CN201003807Y

CN201003807Y - Double vortex gas filter

Info

Publication number: CN201003807Y
Application number: CNU200720048578XU
Authority: CN
Inventors: 李长江
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-02-06
Filing date: 2007-02-06
Publication date: 2008-01-09
Anticipated expiration: 2017-02-06

Abstract

The utility model is applied in the kitchen cooker hood technical field, in particular to a vortex pair gas filter applied in the cooker hoods, comprising a fixing frame, and a front air deflector and a back air deflector which are arranged on the fixing frame with a vicarious array, which is characterized in that the two sides of the back air deflector are provided with onward bending parts, the front air deflector is provided with grooves which are corresponding to the bending parts arranged on the two sides of the back air deflector, the bending parts of the back air deflector are embedded in the middle of the grooves and have a certain gap with the bottoms of the grooves, two sections of air current ducts having air inlets and air outlets are arranged between the front air deflector and the back air deflector. The bending part is an inclined plane, the groove corresponding to the bending part is a tabella type groove, or the bending part is an arc surface, the groove corresponding to the bending part is an arc groove. The vortex pair gas filter adopting the structure above has the advantages of lamp black separating, good filtrating effect and low noise.

Description

The vortex pair pneumatic filter

Technical field

The utility model is used for the fume exhauster for kitchen technical field, is specifically related to a kind of vortex pair pneumatic filter that is used for range hood.

Background technology

The use of range hood efficiently solves the puzzlement that people endure oil smoke harm to the fullest extent.The oil smoke that present range hood generally adopts netted oil fume separator that the kitchen is produced separates and filters, and the range hood separating effect of this structure is relatively poor, and noise is big, and the oil smoke that discharges is seriously polluted to outdoor environment.Now, the dealer has designed a kind of pneumatic filter, the utility model patent that is called " vortex type gas filter " as the once disclosed name of Chinese patent, the patent No. is: 200420050894.7, the structure of the pneumatic filter that this technical scheme discloses mainly is installed in fixed frame by front and back spirality roll bending cross arrangement, formation has the spiral vortex type passage of air inlet and gas outlet, adopt the range hood of this vortex type gas filter, effectively improved the oil smoke separating effect and reduced noise to have, but in actual use, too short and can only form eddy current one time because of the spiral vortex type passage, oil smoke separates and the reduction of noise is still waiting further raising.

Summary of the invention

The purpose of this utility model is to provide a kind of oil smoke separation, good filtration effect, the pneumatic filter that is used for the vortex pair on the range hood that noise is low.

The purpose of this utility model is achieved in that a kind of pneumatic filter of vortex pair, comprise that fixed frame and dislocation arrangement are installed on the preceding wind deflector and the back wind deflector of fixed frame, it is characterized in that: wind deflector both sides, described back have bending part forward, before offer on the wind deflector and wind deflector both sides bending part groove opposite thereafter, the bending part of this back wind deflector embeds in the middle of its groove and holds limit and bottom portion of groove to have certain interval, forms two sections gas channels that can produce eddy current with air inlet and gas outlet between preceding wind deflector and the back wind deflector.

Described bending part is the inclined-plane, with its groove opposite be the ramp type groove.

Described bending part is a cambered surface, with its groove opposite be arc groove.

Good effect of the present utility model: wind deflector both sides, back have bending part forward, before offer on the wind deflector and wind deflector both sides bending part groove opposite thereafter, the bending part of this back wind deflector embeds in the middle of its groove and holds limit and bottom portion of groove to have certain interval, like this, between preceding wind deflector and back wind deflector, two sections gas channels that can produce eddy current have been formed naturally with air inlet and gas outlet, in the work, oil smoke will produce the opposite air-flow of eddy flow direction twice at the gas channel of vortex pair pneumatic filter, effectively improved the liquid or solid-state short grained centrifugal separating effect in the oil smoke, and filtration channel prolongs, liquid or solid-state short grained bump contact area is bigger, separating effect is better, be a circuitous channel because of gas channel simultaneously, noise is also effectively reduced.

Description of drawings

Fig. 1 is the utility model vortex pair pneumatic filter front view;

Fig. 2 is that Figure 1A-A of embodiment one is to cross section zoomed-in view (one);

Fig. 3 is that Figure 1A-A of embodiment one is to cross section zoomed-in view (two);

Fig. 4 is that Figure 1A-A of embodiment two is to the cross section zoomed-in view.

The specific embodiment

Below in conjunction with accompanying drawing the utility model specific embodiment is elaborated.

Embodiment one: as Fig. 1, shown in Figure 2: vortex pair pneumatic filter described in the utility model, mainly arranging the preceding wind deflector 2 and the back wind deflector 3 that are installed on fixed frame 1 by fixed frame 1 and dislocation forms, with wind deflector 3 both sides, back forward the bending certain angle form the bending part 30 of inclination, before offer on the wind deflector 2 and wind deflector 3 both sides bending parts 30 groove opposite 20 thereafter, during installation, the bending part 30 of back wind deflector 3 embeds in the middle of its groove 20 and end limit 300 has certain interval with groove 20 bottoms 200, has formed two sections gas channels 4 that can produce eddy current with air inlet 5 and gas outlet 6 naturally between preceding like this wind deflector 2 and the back wind deflector 3.In order to economize material, groove 20 sidewalls of usually preceding wind deflector 2 adopt the swash plate U-shaped piece (see figure 3) of wind deflector 3 direction projectioies backward.This ramp type vortex pair pneumatic filter is installed on the front panel of range hood, during work, the exhaust blower at range hood rear portion starts, form a negative pressuren zone in that range hood is inner, discharge again in the range hood outdoor (dotted arrow is represented oil smoke airflow route among the figure) thereby the gas channel 4 of the oil smoke in the kitchen by ramp type vortex pair pneumatic filter enters.When the oil smoke air-flow passes through the air intake 5 of ramp type vortex pair pneumatic filter; at first clash into the bottom surface of back wind deflector 3; liquid or solid-state granule in the oil smoke flows in the oil storage box of range hood bottom along back wind deflector 3 inwalls; oil smoke can enter in the gas channel 4 and form eddy flow then; wind deflector carried out the water-oil separating filtration before and after remaining liquid in the oil smoke or solid-state granule can constantly clash under centrifugal action; when the oil smoke air-flow arrives at 200 places, bottom of groove 20; strong and meet obstructions because of air-flow; can clash 200 places, bottom of its groove 20 of remaining liquid in the oil smoke or solid-state granule; carry out separating and filtering once more; simultaneously; reverse change also takes place in air-flow eddy flow direction; inwall at gas channel 4 separates at last; usually gas outlet 6 discharges are outdoor then, and oil smoke is through a series of separating and filtering process like this, and the gas that discharges can reach environmental requirement; and in this circuitous gas channel 4, eliminated noise substantially.

Example two: its main this structure is identical with embodiment, and difference is that the bending part 30 of back wind deflector 3 is a cambered surface, with its groove opposite 20 be arc groove.

Claims

1, a kind of pneumatic filter of vortex pair, comprise that fixed frame (1) and dislocation arrangement are installed on the preceding wind deflector (2) and the back wind deflector (3) of fixed frame (1), it is characterized in that: wind deflector (3) both sides, described back have bending part (30) forward, before offer on the wind deflector (2) and wind deflector (3) both sides bending parts (30) groove opposite (20) thereafter, the bending part (30) of this back wind deflector (3) embeds in the middle of its groove (20) and end limit (300) has certain interval with groove (20) bottom (200), forms the gas channel (4) with air inlet (5) and gas outlet (6) between preceding wind deflector (2) and the back wind deflector (3).

2, the pneumatic filter of vortex pair according to claim 1 is characterized in that: described bending part (30) is the inclined-plane, with its groove opposite (20) be the ramp type groove.

3, the pneumatic filter of vortex pair according to claim 1 is characterized in that: described bending part (30) is a cambered surface, with its groove opposite (20) be arc groove.