CN106152413B - Machine cleaning method inside and outside air-conditioning - Google Patents
Machine cleaning method inside and outside air-conditioning Download PDFInfo
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- CN106152413B CN106152413B CN201610597052.0A CN201610597052A CN106152413B CN 106152413 B CN106152413 B CN 106152413B CN 201610597052 A CN201610597052 A CN 201610597052A CN 106152413 B CN106152413 B CN 106152413B
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- heat exchanger
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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
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses machine cleaning methods inside and outside a kind of air-conditioning, comprising: control indoor heat exchanger enters frosting mode；Running frequency, the aperture of throttling set and the indoor fan revolving speed for adjusting air conditioner make the evaporating temperature of indoor heat exchanger keep within a preset range, making the solidifying frost in indoor heat exchanger surface；The t1 time is continued to the solidifying frost of indoor heat exchanger, later to compressor frequency reducing, four-way valve commutation is controlled, so that outdoor heat exchanger is entered frosting mode, while to indoor heat exchanger defrost；Running frequency, the aperture of throttling set and the outdoor fan revolving speed for adjusting air conditioner make the evaporating temperature of outdoor heat exchanger keep within a preset range, making the solidifying frost in outdoor heat exchanger surface；The t2 time is continued to the solidifying frost of outdoor heat exchanger, compressor shutdown is controlled, indoor fan and outdoor fan is kept to open, until cleaning is completed.Machine cleaning method inside and outside air-conditioning according to the present invention can solve condensed water heat exchanging device surface in the prior art and carry out the poor problem of cleaning effect.
Description
Technical field
The present invention relates to air-conditioning technical fields, in particular to machine cleaning method inside and outside a kind of air-conditioning.
Background technique
Interval time general for the cleaning of outdoor unit for a long time or never cleans at present, manually due to changing when cleaning
For hot device close to wall, cleaning is inconvenient, causes cleaning to be not thorough, puts in cleaning according to foreign object, may result in fin and fall
Piece, even more influence heat exchanger heat transfer effect, shorten its service life.
A kind of condenser automatic cleaning apparatus is provided in the prior art, which includes that fixation is set in roller bearing
Upper and the cylindrical hair brush with the bottom end that can touch fin, motor are movably disposed at one end of roll shaft, and driven roller
Axis rotation, roll shaft is mobile by the engagement rotation of wheel and rack, and motor is translated with roll shaft.This kind of cleaning device is along cold
The surface of condenser moves up and down, and carries out automated cleaning to condenser.
Existing air-conditioning is general only to clean outdoor unit, will not clean to indoor unit, and clear carrying out outdoor unit
It during washing, is cleared up by condensed water heat exchanging device surface, has some of the contaminants contamination and be difficult in heat exchanger surface
It is clear, cause the cleaning effect of heat exchanger surface poor.
Summary of the invention
The purpose of the present invention is to propose to machine cleaning methods inside and outside a kind of air-conditioning, to solve condensed water exchange in the prior art
Hot device surface carries out the poor problem of cleaning effect.
According to an aspect of the invention, there is provided machine cleaning method inside and outside a kind of air-conditioning, comprising:
Control indoor heat exchanger enters frosting mode；
Running frequency, the aperture of throttling set and the indoor fan revolving speed for adjusting air conditioner, make the evaporation of indoor heat exchanger
Temperature keeps within a preset range, making the solidifying frost in indoor heat exchanger surface；
The t1 time is continued to the solidifying frost of indoor heat exchanger, later to compressor frequency reducing, four-way valve commutation is controlled, makes outdoor heat exchange
Device enters frosting mode, while to indoor heat exchanger defrost；
Running frequency, the aperture of throttling set and the outdoor fan revolving speed for adjusting air conditioner, make the evaporation of outdoor heat exchanger
Temperature keeps within a preset range, making the solidifying frost in outdoor heat exchanger surface；
The t2 time is continued to the solidifying frost of outdoor heat exchanger, compressor shutdown is controlled, indoor fan and outdoor fan is kept to open,
Until cleaning is completed.
Preferably, make indoor heat exchanger surface coagulate frost step include:
After heat exchanger enters frosting mode indoors, control indoor fan starts the t3 time, and heat exchanger surface is made to cover water
Film is then shut off indoor fan.
Preferably, the indoor fan starting time is calculated by following formula:
Q therein is the latent cooling capacity of indoor heat exchanger blower open stage indoors, and k2 is that the evaporation under leaving air temp is latent
Heat, m cover moisture film institute water requirement for indoor heat exchanger.
Preferably, the cooling capacity Q that dives is calculated by following formula:
Q=k2*q* (W1-W2)/V (1+W3)
Wherein q is the air quantity of indoor fan measured point, and W1 is air inlet absolute humidity, and W2 air outlet absolute humidity, W3 goes out
Air port relative humidity, V air outlet humid volume.
Preferably, water m is calculated by following formula:
M=ρ * V1=ρ * L*W*H*n*2*h1*k1
Wherein L is radiator heat-dissipation leaf length, and W is radiator fin width, and H is radiator fin height, and n is scattered
Radiator fin quantity, h1 are water film thickness, and k1 is surplus constant, and ρ is the density of water.
Preferably, the surface of indoor heat exchanger is coated with hydrophilic coating.
Preferably, the air quantity q of indoor fan measured point is calculated by following formula:
Q=k3*N+C
Wherein K3 and C is different type of machines and the constant parameter that air outlet designs, and N is indoor fan revolving speed.
According to the another aspect that this law is bright, machine cleaning method inside and outside a kind of air-conditioning is provided, comprising:
Control outdoor heat exchanger enters frosting mode；
Running frequency, the aperture of throttling set and the outdoor fan revolving speed for adjusting air conditioner, make the evaporation of outdoor heat exchanger
Temperature keeps within a preset range, making the solidifying frost in outdoor heat exchanger surface；
The t2 time is continued to the solidifying frost of outdoor heat exchanger, later to compressor frequency reducing, four-way valve commutation is controlled, makes indoor heat exchange
Device enters frosting mode, while to outdoor heat exchanger defrost；
Running frequency, the aperture of throttling set and the indoor fan revolving speed for adjusting air conditioner, make the evaporation of indoor heat exchanger
Temperature keeps within a preset range, making the solidifying frost in indoor heat exchanger surface；
The t2 time is continued to the solidifying frost of indoor heat exchanger, compressor shutdown is controlled, indoor fan and outdoor fan is kept to open,
Until cleaning is completed.
Machine cleaning method includes: that control indoor heat exchanger enters frosting mode inside and outside air-conditioning of the invention；Adjust air conditioner
Running frequency, the aperture of throttling set and indoor fan revolving speed, so that the evaporating temperature of indoor heat exchanger is maintained at preset range
It is interior, make the solidifying frost in indoor heat exchanger surface；The t1 time is continued to the solidifying frost of indoor heat exchanger, later to compressor frequency reducing, controls four-way
Valve commutation, makes outdoor heat exchanger enter frosting mode, while to indoor heat exchanger defrost；Adjust running frequency, the section of air conditioner
The aperture and outdoor fan revolving speed for flowing device make the evaporating temperature of outdoor heat exchanger keep within a preset range, making outdoor heat exchange
The solidifying frost in device surface；The t2 time is continued to the solidifying frost of outdoor heat exchanger, compressor shutdown is controlled, indoor fan and outdoor fan is kept to open
It opens, until cleaning is completed.Machine cleaning method inside and outside air-conditioning of the invention can be filled by the running frequency to air conditioner, throttling
The aperture and outdoor fan revolving speed set are adjusted, be guaranteed at clean conditions heat exchanger can Quick uniform frosting, improve
The defrosting efficiency of heat exchanger, while can be removed dust etc. from heat exchanger surface by heat exchanger surface frosting, then
It is cleaned by defrost, the cleaning effect of heat exchanging device can be improved.Simultaneously because can be by compression during defrosting
The frequency reducing mode of machine realizes the commutation of four-way valve, therefore ensure that compressor is not shut down, and reduces since compressor shutdown causes
Heating capacity decaying, reduce defrosting cycle, improve the heating comfort and heating performance of air conditioner.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the first control flow chart of machine cleaning method inside and outside the air-conditioning of the embodiment of the present invention；
Fig. 2 is the second control flow chart of machine cleaning method inside and outside the air-conditioning of the embodiment of the present invention.
Specific embodiment
In the following detailed description, a large amount of specific details are proposed, in order to provide a thorough understanding of the present invention.But
It will be understood by those within the art that implementable present invention without these specific details.In other cases, without detailed
Well-known method, process, component and circuit are carefully described, in order to avoid influence the understanding of the present invention.
In conjunction with shown in Figure 1, according to an embodiment of the invention, machine cleaning method includes: to change in control room inside and outside air-conditioning
Hot device enters frosting mode；Running frequency, the aperture of throttling set and the indoor fan revolving speed for adjusting air conditioner, make indoor heat exchange
The evaporating temperature of device keeps within a preset range, making the solidifying frost in indoor heat exchanger surface；The t1 time is continued to the solidifying frost of indoor heat exchanger,
Later to compressor frequency reducing, four-way valve commutation is controlled, so that outdoor heat exchanger is entered frosting mode, while to indoor heat exchanger
Frost；Running frequency, the aperture of throttling set and the outdoor fan revolving speed for adjusting air conditioner, protect the evaporating temperature of outdoor heat exchanger
It holds within a preset range, makes the solidifying frost in outdoor heat exchanger surface；Is continued to the solidifying frost of outdoor heat exchanger, control compressor stops the t2 time
Machine keeps indoor fan and outdoor fan to open, until cleaning is completed.
Machine cleaning method inside and outside air-conditioning of the invention can pass through the aperture of running frequency, throttling set to air conditioner
Be adjusted with outdoor fan revolving speed, be guaranteed at clean conditions heat exchanger can Quick uniform frosting, improve heat exchanger
Defrosting efficiency, while can be removed dust etc. from heat exchanger surface by heat exchanger surface frosting, then pass through defrost
It is cleaned, the cleaning effect of heat exchanging device can be improved.Simultaneously because the frequency reducing to compressor can be passed through during defrosting
Mode realizes the commutation of four-way valve, therefore ensure that compressor is not shut down, and reduces and heats energy as caused by compressor shutdown
Power decaying, reduces defrosting cycle, improves the heating comfort and heating performance of air conditioner.
Air-conditioning receives the signal that automatically cleaning enters, and signal can be the accumulation interval time, signal etc. is forced into, into certainly
After cleaning mode, by the frequency to air-conditioning, the control of throttle valve opening and rotation speed of fan, by the evaporating temperature of indoor heat exchanger
It is maintained in constant a value or range, the solidifying frost of indoor heat exchanger superficial velocity can be made in the range, when reaching room
After the interior automatically cleaning period, compressor starts frequency reducing, be downconverted to four-way valve commutation allow frequency, simultaneously because frequency it is rapid drop and
The effect of indoor heat exchange, it is water that the solidifying frost in interior, which melts rapidly, cleans indoor unit；It is kept after a certain period of time in commutating frequency, four-way
Valve commutation, complete machine enter outdoor automatically cleaning process, compressor starts raising frequency, while outdoor fan, throttle valve opening being cooperated to carry out
It controls in evaporating temperature a to steady state value or range, outdoor heat exchanger surface can be made to coagulate frost rapidly in the range, when
When reaching outdoor automatically cleaning completion condition, compressor shutdown, indoor and outdoor blower is remained operational, outdoor thawing, entire cleaning week
Phase reaches, and automatically cleaning exits.
So that indoor heat exchanger surface is coagulated the step of frost includes: wind in control room after heat exchanger enters frosting mode indoors
Machine starts the t3 time, so that heat exchanger surface is covered moisture film, is then shut off indoor fan.
The indoor fan starting time is calculated by following formula:
Q therein is the latent cooling capacity of indoor heat exchanger blower open stage indoors, and k2 is that the evaporation under leaving air temp is latent
Heat, m cover moisture film institute water requirement for indoor heat exchanger.
Latent cooling capacity Q is calculated by following formula:
Q=k2*q* (W1-W2)/V (1+W3)
Wherein q is the air quantity of indoor fan measured point, and W1 is air inlet absolute humidity, and W2 air outlet absolute humidity, W3 goes out
Air port relative humidity, V air outlet humid volume.
Water m is calculated by following formula:
M=ρ * V1=ρ * L*W*H*n*2*h1*k1
Wherein L is radiator heat-dissipation leaf length, and W is radiator fin width, and H is radiator fin height, and n is scattered
Radiator fin quantity, h1 are water film thickness, and k1 is surplus constant, and ρ is the density of water.
K1 herein can be, for example, 200nm with value 1.2, h1.
The air quantity q of indoor fan measured point is calculated by following formula:
Q=k3*N+C
Wherein K3 and C is different type of machines and the constant parameter that air outlet designs, and N is indoor fan revolving speed.
Preferably, the surface of indoor heat exchanger is coated with hydrophilic coating, can be more convenient the surface shape of heat exchanger indoors
At moisture film, and it can guarantee that moisture film uniformly covers on the surface of heat exchanger.
The calculating of the runing time t1 of the calculation method and indoor fan of the outdoor fan runing time t4 of air-conditioner outdoor unit
Method is identical, and which is not described herein again.
In conjunction with shown in Figure 2, second embodiment according to the present invention, machine cleaning method includes: control room inside and outside air-conditioning
External heat exchanger enters frosting mode；Running frequency, the aperture of throttling set and the outdoor fan revolving speed for adjusting air conditioner, make outdoor
The evaporating temperature of heat exchanger keeps within a preset range, making the solidifying frost in outdoor heat exchanger surface；T2 is continued to the solidifying frost of outdoor heat exchanger
Time controls four-way valve commutation, so that indoor heat exchanger is entered frosting mode, while to outdoor heat exchange later to compressor frequency reducing
Device defrost；Running frequency, the aperture of throttling set and the indoor fan revolving speed for adjusting air conditioner, make the evaporation temperature of indoor heat exchanger
Degree keeps within a preset range, making the solidifying frost in indoor heat exchanger surface；The t2 time is continued to the solidifying frost of indoor heat exchanger, controls compressor
It shuts down, indoor fan and outdoor fan is kept to open, until cleaning is completed.
The above description of the embodiment is only used to help understand the method for the present invention and its core ideas；Meanwhile for this
The those skilled in the art in field, according to the thought of the present invention, there will be changes in the specific implementation manner and application range,
In conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (8)
1. machine cleaning method inside and outside a kind of air-conditioning characterized by comprising
Control indoor heat exchanger enters frosting mode；
Running frequency, the aperture of throttling set and the indoor fan revolving speed for adjusting air conditioner, make the evaporating temperature of indoor heat exchanger
It keeps within a preset range, making the solidifying frost in indoor heat exchanger surface；
Frost solidifying to indoor heat exchanger continues the t1 time, later to compressor frequency reducing, controls four-way valve commutation, make outdoor heat exchanger into
Enter frosting mode, while to indoor heat exchanger defrost；
Running frequency, the aperture of throttling set and the outdoor fan revolving speed for adjusting air conditioner, make the evaporating temperature of outdoor heat exchanger
It keeps within a preset range, making the solidifying frost in outdoor heat exchanger surface；
The t2 time is continued to the solidifying frost of outdoor heat exchanger, compressor shutdown is controlled, indoor fan and outdoor fan is kept to open, until
Cleaning is completed.
