Solid hydrogen storage alcohol hydrogen gasoline, diesel oil and natural gas multi-fuel internal combustion engine

Abstract

The invention provides a solid hydrogen storage alcohol hydrogen gasoline, diesel oil and natural gas multi-fuel internal combustion engine, and relates to the technical field of internal combustion engine fuels, the solid hydrogen storage alcohol hydrogen gasoline, diesel oil and natural gas multi-fuel internal combustion engine comprises a multi-fuel internal combustion engine body; the gas storage tank is communicated with a gas inlet pipe of the multi-fuel internal combustion engine body, and a flow regulating valve is mounted on the gas inlet pipe; the hydrogen supply assembly and the natural gas supply assembly are respectively connected with the gas storage tank; a methanol reforming furnace jacket is arranged on the periphery of the methanol reforming furnace, and the methanol reforming furnace is connected with a methanol and gasoline and diesel oil supply assembly; a solid hydrogen storage tank jacket is arranged on the periphery of the solid hydrogen storage tank, the solid hydrogen storage tank is connected with a hydrogen injection pipe and a hydrogen discharge pipe, and the hydrogen discharge pipe is communicated with the gas storage tank. According to the invention, the supply of one or more fuels can be flexibly provided for the internal combustion engine, and the conversion rate of the fuels in the conversion process is relatively high.

Description

Technical Field

[0001] The invention relates to the technical field of internal combustion engine fuels, and in particular to a solid hydrogen storage alcohol hydrogen gasoline diesel natural gas multi-fuel internal combustion engine. Background Art

[0002] With the requirements of energy conservation and emission reduction under the concept of environmental protection, the application of green methanol, green hydrogen and methane natural gas as fuel in internal combustion engines has become more and more common.

[0003] However, the fuel of current internal combustion engines is mostly a single fuel system, such as gasoline, diesel, methanol, natural gas, hydrogen, etc., which cannot take into account the use of multiple fuels, and the conversion rate of some fuels during the conversion process is low. Summary of the invention

[0004] The present invention aims to solve the problem that a large part of the current internal combustion engines still use a single fuel and cannot take into account the use of multiple fuels, and the conversion rate of some fuels in the conversion process is low.

[0005] In order to solve the above problems, the present invention provides a solid hydrogen storage alcohol hydrogen gasoline diesel natural gas multi-fuel internal combustion engine, comprising: Multi-fuel internal combustion engine block; An air storage tank is connected to an air intake pipe of the multi-fuel internal combustion engine body, and a flow regulating valve is installed on the air intake pipe; The hydrogen supply assembly and the natural gas supply assembly are respectively connected to the gas storage tank; A methanol reformer, wherein a methanol reformer jacket is disposed on the periphery of the methanol reformer, and the methanol reformer is connected to a methanol and gasoline and diesel supply assembly to supply methanol and / or gasoline and diesel through the methanol and gasoline and diesel supply assembly; A solid-state hydrogen storage tank, wherein the outer periphery of the solid-state hydrogen storage tank is provided with a solid-state hydrogen storage tank jacket, the solid-state hydrogen storage tank is connected with a hydrogen injection pipe and a hydrogen discharge pipe, the hydrogen discharge pipe is arranged to be communicatively connected with the gas storage tank, and the solid-state hydrogen storage tank jacket is respectively communicated with an auxiliary heating component and a cooling component; Among them, the exhaust pipe of the multi-fuel internal combustion engine body is connected with the jacket of the methanol reforming furnace and the jacket of the solid hydrogen storage tank. A mixed gas supply component and a separation reflux component are respectively provided between the methanol reforming furnace and the gas storage tank. The mixed gas supply component is used to transport the combustible mixed gas generated in the methanol reforming furnace to the gas storage tank, and the separation reflux component is used to reflux the methanol and / or gasoline and diesel in the gas storage tank to the methanol reforming furnace.

[0006] Optionally, the methanol reforming furnace includes a furnace body and a methanol reforming furnace porous plate arranged in the furnace body, the methanol reforming furnace jacket is sleeved on the outer wall of the furnace body, and the methanol reforming furnace porous plate is used to hold a catalyst for generating the combustible mixed gas.

[0007] Optionally, the mixed gas supply assembly includes a mixed gas supply pipe body, a mixed gas electric valve installed on the mixed gas supply pipe body and a one-way valve six, the mixed gas electric valve and the one-way valve six are arranged sequentially along the flow direction of the combustible mixed gas, and the one-way valve six is ​​used for the one-way flow of the mixed gas.

[0008] Optionally, the separation reflux assembly includes a reflux pipe body, a gas-liquid separator and a one-way valve. The reflux pipe body is used to connect the gas storage tank and the methanol reformer. The gas-liquid separator and the one-way valve are sequentially installed on the reflux pipe body along the flow direction of methanol and / or gasoline and diesel. The one-way valve is used for the one-way flow of methanol and / or gasoline and diesel.

[0009] Optionally, the exhaust pipe includes exhaust pipe one, exhaust pipe two, and exhaust pipe three, the exhaust pipe one is connected to the multi-fuel internal combustion engine body and the methanol reforming furnace jacket, one end of the exhaust pipe two is connected to the methanol reforming furnace jacket, and the other end is connected to the air inlet of the temperature control fan, the exhaust pipe two is equipped with an exhaust pipe valve, and an exhaust pipe vent valve is also installed on the exhaust pipe two and located between the methanol reforming furnace jacket and the exhaust pipe valve through a branch pipe body one, the exhaust pipe three is used to connect the air outlet of the temperature control fan and the solid hydrogen storage tank jacket, the solid hydrogen storage tank jacket is also connected to one end of the discharge pipe, the other end of the discharge pipe is a free exhaust end, and the pipe body at the other end is equipped with an exhaust pipe valve.

