Water-based heat / cooling energy cross-sector recycling system, control method and storage medium

Abstract

Disclosed in the present application are a water-based heat / cooling energy cross-sector recycling system, a control method and a storage medium. The system comprises a data center liquid cooling heat exchange system, an integrated heat exchange system and a high-temperature heat pump system. The data center liquid cooling heat exchange system is used for receiving low-temperature return water of the integrated heat exchange system so as to perform heat exchange with a server cabinet, and transferring high-temperature return water generated from the heat exchange to the integrated heat exchange system. The integrated heat exchange system is used for receiving the high-temperature return water of the data center liquid cooling heat exchange system, transferring the high-temperature return water to the high-temperature heat pump system, receiving low-temperature return water of the high-temperature heat pump system, and transferring the low-temperature return water to the data center liquid cooling heat exchange system. The high-temperature heat pump system is used for receiving the high-temperature return water of the integrated heat exchange system so as to transfer heat to generate low-temperature return water, and transferring the low-temperature return water to the integrated heat exchange system.

Description

Water, heat / cold energy cross-industry recycling system, control method and storage medium

[0001] Related applications

[0002] This application claims priority to Chinese patent application No. 202510106566.0, filed on January 23, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of heat exchange equipment control technology, and in particular to a water-heat / cold energy cross-industry recycling system, control method and storage medium. Background Technology

[0004] Currently, due to the increasing heat output generated by the growing computing and storage demands of data centers, liquid cooling technology has gradually become the mainstream choice for data center construction due to its high heat exchange performance, high space utilization, and less environmental constraints. However, while providing efficient heat dissipation, most of the waste heat from data centers is directly discharged into the environment, failing to be effectively converted into other forms of energy, resulting in a huge waste of energy.

[0005] Therefore, the current thermal energy cycle system lacks an energy complementarity mechanism with urban infrastructure, and the waste heat of data centers cannot be recycled, resulting in low energy utilization efficiency.

[0006] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is prior art. Summary of the Invention

[0007] The main purpose of this application is to provide a water-heat / cold energy cross-industry recycling system, control method and storage medium, which aims to solve the technical problem of recycling excess heat generated by data centers.

[0008] To achieve the above objectives, this application proposes a water-heat / cold energy cross-industry recycling system, which includes a data center liquid cooling heat exchange system, a comprehensive heat exchange system, and a high-temperature heat pump system.

[0009] The data center liquid cooling heat exchange system is used to receive the low-temperature return water from the integrated heat exchange system for heat exchange of the server racks, and to transmit the high-temperature return water generated by the heat exchange to the integrated heat exchange system.

[0010] The integrated heat exchange system is used to receive the high-temperature return water from the liquid cooling heat exchange system of the data center, and transfer the high-temperature return water to the high-temperature heat pump system, and to receive the low-temperature return water from the high-temperature heat pump system, and transfer the low-temperature return water to the liquid cooling heat exchange system of the data center.

[0011] The high-temperature heat pump system is used to receive the high-temperature return water from the integrated heat exchange system, transfer heat to generate the low-temperature return water, and then transfer the low-temperature return water to the integrated heat exchange system.

[0012] In one embodiment, the water-heat / cold energy cross-business recycling system further includes an air conditioning system, which is used to handle the ambient heat of the data center and transfer the heat generated by the operation of the low-temperature heat pump to the integrated heat exchange system.

[0013] In one embodiment, the air conditioning system includes an in-row air conditioner, a chilled water tank, and a low-temperature heat pump unit;

[0014] The inter-row air conditioner is used to receive low-temperature cooling water from the cold water storage tank to handle the ambient heat of the data center, generate heated cooling water, and transfer the heated cooling water to the hot water storage tank.

[0015] The hot water storage tank is used to receive the heated cooling water generated by the inter-row air conditioner, thereby increasing the temperature of the cooling water in the hot water storage tank;

[0016] The low-temperature heat pump unit is used to reduce the temperature of the cooling water in the hot water storage tank and transfer the generated heat to the integrated heat exchange system.

[0017] In one embodiment, the data center liquid cooling heat exchange system includes a cold plate liquid-cooled data center, an internal circulation system, a cooling distribution unit, and an external circulation system;

[0018] The cold plate type liquid-cooled data center is used to receive the coolant from the internal circulation system to perform heat exchange on the server rack and transfer the heat generated by the heat exchange to the internal circulation system.

[0019] The internal circulation system is used to transfer the internal circulating coolant of the internal circulation system to the cold plate liquid-cooled data center, receive the heat generated by the heat exchange of the server rack through the internal circulating coolant, and transfer the heat of the internal circulating coolant to the cooling distribution unit.

[0020] The cooling distribution unit is used to manage the internal circulation system and the external circulation system, receive the heat from the internal circulation coolant, and transfer the heat from the internal circulation coolant to the external circulation coolant of the external circulation system.

[0021] The external circulation system is used to receive the low-temperature return water from the integrated heat exchange system, use the low-temperature return water as the external circulation coolant, receive the heat transferred by the cooling distribution unit through the external circulation coolant, and transfer it to the integrated heat exchange system as high-temperature return water.

[0022] In one embodiment, the data center liquid cooling heat exchange system further includes an internal circulation pipeline and an external circulation pipeline;

[0023] The internal circulation pipeline is used to connect the cooling distribution unit and the cold plate liquid-cooled data center to form a closed loop;

[0024] The external circulation pipeline is used to connect the cooling distribution unit and the integrated heat exchange system.

[0025] In one embodiment, the integrated heat exchange system includes a heat storage tank, a return water tank, a circulating water pump, and a liquid level control system;

[0026] The heat storage tank is used to receive and store the high-temperature return water from the data center liquid cooling heat exchange system and transfer the high-temperature return water to the high-temperature heat pump system; it also receives the low-temperature return water from the return water tank and transfers the low-temperature return water to the data center liquid cooling heat exchange system.

[0027] The liquid level control system is used to monitor the liquid levels of the thermal storage tank and the return water tank, and adjust the circulating water pump according to the changes in the liquid levels;

[0028] The return water tank is used to receive the low-temperature return water from the high-temperature heat pump system and transfer the low-temperature return water to the heat storage tank through the circulating water pump.

[0029] The circulating water pump is used to maintain the water circulation in the thermal storage tank and the return water tank.

[0030] In one embodiment, the high-temperature heat pump system includes a high-temperature water source heat pump unit, heat release equipment, and a hot water supply and recovery system;

[0031] The high-temperature water source heat pump unit is used to receive the high-temperature return water from the integrated heat exchange system as a heat source, raise the temperature of the low-temperature hot water in the high-temperature water source heat pump unit, and use it as high-temperature hot water. The high-temperature hot water is then transferred to the hot water supply and recovery system, and the high-temperature return water is deheated and used as low-temperature return water, which is then transferred to the integrated heat exchange system.

[0032] The hot water supply and recovery system is used to receive high-temperature hot water from the high-temperature water source heat pump unit, transfer the high-temperature hot water to the heat release device, and receive low-temperature hot water generated by the heat release device, and transfer the low-temperature hot water to the high-temperature water source heat pump unit.

[0033] The heat release device is used to receive high-temperature hot water from the hot water supply and recovery system, use the high-temperature hot water for heat release treatment, and transfer the low-temperature hot water generated after heat release to the hot water supply and recovery system.

[0034] Furthermore, to achieve the above objectives, this application also proposes a control method for a water-heat / cold energy cross-industry recycling system. The control method for the water-heat / cold energy cross-industry recycling system is applied to the aforementioned system and includes:

[0035] Monitor the temperature of server racks in the liquid cooling heat exchange system of the data center, as well as the parameters of the heat-releasing equipment in the high-temperature heat pump system. The changes in these parameters reflect the heat energy demand of the heat-releasing equipment.

[0036] If the temperature of the server rack exceeds a preset temperature threshold, increase the operating power of the high-temperature water source heat pump unit in the high-temperature heat pump system to recover excess heat; and / or

[0037] If the heat demand of the heat-generating equipment increases, the operating power of the high-temperature water source heat pump unit should be increased to increase the heat output.

[0038] In one embodiment, the control method for the water-heat / cold energy cross-industry recycling system further includes:

[0039] The liquid level of the thermal storage tank and the liquid level of the return water tank are monitored in real time through the liquid level sensor of the liquid level control system.

[0040] If the liquid level in the heat storage tank is higher than the preset maximum liquid level, and / or the liquid level in the return water tank is lower than the preset minimum liquid level, the control signal is sent to the circulating water pump to control the circulating water pump to transport the high-temperature return water in the heat storage tank to the return water tank.

[0041] If the liquid level in the heat storage tank is lower than the preset minimum liquid level, and / or the liquid level in the return water tank is higher than the preset maximum liquid level, the control signal is sent to the circulating water pump to control the circulating water pump to transport the low-temperature return water in the return water tank to the heat storage tank.

[0042] In addition, to achieve the above objectives, this application also proposes a storage medium, which is a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of the control method for the water-heat / cold energy cross-industry recycling system as described above.

[0043] This application provides a water-heat / cold energy cross-industry recycling system, control method, and storage medium. The water-heat / cold energy cross-industry recycling system includes a data center liquid-cooled heat exchange system, a comprehensive heat exchange system, and a high-temperature heat pump system. The data center liquid-cooled heat exchange system receives low-temperature return water from the comprehensive heat exchange system for heat exchange with server racks and transfers the high-temperature return water generated by the heat exchange to the comprehensive heat exchange system. The comprehensive heat exchange system receives high-temperature return water from the data center liquid-cooled heat exchange system and transfers it to the high-temperature heat pump system. It also receives low-temperature return water from the high-temperature heat pump system and transfers it to the data center liquid-cooled heat exchange system. The high-temperature heat pump system receives high-temperature return water from the comprehensive heat exchange system, transfers heat to generate low-temperature return water, and transfers the low-temperature return water to the comprehensive heat exchange system. This application utilizes a liquid-cooled heat exchange system to absorb heat generated by server racks in a data center, achieving effective recovery of waste heat. The high-temperature return water from the liquid-cooled heat exchange system is transferred to a comprehensive heat exchange system, and then to a high-temperature heat pump system. The high-temperature heat pump system extracts the heat energy from the high-temperature return water provided by the comprehensive heat exchange system through exothermic treatment, upgrading it to a higher temperature. The treated low-temperature return water is then returned to the comprehensive heat exchange system, and then transferred to the liquid-cooled heat exchange system again, achieving the recycling and balancing of heat energy. This application achieves the technical effect of recycling excess heat generated in data centers. Attached Figure Description

[0044] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0045] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0046] Figure 1 is a schematic diagram of the overall structure of the water-heat / cold energy cross-industry recycling system provided in Embodiment 1 of this application;

[0047] Figure 2 is a structural schematic diagram of the water-heat / cold energy cross-industry recycling system provided in Embodiment 1 of this application;

[0048] Figure 3 is a schematic diagram of the air conditioning system structure provided in Embodiment 2 of the water-heat / cooling energy cross-business recycling system of this application;

[0049] Figure 4 is a flowchart of the control method for the cross-industry recycling system of water heat / cold energy provided in Embodiment 3 of this application;

[0050] Figure 5 is a schematic diagram of the control method of the cross-industry recycling system for water heat / cold energy provided in Embodiment 4 of this application;

[0051] Figure 6 is a schematic diagram of the overall water / heat / cold energy cross-industry recycling system involved in the control method of the water / heat / cold energy cross-industry recycling system of this application.

[0052] Reference numerals: 10. Data center liquid cooling heat exchange system; 11. Cold plate liquid cooling data center; 12. Internal circulation system; 13. Cooling distribution unit; 14. External circulation system; 20. Integrated heat exchange system; 21. Thermal storage tank; 22. Return water tank; 23. Liquid level control system; 24. Circulating water pump; 30. High-temperature heat pump system; 31. High-temperature water source heat pump unit; 32. Hot water supply and recovery system; 33. Heat release equipment; 40. Air conditioning system; 41. In-row air conditioning; 42. Cold water storage tank; 43. Low-temperature heat pump unit.

[0053] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0054] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0055] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0056] The main solution in this application embodiment is:

[0057] Currently, water-heat / cold energy cross-industry recycling systems lack an energy complementarity mechanism with urban infrastructure, and the waste heat of data centers cannot be recycled, resulting in low energy utilization efficiency.

[0058] This application utilizes a liquid-cooled heat exchange system to absorb heat generated by server racks in a data center, achieving effective recovery of waste heat. The high-temperature return water from the liquid-cooled heat exchange system is transferred to a comprehensive heat exchange system, and then to a high-temperature heat pump system. The high-temperature heat pump system extracts the heat energy from the high-temperature return water provided by the comprehensive heat exchange system through exothermic treatment, upgrading it to a higher temperature. The treated low-temperature return water is then returned to the comprehensive heat exchange system, and then transferred to the liquid-cooled heat exchange system again, achieving the recycling and balancing of heat energy. This application achieves the technical effect of recycling excess heat generated in data centers.

[0059] It should be noted that the executing entity in this embodiment can be a water / heat / cold energy cross-industry recycling system, or a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or a control device for a water / heat / cold energy cross-industry recycling system capable of achieving the above functions. This embodiment does not specifically limit it in this way. The following uses a water / heat / cold energy cross-industry recycling system as the executing entity as an example to describe this embodiment and the following embodiments.

[0060] Example 1

[0061] Based on this, this application proposes a water-heat / cold energy cross-business recycling system according to the first embodiment. Please refer to Figures 1 and 2. The water-heat / cold energy cross-business recycling system includes a data center liquid cooling heat exchange system 10, a comprehensive heat exchange system 20, and a high-temperature heat pump system 30.

[0062] In this embodiment, the data center liquid cooling heat exchange system 10 is used to receive the low-temperature return water from the integrated heat exchange system 20 for heat exchange of the server rack, and to transmit the high-temperature return water generated by the heat exchange to the integrated heat exchange system 20.

[0063] Data centers generate a large amount of heat during operation. Coolant absorbs this heat, ensuring computer equipment operates within a suitable temperature range and improving its stability and reliability. Simultaneously, the heat from the coolant is transferred to the heat storage tank 21 of the integrated heat exchange system 20, providing a heat source for the high-temperature heat pump system 30, achieving energy recycling and improving energy efficiency.

[0064] It should be noted that the data center liquid cooling heat exchange system 10 is a system that uses a liquid cooling medium to absorb and remove the heat generated by the server rack. Through a heat exchange process, the data center liquid cooling heat exchange system 10 transfers the heat from the server rack to the cooling medium, maintaining the server rack at a suitable operating temperature.

[0065] In one embodiment, a sensor is used to monitor the temperature parameters of the server rack. The coolant is circulated through the cold plate by a cold plate liquid cooling system, and comes into direct contact with the heat-generating components of the server rack to absorb heat. The coolant is then drawn out from the cold plate and enters the heat storage tank 21 of the integrated heat exchange system 20.

[0066] In one embodiment, a sensor is used to monitor the temperature parameters of the server rack. The heat from the heat-generating components of the server rack, which are immersed in the coolant, is absorbed by the coolant through an immersion liquid cooling system and transferred to the heat storage tank 21 of the integrated heat exchange system 20.

[0067] In one embodiment, a sensor is used to monitor the temperature parameters of the server rack. A spray-type liquid cooling system is used to evenly spray coolant onto the heat-generating components of the server rack to absorb heat and transfer it to the heat storage tank 21 of the integrated heat exchange system 20.

[0068] In one embodiment, a liquid-cooled heat exchange unit is installed inside or near the server rack. Cooling medium is circulated to the heat exchange unit via pipes to exchange heat with the heat source inside the server rack. After heat exchange, the cooling medium becomes high-temperature return water, which is then transported back to the integrated heat exchange system 20 via pipes.

[0069] The data center liquid cooling heat exchange system 10 includes a cold plate liquid cooling data center 11, an internal circulation system 12, a cooling distribution unit 13, and an external circulation system 14.

[0070] In this embodiment, the cold plate type liquid-cooled data center 11 is used to receive the coolant from the internal circulation system 12 to perform heat exchange of the server rack and transfer the heat generated by the heat exchange to the internal circulation system 12.

