CN210638058U - Positive pressure sealing device of soot blower - Google Patents

Abstract

The utility model discloses a positive pressure sealing device of soot blower, including first fixed plate, second fixed plate, movable sleeve and soot blower barrel body, the first fixed frame of left side fixedly connected with of flexible first fixed plate to the fixed frame of right side fixedly connected with second of second fixed plate, the utility model relates to a soot blower technical field. This positive pressure sealing device of soot blower, the back through two fixed blocks all is connected with the closing plate through the connecting rod rotation, when gaseous backward flow in furnace, can make the closing plate rotate to the direction of soot blower barrel body, and promote the movable sleeve left, can effectively prevent gaseous leakage, avoid the dust to fly out from furnace, sealed effect has been strengthened, the practicality has been improved, when soot blower barrel body moves to the stove, can drive the movable sleeve and move right, the second sealing washer card advances the second seal groove, can prevent that outside air from getting into furnace, prevent the burning of dyestuff peroxide, reduce coking phenomenon's incidence.

Description

Positive pressure sealing device of soot blower

Technical Field

The utility model relates to a soot blower technical field specifically is a soot blower malleation sealing device.

Background

The soot blower is a device for removing soot on the heating surface of a boiler, usually consists of a soot blowing pipe, an operation valve and other parts, is generally respectively arranged on the furnace walls of a boiler hearth, a horizontal flue, a tail flue and the like, has a plurality of types such as gun type, rotary type, telescopic type and the like according to the structural type, and has three types of air soot blowers, steam soot blowers and hydraulic soot blowers according to different used media, wherein the air soot blower blows off the soot on the heating surface by utilizing the high-pressure airflow impact force of compressed air; the steam soot blower is commonly used for industrial boilers, utilizes the high-speed jet impact force of superheated steam to remove soot on a heating surface, is mostly applied to various power plant boilers, and is also called as a 'slag blower' by taking high-pressure water as a medium to promote the ash adhered on the heating surface to be removed due to quenching and brittle fracture; the soot blower is only suitable for individual special occasions, soot on the heating surface can affect the heat transfer effect, the exhaust gas temperature is increased, the boiler efficiency is reduced, and the superheater can be subjected to pipe explosion accidents in severe cases, so that the soot blower is used regularly to remove the soot on various heating surfaces in time, and the soot blower plays an important role in ensuring the safe and economic operation of the boiler.

The soot blower pipeline has certain space with the oven junction, and gas can leak away from the gap in the flexible in-process stove of pipeline, takes out the dust and flies upward in the air, the polluted environment, consequently needs sealing device to avoid taking place this kind of phenomenon, but current sealing device generally can not reach better sealed effect, and the pipeline is flexible or still has the dust to fly out in the soot blower working process, has reduced the practicality.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a positive pressure sealing device of soot blower has solved sealed effect relatively poor, and the polluted environment is leaked to the ashes, the lower problem of practicality.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a positive pressure sealing device of a soot blower comprises a first fixing plate, a second fixing plate, a movable sleeve and a soot blower gun barrel body, wherein the left side of the telescopic first fixing plate is fixedly connected with a first fixing frame, and the right side of the second fixed plate is fixedly connected with a second fixed frame, the left side of the movable sleeve penetrates through the first fixed frame and extends to the inside of the first fixed frame, the right side of the movable sleeve penetrates through the second fixed frame and extends to the inside of the second fixed frame, the right side of the second fixed plate and the inside of the second fixed frame are fixedly connected with a first fixed ring, a first lantern ring is fixedly connected on the right side of the surface of the movable sleeve, a first spring is fixedly connected between one side of the movable sleeve opposite to the first fixed ring, the top and the bottom on the right side of the inner wall of the movable sleeve are fixedly connected with fixing blocks, and the back faces of the two fixing blocks are rotatably connected with sealing plates through connecting rods.

Preferably, the right side of second fixed plate just is located the first stopper of inside fixedly connected with of the fixed frame of second to the first sealing washer of right side fixedly connected with of first fixed block, the first seal groove with first sealing washer looks adaptation is seted up in the left side of the first lantern ring.

Preferably, the left side of first fixed plate and the fixed ring of inside fixedly connected with second that is located first fixed frame, fixedly connected with second spring before the relative one side of movable sleeve and the fixed ring of second.

Preferably, the left side fixedly connected with second lantern ring on activity cover surface, the equal fixedly connected with second stopper in one side that first fixed plate and first fixed frame inner wall are relative.

Preferably, two equal fixedly connected with second sealing washer in the relative one side of second stopper, the second seal groove with second sealing washer looks adaptation is all seted up to the both sides of second movable sleeve.

Preferably, the one end of soot blower barrel body runs through first fixed frame, movable sleeve and the fixed frame of second from a left side to the right side in proper order and extends to the right side of the fixed frame of second, the square cover of fixed surface connection of soot blower barrel body.

Advantageous effects

The utility model provides a positive pressure sealing device of a soot blower. Compared with the prior art, the method has the following beneficial effects:

(1) this positive pressure sealing device of soot blower, the right side through the second fixed plate just is located the first solid fixed ring of inside fixedly connected with of second fixed frame, the first lantern ring of right side fixedly connected with on movable sleeve surface, the first spring of fixedly connected with between the relative one side of movable sleeve and first solid fixed ring, the top on movable sleeve inner wall right side and the equal fixedly connected with fixed block in bottom, the back of two fixed blocks all rotates through the connecting rod and is connected with the closing plate, when gaseous backward flow in furnace, can make the closing plate rotate to the direction of soot blower barrel body, and promote the movable sleeve left, first sealing washer blocks into in the first seal groove, can prevent effectively that gas from revealing, avoid the dust to fly out in the furnace, sealed effect has been strengthened, the practicality has been improved.

(2) This positive pressure sealing device of soot blower, fixedly connected with second spring before the solid fixed ring relative one side of one side through the movable sleeve with the second, the equal fixedly connected with second sealing washer in the relative one side of two second stoppers, the second seal groove with second sealing washer looks adaptation is all seted up to the both sides of second movable sleeve, when soot blower barrel body moves to the stove, can drive the movable sleeve and move right, the second sealing washer card advances the second seal groove, can prevent that outside air from getting into furnace, prevent dyestuff peroxide combustion, reduce coking phenomenon's incidence.

Drawings

FIG. 1 is a sectional view of the structure of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a partial enlarged view of the point B in fig. 1 according to the present invention.

In the figure: 1 first fixed plate, 2 second fixed plates, 3 movable sleeves, 4 soot blower barrel bodies, 5 first fixed frames, 6 second fixed frames, 7 first fixed rings, 8 first lantern rings, 9 first springs, 10 fixed blocks, 11 sealing plates, 12 first limiting blocks, 13 first sealing rings, 14 first sealing grooves, 15 second fixed rings, 16 second springs, 17 second lantern rings, 18 second limiting blocks, 19 second sealing rings, 20 second sealing grooves and 21 square sleeves.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a positive pressure sealing device of a soot blower comprises a first fixing plate 1, a second fixing plate 2, a movable sleeve 3 and a soot blower barrel body 4, wherein the first fixing plate 1 and the second fixing plate 2 are respectively fixed on the inner side and the outer side of a furnace wall through bolts, a nozzle is fixedly connected to the right end of the soot blower barrel body 4, one end of the soot blower barrel body 4 sequentially penetrates through a first fixing frame 5, the movable sleeve 3 and a second fixing frame 6 from left to right and extends to the right side of the second fixing frame 6, a square sleeve 21 is fixedly connected to the surface of the soot blower barrel body 4, a sealing plate 11 is inconveniently attached to the surface of the soot blower barrel body 4 due to the fact that the cross section of the soot blower barrel body 4 is circular, a layer of the square sleeve 21 with a square cross section is arranged on the surface of the soot blower barrel body 4, the sealing plate 11 can be closely attached to the barrel, a better sealing effect is, a second limiting block 18 is fixedly connected to one side of the first fixing plate 1 opposite to the inner wall of the first fixing frame 5, a second sealing ring 19 is fixedly connected to one side of the second limiting block 18 opposite to the second limiting block, a second sealing groove 20 matched with the second sealing ring 19 is formed in each of two sides of the second movable sleeve 3, a second fixing ring 15 is fixedly connected to the left side of the first fixing plate 1 and positioned in the first fixing frame 5, a second spring 16 is fixedly connected to the front of one side of the movable sleeve 3 opposite to the second fixing ring 15, the first spring 9 and the second spring 16 both play a role in buffering, a first limiting block 12 is fixedly connected to the right side of the second fixing plate 2 and positioned in the second fixing frame 6, a first sealing ring 13 is fixedly connected to the right side of the first fixing block 10, a first sealing groove 14 matched with the first sealing ring 13 is formed in the left side of the first lantern ring 8, the first fixing frame 5 is fixedly connected to the left side of the, and the fixed frame 6 of right side fixedly connected with second of second fixed plate 2, the left side of movable sleeve 3 runs through first fixed frame 5 and extends to the inside of first fixed frame 5, the right side of movable sleeve 3 runs through the fixed frame 6 of second and extends to the inside of the fixed frame 6 of second, the right side of second fixed plate 2 just is located the first solid fixed ring 7 of the inside fixedly connected with of the fixed frame 6 of second, the first lantern ring 8 of the right side fixedly connected with on movable sleeve 3 surface, the first spring 9 of fixedly connected with between one side that movable sleeve 3 and first solid fixed ring 7 are relative, the top on inner wall right side of movable sleeve 3 and the equal fixedly connected with fixed block 10 in bottom, and the back of two fixed blocks 10 all rotates through the connecting rod and is connected with closing plate.

