CN104406340B - Overlapping type heat pump compressor control method and system - Google Patents
Overlapping type heat pump compressor control method and system Download PDFInfo
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- CN104406340B CN104406340B CN201410592819.1A CN201410592819A CN104406340B CN 104406340 B CN104406340 B CN 104406340B CN 201410592819 A CN201410592819 A CN 201410592819A CN 104406340 B CN104406340 B CN 104406340B
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- low
- pressure system
- compressor
- pressure
- heat pump
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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
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/31—Low ambient temperatures
-
- 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
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
Abstract
The invention discloses an overlapping type heat pump compressor control method and system. According to the overlapping type heat pump compressor control method and system, the inlet water temperature is subjected to judgment processing for a plurality of times through a temperature collection unit, a first judgment unit, a second judgment unit and a third judgment unit, then compressors in a high pressure system and a low pressure system are correspondingly controlled, energy consumption is greatly reduced, a purpose of saving resources is effectively achieved, the heating capacity is effectively improved by the high pressure system and the low pressure system, and stable hot water still can be output under cold environment. The overlapping type heat pump compressor control method and system can be widely applied to the field of heat pump control.
Description
Technical field
The equipment that the present invention relates to controls technical field, particularly relates to compressor control method and the system of a kind of cascade type heat pump.
Background technology
Traditional heat pump water heater system heating capacity at low ambient temperatures can gradually reduce, heating capacity is not enough, and the temperature causing water is not high enough, it is impossible to ensure to stablize comfortable winter heating, this allows for Teat pump boiler and cannot apply at cold district, limits the range of application of Teat pump boiler.And present Teat pump boiler is in the state of long-term startup, consumes energy more, efficiency is on the low side simultaneously.
Summary of the invention
In order to solve above-mentioned technical problem, it is an object of the invention to provide one and can save the energy, and compressor control method and the system of a kind of cascade type heat pump of heating capacity can be effectively improved.
The technical solution adopted in the present invention is:
The compressor control method of a kind of cascade type heat pump, comprises the following steps:
A, inflow temperature is acquired；
B, judge that inflow temperature whether less than or equal to 37 DEG C, is the most then opened the low pressure compressor in low-pressure system and the low pressure compressor in high-pressure system, and performed step C after default time interval；Otherwise, then step C is performed；
C, judge that inflow temperature whether more than or equal to design temperature, is the most then closed all compressors, kept current temperature constant state；Otherwise, then step D is performed；
D, judge that the compressor in high-pressure system and low-pressure system whether less than or equal to the temperature value of low 4 DEG C than design temperature, is the most then switched on by inflow temperature；Otherwise, then close the low pressure compressor in low-pressure system and the low pressure compressor in high-pressure system, open the high pressure compressor in low-pressure system and the high pressure compressor in high-pressure system.
As the further improvement of the compressor control method of described a kind of cascade type heat pump, all compressors of closedown in described step C, current temperature constant state is kept also to include:
C1, judge that inflow temperature whether less than or equal to 33 DEG C, is the most then opened the low pressure compressor in low-pressure system and the low pressure compressor in high-pressure system, and performed step C after default time interval；
C2, judge that inflow temperature whether more than or equal to 37 DEG C, the most then returns and performs step C.
As the further improvement of the compressor control method of described a kind of cascade type heat pump, the compressor in described high-pressure system and low-pressure system is all spaced the default time and is turned on and off one by one when being turned on and off.
Of the present invention another solution is that
A kind of compressor control system of cascade type heat pump, including:
Temperature collecting cell, for being acquired inflow temperature；
First judging unit, is used for judging that inflow temperature whether less than or equal to 37 DEG C, is the most then opened the low pressure compressor in low-pressure system and the low pressure compressor in high-pressure system, and performed the second judging unit after default time interval；Otherwise, then the second judging unit is performed；
Second judging unit, is used for judging that inflow temperature whether more than or equal to design temperature, is the most then closed all compressors, kept current temperature constant state；Otherwise, then the 3rd judging unit is performed；
3rd judging unit, for judging that the compressor in high-pressure system and low-pressure system whether less than or equal to the temperature value of low 4 DEG C than design temperature, is the most then switched on by inflow temperature；Otherwise, then close the low pressure compressor in low-pressure system and the low pressure compressor in high-pressure system, open the high pressure compressor in low-pressure system and the high pressure compressor in high-pressure system.
As the further improvement of the compressor control system of described a kind of cascade type heat pump, all compressors of closedown in described second judging unit, current temperature constant state is kept also to include:
Temperature constant state the first judging unit, is used for judging that inflow temperature whether less than or equal to 33 DEG C, is the most then opened the low pressure compressor in low-pressure system and the low pressure compressor in high-pressure system, and performed the second judging unit after default time interval；
Temperature constant state the second judging unit, is used for judging that inflow temperature whether more than or equal to 37 DEG C, the most then returns and performs the second judging unit.
The invention has the beneficial effects as follows:
The compressor control method of a kind of cascade type heat pump of the present invention and system process by inflow temperature carries out repeatedly judgement, thus the compressor in high-pressure system and low-pressure system is controlled accordingly, greatly reduce energy consumption, effectively realize saving the purpose of the energy, and heating capacity can be effectively improved by the dual system of high-pressure system and low-pressure system, it is ensured that in the environment of cold, still can export stable hot water.Further, the problem that the present invention the most effectively solves the high jump pressure that dual system machine set compressor sequencing contro occurs.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described further:
Fig. 1 is the flow chart of steps of the compressor control method of a kind of cascade type heat pump of the present invention；
Fig. 2 is the flow chart of steps in compressor control method step C of a kind of cascade type heat pump of the present invention；
Fig. 3 is the block diagram of the compressor control system of a kind of cascade type heat pump of the present invention.
Detailed description of the invention
With reference to Fig. 1, the compressor control method of a kind of cascade type heat pump of the present invention, comprise the following steps:
A, inflow temperature is acquired；
B, judge that inflow temperature whether less than or equal to 37 DEG C, is the most then opened the low pressure compressor in low-pressure system and the low pressure compressor in high-pressure system, and performed step C after default time interval；Otherwise, then step C is performed；
C, judge that inflow temperature whether more than or equal to design temperature, is the most then closed all compressors, kept current temperature constant state；Otherwise, then step D is performed；
D, judge that the compressor in high-pressure system and low-pressure system whether less than or equal to the temperature value of low 4 DEG C than design temperature, is the most then switched on by inflow temperature；Otherwise, then close the low pressure compressor in low-pressure system and the low pressure compressor in high-pressure system, open the high pressure compressor in low-pressure system and the high pressure compressor in high-pressure system.
With reference to Fig. 2, as the further improvement of the compressor control method of described a kind of cascade type heat pump, all compressors of closedown in described step C, current temperature constant state is kept also to include:
C1, judge that inflow temperature whether less than or equal to 33 DEG C, is the most then opened the low pressure compressor in low-pressure system and the low pressure compressor in high-pressure system, and performed step C after default time interval；
C2, judge that inflow temperature whether more than or equal to 37 DEG C, the most then returns and performs step C.
Further improvement as the compressor control method of described a kind of cascade type heat pump, compressor in described high-pressure system and low-pressure system is all spaced the default time and is turned on and off one by one when being turned on and off, the problem effectively solving the high jump pressure that dual system machine set compressor sequencing contro occurs.
