CN1007125B - Vapor/liquid contact tower and its treatment method - Google Patents
Vapor/liquid contact tower and its treatment methodInfo
- Publication number
- CN1007125B CN1007125B CN 85106438 CN85106438A CN1007125B CN 1007125 B CN1007125 B CN 1007125B CN 85106438 CN85106438 CN 85106438 CN 85106438 A CN85106438 A CN 85106438A CN 1007125 B CN1007125 B CN 1007125B
- Authority
- CN
- China
- Prior art keywords
- liquid
- tower
- contact tower
- dispensing apparatus
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title abstract description 8
- 238000012856 packing Methods 0.000 claims abstract description 21
- 239000012530 fluid Substances 0.000 claims description 15
- 239000007789 gas Substances 0.000 description 27
- 239000000945 filler Substances 0.000 description 12
- 238000003672 processing method Methods 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 230000002745 absorbent Effects 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Gas Separation By Absorption (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
一种使气流逆向地与液流接触的塔，该塔(1)有大体水平的填料层(2)，所述填料层(2)下方有气体进口和液体出口，所述填料层(2)有气体出口和液体进口，该塔有一大体水平的液体分配装置(3，4)，该装置有许多气体通道(7)和开口，穿过该开口装有大体垂直并带有尾部狭缝的排泄管(8)，该管中有液体通道(9)，排泄管(8)的底端伸到液体分配装置(3，4)的下面并邻近填料层的上表面。
该塔最好用于使气体与液体接触的处理过程中。
A column for contacting a gas flow countercurrently with a liquid flow, the column (1) having a substantially horizontal packing layer (2) with a gas inlet and a liquid outlet below the packing layer (2), the packing layer (2) With a gas outlet and a liquid inlet, the column has a generally horizontal liquid distribution means (3, 4) with a number of gas channels (7) and openings through which are fitted a generally vertical drain with a tail slit A tube (8) with a liquid passage (9) in the tube, the bottom end of the drain tube (8) extends below the liquid distribution means (3, 4) and adjacent to the upper surface of the packing bed.
The column is preferably used in processes in which gas is contacted with a liquid.
Description
Involved in the present invention is a kind of tower that air-flow contact with liquid stream inversely the invention still further relates to a kind of processing method of using this tower, particularly be the processing method that moist air stream is dewatered.
Term " gas " used in this paper specification and claims is interpreted as also comprising steam.
Remove the moisture content in the wet gas (as natural-gas), method commonly used is that air-flow is contacted with stripping liquid, and this stripping liquid can be diethylene glycol (DEG) (diethylene glycoe) or triethylene glycol (tsiethylene glycoe).Glycol absorbent liquid flows the purity that the degree of absorption of institute's water content in the air-flow is depended on absorbent, and the exposure level of air-flow and absorbent.Gas dewatering is handled and is generally carried out in tower, and the interior arrangement of this tower promotes that air-flow contacts with the stripping liquid of reverse flow.Interior arrangement can be made of the contact pallet, has air feed flow to go up mobile hole on this contact pallet, and liquid is delivered to the tapping pipe of contiguous following one deck, and interior arrangement preferably is made of one or more layers filler.
Difform filling kind is various, and can buy everywhere.These fillers can be to draw uncommon lattice ring (Raschig rings) or Pall ring (Pau rings), and they are distributed in the contact tower brokenly; It also can be the structured packing that tightly stacks by many vertically extending corrugated platings.The tower of the above-mentioned type has one or more layers filler, and when tower was in running order, air-flow passed this filler to rising, liquid then along filling surface to decline.In the gas/liquid contact of this type is handled, should note liquid is evenly distributed on the filler as far as possible, so that gas obtains best the contact with liquid in the course of the work.Therefore, liquid is generally delivered to the surface of filler through many dripping points, and this dripping point is evenly distributed on the cross section of squarer on the filler substantially.
Both used above-mentioned measure, known gas/liquid contact tower is also often worked not good, and this is by ascending air, particularly when higher gas carries, cause liquid entrainment caused.
Another problem of being followed in the course of work of known contact tower is that the fluid course in the liquid dispensing apparatus stops up, if carry and must adopt in liquid dispensing apparatus when turning round under the situation of narrow fluid course at low liquid if contain solid impurity and/or contact tower in the liquid, the fluid course blockage problem in the liquid dispensing apparatus is just noticeable especially so.
In above mentioned liquid entrainment and liquid dispensing apparatus the fluid course blocking problem, contact problem insufficient, that efficient is not good between the liquid that also exists decline and the gas of rising, this problem results from the liquid distribution inequality in the contact tower.To cause the liquid distribution inequality may be because contact tower, particularly high contact tower, and it is general all that some tilts a little that this is true and cause and/or owing to causing along the run-off the straight of liquid dispensing apparatus flowing liquid.
The liquid dispensing apparatus of general type generally comprises planar disk or planar slot, the hole of air feed stream rising is arranged and have feed flow to flow down the relatively little pipe or the hole that fall on these dishes or the groove.In addition, people know that liquid dispensing apparatus is made of many parallel slot drillers, and these parallel slot drillers are equipped with the central supply system.When these distributor strictnesses are installed in horizontal level and are used for handling a large amount of relatively liquid when carrying, this distributor generally can move satisfactorily, but when this distributor is not to be installed in substantially horizontal position or when the contact tower that this distributor is housed when some tilts, when this distributor is used for the gas treating process that low liquid carries or when the opening of liquid dispensing apparatus fluid course stops up gradually, this distributor has just no longer normally moved.
Purpose of the present invention aims to provide a kind of follow-on tower that air-flow is contacted with liquid stream inversely, and this tower can make gas and liquid obtain higher levels of effect than the known gas/liquid contact device of use when high gas carries.
Flow the reverse tower that contacts according to air-flow proposed by the invention and liquid, it comprises a packing layer of level substantially, one gas feed and a liquid outlet are arranged below described packing layer, one gas vent and a liquid-inlet are arranged above described packing layer, also include the liquid dispensing apparatus of level substantially, this device has many gas passages and opening, pass the excretory duct that these openings are equipped with perpendicular and have the afterbody slit, form fluid course, its bottom reaches the following of liquid dispensing apparatus and adjacent with the upper surface of packing layer.
The excretory duct bottom places under the liquid dispensing apparatus lower surface, and liquid infiltrated along described lower surface when this set can prevent contact tower work.
This liquid infiltration can cause the distribution of liquid inequality, when high gas carries, is easy to cause liquid entrainment especially.According to the present invention,, prevented liquid entrainment even fully because the upper surface of the contiguous packing layer in the position of excretory duct bottom in the contact tower so just is reduced to minimum degree with liquid entrainment.
For the danger that fluid course is stopped up reduces to minimum degree, the shape of these passages is preferably slit opening.The selection of this slit width should be with regard to a certain given liquid stream and a certain given liquids and gases density, and the peak value of its overflow should be even as big as guaranteeing that liquid is evenly distributed on all excretory ducts basically.Slit is preferably rectangular, so that further reduce the danger of solid impurity precipitation plugging fluid circulation road in the liquid stream.
Excretory duct preferably is contained in the opening of liquid dispensing apparatus vertically adjustablely, so that can be by the bottom height of each excretory duct tube wall upper shed is adjusted the adjustment that realizes liquid distribution on the excretory duct.When particularly if tower is used for low liquid and carries, excretory duct single adjustable be an importance that prevents the liquid distribution inequality.
Liquid dispensing apparatus is that case shape structure is proper, and as being one to spread all over the pallet of this contact tower entire cross section substantially, the described pallet in this contact tower has vertical limit wall, forms a liquid storage vessel, and the passage of riser as ascending air arranged.Perhaps liquid dispensing apparatus can be made of the parallel groove of many cardinal principles, and these grooves have spacing, and gas can pass from the spacing of described groove.
The invention still further relates to a kind of processing method that air-flow is contacted with the liquid stream of reverse flow, this processing method realizes by using contact tower manufactured according to the present invention.The processing method that suggestion is adopted is specially adapted to make the moist air stream dehydration, and this method is that air-flow is contacted with the stripping liquid of reverse flow, and this stripping liquid can be a glycol, for example diethylene glycol (DEG) or triethylene glycol.
Only further specify the present invention now with reference to the accompanying drawings by way of example, wherein:
Fig. 1 is the profile of one section of the centre of tower of the present invention;
Fig. 2 is the profile of Fig. 1 II-II line;
Fig. 3 is the another kind of form of liquid dispensing apparatus shown in Fig. 1;
Fig. 4 is the profile of IV among Fig. 3-IV line; With
Fig. 5 is the detail drawing of adjustable excretory duct.
With reference to figure 1 and Fig. 2, what show among the figure is one section of the centre that makes the tower that the liquid stream of air-flow and reverse flow contacts.Liquid input device (marking among the figure) is arranged on this contact tower (generally representing with reference number 1) top, and gas input device (marking among the figure) is arranged in its bottom.Liquids and gases can be discharged this tower from the liquid outlet and the gas vent (two outlets all do not mark) on contact tower bottom and top respectively.For impelling contacting of gas and liquid, this contact tower is equipped with packing layer 2, this packing layer can tightly be stacked by many vertically extending corrugated platings and constitute, and its mode is to make the ripple of adjacent panels constitute certain angle each other to form mazy passage for the gas that rises and the liquid of decline.The liquid dispensing apparatus of packing layer top is one case shape structure, this structure by one substantially the pallet 3 of level form with vertical limit wall 4.Pallet 3 is supported by support ring 5, and support ring is connected with the inner wall surface of tower, and its mode can be welding, and described tower wall is by reference number 6 expressions.Many gas passages that are evenly distributed (this pallet one joint is stretched out on the top of riser 7) are arranged on the pallet 3.Distribute for liquid, pallet 3 also will have many excretory ducts 8 at its opening part, and these excretory ducts extend to the above and below of pallet 3.The upper surface of the bottom of described excretory duct 8 and packing layer 2 is adjacent.The top of excretory duct 8 extends to form to the top of pallet 3 accumulates the district for the solid impurity precipitation in the liquid stream that enters pallet 3.Excretory duct 8 respectively has one or more rectangular slot 9, to guarantee enough overflow peak values.The top of riser 7 should place on the excretory duct naturally, overflows to prevent liquid.The internal diameter of excretory duct should be enough greatly to prevent that stopping up from appearring in contact tower when working.In any case excretory duct 8 should be evenly distributed on the pallet 3 substantially, the required number of this excretory duct depends on the desirability of this distribution, and the desirability that distributes depends on the type of used filler.
With reference now to Fig. 3 and Fig. 4,, what show among the figure is the another kind of form of liquid dispensing apparatus among Fig. 1 and Fig. 2.In this further embodiment of the present invention, pallet 3 is by many spaced apart, substantially the groove 20 of level replace these groove 20 arrangements parallel to each other.Each groove 20 all links to each other with supply groove 21, and this is supplied with groove and extends to the direction vertical with groove 20 cardinal principles.The direction of the liquid-inlet of contact tower (not marking among the figure) should be able to make the liquid that enters flow directly into the supply groove, and enters groove 20 from supplying with groove.The excretory duct 22 that each groove 20 all has a row or multi-row spacing to equate substantially has slit opening (not marking among the figure) to flow into for liquid on the excretory duct 22.In the time of in working order, gas is by way of the spacing of described groove and through this groove 20.
Fig. 5 is the detail drawing of adjustable excretory duct.
If the levelness imbalance that the pallet of excretory duct or groove be housed obviously and can not make it balance by the overflow peak value, so adjustable excretory duct is more apparent its superiority just.
Adjustable excretory duct (being represented by reference number 30) has external screw thread 31, this excretory duct to be contained in the opening 32 of pallet 33 of liquid dispensing apparatus, and this pallet 33 has the internal thread 34 and the screw thread of excretory duct 30 to match.Adjustable excretory duct also has a slit 35 to make liquid enter this pipe.The bottom of this excretory duct 30 is the inclined-plane, so that liquid is delivered on the filler exactly.Naturally we can shown in this screw thread setting, and use other any morning of the known locking device that is suitable for.
Used the contact tower that is equipped with as the interior arrangement among Fig. 1 in the processing procedure that the stripping liquid of reverse flow dewaters moist air stream, the implementation step of this processing procedure is as follows.The wet gas that enters contact tower 1 bottom through packing layer 2 to rising, in this layer with pass the stripping liquid that packing layer flows downward and contact closely.Here can or only seldom not have owing to what air-flow lifted away from that filler causes to enter the mist of the liquid of packing layer, because the bottom of excretory duct is placed under the pallet 3 and contiguous filler through excretory duct 8.In the processed process, the loss that reduces stripping liquid just seems most important with the decline liquid stream of eliminating dewater unit to the danger that plenum system corrodes especially.
Dewatered gas is sent by riser 7 and can further be handled or can directly extract out from contact tower on the top of contact tower.Discharge from the bottom of contact tower with the stripping liquid of crossing, and flow into pallet 3 once more after can outside tower, reclaiming.
Liquid dispensing apparatus shown in should attention figure can match with fluid collection device, this fluid collection device compile liquid also (partly) extract liquid out in the contact tower and on remaining liquid distribution another part in contact tower.Liquid dispensing apparatus and fluid collection device are supporting, can be used in effectively in the fractionating column, drainpipe and the filler that correspondingly have fractionation to use in this fractionating column.
Claims (7)
1, a kind of contact tower that air-flow is contacted with liquid stream inversely, the packing layer that comprises a cardinal principle level, gas feed below described packing layer and liquid outlet, with gas vent and the liquid-inlet above described packing layer, and the liquid dispensing apparatus of a cardinal principle level, this device has some gas passages and opening, pass this opening excretory duct vertical and that have wall substantially is housed, this excretory duct has fluid passage, it is characterized in that the bottom of described excretory duct reaches the upper surface of the following of liquid dispensing apparatus and contiguous packing layer, and described excretory duct is the opening part that adjustable ground is vertically mounted on described liquid dispensing apparatus.
2, according to a kind of contact tower that proposes in the claim 1, the fluid passage that it is characterized in that described excretory duct is a slit opening.
3, according to a kind of contact tower that proposes in the claim 2, it is characterized in that described slit opening is rectangular.
4, a kind of contact tower that proposes according to any one claim in the claim 1 to 3 is characterized in that the bottom of described excretory duct is the inclined-plane.
5, a kind of contact tower that proposes according to any one claim in the claim 1 to 3, it is characterized in that described liquid dispensing apparatus is made of the pallet that spreads all over entire cross section in this tower substantially, this pallet has vertical limit wall to form liquid storage vessel, and riser is arranged as gas passage.
6, a kind of contact tower that proposes according to any one claim in the claim 1 to 3 is characterized in that described liquid dispensing apparatus groove parallel by some cardinal principles, that spacing is arranged constitutes, described groove be spaced apart gas passage.
7, a kind of contact tower that proposes according to any one claim in the claim 1 to 3 is characterized in that the fluid collection device that described liquid dispensing apparatus matches with the leakage fluid dram of this tower in addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85106438 CN1007125B (en) | 1984-07-25 | 1985-08-27 | Vapor/liquid contact tower and its treatment method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB848418918A GB8418918D0 (en) | 1984-07-25 | 1984-07-25 | Gas/liquid contact |
| CN 85106438 CN1007125B (en) | 1984-07-25 | 1985-08-27 | Vapor/liquid contact tower and its treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85106438A CN85106438A (en) | 1987-03-11 |
| CN1007125B true CN1007125B (en) | 1990-03-14 |
Family
ID=25741990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85106438 Expired CN1007125B (en) | 1984-07-25 | 1985-08-27 | Vapor/liquid contact tower and its treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1007125B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712479A (en) * | 2014-01-04 | 2014-04-09 | 长沙市博能科技发展有限公司 | Stainless steel packing heater |
| CN103768820B (en) * | 2014-02-17 | 2015-08-19 | 无锡市杨市化工有限公司 | graphite distribution collector |
| CN117180967B (en) * | 2023-10-23 | 2025-06-13 | 上海市政工程设计研究总院（集团）有限公司 | Exhaust gas treatment system |
-
1985
- 1985-08-27 CN CN 85106438 patent/CN1007125B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN85106438A (en) | 1987-03-11 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |