Dew point evaporation double cold source liquid cooling air conditioning system

Abstract

A dew point evaporation double cold source liquid cooling air conditioning system, comprising a compressor circulation system, the compressor circulation system comprising: a compressor connected to an outdoor condenser, the outdoor condenser connected to an expansion valve, the expansion valve connected to an evaporator, the evaporator connected to the compressor; further comprising a waterway heat exchange system, comprising an indoor heat exchanger, the indoor heat exchanger connected to the evaporator through a first pipeline, the evaporator connected to a water tank through a second pipeline, the water tank connected to the indoor heat exchanger through a third pipeline, thereby forming a first refrigeration cycle; the indoor heat exchanger is also connected to the water side of the outdoor condenser through a fourth pipeline, and the water side of the outdoor condenser is connected to the water tank through a fifth pipeline, thereby forming a second refrigeration cycle. The application has two different refrigeration modes, which can well adapt to different environments, and can calculate the dew point temperature according to the real-time environment air state and automatically adjust the control temperature, thereby significantly saving energy consumption.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of air conditioning systems, and particularly relates to a dew-point evaporation double-cold-source liquid-cooling air conditioning system. BACKGROUND

[0002] Refrigeration and heating equipment such as air conditioners are widely used in daily life and office places. Specifically, an air conditioner is a device for adjusting indoor temperature, humidity and air quality. An air conditioning system generally comprises a compressor, an evaporator, a condenser and an expansion valve, etc. The compressor compresses low-pressure and low-temperature refrigerant gas into high-pressure and high-temperature gas, so that it becomes a high-temperature and high-pressure state. The high-temperature and high-pressure gas is cooled into a high-pressure liquid by the condenser and flows to the evaporator through the expansion valve. The refrigerant in the evaporator rapidly evaporates at low pressure and low temperature, absorbs the heat in the room to cool the indoor air, and at the same time, the moisture is also removed in the evaporation process. The evaporated refrigerant becomes low-temperature and low-pressure gas and returns to the compressor for cyclic operation. In this way, the air conditioning system can continuously absorb heat to reduce the indoor temperature, and at the same time, increase the humidity and cleanliness of the air.

[0003] In the prior art, the traditional air conditioner has only one cold source, namely the evaporator, which makes the working mode of the traditional air conditioner single. This single working mode cannot well adapt to different use environments in actual applications, resulting in increased energy consumption and reduced service life of the air conditioner.

[0004] The present application has made further design and improvement in this direction. SUMMARY

[0005] In view of the above deficiencies in the prior art, the present application provides a dew-point evaporation double-cold-source liquid-cooling air conditioning system, which has two different refrigeration modes, can well adapt to different environments, and significantly saves energy consumption.

[0006] In order to solve the above technical problems, the present application is solved by the following technical scheme.

[0007] The application discloses a dew-point evaporation double-cold-source liquid cooling air conditioning system, which comprises a compressor circulation system, wherein the compressor circulation system comprises a compressor connected to an outdoor condenser, the outdoor condenser is connected to an expansion valve, the expansion valve is connected to an evaporator, and the evaporator is connected to the compressor; the system further comprises a water circuit heat exchange system, wherein the water circuit heat exchange system comprises an indoor heat exchanger connected to the evaporator through a first pipeline, the evaporator is connected to a water tank through a second pipeline, and the water tank is connected to the indoor heat exchanger through a third pipeline, so as to form a first refrigeration cycle; the indoor heat exchanger is further connected to the outdoor condenser (specifically, a water side of the outdoor condenser) through a fourth pipeline, and the outdoor condenser (specifically, the water side of the outdoor condenser) is connected to the water tank through a fifth pipeline, so as to form a second refrigeration cycle; a pump is arranged on the third pipeline; and the first refrigeration cycle and the second refrigeration cycle are selectively operated.

[0008] The dew-point evaporation double-cold-source liquid cooling air conditioning system of the application has two different refrigeration cycles, and the outdoor condenser (specifically, a water side of the outdoor condenser) and the evaporator are used as cold sources, namely double cold sources, so that different refrigeration cycles can be selected according to different ambient temperatures; for example, when the ambient temperature is low, the outdoor condenser (specifically, the water side of the outdoor condenser) is directly used as a cold source for temperature reduction, at this time, the compressor circulation system does not work, the overall power consumption is low, the energy-saving effect is good, and no condensation is generated; when the ambient temperature is high, the compressor circulation system works, and the first refrigeration cycle works to reduce the temperature by using the evaporator as a cold source.

[0009] In an optimal embodiment, a first control valve is arranged on the first pipeline, and a second control valve is arranged on the second pipeline; the first control valve and the second control valve are simultaneously opened or closed, and after being opened, the first refrigeration cycle can be selected and is suitable for a case where the ambient temperature is relatively high.

[0010] In an optimal embodiment, a fourth control valve is arranged on the fourth pipeline, and a fifth control valve is arranged on the fifth pipeline; the fourth control valve and the fifth control valve are simultaneously opened or closed, and after being opened, the second refrigeration cycle can be selected and is suitable for a case where the ambient temperature is relatively low.

[0011] In an optimal embodiment, when the ambient temperature is greater than 15 DEG C, the first refrigeration cycle works; and when the ambient temperature is less than or equal to 15 DEG C, the second refrigeration cycle works; the air conditioning system adopting the double cold sources can adapt to the ambient temperature, effectively reduce the energy consumption, improve the energy efficiency and save energy.

[0012] Compared with the prior art, the application has the following beneficial effects: the dew-point evaporation double-cold-source liquid cooling air conditioning system is provided, has two different refrigeration modes, can well adapt to different environments and significantly save energy consumption. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a schematic diagram of the module connection of the air conditioning system in the present application.

[0014] Figure 2 is a schematic diagram of the module connection of the first refrigeration cycle of the air conditioning system in the present application.

[0015] Figure 3 is a schematic diagram of the module connection of the second refrigeration cycle of the air conditioning system in the present application.

[0016] Figure 4 is a schematic diagram of the air conditioner in one embodiment of the present application.

[0017] Figure 5 is a schematic diagram of the internal structure of the air conditioner in one embodiment Figure 1 .

[0018] Figure 6 is a schematic diagram of the internal structure of the air conditioner in one embodiment Figure 2 . EMBODIMENTS

[0019] The present application will be further described below in conjunction with the specific embodiments and the accompanying drawings.

[0020] In the following embodiments, the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout the description, and the following embodiments described by referring to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0021] In the description of the present application, it should be understood that the terms: center, longitudinal, transverse, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise, etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application. In addition, the terms: first, second, etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features shown. In the description of the present application, unless otherwise explicitly specified and limited, the terms: mounting, connecting, connecting, etc. should be understood in a broad sense, and those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0022] REFERENCE Figures 1 to 6The application relates to a dew point evaporation double-cold-source liquid cooling air conditioner system, which comprises a compressor circulation system, wherein the compressor circulation system comprises a compressor 1 connected to an outdoor condenser 2, the outdoor condenser 2 is connected to an expansion valve 3, the expansion valve 3 is connected to an evaporator 4, and the evaporator 4 is connected to the compressor 1; the system further comprises a water circuit heat exchange system, wherein the water circuit heat exchange system comprises indoor heat exchange 6 connected to the evaporator 4 through a first pipeline 62, the evaporator 4 is connected to a water tank 7 through a second pipeline 65, and the water tank 7 is connected to the indoor heat exchange 6 through a third pipeline 63, so as to form a first refrigeration cycle; the indoor heat exchange 6 is further connected to the outdoor condenser 6 (specifically the water side of the outdoor condenser) through a fourth pipeline 61, and the outdoor condenser 6 (specifically the water side of the outdoor condenser) is connected to the water tank 7 through a fifth pipeline 65, so as to form a second refrigeration cycle; a pump 5 is arranged on the third pipeline 63; and the first refrigeration cycle and the second refrigeration cycle are selectively operated.

[0023] In specific schemes, a first control valve 12 is arranged on the first pipeline 62, and a second control valve 11 is arranged on the second pipeline 65; the first control valve 12 and the second control valve 11 are simultaneously opened or closed, and after being opened, the first refrigeration cycle can be selected and is suitable for the case that the ambient temperature is relatively high; a fourth control valve 14 is arranged on the fourth pipeline 61, and a fifth control valve 13 is arranged on the fifth pipeline 64; the fourth control valve 14 and the fifth control valve 13 are simultaneously opened or closed, and after being opened, the second refrigeration cycle can be selected and is suitable for the case that the ambient temperature is relatively low.

[0024] In the application, different refrigeration modes can be conveniently selected according to different ambient temperatures through the control valve, for example, when the ambient temperature is higher than 15 DEG C, the first refrigeration cycle works; when the ambient temperature is less than or equal to 15 DEG C, the second refrigeration cycle works, and the temperature can be set as 17 DEG C, 14 DEG C or the like according to actual needs. The air conditioner system adopting the double-cold-source can adapt to the ambient temperature, effectively reduce energy consumption, improve energy efficiency and save energy.

[0025] In addition, from the attached Figure 4 to the attached Figure 6 It can be seen that the air conditioner in a specific embodiment of the application comprises a cabinet body 9, the upper portion of the cabinet body 9 is a condenser placing box 8, and a corresponding fan is arranged. In the condenser placing box 8, the fluorine side of the outdoor condenser 2 is arranged on the side facing the outdoor, and the water side of the outdoor condenser 2 is arranged on the side facing the indoor. In the structure, the fluorine side of the outdoor condenser 2 and the water side of the outdoor condenser 2 are arranged in front of and behind a condenser placing box 8 and share a cooling fan, heat exchange is facilitated, pipeline arrangement is facilitated, the overall space is saved, and efficiency is improved.

