CN102980273A - Variable water temperature control method based on valve location method - Google Patents
Variable water temperature control method based on valve location method Download PDFInfo
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- CN102980273A CN102980273A CN2012105418965A CN201210541896A CN102980273A CN 102980273 A CN102980273 A CN 102980273A CN 2012105418965 A CN2012105418965 A CN 2012105418965A CN 201210541896 A CN201210541896 A CN 201210541896A CN 102980273 A CN102980273 A CN 102980273A
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Abstract
The invention relates to a variable water temperature control method based on a valve location method, and the method comprises the following steps that (1) the opening degree value of an automatic control valve on the water side of equipment on the tail end of an air conditioner is monitored; (2) if the opening degree value of the automatic control valve is within a preset scope, the temperature of chilled water or hot water remains unchanged; and (3) if the opening degree value of the automatic control valve is higher than or lower than a preset scope, the temperature of the chilled water or the hot water is regulated, and the step (1) is returned. According to the variable water temperature control method based on the valve location method, , the temperature rising and dropping efficiency of a host of the air conditioner is judged by monitoring the opening degree value of the automatic control valve on the water side of the equipment on the tail end of the air conditioner, the higher the temperature rising and dropping efficiency is the higher the energy consumption is, and too high temperature rising and dropping efficiency causes the waste of a large amount of energy. The temperature rising and dropping efficiency of the air conditioner is regulated by adjusting the chilled water or the hot water of the host of the air conditioner, so that not only can the host of the air conditioner meet the temperature rising and dropping requirements but also the energy consumption can be reduced.
Description
Technical field
The present invention relates to the air-conditioning control field, particularly a kind of control method of regulating air conditioning water or hot water temperature.
Background technology
Between the refrigeration host computer and indoor end air-conditioning equipment of existing main flow central air conditioner system, circulate to transmit cold by chilled water, its supply and return water temperature is generally 7/12 ℃, the technical schemes such as 6/13 ℃, 5/13 ℃ of employing are also arranged, its common feature is annual fixedly supply and return water temperature, can satisfy the refrigeration demand of annual maximum load condition, but peak load generally only accounts for about 3% of year round cooling running time running time, all the other times can be improved the chilled water temperature operation, and are not only energy-conservation but also can satisfy instructions for use.
According to pertinent literature and a large amount of manufacturer's measured data, 1 ℃ of the every raising of chilled water temperature, fractional energy savings is 3 ~ 4%, and the chilled water supply water temperature can change in 7 ~ 15 ℃ of scopes in the whole refrigeration phase, and maximum instantaneous fractional energy savings can reach 28%, and the energy saving space is very large.
During the heat supply of heat pump type air conditioner main frame, its supply and return water temperature generally is fixed as 50/45 ℃ or 45/40 ℃, all reduces hot water temperature's operation in the most of the time, can obtain same energy-saving effect.
Summary of the invention
Purpose of the present invention just provides a kind of valve position method and becomes temperature control method of water, and it can judge air-conditioner host refrigeration or the efficient that heats by the automatic regulating valve opening value, thus the temperature of regulating freezing or hot water.
The objective of the invention is to realize by such technical scheme, it is characterized in that concrete steps are as follows:
1) opening value of the automatic regulating valve of monitoring air conditioner end equipment water side;
2) if the opening value of automatic regulating valve is positioned within the preset range, then keep the temperature-resistant of chilled water or hot water;
3) if the opening value of automatic regulating valve is higher or lower than preset range, then regulate the temperature of chilled water or hot water, and turn to step 1).
Further, the concrete control method in the step 3) is: air-conditioning is processed the refrigeration work pattern, and the opening value of automatic regulating valve is lower than the lower limit of preset range, then improves the temperature of chilled water; The opening value of automatic regulating valve is higher than the upper limit of preset range, then reduces the temperature of chilled water.
Further, the concrete control method in the step 3) is: air-conditioning is processed and is heated mode of operation, and the opening value of automatic regulating valve is lower than the lower limit of preset range, then reduces the temperature of hot water; The opening value of automatic regulating valve is higher than the upper limit of preset range, then improves the temperature of hot water.
Further, in described air conditioning water or hot water, be added with antisludging agent.
Further, in described air conditioning water or hot water, be added with corrosion inhibiter.
Further, be added with bactericide at described air conditioning water or hot water.
Further, in described air conditioning water or hot water, be added with drag reducer.
Further, be added with surfactant at described air conditioning water or hot water.
Owing to adopted technique scheme, the present invention to have following advantage:
The present invention judges the heating-cooling efficient of air-conditioner host by the opening value of the automatic regulating valve of monitoring air conditioner end equipment water side, and heating-cooling efficient more highly energy-consuming is larger, and too high heating-cooling efficient can cause the waste of large energy.Heating-cooling efficient by the temperature of regulating air-conditioner host chilled water or hot water is regulated air-conditioning makes air-conditioner host can satisfy the heating-cooling requirement, can reduce energy consumption again.
Other advantages of the present invention, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on being apparent to those skilled in the art to investigating hereinafter, perhaps can obtain from the practice of the present invention instruction.Target of the present invention and other advantages can realize and obtain by following specification and claims.
Description of drawings
Description of drawings of the present invention is as follows.
Fig. 1 is theory diagram of the present invention.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
The valve position method becomes temperature control method of water, and concrete steps are as follows:
1) opening value of the automatic regulating valve of monitoring air conditioner end equipment water side;
2) if the opening value of automatic regulating valve is positioned within the preset range, then keep the temperature-resistant of chilled water or hot water;
3) if the opening value of automatic regulating valve is higher or lower than preset range, then regulate the temperature of chilled water or hot water, and turn to step 1).
Concrete control method in the step 3) is: air-conditioning is processed the refrigeration work pattern, and the opening value of automatic regulating valve is lower than the lower limit of preset range, then improves the temperature of chilled water; The opening value of automatic regulating valve is higher than the upper limit of preset range, then reduces the temperature of chilled water.
Concrete control method in the step 3) is: air-conditioning is processed and is heated mode of operation, and the opening value of automatic regulating valve is lower than the lower limit of preset range, then reduces the temperature of hot water; The opening value of automatic regulating valve is higher than the upper limit of preset range, then improves the temperature of hot water.
The present invention judges the heating-cooling efficient of air-conditioner host by the opening value of the automatic regulating valve of monitoring air conditioner end equipment water side, and heating-cooling efficient more highly energy-consuming is larger, and too high heating-cooling efficient can cause the waste of large energy.Heating-cooling efficient by the temperature of regulating air-conditioner host chilled water or hot water is regulated air-conditioning makes air-conditioner host can satisfy the heating-cooling requirement, can reduce energy consumption again.
In described air conditioning water or hot water, can be added with antisludging agent, corrosion inhibiter, bactericide, drag reducer, surfactant.
Embodiment:
The one cinema screening Room is arranged, and when air-conditioning system cooling load rate was 50%, the chilled water supply water temperature can be adjusted to 8 ~ 12 ℃ of operations.Control system gathers the valve position value every 1 ~ 15 minute time-count cycle from the water side automatic regulating valve of air conditioner end equipment, if be higher than the valve position setting value upper limit, can be according to the gap size of valve position value and setting value, with main frame chilled water supply water temperature reduction by 1 ~ several regulate step-length; If the valve position value is lower than the setting value lower limit, then with main frame chilled water supply water temperature raising 1 ~ several regulate step-length; If the valve position value is in setting range, it is constant then to keep chilled water temperature.
Because the large inertia feature that has of air-conditioning system itself, only need to adjust the size of adjusting step value of length, the main frame water temperature of time-count cycle, this method just can realize air-conditioning system closely the following varying loading of exerting oneself well.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from aim and the scope of the technical program, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (8)
1. the valve position method becomes temperature control method of water, it is characterized in that concrete steps are as follows:
1) opening value of the automatic regulating valve of monitoring air conditioner end equipment water side;
2) if the opening value of automatic regulating valve is positioned within the preset range, then keep the temperature-resistant of chilled water or hot water;
3) if the opening value of automatic regulating valve is higher or lower than preset range, then regulate the temperature of chilled water or hot water, and turn to step 1).
2. valve position method as claimed in claim 1 becomes temperature control method of water, it is characterized in that the concrete control method in the step 3) is: air-conditioning is processed the refrigeration work pattern, and the opening value of automatic regulating valve is lower than the lower limit of preset range, then improves the temperature of chilled water; The opening value of automatic regulating valve is higher than the upper limit of preset range, then reduces the temperature of chilled water.
3. valve position method as claimed in claim 1 becomes temperature control method of water, it is characterized in that the concrete control method in the step 3) is: air-conditioning is processed and is heated mode of operation, and the opening value of automatic regulating valve is lower than the lower limit of preset range, then reduces the temperature of hot water; The opening value of automatic regulating valve is higher than the upper limit of preset range, then improves the temperature of hot water.
4. become temperature control method of water such as valve position method as described in the claims 1 to 3 any one, it is characterized in that: in described air conditioning water or hot water, be added with antisludging agent.
5. become temperature control method of water such as valve position method as described in the claims 1 to 3 any one, it is characterized in that: in described air conditioning water or hot water, be added with corrosion inhibiter.
6. become temperature control method of water such as valve position method as described in the claims 1 to 3 any one, it is characterized in that: be added with bactericide at described air conditioning water or hot water.
7. become temperature control method of water such as valve position method as described in the claims 1 to 3 any one, it is characterized in that: in described air conditioning water or hot water, be added with drag reducer.
8. become temperature control method of water such as valve position method as described in the claims 1 to 3 any one, it is characterized in that: be added with surfactant at described air conditioning water or hot water.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210541896.5A CN102980273B (en) | 2012-12-14 | 2012-12-14 | Variable water temperature control method based on valve location method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210541896.5A CN102980273B (en) | 2012-12-14 | 2012-12-14 | Variable water temperature control method based on valve location method |
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| CN102980273A true CN102980273A (en) | 2013-03-20 |
| CN102980273B CN102980273B (en) | 2014-12-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930672A (en) * | 2015-07-16 | 2015-09-23 | 珠海格力电器股份有限公司 | Chilled water supply temperature control method and device |
| CN110207289A (en) * | 2018-02-28 | 2019-09-06 | 江森自控科技公司 | House heating and cooling system |
| CN115183435A (en) * | 2022-06-13 | 2022-10-14 | 西安华为数字能源技术有限公司 | Control method and device of air conditioning system |
Citations (4)
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| KR20020048697A (en) * | 2000-12-18 | 2002-06-24 | 윤종용 | Air conditioner having expansion control unit and its method |
| US20020124992A1 (en) * | 2001-03-12 | 2002-09-12 | Rainer Leo I. | Integrated ventilation cooling system |
| CN1920423A (en) * | 2005-08-22 | 2007-02-28 | 乐金电子(天津)电器有限公司 | Air conditioner temperature control apparatus and method therefor |
| CN102155766A (en) * | 2011-03-30 | 2011-08-17 | 浙江大学 | Constant-temperature and constant-humidity air conditioning system adopting variable-flow variable-water-temperature surface cooler |
-
2012
- 2012-12-14 CN CN201210541896.5A patent/CN102980273B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020048697A (en) * | 2000-12-18 | 2002-06-24 | 윤종용 | Air conditioner having expansion control unit and its method |
| US20020124992A1 (en) * | 2001-03-12 | 2002-09-12 | Rainer Leo I. | Integrated ventilation cooling system |
| CN1920423A (en) * | 2005-08-22 | 2007-02-28 | 乐金电子(天津)电器有限公司 | Air conditioner temperature control apparatus and method therefor |
| CN102155766A (en) * | 2011-03-30 | 2011-08-17 | 浙江大学 | Constant-temperature and constant-humidity air conditioning system adopting variable-flow variable-water-temperature surface cooler |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930672A (en) * | 2015-07-16 | 2015-09-23 | 珠海格力电器股份有限公司 | Chilled water supply temperature control method and device |
| CN104930672B (en) * | 2015-07-16 | 2017-11-21 | 珠海格力电器股份有限公司 | The control method and device of the supply water temperature of chilled water |
| CN110207289A (en) * | 2018-02-28 | 2019-09-06 | 江森自控科技公司 | House heating and cooling system |
| CN115183435A (en) * | 2022-06-13 | 2022-10-14 | 西安华为数字能源技术有限公司 | Control method and device of air conditioning system |
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| CN102980273B (en) | 2014-12-10 |
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