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Device and method for detecting and melting hydrates in natural gas pipeline

A technology for natural gas pipelines and hydrates, applied in pipeline systems, gas/liquid distribution and storage, special pipes, etc., can solve problems such as blockage of natural gas pipelines, achieve the effects of avoiding environmental pollution, realizing environmental protection operations, and reducing use

Active Publication Date: 2020-11-03
GUANGZHOU MARINE GEOLOGICAL SURVEY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of the prior art, one of the objectives of the present invention is to provide a device for detecting and dissolving hydrates in natural gas pipelines, which can solve the problem of hydrates blocking natural gas transmission pipelines
[0005] In order to overcome the deficiencies of the prior art, the second object of the present invention is to provide a method for detecting and dissolving hydrates in natural gas pipelines, which can solve the problem of hydrates blocking natural gas transmission pipelines

Method used

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  • Device and method for detecting and melting hydrates in natural gas pipeline
  • Device and method for detecting and melting hydrates in natural gas pipeline
  • Device and method for detecting and melting hydrates in natural gas pipeline

Examples

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Embodiment 1

[0041] Such as Figure 1-5 As shown, in this embodiment, a device for detecting and dissolving hydrates in natural gas pipelines includes several transmission mechanisms 1 for moving along natural gas inner pipelines 42, and a detection mechanism for detecting hydrates in natural gas pipelines. 2. The ablation mechanism 3 and controller for ablation of hydrates. Specifically, the transmission mechanism 1 includes a transmission frame 13, several universal wheel assemblies 11 that have static friction with the outer wall of the natural gas inner pipeline 42, a drive assembly 12 and elastic Connector 5, wherein the transmission frame 13 is not limited to a circle, it can also be a triangle, direction, etc., preferably, the transmission frame 13 includes an upper frame 131, a lower frame 132 and a hydraulic connector 133, so The above-mentioned upper frame 131 is connected with the lower frame 132 through the hydraulic connector 133, and the hydraulic connector 133 is connected w...

Embodiment 2

[0045] Such as Image 6 As shown, a method for detecting and dissolving hydrates in natural gas pipelines is applied to the controller of the device for detecting and dissolving hydrates in natural gas pipelines described in Embodiment 1. The controller includes a storage and processor;

[0046] memory for storing program instructions;

[0047] a processor for executing the program instructions to perform the following steps:

[0048] S1: adjust the gap between the upper frame 131 and the lower frame 132 through the hydraulic connector 133, and generate static friction between the universal roller 112 driven by the hydraulic rod 111 and the outer surface of the natural gas inner pipeline 42;

[0049] Specifically, before putting the device for detecting and abating hydrate in the natural gas pipeline 4 into the natural gas pipeline 4, first adjust the gap between the upper frame 131 and the lower frame 132 through the hydraulic connector 133, that is, through the hydraulic c...

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PUM

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Abstract

The invention discloses a device and method for detecting and melting hydrates in a natural gas pipeline. The device comprises transmission mechanisms, a detecting mechanism and a melting mechanism. The detecting mechanism and the melting mechanism are both connected with the transmission mechanisms through elastic connecting pieces, so that the device can smoothly pass through the corner in the natural gas pipeline, meanwhile, the transmission mechanisms comprise universal wheel assemblies, and the universal wheel assemblies and the outer wall of an inner pipeline of the natural gas pipelineform static friction so that the device can move along the inner pipeline of the natural gas pipeline, further, the detecting mechanism detects the temperature situation of the natural gas pipeline tojudge whether the hydrates are generated in the natural gas pipeline to block the pipeline or not, and then the blocked position is heated by the melting mechanism so as to melt the hydrates.

Description

technical field [0001] The invention relates to the technical field of natural gas hydrate detection, in particular to a device and method for detecting and eliminating hydrates in natural gas pipelines. Background technique [0002] With the continuous deepening of offshore oil and gas development, especially in 2017 and 2020, China successfully realized the trial production of natural gas hydrate in the sea area twice, and it is expected that the commercial development of natural gas hydrate will be realized in 2030, which puts higher demands on the offshore production system. skills requirement. Natural gas is easy to form solid natural gas hydrate in the low-temperature and high-pressure seabed environment. When natural gas or natural gas hydrate is exploited, due to interruption of transmission or gas retention at pipeline joints or corners, solid crystallization of natural gas hydrate may be formed, resulting in Pipeline blockage may even threaten the safe operation o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/32F16L55/40F17D5/00F16L101/10F16L101/30
CPCF16L55/32F16L55/40F17D5/005F16L2101/10F16L2101/30
Inventor 吴婷婷尉建功
Owner GUANGZHOU MARINE GEOLOGICAL SURVEY