WO2008119213A1 - Filtre à fumée d'huile - Google Patents

Filtre à fumée d'huile Download PDF

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Publication number
WO2008119213A1
WO2008119213A1 PCT/CN2007/002509 CN2007002509W WO2008119213A1 WO 2008119213 A1 WO2008119213 A1 WO 2008119213A1 CN 2007002509 W CN2007002509 W CN 2007002509W WO 2008119213 A1 WO2008119213 A1 WO 2008119213A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
soot
plate
layer
filter plate
Prior art date
Application number
PCT/CN2007/002509
Other languages
English (en)
Chinese (zh)
Inventor
Zhongqun Mao
Original Assignee
Ningbo Fotile Kitchen Ware Co., Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Fotile Kitchen Ware Co., Ltd filed Critical Ningbo Fotile Kitchen Ware Co., Ltd
Publication of WO2008119213A1 publication Critical patent/WO2008119213A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
    • B01D45/06—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by reversal of direction of flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2035—Arrangement or mounting of filters

Definitions

  • the invention relates to a soot filter device for a range hood. Background technique
  • soot filter device installed at the air inlet of the range hood:
  • the first is to use one or more layers of dense filters made of filaments to complete the filtration through the micropores.
  • the pore size of the mesh is always much larger than the diameter of the oil droplets contained in the soot, the ability to filter the soot is limited, and the smaller the mesh, the more easily the surrounding of the mesh accumulates oil and the mesh is narrowed or even blocked. It seriously affects the air intake of the range hood, thus affecting the total soot removal effect of the range hood. More importantly, these filters are difficult to clean after being stained with oil, so that users are not bothered, so they can only be replaced after a period of use and the cost of use is high.
  • the second type is a single-layer orifice plate filter device
  • the orifice plate is a flat plate, that is, the edge of the hole is flush with the plate surface on which it is located, as shown in Fig. 1, the plate has a long waist hole, when the air flow (powed soot) Wind)
  • the air flow powed soot
  • Wind When entering the long waist hole, on the two sides of the hole, a large number of vortices are generated, and the vortex increases the noise.
  • the actual vent area is greatly reduced for the viscous fluid, so that the air volume is reduced more, and the air volume using the filter device will be lost by 10-15%.
  • the noise is large.
  • the third type is a filtering device in which a perforated plate and a filter are superimposed, and this structure has the disadvantages of both.
  • the fourth type is a soot filter device which uses a two-layer inverted button filter plate, which is commonly used in the United States and the United States, such as the U.S. Patent No. 4,944,782 and the German Patent No. DE 40 16 582 A1.
  • the two layers of filter plates are staggered, and the flat plate faces are provided with long flanged holes, and the flanges on the upper and lower plates are opposite to each other.
  • the flow path formed by the side hole is matched with the air flow, so that the vortex can be reduced, and the filter plate disposed in the second layer relative to the misalignment blocks the passage of the sound directly outward, which has the effect of reducing noise.
  • the channel, the tortuous channel and the plate hole after turning (generating vortex) have two obstacles, which makes the air loss of the soot filter device of this structure large, even if the distance of the two-layer filter plate is adjusted (two-layer spacing 2 dishes -1011 dishes) ), the air volume is still 3 ⁇ 5m 3 /min compared to the single-layer plate filter, and the air loss is as high as 30%.
  • the tortuous air flow channel and the relationship between the direction of the airflow change and the vortex at the bend, so the air volume loss of the soot filter device is Large, but the filtering effect of the soot gas entering the range hood is relatively good. In general, this method is greatly reduced due to the reduction of the intake of the soot gas (the amount of air is reduced too much), so that the comprehensive performance of the range hood of the range hood is greatly reduced.
  • the main technical problem to be solved by the present invention is to provide a soot filter device having a good soot filtering effect and a small loss of air volume in view of the state of the art.
  • the present invention adopts the following technical solutions:
  • the soot filter device comprises at least two filter plates, the filter plate is provided with ventilation holes, and the ventilation holes of the adjacent two filter plates are arranged offset from each other, wherein the periphery of the ventilation holes is formed with a flange, and The flanging holes of all the venting holes on the filter plate are oriented toward the inside of the range hood.
  • the number of layers of the filter plate is preferably two.
  • the filter plate may be either a curved shape or a planar shape, but is preferably a planar shape from the viewpoint of ease of manufacture and mounting.
  • the vent hole may be a circular hole, an elliptical hole, a square hole, or the like, or may be a long hole, but is preferably elongated in view of manufacturing, air volume, oil collection, and the like.
  • the cross-sectional shape of the wall between adjacent ventilation holes on the filter plate is curved, which is favorable for smooth flow of the soot, increasing the air volume, reducing the vortex, and reducing the noise.
  • the width of the vent hole is preferably 2 to 20 mm.
  • the curl of the vent hole preferably has a twist of 1 to 8 mm.
  • the gap between the adjacent two layers of the filter plates is preferably from 1 to 5 mm.
  • the filter plates are arranged obliquely with respect to a horizontal plane, and thus the wall between adjacent venting holes on the filter plates are arranged obliquely to facilitate directing oil to the oil collecting cup.
  • the width of the wall between the adjacent vent holes on the upper filter plate is Width +0 ⁇ 5 mm corresponding to the vent hole on the lower filter plate, that is, the upper slab wall is equal to or slightly larger than the lower layer.
  • the width of the venting hole is beneficial to the appearance, and is also beneficial for improving the filtering effect of the sleeve smoke, and is beneficial for effectively blocking the direct transmission of the internal noise of the range hood. On this basis, it is preferred that the width and spacing of the vent holes on each of the filter plates in each layer are equal.
  • the air volume is increased, and at the same time, the filtering device of the air inlet is used to filter the soot gas.
  • the present invention uses a double-layer or double-layer or more misaligned filter plate device, because the flow line and the double-layer filter plate in the flow process The shape is basically the same, the vortex at the shell is not, and the resistance is much smaller than the flat plate.
  • the gap of the double filter plate such as lmm ⁇ 5mm
  • the air volume can be increased by 0.3 ⁇ 1.5m 3 /min than the plate filter.
  • the wind resistance is extremely small, and the air loss is only 3 ⁇ 10%.
  • the double-layer filter plate blocks the path of direct noise transmission, the transmitted noise is the second-generation wavelet sound, which is not a direct sound, so it has the effect of reducing noise.
  • the filtering of the soot gas of the invention mainly adopts the method of surface filtering.
  • the soot gas condenses and adheres to the surface of the filter plate, and the double-layer filter plate hinders the air change.
  • the direction is twice, so the filtering effect far exceeds the single-layer plate filter, which is basically the same as the double-layer relative-displacement filter. Therefore, the fume entering the fan system is much less than the single-layer plate filter, which prolongs the maintenance-free time of the fan system. .
  • the long strip of filter strip ie the slab wall
  • the long strip of filter strip can directly introduce oil droplets into the oil collection area at the lower part of the filter screen, and there is no risk of clogging between the double-sided filter screens (air flow passages) that are misaligned in the same direction, and the range hood can be ensured. Long-term normal use.
  • the soot filter device adopting the technology of the present invention can effectively improve the performance of the range hood, and has a better filtering effect, and can effectively extend the maintenance-free time of the fan system of the range hood.
  • R x umx / v
  • urn a deceleration starting point velocity, incoming velocity, ue a velocity velocity at the boundary of the boundary layer
  • S-constant generally taken as 0. 35
  • X The distance separating the point, the distance from the starting point of the moving boundary layer, and the starting point is taken at the last layer of the damping net in the stable section upstream of the contraction section.
  • the flow separation produces an irrational vortex discriminant
  • boundary conditions are no-slip conditions at the solid interface, and boundary conditions for flow rate and pressure are given at both the inlet and outlet. But in fact, such a significant difference, without having to make so many complicated calculations, the inventive scheme is obviously more than Figure 1.
  • Figure 1 is a partial structural sectional view of a conventional single-layer apertured plate type filtering device
  • FIG. 2 is a partial structural sectional view of a conventional double-layer inverted-type perforated plate type filtering device
  • Figure 3 is a partial structural sectional view of the filtering device of the present invention.
  • FIG. 4 is a perspective exploded view of the first embodiment of the present invention.
  • FIG. 5 is a perspective exploded view of another embodiment of the present invention in another direction
  • Figure 6 is a bottom view of the first embodiment of the present invention.
  • Figure 7 is a partial structural sectional view showing a double-layer filter plate according to an embodiment of the present invention.
  • Figure 8 is a cross-sectional view showing a partial structure of a double-layer filter plate according to an embodiment of the present invention.
  • Figure 9 is a cross-sectional view showing a partial structure of a three-layer filter plate according to an embodiment of the present invention. detailed description
  • the soot filter device of the present embodiment has a rectangular funnel shape as a whole, and each side is a two-layer structure composed of two layers of planar filter plates 1, and thus the filter plate 1 is opposed to the horizontal plane.
  • the arrangement is inclined, that is to say that the wall 3 between adjacent venting holes 2 on the filter plate 1 is arranged obliquely.
  • the filter plate 1 is provided with a long ventilating hole 2, and the width and spacing of the vent holes 2 on the two filter plates 1 are equal, and the vent holes 2 on the two filter plates 1 are arranged offset from each other.
  • the periphery of the vent hole 1 is formed with a flange 31, and the flange 31 of the vent hole 2 on all the filter plates 1 is oriented toward the inside of the range hood.
  • the cross-sectional shape of the wall 3 between the adjacent vent holes 2 on the filter plate 1 is curved.
  • the width of the vent hole 2 is 7.4 mm, and the height H of the burr 31 of the vent hole 2 is 3 mm.
  • the gap M between the two filter plates 1 is 2.5 mm.
  • the width of the wall 3 between the adjacent vent holes 2 on the upper filter plate 1 is larger than the width of the corresponding vent hole 2 on the lower filter plate 1 by 1 mm.
  • the air volume is increased by 0.7m 3 /min than the single-layer plate filter, the wind resistance is extremely small, and the air loss is only 6%.
  • the soot filter unit of the two-layer inverted button filter plate is increased by 4 m 3 /min.
  • the noise is much lower than the two-layer reverse button filter fume filter, which is 0.5dB lower than the single-layer plate filter.
  • the soot filter device of the present embodiment is basically the same as the fume filter device of the first embodiment, except that the shape and related dimensions of the wall 3 between adjacent vent holes 2 on the filter plates 1 are different.
  • the cross section of the wall 3 between the adjacent ventilation holes 2 on the filter plate 1 is a straight line segment and a curved flange 31 extends at both ends of the straight section, and the width of the ventilation hole 2 is 10 mm, which is ventilated.
  • the height H of the flange 31 of the hole 2 is 5 mm, and the gap M between the two filter plates 1 is 4 mm; in the two-layer filter plate 1, the width ratio of the wall 3 between the adjacent ventilation holes 2 on the upper filter plate 1 The width of the corresponding ventilation hole 2 on the lower filter plate 1 is 5 mm.
  • the air volume is increased by 0.1m 3 /min than the single-layer plate filter, the wind resistance is very small, and the air loss is only 10%, which is 3m 3 /min higher than the soot filter device of the two-layer inverted button filter plate.
  • the noise is much lower than that of the two-layer reverse-opening filter plate, which is 0.2dB lower than that of the single-layer plate filter.
  • the soot filter device of the embodiment is basically the same as the fume filter device of the first embodiment, and the difference is only that the shape and related size of the wall 3 between the adjacent ventilation holes 2 on the filter plates 1 are different. And the width and spacing of the venting holes 2 on the two-layer filter plate are different.
  • the cross section of the wall 3 between the adjacent ventilation holes 2 on the filter plate 1 is a straight line segment and an arc-shaped flange 31 extends at both ends of the straight section, and the ventilation hole 2 of the upper filter plate 1 is
  • the width is lmm
  • the height of the flange 31 of the vent hole 2 is 2
  • the width of the vent hole 2 on the lower filter plate 1 is 8 mm
  • the height of the flange 31 of the vent hole 2 is 4 mm
  • the gap between the two filter plates 1 is M 5mm
  • the width of the wall 3 between the adjacent ventilation holes 2 on the upper filter plate 1 is larger than the width of the corresponding ventilation hole 2 on the lower filter plate 1 by 3 mm.
  • the air volume is increased by 0.1m 3 /min than the single-layer plate filter, the wind resistance is very small, and the air loss is only 10%, which is 3m 3 /min higher than the soot filter device of the two-layer inverted button filter plate.
  • the noise is much lower than the soot filter of the two-layer inverted-open filter plate, which is 0.2dB lower than the single-layer plate filter.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