Reference Fig. 3, the compressor control system of a kind of cascade type heat pump of the present invention, including:
Temperature collecting cell, for being acquired inflow temperature；
First judging unit, is used for judging that inflow temperature whether less than or equal to 37 DEG C, is the most then opened the low pressure compressor in low-pressure system and the low pressure compressor in high-pressure system, and performed the second judging unit after default time interval；Otherwise, then the second judging unit is performed；
Second judging unit, is used for judging that inflow temperature whether more than or equal to design temperature, is the most then closed all compressors, kept current temperature constant state；Otherwise, then the 3rd judging unit is performed；
3rd judging unit, for judging that the compressor in high-pressure system and low-pressure system whether less than or equal to the temperature value of low 4 DEG C than design temperature, is the most then switched on by inflow temperature；Otherwise, then close the low pressure compressor in low-pressure system and the low pressure compressor in high-pressure system, open the high pressure compressor in low-pressure system and the high pressure compressor in high-pressure system.
As the further improvement of the compressor control system of described a kind of cascade type heat pump, all compressors of closedown in described second judging unit, current temperature constant state is kept also to include:
Temperature constant state the first judging unit, is used for judging that inflow temperature whether less than or equal to 33 DEG C, is the most then opened the low pressure compressor in low-pressure system and the low pressure compressor in high-pressure system, and performed the second judging unit after default time interval；
Temperature constant state the second judging unit, is used for judging that inflow temperature whether more than or equal to 37 DEG C, the most then returns and performs the second judging unit.
Wherein, the cascade type heat pump in the present invention is made up of high-pressure system and two systems of low-pressure system, comprises high pressure compressor and two compressors of low pressure compressor in the most each system respectively.
The compressor control method of a kind of cascade type heat pump of the present invention and system process by inflow temperature carries out repeatedly judgement, thus the compressor in high-pressure system and low-pressure system is controlled accordingly, greatly reduce energy consumption, effectively realize saving the purpose of the energy, and heating capacity can be effectively improved by the dual system of high-pressure system and low-pressure system, it is ensured that in the environment of cold, still can export stable hot water.
It is above the preferably enforcement of the present invention is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement on the premise of spirit of the present invention, and deformation or the replacement of these equivalents are all contained in the application claim limited range.
Claims (5)
1. the compressor control method of a cascade type heat pump, it is characterised in that comprise the following steps:
A, inflow temperature is acquired；
B, judge that inflow temperature whether less than or equal to 37 DEG C, is the most then opened the low pressure compressor in low-pressure system and the low pressure compressor in high-pressure system, and performed step C after default time interval；Otherwise, then step C is performed；
C, judge that inflow temperature whether more than or equal to design temperature, is the most then closed all compressors, kept current temperature constant state；Otherwise, then step D is performed；
D, judge the inflow temperature temperature value whether less than or equal to lower than described design temperature 4 DEG C, the most then the compressor in high-pressure system and low-pressure system is switched on；Otherwise, then close the low pressure compressor in low-pressure system and the low pressure compressor in high-pressure system, open the high pressure compressor in low-pressure system and the high pressure compressor in high-pressure system.
The compressor control method of a kind of cascade type heat pump the most according to claim 1, it is characterised in that: all compressors of closedown in described step C, keep current temperature constant state also to include:
C1, judge that inflow temperature whether less than or equal to 33 DEG C, is the most then opened the low pressure compressor in low-pressure system and the low pressure compressor in high-pressure system, and performed step C after default time interval；
C2, judge that inflow temperature whether more than or equal to 37 DEG C, the most then returns and performs step C.
The compressor control method of a kind of cascade type heat pump the most according to claim 1, it is characterised in that: the compressor in described high-pressure system and low-pressure system is all spaced the default time and is turned on and off one by one when being turned on and off.
4. the compressor control system of a cascade type heat pump, it is characterised in that including:
Temperature collecting cell, for being acquired inflow temperature；
First judging unit, is used for judging that inflow temperature whether less than or equal to 37 DEG C, is the most then opened the low pressure compressor in low-pressure system and the low pressure compressor in high-pressure system, and performed the second judging unit after default time interval；Otherwise, then the second judging unit is performed；
Second judging unit, is used for judging that inflow temperature whether more than or equal to design temperature, is the most then closed all compressors, kept current temperature constant state；Otherwise, then the 3rd judging unit is performed；
3rd judging unit, for judging whether inflow temperature is less than or equal to the temperature value of lower than described design temperature 4 DEG C, is the most then switched on the compressor in high-pressure system and low-pressure system；Otherwise, then close the low pressure compressor in low-pressure system and the low pressure compressor in high-pressure system, open the high pressure compressor in low-pressure system and the high pressure compressor in high-pressure system.
The compressor control system of a kind of cascade type heat pump the most according to claim 4, it is characterised in that: all compressors of closedown in described second judging unit, keep current temperature constant state also to include:
Temperature constant state the first judging unit, is used for judging that inflow temperature whether less than or equal to 33 DEG C, is the most then opened the low pressure compressor in low-pressure system and the low pressure compressor in high-pressure system, and performed the second judging unit after default time interval；
Temperature constant state the second judging unit, is used for judging that inflow temperature whether more than or equal to 37 DEG C, the most then returns and performs the second judging unit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410592819.1A CN104406340B (en) | 2014-10-28 | 2014-10-28 | Overlapping type heat pump compressor control method and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410592819.1A CN104406340B (en) | 2014-10-28 | 2014-10-28 | Overlapping type heat pump compressor control method and system |
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| Publication Number | Publication Date |
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| CN104406340A CN104406340A (en) | 2015-03-11 |
| CN104406340B true CN104406340B (en) | 2017-01-11 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108344028A (en) * | 2018-05-14 | 2018-07-31 | 北京中电信联科技发展有限公司 | A kind of manifold type heat pump heat supply method and manifold type heat pump heat distribution system |
| CN112902282A (en) * | 2021-01-28 | 2021-06-04 | 广东芬尼克兹节能设备有限公司 | Cascade type heat pump start-stop control method and device, computer equipment and storage medium |
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| CN101619904A (en) * | 2009-08-02 | 2010-01-06 | 山东美琳达再生能源开发有限公司 | Two-stage heating high temperature heat pump device |
| CN101825374A (en) * | 2010-05-13 | 2010-09-08 | 中原工学院 | Cascade high-temperature heat pump with liquid intermediate-temperature heat source and double low-temperature heat sources |
| CN101910752A (en) * | 2008-01-16 | 2010-12-08 | 大金工业株式会社 | Refrigeration device |
| CN201903165U (en) * | 2010-12-17 | 2011-07-20 | 宁波天海制冷设备有限公司 | Household ultralow-temperature heat pump hot water unit |
| CN104075477A (en) * | 2014-06-18 | 2014-10-01 | 广东芬尼克兹节能设备有限公司 | Cascade high-temperature heat pump |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013113534A (en) * | 2011-11-30 | 2013-06-10 | Samsung Yokohama Research Institute Co Ltd | Heat pump system |
| KR101280442B1 (en) * | 2012-10-22 | 2013-07-01 | 주식회사 엠티에스 | Duality cold cycle heat pump system of control method |
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2014
- 2014-10-28 CN CN201410592819.1A patent/CN104406340B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101910752A (en) * | 2008-01-16 | 2010-12-08 | 大金工业株式会社 | Refrigeration device |
| CN101619904A (en) * | 2009-08-02 | 2010-01-06 | 山东美琳达再生能源开发有限公司 | Two-stage heating high temperature heat pump device |
| CN101825374A (en) * | 2010-05-13 | 2010-09-08 | 中原工学院 | Cascade high-temperature heat pump with liquid intermediate-temperature heat source and double low-temperature heat sources |
| CN201903165U (en) * | 2010-12-17 | 2011-07-20 | 宁波天海制冷设备有限公司 | Household ultralow-temperature heat pump hot water unit |
| CN104075477A (en) * | 2014-06-18 | 2014-10-01 | 广东芬尼克兹节能设备有限公司 | Cascade high-temperature heat pump |
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| CN104406340A (en) | 2015-03-11 |
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