A system for data center heat utilization

Abstract

The application provides a data center heat utilization system, which comprises a data center heat dissipation end (1), a heat exchanger (2), an evaporator (3), a compressor (4) and a condenser (5). The heat exchanger (2) absorbs heat from the data center heat dissipation end (1) through a first heat exchange medium on one side of the heat exchanger (2), and exchanges heat with a second heat exchange medium on the other side of the heat exchanger (2). The second heat exchange medium evaporates a third heat exchange medium in the evaporator (3), the evaporated third heat exchange medium is compressed by the compressor (4) to improve the heat density, and exchanges heat with low-temperature water in the condenser (5), and the low-temperature water is converted into hot water. In the heating season, the hot water is sent into a heat supply pipe network as a heating heat source, and can also be directly used as hot water for residents or hotels. In the non-heating season, the hot water is provided for residents or hotels, and when the hot water demand is low, the heat is first stored in a hot water storage tank (7), and in the peak demand period, the hot water is sent into the corresponding pipe network by a hot water pump (8).

Description

Technical Field

[0001] This application belongs to the technical field of energy processing, and in particular relates to a system for utilizing heat in a data center. Background Technology

[0002] With the rapid development of technologies such as cloud computing, the Internet of Things, big data, and artificial intelligence, the demand for timely and efficient processing of massive amounts of data is constantly increasing. As the most basic infrastructure for data processing, data centers consume a large amount of electricity for the operation and heat dissipation of IT equipment, with a significant portion of this electricity used for cooling and heat dissipation systems. Traditional technologies directly discharge heat into the atmosphere or natural water flows through air-cooling or water-cooling equipment, resulting in energy waste. Utility Model Content

[0003] Existing technologies directly release heat into the atmosphere or natural water flow through air-cooling or water-cooling equipment, resulting in energy waste.

[0004] To address the aforementioned technical problems, according to some embodiments, this application provides a data center heat utilization system, comprising:

[0005] Data center heat dissipation end;

[0006] A heat exchanger, the heat-dissipating section of which is connected to the heat dissipation end of the data center, the heat-dissipating section of which is circulated with a first heat exchange medium, and the heat-absorbing section of which is circulated with a second heat exchange medium, is used to absorb heat from the heat dissipation end of the data center using the first heat exchange medium and transfer the heat to the second heat exchange medium.

[0007] A heat pump comprises an evaporator, a compressor, and a condenser. The heat-absorbing section of the heat exchanger is connected to the evaporator and is used to evaporate a third heat exchanger using the heat from the second heat exchange medium. The compressor is connected to the evaporator and is used to compress the evaporated third heat exchange medium. The condenser is connected to the compressor and the evaporator and is used to exchange heat between the compressed third heat exchange medium and low-temperature water. The hot water formed after the low-temperature water absorbs heat is supplied to external users.

[0008] Furthermore, the inlet of the heat absorption section of the condenser is connected to the water supply pipeline, and the outlet of the heat absorption section of the condenser is connected to the heating network, hot water network, or hot water storage tank.

[0009] Furthermore, the outlet of the heat absorption section of the condenser is connected to the heating network and the input end of the hot water storage tank, respectively;

[0010] The output end of the hot water storage tank is connected to the heating network, and a hot water pump is installed between the output end of the hot water storage tank and the heating network.

[0011] Furthermore, the hot water storage tank has at least one water storage cavity, and a phase change material layer is provided in the accommodating space of the water storage cavity or on the cavity wall.

[0012] Furthermore, the hot water storage tank has multiple water storage chambers inside, with adjacent water storage chambers separated by a layer of heat insulation material; each water storage chamber has multiple sets of phase change material layers arranged in a phase-separated manner, and the phase change temperature of the phase change material layers in different water storage chambers is different.

[0013] Furthermore, the heat exchanger is one or a combination of an air-water heat exchanger and a plate heat exchanger.

[0014] Furthermore, the heat exchanger's heat absorption section inlet is connected to the evaporator's heat release section outlet, and the heat exchanger's heat absorption section outlet is connected to the evaporator's heat release section inlet.

[0015] Furthermore, the outlet of the heat absorption section of the evaporator is connected to the inlet of the heat release section of the condenser, and the compressor is located between the outlet of the heat absorption section of the evaporator and the inlet of the heat release section of the condenser;

[0016] The inlet of the heat absorption section of the evaporator is connected to the outlet of the heat release section of the condenser.

[0017] Furthermore, a pressure reducing valve is provided between the inlet of the heat release section of the condenser and the outlet of the heat absorption section of the evaporator.

[0018] The heat pump is an air source heat pump or a water source heat pump, or an air source heat pump and a water source heat pump connected in series.

[0019] The above-mentioned technical solution of this utility model has at least the following beneficial technical effects:

[0020] The data center heat utilization system of this application absorbs heat from the heat dissipation end of the data center through a first heat exchange medium on one side of the heat exchanger and exchanges heat with a second heat exchange medium on the other side of the heat exchanger; the heated second heat exchange medium causes a third heat exchange medium in the evaporator to evaporate, the evaporated third heat exchange medium is compressed by the compressor to increase the heat density, and exchanges heat with low temperature water in the condenser, and the low temperature water is converted into hot water for external users. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or in the conventional technology, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a data center heat utilization system according to one embodiment of this application.

[0023] Figure label:

[0024] 1. Data center heat dissipation end; 2. Heat exchanger; 3. Evaporator; 4. Compressor; 5. Condenser; 6. Pressure reducing valve; 7. Hot water storage tank; 8. Hot water pump; 9. Heating network; 10. Water supply pipeline. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the various embodiments of this application will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details are presented in the various embodiments of this application to facilitate a better understanding of the application. However, the technical solutions claimed in this application can be implemented even without these technical details and various variations and modifications based on the following embodiments. The division of the various embodiments below is for ease of description and should not constitute any limitation on the specific implementation of this application. The various embodiments can be combined with and referenced by each other without contradiction.

[0026] Currently, existing technologies directly release heat into the atmosphere or natural water flow through air-cooled or water-cooled equipment, which results in energy waste.

[0027] To address the aforementioned problems, one embodiment of this application provides a system for utilizing heat in a data center, such as... Figure 1 As shown in the structural diagram, the system specifically includes:

[0028] Data center heat dissipation end 1; the data center heat dissipation end 1 can be a heat dissipation device for the data center, including air-cooled and liquid-cooled types.

[0029] A first heat exchange medium flows on one side of heat exchanger 2, and a second heat exchange medium flows on the other side. The first heat exchange medium flowing in the heat dissipation section of heat exchanger 2 absorbs heat from the heat dissipation end 1 of the data center and transfers the heat to the second heat exchange medium in the heat absorption section of heat exchanger 2.

[0030] The heat pump consists of an evaporator 3, a compressor 4, and a condenser 5. The evaporator 3 is connected to the heat absorption section of the heat exchanger 2. A second heat exchange medium flows on one side of the evaporator 3, while a liquid third heat exchange medium flows on the other side. The heat from the second heat exchange medium causes the third heat exchange medium to evaporate. The compressor 4 is connected to the evaporator 3 and is used to compress the evaporated third heat exchange medium, which is the refrigerant and can be propane. The condenser 5 is connected to the compressor 4 and the evaporator 3. It uses the compressed third heat exchange medium to exchange heat with low-temperature water. After heat exchange, the third heat exchange medium becomes liquid and flows back to the evaporator 3 from the condenser 5. The low-temperature water absorbs heat to form hot water for external use.

[0031] In one embodiment, the inlet of the heat absorption section of the condenser 5 is connected to the water supply pipeline 10, and the outlet of the heat absorption section of the condenser 5 is connected to the heating network 9, the hot water network, or the hot water storage tank 7. The system can deliver hot water to the heating network 9 as a heating source during the heating season, or it can be used directly as hot water for residents or hotels.

[0032] Optionally, the outlet of the heat absorption section of the condenser 5 is connected to both the heating network 9 and the input end of the hot water storage tank 7; the output end of the hot water storage tank 7 is connected to the heating network 9, and a hot water pump 8 is installed between the output end of the hot water storage tank 7 and the heating network 9. During the non-heating season, it can be used directly as hot water for residents or hotels. When the demand for hot water is low, the heat can be stored in the hot water storage tank 7, and during peak demand periods, it can be pumped into the corresponding network or pipeline by the hot water pump 8.

[0033] Alternatively, the hot water storage tank 7 can be a conventional single-chamber water storage tank.

[0034] Optionally, the hot water storage tank 7 has at least one water storage chamber; a phase change material layer is provided in the accommodating space of the water storage chamber or on the chamber wall. The phase change material absorbs or releases a large amount of latent heat (usually 5-10 times the sensible heat) through solid-liquid phase change, thereby significantly increasing the heat storage capacity per unit volume.

[0035] Optionally, the hot water storage tank 7 has multiple water storage chambers inside, with adjacent chambers separated by a layer of insulating material. Each chamber contains or has multiple sets of spaced-apart phase change material layers, allowing water to flow between them. The phase change temperatures of the phase change material layers in different chambers differ, enabling the storage of hot water at different temperatures and increasing heat density. Different temperatures of hot water are obtained by controlling the efficiency of the heat pump. Preferably, the input end and output end of the hot water storage tank 7 are connected to each water storage chamber, and the opening and closing of valves corresponding to each chamber allows hot water at different temperatures to enter the appropriate chamber. External users can then select the desired temperature of hot water when needed. The materials in the different phase change material layers can be paraffin wax (melting point 25-80℃), lauric acid (melting point 40-50℃), or hydrates (such as Na2SO4·10H2O, melting point 32℃).

[0036] In one embodiment, the heat exchanger 2 is one or a combination of an air-water heat exchanger and a plate heat exchanger.

[0037] Optionally, when the heat dissipation equipment of the data center is air-cooled, an air-water heat exchanger is used, with air as the first heat exchange medium and water as the second heat exchange medium.

[0038] When the heat dissipation equipment of the data center is liquid-cooled, a plate heat exchanger is used. The first heat exchange medium is water or directly the coolant of the data center, and the second heat exchange medium is water.

[0039] Preferably, the inlet of the heat exchanger 2 is connected to the outlet of the heat pump evaporator 3, and the outlet of the heat exchanger 2 is connected to the inlet of the heat pump evaporator 3.

[0040] Furthermore, the outlet of the heat absorption section of the evaporator 3 is connected to the inlet of the heat release section of the condenser 5, and the compressor 4 is located between the outlet of the heat absorption section of the evaporator 3 and the inlet of the heat release section of the condenser 5; the inlet of the heat absorption section of the evaporator 3 is connected to the outlet of the heat release section of the condenser 5. Furthermore, a pressure reducing valve 6 is provided between the inlet of the heat release section of the condenser 5 and the outlet of the heat absorption section of the evaporator 3. The third heat exchange medium absorbs heat from the second heat exchange medium in the evaporator 3, changing from a liquid state to a gaseous state, and is then compressed by the compressor 4. The compressor 4 can be a variable frequency scroll compressor, which can automatically adjust the compression ratio according to the heat load. The compressed gaseous third heat exchange medium enters the condenser 5 to exchange heat with low-temperature water. After releasing heat, the gaseous third heat exchange medium transforms into a liquid state and returns to the evaporator 3 under the control of the pressure and flow rate by the compressor 4 and the pressure reducing valve 6, forming a circulating heat exchange.

[0041] In one embodiment, the heat pump is an air source heat pump or a water source heat pump, or an air source heat pump and a water source heat pump connected in series.

[0042] The air source heat pump and the water source heat pump are connected in series, which involves two heating processes, resulting in a higher temperature of the generated steam. Specifically, the evaporator of the air source heat pump is connected to the heat exchanger 2, and the condenser of the air source heat pump is connected to the evaporator of the water source heat pump. One end of the condenser of the water source heat pump is connected to the water supply pipeline 10, and the other end is connected to the heating network 9, the hot water network, or the hot water storage tank 7.

[0043] In the description of this utility model, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this application and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this application should be included within the protection scope of this application. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A system for utilizing heat in a data center, characterized in that, include: Data center heat dissipation end (1); The heat exchanger (2) has a heat dissipation section connected to the heat dissipation end (1) of the data center. A first heat exchange medium flows in the heat dissipation section of the heat exchanger (2), and a second heat exchange medium flows in the heat absorption section of the heat exchanger (2). The first heat exchange medium is used to absorb the heat from the heat dissipation end (1) of the data center and transfer the heat to the second heat exchange medium. The heat pump has an evaporator (3), a compressor (4), and a condenser (5); the heat absorption section of the heat exchanger (2) is connected to the evaporator (3) and is used to use the heat of the second heat exchange medium to evaporate the third heat exchange medium; the compressor (4) is connected to the evaporator (3) and is used to compress the evaporated third heat exchange medium; the condenser (5) is connected to the compressor (4) and the evaporator (3) and is used to use the compressed third heat exchange medium to exchange heat with low-temperature water, and the hot water formed after the low-temperature water absorbs heat is used by external users.

2. The data center heat utilization system according to claim 1, characterized in that, The inlet of the heat absorption section of the condenser (5) is connected to the water supply pipeline (10), and the outlet of the heat absorption section of the condenser (5) is connected to the heating network (9), the hot water network, or the hot water storage tank (7).

3. The data center heat utilization system according to claim 2, characterized in that, The heat absorption section outlet of the condenser (5) is connected to the heating network and the input end of the hot water storage tank (7), respectively. The output end of the hot water storage tank (7) is connected to the heating network, and a hot water pump (8) is provided between the output end of the hot water storage tank (7) and the heating network.

4. The data center heat utilization system according to claim 2, characterized in that, The hot water storage tank (7) has at least one water storage cavity, and a phase change material layer is provided in the accommodating space of the water storage cavity or on the cavity wall.

5. The data center heat utilization system according to any one of claims 2-4, characterized in that, The hot water storage tank (7) is provided with multiple water storage chambers inside, and adjacent water storage chambers are separated by a heat insulation material layer; Each of the water storage chambers contains multiple sets of phase change material layers spaced apart, and the phase change temperature of the phase change material layers in different water storage chambers is different.

6. The data center heat utilization system according to claim 1, characterized in that, The heat exchanger (2) is one or a combination of an air-water heat exchanger and a plate heat exchanger.

7. The data center heat utilization system according to claim 1, characterized in that, The heat exchanger (2) has its heat absorption section inlet connected to the heat release section outlet of the evaporator (3), and the heat exchanger (2) has its heat absorption section outlet connected to the heat release section inlet of the evaporator (3).

8. The data center heat utilization system according to claim 7, characterized in that, The heat absorption section outlet of the evaporator (3) is connected to the heat release section inlet of the condenser (5), and the compressor (4) is located between the heat absorption section outlet of the evaporator (3) and the heat release section inlet of the condenser (5). The inlet of the heat absorption section of the evaporator (3) is connected to the outlet of the heat release section of the condenser (5).

9. The data center heat utilization system according to claim 8, characterized in that, A pressure reducing valve (6) is provided between the inlet of the heat release section of the condenser (5) and the outlet of the heat absorption section of the evaporator (3).

10. The data center heat utilization system according to claim 1, characterized in that, The heat pump is an air source heat pump or a water source heat pump, or an air source heat pump and a water source heat pump connected in series.

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