CN217815558U - Sealing device of boiler soot blower - Google Patents
Sealing device of boiler soot blower Download PDFInfo
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- CN217815558U CN217815558U CN202222141463.2U CN202222141463U CN217815558U CN 217815558 U CN217815558 U CN 217815558U CN 202222141463 U CN202222141463 U CN 202222141463U CN 217815558 U CN217815558 U CN 217815558U
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- connecting pipe
- pipe
- wall
- soot blower
- oven
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Abstract
The utility model relates to a sealing device technical field specifically is a sealing device of boiler soot blower, wear to be equipped with the connecting pipe in the connecting hole, the one end of connecting pipe is provided with the board of supporting that offsets with the oven inner wall, and the front end of connecting pipe is provided with grafting portion, the pipe thread has been seted up on the surface of connecting pipe, and installs on the connecting pipe with pipe thread threaded connection and with the extrusion nut that the oven outer wall offseted. Through the setting of supporting board and extrusion nut, make being connected between connecting pipe and the oven inseparabler, increase the route of equipment seal department, thereby improve the sealed effect between connecting pipe and the oven, through the grafting between connecting pipe and the soot blower pipe, make things convenient for the installation of soot blower pipe, at grafting portion with insert the chamber, the setting of second flexible seal pad is down, improve the sealing performance between connecting pipe and the soot blower pipe, through the setting of first flexible seal pad and seal groove, further improve the connecting pipe and blow the sealed of soot blower pipe between.
Description
Technical Field
The utility model relates to a sealing device technical field specifically is a sealing device of boiler soot blower.
Background
In an electric power system, boiler soot deposition is one of important reasons influencing boiler performance, and in order to overcome the boiler soot deposition and improve the thermal efficiency of a boiler, on-line soot blower soot blowing is an effective method for solving the boiler soot deposition. The soot blower is used for blowing the heating surface of the boiler, and is mainly used for removing soot and slag on a water wall, a superheater, a reheater and an economizer, preventing soot from being deposited on the water wall pipe, the superheater pipe and the like, and reducing the heat absorption effect of the pipes. The soot blower penetrates through the furnace wall to enter the hearth for soot blowing, and because a certain gap is formed between the position of the wall through hole of the furnace wall and the soot blower pipe, hot air leaks outwards from the hearth, so that the heat efficiency of the boiler is influenced, and the external environment is polluted.
The Chinese patent application number (CN 201920458473.4) discloses a sealing device of a boiler soot blower, which is characterized in that two grooves are formed in a semicircular arc surface of a rigid sealing sheet, a graphite braided winding rope is adopted for sealing, the first sealing is used for blocking heat and air leakage at the boiler side, the second sealing bears less heat and is mainly used for blocking air leakage of a hearth, and therefore the double-sealing guarantee effect is achieved. However, when the device is used, each groove is equipped with a flexible sealing element, the rigid sealing element only plays a role of fixing with a wall body, and then only the flexible sealing element plays a role of sealing, and the flexible sealing element is easily heated and deformed under a high-temperature environment, so that the sealing performance of the device is reduced. Accordingly, one skilled in the art provides a sealing device for a soot blower of a boiler to solve the problems set forth in the background art described above.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sealing device of boiler soot blower to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a sealing device of boiler soot blower, includes the oven, sets up the connecting hole on the oven, wear to be equipped with the connecting pipe in the connecting hole, the one end of connecting pipe is provided with the board that supports that offsets with the oven inner wall, and the front end of connecting pipe is provided with grafting portion, the pipe thread has been seted up on the surface of connecting pipe, and installs on the connecting pipe with pipe thread threaded connection and the squeeze nut that offsets with the oven outer wall, squeeze nut keeps away from the one end of oven and has seted up the seal groove, the soot blower pipe is installed through pegging graft to the one end of connecting pipe, first sleeve is installed to the one end of soot blower pipe, clearance between first telescopic inner wall and the outer wall of soot blower pipe forms the chamber of inserting with the connecting pipe adaptation, and the one end of first sleeve install with the first flexible sealing pad of seal groove gomphosis.
As a further aspect of the present invention: one end of the soot blowing pipe is inserted into the connecting pipe, the inside of the insertion part is inserted into the insertion cavity, and the inner wall of the insertion cavity is provided with a second flexible sealing gasket which is abutted against the outer wall of the insertion part.
As a further aspect of the present invention: the soot blowing pipe and the first sleeve are integrally cast, the abutting plate and the connecting pipe are integrally cast, and a first rigid sealing gasket is arranged at the joint of the inner side of the abutting plate and the furnace wall.
As a further aspect of the present invention: the surface of the extrusion nut is provided with an anti-skid rib, and a second rigid sealing gasket is arranged at one end of the extrusion nut, which is abutted against the furnace wall.
As a further aspect of the present invention: one end of the first sleeve is provided with a first flange, the extrusion nut is provided with a second flange matched with the first flange, and the first flange is connected with the second flange through a bolt.
As a further aspect of the present invention: the surface of the soot blowing pipe is provided with an anticorrosive coating which is formed by spraying a coating made of epoxy resin.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of simple structure, novel design, through the setting of support board and extrusion nut, make being connected between connecting pipe and the oven inseparabler, increase the route of equipment sealing department, thereby improve the sealed effect between connecting pipe and the oven, through the grafting between connecting pipe and the soot blowing pipe, conveniently blow the installation of soot blowing pipe, in grafting portion with insert the chamber, the sealed setting of pad of second flexible seal, improve the connecting pipe and blow the sealing performance between the soot blowing pipe, through the setting of the sealed pad of first flexible seal and seal groove, further improve the connecting pipe and blow the sealed between the soot blowing pipe, in addition, promote the extrusion nut through first sleeve, make being connected between extrusion nut and the oven more stable, avoid equipment to receive the temperature influence effectively through mechanical seal, improve the sealing performance under the high temperature.
Drawings
FIG. 1 is a schematic structural view of a sealing device of a soot blower of a boiler;
FIG. 2 is a schematic view of the internal structure of a sealing device of a soot blower of a boiler;
FIG. 3 is a schematic view of a connection pipe in a sealing device of a soot blower for a boiler.
In the figure: 1. a furnace wall; 2. connecting holes; 3. a connecting pipe; 4. a plug-in part; 5. pipe threads; 6. a soot blowing pipe; 7. a first sleeve; 8. a first flange; 9. a second flange; 10. extruding the nut; 11. a resisting plate; 12. a first flexible gasket; 13. a sealing groove; 14. inserting a cavity; 15. a second flexible gasket.
Detailed Description
Referring to fig. 1 to 3, in an embodiment of the present invention, a sealing device for a soot blower of a boiler includes a furnace wall 1, a connecting hole 2 formed in the furnace wall 1, a connecting pipe 3 penetrating the connecting hole 2, a support plate 11 abutting against an inner wall of the furnace wall 1 provided at one end of the connecting pipe 3, and an insertion portion 4 provided at a front end of the connecting pipe 3, a pipe thread 5 provided on a surface of the connecting pipe 3, and an extrusion nut 10 threadedly coupled to the pipe thread 5 and abutting against an outer wall of the furnace wall 1 provided on the connecting pipe 3, a sealing groove 13 provided at an end of the extrusion nut 10 remote from the furnace wall 1, a soot blowing pipe 6 installed at one end of the connecting pipe 3 by insertion, a first sleeve 7 installed at one end of the soot blowing pipe 6, a cavity 14 adapted to the connecting pipe 3 is formed at a gap between an inner wall of the first sleeve 7 and an outer wall of the soot blowing pipe 6, and a first flexible sealing gasket 12 fitted into the sealing groove 13 is installed at one end of the first sleeve 7, the connecting pipe 3 is inserted into the connecting hole 2, the extrusion nut 10 is rotated to cause the support plate 11 to abut against an inner wall of the connecting pipe 1, thereby increasing a sealing effect of the second flexible sealing gasket 3, and increasing a sealing effect of the connecting pipe 3, and increasing a sealing gasket 12, thereby increasing a sealing effect of the sealing between the flexible sealing gasket 3, and increasing a sealing effect of the connecting pipe 3, and increasing a sealing gasket 12, and increasing a sealing effect of the sealing gasket 3, and increasing a sealing effect of the connecting pipe 3, and increasing a sealing gasket 12, in addition, the pressing nut 10 is pushed by the first sleeve 7, so that the connection between the pressing nut 10 and the furnace wall 1 is more stable.
In fig. 2, one end of the soot blowing pipe 6 is inserted into the connecting pipe 3, the inside of the inserting part 4 is inserted into the inserting cavity 14, the inner wall of the inserting cavity 14 is provided with a second flexible sealing gasket 15 abutting against the outer wall of the inserting part 4, and the inserting part 4 is inserted into the inserting cavity 14 and abuts against the second flexible sealing gasket 15, so that the sealing performance between the connecting pipe 3 and the soot blowing pipe 6 is improved.
In fig. 2 and 3, the soot blowing pipe 6 and the first sleeve 7 are integrally cast and formed, the abutting plate 11 and the connecting pipe 3 are integrally cast and formed, the sealing effect of the integral casting and forming is better, a first rigid sealing gasket is arranged at the joint of the inner side of the abutting plate 11 and the furnace wall 1, and the sealing effect between the abutting plate 11 and the furnace wall 1 is improved through the arrangement of the first rigid sealing gasket.
In fig. 2, the surface of the compression nut 10 is provided with an anti-slip rib, and a second rigid gasket is provided at an end of the compression nut 10 that abuts against the furnace wall 1, so that the sealing performance between the compression nut 10 and the furnace wall 1 is improved by the second rigid gasket.
In fig. 1 and 2, a first flange 8 is arranged at one end of the first sleeve 7, a second flange 9 adapted to the first flange 8 is arranged on the pressing nut 10, the first flange 8 and the second flange 9 are connected by bolts, and the first flange 8 and the second flange 9 are tightly connected by bolts.
In the figure 1, the surface of the soot blowing pipe 6 is provided with an anticorrosive coating which is formed by spraying epoxy resin paint, so that the anticorrosive performance of the equipment is improved.
The utility model discloses a theory of operation is: when the device is used, the connecting pipe 3 is inserted into the connecting hole 2, the extrusion nut 10 is rotated to enable the abutting plate 11 to abut against the inner wall of the furnace wall 1, the abutting plate 11 and the extrusion nut 10 are arranged, connection between the connecting pipe 3 and the furnace wall 1 is enabled to be tighter, the path of a device connection sealing position is increased, the sealing effect between the connecting pipe 3 and the furnace wall 1 is improved, the soot blowing pipe 6 is inserted into the connecting pipe 3, at the moment, the inserting part 4 is inserted into the inserting cavity 14 and abuts against the second flexible sealing gasket 15, the sealing performance between the connecting pipe 3 and the soot blowing pipe 6 is improved, through arrangement of the first flexible sealing gasket 12 and the sealing groove 13, sealing between the connecting pipe 3 and the soot blowing pipe 6 is further improved, the first flexible sealing gasket 12 and the second flexible sealing gasket 15 are far away from the furnace wall 1, therefore, temperature influence on the device is small, in addition, the extrusion nut 10 is pushed through the first sleeve 7, the connection between the extrusion nut 10 and the furnace wall 1 is enabled to be more stable, and tight connection between the first flange 8 and the second flange 9 is achieved through bolts, and the high-temperature influence on the device is effectively avoided being effectively through mechanical sealing performance.
The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a sealing device of boiler soot blower, includes oven (1), sets up connecting hole (2) on oven (1), its characterized in that, wear to be equipped with connecting pipe (3) in connecting hole (2), the one end of connecting pipe (3) is provided with support board (11) that offsets with oven (1) inner wall, and the front end of connecting pipe (3) is provided with grafting portion (4), pipe thread (5) have been seted up on the surface of connecting pipe (3), and install on connecting pipe (3) with pipe thread (5) threaded connection and with oven (1) outer wall offseting squeeze nut (10), seal groove (13) have been seted up to the one end that squeeze nut (10) kept away from oven (1), soot blowing pipe (6) is installed through the grafting to the one end of connecting pipe (3), first sleeve (7) are installed to the one end of soot blowing pipe (6), the clearance between the inner wall of first sleeve (7) and the outer wall of soot blowing pipe (6) forms and inserts chamber (14) of connecting pipe (3) adaptation, and the one end of first sleeve (7) install the sealed pad (12) of first flexible seal pad (13).
2. The sealing device of the boiler soot blower as claimed in claim 1, wherein one end of the soot blowing pipe (6) is inserted into the interior of the connecting pipe (3), the interior of the insertion part (4) is inserted into the interior of the insertion cavity (14), and the inner wall of the insertion cavity (14) is provided with a second flexible sealing gasket (15) which abuts against the outer wall of the insertion part (4).
3. The sealing device of the boiler soot blower of claim 1, characterized in that the soot blowing pipe (6) and the first sleeve (7) are formed by integral casting, the baffle plate (11) and the connecting pipe (3) are formed by integral casting, and a first rigid sealing gasket is arranged at the joint of the inner side of the baffle plate (11) and the furnace wall (1).
4. The sealing device of a boiler soot blower according to claim 1, characterized in that the surface of the compression nut (10) is provided with anti-slip ribs and the end of the compression nut (10) that is against the furnace wall (1) is provided with a second rigid sealing gasket.
5. The sealing device of the boiler soot blower of claim 1, characterized in that a first flange (8) is arranged at one end of the first sleeve (7), a second flange (9) matched with the first flange (8) is arranged on the extrusion nut (10), and the first flange (8) and the second flange (9) are connected through bolts.
6. The sealing device of the boiler soot blower according to claim 1, wherein an anticorrosive coating is provided on the surface of the soot blowing pipe (6), and the anticorrosive coating is formed by spraying a coating made of epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222141463.2U CN217815558U (en) | 2022-08-15 | 2022-08-15 | Sealing device of boiler soot blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222141463.2U CN217815558U (en) | 2022-08-15 | 2022-08-15 | Sealing device of boiler soot blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217815558U true CN217815558U (en) | 2022-11-15 |
Family
ID=83975414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222141463.2U Active CN217815558U (en) | 2022-08-15 | 2022-08-15 | Sealing device of boiler soot blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217815558U (en) |
-
2022
- 2022-08-15 CN CN202222141463.2U patent/CN217815558U/en active Active
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