Data center waste heat recovery system and method, electronic equipment and storage medium

Abstract

The embodiment of the invention provides a data center waste heat recovery system and method, electronic equipment and a storage medium. The system comprises a main waste heat recovery device, a waste heat recovery pipeline and a control device, the main waste heat recovery device is electrically connected with the control device, the input end of the main waste heat recovery device communicates with the waste heat recovery pipeline, and the output end of the main waste heat recovery device comprises a heating hot water output module interface, a heating refrigerant output module interface and a domestic hot water output module interface which are in butt joint with a comfort air conditioner terminal, a multi-split air conditioner terminal and a domestic water supply and return pipe; and the waste heat recovery pipeline is connected into a chilled water and / or cooling water supply and return pipeline of the data center. The control device obtains system load data, calculates the total waste heat recovery amount to be recovered and the total output heat, and controls the main device to output heat through at least one interface according to a preset priority rule. According to the system, multi-scene adaptive energy supply is achieved, and the waste heat utilization efficiency and the operation stability are improved.

Description

Technical Field

[0001] This application relates to the field of automatic control, and more particularly to a data center waste heat recovery system, method, electronic device, and storage medium. Background Technology

[0002] As a core computing infrastructure, data centers need to operate continuously throughout the year, generating a large amount of continuous and stable waste heat during operation. Waste heat recovery and utilization has become a key direction for improving energy efficiency and reducing carbon emissions.

[0003] Existing data center waste heat recovery is mainly divided into two paths: wind-side and water-side. The wind-side recovers heat from hot air, while the water-side extracts waste heat from the air conditioning water system. Water-side recovery is more widely used, mainly through centralized or multi-split heat pump systems, to output hot water or refrigerant to meet part of the energy supply demand.

[0004] Existing recycling systems have limitations due to their single function, making it difficult to adapt to different energy supply scenarios in different areas at the same time, and failing to achieve efficient integration and utilization of waste heat while ensuring energy needs in multiple scenarios. Summary of the Invention

[0005] This application provides a data center waste heat recovery system, method, electronic device, and storage medium to achieve multi-scenario adaptable power supply and improve waste heat utilization efficiency and operational stability.

[0006] In a first aspect, embodiments of this application provide a data center waste heat recovery system, comprising:

[0007] Waste heat recovery main unit, waste heat recovery pipeline and control device;

[0008] The main waste heat recovery device is electrically connected to the control device. The input end of the main waste heat recovery device is connected to the output end of the waste heat recovery pipeline. The output end of the main waste heat recovery device includes one or more of a heating hot water output module interface, a heating refrigerant output module interface, and a domestic hot water output module interface. The heating hot water output module interface is connected to the comfort air conditioning terminal, the heating refrigerant output module interface is connected to the multi-split air conditioning terminal, and the domestic hot water output module interface is connected to the domestic water supply and return pipe.

[0009] The input end of the waste heat recovery pipeline is connected to the chilled water supply and return pipeline and / or cooling water supply and return pipeline of the data center;

[0010] The control device is used to: acquire system load data from the data center side; determine the total amount of waste heat to be recovered based on the system load data; determine the total output heat of the waste heat recovery system based on a preset recovery coefficient and the total amount of waste heat to be recovered; and control the main waste heat recovery device to output the total heat of the waste heat recovery system through at least one of the heating hot water output module interface, the heating refrigerant output module interface, and the domestic hot water output module interface, based on a preset waste heat recovery supply priority rule and the total output heat of the waste heat recovery system.

[0011] In one possible implementation, the waste heat recovery main device includes a first electric valve, a second electric valve, a third electric valve, a fourth electric valve, a fifth electric valve, a sixth electric valve, a seventh electric valve, an eighth electric valve, a first expansion valve, a second expansion valve, a third expansion valve, a first water-fluoride heat exchanger, a second water-fluoride heat exchanger, a third water-fluoride heat exchanger, a fluoride heat exchanger, a first pipeline valve module, a valve pump module, a second pipeline valve module, a compressor, and a four-way valve.

[0012] The first electric valve and the first expansion valve are connected in parallel and then connected in series with the first water-fluoride heat exchanger, the first pipeline valve module, and the fourth electric valve to form the first branch.

[0013] The second electric valve and the second expansion valve are connected in parallel to form a second branch with the fluoro-fluorine heat exchanger, the valve pump module, and the fifth electric valve;

[0014] The second water-fluoride heat exchanger and the seventh electric valve form the third branch;

[0015] The third electric valve and the third expansion valve are connected in parallel to form a fourth branch with the third water-fluoride heat exchanger and the second pipeline valve module;

[0016] The first branch, the second branch, the third branch, and the fourth branch are all interconnected on the same side. The first branch and the second branch are connected to the first port of the four-way valve on the other side. The port on the other side of the fourth branch is connected in series with the eighth electric valve and in parallel with the third branch, and then connected to the first port of the four-way valve through the sixth electric valve. The port on the other side of the fourth branch is also connected to the second port of the four-way valve. The two ends of the compressor are connected to the third port and the fourth port of the four-way valve, respectively.

[0017] The first electric valve, the second electric valve, the third electric valve, the fourth electric valve, the fifth electric valve, the sixth electric valve, the seventh electric valve, the eighth electric valve, the first water-fluoride heat exchanger, the second water-fluoride heat exchanger, the third water-fluoride heat exchanger, the fluoride heat exchanger, the first pipeline valve module, the valve pump module, the second pipeline valve module, the compressor, and the four-way valve are all electrically connected to the control device.

[0018] In one possible implementation, the first pipeline valve module includes: a ninth electric valve for water pipes, a tenth electric valve for water pipes, an eleventh electric valve for water pipes, and a twelfth electric valve for water pipes.

[0019] The ninth electric valve of the water pipe is installed on the inlet pipe of the first water-fluoride heat exchanger, the tenth electric valve of the water pipe is installed on the return pipe of the first water-fluoride heat exchanger, one end of the eleventh electric valve of the water pipe is connected to the liquid inlet end of the tenth electric valve of the water pipe, the other end of the eleventh electric valve of the water pipe is connected to the liquid inlet end of the ninth electric valve of the water pipe, one end of the twelfth electric valve of the water pipe is connected to the liquid outlet end of the ninth electric valve of the water pipe, and the other end of the twelfth electric valve of the water pipe is connected to the liquid discharge end of the tenth electric valve of the water pipe.

[0020] The second pipeline valve module has the same composition and connection structure as the first pipeline valve module, the difference being that the second pipeline valve module is connected to the third water-fluoride heat exchanger.

[0021] In one possible implementation, the valve pump module includes: a ninth electric valve for the refrigerant pipe, a tenth electric valve for the refrigerant pipe, an eleventh electric valve for the refrigerant pipe, a twelfth electric valve for the refrigerant pipe, and a refrigerant circulation pump. The ninth electric valve for the refrigerant pipe is installed on the refrigerant inlet pipe of the fluoropolymer heat exchanger, the tenth electric valve for the refrigerant pipe is installed on the refrigerant return pipe of the fluoropolymer heat exchanger, one end of the eleventh electric valve for the refrigerant pipe is connected to the liquid inlet end of the eleventh electric valve for the refrigerant pipe, and the other end of the eleventh electric valve for the refrigerant pipe is connected to the liquid inlet end of the ninth electric valve for the refrigerant pipe. One end of the twelfth electric valve for the refrigerant pipe is connected to the liquid outlet end of the ninth electric valve for the refrigerant pipe, and the other end of the twelfth electric valve for the refrigerant pipe is connected to the liquid outlet end of the tenth electric valve for the refrigerant pipe.

[0022] The refrigerant circulation pump has its inlet end connected to the refrigerant pipeline inlet end of the fluoropolymer heat exchanger, and its outlet end connected to the inlet end of the ninth electric valve of the refrigeration pipe.

[0023] Secondly, embodiments of this application provide a data center waste heat recovery control method, applied to a control device in the data center waste heat recovery system described in the first aspect, comprising:

[0024] Obtain system load data from the data center side;

[0025] Based on the system load data, determine the total amount of waste heat to be recovered;

[0026] The total output heat of the waste heat recovery system is determined based on the preset recovery coefficient and the total amount of waste heat to be recovered.

[0027] According to the preset priority rules for waste heat recovery supply and the total heat output of the waste heat recovery system, the main waste heat recovery device is controlled to output the total heat of the waste heat recovery system through at least one of the heating hot water output module interface, the heating refrigerant output module interface, and the domestic hot water output module interface.

[0028] In one possible implementation, the system load data includes: first temperature data and first flow data of the hot water output terminal of the heating hot water output module interface, second temperature data and second flow data of the hot water output terminal of the heating hot water output module interface, third temperature data and third flow data of the hot water output terminal of the domestic hot water output module interface, fourth temperature data and fourth flow data of the hot water input terminal of the domestic hot water output module interface, and total heat of the multi-split air conditioning terminal.

[0029] The step of determining the total amount of waste heat to be recovered based on the system load data includes:

[0030] The amount of waste heat recovered from heating hot water is determined based on the first temperature data, the second temperature data, the first flow rate data, and the second flow rate data.

[0031] The amount of waste heat recovered from domestic hot water is determined based on the third temperature data, the fourth temperature data, the third flow rate data, and the fourth flow rate data.

[0032] The total amount of waste heat to be recovered is determined based on the amount of waste heat recovered from heating hot water, the amount of waste heat recovered from domestic hot water, and the total heat output of the multi-split air conditioning unit.

