A disc-shaped valve tray

Abstract

The invention relates to a disc-shaped floating valve tray. The tray comprises a tower plate and floating valves capable of moving up and down. The tower plate is provided with mounting holes for mounting the floating valves. The floating valves comprise circular valve covers arranged above the tower plate and valve legs extending downwards from the peripheries of the valve covers to the position below the tower plate. The valve legs are distributed at intervals along the peripheries of the valve covers. Each valve cover is provided with at least two first tongue holes arching upwards. The peripheries of the valve covers are provided with saw-tooth edges turned downwards. The saw-tooth edges of the valve covers are used for abutting against the upper surface of the tower plate when the floating valves fall down, and the tower plate is provided with a plurality of second tongue holes. The bottom face of each valve cover is fixedly provided with a circle of protrusion. The first tongue holes are formed in the protrusions of the valve covers. The valve covers are filled with polystyrene foam layers. The disc-shaped floating valve tray has the advantages that air flow is dispersed, dense and even, and air and liquid are in full contact.

Description

technical field [0001] The invention relates to a tray, which belongs to the technical field of general physical separation operation devices. Background technique [0002] Circular valve tower (also known as disc-shaped valve tower) is a new type of tower with simple structure, low manufacturing cost, and can adapt to common material conditions. It is one of the most widely used tower types in the chemical and oil refining industries. one. The performance and technical level of the tower equipment in the valve tower directly affect the output, quality, recovery rate, economic benefits and other aspects of the product. [0003] The circular float valve tower is characterized by installing a float valve that can move up and down at each mounting hole. When the gas velocity in the installation hole is high, the float valve is lifted up, and when the air velocity is low, the float valve will drop due to its own weight. The lifting position of the float valve is automatically...

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Problems solved by technology

[0004] Although the trays of circular floating towers have the advantages of high mass transfer efficiency and high operating flexibility, the applicant found that in industrial production, they still have the following disadvantages: 1) Due to the irregular rise of the air flow, the float valve has a large impact on the air flow. The treatment is not ideal, the gas flow is unevenly dispersed and the gas-liquid contact is insufficient; 2) Because the float valve cannot be installed on the edge of the tray, it is easy to generate a mass transfer dead zone, so that the gas-liquid contact in this area is not sufficient

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