CN101290149A - Fresh air energy-saving system for air conditioner - Google Patents
Fresh air energy-saving system for air conditioner Download PDFInfo
- Publication number
- CN101290149A CN101290149A CNA2007100397603A CN200710039760A CN101290149A CN 101290149 A CN101290149 A CN 101290149A CN A2007100397603 A CNA2007100397603 A CN A2007100397603A CN 200710039760 A CN200710039760 A CN 200710039760A CN 101290149 A CN101290149 A CN 101290149A
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- air
- water chilling
- fresh air
- heat exchanger
- chilling units
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- Air Conditioning Control Device (AREA)
Abstract
The invention provides a fresh air energy-saving system used for an air conditioning, consisting of an air conditioning unit, a fresh air handling unit and a water chilling unit, wherein, a heat exchanger is arranged in the air conditioning unit; a precooling coil is arranged in the fresh air handling unit; one end of the heat exchanger is connected with an output end of the water chilling unit through a pipeline, and the other end of the heat exchanger is connected with an input end of the water chilling unit after being connected with the precooling coil through a pipeline; a by-pass pipeline is arranged between the input end and the output end of the water chilling unit; and a by-pass control valve is arranged in the by-pass pipeline. The invention uses outdoor fresh air to cool hot water flowing out from the heat exchanger in the air conditioning unit through the precooling coil, can heat the fresh air to a comfortable temperature and cool the air conditioning unit at the same time. When an outdoor air dry-bulb temperature is lower than 10 DEG C, and a wet-bulb temperature is lower than 7 DEG C, the water chilling unit needs not be started, thereby reducing energy consumption. The fresh air energy-saving system has the advantages of simpleness, efficiency, energy conservation, comfortableness and easy popularization, and can be realized only by slight improvement on the designing method of air conditionings of the prior public buildings.
Description
Technical field
The present invention relates to aeration technology, relate in particular to the control technology of air quantity variable air conditioner, particularly a kind of fresh air energy-saving system that is used for air-conditioning.
Background technology
Air conditioning system with variable is used widely.In the prior art, the cooling system in the air quantity variable air conditioner requires the expenditure of energy, and the energy-saving effect of air conditioning system with variable is restricted.
Summary of the invention
The purpose of this invention is to provide a kind of fresh air energy-saving system that is used for air-conditioning, described this method will solve the technical problem that the cooling system in the prior art air quantity variable air conditioner requires the expenditure of energy.
This fresh air energy-saving system of air-conditioning that is used for of the present invention is by the air-conditioning unit, fresh air conditioner case and handpiece Water Chilling Units constitute, be provided with heat exchanger in the described air-conditioning unit, the medium that adopts in the described heat exchanger is a water, be provided with pre-cooled coil pipe in the described fresh air conditioner case, wherein, one end of described heat exchanger is connected with the output of handpiece Water Chilling Units by pipeline, the other end of heat exchanger by pipeline be connected with the input of handpiece Water Chilling Units again after described pre-cooled coil pipe is connected, be provided with bypass duct between the output of handpiece Water Chilling Units and the input, be provided with the Bypass Control valve in the described bypass duct.
Further, be provided with by-pass valve control before the input of handpiece Water Chilling Units.
Further, the control end of the control end of described handpiece Water Chilling Units, the control end of by-pass valve control and Bypass Control valve is connected with controller, and described controller is connected with temperature sensor.
Further, described handpiece Water Chilling Units is lower than 10 ℃, out of service when wet-bulb temperature is lower than 7 ℃ at outdoor air dry-bulb temperature.
Operation principle of the present invention is: be lower than 10 ℃ at outdoor air dry-bulb temperature, when wet-bulb temperature is lower than 7 ℃, closes handpiece Water Chilling Units and close the preceding by-pass valve control of handpiece Water Chilling Units input, open the Bypass Control valve.The hot water that heat exchanger flows out from the air-conditioning unit enters pre-cooled coil pipe, and pre-cooled coil pipe heats new wind, makes water cooling in the pre-cooled coil pipe from outdoor new wind, and the water outlet of pre-cooled coil pipe is through getting back to behind the bypass duct in the air-conditioning unit in the heat exchanger.
The present invention and prior art contrast, and its effect is actively with tangible.The present invention utilizes outdoor new wind by pre-cooled coil pipe the hot water that heat exchanger in the air-conditioning unit flows out to be cooled off, and can heat new wind to being fit to temperature, simultaneously the air-conditioning unit is cooled off.Be lower than 10 ℃ at outdoor air dry-bulb temperature, when wet-bulb temperature is lower than 7 ℃, need not to open handpiece Water Chilling Units, thereby reduce energy resource consumption.The present invention simply effective, energy-conservation comfortable, be easy to popularize.On existing public building Air-conditioner design method, only need to improve a little, can realize.
Description of drawings
Fig. 1 is the realization schematic diagram of an embodiment of the fresh air energy-saving system that is used for air-conditioning of the present invention.
The specific embodiment
As shown in Figure 1, the fresh air energy-saving system of air-conditioning that is used for of the present invention is by air-conditioning unit 1, fresh air conditioner case 2 and handpiece Water Chilling Units 4 constitute, be provided with heat exchanger 3 in the described air-conditioning unit 1, the medium that adopts in the described heat exchanger 3 is a water, be provided with pre-cooled coil pipe 5 in the described fresh air conditioner case 2, wherein, one end of described heat exchanger 3 is connected by the output of pipeline with handpiece Water Chilling Units 4, the other end of heat exchanger 3 by pipeline be connected with the input of handpiece Water Chilling Units 4 again after described pre-cooled coil pipe 5 is connected, be provided with bypass duct 6 between the output of handpiece Water Chilling Units 4 and the input, be provided with Bypass Control valve 7 in the described bypass duct 6.
Further, be provided with by-pass valve control 8 before the input of handpiece Water Chilling Units 4.
Further, the control end of the control end of described handpiece Water Chilling Units 4, by-pass valve control 8 and the control end of Bypass Control valve 7 are connected with the controller (not shown), and described controller is connected with the temperature sensor (not shown).
Further, described handpiece Water Chilling Units 4 is lower than 10 ℃, out of service when wet-bulb temperature is lower than 7 ℃ at outdoor air dry-bulb temperature.
Operation principle of the present invention is: be lower than 10 ℃ at outdoor air dry-bulb temperature, when wet-bulb temperature is lower than 7 ℃, closes handpiece Water Chilling Units 4 and close the preceding by-pass valve control 8 of handpiece Water Chilling Units 4 inputs, open Bypass Control valve 7.The hot water that heat exchanger 3 flows out from air-conditioning unit 1 enters pre-cooled coil pipe 5, the new wind of pre-cooled coil pipe 5 heating, make water cooling in the pre-cooled coil pipe 5 from outdoor new wind, the water outlet of pre-cooled coil pipe 5 is through getting back to behind the bypass duct 6 in the air-conditioning unit 1 in the heat exchanger 3.
In illustrated embodiment of the present invention, enter temperature≤15 ℃ of the cooling water before the heat exchanger 3, the water temperature through over-heat-exchanger 3 after≤20 ℃ are when passing through pre-cooled coil pipe 5, by from outdoor new air cooling to 14 ℃, get back to water temperature≤15 ℃ in the bypass duct 6.
Claims (4)
1. fresh air energy-saving system that is used for air-conditioning, by the air-conditioning unit, fresh air conditioner case and handpiece Water Chilling Units constitute, be provided with heat exchanger in the described air-conditioning unit, the medium that adopts in the described heat exchanger is a water, be provided with pre-cooled coil pipe in the described fresh air conditioner case, it is characterized in that: an end of described heat exchanger is connected with the output of handpiece Water Chilling Units by pipeline, the other end of heat exchanger by pipeline be connected with the input of handpiece Water Chilling Units again after described pre-cooled coil pipe is connected, be provided with bypass duct between the output of handpiece Water Chilling Units and the input, be provided with the Bypass Control valve in the described bypass duct.
2. the fresh air energy-saving system that is used for air-conditioning as claimed in claim 1 is characterized in that: be provided with by-pass valve control before the input of handpiece Water Chilling Units.
3. the fresh air energy-saving system that is used for air-conditioning as claimed in claim 1 is characterized in that: the control end of the control end of described handpiece Water Chilling Units, the control end of by-pass valve control and Bypass Control valve is connected with controller, and described controller is connected with temperature sensor.
4. the fresh air energy-saving system that is used for air-conditioning as claimed in claim 3 is characterized in that: described handpiece Water Chilling Units is lower than 10 ℃, out of service when wet-bulb temperature is lower than 7 ℃ at outdoor air dry-bulb temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100397603A CN101290149A (en) | 2007-04-20 | 2007-04-20 | Fresh air energy-saving system for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100397603A CN101290149A (en) | 2007-04-20 | 2007-04-20 | Fresh air energy-saving system for air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101290149A true CN101290149A (en) | 2008-10-22 |
Family
ID=40034514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100397603A Pending CN101290149A (en) | 2007-04-20 | 2007-04-20 | Fresh air energy-saving system for air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101290149A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329729A (en) * | 2014-10-24 | 2015-02-04 | 世源科技工程有限公司 | Free cooling and heating system |
| CN111164350A (en) * | 2017-11-29 | 2020-05-15 | 汤姆.阿斯科 | Method for conditioning air |
| CN111988962A (en) * | 2020-08-20 | 2020-11-24 | 武汉众维亿方大数据科技有限公司 | Heat exchange device and heat exchange method for exchanging heat for cabinet air conditioner |
-
2007
- 2007-04-20 CN CNA2007100397603A patent/CN101290149A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329729A (en) * | 2014-10-24 | 2015-02-04 | 世源科技工程有限公司 | Free cooling and heating system |
| CN111164350A (en) * | 2017-11-29 | 2020-05-15 | 汤姆.阿斯科 | Method for conditioning air |
| US11168905B2 (en) | 2017-11-29 | 2021-11-09 | Tom ASCOUGH | Use of cooling system to heat air supply |
| CN111164350B (en) * | 2017-11-29 | 2021-11-16 | 汤姆.阿斯科 | Method for conditioning air |
| CN111988962A (en) * | 2020-08-20 | 2020-11-24 | 武汉众维亿方大数据科技有限公司 | Heat exchange device and heat exchange method for exchanging heat for cabinet air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081022 |