CN106799194A - Gas-liquid allotter - Google Patents
Gas-liquid allotter Download PDFInfo
- Publication number
- CN106799194A CN106799194A CN201510826935.XA CN201510826935A CN106799194A CN 106799194 A CN106799194 A CN 106799194A CN 201510826935 A CN201510826935 A CN 201510826935A CN 106799194 A CN106799194 A CN 106799194A
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- China
- Prior art keywords
- central tube
- gas
- liquid
- cover plate
- liquid allotter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/0278—Feeding reactive fluids
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The invention discloses a kind of gas-liquid allotter, including cover plate, central tube and stream breaker, central tube is vertically arranged, cover plate is horizontally placed on the top of central tube, central tube includes inlet portion and descending liquid portion, descending liquid portion is below inlet portion, along the central tube many rows of openings of axis directional spreding in descending liquid portion, pipe outlet centered on central tube lower end, stream breaker is horizontally placed on the lower section of central tube outlet, the central tube top is chamfer, and the space that beveling formed angular cut in central tube top is formed with cover plate is inlet portion, and disturbing flow device is additionally provided with inside central tube.Present invention is mainly used for the fixed bed hydrogenation reactor in petroleum refining and chemical industry.Liquid phase raw material can be uniformly distributed on the beds in fixed bed hydrogenation reactor using the present invention, be allowed to be fully contacted with catalyst, to reduce the temperature difference in beds cross section, so as to improve oil quality, reduce production cost.
Description
Technical field
The invention belongs to the field of hydrogenation in petroleum refining and chemical industry, it is related to a kind of gas-liquid allotter used by fixed bed hydrogenation reactor.
Background technology
Gas-liquid allotter is the important component of fixed bed hydrogenation reactor, the catalyst bed layer surface for liquid phase raw material to be uniformly sprayed onto lower section, to give full play to the effect of catalyst in whole bed, so as to ensure the quality and yield of product.Liquid phase obtains uneven with Gas distribution, and Global reaction Rate, product yield and catalyst deactivation rate etc. can be made to be affected, and causes the reduction of catalyst utilization rate, temperature distributing disproportionation is even, product quality declines in beds etc..Especially because hydrogenation reaction majority is strong exothermic process, the skewness of reaction raw materials oil can cause bed hot-spot and catalyst coking in beds.The maximization of current hydrogen addition technology reactor is very universal, and product develops to the direction for becoming more meticulous, and the raising of environmental protection requirement is more strict to oil quality requirement, therefore the importance of gas-liquid distribution is just more protruded.
Multiple gas-liquid allotters on tray deck, constitute gas-liquid partition tray according to certain rules.Each gas-liquid allotter is an allocation unit, and gas-liquid two-phase is uniformly distributed on beds commonly through gas-liquid allotter.
Existing gas-liquid allotter is by liquid phase into can be divided three classes in the way of gas-liquid allotter：Overflow type, suction type and the two mixed type.Overflow type gas-liquid allotter is mainly characterized by that pressure drop is small, and gas phase is substantially vertical with liquid phase flow direction, simple structure, manufacture difficulty is relatively low, be relatively applied to high viscosity medium, is generally used for distributing the occasion of high viscosity medium.Suction type gas-liquid allotter, this gas-liquid allotter is typically provided the parts such as bubble cap, central tube, air-flow produces swabbing action by slot in the annular space between bubble cap and central tube, and liquid punching is broken into drop and is carried along into central tube by gas, realizes gas-liquid mixed and distribution.
The content of the invention
It is an object of the invention to provide a kind of gas-liquid allotter, to reach the more uniform mixed effect of gas-liquid mixed compared with existing overflow type gas-liquid allotter.
To reach above-mentioned purpose, the present invention provides a kind of gas-liquid allotter, the gas-liquid allotter includes cover plate, central tube and stream breaker, and central tube is vertically arranged, and cover plate is horizontally placed on the top of central tube, central tube includes inlet portion and descending liquid portion, below inlet portion, along the central tube many rows of openings of axis directional spreding in descending liquid portion, pipe is exported centered on central tube lower end in descending liquid portion, stream breaker is horizontally placed on the lower section of central tube outlet, it is characterised in that：The central tube top is chamfer, and the space that beveling formed angular cut in central tube top is formed with cover plate is inlet portion, and disturbing flow device is additionally provided with inside central tube.
The present invention is further technically characterized in that：Plane and central tube axis angle where the formed angular cut of central tube top beveling are 30 °~60 °.
There is following beneficial effect using the present invention：When using, the multiple through holes being distributed on the axis direction different height section that liquid phase passes through central tube enter in central tube, the space (i.e. inlet portion) that gas phase is formed from central tube top angular cut and top blind flange enters in central tube, downdraught is formed in central tube, above-mentioned gas phase is produced to liquid phase includes the impact and shearing of the multiple directions of vertical direction, so as to reach more preferable mixed effect.Disturbing flow device is set in central tube so that liquid phase reduces the liquid stream and big drop of side wall formation along tube wall constricted flow, improves the mixed effect of liquid phase.Setting stream breaker can reallocate to the liquid phase raw material of center bottom of the tube outlet outflow, eliminate the larger phenomenon of central tube of trailer fluid flow.Therefore, the present invention can be more uniformly distributed gas-liquid.Additionally, the present invention also have the advantages that liquid phase spray area is big, pressure drop is small, operational stability is high, operating flexibility is big, using scope is wide, simple structure, easily manufactured, firm stable.
Present invention is mainly used for the fixed bed hydrogenation reactor in petroleum refining and chemical industry.Liquid phase raw material can be uniformly distributed on the beds in fixed bed hydrogenation reactor after being assembled into gas-liquid partition tray with tower tray, it is allowed to be fully contacted with catalyst, to reduce the temperature difference in beds cross section, so as to improve oil quality, production cost is reduced.
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.But the drawings and specific embodiments are not intended to limit the scope of protection of present invention.
Brief description of the drawings
Fig. 1 is the structural representation of gas-liquid allotter of the present invention, and the gas-liquid allotter is fixed on distribution plate.
Fig. 2 is the top view of gas-liquid allotter shown in Fig. 1.
Fig. 3 is the perforate schematic diagram in the descending liquid portion 4 opened up on central tube 1.
Fig. 4 is the schematic diagram of stream breaker 5.
In Fig. 1 to Fig. 4, same reference numerals represent identical technical characteristic.
Specific embodiment
Referring to Fig. 1, gas-liquid allotter of the invention includes cover plate 3, central tube 1 and stream breaker 5, central tube 1 is vertically arranged, cover plate 3 is horizontally placed on the top of central tube 1, central tube 1 includes inlet portion and descending liquid portion 4, descending liquid portion 4 is below inlet portion, many rows of openings 7 are distributed with along the axis direction of central tube 1 in descending liquid portion 4, pipe outlet centered on the lower end of central tube 1, stream breaker 5 is horizontally placed on the lower section of central tube outlet, the top of the central tube 1 is chamfer, the formed angular cut 8 of the top of central tube 1 beveling and the space that cover plate 3 is formed are inlet portion, disturbing flow device 2 is additionally provided with the inside of central tube 1.
The shape of the perforate 7 in the descending liquid portion 4 can be circular or Long Circle (as shown in Figure 3).The disturbing flow device 2 that the inside of central tube 1 is set is the fine wire with high flexibility, the visual corrosive environment of material of fine wire is from stainless steel and nickel-base alloy etc., during from stainless steel wire, the diameter of stainless steel wire is generally 0.1mm~0.8mm, the upper and lower side of disturbing flow device 2 is fixed with cover plate 1 and stream breaker 5 respectively, i.e. the upper end of disturbing flow device 2 is fixed with cover plate 1, and lower end and the stream breaker 5 of disturbing flow device 2 are fixed.
The central tube 1 is fixedly connected with distribution plate 6.
Referring to Fig. 1 and Fig. 2, preferred scheme of the invention is that the plane where the formed angular cut 8 of central tube top beveling and the axis angle of central tube 1 are 30 °~60 °.
The perforate 7 in the descending liquid portion 4 is (as shown in Figure 1) conveniently of circular shape, along axial arranged 2~4 rows of openings 7 of central tube 1 (being 2 rows shown in Fig. 1), per rows of openings along circumferentially 1~4 perforate 7 of central tube 1.Liquid phase accounting of the size, quantity and row of perforate 7 in the inlet amount and oil gas of reactor is combined to reach optimal gas-liquid mixed effect.
From the round slab construction (as shown in Figure 4) with perforate, when gas-liquid allotter works, the perforate that the fluid above stream breaker 5 can be partly from stream breaker is flowed down stream breaker 5, to ensure the gas-liquid flow in gas-liquid allotter lower central region.
Central tube 1 is generally welded to connect with distribution plate 6, will not be spilt from the junction with central tube 1 with the liquid phase ensured on distribution plate 6.
Operation principle of the invention is illustrated by taking the gas-liquid allotter shown in Fig. 1 as an example below.
Liquid phase in fluid forms certain thickness liquid layer on distribution plate 6, liquid phase is entered in central tube 1 by many rows of openings 7 that the descending liquid portion 4 on central tube 1 is axially distributed, gas phase enters in central tube 1 from the inlet portion at the top of central tube 1, downward air-flow is formed in central tube 1, above-mentioned gas phase produces the impact and shearing of multiple directions to liquid phase, so that the broken atomization of liquid phase, is sufficiently mixed with gas phase.Fluid is when by central tube 1, impact is produced to disturbing flow device 2, the vibrations of lasting upper frequency are produced under fluid impact with elastomeric disturbing flow device 2, so as to the effect to causing disturbance near the fluid of the inwall of central tube 1, so as to reduce the liquid stream and big drop that are formed along side wall, the mixed effect of liquid phase is improved.Fluid from the export department of central tube 1 by stream breaker 5, reallocate, and eliminates the larger phenomenon of central tube of trailer fluid flow by the liquid phase raw material to the outlet outflow of center bottom of the tube.Therefore, the present invention can be more uniformly distributed gas-liquid.
Claims (10)
1. a kind of gas-liquid allotter, the gas-liquid allotter includes cover plate, central tube and stream breaker, and central tube is erected
Straight to set, cover plate is horizontally placed on the top of central tube, and central tube includes inlet portion and descending liquid portion, descending liquid portion
Below inlet portion, along the central tube many rows of openings of axis directional spreding in descending liquid portion, centered on central tube lower end
Pipe is exported, and stream breaker is horizontally placed on the lower section of central tube outlet, it is characterised in that：The central tube top
Chamfer, the space that beveling formed angular cut in central tube top is formed with cover plate is inlet portion, in
Disturbing flow device is additionally provided with inside heart pipe.
2. a kind of gas-liquid allotter according to claim 1, it is characterised in that：The central tube top
Plane and central tube axis angle where the formed angular cut of beveling are 30 °~60 °.
3. a kind of gas-liquid allotter according to claim 1, it is characterised in that：In the descending liquid portion
Perforate, 2~4 rows are arranged along central tube axis direction.
4. a kind of gas-liquid allotter according to claim 1, it is characterised in that：In the descending liquid portion
Perforate, 2~4 rows are arranged along central tube axis direction, per rows of openings along central tube circumferentially 1~4.
5. a kind of gas-liquid allotter according to claim 1 or 3 or 4, it is characterised in that：The drop
Hole shape in liquid portion is circular or Long Circle.
6. a kind of gas-liquid allotter according to claim 5, it is characterised in that：In the descending liquid portion
Hole shape is circle.
7. a kind of gas-liquid allotter according to claim 1, it is characterised in that：The stream breaker is to open
Justify flat board in hole.
8. a kind of gas-liquid allotter according to claim 1, it is characterised in that：The disturbing flow device
Upper and lower side is fixed with cover plate and stream breaker respectively.
9. a kind of gas-liquid allotter according to claim 1 or 8, it is characterised in that：The flow-disturbing dress
The fine wire with high flexibility is set to, the material of fine wire is stainless steel or nickel-base alloy.
10. a kind of gas-liquid allotter according to claim 1 or 8, it is characterised in that：The flow-disturbing
Device is the stainless steel wire with high flexibility, a diameter of 0.1mm~0.8mm of stainless steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510826935.XA CN106799194A (en) | 2015-11-25 | 2015-11-25 | Gas-liquid allotter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510826935.XA CN106799194A (en) | 2015-11-25 | 2015-11-25 | Gas-liquid allotter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106799194A true CN106799194A (en) | 2017-06-06 |
Family
ID=58975786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510826935.XA Pending CN106799194A (en) | 2015-11-25 | 2015-11-25 | Gas-liquid allotter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106799194A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111992145A (en) * | 2020-08-24 | 2020-11-27 | 中国石油化工股份有限公司 | Gas-liquid distribution device |
| CN112915925A (en) * | 2021-03-10 | 2021-06-08 | 北京化工大学 | Venturi type gas-liquid distributor |
| CN114534657A (en) * | 2022-03-02 | 2022-05-27 | 重庆东庚工程技术有限公司 | Microchannel fast reactor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2834690Y (en) * | 2005-11-14 | 2006-11-08 | 中国石油化工集团公司 | Co-current gas-liquid distributor |
| CN201145505Y (en) * | 2007-12-25 | 2008-11-05 | 重庆天瑞化工设备股份有限公司 | High-efficiency self-destabilization heat exchange tube |
| CN102828855A (en) * | 2012-09-03 | 2012-12-19 | 许文心 | Improved device for reinforcing mixed gas turbulent flow, saving energy and reducing emission of fuel oil engine |
-
2015
- 2015-11-25 CN CN201510826935.XA patent/CN106799194A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2834690Y (en) * | 2005-11-14 | 2006-11-08 | 中国石油化工集团公司 | Co-current gas-liquid distributor |
| CN201145505Y (en) * | 2007-12-25 | 2008-11-05 | 重庆天瑞化工设备股份有限公司 | High-efficiency self-destabilization heat exchange tube |
| CN102828855A (en) * | 2012-09-03 | 2012-12-19 | 许文心 | Improved device for reinforcing mixed gas turbulent flow, saving energy and reducing emission of fuel oil engine |
Non-Patent Citations (1)
| Title |
|---|
| 蔡连波等: "溢流碎流性气液分配器的开发与研究", 《炼油技术与工程》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111992145A (en) * | 2020-08-24 | 2020-11-27 | 中国石油化工股份有限公司 | Gas-liquid distribution device |
| CN111992145B (en) * | 2020-08-24 | 2022-10-14 | 中国石油化工股份有限公司 | Gas-liquid distribution device |
| CN112915925A (en) * | 2021-03-10 | 2021-06-08 | 北京化工大学 | Venturi type gas-liquid distributor |
| CN112915925B (en) * | 2021-03-10 | 2022-11-15 | 北京化工大学 | Venturi type gas-liquid distributor |
| CN114534657A (en) * | 2022-03-02 | 2022-05-27 | 重庆东庚工程技术有限公司 | Microchannel fast reactor |
| CN114534657B (en) * | 2022-03-02 | 2023-08-08 | 重庆东庚工程技术有限公司 | Microchannel rapid reactor |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170606 |