[0071] It should be noted that the cold plate liquid-cooled data center 11 is a data center that uses cold plate liquid cooling technology. It absorbs and removes the heat generated by the server rack through the circulation of coolant in the cold plate.

[0072] In one embodiment, the cold plate is directly mounted on the server component to achieve efficient heat exchange.

[0073] In one embodiment, a cold-plate liquid cooling unit is installed inside the server rack, with each server component equipped with a corresponding cold plate. Coolant circulates within the cold plate through pipes, absorbing the heat generated by the server components, and then returns to the internal circulation system 12 through pipes.

[0074] In one embodiment, the server rack employing cold-plate liquid cooling technology has a single rack power of 30 kilowatts, with 250 racks in total, resulting in a total computer equipment power consumption of 7.5 megawatts. The cold plate directly contacts the high-heat components of the computer equipment within the server rack, carrying away the heat generated during equipment operation, achieving a heat exchange efficiency of up to 95%.

[0075] The internal circulation system 12 is used to transfer the internal circulation coolant of the internal circulation system 12 to the cold plate liquid-cooled data center 11, receive the heat generated by the heat exchange of the server rack through the internal circulation coolant, and transfer the heat of the internal circulation coolant to the cooling distribution unit.

[0076] It should be noted that the internal circulation system 12 is a closed thermal energy management system used to circulate coolant within the cold plate liquid-cooled data center 11, receiving and transferring the heat generated by heat exchange in the server racks. The internal circulation system 12 includes components such as coolant pumps, internal circulation pipelines, and storage tanks.

[0077] By directly absorbing the heat generated by the server rack with the internal circulating coolant and then transferring this heat to the external circulating coolant using a heat exchanger, the high-temperature internal circulating coolant is prevented from directly contacting the external environment or other parts of the equipment, thus protecting the equipment and improving heat dissipation efficiency. Simultaneously, the external circulating coolant, acting as a heat transfer medium, can carry heat away from the server rack area, preparing for further heat dissipation.

[0078] Internal circulation coolant is the coolant that circulates within the server rack, directly contacting the heat-generating components through cold plates to absorb heat from them. A cold plate is a highly efficient heat exchanger installed on the heat-generating components of the server rack, with internal coolant channels to transfer heat generated by the components to the flowing coolant. External circulation coolant does not directly contact the server rack but carries heat through heat exchange with the internal circulation coolant. A heat exchanger is a device used to transfer heat between two or more fluids without mixing them.

[0079] The data center liquid cooling heat exchange system 10 also includes an internal circulation pipeline and an external circulation pipeline.

[0080] In this embodiment, the internal circulation pipeline is used to connect the cooling distribution unit 13 and the cold plate liquid-cooled data center 11 to form a closed loop.

[0081] It should be noted that the internal circulation pipeline is installed in the internal circulation system 12 as a supplement to the internal circulation system. The external circulation pipeline is installed in the external circulation system 14 as a supplement to the external circulation system.

[0082] In one embodiment, a coolant pump is installed in the internal circulation system 12 to drive coolant through the internal circulation pipeline and circulate between the cold plate liquid-cooled data center 11 and the cooling distribution unit 13.

[0083] In one embodiment, the coolant temperature of the internal circulation system 12 is in the range of 41 to 51 degrees Celsius, and it circulates within the data center to remove heat from the computer equipment in the server racks.

[0084] In one embodiment, the cold plate is precisely installed according to the internal layout of the server rack and the location of the heat-generating components, and is connected to an internal circulating coolant pump via a piping system. Activating the internal circulating coolant pump creates a closed-loop circulation of coolant between the cold plate and the pump. As the coolant flows through the cold plate, it absorbs heat generated by the heat-generating components. Once the internal circulating coolant temperature rises, it exchanges heat with the external circulating coolant through a heat exchanger.

[0085] The external circulation system 14 is used to receive the low-temperature return water from the integrated heat exchange system 20, and uses the low-temperature return water as the external circulation coolant. The external circulation coolant receives the heat transferred by the cooling distribution unit 13 and is then transferred to the integrated heat exchange system 20 as high-temperature return water.

[0086] The external circulating coolant carries the heat and transfers it to the heat storage tank 21, thereby achieving the final discharge of heat. As a heat storage and discharge unit, the heat storage tank 21 can ensure that heat is safely and effectively removed, avoiding the accumulation of heat in the data center.

[0087] In this embodiment, the external circulation pipeline is used to connect the cooling distribution unit 13 and the integrated heat exchange system 20.

[0088] It should be noted that the external circulation system 14 is a thermal energy management system connected to the integrated heat exchange system 20. The external circulation system 14 receives heat transferred from the cooling distribution unit 13 and transfers the heat to the integrated heat exchange system 20 through the external circulation coolant.

[0089] In one embodiment, a pump and external circulation piping are installed in the external circulation system 14 to drive the external circulation coolant to circulate between the cooling distribution unit 13 and the integrated heat exchange system 20.

[0090] In one embodiment, valves and sensors are provided to monitor and control the temperature and flow rate of the external circulating coolant.

[0091] In one embodiment, the coolant temperature of the external circulation system 14 is in the range of 36 degrees Celsius to 46 degrees Celsius. After exchanging heat with the internal circulation system 12, the coolant transfers the heat to the integrated heat exchange system 20.

[0092] The cooling distribution unit 13 is used to manage the inner circulation system 12 and the outer circulation system 14, receive the heat of the inner circulation coolant, and transfer the heat of the inner circulation coolant to the outer circulation coolant of the outer circulation system 14.

[0093] It should be noted that the cooling distribution unit 13 is a heat energy distribution device used to manage the heat energy transfer between the internal circulation system 12 and the external circulation system 14. The cooling distribution unit 13 receives the heat from the internal circulation coolant and distributes it to the coolant in the external circulation system 14 to achieve the reuse and distribution of heat energy.

[0094] In one embodiment, the cooling distribution unit 13 is responsible for the separation and heat exchange between the inner circulation system 12 and the outer circulation system 14.

[0095] In one embodiment, the cooling distribution unit 13 includes a heat exchanger and a control system. The heat exchanger is used to realize the heat transfer between the internal circulating coolant and the external circulating coolant. The control system is used to monitor and control the heat exchange process to ensure the proper distribution and transfer of heat energy.

[0096] The heat exchanger of the cooling distribution unit 13 is activated to receive the heat from the internal circulation coolant and distribute it to the coolant in the external circulation system 14. The heat exchange process is monitored and controlled to ensure the reasonable distribution and transfer of heat energy.

[0097] In this embodiment, the integrated heat exchange system 20 is used to receive the high-temperature return water from the data center liquid cooling heat exchange system 10, and transmit the high-temperature return water to the high-temperature heat pump system 30, and to receive the low-temperature return water from the high-temperature heat pump system 30, and transmit the low-temperature return water to the data center liquid cooling heat exchange system 10.

[0098] It should be noted that the integrated heat exchange system 20 includes a heat storage tank 21, a return water tank 22, a circulating water pump 24, and a liquid level control system 23.

[0099] The heat storage tank 21 is used to receive and store the high-temperature return water from the data center liquid cooling heat exchange system 10 and transfer the high-temperature return water to the high-temperature heat pump system 30. It also receives the low-temperature return water from the return water tank 22 and transfers the low-temperature return water to the data center liquid cooling heat exchange system 10.

[0100] It should be noted that the heat storage tank 21 is a container used to store and transfer heat. The heat storage tank 21 is used to receive and store the high-temperature return water generated by the data center liquid cooling heat exchange system 10, which contains the heat energy generated by the data center equipment. At the same time, the heat storage tank 21 also receives low-temperature return water from the return water tank 22, preparing to transfer the low-temperature return water back to the data center liquid cooling heat exchange system 10 for cooling circulation.

[0101] In one embodiment, a temperature sensor and a liquid level sensor are installed inside the thermal storage tank to monitor changes in water quality and liquid level in real time.

[0102] In one embodiment, the heat storage tank 21 is designed as a container with sufficient capacity and good insulation performance to ensure that the stored heat is not lost too quickly.

[0103] In one embodiment, the thermal storage tank 21 stores high-temperature return water from the external circulation system 14, with a water temperature of approximately 40-50 degrees Celsius. The thermal storage tank 21 has a capacity of approximately 1800-2200 cubic meters and is used to regulate the supply and demand of heat energy to ensure the stability of the heat source for the high-temperature heat pump.

[0104] The return water tank 22 is used to receive the low-temperature return water from the high-temperature heat pump system 30 and transfer the low-temperature return water to the heat storage tank 21 through the circulating water pump 24.

[0105] In one embodiment, the return water tank 22 is designed as a container with sufficient capacity and good thermal insulation performance.

[0106] In one embodiment, a liquid level sensor is installed inside the return water tank 22 to monitor changes in liquid level in real time and is connected to the liquid level control system 23 to ensure the stability of the water level.

[0107] It should be noted that the return water tank 22 is used to receive the low-temperature return water after the high-temperature heat pump system 30 is processed, and this low-temperature return water is transferred to the heat storage tank 21 again through the circulating water pump 24, thereby forming a closed water cycle.

[0108] In one embodiment, the return water tank 22 stores low-temperature return water after heat extraction by the high-temperature heat pump, with a water temperature of approximately 36 degrees Celsius. It receives high-temperature water generated by the high-temperature heat pump system 30 to maintain the system's water balance.

[0109] In one embodiment, the return water tank 22 receives low-temperature water from the cold end of the high-temperature heat pump system 30, the greywater supply system, and the air conditioning heat pump of the air conditioning system.

[0110] The liquid level control system 23 is used to monitor the liquid levels of the thermal storage tank 21 and the return water tank 22, and adjust the circulating water pump 24 according to the changes in the liquid levels.

[0111] It should be noted that the liquid level control system 23 adjusts the operating state of the circulating water pump 24 according to the changes in the liquid level of the thermal storage tank 21 and the return water tank 22, so as to maintain the stability of the system liquid level. The liquid level control system 23 consists of a liquid level sensor and a controller.

[0112] The circulating water pump 24 is used to maintain the water circulation in the thermal storage tank 21 and the return water tank 22.

[0113] It should be noted that the circulating water pump 24 is the power source that drives the water to circulate between the thermal storage tank 21 and the return water tank 22. The circulating water pump 24 adjusts its speed or turns on / off according to the instructions of the liquid level control system 23 to maintain the water circulation and liquid level stability of the system.

[0114] In one embodiment, the circulating water pump 24 is a high-efficiency and energy-saving variable frequency water pump, which automatically adjusts the pump speed according to the signal of the liquid level control system 23.

[0115] In one embodiment, valves and filters are provided at the inlet and outlet of the circulating water pump 24 to control the water flow and protect the pump.

[0116] In one embodiment, the circulating water pump 24 is equipped with a high standby ratio of "1:1" to ensure reliable operation of the system. The circulating water pump 24 maintains water circulation between the thermal storage tank 21 and the return water tank 22, and the flow rate can reach 550-650 cubic meters per hour.

[0117] In one embodiment, a liquid level sensor is installed at a suitable location in the thermal storage tank 21 and the return water tank 22 to transmit the real-time monitored liquid level signal to the controller. The controller issues a command to the circulating water pump 24 according to the preset liquid level range and control strategy to adjust the working state of the water pump.

[0118] In one embodiment, the liquid level control system 23 is designed as an automated control system based on a programmable logic controller (PLC) or a distributed control system (DCS).

[0119] In one embodiment, the liquid level control system 23 monitors the liquid levels of the thermal storage tank 21 and the return water tank 22 in real time through sensors, and automatically adjusts the operation of the circulating water pump 24 according to the changes in liquid level to ensure that the liquid level is within a safe range.

[0120] In one embodiment, the integrated heat exchange system 20 further includes a greywater replenishment system. When the liquid level control system 23 detects that the liquid level in the return water tank 22 is lower than a preset minimum liquid level, if the liquid level in the heat storage tank 21 is also lower than a preset minimum liquid level, a control signal is sent to the greywater replenishment system to replenish greywater into the return water tank 22.

[0121] It should be noted that greywater is reclaimed water that has been treated to meet certain water quality standards but has not yet reached drinking water standards. It is used as a makeup water source for integrated heat exchange systems. Using greywater for makeup water can effectively utilize water resources, reduce dependence on traditional water resources, and lower production costs.

[0122] In one embodiment, recycled water is obtained as a source of replenishment water for the system. When the system experiences insufficient heat or water loss, water is promptly added to the return water tank 22 to maintain the normal operation of the system.

[0123] In one embodiment, when a water-heat / cold energy cross-business recycling system is applied to a wastewater treatment plant to perform heat circulation between a data center and the wastewater treatment plant, the reclaimed water from the wastewater treatment plant is used as the system's makeup water source.

[0124] In this embodiment, the high-temperature heat pump system 30 is used to receive the high-temperature return water from the integrated heat exchange system 20, transfer heat to generate the low-temperature return water, and then transfer the low-temperature return water to the integrated heat exchange system 20.

[0125] It should be noted that the high-temperature heat pump system 30 is a system that absorbs heat from a low-temperature heat source and upgrades it into high-temperature thermal energy.

[0126] The high-temperature heat pump system 30 includes a high-temperature water source heat pump unit 31, a heat release device 33, and a hot water supply and recovery system 32.

[0127] In this embodiment, the high-temperature water source heat pump unit 31 is used to receive the high-temperature return water from the integrated heat exchange system 20 as a heat source, raise the temperature of the low-temperature hot water in the high-temperature water source heat pump unit 31, and use it as high-temperature hot water. The high-temperature hot water is then transmitted to the hot water supply and recovery system 32, and the high-temperature return water is deheated and used as low-temperature return water, which is then transmitted to the integrated heat exchange system 20.

[0128] It should be noted that the high-temperature water source heat pump unit 31 is a device that utilizes low-temperature heat sources such as geothermal energy and industrial waste heat, and converts them into high-temperature heat energy through heat pump technology. The high-temperature water source heat pump unit 31 mainly consists of a compressor, evaporator, condenser, and throttling device, etc., and realizes the transfer and enhancement of heat energy through the phase change process of the circulating working fluid in the system.

[0129] In one embodiment, the compressor of the high-temperature water source heat pump unit 31 compresses the low-pressure, low-temperature refrigerant vapor into high-pressure hot steam and delivers it to the condenser. The high-pressure hot steam releases heat in the condenser, heating the water in the heat storage tank to the required high temperature. The high-temperature water heated by the high-temperature water source heat pump unit 31 is then sent to the heat release device 33 through a pipeline system. The low-temperature water generated by the heat release in the heat release device 33 is then transported back to the return water tank 22 through the pipeline system.

[0130] In one embodiment, the high-temperature water source heat pump unit 31 receives high-temperature return water from the integrated heat exchange system 20 as a heat source. The compressor in the unit compresses the circulating working fluid, increasing its temperature and pressure. The working fluid then releases heat in the condenser, heating the low-temperature hot water to high-temperature hot water. The high-temperature hot water is then transferred to the hot water supply and recovery system 32, while the low-temperature return water, after releasing heat, returns to the integrated heat exchange system 20 to continue absorbing heat.

[0131] In one embodiment, the 46°C high-temperature water in the heat storage tank 21 of the integrated heat exchange system 20 is used as a heat source, and the water temperature is raised to 70-90°C through heat pump technology. Each high-temperature water source heat pump unit 31 has a heating capacity of 0.6-0.8 MW, and 4-6 high-temperature water source heat pump units 31 are used to meet the heat demand of the subsequent heat release equipment 33.

[0132] In this embodiment, the hot water supply and recovery system 32 is used to receive the high-temperature hot water from the high-temperature water source heat pump unit 31, transfer the high-temperature hot water to the heat release device 33, and receive the low-temperature hot water generated by the heat release device 33, and transfer the low-temperature hot water to the high-temperature water source heat pump unit 31.

[0133] In one embodiment, the hot water supply and recovery system 32 is a system for receiving, distributing and recovering high-temperature hot water and low-temperature hot water between the high-temperature water source heat pump unit 31 and the heat release device 33, ensuring the effective transfer and recovery of heat energy within the system.

[0134] In one embodiment, the hot water supply and recovery system 32 first receives high-temperature hot water from the high-temperature water source heat pump unit 31, and then distributes it to the heat release device 33 for heating. Simultaneously, the system also receives low-temperature hot water generated by the heat release device 33, recovers it, and transfers it to the high-temperature water source heat pump unit 31 for reheating. This process forms a closed loop, achieving efficient utilization and recovery of thermal energy.

[0135] In one embodiment, the high-temperature hot water at 80 degrees Celsius generated by the high-temperature water source heat pump unit 31 is supplied to the heat release device 33. After releasing heat, the temperature drops to 65-75 degrees Celsius, and the generated low-temperature hot water at 65-75 degrees Celsius is returned to the high-temperature water source heat pump unit 31, forming a closed loop.

[0136] In this embodiment, the heat release device 33 is used to receive the high-temperature hot water from the hot water supply and recovery system 32, use the high-temperature hot water for heat release treatment, and transfer the low-temperature hot water generated after heat release to the hot water supply and recovery system 32.

[0137] It should be noted that the heat release device 33 refers to a device that uses high-temperature hot water for heating or heat release, such as a heating system, hot water bathing facilities, industrial heaters, etc. The heat release device 33 receives high-temperature hot water provided by the hot water supply and recovery system 32 and uses the heat energy in it for heating treatment.

[0138] In one embodiment, the heat release device 33 receives high-temperature hot water from the hot water supply and recovery system 32 and uses the heat energy in this hot water for heating, bathing, or industrial heating. After heat release, the low-temperature hot water returns to the hot water supply and recovery system 32, and is then transferred by the system to the high-temperature water source heat pump unit 31 for reheating.

[0139] In one embodiment, in a wastewater treatment plant, the heat release device 33 is a sludge drying device that uses high-temperature hot water to dry the sludge, reducing its moisture content to less than 40%. A high-temperature water source heat pump unit 31 is used to raise the temperature of the water source, and the heated water is then transported to the sludge drying device in the wastewater treatment plant to achieve efficient sludge drying. Utilizing the high-temperature water source heat pump unit 31 to provide heat energy significantly improves the efficiency of sludge drying, not only increasing energy utilization efficiency and reducing energy consumption and operating costs of the data center, but also providing a clean and low-cost heat energy source for the wastewater treatment plant.

[0140] This embodiment provides a water-heat / cold energy cross-industry recycling system. In this embodiment, the heat generated by the data center server rack is absorbed by the data center liquid cooling heat exchange system 10, realizing the effective recovery of waste heat from the data center. The high-temperature return water generated by the data center liquid cooling heat exchange system 10 is transferred to the integrated heat exchange system 20, and then transferred to the high-temperature heat pump system 30. The high-temperature heat pump system 30 extracts the heat energy from the high-temperature return water provided by the integrated heat exchange system 20 through heat release treatment, and upgrades it to a higher temperature heat energy. The treated low-temperature return water is returned to the integrated heat exchange system 20, and then transferred to the data center liquid cooling heat exchange system 10, realizing the recycling and balance of heat energy.

[0141] Based on Embodiment 1, Embodiment 2 of this application proposes a water-heat / cooling energy cross-business recycling system. Referring to FIG3, the water-heat / cooling energy cross-business recycling system further includes an air conditioning system 40.

[0142] In this embodiment, the air conditioning system 40 is used to handle the ambient heat of the data center and transfer the heat generated by the operation of the low-temperature heat pump to the integrated heat exchange system 20.

[0143] The air conditioning system 40 effectively handles the ambient heat generated by the data center and transfers this heat to the integrated heat exchange system 20 through the operation of the low-temperature heat pump unit 43, thereby achieving effective heat energy circulation and utilization. This not only reduces the energy consumption of the data center and improves energy efficiency, but also reduces its environmental impact.

[0144] It should be noted that the air conditioning system 40 is a system used to regulate the internal temperature of the data center. A series of devices are used to maintain the internal environmental conditions of the data center within a suitable range to ensure the normal operation of the data center equipment and extend its service life.

[0145] Ambient heat is a significant amount of heat generated during the operation of a data center. It represents heat that the liquid cooling heat exchange system in the data center has not fully absorbed. This heat originates from the operation of various electronic devices such as servers, storage devices, and network equipment. If ambient heat is not addressed promptly, it can lead to excessively high temperatures inside the data center, affecting the performance and stability of the equipment.

[0146] A low-temperature heat pump is a device that absorbs heat from a low-temperature heat source and elevates it to high-temperature heat energy through compression and condensation processes. The air conditioning system 40 controls the low-temperature heat pump to utilize the ambient heat generated by the data center as a low-temperature heat source, producing high-temperature heat energy through operation.

[0147] In this embodiment, the air conditioning system 40 includes an inter-row air conditioner 41, a chilled water tank 42, and a low-temperature heat pump unit 43.

[0148] The inter-row air conditioner 41 is used to receive low-temperature cooling water from the cold water storage tank 42 to handle the ambient heat of the data center, generate heated cooling water, and transfer the heated cooling water to the hot water storage tank.

[0149] It should be noted that the in-row air conditioner 41 is an air conditioning unit installed between server racks in a data center. It effectively handles the environmental heat generated in the data center by directly cooling the equipment inside the server racks. The in-row air conditioner 41 is characterized by its small size, high cooling efficiency, and low noise.

[0150] In one embodiment, the inter-row air conditioner 41 receives low-temperature cooling water from the chilled water tank 42 via a piping system and uses this cooling water to cool the equipment inside the data center server racks. As heat is exchanged, the temperature of the cooling water gradually rises, forming warmed cooling water. The inter-row air conditioner 41 returns the warmed cooling water to the hot water tank via the piping system.

[0151] In one embodiment, the inter-row air conditioner 41 is responsible for controlling the ambient temperature of the data center, handling 5% of the heat and ambient heat load that is not removed by the data center liquid cooling heat exchange system 10, and using the cooling water of the cold storage tank 42 for cooling to ensure that the computer room temperature is stable at around 15-25 degrees Celsius.

[0152] In one embodiment, temperature sensors are installed at key locations within the data center to monitor ambient temperature in real time.

[0153] In one embodiment, upper and lower temperature thresholds are set based on the heat dissipation performance of the data center equipment and preset temperature requirements.

[0154] In one embodiment, when the ambient temperature exceeds a preset upper threshold, a command is sent to the inter-row air conditioner 41 to increase its cooling power or turn on additional air conditioning equipment. When the ambient temperature is below a preset lower threshold, a command is sent to the inter-row air conditioner 41 to reduce its cooling power or turn off some air conditioning equipment.

[0155] In this embodiment, the hot water storage tank is used to receive the heated cooling water generated by the inter-row air conditioner 41, thereby increasing the temperature of the cooling water in the hot water storage tank.

[0156] It should be noted that the hot water storage tank is a container used to store cooling water, and it contains low-temperature cooling water. The hot water storage tank receives the heated cooling water generated by the inter-row air conditioner 41, and at the same time provides a stable water source for the low-temperature heat pump unit 43, realizing the recycling of cooling water.

[0157] In one embodiment, the hot water storage tank receives and stores heated cooling water from the inter-row air conditioner 41. As heated cooling water is continuously added, the temperature of the cooling water in the hot water storage tank gradually increases. When the temperature of the cooling water in the hot water storage tank reaches a certain level, the low-temperature heat pump unit 43 starts to operate.

[0158] In one embodiment, the cold water storage tank 42 stores low-temperature cooling water with a capacity of approximately 450-550 cubic meters. When the water temperature is low, it is directly supplied to the inter-row air conditioning unit 41; when the water temperature rises, it is cooled by the low-temperature heat pump unit 43.

[0159] In one embodiment, one or more temperature sensors are installed inside or near the cold water storage tank 42 to monitor the source temperature of the cooling water in real time.

[0160] In one embodiment, the temperature threshold of the cooling water source is set according to the heat dissipation requirements of the data center and the performance of the cooling system.

[0161] Monitoring the source temperature of the cooling water in the data center's chilled water tank 42 ensures that the cooling water can effectively absorb the environmental heat generated by the data center and maintain it within a suitable temperature range, thus guaranteeing the normal operation and efficient heat dissipation of the data center. Numerous computer devices within the data center generate a significant amount of heat during operation. If this heat cannot be dissipated in time, it can lead to overheating, affecting performance and stability, and even potentially causing equipment damage. Therefore, by monitoring the source temperature of the cooling water in the chilled water tank 42, the operating status of the cooling system can be adjusted in a timely manner, ensuring that the ambient temperature of the data center is controlled within a safe and stable range.

[0162] In this embodiment, the low-temperature heat pump unit 43 is used to reduce the temperature of the cooling water in the hot water storage tank and transfer the generated heat to the integrated heat exchange system 20.

[0163] It should be noted that the low-temperature heat pump unit 43 is a device capable of absorbing heat from a low-temperature heat source and converting it into high-temperature thermal energy through compression and condensation processes. In a data center, the low-temperature heat pump unit 43 utilizes the heated cooling water in a hot water storage tank as a low-temperature heat source, generates high-temperature thermal energy through operation, and transfers it to the integrated heat exchange system 20.

[0164] In one embodiment, the low-temperature heat pump unit 43 draws heated cooling water from the hot water storage tank, reduces its temperature through compression and condensation processes, and simultaneously recovers and generates high-temperature heat energy, which is transferred to the integrated heat exchange system 20 through a piping system. The cooled water processed by the low-temperature heat pump unit 43 is then returned to the hot water storage tank, awaiting the next cycle of use.

[0165] In one embodiment, when the water temperature in the hot water storage tank exceeds a set value, the low-temperature heat pump unit 43 is activated to lower the water temperature. The heat generated during the operation of the heat pump is recovered and enters the return water tank 22, improving the thermal energy utilization efficiency.

[0166] When the cooling water temperature in the hot water storage tank is detected to be higher than a preset temperature threshold, proactive measures are taken to reduce the cooling water temperature to ensure continuous and effective cooling services for the data center. When the cooling water temperature is too high, its heat absorption capacity decreases, thus affecting the data center's heat dissipation performance. The low-temperature heat pump unit 43 effectively transfers heat from the cooling water to the return water tank 22 of the integrated heat exchange system 20, thereby reducing the cooling water temperature and maintaining the stability and efficiency of the cooling system.

[0167] In one embodiment, a temperature sensor is installed in the hot water storage tank to monitor the cooling water temperature in real time.

[0168] In one embodiment, the heat generated by the operation of the low-temperature heat pump unit 43 is transferred to the return water tank 22 to improve energy utilization efficiency and realize heat recovery and reuse. The low-temperature heat pump unit 43 absorbs heat from the cooling water and raises the heat to a higher temperature level through the circulation and compression process of the working medium, which is then transferred to the return water tank to heat the water in the tank.

[0169] In one embodiment, if the cooling water temperature is higher than a preset threshold, the start signal of the low-temperature heat pump unit 43 is triggered. The low-temperature heat pump unit 43 works in a cycle to absorb heat from the hot water storage tank and transfer it to the return water pool 22, and the cooling water temperature in the hot water storage tank gradually decreases.

[0170] This embodiment provides a water-heat / cold energy cross-business recycling system. First, the in-row air conditioner 41 in the air conditioning system 40 efficiently handles the environmental heat generated by the equipment in the rack, maintaining the stability of the internal environment of the data center. The low-temperature heat pump unit 43 recovers heat from the cooling water heated in the hot water storage tank, converts it into high-temperature heat energy, and transfers it to the integrated heat exchange system 20, thereby improving the energy utilization efficiency of the data center.

[0171] Based on Embodiment 1, Embodiment 3 of this application proposes a control method for a water-heat / cold energy cross-industry recycling system. Referring to Figure 4, the control method for the water-heat / cold energy cross-industry recycling system includes:

[0172] Step S10: Monitor the temperature of the server rack in the liquid cooling heat exchange system of the data center, as well as the parameters of the heat-releasing equipment in the high-temperature heat pump system. The changes in the parameters reflect the heat energy demand of the heat-releasing equipment.

[0173] By acquiring real-time temperature information of server racks, potential overheating issues can be detected and addressed promptly, preventing server performance degradation or damage due to excessive heat. Simultaneously, monitoring parameter changes in heat-generating equipment reflects its thermal energy demand, allowing for adjustments to the operating status of the high-temperature heat pump system. This enables the rational distribution and utilization of thermal energy, improving the energy efficiency of the water-heat / cold energy cross-industry recycling system.

[0174] In one embodiment, a temperature sensor is installed inside the server rack to monitor the temperature inside the rack in real time.

[0175] In one embodiment, temperature sensors, flow meters, and other monitoring instruments are installed at the inlet and outlet of the heat-generating equipment to monitor the temperature, flow rate, and other parameters of the heat-generating equipment in real time.

[0176] In one embodiment, an increase in the outlet temperature parameter of the heat-releasing device is detected, indicating that the heat-releasing device is releasing excessive heat, reflecting a decrease in heat energy demand; a decrease in the outlet temperature parameter of the heat-releasing device is detected, indicating that the heat-releasing device needs to release more heat to reach the set temperature, reflecting an increase in heat energy demand.

[0177] In one embodiment, an increase in the inlet and outlet flow rate of the heat-releasing device indicates that more fluid needs to be heated or cooled, reflecting an increase in thermal energy demand; a decrease in the inlet and outlet flow rate of the heat-releasing device indicates a decrease in thermal energy demand.

[0178] In one embodiment, a temperature sensor is used to monitor the temperature inside the server rack in real time and transmit the data to the control system. The sensor also monitors the parameters of the heat-releasing equipment in the high-temperature heat pump system and transmits the data to the control system.

[0179] Step S20: If the temperature of the server rack exceeds a preset temperature threshold, increase the operating power of the high-temperature water source heat pump unit in the high-temperature heat pump system to recover excess heat.

[0180] When the temperature of the server rack exceeds the preset temperature threshold, the operating power of the high-temperature water source heat pump unit in the high-temperature heat pump system is increased to recover the excess heat generated in the server rack in a timely and effective manner and convert it into usable thermal energy resources, thereby realizing the recycling of energy.

[0181] In this embodiment, the server rack is an equipment rack within a data center used to install servers. The preset temperature threshold is the maximum allowable temperature value set to ensure the normal operation of the server. When the temperature exceeds the preset temperature threshold, measures need to be taken to cool it down.

[0182] In one embodiment, when the temperature exceeds a preset temperature threshold, the operating power of the high-temperature water source heat pump unit is automatically adjusted. By increasing the operating power of the unit, the ability to absorb heat from the server rack is improved, thereby accelerating the cooling speed.

[0183] In one embodiment, the high-temperature water source heat pump unit transfers the absorbed heat to a high-temperature heat source, including a hot water storage tank or a steam generator; the hot water or steam can be used for other systems in the data center, including heating, humidification, cleaning, etc., to achieve the recycling of thermal energy.

[0184] Step S30: If the heat energy demand of the heat-releasing equipment increases, increase the operating power of the high-temperature water source heat pump unit to increase heat energy output.

[0185] By increasing the operating power of the unit, the heat output of the high-temperature water source heat pump system can be increased, thereby meeting the high heat demand of the heat-generating equipment, maintaining the temperature stability of data centers or other areas with high heat demand, and improving the overall system's energy efficiency and reliability.

[0186] In this embodiment, thermal energy demand is the thermal energy required by the heat-generating device to maintain or reach a specific temperature or operating state. Thermal energy demand varies due to factors such as environmental conditions, equipment load, and operating time.

[0187] In one embodiment, when an increase in the heat energy demand of the heat-generating equipment is detected, the operating power of the high-temperature water source heat pump unit is automatically adjusted by the control system.

[0188] In one embodiment, variable frequency speed control technology is used to smoothly adjust the unit's speed and power output according to changes in heat energy demand.

[0189] This embodiment provides a control method for a water-heat / cold energy cross-industry recycling system. Firstly, by monitoring the temperature of the server rack and increasing the operating power of the high-temperature heat pump system when it exceeds a preset temperature threshold, this effectively prevents server performance degradation or damage due to overheating. When the server rack generates excess heat, the operating power of the high-temperature water source heat pump unit is increased to recover the excess heat, thereby improving the energy efficiency of the data center. By monitoring changes in the parameters of the heat-generating equipment to reflect its heat demand and adjusting the operating power of the high-temperature water source heat pump unit accordingly, it can be ensured that the system can always meet the heat demand and maintain a stable operating state.

[0190] Based on Embodiment 1, Embodiment 4 of this application proposes a control method for a water-heat / cold energy cross-industry recycling system. Referring to Figure 5, the control method for the water-heat / cold energy cross-industry recycling system further includes:

[0191] Step S40: The liquid level of the thermal storage tank and the liquid level of the return water tank are monitored in real time by the liquid level sensor of the liquid level control system.

[0192] By monitoring the liquid levels in the thermal storage tank and the return water tank, it is possible to prevent the tanks from overflowing or drying out, thus ensuring the safe operation of the system.

[0193] In one embodiment, level sensors are installed in the thermal storage tank and the return water tank to collect level data in real time and transmit the data to the control unit.

[0194] In one embodiment, a control signal is sent to the circulating water pump based on the liquid level and preset control logic to adjust the operating state of the circulating water pump. The control logic guides the control of the circulating water pump, determining whether adjustment of the pump's operating state is necessary based on data from the liquid level sensor. The control signal is used to adjust the operating state of the circulating water pump; it is generated and sent to the pump based on the liquid level sensor data and the control logic to adjust the pump's operating state.

[0195] Step S50: If the liquid level of the heat storage tank is higher than the preset maximum liquid level, and / or the liquid level of the return water tank is lower than the preset minimum liquid level, the control signal is sent to the circulating water pump to control the circulating water pump to transport the high-temperature return water in the heat storage tank to the return water tank.

[0196] To prevent the water level in the storage tank from becoming too high, which could lead to overflow or affect the normal operation of the system, and to prevent the water level in the return water tank from becoming too low, which could lead to pump idling, water shortage in the system, or affect subsequent water treatment processes, the system controls the circulating water pumps to transfer excess water from the storage tank to the return water tank when the water level in the storage tank is higher than the preset maximum level and / or the water level in the return water tank is lower than the preset minimum level. This effectively regulates the water levels in the storage tank and the return water tank, ensuring the safe and stable operation of the system.

[0197] In this embodiment, the preset maximum liquid level is a pre-set upper limit value to prevent the thermal storage tank from overflowing. The preset minimum liquid level is a pre-set upper limit value to ensure the normal operation of the return water tank.

[0198] In one embodiment, a liquid level sensor is used to monitor the liquid level of the return water tank in real time. The monitored liquid level is compared with a preset minimum liquid level. If the liquid level is lower than the preset minimum liquid level, a circulating water pump is started to draw water from the heat storage tank to replenish the return water tank.

[0199] In one embodiment, a liquid level sensor is used to monitor the liquid level of the thermal storage tank in real time. The monitored liquid level is compared with a preset maximum liquid level. If the liquid level is higher than the preset maximum liquid level, a circulating water pump is started to transport the excess water in the thermal storage tank to the return water tank.

[0200] In one embodiment, the liquid level is continuously monitored and adjusted until the liquid level in the return water tank rises to a preset range.

[0201] Step S60: If the liquid level of the heat storage tank is lower than the preset minimum liquid level, and / or the liquid level of the return water tank is higher than the preset maximum liquid level, the control signal is sent to the circulating water pump to control the circulating water pump to transport the low-temperature return water in the return water tank to the heat storage tank.

[0202] To prevent the water level in the return water tank from becoming too high, which could lead to overflow or affect the normal operation of the system, and to prevent the water level in the storage tank from becoming too low, which could lead to pump idling, water shortage in the system, or affect subsequent water treatment processes, the system controls the circulating water pumps to transfer excess water from the return water tank to the storage tank when the water level in the return water tank is higher than the preset maximum level and / or the water level in the storage tank is lower than the preset minimum level. This effectively regulates the water levels in both the storage tank and the return water tank, ensuring the safe and stable operation of the system.

[0203] In this embodiment, the preset maximum liquid level is a pre-set upper limit value to prevent the return water tank from overflowing. The preset minimum liquid level is a pre-set upper limit value to ensure the normal operation of the thermal storage tank.

[0204] In one embodiment, a liquid level sensor is used to monitor the liquid level of the return water tank in real time, and the monitored liquid level is compared with a preset maximum liquid level. If the liquid level is higher than the preset maximum liquid level, the circulating water pump is started to transport the excess water in the return water tank to the heat storage tank.

[0205] In one embodiment, a liquid level sensor is used to monitor the liquid level of the thermal storage tank in real time. The monitored liquid level is compared with a preset minimum liquid level. If the liquid level is lower than the preset minimum liquid level, a circulating water pump is started to draw water from the return water tank to replenish the thermal storage tank.

[0206] In one embodiment, the liquid level is continuously monitored and adjusted until the liquid level in the return water tank drops to a preset range.

[0207] This embodiment provides a control method for a water-heat / cold energy cross-industry recycling system. This embodiment first monitors the liquid levels of the thermal storage tank and the return water tank in real time through a liquid level sensor, automatically senses changes in the water level, and determines whether the working state of the circulating water pump needs to be adjusted according to the preset control logic, so as to realize automated water level control, keep the liquid level of the return water tank within the preset range, maintain the stable operation of the system, and improve the operating efficiency of the system.

[0208] For example, to help understand the implementation flow of the control method for the water / heat / cold energy cross-industry recycling system obtained by combining this embodiment with the above embodiment one, please refer to Figure 6. Figure 6 provides an overall schematic diagram of a water / heat / cold energy cross-industry recycling system, specifically:

[0209] In this embodiment, the water-heat / cold energy cross-business recycling system is used for the recycling of heat energy between the data center and the sewage treatment plant.

[0210] The system monitors the operating status of computer equipment in the data center. The heat generated by the equipment is carried away by the cold plate liquid cooling system. The coolant circulates through the cold plate to contact the heat-generating components of the computer equipment and absorb heat.

[0211] In one embodiment, the coolant includes an internal circulating coolant and an external circulating coolant. The internal circulating coolant absorbs heat generated by the computer equipment, raising its temperature to 51 degrees Celsius, and then passes through a cooling distribution unit, where it exchanges heat with the external circulating coolant via a heat exchanger. The external circulating coolant receives heat transferred from the internal circulating coolant, raising its temperature to 46 degrees Celsius, and then transfers the heat to the water source in the heat storage tank.

[0212] In one embodiment, the inter-row air conditioner obtains cooling water from the cold water storage tank to handle ambient heat and heat not carried away by the liquid cooling system. When the water temperature in the cold water storage tank rises, the low-temperature heat pump starts to lower the water temperature to a set range.

[0213] The heat generated during the operation of the low-temperature heat pump is recovered into the return water tank, further improving the efficiency of heat energy utilization.

[0214] The heat storage tank stores heat from the external circulating coolant. The 46-degree high-temperature water in the heat storage tank is used as the heat source for the high-temperature water source heat pump unit. The high-temperature water source heat pump unit in the heat storage tank raises the temperature of the water in the heat storage tank to 80 degrees.

[0215] The heated water source at 80 degrees Celsius is transported to the sludge drying equipment in the sewage treatment plant. The sludge drying equipment uses the heat from the heated water source to dry the sludge. After absorbing the heat, the sludge drying equipment produces a low-temperature water source at 36 degrees Celsius. The low-temperature water source is then returned to the return water tank through a pipeline system.

[0216] Based on the liquid level in the return water tank, a control signal is sent to the circulating water pump, which then circulates the low-temperature water source in the return water tank with the high-temperature water source in the heat storage tank.

[0217] In one embodiment, the return water tank receives water from the cold end of the high-temperature heat pump, the air conditioning heat pump, and the greywater supply to maintain stable water volume and temperature.

[0218] The entire process is from heat generation in the data center to heat recovery, including the role of in-row air conditioning, water temperature regulation of the cold storage tank, heat recovery by the low-temperature heat pump, and heat supply for sludge drying. This achieves efficient utilization and circulation of heat while maintaining the heat energy requirements of the data center and the sludge drying process.

[0219] It should be noted that the above examples are only for understanding this application and do not constitute a limitation on the control method of the water, heat / cold energy cross-industry recycling system of this application. Any simple modifications based on this technical concept are within the protection scope of this application.

[0220] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the control method of the water-heat / cold energy cross-business recycling system in the above embodiments.

[0221] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or flash memory, optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0222] The aforementioned computer-readable storage medium may be included in the control equipment of the water-heat / cold energy cross-business recycling system; or it may exist independently and not be assembled into the control equipment of the water-heat / cold energy cross-business recycling system.

[0223] The aforementioned computer-readable storage medium carries one or more programs that, when executed by the control equipment of the water / heat / cold energy cross-industry recycling system, enable the control equipment to write computer program code for performing the operations of this application in one or more programming languages ​​or a combination thereof. These programming languages ​​include object-oriented programming languages—such as Java, Smalltalk, and C++—and conventional procedural programming languages—such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0224] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0225] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0226] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the control method of the above-described water / heat / cold energy cross-industry recycling system, which can solve the technical problem of recycling excess heat generated by data centers. Compared with related technologies, the beneficial effects of the computer-readable storage medium provided in this application are the same as the beneficial effects of the control method of the water / heat / cold energy cross-industry recycling system provided in the above embodiments, and will not be repeated here.

[0227] The above description is only a part of the embodiments of this application and does not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. A water-heat / cold energy cross-industry recycling system, wherein, The water-heat / cold energy cross-industry recycling system includes a data center liquid cooling heat exchange system, a comprehensive heat exchange system, and a high-temperature heat pump system. The data center liquid cooling heat exchange system is used to receive the low-temperature return water from the integrated heat exchange system for heat exchange of the server racks, and to transmit the high-temperature return water generated by the heat exchange to the integrated heat exchange system. The integrated heat exchange system is used to receive the high-temperature return water from the liquid cooling heat exchange system of the data center, and transfer the high-temperature return water to the high-temperature heat pump system, and to receive the low-temperature return water from the high-temperature heat pump system, and transfer the low-temperature return water to the liquid cooling heat exchange system of the data center. The high-temperature heat pump system is used to receive the high-temperature return water from the integrated heat exchange system, transfer heat to generate the low-temperature return water, and then transfer the low-temperature return water to the integrated heat exchange system.

2. The water-heat / cold energy cross-industry recycling system as described in claim 1, wherein, The water-heat / cold energy cross-business recycling system also includes an air conditioning system, which is used to handle the ambient heat of the data center and transfer the heat generated by the low-temperature heat pump to the integrated heat exchange system.

3. The water-heat / cold energy cross-industry recycling system as described in claim 2, wherein, The air conditioning system includes in-row air conditioning, a cold water storage tank, and a low-temperature heat pump unit; The inter-row air conditioner is used to receive low-temperature cooling water from the cold water storage tank to handle the ambient heat of the data center, generate heated cooling water, and transfer the heated cooling water to the hot water storage tank. The hot water storage tank is used to receive the heated cooling water generated by the inter-row air conditioner, thereby increasing the temperature of the cooling water in the hot water storage tank; The low-temperature heat pump unit is used to reduce the temperature of the cooling water in the hot water storage tank and transfer the generated heat to the integrated heat exchange system.

4. The water-heat / cold energy cross-industry recycling system as described in claim 1, wherein, The data center liquid cooling heat exchange system includes a cold plate liquid cooling data center, an internal circulation system, a cooling distribution unit, and an external circulation system; The cold plate type liquid-cooled data center is used to receive the coolant from the internal circulation system to perform heat exchange on the server rack and transfer the heat generated by the heat exchange to the internal circulation system. The internal circulation system is used to transfer the internal circulating coolant of the internal circulation system to the cold plate liquid-cooled data center, receive the heat generated by the heat exchange of the server rack through the internal circulating coolant, and transfer the heat of the internal circulating coolant to the cooling distribution unit. The cooling distribution unit is used to manage the internal circulation system and the external circulation system, receive the heat from the internal circulation coolant, and transfer the heat from the internal circulation coolant to the external circulation coolant of the external circulation system. The external circulation system is used to receive the low-temperature return water from the integrated heat exchange system, use the low-temperature return water as the external circulation coolant, receive the heat transferred by the cooling distribution unit through the external circulation coolant, and transfer it to the integrated heat exchange system as high-temperature return water.

5. The water-heat / cold energy cross-industry recycling system as described in claim 4, wherein, The data center liquid cooling heat exchange system also includes an internal circulation pipeline and an external circulation pipeline; The internal circulation pipeline is used to connect the cooling distribution unit and the cold plate liquid-cooled data center to form a closed loop; The external circulation pipeline is used to connect the cooling distribution unit and the integrated heat exchange system.

6. The water-heat / cold energy cross-industry recycling system as described in claim 1, wherein, The integrated heat exchange system includes a heat storage tank, a return water tank, a circulating water pump, and a liquid level control system. The heat storage tank is used to receive and store the high-temperature return water from the data center liquid cooling heat exchange system and transfer the high-temperature return water to the high-temperature heat pump system; it also receives the low-temperature return water from the return water tank and transfers the low-temperature return water to the data center liquid cooling heat exchange system. The liquid level control system is used to monitor the liquid levels of the thermal storage tank and the return water tank, and adjust the circulating water pump according to the changes in the liquid levels; The return water tank is used to receive the low-temperature return water from the high-temperature heat pump system and transfer the low-temperature return water to the heat storage tank through the circulating water pump. The circulating water pump is used to maintain the water circulation in the thermal storage tank and the return water tank.

7. The water-heat / cold energy cross-industry recycling system as described in claim 1, wherein, The high-temperature heat pump system includes a high-temperature water source heat pump unit, heat release equipment, and a hot water supply and recovery system. The high-temperature water source heat pump unit is used to receive the high-temperature return water from the integrated heat exchange system as a heat source, raise the temperature of the low-temperature hot water in the high-temperature water source heat pump unit, and use it as high-temperature hot water. The high-temperature hot water is then transferred to the hot water supply and recovery system, and the high-temperature return water is deheated and used as low-temperature return water, which is then transferred to the integrated heat exchange system. The hot water supply and recovery system is used to receive high-temperature hot water from the high-temperature water source heat pump unit, transfer the high-temperature hot water to the heat release device, and receive low-temperature hot water generated by the heat release device, and transfer the low-temperature hot water to the high-temperature water source heat pump unit. The heat release device is used to receive high-temperature hot water from the hot water supply and recovery system, use the high-temperature hot water for heat release treatment, and transfer the low-temperature hot water generated after heat release to the hot water supply and recovery system.

8. A control method for a water-heat / cold energy cross-industry recycling system, wherein, The control method for the water / heat / cold energy cross-industry recycling system is applied to the water / heat / cold energy cross-industry recycling system as described in any one of claims 1 to 7, wherein the control method for the water / heat / cold energy cross-industry recycling system includes: Monitor the temperature of server racks in the liquid cooling heat exchange system of the data center, as well as the parameters of heat-releasing equipment in the high-temperature heat pump system. Changes in these parameters reflect the heat energy demand of the heat-releasing equipment. If the temperature of the server rack exceeds a preset temperature threshold, increase the operating power of the high-temperature water source heat pump unit in the high-temperature heat pump system to recover excess heat; and / or If the heat demand of the heat-generating equipment increases, the operating power of the high-temperature water source heat pump unit should be increased to increase the heat output.

9. A control method for a water-heat / cold energy cross-industry recycling system, wherein, The control method for the water / heat / cold energy cross-industry recycling system is applied to the water / heat / cold energy cross-industry recycling system as described in any one of claims 1 to 7, and the control method for the water / heat / cold energy cross-industry recycling system further includes: The liquid level of the thermal storage tank and the liquid level of the return water tank are monitored in real time through the liquid level sensor of the liquid level control system. If the liquid level in the heat storage tank is higher than the preset maximum liquid level, and / or the liquid level in the return water tank is lower than the preset minimum liquid level, the control signal is sent to the circulating water pump to control the circulating water pump to transport the high-temperature return water in the heat storage tank to the return water tank. If the liquid level in the heat storage tank is lower than the preset minimum liquid level, and / or the liquid level in the return water tank is higher than the preset maximum liquid level, the control signal is sent to the circulating water pump to control the circulating water pump to transport the low-temperature return water in the return water tank to the heat storage tank.

10. A storage medium, wherein, The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, it implements the steps of the control method for the water-heat / cold energy cross-industry recycling system as described in any one of claims 8 to 9.

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