A device for controlling temperature and pressure of a methanol hydrogen generator

Abstract

The application provides a device for controlling temperature and pressure of a methanol hydrogen generator, comprising: a hydrogen internal combustion engine, an exhaust pipe of the hydrogen internal combustion engine being connected with a methanol reforming hydrogen generator; a temperature and pressure control mechanism, the temperature and pressure control mechanism being arranged on the exhaust pipe of the hydrogen internal combustion engine; the temperature and pressure control mechanism comprising a water cooling assembly and a pressure relief valve, the water cooling assembly being internally provided with a heat dissipation coil pipe, the pressure relief valve being arranged in the methanol reforming hydrogen generator; a water squeezing mechanism, the water squeezing mechanism being connected with a water distribution pipe; the water distribution pipe being laid to the back side of the heat dissipation coil pipe, and the back side of the heat dissipation coil pipe being provided with a blowing part. Hydrogen generated by the methanol reforming hydrogen generator is supplied to the hydrogen internal combustion engine, and the hot flow gas discharged by the hydrogen internal combustion engine is used to heat the methanol reforming hydrogen generator, so that the heat of the discharged gas is utilized and waste is avoided; meanwhile, the temperature and pressure control mechanism is arranged on the exhaust pipe to adjust the temperature and gas pressure of the hot flow gas entering the methanol reforming hydrogen generator, so that the two are kept in an optimal range.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of hydrogen fuel cells, in particular to a device for controlling the temperature and pressure of a methanol hydrogen generator. BACKGROUND

[0002] Global new energy product technologies are divided into three technical routes: pure electric, plug-in hybrid (including series, parallel, and hybrid), and hydrogen fuel cells. However, each has its own shortcomings, such as short driving range, high cost, and great technical difficulty. Methanol is a relatively safe, economical, and abundant fuel that is easy to store and transport, and has been widely recognized and promoted at home and abroad.

[0003] Current product technologies that use methanol as fuel include: 1. Combining a methanol engine with a generator to generate electricity and charge lithium batteries, or directly using a methanol engine as power to drive. However, methanol engines have problems such as cold start difficulty, incomplete combustion, low engine power, and corrosion of parts; 2. Using methanol to produce hydrogen, which is used to generate electricity in a fuel cell and then charge lithium batteries. The disadvantage of this structure is that the cost of fuel cells is too high, and the purity of hydrogen is also very high.

[0004] By improving the above technical solutions, the following scheme is developed: combining a methanol reforming hydrogen generator with a hydrogen internal combustion engine and a generator, and generating electricity through control system adjustment. The advantage of this structure combination is that it can realize mobile power generation, and significantly reduce the cost compared to the fuel cell power generation technical route, especially the difficulty of hydrogen fuel use (storage, transportation, refueling, safety).

[0005] However, methanol reforming hydrogen requires a large amount of heat, which is currently provided by external heating equipment. The waste heat from the hydrogen internal combustion engine is not utilized, resulting in waste of exhaust heat from the hydrogen internal combustion engine. SUMMARY

[0006] The present application solves the technical problem of how to utilize the exhaust temperature of the hydrogen internal combustion engine and maintain the temperature and pressure of the hydrogen generator gasification part within the optimal range. A device for controlling the temperature and pressure of a methanol hydrogen generator is provided.

[0007] The present application solves the above technical problems through the following technical solutions:

[0008] The application provides a device for controlling temperature and pressure of a methanol hydrogen generator, comprising: a hydrogen internal combustion engine, a methanol reforming hydrogen generator connected to an exhaust pipe of the hydrogen internal combustion engine, and the hydrogen internal combustion engine being heated by high-temperature gas discharged from the exhaust pipe; a temperature and pressure control mechanism arranged on the exhaust pipe of the hydrogen internal combustion engine; the temperature and pressure control mechanism comprising a water cooling assembly and a pressure relief valve, the water cooling assembly being provided with a heat dissipation coil pipe for cooling water heat dissipation, and the pressure relief valve being arranged in the methanol reforming hydrogen generator; a water squeezing mechanism connected with a water distribution pipe, one end of the water distribution pipe being closed, the other end being open, and a plurality of water outlet holes being uniformly arranged on the pipe wall of the water distribution pipe; the water distribution pipe being laid to the back side of the heat dissipation coil pipe, and a blowing part being arranged behind the back side of the heat dissipation coil pipe; and a filter screen arranged at an air inlet position of the blowing part and provided with a cleaning mechanism.

[0009] In the technical solution, the exhaust gas of the hydrogen internal combustion engine is recycled to avoid heat waste, and the temperature and pressure control mechanism is used to control the temperature and pressure, so that the temperature of the methanol reforming hydrogen generator gasification part is kept in the optimal temperature and pressure range.

[0010] Preferably, the gas temperature and pressure in the methanol reforming hydrogen generator are 250-300 DEG C and 0.1-0.5 MPa respectively.

[0011] Preferably, the water cooling assembly comprises a wrapping sleeve, a water tank, a cooling box and a water pump, a bottom frame is fixedly installed at the bottom of the water tank, a water pump is fixedly installed on one side wall of the bottom frame, a water suction pipe is connected to the water inlet of the water pump, the wrapping sleeve is fixedly sleeved to the outer wall of the exhaust pipe of the hydrogen internal combustion engine, a water cavity is formed between the inner wall of the wrapping sleeve and the outer wall of the exhaust pipe, one end of the water suction pipe away from the water pump is fixedly connected to one end of the wrapping sleeve, the water suction pipe is in communication with the water cavity, a connecting pipe is fixedly connected to the other end of the wrapping sleeve, the connecting pipe is fixedly connected to the bottom of the water tank, and the connecting pipe is in communication with the water cavity and the water tank at two ends respectively, a water return pipe is connected to the water outlet of the water pump, the water return pipe is connected to one end of the heat dissipation coil pipe, the heat dissipation coil pipe is installed in the cooling box, and one end of the heat dissipation coil pipe away from the water return pipe extends into the water tank, an upper opening in communication with the bottom of the cooling box is arranged at the top of the water tank, and a water inlet is fixedly installed at the front side of the top of the water tank.

[0012] In the technical solution, the cooling water is injected into the water cavity surrounding the exhaust pipe in real time to cool the gas in the exhaust pipe, temperature control is realized, and the water in the water cavity is cooled in the heat dissipation coil pipe before flowing back to the water tank, so that the low-temperature water flowing back to the water tank is maintained, and the cooling of the flowing gas in the exhaust pipe is ensured.

[0013] Preferably, two symmetrical flow guides are fixedly installed in the bottom of the cooling box, and a gap aligned with the upper opening is formed between the two flow guides; the distance between the flow guides and the top of the water tank gradually increases away from the gap.

[0014] In the technical solution, the flow guides are used for guiding the water in the cooling box to enter the water tank through the upper opening.

[0015] Preferably, the air blowing part comprises an air inlet, a motor, a first rotating shaft, a first bevel gear, a second bevel gear and a fan blade; the air inlet is fixedly connected to the rear side of the cooling box, and a plurality of mounting racks are fixedly installed in the air inlet at equal intervals; the middle part of each of the mounting racks is rotatably installed with a fan blade; the middle part of the fan blade is fixedly installed with a second bevel gear; the second bevel gear is meshingly connected with the first bevel gear; the first bevel gear is fixedly sleeved on the first rotating shaft; the first rotating shaft is rotatably installed in the cooling box; the motor is fixedly installed on one side of the outer wall of the air inlet; and the output shaft end of the motor is fixedly connected with one end of the first rotating shaft.

[0016] In the technical solution, the air blowing part is used for blowing the heat dissipation coil to provide heat dissipation and cooling.

[0017] Preferably, the filter screen is fixedly installed on the side of the air inlet away from the cooling box; and the front side of the cooling box is fixedly connected with an air outlet.

[0018] In the technical solution, the filter screen is used for filtering the air entering the air inlet, and the air outlet is used for discharging the airflow after the heat dissipation coil is blown.

[0019] Preferably, the water squeezing mechanism comprises a first protective shell, a second protective shell, a first water pipe, a third rotating shaft, a fifth bevel gear, a cam, a push plate, a soft bag, a first one-way valve and a second one-way valve; a groove is formed in one side of the cooling box; the first protective shell is fixedly fitted into the groove; the back surface of the first protective shell is fixedly installed with the second protective shell; the third rotating shaft is rotatably installed in the second protective shell; one end of the first rotating shaft extends into the second protective shell; one end of the first rotating shaft in the second protective shell and one end of the third rotating shaft are fixedly sleeved with a fifth bevel gear; the two fifth bevel gears are meshingly connected; one end of the third rotating shaft extends into the first protective shell; one end of the third rotating shaft in the first protective shell is fixedly installed with a cam; the push plate abuts one side of the cam; the soft bag is arranged on one side of the push plate; the first one-way valve and the second one-way valve are installed on the side of the soft bag away from the push plate; the first water pipe is connected with the first one-way valve; the first water pipe extends into the water tank; and the second one-way valve is connected with one end of the water distribution pipe.

[0020] In the technical solution, the water squeezing mechanism is used for squeezing water into the water distribution pipe, so that the heat dissipation coil is uniformly dispersed with water for evaporation.

[0021] Preferably, a plurality of reset springs are arranged between the push plate and the heat dissipation coil pipe, one end of the reset spring is fixedly connected with the push plate, and the other end of the reset spring is fixedly connected with the heat dissipation coil pipe.

[0022] In the technical solution, the reset spring is used for resetting the push plate.

