CN209840328U - Double-cold evaporative cooling-condensation integrated air conditioning unit for data center machine room - Google Patents
Double-cold evaporative cooling-condensation integrated air conditioning unit for data center machine room Download PDFInfo
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- CN209840328U CN209840328U CN201920235473.8U CN201920235473U CN209840328U CN 209840328 U CN209840328 U CN 209840328U CN 201920235473 U CN201920235473 U CN 201920235473U CN 209840328 U CN209840328 U CN 209840328U
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Abstract
The utility model discloses a two cold evaporative cooling-condensation integration air conditioning unit of data center computer lab, including organizing the casing, be provided with mechanical refrigeration unit in the unit casing, mechanical refrigeration unit one side has still set gradually and has imitated filter, indirect evaporative cooling unit of board pipe, evaporimeter, direct evaporative cooling unit and air supply unit, and mechanical refrigeration unit passes through the pipe connection with the evaporimeter and forms closed circuit. The utility model discloses air conditioning unit can select different operational modes to the outdoor meteorological condition of difference to the most energy-conserving operation mode adapts to various outdoor climatic conditions, thereby adjusts the humiture of room air.
Description
Technical Field
The utility model belongs to the technical field of air conditioning equipment, concretely relates to two cold evaporative cooling-condensation integration air conditioning unit of data center computer lab.
Background
With the continuous development of economy in China, energy sources in China face a plurality of challenges, energy conservation and emission reduction become a basic national policy in China, and a data center is a large household for energy consumption. In the data center, in order to maintain constant temperature and humidity throughout the year in the machine room, huge energy consumption is brought to the data center. Under the double pressure of energy conservation and emission reduction and reduction of operation cost, the important problem of energy conservation and emission reduction of the data center is to find a low-energy-consumption cooling mode.
The traditional mechanical refrigeration air conditioner has high initial investment and large energy consumption for system operation. In extreme weather in summer, the outdoor air temperature is too high, which can cause the condenser to have poor heat dissipation, so that the compressor starts overheat protection and stops supplying cold indoors. The evaporative cooling air conditioning technology takes water as a cooling medium, carries out cooling and heat dissipation by absorbing heat through moisture evaporation, and prepares cold air or cold water by utilizing dry air energy through direct or indirect contact of air and water.
In order to improve the stability of the refrigeration performance of the evaporative cooling unit, two refrigeration modes are coupled in a synergistic mode to cool air and radiate heat of a condenser through moisture evaporation respectively. The evaporative condenser can cause damage of frost crack of the water distributor when used in a data center in winter. Therefore, the evaporative condenser is innovated to a certain extent. The air conditioning system fully utilizes dry air energy, precools machine room return air through evaporative cooling, and can selectively start the indirect evaporative cooler and the direct evaporative cooler according to outdoor meteorological conditions in a transition season. The evaporative cooling and the mechanical refrigeration are combined, so that the service time of evaporative cooling equipment can be greatly prolonged, the mechanical refrigeration starting time is shortened, and the energy consumption is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a two cold evaporative cooling-condensation integration air conditioning unit of data center computer lab can select different operational mode to the outdoor meteorological condition of difference to the most energy-conserving operation mode adapts to various outdoor climatic conditions, thereby adjusts the humiture of room air.
The utility model provides a technical scheme be, a two cold evaporative cooling-condensation integration air conditioning unit of data center computer lab, including organizing the casing, be provided with mechanical refrigeration unit in the unit casing, mechanical refrigeration unit one side still has set gradually and has imitated filter, indirect evaporative cooling unit of board pipe, evaporimeter, direct evaporative cooling unit and air supply unit, and mechanical refrigeration unit passes through the pipe connection with the evaporimeter and forms closed circuit.
The utility model is also characterized in that,
and an air return port is arranged on the side wall of the unit shell between the mechanical refrigeration unit and the primary filter.
The mechanical refrigeration unit comprises a compressor, a water storage tank c, a filler b, a condensing coil and a condensing exhaust fan, wherein the compressor is arranged inside the unit shell from bottom to top, a first exhaust port is formed in the top wall of the unit shell, which corresponds to the upper portion of the condensing exhaust fan, a water distributor c is arranged between two adjacent condensing pipes in the condensing coil, the condensing coil is divided into an upper part and a lower part by the water distributor c, the water distributor c is connected with the water storage tank c through a water supply pipe G1, a condensing air inlet is formed in the side wall of the unit shell, which corresponds to the lower portion of the filler b, and the condensing coil is sequentially connected with the compressor and the.
