrogen adsorption box; 2, air inlet pipe; 3, air outlet pipe; 4, high-temperature-resistant filter screen; 5, handle; 6, sliding groove; 7, clamping block; 8, return spring; 9, water cooling block; 10, liquid inlet pipe; 11, cooling pipe; 12, liquid outlet pipe; 13, heat exchanger; 14, cooling fan; 15, water pump. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0033] In specific embodiments, as shown in Figures 1-4 , the basic use process of the device is disclosed;

[0034] The hydrogen adsorption box 1 and the air inlet pipe 2 fixedly installed inside the hydrogen adsorption box 1;

[0035] The end of the hydrogen adsorption box 1 away from the inlet pipe 2 is fixedly installed with an outlet pipe 3, and the ends of the inlet pipe 2 and the outlet pipe 3 close to the hydrogen adsorption box 1 are fitted with high temperature resistant filter screens 4. Water cooling blocks 9 are fixedly installed inside the front and rear of the hydrogen adsorption box 1.

[0036] When using the hydrogen removal device for fuel cell vehicle exhaust, the device needs to be installed at the location where it is used, and the heat exchanger 13 needs to be fixedly supported.

[0037] The device can then remove hydrogen from the exhaust gas. During this process, the exhaust gas is discharged into the hydrogen adsorption box 1 through the inlet pipe 2, and the adsorbed exhaust gas is discharged through the outlet pipe 3. During this process, the hydrogen is adsorbed by the high specific surface area activated carbon particles inside the hydrogen adsorption box 1. The high specific surface area activated carbon particles inside the hydrogen adsorption box 1 can be replaced by disassembling two sets of high temperature resistant filter screens 4, thereby ensuring the adsorption effect of the device on hydrogen.

[0038] In one specific embodiment, such as Figures 1-8 The replacement process of the high-temperature resistant filter 4 inside the device is shown in the figure.

[0039] The air inlet pipe 2 and the air outlet pipe 3 are equipped with a disassembly structure to control the installation status of the high-temperature resistant filter screen 4.

[0040] The disassembly structure includes a handle 5 and a slide 6. The handle 5 is fixedly installed on the outside of the high-temperature resistant filter screen 4, and the slide 6 is opened inside the high-temperature resistant filter screen 4. A locking block 7 is slidably installed inside the slide 6, and a return spring 8 is fixedly installed at one end of the locking block 7 near the high-temperature resistant filter screen 4.

[0041] The locking block 7 is engaged with the air inlet pipe 2 and the air outlet pipe 3 respectively, and there are two sets of locking blocks 7 and return springs 8 inside the high temperature resistant filter screen 4.

[0042] When using the hydrogen removal device for fuel cell vehicles, the high-temperature resistant filter 4 needs to be replaced after a certain period of use. This can be done after the device has cooled to room temperature. During this process, simply pull the high-temperature resistant filter 4 outwards using the handle 5. As the filter 4 moves, the locking block 7 will be compressed and move into the slide groove 6. At this point, the locking block 7 will move away from the inlet pipe 2 and outlet pipe 3, and the return spring 8 will be compressed and contracted. After the locking block 7 separates from the inlet pipe 2 and outlet pipe 3, the high-temperature resistant filter 4 can be removed and replaced. The adsorbed particles inside the hydrogen adsorption box 1 can also be replaced.

[0043] Based on the above embodiments, such as Figures 1-5As shown, the heat dissipation process of the device is disclosed;

[0044] The outer side of the hydrogen adsorption box 1 is provided with a cooling structure for controlling the temperature of the hydrogen adsorption box 1.

[0045] The cooling structure comprises a liquid inlet pipe 10, and the liquid inlet pipe 10 is fixedly installed at the lower end of the water cooling block 9, and the upper end of the liquid inlet pipe 10 is fixedly installed with a cooling pipe 11, and the cooling pipe 11 is located inside the water cooling block 9, and the cooling pipe 11 is distributed in the "S" shape inside the water cooling block 9.

[0046] The upper end of the cooling pipe 11 is fixedly installed with a liquid outlet pipe 12, and the upper end of the liquid outlet pipe 12 is fixedly located outside the water cooling block 9.

[0047] The outer side of the hydrogen adsorption box 1 is provided with a heat exchanger 13, and the input end of the heat exchanger 13 is fixedly connected with the liquid outlet pipe 12, and the outer side of the heat exchanger 13 is fixedly installed with a cooling fan 14.

[0048] The lower end of the hydrogen adsorption box 1 is fixedly installed with a water pump 15, and the output end of the water pump 15 is fixedly connected with the liquid inlet pipe 10, the inside of the hydrogen adsorption box 1 is filled with large specific surface activated carbon particles, and the size of the large specific surface activated carbon particles is larger than the pore size of the high-temperature resistant filter screen 4, and the hydrogen adsorption box 1 is made of corrosion-resistant stainless steel material.

