Automatic liquid supplementing cart for energy storage liquid cooling unit

Abstract

An automatic liquid supplementing cart for an energy storage liquid cooling unit comprises a cart body, a liquid supplementing box used for storing cooling liquid is arranged in the cart body, and idler wheels are arranged at the bottom of the cart body; the trolley robot is used for pushing the trolley body and connecting or disconnecting the liquid supplementing box and the energy storage liquid cooling unit; the monitoring module is arranged on the liquid supplementing tank and is used for collecting and monitoring working condition information of a preset type in the liquid supplementing tank; the interactive interface module is arranged on the vehicle body, is in communication connection with the monitoring module, and is used for displaying the working condition information acquired by the monitoring module and inputting a control instruction; and the execution module is arranged on the vehicle body, is in communication connection with the interactive interface module, and is used for executing preset types of processing on the cooling liquid stored in the liquid supplementing box according to the control instruction.

Description

Technical Field

[0001] The present invention relates to the field of energy storage thermal management, and in particular to an automatic liquid replenishing cart for an energy storage liquid cooling unit. Background Art

[0002] With the growing demand for efficient use of renewable energy and grid stability around the world, energy storage cooling technology has become one of the important directions of technological innovation. Liquid cooling systems have gradually become the main solution for heat dissipation of energy-intensive equipment due to their efficient thermal management performance. Compared with traditional air cooling, liquid cooling technology has higher thermal conduction efficiency and energy-saving potential, which can effectively reduce system temperature, reduce energy consumption, and extend equipment life. Especially with the advancement of the country's "dual carbon" goals, the application of liquid cooling technology in different fields has continued to expand, becoming the key to promoting efficient and low-carbon development.

[0003] In the context of energy storage liquid cooling technology, the design and function of the refill cart as a key auxiliary equipment are crucial to the operating efficiency and safety of the liquid cooling system. Existing refill carts for energy storage liquid cooling units usually adopt a simple structural design, mainly consisting of a cart body, a refill container, an infusion pipeline, and related control components. These carts meet the basic needs of refilling the liquid cooling system to a certain extent, but there is still room for improvement in terms of refill efficiency, ease of operation, safety, and adaptability.

[0004] Therefore, providing an efficient, convenient, safe, reliable and adaptable automated fluid infusion cart is an urgent problem to be solved. Summary of the invention

[0005] The purpose of the present invention is to address the corresponding deficiencies of the prior art and to provide an automated fluid replenishment cart for an energy storage liquid cooling unit. The automated fluid replenishment operation of the liquid cooling unit is achieved through the cooperation of a robot and the fluid replenishment cart. The cart is equipped with a touch display screen and a voice interaction system for human-computer interaction, which can significantly improve the accuracy, efficiency and safety of the fluid replenishment process.

[0006] The objective of the present invention is achieved by adopting the following scheme: The present invention provides an automatic liquid replenishment cart for an energy storage liquid cooling unit, comprising: A vehicle body, wherein a refilling tank for storing coolant is provided in the vehicle body, and rollers are provided at the bottom of the vehicle body; A cart robot, used to push the cart body and connect or disconnect the liquid replenishing tank with the energy storage liquid cooling unit; A monitoring module, the monitoring module is installed on the liquid replenishment tank and is used to collect and monitor preset types of working condition information in the liquid replenishment tank; An interactive interface module, which is mounted on the vehicle body and is in communication connection with the monitoring module, and is used to display the operating condition information collected by the monitoring module and input control instructions; An execution module is installed on the vehicle body and is in communication connection with the interactive interface module, and is used for executing a preset type of processing on the coolant stored in the fluid replenishing tank according to the control instruction.

[0007] Furthermore, the fluid replenishment tank includes a tank body for storing coolant and a fluid replenishment pipe connected to the tank body for communicating with the energy storage liquid cooling unit, the execution module includes a water pump arranged in the fluid replenishment tank, the cart robot is used to connect the fluid replenishment pipe to the energy storage liquid cooling unit to connect the fluid replenishment tank with the energy storage liquid cooling unit, and the water pump is used to pump the coolant stored in the tank body into the energy storage liquid cooling unit when the fluid replenishment pipe is connected to the energy storage liquid cooling unit.

[0008] Furthermore, the fluid replenishment tank is provided with a liquid inlet for obtaining coolant, a fluid replenishment port for providing coolant to the energy storage liquid cooling unit, and a liquid discharge port for directly discharging the coolant, and the execution module also includes a flow path regulating valve assembly for selectively connecting the liquid inlet with the fluid replenishment port or the liquid discharge port.

[0009] Furthermore, the monitoring module includes a liquid level monitoring device for detecting the liquid level of the coolant in the box.

[0010] Furthermore, the water pump is also used to pump externally provided coolant into the box through the liquid inlet when the liquid level of the coolant in the box does not reach the allowed minimum liquid level.

[0011] Furthermore, the monitoring module also includes an impurity sensing device disposed in the box body for sensing impurities in the coolant in the box body.

[0012] Furthermore, the execution module also includes a filter set in the fluid replenishment tank, the water pump is connected to the filter through the flow regulating valve assembly, and the execution module is also used to control the water pump to drive the coolant in the tank to flow through the filter via the flow regulating valve assembly.

[0013] Furthermore, the liquid replenishing tank also includes a liquid inlet pipe connected to the liquid inlet; the cart robot is also used to connect the liquid inlet pipe to the energy storage liquid cooling unit, so that the liquid replenishing tank and the energy storage liquid cooling unit are connected through the liquid replenishing pipe and the liquid inlet pipe at the same time; the execution module is also used to control the water pump to drive the coolant to circulate in the order of the water pump-the flow path regulating valve assembly-the filter-the box body-the liquid replenishing pipe-energy storage liquid cooling unit-the liquid inlet pipe-the box body-the water pump when the liquid replenishing tank and the energy storage liquid cooling unit are connected through the liquid replenishing pipe and the liquid inlet pipe at the same time.

[0014] Furthermore, the monitoring module also includes a flow meter arranged in the liquid replenishing pipe for measuring the flow rate of the coolant provided to the energy storage liquid cooling unit, and a pressure sensor for measuring the hydraulic pressure of the coolant provided to the energy storage liquid cooling unit.

[0015] Furthermore, the box body is provided with an exhaust valve for exhausting the air in the box body.

[0016] The advantage of the present invention is that the refilling tank has diversified functions. It not only integrates basic functions such as liquid level monitoring, alarm, and conductivity detection, but also has practical functions such as exhaust, refilling, and draining, ensuring the stable operation of the liquid cooling system. The refilling cart has strong adaptability and can flexibly respond to various working conditions, thereby improving the efficiency and accuracy of refilling. The human-computer interactive touch display and voice interactive system attached to the cart make the refilling process more intuitive and convenient. The operator can easily set the refilling parameters through the touch screen, and the voice system can also provide real-time operation guidance and alarm information, effectively reducing the difficulty and risk of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of an automated liquid replenishment cart for an energy storage liquid cooling unit according to an embodiment of the present invention.

[0018] Figure 2 Schematic diagram of the internal three-dimensional structure of an automated liquid replenishment cart for an energy storage liquid cooling unit according to an embodiment of the present invention.

[0019] Figure 3 This is a control schematic diagram of an automated liquid replenishment cart for an energy storage liquid cooling unit according to an embodiment of the present invention. DETAILED DESCRIPTION

[0020] The automated refilling cart for an energy storage liquid cooling unit provided by the present invention can be applied to the charging of new energy vehicles. With the rapid growth of the new energy vehicle market, the construction of new energy vehicle charging infrastructure is becoming increasingly important. The automated refilling cart can be applied to energy storage devices in charging piles to provide them with necessary coolant replenishment, help reduce the operating temperature of the equipment, improve energy storage safety, ensure the stable operation of the charging station, and provide higher charging efficiency. In the industrial and manufacturing fields, many devices require the use of energy storage liquid cooling units to ensure their stable operation. The automated refilling cart can provide these devices with the necessary refilling support to ensure that they will not experience failures or shutdowns due to insufficient coolant during the production process.

[0021] like Figure 1-Figure 3 As shown, the present invention provides an automatic liquid replenishment cart for an energy storage liquid cooling unit, comprising: A vehicle body, wherein a fluid replenishing tank 10 for storing coolant is provided in the vehicle body, and a roller 20 is provided at the bottom of the vehicle body; A cart robot, used to push the cart body and connect or disconnect the liquid replenishing tank 10 with the energy storage liquid cooling unit; A monitoring module, which is installed on the liquid replenishing tank 10 and is used to collect and monitor preset types of working condition information in the liquid replenishing tank 10; An interactive interface module 30 is installed on the vehicle body and is in communication connection with the monitoring module, and is used to display the working condition information collected by the monitoring module and input control instructions. The user can drive the infusion cart to perform operations by clicking on the working mode on the screen or sending voice commands. The display screen can display the current state parameters such as the amount of liquid stored in the box 11, flow, pressure, conductivity, etc.; the display screen can set parameters such as the infusion speed and amount of infusion; the display screen can query alarm information, such as liquid level alarm, water pump 12 operation failure alarm, etc.; the display screen can collect historical data of various performance parameters, generate data record tables, and AI performs cloud computing and big data analysis, and then recommends the user the appropriate working mode or warning at the moment. In terms of sound feedback, the display screen has a special prompt sound when starting and stopping infusion, so that the user can understand the progress of infusion.

[0022] An execution module is installed on the vehicle body and is in communication with the interactive interface module, and is used to perform a preset type of processing on the coolant stored in the liquid replenishment tank 10 according to the control instruction. The liquid replenishment tank 10 performs liquid replenishment, liquid discharge, and circulation filtration operations, and the energy storage liquid cooling unit performs liquid replenishment, hydraulic performance detection, and circulation filtration operations.

[0023] Furthermore, the fluid replenishment tank 10 includes a box body 11 for storing coolant and a fluid replenishment pipe connected to the box body 11 and used to communicate with the energy storage liquid cooling unit. The execution module includes a water pump 12 arranged in the fluid replenishment tank 10. The cart robot is used to connect the fluid replenishment pipe to the energy storage liquid cooling unit to connect the fluid replenishment tank 10 with the energy storage liquid cooling unit. The water pump 12 is used to pump the coolant stored in the box body 11 into the energy storage liquid cooling unit when the fluid replenishment pipe is connected to the energy storage liquid cooling unit.

[0024] The refilling tank 10 is provided with a liquid inlet A for obtaining coolant, a liquid inlet B for providing coolant to the energy storage liquid cooling unit, and a liquid discharge port C for directly discharging the coolant, and the execution module also includes a flow path regulating valve assembly for selectively connecting the liquid inlet A with the liquid inlet B or the liquid discharge port C. The liquid inlet A is located at the side and bottom of the refilling tank 10, the liquid inlet B is located at the side of the refilling tank 10, and the liquid discharge port C is located at the bottom of the refilling tank 10. The flow path regulating valve assembly includes a check valve 13 and first to seventh solenoid valves 141-147, which are used to control the flow path of the coolant.

[0025] Furthermore, the execution module also includes a filter set in the refill tank 10, and the filter is preferably a Y-type filter 15 in this embodiment, which filters out impurities in the coolant through the filter screen. The water pump 12 is connected to the Y-type filter 15 through the flow path regulating valve assembly, and the execution module is also used to control the water pump 12 to drive the coolant in the box 11 to flow through the Y-type filter 15 via the flow path regulating valve assembly. The Y-type filter 15 is used to remove solid impurities in the fluid to protect valves, pumps and other equipment in the pipeline system from wear and blockage.

[0026] The water tank is self-circulated every 4 hours, and the first solenoid valve 141, the second solenoid valve 142, the third solenoid valve 143 and the water pump 12 are opened. The first solenoid valve 141 is connected between the box 11 and the water pump 12, and the second solenoid valve 142 and the third solenoid valve 143 are connected between the Y-type filter 15 and the box 11. The coolant in the box 11 passes through the water pump 12, the check valve 13 and the Y-type filter 15 in sequence and then returns to the box 11. This mode can filter the impurities in the coolant in the box 11 to prevent these impurities from wearing and clogging the accessories on the equipment pipeline, thereby effectively protecting the normal operation of the equipment.

[0027] The first solenoid valve 141, the fourth solenoid valve 144 and the water pump 12 are opened, the fourth solenoid valve 144 is connected between the Y-type filter 15 and the liquid replenishing port B, and the coolant in the box 11 passes through the water pump 12, the check valve 13, the Y-type filter 15 and the liquid replenishing port B in sequence. Through this mode, the energy storage liquid cooling unit can be replenished with coolant, avoiding problems such as overheating, performance degradation, or even failure caused by insufficient coolant.

[0028] The monitoring module includes a liquid level monitoring device for detecting the liquid level of the coolant in the box 11. The liquid level monitoring device includes a liquid level meter 111 and a liquid level switch 112. The liquid level meter 111 is placed on the side wall of the box 11 to measure the position or height of the liquid, and can provide continuous liquid level readings to understand the real-time status of the liquid. The liquid level switch 112 is placed on the top of the box 11 to control and monitor the position or height of the liquid. When the liquid level reaches or exceeds a preset position, an alarm signal will be issued.

[0029] Furthermore, the water pump 12 is also used to pump the externally provided coolant into the box body 11 through the liquid inlet A when the liquid level of the coolant in the box body 11 does not reach the allowed minimum liquid level.

[0030] When the liquid level meter 111 detects that the total liquid volume of the box 11 is less than 20% of the volume, it will automatically go to the external water tank to fill the liquid. After the liquid is filled to 90% of the required value, the flow rate is reduced to improve the accuracy of the liquid filling. The fifth solenoid valve 145, the second solenoid valve 142, the third solenoid valve 143 and the water pump 12 are opened. The fifth solenoid valve 145 is connected between the liquid inlet A and the water pump 12. The coolant is sucked from the liquid inlet A by the external water tank by the water pump 12, and then enters the box 11 after passing through the check valve 13 and the Y-type filter 15 to complete the liquid filling operation. This mode can also be used to recycle the system coolant. When the liquid cooling system is not in use, its drain port C can be connected to the liquid inlet A of the liquid replenishment cart. The water pump 12 filters the coolant in the system and recycles it to the water tank, saving resources and improving economic benefits. In order to avoid the water pump 12 from running dry for a long time and damaging the motor, it is necessary to ensure that the suction end of the water pump 12 is full of coolant before it can run in this mode.

[0031] The liquid level meter 111 and the liquid level switch 112 will automatically drain the liquid from the external water tank if they detect that the refilling cart has not been refilled for 24 hours. The sixth solenoid valve 146 is opened. The sixth solenoid valve 146 is connected between the drain port C and the box body 11. Through the drain port C, the coolant can be naturally and smoothly discharged in the box body 11 due to gravity. The concave structure designed at the bottom of the box body 11 further optimizes this process, ensuring that the coolant can be drained more thoroughly. This mode is suitable for when the refilling cart needs maintenance and cleaning. After long-term operation, some impurities, dirt or sediment may accumulate in the water tank.

[0032] Further, the monitoring module also includes an impurity sensing device disposed in the housing 11 for sensing impurities in the coolant in the housing 11. The impurity sensing device is preferably an inductance sensor 113 in this embodiment, which measures the current and potential difference in the solution and calculates the conductivity by applying Ohm's law. In general, if the impurities are ionic, that is, they can be dissociated into ions and exist in the solution, then the more impurities there are, the higher the ion concentration in the solution, and the greater the conductivity. This is because ions are the main carriers of conductivity, and the higher the ion concentration, the stronger the conductivity. In special cases, for example, if there are some non-ionic impurities in the solution, such as some organic solvents, they may not increase the ion concentration of the solution, but may reduce the conductivity of the solution. In addition, for solutions in which some organic matter exists, the added electrolyte solution will increase the conductivity at low concentrations.

[0033] Furthermore, the liquid replenishing tank 10 also includes a liquid inlet pipe connected to the liquid inlet A; the cart robot is also used to connect the liquid inlet pipe to the energy storage liquid cooling unit, so that the liquid replenishing tank 10 is connected to the energy storage liquid cooling unit through the liquid replenishing pipe and the liquid inlet pipe at the same time; the execution module is also used to control the water pump 12 to drive the coolant to circulate in the order of the water pump 12-the flow path regulating valve assembly-the Y-type filter 15-the box body 11-the liquid replenishing pipe-the energy storage liquid cooling unit-the liquid inlet pipe-the box body 11-the water pump 12 when the liquid replenishing tank 10 is connected to the energy storage liquid cooling unit through the liquid replenishing pipe and the liquid inlet pipe at the same time.

[0034] The first solenoid valve 141, the fourth solenoid valve 144, the seventh solenoid valve 147, the third solenoid valve 143 and the water pump 12 are opened, the seventh solenoid valve 147 is connected between the third solenoid valve 143 and the liquid inlet A, and the coolant in the box 11 passes through the water pump 12, the check valve 13, the Y-type filter 15, the liquid replenishing port B, the energy storage liquid cooling unit and the liquid inlet A in sequence and then returns to the box 11. This mode can filter the impurities in the coolant of the energy storage liquid cooling unit to prevent these impurities from wearing and clogging the accessories on the equipment pipeline, thereby effectively protecting the normal operation of the equipment.

[0035] Furthermore, the monitoring module also includes a flow meter 16 disposed in the liquid replenishing pipe for measuring the flow of the coolant provided to the energy storage liquid cooling unit, and a pressure sensor for measuring the hydraulic pressure of the coolant provided to the energy storage liquid cooling unit. The flow meter 16 is connected between the third solenoid valve 143 and the seventh solenoid valve 147. A first pressure sensor 171 and a second pressure sensor 172 are disposed before and after the flow meter 16. The readings of the two can calculate the flow resistance of the pipe section. The length of the pipeline before and after the flow meter 16 must meet the requirement that the length of the straight pipe section before the flow meter 16 should not be less than 10 times the pipe diameter, and the length of the straight pipe section after the flow meter 16 is recommended to be at least 5 times the pipe diameter to ensure the accuracy of the measurement and the stability of the fluid. A safety valve 18 is also provided on the liquid replenishing pipe. The safety valve 18 is connected between the second solenoid valve 142 and the fourth solenoid valve 144. The safety valve 18 is also connected to the box body 11 through a pipeline. When the pressure increases and exceeds the set value of the safety valve 18, the safety valve 18 will automatically open, and the water overflowing from the safety valve 18 will be directly recovered to the box body 11.

[0036] Open the fourth solenoid valve 144, the seventh solenoid valve 147, and the second solenoid valve 142. The coolant of the energy storage liquid cooling unit enters from the liquid inlet A, passes through the first pressure sensor 171, the flow meter 16, the safety valve 18, and the second pressure sensor 172, and then returns to the energy storage liquid cooling unit from the liquid replenishment port B. By adjusting the opening of the fourth solenoid valve 144 and the seventh solenoid valve 147, and keeping the second solenoid valve 142 unchanged, read the flow resistance and flow rate in the flow meter 16, and determine whether the flow rate of the energy storage liquid cooling unit can meet the demand under the rated external flow resistance. This mode is suitable for the situation where the energy storage liquid cooling unit is tested for hydraulic performance, to ensure that the equipment or structure of the energy storage liquid cooling unit can operate normally and meet the design requirements. Through testing, potential problems can be discovered in time, providing a reference for equipment maintenance, optimization and transformation.

[0037] Furthermore, the box body 11 is provided with a first exhaust valve 191 for exhausting the air in the box body 11, and the liquid inlet pipe is provided with a second exhaust valve 192 for exhausting the air in the pipe.

[0038] The automatic rehydration cart for energy storage liquid cooling units provided by the present invention realizes the automatic rehydration operation of the energy storage liquid cooling units through the cooperation of the robot and the rehydration cart. The cart is equipped with a touch screen and a voice interaction system for human-computer interaction, which can significantly improve the accuracy, efficiency and safety of the rehydration process. By integrating diversified functions and an intelligent human-computer interaction system, the accuracy, efficiency and safety of the rehydration process are significantly improved, providing strong support for the maintenance of the liquid cooling system.

Claims

1. An automated liquid replenishment cart for an energy storage liquid cooling unit, characterized in that: include: A vehicle body, wherein a fluid replenishing tank for storing coolant is provided in the vehicle body, and rollers are provided at the bottom of the vehicle body; A cart robot, used to push the cart body and connect or disconnect the liquid replenishing tank with the energy storage liquid cooling unit; A monitoring module, the monitoring module is installed on the liquid replenishment tank and is used to collect and monitor preset types of working condition information in the liquid replenishment tank; An interactive interface module, which is mounted on the vehicle body and is in communication connection with the monitoring module, and is used to display the operating condition information collected by the monitoring module and input control instructions; An execution module is installed on the vehicle body and is in communication connection with the interactive interface module, and is used for executing a preset type of processing on the coolant stored in the fluid replenishing tank according to the control instruction.

2. The automated fluid infusion cart according to claim 1, characterized in that: The liquid replenishment tank includes a tank body for storing coolant and a liquid replenishment pipe connected to the tank body for communicating with an energy storage liquid cooling unit. The execution module includes a water pump arranged in the liquid replenishment tank. The cart robot is used to connect the liquid replenishment pipe to the energy storage liquid cooling unit to connect the liquid replenishment tank with the energy storage liquid cooling unit. The water pump is used to pump the coolant stored in the tank body into the energy storage liquid cooling unit when the liquid replenishment pipe is connected to the energy storage liquid cooling unit.

3. The automated fluid infusion cart according to claim 2, characterized in that: The fluid replenishment tank is provided with a liquid inlet for obtaining coolant, a fluid replenishment port for providing coolant to the energy storage liquid cooling unit, and a liquid discharge port for directly discharging the coolant. The execution module also includes a flow path regulating valve assembly for selectively connecting the liquid inlet with the fluid replenishment port or the liquid discharge port.

4. The automated fluid infusion cart according to claim 3, characterized in that: The monitoring module includes a liquid level monitoring device for detecting the liquid level of the coolant in the tank.

5. The automated fluid infusion cart according to claim 4, characterized in that: The water pump is also used to pump externally provided coolant into the tank through the liquid inlet when the liquid level of the coolant in the tank does not reach the allowed minimum liquid level.

6. The automated fluid infusion cart according to claim 3, characterized in that: The monitoring module further includes an impurity sensing device disposed in the box body for sensing impurities in the coolant in the box body.

7. The automated fluid infusion cart according to claim 6, characterized in that: The execution module also includes a filter set in the liquid replenishing tank, the water pump is connected to the filter through the flow regulating valve assembly, and the execution module is also used to control the water pump to drive the coolant in the box to flow through the filter via the flow regulating valve assembly.

8. The automated fluid infusion cart according to claim 7, characterized in that: The liquid replenishing tank also includes a liquid inlet pipe connected to the liquid inlet; the cart robot is also used to connect the liquid inlet pipe to the energy storage liquid cooling unit, so that the liquid replenishing tank and the energy storage liquid cooling unit are connected through the liquid replenishing pipe and the liquid inlet pipe at the same time; the execution module is also used to control the water pump to drive the coolant to circulate in the order of the water pump-the flow path regulating valve assembly-the filter-the box body-the liquid replenishing pipe-energy storage liquid cooling unit-the liquid inlet pipe-the box body-the water pump when the liquid replenishing tank and the energy storage liquid cooling unit are connected through the liquid replenishing pipe and the liquid inlet pipe at the same time.

9. The automated fluid infusion cart according to claim 1, characterized in that: The monitoring module also includes a flow meter arranged in the liquid replenishing pipe for measuring the flow rate of the coolant provided to the energy storage liquid cooling unit, and a pressure sensor for measuring the hydraulic pressure of the coolant provided to the energy storage liquid cooling unit.

10. The automated fluid infusion cart according to claim 2, characterized in that: The box body is provided with an exhaust valve for exhausting the air in the box body.

Images