[0033] In one possible implementation, controlling the main waste heat recovery device to output the total heat from the waste heat recovery system through at least one of the heating hot water output module interface, the heating refrigerant output module interface, and the domestic hot water output module interface, according to a preset waste heat recovery supply priority rule and the total heat output of the waste heat recovery system, includes:

[0034] When the main waste heat recovery device is detected to be operating in a mode where it primarily recovers waste heat to supply comfort air conditioning, and when the total heat output of the waste heat recovery system is less than or equal to the heat required by the comfort air conditioning terminal, the main waste heat recovery device is controlled to output all of its total heat output from the comfort air conditioning terminal through the heating hot water output module interface, according to a preset recovery supply priority rule.

[0035] When it is detected that the total heat output of the waste heat recovery system is greater than the heat required by the comfort air conditioning terminal and less than the sum of the heat required by the domestic hot water, the comfort air conditioning terminal, and the multi-split air conditioning terminal, the total heat output of the waste heat recovery main device is controlled to be output from the comfort air conditioning terminal to meet the heat required by the comfort air conditioning terminal according to the preset recovery supply priority rule. Then, the remaining heat of the total heat output of the waste heat recovery main device is output from the domestic water supply and return pipe or the multi-split air conditioning terminal according to the preset priority.

[0036] Thirdly, embodiments of this application provide an electronic device, including: a memory and a processor;

[0037] The memory stores computer-executed instructions;

[0038] The processor executes computer execution instructions stored in the memory, causing the processor to perform the first aspect and / or various possible implementations of the first aspect as described above.

[0039] Fourthly, embodiments of this application provide a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the first aspect and / or various possible implementations of the first aspect.

[0040] Fifthly, embodiments of this application provide a computer program product, including a computer program that, when executed by a processor, implements the first aspect and / or various possible implementations of the first aspect.

[0041] The data center waste heat recovery system, method, electronic equipment, and storage medium provided in this application embodiment establish a collaborative architecture of a main waste heat recovery device, waste heat recovery pipelines, and a control device. The main device is equipped with multiple output interfaces for heating hot water, heating refrigerant, and domestic hot water, which are respectively connected to comfort air conditioning terminals, multi-split air conditioning terminals, and domestic water supply and return pipes. The pipelines are connected to the data center chilled water and / or cooling water supply and return pipes. The control device collects system load data, calculates the waste heat to be recovered and the total output heat, and controls the main device to output heat through at least one interface according to a preset priority, realizing multi-scenario energy supply adaptation, efficiently utilizing waste heat resources, improving energy utilization efficiency and system stability, and reducing carbon emissions. Attached Figure Description

[0042] 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.

[0043] Figure 1 A schematic diagram of an existing centralized waste heat recovery system for water-ring heat pumps provided in this application;

[0044] Figure 2 A schematic diagram of an existing water-loop heat pump multi-unit waste heat recovery system provided for this application;

[0045] Figure 3 A schematic diagram of the data center waste heat recovery system provided in this application;

[0046] Figure 4 A schematic diagram of the waste heat recovery system of the data center provided in this application under waste heat recovery operation conditions;

[0047] Figure 5 A structural schematic diagram of the cooling operation of the data center waste heat recovery system provided in this application;

[0048] Figure 6 This is a structural schematic diagram of the pipeline valve module provided in this application;

[0049] Figure 7 A structural schematic diagram of the waste heat recovery operation of the pipeline valve module provided in this application;

[0050] Figure 8 A structural schematic diagram of the pipeline valve module under refrigeration operation provided in this application;

[0051] Figure 9 A schematic diagram of the valve pump module provided in this application;

[0052] Figure 10 A schematic diagram illustrating the application of the data center waste heat recovery system provided in this application;

[0053] Figure 11 A flowchart illustrating the data center waste heat recovery method provided in this application;

[0054] Figure 12 A schematic diagram of the data center waste heat recovery device provided in this application;

[0055] Figure 13 A schematic diagram of the structure of the electronic device provided in this application.

[0056] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0057] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0058] In existing technologies, data centers utilize waste heat recovery and reuse technologies to apply waste heat for building heating, domestic hot water, etc., which can reduce carbon emissions or the use of high-grade energy, improve energy efficiency, reduce environmental pollution, and save energy costs. Data center waste heat recovery methods can be divided into wind-side heat recovery and water-side heat recovery.

[0059] Air-side heat recovery recovers heat from the hot air in a data center to preheat fresh air, reducing its heat load and saving energy. Air-side heat recovery can be applied in data centers using either centralized or decentralized air conditioning systems. It is divided into air conditioning return air heat recovery and air conditioning condensate exhaust air heat recovery. Air conditioning return air heat recovery extracts heat from the return air of the air conditioning equipment, primarily recovering heat from the equipment in the server room and ambient heat. Air conditioning condensate exhaust air heat recovery extracts heat from the exhaust air from the air conditioning condenser, recovering heat from the condensation of the air conditioning system and the heat from the fans. Due to the dispersed nature of data center server rooms and the relatively low temperature of the hot air, waste heat collection and utilization are relatively difficult, resulting in poor overall economic efficiency for heat recovery and utilization. Therefore, large-scale application of air-side heat recovery systems in data centers is currently limited.

[0060] Water-side heat recovery recovers heat from the air conditioning water system and is applied in data centers using centralized air conditioning systems. Water-side heat recovery is currently the most widely used method in data centers. Depending on the heat user, waste heat recovery systems mainly include centralized water-loop heat pump waste heat recovery systems and multi-split water-loop heat pump waste heat recovery systems. In summer, centralized water-loop heat pump waste heat recovery systems use water source heat pump units for cooling, with heat from the air conditioning system being discharged through cooling towers; in winter, they utilize waste heat from the data center, extracting heat from the chilled or cooling water of the data center's cooling system and recovering it through water source heat pump units. The working fluid at the output of the centralized water-loop heat pump waste heat recovery system is hot water. In data center buildings, this system is typically used in areas such as corridors, offices, elevator lobbies, and entrance halls. It cannot be used in electrical equipment rooms that require winter heating, such as battery rooms (battery rooms require that water not enter the room).

[0061] Figure 1 The schematic diagram of the existing water-loop heat pump centralized waste heat recovery system provided in this application is as follows: Figure 1As shown, the water-loop heat pump multi-split waste heat recovery system utilizes the water-loop heat pump multi-split unit for cooling in summer, with heat from the air conditioning system being discharged through a cooling tower. In winter, it utilizes waste heat from the data center, extracting heat from the chilled water or cooling water of the data center's cooling system and recovering it through the water-loop heat pump multi-split unit. The working fluid at the output of the water-loop heat pump multi-split waste heat recovery system is refrigerant. In data center buildings, this system is typically used for battery rooms, etc. However, because the cooling or heating capacity of a single water-loop heat pump multi-split unit is relatively small, the unit occupies a significant amount of space when used for waste heat recovery in data centers.

[0062] Figure 2 A schematic diagram of an existing water-loop heat pump multi-split unit waste heat recovery system provided in this application is shown below. Figure 2 As shown, due to the different applicability of centralized waste heat recovery systems and multi-split waste heat recovery systems for water-loop heat pumps, if a conventional data center adopts a centralized waste heat recovery system for water-loop heat pumps, the battery room and the fresh air cooling and heating source set up in the computer room need to be set up separately; if a multi-split waste heat recovery system for water-loop heat pumps is adopted, a large number of multi-split water-loop heat pump units need to be set up in corridors, offices and other areas, which are scattered and inconvenient for centralized maintenance.

[0063] In existing technologies, waste heat recovery devices that recover waste heat from data centers through a single output path can only meet the needs of a single energy supply scenario. This results in technical problems such as low utilization rate of waste heat resources and inability to adapt to the differentiated energy supply needs of multiple regions.

[0064] The data center waste heat recovery system, method, electronic equipment, and storage medium provided in this application solve the technical problems of poor adaptability to existing systems and insufficient utilization of waste heat resources by configuring a main waste heat recovery device with multiple output module interfaces for heating hot water, heating refrigerant, and domestic hot water, connecting it to the data center chilled water and / or cooling water supply and return pipelines, and using a control device to collect load data, calculate the amount of waste heat recovered, and allocate the output according to a preset priority.

[0065] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0066] Figure 3 This is a schematic diagram of the data center waste heat recovery system provided in this application, as shown below. Figure 3 As shown, this embodiment provides a data center waste heat recovery system, which includes:

[0067] Waste heat recovery main unit, waste heat recovery pipeline and control device.

[0068] The main waste heat recovery unit is electrically connected to the control unit. The input end of the main waste heat recovery unit is connected to the output end of the waste heat recovery pipeline. The output end of the main waste heat recovery unit includes one or more of the following: heating hot water output module interface, heating refrigerant output module interface, and domestic hot water output module interface. The heating hot water output module interface is connected to the comfort air conditioning terminal, the heating refrigerant output module interface is connected to the multi-split air conditioning terminal, and the domestic hot water output module interface is connected to the domestic water supply and return pipe.

[0069] The input end of the waste heat recovery pipeline is connected to the chilled water supply and return pipeline and / or cooling water supply and return pipeline of the data center.

[0070] The control device is used to: acquire system load data from the data center side; determine the total amount of waste heat to be recovered based on the system load data; determine the total output heat of the waste heat recovery system based on the preset recovery coefficient and the total amount of waste heat to be recovered; and control the main waste heat recovery device to output the total heat of the waste heat recovery system through at least one of the heating hot water output module interface, the heating refrigerant output module interface, and the domestic hot water output module interface, based on the preset waste heat recovery supply priority rules and the total output heat of the waste heat recovery system.

[0071] Specifically, the waste heat recovery main unit is based on the heat pump cycle principle. Through the coordinated operation of the compressor, four-way valve, heat exchangers (first water-fluoride heat exchanger, second water-fluoride heat exchanger, third water-fluoride heat exchanger, and fluorine-fluoride heat exchanger), expansion valve, and electric valve, it achieves switching between waste heat recovery and cooling modes. Simultaneously, it constructs three independent output paths: heating hot water, heating refrigerant, and domestic hot water. Through a multi-interface design, it connects to comfort air conditioning terminals, multi-split air conditioning terminals, and domestic water supply and return pipes, undertaking the functions of waste heat enhancement, conversion, and targeted output, adapting to the energy needs of different scenarios. It achieves integrated operation of a single unit with multiple energy outputs, reducing equipment redundancy in separate systems, improving space utilization, and ensuring stable energy supply throughout the year through mode switching, thus expanding the system's applicability.

[0072] The waste heat recovery pipeline connects to the data center's chilled water supply and return pipelines and / or cooling water supply and return pipelines, constructing an input channel for the waste heat carrier (chilled water, cooling water), and utilizing the fluid flow characteristics to achieve stable heat transfer. Low-grade waste heat generated during data center operation is introduced from the existing air conditioning pipelines into the main waste heat recovery unit, while simultaneously providing an energy transmission path for the output end of the main waste heat recovery unit, ensuring the continuity of the system's energy cycle. This achieves effective capture and transfer of waste heat resources, adapts to the existing data center piping architecture, reduces the difficulty of modification, ensures the stability and continuity of waste heat supply, and provides a fundamental guarantee for subsequent waste heat conversion and utilization.

[0073] The control device, based on data acquisition and logical operations, obtains system load data, calculates the total amount of usable waste heat by combining it with preset recovery coefficients, and dynamically adjusts the waste heat distribution according to preset priority rules, realizing the linkage control of equipment such as electric valves and water pumps. By accurately sensing load changes, calculating the amount of waste heat recovered, and allocating waste heat output paths and output ratios according to rules, it ensures the matching of energy consumption scenarios with demand, realizes intelligent and refined allocation of waste heat resources, improves waste heat utilization rate, avoids energy waste, and adapts to different load conditions, ensuring the stability and efficiency of system operation.

[0074] The data center waste heat recovery system provided in this embodiment of the invention achieves multi-scenario recovery and utilization of data center waste heat through the multi-output integrated design of the waste heat recovery main device, the efficient energy transmission of the waste heat recovery pipeline, and the intelligent and precise regulation of the control device. This improves energy utilization efficiency, reduces system operating energy consumption, and enhances energy supply adaptability and operational stability.

[0075] This embodiment provides a detailed description of the waste heat recovery main device described in the above embodiments, including a first electric valve, a second electric valve, a third electric valve, a fourth electric valve, a fifth electric valve, a sixth electric valve, a seventh electric valve, an eighth electric valve, a first expansion valve, a second expansion valve, a third expansion valve, a first water-fluorine heat exchanger, a second water-fluorine heat exchanger, a third water-fluorine heat exchanger, a fluorine-fluorine heat exchanger, a first pipeline valve module, a valve pump module, a second pipeline valve module, a compressor, and a four-way valve.

[0076] The first electric valve and the first expansion valve are connected in parallel and then connected in series with the first water-fluoride heat exchanger, the first pipeline valve module, and the fourth electric valve to form the first branch.

[0077] The second electric valve and the second expansion valve are connected in parallel to form the second branch with the fluoropolymer heat exchanger, the valve pump module, and the fifth electric valve.

[0078] The second water-fluoride heat exchanger and the seventh electric valve form the third branch.

[0079] The third electric valve and the third expansion valve are connected in parallel to form the fourth branch with the third water-fluoride heat exchanger and the second pipeline valve module.

[0080] The ports on the same side of the first, second, third, and fourth branches are all interconnected. The ports on the other side of the first and second branches are connected to the first port of the four-way valve. The port on the other side of the fourth branch is connected in series with the eighth electric valve and in parallel with the third branch, and then connected to the first port of the four-way valve through the sixth electric valve. The port on the other side of the fourth branch is also connected to the second port of the four-way valve. The two ends of the compressor are connected to the third and fourth ports of the four-way valve, respectively.

[0081] The first electric valve, the second electric valve, the third electric valve, the fourth electric valve, the fifth electric valve, the sixth electric valve, the seventh electric valve, the eighth electric valve, the first water-fluoride heat exchanger, the second water-fluoride heat exchanger, the third water-fluoride heat exchanger, the fluoride heat exchanger, the first pipeline valve module, the valve pump module, the second pipeline valve module, the compressor, and the four-way valve are all electrically connected to the control device.

[0082] Specifically, the eight electric valves, based on electromagnetic control principles, receive electrical signals from the control device to open, close, or adjust the valve core, thereby controlling the flow of fluid (water or refrigerant) in the corresponding branches, adhering to precise control rules for fluid pathways. As control components for branch flow, the electric valves control the fluid paths of the four branches and the switching of operating conditions, enabling independent operation or collaborative work of each output module and ensuring the accuracy of branch switching. This allows for rapid switching and precise control of the fluid paths in each branch, providing a fundamental guarantee for multiple output modes and operating condition transitions, and improving the flexibility and reliability of system operation.

[0083] Expansion valves, based on the principle of fluid throttling and expansion, change the flow cross-sectional area of ​​the fluid (refrigerant) by adjusting the valve core opening. This causes the high-pressure fluid to depressurize and cool, forming a gas-liquid two-phase flow, adapting to the heat exchanger's medium state requirements. Connected in parallel with corresponding electric valves, they perform refrigerant state regulation in their respective branches, providing a suitable heat exchange medium to the heat exchanger and ensuring efficient heat exchange. They optimize the thermodynamic state of the heat exchange medium, improve the heat transfer efficiency of the heat exchanger, ensure the energy supply quality of each output path, and enhance the stability of the system's energy conversion.

[0084] Water-refrigerant heat exchangers utilize indirect heat transfer, achieving heat transfer between water and refrigerant through the heat transfer wall. The temperature difference between the two fluids drives the heat transfer, following the synergistic effect of heat conduction and convection. Integrated into different branches, they absorb, enhance, and transfer low-grade waste heat, providing energy support for heating hot water and domestic hot water output. They efficiently complete the heat exchange between water and refrigerant, converting low-grade waste heat into usable energy, ensuring the output medium temperature meets standards, and improving system energy utilization efficiency.

[0085] Fluorofluoropolymer heat exchangers utilize a dedicated heat transfer surface to transfer heat between two refrigerants through a partitioned heat transfer system. They leverage the differences in the thermodynamic properties of the refrigerants to enhance heat exchange, adhering to the laws of fluid heat transfer and phase change. Adapted to heating refrigerant output branches, they handle the heat conversion between refrigerants, providing suitable cold and heat source media for multi-split air conditioning terminals. This ensures efficient heat transfer between refrigerants, meets the energy needs of multi-split air conditioning terminals, expands the adaptability of the system's refrigerant output, and improves the compatibility of multiple output systems.

[0086] The pipeline valve module regulates fluid flow direction through the coordinated opening and closing of internal electric valves, ensuring the corresponding water-fluorine heat exchanger is always in a counter-current heat exchange state. Based on the principle of optimal counter-current heat transfer efficiency in heat transfer, this enhances heat transfer performance. Function: Working in conjunction with the first and third water-fluorine heat exchangers, it optimizes the flow path of the heat exchange medium, ensuring the heat exchanger maintains high-efficiency heat exchange under different operating conditions, and assists in improving the energy conversion efficiency of the branch circuit. Effect: Maximizes heat exchanger efficiency, reduces energy loss during heat transfer, supports efficient operation of the system in multiple output modes, and enhances the economic efficiency of system energy utilization.

[0087] The valve and pump module combines the flow control of an electric valve with the power output of a water pump. It regulates the refrigerant flow path through the electric valve and provides circulation power through the water pump, ensuring stable refrigerant flow in the branch circuits, following the principles of fluid dynamics circulation. It adapts to the refrigerant circulation requirements of the second branch, controlling the refrigerant flow path and flow rate to provide a continuous supply of cold and heat source media to the multi-split air conditioning terminals, ensuring the continuity of branch circuit operation. It effectively guarantees the stability and flow adaptability of the refrigerant circulation, improves the power supply reliability of the multi-split air conditioning terminals, strengthens the operational stability of the system's refrigerant output path, and expands the system's adaptability to various scenarios.

[0088] The compressor, driven by a motor, moves its piston or rotor to compress the refrigerant, increasing its pressure and temperature to provide the core power for the heat pump cycle, following the vapor compression cycle principle. By driving the refrigerant to circulate in various heat exchangers and pipelines, it absorbs, enhances, and releases waste heat, providing power support for energy supply through multiple output paths, ensuring continuous power for system energy conversion, enhancing the refrigerant's energy level, guaranteeing the energy supply intensity of each output path, and supporting the system's efficient operation under different conditions.

[0089] The four-way valve receives signals from the control device and changes the position of the valve core inside the valve, thereby switching the refrigerant circulation path to achieve the conversion between waste heat recovery mode and cooling mode, following the mechanical laws of fluid path switching. By switching paths, it adapts to different operating needs in winter heating and summer cooling, ensuring the feasibility of the system's energy supply in multiple scenarios throughout the year, realizing rapid and reliable switching of system operating conditions, ensuring the system's adaptability in different seasonal environments, expanding the system's operating range, and enhancing the system's comprehensive utilization value.

[0090] Specifically, through the series and parallel pipeline design of four branches, the various structures form an organic whole. The electric valve and expansion valve work together to regulate the on / off state of the branches and the medium state. The compressor provides circulation power, the four-way valve dominates the switching of operating conditions, the heat exchanger completes heat conversion, the valve module optimizes heat exchange efficiency, and the various structures are linked according to control commands to build a multi-path, multi-operating-condition heat pump circulation system to achieve energy capture, conversion and directional output.

[0091] Each branch is connected through a port to form a complete fluid circulation loop. Electric valves and expansion valves control the on / off state of the branch and the parameters of the medium. The compressor drives the circulation operation, the four-way valve switches the operating mode, the heat exchanger undertakes heat exchange, and the valve module and water pump module assist in optimizing the operating state. Together, they support the multi-output functions of heating hot water, heating refrigerant, and domestic hot water, adapting to the energy needs of different scenarios.

[0092] The coordinated operation of various structures enables precise matching of operating conditions and multiple output paths, ensuring the stability and efficiency of the system under different operating conditions, reducing energy loss caused by component redundancy, improving energy conversion and utilization efficiency, and enhancing the overall operating performance of the system.

[0093] Figure 4 This is a structural diagram of the waste heat recovery system for the data center provided in this application, showing its operating conditions. Figure 4 As shown, the four-way valve switches to the heating position, and the compressor starts running. The first, second, fourth, fifth, and seventh electric valves in the diagram are all open (arrows point to their respective heat exchangers, indicating that refrigerant can flow smoothly to the heat exchangers through the valves). The third expansion valve opens simultaneously, forming a complete heat pump heating cycle. Among these:

[0094] The high-temperature, high-pressure refrigerant discharged from the compressor is diverted by the four-way valve and then flows synchronously into each heat exchange branch along the open valve indicated by the arrow.

[0095] First water-fluorine heat exchanger branch: Refrigerant flows into the first water-fluorine heat exchanger through the fourth electric valve (arrow pointing), exchanges heat with the water medium in the first pipeline valve module, and supplies the heat to the comfort air conditioning system connected to the fan coil unit terminal; after heat exchange, the refrigerant flows out of the branch along the arrow through the first electric valve.

[0096] Fluoro-fluorine heat exchanger branch: Refrigerant flows into the fluoro-fluorine heat exchanger through the fifth electric valve (arrow pointing), exchanges heat through the refrigerant circuit, and provides heating energy for the multi-split system; after heat exchange, the refrigerant flows out of the branch along the arrow through the second electric valve.

[0097] Second water-fluoride heat exchanger branch: The refrigerant flowing out of the preceding branches flows along the arrow through the opened seventh electric valve into the second water-fluoride heat exchanger, where it exchanges heat with the hot water pipeline marked in the diagram for the whole year, converting waste heat into a continuous supply of domestic hot water; the refrigerant that has completed the heat exchange continues to flow back to the four-way valve, and finally returns to the compressor, achieving circulation while ensuring a stable output of domestic hot water throughout the year.

[0098] The third water-fluoride heat exchanger branch: The refrigerant flows into the third water-fluoride heat exchanger through the third expansion valve (arrow pointing), and extracts the low-grade waste heat recovered in winter (data center process system heat dissipation) through the second pipeline valve module. After further increasing the energy density, it flows to the second water-fluoride heat exchanger along the arrow.

[0099] The waste heat recovery system, through the linkage of multiple heat exchangers and multiple terminals, synchronously distributes the waste heat from the data center to comfort air conditioning (fan coil units), multi-split air conditioning, hot water supply and other scenarios, realizing multi-dimensional recovery and tiered utilization of waste heat, covering different energy needs while improving the comprehensive utilization rate of waste heat resources.

[0100] Figure 5 This is a structural diagram of the data center waste heat recovery system under cooling operation as provided in this application; such as Figure 5 As shown, the four-way valve is in the refrigeration position, and the compressor is running. The first expansion valve, the second expansion valve, the third electric valve, the fourth electric valve, the fifth electric valve, the seventh electric valve, and the eighth electric valve are all kept open (the arrows in the figure flow to each component, indicating that the refrigerant can flow smoothly through all valves). The second pipeline valve module is in the summer cooling tower passage fully open state, completing the connection between the third water-fluorine heat exchanger and the outdoor heat dissipation end.

[0101] First water-fluorine heat exchanger branch: The refrigerant is throttled and depressurized through the first expansion valve and flows into the first water-fluorine heat exchanger (which is the evaporator at this time) along the arrow; the water circuit at the end of the fan coil unit connected to the first pipeline valve module completes heat exchange, absorbs heat from the water medium to cool the water, and provides cooling for the comfort air conditioning terminal; the refrigerant after heat exchange flows out through the fourth electric valve along the arrow and merges into the main circulation path of the system.

[0102] Fluorofluorine heat exchanger branch: The refrigerant is throttled and depressurized through the opened second expansion valve and flows into the fluorofluorine heat exchanger (which is the evaporator at this time) along the arrow; it exchanges heat through the refrigerant circuit to provide a cold source for the multi-split system, covering the cooling needs of the auxiliary area of ​​the computer room; the refrigerant after heat exchange flows out through the opened fifth electric valve along the arrow and merges with the refrigerant in the first water-fluorine heat exchanger branch.

[0103] Second water-fluoride heat exchanger branch: After the refrigerant flowing out of the first two branches merges, it flows into the second water-fluoride heat exchanger along the arrow through the opened seventh electric valve; it exchanges heat with the hot water pipeline marked in the figure for the whole year, recovers the low-grade waste heat generated during the refrigeration process, heats the cold water into domestic hot water and supplies it continuously; the refrigerant that has completed the heat exchange continues to flow to the subsequent path along the arrow to ensure the continuity of the cycle.

[0104] The third water-fluorine heat exchanger branch: The high-temperature and high-pressure refrigerant discharged from the compressor flows into the third water-fluorine heat exchanger (which is the condenser at this time) through the four-way valve along the arrow; the heat released by the refrigerant is transferred to the cooling tower circulating water, and the cooling tower discharges the heat to the outside; the refrigerant after heat dissipation is diverted along the arrow through the opened third electric valve and replenished to the first expansion valve and the second expansion valve branches respectively, thereby enhancing the cooling capacity supply efficiency of the refrigeration cycle.

[0105] The cooling mode satisfies the cooling needs of the data center while retaining the waste heat recovery (hot water output) function, achieving coordinated operation of cooling and waste heat utilization. This not only ensures environmental thermal management needs but also improves the overall energy utilization efficiency of the system.

[0106] This invention, through precise control of various electric valves and expansion valves, efficient heat exchange of heat exchangers, power support and operating condition switching of compressors and four-way valves, coordinated adaptation of pipeline valve modules and valve pump modules, and integrated design of multiple branches, realizes multi-energy output and flexible operating condition switching of the waste heat recovery main device, improves system energy conversion efficiency and scenario adaptability, and ensures the stability and continuity of energy supply.

[0107] Figure 6 The structural schematic diagram of the pipeline valve module provided in this application is as follows: Figure 6 As shown in the figure, this embodiment provides a detailed description of the first pipeline valve module in the above embodiment, including: the ninth electric valve, the tenth electric valve, the eleventh electric valve, and the twelfth electric valve of the water pipe.

[0108] The ninth electric valve is installed on the inlet pipe of the first water-fluoride heat exchanger, the tenth electric valve is installed on the return pipe of the first water-fluoride heat exchanger, one end of the eleventh electric valve is connected to the inlet end of the tenth electric valve, the other end of the eleventh electric valve is connected to the inlet end of the ninth electric valve, one end of the twelfth electric valve is connected to the outlet end of the ninth electric valve, and the other end of the twelfth electric valve is connected to the drain end of the tenth electric valve.

[0109] The second pipeline valve module has the same composition and connection structure as the first pipeline valve module, the difference being that the second pipeline valve module is connected to the third water-fluoride heat exchanger.

[0110] Specifically, the ninth electric valve in the water pipe controls the opening and closing of the valve core or adjusts the opening degree by receiving electrical signals from the control device, thereby controlling the flow and interruption of fluid in the inlet pipe of the first water-fluoride heat exchanger, following the synergistic law of electromagnetic induction and fluid path control. The ninth electric valve is responsible for opening or closing the fluid passage in the inlet pipe, adjusting the inlet flow rate in conjunction with system operating condition switching, and providing suitable fluid input conditions for the heat exchanger. This achieves precise flow and interruption of the fluid in the inlet pipe, ensuring the adaptability of the operating conditions on the heat exchanger's inlet side, laying the foundation for the stable operation of subsequent heat exchange processes, and improving the controllability of pipeline operation.

[0111] The tenth electric valve in the water pipe is driven by an electrical signal to actuate the valve core, thereby controlling the flow and shut-off of fluid in the return water pipeline of the first water-fluoride heat exchanger. This conforms to the principle of adapting electromagnetic drive to fluid transmission. The tenth electric valve is responsible for controlling the flow path on the return water side of the first water-fluoride heat exchanger, regulating the fluid circulation in the return water pipeline, and forming a complete fluid loop control with the inlet valve to ensure the orderly discharge of fluid after heat exchange. This achieves precise regulation of the fluid in the return water pipeline, ensuring stable reflux of fluid after heat exchange, maintaining the balance of fluid circulation within the heat exchanger, and improving the operational stability of the entire heat exchange loop.

[0112] The eleventh electric valve in the water pipe changes the fluid flow direction through valve core actuation, forming a connecting passage between the inlet ends of the tenth and ninth electric valves in the water pipe. This adapts to the fluid path requirements under different operating conditions and follows the mechanical laws of fluid loop switching. As an auxiliary control component for inlet-side path switching, the eleventh electric valve adjusts the fluid direction in the inlet pipeline through coordinated action with other valves, providing path support for counter-current heat exchange in the first water-fluoride heat exchanger. Flexible switching of the inlet-side fluid path ensures that the first water-fluoride heat exchanger can obtain a suitable inlet direction under different operating conditions, creating conditions for improving heat exchange efficiency and enhancing the adaptability of the pipeline system.

[0113] The twelfth electric valve in the water pipe uses electromagnetic drive to displace the valve core, thereby connecting the outlet end of the ninth electric valve and the discharge end of the tenth electric valve in the water pipe. This creates a switchable return water fluid path, adhering to the principles of fluid direction control and loop adaptation. The twelfth electric valve, in conjunction with the inlet-side switching valve, adjusts the return water direction and, together with other valves, constructs a fluid loop adapted to counter-current heat exchange. This optimizes the heat exchanger's heat exchange conditions, achieves precise switching of the return water fluid path, and ensures that the fluid in the first water-fluoride heat exchanger forms a counter-current state with the medium on the other side, maximizing the heat transfer temperature difference and improving the heat exchanger's heat exchange efficiency and energy utilization.

[0114] Specifically, the four electric valves are connected through specific pipelines to form a closed-loop control circuit. The ninth and tenth electric valves of the water pipe control the main inlet and outlet water passages respectively, while the eleventh and twelfth electric valves of the water pipe construct auxiliary switching passages. Through the coordinated opening and closing of each valve, the flow direction of the fluid in the first water-fluoride heat exchanger is changed, so that the heat exchanger is always in a countercurrent heat exchange state, following the core principle of optimal countercurrent heat exchange efficiency in heat transfer.

[0115] The ninth and tenth electric valves of the water pipe serve as the core of the main passage control, ensuring the basic circulation of fluid; the eleventh and twelfth electric valves of the water pipe work in conjunction with the main valve to adjust the fluid flow direction. The four valves work together to form a complete fluid direction control system, providing the optimal heat exchange conditions for the first water-fluoride heat exchanger.

[0116] The coordinated operation of each valve enables flexible switching of the fluid path, ensuring that the heat exchanger can maintain counter-current heat exchange mode under different operating conditions, significantly improving heat transfer efficiency, reducing energy loss during heat transfer, enhancing the compatibility between the pipeline system and the heat exchanger, and ensuring the overall system's energy conversion efficiency.

[0117] Figure 7 This is a structural schematic diagram of the waste heat recovery operation of the pipeline valve module provided in this application, as shown below. Figure 7 As shown, the ninth electric valve is in the open state and the tenth electric valve is in the closed state, thus establishing an effective connection between the water pipeline and the water-fluorine heat exchanger, ensuring the directionality of heat transfer.

[0118] High-temperature refrigerant flows into the water-fluorine heat exchanger through the refrigerant pipeline, serving as a waste heat carrier to provide heat. Simultaneously, the water medium in the water pipeline enters the water-fluorine heat exchanger through the opened ninth electric valve, where it undergoes indirect heat exchange with the high-temperature refrigerant. After absorbing the waste heat carried by the refrigerant, the water medium is output along the water pipeline (for subsequent hot water supply scenarios). The low-temperature refrigerant, having completed heat exchange, flows out through the other refrigerant pipeline to continue participating in the system circulation.

[0119] The water-fluorine heat exchanger serves as the core heat exchange component, enabling heat transfer between the refrigerant and the water medium. The ninth electric valve controls the flow between the water pipeline and the heat exchanger, while the tenth electric valve prevents water bypass by closing, ensuring that all the water medium flows through the heat exchanger to absorb residual heat.

[0120] By controlling the on / off state of valves and coordinating with the water-fluorine heat exchanger, the waste heat in the refrigerant circuit is transferred to the water pipeline in a directional manner, achieving efficient recovery of waste heat and providing energy support for the system's hot water energy consumption scenarios, thereby improving the utilization efficiency of waste heat resources.

[0121] Figure 8 This is a structural schematic diagram of the pipeline valve module under refrigeration operation provided in this application, as shown below. Figure 8As shown, both the eleventh and twelfth electric valves are in the open state, thus establishing a two-way connection between the water pipeline and the water-fluorine heat exchanger to ensure the circulation of cold energy transfer.

[0122] The process involves a low-temperature, low-pressure refrigerant flowing into a water-fluorine heat exchanger (acting as an evaporator) via a refrigerant pipeline. Simultaneously, water from the water pipeline enters the water-fluorine heat exchanger through the eleventh and twelfth electrically operated valves, where it undergoes indirect heat exchange with the low-temperature refrigerant. The water medium absorbs the heat from the refrigerant, cools down, and is then output along the water pipeline (for cooling at the refrigeration terminal). The refrigerant, having completed heat absorption, becomes a high-temperature, low-pressure state and flows out through the other refrigerant pipeline to continue participating in the system's refrigeration cycle.

[0123] The water-fluorine heat exchanger, as the core cold energy exchange component, realizes the heat transfer between the refrigerant and the water medium; the eleventh and twelfth electric valves are responsible for the flow control function of the water pipeline, ensuring that the water medium flows stably through the heat exchanger to complete the cooling and avoiding the interruption of the cold energy transfer path.

[0124] By coordinating the opening of valves and heat exchange with the water-fluorine heat exchanger, directional cooling of the water medium is achieved, providing cold source support for the refrigeration terminal of the system. At the same time, it works with the refrigerant circuit to complete the heat transfer of the refrigeration cycle, ensuring the efficient satisfaction of refrigeration needs.

[0125] This invention, through the main channel control of the ninth and tenth electric valves of the water pipe and the path switching coordination of the eleventh and twelfth electric valves of the water pipe, constructs a closed-loop control circuit adapted to countercurrent heat exchange, thereby optimizing the heat exchange conditions of the first water-fluoride heat exchanger, improving heat exchange efficiency and energy utilization, and ensuring the stability and adaptability of the pipeline system.

[0126] Figure 9 The structural schematic diagram of the valve pump module provided in this application is as follows: Figure 9 As shown in the figure, this embodiment provides a detailed description of the valve and pump module in the above embodiment, including: a ninth electric valve for the refrigeration pipe, a tenth electric valve for the refrigeration pipe, an eleventh electric valve for the refrigeration pipe, a twelfth electric valve for the refrigeration pipe, and a refrigerant circulation pump. The ninth electric valve for the refrigeration pipe is installed on the refrigerant inlet pipe of the fluoropolymer heat exchanger, and the tenth electric valve for the refrigeration pipe is installed on the refrigerant return pipe of the fluoropolymer heat exchanger. One end of the eleventh electric valve for the refrigeration pipe is connected to the liquid inlet end of the tenth electric valve for the refrigeration pipe, and the other end of the eleventh electric valve for the refrigeration pipe is connected to the liquid inlet end of the ninth electric valve for the refrigeration pipe. One end of the twelfth electric valve for the refrigeration pipe is connected to the liquid outlet end of the ninth electric valve for the refrigeration pipe, and the other end of the twelfth electric valve for the refrigeration pipe is connected to the liquid outlet end of the tenth electric valve for the refrigeration pipe.

[0127] The refrigerant circulation pump has its inlet end connected to the refrigerant pipeline inlet end of the fluoropolymer heat exchanger, and its outlet end connected to the inlet end of the ninth electric valve of the refrigeration pipe.

[0128] Specifically, the ninth electric valve of the refrigerant pipe receives an electrical signal from the control device to drive the valve core, thereby controlling the flow and opening of the fluid in the refrigerant inlet pipe of the fluoropolymer heat exchanger, following the synergistic principle of electromagnetic induction and fluid path control. It controls the refrigerant inlet side, opening or closing the inlet passage and adjusting the refrigerant input flow rate in conjunction with system operating condition switching, providing suitable medium input conditions for the fluoropolymer heat exchanger. This achieves precise on / off control and flow regulation of the refrigerant inlet passage, ensuring the adaptability of the operating conditions on the fluoropolymer heat exchanger's inlet side, laying the foundation for efficient heat exchange between refrigerants, and improving the controllability of pipeline operation.

[0129] The tenth electric valve on the refrigerant pipe controls the flow rate and on / off state of the fluid in the refrigerant return water line of the fluoropolymer heat exchanger by displacing the valve core via an electrical signal. This conforms to the principle of matching electromagnetic drive with refrigerant circulation. It controls the refrigerant return path on the liquid side, regulating the circulation state of the return line and forming a complete refrigerant loop control with the inlet valve, ensuring the orderly return of refrigerant after heat exchange. This achieves precise control of the refrigerant return path, ensuring stable refrigerant return after heat exchange, maintaining the dynamic balance of refrigerant circulation within the fluoropolymer heat exchanger, and improving the operational stability of the entire heat exchange loop.

[0130] The eleventh electric valve of the refrigerant pipe establishes a connection path through valve core operation, connecting the liquid inlet end of the tenth electric valve of the refrigerant pipe with the liquid inlet end of the ninth electric valve of the refrigerant pipe. This adapts to the refrigerant flow direction requirements under different operating conditions, following the mechanical laws of fluid loop switching. By coordinating with other valves, it adjusts the refrigerant inlet direction, providing path support for counter-current heat exchange in the fluoropolymer heat exchanger. It flexibly switches the refrigerant flow path on the inlet side, ensuring that the fluoropolymer heat exchanger can obtain a suitable inlet direction under different operating conditions, creating conditions for improving the heat exchange efficiency between refrigerants and enhancing the operating condition adaptability of the piping system.

