CN1194878A - Air compounded packing column plate - Google Patents
Air compounded packing column plate Download PDFInfo
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- CN1194878A CN1194878A CN97103868A CN97103868A CN1194878A CN 1194878 A CN1194878 A CN 1194878A CN 97103868 A CN97103868 A CN 97103868A CN 97103868 A CN97103868 A CN 97103868A CN 1194878 A CN1194878 A CN 1194878A
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- column plate
- packing
- tray
- plate
- column
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
一种用于气液接触塔(1)的复合填料塔板,包括塔板(4),降液管(2),其特征在于在塔板(4)下方的气相空间安置一层规整填料层(3)。本发明具有高分离效率、高通量的特点,可广泛用于炼油、化肥、化工等工业生产中。
A composite packing tray for a gas-liquid contact tower (1), comprising a tray (4) and a downcomer (2), characterized in that a layer of structured packing is arranged in the gas phase space below the tray (4) (3). The invention has the characteristics of high separation efficiency and high flux, and can be widely used in industrial production such as oil refining, chemical fertilizer, and chemical industry.
Description
The present invention relates to a kind of column plate that is used for vapour-liquid contacting column, more particularly relate to a kind of improved below the downspout column plate compounded packing column plate of a compound packing layer.
Vapour-liquid contacting column is used for isolating specific component from many components material, and in general, this vapour-liquid contacting column adopts column plate, filler or the combination of the two, and random or structured packing and being used in combination of column plate help improving the separating effect of component in the material.In recent years, the complex technique of column plate and filler had new development again.
G.X.Chen, A.Afacan, C.Xu and K.T.Chuang are at The CanadianJournal of Chemical Engineering.Volume 08 June, proposed in 1990 a kind of on common sieve plate the complex metal wire-mesh filler, filler plays emulsifying liquid, makes foam homogenising on the plate, increases the effect of gas-liquid contact area, can improve plate and imitate, but little to improving the effect of plate flux.
Yao Kejian, meter is built bright grade at " (Chemical Engineering " Vol 20, No 6 (1992.12.25) has proposed a kind of method of falling compound structured packing under the column plate in pouring, its major advantage is to have increased membranaceous efficiently mass-transfer zone, and improved the mass-transfer efficiency of bubbling area on the plate, be the compound of a kind of heavy duty detergent, but owing to the not high elasticity that makes of liquid flux and the load-bearing capacity of turbogrid tray is restricted.
U.S. Pat 536666 discloses a kind of structure at the following compound dumped packing of square downcomer sieve plate (MultipleDowncome is called for short the MD sieve plate), but in the hot-die device of Uop Inc., confirm in pilot scale, this composite plate flow quantity is difficult to be evenly distributed, and structure haves much room for improvement.
In a word, the high flux and the high resiliency problem of all unresolved equipment operation of several composite plate technology of the prior art, purpose of the present invention just is to overcome the defective of above-mentioned prior art.
The object of the present invention is to provide a kind of new compounded packing column plate, make this column plate can realize the high flux and the high resiliency of tower operation.
Purpose of the present invention is achieved through the following technical solutions:
The invention provides a kind of compounded packing column plate that is used for vapour-liquid contacting column (1), comprise column plate (4), downspout (2) is characterized in that at the gas-phase space of column plate (4) below one structured filling material layer (3) being housed.
According to above-mentioned aerial compounded packing column plate, it is characterized in that the column plate that is adopted comprises common sieve plate, valve plate and square downcomer (MD) sieve plate, square downcomer water conservancy diversion (DJ) sieve plate; Filler can adopt any feasible structured packing, comprises stainless steel 4.5 type fillers and 250Y type filler.
According to above-mentioned aerial compounded packing column plate, it is characterized in that packing layer (3) is 20-200mm apart from the distance of column plate (4), the thickness of packing layer is 30-100mm.
The present invention has following good effect: 1. have in its packing layer of aerial compounded packing column plate of the present invention and be not close to column plate, but leave the column plate certain distance, when gas-liquid load was high, packing layer played the effect that suppresses entrainment.2. when aerial compounded packing column plate of the present invention adopts square downcomer sieve plate or square downcomer water conservancy diversion sieve plate, can guarantee passing through of high liquid measure.Accompanying drawing 4 has been represented the column efficiency of methanol-water and the relation of void tower kinetic energy factor, and accompanying drawing 5 has been represented the full column efficiency of alcohol-water and the relation of void tower kinetic energy factor.The two shows that all compound square downcomer guide column plate has higher efficient and wideer efficient district to the square downcomer water conservancy diversion sieve plate that has adopted the aerial compounded mix of the present invention than no filler, and full column efficiency on average exceeds 10%-15%.3. when the present invention is used for the enlarging transformation,, only install filler additional if the throughput that former column plate can bear liquid can not changed column plate.When load hanged down the column plate leakage, compound packing layer played effect of mass transmitting again, thereby has reduced the load lower limit, has increased the efficient district scope of column plate, has improved the elasticity of column plate.
In a word, adopt aerial compounded packing column plate of the present invention, when load is high or low, have and improve the function that mass transfer is raised the efficiency, can make separative efficiency improve 10%-15% than prior art, can obtain satisfied separative efficiency when being applied to high gas-liquid load or leakage operation, thereby it is wide to have an efficient district, the advantage that elasticity is big.The invention belongs to the novel gas-liquid mass transfer apparatus, can be widely used in the industrial production such as oil refining, chemical fertilizer and chemical industry, for volume increase consumption reduction in the industrial production, eliminating bottleneck is the enlarging transformation situation at center, and the present invention has broad application prospects.
Accompanying drawing 1 is for adopting the vapour-liquid contacting column of aerial compounded packing column plate
Accompanying drawing 2 is aerial compounded packing column plate structure side pseudosection
Accompanying drawing 3 is a symbol among the aerial compounded packing column plate vertical view figure: 1: tower body 2: downspout 3: filler 4 column plates
Accompanying drawing 4 is the column efficiency and the void tower kinetic energy factor relation of methanol-water
Accompanying drawing 5 is the full column efficiency of alcohol-water and the relation of void tower kinetic energy factor
The present invention is described further below in conjunction with accompanying drawing:
A kind of composite plate structure at the down aerial compound structured filling material layer (3) of the column plate (4) of being with downspout (2), it is characterized in that below the column plate (4) that compound structured filling material layer (3) is not close to column plate (4) but leaves the column plate certain distance, this distance is decided on square between process conditions and plate, generally between 20-200mm.Compound structured packing can be stainless steel 4.5 types or 250Y type or other feasible structured packings.The thickness of compound packing layer (3) is 30-100mm, and the packing layer of setting can be designed to the basket shelf structure of piecemeal, and a basket frame is welded into steel bar, and stud is housed, so as in the supporting arrangement of column plate fixing filler basket.
When operation operation, gas passes sieve aperture bubbling in the liquid layer onboard, and forms the froth bed of certain altitude, and when gas was carried the small amount of liquid foam through compound packing layer (3) secretly, filler had played the trapping solution foam.Simultaneously, in packing layer, also have mass transfer between gas-liquid.When gas-liquid load increased, gas left froth bed, and the liquid foam of carrying secretly also increases thereupon, the foam effect of catching that packing layer (3) is play is also remarkable thereupon, therefore, make the efficient district of efficiency curve wideer higher, when gas load reduces, when the sieve plate leakage is obvious, the liquid that leaks down evenly drenches and falls on compound filler, make filler play efficient mass transfer, so efficiency curve has a convex area under underload, show its lower limit extension, efficiently distinguish wide characteristics.
Claims (3)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97103868A CN1048644C (en) | 1997-04-03 | 1997-04-03 | Air compounded packing column plate |
| US09/472,336 US6345811B1 (en) | 1997-04-03 | 1999-12-27 | Combined packing-tray in a vapor-liquid contacting tower and a process for effecting operation with high capacity and high turndown ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97103868A CN1048644C (en) | 1997-04-03 | 1997-04-03 | Air compounded packing column plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1194878A true CN1194878A (en) | 1998-10-07 |
| CN1048644C CN1048644C (en) | 2000-01-26 |
Family
ID=5166942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97103868A Expired - Lifetime CN1048644C (en) | 1997-04-03 | 1997-04-03 | Air compounded packing column plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1048644C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1117595C (en) * | 2000-06-30 | 2003-08-13 | 上海惠生化工工程有限公司 | Oblique hole corrugated plate |
| WO2005009583A1 (en) * | 2003-07-26 | 2005-02-03 | Fusheng Xie | A helical fractionating column |
| CN100464820C (en) * | 2006-03-13 | 2009-03-04 | 董谊仁 | Gas-purifying combined absorbing tower and application thereof |
| CN102580337A (en) * | 2012-01-19 | 2012-07-18 | 天津大学 | Mixed butyraldehyde separation device and application of packed towers |
| CN105233516A (en) * | 2015-10-09 | 2016-01-13 | 江苏华益科技有限公司 | A large-flux packed tower based on high-flux structured packing support |
| CN105498284A (en) * | 2015-12-04 | 2016-04-20 | 中国天辰工程有限公司 | Extracting tower for liquid-liquid heterogeneous separation |
| CN106390503A (en) * | 2016-11-17 | 2017-02-15 | 晓健科技（大连）有限公司 | Plate type packed distillation tower |
| CN111250030A (en) * | 2020-03-19 | 2020-06-09 | 浙江工业大学 | A composite tray with high flux and high defoaming efficiency |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4620952A (en) * | 1985-10-15 | 1986-11-04 | Koch Engineering Company, Inc. | Gas liquid contact tray and method |
| US5244604A (en) * | 1992-04-02 | 1993-09-14 | Uop | Packing-enhanced baffled downcomer fractionation tray |
-
1997
- 1997-04-03 CN CN97103868A patent/CN1048644C/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1117595C (en) * | 2000-06-30 | 2003-08-13 | 上海惠生化工工程有限公司 | Oblique hole corrugated plate |
| WO2005009583A1 (en) * | 2003-07-26 | 2005-02-03 | Fusheng Xie | A helical fractionating column |
| CN100464820C (en) * | 2006-03-13 | 2009-03-04 | 董谊仁 | Gas-purifying combined absorbing tower and application thereof |
| CN102580337A (en) * | 2012-01-19 | 2012-07-18 | 天津大学 | Mixed butyraldehyde separation device and application of packed towers |
| CN105233516A (en) * | 2015-10-09 | 2016-01-13 | 江苏华益科技有限公司 | A large-flux packed tower based on high-flux structured packing support |
| CN105498284A (en) * | 2015-12-04 | 2016-04-20 | 中国天辰工程有限公司 | Extracting tower for liquid-liquid heterogeneous separation |
| CN106390503A (en) * | 2016-11-17 | 2017-02-15 | 晓健科技（大连）有限公司 | Plate type packed distillation tower |
| CN106390503B (en) * | 2016-11-17 | 2019-02-01 | 泰兴金江化学工业有限公司 | A kind of gasket packing rectifying column |
| CN111250030A (en) * | 2020-03-19 | 2020-06-09 | 浙江工业大学 | A composite tray with high flux and high defoaming efficiency |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1048644C (en) | 2000-01-26 |
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Addressee: Yan Peirong Document name: Notification to Pay the Fees |
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| CX01 | Expiry of patent term | ||
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| DD01 | Delivery of document by public notice |