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Inhibition ethanediol antifreezing fluid

An antifreeze and inhibitory technology, applied in the field of antifreeze, can solve problems such as poor bacteriostatic and anti-scaling effects, and achieve the effects of low cost, saving equipment costs and operating costs, and stable performance.

Active Publication Date: 2011-05-04
SHANGHAI EMPEROR OF CLEANING HI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006]Therefore, the technical problem to be solved by the present invention is to provide a solution for the deficiencies in the existing engine-inhibiting glycol-based antifreezes that have poor antibacterial and antifouling effects. An inhibitory glycol antifreeze with good anti-corrosion and antibacterial effects, thereby expanding the scope of use of the inhibitory glycol antifreeze, increasing the service life of the water circulation system, and improving the thermal efficiency of the water circulation system

Method used

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  • Inhibition ethanediol antifreezing fluid
  • Inhibition ethanediol antifreezing fluid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1. Prepare 1000g of inhibitory glycol antifreeze

[0030] Formula: 960 g of ethylene glycol, 30 g of dipotassium hydrogen phosphate, 0.02 g of azole compound (benzotriazole), 0.1 g of water-soluble dye (methylene blue), and 9.88 g of deionized water.

[0031] After mixing, stirring and dissolving the above amounts of ethylene glycol, dipotassium hydrogen phosphate, benzotriazole and deionized water, add methylene blue for color mixing, and stir until uniform.

[0032] 2. Mix the prepared ethylene glycol antifreeze and deionized water at a ratio of 1:4. The corrosion rates of the six metal sheets measured are: red copper 2.84×10 -3 mm / a, solder 3.07×10 -3 mm / a, brass 2.82×10 -3 mm / a, carbon steel 0.91×10 -3 mm / a, cast iron 2.90×10 -3 mm / a, cast aluminum 9.53×10 -3 mm / a. After the experiment, there is no change in the color of each metal piece, and there is no attachment. The total number of bacteria in the antifreeze after the experiment is 10 2 Pieces / mL.

Embodiment 2

[0034] 1. Prepare 1000g of inhibitory glycol antifreeze

[0035] Formula: Ethylene glycol 960g, dipotassium hydrogen phosphate 25g, isothiazolinone 0.4g, sodium nitrite 1g, azole compound (benzotriazole) 0.02g, water-soluble dye (methylene blue) 0.1g, deionized water 13.48g.

[0036] After mixing and dissolving the above-mentioned amounts of ethylene glycol, dipotassium hydrogen phosphate, isothiazolinone, sodium nitrite, benzotriazole and deionized water, add methylene blue for toning, and stir until uniform.

[0037] 2. Mix the prepared ethylene glycol antifreeze and deionized water at a ratio of 1:4. The corrosion rates of the six metal sheets measured are: red copper 2.76×10 -3 mm / a, solder 3.01×10 -3 mm / a, brass 2.79×10 -3 mm / a, carbon steel 0.72×10 -3 mm / a, cast iron 2.69×10 -3 mm / a, cast aluminum 8.94×10 -3 mm / a. After the experiment, there is no change in the color of each metal piece, and there is no attachment. The total number of bacteria in the antifreeze after the expe...

Embodiment 3

[0039] 1. Prepare 1000g of inhibitory glycol antifreeze

[0040] Formula: Ethylene glycol 960g, dipotassium hydrogen phosphate 25g, isothiazolinone 0.4g, sodium nitrite 1g, azole compound (benzotriazole) 0.02g, water-soluble dye (methylene blue) 0.1g, deionized water 13.48g.

[0041] After mixing and dissolving the above-mentioned amounts of ethylene glycol, dipotassium hydrogen phosphate, isothiazolinone, sodium nitrite, benzotriazole and deionized water, add methylene blue for toning, and stir until uniform.

[0042] 2. Mix the prepared glycol antifreeze and deionized water at a ratio of 1:3. The corrosion rates of the six metal sheets measured are: red copper 2.55×10 -3 mm / a, solder 2.86×10 -3 mm / a, brass 2.57×10 -3 mm / a, carbon steel 0.67×10 -3 mm / a, cast iron 2.47×10 -3 mm / a, cast aluminum 8.01×10 -3 mm / a. After the experiment, there is no change in the color of each metal piece, and there is no attachment. The total number of bacteria in the antifreeze after the experiment is...

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PUM

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Abstract

The present invention discloses an inhibition ethanediol antifreezing fluid, comprising the following components, by mass percentages: 94% to 99% of ethanediol compound, 0.5% to 5% of sylvite, 0.001% to 1% of azole compound and 0.001% to 0.015% of water-soluble dye. By adding sylvite into the antifreezing fluid, the invention enables the antifreezing fluid to have high concentration of potassium ion, improves the usefulness of bacteriostasis and antiscale of the antifreezing fluid effectively; and by the optimization combination with other constituents, the antifreezing fluid provided by the invention achieves the effects of anticorrosion, antiscale and bacteriostasis throughout the year; prolongs the service life of system is substantially and saves the equipment cost and the operation cost. The antifreezing fluid also achieves the advantages of stable performance, nontoxicity, innocuousness, low cost and wide usage temperature scope; can be used at the temperature from -50 DEG C to 120 DEG C, is antifreeze in winter and anti-boil in summer.

Description

Technical field [0001] The invention belongs to the field of antifreeze, and particularly relates to a glycol inhibitor antifreeze. Background technique [0002] At present, almost all buildings, whether in the south or north, such as residences, hotels, hotels, shops, and office buildings, are installed with split type air conditioners or central air conditioners. Especially in the southern region, the use of air conditioners to cool down is very long throughout the year, and the use of air conditioners to cool down requires a lot of energy. As one of the development directions of important energy-saving methods in the new century, ice storage is a new technology that benefits mankind and has broad development prospects, and has good social and economic benefits. Today, when energy and environmental protection are becoming more and more important in the world, ice storage will serve as a shift in power peaks and valleys in my country, increase the load rate of power grids, impr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/20A01N59/00A01N59/26A01P1/00A01P13/00
Inventor 王炜
Owner SHANGHAI EMPEROR OF CLEANING HI TECH
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