CN2596158Y - Insulation connection structure of metal loosing flange pipe - Google Patents
Insulation connection structure of metal loosing flange pipe Download PDFInfo
- Publication number
- CN2596158Y CN2596158Y CN 02245538 CN02245538U CN2596158Y CN 2596158 Y CN2596158 Y CN 2596158Y CN 02245538 CN02245538 CN 02245538 CN 02245538 U CN02245538 U CN 02245538U CN 2596158 Y CN2596158 Y CN 2596158Y
- Authority
- CN
- China
- Prior art keywords
- metal
- flange
- utility
- metal pipes
- loosing
- 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
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- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The utility model relates to an insulation connection structure of a metal loosing flange pipe. The utility model comprises two metal pipes (1), the end parts of which are provided with flanges (11). A sealing ring (5) is lined between the two metal pipes. The outer sides of the two metal pipes (1) are respectively sheathed with a metal flange (3) in a loosing way, and the metal flanges are connected into integration through a plurality of screw bolts (2) which are arranged on the flange (3) at a circumferential direction. The utility model is characterized in that the sealing ring (5) is made of insulating materials, and the sealing ring is lined with insulating pipe sleeves (4) with L-shaped cross sections between the metal pipes (1) and the flange (3). The insulating pipe sleeves (4) can be formed into a whole element, but the insulating pipe sleeves are best to be combined by at least two separated elements to convenient to install. Because the metal pipes which are mutually connected into integration are isolated by insulating materials, and the loosing flanges and the metal pipes are also isolated by insulating materials, the utility model causes the generation of electrochemical corrosion between the metal pipes to be prevented, and the utility model can be applied to corrosive environments for a long time.
Description
Technical field
The utility model relates to a kind of linkage structure of pipeline, particularly a kind of insulation linkage structure of metal lap joint flange pipe.
Background technique
Common metal lap joint flange pipe Placement is for connecting one with bolt with two metal tubes that have flange on lap joint flange, there is not insulation measures in the joint, if be applied to the occasion that naval vessel etc. works in corrosive atmosphere, because the electrochemical corrosion reaction takes place in the contacting point between the different metal pipe easily, cause the corrosion and the damage of metal tube, at present, adopt the whole passive method of directly changing for the metal tube that is corroded, also have and adopt the more method of conversion materials: steel pipe has been broken the recopper pipe, copper pipe has been broken and has been changed Stainless Steel Tube, hardly realize to do so not only not reach the corrosion-resistant purpose, quicken to cause other corrosions of metal on the contrary.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of insulation linkage structure that can effectively prevent the metal lap joint flange pipe of electrolytic corrosion at above-mentioned prior art present situation.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: the insulation linkage structure of metal lap joint flange pipe comprises that two radicles have the metal tube of flange, be lined with seal ring between the two, outer each pine of two metal tubes is with a metal flange, and by circumferentially being arranged on a plurality of bolts connection one on the flange, it is characterized in that described seal ring is the insulation material, and between metal tube and flange, be lined with the insulative that the cross section is the L type.
Described insulative can be a single piece, but for easy for installation, to be put together to good by at least two split parts.
Compared with prior art, the utility model is owing to interconnecting between the metal tube of one and all isolated by the material that insulate between lap joint flange and the metal tube, thereby stopped the generation of electrochemical corrosion between the metal tube, it can be worked in the corrosive atmosphere for a long time.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation.
Fig. 2 is the A-A sectional view (metal tube and insulative part) of Fig. 1.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, the insulation linkage structure of metal lap joint flange pipe comprises that two radicles have the metal tube 1 of flange 11, be lined with the seal ring 5 of insulation material between the two, two metal tubes, 1 outer each pine is with a metal flange 3, and connect one, and between metal tube 1 and flange 3, be lined with the insulative 4 that the cross section is the L type by a plurality of bolts 2 that circumferentially are arranged on the flange.
Described in the present embodiment insulative 4 is put together by the split part of two symmetries, referring to Fig. 2.
Claims (2)
1, a kind of insulation linkage structure of metal lap joint flange pipe, comprise that two radicles have the metal tube of flange (11) (1), be lined with seal ring (5) between the two, two metal tubes (1) Wai Gesong is with a metal flange (3), and by circumferentially being arranged on a plurality of bolts (2) connection one on the flange (3), it is characterized in that described seal ring (5) is the insulation material, and between metal tube (1) and flange (3), be lined with the insulative (4) that the cross section is the L type
2, the insulation linkage structure of metal lap joint flange pipe according to claim 1 is characterized in that described insulative (4) is put together by at least two split parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02245538 CN2596158Y (en) | 2002-12-13 | 2002-12-13 | Insulation connection structure of metal loosing flange pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02245538 CN2596158Y (en) | 2002-12-13 | 2002-12-13 | Insulation connection structure of metal loosing flange pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2596158Y true CN2596158Y (en) | 2003-12-31 |
Family
ID=33717103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02245538 Expired - Fee Related CN2596158Y (en) | 2002-12-13 | 2002-12-13 | Insulation connection structure of metal loosing flange pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2596158Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702353B (en) * | 2009-11-13 | 2011-07-20 | 江苏科技大学 | Flexible joint connected by heterogeneous metals and connecting method thereof |
| CN103307379A (en) * | 2013-06-24 | 2013-09-18 | 贵州开磷（集团）有限责任公司 | Connecting structure of movable steel skeleton composite pipe |
| CN104089780A (en) * | 2014-07-03 | 2014-10-08 | 中国航空动力机械研究所 | Air inflow pipe used for model turbine tester and model turbine tester |
| CN112377689A (en) * | 2020-11-09 | 2021-02-19 | 江阴犇源精密零部件制造有限公司 | Novel loose flange |
| CN113898802A (en) * | 2021-10-26 | 2022-01-07 | 中船黄埔文冲船舶有限公司 | Anti-corrosion flange connecting structure |
| CN114738563A (en) * | 2022-04-24 | 2022-07-12 | 中国海洋石油集团有限公司 | Pipeline insulation method and device for dissimilar metal submarine pipeline |
-
2002
- 2002-12-13 CN CN 02245538 patent/CN2596158Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101702353B (en) * | 2009-11-13 | 2011-07-20 | 江苏科技大学 | Flexible joint connected by heterogeneous metals and connecting method thereof |
| CN103307379A (en) * | 2013-06-24 | 2013-09-18 | 贵州开磷（集团）有限责任公司 | Connecting structure of movable steel skeleton composite pipe |
| CN103307379B (en) * | 2013-06-24 | 2016-10-05 | 贵州开磷集团股份有限公司 | A kind of attachment structure of movable steel skeleton composite pipe |
| CN104089780A (en) * | 2014-07-03 | 2014-10-08 | 中国航空动力机械研究所 | Air inflow pipe used for model turbine tester and model turbine tester |
| CN112377689A (en) * | 2020-11-09 | 2021-02-19 | 江阴犇源精密零部件制造有限公司 | Novel loose flange |
| CN113898802A (en) * | 2021-10-26 | 2022-01-07 | 中船黄埔文冲船舶有限公司 | Anti-corrosion flange connecting structure |
| CN114738563A (en) * | 2022-04-24 | 2022-07-12 | 中国海洋石油集团有限公司 | Pipeline insulation method and device for dissimilar metal submarine pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |