CN202629414U - Expansion joint for glass steel pipeline - Google Patents
Expansion joint for glass steel pipeline Download PDFInfo
- Publication number
- CN202629414U CN202629414U CN 201220323323 CN201220323323U CN202629414U CN 202629414 U CN202629414 U CN 202629414U CN 201220323323 CN201220323323 CN 201220323323 CN 201220323323 U CN201220323323 U CN 201220323323U CN 202629414 U CN202629414 U CN 202629414U
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- China
- Prior art keywords
- section
- expansion joint
- pipeline
- glass steel
- socket
- 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
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Abstract
The utility model belongs to the technical field of glass steel pipelines and discloses an expansion joint for a glass steel pipeline. The expansion joint for the glass steel pipeline is mainly technically characterized by comprising a socket section, a bell mouth section, position-limiting flange plates which are respectively arranged on the socket section and the bell mouth section, and a position-limiting screw rod for connecting the two position-limiting flange plates, wherein cylinder sections are arranged at the front end parts of the socket section and the bell mouth section. The expansion joint for the glass steel pipeline has large expansion amount and can effectively overcome the defect of rupture risk of the pipeline due to increase in the pressure in a pipe caused by the increase in axial thrust so as to prolong the service life of the pipeline.
Description
Technical field
The utility model belongs to the GRP pipe technical field, relates in particular to a kind of anticorrosive coat oil storage tank and preparation method thereof in the double-walled construction that has.
Background technique
GRP pipe has the characteristics of light weight, corrosion-resistant and easy construction, is widely used at oil, chemical industry and Other Engineering.But in the laying and using process of long distance, owing to expanding with heat and contract with cold of the liquid that relates to, constructs or carried, gas, every pipeline enclosure at a distance from a section must be provided with expansion joint.The expansion joint that present pipeline is adopted compensates pipeline section, flexible elastomer connector and canvas lining cemented joint by wavy metal and connects and composes.And wavy metal compensation pipeline section needs larger axis to pulling force and just flexible of thrust, is difficult to mate with GRP pipe; Flexible elastomer connector large diameter pipeline working pressure is no more than 0.6MPa; The canvas lining cemented joint only is used for the gas material pipeline.Therefore the fed sheet of a media that has contained the GRP pipe of above-mentioned expansion joint has been received restriction.
The model utility content
The purpose of the utility model just provides a kind of GRP pipe expansion joint that can satisfy pressure, expand and shrink freely.
Realize that the technological scheme that the utility model above-mentioned purpose is adopted is:
A kind of GRP pipe expansion joint comprises faucet section, socket section, is separately positioned on the spacing flange plate on said faucet section and the socket section, connects the spacing screw rod of these two spacing flange plate, and the front end of said faucet section and socket section is provided with cylindrical section.
Wherein, in described socket section or/and the cylindrical section front end of faucet section is provided with seal ring; Said spacing screw rod is provided with the block that two spacings are not more than said cylindrical section length.
A kind of GRP pipe expansion joint that the utility model provided; Compare with existing technology and to have the following advantages: because this GRP pipe expansion joint is made up of the cylindrical section with mutual socket joint; Not only extending amount is big for it, and realizes that at the socket section slideway required end thrust is less in pipeline expands with heat and contract with cold through O-ring seal because expansion joint is flexible; Make GRP pipe in use can be in safe state; Reduced the heat end thrust when shrinking that rises effectively, overcome in the existing technology, improved the working life of pipeline because end thrust strengthens and causes managing the internal pressure increase and cause the pipeline breaking dangerous defects.
Description of drawings
Fig. 1 is the structural representation of GRP pipe expansion joint;
Fig. 2 is the structural representation that is provided with the GRP pipe expansion joint of two seal rings.
Embodiment
Below in conjunction with accompanying drawing the structure of the GRP pipe expansion joint that the utility model provided is done further detailed description.
As shown in Figure 1, the structural representation of the GRP pipe expansion joint that provides for the utility model.The structure that constitutes this GRP pipe expansion joint comprises and can socket joint faucet section 1 together be provided with the cylindrical section 7 and 8 that is plugged on together with socket section 2, this faucet section and socket section; Faucet section is provided with the spacing flange plate 3,4 that is connected by spacing screw rod 5 with socket section, and the seal ring 6 that is provided with at the front end of faucet section; Wherein said spacing screw rod 5 is provided with two blocks 9,10 of its spacing less than cylindrical section length.
During use; High temperature, high pressure liquid or gas are when being arranged at the expansion joint that is made up of faucet section 1 and socket section 2 in the GRP pipe; Because causing faucet section or socket section to be compressed relatively, the variation of temperature or pressure shortens; The distance that its compression shortens is less than the length of faucet section or socket section cylindrical section, and limited by the set spacing that is through the spacing screw rod block 9,10 in two spacing flanges.Wherein O-ring seal is fixed on the front end of socket section.When low-temp low-pressure liquid or gas when being arranged at the expansion joint that constitutes by faucet section 1 and socket section 2 in the GRP pipe; Because shrinking, the variation conveyance conduit of temperature or pressure cause faucet section or socket section to be pulled out relatively in opposite directions; It pulls out the length of elongated distance less than faucet section or socket section cylindrical section, and is limited by the set spacing that is through the spacing screw rod block 9,10 in two spacing flanges.
In the structure of above-mentioned GRP pipe expansion joint, seal ring 6 can also be arranged on the front end of socket section; Or seal ring 6 as shown in Figure 2 is arranged on the front end of faucet section and faucet section simultaneously, and it is better to the GRP pipe sealing effect that is used for conveying gas; This Fig. 2 is that high temperature, high pressure liquid or gas are during through GRP pipe, because the expansion of pipeline axial makes faucet section and socket section compress the structure that shortens relatively.
Claims (3)
1. GRP pipe expansion joint; It is characterized in that: comprise faucet section, socket section, be separately positioned on the spacing flange plate on said faucet section and the socket section; Connect the spacing screw rod of these two spacing flange plate, the front end of said faucet section and socket section is provided with cylindrical section.
2. a kind of GRP pipe expansion joint as claimed in claim 1 is characterized in that: in described socket section or/and the cylindrical section front end of faucet section is provided with seal ring.
3. a kind of GRP pipe expansion joint as claimed in claim 1 is characterized in that: said spacing screw rod is provided with the block that two spacings are not more than said cylindrical section length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220323323 CN202629414U (en) | 2012-07-05 | 2012-07-05 | Expansion joint for glass steel pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220323323 CN202629414U (en) | 2012-07-05 | 2012-07-05 | Expansion joint for glass steel pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202629414U true CN202629414U (en) | 2012-12-26 |
Family
ID=47382614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220323323 Expired - Lifetime CN202629414U (en) | 2012-07-05 | 2012-07-05 | Expansion joint for glass steel pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202629414U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190568A (en) * | 2019-06-28 | 2019-08-30 | 广东海洋大学 | It is a kind of convenient for fixed electrical engineering location and installation casing |
-
2012
- 2012-07-05 CN CN 201220323323 patent/CN202629414U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190568A (en) * | 2019-06-28 | 2019-08-30 | 广东海洋大学 | It is a kind of convenient for fixed electrical engineering location and installation casing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 053200, 955, Southern China Avenue, Jizhou, Hebei, Hengshui Patentee after: JIZHOU ZHONGYI FRP Co.,Ltd. Address before: 053200, 955, Southern China Avenue, Jizhou, Hebei, Hengshui Patentee before: Jizhou Zhongyi FRP Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |
|
| CX01 | Expiry of patent term |