CN216557306U - Lampblack exhaust equipment with clean function of fan system - Google Patents

Abstract

The utility model belongs to the technical field of oil smoke exhaust products, and particularly relates to oil smoke exhaust equipment with a fan system cleaning function, which comprises a fan system for exhausting oil smoke, wherein the fan system comprises a volute and a first impeller which is arranged in the volute and can rotate along a rotating shaft of the volute to exhaust oil smoke; the outer side wall of the volute is provided with a hot air device, the hot air device is provided with a hot air cavity, an air inlet of the hot air cavity faces the outer part of the volute, and an installation end of the hot air cavity penetrates through the outer side wall of the volute and extends to the inner part of the volute, so that an air outlet of the hot air cavity faces the outer peripheral wall of the first impeller; the hot-blast intracavity is close to air intake one side and is equipped with the clean fan that is used for arranging hot-blast, the hot-blast intracavity is close to air outlet one side and still is equipped with the hot-blast high temperature heating member that is used for the heating to form not less than 200 ℃. The oil smoke discharging equipment has higher cleanliness and higher cleaning speed, so that the cleaning effect is better, and moreover, the waterproof treatment on a fan system is not needed, and the implementation cost is greatly reduced.

Description

Lampblack exhaust equipment with clean function of fan system

Technical Field

The utility model relates to the technical field of oil fume exhaust products, in particular to oil fume exhaust equipment with a fan system cleaning function.

Background

The automatic cleaning mode of the fan system of the oil fume exhaust equipment (such as a range hood and an integrated stove) in the current market mainly comprises the following modes: water washing, steam washing and steam pressure washing. The cleaning modes have the defect of excessively low cleaning temperature, and almost no cleaning effect is realized on a fan system which is not cleaned for a long time; these cleaning methods have little cleaning effect on grease, especially grease adhering to a fan system for a long time, because grease is a jelly having strong adhesiveness, and it is difficult for steam at 100 c such as steam washing to melt and separate the grease from the fan system.

In addition, a hot-melting washing mode of heating a volute also exists in the prior art, for example, a hot-blowing washing system of a range hood provided by publication number CN107321716A is characterized in that under the action of a washing fan, an electric heating device is adopted to heat the inlet air of the washing fan to 50-80 ℃ to form hot air, then the hot air is blown into the inner side of an impeller, and the impeller rotates to drive hot air circulation, so that the whole inside of the range hood is heated, oil stains are softened, vaporized and liquefied, and hot air cleaning is performed. However, the hot blast cleaning system can only provide hot blast of 50-80 degrees, the temperature of the hot blast is still too low, especially, the grease adhered to the fan system for a long time has little cleaning effect, and the air outlet position of the hot blast opening is close to the inner side of the impeller blade, which easily causes the hot blast to be blocked by the rotating impeller blade and difficult to rapidly spread and clean the inner wall of the machine body, so the cleaning effect of the hot blast cleaning system is poor.

SUMMERY OF THE UTILITY MODEL

One of the objectives of the present invention is to provide a range hood with air cleaning function to achieve fast and efficient cleaning and improve cleaning effect.

The second objective of the present invention is to provide a method for cleaning a range hood with a fan system cleaning function, so as to further improve the cleaning effect.

Based on the above, the utility model discloses an oil smoke exhaust device with a fan system cleaning function, which comprises a fan system for exhausting oil smoke, wherein the fan system comprises a volute and a first impeller which is arranged in the volute and can rotate along a rotating shaft of the volute to exhaust the oil smoke; the outer side wall of the volute is provided with a hot air device, the hot air device is provided with a hot air cavity, an air inlet of the hot air cavity faces the outer part of the volute, and a mounting end of the hot air cavity penetrates through the outer side wall of the volute and extends to the inner part of the volute, so that an air outlet of the hot air cavity faces the outer peripheral wall of the first impeller; the hot-blast intracavity is close to air intake one side and is equipped with the clean fan that is used for arranging hot-blast, the hot-blast intracavity is close to air outlet one side and still is equipped with the hot-blast high temperature heating member that is used for the heating to form not less than 200 ℃.

Preferably, the shape of the hot air cavity is trumpet-shaped, and the equivalent diameter of an air inlet of the hot air cavity is larger than that of an air outlet of the hot air cavity.

Further preferably, the cleaning fan is provided with a second impeller for exhausting hot air, so that the air speed of an air outlet of the hot air cavity is not less than 6 m/s.

Preferably, a heating wire is arranged in the high-temperature heating element and used for heating to form hot air at the temperature of not less than 200 ℃, preferably 200-300 ℃.

Preferably, a one-way valve is arranged at a communication position of the installation end of the hot air cavity and the volute so as to prevent the backflow of hot air.

Preferably, the wind direction of the wind outlet of the hot wind cavity is consistent with the tangential direction of the circular arc blades of the first impeller, so that both surfaces of the circular arc blades of the first impeller can be fully contacted with hot wind.

Preferably, the hot air device is a hot air gun.

Compared with the prior art, the utility model at least comprises the following beneficial effects:

in the oil smoke discharging equipment, the mounting end of the hot air cavity penetrates through the outer side wall of the volute and then extends into the volute, so that the air outlet of the hot air cavity faces the outer peripheral wall of the first impeller, namely the air outlet of the hot air cavity can directly face to the outer peripheral wall of the first impeller, and the hot air discharged from the hot air cavity can directly contact with the first impeller; on one hand, the high-temperature heating element can form hot air with the temperature not less than 200 ℃ by heating, and the temperature of the hot air just discharged from the air outlet of the hot air cavity is higher and can reach 200 ℃, so that the grease on the surface of the first impeller can be quickly dried, melted, even liquefied and combusted for gasification, and on the other hand, the wind speed of the hot air just discharged from the air outlet of the hot air cavity is higher, and the wind speed can directly generate larger impact with the first impeller so as to beat the first impeller and accelerate the grease to fall off, so that the first impeller can be better cleaned; meanwhile, under the rotation of the first impeller, hot air directly contacting with the first impeller is easily reflected to the inner surface of the volute so as to play a good cleaning role on the volute; and then reach the effect of high-efficient clean first impeller and spiral case simultaneously. Moreover, the oil smoke discharging equipment does not need a fan system to perform waterproof treatment, and the implementation cost is greatly reduced.

Drawings

Fig. 1 is a schematic view of an installation structure of a hot air device in a range hood device with a cleaning function of a fan system according to the embodiment.

Fig. 2 is a schematic structural diagram of a hot air device in the range hood device with the cleaning function of the fan system according to the embodiment.

The reference numbers illustrate: 1, a volute; 2 a first impeller; 3, a hot air device; 31 hot air cavity; 32 air inlets; 33 cleaning the fan; 34 high temperature heating elements; 35 a mounting end; 36 air outlet.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Examples

A range hood apparatus having a fan system cleaning function according to the present embodiment, referring to fig. 1, includes a fan system for pumping and exhausting oil smoke, the fan system being installed in a body of the range hood apparatus; the fan system is preferably a centrifugal fan, and comprises a volute 1 and a first impeller 2 arranged in the volute 1, and the first impeller 2 can rotate along a rotating shaft under the driving of the centrifugal fan so as to exhaust oil smoke out of a room. When the oil smoke exhausting equipment works, under the rotary adsorption action of the first impeller 2, oil smoke generated in a kitchen is sucked into a machine body and is exhausted to the outside from an air outlet of the volute 1 through the volute 1, so that the oil smoke exhausting function of the oil smoke exhausting equipment is realized, the first impeller 2 can be inevitably contacted with the oil smoke in the oil smoke exhausting process, and partial oil smoke is adhered to the first impeller 2, so that the first impeller 2 needs to be cleaned.