2. machine cleaning method inside and outside air-conditioning according to claim 1, which is characterized in that described to keep indoor heat exchanger surface solidifying
Frost step include:
After heat exchanger enters frosting mode indoors, control indoor fan starts the t3 time, so that heat exchanger surface is covered moisture film, so
After close indoor fan.
3. machine cleaning method inside and outside air-conditioning according to claim 2, which is characterized in that indoor fan starts the time by such as
Lower formula calculates:
Q therein is the latent cooling capacity of indoor heat exchanger blower open stage indoors, and k2 is the evaporation latent heat under leaving air temp, m
Moisture film institute water requirement is covered for indoor heat exchanger.
4. machine cleaning method inside and outside air-conditioning according to claim 3, which is characterized in that latent cooling capacity Q passes through following formula meter
It calculates:
Q=k2*q* (W1-W2)/V (1+W3)
Wherein q is the air quantity of indoor fan measured point, and W1 is air inlet absolute humidity, W2 air outlet absolute humidity, W3 air outlet
Relative humidity, V air outlet humid volume.
5. machine cleaning method inside and outside air-conditioning according to claim 3, which is characterized in that water m is calculated by following formula:
M=ρ * V1=ρ * L*W*H*n*2*h1*k1
Wherein L is radiator heat-dissipation leaf length, and W is radiator fin width, and H is radiator fin height, and n is radiator
Cooling fin quantity, h1 are water film thickness, and k1 is surplus constant, and ρ is the density of water.
6. machine cleaning method inside and outside air-conditioning according to claim 1, which is characterized in that the surface of indoor heat exchanger is coated with
Hydrophilic coating.
7. machine cleaning method inside and outside air-conditioning according to claim 4, which is characterized in that the air quantity q of indoor fan measured point
It is calculated by following formula:
Q=k3*N+C
Wherein K3 and C is different type of machines and the constant parameter that air outlet designs, and N is indoor fan revolving speed.
8. machine cleaning method inside and outside a kind of air-conditioning characterized by comprising
Control outdoor heat exchanger enters frosting mode；
Running frequency, the aperture of throttling set and the outdoor fan revolving speed for adjusting air conditioner, make the evaporating temperature of outdoor heat exchanger
It keeps within a preset range, making the solidifying frost in outdoor heat exchanger surface；
Frost solidifying to outdoor heat exchanger continues the t2 time, later to compressor frequency reducing, controls four-way valve commutation, make indoor heat exchanger into
Enter frosting mode, while to outdoor heat exchanger defrost；
Running frequency, the aperture of throttling set and the indoor fan revolving speed for adjusting air conditioner, make the evaporating temperature of indoor heat exchanger
It keeps within a preset range, making the solidifying frost in indoor heat exchanger surface；
The t2 time is continued to the solidifying frost of indoor heat exchanger, compressor shutdown is controlled, indoor fan and outdoor fan is kept to open, until
Cleaning is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610597052.0A CN106152413B (en) | 2016-07-27 | 2016-07-27 | Machine cleaning method inside and outside air-conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610597052.0A CN106152413B (en) | 2016-07-27 | 2016-07-27 | Machine cleaning method inside and outside air-conditioning |
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| Publication Number | Publication Date |
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| CN106152413A CN106152413A (en) | 2016-11-23 |
| CN106152413B true CN106152413B (en) | 2019-02-05 |
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| CN201610597052.0A Active CN106152413B (en) | 2016-07-27 | 2016-07-27 | Machine cleaning method inside and outside air-conditioning |
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| CN111536657B (en) | 2020-03-03 | 2022-04-19 | 青岛海尔空调器有限总公司 | Method for cleaning air conditioner and air conditioner |
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