A method and device for monitoring coolant distribution in a liquid cooling system and a charging pile

Abstract

The present invention belongs to the field of liquid cooling technology, and provides a method, device and charging pile for monitoring the distribution of coolant in a liquid cooling system, wherein the method comprises: using a set temperature sensor to monitor and obtain the temperature data of the working equipment of the charging pile in real time; based on a set flow meter and pressure sensor, monitoring and obtaining the flow data of the coolant in the liquid cooling system in real time; based on the temperature data and flow data, using a set flow balance calculation formula, calculating the flow balance distribution values ​​of multiple working points in the coolant delivery pipeline through which the coolant in the liquid cooling system flows; and according to the set flow balance degree-flow distribution operation parameter matching model, distributing and adjusting the flow of the coolant in the cooling system according to the flow balance distribution value. The present invention improves the accuracy of the flow distribution of the coolant in the liquid cooling system, is conducive to giving full play to the use efficiency of the coolant, and improving the working efficiency and quality of the liquid cooling system.

Description

Technical Field

[0001] The present invention relates to the field of liquid cooling technology, and in particular to a method and device for monitoring coolant distribution in a liquid cooling system, and a charging pile. Background Art

[0002] The working equipment of the charging pile maintains normal working status during the coolant circulation process of the liquid cooling system. If the temperature of the working equipment rises or the pressure of the coolant is insufficient, the coolant needs to be replenished and distributed again to ensure the normal operation of the charging pile;

[0003] At present, in the distribution of coolant in the liquid cooling system of charging piles, the distribution standard based on which the distribution is based is not accurate enough, which makes it difficult to achieve the expected effect of coolant distribution, thus affecting the replenishment of coolant and the improvement of the working efficiency of the charging pile working equipment.

[0004] Therefore, it is necessary to provide a method, device and charging pile for monitoring coolant distribution in a liquid cooling system. Summary of the invention

[0005] The present invention provides a method and device for monitoring the distribution of coolant in a liquid cooling system and a charging pile. The method and device are used to monitor the distribution of coolant in a liquid cooling system according to the temperature data of the working equipment of the charging pile and the flow data of the coolant in the liquid cooling system, and according to the flow balance distribution value obtained by calculation, and a flow balance degree-flow distribution operation parameter matching model is used to distribute and adjust the flow of the coolant in the cooling system, thereby improving the accuracy of the flow distribution of the coolant in the liquid cooling system, which is beneficial to giving full play to the use efficiency of the coolant and improving the working efficiency and quality of the liquid cooling system.

[0006] The present invention provides a method for monitoring coolant distribution in a liquid cooling system, comprising:

[0007] Use the set temperature sensor to monitor and obtain the temperature data of the working equipment of the charging pile in real time;

[0008] Based on the set flow meter and pressure sensor, the flow data of the coolant in the liquid cooling system is monitored in real time;

[0009] Based on the temperature data and the flow data, the flow balance calculation formula is used to calculate the flow balance distribution values ​​of multiple working points in the coolant delivery pipeline through which the coolant of the liquid cooling system flows;

[0010] According to the set flow balance degree-flow distribution operation parameter matching model, the flow of the coolant in the cold system is distributed and adjusted according to the flow balance distribution value.

[0011] Furthermore, the temperature data of the working equipment of the charging pile is obtained by real-time monitoring using a set temperature sensor, including:

[0012] Temperature sensors are arranged at multiple monitoring points of the working equipment of the charging pile; and temperature data of the working equipment of the charging pile is obtained by using the arranged temperature sensors;

[0013] Among them, multiple monitoring points are set based on flow velocity change data in the flow history monitoring record data of the coolant in the coolant delivery pipeline; the flow velocity change node that generates the flow velocity change data is obtained, and the position of the working equipment in the coolant delivery pipeline corresponding to the flow velocity change node is used as the first monitoring point; according to the flow velocity change data, the duration of maintaining the fixed flow velocity is obtained, and the first duration greater than the set duration threshold is obtained, and one or more flow velocity monitoring points are divided and set on the stage delivery pipeline in the coolant delivery pipeline corresponding to the fixed flow velocity corresponding to the first duration, and the position of the working equipment on the stage delivery pipeline corresponding to the flow velocity monitoring point is used as the second monitoring point; the first monitoring point and the second monitoring point are used as monitoring points for laying temperature sensors.

[0014] Furthermore, based on the set flow meter and pressure sensor, the flow data of the coolant in the liquid cooling system is monitored in real time, including:

[0015] A flow meter and a pressure sensor are arranged on multiple valves in a coolant delivery pipeline of a liquid cooling system, the flow meter is used to measure and obtain first flow data, the pressure sensor is used to sense and obtain second flow data, and the first flow data and the second flow data are aggregated to obtain flow data;

[0016] The first flow data is obtained by direct measurement, and the second flow data is obtained by conversion processing based on a processor connected to the pressure sensor.

[0017] Furthermore, based on the temperature data and the flow data, the flow balance distribution values ​​of the multiple working points through which the coolant of the liquid cooling system flows are calculated using the set flow balance calculation formula, including:

[0018] Based on the polynomial regression equation, the flow calculation formula is set, and its expression is:

[0019] Y=a0+a1*x+a2*x 2 +...+am*x m

[0020] In the above formula, x is the independent variable, i.e. the set unit flow value, Y is the variable, representing the total flow value, a1, a2, ..., am are the regression coefficients corresponding to multiple working points; a0 is the set fixed coefficient;

[0021] That is, when the total flow value is determined, the unit flow value for the normal operation of the coolant in the liquid cooling system is calculated;

[0022] Then, according to the temperature data, the flow balance calculation formula is set, and its expression is:

[0023]

[0024] b1, b2, ..., bn are weight values ​​of unit flow corresponding to working points 1 to n, b(n+1), b(n+2), ..., b(n+r) are weight values ​​of unit flow corresponding to working points n+1 to n+r; b(n+r+1), b(n+r+2), ..., b(n+r+s) are weight values ​​of unit flow corresponding to working points n+r+1 to n+r+s;

[0025] Where n+r+s≤m, k-1≥3, Q is the temperature data T α The weight value, T α is the temperature value corresponding to the working point, α is 1, 2, ..., k, represents the temperature value at the αth monitoring point, k ≥ 4, k represents the total number of monitoring points; x α It represents the modified unit flow corresponding to working points 1 to n, n+1 to n+r, n+r+1 to n+r+s. The modified unit flow is used as the flow balance distribution value at working points 1 to n+r+s, where n, r, and s represent the dividing points of different working points.

[0026] Furthermore, according to the set flow balance degree-flow distribution operation parameter matching model, the flow of the coolant in the cold system is distributed and adjusted according to the flow balance distribution value, including:

[0027] Construct a traffic balance-traffic distribution operation parameter matching model;

[0028] According to the flow balance distribution value, the flow balance degree is obtained, and according to the flow balance degree-flow distribution operation parameter matching model, the flow distribution operation parameters matching the flow balance degree are obtained, and according to the flow distribution operation parameters, the coolant distribution of the liquid cooling system is implemented.

[0029] Furthermore, a flow balance-flow distribution operation parameter matching model is constructed, including:

[0030] Obtain an adjustable flow lower limit value and an adjustable flow upper limit value of the total flow value of the coolant;

[0031] According to the historical flow balance distribution value, the lower limit value of the adjustable flow and the upper limit value of the adjustable flow are divided by the flow balance distribution value to obtain a first settlement result and a second calculation result; a number of intermediate values ​​are set between the first settlement result and the second settlement result as the flow balance degree;

[0032] The energy efficiency of the charging pile working equipment during the implementation of the coolant distribution of the liquid cooling system is taken as the optimization target, and the operating conditions of the coolant distribution of the liquid cooling system are taken as the decision variables to construct a nonlinear mathematical model.

[0033] Solving the nonlinear mathematical model, obtaining the flow distribution operation parameters under the optimal flow distribution operation conditions that meet the constraint conditions;

[0034] The polynomial regression algorithm is used to construct the flow balance-flow distribution operation parameter matching model.

[0035] Furthermore, it also includes monitoring and evaluating the real-time data of traffic distribution, and building an adaptive balancing control strategy based on the evaluation results, including:

[0036] The real-time data of coolant flow distribution is collected through the set monitoring unit to obtain real-time flow distribution data:

[0037] Extracting the characteristics of flow distribution changes from the real-time flow distribution data, thereby obtaining flow distribution change characteristic data;

[0038] According to the real-time flow distribution data and the flow distribution change characteristic data, the coolant flow loss is evaluated to obtain the coolant flow loss evaluation data;

[0039] According to the flow distribution change characteristic data, the coolant distribution flow demand of the set period is estimated to obtain the coolant distribution flow demand estimation data;

[0040] According to the coolant flow loss evaluation data and the coolant distribution flow demand estimation data, combined with the adjustable flow lower limit and adjustable flow upper limit of the total coolant flow value, an adaptive control model is established to control the replenishment of the total coolant so as to control the total coolant flow value to meet the coolant distribution flow demand.

[0041] A coolant distribution monitoring device for a liquid cooling system, comprising:

[0042] The temperature data acquisition module is used to monitor and acquire the temperature data of the working equipment of the charging pile in real time using a set temperature sensor;

[0043] The flow data acquisition module is used to monitor and acquire the flow data of the coolant in the liquid cooling system in real time based on the set flow meter and pressure sensor;

[0044] A flow balance distribution value acquisition module is used to calculate the flow balance distribution values ​​of multiple working points in the coolant delivery pipeline through which the coolant of the liquid cooling system flows based on the temperature data and the flow data using a set flow balance calculation formula;

[0045] The flow distribution adjustment implementation module is used to distribute and adjust the flow of the coolant in the cold system according to the set flow balance degree-flow distribution operation parameter matching model and the flow balance distribution value.

[0046] Furthermore, the flow distribution adjustment implementation module also includes a valve control unit, which is used to control the valve to adjust according to the set opening angle when the flow of the coolant in the cooling system is distributed and adjusted, so as to achieve the control of the coolant flow, and specifically includes: a controller, a valve driver and a sensor for detecting and obtaining valve opening and closing state data, and a processor is connected to the sensor and the valve driver;

[0047] The controller receives the valve opening and closing state data sent by the sensor, obtains the flow distribution adjustment value based on the set correspondence relationship library between the flow distribution adjustment value and the valve opening and closing angle value, and generates a corresponding drive command;

[0048] The controller drives the valve driver to work according to the driving command, and adjusts the valve opening and closing angle value to an opening and closing angle that meets the adjustment requirements.

[0049] A charging pile includes a memory and a processor, wherein the memory is used to store information including program instructions, and the processor is used to control the execution of the program instructions. The program instructions are loaded by the processor and execute the steps of a method for monitoring the distribution of coolant in a liquid cooling system.

[0050] Compared with the prior art, the present invention has the following advantages and beneficial effects: by using the flow balance distribution value obtained according to the temperature data of the working equipment of the charging pile and the flow data of the coolant in the liquid cooling system, and utilizing the flow balance degree-flow distribution operation parameter matching model, the flow of the coolant in the cooling system is distributed and adjusted, thereby improving the accuracy of the coolant flow distribution in the liquid cooling system, which is beneficial to giving full play to the use efficiency of the coolant and improving the working efficiency and quality of the liquid cooling system.

[0051] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0052] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0054] Figure 1A schematic diagram of the steps of a method for monitoring coolant distribution in a liquid cooling system;

[0055] Figure 2 A schematic diagram of the method steps for distributing and adjusting the flow rate of the cooling system coolant;

[0056] Figure 3 The present invention is a schematic diagram of the structure of a coolant distribution monitoring device for a liquid cooling system. DETAILED DESCRIPTION

[0057] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0058] The present invention provides a method for monitoring the distribution of coolant in a liquid cooling system. Figure 1 As shown, it includes: using a set temperature sensor to monitor and obtain temperature data of the working equipment of the charging pile in real time;

[0059] Based on the set flow meter and pressure sensor, the flow data of the coolant in the liquid cooling system is monitored in real time;

[0060] Based on the temperature data and the flow data, the flow balance calculation formula is used to calculate the flow balance distribution values ​​of multiple working points in the coolant delivery pipeline through which the coolant of the liquid cooling system flows;

[0061] According to the set flow balance degree-flow distribution operation parameter matching model, the flow of the coolant in the cold system is distributed and adjusted according to the flow balance distribution value.

[0062] The working principle of the above technical solution is: in order to realize the coolant distribution monitoring of the liquid cooling system, the present invention first uses the set temperature sensor to monitor and obtain the temperature data of the working equipment of the charging pile in real time; then based on the set flow meter and pressure sensor, the flow data of the coolant of the liquid cooling system is monitored and obtained in real time; thereafter, based on the temperature data and flow data, the set flow balance calculation formula is used to calculate the flow balance distribution values ​​of multiple working points in the coolant delivery pipeline through which the coolant of the liquid cooling system flows; finally, according to the set flow balance degree-flow distribution operation parameter matching model, the flow of the coolant of the cooling system is distributed and adjusted according to the flow balance distribution value.

[0063] The beneficial effect of the above technical scheme is: by adopting the scheme provided in this embodiment, according to the temperature data of the working equipment of the charging pile and the flow data of the coolant of the liquid cooling system, and according to the flow balance distribution value obtained by calculation, the flow balance degree-flow distribution operation parameter matching model is used to distribute and adjust the flow of the coolant in the cooling system, thereby improving the accuracy of the coolant flow distribution of the liquid cooling system, which is conducive to giving full play to the use efficiency of the coolant and improving the working efficiency and quality of the liquid cooling system.

[0064] In one embodiment, a set temperature sensor is used to monitor and obtain temperature data of a working device of a charging pile in real time, including:

[0065] Temperature sensors are arranged at multiple monitoring points of the working equipment of the charging pile; and temperature data of the working equipment of the charging pile is obtained by using the arranged temperature sensors;

[0066] Among them, multiple monitoring points are set based on flow velocity change data in the flow history monitoring record data of the coolant in the coolant delivery pipeline; the flow velocity change node that generates the flow velocity change data is obtained, and the position of the working equipment in the coolant delivery pipeline corresponding to the flow velocity change node is used as the first monitoring point; according to the flow velocity change data, the duration of maintaining the fixed flow velocity is obtained, and the first duration greater than the set duration threshold is obtained, and one or more flow velocity monitoring points are divided and set on the stage delivery pipeline in the coolant delivery pipeline corresponding to the fixed flow velocity corresponding to the first duration, and the position of the working equipment on the stage delivery pipeline corresponding to the flow velocity monitoring point is used as the second monitoring point; the first monitoring point and the second monitoring point are used as monitoring points for laying temperature sensors.

[0067] The working principle of the above technical solution is as follows: in order to obtain the temperature data of the working equipment of the charging pile, the present invention arranges temperature sensors at multiple monitoring points of the working equipment of the charging pile; the temperature data of the working equipment of the charging pile is obtained by using the arranged temperature sensors; in the selection of the monitoring points of the temperature sensors, it is set based on the flow velocity change data in the flow history monitoring record data of the coolant in the coolant delivery pipeline; the flow velocity change node that generates the flow velocity change data is obtained, and the position of the working equipment in the coolant delivery pipeline corresponding to the flow velocity change node is used as the first arranged monitoring point; according to the flow velocity change data, the duration of maintaining the fixed flow velocity is obtained, and the first duration whose duration is greater than the set duration threshold is obtained, and one or more flow velocity monitoring points are divided and set on the stage delivery pipeline in the coolant delivery pipeline corresponding to the fixed flow velocity corresponding to the first duration, and the position of the working equipment on the stage delivery pipeline corresponding to the flow velocity monitoring point is used as the second arranged monitoring point; the first arranged monitoring point and the second arranged monitoring point are used as the monitoring points for arranging the temperature sensor.

[0068] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, by deploying temperature sensors at multiple monitoring points of the working equipment of the charging pile, accurate temperature data of the working equipment of the charging pile can be obtained using the deployed temperature sensors.

[0069] In one embodiment, based on a set flow meter and pressure sensor, real-time monitoring and acquisition of flow data of coolant in a liquid cooling system include:

[0070] A flow meter and a pressure sensor are arranged on multiple valves in a coolant delivery pipeline of a liquid cooling system, the flow meter is used to measure and obtain first flow data, the pressure sensor is used to sense and obtain second flow data, and the first flow data and the second flow data are aggregated to obtain flow data;

[0071] The first flow data is obtained by direct measurement, and the second flow data is obtained by conversion processing based on a processor connected to the pressure sensor.

[0072] The working principle of the above technical solution is: in order to obtain the flow data of the coolant in the liquid cooling system, the present invention sets a flow meter and a pressure sensor on multiple valves in the coolant delivery pipeline of the liquid cooling system, uses the flow meter to measure to obtain the first flow data, uses the pressure sensor to sense to obtain the second flow data, and summarizes the first flow data and the second flow data to obtain the flow data; wherein, the first flow data is obtained by direct measurement, and the second flow data is obtained by conversion processing based on a processor connected to the pressure sensor.

[0073] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, accurate flow data can be obtained through different measurements and collections by the flow meter and the pressure sensor.

[0074] In one embodiment, based on the temperature data and the flow data, the flow balance distribution values ​​of the multiple working points through which the coolant of the liquid cooling system flows are calculated using a set flow balance calculation formula, including:

[0075] Based on the polynomial regression equation, the flow calculation formula is set, and its expression is:

[0076] Y=a0+a1*x+a2*x 2 +...+am*x m

[0077] In the above formula, x is the independent variable, i.e. the set unit flow value, Y is the variable, representing the total flow value, a1, a2, ..., am are the regression coefficients corresponding to multiple working points; a0 is the set fixed coefficient;

[0078] That is, when the total flow value is determined, the unit flow value for the normal operation of the coolant in the liquid cooling system is calculated;

[0079] Then, according to the temperature data, the flow balance calculation formula is set, and its expression is:

[0080]

[0081] b1, b2, ..., bn are weight values ​​of unit flow corresponding to working points 1 to n, b(n+1), b(n+2), ..., b(n+r) are weight values ​​of unit flow corresponding to working points n+1 to n+r; b(n+r+1), b(n+r+2), ..., b(n+r+s) are weight values ​​of unit flow corresponding to working points n+r+1 to n+r+s;

[0082] Where n+r+s≤m, k-1≥3, Q is the temperature data T α The weight value, T α is the temperature value corresponding to the working point, α is 1, 2, ..., k, represents the temperature value at the αth monitoring point, k ≥ 4, k represents the total number of monitoring points; x α It represents the modified unit flow corresponding to working points 1 to n, n+1 to n+r, n+r+1 to n+r+s. The modified unit flow is used as the flow balance distribution value at working points 1 to n+r+s, where n, r, and s represent the dividing points of different working points.

[0083] The working principle of the above technical solution is: in order to realize the calculation of the flow balance distribution value of multiple working points through which the coolant of the liquid cooling system flows, the present invention first sets a flow calculation formula based on a polynomial regression equation, and its expression is:

[0084] Y=a0+a1*x+a2*x 2 +...+am*x m

[0085] In the above formula, x is the independent variable, i.e. the set unit flow value, Y is the variable, representing the total flow value, a1, a2, ..., am are the regression coefficients corresponding to multiple working points; a0 is the set fixed coefficient;

[0086] That is, when the total flow value is determined, the unit flow value for the normal operation of the coolant in the liquid cooling system is calculated;

[0087] Then, according to the temperature data, the flow balance calculation formula is set, and its expression is:

[0088]

[0089] b1, b2, ..., bn are weight values ​​of unit flow corresponding to working points 1 to n, b(n+1), b(n+2), ..., b(n+r) are weight values ​​of unit flow corresponding to working points n+1 to n+r; b(n+r+1), b(n+r+2), ..., b(n+r+s) are weight values ​​of unit flow corresponding to working points n+r+1 to n+r+s;

[0090] Where n+r+s≤m, k-1≥3, Q is the temperature data T α The weight value, T α is the temperature value corresponding to the working point, α is 1, 2, ..., k, represents the temperature value at the αth monitoring point, k ≥ 4, k represents the total number of monitoring points; x α It represents the modified unit flow corresponding to working points 1 to n, n+1 to n+r, n+r+1 to n+r+s. The modified unit flow is used as the flow balance distribution value at working points 1 to n+r+s, where n, r, and s represent the dividing points of different working points.

[0091] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, the unit flow value and the corrected unit flow are obtained through the calculation formula, and then the flow balance distribution value is obtained, which can provide a reference and accurate basis for subsequent flow distribution.

[0092] In one embodiment, Figure 2 As shown, according to the set flow balance degree-flow distribution operation parameter matching model, the flow of the cooling system coolant is distributed and adjusted according to the flow balance distribution value, including:

[0093] Construct a traffic balance-traffic distribution operation parameter matching model;

[0094] According to the flow balance distribution value, the flow balance degree is obtained, and according to the flow balance degree-flow distribution operation parameter matching model, the flow distribution operation parameters matching the flow balance degree are obtained, and according to the flow distribution operation parameters, the coolant distribution of the liquid cooling system is implemented.

[0095] The working principle of the above technical solution is: in order to implement the distribution and adjustment of the flow of coolant in the cooling system, the present invention first constructs a flow balance-flow distribution operation parameter matching model; then, according to the flow balance distribution value, the flow balance is obtained, and according to the flow balance-flow distribution operation parameter matching model, the flow distribution operation parameters matching the flow balance are obtained, and according to the flow distribution operation parameters, the coolant distribution of the liquid cooling system is implemented.

[0096] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, by utilizing the flow balance-flow distribution operating parameter matching model; and then according to the flow distribution operating parameters and the flow balance distribution value, the coolant distribution of the liquid cooling system is implemented, thereby ensuring the balance of the distribution of the coolant in the liquid cooling system.

[0097] In one embodiment, building a flow balance-flow distribution operation parameter matching model includes:

[0098] Obtain an adjustable flow lower limit value and an adjustable flow upper limit value of the total flow value of the coolant;

[0099] According to the historical flow balance distribution value, the lower limit value of the adjustable flow and the upper limit value of the adjustable flow are divided by the flow balance distribution value to obtain a first settlement result and a second calculation result; a number of intermediate values ​​are set between the first settlement result and the second settlement result as the flow balance degree;

[0100] The energy efficiency of the charging pile working equipment during the implementation of the coolant distribution of the liquid cooling system is taken as the optimization target, and the operating conditions of the coolant distribution of the liquid cooling system are taken as the decision variables to construct a nonlinear mathematical model.

[0101] Solving the nonlinear mathematical model, obtaining the flow distribution operation parameters under the optimal flow distribution operation conditions that meet the constraint conditions;

[0102] The polynomial regression algorithm is used to construct the flow balance-flow distribution operation parameter matching model.

[0103] The working principle of the above technical solution is as follows: in order to construct a flow balance-flow distribution operating parameter matching model, the present invention first obtains the adjustable flow lower limit value and the adjustable flow upper limit value of the total flow value of the coolant; then, according to the historical flow balance distribution value, the adjustable flow lower limit value and the adjustable flow upper limit value are divided by the flow balance distribution value respectively to obtain a first settlement result and a second calculation result; a number of intermediate values ​​are set between the first settlement result and the second settlement result as the flow balance degree; finally, the energy efficiency of the charging pile working equipment during the implementation of the coolant distribution of the liquid cooling system is taken as the optimization target, and the operating conditions of the coolant distribution of the liquid cooling system are taken as the decision variables to construct a nonlinear mathematical model; and the nonlinear mathematical model is solved to obtain the flow distribution operating parameters under the optimal flow distribution operating conditions that meet the constraints; finally, a polynomial regression algorithm is used to construct a flow balance-flow distribution operating parameter matching model.

[0104] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, by constructing a flow balance-flow distribution operation parameter matching model, effective control of the coolant flow distribution can be achieved.

[0105] In one embodiment, the real-time data of traffic distribution is monitored and evaluated, and an adaptive balancing control strategy is constructed according to the evaluation results, specifically including:

[0106] The real-time data of coolant flow distribution is collected through the set monitoring unit to obtain real-time flow distribution data:

[0107] Extracting the characteristics of flow distribution changes from the real-time flow distribution data, thereby obtaining flow distribution change characteristic data;

[0108] According to the real-time flow distribution data and the flow distribution change characteristic data, the coolant flow loss is evaluated to obtain the coolant flow loss evaluation data;

[0109] According to the flow distribution change characteristic data, the coolant distribution flow demand of the set period is estimated to obtain the coolant distribution flow demand estimation data;

[0110] According to the coolant flow loss evaluation data and the coolant distribution flow demand estimation data, combined with the adjustable flow lower limit and adjustable flow upper limit of the total coolant flow value, an adaptive control model is established to control the replenishment of the total coolant so as to control the total coolant flow value to meet the coolant distribution flow demand.

[0111] The working principle of the above technical solution is: in order to realize the monitoring and evaluation of the real-time data of flow distribution and construct an adaptive balancing control strategy according to the evaluation results, the present invention first collects the real-time data of coolant flow distribution through a set monitoring unit to obtain real-time flow distribution data: then extracts the characteristics of flow distribution changes from the real-time flow distribution data, thereby obtaining flow distribution change characteristic data; thereafter, based on the real-time flow distribution data and the flow distribution change characteristic data, the coolant flow loss is evaluated to obtain coolant flow loss evaluation data; finally, based on the flow distribution change characteristic data, the coolant distribution flow demand of the set period is estimated to obtain coolant distribution flow demand estimation data; based on the coolant flow loss evaluation data and the coolant distribution flow demand estimation data, an adaptive control model is established in combination with the adjustable flow lower limit value and the adjustable flow upper limit value of the total flow value of the coolant to control the total flow value of the coolant to meet the demand for coolant distribution flow.

[0112] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, by monitoring and evaluating the real-time data of flow distribution, an adaptive balance control strategy is constructed according to the evaluation results, and the replenishment of the total amount of coolant can be controlled so as to control the flow value of the total amount of coolant to meet the demand of coolant distribution flow.

[0113] A cooling liquid distribution monitoring device for a liquid cooling system, such as Figure 3 As shown, including:

[0114] The temperature data acquisition module is used to monitor and acquire the temperature data of the working equipment of the charging pile in real time using a set temperature sensor;

[0115] The flow data acquisition module is used to monitor and acquire the flow data of the coolant in the liquid cooling system in real time based on the set flow meter and pressure sensor;

[0116] A flow balance distribution value acquisition module is used to calculate the flow balance distribution values ​​of multiple working points in the coolant delivery pipeline through which the coolant of the liquid cooling system flows based on the temperature data and the flow data and using a set flow balance calculation formula;

[0117] The flow distribution adjustment implementation module is used to distribute and adjust the flow of the coolant in the cold system according to the set flow balance degree-flow distribution operation parameter matching model and the flow balance distribution value.

[0118] The working principle of the above technical solution is: in order to realize the coolant distribution monitoring device of the liquid cooling system, the present invention sets a temperature data acquisition module, which is used to use the set temperature sensor to monitor and obtain the temperature data of the working equipment of the charging pile in real time; a flow data acquisition module is set, which is used to monitor and obtain the flow data of the coolant of the liquid cooling system in real time based on the set flow meter and pressure sensor; a flow balance distribution value acquisition module is set, which is used to calculate the flow balance distribution values ​​of multiple working points in the coolant delivery pipeline through which the coolant of the liquid cooling system flows based on the temperature data and flow data, using the set flow balance calculation formula; a flow distribution adjustment implementation module is set, which is used to distribute and adjust the flow of the coolant of the cooling system according to the flow balance distribution value according to the set flow balance degree-flow distribution operation parameter matching model.

[0119] The beneficial effect of the above technical scheme is: by adopting the scheme provided in this embodiment, according to the temperature data of the working equipment of the charging pile and the flow data of the coolant of the liquid cooling system, and according to the flow balance distribution value obtained by calculation, the flow balance degree-flow distribution operation parameter matching model is used to distribute and adjust the flow of the coolant in the cooling system, thereby improving the accuracy of the coolant flow distribution of the liquid cooling system, which is conducive to giving full play to the use efficiency of the coolant and improving the working efficiency and quality of the liquid cooling system.

[0120] In one embodiment, a valve control unit is provided for controlling the valve to adjust according to a set opening angle when distributing and adjusting the flow of coolant in the cooling system, so as to achieve control of the flow of coolant, and specifically includes: a controller, a valve driver and a sensor for detecting and obtaining valve opening and closing state data, and a processor connecting the sensor and the valve driver; the controller receives the valve opening and closing state data sent by the sensor, and obtains the flow distribution adjustment value based on a correspondence library between the set flow distribution adjustment value and the valve opening and closing angle value, and generates a corresponding drive command; the controller drives the valve driver to work according to the drive command, and adjusts the valve opening and closing angle value to an opening and closing angle that meets the adjustment requirements.

[0121] The working principle of the above technical solution is as follows: in order to achieve precise distribution and adjustment of the flow rate of the coolant in the cooling system, the present invention sets a valve control unit for controlling the valve to adjust according to the set opening angle when distributing and adjusting the flow rate of the coolant in the cooling system, so as to achieve control of the coolant flow rate, specifically including: a controller, a valve driver and a sensor for detecting and obtaining valve opening and closing state data, and a processor connecting the sensor and the valve driver; the controller receives the valve opening and closing state data sent by the sensor, and obtains the flow distribution adjustment value based on the correspondence library between the set flow distribution adjustment value and the valve opening and closing angle value, and generates a corresponding drive command; the controller drives the valve driver to work according to the drive command, and adjusts the valve opening and closing angle value to an opening and closing angle that meets the adjustment requirements.

[0122] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, by setting a valve control unit, the valve opening and closing angle value can be adjusted to an opening and closing angle that meets the adjustment requirements, so as to achieve effective control of flow distribution.

[0123] A charging pile includes a memory and a processor, wherein the memory is used to store information including program instructions, and the processor is used to control the execution of the program instructions. The program instructions are loaded by the processor and execute the steps of a method for monitoring the distribution of coolant in a liquid cooling system.

[0124] The working principle of the above technical solution is: the present invention sets up a memory and a processor, the memory is used to store information including program instructions, and the processor is used to control the execution of program instructions, so as to realize the loading and execution of the steps of a method for monitoring the coolant distribution of a liquid cooling system.

[0125] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, the steps of the coolant distribution monitoring method of the liquid cooling system can be loaded and executed through the memory and processor in the charging pile.

[0126] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A method for monitoring coolant distribution in a liquid cooling system, It is characterized in that include: Use the set temperature sensor to monitor and obtain the temperature data of the working equipment of the charging pile in real time; Based on the set flow meter and pressure sensor, the flow data of the coolant in the liquid cooling system is monitored in real time; Based on the temperature data and the flow data, the flow balance calculation formula is used to calculate the flow balance distribution values ​​of multiple working points in the coolant delivery pipeline through which the coolant of the liquid cooling system flows; According to the set flow balance degree-flow distribution operation parameter matching model, the flow of the coolant in the cold system is distributed and adjusted according to the flow balance distribution value; Use the set temperature sensor to monitor and obtain the temperature data of the working equipment of the charging pile in real time, including: Temperature sensors are arranged at multiple monitoring points of the working equipment of the charging pile; and temperature data of the working equipment of the charging pile is obtained by using the arranged temperature sensors; Wherein, the plurality of monitoring points are set based on flow rate change data in the flow history monitoring record data of the coolant in the coolant delivery pipeline; Obtain a flow rate change node that generates flow rate change data, and use the position of the working equipment in the coolant delivery pipeline corresponding to the flow rate change node as the first monitoring point; According to the flow rate change data, the duration of maintaining the fixed flow rate is obtained, and the first duration whose duration is greater than the set duration threshold is obtained. One or more flow rate monitoring points are divided and set on the stage delivery pipeline in the coolant delivery pipeline corresponding to the fixed flow rate corresponding to the first duration, and the position of the working equipment on the stage delivery pipeline corresponding to the flow rate monitoring point is used as the second monitoring point; the first monitoring point and the second monitoring point are used as monitoring points for arranging the temperature sensor; Based on the temperature data and flow data, the set flow balance calculation formula is used to calculate the flow balance distribution values ​​of multiple working points through which the coolant of the liquid cooling system flows, including: Set the flow calculation formula, which is expressed as: Y=a 0 +a 1 *x+a 2 *x 2 +...+a m *x m In the above formula, x is the unit flow value; Y represents the total flow value, a 1 、a 2 , ..., a m is the regression coefficient corresponding to multiple working points; a 0 is the fixed coefficient set; That is, when the total flow value is determined, the unit flow value for the normal operation of the coolant in the liquid cooling system is calculated; Then, according to the temperature data, the flow balance calculation formula is set, and its expression is: b 1 , b 2 , ..., b n is the weight value of the unit flow corresponding to the working point 1 to n, b n+1 , b n+2 , ..., b n+r is the weight value of the unit flow corresponding to the working point n+1 to n+r; b n+r+1 , b n+r+2 , ..., b n+r+s is the weight value of the unit flow corresponding to the working point n+r+1 to n+r+s; Where n+r+s≤m, k-1≥3, Q is the temperature data T α The weight value, T α is the temperature value corresponding to the working point, α is 1, 2, ..., k, represents the temperature value at the αth monitoring point, k ≥ 4, k represents the total number of monitoring points; x α It represents the modified unit flow corresponding to working points 1 to n, n+1 to n+r, n+r+1 to n+r+s. The modified unit flow is used as the flow balance distribution value at working points 1 to n+r+s, where n, r, and s represent the dividing points of different working points.

2. A method for monitoring coolant distribution in a liquid cooling system according to claim 1, It is characterized in that Based on the set flow meter and pressure sensor, the flow data of the coolant in the liquid cooling system is monitored in real time, including: A flow meter and a pressure sensor are arranged on multiple valves in a coolant delivery pipeline of a liquid cooling system, the flow meter is used to measure and obtain first flow data, the pressure sensor is used to sense and obtain second flow data, and the first flow data and the second flow data are aggregated to obtain flow data; The first flow data is obtained by direct measurement, and the second flow data is obtained by conversion processing based on a processor connected to the pressure sensor.

3. A method for monitoring coolant distribution in a liquid cooling system according to claim 1, It is characterized in that According to the set flow balance degree-flow distribution operation parameter matching model, the flow of the cooling system coolant is distributed and adjusted according to the flow balance distribution value, including: Construct a traffic balance-traffic distribution operation parameter matching model; According to the flow balance distribution value, the flow balance degree is obtained, and according to the flow balance degree-flow distribution operation parameter matching model, the flow distribution operation parameters matching the flow balance degree are obtained, and according to the flow distribution operation parameters, the coolant distribution of the liquid cooling system is implemented.

4. A method for monitoring coolant distribution in a liquid cooling system according to claim 3, It is characterized in that Construct a traffic balance-traffic distribution operation parameter matching model, including: Obtain an adjustable flow lower limit value and an adjustable flow upper limit value of the total flow value of the coolant; According to the historical flow balance distribution value, the lower limit value of the adjustable flow and the upper limit value of the adjustable flow are divided by the flow balance distribution value to obtain a first settlement result and a second calculation result; a number of intermediate values ​​are set between the first settlement result and the second settlement result as the flow balance degree; The energy efficiency of the charging pile working equipment during the implementation of the coolant distribution of the liquid cooling system is taken as the optimization target, and the operating conditions of the coolant distribution of the liquid cooling system are taken as the decision variables to construct a nonlinear mathematical model. Solving the nonlinear mathematical model, obtaining the flow distribution operation parameters under the optimal flow distribution operation conditions that meet the constraint conditions; The polynomial regression algorithm is used to construct the flow balance-flow distribution operation parameter matching model.

5. A method for monitoring coolant distribution in a liquid cooling system according to claim 4, It is characterized in that It also includes monitoring and evaluating the real-time data of traffic distribution, and building an adaptive balancing control strategy based on the evaluation results, including: The real-time data of coolant flow distribution is collected through the set monitoring unit to obtain real-time flow distribution data: Extracting the characteristics of flow distribution changes from the real-time flow distribution data, thereby obtaining flow distribution change characteristic data; According to the real-time flow distribution data and the flow distribution change characteristic data, the coolant flow loss is evaluated to obtain the coolant flow loss evaluation data; According to the flow distribution change characteristic data, the coolant distribution flow demand of the set period is estimated to obtain the coolant distribution flow demand estimation data; According to the coolant flow loss evaluation data and the coolant distribution flow demand estimation data, combined with the adjustable flow lower limit and adjustable flow upper limit of the total coolant flow value, an adaptive control model is established to control the replenishment of the total coolant so as to control the total coolant flow value to meet the coolant distribution flow demand.

6. A coolant distribution monitoring device for a liquid cooling system, It is characterized in that include: The temperature data acquisition module is used to monitor and acquire the temperature data of the working equipment of the charging pile in real time using a set temperature sensor; Temperature sensors are arranged at multiple monitoring points of the working equipment of the charging pile; and temperature data of the working equipment of the charging pile is obtained by using the arranged temperature sensors; Wherein, the plurality of monitoring points are set based on flow rate change data in the flow history monitoring record data of the coolant in the coolant delivery pipeline; Obtain a flow rate change node that generates flow rate change data, and use the position of the working equipment in the coolant delivery pipeline corresponding to the flow rate change node as the first monitoring point; According to the flow rate change data, the duration of maintaining the fixed flow rate is obtained, and the first duration whose duration is greater than the set duration threshold is obtained. One or more flow rate monitoring points are divided and set on the stage delivery pipeline in the coolant delivery pipeline corresponding to the fixed flow rate corresponding to the first duration, and the position of the working equipment on the stage delivery pipeline corresponding to the flow rate monitoring point is used as the second monitoring point; the first monitoring point and the second monitoring point are used as monitoring points for arranging the temperature sensor; The flow data acquisition module is used to monitor and acquire the flow data of the coolant in the liquid cooling system in real time based on the set flow meter and pressure sensor; Based on the temperature data and flow data, the set flow balance calculation formula is used to calculate the flow balance distribution values ​​of multiple working points through which the coolant of the liquid cooling system flows, including: Set the flow calculation formula, which is expressed as: Y=a 0 +a 1 *x+a 2 *x 2 +...+a m *x m In the above formula, x is the unit flow value; Y represents the total flow value, a 1 、a 2 , ..., a m is the regression coefficient corresponding to multiple working points; a 0 is the fixed coefficient set; That is, when the total flow value is determined, the unit flow value for the normal operation of the coolant in the liquid cooling system is calculated; Then, according to the temperature data, the flow balance calculation formula is set, and its expression is: b 1 、b 2 , ..., b n is the weight value of the unit flow corresponding to the working point 1 to n, b n+1 、b n+2 , ..., b n+r is the weight value of the unit flow corresponding to the working point n+1 to n+r; b n+r+1 、b n+r+2 , ..., b n+r+s is the weight value of the unit flow corresponding to the working point n+r+1 to n+r+s; Where n+r+s≤m, k-1≥3, Q is the temperature data T α The weight value, T α is the temperature value corresponding to the working point, α is 1, 2, ..., k, represents the temperature value at the αth monitoring point, k ≥ 4, k represents the total number of monitoring points; x α Represents the modified unit flow corresponding to the working points 1 to n, n+1 to n+r, n+r+1 to n+r+s, and uses the modified unit flow as the flow balance distribution value at the working points 1 to n+r+s, where n, r, and s represent the dividing points of different working points; A flow balance distribution value acquisition module is used to calculate the flow balance distribution values ​​of multiple working points in the coolant delivery pipeline through which the coolant of the liquid cooling system flows based on the temperature data and the flow data using a set flow balance calculation formula; The flow distribution adjustment implementation module is used to distribute and adjust the flow of the coolant in the cold system according to the set flow balance degree-flow distribution operation parameter matching model and the flow balance distribution value.

7. A coolant distribution monitoring device for a liquid cooling system according to claim 6, It is characterized in that The flow distribution adjustment implementation module also includes a valve control unit, which is used to control the valve to adjust according to the set opening angle when the flow of the coolant in the cooling system is distributed and adjusted, so as to control the flow of the coolant, and specifically includes: a controller, a valve driver and a sensor for detecting and obtaining valve opening and closing state data, and a processor connects the sensor and the valve driver; The controller receives the valve opening and closing state data sent by the sensor, obtains the flow distribution adjustment value based on the set correspondence relationship library between the flow distribution adjustment value and the valve opening and closing angle value, and generates a corresponding drive command; The controller drives the valve driver to work according to the driving command, and adjusts the valve opening and closing angle value to an opening and closing angle that meets the adjustment requirements.

8. A charging pile, comprising a memory and a processor, wherein the memory is used to store information including program instructions, and the processor is used to control the execution of the program instructions. It is characterized in that When the program instructions are loaded and executed by the processor, the steps of the method for monitoring coolant distribution in a liquid cooling system as described in any one of claims 1 to 5 are implemented.

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