Methanol engine starting method and apparatus, heating device, and computer medium

Abstract

A methanol engine starting method, relating to the technical field of automobiles. The starting method is applied to a heating device. The heating device heats, by igniting methanol fuel, a methanol engine connected to the heating device. The starting method comprises: measuring the methanol engine to obtain a first engine water temperature of the methanol engine, and determining whether the first engine water temperature is less than a first temperature threshold value; if it is determined that the first engine water temperature is less than the first temperature threshold value, heating the methanol engine, and measuring the methanol engine to obtain a second engine water temperature of the methanol engine; and when the second engine water temperature is greater than or equal to a second temperature threshold value, controlling the methanol engine to inject methanol fuel to complete starting. The present application further relates to a methanol engine starting apparatus, a heating device, and a computer readable storage medium.

Description

Methanol engine starting method, device, heating equipment and computer medium

[0001] Related applications

[0002] This application claims priority to Chinese patent application number 202311508398.5 filed on November 13, 2023 and Chinese patent application number 202323064499.6 filed on November 13, 2023, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of automobile technology, and in particular to a methanol engine starting method, device, heating equipment and computer-readable storage medium. Background Art

[0004] With the continuous development of new energy technologies, methanol fuel has gradually become the main fuel used in new energy vehicles due to its abundant resources, good power performance, high thermal efficiency, low energy consumption, and good emissions. However, once a new energy vehicle starts its methanol engine in a low-temperature environment below 0°C, the methanol fuel injected into the methanol engine will not be able to fully evaporate due to its high latent heat of vaporization and poor volatility in low-temperature environments, which can lead to methanol engines being prone to starting failures.

[0005] In related technologies, when a methanol engine is started in a low-temperature environment, the methanol engine often first injects part of the gasoline fuel to complete the startup, thereby increasing the engine water temperature, and then switches from gasoline fuel to methanol fuel when the engine water temperature reaches a preset temperature threshold. In this way, the methanol engine can ensure that the injected methanol fuel can be completely vaporized.

[0006] However, using the above method to start the methanol engine in a low-temperature environment requires technicians to add an additional gasoline fuel supply system to the methanol engine. This will greatly increase the purchase cost of new energy vehicles and the emissions of new energy vehicles will easily exceed the standard.

[0007] Summary of the Invention

[0008] The main purpose of this application is to provide a methanol engine starting method, device, heating equipment and computer-readable storage medium, aiming to enable the heating equipment to heat the methanol engine, so that the methanol engine can be started in a low temperature environment by only injecting methanol fuel.

[0009] To achieve the above objectives, the present application provides a method for starting a methanol engine. The method is applied to a heating device, wherein the heating device heats a methanol engine connected to the heating device by igniting methanol fuel. The method comprises the following steps:

[0010] detecting the methanol engine to obtain a first engine water temperature of the methanol engine, and determining whether the first engine water temperature is less than a first temperature threshold;

[0011] If it is determined that the first engine water temperature is less than the first temperature threshold, heating the methanol engine and testing the methanol engine to obtain a second engine water temperature of the methanol engine;

[0012] When the second engine water temperature is greater than or equal to a second temperature threshold, the methanol engine is controlled to inject methanol fuel to complete startup, wherein the second temperature threshold is greater than the first temperature threshold.

[0013] In one embodiment, the heating device includes a methanol ignition unit, and the step of heating the methanol engine includes:

[0014] Acquire methanol fuel and generate a mixed fuel gas corresponding to the methanol fuel in the methanol ignition unit;

[0015] Low-temperature engine circulating water in the methanol engine is obtained, and the methanol engine is heated by heat generated by the mixed fuel gas and the low-temperature engine circulating water.

[0016] In one embodiment, the heating device further comprises: a methanol delivery unit and an air intake unit, wherein the methanol delivery unit is connected to the methanol ignition unit, and the methanol ignition unit is connected to the air intake unit;

[0017] The step of generating a mixed fuel gas corresponding to the methanol fuel in the methanol ignition unit includes:

[0018] obtaining a first control signal;

[0019] The methanol delivery unit and the air intake unit are controlled based on the first control signal to generate a mixed fuel gas corresponding to the methanol fuel in the methanol ignition unit.

[0020] In one embodiment, the methanol ignition unit includes: a methanol injector oil rail, an electronically controlled methanol injector, and a pre-combustion chamber, wherein the methanol injector oil rail is connected to the electronically controlled methanol injector, and the electronically controlled methanol injector is connected to the pre-combustion chamber;

[0021] The step of controlling the methanol delivery unit and the air intake unit based on the first control signal to generate a mixed fuel gas corresponding to the methanol fuel in the methanol ignition unit includes:

[0022] controlling the methanol delivery unit to input the methanol fuel to the methanol injector rail based on the first control signal, and controlling the air intake unit to input air to the pre-combustion chamber based on the first control signal;

[0023] A second control signal is obtained, and based on the second control signal, the electronically controlled methanol injector is controlled to inject the methanol fuel into the pre-combustion chamber, so as to generate a mixed fuel gas corresponding to the methanol fuel in the pre-combustion chamber through the methanol fuel and the air.

[0024] In one embodiment, the heating device further comprises: a heat exchange unit, the heat exchange unit being connected to the methanol ignition unit;

[0025] The step of obtaining low-temperature engine circulating water in the methanol engine includes:

[0026] obtaining a third control signal;

[0027] The heat exchange unit is controlled based on the third control signal so that the low-temperature engine circulating water in the methanol engine enters the heat exchange unit.

[0028] In one embodiment, after the step of controlling the methanol engine to inject methanol fuel to complete startup, the method further includes:

[0029] detecting the methanol engine to obtain a third engine water temperature of the methanol engine, and determining whether the third engine water temperature is greater than or equal to a third temperature threshold;

[0030] If it is determined that the third engine water temperature is greater than or equal to the third temperature threshold, heating the methanol engine is stopped, wherein the third temperature threshold is greater than the second temperature threshold.

[0031] In one embodiment, after the step of controlling the methanol engine to inject methanol fuel to complete startup, the method further includes:

[0032] Detecting the methanol engine to obtain a real-time methanol concentration value of the methanol engine, and determining whether the real-time methanol concentration value is greater than or equal to a methanol concentration threshold;

[0033] If it is determined that the real-time methanol concentration value is greater than or equal to the methanol concentration threshold, a preset reminder message is output and heating of the methanol engine is stopped.

[0034] In addition, to achieve the above-mentioned purpose, the present application further provides a methanol engine starting device, which is applied to a heating device, and the heating device heats the methanol engine connected to the heating device by igniting methanol fuel. The device comprises:

[0035] a first detection module, detecting the methanol engine to obtain a first engine water temperature of the methanol engine, and determining whether the first engine water temperature is less than a first temperature threshold;

[0036] a second detection module, configured to heat the methanol engine and detect the methanol engine to obtain a second engine water temperature of the methanol engine if it is determined that the first engine water temperature is less than the first temperature threshold;

[0037] The engine starting module is used to control the methanol engine to inject methanol fuel to complete starting when the second engine water temperature is greater than or equal to a second temperature threshold, wherein the second temperature threshold is greater than the first temperature threshold.

[0038] In addition, to achieve the above-mentioned purpose, the present application further provides a heating device, which includes: a heat exchange shell, a methanol delivery unit, a methanol ignition unit, a heat exchange unit and an air intake unit;

[0039] The heat exchange unit, the air intake unit and the methanol ignition unit are disposed in the heat exchange shell, and the methanol ignition unit is connected to the heat exchange unit and the air intake unit respectively;

[0040] The methanol ignition unit is connected to the methanol delivery unit to ignite the methanol fuel delivered by the methanol delivery unit.

[0041] In one embodiment, the methanol ignition unit comprises: a methanol injector rail, a methanol injector, an ignition electrode, a pre-combustion chamber, and a main combustion chamber;

[0042] The main combustion chamber is connected to the heat exchange unit, the main combustion chamber includes a pre-combustion chamber shell, the pre-combustion chamber shell forms the pre-combustion chamber in the main combustion chamber, and the pre-combustion chamber is connected to the air intake unit;

[0043] The ignition electrode is arranged in the pre-combustion chamber, the ignition electrode is connected to the methanol injector, the methanol injector is connected to the methanol injector oil rail, and the methanol injector oil rail is connected to the methanol delivery unit;

[0044] The methanol injector is an electronically controlled methanol injector or a mechanical methanol injector.

[0045] In one embodiment, the main combustion chamber further comprises a heat exchange fin;

[0046] The heat exchange plate is connected to the heat exchange unit.

[0047] In one embodiment, the number of the ignition electrodes is greater than or equal to a preset number of electrodes, wherein the preset number of electrodes is greater than or equal to 2.

[0048] In one embodiment, the methanol ignition unit further comprises: an exhaust channel, a muffler, and a drainage channel;

[0049] The muffler is provided on the drainage passage, and the drainage passage and the exhaust passage are each connected to the main combustion chamber.

[0050] In one embodiment, the heat exchange unit includes: a heat exchange medium channel, a heat exchange medium inlet, a heat exchange medium outlet, an electronic water pump, and an electronic water pump water inlet;

[0051] The heat exchange medium inlet is connected to the heat exchange medium channel, and the heat exchange medium channel is connected to the heat exchange medium outlet and the methanol ignition unit respectively;

[0052] The water inlet of the electronic water pump is connected to the electronic water pump, and the electronic water pump is connected to the heat exchange medium inlet.

[0053] In one embodiment, the methanol delivery unit includes: a methanol tank, an electric infusion pump, and a methanol filter;

[0054] The methanol tank is connected to the electric infusion pump, the electric infusion pump is connected to the methanol filter, and the methanol filter is connected to the methanol ignition unit.

[0055] In one embodiment, the methanol tank includes: a methanol tank shell, a liquid level gauge and an oil suction filter, and the liquid level gauge and the oil suction filter are both configured on the methanol tank shell.

[0056] In one embodiment, the air intake unit includes: an air intake filter and an air intake fan, the air intake filter is connected to the air intake fan, and the air intake fan is connected to the methanol ignition unit.

[0057] In one embodiment, the heating device is further equipped with a methanol vapor concentration sensor and a high temperature alarm sensor;

[0058] The methanol vapor concentration sensor and the high temperature alarm sensor are respectively arranged on the heat exchange shell, the methanol vapor concentration sensor is connected to the methanol ignition unit, and the high temperature alarm sensor is connected to the heat exchange unit.

[0059] In one embodiment, the heating device is further equipped with a controller;

[0060] The controller is arranged in the heat exchange shell and is connected to the methanol ignition unit, the heat exchange unit, the methanol delivery unit and the air intake unit respectively.

[0061] In addition, to achieve the above-mentioned purpose, the present application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the methanol engine starting method as described above are implemented.

[0062] The embodiments of the present application provide a methanol engine starting method, device, heating equipment and computer-readable storage medium, wherein the heating equipment heats a methanol engine connected to itself by igniting methanol fuel; obtains a first engine water temperature of the methanol engine by detecting the methanol engine, and determines whether the first engine water temperature is less than a first temperature threshold; if it is determined that the first engine water temperature is less than the first temperature threshold, heats the methanol engine, and detects the methanol engine to obtain a second engine water temperature of the methanol engine; when the second engine water temperature is greater than or equal to the second temperature threshold, controls the methanol engine to inject methanol fuel to complete starting, wherein the second temperature threshold is greater than the first temperature threshold.

[0063] In this embodiment, when the methanol engine is started in a low-temperature environment, the heating device first detects the methanol engine connected to itself to obtain the first engine water temperature of the methanol engine when it is not started, and determines whether the first engine water temperature is less than a preset first temperature threshold. Afterwards, if the heating device determines that the first engine water temperature is less than the first temperature threshold, the methanol engine is heated. At the same time, during the process of heating the methanol engine, the heating device detects the methanol engine again to obtain the second engine water temperature of the methanol engine. Finally, when the heating device determines that the second engine water temperature is greater than the second temperature threshold, the heating device controls the methanol engine to inject methanol fuel to complete the startup.

[0064] The heating equipment includes: a heat exchange shell, a methanol delivery unit, a methanol ignition unit, a heat exchange unit and an air intake unit; the heat exchange unit, the air intake unit and the methanol ignition unit are arranged in the heat exchange shell, and the methanol ignition unit is connected to the heat exchange unit and the air intake unit respectively; the methanol ignition unit is connected to the methanol delivery unit to ignite the methanol fuel delivered by the methanol delivery unit.

[0065] That is, the heating device provided in the present application is configured by arranging a heat exchange unit, an air intake unit and a methanol ignition unit on a heat exchange shell, and connecting the heat exchange unit and the air intake unit to the methanol ignition unit respectively. At the same time, a methanol delivery unit is configured to be connected to the methanol ignition unit through a pipeline, so that the methanol delivery unit delivers methanol fuel to the methanol ignition unit through the pipeline, and the air intake unit delivers air to the methanol ignition unit, so that the methanol ignition unit can ignite the methanol fuel, causing the methanol fuel to burn and generate heat, and then allowing the engine circulating cooling water to obtain the heat generated when the methanol fuel is ignited through the heat exchange unit, and finally the engine circulating cooling water carries the heat to heat the methanol engine to increase the temperature of the methanol engine.

[0066] In this way, the present application solves the technical problem in the related technology that technicians need to spend a lot of money to add an additional gasoline fuel supply system in the methanol engine to ensure that when the methanol engine is started in a low-temperature environment, it can complete the start-up by first injecting part of the gasoline fuel. That is, the present application ignites the methanol fuel through a heating device to generate heat, and uses the heat to heat the engine circulating water of the methanol engine to increase the temperature of the methanol engine, so that when the methanol fuel is injected into the methanol engine in a low-temperature environment, the methanol fuel can also be fully volatilized and form a mixed fuel gas, thereby allowing the methanol engine to complete the start-up in a low-temperature environment relying solely on methanol fuel. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] FIG1 is a schematic flow chart of a first embodiment of a method for starting a methanol engine according to the present application;

[0068] FIG2 is a schematic diagram of the structural connection of a heating device involved in an embodiment of a method for starting a methanol engine of the present application;

[0069] FIG3 is a schematic diagram of the detailed structure of the heating device involved in an embodiment of the methanol engine starting method of the present application;

[0070] FIG4 is a schematic diagram of a single-hole injection structure according to an embodiment of a method for starting a methanol engine of the present application;

[0071] FIG5 is a schematic diagram of a multi-hole injection structure involved in an embodiment of a method for starting a methanol engine of the present application;

[0072] FIG6 is a schematic diagram of the ignition electrode structure involved in an embodiment of the methanol engine starting method of the present application;

[0073] FIG7 is a flow chart of a preferred embodiment of a method for starting a methanol engine according to the present application;

[0074] FIG8 is a schematic diagram of functional modules involved in an embodiment of a starting device for a methanol engine of the present application.

[0075] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

[0076] Explanation of the accompanying symbols 1. Methanol tank; 2. Electric infusion pump; 3. Methanol filter; 4. Controller; 5. Methanol injector oil rail; 6. Electronically controlled methanol injector; 7. Ignition electrode; 8. Methanol spray; 9. Pre-combustion chamber; 10. Main combustion chamber; 11. Heat exchange medium channel; 12. Main combustion chamber shell; 13. Heat exchange shell; 14. Exhaust channel; 15. Muffler; 16. Heat exchange plate; 17. Heat exchange medium inlet; 18. Heat exchange medium outlet; 19. Electronic water pump; 20. Electronic water pump water inlet; 21. Drain pipe; 22. Air intake filter; 23. Air intake fan; 24. Methanol vapor concentration sensor; 25. High temperature alarm sensor; 26. Methanol tank shell; 27. Liquid level gauge; 28. Oil suction filter; 29. ​​Oil filling hole; 30. Heat exchange unit; 31. Methanol ignition unit; 32. Air intake unit; 33. Methanol delivery unit. DETAILED DESCRIPTION

[0077] It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0078] It should be noted that the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0079] In the embodiments of the present application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0080] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0081] With the continuous development of new energy technologies, methanol fuel has gradually become the main fuel used in new energy vehicles due to its abundant resources, good power performance, high thermal efficiency, low energy consumption, and good emissions. However, once a new energy vehicle starts its methanol engine in a low-temperature environment below 0°C, the methanol fuel injected into the methanol engine will not be able to fully evaporate due to its high latent heat of vaporization and poor volatility in low-temperature environments, which can lead to methanol engines being prone to starting failures.

[0082] In related technologies, when a methanol engine is started in a low-temperature environment, the methanol engine often first injects part of the gasoline fuel to complete the startup, thereby increasing the engine water temperature, and then switches from gasoline fuel to methanol fuel when the engine water temperature reaches a preset temperature threshold. In this way, the methanol engine can ensure that the injected methanol fuel can be completely vaporized.

[0083] However, using the above method to start the methanol engine in a low-temperature environment requires technicians to add an additional gasoline fuel supply system to the methanol engine. This will greatly increase the purchase cost of new energy vehicles and the emissions of new energy vehicles will easily exceed the standard.

[0084] In response to the above phenomenon, the present application proposes a methanol engine starting method, which is applied to a heating device, and the heating device is connected to the methanol engine. The methanol engine starting method includes the following steps: detecting the methanol engine to obtain a first engine water temperature of the methanol engine, and judging whether the first engine water temperature is less than a first temperature threshold; if it is judged that the first engine water temperature is less than the first temperature threshold, heating the methanol engine, and detecting the methanol engine to obtain a second engine water temperature of the methanol engine; when the second engine water temperature is greater than or equal to the second temperature threshold, controlling the methanol engine to inject methanol fuel to complete the startup, wherein the second temperature threshold is greater than the first temperature threshold.

[0085] In this way, the present application solves the technical problem in the related technology that technicians need to spend a lot of money to add an additional gasoline fuel supply system in the methanol engine to ensure that when the methanol engine is started in a low-temperature environment, it can complete the start-up by first injecting part of the gasoline fuel. That is, the present application ignites the methanol fuel through a heating device to generate heat, and uses the heat to heat the engine circulating water of the methanol engine to increase the temperature of the methanol engine, so that when the methanol fuel is injected into the methanol engine in a low-temperature environment, the methanol fuel can also be fully volatilized and form a mixed fuel gas, thereby allowing the methanol engine to complete the start-up in a low-temperature environment relying solely on methanol fuel.

[0086] Based on the above-mentioned heating device and the overall concept of the methanol engine starting method of the present application, various embodiments of the methanol engine starting method of the present application are further proposed.

[0087] Please refer to FIG. 1 , which is a flow chart of a first embodiment of a method for starting a methanol engine according to the present application.

[0088] Although a logical sequence is shown in the flowchart, in some cases, the methanol engine starting method of the present application can also perform the steps shown or described in a different order than here.

[0089] The methanol engine starting method of the present application is applied to a heating device, wherein the heating device heats a methanol engine connected to the heating device by igniting methanol fuel;

[0090] As shown in FIG1 , in this embodiment, the method for starting a methanol engine of the present application may include the following steps:

[0091] Step S10: detecting the methanol engine to obtain a first engine water temperature of the methanol engine, and determining whether the first engine water temperature is less than a first temperature threshold;

[0092] In this embodiment, when the methanol engine needs to be started in a low-temperature environment, the heating device first detects the methanol engine connected to itself, thereby obtaining the first engine water temperature of the methanol engine in the unstarted state, and determines whether the first engine water temperature is lower than the first temperature threshold preset by the technician.

[0093] When the methanol engine is started in a low temperature environment below 0°C, the heating device first calls its own configured temperature sensor to detect the methanol engine, thereby obtaining the first engine water temperature corresponding to the low-temperature engine circulating water in the methanol engine when the methanol engine is not started. At the same time, the heating device obtains the first temperature threshold T1 preset by the technician, and compares the first engine water temperature with the first temperature threshold T1 to determine whether the first engine water temperature is less than the first temperature threshold T1.

[0094] Step S20: If it is determined that the first engine water temperature is lower than the first temperature threshold, heating the methanol engine and testing the methanol engine to obtain a second engine water temperature of the methanol engine;

[0095] In this embodiment, if the heating device determines that the first engine water temperature is lower than the first temperature threshold, methanol fuel is obtained and ignited to generate heat. The heating device heats the methanol engine with the heat. At the same time, the heating device detects the methanol engine again to obtain the second engine water temperature of the methanol engine during the heating process.

[0096] If the heating device determines that the first engine water temperature is lower than the first temperature threshold T1, it determines that the methanol engine cannot complete the starting operation at the current temperature. The heating device then obtains methanol fuel and ignites the methanol fuel to generate heat. The heating device then heats the low-temperature engine circulating water in the methanol engine based on the generated heat to increase the temperature of the methanol engine. At the same time, the heating device calls the above-mentioned temperature sensor to detect the methanol engine again, thereby obtaining the second engine water temperature corresponding to the engine circulating water in the methanol engine when the methanol engine is heated.

[0097] In one embodiment, the heating device includes a methanol ignition unit. The step of "heating the methanol engine" in step S20 may specifically include:

[0098] Step S201: obtaining methanol fuel, and generating a mixed fuel gas corresponding to the methanol fuel in the methanol ignition unit;

[0099] Step S202: obtaining low-temperature engine circulating water in the methanol engine, and heating the methanol engine by using the heat generated by the mixed fuel gas and the low-temperature engine circulating water;

[0100] In this embodiment, when the heating device needs to heat the methanol engine, it first obtains methanol fuel through the methanol fuel supply system in the methanol engine, so that the methanol fuel generates a mixed fuel gas in the heating device. The heating device then ignites the mixed fuel gas to make the mixed fuel gas burn and generate heat. Afterwards, the heating device controls the low-temperature engine circulating water in the methanol engine to flow in through the pipeline, and heats the low-temperature engine circulating water through the heat generated during the combustion of the mixed fuel gas to increase the temperature of the low-temperature engine circulating water to generate high-temperature engine circulating water. The heating device then outputs the high-temperature engine circulating water to the methanol engine, thereby heating the methanol engine through the heat carried by the high-temperature engine circulating water to increase the temperature of the methanol engine.

[0101] When the heating device needs to heat the methanol engine, it first obtains methanol fuel from the methanol fuel supply system within the methanol engine and sprays the methanol fuel through a high-pressure atomization process to fully mix the methanol fuel with air to form a mixed fuel gas. The heating device then ignites the mixed fuel gas within the device, causing it to stably burn and release heat. The heating device then controls the pipeline between itself and the methanol engine to allow low-temperature engine circulating water within the methanol engine to flow into the heating device through the pipeline. Heat generated within the heating device is then converted into higher-temperature engine circulating water. The heating device then controls the pipeline to allow the high-temperature engine circulating water to flow back into the methanol engine through the pipeline, thereby raising the temperature of the methanol engine using the heat carried by the high-temperature engine circulating water. In this way, the methanol engine can raise its own temperature through the heat-carrying engine circulating water, allowing the injected methanol fuel to fully volatilize, allowing the methanol engine to be started in a low-temperature environment simply by injecting methanol fuel.

[0102] In one embodiment, the heating device further comprises: a methanol delivery unit and an air intake unit, wherein the methanol delivery unit is connected to the methanol ignition unit, and the methanol ignition unit is connected to the air intake unit;

[0103] The step of "generating a mixed fuel gas corresponding to the methanol fuel in the methanol ignition unit" in the above step S201 may specifically include:

[0104] Step S2011: obtaining a first control signal;

[0105] Step S2012: controlling the methanol delivery unit and the air intake unit based on the first control signal to generate a mixed fuel gas corresponding to the methanol fuel in the methanol ignition unit;

[0106] It should be noted that, please refer to Figure 2, which is a structural connection diagram of the heating equipment involved in an embodiment of the methanol engine starting method of the present application. As shown in Figure 2, the heating equipment is provided with a heat exchange shell 13, and a heat exchange unit 30, an air intake unit 32 and a methanol ignition unit 31 are provided inside the heat exchange shell 13. The heat exchange unit 30 and the air intake unit 32 are respectively connected to the methanol ignition unit 31, and the methanol ignition unit 31 is connected to the methanol delivery unit 33 through a pipeline.

[0107] Please refer to Figure 3, which is a detailed structural diagram of the heating equipment involved in an embodiment of the methanol engine starting method of the present application. As shown in Figure 3, the methanol delivery unit is equipped with: a methanol tank 1, an electric infusion pump 2 and a methanol filter 3, wherein the methanol 1 is connected to the electric infusion pump 2 through a pipeline, the electric infusion pump 2 is connected to the methanol filter 3 through a pipeline, and the methanol filter 3 is connected to the methanol ignition unit through a pipeline; similarly, as shown in Figure 3, the air intake unit includes: an air intake filter 22 and an air intake fan 23, the air intake filter 22 is arranged at the air inlet on the heat exchange shell of the heating equipment, and is connected to the air intake fan 23, and the air intake fan 23 can directly input the acquired air into the methanol ignition unit by rotating the fan to make the air flow.

[0108] In this embodiment, when the heating device needs to heat the methanol engine, it first controls the methanol fuel supply system in the methanol engine through the controller 4, so that the methanol fuel supply system inputs the methanol fuel into the methanol delivery unit configured by itself, and the heating device then obtains a first control signal. Thereafter, the heating device controls the methanol delivery unit based on the first control signal, so that the methanol delivery unit inputs the methanol fuel into the methanol ignition unit configured by the heating device itself. At the same time, the heating device controls the intake system configured by itself based on the first control signal, so that the intake system collects air and inputs the air into the methanol ignition unit, so that the methanol fuel is fully atomized and evenly mixed with the air to form a mixed fuel gas. The heating device then controls the methanol ignition unit to ignite the mixed fuel gas, so that the mixed fuel gas can burn stably in the heating device and generate heat.

[0109] When the heating device needs to heat the methanol engine, the heating device first controls the methanol fuel supply system in the methanol engine, so that the methanol fuel supply system inputs the methanol fuel into the methanol tank 1 in the methanol delivery unit in the heating device through the pipeline between the heating device and the methanol engine. The heating device then obtains a first control signal and controls the methanol delivery unit based on the first control signal, so that the methanol delivery unit inputs the methanol fuel contained in the methanol tank 1 into the electric infusion pump 2 in the methanol delivery unit, and inputs the methanol fuel into the methanol filter 3 in the methanol delivery unit through the electric infusion pump 2. The methanol fuel filtered by the methanol filter 3 then enters the methanol ignition unit through the pipeline between the methanol delivery unit and the methanol ignition unit. Simultaneously, the heating device controls the operation of the intake fan 23 within the intake unit based on the first control signal, allowing air to enter the methanol ignition unit through the intake filter 22 and the intake fan 23 within the intake unit. This allows the methanol fuel to fully mix with the air, forming a mixed fuel gas within the methanol ignition unit. The heating device then controls the multiple ignition electrodes within the methanol ignition unit to ignite the mixed fuel gas, causing it to stably burn within the heating device and generate heat. In this way, the heating device can stably obtain methanol fuel, fully atomize the methanol fuel, and mix it with the obtained air to generate a mixed fuel gas, which in turn fully burns and provides sufficient heat.

[0110] It should be noted that in this embodiment, the number of the multiple ignition electrodes should be greater than or equal to two. As shown in the figure, when the number of ignition electrodes is four, the methanol ignition unit can simultaneously ignite the mixed fuel gas through ignition electrodes 7-1 to 7-4. In this way, by configuring multiple ignition electrodes, methanol fuel can be ignited more efficiently.

[0111] Furthermore, in one embodiment, the methanol tank 1 is equipped with a methanol tank housing 26, a liquid level gauge 27, and an oil suction filter 28. The liquid level gauge 27 and the oil suction filter 28 are mounted on the methanol tank housing 26. The liquid level gauge 27 is configured with an alarm function. This allows the methanol tank 1 to store methanol fuel and detect the amount of methanol fuel in the tank 1 through the liquid level gauge 27, thereby sounding an alarm when the methanol fuel is insufficient. Furthermore, during the process of delivering methanol fuel from the methanol tank 1 to the electric infusion pump, the filter 28 prevents impurities from entering the methanol fuel, thereby improving the combustion efficiency of the methanol fuel. Furthermore, an oil filling port 29 is configured on the methanol tank housing 1. Methanol fuel can be injected into the tank 1 through the oil filling port 29 to ensure the methanol fuel content within the tank 1.

