CN201529462U

CN201529462U - Venturi and filter bag frame

Info

Publication number: CN201529462U
Application number: CN2009202406103U
Authority: CN
Inventors: 赵锦尧; 田世文
Original assignee: WENDENG MAXPOWER VENTILATOR CO Ltd
Current assignee: WENDENG MAXPOWER VENTILATOR CO Ltd
Priority date: 2009-10-29
Filing date: 2009-10-29
Publication date: 2010-07-21
Anticipated expiration: 2019-10-29

Abstract

The utility model relates to a dust removing apparatus of a pulse bag-type dust remover, that is a Venturi and a filter bag frame, Which includes a Venturi and a filter bag frame, and at least three positioning support members are equipped inside the frame top of the filter bag frame, throat diameter of the Venturi and the upper mouth of the filter bag frame are radially positioned at one plane through a positioning support member in the filter bag frame. The utility model has the a reasonable design and simple structure, and the top of the Venturi is improved, and the top surface of the filter bag frame is at the throat radial point of the Venturi, thereby increasing flow area of purified gas, reducing airflow resistance, saving electric energy, increasing filter area of precipitator, improving deashing effect and dedusting efficiency of filter bag wall.

Description

A kind of Venturi tube and filter bag framework

Technical field

The utility model relates to the dust arrester of pulse bag type dust collector, specifically a kind of Venturi tube and filter bag framework.

Background technology

In the existing sack cleaner, usually Venturi tube is installed in filter bag framework top oral area, the filter bag framework is installed in the filter bag of deduster porous plate, in dusty gas enters deduster, dirt gas sees through filter bag, and dust is delayed at the outer surface of filter bag, and purified gas is gushed out from the filter bag inner chamber, enter deduster pure qi (oxygen) casing, enter atmosphere by air-introduced machine.After deduster work a period of time, when the dust of filter bag outer surface accumulates to certain thickness, when the dust pelletizing system resistance increases, need to spray deashing with the pulse compression air.During work, controller sends instruction, opens pulse valve, compressed air moment the nozzle by the winding-up pipe spray into the filter bag inner chamber, when compressed air passes through the larynx footpath of Venturi tube at a high speed, form bigger negative pressure on the top of filter bag, induce to be several times as much as the compressed-air actuated pure air of winding-up (deashing secondary wind) and to pour in the filter bag inner chamber simultaneously, make filter bag moment inverse expansion, remove the dust layer that the filter bag outer surface adheres to, realize the efficient purification of filter bag thus, save compressed air, energy savings.

But in use there is following problem in the filter bag framework of existing band Venturi tube:

1, the pure air that the sees through filter bag filter bag of need gushing out from bottom to top, must be through Venturi tube larynx suitable for reading footpath (the common filter bag diameter 〉=120mm of filter bag framework, Venturi tube larynx footpath 〉=46mm), herein the sectional area of gas channel dwindle greatly (circulation area only for the filter bag sectional area about 16%), obviously increase the discharge resistance of clean gas greatly, caused the resistance total amount of cleaner to increase greatly;

2, from the angle of deashing, the Venturi tube larynx has directly hindered the flow of deashing secondary wind, has significantly weakened the impulsive force of deashing secondary wind to the filter bag inner chamber, thereby has reduced ash-removal effect;

3, because Venturi tube is inserted into the filter bag inner chamber, its end opening is subjected to intensity that air pulse impacts deashing with the lower part filter bag and is far longer than part in the Venturi tube length range, influences this part filter bag ash removal effect, has reduced the filtering function of this part.

Summary of the invention

The purpose of this utility model is in order to solve the deficiency of above technology, to provide a kind of rational in infrastructure, simple, and performance is good, can improve the Venturi tube and the filter bag framework of filtering function effectively.

The utility model solves the scheme that its technical problem is taked: a kind of Venturi tube and filter bag framework, comprise Venturi tube and filter bag framework, it is characterized in that being provided with at least 3 positioning supporting parts in the arch of filter bag framework, the larynx footpath of Venturi tube and filter bag framework suitable for reading on a plane by the positioning supporting part radial location in the filter bag framework.

The length of support member of the present utility model is that the cage bone top mouthful internal diameter of framework deducts 1/2nd of venturi throat external diameter.

Promptly change the mutual alignment relation of Venturi tube and filter bag framework, improve the installation site of Venturi tube, make Venturi tube upwards improve 50～150mm from filter bag framework faying face, thereby make between Venturi tube larynx footpath and the filter bag framework and form annular air-flow path, gas channel is increased to more than 90% by original about 16%, increase the circulation area of purifying gas flow and pulse secondary wind greatly, reduced equipment resistance, reduced power consumption; And, but the secondary wind multichannel of impulse jet air-flow and its guiding enters the filter bag inner chamber, has accelerated the movement velocity of deashing air-flow, and the gas channel of increase makes jet-stream wind act on corresponding filter bag wall, has improved the filter area and the ash-removal effect characteristics of filter bag.

The utlity model has reasonable in design, simple in structure, improve on the top of Venturi tube, the end face of filter bag framework is directly located at the Venturi tube larynx, increased the circulation area of Purge gas, reduced gas-flow resistance, can save electric energy, increase the filter area of deduster, improve ash-removal effect and efficiency of dust collection the filter bag wall.

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

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the A-A view among Fig. 1.

Mark among the figure: 1, Venturi tube, 2, filter bag, 3, framework, 4, support member.

The specific embodiment

As seen from Figure 1, Figure 2, a kind of Venturi tube and filter bag framework, comprise Venturi tube 1 and filter bag 2 frameworks 3, in framework 3 tops of filter bag 2 frameworks, be provided with at least 3 positioning supporting parts 4, the larynx footpath of Venturi

tube

1 and 3 positioning supporting part 4 radial locations in the filter bag framework is passed through on a plane suitable for reading of filter bag framework.

The length of support member 4 of the present utility model is that the cage bone top mouthful internal diameter of framework deducts 1/2nd of venturi throat external diameter.

Support member 4 radial locations of installing more than 3 or 3 between the inboard of the end suitable for reading of filter bag framework 3 and the outside, Venturi tube larynx footpath are supported, the installation site of Venturi tube is upwards raised, reduce the length of Venturi tube 1 in filter bag framework 3, the annular air-flow path that forms between the larynx footpath of Venturi tube 1 and the filter bag framework 3, increased the circulation area of gas greatly, reduce gas-flow resistance, equipment running resistance, reduced power consumption; And the secondary deashing air-flow that compressed air is induced pours in filter bag 2 inner chambers by multichannel, has accelerated the deashing air velocity, has improved the filter bag ash removal effect; The utility model changes the combining form of Venturi tube 1 and filter bag framework 3, and the length space that makes the pulse dust cleaning air-flow act on the filter bag inner chamber increases, and has improved the ash-removal effect at this position, has increased the filter area of deduster, has improved ash-removal effect and efficiency of dust collection.

Claims

1. pen container, it comprises cylindrical shell, it is characterized in that: be provided with three layers of fixed support in the described cylindrical shell at least, at least be provided with a long locating hole and a short locating hole on the fixed support of the superiors, the support bracket fastened correspondence position of inner barrel is provided with a long locating hole, and the support bracket fastened below of orlop is provided with storing part.

2. pen container according to claim 1 is characterized in that: be provided with several long locating holes on described the superiors fixed support.

3. pen container according to claim 1 and 2 is characterized in that: be provided with several short locating holes on described the superiors fixed support.