CN215675580U - Indirect evaporative cooling air-conditioning system with efficient centralized cold source - Google Patents
Indirect evaporative cooling air-conditioning system with efficient centralized cold source Download PDFInfo
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- CN215675580U CN215675580U CN202122055309.9U CN202122055309U CN215675580U CN 215675580 U CN215675580 U CN 215675580U CN 202122055309 U CN202122055309 U CN 202122055309U CN 215675580 U CN215675580 U CN 215675580U
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Abstract
The utility model provides an indirect evaporative cooling air-conditioning system with a high-efficiency centralized cold source, which is characterized in that a plurality of indirect evaporative cooling air-conditioners are respectively connected through an integrated external unit, and the integrated external unit at least comprises a heat exchanger, an evaporative condenser or a cooling tower, an indoor air feeder and an outdoor side fan, wherein the evaporative condenser or the cooling tower is matched with the heat exchanger; the evaporative condenser or the cooling tower end is also provided with a compressor and a fluorine pump, and the energy efficiency of the air conditioning system and the integral IT power utilization efficiency of the data center are effectively improved through one-to-many assembly of the integrated external unit, the overall size of the indirect evaporative cooling air conditioning unit is reduced, and the building adaptability of the indirect evaporative cooling air conditioning unit is enhanced.
Description
Technical Field
The utility model relates to the technical field of heating ventilation air-conditioning systems, in particular to an efficient concentrated cold source indirect evaporative cooling air-conditioning system.
Background
The indirect evaporative cooling air conditioner for the data center becomes an industrial hotspot and is widely used, and the working principle is as follows: the heat exchanger for isolating air from air is used for isolating the air in the machine room from the outdoor air, so that the outdoor dirty air is not mixed into the machine room as long as the cold energy of the outdoor air is used; meanwhile, in a transition season, water is sprayed outside the chamber of the heat exchanger, the heat exchange quantity is increased by utilizing the principle that evaporation latent heat is taken away by water evaporation, and the duration of natural cooling is prolonged. However, as the outdoor air temperature increases, the relative humidity of the air increases, and the natural cooling capacity from the outdoor air gradually attenuates, failing to satisfy the thermal load of the server in the machine room. In general, a direct expansion (DX) compressor system is installed in an air conditioner, an evaporator is placed downstream of an indoor side of a heat exchanger, a condenser is placed downstream of an outdoor side of the heat exchanger to perform supplementary cooling, and a scroll compressor is generally used as a compressor. Because the efficiency of the scroll compressor is low, the condenser is cooled by air, and the inlet air of the condenser is heated by the heat exchanger to cause the condensation temperature to rise, the whole energy utilization efficiency of the condenser is low; in extreme hot and humid weather (especially in south China where the weather is hot), more power consumption (namely peak power consumption) needs to be occupied, the power consumption efficiency of the data center IT is influenced, and the construction economy of the data center is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem of large refrigeration energy consumption of a data center and cater to the future development direction of a green data center, a high-efficiency concentrated cold source indirect evaporative cooling air-conditioning system is provided, a compressor and a condenser are eliminated from an indirect evaporative cooling air-conditioning system and are additionally arranged at an external machine end, the original condenser is replaced by direct outdoor air evaporative condensation, and a fluorine pump is additionally arranged in the external machine system, so that the natural cooling effect is enhanced, a cold supplementing source is centralized, one external machine corresponds to a plurality of indirect evaporative cooling air-conditioners, the energy efficiency of the system is greatly improved, the peak power consumption of the air-conditioners is reduced, and the integral IT power utilization efficiency of the data center is improved.
The purpose of the utility model can be realized by the following technical scheme:
an efficient concentrated cold source indirect evaporative cooling air conditioning system comprising:
the integrated outdoor unit is arranged at any position outside the machine room and is simultaneously communicated with the plurality of indirect evaporative cooling air conditioners; the integrated outdoor unit is provided with an indoor side airflow channel and an outdoor side airflow channel; the indoor side airflow channel is sequentially provided with a first cavity of a heat exchanger, a second cavity of the heat exchanger, an evaporative condenser or a cooling tower and an indoor blower; the outdoor side airflow channel is sequentially provided with a heat exchanger third cavity, a heat exchanger fourth cavity, a spraying device and an outdoor side fan, wherein the spraying device and the outdoor side fan are arranged outside the heat exchanger fourth cavity; the humidifying water tank and the circulating water pump are arranged on the outer side of the third cavity of the heat exchanger.
Wherein, evaporative condenser still includes:
preferably, a single evaporation sheet P provided in said evaporative condenser 3; and a refrigerant inlet pipe 11 and a refrigerant outlet pipe 12 respectively connected with the refrigerant inlet and outlet ends of the evaporative condenser 3;
the compressor Y is arranged on the refrigerant inlet pipe 11, and the inlet pipe one-way valve K is connected with the compressor Y in parallel;
and a fluorine pump F arranged on the refrigerant outlet pipe 12; and an outlet check valve K' connected in parallel with the fluorine pump F.
Preferably, the evaporator comprises a refrigerant inlet pipe and a refrigerant outlet pipe, and the refrigerant inlet pipe and the refrigerant outlet pipe are respectively connected with the refrigerant inlet and outlet ends of the evaporator condenser.
The compressor is arranged on any refrigerant inlet pipe, and the inlet pipe check valve pipeline is connected with the compressor in parallel.
And a fluorine pump arranged on any refrigerant outlet pipe; and an outlet check valve pipeline connected in parallel with the fluorine pump.
Wherein, the evaporative condenser with indoor forced draught blower is connected.
Preferably, the evaporative condenser is a dry condenser, but is not limited thereto.
Preferably, the cooling tower further comprises:
the compressor is arranged on the refrigerant inlet pipe, and the inlet pipe one-way valve pipeline is connected with the compressor in parallel; the refrigerant inlet pipe is connected to the inlet end of the cooling tower after flowing through the water-cooling condensing heat exchanger;
the outlet end of the cooling tower is connected with a refrigerant outlet pipe, is connected with a fluorine pump through the water-cooling condensation heat exchanger, and is connected with an outlet pipe one-way valve pipeline in parallel connection with the fluorine pump.
And a water pump is arranged on a refrigerant outlet pipe between the outlet end of the cooling tower and the water-cooling condensing heat exchanger.
Wherein the cooling tower is connected with the indoor blower.
Preferably, the compressor is a centrifugal compressor or a screw compressor, but is not limited thereto.
Preferably, the first cavity of the heat exchanger, the second cavity of the heat exchanger, the third cavity of the heat exchanger and the fourth cavity of the heat exchanger are all arranged in the shell of the heat exchanger, the first cavity of the heat exchanger and the second cavity of the heat exchanger are distributed in bilateral symmetry and are communicated with each other in the middle, and the third cavity of the heat exchanger and the fourth cavity of the heat exchanger are staggered with each other and are distributed in an upper-lower symmetric manner and are communicated with each other in the middle.
In summary, the present invention provides an indirect evaporative cooling air conditioning system with a high-efficiency centralized cold source, which is characterized in that an integrated outdoor unit is respectively connected to a plurality of indirect evaporative cooling air conditioners, and specifically, the integrated outdoor unit at least comprises a heat exchanger, an evaporative condenser or a cooling tower installed in cooperation with the heat exchanger, an indoor blower and an outdoor side fan; the evaporative condenser or the cooling tower is also provided with a compressor and a fluorine pump, and the energy efficiency of the air conditioning system and the integral IT power utilization efficiency of the data center are effectively improved by assembling the integrated outdoor units in a one-to-many manner, the overall size of the indirect evaporative cooling air conditioning unit is reduced, and the building adaptability of the indirect evaporative cooling air conditioning unit is enhanced.
Drawings
Fig. 1 is a schematic view of an indirect evaporative cooling air conditioning system with a high-efficiency centralized cold source according to the present invention.
Fig. 2 is a schematic view of an integrated outdoor unit according to the present invention.
Fig. 3 is a schematic view of an evaporative condenser according to the present invention.
Fig. 4 is a schematic diagram of an integrated outdoor unit employing a dual evaporative sheet evaporative condenser.
Fig. 5 is a schematic diagram of an indirect evaporative cooling air conditioning system with a high-efficiency centralized cold source using a double-evaporation-sheet evaporative condenser.
Fig. 6 is a schematic diagram of an evaporative condenser employing dual evaporation sheets.
FIG. 7 is a schematic view of a cooling tower according to the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, 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. 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.
As shown in fig. 1, in the indirect evaporative cooling air conditioning system with a high-efficiency centralized cold source, the integrated outdoor unit is communicated with a plurality of indirect evaporative cooling air conditioners, so that the centralized supply of the cooling capacity of the plurality of indirect evaporative cooling air conditioners in a machine room is realized, and the overall IT electricity utilization efficiency of a data center is improved.
As shown in fig. 2, the integrated outdoor unit is shown, wherein 1 is a first cavity of a heat exchanger; 2-a second cavity of the heat exchanger; 3-an evaporative condenser; 4-a cooling tower; 5-indoor blower; 6-heat exchanger third cavity; 7-a fourth cavity of the heat exchanger; 8-a spraying device; 9-outdoor side fan; 10-a heat exchanger; 11-refrigerant inlet pipe; 12-refrigerant outlet pipe; 13-a humidifying water tank; 14-circulating water pump.
The integrated outdoor unit is arranged at any position outside the machine room and is simultaneously communicated with the plurality of indirect evaporative cooling air conditioners.
Preferably, the integrated outdoor unit is provided with an indoor side airflow channel and an outdoor side airflow channel; the indoor side airflow channel is sequentially provided with a heat exchanger first cavity 1, a heat exchanger second cavity 2, an evaporative condenser 3 or a cooling tower 4 and an indoor blower 5; the outdoor side air flow channel is sequentially provided with a heat exchanger third cavity 6, a heat exchanger fourth cavity 7, a spraying device 8 and an outdoor side fan 9, wherein the spraying device 8 and the outdoor side fan are arranged on the outer side of the heat exchanger fourth cavity 7.
The setting is at humidification water tank 13 and circulating water pump 14 in the heat exchanger third cavity 6 outside, and wherein, circulating water pump 14 sets up in humidification water tank 13, sprays the humidification for the air in the heat exchanger third cavity 6 outside through circulating water pump 14 to ensure that the air that gets into in the heat exchanger third cavity 6 cools down, ensure to have enough low heat energy to carry out the heat transfer, and then take away the heat of equipment in the computer lab, discharge to the atmosphere in. The shower water not absorbed by the outdoor air is collected into the humidifying water tank 13 again by gravity to realize the recycling of the shower water, and preferably, the humidifying water tank 13 is provided with an automatic water replenishing device.
The hot return air of the machine room data center enters an inner airflow channel of the indirect evaporative cooling air conditioning unit, exchanges heat with the third cavity 6 and the fourth cavity 7 of the heat exchanger in the first cavity 1 and the second cavity 2 of the heat exchanger, and the cooled hot return air of the machine room is sent back to the machine room through the indoor air feeder 5.
As shown in fig. 3, the evaporative condenser 3 further includes:
a single-chip evaporation sheet P provided in the evaporative condenser 3; and a refrigerant inlet pipe 11 and a refrigerant outlet pipe 12 respectively connected with the refrigerant inlet and outlet ends of the evaporative condenser 3;
the compressor Y is arranged on the refrigerant inlet pipe 11, and the inlet pipe one-way valve K pipeline is connected with the compressor in parallel;
and a fluorine pump F arranged on the refrigerant outlet pipe 12; and an outlet check valve K' pipeline connected with the fluorine pump in parallel.
Another preferred embodiment, as shown in fig. 4-6, includes: 15-refrigerant outlet pipe, 16-refrigerant inlet pipe; the evaporative condenser 3 further includes:
and the double evaporation sheets M1 and M2 are arranged in the evaporative condenser 3, wherein the evaporation sheet M1 is connected with the refrigerant inlet pipe 11 and the refrigerant outlet pipe 12, and the evaporation sheet M2 is connected with the refrigerant inlet pipe 16 and the refrigerant outlet pipe 15.
And compressors Y1 and Y2 which are distributed on any one of the refrigerant inlet pipe 11 and the refrigerant inlet pipe 16, and inlet pipe one-way valves K1 and K2 pipelines which are respectively connected with the compressors Y1 and Y2 in parallel.
And fluorine pumps F1 and F2 respectively arranged on any one of the refrigerant outlet pipes 12 and 15; and an outlet check valve K3 pipeline and an outlet check valve K4 pipeline which are respectively connected with the fluorine pumps F1 and F2 in parallel.
Wherein the evaporative condenser 3 is connected to the indoor blower 5 through vents Q1 and Q2.
Preferably, the evaporative condenser 3 is a dry condenser, but is not limited thereto.
Preferably, as shown in fig. 7. The cooling tower 4 further includes:
a compressor Y3 arranged on the refrigerant inlet pipe 11, and a pipe inlet check valve K5 pipeline connected with the compressor Y3 in parallel; the refrigerant inlet pipe 11 is connected to the inlet end of the cooling tower after flowing through the water-cooled condensing heat exchanger G;
the outlet end of the cooling tower is connected with a refrigerant outlet pipe 12, is connected with a fluorine pump F3 through the water-cooling condensing heat exchanger, and is connected with an outlet pipe one-way valve K6 pipeline which is connected with the fluorine pump F3 in parallel.
Further, a water pump S is arranged on a refrigerant outlet pipe 12 between the outlet end of the cooling tower and the water-cooling condensing heat exchanger G.
Wherein the cooling tower 4 is connected to the indoor blower 5.
Preferably, the compressor is a centrifugal compressor or a screw compressor, but is not limited thereto.
The heat exchanger comprises a heat exchanger first cavity 1, a heat exchanger second cavity 2, a heat exchanger third cavity 6 and a heat exchanger fourth cavity 7 which are all arranged in a shell of a heat exchanger 10, wherein the heat exchanger first cavity 1 and the heat exchanger second cavity 2 are symmetrically distributed in the left-right direction and are communicated in the middle, and the heat exchanger third cavity 6 and the heat exchanger fourth cavity 7 are arranged in a staggered mode and are symmetrically distributed in the upper-lower direction and are communicated in the middle.
The high-efficiency concentrated cold source indirect evaporative cooling air conditioning system provided by the utility model replaces a compressor system with low distribution efficiency, improves the air conditioning energy efficiency, reduces the maximum peak value air conditioning power consumption, and improves the overall output efficiency of a data center.
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the utility model, and the appended claims are intended to cover such modifications and equivalents as fall within the true spirit and scope of the utility model.
Claims (10)
1. The utility model provides an indirect evaporative cooling air conditioning system of cold source is concentrated to high efficiency which characterized in that includes:
the integrated outdoor unit is arranged outside the machine room and is simultaneously communicated with the plurality of indirect evaporative cooling air conditioners; the integrated outdoor unit is provided with an indoor side airflow channel and an outdoor side airflow channel; the indoor side airflow channel is sequentially provided with a heat exchanger first cavity (1), a heat exchanger second cavity (2), an evaporative condenser (3) or a cooling tower (4) and an indoor blower (5); the outdoor side air flow channel is sequentially provided with a heat exchanger third cavity (6), a heat exchanger fourth cavity (7), a spraying device (8) and an outdoor side fan (9) which are arranged outside the heat exchanger fourth cavity (7); a humidifying water tank (13) and a circulating water pump (14) which are arranged outside the third cavity (6) of the heat exchanger.
2. The indirect evaporative cooling air conditioning system with a high efficiency concentrated cold source as claimed in claim 1, wherein the evaporative condenser (3) further comprises:
a single-chip evaporation sheet P provided in the evaporative condenser (3); and a refrigerant inlet pipe (11) and a refrigerant outlet pipe (12) which are respectively connected with the refrigerant inlet and outlet ends of the evaporative condenser (3);
the compressor Y is arranged on the refrigerant inlet pipe (11), and the inlet pipe one-way valve K is connected with the compressor Y in parallel;
and a fluorine pump F arranged on the refrigerant outlet pipe (12); and an outlet check valve K' connected in parallel with the fluorine pump F.
3. The indirect evaporative cooling air conditioning system with high efficiency and concentrated cold source as claimed in claim 1, wherein the evaporative condenser (3) further comprises:
a double evaporation sheet provided in the evaporative condenser (3), the double evaporation sheet including an evaporation sheet M1 and an evaporation sheet M2; the evaporation sheet M1 is connected with a refrigerant inlet pipe (11) and a refrigerant outlet pipe (12), and the evaporation sheet M2 is connected with a refrigerant inlet pipe (16) and a refrigerant outlet pipe (15);
the refrigerant inlet pipe (11) and the refrigerant inlet pipe (16) are respectively provided with a compressor Y1 and a compressor Y2;
the refrigerant outlet pipe (12) and the refrigerant outlet pipe (15) are respectively provided with a fluorine pump F1 and a fluorine pump F2
And a pipe inlet check valve K1 and a pipe inlet check valve K2 connected in parallel with the compressors Y1 and Y2, respectively.
And an outlet check valve K3 and an outlet check valve K4 connected in parallel with the fluorine pump F1 and the fluorine pump F2, respectively.
4. The indirect evaporative cooling air conditioning system with high efficiency concentrated cold source as claimed in claim 2 or 3, wherein the evaporative condenser (3) is connected with the indoor blower (5).
5. The indirect evaporative cooling air conditioning system with high efficiency and concentrated cooling source as claimed in claim 4, wherein the evaporative condenser (3) is a dry condenser.
6. The indirect evaporative cooling air conditioning system with a high efficiency concentrated cold source as claimed in claim 1, wherein the cooling tower (4) further comprises:
the compressor is arranged on the refrigerant inlet pipe (11), and the inlet pipe one-way valve pipeline is connected with the compressor in parallel; the refrigerant inlet pipe (11) flows through the water-cooling condensing heat exchanger and then is connected to the inlet end of the cooling tower;
the outlet end of the cooling tower is connected with a refrigerant outlet pipe (12), is connected with the fluorine pump through the water-cooling condensation heat exchanger, and is connected with an outlet pipe one-way valve pipeline in parallel connection with the fluorine pump.
7. The indirect evaporative cooling air conditioning system with the efficient centralized cold source as claimed in claim 6, wherein a water pump is arranged on a refrigerant outlet pipe (12) between the outlet end of the cooling tower and the water-cooled condensing heat exchanger.
8. The indirect evaporative cooling air conditioning system with high efficiency concentrated cold source as claimed in claim 6, wherein the cooling tower (4) is connected with the indoor blower (5).
9. The indirect evaporative cooling air conditioning system as recited in claim 2, 3 or 6 wherein the compressor is a centrifugal compressor or a screw compressor.
10. The indirect evaporative cooling air conditioning system with the high-efficiency centralized cold source as claimed in claim 1, wherein the first cavity (1) of the heat exchanger, the second cavity (2) of the heat exchanger, the third cavity (6) of the heat exchanger and the fourth cavity (7) of the heat exchanger are all arranged in the shell of the heat exchanger (10), the first cavity (1) of the heat exchanger and the second cavity (2) of the heat exchanger are symmetrically distributed in the left and right directions and are communicated with each other in the middle, and the third cavity (6) of the heat exchanger and the fourth cavity (7) of the heat exchanger are staggered with the first cavity (1) of the heat exchanger and the second cavity (2) of the heat exchanger and are symmetrically distributed in the upper and lower directions and are communicated with each other in the middle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122055309.9U CN215675580U (en) | 2021-08-27 | 2021-08-27 | Indirect evaporative cooling air-conditioning system with efficient centralized cold source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122055309.9U CN215675580U (en) | 2021-08-27 | 2021-08-27 | Indirect evaporative cooling air-conditioning system with efficient centralized cold source |
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| Publication Number | Publication Date |
|---|---|
| CN215675580U true CN215675580U (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122055309.9U Active CN215675580U (en) | 2021-08-27 | 2021-08-27 | Indirect evaporative cooling air-conditioning system with efficient centralized cold source |
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| CN (1) | CN215675580U (en) |
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- 2021-08-27 CN CN202122055309.9U patent/CN215675580U/en active Active
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