CN210510708U

CN210510708U - Waterproof and dustproof corrugated pipe compensator

Info

Publication number: CN210510708U
Application number: CN201921125573.1U
Authority: CN
Inventors: 王鹏; 王晓兵; 丁玉红
Original assignee: Jiangsu Baoheng Pipe Fittings Co ltd
Current assignee: Jiangsu Baoheng Pipe Fittings Co ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-05-12
Anticipated expiration: 2029-07-18

Abstract

The utility model discloses a waterproof dustproof corrugated pipe compensator relates to corrugated pipe compensator technical field. The utility model comprises a corrugated pipe compensator body, wherein the corrugated pipe compensator body comprises a connecting pipe; the middle part of the connecting pipe is provided with a corrugated pipe, and the peripheral side surface of the connecting pipe is fixedly connected with two pipe plates; a pull rod is fixedly connected between the opposite surfaces of the two tube plates, and the inner wall of the connecting tube is fixedly connected with a guide cylinder; one end of the guide cylinder is communicated with an anti-backflow cylinder; the peripheral side surface of the guide cylinder is fixedly connected with a first ceramic fiber felt; the circumferential side surface of the guide cylinder is fixedly connected with a rubber backing ring; the circumferential side surface of the rubber pad is fixedly connected with two connecting rings which are connected with each other. The utility model discloses an use the heat resistance high and have elastic first ceramic fiber felt and second ceramic fiber felt, on the basis that does not influence compensator elastic expansion, can seal the free end of draft tube to multiple protection can effectively prevent backward flow such as smoke and dust water smoke through sealing and multiple protection.

Description

Waterproof and dustproof corrugated pipe compensator

Technical Field

The utility model belongs to the technical field of the bellows compensator, especially, relate to a waterproof dustproof bellows compensator.

Background

The compensator is also called an expansion joint, is an elastic compensation device and is mainly used for compensating thermal expansion and cold dimensional displacement of a pipeline or equipment caused by temperature influence; the compensation element of the expansion joint is a corrugated pipe, and the corrugated pipe always needs to bear certain working pressure except for displacement in the operation process, so that the expansion joint is also a pressure-bearing elastic compensation device, and therefore, the expansion joint is very important for ensuring safe and reliable work; expansion joints are also commonly used for vibration isolation and noise reduction, in addition to their use as thermal displacement compensation devices.

The compensator is mostly used in catalytic large flue, inclined pipe and other places; in order to solve the problems, various solutions are proposed in the market at present, for example, a waterproof and dustproof corrugated pipe compensator is disclosed in a patent document with the publication number of CN201020521306.9, an abrasion-proof expansion joint with a flexible dustproof structure is disclosed in a patent document with the publication number of CN201410724481.0, a high-efficiency heat-preservation metal expansion joint is disclosed in a patent document with the publication number of CN201721649919.9, however, the technical solutions disclosed in the above patent documents still have some defects, such as poor expansion and contraction performance or poor high temperature and elastic resistance of the expansion joint.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a waterproof dustproof bellows compensator through waterproof dustproof bellows compensator, has solved current bellows compensator and has not had the backflow prevention measure and then lead to the problem of corruption easily.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a waterproof and dustproof corrugated pipe compensator, which comprises a corrugated pipe compensator body, wherein the corrugated pipe compensator body comprises a connecting pipe; the middle part of the connecting pipe is provided with a corrugated pipe, and the peripheral side surface of the connecting pipe is fixedly connected with two pipe plates; a pull rod is fixedly connected between the opposite surfaces of the two tube plates, and the inner wall of the connecting tube is fixedly connected with a guide cylinder;

one end of the guide cylinder is communicated with an anti-backflow cylinder; the peripheral side surface of the guide cylinder is fixedly connected with a first ceramic fiber felt; the circumferential side surface of the guide cylinder is fixedly connected with a rubber backing ring; the circumferential side surface of the rubber pad is fixedly connected with two connecting rings which are connected with each other; a first rotating shaft is rotatably connected between the inner surfaces of the two connecting rings; two limiting grooves are formed in one surface of the backflow prevention cylinder; a second rotating shaft is rotatably connected between the inner surfaces of the two limiting grooves; and the circumferential side surfaces of the first rotating shaft and the second rotating shaft are sleeved with second ceramic fiber felts.

Furthermore, the two connecting rings and the two limiting grooves are symmetrically distributed by taking the plane where the axis of the guide shell is located as an axis.

Furthermore, the included angle between the inclined edge of the backflow prevention cylinder and the axis of the guide cylinder is 145 degrees; the rubber backing ring is positioned between the first ceramic fiber felt and the backflow prevention cylinder.

Furthermore, the inner walls of the connecting pipe, the guide cylinder and the anti-backflow cylinder are coated with corrosion-resistant paint.

The utility model discloses following beneficial effect has:

the utility model discloses an use the heat resistance high and have elastic first ceramic fiber felt and second ceramic fiber felt, on the basis that does not influence compensator elastic expansion, can seal the free end of draft tube to multiple protection can effectively prevent backward flow such as smoke and dust water smoke through sealing and multiple protection, and then solve traditional draft tube and expose the problem that the formula structure caused the corruption easily.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a waterproof and dustproof bellows compensator;

FIG. 2 is a schematic view of a portion A of FIG. 1;

FIG. 3 is a schematic structural view of the connection ring and the first rotary shaft;

FIG. 4 is a schematic structural view of a guide shell and a limiting groove;

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

1-a corrugated pipe compensator body, 101-a connecting pipe, 102-a corrugated pipe, 103-a pipe plate, 104-a pull rod, 105-a guide cylinder, 106-an anti-backflow cylinder, 107-a first ceramic fiber felt, 108-a rubber backing ring, 109-a connecting ring, 110-a first rotating shaft, 111-a limiting groove, 112-a second rotating shaft and 113-a second ceramic fiber felt.

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. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention relates to a waterproof and dustproof corrugated pipe compensator, which comprises a corrugated pipe compensator body 1, wherein the corrugated pipe compensator body 1 comprises a connection pipe 101; the middle part of the connecting pipe 101 is provided with a corrugated pipe 102, and the peripheral side surface of the connecting pipe 101 is fixedly connected with two pipe plates 103; a pull rod 104 is fixedly connected between the opposite surfaces of the two tube plates 103, and the inner wall of the connecting tube 101 is fixedly connected with a guide shell 105;

one end of the guide shell 105 is communicated with an anti-backflow shell 106; the peripheral side surface of the guide cylinder 105 is fixedly connected with a first ceramic fiber felt 107 through an adhesive; the circumferential side surface of the guide cylinder 105 is fixedly connected with a rubber backing ring 108; the rubber backing ring 108 is used for improving the shock absorption performance of the connecting ring 109, the rubber backing ring 108 is made of fluororubber, and the fluororubber is made of synthetic rubber containing fluorine atoms, is resistant to chemicals, 300 ℃ high temperature, strong corrosion, ozone, light, weather, radiation and oil; the circumferential side surface of the rubber backing ring 108 is fixedly connected with two connecting rings 109 which are connected with each other; a first rotating shaft 110 is rotatably connected between the inner surfaces of the two connecting rings 109; two limiting grooves 111 are formed in one surface of the backflow prevention cylinder 106; a second rotating shaft 112 is rotatably connected between the inner surfaces of the two limiting grooves 111; the peripheral side surfaces of the first rotating shaft 110 and the second rotating shaft 112 are sleeved with second ceramic fiber felts 113; the first ceramic fiber felt 107 and the second ceramic fiber felt 113 are both ceramic fiber felts, the ceramic fiber felts are prepared by mixing ceramic fiber cotton and a small amount of bonding agents and are processed by adopting an automatic control continuous production process, and the ceramic fiber felts have the advantages of accurate size, good flatness, high strength and the like, are non-brittle materials with low thermal capacity and low thermal conductivity, are good in elasticity, high in compression strength, good in wind erosion resistance, long in service life, excellent in thermal stability and thermal shock resistance, uniform in fiber distribution, stable in performance, good in stripping resistance and easy to form or cut.

Wherein, the two connecting rings 109 and the two limiting grooves 111 are symmetrically distributed by taking the plane of the axis of the draft tube 105 as the axis.

Wherein, the included angle between the bevel edge of the backflow prevention cylinder 106 and the axis of the guide cylinder 105 is 145 degrees; the 145 degree bevel design helps to reduce the effect of smoke on the backflow prevention cylinder 106; a rubber grommet 108 is located between the first ceramic fiber mat 107 and the backflow prevention cylinder 106; the inner walls of the connecting pipe 101, the guide cylinder 105 and the anti-backflow cylinder 106 are coated with corrosion-resistant paint, and the corrosion-resistant paint is PVDF paint.

One specific application of this embodiment is: the ripple compensator is additionally provided with an anti-backflow device on the basis of a traditional compensator, namely an anti-backflow cylinder 106, a limit groove 111, a first rotating shaft 112 and a second ceramic fiber felt 113 are arranged on the anti-backflow cylinder 106 to achieve a first heavy anti-backflow purpose, a rubber backing ring 108, a connecting ring 109 and a first rotating shaft 110 are arranged on the guide cylinder 105 to achieve a second heavy anti-backflow purpose, and a first ceramic fiber felt 107 is fixedly arranged on the guide cylinder 105 to serve as a filler to achieve a triple anti-backflow purpose, wherein the second ceramic fiber felt 113 and the first ceramic fiber felt 107 both have elasticity and good heat resistance, so that elastic sealing can be performed on a gap formed between the guide cylinder 105 and the connecting pipe 101, and expansion of the guide cylinder 105 and expansion of the corrugated pipe 102 are not affected.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A waterproof and dustproof corrugated pipe compensator comprises a corrugated pipe compensator body (1), wherein the corrugated pipe compensator body (1) comprises a connecting pipe (101); the middle part of the connecting pipe (101) is provided with a corrugated pipe (102), and the peripheral side surface of the connecting pipe (101) is fixedly connected with two pipe plates (103); two fixedly connected with pull rod (104) between tube sheet (103) relative surface, its characterized in that: the inner wall of the connecting pipe (101) is fixedly connected with a guide cylinder (105);

one end of the guide cylinder (105) is communicated with an anti-backflow cylinder (106); the peripheral side surface of the guide cylinder (105) is fixedly connected with a first ceramic fiber felt (107); the circumferential side surface of the guide cylinder (105) is fixedly connected with a rubber backing ring (108); the circumferential side surface of the rubber backing ring (108) is fixedly connected with two connecting rings (109) which are connected with each other; a first rotating shaft (110) is rotatably connected between the inner surfaces of the two connecting rings (109); two limiting grooves (111) are formed in one surface of the backflow prevention cylinder (106); a second rotating shaft (112) is rotatably connected between the inner surfaces of the two limiting grooves (111); and the peripheral side surfaces of the first rotating shaft (110) and the second rotating shaft (112) are sleeved with second ceramic fiber felts (113).

2. The waterproof and dustproof bellows compensator of claim 1, wherein the two connecting rings (109) and the two limiting grooves (111) are symmetrically distributed around the plane of the axis of the draft tube (105).

3. The waterproof and dustproof bellow compensator according to claim 1, wherein the included angle between the oblique side of the backflow prevention cylinder (106) and the axis of the guide cylinder (105) is 145 °; the rubber backing ring (108) is positioned between the first ceramic fiber felt (107) and the backflow prevention cylinder (106).

4. The waterproof and dustproof corrugated pipe compensator according to claim 1, wherein the inner walls of the connecting pipe (101), the guide cylinder (105) and the backflow prevention cylinder (106) are coated with corrosion-resistant paint.