[0112] In one embodiment, the methanol ignition unit includes: a methanol injector oil rail, an electronically controlled methanol injector, and a pre-combustion chamber, wherein the methanol injector oil rail is connected to the electronically controlled methanol injector, and the electronically controlled methanol injector is connected to the pre-combustion chamber;

[0113] The above step S2012 may specifically include:

[0114] Step S20121: controlling the methanol delivery unit to input the methanol fuel into the methanol injector rail based on the first control signal, and controlling the air intake unit to input air into the pre-combustion chamber based on the first control signal;

[0115] Step S20122: obtaining a second control signal, and controlling the electronically controlled methanol injector to inject the methanol fuel into the pre-combustion chamber based on the second control signal, so as to generate a mixed fuel gas corresponding to the methanol fuel in the pre-combustion chamber through the methanol fuel and the air;

[0116] In this embodiment, when the heating device needs to ignite methanol fuel, the heating device controls the methanol delivery unit based on the obtained first control signal to enable the methanol delivery unit to input the methanol fuel into the methanol injector oil rail in the methanol ignition unit. At the same time, the heating device controls the air intake unit based on the obtained first control signal to enable the air intake unit to deliver air into the methanol ignition unit. Thereafter, the heating device obtains a second control signal and controls the methanol ignition unit based on the second control signal to enable the methanol injector oil rail in the methanol ignition unit to build up pressure for the input methanol fuel. The heating device further controls the methanol ignition unit based on the second control signal to enable the methanol injector oil rail to perform high-pressure atomization injection of the methanol fuel in a high-pressure state through the electronically controlled methanol injector connected to itself, thereby allowing the methanol fuel to fully volatilize in the pre-combustion chamber and mix with the air in the pre-combustion chamber to generate a mixed fuel gas.

[0117] When the heating device needs to ignite methanol fuel, the heating device first controls the methanol delivery unit based on the obtained first control signal, so that the methanol delivery unit inputs the methanol fuel contained in the methanol tank 1 into the electric infusion pump 2 in the methanol delivery unit, and inputs the methanol fuel into the methanol filter 3 in the methanol delivery unit through the electric infusion pump 2, and then allows the methanol fuel filtered by the methanol filter 3 to enter the methanol ignition unit through the pipeline between the methanol delivery unit and the methanol ignition unit. At the same time, the heating device controls the operation of the intake fan 23 in the air intake unit based on the first control signal, so that air enters the methanol ignition unit through the intake filter 22 and the intake fan 23 in the air intake unit. Afterwards, the heating device determines the required methanol injection amount based on the heat to be generated, and generates a second control signal based on the methanol injection amount, so as to control the methanol ignition unit through the second control signal, so that the methanol in the methanol ignition unit The alcohol injector oil rail 5 establishes a pressure value corresponding to the methanol injection amount for the methanol fuel input by the methanol tank 1. The heating device controls the electronically controlled methanol injector 6 connected to the methanol injector oil rail 5 based on the second control signal, so that the electronically controlled methanol injector 6 continuously injects methanol fuel in a high-pressure state through a single injection hole as shown in Figure 4 or multiple injection holes as shown in Figure 5 configured by itself, and then allows the methanol fuel to enter the precombustion chamber 9 connected to the electronically controlled methanol injector 6 in an atomized form, so that the methanol spray 88 formed after the methanol fuel is atomized is mixed with air in the precombustion chamber 9 to form a mixed fuel gas. Finally, the heating device controls the methanol ignition unit so that the four ignition electrodes 7~1 to 7~4 as shown in Figure 6 configured on the precombustion chamber 9 generate sparks at the same time, thereby igniting the mixed fuel gas and allowing the mixed fuel gas to burn stably in the precombustion chamber 9, and then allowing the heat generated by the mixed fuel gas to enter the main combustion chamber 10. In this way, the heating equipment allows the methanol fuel to enter a high-pressure state through the methanol injector oil rail 5, and accurately injects the methanol fuel according to the required amount of methanol through the electronically controlled methanol injector 6, which can better atomize the methanol fuel and form a mixed fuel gas in the pre-combustion chamber, thereby making the methanol fuel burn more stably and providing heat.

[0118] It should be noted that, in this embodiment and another embodiment, as shown in Figure 3, the methanol ignition unit is also configured with an exhaust channel 14, a muffler 15 and a drainage channel 21. The exhaust channel 14 and the drainage channel 21 are both arranged on the heat exchange shell 13 and connected to the main combustion chamber 10. The drainage channel 21 is provided with a muffler 15. In this way, when the methanol spray 8 is burning, the exhaust gas generated in the main combustion chamber 10 can be discharged from the pipe through the exhaust channel 14. At the same time, the water vapor generated by the methanol spray 8 during the combustion process will form condensed water after condensation. The condensed water can be discharged from the pipe through the drainage channel 21 to avoid the condensed water remaining in the pipe from freezing in a low temperature environment. At the same time, a muffler 15 is provided at the tail end of the drainage pipe 21. The muffler 15 can reduce the noise generated by the heating equipment when igniting the methanol spray 8, thereby further improving the passenger's riding experience.

[0119] In one embodiment, the heating device further comprises: a heat exchange unit, the heat exchange unit being connected to the methanol ignition unit;

[0120] The step of "obtaining low-temperature engine circulating water in the methanol engine" in the above step S202 may specifically include:

[0121] Step S2021: obtaining a third control signal;

[0122] Step S2022: controlling the heat exchange unit based on the third control signal so that the low-temperature engine circulating water in the methanol engine enters the heat exchange unit;

[0123] In this embodiment, after successfully igniting the methanol fuel and releasing heat, the heating device also needs to obtain a third control signal for controlling a heat exchange unit configured within the heating device. The heating device then controls the heat exchange unit based on the third control signal to allow low-temperature engine circulating water in the methanol engine to flow through a pipe into the heat exchange unit. The heating device then generates a fourth control signal and controls the electronic water pump based on the fourth control signal to allow the electronic water pump to deliver the low-temperature engine circulating water at the electronic water pump inlet to a heat exchange medium inlet connected to the heating device. This causes the low-temperature engine circulating water to flow through the heat exchange medium inlet into the heat exchange medium channel. Within the heat exchange medium channel, the low-temperature engine circulating water absorbs heat from the main combustion chamber through heat exchange fins configured on the main combustion chamber housing, thereby increasing its own temperature to become higher-temperature engine circulating water. Finally, the heating device again controls the heat exchange unit based on the third control signal to allow the high-temperature engine circulating water to flow back into the methanol engine through a pipe when it reaches the heat exchange medium outlet connected to the heat exchange medium channel, thereby increasing the temperature of the methanol engine using the heat it carries.

[0124] As shown in FIG3 , when the heating device successfully ignites the methanol fuel and generates heat in the main combustion chamber 10, the main combustion chamber 10 can transfer the heat contained in itself to the heat exchange medium channel 11 in the heat exchange unit on the other side of the main combustion chamber shell 12 through the heat exchange plate 16 configured on its own main combustion chamber shell 12. At this time, the heating device obtains a third control signal for controlling the heat exchange unit, and controls the heat exchange unit based on the third control signal, so that the low-temperature engine circulating water in the methanol engine in a low-temperature state can flow through the pipeline into the electronic water pump water inlet 20 configured in the heat exchange unit, and the electronic water pump 19 connected to the electronic water pump water inlet 20 can pump the electronic water pump water inlet. The low-temperature engine circulating water in the outlet 20 is input to the heat exchange medium inlet 17 connected to the outlet 20. The low-temperature engine circulating water then flows into the heat exchange medium channel 11 in the heat exchange unit through the heat exchange medium inlet 17, and obtains heat in the main combustion chamber 10 through the heat exchange medium channel 11, thereby becoming high-temperature engine circulating water with a higher temperature. Afterwards, the high-temperature engine circulating water flows through the heat exchange medium channel 11 into the heat exchange medium outlet 18 connected to the heat exchange medium channel 11. At this time, the heating device further sets the heat exchange unit according to the third control signal to allow the high-temperature engine circulating water to flow back to the methanol engine through the pipeline, thereby heating the methanol engine. In this way, the heating device can smoothly transfer the heat generated in the main combustion chamber to the engine circulating water, thereby allowing the heat-carrying engine circulating water to return to the methanol engine and heat the methanol engine.

[0125] Step S30: When the second engine water temperature is greater than or equal to a second temperature threshold, controlling the methanol engine to inject methanol fuel to complete startup, wherein the second temperature threshold is greater than the first temperature threshold;

[0126] In this embodiment, the heating device obtains a second temperature threshold value preset by a technician that is higher than the first temperature threshold value, and compares the detected second engine water temperature with the second temperature threshold value to determine whether the second engine water temperature is greater than or equal to the second temperature threshold value. If the heating device determines that the second engine water temperature is greater than or equal to the second temperature threshold value, it is determined that the methanol engine meets the starting conditions, and the heating device generates a fourth control signal, and controls the methanol engine to inject methanol fuel based on the fourth control signal to complete the start-up of the methanol engine.

[0127] After obtaining the second engine water temperature, the heating device obtains a second temperature threshold T2 preset by the technician that is higher than the first temperature threshold T1, and compares the second engine water temperature with the second temperature threshold T2 to obtain a second comparison result. Afterwards, if the heating device determines that the second comparison result is that the second engine water temperature is greater than or equal to the second temperature threshold T2, it is determined that under the temperature condition, the methanol fuel injected into the methanol engine has been able to evaporate normally, and the heating device thereby generates a fourth control signal and controls the methanol engine to inject methanol fuel based on the fourth control signal.

[0128] In this embodiment, when the methanol engine needs to be started in a low-temperature environment, the heating device first detects the methanol engine connected to itself to obtain a first engine water temperature of the methanol engine in an unstarted state, and determines whether the first engine water temperature is less than a first temperature threshold preset by the technician. Afterwards, if the heating device determines that the first engine water temperature is less than the first temperature threshold, it obtains methanol fuel and ignites the methanol fuel to generate heat. The heating device thus heats the methanol engine through the heat. At the same time, the heating device detects the methanol engine again to obtain a second engine water temperature of the methanol engine during the heating process. Finally, the heating device obtains a second temperature threshold that is higher than the first temperature threshold preset by the technician, and compares the detected second engine water temperature with the second temperature threshold to determine whether the second engine water temperature is greater than or equal to the second temperature threshold. If the heating device determines that the second engine water temperature is greater than or equal to the second temperature threshold, it determines that the methanol engine meets the starting conditions. The heating device then generates a fourth control signal and controls the methanol engine to inject methanol fuel based on the fourth control signal to complete the starting of the methanol engine.

[0129] In this way, the present application solves the technical problem in the related technology that technicians need to spend a lot of money to add an additional gasoline fuel supply system in the methanol engine to ensure that when the methanol engine is started in a low-temperature environment, it can complete the start-up by first injecting part of the gasoline fuel. That is, the present application ignites the methanol fuel through a heating device to generate heat, and uses the heat to heat the engine circulating water of the methanol engine to increase the temperature of the methanol engine, so that when the methanol fuel is injected into the methanol engine in a low-temperature environment, the methanol fuel can also be fully volatilized and form a mixed fuel gas, thereby allowing the methanol engine to complete the start-up in a low-temperature environment relying solely on methanol fuel.

[0130] Based on the first embodiment of the method for starting a methanol engine of the present application, a second embodiment of the method for starting a methanol engine of the present application is proposed herein.

[0131] In one embodiment, after the above step S30, the methanol engine starting method of the present application may further include the following steps:

[0132] Step A10: Detecting the methanol engine to obtain a third engine water temperature of the methanol engine, and determining whether the third engine water temperature is greater than or equal to a third temperature threshold;

[0133] Step A20: If it is determined that the third engine water temperature is greater than or equal to the third temperature threshold, stopping heating the methanol engine, wherein the third temperature threshold is greater than the second temperature threshold;

[0134] In this embodiment, after the methanol engine is successfully started, the heating device also detects the methanol engine again to obtain the third engine water temperature corresponding to the methanol engine in the starting state. At the same time, the heating device obtains a third temperature threshold preset by the technician that is higher than the second temperature threshold, and compares the third engine water temperature with the third temperature threshold to determine whether the third engine water temperature is greater than or equal to the third temperature threshold. Afterwards, if the heating device determines that the third engine water temperature is greater than or equal to the third temperature threshold, it determines that the methanol engine has completed the preheating work, thereby stopping heating the methanol engine to allow the methanol engine to run alone.

[0135] After the methanol engine is successfully started, the heating device calls the above-mentioned temperature sensor to detect the methanol engine again to obtain the third engine water temperature when the methanol engine completes the startup operation. At the same time, the heating device obtains the third temperature threshold T3 preset by the technician, which is higher than the second temperature threshold T2, and compares the third engine water temperature with the third temperature threshold T3 to determine whether the third engine water temperature is greater than or equal to the third temperature threshold T3. Afterwards, if the heating device determines that the third engine water temperature is greater than or equal to the third temperature threshold T3, it is determined that the methanol engine has completed preheating, and that continuing to heat the methanol engine will cause the methanol engine to overheat, thereby posing a certain operational risk. The heating device then generates a fifth control for stopping heating the methanol engine. The heating device receives a fifth control signal and, based on the fifth control signal, sequentially controls its own configured methanol delivery unit, methanol ignition unit, and air intake unit, causing the electrically controlled methanol injector 6 in the methanol ignition unit to stop injecting methanol fuel and the multiple ignition electrodes 7-1 to 7-4 to stop igniting, thereby ensuring that the methanol fuel in the precombustion chamber 9 stops burning. Simultaneously, the heating device controls the electric infusion pump 2 in the methanol delivery unit and the electronic water pump 19 in the heat exchange unit based on the fifth control signal, causing them to stop operating and thereby stopping the delivery of methanol fuel and engine circulating water to the heating device. Finally, the heating device controls the intake fan 23 in the air intake unit based on the fifth control signal, causing it to stop rotating and thereby stopping the supply of air to the precombustion chamber 9. In this way, the heating device can promptly detect the operating temperature of the methanol engine and ensure that heating the methanol engine stops when the operating temperature reaches a preset value, thereby ensuring that the methanol engine does not overheat and create risks during operation.

[0136] Based on the first embodiment and / or second embodiment of the method for starting a methanol engine of the present application, a third embodiment of the method for starting a methanol engine of the present application is proposed herein.

[0137] In one embodiment, after the above step S30, the methanol engine starting method of the present application may further include the following steps:

[0138] Step B10: testing the methanol engine to obtain a real-time methanol concentration value of the methanol engine, and determining whether the real-time methanol concentration value is greater than or equal to a methanol concentration threshold;

[0139] Step B20: If it is determined that the real-time methanol concentration value is greater than or equal to the methanol concentration threshold, a preset reminder message is output and heating of the methanol engine is stopped;

[0140] In this embodiment, after the methanol engine is successfully started, the heating device also detects itself to obtain the real-time methanol concentration value contained in it. At the same time, the heating device obtains the methanol concentration threshold preset by the technician, and compares the real-time methanol concentration value with the methanol concentration threshold to determine whether the real-time methanol concentration value is greater than or equal to the methanol concentration threshold. Afterwards, if the heating device determines that the real-time methanol concentration value is greater than or equal to the methanol concentration threshold, it obtains the preset reminder information and inputs the reminder information into the vehicle system connected to itself. The vehicle system displays the reminder information to the user through its own configured display device. At the same time, the heating device stops heating the methanol engine.

[0141] After the methanol engine is successfully started, the heating device can also detect its own methanol concentration using its own methanol vapor concentration sensor 24 to obtain its own real-time methanol concentration value. Simultaneously, the heating device obtains a methanol concentration threshold preset by a technician and compares the real-time methanol concentration value with the threshold to determine whether it is greater than or equal to the threshold. If the heating device determines that the real-time methanol concentration value is greater than or equal to the threshold, it determines that it faces a flash explosion risk and generates the aforementioned fifth control signal. Based on this fifth control signal, the heating device sequentially controls its own methanol delivery unit, methanol ignition unit, and air intake unit to stop heating the methanol engine. Simultaneously, the heating device obtains a reminder message preset by the technician and sends it to the vehicle-mounted system of the new energy vehicle in which it is installed. The vehicle-mounted system then displays the reminder message to the user via its own display device. In this way, the heating device can also detect its own methanol vapor concentration and promptly stop heating the methanol engine if it determines that the methanol vapor concentration is high, further improving safety.

[0142] Based on the above-mentioned embodiments of the method for starting a methanol engine of the present application, a preferred embodiment of the method for starting a methanol engine of the present application is proposed here.

[0143] Please refer to FIG7 , which is a flow chart of a preferred embodiment of the method for starting a methanol engine of the present application. As shown in FIG7 , in this embodiment, when the methanol engine needs to be started in a low-temperature environment, the heating device can first perform a system self-check to complete the start-up preparation. After that, the heating device calls the temperature sensor configured by itself to detect the methanol engine to obtain the first engine water temperature of the methanol engine. When the heating device determines that the first engine water temperature is less than the preset engine water temperature threshold T1, the heating device controls the electronic water pump configured by itself to work so that the low-temperature engine circulating water in the methanol engine enters the heat sensor configured by itself. The exchange unit and the heating device further control the operation of the fan configured therein to provide air to the main combustion chamber, and control the operation of the methanol ignition unit, thereby operating the electric infusion pump to input methanol fuel into the methanol ignition unit, and operating the methanol injector to inject methanol fuel into the main combustion chamber, so that the methanol fuel is mixed with air in the main combustion chamber to form a mixed fuel gas, and then ignite the mixed fuel gas to generate heat, and allow the heat to enter the heat exchange unit through the heat exchange fins configured on the main combustion chamber to heat the low-temperature engine circulating water to generate high-temperature engine circulating water, and then heat the methanol engine through the high-temperature engine circulating water;

[0144] Afterwards, during the process of heating the methanol engine, the heating device calls the temperature sensor to detect the methanol engine again to obtain the second engine water temperature of the methanol engine, and when the second engine water temperature reaches the preset engine water temperature threshold T2, the heating device controls the methanol engine to inject methanol fuel to complete the startup. At the same time, the heating device detects the methanol engine to obtain the third engine water temperature of the methanol engine, and when the third engine water temperature reaches the preset engine water temperature threshold T3, the heating device stops heating the methanol engine and completes the power-off shutdown operation.

[0145] In addition, to achieve the above-mentioned objectives, the present application further provides a methanol engine starting device, which is applied to a heating device. The heating device heats the methanol engine connected to the heating device by igniting methanol fuel. Please refer to FIG8 , which is a schematic diagram of the functional modules involved in an embodiment of the methanol engine starting device of the present application. As shown in FIG8 , the device includes:

[0146] a first detection module 10, detecting the methanol engine to obtain a first engine water temperature of the methanol engine, and determining whether the first engine water temperature is less than a first temperature threshold;

[0147] a second detection module 20, configured to heat the methanol engine and detect the methanol engine to obtain a second engine water temperature of the methanol engine if it is determined that the first engine water temperature is less than the first temperature threshold;

[0148] The engine starting module 30 is used to control the methanol engine to inject methanol fuel to complete starting when the second engine water temperature is greater than or equal to a second temperature threshold, wherein the second temperature threshold is greater than the first temperature threshold.

[0149] The heating device includes: a methanol ignition unit, a second detection module 20, including:

[0150] A methanol acquisition unit, configured to acquire methanol fuel and generate a mixed fuel gas corresponding to the methanol fuel in the methanol ignition unit;

[0151] The engine heating unit is used to obtain low-temperature engine circulating water in the methanol engine and heat the methanol engine by using the heat generated by the mixed fuel gas and the low-temperature engine circulating water.

[0152] The heating device further includes: a methanol delivery unit and an air intake unit, wherein the methanol delivery unit is connected to the methanol ignition unit, and the methanol ignition unit is connected to the air intake unit; and a methanol acquisition unit including:

[0153] A first signal acquisition subunit, configured to acquire a first control signal;

[0154] The first control subunit is configured to control the methanol delivery unit and the air intake unit based on the first control signal, so as to generate a mixed fuel gas corresponding to the methanol fuel in the methanol ignition unit.

[0155] The methanol ignition unit includes: a methanol injector oil rail, an electronically controlled methanol injector, and a pre-combustion chamber, wherein the methanol injector oil rail is connected to the electronically controlled methanol injector, and the electronically controlled methanol injector is connected to the pre-combustion chamber. The methanol acquisition unit also includes:

[0156] a second control subunit, configured to control the methanol delivery unit to input the methanol fuel to the methanol injector rail based on the first control signal, and to control the air intake unit to input air to the pre-combustion chamber based on the first control signal;

[0157] The second signal acquisition subunit is used to obtain a second control signal, and based on the second control signal, control the electronically controlled methanol injector to inject the methanol fuel into the pre-combustion chamber, so as to generate a mixed fuel gas corresponding to the methanol fuel in the pre-combustion chamber through the methanol fuel and the air.

[0158] The heating device further includes: a heat exchange unit, the heat exchange unit being connected to the methanol ignition unit; and an engine heating unit, comprising:

[0159] A third signal acquisition subunit, configured to acquire a third control signal;

[0160] The third control subunit is configured to control the heat exchange unit based on the third control signal so as to allow the low-temperature engine circulating water in the methanol engine to enter the heat exchange unit.

[0161] The engine starting module 30 includes:

[0162] a third detection unit, configured to detect the methanol engine to obtain a third engine water temperature of the methanol engine, and determine whether the third engine water temperature is greater than or equal to a third temperature threshold;

[0163] The first shutdown unit is used to stop heating the methanol engine if it is determined that the third engine water temperature is greater than or equal to the third temperature threshold, wherein the third temperature threshold is greater than the second temperature threshold.

[0164] The engine starting module 30 further includes:

[0165] a fourth detection unit, configured to detect the methanol engine to obtain a real-time methanol concentration value of the methanol engine, and determine whether the real-time methanol concentration value is greater than or equal to a methanol concentration threshold;

[0166] The second shutdown unit is used to output a preset reminder message and stop heating the methanol engine if it is determined that the real-time methanol concentration value is greater than or equal to the methanol concentration threshold.

[0167] In addition, the present application also provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the methanol engine starting method as described in any of the above embodiments are implemented.

[0168] The specific embodiments of the computer-readable storage medium of the present invention are basically the same as the embodiments of the methanol engine starting method described above, and will not be described in detail here.

[0169] In addition, to achieve the above-mentioned purpose, the present application also provides a heating device, which includes: a heat exchange shell, a methanol delivery unit, a methanol ignition unit, a heat exchange unit and an air intake unit; the heat exchange unit and the air intake unit are configured on the heat exchange shell, and the heat exchange unit and the air intake unit are respectively connected to the methanol ignition unit; the methanol ignition unit is connected to the methanol delivery unit through a pipeline to ignite the methanol fuel delivered by the methanol delivery unit.

[0170] In this way, the present application solves the technical problem in the related technology that technicians need to spend a lot of money to add an additional gasoline fuel supply system in the methanol engine to ensure that when the methanol engine is started in a low-temperature environment, it can complete the start-up by first injecting part of the gasoline fuel. That is, the present application ignites the methanol fuel by the heating equipment, and then increases the temperature of the methanol engine based on the heat generated by the methanol fuel during the combustion process, so that the methanol fuel injected by the methanol engine in the low-temperature environment can be completely volatilized, thereby allowing the methanol engine to complete the start-up work in a low-temperature environment by relying solely on methanol fuel.

[0171] Based on the overall concept of the technical solution of the present application described above, an embodiment of the heating device provided by the present application is proposed.

[0172] Referring to FIG5 , the heating device provided in this application includes:

[0173] Heat exchange shell, methanol delivery unit, methanol ignition unit, heat exchange unit and air intake unit;

[0174] The heat exchange unit, the air intake unit and the methanol ignition unit are disposed in the heat exchange shell, and the methanol ignition unit is connected to the heat exchange unit and the air intake unit respectively;

[0175] The methanol ignition unit is connected to the methanol delivery unit to ignite the methanol fuel delivered by the methanol delivery unit.

[0176] In this embodiment, a heat exchange shell 13 is provided on the heating device, and a heat exchange unit 30, an air intake unit 32 and a methanol ignition unit 31 are provided inside the heat exchange shell 13. The heat exchange unit 30 and the air intake unit 32 are respectively connected to the methanol ignition unit 31 through the configured pipes, and the methanol ignition unit 31 is connected to the methanol delivery unit 33 through the pipe. In this way, the methanol delivery unit 33 can input methanol fuel into the methanol ignition unit 31 through the pipe. At the same time, the air intake unit 32 absorbs air and delivers the air to the methanol ignition unit 31, so that the methanol ignition unit 31 ignites the methanol fuel, thereby causing the methanol fuel to burn and generate heat. Afterwards, the heat exchange unit 30 obtains the low-temperature engine circulating cooling water of the methanol engine, and causes the low-temperature engine circulating cooling water to complete a heat exchange operation to increase the temperature of the engine circulating cooling water to obtain high-temperature engine circulating cooling water, and then the temperature of the methanol engine is increased by the high-temperature engine circulating cooling water, so that the methanol engine can normally inject methanol fuel and complete startup.

[0177] In some feasible embodiments, the methanol ignition unit includes: a methanol injector rail, a methanol injector, an ignition electrode, a pre-combustion chamber, and a main combustion chamber;

[0178] The main combustion chamber is connected to the heat exchange unit, the main combustion chamber includes a pre-combustion chamber shell, the pre-combustion chamber shell forms the pre-combustion chamber in the main combustion chamber, and the pre-combustion chamber is connected to the air intake unit;

[0179] The ignition electrode is arranged in the pre-combustion chamber, the ignition electrode is connected to the methanol injector, the methanol injector is connected to the methanol injector oil rail, and the methanol injector oil rail is connected to the methanol delivery unit;

[0180] The methanol injector is an electronically controlled methanol injector or a mechanical methanol injector.

[0181] In this embodiment, please refer to Figure 6. The methanol ignition unit includes: a methanol injector oil rail 5, an electronically controlled methanol injector 6, an ignition electrode 7, a pre-combustion chamber 9 and a main combustion chamber 10. The main combustion chamber 10 is connected to the heat exchange unit. The main combustion chamber 10 includes a pre-combustion chamber shell. The pre-combustion chamber shell forms a pre-combustion chamber 9 in the main combustion chamber 10. A plurality of ignition electrodes 7 are arranged in the pre-combustion chamber 9. The ignition electrode 7 is connected to the electronically controlled methanol injector 6. The electronically controlled methanol injector 6 is connected to the methanol injector oil rail 5. The methanol injector oil rail 5 is connected to the methanol delivery unit through a pipeline.

[0182] The methanol delivery unit delivers the methanol fuel to the methanol injector oil rail 5 through a pipeline. The methanol injector oil rail 5 stores the methanol fuel and establishes oil pressure. The electronically controlled methanol injector 6 then controls the methanol fuel in a high-pressure state in the methanol injector oil rail 5 based on the received signal to be injected through the holes configured on the electronically controlled methanol injector 6, and the methanol fuel is uniformly mixed with the air in the pre-combustion chamber 9 based on the high-speed airflow sent in by the intake system to form a methanol spray 8. The ignition electrode 7 ignites the methanol spray 8 formed in the pre-combustion chamber 9, so that the methanol spray 8 can burn stably in the pre-combustion chamber 9 and dissipate heat to the main combustion chamber 10.

[0183] It should be noted that in this embodiment, the electronically controlled methanol injector 6 can be configured with a single injection hole or multiple injection holes. As shown in FIG4 , when there is a single injection hole, the methanol fuel can be atomized and injected using a single-hole high-efficiency atomization method. However, when there are multiple injection holes, as shown in FIG5 , the methanol fuel can be atomized and injected using a multi-hole high-efficiency atomization method.

[0184] In some feasible embodiments, the main combustion chamber further includes a heat exchange fin;

[0185] The heat exchange plate is connected to the heat exchange unit.

[0186] In this embodiment, the main combustion chamber includes a main combustion chamber shell 12 and a heat exchange plate 16, and the heat exchange plate 16 is arranged on the main combustion chamber shell 12, and the heat exchange plate 16 is connected to the heat exchange unit through the main combustion chamber shell 12; in this way, when the methanol spray 8 burns in the pre-combustion chamber 9, the heat generated in the pre-combustion chamber 9 enters the main combustion chamber 10, and the heat then passes through the main combustion chamber shell 12 through the heat exchange plate 16 in the main combustion chamber 10 and enters the heat exchange unit, so that the low-temperature engine circulating cooling water contained in the heat exchange unit obtains the heat generated by the methanol spray 8 during the combustion process.

[0187] In some feasible embodiments, the number of the ignition electrodes is greater than or equal to a preset number of electrodes, wherein the preset number of electrodes is greater than or equal to 2.

[0188] In this embodiment, referring to FIG6 , the number of ignition electrodes 7 is greater than or equal to two. Thus, the plurality of ignition electrodes 7 can easily ignite the methanol spray 8 contained in the pre-combustion chamber 9. For example, when the number of ignition electrodes 7 is four, the methanol spray 8 can be ignited simultaneously by ignition electrodes 7-1 to 7-4.

[0189] In some feasible embodiments, the methanol ignition unit further includes: an exhaust channel, a muffler, and a drainage channel;

[0190] The muffler is provided on the drainage passage, and the drainage passage and the exhaust passage are each connected to the main combustion chamber.

[0191] In this embodiment, the methanol ignition unit is further configured with an exhaust channel 14, a muffler 15, and a drainage channel 21. The exhaust channel 14 and the drainage channel 21 are both arranged on the heat exchange shell 13 and connected to the main combustion chamber 10. The muffler 15 is provided on the drainage channel 21. In this way, when the methanol spray 8 is burning, the exhaust gas generated in the main combustion chamber 10 can be discharged from the pipeline through the exhaust channel 14. At the same time, the water vapor generated by the methanol spray 8 during the combustion process will form condensed water after condensation. The condensed water can be discharged from the pipeline through the drainage channel 21 to prevent the condensed water remaining in the pipeline from freezing in a low-temperature environment. At the same time, a muffler 15 is provided at the tail end of the drainage pipe 21. The muffler 15 can reduce the noise generated by the heating equipment when igniting the methanol spray 8, further improving the riding experience of passengers.

[0192] In some feasible embodiments, the heat exchange unit includes: a heat exchange medium channel, a heat exchange medium inlet, a heat exchange medium outlet, an electronic water pump and an electronic water pump water inlet;

[0193] The heat exchange medium inlet is connected to the heat exchange medium channel, and the heat exchange medium channel is connected to the heat exchange medium outlet and the methanol ignition unit respectively;

[0194] The water inlet of the electronic water pump is connected to the electronic water pump, and the electronic water pump is connected to the heat exchange medium inlet.

[0195] In this embodiment, the heat exchange unit includes: a heat exchange medium channel 11, a heat exchange medium inlet 17, a heat exchange medium outlet 18, an electronic water pump 19 and an electronic water pump water inlet 20, wherein the electronic water pump water inlet 20 is connected to the heat exchange medium inlet 17 through the electronic water pump 19, and the heat exchange medium inlet 17 is connected to the heat exchange medium outlet 18 through the heat exchange medium channel 11. In this way, the low-temperature engine circulating cooling water in the methanol engine can enter the electronic water pump 19 through the electronic water pump water inlet 20, and the electronic water pump 19 inputs the low-temperature engine circulating cooling water into the heat exchange medium channel 11 through the heat exchange medium inlet 17. The low-temperature engine circulating cooling water obtains the heat generated in the main combustion chamber 10 through the above-mentioned heat exchange plate 16 in the heat exchange medium channel 11, thereby becoming high-temperature engine circulating cooling water. The high-temperature engine circulating cooling water then flows out through the heat exchange medium outlet 18 to return to the methanol engine to increase the temperature of the methanol engine.

[0196] In some feasible embodiments, the methanol delivery unit includes: a methanol tank, an electric infusion pump and a methanol filter;

[0197] The methanol tank is connected to the electric infusion pump, the electric infusion pump is connected to the methanol filter, and the methanol filter is connected to the methanol ignition unit.

[0198] In this embodiment, the methanol delivery unit includes: a methanol tank 1, an electric infusion pump 2 and a methanol filter 3, wherein the methanol tank 1 is connected to the methanol filter 3 through the electric infusion pump 2, and the methanol filter 3 is connected to the methanol injector oil rail 5 in the above-mentioned methanol ignition unit through a pipeline. In this way, the methanol tank 1 can input the methanol fuel stored internally into the electric infusion pump 2, and the electric infusion pump 2 then builds up pressure on the methanol fuel and inputs the methanol fuel into the methanol filter 3 based on the pressure. The methanol filter 3 then inputs the filtered methanol fuel into the methanol injector oil rail 5 through the pipeline, so that the methanol ignition unit ignites the methanol fuel.

[0199] The electric infusion pump 2 is provided with an oil overflow valve. When the pressure of the methanol fuel inside the electric infusion pump 2 is too high, the methanol fuel can be discharged to the outside through the oil overflow valve, thereby reducing the pressure inside the electric infusion pump 2.

[0200] In some feasible embodiments, the methanol tank includes: a methanol tank shell, a liquid level gauge and an oil absorption filter, and the liquid level gauge and the oil absorption filter are both configured on the methanol tank shell.

[0201] In this embodiment, the methanol tank 1 is provided with a methanol tank shell 26, a liquid level gauge 27 and an oil suction filter 28. The liquid level gauge 27 and the oil suction filter 28 are arranged on the methanol tank shell 26. At the same time, the liquid level gauge 27 is provided with an alarm function. In this way, methanol fuel can be stored in the methanol tank 1, and the methanol fuel reserves in the methanol tank 1 can be detected by the liquid level gauge 27, and then an alarm is issued when the methanol fuel reserves are insufficient. At the same time, in the process of the methanol tank 1 transporting methanol fuel to the electric infusion pump, the filter 28 can prevent impurities from being contained in the methanol fuel, so as to improve the combustion efficiency of the methanol fuel.

[0202] The methanol tank housing 1 is provided with an oil filling hole 29 , so that methanol fuel can be injected into the methanol tank 1 through the oil filling hole 29 to ensure the methanol fuel content in the methanol tank 1 .

[0203] In some feasible embodiments, the air intake unit includes: an air intake filter and an air intake fan, the air intake filter is connected to the air intake fan, and the air intake fan is connected to the methanol ignition unit.

[0204] In this embodiment, the air intake unit includes an air intake filter 22 and an air intake fan 23, and the air intake filter 22 and the air intake fan 23 are both arranged on the heat exchange shell 13 of the methanol ignition unit. In this way, when the methanol ignition unit needs to ignite methanol fuel, the air intake filter 22 can filter the inhaled air, thereby filtering out large particles of impurities contained in the air. At the same time, the air intake fan 23 can measure and control the air content delivered to the pre-combustion chamber 9 and the main combustion chamber 10, so as to better ensure that the methanol spray 8 in the main combustion chamber 10 and the pre-combustion chamber 9 can be completely burned.

[0205] In some feasible embodiments, the heating device is further equipped with a methanol vapor concentration sensor and a high temperature alarm sensor;

[0206] The methanol vapor concentration sensor and the high temperature alarm sensor are respectively arranged on the heat exchange shell, the methanol vapor concentration sensor is connected to the methanol ignition unit, and the high temperature alarm sensor is connected to the heat exchange unit.

[0207] Heat exchange housing 13 is also equipped with a methanol vapor concentration sensor 24 and a high-temperature alarm sensor 25. The methanol vapor concentration sensor 24 is connected to the methanol ignition unit, while the high-temperature alarm sensor 25 is connected to the heat exchange unit. This allows the methanol vapor concentration sensor 24 to detect the concentration of the methanol spray 8 within the heating device, generating an alarm when the concentration reaches a preset threshold, thereby preventing the risk of flash explosions within the heating device. Furthermore, the high-temperature alarm sensor 25 monitors the temperature within the heating device, further preventing the risk of dry burning of the methanol spray 8 during combustion.

[0208] In some feasible embodiments, the heating device is further equipped with a controller;

[0209] The controller is arranged in the heat exchange shell and is connected to the methanol ignition unit, the heat exchange unit, the methanol delivery unit and the air intake unit respectively.

[0210] In this embodiment, the heating device is further provided with a controller 4, which is arranged on the heat exchange housing 13, and the controller 4 is respectively connected to the electronically controlled methanol injector 6 in the methanol ignition unit, the ignition electrode 7, the electronic water pump 19 in the heat exchange unit, the electric infusion pump 2 in the methanol delivery unit, and the intake fan 23 in the intake unit. In this way, when the methanol engine needs to be heated, the controller 4 can control the electric infusion pump 2 to start to deliver methanol fuel from the methanol tank 1 to the electronically controlled methanol injector 6. At the same time, the controller 4 can control the intake fan 23 to rotate to deliver air to the pre-combustion chamber 9. The controller 4 can then control the electronically controlled methanol injector 6 to inject methanol fuel to form a methanol spray 8, and control the ignition electrode 7 to ignite the methanol spray 8 to generate heat in the main combustion chamber 10. The controller 4 can then control the electronic water pump 19 to turn on, so that the low-temperature engine circulating cooling water is input to the heat exchange medium inlet 17 through the electronic water pump 19 and enters the heat exchange medium channel 11, so that the low-temperature engine circulating cooling water obtains heat through the heat exchange medium channel 11 and becomes high-temperature engine circulating cooling water, and then the high-temperature engine circulating cooling water leaves the heat exchange unit through the heat exchange medium outlet 18 to heat the methanol engine.

[0211] The heating equipment provided in the present application includes: a heat exchange shell, a methanol delivery unit, a methanol ignition unit, a heat exchange unit and an air intake unit; the heat exchange unit, the air intake unit and the methanol ignition unit are arranged in the heat exchange shell, and the methanol ignition unit is respectively connected to the heat exchange unit and the air intake unit; the methanol ignition unit is connected to the methanol delivery unit to ignite the methanol fuel delivered by the methanol delivery unit.

[0212] That is, the heating device provided in the present application is configured by arranging a heat exchange unit, an air intake unit and a methanol ignition unit on a heat exchange shell, and connecting the heat exchange unit and the air intake unit to the methanol ignition unit respectively. At the same time, a methanol delivery unit is configured to be connected to the methanol ignition unit through a pipeline, so that the methanol delivery unit delivers methanol fuel to the methanol ignition unit through the pipeline, and the air intake unit delivers air to the methanol ignition unit, so that the methanol ignition unit can ignite the methanol fuel, causing the methanol fuel to burn and generate heat, and then allowing the engine circulating cooling water to obtain the heat generated when the methanol fuel is ignited through the heat exchange unit, and finally the engine circulating cooling water carries the heat to heat the methanol engine to increase the temperature of the methanol engine.

[0213] In this way, the present application solves the technical problem in the related art that requires technicians to spend a lot of money to add an additional gasoline fuel supply system to the methanol engine to ensure that the methanol engine can complete the startup by first injecting part of the gasoline fuel when starting in a low-temperature environment. That is, the present application ignites the methanol fuel by a heating device, and then increases the temperature of the methanol engine based on the heat generated by the methanol fuel during the combustion process, so that the methanol fuel injected into the methanol engine in a low-temperature environment can be completely volatilized, thereby enabling the methanol engine to complete the startup work in a low-temperature environment using only methanol fuel;

[0214] In addition, by preheating the engine circulating cooling water in the methanol engine, the engine circulating cooling water can also heat the lubricating oil in the methanol engine during operation, thereby improving the fluidity of the lubricating oil and the oiling capacity of the cylinder liner, thereby reducing the wear of the piston and cylinder liner at the start of the methanol engine and increasing the engine life.

[0215] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or system. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or system comprising the element.

[0216] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0217] The above are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method for starting a methanol engine, wherein: The methanol engine starting method is applied to a heating device, wherein the heating device heats a methanol engine connected to the heating device by igniting methanol fuel. The methanol engine starting method comprises the following steps: Detecting the methanol engine to obtain a first engine water temperature of the methanol engine, and determining whether the first engine water temperature is less than a first temperature threshold; If it is determined that the first engine water temperature is less than the first temperature threshold, heating the methanol engine and detecting the methanol engine to obtain a second engine water temperature of the methanol engine; When the second engine water temperature is greater than or equal to a second temperature threshold, the methanol engine is controlled to inject methanol fuel to complete starting, wherein the second temperature threshold is greater than the first temperature threshold.

2. The method for starting a methanol engine according to claim 1, wherein: The heating device comprises: a methanol ignition unit, and the step of heating the methanol engine comprises: Acquire methanol fuel, and generate a mixed fuel gas corresponding to the methanol fuel in the methanol ignition unit; Low-temperature engine circulating water in the methanol engine is obtained, and the methanol engine is heated by the heat generated by the mixed fuel gas and the low-temperature engine circulating water.

3. The method for starting a methanol engine according to claim 2, wherein: The heating device further comprises: a methanol delivery unit and an air intake unit, wherein the methanol delivery unit is connected to the methanol ignition unit, and the methanol ignition unit is connected to the air intake unit; The step of generating a mixed fuel gas corresponding to the methanol fuel in the methanol ignition unit comprises: Acquiring a first control signal; The methanol delivery unit and the air intake unit are controlled based on the first control signal to generate a mixed fuel gas corresponding to the methanol fuel in the methanol ignition unit.

4. The method for starting a methanol engine according to claim 3, wherein: The methanol ignition unit comprises: a methanol injector oil rail, an electronically controlled methanol injector and a pre-combustion chamber, wherein the methanol injector oil rail is connected to the electronically controlled methanol injector, and the electronically controlled methanol injector is connected to the pre-combustion chamber; The step of controlling the methanol delivery unit and the air intake unit based on the first control signal to generate a mixed fuel gas corresponding to the methanol fuel in the methanol ignition unit includes: Controlling the methanol delivery unit to input the methanol fuel to the methanol injector rail based on the first control signal, and controlling the air intake unit to input air to the pre-combustion chamber based on the first control signal; A second control signal is obtained, and based on the second control signal, the electronically controlled methanol injector is controlled to inject the methanol fuel into the pre-combustion chamber, so as to generate a mixed fuel gas corresponding to the methanol fuel in the pre-combustion chamber through the methanol fuel and the air.

5. The method for starting a methanol engine according to claim 2, wherein: The heating device further comprises: a heat exchange unit, the heat exchange unit being connected to the methanol ignition unit; The step of obtaining low-temperature engine circulating water in the methanol engine comprises: acquiring a third control signal; The heat exchange unit is controlled based on the third control signal so that low-temperature engine circulating water in the methanol engine enters the heat exchange unit.

6. The method for starting a methanol engine according to claim 1, wherein: After the step of controlling the methanol engine to inject methanol fuel to complete startup, the method further includes: detecting the methanol engine to obtain a third engine water temperature of the methanol engine, and determining whether the third engine water temperature is greater than or equal to a third temperature threshold; If it is determined that the third engine water temperature is greater than or equal to the third temperature threshold, heating of the methanol engine is stopped, wherein the third temperature threshold is greater than the second temperature threshold.

7. The method for starting a methanol engine according to claim 1, wherein: After the step of controlling the methanol engine to inject methanol fuel to complete startup, the method further includes: Detecting the methanol engine to obtain a real-time methanol concentration value of the methanol engine, and determining whether the real-time methanol concentration value is greater than or equal to a methanol concentration threshold; If it is determined that the real-time methanol concentration value is greater than or equal to the methanol concentration threshold, a preset reminder message is output and heating of the methanol engine is stopped.

8. A methanol engine starting device, wherein: The methanol engine starting device is applied to a heating device, and the heating device heats the methanol engine connected to the heating device by igniting methanol fuel. The device comprises: a first detection module, detecting the methanol engine to obtain a first engine water temperature of the methanol engine, and determining whether the first engine water temperature is less than a first temperature threshold; a second detection module, configured to heat the methanol engine and detect the methanol engine to obtain a second engine water temperature of the methanol engine if it is determined that the first engine water temperature is less than the first temperature threshold; The engine starting module is used to control the methanol engine to inject methanol fuel to complete starting when the second engine water temperature is greater than or equal to a second temperature threshold, wherein the second temperature threshold is greater than the first temperature threshold.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the methanol engine starting method according to any one of claims 1 to 7 are implemented.

10. A heating device, wherein: The heating device comprises: a heat exchange shell, a methanol delivery unit, a methanol ignition unit, a heat exchange unit and an air intake unit; The heat exchange unit, the air intake unit and the methanol ignition unit are arranged in the heat exchange shell, and the methanol ignition unit is connected to the heat exchange unit and the air intake unit respectively; The methanol ignition unit is connected to the methanol delivery unit to ignite the methanol fuel delivered by the methanol delivery unit.

11. The heating device according to claim 10, wherein: The methanol ignition unit comprises: a methanol injector rail, a methanol injector, an ignition electrode, a pre-combustion chamber and a main combustion chamber; The main combustion chamber is connected to the heat exchange unit, the main combustion chamber includes a pre-combustion chamber shell, the pre-combustion chamber shell forms the pre-combustion chamber in the main combustion chamber, and the pre-combustion chamber is connected to the air intake unit; The ignition electrode is arranged in the pre-combustion chamber, the ignition electrode is connected to the methanol injector, the methanol injector is connected to the methanol injector oil rail, and the methanol injector oil rail is connected to the methanol delivery unit; The methanol injector is an electronically controlled methanol injector or a mechanical methanol injector.

12. The heating device according to claim 11, wherein The main combustion chamber also includes heat exchange fins; The heat exchange plate is connected to the heat exchange unit.

13. The heating device according to claim 11, wherein The number of the ignition electrodes is greater than or equal to a preset number of electrodes, wherein the preset number of electrodes is greater than or equal to 2.

14. The heating device according to claim 11, wherein The methanol ignition unit further includes: an exhaust passage, a muffler and a drainage passage; The muffler is disposed on the drainage passage, and the drainage passage and the exhaust passage are each connected to the main combustion chamber.

15. The heating device according to claim 10, wherein: The heat exchange unit comprises: a heat exchange medium channel, a heat exchange medium inlet, a heat exchange medium outlet, an electronic water pump and an electronic water pump water inlet; The heat exchange medium inlet is connected to the heat exchange medium channel, and the heat exchange medium channel is connected to the heat exchange medium outlet and the methanol ignition unit respectively; The water inlet of the electronic water pump is connected to the electronic water pump, and the electronic water pump is connected to the heat exchange medium inlet.

16. The heating device according to claim 10, wherein The methanol delivery unit comprises: a methanol tank, an electric infusion pump and a methanol filter; The methanol tank is connected to the electric infusion pump, the electric infusion pump is connected to the methanol filter, and the methanol filter is connected to the methanol ignition unit.

17. The heating device according to claim 16, wherein The methanol tank comprises: a methanol tank shell, a liquid level gauge and an oil suction filter, and the liquid level gauge and the oil suction filter are both arranged on the methanol tank shell.

18. The heating device according to claim 10, wherein: The air intake unit comprises: an air intake filter and an air intake fan, the air intake filter is connected to the air intake fan, and the air intake fan is connected to the methanol ignition unit.

19. The heating device according to any one of claims 10 to 18, wherein: The heating device is also equipped with a methanol vapor concentration sensor and a high temperature alarm sensor; The methanol vapor concentration sensor and the high temperature alarm sensor are respectively arranged on the heat exchange shell, the methanol vapor concentration sensor is connected to the methanol ignition unit, and the high temperature alarm sensor is connected to the heat exchange unit.

20. The heating device according to any one of claims 10 to 19, wherein: The heating device is also equipped with a controller; The controller is disposed in the heat exchange shell and is connected to the methanol ignition unit, the heat exchange unit, the methanol delivery unit and the air intake unit respectively.

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