CN213542453U

CN213542453U - Side wall adherence air adding device of front and rear wall opposed firing boiler

Info

Publication number: CN213542453U
Application number: CN202022619701.7U
Authority: CN
Inventors: 姚建龙; 武瑞梅; 沈玮
Original assignee: Inner Mongolia Helin Power Generation Co ltd
Current assignee: Inner Mongolia Helin Power Generation Co ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-06-25
Anticipated expiration: 2030-11-12

Abstract

The utility model discloses a front and back wall offset combustion boiler side wall adherence wind adds device, including offset combustion boiler body, chimney, air heater and forced draught blower, the one end of offset combustion boiler body is provided with the discharge flue, and the discharge flue is linked together with the chimney, the middle-end of discharge flue is provided with air heater, and air heater's one end is connected with first gas-supply pipe and second gas-supply pipe respectively. This front and back wall adds device to rushing burning boiler side wall adherence wind, through stirring the handle, make the handle rotate and slide under through and fixed threaded connection between the pipe, make the handle drive air nozzle through the connecting pipe and slide, set up through air nozzle both sides arc form, make the air nozzle receive after the extrusion toward the inside slip of connecting pipe, made things convenient for the connecting pipe to drive the outside of air nozzle roll-off hedging burning boiler body, thereby be favorable to carrying out the work of mediation to the air nozzle, be favorable to dismantling the work of after-maintenance change to the air nozzle simultaneously.

Description

Side wall adherence air adding device of front and rear wall opposed firing boiler

Technical Field

The utility model relates to an offset combustion boiler technical field specifically is a front and back wall offset combustion boiler side wall adherence wind adds device.

Background

The opposed firing refers to that burners are oppositely arranged on two walls or on the same axis, fuel and air are respectively expanded after being sprayed into a hearth, and form a combustion mode of ascending flame after being impacted at the center.

Common front and back wall adds device to rushing to burn boiler side wall adherence wind on the existing market, the nozzle is generally fixed inside the boiler, it is inconvenient to take out the nozzle, when making the nozzle take place to block up, inconvenient mediation, be unfavorable for dismantling the work of postmaintenance change after the nozzle takes place to damage simultaneously, thereby lead to adherence wind to add the device can't effectually protect the opposite side wall, to the above-mentioned problem, carry out the innovative design on the basis that the device is added to rushing to burn boiler side wall adherence wind in original front and back wall.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a front and back wall offset combustion boiler side wall adherence wind adds device to solve common front and back wall offset combustion boiler side wall adherence wind adding device on the existing market that proposes in the above-mentioned background art, the nozzle is generally fixed inside the boiler, it is inconvenient to take out the nozzle, when making the nozzle take place to block up, inconvenient mediation, take place to be unfavorable for dismantling the work of back maintenance change after damaging when the nozzle simultaneously, thereby lead to adherence wind to add the unable effectual problem of protecting the side wall of device.

In order to achieve the above object, the utility model provides a following technical scheme: a device for adding adherent air to the side wall of a front-back wall hedging combustion boiler comprises a hedging combustion boiler body, a chimney, an air preheater and an air feeder, wherein a discharge flue is arranged at one end of the hedging combustion boiler body and communicated with the chimney, the air preheater is arranged at the middle end of the discharge flue, one end of the air preheater is respectively connected with a first air pipe and a second air pipe, the other end of the first air pipe is communicated with the air feeder, the second air pipe is communicated with a fixed pipe, the lower end of the fixed pipe is connected with a supporting block, the supporting block is fixedly arranged on the surface of the hedging combustion boiler body, one end of the fixed pipe is provided with a handle, one end of the handle extending into the fixed pipe is rotatably connected with a connecting pipe, a connecting air port is formed in the surface of one end of the connecting pipe, and a first limiting ring is arranged on the surface of, the other end of connecting pipe runs through logical groove, and leads to the groove and set up the inner wall in fixed pipe, the connecting pipe stretches out the outside one end surface mounting of fixed pipe and has the second spacing ring, and the connecting pipe stretches into the inside one end of offset combustion boiler body and is provided with the spring, the fixed surface of spring is connected with the stopper, and the surface mounting of stopper has the air nozzle to the one end of air nozzle stretches out the outside of connecting pipe.

Preferably, be threaded connection between handle and the fixed pipe, and the connecting pipe passes through handle and fixed pipe constitution sliding construction to the side of connecting pipe is regular hexagon structure.

Preferably, the first limiting ring and the second limiting ring are both made of elastic rubber materials, and the first limiting ring, the second limiting ring and the connecting pipe are of an integrated structure.

Preferably, the diameter of the first limiting ring is larger than that of the through groove, and the first limiting ring is mutually abutted to the inner wall of the fixed pipe.

Preferably, the diameter of the second limiting ring is smaller than that of the through groove, and the second limiting ring is mutually abutted to the outer wall of the opposed combustion boiler body.

Preferably, the stopper passes through the spring and constitutes extending structure with the connecting pipe, and the width of stopper is greater than the maximum diameter of air nozzle to the air nozzle is kept away from the one end both sides of stopper and is looked for the arc form.

Compared with the prior art, the beneficial effects of the utility model are that: the side wall adherence air adding device of the front and rear wall opposed firing boiler,

1. through stirring the handle, the handle is enabled to rotate and slide under the threaded connection with the fixed pipe, the handle drives the air nozzle to slide through the connecting pipe, and the air nozzle slides towards the inside of the connecting pipe after being extruded through the arc-shaped arrangement on the two sides of the air nozzle, so that the connecting pipe is convenient for driving the air nozzle to slide out of the opposed combustion boiler body, the work of dredging the air nozzle is facilitated, and the work of maintenance and replacement after the air nozzle is disassembled is facilitated;

2. through the setting that first spacing ring and second spacing ring are the elastic rubber material for the inner wall of first spacing ring and fixed pipe closely laminates, and makes the outer wall of second spacing ring and offset combustion boiler body closely laminate, has improved holistic leakproofness, and the diameter through the second spacing ring is less than the diameter that leads to the groove simultaneously, has guaranteed that the connecting rod can effectually take out work.

Drawings

FIG. 1 is a schematic view of the overall front cross-sectional structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the three-dimensional connection structure of the connection pipe and the second spacing ring of the present invention;

FIG. 4 is a schematic view of the connection structure between the fixing tube and the handle in a top view;

fig. 5 is an enlarged schematic view of the structure at B in fig. 4 according to the present invention.

In the figure: 1. a hedging combustion boiler body; 2. a chimney; 3. an air preheater; 4. a first gas delivery pipe; 5. a blower; 6. a second gas delivery pipe; 7. a fixed tube; 8. a support block; 9. a handle; 10. a connecting pipe; 11. an air connecting port; 12. a first limit ring; 13. a through groove; 14. a second stop collar; 15. a spring; 16. a limiting block; 17. an air nozzle; 18. and a discharge flue.

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. 1-5, the present invention provides a technical solution: a device for adding wall-adhering air to a side wall of a front-rear wall opposed firing boiler comprises an opposed firing boiler body 1, a chimney 2, an air preheater 3 and a blower 5, wherein one end of the opposed firing boiler body 1 is provided with a discharge flue 18, the discharge flue 18 is communicated with the chimney 2, the middle end of the discharge flue 18 is provided with the air preheater 3, one end of the air preheater 3 is respectively connected with a first gas pipe 4 and a second gas pipe 6, the other end of the first gas pipe 4 is communicated with the blower 5, the second gas pipe 6 is communicated with a fixed pipe 7, the lower end of the fixed pipe 7 is connected with a supporting block 8, the supporting block 8 is fixedly arranged on the surface of the opposed firing boiler body 1, one end of the fixed pipe 7 is provided with a handle 9, one end of the handle 9 extending into the fixed pipe 7 is rotatably connected with a connecting pipe 10, and the surface of one end of the connecting pipe, a first limiting ring 12 is arranged on the surface of one end, located inside the fixed pipe 7, of the connecting pipe 10, the other end of the connecting pipe 10 penetrates through the through groove 13, the through groove 13 is formed in the inner wall of the fixed pipe 7, a second limiting ring 14 is arranged on the surface of one end, extending out of the fixed pipe 7, of the connecting pipe 10, a spring 15 is arranged at one end, extending into the opposite combustion boiler body 1, of the connecting pipe 10, a limiting block 16 is fixedly connected to the surface of the spring 15, an air nozzle 17 is arranged on the surface of the limiting block 16, and one end of the air nozzle 17 extends out of the connecting pipe 10;

the handle 9 is in threaded connection with the fixed pipe 7, the connecting pipe 10 forms a sliding structure with the fixed pipe 7 through the handle 9, and the side of the connecting pipe 10 is regarded as a regular hexagon structure, so that the connecting pipe 10 is prevented from rotating, the handle 9 is favorable for driving the connecting pipe 10 to slide when rotating through threads, and the phenomenon that the connecting pipe 10 accidentally slides is avoided through the self-locking property of threaded connection;

the first limiting ring 12 and the second limiting ring 14 are both made of elastic rubber materials, and the first limiting ring 12, the second limiting ring 14 and the connecting pipe 10 are of an integrated structure, so that the whole sealing performance is improved;

the diameter of the first limiting ring 12 is larger than that of the through groove 13, and the first limiting ring 12 is abutted against the inner wall of the fixed pipe 7, so that the connecting pipe 10 is limited conveniently, and the through groove 13 is covered conveniently;

the diameter of the second limiting ring 14 is smaller than that of the through groove 13, and the second limiting ring 14 is abutted against the outer wall of the opposed combustion boiler body 1, so that the connecting groove between the connecting pipe 10 and the outer wall of the opposed combustion boiler body 1 is conveniently covered, and the second limiting ring 14 can conveniently slide through the through groove 13, so that the connecting pipe 10 can effectively slide out;

stopper 16 passes through spring 15 and constitutes extending structure with connecting pipe 10, and stopper 16's width is greater than air nozzle 17's maximum diameter, and air nozzle 17 keeps away from stopper 16's one end both sides and just sees for the arc form, it contracts deformation through stopper 16 extrusion spring 15 to have made things convenient for air nozzle 17 to receive after the extrusion, thereby be favorable to air nozzle 17 to take out the work of back maintenance change, simultaneously under the limiting displacement through stopper 16, when having avoided spring 15 to promote air nozzle 17, make air nozzle 17 and connecting pipe 10 take place the separation phenomenon.

The working principle is as follows: according to the figures 1-5, firstly, a worker installs the opposed combustion boiler body 1 at a proper position, then the air feeder 5 is started after being connected with an external power supply, the air feeder 5 conveys air to the inside of the air preheater 3 through the first air conveying pipe 4, the air preheater 3 heats the air through the waste heat of smoke in the smoke exhaust channel 18 and then conveys the air to the inside of the fixed pipe 7 through the second air conveying pipe 6, the air in the fixed pipe 7 flows to the inside of the connecting pipe 10 through the air connecting port 11 and is sprayed out through the air nozzle 17 to form an air wall and then protects the side wall, so that pulverized coal particles are prevented from directly scouring the side wall when the front wall and the rear wall of the opposed combustion boiler body 1 are scoured, when the air circulates in the fixed pipe 7, the first limiting ring 12 covers the through groove 13 through the arrangement of the elastic rubber material of the first limiting ring 12, and the sealing effect is improved, meanwhile, when air is sprayed out through the air nozzle 17, the second limiting ring 14 covers the joint of the connecting pipe 10 and the opposed combustion boiler body 1 through the arrangement of the elastic rubber material of the second limiting ring 14, and the overall sealing performance is further improved;

according to the figures 1-5, when the air nozzle 17 is blocked and needs to be dredged, or the air nozzle 17 is damaged and needs to be maintained and replaced, the worker can slide and rotate the handle 9 by stirring the handle 9, the regular hexagon structure is laterally viewed through the connecting pipe 10 at the moment, the connecting pipe 10 can not rotate, so that the fixed pipe 7 drives the connecting pipe 10 which is rotatably connected to slide, the connecting pipe 10 drives the air nozzle 17 to slide, the air nozzle 17 is extruded by the arc-shaped arrangement of the two sides of the air nozzle 17, when the air nozzle 17 is extruded in the sliding process, the spring 15 is extruded by the limiting block 16 to shrink and deform, thereby being beneficial to the connecting pipe 10 to drive the air nozzle 17 to slide out of the opposite-burning boiler body 1, the dredging work of the air nozzle 17 is convenient, and simultaneously, after the handle 9 is separated from the fixed pipe 7, the handle 9 is pulled continuously, so that the handle 9 drives the connecting pipe 10 to slide continuously, the diameter of the second limiting ring 14 is smaller than that of the through groove 13, the connecting pipe 10 can effectively drive the air nozzle 17 to slide out of the fixed pipe 7, thereby facilitating the maintenance and replacement of the air nozzle 17 and the connecting pipe 10, and when the maintenance of the air nozzle 17 and the connecting pipe 10 is completed, the connecting pipe 10 is inserted into the fixed pipe 7 again, and the handle 9 is reversely stirred, so that the handle 9 is connected with the fixed pipe 7 through the thread, the connecting pipe 10 is driven to be inserted into the opposed combustion boiler body 1 again, meanwhile, the connecting pipe 10 is prevented from sliding accidentally due to the self-locking property of the threaded connection between the handle 9 and the fixed pipe 7, the above is the operation of the whole device, and the details which are not described in detail in this specification are well known to those skilled in the art.

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

1. The utility model provides a front and back wall offset combustion boiler side wall adherence wind adds device, includes offset combustion boiler body (1), chimney (2), air heater (3) and forced draught blower (5), its characterized in that: one end of the hedging combustion boiler body (1) is provided with a discharge flue (18), the discharge flue (18) is communicated with a chimney (2), the middle end of the discharge flue (18) is provided with an air preheater (3), one end of the air preheater (3) is respectively connected with a first air pipe (4) and a second air pipe (6), the other end of the first air pipe (4) is communicated with an air feeder (5), the second air pipe (6) is communicated with a fixed pipe (7), the lower end of the fixed pipe (7) is connected with a supporting block (8), the supporting block (8) is fixedly arranged on the surface of the hedging combustion boiler body (1), one end of the fixed pipe (7) is provided with a handle (9), one end of the handle (9) extending into the fixed pipe (7) is rotatably connected with a connecting pipe (10), and the surface of one end of the connecting pipe (10) is provided with a gas connecting port (11), and connecting pipe (10) are located the inside one end surface mounting of fixed pipe (7) and have first spacing ring (12), the other end of connecting pipe (10) runs through logical groove (13), and lead to groove (13) and set up the inner wall in fixed pipe (7), the one end surface mounting that connecting pipe (10) stretched out fixed pipe (7) outside has second spacing ring (14), and connecting pipe (10) stretch into the inside one end of hedging combustion boiler body (1) and be provided with spring (15), the fixed surface of spring (15) is connected with stopper (16), and the surface mounting of stopper (16) has air nozzle (17) to the outside of connecting pipe (10) is stretched out to the one end of air nozzle (17).

2. The device for adding adherent wind to the side wall of the front-back wall opposed firing boiler according to claim 1, wherein: be threaded connection between handle (9) and fixed pipe (7), and connecting pipe (10) constitute sliding construction through handle (9) and fixed pipe (7) to the side view of connecting pipe (10) is regular hexagon structure.

3. The device for adding adherent wind to the side wall of the front-back wall opposed firing boiler according to claim 1, wherein: the first limiting ring (12) and the second limiting ring (14) are both made of elastic rubber materials, and the first limiting ring (12) and the second limiting ring (14) are integrated with the connecting pipe (10).

4. The device for adding adherent wind to the side wall of the front-back wall opposed firing boiler according to claim 1, wherein: the diameter of the first limiting ring (12) is larger than that of the through groove (13), and the first limiting ring (12) is abutted against the inner wall of the fixed pipe (7).

5. The device for adding adherent wind to the side wall of the front-back wall opposed firing boiler according to claim 1, wherein: the diameter of the second limiting ring (14) is smaller than that of the through groove (13), and the second limiting ring (14) is abutted against the outer wall of the opposed combustion boiler body (1).

6. The device for adding adherent wind to the side wall of the front-back wall opposed firing boiler according to claim 1, wherein: stopper (16) constitute extending structure through spring (15) and connecting pipe (10), and the width of stopper (16) is greater than the maximum diameter of air nozzle (17) to the one end both sides that stopper (16) were kept away from in air nozzle (17) are looked for the arc form.