CN1397372A

CN1397372A - Multi-tube cyclone type oil filter

Info

Publication number: CN1397372A
Application number: CN 01120562
Authority: CN
Inventors: 汤健中
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-07-23
Filing date: 2001-07-23
Publication date: 2003-02-19

Abstract

A cyclone-type multi-tube oil filter features that multiple cyclone tubes with internal spiral channel are used instead of a single big pipe for higher centrifugal force to obtain higher oil separating effect, and each said tube has a cap at its fume outlet for preventing the oil drops from being escaped with the fume.

Description

Multi-tube cyclone type oil filter

(1) technical field: the present invention relates to the kitchen smoke exhaust ventilator.

(2) technical background: the inventor once disclosed the pipeline rotational flow formula oil filter of using on a kind of smoke exhaust ventilator on China Patent No. is 92102246.8 patent, but result of the test, the oil strain DeGrain, reason is that (1) single tube cyclone type oil filter diameter is big, centrifugal force is little, gets rid of oily weak effect; (2) oil droplet racks away in the cyclone pipe exit, is not got off by the cross section, and it is difficult also to exist the cyclone pipe helical duct to make in addition, and problem yields poorly.

(3) summary of the invention: technical problem underlying to be solved by this invention is further to improve the oil strain effect.

Second technical problem to be solved by this invention is to improve product yield, reduces production costs.

Technical problem underlying to be solved by this invention is achieved in that the rotating oil filter of a kind of multitube of smoke exhaust ventilator, comprise cyclone pipe and housing, the cyclone pipe of band helical duct is placed in the housing in the pipe, housing is contained in the exhaust gases passes of smoke exhaust ventilator, it is characterized in that: under the condition that the total area of section of gas approach equates, adopt the interior single large diameter cyclone pipe of being with the cyclone pipe 404 replacement prior aries of helical duct 403 of pipe of multitube minor diameter, to improve the angular velocity of rotation of air-flow greatly, reach strengthen air-flow centrifugal and get rid of oily effect, the caliber scope of described minor diameter is the 2-8 centimetre, the helixangle scope of pipe inside spin passage 403 is the 8-45 degree, oil smoke flow velocity on the pipe cross section is controlled at 8-12 mark meter per second, and the oil smoke circulation is calculated by total exhaust air rate of used blower fan.

In order further to improve the oil strain effect, also can have a leakproof oil cap of holding back oil droplet at the port of export of each cyclone pipe flue gas.

Second technical problem to be solved by this invention is achieved in that

Employing for example can be adopted polysulfone plastic with the multi-tube cyclone type oil filter of heat resistant plastice injection mo(u)lding, and it can be-100～+ 150 ℃ of following long-term works, or the PBT plastics, are no more than 90 ℃ and the oil smoke temperature in the smoke exhaust ventilator is the highest.

The present invention compares the advantage that is had with background technology:

1) replaces single tube major diameter cyclone pipe with multitube minor diameter cyclone pipe, under the single tube major diameter condition identical with the gas approach area of multitube minor diameter, promptly under the identical condition of gas approach linear velocity, pipe diameter is littler, the angular velocity of rotation of flue gas in cyclone pipe is bigger, centrifugal force is bigger, thereby gets rid of oily effect better;

2) have leakproof oil cap at the swirl type tube smoke outlet, prevented that oil droplet from blowing out with flue gas at the cyclone pipe port of export, further improved the oil strain effect;

3) to mould Dai Gang, it is low to have a cost, the advantage that productivity ratio is high.

(4) description of drawings: Fig. 1, Fig. 2, Fig. 3 are most preferred embodiments of the present invention, and Fig. 1 is the cutaway view of Fig. 2 A-A, and Fig. 3 is the B enlarged drawing of Fig. 1.

(5) specific embodiment: be with the cyclone pipe 404 of helical duct 403 to form in multi-tube cyclone type oil filter 400 its pipe by housing 405 and many row's minor diameters, cyclone pipe 404 is to hang on last support plate 402 by the oily cap 401 of shelves that is connected with the cyclone pipe screw top, last support plate 402 usefulness screws 406 are fixed among the housing 405, on the end of every cyclone pipe 404 oil smoke outlet, have a leakproof oil cap 401 of holding back oil droplet, leakproof oil cap 401 plays a part to hang cyclone pipe simultaneously on support plate 402, and make flare at the oil smoke entrance point of every cyclone pipe, 407 are support plate down.

Claims

1. the multi-tube cyclone type oil filter of a smoke exhaust ventilator comprises cyclone pipe and housing, and the cyclone pipe of band helical duct is placed in the housing in the pipe, and housing is contained in the exhaust gases passes of smoke exhaust ventilator, it is characterized in that:

Under the condition that the total area of section of oil smoke import equates, adopt the large diameter cyclone pipe of single tube of cyclone pipe (404) the replacement prior art of band helical duct (403) in the multitube narrow tube, the caliber scope of minor diameter cyclone pipe (404) is at the 2-8 centimetre.

2. multi-tube cyclone type oil filter as claimed in claim 1 is characterized in that: the helixangle scope of described pipe inside spin passage (403) is at the 8-45 degree.

3. multi-tube cyclone type oil filter as claimed in claim 1 is characterized in that: the oil smoke flow velocity on the cross section of described minor diameter cyclone pipe (404) is controlled at 8-12 mark meter per second.

4. multitube oil filter as claimed in claim 1 is characterized in that: the smoke outlet at every cyclone pipe has a leakproof oil cap (401) of holding back oil droplet.

5. multi-tube cyclone type oil filter as claimed in claim 1 is characterized in that: the gas approach end of described cyclone pipe (404) is flaring enlarging.

6. multi-tube cyclone type oil filter as claimed in claim 1 is characterized in that: multitube minor diameter cyclone pipe (404) is to hang on last support plate (402) by the oily caps of shelves (401) that are connected with the cyclone pipe screw top.

7. multi-tube cyclone type oil filter as claimed in claim 1 is characterized in that: described multi-tube cyclone type oil filter is an oil filter by the heat resistant plastice injection mo(u)lding.