CN213712273U

CN213712273U - High-temperature smoke exhaust pipeline compensation joint

Info

Publication number: CN213712273U
Application number: CN202022467958.5U
Authority: CN
Inventors: 王伟祺; 黄慧阳
Original assignee: Wuhan Qianye Engineering & Technology Co ltd
Current assignee: Wuhan Qianye Engineering & Technology Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-07-16
Anticipated expiration: 2030-10-30

Abstract

The utility model relates to a high temperature exhaust pipe butt joint technical field, in particular to high temperature exhaust pipe compensation festival. The utility model discloses a high temperature exhaust pipe compensation section includes the pipeline section of two tip mutual docks and seals the setting at pipeline section butt joint outlying seal structure, seal structure includes the sealed pipe fitting of two sealing rings and annular deformability, two the sealing ring overlaps respectively to establish and fixes two in the butt joint department periphery of pipeline section to be close to each other, sealed pipe fitting cover is located two the pipeline section butt joint department is outside to press from both sides to establish and be fixed in two between the sealing ring, form toroidal cavity between the periphery of sealed pipe fitting and two pipeline section butt joints, and fill in this toroidal cavity and have the heat preservation filler. The advantages are that: the structure design is reasonable, the high-temperature smoke exhaust pipe can be conveniently and rapidly installed, and the thermal expansion can be effectively absorbed.

Description

High-temperature smoke exhaust pipeline compensation joint

Technical Field

The utility model relates to a high temperature exhaust pipe butt joint technical field, in particular to high temperature exhaust pipe compensation festival.

Background

The smoke in the high-temperature smoke exhaust pipe reaches above the temperature, common steel materials can hardly bear the temperature, and the smoke exhaust pipe needs heat insulation measures.

At present, heat insulation and preservation are generally carried out by pouring high-temperature resistant castable in a steel pipe. Because the smoke exhaust pipeline is generally longer, the smoke exhaust pipeline is divided into a plurality of sections for pouring in order to facilitate the construction of high-temperature pouring materials, and then all the sections are butt-welded and assembled. The smoke exhaust pipe manufactured in the mode has the following problems:

1) the installation is difficult, and the pipeline is very heavy after pouring materials are poured inside the pipeline, so that the sections are difficult to align and weld when being butt-welded, and the installation is very troublesome.

2) The thermal expansion cannot be solved, even if the inside of the steel pipe is subjected to heat insulation measures, the temperature of the steel pipe is still higher, and the pipeline has larger thermal expansion. Because the expansion coefficients of the internal castable and the steel pipe are different, the castable can fall off when the thermal expansion amount is too large, and the steel pipe is directly contacted with high-temperature flue gas to cause damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a high temperature exhaust pipe compensation festival is provided, the effectual defect of overcoming prior art.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

the utility model provides a high temperature exhaust pipe compensation festival, the pipeline section that includes the mutual butt joint of two tip and sealed the setting at pipeline section butt joint outlying seal structure, above-mentioned seal structure includes two sealing rings and annular deformable's sealed pipe fitting, two above-mentioned sealing rings overlap respectively to establish and fix on the butt joint periphery of two above-mentioned pipeline sections, and be close to each other, two above-mentioned pipeline section butt joint outsides are located to above-mentioned sealed pipe fitting cover, and press from both sides to establish and be fixed in between two above-mentioned sealing rings, form annular cavity between the periphery of above-mentioned sealed pipe fitting and two pipeline section butt joints, and it has the heat preservation filler to fill.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, the sealing ring comprises a first ring and a second ring, the first ring is sleeved and fixed on the periphery of the butt joint end of the pipe section, the second ring is sleeved and fixed on the outer portion of the butt joint end of the pipe section and is attached and fixed to the inner side outer edge, close to the other sealing ring, of the corresponding first ring, and the sealing pipe fitting is clamped and fixed between the two second rings.

Further, the first ring and the second ring are both annular steel plate members and are welded to each other, and the first ring is welded to the outer periphery of the corresponding pipe section.

Further, the first ring and the second ring are both coaxially arranged rings, and the outer diameter of the first ring is larger than the inner diameter of the second ring and smaller than the outer diameter of the second ring.

Furthermore, the sealing pipe fitting is a metal corrugated pipe, and two sides of the sealing pipe fitting are respectively welded and fixed with one side, close to the two sealing rings, of the sealing pipe fitting.

Further, the heat-insulating filler is a ceramic fiber blanket.

The utility model has the advantages that: the structure design is reasonable, the high-temperature smoke exhaust pipe can be conveniently and rapidly installed, and the thermal expansion can be effectively absorbed.

Drawings

FIG. 1 is a schematic structural view of a high temperature exhaust pipe compensation joint of the present invention;

fig. 2 is a sectional view of the high temperature exhaust pipe compensation joint of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a pipe section; 2. a sealing structure; 21. a seal ring; 22. sealing the pipe fitting; 23. heat preservation filler; 211. a first ring; 212. a second ring.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Example (b): as shown in fig. 1 and 2, the high temperature exhaust smoke pipe compensation joint of the present embodiment includes two pipe sections 1 with end portions butted with each other and a sealing structure 2 hermetically disposed at the periphery of the butt joint of the pipe sections 1, where the sealing structure 2 includes two sealing rings 21 and an annular deformable sealing pipe 22, the two sealing rings 21 are respectively sleeved and fixed on the peripheries of the butt joint of the two pipe sections 1 and are close to each other, the sealing pipe 22 is sleeved and fixed outside the butt joint of the two pipe sections 1 and is sandwiched and fixed between the two sealing rings 21, an annular cavity is formed between the sealing pipe 22 and the peripheries of the butt joint of the two pipe sections 1, and the annular cavity is filled with a thermal insulation filler 23.

In this embodiment, seal structure 2 need not make the pipeline section 1 of two sections pipes of discharging fume strictly align and just can weld when the installation owing to adopt sealing ring 21, and secondly, the effect of the sealed pipe fitting 22 that can deform can absorb the steel pipe because of the thermal expansion volume that high temperature arouses, and in addition, heat preservation filler 23 prevents that high temperature flue gas direct contact sealed pipe fitting 22 and sealing ring 21, and whole technical scheme structural design is reasonable, the quick installation of the high temperature pipe of discharging fume of being convenient for very much to can effectively absorb the thermal energy.

In a preferred embodiment, the sealing ring 21 includes a first ring 211 and a second ring 212, the first ring 211 is fixed to an outer periphery of a butt end of the pipe segment 1, the second ring 212 is fixed to an outer periphery of the butt end of the pipe segment 1 and is attached to and fixed to an inner outer edge of the other sealing ring 21 corresponding to the first ring 211, and the sealing pipe 22 is interposed and fixed between the two second rings 212.

In this embodiment, the sealing ring 21 is fixed by two rings, one large and one small, which are dislocated from each other, and the sealing pipe 22 is installed between the large rings, so that the size of the sealing pipe 22 can be reduced, the cost can be reduced, and the heat insulating filler 23 can be well filled.

In a preferred embodiment, the first ring 211 and the second ring 212 are both annular steel plate members and are welded to each other, and the first ring 211 is welded and fixed to the outer periphery of the corresponding pipe segment 1.

In this embodiment, the first ring 211 and the second ring 212 are standard circular ring members, and are tightly connected with each other and are compactly connected with the pipe section 1, and when the pipe section is installed, the first ring 211 and the outer periphery of the pipe section 1 are welded for a circle, and the first ring 211 and the pipe section 1 are sealed and firmly fixed.

Preferably, the first ring 211 and the second ring 212 are both coaxially arranged circular rings, and the outer diameter of the first ring 211 is larger than the inner diameter of the second ring 212 and smaller than the outer diameter of the second ring 212, so that the two ring members are easy to process and regular in shape.

Preferably, the sealing pipe 22 is a metal bellows, and both sides thereof are welded and fixed to the sides of the two sealing rings 21 adjacent to each other.

In this embodiment, the sealing tube 22 is a metal bellows with mature technology, which has better expansion absorption and better performance.

Of course, other products having similar functions and functions may be used for the sealing tube 22.

Preferably, the heat-insulating filler 23 is a ceramic fiber blanket, and other seasonings having heat-insulating and heat-insulating effects can be selected.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a high temperature exhaust pipe compensation festival which characterized in that: including mutual pipeline section (1) and the sealed peripheral seal structure (2) of setting in pipeline section (1) butt joint of two tip, seal structure (2) include two sealing rings (21) and annular deformable's sealed pipe fitting (22), two sealing ring (21) overlap respectively to establish and fix two on the butt joint periphery of pipeline section (1) to be close to each other, two are located to sealed pipe fitting (22) cover pipeline section (1) butt joint outside, and press from both sides to establish and be fixed in two between sealing ring (21), form annular cavity between the periphery of sealed pipe fitting (22) and two pipeline sections (1) butt joint, and it has heat preservation filler (23) to fill in this annular cavity.

2. The high-temperature smoke exhaust pipeline compensation joint as claimed in claim 1, wherein: sealing ring (21) include first ring (211) and second ring (212), first ring (211) cover is established and is fixed in on the pipeline section (1) butt joint end periphery, second ring (212) cover is established outside pipeline section (1) butt joint end to the laminating is fixed in and is corresponded first ring (211) are close to another the inboard outward flange department of sealing ring (21), sealed pipe fitting (22) press from both sides and establish and are fixed in two between second ring (212).

3. The high-temperature smoke exhaust pipeline compensation joint as claimed in claim 2, wherein: the first ring (211) and the second ring (212) are both annular steel plate members and are welded with each other, and the first ring (211) and the periphery of the corresponding pipe section (1) are welded and fixed.

4. The high temperature exhaust pipe compensation joint of claim 3, wherein: the first ring (211) and the second ring (212) are coaxially arranged circular rings, and the outer diameter of the first ring (211) is larger than the inner diameter of the second ring (212) and smaller than the outer diameter of the second ring (212).

5. The high temperature exhaust pipe compensation joint of claim 3, wherein: the sealing pipe fitting (22) is a metal corrugated pipe, and two sides of the sealing pipe fitting are respectively welded and fixed with one side, close to the two sealing rings (21), of the sealing pipe fitting.

6. A high temperature exhaust pipe compensation joint according to any one of claims 1 to 4, characterized in that: the heat-insulating filler (23) is a ceramic fiber blanket.