Medicament for treating composite water in hot water boiler as well as preparation method and use method thereof

A technology for hot water boilers and water treatment, applied in water/sludge/sewage treatment, chemical instruments and methods, descaling and water softening, etc. problems, to achieve excellent anti-corrosion, scale inhibition, easy to use effects

Active Publication Date: 2013-07-03
SHANGHAI EMPEROR OF CLEANING HI TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the problem that traditional phosphate water treatment agents are mixed with tannin oxygen scavengers to form insoluble salts, reducing the descaling effect,

Method used

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  • Medicament for treating composite water in hot water boiler as well as preparation method and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6

[0031] 1. Preparation of compound water treatment agent for hot water boiler:

[0032] Mix and stir ethylenediaminetetramethylene phosphate (EDTMP), trisodium phosphate, sodium methylene dinaphthalene sulfonate (NNO), polymaleic anhydride, tannin and diethylhydroxylamine in the mass ratio shown in Table 1 , that is.

[0033] Table 1 Embodiment 1-6 hot water boiler composite water treatment agent formula and use effect

[0034]

[0035] 2. The scale and corrosion inhibition performance of composite water treatment chemicals for hot water boilers was evaluated by the dynamic method of "Evaluation Method for Boiler Water Treatment Agent Performance" in the chemical industry standard HG / T3924-2007 of the People's Republic of China. In this standard, see Table 2 and Table 3 for the water quality indicators of scale inhibition performance test feed water preparation and corrosion inhibition performance test feed water preparation water.

[0036] Table 2 Feed water preparation w...

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Abstract

The invention discloses a medicament for treating composite water in a hot water boiler. The medicament comprises the following components by mass percent: 0.1-3% of inorganic phosphate, 0.1-2% of organic phosphoric acid and/or organic phosphate, 0.1-4% of component A, 0.1-3% of component B, 0.6-1.0% of organic amine deoxidizer, 0.1-2% of tannin and/or chitosan and the balance of water, wherein the mass percent of the components is 100%, the component A is one or more of an organic antisludging agent, an organic dispersant and an organic dispersible antisludging agent, and the component B is one or more of an organic carboxylic acid corrosion inhibitor, an organic carboxylate corrosion inhibitor and sodium methylene dinaphthalenesulfonate. The invention further discloses a preparation method and a use method of the medicament, the preparation process is clean, and the medicament is low in toxicity for body health and environment in the using process. The medicament is excellent in corrosion resistance and scale inhibition effects and simple and convenient to store and transport, and the corrosion and scale inhibition effects cannot be reduced after the medicament is stored and transported for a long term.

Description

technical field [0001] The invention relates to a composite water treatment agent for a hot water boiler, a preparation method and a use method thereof. Background technique [0002] With the advocacy of a resource-saving society, energy saving and cost reduction of boilers have also been put on the new agenda. In the reclaimed water system such as cooling water system, boiler water system and exhaust dust water system, there is a requirement to save water. For this reason, in recent years, researchers have devoted themselves to developing technologies that can reduce the amount of water overflowing the system and operate at high concentrations. [0003] During the use of the hot water boiler, after the feed water containing impurities (mainly hardness components) enters the boiler, due to the high concentration of scale components such as calcium and magnesium in the water, when it reaches saturation through continuous evaporation and concentration, the solid Deposits are...

Claims

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Application Information

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IPC IPC(8): C02F5/14C02F5/00
Inventor 王炜
Owner SHANGHAI EMPEROR OF CLEANING HI TECH
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