CN111447787A - Evaporative natural cooling air conditioning system based on data center machine room - Google Patents
Evaporative natural cooling air conditioning system based on data center machine room Download PDFInfo
- Publication number
- CN111447787A CN111447787A CN202010216064.0A CN202010216064A CN111447787A CN 111447787 A CN111447787 A CN 111447787A CN 202010216064 A CN202010216064 A CN 202010216064A CN 111447787 A CN111447787 A CN 111447787A
- Authority
- CN
- China
- Prior art keywords
- air
- primary air
- data center
- indoor primary
- machine room
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 84
- 238000004378 air conditioning Methods 0.000 title claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 111
- 239000007921 spray Substances 0.000 claims description 24
- 238000005057 refrigeration Methods 0.000 claims description 17
- 239000003507 refrigerant Substances 0.000 claims description 5
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 241000282376 Panthera tigris Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- F24F13/28—Arrangement or mounting of filters
-
- 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
- F24F5/0003—Exclusively-fluid systems
-
- 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
- F24F5/001—Compression cycle type
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Central Air Conditioning (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an evaporative natural cooling air conditioning system based on a data center machine room, which comprises an indoor primary air return duct, an indoor primary air supply duct and outdoor secondary air channels on two sides of the data center machine room, wherein the indoor primary air return duct and the indoor primary air supply duct are communicated with the two outdoor secondary air channels to form a closed circulating air duct; a plurality of groups of server unit modules positioned between an indoor primary air return duct and an indoor primary air supply duct are arranged in the data center machine room, a hot channel is formed between the air outlet sides of two adjacent server unit modules, and a cold channel is formed between two groups of server cabinets in each group of server unit modules; each outdoor secondary air channel is internally provided with an indirect evaporative cooling unit, and two mutually vertical side walls as the walls of the outdoor secondary air channels are provided with an outdoor secondary air inlet and an outdoor secondary air outlet. The air conditioning system greatly reduces the energy consumption of the data center.
Description
Technical Field
The invention belongs to the technical field of air conditioning systems, and particularly relates to an evaporative natural cooling air conditioning system based on a data center machine room.
Background
With the rapid development of industries such as cloud computing, big data, internet of things and the like, the data center is used as a carrier for operation and storage of mass data, and the increase speed of quantity and scale is increased year by year. The data center is called as an electric tiger, and the operation of the IT equipment and the refrigeration system needs to consume a large amount of electric energy, and the IT equipment and the refrigeration system respectively occupy about 40% of the total energy consumption of the data center, so that a green data center with the concept of 'green, environmental protection, energy conservation and high efficiency' is advocated as a main development direction of data center construction.
From the viewpoint of energy saving, a scheme for directly utilizing an outdoor cold source including outdoor fresh air to cool a machine room or a scheme for indirectly utilizing the outdoor cold source including rotary wheel heat recovery and a cold water system to cool the machine room exists at present. When outdoor fresh air is used as a cold source, the cleanliness of the fresh air must be ensured, and certain requirements are made on the local air quality. When the traditional cold water system is used as a scheme for cooling the data center, the pipeline is large and complex, the later operation and maintenance difficulty is high, equipment of the air conditioning system occupies a large amount of space in the 'earth-sized and precious' data center, special requirements can be met for the placement position of the data center with high requirements, and the size and the installation position of the air conditioning equipment are limited. Therefore, these problems will impose high requirements on the construction of the data center.
Disclosure of Invention
The invention aims to provide an evaporative natural cooling air-conditioning system based on a data center machine room, which realizes that the data center utilizes natural cold sources to cool to the maximum extent, greatly reduces the energy consumption of the data center, enables evaporative cooling equipment to become a part of a data center building structure, and improves the space utilization rate of the data center.
The technical scheme adopted by the invention is that the evaporative natural cooling air conditioning system based on the data center machine room comprises an indoor primary air return duct arranged at the top of the data center machine room, an indoor primary air supply duct below the floor of the data center machine room and outdoor secondary air channels on two sides of the data center machine room, wherein the indoor primary air return duct and the indoor primary air supply duct are communicated with the two outdoor secondary air channels to form a closed circulating air duct;
the data center machine room is internally provided with a plurality of groups of server unit modules positioned between an indoor primary air return duct and an indoor primary air supply duct, each group of server unit modules consists of two server machine cabinets, the air outlet sides of two adjacent server unit modules are oppositely arranged, a heat channel is formed between the air outlet sides of the two adjacent server unit modules, and a cold channel is formed between two groups of server machine cabinets in each group of server unit modules;
a plurality of air return ports are formed in the side wall of one side, facing the plurality of groups of server unit modules, of the indoor primary air return duct, and the hot channel is communicated with the indoor primary air return duct through the air return ports; a plurality of tail end air supply outlets are formed in the side wall of one side, facing the plurality of groups of server unit modules, of the indoor primary air supply duct, and the cold channel is communicated with the indoor primary air supply duct through the tail end air supply outlets;
each outdoor secondary air channel is internally provided with an indirect evaporative cooling unit, an outdoor secondary air channel wall corresponding to the upper part of the indirect evaporative cooling unit is provided with an indoor primary air inlet and an indoor primary air return inlet, the outdoor secondary air channel is communicated with an indoor primary air return channel through the indoor primary air inlet and the indoor primary air return inlet, an indoor primary air supply outlet is arranged on an outdoor secondary air channel wall corresponding to the lower part of the indirect evaporative cooling unit, and the outdoor secondary air channel is communicated with the indoor primary air supply channel through the indoor primary air supply outlet; and an outdoor secondary air inlet and an outdoor secondary air outlet are respectively arranged on two mutually vertical side walls which are used as the walls of the outdoor secondary air channel.
The present invention is also characterized in that,
an indoor primary air blower is arranged in the indoor primary air return duct and close to the indoor primary air inlet.
An outdoor secondary air exhaust fan is arranged at the outdoor secondary air exhaust outlet; an air filter is arranged at the position of the outdoor secondary air inlet.
The indirect evaporative cooling unit comprises a first-stage indirect evaporative cooler and a second-stage indirect evaporative cooler which are sequentially arranged from top to bottom, a water collecting tank is arranged at the bottom of an outdoor secondary air channel, and the indirect evaporative cooling unit also comprises a vertically arranged medium-pressure spray water distributor which is positioned at an outdoor secondary air outlet of the first-stage indirect evaporative cooler and an outdoor secondary air inlet of the second-stage indirect evaporative cooler, the medium-pressure spray water distributor is connected with the water collecting tank through a water pipe, and a water pump is arranged on the water pipe.
The medium-pressure spraying water distributor comprises a water distribution pipe, a plurality of nozzles are arranged on the water distribution pipe, and the water distribution pipe is connected with a water collecting tank through a water pipe.
The first-stage indirect evaporative cooler and the second-stage indirect evaporative cooler are both plate-fin indirect evaporative coolers.
And cooling coils are arranged at the positions, close to the indoor primary air supply ports, in the indoor primary air supply ducts, and the two groups of cooling coils are connected with mechanical refrigeration modules arranged in a data center machine room through pipe networks.
The mechanical refrigeration module comprises an evaporator, a compressor, a condenser and a throttle valve which are sequentially connected through a refrigerant pipe and form a closed loop, and the evaporator is connected with the two cooling coils through a pipe network.
The pipe network comprises a chilled water supply pipe and a chilled water return pipe; one end of the chilled water supply pipe is connected with an outlet of the evaporator, and the other end of the chilled water supply pipe is divided into two branches which are respectively connected with inlets of the two cooling coils; one end of the chilled water return pipe is connected with an inlet of the evaporator, and the other end of the chilled water return pipe is divided into two branches which are respectively connected with outlets of the two cooling coils.
The invention has the beneficial effects that:
(1) according to the evaporative natural cooling air-conditioning system based on the data center machine room, the indirect evaporative cooler is ingeniously combined with the building, so that the space utilization rate of the data center is higher, the data machine room is cooled by using the wind side indirect evaporative cooling technology, the temperature and humidity range of the machine room is ensured, the machine room is not mixed with outside air, and the requirement of the machine room on the air quality is ensured.
(2) According to the evaporative natural cooling air-conditioning system based on the data center machine room, the indirect evaporative cooling unit adopts the two-stage indirect evaporative cooler, and the water distributor adopts a mode of combining the forward spraying and the reverse spraying, so that the evaporative cooling efficiency is greatly improved, and the energy-saving potential of the evaporative cooling technology is exerted to the greatest extent.
(3) The evaporative natural cooling air-conditioning system based on the data center machine room fully utilizes natural cold sources in winter and transition seasons, realizes free refrigeration and reduces the energy consumption of the data center.
(4) According to the evaporative natural cooling air conditioning system based on the data center machine room, the outdoor secondary air inlet and the outdoor secondary air outlet are separately arranged on the two mutually perpendicular side walls of the data center, so that the short circuit of the outdoor secondary air inlet and the outdoor secondary air outlet is avoided, and the energy efficiency of the air conditioning system is improved.
(5) The evaporative natural cooling air conditioning system based on the data center machine room is used in winter in severe cold areas, part of return air of the data center is used as secondary air to be mixed with outdoor secondary air, and damage to a server of the data center caused by condensate water generated due to too low temperature is prevented.
(6) Compared with an air conditioning water system, the evaporative natural cooling air conditioning system based on the data center machine room is simple in system form, short in construction period and easy to maintain and operate.
Drawings
FIG. 1 is a schematic structural diagram of an evaporative natural cooling air conditioning system based on a data center machine room;
fig. 2 is a schematic diagram of the indirect evaporative cooling unit of the air conditioning system of the present invention.
In the figure, 1, a data center machine room, 2, an indoor primary air return duct, 3, an indoor primary air blower, 4, an indoor primary air inlet, 5, an indoor primary air return opening, 6, a first stage indirect evaporative cooler, 7, an air filter, 8, an outdoor secondary air inlet, 9, a second stage indirect evaporative cooler, 10, an outdoor secondary air exhaust fan, 11, an outdoor secondary air exhaust opening, 12, an indoor primary air supply opening, 13, an indoor primary air supply duct, 14, a water collecting tank, 15, a cooling coil, 16, a water pump, 17, a medium pressure spray water distributor, 18, a water distribution pipe, 19, a hot channel, 20, a server cabinet, 21, a tail end supply opening, 22, a cold channel, 23, a chilled water supply pipe, 24, a chilled water return pipe, 25, an evaporator, 26, a compressor, 27, a condenser, 28, a throttle valve, 29. refrigerant pipe, 30 return air inlet.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention relates to an evaporative natural cooling air-conditioning system based on a data center machine room, which comprises an indoor primary air return duct 2 arranged at the top of the data center machine room 1, an indoor primary air supply duct 13 below the floor of the data center machine room 1 and outdoor secondary air channels at two sides of the wall of the data center machine room 1, wherein the indoor primary air return duct 2 and the indoor primary air supply duct 13 are communicated with the two outdoor secondary air channels to form a closed circulating air duct, as shown in a figure 1-2;
a plurality of groups of server unit modules positioned between an indoor primary air return duct 2 and an indoor primary air supply duct 13 are arranged in a data center machine room 1, each group of server unit modules consists of two server cabinets 20, the air outlet sides of two adjacent server unit modules are arranged oppositely, a hot channel 19 is formed between the air outlet sides of the two adjacent server unit modules, and a cold channel is formed between two groups of server cabinets 20 in each group of server unit modules; the data center machine room 1 adopts a mode that the air flow organization is separated from the downward feeding and upward returning channel 22 and the hot channel 19.
A plurality of air return openings 30 are formed in the side wall of one side, facing the plurality of groups of server unit modules, of the indoor primary air return duct 2, and the hot channel 19 is communicated with the indoor primary air return duct 2 through the air return openings 30; a plurality of tail end air supply outlets 21 are formed in the side wall of one side, facing the plurality of groups of server unit modules, of the indoor primary air supply duct 13, and the cold channel 22 is communicated with the indoor primary air supply duct 13 through the tail end air supply outlets 21;
each outdoor secondary air channel is internally provided with an indirect evaporative cooling unit, an outdoor secondary air channel wall corresponding to the upper part of the indirect evaporative cooling unit is provided with an indoor primary air inlet 4 and an indoor primary air return inlet 5, the outdoor secondary air channel is communicated with an indoor primary air return channel 2 through the indoor primary air inlet 4 and the indoor primary air return inlet 5, an outdoor secondary air channel wall corresponding to the lower part of the indirect evaporative cooling unit is provided with an indoor primary air supply outlet 12, and the outdoor secondary air channel is communicated with an indoor primary air supply channel 13 through the indoor primary air supply outlet 12; an outdoor secondary air inlet 8 and an outdoor secondary air outlet 11 are respectively arranged on two mutually vertical side walls as the walls of the outdoor secondary air channel.
An indoor primary air blower 3 is arranged in the indoor primary air return duct 2 and close to an indoor primary air inlet 4. The indoor primary air blower 3 is a centrifugal fan, and the outdoor secondary air exhaust fan 10 is an EC fan.
An outdoor secondary air exhaust fan 10 is arranged at the outdoor secondary air exhaust outlet 11; an air filter 7 is arranged at the outdoor secondary air inlet 8.
The indirect evaporative cooling unit comprises a first-stage indirect evaporative cooler 6 and a second-stage indirect evaporative cooler 9 which are sequentially arranged from top to bottom, a water collecting tank 14 is arranged at the bottom of an outdoor secondary air channel, the indirect evaporative cooling unit also comprises a vertically arranged medium-pressure spray water distributor 17, the medium-pressure spray water distributor 17 is positioned at an outdoor secondary air outlet of the first-stage indirect evaporative cooler 6 and an outdoor secondary air inlet of the second-stage indirect evaporative cooler 9, the medium-pressure spray water distributor 17 is connected with the water collecting tank 14 through a water pipe, and a water pump 16 is arranged on the water pipe.
The medium-pressure spray water distributor 17 comprises a water distribution pipe 18, a plurality of nozzles are arranged on the water distribution pipe 18, and the water distribution pipe 18 is connected with the water collecting tank 14 through a water pipe.
The first stage indirect evaporative cooler 6 and the second stage indirect evaporative cooler 9 are both plate-fin indirect evaporative coolers.
And cooling coils 15 are arranged in the indoor primary air supply duct 13 and close to the indoor primary air supply outlet 12, and the two groups of cooling coils 15 are connected with a mechanical refrigeration module arranged in the data center machine room 1 through a pipe network.
The mechanical refrigeration module is separately and independently arranged, the mechanical refrigeration module comprises an evaporator 25, a compressor 26, a condenser 27 and a throttle valve 28 which are sequentially connected through a refrigerant pipe 29 and form a closed loop, and the evaporator 25 is connected with the two cooling coils 15 through a pipe network. The indirect evaporative cooling unit and the mechanical refrigeration module run jointly, the indirect evaporative cooling unit is mainly used for cooling, and the mechanical refrigeration module is used for cooling.
The pipe network comprises a chilled water supply pipe 23 and a chilled water return pipe 24; chilled water produced by refrigerant in the evaporator 25 is connected to the end unit cooling coil 15 in the under-floor supply pipe of the data center through a chilled water supply pipe 23 and a chilled water return pipe 24. Specifically, one end of the chilled water supply pipe 23 is connected with an outlet of the evaporator 25, and the other end of the chilled water supply pipe 23 is divided into two branches which are respectively connected with inlets of the two cooling coils 15; one end of the chilled water return pipe 24 is connected with an inlet of the evaporator 25, and the other end of the chilled water return pipe 24 is divided into two branches which are respectively connected with outlets of the two cooling coils 15.
The invention relates to an evaporative natural cooling air-conditioning system based on a data center machine room, which comprises the following working processes:
according to the working process of primary air in a data machine room: the power that indoor primary air forced draught blower 3 in the indoor primary air return duct 2 of computer lab provided, make the return air of computer lab flow through the dry channel of first level indirect evaporative cooler 6 and second level indirect evaporative cooler 9 from indoor primary air return inlet 5, the outdoor secondary air of the room return air heat transfer for the wet channel side, the cooling of computer lab return air primary air is by two-stage cooling, rethread indoor primary air supply outlet 12 send into indoor primary air supply duct 13, finally cool and lower the temperature once more through cooling coil 15, the indoor primary air that cools off at last sends into cold aisle 22 from terminal supply outlet 21 and reduces the temperature of server rack 20 and gets into indoor primary air return duct 2 from hot aisle 19 again, so form and circulate, thereby reach the effect of cooling the data computer lab. In addition, return air of a part of data rooms enters an outdoor secondary air flow channel from an indoor primary air inlet 4 to be mixed with super-cooled outdoor secondary air, and therefore the phenomenon that condensation is caused due to the fact that indoor primary air is too low in temperature and water drops are brought into the data rooms to damage servers is avoided.
According to the working process of outdoor secondary air: the fresh air is purified and filtered by an outdoor secondary air inlet 8 through an air filter 7, then flows to wet channels of a first-stage indirect evaporative cooler 6 and a second-stage indirect evaporative cooler 9 in sequence to exchange heat, and finally carries heat outdoor secondary air to be discharged from an outdoor secondary air outlet 11 through power provided by an outdoor secondary air exhaust fan 10.
According to the working process of the water distribution system: the water distribution system of the indirect evaporative cooling unit comprises a medium-pressure spray water distributor 17, a water pump 16, a water distribution pipe 18 and a water collection tank 14, wherein the medium-pressure spray water distributor 17 is respectively arranged at an outdoor secondary air outlet of a first-stage indirect evaporative cooler 6 and an outdoor secondary air inlet of a second-stage indirect evaporative cooler 9, water in the water collection tank 14 is conveyed to the medium-pressure spray water distributor 17 through the water distribution pipe 18 by power provided by the water pump 16 for spray water distribution, the direction of spray water distribution of the first-stage indirect evaporative cooler 6 is opposite to the direction of the outdoor secondary air, the direction of spray water distribution of the second-stage indirect evaporative cooler 9 is the same as the direction of the outdoor secondary air, the water distribution mode adopts a mode of combining the forward direction and the reverse direction of spray and the outdoor secondary air, the heat exchange efficiency of the indirect evaporative cooler is improved, the service life of the indirect evaporative cooling technology is prolonged, and the energy consumption of the air conditioning system of the data machine room is reduced.
The evaporative natural cooling air-conditioning system based on the data center machine room has three working modes, and the working process is as follows:
(1) dry mode: in winter, when the external environment temperature is low, the air conditioning system operates in a dry mode. When the outdoor secondary air is fresh air with lower temperature, the outdoor secondary air enters from an outdoor secondary air inlet 8, is filtered by an air filter 7 and sequentially enters wet channels of a first-stage indirect evaporative cooler 6 and a second-stage indirect evaporative cooler 9 for heat exchange; when the outdoor secondary air is fresh air with low temperature, the air is mixed with return air of the data machine room through the indoor primary air inlet 4 for preheating, then enters the wet channel of the second-stage indirect evaporative cooler 9 for heat exchange, and then passes through the outdoor secondary air exhaust fan 10 and is exhausted from the outdoor secondary air exhaust outlet 11. The return air of the higher temperature of data computer lab gets into first order indirect evaporative cooler 6 and the indirect evaporative cooler 9 of second level in proper order through indoor primary air return air inlet 5 and is done the passageway and cooled down by microthermal outdoor secondary air cooling, indoor primary air supply air duct 13 is sent into to indoor primary air supply air outlet 12 of rethread, the indoor primary air that cools off at last sends into cold passageway 22 from terminal supply air outlet 21 after to server rack 20's cooling, get into indoor primary air return air duct 2 from hot passageway 19 again, so form the circulation, thereby reach the effect to data computer lab cooling.
(2) Wet mode: in the transition season, when the outside environment temperature is milder, the air conditioning system operates in the wet mode. At this time, the spray water distribution system of the indirect evaporative cooling unit is operated, and the mechanical refrigeration module is still not operated. By the power provided by the water pump 16, the water in the water collecting tank 14 is delivered to the medium-pressure spray water distributor 17 through the water distributing pipe 18 for spray water distribution, a layer of water film is formed in the wet channel of the first-stage indirect evaporative cooler 6 and the second-stage indirect evaporative cooler 9, heat and moisture exchange is carried out between the water film and outdoor secondary air, the indoor primary air at the side of the dry channel is cooled, the cooled indoor primary air is delivered to the indoor primary air delivery duct 13 through the indoor primary air delivery outlet 12, and finally delivered to the cold channel 22 from the tail delivery outlet 21 to cool the server cabinet 20 and then delivered to the indoor primary air return duct 2 from the hot channel 19, so that circulation is formed.
(3) Mixed mode: in hot summer, when the outdoor temperature is high and the wet bulb temperature is also high, the air conditioning system operates in the hybrid mode. At the moment, the spray water distribution system of the indirect evaporative cooling unit and the mechanical refrigeration module run simultaneously to jointly achieve the required refrigeration capacity. By the power provided by the water pump 16, the water in the water collecting tank 14 is conveyed to the medium-pressure spray water distributor 17 through the water distributing pipe 18 for spray water distribution, a layer of water film is formed in the wet channel of the first-stage indirect evaporative cooler 6 and the second-stage indirect evaporative cooler 9, heat and moisture exchange is carried out between the water film and outdoor secondary air, the indoor primary air at the side of the dry channel is cooled, the cooled indoor primary air is conveyed into the indoor primary air supply duct 13 through the indoor primary air supply outlet 12, the indoor primary air is cooled again through the cooling coil 15, and finally the cooled indoor primary air is conveyed into the cold channel 22 from the tail end supply outlet 21 to cool the server cabinet 20 and then enters the indoor primary air return duct 2 from the hot channel 19, so that circulation is formed. In this operation mode, chilled water produced by heat exchange with the evaporator 25 in the mechanical refrigeration module is supplied to the end device cooling coil 15 in the under-floor air supply pipe of the data center through the chilled water supply pipe 23 and the chilled water return pipe 24.
According to the evaporative natural cooling air-conditioning system based on the data center machine room, through the three operation modes, the natural cold source is fully utilized to carry out free refrigeration, and the time of evaporative cooling utilization is prolonged, so that the requirement of annual cooling of the data center is met, and the purposes of energy conservation and consumption reduction of the data center air-conditioning system are further achieved.
Claims (9)
1. The evaporative natural cooling air conditioning system based on the data center machine room is characterized by comprising an indoor primary air return duct (2) arranged at the top of the data center machine room (1), an indoor primary air supply duct (13) below the floor of the data center machine room (1) and outdoor secondary air channels on two sides of the data center machine room (1), wherein the indoor primary air return duct (2) and the indoor primary air supply duct (13) are communicated with the two outdoor secondary air channels to form a closed circulating air duct;
a plurality of groups of server unit modules are arranged in the data center machine room (1) and are positioned between an indoor primary air return duct (2) and an indoor primary air supply duct (13), each group of server unit modules consists of two server machine cabinets (20), the air outlet sides of two adjacent server unit modules are arranged oppositely, a hot channel (19) is formed between the air outlet sides of the two adjacent server unit modules, and a cold channel is formed between two groups of server machine cabinets (20) in each group of server unit modules;
a plurality of air return openings (30) are formed in the side wall, facing the side wall of the server unit modules, of the indoor primary air return duct (2), and the hot channel (19) is communicated with the indoor primary air return duct (2) through the air return openings (30); a plurality of tail end air supply outlets (21) are formed in the side wall, facing the side walls of the plurality of groups of server unit modules, of the indoor primary air supply duct (13), and the cold channel (22) is communicated with the indoor primary air supply duct (13) through the tail end air supply outlets (21);
each outdoor secondary air channel is internally provided with an indirect evaporative cooling unit, an outdoor secondary air channel wall corresponding to the upper part of the indirect evaporative cooling unit is provided with an indoor primary air inlet (4) and an indoor primary air return inlet (5), the outdoor secondary air channel is communicated with an indoor primary air return channel (2) through the indoor primary air inlet (4) and the indoor primary air return inlet (5), an outdoor secondary air channel wall corresponding to the lower part of the indirect evaporative cooling unit is provided with an indoor primary air supply outlet (12), and the outdoor secondary air channel is communicated with an indoor primary air supply channel (13) through the indoor primary air supply outlet (12); an outdoor secondary air inlet (8) and an outdoor secondary air outlet (11) are respectively arranged on two mutually vertical side walls as the walls of the outdoor secondary air channel.
2. The evaporative natural cooling air conditioning system based on the data center machine room as claimed in claim 1, wherein an indoor primary air blower (3) is arranged in each indoor primary air return duct (2) close to the indoor primary air inlet (4).
3. The evaporative natural cooling air conditioning system based on the data center machine room as claimed in claim 1, wherein an outdoor secondary air exhaust fan (10) is arranged at the outdoor secondary air exhaust outlet (11); an air filter (7) is arranged at the outdoor secondary air inlet (8).
4. The evaporative natural cooling air-conditioning system based on the data center machine room as claimed in claim 1, wherein the indirect evaporative cooling unit comprises a first-stage indirect evaporative cooler (6) and a second-stage indirect evaporative cooler (9) which are sequentially arranged from top to bottom, a water collecting tank (14) is arranged at the bottom of an outdoor secondary air channel, the system further comprises a vertically arranged medium-pressure spray water distributor (17), the medium-pressure spray water distributor (17) is positioned at an outdoor secondary air outlet of the first-stage indirect evaporative cooler (6) and an outdoor secondary air inlet of the second-stage indirect evaporative cooler (9), the medium-pressure spray water distributor (17) is connected with the water collecting tank (14) through a water pipe, and a water pump (16) is arranged on the water pipe.
5. The evaporative natural cooling air conditioning system based on the data center machine room as claimed in claim 4, wherein the medium-pressure spray water distributor (17) comprises a water distribution pipe (18), a plurality of nozzles are arranged on the water distribution pipe (18), and the water distribution pipe (18) is connected with the water collection tank (14) through a water pipe.
6. The evaporative natural cooling air-conditioning system based on the data center machine room as claimed in claim 4, wherein the first-stage indirect evaporative cooler (6) and the second-stage indirect evaporative cooler (9) are plate-fin indirect evaporative coolers.
7. The evaporative natural cooling air conditioning system based on the data center machine room as claimed in claim 1, wherein the cooling coils (15) are arranged in the indoor primary air supply duct (13) close to the indoor primary air supply outlet (12), and the two groups of cooling coils (15) are connected with a mechanical refrigeration module arranged in the data center machine room (1) through a pipe network.
8. The evaporative natural cooling air-conditioning system based on the data center machine room as claimed in claim 7, wherein the mechanical refrigeration module comprises an evaporator (25), a compressor (26), a condenser (27) and a throttle valve (28) which are sequentially connected through a refrigerant pipe (29) and form a closed loop, and the evaporator (25) is connected with the two cooling coils (15) through a pipe network.
9. The evaporative natural cooling air conditioning system based on the data center machine room as claimed in claim 8, wherein the pipe network comprises a chilled water supply pipe (23) and a chilled water return pipe (24); one end of the chilled water supply pipe (23) is connected with an outlet of the evaporator (25), and the other end of the chilled water supply pipe (23) is divided into two branches which are respectively connected with inlets of the two cooling coils (15); one end of the chilled water return pipe (24) is connected with an inlet of the evaporator (25), and the other end of the chilled water return pipe (24) is divided into two branches which are respectively connected with outlets of the two cooling coils (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010216064.0A CN111447787B (en) | 2020-03-25 | 2020-03-25 | Evaporation natural cooling air conditioning system based on data center machine room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010216064.0A CN111447787B (en) | 2020-03-25 | 2020-03-25 | Evaporation natural cooling air conditioning system based on data center machine room |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111447787A true CN111447787A (en) | 2020-07-24 |
| CN111447787B CN111447787B (en) | 2024-03-12 |
Family
ID=71649005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010216064.0A Active CN111447787B (en) | 2020-03-25 | 2020-03-25 | Evaporation natural cooling air conditioning system based on data center machine room |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111447787B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112097353A (en) * | 2020-09-16 | 2020-12-18 | 河北秦淮数据有限公司 | Cooling system and cooling method for data center machine room |
| CN112097354A (en) * | 2020-09-16 | 2020-12-18 | 河北秦淮数据有限公司 | Cooling system and cooling method for data center machine room |
| CN113028531A (en) * | 2021-03-15 | 2021-06-25 | 苏州热工研究院有限公司 | Energy-saving environment-friendly central air-conditioning system |
| CN113133274A (en) * | 2021-03-04 | 2021-07-16 | 湖北锐火科技有限公司 | Heat dissipation method of server |
| CN113873833A (en) * | 2021-09-18 | 2021-12-31 | 珠海格力电器股份有限公司 | Machine room air conditioning system and corresponding control method |
| CN114510842A (en) * | 2022-03-09 | 2022-05-17 | 中联云港数据科技股份有限公司 | Double-layer layout planning structure based on function continuity improvement of data center |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201497093U (en) * | 2009-09-07 | 2010-06-02 | 西安工程大学 | Layered and interleaved evaporative cooling air conditioning unit used for communication machine rooms |
| CN202092251U (en) * | 2011-05-09 | 2011-12-28 | 西安工程大学 | Air conditioner set combined with plate fin type indirect and direct devaporizers for machine room |
| KR101346747B1 (en) * | 2013-01-03 | 2014-01-02 | 주식회사 삼화에이스 | Air conditioning system |
| CN204084700U (en) * | 2014-09-03 | 2015-01-07 | 西安工程大学 | The air-conditioning that the runner being applicable to machine room size environment is combined with evaporative cooling unit |
| CN104534603A (en) * | 2015-01-23 | 2015-04-22 | 天津大学 | Countercurrent plate type dew-point indirect evaporative cooler with internal dividing structure, and channel clapboard |
| CN205065912U (en) * | 2015-09-21 | 2016-03-02 | 西安工程大学 | Heat pipe - heat recovery type evaporative cooling air -conditioning system suitable for data center |
| CN205261968U (en) * | 2015-11-19 | 2016-05-25 | 南京迪泽尔空调设备有限公司 | Heat pump type solar energy evaporation formula condensation air conditioning unit |
| US20160327289A1 (en) * | 2015-05-07 | 2016-11-10 | Ahmad Younis Mothfar | Portable evaporative cooler for vehicles |
| WO2017118213A1 (en) * | 2016-01-05 | 2017-07-13 | 中兴通讯股份有限公司 | Modular refrigeration apparatus |
| CN108224625A (en) * | 2017-12-19 | 2018-06-29 | 西安工程大学 | Data center's vertical pipe type indirect evaporation natural cooling cold supply system |
| CN208108368U (en) * | 2018-03-20 | 2018-11-16 | 西安工程大学 | The self-loopa cold supply system of data center's indirect evaporation natural cooling air-conditioner set |
| CN208572675U (en) * | 2018-06-28 | 2019-03-01 | 西安工程大学 | In conjunction with the Arid Area data center natural cooling air-conditioning system of the closing passage of heat |
| CN109458686A (en) * | 2018-10-30 | 2019-03-12 | 西安工程大学 | Data center evaporation cooling and mechanical refrigeration compound air-conditioning system |
| CN209165653U (en) * | 2018-10-25 | 2019-07-26 | 西安工程大学 | A kind of closed data center's Evaporative Cooling Air-conditioning System of the passage of heat |
| CN210153988U (en) * | 2018-12-26 | 2020-03-17 | 中兴通讯股份有限公司 | Spraying system and indirect evaporation refrigerating system |
| CN211745085U (en) * | 2020-03-25 | 2020-10-23 | 西安工程大学 | Evaporative natural cooling air-conditioning system coupled with data center building |
-
2020
- 2020-03-25 CN CN202010216064.0A patent/CN111447787B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201497093U (en) * | 2009-09-07 | 2010-06-02 | 西安工程大学 | Layered and interleaved evaporative cooling air conditioning unit used for communication machine rooms |
| CN202092251U (en) * | 2011-05-09 | 2011-12-28 | 西安工程大学 | Air conditioner set combined with plate fin type indirect and direct devaporizers for machine room |
| KR101346747B1 (en) * | 2013-01-03 | 2014-01-02 | 주식회사 삼화에이스 | Air conditioning system |
| CN204084700U (en) * | 2014-09-03 | 2015-01-07 | 西安工程大学 | The air-conditioning that the runner being applicable to machine room size environment is combined with evaporative cooling unit |
| CN104534603A (en) * | 2015-01-23 | 2015-04-22 | 天津大学 | Countercurrent plate type dew-point indirect evaporative cooler with internal dividing structure, and channel clapboard |
| US20160327289A1 (en) * | 2015-05-07 | 2016-11-10 | Ahmad Younis Mothfar | Portable evaporative cooler for vehicles |
| CN205065912U (en) * | 2015-09-21 | 2016-03-02 | 西安工程大学 | Heat pipe - heat recovery type evaporative cooling air -conditioning system suitable for data center |
| CN205261968U (en) * | 2015-11-19 | 2016-05-25 | 南京迪泽尔空调设备有限公司 | Heat pump type solar energy evaporation formula condensation air conditioning unit |
| WO2017118213A1 (en) * | 2016-01-05 | 2017-07-13 | 中兴通讯股份有限公司 | Modular refrigeration apparatus |
| CN108224625A (en) * | 2017-12-19 | 2018-06-29 | 西安工程大学 | Data center's vertical pipe type indirect evaporation natural cooling cold supply system |
| CN208108368U (en) * | 2018-03-20 | 2018-11-16 | 西安工程大学 | The self-loopa cold supply system of data center's indirect evaporation natural cooling air-conditioner set |
| CN208572675U (en) * | 2018-06-28 | 2019-03-01 | 西安工程大学 | In conjunction with the Arid Area data center natural cooling air-conditioning system of the closing passage of heat |
| CN209165653U (en) * | 2018-10-25 | 2019-07-26 | 西安工程大学 | A kind of closed data center's Evaporative Cooling Air-conditioning System of the passage of heat |
| CN109458686A (en) * | 2018-10-30 | 2019-03-12 | 西安工程大学 | Data center evaporation cooling and mechanical refrigeration compound air-conditioning system |
| CN210153988U (en) * | 2018-12-26 | 2020-03-17 | 中兴通讯股份有限公司 | Spraying system and indirect evaporation refrigerating system |
| CN211745085U (en) * | 2020-03-25 | 2020-10-23 | 西安工程大学 | Evaporative natural cooling air-conditioning system coupled with data center building |
Non-Patent Citations (4)
| Title |
|---|
| 耿志超;黄翔;折建利;褚俊杰;: "间接蒸发冷却空调系统在国内外数据中心的应用", 制冷与空调(四川), no. 05 * |
| 赵军: "一种组合式蒸发冷却空调机组的性能测试与分析", 制冷, pages 2 - 4 * |
| 郑久军;黄翔;王晓杰;狄育慧;: "热管式两级蒸发冷却空调系统性能实验研究", 西安工程科技学院学报, no. 01 * |
| 黄翔: "高压喷气间接蒸发冷却对空压机吸气降温研究", 棉纺织技术, pages 2 - 3 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112097353A (en) * | 2020-09-16 | 2020-12-18 | 河北秦淮数据有限公司 | Cooling system and cooling method for data center machine room |
| CN112097354A (en) * | 2020-09-16 | 2020-12-18 | 河北秦淮数据有限公司 | Cooling system and cooling method for data center machine room |
| CN113133274A (en) * | 2021-03-04 | 2021-07-16 | 湖北锐火科技有限公司 | Heat dissipation method of server |
| CN113028531A (en) * | 2021-03-15 | 2021-06-25 | 苏州热工研究院有限公司 | Energy-saving environment-friendly central air-conditioning system |
| CN113873833A (en) * | 2021-09-18 | 2021-12-31 | 珠海格力电器股份有限公司 | Machine room air conditioning system and corresponding control method |
| CN113873833B (en) * | 2021-09-18 | 2022-07-22 | 珠海格力电器股份有限公司 | Machine room air conditioning system and corresponding control method |
| CN114510842A (en) * | 2022-03-09 | 2022-05-17 | 中联云港数据科技股份有限公司 | Double-layer layout planning structure based on function continuity improvement of data center |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111447787B (en) | 2024-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111447787B (en) | Evaporation natural cooling air conditioning system based on data center machine room | |
| CN110191619B (en) | Modularized air supply air-conditioning system suitable for indirect evaporation natural cooling of data center | |
| CN111295085A (en) | Evaporative cooling air-conditioning system for data center based on air cooling and water cooling combined unit | |
| CN205065912U (en) | Heat pipe - heat recovery type evaporative cooling air -conditioning system suitable for data center | |
| CN212116000U (en) | Air-cooling and water-cooling combined evaporative cooling air-conditioning system for data center | |
| CN211792609U (en) | Indirect evaporative cooling air conditioning unit for data center | |
| CN105135572A (en) | Heat pipe composite heat recovery type evaporative cooling air-conditioning system for data center | |
| CN110769646B (en) | Energy-saving and efficient evaporative cooling air conditioning system suitable for data center | |
| CN110351986B (en) | Partition internal cooling type cabinet heat dissipation system with composite cold source | |
| CN110691492A (en) | Refrigeration system and data center | |
| CN211745085U (en) | Evaporative natural cooling air-conditioning system coupled with data center building | |
| CN111295084A (en) | Indirect evaporative cooling air conditioning unit using condenser and evaporator | |
| CN211345639U (en) | Air conditioning system for data center combining evaporative cooling and lithium bromide absorption refrigeration | |
| CN110631149B (en) | High-efficiency energy-saving evaporation refrigeration machine room air conditioning device | |
| CN211953105U (en) | Cooling system | |
| CN110043986A (en) | A kind of air-conditioning system and the data center using it | |
| CN210202326U (en) | Modularized air supply air-conditioning system for data center based on indirect evaporation natural cooling | |
| CN203421865U (en) | Data room cooling system with cold area and hot area divided | |
| CN213126906U (en) | Double-cooling type heat pipe heat exchange device for data center | |
| CN202033206U (en) | Fresh air heat recovery experiment device utilizing evaporative cooling | |
| CN214038741U (en) | Natural cooling air conditioning system | |
| CN111219819B (en) | Refrigeration system | |
| CN211345649U (en) | Photovoltaic direct-drive dew point indirect evaporative cooling air conditioning system for data center | |
| CN209806283U (en) | Combined container data center | |
| CN206347649U (en) | Whole year operation air processor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |