Scale scavenger for water cooling heat exchanger system

A water-cooled heat exchanger and scavenger technology, which is applied in water/sludge/sewage treatment, descaling and water softening, chemical instruments and methods, etc. The production process is simple, the descaling effect is good, and the transportation is convenient.

Inactive Publication Date: 2005-01-19
邓武强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Liquid inorganic acid descaling agent has fast descaling speed, but it is highly corrosive, poor in safety, and not convenient for storage and transportation
CN1068801A discloses that U.S. Rohm and Haas companies use acrylic acid and maleic acid-based copolymers or terpolymers as silica scale inhibitors, replacing inorganic acids with organic acids, but the cost is high
CN1095694A discloses a car water tank descaling cleaner prepared with nitrilotriacetic acid and ethylenediaminetetraacetic acid. The nitrilotriacetic acid is insoluble in water, has low toxicity, and is difficult to prepare and apply
My application number is 00105670.0. The high-efficiency descaling agent for water-cooled heat exchanger system, although the effect of removing carbonate scale is good, but it is not ideal in removing non-carbonate scale; The situation of overflowing bubbles and liquids is easy to cause pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Maleic acid 16 Sulfamic acid 32 Glycolic acid 10

[0009] Ammonium Chloride 20 Ammonium Nitrate 6 Sodium Methylene Dinaphthalene Sulfonate 2

[0010] Sodium lignosulfonate 2 Thiourea 9 Hexatropine 3

[0011] Also add 0.1% of silicone oil. The descaling rate of carbonate scale is 97.2%.

Embodiment 2

[0013] Tartaric acid 15 Citric acid 32 Succinic acid 18

[0014] Ammonium Chloride 12 Ammonium Nitrate 8 Sodium Alkyl Naphthalene Sulfonate 4

[0015] Alkylphenol ethoxylates 6 Sodium lignin 4 Sodium hexametaphosphate 1

[0016] Also add 0.5% paraffin oil. The descaling rate of carbonate scale is 96.8%.

Embodiment 3

[0018] Oxalic acid 35 Fumaric acid 12 EDTA 4

[0019] Ammonium Chloride 15 Ammonium Nitrate 10 Ammonium Fluoride 9

[0020] Sodium fatty alcohol sulfate 4 Sodium polyacrylate 3 Di-o-tolylthiourea 6

[0021] Benzotriazole 2

[0022] Also add 0.3% octanol. The descaling rate of non-carbonate scale is 88.3%.

[0023] B, industrial water-cooled heat exchanger system with scale remover, its raw material composition (weight percent):

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PUM

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Abstract

The invention relates to a water treatment composition, in particular a solid descaling agent composition to be charged into water-cooling heat exchanger system, wherein organic acid is utilized as the host agent, ammonium salt is used as the auxiliary agent, surface active agent and metallic inhibitor are used as auxiliary agents, the weight percentage of each raw materials are, host agent 51-65%, the auxiliary agent 16-35%, the adjuvant 8-20%. The process for producing the scale scavenging agent comprises raw material sieving, premixing, machine mixing, measurement, deformer addition, and hermetic package.

Description

technical field [0001] The invention relates to a composition for water treatment, in particular to a solid descaling agent composition added to a water-cooled heat exchanger system for descaling. Background technique [0002] For heat exchange devices that use water as the cooling medium, scaling will inevitably occur in the system after a period of use, which will affect the circulation of cooling water, reduce heat transfer efficiency, and even lead to scrapping of equipment in severe cases. To solve this problem, some solid alkaline descaling agents and inorganic acid liquid descaling agents are available on the market. Although alkaline descaling agent is relatively economical, it is cumbersome to operate and requires specific conditions. The liquid inorganic acid descaling agent has a fast descaling speed, but it is highly corrosive, poor in safety, and not convenient for storage and transportation. CN1068801A discloses that American Rohm and Haas companies use acryl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/10C02F5/12
Inventor 邓武强
Owner 邓武强
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