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A kind of marine biological inhibitor of seawater once-through cooling system and preparation method thereof

A once-through cooling, marine biological technology, applied in the fields of botanical equipment and methods, biocides, chemicals for biological control, etc. Achieve strong killing efficiency, keep clean and efficient operation, and slow down corrosion

Active Publication Date: 2018-05-08
XIAN THERMAL POWER RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Non-oxidizing biocides such as quaternary ammonium salts can effectively control the growth of marine organisms, but the single use of quaternary ammonium salt biocides is easily absorbed by the high content of suspended matter in seawater, reducing the control effect of marine organisms
At the same time, the secretion of marine organisms is easy to adhere to the sediment, animal remains, algae, etc. in the water to form sludge, which not only affects the heat transfer efficiency, but also easily causes local corrosion of the equipment

Method used

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  • A kind of marine biological inhibitor of seawater once-through cooling system and preparation method thereof
  • A kind of marine biological inhibitor of seawater once-through cooling system and preparation method thereof
  • A kind of marine biological inhibitor of seawater once-through cooling system and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Put 10% by weight of 2,5-pentylamine-benzimidazole, 20% by weight of organic solvent, and 5% by weight of deionized water into the reactor successively, and stir and raise the temperature at a speed of 50~70rpm Fully dissolve at 60°C to form a stable mixture A; 15% by weight of dodecyl dimethyl benzyl ammonium chloride, 5% by weight of penetrant and 15% by weight of deionized water are added to the reaction Stir and dissolve in the container to form a stable mixture B; after adding the mixture B into the reaction kettle and mixing the mixture A fully for dissolution, slowly adding 30% by weight of the alkylaminoethylglycine solution and stirring uniformly to obtain the copolymer product. Discharge into barrels. Among them: the penetrant is dodecyl fatty alcohol polyoxyethylene ether JFC, and the organic solvent is ethanol.

Embodiment 2

[0031] Put 8% by weight of 2,5-pentylamine-benzimidazole, 23% by weight of organic solvent, and 5% by weight of deionized water into the reactor successively, and stir and raise the temperature at a speed of 50~70rpm Fully dissolve at 60°C to form a stable mixture A; 20% by weight of dodecyl dimethyl benzyl ammonium chloride, 4% by weight of penetrant and 15% by weight of deionized water are added to the reaction Stir and dissolve in the container to form a stable mixture B; after adding the mixture B into the reactor and fully stirring and dissolving the mixture A, slowly add 25% by weight of the alkylaminoethylglycine solution and stir uniformly to obtain the copolymer product. Discharge into barrels. Among them: the penetrant is myristyl fatty alcohol polyoxyethylene ether, and the organic solvent is isopropanol.

Embodiment 3

[0033] Put 10% by weight of 2,5-pentylamine-benzimidazole, 20% by weight of organic solvent, and 5% by weight of deionized water into the reactor successively, and stir and raise the temperature at a speed of 50~70rpm Fully dissolve at 60°C to form a stable mixture A; 30% by weight of dodecyldimethylbenzylammonium chloride, 6% by weight of penetrant and 15% by weight of deionized water are added to the reaction Stir and dissolve in the container to form a stable mixture B; after adding the mixture B into the reactor and fully stirring and dissolving the mixture A, slowly add 19% by weight of the alkylaminoethylglycine solution and stir uniformly to obtain the copolymer product. Discharge into barrels. Among them: the penetrant is stearyl fatty alcohol polyoxyethylene ether, and the organic solvent is cyclohexanone.

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Abstract

The invention discloses a seawater once-through cooling system marine organism inhibitor and a preparation method thereof. The marine organism inhibitor is composed of components according to weight percentage: dodecyl dimethyl benzyl ammonium chloride in 5-30% parts; Aminoethyl glycine 10-30%; imidazoline cyclic amine compound 3-20%; penetrating agent 1-10%; the balance is deionized water and organic solvent; the total proportion of each component is 100%; the invention also discloses The preparation method of the marine biological inhibitor is disclosed; the invention mainly solves the problem of inhibition and killing of molluscs such as shellfish and barnacles in the cooling water system, so as to ensure the normal operation of the cooling water system and ensure safe production.

Description

Technical field [0001] The invention belongs to the technical field of marine organism suppression for seawater cooling water systems of coastal power plants, and specifically relates to an inhibitor for fouling marine organisms by seawater cooling systems of coastal power plants and a preparation method. Background technique [0002] Most of the cooling water systems of coastal power plants in my country use seawater through-flow cooling. Since there are a large number of fouling organisms in seawater, including seaweeds, shellfish, barnacles, hydroids, etc., although mechanical devices such as grilles and rotating filters can block larger sea creatures, their eggs and larvae will follow. A large amount of seawater pours into the cooling water system and adheres to growth and reproduction on the surface of rotating filters, water pipes, heat exchangers and other equipment, which will reduce the flow rate and increase power consumption; block the condenser heat exchange tube and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/52A01N25/30A01P13/00A01P9/00A01N37/44
Inventor 张小刚陈浩王广珠曹杰玉郭焱黄善锋武忠全杨坚李新军
Owner XIAN THERMAL POWER RES INST CO LTD
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