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Composite water treating agent for central air conditioner cooling water

A water treatment agent and central air-conditioning technology, which is applied in water/sludge/sewage treatment, complex/solubilizer treatment, descaling and water softening, etc., to reduce phosphorus content in discharge, good compatibility and obvious synergistic effect Effect

Active Publication Date: 2006-12-20
SHANGHAI EMPEROR OF CLEANING HI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above two documents only made a preliminary theoretical study on the single application effect of the specific compound formula containing rare earth elements on the scale or corrosion inhibition in water treatment, and further research is needed to combine the dual synergistic effect of corrosion inhibition and scale inhibition Other compound formulas containing rare earth elements to facilitate practical industrial applications, especially the development of water treatment agent compound formulas for central air-conditioning cooling water

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The preparation of composite water treatment agent: with 5mg polyepoxysuccinic acid (PESA), 8mg sodium molybdate (as MoO 4 2- meter), 5mg 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTCA), 2mg benzotriazole (BTA), 1mg cerium nitrate, 1mg ZnSO 4 ·H 2 O (in Zn 2+ meter) and 1L of water are placed in a stirring container and mixed uniformly, which is the normal water treatment agent of the present invention.

Embodiment 2

[0022] The preparation of composite water treatment agent: with 7mg polyepoxysuccinic acid (PESA), 5mg sodium molybdate (as MoO 4 2- meter), 2mg 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTCA), 1mg benzotriazole (BTA), 1mg lanthanum nitrate, 1mg ZnSO 4 ·H 2 O (in Zn 2+ meter) and 1L of water are placed in a stirring container and mixed uniformly, which is the normal water treatment agent of the present invention.

Embodiment 3

[0024] The preparation of composite water treatment agent: with 3mg polyepoxysuccinic acid (PESA), 5mg sodium molybdate (as MoO 4 2- meter), 5mg 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTCA), 1mg benzotriazole (BTA), 1mg praseodymium nitrate, 1mg ZnSO 4 ·7H 2 O (in Zn 2+ meter) and 1L of water are placed in a stirring container and mixed uniformly, which is the normal water treatment agent of the present invention.

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PUM

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Abstract

The invention discloses a treating agent of cooling water and composite water in central air-conditioning, including the weight or portioning components listed as following: one to ten portion of epoxy succinic acid; one to ten portion of phosphonate; one to ten portion of molybdate calculated according to molybdic acid ion; 0.1 to ten portion of rare-earth element salts; one to five portion of copper inhibitor; zero to three portion of zinc calculated according to zinc ion. This invention is low-phosphorus and environment-friendly type, good quality in antisludging and corrosion inhibit, easy to obtain material, explore the application area of using rare-earth element in water treatment, and have greatly active meaning in developing rare earth project of our country.

Description

technical field [0001] The invention relates to a composite water treatment agent, in particular to a composite water treatment agent for central air-conditioning cooling water. Background technique [0002] In the central air-conditioning water system, due to the combined effect of the evaporation and concentration of circulating cooling water, the entry of dust and debris, as well as the equipment structure and materials, the entire system will produce corrosion and scaling, especially corrosion problems, which will affect The service life of the equipment and the heat exchange efficiency will cause energy waste, which will seriously cause the high-voltage operation and tripping of the air conditioner host. Therefore, it is necessary to add effective water treatment chemicals to the cooling water of the central air conditioner. The most widely used corrosion and scale inhibitors in the current circulating cooling water system are organic phosphine series composite water st...

Claims

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Application Information

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IPC IPC(8): C02F5/08C02F5/14
Inventor 王炜
Owner SHANGHAI EMPEROR OF CLEANING HI TECH
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