CN210993354U - Flue gas filtering device - Google Patents
Flue gas filtering device Download PDFInfo
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- CN210993354U CN210993354U CN201921151396.4U CN201921151396U CN210993354U CN 210993354 U CN210993354 U CN 210993354U CN 201921151396 U CN201921151396 U CN 201921151396U CN 210993354 U CN210993354 U CN 210993354U
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- filtering device
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Abstract
The utility model relates to a flue gas filtering device, which comprises an air chamber, a filter arranged in the air chamber and a purging nozzle used for cleaning the filter, wherein the air chamber comprises a flue gas inlet, a cavity and a flue gas outlet; the blowing nozzle comprises at least two blowing nozzles which are respectively distributed on two sides of the filter, the blowing nozzles are arranged on the side wall of the air chamber and are communicated with high-pressure gas, and the extension direction of the tangent line of the gas outlet of the blowing nozzle is arranged at an included angle with the side wall of the filter, and the included angle is an acute angle. The device realizes the high-efficient clearance to the filter surface through the cooperation of air chamber, filter and sweeping the mouth.
Description
Technical Field
The invention relates to a filtering device, in particular to a smoke filtering device.
Background
The smoke contains a large amount of harmful substances, and if the smoke needs to be filtered and treated in the air and then can be discharged, the existing smoke filtering device cannot effectively sweep and clean the filter or has a limited cleaning area, so that the filter is blocked to influence the filtering effect.
Disclosure of Invention
In order to improve the smoke filtering quality and ensure the using effect of the filter, the invention provides the smoke filtering device, which realizes the efficient cleaning of the surface of the filter through the matching of the air chamber, the filter and the blowing nozzle.
The scheme adopted by the invention is as follows: a flue gas filtering device comprises a gas chamber, a filter arranged in the gas chamber and a purging nozzle used for cleaning the filter, wherein the gas chamber comprises a flue gas inlet, a cavity and a flue gas outlet;
the blowing nozzle comprises at least two nozzles which are respectively distributed on two sides of the filter, the blowing nozzle is arranged on the side wall of the air chamber, the blowing nozzle is communicated with high-pressure gas, the extension direction of the tangent line of the gas outlet of the blowing nozzle is arranged at an included angle with the side wall of the filter, and the included angle is an acute angle.
Further, the air chamber is communicated with a hollow probe rod, two ends of the hollow probe rod are opened, one end of the hollow probe rod extends into the flue gas pipeline, and the other end of the hollow probe rod is communicated with the flue gas inlet end of the air chamber.
Further, the air chamber is of a straight cylinder structure, the outlet of the filter is connected with the smoke outlet, a spacing interval is arranged between the outer side wall of the filter and the inner side wall of the air chamber, and the air outlet of the blowing nozzle is communicated with the spacing interval.
Further, air chamber and filter are straight tubular construction, the air chamber width is greater than the filter width, the filter wall is the inside and outside microporous structure of intercommunication filter, the air chamber with the filter axis is unanimous, it sweeps the mouth including first mouth and the second of sweeping to sweep the mouth, and the gas outlet tangent line place straight line that the mouth was swept to first blowing is first tangent line, the gas outlet tangent line place straight line that the mouth was swept to the second is the second tangent line, first tangent line and second tangent line all with the axis is the setting of antarafacial contained angle.
Further, the first tangent line is tangent to the filter sidewall and the second tangent line is tangent to the filter sidewall.
Further, the first blowing nozzle and the second blowing nozzle are arranged on two opposite sides of the central axis.
Further, the flue gas entrance of air chamber is frustum shape hole, frustum shape hole includes macropore end and aperture end, the macropore end is towards the air chamber in, the aperture end is towards the air chamber outside, and the flue gas gets into through macropore end and macropore end in proper order the air chamber.
Further, the first purging nozzle and the second purging nozzle are communicated with high-pressure gas through a three-way joint.
The beneficial effects produced by the invention comprise:
drawings
FIG. 1 is a front view of the structure of the flue gas filtering device of the present invention;
FIG. 2 is a side view of the structure of the flue gas filtering device of the present invention;
FIG. 3 is a top view of the smoke filter of the present invention;
FIG. 4 is a bottom view of the smoke filter of the present invention;
FIG. 5 is an exploded view of the flue gas filtration unit of the present invention;
FIG. 6 is a cross-sectional view of a flue gas filtration unit of the present invention;
FIG. 7 is a top sectional view of the flue gas filtering device of the present invention;
FIGS. 8(a) and (b) are a schematic structural view and a sectional view of a purge nozzle according to the present invention;
FIG. 8(c) (d) are views from two opposite perspectives of the purge nozzle, respectively;
FIG. 9 is a cross-sectional view of a gas cell of the present invention;
in the figure, 1, an air chamber, 2, a filter, 3, a blowing nozzle, 301, a first blowing nozzle, 302, a second blowing nozzle, 303, an air outlet, 4, an interval, 5, a probe rod, 6, a conical table hole, 601, a large hole end, 602, a small hole end, 7, a three-way joint, 8, a stainless steel pipe, 9, an air chamber cover, 901, a right-angle clamping sleeve threaded joint, 10, a sealing ring, 11, a first joint, 12 and a second joint are arranged.
Detailed Description
The present invention is explained in further detail below with reference to the drawings and the detailed description, but it should be understood that the scope of the present invention is not limited by the detailed description.
As shown in fig. 1 to 7, an embodiment of the present invention provides a flue gas filtering apparatus, which includes a hollow probe 5, a gas chamber 1, a filter 2 disposed in the gas chamber 1, and a purging nozzle 3 for cleaning the filter 2, where the gas chamber 1 and the hollow probe 5 are both hollow structures, two ends of the hollow probe 5 are open, one end is communicated with a flue gas pipeline, and the other end is communicated with the gas chamber 1, the gas chamber 1 includes a flue gas inlet, a cavity, and a flue gas outlet, the flue gas inlet is communicated with the probe 5, the filter 2 is disposed in the cavity, when in use, the hollow probe 5 is inserted into the flue gas pipeline, the gas chamber 1 is disposed outside the flue gas pipeline, and flue gas in the flue gas pipeline enters the cavity of the gas chamber 1 through the probe 5, then passes through the filter 2. Air chamber 1 and filter 2 are straight tubular construction in this embodiment, specifically can be the drum structure, the exhanst gas outlet department of air chamber 1 sets up right angle cutting ferrule screwed joint, exhanst gas outlet department at air chamber 1 sets up air chamber lid 9, be provided with the through-hole on the air chamber lid 9, right angle cutting ferrule screwed joint passes the export of through-hole intercommunication filter 2 of air chamber lid 9, the flue gas after the filtration is discharged through right angle cutting ferrule screwed joint, 2 lateral walls of filter are microporous construction, the flue gas is gone into filter 2 after the micropore filtration inside, discharge through right angle cutting ferrule screwed joint at last.
In this embodiment, the air chamber 1 and the filter 2 are both of a straight-tube structure, the air chamber 1 includes a first end (i.e., an end where the flue gas inlet is located) and a second end (i.e., an end where the flue gas outlet is located), the filter 2 includes a third end and a fourth end (i.e., an outlet of the filter 2), the filter 2 is sleeved in the air chamber 1, the second end and the fourth end coincide, and an interval 4 is formed between an inner wall of the air chamber 1 and an outer wall of the filter 2.
As shown in fig. 8, in order to clean the filter 2, a first purge nozzle 301 and a second purge nozzle 302 are arranged on the filter device, the two purge nozzles 3 are respectively communicated with the tee joint 7 through a first joint 11 and a second joint 12 and then communicated with high-pressure gas, the first purge nozzle 301 and the second purge nozzle 302 are respectively arranged at two opposite sides of the filter 2 and are respectively arranged on the side wall of the air chamber 1 near the second end part, the straight line where the tangent of the gas outlet 303 of the first purge nozzle 301 is located is a first tangent, the straight line where the tangent of the gas outlet 303 of the second purge nozzle is located is a second tangent, the first tangent and the second tangent are both arranged at different included angles with the central axis, that is, the high-pressure gas ejected by the first purge nozzle 301 is not directly blown to the filter 2 but deviates from the central axis and is ejected towards the first end part obliquely, the first purge nozzle 301 and the second purge nozzle 302 are arranged at two opposite sides of the central axis, and the same plane where the central axis and the two purge nozzles are located is taken, the plane both sides are first side and second side respectively, and first tangent line is to first end and first side slope, and the second tangent line is to second end and second side slope, and this design can guarantee that two strands of air currents form spiral air current in interval 4, and interval 4 is very narrow and small, and high-pressure draught forms spiral flow air current in narrow and small space, has guaranteed that the air current can pass through 2 lateral walls of filter everywhere. To enhance the effect, the first tangent is tangent to the side wall of the filter 2 and the second tangent is tangent to the side wall of the filter 2.
As shown in fig. 9, in the present embodiment, a flue gas inlet of the gas chamber 1 is a frustum-shaped hole, the frustum-shaped hole includes a large hole end 601 and a small hole end 602, the large hole end 601 faces the inside of the gas chamber 1, the small hole end 602 faces the outside of the gas chamber 1, and the flue gas sequentially enters the gas chamber 1 through the small hole end 602 and the large hole end 601. The dust that is cleared up by high-pressure draught falls into frustum shape hole department, and high-pressure draught spirals and has a process of pressurization with higher speed after passing through the frustum shape hole 6 again, and this structure makes dust and impurity on the 2 outer walls of filter can not pile up at the inner wall of air chamber 1 after sweeping down by spiral draught, but can be quick drop through in the frustum shape hole, and then make impurity blow away along probe rod 5 holes, has accomplished the process of sweeping like this.
The gas chamber cover 9 is connected with the gas chamber 1 through screws, the filter 2 is screwed on the gas chamber cover 9 in a threaded mode, then the assembled parts are inserted into the gas chamber 1 from top to bottom, and the sealing ring 10 is placed on the contact plane of the gas chamber cover 9 and the gas chamber 1, so that the outer wall of the filter 2 and the inner wall of the gas chamber 1 form a spacing interval 4, smoke can enter the gas chamber 1 from the tail end of the probe rod 5, dust and impurities in the smoke are filtered through the microporous structure of the filter 2, then the smoke enters the inner cavity of the filter 2 from the outer wall of the filter 2, and then the smoke goes out of the inner hole of the right-angle cutting sleeve threaded connector connected with the top of the gas chamber cover 9 to instrument equipment;
in a specific implementation mode of the embodiment of the invention, 2 purging nozzles 37 are installed on the air chamber 1 near the upper part of the filter 23, the purging nozzles 3 are welded at the circumferential diameter end of the air chamber 1, the two purging nozzles 3 are installed oppositely, but because the outlet tangents of the purging nozzles 37 are not opposite, namely the high-pressure air flow is obliquely blown to the filter 2, the air paths of the two purging nozzles 3 are not directly blown to the filter 2, but are respectively blown to the obliquely lower side. The right-angle cutting sleeve threaded connector is installed at the outer end of the blowing nozzle 3, a cutting sleeve end of the cartoon threaded connector is connected with a stainless steel pipe 8, and the two stainless steel pipes 8 are connected through a cutting sleeve three-way connector 7 to form a one-to-two air inlet system.
In summary, the working process of the purging device for the probe gas chamber 1 and the filter 2 in the embodiment of the invention is as follows:
flue gas coming from a flue enters the air chamber 1 through the probe rod 5, the gas needs to pass through the filter 2 and then goes out from the right-angle clamping sleeve threaded connector on the air chamber cover 9, so that the flue gas can form attachment on the filter 2 due to some impurities which are not avoided, if the flue gas is not purged for a long time, the outer surface of the filter 2 is blocked by the impurities quickly to cause failure of the filter 2, two opposite purging nozzles 3 are installed at proper positions on the upper part of the air chamber 1, the outer ends of the two purging nozzles 3 are connected through a stainless steel pipe 8 and a clamping sleeve three-way connector 7 to form a gas path of one-to-two rotation, compressed air is introduced into a port of the clamping sleeve three-way connector 7, the compressed air is divided into two paths after passing through the clamping sleeve three-way connector 7, and the two paths enter the two purging nozzles 3 along the stainless steel pipe 8, the two air flows sprayed out by the blowing nozzle 3 are not formed to be blown on the filter 2 in pairs, but are blown on the outer surface of the filter 2 obliquely, and after the filter 2 is arranged in the air chamber 1, the space is narrow, so that the two air flows can be blown obliquely and spirally along with the outer surface of the filter 2, and the smoke impurities attached to the filter 2 can be blown down.
In summary, the following steps:
the purging device and method for the filter 2 in the probe gas chamber 1 provided by the invention provide a high-speed spiral purging mode, are thorough in purging, wide in purging range, high in reliability and simple in installation, and can realize the periodic purging of impurities on the whole surface of the filter 23. The regular period means that the personnel regularly introduce the compressed gas.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the content of the embodiment. It will be apparent to those skilled in the art that various changes and modifications can be made within the technical scope of the present invention, and any changes and modifications made are within the protective scope of the present invention.
Claims (8)
1. A flue gas filtering device is characterized in that: the gas chamber comprises a flue gas inlet, a cavity and a flue gas outlet, wherein flue gas enters the cavity from the flue gas inlet and is discharged from the flue gas outlet through the filter, and the filter outlet is communicated with the flue gas outlet end;
the blowing nozzle comprises at least two nozzles which are respectively distributed on two sides of the filter, the blowing nozzle is arranged on the side wall of the air chamber, the blowing nozzle is communicated with high-pressure gas, the extension direction of the tangent line of the gas outlet of the blowing nozzle is arranged at an included angle with the side wall of the filter, and the included angle is an acute angle.
2. The flue gas filtering device according to claim 1, wherein: the air chamber is communicated with a hollow probe rod, two ends of the hollow probe rod are opened, one end of the hollow probe rod extends into the flue gas pipeline, and the other end of the hollow probe rod is communicated with the flue gas inlet end of the air chamber.
3. The flue gas filtering device according to claim 1, wherein: the air chamber is of a straight cylinder structure, the outlet of the filter is connected with the flue gas outlet, a spacing interval is arranged between the outer side wall of the filter and the inner side wall of the air chamber, and the gas outlet of the blowing nozzle is communicated with the spacing interval.
4. The flue gas filtering device according to claim 1, wherein: the air chamber and the filter are straight cylinder structures, the air chamber width is greater than the filter width, the filter wall is the inside and outside microporous structure of intercommunication filter, the air chamber with the filter axis is unanimous, it sweeps the mouth including first mouth and the second of sweeping to sweep the mouth, and the gas outlet tangent line place straight line that the mouth was swept to first sweeping is first tangent line, the gas outlet tangent line place straight line that the mouth was swept to the second is the second tangent line, first tangent line and second tangent line all with the axis is the setting of antarafacial contained angle.
5. The flue gas filtering device according to claim 4, wherein: the first tangent is tangent to the filter sidewall and the second tangent is tangent to the filter sidewall.
6. The flue gas filtering device according to claim 4, wherein: the first blowing nozzle and the second blowing nozzle are arranged on two opposite sides of the central axis.
7. The flue gas filtering device according to claim 1, wherein: the flue gas entrance of air chamber is frustum shape hole, frustum shape hole includes macropore end and aperture end, the macropore end is towards in the air chamber, the aperture end is outside the air chamber, and the flue gas gets into through macropore end and macropore end in proper order the air chamber.
8. The flue gas filtering device according to claim 4, wherein: the first purging nozzle and the second purging nozzle are communicated with high-pressure gas through a three-way joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921151396.4U CN210993354U (en) | 2019-07-22 | 2019-07-22 | Flue gas filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921151396.4U CN210993354U (en) | 2019-07-22 | 2019-07-22 | Flue gas filtering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210993354U true CN210993354U (en) | 2020-07-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921151396.4U Active CN210993354U (en) | 2019-07-22 | 2019-07-22 | Flue gas filtering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210993354U (en) |
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2019
- 2019-07-22 CN CN201921151396.4U patent/CN210993354U/en active Active
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