CN101618291A - Wet scrubber tray - Google Patents
Wet scrubber tray Download PDFInfo
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- CN101618291A CN101618291A CN 200910163998 CN200910163998A CN101618291A CN 101618291 A CN101618291 A CN 101618291A CN 200910163998 CN200910163998 CN 200910163998 CN 200910163998 A CN200910163998 A CN 200910163998A CN 101618291 A CN101618291 A CN 101618291A
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- tower tray
- tray
- flat plate
- girth member
- porous flat
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Abstract
An improved wet scrubber tray provides increased resistance to vibration-induced cracking. The tray is self supporting to eliminate wastage of raw material, and additional internal stiffeners added to the tray make multiple intermediate stiffeners. The connection of the intermediate stiffeners to th e perforated bottom plate is changed to eliminate the shop weld in the bottom plate. The holes in the perforated bottom plate are repositioned so that the y are moved away from the boundaries of the tray to reduce their influence on boundary conditions. The thickness of the tray material may be increased to lower the vibratory stresses. The mechanism for holding the trays themselves within the spray absorber tower is changed so that the trays are now held do wn by plate material that is attached to the support grid, but not to the trays . Three field welds are applied to the sides of each tray to hold the trays in place relative to each other and are strategically placed to allow adjacent side stiffeners to act together as a composite section, thus increasing their strength. Elastomeric material such as neoprene is used at the tray-to-grid attachments to increas e the damping of the system. Formed features in the trays such as single or multip le ribs, bosses, domes or dimples may also be provided to increase tray stiffne ss or influence wet scrubber performance.
Description
Technical field
The application relates to the method and apparatus that is used to obtain the gas-liquid counter current contact, wet scrubber for example, and it relates to making and comprises the slurries or the solution that absorb the active material of media as chemical reaction and contact with the flue gas that comprises oxysulfide.More especially, the application relates to the gas-liquid contanct equipment of a kind of improved tray structure and this structure.
Background technology
Be used for removing oxysulfide (SO from the flue gas of fossil-fuel-fired generation
x) the wet scrubbing gas-liquid contact system be known.Referring to for example author is the U.S. Patent No. 4263021 of Downs etc., and therefore its content is quoted as a reference herein fully.Steam/its generation and use, the 41st edition, Kitto andStultz, Eds., Copyright
2005, The Babcock ﹠amp; Wilcox Company, wherein the 35th chapter provides and has been used to remove SO
xThe other details of wet scrubbing system, its content also so is herein quoted as a reference fully.Such system is also referred to as wet flue-gas devulcanization (WFGD) system.
Fig. 1 and 2 has demonstrated the composition of a kind of known wet scrubbing system, and total terrestrial reference is designated as 10, is recorded in the Steam 41 that preamble is quoted
StBe loaded with SO
2Flue gas 12 enter from the about midpoint of a side of spray tower absorber 14, and discharge by changeover portion 16 at the top.The top of module (absorption region 18) is used for flue gas 12 washed and removes SO
2, and as a whole slurry reaction pond (also often being called as circulating slot and zoneofoxidation 20) is done in the bottom of module thus to finish chemical reaction output gypsum.Other key components that demonstrate comprise slurries recirculation pump 22, shower nozzle 24 (its conventional or layer border spatial mode) and be used for the nozzle of slurries injection, be used for moisture content and carry minimized moisture content separator 26 (being typically the chevron type), oxidation air spraying system 28, be used to prevent that thereby slurry reaction jar blender or agitator 30 that precipitates and the inhomogeneous distribution that reduces flue gas stream from strengthening removal SO
2The porous tower tray 32 of effect.The flue gas of drawing from changeover portion 16 is sent the flue gas 34 of cleaning from wet scrubber 14.
Recently, after the regular period use, some porous tower tray has begun to occur breaking.Breaking like this appears at two zones.
Rupture location 1.In the girth member of center, on-the-spot welding will influence tower tray faces with it and connects tower tray and couple together, and slight crack is found that end that is close in on-the-spot welding that is positioned at girth member.These slight cracks are found from on-the-spot welding position, extend horizontally in the girth member plate of center.The orientation of slight crack shows that it follows the maximum deflection pressure line that is caused that is displaced sideways by the drift angle of center girth member.Cause that mobile power is considered to flue gas and/or slurries and sprays any impulsive force to girth member.The starting point of on-the-spot welding is caused by the intrinsic fatigue strength reduction coefficient (FSRF) of all welding.
Rupture location 2.Contiguous connect central reinforce member to Porous Base two intermittence the workshop pad the Porous Base zone, and be connected the intermittence erection welding point of tower tray to the steel supportive grid.On-the-spot welding is positioned at the terminal edge of porous base platform.Observed slight crack originates in the end of welding portion, extends to the nearest hole in the porous base platform.Some occasion slight crack may be initial from the two ends of a plurality of welding portions.Such situation can influence the support boundary condition of porous base platform so that chain mode of breaking to take place.Such chain reaction diminishes the complete structure of porous base platform, causes the major part of porous base platform to drop, and reduces the tower tray utilization ratio and produces the possibility that fragment is inhaled into the risk of slurries recirculation pump.
Metallurgical experimental verification to break be because mechanical fatigue.This fatigue is considered to be caused by the mechanical oscillation that the unknown is originated.Not having evidence to show is that the pressure erosion is broken or non-plastic fracture.Close on welding to add heat-affected zone (HAZ) also tested and be found to be gratifying state.
Summary of the invention
The invention provides a kind of improved wet scrubbing porous tower tray, its provide strengthen vibration is caused the resistance of breaking, its simplicity of design, construction of stable, and make cheap.A plurality of characteristics of improved wet scrubber tray can be adopted individually or in the mode of any combination.
Therefore, an aspect of of the present present invention is meant the edge of revising tower tray so that the tower tray self-supporting and the waste of stopping raw material.Original tray design has a high rim and a low edge, and it needs the on-the-spot welding of the high rim of this low edge and adjacent trays to satisfy its support demand.Such structure has caused the extra shearing manipulation of tower tray assembler and the waste of material.By the edge strengthening part of two same height is provided, the intensity of tower tray is strengthened greatly.The highly difficult scene welding of low edge and high rim has also been exempted in this variation.In addition, eliminated this on-the-spot splintering problem that helps to have solved at breakdown point 1 that welds.
Another aspect of the present invention is to point to tower tray to increase an internal reinforcement spare so that have two middle girth members.Original tray design has a center girth member, and it is as owing to the baffle plate of functional reason uses, and reinforcing the porous base platform, and provides positive support for the edge strengthening part.A problem of this design is not prevent that still the edge strengthening part from curling.Increase an internal reinforcement spare and eliminated the possibility of the bending that gas or jet impact cause.The interests of looking after this one side are also welded by allowing to carry out the workshop at two edges of internal reinforcement spare in above-mentioned aspect.Original tray design requires the high rim of the end of on-the-spot welding center girth member to the tower tray that closes on.This on-the-spot welding provides the rupture starting point of burst region 1.By some variation in the unique design of internal reinforcement spare, internal reinforcement spare can be installed by the workshop or on-the-spot the installation.
Yet another aspect of the present invention is meant and changes the middle girth member and the connected mode of porous base platform, to eliminate the workshop welding in base platform.The design that this is new in a preferred embodiment, uses 1 inch bonding jumper that wherein has slit to fix the bottom porous flat plate.The slit that in the porous flat plate of bottom, has same pattern.In this design, middle girth member has protuberance at its bottom margin, and these protuberances pass slit with protrusion.The soldered subsequently last 1 inch bar of protuberance.There is not fusion between 1 inch bar and the bottom porous flat plate.In addition, specify a kind of welding procedure residual to minimize welding stress.
In addition, another aspect of the present invention relates to the hole that relocates on the porous base platform, reduces their influences under boundary condition so that they are removed from the boundary of tower tray.Here the girth member in the middle of prolonging especially definitely is arranged in this hole, place so that provide platform for the attached slit of girth member.
Yet relating to the thickness that increases the tower tray material, another aspect of the present invention can cause the vibration stress that breaks with reduction.This increase of thickness, the same with the increase of internal reinforcement spare, also will increase the intrinsic frequency of tower tray.What fully confirmed is that displacement and stress in vibrational structure can reduce with the increase and decrease of frequency.Reduce vibration stress and may be and reduce tired effective method.
However, another aspect of the present invention relates to the change that is used to keep the mechanism of tower tray self in spraying in the absorption tower; According to the present invention, tower tray is fixed by the plate material that is connected to support grid (rather than being connected to tower tray) now.This feature mainly is the on-the-spot remnants that weld to be maintained beyond the porous base platform set.Yet another aspect of the present invention relates to three on-the-spot the welding so that keep tower tray in the appropriate location that is relative to each other connection of edge application to each tower tray.These on-the-spot welding are more prone to implement than the welding of the scene on original tower tray.Except keep tower tray in position, these weld diplomatic distribution allowing adjacent edge strengthening part as the compound section acting in conjunction, thereby increase their intensity.
Another aspect of the present invention relates in tower tray and being connected of grid and adopts for example elastomeric material of chloroprene rubber material.This chloroprene rubber material is added into so that in the sharp keen edge of fixed flat planar the tower tray base platform is played cushioning effect.Experiment afterwards shows that the chloroprene rubber material has increased the damping of system.Scientific fact is to introduce the reaction that additional damping has reduced system in vibrational system, so reduced the stress in the structure.Increase this chloroprene rubber material and also have extra benefit, any side that tower tray and support grid apply is moved or limited and keep apart.In a preferred embodiment, a kind of chloroprene rubber of extruding " lining " is used, and has all placed chloroprene rubber in the top and the bottom of tower tray.Experiment shows, maximum damping is provided like this.
Another aspect of the present invention is meant a kind of reinforcing tower tray that is used for wet scrubbing apparatus, and it has one or more features, for example at the ribs of tower tray bottom.Ribs can have multiple profile and extend with either direction on tower tray, so that needed intensity is provided.Replacedly, or in addition additionally, the perforation in the tower tray can be provided with by perforation punching press or the burr that forms around perforation indentation trace.Further, can on tower tray, provide single or multiple domes or outstanding, or depression is to provide additional reinforcing.
If by adopting these features to reach required intensity, rather than adopt thicker material to make tower tray, the saving of considerable material cost can realize.Make the minimizing that tower tray causes its weight by lighter weight standard material, also made things convenient for workshop manufacturing and field erected personnel's practical operation.
Characterize numerous novel characteristics of the present invention and in additional claim, pointed out especially, and constituted the part of present disclosure.In order to understand the application better, its service advantages and constituted the figure that encloses and described content from its use, the special benefit that obtains quoting have wherein been concluded the application's embodiment preferred.
Description of drawings
In the drawings:
Fig. 1 is the front perspective view of the broken section on known wet scrubbing absorption tower;
Fig. 2 is the front perspective view of the porous tower tray that uses in the wet scrubbing shown in Figure 1 absorption tower;
Fig. 3 is the schematic perspective view according to wet scrubber tray redesign, that the workshop makes of girth member in the middle of of the present invention that has that the workshop installs;
Fig. 4 is a kind of known schematic perspective view with field erected porous wet scrubber tray according to girth member in the middle of of the present invention;
Fig. 4 A is the schematic perspective view of the field erected middle girth member of the type of describing in Fig. 4 according to the present invention;
Fig. 5 is the plane according to the embodiment of the plant-manufactured wet scrubber tray with middle girth member of installing in the workshop of the present invention;
Fig. 6 is the profile of Fig. 5 on the arrow 6-6 direction in Fig. 5;
Fig. 7 is the profile of Fig. 5 on the arrow 7-7 direction in Fig. 5;
Fig. 8 limits vertical view dull and stereotyped and the chloroprene rubber cover among Fig. 5;
Fig. 9 is a plane of making another embodiment of wet scrubber tray according to the factory of the middle girth member of the application's employing workshop installation;
Figure 10 is the profile of Fig. 9 on the arrow 10-10 direction in Fig. 9;
Figure 11 is the profile of Fig. 9 on the arrow 11-11 direction in Fig. 9;
Figure 12 is the schematic diagram of typical construction that is used for protecting the tilt flat plate angle of Figure 11 bottom tray flat board among Figure 11;
Figure 13 is according to a kind of schematic perspective view of reinforcing another embodiment of wet scrubber tray of the present invention;
Figure 14 is the profile of Figure 13 on the arrow 14-14 direction in Figure 13;
Figure 15 is according to a kind of schematic perspective view of reinforcing another embodiment of wet scrubber tray of the present invention;
Figure 16 is the profile of Figure 15 on the arrow 16-16 direction in Figure 15;
Figure 17 is according to a kind of schematic perspective view of reinforcing another embodiment of wet scrubber tray of the present invention;
Figure 18 is the profile of Figure 17 on the arrow 18-18 direction in Figure 17;
Figure 19 is the profile of Figure 17 on the arrow 19-19 direction in Figure 17;
Figure 20 is according to a kind of plane of reinforcing another embodiment of wet scrubber tray of the present invention;
Figure 21 is the profile of Figure 20 on the arrow 21-21 direction in Figure 20;
Figure 22 is the profile of Figure 20 on the arrow 22-22 direction in Figure 20;
Figure 23 is the profile of Figure 20 on the arrow 23-23 direction in Figure 20;
Figure 24 is the profile of Figure 20 on the arrow 24-24 direction in Figure 20;
Figure 25 is the side view of Figure 20 part on the arrow 25-25 direction in Figure 20;
Figure 26 is according to a kind of plane of reinforcing other another embodiment of wet scrubber tray of the present invention;
Figure 27 is the profile of Figure 26 on the arrow 27-27 direction in Figure 26;
Figure 28 is the profile of Figure 26 on the arrow 28-28 direction in Figure 26;
Figure 29 is the profile of Figure 26 on the arrow 29-29 direction in Figure 26; With
Figure 30 is the amplification profile of circle part among Figure 28.
The specific embodiment
The inherent circular frequency of the single-degree-of-freedom of free part can usually be represented by following relation:
Wherein: ω
n=circular frequency
K=intensity
The m=quality
If observed tower tray breaks by vibration induced, the amplitude of oscillating component causes stress to surpass standing the limit, and since fatigue caused breaking.A kind of method of the amplitude of any part of the given frequency vibration of reduction is the intrinsic frequency that increases this part.According to aforesaid relation, the intensity-mass ratio that increases part will increase intrinsic frequency.Thereby, if driving force, is reinforced the possibility that tower tray will reduce their vibrations still in identical frequency, thus the bending stress that reduces the amplitude of vibration and cause standing.The present invention thereby the intensity that provides several different methods to increase tower tray increase intrinsic frequency and reduce stress.
Relate generally to accompanying drawing, the same numeral of wherein quoting has marked in a plurality of figure similar element on the identical or function, and especially for Fig. 3, the schematic perspective view of wet scrubber tray is made in its workshop with middle girth member of installing according to workshop of the present invention that has demonstrated a kind of redesign, always is denoted as 50.
As shown in Figure 3, the tower tray 50 that make in each new workshop has the edge strengthening part 52 of equal height, rather than the edge strengthening part of the differing heights in the already present tray design, girth members 54 (in the present embodiment, can use 2,3 or more) and porous bottom or base platform 56 in the middle of a plurality of (major part of perforation 36 has been omitted so that scheme concisely).Porous flat plate 56 has roughly symmetrically arranged big relatively opening or bores a hole 36, the open area of running through with structure; Advantageously can or bore a hole by a large amount of holes and 36 be provided with in this open area, and it can be the diameter of 1-3/8 inch.Perforation 36 forms that can be arranged to interlock or straight line.According to an aspect of the present invention, perforation 36 also is relocated, or the edge of " disengagings " porous flat plate 56, so that perforation removes from the border of tower tray reducing the influence to boundary conditions, and thereby reduces the trend of breaking and beginning.Referring to accompanying drawing 5.Middle girth member 54 is the L-type preferably, has a minor face S and a long limit L; This cross section give girth member 54 and will install they tower tray 50 both reinforcing is provided.Place facing to tower tray bottom 56 on the long limit 54 of girth member when mounted.In 56 not welding of middle girth member 54 and tower tray bottom.Middle girth member 54 can be the height identical with edge strengthening part 52, or they can have different height on demand.Middle girth member 54 is divided into little lattice with tower tray 50, and girth member 54 has been stablized each edge strengthening part 52 in the middle of two on 2 o'clock.
Tower tray 50 is shelved on the supporting member 70 of suitable construction, and its arrangement and maintenance tower tray 50 are on the position of a basic horizontal.Supporting member 70 is connected on the wall of the tower absorber 14 of spraying, and tower tray 50 passes the tower absorber 14 of spraying as a little or big parts lateral extension, constitutes a perforated baffle with respect to updraft that passes the tower absorber 14 of spraying and downward liquid stream.End at each tower tray 50, different with the existing operation that preferentially tower tray is welded to support at the scene, the elastic insert 60 that a fixed flat planar 58 and adopt the material of rubber for example or more excellent chloroprene rubber to make is used to fix by securing member 62 adjacent end portion of two tower tray 50.More advantageously, securing member 62 comprises a screw rod and a relevant packing ring and nut assembly that is welded on the supporting member.As described later, be provided with a plurality of apertures in the fixed flat planar 58 and have notch with setting fastening elements on the elastic insert 60.Elastic insert 60 can have multi-form; It can comprise an independent liner of the adjacent end portion of the tower tray 50 that crossed two adjacency, maybe can comprise two the U type liners or the lining that extend around the adjacent end portion of the tower tray 50 of two adjacency.The groove welding 59 of tower tray-tower tray, advantageously 3, be set between the joining edge girth member 52 of adjacent trays 50 and the higher limit of the joining edge girth member 52 of adjacent trays 50, intensity is provided for adjacent trays 50.
As shown in Fig. 5-7, in the middle of installing in the workshop under the situation of girth member 54, the base platform 56 that middle girth member 54 crosses tower tray 50 strides across the distance between the edge strengthening part 52.The end of middle girth member 54 is soldered to edge strengthening part 52 at 68 places by the workshop.The base of girth member 54 has a plurality of straight finger pieces or protuberance 64 in the middle of each, and it is spaced apart corresponding to the groove 65 on the bottom 56 of tower tray 50.Protuberance 64 extends through groove 65 and by being arranged on the groove of the correspondence in the bar 66 under tower tray 50 bottoms 56.In a preferred embodiment, bar 66 is 1 inch wide bonding jumper, also has groove therein; The protuberance 64 of middle girth member 54 is charged into the groove 65 in tower tray 50 bottoms 56 and is entered corresponding groove 65 in the bar 66.Protuberance 64 is soldered to bar 66 subsequently.Bar 66 and porous base platform 56 do not have welding.
Shown in Fig. 4 and 4A, in the middle of installing at the scene under the situation of girth member 54, middle girth member 54 also is that the base platform 56 of crossing tower tray 50 strides across the distance between the edge strengthening part 52.Yet the means that straight finger piece or protuberance 64 are welded to bar 66 under tower tray 50 can not be used, because can not obtain to pass to the weld pass of the downside of tower tray 50.In this case, in the middle of each is field erected the long limit edge setting in the bottom of girth member 54 longer, flex finger 67.Finger piece 67 is preferably spent greater than 90 with respect to the plane angulation of the long limit L of middle girth member 54.Distribution according to perforation 36 in base platform 56 is provided with flex finger 67 along bottom margin, and the size of each flex finger 67 is can easily be perforated 36 admittances and contact adjacent frenulum to support tower tray in installation process for them.By adopting flex finger 67 alignd with corresponding perforation 36 middle girth member 54 is placed on the bottom 56 of tower tray 50, can finishes the scene installation of any centre girth member 54.Girth member 54 is subsequently to 56 turnovers of the bottom of tower tray 50, and flex finger 67 engages with their corresponding perforation 36.Then, girth member 54 turnovers are got back to vertically, thereby engaged crooked finger 67, below the bottom 56 of tower tray 50, hook them, thereby increase the intensity of tower tray 50 by perforation 36.Flex finger 67 by the perforation 36 that exists prevents that the bottom 56 of tower tray 50 from deflecting down, and the smooth bottom margin of middle girth member has prevented that the bottom 56 of tower tray 50 from upward deflecting.
Carry out the scene welding between the end with edge strengthening part 52 inboards and edge projection 55 that exists and middle girth member 54 subsequently; Between middle girth member 54 and tower tray 50, there is not other fusion welding.Replacedly, if edge strengthening part 52 has used the feature of punching press, for example construct a spring tongue piece on edge strengthening part 52, these on-the-spot welding can be exempted.In installation, because being tilted back vertically, middle girth member 54 make it by 36 joints of boring a hole with engage angled finger piece 67, the end of middle girth member 54 can be passed spring tongue piece subsequently, and it subsequently can be at correct position girth member 54 in the middle of returning is lived and be fixing in place.Field erected middle girth member 54 overcomes helping because the distortion that disturbance and impact cause is out of shape and stabilised edge girth member 52.In addition, this main benefit on the one hand of the present invention is that these field erected girth members 54 can be finished installation in the quite short time, so that the client needn't produce unnecessary outage in order to assemble tower tray 50.
In addition, the most of tower trays 50 that are provided with in wet scrubbing absorption tower 14 have a rectangular shape that the center girth member is set between long limit.Thereby those skilled in the art will correctly recognize, though term " centre " uses in the existing record of being everlasting, additional reinforcement with expression the application is typically to be arranged between the end of already present center girth member and tower tray 50, but also any additional girth member can be arranged at any position, even be positioned at or close center along tower tray 50.Referring to Fig. 4.In some were installed, girth member was not set at tower tray 50 centers, and changed into and be positioned at some other position.Further, though the symmetric position of these girth members may be to see it is preferred from the angle of making in tower tray 50, but also can adopt along tower tray and asymmetric girth member is set so that the interval of multiple size to be provided, with further reduction, may cause the vibration behavior do not expected, girth member is placed on the possibility in vibration nodal point zone along tower tray.
Refer again to Fig. 7, Fig. 7 has shown and uses fixed flat planar 58 and elastic insert or lining 60 and securing member 62 to be fixed to brace summer or member 70 with the neighboring edge with tower tray 50.Here, elastic insert 60 is a kind of U-shapeds that are squeezed into, best 3/16 inch thick, have 50 Shao Shi A type durometer hardnesses.According to size and the pre-loading amount of needs and the consideration economically of damping, the scope of hardness can be approximately between the 40-60 Shao Shi A type metering hardness.Armaflex
520 glue (Armaflex LLC ofMebane, NC provides) or coordinate are used to before the tower tray shipment resilient bushing 60 is fixed on tower tray 50 edges.Fig. 8 shows the fixed flat planar 58 and a chloroprene rubber lining 60 of assembling; In two parts, all provide groove and/or aperture to assemble, and cut out groove on the lining 60 in advance to allow draining to allow securing member 62 to extend through the there.
Fig. 9,10,11 and 12 have shown that support at tower tray 50 has the end of adjacent trays 50 on the position of different structure can be by another embodiment that how limits.In this embodiment, brace summer 72 is the inverted T font, is welded on vertical dull and stereotyped 74 on the horizontal plate 76 by one and forms.The diameter that being extended of brace summer 72 itself passed wet scrubber 10 or the truss member of the string of a musical instrument support.The end of adjacent trays 50 is placed on the horizontal plate 76.The end of adjacent trays 50 also is provided with chloroprene rubber lining 60, with aforementioned equally bonding.The flap angle 78 of Len req, and it can be (if being close in the curved envelope of wet scrubber 10) straight line or curve, the end that is used to keep tower tray 50 subsequently in place.Figure 12 has shown a kind of typical construction at flap angle 78 and has been used to guarantee that flap angle 78 is connected to the position of the on-the-spot pad 82 of brace summer 72, comprises the installation at the outer bend position that is close in tower absorber 10 housings of spraying.
Figure 13-19 has shown that intensity mass ratio by increase is provided is to increase the additive method of tower tray intrinsic frequency.In these aspects some can be used to influence the performance of washer.Tower tray 50 mass ratio of gaining in strength relates in tower tray 50 special characteristic that is shaped.In some figure of these figure, for simplicity's sake, perforation 36 has been omitted; Similarly, for clarity sake, have only a middle girth member 54 to be shown.The bottom 56 that these features are included in tower tray 50 is provided with one or more ribs 90; These ribs can be stamped, and the surface of the bottom 56 of tower tray 50 is gone in bead rolling or bending.For required intensity is provided, ribs can be arranged on the tower tray 50 with any direction, and highly can be base platform 56 thickness 1/2 to twice.In addition, can use the ribs 90 of multiple shape, for example triangle or semicircle.Replacedly, or in addition additionally, by the perforation punching press or around perforation 36 form indentures burr can be arranged in the tower tray 50.
Figure 20-30 has still shown by the mass ratio of gaining in strength to increase the additive method of tower tray intrinsic frequency.In these aspects some can be used to influence the performance of washer.The intensity mass ratio that tower tray 50 increases relates to the special characteristic that is shaped in tower tray 50.These features are included in one or more big domes or projection 100 are set in the bottom 56 of tower tray 50; These domes 100 can be stamped or bend in the bottom 56 of tower tray 50.In one embodiment, each dome 100 can be about 15 " diameter.In Figure 20-25, can on the tower tray by greatly in each interval that its middle the girth member 54 in centre forms, dome 100 being set.Even dome 100 can be used as the feature on the bottom 56 that extends in tower tray 50 and provides, they are provided as the feature under the bottom 56 that extends in tower tray 50 also is possible, and in these cases, these parts also can be used as big depression 100 and mention.Replacedly, in Figure 26-30, the littler dome of some or projection 110 can be set up in the bottom 56 of tower tray 50.Can be on tower tray 50 form by middle girth member 54 each at interval in, interval as required is provided with a plurality of little domes or projection 110.In one embodiment, each dome 110 can be about 3 " diameter.It also is possible that these domes are provided as the parts under the bottom 56 that extends in tower tray 50, and in this case, these parts also can be used as dolly dimple 110 and mention.The intensity that increases by these dome portion can allow thickness 11 standards to be reduced to 14 standards, thereby saves about 37% material.
Although original idea of the present invention may be the installation that is specially adapted to new wet scrubber, it is emphasized that the application can be used to relate to refitting, repairs or improve in the engineering of existing wet scrubber.In some embodiments of the present invention, some the time special characteristic of the present invention be used to improved purposes, do not need to have other features of corresponding uses.Correspondingly, although specific implementations of the present invention has been shown particularly and has been put down in writing so that show purposes of the present invention and principle, will be understood that the present invention is not limited in wherein, and the present invention can not violate enforcement in different ways under those principle ground situations.Improvement that all are such and embodiment fully fall among the scope of following claim.
Claims (20)
1. wet scrubber tray that is used for gas-liquid conversed contact device, has the wall that has formed the vertical housing that contains air flow inlet, and has the device that is used for upwards carrying gas by it, comprise: porous flat plate, be provided with roughly symmetry big relatively opening at interval, to constitute a open area by it; Contour edge strengthening part extends from first opposed edges of porous flat plate, and is approximately perpendicular to its orientation; One or more middle girth members links to each other between the edge strengthening part and with edge strengthening part and flat board; And, being arranged on the feature on the porous flat plate, described girth member and feature are used to increase the intensity mass ratio of tower tray, and it has increased the intrinsic frequency of tower tray, causes the sensitiveness of breaking for vibration so that reduce tower tray.
2. according to the wet scrubber tray of claim 1, it is characterized in that described feature is included at least one or a plurality of rib in the porous flat plate.
3. according to the wet scrubber tray of claim 1, it is characterized in that described feature is included in the burr around perforation in the porous flat plate.
4. according to the wet scrubber tray of claim 1, it is characterized in that described feature is included at least one or a plurality of dome or the depression in the porous flat plate.
5. according to the wet scrubber tray of claim 1, it is characterized in that, described tower tray comprises: second group opposite edges, in case tower tray is loaded in the gas-liquid contact apparatus, each edge in second group opposite edges has the elastomeric material of insertion, described elastomeric material with contact gas-liquid contact apparatus in supporting member contact, elastomeric material provides additional damping reducing tower tray to the reaction of vibration and reduce stress in the tower tray, and tower tray is any relatively by being displaced sideways of causing of supporting member with restriction keeps apart.
6. girth member that is used for being increased in the intrinsic frequency of the porous flat plate tower tray that wet scrubber uses, comprise: the spaced projections at the edge on L shaped part and a plurality of long limits along L shaped part, the groove that protuberance is fit to pass interval on the porous flat plate tower tray is received, when being positioned at bar under the tower tray and being fixed on the end of protuberance, allow girth member to be fixed on the tower tray with box lunch.
7. girth member that is used for being increased in the intrinsic frequency of the porous flat plate tower tray that wet scrubber uses, comprise: the flex finger at the edge on L shaped part and a plurality of long limits along L shaped part, the perforation that finger piece is fit to pass corresponding interval on the porous flat plate tower tray is received, when joining on the tower tray by perforation, allow girth member to be fixed on the tower tray with convenient flex finger.
8. reverse gas-liquid contact apparatus, comprise the wall that defines the vertical housing that contains air flow inlet, and have and be used for upwards carrying gas to pass the device of the tower tray of one or more height of level layouts of forming by the porous flat plate that crosses the housing extension, each of one or more porous flat plates is perforated and has big relatively opening with basic symmetry, constituting by each the open area in one or more flat boards, the adjacent end portion of porous flat plate is fixed on the supporting member that crosses vertical housing extension by fixed flat planar and the elastomeric material that inserts therein.
9. device according to Claim 8, it is characterized in that, each column plate has edge strengthening part and a plurality of middle girth member that is connected between the edge strengthening part, and the edge strengthening part of one of them tower tray on top edge be soldered to the edge strengthening part of adjacent trays.
10. according to the device of claim 9, it is characterized in that, middle girth member has protuberance at its lower limb, protuberance extends through at groove corresponding on the porous flat plate and the groove in the bar of arranging under bottom tower tray, the protuberance of middle girth member is soldered on the bar, and the end of middle girth member is soldered to the edge strengthening part so that middle girth member is fixed to tower tray.
11. device according to claim 9, it is characterized in that, middle girth member is provided with flex finger on its lower limb, flex finger extends through the respective openings on porous flat plate, and bottom tower tray, engage, the end of middle girth member engages so that middle girth member is fixed to tower tray with the edge strengthening part.
12. the device according to claim 11 is characterized in that, the end of middle girth member only is welded on the edge strengthening part.
13. the device according to claim 11 is characterized in that, form in the end of middle girth member and the edge strengthening part spring tongue piece engage.
14. device according to Claim 8 is characterized in that, comprises securing member, is used for fixed flat planar and the elastomeric material that is inserted into are fixed to supporting member.
15. device according to Claim 8 is characterized in that, comprises the flap angle, is used for fixed flat planar and the elastomeric material that is inserted into are fixed to supporting member.
16. device according to Claim 8 is characterized in that, the elastomeric material that is inserted into comprises chloroprene rubber.
17. device according to Claim 8, it is characterized in that, be included in the porous flat plate, offer the feature of tower tray with the intensity mass ratio that increases, the intensity mass ratio of increase has increased the intrinsic frequency of tower tray, vibration is caused the susceptibility that breaks so that reduce tower tray.
18. the device according to claim 17 is characterized in that, described feature is included at least one or a plurality of rib in the porous flat plate.
19. the device according to claim 17 is characterized in that, described feature is included in the burr around perforation in the porous flat plate.
20. the device according to claim 17 is characterized in that, described feature is included at least one or a plurality of dome or the depression in the porous flat plate.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US6190008P | 2008-06-16 | 2008-06-16 | |
| US61/061,900 | 2008-06-16 | ||
| US12/484,187 | 2009-06-13 | ||
| US12/484,187 US8413967B2 (en) | 2008-06-16 | 2009-06-13 | Wet scrubber tray |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101618291A true CN101618291A (en) | 2010-01-06 |
| CN101618291B CN101618291B (en) | 2014-08-27 |
Family
ID=41511805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910163998.6A Expired - Fee Related CN101618291B (en) | 2008-06-16 | 2009-06-16 | Wet scrubber tray |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101618291B (en) |
| ZA (1) | ZA200904174B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI507110B (en) * | 2013-12-17 | 2015-11-01 | Inventec Corp | Structure enhancement method for bearing plate |
| CN113274850A (en) * | 2021-05-13 | 2021-08-20 | 河南科技大学 | Organic waste gas washing and absorbing device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2916272A (en) * | 1957-08-16 | 1959-12-08 | Edw G Ragatz Co | Column tray-structure |
| NL142078B (en) * | 1964-08-18 | 1974-05-15 | Shell Int Research | DISH FOR CONTACTING LIQUIDS AND GASES. |
| GB1350909A (en) * | 1970-06-15 | 1974-04-24 | Swemco Ltd | Impingement baffle plate assembly |
-
2009
- 2009-06-15 ZA ZA200904174A patent/ZA200904174B/en unknown
- 2009-06-16 CN CN200910163998.6A patent/CN101618291B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI507110B (en) * | 2013-12-17 | 2015-11-01 | Inventec Corp | Structure enhancement method for bearing plate |
| CN113274850A (en) * | 2021-05-13 | 2021-08-20 | 河南科技大学 | Organic waste gas washing and absorbing device |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA200904174B (en) | 2010-04-28 |
| CN101618291B (en) | 2014-08-27 |
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