CN102878616B - High-heat-density inter-column cooling air-conditioning unit and applying method thereof - Google Patents
High-heat-density inter-column cooling air-conditioning unit and applying method thereof Download PDFInfo
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- CN102878616B CN102878616B CN201210391956.XA CN201210391956A CN102878616B CN 102878616 B CN102878616 B CN 102878616B CN 201210391956 A CN201210391956 A CN 201210391956A CN 102878616 B CN102878616 B CN 102878616B
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 25
- 238000001816 cooling Methods 0.000 title claims abstract description 23
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- 238000001035 drying Methods 0.000 claims abstract description 17
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Abstract
The invention discloses a high-heat-density inter-column cooling air-conditioning unit, belongs to air-conditioning refrigerating units, and aims to solve the problems that a central air-conditioning system in the prior art has over-high input initially, and the energy-saving effect is not obvious, and the restriction to a machine room with dense equipment by a fresh air system is over high. The high-heat-density inter-column cooling air-conditioning unit comprises a control system, an outdoor machine as well as an indoor machine, wherein the control system controls an air-conditioning machine set to run; the outdoor machine is composed of a condenser and an axial flow fan for radiating heat for the condenser; the indoor machine is mainly composed of a compressor, a liquid storage device, a drying filter, an expansion valve, an evaporator and a centrifugal fan for exchanging heat with the evaporator; and the compressor, the condenser, the liquid storage device, the drying filter, the expansion valve and the evaporator are sequentially connected through a transmission pipeline and form a loop. The invention also discloses an applying method of the air-conditioning unit. Through the conversion of cooling modes, energy is saved greatly, energy conservation and emission reduction are realized, the machine room is not required to be modified in a large scale, and thus the cost is saved.
Description
Technical field
The present invention relates to a kind of energy-saving air conditioning system, specifically, relate to cooling air conditioning group and application process thereof between a kind of high heat density row.
Background technology
Along with the development of society; the quickening of process of industrialization; the shortage of resource, the deterioration of environment become mankind institute urgent problem; countries in the world all propose the slogan of " protection of the environment, economize energy " in recent years; China also advocates energy-saving and emission-reduction energetically; air-conditioning, as energy consumption rich and influential family, becomes the focus of all industries naturally, and exploitation environment-friendly and high-energy effect air-conditioner set becomes diligent the pursued target of each Air-conditioning Enterprise.
For telecom operators, machine room is power consumption emphasis link, accounts for more than 50% of total power consumption.Along with developing rapidly of Communications Market, large-scale communications equipment room is newly-built, user increases, and causes power consumption constantly to rise.Current electric power energy shortage phenomenon becomes increasingly conspicuous, the energy-saving and cost-reducing focus having become the whole society and paid close attention to, therefore, the energy consumption reducing communications equipment room has become the focus of telecom operators' energy-saving and emission-reduction, and using electricity wisely cost is also the important step that joint props up on the other hand.
Along with country is to the pay attention to day by day of energy-saving and emission-reduction work, some units of recent year expand research for the power-saving technology of telecommunications room, and develop relevant equipment, more typically have: a class, for adopting energy-saving and frequency-variable technology to carry out electric power system transformation to central air conditioner system, adopts digital frequency conversion technology to realize the energy-conservation of air-conditioner host; Another kind of solution adopts Xingfeng capsule system to carry out reducing energy consumption to building environment control system, implementation is in machine room, increase a set of independently VMC, coordinated signals is carried out with original air-conditioning system, utilize the altitude temperature difference effect of machine room indoor and outdoor to reduce the working time of central air-conditioning, and then reach energy-conservation object.But the energy-saving and frequency-variable technology initial stage input cost of central air conditioner system is excessive, and energy-saving effect is not obvious; And Leads to new breeze scheme must carry out larger transformation to machine room, especially the machine room that equipment is intensive is carried out transforming and be often subject to larger restriction.
And existing computer-room air conditioning system adopts the overall cooling-down type of machine room, namely air-conditioning reduces machine room, rack integrated environment temperature, and the thermal source such as computer, server is lowered the temperature by self fan and surrounding air convection current.So very most of energy consumption is for reducing the temperature of machine room, rack, environment etc., and the energy consumption acting on the cooling such as computer, server is relatively less.
And along with the high speed development of data center, the demand of more and more higher process data capability, treating capacity produces larger heat density, the demand of high heat density cooling is more and more stronger, and the existing air conditioner in machine room scheme by cooler environment temperature has been difficult to meet present machine room high heat, high requirement of concentrating.
