CN113260233A - Inner-cooling evaporative cooling cold water system for data center - Google Patents
Inner-cooling evaporative cooling cold water system for data center Download PDFInfo
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- CN113260233A CN113260233A CN202110579761.7A CN202110579761A CN113260233A CN 113260233 A CN113260233 A CN 113260233A CN 202110579761 A CN202110579761 A CN 202110579761A CN 113260233 A CN113260233 A CN 113260233A
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- 238000001816 cooling Methods 0.000 title claims abstract description 133
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 133
- 239000002131 composite material Substances 0.000 claims abstract description 10
- 238000005507 spraying Methods 0.000 claims description 32
- 239000000498 cooling water Substances 0.000 claims description 14
- 239000000945 filler Substances 0.000 claims description 14
- 238000001704 evaporation Methods 0.000 claims description 11
- 230000008020 evaporation Effects 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 6
- 238000004378 air conditioning Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/208—Liquid cooling with phase change
- H05K7/20827—Liquid cooling with phase change within rooms for removing heat from cabinets, e.g. air conditioning devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0035—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using evaporation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an internal cooling evaporative cooling cold water system for a data center, which comprises a tail end coil pipe arranged in the data center, an indirect evaporative composite direct evaporative cooling fresh air unit connected with the data center through an air pipe, and an evaporative cooling cold water unit, wherein the evaporative cooling cold water unit is connected with a plate heat exchanger through a pipeline and forms a closed loop with the plate heat exchanger, the evaporative cooling cold water unit is also connected with a plate heat exchanger a through a pipeline and forms a closed loop with the plate heat exchanger a, and the plate heat exchanger a form a closed loop through a pipeline and the tail end coil pipe. The invention discloses an internal-cooling evaporative cooling cold water system for a data center, which solves the problems that the data center in the prior art is mostly applied to an evaporative cooling technology in a wind side system, the traditional cooling tower is small in cooling amplitude, and the traditional cooling tower is easy to freeze in winter.
Description
Technical Field
The invention belongs to the technical field of air conditioning equipment, and relates to an internal cooling type evaporative cooling cold water system for a data center.
Background
In recent years, with the rapid development of 5G, faster and denser data flow means that data centers face higher energy consumption. According to incomplete statistics, the power consumption of a cooling system in a data center accounts for about 40% of the total energy consumption of the data center, is an energy consumption element with the largest energy consumption ratio except for IT equipment, is not greatly different from the energy consumption of the IT equipment, and even is effective in reducing the energy consumption of the cooling system of some data centers with poor energy efficiency, so that the energy consumption of the cooling system can exceed the energy consumption of the IT equipment. At present, most of the data centers are applied to an evaporative cooling technology in a wind side system, the cooling amplitude of a traditional cooling tower is small, and the traditional cooling tower is easy to freeze in winter. Although the wind side system has long application time and higher maturity in the data center, the wind side evaporative cooling system has the disadvantages of large occupied space, high requirement on matching degree with a building, low cabinet capacity rate of a machine room and the like in application.
Disclosure of Invention
The invention aims to provide an internal-cooling evaporative cooling cold water system for a data center, which solves the problems that the data center in the prior art is mostly applied to an evaporative cooling technology in a wind side system, the traditional cooling tower is small in cooling amplitude, and the traditional cooling tower is easy to freeze in winter.
The invention adopts the technical scheme that the internal-cooling evaporative cooling cold water system for the data center comprises a tail end coil arranged in the data center, an indirect evaporative composite direct evaporative cooling fresh air unit connected with the data center through an air pipe, and an evaporative cooling cold water unit, wherein the evaporative cooling cold water unit is connected with a plate heat exchanger through a pipeline and forms a closed loop with the plate heat exchanger, the evaporative cooling cold water unit is also connected with a plate heat exchanger a through a pipeline and forms a closed loop with the plate heat exchanger a, and the plate heat exchanger a form a closed loop through a pipeline and the tail end coil.
The present invention is also characterized in that,
the evaporative cooling water chilling unit comprises a water chilling unit shell, wherein air inlets are formed in two corresponding side walls of the water chilling unit shell, coils and vertical tube type indirect evaporative cooling sections are sequentially arranged on the two sides in the water chilling unit shell according to the air inlet direction, a direct evaporative cooling section is arranged between the two vertical tube type indirect evaporative cooling sections, the two coils are connected through a pipeline G1 and a pipeline G2 to form a circulation loop, and the plate type heat exchanger is respectively connected with a pipeline G1 and a pipeline G2 through a pipeline G3 and a pipeline G4 to form a closed circulation loop together with the two coils;
the direct evaporative cooling section comprises a filler a, a spraying device, a fan and an air outlet are sequentially arranged above the filler a from bottom to top, a water storage tank is arranged below the spraying device, the water storage tank is connected with the spraying device through a water supply pipe, and the spraying device and the water storage tank are respectively connected with the plate heat exchanger a through a pipeline G5 and a pipeline G6 to form a circulation loop;
the pipe G5 is provided with a water pump b, and the pipe G3 is provided with a water pump a.
Still be provided with filter equipment in the air inlet, be provided with circulating water pump on the delivery pipe.
The vertical pipe type indirect evaporative cooling section comprises a vertical pipe heat exchanger which is arranged corresponding to an air inlet, a spraying device a, a fan a and a secondary air outlet are sequentially arranged above the vertical pipe heat exchanger from bottom to top, a water storage tank a is arranged below the vertical pipe heat exchanger, the water storage tank a is connected with the spraying device a through a pipeline, and the vertical pipe type indirect evaporative cooling section further comprises a secondary air inlet which is arranged at the position, corresponding to the lower position of the vertical pipe heat exchanger, of the side wall of the water chilling unit shell.
The indirect evaporation composite direct evaporative cooling fresh air handling unit comprises a fresh air handling unit shell, wherein an air inlet a and an air outlet a are respectively arranged on two corresponding side walls of the fresh air handling unit shell, a vertical tube type indirect evaporative cooling section a and a direct evaporative cooling section a are sequentially arranged in the fresh air handling unit shell according to the flowing direction of air inlet, and the air outlet a is communicated with the position of a corresponding tail end coil pipe in a data center through a pipeline.
The vertical pipe type indirect evaporative cooling section a comprises a vertical pipe heat exchanger a corresponding to an air inlet a, a spraying device b and a secondary air outlet a are sequentially arranged above the vertical pipe heat exchanger a from bottom to top, a water storage tank b is arranged below the vertical pipe heat exchanger a, the water storage tank b is connected with the spraying device b through a water supply pipe a, and the vertical pipe type indirect evaporative cooling section a further comprises a secondary air inlet a arranged at the position, corresponding to the lower position of the vertical pipe heat exchanger a, of the side wall of the fresh air handling unit shell.
A circulating water pump a is arranged on the water supply pipe a, and a fan a is arranged in the secondary air outlet a.
The direct evaporative cooling section a comprises a filler b, a spraying device b is arranged above the filler b, a water storage tank b is arranged below the spraying device, and the water storage tank b is connected with the spraying device b through a water supply pipe b.
The water supply pipe b is provided with a circulating water pump b.
The plate heat exchanger is connected with the tail end coil pipe through a pipeline G7 and a pipeline G8 respectively and forms a circulation loop with the tail end coil pipe, the plate heat exchanger a4 is connected with a pipeline G7 and a pipeline G8 through a pipeline G9 and a pipeline G10 respectively and forms a circulation loop with the tail end coil pipe, a valve and a valve a are arranged on one side, close to the plate heat exchanger, of the connection point of the pipeline G7 and the pipeline G8 and the connection point of the pipeline G9 and the pipeline G10 respectively, and a water pump c is arranged on the pipeline G7.
The invention has the beneficial effects that:
(1) the internal cooling type evaporative cooling system for the data center can select and start different operation modes according to outdoor weather, and realizes annual energy-saving operation;
(2) the invention relates to an internal-cooling evaporative cooling system for a data center, which is used for refrigerating the data center, and adopts an indirect evaporative cooler to pre-cool working air entering a packed tower in non-cold seasons so as to reduce the water outlet temperature of a unit;
(3) according to the internal cooling type evaporative cooling system for the data center, the indirect evaporative cooler adopts the vertical pipe type, so that the system has good heat exchange performance in sand weather, and meanwhile, the system has excellent anti-scaling performance, and the maintenance amount of a unit is reduced;
(4) according to the internal cooling type evaporative cooling system for the data center, the indirect evaporation is compounded with the direct evaporative cooling fresh air handling unit to operate as a backup cold source in low-temperature seasons, so that the data center can completely utilize the evaporative cooling technology to realize year-round refrigeration;
(5) the internal cooling type evaporative cooling system for the data center is a cold water system, is applied to the data center, only needs to connect a water pipe into a machine room, occupies small space, effectively improves the cabinet capacity rate of the machine room, can utilize a cold storage tank to ensure cooling for the system, and has relatively less investment and high safety compared with an air cooling system which needs UPS for power conservation.
Drawings
FIG. 1 is a schematic diagram of an internally-cooled evaporative cooling chiller system for a data center according to the present invention;
FIG. 2 is a schematic diagram of an evaporative cooling chiller of an internally-cooled evaporative cooling chiller system for a data center according to the present invention;
fig. 3 is a schematic structural diagram of an indirect evaporation composite direct evaporation cooling fresh air handling unit in an internal cooling type evaporation cooling cold water system for a data center.
In the figure, 1, a plate heat exchanger, 2, a water pump a, 3, an evaporative cooling water chilling unit, 4, a plate heat exchanger a, 5, a valve, 6, a direct evaporative cooling section, 7, a valve a, 8, a water pump b, 9, a vertical pipe type indirect evaporative cooling section, 10, an indirect evaporative composite direct evaporative cooling fresh air handling unit, 11, a tail end coil pipe, 12, a coil pipe, 13, a water pump c, 14, a return fan, 15, a cabinet and 16, an exhaust fan are arranged;
3-1, a water chilling unit shell and 3-2, an air inlet;
6-1 parts of filler a, 6-2 parts of a spraying device, 6-3 parts of a water storage tank, 6-4 parts of a fan and 6-5 parts of an air outlet;
9-1 vertical pipe heat exchanger, 9-2 spray device a, 9-3 fan a, 9-4 water storage tank a, 9-5 secondary air outlet;
10-1 of a fresh air unit shell, 10-2 of an air inlet a, 10-3 of an air outlet a, 10-4 of a vertical pipe type indirect evaporation cooling section a, 10-5 of a direct evaporation cooling section a, 10-6 of a vertical pipe heat exchanger a, 10-7 of a spray device b, 10-8 of a secondary air outlet a, 10-9 of a water storage tank b, 10-10 of a water supply pipe a, 10-11 of a circulating water pump a, 10-12 of a fan a, 10-13 of a filler b, 10-14 of the spray device b, 10-15 of the water storage tank b, 10-16 of the water supply pipe b, 10-17 of the circulating water pump b.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention discloses an internal-cooling evaporative cooling cold water system for a data center, which is structurally shown in figure 1 and comprises a tail end coil 11 arranged in the data center, an indirect evaporative composite direct evaporative cooling fresh air unit 10 connected with the data center through an air pipe, and an evaporative cooling cold water unit 3, wherein the evaporative cooling cold water unit 3 is connected with a plate heat exchanger 1 through a pipeline and forms a closed loop with the plate heat exchanger 1, the evaporative cooling cold water unit 3 is also connected with a plate heat exchanger a4 through a pipeline and forms a closed loop with a plate heat exchanger a4, and the plate heat exchanger 1 and the plate heat exchanger a4 form a closed loop through a pipeline and the tail end coil 11.
As shown in fig. 2, the evaporative cooling water chilling unit 3 includes a water chilling unit housing 3-1, two opposite side walls of the water chilling unit housing 3-1 are provided with air inlets 3-2, two sides of the inside of the water chilling unit housing 3-1 are sequentially provided with a coil 12 and a vertical tube type indirect evaporative cooling section 9 according to an air inlet direction, a direct evaporative cooling section 6 is arranged between the two vertical tube type indirect evaporative cooling sections 9, the two coils 12 are connected with a pipeline G1 and a pipeline G2 to form a circulation loop, and the plate heat exchanger 1 is connected with a pipeline G1 and a pipeline G4 through a pipeline G3 and a pipeline G2 to form a closed circulation loop with the two coils 12;
the direct evaporative cooling section 6 comprises a filler a6-1, a spraying device 6-2, a fan 6-4 and an air outlet 6-5 are sequentially arranged above a filler a6-1 from bottom to top, a water storage tank 6-3 is arranged below the spraying device 6-2, the water storage tank 6-3 is connected with the spraying device 6-2 through a water supply pipe 6-4, and the spraying device 6-2 and the water storage tank 6-3 are respectively connected with a plate heat exchanger a4 through a pipeline G5 and a pipeline G6 to form a circulation loop;
the pipe G5 is provided with a water pump b8, and the pipe G3 is provided with a water pump a 2.
The air inlet 3-2 is also internally provided with a filtering device 3-3, and a water supply pipe 6-4 is provided with a circulating water pump 6-5.
The vertical pipe type indirect evaporative cooling section 9 comprises a vertical pipe heat exchanger 9-1 arranged corresponding to the air inlet 3-2, a spraying device a9-2, a fan a9-3 and a secondary air outlet 9-5 are sequentially arranged above the vertical pipe heat exchanger 9-1 from bottom to top, a water storage tank a9-4 is arranged below the vertical pipe heat exchanger 9-1, the water storage tank a9-4 is connected with the spraying device a9-2 through a pipeline, and the vertical pipe type indirect evaporative cooling section further comprises a secondary air inlet arranged at the position, corresponding to the position below the vertical pipe heat exchanger 9-1, of the side wall of the water chilling unit shell 3-1.
As shown in fig. 3, the indirect evaporation composite direct evaporative cooling fresh air handling unit 10 includes a fresh air handling unit housing 10-1, an air inlet a10-2 and an air outlet a10-3 are respectively disposed on two corresponding side walls of the fresh air handling unit housing 10-1, a vertical tube type indirect evaporative cooling section a10-4 and a direct evaporative cooling section a10-5 are sequentially disposed in the fresh air handling unit housing 10-1 according to the flowing direction of the inlet air, and the air outlet a10-3 is connected to a position corresponding to the end coil 11 in the data center through a pipeline.
The vertical pipe type indirect evaporative cooling section a10-4 comprises a vertical pipe heat exchanger a10-6 corresponding to an air inlet a10-2, a spraying device b10-7 and a secondary air outlet a10-8 are sequentially arranged above the vertical pipe heat exchanger a10-6 from bottom to top, a water storage tank b10-9 is arranged below the vertical pipe heat exchanger a10-6, the water storage tank b10-9 is connected with the spraying device b10-7 through a water supply pipe a10-10, and the vertical pipe type indirect evaporative cooling section a10-4 further comprises a secondary air inlet a arranged at the position, corresponding to the position below the vertical pipe heat exchanger a10-6, of the side wall of a fresh air unit shell 10-1.
A water supply pipe a10-10 is provided with a circulating water pump a10-11, and a secondary air outlet a10-8 is provided with a fan a 10-12.
The direct evaporative cooling section a10-5 comprises a filler b10-13, a spraying device b10-14 is arranged above the filler b10-13, a water storage tank b10-15 is arranged below the spraying device 6-2, and the water storage tank b10-15 and the spraying device b10-14 are connected through a water supply pipe b 10-16.
The water supply pipe b10-16 is provided with a circulating water pump b 10-17.
The plate heat exchanger 1 is connected with the tail end coil 11 through a pipeline G7 and a pipeline G8 respectively and forms a circulation loop with the tail end coil 11, the plate heat exchanger a4 is connected with a pipeline G7 and a pipeline G8 through a pipeline G9 and a pipeline G10 respectively and forms a circulation loop with the tail end coil 11, a valve 5 and a valve a7 are further arranged on one side, close to the plate heat exchanger 1, of connection points of the pipeline G7 and the pipeline G8 and the pipeline G9 and the pipeline G10 respectively, and a water pump c13 is arranged on the pipeline G7.
The data center is internally provided with a ceiling layer, an air outlet pipeline is arranged in the ceiling layer, the air outlet pipeline is internally provided with an exhaust fan 16, an air supply channel is arranged underground of the data center, a plurality of air supply outlets facing the cabinet 15 are arranged on the air supply channel, a fan b14 is arranged below the tail end coil pipe 11, the air supply fan sends air cooled by the tail end coil pipe 11 into the air supply channel, and the air supply fan cools the cabinet 15 and then discharges the data center under the action of the exhaust fan 16.
The water in the pipelines G3 and G4 and the pipelines G7 and G8 exchange heat in the plate heat exchanger 1; the water in the conduit G9 and the conduit G10 and in the conduit G5 and the conduit G6 exchange heat in the plate heat exchanger b 4.
The pipeline G8 and the pipeline G7 are respectively provided with a valve 5 and a valve a7 for adjusting the flow ratio and mode switching of the pipeline G9 and the pipeline G10, and the pipeline G7 and the pipeline G8.
When the evaporative cooling water chilling unit 3 provides cooling capacity for the system, the tail end air returning machine 14 serves as an air returning machine, so that indoor return air is recycled; when the system is in extreme weather, the evaporative cooling water chilling unit 3 is closed, the indirect evaporative composite direct evaporative cooling fresh air unit 10 provides cooling capacity for the system, the tail end air returning machine 14 serves as an outdoor fresh air blower, and the system is started in a full fresh air mode to cool the data center.
Circulating water or glycol is arranged in the coil 12.
The working modes of the invention can be divided into the following three types:
(1) in summer and in the transition seasons of spring and autumn:
under the working condition, the operation mode of the evaporative cooling water chilling unit is started, and the valve 5 and the valve a7 are closed.
The working process of the water system is as follows: high-temperature cold water produced by the evaporative cooling water chilling unit enters the plate heat exchanger a4 through a pipeline G5, heat exchange is carried out between the high-temperature cold water and return water in the tail end coil 11 in the plate heat exchanger a4 after passing through a pipeline G10, and the cooled water in the pipeline G10 is sent into the tail end coil 11 through a pipeline G9 and a pipeline G7.
The working process of the wind system is as follows: indoor return air flows through the tail end coil 11 through the air return fan 14 to be cooled and then is sent into the room again to be cooled for the cabinet 16, and the indoor return air is sent into the tail end coil 11 through the air return fan 14 again to be cooled after being heated and is circulated and reciprocated.
(3) In the summer extreme high temperature working condition:
under the working condition, the operation mode of the indirect evaporation composite direct evaporation cooling fresh air handling unit is started, and the water pump 2, the water pump b8 and the water pump c13 are all closed.
The working process of the water system is as follows: the water in the vertical pipe type indirect evaporative cooling section a10-4 is circulating water, and the water in the direct evaporative cooling section a10-5 is also circulating water.
The working process of the wind system is as follows: outdoor fresh air is subjected to equal-humidity cooling through the vertical pipe type indirect evaporative cooling section a10-4, the vertical pipe type indirect evaporative cooling section a10-4 is an inner cooling type vertical pipe type indirect evaporative cooling section, the cooled air is subjected to equal-enthalpy cooling and humidification through the direct evaporative cooling section a10-5 and then is sent into a room, and the cooled air is exhausted out of the room through the exhaust fan 16 after absorbing the heat of the cabinet 15.
(3) Under winter conditions:
under the working condition, the ethylene glycol free cooling mode is started, the valve 5 and the valve a7 are opened, and the water pump b8 is closed.
The working process of the water system is as follows: the glycol solution after heat exchange with the outdoor low-temperature air is sent into the plate heat exchanger 1 through a pipeline G3, and exchanges heat with the return water which is sent into the tail end coil 11 through a pipeline G8 and needs to be cooled.
The working process of the wind system is as follows: indoor return air flows through the tail end coil 11 through the air return fan 14 to be cooled and then is sent into the room again to be cooled for the cabinet 15, and the indoor return air is sent into the tail end coil 11 through the air return fan 14 again to be cooled after being heated and is circulated and reciprocated.
The internal-cooling evaporative cooling cold water system in the data center can select corresponding operation modes according to different outdoor working conditions, utilizes natural cold to cool the data center all the year around, reduces the energy consumption and the operation cost of the data center all the year around, and is energy-saving and efficient.
Claims (10)
1. The utility model provides an inner-cooling evaporative cooling cold water system for data center, its characterized in that, is including setting up terminal coil pipe (11) in the data center and the compound direct evaporative cooling fresh air unit (10) of indirect evaporation that is connected through the tuber pipe with the data center, still includes evaporative cooling cold water unit (3), evaporative cooling cold water unit (3) have plate heat exchanger (1) through the pipe connection and form closed circuit with plate heat exchanger (1), evaporative cooling cold water unit (3) still have plate heat exchanger a (4) through the pipe connection and with plate heat exchanger a (4) form closed circuit, plate heat exchanger (1) and plate heat exchanger a (4) still form closed circuit through pipeline and terminal coil pipe (11).
2. The internally-cooled evaporative cooling chiller system for data centers as set forth in claim 1, it is characterized in that the evaporative cooling water chilling unit (3) comprises a water chilling unit shell (3-1), air inlets (3-2) are arranged on two corresponding side walls of the water chilling unit shell (3-1), two sides in the water chilling unit shell (3-1) are sequentially provided with a coil pipe (12) and a vertical pipe type indirect evaporative cooling section (9) according to an air inlet direction, a direct evaporative cooling section (6) is arranged between the two vertical pipe type indirect evaporative cooling sections (9), the two coil pipes (12) are connected through a pipeline G1 and a pipeline G2 to form a circulation loop, the plate heat exchanger (1) is connected with the pipelines G1 and G2 through a pipeline G3 and a pipeline G4 to form a closed circulation loop with the two coils (12);
the direct evaporative cooling section (6) comprises a filler a (6-1), a spraying device (6-2), a fan (6-4) and an air outlet (6-5) are sequentially arranged above the filler a (6-1) from bottom to top, a water storage tank (6-3) is arranged below the spraying device (6-2), the water storage tank (6-3) is connected with the spraying device (6-2) through a water supply pipe (6-4), and the spraying device (6-2) and the water storage tank (6-3) are respectively connected with the plate heat exchanger a (4) through a pipeline G5 and a pipeline G6 to form a circulation loop;
the pipeline G5 is provided with a water pump b (8), and the pipeline G3 is provided with a water pump a (2).
3. An internally-cooled evaporative cooling water cooling system for a data center as claimed in claim 2, wherein a filtering device (3-3) is further provided in the air inlet (3-2), and a circulating water pump (6-5) is provided on the water supply pipe (6-4).
4. The internally-cooled evaporative cooling chiller system for data centers as set forth in claim 2, it is characterized in that the vertical pipe type indirect evaporative cooling section (9) comprises a vertical pipe heat exchanger (9-1) which is arranged corresponding to the air inlet (3-2), a spraying device a (9-2), a fan a (9-3) and a secondary air outlet (9-5) are sequentially arranged above the vertical pipe heat exchanger (9-1) from bottom to top, the water storage tank a (9-4) is arranged below the vertical pipe heat exchanger (9-1), the water storage tank a (9-4) is connected with the spraying device a (9-2) through a pipeline, and the water chilling unit further comprises a secondary air inlet arranged on the side wall of the water chilling unit shell (3-1) and corresponding to the position below the vertical pipe heat exchanger (9-1).
5. The internal-cooling evaporative cooling water chilling system for the data center according to claim 2, wherein the indirect evaporative composite direct evaporative cooling fresh air handling unit (10) comprises a fresh air handling unit shell (10-1), two corresponding side walls of the fresh air handling unit shell (10-1) are respectively provided with an air inlet a (10-2) and an air outlet a (10-3), a vertical tube type indirect evaporative cooling section a (10-4) and a direct evaporative cooling section a (10-5) are sequentially arranged in the fresh air handling unit shell (10-1) according to the flowing direction of the inlet air, and the air outlet a (10-3) is communicated with the position of a corresponding end coil (11) in the data center through a pipeline.
6. The internally-cooled evaporative cooling chiller system for data centers of claim 5, it is characterized in that the vertical pipe type indirect evaporative cooling section a (10-4) comprises a vertical pipe heat exchanger a (10-6) corresponding to the air inlet a (10-2), a spraying device b (10-7) and a secondary air outlet a (10-8) are sequentially arranged above the vertical pipe heat exchanger a (10-6) from bottom to top, the novel air conditioning unit comprises a vertical pipe heat exchanger a (10-6), a water storage tank b (10-9) and a spraying device b (10-7), wherein the water storage tank b (10-9) is arranged below the vertical pipe heat exchanger a (10-6), the water storage tank b (10-9) is connected with the spraying device b (10-7) through a water supply pipe a (10-10), and the novel air conditioning unit further comprises a secondary air inlet a arranged on the side wall of a fresh air unit shell (10-1) and corresponding to the position below the vertical pipe heat exchanger a (10-6).
7. An internally-cooled evaporative cooling water cooling system for a data center as claimed in claim 6, wherein a circulating water pump a (10-11) is provided on the water supply pipe a (10-10), and a fan a (10-12) is provided in the secondary air outlet a (10-8).
8. An internally-cooled evaporative cooling water cooling system for a data center as claimed in claim 5, wherein the direct evaporative cooling section a (10-5) comprises a filler b (10-13), a spray device b (10-14) is arranged above the filler b (10-13), a water storage tank b (10-15) is arranged below the spray device (6-2), and the water storage tank b (10-15) and the spray device b (10-14) are connected through a water supply pipe b (10-16).
9. An internally-cooled evaporative cooling water chilling system for a data center as claimed in claim 8, wherein the water supply pipe b (10-16) is provided with a circulating water pump b (10-17).
10. An internally-cooled evaporative cooling water cooling system for a data center according to claim 1, wherein the plate heat exchanger (1) is connected with the end coil (11) through a pipeline G7 and a pipeline G8 respectively and forms a circulation loop with the end coil (11), the plate heat exchanger a (4) is connected with the pipeline G7 and the pipeline G8 through a pipeline G9 and a pipeline G10 respectively and forms a circulation loop with the end coil (11), a valve (5) and a valve a (7) are respectively arranged on the pipeline G7 and the pipeline G8 and on the side of the connection point of the pipeline G9 and the pipeline G10 close to the plate heat exchanger (1), and a water pump c (13) is arranged on the pipeline G7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110579761.7A CN113260233A (en) | 2021-05-26 | 2021-05-26 | Inner-cooling evaporative cooling cold water system for data center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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