When the device works, if gas in the hearth flows back, the sealing plate 11 can rotate, one side of the sealing plate 11 close to the square sleeve 21 is tightly attached to the surface of the square sleeve 21, the gas is prevented from leaking from a gap between the square sleeve 21 and the movable sleeve 3, the gas enters the second fixing frame 6, the movable sleeve 3 is pushed leftwards, the first sleeve 8 moves, and the first sealing ring 13 is clamped into the first sealing groove 14, meanwhile, the first spring 9 is compressed, so that gas can be prevented from leaking from a gap between the movable sleeve 3 and the furnace wall, dust in the furnace can be effectively prevented from leaking, when the soot blower gun barrel body 4 extends towards the interior of the hearth, the movable sleeve 3 and the second sleeve ring 17 are driven to move, the second sealing ring 19 is clamped into the second sealing groove 20, and a small amount of external gas enters the interior of the hearth through a gap between the square sleeve 21 and the inner wall of the movable sleeve 3, so that the internal gas is prevented from leaking.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a positive pressure sealing device of soot blower, includes first fixed plate (1), second fixed plate (2), movable sleeve (3) and soot blower barrel body (4), the first fixed frame of left side fixedly connected with (5) of flexible first fixed plate (1) to the fixed frame of right side fixedly connected with second (6) of second fixed plate (2), its characterized in that: the left side of movable sleeve (3) runs through first fixed frame (5) and extends to the inside of first fixed frame (5), the right side of movable sleeve (3) runs through the fixed frame of second (6) and extends to the inside of the fixed frame of second (6), the right side of second fixed plate (2) and be located the first solid fixed ring of inside fixedly connected with (7) of the fixed frame of second (6), the first lantern ring of right side fixedly connected with (8) on movable sleeve (3) surface, the first spring of fixedly connected with (9) between one side that movable sleeve (3) and first solid fixed ring (7) are relative, the top and the equal fixedly connected with fixed block in bottom (10) on movable sleeve (3) inner wall right side to the back of two fixed blocks (10) all rotates through the connecting rod and is connected with closing plate (11).

2. The positive pressure sealing device of the soot blower as claimed in claim 1, wherein: the right side of second fixed plate (2) just is located the first stopper of inside fixedly connected with (12) of the fixed frame of second (6) to the first sealing washer (13) of right side fixedly connected with of first fixed block (10), first seal groove (14) with first sealing washer (13) looks adaptation are seted up in the left side of first lantern ring (8).

3. The positive pressure sealing device of the soot blower as claimed in claim 1, wherein: the left side of first fixed plate (1) and the solid fixed ring of inside fixedly connected with second (15) that is located first fixed frame (5), fixedly connected with second spring (16) before the solid fixed ring of one side (15) relative of movable sleeve (3) and second.

4. The positive pressure sealing device of the soot blower as claimed in claim 1, wherein: the left side fixedly connected with second lantern ring (17) on activity cover (3) surface, first fixed plate (1) and first fixed frame (5) inner wall relative one side equal fixedly connected with second stopper (18).

5. The positive pressure sealing device of the soot blower as claimed in claim 4, wherein: two equal fixedly connected with second sealing washer (19) in the relative one side of second stopper (18), second seal groove (20) with second sealing washer (19) looks adaptation are all seted up to the both sides of second movable sleeve (3).

6. The positive pressure sealing device of the soot blower as claimed in claim 1, wherein: the one end of soot blower barrel body (4) runs through first fixed frame (5), movable sleeve (3) and the fixed frame of second (6) and extends to the right side of the fixed frame of second (6) from a left side to the right side in proper order, the square cover of fixed surface (21) that is connected with of soot blower barrel body (4).

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