CN117906176A - Air duct system, cleaning method and integrated stove - Google Patents

Abstract

The invention discloses an air duct system, a cleaning method and an integrated kitchen range, and relates to the field of household appliances and kitchen ware. The air duct system comprises an impeller and a volute surrounding the impeller, the air duct system further comprises a washing device, the washing device comprises a liquid collecting part, a liquid inlet component connected with the liquid collecting part and a liquid outlet component connected with the liquid collecting part, the volute is provided with an injection part aligned with the impeller and a liquid guide port used for guiding liquid in the volute into the liquid collecting part, the liquid inlet component is used for conveying washing liquid to the liquid collecting part, and the liquid outlet component can spray and clean the washing liquid in the liquid collecting part towards the impeller through the injection part. Can promote the abluent convenience of impeller through washing device, promote the cleaning performance to the impeller.

Description

Air duct system, cleaning method and integrated stove

Technical Field

The application relates to the technical field of kitchen ware, in particular to an air duct system, a cleaning method and an integrated kitchen range.

Background

The inside air duct system of traditional integrated kitchen is more greasy dirt of gathering easily after using a period, and the greasy dirt mainly gathers in impeller blade inboard, and the time after a long time causes smoking effect variation easily, and the noise increases, and the impeller hardly washs, especially the blade inboard, and the space is narrow and small, relies on manual difficult washing and causes the damage to the spare part easily.

Disclosure of Invention

In a first aspect, the present application provides an air duct system for improving the cleaning ability of an impeller.

The following technical scheme is adopted: the utility model provides an air duct system, includes the impeller, centers on the spiral case of impeller, air duct system still includes washing device, washing device includes liquid collecting part, the feed liquor subassembly of being connected with liquid collecting part, the play liquid subassembly of being connected with liquid collecting part, the spiral case is provided with the injection portion of aiming at the impeller and is used for leading-in liquid of spiral case in the liquid guide mouth of liquid collecting part, the feed liquor subassembly is used for carrying the washing liquid to liquid collecting part, play liquid subassembly can pass through the inside washing liquid of liquid collecting part and jet cleaning towards the impeller through injection portion.

Optionally, the liquid collecting portion includes the liquid collecting cup that inside is formed with the liquid collecting space, the liquid collecting cup has seted up the liquid collecting port that is used for accepting the washing liquid that the drain mouth flows, the liquid collecting cup is provided with the inlet of being connected with the feed liquor subassembly, the liquid collecting cup is provided with the liquid outlet of being connected with the play liquid subassembly.

Optionally, the liquid collecting cup is provided with a drain outlet, and a drain valve for opening and closing the drain outlet is arranged at the drain outlet; the position of the drain outlet is closer to the bottom of the liquid collecting cup than the position of the liquid inlet.

Optionally, the liquid outlet assembly includes the branch liquid valve of being connected with the liquid outlet, the branch liquid valve is provided with the branch liquid entry that is used for the intercommunication liquid outlet, is used for discharging the blowdown branch export of sewage, is used for carrying the liquid outlet branch mouth of injection portion with the washing liquid, be provided with the power pump between branch liquid entry and the liquid outlet and/or blowdown branch export and liquid outlet branch mouth do not are provided with the power pump.

Optionally, the liquid collecting cup is provided with a liquid level viewing window, the liquid level viewing window is communicated with a liquid collecting space of the liquid collecting cup, and a liquid level sensor for detecting the water level of the liquid collecting space of the liquid collecting cup is arranged at the liquid level viewing window.

Optionally, the air duct system further comprises an air inlet coaming surrounding the outside of the volute, and a cavity is formed between the bottom of the air inlet coaming and the bottom of the volute; the cavity between the bottom of the air inlet coaming and the bottom of the volute is communicated with the liquid collecting space of the liquid collecting cup; the utility model discloses a liquid collecting cup, including the spiral case, the air inlet bounding wall bottom is provided with the liquid collecting groove that is used for collecting the liquid of the cavity between the bottom of air inlet bounding wall with the bottom of spiral case to the liquid collecting space of liquid collecting cup, the surface slope setting of liquid collecting groove, the liquid collecting mouth of liquid collecting cup is located the lowest department of air inlet bounding wall bottom.

