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Miniature guide float-valve

A floating valve and guiding technology, which is applied in the field of miniature guiding floating valves, can solve the problems such as the inability to eliminate the liquid stagnation area of ​​the tray, the unfavorable operation performance of the tray, and the restriction of production capacity, so as to achieve simple structure, not easy to rotate, and reduce wear and shedding Effect

Inactive Publication Date: 2006-06-28
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of strip-shaped float valve body is relatively large, and the opening ratio of the tray is small, so the processing capacity is greatly limited.
In addition, for the trapezoidal guide float valve, the slope of the two waists is too large. When the liquid flow intensity is small, the driving force on the liquid layer is too large, resulting in a negative liquid level gradient, which has an adverse effect on the operating performance of the tray. The driving force on the liquid is increased, but the stagnant area of ​​the liquid on the tray cannot be eliminated
[0006] Tsinghua University has developed a circular ADV differential float valve with a smaller valve body and a unique valve hole structure, which is beneficial to eliminate the stagnation of liquid on the tray, and its special structure prevents it from rotating during application. The valve body is not easy to wear or fall off, but the low opening rate caused by its circular structure and the liquid back-mixing phenomenon on the tray still inevitably restrict the production capacity

Method used

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Embodiment Construction

[0023] The present invention will be further explained below in conjunction with the drawings:

[0024] Such as figure 1 with 2 As shown, each valve hole 7 on the tray 6 is equipped with a micro-guided float valve corresponding to the trapezoidal micro-guided float valve is suitable for use near the arcuate area of ​​the tray, and other areas adopt rectangular micro-guided float valve, such as image 3 Shown. One valve foot 3 is bent directly when the float valve is made, and the other is bent after the float valve is installed on the tray to ensure the smooth movement of the valve body but not blow off, and limit the maximum opening of the float valve. When the float valve is opened, the air flow blown out from the guide hole 5 pushes the liquid forward, which helps to eliminate the dead zone; when the load is small, the valve body sinks and the guide hole is closed, so there will be no blown liquid under low load The negative impact of the layer. The angle between the inclined p...

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Abstract

A guiding miniature floating valve used as a mass-transfer separation unit of plate tower is composed of a valve cover with the long-strip polygonal shape and the spacing plates bent downward at its both ends, and two legs which are the extended and bent parts at the both ends of said valve cover. One of two legs has a flow guiding hole.

Description

Technical field [0001] The invention relates to a mass transfer separation element in a plate tower, more specifically a miniature guided float valve. Background technique [0002] Float valve towers have been widely used in gas-liquid mass transfer operations such as rectification, absorption, and gas stripping in the petroleum and chemical industries due to their good operating performance, high tray efficiency and large processing capacity. Applications. [0003] Divided from the mechanical configuration of the valve body, the existing valve body can be roughly divided into a round shape and a long strip shape. In actual operation, these two types of float valves have the following characteristics: [0004] The round float valve represented by the F1 type float valve has the advantages of large operating flexibility, high plate efficiency, moderate pressure drop and small leakage, but the gas from the round valve hole is blown out in all directi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D3/20
Inventor 孙津生李鑫钢徐世民宋慧平卢英辉
Owner TIANJIN UNIV