Summary of the invention
The object of the present invention is to provide cooling air conditioning group between a kind of high heat density row, the central air conditioner system initial stage in prior art that solves drops into excessive and energy-saving effect is not obvious and VMC is difficult to satisfied present machine room high heat to the limited cooling capacity of air conditioner in machine room that causes very greatly of the equipment room renovation that equipment is intensive, highly concentrates the problem required.
In order to solve the problem, the technical solution used in the present invention is as follows:
Cooling air conditioning group between high heat density row, comprise the control system controlling this air-conditioner set and run, also comprise the off-premises station be made up of condenser and the axial flow blower for dispelling the heat for condenser, and primarily of compressor, reservoir, device for drying and filtering, expansion valve, evaporimeter and the indoor set for forming with the centrifugal blower of evaporator heat exchange, wherein, compressor, condenser, reservoir, device for drying and filtering, expansion valve and evaporimeter connect and compose loop successively by transmission pipeline.
In the said equipment, condenser and axial flow blower are installed in off-premises station, wherein, the refrigerant vapour that condenser transports for being cooled through transmission pipeline, it is made to be cooled to liquid, axial flow blower is used for, to condenser heat radiation, taking away cold-producing medium liberated heat, its temperature is reached and is applicable to carrying out the degree of heat exchange with room air; And compressor, evaporimeter, reservoir, device for drying and filtering, expansion valve and centrifugal blower are all installed in indoor set, wherein, compressor is the power resources of refrigeration unit, reservoir is used for cold-producing medium unnecessary in storage system, have enough cold-producing mediums when ensureing system works to use, device for drying and filtering is used for carrying out drying and filtration to the cold-producing medium passed through, expansion valve is for reducing refrigerant pressure, evaporimeter has been the capital equipment that cold-producing medium and room air carry out heat exchange, and centrifugal blower is high temperature air being sent by cooled air in suction chamber then.
In order to prevent refrigeration unit work schedule cryogen from refluxing, the transmission pipeline between described reservoir and condenser is provided with check valve.
Further, the transmission pipeline between described device for drying and filtering and expansion valve is disposed with magnetic valve and liquid-sighting glass.
Again further, the transmission pipeline of described compressor output end is provided with high voltage protective switch, and the transmission pipeline of its input is provided with low-voltage protective switch.
Further, described compressor is frequency-changeable compressor, and condenser is condenser coil, and expansion valve is heating power expansion valve.
Control in real time to realize temperature, the present invention also comprises for monitoring objective temperature and the temperature sensor be connected with control system.
In order to regulate indoor air humidity, between described evaporimeter and centrifugal blower, be provided with humidifier.
On the basis of above-mentioned hardware system, present invention also offers the application process of cooling air conditioning group between these high heat density row, comprise the following steps:
(1) off-premises station comprising axial flow blower is installed on machine room outside, the indoor set that will comprise centrifugal blower is installed and near the server cabinet of machine room, makes the air outlet of air inlet with server cabinet of centrifugal blower, the air outlet of centrifugal blower distinguish corresponding with the air inlet of server cabinet;
(2) temperature signal detected is passed to control system by temperature sensor, and control system regulates the operate power of compressor, centrifugal blower, axial flow blower to match with it by budget parameters;
(3) low-pressure steam that cold-producing medium is formed by compressor sucks and boil down to high steam is delivered to condenser, and outside air is sucked by axial flow blower and carries out heat exchange with condenser, takes away cold-producing medium liberated heat, makes high steam be condensed into highly pressurised liquid;
(4) highly pressurised liquid flows through check valve and enters reservoir buffering, flows through magnetic valve and liquid-sighting glass successively, then enters expansion valve throttling, be converted into Low temperature low pressure liquid, and get back to evaporimeter after drying filter dry filter;
(5) air inlet of the hot-air produced in server cabinet by centrifugal blower sucks by centrifugal blower, through evaporator, heat exchange is carried out with the low-temp low-pressure liquid refrigerant in it, cold air after heat release enters in server cabinet through the air outlet of centrifugal blower lowers the temperature to server cabinet, and become low-pressure steam after cold-producing medium heat absorption, complete a circulation;
(6) repeated execution of steps (3) ~ (5), form air circulation canal between centrifugal blower and server cabinet.
Specifically, in running, described temperature sensor detects the temperature in server cabinet in real time, and the temperature signal detected is transferred to control system, temperature signal in control system statistics preset time period also calculates mean temperature, by the power adjusting of compressor, centrifugal blower, axial flow blower to the power corresponding with mean temperature.
In order to improve refrigeration, in described step (1), if the quantity of server cabinet is more than one, then between every two-server rack, an indoor set is installed, and makes indoor set and server cabinet all near arrangement.
Compared with prior art, beneficial effect of the present invention is as follows:
(1) principle of the invention is simple, designs ingenious, and it is convenient to realize, and is applicable to applying.
(2) volume of the present invention is moderate, moves and places all very convenient, need not carry out excessive transformation, install at any time, use at any time, thus saved early investment when being installed in telecommunications room to machine room.
(3) indoor set of the present invention is near server cabinet installation, directly lowers the temperature to server cabinet itself, has jumped out the entirety cooling thinking of traditional air conditioner in machine room, achieve point-to-point refrigerating mode, by the transformation of cooling mode, greatly save energy, reduce operating cost.
(4) the present invention is installed between server cabinet, the air inlet of centrifugal blower and air outlet are respectively just to air outlet and the air inlet of server cabinet, cold passage is formed in the air-supply orientation of centrifugal blower, the passage of heat is formed in the air draught orientation of centrifugal blower, the separation achieving cold and hot passage is separated by air inlet and air outlet, avoid the waste of cold, thus save energy.
(5) because cold air is directly sent into server cabinet by centrifugal blower of the present invention, highly shortened the length in air channel, fed back rapidly by the febrile state in server cabinet, air-supply size of the present invention and wind pushing temperature were shortened greatly for the response time of server cabinet, thus drastically increases the present invention to thermoregulator control accuracy.
(6) the present invention is provided with humidifier and is detected by indoor humidity, achieves effective control of indoor humidity.
(7) the present invention is by rack Hot spots detection, detects the internal temperature of server cabinet, controls refrigeration unit of the present invention and fan operation, make the present invention reach best ventilation state.
Accompanying drawing explanation
Fig. 1 is system principle diagram of the present invention.
Fig. 2 is scheme of installation of the present invention.
In above-mentioned accompanying drawing, the corresponding name of Reference numeral is called: 1-compressor, 2-high voltage protective switch; 3-condenser, 4-check valve, 5-reservoir; 6-device for drying and filtering, 7-magnetic valve, 8-liquid-sighting glass; 9-expansion valve, 10-evaporimeter, 11-low-voltage protective switch; 12-centrifugal blower, 13-axial flow blower, 14-humidifier; 15-indoor set, 16-server cabinet.
Detailed description of the invention
Elaborate to the present invention below in conjunction with drawings and Examples, embodiments of the present invention include but not limited to the following example.
Embodiment
As shown in Figure 1, cooling air conditioning group between these high heat density row, comprising by being connected successively by transmission pipeline is the compressor 1 in loop, high voltage protective switch 2, condenser 3, check valve 4, reservoir 5, device for drying and filtering 6, magnetic valve 7, liquid-sighting glass 8, expansion valve 9, the refrigeration unit that evaporimeter 10 and low-voltage protective switch 11 form, the axial flow blower 13 in off-premises station is together installed on condenser, the centrifugal blower 12 in indoor set is together installed on evaporimeter, control the control system that this air-conditioner set runs, the temperature sensor be connected for monitoring objective temperature and with control system, and the humidifier 14 be installed between evaporimeter and centrifugal blower.Below the annexation of whole system and the course of work are described in detail.
