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Degreasing cleaning agent for plate heat exchanger and preparing of degreasing cleaning agent

A plate heat exchanger, degreasing and cleaning technology, applied in the field of metal protection treatment, can solve the problems of staying in machinery, high-pressure water, chemical pickling, easy rusting of metal parts, affecting energy consumption of enterprises, etc., to alleviate the alternation of cold and heat Or long-term high temperature damage, corrosion inhibition performance improvement, good cleaning effect

Inactive Publication Date: 2017-08-25
ANHUI PROPELLENT HEAT TRANSFER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Affected by traditional thinking concepts and the lack of cleaning technology resources and other factors, most enterprises and individuals still remain in the traditional "destructive" methods such as mechanical, high-pressure water, chemical pickling, etc. In terms of technology and concepts; and simply think that equipment cleaning will only be considered when it seriously affects production. It does not know that the generation of scale is constantly affecting the energy consumption of enterprises and devouring profits of enterprises
Moreover, in order to reduce the cost of cleaning alone, a cleaning method that damages and corrodes the equipment is chosen, resulting in leakage or even scrapping of the heat exchanger and stagnation of production, and the cost is hundreds or even thousands of times higher than that of cleaning agents.
At present, petroleum solvents are mostly used to clean parts in heat treatment machining and maintenance and repair of auto parts, which is easy to clean off the dirt on the metal surface, but it is flammable, harmful to the human body, serious pollution, and the metal parts after cleaning It is easy to rust, so it is urgent to develop a new type of metal degreasing cleaning agent with high efficiency, no pollution, strong descaling and protection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A degreasing cleaning agent for plate heat exchangers, made of the following parts by mass: 10 parts of triethanolamine oleate, 4 parts of EDTA sodium salt, 6 parts of alkaline water, 10 parts of higher alcohol, 3 parts of perfluoroalkyl and acrylate , 1.5 parts of bishydroxyethylamine, 2 parts of sodium pyrophosphate, 3 parts of sodium gluconate, 0.6 parts of silicone defoamer, and appropriate amount of deionized water.

[0022] The preparation of a degreasing cleaning agent for a plate heat exchanger is characterized in that the steps are as follows:

[0023] 1) Weigh raw materials by weight, add appropriate amount of deionized water to sodium pyrophosphate and sodium gluconate and stir until completely dissolved, then add organic silicon defoamer to them, raise the temperature to 45°C, stir and react for 35min to obtain a mixture ;

[0024] 2) Blend EDTA sodium salt and mixture 1, heat up to 65°C, add alkaline water dropwise thereto under stirring condition, and obt...

Embodiment 2

[0029] A degreasing cleaning agent for plate heat exchangers, made of the following parts by mass: 8 parts of triethanolamine oleate, 8 parts of EDTA sodium salt, 7 parts of alkaline water, 12 parts of higher alcohol, 2 parts of perfluoroalkyl and acrylate , 2 parts of bishydroxyethylamine, 1 part of sodium pyrophosphate, 2 parts of sodium gluconate, 0.5 part of silicone defoamer, and appropriate amount of deionized water.

[0030] The preparation of a degreasing cleaning agent for a plate heat exchanger is characterized in that the steps are as follows:

[0031] 1) Weigh raw materials by weight, add appropriate amount of deionized water to sodium pyrophosphate and sodium gluconate and stir until completely dissolved, then add organic silicon defoamer to them, raise the temperature to 45°C, stir and react for 40 minutes to obtain a mixture ;

[0032] 2) Blend EDTA sodium salt and mixture 1, heat up to 65°C, add alkaline water dropwise thereto under stirring condition, and obt...

Embodiment 3

[0037] A degreasing cleaning agent for plate heat exchangers, made of the following parts by mass: 5 parts of triethanolamine oleate, 6 parts of EDTA sodium salt, 3 parts of alkaline water, 14 parts of higher alcohol, 2 parts of perfluoroalkyl and acrylate , 2 parts of bishydroxyethylamine, 4 parts of sodium pyrophosphate, 4 parts of sodium gluconate, 0.7 parts of silicone defoamer, and appropriate amount of deionized water.

[0038] The preparation of a degreasing cleaning agent for a plate heat exchanger is characterized in that the steps are as follows:

[0039] 1) Weigh the raw materials in parts by weight, add an appropriate amount of deionized water to sodium pyrophosphate and sodium gluconate and stir until completely dissolved, then add silicone defoamer to it, raise the temperature to 45°C, and stir for 30 minutes to obtain a mixture ;

[0040] 2) Blend EDTA sodium salt and mixture 1, heat up to 70°C, add alkaline water dropwise thereto under stirring condition, and ...

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PUM

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Abstract

The invention provides a degreasing cleaning agent for a plate heat exchanger and preparing of the degreasing cleaning agent. The degreasing cleaning agent comprises, by mass, 5-10 parts of triethanolamine oleate, 4-6 parts of EDTA sodium salt, 3-7 parts of water containing soda, 8-14 parts of higher alcohols, 1-3 parts of perfluoroalkyl group and acrylic ester, 0.5-2 parts of dihydroxyethyl amine, 1-4 parts of sodium pyrophosphate, 2-4 parts of sodium gluconate, 0.5-0.8 part of an organic silicon defoamer and an appropriate amount of deionized water; the raw materials are mixed, heated, stirred and the like to prepare the degreasing cleaning agent; and the prepared cleaning agent is high in degrease removal rate and high in antifouling and dirt-preventing performance, a certain corrosion inhibition and protection effect is achieved, the contact performance between the agent and the plate heat exchanger is good, the good washing effect is achieved, and the washing efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of metal protection treatment, in particular to a degreasing cleaning agent for plate heat exchangers and its preparation. Background technique [0002] Affected by factors such as traditional thinking and lack of cleaning technology resources, most companies and individuals still remain in the traditional "destructive" methods of mechanical, high-pressure water, chemical pickling, etc. In terms of technology and concepts; and simply think that equipment cleaning will only be considered when it seriously affects production. It does not know that the generation of scale is constantly affecting the energy consumption of enterprises and swallowing the profits of enterprises. Moreover, in order to reduce the cost of cleaning alone, a cleaning method that damages and corrodes the equipment is chosen, resulting in leakage or even scrapping of the heat exchanger and stagnation of production, and the price is hundre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/18
CPCC23G1/18
Inventor 张凌霞
Owner ANHUI PROPELLENT HEAT TRANSFER TECH CO LTD
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