CN205216798U - Gas -liquid distributor - Google Patents
Gas -liquid distributor Download PDFInfo
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- CN205216798U CN205216798U CN201520947948.8U CN201520947948U CN205216798U CN 205216798 U CN205216798 U CN 205216798U CN 201520947948 U CN201520947948 U CN 201520947948U CN 205216798 U CN205216798 U CN 205216798U
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- gas
- liquid
- central tube
- center tube
- liquid allotter
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- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The utility model discloses a gas -liquid distributor, including apron and center tube, the apron sets up in the top of center tube, and the center tube is including going into the oral area and fall liquid portion, and entry position in center tube upper portion falls liquid portion and is the center tube and exports at entry troops under one's command side, center tube lower extreme, and follow central axial direction of the pipe in the liquid portion of falling of center tube and set up the multirow trompil, the below of center tube export is provided with sprays mixing arrangement, sprays mixing arrangement and be the choke column structure, and the upper portion entry is back taper platform structure, and the lower part export is the frustum structure, middle for necking down throat connects, goes into the oral area and includes that the rectangle of opening along center tube upper portion circumferencial direction slots or long circular slot, and its relative center tube of orientation of slotting is the tangential. The utility model discloses fixed -bed hydrogenation reactor among mainly used petroleum processing and the the chemical industry. Use the utility model discloses on can distributing the catalyst bed in the fixed -bed hydrogenation reactor uniformly with gas -liquid looks raw materials, make it fully to contact with the catalyst to reduce the difference in temperature in the catalyst bed cross section, thereby improve oil quality, reduction in production cost.
Description
Technical field
The utility model belongs to the field of hydrogenation in petroleum refining and chemical industry, relates to a kind of gas-liquid allotter that fixed bed hydrogenation reactor is used.
Background technology
Gas-liquid allotter is the important component of fixed bed hydrogenation reactor, for liquid phase raw material being evenly sprayed onto the beds surface of below, to give full play to the effect of catalyst in whole bed, thus ensures quality and the yield of product.Liquid phase and Gas distribution obtain uneven, and Global reaction Rate, product yield and catalysqt deactivation speed etc. can be made to be affected, and cause catalyst utilization rate to reduce, degradation under even, the product quality of temperature distributing disproportionation in beds.Particularly because hydrogenation reaction majority is strong exothermic process, in beds, the skewness of reaction raw materials oil can cause bed hot-spot and catalyst coking.Current hydrogen addition technology reactor maximizes very general, and product is to the future development become more meticulous, and the raising of environmental protection requirement requires more strict to oil quality, therefore the importance of gas-liquid distribution is just more outstanding.
Multiple gas-liquid allotter is located on tray deck according to certain rules, composition gas-liquid partition tray.Each gas-liquid allotter is allocation units, and gas-liquid two-phase by gas-liquid allotter, is distributed on beds jointly equably.
The mode that existing gas-liquid allotter enters gas-liquid allotter by liquid phase can be divided three classes: overflow type, suction type and the two mixed type.The main feature of overflow type gas-liquid allotter is that pressure drop is little, and gas phase and liquid phase flow direction are vertical substantially, and structure is simple, and manufacture difficulty is lower, be comparatively applicable to high viscosity medium, is generally used for the occasion of distributing high viscosity medium.Suction type gas-liquid allotter, this gas-liquid allotter is generally provided with the parts such as bubble cap, central tube, air-flow, by producing swabbing action in the annular space of slot between bubble cap and central tube, is broken into liquid punching drop and is carried by gas and enter central tube, realizes gas-liquid mixed and distribution.
Utility model content
The purpose of this utility model is to provide a kind of gas-liquid allotter, to obtain the more uniform mixed effect of gas-liquid mixed compared with existing overflow type gas-liquid allotter.
For achieving the above object, the utility model provides a kind of gas-liquid allotter, this gas-liquid allotter comprises cover plate and central tube, cover plate is arranged at the top of central tube, central tube includes oral area and falls liquid portion, inlet location is in central tube top, liquid portion falls below inlet portion, pipe outlet centered by central tube lower end, the centrally tube axis direction that to fall in liquid portion of central tube arranges many rows of openings, it is characterized in that: the below of described central tube outlet is provided with jet mixing device, inlet portion comprises several flutings that centrally pipe top circumferencial direction is opened, its fluting direction relative centre pipe is tangential, described jet mixing device is larynx tubular structure, upper entrance is inversed taper platform structure, lower part outlet is frustum structure, middle is the connection of necking down throat.
The further technical characteristic of the present invention is: described gas-liquid allotter also comprises stream breaker, and this stream breaker is horizontally placed on the below of jet mixing device lower part outlet.
Adopt the utility model, there is following beneficial effect: during use, liquid phase enters in central tube by multiple through holes that the axis direction differing heights cross section of central tube distributes, gas phase tangentially enters in central tube at a high speed from central tube inlet portion, the air-flow of downward high-speed rotational is formed in central tube, above-mentioned gas phase produces the impact and the shearing that comprise the multiple directions of vertical direction to liquid phase, thus reaches better mixed effect.Arranging jet mixing device can make fluid obtain higher flow velocity, and produces contraction melange effect in the trunnion portion of jet mixing device, makes the mixing of liquid phase more even.When stream breaker is set below jet mixing device, the liquid phase raw material that central tube outlet at bottom flows out can be reallocated, eliminate the phenomenon that below central tube, fluid flow is larger.Therefore, the utility model can make gas-liquid distribute more equably.In addition, the utility model also have that liquid phase spray area is large, pressure drop is little, operational stability is high, operating flexibility is large, the scope of application is wide, structure is simple, the advantage such as easily manufactured, firm stable.
The utility model is mainly used in the fixed bed hydrogenation reactor in petroleum refining and chemical industry.Liquid phase raw material can be assigned to equably on the beds in fixed bed hydrogenation reactor after being assembled into gas-liquid partition tray with tray deck, make it fully to contact with catalyst, to reduce the temperature difference in beds cross section, thus improve oil quality, reduce production cost.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.But do not limit the scope that the utility model is claimed.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model gas-liquid allotter; This gas-liquid allotter is fixed on distribution plate.
Fig. 2 is the sectional view of the central tube of gas-liquid allotter shown in Fig. 11.
Fig. 3 is the sectional view after the central tube of gas-liquid allotter shown in Fig. 11 increases deflector 7.
Fig. 4 ~ Fig. 5 is the schematic diagram of stream breaker 5.Be respectively the round plate type of band perforate stream breaker and with perforate cone section and the stream breaker of round flat sheet combination pattern being with perforate.
Fig. 6 is perforate 9 schematic diagram falling liquid portion 11 that central tube 1 is offered.
Fig. 7 is the profile of jet mixing device 8.
In Fig. 1 to Fig. 7, same reference numerals represents identical technical characteristic.
Detailed description of the invention
See Fig. 1, gas-liquid allotter of the present utility model is provided with central tube 1 and cover plate 3.Central tube 1 is provided with inlet portion 10 and falls liquid portion 11, inlet portion 10 is positioned at central tube 1 top, liquid portion 11 falls below inlet portion 10, pipe outlet centered by central tube 1 lower end, centrally pipe 1 axis direction that to fall in liquid portion 11 of central tube 1 arranges many rows of openings 9, the below of described central tube outlet is provided with jet mixing device 8, inlet portion 10 comprises the rectangle fluting or Long Circle fluting that centrally pipe 1 top circumferencial direction opens, its direction relative centre pipe 1 is tangential, described jet mixing device 8 is larynx tubular structure (as shown in Figure 7), upper entrance is inversed taper platform structure, lower part outlet is frustum structure, middle is the connection of necking down throat.
Described inlet portion 10 place is provided with several fluting 2 (as shown in Figure 2 and Figure 3) tangentially, for improving fluid fed tangentially speed, can arrange guide plate 7 at tangential fluting 2 place of inlet portion 10, the tangential opening shape of the fluting 2 on inlet portion 10 is rectangle or Long Circle.Perforate 9 shape of falling in liquid portion 11 can be circular or Long Circle (as shown in Figure 6).
Described gas-liquid allotter also comprises stream breaker 5, stream breaker 5 is arranged at the below of jet mixing device 8, stream breaker 5 is perforate circle dull and stereotyped (as shown in Figure 4), or be the taper connection plate with perforate and the round flat sheet combination (as shown in Figure 5) with perforate, or be the similar Johnson's screen cloth (figure is slightly) opening strip hole.The connection of central tube 1 and distribution plate 6 is for being welded and fixed connection.
See Fig. 1 and Fig. 2, preferred version of the present utility model is, tangential fluting 2 shape of central tube 1 inlet portion 10 is rectangle, 2 quantity of slotting are generally 2 ~ 6, when central tube 1 size is less, the structure (as shown in Figure 3) of band deflector 7 can be selected to ensure that gas phase can enter central tube by tangent line.The position of inlet portion 10 is preferably placed at central tube 1 top (as shown in Figure 1), and also can there be certain distance at fluting 2 top of inlet portion 10 with cover plate 3.
Perforate 9 shape of falling liquid portion 11 is preferably circular (as shown in Figure 1), centrally axial arranged 2 ~ 4 rows of openings 9 (being 2 rows shown in Fig. 1) of pipe 1, centrally pipe 1 circumferentially 1 ~ 4 perforate 9 of every rows of openings.The size of perforate, quantity and row carry out combining to reach best gas-liquid mixed effect according to the liquid phase accounting in the inlet amount of reactor and oil gas.
Stream breaker 5 preferentially selects the round slab construction with perforate, and as shown in Figure 1, Figure 3, when gas-liquid allotter works, the fluid above stream breaker 5 can part flow down from the perforate stream breaker, to ensure the gas-liquid flow in gas-liquid allotter lower central region.
Central tube 1 and distribution plate 6 are generally and are welded to connect, to ensure that the liquid phase on distribution plate 6 can not spill from the junction with central tube 1.
It should be noted that, in the critical piece described in above-mentioned detailed description of the invention, can arrange as required or stream breaker 5 is not set, being all included in the utility model content.
For the gas-liquid allotter shown in Fig. 1, operation principle of the present utility model is described below.
Liquid phase in fluid forms certain thickness liquid layer on distribution plate 6, liquid phase enters in central tube by many exhausting holes 9 of the liquid portion 11 that the falls axial distribution on central tube 1, the fluting 2 of gas phase through place of central tube 1 top entry portion 10 is tangential to be entered in central tube 1 at a high speed, the air-flow of downward high-speed rotational is formed in central tube 1, above-mentioned gas phase produces impact and the shearing of multiple directions to liquid phase, make liquid phase fragmentation atomization, fully mix with gas phase.The jet mixing device 8 of fluid through central tube 1 outlet at bottom place of gas-liquid mixed, accelerate from base injcction by stream breaker 5 after mixing is shunk in trunnion portion, the liquid phase raw material that central tube 1 outlet at bottom flows out is reallocated, and eliminates the larger phenomenon of fluid flow below central tube.Therefore, the utility model can make gas-liquid distribute more equably.
Claims (10)
1. a gas-liquid allotter, this gas-liquid allotter comprises cover plate and central tube, cover plate is arranged at the top of central tube, central tube includes oral area and falls liquid portion, inlet location is in central tube top, liquid portion falls below inlet portion, pipe outlet centered by central tube lower end, the centrally tube axis direction that to fall in liquid portion of central tube arranges many rows of openings, it is characterized in that: the below of described central tube outlet is provided with jet mixing device, inlet portion comprises several flutings that centrally pipe top circumferencial direction is opened, its fluting direction relative centre pipe is tangential, described jet mixing device is larynx tubular structure, upper entrance is inversed taper platform structure, lower part outlet is frustum structure, middle is the connection of necking down throat.
2. a kind of gas-liquid allotter according to claim 1, is characterized in that: described inlet portion comprises several flutings that centrally pipe top circumferencial direction is opened, and fluting shape is rectangle or Long Circle.
3. a kind of gas-liquid allotter according to claim 1 and 2, is characterized in that: described inlet portion comprises several flutings that centrally pipe top circumferencial direction is opened, and fluting quantity is 2 ~ 6,
4. a kind of gas-liquid allotter according to claim 1 and 2, is characterized in that: the tangential fluting place of described inlet portion is provided with guide plate.
5. a kind of gas-liquid allotter according to claim 1, it is characterized in that: described gas-liquid allotter also comprises stream breaker, this stream breaker is horizontally placed on the below of jet mixing device lower part outlet.
6. a kind of gas-liquid allotter according to claim 5, is characterized in that: described stream breaker is that perforate circle is dull and stereotyped, or is the taper connection plate with perforate and the round flat sheet combination with perforate, or is the similar Johnson's screen cloth opening strip hole.
7. a kind of gas-liquid allotter according to claim 1 and 2, is characterized in that: the fluting shape of described inlet portion is rectangle.
8. a kind of gas-liquid allotter according to claim 1, is characterized in that: described in perforate in liquid portion is fallen, centrally manage axial arranged 2 ~ 4 rows, every rows of openings centrally manages circumferentially 1 ~ 4, and hole shape be circle or Long Circle.
9. a kind of gas-liquid allotter according to claim 1 or 8, is characterized in that: described in hole shape in liquid portion falls for circular.
10. a kind of gas-liquid allotter according to claim 6, is characterized in that: described stream breaker is perforate circle slab construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520947948.8U CN205216798U (en) | 2015-11-25 | 2015-11-25 | Gas -liquid distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520947948.8U CN205216798U (en) | 2015-11-25 | 2015-11-25 | Gas -liquid distributor |
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| Publication Number | Publication Date |
|---|---|
| CN205216798U true CN205216798U (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520947948.8U Active CN205216798U (en) | 2015-11-25 | 2015-11-25 | Gas -liquid distributor |
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| CN (1) | CN205216798U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112041058A (en) * | 2018-04-30 | 2020-12-04 | 雪佛龙美国公司 | Nozzle for a downflow hydrogenation reactor |
| CN113680285A (en) * | 2021-08-30 | 2021-11-23 | 中国石油化工股份有限公司 | Gas-liquid distribution equipment and fluidized bed hydrogenation reactor |
-
2015
- 2015-11-25 CN CN201520947948.8U patent/CN205216798U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112041058A (en) * | 2018-04-30 | 2020-12-04 | 雪佛龙美国公司 | Nozzle for a downflow hydrogenation reactor |
| CN113680285A (en) * | 2021-08-30 | 2021-11-23 | 中国石油化工股份有限公司 | Gas-liquid distribution equipment and fluidized bed hydrogenation reactor |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |