CN219103800U

CN219103800U - Blowing damage prevention structure for soot blowing heating surface of boiler

Info

Publication number: CN219103800U
Application number: CN202223401153.6U
Authority: CN
Inventors: 张守鑫
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-05-30
Anticipated expiration: 2032-12-19

Abstract

The utility model discloses a blowing damage prevention structure of a blowing heating surface of a boiler, which comprises a blowing heating surface of the boiler, wherein a soot blower telescopic hole is formed in the middle of one end surface of the blowing heating surface of the boiler, heat conducting pipes are arranged around the soot blower telescopic hole, the heat conducting pipes are vertically arranged, two adjacent heat conducting pipes are connected by adopting heat fins, the heating surface of the heat conducting pipes is provided with a blowing damage prevention part, the blowing damage prevention part is welded on the heating surface of the heat conducting pipes, and the installation direction of the blowing damage prevention part is parallel to the installation direction of the heat conducting pipes.

Description

Blowing damage prevention structure for soot blowing heating surface of boiler

Technical Field

The utility model relates to the technical field of maintenance of inner walls of boilers, in particular to a blowing damage prevention structure of a soot blowing heating surface of a boiler.

Background

The heating surfaces of the thermal power plant and the boiler are extremely easy to slag, the slag not only affects the efficiency of the boiler, but also threatens the safe operation of the boiler, the ash residue cleaning of the heating surfaces of the thermal power plant generally adopts steam to blow ash, the daily ash blowing system is frequently used, the ash blowing system is easy to leak inwards, the heating surfaces near the ash blowing device of the boiler are easy to blow down, and once the wall thickness of the pressure-bearing part is reduced to be lower than the minimum design thickness, the heating surface leakage event occurs;

according to the structure, the application number 2019,20931675.6 is increased in the boiler, and the blowing damage prevention component is matched with the heat conduction pipe and the heat conduction fins, so that the heat transfer and heat dissipation effect in the boiler is effectively improved, meanwhile, the blowing damage prevention component changes the flow direction of air flow, the heating surface can be more effectively protected, the thinning and stress reduction of the heating surface pipe wall near the soot blower due to long-time steam blowing are prevented, the service life of the heating surface of the boiler near the soot blower is greatly prolonged, and the safety and economical efficiency of the boiler are improved.

Although the application meets the use requirement of a user to a certain extent, certain defects still exist in the actual use process, and the specific problems are that the connection between the heat conduction pipe and the heat conduction pipe is inconvenient to fix the heat conduction pipe, so that the connection between the heat conduction pipe and the heat conduction pipe is unstable, and the separation between the heat conduction pipe and the heat conduction pipe is easy to occur.

Disclosure of Invention

The utility model provides a blowing damage prevention structure for a soot blowing heating surface of a boiler, which can effectively solve the problems that the connection between a heat conduction pipe and a heat conduction pipe is unstable and the separation between the heat conduction pipe and the heat conduction pipe is easy to occur because the connection between the heat conduction pipe and the heat conduction pipe is inconvenient to fix in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the blowing damage prevention structure comprises a boiler blowing damage prevention heating surface, wherein a soot blower telescopic hole is formed in the middle of one end face of the boiler blowing damage prevention heating surface, heat conducting pipes are arranged around the soot blower telescopic hole, the heat conducting pipes are vertically arranged, two adjacent heat conducting pipes are connected through heat receiving fins, a blowing damage prevention part is arranged on the heating surface of the heat conducting pipes, the blowing damage prevention part is welded on the heating surface of the heat conducting pipes, the installation direction of the blowing damage prevention part is parallel to the installation direction of the heat conducting pipes, and reinforcing support rods are arranged on the heat receiving fins;

the middle part of the back surface of the heated fin is fixedly provided with an extrusion fixing assembly, and the extrusion fixing assembly comprises a fixed block, a bidirectional threaded rod, a threaded sleeve and a moving piece;

the middle part of the back surface of the heated fin is provided with a fixed block, a bidirectional threaded rod is rotationally connected inside the fixed block, the outer surface of the bidirectional threaded rod is connected with a threaded sleeve through threads, and one end of the threaded sleeve is welded with a moving part;

the boiler soot blowing heating surface is provided with extrusion sealing mechanisms at the positions of the top end and the bottom end of the telescopic hole of the soot blower in front, and the extrusion sealing mechanisms comprise spring rods and high-temperature resistant sealing gaskets;

spring rods are arranged on the front surface of the soot blower heating surface of the boiler and positioned at the top end and the bottom end of the telescopic hole of the soot blower, and high-temperature-resistant sealing gaskets are fixedly arranged at the bottom ends of the spring rods.

The extrusion fixing assembly further comprises a positioning column and a positioning sleeve;

and a positioning column is welded at one side of the bottom end of the moving part, and a positioning sleeve is sleeved on the outer surface of the positioning column.

The extrusion sealing mechanism further comprises a limiting block and an arc-shaped rod;

the soot blowing heating surface of the boiler is fixedly connected with the spring rod through a limiting block, and the spring rod is connected with the high-temperature-resistant sealing gasket through an arc-shaped rod.

Compared with the prior art, the utility model has the beneficial effects that: the utility model has scientific and reasonable structure and safe and convenient use:

1. the heat-conducting tube is connected with the heat-receiving fins through the extrusion fixing assembly, so that the connection difficulty between the heat-receiving fins and the heat-conducting tubes is reduced, the connection between the heat-receiving fins and the heat-conducting tubes is more stable, and the problem of separation between the heat-receiving fins and the heat-conducting tubes is prevented.

2. Through extrusion sealing mechanism, can seal boiler soot blowing system and soot blower expansion hole junction, be convenient for fix between boiler soot blowing system and the soot blower expansion hole, reduced the fixed degree of difficulty between boiler soot blowing system and the soot blower expansion hole to can seal boiler soot blowing system and the soot blower expansion hole junction.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.

In the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic structural view of the blow-down preventing member of the present utility model;

FIG. 3 is a schematic view of the structure of the press-fit assembly of the present utility model;

FIG. 4 is a schematic diagram of the structure of the present utility model;

reference numerals in the drawings: 1. soot blower telescopic hole; 2. a heat conduction pipe; 3. a heated fin; 4. a blow-down preventing member; 5. reinforcing the support rod; 6. soot blowing heating surface of boiler;

7. extruding the fixing assembly; 701. a fixed block; 702. a two-way threaded rod; 703. a thread sleeve; 704. a moving member; 705. positioning columns; 706. a positioning sleeve;

8. extruding the sealing mechanism; 801. a limiting block; 802. a spring rod; 803. an arc-shaped rod; 804. high temperature resistant sealing gasket.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Examples: as shown in fig. 1-4, the utility model provides a technical scheme, and the blowing damage prevention structure of a boiler soot blowing heating surface comprises a boiler soot blowing heating surface 6, a soot blower telescopic hole 1 is formed in the middle of one end surface of the boiler soot blowing heating surface 6, heat conducting pipes 2 are arranged around the soot blower telescopic hole 1, the heat conducting pipes 2 are vertically arranged, two adjacent heat conducting pipes 2 are connected by adopting a heat receiving fin 3, a blowing damage prevention part 4 is arranged on the heating surface of the heat conducting pipe 2, the blowing damage prevention part 4 is welded on the heating surface of the heat conducting pipe 2, the installation direction of the blowing damage prevention part 4 is parallel to the installation direction of the heat conducting pipe 2, and a reinforcing support rod 5 is arranged on the heat receiving fin 3;

the middle part of the back surface of the heated fin 3 is fixedly provided with an extrusion fixing assembly 7, and the extrusion fixing assembly 7 comprises a fixing block 701, a bidirectional threaded rod 702, a threaded sleeve 703 and a moving piece 704;

a fixed block 701 is arranged in the middle of the back surface of the heated fin 3, a bidirectional threaded rod 702 is rotatably connected inside the fixed block 701, the outer surface of the bidirectional threaded rod 702 is connected with a threaded sleeve 703 through threads, and a moving part 704 is welded at one end of the threaded sleeve 703;

the front of the soot blowing heating surface 6 of the boiler is provided with extrusion sealing mechanisms 8 at the top end and the bottom end of the telescopic hole 1 of the soot blower, and the extrusion sealing mechanisms 8 comprise spring rods 802 and high-temperature resistant sealing gaskets 804;

the front of the boiler soot blowing heating surface 6 is provided with spring rods 802 at the top and bottom positions of the soot blower telescopic holes 1, and the bottom ends of the spring rods 802 are fixedly provided with high-temperature-resistant sealing gaskets 804.

The extrusion fixing assembly 7 further comprises a positioning column 705 and a positioning sleeve 706;

the locating column 705 has been welded to moving part 704 bottom one side, the locating column 705 surface has cup jointed locating sleeve 706, fixed connection between locating sleeve 706 one end and the fixed block 701, can be convenient for the fixed of locating sleeve 706, reduced the fixed degree of difficulty of locating sleeve 706, the shape of locating column 705 is the T type, and the locating sleeve 706 is inside to have seted up T type hole corresponding to locating column 705 surface position department, can be convenient for the removal of locating column 705, has reduced the removal degree of difficulty of locating column 705.

The extrusion sealing mechanism 8 further comprises a limiting block 801 and an arc-shaped rod 803;

the boiler soot blowing heating surface 6 is fixedly connected with the spring rod 802 through the limiting block 801, the spring rod 802 is connected with the high-temperature-resistant sealing pad 804 through the arc-shaped rod 803, the high-temperature-resistant sealing pad 804 is bonded with the arc-shaped rod 803 through instant adhesive, and the spring rod 802 is welded with the arc-shaped rod 803, so that the connection between the high-temperature-resistant sealing pad 804 and the arc-shaped rod 803 is more stable.