Wherein, referring to fig. 2, the outer sidewall of the scroll casing 1 is mounted with a hot wind device 3 to produce and discharge hot wind of high temperature of not less than 200 ℃ from the outlet of the hot wind device 3. Specifically, the hot air device 3 is provided with a hot air cavity 31, two end parts of the hot air cavity 31 are respectively provided with an air inlet 32 and an air outlet 36, one side of the hot air cavity 31 close to the air inlet 32 is provided with a cleaning fan 33, the cleaning fan 33 is provided with a second impeller for exhausting hot air, so that the air speed of the air outlet 36 of the hot air cavity 31 is not less than 6m/s, and the second impeller is of an existing fan impeller structure; a high-temperature heating element 34 is also arranged on one side of the hot air cavity 31 close to the air outlet 36. When the hot air supplying device works, the cleaning fan 33 sucks cold air outside the hot air cavity 31 into the hot air cavity 31 from the air inlet 32, then the high-temperature heating element 34 rapidly heats the cold air in the hot air cavity 31 to form hot air with the temperature not lower than 200 ℃, and then the hot air is discharged from the air outlet 36 of the hot air cavity 31 under the guidance of the cleaning fan 33.

Further, referring to fig. 1-2, the air inlet 32 of the hot air chamber 31 faces the outside of the scroll casing 1, so that the cold air outside the scroll casing 1 enters the hot air chamber 31 from the air inlet 32; the end of the hot air cavity 31 close to the scroll casing 1 is the mounting end 35, the mounting end 35 of the hot air cavity 31 passes through the outer side wall of the scroll casing 1 and then extends to the inside of the scroll casing 1, so that the air outlet 36 of the hot air cavity 31 faces the outer peripheral wall of the first impeller 2, that is, the air outlet 36 of the hot air cavity 31 directly faces the outer peripheral wall of the first impeller 2, and hot air generated in the hot air cavity 31 can be discharged from the air outlet 36 and then directly contacts the first impeller 2. Therefore, on one hand, the temperature of hot air just discharged from the air outlet 36 of the hot air cavity 31 is high, grease on the surface of the first impeller 2 can be dried, melted, liquefied and gasified quickly, on the other hand, the wind speed of the hot air just discharged from the air outlet 36 of the hot air cavity 31 is also high, and the hot air can directly generate large impact with the first impeller 2 to beat the first impeller 2, so that grease on the surface of the first impeller 2 is accelerated to fall off, and further, under the double action of hot air with high temperature and high wind speed just discharged from the air outlet 36 of the hot air cavity 31, the first impeller 2 can be cleaned well, and grease on the surface of the first impeller 2 can fall off quickly; meanwhile, under the rotating action of the first impeller 2, hot air directly contacting the first impeller 2 is easily reflected to the inner surface of the volute 1, so that the volute 1 is well cleaned, and the effect of efficiently cleaning the first impeller 2 and the volute 1 is achieved. Wherein, the mounting end 35 of the hot air cavity 31 and the volute 1 can be fixedly mounted to ensure the structural firmness and stability of the whole oil fume exhaust device; the mounting end 35 of the hot blast chamber 31 is preferably removably mounted, e.g., snapped, to the volute 1 for servicing and replacement of the hot blast apparatus 3. A one-way valve is arranged at the communication position of the installation end 35 of the hot air cavity 31 and the volute 1 to prevent the discharged hot air from flowing back to the hot air cavity 31, improve the utilization rate of the hot air and prevent the hot air discharged into the volute 1 from flowing back to pollute the hot air cavity 31.

In order to achieve a better cleaning effect, the cleaning fan 33 can be provided with two freely-switched working modes of continuous hot air exhaust and intermittent hot air exhaust, so that high-temperature hot air can intermittently beat the first impeller 2 and the volute 1 to force jelly grease to be rapidly melted, liquefied and gasified, and then the jelly grease is rapidly separated from the volute 1 and the first impeller 2, and a better effect of cleaning the fan 33 system is achieved.

Further, the wind direction of the wind outlet 36 of the hot wind cavity 31 is consistent with the tangential direction of the circular arc blades of the first impeller 2, so that the two surfaces of the circular arc blades of the first impeller 2 can be fully contacted with hot wind, and the two surfaces of the circular arc blades can be efficiently cleaned.

Wherein, in order to better clean the viscous jelly grease attached to the volute 1 and the first impeller 2, the hot air discharged by the hot air device 3 has a high enough temperature to dry, melt, liquefy and gasify the grease by the hot air; accordingly, the hot air device 3 is a device capable of discharging hot air at high temperature, and is preferably a hot air gun.

Wherein, a heating wire is arranged in the high-temperature heating element 34 and is used for heating to form hot air with the temperature not less than 200 ℃; the heating wire is preferably an electric heating wire so as to heat cold air in the hot air cavity 31; of course, the high temperature heating member 34 or the hot air chamber 31 may be further provided with a temperature sensor for detecting the temperature of the hot air so as to control the high temperature heating member 34 to ensure the stability of the temperature of the hot air heated in the hot air chamber 31. Preferably, the hot air temperature of the air outlet 36 of the hot air cavity 31 is 200 ℃ to 300 ℃, and more preferably, the hot air temperature of the air outlet 36 of the hot air cavity 31 is 300 ℃; on one hand, the ignition point of 95% of the grease is below 320 ℃, the temperature of hot air is controlled to be 300 ℃, and the grease can be ensured to be quickly dried, melted, liquefied and gasified by the hot air; on the other hand, if the hot air temperature is too high, the risk of firing exists, the potential safety hazard is easily brought, and the hot air easily destroys the anticorrosive coatings on the surfaces of the volute 1 and the first impeller 2, so that the service life of the oil fume exhaust equipment is influenced.

In order to further improve the cleaning effect, besides high-temperature hot air, the hot air has enough wind speed to have a better beating effect on the first impeller 2 and the volute 1, so that the dried and stripped grease is quickly blown away; experiments show that when the air speed of the air outlet 36 of the hot air cavity 31 is equal to or more than 6m/s, the peeled grease can be blown away. Based on this, the shape of the hot air cavity 31 is set to be horn-shaped, and the equivalent diameter of the air inlet 32 of the hot air cavity 31 is larger than the equivalent diameter of the air outlet 36 of the hot air cavity 31; therefore, the air inlet 32 of the hot air cavity 31 is large, the air inlet amount can be ensured, the air outlet 36 is small, certain air pressure and air speed can be generated, the air speed of the air outlet 36 of the hot air cavity 31 can be enabled to be not less than 6m/s, and the cleaning effect is improved.

The method for cleaning the oil fume exhaust equipment with the fan system cleaning function comprises the following cleaning steps:

step S1, driving the first impeller 2 to rotate, and starting the hot air device 3 to work, so that the air outlet 36 of the hot air cavity 31 continuously discharges hot air at a temperature of not less than 200 ℃, so as to reflect the hot air to the inner surface of the volute 1 under the rotation of the first impeller 2, so that the grease on the surfaces of the first impeller 2 and the volute 1 is dried and melted by the hot air;

step S2, after the hot air is continuously discharged for a period of time in step S1, the cleaning fan 33 is driven to intermittently operate, so that the hot air at a temperature of not less than 200 ℃ is continuously discharged from the air outlet 36 of the hot air cavity 31, and the grease is removed.

In the cleaning method, in the preliminary cleaning stage, hot air at a temperature of not less than 200 ℃ is continuously discharged from an air outlet 36 of a hot air cavity 31 to quickly fill the whole fan system with the hot air, volatile matters in the adhered jelly grease are quickly volatilized through continuous high-temperature and high-speed hot air to dry the fan system, and meanwhile, the continuous high-temperature and high-speed hot air can ensure that the grease is quickly melted, liquefied and even combusted and gasified by virtue of the thermal radiation and air thermal conduction of the continuous high-temperature and high-speed hot air; in step S1, when the hot air device 3 is operated, the rotation speed of the cleaning fan 33 is 600-; then, the cleaning fan 33 is intermittently operated to intermittently discharge hot air to form a hot air hammer to beat the grease melted in the fan system, so that the grease is dropped off, and the cleanliness in the fan system is improved. Wherein, the cleaning fan 33 can be operated intermittently by manually controlling the switch of the cleaning fan 33; of course, the cleaning fan 33 can be controlled by the existing circuit technology to work intermittently, so that the use is more convenient. In order to ensure that the formed hot air hammer can rapidly drop the grease, in step S2, the rotation speed of the cleaning fan 33 is 600-900 rpm, preferably 750-800 rpm, and the time for intermittently discharging hot air is 2-6 minutes, preferably 3-5 minutes, more preferably 3 minutes; the intermittent operation of the cleaning fan 33 is as follows: after the cleaning fan 33 continuously works for 3-10 seconds, the work is stopped for 8-20 seconds, preferably: after the cleaning fan 33 continues to work for 3-7 seconds, the work is stopped for 8-15 seconds, and more preferably: after the cleaning fan 33 is continuously operated for 5 seconds, the operation is stopped for 10 seconds.

Further, to avoid grease residue, after step S2, the rotation speeds of the first impeller 2 and the cleaning fan 33 are manually or electrically controlled to 950-; the rotation speed of the first impeller 2 and the cleaning fan 33 rotating at high speed is preferably 950-.

Compared with the existing cleaning mode, the cleaning method of the oil fume exhaust equipment has higher cleanliness and higher cleaning speed, so that the cleaning effect is better, and the cleaning mode does not need a fan system to perform waterproof treatment, thereby greatly reducing the implementation cost and simplifying the process.

While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the utility model.

The technical solutions provided by the present invention are described in detail above, and the principle and the implementation of the present invention are explained in this document by applying specific examples, and the descriptions of the above examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims (7)

1. A kind of oil fume exhaust apparatus with clean function of blower system, including the blower system used for pumping and discharging the oil fume, the said blower system includes the volute and installs in the volute and can rotate along its spindle in order to pump and discharge the first impeller of the oil fume; the outer wall of the volute is provided with a hot air device, the hot air device is provided with a hot air cavity, an air inlet of the hot air cavity faces the outer part of the volute, and a mounting end of the hot air cavity penetrates through the outer wall of the volute and extends to the inner part of the volute, so that an air outlet of the hot air cavity faces the outer peripheral wall of the first impeller; the hot-blast intracavity is close to air intake one side and is equipped with the clean fan that is used for arranging hot-blast, the hot-blast intracavity is close to air outlet one side and still is equipped with the hot-blast high temperature heating member that is used for the heating to form not less than 200 ℃.

2. The lampblack exhaust equipment with the fan system cleaning function as claimed in claim 1, wherein the hot air cavity is trumpet-shaped, and the equivalent diameter of an air inlet of the hot air cavity is larger than that of an air outlet of the hot air cavity.

3. A range hood apparatus with a fan system cleaning function according to claim 1 or 2, wherein the cleaning fan is provided with a second impeller for discharging hot air so that the wind speed of the wind outlet of the hot air chamber is not less than 6 m/s.

4. The lampblack exhaust equipment with the fan system cleaning function as claimed in claim 1, wherein a heating wire is arranged in the high-temperature heating element and used for heating to form hot air at 200-300 ℃.

5. The range hood apparatus with a fan system cleaning function as claimed in claim 1, wherein a one-way valve is provided at a position where the installation end of the hot air chamber communicates with the scroll case.

6. The range hood device with the fan system cleaning function according to claim 1, wherein the wind direction of the wind outlet of the hot wind cavity is consistent with the tangential direction of the circular arc blade of the first impeller.

7. The range hood apparatus with fan system cleaning function as claimed in claim 1, wherein said hot air device is a hot air gun.

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