[0131] The twelfth electric valve of the refrigerant pipe uses electromagnetic drive to displace the valve core, thereby connecting the liquid outlet ends of the ninth and tenth electric valves of the refrigerant pipe. This creates a switchable return-liquid fluid path, adhering to the core principles of refrigerant direction control and loop adaptation. By cooperating with the inlet-side switching valve to adjust the refrigerant return direction, and working in conjunction with other valves, it constructs a refrigerant loop adapted for counter-current heat exchange, optimizing the heat exchange conditions of the fluoropolymer heat exchanger. This achieves precise switching of the refrigerant path on the return side, ensuring that the two refrigerants in the fluoropolymer heat exchanger form a counter-current state, maximizing the heat transfer temperature difference, and improving the heat exchanger's heat exchange efficiency and energy conversion effect.

[0132] The refrigerant circulation pump generates power by driving an impeller to rotate via a motor. This power overcomes pipeline resistance and propels the refrigerant to flow continuously in the loop, following the principles of fluid dynamics transmission and circulation adaptation. It provides continuous power to the loop consisting of the fluoropolymer heat exchanger and various valves, ensuring that the refrigerant flow rate meets heat exchange requirements and maintains the continuity of the loop circulation. It also provides stable power support for the refrigerant circulation, ensuring that the refrigerant flow rate within the loop matches the heat exchange requirements, avoiding a decrease in heat exchange efficiency due to insufficient flow, and guaranteeing the continuity and reliability of the entire module's operation.

[0133] Specifically, four electric valves are connected through specific pipelines to form a closed-loop control circuit. The ninth and tenth electric valves of the refrigeration pipe respectively control the main flow path of refrigerant inlet and outlet, while the eleventh and twelfth electric valves of the refrigeration pipe construct an auxiliary switching path. The refrigerant circulation pump provides circulation power. Through the coordinated action of each component, the flow direction of the refrigerant in the fluoropolymer heat exchanger is changed, so that the heat exchanger is always in a countercurrent heat exchange state, following the core principle of optimal countercurrent heat exchange efficiency in heat transfer.

[0134] The ninth and tenth electric valves of the refrigeration pipe control the main passage to ensure the basic circulation of refrigerant; the eleventh and twelfth electric valves of the refrigeration pipe are used for path switching and adjust the refrigerant flow direction by cooperating with the main valve; the refrigerant circulation pump provides continuous power to the entire circuit. The five valves work together to form a complete refrigerant circuit control system to provide the optimal heat exchange conditions for the fluoropolymer heat exchanger.

[0135] The coordinated operation of each structure enables flexible switching and stable circulation of the refrigerant path, ensuring that the fluoropolymer heat exchanger can maintain a counter-current heat exchange mode under different operating conditions, significantly improving the heat transfer efficiency between refrigerants, reducing energy transfer losses, enhancing the compatibility between the module and the fluoropolymer heat exchanger, and ensuring the stable operation of the system's refrigerant output path.

[0136] This invention achieves precise control and stable circulation of the refrigerant circuit in a fluoropolymer heat exchanger by switching and controlling the on / off states of the ninth to twelfth electric valves on the refrigeration pipe, combined with the continuous power supply of the refrigerant circulation pump. This improves heat exchange efficiency and energy supply reliability, and enhances the adaptability of the module and system to different operating conditions.

[0137] Figure 10 This is an application diagram of the data center waste heat recovery system provided in this application, such as... Figure 10 As shown in the example, this embodiment illustrates the application of a data center waste heat recovery system:

[0138] The data center process air conditioning system (core heat dissipation unit) shown on the left in the diagram is used to handle the data center's process heat dissipation needs. It includes components such as cooling towers, multiple chiller units, plate heat exchangers, cooling water pumps, and chilled water pumps.

[0139] The chiller provides low-temperature chilled water to the data center. The chilled water is circulated by the chilled water pump to absorb heat from the data center. The cooling water pump drives the cooling water to circulate between the cooling tower and the chiller, exhausting the heat dissipated by the chiller to the outside. The plate heat exchanger, as a waste heat extraction component, is connected to the fluid circulation loop on the process side to separate recoverable waste heat from the chilled water / cooling water system and provide energy input to the system on the right.

[0140] The right side of the image shows a comfort air conditioning system (waste heat recovery unit), which provides energy for multiple scenarios based on recovered waste heat. It includes a cooling tower, a data center waste heat recovery control system, a water pressure replenishment system, and various terminal devices.

[0141] The data center waste heat recovery control system receives waste heat transferred from the process side plate heat exchanger and converts it into three types of output through heat pump circulation: hot and cold water supply to comfort air conditioning terminals, refrigerant supply to multi-split air conditioning terminals, and domestic hot water (supply and return water pipelines); a pressure replenishment and stabilization water equipment is used to maintain the pressure stability of the water system; and a "winter off, summer on" and "winter on, summer off" operating condition switching switch is configured to adapt to seasonal needs (focusing on waste heat heating / hot water supply in winter and partially cooling supply in summer).

[0142] In winter, the heat source for domestic hot water is the continuous waste heat from the data center's process air conditioning system: the third water-fluoride heat exchanger is connected to the waste heat loop on the process side by switching the passage through the second pipeline valve module, and the waste heat from the data center is used to maintain the supply of domestic hot water; in summer, the output of hot water is ensured simultaneously through waste heat recovery under cooling conditions.

[0143] While the data center's process air conditioning system completes heat dissipation, it extracts waste heat through plate heat exchangers and transfers it to the comfort air conditioning system. The data center's waste heat recovery control system converts waste heat into a source of cold and heat for comfort air conditioning, refrigerant for multi-split systems, and domestic hot water, realizing the tiered utilization of waste heat across scenarios. This ensures the data center's process heat dissipation needs while converting redundant heat into energy supply for comfort air conditioning and domestic use, achieving coordinated operation of heat dissipation, waste heat recovery, and energy use across multiple scenarios.

[0144] Figure 11 The flowchart diagram of the data center waste heat recovery control method provided in this application is as follows: Figure 11 As shown, this embodiment provides a data center waste heat recovery control method, which includes the following steps:

[0145] Step S1101: Obtain system load data from the data center side.

[0146] Specifically, based on data acquisition technology and sensor sensing mechanisms, temperature, flow, and other sensors deployed at key locations in the data center capture real-time operating parameters related to waste heat generation. Adhering to standardized data transmission and acquisition specifications ensures the real-time nature and integrity of the data. By collecting core system operation data, the system provides the initial basis for subsequent calculations of waste heat recovery, determination of output heat, and priority allocation, effectively guaranteeing the accuracy and real-time nature of the raw data and avoiding errors in subsequent calculations and control decisions due to data deviations.

[0147] Step S1102: Determine the total amount of waste heat to be recovered based on the system load data.

[0148] Specifically, based on the correlation between the law of conservation of energy and the waste heat generation in data centers, a quantitative correspondence between system load and waste heat output is established. The collected load data is then processed to obtain the total amount of recoverable waste heat. By transforming abstract system load data into concrete quantifiable values ​​of recoverable waste heat, a bridge is built between load data and waste heat utilization, providing a quantitative reference for subsequent heat output and distribution. This achieves accurate quantification of the waste heat to be recovered, avoiding overestimation or underestimation, ensuring that control decisions in subsequent steps match actual waste heat resources, and improving the scientific rigor of the control method.

[0149] Step S1103: Determine the total output heat of the waste heat recovery system based on the preset recovery coefficient and the total amount of waste heat to be recovered.

[0150] Specifically, by introducing a preset recovery coefficient to correct the theoretical total recoverable waste heat, and following the adaptation law between actual recovery capacity and theoretical value, the actual output heat of the system is obtained. By correcting the deviation between the theoretical waste heat recovery amount and the actual output capacity, the total output heat is made to better match the actual operating conditions and recovery efficiency of the system, avoiding the disconnect between energy distribution and actual supply capacity, ensuring the rationality and feasibility of the total output heat of the waste heat recovery system, making full use of waste heat resources without exceeding the actual carrying capacity of the system, and improving the economy and stability of energy utilization.

[0151] Step S1104: According to the preset waste heat recovery supply priority rules and the total heat output of the waste heat recovery system, control the main waste heat recovery device to output the total heat of the waste heat recovery system through at least one of the heating hot water output module interface, the heating refrigerant output module interface and the domestic hot water output module interface.

[0152] Specifically, based on preset priority logic and coordinated control of multiple output interfaces, the total output heat is dynamically allocated according to the demand priority of different energy consumption scenarios, following the regulation law of matching energy supply and demand. By coordinating the energy allocation of the three output modules of heating hot water, heating refrigerant, and domestic hot water, the energy demand of high-priority scenarios is prioritized, achieving orderly energy supply for multiple output scenarios, realizing precise allocation and efficient utilization of waste heat resources, meeting the differentiated energy needs of different scenarios, improving the adaptability and flexibility of the system's energy supply, and avoiding energy waste.

[0153] The data center waste heat recovery control method provided in this invention achieves intelligent control of the entire process of data center waste heat recovery through precise data acquisition, scientific waste heat analysis, adaptive output heat, and priority of energy allocation. This improves waste heat utilization efficiency and energy supply adaptability, and ensures the stability and economy of system operation.

[0154] This embodiment details the process of determining the total waste heat to be recovered based on system load data in the above embodiments. The system load data includes: first temperature and first flow data at the hot water output terminal of the heating hot water output module interface, second temperature and second flow data at the hot water output terminal of the heating hot water output module interface, third temperature and third flow data at the hot water output terminal of the domestic hot water output module interface, fourth temperature and fourth flow data at the hot water input terminal of the domestic hot water output module interface, and the total heat of the multi-split air conditioning terminal. The specific implementation of this process includes the following steps:

[0155] Step a1: Determine the amount of waste heat recovered from the heating hot water based on the first temperature data, the second temperature data, the first flow rate data, and the second flow rate data.

[0156] Specifically, based on the temperature difference between the heating hot water output end and related nodes, combined with fluid flow rate and specific heat capacity, the quantitative value of waste heat recovery achieved by the heating hot water during the heat exchange process is derived through heat calculation formula. The waste heat recovery of the heating hot water branch is calculated separately, and the temperature and flow data of the branch are converted into concrete heat values. This provides accurate sub-item data support for the calculation of the total waste heat recovery, realizes the accurate quantification of the waste heat recovery of the heating hot water branch, avoids the impact of data deviation of a single branch on the calculation of the total recovery, and improves the reliability and accuracy of sub-item calculation.

[0157] Step a2: Determine the amount of waste heat recovered from domestic hot water based on the third temperature data, the fourth temperature data, the third flow rate data, and the fourth flow rate data.

[0158] Specifically, based on the temperature difference between the domestic hot water input and output terminals, and in conjunction with fluid flow rate and specific heat capacity parameters, a standardized heat calculation model is used to analyze and obtain the specific values ​​of waste heat recovery for the domestic hot water branch. By independently calculating the waste heat recovery of the domestic hot water branch, another component of the data required for the total waste heat recovery is supplemented, ensuring that the waste heat recovery of each output branch is effectively quantified. This guarantees the accuracy of the waste heat recovery calculation for the domestic hot water branch, improves the multi-branch component quantification system, lays the foundation for the comprehensive calculation of the total recovery, and reduces errors caused by missing component data.

[0159] Step a3: Determine the total amount of waste heat to be recovered based on the amount of waste heat recovered from heating hot water, the amount of waste heat recovered from domestic hot water, and the total heat of the multi-split air conditioning terminal.

[0160] Specifically, based on energy superposition, the quantified values ​​of waste heat recovery from the heating hot water and domestic hot water branches are integrated with the total heat of the multi-split air conditioning terminal for calculation. Following the law of conservation of energy, this ensures that the total recovered amount is the sum of the energy of each component, reflecting the overall scale of the system's recoverable waste heat. By integrating the heat data from each branch and related terminals, the dispersed quantified values ​​of each component are summarized into a unified total waste heat recovery amount. This provides a core quantitative basis for determining the total output heat of the subsequent system and prioritizing its allocation, achieving comprehensive and accurate calculation of the total waste heat to be recovered. This avoids omissions or duplicate calculations of component data, ensuring that the total quantified value is consistent with the actual recoverable waste heat scale of the system, and providing reliable data support for subsequent control decisions.

[0161] This invention achieves comprehensive quantification and precise control of the total waste heat to be recovered by accurately calculating the heating hot water and domestic hot water branches separately, combined with the integration and summarization of the total heat at the terminal of the multi-split air conditioner. This provides reliable data support for subsequent system energy output and distribution decisions, and improves the scientificity and rationality of waste heat recovery control.

[0162] This embodiment details the process described in the above embodiment of controlling the main waste heat recovery device to output the total heat from the waste heat recovery system through at least one of the heating hot water output module interface, the heating refrigerant output module interface, and the domestic hot water output module interface, based on a preset waste heat recovery supply priority rule and the total heat output of the waste heat recovery system. The specific implementation of this process includes the following steps:

[0163] Step b1: When the waste heat recovery main unit is detected to be operating in a mode where it mainly recovers waste heat to supply comfort air conditioning, and when the total heat output of the waste heat recovery system is less than or equal to the heat required by the comfort air conditioning terminal, the waste heat recovery main unit is controlled to output all the total heat output of the waste heat recovery main unit from the comfort air conditioning terminal through the heating hot water output module interface according to the preset recovery supply priority rule.

[0164] Specifically, based on preset waste heat supply priority rules, and with comfort air conditioning as the core energy supply target, the system compares the total heat output of the waste heat recovery system with the heat required by the comfort air conditioning terminals to trigger directional energy supply control logic. When waste heat resources are limited and comfort air conditioning is the priority scenario, all output heat is concentrated and supplied to the comfort air conditioning terminals, ensuring the energy needs of the core priority scenario are met and avoiding unmet core needs due to energy dispersion. This achieves precise energy supply to the core priority scenario, ensuring that the energy needs of the comfort air conditioning terminals are fully guaranteed, and improving the execution accuracy of priority control and the reliability of energy supply to core scenarios. When the total heat output of the waste heat recovery system is less than the heat required by the comfort air conditioning terminals, all heat is prioritized for supply to the comfort air conditioning terminals; if the heat is still insufficient, the system connects with external auxiliary heat sources (such as electric auxiliary heating modules) to supplement the heat difference, ensuring that the needs of the comfort air conditioning terminals are met.

[0165] Step b2: When it is detected that the total heat output of the waste heat recovery system is greater than the heat required by the comfort air conditioning terminal and less than the sum of the heat required by the domestic hot water, the comfort air conditioning terminal, and the multi-split air conditioning terminal, the total heat output of the waste heat recovery main device is controlled to be output from the comfort air conditioning terminal to meet the heat required by the comfort air conditioning terminal according to the preset recovery supply priority rule. Then, the remaining heat of the total heat output of the waste heat recovery main device is output from the domestic water supply and return pipe or the multi-split air conditioning terminal according to the preset priority.

[0166] Specifically, by prioritizing the energy needs of core priority scenarios (comfort air conditioning), and then redistributing the remaining heat according to preset secondary priority rules, when there is sufficient residual heat resources but they do not fully cover the needs of all scenarios, it ensures adequate energy supply for core scenarios while making reasonable use of residual heat through secondary priority allocation, avoiding energy idleness and waste. It achieves orderly energy supply for multiple scenarios and maximizes the utilization of residual heat resources, taking into account the adaptability of core and secondary needs, and improving the flexibility and economy of system energy allocation.

[0167] This invention, through priority-based hierarchical control centered on comfort air conditioning, combined with precise adaptation to different heat supply and demand scenarios, achieves targeted supply and efficient utilization of waste heat resources, balancing core scenario protection with multi-scenario adaptability, and improving the scientific nature and operational stability of system energy distribution.

[0168] Figure 12 This is a schematic diagram of the data center waste heat recovery control device provided in this application. Figure 12 As shown, the data center waste heat recovery control device 120 includes:

[0169] Module 1201 is used to acquire system load data from the data center side;

[0170] Analysis module 1202 is used to determine the total amount of waste heat to be recovered based on system load data;

[0171] The analysis module 1202 is also used to determine the total output heat of the waste heat recovery system based on the preset recovery coefficient and the total amount of waste heat to be recovered;

[0172] The control module 1203 is used to control the main waste heat recovery device to output the total heat of the waste heat recovery system through at least one of the heating hot water output module interface, the heating refrigerant output module interface, and the domestic hot water output module interface, according to the preset waste heat recovery supply priority rules and the total heat output of the waste heat recovery system.

[0173] In one possible design, the analysis module 1202 is specifically used for:

[0174] Based on system load data, the total amount of waste heat to be recovered is determined, including:

[0175] The amount of waste heat recovered from heating hot water is determined based on the first temperature data, the second temperature data, the first flow rate data, and the second flow rate data.

[0176] The amount of waste heat recovered from domestic hot water is determined based on the third temperature data, the fourth temperature data, the third flow rate data, and the fourth flow rate data.

[0177] The total amount of waste heat to be recovered is determined based on the amount of waste heat recovered from heating hot water, the amount of waste heat recovered from domestic hot water, and the total heat generated at the terminals of multi-split air conditioning units.

[0178] In one possible design, the analysis module 1202 is also used for:

[0179] When the main waste heat recovery unit is detected to be operating in a mode where it recovers waste heat to supply comfort air conditioning, if the total heat output of the waste heat recovery system is less than or equal to the heat required by the comfort air conditioning terminal, the main waste heat recovery unit will be controlled to output all the total heat output of the main waste heat recovery unit from the comfort air conditioning terminal through the heating hot water output module interface according to the preset recovery supply priority rules.

[0180] When the total heat output of the waste heat recovery system is detected to be greater than the heat required by the comfort air conditioning terminal and less than the sum of the heat required by the domestic hot water, the comfort air conditioning terminal, and the multi-split air conditioning terminal, the total heat output of the waste heat recovery main unit is controlled to be output from the comfort air conditioning terminal to meet the heat required by the comfort air conditioning terminal according to the preset recovery supply priority rule. Then, the remaining heat of the total heat output of the waste heat recovery main unit is output from the domestic water supply and return pipe or the multi-split air conditioning terminal according to the preset priority.

[0181] The data center waste heat recovery control device provided in this embodiment can be used to execute the above-mentioned data center waste heat recovery control method. Its implementation principle and technical effect are similar, and will not be described again in this embodiment.

[0182] Figure 13 A schematic diagram of the hardware structure of the electronic device provided in this application, such as... Figure 13 As shown, the electronic device 130 includes at least one processor 1301 and a memory 1302. Optionally, the electronic device 130 also includes a communication component 1303. The processor 1301, memory 1302, and communication component 1303 are connected via a bus 1304.

[0183] In the specific implementation process, at least one processor 1301 executes computer execution instructions stored in memory 1302, causing at least one processor 1301 to perform the above method.

[0184] The specific implementation process of processor 1301 can be found in the above method embodiments, and its implementation principle and technical effect are similar. It will not be repeated here.

[0185] In the above embodiments, it should be understood that the processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), etc. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in this invention can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules within the processor.

[0186] The memory may include random access memory (RAM) and may also include non-volatile memory (NVM), such as at least one disk storage device.

[0187] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of illustration, the buses shown in the accompanying drawings are not limited to a single bus or a single type of bus.

[0188] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the above-described method.

[0189] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the above-described method.

[0190] The aforementioned readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.

[0191] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in the device.

[0192] The division of units is merely a logical functional division; in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0193] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0194] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0195] If a function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0196] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0197] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A data center waste heat recovery system, comprising: The application relates to a waste heat recovery system and a control method thereof. The waste heat recovery system comprises a waste heat recovery main device, a waste heat recovery pipeline and a control device. The waste heat recovery main device is electrically connected with the control device, the input end of the waste heat recovery main device is communicated with the output end of the waste heat recovery pipeline, and the output end of the waste heat recovery main device comprises one or more of a heating hot water output module interface, a heating refrigerant output module interface and a domestic hot water output module interface. The input end of the waste heat recovery pipeline is communicated with the chilled water supply and return pipeline and / or the cooling water supply and return pipeline of a data center. The control device is used for acquiring system load data on the data center side, determining total waste heat recovery amount to be recovered according to the system load data, determining total waste heat recovery system output heat according to a preset recovery coefficient and the total waste heat recovery amount to be recovered, and controlling the waste heat recovery main device to output the total waste heat recovery system output heat through at least one of the heating hot water output module interface, the heating refrigerant output module interface and the domestic hot water output module interface according to a preset waste heat supply priority rule and the total waste heat recovery system output heat.

2. The system of claim 1, wherein, The waste heat recovery main device comprises a first electric valve, a second electric valve, a third electric valve, a fourth electric valve, a fifth electric valve, a sixth electric valve, a seventh electric valve, an eighth electric valve, a first expansion valve, a second expansion valve, a third expansion valve, a first water-fluorine heat exchanger, a second water-fluorine heat exchanger, a third water-fluorine heat exchanger, a fluorine-fluorine heat exchanger, a first pipeline valve module, a valve water pump module, a second pipeline valve module, a compressor and a four-way valve. The first electric valve and the first expansion valve are connected in parallel and are connected in series with the first water-fluorine heat exchanger, the first pipeline valve module and the fourth electric valve to form a first branch. The second electric valve and the second expansion valve are connected in parallel and are connected with the fluorine-fluorine heat exchanger, the valve water pump module and the fifth electric valve to form a second branch. The second water-fluorine heat exchanger and the seventh electric valve form a third branch. The third electric valve and the third expansion valve are connected in parallel and are connected with the third water-fluorine heat exchanger and the second pipeline valve module to form a fourth branch. The ports on the same side of the first branch, the second branch, the third branch and the fourth branch are communicated with each other, the first branch and the second branch are communicated with the first port of the four-way valve at the ports on the other same side, the other side port of the fourth branch is connected in series with the eighth electric valve and is connected in parallel with the third branch and is communicated to the first port of the four-way valve through the sixth electric valve, the other side port of the fourth branch is also communicated with the second port of the four-way valve, and the two ends of the compressor are respectively communicated with the third port and the fourth port of the four-way valve. The first electric valve, the second electric valve, the third electric valve, the fourth electric valve, the fifth electric valve, the sixth electric valve, the seventh electric valve, the eighth electric valve, the first water-fluoride heat exchanger, the second water-fluoride heat exchanger, the third water-fluoride heat exchanger, the fluoride heat exchanger, the first pipeline valve module, the valve pump module, the second pipeline valve module, the compressor, and the four-way valve are all electrically connected to the control device.

3. The system of claim 2, wherein, The first pipeline valve module includes: a ninth electric valve for water pipes, a tenth electric valve for water pipes, an eleventh electric valve for water pipes, and a twelfth electric valve for water pipes; The ninth electric valve of the water pipe is installed on the inlet pipe of the first water-fluoride heat exchanger, the tenth electric valve of the water pipe is installed on the return pipe of the first water-fluoride heat exchanger, one end of the eleventh electric valve of the water pipe is connected to the liquid inlet end of the tenth electric valve of the water pipe, the other end of the eleventh electric valve of the water pipe is connected to the liquid inlet end of the ninth electric valve of the water pipe, one end of the twelfth electric valve of the water pipe is connected to the liquid outlet end of the ninth electric valve of the water pipe, and the other end of the twelfth electric valve of the water pipe is connected to the liquid discharge end of the tenth electric valve of the water pipe. The second pipeline valve module has the same composition and connection structure as the first pipeline valve module, the difference being that the second pipeline valve module is connected to the third water-fluoride heat exchanger.

4. The system of claim 2, wherein, The valve and pump module includes: a ninth electric valve for the refrigerant pipe, a tenth electric valve for the refrigerant pipe, an eleventh electric valve for the refrigerant pipe, a twelfth electric valve for the refrigerant pipe, and a refrigerant circulation pump. The ninth electric valve for the refrigerant pipe is installed on the refrigerant inlet pipe of the fluoropolymer heat exchanger, and the tenth electric valve for the refrigerant pipe is installed on the refrigerant return pipe of the fluoropolymer heat exchanger. One end of the eleventh electric valve for the refrigerant pipe is connected to the liquid inlet end of the eleventh electric valve for the refrigerant pipe, and the other end of the eleventh electric valve for the refrigerant pipe is connected to the liquid inlet end of the ninth electric valve for the refrigerant pipe. One end of the twelfth electric valve for the refrigerant pipe is connected to the liquid outlet end of the ninth electric valve for the refrigerant pipe, and the other end of the twelfth electric valve for the refrigerant pipe is connected to the liquid outlet end of the tenth electric valve for the refrigerant pipe. The refrigerant circulation pump has its inlet end connected to the refrigerant pipeline inlet end of the fluoropolymer heat exchanger, and its outlet end connected to the inlet end of the ninth electric valve of the refrigeration pipe.

5. A data center waste heat recovery control method, characterized by, The control device applied to the data center waste heat recovery system as described in claim 1, wherein the method includes: Obtain system load data from the data center side; Based on the system load data, determine the total amount of waste heat to be recovered; The total output heat of the waste heat recovery system is determined based on the preset recovery coefficient and the total amount of waste heat to be recovered. According to the preset priority rules for waste heat recovery supply and the total heat output of the waste heat recovery system, the main waste heat recovery device is controlled to output the total heat of the waste heat recovery system through at least one of the heating hot water output module interface, the heating refrigerant output module interface, and the domestic hot water output module interface.

6. The method of claim 5, wherein, The system load data includes: first temperature data and first flow data of the hot water output terminal of the heating hot water output module interface, second temperature data and second flow data of the hot water output terminal of the heating hot water output module interface, third temperature data and third flow data of the hot water output terminal of the domestic hot water output module interface, fourth temperature data and fourth flow data of the hot water input terminal of the domestic hot water output module interface, and total heat of the multi-split air conditioning terminal. The step of determining the total amount of waste heat to be recovered based on the system load data includes: The amount of waste heat recovered from heating hot water is determined based on the first temperature data, the second temperature data, the first flow rate data, and the second flow rate data. The amount of waste heat recovered from domestic hot water is determined based on the third temperature data, the fourth temperature data, the third flow rate data, and the fourth flow rate data. The total amount of waste heat to be recovered is determined based on the amount of waste heat recovered from heating hot water, the amount of waste heat recovered from domestic hot water, and the total heat output of the multi-split air conditioning unit.

7. The method of claim 5, wherein, The step of controlling the main waste heat recovery device to output the total heat from the waste heat recovery system through at least one of the heating hot water output module interface, the heating refrigerant output module interface, and the domestic hot water output module interface, according to the preset waste heat recovery supply priority rules and the total heat output of the waste heat recovery system, includes: When the main waste heat recovery device is detected to be operating in a mode where it primarily recovers waste heat to supply comfort air conditioning, and when the total heat output of the waste heat recovery system is less than or equal to the heat required by the comfort air conditioning terminal, the main waste heat recovery device is controlled to output all of its total heat output from the comfort air conditioning terminal through the heating hot water output module interface, according to a preset recovery supply priority rule. When it is detected that the total heat output of the waste heat recovery system is greater than the heat required by the comfort air conditioning terminal and less than the sum of the heat required by the domestic hot water, the comfort air conditioning terminal, and the multi-split air conditioning terminal, the total heat output of the waste heat recovery main device is controlled to be output from the comfort air conditioning terminal to meet the heat required by the comfort air conditioning terminal according to the preset recovery supply priority rule. Then, the remaining heat of the total heat output of the waste heat recovery main device is output from the domestic water supply and return pipe or the multi-split air conditioning terminal according to the preset priority.

8. An electronic device, comprising: include: Memory, processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory, causing the processor to perform the method as described in any one of claims 5 to 7.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the method as described in any one of claims 5 to 7.

10. A computer program product, characterised in that, Includes a computer program that, when executed by a processor, implements the method of any one of claims 5 to 7.

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