CN201454288U

CN201454288U - Pulse bag type precipitator

Info

Publication number: CN201454288U
Application number: CN2009200781509U
Authority: CN
Inventors: 唐瑶
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-07-07
Filing date: 2009-07-07
Publication date: 2010-05-12
Anticipated expiration: 2019-07-07

Abstract

The utility model provides a pulse bag type precipitator, which comprises a venturi tube, a venturi tube bracket and a filter bag, wherein the venture tube comprises a reducing tube, a throat and a divergent tube, and the tube wall of the divergent tube is provided with a through hole. According to the embodiment of the utility model, when the pulse bag type precipitator is used for deashing via pulse blowing, the service life of the filter bag is prolonged, and energy source is saved.

Description

A kind of pulse bag type dust collector

Technical field

The utility model relates to the industrial dedusting technical field, particularly relates to a kind of pulse bag type dust collector.

Background technology

Pulse bag type dust collector is because of saving the energy, the equipment operation management expense is low, plurality of advantages such as efficiency of dust collection height, saving capital expenditure, volume and floor space are little, at home and abroad development is very fast, the trend that replaces chamber-dividing counter-blowing sack cleaner and electric cleaner is arranged, and application at home and abroad is also more and more.After pulse bag type dust collector filters dusty gas by filter bag, enter the flow process that dust that the filter bag outer surface is adhered to is removed.Wherein, the high pressure inverted draft enters filter bag by the winding-up pipe Venturi tube of flowing through, and filter bag is expanded rapidly, and makes filter bag produce vibration, and then removes the dust of filter bag outer surface.

But, the inventor finds under study for action, because the operating pressure of high-voltage pulse sack cleaner is generally 0.1 to 2 MPa, filter bag is being carried out in the deashing process, the high pressure inverted draft is assembled the formation high pressure draught through being easy to behind the increaser of Venturi tube at the aditus laryngis position of Venturi tube, and the winding-up of filter bag top is bad, make life of bag filter shorten greatly.

The utility model content

At above-mentioned technical problem, the purpose of this utility model is, a kind of pulse bag type dust collector is provided, and to prolong the service life of filter bag, saves the energy.

Embodiment of the present utility model provides following technical scheme:

Present embodiment discloses a kind of pulse bag type dust collector, comprising: Venturi tube, Venturi tube carriage and filter bag, wherein, described Venturi tube comprises reducing pipe, aditus laryngis and increaser, it is characterized in that, offers through hole on the tube wall of described increaser.

Preferably, described Venturi tube carriage is non-enclosed type carriage.

By above-mentioned embodiment of the present utility model as can be seen, after offering through hole on the sidewall of increaser, when high velocity air is flowed through the increaser of Venturi tube, part high velocity air flows out Venturi tube from the convergent mouth of pipe, another part high velocity air flows out Venturi tube by the through hole of offering on the increaser sidewall, can not assemble the formation high pressure draught from the high velocity air that through hole flows out at the aditus laryngis position of Venturi tube, and then just avoided that also the winding-up of filter bag top is bad, prolong the service life of filter bag, saved the energy.

Description of drawings

Fig. 1 is the structural representation of the utility model pulse bag type dust collector;

Fig. 2 is the organigram of Venturi tube;

When Fig. 3 entered the filtration state for pulsaire collector, high pressure draught was at the schematic diagram that flows to of Venturi tube inside.

Fig. 1 is in Fig. 3:

Pulse valve 1, branch gas bag 2, pulse jetting deashing pipe 3, Venturi tube 4, access door 5, card 6, escape pipe 7, the pipe valve 8 of giving vent to anger, filter bag casing 9, filter bag 10, cage bone 11, air inlet pipe 12, ash bucket 13, unloading valve 14, Venturi tube carriage 15, reducing pipe 16, aditus laryngis 17, the pipe tap 18 of increaser, increaser 19.

The specific embodiment

Below in conjunction with accompanying drawing content of the present utility model is described in detail, the description of this part only is exemplary and explanatory, should any restriction not arranged to protection domain of the present utility model.

See also Fig. 1, Fig. 1 is the structural representation of the utility model pulse bag type dust collector, and the arrow among the figure is represented deduster when the state of filtration, the flow direction of air-flow.This pulse bag type dust collector comprises pulse valve 1, divides gas bag 2, pulse jetting deashing pipe 3, Venturi tube 4, access door 5, card 6, escape pipe 7, the pipe valve 8 of giving vent to anger, filter bag casing 9, filter bag 10, cage bone 11, air inlet pipe 12, ash bucket 13, unloading valve 14, Venturi tube carriage 15, reducing pipe 16, aditus laryngis 17, the pipe tap 18 of increaser, increaser 19.Wherein, Venturi tube 4 comprises reducing pipe 16, aditus laryngis 17 and increaser 19, offers through hole on the sidewall of increaser 19, sees also Fig. 2, and Fig. 2 is the organigram of Venturi tube, and arrow is represented deduster when the deashing state among the figure, the flow direction of air-flow.

When pulse bag type dust collector enters the deashing state, pulse valve 1 is opened, divide gas bag 2 that high velocity air is sprayed into the inside of filter bag 10 through the upper end of pulse jetting deashing pipe 3, Venturi tube 4 and filter bag 10, filter bag 10 is expanded rapidly, and produce to vibrate and remove the dust that the filter bag outer surface adheres to.After offering through hole on the sidewall of increaser 19, when high velocity air is flowed through the increaser 19 of Venturi tube, a part flows out Venturi tube 4 from the mouth of pipe of reducing pipe 16, another part flows out Venturi tube 4 by the through hole of offering on increaser 19 sidewalls, can not assemble the formation high pressure draught from the high velocity air that through hole flows out at aditus laryngis 17 positions of Venturi tube 4, and then just avoided that also the top winding-up of filter bag 10 is bad, and prolonged the service life of filter bag 10, saved the energy.

Need to prove that the utility model does not limit the size and the number of the through hole offered on the increaser 19, can be provided with arbitrarily according to user's needs and concrete environment for use.

In addition, the Venturi tube carriage 15 in the utility model can also further be set to non-enclosed type.

See also Fig. 3, when Fig. 3 entered the filtration state for pulsaire collector, high pressure draught was at the schematic diagram that flows to of Venturi tube inside, and arrow is represented the flow direction of high pressure draught among the figure.

After deashing finishes, pulse bag type dust collector enters the filtration state once more, clean gas after the filtration of filter bag 10 of dusty gas process is except can being drained in the atmosphere via Venturi tube 4 and escape pipe 7, can also be when the increaser 19 of process Venturi tube 4, space between the through hole of offering via increaser 19, Venturi tube carriage 15 and the filter bag 10 successively, non-case type Venturi tube carriage 15 and escape pipe 7 enter in the atmosphere.Owing to increased the path of exhaust newly, make that the exhaust process under the filtration state is more smooth and easy, avoided air-flow in Venturi tube, to produce jam.

Need to prove, the utility model does not limit the concrete shape of non-enclosed type Venturi tube carriage 15, can on existing enclosed type Venturi tube carriage, offer passage, make it become a non-enclosed type Venturi tube carriage, also can set up other any type of non-case type new bracket.

The above only is the preferred implementation of utility model; should be understood that; for those skilled in the art; under the principle prerequisite that does not break away from the utility model description; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. a pulse bag type dust collector comprises Venturi tube, Venturi tube carriage and filter bag, and wherein, described Venturi tube comprises reducing pipe, aditus laryngis and increaser, it is characterized in that, offers through hole on the tube wall of described increaser.

2. pulse bag type dust collector according to claim 1 is characterized in that, described Venturi tube carriage is non-enclosed type carriage.