CN113375267B - Air conditioner cleaning method - Google Patents
Air conditioner cleaning method Download PDFInfo
- Publication number
- CN113375267B CN113375267B CN202110558306.9A CN202110558306A CN113375267B CN 113375267 B CN113375267 B CN 113375267B CN 202110558306 A CN202110558306 A CN 202110558306A CN 113375267 B CN113375267 B CN 113375267B
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- compressor
- air conditioner
- heat exchanger
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- temperature
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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
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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
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/62—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
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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
- F24F11/62—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
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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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
- F24F11/80—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
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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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/873—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling refrigerant heaters
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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
- F24F11/88—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
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- 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]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses an air conditioner cleaning method, which preferentially adopts an electric heating mode to carry out high-temperature sterilization on an indoor heat exchanger of an air conditioner, and starts an indoor fan system and a system compressor system of the air conditioner to enter a heating mode in real time according to the sterilization target temperature, so that the temperature of the indoor heat exchanger is kept in the optimal sterilization temperature range by adjusting the rotating speed of indoor extension sets of the air conditioner system and the related parameters of the frequency of the compressor, and the working reliability of the air conditioner can be improved while the sterilization efficiency is improved.
Description
Technical Field
The invention relates to the field of domestic electric appliances, in particular to the technical field of air conditioners, and particularly relates to an air conditioner cleaning method.
Technical Field
With the improvement of health consciousness of people, the health demand of people on air conditioners is higher and higher. However, in the long-term use of the air conditioner, more and more bacterial viruses and the like are accumulated on the heat exchanger of the indoor unit, most of the bacterial viruses are not high-temperature resistant, for example, new coronavirus which is abused worldwide in 2020, and according to related scientific data, the new coronavirus can be killed in an environment of 56 ℃ for 30 minutes. Therefore, the air conditioner can be cleaned by killing bacteria at a high temperature.
In the prior art, some air conditioners are sterilized by adopting devices such as ultraviolet rays, disinfectant, negative ions and the like, so that the price is much higher than that of a common air conditioner, and the market demand is difficult to meet. Some air conditioners adopt fans and heating systems of the air conditioners for sterilization, but the heating temperature of the air conditioners is limited by system pressure, a heat exchanger is difficult to maintain in a high-temperature state for a long time, and the sterilization is not thorough.
Disclosure of Invention
The present invention is directed to overcome the above-mentioned shortcomings in the prior art, and provides a method for cleaning an air conditioner, in which an electrical heating method is preferably used to perform high-temperature sterilization on a heat exchanger, then a judgment is made according to a sterilization target temperature, an air conditioning system is turned on to enter a heating mode, the temperature of an indoor heat exchanger is kept within an optimal sterilization temperature range by adjusting relevant parameters of the air conditioning system, and the reliability of the air conditioner is also improved.
In order to achieve the technical effects, the technical scheme adopted by the invention comprises the following steps:
s1: sending out a high-temperature sterilization and cleaning instruction of the air conditioner;
s2: the air conditioner receives an instruction, the swing blade of the indoor unit is opened by an angle A, an electric heating device positioned below the indoor heat exchanger is started, and the surface of the indoor heat exchanger is heated by utilizing natural convection;
s3: obtaining the temperature Td of the electric heating temperature controller and the surface temperature Tc of the heat exchanger of the indoor unit;
s4, when Td is larger than a threshold value B, the indoor fan is started to run reversely, the rotating speed is set to be C, and air flows through the electric heating device reversely (the electric heating dry burning is avoided being invalid);
s5, when the surface temperature Tc of the heat exchanger of the indoor unit is smaller than a threshold value D, starting the compressor of the air conditioning system and entering a heating mode;
s6: controlling the frequency F of the compressor to keep the surface temperature Tc of the heat exchanger of the indoor unit equal to or less than Tc and less than F;
and S7, when Tc is more than or equal to D and lasts J minutes, closing the electric heating device, the indoor fan and the compressor, closing the swing page of the indoor unit, and ending the cleaning process.
According to an embodiment of the present invention, the swing blade angle a in step S2 ranges from 1 to 90 degrees.
According to an embodiment of the present invention, the value range of the threshold B in step S4 is 85-105 ℃.
According to an embodiment of the present invention, in step S4, the fan rotation speed C is associated with Td, where C = a × Td, and a is a rotation speed coefficient, and is in a range of 5-20.
According to an embodiment of the present invention, the initial frequency f1=20+ (30-Tor) at the start of the compressor in step S5, Tor is the outdoor ambient temperature.
According to one embodiment of the present invention, the specific method for controlling the compressor frequency in step S6 to maintain the surface temperature Tc of the indoor heat exchanger at D ≦ Tc < F is as follows:
when Tc < D and lasts for G minutes, the compressor frequency f starts to increase by Y per minute;
when D is less than or equal to Tc and less than E, the frequency f of the compressor is kept unchanged;
when Tc is more than or equal to E and lasts for H minutes, the frequency f of the compressor starts to reduce Z per minute;
when Tc is more than or equal to F, the compressor is stopped;
when Tc < D, restarting the compressor and entering a heating mode;
wherein D < E < F.
According to one embodiment of the invention, the threshold D is generally 55-58 ℃, preferably 56 ℃;
according to one embodiment of the invention, the threshold E is generally 59-62 ℃, preferably 62 ℃;
according to one embodiment of the invention, the threshold F is generally 64-66 ℃ and preferably 64 ℃;
according to one embodiment of the invention, G is generally taken for 1 to 5 minutes, preferably for 2 minutes;
according to one embodiment of the invention, H is typically taken for 1-3 minutes, preferably 0.5 minutes;
according to one embodiment of the invention, Y is typically 1-10 Hz, preferably 2 Hz;
according to one embodiment of the invention, Z is typically 1-10 Hz, preferably 3 Hz;
according to one embodiment of the invention, time J is typically between 5 and 60 minutes, preferably 30 minutes.
Step 6 the principle of the invention is that: because the high-temperature refrigerant discharged by the compressor flows to the indoor heat exchanger firstly, the higher the running frequency of the compressor is, the more the discharged refrigerant quantity is, the larger the refrigerant quantity flowing into the indoor heat exchanger for heat exchange is, and the positive correlation between the surface temperature of the indoor heat exchanger and the running frequency of the compressor is. By comparing the surface temperature of the indoor heat exchanger with a set safe temperature threshold value and controlling the compressor to increase and decrease the frequency according to the comparison result, the quantity and the temperature of the refrigerant input into the heat exchanger are controlled, so that the heat exchanger can gradually run to an effective and safe sterilization temperature range again.
According to an embodiment of the present invention, the steps S4 and S5 may be performed sequentially or simultaneously.
Compared with the prior art, the invention has the following beneficial effects: when the air conditioner carries out high-temperature sterilization and self-cleaning, the surface of the heat exchanger is sterilized at high temperature by the electric heater, the heat pump system of the air conditioner carries out auxiliary heating, and the reverse rotation control of the fan is utilized, so that the surface temperature of the heat exchanger can reach the effective sterilization temperature, the system pressure can be controlled, the failure of electric heating dry burning is avoided, and the reliability of the air conditioner is ensured.
Drawings
Fig. 1 is a schematic flow chart illustrating a cleaning method of an air conditioner according to an embodiment of the present invention.
Detailed Description
The invention will be further elucidated and described with reference to the embodiments of the invention described hereinafter.
Example one
The invention discloses an air conditioner cleaning method, which comprises the following steps:
step 1: sending out a high-temperature sterilization and cleaning instruction of the air conditioner;
step 2: the air conditioner receives an instruction, the swing blade of the indoor unit is opened by an angle A, an electric heating device positioned below the indoor heat exchanger is started, and the surface of the indoor heat exchanger is heated by utilizing natural convection;
specifically, the value range of the swing blade angle A is 1-90 degrees
And step 3: obtaining the temperature Td of the electric heating temperature controller and the surface temperature Tc of the heat exchanger of the indoor unit;
and 4, step 4: when the Td is larger than the threshold B, the indoor fan is started to run reversely, and the rotating speed is set to be C, so that air reversely flows through the electric heating device (the electric heating dry burning failure is avoided);
specifically, the value range of the threshold B is 85-105 ℃;
specifically, C is associated with Td, C = a × Td, a is a rotation speed coefficient and ranges from 5 to 20;
and 5: and when the surface temperature Tc of the heat exchanger of the indoor unit is smaller than the threshold value D, starting the compressor of the air-conditioning system and entering a heating mode.
The above steps S4 and S5 may be executed sequentially or simultaneously.
Step 6: controlling the frequency F of the compressor to keep the surface temperature Tc of the heat exchanger of the indoor unit equal to or less than Tc and less than F;
specifically, the compressor initial frequency f1=20+ (30-Tor), Tor being the outdoor ambient temperature;
specifically, when Tc < D and for a duration G, the compressor frequency f increases by Y per minute;
when D is less than or equal to Tc and less than E, the frequency f of the compressor is not changed;
when Tc is more than or equal to E and the duration H is long, the frequency f of the compressor is reduced by Z per minute;
when Tc is more than or equal to F, the compressor is stopped;
when Tc < D, restarting the compressor and entering a heating mode;
wherein D < E < F;
more specifically, the threshold D is generally 55-58 ℃ and preferably 56 ℃;
more specifically, the threshold value E is generally 59-62 ℃, preferably 62 ℃;
more specifically, the threshold value F is generally 64 to 66 ℃, preferably 64 ℃;
more specifically, G is generally taken for 1 to 5 minutes, preferably 2 minutes;
more specifically, H is generally taken for 1 to 3 minutes, preferably 0.5 minute;
more specifically, Y is generally 1-10 Hz, preferably 2 Hz;
more specifically, Z is typically 1-10 Hz, preferably 3 Hz.
Because the high-temperature refrigerant discharged by the compressor flows to the indoor heat exchanger firstly, the higher the running frequency of the compressor is, the more the discharged refrigerant quantity is, the larger the refrigerant quantity flowing into the indoor heat exchanger for heat exchange is, and the positive correlation between the surface temperature of the indoor heat exchanger and the running frequency of the compressor is. By comparing the surface temperature of the indoor heat exchanger with a set safe temperature threshold value and controlling the compressor to increase and decrease the frequency according to the comparison result, the quantity and the temperature of the refrigerant input into the heat exchanger are controlled, so that the heat exchanger can gradually run to an effective and safe sterilization temperature range again.
And 7, when Tc is more than or equal to D and the duration J is up, closing the electric heating device, the indoor fan and the compressor, closing the swing page of the indoor unit, and finishing the cleaning process.
Specifically, J is generally 5 to 60 minutes, preferably 30 minutes.
It should be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principle of the present invention, and the claimed technical solution of the present invention includes but is not limited to the above embodiments, and those skilled in the art can make various equivalent substitutions, modifications, improvements according to the above description of the present invention without departing from the spirit and spirit of the present invention, which are within the protection scope of the spirit of the present invention.
Claims (10)
1. An air conditioner cleaning method, characterized in that the method comprises the following steps:
s1, sending a high-temperature sterilization and cleaning instruction of an air conditioner;
s2, the air conditioner receives an instruction, the swing blade of the indoor unit is opened, an electric heating device located below the indoor heat exchanger is started, and the surface of the indoor heat exchanger is heated by utilizing natural convection;
s3, acquiring the temperature Td of the electric heating temperature controller and the surface temperature Tc of the heat exchanger of the indoor unit;
s4, when the Td is larger than a threshold value B, starting the indoor fan to reversely rotate, and setting the rotating speed to be C so that air reversely flows through the electric heating device;
s5, when the surface temperature Tc of the heat exchanger of the indoor unit is smaller than a threshold value D, starting a compressor of the air conditioning system, and entering a heating mode;
s6, controlling the frequency F of the compressor to keep the surface temperature Tc of the heat exchanger of the indoor unit equal to or less than Tc and less than F;
and S7, when Tc is more than or equal to D and the duration J is up, closing the electric heating, the indoor fan and the compressor, closing the swing page of the indoor unit, and ending the cleaning process.
2. An air conditioner cleaning method as claimed in claim 1, wherein the steps S4 and S5 are performed sequentially or simultaneously.
3. An air conditioner cleaning method as claimed in claim 1, wherein said threshold B of step S4 is 85-105 ℃.
4. The method as claimed in claim 1, wherein the fan rotation speed C is related to Td at step S4, C = a × Td, a is a rotation speed coefficient, and the value ranges from 5 to 20.
5. The method as claimed in claim 1, wherein the initial frequency f1=20+ (30-Tor) at the time of the compressor starting in the step S5, Tor being an outdoor ambient temperature.
6. The method as claimed in claim 1, wherein the specific method for controlling the frequency of the compressor to maintain the surface temperature Tc of the heat exchanger of the indoor unit at D ≦ Tc < F in step S6 is as follows:
when Tc < D and continues for time G, the compressor frequency f starts to increase by Y per minute;
when D is less than or equal to Tc and less than E, the frequency f of the compressor is kept unchanged;
when Tc is more than or equal to E and lasts for the time H, the frequency f of the compressor starts to reduce Z per minute;
when Tc is more than or equal to F, the compressor is stopped;
when Tc < D, restarting the compressor and entering a heating mode;
wherein D < E < F.
7. An air conditioner cleaning method as claimed in claim 6, wherein:
the threshold value D is 55-58 ℃;
the threshold E is 59-62 ℃;
the threshold value F is 64-66 ℃;
the time G is 1-5 minutes;
the time H is 1-3 minutes;
the increment Y of the compressor frequency per minute is 1-10 Hz;
the compressor frequency reduction per minute Z is between 1 and 10 Hz.
8. An air conditioner cleaning method as claimed in claim 6 or 7, characterized in that:
the threshold D is 56 ℃;
the threshold E is 62 ℃;
the threshold value F is 64 ℃;
the time G is 2 minutes;
the time H is 0.5 minute;
the compressor frequency increase per minute Y is 2 Hz;
the compressor frequency reduction per minute Z was 3 hz.
9. An air conditioner cleaning method as claimed in claim 1, wherein said time J of step S7 is 5-60 minutes.
10. An air conditioner cleaning method as claimed in claim 1 or 9, wherein said time J of step S7 is 30 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110558306.9A CN113375267B (en) | 2021-05-21 | 2021-05-21 | Air conditioner cleaning method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110558306.9A CN113375267B (en) | 2021-05-21 | 2021-05-21 | Air conditioner cleaning method |
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| CN113375267A CN113375267A (en) | 2021-09-10 |
| CN113375267B true CN113375267B (en) | 2022-03-29 |
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| CN104422060A (en) * | 2013-08-20 | 2015-03-18 | 广东美的制冷设备有限公司 | Control method and device of air conditioner |
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| CN113375267A (en) | 2021-09-10 |
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