CN103111180A - Liquid collecting and gas distributing device for large-scale flue gas desulfurization tower - Google Patents
Liquid collecting and gas distributing device for large-scale flue gas desulfurization tower Download PDFInfo
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- CN103111180A CN103111180A CN2013100850834A CN201310085083A CN103111180A CN 103111180 A CN103111180 A CN 103111180A CN 2013100850834 A CN2013100850834 A CN 2013100850834A CN 201310085083 A CN201310085083 A CN 201310085083A CN 103111180 A CN103111180 A CN 103111180A
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Abstract
The invention provides a liquid collecting and gas distributing device for a large-scale flue gas desulfurization tower. The device consists of a cross section-variable base plate gas raising pipe, a grid beam type gas raising pipe, a double-layer type liquid baffling hood, an inclined channel type main beam with a function of guiding liquid flow, an extracting hopper, an extracting pipe and a plane expansion joint. The device has an all-welded structure for preventing liquid from escaping, the liquid falling, the liquid drop sputtering and the zero escaping of liquid fog and the lower pressure drop can be realized due to the double-layer type liquid baffling hood, the aperture ratio of the device can be increased and the convenient corrosion prevention can be carried out due to the grid beam type gas raising pipe, the impacting foaming can be reduced and the lateral line extraction quantity can be guaranteed due to the deep extracting hopper and inclined channel; a detachable sealed liquid leakage device can be completely eradicated due to the plane expansion joint, and the thermal deformation caused by high temperature can be skillfully absorbed; and the gas distributing evenness can be guaranteed due to the gas raising pipes which are geometrically and evenly distributed. The device can be widely used for the desulfurization tower in the steel mill, the electric power plant and the like, and the large-scale packed tower in the industries of oil refining, petrifaction, chemical industry and the like.
Description
Technical field
The invention belongs to the tower internals in the chemical filler tower, particularly relate to a kind of liquid collecting distribution device of large flue gas desulfurization tower.
Background technology
Along with developing rapidly of the large enterprises such as large steel mill, high-power station, great oil refining, large ethene, large chemical fertilizer, the large-scale tower technology has also obtained corresponding development, and the tower inner members such as new packing, new tower plate, novel gas-liquid distributor and New collective liquid distribution device also emerge in an endless stream.
Under large flue gas desulfurization tower state out of service, the escape problem of desulfurizing agent is sulfur removal technology or installs long-term insoluble technical problem, mainly escape approach of desulfurizing agent is the riser of liquid collecting distribution device between desulfurizing tower absorber portion and washing section, and desulfurizing agent is scurried into riser with drop and mist form.Traditional catch tray is relatively poor to taken precautions against effect by the above-mentioned escape phenomenon of the caused desulfurizing agent of sputter, so the above-mentioned escape of desulfurizing agent and similar phenomenon are one of existing large flue gas desulfurization tower or other large stuffing tower technical problem underlying anxious to be resolved.
Be included in the disclosed technical scheme of the utility model of Granted publication CN202555165U " a kind of single entry desulfurizer " between absorption spray section and concentrated temperature descending section and be provided with carrier ring, evenly be provided be used to the blast cap that passes flue gas on carrier ring.
Summary of the invention
The objective of the invention is to disclose a kind of liquid collecting distribution device of large flue gas desulfurization tower, it is one of main feature of this device that anti-desulfurizing agent is escaped with drop and mist form.
the present invention takes following technical scheme for achieving the above object: this liquid collecting distribution device comprises base plate, riser and gear liquid blast cap thereof, feature is, the perimeter support of described base plate is in the bracing ring of tower wall, base plate one side recess is provided with its bottom surface lower than the extraction bucket of base plate, the tower wall is provided with and is communicated with the extraction pipe of extracting bucket out, its groove of support girder of base plate central authorities doubles as the oblique canal of guided liquid-flow, corresponding tiltedly girder one end of canal shallow end is supported on the bearing that is fixed in the tower wall, the corresponding tiltedly girder other end of canal deep end is supported in a side of extracting bucket out and is communicated with it, described base plate is provided with the opening of the oblique canal of corresponding girder, the bottom board symmetry of opening both sides is provided with puts the grid beam, base plate is provided with the opening of putting the grid beam on correspondence, put the grid beam on each by two parallel risers and uniformly-spaced be connected in two gussets between parallel riser and consist of grid beam type riser, described base plate is evenly distributed with the base plate riser, described grid beam type riser and base plate riser are equipped with the two-layer equation gear liquid blast cap that is made of overlapping up and down upper gear liquid blast cap and lower block liquid blast cap, lower block liquid blast cap is provided with the additional riser of corresponding grid beam type riser or base plate riser, on, the dual-side of lower block liquid blast cap long axis direction is provided with sagging lower splashing board.
The present invention can also take following technical measures:
Be provided with the plane expansion joint between the periphery of described base plate and bracing ring, described plane expansion joint is made of the annular upper and lower flat board that annular riser and opposite direction are connected in two ends, annular riser up and down, annular upper flat plate and Ta Bi fix, and the lower flat support of annular is welded and fixed mutually in support ring and with the base plate periphery.
Described base plate riser is that its longitudinal section is trapezoidal variable cross-section riser.
Suitable for reading along lower than corresponding additional riser under the lower splashing board of the upper gear liquid blast cap of described two-layer equation gear liquid blast cap, suitable for reading along lower than corresponding grid beam type riser or base plate riser under the lower splashing board of lower block liquid blast cap, its difference in height is 20～200mm.
Described upper and lower gear liquid blast cap is pinnacle horn shape body up, consists of two roof symmetrics on pinnacle, and the pinnacle angle is 90～140 °.
Upper its two top boards dual-side of gear liquid blast cap and the joint portion of lower splashing board up, described pinnacle is provided with respectively upper splashing board higher than upper gear liquid blast cap pinnacle, and the bottom bending of described upper splashing board also is provided with delivery hole.
Described upper gear liquid blast cap is pinnacle horn shape body down, consist of two roof symmetrics on pinnacle, the pinnacle angle is 90～140 °, the edge of two top boards is provided with sagging lower splashing board, two top board two ends are supported with respectively the draining plate at corresponding its angle of cut place, are provided with the interval between draining plate and two angle of cut places, top board two ends.
Described upper gear liquid blast cap is made of ceiling, the dual-side of ceiling long axis direction is arranged with lower splashing board and upper splashing board, the ceiling two ends are respectively equipped with the exit weir that is connected in the symmetry of splashing board on dual-side, on two, the splashing board end portion supports has height higher than the draining plate of exit weir, is provided with the interval between draining plate and exit weir.
Beneficial effect of the present invention and advantage are: double girder, extraction bucket and the extraction pipe of doing oblique canal in this liquid collecting distribution device consisted of liquid stream main channel, space between each riser is a liquid stream channel, due to the supporting construction that has adopted underneath type girder and overhead grid beam, and make overhead grid beam become grid beam type riser, therefore this device is guaranteeing under the inhomogeneity prerequisite of gas distribution, improved percent opening, percent opening can reach 30%, and is convenient to anticorrosive construction.The extraction bucket of dark bucket shape formula, oblique canal can dwindle and impact foaming zone, reduce and impact foamed phenomenon and guaranteed the side line produced quantity.The design of plane expansion joint makes this device become full solder type structure, has effectively prevented the leakage of liquid, and has absorbed dexterously the thermal deformation that high temperature causes.Two-layer equation gear liquid blast cap zero of liquid and spattered droplets and the droplet of having realized falling escaped and lower Pressure Drop.The present invention also can be widely used in the large stuffing tower of the industries such as oil refining, petrochemical industry, chemical industry.
Description of drawings
Accompanying drawing 1 is the example structure generalized section.
Accompanying drawing 2 is that Figure 1A is to view.
Accompanying drawing 3 is Fig. 2 base plate riser structure A-A generalized sections.
Accompanying drawing 4 is Fig. 2 grid beam type riser structure B-B generalized sections.
Accompanying drawing 5 is one of upper gear liquid cap structure generalized sections.
Accompanying drawing 6 is two generalized sections of upper gear liquid cap structure.
Accompanying drawing 7 is that Fig. 6 A is to view.
Accompanying drawing 8 is three generalized sections of upper gear liquid cap structure.
Accompanying drawing 9 is that Fig. 8 A is to view.
Accompanying drawing 10 is plane expansion joint structure generalized sections.
Number in the figure: 1 tower wall, 2 base plates, 2-1 recess, 2-2 opening, 3 girders, 4 extract bucket, 5 extraction pipes, 6 bearings, 7 bracing rings out, 8 plane expansion joints, 8-1 annular riser, 8-2 annular upper flat plate, dull and stereotyped under the 8-3 annular, 9 base plate riseies, 10 grid beam type riseies, 11 two-layer equation gear liquid blast caps, the upper gear of 11-1 liquid blast cap, 11-2 lower block liquid blast cap, 11-2-1 adds riser, 12 times splashing boards, 13 end plates, splashing board on 14,15 delivery holes, 16 draining plates, 17 exit weirs.
