CN101475878A - Cleaning agent and cleaning method for air conditioner - Google Patents
Cleaning agent and cleaning method for air conditioner Download PDFInfo
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- CN101475878A CN101475878A CNA2009100101209A CN200910010120A CN101475878A CN 101475878 A CN101475878 A CN 101475878A CN A2009100101209 A CNA2009100101209 A CN A2009100101209A CN 200910010120 A CN200910010120 A CN 200910010120A CN 101475878 A CN101475878 A CN 101475878A
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Abstract
The invention discloses a detergent and a cleaning method for a complete air-conditioner, which not only can uniformly and completely remove dirt but also cannot strongly corrupt components and parts such as aluminum, copper and stainless steel, are time-saving and labor saving, safe and reliable, and pollution-free, and have low cost. Raw materials of the detergent are at least two compositions of citric acid, inorganic weak acid and inorganic strong acid; a non-ionic surfactant or a non-ionic surfactant is mixed with an anionic surfactant; and the detergent comprises an oxygen solvent, an acid corrosion inhibitor, and the balance being water. The cleaning method comprises: disassembling a motor and a fan, and taking off the motor and the fan for independent cleaning; preparing the detergent into an aqueous solution according to the proportion of between 10 and 15 percent, hanging the complete air-conditioner after disassembly of the motor and the fan into a cleaning tank, soaking the complete air-conditioner for 30 minutes at normal temperature, and starting ultrasonic waves to clean for 10 to 30 minutes; placing the complete air-conditioner into a washing tank, and using a high-pressure water gun to spray the surface and the inside of the air-conditioner; and using hot blast to dry the air-conditioner at a temperature of 80 DEG C.
Description
Technical field:
The present invention relates to a kind of clean-out system and purging method that is used to clean air-conditioning, especially a kind of uniform and complete that gets final product is removed dirt, can not produce deep-etching to component such as aluminium, copper and stainless steels again; Time saving and energy saving, cost is low, safe and reliable, free of contamination air conditioner clean-out system and purging method.
Background technology:
Air-conditioning all will carry out the integral body maintenance to it usually after operation for some time.For example train just needs the maintenance air-conditioning behind operation 20,000 to 30,000 km mileages, need thoroughly to clean the dirt of aluminium fin surface in the air-conditioning during maintenance, to improve the heat-exchange capacity of aluminium fin, thereby improve the heating of air-conditioning, refrigerating efficiency, prolong the work-ing life of compressor, also need shell and other component of air-conditioning are cleaned simultaneously.At present, the cleaning for air-conditioning has alkali wash and acid wash dual mode, the problem of equal various degrees.
1. generally contain caustic soda 10～30% in the used clean-out system of alkali wash, an aqueous solution with strong basicity clean-out system stoste or 25～50% evenly is sprayed on the aluminium fin during cleaning, stops 5min, again with the dirt in the water blast gun flushing aluminium fin slit; Can only be with highly acid clean-out system rust cleaning, scale removal for stainless steel casing etc.There is following problem:
1. the strong basicity clean-out system has sharp aroma when spraying, and pollutes the operation site environment; 2. the strong basicity clean-out system is extremely strong to the corrodibility of human body skin, the operator's that very easily burns skin; 3. the strong basicity clean-out system has very strong corrodibility to paint coating, often causes and paints variable color, aliquation, peels off etc.; 4. strong basicity clean-out system spray the time can not reach the each several part of aluminium fin equably, therefore cleans inhomogeneously, and the black and white aberration appears in outward appearance; 5. with the thickness of aluminium fin, the method for spraying clean-out system is difficult to clean thoroughly fine and closely woven aluminium fin is inner; 6. the strong basicity clean-out system is obvious to the corrosion of aluminium fin, after most of aluminium fin cleans four times all with attenuation, become fragile, need to upgrade; 7. shell and other component to air-conditioning also need to clean with acidic cleaner, increased the complicacy of operating, wasted time and energy.
2. acid wash generally adopts ultrasonic cleaning, because the acid additive difference that clean-out system adopted, cleaning performance is also inequality.The clean-out system that has has sharp aroma, influences the execute-in-place environment; The generation acid mist that has causes room machine equipment generation corrosion; The corrodibility that also has is strong excessively, causes the incidental stainless steel of air-conditioning, copper pipe, rubber heat keeper and ultrasonic cleaner to corrode.
Summary of the invention:
The present invention is in order to solve existing in prior technology the problems referred to above, to provide a kind of and can uniform and complete remove dirt, can not producing deep-etching to component such as aluminium, copper and stainless steels again; Time saving and energy saving, with low cost, safe and reliable, free of contamination air conditioner clean-out system and purging method.
Technical solution of the present invention is: a kind of air conditioner clean-out system, it is characterized in that contained raw material and weight percent are as follows: in citric acid, inorganic weak acid, the inorganic acid at least two kinds, wherein citric acid 1～40%, inorganic weak acid 0.1～15%, inorganic acid 0.1～5%; Nonionogenic tenside or nonionogenic tenside and anion surfactant are composite, nonionogenic tenside 0.5～20%, anion surfactant 0.5～10%; Oxo solvent 0.5～15%, acid inhibitor 0.1～10%, water surplus.
Described inorganic weak acid is phosphoric acid or boric acid.
Described inorganic acid is sulfuric acid or nitric acid.
Described nonionogenic tenside is polyoxyethylene octylphenol ether (9) or polyoxyethylene nonylphenol ether (9) or ethoxylated dodecyl alcohol (9) and polyoxyethylene nonylphenol ether (6) or ethoxylated dodecyl alcohol (6).
Described anion surfactant is Sodium dodecylbenzene sulfonate, sodium lauryl sulphate or dodecyl alcohol polyoxyethylene ether (3) sodium sulfate.
Described oxo solvent is an ethylene glycol, 1, at least a in 2-propylene glycol, Virahol, ethylene glycol phenyl ether, butyl glycol ether, ethylene glycol ethyl ether, Diethylene Glycol butyl ether, the diethylene glycol ether.
Described acid inhibitor is at least a in thiocarbamide, urotropine, the benzotriazole.
A kind of air conditioner purging method is characterized in that following steps are arranged:
A, with the dismounting of motor and fan and take off, clean separately;
B, clean-out system are made into the aqueous solution by 10～15%, and the air-conditioning integral body of dismantle motor and fan is hung in the rinse bath, and normal temperature soaks 30min down, opens ultrasonic cleaning 10～30min; Air-conditioning integral body is placed washing bath, with water blast gun hydro-peening air-conditioning surface and inner;
C, 80 ℃ of hot-air seasonings.
The present invention is the acid washing assistant based on weak acid, and each component cooperatively interacts, but uniform and complete is removed the surperficial dirt of component such as aluminium fin and housing in the air-conditioning, to improve the heating of air-conditioning, refrigerating efficiency; The high efficient restrainer that is added simultaneously, also can prevent aluminium, copper and stainless excessive erosion, can once clean air conditioner (remove motor, fan) and finish, problem such as avoid using two kinds of existing complicated operations of clean-out system, waste time and energy, time saving and energy saving, cost is low; The present invention does not produce acid mist, nontoxic, and operating environment and human body are had no effect, and is safe and reliable.
Embodiment:
Embodiment 1:
Get the citric acid of gross weight 1～40%, the inorganic weak acid of gross weight 0.1～15%, the inorganic acid of gross weight 0.1～5%, the nonionogenic tenside of gross weight 0.5～20%, the anion surfactant of gross weight 0.5～10%, gross weight 0.5～15% oxo solvent, the acid inhibitor of gross weight 0.1～10%, above-mentioned raw materials added stirring and dissolving is that colourless transparent liquid gets final product in the entry, each raw material can be selected in weight range, and adding water, to make the weight sum be 100%.Inorganic weak acid can be phosphoric acid or boric acid; Inorganic acid can be sulfuric acid or nitric acid; Anion surfactant is Sodium dodecylbenzene sulfonate, sodium lauryl sulphate or dodecyl alcohol polyoxyethylene ether (3) sodium sulfate, and nonionogenic tenside is a kind of and polyoxyethylene nonylphenol ether (6) or the ethoxylated dodecyl alcohol (6) in polyoxyethylene octylphenol ether (9), polyoxyethylene nonylphenol ether (9), the ethoxylated dodecyl alcohol (9); Oxo solvent is an ethylene glycol, 1, at least a in 2-propylene glycol, Virahol, ethylene glycol phenyl ether, butyl glycol ether, ethylene glycol ethyl ether, Diethylene Glycol butyl ether, the diethylene glycol ether; Acid inhibitor is at least a in thiocarbamide, urotropine, the benzotriazole.
Concrete purging method is:
A. open the air-conditioning top cover, motor and fan are dismantled and taken off, clean separately;
B. embodiment 1 clean-out system is made into the aqueous solution by 10～15%, the air-conditioning integral body of dismantle motor and fan is hung in the rinse bath, normal temperature soaks 30min down, opens ultrasonic cleaning 10～30min; Air-conditioning hung out place washing bath, with water blast gun hydro-peening air-conditioning surface and inner, particularly the aluminium flake gap of aluminium fin should be washed repeatedly;
C.80 ℃ hot-air seasoning.
