CN213007502U - Integrated thermal management system of fuel cell passenger car - Google Patents
Integrated thermal management system of fuel cell passenger car Download PDFInfo
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- CN213007502U CN213007502U CN202021432807.XU CN202021432807U CN213007502U CN 213007502 U CN213007502 U CN 213007502U CN 202021432807 U CN202021432807 U CN 202021432807U CN 213007502 U CN213007502 U CN 213007502U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
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Abstract
The utility model relates to a fuel cell passenger train technical field, specifically speaking relates to a fuel cell passenger train integrated form heat management system. The system comprises a warm air system liquid loop of a carriage, a liquid cooling loop of a fuel cell engine and a waste heat utilization heat exchanger; the hot water channel of the waste heat utilization heat exchanger is connected to the liquid cooling loop, and the cold water channel of the waste heat utilization heat exchanger is connected to the liquid loop of the warm air system. The utility model discloses an increase the liquid cooling return circuit of waste heat utilization heat exchanger with fuel cell engine and the warm braw system liquid return circuit in carriage and combine, when winter low temperature operating mode, utilize the high temperature liquid in the fuel cell engine liquid cooling return circuit, in the waste heat utilization heat exchanger, heat the liquid in the warm braw system in carriage, the latter takes the heat to the carriage in for the heating can not only guarantee the travelling comfort of riding, more can greatly reduced energy consumption, the energy saving.
Description
Technical Field
The utility model relates to a fuel cell passenger train technical field, specifically speaking relates to a fuel cell passenger train integrated form heat management system.
Background
At present, the efficiency of a fuel cell engine for a fuel cell passenger car is about 50%, and a large amount of waste heat is generated in the working process. The engine heat management system of the existing fuel cell passenger car discharges the waste heat through the heat exchange water tank, and the heat is dissipated in the atmosphere and is not utilized in time. Meanwhile, under the working condition of low temperature in winter, the whole vehicle needs to adopt an electric air conditioner or a PTC liquid heater, consumes a large amount of electric energy, and provides heat energy for the carriage so as to create a comfortable riding environment. That is to say, the fuel cell passenger car energy is greatly wasted due to the respective war and distributed energy utilization, and the fuel cell passenger car energy is innovatively applied, saves energy and reduces consumption, improves the endurance capacity of the whole car and is very slow in the current new energy passenger car industry pursuing high efficiency and high endurance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fuel cell passenger train integrated form thermal management system to solve foretell technical problem.
In order to solve the above problems, the utility model adopts the following technical scheme:
an integrated thermal management system for a fuel cell passenger vehicle, comprising: the system comprises a warm air system liquid loop of a carriage, a liquid cooling loop of a fuel cell engine and a waste heat utilization heat exchanger; the hot water channel of the waste heat utilization heat exchanger is connected to the liquid cooling loop, and the cold water channel of the waste heat utilization heat exchanger is connected to the liquid loop of the warm air system.
Further, the following steps: the liquid cooling loop is also connected with an electric three-way valve, a heat radiation water tank, an electromagnetic valve and a first water pump; the water inlet and the second water outlet of the electric three-way valve are connected to the liquid cooling loop, the first water outlet of the electric three-way valve is connected with the water inlet of the heat dissipation water tank, and the water outlet of the heat dissipation water tank is connected to the liquid cooling loop; the electromagnetic valve is connected between a water outlet of a hot water channel of the waste heat utilization heat exchanger and a water outlet of the heat dissipation water tank, and the first water pump is connected between the water outlet of the heat dissipation water tank and a water inlet of a water cavity of the fuel cell engine.
And further: and a second water pump, a PCT liquid heater and a plurality of radiator groups are sequentially connected to a warm air system liquid loop between a water outlet and a water inlet of a cold water channel of the waste heat utilization heat exchanger.
Has the advantages that: compared with the prior art, the utility model discloses an increase the liquid cooling return circuit of waste heat utilization heat exchanger with the fuel cell engine and combine together with the warm braw system liquid return circuit in carriage, when winter low temperature operating mode, utilize the high temperature liquid in the fuel cell engine liquid cooling return circuit, in the waste heat utilization heat exchanger, heat the liquid in the warm braw system in carriage, the latter takes the heat to the carriage in for the heating can not only guarantee the travelling comfort of riding, more can greatly reduced energy consumption, the energy saving.
Drawings
Fig. 1 is a schematic diagram of an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Example (b):
referring to fig. 1, the integrated thermal management system for a fuel cell passenger car according to the present embodiment includes a warm air system liquid loop 1 of a car, a liquid cooling loop 2 of a fuel cell engine 4, and a waste heat utilization heat exchanger 5; the hot water channel of the waste heat utilization heat exchanger 5 is connected to the liquid cooling loop 2, and the cold water channel of the waste heat utilization heat exchanger 5 is connected to the warm air system liquid loop 1.
The liquid cooling loop 2 is also connected with an electric three-way valve 7, a heat radiation water tank 6, an electromagnetic valve 8 and a first water pump 9; the water inlet and the second water outlet of the electric three-way valve 7 are connected to the liquid cooling loop 2, the first water outlet of the electric three-way valve 7 is connected to the water inlet of the heat dissipation water tank 6, and the water outlet of the heat dissipation water tank 6 is connected to the liquid cooling loop 2; the electromagnetic valve 8 is connected between a water outlet of a hot water channel of the waste heat utilization heat exchanger 5 and a water outlet of the heat dissipation water tank 6, and the first water pump 9 is connected between a water outlet of the heat dissipation water tank 6 and a water inlet of a water cavity of the fuel cell engine 4.
And a second water pump 14, a PCT liquid heater 13 and a plurality of radiator groups 11 are sequentially connected to the warm air system liquid loop 1 between the water outlet and the water inlet of the cold water channel of the waste heat utilization heat exchanger 5.
The working process of the integrated thermal management system of the fuel cell passenger car in the embodiment comprises the following two stages:
1. fuel cell engine start-up phase
The fuel cell engine 4 is started, the engine is gradually heated, and no waste heat is utilized in the stage. The electric three-way valve 7 is in a one-way flowing state, the electromagnetic valve 8 is in a closed state, and a warm air system in the carriage generates heat through the PTC liquid heater 13 to achieve heating.
In the fuel cell engine at the stage, the PTC liquid heater in the fuel cell engine is adopted for assisting in temperature rise, and the incremental PID algorithm is adopted to determine the power control signal of the PTC liquid heater in the fuel cell engine.
2. Stable operation stage of fuel cell engine under non-low temperature working condition
The problem of waste heat utilization is not needed to be considered in the stage, heat generated by the fuel cell engine is discharged through the heat dissipation water tank 6, under the working condition, the electromagnetic valve 8 is closed, the electric three-way valve is in a one-way conduction state, high-temperature liquid completely flows to the heat dissipation water tank 6, the controller realizes temperature control by adjusting the heat dissipation fans of the first water pump 9 and the heat dissipation water tank 6, the liquid temperature at the water inlet of the fuel cell engine 4 pile is controlled to be 60 +/-0.5 ℃, and the liquid temperature at the water outlet of the fuel cell engine 4 pile is controlled to be 70 +/-0.5 ℃.
Under this operating mode, first water pump 9 mainly reflects in making everywhere temperature tend to balance in the system to the influence of radiating effect, and main measurement index is whether can be with pile inlet outlet temperature control in the required difference in temperature scope, so according to pile inlet outlet department liquid difference in temperature, establish the water pump into high, well, low three grades, according to the bench test, obtains the concrete rotational speed of water pump motor that every gear corresponds.
Under the working condition, the heat dissipation capacity of the heat dissipation system mainly depends on the air volume of a heat dissipation fan of a heat dissipation water tank 6, the liquid temperature Tin at the water inlet of the galvanic pile is taken as a control target, a Fuzzy PID algorithm is adopted according to the deviation of the actual temperature and the expected temperature, three correction parameters Kp, Ki and Kd are adjusted online in real time by using a Fuzzy rule, a heat dissipation fan control signal (PWM) is calculated, the air volume is automatically adjusted, and the system is ensured to stably run under the expected working condition.
3. Stable operation stage of fuel cell engine under low temperature working condition
The working condition mainly refers to a low-temperature environment, and heating equipment in the vehicle is in an open state. At this time, the electromagnetic valve 8 is opened, the electric three-way valve 7 is gradually opened, and according to the actual working condition, the flow dividing mode is changed or the flow is changed to be only conducted to the waste heat utilization heat exchanger 5. The high-temperature liquid transfers heat to the liquid loop 1 of the warm air system in the waste heat utilization heat exchanger 5, and the heat is conveyed to each radiator group 11 under the driving of the second water pump 14, so that heating in the carriage is realized. At this stage, the control system automatically adjusts the opening of the electric three-way valve 7 and the flow direction of the liquid according to the temperature of the fuel cell engine 4 and the temperature setting of the warm air system, and under the condition that the fuel cell engine 4 is at the optimal temperature point, the maximization of the waste heat utilization rate is realized. Meanwhile, under the condition that the waste heat cannot meet the heating requirement in the carriage, the PTC liquid heater 13 is turned on and adjusted to perform temperature compensation, so that the riding comfort is ensured.
Under the working condition, the regulation of the first water pump 9 is consistent with the control strategy under the non-low-temperature working condition.
Under the working condition, the electromagnetic valve 8 is opened, the electric three-way valve 7 is preferentially in a one-way conduction state, high-temperature liquid flows to the waste heat utilization heat exchanger 5, the controller monitors the liquid temperature at the water inlet and the water outlet of the galvanic pile in real time, a Fuzzy PID control algorithm is adopted, the liquid temperature Tin at the water inlet of the galvanic pile is taken as a control target, three correction parameters Kp, Ki and Kd are set online in real time by utilizing a Fuzzy rule according to the deviation of the actual temperature and the expected temperature, and the control signal of the heat radiation fan of the radiator group in the carriage is calculated.
According to the actual environment working condition, if the radiator set heat dissipation fan and the second water pump in the carriage are all at full speed, Tin is more than 65 ℃ or Tin is more than 60 ℃ after 3 minutes, the controller adjusts the electric three-way valve 7 to be in a shunt mode, part of high-temperature liquid is subjected to heat dissipation through the heat dissipation water tank 6, at the moment, the radiator set heat dissipation fan in the carriage is at full speed, the air volume of the heat dissipation fan of the heat dissipation water tank 6 is adjusted, the liquid temperature Tin at the water inlet of the electric pile is taken as a control target, a Fuzzy PID algorithm is adopted according to the deviation of the actual temperature and the expected temperature, three correction parameters Kp, Ki and Kd are set online in real time by using a Fuzzy rule, a heat dissipation fan control signal (PWM) is calculated, the air volume is automatically adjusted.
The specific principle is as follows:
the related technical content which is not detailed in the present invention is the conventional technical means or the common general knowledge in the technical field.
The above is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent structures made by the contents of the specification and the drawings are directly or indirectly applied to other related technical fields, all the same principle is within the patent protection scope of the present invention.
Claims (3)
1. An integrated thermal management system for a fuel cell passenger vehicle, comprising: comprises a warm air system liquid loop (1) of a carriage, a liquid cooling loop (2) of a fuel cell engine (4) and a waste heat utilization heat exchanger (5); the hot water channel of the waste heat utilization heat exchanger (5) is connected to the liquid cooling loop (2), and the cold water channel of the waste heat utilization heat exchanger (5) is connected to the liquid loop (1) of the warm air system.
2. The fuel cell passenger vehicle integrated thermal management system of claim 1, wherein: the liquid cooling loop (2) is also connected with an electric three-way valve (7), a heat radiation water tank (6), an electromagnetic valve (8) and a first water pump (9); the water inlet and the second water outlet of the electric three-way valve (7) are connected to the liquid cooling loop (2), the first water outlet of the electric three-way valve (7) is connected with the water inlet of the heat dissipation water tank (6), and the water outlet of the heat dissipation water tank (6) is connected to the liquid cooling loop (2); the electromagnetic valve (8) is connected between a hot water channel water outlet of the waste heat utilization heat exchanger (5) and a water outlet of the heat dissipation water tank (6), and the first water pump (9) is connected between the water outlet of the heat dissipation water tank (6) and a water cavity water inlet of the fuel cell engine (4).
3. The fuel cell passenger vehicle integrated thermal management system of claim 2, wherein: and a second water pump (14), a PTC liquid heater (13) and a plurality of radiator groups (11) are sequentially connected to the warm air system liquid loop (1) between the water outlet and the water inlet of the cold water channel of the waste heat utilization heat exchanger (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021432807.XU CN213007502U (en) | 2020-07-13 | 2020-07-13 | Integrated thermal management system of fuel cell passenger car |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021432807.XU CN213007502U (en) | 2020-07-13 | 2020-07-13 | Integrated thermal management system of fuel cell passenger car |
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| CN213007502U true CN213007502U (en) | 2021-04-20 |
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| CN202021432807.XU Active CN213007502U (en) | 2020-07-13 | 2020-07-13 | Integrated thermal management system of fuel cell passenger car |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113386530A (en) * | 2021-07-29 | 2021-09-14 | 东风商用车有限公司 | Heat management system and method of new energy automobile and automobile with heat management system |
| CN114771193A (en) * | 2022-03-16 | 2022-07-22 | 中汽创智科技有限公司 | Automobile heat management system, control method and control device |
-
2020
- 2020-07-13 CN CN202021432807.XU patent/CN213007502U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113386530A (en) * | 2021-07-29 | 2021-09-14 | 东风商用车有限公司 | Heat management system and method of new energy automobile and automobile with heat management system |
| CN114771193A (en) * | 2022-03-16 | 2022-07-22 | 中汽创智科技有限公司 | Automobile heat management system, control method and control device |
| CN114771193B (en) * | 2022-03-16 | 2024-03-08 | 中汽创智科技有限公司 | Automobile thermal management system, control method and control device |
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| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 252000 No. 006, Weisan Road, Fenghuang Industrial Park, Dongchangfu District, Liaocheng City, Shandong Province Patentee after: Parts branch of Zhongtong Bus Co.,Ltd. Address before: 252000 No. 006, Weisan Road, Fenghuang Industrial Park, Dongchangfu District, Liaocheng City, Shandong Province Patentee before: ZHONGTONG BUS HOLDING Co.,Ltd. COMPONENTS BRANCH |
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| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210517 Address after: 252000 No.6, Weisan Road, Fenghuang Industrial Park, Dongchangfu District, Liaocheng City, Shandong Province (place of business: No.17, Weisi Road, Fenghuang Industrial Park, Dongchangfu District, Liaocheng City, Shandong Province) Patentee after: Shandong Tongsheng Automobile Technology Co.,Ltd. Address before: 252000 No. 006, Weisan Road, Fenghuang Industrial Park, Dongchangfu District, Liaocheng City, Shandong Province Patentee before: Parts branch of Zhongtong Bus Co.,Ltd. |
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| TR01 | Transfer of patent right |