阅读说明：本技术 钛材换热器硅垢清洗剂 (Titanium heat exchanger silica scale cleaning agent ) 是由 石小军 曾玉 于 2020-04-16 设计创作，主要内容包括：钛材换热器硅垢清洗剂及其制备方法和应用,属环境保护技术领域。是依据结垢的成分不同,由有机酸络合清洗剂、增效剂、缓蚀剂、表面活性剂复合配制成不同配方的复合水处理剂,本发明在钛材换热器硅垢清洗时,投加浓度为500～1000mg/L；pH控制在3-6之间。其清洗后的效果能够满足HG/T 2387-2007工业设备化学清洗质量标准和HG/T3778冷却水化学清洗、预膜处理规则的要求。具有低毒、安全、适用性强、使用方便等优点。(The invention discloses a titanium heat exchanger silica scale cleaning agent, a preparation method and application thereof, belonging to the technical field of environmental protection.A composite water treatment agent with different formulas is prepared by compounding an organic acid complexing cleaning agent, a synergist, a corrosion inhibitor and a surfactant according to different components of scale.)

1. The cleaning agent for the silicon scale of the titanium heat exchanger comprises 60-80% of organic acid complexing cleaning agent, 1-5% of synergist, 5-10% of corrosion inhibitor and 5-10% of surfactant.

2. The organic acid complex cleaning agent as claimed in claim 1, which is one or three of sulfamic acid, citric acid and sodium citrate.

3. The synergist according to claim 1 is one or three of sodium fluoride, ammonium fluoride and sodium sulfate.

4. The corrosion inhibitor of claim 1, which is two or three of hexamethylenetetramine, thiourea, benzotriazole and tolyltriazole.

5. The surfactant of claim 1, wherein the surfactant is one of sodium dodecylbenzene sulfonate and ammonium dodecylbenzyl chloride.

6. The preparation method of the silicon scale cleaning agent for the titanium heat exchanger as claimed in claim 1 comprises the following steps: adding 60-80% of organic acid complexing agent into a reaction kettle; then adding 5-10% of corrosion inhibitor; adding 5-10% of surfactant, finally adding 1-5% of synergist, mixing and stirring for 10-20 min, sealing and packaging.

The technical field is as follows: the invention belongs to the technical field of environmental protection, and relates to a titanium heat exchanger silica scale cleaning agent, a customized production process and a complete set of application technology thereof.

Background art: industrial cleaners are an important class of fine chemicals which are used in large quantities and which are fast-growing compared to domestic detergents. The modernized industrial chemical cleaning in China is started late. In the middle of the 70 s of the 20 th century, the foreign advanced chemical cleaning technology taking the high-efficiency metal corrosion inhibitor as the core enters China along with imported large-scale equipment, and further monopolizes the cleaning market of China for more than 10 years. Industrial cleaning is no longer a simple task, various green and environmentally friendly cleaning technologies are continuously promoted, chemical cleaning has penetrated almost all industrial fields, and the overall progress of the cleaning industry has become one of the indispensable driving forces for the economic development of the national market. Chemical cleaning can cause certain damage to the metal body while removing scale, so a cleaning agent, a corrosion inhibitor, a penetrating agent and the like need to be added in a matching manner. At present, the domestic cleaning agent is mainly inorganic acid and the like, the agent is easy to prepare poison and explode, and the safety and stability of the agent are poor.

The invention content is as follows: the invention aims to provide a cleaning agent for treating the silicon scale of a titanium heat exchanger on the premise of meeting the requirements of environmental protection and safety, and the cleaning agent can really achieve environmental protection, high efficiency, easy production and easy control in industrial application.

The invention relates to a titanium heat exchanger silica scale cleaning agent, which is a cleaning agent suitable for titanium heat exchanger silica scale with different formulas prepared by compounding an organic acid complexing cleaning agent, a synergist, a corrosion inhibitor and a surfactant according to the requirements of a titanium material, and comprises the following components: 60-80% of organic acid complex cleaning agent, 1-5% of synergist, 5-10% of corrosion inhibitor and 5-10% of surfactant.

The organic acid complex cleaning agent is one or three of sulfamic acid, citric acid and sodium citrate.

The synergist is one or three of sodium fluoride, ammonium fluoride and sodium sulfate.

The corrosion inhibitor is two or three of hexamethylenetetramine, thiourea, benzotriazole and methyl benzotriazole.

The surfactant is one of sodium dodecyl benzene sulfonate and dodecyl benzyl ammonium chloride.

The physical and chemical properties of the water treatment agent are as follows: (the following% are mass percentages)

The raw material requirements of the silicon scale cleaning agent for the titanium heat exchanger all meet the related national product standards, the cleaning agent is well known by technical personnel in the field and can be conveniently obtained in the market, and the proportioning measurement is measured by mass percent.

The general production method of the invention is as follows: adding 60-80% of organic acid complexing agent into a reaction kettle; then adding 5-10% of corrosion inhibitor; adding 5-10% of surfactant, finally adding 1-5% of synergist, mixing and stirring for 10-20 min, sealing and packaging.

The cleaning agent for the silicon scale of the titanium heat exchanger is added according to the proportion, and has the cleaning effect of HG/T2387-.

The cleaning agent for the silicon scale of the titanium heat exchanger can be widely applied to the titanium heat exchanger.

The silicon scale cleaning agent for the titanium heat exchanger is added into a system at a concentration of 500-1000 mg/L, and is matched with a metering pump for adding according to consumption by monitoring on-line pH and total iron change in order to accurately control the concentration of the agent, so that the controllability of the stability of the concentration of the water treatment agent is greatly improved, and scientific and economic management is greatly improved.

Compared with the product, the titanium heat exchanger silicon scale cleaning agent has the advantages of wide application range of ①, wide application range, wide application in various titanium heat exchangers, only adjustment of formula proportion, high scale removal rate of ②, synergistic cooperation of organic acid complexing agent and synergist, and Mg in aqueous solution²⁺、Ca²⁺③ corrosion inhibition is strong, two or three of hexamethylenetetramine, thiourea, benzotriazole and methyl benzotriazole are selected as corrosion inhibitors in the formula, the corrosion to a metal body can be effectively reduced, ④ safety is good, the added citric acid is a food additive, compared with inorganic acid, the added citric acid has no influence on the cleaning effect, the food sanitation requirement is met, and the inorganic acid basically belongs to chemicals which are easy to prepare poison and explode, and has certain danger and safety risk in use and storage.

The medicament provided by the invention is a compound medicament and is suitable for various titanium heat exchangers. The medicament of the invention does not need to add equipment, is simple and convenient to operate, has low cost and wide application.