CN201458116U - Container inlet flange anticorrosion sleeve - Google Patents
Container inlet flange anticorrosion sleeve Download PDFInfo
- Publication number
- CN201458116U CN201458116U CN2009201093559U CN200920109355U CN201458116U CN 201458116 U CN201458116 U CN 201458116U CN 2009201093559 U CN2009201093559 U CN 2009201093559U CN 200920109355 U CN200920109355 U CN 200920109355U CN 201458116 U CN201458116 U CN 201458116U
- Authority
- CN
- China
- Prior art keywords
- flange
- double
- corrosion
- container
- sleeve
- 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 - Lifetime
Links
- 238000005260 corrosion Methods 0.000 claims abstract description 50
- 230000007797 corrosion Effects 0.000 claims description 47
- 239000010935 stainless steel Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 6
- 238000012824 chemical production Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Landscapes
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The anticorrosive sleeve for the flange at the inlet of the container is applied to the anticorrosion of the flange at the inlet of the liquid container in oil-gas fields or chemical production. The double-sided flange is disc-shaped, and flange connecting holes are uniformly distributed on the double-sided flange. Is characterized in that: two planes of the double-sided flange are respectively provided with an annular groove. An anti-corrosion sleeve is welded in the central hole of the double-sided flange. The effect is as follows: the double-sided flange of the anti-corrosion sleeve of the flange at the inlet of the container is arranged between the two original flanges, and the anti-corrosion sleeve is inserted into the original connecting pipe. The inlet flange of the container can be isolated from high-temperature high-pressure oil gas flow, and the inlet flange and the connecting pipe of the container can be protected.
Description
Technical field
The utility model relates to oil-gas field or chemical production technical field, and particularly liquid container is a kind of inlet flange Corrosion Interception Sleeve of liquid container, is applicable to the anticorrosion of petrochemical complex liquid container inlet.
Background technology
In oil-gas field and chemical process, when entering container owing to the high temperature pressure corrosion hydrocarbon flow, the container entrance flange face bears the impact and the corrosion of fluid, and sealing property is variation day by day, has the danger of oil and gas leakage, brings very big hidden danger to safety in production.
Because the restriction of liquid container manufacturing technology and cost, the manufactured materials of container can not always keep convection cell that the corrosion resistance of highest level is arranged, so the corrosion of container entrance flange is unavoidable.At present, the inlet flange of fluid container and tank body of container weld together after the corrosion of the connection pipe between inlet flange or flange and the tank body, need repairing, and conventional method has two kinds.
1, the method for changing new for old.The flange and the connection pipe of corrosion are cut away new flange and connection pipe in the welding.The method step is many, and is long in time limit, the liquid in the container need be put totally, do not tackle the problem at its root, and destroyed the integraty of pressure container, and production has brought new risk to oil gas.
2, repair welding method.After the built-up welding of hot spot elder generation, polish flat.The method does not tackle the problem at its root yet, and adds the welded metal material on inlet flange, and easier causing corrodes, and increased the weight of corrosion to a certain extent.
More than two kinds of methods all can not solve container entrance flange etching problem well.
The utility model content
The purpose of this utility model is: a kind of container entrance flange Corrosion Interception Sleeve is provided, sleeve is welded on the Double-face flange, by the type of attachment of flange, Double-face flange is installed between original two flanges, Corrosion Interception Sleeve inserts in the original connection pipe.Can keep apart the inlet flange of container and High Temperature High Pressure hydrocarbon flow, thereby etching problem is imputed to middle Double-face flange and sleeve, reach the purpose of protection container entrance flange and connection pipe.
The technical solution adopted in the utility model is: container entrance flange Corrosion Interception Sleeve, mainly form by Double-face flange and Corrosion Interception Sleeve, and be evenly distributed with the flange connecting bore on the Double-face flange.It is characterized in that: Double-face flange is a disc, on two planes of Double-face flange annular groove is arranged respectively.The effect of annular groove is can hold packing seal in the groove when mounted.In the centre hole of Double-face flange, be welded with Corrosion Interception Sleeve.
The external diameter of Corrosion Interception Sleeve is identical with the internal diameter of former connection pipe.
Double-face flange adopts the 316L corrosion-resistant steel to make.The Corrosion Interception Sleeve material is the 316L corrosion-resistant steel, wall thickness 1～3mm, length 100～400mm.
One end of Corrosion Interception Sleeve is welded on the center bore inner wall of Double-face flange.
The beneficial effects of the utility model: the utility model container entrance flange Corrosion Interception Sleeve, Double-face flange and Corrosion Interception Sleeve are combined into independent pipe fitting.By the type of attachment of flange, Double-face flange is installed between original two flanges, Corrosion Interception Sleeve inserts in the original connection pipe.So just the inlet flange of container and High Temperature High Pressure hydrocarbon flow are kept apart, can reach protection container entrance flange and connection pipe.This container entrance flange Corrosion Interception Sleeve can be convenient for changing and safeguard, increases work efficiency greatly.
Description of drawings
Fig. 1 is the utility model pressure container inlet flange Corrosion Interception Sleeve structural profile scheme drawing.
Fig. 2 is the utility model pressure container inlet flange Corrosion Interception Sleeve scheme of installation.
Fig. 3 is the scheme drawing of embodiment 2.
Among the figure, 1. Double-face flange, the 2. inwall of Double-face flange, 3. Corrosion Interception Sleeve, 4. pipeline flange, 5. container entrance flange.
The specific embodiment
Embodiment 1: with a pressure container inlet flange Corrosion Interception Sleeve is example, and the utility model is described in further detail.
Consult Fig. 1.The utility model container entrance flange Corrosion Interception Sleeve mainly is made up of Double-face flange 1 and Corrosion Interception Sleeve 3, and Double-face flange 1 is a disc, is evenly distributed with the flange connecting bore on the Double-face flange 1.250 millimeters of Double-face flange 1 external diameters, 20 millimeters of thickness adopt the 316L corrosion-resistant steel to make.On two planes of Double-face flange 1, annular groove is arranged respectively.In the centre hole of Double-face flange 1, be welded with Corrosion Interception Sleeve 3.Corrosion Interception Sleeve 3 is the 316L corrosion-resistant steel, and external diameter is identical with the internal diameter of former connection pipe, wall thickness 2mm, length 300mm.One end of Corrosion Interception Sleeve 3 is welded on the center bore inner wall 2 of Double-face flange 1.Corrosion Interception Sleeve 3 can insert in the former connection pipe.
Embodiment 2: consult Fig. 3.Embodiment 2 with embodiment 1 difference is: outside Double-face flange 1, Corrosion Interception Sleeve 3 is the two ends of Double-face flange 1 centre hole with the weld of Double-face flange 1 respectively at the two ends of Corrosion Interception Sleeve 3.Corrosion Interception Sleeve 3 two ends can be inserted in the tank body of container inlet flange respectively and be inserted in the pipeline flange that is attached thereto.
The installation process:
Consult Fig. 2.Corrosion Interception Sleeve 3 is welded on the Double-face flange 1, after bakingout process and flaw detection are qualified, back seal glue is evenly smeared on top layer at sleeve, slowly put into container entrance flange 5, Double-face flange 1,4 three flanges of container entrance flange 5 and pipeline flange are installed and are connected in the usual way, and packing seal is an octangonal ring.
Through 1 year try out, this Corrosion Interception Sleeve actv. was protected the inlet flange of pressure container.And the supporting Double-face flange of sleeve adopts is the strong 316L corrosion-resistant steel of resistance to corrosion, has reduced effectively because the flange corrosion causes the risk of oil and gas leakage.
Claims (4)
1. container entrance flange Corrosion Interception Sleeve, mainly form by Double-face flange (1) and Corrosion Interception Sleeve (3), Double-face flange (1) is a disc, Double-face flange is evenly distributed with the flange connecting bore on (1), it is characterized in that: on two planes of Double-face flange (1), annular groove is arranged respectively, in the centre hole of Double-face flange (1), be welded with Corrosion Interception Sleeve (3).
2. container entrance flange Corrosion Interception Sleeve according to claim 1 is characterized in that: the external diameter of Corrosion Interception Sleeve (3) is identical with the internal diameter of former connection pipe.
3. container entrance flange Corrosion Interception Sleeve according to claim 1 is characterized in that: Double-face flange (1) adopts corrosion-resistant steel to make; Corrosion Interception Sleeve (3) material is a corrosion-resistant steel, wall thickness 1～3mm, length 100～400mm.
4. container entrance flange Corrosion Interception Sleeve according to claim 1 is characterized in that: an end of Corrosion Interception Sleeve (3) is welded on the center bore inner wall (2) of Double-face flange (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201093559U CN201458116U (en) | 2009-06-22 | 2009-06-22 | Container inlet flange anticorrosion sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201093559U CN201458116U (en) | 2009-06-22 | 2009-06-22 | Container inlet flange anticorrosion sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201458116U true CN201458116U (en) | 2010-05-12 |
Family
ID=42385469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201093559U Expired - Lifetime CN201458116U (en) | 2009-06-22 | 2009-06-22 | Container inlet flange anticorrosion sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201458116U (en) |
-
2009
- 2009-06-22 CN CN2009201093559U patent/CN201458116U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100549486C (en) | Novel dual metal composite pipes and manufacture method | |
| CN202349474U (en) | Double-metal composite butt welding three-way pipe fitting | |
| CN101694261B (en) | Internal repaired mouth construction process of internal coating pipeline | |
| CN201672164U (en) | Metal composite tube with adapter rings | |
| CN202580332U (en) | Bimetal composite pipe fitting with instrument joint | |
| CN201458116U (en) | Container inlet flange anticorrosion sleeve | |
| CN204294716U (en) | The expanding compound tube end sizing of hydraulic pressure of dual-metal clad steel pipe and sealing device | |
| CN206191085U (en) | High temperature resistant resistant high vacuum lining fluorine pipeline | |
| CN101430166A (en) | Hydrogenation reaction effluent air cooler tube bundle system used for chlorine-containing raw oil production | |
| CN202349404U (en) | Bi-metal composite pipe with end parts being with external threads | |
| CN103245222A (en) | Pipeline configuration structure of triple-inlet air cooler system for hydrogenation reaction effluents | |
| CN201836559U (en) | Thread seal joint for connecting bimetal tube with external diameter being not less than 30mm | |
| CN201502812U (en) | Bimetal pipe fitting for composite pipe | |
| CN201908579U (en) | Anti-corrosion wear-resistant composite lining pipe | |
| CN109238642B (en) | Be applied to blind pipe device of flowing safety experiment circulation system | |
| CN201302395Y (en) | Hydrogenation-reaction outflow tube-bundle system of air cooler for machining chloric raw oil | |
| CN212564773U (en) | Stainless steel pipeline | |
| CN202432178U (en) | Heat-insulation petroleum pipe | |
| CN206918456U (en) | A kind of immersible pump lifting pipe | |
| CN209341922U (en) | The blind plate of heat exchanger maintenance | |
| CN211623344U (en) | Electroplating anti-corrosion oil casing suitable for carbon dioxide oil displacement process | |
| CN209385820U (en) | A kind of composite bimetal pipe with bonding interface | |
| CN212900077U (en) | Tetrafluoro valve plate with high sealing performance | |
| CN109175059A (en) | Risen the method for processing groove inner liner stainless steel elbow using water | |
| CN204664748U (en) | Embedded pipe inner-wall cathode protector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100512 |