Single energy storage temperature control method and control system based on working fluid flow and temperature

By real-time monitoring and adjusting the working fluid flow, the problem of unstable working fluid temperature in the single energy storage system is solved, the energy utilization rate is improved, and stable control of the working fluid temperature is achieved.

CN120406618BActive Publication Date: 2025-09-23YANTAI UNIV
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Patent Information

Application Number
CN202510873015.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-06-27
Publication Date
2025-09-23
Estimated Expiration
2045-06-27

AI Technical Summary

Technical Problem

In the existing single-unit energy storage system, during the heat release process, the temperature of the flowing working fluid changes due to the decrease in the temperature of the energy storage material, resulting in unstable working fluid temperature and energy waste.

Method used

By real-time monitoring of the working fluid flow, outlet working fluid temperature and energy storage material temperature, and using a temperature control unit and flow regulation mechanism, the working fluid flow is adjusted according to preset rules to maintain the working fluid temperature stability, including cutting off the working fluid inlet and manually or automatically fine-tuning the flow to reach the temperature set value.

Benefits of technology

The energy utilization rate of the single energy storage system is improved, the stable control of the working fluid temperature is achieved, and energy waste is reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

A single energy storage temperature control method and control system based on working fluid flow and temperature relates to the field of energy storage system control technology. In order to solve the problem of energy waste in existing single energy storage systems, the working fluid flow, outlet working fluid temperature and energy storage material temperature of the single energy storage system are monitored in real time, and the working fluid flow measurement value, outlet working fluid temperature measurement value and energy storage material temperature measurement value are provided to the temperature control unit; the temperature control unit generates an adjustment instruction for the working fluid flow of the single energy storage system according to the working fluid flow measurement value, outlet working fluid temperature measurement value and energy storage material temperature measurement value through preset rules; the working fluid flow adjustment unit adjusts the working fluid flow of the single energy storage system according to the adjustment instruction. The present invention is mainly used to optimize the energy release process of the single energy storage system, thereby achieving the stability of the flowing working fluid temperature, which helps to improve the utilization rate of low-grade thermal energy.
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Description

Technical Field

[0001] The present invention relates to the technical field of energy storage system control, and in particular to a single energy storage temperature control method and control system based on working fluid flow and temperature. Background Art

[0002] Existing energy storage systems operate by storing excess energy in storage materials. When energy demand increases, the stored energy is released through work or heating or cooling. Energy storage systems can overcome the time constraints of energy supply and are crucial for the development of the renewable energy industry, particularly the application of renewable energy generation in the power industry.

[0003] Currently, there are many different energy storage technologies, which are divided into heat storage and power storage according to the form of stored energy. Compared with power storage, heat storage technology is more mature and has a wider range of applications. Heat storage technology is divided into two categories according to the destination of the energy storage materials in the energy storage system: single-cell thermal energy storage and double-tank thermal energy storage. Single-tank thermocline thermal energy storage and solid energy storage all belong to the former. Due to the simplicity of single-cell energy storage systems and the cheap and easy availability of single-cell energy storage materials, single-cell energy storage technology has been widely used in small-scale, distributed heating and steam supply. In addition, scholars have explored the use of single-cell energy storage to heat air heating pipes and believe that single-cell energy storage systems can be applied to pipeline preheating.

[0004] In a single-cell energy storage system, heat is stored in the heat storage channel, transferring the energy of other high-temperature working fluids to the system, raising the system temperature. During heat release, the heat from the energy storage system is transferred to the flowing working fluid through the heat release channel. Unlike dual-tank energy storage technology, in single-cell energy storage, the temperature of the energy storage material gradually decreases during the heat release process, reducing the quality of the thermal energy stored in the single-cell energy storage system and causing the temperature of the flowing working fluid to change (without changing the working fluid flow rate). In applications with strict working fluid temperature requirements, the choice is often to discard most of the heat from the single-cell energy storage system to maintain a stable working fluid temperature, resulting in energy waste.

[0005] Therefore, a single energy storage temperature control method and control system based on working fluid flow and temperature with simple structure and high energy utilization is needed. Summary of the Invention

[0006] The present invention aims to solve the problem of energy waste in existing single energy storage systems and provides a single energy storage temperature control method and control system based on working fluid flow and temperature, which has a simple structure and high energy utilization rate.

[0007] The monomer energy storage temperature control method based on working fluid flow and temperature of the present invention specifically comprises the following steps:

[0008] Monitor the working fluid flow rate, outlet working fluid temperature and energy storage material temperature of the single energy storage system in real time, and provide the working fluid flow rate measurement value, outlet working fluid temperature measurement value and energy storage material temperature measurement value to the temperature control unit;

[0009] The temperature control unit generates a flow rate adjustment instruction for the working fluid of the single energy storage system according to a preset rule calculation based on a temperature setting value, the working fluid flow rate measurement value, the outlet working fluid temperature measurement value, and the energy storage material temperature measurement value;

[0010] The regulating instruction is converted into an opening regulating instruction of the working fluid flow regulating mechanism through the flow regulating mechanism signal operation module, and the working fluid flow regulating mechanism regulates the working fluid flow of the single energy storage system according to the opening regulating instruction.

[0011] Furthermore: the preset rules are:

[0012] S1, according to the outlet working fluid temperature setting value , the outlet working fluid temperature measurement value and the energy storage material temperature measurement value , determine whether the single energy storage system enters the thermal storage mode: if , then the working medium inlet of the single energy storage system is cut off, and the single energy storage system enters the heat storage mode; if ,and , then the working medium inlet of the single energy storage system is cut off, and the single energy storage system enters the heat storage mode; if ,and , then execute S2;

[0013] in, Indicates the outlet working fluid temperature setting value, Represents the temperature measurement value of the energy storage material, Indicates the measured value of the outlet working fluid temperature, is a first preset threshold;

[0014] S2, if , the operator manually chooses whether to fine-tune the working fluid flow regulating mechanism; if , then calculate the working fluid flow setting value , based on the working fluid flow setting value Adjust the working fluid flow until the working fluid flow measurement value reaches the working fluid flow set value, and then judge again and The size of , then repeatedly calculate the working fluid flow setting value and adjust it until ;

[0015] Where, is the relative difference in outlet working fluid temperature, is a second preset threshold;

[0016] S3, when , and the operator chooses whether to automatically fine-tune the working fluid flow regulating mechanism. If the operator chooses not to automatically fine-tune, the process ends.

[0017] Further: In S2, the calculated working fluid flow setting value The calculation process is as follows:

[0018] ;

[0019] Where: m is the mass of energy storage material; is the specific heat capacity of the energy storage material at constant pressure; is the temperature change rate of the energy storage material; is the specific heat capacity of the working fluid at constant pressure; is the measured value of the working fluid flow rate.

[0020] Furthermore: in S3, the specific process of the fine-tuning includes:

[0021] The working fluid flow regulating mechanism is automatically fine-tuned according to the preset unit change. , the working fluid flow regulating mechanism is adjusted upward by a preset unit change; when , the working fluid flow regulating mechanism is adjusted downward by a preset unit change; when When , the process ends; when Repeat the fine-tuning.

[0022] Furthermore: in S2, the relative difference in outlet working fluid temperature is calculated as follows:

[0023] ;

[0024] in, is the measured value of outlet working fluid temperature, The outlet working fluid temperature setting value.

[0025] Furthermore: the working medium is water, air or thermal oil.

[0026] The present invention is used to implement the single energy storage temperature control system based on working fluid flow and temperature, including a temperature control unit, a measuring unit and a working fluid flow control unit; the measuring unit includes a working fluid flow measurement device, an outlet working fluid temperature measurement device and an energy storage material temperature measurement device; the working fluid flow control unit includes a flow regulation mechanism signal operation module and a working fluid flow regulation mechanism;

[0027] The working fluid flow measuring device, outlet working fluid temperature measuring device, energy storage material temperature measuring device and working fluid flow regulating mechanism are all installed on the single energy storage system. The output ends of the working fluid flow measuring device, outlet working fluid temperature measuring device and energy storage material temperature measuring device are connected to the temperature control unit for signal connection; the temperature control unit is connected to the working fluid flow regulating unit for bidirectional signal connection.

[0028] Furthermore: the temperature control unit includes an input module, a storage module and a preset rule operation module, and the input module, storage module and preset rule operation module are connected in sequence;

[0029] The input module is used to input preset values. The output ends of the working fluid flow measurement device, the outlet working fluid temperature measurement device, the energy storage material temperature measurement device and the working fluid flow regulation mechanism are all signal-connected to the input end of the storage module. The output end of the preset rule operation module is connected to the input end of the flow regulation mechanism signal operation module, and the output end of the flow regulation mechanism signal operation module is connected to the input end of the working fluid flow regulation mechanism.

[0030] Furthermore: the working fluid flow measurement device adopts a thermal flowmeter, a differential pressure flowmeter, an ultrasonic flowmeter or a target flowmeter; the outlet working fluid temperature measurement device and the energy storage material temperature measurement device adopt a thermocouple, a thermal resistor or a radiation thermometer; the working fluid flow regulation mechanism adopts a flow regulating valve or an adjustable baffle.

[0031] The beneficial effects of the present invention are:

[0032] By controlling the flow rate and temperature of the flowing working fluid in a single energy storage system, the present invention helps maintain the temperature of the flowing working fluid stable under heat release conditions. This improves the utilization rate of the heat stored in the single energy storage material when the flowing working fluid approaches the boundary operating temperature of the single energy storage system, thereby achieving the goal of energy conservation and emission reduction. The present invention is highly adaptable and can be used not only as a method for controlling the temperature of the flowing working fluid in a single energy storage system, but also in other situations where temperature control is required. It has important application value in the field of single energy storage systems and other industrial fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a functional block diagram of a single energy storage temperature control system based on working fluid flow and temperature;

[0034] Figure 2 This is a flow chart of a single energy storage temperature control method based on working fluid flow and temperature. DETAILED DESCRIPTION

[0035] The following are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or replacements that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the scope of protection of the present invention. The embodiments described below are only used to explain the present invention and cannot be interpreted as limiting the present invention. The scope of protection of the present invention should be based on the scope of protection of the claims. The embodiments of the present invention are described in detail below. In order to facilitate the description of the present invention and simplify the description, the technical terms used in the description of the present invention should be interpreted broadly, including but not limited to conventional replacement schemes not mentioned in this application, and also including direct implementation and indirect implementation.

[0036] Example 1

[0037] Combine Figure 1 and Figure 2 This embodiment describes a method for controlling the temperature of a single energy storage device based on working fluid flow and temperature, and the specific steps include:

[0038] Real-time monitoring of the working fluid flow rate, outlet working fluid temperature and single energy storage material temperature of the single energy storage system, and providing the working fluid flow measurement value to the temperature control unit , outlet working fluid temperature measurement value and the temperature measurement of the energy storage material ;

[0039] The temperature control unit calculates according to the preset rules, the temperature setting value, the working fluid flow measurement value, , outlet working fluid temperature measurement value and the temperature measurement of the energy storage material , generating a regulating instruction for the working fluid flow of a single energy storage system;

[0040] The regulating instruction is converted into an opening regulating instruction of the working fluid flow regulating mechanism through the flow regulating mechanism signal operation module, and the working fluid flow regulating mechanism regulates the working fluid flow of the single energy storage system according to the opening regulating instruction.

[0041] The preset rules are:

[0042] S1. Determine whether the single energy storage system enters the thermal storage mode based on the outlet working fluid temperature setting value, the outlet working fluid temperature measurement value, and the energy storage material temperature measurement value: If , then the working medium inlet of the single energy storage system is cut off, and the single energy storage system enters the heat storage mode; if ,and , then the working medium inlet of the single energy storage system is cut off, and the single energy storage system enters the heat storage mode; if ,and , then execute S2;

[0043] in, Indicates the outlet working fluid temperature setting value, represents the measured value of the temperature of the energy storage material, Indicates the measured value of the outlet working fluid temperature, The first preset threshold value is -10℃ by default and can be manually adjusted by the operator.

[0044] That is, if the first preset threshold is -5℃, when the outlet working fluid temperature measurement value is Lower than the measured temperature of the energy storage material , and the difference is greater than or equal to -5℃, the working medium inlet of the single energy storage system is cut off, and the single energy storage system enters the heat storage mode;

[0045] S2, if , the operator manually chooses whether to fine-tune the working fluid flow regulating mechanism; if , then calculate the working fluid flow setting value , based on the working fluid flow setting value Adjust the working fluid flow until the working fluid flow measurement value reaches the working fluid flow set value, and then judge again and The size of , then repeatedly calculate the working fluid flow setting value and adjust it until ;

[0046] Where, is the relative difference in outlet working fluid temperature, The second preset threshold value has a default value of 10°C and can be manually adjusted by the operator;

[0047] Among them, the outlet working fluid temperature setting value and a second preset threshold Before starting temperature control, the operator needs to input the outlet working fluid temperature setting value through the input module of the temperature control unit or store it in the storage module of the temperature control unit. and a second preset threshold The initial default value; each time calculation is required, the preset rule calculation module refers to the outlet working fluid temperature setting value and a second preset threshold The second preset threshold The user determines the second preset threshold value according to the application. The stricter the working fluid temperature requirement is, the smaller the second preset threshold value is.

[0048] Outlet working fluid temperature setting value Refers to the temperature target value to be controlled by the temperature control unit. When the user inputs a new outlet working fluid temperature setting value through the input module, the previous outlet working fluid temperature setting value will be overwritten.

[0049] S3, when , and the operator can choose to automatically fine-tune the working fluid flow regulating mechanism. If the operator chooses not to perform automatic fine-tuning, the process ends.

[0050] When the outlet working fluid temperature measurement value Lower than the measured temperature of the energy storage material , and the difference is less than 10℃, and the outlet working fluid temperature measurement value and outlet working fluid temperature setting value The absolute value of the relative difference between the two, that is, the relative difference in outlet working fluid temperature The absolute value exceeds the second preset threshold When the preset rule calculation module of the temperature control unit calculates the working fluid flow setting value according to the following expression .

[0051] The calculated working fluid flow setting value The calculation process is as follows:

[0052] ;

[0053] Where: m is the mass of energy storage material; is the specific heat capacity of the energy storage material at constant pressure; The temperature change rate of the energy storage material is sampled every minute and the temperature measurement value of the energy storage material is measured according to Calculate; where is the temperature measurement of the energy storage material in the next minute; is the specific heat capacity of the working fluid at constant pressure; is the measured value of working fluid flow.

[0054] Outlet working fluid temperature setting value Greater than the measured temperature of the energy storage material When the outlet working fluid temperature is set to Less than the measured temperature of the energy storage material And the outlet working fluid temperature setting value When the temperature is not lower than the minimum temperature required by the single energy storage material, the temperature control unit is executed to adjust the working fluid flow rate and the working fluid flow rate to adjust the working fluid temperature so that the outlet working fluid temperature measurement value is and outlet working fluid temperature setting value The relative difference is lower than the second preset threshold . Outlet working fluid temperature setting value The unit can be set in degrees Celsius (°C) or Kelvin (K).

[0055] Based on the working fluid flow setting value , the working fluid flow regulating mechanism will increase or decrease until the working fluid flow measurement value Reach the working fluid flow setting value ; Determine the outlet working fluid temperature measurement value and the outlet working fluid temperature setting value If the relative difference (i.e. the relative difference in outlet working fluid temperature) The absolute value of is still greater than the second preset threshold , then repeat S2;

[0056] The second preset threshold It is a parameter to judge whether to adjust the outlet working fluid temperature. and outlet working fluid temperature setting value The relative difference The absolute value of When the working fluid flow rate is adjusted, the working fluid flow rate adjustment amount is determined according to the relationship between the working fluid temperature change and the working fluid flow rate change. The working fluid flow rate adjustment mechanism is adjusted according to the corresponding relationship between the working fluid flow rate and the working fluid flow rate adjustment mechanism stored in the flow adjustment mechanism signal operation module in advance, so that the outlet working fluid temperature measurement value is and outlet working fluid temperature setting value The relative difference As shown in Table 1, the corresponding relationship between the working fluid flow rate and the working fluid flow rate regulating mechanism is preset and stored according to the flow-opening characteristic curve corresponding to different valves.

[0057] Table 1 Flow rate-opening correspondence table

[0058]

[0059] In S2, the specific process of the fine-tuning includes:

[0060] The working fluid flow regulating mechanism is automatically fine-tuned according to the preset unit change. When , the working fluid flow regulating mechanism is adjusted upward by a preset unit change; when When , the working fluid flow regulating mechanism adjusts downward by a preset unit change; when When , the process ends; when The unit change amount can be set to a change amount of ±1%.

[0061] In S2, the relative difference in outlet working fluid temperature is calculated as follows:

[0062] ;

[0063] Where, is the relative difference in outlet working fluid temperature, is the measured value of outlet working fluid temperature, The outlet working fluid temperature setting value.

[0064] The working medium is water, air or heat transfer oil.

[0065] Example 2

[0066] Combine Figure 1 This embodiment is described together with Example 1. The control system disclosed in this embodiment for implementing the single energy storage temperature control method based on working fluid flow and temperature includes a temperature control unit, a measuring unit, and a working fluid flow control unit; the measuring unit includes a working fluid flow measurement device, an outlet working fluid temperature measurement device, and an energy storage material temperature measurement device; the working fluid flow control unit includes a flow regulation mechanism signal operation module and a working fluid flow regulation mechanism;

[0067] The working fluid flow measuring device, outlet working fluid temperature measuring device, energy storage material temperature measuring device and working fluid flow regulating mechanism are all installed on the single energy storage system. The output ends of the working fluid flow measuring device, outlet working fluid temperature measuring device and energy storage material temperature measuring device are connected to the temperature control unit for signal connection; the temperature control unit is connected to the working fluid flow regulating unit for bidirectional signal connection.

[0068] The working fluid flow measurement device is used to provide a working fluid flow measurement value ; That is, the working fluid flow device is used as a flow measurement unit of the control object. More specifically, the flow meter unit can include a thermal flow meter unit, a differential pressure flow meter unit, an ultrasonic flow meter unit, a target flow meter unit and other flow measurement units.

[0069] The outlet working fluid temperature measuring device is used to provide the outlet working fluid temperature measurement value of the single energy storage system ; That is, the outlet working fluid temperature measuring device is used as the temperature measuring unit of the controlled object.

[0070] The energy storage material temperature measuring device is used to provide the energy storage material temperature measurement value ; That is, the energy storage material temperature measuring device is used as a temperature measuring unit that affects the control object.

[0071] The temperature measuring unit may include a thermocouple, a thermal resistor, a radiation thermometer unit, or the like.

[0072] The flow regulating mechanism signal operation module is used to receive the flow setting value calculated by the preset rule operation module, and generate an opening setting value according to the pre-stored flow-opening characteristic relationship of the working fluid flow regulating mechanism as the input of the working fluid flow regulating mechanism.

[0073] The working fluid flow regulating mechanism is used to regulate the flow of the working fluid according to the regulating instruction. It is used to increase and decrease the flow of the working fluid. The working fluid flow regulating mechanism is used as a flow control unit of the controlled object and may include a flow regulating valve, an adjustable baffle, etc.

[0074] The temperature control unit is based on the outlet working medium temperature setting value , the working fluid flow measurement value , the outlet working fluid temperature measurement value and the energy storage material temperature measurement value To control the working fluid flow regulating mechanism to adjust the working fluid flow so that the outlet working fluid temperature measurement value Reach the outlet working fluid temperature setting value .

[0075] That is, the temperature control unit is used as a unit to control the working fluid flow and the temperature control device as a whole. The temperature control unit includes an operation element for signal exchange or operation processing between various structural components, an input and output unit, and a storage element.

[0076] The temperature control unit includes an input module, a storage module, and a preset rule calculation module, which are connected in sequence. The input module is used to input preset values, which include an outlet working fluid temperature set point, a first preset threshold, and a second preset threshold. The output ends of the working fluid flow measurement device, the outlet working fluid temperature measurement device, the energy storage material temperature measurement device, and the working fluid flow regulation mechanism are all signal-connected to the input end of the storage module. The output end of the preset rule calculation module is connected to the input end of the flow regulation mechanism signal calculation module. The working fluid flow regulation mechanism is also connected to the storage module.

[0077] The temperature control unit has a storage module, which stores the outlet working medium temperature setting value. , working fluid flow measurement value , outlet working fluid temperature measurement value , Energy storage material temperature measurement value These values ​​are the parameters required to perform the temperature control of the single energy storage system involved.

[0078] The temperature control unit also has a preset rule operation module, which calculates the temperature of the outlet working medium according to the measured value of the outlet working medium temperature. and the outlet working fluid temperature setting value The relative difference between , the working fluid flow measurement value at the previous moment , the mass of the single energy storage material m, the specific heat capacity of the single energy storage material at constant pressure and the working fluid's specific heat capacity at constant pressure Obtain the working fluid flow set value .

[0079] The working fluid flow measurement unit adopts a thermal flowmeter, a differential pressure flowmeter, an ultrasonic flowmeter or a target flowmeter; the outlet working fluid temperature measurement unit and the energy storage material temperature measurement device adopt a thermocouple, a thermal resistor or a radiation thermometer; the working fluid flow regulation mechanism adopts a flow regulating valve or an adjustable baffle.

Claims

1. A single energy storage temperature control method based on working fluid flow and temperature, characterized in that: The specific steps include: Monitor the working fluid flow rate, outlet working fluid temperature and energy storage material temperature of the single energy storage system in real time, and provide the working fluid flow rate measurement value, outlet working fluid temperature measurement value and energy storage material temperature measurement value to the temperature control unit; The temperature control unit generates a flow rate adjustment instruction for the working fluid of the single energy storage system according to a preset rule calculation based on a temperature setting value, the working fluid flow rate measurement value, the outlet working fluid temperature measurement value, and the energy storage material temperature measurement value; The regulating instruction is passed through the flow regulating mechanism signal operation module to generate an opening regulating instruction of the working fluid flow regulating mechanism, and the working fluid flow regulating mechanism regulates the working fluid flow of the single energy storage system according to the opening regulating instruction; The preset rules are: S1, according to the outlet working fluid temperature setting value , the outlet working fluid temperature measurement value and the energy storage material temperature measurement value , determine whether the single energy storage system enters the thermal storage mode: if , then the working medium inlet of the single energy storage system is cut off, and the single energy storage system enters the heat storage mode; if ,and , then the working medium inlet of the single energy storage system is cut off, and the single energy storage system enters the heat storage mode; if ,and , then execute S2; in, Indicates the outlet working fluid temperature setting value, Represents the temperature measurement value of the energy storage material, Indicates the measured value of the outlet working fluid temperature, is a first preset threshold; S2, if , the operator manually chooses whether to fine-tune the working fluid flow regulating mechanism; if , then calculate the working fluid flow setting value , based on the working fluid flow setting value Adjust the working fluid flow until the working fluid flow measurement value reaches the working fluid flow set value, and then judge again and The size of , then repeatedly calculate the working fluid flow setting value and adjust it until ; Where, is the relative difference in outlet working fluid temperature, is a second preset threshold; S3, when , and the operator chooses whether to automatically fine-tune the working fluid flow regulating mechanism. If the operator chooses not to automatically fine-tune, the process ends; In S2, the working fluid flow setting value is calculated The calculation process is as follows: ; Where: m is the mass of energy storage material; is the specific heat capacity of the energy storage material at constant pressure; is the temperature change rate of the energy storage material; is the specific heat capacity of the working fluid at constant pressure; is the measured value of the working fluid flow rate.

2. The monomer energy storage temperature control method based on working fluid flow and temperature according to claim 1 is characterized in that: In S3, the specific process of the fine-tuning includes: The working fluid flow regulating mechanism is automatically fine-tuned according to the preset unit change. , the working fluid flow regulating mechanism is adjusted upward by a preset unit change; when , the working fluid flow regulating mechanism is adjusted downward by a preset unit change; when When , the process ends; when Repeat the fine-tuning.

3. The monomer energy storage temperature control method based on working fluid flow and temperature according to claim 1, characterized in that: In S2, the relative difference in outlet working fluid temperature is calculated as follows: ; in, is the measured value of outlet working fluid temperature, The outlet working fluid temperature setting value.

4. The monomer energy storage temperature control method based on working fluid flow and temperature according to claim 1, characterized in that: The working medium is water, air or heat transfer oil.

5. A control system for implementing the single energy storage temperature control method based on working fluid flow and temperature as described in any one of claims 1 to 4, characterized in that: It includes a temperature control unit, a measuring unit and a working fluid flow control unit; the measuring unit includes a working fluid flow measurement device, an outlet working fluid temperature measurement device and an energy storage material temperature measurement device; the working fluid flow control unit includes a flow regulation mechanism signal operation module and a working fluid flow regulation mechanism; The working fluid flow measuring device, outlet working fluid temperature measuring device, energy storage material temperature measuring device and working fluid flow regulating mechanism are all installed on the single energy storage system. The output ends of the working fluid flow measuring device, outlet working fluid temperature measuring device and energy storage material temperature measuring device are connected to the temperature control unit for signal connection; the temperature control unit is connected to the working fluid flow regulating unit for bidirectional signal connection.

6. The control system of the monomer energy storage temperature control method based on working fluid flow and temperature according to claim 5, characterized in that: The temperature control unit includes an input module, a storage module and a preset rule calculation module, and the input module, storage module and preset rule calculation module are connected in sequence; The input module is used to input preset values. The output ends of the working fluid flow measurement device, the outlet working fluid temperature measurement device, the energy storage material temperature measurement device and the working fluid flow regulation mechanism are all signal-connected to the input end of the storage module. The output end of the preset rule operation module is connected to the input end of the flow regulation mechanism signal operation module, and the output end of the flow regulation mechanism signal operation module is connected to the input end of the working fluid flow regulation mechanism.

7. The control system of the monomer energy storage temperature control method based on working fluid flow and temperature according to claim 5, characterized in that: The working fluid flow measurement device adopts a thermal flowmeter, a differential pressure flowmeter, an ultrasonic flowmeter or a target flowmeter; the outlet working fluid temperature measurement device and the energy storage material temperature measurement device adopt a thermocouple, a thermal resistor or a radiation thermometer; the working fluid flow regulation mechanism adopts a flow regulating valve or an adjustable baffle.

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