Tooth edge float valve

A technology of float valve and tooth edge, applied in the field of float valve, can solve the problems of uneven gas holdup rate and bubble size of foam layer, unsatisfactory treatment efficiency of float valve tray, large liquid level drop, etc., to reduce the liquid level drop , Increase the gas-liquid contact area and reduce the resistance effect
CN1683043AActive Publication Date: 2005-10-19CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2005-10-19

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Abstract

The tooth edge float valve includes tabulated valve cover, liquid facing valve leg on one end of the valve cover and in the upstream position, liquid backing valve leg on the other end of the valve cover and in the downstream position, and valve feed fixed separately to the lower ends of the liquid facing valve leg and the liquid backing valve leg. The valve cover has downward bending toothed structures in the sides and the downward bending toothed structures can reduce the bubble diameter, raise the stability of the foam layer and avoid the direct spray of gas and liquid. In addition, the valve cover is provided with wedged slot to avoid the formation of gas flow eddy below the float valve, decrease liquid back mixing and lower the gas resistance of the float valve; and the liquid backing valve leg is provided with liquid guide hole for gas to drive liquid towards the outlet dam so as to reduce the liquid surface fall and decrease liquid back mixing.
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Description

(1) Technical field

[0001] The invention relates to a float valve used for a float valve tray. (2) Background technology

[0002] Float valve tray has the advantages of large operating flexibility, small mist entrainment, less liquid leakage, large processing capacity and high mass transfer efficiency, and is widely used in chemical industry, petroleum industry and pharmaceutical industry. At present, F1 valve trays and strip valve trays are commonly used in industrial production. The F1 float valve rotates continuously under the action of the air flow, causing the valve foot and the valve hole to wear, and the float valve is easy to get stuck or fall off, which affects the fluid mechanics and mass transfer performance of the tray, and even has to be shut down for maintenance. During the operation of the F1 valve tray, the air flow is sprayed from around the float valve, and the liquid phase on the plate is back mixed, which reduces the mass transfer efficiency of the tray....

Claims

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