CN208406456U - A kind of Venturi wet-process dust-extraction unit - Google Patents
A kind of Venturi wet-process dust-extraction unit Download PDFInfo
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- CN208406456U CN208406456U CN201820524574.2U CN201820524574U CN208406456U CN 208406456 U CN208406456 U CN 208406456U CN 201820524574 U CN201820524574 U CN 201820524574U CN 208406456 U CN208406456 U CN 208406456U
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- China
- Prior art keywords
- working medium
- dedusting working
- venturi
- dedusting
- dust
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Abstract
The utility model provides a kind of Venturi wet-process dust-extraction unit, and structure is simple, and design rationally, realizes to efficient low-resistance the uniform mixing of dedusting working medium and dust-contained airflow, easy to implement easy, low in cost, social benefit is significant, can wide popularization and application.The device includes sequentially connected Venturi tube and demister, and the contraction section middle position before venturi throat is inserted into and crosses the dedusting working medium of Venturi tube and introduces pipe；The part that the dedusting working medium introduces in pipe insertion Venturi tube is symmetrically arranged with equal laminated structure in two sides up and down；Dedusting working medium introduce pipe along the cross section of dusty gas flow direction be it is streamlined, the setting of equal laminated structure is backwards to dust-contained airflow direction of flow；Equal laminated structure is for spraying into dedusting working medium uniformly along Venturi tube width direction.
Description
Technical field
The utility model relates to dedusting environment friendly equipment, specially a kind of Venturi wet-process dust-extraction unit.
Background technique
Contain a large amount of dust in coal-burned industrial boiler and the tail gas of kiln discharge, it is dirty that direct emission will cause serious environment
Dye.Increasingly strict with Environmental Protection in China standard, flue gas has to pass through dust-extraction unit and could discharge.
Venturi wet-process dust-extraction unit is a kind of high-efficient wet-type dust-extraction unit, can be used to cooling high-temperature fume, can also be net
Change containing superfine powder dust particle and be easy to the toxic and harmful gas of washing absorption, has that small investment, structure be simple, Operation and Maintenance side
Just, the features such as occupied area is small, in China's high-capacity industrial boiler, industrial furnace and part flue gas in power station boiler cleaning equipment
Occupy comparable quantity.
But existing Venturi wet-process dust-extraction unit mainly axially draws on the outside of venturi throat or along Venturi tube
Enter dedusting working medium, dusty gas and dedusting refrigerant flow rate difference are too big, cause the adherent flowing of dedusting working medium, dusty gas and dedusting work
Matter undercompounding, throat's dedusting working medium are unevenly distributed, and dust removing effects decline, device water consumption increases, dust-contained airflow flowing
Resistance increases.Shaped Venturi dedusting unit efficiency is had a significant impact studies have shown that dedusting working medium sprays into uniformity, is removed not reducing
Dirt effect and in the case where not dramatically increasing energy consumption, improving dedusting working medium and dust-contained airflow mixing uniformity has significant meaning,
Traditional Venturi wet-process dust-extraction unit is improved extremely urgent.
Utility model content
Aiming at the problems existing in the prior art, the utility model provides a kind of Venturi wet-process dust-extraction unit, structure letter
Single, design rationally, realizes to efficient low-resistance the uniform mixing of dedusting working medium and dust-contained airflow, easy to implement easy, at low cost
Honest and clean, social benefit is significant, can wide popularization and application.
The utility model is to be achieved through the following technical solutions:
A kind of Venturi wet-process dust-extraction unit, including sequentially connected Venturi tube and demister, and from Venturi tube
Contraction section middle position before throat is inserted into and crosses the dedusting working medium introducing pipe of Venturi tube；
The part that the dedusting working medium introduces in pipe insertion Venturi tube is symmetrically arranged with equal laminated structure in two sides up and down；It removes
Dirt working medium introduce pipe along the cross section of dusty gas flow direction be it is streamlined, the setting of equal laminated structure is backwards to dust-contained airflow incoming flow
Direction；Equal laminated structure is for spraying into dedusting working medium uniformly along Venturi tube width direction.
Preferably, the equal laminated structure is by pressing theoretical calculation to obtain introducing pipe dedusting working medium flow direction along dedusting working medium
The variable diameter circular hole for the row's reduced diameter being arranged or the trapezoid slit of width decrement.
Preferably, dedusting working medium sprays into Venturi tube from equal laminated structure with the direction with dust-contained airflow incoming flow less than 90 °
In.
Preferably, dedusting working medium introduces the middle position of pipe contraction section before venturi throat in unilateral insertion setting
Or two sides are symmetrically inserted into and are collinearly arranged in dusty gas channel.
Preferably, dedusting working medium introduces pipe and is sequentially arranged along dusty gas channel in single arrangement or more.
Preferably, it is desulfurization slurry that dedusting working medium, which introduces pipe and introduces dedusting working medium,.
Compared with prior art, the utility model has technical effect beneficial below:
Dedusting working medium is to receive in Venturi tube before throat by introducing pipe using dedusting working medium by the utility model
Contracting section middle position introduces, and intermediate intake method spreads dedusting working medium from intermediate portion outward, dust-laden working medium flow-disturbing dedusting work
Matter, which is introduced into the wake flow of pipe generation, a large amount of small whirlpool, and wake flow center is low-pressure area, is conducive to dusty gas and dedusting
Working medium mixing.Consideration dedusting working medium spraying inhomogeneities caused by introducing, the outlet of dedusting working medium introducing pipe, which uses, symmetrically presses
Structure can uniformly spray into dedusting working medium, and this structure enables dedusting working medium uniformly to spray into dust-contained airflow channel, to uniformly mixed
Highly beneficial, the mixing of reinforcing dusty gas and dedusting working medium is closed, in the short period and apart from the interior uniform mixing for realizing the two.
The streamlined setting of pipe is introduced by dedusting working medium, reduces dusty gas flowing in the introducing resistance and Venturi tube of dedusting working medium
Resistance.Flue gas water content can be significantly reduced finally by demister.It manufactures and easy for installation and high-efficient, system resistance is small.
Further, by dedusting working medium by equal laminated structure from introduce pipe backwards to less than 90 ° directions of dusty gas incoming flow
It uniformly sprays into dust-contained airflow, guarantees to spray into uniformly, mixing is abundant.
Further, two introduce pipe in the dedusting working medium being arranged in Venturi tube is symmetrically inserted into, and adapt to live ring
Border guarantees the stability of dedusting working medium more uniform penetrating and structure.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Venturi wet-process dust-extraction unit described in the example of the utility model.
Fig. 2 a is the top view that dedusting working medium introduces pipe.
Fig. 2 b is the variable diameter Circularhole diameter schematic diagram of equal laminated structure described in the example of the utility model.
Fig. 2 c is the trapezoid slit diametric representation of equal laminated structure described in the example of the utility model.The middle initial segment length in gap
Spend b, gap tip length a, gap length L, gap initial position and walling of flue spacing L0Etc. parameters can be by pressing theoretical meter
It obtains.
In figure: dedusting working medium introduces pipe 1, Venturi tube 2, equal laminated structure 3, demister 4, dedusting working medium delivery pump 5, Wen Qiu
In Wet-way dust-collector 6, blower 7, desulfurizer 8, chimney 9.
Specific embodiment
The utility model is described in further detail below with reference to specific embodiment, described is to the utility model
Explanation rather than limit.
A kind of Venturi wet-process dust-extraction unit of the utility model, as shown in Figure 1 comprising dedusting working medium introduces pipe 1, literary mound
In pipe 2, equal laminated structure 3 and demister 4.Wherein dedusting working medium introduces contraction section interposition of the pipe 1 before 2 throat of Venturi tube
It sets and is inserted into and crosses Venturi tube 2, and it is streamlined, dedusting that dedusting working medium, which introduces pipe 1 along the section of dust-contained airflow flow direction,
Working medium introduces part that pipe 1 is inserted into Venturi tube 2, and two sides symmetric positions is provided with equal laminated structure 3 up and down, and dedusting working medium is from equal
To spray into Venturi tube 2 with direction of the dust-contained airflow incoming flow less than 90 ° in laminated structure 3, dedusting working medium and dust-contained airflow are realized
Quick uniform mixing, mixed airflow after demister 4 by discharging.The utility model realizes dedusting work using equal laminated structure 3
Matter is uniformly injected in dust-contained airflow, guarantees the uniformity of dedusting working medium and dust-contained airflow mixing.Dedusting working medium introduces 1 streamline of pipe
Type design reduces the resistance in Venturi tube 2.The method that the utility model is proposed can be applicable to industrial dust-laden exhaust gas and contain
In the purification of dirt sulphur-containing exhaust gas.
Dedusting working medium introduces pipe 1 by dedusting working medium and introduces from the intermediate of contraction section before 2 throat of Venturi tube, then passes through
Equal laminated structure 3 uniformly sprays into dusty gas channel, mixes with dusty gas Quick uniform.For the resistance for reducing shaped Venturi dedusting equipment
Power, it is streamlined along air current flow direction cross sectional shape that dedusting working medium, which introduces pipe 1 in 2 inner part of Venturi tube,；Equal laminated structure 3
Dedusting working medium is set and introduces the position symmetrical above and below that pipe 1 is inserted into 2 inner part of Venturi tube；Mixed airflow by demister 4 it
After discharge.
Wherein, equal laminated structure 3 is the row's variable diameter circular hole or trapezoid slit obtained according to pressure theoretical calculation.Its top view
As shown in Figure 2 a；Variable diameter circular hole such as Fig. 2 b of its row's reduced diameter that the flow direction setting of 1 dedusting working medium of pipe is introduced along dedusting working medium
Shown, each circular hole is successively uniformly arranged, and diameter is gradually reduced, can be by theoretical calculation being pressed to obtain；It or is one
The trapezoid slit of width decrement is as shown in Figure 2 c, at the beginning of gap initial segment length b, gap tip length a, gap length L, gap
Beginning position and walling of flue spacing L0It can be by theoretical calculation being pressed to obtain.
Dedusting working medium introduces pipe 1 and is inserted into simultaneously from the middle position of contraction section before 2 throat of Venturi tube from unilateral or two sides
Dusty gas channel is crossed, i.e., in the cross section in middle position, eradicates dirt working medium using one and introduces pipe 1 from any side in single
Side insertion, or introduce pipe 1 in dedusting working medium symmetrical and being collinearly arranged using two and be radially inserted into docking contact, dedusting work
Matter introduces pipe 1 can single or more arrangement along dusty gas channel.It is desulfurization slurry that dedusting working medium, which introduces pipe 1 and introduces dedusting working medium,
When, which can be achieved at the same time two kinds of functions of dust-removal and desulfurizing.
A kind of Venturi wet-process dust-extraction unit of the utility model, in use, dedusting working medium is from 2 throat's contraction section of Venturi tube
Unilateral or two sides introduce dusty gas channel before, then the equal laminated structure 3 introduced on pipe by dust-laden working medium uniformly sprays into literary mound
In in pipe, mixed with dusty gas Quick uniform.Dedusting working medium introduces pipe and is inserted into and crosses dusty gas channel, dedusting in scheme
Working medium jet stream is uniformly sprayed into dust-contained airflow from equal laminated structure with the angle with dusty gas main flow direction less than 90 °.Dedusting
Working medium introduces pipe can arrange more in Venturi tube, can also only arrange single.
The device is in use, dedusting working medium introducing pipe 1 is inserted into and crosses from Venturi tube unilateral side or two sides middle position
Venturi tube, this incorporation way belong to intermediate intake method, different from being injected directly into mode from venturi throat periphery.It removes
The position symmetrical above and below that dirt working medium introduces pipe 1 is provided with equal laminated structure 3, can find out the specific of equal laminated structure according to pressure theory
Parameter, this equal laminated structure 3 enable to dedusting working medium uniformly to spray into along 2 width direction of Venturi tube.Intermediate intake method makes
It obtains dedusting working medium to spread from intermediate portion outward, good mixing effect, high dust collection efficiency.Dusty gas introduces pipe 1 around dedusting working medium
Fluid Flow Around Blunt Body occurs boundary layer separation at bluff body rear and forms tail, forms many whirlpools in tail, the presence of whirlpool adds
Acute flow disturbance, and the center of tail portion whirlpool is low-pressure area, and the inflow that the presence of low-pressure area has conducive to ambient gas adds
Fast mixed gas is spread to center, improves mixing efficiency.
The device is in use, introducing pipe 1 using airflow design for dedusting working medium and carrying out to the size of equal laminated structure 3
Control, so that the resistance and dust-contained airflow of introducing dedusting working medium drop to system allowed band by the flow resistance of Venturi tube
It is interior, reduce extra power consumption.Pipe is introduced in the streamlined design in section of dust-contained airflow flow direction, increases and introduces pipe in ash-laden gas
Size in body flow direction, reduces the size of short transverse.The local resistance for managing equal laminated structure 3, equal laminated structure 3 are introduced in order to reduce
The muzzle velocity of place's dedusting working medium should not be too large.Verified, dusty gas and dedusting working medium can be in shorter times and smaller
Distance in be uniformly mixed, while introducing the resistance very little of dedusting working medium.The equal laminated structure 3 in position symmetrical above and below for introducing pipe is arranged
Backwards to dust-contained airflow incoming flow side, there are an angle less than 90 ° between dedusting working medium jet direction and dust-contained airflow flow direction,
This is conducive to reduce dusty gas flow resistance.The device is in use, can arrange that dirt working medium of eradicating are drawn more in Venturi tube
Enter pipe, only arrangement one can also eradicate dirt working medium introducing pipe.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that specific embodiment of the present utility model is only limitted to this, for the utility model person of an ordinary skill in the technical field
For, without departing from the concept of the premise utility, several simple deduction or replace can also be made, all should be considered as
Belong to the utility model and determines scope of patent protection by the claims submitted.
Claims (6)
1. a kind of Venturi wet-process dust-extraction unit, which is characterized in that including sequentially connected Venturi tube (2) and demister (4),
And the contraction section middle position before Venturi tube (2) throat is inserted into and crosses the dedusting working medium introducing of Venturi tube (2)
It manages (1)；
The part that the dedusting working medium introduces in pipe (1) insertion Venturi tube (2) is symmetrically arranged with equal laminated structure in two sides up and down
(3)；Dedusting working medium introduces the cross section for managing (1) along dusty gas flow direction to be streamlined, and equal laminated structure (3) is arranged backwards
Dust-contained airflow direction of flow；Equal laminated structure (3) is for spraying into dedusting working medium uniformly along Venturi tube (2) width direction.
2. a kind of Venturi wet-process dust-extraction unit according to claim 1, which is characterized in that the equal laminated structure (3) is
Pass through the variable diameter circle for pressing theoretical calculation to obtain introducing row's reduced diameter of pipe (1) dedusting working medium flow direction setting along dedusting working medium
The trapezoid slit of hole or the decrement of a width.
3. a kind of Venturi wet-process dust-extraction unit according to claim 1, which is characterized in that dedusting working medium is from equal laminated structure
(3) to be sprayed into Venturi tube (2) with direction of the dust-contained airflow incoming flow less than 90 ° in.
4. a kind of Venturi wet-process dust-extraction unit according to claim 1, which is characterized in that dedusting working medium introduces pipe (1)
It is symmetrically inserted into and from the middle position of contraction section before Venturi tube (2) throat in unilateral insertion setting or two sides in dusty gas
Collinearly it is arranged in channel.
5. a kind of Venturi wet-process dust-extraction unit according to claim 1, which is characterized in that dedusting working medium introduces pipe (1)
It is sequentially arranged along dusty gas channel in single arrangement or more.
6. a kind of Venturi wet-process dust-extraction unit according to claim 1, which is characterized in that dedusting working medium introduces pipe (1)
Introducing dedusting working medium is desulfurization slurry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820524574.2U CN208406456U (en) | 2018-04-13 | 2018-04-13 | A kind of Venturi wet-process dust-extraction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820524574.2U CN208406456U (en) | 2018-04-13 | 2018-04-13 | A kind of Venturi wet-process dust-extraction unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208406456U true CN208406456U (en) | 2019-01-22 |
Family
ID=65119959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820524574.2U Expired - Fee Related CN208406456U (en) | 2018-04-13 | 2018-04-13 | A kind of Venturi wet-process dust-extraction unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208406456U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108295596A (en) * | 2018-04-13 | 2018-07-20 | 西安交通大学 | A kind of Venturi wet-process dust-extraction unit and fire coal boiler fume purification system |
-
2018
- 2018-04-13 CN CN201820524574.2U patent/CN208406456U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108295596A (en) * | 2018-04-13 | 2018-07-20 | 西安交通大学 | A kind of Venturi wet-process dust-extraction unit and fire coal boiler fume purification system |
| CN108295596B (en) * | 2018-04-13 | 2024-03-29 | 西安交通大学 | Venturi wet dust collector and coal fired boiler flue gas purification system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190122 Termination date: 20190413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |