CN104676993B - A kind of standby antifreeze control method - Google Patents
A kind of standby antifreeze control method Download PDFInfo
- Publication number
- CN104676993B CN104676993B CN201510081148.7A CN201510081148A CN104676993B CN 104676993 B CN104676993 B CN 104676993B CN 201510081148 A CN201510081148 A CN 201510081148A CN 104676993 B CN104676993 B CN 104676993B
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- Prior art keywords
- antifreeze
- air
- standby
- control method
- water
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/005—Arrangement or mounting of control or safety devices of safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The invention discloses a kind of standby antifreeze control method, include following steps：A, when environment temperature is less than 20 DEG C, under hot-water mode, open in unit air-conditioning side water circulating pump for a period of time every cycle time T and detect return water temperature；If B, return water temperature is less than minimum temperature setting value, water circulating pump is continued on until reaching and exits antifreeze condition；If still not up to exiting antifreeze condition when C, the opening time of air-conditioning side water circulating pump is more than time threshold, unit closes hot-water mode and switchs to heating mode, and antifreeze condition is exited until return water temperature reaches.The inventive method is only antifreeze to control unit to carry out with the working time by detecting return water temperature under conditions of peripheral hardware is not increased, and not only effectively prevent water-side heat because the standby energy-efficient operation for bursting by freezing occur, while also ensure that unit.The present invention can be widely applied to art of heat pumps as a kind of standby antifreeze control method.
Description
Technical field
The present invention relates to art of heat pumps, especially a kind of standby antifreeze control method.
Background technology
Air-source trilogy supply unit is provided simultaneously with freezing, heated, three kinds of functions of supplying hot water, can under refrigeration+hot-water mode
Whole recovery of condensation waste heat are realized, energy-saving effect is obvious, comprehensive energy efficiency ratio up to 7.5, and fit module machine synthesis uses, and is applicable
Not only need to freeze, heat but also need the place of domestic hot-water in hotel, hospital, university, club etc., not only saved initial cost but also reduced
Operating cost.Air-source trilogy supply unit is developed on the basis of original module machine, has not only continued original mould
The technical characterstic of block machine, even more on the basis of original, it have developed new function.
At present, develop along with the multipurposeization of building, functional requirement to central air-conditioning is also increasingly wider, from traditional
Air conditioner refrigerating heating requires to current hot-water integration.Air-source trilogy supply module is namely based under such background and developed
Come, the comprehensive of trilogy supply module+general module uses the air-conditioning solved in building and swimming pool constant temperature requirement；But conventional
For air-source trilogy supply unit when operating under winter heating's aqueous mode, air-conditioning side water-side heat is in idle state,
After circumstance temperature step-down, water-side heat can be because have water the phenomenon of bursting by freezing occur in connecting line.
The content of the invention
In order to solve the above-mentioned technical problem, the purpose of the present invention is：One kind is provided and utilizes air-source trilogy supply self structure
Unit durability can effectively be extended, ensure the standby antifreeze control method of set steady Effec-tive Function.
The technical solution adopted in the present invention is：A kind of standby antifreeze control method, includes following steps：
A, when environment temperature is less than 20 DEG C, under hot-water mode, open air-conditioning side in unit every cycle time T and circulate
Water pump simultaneously continues for some time, and then detects return water temperature；
If B, return water temperature is less than minimum temperature setting value, the air-conditioning side water circulating pump in unit is continued on, until
Return water temperature, which reaches, exits antifreeze condition；
If still not up to exiting antifreeze condition when C, the opening time of air-conditioning side water circulating pump is more than time threshold in unit,
Then unit closes hot-water mode and switchs to heating mode, and antifreeze condition is exited until return water temperature reaches.
Further, the concrete operations of unit closing hot-water mode are in the step C：Close circulating-water valve and heat-exchanger pump.
Further, the cycle time T is 30 minutes.
Further, the duration that air-conditioning side water circulating pump in unit is opened in the step A is 3 minutes.
Further, the minimum temperature setting value is 15 DEG C.
Further, it is described exit antifreeze condition for return water temperature it is bigger than minimum setting value more than 4 DEG C.
Further, the time threshold in the step C is 30 minutes.
The beneficial effects of the invention are as follows：The inventive method is using original sensor in air-source trilogy supply unit, not
Under conditions of increasing external detection equipment, only following for water-side heat is opened with the working time to control by detecting return water temperature
The heating mode of ring water pump or unlatching unit is antifreeze to carry out, and not only effectively prevent water-side heat because standby do not work
There is bursting by freezing, while also ensure that the energy-efficient operation of unit.
Brief description of the drawings
Fig. 1 is the step flow chart of the inventive method.
Embodiment
The embodiment of the present invention is described further below in conjunction with the accompanying drawings：
A kind of reference picture 1, standby antifreeze control method, includes following steps：
A, when environment temperature is less than 20 DEG C, under hot-water mode, open air-conditioning side in unit every cycle time T and circulate
Water pump simultaneously continues for some time, and then detects return water temperature；
When environment temperature is more than or equal to 20 DEG C, without standby antifreeze function under hot-water mode.
If B, return water temperature is less than minimum temperature setting value, the air-conditioning side water circulating pump in unit is continued on, until
Return water temperature, which reaches, exits antifreeze condition；
If return water temperature is too low, its water-side heat as there is water the phenomenon of bursting by freezing occur in connecting line,
Therefore need to continue on air-conditioning side water circulating pump.
If still not up to exiting antifreeze condition when C, the opening time of air-conditioning side water circulating pump is more than time threshold in unit,
Then unit closes hot-water mode and switchs to heating mode, and antifreeze condition is exited until return water temperature reaches.
It is further used as preferred embodiment, the concrete operations that unit closes hot-water mode in the step C are：Close
Circulating-water valve and heat-exchanger pump.
Preferred embodiment is further used as, the cycle time T is 30 minutes.
Be further used as preferred embodiment, opened in the step A air-conditioning side water circulating pump in unit it is lasting when
Between be 3 minutes.
Preferred embodiment is further used as, the minimum temperature setting value is 15 DEG C.
It is further used as preferred embodiment, described to exit antifreeze condition bigger than minimum setting value 4 DEG C for return water temperature
More than.
It is further used as preferred embodiment, the time threshold in the step C is 30 minutes.
Above is the preferable implementation to the present invention is illustrated, but the invention is not limited to the implementation
Example, those skilled in the art can also make a variety of equivalents on the premise of without prejudice to spirit of the invention or replace
Change, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (6)
- A kind of 1. standby antifreeze control method of air-source trilogy supply source pump, it is characterised in that：Include following steps：A, when environment temperature is less than 20 DEG C, under hot-water mode, air-conditioning side water circulating pump in unit is opened every cycle time T And continue for some time, then detect return water temperature；If B, return water temperature is less than minimum temperature setting value, the air-conditioning side water circulating pump in unit is continued on, until backwater Temperature, which reaches, exits antifreeze condition；Still not up to exit antifreeze condition, machine when C, if the opening time of air-conditioning side water circulating pump is more than time threshold in unit Group closes hot-water mode and switchs to heating mode, and antifreeze condition is exited until return water temperature reaches；Close the specific of hot-water mode Operate and be：Close circulating-water valve and heat-exchanger pump.
- A kind of 2. standby antifreeze control method of air-source trilogy supply source pump according to claim 1, it is characterised in that： The cycle time T is 30 minutes.
- A kind of 3. standby antifreeze control method of air-source trilogy supply source pump according to claim 1, it is characterised in that： The duration that air-conditioning side water circulating pump in unit is opened in the step A is 3 minutes.
- A kind of 4. standby antifreeze control method of air-source trilogy supply source pump according to claim 1, it is characterised in that： The minimum temperature setting value is 15 DEG C.
- A kind of 5. standby antifreeze control method of air-source trilogy supply source pump according to claim 1, it is characterised in that： It is described exit antifreeze condition for return water temperature it is bigger than minimum setting value more than 4 DEG C.
