CN216054825U - Water heat management test system for fuel cell - Google Patents
Water heat management test system for fuel cell Download PDFInfo
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- CN216054825U CN216054825U CN202122546481.4U CN202122546481U CN216054825U CN 216054825 U CN216054825 U CN 216054825U CN 202122546481 U CN202122546481 U CN 202122546481U CN 216054825 U CN216054825 U CN 216054825U
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
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Abstract
The utility model provides a fuel cell water heat management test system, comprising: the throttle valve group, the flow detection subsystem, the pressure detection subsystem, the simulation galvanic pile, the intercooler, the PTC water heating heater and the heat exchanger are all connected with the control unit; the throttle valve group is respectively connected with the intercooler and the simulation galvanic pile; the pressure detection subsystem is respectively connected with the throttle valve group, the PTC water heating heater, the intercooler and the simulation electric pile; the flow detection subsystem is respectively connected with the simulation electric pile, the intercooler, the PTC water heating heater and the heat exchanger. The utility model can accurately simulate the pressure loss caused by the cooling water respectively flowing through the inner pipelines of the electric pile, the PTC and the intercooler, accurately evaluate the flow and the lift of the water pump model selection, and accurately test and evaluate the control strategy and the control software of the fuel cell water heat management system.
Description
Technical Field
The utility model relates to the technical field of fuel cells, in particular to a fuel cell water heat management test system.
Background
Fuel cell test platforms are important devices in fuel cell technology that can be used to test and evaluate the performance of fuel cells. In order to dissipate heat of the fuel cell, a cooling water is generally used to take away the heat and dissipate the heat through an external cooling device. Therefore, when the performance of the fuel cell is tested and evaluated, the water heat exchange condition in the working process of the fuel cell needs to be simulated by the water heat management test system of the fuel cell. However, the existing fuel cell water heat management test system has the following problems:
1. the pressure loss caused by the cooling water flowing through the inner pipeline of the galvanic pile cannot be accurately simulated.
2. It is impossible to accurately simulate the pressure loss caused by the flow of the cooling water through the PTC inner tube.
3. The heat dissipation demand of unable accurate simulation intercooler and the loss of pressure that cooling water caused through intercooler inner tube way.
4. Two important parameters of the water pump model selection of the fuel cell hydrothermal management test system, namely the flow and the lift, cannot be accurately evaluated.
5. The performance of the fuel cell water heat management system cannot be accurately evaluated, so that the control strategy and control software of the fuel cell water heat management system cannot be accurately tested and evaluated.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a fuel cell water heat management test system, which is used for accurately simulating pressure loss caused by cooling water flowing through internal pipelines of a galvanic pile, a PTC (positive temperature coefficient) and an intercooler respectively, accurately evaluating the flow and the lift of water pump model selection and accurately testing and evaluating a control strategy and control software of a fuel cell water heat management system.
The utility model provides a fuel cell water heat management test system, comprising: the system comprises a control unit, and a throttle valve group, a flow detection subsystem, a pressure detection subsystem, a simulation galvanic pile, an intercooler, a PTC water heating heater and a heat exchanger which are all connected with the control unit; the throttle valve group is respectively connected with the intercooler and the simulation electric pile; the pressure detection subsystem is respectively connected with the throttle valve group, the PTC water heating heater, the intercooler and the simulation electric pile; the flow detection subsystem is respectively connected with the simulation electric pile, the intercooler, the PTC water heating heater and the heat exchanger; the pressure detection subsystem is used for detecting first pressure values corresponding to each throttle valve in the throttle valve group, the PTC water heating heater, the intercooler and the simulation electric pile and sending the first pressure values to the control unit; the control unit is used for receiving the pressure value detected by the pressure detection subsystem and controlling the opening of each throttle valve in the throttle valve group; the throttle valve group is used for adjusting the opening of each throttle valve under the control of the control unit; the flow detection subsystem is used for respectively detecting the cooling water flow values of the branches where the simulation electric pile, the intercooler, the PTC water heating heater and the heat exchanger are located and sending the flow values to the control unit; the control unit is also used for receiving the flow value and respectively controlling the working states of the flow detection subsystem, the simulation electric pile, the intercooler, the PTC water heating heater and the heat exchanger.
In one possible implementation, the system further comprises an expansion water kettle and a cooling water pump connected with the control unit; the cooling water pump is respectively connected with the pressure detection subsystem and the throttle valve group; the water inlet end of the cooling water pump is connected with the water outlet end of the expansion kettle; the cooling water pump is used for introducing cooling water of the expansion kettle into the system; the pressure detection subsystem is also used for detecting a second pressure value corresponding to the cooling water pump and sending the second pressure value to the control unit; the throttle valve group is also used for adjusting the opening of each throttle valve under the control of the control unit so as to adjust the second cooling water flow corresponding to the cooling water pump; the control unit is also used for controlling the working state of the cooling water pump.
In one possible implementation, the throttle valve set includes a first throttle valve connected to the control unit; the pressure detection subsystem comprises a first pressure sensor and a second pressure sensor which are connected with the control unit; the first throttling valve is respectively connected with the water outlet end of the cooling water pump and the water inlet end of the simulation electric pile; the first pressure sensor is positioned on a pipeline between the water outlet end of the cooling water pump and the first throttling valve; the second pressure sensor is connected with the water outlet end of the simulation electric pile; the first pressure sensor is used for detecting the water inlet pressure value of the first throttling valve and sending the water inlet pressure value of the first throttling valve to the control unit; the second pressure sensor is used for detecting the effluent pressure value of the simulation galvanic pile and sending the effluent pressure value of the simulation galvanic pile to the control unit; the control unit is used for receiving the water inlet pressure value of the first throttle valve and controlling the opening of the first throttle valve; the control unit is further used for receiving the water outlet pressure value of the simulation galvanic pile and calculating the pressure loss caused by the fact that cooling water flows through the inner pipeline of the simulation galvanic pile according to the water inlet pressure value of the first throttling valve and the water outlet pressure value of the simulation galvanic pile.
