Air conditioner aluminum fin weak alkaline cleaner and cleaning method

A weak alkaline cleaning agent and aluminum fin technology, which is applied in the field of weak alkaline cleaning agent and cleaning of air-conditioning aluminum fins, can solve the problems of mechanical equipment corrosion, acid mist, peeling, etc., achieve low cost and increase permeability Effect

Inactive Publication Date: 2018-05-04
DALIAN SANDAAOKE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

① Strong alkaline cleaning agent has a pungent smell when sprayed, which pollutes the environment of the operation site; ② Strong alkaline cleaning agent is extremely corrosive to human skin and easily burns the operator's skin; ③ Strong alkaline cleaning agent has a strong impact on paint The coating is highly corrosive, often causing paint discoloration, peeling, peeling, etc.; ④ strong alkaline cleaning agent has obvious corrosion on aluminum fins, and most aluminum fins will become thinner and brittle after four times of cleaning ,need to be updated
[0004] 2. The pickling method generally uses ultrasonic cleaning, and the cleaning effect is also different due to the different acidic additives used in the cleaning agent.
Some cleaning agents have a pungent smell, affecting the on-site operating environment; some produce acid mist, causing corrosion of workshop machinery and equipment; some are too corrosive, causing corrosion of stainless steel, copper pipes and ultrasonic cleaning tanks attached to the air conditioner

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Take citric acid 1%, sodium metasilicate pentahydrate 15%, sodium carbonate 0.1%, sodium gluconate 10%, octylphenol polyoxyethylene ether (9) 0.5%, dodecyl trihydroxyethyl ammonium chloride 10%, ethylene glycol 0.5%, add the above raw materials into water (add water to make the sum of the mass 100%) and stir to dissolve into a colorless transparent liquid.

[0017] The specific cleaning method is:

[0018] a. Disassemble the aluminum fins on the train air conditioner for separate cleaning;

[0019] b. The cleaning agent is made into an aqueous solution with a mass percentage of 10%. Hang the disassembled air-conditioning aluminum fins into the cleaning tank, soak them at room temperature for 30 minutes, and turn on ultrasonic cleaning for 30 minutes; place the air-conditioning aluminum fins in the water washing tank and use a high-pressure water gun Fully spray the surface and gaps of the aluminum fins of the air conditioner;

[0020] c. Leave to dry.

Embodiment 2

[0022] Take citric acid 5%, sodium metasilicate pentahydrate 0.1%, sodium carbonate 5%, sodium gluconate 0.1%, nonylphenol polyoxyethylene ether (9) 20%, dodecyl trihydroxyethyl ammonium chloride 0.5%, 1,2-propanediol 15%, add the above raw materials into water (add water to make the sum of the mass 100%) and stir to dissolve into a colorless transparent liquid.

[0023] The specific cleaning method is:

[0024] a. Disassemble the aluminum fins on the train air conditioner for separate cleaning;

[0025] b. The cleaning agent is made into an aqueous solution at 15% by mass, hang the disassembled air-conditioning aluminum fins into the cleaning tank, soak for 30 minutes at room temperature, and turn on ultrasonic cleaning for 10 minutes; place the air-conditioning aluminum fins in the water washing tank, and use high-pressure The water gun fully sprays the surface and gaps of the aluminum fins of the air conditioner;

[0026] c. Leave to dry.

Embodiment 3

[0028] Take citric acid 3%, sodium metasilicate pentahydrate 10%, sodium carbonate 3%, sodium gluconate 5%, lauryl polyoxyethylene ether (9) 10%, dodecyl trihydroxyethyl ammonium chloride 5 %, 8% isopropanol, add the above raw materials into water (add water to make the sum of the mass 100%) and stir to dissolve into a colorless transparent liquid.

[0029] The specific cleaning method is:

[0030] a. Disassemble the aluminum fins on the train air conditioner for separate cleaning;

[0031] b. The cleaning agent is made into an aqueous solution according to the mass percentage of 13%, and the disassembled air-conditioning aluminum fins are hoisted into the cleaning tank, soaked at room temperature for 30 minutes, and the ultrasonic cleaning is turned on for 20 minutes; The water gun fully sprays the surface and gaps of the aluminum fins of the air conditioner;

[0032] c. Leave to dry.

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PUM

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Abstract

The invention discloses an air conditioner aluminum fin weak alkaline cleaner which can evenly and thoroughly remove dirt, cannot generate high corrosion on aluminum fins, saves time and labor, and islow in cost, safe, reliable and free of pollution. The air conditioner aluminum fin weak alkaline cleaner comprises raw materials including, by mass percent, 1%-5% of citric acid, 0.1%-15% of sodiummetasilicate pentahydrate, 0.1%-5% of sodium carbonate, 0.1%-10% of sodium gluconate, 0.5%-20% of a non-ionic surface active agent, 0.5%-10% of a cationic surface active agent, 0.5%-15% of an oxygen bearing solvent and the balance water; and the pH value is 10.0-10.5. The cleaning method includes the following steps that the aluminum fins on an air conditioner in a train are detached; the cleaneris prepared into an aqueous solution according to the mass percent being 10%-15%, the detached aluminum fins are hoisted into a cleaning tank, soaking is carried out for 30 min at the normal temperature, ultrasonic cleaning is started to last for 10 min-30 min; the aluminum fins of the air conditioner are placed into a washing tank, a water torch is used for spraying and cleaning the surfaces of gaps of the aluminum fins of the air conditioner; and the aluminum fins are placed to be dried.

Description

technical field [0001] The invention relates to a cleaning agent and a cleaning method for cleaning an air conditioner, especially a cleaning agent that can remove dirt evenly and completely without causing strong corrosion to aluminum fins; it saves time and effort, is low in cost, is safe and reliable, and has no pollution Weak alkaline cleaning agent and cleaning method for air-conditioning aluminum fins. Background technique [0002] The air conditioner usually needs to be overhauled after running for a period of time, for example, the air conditioner needs to be overhauled after the train runs 20,000 to 30,000 kilometers. During maintenance, it is necessary to thoroughly clean the dirt on the surface of the aluminum fins in the air conditioner to improve the heat exchange capacity of the aluminum fins, thereby improving the heating and cooling efficiency of the air conditioner and prolonging the service life of the compressor. Parts are cleaned. At present, there are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G5/032
CPCC23G5/032
Inventor 吕栓锁
Owner DALIAN SANDAAOKE CHEM
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