CN2185831Y - High-temp. insulating flange - Google Patents
High-temp. insulating flange Download PDFInfo
- Publication number
- CN2185831Y CN2185831Y CN 94208057 CN94208057U CN2185831Y CN 2185831 Y CN2185831 Y CN 2185831Y CN 94208057 CN94208057 CN 94208057 CN 94208057 U CN94208057 U CN 94208057U CN 2185831 Y CN2185831 Y CN 2185831Y
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- CN
- China
- Prior art keywords
- flange
- utility
- model
- seal groove
- gasket
- 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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- Thermal Insulation (AREA)
Abstract
The utility model relates to a high-temperature insulating flange, which is used for dividing the electrical conductivity of pipe cathodic protection system. The utility model is composed of a flange (1), a flange pad (2), etc. The utility model has the advantages that the end surface of the flange (1) is provided with a seal groove (3), and the upper and the lower surfaces of the flange pad (2) are respectively provided with a step. The structure satisfy the requirements that sealing materials have thermal expansibility, so the flange can well play the function of sealing.
Description
The utility model relates to a kind of pipeline cathode protection system electric conductivity separating device.
At present; the flange that is used for the electric conductivity separation of pipeline cathode protection system is not considered the thermal expansion coefficient of iron and steel and insulating material when Design and Machining; so after flange was made, its sealability changed with variation of temperature, cause flange leakage and the high adverse consequences of flange spoilage.In addition, because existing insulated flange pad all adopts plexiglass or nylon 66, and the maximum transmitted medium temperature of this class material is no more than 80 °, causes the heat resistance of flange can only be below 80 °.
It is good that the purpose of this utility model provides a kind of heat resistance, the reliable sealing insulated flange.
The utility model has seal groove (3) by flange plate (1) and flange gasket formations such as (2) on the end face of flange plate (1), flange gasket (2) upper and lower surface respectively has a step.
Advantage of the present utility model is: owing to the thermal expansivity of considering sealing material has adopted seal groove structure, improved the sealing of flange.
Fig. 1 is an erection drawing of the present utility model;
Fig. 2 is embodiment's plan view.
The utility model is further specified as follows below in conjunction with drawings and Examples:
As shown in Figure 1, consider the characteristic that iron and steel and insulating material expand with heat and contract with cold, go up each car of bottom surface at flange gasket (2) one step is arranged, and on the end face of flange plate (1), have seal groove (3), flange gasket (2) is placed between two flange plate (1), with bolton flange plate (1), thus the normal operation of assurance pipeline.
As shown in Figure 1 and Figure 2, the seal groove (3) of flange plate (1) end face can adopt square structure or triangular structure.
In order to improve oil resistant of the present utility model, heatproof intensity, flange gasket (2) is selected oil resistant, temperature resistant rubber material for use.
Claims (3)
1, a kind of heatproof insulated flange by flange plate (1) and flange gasket formations such as (2), is characterized in that flange plate (1) end face has seal groove (3), and flange gasket (2) upper and lower surface respectively has a step.
2, heatproof insulated flange according to claim 1 is characterized in that seal groove (3) is square structure or triangular structure.
3, heatproof insulated flange according to claim 1 is characterized in that gasket seal (2) adopts oil resistant, temperature resistant rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94208057 CN2185831Y (en) | 1994-04-03 | 1994-04-03 | High-temp. insulating flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94208057 CN2185831Y (en) | 1994-04-03 | 1994-04-03 | High-temp. insulating flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2185831Y true CN2185831Y (en) | 1994-12-21 |
Family
ID=33826188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94208057 Expired - Fee Related CN2185831Y (en) | 1994-04-03 | 1994-04-03 | High-temp. insulating flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2185831Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344144A (en) * | 2013-08-07 | 2015-02-11 | 德梅斯特（上海）环保设备有限公司 | Connecting device for plastic pipeline |
| CN105135104A (en) * | 2015-10-10 | 2015-12-09 | 上海外高桥造船海洋工程设计有限公司 | Sacrifice flange for sea water system |
| CN105276312A (en) * | 2014-06-16 | 2016-01-27 | 信越化学工业株式会社 | Flange fixing structure |
-
1994
- 1994-04-03 CN CN 94208057 patent/CN2185831Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344144A (en) * | 2013-08-07 | 2015-02-11 | 德梅斯特（上海）环保设备有限公司 | Connecting device for plastic pipeline |
| CN105276312A (en) * | 2014-06-16 | 2016-01-27 | 信越化学工业株式会社 | Flange fixing structure |
| CN105276312B (en) * | 2014-06-16 | 2019-07-30 | 信越化学工业株式会社 | Flange fixture construction |
| CN105135104A (en) * | 2015-10-10 | 2015-12-09 | 上海外高桥造船海洋工程设计有限公司 | Sacrifice flange for sea water system |
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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 |