[0049] When the fuel cell automobile exhaust hydrogen elimination device is used, the high-temperature gas will cause the temperature of the hydrogen adsorption box 1, the gas inlet pipe 2 and the gas outlet pipe 3 to rise, at this time the water pump 15 will pump the cooling liquid into the inside of the liquid inlet pipe 10, and through the liquid inlet pipe 10 to the inside of the cooling pipe 11 and the liquid outlet pipe 12, the cooling liquid in the inside of the cooling pipe 11 will absorb the heat transferred to the inside of the water cooling block 9 from the hydrogen adsorption box 1, so as to accelerate the loss of heat in the inside of the hydrogen adsorption box 1, and after the cooling liquid absorbs the heat, it will be transported to the inside of the heat exchanger 13 through the liquid outlet pipe 12, at this time the grid plate in the inside of the heat exchanger 13 will absorb the heat and transfer the heat with the air, at the same time the cooling fan 14 will work and blow the heat exchanger 13, accelerate the heat loss in the inside of the heat exchanger 13, so as to complete the heat dissipation process of the device, increase the practicability of the whole.

[0050] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0051] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A fuel cell vehicle tail exhaust hydrogen elimination device, comprising a hydrogen adsorption cartridge (1) and an air inlet pipe (2) fixedly installed inside the hydrogen adsorption cartridge (1). characterized in that An air outlet pipe (3) is fixedly installed at one end of the hydrogen adsorption cartridge (1) away from the air inlet pipe (2), and a high-temperature-resistant filter screen (4) is clamped and installed inside the end of the air inlet pipe (2) and the air outlet pipe (3) close to the hydrogen adsorption cartridge (1), and water cooling blocks (9) are fixedly installed inside the hydrogen adsorption cartridge (1) front and back. A cooling structure for controlling the temperature of the hydrogen adsorption cartridge (1) is arranged on the outside of the hydrogen adsorption cartridge (1), and a dismounting structure for controlling the installation state of the high-temperature-resistant filter screen (4) is arranged inside the air inlet pipe (2) and the air outlet pipe (3).

2. A fuel cell vehicle exhaust hydrogen elimination device according to claim 1, characterized by: The cooling structure comprises a liquid inlet pipe (10) fixedly installed at the lower end of the water cooling block (9), and a cooling pipe (11) fixedly installed at the upper end of the liquid inlet pipe (10), wherein the cooling pipe (11) is located inside the water cooling block (9) and is distributed in an "S" shape inside the water cooling block (9).

3. A fuel cell vehicle exhaust hydrogen elimination device according to claim 2, characterized by: The upper end of the cooling pipe (11) is fixedly installed with a liquid outlet pipe (12), and the upper end of the liquid outlet pipe (12) is fixedly located outside the water cooling block (9).

4. The hydrogen elimination device for fuel cell vehicle exhaust according to claim 1, characterized by: A heat exchanger (13) is arranged on the outside of the hydrogen adsorption cartridge (1), the input end of the heat exchanger (13) is fixedly connected with the liquid outlet pipe (12), and a heat dissipation fan (14) is fixedly installed on the outside of the heat exchanger (13).

5. The hydrogen elimination device for fuel cell vehicle exhaust according to claim 1, characterized by: A water pump (15) is fixedly installed at the lower end of the hydrogen adsorption cartridge (1), and the output end of the water pump (15) is fixedly connected with the liquid inlet pipe (10), the inside of the hydrogen adsorption cartridge (1) is filled with large specific surface area activated carbon particles, the size of the large specific surface area activated carbon particles is larger than the pore size of the high-temperature-resistant filter screen (4), and the hydrogen adsorption cartridge (1) is made of corrosion-resistant stainless steel.

6. The hydrogen elimination device for fuel cell vehicle exhaust according to claim 1, characterized by: The dismounting structure comprises a handle (5) and a sliding groove (6), the handle (5) is fixedly installed on the outside of the high-temperature-resistant filter screen (4), the sliding groove (6) is formed in the inside of the high-temperature-resistant filter screen (4), and a clamping block (7) is slidingly installed in the inside of the sliding groove (6), and the end of the clamping block (7) close to the high-temperature-resistant filter screen (4) is fixedly installed with a return spring (8).

7. A fuel cell vehicle exhaust hydrogen elimination device according to claim 6, characterized by: The clamping block (7) is clamped and connected with the air inlet pipe (2) and the air outlet pipe (3), and two sets of clamping blocks (7) and return springs (8) are arranged inside the high-temperature-resistant filter screen (4).

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