Method for judging oil leakage of benzene hydrogenation heat conduction oil heat supply system

A heat supply system and heat transfer oil technology, which can be used to detect the appearance of fluid at the leakage point, test the fluid tightness, test the machine/structural components, etc., can solve the problem of slow maintenance efficiency and the leakage of heat transfer oil heating system Difficulty and other issues

Pending Publication Date: 2021-02-02
安徽马钢化工能源科技有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0006] Aiming at the problems of difficulty in troubleshooting and slow maintenance efficiency in the heat transfer oil heating system in the prior art, the present invention provides a method for judging oil leakage in the heat transfer oil heating system of benzene hydrogenation

Method used

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  • Method for judging oil leakage of benzene hydrogenation heat conduction oil heat supply system

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Experimental program
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Effect test

Embodiment 1

[0043] Such as figure 1 As shown, a method for judging oil leakage of a benzene hydrogenation heat transfer oil heating system comprises the following steps:

[0044] S1: Determine whether the liquid level of the expansion tank in the heat transfer oil heating system is lowered, and if it is lower, proceed to the next step; because the entire heat transfer oil heating system is an internal circulation system, the content of the heat transfer oil is relatively stable, and the expansion tank and the heat transfer oil main pipe Connect, so the liquid level in the expansion tank decreases, which indicates that there is oil leakage in the system, so a preliminary judgment of leakage is made through the expansion tank;

[0045] S2: Sampling and analyzing the substance in each reboiler in the heat transfer oil heating system to determine the specific leaking reboiler; specifically, when the boiling point of the substance in the reboiler is higher than or equal to the boiling point of...

Embodiment 2

[0061] Basically the same as in Embodiment 1, in order to ensure the accurate performance of the judgment of the entire heat transfer oil heating system, a liquid level sensor is installed in the expansion tank in step S1 in this implementation, the liquid level sensor is electrically connected to the PLC control system, and the liquid level sensor detects the expansion The liquid level signal in the tank is fed back to the PLC control system, the operator can observe the liquid level of the expansion tank through the PLC control system, the data feedback is accurate and the feedback efficiency is high; further, the outer surface of the liquid level sensor is set There is a protective cover, and the setting of the protective cover can ensure that the liquid level sensor is not disturbed by the external environment, and further ensure the stability of the liquid level sensor. In order to facilitate the sampling of each reboiler, a sampling port is provided on each reboiler, whic...

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Abstract

The invention discloses a method for judging oil leakage of a benzene hydrogenation heat conduction oil heat supply system, and belongs to the field of heat supply equipment detection. Aiming at the problems of difficult leakage troubleshooting and low maintenance efficiency of the existing heat-conducting oil heat supply system, the invention provides a method for judging oil leakage of a benzenehydrogenation heat-conducting oil heat supply system, which comprises the following steps of: judging whether the liquid level of an expansion tank in the heat-conducting oil heat supply system is reduced or not; sampling and analyzing substances in each reboiler in the heat conduction oil heat supply system; sampling leaked substances at the bottom of the reboiler, carrying out a distillation experiment on the sample, and calculating the distillation rate; and stopping production of the reboiler with determined leakage to determine leakage of a specific tube bundle in the reboiler. Accordingto the invention, each reboiler substance is analyzed according to the liquid level drop of the expansion tank so as to carry out targeted determination on the leakage position, and the leakage of the heat conduction oil is judged by combining a chemical mode and a mechanical detection mode, so that the leakage condition can be quickly and quantitatively judged, the maintenance time is greatly shortened, and the working efficiency is improved.

Description

technical field [0001] The invention belongs to the field of heating equipment detection, and more specifically relates to a method for judging oil leakage of a heat supply system for benzene hydrogenated heat transfer oil. Background technique [0002] The benzene hydrogenation heating system uses heat transfer oil Therminol 55 (T-55) as the heat transfer medium, and the high temperature heat transfer oil is forced to circulate through the circulation pump to the hydrogenation unit and the reboiler of each device in the extraction unit for exchange and heat supply. The heat supply users of the heat transfer oil in the benzene hydrogenation heating system are the reboiler of the stabilization tower, the reboiler of the extraction tower, the reboiler of the recovery tower and the reboiler of the triphenyl tower. The benzene hydrogenation heating system has been running for a long time, and there are different degrees of corrosion and leakage inside the reboiler, resulting in ...

Claims

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Application Information

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IPC IPC(8): G01M3/08
CPCG01M3/083
Inventor 姜涛黄贤弟沈立嵩邱高平徐浩金年生尹德祥洪骏
Owner 安徽马钢化工能源科技有限公司
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