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Analysis testing method for foam characteristic excess reason of power steam turbine engine oil

A technology of steam turbine oil and test method, applied in the direction of material inspection products, etc., can solve the problems of excessive foam, accelerated oil deterioration speed, poor oil addition effect, etc.

Inactive Publication Date: 2015-05-13
XIAN THERMAL POWER RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The foam characteristics in the oil exceed the standard, and the air entrained in the oil will not only accelerate the deterioration of the oil, but also affect the safe operation of the unit
There is no test method for analyzing the cause of foam exceeding the standard before, so it is impossible to solve the problem from the root cause of the foam exceeding the standard in steam turbine oil. Generally, only the measure of adding defoamer to the turbine oil is taken. However, for most units, the oil addition effect Poor, and the foam will exceed the standard again in a short period of time, so many unit oil foam problems have not been fundamentally resolved repeatedly, and have become a technical problem in this field for a long time

Method used

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  • Analysis testing method for foam characteristic excess reason of power steam turbine engine oil
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  • Analysis testing method for foam characteristic excess reason of power steam turbine engine oil

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] According to step 1 of the present invention, get the steam turbine oil sample that the foam characteristic of A power plant exceeds the standard, the microporous polarity inducing adsorbent and this oil sample mass ratio are respectively 1:100, 2:100, 4:100, 6:100, 8 :100, 10:100 oil samples, stirred at 60°C for 45 minutes, filtered, removed the adsorbent and retained the processed samples, and measured their foam characteristic indicators respectively. The test results are shown in Table 1.

[0017] Table 1A Comparison of foam characteristic index results of oil products before and after treatment with adsorbent in power plant turbine oil

[0018]

[0019] According to the above test data, after the regeneration treatment test with the mass ratio of adsorbent to sample at 4:100, the problem of excessive foam of the sample was completely solved. Therefore, it can be determined that the excessive oil foam of the steam turbine in power plant A is affected by the dete...

Embodiment 2

[0021] According to step 1 of the present invention, get the steam turbine oil sample that B power plant foam characteristic exceeds standard, respectively microporous polarity inducing adsorbent and this oil sample mass ratio are 1:100, 2:100, 4:100, 6:100, 8 :100, 10:100 oil samples, stirred at 60°C for 45 minutes, filtered, removed the adsorbent and retained the processed samples, and measured their foam characteristic indicators respectively. The test results are shown in Table 2.

[0022] Table 2B Comparison of the results of the foam characteristics of the oil before and after the treatment of the turbine oil in the power plant

[0023]

[0024] According to the above test results, the problem of excessive foam characteristics of steam turbine oil in power plant B has not been completely solved, but the foam characteristic indicators have improved. According to the analysis method introduced in the present invention, according to step 2 of the present invention, add ...

Embodiment 3

[0029] According to step 1 of the present invention, get the steam turbine oil sample that C power plant foam characteristic exceeds standard, respectively microporous polarity inducing adsorbent and this oil sample mass ratio are 1:100, 2:100, 4:100, 6:100,8 :100, 10:100 oil samples, stirred at 60°C for 45 minutes, filtered, removed the adsorbent and retained the processed samples, and measured their foam characteristic indicators respectively. The test results are shown in Table 4.

[0030] Table 4C Comparison of the results of the foam characteristics of the oil before and after the treatment of the steam turbine oil in the power plant

[0031]

[0032] According to the above test results, the turbine oil of C power plant is slightly improved after being treated with adsorbent, but not obviously. According to the analysis method introduced in the present invention, according to step 2 of the present invention, add 30ppm, 60ppm, 90ppm non-silicon high-efficiency defoamer...

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Abstract

The invention provides an analysis testing method for foam characteristic excess reason of a power steam turbineengine oil. The analysis testing method comprises the two steps: after regenerating the steam turbine engine oil with exceed foam characteristic, detecting the foam characteristic index and detecting the foam characteristic index after a defoaming agent is added. According to the analysis method, the following three reasons for the excessive foam characteristic of the power steam turbine engine oil are one of 1. the influence of degraded products, generated due to deterioration of oil quality, on the foam characteristic; 2. the common influence from the degradation products contained in the oil and the missing of the defoaming agent; and 3. loss of the defoaming agent. The analysis testing method is simple and convenient, mild in conditions, easy to operate, accurate in results, and suitable for analyzing the foam characteristic excess reason of a power steam turbineengine oil, so that the optimal solution for the characteristic excess reason of a power steam turbineengine oil can be determined.

Description

technical field [0001] The invention belongs to the technical field of steam turbine oil analysis for electric power, and in particular relates to a test method for analyzing the cause of excessive foam characteristics of steam turbine oil for electric power. Background technique [0002] Turbine oil, also known as turbine oil, usually includes steam turbine oil, gas turbine oil, hydraulic turbine oil and oxygen-resistant turbine oil, etc. It is mainly used for sliding bearings, reduction gears and governors of steam turbines and associated units. The role of steam turbine oil is mainly lubrication and cooling. [0003] It is common for generator sets to have the problem that the foam characteristics of steam turbine oil exceed the standard. The foam characteristics in the oil exceed the standard, and the air entrained in the oil will not only accelerate the deterioration of the oil, but also affect the safe operation of the unit. There is no test method for analyzing the ...

Claims

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Application Information

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IPC IPC(8): G01N33/30
Inventor 李烨峰王娟孙晓东刘永洛王笑微
Owner XIAN THERMAL POWER RES INST CO LTD
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