[0023] Preferably, the cleaning mechanism is connected with a transmission part, the transmission part comprises a second rotating shaft, a third bevel gear and a fourth bevel gear, the bottom end of the second rotating shaft is fixedly connected with the fourth bevel gear, the fourth bevel gear is in meshing connection with the third bevel gear, and the third bevel gear is fixedly sleeved on the first rotating shaft.

[0024] In the technical solution, the transmission mechanism is used for driving the cleaning mechanism.

[0025] Preferably, the cleaning mechanism comprises a cleaning brush, a movable strip, a connecting rod, a protective cover, a hinged shaft and a sliding sleeve, the protective cover is fixedly installed on the top of the cooling box, the top end of the second rotating shaft extends into the protective cover, one end of the second rotating shaft in the protective cover is fixedly connected with one end of the connecting rod, the other end of the connecting rod is rotatably installed with the hinged shaft, the hinged shaft is fixedly connected with the sliding sleeve, the sliding sleeve is slidably installed on the movable strip, the movable strip is in sliding connection with a sliding groove formed on one side of the protective cover, the sliding groove and the movable strip are arranged perpendicularly, the movable strip is fixedly connected with the cleaning brush, and the bristles of the cleaning brush are attached to the filter screen.

[0026] In the technical solution, the cleaning mechanism is used for cleaning the filter screen.

[0027] Preferably, the hydrogen internal combustion engine is connected with a generator set, the hydrogen internal combustion engine and the generator set are connected with the lithium battery assembly, the methanol reforming hydrogen generator is connected with a hydrogen compressor, the hydrogen compressor is connected with a hydrogen cylinder, and the hydrogen cylinder is connected with the hydrogen internal combustion engine.

[0028] On the basis of common knowledge in the art, the above-mentioned preferred conditions can be combined arbitrarily, that is, each preferred example of the present application is obtained.

[0029] The positive progress effect of the present application is that:

[0030] The aforementioned device for controlling the temperature and pressure of a methanol-to-hydrogen generator supplies hydrogen produced by the methanol reforming hydrogen generator to a hydrogen internal combustion engine. The hot gas exhaust from the hydrogen internal combustion engine heats the methanol reforming hydrogen generator, utilizing the heat from the exhaust gas to avoid waste. Simultaneously, a temperature and pressure control mechanism is installed on the exhaust pipe to regulate the temperature and pressure of the hot gas entering the methanol reforming hydrogen generator, maintaining both within optimal ranges. Furthermore, the water-cooling component of the temperature and pressure control mechanism is an improvement over conventional technology. While the cooling coil and the blower unit cool the returning cooling water, a water squeezing mechanism injects water into the water distribution pipes laid on the cooling coil. The water is evenly distributed to the back of the cooling coil through the water outlet holes on the water distribution pipes. Combined with the blower unit blowing air onto the back of the cooling coil, the water evaporates on the cooling coil to improve the cooling effect. At the same time, the blower unit is equipped with a filter screen to filter the airflow blown towards the cooling coil. A cleaning mechanism is installed on the filter screen for real-time cleaning to keep the filter screen clean, prevent clogging, and avoid affecting the flow of airflow. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall front structure of the present invention.

[0032] Figure 2 This is a schematic diagram of the overall rear structure of the present invention.

[0033] Figure 3 This is a schematic diagram of the internal structure of the packaging sleeve and the surrounding structure of the water tank of the present invention.

[0034] Figure 4 This is a schematic diagram of the internal structure of the cooling tank and water tank of the present invention.

[0035] Figure 5 This is a schematic diagram of the internal structure of the cooling box and protective cover of the present invention.

[0036] Figure 6 This is a schematic diagram of the water-squeezing mechanism and the interior of the air inlet of the present invention.

[0037] Figure 7 For the present invention Figure 6 Enlarged structural diagram of section A in the middle.

[0038] Figure 8 This is a schematic diagram of the cleaning mechanism of the present invention.

[0039] Figure 9 This is a schematic diagram of the structure of the heat dissipation coil and water distribution pipe of the present invention.

[0040] Figure 10 This is a schematic diagram of the hydrogen fuel cell using a methanol reforming hydrogen production machine according to the present invention.

