阅读说明：本技术 制冷系统机组 (Refrigerating system unit ) 是由 潘劲松 秦雨峰 李鹏飞 周晓晓 于 2019-09-24 设计创作，主要内容包括：本发明提供了一种制冷系统机组,用于为数据中心制冷,包括：压缩制冷循环系统,包括第一循环管路和的第一冷凝器,第一冷凝器设置在第一循环管路上；热管制冷循环系统,包括第二循环管路和第二冷凝器,第二冷凝器设置在第二循环管路上；湿膜预冷结构,用于对第二冷凝器和第一冷凝器预冷散热；喷淋循环系统,包括喷淋循环管路和喷淋端头,喷淋端头用于向第二冷凝器和/或湿膜预冷结构喷淋冷却液。本发明解决了现有技术中的用于对数据中心制冷的空调系统不仅存在能效低、制冷性能差的问题,而且受工作环境因素的影响,传统蒸发冷却空调系统的冷凝器处易结垢,从而会导致冷凝器处散热不佳,进而严重影响了制冷系统的正常工作等问题。(The invention provides a refrigerating system unit for refrigerating a data center, which comprises: the compression refrigeration cycle system comprises a first circulation pipeline and a first condenser, wherein the first condenser is arranged on the first circulation pipeline; the heat pipe refrigeration circulating system comprises a second circulating pipeline and a second condenser, and the second condenser is arranged on the second circulating pipeline; the wet film precooling structure is used for precooling and radiating the second condenser and the first condenser; and the spraying circulating system comprises a spraying circulating pipeline and a spraying end head, and the spraying end head is used for spraying cooling liquid to the second condenser and/or the wet film precooling structure. The invention solves the problems that the air-conditioning system for refrigerating the data center in the prior art has low energy efficiency and poor refrigerating performance, and is influenced by working environment factors, and the condenser of the traditional evaporative cooling air-conditioning system is easy to scale, so that the heat dissipation of the condenser is poor, and the normal operation of the refrigerating system is seriously influenced.)

1. A refrigeration system assembly for refrigerating a data center, comprising:

a compression refrigeration cycle system (20), the compression refrigeration cycle system (20) comprising a first circulation line (21) and a first condenser (22), the first condenser (22) being disposed on the first circulation line (21);

a heat pipe refrigeration cycle system (30), the heat pipe refrigeration cycle system (30) comprising a second circulation pipeline (31) and a second condenser (32), the second condenser (32) being disposed on the second circulation pipeline (31);

a wet film pre-cooling structure (40), wherein the wet film pre-cooling structure (40) is positioned outside the second condenser (32) to pre-cool and dissipate heat of the second condenser (32) and the first condenser (22);

spray circulation system (50), spray circulation system (50) including spray circulation pipeline (51) and spray end (52), spray end (52) and set up spray circulation pipeline (51) are last, just second condenser (32) and/or the top of wet film precooling structure (40) is provided with at least one spray end (52), spray end (52) be used for to second condenser (32) and/or wet film precooling structure (40) spray the coolant liquid.

2. The refrigeration system assembly of claim 1, wherein the spray circulation system (50) further comprises a water collection sump structure (53), a spray pump (54) and a flow control valve (55) sequentially disposed on the spray circulation line (51), wherein the water collection sump structure (53) is located below the second condenser (32) and the wet film pre-cooling structure (40) to receive the cooling liquid flowing down therefrom; the spray pump (54) is used for pumping the cooling liquid in the water collecting tank structure (53) to the spray head (52) through the spray circulating pipeline (51), and the flow regulating valve (55) is used for regulating the spray amount of the spray head (52).

3. The refrigeration system assembly of claim 1, wherein the compression refrigeration cycle system (20) further comprises a mounting pedestal (10), the mounting pedestal (10) being disposed outside of the data center; the data center comprises a compressor (23) and a first evaporator (24), wherein the compressor (23) and the first evaporator (24) are arranged on the first circulation pipeline (21), the compressor (23) is installed on the installation base frame (10) and located at the bottom of the first condenser (22), and the first evaporator (24) is arranged inside the data center.

4. The refrigerating system unit according to claim 3, characterized in that the compression refrigeration cycle system (20) further comprises an expansion valve (25), an accumulator (26), an evaporative condenser (27) and a gas-liquid separator (28), wherein the expansion valve (25) and the accumulator (26) are disposed on the first circulation line (21) and sequentially disposed between the first condenser (22) and the first evaporator (24) in a direction away from the first condenser (22), a portion of the first circulation line (21) between the first condenser (22) and the first evaporator (24) and a portion of the first circulation line (21) between the first evaporator (24) and the compressor (23) are passed through the evaporative condenser (27) for heat exchange at the location of the evaporative condenser (27), the gas-liquid separator (28) is provided on the first circulation line (21) between the evaporative condenser (27) and the compressor (23).

5. The refrigeration system unit according to claim 3, wherein the heat pipe refrigeration cycle system (30) further includes a second evaporator (33), the second evaporator (33) is provided on the second cycle pipe (31), and the second evaporator (33) is provided inside the data center; the first evaporators (24) are multiple, the second evaporators (33) are multiple, the first evaporators (24) are arranged in parallel, the second evaporators (33) are arranged in parallel, and the first evaporators (24) and the second evaporators (33) are arranged adjacent to each other in a one-to-one correspondence manner.

6. The refrigeration system assembly of claim 5, wherein the second evaporator (33) is located forward of the first evaporator (24), and wherein the data center return air flows through the second evaporator (33) before flowing through the first evaporator (24).

7. The refrigeration system unit of claim 1, further comprising a mounting pedestal (10), the mounting pedestal (10) being a cubic frame, the mounting pedestal (10) having spaced upper (11) and lower (12) mounting spaces, the first condenser (22), the second condenser (32), and the wet film pre-cooling structure (40) all disposed within the upper mounting space (11),

the two first condensers (22) are connected in parallel, and the two first condensers (22) are oppositely arranged in the width direction of the mounting base frame (10);

the two second condensers (32) are connected in parallel, and the two second condensers (32) are arranged on the outer sides of the two first condensers (22) in a one-to-one correspondence manner in the width direction of the mounting base frame (10);

the number of the wet film precooling structures (40) is two, and the two wet film precooling structures (40) are arranged on the outer sides of the two second condensers (32) in a one-to-one correspondence manner in the width direction of the mounting base frame (10).

8. The refrigerating system unit as recited in claim 7, further comprising a condensing fan (60), wherein the condensing fan (60) is disposed on the mounting pedestal (10) and located above the first condenser (22) and the second condenser (32), air inlet ports are formed on both sides of the mounting pedestal (10) in the width direction, the air inlet ports are located at the position of the upper-layer mounting space (11), and an air outlet port is formed on the top of the condensing fan (60).

9. The refrigeration system unit of claim 8, wherein there are two condensing fans (60), and the two condensing fans (60) are juxtaposed along the length of the mounting pedestal (10).

10. The refrigeration system unit of claim 7, wherein the wet film pre-cooling structure (40) comprises a fixing frame (41) and a wet film body, wherein the fixing frame (41) is detachably connected with the mounting base frame (10), the wet film body is arranged on the fixing frame (41), and the wet film body is a honeycomb structure made of a hydrophilic material.

Technical Field

The invention relates to the technical field of refrigeration, in particular to a refrigerating system unit.

Background

In recent years, the construction of large and medium-sized data centers is rapidly increasing, and enterprises in industries such as finance, communication and petrochemical industry and government institutions need to construct independent data centers. The data center can produce more heat in work, and in order to maintain the normal operation of the data center, the environmental temperature of the data center needs to be accurately controlled, so that the conventional data center needs to be cooled by a refrigerating system to ensure that data equipment stably moves at an ideal working condition temperature.

The conventional air conditioning system for refrigerating the data center adopts a conventional air conditioning refrigeration system, has the problems of low energy efficiency, poor refrigeration performance, high water consumption and the like, and is influenced by working environment factors, and a condenser of the conventional evaporative cooling air conditioning system is easy to scale, so that the heat dissipation of the condenser is poor, and the normal operation of the refrigeration system is seriously influenced.

Disclosure of Invention

The invention mainly aims to provide a refrigerating system unit to solve the problems that an air conditioning system for refrigerating a data center in the prior art is low in energy efficiency and poor in refrigerating performance, and due to the influence of working environment factors, a condenser of a traditional evaporative cooling air conditioning system is prone to scaling, so that heat dissipation at the condenser is poor, normal operation of the refrigerating system is seriously influenced, and the like.

In order to achieve the above object, the present invention provides a refrigeration system unit for refrigerating a data center, including: the compression refrigeration circulating system comprises a first circulating pipeline and a first condenser, and the first condenser is arranged on the first circulating pipeline; the heat pipe refrigeration circulating system comprises a second circulating pipeline and a second condenser, and the second condenser is arranged on the second circulating pipeline; the wet film pre-cooling structure is positioned on the outer side of the second condenser so as to pre-cool and dissipate heat of the second condenser and the first condenser; and the spraying circulating system comprises a spraying circulating pipeline and spraying end heads, the spraying end heads are arranged on the spraying circulating pipeline, at least one spraying end head is arranged above the second condenser and/or the wet film precooling structure, and the spraying end heads are used for spraying cooling liquid to the second condenser and/or the wet film precooling structure.

Further, the spraying circulation system also comprises a water collecting tank structure, a spraying pump and a flow regulating valve which are sequentially arranged on the spraying circulation pipeline, wherein the water collecting tank structure is positioned below the second condenser and the wet film precooling structure so as to receive the cooling liquid flowing down from the second condenser; the spray pump is used for pumping cooling liquid in the water collecting tank structure to the spray end through the spray circulating pipeline, and the flow regulating valve is used for regulating the spray amount of the spray end.

Furthermore, the compression refrigeration cycle system is also provided with a base frame, and the base frame is arranged outside the data center; the system comprises a compressor and a first evaporator, wherein the compressor and the first evaporator are both arranged on a first circulation pipeline, the compressor is installed on an installation base frame and is positioned at the bottom of a first condenser, and the first evaporator is arranged inside a data center.

Furthermore, the compression refrigeration cycle system also comprises an expansion valve, a liquid storage device, an evaporative condenser and a gas-liquid separator, wherein the expansion valve and the liquid storage device are arranged on the first circulation pipeline and are sequentially arranged between the first condenser and the first evaporator along the direction far away from the first condenser, a part of the first circulation pipeline between the first condenser and the first evaporator and a part of the first circulation pipeline between the first evaporator and the compressor flow through the evaporative condenser to perform heat exchange at the position of the evaporative condenser, and the gas-liquid separator is arranged on the first circulation pipeline and is positioned between the evaporative condenser and the compressor.

Further, the heat pipe refrigeration cycle system further comprises a second evaporator, the second evaporator is arranged on the second circulation pipeline, and the second evaporator is arranged inside the data center; the first evaporimeter is a plurality of, and the second evaporimeter is a plurality of, and wherein, a plurality of first evaporimeters are parallelly connected the setting each other, and a plurality of second evaporimeters are parallelly connected the setting each other, and a plurality of first evaporimeters and a plurality of second evaporimeters one-to-one ground adjacent setting.

Further, a second evaporator is located in front of the first evaporator, and the data center return air flows through the second evaporator and then flows through the first evaporator.

The refrigerating system unit further comprises an installation base frame, the installation base frame is a cubic frame and is provided with an upper installation space and a lower installation space which are spaced, and the first condenser, the second condenser and the wet film precooling structure are arranged in the upper installation space, wherein the first condensers are connected in parallel, and the two first condensers are oppositely arranged in the width direction of the installation base frame; the two second condensers are connected in parallel, and are arranged on the outer sides of the two first condensers in a one-to-one correspondence manner in the width direction of the mounting base frame; the two wet film precooling structures are arranged on the outer sides of the two second condensers in a one-to-one correspondence manner in the width direction of the mounting base frame.

Further, the refrigerating system unit further comprises a condensation fan, the condensation fan is arranged on the installation base frame and located above the first condenser and the second condenser, air inlet ports are formed in the two sides of the width direction of the installation base frame, the air inlet ports are located in the position of the upper installation space, and air outlet ports are formed in the top of the condensation fan.

Furthermore, the number of the condensation fans is two, and the two condensation fans are arranged in parallel along the length direction of the installation base frame.

Further, wet membrane precooling structure includes fixed frame and wet membrane body, and wherein, fixed frame and installation bed frame detachably are connected, and the wet membrane body sets up on fixed frame, and the wet membrane body is the honeycomb structure of being made by hydrophilic material.

By applying the technical scheme of the invention, the refrigeration system unit for refrigerating and cooling the data center is provided, and comprises two independent circulating refrigeration systems of a compression refrigeration circulating system and a heat pipe refrigeration circulating system, so that the refrigeration and cooling effects on the data center are greatly improved; and the compression refrigeration circulating system adopts mechanical compression refrigeration, the heat pipe refrigeration circulating system adopts heat pipe heat dissipation refrigeration, the two are in high-efficiency cooperation and overlap the evaporative cooling technology, and the energy efficiency of the refrigeration system unit is effectively improved.

In addition, the wet film precooling structure arranged on the mounting base frame and positioned at the outer side of the second condenser is utilized, precooling and heat dissipation of the first condenser and the second condenser can be achieved, and certain heat released by the first condenser and the second condenser can be taken away; particularly, the spraying end of the spraying circulating system can spray cooling liquid to the second condenser and/or the wet film precooling structure, the evaporation of the cooling liquid on the second condenser and/or the wet film precooling structure can absorb the heat generated at the first condenser and the second condenser, and the heat dissipation mode has the characteristics of high efficiency and environmental protection.

Moreover, because the heat pipe refrigeration cycle system utilizes the phase change gravity circulation flow of the refrigerant in the second circulation pipeline, the temperature and the pressure condensation heat exchange of the refrigerant are not forcibly improved by the outside, so the temperature at the second condenser is usually not too high and is usually between 25 ℃ and 30 ℃, and the surface scaling phenomenon of the second condenser can not occur when the cooling liquid is sprayed on the second condenser, thereby ensuring the stable work of a refrigerating system unit.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 illustrates a schematic block diagram of a refrigeration system unit according to an alternative embodiment of the present invention;

fig. 2 shows a schematic diagram of the structure and operation of the refrigeration system unit of fig. 1.

Wherein the figures include the following reference numerals:

10. mounting a base frame; 11. an upper layer installation space; 12. a lower layer installation space; 20. a compression refrigeration cycle system; 21. a first circulation line; 22. a first condenser; 23. a compressor; 24. a first evaporator; 25. an expansion valve; 26. a reservoir; 27. an evaporative condenser; 28. a gas-liquid separator; 30. a heat pipe refrigeration cycle system; 31. a second circulation line; 32. a second condenser; 33. a second evaporator; 40. a wet film pre-cooling structure; 41. a fixed frame; 50. a spray circulation system; 51. a spray circulation pipeline; 52. spraying an end socket; 53. a water collection tank structure; 54. a spray pump; 55. a flow regulating valve; 60. and a condensing fan.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a refrigerating system unit, aiming at solving the problems that an air conditioning system for refrigerating a data center in the prior art is low in energy efficiency and poor in refrigerating performance, is influenced by working environment factors, and is easy to scale at a condenser of a traditional evaporative cooling air conditioning system, so that the heat dissipation of the condenser is poor, the normal operation of the refrigerating system is seriously influenced, and the like.

As shown in fig. 1 and 2, the refrigeration system unit is used for refrigerating a data center, and includes a mounting pedestal 10, a compression refrigeration cycle system 20, a heat pipe refrigeration cycle system 30, a wet film pre-cooling structure 40, and a spray cycle system 50, where the mounting pedestal 10 is disposed outside the data center, the compression refrigeration cycle system 20 includes a first circulation pipeline 21 and a first condenser 22, the first condenser 22 is disposed on the first circulation pipeline 21 and is mounted on the mounting pedestal 10, the heat pipe refrigeration cycle system 30 includes a second circulation pipeline 31 and a second condenser 32, the second condenser 32 is disposed on the second circulation pipeline 31 and is mounted on the mounting pedestal 10, the wet film pre-cooling structure 40 is disposed on the mounting pedestal 10 and is located outside the second condenser 32 to pre-cool and dissipate heat of the second condenser 32 and the first condenser 22, the spray cycle system 50 includes a spray circulation pipeline 51 and a spray tip 52, the spray header 52 is disposed on the spray circulation line 51, and at least one spray header 52 is disposed above the second condenser 32 and/or the wet film pre-cooling structure 40, and the spray header 52 is used for spraying the cooling liquid to the second condenser 32 and/or the wet film pre-cooling structure 40.

The refrigerating system unit comprises two sets of independently circulating refrigerating systems of a compression refrigerating cycle system 20 and a heat pipe refrigerating cycle system 30, so that the comprehensive energy efficiency of the refrigerating system unit of the data center is greatly improved; and the compression refrigeration cycle system 20 adopts mechanical compression refrigeration, the heat pipe refrigeration cycle system 30 adopts heat pipe heat dissipation refrigeration, and the two are in high-efficiency cooperation and are superposed with an evaporative cooling technology, so that the energy efficiency of the refrigeration system unit is effectively improved.

In addition, the wet film pre-cooling structure 40 arranged on the mounting pedestal 10 and located outside the second condenser 32 can pre-cool and dissipate heat of the first condenser 22 and the second condenser 32 to take away certain heat released by the first condenser 22 and the second condenser 32; specifically, the spray header 52 of the spray circulation system 50 can spray the cooling liquid onto the second condenser 32 and/or the wet film pre-cooling structure 40, and the evaporation of the cooling liquid on the second condenser 32 and/or the wet film pre-cooling structure 40 can absorb the heat generated at the first condenser 22 and the second condenser 32, so that the heat dissipation method has the characteristics of high efficiency, environmental protection and low water consumption.

Moreover, since the heat pipe refrigeration cycle system 30 circulates and flows by utilizing the phase change gravity of the refrigerant in the second circulation pipeline 31, there is no external forcing to increase the temperature and pressure of the refrigerant for condensation and heat exchange, and therefore, the temperature at the second condenser is usually not too high, usually between 25 ℃ and 30 ℃, and thus, the surface scaling phenomenon of the second condenser 32 can not occur when the cooling liquid is sprayed on the second condenser 32, and the stable operation of the refrigeration system unit is ensured.

As shown in fig. 2, the spray circulation system 50 further comprises a water collection tank structure 53, a spray pump 54 and a flow control valve 55, which are sequentially disposed on the spray circulation pipeline 51, wherein the water collection tank structure 53 is mounted on the mounting base frame 10 and located below the second condenser 32 and the wet film pre-cooling structure 40 to receive the cooling liquid flowing down therefrom; the spray pump 54 is used for pumping the cooling liquid in the water collecting tank structure 53 to the spray header 52 through the spray circulating pipeline 51, and the flow regulating valve 55 is used for regulating the spray amount of the spray header 52. Thus, the spraying circulation system 50 pumps the cooling liquid circularly, so that the spraying circulation system 50 has the performance of saving the cooling liquid; and when the cooling liquid flows through the second condenser 32, the heat at the second condenser 32 can be taken away, meanwhile, the cooling liquid can also be attached to the wet film pre-cooling structure 40, and the evaporation of the cooling liquid attached to the wet film pre-cooling structure 40 can also take away the heat, so that the cooling of the first condenser 22 and the second condenser 32 is realized.

It should be noted that the spray circulation system 50 may perform the functions of filtering and purifying air when used in an area with poor outdoor air quality. For controlling the spraying amount of the spraying circulation system 50, the rotation speed of the spraying pump 54 and the opening degree of the flow rate adjusting valve 55 are controlled by comparing temperature and humidity sensors T0 and T1 at the inlet and outlet of the spraying circulation system 50 with a set value T.

Optionally, the cooling liquid is water, it should be noted that the water collecting tank structure 53 is communicated with a liquid replenishing device, a ball float valve is arranged in the water collecting tank structure 53, and when the liquid level in the water collecting tank structure 53 is lower than a preset value, the spraying circulation system 50 can automatically replenish water to the water collecting tank structure 53 by controlling the liquid replenishing device.

As shown in fig. 1 and 2, in order to realize efficient and stable operation of the compression refrigeration cycle system 20 and ensure a refrigeration effect for refrigerating the data center, the compression refrigeration cycle system 20 further includes a compressor 23 and a first evaporator 24, the compressor 23 and the first evaporator 24 are both disposed on the first circulation pipe 21, the compressor 23 is mounted on the mounting base frame 10 and is located at the bottom of the first condenser 22, and the first evaporator 24 is disposed inside the data center.

As shown in fig. 2, in order to ensure the functional integrity of the compression refrigeration cycle system 20, the compression refrigeration cycle system 20 further includes an expansion valve 25, an accumulator 26, an evaporative condenser 27, and a gas-liquid separator 28, wherein the expansion valve 25 and the accumulator 26 are disposed on the first circulation line 21 and are sequentially disposed between the first condenser 22 and the first evaporator 24 in a direction away from the first condenser 22, both a portion of the first circulation line 21 between the first condenser 22 and the first evaporator 24 and a portion of the first circulation line 21 between the first evaporator 24 and the compressor 23 flow through the evaporative condenser 27 to perform heat exchange at the position of the evaporative condenser 27, and the gas-liquid separator 28 is disposed on the first circulation line 21 and is located between the evaporative condenser 27 and the compressor 23. In this way, the evaporative condenser 27 further reuses heat of the refrigerant flowing in the first circulation line 21, which is beneficial to reducing the overall energy consumption of the refrigeration system unit and fully utilizing energy.

As shown in fig. 2, in order to ensure the structural integrity of the heat pipe refrigeration cycle system 30 to ensure stable operation thereof, the heat pipe refrigeration cycle system 30 further includes a second evaporator 33, the second evaporator 33 is disposed on the second circulation line 31, and the second evaporator 33 is disposed inside the data center; the number of the first evaporators 24 is plural, the number of the second evaporators 33 is plural, wherein the plural first evaporators 24 are arranged in parallel with each other, the plural second evaporators 33 are arranged in parallel with each other, and the plural first evaporators 24 and the plural second evaporators 33 are adjacently arranged in a one-to-one correspondence.

In the heat pipe refrigeration cycle 30 of the present application, the refrigerant flowing through the second circulation line 31 is driven to flow by its own weight and temperature gradient, and in the present application, the second condenser 32 is higher than the second evaporator 33.

In the present application, as shown in fig. 1, the mounting base frame 10 is a cubic frame, the mounting base frame 10 has an upper mounting space 11 and a lower mounting space 12 which are spaced apart from each other, and the first condenser 22, the second condenser 32 and the wet film pre-cooling structure 40 are all disposed in the upper mounting space 11, wherein the first condensers 22 are two in parallel, and the two first condensers 22 are disposed opposite to each other in the width direction of the mounting base frame 10; the two second condensers 32 are connected in parallel, and the two second condensers 32 are arranged outside the two first condensers 22 in a one-to-one correspondence manner in the width direction of the pedestal 10; the number of the wet film pre-cooling structures 40 is two, and the two wet film pre-cooling structures 40 are arranged outside the two second condensers 32 in a one-to-one correspondence manner in the width direction of the mounting base frame 10.

It should be noted that, in order to ensure the compactness of the refrigeration system unit, most components of the compression refrigeration cycle system 20, such as the compressor 23, the expansion valve 25, the accumulator 26, the evaporative condenser 27, the gas-liquid separator 28, and a part of the first circulation line 21, are disposed in the lower installation space 12.

As shown in fig. 1, the two first condensers 22 are arranged in a V shape, and the openings of the two first condensers 22 arranged in a V shape are located above. Like this, upper installation space 11 and lower floor's installation space 12 can form open structure in two first condenser 22's outside bottom position department for dodge first circulation pipeline 21, be favorable to being connected of first circulation pipeline 21 and first condenser 22, and second circulation pipeline 31 and second condenser 32's connection, promoted the overall structure rationality of refrigerating system unit.

As shown in fig. 1 and 2, the refrigeration system unit further includes a condensing fan 60, the condensing fan 60 is disposed on the mounting base frame 10 and located above the first condenser 22 and the second condenser 32, air inlet ports are formed on two sides of the mounting base frame 10 in the width direction, the air inlet ports are located at the upper-layer mounting space 11, and an air outlet port is formed at the top of the condensing fan 60. The setting of condensing fan 60 can play the precooling radiating effect to first condenser 22 and second condenser 32 equally, that is to say, wind is from the in-process that the air inlet port flows to the air-out port, can compellingly pass through wet membrane precooling structure 40 in proper order, second condenser 32 and first condenser 22, certain heat can be taken away in this application when wind flows through above-mentioned three part, more importantly, the flow of wind can accelerate the evaporation rate of the coolant liquid that is sprayed by spray circulation system 50 on wet membrane precooling structure 40 and the second condenser 32, thereby the heat dissipation cooling effect to both has been promoted effectively.

It should be further noted that the refrigeration system unit further includes a pressure difference detection module, the positions of the air inlet port and the air outlet port are both provided with the pressure difference detection module, and the pressure at the air inlet port and the air outlet port can be detected by the pressure difference detection module, so that the refrigeration system unit can automatically determine the dirty and blocked condition of the wet film pre-cooling structure 40 and feed back information, and thus, maintenance personnel can timely find and clean the wet film pre-cooling structure 40. Specifically, for the control of the spray amount of the spray circulation system 50: the filth blockage condition of the spraying circulation system 50 is judged according to the difference delta P between the pressure sensor P1 at the air inlet port and the pressure sensor P2 at the air outlet port, when the delta P is increased, the spraying amount of the spraying circulation system 50 is increased, so that the flow of the cooling liquid on the surface of the spraying filler (namely the surface of the wet film body) of the wet film precooling structure 40 is enhanced, the flushing effect on the wet film precooling structure 40 is improved, and the filth blockage phenomenon of the wet film precooling structure 40 is relieved.

In addition, the refrigerating system unit of this application has filth stifled alarming function: when the difference value delta P between the pressure sensor P1 at the air inlet port and the pressure sensor P2 at the air outlet port is higher than a set value, the refrigerating system unit automatically feeds back signals to the monitoring system of the refrigerating system unit, so that maintenance personnel can maintain the refrigerating system unit in time, and equipment faults of the refrigerating system unit caused by untimely maintenance are avoided.

In the preferred embodiment of the present application, as shown in fig. 1, in order to ensure the heat dissipation effect to the heat accumulated in the upper installation space 11, two condensing fans 60 are provided, and the two condensing fans 60 are juxtaposed in the length direction of the installation base frame 10.

As shown in fig. 1, the wet film pre-cooling structure 40 includes a fixing frame 41 and a wet film body, wherein the fixing frame 41 is detachably connected to the mounting base frame 10, the wet film body is disposed on the fixing frame 41, and the wet film body is a honeycomb structure made of a hydrophilic material. Thus, the wet film pre-cooling structure 40 is convenient to mount or dismount so as to replace the wet film body; in addition, the wet film body in the above structure greatly increases the overall surface area of the wet film body, thereby being beneficial to increasing the amount of the cooling liquid attached to the surface of the wet film body, improving the evaporation effect of the wet film pre-cooling structure 40 on the cooling liquid, and further improving the pre-cooling heat dissipation effect of the wet film pre-cooling structure 40 on the first condenser 22 and the second condenser 32.

Preferably, the wet film body is made of plastic.

That is to say, the refrigeration system unit of the present application employs a dual cooling evaporation technology, firstly, the wet film pre-cooling structure 40, the second condenser 32 and the first condenser 22 are cooled by unified air cooling through the condensing fan 60; secondly, the second condenser 32 and/or the wet film pre-cooling structure 40 of the heat pipe refrigeration cycle system 30 are cooled by spraying through the spraying cycle system 50.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.