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Environmentally-friendly cleaning agent and preparation method thereof

A cleaning agent and environment-friendly technology, applied in the field of environment-friendly cleaning agent for nuclear power equipment cleaning and its preparation, can solve the problems of fast volatilization, difficulty in purchasing, poor safety, etc., and achieve the effect of strong cleaning ability and high safety

Active Publication Date: 2012-10-24
SHANGHAI JIUSHENG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, acetone is used to clean nuclear power equipment, but acetone is a flammable liquid, which volatilizes quickly and has poor safety; at the same time, it is a precursor drug, which is difficult to purchase and strictly kept; and it needs to be cleaned under the action of external force, which is time-consuming and labor-intensive.

Method used

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  • Environmentally-friendly cleaning agent and preparation method thereof
  • Environmentally-friendly cleaning agent and preparation method thereof
  • Environmentally-friendly cleaning agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Hydrocarbon solvents D60 and D80 in different proportions affect the drying rate. (mass fraction%)

[0030] Experimental method: spread a certain amount (0.1g) of hydrocarbon solvent evenly on a certain area (7850mm 2 ) on a watch glass, put it in a blast oven at 25±1°C, record the drying time, and calculate the relative drying time.

[0031] Table 1: Drying time of different ratios of D60 and D80

[0032]

[0033] It can be seen from Table 1 that the volatilization rate of D60 is faster than that of D80. Adding a small amount of D80 to D60 can slow down the solvent drying rate. When the cleaning agent is in the washing tank, it is hoped that the cleaning agent will volatilize slowly to reduce the loss of cleaning agent and improve safety at the same time. After the parts are taken out of the dipping tank, it is desired to dry faster to reduce the drying time and prevent secondary pollution caused by too long drying time.

Embodiment 2

[0035] Sometimes, there are fire points around the cleaning tank. At this time, in order to consider production safety, it is necessary to further reduce the volatility of the solvent, and at the same time consider the viscosity of the solvent to reduce the adhesion to the equipment. Experiment (table 2 is an excerpt of part of the experimental data, and the proportioning is mass percentage)

[0036] Table 2: Effects of different ratios of D60, D80, and D100 on the volatilization rate and viscosity (volatility rate: butyl acetate = 100)

[0037] Hydrocarbon solvent name

Embodiment 3

[0038] Example 3: Influence of cleaning and drying speed of deep hole test blocks of nuclear power equipment.

[0039] In order to achieve the ideal drying speed and obtain a satisfactory ratio, a cleaning and drying test of deep hole test blocks of nuclear power equipment was carried out.

[0040] Experimental method: Prepare a immersion tank and a nuclear power equipment deep-hole test block, first add hydrocarbon solvent into the immersion tank, then immerse the nuclear power equipment deep-hole test block, soak for 10 minutes, take it out, and dry it.

[0041] Table 3: Cleaning and drying of deep hole test blocks of nuclear power equipment (air temperature 12°C)

[0042]

[0043] Considering the test results of Table 1, Table 2, and Table 3 and the actual use, the normal usage amount: the ratio of hydrocarbon solvent D60:D80 is 8:1, which is more suitable. In special cases, the ratio of hydrocarbon solvent D100:D80 is 8:1 is more appropriate.

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Abstract

The invention discloses an environmentally-friendly cleaning agent and a preparation method thereof. The environmentally-friendly cleaning agent is prepared from a high-purity hydrocarbon solvent D60, a high-purity hydrocarbon solvent D80, ethylene glycol butyl ether, isooctanol, n-octanol, dimethyl glutarate, dimethyl succinate and dimethyl adipate. The invention also discloses a preparation method of the environmentally-friendly cleaning agent. Compared with the existing acetone cleaning agent, the environmentally-friendly cleaning agent has the advantages of high safety, strong cleaning capability, no element harmful to nuclear power equipment, no corrosivity and no production of ozone depleting substances (ODS).

Description

technical field [0001] The invention relates to the field of environment-friendly cleaning agents, in particular to an environment-friendly cleaning agent used for cleaning nuclear power equipment and a preparation method thereof. Background technique [0002] During the manufacturing process of nuclear power equipment, it will be polluted by dust, oil, etc., and needs to be cleaned; at the same time, the metal anti-rust oil and metal anti-rust hard film painted on the surface of nuclear power equipment parts also need to be cleaned before further manufacturing. Cleaning can ensure the cleanliness of nuclear power equipment and meet the requirements of nuclear power pollution prevention. [0003] During the use of nuclear power equipment, it will be polluted by dust and other pollutants. During operation for a period of time or maintenance, the equipment needs to be cleaned to ensure clean operation of nuclear power equipment. [0004] The dirt on general nuclear power equi...

Claims

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Application Information

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IPC IPC(8): C23G5/032
Inventor 徐海景朱荣龙
Owner SHANGHAI JIUSHENG IND
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