A thermal expansion valve is also arranged on the copper pipe between the compressor and the evaporator.
The water supply pipe G1 is also provided with a circulating water pump c.
The plate-tube indirect evaporative cooling unit comprises a plate-tube indirect evaporative cooler, a water distributor a, a water baffle and a secondary exhaust fan are sequentially arranged above the plate-tube indirect evaporative cooler from bottom to top, a second air outlet is formed in the top wall of the unit shell corresponding to the upper part of the secondary exhaust fan, a reservoir a is arranged below the plate-tube indirect evaporative cooler, the water distributor a is connected with the reservoir a through a water supply pipe G2, and a circulating water pump a is further arranged on the water supply pipe G2; the air cooler also comprises a secondary air inlet which is arranged on the corresponding side wall of the unit shell below the plate-tube indirect evaporative cooler.
The direct evaporative cooling unit comprises a filler a, a water distributor b is arranged above the filler a, a water storage tank b is arranged below the filler a, the water distributor b is connected with the water storage tank b through a water supply pipe G1, and a circulating water pump b is further arranged on the water supply pipe G1.
And an access door is also arranged on the side wall of the unit shell.
The air supply unit comprises a fan and a unit air outlet arranged on the side wall of the unit shell.
The utility model has the advantages that:
(1) the unit is formed by combining two technologies of evaporative cooling-condensation and mechanical refrigeration, is embodied in the cooperative coupling of evaporative cooling and mechanical refrigeration and an evaporative condensation part, and combines the ultra-low energy consumption technology of evaporative cooling, so that the energy consumption of the unit is reduced to a certain extent, and the energy efficiency of the unit is improved;
(2) the mechanical refrigeration unit adopts an evaporative condenser, and has the advantages that the condensing coil is divided into an upper part and a lower part, namely the evaporative condensation part and the air cooling part, so that two cooling modes are selectively and reasonably used according to climate change, the heat dissipation efficiency of the condenser is improved, and the anti-freezing problem in winter is solved; secondly, an evaporation condensation technology is adopted, the latent heat of vaporization of water is used for taking away condensation heat, and the energy efficiency ratio is higher compared with water cooling and air cooling; thirdly, the filler is arranged below the condenser, so that the circulating water subjected to heat and mass exchange is cooled, and the condensing efficiency of the condenser is improved;
(3) the double-cold condenser can be used for carrying out high-energy-efficiency heat dissipation in summer, and the return air of the machine room is used for preheating and condensing the inlet air, so that the problem of freezing prevention in winter is effectively solved;
(4) the unit can adapt to different indoor environment requirements by opening and closing 7 different functional units and equipment; the humidification can be realized, natural cold sources are used for cooling in winter, ultra-low energy consumption cooling in transitional seasons and low energy consumption dehumidification cooling in summer;
(5) the unit adopts an integrated design, and the whole unit is wrapped by a container type shell, so that the production and assembly time is reduced, the installation process is simplified, and the transportation is convenient; different functional sections can be easily assembled to meet different environmental requirements, and the modular arrangement reduces the occupied area of the unit.
Drawings
Fig. 1 is a schematic structural diagram of a double-cooling evaporative cooling-condensation integrated air conditioning unit of a data center machine room of the present invention;
fig. 2 is a schematic structural diagram of a mechanical refrigeration unit in the air conditioning unit of the present invention;
FIG. 3 is a schematic structural view of the air conditioning unit of the present invention with an air return inlet;
FIG. 4 is a schematic structural view of the air conditioning unit of the present invention with a primary filter portion;
FIG. 5 is a schematic structural diagram of the indirect evaporative cooling unit of the plate-tube in the air conditioning unit of the present invention;
FIG. 6 is a schematic structural view of the evaporator-equipped part of the air conditioning unit of the present invention;
FIG. 7 is a schematic structural diagram of a direct evaporative cooling unit in the air conditioning unit of the present invention;
fig. 8 is a schematic structural diagram of an air supply unit in the air conditioning unit of the present invention;
fig. 9 is a front view of the plate-tube indirect evaporative cooler of the air conditioning unit of the present invention.
In the figure, 1, a compressor, 2, a thermal expansion valve, 3, an air return inlet, 4, a primary filter, 5, a reservoir a, 6, a secondary air inlet, 7, a plate-pipe indirect evaporation cooler, 8, a circulating water pump a, 9, an access door, 10, an evaporator, 11, a reservoir b, 12, a circulating water pump b, 13, a fan, 14, a unit air outlet, 15, a unit shell, 16, a water distributor b, 17, a filler a, 18, a water distributor a, 19, a water baffle, 20, a secondary exhaust fan and 21, a circulating water pump c are arranged; 22. a condensing exhaust fan; 23. a water distributor c; 24. a condenser coil; 25. a filler b; 26. a condensing air inlet; 27. a reservoir c; 28. the first exhaust opening, 29, the second exhaust opening.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to a two cold evaporative cooling-condensation integration air conditioning unit of data center computer lab, as shown in fig. 1, 4, 6, including organic unit shell 15, be provided with mechanical refrigeration unit in the unit shell 15, mechanical refrigeration unit one side has still set gradually primary filter 4, the indirect evaporative cooling unit of board pipe, evaporimeter 10, direct evaporative cooling unit and air supply unit, and mechanical refrigeration unit passes through the pipe connection with evaporimeter 10 and forms closed circuit.
The primary filter 4 is a bag-type primary filter.
As shown in fig. 3, the air return opening 3 is arranged on the side wall of the unit shell 15 between the mechanical refrigeration unit and the primary filter 4, the ground installation mode is adopted, air enters through the air return opening 3, and the unit is applied to a data center and only processes machine room return air.
As shown in fig. 2, the mechanical refrigeration unit includes a compressor 1, a water reservoir c27, a filler b25, a condensing coil 24 and a condensing exhaust fan 22, which are arranged inside the unit housing 15 from bottom to top, a first exhaust port 28 is arranged on the top wall of the unit housing 15 corresponding to the upper side of the condensing exhaust fan 22, a water distributor c23 is arranged between two adjacent condensing pipes in the condensing coil 24, the condensing coil 24 is divided into an upper part and a lower part by the water distributor c23, the water distributor c23 only sprays the lower condensing coil, the water distributor c23 is connected with the water reservoir c27 through a water supply pipe G1, a condensing air inlet 26 is arranged on the side wall of the unit housing 15 corresponding to the lower side of the filler b25, and the condensing coil 24 is sequentially connected with the compressor 1 and the evaporator 10 through a copper pipe to form.
A thermal expansion valve 2 is also arranged on the copper pipe between the compressor 1 and the evaporator 10.
The water supply pipe G1 is also provided with a circulating water pump c21, circulating water is pumped out from a reservoir c27 through a circulating water pump c21, is sprayed on the surface of the lower condensing coil, is subjected to heat-mass exchange with air entering from a condensing air inlet 26, absorbs condensation heat through the evaporation cooling effect and the heat conduction effect of the pipe wall, and is exhausted through the upper condensing coil firstly and a refrigerant in the precooling coil is exhausted by the condensation exhaust fan 22.
As shown in fig. 5 and 9, the plate-tube indirect evaporative cooling unit includes a plate-tube indirect evaporative cooler 7, and adopts a horizontal smooth plate tube to reduce the generation of dry spots in the tube section during water spraying, and enhance heat transfer, a water distributor a18, a water baffle 19, and a secondary exhaust fan 20 are sequentially arranged above the plate-tube indirect evaporative cooler 7 from bottom to top, a second air outlet 29 is arranged on the top wall of the unit housing 15 corresponding to the upper side of the secondary exhaust fan 20, a water storage tank a5 is arranged below the plate-tube indirect evaporative cooler 7, the water distributor a18 is connected with the water storage tank a5 through a water supply pipe G2, and a circulating water pump a8 is also arranged on the water supply pipe G2; the horizontal pipe of the water distributor is evenly provided with nozzles. The inlet air flows out from the inner side of the pipe trunk channel of the pipe type indirect evaporative cooler and exchanges heat with secondary air sprayed with water from the outer side of the pipe; the plate-tube indirect evaporative cooling unit further comprises a secondary air inlet 6 which is arranged on the corresponding side wall of the unit shell 15 below the plate-tube indirect evaporative cooler 7.
As shown in fig. 7, the direct evaporative cooling unit includes a filler a17, a water distributor b16 is disposed above the filler a17, a water reservoir b11 is disposed below the filler a17, the water distributor b16 and the water reservoir b11 are connected by a water supply pipe G1, and a water circulation pump b12 is further disposed on the water supply pipe G1.
An access door 9 is also provided on the side wall of the unit housing 15.
As shown in fig. 8, the air supply unit includes a fan 13 and a unit air outlet 14 disposed on a side wall of the unit housing 15, and the fan 13 is a suction fan and supplies air by overcoming system and pipe section resistances.
The utility model discloses an air conditioning unit has different operational mode, and concrete implementation mode is as follows:
(1) direct evaporative cooling mode of operation (DEC): in the mode, the air return opening 3, the primary filter 4, the direct evaporative cooling unit and the air supply unit are opened; water in a reservoir b11 is sucked into a water distributor b16 by the suction action of a circulating water pump b12 and sprayed out, the water is sprayed on the surface of a filler a17 in the direct evaporative cooling unit, and the water and the air enter from an air return opening 3 to carry out heat and moisture exchange, and the air is humidified, cooled and filtered;
(2) indirect evaporative cooling + direct evaporative cooling mode of operation (IDEC): in the mode, the air return opening 3, the primary filter 4, the plate tube indirect evaporative cooling unit, the direct evaporative cooling unit and the air supply unit are opened; according to different seasons, the air cooling system can be subdivided into winter operation and transition season operation, when the air cooling system operates in winter, for buildings needing year-round cooling like a data center, air with extremely low outdoor temperature in winter is a free cold source, natural cooling is conducted at the moment, outdoor fresh air is sucked from a secondary air inlet 6 through a secondary exhaust fan 20, indoor return air enters from a return air inlet 3, enters a dry channel of a plate-tube indirect evaporative cooler 7 through a primary filter 4, is subjected to heat exchange and cooling with outdoor fresh air through a tube wall, is sent into a room through a fan 13 through a unit air outlet 14, and takes away indoor waste heat, and at the moment, the unit is in a dry working condition; when the air conditioner operates in a transition season, air enters from the air return port 3, enters the dry channel of the plate tube indirect evaporative cooler 7 after passing through the primary filter 4, circulating water is in contact with outdoor air entering from the secondary air inlet 6 on the surface of the tube to carry out heat and moisture exchange, an isenthalpic cooling process is carried out, then the air in the dry channel is subjected to the isenthalpic cooling through the heat conduction of the tube wall, the cooled air is continuously subjected to the heat and moisture exchange with spray water on the surface of a filler a17 in the direct evaporative cooling unit, so that the purposes of cooling and humidifying the air are achieved, and the secondary air after heat exchange is discharged through the secondary exhaust fan 20;
(3) evaporative cooling + mechanical refrigeration combined operation mode (IEC + DX): in this mode, the mechanical refrigeration unit, the air return inlet 3, the primary filter 4, the plate tube indirect evaporative cooling unit, the evaporator 10 and the air supply unit are started, the direct evaporative cooling unit can be started as required, and the specific process is as follows: on the air side, fresh (return) air enters a dry channel of a plate-tube indirect evaporative cooler 7 after passing through a primary filter 4, circulating water is sprayed on the tube surface of the plate-tube indirect evaporative cooler 7 to be contacted with secondary air entering from a secondary air inlet 6, heat and moisture exchange is carried out, an isenthalpic cooling process is carried out, then the air in the dry channel is cooled in an equal moisture way through the heat conduction of a tube wall, the air cooled by the plate-tube indirect evaporative cooler 7 flows through an evaporator 10 and is subjected to heat exchange with a refrigerant in a coil tube through the wall surface heat conduction, after the dehumidification cooling process is realized, the air is sent into a room through the suction action of a fan 13, and at the moment, the unit is in a wet working condition; in the condensation part, when the air conditioner runs in summer, outdoor air enters the surface of the upper condensation coil pipe 24 of the mechanical refrigeration unit from the condensation air inlet 26, performs heat and humidity exchange with water sprayed onto the surface of the plate pipe through the water distributor c23, takes away condensation heat through evaporation of the water, exhaust air continuously sweeps the surface of the upper condensation coil pipe 24 upwards to pre-cool a refrigerant in the pipe, and is exhausted from the first exhaust port 28 by the upper condensation exhaust fan 22, and if the moisture content of the exhaust air is too low, the direct evaporation cooling unit can be started for humidification and filtration; when the air conditioner runs in winter, the mechanical refrigeration condensation part only adopts air cooling for heat dissipation, and does not distribute water to the condensation coil, so that the problem of freezing prevention in winter can be effectively solved.
Claims (8)
1. A double-cold evaporative cooling-condensation integrated air conditioning unit of a data center machine room is characterized by comprising a unit shell (15), wherein a mechanical refrigeration unit is arranged in the unit shell (15), a primary filter (4), a plate-tube indirect evaporative cooling unit, an evaporator (10), a direct evaporative cooling unit and an air supply unit are sequentially arranged on one side of the mechanical refrigeration unit, and the mechanical refrigeration unit is connected with the evaporator (10) through a pipeline to form a closed loop;
the mechanical refrigeration unit comprises a compressor (1), a water storage tank c (27), a filler b (25), a condensing coil pipe (24) and a condensing exhaust fan (22) which are arranged in a unit shell (15) from bottom to top, a first exhaust opening (28) is arranged on the top wall of the unit shell (15) corresponding to the upper part of the condensation exhaust fan (22), a water distributor c (23) is arranged between two adjacent condensing pipes in the condensing coil (24), the water distributor c (23) divides the condensing coil (24) into an upper part and a lower part, the water distributor c (23) is connected with the water storage tank c (27) through a water supply pipe G1, a condensing air inlet (26) is arranged on the side wall of the unit shell (15) corresponding to the lower part of the filler b (25), the condensing coil (24) is sequentially connected with the compressor (1) and the evaporator (10) through copper pipes and forms a closed circulation loop.
2. The double-cold evaporative cooling-condensation integrated air conditioning unit of the data center machine room as claimed in claim 1, wherein an air return opening (3) is formed in the side wall of the unit shell (15) between the mechanical refrigeration unit and the primary filter (4).
3. The double-cold evaporative cooling-condensation integrated air conditioning unit of the data center machine room as claimed in claim 1, wherein a thermal expansion valve (2) is further arranged on a copper pipe between the compressor (1) and the evaporator (10).
4. The dual-cooling evaporative cooling-condensing integrated air conditioning unit of the data center machine room as claimed in claim 1, wherein the water supply pipe G1 is further provided with a circulating water pump c (21).
5. The double-cooling evaporative cooling-condensation integrated air conditioning unit of the data center machine room according to claim 1, wherein the plate-tube indirect evaporative cooling unit comprises a plate-tube indirect evaporative cooler (7), a water distributor a (18), a water baffle (19) and a secondary exhaust fan (20) are sequentially arranged above the plate-tube indirect evaporative cooler (7) from bottom to top, a second exhaust outlet (29) is arranged on the top wall of the unit shell (15) corresponding to the upper part of the secondary exhaust fan (20), a reservoir a (5) is arranged below the plate-tube indirect evaporative cooler (7), the water distributor a (18) is connected with the reservoir a (5) through a water supply pipe G2, and a circulating water pump a (8) is further arranged on the water supply pipe G2; the air cooler also comprises a secondary air inlet (6) which is arranged on the corresponding side wall of the unit shell (15) below the plate-tube indirect evaporative cooler (7).
6. The dual-cooling evaporative cooling-condensing integrated air conditioning unit of the data center machine room as claimed in claim 1, wherein the direct evaporative cooling unit comprises a filler a (17), a water distributor b (16) is arranged above the filler a (17), a reservoir b (11) is arranged below the filler a (17), the water distributor b (16) and the reservoir b (11) are connected through a water supply pipe G1, and a circulating water pump b (12) is further arranged on the water supply pipe G1.
7. The dual-cooling evaporative cooling-condensation integrated air conditioning unit of the data center machine room as claimed in claim 1, wherein an access door (9) is further provided on a side wall of the unit housing (15).
8. The dual-cooling evaporative cooling-condensing integrated air conditioning unit of the data center machine room as claimed in claim 1, wherein the air supply unit comprises a fan (13) and a unit air outlet (14) arranged on a side wall of the unit housing (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920235473.8U CN209840328U (en) | 2019-02-25 | 2019-02-25 | Double-cold evaporative cooling-condensation integrated air conditioning unit for data center machine room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920235473.8U CN209840328U (en) | 2019-02-25 | 2019-02-25 | Double-cold evaporative cooling-condensation integrated air conditioning unit for data center machine room |
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| Publication Number | Publication Date |
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| CN209840328U true CN209840328U (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920235473.8U Active CN209840328U (en) | 2019-02-25 | 2019-02-25 | Double-cold evaporative cooling-condensation integrated air conditioning unit for data center machine room |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306673A (en) * | 2020-02-28 | 2020-06-19 | 西安工程大学 | Evaporative condenser combining vertical pipe indirect evaporative cooling |
| CN114396672A (en) * | 2022-01-17 | 2022-04-26 | 沈阳澳蓝节能科技有限公司 | Composite evaporative cooling cold air unit for machine room cooling |
-
2019
- 2019-02-25 CN CN201920235473.8U patent/CN209840328U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306673A (en) * | 2020-02-28 | 2020-06-19 | 西安工程大学 | Evaporative condenser combining vertical pipe indirect evaporative cooling |
| CN114396672A (en) * | 2022-01-17 | 2022-04-26 | 沈阳澳蓝节能科技有限公司 | Composite evaporative cooling cold air unit for machine room cooling |
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