- A kind of 6. standby antifreeze control method of air-source trilogy supply source pump according to claim 1, it is characterised in that： Time threshold in the step C is 30 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510081148.7A CN104676993B (en) | 2015-02-13 | 2015-02-13 | A kind of standby antifreeze control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510081148.7A CN104676993B (en) | 2015-02-13 | 2015-02-13 | A kind of standby antifreeze control method |
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| Publication Number | Publication Date |
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| CN104676993A CN104676993A (en) | 2015-06-03 |
| CN104676993B true CN104676993B (en) | 2017-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510081148.7A Active CN104676993B (en) | 2015-02-13 | 2015-02-13 | A kind of standby antifreeze control method |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180539B (en) * | 2015-09-08 | 2018-06-29 | 广东芬尼克兹节能设备有限公司 | A kind of heat pump unit antifreeze control method and system |
| US10276572B2 (en) * | 2015-11-05 | 2019-04-30 | Taiwan Semiconductor Manufacturing Co., Ltd. | Semiconductor device and manufacturing method thereof |
| CN106440583A (en) * | 2016-11-14 | 2017-02-22 | 广东美的暖通设备有限公司 | Hot water heater of air conditioning heat pump and antifreezing control method therefor |
| CN106765889A (en) * | 2016-11-29 | 2017-05-31 | 重庆美的通用制冷设备有限公司 | Air-conditioning and its pipeline antifreeze control method and device |
| CN106766219B (en) * | 2016-12-14 | 2019-09-20 | 珠海格力电器股份有限公司 | Heat pump water dispenser antifreeze control method, apparatus and system |
| CN109269166B (en) * | 2017-07-18 | 2020-10-02 | 同方人工环境有限公司 | Control method for preventing freezing of heat pump system during shutdown in winter |
| CN107461925B (en) * | 2017-08-14 | 2019-10-29 | 宁波奥克斯电气股份有限公司 | A kind of heat pump machine and antifreeze control method |
| CN107940665B (en) * | 2017-11-10 | 2020-06-02 | 广东志高暖通设备股份有限公司 | Intelligent control method for temperature control and heating of air conditioner |
| CN108317687A (en) * | 2018-02-05 | 2018-07-24 | 珠海格力电器股份有限公司 | Anti-freezing energy-saving control method, device and air-conditioner set |
| CN109405308B (en) * | 2018-10-29 | 2020-08-07 | 珠海格力电器股份有限公司 | Heat pump water system, anti-freezing control method and device thereof and storage medium |
| CN110131933B (en) * | 2019-04-15 | 2021-04-20 | 广东芬尼能源技术有限公司 | Standby anti-freezing control method and device suitable for heat pump unit |
| CN110094849A (en) * | 2019-05-27 | 2019-08-06 | 珠海格力电器股份有限公司 | Air-conditioning heat pump water system and its antifreeze control method, device and equipment |
| CN110220269B (en) * | 2019-05-31 | 2021-03-30 | 宁波奥克斯电气股份有限公司 | Anti-freezing control method and system for fan coil and air conditioner |
| CN110986283B (en) * | 2019-11-26 | 2021-06-18 | 珠海格力电器股份有限公司 | Water multi-connected system heating anti-freezing mode control method, computer readable storage medium and air conditioner |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100540808B1 (en) * | 2003-10-17 | 2006-01-10 | 엘지전자 주식회사 | Control method for Superheating of heat pump system |
| KR101270615B1 (en) * | 2006-07-25 | 2013-06-07 | 엘지전자 주식회사 | Co-generation and Control method of the same |
| KR20090067736A (en) * | 2007-12-21 | 2009-06-25 | 엘지전자 주식회사 | Control method of heat-pump type air-conditioner |
| KR20090069990A (en) * | 2007-12-26 | 2009-07-01 | 주식회사 대우일렉트로닉스 | Method for controlling defrosting operation of air conditioner |
| CN201740325U (en) * | 2010-08-20 | 2011-02-09 | 三河市同飞制冷设备有限公司 | Industrial chiller with anti-freezing function for refrigerating in winter |
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