[0010] Optionally, the auxiliary heating component includes a temperature-controlled electric heating element and a temperature gauge, wherein the temperature-controlled electric heating element is used to heat the solid-state hydrogen storage tank, and the temperature gauge is used to measure the temperature of the solid-state hydrogen storage tank.

[0011] Optionally, the cooling assembly includes a cooling box, a pump and a liquid return pipe, the cooling box is provided with coolant, the cooling box and the pump are both installed on a cooling liquid pipe 1, one end of the cooling liquid pipe 1 is connected to the jacket of the solid hydrogen storage tank, and the other end is connected to the liquid inlet of the temperature control fan, the liquid outlet of the temperature control fan is connected to the jacket of the solid hydrogen storage tank through a cooling liquid pipe 2, a box valve 2 and a box valve 1 are respectively installed at both ends of the cooling box and located on the cooling liquid pipe 1, one end of the liquid return pipe is connected to the jacket of the solid hydrogen storage tank, and the other end is connected to the tube body of the cooling liquid pipe 1 located between the box valve 2 and the cooling box.

[0012] Optionally, the connection positions of the liquid return pipe and the coolant pipe 1 with the jacket of the solid hydrogen storage tank are respectively located on both sides of the jacket of the solid hydrogen storage tank.

[0013] Optionally, the hydrogen exhaust pipe includes a hydrogen connecting pipe, which is used to connect the solid-state hydrogen storage tank and the gas storage tank. Along the direction of hydrogen flow, a hydrogen electric valve, a hydrogen automatic pressure sensing pump and a one-way valve five are respectively installed on the hydrogen connecting pipe, and the one-way valve five is used for the one-way flow of hydrogen.

[0014] Optionally, a temperature-controlled automatic exhaust valve is installed on the exhaust pipe three through the branch pipe body two.

[0015] The beneficial effects of the present invention are as follows: the exhaust pipe is connected to the jacket of the solid-state hydrogen storage tank, and the waste heat of the exhaust gas in the exhaust pipe of the multi-fuel internal combustion engine body is used to heat the solid-state hydrogen storage tank, saving energy, and the solid-state hydrogen storage tank can be auxiliary heated by an auxiliary heating component so that the solid-state hydrogen storage tank can stably release hydrogen; when the solid-state hydrogen storage tank needs to be filled with hydrogen through the hydrogen injection pipe, the cooling component is connected to the jacket of the solid-state hydrogen storage tank to cool the solid-state hydrogen storage tank, so that the solid-state hydrogen storage tank can be stably filled with hydrogen, thereby achieving the purpose of stably storing and releasing hydrogen in the solid-state hydrogen storage tank, and the hydrogen from the hydrogen release reaction can enter the gas storage tank; the exhaust pipe is connected to the jacket of the methanol reforming furnace, and the waste heat of the exhaust gas in the exhaust pipe of the multi-fuel internal combustion engine body is used to heat the methanol reforming furnace to produce a combustible mixed gas, and the combustible mixed gas can also be supplied to the gas storage tank, and at the same time, the separation reflux component between the methanol reforming furnace and the gas storage tank is used. In the application scenario where methanol and / or gasoline and diesel are used as fuel, the methanol and / or gasoline and diesel that are not completely converted are recycled back to the methanol reformer, which can not only improve the overall conversion amount and conversion rate of methanol and / or gasoline and diesel, but also increase the content of the combustible mixed gas. In addition, in conjunction with the hydrogen supply component and the natural gas supply component provided on the gas storage tank, hydrogen and (methane) natural gas can also be supplied separately. Therefore, the internal combustion engine can be filled with one or more of hydrogen, natural gas, methanol and gasoline and diesel according to actual needs in different application scenarios, avoiding the limitation of a single fuel, so that the multi-fuel internal combustion engine body can be configured to flexibly supply fuel. Moreover, since a parallel solution of direct hydrogen supply and solid-state hydrogen storage and release is provided, the solid-state hydrogen storage technology reduces the high-pressure danger and increases the hydrogen storage capacity compared to the prior art of hydrogen storage and transportation using high-pressure hydrogen cylinders, which can promote the promotion and use of green hydrogen. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural schematic diagram of a solid hydrogen storage alcohol hydrogen gasoline diesel natural gas multi-fuel internal combustion engine in an embodiment of the present invention is shown.

[0017] Description of reference numerals: 1. Multi-fuel internal combustion engine body; 2. Exhaust pipe 1; 3. One-way valve 1; 4. Gas-liquid separator; 5. Reflux pipe body; 6. Methanol reforming furnace jacket; 7. Methanol reforming furnace porous plate; 8. Methanol reforming furnace; 9. Methanol and gasoline and diesel connecting pipe; 10. One-way valve 2; 11. Methanol and gasoline and diesel automatic pressure sensing pump; 12. Fuel tank electric valve; 13. Methanol and gasoline and diesel tanks; 14. Coolant pipe 1; 15. Pump; 16. Box valve 1; 17. Cooling box; 18. Box valve 2; 19. Temperature control electric heating; 20. Return pipe; 21. Solid hydrogen storage tank; 22. Exhaust pipe valve; 23. Solid hydrogen storage tank jacket; 24. Thermometer; 25. Safety pressure relief valve; 26. Pressure gauge; 27. Hydrogen connecting pipe; 28. Hydrogen cylinder; 29. ​​Hydrogen cylinder Gas injection port; 30. Natural gas injection port; 31. Natural gas bottle; 32. Natural gas connecting pipe; 33. Hydrogen electric valve; 34. Natural gas electric valve; 35. Hydrogen automatic pressure sensing pump; 36. Natural gas automatic pressure sensing pump; 37. One-way valve three; 38. One-way valve four; 39. Hydrogen connecting pipe; 40. Hydrogen electric valve; 41. Hydrogen automatic pressure sensing pump; 42. One-way valve five; 43. Mixed gas electric valve; 44. One-way valve six; 45. Gas storage tank; 46. Inlet pipe; 47. Flow regulating valve; 48. Exhaust pipe two; 49. Exhaust pipe vent valve; 50. Exhaust pipe valve; 51. Temperature-controlled fan; 52. Exhaust pipe three; 53. Temperature-controlled automatic exhaust valve; 54. Coolant pipe two; 55. Hydrogen injection port; 56. Exhaust pipe. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0019] In the description of this specification, the description with reference to the terms "embodiment", "one embodiment" and "one implementation" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or implementation are included in at least one embodiment or implementation of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or implementation. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or implementations in a suitable manner.

