CN111947253A - Automatic cleaning and filtering device, control method and air conditioner comprising filtering device - Google Patents
Automatic cleaning and filtering device, control method and air conditioner comprising filtering device Download PDFInfo
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- CN111947253A CN111947253A CN202010956368.0A CN202010956368A CN111947253A CN 111947253 A CN111947253 A CN 111947253A CN 202010956368 A CN202010956368 A CN 202010956368A CN 111947253 A CN111947253 A CN 111947253A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 85
- 238000001914 filtration Methods 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000000428 dust Substances 0.000 claims abstract description 118
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 44
- 230000007246 mechanism Effects 0.000 claims description 38
- 230000007613 environmental effect Effects 0.000 claims description 13
- 230000001680 brushing effect Effects 0.000 claims description 12
- 239000012717 electrostatic precipitator Substances 0.000 claims description 12
- 239000012535 impurity Substances 0.000 claims description 8
- 230000002441 reversible effect Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 210000004209 hair Anatomy 0.000 description 27
- 230000008569 process Effects 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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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
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
-
- 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
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/39—Monitoring filter performance
-
- 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
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- 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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses an automatic cleaning and filtering device, a control method and an air conditioner comprising the filtering device, wherein the automatic cleaning and filtering device comprises a coil pipe, a filtering component arranged in the coil pipe and a fan capable of supplying air in a bidirectional mode. The invention has the effect of timely and automatically cleaning the accumulated dust on the filtering device in the air conditioner or the fresh air system, is beneficial to improving the air circulation efficiency, ensures the filtering function, does not cause secondary pollution to indoor and outdoor air, intensively treats the dust and is convenient for personnel to operate.
Description
Technical Field
The invention relates to the technical field of air filtration, in particular to an automatic cleaning and filtering device, a control method and an air conditioner comprising the filtering device.
Background
The air conditioner is equipment capable of refrigerating/heating indoors, is widely applied to domestic and office work of residents in China, along with the development of technology and the improvement of emergency level, the requirement of users on air quality is increasingly improved, and the air conditioner is gradually provided with equipment such as an air filter or a fresh air system and the like, so that the quality of air coming out of an indoor unit of the air conditioner is improved. However, after a long time, hair, debris, dust and the like on the air filter gradually increase, air resistance of the air conditioner is increased after the hair, debris, dust and the like are accumulated to a certain degree, and a large amount of bacteria are easily bred in a large amount of dust.
And to the dust impurity that gathers on the air cleaner, generally need the maintainer regularly to dismantle the clearance, the process of tearing open in ann is comparatively loaded down with trivial details, in big space, for example public transport hub terminal building, high-speed railway station and large-scale factory building, because the floor space is bigger higher, the blast pipe is more, and is more difficult to air cleaner's cleanness, needs dismouting air conditioning unit repeatedly. The disassembly and assembly cleaning process is complex, the cost of maintaining the air conditioning unit is increased, the repeated disassembly is easy to reduce the service life of the unit, and the normal work of the air conditioner and the fresh air system is delayed.
Chinese patent document No. CN207487064U discloses a reverse blowing dust removal blower, which includes a dust removal brush disposed at the air outlet side of the filter screen, and a bidirectional blower, when the dust on the filter screen needs to be removed, the blower blows air reversely, and the dust attached to the filter screen is directly blown out of the room by the dust removal brush, so as to complete the dust removal process.
However, the deposition that above-mentioned scheme depends on with the filter screen, impurity directly outwards blow off outdoors, cause the pollution to outdoor environment easily, simultaneously because pipeline inside passage and angle change are more, if can not blow off the deposition totally outdoors, can have in the pipeline to remain the collection dirt, when the fan rotates to normal angle, filter screen normal filtration, remaining collection dirt can depend on the filter screen again in the pipeline, and clean effect is difficult to guarantee.
Disclosure of Invention
In order to overcome the defect that the cleaning effect of a filter screen is difficult to guarantee in the prior art, the invention provides an automatic cleaning filter device.
The technical scheme includes that the automatic cleaning and filtering device comprises a coil pipe, a filtering assembly and a fan, wherein the filtering assembly is arranged in the coil pipe, the fan can supply air in a bidirectional mode, a first baffle assembly for switching the on-off state of the filtering assembly is arranged at an air return opening of the coil pipe, the filtering assembly is located between the first baffle assembly and the fan, the coil pipe is further communicated with a dust collecting pipeline, and the communication position of the dust collecting pipeline and the coil pipe is located between the first baffle assembly and the filtering assembly.
Preferably, a second baffle assembly for switching the on-off state of the coil pipe is arranged at the communication position of the coil pipe and the dust collection pipeline, and the first baffle assembly and the second baffle assembly are not opened or closed at the same time.
Preferably, a fan fixing plate capable of being turned over is installed in the coil pipe, and the fan is fixed on the fan fixing plate.
Preferably, still be provided with in the coil and be used for the clearance the brush hair mechanism of filter screen, brush hair mechanism is including rotating the hair roller, drive rotate the drive structure that the hair roller takes place the displacement in vertical plane, filtering component includes filter screen and electrostatic precipitator, the brush hair bundle butt on the rotation hair roller in one side of filter screen.
Preferably, limit switches are mounted on a pair of side walls of the coil pipe, which are located at two ends of the screw rod, and the driving motor is controlled to rotate reversely after the rotating wool roller triggers any one of the limit switches.
Preferably, be provided with a plurality of in bank card thorn on the lateral wall of at least one side of coil pipe, it is a plurality of the card thorn with the crisscross setting in brush hair bundle interval on the rotation hair roller, just the card thorn all set up in one side that the filter screen was kept away from to the rotation hair roller, the card thorn is used for clearing up dust deposition, impurity on the rotation hair roller.
Preferably, a dust detection unit for detecting whether the filter assembly needs to be cleaned and controlling the first baffle assembly and the working state of the fan is further arranged in the coil pipe, and when the dust detection unit sends a cleaning instruction according to a detection result, the dust detection unit controls the first baffle assembly to close the air return opening, controls the fan to adjust the air supply direction and supplies air towards the air return opening.
Preferably, the dust detection unit is arranged between the return air inlet and the filtering device or between the fan and the filtering device, and is used for detecting the air pressure at the return air side of the coil pipe, and when the air pressure reaches a first preset value, the automatic cleaning filtering device is started.
Preferably, the dust detection unit is respectively arranged between the air return inlet and the filtering device and between the air outlet and the filtering device, and is used for detecting the air pressure at the air return side and the air outlet side of the coil pipe, and when the difference value of the air pressure at the two sides reaches a second preset value, the automatic cleaning and filtering device is started.
The invention also provides a control method for automatically cleaning the filtering device, wherein the automatically cleaning filtering device comprises a coil, a filtering component arranged in the coil and a cleaning mechanism for cleaning the filtering component, and the control method comprises the following steps: detecting an environmental parameter in the coiled tubing; judging whether the environmental parameters meet cleaning conditions; and if so, starting the cleaning mechanism to clean the filtering component.
Preferably, clean mechanism including the fan that can two-way air supply, with the brush hair mechanism of filter assembly butt, with the first baffle subassembly of the collection dirt pipeline of coil pipe intercommunication, the second baffle subassembly that collection dirt pipeline and coil pipe intercommunication department set up and control first baffle subassembly, second baffle subassembly and fan operating condition's dust detecting element.
Preferably, the environmental parameter is a pressure value on the left side or the right side of a filter assembly in the coil measured by the dust detection unit, or a pressure difference between the left side and the right side of the filter assembly.
Preferably, when the cleaning mechanism is started, the first baffle plate assembly is closed, and the second baffle plate assembly is opened;
the air supply direction of the axial flow fan is turned over and is changed from the direction facing the air outlet to the direction facing the air return inlet;
starting a brushing mechanism to clean the filtering component;
and after cleaning is finished, the dust detection unit sends a stop instruction, and the cleaning mechanism stops.
Preferably, the conditions to be met for cleaning completion are as follows: the dust detection unit detects that the environmental parameters in the current coil pipe meet the condition of no need of cleaning and/or the operation of the cleaning mechanism reaches a specified time.
Preferably, the filter assembly comprises a filter screen and an electrostatic precipitator, and when the cleaning mechanism is started, the electrostatic precipitator is reversely ionized; when the cleaning mechanism stops, the fan stops and reverses the air supply direction again, the brushing mechanism stops working, the second baffle plate assembly is closed, the first baffle plate assembly is opened, and the electrostatic dust collector recovers normal phase ionization.
The invention also provides an air conditioner which comprises the automatic cleaning and filtering device.
Compared with the prior art, the invention has the following beneficial effects:
1. because the dust detection unit is arranged, the accumulated dust on the filtering device in the air conditioner or the fresh air system can be automatically cleaned in time, the air circulation efficiency is favorably improved, the filtering function is ensured, and the secondary pollution to indoor and outdoor air is avoided;
2. the dust collecting pipelines and the dust collecting device are adopted, and the first movable grating and the second movable grating are matched to realize function switching among different pipelines, so that dust can be treated in a centralized manner, personnel can clean and replace the dust regularly, and the operation is convenient and simple;
3. the fan is matched with the electrostatic dust collector to realize the dust cleaning effect on the electrostatic dust collector through reverse ionization, the traditional physical wiping mode is replaced, the damage to the electrostatic dust collector is reduced, and the service life is prolonged.
Drawings
The invention is described in detail below with reference to examples and figures, in which:
FIG. 1 is a schematic structural view of the present embodiment;
FIG. 2 is an enlarged partial schematic view of FIG. 1;
fig. 3 is a processing flowchart of the present embodiment.
1. An air return opening; 2. a first movable grill; 3. a dust monitoring unit; 4. an in-line doffer; 5. a filter screen; 6. an electrostatic precipitator; 7. a fan fixing plate; 8. an axial flow fan; 9. an air outlet; 10. rotating the wool roller; 11. a limit switch; 12. a second movable grill; 13. a dust collecting duct; 14. a dust collecting device; 15. a lead screw; 16. and (4) coiling the pipe.
Detailed Description
The utility model provides an automatic clean filter equipment, its is applied to in air conditioner or new fan, filters the air, and it includes the coil pipe, sets up the air filter component in the coil pipe and can the fan of two-way air supply.
As shown in fig. 1 and 2, the two sides of the coil pipe are respectively provided with a return air inlet and an air outlet, one side of the return air inlet of the coil pipe is provided with a first baffle assembly for opening or closing the return air inlet, the fan is positioned on one side of the air outlet of the coil pipe, the filter assembly is positioned between the first baffle assembly and the fan, the lower part of the coil pipe is also communicated with a dust collecting pipeline, the dust collecting pipeline is communicated with the coil pipe between the first baffle assembly and the filter assembly, and the joint of the dust collecting pipeline and the coil pipe is provided with a second baffle assembly for opening or closing the dust collecting pipeline; the first baffle assembly and the second baffle assembly do not open or close at the same time.
In this embodiment, the axial flow fan is selected as the fan, the fan fixing plate capable of being turned over is installed in the coil pipe, the axial flow fan is fixed on the fan fixing plate, and when the fan fixing plate is turned over within the range of 180 degrees, the air supply direction of the axial flow fan can be changed between the air outlet and the air return opening. First baffle subassembly and second baffle subassembly are first movable grid and second movable grid respectively, and the junction of coil pipe and dust collecting pipe is the chamfer setting, makes things convenient for the laying dust to drop.
Specifically, as shown in fig. 1 and 2, the filter assembly includes a filter screen and an electrostatic precipitator, the electrostatic precipitator is located between the filter screen and the fan, and when the fan fixing plate receives a signal to control the fan to turn over for 180 degrees, the electrostatic precipitator is reversely ionized, and stops supplying power to the high-voltage electric field and supplies power to the electrostatic field dust collecting plate in the direction. The dust-collecting device is connected with the positive electrode, the negative electrode and the positive electrode, so that the dust-collecting electricity on the negative electrode plate moves to the positive electrode, and the dust can be blown away by the axial flow fan in the moving process, thereby completing the dust-collecting cleaning operation of the electrostatic dust collector.
On the other hand still is provided with the brush hair mechanism that is used for clean filter screen in the coil pipe, and brush hair mechanism is including rotating hair roller, drive rotate the drive structure that the hair roller takes place the displacement in vertical plane, rotate the brush hair bundle butt on the hair roller in one side of filter screen, drive structure include with rotate lead screw, the drive of hair roller threaded connection lead screw pivoted driving motor rotates hair roller itself simultaneously and also is connected with step motor, can drive and rotate the hair roller and carry out the uniform velocity rotation to the brush hair bundle can be brushed laying dust and impurity on the filter screen down, and fall to in the dust collecting pipe.
Further, in order to protect the brush hair bundle from being lost, a limit switch is installed on the side walls of the upper side and the lower side of the coil pipe, the brush hair roller is rotated to trigger any one of the limit switches to be controlled immediately after the limit switch, the driving motor rotates reversely, so that the lead screw can drive the rotating brush hair roller to perform reverse linear motion, the limit switches are arranged on the upper side and the lower side, the rotating brush hair roller can always perform vertical reciprocating linear motion along the lead screw, and the effect of repeatedly cleaning the filter screen is achieved.
Meanwhile, as shown in fig. 1 and 2, in order to timely clean some accumulated dust and impurities possibly adhered to the rotating burr, a plurality of rows of bayonet spines are further fixed on the side wall of the upper side of the coil pipe, the bayonet spines and bristle bundles on the rotating burr are arranged in a staggered mode at intervals, the bayonet spines are all arranged on one side, away from the filter screen, of the rotating burr, and are used for cleaning the accumulated dust and the impurities on the rotating burr.
Before clearing up the laying dust on filter screen and the electrostatic precipitator, first movable grid can be closed, and second movable grid then can be opened, and the dust, impurity that are cleared up down can drop and get into the dust collecting pipeline this moment, still is provided with removable dust collecting device in the dust collecting pipeline, and dust collecting device in this embodiment can be equipment such as common dust catcher among the prior art, and it can to accomplish the manual work of clearing up dust collecting device after the clearance. For convenience of mounting and dismounting, the dust collecting pipeline is arranged to be a right-angle pipeline with an opening at the upper end, and the dust collecting device is arranged at the tail end of the horizontal section.
In order to realize automatic cleaning operation, a dust detection unit for detecting whether the filter assembly needs to be cleaned and controlling the working state of the fan, the first baffle assembly and the second baffle assembly is further arranged in the coil pipe.
As shown in fig. 1 and 2, the dust detection unit is disposed between the air return opening and the filtering device, and is configured to detect a gas pressure at the air return side of the coil, and when the gas pressure reaches a first preset value, the automatic cleaning and filtering device is started. Specifically, when the air conditioner device normally starts to work, the air pressure of the return air side where the dust detection unit is located can form negative pressure, when the gear of the air conditioner device is unchanged and no dust is collected on the filter screen, the negative pressure value of the dust detection unit is the minimum value, and 150% of the value is taken as a first preset value corresponding to the gear of the dust detection unit; the first preset value of the dust detection unit can be set to a corresponding value according to the wind speed gear of the air conditioning device; the dust detection unit is through the atmospheric pressure size of detection return air side to compare with the first default of corresponding gear, when the detected value is greater than the first default of corresponding gear, the dust collection volume is more on filter screen or the electrostatic precipitator promptly, needs to open clean mode. It is of course also possible to install a dust monitoring unit between the axial fan on the return air side and the filter assembly, the monitoring method being as described above. The dust detection unit is also used for controlling the closing of the cleaning mode, when the gear of the air conditioner device is not changed and no dust is collected on the filter screen, the negative pressure value of the dust detection unit is the minimum value, so that 110% of the minimum value can be used as a reference value for closing the cleaning mode, and the reference value can be set according to actual requirements.
In another embodiment, the dust detection unit is respectively disposed between the air return opening and the filtering device, and between the air outlet opening and the filtering device, and is configured to detect air pressures at the air return side and the air outlet side of the coil, and when a difference between the air pressures at the two sides reaches a second preset value, the automatic cleaning filtering device is started. Specifically, when the gear of the air conditioner device is not changed and no dust is collected on the filter screen, the absolute value of the difference between the air pressure values detected by the left and right detection units is a fixed value, 150% of the value is used as a second preset value of the gear, and the second preset value can be set to be a corresponding value according to the wind speed gear of the air conditioner device; when the absolute value of the difference value of the gas pressure values detected by the left and right detection units is greater than a second preset value, namely the dust collection amount on the filter screen or the electrostatic dust collector is large, the cleaning mode needs to be started. The dust detection unit is also used for controlling the closing of the cleaning mode, and because the absolute value of the difference value of the air pressure values detected by the left detection unit and the right detection unit is a fixed value when the gear of the air conditioner is not changed and no dust is collected on the filter screen, 110% of the fixed value can be used as a reference value for stopping the cleaning mode, and the reference value can be set according to actual requirements.
The dust detection units in the above all adopt sensors for detecting gas pressure.
The embodiment also discloses a control method for automatically cleaning the filtering device, the automatically cleaning filtering device comprises a coil, a filtering component arranged in the coil and a cleaning mechanism for cleaning the filtering component, and the control method comprises the following steps:
detecting an environmental parameter in the coiled tubing;
judging whether the environmental parameters meet cleaning conditions;
and if so, starting the cleaning mechanism to clean the filtering component.
The cleaning mechanism comprises a fan capable of bidirectional air supply, a brushing mechanism abutted against the filtering assembly, a dust collecting pipeline communicated with the coil, a first baffle assembly arranged at the air return opening of the coil, a second baffle assembly arranged at the dust collecting pipeline and the coil, and a dust detection unit for controlling the working states of the first baffle assembly, the second baffle assembly and the fan. The environmental parameter is a pressure value on the left side or the right side of a filter assembly in the coil pipe measured by the dust detection unit, or a pressure difference on the left side and the right side of the filter assembly.
When the cleaning mechanism is started, the first baffle plate assembly is closed, and the second baffle plate assembly is opened;
the air supply direction of the axial flow fan is turned over and is changed from the direction facing the air outlet to the direction facing the air return inlet;
starting a brushing mechanism to clean the filtering component;
and after cleaning is finished, the dust detection unit sends a stop instruction, and the cleaning mechanism stops.
The conditions to be met after cleaning is completed are as follows: the dust detection unit detects that the environmental parameter in the current coil pipe meets the condition that cleaning is not needed and/or the cleaning mechanism runs for a specified time, wherein the condition that the environmental parameter meets the condition that cleaning is detected that the pressure intensity on one side or the pressure difference on two sides of the coil pipe reaches the reference value by the dust detection unit.
As shown in fig. 3, the specific steps are:
the dust detection unit detects the dust accumulation condition of the current filter assembly, compares the detected data with a preset value required to be cleaned, and closes the first baffle assembly and opens the second baffle assembly when the preset value is reached; the preset value may be the first preset value or the second preset value in the above description, and the corresponding preset value may be determined according to the specific installation manner of the dust detection unit.
The air supply direction of the axial flow fan is turned over and is changed from the direction facing the air outlet to the direction facing the air return inlet;
starting a brushing mechanism to clean the filtering component;
starting a dust collecting device, and collecting the cleaned dust and sundries by matching with an axial flow fan;
the dust detection unit detects the dust accumulation condition of the current filter assembly, compares the detected data with a preset value which does not need cleaning, and when the preset value is reached, the axial flow fan stops, the air supply direction is turned over again, and the brushing mechanism stops working; the preset value is the corresponding air pressure value when no dust or less dust is deposited on the filter assembly when the air conditioner at the current gear is in operation.
And closing the second baffle plate assembly and opening the first baffle plate assembly.
The filter assembly comprises a filter screen and an electrostatic dust collector, and the electrostatic dust collector is reversely ionized when the air supply direction of the axial flow fan is turned over; and when the axial flow fan stops and the air supply direction is turned over again, the electrostatic dust collector recovers normal-phase ionization.
In addition, the air conditioner comprises a coil and a filtering device arranged in the coil, wherein the filtering device adopts the control method to automatically clean.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (16)
1. The utility model provides an automatic cleaning and filtering device, includes the coil pipe, install in filtering component in the coil pipe, the fan that can two-wayly supply air, its characterized in that, the first baffle subassembly that switches its on-off state is installed to the return air inlet of coil pipe, and filtering component is located between first baffle subassembly and the fan, the coil pipe still communicates dust collecting pipe, dust collecting pipe and the intercommunication department of coil pipe are located between first baffle subassembly and the filtering component.
2. The automatic cleaning and filtering device of claim 1, wherein a second baffle assembly for switching the on-off state of the coil pipe is arranged at the communication position of the coil pipe and the dust collecting pipeline, and the first baffle assembly and the second baffle assembly are not opened or closed at the same time.
3. The self-cleaning filter device of claim 1, wherein a reversible fan mounting plate is mounted within the coil, the fan being mounted to the fan mounting plate.
4. The automatic cleaning and filtering device according to claim 1, wherein a brushing mechanism for cleaning the filter screen is further arranged in the coil pipe, the brushing mechanism comprises a rotating bristle roller and a driving structure for driving the rotating bristle roller to displace in a vertical plane, the filtering assembly comprises a filter screen and an electrostatic precipitator, and a brushing bundle on the rotating bristle roller abuts against one side of the filter screen.
5. The automatic cleaning and filtering device of claim 4, wherein a pair of side walls of the coil pipe at two ends of the lead screw are provided with limit switches, and the rotating bristle roller triggers any one of the limit switches to control the driving motor to rotate reversely.
6. The automatic cleaning and filtering device according to claim 5, wherein a plurality of rows of clamping thorns are arranged on at least one side wall of the coil pipe, the plurality of clamping thorns and the bristle bundles on the rotating bristle roll are arranged in a staggered manner at intervals, the clamping thorns are all arranged on one side of the rotating bristle roll away from the filter screen, and the clamping thorns are used for cleaning dust and impurities on the rotating bristle roll.
7. The automatic cleaning and filtering device of claim 1, wherein a dust detection unit for detecting whether the filtering assembly needs cleaning and controlling the first baffle assembly and the working state of the fan is further arranged in the coil pipe, and when the dust detection unit sends a cleaning instruction according to a detection result, the dust detection unit controls the first baffle assembly to close the air return opening, and controls the fan to adjust the air supply direction and supply air towards the air return opening.
8. The automatic cleaning and filtering device of claim 7, wherein the dust detecting unit is disposed between the return air inlet and the filtering device or between the blower and the filtering device, and is configured to detect a gas pressure at the return air side of the coil, and to activate the automatic cleaning and filtering device when the gas pressure reaches a first predetermined value.
9. The automatic cleaning and filtering device of claim 7, wherein the dust detecting unit is respectively disposed between the air return opening and the filtering device and between the air outlet opening and the filtering device, and is configured to detect air pressures at the air return side and the air outlet side of the coil, and when a difference between the air pressures at the two sides reaches a second predetermined value, the automatic cleaning and filtering device is activated.
10. A control method of an automatic cleaning filter device including a coil, a filter assembly installed in the coil, and a cleaning mechanism for cleaning the filter assembly, the control method comprising: detecting an environmental parameter in the coiled tubing; judging whether the environmental parameters meet cleaning conditions; and if so, starting the cleaning mechanism to clean the filtering component.
11. The control method according to claim 10, wherein the cleaning mechanism comprises a fan capable of bidirectional air supply, a brushing mechanism abutted against the filtering assembly, a dust collecting pipeline communicated with the coil pipe, a first baffle assembly arranged at an air return opening of the coil pipe, a second baffle assembly arranged at a communication part of the dust collecting pipeline and the coil pipe, and a dust detection unit for controlling the working states of the first baffle assembly, the second baffle assembly and the fan.
12. The control method of claim 11, wherein the environmental parameter is a pressure value measured by the dust detection unit on the left or right side of the filter assembly in the coil, or a pressure difference measured by the dust detection unit on the left and right sides of the filter assembly.
13. The control method according to claim 12,
when the cleaning mechanism is started, the first baffle plate assembly is closed, and the second baffle plate assembly is opened;
the air supply direction of the axial flow fan is turned over and is changed from the direction facing the air outlet to the direction facing the air return inlet;
starting a brushing mechanism to clean the filtering component;
and after cleaning is finished, the dust detection unit sends a stop instruction, and the cleaning mechanism stops.
14. The control method according to claim 13, wherein the condition to be satisfied for completion of cleaning is: the dust detection unit detects that the environmental parameters in the current coil pipe meet the condition of no need of cleaning and/or the operation of the cleaning mechanism reaches a specified time.
15. The control method of claim 14, wherein the filter assembly comprises a filter screen and an electrostatic precipitator, the electrostatic precipitator being reverse ionized when the cleaning mechanism is activated; when the cleaning mechanism stops, the fan stops and reverses the air supply direction again, the brushing mechanism stops working, the second baffle plate assembly is closed, the first baffle plate assembly is opened, and the electrostatic dust collector recovers normal phase ionization.
16. An air conditioner comprising the self-cleaning filter device as claimed in any one of claims 1 to 9.
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| CN202010956368.0A CN111947253A (en) | 2020-09-11 | 2020-09-11 | Automatic cleaning and filtering device, control method and air conditioner comprising filtering device |
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| CN202010956368.0A CN111947253A (en) | 2020-09-11 | 2020-09-11 | Automatic cleaning and filtering device, control method and air conditioner comprising filtering device |
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