CN216011788U

CN216011788U - Smoke hood down pipe header structure for converter

Info

Publication number: CN216011788U
Application number: CN202121855285.9U
Authority: CN
Inventors: 苏俊兵; 肖建平; 徐军; 胡锦阳
Original assignee: Yangchun New Iron and Steel Co Ltd
Current assignee: Yangchun New Iron and Steel Co Ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-03-11
Anticipated expiration: 2031-08-09

Abstract

The utility model provides a hood down pipe header structure for a converter, which relates to the field of special mechanical equipment for converter steelmaking, wherein a first distribution header comprises a first main tee joint, a first connecting tee joint and first header pipes, twelve first connecting tee joints, thirteen first header pipes and the first main tee joint are roasted to form an integrated water ring-shaped first distribution header, a second distribution header comprises a second main tee joint, a second connecting tee joint and a second header pipe, and twelve second connecting tee joints, thirteen second header pipes and a second main tee joint are roasted to form an integrated water ring-shaped second distribution header; the reducing pipe and the elbow in original structure have been cancelled to the annular first distribution header of water and the annular second distribution header of water, have effectively reduced the water supply resistance, have increased the smooth and easy degree of rivers, and supply water and spread all over whole first distribution header and second distribution header, avoid appearing the water supply blind area, and the integral type structure has still been avoided leading to the uneven problem of supplying water because of this internal uneven being heated of petticoat pipe.

Description

Smoke hood down pipe header structure for converter

Technical Field

The utility model relates to the field of special mechanical equipment for converter steelmaking, in particular to a smoke hood down pipe header structure for a converter.

Background

The waste heat boiler is mainly used for cooling flue gas generated in the smelting process of the converter and collecting dust, and meanwhile, the waste heat utilization is realized by utilizing high-temperature flue gas, and whether the water supply of the smoke hood is smooth directly influences the service life of the smoke hood and the efficiency of saturated steam output;

in the prior art, inlet water of a waste heat boiler smoke hood enters from a steam drum distribution through a down pipe, two layers of distribution headers are arranged between the down pipe and a smoke hood close-packed pipe, the first layer of distribution header (header pipe) is respectively connected with the close-packed pipe forming the smoke hood, the other layer of distribution header (inlet water header) is connected with the down pipe through a reducer and an elbow, and the two layers of headers are connected by six distribution branch pipes; in the mode, the tail part of the water inlet header is of a disconnected and unconnected structure, a water supply blind area is led out, the front parts of the six branch pipes are reduced by reducing pipes with large and small heads, so that water quantity is unevenly distributed, the water supply strength and the cooling effect of the smoke hood are influenced, and after the smoke hood is used for a long time, the local part of the smoke hood is degraded and cracked, so that accidents such as water leakage, furnace shutdown and rush repair are caused; when the smoke hood leaks water, the water quantity unevenness is aggravated, and a large amount of water leaks from a low-pressure part to cause the uneven water supply pressure; therefore, the utility model provides a hood downcomer header structure for a converter, which aims to overcome the defects in the prior art.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, an object of the present invention is to provide a hood down pipe header structure for a converter, in which a reducer pipe and an elbow in an original structure are eliminated from a first water ring-shaped distribution header and a second water ring-shaped distribution header, so that water supply resistance is effectively reduced, smoothness of water flow is increased, water supply is distributed throughout the first water ring-shaped distribution header and the second water ring-shaped distribution header, a water supply blind area is avoided, and the problem of uneven water supply caused by uneven heating inside a hood body is avoided due to an integrated structure.

In order to achieve the purpose, the utility model provides the following technical scheme:

a hood down pipe header structure for a converter comprises a first distribution header and a second distribution header, wherein the first distribution header comprises a first main tee joint, a first connecting tee joint and first header pipes, the first connecting tee joint is twelve, the first header pipes are thirteen, twelve first connecting tee joints, thirteen first header pipes and the first main tee joint are roasted to form an integrated water ring-shaped first distribution header;

the second distribution header comprises a second main tee joint, a second connecting tee joint and twelve second header pipes, the number of the second connecting tee joints is twelve, the number of the second header pipes is thirteen, and the twelve second connecting tee joints, the thirteen second header pipes and the second main tee joints are roasted to form an integrated water ring-shaped second distribution header;

and a branch pipe is arranged between a first joint of a first connecting tee joint on the first distribution header and a first joint of a second connecting tee joint on the second distribution header.

The further improvement lies in that: the first connector of the first main tee is connected with the downtake, the first connector of the second main tee is connected with the dense exhaust pipe of the smoke hood, and the smoke hood body is connected with one end of the dense exhaust pipe of the smoke hood.

The further improvement lies in that: and sealing flange assemblies are arranged on the first joint of the first main tee joint and the first joint of the second main tee joint.

The further improvement lies in that: the sealing flange component comprises a first sealing flange plate, a second sealing flange plate, a sealing gasket and connecting bolts, wherein the first sealing flange plate is arranged on a first joint of a first main tee joint and a first joint of a second main tee joint respectively, the second sealing flange plate is arranged on a descending pipe and a smoke hood dense-arrangement pipe respectively, the sealing gasket is arranged between the first sealing flange plate and the second sealing flange plate, and the first sealing flange plate and the second sealing flange plate are fixed through the connecting bolts.

The further improvement lies in that: the diameter of the first distribution header is greater than the diameter of the second distribution header, and the branch pipe diameter is half the diameter of the first distribution header.

The further improvement lies in that: the reinforced sleeve is arranged on the outer side of the branch pipe, heat insulation materials are filled in the reinforced sleeve, and the reinforced sleeve is connected with the branch pipe through a hoop.

The further improvement lies in that: and support frames are arranged between the first distribution header and the second distribution header.

The utility model has the beneficial effects that: the integral water ring-shaped first distribution header is formed by roasting twelve first connecting tee joints, thirteen first header pipes and first main tee joints, and the integral water ring-shaped second distribution header is formed by roasting twelve second connecting tee joints, thirteen second header pipes and second main tee joints, the reducer pipes and elbows in the original structure are eliminated by the water ring-shaped first distribution header and the water ring-shaped second distribution header, so that the water supply resistance is effectively reduced, the smoothness of water flow is increased, the water supply is distributed throughout the integral first distribution header and the integral second header, a water supply blind area is avoided, and the integral structure also avoids the problem of uneven water supply caused by uneven heating in the smoke hood body;

add to twelve branch pipes through six branch pipes with root in original structure, many branch pipes supply water simultaneously, guaranteed that every branch pipe water supply scope is reduced, can effectively prevent that certain petticoat pipe dense row from leaking and other petticoat pipe dense row pipes from getting the condition of cooling water supply, the whole life-span that has promoted the petticoat pipe body, promote cooling efficiency, the output efficiency who has improved saturated steam, be favorable to the utilization of exhaust-heat steam electricity generation, stabilize the circulating pressure in the entire system.

Drawings

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

FIG. 2 is a schematic top view of a first distribution header configuration of the present invention;

FIG. 3 is a schematic top view of a second distribution header configuration of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 1 according to the present invention.

Wherein: 1. a first distribution header; 2. a second distribution header; 3. a first main tee; 4. the first connecting tee joint; 5. a first header pipe; 6. a second main tee; 7. a second connecting tee; 8. a second header pipe; 9. a branch pipe; 10. a down pipe; 11. the smoke hood is closely arranged with pipes; 12. a smoke hood body; 13. a sealing flange assembly; 14. a first sealing flange; 15. a second sealing flange; 16. reinforcing the sleeve; 17. a support frame.

Detailed Description

In order to further understand the present invention, the following detailed description will be made with reference to the following examples, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

According to fig. 1-4, the present embodiment proposes a hood down pipe header structure for a converter, comprising a first distribution header 1 and a second distribution header 2, the first distribution header 1 comprising a first main tee 3, a first connecting tee 4 and a first header pipe 5, the first connecting tee 4 being twelve, the first header pipe 5 being thirteen, twelve of the first connecting tee 4 and thirteen of the first header pipe 5 and the first main tee 3 being roasted to form an integrated water ring-shaped first distribution header 1;

the second distribution header 2 comprises a second main tee 6, a second connecting tee 7 and second header pipes 8, twelve of the second connecting tees 7, thirteen of the second header pipes 8, twelve of the second connecting tees 7 and thirteen of the second header pipes 8 and the second main tee 6 are roasted to form an integral water ring-shaped second distribution header 2;

a branch pipe 9 is arranged between the first joint of the first connecting tee 4 on the first distribution header 1 and the first joint of the second connecting tee 7 on the second distribution header 2.

The first joint of first main tee bend 3 is connected with downtake 10, the first joint of second main tee bend 6 is connected with petticoat pipe close-packed tube 11, petticoat pipe body 12 is connected to petticoat pipe close-packed tube 11 one end.

And sealing flange assemblies 13 are arranged on the first joint of the first main tee 3 and the first joint of the second main tee 6.

The sealing flange subassembly 13 includes first sealing flange dish 14, second sealing flange dish 15, sealed pad and connecting bolt, first sealing flange dish 14 sets up respectively on the first joint of first main tee bend 3 and the first joint of second main tee bend 6, second sealing flange dish 15 sets up respectively on descending pipe 10 and petticoat pipe close-packed pipe 11, be equipped with sealed the pad between first sealing flange dish 14 and the second sealing flange dish 15, and first sealing flange dish 14 and second sealing flange dish 15 pass through connecting bolt fixed, and sealing flange subassembly 13 can improve the leakproofness of being connected between first main tee bend 3 and second main tee bend 6 and descending pipe 10 and the petticoat pipe close-packed pipe 11.

The diameter of the first distribution header 1 is greater than the diameter of the second distribution header 2 and the branch pipes 9 have a diameter which is half the diameter of the first distribution header 1.

The outer side of the branch pipe 9 is provided with a reinforcing sleeve 16, the reinforcing sleeve 16 is filled with heat insulation materials, the reinforcing sleeve 16 is connected with the branch pipe 9 through a hoop, and the use strength of the branch pipe 9 can be improved through the reinforcing sleeve 16.

The supporting frames 17 are respectively arranged between the first distribution header 1 and the second distribution header 2, and the supporting frames 17 can improve the structural stability of the first distribution header 1 and the second distribution header 2.

Twelve first connecting tee joints 4, thirteen first header pipes 5 and first main tee joints 3 are roasted to form an integrated water annular first distribution header 1, twelve second connecting tee joints 7, thirteen second header pipes 8 and second main tee joints 6 are roasted to form an integrated water annular second distribution header 2, reducer pipes and elbows in the original structure are omitted from the water annular first distribution header 1 and the water annular second distribution header 2, water supply resistance is effectively reduced, smoothness of water flow is increased, water supply is distributed over the integrated first distribution header 1 and the integrated second distribution header 2, a water supply blind area is avoided, and the integrated structure also avoids the problem of uneven water supply caused by uneven heating in a smoke hood body 12;

add to twelve branch pipes 9 through six branch pipes 9 with in the original structure, many branch pipes 9 supply water simultaneously, it is reduced to have ensured every branch pipe 9 water supply scope, can prevent effectively that certain petticoat pipe dense row pipe 11 from leaking and other petticoat pipe dense row pipes 11 from obtaining the condition of cooling water supply, the whole life-span that has promoted petticoat pipe body 12, promote cooling efficiency, the output efficiency of saturated steam has been improved, be favorable to the utilization of waste heat steam power generation, stabilize the circulating pressure in the entire system.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A petticoat pipe downcomer header structure that converter was used, includes first distribution header (1) and second distribution header (2), its characterized in that: the first distribution header (1) comprises a first main tee joint (3), a first connecting tee joint (4) and first header pipes (5), twelve first connecting tee joints (4) are arranged, thirteen first header pipes (5) are arranged, twelve first connecting tee joints (4), thirteen first header pipes (5) and the first main tee joint (3) are roasted to form the integrated water ring-shaped first distribution header (1);

the second distribution header (2) comprises a second main tee joint (6), a second connecting tee joint (7) and second header pipes (8), twelve second connecting tee joints (7) are arranged, thirteen second header pipes (8) are arranged, twelve second connecting tee joints (7) and thirteen second header pipes (8) and the second main tee joint (6) are roasted to form the integrated water ring-shaped second distribution header (2);

and a branch pipe (9) is arranged between a first joint of a first connecting tee joint (4) on the first distribution header (1) and a first joint of a second connecting tee joint (7) on the second distribution header (2).

2. A hood downcomer header structure for a converter according to claim 1 wherein: the first joint and the downtake (10) of first main tee bend (3) are connected, the first joint and the petticoat pipe close-packed pipe (11) of second main tee bend (6) are connected, petticoat pipe body (12) are connected to petticoat pipe close-packed pipe (11) one end.

3. A hood downcomer header structure for a converter according to claim 2 wherein: and sealing flange assemblies (13) are arranged on the first joint of the first main tee joint (3) and the first joint of the second main tee joint (6).

4. A hood downcomer header structure for a converter according to claim 3 wherein: sealing flange subassembly (13) are including first sealing flange dish (14), second sealing flange dish (15), sealed pad and connecting bolt, first sealing flange dish (14) set up respectively on the first joint of first main tee bend (3) and the first joint of second main tee bend (6), second sealing flange dish (15) set up respectively on pipe (10) and the dense row of pipe of petticoat pipe (11) fall, be equipped with sealed the pad between first sealing flange dish (14) and the second sealing flange dish (15), and first sealing flange dish (14) and second sealing flange dish (15) are fixed through connecting bolt.

5. A hood downcomer header structure for a converter according to claim 1 wherein: the diameter of the first distribution header (1) is greater than the diameter of the second distribution header (2), and the diameter of the branch pipe (9) is half of the diameter of the first distribution header (1).

6. A hood downcomer header structure for a converter according to claim 1 wherein: the reinforced plastic pipe is characterized in that reinforced sleeves (16) are arranged on the outer sides of the branch pipes (9), heat insulation materials are filled in the reinforced sleeves (16), and the reinforced sleeves (16) are connected with the branch pipes (9) through anchor ears.

7. A hood downcomer header structure for a converter according to claim 1 wherein: and a support frame (17) is arranged between the first distribution header (1) and the second distribution header (2).