CN102927657B - 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
- Publication number
- CN102927657B CN102927657B CN201210490428.XA CN201210490428A CN102927657B CN 102927657 B CN102927657 B CN 102927657B CN 201210490428 A CN201210490428 A CN 201210490428A CN 102927657 B CN102927657 B CN 102927657B
- Authority
- CN
- China
- Prior art keywords
- temperature
- water
- air
- becomes
- air conditioning
- 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.)
- Active
Links
Landscapes
- Air Conditioning Control Device (AREA)
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 airconditioning control field, particularly a kind of control method regulating air conditioning water or hot water temperature.
Background technology
Between the main frame of existing main flow central air conditioner system and indoor end air-conditioning equipment, circulated by chilled water and transmit cold, its supply and return water temperature is generally 7/12 DEG C, also employing 6/13 DEG C is had, the technical scheme such as 5/13 DEG C, its common feature is annual fixing supply and return water temperature, fully loaded refrigeration demand under the most hot weather condition whole year can be met, 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 chilled water temperature and be run, if still fix chilled water temperature to run, the waste of the energy can be caused, increase use cost.
According to pertinent literature and a large amount of manufacturer's measured data, chilled water temperature often improves 1 DEG C, and fractional energy savings is 3 ~ 4%, and in the whole refrigeration phase, chilled water supply water temperature can change within the scope of 7 ~ 15 DEG C, 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 DEG C or 45/40 DEG C, reduces hot water temperature and can obtain same energy-saving effect.
Summary of the invention
Object of the present invention is just to provide 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 air-conditioner host leaving water temperature, under the condition meeting cooling and warming, leaving water temperature can be controlled, reach the effect of saving air conditioning energy consumption.
The object of the invention is by such technical scheme realize, concrete steps are as follows:
1) temperature data in air conditioning area is gathered by temperature sensor;
2) speed of variations in temperature in air conditioning area is calculated;
3) by step 2) result that obtains and predetermined threshold value compare, if in preset threshold range, then keeps air conditioning water or hot water temperature; If exceed predetermined threshold value, then proceed to step 4);
4) regulate air conditioning water or hot water temperature, and proceed to step 1).
Further, step 2) in the temperature changing speed that calculates be temperature ramp-up rate or temperature reducing rate.
Further, for temperature-rise period, if temperature ramp-up rate is higher than predetermined threshold value, then regulate air conditioning hot temperature to reduce, if temperature ramp-up rate is lower than predetermined threshold value, then regulate air conditioning hot temperature to raise.
Further, for temperature-fall period, if temperature reducing rate is higher than predetermined threshold value, then regulate air-condition freezing coolant-temperature gage to raise, if temperature reducing rate is lower than predetermined threshold value, then regulate air-condition freezing coolant-temperature gage to reduce.
Further, in described air conditioning water or hot water, antisludging agent is added with.
Further, in described air conditioning water or hot water, corrosion inhibiter is added with.
Further, in described air conditioning water or hot water, bactericide is added with.
Further, in described air conditioning water or hot water, drag reducer is added with.
Further, in described air conditioning water or hot water, surfactant is added with.
Owing to have employed technique scheme, the present invention has following advantage:
The present invention is by calculating the pace of change of temperature in air conditioning area, and judge the heating-cooling efficiency of air-conditioning, heating-cooling efficiency more highly energy-consuming is larger, and when not needing oepration at full load, too high heating-cooling efficiency can cause the waste of large energy.By the heating-cooling efficiency regulating air conditioning water or hot water temperature to regulate air-conditioning, make air-conditioning can meet heating-cooling requirement, can energy consumption be reduced 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 will be apparent to those skilled in the art to investigating hereafter, or can be instructed from the practice of the present invention.Target of the present invention and other advantages can be realized by description below and claims and be obtained.
Accompanying drawing explanation
Accompanying drawing of the present invention is described as follows.
Fig. 1 is control flow schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
Air-conditioning temperature becomes tachometric method and becomes temperature control method of water, and concrete steps are as follows:
1) temperature data in air conditioning area is gathered by temperature sensor;
2) speed of variations in temperature in air conditioning area is calculated;
3) by step 2) result that obtains and predetermined threshold value compare, if in preset threshold range, then keeps air conditioning water or hot water temperature; If exceed predetermined threshold value, then proceed to step 4);
4) regulate air conditioning water or hot water temperature, and proceed to step 1).
Step 2) in the temperature changing speed that calculates be temperature ramp-up rate or temperature reducing rate.
For temperature-rise period, if temperature ramp-up rate is higher than predetermined threshold value, then regulate air conditioning hot temperature to reduce, if temperature ramp-up rate is lower than predetermined threshold value, then regulate air conditioning hot temperature to raise.
For temperature-fall period, if temperature reducing rate is higher than predetermined threshold value, then regulate air-condition freezing coolant-temperature gage to raise, if temperature reducing rate is lower than predetermined threshold value, then regulate air-condition freezing coolant-temperature gage to reduce.
Antisludging agent, corrosion inhibiter, bactericide, drag reducer, surfactant can be added with in described air conditioning water or hot water.
