CN211753275U - Improved energy-saving short venturi nozzle for long bag dust remover - Google Patents
Improved energy-saving short venturi nozzle for long bag dust remover Download PDFInfo
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- CN211753275U CN211753275U CN202020091671.4U CN202020091671U CN211753275U CN 211753275 U CN211753275 U CN 211753275U CN 202020091671 U CN202020091671 U CN 202020091671U CN 211753275 U CN211753275 U CN 211753275U
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- nozzle
- dust remover
- bag dust
- improved energy
- guide vane
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Abstract
The improved energy-saving short Venturi nozzle for the long bag dust remover is characterized in that a cyclone device comprising a guide vane (2) is arranged on the inner side of an upper end gas inlet of a nozzle (1) of a Venturi structure of the bag dust remover, and the middle shaft of the guide vane (2) is coaxial with the nozzle (1). The flow state of the injected gas is improved, the gas flow is stable as much as possible, the gas flow can go deep into the bottom of the filter bag, the back flushing effect of the filter bag is improved, the gas flow rotates under the flow guiding effect of the guide vanes, and the formed cyclone flow state is more stable under the rotating effect of the gas flow. The cyclone can enable the ash removal of the filter bag to be wavy, and the L/D can be reduced to below 1; the cyclone formed by the guide vanes can increase the stable airflow rotation distance by more than 25 percent compared with the traditional direct current distance; the pressure drop caused by the increase of the guide vanes is reduced by more than 30 percent than that caused by the increase of the throat, and the energy consumption of the nozzle is obviously reduced.
Description
Technical Field
The utility model relates to an innovative equipment device's institutional advancement technique, especially the short venturi nozzle of energy-saving that is used for long bag dust remover of modified.
Background
The bag type dust collector is a dry type dust filtering device. It is suitable for trapping fine, dry, non-fibrous dust. The filter bag is made of woven filter cloth or non-woven felt, the dust-containing gas is filtered by the filtering action of the fiber fabric, after the dust-containing gas enters the bag type dust collector, dust with large particles and large specific gravity falls into the dust hopper due to the sedimentation of the gravity, and when the gas containing fine dust passes through the filter material, the dust is blocked, so that the gas is purified.
The existing common venturi nozzle of a bag type dust collector, especially the long length of the filter bag of the dust collector, must increase the venturi nozzle, thus make the bag bottom obtain sufficient ash cleaning pressure, improve the ash cleaning effect of the bag bottom, and protect the filter bag, lengthen the service life of the filter bag, the common venturi nozzle is realized by lengthening the length of the throat of the venturi nozzle in order to realize this purpose, and this kind of conventional method has the following disadvantages:
1) the venturi throat is long, so that the pressure drop of back-blowing gas is increased, and the energy consumption is increased;
2) the increase in venturi throat length means that it is relatively expensive to manufacture;
3) the air outlet pipe of the nozzle needs to be optimally designed by a parabolic line, otherwise, the air flow is easy to disperse at the air outlet of the nozzle, the air flow cannot reach the bottom of the filter bag, and the top of the filter bag can be blown open.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a modified energy-saving short venturi nozzle that is used for long bag dust remover improves the gaseous flow state of jetting, makes the air current stable as far as, and can go deep into the filter bag bottom, improves the blowback effect of filter bag, especially the blowback effect of filter bag bottom.
The purpose of the utility model is realized by the following technical measures: comprises a nozzle and a guide vane; a cyclone device comprising a guide vane is arranged at the inner side of an upper end gas inlet of a nozzle of a Venturi structure of the bag type dust collector, and the central axis of the guide vane is coaxial with the nozzle.
In particular, the rotational flow device is provided with a symmetrical even number of guide vanes.
In particular, the upper surface of the guide vane is a free-form surface.
In particular, the clearance between the outer end of the guide vane and the inner wall of the nozzle is less than 20 mm.
In particular, the swirl device is mounted on the inner wall of the nozzle by means of a fixed connecting rod passing through the central axis.
In particular, the angle of inclination of the guide vanes to the central axis of the swirling device is 35-65 °.
In particular, the nozzle diameter D/nozzle height L is less than 1.
The utility model discloses an advantage and effect: can reduce L/D to below 1; the cyclone formed by the guide vanes can increase the stable airflow rotation distance by more than 25 percent compared with the traditional direct current distance; the pressure drop caused by increasing the guide vane length is reduced by more than 30 percent than that caused by increasing the throat length, and the energy consumption of the nozzle is obviously reduced.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of a guide vane in embodiment 1 of the present invention.
The reference numerals include:
Detailed Description
The utility model discloses the principle lies in, increases guide blade 2 at 1 gas entrance department of nozzle, and jetting gas gets into behind guide blade 2, and the water conservancy diversion effect through guide blade 2 takes place rotatoryly, and the air current is under rotatory effect, and the cyclone flow state of formation is more stable. And the cyclone can make the deashing of the filter bag wave-shaped, which is a very ideal state for the deashing of the filter bag, the deashing efficiency is higher, the cyclone can better bring the airflow to the bottom of the long filter bag, and the long-filter-bag deashing nozzle is very suitable for the deashing nozzle of the long filter bag.
The utility model discloses a: a nozzle 1 and guide vanes 2.
The present invention will be further explained with reference to the drawings and examples.
Example 1: as shown in fig. 1 and 2, a swirling device comprising a guide vane 2 is installed inside an upper end gas inlet of a nozzle 1 of a venturi structure of a bag type dust collector, and a central axis of the guide vane 2 is coaxial with the nozzle 1.
In the foregoing, the swirling device is provided with an even number of symmetrical guide vanes 2.
In the foregoing, the upper surface of the guide vane 2 is a free-form surface.
In the foregoing, the clearance between the outer end of the guide vane 2 and the inner wall of the nozzle 1 is less than 20 mm.
In the foregoing, the swirling device is mounted on the inner wall of the nozzle 1 by a fixed connecting rod passing through the central axis.
In the foregoing, the angle of inclination of the guide vane 2 to the central axis of the swirling device is 35-65 °.
In the above, the nozzle diameter D/nozzle height L is less than 1.
Claims (7)
1. The improved energy-saving short Venturi nozzle for the long bag dust remover comprises a nozzle (1) and guide vanes (2); the device is characterized in that a cyclone device comprising a guide vane (2) is arranged on the inner side of an upper end gas inlet of a nozzle (1) of a Venturi structure of the bag type dust collector, and the central axis of the guide vane (2) is coaxial with the nozzle (1).
2. The improved energy-saving short venturi nozzle for long bag dust remover according to claim 1, characterized in that the rotational flow device is installed with even number of symmetrical guide vanes (2).
3. The improved energy-saving short venturi nozzle for long bag dust remover according to claim 1, characterized in that the upper side surface of the guide vane (2) is a space free curved surface.
4. The improved energy-saving short venturi nozzle for long bag dust remover according to claim 1, characterized in that the gap between the outer end of guide vane (2) and the inner wall of nozzle (1) is less than 20 mm.
5. The improved energy-saving short venturi nozzle for long bag dust collector as claimed in claim 1, wherein the swirling device is installed on the inner wall of the nozzle (1) by a fixed link passing through the central axis.
6. The improved energy-saving short venturi nozzle for long bag dust remover according to claim 1, characterized in that the angle of inclination of the guide vane (2) and the central axis of the swirling device is 35-65 °.
7. The improved energy-saving short venturi nozzle for long bag dust remover according to claim 1, characterized in that the nozzle caliber D/nozzle height L is less than 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020091671.4U CN211753275U (en) | 2020-01-15 | 2020-01-15 | Improved energy-saving short venturi nozzle for long bag dust remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020091671.4U CN211753275U (en) | 2020-01-15 | 2020-01-15 | Improved energy-saving short venturi nozzle for long bag dust remover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211753275U true CN211753275U (en) | 2020-10-27 |
Family
ID=72892777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020091671.4U Active CN211753275U (en) | 2020-01-15 | 2020-01-15 | Improved energy-saving short venturi nozzle for long bag dust remover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211753275U (en) |
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2020
- 2020-01-15 CN CN202020091671.4U patent/CN211753275U/en active Active
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