The working principle and the using flow of the utility model are as follows: in the practical use process, a user connects the heated fin 3 and the heat conduction pipe 2, and at the moment, the bidirectional threaded rod 702 is rotated, the bidirectional threaded rod 702 drives the threaded sleeve 703 to rotate when rotating, and because one end of the threaded sleeve 703 is welded with the moving piece 704, the threaded sleeve 703 can only move, the moving piece 704 is driven to move when the threaded sleeve 703 moves, the positioning column 705 is driven to move along the inside of the positioning sleeve 706 when the moving piece 704 moves, the moving piece 704 enters into one side of the outer surface of the heat conduction pipe 2, connection between the heated fin 3 and the heat conduction pipe 2 can be facilitated, connection difficulty between the heated fin 3 and the heat conduction pipe 2 is reduced, connection between the heated fin 3 and the heat conduction pipe 2 is more stable, and separation between the heated fin 3 and the heat conduction pipe 2 is prevented.

When the boiler soot blowing system stretches into the hearth from the soot blower telescopic hole 1 to start soot blowing, tension at the moment drives the arc rod 803 to move, the arc rod 803 drives the high-temperature-resistant sealing gasket 804 to extrude with the boiler soot blowing system from the joint of the soot blower telescopic hole 1, and seals the joint of the boiler soot blowing system and the soot blower telescopic hole 1, so that the fixing difficulty between the boiler soot blowing system and the soot blower telescopic hole 1 is reduced, the joint of the boiler soot blowing system and the soot blower telescopic hole 1 can be sealed, the heat conduction pipe 2 and the heat conduction fin 3 protruding towards the soot blower side are subjected to steam blowing, the anti-blowing part 4 is arranged on the heat conduction pipe 2 in cooperation with the heat conduction surface, the heat conduction pipe 2 and the inner wall of the boiler can be effectively protected, when the steam blowing flows to the anti-blowing part 4, the air flow can be split to two sides along with the anti-blowing part 4, the fact that the steam blown by the soot blower directly acts on the inner wall of the boiler can be effectively avoided, and the inner wall of the boiler is prevented from being blown by the steam blowing part.

Finally, it should be noted that: the foregoing is merely a preferred example of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a boiler soot blowing heated surface prevents blowing damage structure, includes boiler soot blowing heated surface (6), soot blower telescopic hole (1) have been seted up at boiler soot blowing heated surface (6) one end face middle part, soot blower telescopic hole (1) are equipped with heat pipe (2) all around, heat pipe (2) adopt vertical arrangement to arrange, adjacent two adopt between heat pipe (2) to be connected by heating fin (3) the heated surface of heat pipe (2) is provided with prevents blowing damage part (4), prevent blowing damage part (4) welding the heated surface at heat pipe (2), prevent blowing damage part (4) installation direction and heat pipe (2) installation direction parallel, be equipped with the reinforcing support pole on the heat fin, its characterized in that:

an extrusion fixing assembly (7) is fixedly arranged in the middle of the back of the heated fin (3), and the extrusion fixing assembly (7) comprises a fixed block (701), a bidirectional threaded rod (702), a threaded sleeve (703) and a moving piece (704);

a fixed block (701) is arranged in the middle of the back of the heated fin (3), a bidirectional threaded rod (702) is rotatably connected in the fixed block (701), a thread sleeve (703) is connected to the outer surface of the bidirectional threaded rod (702) through threads, and a moving part (704) is welded at one end of the thread sleeve (703);

the boiler soot blowing heating surface (6) is provided with extrusion sealing mechanisms (8) at the positions of the top end and the bottom end of a soot blower telescopic hole (1) on the front surface, and the extrusion sealing mechanisms (8) comprise spring rods (802) and high-temperature-resistant sealing gaskets (804);

the boiler soot blowing heating surface (6) is provided with spring rods (802) at the positions of the top end and the bottom end of the soot blower telescopic hole (1) in the front, and high-temperature-resistant sealing gaskets (804) are fixedly arranged at the bottom ends of the spring rods (802).

2. The blowing damage prevention structure for the soot blowing heating surface of the boiler according to claim 1, wherein the extrusion fixing assembly (7) further comprises a positioning column (705) and a positioning sleeve (706);

a positioning column (705) is welded on one side of the bottom end of the moving part (704), and a positioning sleeve (706) is sleeved on the outer surface of the positioning column (705).

3. The blowing damage prevention structure for the soot blowing heating surface of the boiler according to claim 2, wherein one end of the positioning sleeve (706) is fixedly connected with the fixing block (701).

4. The blowing damage prevention structure for the soot blowing heating surface of the boiler according to claim 2, wherein the positioning column (705) is of a T shape, and a T-shaped hole is formed in the positioning sleeve (706) at a position corresponding to the outer surface of the positioning column (705).

5. The blowing damage prevention structure for the soot blowing heating surface of the boiler according to claim 1, wherein the extrusion sealing mechanism (8) further comprises a limiting block (801) and an arc-shaped rod (803);

the boiler soot blowing heating surface (6) is fixedly connected with the spring rod (802) through a limiting block (801), and the spring rod (802) is connected with the high-temperature-resistant sealing gasket (804) through an arc-shaped rod (803).

6. The blowing damage prevention structure for the soot blowing heating surface of the boiler according to claim 5, wherein the high-temperature resistant sealing pad (804) is in instant adhesive bonding connection with the arc-shaped rod (803), and the spring rod (802) is in welding connection with the arc-shaped rod (803).