CN101975494B - Air-cooled energy-saving type motor room air conditioning system - Google Patents
Air-cooled energy-saving type motor room air conditioning system Download PDFInfo
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- CN101975494B CN101975494B CN2010105280195A CN201010528019A CN101975494B CN 101975494 B CN101975494 B CN 101975494B CN 2010105280195 A CN2010105280195 A CN 2010105280195A CN 201010528019 A CN201010528019 A CN 201010528019A CN 101975494 B CN101975494 B CN 101975494B
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 30
- 239000003507 refrigerant Substances 0.000 claims abstract description 43
- 238000005057 refrigeration Methods 0.000 claims abstract description 31
- 238000001704 evaporation Methods 0.000 claims abstract description 29
- 230000008020 evaporation Effects 0.000 claims abstract description 29
- 238000009833 condensation Methods 0.000 claims abstract description 27
- 230000005494 condensation Effects 0.000 claims abstract description 27
- 239000012530 fluid Substances 0.000 claims abstract description 20
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims description 19
- 230000007613 environmental effect Effects 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 6
- 230000004087 circulation Effects 0.000 abstract description 7
- 239000002826 coolant Substances 0.000 abstract 2
- 239000007788 liquid Substances 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 8
- 239000007921 spray Substances 0.000 description 8
- 238000005265 energy consumption Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- -1 R410A Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Other Air-Conditioning Systems (AREA)
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Abstract
The invention discloses an air-cooled energy-saving type motor room air conditioning system, comprising a compressor, a first air-cooled condenser, a throttling device, an evaporation condenser, a fluid reservoir, a coolant pump, a flow balanced valve, a tail-end heat exchanger, a first refrigerant switch valve, a second refrigerant switch valve and a second air-cooled condenser. A high-pressure exhaust port of the compressor is sequentially connected with the first air-cooled condenser, the throttling device, the evaporation side of the evaporation condenser and a low-pressure suction port of the compressor to form a compression refrigeration circulation loop; the condensation-side outlet of the evaporation condenser is sequentially connected with the fluid reservoir, the coolant pump, the flow balanced valve, the tail-end heat exchanger, the first refrigerant switch valve and the condensation-side inlet of the evaporation condenser; and the outlet of the tail-end heat exchanger is sequentially connected with the second refrigerant switch valve, the second air-cooled condenser and the inlet of the fluid reservoir to form nearly equipressure evaporation and condensation refrigeration circulation loop. The system has little temperature difference and high energy efficiency ratio during heat exchange.
Description
Technical field
The present invention relates to the air-conditioning system technical field, be specifically related to a kind of air cooling and power saving type computer-room air conditioning system.
Background technology
Along with the fast development of China recent years information industry and network application, machine room and base station construction speed are accelerated greatly, and its quantity increases sharply, and more and more becomes the energy consumption rich and influential family.According to statistics, the energy consumption of machine room and base station accounts for 90% of whole network energy consumption, and the air conditioner refrigerating energy consumption accounts for 40%～50% of machine room and base station energy consumption.Particularly many base stations still need utilize air conditioner refrigerating in spring and autumn and winter season, and this moment, outdoor air temperature was often lower, will reduce the energy consumption of base station air conditioner greatly if can utilize outdoor low temperature to freeze.
The discharging that utilizes outdoor lower temperature to carry out indoor heat is not a completely new concept, has promptly been adopted this theory by the VMC of a large amount of employings at present, also has the refrigeration system that directly adopts heat exchange method in addition.
A kind of computer-room air conditioning system is disclosed among the Chinese patent ZL200920037779.9; Comprise and need the heat radiation unit; The heating face or the non-heating face of two adjacent units in this unit that need dispel the heat are settled relatively; The bottom of each unit is provided with the gas channel that is led to heating face by non-heating face, and blower fan is housed in the gas channel, and the division board that extends to the roof is installed in the top of each unit.Between two adjacent unit heating faces and the roof between the non-heating face suction opeing and the air outlet that connects air conditioner is set respectively; Can form air conditioner and under last, see cold wind off by air outlet; Ventilation round via bottom and each layer is delivered to heating face by non-heating face, and the suction opeing bottom-up extraction of face hot gas of will generating heat forms rational air-conditioning wind field circulation; Obtain desirable air-conditioning effect, and cost economy.
A kind of air conditioner in machine room servicing unit is disclosed among the Chinese invention patent application CN200910035398.1; Below the outer machine of air-conditioning, be provided with spray equipment, this spray equipment comprises the spray person in charge, and spray is responsible for and is provided with at least one spray arm; The spray arm is arranged at the below of outer machine; Be provided with atomizer at a spray tube end, spray is responsible for and is provided with solenoid electric valve, and temperature control circuit is set on the solenoid electric valve.Through outdoor machine of air-conditioner is sprayed water-cooled, improve the refrigeration of air-conditioning.
But the refrigeration modes of existing VMC can exist complicated air quality to handle problems, and can there be the problem that the operation temperature difference is big, Energy Efficiency Ratio is not high in the refrigeration system of heat exchange method.Therefore, be necessary to develop a kind of novel computer-room air conditioning system.
Summary of the invention
The invention provides a kind of air cooling and power saving type computer-room air conditioning system.
A kind of air cooling and power saving type computer-room air conditioning system comprises compressor, first air-cooled condenser, throttling arrangement, evaporative condenser, fluid reservoir, refrigerant pump, flow balance valve, end heat exchanger, the first cold-producing medium transfer valve, the second cold-producing medium transfer valve and second air-cooled condenser;
The high-pressure exhaust of described compressor is connected with the evaporation side of first air-cooled condenser, throttling arrangement, evaporative condenser, the low pressure air suction mouth of compressor successively, forms the compression refrigeration closed circuit;
The condensation side outlet of described evaporative condenser is connected with the condensation side import of fluid reservoir, refrigerant pump, flow balance valve, end heat exchanger, the first cold-producing medium transfer valve, evaporative condenser successively; The outlet of described end heat exchanger is connected with the import of the second cold-producing medium transfer valve, second air-cooled condenser, fluid reservoir successively, forms nearly isobaric evaporation, condensation refrigeration cycle.
Described fluid reservoir is positioned at evaporative condenser and second air-cooled condenser below, is beneficial to cold-producing medium and utilizes the gravity effect to circulate.
Described refrigerant pump is selected canned motor pump or magnetic drive pump for use, can prevent the axle of cold-producing medium in course of conveying to reveal better.
Described refrigerant pump lift can be too high, considers that from energy-conservation equal angles lift can be lower than 6m.
Can be set up in parallel 2-20 platform end heat exchanger in described nearly isobaric evaporation, the condensation refrigeration cycle, to satisfy different space requirements, general space can suitably increase the quantity of end heat exchanger more greatly.
The described end heat exchanger flow balanced valve of all connecting, convenient thermic load of regulating each end heat exchanger.
The preferred environmental protection working medium cold-producing medium that adopts in the described compression refrigeration closed circuit, the cold-producing medium in this loop can be provided by air cooling and power saving type computer-room air conditioning system of the present invention, also can be provided by other air-conditioning systems, to economize on resources.Described environmental protection working medium cold-producing medium refers to that mainly ozone layer consumption potential (ODP) value is 0 cold-producing medium, like R410 or R134A etc.
The preferred non-azeotropic refrigerant that adopts in described nearly isobaric evaporation, the condensation refrigeration cycle.
Compared with prior art; Air cooling and power saving type computer-room air conditioning system of the present invention has not only solved the air quality of complicacy handling problem in the VMC; Also solved the problem that the operation temperature difference is big in the hot swapping, Energy Efficiency Ratio is not high; Still be aspects such as national energy strategy no matter, all have meaning, mainly have following beneficial effect from economic benefit, social benefit:
(1) reduces heat transfer temperature difference during more than or equal to 20 ℃ in outdoor temperature, improves refrigerating efficiency.
(2) when outdoor temperature is lower than 20 ℃, directly adopt the refrigerant pump circulating refrigerant, refrigerating efficiency increases substantially, and coefficient of performance of refrigerating (COP) can reach more than 10.
(3) overcome in the conventional computer-room air conditioning system defective that water easily advances machine room, guarantee the computer room safety operation.
Description of drawings
Fig. 1 is the structural representation of air cooling and power saving type computer-room air conditioning system of the present invention;
Among Fig. 1,1 is that compressor, 2 is that first air-cooled condenser, 3 is that throttling arrangement, 4 is that evaporative condenser, 5 is that fluid reservoir, 6 is that refrigerant pump, 7 is that flow balance valve, 8 is that end heat exchanger, 9 is that the first cold-producing medium transfer valve, 10 is that the second cold-producing medium transfer valve, 11 is second air-cooled condenser.
The specific embodiment
As shown in Figure 1; Air cooling and power saving type computer-room air conditioning system of the present invention comprises compressor 1, first air-cooled condenser 2, throttling arrangement 3, evaporative condenser 4, fluid reservoir 5, refrigerant pump 6, flow balance valve 7, end heat exchanger 8, the first cold-producing medium transfer valve 9, the second cold-producing medium transfer valve 10 and second air-cooled condenser 11; The high-pressure exhaust of compressor 1 is connected with first air-cooled condenser 2, throttling arrangement 3, the evaporation side of evaporative condenser 4, the low pressure air suction mouth of compressor 1 successively, forms the compression refrigeration closed circuit; The outlet of the condensation side of evaporative condenser 4 is connected with the condensation side import of fluid reservoir 5, refrigerant pump 6, flow balance valve 7, end heat exchanger 8, the first cold-producing medium transfer valve 9, evaporative condenser 4 successively; The outlet of end heat exchanger 8 is connected with the import of the second cold-producing medium transfer valve 10, second air-cooled condenser 11, fluid reservoir 5 successively, forms nearly isobaric evaporation, condensation refrigeration cycle.
Fluid reservoir 5 is positioned at evaporative condenser 4 and second air-cooled condenser, 11 belows.
Refrigerant pump 6 is canned motor pump or magnetic drive pump, and lift is lower than 6m.
Be set up in parallel 2-20 platform end heat exchanger 8 in nearly isobaric evaporation, the condensation refrigeration cycle, every end heat exchanger 8 series connection one flow balanced valve 7.Also can increase the platform number of the end heat exchanger 8 of parallel connection, the lift of refrigerant pump 6 is suitably heightened under this situation.
Air cooling and power saving type computer-room air conditioning system of the present invention is made up of compression refrigeration closed circuit and nearly isobaric evaporation, condensation refrigeration cycle; The compression refrigeration closed circuit can adopt environmental protection working medium cold-producing medium as first cold-producing medium; Like environmental protection working medium cold-producing mediums such as R410 or R134A; First cold-producing medium in this loop can be provided by air cooling and power saving type computer-room air conditioning system of the present invention, also can be provided by other air-conditioning systems, to economize on resources; Nearly isobaric evaporation, condensation refrigeration cycle can adopt non-azeotropic refrigerant as second cold-producing medium, like non-azeotropic refrigerants such as R410A.
The course of work of air cooling and power saving type computer-room air conditioning system of the present invention is following:
When outdoor temperature during more than or equal to 20 ℃; The first cold-producing medium transfer valve 9 is opened; The second cold-producing medium transfer valve 10 cuts out, the first cold-producing medium transfer valve 9 open or close and the second cold-producing medium transfer valve 10 open or close all that can control through existing responsive to temperature control system also can be through manually control.In the compression refrigeration closed circuit; First refrigerant gas gets into first air-cooled condenser 2 and is become first refrigerant liquid by the outdoor air cooling condensation after compressor 1 compression; First refrigerant liquid gets into the evaporation side of evaporative condenser 4 after throttling arrangement 3 throttling step-downs; With the condensation side generation Hot swapping of evaporative condenser 4, be i.e. become first refrigerant gas after the condensation heat evaporation in the closely isobaric evaporation of absorption, the condensation refrigeration cycle and be compressed the next circulation of machine 1 suction entering.In nearly isobaric evaporation, condensation refrigeration cycle; Second refrigerant liquid in the fluid reservoir 5 is transported to flow balance valve 7 through refrigerant pump 6; Through second refrigerant liquid of flow balance valve 7 endways in the heat exchanger 8 in the absorption chamber behind the heat evaporation become second refrigerant gas; The condensation side that second refrigerant gas gets into evaporative condenser 4 through the first cold-producing medium transfer valve 9; Carry out Hot swapping with first refrigerant liquid in the evaporation side of evaporative condenser 4, become second refrigerant liquid after the release heat and get into fluid reservoir 5, get into next circulation.
When outdoor temperature was lower than 20 ℃, the first cold-producing medium transfer valve 9 cut out, and the second cold-producing medium transfer valve 10 is opened.The compression refrigeration closed circuit quits work.In nearly isobaric evaporation, condensation refrigeration cycle; Second refrigerant liquid in the fluid reservoir 5 is transported to flow balance valve 7 by refrigerant pump 6; Through second refrigerant liquid of flow balance valve 7 endways in the heat exchanger 8 in the absorption chamber behind the heat evaporation become second refrigerant gas; Second refrigerant gas gets into 11 condensations of second air-cooled condenser through the second cold-producing medium transfer valve 10 and becomes second refrigerant liquid, and second refrigerant liquid gets into fluid reservoir 5, gets into next circulation.
Air cooling and power saving type computer-room air conditioning system of the present invention system can directly adopt nearly isobaric evaporation, condensation refrigeration cycle when outdoor temperature is low, do not use the compression refrigeration closed circuit, and system COP increases substantially, and can reach more than 10.Second cold-producing medium of the indoor nearly isobaric evaporation of machine room, condensation refrigeration cycle uses non-azeotropic refrigerants such as R410A, and refrigerant pump 6 circulations by low lift guarantee computer room safety.
Claims (6)
1. air cooling and power saving type computer-room air conditioning system; It is characterized in that, comprise compressor (1), first air-cooled condenser (2), throttling arrangement (3), evaporative condenser (4), fluid reservoir (5), refrigerant pump (6), flow balance valve (7), end heat exchanger (8), the first cold-producing medium transfer valve (9), the second cold-producing medium transfer valve (10) and second air-cooled condenser (11);
The high-pressure exhaust of described compressor (1) is connected with the evaporation side of first air-cooled condenser (2), throttling arrangement (3), evaporative condenser (4), the low pressure air suction mouth of compressor (1) successively, forms the compression refrigeration closed circuit;
The condensation side outlet of described evaporative condenser (4) is connected with the condensation side import of fluid reservoir (5), refrigerant pump (6), flow balance valve (7), end heat exchanger (8), the first cold-producing medium transfer valve (9), evaporative condenser (4) successively; The outlet of described end heat exchanger (8) is connected with the import of the second cold-producing medium transfer valve (10), second air-cooled condenser (11), fluid reservoir (5) successively, forms nearly isobaric evaporation, condensation refrigeration cycle;
Adopt environmental protection working medium cold-producing medium in the described compression refrigeration closed circuit; Described environmental protection working medium cold-producing medium is R410 or R134A;
Adopt non-azeotropic refrigerant in described nearly isobaric evaporation, the condensation refrigeration cycle.
2. air cooling and power saving type computer-room air conditioning system according to claim 1 is characterized in that, described fluid reservoir (5) is positioned at evaporative condenser (4) and second air-cooled condenser (11) below.
3. air cooling and power saving type computer-room air conditioning system according to claim 1 is characterized in that described refrigerant pump (6) is canned motor pump or magnetic drive pump.
4. according to claim 1 or 3 described air cooling and power saving type computer-room air conditioning systems, it is characterized in that the lift of described refrigerant pump (6) is lower than 6m.
5. air cooling and power saving type computer-room air conditioning system according to claim 1 is characterized in that, is set up in parallel 2-20 platform end heat exchanger (8) in described nearly isobaric evaporation, the condensation refrigeration cycle.
6. air cooling and power saving type computer-room air conditioning system according to claim 5 is characterized in that, described end heat exchanger (8) the flow balanced valve (7) of all connecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105280195A CN101975494B (en) | 2010-11-02 | 2010-11-02 | Air-cooled energy-saving type motor room air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105280195A CN101975494B (en) | 2010-11-02 | 2010-11-02 | Air-cooled energy-saving type motor room air conditioning system |
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| Publication Number | Publication Date |
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| CN101975494A CN101975494A (en) | 2011-02-16 |
| CN101975494B true CN101975494B (en) | 2012-11-07 |
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| CN2010105280195A Active CN101975494B (en) | 2010-11-02 | 2010-11-02 | Air-cooled energy-saving type motor room air conditioning system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705930B (en) * | 2012-01-19 | 2015-11-25 | 李彬 | Base station is with accurately sending cold energy-saving air conditioning system |
| CN104697221A (en) * | 2013-12-04 | 2015-06-10 | 林耀章 | Low-pressure condensation type energy-saving refrigerator |
| CN105423654A (en) * | 2014-09-04 | 2016-03-23 | 林耀章 | Energy-saving refrigerating machine capable of injecting liquid refrigerant on gas-state high-pressure section |
| CN109028411A (en) * | 2018-08-17 | 2018-12-18 | 北京中热信息科技有限公司 | A kind of heat pipe backboard air conditioning multi-couple unit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1338593A (en) * | 2000-08-11 | 2002-03-06 | 诠旭电机股份有限公司 | Air conditioner with evaporation-type condenser |
| CN201311124Y (en) * | 2008-12-12 | 2009-09-16 | 宾肯科技(北京)有限公司 | Air conditioner specially used for naturally cooling double cold source machine room |
| CN101608817A (en) * | 2009-07-20 | 2009-12-23 | 南京佳力图空调机电有限公司 | A kind of energy-saving air conditioner of indirect utilization outdoor cold source |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008164261A (en) * | 2006-12-28 | 2008-07-17 | Chisato Iida | Air-conditioning method for improving indoor environment |
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- 2010-11-02 CN CN2010105280195A patent/CN101975494B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1338593A (en) * | 2000-08-11 | 2002-03-06 | 诠旭电机股份有限公司 | Air conditioner with evaporation-type condenser |
| CN201311124Y (en) * | 2008-12-12 | 2009-09-16 | 宾肯科技(北京)有限公司 | Air conditioner specially used for naturally cooling double cold source machine room |
| CN101608817A (en) * | 2009-07-20 | 2009-12-23 | 南京佳力图空调机电有限公司 | A kind of energy-saving air conditioner of indirect utilization outdoor cold source |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2008-164261A 2008.07.17 |
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