CN111447787B - Evaporation natural cooling air conditioning system based on data center machine room - Google Patents
Evaporation natural cooling air conditioning system based on data center machine room Download PDFInfo
- Publication number
- CN111447787B CN111447787B CN202010216064.0A CN202010216064A CN111447787B CN 111447787 B CN111447787 B CN 111447787B CN 202010216064 A CN202010216064 A CN 202010216064A CN 111447787 B CN111447787 B CN 111447787B
- Authority
- CN
- China
- Prior art keywords
- primary air
- air
- indoor primary
- channel
- data center
- 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.)
- Active
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 83
- 238000004378 air conditioning Methods 0.000 title claims abstract description 34
- 238000001704 evaporation Methods 0.000 title description 3
- 230000008020 evaporation Effects 0.000 title description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 109
- 239000007921 spray Substances 0.000 claims description 26
- 238000005057 refrigeration Methods 0.000 claims description 15
- 239000003507 refrigerant Substances 0.000 claims description 5
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- 238000010276 construction 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
- 238000005516 engineering process Methods 0.000 description 2
- 238000005507 spraying Methods 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
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 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
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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 channel, an indoor primary air delivery channel and outdoor secondary air channels on two sides of the data center machine room, wherein the indoor primary air return channel and the indoor primary air delivery channel are communicated with the two outdoor secondary air channels to form a closed circulating air channel; a plurality of groups of server unit modules positioned between the indoor primary air return duct and the indoor primary air delivery 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; an indirect evaporative cooling unit is arranged in each outdoor secondary air channel, and an outdoor secondary air inlet and an outdoor secondary air outlet are arranged on two mutually perpendicular side walls serving as the walls of the outdoor secondary air channels. 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 massive data operation and storage, and the number and scale growth speed is increased year by year. The data center is called as an "electric tiger", mainly because IT equipment and a refrigerating system are operated to consume a large amount of electric energy, and the two occupy about 40% of the total energy consumption of the data center, so that a green data center with the concept of "green, environment-friendly, energy-saving and efficient" is advocated as a main development direction of data center construction.
From the aspect of energy conservation, the scheme of directly utilizing an outdoor cold source including outdoor fresh air to cool a machine room or the scheme of indirectly utilizing the outdoor cold source including runner heat recovery and a cold water system to cool the machine room is currently available. When outdoor fresh air is used as a cold source, the cleanliness of the fresh air is ensured, and certain requirements on the local air quality are met. When the traditional cold water system is adopted as a cooling scheme of the data center, the pipeline is huge and complex, the later operation and maintenance difficulty is high, and the equipment of the air conditioning system occupies a large amount of space in the data center with 'earth' and 'gold', and has special requirements on the placement position of the data center with high requirements, so that the size and the installation position of the air conditioning equipment are limited. Therefore, these problems place high demands on the construction of data centers.
Disclosure of Invention
The invention aims to provide an evaporative natural cooling air conditioning system based on a data center machine room, which realizes the maximum utilization of natural cold source cooling of a data center, 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 delivery 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 delivery duct are communicated with the two outdoor secondary air channels to form a closed circulating duct;
a plurality of groups of server unit modules positioned between the indoor primary air return duct and the indoor primary air delivery duct are arranged in the data center machine room, each group of server unit modules consists of two server 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 the two groups of server cabinets in each group of server unit modules;
a plurality of air return openings are arranged on the side wall of one side of the indoor primary air return channel facing the plurality of groups of server unit modules, and the heat channel is communicated with the indoor primary air return channel through the air return openings; a plurality of tail end air supply outlets are arranged on the side wall of the indoor primary air supply channel facing the server unit modules, and the cold channel is communicated with the indoor primary air supply channel through the tail end air supply outlets;
an indirect evaporative cooling unit is arranged in each outdoor secondary air channel, an indoor primary air inlet and an indoor primary air return opening are arranged on the wall of the outdoor secondary air channel corresponding to the upper part of the indirect evaporative cooling unit, the outdoor secondary air channels are communicated with the indoor primary air return channels through the indoor primary air inlet and the indoor primary air return openings, an indoor primary air supply opening is arranged on the wall of the outdoor secondary air channel corresponding to the lower part of the indirect evaporative cooling unit, and the outdoor secondary air channels are communicated with the indoor primary air supply channels through the indoor primary air supply openings; two mutually perpendicular side walls serving as the walls of the outdoor secondary air channel are respectively provided with an outdoor secondary air inlet and an outdoor secondary air outlet.
The present invention is also characterized in that,
indoor primary air blowers are 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 opening; an air filter is arranged at 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, the indirect evaporative cooling unit further comprises a medium-pressure spray water distributor which is vertically arranged, the medium-pressure spray water distributor is positioned at an outdoor secondary air outlet of the first stage indirect evaporative cooler and an inlet of outdoor secondary air 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 spray 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 the water collection tank through a water pipe.
The first stage indirect evaporative cooler and the second stage indirect evaporative cooler are all plate-fin indirect evaporative coolers.
And cooling coils are arranged in the indoor primary air delivery duct and close to the indoor primary air delivery opening, and the two groups of cooling coils are connected with a mechanical refrigeration module arranged in a data center machine room through a pipe network.
The mechanical refrigeration module comprises an evaporator, a compressor, a condenser and a throttle valve which are connected sequentially through refrigerant pipes 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 the 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 the inlet of the evaporator, and the other end of the chilled water return pipe is divided into two branches which are respectively connected with the outlets of the two cooling coils.
The beneficial effects of the invention are as follows:
(1) According to the evaporative natural cooling air conditioning system based on the data center machine room, the indirect evaporative cooler is skillfully combined with the building, so that the space utilization rate of the data center is higher, the air side indirect evaporative cooling technology is utilized to cool the data machine room, the temperature and humidity range of the machine room is ensured, and meanwhile, the air is not mixed with the outside air, so that the air quality requirement of the machine room 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 forward spraying and 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) According to the evaporative natural cooling air conditioning system based on the data center machine room, natural cold sources are fully utilized in winter and transitional seasons, free refrigeration is realized, and the energy consumption of the data center is reduced.
(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 side walls of the data center, which are perpendicular to each other, so that the outdoor secondary air inlet and the outdoor secondary air outlet are prevented from being short-circuited, and the energy efficiency of the air conditioning system is further improved.
(5) According to the evaporative natural cooling air conditioning system based on the data center machine room, when the system is used in winter in severe cold areas, a part of return air of the data center is used as secondary air to be mixed with outdoor secondary air, so that damage to a server of the data center machine room caused by condensate water generated by 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 diagram of the evaporative natural cooling air conditioning system based on a data center machine room;
fig. 2 is a schematic diagram of an indirect evaporative cooling unit of the air conditioning system of the present invention.
In the drawings, 1 a data center room, 2 a room primary air return duct, 3 a room primary air blower, 4 a room primary air intake, 5 a room primary air return duct, 6 a first stage indirect evaporative cooler, 7 an air filter, 8 an outdoor secondary air intake, 9 a second stage indirect evaporative cooler, 10 an outdoor secondary air exhaust fan, 11 an outdoor secondary air exhaust port, 12 a room primary air supply duct, 13 a room primary air supply duct, 14 a header tank, 15 a cooling coil, 16 a water pump, 17 a medium pressure spray water distributor, 18 a water distribution pipe, 19 a heat channel, 20 a server cabinet, 21 a terminal air supply port, 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 a refrigerant pipe, 30 a return port.
Detailed Description
The invention will be described in detail below with reference to the drawings and the detailed description.
The invention discloses an evaporative natural cooling air conditioning system based on a data center machine room, which is shown in fig. 1-2, and comprises an indoor primary air return duct 2 arranged at the top of the data center machine room 1, an indoor primary air delivery duct 13 arranged below the floor of the data center machine room 1 and outdoor secondary air channels arranged on 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 delivery 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 positioned between the indoor primary air return duct 2 and the indoor primary air delivery duct 13 are arranged in the 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 oppositely arranged, a heat channel 19 is formed between the air outlet sides of the two adjacent server unit modules, and a cold channel is formed between the two groups of server cabinets 20 in each group of server unit modules; the data center room 1 airflow organization takes the form of a down feed and up return, cold aisle 22 and hot aisle 19 separated.
A plurality of return air inlets 30 are arranged on the side wall of the indoor primary air return air channel 2 facing the plurality of groups of server unit modules, and the heat channel 19 is communicated with the indoor primary air return air channel 2 through the return air inlets 30; a plurality of tail end air supply outlets 21 are arranged on the side wall of the indoor primary air supply duct 13 facing the server unit modules, and a cold channel 22 is communicated with the indoor primary air supply duct 13 through the tail end air supply outlets 21;
an indirect evaporative cooling unit is arranged in each outdoor secondary air channel, an indoor primary air inlet 4 and an indoor primary air return opening 5 are arranged on the wall of the outdoor secondary air channel corresponding to the upper part of the indirect evaporative cooling unit, the outdoor secondary air channels are communicated with the indoor primary air return duct 2 through the indoor primary air inlet 4 and the indoor primary air return opening 5, an indoor primary air supply opening 12 is arranged on the wall of the outdoor secondary air channel corresponding to the lower part of the indirect evaporative cooling unit, and the outdoor secondary air channels are communicated with the indoor primary air supply duct 13 through the indoor primary air supply opening 12; two mutually perpendicular side walls serving as the walls of the outdoor secondary air channel are respectively provided with an outdoor secondary air inlet 8 and an outdoor secondary air outlet 11.
Indoor primary air blowers 3 are arranged in the indoor primary air return duct 2 and close to the indoor primary air inlet 4. The indoor primary air blower 3 is a centrifugal blower, and the outdoor secondary air exhaust fan 10 is an EC blower.
An outdoor secondary air exhaust fan 10 is arranged at the outdoor secondary air exhaust port 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 further comprises a medium-pressure spray water distributor 17 which is vertically arranged, 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 inlet of outdoor secondary air 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 collection tank 14 through a water pipe.
The first stage indirect evaporative cooler 6 and the second stage indirect evaporative cooler 9 are all plate-fin indirect evaporative coolers.
The indoor primary air delivery duct 13 is internally provided with cooling coils 15 close to the indoor primary air delivery opening 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, and 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, wherein 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 are operated in a combined mode, the cooling of the indirect evaporative cooling unit is taken as a main part, and the cooling of the mechanical refrigeration module is taken as an auxiliary part.
The pipe network comprises a chilled water supply pipe 23 and a chilled water return pipe 24; chilled water produced by the refrigerant in the evaporator 25 is connected through chilled water supply piping 23, chilled water return piping 24 to the end unit cooling coils 15 in the underfloor air supply line of the data center. Specifically, one end of the chilled water supply pipe 23 is connected with the 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 the 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 discloses an evaporation natural cooling air conditioning system based on a data center machine room, which comprises the following working processes:
according to the working process of the primary air in the data machine room: the power provided by the indoor primary air blower 3 in the indoor primary air return duct 2 of the machine room enables the return air of the machine room to flow through the dry channels of the first-stage indirect evaporative cooler 6 and the second-stage indirect evaporative cooler 9 from the indoor primary air return duct 5, the return air of the machine room transfers heat to the outdoor secondary air on the wet channel side, the return air of the machine room is cooled by two stages, the return air of the machine room is fed into the indoor primary air supply duct 13 through the indoor primary air supply duct 12, finally cooled again through the cooling coil 15, and finally the cooled indoor primary air is fed into the cold channel 22 from the tail end air supply duct 21 to reduce the temperature of the server cabinet 20 and then enters the indoor primary air return duct 2 from the hot channel 19, so that circulation is formed, and the effect of cooling the data machine room is achieved. In addition, a part of return air of the data machine room enters a flow channel of outdoor secondary air from the indoor primary air inlet 4 and is mixed with supercooled outdoor secondary air, so that the phenomenon that the temperature of the indoor primary air is too low to form dew is prevented, and water drops are brought into the data machine room to cause harm to a server.
According to the working process of outdoor secondary air: after the fresh air passes through the air filter 7 through the outdoor secondary air inlet 8 and is purified and filtered, the fresh air sequentially flows to the first-stage indirect evaporative cooler 6 and the second-stage indirect evaporative cooler 9 to exchange heat through wet channels, and then the fresh air is subjected to power provided by the outdoor secondary air exhaust fan 10, and finally the outdoor secondary air carrying heat is exhausted from the outdoor secondary air exhaust port 11.
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 collecting tank 14, wherein the medium-pressure spray water distributor 17 is respectively arranged 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, water in the water collecting tank 14 is conveyed to the medium-pressure spray water distributor 17 through the water distribution pipe 18 for spray water distribution by virtue of power provided by the water pump 16, the spray water distribution direction of the first-stage indirect evaporative cooler 6 is opposite to the outdoor secondary air, and the spray water distribution direction of the second-stage indirect evaporative cooler 9 is the same as the outdoor secondary air.
The invention discloses an evaporative natural cooling air conditioning system based on a data center machine room, which has three working modes, wherein the working process is as follows:
(1) Dry mode: in winter, when the outside ambient temperature is low, the air conditioning system operates in dry mode. At the moment, a spray water distribution system and a mechanical refrigeration module of the indirect evaporative cooling unit do not operate, when outdoor secondary air is low-temperature fresh air, 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 excessively low-temperature fresh air, the outdoor secondary air and the return air of the data machine room passing through the indoor primary air inlet 4 are mixed and preheated, then enter a wet channel of the second inter-stage evaporative cooler 9 for heat exchange, and are discharged from the outdoor secondary air outlet 11 through the outdoor secondary air exhaust fan 10. The return air with higher temperature in the data machine room sequentially enters the first-stage indirect evaporative cooler 6 and the second-stage indirect evaporative cooler 9 through the indoor primary air return opening 5, is cooled by low-temperature outdoor secondary air, is sent into the indoor primary air delivery duct 13 through the indoor primary air delivery opening 12, and finally, the cooled indoor primary air is sent into the cooling channel 22 from the tail end air delivery opening 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, and the effect of cooling the data machine room is achieved.
(2) Wet mode: in the transitional season, the air conditioning system operates in the wet mode when the outside ambient temperature is warmer. 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. The water in the water collection tank 14 is conveyed to the medium-pressure spray water distributor 17 through the water distribution pipe 18 for spray water distribution by the power provided by the water pump 16, 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 with outdoor secondary air, primary air in the side of the dry channel is cooled, cooled indoor primary air is conveyed into the indoor primary air delivery channel 13 through the indoor primary air supply opening 12, finally conveyed into the cold channel 22 from the tail end air supply opening 21 for cooling the server cabinet 20, and then enters the indoor primary air return channel 2 from the hot channel 19, so that circulation is formed.
(3) Hybrid mode: in hot summer, the air conditioning system operates in a hybrid mode when the outdoor temperature is high and the wet bulb temperature is also high. At the moment, the spray water distribution system of the indirect evaporative cooling unit and the mechanical refrigeration module operate simultaneously to jointly achieve the required refrigeration capacity. The water in the water collecting tank 14 is conveyed to the medium-pressure spray water distributor 17 through the water distribution pipe 18 for spray water distribution by the power provided by the water pump 16, 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 with outdoor secondary air, primary air in the side of the dry channel is cooled, cooled indoor primary air is conveyed into the indoor primary air delivery channel 13 through the indoor primary air delivery opening 12 and then cooled again with the cooling coil 15, finally, the cooled primary air is conveyed into the cooling channel 22 from the tail end air delivery opening 21 for cooling the server cabinet 20 and then enters the indoor primary air return channel 2 from the hot channel 19, and circulation is formed. In this mode of operation, chilled water produced by heat exchange with the evaporator 25 in the mechanical refrigeration module is supplied to the end unit cooling coil 15 in the underfloor air supply line of the data center via chilled water supply line 23 and chilled water return line 24.
According to the evaporative natural cooling air conditioning system based on the data center machine room, through the three operation modes, natural cold sources are fully utilized to perform free refrigeration, the time for utilizing the evaporative cooling is prolonged, the annual cooling requirement of the data center is met, and the purposes of energy conservation and consumption reduction of the data center air conditioning system are achieved.
Claims (6)
1. The evaporative natural cooling air conditioning system based on the data center machine room is characterized by comprising an indoor primary air return channel (2) arranged at the top of the data center machine room (1), an indoor primary air delivery channel (13) arranged below the floor of the data center machine room (1) and outdoor secondary air channels arranged at two sides of the data center machine room (1), wherein the indoor primary air return channel (2) and the indoor primary air delivery channel (13) are communicated with the two outdoor secondary air channels to form a closed circulating channel;
a plurality of groups of server unit modules positioned between the indoor primary air return duct (2) and the indoor primary air delivery duct (13) are arranged in the 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 oppositely arranged, a heat channel (19) is formed between the air outlet sides of the two adjacent server unit modules, and a cold channel is formed between the two groups of server cabinets (20) in each group of server unit modules;
a plurality of air return openings (30) are formed in the side wall, facing to one side of the server unit modules, of the indoor primary air return duct (2), and the heat 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 arranged on the side wall of the indoor primary air supply duct (13) facing to one side of the server unit modules, and the cold channel (22) is communicated with the indoor primary air supply duct (13) through the tail end air supply outlets (21);
an indirect evaporative cooling unit is arranged in each outdoor secondary air channel, an indoor primary air inlet (4) and an indoor primary air return opening (5) are arranged on the wall of the outdoor secondary air channel corresponding to the upper part of the indirect evaporative cooling unit, the outdoor secondary air channels are communicated with the indoor primary air return opening (2) through the indoor primary air inlet (4) and the indoor primary air return opening (5), an indoor primary air supply opening (12) is arranged on the wall of the outdoor secondary air channel corresponding to the lower part of the indirect evaporative cooling unit, and the outdoor secondary air channels are communicated with the indoor primary air supply opening (13) through the indoor primary air supply opening (12); an outdoor secondary air inlet (8) and an outdoor secondary air outlet (11) are respectively arranged on two mutually perpendicular side walls serving 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 the indoor primary air inlet (4);
an outdoor secondary air exhaust fan (10) is arranged at the outdoor secondary air exhaust opening (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 further comprises a medium-pressure spray water distributor (17) which is vertically arranged, 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.
2. The evaporative natural cooling air conditioning system based on the data center machine room according to claim 1, 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.
3. The data center room-based evaporative natural cooling air conditioning system according to claim 1, wherein the first stage indirect evaporative cooler (6) and the second stage indirect evaporative cooler (9) are both plate-fin indirect evaporative coolers.
4. The data center room-based evaporative natural cooling air conditioning system according to claim 1, wherein cooling coils (15) are arranged in the indoor primary air delivery duct (13) close to the indoor primary air delivery opening (12), and the two groups of cooling coils (15) are connected with a mechanical refrigeration module arranged in the data center room (1) through a pipe network.
5. The data center room-based evaporative natural cooling air conditioning system according to claim 4, 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.
6. The data center room-based evaporative natural cooling air conditioning system according to claim 5, wherein the pipe network comprises a chilled water supply pipe (23) and a chilled water return pipe (24); one end of a 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 a chilled water return pipe (24) is connected with an inlet of an 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 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 CN111447787A (en) | 2020-07-24 |
| CN111447787B true 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) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN113133274B (en) * | 2021-03-04 | 2022-11-01 | 湖北锐火科技有限公司 | Heat dissipation method of server |
| CN113028531B (en) * | 2021-03-15 | 2023-04-28 | 苏州热工研究院有限公司 | Energy-saving environment-friendly central air conditioning system |
| 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 |
Citations (15)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9612026B2 (en) * | 2015-05-07 | 2017-04-04 | Ahmad Younis Mothfar | Portable evaporative cooler for vehicles |
-
2020
- 2020-03-25 CN CN202010216064.0A patent/CN111447787B/en active Active
Patent Citations (15)
| 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 |
| 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).2017,(第05期),全文. * |
| 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.2008,2-4. * |
| 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.2007,(第01期),全文. * |
| 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.2014,2-3. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111447787A (en) | 2020-07-24 |
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 | |
| CN211792609U (en) | Indirect evaporative cooling air conditioning unit for data center | |
| CN110769646B (en) | Energy-saving and efficient 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 | |
| CN112254236B (en) | Indirect evaporative cooling cold water system combining mechanical refrigeration and switching method | |
| CN211745085U (en) | Evaporative natural cooling air-conditioning system coupled with data center building | |
| CN103322730A (en) | Refrigerating system for data machine room with cold area and hot area | |
| CN111295084A (en) | Indirect evaporative cooling air conditioning unit using condenser and evaporator | |
| CN202734118U (en) | Large temperature difference air conditioning system used for data center heat removal | |
| CN110631149B (en) | High-efficiency energy-saving evaporation refrigeration machine room air conditioning device | |
| CN210165499U (en) | Coupling type air conditioning system for data center | |
| CN102818326A (en) | Large temperature difference air conditioning system for heat extraction of data center and using method thereof | |
| CN217636258U (en) | Evaporative cooling water chilling unit | |
| CN217274603U (en) | Indirect evaporation and compression type refrigeration composite air conditioning system for data center | |
| CN203421865U (en) | Data room cooling system with cold area and hot area divided | |
| CN206347649U (en) | Whole year operation air processor | |
| CN210202326U (en) | Modularized air supply air-conditioning system for data center based on indirect evaporation natural cooling | |
| CN215529686U (en) | Cold water type cold station system | |
| CN210568960U (en) | Anti-freezing machine room air conditioning device with efficient heat exchange at user side | |
| CN111219819B (en) | Refrigeration system | |
| CN209857285U (en) | Machine room water-saving air conditioning system with closed cooling water and chilled water capable of running in series | |
| CN112856869A (en) | Efficient parallel oil-free multi-handpiece evaporation refrigeration unit with cold energy recovery function | |
| CN111609498A (en) | Machine room heat extraction system for pre-refrigeration by utilizing heat pipe cold wall |
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 |