CN215174944U

CN215174944U - Nozzle tube panel device of opposed burner of supercritical boiler

Info

Publication number: CN215174944U
Application number: CN202120710458.1U
Authority: CN
Inventors: 葛刚卫; 王晨
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2021-12-14
Anticipated expiration: 2031-04-08

Abstract

The utility model discloses a supercritical boiler is to dashing combustor spout tube panel device, including the mounting panel of fixed connection in combustor spout one end, the inner wall of combustor spout is pegged graft and is had telescopic connection pipe, but telescopic connection pipe and the equal fixedly connected with high temperature resistance refractory wall of inner wall of combustor spout, but the inside fixedly connected with high temperature resistance water-cooling pipeline of refractory wall. This supercritical boiler is to dashing combustor spout tube panel device, setting through telescopic connection pipe makes the device can adjust length, strengthens the length of combustor spout, makes its inside gas through the water-cooling pipeline of how long, has reduced furnace export flue gas temperature effectively, through the setting of detecting the mouth with the spot check piece, can make operating personnel take out the spot check piece, observes the deposition and the coke condition on spot check piece surface, in time knows the inside deposition and the coke condition of device.

Description

Nozzle tube panel device of opposed burner of supercritical boiler

Technical Field

The utility model relates to a combustor spout technical field specifically is a supercritical boiler offset combustor spout tube panel device.

Background

The existing supercritical unit is an introduction technology, the combustion mode is front-back wall hedging combustion, the cyclone pulverized coal burner applied to the supercritical front-back wall hedging combustion boiler is mostly suitable for better bituminous coal and sub-bituminous coal, the power coal in China is characterized by multiple coal types, poor coal quality, more and more supercritical boilers burn lean coal, inferior bituminous coal and lignite, and in order to adapt to the combustion of the coal types, the equal-grade supercritical boiler and the four-wall tangential circular direct-flow burner nozzle tube panel device which can adapt to the combustion of the lean coal, the inferior bituminous coal and the lignite are urgently needed.

Chinese patent publication No. CN202692011U four-wall tangential circular direct-current burner nozzle tube panel device of supercritical boiler, the existing supercritical unit is the introduction technology, its combustion mode is front and back wall hedging combustion, the cyclone pulverized coal burner that the supercritical front and back wall hedging combustion boiler applied is mostly applicable to better bituminous coal and sub-bituminous coal, its constitution of this product includes: the curvilinear figure pipe, the curvilinear figure pipe be a set of, and the slant is arranged, the curvilinear figure pipe with the curvilinear figure pipe between connect sealed four walls with band steel, round steel and steel sheet and cut circle direct current combustor spout tube panel, curvilinear figure union coupling flange board and comb plate, the utility model is used for adopt spiral tube circle water-cooling wall and four walls to cut the supercritical boiler of 350MW, the 600MW grade of circle direct current combustion mode.

However, the nozzle tube panel device is made of opaque materials, so that the situation that the user knows the dust deposition and the coke condition of the inner wall is not clear enough, the inner wall of the device is coked seriously after the device is used for a long time, and the sticky dust is attached to the inner wall when the device is touched, so that the using effect of the device is reduced, and the use is influenced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a to the not enough of prior art, the utility model provides a supercritical boiler is to dashing combustor spout tube panel device has solved the problem that proposes among the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a supercritical boiler offset burner nozzle tube panel device, includes the mounting panel of fixed connection in burner spout one end, the inner wall of burner spout is pegged graft and is had telescopic connection pipe, but the equal fixedly connected with refractory wall of high temperature resistance of inner wall of telescopic connection pipe and burner spout, but the inside fixedly connected with high temperature resistance water-cooling pipeline of refractory wall, the inside of burner spout is pegged graft and is had the clearance disc, the flexible pull rod of one side fixedly connected with of clearance disc, the detection mouth has been seted up to one side of telescopic connection pipe, the inside of detection mouth is pegged graft and is had the piece of spot check that is used for detecting the inside deposition of the device and the coke condition.

Optionally, a connecting ring is welded at one end of the telescopic connecting pipe, and a connecting bolt for connecting the device and the boiler is arranged on the surface of the connecting ring in a penetrating mode through threads.

Optionally, a groove is formed in one side of the mounting plate, and a sealing ring matched with the groove is arranged on the inner wall of the groove.

Optionally, the inner wall of the telescopic connecting pipe is provided with the telescopic pull rod in a penetrating manner, and one end of the telescopic pull rod penetrating into the telescopic connecting pipe is fixedly connected with an operating handle.

Optionally, one side fixedly connected with sealed cushion of piece is checked to the spot check, check piece fixed surface is connected with and is used for conveniently taking out the operation ring of piece of checking.

Optionally, the circumference cover of clearance disc is equipped with can dismantle the sponge circle, the mounting bolt hole has been seted up on the surface of mounting panel.

(III) advantageous effects

The utility model provides a supercritical boiler is to dashing combustor spout tube panel device possesses following beneficial effect:

1. this supercritical boiler is to dashing combustor spout tube panel device, setting through telescopic connection pipe, make the device can adjust length, strengthen the length of combustor spout, make its inside gas through the water-cooling pipeline of how long, furnace outlet flue gas temperature has been reduced effectively, setting through detecting the mouth and spot check piece, can make operating personnel take out the spot check piece, observe the deposition and the coke condition on spot check piece surface, in time know the inside deposition and the coke condition of the device, prevent effectively that the device from using the back for a long time, device result of use weakens.

2. This supercritical boiler is to dashing combustor spout tube panel device, when inside deposition and the too much influence the device use of coke, can directly take off the device, the rethread operation handle will clear up the disc and pass to the one end of telescopic connection pipe from the one end of combustor spout and pull out, make the deposition and the coke clearance of clearance disc with combustor spout and telescopic connection inside pipe wall come out, prevent to cause the serious and caking property of coking excessive ash, influence the use of device, shorten the life of device.

Drawings

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

FIG. 4 is an enlarged schematic view of the structure of FIG. 1 at C according to the present invention;

FIG. 5 is a schematic view of the structure of the water cooling pipeline of the present invention;

fig. 6 is a schematic structural diagram of the present invention.

In the figure: 1. a burner nozzle; 2. mounting a plate; 3. a telescopic connecting pipe; 4. a refractory wall; 5. a water-cooled pipeline; 6. cleaning the disc; 7. a telescopic pull rod; 8. a detection port; 9. checking blocks in a spot mode; 10. a connecting ring; 11. a connecting bolt; 12. a seal ring; 13. an operating handle; 14. an operating ring; 15. the sponge circle can be dismantled.

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.

Referring to fig. 1 to 6, the present invention provides a technical solution: a nozzle tube panel device of a counter-blow burner of a supercritical boiler comprises a mounting plate 2 fixedly connected to one end of a burner nozzle 1, one side of the mounting plate 2 is provided with a groove, the inner wall of the groove is provided with a sealing ring 12 matched with the inner wall of the groove to enhance the sealing effect of the device, air leakage at the joint of the device is prevented, a mounting bolt hole is formed in the surface of the mounting plate 2, the device is convenient to mount and replace through bolts, a telescopic connecting pipe 3 is inserted into the inner wall of the burner nozzle 1, a telescopic pull rod 7 penetrates through the inner wall of the telescopic connecting pipe 3, the device can be conveniently carried through the telescopic characteristic of the telescopic pull rod 7, a cleaning disc 6 is convenient to unfold, a connecting ring 10 is welded at one end of the telescopic connecting pipe 3, and a connecting bolt 11 used for connecting the device and the boiler is penetrated through surface threads of the connecting ring 10;

in order to enable the device to be applicable to a supercritical boiler with higher temperature, a refractory wall 4 which can resist high temperature is fixedly connected with the inner walls of the telescopic connecting pipe 3 and the burner nozzle 1, the refractory wall 4 is made of a high temperature resistant material, and a water cooling pipeline 5 which can resist high temperature is fixedly connected inside the refractory wall 4;

the cleaning disc 6 is inserted in the burner nozzle 1, the detachable sponge ring 15 is sleeved on the circumference of the cleaning disc 6, the detachable sponge ring 15 can be conveniently and independently taken down for cleaning, meanwhile, the detachable sponge ring 15 can be replaced to prolong the service life of the cleaning disc 6, meanwhile, the sponge material of the detachable sponge ring 15 is arranged, the cleaning disc 6 not only can clean the burner nozzle 1 with larger inner diameter, but also can directly enter the telescopic connecting pipe 3 with smaller inner diameter, thereby greatly facilitating cleaning personnel, one side of the cleaning disc 6 is fixedly connected with a telescopic pull rod 7, one end of the telescopic pull rod 7 penetrating into the telescopic connecting pipe 3 is fixedly connected with an operating handle 13, one side of the telescopic connecting pipe 3 is provided with a detection port 8, the detection port 8 is inserted with an investigation block 9 for detecting the dust and coke conditions in the device, one side of the investigation block 9 is fixedly connected with a sealing cushion, the detection port 8 is sealed, air leakage at the position is prevented, the use is prevented from being influenced, and the surface of the spot check block 9 is fixedly connected with an operation ring 14 for conveniently taking out the spot check block 9.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

The utility model discloses in, the device's working procedure as follows:

1. the device is arranged on a combustor through an installation plate 2, and one end of a telescopic connecting pipe on the device is connected to the supercritical boiler through a connecting bolt 11;

2. after the device is used for a period of time, the spot check block 9 in the detection port 8 can be taken out through the operation ring 14, the condition of dust and coke deposited at one end of the spot check block 9 is observed, and when the dust and the coke are not much, the device can be used for a period of time again and then is checked;

3. but when deposition and coke are too much, can wholly take off the device, expand flexible pull rod 7, fill in the inner wall of combustor spout with clearance disc 6, make operating personnel pull out clearance disc 6 from the telescopic connection pipe 3 of the other end through the operating handle 13 of flexible pull rod 7 one end, make clearance disc 6 in the in-process that removes in inside, scrape out the clearance with the deposition and the coke of inner wall, can realize the clearance of deposition and coke, can prolong the live time of the device.

The above, 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

1. The utility model provides a supercritical boiler is to dashing combustor spout tube panel device, includes mounting panel (2) of fixed connection in combustor spout (1) one end, its characterized in that: the inner wall of combustor spout (1) is pegged graft and is had telescopic connection pipe (3), but telescopic connection pipe (3) and the equal fixedly connected with refractory wall (4) of high temperature resistance of inner wall of combustor spout (1), but the inside fixedly connected with high temperature resistance water-cooling pipeline (5) of refractory wall (4), the inside of combustor spout (1) is pegged graft and is had clearance disc (6), the flexible pull rod (7) of one side fixedly connected with of clearance disc (6), detection mouth (8) have been seted up to one side of telescopic connection pipe (3), the inside of detecting mouth (8) is pegged graft and is had spot check piece (9) that are used for detecting the inside deposition of the device and the coke condition.

2. The opposed-flow burner nozzle tube panel device of the supercritical boiler according to claim 1, characterized in that: one end welding of flexible connecting pipe (3) has go-between (10), the surface screw thread of go-between (10) is worn to be equipped with and is used for connecting the device and boiler connecting bolt (11).

3. The opposed-flow burner nozzle tube panel device of the supercritical boiler according to claim 1, characterized in that: one side of the mounting plate (2) is provided with a groove, and the inner wall of the groove is provided with a sealing ring (12) which is matched with the groove.

4. The opposed-flow burner nozzle tube panel device of the supercritical boiler according to claim 1, characterized in that: the inner wall of the telescopic connecting pipe (3) is provided with the telescopic pull rod (7) in a penetrating manner, and the telescopic pull rod (7) penetrates into one end of the telescopic connecting pipe (3) and is fixedly connected with an operating handle (13).

5. The opposed-flow burner nozzle tube panel device of the supercritical boiler according to claim 1, characterized in that: one side fixedly connected with sealed cushion of spot check piece (9), spot check piece (9) fixed surface is connected with and is used for conveniently taking out operation ring (14) of spot check piece (9).

6. The opposed-flow burner nozzle tube panel device of the supercritical boiler according to claim 1, characterized in that: the circumference cover of clearance disc (6) is equipped with can dismantle sponge circle (15), the mounting bolt hole has been seted up on the surface of mounting panel (2).