CN217874816U - Expansion joint protection device - Google Patents
Expansion joint protection device Download PDFInfo
- Publication number
- CN217874816U CN217874816U CN202221844346.6U CN202221844346U CN217874816U CN 217874816 U CN217874816 U CN 217874816U CN 202221844346 U CN202221844346 U CN 202221844346U CN 217874816 U CN217874816 U CN 217874816U
- Authority
- CN
- China
- Prior art keywords
- expansion joint
- inner cylinder
- protected
- protection device
- flange plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 239000012530 fluid Substances 0.000 abstract description 10
- 239000002245 particle Substances 0.000 abstract description 7
- 239000007787 solid Substances 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Joints Allowing Movement (AREA)
Abstract
The utility model discloses an expansion joint protection device, which comprises a flange plate and an inner cylinder, wherein the flange plate is fixed at one end of the inner cylinder, the outer diameter of the inner cylinder is smaller than the inner diameter of an expansion joint to be protected, the inner cylinder is inserted into the inner cavity of the expansion joint to be protected, and the flange plate is connected with the expansion joint to be protected through a flange gasket; compared with the prior art, the utility model discloses when the transmission has the fluid of solid particle, can prevent effectively that the expansion joint inside lining from damaging, have the structure retrench, use nimble and easily change's characteristics.
Description
Technical Field
The utility model belongs to the pipe-line equipment, concretely relates to protection device of expansion joint.
Background
Expansion joints are also conventionally called compensators, or expansion joints. It is composed of corrugated pipe (an elastic element) and end pipe, supporter, flange and guide pipe. The expansion joint is a flexible structure provided on the vessel shell or pipe in order to compensate for additional stresses due to temperature differences and mechanical vibrations. The effective telescopic deformation of the working body corrugated pipe is utilized to absorb the dimensional change of pipelines, conduits, containers and the like caused by expansion and contraction due to heat and the like or compensate the axial, transverse and angular displacement of the pipelines, the conduits, the containers and the like. The compensator can also be used for noise reduction, vibration reduction and heat supply, and in order to prevent the pipeline from deforming or damaging due to thermal elongation or temperature stress when the temperature of a heat supply pipeline rises, the compensator is required to be arranged on the pipeline to compensate the thermal elongation of the pipeline, so that the stress of the pipeline wall and the acting force acting on a valve piece or a bracket structure are reduced.
An expansion joint is provided, the outer part of which is a stainless steel corrugated framework and mainly used for damping and eliminating stress; the inner lining is a polytetrafluoroethylene film which mainly plays a role in protecting the stainless steel corrugated pipe from being corroded.
In the production application, when this expansion joint is applied to the fluid that has solid particle, solid particle thing is under the effect of fluid thrust, solid particle erodees polytetrafluoroethylene inside lining surface, cause the inside lining short time to damage and drop, then take place the expansion joint and damage, the condition of medium leakage, influence normal operating, and can't observe the expansion joint inner wall condition in the operation process, cause only can discover the damage when the medium takes place to leak on a large scale, so need regularly to overhaul the operation to the expansion joint, seriously influence operating mode steady operation.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's not enough, provide an expansion joint protection device that expansion joint inside lining damage can effectively be prevented when the transmission has the fluid of solid particle.
The utility model provides a technical scheme that its technical problem adopted: the expansion joint protection device comprises a flange plate and an inner cylinder, wherein the flange plate is fixed at one end of the inner cylinder, the outer diameter of the inner cylinder is smaller than the inner diameter of an expansion joint to be protected, the inner cylinder is inserted into an inner cavity of the expansion joint to be protected, and the flange plate is connected with an expansion joint flange to be protected through a flange gasket.
Preferably, the inner cylinder is made of stainless steel, and a titanium layer is arranged on the inner wall of the inner cylinder.
The utility model discloses a using-way and principle: the inner cylinder of the utility model is inserted into the inner cavity of the expansion joint, the flange plate is connected with the flange of the expansion joint, the inner cylinder of the utility model is inserted from which end of the expansion joint, and the fluid flows in from which end of the expansion joint and is inserted from which end depending on the flushing direction of the fluid; because of the connection relationship between the utility model and the expansion joint, the installation of the utility model can not affect the compensation displacement and stress elimination function of the expansion joint, when the fluid flows into the expansion joint from the pipeline, because the inner cylinder exists between the inner lining of the expansion joint and the fluid, the fluid containing solid particles is prevented from directly scouring the inner lining of the expansion joint;
in order to achieve better protection, the inner cylinder is made of stainless steel, the inner wall of the inner cylinder is provided with a titanium layer, titanium is a metal with strong passivation tendency, a stable oxidation protection film can be rapidly generated in air and an oxidizing or neutral aqueous solution, and the inner cylinder can rapidly and automatically recover even if the film is damaged for some reasons.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses when the transmission has the fluid of solid particle, can prevent effectively that the expansion joint inside lining from damaging, have the structure retrench, use nimble and easily change's characteristics.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic top view of the present invention;
fig. 3 is a schematic view of the installation structure of the present invention.
Detailed Description
Embodiment 1, the present invention will be further described with reference to fig. 1-3, wherein the expansion joint protection device comprises a flange plate 1 and an inner tube 2, the flange plate is fixed at one end of the inner tube, the outer diameter of the inner tube is smaller than the inner diameter of the expansion joint to be protected, the inner tube is inserted into the inner cavity of the expansion joint to be protected, and the flange plate is connected with the flange of the expansion joint to be protected through a flange gasket.
Preferably, the inner cylinder is made of stainless steel, and a titanium layer is arranged on the inner wall of the inner cylinder.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (2)
1. Expansion joint protection device, including ring flange (1) and inner tube (2), its characterized in that: the flange plate is fixed at one end of the inner cylinder, the outer diameter of the inner cylinder is smaller than the inner diameter of the expansion joint to be protected, the inner cylinder is inserted into the inner cavity of the expansion joint to be protected, and the flange plate is connected with the expansion joint to be protected through a flange gasket.
2. The expansion joint protection device of claim 1, wherein: the inner cylinder is made of stainless steel, and a titanium layer is arranged on the inner wall of the inner cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221844346.6U CN217874816U (en) | 2022-07-18 | 2022-07-18 | Expansion joint protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221844346.6U CN217874816U (en) | 2022-07-18 | 2022-07-18 | Expansion joint protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217874816U true CN217874816U (en) | 2022-11-22 |
Family
ID=84053711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221844346.6U Active CN217874816U (en) | 2022-07-18 | 2022-07-18 | Expansion joint protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217874816U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116753387A (en) * | 2023-06-29 | 2023-09-15 | 江苏中能硅业科技发展有限公司 | Movable expansion joint and granular silicon weighing system |
-
2022
- 2022-07-18 CN CN202221844346.6U patent/CN217874816U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116753387A (en) * | 2023-06-29 | 2023-09-15 | 江苏中能硅业科技发展有限公司 | Movable expansion joint and granular silicon weighing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |