Detergent for stainless steel heat exchange coil pipe of industrial fermentation tank and preparation method thereof

Abstract

The invention discloses a detergent for a stainless steel heat exchange coil pipe of an industrial fermentation tank and a preparation method thereof, and belongs to the technical field of chemical contaminant release. The detergent consists of citric acid, acetic acid, a penetrating agent JFC-E, coconut oil diethanoamine condensate, sodium laurylsulfate, peregal O-10, 2-thiol benzothiazole, thiourea, quadrol tetramethylene sodium ibandronate, sodium fluoride, hydrofluoric acid, hydrochloric acid and deionized water. All the components are mixed and uniformly stirred to obtain a product. The detergent is green, environment-friendly, good in contaminant release effect, strong in detergency, convenient to use and high in biodegradation rate; in addition, the detergent has extremely low corrosion rate to equipment.

Description

technical field [0001] The invention relates to the technical field of chemical descaling, in particular to a cleaning agent suitable for stainless steel heat exchange coils of industrial fermentation tanks and a preparation method thereof. Background technique [0002] Gelatinization, saccharification and other processes in industrial fermentation require heat exchange such as heating or heat preservation. Stainless steel heat exchange coil is a commonly used heat exchange equipment. When the coil performs heat exchange, the heat exchange medium industrial water is used in closed circuit circulation. During the heat exchange operation, there is no contact with raw materials and products, and no pollution to the fermentation material. It has the advantages of quickness and simplicity, and is widely used in the fermentation industry. [0003] When the coil is used for heat exchange, the industrial water used as the heat exchange medium is recycled in a closed circuit. As the ...

AI Technical Summary

Problems solved by technology

The disadvantage of this technology is that a high-pressure power source is required, and the cleaning effect of the elbow is not good.

[0006] 2. Ultrasonic cleaning technology: The ultrasonic generator converts the super-audio frequency electric energy into the mechanical vibration of the same frequency and transmits it to the cleaning agent. The ultrasonic wave generates tiny bubbles to form a cavitation effect, which continuously acts on the surface of the object to make the dirt fall off. The cleaning effect is better, but The cost of cleaning is higher

The cleaning effect of this technology is good, but the supporting devices required are more complicated, and usually need to be equipped with PIG tracking and positioning, transmitting and receiving devices, and power source pressure monitoring devices; in addition, PIG cleaning technology is selective for pipes, and the pipe diameter should be greater than 50mm The cut-off valve on the pipeline should be a ball valve or a flat gate valve

It is not difficult to see that this method has high cleaning costs and high requirements for operating technology, which is not conducive to large-scale promotion

[0008] 4. Acid cleaning technology: one or more of industrial hydrochloric acid, sulfuric acid and nitric acid is used as cleaning agent. The cleaning effect of strong acid cleaning agent is good, but the cleaning agent is highly acidic and highly corrosive to metal equipment. There are security risks

There are some practical applications in foreign countries, and the application effect of this technology is good, but in practical applications, the temperature and pH control requirements are relatively high (for example, the process conditions pH9. ~9.5, temperature 60~80℃), high cleaning cost, little domestic promotion

[0010] 6. Mechanical descaling method: use such as iron brazing and hammer to beat, the disadvantage is that it is labor-intensive and time-consuming, the cleaning effect is average, and improper operation will cause damage to the equipment

[0011] Of course, there are other cleaning technologies in use, but at present these cleaning technologies always have one or another deficiency, such as some need to be equipped with special equipment, provide high pressure, some will produce unpleasant sound waves, and some are harmful to the pipe fittings to be cleaned. The shape has requirements, some cleaning effects are average, etc., and so on.

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