CN2796792Y

CN2796792Y - Corrugated guiding float valve tower plate

Info

Publication number: CN2796792Y
Application number: CN 200520042783
Authority: CN
Inventors: 赵培; 张秋香; 张杰旭; 李玉安; 熊丹柳
Original assignee: East China University of Science and Technology
Current assignee: East China University of Science and Technology
Priority date: 2005-06-22
Filing date: 2005-06-22
Publication date: 2006-07-19
Anticipated expiration: 2015-06-22

Abstract

The utility model relates to a wave guide tower plate for a float valve, which comprises the tower plate (5) which is provided with a valve hole (6) and the float valve arranged in the valve hole (6). The utility model is characterized in that the float valve comprises a Y-shaped wave-shaped valve sheet (1) and valve legs (2) arranged on the two ends of the valve sheet (1); the valve legs (2) are connected with the valve sheet (1) to form a whole; a guide hole (3) is arranged on a Y-shaped wave-shaped inclined plane; the two ends of the valve legs (2) are provided with flanging (7); the ends of the valve legs (2) are provided with valve feet (8). The cross section of gas channels arranged on the two sides of the float valve of the utility model is large, and the treatment capability and the efficiency of the tower plate are obviously increased. The contrast test indicates that the entrainment, the leakage and the pressure drop of the tower plate of the utility model are greatly reduced, and the efficiency of the tower plate, the treatment capability, the mass transfer driving force and the operation elasticity are greatly increased, and meanwhile, the utility model has the advantages of easy manufacture and convenient installation. The utility model can be used for gas-liquid mass transfer separation towers, such as an absorption tower, a rectification tower, etc.

Description

The ripple guide float valve tray

Technical field

The utility model relates to the column plate that column plate vapour-liquid contact element is installed in a kind of various vapour-liquid mass knockout towers of use, is specifically related to a kind of guide float valve tray.

Background technology

The vapour-liquid mass knockout tower is that widely used equipment in chemical industry and the light industry is taken out in oil refining, chemical industry, stone, is equipped with in the valve tower of column plate vapour-liquid contact element, and most widely used float valve is circular float valve, i.e. FI type float valve and rectangle float valve.

For circular valve plate, because gas is by blowing out around the float valve, not only there is gas-liquid between valve and the valve phenomenon that liquidates, and the gas that part blows out is opposite with the liquid flow path direction, form liquid dispersion, increase the resistance of liquid flow on the plate, thereby caused gradient of liquid level to increase, reduced plate efficiency.Simultaneously and since when operation circular float valve rotation phenomenon, valve leg serious wear causes float valve to come off, thereby makes the column plate can not normal running.For rectangle guide float-valve attachment strap, though there is not the float valve obscission, but most of gas blows out along two side directions of float valve, only small part gas blows out from the targeting port on the valve block, liquid flow had certain impetus, phenomenon is serious but vapour-liquid liquidates, and vapour-liquid two contacts inhomogeneous, has influenced the further raising of column plate disposal ability.

Summary of the invention

The utility model technical issues that need to address are to disclose a kind of ripple guide float valve tray, to overcome the above-mentioned weakness that prior art exists.

Ripple guide float valve tray of the present utility model, comprise column plate that is provided with valve opening and the float valve that is installed in the valve opening, it is characterized in that, said float valve comprises the undulatory valve block of herringbone and is arranged on the valve leg that valve block two ends and valve block fuse, the width both sides of valve block are provided with the valve limit, make the width of the width of valve block greater than the valve leg, are provided with 0～35 pilot hole on the inclined-plane of lambdoid ripple, the both sides of valve leg are provided with flanging, and the end of valve leg is provided with the valve pin.

During installation, the airflow direction that the pilot hole on the inclined-plane of lambdoid ripple blows out is identical with the liquid flow path direction, and float valve is placed in the valve opening, then the valve pin is pulled directly, by cooperating of valve pin and valve limit, float valve can be fixed on the column plate with floating.

Ripple guide float valve tray of the present utility model, during operation, air-flow that blows out from ripple guide float-valve both sides and the liquid stream on the column plate are in contact with one another, the air-flow that from the pilot hole that the floating sheet of ripple is offered, blows out on the other hand, can flow more abundant, the more uniform contact with liquid, and gas component velocity is vertically upward reduced, the gas passage sectional area of float valve both sides is big, obviously reduced liquidating of vapour-liquid two-phase, improved the hydrodynamic performance of column plate, column plate disposal ability and efficient are significantly improved.

The utility model employing water and carbon dioxide～air, cyclohexane～n-heptane system, with FI type column plate, guide float valve tray contrast test under same operating condition, the result shows, the entrainment of ripple guide float valve tray described in the utility model, leakage, plate pressure drop have had reduction by a relatively large margin than existing column plate, plate efficiency, disposal ability, mass transfer force and operating flexibility are greatly improved, simultaneously, making is easy, easy for installation.

Ripple guide float valve tray of the present utility model can make the gas-liquid two-phase even contact under equal operating condition, reduce the gradient of liquid level on the column plate, improves mass transfer effect, can be widely used in the vapour-liquid mass knockout tower, as absorption tower, rectifying column etc.

Description of drawings

Fig. 1 is the ripple guide float valve tray structural representation after installing.

Fig. 2 is the ripple guide float-valve structural representation before installing.

Fig. 3 is that A-A among Fig. 2 is to schematic diagram.

Fig. 4 is that B-B among Fig. 2 is to schematic diagram.

Fig. 5 is that C-C among Fig. 3 is to schematic diagram.

The specific embodiment

In conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5 as seen, ripple guide float valve tray of the present utility model, comprise column plate 5 that is provided with valve opening 6 and the float valve that is installed in the valve opening 6, it is characterized in that, said float valve comprises the undulatory valve block 1 of herringbone and is arranged on the valve leg 2 that valve block 1 two ends and valve block 1 fuse, the width both sides of valve block 1 are provided with valve limit 4, are provided with 0～35 pilot hole 3 on the inclined-plane of herringbone ripple.

Valve block 1 length is 30～120mm, and width is 16～36mm, and valve leg 2 highly is 8～28mm; The both sides of valve leg 2 are provided with flanging 7, and the end of valve leg 2 is provided with valve pin 8.

Further, herringbone ripple crest is 3～10mm apart from L;

Further, the herringbone apex angle ss of herringbone ripple ripple is 60 °～150 °;

Further, the aperture of pilot hole (3) is 1～5mm.

Further, 0～2 pilot hole (3) is offered on air current flow direction that blows out from valve opening and liquid flow path direction angle α everyone the font inclined-plane that is 10 °～90 °.

Claims

1. ripple guide float valve tray, comprise the column plate (5) that is provided with valve opening (6) and be installed in float valve in the valve opening (6), it is characterized in that, said float valve comprises the undulatory valve block of herringbone (1) and is arranged on valve block (1) two ends and valve leg (2) that valve block (1) fuses, the width both sides of valve block (1) are provided with valve limit (4) and are provided with 0～35 pilot hole (3) on the inclined-planes of herringbone ripple, the both sides of valve leg (2) are provided with flanging (7), and the end of valve leg (2) is provided with valve pin (8).

2. ripple guide float valve tray according to claim 1 is characterized in that, valve block (1) length is 30～120mm, and width is 16～36mm, and valve leg (2) highly is 8～28mm.

3. ripple guide float valve tray according to claim 2 is characterized in that, herringbone ripple crest is 3～10mm apart from L.

4. ripple guide float valve tray according to claim 3 is characterized in that, the herringbone apex angle ss of herringbone ripple ripple is 60 °～150 °.

5. ripple guide float valve tray according to claim 4 is characterized in that, the aperture of pilot hole (3) is 1～5mm.

6. ripple guide float valve tray according to claim 5 is characterized in that, 0～2 pilot hole (3) is offered on everyone the font inclined-plane that air current flow direction that blows out from valve opening and liquid flow path direction angle α are 10 °～90 °.