Machine room refrigerating system beneficial to energy conservation

Abstract

The machine room refrigerating system comprises a water chilling unit, a water supply pipeline and a water return pipeline are arranged on one side of the water chilling unit, and return water of the water return pipeline cools a machine room and then flows back to a softened water tank arranged on the water supply side. A cooling tower is arranged on the other side of the water chilling unit, a circulation pipeline is formed between the cooling tower and the water chilling unit, a plate type heat exchange unit is arranged between the cooling tower and the softened water tank and connected with the water chilling unit in parallel, and the high-temperature end of the plate type heat exchange unit and the cooling tower form independent cooling water circulation. The low-temperature end of the plate heat exchanger unit, the machine room and the softened water tank form independent chilled water circulation; while the machine room is cooled, a refrigeration mode can be used according to the seasonal temperature difference characteristics, and energy conservation can be facilitated.

Description

Technical Field

[0001] The utility model relates to a computer room refrigeration system beneficial to energy conservation, belonging to the technical field of refrigeration tools. Background Art

[0002] With the development of the economic society, the people's demand for a better life is increasing day by day. Vigorously promoting centralized heating (refrigeration) in civil buildings will greatly improve the living quality of residents, enhance their sense of gain and happiness, and is of great significance for improving the urban grade and people's livelihood. Higher requirements are put forward for the energy efficiency of the central air-conditioning system in public buildings. Considering that the operating energy efficiency of the cold source system in domestic computer rooms is generally low at present and there is a large energy-saving space, developing high-efficiency computer rooms is an important breakthrough for improving the refrigeration energy efficiency of public buildings.

[0003] That is: there is a need for a computer room refrigeration system that can cool the computer room and, according to the characteristics of seasonal temperature differences, use a refrigeration mode and is beneficial to energy conservation. Content of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a computer room refrigeration system beneficial to energy conservation, which can cool the computer room and, according to the characteristics of seasonal temperature differences, use a refrigeration mode and is beneficial to energy conservation; it can overcome the deficiencies of the prior art.

[0005] The purpose of the utility model is realized through the following technical solutions:

[0006] The utility model discloses a computer room refrigeration system beneficial to energy conservation, which includes a chiller. A water supply pipeline and a return water pipeline are arranged on one side of the chiller. The return water of the return water pipeline cools the computer room and then flows back to a soft water tank arranged on the water supply side. A cooling tower is arranged on the other side of the chiller. A circulation pipeline is formed between the cooling tower and the chiller. A plate heat exchanger unit is arranged between the cooling tower and the soft water tank. The plate heat exchanger unit is connected in parallel with the chiller. The high-temperature end of the plate heat exchanger unit and the cooling tower form an independent cooling water circulation, and the low-temperature end of the plate heat exchanger unit and the computer room and the soft water tank form an independent chilled water circulation.

[0007] The cold-end inlet pipe and the cold-end outlet pipe of the above-mentioned chilled water circulation are respectively connected to the water supply pipeline and the return water pipeline, and valves are arranged on both the cold-end inlet pipe and the cold-end outlet pipe.

[0008] In the above-mentioned, a chilled water pump group is arranged on the water supply pipeline.

[0009] The hot-end inlet pipe and the hot-end outlet pipe of the above-mentioned cooling water circulation are respectively connected to the cooling tower outlet pipe and the cooling tower inlet pipe, and valves are arranged on both the hot-end inlet pipe and the hot-end outlet pipe.

[0010] As described above, a cooling water pump set is provided on the outlet pipe of the cooling tower.

[0011] The aforementioned soft water tank is connected to the soft water treatment device.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. By adding a plate heat exchanger unit, the present utility model can, in seasons with relatively low temperatures, such as autumn and winter when the outdoor temperature is low, introduce outdoor low-temperature water through the water supply pipeline. After passing through the plate heat exchanger unit, the temperature of the water in the return pipeline can be further reduced and then introduced into the machine room for cooling the machine room. Meanwhile, through the cooling tower, the high-temperature water after heat exchange by the plate heat exchanger unit can be cooled and then recycled. Moreover, during this process, the chiller does not need to be turned on, which can reduce the energy consumption of the chiller and can select to use the chiller or the plate heat exchanger unit according to the characteristics of the season, thus being beneficial for energy conservation.

[0014] 2. The cold end inlet pipe and the cold end outlet pipe of the chilled water circulation are respectively connected to the water supply pipeline and the return pipeline, and valves are provided on both the cold end inlet pipe and the cold end outlet pipe. In this way, it is possible to select to use the chiller or the plate heat exchanger unit for operation according to needs. Moreover, a chilled water pump set is provided on the water supply pipeline, and the chilled water pump set can improve the circulation efficiency of the chilled water.

[0015] 3. The hot end inlet pipe and the hot end outlet pipe of the cooling water circulation are respectively connected to the outlet pipe of the cooling tower and the inlet pipe of the cooling tower, and valves are provided on both the hot end inlet pipe and the hot end outlet pipe. In this way, the corresponding valves can be opened or closed according to needs to realize the selection of the chiller or the plate heat exchanger unit; moreover, a cooling water pump set is provided on the outlet pipe of the cooling tower, and the cooling water pump set can improve the circulation efficiency of the cooling water.

[0016] Other advantages, objectives, and features of the present utility model will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present utility model. The objectives and other advantages of the present utility model can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the objectives, technical solutions, and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings, where:

[0018] Figure 1 is a schematic connection structure diagram of the present utility model.

[0019] Figure 2 is a schematic connection structure diagram of the prior art.

[0020] Among them, there are a chiller 1, a water supply pipeline 2, a water return pipeline 3, a soft water tank 4, a cooling tower 5, a plate heat exchanger unit 6, a cold end water inlet pipe 7, a cold end water outlet pipe 8, a chilled water pump group 9, a hot end water inlet pipe 10, a hot end water outlet pipe 11, a cooling tower water outlet pipe 12, a cooling tower water inlet pipe 13, a soft water treatment device 14, and a cooling water pump group 15. Specific embodiments

[0021] Hereinafter, with reference to the accompanying drawings, the preferred embodiments of the present invention will be described in detail. It should be understood that the preferred embodiments are only for illustrating the present invention, rather than for limiting the protection scope of the present invention.

[0022] As Figure 1 shown, a machine room refrigeration system disclosed by the present invention that is conducive to energy conservation includes a chiller 1. On one side of the chiller 1, there are a water supply pipeline 2 and a water return pipeline 3. The return water of the water return pipeline 3 cools the machine room and then flows back to the soft water tank 4 provided on the water supply side. The soft water tank 4 is connected to the soft water treatment device 14. On the other side of the chiller 1, there is a cooling tower 5. A circulation pipeline is formed between the cooling tower 5 and the chiller 1. Between the cooling tower 5 and the soft water tank 4, there is a plate heat exchanger unit 6. The plate heat exchanger unit 6 is connected in parallel with the chiller 1. The high-temperature end of the plate heat exchanger unit 6 and the cooling tower 5 form an independent cooling water circulation, and the low-temperature end of the plate heat exchanger unit 6 and the machine room and the soft water tank 4 form an independent chilled water circulation. With such a structure, by adding the plate heat exchanger unit 6, in seasons with relatively low temperatures, such as autumn and winter, when the outdoor temperature is relatively low, at this time, the low-temperature water outdoors is introduced through the water supply pipeline 2. After passing through the plate heat exchanger unit 6, the temperature of the water in the water return pipeline 3 can be further reduced, and then it is introduced into the machine room to cool the machine room. And through the cooling tower 5, the high-temperature water after heat exchange by the plate heat exchanger unit 6 can be cooled and then recycled. At the same time, in this process, the chiller 1 does not need to be turned on, which can reduce the energy consumption of the chiller 1 and can select the use of the chiller 1 or the plate heat exchanger unit 6 according to the characteristics of the season, which is conducive to energy conservation.

[0023] Furthermore, the cold end water inlet pipe 7 and the cold end water outlet pipe 8 of the chilled water circulation are respectively connected to the water supply pipeline 2 and the water return pipeline 3. Valves are provided on both the cold end water inlet pipe 7 and the cold end water outlet pipe 8. At the same time, valves are also provided between the chiller 1 and the water supply pipeline 2 and the water return pipeline 3. In this way, it is possible to select the chiller 1 or the plate heat exchanger unit 6 for operation according to needs. Moreover, a chilled water pump group 9 is provided on the water supply pipeline 2, and the chilled water pump group 9 can improve the circulation efficiency of the chilled water.

[0024] Further, the hot-end water inlet pipe 10 and the hot-end water outlet pipe 11 of the cooling water circulation are respectively connected to the cooling tower outlet pipe 12 and the cooling tower inlet pipe 13, and valves are provided on both the hot-end water inlet pipe 10 and the hot-end water outlet pipe 11. At the same time, valves are provided between the cold water unit 1 and the hot-end water inlet pipe 10 and the hot-end water outlet pipe 11 of the cooling tower 5, so that the corresponding valves can be opened or closed as needed to realize the selection of the cold water unit 1 or the plate heat exchanger unit 6; moreover, a cooling water pump group 15 is provided on the cooling tower outlet pipe 12, and the cooling water circulation efficiency can be improved through the cooling water pump group 15.

[0025] During use, such as in autumn and winter when the outdoor temperature is relatively low, at this time, the water at a low outdoor temperature of 20°C - 25°C is introduced through the water supply pipe 2, and only the plate heat exchanger unit 6 is enabled. The temperature of the water in the return water pipe 3 can be further reduced to 12°C - 18°C, and then introduced into the computer room for cooling the computer room. In summer when the temperature is relatively high, the cold water unit 1 can be normally used for cooling the computer room, which is beneficial to energy conservation.

[0026] The above is only a preferred embodiment of the present invention, and does not impose any form of confidentiality restrictions on the present invention. Any simple modification, equivalent change and modification made to the above embodiments based on the technical content of the present invention and according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A machine room refrigeration system that is beneficial to energy saving, comprising a chiller (1), a water supply pipeline (2) and a water return pipeline (3) being provided on one side of the chiller (1), the return water of the water return pipeline (3) cooling the machine room and then flowing back to a soft water tank (4) provided on the water supply side; a cooling tower (5) being provided on the other side of the chiller (1), a circulation pipeline being formed between the cooling tower (5) and the chiller (1), characterized in that: A plate heat exchanger unit (6) is provided between the cooling tower (5) and the soft water tank (4); the plate heat exchanger unit (6) is connected in parallel with the chiller unit (1); the high-temperature end of the plate heat exchanger unit (6) and the cooling tower (5) form an independent cooling water cycle, and the low-temperature end of the plate heat exchanger unit (6) and the machine room and the soft water tank (4) form an independent chilled water cycle.

2. The energy-saving computer room refrigeration system according to claim 1 is characterized in that: The cold end water inlet pipe (7) and the cold end water outlet pipe (8) of the chilled water cycle are respectively connected to the water supply pipeline (2) and the return water pipeline (3), and valves are provided on the cold end water inlet pipe (7) and the cold end water outlet pipe (8).

3. The energy-saving computer room refrigeration system according to claim 2 is characterized in that: A chilled water pump group (9) is provided on the water supply pipeline (2).

4. The energy-saving computer room refrigeration system according to claim 1, characterized in that: The hot end water inlet pipe (10) and the hot end water outlet pipe (11) of the cooling water circulation are respectively connected to the cooling tower water outlet pipe (12) and the cooling tower water inlet pipe (13), and valves are provided on the hot end water inlet pipe (10) and the hot end water outlet pipe (11).

5. The energy-saving computer room refrigeration system according to claim 4, characterized in that: A cooling water pump group (15) is provided on the cooling tower water outlet pipe (12).

6. The energy-saving computer room refrigeration system according to any one of claims 1 to 5, characterized in that: The soft water tank (4) is connected to a soft water treatment device (14).

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