CN203155069U - Liquid collection and gas distribution device for large flue gas desulfurization tower - Google Patents
Liquid collection and gas distribution device for large flue gas desulfurization tower Download PDFInfo
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- CN203155069U CN203155069U CN 201320121032 CN201320121032U CN203155069U CN 203155069 U CN203155069 U CN 203155069U CN 201320121032 CN201320121032 CN 201320121032 CN 201320121032 U CN201320121032 U CN 201320121032U CN 203155069 U CN203155069 U CN 203155069U
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- riser
- base plate
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- blast cap
- board
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Abstract
The utility model discloses a liquid collection and gas distribution device for a large flue gas desulfurization tower. The device is composed of a variable-section bottom plate riser, a grid-beam type riser, a double-layer type liquid-blocking air cap, a main beam with an inclined channel for guiding a liquid flow, a drawing bucket, an extraction tube and a planar expansion joint. In the all-welded structure preventing liquid escape of the device, the zero escape of falling liquid, sputtering liquid drops and liquid fog, and a lower pressure drop are realized via the double-layer type liquid-blocking air cap; the aperture ratio of the device is increased and anti-corrosion construction is facilitated via the grid-beam type riser; impact foaming is reduced and a side-line extraction amount is guaranteed via the deep drawing bucket and the inclined channel; the liquid leakage of detachable sealing is avoided and the heat deformation caused by a high temperature is skilfully absorbed via the planar expansion joint; and the uniformity of gas distribution is ensured via the risers which are geometrically and uniformly distributed. The device disclosed by the utility model can be widely used for desulfurization towers in steel plants, power plants and the like and applied to large packed towers in the industries such as oil refining, petrochemical and chemical engineering.
Description
Technical field
The utility model belongs to the tower internals in the chemical filler tower, particularly relates to a kind of liquid collecting distribution device of large flue gas desulfurization tower.
Background technology
Along with developing rapidly of large enterprises such as big steel mill, high-power station, great oil refining, big ethene, large chemical fertilizer, the large-scale tower technology has also obtained corresponding development, and tower inner members such as new packing, new tower plate, novel gas-liquid distributor and novel liquid collecting 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 the 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 solved.
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 the concentrated temperature descending section and be provided with carrier ring, on carrier ring, evenly be provided be used to the blast cap that passes flue gas.
Summary of the invention
The purpose of this utility model provides a kind of liquid collecting distribution device of large flue gas desulfurization tower, and it is one of main feature of this device that anti-desulfurizing agent is escaped with drop and mist form.
The utility model is taked following technical scheme for achieving the above object: this liquid collecting distribution device comprises base plate, riser and retaining 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 the extraction bucket that its bottom surface is lower than base plate, the tower wall is provided with and is communicated with the extraction pipe of extracting bucket out, the oblique canal of its groove double as guided liquid-flow of the support girder of base plate central authorities, 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 extraction bucket and is communicated with it, described base plate is provided with the opening of the oblique canal of corresponding girder, the base plate of opening both sides is arranged with puts the grid beam, base plate is provided with the opening of putting the grid beam on the correspondence, put the grid beam on each by two parallel risers and uniformly-spaced be connected in two gussets between the parallel riser and constitute 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 that is made of overlapping up and down upward retaining liquid blast cap and following retaining liquid blast cap and keep off the liquid blast cap, keep off the additional riser that the liquid blast cap is provided with corresponding grid beam type riser or base plate riser down, on, the dual-side that keeps off liquid blast cap long axis direction down is provided with sagging following splashing board.
The utility model can also be taked following technical measures:
Be provided with the plane expansion joint between the periphery of described base plate and the bracing ring, described plane expansion joint by annular riser and be connected in the other direction annular riser up and down the annular upper and lower flat board at two ends constitute, annular upper flat plate and Ta Bi fix, and annular flat support down is in support ring and weld fixing mutually with the base plate periphery.
Described base plate riser is that its longitudinal section is trapezoidal variable cross-section riser.
The following splashing board lower edge of going up retaining liquid blast cap of described two-layer equation retaining liquid blast cap is lower than the suitable for reading of corresponding additional riser, the following splashing board lower edge that keeps off the liquid blast cap down is lower than the suitable for reading of corresponding grid beam type riser or base plate riser, and its difference in height is 20～200mm.
Described upper and lower retaining liquid blast cap is pinnacle horn shape body up, constitutes the two top board symmetries on pinnacle, and the pinnacle angle is 90～140 °.
The joint portion of going up retaining liquid its two top boards dual-side of blast cap and following splashing board up, described pinnacle is provided with the last splashing board that is higher than retaining liquid blast cap pinnacle respectively, and described bottom bending of going up splashing board also is provided with delivery hole.
Described upward retaining liquid blast cap is pinnacle horn shape body down, constitute the two top board symmetries on pinnacle, the pinnacle angle is 90～140 °, the edge of two top boards is provided with sagging following splashing board, two top board two ends are supported with the draining plate at corresponding its angle of cut place respectively, are provided with between draining plate and the angle of cut place, two top board two ends at interval.
The described retaining liquid blast cap of going up is made of ceiling, the dual-side of ceiling long axis direction is arranged with down splashing board and last splashing board, the ceiling two ends are respectively equipped with the exit weir that is connected in the symmetry of splashing board on the dual-side, the splashing board end portion supports has the draining plate that highly is higher than exit weir on two, is provided with between draining plate and the exit weir at interval.
The beneficial effects of the utility model and advantage are: double girder, extraction bucket and the extraction pipe of doing oblique canal in this liquid collecting distribution device constituted liquid stream main channel, space between each riser is a liquid stream channel, owing to adopted the supporting construction of 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 the foaming district, reduce the 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 prevented the leakage of liquid effectively, and has absorbed the thermal deformation that high temperature causes dexterously.Two-layer equation retaining liquid blast cap has been realized falling, and zero of liquid and spattered droplets and droplet escaped and lower pressure falls.The utility model also can be widely used in the large stuffing tower of 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 to go up one of retaining liquid cap structure generalized section.
Accompanying drawing 6 is two generalized sections that go up retaining liquid cap structure.
Accompanying drawing 7 is that Fig. 6 A is to view.
Accompanying drawing 8 is three generalized sections that go up retaining liquid cap structure.
Accompanying drawing 9 is that Fig. 8 A is to view.
Accompanying drawing 10 is plane expansion joint structural profile schematic diagrames.
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 equations retaining liquid blast cap, the last retaining of 11-1 liquid blast cap, retaining liquid blast cap under the 11-2,11-2-1 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 specify the utility model 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 the extraction bucket 4 that its bottom surface is lower than base plate 2, and tower wall 1 is provided with and is communicated with the extraction pipe 5 of extracting bucket 4 out.
Support the oblique canal of girder 3 its groove double as guided liquid-flows of base plate 2 central authorities, 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 extraction bucket 4 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 the correspondence, puts the grid beam on each by two parallel risers and uniformly-spaced be connected in two gussets between the parallel riser to constitute grid beam type riser 10.
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 that is made of overlapping up and down upward retaining liquid blast cap 11-1 and following retaining liquid blast cap 11-2 and keep off liquid blast cap 11.Keep off the additional riser 11-2-1 that liquid blast cap 11-2 is provided with corresponding grid beam type riser 10 or base plate riser 9 down, the dual-side of upper and lower retaining liquid blast cap long axis direction is provided with sagging following splashing board 12.
Last retaining liquid blast cap 11-1 and following retaining liquid blast cap 11-2 are pinnacle horn shape body up, constitute the two top board symmetries on pinnacle, pinnacle angle theta scope is 90～140 °, upper and lower retaining liquid blast cap pinnacle angle unanimity, and the edge of upper and lower retaining liquid blast cap two top boards is provided with sagging following splashing board 12.
12 times beads of following splashing board of going up retaining liquid blast cap 11-1 of two-layer equation retaining liquid blast cap 11 are lower than the upper port of corresponding additional riser 11-2-1, the 12 times beads of following splashing board that keep off liquid blast cap 11-2 down 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.
The joint portion of going up retaining liquid blast cap its two top boards dual-side of 11-1 and following splashing board 12 up, pinnacle shown in Fig. 3,4 is provided with the last splashing board 14 that is higher than retaining liquid blast cap pinnacle as shown in Figure 5 respectively, and the bottom bending of last splashing board also is provided with delivery hole 15.Last splashing board 14 can stop retaining liquid blast cap 11-1 pinnacle to produce splash droplet and liquid mist, and the drop that last splashing board 14 is held back and liquid mist are by delivery hole 15 earial drainages.
The action principle of two-layer equation retaining liquid blast cap 11 is: the liquid major part that self filler layer lower end drips down falls within on the base plate between base plate riser 9 and the grid beam type riser 10, small part liquid drops on going up on the retaining liquid blast cap 11-1 of double-deck retaining liquid blast cap 11, has produced a large amount of droplets when sputtering a large amount of droplets again.The droplet that the sagging following splashing board 12 of the dual-side of upper and lower retaining liquid blast cap long axis direction can effectively stop retaining liquid blast cap 11-1 to sputter enters in the adjacent above-mentioned riser, so the sputter of the liquid that prevented from falling is escaped.
Under running status, gas blows out through two-layer equation retaining liquid blast cap 11 from above-mentioned each riser, and droplet can not be escaped.But when stopping, because not having air-flow in above-mentioned each riser, it is that the following splashing board 12 of 20～200mm and lock fog-zone that corresponding riser port constitutes 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 retaining liquid blast cap 11 has constituted double-deck gas passage, so the liquid collecting/distribution device less than traditional individual layer gas passage falls in its pressure.
The retaining liquid blast cap 11-1 that goes up of the present utility model can also adopt following two kinds of versions.
Shown in Fig. 6,7, last retaining liquid blast cap 11-1 is pinnacle horn shape body down, constitute the two top board symmetries on pinnacle, the pinnacle angle is 90～140 °, the edge of two top boards is provided with sagging following splashing board 12, two top board two ends are supported with the draining plate 16 at corresponding its angle of cut place respectively, are provided with between draining plate 16 and the angle of cut place, two top board two ends at interval.
Pinnacle going up retaining liquid blast cap 11-1 self and can partly stop the drop that splashes down, the liquid stream that draining plate 16 can stop and guide two top board angle of cut places to form avoids its sputter to cross far away and produce and splash.
Shown in Fig. 8,9, last retaining liquid blast cap 11-1 is made of ceiling, the dual-side of ceiling long axis direction is arranged with down splashing board 12 and last 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 the dual-side, antisplash 14 end portion supports have the draining plate 16 that highly is higher than exit weir on two, are provided with between draining plate 16 and the exit weir 17 at interval.Last splashing board 14 can prevent that ceiling from producing splash droplet and liquid mist, highly for making the ceiling surface, the exit weir 17 of 10-20mm forms acquisition layer, the drop that falls into acquisition layer is cushioned and avoid producing and 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 by annular riser 8-1 and be connected in the other direction annular riser up and down last ring plate 8-2, time ring plate 8-3 at two ends constitute, 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 annular dull and stereotyped 8-3 down is supported in support ring 7 and fixes with base plate 2 peripheral overlap weldings.Plane expansion joint 8 both guaranteed that liquid does not have and leak to have escaped, and creatively solved the weld cracking accident that the thermal deformation that produces because of the temperature difference and thermal stress cause again, 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 retaining 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 the extraction bucket that its bottom surface is lower than base plate, the tower wall is provided with and is communicated with the extraction pipe of extracting bucket out, the oblique canal of its groove double as guided liquid-flow of the support girder of base plate central authorities, 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 extraction bucket and is communicated with it, described base plate is provided with the opening of the oblique canal of corresponding girder, the base plate of opening both sides is arranged with puts the grid beam, base plate is provided with the opening of putting the grid beam on the correspondence, put the grid beam on each by two parallel risers and uniformly-spaced be connected in two gussets between the parallel riser and constitute 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 that is made of overlapping up and down upward retaining liquid blast cap and following retaining liquid blast cap and keep off the liquid blast cap, keep off the additional riser that the liquid blast cap is provided with corresponding grid beam type riser or base plate riser down, on, the dual-side that keeps off liquid blast cap long axis direction down is provided with sagging following 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 the bracing ring, described plane expansion joint by annular riser and be connected in the other direction annular riser up and down the annular upper and lower flat board at two ends constitute, annular upper flat plate and Ta Bi fix, and annular flat support down is in support ring and weld fixing mutually 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: the following splashing board lower edge of going up retaining liquid blast cap of described two-layer equation retaining liquid blast cap is lower than the suitable for reading of corresponding additional riser, the following splashing board lower edge that keeps off the liquid blast cap down is lower than the suitable for reading of corresponding grid beam type riser or base plate riser, and 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 retaining liquid blast cap is pinnacle horn shape body up, constitutes the two top board symmetries on pinnacle, the pinnacle angle is 90～140 °.
6. liquid collecting distribution device according to claim 5, it is characterized in that: the joint portion of going up retaining liquid its two top boards dual-side of blast cap and following splashing board up, described pinnacle is provided with the last splashing board that is higher than retaining liquid blast cap pinnacle respectively, and described bottom bending of going up splashing board also is provided with delivery hole.
7. liquid collecting distribution device according to claim 1, it is characterized in that: described upward retaining liquid blast cap is pinnacle horn shape body down, constitute the two top board symmetries on pinnacle, the pinnacle angle is 90～140 °, the edge of two top boards is provided with sagging following splashing board, two top board two ends are supported with the draining plate at corresponding its angle of cut place respectively, are provided with between draining plate and the angle of cut place, two top board two ends at interval.
8. liquid collecting distribution device according to claim 1, it is characterized in that: the described retaining liquid blast cap of going up is made of ceiling, the dual-side of ceiling long axis direction is arranged with down splashing board and last splashing board, the ceiling two ends are respectively equipped with the exit weir that is connected in the symmetry of splashing board on the dual-side, the splashing board end portion supports has the draining plate that highly is higher than exit weir on two, is provided with between draining plate and the exit weir at interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320121032 CN203155069U (en) | 2013-03-18 | 2013-03-18 | Liquid collection and gas distribution device for large flue gas desulfurization tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320121032 CN203155069U (en) | 2013-03-18 | 2013-03-18 | Liquid collection and gas distribution device for large flue gas desulfurization tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203155069U true CN203155069U (en) | 2013-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320121032 Withdrawn - After Issue CN203155069U (en) | 2013-03-18 | 2013-03-18 | Liquid collection and gas distribution device for large flue gas desulfurization tower |
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| CN (1) | CN203155069U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105233785A (en) * | 2015-09-16 | 2016-01-13 | 天津大学 | Efficient angle steel tray |
-
2013
- 2013-03-18 CN CN 201320121032 patent/CN203155069U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105233785A (en) * | 2015-09-16 | 2016-01-13 | 天津大学 | Efficient angle steel tray |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130828 Effective date of abandoning: 20150318 |
|
| RGAV | Abandon patent right to avoid regrant |