CN106152413A - Air-conditioning internal-external machine cleaning method - Google Patents
Air-conditioning internal-external machine cleaning method Download PDFInfo
- Publication number
- CN106152413A CN106152413A CN201610597052.0A CN201610597052A CN106152413A CN 106152413 A CN106152413 A CN 106152413A CN 201610597052 A CN201610597052 A CN 201610597052A CN 106152413 A CN106152413 A CN 106152413A
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- heat exchanger
- air
- indoor
- indoor heat
- frost
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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 a kind of air-conditioning internal-external machine cleaning method, including: control indoor heat exchanger and enter frosting pattern；The regulation running frequency of air-conditioner, the aperture of throttling arrangement and indoor fan rotating speed, make the evaporating temperature of indoor heat exchanger be maintained in preset range, makes the solidifying frost in indoor heat exchanger surface；Frost solidifying to indoor heat exchanger continues the t1 time, afterwards to compressor frequency reducing, controls cross valve commutation, makes outdoor heat exchanger enter frosting pattern, simultaneously to indoor heat exchanger defrost；The regulation running frequency of air-conditioner, the aperture of throttling arrangement and outdoor fan rotating speed, make the evaporating temperature of outdoor heat exchanger be maintained in preset range, makes the solidifying frost in outdoor heat exchanger surface；Frost solidifying to outdoor heat exchanger continues the t2 time, controls compressor shutdown, keeps indoor fan and outdoor fan to open, until having cleaned.Air-conditioning internal-external machine cleaning method according to the present invention, can solve condensed water heat exchanger surface of the prior art and carry out the problem that cleaning effect is poor.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of air-conditioning internal-external machine cleaning method.
Background technology
Cleaning for off-premises station at present for a long time or is never cleaned, owing to changing during manual cleaning general interval time
Hot device, near body of wall, cleans inconvenience, causes cleaning not thorough, puts in cleaning according to foreign object, may result in fin
Sheet, affects heat exchanger heat transfer effect especially, shortens its service life.
Providing a kind of condenser automatic cleaning apparatus in the prior art, this cleaning device includes that fixed cover is located at roller bearing
Upper and cylindrical hair brush with the bottom that can touch fin, motor is movably disposed at one end of roll shaft, and drives roller
Axle rotates, and roll shaft is moved by the engagement rotation of wheel and rack, and motor translates with roll shaft.This kind of cleaning device is along cold
The surface of condenser moves up and down, and condenser is carried out automated cleaning.
Existing air-conditioning is general only to be cleaned off-premises station, will not be carried out indoor set, and clear carrying out off-premises station
During washing, cleared up by condensed water heat exchanger surface, have the contamination of partial contamination thing and be difficult at heat exchanger surface
Clear, the cleaning performance causing heat exchanger surface is poor.
Summary of the invention
The purpose of the present invention is to propose to a kind of air-conditioning internal-external machine cleaning method, to solve condensed water of the prior art exchange
Hot device surface carries out the problem that cleaning effect is poor.
According to an aspect of the invention, it is provided a kind of air-conditioning internal-external machine cleaning method, including:
Control indoor heat exchanger and enter frosting pattern；
The regulation running frequency of air-conditioner, the aperture of throttling arrangement and indoor fan rotating speed, make the evaporation of indoor heat exchanger
Temperature is maintained in preset range, makes the solidifying frost in indoor heat exchanger surface；
Frost solidifying to indoor heat exchanger continues the t1 time, afterwards to compressor frequency reducing, controls cross valve commutation, makes outdoor heat exchange
Device enters frosting pattern, simultaneously to indoor heat exchanger defrost；
The regulation running frequency of air-conditioner, the aperture of throttling arrangement and outdoor fan rotating speed, make the evaporation of outdoor heat exchanger
Temperature is maintained in preset range, makes the solidifying frost in outdoor heat exchanger surface；
Frost solidifying to outdoor heat exchanger continues the t2 time, controls compressor shutdown, keeps indoor fan and outdoor fan to open,
Until having cleaned.
Preferably, the step making the solidifying frost in indoor heat exchanger surface includes:
After indoor heat exchanger enters frosting pattern, control room inner blower starts the t3 time, makes heat exchanger surface cover water
Film, is then shut off indoor fan.
Preferably, the indoor fan startup time is calculated by equation below:
Q therein is the indoor heat exchanger latent cold in indoor fan open stage, and k2 is that the evaporation under leaving air temp is dived
Heat, m is that indoor heat exchanger covers moisture film institute water requirement.
Preferably, latent cold Q is calculated by equation below:
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 yield m is calculated by equation below:
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 is water film thickness, and k1 is surplus constant, and ρ is the density of water.
Preferably, the surface-coated of indoor heat exchanger has hydrophilic coating.
Preferably, the air quantity q of indoor fan measured point is calculated by equation below:
Q=k3*N+C
Wherein K3 Yu C is different type of machines and the constant parameter of air outlet design, and N is indoor fan rotating speed.
According to the another aspect that this law is bright, it is provided that a kind of air-conditioning internal-external machine cleaning method, including:
Control room external heat exchanger enters frosting pattern；
The regulation running frequency of air-conditioner, the aperture of throttling arrangement and outdoor fan rotating speed, make the evaporation of outdoor heat exchanger
Temperature is maintained in preset range, makes the solidifying frost in outdoor heat exchanger surface；
Frost solidifying to outdoor heat exchanger continues the t2 time, afterwards to compressor frequency reducing, controls cross valve commutation, makes indoor heat exchange
Device enters frosting pattern, simultaneously to outdoor heat exchanger defrost；
The regulation running frequency of air-conditioner, the aperture of throttling arrangement and indoor fan rotating speed, make the evaporation of indoor heat exchanger
Temperature is maintained in preset range, makes the solidifying frost in indoor heat exchanger surface；
Frost solidifying to indoor heat exchanger continues the t2 time, controls compressor shutdown, keeps indoor fan and outdoor fan to open,
Until having cleaned.
The air-conditioning internal-external machine cleaning method of the present invention includes: controls indoor heat exchanger and enters frosting pattern；Regulation air-conditioner
Running frequency, the aperture of throttling arrangement and indoor fan rotating speed, make the evaporating temperature of indoor heat exchanger be maintained at preset range
In, make the solidifying frost in indoor heat exchanger surface；Frost solidifying to indoor heat exchanger continues the t1 time, afterwards to compressor frequency reducing, controls four-way
Valve commutates, and makes outdoor heat exchanger enter frosting pattern, simultaneously to indoor heat exchanger defrost；The regulation running frequency of air-conditioner, joint
The aperture of stream device and outdoor fan rotating speed, make the evaporating temperature of outdoor heat exchanger be maintained in preset range, make outdoor heat exchange
The solidifying frost in device surface；Frost solidifying to outdoor heat exchanger continues the t2 time, controls compressor shutdown, keeps indoor fan and outdoor fan to open
Open, until having cleaned.The air-conditioning internal-external machine cleaning method of the present invention, can be by filling the running frequency of air-conditioner, throttling
Aperture and the outdoor fan rotating speed put are adjusted, it is ensured that be in clean conditions heat exchanger can Quick uniform frosting, improve
The defrosting efficiency of heat exchanger, can be peeled off dust etc. from heat exchanger surface by heat exchanger surface frosting, then simultaneously
It is cleaned by defrost, the cleaning effect of heat exchanger can be improved.Simultaneously because can be by compression during Chu Shuan
The frequency reducing mode of machine realizes the commutation of cross valve, thereby ensure that compressor is not shut down, decreases owing to compressor shutdown causes
Heating capacity decay, reduce defrosting cycle, improve air-conditioner heats comfortableness and heating performance.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this
Bright schematic description and description is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the first control flow chart of the air-conditioning internal-external machine cleaning method of the embodiment of the present invention；
Fig. 2 is the second control flow chart of the air-conditioning internal-external machine cleaning method of the embodiment of the present invention.
Detailed description of the invention
In the following detailed description, a large amount of specific detail is proposed, in order to provide thorough understanding of the present invention.But,
Even if it will be understood by those within the art that and not having these specific detail also can implement the present invention.In other cases, the most in detail
The well-known method of thin description, process, assembly and circuit, in order to avoid affecting the understanding of the present invention.
In conjunction with shown in Figure 1, according to embodiments of the invention, air-conditioning internal-external machine cleaning method includes: change in control room
Hot device enters frosting pattern；The regulation running frequency of air-conditioner, the aperture of throttling arrangement and indoor fan rotating speed, make indoor heat exchange
The evaporating temperature of device is maintained in preset range, makes the solidifying frost in indoor heat exchanger surface；Frost solidifying to indoor heat exchanger continues the t1 time,
Afterwards to compressor frequency reducing, control cross valve commutation, make outdoor heat exchanger enter frosting pattern, simultaneously to indoor heat exchanger
Frost；The regulation running frequency of air-conditioner, the aperture of throttling arrangement and outdoor fan rotating speed, make the evaporating temperature of outdoor heat exchanger protect
Hold in preset range, make the solidifying frost in outdoor heat exchanger surface；Frost solidifying to outdoor heat exchanger continues the t2 time, controls compressor and stops
Machine, keeps indoor fan and outdoor fan to open, until having cleaned.
The air-conditioning internal-external machine cleaning method of the present invention, can be by the running frequency of air-conditioner, the aperture of throttling arrangement
Be adjusted with outdoor fan rotating speed, it is ensured that be in clean conditions heat exchanger can Quick uniform frosting, improve heat exchanger
Defrosting efficiency, can be peeled off dust etc. from heat exchanger surface by heat exchanger surface frosting simultaneously, then pass through defrost
It is cleaned, the cleaning effect of heat exchanger can be improved.Simultaneously because can be by the frequency reducing to compressor during Chu Shuan
Mode realizes the commutation of cross valve, thereby ensure that compressor is not shut down, decreases and heats energy due to what compressor shutdown caused
Power decays, and reduces defrosting cycle, and improve air-conditioner heats comfortableness and heating performance.
Air-conditioning is received from the signal that cleaning enters, and signal can be the accumulation interval time, is forced into signal etc., enters certainly
After cleaning mode, by the control of the frequency to air-conditioning, throttle valve opening and rotation speed of fan, by the evaporating temperature of indoor heat exchanger
It is maintained in a constant value or scope, the solidifying frost of indoor heat exchanger superficial velocity can be made within the range, when reaching room
Interior automatically cleaning week after date, compressor starts frequency reducing, be downconverted to cross valve commutation and allow frequency, simultaneously because the fall rapidly of frequency and
The effect of indoor heat exchange, the indoor frost that coagulates melts rapidly as water, cleaning indoor set；After commutating frequency keeps certain time, four-way
Valve commutates, and complete machine enters outdoor automatically cleaning process, compressor starts raising frequency, coordinates outdoor fan, throttle valve opening to carry out simultaneously
Control evaporating temperature in a steady state value or scope, outdoor heat exchanger surface solidifying frost rapidly can be made within the range, when
When the outdoor automatically cleaning of arrival completes condition, compressor shutdown, indoor and outdoor blower fan remains on, outdoor thawing, whole cleaning week
Phase reaches, and automatically cleaning exits.
The step making the solidifying frost in indoor heat exchanger surface includes: after indoor heat exchanger enters frosting pattern, control room endogenous wind
Machine starts the t3 time, makes heat exchanger surface cover moisture film, is then shut off indoor fan.
The indoor fan startup time is calculated by equation below:
Q therein is the indoor heat exchanger latent cold in indoor fan open stage, and k2 is that the evaporation under leaving air temp is dived
Heat, m is that indoor heat exchanger covers moisture film institute water requirement.
Latent cold Q is calculated by equation below:
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 yield m is calculated by equation below:
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 is water film thickness, and k1 is surplus constant, and ρ is the density of water.
K1 herein can be with value 1.2, h1 for example, 200nm.
The air quantity q of indoor fan measured point is calculated by equation below:
Q=k3*N+C
Wherein K3 Yu C is different type of machines and the constant parameter of air outlet design, and N is indoor fan rotating speed.
Preferably, the surface-coated of indoor heat exchanger has hydrophilic coating, can the more convenient surface shape at indoor heat exchanger
Become moisture film, and ensure that moisture film uniformly covers on the surface of heat exchanger.
The outdoor fan of air-conditioner outdoor unit runs the calculating of the computational methods of time t4 and the operation time t1 of indoor fan
Method is identical, repeats no more here.
In conjunction with shown in Figure 2, according to the second embodiment of the present invention, air-conditioning internal-external machine cleaning method includes: control room
External heat exchanger enters frosting pattern；The regulation running frequency of air-conditioner, the aperture of throttling arrangement and outdoor fan rotating speed, make outdoor
The evaporating temperature of heat exchanger is maintained in preset range, makes the solidifying frost in outdoor heat exchanger surface；Frost solidifying to outdoor heat exchanger continues t2
Time, afterwards to compressor frequency reducing, control cross valve commutation, make indoor heat exchanger enter frosting pattern, simultaneously to outdoor heat exchange
Device defrost；The regulation running frequency of air-conditioner, the aperture of throttling arrangement and indoor fan rotating speed, make the evaporation temperature of indoor heat exchanger
Degree is maintained in preset range, makes the solidifying frost in indoor heat exchanger surface；Frost solidifying to indoor heat exchanger continues the t2 time, controls compressor
Shutting down, keeping indoor fan and outdoor fan to open, until having cleaned.
The explanation of above example is only intended to help to understand method and the core concept thereof of the present invention；Simultaneously for this
The those skilled in the art in field, according to the thought of the present invention, the most all will change,
In sum, this specification content should not be construed as limitation of the present invention.
Claims (8)
1. an air-conditioning internal-external machine cleaning method, it is characterised in that including:
Control indoor heat exchanger and enter frosting pattern；
The regulation running frequency of air-conditioner, the aperture of throttling arrangement and indoor fan rotating speed, make the evaporating temperature of indoor heat exchanger
It is maintained in preset range, makes the solidifying frost in indoor heat exchanger surface；
Frost solidifying to indoor heat exchanger continues the t1 time, afterwards to compressor frequency reducing, controls cross valve commutation, makes outdoor heat exchanger enter
Enter frosting pattern, simultaneously to indoor heat exchanger defrost；
The regulation running frequency of air-conditioner, the aperture of throttling arrangement and outdoor fan rotating speed, make the evaporating temperature of outdoor heat exchanger
It is maintained in preset range, makes the solidifying frost in outdoor heat exchanger surface；
Frost solidifying to outdoor heat exchanger continues the t2 time, controls compressor shutdown, keeps indoor fan and outdoor fan to open, until
Cleaning completes.
Air-conditioning internal-external machine cleaning method the most according to claim 1, it is characterised in that described in make indoor heat exchanger surface coagulate
The step of frost includes:
After indoor heat exchanger enters frosting pattern, control room inner blower starts the t3 time, makes heat exchanger surface cover moisture film, so
Rear close chamber inner blower.
Air-conditioning internal-external machine cleaning method the most according to claim 2, it is characterised in that indoor fan starts the time by such as
Lower formula calculates:
Q therein is the indoor heat exchanger latent cold in indoor fan open stage, and k2 is the evaporation latent heat under leaving air temp, m
Moisture film institute water requirement is covered for indoor heat exchanger.
Air-conditioning internal-external machine cleaning method the most according to claim 3, it is characterised in that latent cold Q is by equation below meter
Calculate:
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.
Air-conditioning internal-external machine cleaning method the most according to claim 3, it is characterised in that water yield m is calculated by equation below:
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
Fin quantity, h1 is water film thickness, and k1 is surplus constant, and ρ is the density of water.
Air-conditioning internal-external machine cleaning method the most according to claim 1, it is characterised in that the surface-coated of indoor heat exchanger has
Hydrophilic coating.
Air-conditioning internal-external machine cleaning method the most according to claim 4, it is characterised in that the air quantity q of indoor fan measured point
Calculated by equation below:
Q=k3*N+C
Wherein K3 Yu C is different type of machines and the constant parameter of air outlet design, and N is indoor fan rotating speed.
8. an air-conditioning internal-external machine cleaning method, it is characterised in that including:
Control room external heat exchanger enters frosting pattern；
The regulation running frequency of air-conditioner, the aperture of throttling arrangement and outdoor fan rotating speed, make the evaporating temperature of outdoor heat exchanger
It is maintained in preset range, makes the solidifying frost in outdoor heat exchanger surface；
Frost solidifying to outdoor heat exchanger continues the t2 time, afterwards to compressor frequency reducing, controls cross valve commutation, makes indoor heat exchanger enter
Enter frosting pattern, simultaneously to outdoor heat exchanger defrost；
The regulation running frequency of air-conditioner, the aperture of throttling arrangement and indoor fan rotating speed, make the evaporating temperature of indoor heat exchanger
It is maintained in preset range, makes the solidifying frost in indoor heat exchanger surface；
Frost solidifying to indoor heat exchanger continues the t2 time, controls compressor shutdown, keeps indoor fan and outdoor fan to open, until
Cleaning completes.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106152413A true CN106152413A (en) | 2016-11-23 |
| CN106152413B CN106152413B (en) | 2019-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610597052.0A Active CN106152413B (en) | 2016-07-27 | 2016-07-27 | Machine cleaning method inside and outside air-conditioning |
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