L'invention concerne un filtre à fumée d'huile qui comprend au moins deux couches de plaques filtrantes (1) munies d'évents (2). Les évents des plaques filtrantes (1) contiguës sont imbriqués les uns aux autres. Tous les bords (31) autour des évents (2) sont retournés s'orientant vers l'intérieur du filtre à fumée d'huile.
PCT/CN2007/002509 2007-03-29 2007-08-20 Filtre à fumée d'huile WO2008119213A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 200710067836 CN101033865B (zh) 2007-03-29 2007-03-29 一种油烟过滤装置
CN200710067836.3 2007-03-29

Publications (1)

Publication Number Publication Date
WO2008119213A1 true WO2008119213A1 (fr) 2008-10-09

Family

ID=38730534

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/002509 WO2008119213A1 (fr) 2007-03-29 2007-08-20 Filtre à fumée d'huile

Country Status (3)

Country Link
CN (1) CN101033865B (fr)
MY (1) MY144267A (fr)
WO (1) WO2008119213A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107965811A (zh) * 2017-04-26 2018-04-27 宁波方太厨具有限公司 一种用于吸油烟机的多级过滤装置
CN108072070A (zh) * 2017-07-28 2018-05-25 宁波方太厨具有限公司 油烟过滤组件及应用有该油烟过滤组件的吸油烟机
CN108443924A (zh) * 2018-03-07 2018-08-24 佛山市云米电器科技有限公司 一种带非平面过滤装置的油烟机
CN109028246A (zh) * 2018-10-18 2018-12-18 杭州老板电器股份有限公司 油网及油烟机
CN109011982A (zh) * 2018-08-24 2018-12-18 城林环保技术（上海）有限公司 一种具有降噪功能的含月牙形管栅结构的拦油装置
CN109405002A (zh) * 2017-08-16 2019-03-01 宁波方太厨具有限公司 一种吸油烟机及其控制方法
CN109990360A (zh) * 2019-04-19 2019-07-09 杭州德意电器股份有限公司 一种油烟机的仿生油烟净化滤网
CN110385000A (zh) * 2019-07-30 2019-10-29 杭州德意电器股份有限公司 一种双层分布结构的油烟机内置滤网及过滤方法
CN110486764A (zh) * 2019-08-12 2019-11-22 宁波方太厨具有限公司 一种吸油烟机
CN113932268A (zh) * 2021-11-10 2022-01-14 朱伟军 一种油烟分离网结构及吸油烟机

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CN102109194A (zh) * 2009-12-28 2011-06-29 樱花卫厨（中国）股份有限公司 新型油网
CN101813332B (zh) * 2010-04-01 2016-06-08 宁波方太厨具有限公司 一种下吸式吸油烟机
CN101936565A (zh) * 2010-09-08 2011-01-05 樱花卫厨（中国）股份有限公司 吸油烟机油网装置
CA3077183C (fr) * 2013-06-14 2021-03-02 Jordan SALPIETRA Filtres, supports et procedes de montage de filtres
CN107314409B (zh) * 2016-04-27 2020-07-10 博西华电器（江苏）有限公司 抽油烟机及其过滤装置
CN108006739B (zh) * 2017-06-07 2024-01-16 宁波方太厨具有限公司 一种吸油烟机
CN107166465A (zh) * 2017-07-05 2017-09-15 中山市亲乐厨具有限公司 一种集成灶的吸排风通道
CN107178812A (zh) * 2017-07-27 2017-09-19 浙江大昱环保科技有限公司 一种油烟静态降温拦截净化***
CN107990389A (zh) * 2018-01-17 2018-05-04 浙江大昱环保科技有限公司 一种内循环零排放油烟净化***
CN110617514B (zh) * 2018-06-19 2023-01-17 博西华电器（江苏）有限公司 抽油烟机
CN109140558A (zh) * 2018-10-11 2019-01-04 浙江建设职业技术学院 一种抽油烟机烟气制热装置及方法
CN110030596A (zh) * 2019-04-10 2019-07-19 佛山市顺德区美的洗涤电器制造有限公司 用于吸油烟机的过滤组件和具有其的吸油烟机
CN110440321A (zh) * 2019-07-16 2019-11-12 林庆森 烟道油脂分离器及其吸油烟机
CN113719872B (zh) * 2021-08-31 2023-05-26 宁波方太厨具有限公司 一种吸油烟机及其控制方法

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WO1991017813A1 (fr) * 1990-05-23 1991-11-28 Rentschler Reven-Lüftungssysteme GmbH Separateur pour liquides provenant d'un flux de gaz, en particulier pour brumes d'huile
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CN1416936A (zh) * 2002-12-05 2003-05-14 成都炉莱特尔净化技术实业有限公司 油烟过滤板
CN1693762A (zh) * 2005-04-11 2005-11-09 马利华 油烟净化罩及其油烟净化器
CN2832272Y (zh) * 2005-05-25 2006-11-01 周达 过滤装置

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WO1991017813A1 (fr) * 1990-05-23 1991-11-28 Rentschler Reven-Lüftungssysteme GmbH Separateur pour liquides provenant d'un flux de gaz, en particulier pour brumes d'huile
WO1997005941A1 (fr) * 1995-08-04 1997-02-20 Cedis Licensing Gmbh Dispositif permettant d'extraire des particules de fumees, de graisses et/ou de poussieres contenues dans un flux d'air
CN1416936A (zh) * 2002-12-05 2003-05-14 成都炉莱特尔净化技术实业有限公司 油烟过滤板
CN1693762A (zh) * 2005-04-11 2005-11-09 马利华 油烟净化罩及其油烟净化器
CN2832272Y (zh) * 2005-05-25 2006-11-01 周达 过滤装置

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107965811A (zh) * 2017-04-26 2018-04-27 宁波方太厨具有限公司 一种用于吸油烟机的多级过滤装置
CN107965811B (zh) * 2017-04-26 2023-11-17 宁波方太厨具有限公司 一种用于吸油烟机的多级过滤装置
CN108072070A (zh) * 2017-07-28 2018-05-25 宁波方太厨具有限公司 油烟过滤组件及应用有该油烟过滤组件的吸油烟机
CN108072070B (zh) * 2017-07-28 2024-01-16 宁波方太厨具有限公司 油烟过滤组件及应用有该油烟过滤组件的吸油烟机
CN109405002A (zh) * 2017-08-16 2019-03-01 宁波方太厨具有限公司 一种吸油烟机及其控制方法
CN109405002B (zh) * 2017-08-16 2024-01-16 宁波方太厨具有限公司 一种吸油烟机及其控制方法
CN108443924B (zh) * 2018-03-07 2024-01-09 佛山市云米电器科技有限公司 一种带非平面过滤装置的油烟机
CN108443924A (zh) * 2018-03-07 2018-08-24 佛山市云米电器科技有限公司 一种带非平面过滤装置的油烟机
CN109011982A (zh) * 2018-08-24 2018-12-18 城林环保技术（上海）有限公司 一种具有降噪功能的含月牙形管栅结构的拦油装置
CN109011982B (zh) * 2018-08-24 2024-02-09 城林科技(上海)有限公司 一种具有降噪功能的含月牙形管栅结构的拦油装置
CN109028246A (zh) * 2018-10-18 2018-12-18 杭州老板电器股份有限公司 油网及油烟机
CN109990360A (zh) * 2019-04-19 2019-07-09 杭州德意电器股份有限公司 一种油烟机的仿生油烟净化滤网
CN110385000A (zh) * 2019-07-30 2019-10-29 杭州德意电器股份有限公司 一种双层分布结构的油烟机内置滤网及过滤方法
CN110486764A (zh) * 2019-08-12 2019-11-22 宁波方太厨具有限公司 一种吸油烟机
CN113932268A (zh) * 2021-11-10 2022-01-14 朱伟军 一种油烟分离网结构及吸油烟机

Also Published As

Publication number Publication date
CN101033865A (zh) 2007-09-12
MY144267A (en) 2011-08-29
CN101033865B (zh) 2012-07-18

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