Liquid cooling distribution unit based on phase change cooling

Abstract

The invention belongs to the technical field of refrigerating systems in the data center industry, and provides a liquid cooling distribution unit based on phase change cooling. The air conditioner comprises an outdoor unit, a pump cabinet, a pipeline and an indoor unit. The outdoor unit, the pump cabinet and the indoor unit are sequentially connected and communicated through the pipeline; wherein the outdoor unit is an air-cooled condenser; the pump cabinet comprises a refrigeration compressor, a fluorine pump and a liquid storage tank; wherein the air-cooled condenser comprises a fan and a finned coil condenser; one end of the finned coil condenser is connected and communicated with the cold compressor; the other end of the finned coil condenser is communicated with the liquid storage tank; the liquid storage tank is communicated with the fluorine pump; the indoor unit comprises a primary side circulation pipeline, a heat exchanger, a secondary side circulation pipeline and a secondary side circulation pump; the indoor unit is used for liquid cooling distribution; one side of the heat exchanger is communicated with the primary side circulation pipeline; and the secondary side circulating pipeline is arranged on the other side of the heat exchanger and is communicated with the secondary side circulating pump.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration systems in the data center industry, and in particular to a liquid cooling distribution unit based on phase change cooling. Background Art

[0002] Existing refrigeration devices in the data center industry mostly use cooling towers, dry coolers and other equipment to provide cold water (or solutions), which are then transported to the cold distribution unit. The distribution unit then uses low-temperature water (or solutions) to cool the high-temperature coolant, and distributes the cooled coolant to the IT equipment that needs cooling.

[0003] However, such equipment, first of all, has high equipment cost. Secondly, the coolant can only change in temperature during operation, which leads to low heat exchange efficiency. Thirdly, water or aqueous solution is used as cooling water, and the heat dissipation process consumes a large amount of water resources.

[0004] In view of this, we propose a device that can cause refrigerant phase change during the circulation process, which effectively improves the heat exchange efficiency and does not consume water resources during operation. Summary of the invention

[0005] In view of the defects in the prior art, the present invention provides a liquid cooling distribution unit based on phase change cooling to improve heat exchange efficiency and save water resources.

[0006] The present invention provides a liquid cooling distribution unit based on phase change cooling, comprising: an outdoor unit, a pump cabinet, a pipeline and an indoor unit; the outdoor unit, the pump cabinet and the indoor unit are connected in sequence through the pipeline and communicate with each other; the outdoor unit comprises an air-cooled condenser; the air-cooled condenser comprises a fan and a fin coil condenser; the pump cabinet comprises a refrigeration compressor, a fluorine pump and a liquid storage tank; one end of the fin coil condenser is connected and communicated with the refrigeration compressor; the other end of the fin coil condenser is communicated with the liquid storage tank; the liquid storage tank is communicated with the fluorine pump; the indoor unit comprises a primary side circulation pipeline, a heat exchanger, a secondary side circulation pipeline and a secondary side circulation pump; the indoor unit is used for liquid cooling distribution; one side of the heat exchanger is communicated with the primary side circulation pipeline; the secondary side circulation pipeline is arranged on the other side of the heat exchanger and communicated with the secondary side circulation pump.

[0007] Furthermore, it also includes a one-way valve, which is installed on the pipeline. In actual use, the purpose of this design is to ensure that the whole realizes one-way flow.

[0008] Furthermore, the refrigeration compressor, fluorine pump and liquid storage tank are integrated and installed in the pump cabinet. In actual use, this design facilitates integration, effectively improves the convenience of installation, and ensures overall installation.

[0009] Furthermore, the air-cooled condenser is installed outdoors and close to the pump cabinet.

[0010] Furthermore, the pipeline is a copper pipe. In actual use, this material has a long service life and good heat exchange effect.

[0011] Furthermore, the pipeline also includes a liquid outlet pipe and an air inlet pipe. In actual use, this method is convenient for hot handover.

[0012] It can be seen from the above technical solution that the beneficial effects of the liquid cooling distribution unit based on phase change cooling provided by the present invention are:

[0013] (1) Using Freon refrigerant instead of water (or solution) has high heat transfer efficiency and can effectively reduce energy consumption.

[0014] (2) The heat exchanger in the indoor unit (cooling distribution unit) uses a water / fluorine heat exchanger. Unlike conventional water / water heat exchangers, the Freon in the water / fluorine heat exchanger undergoes a phase change.

[0015] (3) The refrigerant circulation system is equipped with a compressor, a fluorine pump, and a one-way valve. At the same time, different conveying equipment (compressor or fluorine pump) is started according to different outdoor environmental conditions to reduce energy consumption;

[0016] (4) No water resources are consumed during the operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for the specific embodiments or the prior art description. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0018] Figure 1 A three-dimensional schematic diagram of an outdoor unit of a liquid cooling distribution unit based on phase change cooling provided by an embodiment of the present invention;

[0019] Figure 2 A three-dimensional schematic diagram of a pump cabinet of a liquid cooling distribution unit based on phase change cooling provided by an embodiment of the present invention;

[0020] Figure 3 A three-dimensional schematic diagram of an indoor unit of a liquid cooling distribution unit based on phase change cooling provided by an embodiment of the present invention;

[0021] Figure 4 A schematic diagram of the system principle of a liquid cooling distribution unit based on phase change cooling provided in an embodiment of the present invention;

[0022] Figure 5 A schematic diagram of the system principle of a liquid cooling distribution unit based on phase change cooling provided by an embodiment of the present invention;

[0023] Reference numerals:

[0024] Outdoor unit 1, air-cooled condenser 11, fan 111, fin coil condenser 112, pump cabinet 2, refrigeration compressor 21, fluorine pump 22, liquid storage tank 23, pipeline 3, liquid outlet pipe 31, air inlet pipe 32, indoor unit 4, primary side circulation pipeline 41, heat exchanger 42, secondary side circulation pipeline 43, secondary side circulation pump 44, check valve 5. DETAILED DESCRIPTION

[0025] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0026] In this embodiment:

[0027] The liquid cooling distribution unit based on phase change cooling proposed in this embodiment can improve heat exchange efficiency and save water resources.

[0028] like Figure 1-Figure 5 As shown: The present invention provides a liquid cooling distribution unit based on phase change cooling, comprising: an outdoor unit 1, a pump cabinet 2, a pipeline 3 and an indoor unit 4; the outdoor unit 1, the pump cabinet 2 and the indoor unit 4 are connected in sequence through the pipeline 3 and communicate with each other; wherein the outdoor unit 1 comprises an air-cooled condenser 11; wherein the air-cooled condenser 11 comprises a fan 111 and a fin coil condenser 112; the pump cabinet 2 comprises a refrigeration compressor 21, a fluorine pump 22 and a liquid storage tank 23; one end of the fin coil condenser 112 is connected to the refrigeration compressor 21 is connected; the other end of the fin coil condenser 112 is connected to the liquid storage tank 23; the liquid storage tank 23 is connected to the fluorine pump 22; the indoor unit 4 includes a primary side circulation pipeline 413, a heat exchanger 42, a secondary side circulation pipeline 433 and a secondary side circulation pump 44; the indoor unit 4 is used for liquid cooling distribution; one side of the heat exchanger 42 is connected to the primary side circulation pipeline 413; the secondary side circulation pipeline 433 is arranged on the other side of the heat exchanger 42 and is connected to the secondary side circulation pump 44. Using Freon refrigerant instead of water (or solution) has high heat transfer efficiency and can effectively reduce energy consumption. The heat exchanger 42 in the indoor unit 4 (cold capacity distribution unit) adopts a water / fluorine heat exchanger 42, which is different from the conventional water / water heat exchanger 42. The Freon in the water / fluorine heat exchanger 42 undergoes phase change. The refrigerant circulation system is equipped with a compressor, a fluorine pump 22, and a one-way valve 5. At the same time, different conveying equipment (compressor or fluorine pump 22) is started according to different outdoor environmental conditions, which can reduce energy consumption; no water resources are consumed during the operation of the equipment.

[0029] In this embodiment, a one-way valve 5 is also included, and the one-way valve 5 is installed on the pipeline 3. In actual use, the purpose of this design is to ensure that the overall one-way flow is achieved.

[0030] In this embodiment, the refrigeration compressor 21, the fluorine pump 22, and the liquid storage tank 23 are integrated and installed in the pump cabinet 2. In actual use, this design facilitates integration, effectively improves the convenience of installation, and ensures overall installation.

[0031] In this embodiment, the air-cooled condenser 11 is installed outdoors and close to the pump cabinet 2 .

[0032] In this embodiment, the pipe 3 is a copper pipe. In actual use, this material has a long service life and good heat exchange effect.

[0033] In this embodiment, the pipeline 3 further includes a liquid outlet pipe 31 and an air inlet pipe 32. In actual use, this method is convenient for thermal transfer.

[0034] In actual operation, the refrigerant cycle of the present invention has two operating modes, and the operating mode is mainly selected according to the outdoor environmental conditions.

[0035] The first mode: start the fluorine pump 22 and the air-cooled condenser 11 to drive the refrigerant circulation;

[0036] The second mode is to start the refrigeration compressor 21, the fluorine pump 22, and the air-cooled condenser 11 to drive the refrigerant circulation.

[0037] In actual operation, when the outdoor temperature is too high, similar to the hot summer climate, the second mode can be started to increase the compressor and lower the temperature; when the outdoor temperature is too low, the fluorine pump 22 and the air-cooled condenser 11 can be directly started to drive the refrigerant circulation; in this way, energy consumption loss can be effectively reduced.

[0038] In summary, this liquid cooling distribution unit based on phase change cooling uses Freon refrigerant instead of low-temperature water or other coolants to achieve phase change in the circulation flow, which makes the heat exchange efficiency high; and it can switch modes according to the outdoor temperature, effectively reducing the operating energy consumption of the equipment in spring, autumn and winter; and it does not consume water resources during operation. Therefore, this device is suitable for industry promotion.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A liquid cooling distribution unit based on phase change cooling, characterized in that: include: An outdoor unit, a pump cabinet, a pipeline and an indoor unit; the outdoor unit, the pump cabinet and the indoor unit are sequentially connected through the pipeline and communicate with each other; Wherein the outdoor unit comprises an air-cooled condenser; wherein the air-cooled condenser comprises a fan and a fin coil condenser; The pump cabinet includes a refrigeration compressor, a fluorine pump and a liquid storage tank; One end of the fin coil condenser is connected to the refrigeration compressor; the other end of the fin coil condenser is connected to the liquid storage tank; the liquid storage tank is connected to the fluorine pump; The indoor unit includes a primary circulation pipeline, a heat exchanger, a secondary circulation pipeline and a secondary circulation pump; the indoor unit is used for liquid cooling distribution; one side of the heat exchanger is connected to the primary circulation pipeline; the secondary circulation pipeline is arranged on the other side of the heat exchanger and is connected to the secondary circulation pump.

2. A liquid cooling distribution unit based on phase change cooling according to claim 1, characterized in that: It also includes a one-way valve installed on the pipeline.

3. A liquid cooling distribution unit based on phase change cooling according to claim 1, characterized in that: The refrigeration compressor, fluorine pump and liquid storage tank are integrated and installed in the pump cabinet.

4. A liquid cooling distribution unit based on phase change cooling according to claim 1, characterized in that: The air-cooled condenser is installed outdoors and close to the pump cabinet.

5. The liquid cooling distribution unit based on phase change cooling according to claim 1, characterized in that: The pipeline is a copper pipe.

6. A liquid cooling distribution unit based on phase change cooling according to claim 1, characterized in that: The pipeline also includes a liquid outlet pipe and an air inlet pipe.

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