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Heat supply network scale inhibitor and preparation method thereof

A technology for heating pipe network and scale inhibitor, which is applied in chemical instruments and methods, descaling and water softening, water/sludge/sewage treatment, etc. Valve heating system safety and service life and other issues

Active Publication Date: 2019-12-10
XINJIANG ENVIRONMENTAL ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a heat supply pipe network antiscalant and its preparation method, which solves the serious corrosion and fouling phenomenon in the existing heat supply pipe network, which affects the pipe network, valves and the whole The safety and service life of the heating system, the problem of increased maintenance of the equipment pipe network

Method used

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  • Heat supply network scale inhibitor and preparation method thereof
  • Heat supply network scale inhibitor and preparation method thereof

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Embodiment 1

[0026] A heating pipe network antiscalant, its raw materials include by weight: 5 parts of polyepoxy succinic acid, 15 parts of phosphorus pentoxide, 5 parts of hypochlorous acid, 5 parts of molybdate, 3 parts of zinc sulfate, phosphoric acid 8 parts of trisodium, 10 parts of urotropine, 5 parts of hydroxyethylidene diphosphonic acid and 30 parts of deionized water.

[0027] The invention also discloses a preparation method of a heating pipe network scale inhibitor, which specifically includes the following steps:

[0028] Step 1. Preparation of aqueous solution: first configure polyepoxysuccinic acid into an aqueous solution, add it to the reaction kettle, then configure phosphorus pentoxide into an aqueous solution and put it into the high-level tank 1, put hypochlorous acid into the high-level tank 2, and stir Reactor and heat up to 35±5°C;

[0029] Step 2, the formation of intermediate acid: in the reaction kettle of step 1, add the liquid in the high-level tank 1 and the...

Embodiment 2

[0032] A heating pipe network scale inhibitor, its raw materials include by weight: 10 parts of polyepoxy succinic acid, 20 parts of phosphorus pentoxide, 10 parts of hypochlorous acid, 10 parts of molybdate, 5.5 parts of zinc sulfate, phosphoric acid 12.5 parts of trisodium, 12.5 parts of urotropine, 7.5 parts of hydroxyethylidene diphosphonic acid and 40 parts of deionized water.

[0033] The invention also discloses a preparation method of a heating pipe network scale inhibitor, which specifically includes the following steps:

[0034] Step 1. Preparation of aqueous solution: first configure polyepoxysuccinic acid into an aqueous solution, add it to the reaction kettle, then configure phosphorus pentoxide into an aqueous solution and put it into the high-level tank 1, put hypochlorous acid into the high-level tank 2, and stir Reactor and heat up to 35±5°C;

[0035] Step 2, the formation of intermediate acid: in the reaction kettle of step 1, add the liquid in the high-leve...

Embodiment 3

[0038] A heating pipe network antiscalant, its raw materials include by weight: 15 parts of polyepoxy succinic acid, 25 parts of phosphorus pentoxide, 15 parts of hypochlorous acid, 15 parts of molybdate, 8 parts of zinc sulfate, phosphoric acid 15 parts of trisodium, 15 parts of urotropine, 10 parts of hydroxyethylidene diphosphonic acid and 50 parts of deionized water.

[0039] The invention also discloses a preparation method of a heating pipe network scale inhibitor, which specifically includes the following steps:

[0040] Step 1. Preparation of aqueous solution: first configure polyepoxysuccinic acid into an aqueous solution, add it to the reaction kettle, then configure phosphorus pentoxide into an aqueous solution and put it into the high-level tank 1, put hypochlorous acid into the high-level tank 2, and stir Reactor and heat up to 35±5°C;

[0041]Step 2, the formation of intermediate acid: in the reaction kettle of step 1, add the liquid in the high-level tank 1 and...

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Abstract

The invention discloses a heat supply network scale inhibitor and a preparation method thereof. The heat supply network scale inhibitor is prepared from the raw materials in parts by weight: 5-15 parts of polyepoxysuccinic acid, 15-25 parts of phosphorus pentoxide, 5-15 parts of hypochlorous acid, 5-15 parts of molybdate, 3-8 parts of zinc sulfate, 8-15 parts of trisodium phosphate, 10-15 parts ofurotropin, 5-10 parts of hydroxyethylidenedi phosphonic acid and 30-50 parts of deionized water. The invention relates to the technical field of water treatment. According to the heat supply networkscale inhibitor and the preparation method thereof, the polyepoxysuccinic acid and the phosphorus pentoxide are configured into an aqueous solution, then the aqueous solution and the hypochlorous acidform polyepoxysuccinic acid containing a phosphonic acid group, the molybdate, the zinc sulfate, the trisodium phosphate, the urotropin and the hydroxyethylidenedi phosphonic acid are added, the dualeffect of scale and corrosion inhibition in chemical compositions is utilized to form a composite corrosion and scale inhibitor, the heat supply network scale inhibitor has good scale and corrosion inhibition performance, and has good corrosion inhibition effect on copper, carbon steel and stainless steel, the product is environmental friendly, and secondary pollution cannot be caused.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a heat supply pipe network scale inhibitor and a preparation method thereof. Background technique [0002] Urban central heating pipe network is a pipeline system that transports and distributes heating medium from urban central heating sources to heat users. The heat network is composed of heat transmission trunk lines, heat distribution trunk lines, and branch lines. The heat transmission main line is drawn from the heat source, and generally does not connect to the branch line; the heat distribution main line is directly connected to the heat transmission main line or directly from the heat source, and heat is supplied to the user through the heat distribution branch line. The pipe diameter of the heating network is determined according to the hydraulic calculation. In large-scale pipeline networks, sometimes in order to ensure the pressure condition of the pipeline ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/14C02F5/10
CPCC02F5/145
Inventor 宋勇艾山·玉素莆于文浩李红丽
Owner XINJIANG ENVIRONMENTAL ENG TECH