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Acidic cleaning agent and application thereof in cleaning of cooling fins of air conditioners of railway bullet trains

An acid cleaning agent and cooling fin technology, applied in the field of industrial cleaning, can solve the problems of corrosive aluminum air-conditioning cooling fins, low ability to remove oily dirt, weak ability to remove inorganic dirt, etc., to achieve efficient removal of dirt and appearance Uniform, floc-free use properties

Pending Publication Date: 2021-08-24
TAISHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the acidic cleaning agent has strong cleaning ability but the ability to remove oily dirt is not high, and it is prone to corrosion, which is not conducive to protecting the internal parts of the locomotive; the alkaline cleaning agent foams slowly, the cleaning efficiency is low, the product performance is unstable, and it is easy to delaminate , and is also easy to corrode aluminum air-conditioning cooling fins; neutral cleaning agents are generally surfactant solutions, which have a strong ability to remove oily dirt, but weaker ability to remove inorganic dirt

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0039] The third embodiment of the present invention provides an application of the above-mentioned acid cleaning agent in the cleaning of air-conditioning cooling fins of railway passenger cars.

[0040] The fourth embodiment of the present invention provides a method for cleaning the air-conditioning cooling fins of railway passenger cars. The above-mentioned acid cleaning agent is diluted, and the diluted acid cleaning agent is sprayed on the cooling fins of railway moving passenger cars for cleaning. Rinse with water or blow dry after a certain period of time.

[0041] In some examples of this embodiment, water is used to pre-clean the cooling fins of the air conditioner of the railway passenger car, and then a diluted acid cleaning agent is used for cleaning. The pre-cleaning time is 10-20s. The cleaning time with diluted acidic cleaning agent is 5-10s.

[0042] In some examples of this embodiment, during the dilution process, the volume ratio of the acid cleaning agent...

Embodiment 1

[0047] (1) Preparation of acid cleaning agent

[0048] A cleaning agent suitable for heat dissipation fins of air conditioners of motor vehicles, including 1.0% of cleaning components, 1.0% of corrosion and scale inhibition components, 0.2% of surface active components, and 0.2% of other additives including dispersants by weight %, penetrant 0.2%, defoamer 0.1%, water 97.3%.

[0049] The cleaning components in this example include nitric acid, citric acid, and oxalic acid, with a total weight fraction of 1.0%, and their weight ratio is 2:1:1; the corrosion and scale inhibition components include urotropine, aniline, and dicarboxylated imidazoles Phenyl derivatives, the total weight fraction is 1.0%, and its weight ratio is 2:1:1; the surface active components include cationic alkyl glycoside, sodium lauryl polyoxyethylene ether sulfate and polyol phosphate, the total weight fraction is 0.2 %, its weight ratio is 2:1:1; other additives are dispersant polyanionic sodium cellulo...

Embodiment 2

[0055] (1) Preparation of acid cleaning agent

[0056] A cleaning agent suitable for heat dissipation fins of air conditioners of motor vehicles, including 2.0% of cleaning components, 1.5% of corrosion and scale inhibition components, 0.4% of surface active components, and 0.4% of other additives including dispersants by weight %, penetrant 0.2%, defoamer 0.1%, water 95.4%.

[0057] The cleaning components in this example include nitric acid, citric acid, and oxalic acid, with a total weight fraction of 2.0%, and their weight ratio is 2:1:1; the corrosion and scale inhibition components include urotropine, aniline, and dicarboxylated imidazole Phenyl derivatives, the total weight fraction is 1.5%, and its weight ratio is 1:1:1; the surface active components include cationic alkyl glycoside, sodium lauryl polyoxyethylene ether sulfate and polyol phosphate, the total weight fraction is 0.4 %, its weight ratio is 2:1:1; other additives are dispersant polyanionic sodium cellulos...

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Abstract

The invention discloses an acidic cleaning agent and application thereof in cleaning of cooling fins of air conditioners of railway bullet trains. The acidic cleaning agent comprises the following components in percentage by mass: 1.0-5.0% of cleaning components, 1.0-3.0% of corrosion and scale inhibition components, 0.2-2.0% of surface active components, 0.5-1.0% of an auxiliary agent and the balance water; the cleaning components include inorganic acid and organic acid; the corrosion and scale inhibition components include aniline, urotropine and a dicarboxylation imidazoline derivative; the surface active components include cationic alkyl glycoside, lauryl polyoxyethylene ether sodium sulfate and polyol phosphate; and the auxiliary agent is a dispersing agent which is polyanionic cellulose sodium. The acid cleaning agent provided by the invention has the advantages of high efficiency, easiness in rinsing, low residue, high stability and the like when being used for cleaning the cooling fins of the air conditioners of the railway bullet trains.

Description

technical field [0001] The invention belongs to the field of industrial cleaning, and relates to an acid cleaning agent and its application in cleaning cooling fins of air-conditioning of railway passenger cars. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] The rapid development of my country's railway industry has driven the vigorous operation of the national economy, accompanied by the increasing demand for daily maintenance of railway passenger cars. Air conditioning is an essential component of railway passenger cars. After the railway passenger cars have been running for a period of time, dirt will be generated on the aluminum cooling fins that are in contact with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/12C23G1/06
CPCC23G1/125C23G1/061C23G1/063
Inventor 张翠娟
Owner TAISHAN UNIV
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