The specific embodiment
Further illustrate the present invention below in conjunction with embodiment and accompanying drawing thereof.
Embodiment as shown in Figure 1, 2,
One side recess 2-1 place of this liquid collecting distribution device base plate 2 is provided with its bottom surface lower than the extraction bucket 4 of base plate 2, and tower wall 1 is provided with and is communicated with the extraction pipe 5 of extracting bucket 4 out.
Girder 3 its grooves of support baseboard 2 central authorities double as the oblique canal of guided liquid-flow, and base plate is provided with the opening 2-2 of the oblique canal of corresponding girder.Corresponding tiltedly girder 3 one ends of canal shallow end are supported on the bearing 6 that is fixed in tower wall 1, and corresponding tiltedly girder 3 other ends of canal deep end are supported in a side of extracting bucket 4 out and are communicated with it.
Be arranged with on the base plate 2 of the opening 2-2 both sides of the oblique canal of girder and put the grid beam, base plate 2 is provided with the opening of putting the grid beam on correspondence, puts the grid beam on each by two parallel risers and uniformly-spaced be connected in two gussets between parallel riser to consist of grid beam type riser 10.
As shown in Fig. 1,2,3,4, described grid beam type riser 10 and base plate riser 9 are equipped with the two-layer equation gear liquid blast cap 11 that is made of overlapping up and down upper gear liquid blast cap 11-1 and lower block liquid blast cap 11-2.Lower block liquid blast cap 11-2 is provided with the additional riser 11-2-1 of corresponding grid beam type riser 10 or base plate riser 9, and the dual-side of upper and lower gear liquid blast cap long axis direction is provided with sagging lower splashing board 12.
Upper gear liquid blast cap 11-1 and lower block liquid blast cap 11-2 are pinnacle horn shape body up, consist of two roof symmetrics on pinnacle, pinnacle angle theta scope is 90～140 °, and upper and lower gear liquid blast cap pinnacle angle is consistent, and the edge of upper and lower gear liquid blast cap two top boards is provided with sagging lower splashing board 12.
12 times beads of lower splashing board of the upper gear liquid blast cap 11-1 of two-layer equation gear liquid blast cap 11 are lower than the upper port of corresponding additional riser 11-2-1,12 times beads of lower splashing board of lower block liquid blast cap 11-2 are lower than the upper port of corresponding grid beam type riser 10 or base plate riser 9, and its difference in height h scope is 20～200mm.
Upper its two top boards dual-side of gear liquid blast cap 11-1 and the joint portion of lower splashing board 12 up, pinnacle shown in Fig. 3,4 is provided with respectively as shown in Figure 5 the upper splashing board 14 higher than upper gear liquid blast cap pinnacle, and the bottom bending of upper splashing board also is provided with delivery hole 15.Upper splashing board 14 can stop gear liquid blast cap 11-1 pinnacle generation splash droplet and liquid mist, and the drop that upper splashing board 14 is held back and liquid mist are by delivery hole 15 earial drainages.
The action principle of two-layer equation gear liquid blast cap 11 is: the liquid major part that self filler layer lower end drips down falls within on base plate between base plate riser 9 and grid beam type riser 10, small part liquid drops on the upper gear liquid blast cap 11-1 of double-deck gear liquid blast cap 11, has produced again a large amount of droplets when sputtering a large amount of droplets.The droplet that the sagging lower splashing board 12 of the dual-side of upper and lower gear liquid blast cap long axis direction can effectively stop gear liquid blast cap 11-1 to sputter enters in adjacent above-mentioned riser, therefore the sputter of the liquid that prevented from falling is escaped.
Under running status, gas blows out through two-layer equation gear liquid blast cap 11 from above-mentioned each riser, and droplet can not be escaped.But when stopping, because there is no air-flow in above-mentioned each riser, it is that the lower splashing board 12 of 20～200mm and corresponding riser port consists of lock fog-zone enter riser and escape into lower space that droplet also can not be crossed by discrepancy in elevation h, thereby has effected a radical cure the technical barrier that droplet is escaped.In addition, two-layer equation gear liquid blast cap 11 has consisted of double-deck gas passage, therefore its Pressure Drop is less than the liquid collecting/distribution device of traditional individual layer gas passage.
Upper gear liquid blast cap 11-1 of the present invention can also adopt following two kinds of versions.
As shown in Fig. 6,7, upper gear liquid blast cap 11-1 is pinnacle horn shape body down, consist of two roof symmetrics on pinnacle, the pinnacle angle is 90～140 °, the edge of two top boards is provided with sagging lower splashing board 12, two top board two ends are supported with respectively the draining plate 16 at corresponding its angle of cut place, are provided with the interval between draining plate 16 and two angle of cut places, top board two ends.
Pinnacle upper gear liquid blast cap 11-1 self down can partly stop the drop that splashes, and draining plate 16 can stop and guide the liquid stream of two top board angle of cut place's formation, avoids its sputter to cross far to produce and splashes.
As shown in Fig. 8,9, upper gear liquid blast cap 11-1 is made of ceiling, the dual-side of ceiling long axis direction is arranged with lower splashing board 12 and upper splashing board 14, the ceiling two ends are respectively equipped with the exit weir 17 that is connected in the symmetry of splashing board 14 on dual-side, on two, antisplash 14 end portion supports have height higher than the draining plate 16 of exit weir, are provided with the interval between draining plate 16 and exit weir 17.Upper splashing board 14 can prevent that ceiling from producing splash droplet and liquid mist, highly make ceiling surface formation acquisition layer for the exit weir 17 of 10-20mm, the drop that falls into acquisition layer is cushioned and avoid generation to splash, draining plate 16 can guide the direction of exit weir earial drainage, avoids the liquid stream of its generation to produce splash droplet and liquid mist again.
As shown in figure 10, be provided with plane expansion joint 8 between the bracing ring 7 of base plate 2 its peripheries and tower wall 1, described plane expansion joint 8 is made of upper ring plate 8-2, the lower ring plate 8-3 that annular riser 8-1 and opposite direction are connected in two ends, annular riser up and down, and annular riser 8-1 is easily deformable thin plate.Annular upper flat plate 8-2 and 1 fillet welding of tower wall are fixed, and the lower dull and stereotyped 8-3 of annular is supported in support ring 7 and fixes with the peripheral overlap welding of base plate 2.Plane expansion joint 8 had both guaranteed liquid without leak escaping, and had creatively solved again the weld cracking accident that the thermal deformation that produces because of the temperature difference and thermal stress cause, and it has absorbed the plane thermal deformation of base plate 2 effectively, has eliminated thermal stress.
Claims (8)
1. the liquid collecting distribution device of large flue gas desulfurization tower, comprise base plate, riser and gear liquid blast cap thereof, it is characterized in that: the perimeter support of described base plate is in the bracing ring of tower wall, base plate one side recess is provided with its bottom surface lower than the extraction bucket of base plate, the tower wall is provided with and is communicated with the extraction pipe of extracting bucket out, its groove of support girder of base plate central authorities doubles as the oblique canal of guided liquid-flow, corresponding tiltedly girder one end of canal shallow end is supported on the bearing that is fixed in the tower wall, the corresponding tiltedly girder other end of canal deep end is supported in a side of extracting bucket out and is communicated with it, described base plate is provided with the opening of the oblique canal of corresponding girder, the bottom board symmetry of opening both sides is provided with puts the grid beam, base plate is provided with the opening of putting the grid beam on correspondence, put the grid beam on each by two parallel risers and uniformly-spaced be connected in two gussets between parallel riser and consist of grid beam type riser, described base plate is evenly distributed with the base plate riser, described grid beam type riser and base plate riser are equipped with the two-layer equation gear liquid blast cap that is made of overlapping up and down upper gear liquid blast cap and lower block liquid blast cap, lower block liquid blast cap is provided with the additional riser of corresponding grid beam type riser or base plate riser, on, the dual-side of lower block liquid blast cap long axis direction is provided with sagging lower splashing board.
2. liquid collecting distribution device according to claim 1, it is characterized in that: be provided with the plane expansion joint between the periphery of described base plate and bracing ring, described plane expansion joint is made of the annular upper and lower flat board that annular riser and opposite direction are connected in two ends, annular riser up and down, annular upper flat plate and Ta Bi fix, and the lower flat support of annular is welded and fixed mutually in support ring and with the base plate periphery.
3. liquid collecting distribution device according to claim 1, it is characterized in that: described base plate riser is that its longitudinal section is trapezoidal variable cross-section riser.
4. liquid collecting distribution device according to claim 1, it is characterized in that: suitable for reading along lower than corresponding additional riser under the lower splashing board of the upper gear liquid blast cap of described two-layer equation gear liquid blast cap, suitable for reading along lower than corresponding grid beam type riser or base plate riser under the lower splashing board of lower block liquid blast cap, its difference in height is 20～200mm.
5. liquid collecting distribution device according to claim 1, it is characterized in that: described upper and lower gear liquid blast cap is pinnacle horn shape body up, consists of two roof symmetrics on pinnacle, the pinnacle angle is 90～140 °.
6. liquid collecting distribution device according to claim 5, it is characterized in that: upper its two top boards dual-side of gear liquid blast cap and the joint portion of lower splashing board up, described pinnacle is provided with respectively upper splashing board higher than upper gear liquid blast cap pinnacle, and the bottom bending of described upper splashing board also is provided with delivery hole.
7. liquid collecting distribution device according to claim 1, it is characterized in that: described upper gear liquid blast cap is pinnacle horn shape body down, consist of two roof symmetrics on pinnacle, the pinnacle angle is 90～140 °, the edge of two top boards is provided with sagging lower splashing board, two top board two ends are supported with respectively the draining plate at corresponding its angle of cut place, are provided with the interval between draining plate and two angle of cut places, top board two ends.
8. liquid collecting distribution device according to claim 1, it is characterized in that: described upper gear liquid blast cap is made of ceiling, the dual-side of ceiling long axis direction is arranged with lower splashing board and upper splashing board, the ceiling two ends are respectively equipped with the exit weir that is connected in the symmetry of splashing board on dual-side, on two, the splashing board end portion supports has height higher than the draining plate of exit weir, is provided with the interval between draining plate and exit weir.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310085083.4A CN103111180B (en) | 2013-03-18 | 2013-03-18 | Liquid collecting and gas distributing device for large-scale flue gas desulfurization tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310085083.4A CN103111180B (en) | 2013-03-18 | 2013-03-18 | Liquid collecting and gas distributing device for large-scale flue gas desulfurization tower |
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| CN103111180A true CN103111180A (en) | 2013-05-22 |
| CN103111180B CN103111180B (en) | 2015-03-18 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301646A (en) * | 2013-07-11 | 2013-09-18 | 上海三爱富新材料股份有限公司 | Liquid distributor |
| CN105042612A (en) * | 2015-08-24 | 2015-11-11 | 西安交通大学 | Smoke heater with wet smoke composite type low-temperature corrosion resistant function |
| CN106237824A (en) * | 2016-08-23 | 2016-12-21 | 陈淼 | A kind of minimum discharge desulfurization and dedusting eddy flow pallet spray tower |
| CN108126509A (en) * | 2018-01-04 | 2018-06-08 | 台鹰环境工程有限公司 | High-efficiency desulfurization smoke distributing equipment |
| CN109331634A (en) * | 2018-12-03 | 2019-02-15 | 杭州蕴泽环境科技有限公司 | A kind of gas-water separation drainage set and the desulfurizing tower using the gas-water separation drainage set |
| CN109331637A (en) * | 2018-11-27 | 2019-02-15 | 宜兴市海纳环境工程有限公司 | Liquid trap device of the wet desulphurization with flue gas even distribution function |
| CN112973323A (en) * | 2021-04-19 | 2021-06-18 | 佛山市粤金海机械设备有限公司 | Coking coke oven flue gas multi-pollutant coprocessing device |
| CN113731132A (en) * | 2021-08-05 | 2021-12-03 | 中石化宁波工程有限公司 | High-ventilation-rate gas-liquid distributor for flue gas desulfurization tower |
| CN114322457A (en) * | 2022-01-07 | 2022-04-12 | 杭州制氧机集团股份有限公司 | Overflow liquid guiding distributor for treating low liquid volume |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301646A (en) * | 2013-07-11 | 2013-09-18 | 上海三爱富新材料股份有限公司 | Liquid distributor |
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| CN109331634A (en) * | 2018-12-03 | 2019-02-15 | 杭州蕴泽环境科技有限公司 | A kind of gas-water separation drainage set and the desulfurizing tower using the gas-water separation drainage set |
| CN109331634B (en) * | 2018-12-03 | 2024-02-27 | 杭州蕴泽环境科技有限公司 | Gas-water separation liquid guide device and desulfurizing tower using same |
| CN112973323A (en) * | 2021-04-19 | 2021-06-18 | 佛山市粤金海机械设备有限公司 | Coking coke oven flue gas multi-pollutant coprocessing device |
| CN113731132A (en) * | 2021-08-05 | 2021-12-03 | 中石化宁波工程有限公司 | High-ventilation-rate gas-liquid distributor for flue gas desulfurization tower |
| CN114322457A (en) * | 2022-01-07 | 2022-04-12 | 杭州制氧机集团股份有限公司 | Overflow liquid guiding distributor for treating low liquid volume |
| CN114322457B (en) * | 2022-01-07 | 2023-08-22 | 杭氧集团股份有限公司 | Overflow liquid guide distributor for treating low liquid amount |
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