The purpose of water treatment is to improve water quality and make it meet certain water quality standards.
According to different treatment methods, there are physical water treatment, chemical water treatment, biological water treatment and so on.
According to different treatment objects or purposes, there are two types of water treatment and waste water treatment. Water supply treatment includes domestic drinking water treatment and industrial water treatment; wastewater treatment is divided into domestic sewage treatment and industrial wastewater treatment. Among them, boiler feed water treatment, make-up water treatment, steam turbine main condensate water treatment and circulating water treatment, etc., are particularly closely related to thermal technology. Water treatment is of great significance to the development of industrial production, improvement of product quality, protection of human environment and maintenance of ecological balance.
Water treatment engineering is a project to purify, soften, disinfect, remove iron and manganese, remove heavy metal ions, and filter water that does not meet the requirements. To put it simply, "water treatment engineering" is a project to remove some substances that are not needed for production and life in water through physical and chemical means. It is to settle and filter water for specific purposes. , coagulation, flocculation, and a project of water quality conditioning such as corrosion inhibition and scale inhibition.
What are the valves for water treatment engineering?
Gate valve: The function is to cut off the water flow, and the rising stem gate valve can also see the opening of the valve from the lifting height of the valve stem.
Ball valve: used to cut off, distribute and change the direction of medium flow. For general purpose on/off valves. Not suitable for use as a throttle valve, but can be used to reduce the pressure entering or exiting the system in a partially open state.
Globe valve: The main function in the water treatment pipeline is to cut off or connect the fluid. The regulating flow of the globe valve is better than that of the gate valve, but the globe valve cannot be used to adjust the pressure and flow for a long time, otherwise, the sealing surface of the globe valve may be washed by the medium Corrosion, damage the sealing performance.
Check valve: used to prevent backflow of media in water treatment pipes and equipment.
Butterfly valve: cut-off and throttling. When the butterfly valve is used to cut off, elastic seals are mostly used, and the material is rubber, plastic, etc. When used for throttling, metal hard seals are mostly used.
Post time: Oct-19-2024