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Rapid degreasing cleanser for heat exchanger and use method thereof

A heat exchanger and cleaning agent technology, applied in chemical instruments and methods, detergent compounding agents, detergent compositions, etc. Strong oil descaling ability, improved oil removal efficiency, and good cleaning effect

Inactive Publication Date: 2017-07-14
ANHUI PROPELLENT HEAT TRANSFER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing chemical cleaning agents are only suitable for cleaning scale, and cannot achieve a good cleaning effect on the oil-soluble dirt existing in the heat exchanger, and the raw materials of many chemical cleaning agents require the use of cleaning agents when cleaning Higher temperatures, resulting in wasted energy
However, the surface degreasing cleaning agent used at room temperature has poor dispersion performance, long degreasing time, and poor cleaning effect
In addition, most of the existing chemical cleaning agents contain strong acidic components or strong alkaline components, which will not only corrode equipment, but also cause serious environmental pollution problems due to cleaning waste liquid

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A rapid degreasing cleaning agent for heat exchangers, the weight percent of each component is as follows: fatty alcohol polyoxyethylene ether sodium sulfate 4%, sodium dodecylbenzene sulfonate 1.5%, isooctyl alcohol polyoxyethylene ether Phosphate ester 0.7%, diatomaceous earth 1.5%, complexing agent 4%, sodium hexaphosphate metatamate 0.5%, sodium bicarbonate 3.5%, polyethylene glycol 1%, ethanol 4.5%, deionized water balance.

[0016] The above-mentioned complexing agent is prepared by mixing disodium edetate and dipotassium hydroxyethylidene diphosphonate at a mass ratio of 1:1.

[0017] When in use, soak the heat exchanger plates in the above-mentioned quick degreasing cleaning agent for heat exchangers for 8 minutes, then take them out and rinse them with clean water.

Embodiment 2

[0019] A rapid degreasing cleaning agent for heat exchangers, the weight percent of each component is as follows: fatty alcohol polyoxyethylene ether sodium sulfate 4%, sodium dodecylbenzene sulfonate 1%, isooctyl alcohol polyoxyethylene ether Phosphate ester 0.8%, diatomaceous earth 2%, edetate disodium 2.5%, sodium hexaphosphate metatamate 0.6%, sodium bicarbonate 4.5%, polyethylene glycol 0.5%, ethanol 4%, water balance.

[0020] When in use, soak the heat exchanger plates in the above-mentioned quick degreasing cleaning agent for heat exchangers for 14 minutes, then take them out and rinse them with clean water.

Embodiment 3

[0022] A rapid degreasing cleaning agent for heat exchangers, the weight percent of each component is as follows: fatty alcohol polyoxyethylene ether sodium sulfate 5%, sodium dodecylbenzene sulfonate 2%, isooctyl alcohol polyoxyethylene ether Phosphate ester 0.8%, diatomaceous earth 1%, complexing agent 2%, sodium hexaphosphate metaphosphate 0.5%, sodium bicarbonate 2.5%, polyethylene glycol 1%, ethanol 6%, deionized water balance.

[0023] The above-mentioned complexing agent is prepared by mixing disodium edetate and dipotassium hydroxyethylidene diphosphonate at a mass ratio of 1:2.

[0024] When in use, soak the heat exchanger plates in the above-mentioned quick degreasing cleaning agent for heat exchangers for 10 minutes, then take them out and rinse them with clean water.

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PUM

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Abstract

The invention provides a rapid degreasing cleanser for a heat exchanger and a use method thereof. The cleanser contains the following components in percentage by weight: 2-5% of sodium alcohol ether sulfate, 1-2.5% of sodium dodecyl benzene sulfonate, 0.4-0.8% of 2-ethylhexanol ethoxylate phosphate, 1-2% of diatomite, 2-5% of a complexing agent, 0.3-0.6% of sodium hexametaphosphate, 2.5-4.5% of sodium bicarbonate, 0.5-1.5% of polyethylene glycol, 2-6% of ethanol, and the balance of water. The cleanser provided by the invention has good dispersity, can rapidly remove oil dirt and water scale on the surface of a heat exchanger, has a good cleaning effect and high cleaning efficiency, does not contain strong base component, and greatly reduces the corrosion of the cleanser to equipment and the pollution of the cleanser to the environment.

Description

technical field [0001] The invention relates to the field of heat exchangers, in particular to a quick degreasing cleaning agent for heat exchangers and a method for using the same. Background technique [0002] Heat exchanger is a general-purpose equipment widely used in chemical industry, oil refining, power, food, light industry, atomic energy, pharmaceutical, machinery and many other industrial sectors, and plays an important role in production. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators and reboilers, etc., and are more widely used. According to statistics, in the modern chemical industry, the investment in heat exchangers accounts for about 30% of the total equipment investment, and in oil refineries, it accounts for about 40% of all process equipment. Seawater desalination process devices are almost all composed of heat exchangers. . [0003] Plate heat exchangers are widely used in heat exchange between water an...

Claims

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Application Information

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IPC IPC(8): C11D1/37C11D3/06C11D3/10C11D3/12C11D3/20C11D3/33C11D3/36C11D3/37C11D3/60
CPCC11D1/37C11D1/22C11D1/29C11D1/345C11D3/06C11D3/10C11D3/1246C11D3/201C11D3/33C11D3/361C11D3/3707
Inventor 张凌霞
Owner ANHUI PROPELLENT HEAT TRANSFER TECH CO LTD