CN2903748Y

CN2903748Y - Air filtering purifying and return pressure inhibiting apparatus

Info

Publication number: CN2903748Y
Application number: CN 200620012421
Authority: CN
Inventors: 廖进端
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-17
Filing date: 2006-04-17
Publication date: 2007-05-23
Anticipated expiration: 2016-04-17

Abstract

An air filter return-pressure suppression device which is mainly characterized in that in an air (or smoke) discharging pipe and at an air inlet of the front portion of a ventilating fan, the air filter return-pressure suppression device is provided with a negative pressure generating device which causes a baffle with a plurality of through-holes isolated from the air inlet of the front portion of the ventilating fan, leading to a negative pressure region which is between the baffle and the ventilating fan, avoiding generating sinuous flow in the air (smoke) discharging tunnel which is not fit for smoke attraction, and facilitating the smoke discharging to a back portion of the ventilating fan. Thereby the smoke can smoothly flow into the filter to be purified and then be discharged, at the same time the smoke is ensured to flow towards the air draught port and the smoke discharging pipe.

Description

Clean and the supression back pressure device of air filter

Technical field

The utility model provides a kind of air filter, refers to a kind of clean and supression back pressure device of air filter that is beneficial to the smog dispatch especially.

Technical field

In fume extractor, generally be in exhaust (cigarette) pipeline (path), to be provided with to be subjected to power-actuated ventilating fan, the air that its rotation by ventilating fan is ordered about in the path flows, and makes the smog that is arranged in the place, inlet scoop suck path and be guided discharging; Define for convenience of explanation, can be distinguished according to the be provided with position of ventilating fan in path, the section in ventilating fan leading portion direct air inlet passage can be described as wind inlet section, and can be described as wind outlet section at the air-out path of ventilating fan back segment; In a possible design, the length of wind outlet section is than the air intake segment length, and wind outlet section can have crooked paragraph or the smog that the filter material filtering emission is set is arranged because of setting up environmental factor; And in the design of above-mentioned smoke evacuation path, because wind outlet section has crooked setting up, its crooked aspect can operate at ventilating fan, when the air in the smoke evacuation path send, the circulation that influences because of crooked place produces a malleation value in the wind outlet section place, so, the wind pressure value of wind outlet section and wind inlet section obviously is formed with difference, so performance that the malleation value that wind outlet section produces will produce a back pressure phenomenon at the wind inlet section place, so the generation of back pressure will be the phenomenon that a sinuous flow is arranged at the place, inlet scoop of wind inlet section, influence smoke discharging effect so greatly.

And at the wind outlet section place when filter material is set with the smog of filtering emission, it also can produce a malleation value and influence the suction of smog in the wind outlet section place; This case creator is in the creation of first to file TaiWan, China No. 094218167 " purifier and filter material thereof ", this purifier comprises a cylindrical shell and is filled in the interior several filter materials of this cylindrical shell, it can be installed between discharge duct in order to filter oil smoke, and this filter material comprises at least one hollow housing, the perisporium of this hollow housing is provided with the sequence perforation, and several tube bodies further are set in hollow housing in order to the roomy surface that can provide oil content to adhere to be provided, to reach the oil smoke that to cross the cooker hood discharging.

Though the purifier that No. 094218167 case of this application discloses can be reached the result of use of expection, but, this purifier is installed in fan and sucks the windward side of sending behind the air-flow, it can form malleation and the discharge of overslaugh oil smoke, that is this purifier can make the smoke evacuation pipeline form slight positive pressure state, and consequently cooking the oil smoke (ascending air) that produces can not be mobile with the pipeline of discharging fume toward the wind stomach of smoke exhaust swimmingly, and may have the problem generation that oil smoke disperses, and have influence on the discharging of oil smoke.

In view of this utility model creator satisfies and concentrates one's attention on to be researched and analysed and design, and through actual test and after repeatedly improving, generation of the present utility model is arranged up to the present.

Summary of the invention

The utility model main purpose is providing clean the reaching of a kind of air filter to restrain back pressure device, and this device can guarantee that oil smoke can flow and discharging smoothly toward the inlet scoop and the pipeline of discharging fume.

According to the clean and supression back pressure device of the formed air filter of the utility model, it is characterized in that, comprising:

One discharge duct;

One is arranged in the ventilating fan of discharge duct, and discharge duct comprises that further being arranged in the ventilating fan leading portion is used to constitute the wind inlet section that direct air sucks path, and is positioned at the wind outlet section that the ventilating fan back segment constitutes the air-out path; And

One is positioned at the negative pressure shape apparatus for converting that is used for forming at wind inlet section a negative pressure of wind inlet section.

Wherein, the negative pressure shape apparatus for converting is one to have the dividing plate of through hole, and it intercepts at the wind inlet section place.

Wherein, dividing plate further comprises and has through hole respectively, and extends to several bodys of dividing plate inboard.

Wherein, dividing plate is the cambered surface protrusion bodily form.

A kind of air filter is clean and restrain back pressure device, it is characterized in that, comprises:

One smoke exhaust;

One filter is positioned on the smoke evacuation pipeline of smoke exhaust, and it comprises several filter materials, and each filter material comprises one or more hollow housing, and is distributed with the sequence perforation at this hollow housing perisporium; And

One negative pressure shape apparatus for converting, be positioned at the cover body open lower side of smoke exhaust, it comprises one or more dividing plate in order to formation one negative pressuren zone between the oil smoke guiding space of inlet scoop and cover body bottom, and is distributed with several on this dividing plate in order to the through hole as gas channel.

Wherein, this dividing plate is installed on the base plate of smoke exhaust and is positioned at the below, inlet scoop.

Wherein, this dividing plate is positioned at the base plate bottom between the smoke exhaust biside plate, and covers the lower openings place of cover body.

Wherein, dividing plate is the cambered surface protrusion bodily form.

Wherein, this body is to have to the inboard through hole that extends passage of dividing plate.

Wherein, this body is one to have the tube of endoporus.

Wherein, the number filter material is filled in an inner barrel, and this cylindrical shell is positioned on the smoke evacuation pipeline, and it has oil smoke import and oil smoke outlet.

Wherein, this filter material further comprises the several bodys that extend in the housing.

Wherein, this filter material is spherical hollow housing.

The utility model beneficial effect:

According to said structure, the utility model makes that oil smoke can be successfully mobile toward the wind stomach of smoke exhaust, and inflow filter outwards discharging to purify swimmingly, simultaneously, and can guarantee that oil smoke can flow more smooth toward inlet scoop and smoke evacuation pipeline.

About other purposes of the present utility model, advantage and feature, can graphicly understand by the detailed description of following preferred embodiment and with reference to appended.

Description of drawings

Fig. 1: be the embodiment schematic diagram that a fume extractor of the present utility model is installed;

Fig. 2: be the embodiment schematic diagram that a smoke exhaust of the present utility model is installed;

Fig. 3: the cut-away view that is filter material one embodiment of Fig. 2 filter;

Fig. 4: the cut-away view that is dividing plate one embodiment of Fig. 2 negative pressure shape apparatus for converting;

Fig. 5: be the enforcement schematic diagram of the second figure smoke exhaust at the discharging oil smoke;

Fig. 6: be the schematic diagram that the utility model negative pressure shape apparatus for converting is installed in another embodiment on the smoke exhaust; And

Fig. 7: be that the dividing plate that shows the utility model negative pressure shape apparatus for converting forms circular-arc schematic diagram.

The specific embodiment

The utility model can be implemented with multiple different form.Now will only be example but non-in order to the embodiment of restriction and with reference to appended graphic as follows with regard to the utility model preferred construction description of contents:

See also Fig. 1, show the utility model one embodiment sketch, be in an exhaust (cigarette) pipe path 7, to be provided with to be subjected to power-actuated ventilating fan 71 to form a fume extractor, and the position being set distinguishing the section that sucks in the path in ventilating fan 71 leading portion direct air and be called wind inlet section 72 according to ventilating fan 71, it has comprised inlet scoop 721, and can be described as wind outlet section 73 at the air-out path of ventilating fan back segment; The utility model mainly is to be provided with a negative pressure shape apparatus for converting 8 at wind inlet section 72 places of ventilating fan 71 leading portions of discharge duct 7, this negative pressure shape apparatus for converting 8 is for to make a dividing plate 81 with several through holes 811 be isolated from wind inlet section 72 places of ventilating fan 71 leading portions, make and form negative pressure generation district 74 between dividing plate 81 and the ventilating fan 71, so make the wind inlet section 72 and the force value of wind outlet section 73 be bordering on average, thereby lower the performance of back pressure phenomenon; Further extended body 812 for making through hole 811 produce 74 places, district to negative pressure, the flow direction that so can limit to smog, smog is easy in the negative suction generation district 74, and is difficult for diffusing out the inlet scoop 721 of wind inlet section 72, so have the smoke evacuation benefit that promotes fume extractor.

When utilization is that the wind outlet section place is provided with the smoke exhaust of filter for the utility model, see also Fig. 2, demonstration is combined with a filter according to the utility model and implements to be installed on the smoke exhaust, this smoke exhaust 3 has a cover body, on located by prior art, on the whole this cover body is gone up by top board 31, backboard 32 and biside plate (not shown) surround the housing that opening is formed at a bottom, and between two side plates, possess a base plate 34 that is the indent kenel (or claiming header board), make the lower openings of this cover body form a guiding space 35 in order to collect the ascending air (oil smoke and steam) that culinary art produces.

Form a wind stomach 36 in the inside of cover body, installing can be subjected at least one fan 37 that motor 38 drives in this wind stomach 36, and an inlet scoop 361 and an exhaust outlet 362 are set respectively on the bottom and the top of this wind stomach 36, this exhaust outlet 362 connects smoke evacuation pipeline 39 and is communicated to the external world, after fan 37 starts, the ascending air (oil smoke and steam) that culinary art produces will be from the inlet scoop 361 be inhaled into wind stomach 36, is expelled to outside the room via smoke evacuation pipeline 39 again; Again in the present embodiment, be formed with on the base plate 34 and stretch into a wind stomach 36 and a protuberance 341 at fan 37 downsides, the top of this protuberance 341 is provided with the hole that constitutes inlet scoop 361.

Cooperate Fig. 2, Fig. 5, implement the interior negative pressure shape apparatus for converting 2 of cover body bottom (wind inlet section) opening that institute's constitutor comprises the filter 1 on the wind outlet section (smoke evacuation pipeline) 39 that can be assembled in smoke exhaust 3 and can be arranged on smoke exhaust 3 according to the utility model; This filter 1 (applying for that as described above No. 094218167 case discloses) comprises the cylindrical shell 11 that without exception becomes tubulose and is filled in the specially designed filter material 12 of these cylindrical shell 11 inner numbers; This cylindrical shell 11 has oil smoke import 111 and oil smoke outlet 112, and can be assembled in appropriate location on the smoke evacuation pipeline 39.

Cooperate shown in Figure 3, each filter material 12 that forms according to the utility model comprises at least one hollow housing 121 and stretches into several bodys 122 of suitable length in this housing, this hollow housing can be spherical, side's shape or polyhedral housing, in the present embodiment, the spherical shell that this hollow housing 121 is made by plastic material, and be distributed with sequence perforation 123 at this hollow housing perisporium, and body 122 is one to possess the pipe fitting of endoporus 124, one end of each body 122 forms lip portions 125, the outer wall dimension of this lip portions 125 makes this body 122 can see through in the through hole 123 insertion hollow housings and combines closely greater than the aperture of through hole 123; In an interchangeable embodiment, this body 122 extends passage by through hole 123 to the enclosure interior one and forms (not shown).

Cooperate Fig. 2, shown in Figure 5, negative pressure shape apparatus for converting 2 of the present utility model comprises at least one dividing plate 21 that can be installed on the cover body base plate 34 in order to 361 lower side space forms a negative pressuren zone in the inlet scoop, in the present embodiment, this dividing plate 21 cover protuberance 341 under, make to form negative pressuren zones 4 in the protuberance 341 of this base plate 34, that is, after fan 37 starts, this negative pressuren zone 4 and wind stomach 36 form relatively low atmospheric pressure value in comparison; In an interchangeable embodiment, as shown in Figure 6, this dividing plate 21 can have bigger area, and be installed in base plate 34 bottoms (promptly covering the lower openings place of cover body 31) between the biside plate, make the whole oil smoke guiding space 35 of inlet scoop 361 downsides can form a relatively low negative pressuren zone 4 of following atmospheric pressure value of comparing with wind stomach 36.

Be distributed with several through holes 211 on this dividing plate 21 in order to as gas channel, in the present embodiment, and having several bodys 22 to extend into dividing plate 21 inboards (upside among Fig. 4) via individual other through hole 211, these bodys 22 are formed by the passage that through hole 211 extends a segment length integratedly to dividing plate 21 1 sides; In an interchangeable embodiment, each body 22 is as the body 122 of Fig. 3, is one to possess the pipe fitting of endoporus, inserts combination on the dividing plates 21 and can see through through hole 211.

See also Fig. 5, show the performance of these smoke exhaust 3 discharging oil smoke.After motor 38 drives fans 37 and rotates, the guiding space 35, bottom that oil smoke 5 that culinary art is given birth to or gas (ascending air) will be pooled to cover body, and 361 be inhaled into wind stomach 36 from the inlet scoop, be expelled to outside the room via smoke evacuation pipeline 39 again.And as previously mentioned, after oil smoke 5 enters in the smoke evacuation pipeline 39, will import in the filter of the present utility model 1 and by filter material 12 filtration, purifications, i.e. outer wall by vast inner wall surface area of hollow housing 121 self and body 122, can provide grease, oil content or soot impurity in the oil smoke to adhere to and collect and filter, thereby the oil smoke that is discharged into mole drain 6 from the outlet 391 of smoke evacuation pipeline 39 just can be purified effect.

Moreover, 361 downside forms a negative pressuren zone 4 because negative pressure shape apparatus for converting 2 is in the inlet scoop, so, can guarantee to cook the ascending air of being given birth to can flow toward the direction of wind stomach 36 and smoke evacuation pipeline 39, that is, the oil smoke 5 or the ascending air that are pooled in the guiding space, cover body bottom 35 will flow toward negative pressuren zone 4, and can not rest on form in the guiding space 35 eddy current or even cause backflow phenomenon, and then make oil smoke 5 can be swimmingly 361 be inhaled into wind stomach 36 from the inlet scoop, flow into again in the smoke evacuation pipeline 39 and be filtered device 1 filtration, purification, then be expelled to outside the room.

Again, as shown in Figure 7, the dividing plate 21 ' of negative pressure shape apparatus for converting 2 can be a cambered surface and protrude the bodily form, uses the quantity that is provided with that increases its through hole 211 ', and can increase the benefit that sucks.

Above stated specification only is to describe at preferred embodiment of the present utility model, and comply with design spirit of the present utility model is can do multiple variation or revise embodiment, for example, dividing plate 21 of the present utility model can change slightly along with multi-form smoke exhaust, and be installed in appropriate location between the smoke exhaust biside plate, make the oil smoke of inlet scoop and cover body bottom guide formation one negative pressuren zone between the space, in addition, dividing plate 21 is not defined as dull and stereotyped kenel yet.Therefore, for being familiar with obvious replacement and the modification that this skill personage can do, will be incorporated within the claim that the utility model advocates.

Claims

1, the clean and supression back pressure device of a kind of air filter is characterized in that, comprising:

One discharge duct;

2, air as claimed in claim 1 filter is clean and restrain back pressure device, it is characterized in that: the negative pressure shape apparatus for converting is one to have the dividing plate of through hole, and it intercepts at the wind inlet section place.

3, air as claimed in claim 2 filter is clean and restrain back pressure device, it is characterized in that: dividing plate further comprises and has through hole respectively, and extends to several bodys of dividing plate inboard.

4, as claim 2 or the clean and supression back pressure device of 3 described air filters, it is characterized in that: dividing plate is a cambered surface and protrudes the bodily form.

5, the clean and supression back pressure device of a kind of air filter is characterized in that, comprises:

One smoke exhaust;

6, air as claimed in claim 5 filter is clean and restrain back pressure device, it is characterized in that: dividing plate further comprises and has through hole respectively, and extends to several bodys of dividing plate inboard.

7, clean and restrain back pressure device as claim 5 or the filter of 6 described air, it is characterized in that: this dividing plate is installed on the base plate of smoke exhaust and is positioned at the below, inlet scoop.

8, as claim 5 or the clean and supression back pressure device of 6 described air filters, it is characterized in that: this dividing plate is positioned at the base plate bottom between the smoke exhaust biside plate, and covers the lower openings place of cover body.

9, as claim 5 or the clean and supression back pressure device of 6 described air filters, it is characterized in that: dividing plate is a cambered surface and protrudes the bodily form.

10, the clean and supression back pressure device of air filter as claimed in claim 6 is characterized in that: this body is to have to the inboard through hole that extends passage of dividing plate.

11, air as claimed in claim 6 filter is clean and restrain back pressure device, it is characterized in that: this body is one to have the tube of endoporus.

12, the clean and supression back pressure device of air filter as claimed in claim 5, it is characterized in that: the number filter material is filled in an inner barrel, and this cylindrical shell is positioned on the smoke evacuation pipeline, and it has oil smoke import and oil smoke outlet.

13, the clean and supression back pressure device of air filter as claimed in claim 5, it is characterized in that: this filter material further comprises the several bodys that extend in the housing.

14, the clean and supression back pressure device of air filter as claimed in claim 5, it is characterized in that: this filter material is spherical hollow housing.