Embodiment 2:
Get the citric acid of gross weight 1～40%, the inorganic weak acid of gross weight 0.1～15%, the inorganic acid of gross weight 0.1～5%, the nonionogenic tenside of gross weight 0.5～20%, gross weight 0.5～15% oxo solvent, the acid inhibitor of gross weight 0.1～10% adds to be stirred in the entry and is dissolved as colourless transparent liquid and gets final product, each raw material can be selected in weight range, and adding water, to make the weight sum be 100%.
Raw materials used concrete title and purging method are with embodiment 1.
Embodiment 3:
Get the citric acid of gross weight 1～40%, the inorganic weak acid of gross weight 0.1～15%, the nonionogenic tenside of gross weight 0.5～20%, gross weight 0.5～15% oxo solvent, the acid inhibitor of gross weight 0.1～10%, add to be stirred in the entry and be dissolved as colourless transparent liquid and get final product, each raw material can be selected in weight range, and adding water, to make the weight sum be 100%.
Raw materials used concrete title and purging method are with embodiment 1.
Embodiment 4:
Get the citric acid of gross weight 1～40%, the inorganic acid of gross weight 0.1～5%, the anion surfactant of gross weight 0.5～10%, the nonionogenic tenside of gross weight 0.5～20%, gross weight 0.5～15% oxo solvent, the acid inhibitor of gross weight 0.1～10% adds to be stirred in the entry and is dissolved as colourless transparent liquid and gets final product.Each raw material can be selected in weight range, and adding water, to make the weight sum be 100%.
Raw materials used concrete title and purging method are with embodiment 1.
Embodiment 5:
Get the inorganic weak acid of gross weight 0.1～15%, the inorganic acid of gross weight 0.1～5%, the nonionogenic tenside of gross weight 0.5～20%, gross weight 0.5～15% oxo solvent, the acid inhibitor of gross weight 0.1～10%, add to be stirred in the entry and be dissolved as colourless transparent liquid and get final product, each raw material can be selected in weight range, and adding water, to make the weight sum be 100%.
Raw materials used concrete title and purging method are with embodiment 1.
Clean air-conditioning with the embodiment of the invention 1～5, product per ton can clean 30～40, can wash 5～10 air-conditionings than prior art more, and use cost is low.
Claims (8)
1. air conditioner clean-out system is characterized in that contained raw material and weight percent are as follows: in citric acid, inorganic weak acid, the inorganic acid at least two kinds, wherein citric acid 1～40%, inorganic weak acid 0.1～15%, inorganic acid 0.1～5%; Nonionogenic tenside or nonionogenic tenside and anion surfactant are composite, nonionogenic tenside 0.5～20%, anion surfactant 0.5～10%; Oxo solvent 0.5～15%, acid inhibitor 0.1～10%, water surplus.
2. air conditioner clean-out system according to claim 1 is characterized in that described inorganic weak acid is phosphoric acid or boric acid.
3. air conditioner clean-out system according to claim 1 is characterized in that described inorganic acid is sulfuric acid or nitric acid.
4. air conditioner clean-out system according to claim 1 is characterized in that described nonionogenic tenside is polyoxyethylene octylphenol ether (9) or polyoxyethylene nonylphenol ether (9) or ethoxylated dodecyl alcohol (9) and polyoxyethylene nonylphenol ether (6) or ethoxylated dodecyl alcohol (6).
5. air conditioner clean-out system according to claim 1 is characterized in that described anion surfactant is Sodium dodecylbenzene sulfonate, sodium lauryl sulphate or dodecyl alcohol polyoxyethylene ether (3) sodium sulfate.
6. air conditioner clean-out system according to claim 1, it is characterized in that described oxo solvent is an ethylene glycol, 1, at least a in 2-propylene glycol, Virahol, ethylene glycol phenyl ether, butyl glycol ether, ethylene glycol ethyl ether, Diethylene Glycol butyl ether, the diethylene glycol ether.
7. air conditioner clean-out system according to claim 1 is characterized in that described acid inhibitor is at least a in thiocarbamide, urotropine, the benzotriazole.
8. purging method with the described air conditioner clean-out system of claim 1 is characterized in that having following steps:
A, with the dismounting of motor and fan and take off independent cleaning;
B, clean-out system are made into the aqueous solution by 10～15%, and the air-conditioning integral body of dismantle motor and fan is hung in the rinse bath, and normal temperature soaks 30min down, opens ultrasonic cleaning 10～30min; Air-conditioning integral body is placed washing bath, with water blast gun hydro-peening air-conditioning surface and inner;
C, 80 ℃ of hot-air seasonings.
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| CN101962779A (en) * | 2010-10-22 | 2011-02-02 | 大连三达奥克化学股份有限公司 | Acidic cleaner for removing oxide scale and oily carbon deposition mixing layer on surface of aluminum |
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