[0026] The lower space of the cabinet 9 is provided with a compressor 1, an evaporator 4, a pump 5, a water tank 7, a control center, an expansion valve and the like, and corresponding pipeline connection structures. In the present application, the control valve can be an electromagnetic valve, which can be automatically controlled by the program of the control center.

[0027] The dew point evaporation double cold source liquid cooling air conditioning system of the present application has two different refrigeration cycles, and takes the water side of the outdoor condenser 2 and the evaporator 4 as the cold source, that is, double cold source, which can select different refrigeration cycles according to different ambient temperatures, as follows.

[0028] When the ambient temperature is equal to or lower than 15℃, the outdoor condenser 2 is directly taken as the cold source for cooling, at this time the compressor circulation system does not work, the overall power consumption is low, the energy saving effect is good, and no condensation is produced. At this time, the fourth control valve 14 and the fifth control valve 13 are opened, the first control valve 12 and the second control valve 11 are closed, and the pump 5 works, so that the water in the water tank 7 flows in the pipeline, the water is cooled by the ambient temperature after passing through the water side of the outdoor condenser 2, and then flows to the indoor heat exchanger 6 for indoor heat exchange and cooling, saving energy consumption.

[0029] When the ambient temperature is higher than 15℃, the compressor circulation system works, at this time the first refrigeration cycle works, and the evaporator 4 is taken as the cold source for cooling. At this time, the fourth control valve 14 and the fifth control valve 13 are closed, the first control valve 12 and the second control valve 11 are opened, and the pump 5 works, so that the water in the water tank 7 flows in the pipeline, the water is cooled after passing through the evaporator 4, and then flows to the indoor heat exchanger 6 for indoor heat exchange and cooling, and the refrigeration effect is good.

[0030] In addition, in the case that the ambient temperature is high and the humidity is high, when the air conditioner in the present application is in the first refrigeration cycle, the controller of the air conditioner in the present application monitors the ambient temperature and humidity, calculates the dew point temperature of the ambient air, and automatically adjusts the target temperature of the water temperature control according to the dew point temperature; in this way, the energy efficiency of the compressor refrigeration system is improved, and most importantly, the terminal equipment and the pipeline greatly reduce the production of condensate water, greatly reduce the latent heat of refrigeration, and maximize the improvement of the sensible heat ratio, achieving the effect of energy saving and consumption reduction.

[0031] As can be seen from the above description, the present application provides a dew point evaporation double cold source liquid cooling air conditioning system, which has two different refrigeration modes, calculates the dew point temperature according to the real-time state of the ambient air and automatically adjusts the control temperature, can well adapt to different environments, and significantly saves energy consumption. Taking a data center IDC machine room as an example, the energy efficiency PUE of the data center using a traditional air conditioning system is generally greater than 1.7, and the PUE of the air conditioning system in the present application can be less than 1.3, which significantly reduces energy consumption.

[0032] The scope of protection of the application is not limited by the embodiments set forth above, but is only limited by the claims. Any variation of the application, falling within the purview of this application, is intended to be embraced by the scope of the claims.

Claims

1. A dew point evaporation dual cold source liquid cooling air conditioning system, characterized in that, The compressor circulation system comprises a compressor (1) connected to an outdoor condenser (2) connected to an expansion valve (3) connected to an evaporator (4) connected to the compressor (1); The water circuit heat exchange system comprises an indoor heat exchanger (6) connected to the evaporator (4) through a first pipeline (62), the evaporator (4) being connected to a water tank (7) through a second pipeline (65), the water tank (7) being connected to the indoor heat exchanger (6) through a third pipeline (63), thereby forming a first refrigeration cycle; The indoor heat exchanger (6) is further connected to the water side of the outdoor condenser (2) through a fourth pipeline (61), the water side of the outdoor condenser (2) being connected to the water tank (7) through a fifth pipeline (64), thereby forming a second refrigeration cycle; A pump (5) is arranged on the third pipeline (63); The first refrigeration cycle and the second refrigeration cycle are operated alternatively.

2. The dew-point evaporation dual cold-source liquid cooling air conditioning system according to claim 1, characterized in that, A first control valve (12) is arranged on the first pipeline (62), and a second control valve (11) is arranged on the second pipeline (65); the first control valve (12) and the second control valve (11) are opened or closed simultaneously.

3. The dew-point evaporation dual cold-source liquid cooling air conditioning system according to claim 1, characterized in that, A fourth control valve (14) is arranged on the fourth pipeline (61), and a fifth control valve (13) is arranged on the fifth pipeline (64); the fourth control valve (14) and the fifth control valve (13) are opened or closed simultaneously.

4. The dew-point evaporation dual cold-source liquid cooling air conditioning system according to claim 1, characterized in that, When the ambient temperature is greater than 15℃, the first refrigeration cycle works; when the ambient temperature is less than or equal to 15℃, the second refrigeration cycle works.

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