Round float valve with feet evenly distributed at 120° angle along the radial direction of the valve cover and its preparation method

Abstract

The invention relates to a circular floating valve with supporting feet evenly distributed along a valve deck by 120 degrees in the radial direction and a making method. The circular floating valve comprises the valve deck, three supporting feet and a tower plate; the supporting feet are evenly distributed along the valve deck by 120 degrees in the radial direction and welded or riveted to the valve deck, valve holes formed in the valve deck and the tower plate are each shaped like a circle, and the valve deck extends outward to form a circle of downward folded edge. A Y-shaped opening is formed in the valve deck of the circular floating valve, and the Y-shaped opening is arranged to be a fixed valve. According to the circular floating valve with the supporting feet evenly distributed along the valve deck by 120 degrees in the radial direction and the making method, the three supporting feet and the valve deck are processed and manufactured separately, the supporting feet are welded or riveted to the valve deck to enable the supporting feet to be evenly distributed along the valve deck by 120 degrees in the radial direction. The fixed valve is the Y-shaped fixed valve which is formed by being directly stamped through the valve deck. By means of the opening formed in the valve deck, a gas-liquid mass-transfer dead zone on the valve deck can be effectively reduced, the supporting feet of the valve deck are evenly distributed on the valve deck by 120 degrees in the radial direction, the contact areas of gas and the supporting feet can be effectively reduced, and therefore pressure drop of the tower plate is reduced, and the operation stability of a high tower is improved.

Description

technical field [0001] The invention relates to a structural internal part used in vapor-liquid mass transfer processes such as rectification and absorption, and a floating valve element that can effectively improve the operating elasticity and stability of the tray; especially a 120° angle between the legs along the radial direction of the valve cover A circular float valve with uniform angular distribution and a preparation method thereof. Background technique [0002] The mass transfer equipment used in petrochemical and other production processes mainly includes plate towers and packed towers; the most widely used in plate towers is valve-type trays. Compared with traditional sieve trays, valve-type trays It has greatly improved in terms of liquid leakage, mist entrainment, and mass transfer efficiency. [0003] At present, the commonly used round float valve adopts integral stamping, the valve cover and three legs are directly stamped into a flat structure from the mat...

AI Technical Summary

Problems solved by technology

This processing method has a low utilization rate of processing materials, and the bending processing gap at the folding place causes serious liquid leakage of the disc valve under low gas velocity operating conditions, and its folding method makes the legs distributed along the circumference of the valve cover, and the legs are in line with the valve cover. The gas contact area is large, resulting in a large pressure drop of the tower

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