The present invention is by calculating the pace of change of temperature in air conditioning area, and judge the heating-cooling efficiency of air-conditioning, heating-cooling efficiency more highly energy-consuming is larger, and when not needing oepration at full load, too high heating-cooling efficiency can cause the waste of large energy.By regulating air conditioning water or hot water temperature, regulating the heating-cooling efficiency of air-conditioning, improving air-conditioner host operating condition, make air-conditioning can meet heating-cooling requirement, can energy consumption be reduced again.
Embodiment:
Have an office building, when air-conditioning system cooling load rate is 30%, chilled water supply water temperature can adjust to 9 ~ 11 DEG C of operations.Control system every 1 ~ 15 minute time-count cycle indoor air temperature sensor gather Indoor Temperature angle value, and then calculate indoor air temperature pace of change.
Prescribe a time limit when indoor air temperature reaches in indoor temperature setting value, record now indoor air temperature, start timing simultaneously, real-time indoor air temperature is again recorded at the end of time-count cycle, calculate cooling rate value, if higher than the cooling rate setting value upper limit, according to the gap size of cooling rate value and setting value, main frame chilled water supply water temperature can be improved 1 and regulates step-length to several; If cooling rate value is lower than setting value lower limit, then main frame chilled water supply water temperature is reduced by 1 and regulate step-length to several; If cooling rate value is in setting range, then maintain chilled water temperature constant.
Due to the large inert character that air-conditioning system itself has, only need adjust the size of the length of time-count cycle, the adjustment step value of main frame water temperature, this method just can realize air-conditioning system well and to exert oneself closely following varying loading.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of the technical program, it all should be encompassed in the middle of right of the present invention.
Claims (6)
1. air-conditioning temperature becomes tachometric method and becomes temperature control method of water, and it is characterized in that, concrete steps are as follows:
1) temperature data in air conditioning area is gathered by temperature sensor;
2) speed of variations in temperature in air conditioning area is calculated;
3) by step 2) result that obtains and predetermined threshold value compare, if in preset threshold range, then keeps air conditioning water or hot water temperature; If exceed predetermined threshold value, then proceed to step 4);
4) regulate air conditioning water or hot water temperature, and proceed to step 1);
And step 2) in the temperature changing speed that calculates be temperature ramp-up rate or temperature reducing rate;
For temperature-rise period, if temperature ramp-up rate is higher than predetermined threshold value, then regulate air conditioning hot temperature to reduce, if temperature ramp-up rate is lower than predetermined threshold value, then regulate air conditioning hot temperature to raise;
For temperature-fall period, if temperature reducing rate is higher than predetermined threshold value, then regulate air-condition freezing coolant-temperature gage to raise, if temperature reducing rate is lower than predetermined threshold value, then regulate air-condition freezing coolant-temperature gage to reduce.
2. air-conditioning temperature becomes tachometric method and becomes temperature control method of water as claimed in claim 1, it is characterized in that: in described air conditioning water or hot water, be added with antisludging agent.
3. air-conditioning temperature becomes tachometric method and becomes temperature control method of water as claimed in claim 1, it is characterized in that: in described air conditioning water or hot water, be added with corrosion inhibiter.
4. air-conditioning temperature becomes tachometric method and becomes temperature control method of water as claimed in claim 1, it is characterized in that: be added with bactericide at described air conditioning water or hot water.
5. air-conditioning temperature becomes tachometric method and becomes temperature control method of water as claimed in claim 1, it is characterized in that: in described air conditioning water or hot water, be added with drag reducer.
6. air-conditioning temperature becomes tachometric method and becomes temperature control method of water as claimed in claim 1, it is characterized in that: be added with surfactant at described air conditioning water or hot water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210490428.XA CN102927657B (en) | 2012-11-28 | 2012-11-28 | Water temperature change control method by air-conditioner temperature change speed method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210490428.XA CN102927657B (en) | 2012-11-28 | 2012-11-28 | Water temperature change control method by air-conditioner temperature change speed method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102927657A CN102927657A (en) | 2013-02-13 |
| CN102927657B true CN102927657B (en) | 2015-03-11 |
Family
ID=47642521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210490428.XA Active CN102927657B (en) | 2012-11-28 | 2012-11-28 | Water temperature change control method by air-conditioner temperature change speed method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102927657B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329771B (en) * | 2014-10-08 | 2017-11-10 | 美的集团股份有限公司 | Control method, system and the air conditioner of air conditioner |
| CN104456836B (en) * | 2014-11-04 | 2017-04-12 | 江苏省电力公司 | Method for controlling orderly power utilization of central air conditioner based on load relation |
| CN105652657B (en) * | 2015-12-30 | 2018-09-07 | 国家电网公司 | A kind of automatic heating coil method for therrmodynamic system jet chimney |
| 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 |
| 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 |
| 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 |
| 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 |
| CN113266925B (en) * | 2021-05-28 | 2022-06-28 | 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 |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007010200A (en) * | 2005-06-29 | 2007-01-18 | Hitachi Ltd | Air conditioner and its control method |
| CN101392939A (en) * | 2008-11-18 | 2009-03-25 | 天津大学 | Nonlinear prediction and control method for independence energy supply temperature of buildings |
| CN201351980Y (en) * | 2008-12-30 | 2009-11-25 | 许璟 | Central air conditioner energy-saving control system |
| CN101691944A (en) * | 2009-10-15 | 2010-04-07 | 山东瑞斯高创股份有限公司 | Electricity-saving control method and electricity-saving control device of air conditioner |
| CN101769583A (en) * | 2009-12-30 | 2010-07-07 | 广东美的电器股份有限公司 | Air conditioner control method with compressor control temperature difference compensation function |
| CN101846361A (en) * | 2010-05-21 | 2010-09-29 | 广东美的电器股份有限公司 | Air conditioner for machine room and control method thereof |
| CN102003748A (en) * | 2009-09-01 | 2011-04-06 | 珠海格力电器股份有限公司 | Modular water chilling unit and intelligent control method thereof |
| CN102607138A (en) * | 2012-04-13 | 2012-07-25 | 北京海林节能设备股份有限公司 | Air-conditioning control method and air-conditioning control system for comprehensively-energy-saving building |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5770342A (en) * | 1980-10-21 | 1982-04-30 | Toshiba Corp | Controlling system for air conditioning building |
| KR20050042953A (en) * | 2003-11-04 | 2005-05-11 | 엘지전자 주식회사 | Driving control method for air conditioner equipped with inverter compressor and regular velocity compressor |
-
2012
- 2012-11-28 CN CN201210490428.XA patent/CN102927657B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007010200A (en) * | 2005-06-29 | 2007-01-18 | Hitachi Ltd | Air conditioner and its control method |
| CN101392939A (en) * | 2008-11-18 | 2009-03-25 | 天津大学 | Nonlinear prediction and control method for independence energy supply temperature of buildings |
| CN201351980Y (en) * | 2008-12-30 | 2009-11-25 | 许璟 | Central air conditioner energy-saving control system |
| CN102003748A (en) * | 2009-09-01 | 2011-04-06 | 珠海格力电器股份有限公司 | Modular water chilling unit and intelligent control method thereof |
| CN101691944A (en) * | 2009-10-15 | 2010-04-07 | 山东瑞斯高创股份有限公司 | Electricity-saving control method and electricity-saving control device of air conditioner |
| CN101769583A (en) * | 2009-12-30 | 2010-07-07 | 广东美的电器股份有限公司 | Air conditioner control method with compressor control temperature difference compensation function |
| CN101846361A (en) * | 2010-05-21 | 2010-09-29 | 广东美的电器股份有限公司 | Air conditioner for machine room and control method thereof |
| CN102607138A (en) * | 2012-04-13 | 2012-07-25 | 北京海林节能设备股份有限公司 | Air-conditioning control method and air-conditioning control system for comprehensively-energy-saving building |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102927657A (en) | 2013-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102927657B (en) | Water temperature change control method by air-conditioner temperature change speed method | |
| CN108375175B (en) | air conditioning system control method and device | |
| CN101832618B (en) | Frequency control method and control device of compressor of air conditioner | |
| CN204730411U (en) | Central air conditioning cooling water system energy-saving controller | |
| CN109751741B (en) | Control method and device for air duct type air conditioner and air duct type air conditioner | |
| CN102410680B (en) | Method for controlling thermal load response of water chilling unit | |
| CN103277571A (en) | Dynamic return water temperature flow regulating valve | |
| CN102865643B (en) | Control method of air conditioner | |
| CN104676837A (en) | Variable-frequency energy-saving method applied to whole-process temperature difference control of central air conditioner freeze water system | |
| CN103759388A (en) | Buffer temperature regulating method of air-conditioner | |
| CN104296306A (en) | Method and device for controlling air conditioner | |
| CN103047740A (en) | Method for reducing water flow of air conditioning system and dynamic temperature difference flow regulating valve | |
| CN105042808A (en) | Air-conditioner and heating control method and device thereof | |
| CN105674489A (en) | Optimal control method and system of central air conditioner water pump | |
| CN204902127U (en) | Terminal coordinated control's of air conditioner water system and air conditioner economizer | |
| CN107560255B (en) | Heat pump unit and control method thereof | |
| CN205102269U (en) | Dew point temperature defrosting type changes in temperature components of a whole that can function independently air conditioner | |
| CN105444327A (en) | Air-conditioning operation control method | |
| CN102980273B (en) | Variable water temperature control method based on valve location method | |
| CN104197480A (en) | Follow-up type air conditioner ventilation control system and running method thereof | |
| CN203464410U (en) | Energy-saving device for controlling heating and cooling of central air conditioner | |
| CN203364339U (en) | Four-tube fan coil system | |
| CN202902549U (en) | Temperature-variable speed type water temperature control device | |
| CN106679068B (en) | The chilled water supply water temperature setting method and system of central air conditioner system refrigeration host computer | |
| JP2017003205A (en) | Energy-saving cooling method for air-conditioner and cooling control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |