CN110094908A - Air source heat pump exits the control method of defrost - Google Patents
Air source heat pump exits the control method of defrost Download PDFInfo
- Publication number
- CN110094908A CN110094908A CN201910435133.4A CN201910435133A CN110094908A CN 110094908 A CN110094908 A CN 110094908A CN 201910435133 A CN201910435133 A CN 201910435133A CN 110094908 A CN110094908 A CN 110094908A
- Authority
- CN
- China
- Prior art keywords
- air source
- heat pump
- control method
- defrost
- source heat
- 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.)
- Pending
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Classifications
-
- 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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
A kind of air source heat pump provided by the invention exits the control method of defrost, the air source heat pump includes: compressor, outdoor heat exchanger and the blower for acting on the outdoor heat exchanger, the control method includes: to obtain the temperature of the outdoor heat exchanger during defrost；Judge whether the temperature reaches preset temperature；When the temperature of the outdoor heat exchanger reaches preset temperature, stop the compressor；The blower is opened, judges whether the runing time of the blower reaches the first preset time；When the runing time of the blower reaches the first preset time, start the compressor, the air source heat pump is made to restore to work normally.After the completion of the defrost on outdoor heat exchanger surface, because having moisture on the complete white heat exchanger of rigidifying, blower is opened at once when compressor stops, dry with blower wind, follow-up operation will not freeze.
Description
Technical field
The present invention relates to technical field of heat pumps, and in particular to a kind of air source heat pump exits the control method of defrost.
Background technique
Air source heat pump is a kind of energy saver for making heat flow to from low level heat energy air high-order heat source using high potential.
It is a kind of form of heat pump.As its name suggests, heat pump, can be the Lowlevel thermal energy that cannot directly utilize namely as pump
(heat as contained in air, soil, water) is converted to utilizable high level heat, saves part high potential to reach
The purpose of (such as coal, combustion gas, oil, electric energy).
Air source heat pump is when running in winter, due to containing the meeting frosting of moisture heat exchanger in the gas of temperature low latitude, in order to exchange heat
Device can preferably exchange heat so heat exchanging device carries out defrost.But existing air source heat pump exchanges heat when exiting defrost step
There are still condensates remaining after defrost on device surface, when working on can again frosting to being again introduced into defrost link, cause be
Working efficiency of uniting is lower.
Summary of the invention
Therefore, in order to overcome, condensate remains in heat exchanger surface to air source heat pump after defrost in winter in the prior art, weight
When new work again frosting the problem of, to provide a kind of by reasonably controlling, prevent condensate from tying after defrost again
The air source heat pump of frost exits the control method of defrost.
Design scheme of the invention is as follows:
A kind of air source heat pump exits the control method of defrost, and the air source heat pump includes: compressor, outdoor heat exchange
Device and the blower for acting on the outdoor heat exchanger, the control method include: to obtain the room during defrost
The temperature of external heat exchanger；Judge whether the temperature reaches preset temperature；When the temperature of the outdoor heat exchanger reaches default temperature
When spending, stop the compressor；The blower is opened, judges whether the runing time of the blower reaches the first preset time；
When the runing time of the blower reaches the first preset time, start the compressor, restores the air source heat pump just
Often work.
Preferably, the air source heat pump further includes four-way valve, when the runing time of the blower reach first it is default when
Between when, the control method further include: close the four-way valve.
Preferably, the air source heat pump further includes restricting element, after closing the four-way valve, the control method
Include: to judge whether the restricting element fully opens, if having fully opened, after the second preset time, executes starting
The step of compressor；If the restricting element does not fully open, control the restricting element and be opened into maximum, waits the
It is returned after three preset times and described the step of whether restricting element fully opens is judged.
Preferably, first preset time is 30s-50s.
Preferably, second preset time is 10s-30s.
Preferably, the preset temperature is 5 DEG C -20 DEG C.
Technical solution of the present invention has the advantages that
1, a kind of air source heat pump provided by the invention exits the control method of defrost, and the air source heat pump includes: pressure
Contracting machine, outdoor heat exchanger and the blower for acting on the outdoor heat exchanger, the control method include: in defrost process
In, obtain the temperature of the outdoor heat exchanger；Judge whether the temperature reaches preset temperature；When the temperature of the outdoor heat exchanger
When degree reaches preset temperature, stop the compressor；The blower is opened, judges whether the runing time of the blower reaches
One preset time；When the runing time of the blower reaches the first preset time, start the compressor, makes the air-source
Heat pump restores to work normally.After the completion of the defrost on outdoor heat exchanger surface, because having moisture on the complete white heat exchanger of rigidifying,
Open blower at once when compressor stops, dry with blower wind, follow-up operation will not freeze.Overcome air-source in the prior art
Condensate remains in heat exchanger surface to heat pump after defrost in winter, when reworking again frosting the problem of.
2, a kind of air source heat pump provided by the invention exits the control method of defrost, when the runing time of the blower reaches
When to the first preset time, the control method further include: close the four-way valve.The mutation of high-low pressure when exiting defrost
It is very big to the impact of all parts of system, close the refrigerant natural balanced pressure that four-way valve can allow in system, systems stabilisation,
Subsequent booting refrigerant does not migrate.
3, a kind of air source heat pump provided by the invention exits the control method of defrost, and the air source heat pump further includes section
Fluid element, after closing the four-way valve, the control method include: judge whether the restricting element fully opens, if
It has been fully opened that, then after the second preset time, execute the step of starting the compressor；If the restricting element is not complete
It opens, then controls the restricting element and be opened into maximum, return to the judgement restricting element after waiting third preset time
The step of whether fully opening.To guarantee that restricting element is in and fully opens shape when air source heat pump restores to work normally
State avoids impact of high pressure when starting to system.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the flow diagram that the air source heat pump of the embodiment of the present invention exits the control method of defrost；
Fig. 2 is the flow diagram that the air source heat pump of another embodiment of the present invention exits the control method of defrost.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 1 shows the control method that a kind of air source heat pump provided by the invention exits defrost, the air source heat pump
It include: compressor, outdoor heat exchanger, four-way valve, restricting element and the blower for acting on the outdoor heat exchanger, it is described
Control method includes: to obtain the temperature of the outdoor heat exchanger during defrost；Judge whether the temperature reaches default temperature
Degree；When the temperature of the outdoor heat exchanger reaches preset temperature, stop the compressor；The blower is opened, described in judgement
Whether the runing time of blower reaches 40s, restores air source heat pump after reaching and works normally.When the defrost on outdoor heat exchanger surface
After the completion, because having moisture on the complete white heat exchanger of rigidifying, blower is opened at once when compressor stops, with blower wind
Dry, follow-up operation will not freeze.Overcome in the prior art that condensate remains in heat exchanger surface to air source heat pump after defrost in winter,
When reworking again frosting the problem of.
As another embodiment, as shown in Fig. 2, when the runing time of the blower reaches 40s, described four are closed
Port valve.When exiting defrost, the mutation of high-low pressure is very big to all parts impact of system, and closing four-way valve can allow in system
Refrigerant natural balanced pressure, systems stabilisation, subsequent booting refrigerant do not migrate.Judge whether the restricting element is opened completely
It opens, if having fully opened, after 20s, executes the step of starting the compressor；If the restricting element is not opened completely
It opens, then controls the restricting element and be opened into maximum, and restricting element is waited to open, return to the judgement throttling member later
The step of whether part fully opens.To guarantee that restricting element is in and fully opens when air source heat pump restores to work normally
State avoids impact of high pressure when starting to system.Start the compressor later, the air source heat pump is made to restore normal
Work.
It should be pointed out that the temperature and time in the present embodiment is preferable example, the present invention includes but is not limited to use
Above-mentioned temperature and time parameter.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (6)
1. a kind of air source heat pump exits the control method of defrost, the air source heat pump include: compressor, outdoor heat exchanger,
And act on the blower of the outdoor heat exchanger, which is characterized in that the control method includes:
During defrost, the temperature of the outdoor heat exchanger is obtained；
Judge whether the temperature reaches preset temperature；
When the temperature of the outdoor heat exchanger reaches preset temperature, stop the compressor；
The blower is opened, judges whether the runing time of the blower reaches the first preset time；
When the runing time of the blower reaches the first preset time, start the compressor, keeps the air source heat pump extensive
It is multiple to work normally.
2. air source heat pump according to claim 1 exits the control method of defrost, the air source heat pump further includes four
Port valve, which is characterized in that when the runing time of the blower reaches the first preset time, the control method further include:
Close the four-way valve.
3. air source heat pump according to claim 2 exits the control method of defrost, the air source heat pump further includes section
Fluid element, which is characterized in that after closing the four-way valve, the control method includes:
Judge whether the restricting element fully opens, if having fully opened, after the second preset time, executes starting institute
The step of stating compressor；
If the restricting element does not fully open, controls the restricting element and be opened into maximum, after waiting third preset time
It returns and described the step of whether restricting element fully opens is judged.
4. the control method that air source heat pump according to claim 1 exits defrost, which is characterized in that described first is default
Time is 30s-50s.
5. the control method that air source heat pump according to claim 3 exits defrost, which is characterized in that described second is default
Time is 10s-30s.
6. the control method that air source heat pump according to claim 1 exits defrost, which is characterized in that the preset temperature
It is 5 DEG C -20 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910435133.4A CN110094908A (en) | 2019-05-23 | 2019-05-23 | Air source heat pump exits the control method of defrost |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910435133.4A CN110094908A (en) | 2019-05-23 | 2019-05-23 | Air source heat pump exits the control method of defrost |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110094908A true CN110094908A (en) | 2019-08-06 |
Family
ID=67448933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910435133.4A Pending CN110094908A (en) | 2019-05-23 | 2019-05-23 | Air source heat pump exits the control method of defrost |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110094908A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975439A (en) * | 2010-11-19 | 2011-02-16 | 四川长虹空调有限公司 | Defrosting operation control method for air conditioner |
| CN106369750A (en) * | 2016-09-08 | 2017-02-01 | 广东美的暖通设备有限公司 | Defrosting control method and defrosting control device of air conditioner and air conditioner |
| WO2018189830A1 (en) * | 2017-04-12 | 2018-10-18 | 三菱電機株式会社 | Refrigeration cycle device |
| CN109059173A (en) * | 2018-07-25 | 2018-12-21 | 广东美的制冷设备有限公司 | Air conditioner and its defrosting control method, computer readable storage medium |
-
2019
- 2019-05-23 CN CN201910435133.4A patent/CN110094908A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975439A (en) * | 2010-11-19 | 2011-02-16 | 四川长虹空调有限公司 | Defrosting operation control method for air conditioner |
| CN106369750A (en) * | 2016-09-08 | 2017-02-01 | 广东美的暖通设备有限公司 | Defrosting control method and defrosting control device of air conditioner and air conditioner |
| WO2018189830A1 (en) * | 2017-04-12 | 2018-10-18 | 三菱電機株式会社 | Refrigeration cycle device |
| CN109059173A (en) * | 2018-07-25 | 2018-12-21 | 广东美的制冷设备有限公司 | Air conditioner and its defrosting control method, computer readable storage medium |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190806 |