CN201171919Y

CN201171919Y - Novel percolation type composite column plate

Info

Publication number: CN201171919Y
Application number: CNU2007203060033U
Authority: CN
Inventors: 田原宇; 乔英云; 梁鹏; 盖希坤
Original assignee: Shandong University of Science and Technology
Current assignee: Shandong University of Science and Technology
Priority date: 2007-11-23
Filing date: 2007-11-23
Publication date: 2008-12-31
Anticipated expiration: 2017-11-23

Abstract

The utility model provides a novel dual-flow type ultra-large compound tray. The novel dual-flow type ultra-large compound tray is mainly characterized in that dual-flow sieve plates which have the same opening ratio and the interlaced arrangement are arranged on the dual-flow tray, a layer of structured packing with the height of 0-250mm is arranged under the dual-flow tray, the space in the tower is used completely, the gas-liquid mass transfer of the dual-flow tray is improved, the pressure drop of the tray is lowered, the entrainment is reduced, and the processing capacity, the operation flexibility and the separation efficiency of the dual-flow tray are improved. The structure of the novel dual-flow type ultra-large compound tray is that the dual-flow tray has 20-60 percent of sieve holes, the upper part at the distance of 3-6mm is provided with a sieve plate with the same opening ratio, the sieve holes can be circular holes with the diameter 3-20, rhombic holes with the equal opening area, or strip-shaped bulges with the slotted side which are formed on the plate with 2-10mm, the circular holes, the rhombic holes, or the strip-shaped bulges on the sieve plate have the interlaced arrangement or the semi-interlaced arrangement based on the circular holes, the rhombic holes, or the strip-shaped bulges on the dual-flow tray; a layer of structured packing with the height of 0-250mm is fixed under the dual-flow tray by the supporting beam of the dual-flow tray; during the installation process, the compound trays are fixed by upper supporting beams of the sieve plate, and the trays and the supporting rings are fixed by connecting components.

Description

A kind of novel turbogrid type composite column plate

One, technical field

The utility model relates to a kind of novel turbogrid type composite column plate, belongs to the architecture advances of throngh flowing type tray.

Two, background technology

In petrochemical industry, industrial departments such as petroleum refining, chemical industry, light industry, environmental protection, medicine and atomic energy, column plate and filler are widely used in unit processes in chemical synthesis such as distillation, absorption, extraction, absorption, washing, cooling.Advantages such as filler has the separative efficiency height, and pressure drop is little, and disposal ability is big, but cost is bigger, and operating flexibility is little, supporting tower internals is required high; Operating flexibility of tray is big, the anti-obstruction, and cost is low, and separative efficiency is relatively large, but pressure drop will be bigger, and disposal ability is lower.Column plate is by having or not downspout can be divided into overflow-type column plate and throngh flowing type tray, and by contrast, existing throngh flowing type tray is simple in structure, space availability ratio height in the tower, and cost is low, and disposal ability is big, but vapour-liquid is short time of contact, and mass-transfer efficiency is low, and operating flexibility is little.The ideal column internals should have the advantage of column plate and filler simultaneously, i.e. low pressure drop, high efficiency, big operating flexibility, anti-obstruction, low-cost, big disposal ability and Ta Nei space availability ratio height.

Three, summary of the invention

The purpose of this utility model just is to avoid the deficiencies in the prior art, and a kind of novel turbogrid type composite column plate is provided.

The purpose of this utility model is by increase the sieve plate of identical percent opening on dual-flow tray, be provided with below dual-flow tray that one deck structured packing realizes, it can make full use of space in the tower, improve the vapour-liquid mass situation of dual-flow tray, reduce plate pressure drop, reduced entrainment, improved the disposal ability of dual-flow tray, operating flexibility and separative efficiency.It is mainly by dual-flow tray, formation such as sieve plate and structured packing, it is characterized in that on dual-flow tray, having 20～60% sieve aperture, the distance of 3～6mm is provided with the sieve plate of identical percent opening at an upper portion thereof, sieve aperture can be the suitable diamond hole of φ 3～φ 20 circular holes opened on the thick plate of 2～10mm or perforated area, the strip bulge that cracks in the side, wrong row of the circular hole of the circular hole on the sieve plate, diamond hole or strip bulge and dual-flow tray, diamond hole or bar hole or half wrong row; Below dual-flow tray by the fixedly high structured packing of one deck 0～250 of self brace summer; During installation between composite plate plate and the plate upper support beam by sieve plate fix, fix by connector between plate and the bracing ring.

The novel turbogrid type composite column plate that the utility model proposed, since adopt put sieve plate and under add structured packing, made full use of space in the tower, increase at double air-flow time of contact, strengthened air-flow mixing intensity and contact interface renewal rate, improved plate efficiency, simultaneously because the existence of sieve plate makes the percent opening can be up to 60%, improve the disposal ability and the operating flexibility of column plate greatly, reduced plate pressure drop and entrainment; Throngh flowing type tray serves as the liquid distribution trough of structured packing effectively, liquid is laterally mixed reach the desired perfect condition of filler; Conversely, the gas distributor of column plate has been served as in structured packing again, further improves the vapour-liquid mass situation, and rational and effective is utilized the advantage of column plate and filler, has reached both perfect adaptations.

Four, description of drawings

Accompanying drawing Fig. 1 is a structural representation of the present utility model, and Fig. 2 is the column plate connection diagram.

The drawing of accompanying drawing is established bright as follows:

1. dual-flow tray 2. sieve plates 3. structured filling material layers 4. fixed mounts 5. bolts 6. connectors

Describe the concrete structure of foundation novel throngh flowing type tray provided by the utility model in detail below in conjunction with drawings and Examples.

Five, the specific embodiment

Embodiment 1, the utility model is by dual-flow tray 1, sieve plate 2 and structured packing 3 are formed, column plate is that thickness of slab is to have 20～60% diameter or sieve aperture or the diamond hole of equivalent diameter 3～20mm on the flat board of 2～10mm, sieve plate 2 is the flat board of thickness of slab 2～10mm, have corresponding sieve aperture or diamond hole equally with the identical percent opening of dual-flow tray, wrong row of sieve aperture on sieve plate and the dual-flow tray or diamond hole or the wrong row of part, link together by fixed mount 4 and dual-flow tray 1, structured packing 3 is the thick plate ripple arranged packing of 100mm, be fixed on the below of dual-flow tray by dual-flow tray self brace summer, the space height is 5～100mm between column plate and the filler; Utilize the upper support beam of sieve plate to be connected and fixed during installation between composite plate plate and the plate, fix by connector between plate and the bracing ring by bolt.

Embodiment 2, the utility model is by dual-flow tray 1, sieve plate 2 and structured packing 3 are formed, and dual-flow tray 1 is for having wide 6～20mm of 20～60%, the bar hole of long 30～200mm on thickness of slab 2～10mm flat board, sieve plate 2 is the flat board of thickness of slab 2～10mm, same dashing has 20～60% wide 6～20mm, the strip bulge that cracks in the side of long 30～200mm, and strip bulge and the wrong row of institute's column plate cylindrical void that covers, half mistake are arranged, sieve plate forms by fixed mount 4 with dual-flow tray and is connected, and structured packing 3 is 150mn; Thick mellapak packing is fixed under the dual-flow tray by column plate self-supporting beam, and the hole height is 20～100mm between filler and the column plate; Utilize the upper support beam of sieve plate to fix during installation between composite plate plate and the plate, fix by connector between plate and the bracing ring by connector.

Novel turbogrid type composite column plate provided by the utility model has the following advantages: (1) takes full advantage of space in the tower, every layer of column plate The vapour-liquid contact has liquid bubbling mass transfer simultaneously, and liquid drenches and falls mass transfer and liquid film turbulent mass transfer. (2) vapour-liquid contact mixing intensity improves greatly, The interface is upgraded probability and is greatly strengthened, and increase time of contact, and the contact of falling the ship shape when especially vapour-liquid passed column plate has improved composite plate significantly The mass transfer separative efficiency, compare with the F1 float valve, improved 50%. (3) the vapour-liquid two-phase does not all have back-mixing, and the mass transfer way of contact is simple, is conducive to Carry out column plate mass transfer separation simulation. Because gas phase is passed the ejection of column plate final level and passed upward, bubble is little simultaneously, and nothing is poly-also, the mist folder Band is few. (4) veneer percent opening height, compound percent opening adjustable extent is big; Quite under the gas speed, plate pressure drop the filler little and height equivalent to one theoretical plate (HETP) is pressed The energy-saving efficiency height falls quite. (5) operating flexibility is big, and optimum operation elasticity is 4, and maximum operating flexibility is 8, can satisfy various industrial production Need. (6) simple in structure, the intensity height, cost is low, and installation and decoration is convenient, is particularly suitable for tower and maximizes.

Claims

1. novel turbogrid type composite column plate, form by dual-flow tray (1), sieve plate (2) and structured packing (3), it is characterized in that on dual-flow tray, having 20～60% sieve aperture, the distance of 3～6mm is provided with the sieve plate of identical percent opening at an upper portion thereof, sieve aperture can be the suitable diamond hole of φ 3～φ 20 circular holes opened on 2～10mm plate or perforated area, the strip bulge that cracks in the side, wrong row of the circular hole of the circular hole on the sieve plate, diamond hole or strip bulge and dual-flow tray, diamond hole or bar hole or half wrong row; Below dual-flow tray by the fixedly high structured packing of one deck 0～250 of self brace summer; Utilize the upper support beam of sieve plate to be connected and fixed during installation between composite plate plate and the plate, fix by connector between plate and the bracing ring by bolt.

2. the described novel turbogrid type composite column plate of claims (1) is characterized in that no downflow weir of said dual-flow tray (1) and downspout.

3. the described novel turbogrid type composite column plate of claims (1) utilizes the upper support beam of sieve plate to be connected and fixed by bolt between plate and the plate when it is characterized in that the composite plate installation, fixes by connector between plate and the bracing ring.