CN215486338U - Methanol engine heating system and vehicle - Google Patents
Methanol engine heating system and vehicle Download PDFInfo
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- CN215486338U CN215486338U CN202122424180.4U CN202122424180U CN215486338U CN 215486338 U CN215486338 U CN 215486338U CN 202122424180 U CN202122424180 U CN 202122424180U CN 215486338 U CN215486338 U CN 215486338U
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 414
- 238000010438 heat treatment Methods 0.000 title claims abstract description 110
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 77
- 238000001816 cooling Methods 0.000 claims description 37
- 239000000446 fuel Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a methanol engine heating system and a vehicle, wherein the methanol engine heating system comprises a methanol engine, a thermostat, a radiator, a three-way valve, a heating device and a controller, wherein an engine water jacket is arranged in the methanol engine, an accommodating space is formed between the engine water jacket and the methanol engine, and a circulating medium is arranged in the accommodating space; the thermostat is provided with a circulating medium inlet, a small circulating outlet and a large circulating outlet, the circulating medium inlet is connected with the first circulating port through a first pipeline, the small circulating outlet is connected with the second circulating port through a first port and a third port, and the large circulating outlet is connected with the second circulating port through a radiator; the second port is connected with the second circulating port through a heating device; the controller is connected with the three-way valve, and when the circulating medium is lower than the preset heating temperature, the first port and the second port are controlled to be communicated, so that the heating circulation of the methanol engine is realized. The technical scheme of the utility model can solve the problem of low-temperature starting of the methanol engine.
Description
Technical Field
The utility model relates to the technical field of new energy automobiles, in particular to a methanol engine heating system and a vehicle.
Background
In recent years, methanol fuel has attracted attention because of its advantages such as low cost, environmental friendliness, and abundant resources. Methanol engines, i.e., engines using methanol as a main fuel, have a problem that low-temperature starting is difficult because of high latent heat of vaporization of methanol and a large methanol injection amount.
At low temperatures, the start of a methanol engine needs to be carried out with gasoline, which needs to be filled with two fuels, most commonly M85, which is a mixed solution of 85% methanol and 15% gasoline. However, in this starting method, additional components such as a gasoline secondary tank are required, and the operation method is complicated.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a heating system of a methanol engine, and aims to solve the problem of low-temperature starting of the methanol engine.
In order to achieve the above object, the present invention provides a methanol engine heating system, comprising: methanol engine, temperature saver, radiator, three-way valve, heating device and controller, wherein:
an engine water jacket is arranged in the methanol engine, an accommodating space is formed between the engine water jacket and a cylinder body and a cylinder cover of the methanol engine, and a circulating medium is arranged in the accommodating space;
the thermostat is provided with a circulating medium inlet, a small circulating outlet and a large circulating outlet, the circulating medium inlet is connected with a first circulating port of the engine water jacket through a first pipeline, the small circulating outlet is connected with a second circulating port of the engine water jacket through a first port and a third port of the three-way valve, and the large circulating outlet is connected with the second circulating port through the radiator;
a second port of the three-way valve is connected with the second circulation port through the heating device;
and the controller is connected with the three-way valve and used for controlling the first port to be communicated with the second port when the circulating medium is lower than a preset heating temperature, and the third port is closed so that the heating device heats the circulating medium to realize the heating cycle of the methanol engine.
Optionally, the second port is connected to a second circulation port of the engine water jacket through a second pipeline, the second pipeline is provided with the heating device, the heating device includes an electronic water pump and a heater, and when the circulation medium is lower than a preset heating temperature, the controller controls the first port of the three-way valve to communicate with the second port, so that the circulation medium flows through the first circulation port, the first pipeline, a circulation medium inlet of the thermostat, the small circulation outlet, the first port, the second pipeline, the electronic water pump, the heater and the second circulation port, thereby implementing a heating cycle of the methanol engine.
Optionally, the fuel of the heater is methanol.
Optionally, the third port is communicated with the second circulation port through a third pipeline, and the methanol engine heating system further comprises a fourth pipeline for communicating the third pipeline with the second circulation port.
Optionally, a water pump is arranged on the fourth pipeline.
Optionally, when the circulating medium is lower than a preset small circulation temperature, the controller controls the first port and the third port to be communicated, and the second port is closed, so that the circulating medium flows through the first circulation port, the first pipeline, the circulating medium inlet of the thermostat, the small circulation outlet of the thermostat, the first port, the third pipeline, the water pump, the fourth pipeline, and the second circulation port, so as to realize small circulation of the cooling system of the methanol engine.
Optionally, the methanol engine heating system further comprises a fifth pipeline provided with the radiator, and the large circulation outlet is communicated with the second circulation port through the fifth pipeline and the fourth pipeline.
Optionally, when the circulating medium reaches a preset large circulation temperature, the controller controls the first port, the second port and the third port of the three-way valve to be closed, so that the circulating medium flows through the first circulation port, the first pipeline, the circulating medium inlet of the thermostat, the large circulation outlet of the thermostat, the fifth pipeline, the water pump, the fourth pipeline and the second circulation port, thereby realizing large circulation of a cooling system of the methanol engine.
Optionally, the methanol engine heating system further comprises an EGR water jacket located between the engine water jacket and the thermostat such that the circulating medium flows through the EGR water jacket.
The utility model also provides a vehicle comprising the methanol engine heating system.
According to one technical scheme of the utility model, the three-way valve is additionally arranged in the circulation path of the cooling system of the methanol engine 10, when the methanol engine needs heating assistance when being started at a low temperature, the three-way valve is controlled by the controller to disconnect the small circulation path of the cooling system of the engine, so that a circulating medium enters the heating device after passing through the thermostat and the three-way valve, and the heating device heats the circulating medium, so that the heating circulation of the methanol engine is realized. Therefore, the methanol engine is heated, the temperature in the cylinder is increased, the methanol fuel in the cylinder can be atomized normally, and the low-temperature start of the methanol engine is finished. On the one hand, compare in the mode with the help of supplementary start of petrol, this scheme does not need parts such as additional design petrol bellytank, and the implementation mode is loaded down with trivial details simpler. On the other hand, when the methanol engine is started at a low temperature and needs heating assistance, the three-way valve is controlled by the controller to introduce the circulating medium into the heating circulating path, when the heating assistance is not needed, the three-way valve is controlled by the controller to disconnect the heating circulating path, and the circulating medium enters the large circulation or the small circulation of the cooling system of the methanol engine.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a heating system of a methanol engine according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a heating cycle of the methanol engine heating system of FIG. 1;
FIG. 3 is a schematic diagram of a heating cycle path of the methanol engine heating system of FIG. 1;
FIG. 4 is a schematic diagram of a small circulation path of the cooling system of the methanol engine heating system of FIG. 1;
FIG. 5 is a schematic diagram of a large circulation path of a cooling system of the heating system of the methanol engine of FIG. 1.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, "and/or" in the whole text includes three schemes, taking a and/or B as an example, including a technical scheme, and a technical scheme that a and B meet simultaneously; in addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
In the development process of new energy automobiles, methanol fuel is gradually paid attention to due to the advantages of low cost, environmental friendliness, abundant resources and the like. Methanol engines, i.e., engines using methanol as a main fuel, have a problem that low-temperature starting is difficult because of high latent heat of vaporization of methanol and a large methanol injection amount. At low temperatures, the start of a methanol engine needs to be carried out with gasoline, which needs to be filled with two fuels, most commonly M85, which is a mixed solution of 85% methanol and 15% gasoline. However, in this starting method, additional components such as a gasoline secondary tank are required, and the operation method is complicated.
The engine cooling system has two modes of operation, namely a large circulation mode of the cooling system and a small circulation mode of the cooling system. The small circulation mode refers to a process that most of cooling water flows through the engine body to cool the engine without flowing through the water tank to dissipate heat. The large circulation mode refers to a process that cooling water flows out of the engine body, is completely cooled by the water tank, and then enters the engine body to cool the engine.
In view of the above, the present invention provides a methanol engine heating system, which enables a methanol engine to utilize a coolant circulating in the engine to raise a temperature in a cylinder, and the methanol engine can be directly started after the temperature is raised, without using gasoline for auxiliary starting.
Referring to fig. 1, in an embodiment of the present invention, the methanol engine heating system includes a methanol engine 10, a thermostat 30, a radiator 80, a three-way valve 40, a heating device (not shown), and a controller (not shown). An engine water jacket 20 is arranged in the methanol engine 10, an accommodating space is formed between the engine water jacket 20 and a cylinder body and a cylinder head of the methanol engine 10, and a circulating medium is arranged in the accommodating space. The flow of the circulating medium in the accommodating space may exchange heat with the methanol engine 10 to adjust the temperature of the methanol engine 10. The circulating medium refers to water, antifreeze or the like, and the type of the circulating medium is not limited herein.
The thermostat 30 is a valve that controls a flow path of the cooling fluid, and is an automatic temperature adjusting device. The thermostat 30 can automatically adjust the flow rate entering the radiator 80 according to the temperature of the circulating medium, and change the temperature range of the circulating medium to adjust the heat dissipation capacity of the cooling system and ensure that the engine works in a proper temperature range. The thermostat 30 is provided with a circulating medium inlet 31, a small-circulation outlet 32, and a large-circulation outlet 33, the circulating medium inlet 31 being connected to the first circulation port 21 of the engine water jacket 20 through a first pipe 100, the small-circulation outlet 32 being connected to the second circulation port 22 of the engine water jacket 20 through the first port 41 and the third port 43 of the three-way valve 40, and the large-circulation outlet 33 being connected to the second circulation port 22 through the radiator 80. The thermostat 30 is connected with the first circulation port 21 of the engine water jacket 20 through a circulation medium inlet 31 and a first pipeline 100, so that a circulation medium is introduced into the thermostat 30 from a containing space between the engine water jacket 20 and a cylinder body and a cylinder head of the methanol engine 10 and flows out from a small circulation outlet 32 or a large circulation outlet 33. In this way, the circulating medium enters different pipelines through the thermostat 30 to realize a large circulation, a small circulation, or a heating circulation of the cooling system of the methanol engine 10.
The second port 42 of the three-way valve 40 is connected to the second circulation port 22 through a heating device. Specifically, the three-way valve 40 is disposed at one end of the thermostat 30, i.e., at a side of the thermostat 30 away from the methanol engine 10, and includes a first port 41, a second port 42, and a third port 43, the first port 41 is connected to the small circulation outlet 32, and the second port 42 is connected to the second circulation port 22 of the engine water jacket 20 through a heating device, so as to implement a heating cycle of the methanol engine 10.
The controller is connected with the three-way valve 40 and is used for controlling the first port 41 to be communicated with the second port 42 and the third port 43 to be closed when the circulating medium is lower than the preset heating temperature, so that the heating device heats the circulating medium and the heating cycle of the methanol engine 10 is realized. Specifically, when the temperature of the circulating medium is lower than the preset heating temperature, at this time, the methanol engine 10 cannot be started at a low temperature due to too low temperature, the controller controls the first port 41 of the three-way valve 40 to be opened, the second port 42 to be opened, and the third port 43 to be closed, so that the first port 41 is communicated with the second port 42, the circulating medium flows through the first port 41 and the second port 42 and flows into the heating device, and the heating device heats the circulating medium, so that the heating cycle of the methanol engine 10 is realized, and the low-temperature start of the methanol engine 10 is realized. For example, the preset heating temperature may be 0 ℃, and of course, the preset heating temperature may be set according to specific environments and vehicle conditions, and is not limited herein.
