CN111413126B - Heat accumulation experimental system and control and detection device thereof - Google Patents
Heat accumulation experimental system and control and detection device thereof Download PDFInfo
- Publication number
- CN111413126B CN111413126B CN202010290180.7A CN202010290180A CN111413126B CN 111413126 B CN111413126 B CN 111413126B CN 202010290180 A CN202010290180 A CN 202010290180A CN 111413126 B CN111413126 B CN 111413126B
- Authority
- CN
- China
- Prior art keywords
- control
- module
- heat storage
- heat
- analysis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
-
- 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
- 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
- Y02E60/14—Thermal energy storage
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention discloses a heat storage experiment system and a control and detection device thereof, which can realize control and performance detection of the heat storage system and the heat storage device in the experiment process. The device comprises a parameter measurement module group, a signal conversion module group, a calculation unit module, an analysis detection module, a storage unit module, a control module group and the like. The device can realize rapid and high-precision control and performance detection and diagnosis of various state parameters in the experiment and operation process of the heat storage system and the heat storage device with different scales and working condition parameters, and can meet the research and development and test of heat storage key components in the compressed air energy storage system.
Description
Technical Field
The invention belongs to the field of cross of heat energy storage and control, and relates to a heat storage experiment system and a control and detection device thereof.
Background
The heat storage technology is a key technology which uses a heat storage material as a medium to store solar photo-thermal energy, geothermal energy, industrial waste heat or low-grade waste heat and other heat energy and release the heat energy when needed, and aims to solve the problem that the heat energy supply and the demand are not matched in time, space or strength and improve the energy utilization rate of a system. The heat storage technology can effectively improve the comprehensive utilization level of energy, and has important application value in the fields of power grid peak regulation, solar heat utilization, industrial waste heat recovery, building energy conservation and the like.
The large-scale heat storage technology plays an important role in the fields of traditional power systems, renewable energy sources, industrial waste heat recycling and the like. However, compared with the rapid development of the demand, the development speed of the novel large-scale heat storage technology is slower. One of the main reasons is that large-period and full-power demonstration operation verification and performance detection research needs to be carried out before a large-scale heat storage unit or system is connected to an original heat energy system. Therefore, a control and detection device suitable for the unstable large-scale heat storage system is needed, is applied to a large-scale heat storage experiment and detection platform, meets the requirements of high power, high temperature pressure range, fast response and high precision, accurately obtains the flow heat transfer mechanism and the heat storage unit performance in the large-scale heat storage unit, provides necessary instruments and equipment for breaking through the key technology of the large-scale heat storage system, and provides powerful support for the integrated control and combined operation technology of renewable energy sources and large-scale heat storage and the like.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the invention provides a heat storage experiment system and a control and detection device thereof, wherein the control and detection device can be used for rapidly and accurately controlling and detecting and diagnosing various state parameters of heat storage devices with different scales and working condition parameters in the heat storage experiment system in the experiment and operation process, and can meet the research and development and test of heat storage key components in a compressed air energy storage system.
The technical solution adopted by the invention to solve the technical problem is as follows:
a heat storage experiment system at least comprises a high-temperature working medium storage unit, a low-temperature working medium storage unit and a tested heat storage device,
the outlet pipeline of the high-temperature working medium storage unit is communicated with the inlet pipeline of the heat storage device to be tested through a first branch and a second branch which are connected in parallel, wherein the outlet pipeline of the high-temperature working medium storage unit is at least provided with a fluid driving element, the first branch is at least provided with a control valve and a heater, the second branch is at least provided with a control valve and a cooler, and the inlet pipeline of the heat storage device to be tested is at least provided with a flowmeter, a pressure sensor and a temperature sensor;
the outlet pipeline of the measured heat storage device is communicated with the inlet pipeline of the low-temperature working medium storage unit through a control valve, wherein the outlet pipeline of the measured heat storage device is at least provided with a pressure sensor, a temperature sensor and a flowmeter, the inlet pipeline of the low-temperature working medium storage unit is at least provided with a cooler,
the inner cavity of the heat storage device to be measured is internally provided with a plurality of temperature sensors for measuring the temperature distribution inside the heat storage device to be measured, and the outer wall of the heat storage device to be measured is at least provided with a heat flow sensor for measuring the heat flow radiated by the outer wall of the heat storage device to be measured.
Preferably, the high-temperature working medium storage unit is a high-temperature working medium storage tank, the low-temperature working medium storage unit is a low-temperature working medium storage tank or an external environment, and the fluid driving element is one or a combination of a pump, a compressor or a fan.
Preferably, the plurality of temperature sensors in the inner cavity of the measured heat storage device are arranged at intervals in the inner cavity of the measured heat storage device along the flowing direction of the fluid.
The invention also provides a control and detection device of the heat storage experiment system, which is used for controlling the experiment process of the heat storage experiment system and detecting the performance of the detected heat storage device, and the control and detection device comprises a parameter measurement module group, a signal conversion module group, a calculation unit module, an analysis detection module and a control module group,
the parameter measurement module group at least includes a temperature measurement module, a pressure measurement module, a flow measurement module and a heat flow measurement module, which are respectively used for collecting parameter information of each corresponding component in the heat storage experimental system, wherein the temperature measurement module is in communication connection with each temperature sensor in the heat storage experimental system, the pressure measurement module is in communication connection with each pressure sensor in the heat storage experimental system, the flow measurement module is in communication connection with each flow meter in the heat storage experimental system, and the heat flow measurement module is in communication connection with the heat flow sensor in the heat storage experimental system;
-the control module group at least comprises a pump control module, a heater control module, a cooler control module and a valve control module, which are respectively used for controlling each corresponding execution component in the heat storage experimental system, wherein the pump control module is in communication connection with a fluid driving element in the heat storage experimental system, the heater control module is in communication connection with a heater in the heat storage experimental system, the cooler control module is in communication connection with a cooler in the heat storage experimental system, and the valve control module is in communication connection with each control valve in the heat storage experimental system;
-said set of signal conversion modules comprising at least a first signal conversion module, a second signal conversion module and a third signal conversion module, wherein,
the input end of the first signal conversion module is in communication connection with each measurement module in the parameter measurement module group, and the output end of the first signal conversion module is in communication connection with the input end of the calculation unit module, so that parameter information acquired by each measurement module is converted into a digital signal and is output to the calculation unit module;
the input end of the second signal conversion module is in communication connection with the information feedback ends of the fluid driving element, the heater, the cooler and each control valve in the heat storage experiment system, and the output end of the second signal conversion module is in communication connection with the input end of the calculation unit module, so that the feedback information of each execution component in the heat storage experiment system is converted into a digital signal and is output to the calculation unit module;
the input end of the third signal conversion module is in communication connection with the output end of the computing unit module, and the output end of the third signal conversion module is in communication connection with each control module in the control module group, so as to correspondingly output each control signal generated by the computing unit module to each control module in the control module group;
the calculation unit module at least includes a decoupling control unit and a prediction control unit, and the calculation unit module generates a state information parameter and a control signal based on a control target and input parameter information and feedback information through decoupling control operation and prediction control operation of the decoupling control unit and the prediction control unit, respectively, where the state information parameter is output to the analysis detection module, and the control signal is output to each corresponding control module in the control module group;
the analysis and detection module performs real-time analysis on the state information parameters output by the computing unit module to realize performance detection of the heat storage experimental system.
Preferably, the control and detection device further comprises a storage unit module, wherein the storage unit module is in communication connection with the output ends of the first signal conversion module, the second signal conversion module and the analysis and detection module respectively, and is used for storing various state signals, control signals and analysis and detection information results in the heat storage experiment system in the experiment process.
The heat storage system control and detection device provided by the invention has the following operation processes:
the temperature measuring module, the pressure measuring module, the flow measuring module and the heat flow measuring module respectively receive temperature, pressure, flow and heat flow signals, convert the signals into digital signals through the first signal conversion module and output the digital signals to the computing unit module;
feedback signals of the fluid driving element, the heater, the cooler and each control valve are converted into digital signals through the second signal conversion module and output to the computing unit module;
the calculation unit module outputs control signals to corresponding control modules in the control module groups through a third signal conversion module based on control targets and received signals through decoupling control operation and predictive control operation, namely control signals of a fluid driving element, a heater, a cooler and control valves in the heat storage experimental system are respectively output to the fluid driving element, the heater, the cooler and the control valves through a pump control module, a heater control module, a cooler control module and a valve control module so as to realize rapid and high-precision control;
the analysis detection module analyzes the state parameters output by the calculation unit module in real time to realize the performance detection of the heat storage system and the device;
in the whole process, the information of all the temperatures, the pressures, the flow rates and the heat flows in the heat storage experiment system, and the state signals, the control signals and the analysis and detection information results of the fluid driving element, the heater, the cooler and all the control valves are stored by the storage unit module.
The control and detection device can realize rapid and high-precision control and performance detection and diagnosis of various heat storage experiment systems, and realize experiment test and performance evaluation of the heat storage experiment systems and equipment.
Preferably, the temperature sensor adapted by the temperature measuring module comprises one or a combination of more than two of a thermocouple, a thermistor, a thermal resistor, a thermopile and a digital temperature sensor, the pressure measuring module adapted by the temperature measuring module comprises one or a combination of more than two of a pressure sensor, a digital pressure gauge and a differential pressure sensor, and the flow measuring module adapted by the temperature measuring module comprises one or a combination of more than two of a mass flowmeter, a turbine flowmeter, an orifice flowmeter, an electromagnetic flowmeter, an ultrasonic flowmeter and a vortex shedding flowmeter.
Preferably, each signal conversion module has one or more functions of converting a signal such as a current, a voltage, an inductance, and a resistance into a digital signal, or converting a digital signal into a signal such as a current, a voltage, an inductance, and a resistance.
Preferably, the calculation unit module comprises one or a combination of at least two of PID control, expert PID control, fuzzy control, decoupling control and predictive control algorithm.
Preferably, the analysis and detection module comprises one or a combination of at least two of mass flow analysis, temperature field analysis, pressure field analysis, heat flow analysis, heat dissipation analysis, heat storage amount analysis, heat release amount analysis, heat storage rate analysis, heat release rate analysis, thermal efficiency analysis and heat storage performance detection of the heat storage experiment system.
Preferably, the pump control module is adapted to include one or a combination of at least two of a centrifugal pump, a scroll pump, a mixed flow pump, an axial flow pump, a piston pump, a diaphragm pump, an electromagnetic pump, a centrifugal fan, an axial flow fan, and a roots fan.
Preferably, the heater control modules are respectively adapted to one or a combination of at least two of an electromagnetic heater, an infrared heater and a resistance heater.
Preferably, the valve control module is adapted to one or a combination of at least two of a pneumatic valve, an electric valve, a hydraulic valve, a stop valve and a regulating valve.
The working principle and the using process of the heat storage system control and detection device are as follows:
firstly, establishing communication connection between a control and detection device and each temperature sensor, pressure sensor, flow sensor, heat flow sensor, pump and fan, heater or cooler and control valve in a heat storage experiment system;
inputting a control target and a control program of the heat storage experiment system into the control and detection device, and then starting the heat storage experiment system;
the temperature measuring module, the pressure measuring module, the flow measuring module and the heat flow measuring module of the control and detection device respectively receive temperature, pressure, flow and heat flow signals, convert the temperature, pressure, flow and heat flow signals into digital signals through the signal conversion module and output the digital signals to the computing unit module, signals of a fluid driving element, a heater, a cooler and each control valve of the control and detection device are converted into digital signals through the signal conversion module and output the digital signals to the computing unit module, and the computing unit module generates control signals for the fluid driving element, the heater, the cooler and the valves through decoupling control operation and prediction control operation based on a control target and the received signals; and control signals of the fluid driving element, the heater, the cooler and each control valve are respectively output to each corresponding execution component through each control module through the signal conversion module, so that the high-speed and high-precision control of the temperature, the pressure and the flow of a controlled target of the heat storage experiment system is realized.
In the control and detection device, the analysis and detection module carries out real-time analysis on the state parameters such as temperature, pressure, flow and the like output by the calculation unit module, so as to realize the performance detection of the heat storage system and the device. In the whole process, the state signals, the control signals and the analysis and detection information results of temperature, pressure, flow and heat flow, fluid driving elements, heaters, coolers, various control valves and the like are stored by the storage unit module.
The control and detection device analyzes and detects the performances of mass flow, temperature field, pressure field, heat flow, heat dissipation, heat storage quantity, heat release quantity, heat storage rate, heat release rate, heat efficiency, heat storage performance and the like by means of mean value, filtering processing, integration, differentiation and the like, thereby realizing the experimental test and performance evaluation of the heat storage system and the equipment.
In the whole process, the state signals, the control signals and the analysis and detection information results of temperature, pressure, flow and heat flow, fluid driving elements, heaters, coolers, various control valves and the like are stored by the storage unit module.
The device can realize rapid and high-precision control and performance detection and diagnosis of various state parameters in the experiment and operation process of the heat storage system and the heat storage device with different scales and working condition parameters, and can meet the research and development and test of heat storage key components in the compressed air energy storage system.
