CN108619863A - The tower made of ellipse head sieve pore cap plate - Google Patents

Abstract

Ellipse head calotte sieve tray tower：It is made of tower top, tower body and bottom of tower.Master unit is that ellipse head sieve pore cap column plate is to be welded on percent opening 40 60% on disk by being equipped with porous ellipse head, 40% or more hole is equipped between each hole cap on steel plate, it in its lower half portion is to be equipped at porous camber line to slightly higher of lower piece of column plate discharge weir top to meet at tower body into enclosed shape that the baffle of tower tray lower end, which is downspout, and liquid is spilt by sieve pore；Tower body is entirely novel invention；It does not set and holds liquid zone.

Description

The tower made of ellipse head sieve pore cap plate

Technical field：Chemical industry；Environmental protection；Gas is absorbed, washing, is sprayed, VOCs is administered

Background technology：Absorption tower be widely used in oil, chemical industry, field of environment protection gas absorb, washing, spray, at VOCS In reason, absorption tower is divided into board-like and two big type of packed tower：Packed tower is chiefly used in handling small gas flow, when the large-minded institute of processing When the tower diameter needed is big, column efficiency degradation can be made because gas-liquid is unevenly distributed；In addition packed tower also have pressure drop it is big, The defects of entrained liquid is serious.In big tower diameter, plate column is inevitable choice, the people in the field of gas absorption at present only can or Can only select be mostly：The rotating stream tray scrubber that treating capacity is big, few entrained liquid but efficiency are unstable.This patent has selected efficiently The ellipse head sieve pore cap column plate of rate, this column plate is because being equipped with downflow weir so that the liquid holdup of plate layer is stablized, to the pressure of whole tower Power drop becomes definite value, and pressure tower drop is more small than with high packed tower, and the empty tower gas velocity of permission is higher by perhaps than the packed tower of same diameter It is more.Yin Tanei《Ellipse head sieve pore cap column plate》The patent that the present inventor is applying is and column plate plane in most sieve pores It (not only increases mass-transfer efficiency for non-vertical direction and also effectively reduces entrained liquid).Tower is simple to manufacture, cost and system It is little to make difficulty.Because every layer of column plate is exactly a liquid distribution trough, therefore liquid distribution trough is not set separately.Therefore structure tower without Liquid distribution trough therefore liquid are gone directly bottom of tower by tower top, reduce many places inlet tube-partially liq flow for having liquid distribution trough It is short, therefore the washing effect in same amount of liquid significantly improves, and is used in downspout《Ligulate sieve pore downspout》The present inventor The patent applied.The relatively more existing plate column currently in use of this patent, has liquid-gas contact area big；Most of liquid-gas Mass-transfer efficiency is improved to be non-perpendicular when contact, and advantageously reduces the generation of idle work-entrainment, is the present inventor's tower One of device series new idea.Invention content with the tower that ellipse head sieve pore cap plate is done be novel absorbent tower be by tower top, tower body, Bottom of tower three parts composition.The content of present invention：1, it is to use《Ellipse head sieve pore cap column plate》(separately applying) is master unit- The 0.6-1.0 that distance between the ellipse head of each punching is aperture R outside end socket is welded on the disk of garden by the ellipse head punched Times steel plate is equipped with 40% or more hole, and the internal diameter of tower tray is slightly less than tower internal diameter (an arc string has been lacked on tower tray) vacancy about The arc string of 10% tray area is downflow weir -- it is welding one is hung down on tower tray string

Manufacture material：Steel；Stainless steel, plastics, plastimets etc..The scope of application；Tower diameter 0.6-5.5m is (excellent Select 2-4.5m), normal pressure, room temperature.

Specific implementation mode：It is by tower top, tower body, bottom of tower that the tower made of ellipse head sieve pore cap plate, which is novel absorbent tower, Three parts form.Tower top is that gas vent is connect with pipe flange (see Fig. 1)；Here is demister；It is inlet tube still further below Tower is led to, feeds what the lower half portion of straight tube was directly punched.Tower body is often to save multilayer column plate staggered by multiple tower sections, main Component column plate is《Ellipse head sieve pore cap column plate》(separate case)-is welded on by the ellipse head of the DN80-150 punched on the disk of garden Distance is that the 0.6-1.0 times of steel plate of the outer aperture R of end socket is equipped with 40% or so hole, tower tray between the ellipse head of each punching Internal diameter is slightly less than tower internal diameter (an arc string has been lacked on tower tray) vacancy arc string of about 10% tray area is downflow weir -- It is that perpendicular to the baffle of tower tray, baffle top exists higher than tower tray plane 40-70mm (being known as liquid holdup) for welding one on tower tray string Tower tray lower end is《Ligulate sieve pore downspout》(separate case) starts under the downspout elder generation plate washer is straight at about 1/2 tower layer height It is equipped on plate washer porous and curves into ligulate and tower wall and join into closed pipe at 1.1-1.3 times of lower layer's height of weir plate Son, liquid are only spilt by the hole on ligulate face；Liquid-bearing pan is not set on tower tray；The top bottom of tower (see Fig. 1) passes through flange and tower Body is connected, and is that air inlet pipe (having flange to connect the gas prepared into tower outside tower) enters the interior top of tower to import under connecting flange The tower inner wall of another side, and it is provided with the hole that area is more than air inlet pipe sectional area in the middle and lower part for entering pipe in tower, in pore size distribution The heart should be identical as tower center.It is outlet tube still further below, sewage draining exit is equipped in tower bottommost.

Description of the drawings：Fig. 1 is the assembling schematic diagram of the tower made of ellipse head sieve pore cap plate, and wherein tower body is that more piece is more Layer；Nothing holds liquid zone on column plate；Fig. 2 is that ligulate hides liquid plate schematic diagram；Fig. 3 is the schematic diagram of ellipse head sieve pore cap column plate.

Claims (2)

1. the tower made of ellipse head sieve pore cap plate：It is completely new tray absorption columns, by tower top, tower body and bottom of tower three parts group At：The flange that wherein tower top-is connect by gas outlet, demister, inlet tube and liquid distributor and with tower body forms；Bottom of tower -- Top is connected by flange with tower body, be under connecting flange air inlet pipe (enter tower in top to the another side of import tower inner wall, And it is provided with the square hole that total sectional area is more than air inlet pipe sectional area, the hole center centers Ying Yuta phase in the middle and lower part for entering pipe in tower Together)；The outlet tube that air inlet pipe is parallel in air inlet pipe lower part is connected to outside tower；It is equipped with sewage draining exit in tower bottommost；Principal part Part tower body -- be that multitower section often saves that have multilayer column plate plate layer height be 40-70mm, column plate is oval calotte sieve tray -- be by It beats porous ellipse head and is welded on the hole for being equipped with 40-60% between each calotte of garden disk on steel plate；About 10% tower of arc string on tower tray Disc area is downflow weir -- it is perpendicular to the baffle of tower tray, baffle top is higher than tower tray plane 40- for welding one on tower tray string 70mm, the baffle in tower tray lower end are downspouts -- be perpendicular to column plate to 1/2 tower layer height when start to curl up and be equipped with 40- The ligulate in 60% hole meets at tower wall in 1.1-1.3 times of downflow weir eminence becomes sealed tube, and liquid is spilt by sieve pore；On column plate It does not set and holds liquid zone.

2. manufacture material：Steel；Stainless steel, plastics, plastimets etc.；The scope of application；Tower diameter 0.6-5.5m (preferably 2- 4.5m)；Normal pressure, room temperature.