[0041] Explanation of reference numerals in the attached figures

[0042] 1. Temperature and pressure control mechanism; 101. Base frame; 102. Water tank; 1021. Water inlet; 1022. Upper opening; 103. Cooling tank; 104. Water pump; 105. Water suction pipe; 106. Wrapping sleeve; 107. Water return pipe; 108. Air outlet; 109. Air inlet; 110. Motor; 111. Connection pipe; 112. Filter screen; 113. Radiator coil; 1131. Water distribution pipe; 114. Flow guide plate; 115. First rotating shaft; 116. First bevel gear; 117. Second bevel gear; 118. Mounting frame; 119. Fan blade; 120. Third bevel gear; 121. Fourth bevel gear; 122. Second rotating shaft; 123. Pressure relief valve;

[0043] 2. Cleaning mechanism; 201. Cleaning brush; 202. Movable strip; 203. Connecting rod; 204. Protective cover; 205. Hinge shaft; 206. Slide sleeve; 207. Slide groove;

[0044] 3. Exhaust pipe;

[0045] 4. Water squeezing mechanism; 401. First protective shell; 402. Second protective shell; 403. First water pipe; 404. Third rotating shaft; 405. Fifth bevel gear; 406. Cam; 407. Push plate; 408. Soft bag; 409. Reset spring; 410. First one-way valve; 411. Second one-way valve;

[0046] 5. Hydrogen internal combustion engine;

[0047] 6. Generator set;

[0048] 7. Methanol reforming hydrogen generator;

[0049] 8. Hydrogen compressor;

[0050] 9. Hydrogen cylinder;

[0051] 10. Lithium battery assembly. DETAILED DESCRIPTION

[0052] The present application will be further described by way of examples, but the present application is not limited to the examples.

[0053] As Figures 1-10As shown, a device for controlling the temperature and pressure of a methanol-to-hydrogen generator includes: a hydrogen internal combustion engine 5, the exhaust pipe 3 of which is connected to a methanol reforming hydrogen generator 7, wherein the high-temperature gas discharged from the exhaust pipe 3 of the hydrogen internal combustion engine 5 supplies heat to the methanol reforming hydrogen generator 7; a temperature and pressure control mechanism 1, which is disposed on the exhaust pipe 3 of the hydrogen internal combustion engine 5; the temperature and pressure control mechanism 1 includes a water-cooling assembly and a pressure relief valve 123, wherein the water-cooling assembly is provided with a heat dissipation coil 113 for cooling water; and the pressure relief valve 123... Pressure valve 123 is installed in methanol reforming hydrogen production machine 7; water squeezing mechanism 4 is connected to water distribution pipe 1131, one end of water distribution pipe 1131 is closed and the other end is open, and several fine water outlet holes are evenly arranged on the pipe wall of water distribution pipe 1131; water distribution pipe 1131 is laid to the back side of heat dissipation coil 113, and a blowing section is provided behind the back side of heat dissipation coil 113; filter screen 112 is set at the air inlet position of the blowing section, and a cleaning mechanism 2 is provided on the filter screen 112.

[0054] like Figure 10 As shown, in a specific implementation, it also includes a lithium battery assembly 10; the hydrogen internal combustion engine 5 is connected to a generator set 6, and both the hydrogen internal combustion engine 5 and the generator set 6 are connected to the lithium battery assembly 10; the methanol reforming hydrogen generator 7 is connected to a hydrogen compressor 8, the hydrogen compressor 8 is connected to a hydrogen cylinder 9, and the hydrogen cylinder 9 is connected to the hydrogen internal combustion engine 5.

[0055] The above proposes an improved structure for using methanol as fuel in hydrogen fuel cells.

[0056] Specifically, the above structure uses the electricity from the lithium battery assembly 10 and the hydrogen from the hydrogen cylinder 9 to start the hydrogen internal combustion engine 5; the hydrogen produced by the methanol reforming hydrogen generator 7 is input into the hydrogen cylinder 9 through a hydrogen booster pump; the hydrogen in the hydrogen cylinder 9 supplies the hydrogen internal combustion engine 5; the hydrogen internal combustion engine 5 drives the generator 110 to generate electricity, which is input into the lithium battery assembly 10.

[0057] Hydrogen from the methanol reforming hydrogen generator 7 is fed into a hydrogen cylinder 9 via a pipeline and a hydrogen compressor 8. The hydrogen in the hydrogen cylinder 9 is injected into a hydrogen internal combustion engine 5 via a pipeline to burn and do work. A generator 110 is installed at the power output end of the hydrogen internal combustion engine 5, and the generated current is fed into a lithium battery pack via wires and a control device. A high-temperature gas flow is drawn out from the exhaust pipe 3 of the hydrogen internal combustion engine 5 to heat the methanol hydrogen generator.

[0058] The above structure is developed based on the current national promotion of hydrogen fuel cell vehicles, which has the problems of difficult hydrogen storage, hydrogen transportation and hydrogen refueling, high cost of fuel cell, low efficiency of mobile hydrogen production, etc. Currently, hydrogen storage and transportation for fuel cell vehicles use 35 MPa or even 70 MPa pressure vessels, which is very high in cost and requires high construction requirements for hydrogen refueling stations, and is very dangerous, even causing explosion accidents. In addition, the fuel cell technology is difficult, the cost is high, the service life is short, and 99.99% pure hydrogen is required. Although the hydrogen fuel cell vehicle has a longer driving range than the pure electric vehicle, it is not suitable for mass market due to the above problems.

