Yi【Electric temperature and pressure reducer & integrated dosing unit】

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The last edit to this post was made by ztj1118 on 2015-7-20 at 22:16. Chemical dosing devices – common types: 1. Chemical water makeup and condensate ammonia dosing systems. The ammonia dosing system allows for fully automatic control； The preparation of ammonia solution can be carried out either manually or under automatic control. When the liquid level in the solution tank falls below a set value, the water inlet valve for the tank opens automatically; it closes again when the level reaches the desired height. The amount of ammonia added can also be controlled automatically, rather than manually. Through a PLC-based control system that performs PID calculations, an inverter is used to regulate the dosage of ammonia supplied by the metering pump, thereby achieving fully automatic dosing. 2. Boiler water phosphorus addition and salt preparation system: For preparing the phosphate solution, trisodium phosphate is directly added to the dosing area in the solution tank; a mixer is started to facilitate dissolution. The amount of phosphate added can be controlled either manually or in a fully automatic manner. Through a PLC control system that performs PID calculations, an inverter is used to regulate the flow rate of the phosphorus metering pump, thereby achieving automatic dosing. Application areas: Boiler water treatment systems, circulating cooling systems, central air conditioning circulating water systems, raw water pretreatment systems, and wastewater treatment systems in the thermal power generation industry ； 　　Water treatment systems for furnaces in the petroleum and chemical industries, circulating cooling systems, chemical additive dosing systems, as well as wastewater treatment and disinfection systems for industries such as healthcare and electronics ； 　　Municipal water supply, swimming pools, water treatment plants, sewage treatment, disinfection of water for building use ； 　　Disinfection for industrial circulating water and industrial wastewater treatment ； 　　Liquid dosing systems for other related industries. Considerations for selection 　　1. When choosing a dosing unit, users should first determine the appropriate specifications based on the amount of solution that needs to be added to the system (including parameters of the metering pump, the volume of the mixing tank, the volume of the solution tank, and site conditions). After that, they should decide on the dosing method, with \"one in use and one as backup\" or multiple units in use along with one backup being common options ； 　　2. Select the material of various components of the dosing unit as needed (stainless steel, carbon steel, non-metallic materials), the type of metering pump (diaphragm pump, plunger pump), or the parameters of the chemical to be dosed (name, concentration, temperature, density, viscosity, corrosivity, etc.). 3. Specify how many units and pumps are required for the system ； 　　4. Is the metering pump a plunger pump or a diaphragm pump? ； 　　5. Metering pump flow rate and pressure ； 　　6. Is the system manually controlled or automatically controlled? ； 　　7. Other special requirements for the chemical dosing unit. Chemical dosing devices are primarily used for the treatment of water in power plants, such as feedwater, boiler water, circulating water, and wastewater; they can also be applied in industries such as petroleum, chemicals, environmental protection, and water supply systems. The modular dosing unit consists mainly of a solution tank, metering pump, filter, safety valve, check valve, pulse damper, water level gauge, control cabinet, etc., all of which are integrally installed on a base. The user only needs to place the modular chemical dosing unit in the dosing room, connect the dosing pipes, and power it on to get it operational. This factory-prepared complete system **reduces the workload associated with design and on-site construction, while providing a reliable guarantee for the quality, safety, and efficient operation of the entire unit.