CN215782208U - Back-blowing structure of cloth bag venturi nozzle - Google Patents
Back-blowing structure of cloth bag venturi nozzle Download PDFInfo
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- CN215782208U CN215782208U CN202121930037.6U CN202121930037U CN215782208U CN 215782208 U CN215782208 U CN 215782208U CN 202121930037 U CN202121930037 U CN 202121930037U CN 215782208 U CN215782208 U CN 215782208U
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Abstract
The bag venturi nozzle back-blowing structure belongs to the technical field of dust removal venturi nozzle back-blowing structures, and comprises at least one bag and at least one venturi nozzle, wherein the air outlet of each venturi nozzle is aligned to the air inlet of the corresponding bag, and the air outlet of each venturi nozzle is spaced from the air inlet of the corresponding bag. The Venturi nozzle is connected with the back-blowing pipe, air is supplied by the sub-cylinder, high-pressure gas back-blown from the Venturi nozzle is injected by the high-pressure gas in the nozzle, and ambient air is exploded and impacted forwards along the injection direction together according to the Venturi principle, so that the blowing gas is amplified, the blowing capacity is multiplied, and a better cloth bag surface dust removal blowing effect is achieved.
Description
Technical Field
The utility model belongs to the technical field of a dust removal Venturi nozzle back-blowing structure, and particularly relates to a bag Venturi nozzle back-blowing structure.
Background
The filter element is a filter bag or a filter cartridge dust remover, one of the key factors of the dust removal efficiency is the effect of back-blowing and dust removal after dust is accumulated on the surface of the filter bag or the filter cartridge, and the most key component for ensuring the dust removal effect to meet the design requirement is a back-blowing nozzle.
Dust collectors of other companies in the market at present use circular tubes 6 with different diameters and lengths of 30-50 mm as back-blowing nozzles as shown in fig. 4-5, the back-blowing gas flow from a common nozzle is narrow as shown in fig. 4-5 (a), the narrow injection effect of the high-pressure gas flow of the common nozzle is not obvious, the amount of gas injected into a cloth bag is small, as shown in fig. 4-5 (b), the venturi nozzle is arranged at the inlet of the cloth bag to limit the gas flow, as shown in fig. 4-5 (c), the back-blowing effect is very poor and mainly represented as follows: the bag is not completely pasted during the ash removal, the blowing direction deviates to blow the cloth bag, and the shaking amount is small due to the fact that the quantity of gas entering the cloth bag is small and the cloth bag is not expanded obviously, so that the ash removal effect is not obvious and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a bag venturi nozzle back-blowing structure, which strengthens the blowing air flow by utilizing the venturi principle, has the characteristics of increased back-blowing air quantity, strong directionality and uniform distribution of the back-blowing air quantity of each bag, and further obtains the best blowing effect.
The technical scheme is as follows:
the bag venturi nozzle back-blowing structure comprises at least one bag and at least one venturi nozzle.
The technical key points are as follows:
the air outlet of each Venturi nozzle is aligned to the air inlet of the corresponding cloth bag, and a space is reserved between the air outlet of the Venturi nozzle and the air inlet of the cloth bag.
The Venturi nozzle is connected with a back flushing pipe and is supplied with air by a sub-cylinder (P = 3.5-6.0 atmospheric pressure).
The advantages are that:
high-pressure gas (a part in a figure 1-2) blown back from the Venturi nozzle is injected by the high-pressure gas of the nozzle, and ambient air is exploded and impacted forwards along the injection direction together according to the Venturi principle, so that the blown gas is amplified, the blowing capacity is doubled, and a better dust removal blowing effect on the surface of the cloth bag is achieved, as shown in a part b in the figure 1-2.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged partial view of the upper portion of fig. 1.
Fig. 3 is an enlarged view of the venturi nozzle and its flow in the upper partial enlarged view of fig. 1.
Fig. 4 is a schematic structural diagram of the prior art.
Fig. 5 is an enlarged partial view of the upper part of fig. 4.
A back flushing pipe 1, a Venturi nozzle 2, an electromagnetic pulse valve 3, a cloth bag 4, a dust collector lower opening 5, a circular pipe 6 and a sub-cylinder 7.
Detailed Description
The bag venturi nozzle back-blowing structure comprises a back-blowing pipe 1 and a plurality of venturi nozzles 2.
One end of the back flushing pipe 1 is closed, and the other end of the back flushing pipe is connected with an air outlet of the electromagnetic pulse valve 3 behind the air cylinder 7.
The back flushing pipe 1 is provided with a plurality of Venturi nozzles 2, and air inlets (small openings) of the Venturi nozzles 2 are connected with the back flushing pipe 1.
The air outlet (large opening) of the Venturi nozzle 2 is downwards aligned with the air inlet of the cloth bag 4 of the dust collector below, and a certain distance is reserved between the air outlet of the Venturi nozzle 2 and the air inlet of the cloth bag 4.
A blowback pipe 1 and a plurality of Venturi nozzles 2 are arranged at the top of the dust remover.
Because the filter cloth bag is used in the production process, a lot of dust is attached to the surface of the cloth bag 4. Compressed air stored in the sub-cylinder 7 passes through the electromagnetic pulse valve 3, supplies air to the venturi nozzles 2 from the back flushing pipe 1, enters the cloth bag 4 under the action of high-pressure gas and injection gas of the venturi nozzles 2, and the cloth bag 4 rapidly expands and shakes to shake off dust attached to the surface of the cloth bag 4 and fall into the lower opening 5 of the dust collector.
The Venturi nozzles 2 with different types can be arranged according to the requirements, and the Venturi nozzles 2 are of variable diameter structures and are provided with small openings and large openings.
Claims (3)
1. A bag Venturi nozzle back-blowing structure, which comprises at least one bag (4) and at least one Venturi nozzle
(2) The method is characterized in that:
the air outlet of each Venturi nozzle (2) is aligned with the air inlet of the corresponding cloth bag (4), and the air outlet of each Venturi nozzle (2) is spaced from the air inlet of the corresponding cloth bag (4);
the Venturi nozzle (2) is connected with the back flushing pipe (1) and is supplied with air by the branch air cylinder (7).
2. The bag venturi nozzle blowback structure of claim 1, wherein:
the Venturi nozzle (2) is positioned above the cloth bag (4).
3. The bag venturi nozzle blowback structure of claim 1, wherein:
the back flushing pipe (1) is one, and the Venturi nozzle (2) is arranged on the back flushing pipe (1);
one end of the back flushing pipe (1) is closed, and the other end of the back flushing pipe is connected with an air outlet of the electromagnetic pulse valve (3) behind the air cylinder (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121930037.6U CN215782208U (en) | 2021-08-18 | 2021-08-18 | Back-blowing structure of cloth bag venturi nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121930037.6U CN215782208U (en) | 2021-08-18 | 2021-08-18 | Back-blowing structure of cloth bag venturi nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215782208U true CN215782208U (en) | 2022-02-11 |
Family
ID=80132610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121930037.6U Active CN215782208U (en) | 2021-08-18 | 2021-08-18 | Back-blowing structure of cloth bag venturi nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215782208U (en) |
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2021
- 2021-08-18 CN CN202121930037.6U patent/CN215782208U/en active Active
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