Drawings
Fig. 1 is a schematic view of a heat storage experimental system of the present invention, wherein the meanings of the reference numerals are as follows: the system comprises a high-temperature liquid storage tank 1, a pump 2, control valves 3, 3', 15, a heater 4, coolers 5 and 16, flow meters 6 and 14, pressure sensors 7 and 13, temperature sensors 8, 10 and 12, a measured heat storage device 9, a heat flow sensor 11 and a low-temperature liquid storage tank 17;
fig. 2 is a schematic structural diagram of the control and detection device of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the 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.
As shown in FIG. 1, the heat storage experimental system of the invention comprises a high temperature working medium storage unit (preferably a high temperature liquid storage tank 1) and a low temperature working medium storage unit (preferably a low temperature liquid storage tank 17), a pump 2, a heater 4, coolers 5 and 16, flow meters 6 and 14, pressure sensors 7 and 13, temperature sensors 8, 10 and 12, a measured heat storage device 9, a heat flow sensor 11, control valves 3, 3' and 15 and other parts and necessary pipelines.
As a preferred embodiment of the present invention, the low temperature liquid storage tank 17 in the heat storage experimental system can be eliminated and replaced by the atmospheric environment, so that the whole experimental system is changed from a closed system to an open system.
Specifically, as shown in fig. 1, the heat storage experimental system of the present invention includes a high temperature liquid storage tank 1, a low temperature liquid storage tank 17 and a measured heat storage device 9, wherein an outlet pipeline of the high temperature liquid storage tank 1 is communicated with an inlet pipeline of the measured heat storage device 9 through a first branch and a second branch which are connected in parallel, wherein an outlet pipeline of the high temperature liquid storage tank 1 is at least provided with a fluid driving element (i.e. a pump 2), the first branch is at least provided with a control valve 3 and a heater 4, the second branch is at least provided with a control valve 3' and a cooler 5, and an inlet pipeline of the measured heat storage device 9 is at least provided with a flow meter 6, a pressure sensor 7 and a temperature sensor 8; an outlet pipeline of the measured heat storage device 9 is communicated with an inlet pipeline of a low-temperature liquid storage tank 17 through a control valve 15, wherein at least one pressure sensor 12, one temperature sensor 13 and one flowmeter 14 are arranged on an outlet pipeline of the measured heat storage device 9, and at least one cooler 16 is arranged on an inlet pipeline of the low-temperature liquid storage tank 17; a plurality of temperature sensors 10 are arranged in the inner cavity of the measured heat storage device 9 and used for measuring the temperature distribution inside the measured heat storage device 9, and at least one heat flow sensor 11 is arranged on the outer wall of the measured heat storage device 9 and used for measuring the heat flow radiated by the outer wall of the measured heat storage device 9.
As for the heat storage experimental system, as shown in fig. 2, the invention further provides a control and detection device for controlling the experimental process of the heat storage experimental system and detecting the performance of the detected heat storage device. The control and detection device comprises a parameter measurement module group, a signal conversion module group, a calculation unit module, an analysis detection module and a control module group, wherein the parameter measurement module group at least comprises a temperature measurement module, a pressure measurement module, a flow measurement module and a heat flow measurement module which are respectively used for collecting parameter information of each corresponding part in a heat storage experiment system, the temperature measurement module is in communication connection with each temperature sensor in the heat storage experiment system, the pressure measurement module is in communication connection with each pressure sensor in the heat storage experiment system, the flow measurement module is in communication connection with each flowmeter in the heat storage experiment system, and the heat flow measurement module is in communication connection with the heat flow sensor in the heat storage experiment system. The control module group at least comprises a pump control module, a heater control module, a cooler control module and a valve control module which are respectively used for controlling each corresponding execution component in the heat storage experiment system, wherein the pump control module is in communication connection with a fluid driving element in the heat storage experiment system, the heater control module is in communication connection with a heater in the heat storage experiment system, the cooler control module is in communication connection with a cooler in the heat storage experiment system, and the valve control module is in communication connection with each control valve in the heat storage experiment system. The signal conversion module group at least comprises a first signal conversion module 101, a second signal conversion module 102 and a third signal conversion module 103, wherein the input end of the first signal conversion module 101 is in communication connection with each measurement module in the parameter measurement module group, and the output end of the first signal conversion module is in communication connection with the input end of the calculation unit module, so that parameter information acquired by each measurement module is converted into a digital signal and output to the calculation unit module; the input end of the second signal conversion module 102 is in communication connection with the information feedback ends of the fluid driving element, the heater, the cooler and each control valve in the heat storage experimental system, and the output end of the second signal conversion module is in communication connection with the input end of the computing unit module, so as to convert the feedback information of each execution component in the heat storage experimental system into digital signals and output the digital signals to the computing unit module; the input end of the third signal conversion module 103 is communicatively connected to the output end of the computing unit module, and the output end thereof is communicatively connected to each control module in the control module group, so as to correspondingly output each control signal generated by the computing unit module to each control module in the control module group. And the calculation unit module at least comprises a decoupling control unit and a prediction control unit, generates a state information parameter and a control signal through decoupling control operation and prediction control operation of the decoupling control unit and the prediction control unit respectively based on a control target and input parameter information and feedback information, outputs the state information parameter to the analysis detection module, and outputs the control signal to each corresponding control module in the control module group. And the analysis and detection module is used for analyzing the state information parameters output by the calculation unit module in real time to realize the performance detection of the heat storage experiment system.
As shown in fig. 2, the control and detection device of the present invention further includes a storage unit module, which is respectively connected to the output ends of the first signal conversion module, the second signal conversion module, and the analysis and detection module in a communication manner, and is used to store various status signals, control signals, and analysis and detection information results in the heat storage experiment system during the experiment.
The control and detection device can realize rapid and high-precision control and performance detection and diagnosis of various heat storage experiment systems, and realize experiment test and performance evaluation of the heat storage experiment systems and equipment. When the tested heat storage device 9 in the heat storage experiment system is tested for heat storage performance, the process is as follows:
in the heat storage testing process, after a liquid medium in the high-temperature liquid storage tank 1 is conveyed by the pump 2 to pass through the valve 3, the heater 4, the valve 3' and the cooler 5, the liquid medium passes through the flowmeter 6, the pressure sensor 7 and the temperature sensor 8 and then enters the tested heat storage device 9, the temperature distribution inside the tested heat storage device 9 is measured by the temperature sensor group 10, the heat flow outside the tested heat storage device 9 is measured by the heat flow sensor 11, the medium flowing out of the tested heat storage device 9 sequentially passes through the temperature sensor 12, the pressure sensor 13 and the flowmeter 14 and then enters the low-temperature liquid storage tank 17 through the valve 15 and the cooler 16.
The heat storage system control and detection device comprises a temperature measurement module, a pressure measurement module, a flow measurement module and a heat flow measurement module, wherein the temperature measurement module receives signals of temperature sensors 8, 10 and 12, the pressure measurement module receives signals of pressure sensors 7 and 13, the flow measurement module receives signals of flow meters 6 and 14, and the heat flow measurement module receives a signal of a heat flow sensor 11; the signal conversion module 102 receives signals from the pump 2, heater 4, coolers 5, 16 and valves 3, 4 and 15. The pump 2 receives signals of the pump and fan control module; the heater 4 and the cooler 5 receive signals of a heater and cooler control module; valves 3, 3' and 15 receive signals from the valve control module.
In the experimental process, a control target and a control program of the heat storage system are input into the heat storage system control and detection device, and then the heat storage system is started. The heat storage system control and detection device comprises a temperature measurement module, a pressure measurement module, a flow measurement module and a heat flow measurement module, wherein the temperature measurement module, the pressure measurement module, the flow measurement module and the heat flow measurement module respectively receive signals of temperature sensors 8, 10 and 12, pressure sensors 7 and 13, flow meters 6 and 14 and a heat flow sensor 11, convert the signals into digital signals through a signal conversion module 101 and output the digital signals to a calculation unit module, signals of a pump 2, a heater 4, coolers 5 and 16 and valves 3, 3 'and 15 of the heat storage system control and detection device are converted into digital signals through a signal conversion module 102 and output the digital signals to the calculation unit module, and the calculation unit module generates control signals for the pump 2, the heater 4, the cooler 5 and the valves 3, 3' and 15 through decoupling control operation and predictive control operation on the basis of a control target and the received signals; through the signal conversion module 103, control signals are respectively output to the pump 2, the heater 3, the cooler 4 and the valves 3, 3' and 15 through the pump and fan control module, the heater and cooler control module and the valve control module, so that high-speed and high-precision control of the temperature, pressure and flow of a controlled target of the measured heat storage device 9 is realized.
The analysis and detection module analyzes the state parameters such as temperature, pressure and flow output by the calculation unit module in real time to realize performance detection of the heat storage system and the device. In the whole process, the state signals, control signals and analysis and detection information results of temperature, pressure, flow and heat flow, pumps, heaters, coolers, valves and the like are stored by the storage unit module. The heat storage system control and detection device analyzes and detects the performances of mass flow, temperature field, pressure field, heat flow, heat dissipation, heat storage quantity, heat release quantity, heat storage rate, heat release rate, heat efficiency, heat storage performance and the like by means of methods such as mean value, filtering processing, integration and differentiation, and realizes experimental test and performance evaluation of the heat storage system and equipment. In the whole process, the state signals, control signals and analysis and detection information results of temperature, pressure, flow and heat flow, pumps, heaters, coolers, valves and the like are stored by the storage unit module.
The object of the present invention is fully effectively achieved by the above embodiments. Those skilled in the art will appreciate that the present invention includes, but is not limited to, what is described in the accompanying drawings and the foregoing detailed description. While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications within the spirit and scope of the appended claims.
Claims (11)
1. A control and detection device of a heat storage experiment system is used for controlling the experiment process of the heat storage experiment system and realizing the detection of the performance of the tested heat storage device, the control and detection device comprises a parameter measurement module group, a signal conversion module group, a calculation unit module, an analysis and detection module and a control module group, and is characterized in that,
the heat storage experiment system comprises a high-temperature working medium storage unit, a low-temperature working medium storage unit and a measured heat storage device, wherein an outlet pipeline of the high-temperature working medium storage unit is communicated with an inlet pipeline of the measured heat storage device through a first branch and a second branch which are connected in parallel, at least one fluid driving element is arranged on the outlet pipeline of the high-temperature working medium storage unit, at least one control valve and a heater are arranged on the first branch, at least one control valve and a cooler are arranged on the second branch, and at least one flow meter, a pressure sensor and a temperature sensor are arranged on an inlet pipeline of the measured heat storage device; the outlet pipeline of the measured heat storage device is communicated with the inlet pipeline of the low-temperature working medium storage unit through a control valve, wherein the outlet pipeline of the measured heat storage device is at least provided with a pressure sensor, a temperature sensor and a flowmeter, and the inlet pipeline of the low-temperature working medium storage unit is at least provided with a cooler; the inner cavity of the heat storage device to be measured is provided with a plurality of temperature sensors for measuring the temperature distribution in the heat storage device to be measured, and the outer wall of the heat storage device to be measured is provided with at least one heat flow sensor for measuring the heat flow radiated by the outer wall of the heat storage device to be measured;
the parameter measurement module group at least includes a temperature measurement module, a pressure measurement module, a flow measurement module and a heat flow measurement module, which are respectively used for collecting parameter information of each corresponding component in the heat storage experimental system, wherein the temperature measurement module is in communication connection with each temperature sensor in the heat storage experimental system, the pressure measurement module is in communication connection with each pressure sensor in the heat storage experimental system, the flow measurement module is in communication connection with each flow meter in the heat storage experimental system, and the heat flow measurement module is in communication connection with the heat flow sensor in the heat storage experimental system;
-the control module group at least comprises a pump control module, a heater control module, a cooler control module and a valve control module, which are respectively used for controlling each corresponding execution component in the heat storage experimental system, wherein the pump control module is in communication connection with a fluid driving element in the heat storage experimental system, the heater control module is in communication connection with a heater in the heat storage experimental system, the cooler control module is in communication connection with a cooler in the heat storage experimental system, and the valve control module is in communication connection with each control valve in the heat storage experimental system;
-said set of signal conversion modules comprising at least a first signal conversion module, a second signal conversion module and a third signal conversion module, wherein,
the input end of the first signal conversion module is in communication connection with each measurement module in the parameter measurement module group, and the output end of the first signal conversion module is in communication connection with the input end of the calculation unit module, so that parameter information acquired by each measurement module is converted into a digital signal and is output to the calculation unit module;
the input end of the second signal conversion module is in communication connection with the information feedback ends of the fluid driving element, the heater, the cooler and each control valve in the heat storage experiment system, and the output end of the second signal conversion module is in communication connection with the input end of the calculation unit module, so that the feedback information of each execution component in the heat storage experiment system is converted into a digital signal and is output to the calculation unit module;
the input end of the third signal conversion module is in communication connection with the output end of the computing unit module, and the output end of the third signal conversion module is in communication connection with each control module in the control module group, so as to correspondingly output each control signal generated by the computing unit module to each control module in the control module group;
the calculation unit module at least includes a decoupling control unit and a prediction control unit, and the calculation unit module generates a state information parameter and a control signal based on a control target and input parameter information and feedback information through decoupling control operation and prediction control operation of the decoupling control unit and the prediction control unit, respectively, where the state information parameter is output to the analysis detection module, and the control signal is output to each corresponding control module in the control module group;
the analysis and detection module performs real-time analysis on the state information parameters output by the computing unit module to realize performance detection of the heat storage experimental system.
2. The control and detection device of claim 1, further comprising a storage unit module, wherein the storage unit module is in communication connection with the output ends of the first signal conversion module, the second signal conversion module, and the analysis and detection module, respectively, for storing various status signals, control signals, and analysis and detection information results in the heat storage experiment system during an experiment.
3. The control and detection device according to claim 1, wherein the temperature sensor adapted by the temperature measurement module comprises one or a combination of two or more of a thermocouple, a thermistor, a thermal resistor, a thermopile, and a digital temperature sensor, the pressure measurement module adapted by the pressure measurement module comprises one or a combination of two or more of a pressure sensor, a digital pressure gauge, and a differential pressure sensor, and the flow measurement module adapted by the flow measurement module comprises one or a combination of two or more of a mass flow meter, a turbine flow meter, an orifice flow meter, an electromagnetic flow meter, an ultrasonic flow meter, and a vortex shedding flow meter.
4. The control and detection device according to claim 1, wherein each signal conversion module has one or more functions of converting a signal such as a current, a voltage, an inductance, a resistance, or the like into a digital signal, or converting a digital signal into a signal such as a current, a voltage, an inductance, a resistance, or the like.
5. The control and detection device according to claim 1, wherein the calculation unit module comprises one or a combination of at least two of PID control, expert PID control, fuzzy control, decoupling control and predictive control algorithms.
6. The control and detection device according to claim 1, wherein the analysis and detection module comprises one or a combination of at least two of mass flow analysis, temperature field analysis, pressure field analysis, heat flow analysis, heat dissipation analysis, heat storage amount analysis, heat release amount analysis, heat storage rate analysis, heat release rate analysis, thermal efficiency analysis and heat storage performance detection of the heat storage experiment system.
7. The control and detection device according to claim 1, wherein the pump control module is adapted to include one or a combination of at least two of a centrifugal pump, a scroll pump, a mixed flow pump, an axial flow pump, a piston pump, a diaphragm pump, an electromagnetic pump, a centrifugal fan, an axial flow fan, and a roots fan.
8. The control and detection device according to claim 1, wherein the heater control module is adapted to one or a combination of at least two of an electromagnetic heater, an infrared heater, and a resistance heater, respectively.
9. The control and detection device as claimed in claim 1, wherein the valve control module is adapted to one or a combination of at least two of a pneumatic valve, an electric valve, a hydraulic valve, a stop valve, and a regulating valve.
10. The control and detection device of claim 1, wherein the high temperature working medium storage unit is a high temperature working medium storage tank, the low temperature working medium storage unit is a low temperature working medium storage tank or an external environment, and the fluid driving element is one or a combination of a pump, a compressor or a fan.
11. The control and detection device as claimed in claim 1, wherein the plurality of temperature sensors in the internal cavity of the thermal storage device under test are arranged at intervals in the internal cavity of the thermal storage device under test in the direction of fluid flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010290180.7A CN111413126B (en) | 2020-04-14 | 2020-04-14 | Heat accumulation experimental system and control and detection device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010290180.7A CN111413126B (en) | 2020-04-14 | 2020-04-14 | Heat accumulation experimental system and control and detection device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111413126A CN111413126A (en) | 2020-07-14 |
| CN111413126B true CN111413126B (en) | 2022-02-15 |
Family
ID=71493600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010290180.7A Active CN111413126B (en) | 2020-04-14 | 2020-04-14 | Heat accumulation experimental system and control and detection device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111413126B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360725B (en) * | 2020-11-09 | 2023-04-28 | 贵州电网有限责任公司 | Compressed air energy storage test platform for off-grid operation and operation method |
| CN112360726B (en) * | 2020-11-09 | 2023-07-28 | 贵州电网有限责任公司 | Compressed air energy storage experimental platform in layered arrangement and operation method |
| CN113551929B (en) * | 2021-07-20 | 2022-04-26 | 浙江大学 | Testing system and testing method for unsteady-state heat source heat storage and exchange device |
| CN113834680B (en) * | 2021-10-20 | 2024-02-02 | 华北电力科学研究院有限责任公司 | Fault testing method, device and system for liquefied air energy storage efficiency |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101231214B (en) * | 2008-01-29 | 2011-10-19 | 武汉理工大学 | Apparatus for testing and evaluating heat-filling and heat-discharging process of thermal storage device |
| CA2956147C (en) * | 2010-04-01 | 2019-02-19 | John Hamilton Stannard | A system and method for storing thermal energy as auxiliary power in a vehicle |
| DE102011117193A1 (en) * | 2011-10-28 | 2013-05-02 | Energie-Technik Welfers GmbH | Hood for covering e.g. buffer tank in passive home for heating drinking water, has insulator attached to heat exchanger or heat accumulator of opposite side of hood, and another heat exchanger arranged in hood and comprising thermostat |
| CN105424740B (en) * | 2015-12-10 | 2018-04-17 | 西安交通大学 | A kind of fused salt heat exchanging/heat accumulation equipment performance testing device |
| CN206269651U (en) * | 2016-11-22 | 2017-06-20 | 华电能源股份有限公司富拉尔基发电厂 | A kind of automaton of heat-accumulator tank transition region thickness |
| CN107449626B (en) * | 2017-08-31 | 2023-08-04 | 山东奇威特太阳能科技有限公司 | Heat accumulator testing system and heat accumulator testing method based on same |
| CN107842399A (en) * | 2017-11-13 | 2018-03-27 | 清华大学 | A kind of throttling Hui Leng adiabatic compression air energy storage systems |
| CN208736687U (en) * | 2018-09-03 | 2019-04-12 | 中国科学院工程热物理研究所 | A kind of thermal performance test system |
| CN110762899A (en) * | 2019-01-24 | 2020-02-07 | 中船第九设计研究院工程有限公司 | Heat preservation pond and holding water box joint water supply pipeline system |
| CN210090347U (en) * | 2019-04-18 | 2020-02-18 | 深圳市爱能森储能技术创新有限公司 | Energy storage system for laboratory |
-
2020
- 2020-04-14 CN CN202010290180.7A patent/CN111413126B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111413126A (en) | 2020-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111413126B (en) | Heat accumulation experimental system and control and detection device thereof | |
| CN202471131U (en) | System for carrying out real-time monitoring on performance of steam condenser for power plants | |
| Scott et al. | An experimental investigation of an ejector for validating numerical simulations | |
| CN203259458U (en) | Calibrating system for infrared methane sensor | |
| CN103491749B (en) | The cooling means of a kind of closed cooling system and structure | |
| CN105823637B (en) | A kind of scroll expander Performance Test System | |
| CN111307479B (en) | Performance test system of heat storage equipment taking steam as working medium | |
| CN102338568A (en) | Online monitoring system and method for performance of condenser in power plant based on cleanness coefficient index | |
| CN106017968A (en) | EGR cooler heat exchange efficiency detection system | |
| CN102495094A (en) | Online calculation method of enthalpy-entropy values of water and water vapor | |
| CN211904661U (en) | Heat accumulation experimental system and control and detection device thereof | |
| CN106500996A (en) | A kind of generator stator bar hot water stream experimental simulation device and experimental technique | |
| CN110186959A (en) | A kind of experimental tester for heat volt power generation | |
| CN204386715U (en) | For the thermostatically-controlled equipment of engine coolant | |
| CN115560374B (en) | Heating control method and system based on heat pump unit state data processing | |
| CN104454119A (en) | Constant-temperature control device for engine cooling liquid and control method of constant-temperature control device | |
| CN111964940A (en) | Heat regenerator module flow heat exchange test bed and debugging method | |
| CN210861901U (en) | Variable working condition energy efficiency test system of cold water supply system | |
| TW202210769A (en) | Multi-stage heat pump performance test system | |
| CN207317056U (en) | The circulatory system and conduction oil heating cycle system | |
| CN208431037U (en) | A kind of monitoring system of turbine low pressure cylinder efficiency | |
| CN108019344B (en) | Method for testing efficiency of electric water supply pump set | |
| CN107462390A (en) | A kind of dual flow path Multifunctional mobile and heat exchange test device | |
| CN212567974U (en) | Regenerator module flow heat transfer test bench | |
| CN110671869A (en) | Variable working condition energy efficiency testing system of cold water supply system and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |