Central heating system protective agent

A technology of heating system and central system, applied in the field of central heating system protective agent, can solve the problem of unsuitable protective agent, and achieve the effect of good chelation, corrosion prevention and wide application range

Pending Publication Date: 2020-08-11
格润美尔(北京)环保水处理技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] It can be seen that the protective agent on the market is not sui

Method used

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  • Central heating system protective agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A central heating system protective agent, the protective agent is composed of the following components:

[0053] Hydroxyethylidene diphosphonic acid 0.04%, hydrolyzed polymaleic anhydride 0.10%, ethylene diamine tetramethylene phosphonic acid 0.02%, benzotriazole 0.05%, zinc sulfate heptahydrate 0.25%, lauroyl sarcosine Sodium Oxide 3.5%, Sodium Hydroxide 0.006%, Sodium Sulfite 3%, and the balance is distilled water.

[0054] Preparation:

[0055] (1) Measure distilled water and inject it into a temperature-controllable reaction kettle, pass steam into the interlayer of the reaction kettle, heat the water temperature and maintain it between 60-65°C, weigh the copper corrosion inhibitor benzotriazole in proportion, fully dissolved;

[0056] (2) Add scale inhibitor hydroxyethylidene diphosphonic acid, dispersant hydrolyzed polymaleic anhydride, and slow-release scale inhibitor ethylenediaminetetramethylenephosphonic acid in proportion, stir well, and detect that the pH v...

Embodiment 2

[0063] A central heating system protective agent, the protective agent is composed of the following components:

[0064] Hydroxyethylidene diphosphonic acid 0.03%, hydrolyzed polymaleic anhydride 0.11%, ethylene diamine tetramethylene phosphonic acid 0.03%, benzotriazole 0.06%, zinc sulfate heptahydrate 0.2%, lauroyl sarcosine 4% Sodium Hydroxide, 0.005% Sodium Hydroxide, 3% Sodium Sulfite, and the remainder is distilled water.

[0065] The preparation method is the same as in Example 1.

Embodiment 3

[0067] A central heating system protective agent, the protective agent is composed of the following components:

[0068] Hydroxyethylidene diphosphonic acid 0.05%, hydrolyzed polymaleic anhydride 0.07%, ethylene diamine tetramethylene phosphonic acid 0.04%, benzotriazole 0.04%, zinc sulfate heptahydrate 0.4%, lauroyl sarcosine 2% Sodium Hydroxide, 0.007% Sodium Hydroxide, 3% Sodium Sulfite, and the rest is distilled water.

[0069] The preparation method is the same as in Example 1.

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PUM

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Abstract

The invention discloses a central heating system protective agent. The protective agent is prepared from the following components in parts by weight: 0.01%-0.08% of a scale inhibitor, 0.02%-0.15% of adispersing agent, 0.01%-0.06% of a slow-release scale inhibitor, 0.02%-0.1% of a copper corrosion inhibitor, 0.1%-0.8% of a zinc corrosion inhibitor, 0.003%-0.01% of an acid-base regulator, 1%-6% ofa corrosion inhibitor, 1%-6% of a deoxidant and the balance of water.

Description

technical field [0001] The invention relates to a protective agent for central heating systems, which fills the gap in the current protection of household boilers, small commercial boilers and heating systems. The system is a high-efficiency protective agent with multiple functions such as corrosion inhibition and scale inhibition. Background technique [0002] At present, the protective agents on the market are slow-release scale inhibitors suitable for large-scale industrial and civil boilers and systems. It is mainly divided into low pH value phosphate series and zinc salt system and high pH value three sodium one glue method and its extension. [0003] Phosphate series and zinc salt series with low pH value are for intermittent heating systems, increasing the phosphorus content in water will cause rapid growth of microorganisms and pollute the water body, and at the same time affect the safe operation of boilers and their equipment; adding the following to the heating s...

Claims

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Application Information

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IPC IPC(8): C02F5/14C02F103/02
CPCC02F5/145C02F2103/02C02F2103/023C02F2303/08C02F2303/22
Inventor 张付华李结雅
Owner 格润美尔(北京)环保水处理技术有限公司
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