CN2290399Y - Liquid-gas dispatcher - Google Patents
Liquid-gas dispatcher Download PDFInfo
- Publication number
- CN2290399Y CN2290399Y CN 97202674 CN97202674U CN2290399Y CN 2290399 Y CN2290399 Y CN 2290399Y CN 97202674 CN97202674 CN 97202674 CN 97202674 U CN97202674 U CN 97202674U CN 2290399 Y CN2290399 Y CN 2290399Y
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- CN
- China
- Prior art keywords
- plate
- liquid
- gas distributor
- liquid gas
- circular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The utility model relates to a liquid-gas distributor used for the solid catalyst of the fixed bed reactor in the oil refining industry and the petrochemical industry, which is composed of a guiding plate, a baffle plate, a center pipe, a throttle plate, a breaking plate, a tower tray, etc. The utility model is characterized in that the conical surface A of the liquid-gas distributor is formed by the match of the circular baffle plate, the annular guiding plate and the center pipe. The conical surface A forms a first throttle dispersal atomization part. The outlet of the center pipe is provided with the circular breaking plate. A second throttle dispersal atomization part B is formed under the breaking plate.
Description
The invention relates in oil refining, the petroleum chemical industry in the fixed bed catalytic reactor, evenly spread on the solid catalyst, make catalytic reaction fast, fully, prolong catalyst service life for making reaction medium liquid gas.
The liquid gas distributor of industrial use requires the temperature gap on its catalyst radial section can not be too big, otherwise influences stable, the long-time running of reaction effect and device.A kind of liquid gas distributor actual measurement temperature difference radially of China's introduction at present is 10～20 ℃, and the actual measurement temperature difference of another kind of liquid gas distributor also reaches 5～10 ℃.Actual reflection fluid gas is even inadequately, concentrates liquid measure bigger in the center of central tube, peak value occurs.
The purpose of this utility model is exactly the shortcoming that will overcome existing liquid gas distributor liquid gas maldistribution, and the peak value that liquid phase is sprayed on the catalyst bed is lower, makes full-bodied liquid phase also can reach liquid gas distributed uniform simultaneously.
Influence liquid gas distributor efficient and mainly contain two broad aspect factors, a factor is the influence of gas-liquid two-phase rerum natura, comprising: (1) gas, liquid two phase density ratios, the more little easy more distributed uniform of its ratio; (2) gas, liquid two phase viscosities, the big more difficult more distributed uniform of liquid phase viscosity; (3) liquid phase surface tension, the big more difficult more distributed uniform of its surface tension.Second factor is the influence of dispensing arrangement, liquid gas distributor of the present utility model, try hard to the problem big at liquid gas two-phase density difference, that liquid phase viscosity is big, surface tension is big, the structure of liquid gas distributor is improved, accompanying drawing is in order to illustrate liquid gas distributor of the present utility model.
Attached Fig. 1 and 2 is the profile of the liquid gas distributor that provides according to the utility model.
Among the figure: the annular choke block of (1) circular baffle plate (2)
(3) annular guide plate (4) central tube
(5) circular crushing shell (6) tower tray
(7) bolt (8) nut
(9) gripper shoe
A is the aerosol dispersion of throttling for the first time position
B is the aerosol dispersion of throttling for the second time position
The liquid gas distributor of this spline structure can reach throttling aerosol dispersion position twice, under local high velocity air, repeatedly pulverize liquid phase, make its liquid phase be dispersed into very little drop and atomize, be evenly dispersed in the gas phase, evenly be sprayed onto on the solid catalyst bed and reach.Fig. 1 and Fig. 2 adopt twice throttling aerosol dispersion, A that its concrete position is Fig. 1 and Fig. 2 and B two positions.Fig. 1 and Fig. 2 structure are basic identical, and different is that baffle plate (1) is respectively surface plate or circular enclosure, and the top of annular guide plate (3) can perforate or not perforate.
The present invention will be described in more detail with reference to the accompanying drawings, circular plate washer (1) among Fig. 1 is to prevent that fluid from up to down from directly entering in the liquid gas distributor, gas phase enters in the annular gathering sill in the space between circular baffle plate (1) and annular choke block (2) and annular guide plate (3), and the liquid-leaking nozzle of liquid phase from annular guide plate (3) bottom overflows in the annular gathering sill and mix with gas phase; The two-phase logistics enters into the annular space of A portion, its annular space is the tapered joint stream interface,, improved the annular space area flow velocity of fluid greatly because dwindling suddenly, make liquid phase form the fluidised form of the spraying that has the tuftlet liquid phase, thereby reach primary aerosol dispersion, two-phase enters in the hollow chamber, forms two fluids: the one, have the gas phase of droplet; The 2nd, wispy liquid phase.Fluid flows downward through central tube (4), and (being the export distributor place) is provided with crushing shell (5) in the central tube exit, and its effect has three: 1. fair speed tuftlet shape liquid phase is struck on the crushing shell and be ground into droplet; 2. dwindle circulation area, make its logistics flow velocity bring up to the jet logistics fluidised form greatly, aerosol dispersion solves little line and big drop in the aerosol dispersion first time once more; 3. because thing liquid at a high speed by slit between central tube and crushing shell, causes the relatively low pressure state under the crushing shell, thereby causes back-mixing under the crushing shell, make the liquid phase that from crushing shell, flows down the hole carry out aerosol dispersion.
Because liquid gas distributor of the present invention is provided with two aerosol dispersion fluid position A and B, promptly the central tube inlet at liquid gas distributor is provided with taper surface, be provided with crushing shell in the central tube outlet, make by taper surface the fluid that all enter distributor is gathered together, by the crushing shell unification all liquid crushings are atomized at last, make fluid with vaporific ejection distributor.This converges-broken atomization mechanism, makes distributor have bigger operating flexibility and distribution effects preferably.
Adopt liquid gas distributor of the present invention, be used for device such as coker gas oil hydrogenation, catalytic diesel oil upgrading, hydrocracking, lube oil hydrogenation and residual hydrogenation, the catalyst radial temperature difference is reduced, prolong catalyst service life greatly, thereby can prolong operation cycle, produce considerable economic.Adopt liquid gas distributor of the present invention also obvious effects to be arranged than original distributor to handling full-bodied oil product.
Claims (3)
1. be used to refine oil, the liquid gas distributor of the solid catalyst of petroleum chemical industry fixed bed reactors, form by guide plate (3), baffle plate (1), central tube (4), choke block (2), crushing shell (5), tower tray (6) etc., it is characterized in that cooperating with central tube (4) forming liquid gas distributor taper surface A, form the aerosol dispersion of throttling for the first time position at taper surface A by circular plate washer (1), annular guide plate (3); Be provided with circular crushing shell (5) in the central tube exit, under crushing shell, form the aerosol dispersion of throttling for the second time position B.
2. liquid gas distributor according to claim 1 is characterized in that baffle plate (1) can be a surface plate, or circular enclosure.
3. liquid gas distributor according to claim 1 is characterized in that the top of annular guide plate (3) can perforate, perhaps not perforate above the guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97202674 CN2290399Y (en) | 1997-04-02 | 1997-04-02 | Liquid-gas dispatcher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97202674 CN2290399Y (en) | 1997-04-02 | 1997-04-02 | Liquid-gas dispatcher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2290399Y true CN2290399Y (en) | 1998-09-09 |
Family
ID=33923772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97202674 Expired - Lifetime CN2290399Y (en) | 1997-04-02 | 1997-04-02 | Liquid-gas dispatcher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2290399Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103796745A (en) * | 2011-08-03 | 2014-05-14 | 道达尔销售服务公司 | Tray for dispensing a gas and a liquid, reactor provided with such a tray, and use of said tray |
| CN108854866A (en) * | 2017-05-10 | 2018-11-23 | 中国石油集团东北炼化工程有限公司吉林设计院 | Distributor and its top cap |
-
1997
- 1997-04-02 CN CN 97202674 patent/CN2290399Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103796745A (en) * | 2011-08-03 | 2014-05-14 | 道达尔销售服务公司 | Tray for dispensing a gas and a liquid, reactor provided with such a tray, and use of said tray |
| CN103796745B (en) * | 2011-08-03 | 2016-08-17 | 道达尔销售服务公司 | The distribution platform dish of gas and liquid, equipped with the reactor of this dish and the purposes of described dish |
| CN108854866A (en) * | 2017-05-10 | 2018-11-23 | 中国石油集团东北炼化工程有限公司吉林设计院 | Distributor and its top cap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20070402 Granted publication date: 19980909 |