Heat pipe multi-connected ventilation wall machine room heat dissipation system for solar energy storage and waste heat recovery

Abstract

The utility model discloses a heat pipe multi-connected ventilation wall machine room heat dissipation system for solar energy storage and waste heat recovery, which is suitable for efficient heat dissipation and energy optimization utilization of a machine room and comprises a heat pipe air conditioner all-in-one machine, a heat pipe ventilation wall, a solar energy storage power supply unit and the like. The heat pipe air conditioner all-in-one machine is provided with a heat pipe refrigeration mode, a compressor refrigeration mode and a heat pipe refrigeration and compressor refrigeration mixed working mode. The heat pipe air conditioner all-in-one machine and the heat pipe ventilation wall are led into the mains supply or the solar energy storage power supply unit through the power distribution cabinet to supply power, and meanwhile the solar energy storage system is preferentially adopted for power supply to assist in mains supply. In addition, the compressor refrigeration module is not provided with an air-cooled condenser, a waste heat recovery heat exchanger is used for recovering and compressing waste heat during compression refrigeration, and meanwhile it is guaranteed that the heat pipe condenser is small in heat dissipation wind resistance and low in power consumption. The utility model has the advantages of compact structure, obvious energy-saving effect, flexible operation mode, high clean energy utilization rate and the like.

Description

Technical Field

[0001] This utility model belongs to the field of server room heat dissipation, and relates to heat pipe multi-fan wall-type server room heat dissipation, waste heat recovery and new energy power supply coupling technology. In particular, it relates to a solar energy storage and waste heat recovery heat pipe multi-fan wall-type server room heat dissipation system, which can realize multi-mode efficient heat dissipation of server rooms, effective utilization of waste heat and priority utilization of clean energy, reduce the energy consumption of server room operation and improve energy utilization efficiency. Background Technology

[0002] During server room operation, the continuous heat load generated by the equipment must be dissipated in a timely manner through an efficient and stable cooling system to ensure the long-term continuous and stable operation of information equipment. With the increasing integration of servers, cooling technology is evolving from simple compressor refrigeration to more diverse structures and energy-intensive technologies. Among the many new cooling structures, heat pipe walls are gaining attention and being used to some extent due to their advantages such as high-efficiency heat exchange, modular structure, and suitability for terminal placement in server rooms.

[0003] Heat pipe wall cooling systems, which use heat pipes as the core heat exchange component, have their heat pipe evaporators positioned near the heat source in the computer room. The evaporator end of the heat pipe rapidly absorbs the heat emitted by the servers by vaporizing the refrigerant. The hot air is then conducted through the heat pipes to the condenser end, where it is released and condensed using methods such as air cooling, achieving long-distance heat transfer and dissipation. Compared to traditional compressor-driven refrigeration systems, heat pipe wall cooling systems do not require a compressor during operation, offering advantages such as simple structure, low power consumption, and fast response. However, existing heat pipe wall cooling systems still have the following shortcomings: First, most systems operate independently and are not effectively coupled with the central air conditioning system, making it difficult to achieve coordinated switching between multiple cooling modes; second, they rely on natural cold sources, limiting their applicability and preventing long-term independent operation in high-temperature environments.

[0004] Besides the terminal heat dissipation structure, the underutilization of high-quality waste heat generated by existing computer room compressor cooling systems is also a long-standing problem. The condensation heat generated by the compressor is usually directly discharged into the environment by air cooling or water cooling, without forming an effective energy recovery and reuse path. Although some high-efficiency buildings have introduced heat recovery heat exchangers, these devices generally face problems such as high cost, complex control, and strong system independence, making it difficult to achieve structural integration with computer room cooling equipment. In terms of energy supply, most server room air conditioning systems are still mainly powered by the mains electricity. Although some systems support connection to backup power, due to limitations such as power generation fluctuations, the complexity of load allocation, and insufficient supporting energy storage systems, the existing clean energy power supply mode is mostly auxiliary, and a stable power supply solution with high adaptability, high priority, and low interference for air conditioning systems has not yet been formed.

[0005] In summary, existing high-density server rooms generally suffer from problems such as complex structural layout, high operating energy consumption, insufficient utilization of natural cooling sources, low adaptability to clean energy, and inadequate waste heat recovery capabilities in their heat dissipation systems. To further reduce air conditioning power consumption and expand the application of heat pipe air conditioning in server room heat dissipation, it is crucial to develop more heat pipe cooling terminal types and outdoor heat pipe cooling source products without increasing system complexity, and to further utilize natural energy for power supply and achieve efficient waste heat recovery. These are pressing technical challenges in the field of heat dissipation and energy management for high-density server rooms. Summary of the Invention

[0006] (a) Technical issues

[0007] To address at least one of the aforementioned shortcomings and deficiencies in existing technologies, this utility model aims to provide a solar energy storage and waste heat recovery heat pipe multi-unit fan wall system for computer room heat dissipation. The compressor refrigeration system has no air-cooled condenser; in compressor refrigeration mode, a waste heat recovery heat exchanger is used to recover waste heat. During heat pipe refrigeration mode operation, because the compressor refrigeration system has no air-cooled condenser obstruction, the heat pipe condenser has low heat dissipation resistance and low power consumption. The system utilizes a heat pipe air conditioning unit integrated with a heat pipe fan wall system, which can fully utilize natural cold sources. The heat pipe fan wall can be installed in various ways, such as between the air conditioning room and the computer room wall, at the end of a row of computer room cabinets, or opposite to the exhaust of the row of cabinets, resulting in low system energy consumption. The heat pipe air conditioning unit and the heat pipe fan wall are primarily powered by a solar energy storage power supply unit, and secondarily by mains power, further maximizing the use of natural energy.

[0008] (II) Technical Solution

[0009] The technical solution adopted by this utility model to solve its technical problem is:

[0010] A solar energy storage and waste heat recovery heat pipe multi-unit fan wall computer room cooling system, used for heat dissipation and waste heat recovery and solar energy storage power supply in high-density computer rooms, comprising:

[0011] Heat pipe air wall, set up in the computer room and adjacent to the server rack, includes multiple parallel heat pipe evaporation terminals and terminal fans that work with them to absorb heat from the computer room;

[0012] The integrated heat pipe air conditioner includes a heat pipe condenser, a compressor refrigeration module formed by the cold side of a refrigerant heat exchanger, an expansion valve, the hot side of a waste heat recovery heat exchanger, and a compressor connected sequentially via pipelines, as well as an inlet refrigerant three-way valve and an outlet refrigerant three-way valve, wherein:

[0013] The inlet of the refrigerant inlet three-way valve is connected to the outlet of the heat pipe air wall, the first outlet is connected to the inlet of the heat pipe condenser, and the second outlet is connected to the hot side inlet of the refrigerant heat exchanger.

[0014] The first inlet of the refrigerant outlet three-way valve is connected to the outlet of the heat pipe condenser, the second inlet is connected to the hot side outlet of the refrigerant heat exchanger, and the outlet is connected to the inlet of the heat pipe air wall.

[0015] The cold side of the waste heat recovery heat exchanger is connected to the heat user via a pipeline.

[0016] The solar energy storage power supply unit includes photovoltaic modules, combiner boxes, inverters, storage batteries, and distribution cabinets. The output terminals of the photovoltaic modules are sequentially connected to the combiner boxes, inverters, and storage batteries, and are electrically connected to the distribution cabinets. The distribution cabinets are also connected to the mains power grid. The heat pipe air conditioning unit and the heat pipe air wall are supplied with either mains power or solar power through the distribution cabinets, with priority given to solar power and supplemented by mains power.

[0017] Preferably, the heat pipe fan wall further includes a fan wall frame, an indoor unit controller, and temperature and pressure sensors installed at the inlet and outlet of the heat pipe fan wall. Multiple heat pipe evaporation terminals are arranged in an array in the fan wall frame. The indoor unit controller adjusts the start, stop, and speed of each terminal fan according to the sensor data to achieve dynamic response to the heat dissipation needs of different cabinets.

[0018] Preferably, the heat pipe air wall adopts a modular design, and its installation method is at least one of the following: placed between the air conditioning room and the computer room wall, at the end of the computer room row of cabinets, or opposite to the exhaust of the row of cabinets; and the heat pipe air conditioning unit adopts a multi-connection method, with one heat pipe air conditioning unit supporting multiple heat pipe air walls, thereby reducing the overall energy consumption of the system.

[0019] Preferably, the heat pipe air conditioner also includes a sheet metal frame, a condenser fan, an outdoor unit controller, and temperature and pressure sensors. The sheet metal frame is used to fix and support the various components of the integrated unit. The condenser fan is arranged near the heat dissipation side of the heat pipe condenser. The temperature and pressure sensors are installed at key nodes of the refrigerant gas pipe, refrigerant liquid pipe, and compressor refrigeration circuit to collect outdoor temperature and refrigerant pipeline pressure information in real time. The outdoor unit controller adjusts the speed of the condenser fan and the operating mode of the heat pipe air conditioner in real time according to the sensor data, thereby automating the energy saving and thermal management strategies.

[0020] Preferably, a liquid receiver and a refrigerant pump are installed in parallel on the connecting pipeline between the refrigerant three-way valve outlet and the heat pipe wall inlet. The liquid receiver is used to buffer the flow fluctuations during the refrigerant phase change process, and the refrigerant pump accelerates the refrigerant flow when power is required.

