CN202756829U - Anticorrosion abrasion resistant composite expansion joint - Google Patents
Anticorrosion abrasion resistant composite expansion joint Download PDFInfo
- Publication number
- CN202756829U CN202756829U CN 201220421605 CN201220421605U CN202756829U CN 202756829 U CN202756829 U CN 202756829U CN 201220421605 CN201220421605 CN 201220421605 CN 201220421605 U CN201220421605 U CN 201220421605U CN 202756829 U CN202756829 U CN 202756829U
- Authority
- CN
- China
- Prior art keywords
- corrugated pipe
- fluorocarbon coating
- expansion joint
- base material
- coating layer
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Diaphragms And Bellows (AREA)
Abstract
An anticorrosion abrasion resistant composite expansion joint comprises a corrugated pipe, connecting short pipes which are arranged at two ends of the corrugated pipe and a flow guide pipe which is arranged inside the corrugated pipe. After being improved, the corrugated pipe is of a composite layer structure. The corrugated pipe is composed of corrugated pipe base material and a corrugated pipe fluorocarbon coating layer which is coated on the inner wall of the corrugated pipe base material. The thickness of the corrugated pipe fluorocarbon coating layer is 50-60 micrometers. According to the anticorrosion abrasion resistant composite expansion joint, the fluorocarbon coating layer is coated on the surfaces of the corrugated pipe and the flow guide pipe, the wonderful chemical inertness, the performance of preventing corrosion by media such as acid, alkali and salt and high surface hardness of the fluorocarbon coating layer are used to provide a protective barrier for metal base material, the absorption pipeline heat compensation ability of the expansion joint is kept, and meanwhile the anticorrosion ability, the abrasion resistant performance and the impact resistant performance of the expansion joint are greatly improved, and the service life of the expansion is greatly prolonged. The anticorrosion abrasion resistant composite expansion joint is used in pipelines of petroleum industries, chemical industries and the like, the operating cost of the industrial pipelines can be lowered, and potential safety hazards of the pipelines can be removed.
Description
Technical field
The utility model relates to a kind of pipe network parts, the composite expanded joint of the anticorrosion antiwear of compound fluorocarbon coating layer on metal base particularly, metal conduit technical field.
Background technique
Stainless steel is widely used at industrial field as anticorrosive, acid resistant alkali, high temperature resistant base material.Particularly 300 serial Austenitic Stainless Steels in industrial technology pipeline piping technology as the expansion joint of extraction duct heat compensating unit, technology maturation, reasonable price, ample supply of commodities on the market, therefore, all adopt core parts---the bellows of the design of 300 series stainless steel sheet materials, manufacturing expansion joint more than 90%.Wherein the expansion joint take 304 stainless steels as base material accounts for 60 ~ 70% of stainless steel expansion joint total amount.Yet 304 stainless steels are under the heavy ion medium long-term corrosions such as atmosphere, acid, alkali, salt, usually produce the thermal stress corrosion because of environment, dielectric corrosion and pipe temperature effect, medium greatly reduces the working life of expansion joint to long-term impact and the wearing and tearing of tube wall in addition.This situation has not only strengthened the conduit running cost, brings hidden danger also for the industrial pipeline safe operation.
The model utility content
Technical problem to be solved in the utility model is: provide a kind of take metal as base material, apply the composite expanded joint of anticorrosion antiwear of fluorocarbon coating layer.
The alleged problem of the utility model is solved by following technological scheme:
The composite expanded joint of a kind of anticorrosion antiwear, it comprises bellows and the connection short tube that is connected the bellows two ends, the honeycomb duct in the bellows is set, its specialization is: described bellows is lamination layer structure, it is made of bellows base material and bellows fluorocarbon coating layer, described bellows fluorocarbon coating layer is coated in the inwall of bellows base material, and its thickness is 50-60 μ m.
The composite expanded joint of above-mentioned anticorrosion antiwear, described honeycomb duct is lamination layer structure, it is made of honeycomb duct base material and fluorocarbon coating layer, described honeycomb duct base material inwall is provided with honeycomb duct fluorocarbon coating inner wall layer, its thickness is 100-120 μ m, honeycomb duct base material outer wall is provided with honeycomb duct fluorocarbon coating outer wall layer, and its thickness is 50-60 μ m.
The utility model is further to improve the anti-anti-corrosive properties of type metal expansion joint and wear-resisting property, structure to type metal expansion joint is improved, it is take metal as base material, apply the fluorocarbon coating layer at the corrugated stainless steel tubing internal surface, and the honeycomb duct that is positioned at bellows is made of metal base and fluorocarbon coating layer equally.This structure is utilized corrosive medium and the higher surface hardnesses such as the fabulous chemical inertness of fluorocarbon coating layer, acid-and base-resisting, salt; for metal base provides protective barrier; when keeping expansion joint extraction duct thermal compensation ability, can greatly improve anti-corrosion capacity, wear resistance and the impact resistance of expansion joint.The utility model is used for the industrial pipelines such as oil, chemical industry, can reduces industrial pipeline operating cost, eliminate pipe safety hidden danger, increase the service life.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the partial enlarged view at Figure 1A place;
Fig. 3 is the partial enlarged view at Figure 1B place.
Attached number in the figure is expressed as follows: 1. bellows; 1-1. bellows base material; 1-2. bellows fluorocarbon coating layer; 2. honeycomb duct; 2-1. honeycomb duct base material; 2-2. honeycomb duct fluorocarbon coating outer wall layer; 2-3. honeycomb duct fluorocarbon coating inner wall layer; 3. connection short tube.
Embodiment
Referring to Fig. 1, the utility model comprises bellows 1, and affixed connection short tube 3 is provided with honeycomb duct 2 in bellows at the bellows two ends, and honeycomb duct left end and bellows-welding, honeycomb duct right-hand member are free end.
Referring to Fig. 1, Fig. 2, for improving the anticorrosive and wear-resisting property of expansion joint, the employing lamination layer structure of its core component bellows, it is made of bellows substrate layer 1-1 and the bellows fluorocarbon coating layer 1-2 of stainless steel, described bellows fluorocarbon coating layer is coated in the inwall of bellows base material, and its thickness is 50-60 μ m.
Referring to Fig. 1, Fig. 3, for improving the performance of honeycomb duct, also adopt lamination layer structure, it is made of honeycomb duct base material 2-1 and the fluorocarbon coating layer of metal material, described honeycomb duct base material inwall is provided with honeycomb duct fluorocarbon coating inner wall layer 2-3, its thickness is 100-120 μ m, and honeycomb duct base material outer wall is provided with honeycomb duct fluorocarbon coating outer wall layer 2-2, and its thickness is 50-60 μ m.
The fluorocarbon coating layer adopts the method for spraying to be coated on bellows base material and the honeycomb duct base material.The fluorocarbon coating layer has good Corrosion Protection and splendid physical and mechanical properties; the chemical inertness of fluorocarbon coating layer is strong, paint film is tough and tensile, surface hardness is high, shock-resistant, anti-flexing, wear resistance are good, for bellows base material and honeycomb duct base material provide protective barrier.The inwall of honeycomb duct 2 is impact, friction and the corrosive fluorine that directly is subject to medium in working procedure, therefore adopts thicker fluorocarbon coating layer; Though the outer wall of honeycomb duct 2 and the inwall of bellows and medium contact, but can not be subject to the direct impact of medium, therefore to improve antiseptic power as main, therefore select thinner fluorocarbon coating layer, simultaneously thinner fluorocarbon coating layer is conducive to the ability that bellows keeps its extraction duct thermal compensation.
Claims (2)
1. composite expanded joint of anticorrosion antiwear, it comprises bellows (1) and the connection short tube (3) that is connected the bellows two ends, the honeycomb duct (2) in the bellows is set, it is characterized in that: described bellows (1) is lamination layer structure, it is made of bellows base material (1-1) and bellows fluorocarbon coating layer (1-2), described bellows fluorocarbon coating layer is coated in the inwall of bellows base material, and its thickness is 50-60 μ m.
2. the composite expanded joint of anticorrosion antiwear according to claim 1, it is characterized in that: described honeycomb duct (2) is lamination layer structure, it is made of honeycomb duct base material (2-1) and fluorocarbon coating layer, described honeycomb duct base material inwall is provided with honeycomb duct fluorocarbon coating inner wall layer (2-3), its thickness is 100-120 μ m, honeycomb duct base material outer wall is provided with honeycomb duct fluorocarbon coating outer wall layer (2-2), and its thickness is 50-60 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220421605 CN202756829U (en) | 2012-08-24 | 2012-08-24 | Anticorrosion abrasion resistant composite expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220421605 CN202756829U (en) | 2012-08-24 | 2012-08-24 | Anticorrosion abrasion resistant composite expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202756829U true CN202756829U (en) | 2013-02-27 |
Family
ID=47736012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220421605 Expired - Fee Related CN202756829U (en) | 2012-08-24 | 2012-08-24 | Anticorrosion abrasion resistant composite expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202756829U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829279A (en) * | 2012-08-24 | 2012-12-19 | 秦皇岛北方管业有限公司 | Corrosion-resistant wear-resistant composite expansion joint and preparation method thereof |
| CN107654787A (en) * | 2017-11-14 | 2018-02-02 | 中国十九冶集团有限公司 | For SO2The attachment structure of flue gas pipeline expansion joint |
-
2012
- 2012-08-24 CN CN 201220421605 patent/CN202756829U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829279A (en) * | 2012-08-24 | 2012-12-19 | 秦皇岛北方管业有限公司 | Corrosion-resistant wear-resistant composite expansion joint and preparation method thereof |
| CN102829279B (en) * | 2012-08-24 | 2015-02-04 | 秦皇岛北方管业有限公司 | Corrosion-resistant wear-resistant composite expansion joint and preparation method thereof |
| CN107654787A (en) * | 2017-11-14 | 2018-02-02 | 中国十九冶集团有限公司 | For SO2The attachment structure of flue gas pipeline expansion joint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100458259C (en) | Polymer composite corrugated expansion joint | |
| CN204099806U (en) | Anti-deformation double seal sleeve barrel compensator | |
| CN202756829U (en) | Anticorrosion abrasion resistant composite expansion joint | |
| CN102829279B (en) | Corrosion-resistant wear-resistant composite expansion joint and preparation method thereof | |
| CN204756192U (en) | Compound steel pipes | |
| CN204922275U (en) | Nitrogen gas delivery hose for air drilling | |
| CN101230945A (en) | Ripple compensator against vibration | |
| CN2354005Y (en) | Safety directly-buried type expansion section of metal corrugated pipe | |
| CN202756830U (en) | Special anticorrosion compound expansion joint for conduction oil pipeline | |
| CN201066019Y (en) | High polymer composite corrugated expansion joint | |
| CN202349420U (en) | Corrosion-resisting pipeline joint formed by welding of steel pipes made of different materials | |
| CN202612964U (en) | External pressure corrosion-resistant expansion joint | |
| CN209943705U (en) | Heat transfer stainless steel pipe for corrosion-resistant device | |
| CN103343843A (en) | Novel steel-plastic composite pipe | |
| CN202756831U (en) | Composite expansion joint resistant to highly corrosive media | |
| CN100441739C (en) | Method for treating screw pump two-way protective coupling surface | |
| CN204459587U (en) | The corrosion-resistant bellows expansion joint of middle cryogenic pipelines | |
| CN209587381U (en) | A kind of high-quality carbon slotless design steel pipe | |
| CN207729068U (en) | A kind of high-performance heat preservation production pipe with corrosion-proof lining | |
| CN208778894U (en) | A kind of inside and outside polyureas anticorrosion with painting pipeline | |
| CN2314213Y (en) | Fully buried corrosionproof corrugated expansion joint | |
| CN201599527U (en) | Corrugated pipe expansion joint and corrugated pipe thereof | |
| CN201535414U (en) | Special-purpose anticorrosion type corrugated pipe compensator | |
| CN203463854U (en) | Corrosion-resistant compensator with corrugated pipe | |
| CN212840127U (en) | Corrosion-resistant sewage pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20200824 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |