CN217763503U

CN217763503U - Anticorrosive inside lining structure of chimney steel inner tube

Info

Publication number: CN217763503U
Application number: CN202221490605.XU
Authority: CN
Inventors: 陈亮; 刘慧瑾; 骆永刚; 史哲浩; 顾磊
Original assignee: Shanghai Shangdian Caojing Power Generation Co ltd
Current assignee: Shanghai Shangdian Caojing Power Generation Co ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2022-11-08
Anticipated expiration: 2032-06-15

Abstract

The utility model relates to an anticorrosive technical field of chimney specifically discloses an anticorrosive inside lining structure of chimney steel inner tube, including the steel inner tube, a plurality of inner caulking grooves have been seted up to the inside wall array of steel inner tube, the inside array of steel inner tube is provided with a plurality of anticorrosive backing plates, connecting groove's the outside is run through and is provided with the poling, the poling is located and is close to positioning groove has been seted up to one side in the steel inner tube centre of a circle, the steel inner tube with be connected with the gag lever post between the anticorrosive backing plate, it is provided with fixture block to accomodate telescopic outside, the gag lever post is located and keeps away from it is provided with the lead screw to accomodate telescopic one end. After the whole inboard that enters into anticorrosive backing plate of positioning fixture block, can make the positioning fixture block after reseing under the effect of spring, carry out the joint spacing with positioning channel section, guarantee the installation of anticorrosive backing plate, lead screw and nut setting are in the outside that is close to the steel inner tube, prevent that the corrosive substance in the flue gas from producing to dismantle well after corroding nut and lead screw.

Description

Anticorrosive lining structure of chimney steel inner tube

Technical Field

The utility model relates to an anticorrosive technical field of chimney specifically is an anticorrosive inside lining structure of chimney steel inner tube.

Background

Sulfuric acid condensate with strong corrosivity can be formed in a steel chimney of a power plant under the working condition of wet flue gas, and low-temperature high-humidity dilute acid corrosive liquid with high corrosion strength and strong permeability is easily formed by chloride or fluoride in the flue gas condensate; in addition, the desulfurized flue gas has low temperature, small upward draft and low flow velocity, and the flue gas is easy to gather, so that the inner wall of the chimney has partial positive pressure, and the permeation pressure of the flue gas to the inner wall of the chimney is increased, thereby accelerating the corrosion process.

However, at present, titanium metal plates are widely applied to corrosion prevention operation inside a steel inner cylinder of a chimney, and leakage can occur when traditional titanium metal plates are installed on the inner side of the chimney, so that leakage corrosion at gaps is easily caused.

SUMMERY OF THE UTILITY MODEL

To current problem, the utility model provides an anticorrosive lining structure of chimney steel inner tube, the device cooperation is used the problem that can put forward in the effectual solution background art.

In order to solve the problem, the utility model adopts the following technical scheme:

the utility model provides an anticorrosive lining structure of chimney steel inner tube, includes the steel inner tube, a plurality of interior caulking grooves have been seted up to the inside wall array of steel inner tube, the inside array of steel inner tube is provided with a plurality of anticorrosive backing plates, the both ends of anticorrosive backing plate all are provided with connecting slot, connecting slot's the outside is run through and is provided with the poling, the poling is located and is close to positioning slot has been seted up to one side in the steel inner tube centre of a circle, the steel inner tube with be connected with the gag lever post between the anticorrosive backing plate, the gag lever post is located and is close to positioning slot's one end is installed and is accomodate the sleeve, it is provided with the positioning fixture block to accomodate telescopic outside, the gag lever post is located and keeps away from it is provided with the lead screw to accomodate telescopic one end.

As the utility model discloses further scheme again: the outside of poling is located the inside of interior caulking groove is provided with the installation and links the hole, the nut has been cup jointed in the outside of lead screw, the nut with be provided with sealed the pad between the steel inner tube.

As the utility model discloses further scheme again: the inner side wall of the anti-corrosion base plate is provided with an anti-corrosion coating.

As a further aspect of the present invention: the through pipe is communicated with the anti-corrosion base plate, and a spring is arranged below the positioning clamping block and inside the containing sleeve.

As a further aspect of the present invention: the positioning clamping block is clamped with the positioning clamping groove.

As the utility model discloses further scheme again: the outer diameter of the anti-corrosion base plate is matched with the inner diameter of the steel inner cylinder, and the number of the embedded grooves corresponds to the number of the anti-corrosion base plates.

As the utility model discloses further scheme again: the screw cap is meshed with the screw rod.

As a further aspect of the present invention: the anticorrosive coating is a phenolic resin component.

Compared with the prior art, the beneficial effects of the utility model are that:

1. a plurality of anticorrosive backing plates carry out the spacing equipment of mutual joint through connecting the draw-in groove, realize laying and install the inboard at the steel inner tube, can guarantee the laminating that anticorrosive backing plate can be inseparable at the inside wall of steel inner tube.

2. The inside removal at the poling when the positioning fixture block is free, the whole inboard back that enters into anticorrosive backing plate of positioning fixture block can make the positioning fixture block after reseing under the effect of spring, and it is spacing to carry out the joint with positioning channel section, guarantees the installation of anticorrosive backing plate, and lead screw and nut setting can prevent after advancing the installation that corrosive substance in the flue gas can not dismantle well after producing the corruption to nut and lead screw in the outside near the steel inner tube.

Drawings

FIG. 1 is a schematic structural view of an anticorrosive lining structure of a steel inner cylinder of a chimney;

FIG. 2 is a schematic structural view of an anticorrosive liner plate in an anticorrosive lining structure of a steel inner cylinder of a chimney;

FIG. 3 is a schematic structural view of a limiting rod in an anti-corrosion lining structure of a chimney steel inner cylinder;

FIG. 4 is a top view of a steel inner cylinder in an anticorrosive lining structure of a chimney steel inner cylinder.

In the figure: 1. a steel inner cylinder; 2. an embedded groove is formed; 3. an anti-corrosion base plate; 4. mounting the connecting hole; 5. a limiting rod; 301. a connecting clamping groove; 302. pipe penetration; 303. positioning the clamping groove; 304. an anti-corrosion coating; 501. a storage sleeve; 502. positioning a fixture block; 503. a nut; 504. a screw rod; 505. and a gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 efforts all belong to the protection scope of the present invention.

As shown in fig. 1-4, the present embodiment provides an anticorrosion lining structure of a chimney steel inner cylinder, including a steel inner cylinder 1, an inner side wall array of the steel inner cylinder 1 is provided with a plurality of inner embedded grooves 2, an inner array of the steel inner cylinder 1 is provided with a plurality of anticorrosion base plates 3, an outer diameter dimension of the anticorrosion base plates 3 is matched with an inner diameter dimension of the steel inner cylinder 1, the number of the inner embedded grooves 2 corresponds to the number of the anticorrosion base plates 3, both ends of the anticorrosion base plates 3 are provided with connecting clamping grooves 301, a cylinder formed after the anticorrosion base plates 3 are assembled by the connecting clamping grooves 301 is clamped in the steel inner cylinder 1 for transmitting flue gas, the outer side of the connecting clamping grooves 301 is provided with a through pipe 302 in a penetrating manner, the through pipe 302 is provided with a positioning clamping groove 303 on one side close to a center of the steel inner cylinder 1, a limiting rod 5 is connected between the steel inner cylinder 1 and the anticorrosion base plates 3, the limiting rod 5 is provided with a receiving sleeve 501 at one end close to the positioning clamping groove 303, the outer side of the receiving sleeve 501 is provided with a positioning clamping groove 502, the positioning clamping groove 502 located below the positioning clamping groove 502 of the positioning sleeve 501, the positioning clamping groove 502 is provided with a spring when the positioning clamp 502 which is pressed on an inclined surface of the positioning sleeve 501, the positioning clamp 502 which is pressed on the inner side of the positioning sleeve 501, the positioning clamp 502, the positioning sleeve 501, the positioning clamp 502 which is pressed on the positioning sleeve 501, the installation of the anti-corrosion base plate 3 is ensured.

As shown in fig. 2-4, in this embodiment, the outer side of the penetrating pipe 302 is located inside the inner groove 2, and the installation connecting hole 4 is provided, the outer side of the screw rod 504 is sleeved with the nut 503, the nut 503 is engaged with the screw rod 504, the screw rod 504 is disposed at the outer side close to the steel inner cylinder 1, after installation, the nut 503 and the screw rod 504 can be prevented from being corroded by corrosive substances in flue gas, and cannot be well disassembled, the sealing gasket 505 is disposed between the nut 503 and the steel inner cylinder 1, the inner side wall of the anticorrosive backing plate 3 is provided with the anticorrosive coating 304, the anticorrosive coating 304 is a phenolic resin member, after the anticorrosive coating 304 is coated on the outer side of the anticorrosive backing plate 3, the flue gas can be reduced from passing through the gap left between the clamping grooves 301, and the penetrating pipe 302 and the anticorrosive backing plate 3 are disposed in a penetrating manner.

The utility model discloses a theory of operation is: when the anti-corrosion base plate is installed, the penetrating pipe 302 at the end part of the anti-corrosion base plate 3 penetrates through the embedded groove 2 in the inner side wall of the steel inner cylinder 1, the penetrating pipe 302 corresponds to the position of the installation connecting hole 4 in the outer side of the steel inner cylinder 1, one end of the limiting rod 5 with the containing sleeve 501 penetrates through the steel inner cylinder 1 and then penetrates through the penetrating pipe 302, the inner side wall of the penetrating pipe 302 can apply pressure to the positioning clamping block 502, the positioning clamping block 502 can be compressed into the containing sleeve 501, the positioning clamping block 502 can freely move in the penetrating pipe 302 when the positioning clamping block 502 moves, after the positioning clamping block 502 integrally enters the inner side of the anti-corrosion base plate 3, the positioning clamping block 502 can reset under the action of the spring and is clamped and limited by the positioning clamping groove 303, the nut 503 is meshed with the screw rod 504 to be connected, the anti-corrosion base plate 3 is guaranteed to be installed, after the anti-corrosion base plates 3 are subjected to limiting assembly through the connecting clamping grooves 301, the anti-corrosion coating 304 is coated on the inner side wall of the anti-corrosion base plate 3 after the assembly, the flue gas penetrates through the connecting groove 301, the gap between the connecting groove 301, and the connecting groove, the gap between the connecting groove 301 can be reduced, and the gap between the flue gas can be prevented from being corroded by corrosive substance 503 and the screw rod 504, and the screw rod.

It should be noted that, in this document, relational terms such as first and second, and the like are only used for distinguishing one entity or operation from another entity or operation, and do not necessarily require or imply any actual relation or order between the entities or operations, and furthermore, the terms "comprise", or any other variation thereof are intended to cover a non-exclusive inclusion, so that a process, a method, an article, or an apparatus including a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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 an anticorrosive inside lining structure of chimney steel inner tube, includes steel inner tube (1), its characterized in that, a plurality of interior caulking grooves (2) have been seted up to the inside wall array of steel inner tube (1), the inside array of steel inner tube (1) is provided with a plurality of anticorrosive backing plate (3), the both ends of anticorrosive backing plate (3) all are provided with connecting groove (301), the outside of connecting groove (301) is run through and is provided with poling (302), poling (302) are located and are close to positioning groove (303) have been seted up to one side in the centre of a circle of steel inner tube (1), steel inner tube (1) with be connected with gag lever post (5) between anticorrosive backing plate (3), gag lever post (5) are located and are close to positioning groove (303)'s one end is installed and is accomodate sleeve (501), the outside of accomodating sleeve (501) is provided with positioning block (502), gag lever post (5) are located and keep away from the one end of accomodating sleeve (501) is provided with lead screw (504).

2. The anticorrosion lining structure of the chimney steel inner cylinder is characterized in that an installation connecting hole (4) is formed in the inner portion of the embedded groove (2) on the outer side of the penetrating pipe (302), a nut (503) is sleeved on the outer side of the screw rod (504), and a sealing gasket (505) is arranged between the nut (503) and the steel inner cylinder (1).

3. The corrosion-resistant lining structure of the steel inner cylinder of the chimney according to claim 1, wherein the inner side wall of the corrosion-resistant backing plate (3) is provided with a corrosion-resistant coating (304).

4. The anti-corrosion lining structure of the chimney steel inner cylinder according to claim 1, wherein the through pipe (302) is communicated with the anti-corrosion liner plate (3), and a spring is mounted inside the containing sleeve (501) below the positioning fixture block (502).

5. The anti-corrosion lining structure of the chimney steel inner cylinder according to claim 1, wherein the positioning clamping block (502) is clamped with the positioning clamping groove (303).

6. The anti-corrosion lining structure of the steel inner cylinder of the chimney according to claim 1, wherein the outer diameter of the anti-corrosion base plate (3) is matched with the inner diameter of the steel inner cylinder (1), and the number of the inner embedding grooves (2) corresponds to the number of the anti-corrosion base plates (3).

7. The corrosion-resistant lining structure of the steel inner cylinder of the chimney is characterized in that the nut (503) is meshed with the screw rod (504).

8. The structure of claim 3, wherein the anticorrosion coating (304) is a phenolic resin material.