[0020] Reference Figure 1 As shown, the embodiment of the present invention proposes a solid hydrogen storage alcohol hydrogen gasoline diesel natural gas multi-fuel internal combustion engine, comprising: Multi-fuel internal combustion engine body 1; The air storage tank 45 is communicated with an air intake pipe 46 of the multi-fuel internal combustion engine body 1 , and a flow regulating valve 47 is installed on the air intake pipe 46 .

[0021] The air tank 45 serves as a multi-fuel storage and supply device, receives fuel from all fuel sources, and supplies fuel to the multi-fuel internal combustion engine body 1 through the intake pipe 46. The flow regulating valve 47 is used to adjust the amount of fuel supply.

[0022] The hydrogen supply assembly and the natural gas supply assembly are both connected to the gas storage tank 45 respectively.

[0023] The hydrogen supply assembly and the natural gas supply assembly can independently supply natural gas and hydrogen to the gas storage tank 45 , respectively.

[0024] A methanol reforming furnace 8, wherein a methanol reforming furnace jacket 6 is disposed on the periphery of the methanol reforming furnace 8, and the methanol reforming furnace 8 is supplied with methanol and / or gasoline and diesel through a methanol and gasoline and diesel supply assembly.

[0025] A solid-state hydrogen storage tank 21, wherein a solid-state hydrogen storage tank jacket 23 is disposed on the periphery of the solid-state hydrogen storage tank 21, wherein the solid-state hydrogen storage tank 21 is connected with a hydrogen injection pipe and a hydrogen discharge pipe, wherein the hydrogen discharge pipe is communicatively arranged with the gas storage tank 45, and wherein the solid-state hydrogen storage tank jacket 23 is respectively communicated with an auxiliary heating component and a cooling component.

[0026] A hydrogen storage alloy is arranged in the solid hydrogen storage tank 21. The hydrogen storage alloy and hydrogen can react under different temperature and pressure conditions to achieve heating to release hydrogen and cooling to store hydrogen.

[0027] Among them, the exhaust pipe of the multi-fuel internal combustion engine body 1 is connected to the methanol reforming furnace jacket 6 and the solid hydrogen storage tank jacket 23, and a mixed gas supply component and a separation reflux component are provided between the methanol reforming furnace 8 and the gas storage tank 45. The mixed gas supply component is used to transport the combustible mixed gas generated in the methanol reforming furnace 8 to the gas storage tank 45, and the separation reflux component is used to reflux the methanol and / or gasoline and diesel in the gas storage tank 45 to the methanol reforming furnace 8.

[0028] Specifically, the solid-state hydrogen storage tank 21 can be used as a source of hydrogen in addition to the hydrogen supply component. It can achieve heating and hydrogen release (hydrogen evolution) after the high-temperature exhaust gas in the exhaust pipe of the multi-fuel internal combustion engine body 1 enters the solid-state hydrogen storage tank jacket 23, wherein the auxiliary heating component can assist in heating when the heat of the exhaust gas is insufficient, and under the action of the cooling component, hydrogen is injected into the solid-state hydrogen storage tank 21 through the hydrogen injection pipe to achieve cooling and hydrogenation (hydrogen storage). The stored hydrogen is released after subsequent heating and injected into the gas storage tank 45 through the hydrogen discharge pipe. The hydrogen discharge pipe and the gas storage tank 45 can be connected, that is, the hydrogen discharge pipe can be connected to the gas storage tank 45 only when heating and hydrogen release is required to avoid fuel backflow.

[0029] With the help of the mixed gas supply assembly and the separation reflux assembly between the methanol reformer 8 and the gas storage tank 45, since the methanol reformer jacket 6 is arranged on the periphery of the methanol reformer 8, the methanol reformer 8 supplies methanol and gasoline and diesel through the methanol and gasoline and diesel supply assembly, and the exhaust pipe of the multi-fuel internal combustion engine body 1 is used to allow the high-temperature exhaust gas to enter the methanol reformer jacket 6. The methanol reformer 8 is equivalent to a reactor, and a combustible mixed gas is generated under heating conditions. After the combustible mixed gas is generated, it flows into the gas storage tank 45. Since this reaction is incomplete, methanol and / or gasoline and diesel are mixed in the combustible mixed gas, and methanol and / or gasoline and diesel are in liquid state. Therefore, the methanol and / or gasoline and diesel in the combustible mixed gas flowing into the gas storage tank 45 can be separated from the combustible mixed gas by the action of the separation reflux assembly, and refluxed into the methanol reformer 8, and the conversion reaction is carried out again to promote the conversion of methanol and / or gasoline and diesel.

[0030] It should be noted that the combustible mixed gas includes one or more of hydrogen, carbon monoxide, methanol gas, gasoline and diesel gas, and alkane and alkene produced by catalytic cracking of gasoline and diesel.

[0031] In this embodiment, the exhaust pipe is connected to the solid hydrogen storage tank jacket 23, and the waste heat of the exhaust gas in the exhaust pipe of the multi-fuel internal combustion engine body 1 is used to heat the solid hydrogen storage tank 21, saving energy, and the solid hydrogen storage tank 21 can be auxiliary heated by an auxiliary heating component so that the solid hydrogen storage tank 21 can stably release hydrogen; when the solid hydrogen storage tank 21 needs to be filled with hydrogen through the hydrogen injection pipe, the cooling component is connected to the solid hydrogen storage tank jacket 23 to cool the solid hydrogen storage tank 21, so that the solid hydrogen storage tank 21 can be stably filled with hydrogen, thereby achieving the purpose of stably storing and releasing hydrogen in the solid hydrogen storage tank 21, and the hydrogen from the hydrogen release reaction can enter the gas storage tank 45; the exhaust pipe is connected to the methanol reforming furnace jacket 6, and the waste heat of the exhaust gas in the exhaust pipe of the multi-fuel internal combustion engine body 1 is used to heat the methanol reforming furnace 8 to produce a combustible mixed gas, and the combustible mixed gas can also be supplied to the gas storage tank 45, and the space between the methanol reforming furnace 8 and the gas storage tank 45 is used. The separation reflux component circulates the incompletely converted methanol and / or gasoline and diesel back to the methanol reformer 8 in the application scenario of using methanol and / or gasoline and diesel as fuel, which can not only improve the overall conversion amount and conversion rate of methanol and / or gasoline and diesel, but also increase the content of the combustible mixed gas. In addition, in conjunction with the hydrogen supply component and the natural gas supply component provided on the gas storage tank 45, hydrogen and (methane) natural gas can also be supplied respectively. Therefore, the internal combustion engine can be filled with one or more of hydrogen, natural gas, methanol and gasoline and diesel according to actual needs in different application scenarios, avoiding the limitation of a single fuel, so that the multi-fuel internal combustion engine body 1 can be configured to flexibly supply fuel. Moreover, since a parallel solution of directly supplying hydrogen and solid-state hydrogen storage and dehydrogenation is provided, the solid-state hydrogen storage technology reduces the high-pressure danger and increases the hydrogen storage capacity compared to the prior art of hydrogen storage and transportation using high-pressure hydrogen cylinders, which can promote the promotion and use of green hydrogen.

[0032] The present invention enables methanol, gasoline, diesel, hydrogen, natural gas and other fuels to be used in the same internal combustion engine, solving the difficult problem of balancing operational economy and refueling convenience. Moreover, methane natural gas can also be derived from biogas purification, which is also a green fuel. Therefore, methanol, hydrogen and natural gas can all be green fuels, which meet the national and world requirements for energy conservation and emission reduction. In addition, compared with the prior art of hydrogen storage and transportation using high-pressure hydrogen cylinders, solid-state hydrogen storage technology reduces the high-pressure danger and increases the hydrogen storage capacity, which can promote the promotion and use of green hydrogen, especially in the promotion and application of green carbon emission reduction on ships, trains, heavy trucks and passenger cars, and will play a huge role.

[0033] In the present invention, the combustible mixed gas fuel 1 mode of methanol and / or gasoline and diesel reforming, the natural gas single fuel 2 mode of the natural gas supply assembly, the hydrogen single fuel 3 mode supplied by the hydrogen bottle supply assembly, the hydrogen single fuel 4 mode supplied by the solid hydrogen storage tank supply assembly, the hydrogen fuel supplied by the solid hydrogen storage tank supply assembly + the hydrogen single fuel 5 mode supplied by the hydrogen bottle supply assembly, the combustible mixed gas fuel of methanol and / or gasoline and diesel reforming + the natural gas supply assembly The natural gas dual fuel combination mode 6, the hydrogen supplied by the hydrogen bottle supply assembly + the natural gas supply assembly The natural gas dual fuel combination mode 7, The dual-fuel combination 8 of hydrogen fuel supplied by the solid hydrogen storage tank supply assembly + natural gas supplied by the natural gas supply assembly, the dual-fuel combination 9 of hydrogen fuel supplied by the solid hydrogen storage tank supply assembly + hydrogen supplied by the hydrogen bottle supply assembly + natural gas supplied by the natural gas supply assembly, the dual-fuel combination 10 of a combustible mixture of methanol and / or gasoline and diesel reformed + hydrogen supplied by the hydrogen bottle supply assembly, the dual-fuel combination 11 of a combustible mixture of methanol and / or gasoline and diesel reformed + hydrogen fuel supplied by the solid hydrogen storage tank supply assembly + hydrogen supplied by the hydrogen bottle supply assembly, etc., can all be used as fuels.

[0034] It should be noted that if the fuels in the above corresponding methods involve two or more types, they can be combined in a preset ratio when used.

[0035] like Figure 1 As shown, the hydrogen supply assembly includes a hydrogen bottle 28, a hydrogen connecting pipe 39, a hydrogen electric valve 33, a hydrogen automatic pressure sensing pump 35 and a one-way valve three 37. The hydrogen bottle 28 is connected to the gas storage tank 45 through the hydrogen connecting pipe 39. Along the direction of hydrogen flow, the hydrogen electric valve 33, the hydrogen automatic pressure sensing pump 35 and the one-way valve three 37 are sequentially installed on the hydrogen connecting pipe 39, and the hydrogen bottle 28 is also equipped with a hydrogen bottle gas injection port 29, and a closed valve one is installed on the hydrogen bottle gas injection port 29.

[0036] When hydrogen is supplied through the hydrogen supply assembly, the hydrogen electric valve 33 is opened, and hydrogen enters the gas storage tank 45 through the hydrogen electric valve 33 on the hydrogen connecting pipe 39, the hydrogen automatic pressure sensing pump 35, and the one-way valve 37.

[0037] Similar to the hydrogen supply assembly, the natural gas supply assembly includes a natural gas bottle 31, a natural gas electric valve 34, a natural gas automatic pressure sensing pump 36, a one-way valve four 38 and a natural gas connecting pipe 32. The natural gas bottle 31 is connected to the gas storage tank 45 through the natural gas connecting pipe 32. Along the direction of natural gas flow, the natural gas electric valve 34, the natural gas automatic pressure sensing pump 36 and the one-way valve four 38 are sequentially installed on the natural gas connecting pipe 32, and the natural gas bottle 31 is also equipped with a natural gas injection port 30, and the natural gas injection port 30 is equipped with a closed valve two. Similarly, the process of supplying natural gas is similar to the process of supplying hydrogen, which will not be described here.

[0038] like Figure 1 As shown, as an optional embodiment of the present invention, the methanol reformer 8 includes a furnace body and a methanol reformer furnace porous plate 7 arranged in the furnace body, the methanol reformer furnace jacket 6 is sleeved on the outer wall of the furnace body, and the methanol reformer furnace porous plate 7 is used to hold the catalyst for generating the combustible mixed gas.

[0039] The methanol and gasoline and diesel supply components include a methanol and gasoline and diesel tank 13, an electric tank valve 12, a methanol and gasoline and diesel automatic pressure sensing pump 11, a one-way valve 10 and a methanol and gasoline and diesel connecting pipe 9. The methanol and gasoline and diesel connecting pipe 9 is used to connect the interior of the methanol and gasoline and diesel tank 13 and the inner bottom of the methanol reforming furnace 8. Along the flow direction of methanol and / or gasoline and diesel from the methanol and gasoline and diesel tank 13 to the methanol reforming furnace 8, the methanol and gasoline and diesel connecting pipe 9 is sequentially installed with the electric tank valve 12, the methanol and gasoline and diesel automatic pressure sensing pump 11, and a one-way valve 10. The one-way valve 10 is used to prevent the reverse flow of methanol and / or gasoline and diesel.

[0040] Specifically, the methanol reformer 8 includes a furnace body, and a methanol reformer porous plate 7 is provided at the inner bottom of the furnace body. A catalyst is provided on the methanol reformer porous plate 7. Under the conditions of the catalyst and heating, methanol and gasoline and diesel react to generate a combustible mixed gas mixed with a portion of liquid methanol and / or gasoline and diesel.

[0041] like Figure 1 As shown, as an optional embodiment of the present invention, the mixed gas supply assembly includes a mixed gas supply pipe body, a mixed gas electric valve 43 and a one-way valve 6 44 installed on the mixed gas supply pipe body, the mixed gas electric valve 43 and the one-way valve 6 44 are arranged sequentially along the flow direction of the combustible mixed gas, and the one-way valve 6 44 is used for the one-way flow of the combustible mixed gas.

[0042] The separation reflux assembly includes a reflux pipe body 5, a gas-liquid separator 4 and a one-way valve 3. The reflux pipe body 5 is used to connect the gas storage tank 45 and the methanol reforming furnace 8 (bottom). The gas-liquid separator 4 and the one-way valve 3 are sequentially installed on the reflux pipe body 5 along the flow direction of methanol and / or gasoline and diesel. The one-way valve 3 is used for the one-way flow of methanol and / or gasoline and diesel.

[0043] Specifically, the mixed gas supply component and the separation reflux component are used in conjunction with each other. When using methanol and / or gasoline and diesel fuel, the methanol in the methanol and gasoline and diesel tank 13 passes through the tank electric valve 12 on the methanol and gasoline and diesel connecting pipe 9, the methanol and gasoline and diesel automatic pressure sensing pump 11, and the one-way valve 10 to enter the lower part of the methanol reforming furnace 8, and contacts with the catalyst on the upper part of the methanol reforming furnace porous plate 7 through the methanol reforming furnace porous plate 7, and is heated by the waste heat of the flue gas in the exhaust pipe 2 to react and generate a combustible mixed gas, which is then discharged through the methanol reforming furnace porous plate 7. The mixed gas electric valve 43 and the one-way valve six 44 enter the gas storage tank 45, and then pass through the flow regulating valve 47 on the intake pipe 46 to enter the multi-fuel internal combustion engine body 1 for combustion. The methanol and / or gasoline and diesel that are not completely converted are also mixed in the combustible mixed gas and enter the gas storage tank 45, and then through the gas-liquid separator 4 and the one-way valve one 3 below the bottom of the gas storage tank 45, the methanol and / or gasoline and diesel are circulated back to the bottom of the methanol reforming furnace 8, thereby realizing the reflux of unreacted methanol and / or gasoline and diesel, and improving the conversion rate of methanol and / or gasoline and diesel.

[0044] The catalyst in the methanol reforming furnace 8 includes a methanol reforming catalyst and a gasoline and diesel cracking catalyst.

[0045] like Figure 1 As shown, as an optional embodiment of the present invention, the exhaust pipe includes an exhaust pipe 1 2, an exhaust pipe 2 48, and an exhaust pipe 3 52, the exhaust pipe 1 2 connects the multi-fuel internal combustion engine body 1 and the methanol reforming furnace jacket 6, one end of the exhaust pipe 2 48 is connected to the methanol reforming furnace jacket 6, and the other end is connected to the air inlet of the temperature control fan 51, the exhaust pipe 2 48 is installed with an exhaust pipe valve 50, and an exhaust pipe vent valve 49 is also installed on the exhaust pipe 2 48 and located between the methanol reforming furnace jacket 6 and the exhaust pipe valve 50 through a branch pipe body 1, the exhaust pipe 3 52 is used to connect the air outlet of the temperature control fan 51 and the solid hydrogen storage tank jacket 23, the solid hydrogen storage tank jacket 23 is also connected to one end of the discharge pipe 56, the other end of the discharge pipe 56 is a free exhaust end, and the other end of the pipe body is installed with an exhaust pipe valve 22.

[0046] Specifically, the branch pipe body 1 is arranged between the exhaust pipe 2 48 and the exhaust pipe valve 50, one end of the branch pipe body 1 is connected to the exhaust pipe 2 48, and the other end is the exhaust gas outlet. The exhaust pipe vent valve 49 is installed on the branch pipe body 1.

[0047] In this optional embodiment, if only the heat of the exhaust gas is needed in the methanol reforming furnace jacket 6, the exhaust pipe valve 50 is closed and the exhaust pipe vent valve 49 is opened. At this time, hydrogen evolution reaction generally does not occur in the solid hydrogen storage tank 21. If hydrogen evolution reaction is needed in the solid hydrogen storage tank 21, the exhaust pipe vent valve 49 is closed and the exhaust pipe valve 50 is opened to allow the exhaust gas to pass through the exhaust pipe 1 2, the methanol reforming furnace jacket 6, the exhaust pipe 2 48, the temperature-controlled fan 51, and the exhaust pipe 3 52 in sequence into the solid hydrogen storage tank jacket 23. The temperature-controlled fan 51 is temperature-controlled and can preheat the exhaust gas. It should be noted that a flue gas heating pipeline and a liquid cooling pipeline are provided in the temperature-controlled fan 51, and the two pipelines are independent.

[0048] Since the exhaust gas discharged from the multi-fuel internal combustion engine body 1 can be utilized to different degrees, the rational utilization of the exhaust gas is improved, the efficiency of waste heat utilization is improved, and the various components can be effectively coordinated, and the cooling reaction (hydrogenation) and the heating (hydrogen evolution) reaction can share some pipelines.

[0049] like Figure 1 As shown, as an optional embodiment of the present invention, the auxiliary heating component includes a temperature-controlled electric heating element 19 and a temperature gauge 24, wherein the temperature-controlled electric heating element 19 is used to heat the solid-state hydrogen storage tank 21, and the temperature gauge 24 is used to measure the temperature of the solid-state hydrogen storage tank 21.

[0050] Specifically, when the hydrogen evolution reaction is required, the temperature-controlled electric heating element 19 is controlled to heat the solid hydrogen storage tank 21 according to the temperature required for the reaction of hydrogen evolution in the solid hydrogen storage tank 21. This heating is generally auxiliary heating, so the heat required for hydrogen evolution generally comes mainly from the heat contained in the exhaust gas in the exhaust pipe, and the temperature of the reaction in the solid hydrogen storage tank 21 is measured by the thermometer 24 to control the reaction. The process of realizing hydrogen evolution by the cooling component will be explained in detail below.

[0051] like Figure 1 As shown, as an optional embodiment of the present invention, the cooling assembly includes a cooling box 17, a pump 15 and a liquid return pipe 20, the cooling box 17 is provided with coolant, the cooling box 17 and the pump 15 are both installed on a coolant pipe 14, one end of the coolant pipe 14 is connected to the solid hydrogen storage tank jacket 23, and the other end is connected to the liquid inlet of the temperature control fan 51, the liquid outlet of the temperature control fan 51 is connected to the solid hydrogen storage tank jacket 23 through a coolant pipe 2 54, and a box valve 2 18 and a box valve 16 are respectively installed at both ends of the cooling box 17 and located on the coolant pipe 14, one end of the liquid return pipe 20 is connected to the solid hydrogen storage tank jacket 23, and the other end is connected to the tube body of the coolant pipe 14 located between the box valve 2 18 and the cooling box 17.

[0052] The solid hydrogen storage tank 21 is also provided with a hydrogen injection port 55 , on which an opening and closing valve is provided. The hydrogen injection port 55 is used for injecting hydrogen.

[0053] When using the hydrogen fuel stored in the solid hydrogen storage tank 21, first close the pump 15 and the box valve 1 16, open the box valve 2 18 to discharge all the coolant in the solid hydrogen storage tank jacket 23 into the cooling box 17, then close the box valve 2 18, open the exhaust pipe valve 22, close the exhaust pipe vent valve 49 (and open the exhaust pipe valve 50), and the exhaust gas of the internal combustion engine enters the solid hydrogen storage tank jacket 23 through the exhaust pipe 1 2, the methanol reforming furnace jacket 6, the exhaust pipe 2 48, the exhaust pipe valve 50, the temperature-controlled fan 51, and the exhaust pipe 3 52 to heat the exhaust gas of the solid hydrogen storage tank 21, and at the same time, auxiliary heating is performed by the temperature-controlled electric heating 19 (when the heat provided by the exhaust gas for the hydrogen evolution reaction is insufficient), wherein the temperature-controlled automatic exhaust valve 53 installed on the branch body 2 is used to ensure that the solid hydrogen storage tank 21 will not be overheated or unsafe due to the heating of the exhaust gas.

[0054] The hydrogen released from the solid hydrogen storage tank 21 enters the gas storage tank 45 through the hydrogen electric valve 40, the hydrogen automatic pressure sensing pump 41 and the one-way valve 42 on the hydrogen connecting pipe 27, and then enters the multi-fuel internal combustion engine body 1 for combustion through the flow regulating valve 47.

[0055] Specifically, the coolant can be water. When the solid hydrogen storage tank 21 is used for gas storage, the exhaust pipe vent valve 49 installed on the exhaust pipe 2 48 is first opened and the exhaust pipe valve 50 is closed. At the same time, the exhaust pipe valve 22 is closed, the box valve 16 and the pump 15 are opened, and the box valve 2 18 is closed. Hydrogen enters the solid hydrogen storage tank 21 through the hydrogen gas injection port 55 on the solid hydrogen storage tank 21. The coolant in the coolant pipe 1 14 passes through the cooling box 17, the box valve 1 16, the pump 15, the temperature control fan 51 (liquid cooling pipe inside), and the coolant pipe 2 54 in sequence. Enter the jacket 23 of the solid hydrogen storage tank, and then enter the cooling box 17 through the return pipe 20 to achieve circulating cooling of the coolant. Generally, the return pipe 20 is used as the discharge pipe of the coolant, and the discharged coolant enters the cooling box 17. The temperature control fan 51 can be used according to the actual cooling demand to air-cool the coolant in the coolant pipe 14 leading to the coolant pipe 2 54, thereby improving the cooling effect and promoting the completion of hydrogenation.

[0056] In this optional embodiment, through the cooperation of various components in the cooling assembly, hydrogen storage in the solid hydrogen storage tank 21 can be achieved under the circulation of coolant without affecting the discharge of smoke.

[0057] like Figure 1As shown, as an optional embodiment of the present invention, the connection positions of the return liquid pipe 20 and the coolant pipe 14 with the solid hydrogen storage tank jacket 23 are respectively located on both sides of the solid hydrogen storage tank jacket 23.

[0058] Specifically, the return pipe 20 and the coolant pipe 14 are used as the liquid outlet and liquid inlet of the solid hydrogen storage tank jacket 23, respectively. In order to maximally circulate the coolant of the solid hydrogen storage tank 21, the distance between the return pipe 20 and the coolant pipe 14 should be as far as possible. Preferably, the two are arranged on both sides of the solid hydrogen storage tank jacket 23, for example, at Figure 1 The left and right sides of the solid hydrogen storage tank are provided to ensure that the coolant can cool every position in the jacket 23 of the solid hydrogen storage tank as much as possible, thereby improving the efficiency of hydrogen storage (charging).

[0059] like Figure 1 As shown, as an optional embodiment of the present invention, the hydrogen exhaust pipe includes a hydrogen connecting pipe 27, and the hydrogen connecting pipe 27 is used to connect the solid hydrogen storage tank 21 and the gas storage tank 45. Along the direction of hydrogen flow, a hydrogen electric valve 40, a hydrogen automatic pressure sensing pump 41 and a one-way valve 42 are respectively installed on the hydrogen connecting pipe 27, and the one-way valve 42 is used for the one-way flow of hydrogen.

[0060] Specifically, the setting of the hydrogen connecting pipe 27 is that when hydrogen fuel is needed, the solid hydrogen storage tank 21 is heated by the auxiliary heating component, and the precipitated hydrogen passes through the hydrogen connecting pipe 27. After the hydrogen electric valve 40 is opened, the hydrogen flows along the hydrogen connecting pipe 27, passes through the hydrogen electric valve 40, the hydrogen automatic pressure sensing pump 41 and the one-way valve 5 42 in sequence, and the one-way valve 5 42 is used for the one-way flow of hydrogen, and then enters the gas storage tank 45 to obtain the hydrogen required for the operation of the gas storage tank 45. The hydrogen automatic pressure sensing pump 41 can sense the pressure of the hydrogen, and then conveniently control the opening size of the hydrogen electric valve 40. The one-way valve 5 42 ensures the one-way flow of hydrogen from the solid hydrogen storage tank 21 to the gas storage tank 45. It should be noted that a pressure gauge 26 is also provided on the hydrogen connecting pipe 27, and a safety pressure relief valve 25 is also installed on the hydrogen connecting pipe 27 through the branch pipe body 3, which plays the role of monitoring the pressure of the hydrogen in the hydrogen connecting pipe 27 and venting and relieving the pressure, so as to improve the safety of hydrogen use.

[0061] like Figure 1 As shown, as an optional embodiment of the present invention, in order to improve the safety of the exhaust pipe, a temperature-controlled automatic exhaust valve 53 is installed on the exhaust pipe 3 52 through the branch pipe body 2.

[0062] Specifically, one end of the second branch pipe body is connected to the exhaust pipe 3 52, and the other end is an exhaust port.

[0063] In this optional embodiment, the exhaust pipe three 52 is a part of the exhaust pipe, and the temperature-controlled automatic exhaust valve 53 can be opened when exhaust or pressure relief is required, thereby improving the safety of the exhaust gas in the exhaust pipe.

[0064] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features invented herein.

[0065] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A solid hydrogen storage alcohol hydrogen gasoline diesel natural gas multi-fuel internal combustion engine, characterized in that: include: Multi-fuel internal combustion engine body (1); An air storage tank (45) is connected to an air intake pipe (46) of the multi-fuel internal combustion engine body (1), and a flow regulating valve (47) is installed on the air intake pipe (46); The hydrogen supply assembly and the natural gas supply assembly are respectively connected to the gas storage tank (45); A methanol reforming furnace (8), wherein a methanol reforming furnace jacket (6) is provided on the periphery of the methanol reforming furnace (8), and the methanol reforming furnace (8) is connected to a methanol and gasoline and diesel supply assembly; A solid-state hydrogen storage tank (21), wherein a solid-state hydrogen storage tank jacket (23) is provided on the periphery of the solid-state hydrogen storage tank (21), the solid-state hydrogen storage tank (21) is connected to a hydrogen injection pipe and a hydrogen discharge pipe, the hydrogen discharge pipe is arranged to be communicatively connected to the gas storage tank (45), and the solid-state hydrogen storage tank jacket (23) is respectively connected to an auxiliary heating component and a cooling component; The exhaust pipe of the multi-fuel internal combustion engine body (1) is in communication with the methanol reforming furnace jacket (6) and the solid hydrogen storage tank jacket (23); a mixed gas supply component and a separation reflux component are respectively provided between the methanol reforming furnace (8) and the gas storage tank (45); the mixed gas supply component is used to transport the combustible mixed gas generated in the methanol reforming furnace (8) to the gas storage tank (45); and the separation reflux component is used to reflux the methanol and / or gasoline and diesel in the gas storage tank (45) to the methanol reforming furnace (8).

2. The solid hydrogen storage alcohol hydrogen gasoline diesel natural gas multi-fuel internal combustion engine according to claim 1, characterized in that: The methanol reforming furnace (8) comprises a furnace body and a methanol reforming furnace porous plate (7) arranged in the furnace body, the methanol reforming furnace jacket (6) is sleeved on the outer wall of the furnace body, and the methanol reforming furnace porous plate (7) is used to contain a catalyst for generating the combustible mixed gas.

3. The solid hydrogen storage alcohol hydrogen gasoline diesel natural gas multi-fuel internal combustion engine according to claim 1, characterized in that: The mixed gas supply assembly comprises a mixed gas supply pipe body, a mixed gas electric valve (43) and a one-way valve six (44) installed on the mixed gas supply pipe body, wherein the mixed gas electric valve (43) and the one-way valve six (44) are arranged in sequence along the flow direction of the combustible mixed gas, and the one-way valve six (44) is used for the one-way flow of the combustible mixed gas.

4. The solid hydrogen storage alcohol hydrogen gasoline diesel natural gas multi-fuel internal combustion engine according to claim 1, characterized in that: The separation reflux assembly comprises a reflux pipe body (5), a gas-liquid separator (4) and a one-way valve (3); the reflux pipe body (5) is used to connect the gas storage tank (45) and the methanol reforming furnace (8); the gas-liquid separator (4) and the one-way valve (3) are sequentially installed on the reflux pipe body (5) along the flow direction of methanol and / or gasoline and diesel; the one-way valve (3) is used for the one-way flow of methanol and / or gasoline and diesel.

5. The solid hydrogen storage alcohol hydrogen gasoline diesel natural gas multi-fuel internal combustion engine according to claim 1, characterized in that: The exhaust pipe comprises an exhaust pipe 1 (2), an exhaust pipe 2 (48), and an exhaust pipe 3 (52). The exhaust pipe 1 (2) is used to connect the multi-fuel internal combustion engine body (1) and the methanol reforming furnace jacket (6). One end of the exhaust pipe 2 (48) is connected to the methanol reforming furnace jacket (6), and the other end is connected to the air inlet of the temperature control fan (51). An exhaust pipe valve (50) is installed on the exhaust pipe 2 (48). An exhaust pipe vent valve (49) is installed on the exhaust pipe 2 (48) and between the methanol reforming furnace jacket (6) and the exhaust pipe valve (50) through a branch pipe body 1. The exhaust pipe 3 (52) is used to connect the air outlet of the temperature control fan (51) and the solid hydrogen storage tank jacket (23). The solid hydrogen storage tank jacket (23) is also connected to one end of a discharge pipe (56). The other end of the discharge pipe (56) is a free exhaust end, and an exhaust pipe valve (22) is installed on the pipe body at the other end.

6. The solid hydrogen storage alcohol hydrogen gasoline diesel natural gas multi-fuel internal combustion engine according to claim 5, characterized in that: The cooling assembly comprises a cooling box (17), a pump (15) and a liquid return pipe (20). The cooling box (17) is provided with a coolant. The cooling box (17) and the pump (15) are both installed on a coolant pipe 1 (14). One end of the coolant pipe 1 (14) is in communication with the jacket (23) of the solid hydrogen storage tank, and the other end is in communication with the liquid inlet of the temperature control fan (51). The liquid outlet of the temperature control fan (51) is in communication with the jacket (23) of the solid hydrogen storage tank via a coolant pipe 2 (54). A box valve 2 (18) and a box valve 1 (16) are respectively installed at both ends of the cooling box (17) and located on the coolant pipe 1 (14). One end of the liquid return pipe (20) is in communication with the jacket (23) of the solid hydrogen storage tank, and the other end is in communication with a pipe body of the coolant pipe 1 (14) located between the box valve 2 (18) and the cooling box (17).

7. The solid hydrogen storage alcohol hydrogen gasoline diesel natural gas multi-fuel internal combustion engine according to claim 6, characterized in that: The connection positions of the liquid return pipe (20) and the cooling liquid pipe 1 (14) with the solid hydrogen storage tank jacket (23) are respectively located on both sides of the solid hydrogen storage tank jacket (23).

8. The solid hydrogen storage alcohol hydrogen gasoline diesel natural gas multi-fuel internal combustion engine according to claim 1, characterized in that: The hydrogen discharge pipe comprises a hydrogen connecting pipe (27), the hydrogen connecting pipe (27) being used to connect the solid hydrogen storage tank (21) and the gas storage tank (45), and along the flow direction of the hydrogen, a hydrogen electric valve (40), a hydrogen automatic pressure sensing pump (41) and a one-way valve five (42) are respectively installed on the hydrogen connecting pipe (27), and the one-way valve five (42) is used for the one-way flow of hydrogen.

9. The solid hydrogen storage alcohol hydrogen gasoline diesel natural gas multi-fuel internal combustion engine according to claim 1, characterized in that: The auxiliary heating component comprises a temperature-controlled electric heating element (19) and a temperature gauge (24); the temperature-controlled electric heating element (19) is used to heat the solid-state hydrogen storage tank (21); and the temperature gauge (24) is used to measure the temperature of the solid-state hydrogen storage tank (21).

10. The solid hydrogen storage alcohol hydrogen gasoline diesel natural gas multi-fuel internal combustion engine according to claim 5, characterized in that: The exhaust pipe three (52) is provided with a temperature-controlled automatic exhaust valve (53) via the branch pipe body two.

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