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>Equipment Working Principle
> The dosing device uses a metering pump as the main dosing equipment, a chemical tank, a stirrer, a liquid level gauge, a safety valve, a check valve, a pressure gauge, a filter, a buffer, Pipes, valves, bases, escalators, automatic monitoring systems, power control systems, etc. are assembled on a common platform according to process flow requirements to form a module, the so-called skid-mounted combined unit.
b > The dosing device adopts an electromechanical integrated structure. It can be divided into fixed type and mobile type (trolley type) in terms of installation. Each type of dosing device is equipped with a stirring system, dosing medicine system and automatic control system. Several fixed skids can be combined into a whole, and coupled with the frequency conversion control system, local control, remote automatic control, and manual and automatic conversion of dosing can be realized. It has the advantages of compact structure, small size, low noise, stable operation, simple installation, and easy operation and use.
b >Classification of dosing devices
>Dosing devices are also called dosing systems and dosing equipment.
>Dosing device is a complete set of devices that injects chemical liquid into various systems according to the process flow. The device can be divided into three categories according to the use occasions.
>Oilfield dosing device. It is mainly used to inject flocculants, scale inhibitors, corrosion inhibitors, demulsifiers and other chemicals into the wellhead and other systems on the platform during oil extraction.
>, Boiler dosing device. It can be used to add ammonia and hydrazine to boiler feed water, add ammonia and hydrazine to condensate water, add ammonia and hydrazine for shutdown protection, and add phosphate to steam boilers. It is mainly used in power plants and power stations.
>, Water treatment and dosing device. Add chemicals to tap water, wastewater, and sewage during the water treatment process. Mainly used in processes related to water supply and drainage, environmental protection and other processes. Such as water plants, hotels, restaurants, swimming pools, sewage treatment plants, etc.
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