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Expanding temperature measuring head for buried pipeline

A technology of buried pipelines and temperature measuring heads, applied in thermometers, measuring devices, measuring heat, etc., can solve problems such as too late to deal with, safety, hidden dangers of economical operation, and unreliability

Active Publication Date: 2007-11-14
PIPECHINA SOUTH CHINA CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Under normal circumstances, doing so can achieve economical and safe operation, and decades of practice have proved this; but when unexpected situations occur, calculation and experience are not reliable, or it will be too late to deal with them. It will bring great hidden dangers to safety and economic operation.

Method used

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  • Expanding temperature measuring head for buried pipeline

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Embodiment Construction

[0019] The invention will be further described below with a specific embodiment. The overall structure of this example is shown in Figure 1, which is a temperature measuring head for a φ325mm pipeline. Its main dimensions are that the total length of the temperature measuring head is 510mm, the diameter of the pipe is φ25mm, the front end has a 10mm plug, and the tail flange diameter is 75mm. A small hole; the isolation valve 12 is a ball valve with an inlet and outlet diameter of 25mm, the model is YQ71F-64DN25, and the total length of the temperature measuring head installation shell 13 is 200mm; the pressure relief valve 16 is selected as J11W-16P DN15; the connecting rod of the temperature measuring head is 10 φ30mm, length 1045mm, pipe wall thickness 5mm, and 350mm long external thread from the end to the front; casing 11 is a round steel pipe of φ80×408×5mm, and the rear end flange 9 is φ100×37mm; small casing 20 It is a φ60×100×5mm steel pipe, the rear end flange is φ1...

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Abstract

The present invention relates to a telescopic temperature-measuring head for measuring transmission medium temperature of buried pipeline. It is characterized by that after the tail portion of temperature-measuring head inserted into the pipeline from the temperature-measuring head mounting shell body fixedly connected with exterior of pipeline is passed through isolation valve, it is series-connected with spacing mechanism and movement mechanism, it can make pipe scraper or detector smoothly pass through and can ensure safety of the temperature-measuring head.

Description

technical field [0001] The invention relates to a telescopic temperature measuring head used for measuring the temperature of a conveying medium in a buried pipeline. It relates to the field of temperature measurement and piping system technology. Background technique [0002] The temperature of the medium transported by buried pipelines, especially buried crude oil pipelines, is an important parameter for operation scheduling and a decisive factor for economical and safe operation. Therefore, it is necessary to keep track of the temperature of each point of the transported medium in the pipeline at any time. In the past, no temperature measuring device was installed on the buried pipeline, but the temperature of the medium was only controlled by calculation and experience. Under normal circumstances, doing so can achieve economical and safe operation, and decades of practice have proved this; but when unexpected situations occur, calculation and experience are not reliable...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K13/02G01K1/14G01K1/08
Inventor 张立新李建廷熊辉杨四云
Owner PIPECHINA SOUTH CHINA CO
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