[0059] The above structure is developed by adding methanol to replace hydrogenation. Methanol is a relatively safe, economical, abundant and convenient fuel for storage and transportation, which can solve the above problems.

[0060] Further, the high-temperature gas stream discharged from the exhaust pipe 3 of the hydrogen internal combustion engine 5 is used to heat the methanol hydrogen generator, realizing the utilization of exhaust gas heat and avoiding direct discharge and waste.

[0061] In specific implementation, the optimal temperature for methanol reforming to produce hydrogen is 250-300°C, and the optimal pressure is 0.1-0.5 MPa. Based on the above, further improvement is made. The high-temperature gas discharged from the exhaust pipe 3 of the hydrogen internal combustion engine 5 is cooled to control the temperature of the gas entering the hydrogen generator within the range of 250-300°C, and the gas pressure is controlled by a pressure relief valve to maintain 0.1-0.5 MPa.

[0062] The temperature and pressure control in the above structure is realized by the temperature and pressure control mechanism 1.

[0063] Specifically, when the temperature of the exhaust pipe 3 of the hydrogen internal combustion engine 5 reaches a certain 250°C, the hot gas stream is introduced from the exhaust pipe 3 to heat the methanol reforming hydrogen generator 7.

[0064] The inlet and outlet of the exhaust pipe 3 are respectively provided with temperature sensors for feedback sensing. The motor 110 and water pump 104 in the temperature and pressure control mechanism 1 are connected with the control system, and the motor 110 and water pump 104 are controlled, such as the control of the rotating speed, through the feedback signal of the feedback sensing.

[0065] The gas temperature and gas pressure in the methanol reforming hydrogen generator 7 are respectively 250-300°C and 0.1-0.5 MPa. The temperature and pressure are controlled and adjusted by the temperature and pressure control mechanism 1.

[0066] As Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, as a specific technical scheme, the water cooling assembly includes a wrapping sleeve 106, a water tank 102, a cooling box 103, and a water pump 104; the bottom of the water tank 102 is fixedly installed with a chassis 101, one side wall of the chassis 101 is fixedly installed with the water pump 104, the water inlet of the water pump 104 is connected with a water suction pipe 105, the wrapping sleeve 106 is fixedly sleeved to the outer wall of the exhaust pipe 3 of the hydrogen internal combustion engine 5, and a water cavity is surrounded between the inner wall of the wrapping sleeve 106 and the outer wall of the exhaust pipe 3, one end of the water suction pipe 105 away from the water pump 104 is fixedly connected with one end of the wrapping sleeve 106, and the water suction pipe 105 is in communication with the water cavity, the other end of the wrapping sleeve 106 is fixedly connected with a connecting pipe 111, and the connecting pipe 111 is fixedly connected with the bottom of the water tank 102, and the connecting pipe 111 is in communication with the water cavity and the water tank 102 at both ends; the water outlet of the water pump 104 is connected with a water return pipe 107, the water return pipe 107 is connected with one end of a heat dissipation coil pipe 113, and the heat dissipation coil pipe 113 is installed in the cooling box 103, and one end of the heat dissipation coil pipe 113 away from the water return pipe 107 extends into the water tank 102; the top of the water tank 102 is provided with an upper opening 1022 in communication with the bottom of the cooling box 103, and the top of the water tank 102 is fixedly installed with a water inlet 1021 on the front side.

[0067] The water in the water tank 102 is discharged into the water cavity through the connecting pipe 111 to provide cooling for the exhaust pipe 3, the water in the water cavity is sucked by the water pump 104, the water enters the heat dissipation coil pipe 113 through the water suction pipe 105, the water pump 104, and the water return pipe 107, is cooled by heat dissipation in the heat dissipation coil pipe 113, and then returns to the water tank 102, and through the above, circulation is realized to cool the exhaust pipe 3.

[0068] As shown in the figure, Figures 5-6 The blowing part includes an air inlet 109, a motor 110, a first rotating shaft 115, a first bevel gear 116, a second bevel gear 117, and a fan blade 119; the air inlet 109 is fixedly communicated to the rear side of the cooling box 103, and a plurality of mounting racks 118 are fixedly installed in the air inlet 109 at equal intervals, the middle part of each of the mounting racks 118 is rotatably installed with the fan blade 119, the middle part of the fan blade 119 is fixedly installed with the second bevel gear 117, the second bevel gear 117 is meshingly connected with the first bevel gear 116, the first bevel gear 116 is fixedly sleeved to the first rotating shaft 115, the first rotating shaft 115 is rotatably installed in the cooling box 103, and the motor 110 is fixedly installed to one side outer wall of the air inlet 109, and one end of the output shaft of the motor 110 is fixedly connected with one end of the first rotating shaft 115.

[0069] The filter screen 112 is fixedly installed to one side of the air inlet 109 away from the cooling box 103, and the front side of the cooling box 103 is fixedly communicated with an air outlet 108.

[0070] When the water is cooled in the heat dissipation coil 113, the motor 110 drives the first rotating shaft 115 to rotate, and through the meshing between the first bevel gear 116 and the second bevel gear 117, the fan blade 119 is rotated to generate air flow for heat dissipation. The external air enters through the air inlet 109, is filtered by the filter screen 112, and then is blown to the heat dissipation coil 113 to be cooled, and the cooled air is discharged through the air outlet 108.

[0071] As shown in Figures 4-7 The water squeezing mechanism 4 includes a first protective shell 401, a second protective shell 402, a first water pipe 403, a third rotating shaft 404, a fifth bevel gear 405, a cam 406, a push plate 407, a soft bag 408, a first one-way valve 410 and a second one-way valve 411. One side of the cooling box 103 is provided with a groove, and the first protective shell 401 is fixedly embedded in the groove. The back surface of the first protective shell 401 is fixedly installed with the second protective shell 402. The third rotating shaft 404 is rotatably installed in the second protective shell 402. One end of the first rotating shaft 115 extends into the second protective shell 402. One end of the first rotating shaft 115 in the second protective shell 402 and one end of the third rotating shaft 404 are both fixedly sleeved with a fifth bevel gear 405. The two fifth bevel gears 405 are meshed and connected. One end of the third rotating shaft 404 extends into the first protective shell 401. One end of the third rotating shaft 404 in the first protective shell 401 is fixedly installed with the cam 406. One side of the cam 406 abuts against the push plate 407. The push plate 407 is provided with the soft bag 408 on one side. The soft bag 408 is installed with the first one-way valve 410 and the second one-way valve 411 on the side away from the push plate 407. The first one-way valve 410 is connected with the first water pipe 403. The first water pipe 403 extends into the water tank 102. The second one-way valve 411 is connected with one end of the water distribution pipe 1131.

[0072] A plurality of reset springs 409 are arranged between the push plate 407 and the heat dissipation coil 113. One end of the reset spring 409 is fixedly connected with the push plate 407. The other end of the reset spring 409 is fixedly connected with the heat dissipation coil 113.

[0073] When the heat dissipation coil 113 is blown, the fifth bevel gear 405 on the first rotating shaft 115 rotates with it, and through the meshing transmission between the two fifth bevel gears 405, the third rotating shaft 404 drives the cam 406 to rotate, which provides a push to one side of the push plate 407 while compressing the reset spring 409, and the push plate 407 compresses the soft bag 408, so that the water in the soft bag 408 enters the water distribution pipe 1131 through the second one-way valve 411, and then is discharged from the water outlet hole of the water distribution pipe 1131, and the water adhering to the back side of the heat dissipation coil 113 is dispersed, and in the process of blowing and dissipating heat, the adhering water is evaporated, improving the heat dissipation effect.

[0074] The reset spring 409 provides reset for the push plate 407, and when the push plate 407 is reset, the push plate 407 drives the soft bag 408 to reset, and the volume increases, and the water in the water tank 102 is sucked through the first water pipe 403 and the first one-way valve 410 to supplement the soft bag 408.

[0075] Through the above, the water in the water distribution pipe 1131 is injected reciprocally.

[0076] The soft bag 408 is made of rubber material, and the shape is a cylindrical bellows with both ends closed.

[0077] As shown in Figure 5 , the bottom of the cooling box 103 is fixedly provided with two symmetrical flow guides 114, and a gap aligned with the upper opening 1022 is formed between the two flow guides 114; the distance between the flow guide 114 and the top of the water tank 102 gradually increases away from the gap.

[0078] The water adhering to the heat dissipation coil 113 drips down and is guided by the flow guide 114 into the water tank 102 from the gap and the upper opening 1022.

[0079] As shown in Figure 2 , Figure 5 , Figure 6 and Figure 8 , the cleaning mechanism 2 is connected with a transmission part, and the transmission part includes a second rotating shaft 122, a third bevel gear 120 and a fourth bevel gear 121; the bottom end of the second rotating shaft 122 is fixedly connected with the fourth bevel gear 121, the fourth bevel gear 121 is meshingly connected with the third bevel gear 120, and the third bevel gear 120 is fixedly sleeved on the first rotating shaft 115.

[0080] The cleaning mechanism 2 comprises a cleaning brush 201, a movable strip 202, a connecting rod 203, a protective cover 204, a hinged shaft 205 and a sliding sleeve 206; the protective cover 204 is fixedly installed on the top of the cooling box 103, the top end of the second rotating shaft 122 extends into the protective cover 204, one end of the second rotating shaft 122 in the protective cover 204 is fixedly connected with one end of the connecting rod 203, the other end of the connecting rod 203 is rotatably installed with the hinged shaft 205, the hinged shaft 205 is fixedly connected with the sliding sleeve 206, the sliding sleeve 206 is slidably installed on the movable strip 202, the movable strip 202 is slidably connected with a sliding groove 207 formed on one side of the protective cover 204, and the sliding groove 207 is vertically arranged with the movable strip 202, the movable strip 202 is fixedly connected with the cleaning brush 201, and the bristles of the cleaning brush 201 are attached to the filter screen 112.

[0081] When the first rotating shaft 115 rotates, the third bevel gear 120 on the first rotating shaft 115 rotates, the second rotating shaft 122 is driven to rotate through the meshing transmission of the third bevel gear 120 and the fourth bevel gear 121, the connecting rod 203 is driven to rotate by the second rotating shaft 122, the movable rod is pulled to move by the connecting rod 203 through the sliding sleeve 206, the sliding sleeve 206 slides in the length direction of the movable rod, the movable rod is guided through the sliding groove 207, the cleaning brush 201 is driven to reciprocatingly move left and right, and the cleaning brush 201 reciprocatingly cleans the filter screen 112 to keep the filter screen 112 clean.

[0082] The present application is not limited to the above-mentioned embodiments, and any change in shape or structure falls within the protection scope of the present application. The protection scope of the present application is defined by the appended claims, and those skilled in the art can make various changes or modifications to the embodiments without departing from the principles and essence of the present application, and these changes and modifications fall within the protection scope of the present application.

Claims

1. A device for controlling the temperature and pressure of a methanol hydrogen generator, characterized by, The utility model relates to a hydrogen internal combustion engine (5) exhaust pipe (3) is connected with methanol reforming hydrogen generator (7), and the high temperature gas exhausted from the hydrogen internal combustion engine (5) exhaust pipe (3) is heated for the methanol reforming hydrogen generator (7);Temperature and pressure control mechanism (1) is arranged on the hydrogen internal combustion engine (5) exhaust pipe (3), and the temperature and pressure control mechanism (1) includes water cooling assembly and pressure relief valve (123), the water cooling assembly is provided with the heat dissipation coil pipe (113) for cooling water heat dissipation, and the pressure relief valve (123) is arranged in the methanol reforming hydrogen generator (7); The water squeezing mechanism (4) is connected with the water distribution pipe (1131), one end of the water distribution pipe (1131) is closed, the other end is opened, and a plurality of water outlet fine holes are uniformly arranged on the pipe wall of the water distribution pipe (1131);The water distribution pipe (1131) is laid to the back side of the heat dissipation coil pipe (113), and a blowing part is arranged behind the back side of the heat dissipation coil pipe (113); The filter screen (112) is arranged at the air inlet position of the blowing part, and the filter screen (112) is provided with a cleaning mechanism (2); The water cooling assembly includes a wrapping sleeve (106), a water tank (102), a cooling box (103), and a water pump (104). The bottom of the water tank (102) is fixedly installed with a chassis (101), one side wall of the chassis (101) is fixedly installed with a water pump (104), the water inlet of the water pump (104) is connected with a water suction pipe (105), the wrapping sleeve (106) is fixedly sleeved to the outer wall of the exhaust pipe (3) of the hydrogen internal combustion engine (5), and a water cavity is formed between the inner wall of the wrapping sleeve (106) and the outer wall of the exhaust pipe (3). One end of the water suction pipe (105) away from the water pump (104) is fixedly connected with one end of the wrapping sleeve (106), and the water suction pipe (105) communicates with the water cavity. The other end of the wrapping sleeve (106) is fixedly connected with a connecting pipe (111), and the connecting pipe (111) is fixedly connected with the bottom of the water tank (102). The connecting pipe (111) communicates with the water cavity and the water tank (102) at both ends. The water outlet of the water pump (104) is connected with a water return pipe (107), the water return pipe (107) is connected with one end of the heat dissipation coil pipe (113), and the heat dissipation coil pipe (113) is installed in the cooling box (103). One end of the heat dissipation coil pipe (113) away from the water return pipe (107) extends into the water tank (102). The top of the water tank (102) is provided with an upper opening (1022) communicating with the bottom of the cooling box (103). The top of the water tank (102) is fixedly installed with a water inlet (1021). The bottom of the cooling box (103) is fixedly installed with two symmetrical flow guides (114), and a gap aligned with the upper opening (1022) is formed between the two flow guides (114). The distance between the flow guide (114) and the top of the water tank (102) gradually increases away from the gap. ​ ​ The blowing part comprises an air inlet (109), a motor (110), a first rotating shaft (115), a first bevel gear (116), a second bevel gear (117) and a fan blade (119). The water squeezing mechanism (4) comprises a first protective shell (401), a second protective shell (402), a first water pipe (403), a third rotating shaft (404), a fifth bevel gear (405), a cam (406), a push plate (407), a soft bag (408), a first one-way valve (410) and a second one-way valve (411); one side of the cooling box (103) is provided with a groove, the first protective shell (401) is fixedly embedded into the groove, the back surface of the first protective shell (401) is fixedly provided with the second protective shell (402), the third rotating shaft (404) is rotatably arranged in the second protective shell (402), one end of the first rotating shaft (115) extends into the second protective shell (402), and one end of the first rotating shaft (115) and one end of the third rotating shaft (404) are fixedly provided with one fifth bevel gear (405), the two fifth bevel gears (405) are in meshing connection, one end of the third rotating shaft (404) extends into the first protective shell (401), one end of the third rotating shaft (404) in the first protective shell (401) is fixedly provided with the cam (406), one side of the cam (406) is in abutment with the push plate (407), one side of the push plate (407) is provided with the soft bag (408), one side of the soft bag (408) away from the push plate (407) is provided with the first one-way valve (410) and the second one-way valve (411), the first one-way valve (410) is connected with the first water pipe (403), the first water pipe (403) extends into the water tank (102), and the second one-way valve (411) is connected with one end of the water distribution pipe (1131).

2. The apparatus for controlling temperature and pressure of a methanol hydrogen generator according to claim 1, wherein: The gas temperature and pressure in the methanol reforming hydrogen generator (7) are 250-300 DEG C and 0.1-0.5 MPa respectively.

3. The apparatus for controlling temperature and pressure of a methanol reformer as claimed in claim 1, wherein: The air inlet (109) is fixedly communicated to the back side of the cooling box (103), a plurality of mounting racks (118) are fixedly arranged in the air inlet (109), the middle part of each mounting rack (118) is rotatably provided with a fan blade (119), the middle part of the fan blade (119) is fixedly provided with a second bevel gear (117), the second bevel gear (117) is in meshing connection with the first bevel gear (116), the first bevel gear (116) is fixedly sleeved on the first rotating shaft (115), the first rotating shaft (115) is rotatably arranged in the cooling box (103), and the motor (110) is fixedly arranged on the side wall of the air inlet (109), and the output shaft end of the motor (110) is fixedly connected with one end of the first rotating shaft (115).

4. The apparatus for controlling temperature and pressure of a methanol reformer as claimed in claim 3, wherein: The filter screen (112) is fixedly arranged on the side of the air inlet (109) away from the cooling box (103), and the front side of the cooling box (103) is fixedly communicated with the air outlet (108).

5. The apparatus for controlling temperature and pressure of a methanol reformer as claimed in claim 1, wherein: A plurality of reset springs (409) are arranged between the push plate (407) and the heat dissipation coil pipe (113), one end of the reset spring (409) is fixedly connected with the push plate (407), and the other end of the reset spring (409) is fixedly connected with the heat dissipation coil pipe (113).

6. A device for controlling the temperature and pressure of a methanol hydrogen generator as claimed in claim 4, characterized in that: The cleaning mechanism (2) is connected with a transmission part, the transmission part comprises a second rotating shaft (122), a third bevel gear (120) and a fourth bevel gear (121); the bottom end of the second rotating shaft (122) is fixedly connected with the fourth bevel gear (121), the fourth bevel gear (121) is in meshing connection with the third bevel gear (120), and the third bevel gear (120) is fixedly sleeved on the first rotating shaft (115).

7. A device for controlling the temperature and pressure of a methanol hydrogen generator as claimed in claim 6, characterized in that: The cleaning mechanism (2) comprises a cleaning brush (201), a movable strip (202), a connecting rod (203), a protective cover (204), a hinged shaft (205) and a sliding sleeve (206); the protective cover (204) is fixedly installed on the top of the cooling box (103), the top end of the second rotating shaft (122) extends into the protective cover (204), one end of the second rotating shaft (122) in the protective cover (204) is fixedly connected with one end of the connecting rod (203), the other end of the connecting rod (203) is rotatably installed with the hinged shaft (205), the hinged shaft (205) is fixedly connected with the sliding sleeve (206), the sliding sleeve (206) is slidably installed on the movable strip (202), the movable strip (202) is slidably connected with a sliding groove (207) formed on one side of the protective cover (204), and the sliding groove (207) and the movable strip (202) are vertically arranged, the movable strip (202) is fixedly connected with the cleaning brush (201), and the bristles of the cleaning brush (201) are attached to the filter screen (112).

8. The apparatus for controlling temperature and pressure of a methanol reformer of claim 1, wherein: Further comprising a lithium battery assembly (10); the hydrogen internal combustion engine (5) is connected with a generator set (6), and the hydrogen internal combustion engine (5) and the generator set (6) are connected with the lithium battery assembly (10); the methanol reforming hydrogen generator (7) is connected with a hydrogen compressor (8), the hydrogen compressor (8) is connected with a hydrogen cylinder (9), and the hydrogen cylinder (9) is connected with the hydrogen internal combustion engine (5).

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