CN110043986A - A kind of air-conditioning system and the data center using it - Google Patents
A kind of air-conditioning system and the data center using it Download PDFInfo
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- CN110043986A CN110043986A CN201810034607.XA CN201810034607A CN110043986A CN 110043986 A CN110043986 A CN 110043986A CN 201810034607 A CN201810034607 A CN 201810034607A CN 110043986 A CN110043986 A CN 110043986A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 68
- 238000001816 cooling Methods 0.000 claims abstract description 128
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 230000003068 static effect Effects 0.000 claims description 30
- 238000002955 isolation Methods 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 15
- 238000005265 energy consumption Methods 0.000 abstract description 12
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 11
- 238000005507 spraying Methods 0.000 description 9
- 230000009467 reduction Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 239000000498 cooling water Substances 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 238000005057 refrigeration Methods 0.000 description 6
- 238000004134 energy conservation Methods 0.000 description 5
- 230000003749 cleanliness Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 238000007710 freezing Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000013473 artificial intelligence Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
-
- 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
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0035—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using evaporation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20718—Forced ventilation of a gaseous coolant
- H05K7/20745—Forced ventilation of a gaseous coolant within rooms for removing heat from cabinets, e.g. by air conditioning device
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a kind of air-conditioning system and using its data center, it is related to air-conditioning technical field.One specific embodiment of the air-conditioning system includes: indirect evaporating-cooling equipment, is arranged on computer room roof；The return air inlet of indirect evaporating-cooling equipment is connected to the first computer room space in the computer room, for the hot-air in the computer room to be sucked the indirect evaporating-cooling equipment；The hot-air is cooled to cold air by indirect evaporating-cooling equipment；The air outlet of indirect evaporating-cooling equipment is connected to the second computer room space in the computer room, for the cold air to be sent into the computer room.The embodiment can solve data center machine room air-conditioning system in the prior art and quickly can not independently deliver, build the problem that delivery cycle is longer and natural cooling application region is limited, effectively simplify the complexity of air-conditioning system, construction is greatly decreased, realizes the independent rapid deployment of air-conditioning system and computer room；Air conditioning energy consumption is greatly reduced, realizes energy-saving.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioning system and a data center adopting the same.
Background
The Technology of internet Technology is continuously innovative and developed, from cloud computing to big data to AI (artificial intelligence), and the innovative and revolutionary Technology is promoting the ICT (information communication Technology) industry and the whole society to move towards the digital and intelligent era. The growth of massive data and the continuous expansion of infrastructure requirements have led to a substantial increase in the scale and number of data centers being built.
The construction scale of the data center is continuously enlarged, large and ultra-large data centers become the mainstream trend of the data center construction, and in the face of huge construction engineering quantity and a lengthy construction period, how to quickly construct the data center to respond to the demand of data increase becomes a problem that needs to be mainly solved for the data center construction.
Meanwhile, a large-scale and ultra-large-scale data center carries tens of thousands of hardware devices to operate, and huge electric power cost is generated each year after the data center is put into operation formally, wherein about 30% -40% of electric power is used for consumption of an air conditioning system of the data center. The high energy consumption of the data center not only brings heavy burden to enterprises, but also causes huge energy waste, and seriously restricts the development of the data center. Therefore, energy saving and consumption reduction of the data center, especially energy saving and consumption reduction of the air conditioning system of the data center, are inevitable to become the main direction of innovation and development of the data center.
As shown in fig. 1, the air conditioning system of the current large-scale or ultra-large-scale data center mainly adopts a large-scale water-cooling chilled water system 100, a cold source adopts a centrifugal/screw water chiller 101, a cooling water pump 102 is arranged on the cooling water side of the water chiller, and a cooling tower 104 is connected with the water chiller 101 through a cooling water pipeline 103 to form cooling water side circulation; a chilled water pump 105 is arranged on the chilled water side of the water chilling unit, and a chilled water type machine room air conditioner 107 in the data center machine room and the water chilling unit 101 form a chilled water side circulation through a chilled water pipeline 106. The data center is built in a high-latitude or high-altitude area, the water chilling unit can be partially opened or completely closed in a mode of adding the plate heat exchanger 108 between the cooling water side and the chilled water side when the outdoor environment temperature is low, the chilled water in the chilled water side circulation is cooled through the plate heat exchanger 108 by directly utilizing the low-temperature cooling water in the cooling tower 104, the data center air conditioning system is operated in a natural cooling mode, and the energy consumption of the data center air conditioning system is reduced.
In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art:
1) the occupied space is much: in the existing large-scale water-cooling chilled water system of the data center, a freezing station is required to be arranged in an independent area planned in/out of a data center building, and a water chilling unit, a water pump, a plate heat exchanger and other large-scale equipment are installed;
2) the installation process is complicated, the working procedures are various, and the engineering quantity is large: the system cooling and chilled water pipeline is connected with an outdoor cooling tower and a chilled water machine room air conditioner in a data machine room; the data center machine room is internally provided with chilled water type machine room air conditioners, an air flow organization mainly adopts an under-floor air supply mode, an elevated static floor needs to be fully paved in the machine room, an air conditioning equipment room is designed to be safely isolated from a machine room area, and chilled water main pipes are paved in the air conditioning equipment room and connected with each chilled water type machine room air conditioner;
3) independent delivery cannot be achieved, the construction delivery period is long: a large amount of large equipment needs to be installed in a large water-cooling chilled water system of a data center, and various connection relations exist among the equipment, so that the air conditioning system of a data machine room cannot be independently delivered, and a long period is also needed for construction and delivery;
4) in low-latitude and low-altitude areas, the duration of the outdoor low-temperature environment available all the year round is very short, and the effects of energy conservation and consumption reduction are limited.
Disclosure of Invention
In view of this, embodiments of the present invention provide an air conditioning system and a data center using the same, so as to solve the problems in the prior art that an air conditioning system in a data center room cannot be independently delivered quickly, a construction delivery cycle is long, and a natural cooling application area is limited, effectively simplify the complexity of the air conditioning system, greatly reduce the construction workload, and achieve independent and quick deployment of the air conditioning system and the room; greatly reduces the energy consumption of the air conditioning system and realizes energy conservation and consumption reduction.
To achieve the above object, according to an aspect of an embodiment of the present invention, there is provided an air conditioning system including:
the indirect evaporative cooling equipment is arranged on the roof of the machine room;
the air return opening of the indirect evaporative cooling equipment is communicated with a first machine room space in the machine room and is used for sucking hot air in the machine room into the indirect evaporative cooling equipment;
the indirect evaporative cooling apparatus cools the hot air to cool air;
and the air supply outlet of the indirect evaporative cooling equipment is communicated with a second machine room space in the machine room and is used for sending the cold air into the machine room.
Optionally, the air conditioning system of the embodiment of the present invention further includes: the isolation part is arranged between the top of the machine room and the ground of the machine room or the machine cabinet in the machine room;
the space formed by the enclosing of the isolation parts from the machine room ground to the top of the machine room is a first machine room space.
Optionally, at least one set of cabinets is arranged in the machine room, each set of cabinets includes two rows of cabinets arranged back to back, and a hot channel is formed between the two rows of cabinets arranged back to back; the isolation portion includes:
the closed doors are arranged at two ends of the hot channel;
the closing plate is arranged between the tops of two rows of cabinets arranged back to back and the top of the machine room, and between the top of the closing door and the top of the machine room.
Optionally, the air conditioning system of the embodiment of the present invention further includes:
the return air static pressure box is arranged between the top of the machine room and the first machine room space; and/or the presence of a gas in the gas,
and the air supply static pressure box is arranged between the air supply outlet and the second machine room space.
Optionally, a ceiling is arranged in the machine room; spaces at two ends of the at least one group of cabinets form a side channel respectively, and a space between the side channel and the corresponding ceiling is a second space;
the return air static pressure box comprises: the space between the suspended ceiling corresponding to the first machine room space and the top of the machine room;
the air supply static pressure box comprises: and the space between the suspended ceiling corresponding to the side channel and the top of the machine room.
Optionally, an air supply louver is arranged on the suspended ceiling corresponding to the side channel.
Optionally, a return air hole is formed in the top of the machine room, and a return air inlet of the indirect evaporative cooling equipment is connected with the return air hole in a side return air mode; and/or the presence of a gas in the gas,
and the top of the machine room is provided with an air supply hole, and an air supply outlet of the indirect evaporative cooling equipment is connected with the air supply hole in a mode of supplying air downwards.
Optionally, a filter is disposed in the indoor air section and/or the outdoor air section of the indirect evaporative cooling apparatus.
Optionally, a water spraying device is arranged on the air inlet side of the outdoor air section of the indirect evaporative cooling equipment.
Optionally, the air conditioning system of the embodiment of the present invention further includes: the air-cooled direct-expansion supplementary cooling equipment comprises an evaporator, an air-cooled condenser and a compressor; wherein,
the evaporator is arranged on the air supply side of the indoor air section of the indirect evaporative cooling equipment, the compressor is arranged in the indirect evaporative cooling equipment, and the air-cooled condenser is arranged on the air exhaust side of the outdoor air section of the indirect evaporative cooling equipment.
According to another aspect of the embodiment of the present invention, a data center is provided, which includes a machine room, a cabinet disposed in the machine room, and an air conditioning system provided in the first aspect of the embodiment of the present invention.
One embodiment of the above invention has the following advantages or benefits:
(1) the indirect evaporative cooling equipment is adopted, so that natural cooling working condition operation in most of the whole year can be realized in high-latitude and high-altitude areas, and natural cooling working condition operation for a longer time can be realized in low-latitude and low-altitude areas, so that the energy consumption of an air conditioning system is greatly reduced, and the energy conservation and consumption reduction are realized;
(2) the invention does not need to build a freezing station and a water system pipeline, does not need to lay an electrostatic floor and set an air conditioning equipment room in the machine room, greatly simplifies the structure of the air conditioning system, occupies less space, has small construction engineering quantity, and can realize independent and rapid deployment;
(3) through setting up the isolation part, can effectively inhale indirect evaporative cooling equipment with the hot-air in the computer lab, improve the cooling effect.
(4) By arranging the return air static pressure box, hot air in each hot channel can be fully mixed, the temperature of the hot air in the static pressure box is uniform as much as possible, the return air working conditions of the roof indirect evaporative cooling equipment are basically consistent, and the load is equally divided;
(5) by arranging the air supply static pressure box, the dynamic pressure of an air supply outlet of the indirect evaporative cooling equipment can be converted into static pressure, the air supply quantity is ensured to be uniform, and the air supply noise is reduced;
(6) the air supply shutter is arranged, so that the uniformity of air supply quantity can be further ensured;
(7) the filter is arranged in the indoor air section, so that impurities in hot air can be prevented from being sent into the machine room again, and the cleanliness of circulating air is guaranteed; the filter is arranged in the outdoor air section, so that the damage of impurities to the air conditioning system can be reduced, and the service life of the air conditioning system is prolonged.
(8) The spraying device is arranged on the air inlet side of the outdoor air section to carry out evaporative cooling on outdoor air, so that the cooling effect is improved;
(9) the air-cooled direct-expansion supplementary cooling equipment comprises an evaporator, an air-cooled condenser and a compressor, wherein the evaporator is arranged on the air supply side of the indoor air section of the indirect evaporative cooling equipment, the compressor is arranged in the indirect evaporative cooling equipment, and the air-cooled condenser is arranged on the air exhaust side of the outdoor air section of the indirect evaporative cooling equipment. Through setting up supplementary cooling apparatus, can supply indirect evaporative cooling equipment's refrigerating output, improve refrigeration effect.
Further effects of the above-mentioned non-conventional alternatives will be described below in connection with the embodiments.
Drawings
The drawings are included to provide a better understanding of the invention and are not to be construed as unduly limiting the invention. Wherein:
FIG. 1 is a schematic diagram of the main components of a large prior art water-cooled chilled water system;
FIG. 2 is a schematic diagram of the main components of an air conditioning system according to an embodiment of the present invention;
fig. 3 is a schematic layout diagram of cabinets in a machine room according to an embodiment of the present invention;
FIG. 4 is a schematic view of a return air/supply plenum box arrangement according to an embodiment of the invention;
FIG. 5 is a schematic view of a return air mode of an air conditioning system according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of an air supply mode of an air conditioning system according to an embodiment of the present invention;
fig. 7 is a principal component schematic diagram of an indirect evaporative cooling apparatus according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention are described below with reference to the accompanying drawings, in which various details of embodiments of the invention are included to assist understanding, and which are to be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
The embodiment of the invention adopts indirect evaporative cooling equipment, hot air in the machine room is sucked to the indirect evaporative cooling equipment arranged on the roof, and is cooled by fully exchanging heat with outdoor air or the outdoor air after being cooled by evaporative cooling, and then the cooled air is sent to the internal environment of the machine room for refrigerating equipment in the cabinet.
An air conditioning system according to an embodiment of the present invention will be described in detail with reference to fig. 2 to 7. It should be noted that various technical features mentioned in the embodiments of the present invention can be arbitrarily combined without departing from the spirit of the present invention.
Fig. 2 is a schematic diagram of main components of an air conditioning system according to an embodiment of the present invention, and as shown in fig. 2, the air conditioning system 1000 includes:
the indirect evaporative cooling equipment 10 is arranged on the roof of the machine room 40;
the air return opening of the indirect evaporative cooling equipment 10 is communicated with the first machine room space 80 in the machine room 40 and is used for sucking hot air in the machine room 40 into the indirect evaporative cooling equipment 10;
the indirect evaporative cooling apparatus 10 cools the hot air into cold air;
the air supply outlet of the indirect evaporative cooling apparatus 10 is communicated with the second machine room space 90 in the machine room 40, and is used for supplying the cold air into the machine room 40.
The first room space 80 refers to a space in the room where the hot air content is high, and the second room space 90 refers to a space in the room where the hot air content is low or no hot air is contained. It should be noted that, higher or lower is relative, and the first machine room space 80 and the second machine room space 90 may be divided according to practical application scenarios, which is not specifically limited in the embodiment of the present invention. A partition may be provided between the first machine room space 80 and the second machine room space 90.
On the one hand, the embodiment of the invention does not need to build a refrigeration station, a water system pipeline and the like, can solve the problems that the data center machine room air conditioning system in the prior art cannot be independently delivered quickly, the construction delivery period is longer, and the natural cooling application area is limited, greatly simplifies the structure of the air conditioning system, occupies less space, has small construction engineering quantity, and can realize independent and quick deployment of the air conditioning system and the machine room. On the other hand, the embodiment of the invention adopts indirect evaporative cooling equipment, can realize natural cooling working condition operation for most of the whole year in high-latitude and high-altitude areas, and can also realize long-time natural cooling working condition operation in low-latitude and low-altitude areas, thereby greatly reducing the energy consumption of an air conditioning system and realizing the energy conservation and consumption reduction of a data center.
The air return/supply mode of the indirect evaporative cooling device is related to the position of an air return/supply outlet of the indirect evaporative cooling device. Optionally, the top of the machine room 40 is provided with a return air hole 41, and the return air inlet of the indirect evaporative cooling device 10 is connected to the return air hole 41 in a side return air manner. For example, the air return opening of the indirect evaporative cooling device 10 is arranged on the side plate of the indirect evaporative cooling device 10, and the hot air in the machine room 40 enters the indirect evaporative cooling device 10 from the side. Optionally, the top of the machine room 40 is provided with an air supply hole 42, and an air supply outlet of the indirect evaporative cooling device 10 is connected with the air supply hole 42 in a downward air supply manner. For example, the air supply outlet of the indirect evaporative cooling device 10 is arranged at the bottom of the indirect evaporative cooling device 10, and the hot air in the machine room is cooled to be cold air by the indirect evaporative cooling device 10 and then is sent into the machine room 40 from the air supply outlet at the bottom of the indirect evaporative cooling device 10.
The air conditioning system of the embodiment of the present invention may further include: a partition 60 disposed between the top of the machine room 40 and the ground of the machine room 40 or the cabinet 50 in the machine room 40; the space enclosed by the partition 60 from the floor of the machine room 40 to the top of the machine room 40 is a first machine room space 80. Through setting up the isolation part, can prevent the hot-air in the computer lab and send into the cold air mixture of computer lab, effectively inhale indirect evaporative cooling equipment with the hot-air in the computer lab, improve the cooling effect.
Because cabinet 50 is mostly from the heat dissipation of cabinet rear side, consequently, for the convenience of effectively retrieving hot-air, can set up a plurality of cabinets back to back. As shown in fig. 3, at least one set of cabinets is disposed in the machine room 40, and each set of cabinets includes two rows of cabinets arranged back to back, and a hot channel 51 is formed between the two rows of cabinets arranged back to back.
The separator 60 may include: closing doors 61 provided at both ends of the hot aisle 51; and the sealing plates (not shown in the figure) are arranged between the tops of the two rows of cabinets arranged back to back and the top of the machine room, and between the top of the sealing door and the top of the machine room. Since most of the cabinets 50 radiate heat from the rear sides of the cabinets, the partition part 60 is provided in this way, so that heat loss of hot air on the rear sides of the cabinets can be further prevented, and thus, hot air in the machine room can be effectively sucked into the indirect evaporative cooling equipment, and the amount of hot air to be cooled can be reduced. In addition, by arranging the isolation parts in this way, the area surrounded by the isolation parts 60 can be reduced, the material consumption of the isolation parts 60 can be reduced, and the cost can be reduced.
The air conditioning system of the embodiment of the present invention may further include: and a return air plenum 25 disposed between the top of the machine room 40 and the first machine room space 80. Because the computer lab actual operation, every rack heating operating mode all has the difference, and the hot-air temperature of each hot passageway can have the difference in temperature, sets up return air static pressure case and can carry out the homogeneous mixing to the hot-air of each hot passageway, makes the hot-air temperature of static pressure incasement even, ensures that the return air operating mode of each indirect evaporative cooling equipment in roof is unanimous basically, is favorable to each indirect evaporative cooling equipment balanced sharing load.
The air conditioning system of the embodiment of the present invention may further include: and the air supply static pressure box 20 is arranged between the air supply outlet and the second machine room space 90. Through setting up air supply static pressure case, can change indirect evaporative cooling equipment supply-air outlet dynamic pressure into static pressure, ensure that the amount of wind is even to reduce the air supply noise.
Optionally, a ceiling 70 is arranged in the machine room 40; spaces at two ends of the at least one group of cabinets form a side channel respectively, and a space between the side channel and the corresponding ceiling is a second space; the return air static pressure box 25 is as follows: the suspended ceiling 70 corresponding to the first machine room space 80 is hollow, the hot channel 51 is communicated with the upper space of the suspended ceiling 70, and the space between the suspended ceiling 70 corresponding to the first machine room space 80 and the top of the machine room 40 is provided; the air supply static pressure box 20 is as follows: the side access corresponds to the space between the ceiling 70 and the top of the machine room 40.
It should be noted that the size of the return air plenum 25 and the supply plenum 20 can be set as desired. For example, the return air plenum 25 is the space between the ceiling 70 directly above the first machine room space 80 and the top of the machine room 40, or the return air plenum 25 is the space between the ceiling 70 and the top of the machine room 40 directly above and within some range of the perimeter of the first machine room space 80. For another example, the air supply static pressure box 20 is a space between the ceiling 70 directly above the side passage and the top of the machine room 40, or the air supply static pressure box 20 is a space between the ceiling 70 directly above the side passage and a certain range of the periphery thereof and the top of the machine room 40.
Fig. 4 is a schematic view of a return air/supply plenum box arrangement according to an embodiment of the invention. As shown in fig. 4, five sets of cabinets are respectively disposed on the left side and the right side in the machine room 40, and each set of cabinets corresponds to one hot aisle 51. One side channel is formed between the left side of the left cabinet and the machine room 40, and the other side channel is formed between the right side of the right cabinet and the machine room 40. The space between the suspended ceiling 70 and the top of the machine room 40 directly above and within a certain range around the side passage is the air supply static pressure box 20, and the space between the suspended ceiling 70 and the top of the machine room 40 directly above and within a certain range around the first machine room space 80 is the return air static pressure box 25.
As shown in fig. 2 or 4, the side channels may be provided with air supply louvers 30 on the corresponding ceiling 70. After being cooled by the indirect evaporative cooling equipment 10, the cold air is sent to the air supply static pressure box 20 and is diffused to the machine room space through the air supply louver 30. The air supply shutter is arranged, so that the uniformity of air supply quantity can be further guaranteed.
Fig. 5 is a schematic view of a return air mode of the air conditioning system according to the embodiment of the present invention, and fig. 6 is a schematic view of a supply air mode of the air conditioning system according to the embodiment of the present invention. As shown in fig. 5 and 6, hot air exhausted from two rows of cabinets arranged back to back is enclosed by the hot channel and flows into the return air plenum 25, passes through the return air hole at the top of the machine room 40, is sucked into the indirect evaporative cooling device 10, and is cooled by heat exchange with outdoor air through the air-air heat exchanger to obtain cold air. The cold air is sent to the air supply static pressure box 20 from the air supply hole on the roof of the machine room 40 and is sent to the inner space of the machine room 40 through the air supply opening, so that the inner space of the machine room 40 forms a cold pool environment for cooling the cabinet.
The indoor air section 11 of the indirect evaporative cooling apparatus 10 may be provided with a filter 113 and/or the outdoor air section 12 may be provided with a filter therein. The filter is arranged in the indoor air section, so that impurities in hot air can be prevented from being sent into the machine room again, and the cleanliness of circulating air is guaranteed; the filter is arranged in the outdoor air section, so that the damage of impurities to the air conditioning system can be reduced, and the service life of the air conditioning system is prolonged.
The outdoor air section 12 of the indirect evaporative cooling apparatus 10 may be provided with spray devices, for example at locations corresponding to evaporative condensers, to provide evaporative cooling to the outdoor air.
The air conditioning system of the embodiment of the present invention may further include: the air-cooled direct-expansion supplementary cooling equipment comprises an evaporator, an air-cooled condenser and a compressor. In the air-cooled condenser, heat given off by the refrigerant is taken away by air. The structure form of the heat-dissipating device mainly comprises a plurality of groups of copper pipes, fins are usually added outside the copper pipes due to poor air heat transfer performance so as to increase the heat transfer area of the air side, and a ventilator is adopted to accelerate the air flow so as to lead the air to be forced to flow in order to increase the heat-dissipating effect. It should be noted that, a person skilled in the art may add other components, such as a throttle valve, to the air-cooled direct-expansion supplementary cooling device according to actual requirements of an application scenario, and details of the embodiment of the present invention are not described again. The air-cooled direct-expansion supplementary cooling equipment is provided with a compressor, and a liquid refrigerant in a refrigerating system of the air-cooled direct-expansion supplementary cooling equipment is directly evaporated (expanded) in an evaporator coil to absorb heat to air outside the coil so as to refrigerate. In some embodiments, the evaporator is disposed on the indoor air section supply side of the indirect evaporative cooling apparatus, the compressor is disposed inside the indirect evaporative cooling apparatus, and the air-cooled condenser is disposed on the outdoor air section discharge side of the indirect evaporative cooling apparatus. Through setting up supplementary cooling apparatus, can supply indirect evaporative cooling equipment's refrigerating output, improve refrigeration effect.
Fig. 7 is a principal component schematic diagram of an indirect evaporative cooling apparatus according to an embodiment of the present invention. As shown in fig. 7, the indirect evaporative cooling device 10 is divided into an indoor air section 11 and an outdoor air section 12 according to airflow organization, hot air sucked from a machine room is cooled after exchanging heat with outdoor air through an air-to-air heat exchanger (i.e., a heat exchanger for exchanging heat between air and gas) 13, the air supply of the indoor air section 11 adopts a downward air supply mode, an air supply opening is connected with a reserved air supply hole 42 on a roof through an air pipe, and the air supply air pipe is provided with a fire damper 112 (e.g., a 70 ℃ fire damper); the air return of the indoor air section 11 adopts a side air return mode, and an air return inlet is connected with a reserved air return hole 41 of the roof through an air pipe; an electric air valve 112 is arranged in the air return side of the indoor air section 11, and the opening and closing of the electric air valve are linked with the unit; a filter 113 is arranged at the air return side of the indoor air section 11 to ensure the cleanliness of the circulating air; the air supply side of the indoor air section 11 is provided with an air supply fan 114; the air supply side of the indoor air section 11 is provided with a direct evaporative cooling coil 115 for supplementing the refrigerating capacity of the air-air heat exchanger, the compressor is arranged in the unit, and the air exhaust side of the outdoor air section 12 is provided with an air-cooled condenser 125 for cooling the refrigerant. The air inlet side of the outdoor air section 12 is provided with a filter 122; a spraying device 123 can be arranged at the position of the air inlet side of the outdoor air section 12 corresponding to the evaporative condenser 115 so as to evaporate and cool the outdoor air; the discharge side of the outdoor air section 12 is provided with a blower fan 124.
In some embodiments, the indirect evaporative cooling apparatus operates as follows:
in winter: and a dry working condition high-efficiency heat exchange natural cooling mode is adopted for the condition of low outdoor temperature. When the mode is adopted, a spraying device is not needed to be started for spraying water, and indoor and outdoor air directly exchanges heat through the air-air heat exchanger;
spring and autumn: the evaporative cooling natural cooling mode under the wet working condition is adopted, when the outdoor temperature is warmer, the spraying device 123 needs to be started for spraying water, and the outdoor air is subjected to evaporative cooling and temperature reduction and then exchanges heat with the indoor air through the air-air heat exchanger;
summer: the combined mode of evaporative cooling and mechanical refrigeration of the compressor is adopted, when the outdoor temperature is high and the humidity is high, the spraying device or the atomizing device is started firstly, the outdoor air is cooled through evaporative cooling, then the outdoor air exchanges heat with the indoor air through the air-air heat exchanger, and the compressor needs to be started for supplementary refrigeration to reach the designed air supply temperature.
In the above embodiment, the lower temperature, the warmer temperature and the higher temperature are only used to indicate different temperature ranges, and the specific value of each temperature range may be set according to the actual situation, and similarly, the higher humidity may also be set according to the actual situation, which is not specifically limited in the embodiment of the present invention.
According to another aspect of the embodiment of the present invention, a data center is provided, which includes a machine room, a cabinet disposed in the machine room, and an air conditioning system provided in the first aspect of the embodiment of the present invention.
According to the technical solution of the embodiment of the present invention,
(1) the indirect evaporative cooling equipment is adopted, so that natural cooling working condition operation in most of the whole year can be realized in high-latitude and high-altitude areas, and natural cooling working condition operation for a longer time can be realized in low-latitude and low-altitude areas, so that the energy consumption of an air conditioning system is greatly reduced, and the energy conservation and consumption reduction are realized;
(2) the invention does not need to build a freezing station and a water system pipeline, does not need to lay an electrostatic floor and set an air conditioning equipment room in the machine room, greatly simplifies the structure of the air conditioning system, occupies less space, has small construction engineering quantity, and can realize independent and rapid deployment;
(3) through setting up the isolation part, can effectively inhale indirect evaporative cooling equipment with the hot-air in the computer lab, improve the cooling effect.
(4) By arranging the return air static pressure box, hot air in each hot channel can be fully mixed, the temperature of the hot air in the static pressure box is uniform as much as possible, the return air working conditions of the roof indirect evaporative cooling equipment are basically consistent, and the load is equally divided;
(5) by arranging the air supply static pressure box, the dynamic pressure of an air supply outlet of the indirect evaporative cooling equipment can be converted into static pressure, the air supply quantity is ensured to be uniform, and the air supply noise is reduced;
(6) the air supply shutter is arranged, so that the uniformity of air supply quantity can be further ensured;
(7) the filter is arranged in the indoor air section, so that impurities in hot air can be prevented from being sent into the machine room again, and the cleanliness of circulating air is guaranteed; the filter is arranged in the outdoor air section, so that the damage of impurities to the air conditioning system can be reduced, and the service life of the air conditioning system is prolonged.
(8) The spraying device is arranged on the air inlet side of the outdoor air section to carry out evaporative cooling on outdoor air, so that the cooling effect is improved;
(9) the air-cooled type indirect evaporative cooling equipment is provided with an evaporator, an air-cooled condenser and supplementary cooling equipment of a compressor, wherein the evaporator is arranged on the air supply side of the indoor air section of the indirect evaporative cooling equipment, the compressor is arranged in the indirect evaporative cooling equipment, and the air-cooled condenser is arranged on the air exhaust side of the outdoor air section of the indirect evaporative cooling equipment. Through setting up supplementary cooling apparatus, can supply indirect evaporative cooling equipment's refrigerating output, improve refrigeration effect.
The above-described embodiments should not be construed as limiting the scope of the invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. An air conditioning system, comprising:
the indirect evaporative cooling equipment is arranged on the roof of the machine room;
the air return opening of the indirect evaporative cooling equipment is communicated with a first machine room space in the machine room and is used for sucking hot air in the machine room into the indirect evaporative cooling equipment;
the indirect evaporative cooling apparatus cools the hot air to cool air;
and the air supply outlet of the indirect evaporative cooling equipment is communicated with a second machine room space in the machine room and is used for sending the cold air into the machine room.
2. The air conditioning system of claim 1, further comprising: the isolation part is arranged between the top of the machine room and the ground of the machine room or the machine cabinet in the machine room;
the space formed by the enclosing of the isolation parts from the machine room ground to the top of the machine room is a first machine room space.
3. The air conditioning system of claim 2, wherein at least one set of cabinets is arranged in the machine room, each set of cabinets comprises two rows of cabinets arranged back to back, and a heat channel is formed between the two rows of cabinets arranged back to back; the isolation portion includes:
the closed doors are arranged at two ends of the hot channel;
the closing plate is arranged between the tops of two rows of cabinets arranged back to back and the top of the machine room, and between the top of the closing door and the top of the machine room.
4. The air conditioning system as claimed in claim 2 or 3, further comprising:
the return air static pressure box is arranged between the top of the machine room and the first machine room space; and/or the air supply static pressure box is arranged between the air supply outlet and the second machine room space.
5. The air conditioning system of claim 4, wherein a ceiling is disposed within the machine room; spaces at two ends of the at least one group of cabinets form a side channel respectively, and a space between the side channel and the corresponding ceiling is a second space;
the return air static pressure box comprises: the space between the suspended ceiling corresponding to the first machine room space and the top of the machine room;
the air supply static pressure box comprises: and the space between the suspended ceiling corresponding to the side channel and the top of the machine room.
6. The air conditioning system of claim 4, wherein air supply louvers are provided on the suspended ceiling corresponding to the side channels.
7. The air conditioning system as claimed in claim 1, wherein the top of the machine room is provided with a return air hole, and the return air inlet of the indirect evaporative cooling equipment is connected with the return air hole in a side return air mode; and/or the presence of a gas in the gas,
and the top of the machine room is provided with an air supply hole, and an air supply outlet of the indirect evaporative cooling equipment is connected with the air supply hole in a mode of supplying air downwards.
8. The air conditioning system of claim 1, wherein a filter is disposed within the indoor air section and/or the outdoor air section of the indirect evaporative cooling apparatus.
9. The air conditioning system of claim 1, wherein a water spray device is provided at an air inlet side of the outdoor air section of the indirect evaporative cooling apparatus.
10. The air conditioning system of claim 1, further comprising: the air-cooled direct-expansion supplementary cooling equipment comprises an evaporator, an air-cooled condenser and a compressor; wherein,
the evaporator is arranged on the air supply side of the indoor air section of the indirect evaporative cooling equipment, the compressor is arranged in the indirect evaporative cooling equipment, and the air-cooled condenser is arranged on the air exhaust side of the outdoor air section of the indirect evaporative cooling equipment.
11. A data center comprising a room, and cabinets disposed in the room, further comprising an air conditioning system as claimed in any one of claims 1 to 10.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810034607.XA CN110043986A (en) | 2018-01-15 | 2018-01-15 | A kind of air-conditioning system and the data center using it |
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| CN201810034607.XA CN110043986A (en) | 2018-01-15 | 2018-01-15 | A kind of air-conditioning system and the data center using it |
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| CN110043986A true CN110043986A (en) | 2019-07-23 |
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| CN201810034607.XA Pending CN110043986A (en) | 2018-01-15 | 2018-01-15 | A kind of air-conditioning system and the data center using it |
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Application publication date: 20190723 |