In one possible implementation, the throttle valve set further comprises a second throttle valve connected with the control unit; the second throttle valve is connected with the water outlet end of the intercooler and the water inlet end of the cooling water pump; the pressure detection subsystem comprises a third pressure sensor connected with the control unit; the third pressure sensor is positioned on a pipeline between the second throttling valve and the water inlet end of the cooling water pump; the third pressure sensor is used for detecting the water outlet pressure value of the second throttling valve and sending the water outlet pressure value of the second throttling valve to the control unit; the control unit is used for receiving the water outlet pressure value of the second throttle valve and controlling the opening of the second throttle valve; the control unit is further used for calculating pressure loss caused by the fact that cooling water flows through an internal pipeline of the intercooler according to the water outlet pressure value of the simulation electric pile and the water outlet pressure value of the second throttling valve.
In one possible implementation, the flow detection subsystem includes a first turbine flow meter, a second turbine flow meter, and a third turbine flow meter connected to the control unit; the first turbine flowmeter is respectively connected with the water outlet end of the simulation electric pile, the water inlet end of the intercooler and the water inlet end of the heat exchanger; the flow detection subsystem comprises a second turbine flow meter connected to the control unit; the second turbine flowmeter is respectively connected with the water outlet end of the first turbine flowmeter and the water inlet end of the PTC water heating heater; the third turbine flowmeter is respectively connected with the water outlet end of the first turbine flowmeter and the water inlet end of the intercooler; the first turbine flowmeter is used for detecting the effluent flow value of the simulation galvanic pile and sending the effluent flow value of the simulation galvanic pile to the control unit; the second turbine flowmeter is used for detecting the water inlet flow value of the PTC water heating heater and sending the water inlet flow value of the PTC water heating heater to the control unit; the third turbine flowmeter is used for detecting the water inlet flow value of the intercooler and sending the water inlet flow value of the intercooler to the control unit; the control unit is used for receiving the water outlet flow value of the simulation galvanic pile, the water inlet flow value of the PTC water heating heater and the water inlet flow value of the intercooler and respectively controlling the working states of the first turbine flowmeter, the second turbine flowmeter and the third turbine flowmeter.
In one possible implementation, the system further comprises a particulate filter; and the water inlet end of the particle filter is respectively connected with the water outlet end of the first turbine flowmeter, the water inlet end of the second turbine flowmeter and the water inlet end of the third turbine flowmeter, and the water outlet end of the particle filter is connected with the water inlet end of the heat exchanger.
In one possible implementation, the system further comprises an upper computer connected with the control unit; the upper computer is used for receiving an operation instruction input by a user and sending the operation instruction input by the user to the control unit; the control unit is used for sending the received data to the upper computer so that the upper computer displays and records the data.
In one possible implementation, the system further includes a temperature detection subsystem coupled to the control unit; the temperature detection subsystem is respectively connected with the throttle valve group, the cooling water pump, the PTC water heating heater, the intercooler and the simulation electric pile; the temperature detection subsystem is used for detecting temperature values corresponding to each throttle valve in the throttle valve group, the cooling water pump, the PTC water heating heater, the intercooler and the simulation electric pile and sending the temperature values to the control unit; the control unit is used for receiving temperature values collected by the temperature detection subsystem and controlling the working states of the cooling water pump, the PTC water heating heater, the intercooler and the simulation electric pile.
In one possible implementation, the system further comprises a cooling water tower and a circulating water pump connected with the control unit, the temperature detection subsystem and the heat exchanger; the circulating water pump is connected with the water outlet end of the cooling water tower; the circulating water pump is used for introducing cooling water of a cooling water tower into the heat exchanger to cool the heat exchanger; the control unit is also used for controlling the working state of the circulating water pump.
In one possible implementation, the temperature detection subsystem includes a first temperature sensor, a second temperature sensor, a third temperature sensor, a fourth temperature sensor and a fifth temperature sensor connected to the control unit; the first temperature sensor is positioned on a pipeline between the water outlet end of the cooling water pump and the first throttling valve; the second temperature sensor is positioned on a pipeline between the water outlet end of the simulation electric pile and the water inlet end of the first turbine flowmeter; the third temperature sensor is positioned on a pipeline between the water outlet end of the circulating water pump and the water inlet end of the heat exchanger; the fourth temperature sensor is positioned on a pipeline between the water outlet end of the heat exchanger and the water inlet end of the cooling water tower; the first temperature sensor is used for detecting the water outlet temperature value of the cooling water pump and sending the water outlet temperature value of the cooling water pump to the control unit; the second temperature sensor is used for detecting the water outlet temperature value of the simulation electric pile and sending the water outlet temperature value of the simulation electric pile to the control unit; the third temperature sensor is used for detecting the water outlet temperature value of the circulating water pump and sending the water outlet temperature value of the circulating water pump to the control unit; the fourth temperature sensor is used for detecting the water outlet temperature value of the cooling water tower and sending the water outlet temperature value of the cooling water tower to the control unit; the fifth temperature sensor is used for detecting the water inlet temperature value of the cooling water pump and sending the water inlet temperature value of the cooling water pump to the control unit; the control unit is further used for receiving the water outlet temperature value of the cooling water pump, the water outlet temperature value of the simulation galvanic pile, the water outlet temperature value of the circulating water pump, the water outlet temperature value of the cooling water tower and the water inlet temperature value of the cooling water pump, and controlling the working states of the first heater of the simulation galvanic pile, the second heater of the intercooler, the heat exchanger and the PTC water heating heater.
The utility model provides a fuel cell water heat management test system, comprising: the throttle valve group, the flow detection subsystem, the pressure detection subsystem, the simulation galvanic pile, the intercooler, the PTC water heating heater and the heat exchanger are all connected with the control unit; the throttle valve group is respectively connected with the intercooler and the simulation galvanic pile; the pressure detection subsystem is respectively connected with the throttle valve group, the PTC water heating heater, the intercooler and the simulation electric pile; the flow detection subsystem is respectively connected with the simulation electric pile, the intercooler, the PTC water heating heater and the heat exchanger. By adopting the technology, the pressure values of the throttling valve group, the simulation electric pile, the intercooler and the PTC water heating heater detected by the pressure detection subsystem are received by the control unit through pressure, and the opening of the throttling valve is controlled according to the detected pressure value of the pressure detection subsystem, so that the pressure loss caused by the fact that cooling water respectively flows through the electric pile, the PTC and the intercooler; the control unit monitors and simulates the cooling water flow values of the branches where the electric pile, the intercooler, the PTC water heating heater and the heat exchanger are located, so that the flow and the lift of the water pump model selection can be accurately evaluated; the control unit monitors and controls the working state of each power component, and the control strategy and control software of the fuel cell water thermal management system can be accurately tested and evaluated.
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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a fuel cell hydrothermal management test system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another fuel cell hydrothermal management test system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another fuel cell hydrothermal management test system according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another fuel cell hydrothermal management test system according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a partial structure of another fuel cell hydrothermal management test system according to an embodiment of the present invention;
fig. 6 is a schematic partial structural diagram of another fuel cell hydrothermal management test system according to an embodiment of the present invention;
fig. 7 is a partial structural schematic diagram of another fuel cell hydrothermal management test system according to an embodiment of the present invention.
Icon: 100-a throttle valve group; 200-a flow detection subsystem; 300-a pressure detection subsystem; 400-temperature detection subsystem; 1-a cooling water pump; 2-a first throttle valve; 3-simulating a galvanic pile; 4-a first heater; 5-a first turbine flow meter; 6-thermostat; 7-a second turbine flow meter; 8-PTC water heating heater; 9-a particulate filter; 10-a second throttle valve; 11-an intercooler; 12-a second heater; 13-a third turbine flow meter; 14-an expansion kettle; 15-a drain valve; 16-a cooling water tower; 17-a circulating water pump; 18-a heat exchanger; 19-a first pressure sensor; 20-a first temperature sensor; 21-a second pressure sensor; 22-a second temperature sensor; 23-a third temperature sensor; 24-a fourth temperature sensor; 25-a third pressure sensor; 26-a fifth temperature sensor; 27-a control unit; 28-an upper computer.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. 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.
Fuel cell test platforms are important devices in fuel cell technology that can be used to test and evaluate the performance of fuel cells. In order to dissipate heat of the fuel cell, a cooling water is generally used to take away the heat and dissipate the heat through an external cooling device. Therefore, when the performance of the fuel cell is tested and evaluated, the water heat exchange condition in the working process of the fuel cell needs to be simulated by the water heat management test system of the fuel cell. However, the existing fuel cell water heat management test system has the following problems: the pressure loss caused by the cooling water flowing through the inner pipeline of the galvanic pile cannot be accurately simulated; pressure loss caused by cooling water flowing through the PTC inner pipeline cannot be accurately simulated; the heat dissipation requirement of the intercooler and the pressure loss caused by the cooling water flowing through the inner pipeline of the intercooler can not be accurately simulated; two important parameters, namely the flow and the lift of the water pump model selection of the fuel cell hydrothermal management test system cannot be accurately evaluated; the performance of the fuel cell water heat management system cannot be accurately evaluated, so that the control strategy and control software of the fuel cell water heat management system cannot be accurately tested and evaluated.
Based on the above, the fuel cell water heat management test system provided by the embodiment of the utility model can accurately simulate the pressure loss caused by the cooling water flowing through the internal pipelines of the galvanic pile, the PTC and the intercooler respectively, accurately estimate the flow and the lift of the water pump model selection, and accurately test and estimate the control strategy and the control software of the fuel cell water heat management system.
For the understanding of the present embodiment, a detailed description will be given to a fuel cell water heat management test system disclosed in the present embodiment.
An embodiment of the present invention provides a fuel cell water heat management test system, and as shown in fig. 1, the system includes: the control unit 27, and a throttle valve group 100, a flow detection subsystem 200, a pressure detection subsystem 300, the simulation electric pile 3, the intercooler 11, the PTC water heating heater 8 and the heat exchanger 18 which are all connected with the control unit 27;
the throttle valve group 100 is respectively connected with the intercooler 11 and the simulation electric pile 3; the pressure detection subsystem 300 is respectively connected with the throttle valve group 100, the PTC water heating heater 8, the intercooler 11 and the simulation electric pile 3; the flow detection subsystem 200 is respectively connected with the simulation electric pile 3, the intercooler 11, the PTC water heating heater 8 and the heat exchanger 18; the pressure detection subsystem 300 is used for detecting a first pressure value corresponding to each throttle valve in the throttle valve group 100, the PTC water-heating heater 8, the intercooler 11 and the simulation electric pile 3, and sending the first pressure value to the control unit 27; the control unit 27 is configured to receive the pressure value detected by the pressure detection subsystem 300 and control the opening of each throttle valve in the throttle valve group 100; the throttle valve group 100 is used for adjusting the opening of each throttle valve under the control of the control unit 27; the flow detection subsystem 200 is used for respectively detecting the cooling water flow values of the branches where the simulation electric pile 3, the intercooler 11, the PTC water heating device 8 and the heat exchanger 18 are located, and sending the flow values to the control unit 27; the control unit 27 is further configured to receive the flow value and control the working states of the flow detection subsystem 200, the simulation stack 3, the intercooler 11, the PTC water heater 8, and the heat exchanger 18, respectively.
According to the fuel cell water heat management test system provided by the embodiment of the utility model, the pressure values of the throttling valve group, the simulation electric pile, the intercooler and the PTC water heating heater detected by the pressure detection subsystem are received through the control unit, and the opening of the throttling valve is controlled according to the detected pressure value detected by the pressure detection subsystem, so that the pressure loss caused by the fact that cooling water flows through the internal pipelines of the electric pile, the PTC and the intercooler respectively can be accurately simulated; the control unit monitors and simulates the cooling water flow values of the branches where the electric pile, the intercooler, the PTC water heating heater and the heat exchanger are located, so that the flow and the lift of the water pump model selection can be accurately evaluated; the control unit monitors and controls the working state of each power component, and the control strategy and control software of the fuel cell water thermal management system can be accurately tested and evaluated.
On the basis of the above fuel cell water heat management test system, in order to facilitate operation, another fuel cell water heat management test system is further provided in the embodiment of the present invention, as shown in fig. 2, the system further includes an expansion water tank 14 and a cooling water pump 1 connected to a control unit 27; the cooling water pump 1 is respectively connected with the pressure detection subsystem 300 and the throttle valve group 100; the water inlet end of the cooling water pump 1 is connected with the water outlet end of the expansion kettle 14; the cooling water pump 1 is used for introducing cooling water of the expansion water kettle 14 into the system; the pressure detection subsystem 300 is further configured to detect a second pressure value corresponding to the cooling water pump 1, and send the second pressure value to the control unit 27; the throttle valve group 100 is further configured to adjust an opening of each throttle valve under the control of the control unit 27 to adjust a second cooling water flow rate corresponding to the cooling water pump 1; the control unit 27 is also used to control the operating state of the cooling water pump 1.
On the basis of the above fuel cell water heat management test system, in order to facilitate controlling the working states of the cooling water pump 1, the PTC water-heating heater 8, the intercooler 11 and the simulation stack 3 according to the temperature of the cooling water, the embodiment of the present invention further provides another fuel cell water heat management test system, as shown in fig. 3, the system may further include a temperature detection subsystem 400 connected to the control unit 27; the temperature detection subsystem 400 is respectively connected with the throttle valve group 100, the cooling water pump 1, the PTC water heating heater 8, the intercooler 11 and the simulation electric pile 3; the temperature detection subsystem 400 is used for detecting temperature values corresponding to each throttle valve in the throttle valve group 100, the cooling water pump 1, the PTC water heating heater 8, the intercooler 11 and the simulation electric pile 3, and sending the temperature values to the control unit 27; the control unit 27 is configured to receive the temperature value collected by the temperature detection subsystem 400, and control the working states of the cooling water pump 1, the PTC water heater 8, the intercooler 11, and the simulation stack 3.
On the basis of the above fuel cell water heat management test system, in order to facilitate cooling of the heat exchanger 18, another fuel cell water heat management test system is provided in the embodiments of the present invention, as shown in fig. 4, the system may further include a cooling water tower 16 and a water circulating pump 17 connected to the control unit 27, the temperature detection subsystem 400, and the heat exchanger 18; the circulating water pump 17 is connected with the water outlet end of the cooling water tower 16; the circulating water pump 17 is used for introducing cooling water of the cooling water tower 16 into the interior of the heat exchanger 18 to cool the heat exchanger 18; the control unit 27 is also used to control the operating state of the circulating water pump 17.
In a practical application scenario, in order to facilitate the operation, another fuel cell water thermal management test system is further provided in the embodiment of the present invention, referring to fig. 5 to 7, the throttle valve set 100 may include a first throttle valve 2 and a second throttle valve 10 connected to a control unit 27; the first throttle valve 2 is respectively connected with the water outlet end of the cooling water pump 1 and the water inlet end of the simulation electric pile 3; the second throttle valve 10 is connected with the water outlet end of the intercooler 11 and the water inlet end of the cooling water pump 1.
Referring to fig. 5-7, the pressure detection subsystem 300 may include a first pressure sensor 19, a second pressure sensor 21, and a third pressure sensor 25 connected to a control unit 27; the first pressure sensor 19 is positioned on a pipeline between the water outlet end of the cooling water pump 1 and the first throttle valve 2; the second pressure sensor 21 is connected with the water outlet end of the simulation galvanic pile 3; the third pressure sensor 25 is positioned on a pipeline between the second throttle valve 10 and the water inlet end of the cooling water pump 1;
the first pressure sensor 19 is used for detecting the water inlet pressure value of the first throttle valve 2 and sending the water inlet pressure value of the first throttle valve 2 to the control unit 27; the control unit 27 is used for receiving the water inlet pressure value of the first throttle valve 2 and controlling the opening degree of the first throttle valve 2; the second pressure sensor 21 is configured to detect a water outlet pressure value of the simulation stack 3, and send the water outlet pressure value of the simulation stack 3 to the control unit 27; the control unit is also used for receiving the water outlet pressure value of the simulation galvanic pile 3 and calculating the pressure loss caused by the cooling water flowing through the internal pipeline of the simulation galvanic pile according to the water inlet pressure value of the first throttle valve 2 and the water outlet pressure value of the simulation galvanic pile 3; the third pressure sensor 25 is configured to detect a discharge water pressure value of the second throttle valve 10, and send the discharge water pressure value of the second throttle valve 10 to the control unit 27; the control unit 27 is used for receiving the effluent water pressure value of the second throttle valve 10 and controlling the opening of the second throttle valve 10; the control unit 27 is further configured to calculate a pressure loss caused by the cooling water flowing through the internal pipe of the intercooler 11 according to the water outlet pressure value of the simulation stack 3 and the water outlet pressure value of the second throttle valve 10.
Referring to fig. 5 to 7, the flow detection subsystem 200 may include a first turbine flowmeter 5, a second turbine flowmeter 7, and a third turbine flowmeter 13 connected to the control unit 27; the first turbine flowmeter 5 is respectively connected with the water outlet end of the simulation electric pile 3, the water inlet end of the intercooler 11 and the water inlet end of the heat exchanger 18; the second turbine flowmeter 7 is respectively connected with the water outlet end of the first turbine flowmeter 5 and the water inlet end of the PTC water heating heater 8; the third turbine flowmeter 13 is respectively connected with the water outlet end of the first turbine flowmeter 5 and the water inlet end of the intercooler 11;
the first turbine flowmeter 5 is used for detecting the effluent flow value of the simulation galvanic pile 3 and sending the effluent flow value of the simulation galvanic pile 3 to the control unit 27; the second turbine flowmeter 7 is used for detecting the water inlet flow rate value of the PTC water heater 8 and sending the water inlet flow rate value of the PTC water heater 8 to the control unit 27; the third turbine flowmeter 13 is used for detecting the water inlet flow value of the intercooler 11 and sending the water inlet flow value of the intercooler 11 to the control unit 27; the control unit 27 is used for receiving the water outlet flow value of the simulation electric pile 3, the water inlet flow value of the PTC water heating heater 8 and the water inlet flow value of the intercooler 11 and respectively controlling the working states of the first turbine flowmeter 5, the second turbine flowmeter 7 and the third turbine flowmeter 13.
Referring to fig. 5 to 7, the temperature detection subsystem 400 includes a first temperature sensor 20, a second temperature sensor 22 and a fifth temperature sensor 26 connected to the control unit 27; the first temperature sensor 20 is positioned on a pipeline between the water outlet end of the cooling water pump 1 and the first throttle valve 2; the second temperature sensor 22 is positioned on a pipeline between the water outlet end of the simulation galvanic pile 3 and the water inlet end of the first turbine flowmeter 5;
the first temperature sensor 20 is configured to detect a water outlet temperature value of the cooling water pump 1, and send the water outlet temperature value of the cooling water pump 1 to the control unit 27; the second temperature sensor 22 is configured to detect an effluent temperature value of the simulation cell stack 3, and send the effluent temperature value of the simulation cell stack 3 to the control unit 27; the fifth temperature sensor 26 is configured to detect a water inlet temperature value of the cooling water pump 1, and send the water inlet temperature value of the cooling water pump 1 to the control unit 27; the control unit 27 is further configured to receive a water outlet temperature value of the cooling water pump 1, a water outlet temperature value of the simulation stack 3, and a water inlet temperature value of the cooling water pump 1, and control the operating states of the first heater 4 of the simulation stack 3, the second heater 12 of the intercooler 11, the heat exchanger 18, and the PTC water heater 8. The first heater 4 and the second heater 12 can start the heating function in a PWM manner according to the power requirement and adjust the heating temperature in real time.
In addition, in order to improve the simulation degree of the system, the heating power of the first heater 4 can be set based on the heating power of the real galvanic pile, so that the working state of the simulated galvanic pile 3 is consistent with the working state of the real galvanic pile; the opening degree of the first throttle valve 2 can be set based on the internal flow resistance of the real galvanic pile cooling flow channel, and the internal flow resistance of the real galvanic pile cooling flow channel is simulated through the opening degree of the first throttle valve 2; the heating power of the second heater 12 can be set based on the heating power of the real intercooler, so that the working state of the intercooler 11 is consistent with the working state of the real intercooler; the opening degree of the second throttle valve 10 can be set based on the internal flow resistance of the real intercooler cooling channel, and the internal flow resistance of the real intercooler cooling channel is simulated through the opening degree of the second throttle valve 10. Since the lift of the cooling water pump 1 is determined by the flow resistance, the pressure sensor, the throttle valve and the flow meter in the system can also provide reliable reference data for determining the flow parameter and the lift parameter of the cooling water pump 1.
Referring to fig. 6 and 7, the temperature detection subsystem may further include a third temperature sensor 23 and a fourth temperature sensor 24 connected to the control unit 27; the third temperature sensor 23 is positioned on a pipeline between the water outlet end of the circulating water pump 17 and the water inlet end of the heat exchanger 18; the fourth temperature sensor 24 is located on the conduit between the water outlet end of the heat exchanger 18 and the water inlet end of the cooling tower 16;
the third temperature sensor 23 is configured to detect a water outlet temperature value of the water circulation pump 17, and send the water outlet temperature value of the water circulation pump 17 to the control unit 27; the fourth temperature sensor 24 is configured to detect an outlet temperature value of the cooling tower 16, and send the outlet temperature value of the cooling tower 16 to the control unit 27; the control unit 27 is further configured to receive a water outlet temperature value of the circulating water pump 17 and a water outlet temperature value of the cooling water tower 16, and control an operating state of the heat exchanger 18.
Referring to fig. 6, the system may further include a particulate filter 9; the water inlet end of the particle filter 9 is respectively connected with the water outlet end of the first turbine flowmeter 5, the water inlet end of the second turbine flowmeter 7 and the water inlet end of the third turbine flowmeter 13, and the water outlet end of the particle filter 9 is connected with the water inlet end of the heat exchanger 18; the particle filter 9 can filter particles when the particles fall off in the pipeline, so that the cleanliness of the cooling liquid in the pipeline of the whole system is further ensured.
Referring to fig. 6, the system may also include a thermostat 6; the thermostat 6 is provided with a water inlet end and two water outlet ends, the water inlet end of the thermostat 6 is respectively connected with the water outlet end of the first turbine flowmeter 5 and the water outlet end of the third turbine flowmeter 13, one water outlet end of the thermostat 6 is connected with the water inlet end of the second turbine flowmeter 7, and the other water outlet end of the thermostat 6 is connected with the water inlet end of the particle filter 9; the thermostat 6 is used for automatically adjusting the opening of the thermostat according to the temperature change of cooling water, and further realizes the switching of large and small circulation.
Referring to fig. 6 and 7, the system may further include a drain valve 15 connected to the control unit; the drain valve 15 can be installed between the second temperature sensor 22 and the water outlet end of the analog electric pile 3; the control unit 27 is also used for controlling the working state of the water discharge valve 15; when the system needs to replace the cooling liquid, the control unit 27 controls the drainage valve 15 to be opened, and the waste cooling liquid can be smoothly discharged to the outside of the system through the drainage valve 15; when new cooling liquid needs to be filled, the control unit 27 controls the drainage valve 15 to be closed, new cooling liquid is filled into the expansion kettle 14, and after filling is completed, the control unit 27 controls the cooling water pump 1 to be started to discharge bubbles to the system. The installation position of the drain valve 15 may be adjusted according to actual needs, and is not limited.
In order to realize cooling, the circulation branch formed by the cooling water tower 16, the circulating water pump 17 and the heat exchanger 18 may be replaced by a cooling fan, and the specific type and the specific replacement mode of the cooling fan may be selected according to actual needs, which is not limited.
As shown in fig. 7, the system further includes an upper computer 28 connected to the control unit 27; the upper computer 28 is used for receiving an operation instruction input by a user and sending the operation instruction input by the user to the control unit 27; the control unit 27 is configured to send the received data to the upper computer 28, so that the upper computer 28 displays and records the data.
In an actual application process, the control unit 27 may be an FCU controller, or may also be an NI board, which may be determined by itself according to actual needs, and is not limited thereto.
The temperature sensor, the pressure sensor, the turbine flowmeter, and other detection means may be connected to the control unit 27 through an electrical interface; the specific type of the interface can be determined by itself according to actual needs, and is not limited.
The control principle of the system mainly comprises the following steps: in the operation process of the system, the control unit 27 acquires data (such as temperature data, pressure data, flow data and the like) detected by detection components (such as a temperature sensor, a pressure sensor, a turbine flowmeter and the like) in real time and sends the data to the upper computer, and the upper computer 28 displays and records the data; the user inputs a corresponding operation command (such as a command for adjusting the opening degree of the throttle valve) through the upper computer 28, the upper computer 28 sends the operation command of the user to the control unit 27 through a CAN communication mode or an ON/OFF PWM mode, and the control unit 27 sends a control signal (such as a signal for controlling the opening degree of the throttle valve) to an electrical component (such as a throttle valve, a heater and the like), so as to control the electrical component receiving the control signal to change the working state (such as starting, closing and the like) of the electrical component.
When the system is used for carrying out the model selection test on the hydrothermal management part (namely the part to be tested), all parts except the part to be tested need to be preset, and then the test can be started. In the testing process, the to-be-tested part can be a cooling water pump 1, a thermostat 6 and the like, and can be determined according to actual needs. According to the variation of the opening degree of the thermostat 6, the system mainly involves the following three cycles:
(1) the cooling water pump 1 → the first throttle valve 2 → the simulated electric pile 3 → the intercooler 11 → the second throttle valve 10 → the cooling water pump 1;
(2) the cooling water pump 1 → the first throttle valve 2 → the simulated electric pile 3 → the thermostat 6 → the PTC water heater 8 → the cooling water pump 1;
(3) the cooling water pump 1 → the first throttle valve 2 → the simulated stack 3 → the thermostat 6 → the particulate filter 9 → the heat exchanger 18 → the cooling water pump 1.
After the types of the real electric pile and the hydrothermal management component are determined, in order to further ensure that the real electric pile is not damaged by high temperature and high pressure in the actual use process, the system can be used for simulating the actual heating power of the real electric pile, and dangerous working conditions such as electric pile burnout and the like caused by high temperature caused by sudden opening of a pipeline (such as loosening of a clamp) can be simulated through the system, so that the performance of the hydrothermal management system can be accurately evaluated through the system, and hydrothermal management control strategies and software equipment can be tested and verified.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A fuel cell hydrothermal management test system, comprising: the system comprises a control unit, and a throttle valve group, a flow detection subsystem, a pressure detection subsystem, a simulation galvanic pile, an intercooler, a PTC water heating heater and a heat exchanger which are all connected with the control unit;
the throttle valve group is respectively connected with the intercooler and the simulation electric pile; the pressure detection subsystem is respectively connected with the throttle valve group, the PTC water heating heater, the intercooler and the simulation electric pile; the flow detection subsystem is respectively connected with the simulation electric pile, the intercooler, the PTC water heating heater and the heat exchanger;
the pressure detection subsystem is used for detecting first pressure values corresponding to each throttle valve in the throttle valve group, the PTC water heating heater, the intercooler and the simulation electric pile and sending the first pressure values to the control unit; the control unit is used for receiving the pressure value detected by the pressure detection subsystem and controlling the opening of each throttle valve in the throttle valve group; the throttle valve group is used for adjusting the opening of each throttle valve under the control of the control unit; the flow detection subsystem is used for respectively detecting the cooling water flow values of the branches where the simulation electric pile, the intercooler, the PTC water heating heater and the heat exchanger are located and sending the flow values to the control unit; the control unit is also used for receiving the flow value and respectively controlling the working states of the flow detection subsystem, the simulation electric pile, the intercooler, the PTC water heating heater and the heat exchanger.
2. The fuel cell hydrothermal management test system according to claim 1, further comprising an expansion tank and a cooling water pump connected to the control unit; the cooling water pump is respectively connected with the pressure detection subsystem and the throttle valve group; the water inlet end of the cooling water pump is connected with the water outlet end of the expansion kettle;
the cooling water pump is used for introducing cooling water of the expansion kettle into the system; the pressure detection subsystem is also used for detecting a second pressure value corresponding to the cooling water pump and sending the second pressure value to the control unit; the throttle valve group is also used for adjusting the opening of each throttle valve under the control of the control unit so as to adjust the second cooling water flow corresponding to the cooling water pump; the control unit is also used for controlling the working state of the cooling water pump.
3. The fuel cell hydrothermal management test system of claim 2, wherein the set of throttle valves includes a first throttle valve connected with the control unit; the pressure detection subsystem comprises a first pressure sensor and a second pressure sensor which are connected with the control unit; the first throttling valve is respectively connected with the water outlet end of the cooling water pump and the water inlet end of the simulation electric pile; the first pressure sensor is positioned on a pipeline between the water outlet end of the cooling water pump and the first throttling valve; the second pressure sensor is connected with the water outlet end of the simulation electric pile;
the first pressure sensor is used for detecting the water inlet pressure value of the first throttling valve and sending the water inlet pressure value of the first throttling valve to the control unit; the second pressure sensor is used for detecting the effluent pressure value of the simulation galvanic pile and sending the effluent pressure value of the simulation galvanic pile to the control unit; the control unit is used for receiving the water inlet pressure value of the first throttle valve and controlling the opening of the first throttle valve; the control unit is further used for receiving the water outlet pressure value of the simulation galvanic pile and calculating the pressure loss caused by the fact that cooling water flows through the inner pipeline of the simulation galvanic pile according to the water inlet pressure value of the first throttling valve and the water outlet pressure value of the simulation galvanic pile.
4. The fuel cell hydrothermal management test system of claim 3, wherein the set of throttle valves further comprises a second throttle valve connected to the control unit; the second throttle valve is connected with the water outlet end of the intercooler and the water inlet end of the cooling water pump; the pressure detection subsystem comprises a third pressure sensor connected with the control unit; the third pressure sensor is positioned on a pipeline between the second throttling valve and the water inlet end of the cooling water pump;
the third pressure sensor is used for detecting the water outlet pressure value of the second throttling valve and sending the water outlet pressure value of the second throttling valve to the control unit; the control unit is used for receiving the water outlet pressure value of the second throttle valve and controlling the opening of the second throttle valve; the control unit is further used for calculating pressure loss caused by the fact that cooling water flows through an internal pipeline of the intercooler according to the water outlet pressure value of the simulation electric pile and the water outlet pressure value of the second throttling valve.
5. The fuel cell hydrothermal management test system of claim 4, wherein the flow detection subsystem includes a first turbine flow meter, a second turbine flow meter, and a third turbine flow meter connected to the control unit; the first turbine flowmeter is respectively connected with the water outlet end of the simulation electric pile, the water inlet end of the intercooler and the water inlet end of the heat exchanger; the flow detection subsystem comprises a second turbine flow meter connected to the control unit; the second turbine flowmeter is respectively connected with the water outlet end of the first turbine flowmeter and the water inlet end of the PTC water heating heater; the third turbine flowmeter is respectively connected with the water outlet end of the first turbine flowmeter and the water inlet end of the intercooler;
the first turbine flowmeter is used for detecting the effluent flow value of the simulation galvanic pile and sending the effluent flow value of the simulation galvanic pile to the control unit; the second turbine flowmeter is used for detecting the water inlet flow value of the PTC water heating heater and sending the water inlet flow value of the PTC water heating heater to the control unit; the third turbine flowmeter is used for detecting the water inlet flow value of the intercooler and sending the water inlet flow value of the intercooler to the control unit; the control unit is used for receiving the water outlet flow value of the simulation galvanic pile, the water inlet flow value of the PTC water heating heater and the water inlet flow value of the intercooler and respectively controlling the working states of the first turbine flowmeter, the second turbine flowmeter and the third turbine flowmeter.
6. The fuel cell hydrothermal management test system of claim 5, further comprising a particulate filter; and the water inlet end of the particle filter is respectively connected with the water outlet end of the first turbine flowmeter, the water inlet end of the second turbine flowmeter and the water inlet end of the third turbine flowmeter, and the water outlet end of the particle filter is connected with the water inlet end of the heat exchanger.
7. The fuel cell hydrothermal management test system of claim 6, further comprising a temperature detection subsystem connected to the control unit; the temperature detection subsystem is respectively connected with the throttle valve group, the cooling water pump, the PTC water heating heater, the intercooler and the simulation electric pile;
the temperature detection subsystem is used for detecting temperature values corresponding to each throttle valve in the throttle valve group, the cooling water pump, the PTC water heating heater, the intercooler and the simulation electric pile and sending the temperature values to the control unit;
the control unit is used for receiving temperature values collected by the temperature detection subsystem and controlling the working states of the cooling water pump, the PTC water heating heater, the intercooler and the simulation electric pile.
8. The fuel cell hydrothermal management test system according to claim 7, further comprising a cooling water tower and a circulating water pump connected to the control unit, the temperature detection subsystem, and the heat exchanger; the circulating water pump is connected with the water outlet end of the cooling water tower;
the circulating water pump is used for introducing cooling water of a cooling water tower into the heat exchanger to cool the heat exchanger; the control unit is also used for controlling the working state of the circulating water pump.
9. The fuel cell hydrothermal management test system of claim 8, wherein the temperature detection subsystem includes a first temperature sensor, a second temperature sensor, a third temperature sensor, a fourth temperature sensor, and a fifth temperature sensor connected to the control unit; the first temperature sensor is positioned on a pipeline between the water outlet end of the cooling water pump and the first throttling valve; the second temperature sensor is positioned on a pipeline between the water outlet end of the simulation electric pile and the water inlet end of the first turbine flowmeter; the third temperature sensor is positioned on a pipeline between the water outlet end of the circulating water pump and the water inlet end of the heat exchanger; the fourth temperature sensor is positioned on a pipeline between the water outlet end of the heat exchanger and the water inlet end of the cooling water tower;
the first temperature sensor is used for detecting the water outlet temperature value of the cooling water pump and sending the water outlet temperature value of the cooling water pump to the control unit; the second temperature sensor is used for detecting the water outlet temperature value of the simulation electric pile and sending the water outlet temperature value of the simulation electric pile to the control unit; the third temperature sensor is used for detecting the water outlet temperature value of the circulating water pump and sending the water outlet temperature value of the circulating water pump to the control unit; the fourth temperature sensor is used for detecting the water outlet temperature value of the cooling water tower and sending the water outlet temperature value of the cooling water tower to the control unit; the fifth temperature sensor is used for detecting the water inlet temperature value of the cooling water pump and sending the water inlet temperature value of the cooling water pump to the control unit; the control unit is further used for receiving the water outlet temperature value of the cooling water pump, the water outlet temperature value of the simulation galvanic pile, the water outlet temperature value of the circulating water pump, the water outlet temperature value of the cooling water tower and the water inlet temperature value of the cooling water pump, and controlling the working states of the first heater of the simulation galvanic pile, the second heater of the intercooler, the heat exchanger and the PTC water heating heater.
10. The fuel cell hydrothermal management test system according to any one of claims 1-9, characterized in that the system further comprises an upper computer connected with the control unit; the upper computer is used for receiving an operation instruction input by a user and sending the operation instruction input by the user to the control unit; the control unit is used for sending the received data to the upper computer so that the upper computer displays and records the data.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122546481.4U CN216054825U (en) | 2021-10-22 | 2021-10-22 | Water heat management test system for fuel cell |
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| CN202122546481.4U CN216054825U (en) | 2021-10-22 | 2021-10-22 | Water heat management test system for fuel cell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117686247A (en) * | 2024-02-01 | 2024-03-12 | 中汽研新能源汽车检验中心(天津)有限公司 | Device and method for evaluating heat dissipation capacity of hydrogen fuel cell system test platform |
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2021
- 2021-10-22 CN CN202122546481.4U patent/CN216054825U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117686247A (en) * | 2024-02-01 | 2024-03-12 | 中汽研新能源汽车检验中心(天津)有限公司 | Device and method for evaluating heat dissipation capacity of hydrogen fuel cell system test platform |
| CN117686247B (en) * | 2024-02-01 | 2024-04-05 | 中汽研新能源汽车检验中心(天津)有限公司 | Device and method for evaluating heat dissipation capacity of hydrogen fuel cell system test platform |
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Effective date of registration: 20221111 Address after: No. 120, Floor 2, Building 2, Yard 9, Fengyuan Street, Daxing District, Beijing 102628 Patentee after: Beijing Yingbojie Hydrogen Technology Co.,Ltd. Patentee after: Nanjing Hydrogen Energy Technology Co.,Ltd. Patentee after: BEIJING IN-POWER NEW ENERGY Co.,Ltd. Address before: 211200 No. 9, tuanshang Road, Lishui Economic Development Zone, Lishui District, Nanjing City, Jiangsu Province Patentee before: Nanjing Hydrogen Energy Technology Co.,Ltd. Patentee before: BEIJING IN-POWER NEW ENERGY Co.,Ltd. |
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