CN114110693B - Range hood cleaning system and automatic cleaning method - Google Patents
Range hood cleaning system and automatic cleaning method Download PDFInfo
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- CN114110693B CN114110693B CN202111471551.2A CN202111471551A CN114110693B CN 114110693 B CN114110693 B CN 114110693B CN 202111471551 A CN202111471551 A CN 202111471551A CN 114110693 B CN114110693 B CN 114110693B
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- foam
- spray head
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- 238000004140 cleaning Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000006260 foam Substances 0.000 claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000007921 spray Substances 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 239000012459 cleaning agent Substances 0.000 claims description 15
- 230000009471 action Effects 0.000 claims description 8
- 230000005484 gravity Effects 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 238000002156 mixing Methods 0.000 description 7
- 238000005187 foaming Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2057—Removing cooking fumes using a cleaning liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2028—Removing cooking fumes using an air curtain
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a cleaning system and a cleaning method of a range hood, wherein the cleaning system comprises a water box, a foam pump, a spray head, a water pipe, a volute, an impeller and a motor, wherein the water box is fixed on a shell of the range hood, the lower part of the water box is provided with an outlet which is connected with the water pipe, and the other end of the water pipe is connected with the water pump; the motor is arranged on the volute, the impeller is fixed on a shaft at the upper part of the motor, and the motor is characterized in that the volute is obliquely fixed on the shell of the range hood; the water pump is a gas-liquid double-inlet foam pump, the water pump is fixed on the volute through a foam pump fixing frame, the spray head is a section of hollow bent pipe, the spray head is aligned to the root of the impeller blade, and the inner diameter is 2-2.5mm. The invention has the advantages of small volume, low failure rate and good cleaning effect.
Description
Technical Field
The invention relates to the field of range hoods, in particular to a cleaning system with a self-cleaning function for a range hood.
Background
A range hood is a household appliance for exhausting cooking fumes generated on a cooking bench, and in recent years, a cleaning function of the range hood is gradually paid attention to by a user, and a range hood with various cleaning functions is also gradually appeared on the market. The main stream technology in the market at present uses water as a medium to clean the interior of the range hood in a direct cleaning or heating, atomizing and other modes; or the internal volute, the impeller and other parts are heated to melt the greasy dirt and then flow down along the surface.
The cleaning structure using water as a medium generally has large usage amount, and oil stains are adsorbed on the surface because of strong adhesive force, so that the cleaning structure is difficult to clean; the cleaning is carried out in a heating mode, a heating device is required to be installed, once the fire hazard exists due to faults, the greasy dirt still can be adsorbed on the surface after being melted, and the greasy dirt is difficult to clean. The cleaning function is used, because the water consumption is relatively large, the operation steps of a user are complicated, and the user needs to disassemble and assemble the oil cup, replace the collecting device, pour cleaning liquid and the like, so that actions other than the use are added to the user.
In the prior art, the range hood which is automatically cleaned by adopting the foam is also available, the contact time between the foam and the surface to be cleaned can be prolonged, and the contact tension between the foam and the surface to be cleaned is large, so that the foam is favorable for infiltration decomposition and further cleaning of greasy dirt on the surface of the surface to be cleaned. For example, the chinese patent application No. CN 201711344668.8, the application publication No. CN 109931639, the application date 2017.12.15, and the application publication date 2019.06.25 relate to a range hood with a self-cleaning function, which includes a housing, a fan, a foaming seat, a first liquid guiding tube, a second liquid guiding tube, a third liquid guiding tube, and a driving member, the foaming seat is hollow to form a mixing cavity, the first liquid guiding tube has a first port for supplying water and inputting, the second port of the first liquid guiding tube is communicated with the mixing cavity of the foaming seat, the second liquid guiding tube has a first port for supplying detergent and inputting, the second port of the second liquid guiding tube is connected with the mixing cavity of the foaming seat, the first port of the third liquid guiding tube is connected with an output port of the mixing cavity, and the second port of the third liquid guiding tube extends into the fan. The water flow is sprayed into the mixing cavity of the foaming seat through the first liquid guide pipe, atomization occurs to a certain extent, negative pressure is generated in the mixing cavity, the detergent is sucked into the mixing cavity through the second liquid guide pipe and mixed with the water flow to form a cleaning medium with foam, the foam can prolong the contact time with the inner surface of the fan, the oil stain is emulsified, and the cleaning effect is improved.
Although the automatic cleaning can be performed, the cleaning effect cannot meet the ideal requirement due to the fact that the cleaning medium is not matched with the position and the angle in the fan or even the rotating speed of the fan impeller.
The foregoing is provided merely for the purpose of facilitating an understanding of the present invention and is not intended to constitute an admission that the entire contents of the foregoing are prior art.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a cleaning system of a range hood, which has small volume, low cost and good cleaning effect.
The invention also aims to provide an automatic cleaning method of the range hood with the above effects.
In order to achieve the above purpose, the invention adopts the following technical scheme.
A cleaning system of a range hood comprises a water box, a foam pump, a spray head, a water pipe, a volute, an impeller and a motor, wherein the water box is fixed on a shell of the range hood, the lower part of the water box is provided with an outlet which is connected with the water pipe, and the other end of the water pipe is connected with the water pump; the motor is arranged on the volute, the impeller is fixed on a shaft at the upper part of the motor, and the motor is characterized in that the volute is obliquely fixed on the shell of the range hood; the water pump is a gas-liquid double-inlet foam pump, the water pump is fixed on the volute through a foam pump fixing frame, the spray head is a section of hollow bent pipe, the spray head is aligned to the root of the impeller blade, and the inner diameter is 2-2.5mm.
As a further explanation of the scheme, the spray head is fixed on the volute or the sheet metal part in the range hood by the spray head bracket, and the distance between the outlet of the spray head and the bottom of the impeller is 1-100 mm.
Further, the water outlet end in the cavity of the foam pump is provided with a reticular small hole structure, the diameter of the small hole is 0.7-0.9mm, the optimal diameter of the small hole is 0.8mm, and the interval is 1.1mm.
Further, the impeller axis is inclined at an angle of 30 DEG + -5 to the horizontal. Preferably 30 degrees, and the optimal rotating speed of the impeller is 60+/-5 r/min by combining the angle and the small hole size of the spray head.
The invention also provides an automatic cleaning method adopting the cleaning system, which is characterized by comprising the following steps of.
S1, after the user uses the range hood for 10-20 hours, automatically starting a cleaning function after the range hood is closed.
S2, after the cleaning function is started, the motor is electrified for 0.3S and is powered off for 5S to run for a period; at this time, the motor drives the impeller to rotate, so that the impeller has an initial speed of 60r/min.
S3, the motor is operated for 35S by taking 0.2S of power on and 5S of power off as a period, and the water pump is operated for 35S simultaneously; at this time, the foam pump sucks gas and liquid into the interior to be converted into foam, and flows out from the outlet along the pipeline in a foam state, and is sprayed out from the spray head; the motor periodically rotates at the moment, the average rotating speed is 60r/min, the impeller is driven to rotate at the same speed, and the motor is uniformly sprayed on the root of the impeller blade.
S4, stopping the water pump, and running the motor for 80S by taking 0.2S of power on and 5S of power off as a period; the foam is condensed at the root of the impeller, starts to slide along the root of the blade under the action of centrifugal force and gravity, and washes the blade of the whole impeller during the period, so that the greasy dirt is dissolved and adsorbed in the foam.
S5, the motor runs at a high speed for 60 seconds in quick-frying gear; at this time, the remaining liquid mixture is thrown out, and the remaining cleaning agent is washed from the inside of the volute, and finally flows into the oil cup along the inner wall.
S6, automatic shutdown is performed.
The invention has the beneficial effects that.
The invention has simple structure and does not need excessive structure supporting function; the water is not needed to be used as a main cleaning medium, the solvent required by cleaning is less, and the consumption of the solvent is 30ml each time; the user experience is good, other parts are not required to be disassembled and assembled each time the cleaning function is used, and only the cleaning agent is required to be added regularly; the volume is small, the installation position is not limited, and the failure rate is low.
The parameters adopted by the invention can lead the cleaning to achieve the best effect.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a cleaning system according to an embodiment of the present invention.
Fig. 2 to 3 are schematic structural views of a foam pump according to an embodiment of the present invention.
Fig. 4-5 are schematic views of the mesh orifice structure of the foam pump.
Fig. 6 to 7 are views showing inclined states in a normal installation state of the impeller.
Fig. 8 is a state diagram of an option for two blades.
Wherein:
Detailed Description
The following describes the specific embodiments of the present invention further, so that the technical scheme and the beneficial effects of the present invention are more clear and definite. The embodiments described below are exemplary and are intended to illustrate the present invention and should not be construed as limiting the invention.
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout.
Examples
As shown in figure 1, the cleaning system of the range hood mainly comprises a foam pump 3, a spray head 6, a water box 1, a volute 7, an impeller 11, a motor 10, a water pipe 4 and other core components; the shell 9 of the range hood is a sheet metal part outside the range hood and comprises, but is not limited to, a front plate, a rear plate, a left side plate and a right side plate, and the volute 7 is obliquely fixed on the shell 9 of the range hood; the motor 10 is arranged on the volute, the impeller 11 is fixed on a shaft at the upper part of the motor, and the impeller can rotate in the volute together with the motor under the drive of the motor; the water box 1 is fixed on the shell of the range hood and has the main functions of containing cleaning agent for cleaning, the lower part of the water box is provided with an outlet which is connected with the water pipe 4, and the other end of the water pipe 4 is connected with the water pump 3; as shown in fig. 2 and 3, the water pump 3 is a gas-liquid double-inlet foam pump, and is fixed on the volute 7 through the foam pump fixing frame 2, in the working state, the liquid inlet end 3.3 of the foam pump sucks liquid, the gas inlet end 3.1 sucks gas, the gas and the liquid are fully mixed in the pump and pass through the inner net-shaped small holes 3.4 structure, as shown in fig. 4 and 5, the diameter of the small holes 3.4 is 0.8mm, and the interval is 1.1mm; the pore diameter of the small pores 3.4 influences the quality of the foam, the larger the pore diameter of the small pores 3.4 is, the smaller the mixed liquid resistance is, and the larger the diameter of the foam is, the smaller the diameter of the foam is required, the contact area with oil stains can be increased, and the foam is fully dissolved. As the surface tension of water is weakened by the surfactant in the cleaning agent, tiny foam is formed by the cleaning agent and air when the cleaning agent passes through the mesh-shaped small holes 3.4, and the cleaning agent and the air flow out from the outlet 3.2; the water flows into the spray head 6 through the water pipe 3, the spray head 6 is a section of hollow bent pipe, the guide effect is realized, the inner diameter is 2-2.5mm, the inner diameter also influences the foam quality, the foam is transported through the guide pipe, partial foam in the middle is broken and fused, the foam with larger diameter is formed, the caliber of the guide pipe from the spray head is suddenly reduced, the larger foam is split into smaller foam or broken, the diameter of the foam output from the spray head is secondarily ensured to be smaller, and the density is higher. The nozzle 6 is fixed on the volute 7 by the nozzle bracket 5, and foam is sprayed on the root C of the blade of the impeller 11 under the guiding action of the nozzle 6.
Fig. 6 and 7 show the impeller in a mounted state, the axis and the horizontal plane are 30 degrees, fig. 8 shows two blade state diagrams on the pitch impeller, and A, B shows two adjacent blades of the impeller. The nozzle is aligned with the root C of the blade, when the foam is sprayed out, the falling point is arranged at the root C of the blade, and the volute is obliquely arranged in the smoke machine, so that the foam has a tendency of dripping downwards under the action of gravity, but does not drip under the action of centrifugal force caused by rotation of the impeller, and is changed into a state of slowly sliding from the root C of the blade to the top D of the blade, and part of the foam is broken during the process, fully contacts and disintegrates oil stains on the blade and is adsorbed by the flowing foam until the whole blade is cleaned. Because the foam has viscosity, the foam fills the gap between the blade A and the blade B when being piled up at the bottom of the blade, and cleans the whole front and back surfaces of the blade when sliding, thereby realizing comprehensive cleaning. After the cleaning is completed, the cleaning liquid flows into the oil cup 8. When the inclination angle is too small, the distance from the bottom to the top D of the blade is relatively short, the gravity effect is relatively weak, foam hardly slides, and the cleaning of the whole blade cannot be completed; when inclination is too big, gravity action is too strong, needs to increase the rotational speed and guarantees that the foam can not the vertical whereabouts, and the rotational speed is too fast and leads to melting the cleaning solution and can not fully dissolve greasy dirt just get rid of the impeller, and cleaning effect is discounted greatly.
The cleaning function of the range hood of the control system comprises the following steps.
1. After the user uses the range hood for 10-20 hours, the cleaning function is automatically started after the range hood is closed.
2. After the cleaning function is started, the motor is electrified for 0.3s and is de-electrified for 5s to run for one period. At this time, the motor drives the impeller to rotate, so that the impeller has an initial speed of about 60r/min.
3. The motor runs for 35s with the power on 0.2s and the power off 5s as the period, and the water pump runs for 35s simultaneously. At this time, the foam pump sucks gas and liquid into the interior to be converted into foam, and flows out from the outlet along the pipeline in a foam state, and is sprayed out from the spray head; the motor periodically rotates at the moment, the average rotating speed is 60r/min, the impeller is driven to rotate at the same speed, and the motor is uniformly sprayed on the root C of the impeller blade.
4. The water pump stops working, and the motor runs for 80s with the power on 0.2s and the power off 5s as the period. The foam is condensed at the impeller root C, begins to slide along the impeller root C under the action of centrifugal force and gravity, and washes the blades of the whole impeller during the process, so that the greasy dirt is dissolved and adsorbed in the foam.
5. The motor is operated at a high speed (quick-fry) gear for 60s. At this time, the remaining liquid mixture is thrown out, and the remaining cleaning agent is washed from the inside of the volute, and finally flows into the oil cup along the inner wall.
6. And (5) automatically shutting down.
The control system of the invention solves the problem that the user needs to frequently operate pain points when using the cleaning function from the user's perspective, does not need to touch any key, does not need to replace and clean any structure, and does not need to wait for the operation of programs and structures; in terms of structure, the components of the control system are simpler in composition, have no other redundant structure and smaller in volume, and ensure low barrier rate and installability; from the aspect of functions, the control system completes the processes of changing the form of the cleaning agent, uniformly covering the whole impeller, dissolving and degreasing the impeller and completely spin-drying the impeller, ensures that the whole blade of the impeller can be fully contacted with the cleaning agent in the cleaning process, and can truly remove the oil stains on the impeller.
In the embodiment, the diameter of the small holes 3.4 can be 0.7-0.9mm, so that the fineness of the foam can be ensured, the bearing resistance of the mixed solution can not be too large, and the final outlet speed can be ensured; the inclination angle of the impeller is 30 degrees, so that the foam can be ensured to sufficiently and completely clean the whole blade; the spray head is made of stainless steel or plastic, so that the structure is prevented from being corroded and deformed by the cleaning agent.
The spray head is aligned with the root C of the blade, so that the blade can be ensured to be cleaned from beginning to end; the rotating speed of the impeller is 60+/-5 r/min, so that the cleaning liquid can be ensured not to drop and the foam can smoothly slide down; the used cleaning agent adopts weak alkalinity, and can effectively remove greasy dirt.
In addition, in an embodiment, the spray head can be fixed at a circle of positions around the periphery of the volute; the fixing range of the water pump is not only limited by the volute, but also can be fixed on a sheet metal part in the smoke machine; the nozzle support and the nozzle can be made into an integrated structure (made into one part); the position of the water box is not limited, and the water box can also be made into an embedded type; the length of the spray head is variable, and the distance between the outlet of the spray head and the bottom of the impeller is 1-100 mm.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact by another feature therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms should not be understood as necessarily being directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that changes, modifications, substitutions and variations may be made therein by those of ordinary skill in the art without departing from the scope of the invention, which is defined by the appended claims and their equivalents. The portions of the detailed description that are not presented are all prior art or common general knowledge.
Claims (7)
1. A cleaning system of a range hood comprises a water box, a foam pump, a spray head, a water pipe, a volute, an impeller and a motor, wherein the water box is fixed on a shell of the range hood, the lower part of the water box is provided with an outlet which is connected with the water pipe, and the other end of the water pipe is connected with the water pump; the motor is arranged on the volute, the impeller is fixed on a shaft at the upper part of the motor, and the motor is characterized in that the volute is obliquely fixed on the shell of the range hood; the water pump is a gas-liquid double-inlet foam pump, the water pump is fixed on the volute through a foam pump fixing frame, the spray head is a section of hollow bent pipe, the spray head is aligned to the root of the impeller blade, and the inner diameter is 2-2.5mm;
the spray head is fixed on the volute or the sheet metal part in the range hood by a spray head bracket, and the distance between the outlet of the spray head and the bottom of the impeller is 1-100 mm;
the water outlet end in the cavity of the foam pump is provided with a reticular small pore structure, and the diameter of the small pore is 0.7-0.9mm;
the inclination angle of the impeller axis and the horizontal plane is 30 degrees plus or minus 5 degrees.
2. The range hood cleaning system of claim 1, wherein the apertures have a diameter of 0.8mm and a spacing of 1.1mm.
3. The range hood cleaning system of claim 1, wherein the angle of inclination is 30 °.
4. A range hood cleaning system according to claim 3, wherein the impeller speed is 60r/min.
5. The range hood cleaning system of claim 1, wherein the spray head material is stainless steel or plastic and the cleaning agent used in the water box is a weak alkaline cleaning agent.
6. The range hood cleaning system of claim 1, wherein the spray head bracket and the spray head are of an integral structure, and the water box is installed in an embedded manner.
7. An automatic cleaning method using the cleaning system according to any one of claims 1 to 6, characterized by comprising the steps of:
s1, after a user uses the range hood for 10-20 hours, automatically starting a cleaning function after the range hood is closed;
s2, after the cleaning function is started, the motor is electrified for 0.3S and is powered off for 5S to run for a period; at the moment, the motor drives the impeller to rotate, so that the impeller has an initial speed of 60r/min;
s3, the motor is operated for 35S by taking 0.2S of power on and 5S of power off as a period, and the water pump is operated for 35S simultaneously; at this time, the foam pump sucks gas and liquid into the interior to be converted into foam, and flows out from the outlet along the pipeline in a foam state, and is sprayed out from the spray head; the motor periodically rotates at the moment, the average rotating speed is 60r/min, the impeller is driven to rotate at the same speed, and the motor is uniformly sprayed on the root of the impeller blade;
s4, stopping the water pump, and running the motor for 80S by taking 0.2S of power on and 5S of power off as a period; the foam is condensed at the root of the impeller, and starts to slide along the root of the blade under the action of centrifugal force and gravity, and the blade of the whole impeller is cleaned during the period, so that the greasy dirt is dissolved and adsorbed in the foam;
s5, the motor runs at a high speed for 60 seconds in quick-frying gear; at the moment, the residual liquid mixture is thrown out, the residual cleaning agent is cleaned from the inside of the volute, and finally flows into the oil cup along the inner wall;
s6, automatic shutdown is performed.
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| CN202111471551.2A CN114110693B (en) | 2021-12-01 | 2021-12-01 | Range hood cleaning system and automatic cleaning method |
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| CN202111471551.2A CN114110693B (en) | 2021-12-01 | 2021-12-01 | Range hood cleaning system and automatic cleaning method |
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