[0021] Preferably, the integrated heat pipe air conditioner includes a heat pipe cooling mode, a compressor cooling mode, and a hybrid mode of heat pipe cooling and compressor cooling. The system selects the optimal cooling mode according to the season, outdoor temperature conditions, and / or the real-time heat load of the computer room. The refrigerant flow direction is switched and controlled between the three modes by the opening and closing states of the inlet and outlet refrigerant three-way valves.

[0022] Furthermore, when there is sufficient natural cold source, the heat pipe cooling mode is operated: the compressor cooling module is turned off, the inlet three-way valve is switched to connect its inlet only to its first outlet, and the outlet three-way valve is switched to connect its outlet only to its first inlet. The refrigerant vapor in the heat pipe air wall enters the heat pipe condenser through the inlet three-way valve, condenses into liquid, and then flows back to the heat pipe air wall through the outlet three-way valve to absorb heat and evaporate again, thereby transferring heat out of the machine room.

[0023] Furthermore, when only a portion of the natural cold source can be utilized, a hybrid operation mode of heat pipe refrigeration and compressor refrigeration is implemented: the compressor refrigeration module is started, the inlet refrigerant three-way valve is switched to its inlet and simultaneously connected to its first and second outlets, and the outlet refrigerant three-way valve is switched to its outlet and simultaneously connected to its first and second inlets. The refrigerant vapor in the heat pipe air wall enters the hot side of the heat pipe condenser and the refrigerant heat exchanger through the inlet refrigerant three-way valve, respectively. After condensing into liquid, it flows back to the heat pipe air wall through the outlet refrigerant three-way valve to absorb heat and evaporate again, thereby transferring heat out of the machine room. At this time, in the compressor refrigeration module, the refrigerant on the hot side of the waste heat recovery heat exchanger exchanges heat with the user water on its cold side. After the user water absorbs heat and its temperature rises, it is delivered to the heat user, realizing waste heat recovery.

[0024] Furthermore, when natural cold sources cannot be utilized, the compressor refrigeration mode is activated: the compressor refrigeration module is started, and the inlet refrigerant three-way valve is switched so that its inlet is connected only to its second outlet, and the outlet refrigerant three-way valve is switched so that its outlet is connected only to its second inlet. The refrigerant vapor in the heat pipe air wall enters the hot side of the refrigerant heat exchanger through the inlet refrigerant three-way valve, condenses into liquid, and then flows back to the heat pipe air wall through the outlet refrigerant three-way valve to absorb heat and evaporate again, thereby transferring heat out of the machine room. At this time, in the compressor refrigeration module, the refrigerant in the hot side of the waste heat recovery heat exchanger exchanges heat with the user water in its cold side. After the user water absorbs heat and its temperature rises, it is delivered to the heat user, realizing waste heat recovery.

[0025] Preferably, in the solar energy storage power supply unit, the photovoltaic module is one or more of a combination of monocrystalline silicon photovoltaic module, polycrystalline silicon photovoltaic module, thin film photovoltaic module or perovskite photovoltaic module; the storage battery is one or more of a combination of lithium-ion battery, lead-acid battery, flow battery or supercapacitor; and the inverter is one of a centralized inverter, string inverter or micro inverter.

[0026] Preferably, the solar energy storage power supply unit also includes a monitoring module for real-time monitoring of the working status of photovoltaic modules, combiner boxes, inverters and storage batteries, collecting the voltage, current, power, power generation of photovoltaic modules and the state of charge parameters of storage batteries, and adjusting the power supply strategy of the distribution cabinet according to the solar power generation status and system power demand.

[0027] (III) Technical Effects

[0028] Compared with existing technologies, the technical effects of the solar energy storage and waste heat recovery heat pipe multi-fan wall computer room heat dissipation system provided by this utility model are as follows:

[0029] (1) The heat pipe multi-unit air wall heat dissipation system of the present invention for solar energy storage and waste heat recovery adopts a structural design of heat pipe air conditioning unit with heat pipe air wall that can make full use of natural cold source. The heat pipe air wall can be installed in various ways, such as between the air conditioning room and the computer room wall, at the end of the computer room cabinet, or opposite to the exhaust of the cabinet. The system has low energy consumption.

[0030] (2) The solar energy storage and waste heat recovery heat pipe multi-fan wall heat dissipation system of this utility model has no air-cooled condenser in the compressor refrigeration system. In the compressor refrigeration mode, the waste heat recovery heat exchanger is used to recover waste heat, realize the recovery and reuse of high-temperature condensation heat in the compressor refrigeration process, and effectively improve the energy utilization efficiency of the system. When the heat pipe refrigeration mode is running, since the compressor refrigeration system has no air-cooled condenser to block it, the heat pipe condenser has low heat dissipation resistance and low power consumption.

[0031] (3) The solar energy storage and waste heat recovery heat pipe multi-fan cooling system of this utility model supports a dual-path power supply mechanism of direct photovoltaic power generation and energy storage battery discharge. The heat pipe air conditioning unit and heat pipe fan wall are powered by solar energy storage unit first, and then by mains power. This power supply method makes full use of clean and renewable solar energy, reduces the carbon emissions of data centers, and effectively solves the intermittent problem of solar power generation through the battery, ensuring the stable operation of the computer room cooling system. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the heat pipe multi-fan wall heat dissipation system for solar energy storage and waste heat recovery of the present invention.

[0033] Figure 2 This is a schematic diagram of the heat pipe cooling mode in operation only.

[0034] Figure 3 This is a schematic diagram of the mixed operation mode of heat pipe cooling and compressor cooling.

[0035] Figure 4 This is a schematic diagram of the compressor-only cooling mode.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1-Heat pipe air conditioning unit, 1-1 Sheet metal frame, 1-2 Heat pipe condenser, 1-3 Waste heat recovery heat exchanger, 1-4 Expansion valve, 1-5 Refrigerant heat exchanger, 1-6 Compressor, 1-7 Condenser fan, 1-8 Outdoor unit controller, 1-9 Refrigerant inlet three-way valve, 1-10 Refrigerant outlet three-way valve, 1-11 Liquid receiver, 1-12 Refrigerant pump, 2-Heat pipe air wall, 2-1 Air wall frame, 2-2 Heat pipe evaporator terminal, 2-3 Terminal fan, 2-4 Indoor unit controller, 3-Solar energy storage power supply unit, 3-1 Photovoltaic module, 3-2 Combiner box, 3-3 Inverter, 3-4 Storage battery, 4-Distribution cabinet, 5-Refrigerant gas pipe, 6-Refrigerant liquid pipe. Detailed Implementation

[0038] This utility model aims to provide a solar energy storage and waste heat recovery heat pipe multi-unit fan wall system for computer room heat dissipation. To better understand this utility model, the following embodiments further illustrate its content, so that the advantages and features of this utility model can be more easily understood by those skilled in the art. It should be noted that the following description is only a preferred embodiment of this utility model, but the content of this utility model is not limited to the following embodiments.

[0039] Figure 1 This is a schematic diagram of the structure of the solar energy storage and waste heat recovery heat pipe multi-unit air-wall computer room cooling system of this utility model. The solar energy storage and waste heat recovery heat pipe multi-unit air-wall computer room cooling system of this utility model includes a heat pipe air conditioning unit 1, a heat pipe air wall 2, a solar energy storage power supply unit 3, a power distribution cabinet 4, etc., wherein:

[0040] The integrated heat pipe air conditioner 1 includes a sheet metal frame 1-1 and, installed within the sheet metal frame 1-1, a heat pipe condenser 1-2, a waste heat recovery heat exchanger 1-3, an expansion valve 1-4, a refrigerant heat exchanger 1-5, a compressor 1-6, a condenser fan 1-7, an outdoor unit controller 1-8, a refrigerant inlet three-way valve 1-9, and a refrigerant outlet three-way valve 1-10. The refrigerant heat exchanger 1-5 includes a hot side and a cold side; the waste heat recovery heat exchanger 1-3 also includes a hot side and a cold side; the hot side of the waste heat recovery heat exchanger 1-3, the expansion valve 1-4, the cold side of the refrigerant heat exchanger 1-5, and the compressor 1-6 constitute a compressor refrigeration module; the refrigerant inlet three-way valve 1-9 includes an inlet, a first outlet, and a second outlet; the inlet of the refrigerant inlet three-way valve 1-9 is connected to the outlet of the heat pipe air wall 2 via a refrigerant gas pipe 5; the first outlet of the refrigerant inlet three-way valve 1-9 is connected to the heat pipe condenser 1-2 via a pipeline. The inlet is connected; the second outlet of the refrigerant inlet three-way valve 1-9 is connected to the hot side inlet of the refrigerant heat exchanger 1-5 via a pipeline; the refrigerant outlet three-way valve 1-10 includes a first inlet, a second inlet, and an outlet; the first inlet of the refrigerant outlet three-way valve 1-10 is connected to the outlet of the heat pipe condenser 1-2 via a pipeline; the second inlet of the refrigerant outlet three-way valve 1-10 is connected to the hot side outlet of the refrigerant heat exchanger 1-5 via a pipeline; the outlet of the refrigerant outlet three-way valve 1-10 is connected to the inlet of the heat pipe air wall 2 via the refrigerant liquid pipe 6.

[0041] The heat pipe air wall 2 includes an air wall frame 2-1 and heat pipe evaporator terminals 2-2, terminal fans 2-3, indoor unit controllers 2-4, etc., installed in the air wall frame 2-1; the solar energy storage power supply unit 3 includes photovoltaic modules 3-1, combiner boxes 3-2, inverters 3-3, and storage batteries 3-4; the photovoltaic modules 3-1 capture sunlight and generate direct current, the combiner boxes 3-2 collect the direct current generated by the photovoltaic modules 3-1 and ensure safe transmission, the inverters 3-3 convert the direct current collected and transmitted by the combiner boxes 3-2 into alternating current and can output stable alternating current to the distribution cabinet 4, the storage batteries 3-4 can store the electrical energy converted by the inverters 3-3 but not used immediately, and release the stored electrical energy to supply the distribution cabinet 4 when the photovoltaic modules 3-1 cannot collect solar energy at night or on cloudy or rainy days, resulting in insufficient power generation; the heat pipe air conditioning unit 1 and the heat pipe air wall 2 are supplied with mains power or solar energy storage power supply unit 3 through the distribution cabinet 4.

[0042] As a preferred option, the heat pipe air conditioning unit 1 is equipped with a heat pipe cooling mode, a compressor cooling mode, and a mixed working mode of heat pipe cooling and compressor cooling. The system selects the optimal cooling mode according to the season, outdoor temperature conditions, and / or the real-time heat load of the computer room. The refrigerant flow direction is switched and controlled between the three modes by the opening and closing of the inlet and outlet refrigerant three-way valves.

[0043] As a preferred option, the heat pipe air conditioning unit 1 adopts a multi-unit configuration, with one heat pipe air conditioning unit 1 supporting multiple heat pipe air walls 2, resulting in low system energy consumption. The heat pipe air wall 2 adopts a modular design, and its installation method is at least one of the following: placed between the air conditioning room and the computer room wall, at the end of the computer room cabinet, or opposite to the exhaust of the cabinet.

[0044] In this embodiment, the compressor refrigeration system has no air-cooled condenser, and only uses waste heat recovery heat exchangers 1-3 to recover waste heat. When the heat pipe refrigeration mode is running, since the compressor refrigeration system has no air-cooled condenser to block it, the heat pipe condenser 1-2 has low heat dissipation resistance and low power consumption. The heat pipe air conditioner 1 and the heat pipe air wall 2 are powered by mains power or solar energy storage power supply unit 3 through the power distribution cabinet 4. The solar energy storage power supply unit 3 is preferred, followed by mains power, to further make full use of natural energy.

[0045] In this embodiment, a liquid pipeline, a liquid storage tank 1-11, and a refrigerant pump 1-12 are installed in parallel between the outlet of the refrigerant three-way valve 1-10 and the refrigerant liquid pipe 6. The liquid storage tank 1-11 and the refrigerant pump 1-12 are suitable for situations where power drive is required. The liquid storage tank 1-11 is used to buffer the flow fluctuations during the refrigerant phase change process, and the refrigerant pump 1-12 accelerates the refrigerant flow when power drive is required.

[0046] This embodiment also includes monitoring components such as temperature sensors and pressure sensors. The temperature and pressure sensors in the heat pipe air conditioning unit are installed at key nodes in the refrigerant gas pipe, refrigerant liquid pipe, and compressor refrigeration circuit to collect real-time outdoor temperature and refrigerant pipeline pressure information. The outdoor unit controllers 1-8 can adjust the operating mode and status of the heat pipe air conditioning unit 1 and the operating status of the condenser fans 1-7 based on the monitoring data and upload the data to the upper-level monitoring system. Temperature and pressure sensors are also installed at the inlet and outlet of the heat pipe air wall 2. The indoor unit controllers 2-4 can adjust the operating status of the heat pipe air wall 2 and the terminal fans 2-3 based on the monitoring data and upload the data to the upper-level monitoring system, achieving dynamic response to the heat dissipation needs of different cabinets.

[0047] In this embodiment, the photovoltaic modules in the solar energy storage power supply unit 3 are monocrystalline silicon photovoltaic modules, polycrystalline silicon photovoltaic modules, thin-film photovoltaic modules, or perovskite photovoltaic modules; the storage batteries are lithium-ion batteries, lead-acid batteries, flow batteries, or supercapacitors; and the inverters are centralized inverters, string inverters, or microinverters. The solar energy storage power supply unit 3 also includes a monitoring module for real-time monitoring of the operating status of the photovoltaic modules, combiner box, inverter, and storage batteries, collecting the voltage, current, power, and power generation of the photovoltaic modules, as well as the state of charge parameters of the storage batteries, and adjusting the power supply strategy of the distribution cabinet according to the solar power generation status and system power demand.

[0048] Figure 2 This is a schematic diagram of the heat pipe multi-fan wall cooling system of this utility model, which is used for solar energy storage and waste heat recovery, when operating only in heat pipe cooling mode. As shown in the figure, when there is sufficient natural cold source in winter, the heat pipe cooling mode is operated. At this time, the compressor cooling module is turned off, and the inlet three-way valve 1-9 is switched so that its inlet is connected only to its first outlet, and the outlet three-way valve 1-10 is switched so that its outlet is connected only to its first inlet. The refrigerant vapor from the heat pipe air wall 2 enters the heat pipe condenser 1-2 through the refrigerant gas pipe 5, the inlet of the refrigerant three-way valve 1-9, and the first outlet, and condenses into refrigerant liquid. The refrigerant liquid flows back to the heat pipe air wall 2 through the first inlet and outlet of the outlet three-way valve 1-10 and the refrigerant liquid pipe 6 to absorb heat and evaporate again, thereby transferring heat out of the machine room. The refrigerant flow direction in the system consisting of the heat pipe air wall 2, the refrigerant gas pipe 5, the inlet three-way valve 1-9, the heat pipe condenser 1-2, the outlet three-way valve 1-10, and the refrigerant liquid pipe 6 is shown by arrow A in the figure. The air flow in the heat pipe air conditioning unit 1 is shown by arrow B in the figure.

[0049] Figure 3 This diagram illustrates the operation of the heat pipe multi-unit air wall cooling system for solar energy storage and waste heat recovery in a hybrid heat pipe cooling and compressor cooling mode. As shown, during transitional seasons when natural cooling sources can be partially utilized, the system operates in a hybrid heat pipe cooling and compressor cooling mode. In this mode, the compressor cooling module is activated, and the inlet refrigerant three-way valve 1-9 is switched to its inlet position while simultaneously connecting to its first and second outlets. The outlet refrigerant three-way valve 1-10 is switched to its outlet position while simultaneously connecting to its first and second inlets. Refrigerant vapor from the heat pipe air wall 2 enters the heat pipe condenser 1-2 and the hot side of the refrigerant heat exchanger 1-5 through the refrigerant gas pipe 5, the inlet of the refrigerant three-way valve 1-9, the first outlet, and the second outlet, respectively, condensing into refrigerant liquid. The refrigerant liquid then flows back to the heat pipe air wall 2 through the first inlet, second inlet, and outlet of the outlet refrigerant three-way valve 1-10 and the refrigerant liquid pipe 6, absorbing heat and evaporating again, thereby transferring heat out of the machine room.

[0050] At this point, in the compressor refrigeration module consisting of the hot side of waste heat recovery heat exchanger 1-3, expansion valve 1-4, cold side of refrigerant heat exchanger 1-5, and compressor 1-6, the refrigerant absorbs heat from the hot side of refrigerant heat exchanger 1-5 in the cold side and evaporates before sequentially entering compressor 1-6 and the hot side of waste heat recovery heat exchanger 1-3. In the hot side of waste heat recovery heat exchanger 1-3, the refrigerant exchanges heat with water in the cold side of waste heat recovery heat exchanger 1-3, condenses into liquid refrigerant, and then flows back to expansion valve 1-4 and the refrigerant heat exchanger. The cold side of heat exchanger 1-5 undergoes another heat exchange cycle; the water in the cold side of waste heat recovery heat exchanger 1-3 absorbs heat from the hot side of waste heat recovery heat exchanger 1-3, resulting in a temperature increase and waste heat recovery; the refrigerant flow direction in the system consisting of heat pipe air wall 2, refrigerant gas pipe 5, refrigerant inlet three-way valve 1-9, heat pipe condenser 1-2, refrigerant heat exchanger 1-5, refrigerant outlet three-way valve 1-10, and refrigerant liquid pipe 6 is shown by arrow C in the figure; the air flow in the heat pipe air conditioning unit 1 is shown by arrow B in the figure. The refrigerant flow direction in the compressor refrigeration system consisting of the hot side of waste heat recovery heat exchanger 1-3, expansion valve 1-4, cold side of refrigerant heat exchanger 1-5, and compressor 1-6 is shown by arrow D in the figure; the water flow direction in the cold side of waste heat recovery heat exchanger 1-3 is shown by arrow E in the figure.

[0051] Figure 4 This diagram illustrates the solar energy storage and waste heat recovery heat pipe multi-fan wall system for computer room cooling when operating only in compressor cooling mode. As shown, when natural cooling sources cannot be utilized in summer, the compressor cooling mode is activated. The compressor cooling module is started, and the inlet three-way valve 1-9 is switched so that its inlet is connected only to its second outlet. The outlet three-way valve 1-10 is switched so that its outlet is connected only to its second inlet. Refrigerant vapor from the heat pipe fan wall 2 enters the hot side of the refrigerant heat exchanger 1-5 through the refrigerant gas pipe 5, the inlet of the refrigerant three-way valve 1-9, and the second outlet, condensing into refrigerant liquid. The refrigerant liquid flows back to the heat pipe fan wall 2 through the second inlet and outlet of the outlet three-way valve 1-10 and the refrigerant liquid pipe 6, absorbing heat and evaporating again, thus transferring heat out of the computer room.

[0052] At this point, in the compressor refrigeration module consisting of the hot side of waste heat recovery heat exchanger 1-3, expansion valve 1-4, cold side of refrigerant heat exchanger 1-5, and compressor 1-6, the refrigerant absorbs heat from the hot side of refrigerant heat exchanger 1-5 and evaporates, then sequentially enters compressor 1-6 and the hot side of waste heat recovery heat exchanger 1-3. In the hot side of waste heat recovery heat exchanger 1-3, the refrigerant exchanges heat with water in the cold side of waste heat recovery heat exchanger 1-3, condenses into liquid refrigerant, and then flows back to expansion valve 1-4 and the cold side of refrigerant heat exchanger 1-5 for another heat exchange cycle. The water in the cold side of waste heat recovery heat exchanger 1-3 absorbs heat from the waste heat recovery heat exchanger... The temperature rises after the heat is absorbed in the hot side of unit 1-3, achieving waste heat recovery. The refrigerant flow direction in the system consisting of heat pipe wall 2, refrigerant gas pipe 5, refrigerant inlet three-way valve 1-9, refrigerant heat exchanger 1-5, refrigerant outlet three-way valve 1-10, and refrigerant liquid pipe 6 is shown by arrow F in the figure. The air flow in the heat pipe air conditioning unit 1 is shown by arrow B in the figure. The refrigerant flow direction in the compressor refrigeration system consisting of the hot side of waste heat recovery heat exchanger 1-3, expansion valve 1-4, cold side of refrigerant heat exchanger 1-5, and compressor 1-6 is shown by arrow D in the figure. The water flow direction in the cold side of waste heat recovery heat exchanger 1-3 is shown by arrow E in the figure.

[0053] The objectives of this utility model are fully and effectively achieved through the above embodiments. All equivalent or simple variations made to the structure, features, and principles described in this utility model patent concept are included within the protection scope of this utility model patent. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in these claims, all of which should fall within the protection scope of this utility model.

Claims

1. A solar energy storage and waste heat recovery heat pipe multi-connected wind wall machine room cooling system, characterized in that, The application relates to a heat-pipe air-conditioning integrated machine and a heat-pipe air-wall. The heat-pipe air-wall is arranged in a machine room and adjacent to a server cabinet, and comprises a plurality of heat-pipe evaporation ends arranged in parallel and end fans arranged in cooperation with the heat-pipe evaporation ends. The heat-pipe air-conditioning integrated machine comprises a heat-pipe condenser, a compressor refrigeration module formed by a cold side of a refrigerant heat exchanger, an expansion valve, a hot side of a waste heat recovery heat exchanger and a compressor through pipes in sequence, and an inlet refrigerant three-way valve and an outlet refrigerant three-way valve. The inlet of the inlet refrigerant three-way valve is communicated with the outlet of the heat-pipe air-wall, the first outlet is communicated with the inlet of the heat-pipe condenser, and the second outlet is communicated with the hot side inlet of the refrigerant heat exchanger. The first inlet of the outlet refrigerant three-way valve is communicated with the outlet of the heat-pipe condenser, the second inlet is communicated with the hot side outlet of the refrigerant heat exchanger, and the outlet is communicated with the inlet of the heat-pipe air-wall. The cold side of the waste heat recovery heat exchanger is communicated with a heat user through a pipe. The solar energy storage power supply unit comprises a photovoltaic assembly, a current collection box, an inverter, a storage battery and a power distribution cabinet, the output end of the photovoltaic assembly is sequentially connected with the current collection box, the inverter and the storage battery and is electrically connected with the power distribution cabinet, the power distribution cabinet is simultaneously connected with a commercial power network, and the heat-pipe air-conditioning integrated machine and the heat-pipe air-wall are supplied with power by one of the commercial power and the solar energy through the power distribution cabinet.

2. The solar energy storage and waste heat recovery heat pipe multi-connected wind wall machine room heat dissipation system according to claim 1, characterized in that, The heat-pipe air-conditioning integrated machine comprises a heat-pipe refrigeration mode, a compressor refrigeration mode and a heat-pipe refrigeration and compressor refrigeration mixed mode, and the switching and control of refrigerant flow direction are realized by the opening and closing states of the inlet refrigerant three-way valve and the outlet refrigerant three-way valve.

3. The solar energy storage and waste heat recovery heat pipe multi-connected wind wall machine room heat dissipation system according to claim 2, characterized in that, When the natural cold source is sufficient, the heat-pipe refrigeration mode is run: the compressor refrigeration module is closed, the inlet refrigerant three-way valve is switched to the state that the inlet is only communicated with the first outlet, the outlet refrigerant three-way valve is switched to the state that the outlet is only communicated with the first inlet, the refrigerant steam in the heat-pipe air-wall enters the heat-pipe condenser through the inlet refrigerant three-way valve, is condensed into liquid and then returns to the heat-pipe air-wall through the outlet refrigerant three-way valve.

4. The solar energy storage and waste heat recovery heat pipe multi-connected wind wall machine room heat dissipation system according to claim 2, characterized in that, When the natural cold source can only be partially utilized, the heat-pipe refrigeration and compressor refrigeration mixed mode is run: the compressor refrigeration module is started, the inlet refrigerant three-way valve is switched to the state that the inlet is simultaneously communicated with the first outlet and the second outlet, the outlet refrigerant three-way valve is switched to the state that the outlet is simultaneously communicated with the first inlet and the second inlet, the refrigerant steam in the heat-pipe air-wall enters the heat-pipe condenser and the hot side of the refrigerant heat exchanger through the inlet refrigerant three-way valve, is condensed into liquid and then returns to the heat-pipe air-wall through the outlet refrigerant three-way valve; at this time, the refrigerant in the hot side of the waste heat recovery heat exchanger exchanges heat with the user water in the cold side of the waste heat recovery heat exchanger in the compressor refrigeration module.

5. The solar energy storage and waste heat recovery heat pipe multi-connected wind wall machine room heat dissipation system according to claim 2, characterized in that, When the natural cold source cannot be utilized, the compressor refrigeration mode is run: the compressor refrigeration module is started, the inlet refrigerant three-way valve is switched to the state that the inlet is only communicated with the second outlet, the outlet refrigerant three-way valve is switched to the state that the outlet is only communicated with the second inlet, the refrigerant steam in the heat-pipe air-wall enters the hot side of the refrigerant heat exchanger through the inlet refrigerant three-way valve, is condensed into liquid and then returns to the heat-pipe air-wall through the outlet refrigerant three-way valve; at this time, the refrigerant in the hot side of the waste heat recovery heat exchanger exchanges heat with the user water in the cold side of the waste heat recovery heat exchanger in the compressor refrigeration module.

6. The solar energy storage and waste heat recovery heat pipe multi-connected wind wall machine room heat dissipation system according to claim 1, characterized in that, The heat pipe air wall adopts modular design, and its installation mode is at least one of the following: placed between the air conditioning room and the wall of the machine room, the end of the row of cabinets or opposite to the exhaust of the row of cabinets; and the heat pipe air conditioner integrated machine adopts a multi-connected mode, one heat pipe air conditioner integrated machine drags multiple heat pipe air walls.

7. The solar energy storage and waste heat recovery heat pipe multi-connected wind wall machine room heat dissipation system according to claim 1, characterized in that, The heat pipe air wall also includes a wind wall frame, an indoor unit controller, and temperature and pressure sensors arranged at the inlet and outlet of the heat pipe air wall. The multiple heat pipe evaporation ends are arranged in an array in the wind wall frame, and the indoor unit controller controls the start and stop and speed of each end fan according to the sensor data.

8. The solar energy storage and waste heat recovery heat pipe multi-connected wind wall machine room heat dissipation system according to claim 1, characterized in that, The heat pipe air conditioner integrated machine also includes a sheet metal frame, a condensing fan, an outdoor unit controller, and temperature and pressure sensors. The sheet metal frame is used to fix and support each component. The condensing fan is arranged near the heat dissipation side of the heat pipe condenser. Each temperature and pressure sensor is installed at the key node of the refrigerant gas pipe, the refrigerant liquid pipe, and the compressor refrigeration circuit to collect outdoor temperature and refrigerant pipeline pressure information in real time. The outdoor unit controller adjusts the speed of the condensing fan and the operating mode of the heat pipe air conditioner integrated machine in real time according to the sensor data.

9. The solar energy storage and waste heat recovery heat pipe multi-connected wind wall machine room heat dissipation system according to claim 1, characterized in that, A storage tank and a refrigerant pump are installed in parallel on the communication pipeline between the outlet of the refrigerant three-way valve and the inlet of the heat pipe air wall. The storage tank is used to buffer the flow fluctuation during the phase change of the refrigerant, and the refrigerant pump accelerates the flow of the refrigerant when power is needed.

10. The solar energy storage and waste heat recovery heat pipe multi-connected wind wall machine room heat dissipation system according to claim 1, characterized in that, In the solar energy storage power supply unit, the photovoltaic module uses one or more combinations of single-crystal silicon photovoltaic modules, polycrystalline silicon photovoltaic modules, thin-film photovoltaic modules, or perovskite photovoltaic modules; the storage battery uses one or more combinations of lithium ion batteries, lead-acid batteries, flow batteries, or supercapacitors; and the inverter uses one of a centralized inverter, a group string inverter, or a micro inverter.

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