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

Active Publication Date: 2005-10-19
CHINA PETROLEUM & CHEM CORP +1
View PDF1 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to overcome the disadvantages of unsatisfactory treatment efficiency of valve trays, high pressure drop of trays, uneven gas holdup rate and bubble size of foam layer, and large liquid level drop in

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Tooth edge float valve
  • Tooth edge float valve
  • Tooth edge float valve

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example one

[0028] Reference figure 1 , figure 2 , A number of trays 1 equipped with the tooth edge float valve of the present invention are installed in the vertical tower 2 in sequence. The liquid is introduced from the liquid supply line 3 to the upstream end of the uppermost tray. The downcomer 4 leads the liquid from the downstream end of a higher tray to the upstream end of the adjacent lower tray. The gas and gas supply line 5 is introduced below the bottom tray, and the gas enters the liquid on the tray through the toothed float valve on the tray. The top of the vertical tower is provided with a gas outlet 6 and the bottom is provided with a liquid outlet 7. There is a liquid receiving area 8 on each tray, which receives the liquid from the downcomer 4, and the liquid comes out of the downcomer 4 and falls into the liquid receiving area 8 and then turns to flow to the bubbling area 9 with tooth edge float valve. . A valve hole 10 is opened in...

Example Embodiment

[0034] Example two

[0035] Reference image 3 , 4, A wedge-shaped groove 16 is opened on the valve cover 10. The wedge-shaped groove 16 can guide the gas to flow on both sides of the valve hole of the upper layer of the tray, avoid the formation of air vortex under the float valve, reduce liquid backmixing, and reduce the resistance of the gas through the float valve. The shape of the cross section of the wedge groove 16 can be various, such as Figure 7-9 V-shaped, arc-shaped, inverted trapezoid, etc. shown.

[0036] The rest of the structure and implementation are the same as the first embodiment.

Example Embodiment

[0037] Example three

[0038] Reference image 3 , Figure 4 A liquid guide hole 17 is opened on the back liquid valve leg 13, and the liquid guide hole 17 can push the liquid to flow to the outlet weir through gas, which reduces the liquid level drop and liquid backmixing. The liquid guide hole 17 is opened on the back liquid valve leg. When the air volume passing through the float valve is small, the float valve does not float, and the liquid guide hole 17 is below the tray. Therefore, the opening of the liquid guide hole 17 will not increase the float. The lower operating limit of the valve tray. The shape of the liquid guide hole 17 can be various, such as Figure 16-21 The circle, ellipse, rectangle, trapezoid, triangle, diamond, etc. shown.

[0039] The rest of the structure and implementation are the same as the first embodiment.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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.

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B01D3/20
Inventor 姚克俭王良华俞晓梅
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap