CN2909073Y - Air-conditioning system of raising refrigeration efficiency - Google Patents

Air-conditioning system of raising refrigeration efficiency Download PDF

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Publication number
CN2909073Y
CN2909073Y CNU2006200602505U CN200620060250U CN2909073Y CN 2909073 Y CN2909073 Y CN 2909073Y CN U2006200602505 U CNU2006200602505 U CN U2006200602505U CN 200620060250 U CN200620060250 U CN 200620060250U CN 2909073 Y CN2909073 Y CN 2909073Y
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CN
China
Prior art keywords
air
water
cooling
heat
conditioning system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNU2006200602505U
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Chinese (zh)
Inventor
陈斌
叶立英
黄晓峰
李明孝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Ai Shuo Technology Development Co Ltd
Guangdong Kelong Electrical Appliances Co Ltd
Original Assignee
Hangzhou Ai Shuo Technology Development Co Ltd
Guangdong Kelong Electrical Appliances Co Ltd
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Application filed by Hangzhou Ai Shuo Technology Development Co Ltd, Guangdong Kelong Electrical Appliances Co Ltd filed Critical Hangzhou Ai Shuo Technology Development Co Ltd
Priority to CNU2006200602505U priority Critical patent/CN2909073Y/en
Application granted granted Critical
Publication of CN2909073Y publication Critical patent/CN2909073Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an air conditioning system which fully utilizes the unsaturated feature of the air to improve the cooling efficiency. Besides a compressor, a throttle device, a blower, an air-cooling and heat-exchanging device, the invention also includes a water-cooling circulation sub-system which consists of a temperature-reducing device of the cooling water, a water-cooling and heat-exchanging device, a water pump and a water pipeline; the water and the refrigerant perform the heat exchange inside a water-cooling heat exchanger; after the water temperature rises and via the spray of the temperature-reducing device of the cooling water, the water and the refrigerant perform the heat exchange with the air; when the water temperature drops, the water and the refrigerant once again flow back to the water-cooling heat exchanger to absorb the heat. At the same time, the environmental air is sucked into the temperature-reducing device of the cooling water via the blower and performs the heat and humidity exchange with the water inside the temperature-reducing device of the cooling water, and then the absolute humidity is increased, but the dry bulb temperature is usually reduced; the outlet air is not directly exhausted into the air, but absorbs the high temperature condensate heat of the refrigerant exhausted by the compressor via the air-cooling heat exchanger to continuously increase the temperature, and after being the relatively high temperature and high humidity status, the outlet air is finally exhausted. As a result, the pressure at the condensation side of the air conditioning system is reduced, and the cooling efficiency is improved.

Description

A kind of air-conditioning system that improves refrigerating efficiency
Technical field
The utility model relates to a kind of novel air conditioning system, particularly the improvement of air-conditioning system Refrigeration Technique.
Background field
When present conventional air-conditioning system finished kind of refrigeration cycle, outdoor condenser used air or water as low-temperature receiver usually.When using air to come the cooling refrigeration agent, because the air side coefficient of heat transfer is little, specific heat is little, causes heat transfer temperature difference very big, condensation temperature is very high, a large amount of consumption that bring usually therefore that system's wasted work is big, efficient is low or bring heat exchange material (copper, aluminium foil, etc.); When using water cooling, the caused temperature rise of water absorption condensation heat is cooled off by air by means of cooling tower usually, water and air are simple counter current contacting in the cooling tower, the desirable final temperature point that water is lowered the temperature is the wet-bulb temperature of air intake state correspondence, cooling-down effect is limited, though and a large amount of air draft actual temperatures is not high, and be underutilized.
Summary of the invention
The technical problems to be solved in the utility model provides the novel air conditioning system that a kind of unsaturation that makes full use of air improves refrigerating efficiency, make water for cooling respectively by air, and directly make the cold-producing medium cooling, thereby reduce condensation temperature, improve refrigerating capacity and refrigerating efficiency.
The realization the technical solution of the utility model is: a kind of air-conditioning system, comprise the cooling cycle system that is provided with compressor, air cooling heat-exchanger rig, throttling arrangement and evaporimeter, it is characterized in that: described air-conditioning system also comprises by water-cooled heat-exchanger rig, cooling water temperature device and water pipeline forms cooling water circulation subsystem, the refrigerant inlet of water-cooled heat-exchanger rig is connected with air cooling heat-exchanger rig refrigerant outlet, and the refrigerant outlet of water-cooled heat-exchanger rig is connected with the refrigerant inlet of throttling arrangement.In cooling water circulation subsystem the water pump that cooling water is sprayed in from the water cooling heat exchanger forced flow to the cooling water temperature device can be set also, to obtain better heat exchange effect.
Described air-conditioning system also comprise make external environment air and cooling water circulation subsystem carry out after the wet exchange of heat again with the air cooling heat-exchanger rig in the cold-producing medium air cooling circulation subsystem of carrying out heat exchange.Described air cooling circulation subsystem comprises air channel and the air cooling heat-exchanger rig that is arranged in the cooling water temperature device.Also be provided with in the described air cooling circulation subsystem outside air is sucked blower fan in the air channel.
Specifically, the indoor set of native system device (evaporimeter) can use all kinds indoor set (evaporimeter), off-premises station also comprises the cooling water circulation subsystem of being made up of cooling water temperature device, water-cooled heat-exchanger rig, water pump and water lines except that comprising conventional compressor, throttling arrangement, blower fan, air setting heat-exchanger rig.Water and cold-producing medium carry out heat exchange in water cooling heat exchanger, after water temperature raises, be sent to cooling water temperature device spray, carry out the wet exchange of heat with air, and water temperature descends, and flows back into water cooling heat exchanger again and circulates.Surrounding air by blower fan be evacuated in the cooling water temperature device carry out the wet exchange of heat with shower water after; absolute humidity increases; but dry-bulb temperature can reduce usually; this air-out does not directly enter atmosphere; but continue to heat up by air-cooled heat exchanger absorption refrigeration agent condensation heat again, finally become behind the high wet condition of relatively-high temperature and discharge.Therefore in fact air makes full use of its unsaturation and has born the condensation of refrigerant total load.Air-conditioning system condensation side pressure decline thus, refrigerating efficiency obtain to improve.
The installation site of system's indoor set (evaporimeter) both can partly be combined with system host, provided the mode of cold (heat) water or wind to move by pipe (wind) road, can also on-line equipment in the indoor of user's reality.
The beneficial effects of the utility model are: when cold-producing medium is carried out common air cooling and water-cooled, increase the repeatedly heat exchange between outside air and water and the air-cooled heat exchanger, make that air-conditioning system condensation side pressure descends, refrigeration obtains to improve.Simultaneously, since outside air and water carry out heat wet exchange after, absolute humidity increases, like this, this air-conditioning system is combined in the off-premises station of conventional small-sized split air conditioner or commercial central air-conditioning, can obviously improve operational efficiency, be suitable for various areas, especially be very suitable for being applied in the not too high climatological region of surrounding air relative humidity.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model air-conditioning system is further described.
Accompanying drawing 1 is the utility model air-conditioning system structural representation.
The specific embodiment
As shown in Figure 1, the utility model air-conditioning system comprises by the cooling cycle system of compressor 1, air cooling heat-exchanger rig 2, water-cooled heat-exchanger rig 4, throttling arrangement 5 with evaporimeter 6, and the cooling water circulation subsystem of being made up of water-cooled heat-exchanger rig 4, water pipeline, water pump 8 and cooling water temperature device 3.Air cooling heat-exchanger rig 2 is realized air-condensation of refrigerant heat exchange, and water-cooled heat-exchanger rig 4 is realized water-condensation of refrigerant heat exchange.
The cold-producing medium circulation basic procedure of the utility model air-conditioning system is: after cold-producing medium was compressed by compressor 1, compressed machine 1 exhaust outlet flow to air-cooled heat exchanger 2 (to heat pump air conditioner, also being connected in series cross valve high-pressure sides in the middle of both) by pipeline; High temperature refrigerant flow to water-cooled heat-exchanger rig 4 more by the road earlier through the air cooling heat exchange, and cold-producing medium continues through the water-cooled condensation; Abundant condensed cold-producing medium flow to evaporimeter 6 through throttling arrangement 5 again, realizes being sucked into compressor 1 (to heat pump air conditioner, refrigerant line also is connected in series the cross valve low-pressure side) behind the absorption refrigeration in evaporimeter 6, circulates with this.In the pipeline multiple accessories such as liquid reservoir, filter can be set.
Water cooling circulation basic procedure is: water and cold-producing medium carry out heat exchange in water-cooled heat-exchanger rig 4, after water temperature raises, are delivered to cooling water temperature device 3 sprays by water pump 8, carry out the wet exchange of heat with air, and water temperature descends, and flows back into water-cooled heat-exchanger rig 4 again and circulates.And have water pipe in the water circulation process and control moisturizing, to replenish the water yield that reduces because of the evaporation gasification by ball-cock assembly.
The mobile basic procedure of air is: air and water carry out the wet exchange of heat in cooling water temperature device 3 after; humidity increases; but temperature can reduce usually; this air-out does not directly enter atmosphere; but utilize connecting pipe or the air outlet of cooling water temperature device is directly aimed at air-cooled heat exchanger; continue to heat up by air-cooled heat exchanger 2 absorption refrigeration agent condensation heat, finally discharged after becoming the high wet condition of relatively-high temperature by blower fan 7.
Cooling tower on operation principle with direct evaporation-cooled device, only the former to move purpose be to obtain by desuperheated water, and the operation latter mainly is the wind in order to have obtained (humidification) by lowering the temperature.About the notion of directly evaporative cooling and indirect evaporation cooling has introduction more in air-conditioning class books, do not do too much explanation here.
Need to prove that the multichannel evaporation-cooled device promptly is the heat exchanger that China Patent No. CN200310122817.8 " multistage regenerative multichannel evaporating and cooling method and heat exchanger thereof " is invented, claim " wet energy core " herein.On the potentiality that water, wind are lowered the temperature, be somebody's turn to do " wet energy core " because ingenious dry passage, the wet channel of being provided with, and fully realized the countercurrent flow obversion by the caloic transmission of forming dried wet channel material, make final air, coolant-temperature gage state can reach the pairing dew-point temperature of initial air state in theory, be optimal comprehensive utilization directly and the indirect evaporation cooling principle heat that the obtains abundant cooling-down effect switch that wets.
Because this patent is a purpose to improve refrigerating efficiency, though therefore above several cooling devices all can utilize, disclosed multichannel evaporation-cooled device is as the cooling water temperature device among the recommendation employing CN200310122817.8.Because this device good cooling effect can make full use of the cooling source thermograde that forms with this, obtains lower air-conditioning system condensation temperature.Condensation temperature can be reduced to below 30 ℃.Even and use conventional cooling tower, though the ability of its precipitation temperature is relatively limited, but because this patent can continue to be used to the low enthalpy that is used for water-cooled a large amount of air drafts, therefore systematic energy efficiency ratio is preferably still arranged, only the condensation temperature of this refrigeration system is limited by the higher coolant water temperature (thermograde of cooling source is less relatively, and minimum temperature is higher relatively) of wet relatively energy core system.
In the actual arrangement of various cooling water temperature devices 3, require the spray of water even, make water body fully to launch, could realize and the wet exchange of the abundant heat of air, obtain preferable cooling-down effect, be beneficial to the power consumption that reduces blower fan 7 simultaneously again.Leave the air channel of carrying out the wet exchange of heat at air after, enter atmosphere before again by air-cooled heat exchanger, also help reducing the entraining water problem in the air draft, the water that is consumed has really been realized gasification, the cooling effectiveness height under the unit water consumption.
Actual cooling-down effect at different cooling water temperature devices 3, there is a rational area distributions relation in water cooling heat exchanger 4 with air-cooled heat exchanger 2, this must combine with cold-producing medium variations in temperature during heat release in heat exchanger, otherwise is easy to cause the unreasonable and waste that brings material of air-cooled heat exchanger heat transfer temperature difference.For the strong water-cooling apparatus of cooling ability, the design of water cooling heat exchanger 4 media of both sides need be given full play to the superiority of counter-current flow.

Claims (9)

1. air-conditioning system, comprise the cooling cycle system that is provided with compressor, air cooling heat-exchanger rig, throttling arrangement and evaporimeter, it is characterized in that: described air-conditioning system also comprises the cooling water circulation subsystem of being made up of water-cooled heat-exchanger rig and cooling water temperature device and water pipeline, the refrigerant inlet of water-cooled heat-exchanger rig is connected with air cooling heat-exchanger rig refrigerant outlet, and the refrigerant outlet of water-cooled heat-exchanger rig is connected with the refrigerant inlet of throttling arrangement.
2. air-conditioning system according to claim 1 is characterized in that: described air-conditioning system also comprise make outside air and cooling water circulation subsystem carry out after the wet exchange of heat again with the air cooling heat-exchanger rig in the cold-producing medium air cooling circulation subsystem of carrying out heat exchange.
3. air-conditioning system according to claim 2 is characterized in that: described air cooling circulation subsystem comprises air channel and the air cooling heat-exchanger rig that is arranged in the cooling water temperature device.
4. air-conditioning system according to claim 3 is characterized in that: also be provided with in the described air cooling circulation subsystem outside air is sucked blower fan in the air channel.
5. air-conditioning system according to claim 4 is characterized in that: described cooling water temperature device is a cooling tower, or the multichannel evaporation-cooled device, or direct evaporation-cooled device, or apparatus for cooling by indirect evaporation, perhaps their any combination.
6. air-conditioning system according to claim 5 is characterized in that: also be provided with the water pump that cooling water is sprayed in from the water cooling heat exchanger forced flow to the cooling water temperature device in the described water cooling circulation subsystem.
7. according to each described air-conditioning system of claim 1 to 5, it is characterized in that: described water cooling heat exchanger device is for realizing the plate type heat exchanger of water one condensation of refrigerant heat exchange, or shell and tube exchanger, or double pipe heat exchanger, or the liquid-liquid heat exchanger of other pattern.
8. according to each described air-conditioning system of claim 1 to 5, it is characterized in that: described throttling arrangement is a capillary, or electric expansion valve, or heating power expansion valve, or restriction sleeve, or constant pressure valve, perhaps their any combination.
9. according to each described air-conditioning system of claim 1 to 5, it is characterized in that: described evaporimeter is a cooling/dehumidifying evaporimeter, and its installation site can be combined with system host or separate.
CNU2006200602505U 2006-06-13 2006-06-13 Air-conditioning system of raising refrigeration efficiency Expired - Fee Related CN2909073Y (en)

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104566709A (en) * 2014-08-01 2015-04-29 浠水酷泞科技有限公司 Household air conditioning method and device of water cooling refrigerating working medium
CN106594914A (en) * 2016-12-20 2017-04-26 苏州美高图环境技术有限公司 Air treatment system
CN106931565A (en) * 2015-12-31 2017-07-07 深圳市蓝云科学技术有限公司 Cooling device and has the air-conditioning of the cooling device
CN110471513A (en) * 2018-05-09 2019-11-19 浙江盾安人工环境股份有限公司 A kind of heat sink assembly, air-cooled radiator and air-conditioning equipment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104566709A (en) * 2014-08-01 2015-04-29 浠水酷泞科技有限公司 Household air conditioning method and device of water cooling refrigerating working medium
CN106931565A (en) * 2015-12-31 2017-07-07 深圳市蓝云科学技术有限公司 Cooling device and has the air-conditioning of the cooling device
CN106594914A (en) * 2016-12-20 2017-04-26 苏州美高图环境技术有限公司 Air treatment system
CN110471513A (en) * 2018-05-09 2019-11-19 浙江盾安人工环境股份有限公司 A kind of heat sink assembly, air-cooled radiator and air-conditioning equipment
CN110471513B (en) * 2018-05-09 2022-03-08 浙江盾安人工环境股份有限公司 Radiator assembly, air-cooled radiator and air conditioning equipment

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C17 Cessation of patent right
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Granted publication date: 20070606