High-density arranged mixing valve tower plate

Abstract

The utility model discloses a high-density arranged mixing valve tower plate, which belongs to the technical field of chemical tower plates. The high-density arranged mixing valve tower plate comprises a downcomer and a tower tray body, wherein a plurality of standing valve holes and floating valve holes are evenly distributed in the tower tray body, every three adjacent standing valve holes are distributed in an equilateral triangle shape, the floating valve holes are formed in the center positions among the three adjacent standing valve holes, standing valves are arranged in the standing valve holes, and floating valves are arranged in the floating valve holes. And the standing valves and the floating valves are arranged in a high-low staggered manner. The special micro floating valves are adopted to replace sieve pores, so that the leakage of part of liquid is blocked at low gas speed, and the liquid leakage of the tower plate is reduced; at a high gas speed, part of liquid brought by gas from the lower tower plate to the upper tower plate is blocked, and entrainment is reduced; by means of mixed arrangement of the standing valves and the floating valves, gas-liquid mass transfer is enhanced, and the gas speed needed by tower plate flooding is delayed; and by utilizing different heights of the standing valves and the floating valves, the uniformity of the gas content of the whole liquid layer of the tower plate is improved, gas-liquid mass transfer is facilitated, and the efficiency of the tower plate is improved.

Description

technical field [0001] The invention belongs to the technical field of chemical trays, in particular to a high-density arrangement of mixing valve trays. Background technique [0002] In the operation and production of chemical industry, oil refining, environmental protection, pharmaceutical and other industries, chemical unit operations such as rectification, absorption and desorption are inseparable. These gas-liquid and liquid-liquid mass transfer processes are mainly completed in the tower equipment, and the plate tower is used as A column is one of the most widely used separation equipment in the petroleum and chemical industry. At present, the commonly used trays in the industry mainly include sieve trays, floating valve trays and fixed valve trays. The sieve trays have the advantages of simple structure, small pressure drop, and low manufacturing cost, but there are large mist entrainment and liquid leakage. Serious, low operating flexibility, low mass transfer effic...

AI Technical Summary

Problems solved by technology

At present, the commonly used trays in the industry mainly include sieve trays, floating valve trays and fixed valve trays. The sieve trays have the advantages of simple structure, small pressure drop, and low manufacturing cost, but there are large mist entrainment and liquid leakage. Serious, low operating flexibility, low mass transfer efficiency, etc. Floating valve trays have the advantages of small liquid leakage, small mist entrainment, and large operating flexibility, but there are disadvantages such as many consumables, high cost, and easy jamming of the float valve; fixed The valve tray has the advantages of convenient manufacture, low cost, and high tray strength, but has disadvantages such as small operating flexibility, and its performance is similar to that of the float valve tray

[0003] In the experimental research process of ordinary mixing fixed valve, although the opening area on the tray was fully utilized, the leakage and mist entrainment of the tray were still very serious

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