Optionally, a heating element for heating liquid in a cavity between the bottom of the air inlet coaming and the bottom of the volute is arranged at the bottom of the air inlet coaming; the heating element and the liquid collecting part are respectively and fixedly connected with the bottom of the air inlet coaming.

Optionally, a heating element for heating the washing liquid is arranged between the liquid outlet assembly and the spraying part.

Optionally, the air duct system further includes a heating element, where the heating element is fixedly connected to the liquid collecting portion, and the heating element can heat the liquid in the liquid collecting space of the liquid collecting portion.

Optionally, the liquid collecting cup is provided with a temperature sensor for detecting the temperature of liquid in the liquid collecting part and controlling whether the heating element is started or stopped.

Optionally, the injection portion is provided with the injection inlet that is used for being connected with the play liquid subassembly and the jet orifice that sets up towards the impeller, the jet orifice is located the spiral case inside.

Optionally, the liquid inlet component comprises a water inlet valve, a water inlet flowmeter connected to the outlet of the water inlet valve and controlling the opening and closing of the water inlet valve, and the outlet of the water inlet flowmeter is connected to the liquid collecting part.

In a second aspect, the present application provides a method for cleaning an air duct system in order to improve the cleaning capability of an impeller and save water.

The following technical scheme is adopted: a cleaning method of an air duct system comprises the following steps:

Step S1: a fixed amount of washing liquid is conveyed into a liquid collecting part at the bottom of the volute or a liquid collecting part at the bottom of the air inlet coaming;

Step S2: the washing liquid in the liquid collecting part is conveyed to the spraying part at the volute by the liquid outlet component and is sprayed and washed towards the impeller in the volute;

Step S3: the washing liquid after flushing flows back into the liquid collecting part to form a cleaning cycle, and then the liquid outlet component conveys the washing liquid in the liquid collecting part after the backflow to the spraying part for the next cleaning cycle until the cleaning cycle for the set time is completed;

step S4: discharging the sewage in the liquid collecting space;

step S5: setting the steps S1-S4 as one-time cleaning, and repeating the steps S1-S4 to finish the cleaning for the designated times.

In a third aspect, the present application provides an integrated range for improving the cleaning ability of an impeller.

The following technical scheme is adopted: an integrated kitchen, includes the wind channel system of above-mentioned technical scheme.

In summary, the present application includes at least one of the following beneficial technical effects: by utilizing the formed waterway circulation, the self-cleaning capability of the air duct system can be realized, the cleaning effect of the impeller is improved, and water resources can be saved.

Drawings

Fig. 1 is a schematic structural diagram of an air duct system according to an embodiment of the present application.

Fig. 2 is a schematic diagram of a partial structure of a scroll shroud in an air duct system according to an embodiment of the present application.

Fig. 3 is a schematic view of a partial structure of a liquid collecting cup in an air duct system according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a liquid collection cup and a drain valve in an air duct system according to an embodiment of the present application.

Fig. 5 is a schematic structural diagram of a liquid separating valve in an air duct system according to an embodiment of the present application.

Fig. 6 is a schematic structural view of another embodiment of a liquid collection cup in an air duct system according to an embodiment of the present application.

Fig. 7 is a schematic diagram of a local structure of a liquid collecting cup in an air duct system, which is mainly used for displaying a liquid level sensor and a temperature sensor.

Fig. 8 is a schematic structural view of an air intake shroud in an air duct system according to an embodiment of the present application.

Fig. 9 is a schematic diagram of an air duct system according to an embodiment of the present application, which is mainly used for showing a structure of one of the heating elements and the liquid separating valve.

Fig. 10 is a schematic structural diagram of an ejector in an air duct system according to an embodiment of the present application.

Fig. 11 is a schematic diagram of a cleaning water circulation in an air duct system according to an embodiment of the present application.

Reference numerals illustrate: 1. an impeller; 2. a volute; 21. volute coaming; 211. a liquid guide port; 22. a volute side plate; 221. an air inlet; 222. an air outlet; 3. a washing device; 31. a liquid collecting part; 311. a liquid collecting cup; 3110. a liquid collecting port; 3111. a liquid inlet; 3112. a liquid outlet; 3113. a sewage outlet; 3114. a flange; 32. a liquid inlet component; 321. a water inlet flowmeter; 322. a water inlet valve; 33. a liquid outlet component; 331. a water pump; 4. a spraying part; 41. an injection hole; 5. a blow-down valve; 51. a blow-down valve; 52. a blow-down valve motor; 6. a liquid separating valve; 61. a liquid separating inlet; 62. a sewage discharge outlet; 621. a blow-down pipe; 63. a liquid outlet; 7. a liquid level viewing window; 71. a liquid level sensor; 8. an air inlet coaming; 81. a liquid collecting tank; 82. a lead-out through hole; 91. an electric heating tube; 92. an electric heating plate; 93. a temperature sensor; 12. and (3) sealing rings.

Description of the embodiments

The present application will be described in further detail with reference to the accompanying drawings.

The embodiment of the application discloses an air duct system.

Referring to fig. 1, an air duct system includes an impeller 1, a volute 2 surrounding the impeller 1, and a washing device 3 for washing the impeller 1.

The volute 2 comprises two opposite volute side plates 21 and a volute coaming 22 connected between the two volute side plates 21, and the impeller 1 is rotatably connected between the two volute side plates 21. An air outlet 222 is formed between the end of the scroll shroud 22 and the two scroll side plates 21. An impeller motor (not shown in the figure) for driving the impeller 1 to rotate is fixedly arranged on one of the volute side plates 21, a circular air inlet 221 is formed in the other volute side plate 21, an air duct system is communicated with a smoke collecting cavity of the integrated kitchen or a smoke collecting cavity of the range hood through the air inlet 221, and oil smoke enters the volute 2 through the air inlet 221 and is discharged from an air outlet 222.

Referring to fig. 1 and 2, in order to enable cleaning of the impeller 1 inside the scroll casing 2, the washing apparatus 3 includes a liquid collecting portion 31, a liquid inlet assembly 32 connected to the liquid collecting portion 31, and a liquid outlet assembly 33 connected to the liquid collecting portion 31, the scroll casing 2 is provided with a spray portion 4 aligned with the impeller 1 and a liquid guide port 211 for guiding liquid inside the scroll casing 2 into the liquid collecting portion 31, the liquid inlet assembly 32 supplies a washing liquid to the liquid collecting portion 31, and the liquid outlet assembly 33 sprays the washing liquid inside the liquid collecting portion 31 toward the impeller 1 through the spray portion 4.

The washing liquid is conveyed into the liquid collecting part 31 by the liquid inlet assembly 32, and then the washing liquid in the liquid collecting part 31 is conveyed to the spraying part 4 by the liquid outlet assembly 33, and the washed washing liquid flows back to the liquid collecting part 31 again from the liquid guide port 211, so that the water path circulation cleaning is realized.

In some embodiments, the liquid guiding port 211 is formed at the bottom of the volute casing 22 and is located at the lowest position of the volute casing 2 in space, and the liquid guiding port 211 is communicated with the inside and the outside of the volute casing 2, so that the washing liquid after washing on the impeller 1 can flow out from the inside of the volute casing 2 to the liquid collecting part 31 through the liquid guiding port 211.

Referring to fig. 3 and 4, in some embodiments, the liquid collecting portion 31 includes a liquid collecting cup 311 having a liquid collecting space formed therein, the liquid collecting cup 311 is provided with a liquid collecting port 3110 for receiving the washing liquid flowing out of the liquid guiding port 211, the liquid collecting cup 311 is provided with a liquid inlet 3111 connected to the liquid inlet module 32, and the liquid collecting cup 311 is provided with a liquid outlet 3112 connected to the liquid outlet module 33.

The liquid collecting cup 311 has a hollow structure with an upper opening, may be a cylinder or a rectangular parallelepiped, and has a liquid collecting space sinking from the liquid collecting port 3110. In some embodiments, a flange 3114 may be integrally formed at an upper opening rim of the collector cup 311, and a sealing ring 12 is embedded in the flange 3114.

The liquid inlet 3111 and the liquid outlet 3112 are disposed on the liquid collecting cup 311, the liquid inlet 3111 may be integrally formed at a liquid inlet pipe end of the liquid collecting cup 311, and the liquid outlet 3112 may be integrally formed at a liquid outlet pipe end of the liquid collecting cup 311, and in some embodiments, the liquid outlet pipe is closer to the upper side of the liquid collecting cup 311, that is, closer to the liquid collecting opening 3110, than the liquid inlet pipe. The liquid inlet assembly 32 conveys the external washing liquid into the liquid collecting space, and the washing liquid is conveyed to the spraying part 4 from the liquid outlet assembly 33 through the liquid outlet 3112.

In some embodiments, in order to be able to drain the cleaned oil out of the liquid collection cup 311, the liquid collection cup 311 is provided with a drain.

Referring to fig. 3 and 4, in some embodiments, the drain includes a drain 3113 provided at the liquid collection cup 311, the drain 3113 is located closer to the bottom of the liquid collection cup 311 than the liquid inlet 3111 is located, and the drain 3113 may be integrally formed with the drain pipe of the liquid collection cup 311. The openings of the liquid outlet pipe, the liquid inlet pipe and the sewage discharge pipe can face different directions or any two or three openings face the same direction. Preferably, the central axes of the liquid outlet pipe and the liquid inlet pipe are parallel, and the central axis of the sewage pipe is perpendicular to the central axis of the liquid inlet pipe.

Referring to fig. 4, a drain valve 5 is provided on the liquid collection cup 311, and in some embodiments, the drain valve 5 includes a drain valve 51 and a drain valve motor 52, the drain valve 51 is installed in the liquid collection cup 311, the drain valve motor 52 is installed at the bottom of the outside of the liquid collection cup 311, the drain valve motor 52 is used to open and close the drain valve 51, and the drain valve 51 is controlled by the drain valve motor 52 to open and close a drain 3113. Of course, the drain valve 5 may be directly disposed at the end of the drain pipe away from the liquid collection cup 311. In the above embodiment, the liquid outlet assembly 33 includes the water pump 331 connected to the liquid outlet 3112, the water inlet of the water pump 331 is communicated with the liquid outlet 3112, and the water outlet of the water pump 331 is connected to the spraying portion 4 through a pipe.

Referring to fig. 5 and 6, in some embodiments, the liquid collection cup 311 is not provided with a drain 3113 and a drain valve 5, the liquid outlet 3112 is connected to the liquid dividing valve 6 through a pipe, and the liquid dividing valve 6 is provided with a liquid dividing inlet 61 for communicating with the liquid outlet 3112, a drain dividing outlet 62 for discharging sewage, and a liquid dividing outlet 63 for delivering the washing liquid to the spray portion 4. A pipe is connected between the liquid-dividing inlet 61 and the liquid outlet 3112, the sewage-discharging outlet 62 is connected with a sewage pipe 621 and is connected to a sewage container or a sewer pipe, and the liquid-discharging outlet 63 is connected to the spouting portion 4 through the pipe. When the cleaning operation is performed, the liquid outlet 63 of the liquid separating valve 6 is opened, the sewage discharging outlet 62 is closed, and after the cleaning is completed, the sewage discharging outlet 62 is opened, and the liquid outlet 63 is closed.

In the embodiment where the drain port 3113 and the drain valve 5 are not provided in the liquid collecting cup 311, a power pump is provided between the liquid dividing inlet 61 and the liquid outlet 3112 and/or a power pump is provided to the drain dividing outlet 62 and the liquid outlet 63, respectively. When the inlet of the power pump is connected to the liquid outlet 3112, the power pump is used to perform both pumping action during a cleaning operation and blowdown action during blowdown. When the power pumps are arranged at the sewage discharge outlet 62 and the liquid outlet 63, the cleaning power pump connected with the liquid outlet 63 is started when the cleaning work is carried out, the sewage discharge power pump at the sewage discharge outlet 62 is closed, and when the sewage discharge work is carried out, the sewage discharge power pump at the sewage discharge outlet 62 is started, and the cleaning power pump at the liquid outlet 63 is closed. The above power pump may preferably be the water pump 331.

Referring to fig. 5-7, in some embodiments, the liquid collecting cup 311 is provided with a liquid level viewing window 7, the liquid level viewing window 7 is communicated with a liquid collecting space of the liquid collecting cup 311, a liquid level sensor 71 for detecting the water level of the liquid collecting space of the liquid collecting cup 311 is arranged at the liquid level viewing window 7, and when the liquid level sensor 71 detects that a certain amount of greasy dirt and grease are accumulated in the liquid collecting space, a pollution discharge prompt and an air duct system cleaning are fed back. Preferably, the liquid level sensor 71 may be electrically connected to a controller and output a liquid level signal to the controller, the controller is electrically connected to the power pump and the liquid distribution valve 6 and is used for receiving the liquid level signal, a liquid level start value for judging whether to perform cleaning is preset in the controller, the received liquid level value is compared with the liquid level start value, when the received liquid level value reaches the liquid level start value, the controller controls the power pump to start, and synchronously controls the liquid outlet 63 of the liquid distribution valve 6 to open, and the sewage distribution outlet 62 to close, so as to perform cleaning action. The provision of the liquid level viewing window 7 and the liquid level sensor 71 is preferably applicable to an embodiment in which the drain port 3113 is not provided on the liquid collection cup 311, but of course, the liquid level viewing window 7 and the liquid level sensor 71 may be provided in an embodiment in which the drain port 3113 and the drain valve 5 are provided.

Referring to fig. 1 and 8, in the above embodiment, the liquid collecting cup 311 may be fixedly connected to the bottom outer wall of the scroll casing 2 by bolts on the flange 3114, and may also be fixed to the bottom of the air intake shroud 8 outside the scroll casing 2 by bolts, the air intake shroud 8 is disposed around the outside of the scroll casing 2, a cavity is provided between the bottom of the air intake shroud 8 and the bottom of the scroll casing 2, the cavity between the bottom of the air intake shroud 8 and the bottom of the scroll casing 2 is communicated with the liquid collecting space of the liquid collecting cup 311, the air intake shroud 8 bottom is provided with a liquid collecting groove 81 for collecting the liquid of the cavity between the bottom of the air intake shroud 8 and the bottom of the scroll casing 2 to the liquid collecting space of the liquid collecting cup 311, the surface of the liquid collecting groove 81 is inclined, and a liquid collecting port 3110 of the liquid collecting cup 311 is located at the lowest position of the bottom of the air intake shroud 8.

The bottom of the air intake coaming 8 is provided with a guiding-out through hole 82, the liquid collected by the liquid collecting tank 81 flows into the guiding-out through hole 82, and the guiding-out through hole 82 is communicated with the inside of the liquid collecting part 31. The liquid collection cup 311 is connected to the discharge through hole 82 by the seal ring 12 in a sealing manner, and the discharge through hole 82 communicates with a liquid collection port 3110 of the liquid collection cup 311.

Holes are formed in the air inlet coaming 8 and correspond to the air outlet 222 and the air inlet 221 of the volute 2.

In some embodiments, the guiding-out through hole 82 penetrates through the bottom of the air intake coaming 8, the liquid collecting groove 81 surrounds the periphery of the guiding-out through hole 82 and is arranged in an open mode, and one side, away from the guiding-out through hole 82, of the liquid collecting groove 81 is higher than one side, close to the guiding-out through hole 82, of the liquid collecting groove 81, so that circulating washing liquid flowing out from the liquid guiding-out hole 211 can be collected better and flow into the guiding-out through hole 82.

In some embodiments, in order to enhance the cleaning effect on the impeller 1, a heating device for heating the washing liquid is provided in the air duct system.

Referring to fig. 9, the heating device includes a heating element disposed at the bottom of the air intake shroud 8 for heating liquid disposed in a cavity between the bottom of the air intake shroud 8 and the bottom of the volute 2, and in some embodiments the heating element may be an electric heating plate 92, where the electric heating plate 92 is fixedly mounted on the air intake shroud 8, and a heating end of the electric heating plate 92 is disposed at the inner side of the air intake shroud 8, and the electric heating plate 92 is disposed at one side of the sump 81, so as to facilitate heating of the washing liquid accumulated at the bottom of the air intake shroud 8.

In some embodiments, the air duct system further comprises a heating element (not shown) fixedly connected to the liquid collecting portion 31, the heating element being capable of heating the liquid disposed in the liquid collecting space of the liquid collecting portion 31.

Referring to fig. 1, in some embodiments, the heating means comprises a heating element connected between the tapping assembly 33 and the ejection portion 4. The heating element can be an electric heating pipe 91, one end of the electric heating pipe 91 is connected with the spraying part 4 through a pipeline, the other end of the electric heating pipe 91 is connected with the liquid outlet component 33 through a pipeline, so that the washing liquid flowing out of the liquid collecting part 31 can play a role in heating when passing through the electric heating pipe 91, the washing liquid entering the spraying part 4 reaches a higher temperature, and the washing effect is improved. This embodiment may be used in combination with a heating element at the intake shroud 8 or alternatively, while in embodiments where the collector cup 311 is directly connected to the volute 2, a heating element connected between the liquid outlet assembly 33 and the ejection portion 4 may be preferred.

Referring to fig. 7, in order to better control the temperature of the washing liquid, the liquid collecting part 31 is provided with a temperature sensor 93 for detecting the temperature of the liquid inside the liquid collecting part 31 and for controlling whether the heating element is turned on or off.

The temperature sensor 93 is electrically connected to a controller, the controller is electrically connected to the heating element, the controller receives a temperature signal detected by the temperature sensor 93, the controller presets a standard temperature or a standard temperature interval, the temperature detected by the temperature sensor 93 is compared with the standard temperature, if the detected temperature is lower than the standard temperature or is lower than the minimum value of the standard temperature interval, the heating element is started to work and heat the washing liquid, and if the detected temperature reaches the standard temperature or is within the standard temperature interval, the heating element is closed.

Referring to fig. 2 and 10, in order to achieve a better cleaning effect, the injection part 4 is provided with an injection inlet for connection with the liquid outlet assembly 33 and an injection hole 41 opened toward the impeller 1, the injection hole 41 being located inside the volute 2.

Referring to fig. 10 and 11, in some embodiments, the outer ring of the spraying portion 4 is mounted on the volute casing 22 in a sealing manner, a certain water storage space is arranged in the spraying portion 4 in a hollow manner, the spraying hole 41 is formed in the surface of the spraying portion 4 extending into the volute casing 2, and the surface of the spraying portion 4 extending into the volute casing 2 can be inclined at a certain angle. The number of the injection holes 41 may be plural, and the direction in which the injection holes 41 are opened may be the same or may be set at an angle to the central axis direction of the impeller 1. A water inlet is arranged outside the volute 2 at the spraying part 4 and is communicated with the liquid outlet assembly 33 through a pipeline. In the embodiment provided with the electric heating pipe 91, one end of the electric heating pipe 91 is communicated with the water inlet of the injection part 4 positioned outside the volute 2, and the other end of the electric heating pipe 91 is communicated with the water outlet of the water pump 331 or the power pump connected at the liquid outlet 3112.

Referring to fig. 9, in order to control the amount of liquid during the washing process, the liquid inlet assembly 32 includes a water inlet valve 322, a water inlet flow meter 321 connected to an outlet of the water inlet valve 322 and controlling the opening and closing of the water inlet valve 322, and an outlet of the water inlet flow meter 321 is connected to the liquid collecting part 31.

The water inflow meter 321 detects the amount of water entering the liquid collecting portion 31, and when the amount of water reaches a predetermined amount, the water inflow meter 321 feeds back to the water inflow valve 322 to be closed, and water inflow is stopped. One end of the water inlet flow meter 321 away from the water inlet valve 322 is connected to the liquid inlet 3111 of the liquid collecting cup 311.

The working principle of the present embodiment is that 1, the drain outlet 3113 is closed by the drain valve 5 or the drain outlet 62 of the liquid separation valve 6 is closed; 2. opening the water inlet valve 322 to feed water or washing liquid into the liquid collecting cup 311; 3. after the water inflow flowmeter 321 detects the designated water amount, the feedback water inlet valve 322 is closed, and water inflow or washing liquid is stopped; 4. starting a water pump 331 or a power pump to convey water or washing liquid in the liquid collecting space to the spraying part 4; 5. the heating element heats the circulated water or washing liquid, and the water or washing liquid is maintained at a certain temperature by the feedback control of the temperature sensor 93 and the heating element; 6. the injection hole 41 of the injection part 4 injects toward the impeller 1 with a certain water pressure, and the impeller 1 rotates 360 degrees; 7. the water or the washing liquid in the cleaning process flows back into the liquid collecting space through the liquid guide port 211 on the volute 2 to form a cleaning cycle; 8. setting the starting working time of the water pump 331 or the power pump, and closing the water pump 331 or the power pump and stopping cleaning after the specified time is reached; 9. the blow-down valve or blow-down outlet 62 is opened, the water pump 331 or the power pump is started, and the sewage in the liquid collecting space is discharged; 10. the steps 1-9 are one-time cleaning, and the steps 1-9 are repeated until the designated cleaning times are reached according to the set cleaning times.

The embodiment of the application also discloses a cleaning method of the air duct system, which comprises the following steps: step S1: a fixed amount of washing liquid is conveyed into a liquid collecting part 31 at the bottom of the volute 2 or a liquid collecting part 31 at the bottom of the air inlet coaming 8; step S2: the washing liquid in the liquid collecting part 31 is conveyed to the spraying part 4 at the volute 2 by the liquid outlet component 33 and is sprayed and washed towards the impeller 1 in the volute 2; step S3: the washing liquid after washing flows back into the liquid collecting part 31 to form a washing cycle, and then the liquid outlet component 33 conveys the washing liquid in the liquid collecting part 31 after the back flow to the spraying part 4 for the next washing cycle until the washing cycle for the set time is completed; step S4: discharging the sewage in the liquid collecting space; step S5: setting the steps S1-S4 as one-time cleaning, and repeating the steps S1-S4 to finish the cleaning for the designated times.

The embodiment of the application also discloses an integrated kitchen which comprises the air duct system according to the technical scheme.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (14)

1. An air duct system comprising an impeller (1), a volute (2) surrounding the impeller (1), characterized in that: the air duct system further comprises a washing device (3), the washing device (3) comprises a liquid collecting part (31), a liquid inlet component (32) connected with the liquid collecting part (31) and a liquid outlet component (33) connected with the liquid collecting part (31), the spiral case (2) is provided with a spraying part (4) aligned with the impeller (1) and a liquid guide opening (211) used for guiding liquid in the spiral case (2) into the liquid collecting part (31), the liquid inlet component (32) is used for conveying washing liquid to the liquid collecting part (31), and the liquid outlet component (33) can spray and clean the washing liquid in the liquid collecting part (31) towards the impeller (1) through the spraying part (4).

2. An air duct system according to claim 1, wherein: the liquid collecting part (31) comprises a liquid collecting cup (311) with a liquid collecting space formed inside, the liquid collecting cup (311) is provided with a liquid collecting opening (3110) for receiving washing liquid flowing out of the liquid guiding opening (211), the liquid collecting cup (311) is provided with a liquid inlet (3111) connected with the liquid inlet assembly (32), and the liquid collecting cup (311) is provided with a liquid outlet (3112) connected with the liquid outlet assembly (33).

3. An air duct system according to claim 2, wherein: the liquid collecting cup (311) is provided with a drain outlet (3113), and a drain valve (5) for opening and closing the drain outlet (3113) is arranged at the drain outlet (3113); the position of the drain outlet (3113) is closer to the bottom of the liquid collecting cup (311) than the position of the liquid inlet (3111).

4. An air duct system according to claim 2, wherein: the liquid outlet assembly (33) comprises a liquid separating valve (6) connected with a liquid outlet (3112), the liquid separating valve (6) is provided with a liquid separating inlet (61) used for communicating the liquid outlet (3112), a sewage draining outlet (62) used for discharging sewage and a liquid outlet (63) used for conveying washing liquid to the spraying part (4), a power pump is arranged between the liquid separating inlet (61) and the liquid outlet (3112) and/or the sewage draining outlet (62) and the liquid outlet (63) are respectively provided with the power pump.

5. An air duct system according to claim 2, wherein: the liquid collecting cup (311) is provided with a liquid level viewing window (7), the liquid level viewing window (7) is communicated with a liquid collecting space of the liquid collecting cup (311), and a liquid level sensor (71) for detecting the water level of the liquid collecting space of the liquid collecting cup (311) is arranged at the liquid level viewing window (7).

6. An air duct system according to any one of claims 1-5, wherein: the air duct system further comprises an air inlet coaming (8) which is arranged around the outside of the volute (2), and a cavity is formed between the bottom of the air inlet coaming (8) and the bottom of the volute (2); the cavity between the bottom of the air inlet coaming (8) and the bottom of the volute (2) is communicated with the liquid collecting space of the liquid collecting cup (311); the utility model discloses a liquid collecting cup, including air inlet bounding wall (8), spiral case (2) are provided with air inlet bounding wall (8) bottom, air inlet bounding wall (8) bottom be provided with be used for with the bottom of air inlet bounding wall (8) with liquid collection groove (81) in the liquid collection space of collecting cup (311), the surface slope setting of collecting groove (81), liquid collecting mouth (3110) of collecting cup (311) are located the lowest department of air inlet bounding wall (8) bottom.

7. An air duct system according to claim 6, wherein: the bottom of the air inlet coaming (8) is provided with a heating element for heating liquid in a cavity between the bottom of the air inlet coaming (8) and the bottom of the volute (2); the heating element and the liquid collecting part (31) are respectively and fixedly connected with the bottom of the air inlet coaming (8).

8. An air duct system according to claim 1, wherein: a heating element for heating the washing liquid is arranged between the liquid outlet assembly (33) and the spraying part (4).

9. An air duct system according to claim 1, wherein: the air duct system further comprises a heating element which is fixedly connected with the liquid collecting part (31) and can heat liquid in the liquid collecting space of the liquid collecting part (31).

10. An air duct system according to claim 7 or 8 or 9, wherein: the liquid collecting cup (311) is provided with a temperature sensor (93) for detecting the temperature of the liquid in the liquid collecting part (31) and controlling whether the heating element is opened or closed.

11. An air duct system according to any one of claims 1-5, 7,8, 9, wherein: the injection part (4) is provided with an injection inlet connected with the liquid outlet component (33) and an injection hole (41) arranged towards the impeller (1), and the injection hole (41) is positioned in the volute (2).

12. An air duct system according to any one of claims 1-5, 7, 8, 9, wherein: the liquid inlet assembly (32) comprises a water inlet valve (322) and a water inlet flowmeter (321) connected to the outlet of the water inlet valve (322) and controlling the water inlet valve (322) to open and close, and the outlet of the water inlet flowmeter (321) is connected to the liquid collecting part (31).

13. The cleaning method of the air duct system is characterized by comprising the following steps of: the method comprises the following steps:

Step S1: a fixed amount of washing liquid is conveyed into a liquid collecting part (31) at the bottom of the volute (2) or a liquid collecting part (31) at the bottom of the air inlet coaming (8);

Step S2: the washing liquid in the liquid collecting part (31) is conveyed to the spraying part (4) at the volute (2) by the liquid outlet component (33) and is sprayed and washed towards the impeller (1) in the volute (2);

Step S3: the washing liquid after washing flows back into the liquid collecting part (31) to form a washing cycle, and then the liquid outlet component (33) conveys the washing liquid in the liquid collecting part (31) after the back flow to the spraying part (4) to perform the next washing cycle until the washing cycle for a set time is completed;

step S4: discharging the sewage in the liquid collecting space;

step S5: setting the steps S1-S4 as one-time cleaning, and repeating the steps S1-S4 to finish the cleaning for the designated times.

14. An integrated kitchen, characterized in that: an air duct system comprising any of the above claims 1-12.