CN103143238B - Pipe groove type liquid distributor applied to flue gas desulfurization tower - Google Patents
Pipe groove type liquid distributor applied to flue gas desulfurization tower Download PDFInfo
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- CN103143238B CN103143238B CN201310085364.XA CN201310085364A CN103143238B CN 103143238 B CN103143238 B CN 103143238B CN 201310085364 A CN201310085364 A CN 201310085364A CN 103143238 B CN103143238 B CN 103143238B
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Abstract
The invention relates to a pipe groove type liquid distributor applied to a flue gas desulfurization tower. The pipe groove type liquid distributor is composed of a liquid inlet tube, a liquid distributing pipe, a first-stage groove and a second-stage groove which are engaged with each other, wherein the liquid distributing pipe is divided into two stages which are engaged up and down through a middle partition board with variable interval equant liquid distributing holes; a second-stage bottom surface is provided with equal interval equant liquid distributing holes and liquid sealing pipes; the outlet end of each liquid sealing pipe is provided with a buffer; the bottom of the first-stage groove is provided with the second-stage groove vertical to the first-stage groove in a long axis direction at the middle position between corresponding adjacent liquid sealing pipes; uniform section rectangular liquid distribution liquid sealing pipes respectively inserted in each second-stage groove are arranged at the bottom of the first-stage groove; upper and lower liquid discharge holes at equal intervals are formed in both side groove boards of the second-stage groove; an anti-blocking baffle board is arranged inside each upper liquid discharge hole, and a flow guide groove board correspondingly engaged with a wire distributing board is arranged outside each upper liquid discharge hole; and a liquid distributing board is arranged at the lower part of each lower liquid discharge hole of the second-stage groove. The pipe groove type liquid distributor has the characteristics of liquid distribution uniformity, impact foam generation prevention, entrainment prevention and blockage prevention, and can be widely applied to large, middle and small containers for absorption and distillation such as flue gas desulfurization.
Description
Technical field
The invention belongs to the tower internals of chemical filler tower, particularly relate to a kind of Pipe groove type liquid distributor being applied to fume desulfurizing tower.
Background technology
In order to reduce the enlarge-effect caused by the bad distribution of liquid, giving full play to the efficiency of filler, in packed tower, liquid distribution trough must be installed, be distributed in packing layer top with making uniform liquid.
The performance of liquid distribution trough not only affects the uniformity of its cloth liquid and the mass-transfer efficiency of filler, and can have an impact to the operating flexibility of packed tower.Therefore, liquid distribution trough is one of internals very crucial in packed tower.
The kind of liquid distribution trough is many, and tubular liquid distributor and tank type liquid distributor are wherein two kinds of universal distributors.Tubular liquid distributor is made up of the tube having holes of calandria or annular tube type, due to liquid flowing in speed change in isometrical tubular type liquid distribution trough, namely liquid reduces gradually along the flow velocity of its flow process, static pressure is respective change also, and therefore tubular liquid distributor exists more difficult, the susceptible to plugging defect of aperture of each aperture current-sharing output.Tank type liquid distributor is made up of first-stage tank and second-level groove, and each second-level groove is connected to the bottom land of first-stage tank, and the bottom land of first-stage tank arranges the tap hole of corresponding each second-level groove respectively, and the bottom land in second-level groove arranges deflector or mozzle.
New packing along with function admirable is come out one after another and the deepening continuously of tower internals fundamental research, and the version of Liquid Distribution in Packed Columns also has adaptive development.
The application for a patent for invention ' equalized flow liquid distributor ' of number of patent application 201110145375.3 discloses a kind of equalized flow liquid distributor be applied on film-lowering type heat transmission equipment, comprise liquid distributor, the feed liquor mouth of pipe of described liquid distributor is provided with overflow launder, and described liquid distributor is contained on cloth liquid bath.Described cloth liquid bath is equipped with baffle liner by connecting plate, this baffle liner is equipped with deflector.This technical scheme can make liquid through cloth liquid bath, being uniformly distributed of liquid distributor and flow to film-lowering type heat transmission equipment tube sheet on and make each heat exchanger tube institute cloth uniform liquid, avoid liquid distribution that other form liquid distributor exists uneven and easily block and be sprayed onto the problems such as shell wall.
Accompanying drawing in conjunction with technique scheme can be found out, the liquid distributor of above-mentioned calandria is connected to the bottom of cloth liquid bath, the pipe end being arranged in each liquid distributor of cloth liquid bath arranges overflow launder respectively, baffle liner above cloth liquid bath and deflector thereof are connected with feed tube, if baffle liner and deflector thereof are considered as first-stage tank, cloth liquid bath is considered as second-level groove, then technique scheme is in fact a kind of trough-pipe type liquid distribution trough relative to feed tube.
Summary of the invention
The object of the invention is openly that a kind of cloth liquid is evenly and have that protecting against shock foam produces, anti-mist is carried under one's arms, the anticlogging Pipe groove type liquid distributor being applied to fume desulfurizing tower.
The present invention takes following technical scheme for achieving the above object: this Pipe groove type liquid distributor comprises the first-stage tank of feed tube and tank type liquid distributor, second-level groove, feature is, this liquid distribution trough is by the feed tube be connected successively, liquid distribution pipe, first-stage tank, second-level groove is formed, described liquid distribution pipe is divided into the first order liquid distribution pipe and second level liquid distribution pipe that are connected up and down by central dividing plate, feed tube is connected to the axial equally divided position of first order liquid distribution pipe, described central dividing plate becomes the thin isometrical liquid distributing hole of changing distance at the bilateral symmetry providing holes interval of corresponding feed tube axis gradually by close, the bottom surface of described second level liquid distribution pipe is axially arranged with isometrical liquid distributing hole at equal intervals along it, the aperture of the isometrical liquid distributing hole of changing distance is greater than the aperture of isometrical liquid distributing hole at equal intervals, liquid distribution pipe bottom surface, the second level is provided with the liquid sealing pipe of corresponding each isometrical liquid distributing hole at equal intervals respectively, the port of export of each liquid sealing pipe is all positioned at below first-stage tank minimum level, buffer is equipped with below the outlet of described each liquid sealing pipe, described buffer keeps off along forming by circular or rectangular chassis with the local on the gear edge or symmetry that are positioned at chassis upper edge hole, center chassis is corresponding with the axle center of liquid sealing pipe, and the length crossing the most short lines of center chassis is greater than the diameter of liquid sealing pipe, the middle position of bottom land between the adjacent liquid sealing pipe of correspondence of described first-stage tank is provided with the second-level groove of long axis direction perpendicular to first-stage tank, the bottom land of first-stage tank is provided with the separatory liquid sealing pipe of the uiform section rectangle going deep into each second-level groove respectively, the upper port of described separatory liquid sealing pipe closes and higher than first-stage tank bottom land, the long side plate being arranged in its symmetry of separatory liquid sealing pipe upper end of first-stage tank is provided with the outage of level, the upper and lower of described second-level groove both sides frid be respectively equipped with equally spaced on, lower fluid hole, the anti-blocking baffle plate be made up of trough plate is respectively equipped with inside upper fluid hole, the flat board of trough plate is corresponding with upper fluid hole, the riser of dull and stereotyped both sides is fixed on the both sides of fluid hole, the outside of each upper fluid hole is respectively equipped with downward-sloping water conservancy diversion frid, each water conservancy diversion frid is corresponding with the line distribution grid being supported on second-level groove both sides frid to be respectively connected, the liquid distribution plate of level is provided with between the second-level groove both sides frid of lower fluid hole bottom, described liquid distribution plate is crossing with the separatory liquid sealing pipe of first-stage tank, the liquid distribution plate of separatory liquid sealing pipe both sides is evenly equipped with open-work.
The present invention can also take following technical measures:
The upper and lower fluid hole upper-lower position of described second-level groove both sides frid is corresponding, and the diameter range of upper fluid hole is ф=8-12mm.
Described second-level groove bottom land cross section is isosceles right triangle.
Beneficial effect of the present invention and advantage are: this Pipe groove type liquid distributor is gravity-type liquid distribution trough, rely on liquid level to be forced through corresponding aperture and reach liquid distribution all requirements such as even stable operation.This liquid distribution trough by feed tube and up and down two-stage type liquid distribution pipe, first-stage tank and second-level groove three part form, two-stage type liquid distribution pipe efficiently solves each distribution hole current-sharing that the flowing of existing liquid distribution pipe speed change causes and exports more difficult disadvantage.Liquid distribution pipe is placed on first-stage tank, flows into first-stage tank with making uniform liquid by each liquid sealing pipe, can avoid the stable state affecting liquid layer because of the severe impact of liquid.The liquid entering into first-stage tank is prorated to each second-level groove below, finally by the packing layer that be distributed to below of each second-level groove by uniform liquid by separatory liquid sealing pipe again.By three grades of cloth liquid, improve the liquid distribution uniformity, thus ensure that the separative efficiency of filler.Each liquid sealing pipe of this liquid distribution trough is equipped with buffer, efficiently reduces flow rate of liquid and changes liquid flow direction, therefore the impact foaming that the liquid avoiding liquid distribution pipe produces the upper surface of first-stage tank liquid layer.The liquid of first-stage tank is transported to below each second-level groove liquid distribution plate by each separatory liquid sealing pipe of this liquid distribution trough respectively, by liquid distribution plate, uniform liquid is assigned to each cross section of second-level groove, not only be conducive to the raising of the liquid distribution uniformity, the liquid that it also avoid first-stage tank outflow produces second-level groove liquid layer upper surface and impacts foaming.The structure of each liquid sealing pipe of this liquid distribution trough and buffer, separatory liquid sealing pipe and liquid distribution plate thoroughly can prevent the generation impacting foam, and then the fluid escapes loss preventing entrainment to cause.In the normal situation of operation, liquid to be sprayed onto on line distribution grid by the liquid distribution hole of its underpart and to form line distribution by each second-level groove, uniform liquid is distributed in packing layer below, if there is blocking in the liquid distribution hole of second-level groove bottom or traffic load exceedes the operation upper limit, liquid level then in second-level groove will bring up to the upper fluid hole of second-level groove, the easily stifled booty floating over liquid layer surface is shielded in outside anti-blocking baffle plate, clean liquid will by upper fluid hole, water conservancy diversion frid arrives line distribution grid, finally, in the packing layer of liquid below line distribution grid is evenly distributed to.Visible, the clogging that said structure can thoroughly prevent second-level groove from likely occurring, and then strong ensure that being uniformly distributed of liquid.The present invention have cloth liquid evenly, protecting against shock foam produces, anti-mist is carried under one's arms and anticlogging performance, improves the efficiency of tower and production capacity and extends life cycle, can be widely used in flue gas desulfurization etc. absorb and distillation large, medium and small tower in.The present invention have rational in infrastructure, manufacture simple, install easily, use reliable, overhaul outstanding advantages easily.
Accompanying drawing explanation
Accompanying drawing 1 is example structure partial cutaway schematic.
Accompanying drawing 2 is one of buffer structure schematic diagrames.
Accompanying drawing 3 is two schematic diagrames of buffer structure.
Accompanying drawing 4 is Fig. 1 Localized second groove amplification profile schematic diagrames.
Accompanying drawing 5 is that Figure 1A is to semi-section schematic diagram.
Mark in figure: 1 feed tube, 2 liquid distribution pipes, 2-1 central dividing plate, 2-2 first order liquid distribution pipe, 2-3 second level liquid distribution pipe, 2-4 is isometrical liquid distributing hole at equal intervals, the isometrical liquid distributing hole of 2-5 changing distance, 3 liquid sealing pipes, 4 buffers, 4-1 keeps off edge, and 4-2 local keeps off edge, 5 first-stage tank, 6 separatory liquid sealing pipes, 6-1 outage, 7 water conservancy diversion frids, 8 second-level groove, the upper fluid hole of 8-1, fluid hole under 8-2,8-3 bottom land, 9 line distribution grids, 10 anti-blocking baffle plates, 11 liquid distribution plates, 12 gripper shoes.
Detailed description of the invention
The present invention is further illustrated below in conjunction with embodiment and accompanying drawing thereof.
Embodiment as shown in Figure 1,2,3, 4, this liquid distribution trough is made up of the feed tube 1 be connected successively, liquid distribution pipe 2, first-stage tank 5, second-level groove 8.
Liquid distribution pipe 2 is by being that axial central dividing plate 2-1 is divided into the first order liquid distribution pipe 2-2 and second level liquid distribution pipe 2-3 that are connected up and down relative to liquid distribution pipe, and feed tube 1 is connected to the axial equally divided position of first order liquid distribution pipe 2-2.
Central dividing plate 2-1 becomes the thin isometrical liquid distributing hole 2-5 of changing distance at the bilateral symmetry providing holes interval of corresponding feed tube axis gradually by close, the bottom surface of second level liquid distribution pipe 2-3 is axially arranged with isometrical liquid distributing hole 2-4 at equal intervals along it, and the aperture of changing distance isometrical liquid distributing hole 2-5 is greater than the aperture of isometrical liquid distributing hole 2-4 at equal intervals.The second level its minimum level of liquid distribution pipe 2-3 of embodiment should be greater than 40mm, and the height of second level liquid distribution pipe 2-3 should be greater than the highest liquid level during maximum liquid load.
Liquid distribution pipe 2-3 bottom surface, the second level is provided with the liquid sealing pipe 3 of corresponding each isometrical liquid distributing hole 2-4 at equal intervals respectively, and the port of export of each liquid sealing pipe is all positioned at below first-stage tank 5 minimum level.
Be equipped with buffer 4 below the outlet of each liquid sealing pipe 3, as shown in Figure 2, it is made up of along 4-1 with the gear being positioned at chassis upper edge hole the chassis of circle one of structure of buffer 4, and center chassis is corresponding with the axle center of liquid sealing pipe 3.
The structure of buffer 4 two as shown in Figure 3, it is kept off by rectangular chassis and the local that is positioned at chassis upper edge hole symmetry and forming along 4-2, and center chassis is corresponding with the axle center of liquid sealing pipe 3, and buffer 4 embodiment illustrated in fig. 1 adopts structure shown in Fig. 3.
Its length crossing the most short lines of center chassis of each buffer 4 shown in Fig. 2,3 should be greater than the diameter of liquid sealing pipe 3 shown in Fig. 1.
As Fig. 1,4,5 illustrated embodiments, the middle position of bottom land between the adjacent liquid sealing pipe 3 of correspondence of first-stage tank 5 is provided with the second-level groove 8 of long axis direction perpendicular to first-stage tank, and the bottom land of first-stage tank 5 is provided with the separatory liquid sealing pipe 6 of the uiform section rectangle going deep into each second-level groove 8 respectively.Described separatory liquid sealing pipe 6 upper port close and higher than first-stage tank bottom land 60-80mm, the long side plate being arranged in its symmetry of separatory liquid sealing pipe upper end of first-stage tank is provided with horizontal outage 6-1, and the distance of the outage 6-1 center of circle and separatory liquid sealing pipe upper port is 30-40mm.
As Fig. 1,4,5 illustrated embodiments, the narrow groove of second-level groove 8 to be bottom land 8-3 cross sections be isosceles right triangle, groove width 40-80mm, groove height 200-300mm, the upper and lower of both sides frid is respectively equipped with equally spaced upper fluid hole 8-1 and lower fluid hole 8-2, upper and lower fluid hole upper-lower position is corresponding, and the diameter range of upper fluid hole 8-1 is ф=8-12mm, and lower fluid hole 8-2 aperture is according to the concrete technical conditions of tower and require to be obtained by aperture lifting rate formula.
Be respectively equipped with the anti-blocking baffle plate 10 be made up of trough plate inside each upper fluid hole 8-1, the flat board of trough plate is corresponding with upper fluid hole, and the riser of dull and stereotyped both sides is fixed on the both sides of fluid hole.The outside of each upper fluid hole 8-1 is respectively equipped with the water conservancy diversion frid 7 of inclination, and each water conservancy diversion frid is corresponding with the line distribution grid 9 of corresponding second-level groove 8 both sides to be connected, and line distribution grid 9 is supported in second-level groove both sides frid by gripper shoe 12.
Be provided with the liquid distribution plate 11 of level between the both sides frid of the lower fluid hole 8-2 bottom of second-level groove 8, liquid distribution plate is crossing with the separatory liquid sealing pipe 6 of first-stage tank 5, and the liquid distribution plate of separatory liquid sealing pipe 6 both sides is evenly equipped with open-work (not shown).
Claims (3)
1. be applied to the Pipe groove type liquid distributor of fume desulfurizing tower, comprise the first-stage tank of feed tube and tank type liquid distributor, second-level groove, it is characterized in that: this liquid distribution trough is by the feed tube be connected successively, liquid distribution pipe, first-stage tank, second-level groove is formed, described liquid distribution pipe is divided into the first order liquid distribution pipe and second level liquid distribution pipe that are connected up and down by central dividing plate, feed tube is connected to the axial equally divided position of first order liquid distribution pipe, described central dividing plate becomes the thin isometrical liquid distributing hole of changing distance at the bilateral symmetry providing holes interval of corresponding feed tube axis gradually by close, the bottom surface of described second level liquid distribution pipe is axially arranged with isometrical liquid distributing hole at equal intervals along it, the aperture of the isometrical liquid distributing hole of changing distance is greater than the aperture of isometrical liquid distributing hole at equal intervals, liquid distribution pipe bottom surface, the second level is provided with the liquid sealing pipe of corresponding each isometrical liquid distributing hole at equal intervals respectively, the port of export of each liquid sealing pipe is all positioned at below first-stage tank minimum level, buffer is equipped with below the outlet of described each liquid sealing pipe, described buffer keeps off along forming by circular or rectangular chassis with the local on the gear edge or symmetry that are positioned at chassis upper edge hole, center chassis is corresponding with the axle center of liquid sealing pipe, and the length crossing the most short lines of center chassis is greater than the diameter of liquid sealing pipe, the middle position of bottom land between the adjacent liquid sealing pipe of correspondence of described first-stage tank is provided with the second-level groove of long axis direction perpendicular to first-stage tank, the bottom land of first-stage tank is provided with the separatory liquid sealing pipe of the uiform section rectangle going deep into each second-level groove respectively, the upper port of described separatory liquid sealing pipe closes and higher than first-stage tank bottom land, the long side plate being arranged in its symmetry of separatory liquid sealing pipe upper end of first-stage tank is provided with the outage of level, the upper and lower of described second-level groove both sides frid be respectively equipped with equally spaced on, lower fluid hole, the anti-blocking baffle plate be made up of trough plate is respectively equipped with inside upper fluid hole, the flat board of trough plate is corresponding with upper fluid hole, the riser of dull and stereotyped both sides is fixed on the both sides of fluid hole, the outside of each upper fluid hole is respectively equipped with downward-sloping water conservancy diversion frid, each water conservancy diversion frid is corresponding with the line distribution grid being supported on second-level groove both sides frid to be respectively connected, the liquid distribution plate of level is provided with between the second-level groove both sides frid of lower fluid hole bottom, described liquid distribution plate is crossing with the separatory liquid sealing pipe of first-stage tank, the liquid distribution plate of separatory liquid sealing pipe both sides is evenly equipped with open-work.
2. Pipe groove type liquid distributor according to claim 1, is characterized in that: the upper and lower fluid hole upper-lower position of described second-level groove both sides frid is corresponding, and the diameter range of upper fluid hole is ф=8-12mm.
3. Pipe groove type liquid distributor according to claim 1, is characterized in that: described second-level groove bottom land cross section is isosceles right triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310085364.XA CN103143238B (en) | 2013-03-18 | 2013-03-18 | Pipe groove type liquid distributor applied to flue gas desulfurization tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310085364.XA CN103143238B (en) | 2013-03-18 | 2013-03-18 | Pipe groove type liquid distributor applied to flue gas desulfurization tower |
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| CN103143238A CN103143238A (en) | 2013-06-12 |
| CN103143238B true CN103143238B (en) | 2015-06-10 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103521161A (en) * | 2013-09-30 | 2014-01-22 | 天津大学 | Reinforced bending groove type liquid distributor |
| CN111514823B (en) * | 2020-06-15 | 2022-04-19 | 磐石重工(青岛)股份有限公司 | Liquid distributor of chemical packed tower |
| CN114130164B (en) * | 2021-11-25 | 2024-05-07 | 萍乡市群星化工陶瓷总厂 | Redistribution device for desulfurization waste liquid absorption tower |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4909967A (en) * | 1988-11-03 | 1990-03-20 | Glitsch, Inc. | Liquid distributor assembly for packed tower |
| CN201105171Y (en) * | 2007-10-23 | 2008-08-27 | 浙江工业大学 | Deflection of jet type gas-liquid cross flow type ultra-gravitational field swinging bed device |
| CN201940154U (en) * | 2010-12-24 | 2011-08-24 | 沈阳隆达环保节能集团有限公司 | Air distribution and mass transfer device of desulfurizing tower |
| CN203155056U (en) * | 2013-03-18 | 2013-08-28 | 天津天大天久科技股份有限公司 | Pipe-trough liquid distributor of flue gas desulfurization tower |
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