CN102927657A - Water temperature change control method by air-conditioner temperature change speed method - Google Patents
Water temperature change control method by air-conditioner temperature change speed method Download PDFInfo
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- CN102927657A CN102927657A CN201210490428XA CN201210490428A CN102927657A CN 102927657 A CN102927657 A CN 102927657A CN 201210490428X A CN201210490428X A CN 201210490428XA CN 201210490428 A CN201210490428 A CN 201210490428A CN 102927657 A CN102927657 A CN 102927657A
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Abstract
The invention discloses a water temperature change control method by an air-conditioner temperature change speed method. The water temperature change control method by the air-conditioner temperature change speed method particularly comprises the following steps of: 1) collecting temperature data in an air-conditioner region by a temperature sensor; 2) calculating the temperature change speed in the air-conditioner region; 3) comparing a result obtained from the step 2) with the preset threshold, keeping the air-conditioner refrigeration water temperature of the result is within the preset threshold, and switching to the step 4) if the result exceeds the preset threshold; and 4) regulating the air-conditioner refrigeration water temperature, and switching to the step 1). According to the invention, through regulating the temperature rising and reduction efficiency of an air conditioner through regulating the air-conditioner refrigeration water or hot water temperatures, thus the air conditioner not only can meet the temperature rising and reduction requirements, but also energy consumption can be lowered.
Description
Technical field
The present invention relates to a kind of air-conditioning control field, particularly a kind of control method of regulating air conditioning water or hot water temperature.
Background technology
Between the main frame 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 ℃, also have and adopt 6/13 ℃, the technical scheme such as 5/13 ℃, its common feature is annual fixedly supply and return water temperature, can satisfy fully loaded refrigeration demand under the hot weather condition whole year, but the oepration at full load time generally only accounts for about 3% of annual air-conditioner operation time, all the other times can be improved the chilled water temperature operation, if still fixedly chilled water temperature operation, can cause the waste of the energy, increase use cost.
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 is generally 50/45 ℃ or 45/40 ℃, reduces the hot water temperature and can obtain same energy-saving effect.
Summary of the invention
Purpose of the present invention just provides a kind of air-conditioning temperature and becomes tachometric method change temperature control method of water, it can utilize the air temperature variations speed of air conditioning area to regulate the air-conditioner host leaving water temperature, can satisfy under the condition of cooling and warming, the control leaving water temperature reaches the effect of saving air conditioning energy consumption.
The objective of the invention is to realize that by such technical scheme concrete steps are as follows:
1) by the temperature data in the temperature sensor collection air conditioning area;
2) speed of variations in temperature in the calculating air conditioning area;
3) with step 2) result and the predetermined threshold value that obtain compare, if in the predetermined threshold value scope, then keeps air conditioning water or hot water temperature; If surpass predetermined threshold value, then change step 4) over to;
4) regulate air conditioning water or hot water temperature, and change step 1) over to.
Further, the temperature changing speed that calculates step 2) is that temperature rising speed or temperature underspeed.
Further, for temperature-rise period, if temperature rising speed is higher than predetermined threshold value, then regulates the air conditioning hot temperature and reduce, if temperature rising speed is lower than predetermined threshold value, then regulates the air conditioning hot temperature and raise.
Further, for temperature-fall period, be higher than predetermined threshold value if temperature underspeeds, then regulate the air-condition freezing coolant-temperature gage and raise, be lower than predetermined threshold value if temperature underspeeds, then regulate the air-condition freezing coolant-temperature gage and reduce.
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, in described air conditioning water or hot water, be added with bactericide.
Further, in described air conditioning water or hot water, be added with drag reducer.
Further, in described air conditioning water or hot water, be added with surfactant.
Owing to adopted technique scheme, the present invention to have following advantage:
The present invention judges the heating-cooling efficient of air-conditioning by calculating the pace of change of temperature in the air conditioning area, and heating-cooling efficient more highly energy-consuming is larger, and when not needing oepration at full load, too high heating-cooling efficient can cause the waste of large energy.The heating-cooling efficient of regulating air-conditioning by regulating air conditioning water or hot water temperature makes air-conditioning 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 control flow schematic diagram of the present invention.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
The air-conditioning temperature becomes tachometric method and becomes temperature control method of water, and concrete steps are as follows:
1) by the temperature data in the temperature sensor collection air conditioning area;
2) speed of variations in temperature in the calculating air conditioning area;
3) with step 2) result and the predetermined threshold value that obtain compare, if in the predetermined threshold value scope, then keeps air conditioning water or hot water temperature; If surpass predetermined threshold value, then change step 4) over to;
4) regulate air conditioning water or hot water temperature, and change step 1) over to.
Step 2) temperature changing speed that calculates in is that temperature rising speed or temperature underspeed.
For temperature-rise period, if temperature rising speed is higher than predetermined threshold value, then regulates the air conditioning hot temperature and reduce, if temperature rising speed is lower than predetermined threshold value, then regulates the air conditioning hot temperature and raise.
For temperature-fall period, if underspeeding, temperature is higher than predetermined threshold value, then regulate the air-condition freezing coolant-temperature gage and raise, if underspeeding, temperature is lower than predetermined threshold value, then regulate the air-condition freezing coolant-temperature gage and reduce.
In described air conditioning water or hot water, can be added with antisludging agent, corrosion inhibiter, bactericide, drag reducer, surfactant.
The present invention judges the heating-cooling efficient of air-conditioning by calculating the pace of change of temperature in the air conditioning area, and heating-cooling efficient more highly energy-consuming is larger, and when not needing oepration at full load, too high heating-cooling efficient can cause the waste of large energy.By regulating air conditioning water or hot water temperature, the heating-cooling efficient of regulating air-conditioning is improved the air-conditioner host operating condition, makes air-conditioning can satisfy the heating-cooling requirement, can reduce energy consumption again.
Embodiment:
One office building is arranged, and when air-conditioning system cooling load rate was 30%, the chilled water supply water temperature can be adjusted to 9 ~ 11 ℃ of operations.Control system gathers the indoor temperature value every 1 ~ 15 minute time-count cycle from room air temperature sensor, and then calculates the indoor air temperature pace of change.
The indoor temperature setting value is upper prescribes a time limit when indoor air temperature reaches, record indoor air temperature this moment, begin simultaneously timing, again record real-time indoor air temperature when finish time-count cycle, calculate the cooling rate value, if be higher than the cooling rate setting value upper limit, can according to the gap size of cooling rate value and setting value, main frame chilled water supply water temperature be improved 1 to several adjusting step-lengths; If the cooling rate value is lower than the setting value lower limit, then main frame chilled water supply water temperature is reduced by 1 to several adjusting step-lengths; If the cooling rate 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 (9)
1. the air-conditioning temperature becomes tachometric method and becomes temperature control method of water, it is characterized in that concrete steps are as follows:
1) by the temperature data in the temperature sensor collection air conditioning area;
2) speed of variations in temperature in the calculating air conditioning area;
3) with step 2) result and the predetermined threshold value that obtain compare, if in the predetermined threshold value scope, then keeps air conditioning water or hot water temperature; If surpass predetermined threshold value, then change step 4) over to;
4) regulate air conditioning water or hot water temperature, and change step 1) over to.
2. air-conditioning temperature as claimed in claim 1 becomes tachometric method and becomes temperature control method of water, it is characterized in that: step 2) in the temperature changing speed that calculates be that temperature rising speed or temperature underspeed.
3. air-conditioning temperature as claimed in claim 2 becomes tachometric method and becomes temperature control method of water, it is characterized in that: for temperature-rise period, if temperature rising speed is higher than predetermined threshold value, then regulates the air conditioning hot temperature and reduce, if temperature rising speed is lower than predetermined threshold value, then regulates the air conditioning hot temperature and raise.
4. air-conditioning temperature as claimed in claim 2 becomes tachometric method and becomes temperature control method of water, it is characterized in that: for temperature-fall period, be higher than predetermined threshold value if temperature underspeeds, then regulate the air-condition freezing coolant-temperature gage and raise, be lower than predetermined threshold value if temperature underspeeds, then regulate the air-condition freezing coolant-temperature gage and reduce.
5. become tachometric method such as air-conditioning temperature as described in claim 1 to 5 any one and become temperature control method of water, it is characterized in that: in described air conditioning water or hot water, be added with antisludging agent.
6. become tachometric method such as air-conditioning temperature as described in claim 1 to 5 any one and become temperature control method of water, it is characterized in that: in described air conditioning water or hot water, be added with corrosion inhibiter.
7. become tachometric method such as air-conditioning temperature as described in claim 1 to 5 any one and become temperature control method of water, it is characterized in that: be added with bactericide at described air conditioning water or hot water.
8. become tachometric method such as air-conditioning temperature as described in claim 1 to 5 any one and become temperature control method of water, it is characterized in that: in described air conditioning water or hot water, be added with drag reducer.
9. become tachometric method such as air-conditioning temperature as described in claim 1 to 5 any one and become temperature control method of water, it is characterized in that: be added with surfactant at described air conditioning water or hot water.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329771A (en) * | 2014-10-08 | 2015-02-04 | 美的集团股份有限公司 | Control method and system of air conditioner as well as air conditioner |
| CN104456836A (en) * | 2014-11-04 | 2015-03-25 | 江苏省电力公司 | Method for controlling orderly power utilization of central air conditioner based on load relation |
| CN105652657A (en) * | 2015-12-30 | 2016-06-08 | 国家电网公司 | Automatic pipe warming method for steam pipeline of thermodynamic system |
| CN108731195A (en) * | 2017-04-19 | 2018-11-02 | 广州市华德工业有限公司 | A kind of temperature control method of water and device |
| CN109237713A (en) * | 2018-09-25 | 2019-01-18 | 珠海格力电器股份有限公司 | Water multi-connected unit operation control method and device, medium and water multi-connected air conditioning system |
| CN110762732A (en) * | 2019-10-30 | 2020-02-07 | 南京亚派软件技术有限公司 | Chilled water supply water temperature setting method and system for refrigeration host of central air-conditioning system |
| CN110906509A (en) * | 2019-10-23 | 2020-03-24 | 广东申菱环境系统股份有限公司 | Heating, ventilating and air conditioning system and control method thereof |
| CN110940063A (en) * | 2019-11-15 | 2020-03-31 | 珠海格力电器股份有限公司 | Target water temperature control method and device, storage medium and water multi-connected system |
| CN111473887A (en) * | 2020-05-06 | 2020-07-31 | Oppo广东移动通信有限公司 | Shell temperature acquisition method and device, storage medium and electronic equipment |
| CN113266925A (en) * | 2021-05-28 | 2021-08-17 | 广东纽恩泰新能源科技发展有限公司 | Control method and water temperature control device of two-combined heat pump system |
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| CN108731195A (en) * | 2017-04-19 | 2018-11-02 | 广州市华德工业有限公司 | A kind of temperature control method of water and device |
| CN109237713B (en) * | 2018-09-25 | 2020-06-09 | 珠海格力电器股份有限公司 | Water multi-connected unit operation control method and device, medium and water multi-connected air conditioning system |
| CN109237713A (en) * | 2018-09-25 | 2019-01-18 | 珠海格力电器股份有限公司 | Water multi-connected unit operation control method and device, medium and water multi-connected air conditioning system |
| CN110906509A (en) * | 2019-10-23 | 2020-03-24 | 广东申菱环境系统股份有限公司 | Heating, ventilating and air conditioning system and control method thereof |
| CN110762732A (en) * | 2019-10-30 | 2020-02-07 | 南京亚派软件技术有限公司 | Chilled water supply water temperature setting method and system for refrigeration host of central air-conditioning system |
| CN110762732B (en) * | 2019-10-30 | 2021-05-07 | 南京亚派软件技术有限公司 | Chilled water supply water temperature setting method and system for refrigeration host of central air-conditioning system |
| CN110940063A (en) * | 2019-11-15 | 2020-03-31 | 珠海格力电器股份有限公司 | Target water temperature control method and device, storage medium and water multi-connected system |
| CN111473887A (en) * | 2020-05-06 | 2020-07-31 | Oppo广东移动通信有限公司 | Shell temperature acquisition method and device, storage medium and electronic equipment |
| CN111473887B (en) * | 2020-05-06 | 2021-08-24 | Oppo广东移动通信有限公司 | Shell temperature acquisition method and device, storage medium and electronic equipment |
| CN113266925A (en) * | 2021-05-28 | 2021-08-17 | 广东纽恩泰新能源科技发展有限公司 | Control method and water temperature control device of two-combined heat pump system |
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