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

Abstract

The utility model provides a solid-state 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-state 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 utility model, one or more fuels can be flexibly supplied to the internal combustion engine, and the conversion rate of the fuels in the conversion process is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to internal combustion engine fuel technology field, specifically, relate to a solid state hydrogen storage alcohol hydrogen gasoline diesel natural gas multi-fuel internal combustion engine. BACKGROUND

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

[0003] But the current internal combustion engine, its fuel is mostly single fuel system, for example, gasoline, methanol, natural gas, hydrogen, etc., cannot take into account the use of multiple fuels, and some fuel conversion rate is low in the conversion process. UTILITY MODEL CONTENT

[0004] The utility model solves the current internal combustion engine, a large part is still using single fuel, cannot take into account the use of multiple fuels, and some fuel conversion rate is low in the conversion process.

[0005] To solve the above problem, the utility model provides a solid state hydrogen storage alcohol hydrogen gasoline diesel natural gas multi-fuel internal combustion engine, comprising:

[0006] Multi-fuel internal combustion engine body;

[0007] Gas storage tank, with the intake pipe of multi-fuel internal combustion engine body communication, the intake pipe is equipped with flow regulating valve;

[0008] Hydrogen supply assembly and natural gas supply assembly are connected with the gas storage tank respectively;

[0009] Methanol reformer, the periphery of methanol reformer is equipped with methanol reformer jacket, the methanol reformer is connected with methanol and gasoline diesel supply assembly, to supply methanol and / or gasoline diesel through methanol and gasoline diesel supply assembly;

[0010] Solid state hydrogen storage tank, the periphery of solid state hydrogen storage tank is equipped with solid state hydrogen storage tank jacket, the solid state hydrogen storage tank is connected with hydrogen injection pipe and hydrogen discharge pipe, the hydrogen discharge pipe is communicatable with the gas storage tank, the solid state hydrogen storage tank jacket is connected with auxiliary heating assembly and cooling assembly respectively;

[0011] Wherein, the exhaust pipe of multi-fuel internal combustion engine body is communicated with the methanol reformer jacket and the solid state hydrogen storage tank jacket, the methanol reformer and the gas storage tank are equipped with mixed gas supply assembly and separation backflow component respectively, the mixed gas supply assembly is used to combustible mixed gas generated in the methanol reformer is transported to the gas storage tank, the separation backflow component is used for methanol and / or gasoline diesel in the gas storage tank backflow to the methanol reformer.

[0012] Optionally, the methanol reformer comprises a furnace body and a methanol reformer porous plate arranged in the furnace body, and a methanol reformer jacket is sleeved on the outer wall of the furnace body, and the methanol reformer porous plate is used to hold a catalyst for generating the combustible mixed gas.

[0013] Optionally, the mixed gas supply assembly comprises a mixed gas supply pipe body, a mixed gas electric valve and a one-way valve six, the mixed gas electric valve and the one-way valve six are sequentially arranged along the flow direction of the combustible mixed gas, and the one-way valve six is used for one-way flow of the mixed gas.

[0014] Optionally, the separation reflux assembly comprises a reflux pipe body, a gas-liquid separator and a one-way valve one, the reflux pipe body is used to connect the gas tank and the methanol reformer, the gas-liquid separator and the one-way valve one are sequentially arranged on the reflux pipe body along the flow direction of the methanol and / or gasoline and diesel oil, and the one-way valve one is used for one-way flow of the methanol and / or gasoline and diesel oil.

[0015] Optionally, the exhaust pipe comprises an exhaust pipe one, an exhaust pipe two and an exhaust pipe three, the exhaust pipe one is connected to the multi-fuel internal combustion engine body and the methanol reformer jacket, one end of the exhaust pipe two is connected to the methanol reformer jacket, the other end is connected to the air inlet of the temperature control fan, the exhaust pipe two is provided with an exhaust pipe valve one, the exhaust pipe two is further provided with an exhaust pipe vent valve through a branch pipe body one between the methanol reformer jacket and the exhaust pipe valve one, the exhaust pipe three is used to connect the air outlet of the temperature control fan and the solid-state hydrogen storage tank jacket, the solid-state hydrogen storage tank jacket is further connected to one end of a discharge pipe, the other end of the discharge pipe is a free exhaust end, and the other end of the pipe body is provided with an exhaust pipe valve two.

[0016] Optionally, the auxiliary heating assembly comprises a temperature control electric heating element and a temperature meter, the temperature control electric heating element is used to heat the solid-state hydrogen storage tank, and the temperature meter is used to measure the temperature of the solid-state hydrogen storage tank.

[0017] Optionally, the cooling assembly comprises a cooling box, a pump and a return pipe, the cooling box is provided with a cooling liquid, the cooling box and the pump are both arranged on a cooling liquid pipe one, one end of the cooling liquid pipe one is connected to the solid-state hydrogen storage tank jacket, 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 solid-state hydrogen storage tank jacket through a cooling liquid pipe two, the cooling box is provided with a box valve two and a box valve one at both ends of the cooling liquid pipe one, one end of the return pipe is connected to the solid-state hydrogen storage tank jacket, and the other end is connected to the pipe body between the box valve two and the cooling box of the cooling liquid pipe one.

[0018] Optionally, the connection positions of the liquid return pipe and the cooling liquid pipe with the solid-state hydrogen storage tank jacket are located on both sides of the solid-state hydrogen storage tank jacket.

[0019] Optionally, the hydrogen discharge pipe comprises a hydrogen connection pipe for connecting the solid-state hydrogen storage tank and the gas storage tank, and a hydrogen electric valve, a hydrogen automatic pressure sensing pump and a one-way valve five are respectively arranged on the hydrogen connection pipe along the direction of hydrogen flow, and the one-way valve five is used for one-way flow of hydrogen.

[0020] Optionally, a temperature control automatic exhaust valve is arranged on the exhaust pipe three through a branch pipe body two.

[0021] The beneficial effects of the utility model are as follows: the exhaust pipe is communicated with the solid-state hydrogen storage tank jacket, the waste heat of exhaust gas in the exhaust pipe of the multi-fuel internal combustion engine body is utilized to heat the solid-state hydrogen storage tank, energy is saved, and the solid-state hydrogen storage tank can be assisted by the auxiliary heating assembly, 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 assembly is communicated with the solid-state hydrogen storage tank jacket to cool the solid-state hydrogen storage tank, so that the solid-state hydrogen storage tank can stably fill hydrogen, so that the solid-state hydrogen storage tank can stably realize hydrogen storage and hydrogen release, and the hydrogen of the hydrogen release reaction can enter the gas storage tank; the exhaust pipe is communicated with the methanol reformer jacket, the waste heat of exhaust gas in the exhaust pipe of the multi-fuel internal combustion engine body is utilized to heat the methanol reformer to produce combustible mixed gas, the combustible mixed gas can also be supplied to the gas storage tank, and the separation and reflux assembly between the methanol reformer and the gas storage tank is utilized to recycle the methanol and / or gasoline and diesel oil which is not completely converted into the methanol reformer in the application scene of using methanol and / or gasoline and diesel oil as fuel, so that the overall conversion amount and conversion rate of the methanol and / or gasoline and diesel oil are improved, the content of the combustible mixed gas is improved, and in addition, the hydrogen supply assembly and the natural gas supply assembly arranged on the gas storage tank can also supply hydrogen and (methane) natural gas respectively, so that the internal combustion engine can be filled with one or more of hydrogen, natural gas, methanol and gasoline and diesel oil according to actual needs in different application scenes, the limitation of single fuel is avoided, the multi-fuel internal combustion engine body can be configured to flexibly supply fuel, and since the parallel scheme of directly supplying hydrogen and solid-state hydrogen release is provided, the solid-state hydrogen storage technology reduces the high-pressure danger and improves the hydrogen storage capacity compared with the high-pressure hydrogen cylinder storage and transportation in the prior art, so that the green hydrogen can be promoted and used. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 A structure schematic diagram of a solid-state hydrogen storage methanol hydrogen gasoline diesel oil natural gas multi-fuel internal combustion engine in the utility model embodiment is shown.

[0023] Mark explanation:

[0024] 1, multi-fuel internal combustion engine body; 2, exhaust pipe one; 3, check valve one; 4, gas-liquid separator; 5, backflow pipe body; 6, methanol reformer jacket; 7, methanol reformer perforated plate; 8, methanol reformer; 9, methanol and gasoline and diesel oil connecting pipe; 10, check valve two; 11, methanol and gasoline and diesel oil automatic pressure sensing pump; 12, oil tank electric valve; 13, methanol and gasoline and diesel oil tank; 14, cooling liquid pipe one; 15, pump; 16, tank valve one; 17, cooling tank; 18, tank valve two; 19, temperature control electric heating element; 20, liquid return pipe; 21, solid-state hydrogen storage tank; 22, exhaust pipe valve two; 23, solid-state hydrogen storage tank jacket; 24, thermometer; 25, safety pressure relief valve; 26, pressure gauge; 27, hydrogen connecting pipe; 28, hydrogen cylinder; 29, hydrogen cylinder filling port; 30, natural gas filling port; 31, natural gas cylinder; 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, check valve three; 38, check valve four; 39, hydrogen connecting pipe; 40, hydrogen electric valve; 41, hydrogen automatic pressure sensing pump; 42, check valve five; 43, mixed gas electric valve; 44, check valve six; 45, gas storage tank; 46, air inlet pipe; 47, flow regulating valve; 48, exhaust pipe two; 49, exhaust pipe vent valve; 50, exhaust pipe valve one; 51, temperature control fan; 52, exhaust pipe three; 53, temperature control automatic exhaust valve; 54, cooling liquid pipe two; 55, hydrogen filling port; 56, discharge pipe. DETAILED DESCRIPTION

[0025] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0026] In the description of the present application, the description of the terms "embodiment", "one embodiment" and "one implementation" means that the specific features, structures, materials or characteristics described in connection with the embodiment or implementation are included in at least one embodiment or implementation of the present application. In the present application, the illustrative description 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.

[0027] Referring to Figure 1 The embodiment of the present application proposes a solid-state hydrogen storage methanol hydrogen gasoline and diesel oil natural gas multi-fuel internal combustion engine, which comprises:

[0028] The multi-fuel internal combustion engine body 1;

[0029] A gas storage tank 45 is in communication with an intake pipe 46 of the multi-fuel internal combustion engine body 1, and a flow regulating valve 47 is installed on the intake pipe 46.

[0030] The gas storage tank 45 receives fuel from all fuel sources and supplies the fuel to the multi-fuel internal combustion engine body 1 through the intake pipe 46 as a storage and supply device of multi-fuel, and the flow regulating valve 47 is used to regulate the amount of fuel supply.

[0031] A hydrogen supply assembly and a natural gas supply assembly are respectively connected to the gas storage tank 45.

[0032] The hydrogen supply assembly and the natural gas supply assembly can respectively and independently supply natural gas and hydrogen into the gas storage tank 45.

[0033] A methanol reformer 8 is provided with a methanol reformer jacket 6 on the periphery, and the methanol reformer 8 is supplied with methanol and / or gasoline-diesel oil by a methanol and gasoline-diesel oil supply assembly.

[0034] A solid-state hydrogen storage tank 21 is provided with a solid-state hydrogen storage tank jacket 23 on the periphery, and the solid-state hydrogen storage tank 21 is connected with a hydrogen injection pipe and a hydrogen discharge pipe, the hydrogen discharge pipe is arranged in a communicable manner with the gas storage tank 45, and the solid-state hydrogen storage tank jacket 23 is respectively connected with an auxiliary heating assembly and a cooling assembly.

[0035] The solid-state hydrogen storage tank 21 is provided with a hydrogen storage alloy, and the hydrogen storage alloy and hydrogen can react under different temperature and pressure conditions to realize heating and hydrogen release and cooling and hydrogen storage.

[0036] The exhaust pipe of the multi-fuel internal combustion engine body 1 is communicated with the methanol reformer jacket 6 and the solid-state hydrogen storage tank jacket 23, a mixed gas supply assembly and a separation backflow assembly are arranged between the methanol reformer 8 and the gas storage tank 45, the mixed gas supply assembly is used to transport the combustible mixed gas generated in the methanol reformer 8 into the gas storage tank 45, and the separation backflow assembly is used to make the methanol and / or gasoline-diesel oil in the gas storage tank 45 backflow to the methanol reformer 8.

[0037] Specifically, the solid-state hydrogen storage tank 21 can supply hydrogen as a source in addition to the hydrogen supply assembly, and hydrogen release (hydrogen evolution) can be realized by entering the high-temperature exhaust gas in the exhaust pipe of the multi-fuel internal combustion engine body 1 into the solid-state hydrogen storage tank jacket 23, the auxiliary heating assembly can assist heating when the heat of the exhaust gas is insufficient, and cooling and hydrogen storage can be realized by injecting hydrogen into the solid-state hydrogen storage tank 21 through the hydrogen injection pipe under the action of the cooling assembly, the stored hydrogen is released by subsequent heating, and is injected into the gas storage tank 45 through the hydrogen discharge pipe, the hydrogen discharge pipe is arranged in a communicable manner with the gas storage tank 45, that is, the hydrogen discharge pipe is communicated with the gas storage tank 45 only when hydrogen release is heated, so as to avoid fuel backflow.

[0038] By means 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 outside the methanol reformer 8, the methanol reformer 8 is supplied with methanol and gasoline / diesel oil by the methanol and gasoline / diesel oil supply assembly, and after the high-temperature exhaust gas enters the methanol reformer jacket 6 by means of the exhaust pipe of the multi-fuel internal combustion engine body 1, the methanol reformer 8 is equivalent to a reaction kettle, and 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, the combustible mixed gas is mixed with methanol and / or gasoline / diesel oil. The methanol and / or gasoline / diesel oil is in liquid state, and therefore, the methanol and / or gasoline / diesel oil 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 is refluxed into the methanol reformer 8 to again perform a conversion reaction, thereby promoting the conversion of the methanol and / or gasoline / diesel oil.

[0039] It should be noted that the combustible mixed gas includes one or more of hydrogen, carbon monoxide, methanol gas, gasoline / diesel oil gas, and gasoline / diesel oil catalytic cracking products such as alkenes.

[0040] In the embodiment, the exhaust pipe is communicated with the solid hydrogen storage tank jacket 23, the waste heat of the exhaust gas in the exhaust pipe of the multi-fuel internal combustion engine body 1 is utilized to heat the solid hydrogen storage tank 21, energy is saved, and the solid hydrogen storage tank 21 can be assisted by the auxiliary heating assembly, so that the solid hydrogen storage tank 21 stably releases hydrogen; when the solid hydrogen storage tank 21 needs to be filled with hydrogen through the hydrogen injection pipe, the cooling assembly is communicated with the solid hydrogen storage tank jacket 23 to cool the solid hydrogen storage tank 21, so that the solid hydrogen storage tank 21 can stably fill hydrogen, thereby achieving the purpose that the solid hydrogen storage tank 21 stably realizes hydrogen storage and hydrogen release, and the hydrogen of the hydrogen release reaction can enter the gas storage tank 45; the exhaust pipe is communicated with the methanol reformer jacket 6, the waste heat of the exhaust gas in the exhaust pipe of the multi-fuel internal combustion engine body 1 is utilized to heat the methanol reformer 8 to generate combustible mixed gas, the combustible mixed gas can also be supplied to the gas storage tank 45, and the separation and reflux assembly between the methanol reformer 8 and the gas storage tank 45 is utilized to recycle the methanol and / or gasoline and diesel oil that is not completely converted into the methanol reformer 8 in the application scenario of using methanol and / or gasoline and diesel oil as fuel, so that the overall conversion amount and conversion rate of the methanol and / or gasoline and diesel oil are improved, the content of the combustible mixed gas is improved, and in addition, the hydrogen supply assembly and the natural gas supply assembly arranged on the gas storage tank 45 can also supply hydrogen and (methane) natural gas respectively, so that the internal combustion engine can be filled with one or more of hydrogen, natural gas, methanol and gasoline and diesel oil according to actual needs in different application scenarios, the limitation of single fuel is avoided, the multi-fuel internal combustion engine body 1 can be flexibly supplied with fuel, and since the parallel scheme of directly supplying hydrogen and releasing hydrogen from the solid hydrogen storage is provided, the solid hydrogen storage technology reduces high-pressure danger and improves hydrogen storage capacity compared with the hydrogen storage and transportation using high-pressure hydrogen cylinders in the prior art, and can promote the popularization and use of green hydrogen.

[0041] The methanol, hydrogen and natural gas can be green fuels, meet the requirements of national and world energy saving and emission reduction, and the solid hydrogen storage technology reduces high-pressure danger and improves hydrogen storage capacity compared with the hydrogen storage and transportation using high-pressure hydrogen cylinders in the prior art, can promote the popularization and use of green hydrogen, and plays a great role in the popularization and application of green carbon emission reduction on ships, trains, heavy trucks and passenger cars.

[0042] The combustible mixed gas fuel 1 mode of methanol and / or gasoline and diesel oil reforming, the natural gas single fuel 2 mode of the natural gas supply assembly, the hydrogen single fuel 3 mode of the hydrogen supply assembly supplied by the hydrogen bottle supply assembly, the hydrogen single fuel 4 mode of the hydrogen supply assembly supplied by the solid-state hydrogen storage tank supply assembly, the hydrogen fuel of the hydrogen supply assembly supplied by the solid-state hydrogen storage tank supply assembly + the hydrogen single fuel of the hydrogen supply assembly supplied by the hydrogen bottle supply assembly 5 mode, the natural gas dual fuel combination 6 mode of the combustible mixed gas fuel of methanol and / or gasoline and diesel oil reforming + the natural gas supply assembly of the natural gas supply assembly, the natural gas dual fuel combination 7 mode of the hydrogen of the hydrogen supply assembly supplied by the hydrogen bottle supply assembly + the natural gas supply assembly of the natural gas supply assembly, the natural gas dual fuel combination 8 mode of the hydrogen fuel of the hydrogen supply assembly supplied by the solid-state hydrogen storage tank supply assembly + the natural gas supply assembly of the natural gas supply assembly, the natural gas dual fuel combination 9 mode of the hydrogen fuel of the hydrogen supply assembly supplied by the solid-state hydrogen storage tank supply assembly + the hydrogen of the hydrogen supply assembly supplied by the hydrogen bottle supply assembly + the natural gas supply assembly of the natural gas supply assembly, the hydrogen dual fuel combination 10 mode of the combustible mixed gas of methanol and / or gasoline and diesel oil reforming + the hydrogen of the hydrogen supply assembly supplied by the hydrogen bottle supply assembly, the hydrogen dual fuel combination 11 mode of the hydrogen fuel of the hydrogen supply assembly supplied by the solid-state hydrogen storage tank supply assembly + the hydrogen of the hydrogen supply assembly supplied by the hydrogen bottle supply assembly, and the like can be used as fuel.

[0043] It should be noted that if the fuel in the above corresponding mode involves two or more, in use, the ratio can be combined according to the preset.

[0044] As shown in Figure 1 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 communicated with the gas 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 provided with a hydrogen bottle gas inlet 29, and the hydrogen bottle gas inlet 29 is provided with a closing valve one.

[0045] When the hydrogen is supplied by the hydrogen supply assembly, the hydrogen electric valve 33 is opened, and the hydrogen enters the gas tank 45 through the hydrogen electric valve 33, the hydrogen automatic pressure sensing pump 35 and the one-way valve three 37 on the hydrogen connecting pipe 39.

[0046] Similar to the hydrogen supply assembly, the natural gas supply assembly comprises 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 communicated with the gas 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 arranged on the natural gas connecting pipe 32, and the natural gas bottle 31 is further provided with a natural gas filling port 30, the natural gas filling port 30 is provided with a closing valve two, and the process of supplying natural gas is similar to that of supplying hydrogen, which is not described here.

[0047] As shown in Figure 1 As an optional embodiment of the utility model, the methanol reformer 8 comprises a furnace body and a methanol reformer porous plate 7 arranged in the furnace body, and a methanol reformer jacket 6 is arranged on the outer wall of the furnace body, and the methanol reformer porous plate 7 is used for containing a catalyst for generating the combustible mixed gas.

[0048] The methanol and gasoline supply assembly comprises a methanol and gasoline tank 13, a tank electric valve 12, a methanol and gasoline automatic pressure sensing pump 11, a one-way valve two 10 and a methanol and gasoline connecting pipe 9, the methanol and gasoline connecting pipe 9 is used for communicating the inside of the methanol and gasoline tank 13 and the inside bottom of the methanol reformer 8, along the flow direction of methanol and / or gasoline from the methanol and gasoline tank 13 to the methanol reformer 8, the tank electric valve 12, the methanol and gasoline automatic pressure sensing pump 11 and the one-way valve two 10 are sequentially arranged on the methanol and gasoline connecting pipe 9, and the one-way valve two 10 is used for preventing the reverse flow of methanol and / or gasoline.

[0049] Specifically, the methanol reformer 8 comprises a furnace body, the inner bottom of the furnace body is provided with a methanol reformer porous plate 7, and the methanol reformer porous plate 7 is provided with a catalyst, under the condition of the catalyst and heating, methanol and gasoline react to generate a combustible mixed gas, and a part of liquid methanol and / or gasoline is mixed.

[0050] As shown in Figure 1 As an optional embodiment of the utility model, 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 arranged on the mixed gas supply pipe body, the mixed gas electric valve 43 and the one-way valve six 44 are sequentially arranged 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.

[0051] The separation and reflux assembly includes a reflux pipe 5, a gas-liquid separator 4, and a one-way valve 3. The reflux pipe 5 is used to connect the gas storage tank 45 and the methanol reformer 8 (bottom). The gas-liquid separator 4 and the one-way valve 3 are installed sequentially on the reflux pipe 5 along the flow direction of methanol and / or gasoline and diesel. The one-way valve 3 is used for unidirectional flow of methanol and / or gasoline and diesel.

[0052] Specifically, the mixed gas supply assembly and the separation and reflux assembly are used in conjunction with each other. When using methanol and / or gasoline / diesel fuel, the methanol in the methanol and gasoline / diesel fuel tank 13 enters the lower part of the methanol reformer 8 through the fuel tank electric valve 12, the methanol and gasoline / diesel automatic pressure sensing pump 11, and the one-way valve 10 on the methanol and gasoline / diesel connecting pipe 9. It then contacts the catalyst on the upper part of the methanol reformer perforated plate 7 and is heated by the waste heat of the flue gas in the exhaust pipe 2, reacting to generate a combustible mixture. The mixed gas enters the gas storage tank 45 through the electric valve 43 and the one-way valve 44, and then enters the multi-fuel internal combustion engine 1 through the flow regulating valve 47 on the intake pipe 46 for combustion. The unconverted methanol and / or gasoline and diesel are also mixed in the combustible gas mixture and enter the gas storage tank 45. Then, through the gas-liquid separator 4 and the one-way valve 3 at the bottom of the gas storage tank 45, the methanol and / or gasoline and diesel are circulated back to the bottom of the methanol reformer 8, realizing the reflux of unreacted methanol and / or gasoline and diesel and improving the conversion rate of methanol and / or gasoline and diesel.

[0053] The catalysts in the methanol reformer 8 include methanol reforming catalysts and gasoline and diesel cracking catalysts.

[0054] like Figure 1 As shown, in an optional embodiment of this utility model, the exhaust pipe includes an exhaust pipe 2, an exhaust pipe 48, and an exhaust pipe 52. The exhaust pipe 2 connects the multi-fuel internal combustion engine body 1 and the methanol reformer jacket 6. One end of the exhaust pipe 48 is connected to the methanol reformer 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 48. An exhaust pipe vent valve 49 is also installed on the exhaust pipe 48 and between the methanol reformer jacket 6 and the exhaust pipe valve 50 via a branch pipe body. The exhaust pipe 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 an exhaust pipe valve 22 is installed on the pipe body at the other end.

[0055] Specifically, the first branch pipe is located between the second exhaust pipe 48 and the first exhaust pipe valve 50. One end of the first branch pipe is connected to the second exhaust pipe 48, and the other end is the exhaust outlet. An exhaust pipe vent valve 49 is installed on the first branch pipe.

[0056] In the optional embodiment, if only the heat of the exhaust gas is needed in the methanol reformer jacket 6, at this time, the exhaust pipe valve one 50 is closed and the exhaust pipe vent valve 49 is opened, at this time, the hydrogen release reaction in the solid-state hydrogen storage tank 21 is generally not carried out, if the hydrogen release reaction in the solid-state hydrogen storage tank 21 is needed, at this time, the exhaust pipe vent valve 49 is closed and the exhaust pipe valve one 50 is opened, so that the exhaust gas passes through the exhaust pipe one 2, the methanol reformer jacket 6, the exhaust pipe two 48, the temperature control fan 51, the exhaust pipe three 52 into the solid-state hydrogen storage tank jacket 23 in turn, the temperature control fan 51 is temperature controlled, which can play a role in preheating the exhaust gas, it should be noted that the temperature control fan 51 is provided with flue gas heating pipeline and liquid cooling pipeline, and the two pipelines are independent.

[0057] Due to the exhaust gas discharged from the multi-fuel internal combustion engine body 1 can be used to different degrees, the rational utilization degree of the exhaust gas is improved, the efficiency of waste heat utilization is improved, and the components can effectively cooperate with each other, and the cooling reaction (hydrogenation) and the heating reaction (hydrogen release) can share part of the pipeline.

[0058] As shown in Figure 1 As an optional embodiment of the utility model, the auxiliary heating assembly includes a temperature control electric heating element 19 and a temperature table 24, the temperature control electric heating element 19 is used to heat the solid-state hydrogen storage tank 21, and the temperature table 24 is used to measure the temperature of the solid-state hydrogen storage tank 21.

[0059] Specifically, when the hydrogen release reaction is needed, the temperature control electric heating element 19 is controlled to heat the solid-state hydrogen storage tank 21 according to the temperature required by the hydrogen release reaction in the solid-state hydrogen storage tank 21, and the heating is generally auxiliary heating, so that the heat required for hydrogen release is generally mainly derived from the heat contained in the exhaust gas in the exhaust pipe, and the temperature of the reaction in the solid-state hydrogen storage tank 21 is measured by the temperature table 24 to control the progress of the reaction. The cooling assembly realizes the hydrogen release process, which will be explained in detail below.

[0060] As shown in Figure 1 As an optional embodiment of the utility model, the cooling assembly includes a cooling box 17, a pump 15 and a liquid return pipe 20, the cooling box 17 is provided with cooling liquid, the cooling box 17 and the pump 15 are installed on the cooling liquid pipe one 14, one end of the cooling liquid pipe one 14 is communicated with the solid-state hydrogen storage tank jacket 23, the other end is communicated with the liquid inlet of the temperature control fan 51, the liquid outlet of the temperature control fan 51 and the solid-state hydrogen storage tank jacket 23 are communicated through the cooling liquid pipe two 54, the two ends of the cooling box 17 and located on the cooling liquid pipe one 14 are respectively provided with the box valve two 18 and the box valve one 16, one end of the liquid return pipe 20 is communicated with the solid-state hydrogen storage tank jacket 23, and the other end is communicated with the pipe body between the box valve two 18 and the cooling box 17 of the cooling liquid pipe one 14.

[0061] The hydrogen injection port 55 is installed on the solid hydrogen storage tank 21, and a valve is installed on the hydrogen injection port 55. The hydrogen injection port 55 is used for injecting hydrogen.

[0062] When the hydrogen fuel stored in the solid hydrogen storage tank 21 is used, the pump 15 and the tank valve 1 6 are closed, the tank valve 2 18 is opened, the coolant in the solid hydrogen storage tank jacket 23 is completely discharged into the cooling tank 17, the tank valve 2 18 is closed, the exhaust pipe valve 2 22 is opened, and the exhaust pipe vent valve 49 is closed (and the exhaust pipe valve 1 50 is opened). The exhaust gas of the internal combustion engine passes through the exhaust pipe 1 2, the methanol reformer jacket 6, the exhaust pipe 2 48, the exhaust pipe valve 1 50, the temperature control fan 51, and the exhaust pipe 3 52 into the solid hydrogen storage tank jacket 23, and the solid hydrogen storage tank 21 is heated by the exhaust gas. At the same time, auxiliary heating is performed by the temperature control electric heating fan 19 (when the heat provided by the exhaust gas for the hydrogen evolution reaction is insufficient). The temperature control automatic exhaust valve 53 installed on the branch pipe 2 ensures that the solid hydrogen storage tank 21 will not be overheated and unsafe due to exhaust gas heating.

[0063] The hydrogen gas evolved in the solid hydrogen storage tank 21 passes through the hydrogen electric valve 40 on the hydrogen connection pipe 27, the hydrogen automatic pressure sensing pump 41, and the one-way valve 5 42 into the gas storage tank 45, and then passes through the flow regulating valve 47 into the multi-fuel internal combustion engine body 1 for combustion.

[0064] Specifically, the coolant can be water. When the solid hydrogen storage tank 21 is used for gaseous storage, the exhaust pipe vent valve 49 installed on the exhaust pipe 2 48 is opened and the exhaust pipe valve 1 50 is closed, the exhaust pipe valve 2 22 is closed, the tank valve 1 6 and the pump 15 are opened, and the tank valve 2 18 is closed. The hydrogen enters the solid hydrogen storage tank 21 through the hydrogen injection port 55 on the solid hydrogen storage tank 21. The coolant in the coolant pipe 1 4 passes through the cooling tank 17, the tank valve 1 6, the pump 15, the temperature control fan 51 (the liquid cooling pipe in the temperature control fan 51), the coolant pipe 2 54, and the solid hydrogen storage tank jacket 23 in sequence, and then enters the cooling tank 17 through the liquid return pipe 20, realizing the circulation cooling of the coolant. Generally, the liquid return pipe 20 is used as the discharge pipe of the coolant, and the discharged coolant enters the cooling tank 17. The temperature control fan 51 can perform air cooling on the coolant in the coolant pipe 1 4 passing into the coolant pipe 2 54 according to the actual cooling demand, improve the cooling effect, and promote the completion of hydrogenation.

[0065] In this optional embodiment, the cooperation of the components in the cooling assembly can realize the hydrogen storage into the solid hydrogen storage tank 21 under the circulation of the coolant, and will not affect the exhaust gas discharge.

[0066] As Figure 1As shown in the utility model discloses a kind of optional embodiments of the utility model, the connection position of the liquid return pipe 20 and the cooling liquid pipe one 14 with the solid-state hydrogen storage tank jacket 23 is located at both sides of the solid-state hydrogen storage tank jacket 23.

[0067] Specifically, liquid return pipe 20 and cooling liquid pipe one 14 are respectively used as the liquid outlet and liquid inlet of solid-state hydrogen storage tank jacket 23, in order to maximize the cooling liquid circulation of solid-state hydrogen storage tank 21, the distance of liquid return pipe 20 and cooling liquid pipe one 14 should be as far as possible, preferably, they are arranged at both sides of solid-state hydrogen storage tank jacket 23, for example, at left and right sides in Figure 1 To ensure that the cooling liquid can cool every position in solid-state hydrogen storage tank jacket 23 as far as possible, improve the efficiency of hydrogen storage (hydrogen filling).

[0068] As shown in the utility model discloses a kind of optional embodiments of the utility model, the connection position of the liquid return pipe 20 and the cooling liquid pipe one 14 with the solid-state hydrogen storage tank jacket 23 is located at both sides of the solid-state hydrogen storage tank jacket 23. Figure 1 Specifically, the setting of hydrogen connection pipe 27, when hydrogen fuel is needed, solid-state hydrogen storage tank 21 is heated by auxiliary heating assembly, and the hydrogen gas separated out passes through hydrogen connection pipe 27, after opening hydrogen electric valve 40, hydrogen gas passes through hydrogen electric valve 40, hydrogen automatic pressure sensing pump 41 and one-way valve five 42 along hydrogen connection pipe 27 in sequence, one-way valve five 42 is used for the one-way flow of hydrogen, and then enters gas storage tank 45, to obtain the hydrogen required for the operation of gas storage tank 45, hydrogen automatic pressure sensing pump 41 can sense the pressure of hydrogen, to facilitate the opening size of hydrogen electric valve 40, one-way valve five 42 ensures the one-way flow of hydrogen from solid-state hydrogen storage tank 21 to gas storage tank 45, it should be noted that pressure gauge 26 is also provided on hydrogen connection pipe 27, and safety pressure relief valve 25 is also installed on hydrogen connection pipe 27 through branch pipe body three, to monitor the pressure of hydrogen in hydrogen connection pipe 27 and emptying pressure relief, to improve the safety of hydrogen use.

[0069] As shown in the utility model discloses a kind of optional embodiments of the utility model, in order to improve the use safety of exhaust pipe, temperature control automatic exhaust valve 53 is installed on exhaust pipe three 52 through branch pipe body two.

[0070] Figure 1 Specifically, one end of branch pipe body two is communicated with exhaust pipe three 52, and the other end is exhaust port.

[0071] Specifically, one end of branch pipe body two is communicated with exhaust pipe three 52, and the other end is exhaust port.

[0072] ​In the optional embodiment, the exhaust pipe three 52 as a part of the exhaust pipe can open the temperature control automatic exhaust valve 53 when exhaust or pressure relief is needed, improving the safety of the exhaust gas in the exhaust pipe.

[0073] The above description is merely a specific implementation of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application should not be limited to the embodiments shown herein, but should be consistent with the widest scope of the principles and novel features of the present application.

[0074] Although the present application is disclosed as above, the protection scope of the present application is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, and these changes and modifications will fall within the protection scope of the present application.

Claims

1. A solid state hydrogen storage alcohol hydrogen gas diesel natural gas multi-fuel internal combustion engine characterized by, The utility model relates to a kind of multi-fuel internal combustion engine bodies (1);Gas tank (45) is communicated with the intake pipe (46) of the multi-fuel internal combustion engine body (1), and flow regulating valve (47) is installed on the intake pipe (46);Hydrogen supply assembly and natural gas supply assembly are connected with the gas tank (45) respectively;Methanol reformer (8), the periphery of the methanol reformer (8) is equipped with methanol reformer jacket (6), and the methanol reformer (8) is connected with methanol and gasoline-diesel oil supply assembly;Solid hydrogen storage tank (21), the periphery of the solid hydrogen storage tank (21) is equipped with solid hydrogen storage tank jacket (23), and the solid hydrogen storage tank (21) is connected with hydrogen injection pipe and hydrogen discharge pipe, and the hydrogen discharge pipe is communicatable with the gas tank (45), and the solid hydrogen storage tank jacket (23) is connected with auxiliary heating assembly and cooling assembly respectively;Wherein, the exhaust pipe of the multi-fuel internal combustion engine body (1) is communicated with the methanol reformer jacket (6) and the solid hydrogen storage tank jacket (23), and mixed gas supply assembly and separation backflow component are respectively arranged between the methanol reformer (8) and the gas tank (45), the mixed gas supply assembly is used to combustible mixed gas generated in the methanol reformer (8) is transported to the gas tank (45), and the separation backflow component is used for methanol and / or gasoline-diesel oil in the gas tank (45) backflow to the methanol reformer (8). The methanol reformer (8) includes furnace body and methanol reformer perforated plate (7) arranged in the furnace body, the methanol reformer jacket (6) is sleeved on the outer wall of the furnace body, and the methanol reformer perforated plate (7) is used to hold the catalyst for generating the combustible mixed gas. The mixed gas supply assembly includes mixed gas supply pipe body, mixed gas electric valve (43) and one-way valve six (44) installed on the mixed gas supply pipe body, the mixed gas electric valve (43) and one-way valve six (44) are sequentially arranged 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. The separation backflow component includes backflow pipe body (5), gas-liquid separator (4) and one-way valve one (3), the backflow pipe body (5) is used to communicate the gas tank (45) and the methanol reformer (8), the gas-liquid separator (4) and one-way valve one (3) are sequentially installed on the backflow pipe body (5) along the flow direction of methanol and / or gasoline-diesel oil, and the one-way valve one (3) is used for the one-way flow of methanol and / or gasoline-diesel oil. ​ ​ ​ 2. The solid state hydrogen storage alcohol hydrogen gas diesel natural gas multi-fuel internal combustion engine of claim 1, wherein, ​ 3. The solid state hydrogen storage alcohol hydrogen gas diesel natural gas multi-fuel internal combustion engine of claim 1, wherein, ​ 4. The solid state hydrogen storage alcohol hydrogen gas diesel natural gas multi-fuel internal combustion engine of claim 1, wherein, ​ 5. The solid state hydrogen storage alcohol hydrogen gas diesel natural gas multi-fuel internal combustion engine of claim 1, wherein, The exhaust pipe comprises an exhaust pipe one (2), an exhaust pipe two (48), and an exhaust pipe three (52). The exhaust pipe one (2) is used for connecting the multi-fuel internal combustion engine body (1) and the methanol reformer jacket (6). One end of the exhaust pipe two (48) is connected with the methanol reformer jacket (6), and the other end is connected with the air inlet of the temperature control fan (51). The exhaust pipe two (48) is provided with an exhaust pipe valve one (50). The exhaust pipe two (48) is further provided with an exhaust pipe vent valve (49) through a branch pipe body one between the methanol reformer jacket (6) and the exhaust pipe valve one (50). The exhaust pipe three (52) is used for connecting the air outlet of the temperature control fan (51) and the solid-state hydrogen storage tank jacket (23). The solid-state hydrogen storage tank jacket (23) is further connected with one end of a discharge pipe (56). The other end of the discharge pipe (56) is a free exhaust end, and the pipe body of the other end is provided with an exhaust pipe valve two (22).

6. The solid state hydrogen storage alcohol hydrogen gas diesel natural gas multi-fuel internal combustion engine of claim 5, wherein, The cooling assembly comprises a cooling box (17), a pump (15), and a return pipe (20). The cooling box (17) is provided with cooling liquid. The cooling box (17) and the pump (15) are both installed on a cooling liquid pipe one (14). One end of the cooling liquid pipe one (14) is connected with the solid-state hydrogen storage tank jacket (23), and the other end is connected with the liquid inlet of the temperature control fan (51). The liquid outlet of the temperature control fan (51) is connected with the solid-state hydrogen storage tank jacket (23) through a cooling liquid pipe two (54). The two ends of the cooling box (17) and the pipe body between the cooling liquid pipe one (14) and the cooling box (17) are respectively provided with a box valve two (18) and a box valve one (16).

7. The solid state hydrogen storage alcohol hydrogen gas diesel natural gas multi-fuel internal combustion engine of claim 6, wherein, The connection positions of the return pipe (20) and the cooling liquid pipe one (14) with the solid-state hydrogen storage tank jacket (23) are located on both sides of the solid-state hydrogen storage tank jacket (23).

8. The solid state hydrogen storage alcohol hydrogen gas diesel natural gas multi-fuel internal combustion engine of claim 2, wherein, The hydrogen discharge pipe comprises a hydrogen connection pipe (27). The hydrogen connection pipe (27) is used for connecting the solid-state hydrogen storage tank (21) and the gas storage tank (45). Along the direction of hydrogen flow, the hydrogen connection pipe (27) is respectively provided with a hydrogen electric valve (40), a hydrogen automatic pressure sensing pump (41), and a one-way valve five (42). The one-way valve five (42) is used for the one-way flow of hydrogen.

9. The solid state hydrogen storage alcohol hydrogen gas diesel natural gas multi-fuel internal combustion engine of claim 1, wherein, The auxiliary heating assembly comprises a temperature control electric heating element (19) and a temperature table (24). The temperature control electric heating element (19) is used for heating the solid-state hydrogen storage tank (21). The temperature table (24) is used for measuring the temperature of the solid-state hydrogen storage tank (21).

10. The solid state hydrogen storage alcohol hydrogen gas diesel natural gas multi-fuel internal combustion engine of claim 5, wherein, The exhaust pipe three (52) is provided with a temperature control automatic exhaust valve (53) through a branch pipe body two.

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