After the methanol engine 10 works, the circulating medium flows through the accommodating space, the circulating medium absorbs heat generated by the work of the methanol engine 10, so that the temperature of the methanol engine 10 is reduced to the temperature required by the normal work, the heated circulating medium flows out of the accommodating space through the first circulating port 21, flows into the thermostat 30 through the first pipeline 100 and the circulating medium inlet 31, and then flows through the radiator 80 through the large circulating outlet 33 of the thermostat 30 to enter the second circulating port 22 of the engine water jacket 20, so that the large circulation of the cooling system of the methanol engine 10 is realized. When the methanol engine 10 performs a small cycle, the circulating medium flowing out of the first circulation port 21 of the engine water jacket 20 flows into the thermostat 30 through the first pipe 100 and the circulating medium inlet 31 of the thermostat 30, then flows into the second circulation port 22 of the engine water jacket 20 through the small-cycle outlet 32 of the thermostat 30, the first port 41 and the third port 43 of the three-way valve 40, and finally flows into the first circulation port 21 of the engine water jacket 20, thereby realizing a small cycle of the cooling system of the methanol engine 10. When the methanol engine 10 is started at a low temperature, the circulating medium flowing out of the first circulating port 21 of the engine water jacket 20 flows into the thermostat 30 through the first pipeline 100 and the circulating medium inlet 31 of the thermostat 30, then flows through the three-way valve 40 through the small circulating outlet 32 and the first port 41 of the thermostat 30, flows into the heating device through the second port 42 of the three-way valve 40, is heated by the heating device, and then flows into the second circulating port 22 of the engine water jacket 20, so that the heating cycle of the cooling system of the methanol engine 10 is realized.
Thus, in addition to the large cycle and the small cycle of the cooling system of the methanol engine 10 itself, a heating cycle of the cooling system of the methanol engine 10 is additionally added to heat the methanol engine 10 so as to raise the temperature in the engine cylinder, and further, the methanol fuel in the engine cylinder can be normally atomized, so that the low-temperature start of the methanol engine 10 is realized. On one hand, when the methanol engine 10 needs heating assistance when being started at a low temperature, the three-way valve 40 is controlled by the controller to cut off the small circulation of the cooling system of the methanol engine 10, so that the circulating medium flows into the heating circulation of the cooling system of the methanol engine 10; when the heating assistance is not needed, the three-way valve 40 is controlled by the controller to close the heating cycle, and the circulating medium enters the large cycle or the small cycle of the cooling system of the methanol engine 10, so that the scheme does not influence the large cycle and the small cycle of the cooling system of the methanol engine 10. On the other hand, the inlet and outlet positions of the heating cycle can be shared with the original warm air inlet and outlet water of the vehicle, the structure does not need to be changed, and the operation mode is simpler.
According to one technical scheme of the utility model, the three-way valve 40 is additionally arranged in the circulation path of the cooling system of the methanol engine 10, when the methanol engine 10 needs heating assistance when being started at a low temperature, the three-way valve 40 is controlled by the controller to disconnect the small circulation path of the cooling system of the methanol engine 10, so that a circulation medium enters a heating device after passing through the thermostat 30 and the three-way valve 40, and the circulation medium is heated by the heating device, so that the heating circulation of the methanol engine 10 is realized. Thereby heating the methanol engine 10 to raise the temperature in the cylinder, and enabling the methanol fuel in the cylinder to be atomized normally, thereby completing the low-temperature start of the methanol engine 10. On the one hand, compare in the mode with the help of supplementary start of petrol, this scheme does not need parts such as additional design petrol bellytank, and the implementation mode is loaded down with trivial details simpler. On the other hand, when the methanol engine 10 is started at a low temperature and needs heating assistance, the controller controls the three-way valve 40 to introduce the circulating medium into the heating circulation path, and when the heating assistance is not needed, the controller controls the three-way valve 40 to disconnect the heating circulation path, and the circulating medium enters the large circulation or the small circulation of the cooling system of the methanol engine 10.
Referring to fig. 1 to 3, further, the second port 42 is connected to the second circulation port 22 of the engine water jacket 20 through a second pipeline 200, a heating device is disposed on the second pipeline 200, the heating device includes an electronic water pump 50 and a heater 60, and when the circulation medium is lower than a preset heating temperature, the controller controls the first port 41 of the three-way valve 40 to communicate with the second port 42, so that the circulation medium flows through the first circulation port 21, the first pipeline 100, the circulation medium inlet 31 of the thermostat 30, the small circulation outlet 32, the first port 41, the second port 42, the second pipeline 200, the electronic water pump 50, the heater 60 and the second circulation port 22, thereby implementing a heating cycle of the methanol engine 10. Specifically, the heating device is located on the second pipeline 200, the electronic water pump 50 is located at one end of the second pipeline 200 close to the three-way valve 40, and the heater 60 is located at one end of the second pipeline 200 close to the engine water jacket 20. The circulating medium flowing out of the first circulating port 21 of the engine water jacket 20 flows through the first pipeline 100, the circulating medium inlet 31 of the thermostat 30, the small circulating outlet 32, the first port 41, the second port 42, the second pipeline 200, the electronic water pump 50 and the heater 60 in sequence, the heater 60 is heated and then flows into the second circulating port 22, so that the heated circulating medium enters the engine water jacket 20 to heat the methanol engine 10, and the circulation is performed to realize the heating cycle of the methanol engine 10.
The fuel of the heater 60 is methanol, and the fuel of the heater 60 is methanol carried by the methanol engine 10 itself, so that other fuels do not need to be additionally introduced. The electronic water pump 50 may power the flow of the circulating medium in the heating circulation path.
Further, the third port 43 communicates with the second circulation port 22 through a third line 300, and the methanol engine heating system further includes a fourth line 400 for communicating the third line 300 with the second circulation port 22. Specifically, the fourth pipeline 400 is located on the side of the methanol engine 10 away from the thermostat 30, that is, the fourth pipeline 400 is located on the side close to the second circulation port 22 of the engine water jacket 20, and the circulating medium flows into the second circulation port 22 of the engine water jacket 20. The fourth pipe 400 is provided with a water pump 70 for supplying power to the second circulation port 22 through which the circulation medium flows into the engine water jacket 20.
Referring to fig. 1 and 4, when the circulating medium is lower than the preset small circulation temperature, the controller controls the first port 41 and the third port 43 to be communicated, and the second port 42 to be closed, so that the circulating medium flows through the first circulation port 21, the first pipeline 100, the circulating medium inlet 31 of the thermostat 30, the small circulation outlet 32 of the thermostat 30, the first port 41, the third port 43, the third pipeline 300, the water pump 70, the fourth pipeline 400, and the second circulation port 22, thereby realizing the small circulation of the cooling system of the methanol engine 10. Specifically, the small circulation path of the cooling system of the methanol engine 10 is: the circulating medium flowing out of the first circulation port 21 of the engine water jacket 20 flows into the first pipeline 100, flows into the thermostat 30 through the circulating medium inlet 31, flows through the small circulation outlet 32 of the thermostat 30, the first port 41 of the three-way valve 40, the third port 43 of the three-way valve 40, sequentially flows into the third pipeline 300 and the fourth pipeline 400, is pressurized by the water pump 70 on the fourth pipeline 400, and flows into the second circulation port 22 of the engine water jacket 20, so that the small circulation of the cooling system of the methanol engine 10 is realized. For example, the preset small-cycle temperature may be 76 ℃, and of course, the preset small-cycle temperature may be set according to specific environments and vehicle conditions, and is not limited herein.
With reference to fig. 1, the heating system of the methanol engine 10 further includes a fifth pipeline 500 having a radiator 80, and the large circulation outlet 33 is communicated with the second circulation port 22 through the fifth pipeline 500 and the fourth pipeline 400. Specifically, the radiator 80 is disposed on the fifth pipeline 500, and the radiator 80 is used for cooling the heated circulating medium during a large circulation of the cooling system of the methanol engine 10.
Referring to fig. 1 and 5, when the circulating medium reaches the preset large circulation temperature, the controller controls the first port 41, the second port 42 and the third port 43 of the three-way valve 40 to be closed, so that the circulating medium flows through the first circulation port 21, the first pipeline 100, the circulating medium inlet 31 of the thermostat 30, the large circulation outlet 33 of the thermostat 30, the fifth pipeline 500, the water pump 70, the fourth pipeline 400 and the second circulation port 22, thereby realizing the large circulation of the cooling system of the methanol engine 10. Specifically, the large circulation path of the cooling system of the methanol engine 10 is: the circulating medium flowing out of the first circulation port 21 of the engine water jacket 20 flows into the first pipe 100, flows into the thermostat 30 through the circulating medium inlet 31, flows into the fifth pipe 500 and the fourth pipe 400 in sequence through the large circulation outlet 33 of the thermostat 30, is pressurized by the water pump 70 on the fourth pipe 400, and then flows into the second circulation port 22 of the engine water jacket 20, so that the large circulation of the cooling system of the methanol engine 10 is realized. For example, the preset large-cycle temperature may be 86 ℃, and of course, the preset large-cycle temperature may be set according to specific environments and vehicle conditions, and is not limited herein.
Referring to fig. 1, still further, the methanol engine heating system further includes an EGR water jacket 90, and the EGR water jacket 90 is located between the engine water jacket 20 and the thermostat 30, so that the circulating medium flows through the EGR water jacket 90. EGR exhaust gas recirculation refers to a part of exhaust gas discharged from the engine being returned to the intake manifold and re-entering the cylinders together with fresh mixture. Since the exhaust temperature is generally 700 ℃ minus 800 ℃ and the gasoline ignition point 415 ℃ minus 530 ℃, the EGR valve needs to use cooling liquid to cool the exhaust. The EGR water jacket 90 is provided in the first pipe 100 between the engine water jacket 20 and the thermostat 30, specifically, between the first circulation port 21 and the circulation medium inlet port 31. The circulating medium flowing out of the first circulation port 21 of the engine water jacket 20 flows through the EGR water jacket 90, and then flows into the thermostat 30 through the first pipe 100 and the circulating medium inlet 31 to enter the large circulation of the cooling system or the small circulation or the heating circulation of the cooling system of the methanol engine 10.
Compared with the scheme of leading out the circulating medium from the EGR water jacket 90, the scheme of directly utilizing the circulating medium in the cooling system of the methanol engine 10 by the circulating medium is characterized in that on one hand, the circulating medium is directly taken from the engine water jacket 20, the flowing power of the circulating medium is stronger, and the heating cycle of the methanol engine 10 is more sufficient. On the other hand, the scheme can directly heat all the circulating media, the heating of all the circulating media is not required to be realized in a mode that the heated local circulating media radiate most of the circulating media, and the overall heating efficiency is higher. On the other hand, this scheme can heat the whole circulation medium that flows through heating cycle again, makes the whole temperature of circulation medium more even, can not appear great difference in temperature, also can not appear the problem of false temperature, makes the water temperature sensor show true temperature, when temperature data reached the start temperature condition, after starting methanol engine 10, the temperature can keep, can not descend rapidly.
The present invention further provides a vehicle (not shown), which includes a methanol engine heating system, and the specific structure of the methanol engine heating system refers to the above embodiments, and since the vehicle adopts all the technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a methyl alcohol engine heating system which characterized in that, includes methyl alcohol engine, temperature saver, radiator, three-way valve, heating device and controller, wherein:
an engine water jacket is arranged in the methanol engine, an accommodating space is formed between the engine water jacket and a cylinder body and a cylinder cover of the methanol engine, and a circulating medium is arranged in the accommodating space;
the thermostat is provided with a circulating medium inlet, a small circulating outlet and a large circulating outlet, the circulating medium inlet is connected with a first circulating port of the engine water jacket through a first pipeline, the small circulating outlet is connected with a second circulating port of the engine water jacket through a first port and a third port of the three-way valve, and the large circulating outlet is connected with the second circulating port through the radiator;
a second port of the three-way valve is connected with the second circulation port through the heating device;
and the controller is connected with the three-way valve and used for controlling the first port to be communicated with the second port when the circulating medium is lower than a preset heating temperature, and the third port is closed so that the heating device heats the circulating medium to realize the heating cycle of the methanol engine.
2. The methanol engine heating system according to claim 1, wherein the second port is connected to a second circulation port of the engine water jacket through a second pipe, the second pipe is provided with the heating device, the heating device includes an electric water pump and a heater, and the controller controls the first port of the three-way valve to communicate with the second port when the circulation medium is lower than a preset heating temperature, so that the circulation medium flows through the first circulation port, the first pipe, a circulation medium inlet of the thermostat, the small circulation outlet, the first port, the second pipe, the electric water pump, the heater, and the second circulation port to realize a heating cycle of the methanol engine.
3. The methanol engine heating system of claim 2, wherein the fuel of the heater is methanol.
4. The methanol engine heating system according to claim 1, wherein the third port communicates with the second circulation port through a third pipe, the methanol engine heating system further comprising a fourth pipe for communicating the third pipe with the second circulation port.
5. The methanol engine heating system according to claim 4, wherein a water pump is provided on the fourth line.
6. The methanol engine heating system according to claim 5, wherein the controller controls the first port and the third port to be communicated and the second port to be closed when the circulating medium is lower than a preset small circulation temperature, so that the circulating medium flows through the first circulation port, the first pipe, the circulating medium inlet of the thermostat, the small circulation outlet of the thermostat, the first port, the third pipe, the water pump, the fourth pipe, and the second circulation port to realize a small circulation of a cooling system of the methanol engine.
7. The methanol engine heating system according to claim 5, further comprising a fifth pipeline provided with the radiator, wherein the large circulation outlet is communicated with the second circulation port through the fifth pipeline and the fourth pipeline.
8. The methanol engine heating system according to claim 7, wherein the controller controls the first port, the second port, and the third port of the three-way valve to be closed when the circulating medium reaches a preset large circulation temperature, so that the circulating medium flows through the first circulation port, the first pipe, the circulating medium inlet of the thermostat, the large circulation outlet of the thermostat, the fifth pipe, the water pump, the fourth pipe, and the second circulation port to realize a large circulation of a cooling system of the methanol engine.
9. The methanol engine heating system of claim 1, further comprising an EGR water jacket between the engine water jacket and the thermostat to flow the circulating medium through the EGR water jacket.
10. A vehicle characterized by comprising the methanol engine heating system of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122424180.4U CN215486338U (en) | 2021-10-08 | 2021-10-08 | Methanol engine heating system and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122424180.4U CN215486338U (en) | 2021-10-08 | 2021-10-08 | Methanol engine heating system and vehicle |
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| CN215486338U true CN215486338U (en) | 2022-01-11 |
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| CN202122424180.4U Active CN215486338U (en) | 2021-10-08 | 2021-10-08 | Methanol engine heating system and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115076006A (en) * | 2022-06-29 | 2022-09-20 | 上海和夏骏智科技有限公司 | Range extender type methanol engine low-temperature cold start system and start method |
| CN118548138A (en) * | 2024-05-29 | 2024-08-27 | 新盛安动力科技(山东)有限公司 | Methanol Heating Methanol Engine |
-
2021
- 2021-10-08 CN CN202122424180.4U patent/CN215486338U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115076006A (en) * | 2022-06-29 | 2022-09-20 | 上海和夏骏智科技有限公司 | Range extender type methanol engine low-temperature cold start system and start method |
| CN118548138A (en) * | 2024-05-29 | 2024-08-27 | 新盛安动力科技(山东)有限公司 | Methanol Heating Methanol Engine |
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