Plane ceramic valve for chemical oxygen demand analysis meter

Abstract

The invention discloses a plane ceramic valve for a chemical oxygen demand analysis meter. The plane ceramic valve can be used for a water oxygen demand analysis meter, can convey tested water samples and strong-acid, strong-alkali and strong-corrosivity media, can bear high temperature above 180 DEG C for a long time and can achieve fast online cleaning, and the low-energy-consumption limiting translation valve technology is achieved. The plane ceramic valve is composed of a valve body, a liquid inlet connector, a liquid outlet connector, two locking nuts, two static ceramic sheets, two sealing rings, two holders, a valve rod, two guide sleeves, a cover plate, a bottom plate, a bottom plate, a motor support and a stepping motor. The plane ceramic valve is reasonable in medium channel design, sealing and valve rod structure and small in resistance, the stepping motor capable of automatically turning off a power source is adopted, the running energy consumption of the valve is greatly reduced, all the components of the valve are of a detachable and washable structure, online cleaning is facilitated, parts involved in a medium channel are made of high-abrasion-resisting and high-temperature-resisting materials, and the rest of parts are made of stainless steel.

Description

technical field [0001] The invention relates to a strong corrosion-resistant, high-temperature-resistant, low-energy-consumption ceramic valve that can be quickly cleaned online for a chemical oxygen demand analyzer, and belongs to the technical field of special valve manufacturing. Background technique [0002] In the chemical oxygen demand analyzer, various tested water samples, strong acids, strong alkalis, and strong corrosive reagents need to be sent to the reaction chamber, and the maximum temperature reaches 180°C. Ordinary electromagnetic stainless steel valves have problems such as severe corrosion of parts, poor high temperature performance, high energy consumption, poor reliability, and short service life under high temperature and high corrosiveness. Contents of the invention [0003] The purpose of the present invention is to provide a flat ceramic valve, which can be used in water quality oxygen demand analyzers, can transport tested water samples, strong aci...

AI Technical Summary

Problems solved by technology

Ordinary electromagnetic stainless steel valves have problems such as severe corrosion of parts, poor high temperature performance, high energy consumption, poor reliability and short service life under high temperature and high corrosiveness.

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