In the said equipment, condenser 3 and axial flow blower 13 are installed in off-premises station, and wherein, the refrigerant vapour that condenser 3 transports for being cooled through transmission pipeline, making it be cooled to liquid, in order to improve condensation effect, usually selecting condenser coil; Axial flow blower 13, for condenser heat radiation, takes away cold-producing medium liberated heat, its temperature is reached and is applicable to carrying out the degree of heat exchange with room air.And miscellaneous part is all installed in indoor set, wherein, compressor 1 is the power resources of refrigeration unit, in order to realize energy adjustment, compressor specifically selects frequency-changeable compressor, makes the present invention be adapted to broader cold control range, and reduces energy consumption when low refrigeration requirement; High voltage protective switch 2 and low-voltage protective switch 11 are for the input and output of constant compression machine; Check valve 4 refluxes for preventing work schedule cryogen; Reservoir 5, for cold-producing medium unnecessary in storage system, has enough cold-producing mediums and uses when ensureing system works; Device for drying and filtering 6 is for carrying out drying and filtration to the cold-producing medium passed through; Magnetic valve 7 and liquid-sighting glass 8 are respectively used to control and observe fluid path situation, ensure system run all right; Expansion valve 9, for reducing the temperature and pressure of cold-producing medium, selects heating power expansion valve usually; Evaporimeter 10 has been capital equipments that cold-producing medium and room air carry out heat exchange; Centrifugal blower then sucks external high temperature air and is sent by cooled air; Control system then adopts now air-conditioned control system, repeats no more in the present embodiment; Temperature sensor is installed in server cabinet 16 and detects the temperature in rack in real time and temperature signal is transferred to control system; Humidifier 14 is for the air humidity of regulable control indoor.
On the basis of above-mentioned hardware system, application process of the present invention, comprises the following steps:
(1) as shown in Figure 2, off-premises station of the present invention is then installed on machine room outside, indoor set 15 is installed and is close proximity between the server cabinet 16 of machine room, the air inlet of centrifugal blower 12 and air outlet are distinguished just to air outlet and the air inlet of server cabinet, if there is multiple server cabinet, then between every two server cabinets, an indoor set of the present invention is installed, and makes indoor set and server cabinet all near arrangement;
(2) in running, temperature sensor detects the temperature in server cabinet in real time, and the temperature signal detected is transferred to control system, control system is added up the temperature signal in two minutes and is calculated mean temperature, by the power adjusting of compressor, centrifugal blower, axial flow blower to the power corresponding with mean temperature;
(3) compressor provide power to be formed by cold-producing medium low-pressure steam suck and boil down to high steam by Cemented filling to the condenser being positioned at off-premises station, axial flow blower sucks outside air and flows through condenser, take away cold-producing medium liberated heat, make high steam be condensed into highly pressurised liquid;
(4) highly pressurised liquid flows through check valve and enters in reservoir and store, because reservoir inner space is larger, cushioning effect can also be played to the cold-producing medium of high-pressure liquid, protection miscellaneous part normally works, and according to pressure principle, liquid state refrigerant transfer is carried out dry filter to device for drying and filtering, then magnetic valve and liquid-sighting glass is flow through successively, enter expansion valve throttling decrease temperature and pressure, be converted into Low temperature low pressure liquid, and get back in evaporimeter, the hot-air continued centrifugal blower 12 sucks carries out cooling processing;
(5) hot-air produced in server cabinet is sucked by air inlet by centrifugal blower, through evaporator, heat exchange is carried out with the low-temp low-pressure liquid refrigerant in it, cold air blowout after heat release enters in server cabinet by air outlet, and become low-pressure steam after cold-producing medium heat absorption, complete a circulation;
(6) repeated execution of steps (3) ~ (5), constantly send the hot-air sucking-off in server cabinet into cold air, between these high heat density row, form air circulation canal between cooling air conditioning group and server cabinet.
Point-to-point refrigerating mode like this has jumped out the cooling mode of traditional air conditioner in machine room to whole machine room, achieve and server cabinet itself is lowered the temperature, the change of cooling mode can be a large amount of energy of server operator saving, thus reach the requirement of the energy-saving and emission-reduction that country advocates, also save investment operation cost.
In order to realize integrating cabinet hot spot monitoring, the present invention can also arrange at server machine diverse location cashier's office in a shop the temperature sensor be connected with control system when mounted respectively, the each point temperature of server cabinet is detected by temperature sensor, according to the height of detected temperatures, control system regulates the operate power of compressor in the present invention, centrifugal blower, axial flow blower, thus control air-supply size, make the ventilation state that the present invention reaches best.
According to above-described embodiment, just the present invention can be realized well.
Claims (3)
1. the application process of cooling air conditioning group between high heat density row, wherein, cooling air conditioning group between high heat density row, comprise the control system controlling this air-conditioner set and run, the off-premises station be made up of condenser (3) and the axial flow blower (13) for dispelling the heat for condenser (3), and primarily of compressor (1), reservoir (5), device for drying and filtering (6), expansion valve (9), evaporimeter (10) and the indoor set for forming with the centrifugal blower (12) of evaporimeter (10) heat exchange, wherein, compressor (1), condenser (3), reservoir (5), device for drying and filtering (6), expansion valve (9) and evaporimeter (10) connect and compose loop successively by transmission pipeline, it is characterized in that, comprise the following steps:
(1) off-premises station comprising axial flow blower is installed on machine room outside, the indoor set that will comprise centrifugal blower is installed and near the server cabinet of machine room, makes the air outlet of air inlet with server cabinet of centrifugal blower, the air outlet of centrifugal blower distinguish corresponding with the air inlet of server cabinet;
(2) temperature signal detected is passed to control system by temperature sensor, and control system regulates the operate power of compressor, centrifugal blower, axial flow blower to match with it by parameter preset;
(3) low-pressure steam that cold-producing medium is formed by compressor sucks and boil down to high steam is delivered to condenser, and outside air is sucked by axial flow blower and carries out heat exchange with condenser, takes away cold-producing medium liberated heat, makes high steam be condensed into highly pressurised liquid;
(4) highly pressurised liquid flows through check valve and enters reservoir buffering, flows through magnetic valve and liquid-sighting glass successively, then enters expansion valve throttling, be converted into Low temperature low pressure liquid, and get back to evaporimeter after drying filter dry filter;
(5) air inlet of the hot-air produced in server cabinet by centrifugal blower sucks by centrifugal blower, through evaporator, heat exchange is carried out with the low-temp low-pressure liquid refrigerant in it, cold air after heat release enters in server cabinet through the air outlet of centrifugal blower lowers the temperature to server cabinet, and become low-pressure steam after cold-producing medium heat absorption, complete a circulation;
(6) repeated execution of steps (3) ~ (5), form air circulation canal between centrifugal blower and server cabinet.
2. the application process of cooling air conditioning group between high heat density row according to claim 1, it is characterized in that, in described step (2), described temperature sensor detects the temperature in server cabinet in real time, and the temperature signal detected is transferred to control system, temperature signal in control system statistics preset time period also calculates mean temperature, by the power adjusting of compressor, centrifugal blower, axial flow blower to the power corresponding with mean temperature.
3. the application process of cooling air conditioning group between high heat density row according to claim 1 and 2, it is characterized in that, in described step (1), if the quantity of server cabinet is more than one, then between every two-server rack, an indoor set is installed, and makes indoor set and server cabinet all near arrangement.
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| CN201210391956.XA CN102878616B (en) | 2012-10-16 | 2012-10-16 | High-heat-density inter-column cooling air-conditioning unit and applying method thereof |
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| CN201210391956.XA CN102878616B (en) | 2012-10-16 | 2012-10-16 | High-heat-density inter-column cooling air-conditioning unit and applying method thereof |
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| CN104896638B (en) * | 2015-06-09 | 2017-11-21 | 长沙麦融高科股份有限公司 | It is a kind of from heat extraction air-conditioning and its control method |
| CN107166665A (en) * | 2015-06-29 | 2017-09-15 | 张琴 | A kind of method of work of high-tension distribution chamber of converting |
| CN107750117B (en) * | 2017-11-29 | 2023-09-15 | 郑州云海信息技术有限公司 | Container data center |
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| CN109373622A (en) * | 2018-10-12 | 2019-02-22 | 广州市华德工业有限公司 | A kind of air-conditioning system and data center computer room air-conditioning |
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| CN109963446A (en) * | 2019-04-22 | 2019-07-02 | 南京工业大学 | A kind of server installs data center's cabinet compound thermal management system of loop circuit heat pipe heat exchanger and cross flow fan additional |
| CN112616291A (en) * | 2020-11-26 | 2021-04-06 | 华为技术有限公司 | Data center device |
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| CN2746289Y (en) * | 2004-11-02 | 2005-12-14 | 吴勇 | Indoor unit of air conditioner for unattented machine room |
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Denomination of invention: High-heat-density inter-column cooling air-conditioning unit and applying method thereof Effective date of registration: 20170508 Granted publication date: 20141224 Pledgee: China Minsheng Banking Corp Chengdu branch Pledgor: Sichuan Yimikang Environment Technology Co., Ltd. Registration number: 2017510000024 |
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Denomination of invention: High-heat-density inter-column cooling air-conditioning unit and applying method thereof Effective date of registration: 20180903 Granted publication date: 20141224 Pledgee: China Minsheng Banking Corp Chengdu branch Pledgor: ISCO Technology Group Limited by Share Ltd Registration number: 2018510000089 |
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