CN112413811A - Dust removal device, heat exchanger, air conditioner and dust removal method of air conditioner heat exchanger - Google Patents
Dust removal device, heat exchanger, air conditioner and dust removal method of air conditioner heat exchanger Download PDFInfo
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- CN112413811A CN112413811A CN202011351976.5A CN202011351976A CN112413811A CN 112413811 A CN112413811 A CN 112413811A CN 202011351976 A CN202011351976 A CN 202011351976A CN 112413811 A CN112413811 A CN 112413811A
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- heat exchanger
- air
- dust removal
- dust
- air grid
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- 239000000428 dust Substances 0.000 title claims abstract description 117
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims description 13
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims 2
- 230000002745 absorbent Effects 0.000 claims 1
- 239000002250 absorbent Substances 0.000 claims 1
- 238000010410 dusting Methods 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 10
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000002441 reversible effect Effects 0.000 abstract description 3
- 238000009825 accumulation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G13/00—Appliances or processes not covered by groups F28G1/00 - F28G11/00; Combinations of appliances or processes covered by groups F28G1/00 - F28G11/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G15/003—Control arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/22—Cleaning ducts or apparatus
Abstract
The invention provides a dust removal device, a heat exchanger, an air conditioner and a dust removal method of the air conditioner heat exchanger, relates to the technical field of air conditioners, and solves the technical problems that manual cleaning of heat exchanger fins is time-consuming, labor-consuming and inconvenient. The dust removal device comprises an air grid structure arranged at an air inlet of the fin heat exchanger, and an ionization dust removal assembly is arranged on the air grid structure. The ionization dust removal component can be matched with the air grid structure for dust removal, so that the problem of filth blockage of the fin heat exchanger is solved, the purpose of efficient dust removal is achieved, time and labor are saved compared with the traditional mode of manually cleaning the fins of the heat exchanger, and dust removal is convenient and rapid; because the air grid structure is positioned at the air inlet of the fin heat exchanger, the accumulated dust on the dust removal device can be quickly cleaned by utilizing the airflow formed by the reverse rotation of the air conditioner fan, the automatic cleaning of the dust removal device is realized, and the service life of the dust removal device is prolonged.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a dust removal device, a heat exchanger, an air conditioner and a dust removal method of the heat exchanger of the air conditioner.
Background
The heat exchanger of the existing air conditioner is mainly in a fin form. The conventional fin spacing is about 1.6 mm, fin gaps of the heat exchanger are easily blocked by dust, catkin and the like, and particularly when the heat exchanger is installed in an environment with more dust, the heat exchanger is poor in heat dissipation due to too thick dust accumulation, so that the energy consumption of an air conditioner is increased, and the reliable operation of components such as a compressor is even influenced. The manual cleaning of the heat exchanger fins is time-consuming, labor-consuming and inconvenient.
The existing ionization dust removal device cannot be applied to dust removal of a heat exchanger due to the limitation of the structural form, and the ionization dust removal device also needs to be cleaned regularly, so that the maintenance cost is high.
Disclosure of Invention
The invention aims to provide a dust removal device, a heat exchanger, an air conditioner and a dust removal method of the air conditioner heat exchanger, and aims to solve the technical problems that time and labor are consumed and the heat exchanger fins are inconvenient to clean manually in the prior art. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a dust removal device which comprises an air grid structure arranged at an air inlet of a fin heat exchanger, wherein an ionization dust removal assembly is arranged on the air grid structure, and the ionization dust removal assembly can be matched with the air grid structure for dust removal.
Optionally, the air grid structure comprises a plurality of air grid blades, and the plurality of air grid blades are pivoted at the air inlet of the fin heat exchanger at intervals.
Optionally, the ionization dust removal assemblies on two adjacent air grid blades form an electric dust removal unit.
Optionally, the ionization dust removal assembly comprises a mesh electrode plate, a fixed electrode plate and a needle electrode, the mesh electrode plate is arranged on the lower side of the air grid blade, the fixed electrode plate is arranged on the upper side of the air grid blade, and the needle electrode is arranged on the fixed electrode plate.
Optionally, the needle electrodes are arranged in a zigzag pattern.
Optionally, the tips of the needle electrodes are at the same height.
Optionally, the fixed electrode plate is of a non-hollow design, and the gap between the needle electrodes is coated with an adsorption material.
Optionally, the air grid structure includes a transmission device, and the plurality of air grid blades are connected to the driver through the transmission device in a transmission manner, so that the plurality of air grid blades can rotate synchronously.
The invention provides a heat exchanger which comprises the dust removal device.
The invention provides an air conditioner which comprises a fan and the heat exchanger.
The invention provides a dust removal method of an air conditioner heat exchanger, which is used for removing dust of the heat exchanger and comprises the following steps:
s1, judging the air index;
s2, determining the dedusting grade;
and S3, controlling a dust removal device.
Optionally, the step S1 includes receiving weather forecast information, determining whether sand storm exists or not, determining a wind power level, determining a PM2.5 index, determining air relative humidity, and determining an air index according to weather parameters.
Optionally, the S2 includes determining the dust removal level according to the operation condition of the air conditioner and the air index.
Optionally, the S3 includes a switch for controlling the angle of the air grid blade and/or the ionization dust removing device according to the dust removing grade.
According to the dust removal device provided by the invention, the air grid structure at the air inlet of the fin heat exchanger is provided with the ionization dust removal assembly, and the ionization dust removal assembly can be matched with the air grid structure for dust removal, so that the problem of dirt blockage of the fin heat exchanger is solved, the high-efficiency dust removal effect is achieved, and compared with the traditional mode of manually cleaning the fins of the heat exchanger, the dust removal device is time-saving and labor-saving, and is convenient and rapid in dust removal; because the air grid structure is positioned at the air inlet of the fin heat exchanger, the accumulated dust on the dust removal device can be quickly cleaned by utilizing the airflow formed by the reverse rotation of the air conditioner fan, the automatic cleaning of the dust removal device is realized, and the service life of the dust removal device is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic side view of a dust removing apparatus according to an embodiment of the present invention, in which arrows indicate air intake directions;
FIG. 2 is a schematic structural diagram of an air grid structure according to an embodiment of the present invention;
FIG. 3 is a schematic view of the wind fence angle of the wind fence blade;
FIG. 4 is a schematic perspective view of a dust removing apparatus according to an embodiment of the present invention;
FIG. 5 is a schematic perspective view of a dust removing apparatus for removing screen electrode plates according to an embodiment of the present invention;
fig. 6 is a control flowchart of a dust removing method for an air conditioner heat exchanger according to an embodiment of the present invention.
In the figure 1, a wind grid blade; 2. an ionization dust removal component; 21. a grid electrode plate; 22. fixing the polar plate; 23. a needle electrode; 3. a transmission device; 4. a condenser.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
As shown in figure 1, the invention provides a dust removal device which comprises an air grid structure arranged at an air inlet of a fin heat exchanger, wherein an ionization dust removal component 2 is arranged on the air grid structure, and the ionization dust removal component 2 can be matched with the air grid structure for dust removal.
The air grid structure at the air inlet of the fin heat exchanger is provided with the ionization dust removal component 2, and the ionization dust removal component 2 can be matched with the air grid structure for dust removal, so that the problem of dirt blockage of the fin heat exchanger is solved, the efficient dust removal effect is achieved, and compared with the traditional manual heat exchanger fin cleaning mode, the method is time-saving and labor-saving, and the dust removal is convenient and rapid; because the air grid structure is positioned at the air inlet of the fin heat exchanger, the accumulated dust on the dust removal device can be quickly cleaned by utilizing the airflow formed by the reverse rotation of the air conditioner fan, the automatic cleaning of the dust removal device is realized, and the service life of the dust removal device is prolonged.
As an alternative embodiment, as shown in fig. 1 and 2, the air grid structure includes a plurality of air grid blades 1, and the plurality of air grid blades 1 are pivoted at the air inlet of the fin heat exchanger at intervals. Under the drive of the transmission device 3, the plurality of air grid blades 1 rotate around the pivot shaft thereof to form different air grid angles, so that the opening degree of the air grid blades 1 can be conveniently controlled according to weather conditions and the running conditions of the air conditioner.
As an alternative embodiment, the ionization dust removal assemblies 2 on two adjacent air grid blades 1 form an electric dust removal unit, and the space between the upper and lower adjacent air grid blades 1 is used as an ionization space, so that dust in the air flow passing through the space is ionized and removed. The ionization dust removal unit covers the air inlet area of the fin heat exchanger, and dust is effectively removed.
As an alternative embodiment, as shown in fig. 4 and 5, the ionization and dust removal assembly 2 includes a mesh electrode plate 21, a fixed electrode plate 22 and a needle electrode 23, the mesh electrode plate 21 is disposed at the lower side of the wind grid leaf 1, the fixed electrode plate 22 is disposed at the upper side of the wind grid leaf 1, and the needle electrode 23 is mounted on the fixed electrode plate 22.
The grid electrode plate 21 is installed on the upper air grid leaf 1, the fixed electrode plate 22 is installed on the lower air grid, the needle-shaped electrodes 23 are installed on the fixed electrode plate 22, the needle points of the needle-shaped electrodes 23 are at the same height, the needle-shaped electrode plates are in a shape of Chinese character hui, the fixed electrode plate 22 is in a non-hollow design, and adsorbing materials are coated in gaps among the needle-shaped electrodes 23. And the voltage access module is connected with the pin electrode plate and the grid electrode plate 21 on the air grid bracket. The ionization dust removal assembly 2 ionizes air, so that negative ions and free electrons formed in the space between the upper air grid blade 1 and the lower air grid blade 1 are adsorbed on the surface of dust particles in the movement process, and the charged particles impact on the grid electrode plate 21 under the action of deflection voltage.
As an alternative embodiment, as shown in fig. 5, the needle electrodes 23 are arranged in a zigzag manner, and the zigzag manner increases the number of the needle electrodes 23, increases the ionization area, and facilitates the serial design of the power lines.
As an alternative embodiment, the tips of the needle electrodes 23 are at the same height, ensuring uniformity of ionization.
As an optional embodiment, the air grid structure comprises a transmission device 3, the plurality of air grid blades 1 are in transmission connection with the driver through the transmission device 3, synchronous rotation of the plurality of air grid blades 1 can be achieved, and synchronous control is facilitated.
In this embodiment, the driver is a motor, and the transmission device 3 is a gear belt transmission mechanism.
The invention also provides a heat exchanger which comprises any one of the dust removing devices.
The invention also provides an air conditioner which comprises a fan, a compressor, a condenser 4 and the heat exchanger.
The invention also provides a dust removal method of the air conditioner heat exchanger, which comprises the following steps:
s1, judging the air index;
s2, determining the dedusting grade;
and S3, controlling a dust removal device.
Wherein, S1 includes receiving weather forecast information, judging whether sand blown by the wind and catkin exist, judging wind power level, judging PM2.5 index, judging air relative humidity, and determining air index according to weather parameters.
S2 includes determining the dust removal level based on the operation condition of the air conditioner and the air index.
S3 includes controlling the angle of the air grid blade 1 and/or the switch of the ionization dust removing device according to the dust removing grade.
Specifically, fig. 6 shows a dust removal control flow of the air conditioner heat exchanger, which is controlled according to different operating states of the air conditioner:
1. air conditioner standby state
In the standby state of the air conditioner, the dustproof grade 1 is the highest, the angle of the air grid is 0 degrees, the air grid blade 1 is closed, the ionization dust removal component 2 is closed, and dust is removed through the air grid structure; namely, when the air grid blade 1 is opened at a certain angle, some dirt carried by the inlet air can be blocked, and a certain blocking effect is achieved.
2. Air conditioner on state
The air inlet direction of the heat exchanger is as shown in figure 1, when the heat exchanger is started for the first time, the opening angle of the air grid blade 1 is default to 50 degrees, the ionization dust removal component 2 is closed, and the control is carried out according to the following table after Tmin; (Tmin: dust-removing device has an initialization time requirement, the time of the unit operates smoothly, and then the environmental condition is detected)
Receiving local weather conditions through a signal receiving device on the unit, and judging an air index according to the condition of a table I;
and secondly, when the opening angle of the air grid is small, the dustproof effect is good, but the air inlet quantity of the heat exchanger of the air conditioner is influenced to a certain extent, and meanwhile, when the capacity requirement of the air conditioner is high, the frequency of a fan of the heat exchanger of the outdoor unit is higher, the air inlet quantity of the heat exchanger is increased, and the risk that dust and floccules are attached to the heat exchanger is higher. As shown in table two, the normal operation of the air conditioner is preferentially ensured, and the comfort of the user is improved;
thirdly, determining whether the air grid angle F of the dustproof device and the ionization device are opened or not according to the dust removal grade, as shown in the table III; the wind grid angle F is seen in fig. 3.
The environment and the operation load of the air conditioner are periodically detected, the default period is 2 hours, and the reliability of the dust removal device is improved through periodic control;
a first table:
table two:
table three:
| dust class | 1 | 2 | 3 | 4 | 5 |
| Angle of air grid | 0° | 30° | 50° | 75° | 90° |
| Ionization dust removal | Close off | Close off | Close off | Is opened | Is opened |
3. Off state of air conditioner
When the air conditioner receives a closing instruction, when the continuous operation time of the air conditioner is detected to be larger than Th (Th, after the unit operates for a period of time, dust accumulation exists in the air grid blades 1 and the ionization dust removal component 2, the dust accumulation degree is judged according to the operation time, whether cleaning is needed or not is determined), the air grid angle is adjusted to be 50 degrees of the default angle, the ionization dust removal component 2 is closed, the fan of the air conditioner reversely rotates to run tmin (tmin, the dust accumulation degree is determined according to the operation time, how long the fan operates can be calculated, cleaning can be completed), the time T and the T values can be set to be different values according to the difference of the air conditioner), the wind direction is opposite to that of the air conditioner in the figure 1 after the fan reversely rotates, dust accumulated on the air.
In the description of the invention, it is to be noted that "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (14)
1. The dust removal device is characterized by comprising an air grid structure arranged at an air inlet of a fin heat exchanger, wherein an ionization dust removal assembly (2) is arranged on the air grid structure, and the ionization dust removal assembly can be matched with the air grid structure to remove dust.
2. A dust-collecting equipment according to claim 1, characterized in that the air grid structure comprises a plurality of air grid blades (1), and the air grid blades (1) are pivoted at the air inlet of the fin-type heat exchanger at intervals.
3. A dust removing device according to claim 2, characterized in that the ionizing dust removing assemblies (2) on two adjacent air grid blades (1) form an electric dust removing unit.
4. A dust removing apparatus according to claim 2, wherein the ionizing dust removing assembly (2) comprises a mesh electrode plate (21), a fixed electrode plate (22) and a needle electrode (23), the mesh electrode plate (21) is disposed at the lower side of the air grid blade (1), the fixed electrode plate (22) is disposed at the upper side of the air grid blade (1), and the needle electrode (23) is mounted on the fixed electrode plate (22).
5. A dust-extraction apparatus as claimed in claim 4, wherein the needle-like electrodes (23) are arranged in a zigzag pattern.
6. A dusting device according to claim 4, characterized in that the tips of the needle electrodes (23) are at the same height.
7. A dust-extraction apparatus as claimed in claim 4, characterised in that the stationary plate (22) is of a non-hollow design, and the spaces between the needle-like electrodes (23) are coated with an absorbent material.
8. A dust-collecting equipment according to claim 2, characterized in that said air grid structure comprises a transmission device (3), a plurality of said air grid blades (1) are connected to a driver through said transmission device (3) in a transmission manner, and the synchronous rotation of said air grid blades (1) can be realized.
9. A heat exchanger, characterized by comprising the dust removing device as recited in any one of claims 1 to 8.
10. An air conditioner comprising a fan and the heat exchanger of claim 9.
11. A dust removing method of an air conditioner heat exchanger for removing dust of the heat exchanger according to claim 9, characterized by comprising the steps of:
s1, judging the air index;
s2, determining the dedusting grade;
and S3, controlling a dust removal device.
12. The method for removing dust from a heat exchanger of an air conditioner as claimed in claim 11, wherein said S1 comprises receiving weather forecast information, determining presence or absence of sand blown by the wind and catkin, determining wind power level, determining PM2.5 index, determining relative humidity of the air, and determining the air index according to weather parameters.
13. The method for removing dust in a heat exchanger of an air conditioner according to claim 11, wherein the S2 includes determining a dust removal level according to an operation condition of the air conditioner and an air index.
14. The method for removing dust of a heat exchanger of an air conditioner according to claim 11, wherein the S3 includes controlling the angle of the air grid blade and/or the switch of the ionization dust removing device according to the dust removing grade.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011351976.5A CN112413811A (en) | 2020-11-26 | 2020-11-26 | Dust removal device, heat exchanger, air conditioner and dust removal method of air conditioner heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011351976.5A CN112413811A (en) | 2020-11-26 | 2020-11-26 | Dust removal device, heat exchanger, air conditioner and dust removal method of air conditioner heat exchanger |
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| CN108692370A (en) * | 2018-05-31 | 2018-10-23 | 珠海格力电器股份有限公司 | Air conditioner |
| CN208579410U (en) * | 2018-05-31 | 2019-03-05 | 珠海格力电器股份有限公司 | Air conditioner |
| CN208750844U (en) * | 2018-06-12 | 2019-04-16 | 芜湖美智空调设备有限公司 | Air conditioner |
| KR102077730B1 (en) * | 2019-01-11 | 2020-02-14 | 두산중공업 주식회사 | Air Cooled Condenser Having Dust Collecting Member |
| CN109855228A (en) * | 2019-02-28 | 2019-06-07 | 珠海格力电器股份有限公司 | Air-conditioning self cleaning method, device, system, computer equipment and storage medium |
| CN110260455A (en) * | 2019-06-12 | 2019-09-20 | 珠海格力电器股份有限公司 | Air-conditioner set dedusting control method and device |
| CN111023325A (en) * | 2019-11-22 | 2020-04-17 | 珠海格力电器股份有限公司 | Air conditioner condenser self-cleaning system, control method and air conditioner |
| CN213955580U (en) * | 2020-11-26 | 2021-08-13 | 珠海格力电器股份有限公司 | Dust collector, heat exchanger and air conditioner |
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