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A liquid ethane pipeline valve chamber discharge system and method

A pipeline valve and venting system technology, applied in pipeline systems, gas/liquid distribution and storage, mechanical equipment, etc., can solve problems such as the lack of construction of long-distance liquid ethane pipelines, and the lack of reports on valve chamber design and research progress. Achieve the effect of reducing on-site installation work, good economy, and reducing the total investment of the project

Active Publication Date: 2021-06-29
CHINA PETROLEUM ENG & CONSTR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the liquid ethane pipeline has great prospects, the construction of long-distance liquid ethane pipelines has not yet been carried out in China
At the same time, related research mainly focuses on the liquid ethane pipeline transportation process, and the detailed valve chamber design and research progress have not been reported yet.

Method used

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  • A liquid ethane pipeline valve chamber discharge system and method

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Embodiment Construction

[0030] Liquid ethane pipe valve room discharge system, such as figure 1 As shown, mainly include: upstream buried trunk 1, trunk truncation valve 2, downstream buried trunk 3, pressure transmitter 4 / 6, temperature transmitter 5 / 7, bypass truncation valve 8 / 9, bypass replacement Valve 10 / 11, upstream bypass conduit 12, downstream bypass pipe 13, bypass extension branch 14, branch tube truncation valve 15, branching valve 16, branch tube flange 17, docking flange 18, high pressure hose 19, air conditioning The valve 20, the size head 21, the vent line 23, the fire detector 24, and take off the torch 25.

[0031] Among them, the upstream buried trunk 1, the trunk truncation valve 2, the downstream buried trunk 3 constitutes a valve chamber trunk system, which is responsible for connecting upstream pipes to form a liquid ethane delivery passage; the trunk truncation valve 2 is responsible for the pipe communication or truncation.

[0032] Specifically, the upstream buried trunk 1 and ...

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Abstract

The invention discloses a liquid ethane pipeline valve chamber discharge system and method. The system includes a valve chamber main line system, a valve chamber bypass system, a bypass extension branch pipe system, a movable venting system and a main line pipeline temperature detection system. Compared with the prior art, the positive effects of the present invention are: according to the characteristics of the present invention, which is easy to produce lower temperature in the pipeline body and the venting system during the discharge process after the liquid ethane pipeline is shut down, according to the operation safety and material selection economy, The planned venting process of the ethane pipeline valve chamber is optimized by setting the main line temperature detection system, bypass extension branch pipe system and movable venting system to achieve the effect of safe and economical operation.

Description

Technical field [0001] The present invention relates to a liquid ethane pipe valve chamber bleed system and method. Background technique [0002] As natural gas treatment process development and natural gas efficient use technology development, the energy of ethane in natural gas is constantly increasing, and its long-distance delivery technology needs to be vigorously developed. Ethane products are a class of molar temperatures as natural gas attachment, and the saturated vapor pressure is higher. The critical temperature is approximately 32 ° C, and the critical pressure is about 4.5 MPa, and therefore there is a single phase delivery in a gas phase or liquid phase state. Compared to gaseous ethane pipe delivery, liquid conveying has a small tube diameter, high transport efficiency, and is suitable for the size of ethane, and network transmission. [0003] In order to ensure the maintenance of pipeline segmentation, the maintenance is convenient, reduce the discharge of the mai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17D3/01F17D5/00
CPCF17D3/01F17D5/00
Inventor 陈俊文汤晓勇郭成华谌贵宇郭艳林杨帆
Owner CHINA PETROLEUM ENG & CONSTR
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