CN219007530U

CN219007530U - Hydrogen circulating pump ice melting system and hydrogen fuel cell vehicle

Info

Publication number: CN219007530U
Application number: CN202320016058.XU
Authority: CN
Inventors: 董德宝; 赵舟; 马梦莉; 樊海梅; 陈涛; 鞠杜虎
Original assignee: King Long United Automotive Industry Suzhou Co Ltd
Current assignee: King Long United Automotive Industry Suzhou Co Ltd
Priority date: 2023-01-03
Filing date: 2023-01-03
Publication date: 2023-05-12
Anticipated expiration: 2033-01-03

Abstract

The utility model discloses a hydrogen circulating pump ice melting system, which comprises a warm air system, a hydrogen fuel cell system, a warm air branch pipeline and a control system, wherein the warm air system is used for heating a hydrogen fuel cell vehicle; the hydrogen fuel cell system is used for providing power for the hydrogen fuel cell vehicle and comprises a hydrogen circulating pump; the inlet of the warm air branch pipeline is connected with the warm air system, and the outlet of the warm air branch pipeline is connected with the hydrogen fuel cell system, so that hot air of the warm air system can heat and melt ice to the hydrogen circulating pump; the control system comprises a fuel cell engine controller and a whole vehicle controller, wherein the fuel cell engine controller is electrically connected with the whole vehicle controller, and the control system is used for adjusting the working state of the hydrogen fuel cell vehicle. Therefore, the high-power warm air system is used for heating the hydrogen circulating pump, so that the rapid ice melting of the hydrogen circulating pump can be realized, and the normal starting of the hydrogen fuel cell vehicle in a low-temperature environment is ensured.

Description

Hydrogen circulating pump ice melting system and hydrogen fuel cell vehicle

Technical Field

The utility model relates to the technical field of hydrogen fuel cell vehicles, in particular to a hydrogen circulating pump ice melting system and a hydrogen fuel cell vehicle.

Background

The working principle of the hydrogen fuel cell vehicle is that hydrogen and oxygen in the air react electrochemically inside the hydrogen fuel cell to generate water, electricity and heat. The hydrogen circulating pump is used as an important component of a hydrogen circulating system of the hydrogen fuel cell engine, so that the utilization rate of hydrogen can be improved, but the phenomenon that cathode water permeates to an anode through a proton exchange membrane exists during electrochemical reaction of the hydrogen fuel cell, so that gas circulating through the hydrogen circulating pump contains water vapor. Therefore, when the temperature is low in winter, the hydrogen circulating pump is easy to freeze in a non-working state, so that when the hydrogen fuel cell is started at the next low temperature in a cold mode, the hydrogen circulating pump is not working and the starting fails; meanwhile, the service life of the hydrogen circulating pump can be reduced due to the fact that equipment is frozen.

The comparison document 1 (patent number CN 202220982233.6) discloses an electric heating ice melting structure of a vortex type hydrogen circulating pump, wherein a vortex rotor, an electric heating ring and an annular flow channel are arranged in a booster of the hydrogen circulating pump, before low-temperature starting, the electric heating ring is electrified, heat is transferred into the annular flow channel after the temperature of the electric heating ring is increased, so that ice formed by water vapor on the vortex rotor is melted, and finally, a motor is started again, so that the problem that the vortex rotor is frozen and not rotated is solved.

The reference 2 (patent number CN 202110983636.2) discloses a fuel cell hydrogen loop cold start ice melting method, which comprises a fuel cell stack, an air supply subsystem and a hydrogen supply subsystem, wherein before low-temperature start, hot air generated in the air supply subsystem is introduced into a hydrogen circulation pump in the hydrogen supply subsystem, and ice melting is carried out on the hot air in the hydrogen circulation pump.

The energy required for heating and melting ice is derived from external additional power supply or gas heat of an air supply subsystem of the hydrogen fuel cell, and the power of the energy source is usually not high, so that the ice melting speed is low.

Disclosure of Invention

In view of the above, the utility model provides a hydrogen circulating pump ice melting system and a hydrogen fuel cell vehicle, which can realize rapid ice melting of the hydrogen circulating pump by heating the hydrogen circulating pump by using a high-power warm air system, thereby ensuring normal starting of the hydrogen fuel cell vehicle in a low-temperature environment.

An embodiment of a first aspect of the present utility model provides a hydrogen circulation pump ice melting system applied to a hydrogen fuel cell vehicle, including a warm air system, a hydrogen fuel cell system, a warm air branch pipe and a control system, wherein the warm air system is used for heating the hydrogen fuel cell vehicle; the hydrogen fuel cell system is used for providing power for the hydrogen fuel cell vehicle and comprises a hydrogen circulating pump; the inlet of the warm air branch pipeline is connected with the warm air system, and the outlet of the warm air branch pipeline is connected with the hydrogen fuel cell system, so that hot air of the warm air system can heat and melt ice to the hydrogen circulating pump; the control system comprises a fuel cell engine controller and a whole vehicle controller, wherein the fuel cell engine controller is electrically connected with the whole vehicle controller, and the control system is used for adjusting the working state of the hydrogen fuel cell vehicle.

Further, the warm air system comprises a warm air pipeline and a temperature sensor, wherein an air filter, a blower and a heater are sequentially arranged on the warm air pipeline, and the warm air pipeline is used for heating external air and conveying the external air into the hydrogen fuel cell vehicle; the temperature sensor is arranged at the outlet of the warm air pipeline and is also electrically connected with the fuel cell engine controller.

Further, the hydrogen fuel cell system further comprises a pile, an air inlet pipeline, a circulating pipeline and a discharge pipeline, wherein the pile is provided with an anode inlet, an anode outlet and a cathode outlet; the air inlet pipeline is communicated with the anode inlet and is used for conveying hydrogen to the galvanic pile; the inlet of the circulating pipeline is communicated with the anode outlet, the outlet of the circulating pipeline is communicated with the air inlet pipeline, and the hydrogen circulating pump is arranged on the circulating pipeline; the exhaust pipeline is used for exhausting waste water and waste gas generated by electrochemical reaction of the galvanic pile.

Further, the circulating pipeline is also provided with a gas-water separator, the gas-water separator comprises a first inlet, a first outlet and a second outlet, the first inlet is connected with the anode outlet, and the first outlet is connected with the inlet of the hydrogen circulating pump.

Further, the ice melting system of the hydrogen circulating pump further comprises a first electronic three-way valve and a second electronic three-way valve, wherein the first electronic three-way valve is arranged on the warm air pipeline, the first electronic three-way valve is positioned at the outlet of the warm air pipeline, and the inlet of the warm air branch pipeline is communicated with the first electronic three-way valve; the second electronic three-way valve is arranged on the circulating pipeline, the second electronic three-way valve is positioned between the gas-water separator and the hydrogen circulating pump, and the outlet of the warm air branch pipeline is communicated with the second electronic three-way valve; the first electronic three-way valve and the second electronic three-way valve are electrically connected to the whole vehicle controller.

Further, the discharge pipeline comprises a third electronic three-way valve and a first discharge pipe, the third electronic three-way valve is arranged on the circulation pipeline, and the third electronic three-way valve is positioned between an outlet of the circulation pipeline and the hydrogen circulation pump; the first discharge pipe is communicated with the third electronic three-way valve, and a first electromagnetic valve is arranged on the first discharge pipe; the third electronic three-way valve and the first electromagnetic valve are electrically connected to the whole vehicle controller.

Further, the exhaust pipeline further comprises a second exhaust pipe and a third exhaust pipe, the second exhaust pipe is communicated with the second outlet and the first exhaust pipe, and a second electromagnetic valve is arranged on the second exhaust pipe; the third discharge pipe is communicated with the cathode outlet and the first discharge pipe, and a third electromagnetic valve is arranged on the third discharge pipe; the second electromagnetic valve and the third electromagnetic valve are electrically connected to the whole vehicle controller.

Further, a hydrogen inlet valve is arranged on the air inlet pipeline and is used for adjusting the flow of hydrogen conveyed to the electric pile.

Further, an outlet of the first discharge pipe is provided with a muffler.

An embodiment of a second aspect of the present utility model provides a hydrogen fuel cell vehicle, including a vehicle body, a hydrogen storage tank, and a hydrogen circulation pump ice melting system as provided in the embodiment of the first aspect, where the hydrogen circulation pump ice melting system is disposed on the vehicle body, and the hydrogen storage tank is connected to the hydrogen fuel cell system.

The technical scheme provided by the embodiment of the utility model has the beneficial effects that at least: the system comprises a warm air system, a hydrogen fuel cell system, a warm air branch pipeline and a control system, wherein the warm air system is used for heating the hydrogen fuel cell vehicle; the hydrogen fuel cell system is used for providing power for the hydrogen fuel cell vehicle and comprises a hydrogen circulating pump; the inlet of the warm air branch pipeline is connected with the warm air system, and the outlet of the warm air branch pipeline is connected with the hydrogen fuel cell system, so that hot air of the warm air system can heat and melt ice to the hydrogen circulating pump; the control system comprises a fuel cell engine controller and a whole vehicle controller, wherein the fuel cell engine controller is electrically connected with the whole vehicle controller, and the control system is used for adjusting the working state of the hydrogen fuel cell vehicle. Therefore, the high-power warm air system is used for heating the hydrogen circulating pump, so that the rapid ice melting of the hydrogen circulating pump is realized, the problem that an engine of the hydrogen fuel cell vehicle cannot be started due to ice breaking failure is avoided, and the normal operation of the hydrogen fuel cell vehicle in a low-temperature environment is further ensured.

After passing through the hydrogen circulating pump, the gas provided by the warm air system is discharged to the outside of the vehicle body through the first discharge pipe and the first electromagnetic valve, and the gas is usually provided with waste heat and residual pressure, so that the phenomenon that a discharge pipeline is frozen before the fuel cell engine is started can be relieved, and the starting of the fuel cell engine is accelerated.

The foregoing description is only an overview of the technical solutions of the present application, and may be implemented according to the content of the specification in order to make the technical means of the present application more clearly understood, and in order to make the above-mentioned and other objects, features and advantages of the present application more clearly understood, the following detailed description of the present application will be given.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. Wherein:

fig. 1 is a schematic diagram showing a structure of a hydrogen circulation pump ice melting system applied to a hydrogen fuel cell vehicle according to an embodiment of the present utility model.

The correspondence between the reference numerals and the component names in fig. 1 is:

a warm air system, a warm air pipeline, a 12 air filter, a 13 blower, a 14 heater, a 15 temperature sensor, a 20 hydrogen fuel cell system, a 21 hydrogen circulating pump, a 22 electric pile, a 221 anode inlet, a 222 anode outlet, a 223 cathode outlet, a 23 air inlet pipeline, a 231 hydrogen inlet valve, a 24 circulating pipeline, a 25 discharge pipeline, a 251 third electronic three-way valve, a 252 first discharge pipe, a 253 first electromagnetic valve, a 254 second discharge pipe, a 255 second electromagnetic valve, a 256 third discharge pipe, a 257 third electromagnetic valve, a 26 gas-water separator, a 261 first inlet, a 262 first outlet, a 263 second outlet, a 27 silencer, a 30 warm air branch pipeline, a 31 first electronic three-way valve, a 32 second electronic three-way valve.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

A hydrogen circulation pump ice melting system and a hydrogen fuel cell vehicle according to some embodiments of the present utility model are described below with reference to fig. 1.

As shown in fig. 1, a hydrogen circulation pump ice melting system according to an embodiment of the first aspect of the present utility model includes a warm air system 10, a hydrogen fuel cell system 20, a warm air branch pipe 30, and a control system, the warm air system 10 being configured to supply heat to a hydrogen fuel cell vehicle; the hydrogen fuel cell system 20 is for powering a hydrogen fuel cell vehicle, the hydrogen fuel cell system 20 including a hydrogen circulation pump 21; an inlet of the warm air branch pipe 30 is connected to the warm air system 10, and an outlet of the warm air branch pipe 30 is connected to the hydrogen fuel cell system 20, so that hot air of the warm air system 10 can heat and melt ice on the hydrogen circulating pump 21; the control system comprises a fuel cell engine controller and a whole vehicle controller, wherein the fuel cell engine controller is electrically connected with the whole vehicle controller, and the control system is used for adjusting the working state of the hydrogen fuel cell vehicle. Therefore, the high-power warm air system 10 is used for heating the hydrogen circulating pump 21, so that the rapid ice melting of the hydrogen circulating pump 21 can be realized, and the normal starting of the hydrogen fuel cell vehicle in a low-temperature environment is ensured.

Specifically, the working process of the ice melting system of the hydrogen circulating pump is as follows:

step one: and heating to melt ice. After the hydrogen fuel cell vehicle is started, a fuel cell engine controller (FCCU) firstly monitors the environment temperature outside the vehicle body, when the environment temperature is detected to be lower than 0 ℃, the fuel cell engine controller sends a deicing request instruction to a whole Vehicle Controller (VCU), the whole vehicle controller prompts a driver to start a warm air system 10 through an instrument, and after hot air in the warm air system 10 reaches a set temperature, the hydrogen circulating pump 21 is heated and deicing through a warm air branch pipeline 30.

Step two: the hydrogen circulation pump 21 is started. After ice in the hydrogen circulating pump 21 melts, air with water vapor is discharged out of the vehicle body through the hydrogen fuel cell system 20, meanwhile, the fuel cell engine controller sends a starting signal to the hydrogen circulating pump 21, after the hydrogen circulating pump 21 works normally, the fuel cell engine controller sends a signal for stopping melting ice to the whole vehicle controller, the whole vehicle controller controls the warm air system 10 to stop heating the hydrogen circulating pump 21, and warm air is introduced into the vehicle.

Step three: and (5) purging with hydrogen. The hydrogen fuel cell system 20 enters a low-temperature start mode, hydrogen purging is performed on the hydrogen fuel cell system 20, excess air in the hydrogen fuel cell system 20 is discharged, and the hydrogen fuel cell system 20 enters an operating state after the purging is completed.

The inlet of the warm air system 10 is communicated with the outside of the hydrogen fuel cell vehicle, and the outlet of the warm air system 10 is communicated with the carriage of the hydrogen fuel cell vehicle, so that the warm air system 10 can heat the outside air and then heat the carriage; the outlet of the warm air system 10 is also connected to the inlet of the warm air branch pipe 30 so that the warm air system 10 can heat and melt ice also to the hydrogen circulation pump 21.

The hydrogen circulation pump 21 can circulate the water vapor generated by the electrochemical reaction of the hydrogen fuel cell system 20 to the hydrogen inlet, humidify the hydrogen entering the hydrogen fuel cell system 20, and further improve the efficiency of the hydrogen fuel cell system 20 and the utilization rate of the hydrogen.

As shown in fig. 1, the warm air system 10 includes a warm air duct 11 and a temperature sensor 15, and an air filter 12, a blower 13, and a heater 14 are sequentially provided on the warm air duct 11, and the warm air duct 11 is used for heating external air and delivering the heated air to the inside of the hydrogen fuel cell vehicle. Specifically, after the warm air system 10 is turned on, the air blower 13 blows the air filtered by the air filter 12 through the heater 14, and the heated air enters the vehicle body through the warm air pipeline 11, wherein the filter can filter out impurities such as dust in the air, so that the air quality of the carriage is ensured, and meanwhile, the fault of the hydrogen fuel cell vehicle is avoided. The temperature sensor 15 is disposed at an outlet of the warm air duct 11, and is capable of detecting a temperature of the hot air passing through the warm air duct 11, and the temperature sensor 15 is further electrically connected to the fuel cell engine controller for feeding back a detection result to the fuel cell engine controller.

As shown in fig. 1, the hydrogen fuel cell system 20 further includes a stack 22, an air intake pipe 23, a circulation pipe 24, and an exhaust pipe 25, the stack 22 is provided with an anode inlet 23, an anode outlet 222, and a cathode outlet 223, and the stack 22 is used for performing an electrochemical reaction of hydrogen and oxygen to power the hydrogen fuel cell vehicle; the air inlet pipeline 23 is communicated with the anode inlet 23, and the air inlet pipeline 23 is used for conveying hydrogen to the electric pile 22; the inlet of the circulating pipeline 24 is communicated with the anode outlet 222, the outlet of the circulating pipeline 24 is communicated with the air inlet pipeline 23, so that the residual hydrogen for electrochemical reaction of the galvanic pile 22 can be collected, and the residual hydrogen is circulated to the air inlet pipeline 23, thereby being convenient for recycling; the hydrogen circulation pump 21 is arranged on the circulation pipeline 24 and is used for pumping hydrogen into the air inlet pipeline 23; the exhaust pipe 25 is used to exhaust the waste water and the exhaust gas generated by the electrochemical reaction of the stack 22.

As shown in fig. 1, the circulation pipe 24 is further provided with a gas-water separator 26 for collecting water and water vapor generated by the electrochemical reaction of the galvanic pile 22, separating the water vapor and recycling the water vapor; the gas-water separator 26 includes a first inlet 261, a first outlet 262 and a second outlet 263, the first inlet 261 being connected to the anode outlet 222 for receiving water and water vapor discharged from the anode outlet 222; the first outlet 262 is connected to the inlet of the hydrogen circulation pump 21, and is capable of introducing the collected water vapor into the air inlet pipe 23 through the hydrogen circulation pump 21 to humidify the hydrogen entering the electric pile 22, thereby improving the hydrogen utilization rate.

As shown in fig. 1, the ice melting system of the hydrogen circulation pump further includes a first electronic three-way valve 31 and a second electronic three-way valve 32, the first electronic three-way valve 31 is disposed on the warm air pipe 11, the first electronic three-way valve 31 is disposed at an outlet of the warm air pipe 11, and an inlet of the warm air branch pipe 30 is communicated with the first electronic three-way valve 31, so that hot air passing through the warm air pipe 11 can be set to enter a cabin or enter the warm air branch pipe 30 by adjusting the first electronic three-way valve 31. The second electronic three-way valve 32 is disposed on the circulation pipe 24, the second electronic three-way valve 32 is disposed between the gas-water separator 26 and the hydrogen circulation pump 21, and the outlet of the warm air branch pipe 30 is connected to the second electronic three-way valve 32, so that by adjusting the second electronic three-way valve 32, it is possible to set the hot air passing through the warm air branch pipe 30 to enter the hydrogen circulation pump 21 or the water vapor discharged from the first outlet 262 to enter the hydrogen circulation pump 21.

The first electronic three-way valve 31 and the second electronic three-way valve 32 are electrically connected to the vehicle controller, so that the opening and closing of the first electronic three-way valve 31 and the second electronic three-way valve 32 in different directions can be controlled by the vehicle controller.

As shown in fig. 1, the discharge pipe 25 includes a third electronic three-way valve 251 and a first discharge pipe 252, the third electronic three-way valve 251 being provided on the circulation pipe 24 for connecting the first discharge pipe 252 to the circulation pipe 24; the third electronic three-way valve 251 is located between the outlet of the circulation pipe 24 and the hydrogen circulation pump 21, and the first exhaust pipe 252 is communicated with the third electronic three-way valve 251 so that by adjusting the third electronic three-way valve 251, it is possible to set the gas exhausted through the hydrogen circulation pump 21 to enter the intake pipe 23 or to enter the first exhaust pipe 252. The first discharge pipe 252 is provided with a first electromagnetic valve 253, and the first electromagnetic valve 253 can adjust the communication or closing of the first discharge pipe 252 and the circulation pipe 24.

The third electronic three-way valve 251 and the first electromagnetic valve 253 are electrically connected to the vehicle controller, so that the opening and closing of the third electronic three-way valve 251 and the opening and closing of the first electromagnetic valve 253 in different directions can be controlled by the vehicle controller.

As shown in fig. 1, the discharge pipe 25 further includes a second discharge pipe 254 and a third discharge pipe 256, the second discharge pipe 254 being communicated with the second outlet 263 and the first discharge pipe 252 for discharging the wastewater collected in the gas-water separator 26, so that the wastewater enters the first discharge pipe 252 and is discharged out of the vehicle body; the second discharge pipe 254 is provided with a second electromagnetic valve 255, and the second electromagnetic valve 255 can adjust the communication or closing of the second discharge pipe 254 with the second outlet 263. The third discharge pipe 256 is communicated with the cathode outlet 223 and the first discharge pipe 252 for discharging the wastewater generated at the cathode outlet 223, so that the wastewater enters the first discharge pipe 252 and is discharged out of the vehicle body; the third discharge pipe 256 is provided with a third solenoid valve 257, and the third solenoid valve 257 can adjust the communication or closing of the third discharge pipe 256 with the cathode outlet 223.

The second electromagnetic valve 255 and the third electromagnetic valve 257 are electrically connected to the vehicle controller, so that opening and closing of the second electromagnetic valve 255 and the third electromagnetic valve 257 can be controlled by the vehicle controller.

Specifically, the hydrogen fuel cell system 20 operates as follows:

step one: and heating to melt ice. When the hot air in the warm air pipeline 11 reaches the set temperature, the whole vehicle controller controls the first electronic three-way valve 31 to be communicated with the warm air pipeline 11 and the warm air branch pipeline 30, the second electronic three-way valve 32 to be communicated with the warm air branch pipeline 30 and the hydrogen circulating pump 21, the third electronic three-way valve 251 to be communicated with the hydrogen circulating pump 21 and the first discharging pipe 252, and the first electromagnetic valve 253 is opened, so that the hot air is introduced into the booster cavity of the hydrogen circulating pump 21 to heat and melt ice, and water and steam generated by melting ice and the hot air are discharged out of the vehicle body together through the outlet of the hydrogen circulating pump 21 and the first discharging pipe 252.

Step two: the hydrogen circulation pump 21 is started. After the hydrogen circulation pump 21 can work normally, the whole vehicle controller controls the first electronic three-way valve 31 to communicate the warm air pipeline 11 with the carriage and the second electronic three-way valve 32 to communicate the first outlet 262 with the hydrogen circulation pump 21, so that warm air is introduced into the carriage for heating.

Step three: and (5) purging with hydrogen. Before the fuel cell enters a low-temperature starting mode, hydrogen purging is firstly carried out, specifically, hydrogen is discharged out of the vehicle body through an air inlet pipeline 23, a galvanic pile 22, a gas-water separator 26, a second electronic three-way valve 32, a hydrogen circulating pump 21, a third electronic three-way valve 251, a first electromagnetic valve 253 and a discharge pipeline 25 in sequence; after the purging is finished, the whole vehicle controller controls the first electromagnetic valve 253 to be closed, the third electronic three-way valve 251 is communicated with the circulating pipeline 24 and the air inlet pipeline 23, and the fuel cell enters a working state.

As shown in fig. 1, a hydrogen inlet valve 231 is provided in the inlet pipe 23, and the hydrogen inlet valve 231 is used to regulate the flow rate of hydrogen gas supplied to the stack 22 and control the reaction rate of the stack 22, thereby regulating the power output from the hydrogen fuel cell system 20.

As shown in fig. 1, the muffler 27 is provided at the outlet of the first discharge pipe 252, so that noise generated in the operating state of the hydrogen fuel cell system 20 can be reduced.

According to the hydrogen fuel cell vehicle provided by the embodiment of the second aspect of the utility model, the hydrogen fuel cell vehicle comprises a vehicle body, a hydrogen storage tank and the hydrogen circulating pump ice melting system provided by the embodiment of the first aspect, wherein the hydrogen circulating pump ice melting system is arranged on the vehicle body, the hydrogen storage tank is connected with the hydrogen fuel cell system 20, and the high-power warm air system 10 can be used for heating the hydrogen circulating pump 21 before the hydrogen fuel cell system 20 is started, so that the rapid ice melting of the hydrogen circulating pump 21 is realized, and the normal starting of the hydrogen fuel cell vehicle under a low-temperature environment is ensured.

In the description of the present utility model, the term "plurality" means two or more, unless explicitly defined otherwise, the orientation or positional relationship indicated by the terms "upper", "lower", etc. are orientation or positional relationship based on the drawings, merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model; the terms "coupled," "mounted," "secured," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In the present utility model, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A hydrogen circulation pump ice melting system applied to a hydrogen fuel cell vehicle, comprising:

a warm air system (10) for heating the hydrogen fuel cell vehicle;

-a hydrogen fuel cell system (20) for powering said hydrogen fuel cell vehicle, said hydrogen fuel cell system (20) comprising a hydrogen circulation pump (21);

a warm air branch pipe (30), wherein an inlet of the warm air branch pipe (30) is connected to the warm air system (10), and an outlet of the warm air branch pipe (30) is connected to the hydrogen fuel cell system (20) so that hot air of the warm air system (10) can heat and melt ice on the hydrogen circulating pump (21);

the control system comprises a fuel cell engine controller and a whole vehicle controller, wherein the fuel cell engine controller is electrically connected with the whole vehicle controller, and the control system is used for adjusting the working state of the hydrogen fuel cell vehicle.

2. Hydrogen circulation pump ice melting system according to claim 1, characterized in that the warm air system (10) comprises:

the air filter (12), the blower (13) and the heater (14) are sequentially arranged on the warm air pipeline (11), and the warm air pipeline (11) is used for heating external air and conveying the heated air into the hydrogen fuel cell vehicle;

and a temperature sensor (15) arranged at the outlet of the warm air pipeline (11), wherein the temperature sensor (15) is also electrically connected with the fuel cell engine controller.

3. The hydrogen circulation pump ice melting system according to claim 2, wherein said hydrogen fuel cell system (20) further comprises:

a galvanic pile (22), the galvanic pile (22) being provided with an anode inlet (221), an anode outlet (222) and a cathode outlet (223);

an air inlet pipe (23) communicated with the anode inlet (221), wherein the air inlet pipe (23) is used for conveying hydrogen to the electric pile (22);

the inlet of the circulating pipeline (24) is communicated with the anode outlet (222), the outlet of the circulating pipeline (24) is communicated with the air inlet pipeline (23), and the hydrogen circulating pump (21) is arranged on the circulating pipeline (24);

and a discharge pipe (25) for discharging waste water and waste gas generated by the electrochemical reaction of the electric pile (22).

4. A hydrogen circulation pump ice-melt system according to claim 3, wherein:

the circulation pipe (24) is further provided with a gas-water separator (26), the gas-water separator (26) comprises a first inlet (261), a first outlet (262) and a second outlet (263), the first inlet (261) is connected with the anode outlet (222), and the first outlet (262) is connected with the inlet of the hydrogen circulation pump (21).

5. The hydrogen circulation pump ice melting system of claim 4, further comprising:

the first electronic three-way valve (31) is arranged on the warm air pipeline (11), the first electronic three-way valve (31) is positioned at the outlet of the warm air pipeline (11), and the inlet of the warm air branch pipeline (30) is communicated with the first electronic three-way valve (31);

the second electronic three-way valve (32) is arranged on the circulating pipeline (24), the second electronic three-way valve (32) is positioned between the gas-water separator (26) and the hydrogen circulating pump (21), and the outlet of the warm air branch pipeline (30) is communicated with the second electronic three-way valve (32);

the first electronic three-way valve (31) and the second electronic three-way valve (32) are electrically connected to the whole vehicle controller.

6. Hydrogen circulation pump ice melting system according to claim 4, characterised in that the discharge duct (25) comprises:

a third electronic three-way valve (251) disposed on the circulation pipe (24), the third electronic three-way valve (251) being located between the outlet of the circulation pipe (24) and the hydrogen circulation pump (21);

a first discharge pipe (252) connected to the third electronic three-way valve (251), wherein a first electromagnetic valve (253) is provided on the first discharge pipe (252);

the third electronic three-way valve (251) and the first electromagnetic valve (253) are electrically connected to the vehicle controller.

7. The hydrogen circulation pump ice melting system of claim 6, wherein said discharge conduit (25) further comprises:

a second discharge pipe (254) connected to the second outlet (263) and the first discharge pipe (252), wherein a second electromagnetic valve (255) is provided on the second discharge pipe (254);

a third discharge pipe (256) connected to the cathode outlet (223) and the first discharge pipe (252), wherein a third electromagnetic valve (257) is provided on the third discharge pipe (256);

wherein, second solenoid valve (255) and third solenoid valve (257) electricity are connected in whole car controller.

8. A hydrogen circulation pump ice-melt system according to claim 3, wherein:

the air inlet pipeline (23) is provided with a hydrogen inlet valve (231), and the hydrogen inlet valve (231) is used for adjusting the flow of hydrogen conveyed to the electric pile (22).

9. The hydrogen circulation pump ice-melt system of claim 7, wherein:

an outlet of the first discharge pipe (252) is provided with a muffler (27).

10. A hydrogen fuel cell vehicle characterized by comprising:

a vehicle body;

a hydrogen storage tank; and

the hydrogen circulation pump ice-melting system according to any one of claims 1 to 9, which is provided on the vehicle body, the hydrogen storage tank being connected to the hydrogen fuel cell system (20).