CN113587366A - Air conditioner heating frostless control method and system thereof - Google Patents
Air conditioner heating frostless control method and system thereof Download PDFInfo
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- CN113587366A CN113587366A CN202110924454.8A CN202110924454A CN113587366A CN 113587366 A CN113587366 A CN 113587366A CN 202110924454 A CN202110924454 A CN 202110924454A CN 113587366 A CN113587366 A CN 113587366A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 239000003507 refrigerant Substances 0.000 claims abstract description 4
- 238000005485 electric heating Methods 0.000 claims description 5
- 238000010257 thawing Methods 0.000 description 15
- 238000007791 dehumidification Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000005338 heat storage Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to a heating frostless control method and a heating frostless control system of an air conditioner, and the first aspect of the invention provides a heating frostless control method of the air conditioner, wherein the method comprises the following steps: the outdoor unit receives a heating signal from a user and enters into heating operation; detecting an outdoor ambient temperature T4 and a condensing temperature T3; and judging the anti-frosting requirement according to the detected operation parameters. A second aspect of the present invention provides an air conditioner heating frost-free system, including: a compressor for compressing a driving refrigerant; an outdoor heat exchanger for use as a condenser or an evaporator; temperature detection means for detecting an outdoor ambient temperature T4 and a condensing temperature T3; the fan is used for cooling and radiating the outdoor heat exchanger; and the dehumidifying device is used for adsorbing water vapor contained in the wind blown out by the fan.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a heating frostless control method and a heating frostless control system of an air conditioner.
Background
The defrosting method commonly adopted by the existing air conditioner mainly comprises the following steps: reverse cycle defrosting, heater bypass defrosting, electric heating defrosting, heat storage defrosting and the like. However, the reverse circulation defrosting has the defects of poor indoor comfort, condensate retention, long defrosting time consumption, high energy consumption (the energy consumption of the reverse circulation method is about 5 percent higher than that of a hot gas bypass), insufficient energy sources, uneven defrosting and the like. In addition, the four-way reversing valve has high noise when being switched, certain impact can be caused to pipelines and equipment of the system, and the service life and the reliability of the unit are influenced; the hot gas bypass defrosting method has the defects of long defrosting time and incomplete defrosting; when the frost layer is thick and the density is high, the defrosting time is too long, the indoor comfort is deteriorated, and the compressor is possibly damaged; and the methods of electric heating, heat storage defrosting and the like have the defects of large energy consumption, high cost, large technical difficulty, poor reliability and the like.
Disclosure of Invention
The present invention is directed to a method and system for controlling heating of an air conditioner without frosting, so as to solve the problems mentioned in the background art.
In order to achieve the above object, a first aspect of the present invention provides a heating non-frosting control method for an air conditioner, the method comprising:
the outdoor unit receives a heating signal from a user and enters into heating operation;
detecting an outdoor ambient temperature T4 and a condensing temperature T3;
and judging the anti-frosting requirement according to the detected operation parameters.
Preferably, the step of judging the anti-frosting requirement according to the detected operation parameters specifically comprises:
when the T4 is smaller than the first preset value and the T3 is less than or equal to the second preset value, the MPS system is started;
when T3 is greater than the third preset value, the MPS system is turned off until the turn-on condition is reached;
and when the T4 is less than the fourth preset value, the electric heating is set to operate every 0.5 h.
Preferably, the first preset value is any value between 5 and 9 ℃, and the second preset value is any value between 0 and 3 ℃.
Preferably, the first preset value is 7 ℃ and the second preset value is 1 ℃.
Preferably, the third preset value is any value between 2 and 6 ℃.
Preferably, the third preset value is 4 ℃.
Preferably, the fourth preset value is any value between 0 and 2 ℃.
Preferably, the fourth preset value is 0 ℃.
In another aspect, a heating and frost-free system of an air conditioner is provided, the system including:
a compressor for compressing a driving refrigerant;
an outdoor heat exchanger for use as a condenser or an evaporator;
temperature detection means for detecting an outdoor ambient temperature T4 and a condensing temperature T3;
the fan is used for cooling and radiating the outdoor heat exchanger;
and the dehumidifying device is used for adsorbing water vapor contained in the wind blown out by the fan.
Preferably, an MSP system is arranged in the dehumidifier, and the MSP system can form ultra-low-voltage positive and negative pulse current.
Compared with the prior art, the invention has the beneficial effects that:
the control method and the system can ensure that the outdoor heat exchanger can not frost no matter under any working condition when a refrigerating system operates in a heating mode, so that the stable operation of the machine is ensured due to unchanged heat exchange performance, the air outlet temperature of the indoor side is ensured, the heating requirement of a user is well met, and the heating requirement is not influenced.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a flow chart illustrating an embodiment of a heating and non-frosting control method for an air conditioner according to the present invention;
fig. 2 is a flowchart illustrating an embodiment of a heating frost-free control method for an air conditioner according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, in an embodiment of the present invention, a heating non-frosting control method for an air conditioner includes:
s1, an outdoor unit receives a heating signal from a user and enters into heating operation;
s2, detecting the outdoor environment temperature T4 and the condensing temperature T3;
and S3, judging the anti-frosting requirement according to the detected operation parameters.
Optionally, the user may send the self-heating signal to the air conditioner through a remote controller, an air conditioner APP (Application program) in the mobile terminal, or an operation panel on the body of the air conditioner in a non-contact manner such as a language or a gesture.
The air conditioner frost prevention control method is in a closed state in the cooling mode, the dehumidification mode and the air supply mode, and is only executed in the heating mode.
In an embodiment of the present invention, the step S3 of determining the anti-frosting requirement according to the detected operation parameter specifically includes:
when the T4 is smaller than the first preset value and the T3 is less than or equal to the second preset value, the MPS system is started;
when T3 is greater than the third preset value, the MPS system is turned off until the turn-on condition is reached;
and when the T4 is less than the fourth preset value, the electric heating is set to operate every 0.5 h.
Specifically, the first preset value is any value between 5 and 9 ℃, the second preset value is any value between 0 and 3 ℃, the first preset value is 7 ℃, and the second preset value is 1 ℃.
When T4<7 ℃ is detected and T3 is less than or equal to 1 ℃, the MPS system is started to generate a series of low-voltage pulse currents, a magnetic field is formed between a titanium metal wire mesh on the surface of the structure and a material on the back of the structure, water molecules in the structure are ionized, the ionized water molecules are forced to be discharged towards the negative electrode permanently, the water molecules are converged into water drops because the negative electrode material is a hydrophilic material, and when the MPS system runs, the surface of the negative electrode material at-20 ℃ is 11.8 ℃, so that the converged water drops flow out under the action of gravity, and the dehumidifying device is ensured to have continuous dehumidifying capacity;
specifically, the third preset value is any value between 2 and 6 ℃, and the third preset value is 4 ℃.
Specifically, the fourth preset value is any value between 0 and 2 ℃, and the fourth preset value is 0 ℃.
In another aspect, the present invention provides a heating and frost-free system for an air conditioner, the system including:
a compressor for compressing a driving refrigerant;
an outdoor heat exchanger for use as a condenser or an evaporator;
temperature detection means for detecting an outdoor ambient temperature T4 and a condensing temperature T3;
the fan is used for cooling and radiating the outdoor heat exchanger;
and the dehumidifying device is used for adsorbing water vapor contained in the wind blown out by the fan.
In an embodiment, an MSP system is provided in the dehumidifier, and the MSP system can form ultra-low voltage positive and negative pulse current.
Optionally, the interior of the dehumidification device is made of a porous structure and a water-absorbing material, the dehumidification device can absorb water vapor in wind blown out by the fan into the dehumidification device, the moisture content of the processed air is about 0, and the heat exchanger does not frost after heat exchange by the outdoor heat exchanger.
The invention fundamentally solves the difficult problem that the air conditioner needs defrosting when heating, defrosting is not needed when the air conditioner does not frost, and the moisture removal device adsorbs and discharges the vapor contained in the air blown by the fan, so that the air conditioner can not frost when continuously operating in a heating mode, the outdoor heat exchanger can not frost no matter what working condition the refrigerating system is, the outside heat exchange performance is not changed, thereby ensuring the stable operation of the machine, ensuring the air outlet temperature of the indoor side, well meeting the heating requirement of users and not being influenced.
It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made therein without departing from the scope of the invention as defined in the appended claims and their equivalents, and it is intended that the invention encompass such changes and modifications as well.
Claims (10)
1. A heating non-frosting control method of an air conditioner is characterized by comprising the following steps:
the outdoor unit receives a heating signal from a user and enters into heating operation;
detecting an outdoor ambient temperature T4 and a condensing temperature T3;
and judging the anti-frosting requirement according to the detected operation parameters.
2. The air conditioner heating frost-prevention control method according to claim 2, wherein the step of judging the frost-prevention requirement according to the detected operation parameter specifically comprises:
when the T4 is smaller than the first preset value and the T3 is less than or equal to the second preset value, the MPS system is started;
when T3 is greater than the third preset value, the MPS system is turned off until the turn-on condition is reached;
and when the T4 is less than the fourth preset value, the electric heating is set to operate every 0.5 h.
3. The heating frost-free control method of the air conditioner as claimed in claim 2, wherein the first predetermined value is any value between 5 ℃ and 9 ℃, and the second predetermined value is any value between 0 ℃ and 3 ℃.
4. The heating frost-free control method of claim 3, wherein the first predetermined value is 7 ℃ and the second predetermined value is 1 ℃.
5. The heating frost-free control method of the air conditioner as claimed in claim 2, wherein the third predetermined value is any value between 2-6 ℃.
6. The heating frost-free control method of claim 5, wherein the third predetermined value is 4 ℃.
7. The heating frost-free control method of the air conditioner as claimed in claim 2, wherein the fourth predetermined value is any value between 0-2 ℃.
8. The heating frost-free control method of claim 7, wherein the fourth predetermined value is 0 ℃.
9. An air conditioner heating frost-free system, comprising:
a compressor for compressing a driving refrigerant;
an outdoor heat exchanger for use as a condenser or an evaporator;
temperature detection means for detecting an outdoor ambient temperature T4 and a condensing temperature T3;
the fan is used for cooling and radiating the outdoor heat exchanger;
and the dehumidifying device is used for adsorbing water vapor contained in the wind blown out by the fan.
10. The heating and frost-free system of claim 2, wherein the dehumidifier has an MSP system, and the MSP system can generate ultra-low voltage positive and negative pulse current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110924454.8A CN113587366A (en) | 2021-08-12 | 2021-08-12 | Air conditioner heating frostless control method and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110924454.8A CN113587366A (en) | 2021-08-12 | 2021-08-12 | Air conditioner heating frostless control method and system thereof |
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| CN113587366A true CN113587366A (en) | 2021-11-02 |
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| CN202110924454.8A Pending CN113587366A (en) | 2021-08-12 | 2021-08-12 | Air conditioner heating frostless control method and system thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010060162A (en) * | 2008-09-01 | 2010-03-18 | Daikin Ind Ltd | Defrosting method in refrigerating device, and refrigerating device |
| CN106196422A (en) * | 2016-06-28 | 2016-12-07 | 青岛海尔空调器有限总公司 | The frostless control method of liquid desiccant air conditioning |
| CN106524389A (en) * | 2015-09-15 | 2017-03-22 | 上海日立电器有限公司 | Air conditioner defrosting method and air conditioner thereof |
| CN108775632A (en) * | 2018-05-28 | 2018-11-09 | 华中科技大学 | A kind of air-conditioner outdoor unit to be cooled down using electroosmotic effect and press down frost |
| CN109084443A (en) * | 2018-07-26 | 2018-12-25 | 四川长虹空调有限公司 | A kind of condenser for outdoor unit of air conditioner frosting suppressing method and air-conditioning |
| CN109539501A (en) * | 2018-11-16 | 2019-03-29 | 珠海格力电器股份有限公司 | Air conditioner control method and device, storage medium and air conditioner |
| CN111089349A (en) * | 2019-12-17 | 2020-05-01 | 珠海格力电器股份有限公司 | Air conditioner outdoor unit, defrosting method thereof and air conditioner |
-
2021
- 2021-08-12 CN CN202110924454.8A patent/CN113587366A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010060162A (en) * | 2008-09-01 | 2010-03-18 | Daikin Ind Ltd | Defrosting method in refrigerating device, and refrigerating device |
| CN106524389A (en) * | 2015-09-15 | 2017-03-22 | 上海日立电器有限公司 | Air conditioner defrosting method and air conditioner thereof |
| CN106196422A (en) * | 2016-06-28 | 2016-12-07 | 青岛海尔空调器有限总公司 | The frostless control method of liquid desiccant air conditioning |
| CN108775632A (en) * | 2018-05-28 | 2018-11-09 | 华中科技大学 | A kind of air-conditioner outdoor unit to be cooled down using electroosmotic effect and press down frost |
| CN109084443A (en) * | 2018-07-26 | 2018-12-25 | 四川长虹空调有限公司 | A kind of condenser for outdoor unit of air conditioner frosting suppressing method and air-conditioning |
| CN109539501A (en) * | 2018-11-16 | 2019-03-29 | 珠海格力电器股份有限公司 | Air conditioner control method and device, storage medium and air conditioner |
| CN111089349A (en) * | 2019-12-17 | 2020-05-01 | 珠海格力电器股份有限公司 | Air conditioner outdoor unit, defrosting method thereof and air conditioner |
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