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A method for evaluating the comprehensive performance of heat transfer oil

A comprehensive performance, heat transfer oil technology, applied in the direction of material thermal analysis, instruments, measuring devices, etc., can solve the problem of heat transfer oil can not be safe, convenient and comprehensive evaluation of oil aging performance, to overcome the appearance and deterioration rate, safety The effect of improving the performance and increasing the kinematic viscosity

Active Publication Date: 2020-08-25
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It can be seen that the existing thermal stability evaluation method of heat transfer oil cannot realize the safe, convenient and comprehensive evaluation of oil aging performance, and it is urgent to establish an evaluation method for the comprehensive performance of heat transfer oil

Method used

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  • A method for evaluating the comprehensive performance of heat transfer oil
  • A method for evaluating the comprehensive performance of heat transfer oil
  • A method for evaluating the comprehensive performance of heat transfer oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The evaluation method of the heat transfer oil comprehensive performance described in the present embodiment comprises the following steps:

[0036] Fill the oil container with 1 / 2 of the total amount of samples in the container first, seal the oil container after passing nitrogen gas for 5 minutes, install a safety sleeve and place it in the constant temperature container 1. Start the constant temperature container and make the tested oil reach the set temperature and keep it at the set temperature, the set temperature is 330°C; after the temperature of the tested oil reaches the set temperature, start timing, after 1000h After the thermal stability simulation test is over, the samples after the test are treated with medical grinding wheels, and then placed in a low-temperature environment of -60°C for 12 hours, and then special tools (such as figure 2 ) After the safety opening is restored to room temperature, its kinematic viscosity, chroma, acid value, copper sheet...

Embodiment 2

[0040] Compared with Example 1, the difference is only that: the set temperature is 350°C, the high-temperature test time is 500h, and after the test is completed, it is placed in a low-temperature environment of -80°C for 12h to cool.

Embodiment 3

[0042] Compared with Example 1, the only differences are: the set temperature is 280°C, the high temperature test time is 2000h, and after the test is completed, it is placed in a low temperature environment of -40°C for 12h.

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Abstract

The invention provides a method for assessing comprehensive performance of heat conducting oil; a certain amount of nitrogen gas is introduced to to-be-tested heat conducting oil, after sealing, a high temperature test is carried out for 500 h-2000 h under a condition of the temperature of 280 DEG C-350 DEG C, then the heat conducting oil is placed at a low temperature environment of -40 DEG to -80 DEG C and cooled for 12 h, a mouth is safely opened by a special tool, after the temperature is restored to room temperature, the kinematic viscosity, chroma, acid value, the deterioration rate and other various properties of the heat conducting oil are determined, and according to the changes of the performance of the to-be-tested heat conducting oil before and after the test, the comprehensive performance of the heat conducting oil is objectively assessed. The method for assessing the comprehensive performance of the heat conducting oil can safely, conveniently and comprehensively assess oil products.

Description

technical field [0001] The invention relates to a method for testing the performance of heat-conducting oil, in particular to a safe, convenient and comprehensive evaluation method for the comprehensive performance of heat-conducting oil. Background technique [0002] With the progress and development of heat transfer technology, heat transfer oil with high boiling point, low system operating pressure, stable chemical properties and excellent thermal stability can be used more and more widely. Since the heat transfer oil is mostly used under high temperature conditions and is used in a large amount, it is difficult to make a simple and appropriate evaluation of its life at present, and it is mostly supplemented or partially replaced according to the consumption of the system. With the continuous development of new technologies, it becomes possible to establish a safe, convenient and comprehensive method for evaluating the aging of heat transfer oil. This is very important f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/00
CPCG01N25/00
Inventor 韦安柱李万英陈惠卿贾德强汤涛刘卜瑜付丽雪王向阳薛玉苓
Owner CHINA PETROLEUM & CHEM CORP