CN109745945A - New beam type gas jet packing support - Google Patents
New beam type gas jet packing support Download PDFInfo
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- CN109745945A CN109745945A CN201910201801.7A CN201910201801A CN109745945A CN 109745945 A CN109745945 A CN 109745945A CN 201910201801 A CN201910201801 A CN 201910201801A CN 109745945 A CN109745945 A CN 109745945A
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- 238000012856 packing Methods 0.000 title claims abstract description 49
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 238000005452 bending Methods 0.000 claims description 17
- 238000005507 spraying Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000012546 transfer Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 2
- 238000007664 blowing Methods 0.000 description 12
- 239000000945 filler Substances 0.000 description 8
- 230000009471 action Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 241000282836 Camelus dromedarius Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000012966 insertion method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
本发明涉及一种新型梁型气体喷射式填料支承，它是通过改变现有驼峰支承板的结构和连接方式，一方面可以大幅度的提高支承结构的强度和刚度，特别是对于大塔径、高填料层的散堆填料塔，可有效的降低主梁高度，进而可以节约材料，节省空间，在一定程度上降低塔体高度。另一方面此新型梁型气体喷射式填料支承去掉了驼峰板与驼峰板间的连接螺栓，而是采用插接结构，加工、安装简单方便的同时可节省大量的螺栓，降低了生产成本；再一方面此新型梁型气体喷射式填料支承可使边圈与塔壁之间的液体能顺利流出，去掉了液体在驼峰支承板间的流动阻碍，利于液体的横向流动，可使底板液体分布的更均匀，进而可提高塔的传质效率。
The invention relates to a novel beam-type gas jet packing support, which can greatly improve the strength and rigidity of the support structure by changing the structure and connection method of the existing hump support plate, especially for large tower diameters and high towers. The random packing tower with packing layer can effectively reduce the height of the main beam, thereby saving materials, saving space, and reducing the height of the tower body to a certain extent. On the other hand, this new type of beam-type gas jet packing support removes the connecting bolts between the hump plate and the hump plate, but adopts a plug-in structure, which is simple and convenient to process and install, and can save a lot of bolts and reduce production costs. On the one hand, the new beam-type gas jet packing support can make the liquid between the edge ring and the tower wall flow out smoothly, remove the flow obstruction of the liquid between the hump support plates, facilitate the lateral flow of the liquid, and make the liquid distribution in the bottom plate better. more uniform, which in turn can improve the mass transfer efficiency of the column.
Description
Technical field
The invention belongs to chemical field, the tower internals being related in chemical filler tower is especially a kind of to be applied to large-scale scattered heap
The novel beam type gas blowing type packing support plate of packed tower.
Background technique
In petrochemical process production process, packed tower is a kind of common chemical unit equipment, it is in tower
Filler as contact member between gas-liquid two-phase mass transfer apparatus.Packed tower is with production capacity is big, separative efficiency is high, pressure drop
Small, the advantages that liquid holdup is small, operating flexibility is big.
In recent years, since filling-material structure constantly improves, had developed a series of new efficiently, the structured packing of high load capacity
And random packing, it had not only improved the handling capacity of tower and separative efficiency but also had maintained the feature that pressure drop is small and performance is stable, filled out
Material tower has been widely popularized in large-scale gas-liquid operation.The main internals of packed tower be high efficiency packing and packing support plate structure,
It is big for tower diameter, filler is high, the packed tower of large bulk density, because packing layer is heavier, liquid holdup is larger, to the load of packing support plate
Act on it is larger, therefore to the structure of packing support plate design have strict requirements.Therefore the design about filler supporting device, on the one hand
It is required that it has enough strength and stiffness to guarantee stationarity, safety and the high efficiency of packed tower in the actual operation process；
On the other hand it requires it that can provide sufficiently large free cross-section, minimizes the flow resistance of gas-liquid two-phase, as far as possible guarantee gas
Liquid is evenly distributed, while requiring structure simple, and installation will facilitate.At present for random packing its using beam type gas spray
The formula packing support plate of penetrating is also known as hump bearing, structure be it is single combined, be the supporting arrangement of best random packing at present, answer
With extensive.
The bearing of existing beam type gas blowing type packing support plate, that is, hump, such as patent CN204380690U, hump plate
There is the connecting plate rolled over upwards in the left and right sides, is provided with bolt hole above for the connection between plate and plate, this connecting plate pair
It is unobvious to support booster action, is largely bolted and not only increases difficulty to installation but also improve production cost.And this connects
On the one hand the presence of fishplate bar has inhibition to the flowing of bottom liquid on hump plate, be unfavorable for the redistribution of liquid；Another party
Face, this connecting plate are easy to make the accumulation of the particulate matter in liquid to be attached to above.For thering is the hump of outer ring to support, from filling out
The bed of material can have accumulation along the liquid that tower wall is got off between outer ring and tower body inner wall, be not easy to flow out, it is possible to occur liquid storage or
Grain packing phenomenon.
Summary of the invention
The purpose of the present invention is to provide a kind of novel beam type gas blowing type packing support plates, it is by changing existing camel
The structure and connection type of peak support plate, on the one hand can be greatly improved the strength and stiffness of supporting structure, especially pair
In big tower diameter, the random packing tower of high accumulation, girder height can be effectively reduced, and then material can be saved, to a certain degree
Upper reduction tower body height.On the other hand this novel beam type gas blowing type packing support plate eliminates the company between hump plate and hump plate
Connecting bolt, but use the mounting means of grafting, install simple and convenient and a large amount of bolt can be saved, it reduces and is produced into
This；This novel mobile obstacle for eliminating liquid on support plate of another further aspect, makes liquid that can be conducive to bottom plate with lateral flow
The uniform redistribution of liquid, and then can further improve mass-transfer efficiency.
The purpose of the present invention is achieved by the following measures:
A kind of new gas injecting type packing support plate is assembled by multiple bearing units by inserting mode.Described
Bearing unit includes hump plate, support plate, connecting plate, and bending forms support plate, branch in the horizontal direction outward for the bottom end of hump plate
Fagging downward bending forms connecting plate, produces slot on connecting plate as needed, passes through between two adjacent bearing units
The connecting plate of one of bearing unit is inserted into the slot of another bearing unit and realizes inserting connection.Moreover, described
Bearing unit has one or two connecting plate；By the upward bending of lower edge of the connecting plate of the bearing unit with a connecting plate
Form a slot；By tool, there are two the upward bendings of the lower edge of one of connecting plate of the bearing unit of connecting plate to form a slot
Or slot is not provided on two connecting plates.Moreover, the bottom uniform intervals in slot are formed with multiple delivery holes.Moreover,
A flange is formed along outside bending on slot.Moreover, producing two resigning mouthfuls at the both ends of connecting plate, respectively pacify at two resigning mouthfuls
A connection piece is filled, one end and the tower body inner wall of connector are fixedly mounted with, the other end and connecting plate are fixedly mounted with by bolt, are made on connecting plate
There is bolt connecting hole.Moreover, support board ends ride on support circle, the bracing ring is coaxially packed in tower body inner wall.And
And further include a girder, both ends and the tower body inner wall of girder are fixedly mounted with；Support unit one end and tower body inner wall are connected by connector
It connects, the other end is connect with girder by connector.Moreover, according to wire feeding, the type supported on hump plate and support plate
Number open up various sizes of hole.Moreover, inside increases gusset when hump span of slab is greater than 1 meter.
Bearing for not girder, support plate ride on support circle, connection board ends respectively be welded on tower body the
One connecting plate is bolted.For there is the bearing of girder, hump board bottom plate one end rides over the upper one end of support circle and rides over girder
On, hump plate itself beam one end is bolted with the first connecting plate being welded on tower body, the other end and is welded on girder
Second connecting plate is bolted, and makes connecting plate and tower body or forms the grid framework beam for being similar to fishbone type with girder
Structure.
Its structure of bearing unit of the present invention is itself girder construction, and two sides itself beam uses downward bending mode, is led to
Calculation of finite element strength is crossed, old structure is compared, its strength and stiffness is all improved under identical size.
Bearing unit structure of the present invention, the connection board ends in bearing unit are provided with bolt hole.Centre is leaned on
The connecting plate of nearly one piece of intermediate bearing unit is plate of the support plate downward bending at certain altitude, the bearing of two sides the extreme side
Unit connecting plate only one, this connecting plate be certain altitude straight flange then up bending formed a slot, radius bend
Preferably plate thickness adds 1mm, then rolls over the booster action that a flange is conducive to structure at the edge of slot.Other bearing units according to
Actual installation sequence use a side connecting plate for the straight flange of certain altitude, the other side of the connecting plate be certain altitude straight flange then to
Upper bending forms a slot, and radius bend is preferably that plate thickness adds 1mm, to can smoothly enter into the adjacent direct-connected fishplate bar of bearing unit
It slot and is stuck in slot well, then rolls over the booster action that a flange is conducive to structure at the edge of slot.With slot
The connecting plate of bearing unit is higher without the connecting plate of slot than adjacent bearing unit, so that the nothing of adjacent bearing unit is inserted
The connecting plate of slot enters slot rear bearing sheet and is maintained at the same horizontal plane, and the upward bending with slot plus flange with it is adjacent
The coincidence size of direct-connected fishplate bar is at least 20mm, and bearing unit opens certain amount, certain size with the connecting plate bottom of slot
Aperture can be such that the liquid in slot smoothly flows down in the case where not influencing structural strength.The connecting plate of general bearing unit
Height is preferably selected as 65mm.The connecting plate of bearing unit can suitably be increased according to practical load-bearing conditions.
The hump plate and support plate of bearing unit of the present invention can open up difference according to the wire feeding that is supported, model
The slotted hole or plum blossom hole of size, different spacing, aperture can be used equilateral triangle arrangement, square arrangement can also be used, to protect
Demonstrate,prove percent opening.
The packing support plate of the present invention filler light for small tower diameter or comparison, the connecting plate of the bearing unit can
By slightly increase and two side opening connect with the first connector being welded on tower body by bolt guarantee bearing strength and
Rigidity, and then the use of girder can be saved.
The filler that packing support plate of the present invention is weighed for big tower diameter and especially, can pass through the connection on bearing unit
Plate one end is connected with the first connector on tower body, and the other end is connected with the second connector on girder, makes on bearing unit
Connecting plate and girder form the combination beam type structure for being similar to fishbone type, can effectively increase the intensity of bearing, reduce bearing
The deformation of structure, or main depth of beam is reduced, and then save space.
First connector one side elevation of the present invention and tower body weld, and upper surface connects with lap welding is supported, can be effective
Substitution supports circle gusset.
Second connector one side elevation of the present invention and girder vertical plate weld, and upper surface and girder upper plate weld,
Lower surface and girder lower plate are welded, and can have booster action to girder.
I-beam made of girder of the present invention can be bolted for back-to-back steel channel beam can also be directly spelling
The I-beam being welded into.
The advantages of the present invention:
1, structure and connection type that the present invention is supported by changing hump reduce hump and support upper liquid lateral flow
Obstruction, can effectively prevent particle in liquid from assembling in support plate in hump bearing, can also make flange and tower body it
Between liquid can smoothly flow out, make liquid distribution more evenly, and then improve mass-transfer efficiency.
2, the present invention makes hump support the connection side for not using between each bearing unit and being bolted, but using grafting
Formula can save a large amount of bolt, reduce production cost while making to install simple and convenient；By hump support in bearing unit
Support plate downward bending and be connected with tower body or with girder by connecting plate, the biggish intensity for improving packing support plate and just
Degree solves the problems, such as that intensity is insufficient in operation operating condition and deformation is excessive for big tower diameter, its packing support plate of high random packing, one
Determine to have saved material in degree, reduce depth of beam, saves space.
Detailed description of the invention
Fig. 1 is the three-dimensional structure diagram of novel beam type gas blowing type packing support plate unit；
Fig. 2 is the portion A schematic enlarged-scale view in Fig. 1；
Fig. 3 is novel beam type gas blowing type packing support plate without main beam structure figure；
Fig. 4 is that novel beam type gas blowing type packing support plate has main beam structure figure.
Specific embodiment
The invention will be further described with reference to the accompanying drawing and by specific embodiment, and following embodiment is descriptive
, it is not restrictive, this does not limit the scope of protection of the present invention.
A kind of novel beam type gas blowing type packing support plate unit, as shown in Figure 1, 2, including hump plate 1, support plate 2, company
Fishplate bar 3, bending forms support plate in the horizontal direction outward for the bottom of hump plate, and bending forms connecting plate to support plate still further below, even
Fishplate bar is vertical with support plate.As needed, the upward bending of the lower edge of connecting plate is formed into a slot 5.For the ease of in slot
Liquid outflow, is formed with multiple delivery holes 6 in the bottom uniform intervals of slot.In order to increase the intensity of slot, the upper edge of slot to
Bending is folded outward into a flange 7.Two resigning mouthfuls are produced at the both ends of connecting plate, the first connector 11 is installed at two resigning mouthfuls, the
One end of a connection piece is fixedly mounted with 8 inner wall of tower body, the other end and connecting plate are fixedly mounted with by bolt, and bolt company is formed on connecting plate
Connect hole 4.
In use, multiple bearing units are combined into an entirety by way of grafting.It is different according to the position used,
The specific structure of bearing unit can be divided into three classes:
The first kind, the bearing unit produce the connecting plate bent downward in the two sides of hump plate, but only side wherein
Connecting plate on produce slot.
Second class, which produces the connecting plate bent downward in the two sides of hump plate, but two side connecting plates are equal
Do not produce slot.
Third class, the bearing unit only produce the connecting plate bent downward in the side of hump plate, and in the side connecting plate
On produce slot.
Second class bearing unit is arranged in center, third class bearing unit is arranged in both ends, by multiple first kind branch
Bearing unit is arranged between the second class and third class.Specific insertion method is: it is adjacent that the connecting plate for not setting slot is inserted into its
In the slot of the connecting plate of unit, and so on.It is carried out when installation using from both sides to intermediate sequence, first the unit at both ends
It puts well.Wherein the height of connecting plate is generally 65mm.The radius bend of slot is preferably that plate thickness adds 1mm, can both make phase in this way
The connecting plate of adjacent unit can smoothly enter into slot can be such that it blocks well again.
The novel beam type gas blowing type packing support plate of no girder can be used in the filler light for small tower diameter or comparison, such as schemes
Shown in 3.Support board ends ride on support circle 9, and the top surface of the first connector and the bottom surface of support circle are welded, and first connects at this time
Fitting can be used as the stiffener plate for supporting circle, reduce the thickness for supporting circle.Substantially increase the strength and stiffness of packing support plate.
It needs to increase the tower diameter of girder for old supporting structure, the increase of girder can be reduced in this manner.
, the packing layer higher novel beam type gas blowing type that has girder larger for big tower diameter and filler bulk density is filled out
Material bearing, as shown in Figure 4.13 both ends of girder are taken on base 14, and girder both ends pass through third connecting plate 15 and tower body phase respectively
Even.Support plate one end of each bearing unit rides on support circle, and the other end rides on girder, passes through phase between unit and unit
Adjacent connecting plate is connected using inserting mode, and one end of connecting plate and the first connector 11 being welded on support circle and tower body are logical
It crosses bolt to be connected, the other end is connected with the second connector 12 being welded on girder by bolt, and bearing unit passes through with girder
Second connector forms an entirety, then bearing unit and girder made by the first connector and third connector but with tower body phase
Even, the beam frame structure for being similar to fishbone type is formed, the strength and stiffness of packing support plate can be greatly improved, effectively
Reduction girder height, save space.
Connecting plate can adjust in a certain range height according to actual bearer situation, can be according to institute in hump plate and support plate
The wire feeding of bearing, model open up the slotted hole or plum blossom hole of different sizes, different spacing, and equilateral triangle can be used in aperture
Arrangement, can also be used square arrangement, to guarantee percent opening.Inside can increase gusset 10 when hump span of slab is greater than 1 meter, reinforce
Gusset can onboard increase a certain size circular hole to save material and making its permeability well to be trapezoidal.
Novel beam type gas blowing type packing support plate proposed by the present invention, is described by examples of implementation, related
Technical staff obviously can not depart from the content of present invention, structure as described herein and equipment are modified in spirit and scope or
Appropriate changes and combinations, Lai Shixian the technology of the present invention.In particular, it should be pointed out that all similar replacements and change are to ability
It is it will be apparent that they are considered as being included in spirit of that invention, range and content for field technique personnel.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910201801.7A CN109745945A (en) | 2019-03-18 | 2019-03-18 | New beam type gas jet packing support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910201801.7A CN109745945A (en) | 2019-03-18 | 2019-03-18 | New beam type gas jet packing support |
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| Publication Number | Publication Date |
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| CN109745945A true CN109745945A (en) | 2019-05-14 |
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| CN201910201801.7A Pending CN109745945A (en) | 2019-03-18 | 2019-03-18 | New beam type gas jet packing support |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111701549A (en) * | 2020-07-03 | 2020-09-25 | 中冶焦耐(大连)工程技术有限公司 | A packing support device with liquid distribution function |
| CN114558542A (en) * | 2022-02-25 | 2022-05-31 | 北洋国家精馏技术工程发展有限公司 | Large-scale tower tray structure with high strength, high deflection and small disassembly and assembly convenience |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4171333A (en) * | 1977-05-16 | 1979-10-16 | Norton Company | Tower packing support |
| US20090092527A1 (en) * | 2006-06-19 | 2009-04-09 | Sgl Carbon Ag | Support grid for filling material packings and method for mounting the support grid |
| CN204380690U (en) * | 2014-12-02 | 2015-06-10 | 亿凯（上海）工程机械制造有限公司 | A kind of random packing bracing or strutting arrangement |
| CN205128013U (en) * | 2015-09-17 | 2016-04-06 | 嘉兴市第一医院 | But plug -in type vacuum test tube frame |
| CN208185159U (en) * | 2018-05-17 | 2018-12-04 | 中山市安悦金属制品有限公司 | A compartment connection component for assembling filing cabinets |
| CN208465199U (en) * | 2018-04-25 | 2019-02-05 | 湖北瑞邦石化装备科技有限公司 | A kind of flash column new tower plate |
| CN209810182U (en) * | 2019-03-18 | 2019-12-20 | 北洋国家精馏技术工程发展有限公司 | Novel beam type gas injection type filler support |
-
2019
- 2019-03-18 CN CN201910201801.7A patent/CN109745945A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4171333A (en) * | 1977-05-16 | 1979-10-16 | Norton Company | Tower packing support |
| US20090092527A1 (en) * | 2006-06-19 | 2009-04-09 | Sgl Carbon Ag | Support grid for filling material packings and method for mounting the support grid |
| CN204380690U (en) * | 2014-12-02 | 2015-06-10 | 亿凯（上海）工程机械制造有限公司 | A kind of random packing bracing or strutting arrangement |
| CN205128013U (en) * | 2015-09-17 | 2016-04-06 | 嘉兴市第一医院 | But plug -in type vacuum test tube frame |
| CN208465199U (en) * | 2018-04-25 | 2019-02-05 | 湖北瑞邦石化装备科技有限公司 | A kind of flash column new tower plate |
| CN208185159U (en) * | 2018-05-17 | 2018-12-04 | 中山市安悦金属制品有限公司 | A compartment connection component for assembling filing cabinets |
| CN209810182U (en) * | 2019-03-18 | 2019-12-20 | 北洋国家精馏技术工程发展有限公司 | Novel beam type gas injection type filler support |
Non-Patent Citations (1)
| Title |
|---|
| 王树楹: "《现代填料塔技术指南》", 31 August 1998, 中国石化出版社, pages: 184 - 185 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111701549A (en) * | 2020-07-03 | 2020-09-25 | 中冶焦耐(大连)工程技术有限公司 | A packing support device with liquid distribution function |
| CN111701549B (en) * | 2020-07-03 | 2025-07-22 | 中冶焦耐(大连)工程技术有限公司 | Packing support device with liquid distribution function |
| CN114558542A (en) * | 2022-02-25 | 2022-05-31 | 北洋国家精馏技术工程发展有限公司 | Large-scale tower tray structure with high strength, high deflection and small disassembly and assembly convenience |
| CN114558542B (en) * | 2022-02-25 | 2024-09-13 | 北洋国家精馏技术工程发展有限公司 | Large-scale tray structure with high strength, small deflection and convenient disassembly and assembly |
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Application publication date: 20190514 |