CN111706889A - Zero emission range hood - Google Patents

Abstract

The invention discloses a zero-emission type range hood, comprising a range hood main body, the range hood main body comprising: a negative pressure air chamber, which has an oil fume inlet and a discharge port; a negative pressure generating mechanism, which is connected with the negative pressure air chamber The air pressure chamber is connected, and is used at least to form a negative pressure environment in the negative pressure air chamber; the oil fume purification mechanism is arranged in the negative pressure air chamber, and the oil fume purification mechanism includes an oil fume fuming mechanism and an oil fume filtering mechanism, The oil fume vaporization mechanism is connected with the oil fume inlet of the negative pressure air chamber, and can convert the oil fume introduced from the oil fume inlet into the oil fume filtering mechanism. The zero-emission type range hood of the present invention can filter the oil fume internally, so as to achieve zero emission of oil fume, which is conducive to purifying people's living environment; and the device has simple structure, low processing cost, simple material selection and low price, and is beneficial to the purification of people's living environment. Widespread promotion.

Description

Zero emission range hood

technical field

The invention relates to a range hood, in particular to a zero-emission type range hood, and belongs to the technical field of machinery.

Background technique

With the development of science and technology and the improvement of human living standards, human beings have higher and higher requirements for environmental quality. The range hood can quickly remove the harmful gases burned by the stove and a large amount of oil fumes generated in the cooking process, and discharge them outdoors to reduce Indoor pollution, purify indoor air.

However, with the densification of population and towns, although the outdoor exhaust range hoods purify the home environment, they pollute the air in the city. Therefore, the preparation of a low-cost, easy-to-operate, easy-to-install, and zero-emission range hood has become a The focus of the current study.

SUMMARY OF THE INVENTION

Aiming at the shortcomings of the existing range hoods that discharge the oil fume to the outside to cause air pollution, the main purpose of the present invention is to provide a zero-emission type range hood, which can not only remove the indoor oil fume, but also does not discharge it to the outdoors, The structure is simple, the use cost is low, and the operation is simple.

In order to realize the foregoing invention purpose, the technical scheme adopted in the present invention includes:

An embodiment of the present invention provides a zero-emission range hood, including a range hood body, and the range hood body includes:

A negative pressure air chamber, which has an oil fume inlet and a discharge port,

a negative pressure generating mechanism, which is connected to the negative pressure air chamber and is at least used to form a negative pressure environment in the negative pressure air chamber,

An oil fume purification mechanism, which is arranged in the negative pressure air chamber, the oil fume purification mechanism includes an oil fume gasification mechanism and an oil fume filter mechanism, the oil fume gasification mechanism is connected with the oil fume inlet of the negative pressure air chamber, and can connect the oil fume inlet from the oil fume inlet. After the introduced oil fume is vaporized, it is introduced into the oil fume filter mechanism.

Further, the filtering mechanism includes an accommodating mechanism for accommodating water, and the atomization outlet end of the oil mist atomization mechanism faces the water surface or the atomization outlet end of the oil mist atomization mechanism is disposed below the water surface.

Further, the oil mist atomizing mechanism includes an oil mist atomizer and an atomizing nozzle connected to the oil mist atomizer, the oil mist atomizer is connected to the oil mist inlet of the negative pressure air chamber, and the atomizing nozzle faces the water surface or The atomizing nozzle is arranged below the water surface.

Further, the oil mist atomizer and the atomizing nozzle are connected through an arc-shaped connecting pipe (for example, a semi-circular elbow).

Further, the zero-emission type range hood further includes: a condensed oil collection mechanism, the condensed oil collection mechanism includes a flow guide mechanism and a collection mechanism, and the flow guide mechanism is arranged below the oil fume inlet of the negative pressure air chamber, Part of the oil fume in contact with the guide mechanism can condense to form condensed oil, and the condensed oil can enter the collection mechanism along the guide mechanism; Hydrophobic oil-absorbing sponge inside the mechanism.

Further, the guide mechanism includes a guide plate, the collection mechanism includes a condensed oil collection groove, the hydrophobic oil-absorbing sponge is a sponge treated with perfluorosiloxane, and the condensed oil collection groove is arranged on the guide plate. The end of the guide plate is inclined, so that the condensed oil on the guide plate can be guided into the condensed oil collection tank under the action of gravity.

Further, the processing method of the sponge includes: soaking the sponge in an ethanol solution of perfluorosiloxane for 1 hour, and drying the sponge at 80°C.

Further, the main body of the range hood includes an outer casing, an isolation plate is arranged in the outer casing, the isolation plate is sealedly connected with the outer casing, and then the negative pressure air chamber is formed above the isolation plate. , the oil fume inlet is provided on the isolation plate, the discharge port is provided on the outer casing; the flow guiding mechanism is arranged under the isolation plate and connected with the outer casing, and the collection mechanism is The outer casing is detachably connected.

Further, the accommodating mechanism is integrally arranged with the negative pressure air chamber, the water used for filtering oil fume is arranged above the isolation plate, the height of the water surface in the negative pressure air chamber does not exceed the height of the oil smoke atomizer, and the atomization The vertical distance between the nozzle and the isolation plate is 0.2-1mm.

Further, the outer casing is also provided with a water inlet that communicates with the negative pressure air chamber, and an on-off valve is arranged on the water inlet; the outer casing is also provided with waste oil that communicates with the condensed oil collection tank. A discharge port is provided with an on-off valve on the waste oil discharge port.

Further, the negative pressure generating mechanism includes a vacuum exhauster disposed at the discharge port, and the vacuum exhauster includes a fixed shaft of the vacuum exhauster and a blade arranged on the fixed shaft of the vacuum exhauster.

Further, the main body of the range hood further includes a control assembly, and the control assembly is connected with the negative pressure generating mechanism and the cooking fume purification mechanism.

Further, the filtration and interception rate of the zero-emission type range hood to oil fume is 98-100%.

Compared with the prior art, the zero-emission type range hood of the present invention can filter the oil fume internally, and the filtering and interception rate of the oil fume is 98-100%, which achieves zero emission of oil fume and is beneficial to purifying the living environment of the people; In addition, the device is simple in structure, low in processing cost, simple in material acquisition, and low in price, which is favorable for wide-scale popularization.

Description of drawings

1 is a schematic structural diagram of a zero-emission range hood provided by the present invention and a typical implementation case;

2 is a schematic diagram of the internal structure of a zero-emission range hood provided by the present invention and a typical implementation case;

Description of reference numerals: 1-discharge port, 2-water inlet, 3-waste oil discharge port, 4-condensed oil collection tank, 5-hydrophobic oil-absorbing sponge, 6-deflector plate, 7-isolation plate, 8-atomization Nozzle, 9-oil mist vaporizer, 10-water, 11-vacuum extractor blade, 12-vacuum extractor fixed shaft.

Detailed ways

In view of the deficiencies in the prior art, the inventor of the present application was able to propose the technical solution of the present invention after long-term research and extensive practice. The technical solution, its implementation process and principle will be further explained as follows.

Please refer to FIG. 2 , as a typical case of the present invention, it involves a zero-emission range hood, which can be fixed 0.5 to 1 m above the kitchen stove. The zero-emission range hood provided by the present invention Including the main body of the range hood, the main body of the range hood includes an outer casing, and an isolation plate 7 is arranged inside the outer casing. 7 is provided with a plurality of oil fume inlets, and each oil fume air inlet is sealed with an oil fume atomizer 9, and an outlet of the oil fume atomizer located in the negative pressure air chamber is also connected with an atomizing nozzle 8, and the oil fume atomizer 9 The oil mist can be atomized and then sprayed out by the atomizing nozzle 8; a discharge port 1 is formed above the outer casing, and a vacuum extractor is installed in the discharge port. External oil fume is inhaled, and clean water 10 for filtering oil fume is placed in the negative pressure chamber. The height of the water surface does not exceed the height of the oil fume vaporizer 9, so as to prevent water from being poured back into the isolation plate 7 along the atomizing nozzle 8 and causing pollution to the food , the atomizing nozzle 8 faces the water surface; a condensed oil guide plate 6 and a condensed oil collection groove 4 are also provided below the isolation plate 7, the condensed oil guide plate 6 is fixedly connected with the outer casing, and the condensed oil guide plate 6 is inclined The condensed oil collection tank 4 is detachably arranged at the lowest end of the outer shell, and part of the oil fume can condense on the condensed oil guide plate 6 to form condensed oil, and flow into the condensed oil collection tank 4 under the action of gravity; the condensed oil collection tank 4 is provided on the periphery of the condensed oil deflector 6 .

Specifically, the oil mist atomizer and the atomizing nozzle are connected by a semi-circular elbow, so that the atomizing nozzle is perpendicular to the isolation plate, which ensures that the atomizing nozzle 8 is below the water surface and the water cannot flow back through the oil mist atomizer. Below the isolation plate, the vertical distance between the atomizing nozzle 8 and the isolation plate 7 is 1mm, so that the atomized oil fume ejected by the atomizing nozzle 8 hits the isolation plate 7 to produce secondary atomization, which increases the contact area with water, and then increases The amount of oil fumes absorbed by water.

Specifically, the condensed oil collection tank 4 is arranged at the bottom end of the outer casing, and the condensed oil collection tank 4 is provided with a hydrophobic oil-absorbing sponge 5, and the hydrophobic oil-absorbing sponge 5 is a sponge treated with perfluorosiloxane to achieve a hydrophobic oil-absorbing effect. .

Preferably, the method for treating the sponge includes: soaking the sponge in an ethanol solution of perfluorosiloxane for 1 hour, and drying the sponge at 80°C.

Specifically, the isolation plate is seamlessly welded on the outer casing to ensure its sealing performance, so that the oil fume under the isolation plate can enter the negative pressure air chamber from the oil mist vaporizer 9 and the atomizing nozzle 8 .

Specifically, the upper part of the outer casing is also provided with a water inlet 2 that communicates with the negative pressure air chamber, and water can be injected into the negative pressure air chamber through the water inlet 2; the lower part of the outer casing is also provided with waste oil that communicates with the condensed oil collection tank 4 Discharge port 3, the condensed oil in the condensed oil collection tank 4 can be discharged from the waste oil discharge port 3.

Specifically, the vacuum pump includes a vacuum pump fixed shaft 12 fixed on the outer casing and a vacuum pump blade 11 arranged on the vacuum pump fixed shaft.

Specifically, the main body of the range hood also includes a control component and a power supply component. The control component is connected to the power supply component, the vacuum extractor, the oil mist vaporizer 9 and the atomizing nozzle 8. The control component can be an existing control component. For example, the control board, etc., the numerical control program and circuit structure used therein can adopt the existing structure and can be obtained through commercial purchase. The specific structures of the oil mist atomizer, the atomizing nozzle 8 and the condensed oil deflector 6 are not specifically limited, and they can all be obtained commercially.

More specifically, before the zero-emission range hood works, first inject clean water into the negative pressure air chamber, close the water inlet and waste oil discharge port 3, and remove the space above the isolation plate 7 through the rotation of the vacuum extractor blade 11. It is drawn into a negative pressure state, whereby the oil fume generated by the stove enters the negative pressure air chamber through the oil fume atomizer 9 and the atomizing nozzle 8, and the oil fume atomizer 9 atomizes the oil fume and is sprayed by the atomizing nozzle 8 , the sprayed and atomized oil fume contacts with water 10 and is discharged into the atmosphere; the oil fume that does not enter the negative pressure air chamber contacts the condensed oil deflector 6 to form condensed oil, and the condensed oil is introduced along the condensed oil deflector 6 In the condensed oil collection tank 4, the hydrophobic oil-absorbing sponge 5 arranged in the condensed oil collection tank 4 can absorb the condensed oil, and the mixed water can be led out from the waste oil discharge port or the condensed oil collection tank 4 can be removed and poured out. The hydrophobic oil-absorbing sponge 5 When it reaches saturation, it can be taken out and squeezed and then put back into the condensed oil collection tank 4.

Compared with the prior art, the zero-emission type range hood of the present invention can filter the oil fume inside to achieve zero emission of oil fume, which is beneficial to purify people's living environment; and the device has a simple structure, low processing cost, and is made of materials at the same time. Simple, inexpensive, and conducive to large-scale promotion.

It should be understood that the above-mentioned embodiments are only intended to illustrate the technical concept and characteristics of the present invention, and the purpose thereof is to enable those who are familiar with the art to understand the content of the present invention and implement it accordingly, and cannot limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. The utility model provides a zero release formula smoke ventilator, includes the smoke ventilator main part, its characterized in that, the smoke ventilator main part includes:

a negative pressure air chamber which is provided with an oil smoke inlet and an exhaust port,

a negative pressure generating mechanism connected with the negative pressure air chamber and at least used for forming a negative pressure environment in the negative pressure air chamber,

and the oil fume purification mechanism is arranged in the negative pressure air chamber and comprises an oil fume atomization mechanism and an oil fume filtering mechanism, and the oil fume atomization mechanism is connected with an oil fume inlet of the negative pressure air chamber and can atomize the oil fume introduced from the oil fume inlet and then introduce the atomized oil fume into the oil fume filtering mechanism.

2. The zero emission range hood of claim 1, wherein: the filtering mechanism comprises an accommodating mechanism for accommodating water, and the atomization outlet end of the oil smoke atomization mechanism faces the water surface or is arranged below the water surface.

3. The zero emission range hood of claim 2, wherein: the oil smoke atomization mechanism comprises an oil smoke atomizer and an atomization nozzle connected with the oil smoke atomizer, the oil smoke atomizer is connected with an oil smoke inlet of the negative pressure air chamber, and the atomization nozzle faces the water surface or is arranged below the water surface.

4. The zero emission range hood of claim 3, wherein: the oil smoke atomizer is connected with the atomizing nozzle through an arc-shaped connecting pipe.

5. The zero emission range hood of claim 3, further comprising: the condensed oil collecting mechanism comprises a flow guide mechanism and a collecting mechanism, the flow guide mechanism is arranged below the oil smoke inlet of the negative pressure air chamber, part of oil smoke in contact with the flow guide mechanism can be condensed to form condensed oil, and the condensed oil can enter the collecting mechanism along the flow guide mechanism; the collecting mechanism comprises an accommodating mechanism capable of accommodating condensed oil and a hydrophobic oil absorption sponge arranged in the accommodating mechanism.

6. The zero emission range hood of claim 5, wherein: the flow guide mechanism comprises a flow guide plate, the collection mechanism comprises a condensed oil collection tank, and the hydrophobic oil absorption sponge is sponge treated by perfluorosiloxane; the condensed oil collecting tank is arranged at the end part of the guide plate; wherein the guide plate is obliquely arranged so that the condensed oil on the guide plate can be guided into the condensed oil collecting tank under the action of gravity.

7. The zero-emission range hood according to claim 5, wherein the range hood body comprises an outer shell, a partition plate is arranged in the outer shell, the partition plate is hermetically connected with the outer shell, the negative pressure air chamber is formed by partitioning above the partition plate, the oil smoke inlet is arranged on the partition plate, and the discharge port is arranged on the outer shell; the flow guide mechanism is arranged below the isolation plate and connected with the outer shell, and the collection mechanism is detachably connected with the outer shell.

8. The zero emission range hood of claim 7, wherein: the containing mechanism and the negative pressure air chamber are integrally arranged, water for filtering oil smoke is arranged above the isolation plate, the height of the water surface in the negative pressure air chamber is not more than that of the oil smoke atomizer, and the vertical distance between the atomizing nozzle and the isolation plate is 0.2-1 mm.

9. The zero emission range hood of claim 8, wherein: the shell is also provided with a water inlet communicated with the negative pressure air chamber, and the water inlet is provided with a switch valve; the shell body is further provided with a waste oil discharge port communicated with the condensed oil collecting tank, and the waste oil discharge port is provided with a switch valve.

10. The zero emission range hood of claim 1, wherein: the negative pressure generating mechanism comprises a vacuum air pump arranged at the discharge port, and the vacuum air pump comprises a vacuum air pump fixing shaft and blades arranged on the vacuum air pump fixing shaft; and/or the range hood main body further comprises a control assembly, and the control assembly is connected with the negative pressure generating mechanism and the oil smoke purifying mechanism; and/or the zero-emission range hood has a filtering interception rate of 98-100% for oil smoke.

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