CN203364204U

CN203364204U - Swirling-flow type range hood

Info

Publication number: CN203364204U
Application number: CN 201320263071
Authority: CN
Inventors: 李雪斌; 陈肖龙; 伍广; 周毅钧; 李坤; 朱海涛
Original assignee: Anhui University of Science and Technology
Current assignee: Anhui University of Science and Technology
Priority date: 2013-05-15
Filing date: 2013-05-15
Publication date: 2013-12-25
Anticipated expiration: 2023-05-15

Abstract

The utility model provides a swirling-flow type range hood which is used for pumping and discharging cooking fume by strong pumping and suction force generated by a low-pressure core formed through utilizing a rotational air flow. The swirling-flow type range hood is characterized in that the cooking fume is sucked into a swirling-flow separator (4) from a suction inlet by a fan (1) and rotates in a swirler at a high speed; under the action of centrifugal force generated during rotation, oil drops with large density in the cooking fume are subjected to centrifugal sedimentation, dispersed to the periphery and thrown to the wall surface, and swirl downwards, the oil drops on the wall surface can be mutually adhered to form large oil drops after contacted, and finally, the oil drops downwards flow into an oil collecting cup (5) at the bottom under the action of the gravity; and gas with small density is subjected to smaller centrifugal force, can move to the middle part, rotationally upwards flows along an axis and is discharged through an exhaust pipe finally. The cooking fume cannot flow through fan propellers, so that numerous defects of a conventional range hood are overcome thoroughly; and the swirling-flow type range hood has the advantages of high oil fume suction rate, stable fan performance, low noise, convenience in cleaning and the like, and accordingly, the swirling-flow type range hood can not only be used for pumping and discharging the cooking fume in a kitchen, but also can be used for absorbing other different gases, and is wide in application range.

Description

A kind of spiral-flow type range hood

Technical field

The utility model relates to a kind of smoke exhaust ventilator, especially vortex type fume exhaust fan

Background technology

At present, for the lampblack absorber of residential kitchen, be mainly to rotate oil smoke is drawn in flue by draught fan impeller now, produce simple inertial separation, by filtering, oil smoke is played to certain catharsis.But a lot of smoke exhaust ventilators exist oil smoke easily to overflow, purification efficiency is low, oil droplet easily precipitates and accumulates at blade surface, and leaf cleaning is difficult, filter medium is easily blocked, and the cover net needs the problems such as frequent clean.

The utility model content

Indifferent in order to overcome existing smoke exhaust ventilator pump drainage, fume purifying efficiency is not high, oil droplet easily precipitation accumulates at blade surface, clean difficulty, the deficiency that noise is large, the utility model provides a kind of swirling eddy that utilizes to form the low pressure core, thereby produces a kind of smoke exhaust ventilator of powerful suction capactity pump drainage oil smoke.

The utility model solves the technical scheme that its technical problem adopts: the workpiece of this spiral-flow type range hood is comprised of blower fan (1), three-way pipe (2), flexible pipe (3), cyclone (4), catchment cup (5).The blower fan here can use MS-405 cooling type blower fan, the about 0.4KW of this power of fan.Blower fan is fixed on frame, is positioned at the top of range hood integral body, the suction inlet connecting tee pipe (2) of blower fan; Two imports of three-way pipe are laterally placed, left be connected respectively two flexible pipes (3) to the right; Two flexible pipes become vertical configuration to connect the exhaust duct of two cyclones (4) downwards by transverse curvature; Two catchment cups (5) are threaded respectively below cyclone; The air inlet of cyclone (being suction inlet), extend two horn-like air intake covers of tetrahedron (6).

The characteristics of this range hood maximum are to have used two cyclones (claiming again cyclone separator), and oil smoke produces high-speed rotational after sucking cyclone in the cyclone cylinder, makes oil smoke discharge more thorough, and purification efficiency is high.Vortex type fume exhaust fan has been abandoned utilized the blower fan mode of pump drainage of directly drying fully, but utilizes swirling eddy pump drainage oil smoke.The advance of this technology is: the low pressure core that this swirling eddy forms, much more eager to excel in whatever one does than the ability of the direct blowing pump drainage of blower fan oil smoke of its suction capactity, therefore the purifying rate of oil smoke is high.The direct pump drainage oil smoke of while blower fan, its effect is only that the air containing oil smoke is blown into to cyclone separator, produces swirling eddy.Blower fan is not interposing in flue the oil smoke draught fan impeller of not flowing through, the stable performance of blower fan, and noise is low, is easy to clean, and energy saving, thoroughly eradicated the many drawbacks of existing smoke exhaust ventilator, extended working life.

The accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 is the cut-away view of this range hood.

Fig. 2 is the left view of this range hood.

Fig. 3 is the profile (top view) of this range hood in the suction inlet position

The specific embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.

During this spiral-flow type range hood work, power-on, make blower fan (1) rotate, make in pipeline (2), (3) and cyclone (4) to produce negative pressure, be drawn in cyclone by oil smoke by air intake cover (6) and High Rotation Speed generation centrifugal force field in cyclone (4).Under the centrifugal action produced in strong rotation, the oil droplet generation centrifugal sedimentation that in oil smoke, density is large, divide to surrounding, gets rid of to wall turn downwards, the large drop of the inter-adhesive formation of meeting after the oil droplet contact of wall, finally at the dirty catchment cup (5) to bottom of the effect of gravity; The centrifugal force that the gas that density is little is subject to is less, can be to centre migration, and along axis, rotate up mobilely, finally by blast pipe, discharge.Utilize the gas-liquid two-phase isolation technics, so just completed the separation of the oil smoke with density contrast.Due to the effect of centrifugal force and the viscosity of oil droplet, make oil droplet be easy to stick on barrel, the purifying oil fume better effects if.Oil smoke after purifying flows out by blower fan and sucks by blast pipe, and the oil smoke do not purified fully, through blower fan, further blows row by blower fan, and the flue gas after purification is by outside the direct discharge chamber of exhaust outlet.

Above demonstration and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. a spiral-flow type range hood, be comprised of blower fan, three-way pipe, flexible pipe, cyclone, catchment cup, it is characterized in that:

Described blower fan is arranged on the top of lampblack absorber;

An outlet of described three-way pipe is connected to the suction inlet of blower fan, and two imports of three-way pipe are laterally placed;

Described flexible pipe has two, with two of the left and right import of three-way pipe, is connected respectively, and then 90-degree bent is downward respectively;

Described cyclone has two, is positioned at below two flexible pipes, and the exhaust outlet of cyclone connects respectively two flexible pipes; The air inlet of cyclone, extend two horn-like air intake covers of tetrahedron;

Described catchment cup is positioned at the cyclone below, with cyclone bottom oil drain out, is connected.