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Insulating flange for connection of ship and shore pipelines

A flange and ship-to-shore technology is applied in the field of improvement of the structure of connecting flanges of ship-to-shore oil pipelines, and can solve the problems of difficult manufacturing process, difficult to guarantee reliability, and limited practical application.

Inactive Publication Date: 2006-01-11
JIANGSU DONGQIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the gasket in this technical solution should not only have good oil-resistant sealing performance, but also ensure that it has a stable expected resistance requirement under the bolted connection condition, there is a problem that the manufacturing process is difficult and the reliability is not easy to guarantee, which directly limits The practical application of the technology product

Method used

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  • Insulating flange for connection of ship and shore pipelines
  • Insulating flange for connection of ship and shore pipelines
  • Insulating flange for connection of ship and shore pipelines

Examples

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Embodiment Construction

[0017] exist figure 1 , figure 2 In the shown ship-to-shore connection insulating flange, an insulating gasket 8 is placed between the left flange 6 and the right flange 9 of the circular disc structure, and the insulating gasket 8 is made of asbestos with high strength, oil resistance and pressure resistance. Gasket, its resistance value is not less than 109Ω. There are several bolt holes evenly distributed on the surface of the left and right flanges, each bolt hole is pierced with a stud bolt 4 (also a single head bolt), and the left flange 6 and the right flange are connected by the nut washer 3. The flange 9 is locked and connected; the bolt 4 is covered with a bolt insulating sleeve 7, and an insulating gasket 5 is placed between the nut washer 3 on one side of the bolt 4 and the flange, so that the bolt 4 can realize The connection of the left and right flanges is fastened, and the two flanges are kept insulated. The left side short pipe 2 and the right side short p...

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Abstract

The present invention discloses a ship-bank connected insulating flange for ship-bank oil transferring pipeline of seaport and river port oil jetty. It includes the following components: left flange and right flange which are insulation-connected by means of bolt, insulation sealing ring between left flange and right flange, at least a resistor connected between the insulated left flange and right flange, subconductor gasket ring inlaid between collars of two flanges and externally-covered external protection jacket.

Description

technical field [0001] The invention relates to the oil transportation facilities of seaports (including estuary ports) and river ports and wharfs, in particular to the improvement of the connecting flange structure of ship-shore oil transportation pipelines. Background technique [0002] During ship-to-shore refueling or oil unloading operations at oil terminals, on the one hand, due to the flow of oil loading and unloading, filtration, and oil-water mixing, etc., a large amount of static charge will inevitably be generated, and it is easy to be charged between ship-to-shore oil transfer facilities. On the other hand, due to various reasons such as grounding of electrical facilities on the shore, high-voltage leakage, lightning, and electrochemical corrosion, the onshore oil pipeline will accumulate stray currents with higher discharge energy than static charges. There is an obvious potential difference between the ship and the shore, and it is very easy to cause a discharg...

Claims

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Application Information

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IPC IPC(8): F16L23/02F16L25/02
Inventor 王子纯谭凤贵
Owner JIANGSU DONGQIANG
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