WO2007112651A1

WO2007112651A1 - A fume extractor of clean cycle type having cubic air curtain

Info

Publication number: WO2007112651A1
Application number: PCT/CN2007/000782
Authority: WO
Inventors: Guangyu Fan; Min Lu; Ling Fan
Original assignee: Guangyu Fan; Min Lu; Ling Fan
Priority date: 2006-03-31
Filing date: 2007-03-12
Publication date: 2007-10-11
Also published as: CN100432546C; CN1828148A

Abstract

A fume extractor (1) of clean cycle type having cubic air curtain is disclosed. The fume extractor (1) comprises an air inlet surface, an air inlet, air outlets (10-12) and a purifier (2). The purifier (2) is arranged at the air inlet and the air outlets are (10-12) arranged around the air inlet surface. The purified air is discharged to the inside through the air outlets (10-12) so that the cubic air curtain is formed.

Description

Clean cycle type range hood with three-dimensional air curtain

The present invention relates to the field of household appliances, and in particular to a cleaning cycle range hood with a three-dimensional air curtain. Background technique

At present, domestic range hoods in the domestic market are all externally arranged, and the inhaled soot is almost untreated, and is directly discharged to the outside to pollute the environment. There are also many shortcomings in use: (1) The oil smoke is not clean, although the manufacturer has continuously increased the air volume of the fan, but it has twice the power and waste of electricity; (2) the machine is easy to stick oil, it needs to be regularly removed and washed, and it takes time and effort to shorten the machine. (3) When installing, it is necessary to set up pipes in the room, punch holes in the wall, and extend the exhaust pipe at home, which is troublesome to install, which not only affects the indoor cleanliness, but also hinders the city appearance; (4) A large amount of gas venting will cause The amount of cold (heat) in indoor air conditioners is lost and power is wasted; (5) If the shared flue is used, cross-contamination between households will cause cross-contamination.

Foreign circulating range hoods have long been used, but China's cooking habits are fierce and oily, resulting in a large amount of oil, so foreign products can not meet domestic demand, not only incomplete purification, but also a very low product life. Summary of the invention

The object of the present invention is to provide a clean circulation type range hood with a three-dimensional air curtain according to the above-mentioned deficiencies of the prior art, which adopts a deep purification device and is disposed on the periphery of the air inlet surface of the air body. The air outlet forms a three-dimensional air curtain to prevent the leakage of oil fumes, improve the suction rate, and isolate the operator from the smoke, which is more sanitary.

The object of the present invention is achieved by the following technical solutions:

A clean circulation type range hood with a three-dimensional air curtain comprises a body body and an air inlet surface, an air inlet, an air outlet, a purifier, and a purifier is arranged at an air inlet inside the body, wherein the air outlet is arranged in the air body The periphery of the inlet surface, and the purifier is internally provided with a separator, a filter layer and a purification layer.

The periphery of the air inlet surface of the body includes a front upper opening of the body, and may also include left and right side openings of the body, and may also include left and right lower openings of the body.

The separator comprises at least three units, each unit consisting of a casing, a base, a baffle, and a felt pad structure. The absorbing felt pad is placed on the top of the baffle, and a narrow gap is formed between the casing and the base. When used in the home, the separator can select 5-15 units.

The filter layer is a composite structure composed of activated carbon fiber mat and separator, and the two are arranged in parallel.

The purification layer is composed of a nano photocatalyst screen and an ultraviolet lamp.

The invention has the advantages that the oil fume is first removed by the separator to remove most of the oil mist, and then the activated carbon filter layer is used to remove residual oil mist and toxic and harmful gases and odors, and then the photocatalyst purification layer is used to remove traces of toxic and harmful gases and odors, and kill bacteria. And the virus. The deeply purified gas can be directly discharged into the room after being sucked and pressurized by the fan to form an internal circulation. This is a circulating range hood. The air outlet is arranged around the air body, and the exhaust air can form a three-dimensional strong air curtain, which can prevent the smoke from leaking out, improve the suction rate, and isolate the operator from the smoke, and is more sanitary. DRAWINGS

1 is a schematic side sectional view showing an embodiment of the present invention;

2 is a schematic perspective view of an embodiment of the present invention;

3 is a schematic view showing the front structure of an embodiment of the present invention;

4 is a schematic cross-sectional structural view of a purifier according to an embodiment of the present invention;

Figure 5 is a schematic structural view of a separator cover according to an embodiment of the present invention;

6 is a schematic structural view of a base of a separator according to an embodiment of the present invention;

Figure 7 is a front elevational view of a filter layer partition plate according to an embodiment of the present invention;

Figure 8 is a top plan view of a filter layer separator in accordance with an embodiment of the present invention. detailed description

The features of the present invention and other related features will be further described in detail below by way of examples, so as to be understood by those skilled in the art - as shown in FIG. 1-8, reference numerals 1 - 24 respectively indicate: body 1, purifier 2, top cover 3 , fan 4, separator 5, activated carbon filter layer 6, photocatalyst purification layer 7, plenum 8, negative ion generator 9, vent 10, vent 11, vent 12, casing 13, baffle 14, base 15, The felt pad 16, the purification box 17, the separator 18, the activated carbon fiber mat 19, the photocatalyst web 20, the ultraviolet lamp 21, the gasket 22, the screw 23, and the slit 24.

The purifier 2 of the present embodiment is installed at the inlet of the body 1. The purifier 2 is composed of a separator 5, an activated carbon filter layer 6, and a photocatalyst purification layer 7, and the three are sequentially arranged from the inside to the outside. The separator is divided into eight units, each unit consisting of a casing 13, a baffle 14, a bottom ft 15 and a felt pad 16, and a grease felt pad 16 is placed at the top end of the baffle 14, and the cross section of the casing 13 and the base 15 is The trapezoid is formed between the two, and the cover 13 and the base 15 are positioned and connected to each other by a washer 22 and a screw 23. The width of the slit 24 can be adjusted by changing the height of the washer 22. The activated carbon filter layer is composed of an activated carbon fiber mat 19 and a separator 18, which are arranged in parallel, wherein the partition 18 is a corrugated plate. Purification photocatalyst layer is composed of nano Ti0 ₂ photocatalyst screen 20 and the ultraviolet lamp 21 composition. The purifier 2 is placed in a box shape in the plenum 8, and the purifier 2 is followed by a negative ion generator 9.

The separator operates on the principle of "inertial separation" or "impact de-fogging". During operation, the flue gas is accelerated downward through the slit 24 formed between the casing 13 of the separator 5 and the base 15 to expand several times. The space, the speed is slowed down and is restricted by the bottom plate of the casing 13 and the baffle 14, and the head is turned upward. Due to the sharp change of speed and direction, the oil droplets in the flue gas will increase and rush toward the bottom plate of the casing 13 due to inertia and gravity. It is collected on the surface of the baffle 14, and when it is accumulated to a certain amount, it will slide down the inclined surface into the oil cup. When the smoke of the larger oil droplets moves up along the baffle 14, it is blocked by the oil-absorbing felt pad 16 at the top of the baffle 14, and the oil-absorbing felt pad 16 is made of a highly oil-absorbing material, and the flue gas is in the process of impact. The smaller oil droplets are also adsorbed, so the flue gas leaving the separator 5 is substantially oil-free, and then enters the activated carbon filter layer 6. When the flue gas contacts the activated carbon fiber felt 19, a small amount of oil mist and various toxic and harmful gases remain. The odor is adsorbed and removed, and then enters the purification layer 7, and the nano-Ti0 ₂ photocatalyst screen 20 equipped with the ultraviolet lamp 21 further removes trace amounts of toxic and harmful gases and odors in the flue gas, and kills bacteria and viruses. At this point, the deep-purified gas carrying air negative ions are pumped and pressurized by the fan 4, and then the upper opening 10 of the body 1, the left and right openings 11, and the left and right lower openings 12 are discharged to form a three-dimensional strong air curtain. Effectively prevent the leakage of smoke. The air curtain formed by the upper opening 10 also serves to isolate the operator from the flue gas and is more sanitary. After purging, the gas is re-inhaled along with the flue gas, forming an internal circulation.

The slanted arrangement of the flue gas suction surface of the embodiment can greatly reduce the machine installation height without encountering the head, and is advantageous for improving the soot suction rate. Moreover, the surface area oil will also fall down smoothly into the oil cup, and will not drip to the cooking surface, which will affect the hygiene.

In summary, the present invention provides a clean circulation type range hood with a three-dimensional air curtain suitable for Chinese cooking habits, which can completely purify the flue gas, eliminate pollution, and protect the environment. It has many advantages: It can ensure oil-free inside, and it is really free of washing and unloading, which saves time and labor and prolongs the service life of the machine. It also avoids the increase of noise and power consumption caused by viscous oil: no smoke on the wall, no pipes in the room, easy installation, good for indoor cleanliness, beautify the cityscape; no large amount of gas venting, can avoid the cold (heat) amount of indoor air conditioner Mass Loss, save electricity; for new homes, you can save a shared flue, save costs, and avoid cross-contamination between households; not affected by wind, sand, rain and snow; due to sterilization and called "air vitamins" The presence of air negative ions makes the indoor air healthier and fresher. Since most of the oil mist in the flue gas is removed in the separator, the activated carbon fiber has a long service life and can be recycled and reused. The photocatalyst can be regenerated on its own and used for a long time. Since the oil absorbing felt has a suction ratio of up to ten times, it can also be used for a long time. Once saturated, it can be replaced with fuel, without secondary pollution, and the price is low, and the replacement is extremely convenient. It can be seen that the invention has the characteristics of cleanness, environmental protection, energy saving, long life, convenient use, and economical comprehensive performance.

Claims

Claim

1. A clean circulating range hood with a three-dimensional air curtain comprises a body and an air inlet surface, an air inlet, an air outlet, a purifier, and a purifier is arranged at an air inlet inside the body, wherein the air outlet is arranged At the periphery of the air inlet surface of the body, and the inside of the purifier is provided with a separator, a filter layer and a purification layer.

2. A cleaning cycle range hood with a three-dimensional air curtain according to claim 1, wherein the periphery of the air inlet surface of the body comprises a front upper opening of the body.

3. A clean cycle range hood with a three-dimensional air curtain according to claim 1, wherein the periphery of the air inlet surface of the body comprises left and right pupils of the body.

4. The cleaning cycle smoking machine with a three-dimensional air curtain according to claim 1, wherein the periphery of the air inlet surface of the body comprises left and right lower openings of the body.

5. A three-dimensional air curtain cleaning cycle smoking machine according to claim 1, wherein said separator comprises at least three units, each unit consisting of a casing, a base, a baffle, and a wicking felt. The pad is formed, and the oil-absorbing felt pad is placed at the top of the baffle, and a narrow slit is formed between the cover and the base.

6. A cleaning cycle smoking machine with a three-dimensional air curtain according to claim 5, wherein said separator comprises 5-15 units.

7. The cleaning cycle smoking machine with a three-dimensional air curtain according to claim 1, wherein the filter layer is a composite structure composed of an activated carbon fiber mat and a separator, and the two are arranged in parallel.

8. A cleaning cycle smoking machine with a three-dimensional air curtain according to claim 7, wherein said partition is corrugated. '

9. The cleaning cycle smoking machine with a three-dimensional air curtain according to claim 1, wherein the purification layer is composed of a nano photocatalyst screen and an ultraviolet lamp.

10. A cleaning cycle smoking machine with a three-dimensional air curtain according to claim 1, wherein a negative ion generator is disposed inside the body and after the purifier is provided.