CN2757911Y - Suction split flow type gas liquid distributor - Google Patents
Suction split flow type gas liquid distributor Download PDFInfo
- Publication number
- CN2757911Y CN2757911Y CN 200420115971 CN200420115971U CN2757911Y CN 2757911 Y CN2757911 Y CN 2757911Y CN 200420115971 CN200420115971 CN 200420115971 CN 200420115971 U CN200420115971 U CN 200420115971U CN 2757911 Y CN2757911 Y CN 2757911Y
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- CN
- China
- Prior art keywords
- central tube
- bubble cap
- distributor
- isocon
- liquid
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- 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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Abstract
The utility model relates to a suction flow diversion type gas liquid distributor, which is composed of a bubble cap (3), a central tube (4), a flow diversion pipe (2) and a flange (5), wherein the bubble cap (2) is a cylinder with uniform cloth strip gaps (6) at the bottom; the top of the flow diversion pipe (2) is provided with a rectangular strip gap (1), and the bottom of the flow diversion pipe (2) is welded on a support ear (7) at the top of the central tube (4); the bottom of the central tube (4) is welded on the flange (5), and the bubble cap (3) is fixed on the support ear (7) at the top of the central tube (4) by a fixed jaw (8) of the bubble cap. The distributor is capable of making liquid phases obtain better dispersion and atomization, and small pressure drop makes the gas liquid phase flow in a hydrogenation reactor bed be uniformly distributed to a catalyst bed.
Description
Technical field
The utility model relates to the gas-liquid allotter of a kind of gas-liquid two-phase and stream, is particularly useful for the uniform distribution of biphase gas and liquid flow in the trickle bed hydrogenation reactor.
Background technology
In hydrogenation reactor, the fluid distribution performance directly influences the uniformity of reactant and catalyst time of contact, influence the inside and outside surface of catalyst by the wetting degree of liquid and since skewness form collude stream and short circuit etc., and finally can influence the distribution of bed temperature and the quality of product.Particularly reactor is to maximization, when product develops to the direction that becomes more meticulous, and the importance that fluid distributes is just more outstanding.Therefore, the design of good reactor inner member is and is important.Both at home and abroad the research and the engineering development of hydrogenation reactor inner member are paid much attention to always, many engineering companies have all developed the complete set technology of oneself.
Be uniform-distribution with many distributors on the distribution plate, each distributor is allocation units, and gas-liquid two-phase by distributor, is evenly distributed to beds jointly.The development of distributor is varied, and the distributor of present industrial application can be divided three classes by the liquid phase mode of entrance: overflow type, suction type and both mixed types.
US3, Fig. 3 of 524,731 are typical overflow type distribution plate, are made up of the length pipe, and when liquid phase exceeded short tube on the distribution plate, liquid phase entered bed with regard to overflow, and gas phase enters bed through long tube, the gas-liquid shunting.See that from the part gas-liquid distribution is irregular, but by many combinations to the length pipe on the whole distribution plate, can obtaining substantially uniformly, gas-liquid flow distributes.Overflow type distributor main feature is that pressure drop is little, is fit to high viscosity medium, but distributes performance very responsive to the distribution plate levelness, to distribution plate processing, installation requirement than higher.
US3,218, Fig. 2 of 249 is typical suction type, form by central tube and the bubble cap of opening bar seam, when liquid level is higher than the bubble cap lower edge, the high velocity air that enters from the bubble cap slot produces strong swabbing action in the annular space of bubble cap and central tube, cause liquid phase to be dashed and be broken into drop and enter central tube for ascending air carries, and realizes the even distribution of gas-liquid.The advantage of suction type distributor is to distribute performance low to distribution plate levelness sensitiveness, overall co-ordination distributes performance good, but shortcoming is to exist one all to be difficult for the center stream that disperses under the single gas-liquid allotter under any operating mode, and the liquid bad adaptability bigger to viscosity, and pressure drop is also big.
Fig. 1 of CN2355786Y is the combination of suction type and overflow type, adopting the enlarging form except the central tube end increases the liquid spraying area, mainly established spout hole newly, taken into account overflow type pressure and fallen little and the advantage suction type distributed uniform, also improved operating flexibility simultaneously in the central tube bottom.From the development trend of distribution plate, the combined distributor of suction type or suction type and overflow type is the target of developing from now on.
The more distributor of China's application at present mainly is US3,218,249 distributor shown in Figure 2, this distributor has the good whole distributing uniformity, but local allocation is also inhomogeneous: liquid phase material is normal distribution, and about 70% above liquid phase material concentrate be distributed in the distributor central tube under, cause liquid phase material can not be uniformly distributed on the catalyst bed layer cross section, influenced reaction fully, homogeneous carries out.
The utility model content
The purpose of this utility model is the shortcoming of confluxing at the ubiquitous center of present suction type gas-liquid allotter, distributes that performance is good, the partial suction streams type gas-liquid allotter of the little seriation of pressure drop but design is a kind of.
The partial suction streams type gas-liquid allotter structure of the utility model design is as follows:
This partial suction streams type gas-liquid allotter is to be made of bubble cap, central tube, isocon and flanged plate, wherein bubble cap is the cylinder of the equal cloth seam in bottom, bubble cap is fixed on the journal stirrup of central tube top, the top has isocon bottom and the welding of central tube top journal stirrup, central tube and the flanged plate welding of rectangular strip seam.
The distributor of the utility model design can make liquid phase be disperseed better and atomize, and pressure drop is little, makes the interior gas-liquid phase logistics of hydrogenation reactor bed be evenly distributed to beds.
Description of drawings
Accompanying drawing is the partial suction streams type gas-liquid allotter schematic diagram of the utility model design.
The specific embodiment
More detailed structure is as follows for the partial suction streams type gas-liquid allotter of the utility model design:
This partial suction streams type gas-liquid allotter is to be made of bubble cap, central tube, isocon and flanged plate, wherein bubble cap is the cylinder of the equal cloth seam in bottom, bubble cap is fixed on the journal stirrup of central tube top, the top has isocon bottom and the welding of central tube top journal stirrup, central tube and the flanged plate welding of rectangular strip seam.
The bubble cap top diameter is equal to or less than its base diameter.4-8 bar seam evenly is set in the bubble cap bottom, the bar seam be shaped as quadrangle or triangle, the preferred rectangle of quadrangle wherein, the preferred isosceles triangle of triangle.Bubble cap is fixed on the journal stirrup of central tube top by the bubble cap fixture.
The isocon top has the rectangular strip seam.The effect of isocon top rectangular bar seam is: when gas phase is carried liquid phase when entering central tube, because of there being the part gas phase directly to enter central tube through isocon top rectangular bar seam, having reduced gas phase carries to the center ability of confluxing the suction of liquid phase, reach the lateral flow component effect that has increased mixed flow in the central tube, make the center stream that exists under the distributor be able to effective dispersion.
Adapt to the different operating operating mode by regulating isocon top rectangular bar seam area to regulate the gas phase flux simultaneously, can realize the seriation of distributor, adjustable rectangular strip seam area is the 10-40% of central tube sectional area.
Central tube is equal diameter pipe or up-small and down-big taper flared tube, and place, central tube bottom is uncovered, and the central tube top communicates with isocon, and central tube is fixed on the bubble cap top inner wall by journal stirrup, central tube and flanged plate welding.By flanged plate whole distributor and reactor gripper shoe are fixed.
Below in conjunction with accompanying drawing the partial suction streams type gas-liquid allotter that the utility model designs is given further instruction.
Accompanying drawing is the partial suction streams type gas-liquid allotter schematic diagram of the utility model design.
This partial suction streams type gas-liquid allotter is to be made of bubble cap 3, central tube 4, isocon 2 and flanged plate 5, wherein bubble cap 3 is the cylinder of the equal cloth seam 6 in bottom, bubble cap 3 is fixed on the central tube top journal stirrup 7 by bubble cap fixture 8, isocon 2 tops have rectangular strip seam 1, isocon 2 communicates with central tube 4 tops, central tube 3 and flanged plate 4 welding.
The bar seam 6 that the bubble cap bottom evenly is provided with in the accompanying drawing is shaped as rectangle, and also triangle or other quadrangle are as isosceles triangle or square.
The partial suction streams type gas-liquid allotter operation principle of the utility model design is as follows:
Gas phase is divided into two-way when entering distributor: a part of gas phase directly enters central tube 4 by the isocon 2 at central tube 4 tops, and the suction of another part gas phase is carried liquid phase and is mixed and fed into central tube 4 tops by central tube 4 and 3 annular spaces of bubble cap.Central tube 4 top liquid phases are crushed into drop under two bursts of gas shocks, because of the sudden enlargement of aisle spare, the gas-liquid two-phase mixed flow is taper and sprays downwards during to central tube 4 outlets, thereby realizes the gas-liquid distribution.Wherein, because of there being the part gas phase directly to enter central tube 4 through isocon 2 top rectangular bars seam, having reduced gas phase carries to the center ability of confluxing the suction of liquid phase, reach the lateral flow component effect that has increased mixed flows in the central tube 4, make the center stream that exists under the distributor be able to effective dispersion.
The partial suction streams type gas-liquid allotter of the utility model design compared with prior art has following characteristics:
1, distribution is more even, and its distribution curve peak value only is 1/3～1/2 of prior art;
2, range of distribution is big, and its material range of distribution is 120%～150% of prior art;
3, pressure drop is little, and its pressure drop only is 2/5～1/2 of prior art.
4, adapt to different behaviour by regulating isocon top rectangular bar seam area to regulate the gas phase flux Make operating mode, can realize the seriation of distributor.
Claims (5)
1, a kind of partial suction streams type gas-liquid allotter, it is characterized in that this distributor is to be made of bubble cap (3), central tube (4), isocon (2) and flanged plate (5), wherein bubble cap (3) is the cylinder of the equal cloth seam in bottom (6), isocon (2) top has rectangular strip seam (1), isocon (2) bottom and central tube (4) top journal stirrup (7) welding, bubble cap (3) is fixed on central tube (4) the top journal stirrup (7) by bubble cap fixed claw (8), central tube (4) bottom and flanged plate (5) welding.
2,, it is characterized in that described bubble cap (3) top diameter is equal to or less than its base diameter according to the distributor of claim 1.
3, according to the distributor of claim 1, what it is characterized in that bar seam (6) that the bubble cap bottom evenly is provided with is shaped as quadrangle or triangle, and the number of bar seam is 4-8.
4, according to the distributor of claim 3, it is characterized in that described quadrangle is a rectangle, triangle is an isosceles triangle.
5, according to the distributor of claim 1, it is characterized in that described central tube (4) is equal diameter pipe or up-small and down-big taper flared tube, place, central tube bottom is uncovered, and the central tube top communicates with isocon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420115971 CN2757911Y (en) | 2004-11-30 | 2004-11-30 | Suction split flow type gas liquid distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420115971 CN2757911Y (en) | 2004-11-30 | 2004-11-30 | Suction split flow type gas liquid distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2757911Y true CN2757911Y (en) | 2006-02-15 |
Family
ID=36078050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420115971 Expired - Lifetime CN2757911Y (en) | 2004-11-30 | 2004-11-30 | Suction split flow type gas liquid distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2757911Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391197B (en) * | 2007-09-20 | 2011-02-09 | 中国石油化工股份有限公司 | Logistics mixing distribution system |
| CN102441349A (en) * | 2010-10-13 | 2012-05-09 | 中国石油化工股份有限公司 | Hydrogenation technological method for reducing skimming of catalyst |
| CN102451648A (en) * | 2010-10-25 | 2012-05-16 | 中国石油化工股份有限公司 | Gas liquid distributor |
| CN103102939A (en) * | 2011-11-10 | 2013-05-15 | 中国石油化工股份有限公司 | Hydrogenation process for reducing catalyst skimming |
| CN105327657A (en) * | 2014-08-11 | 2016-02-17 | 中石化洛阳工程有限公司 | Overflow-type gas-liquid distributor |
| CN105498642A (en) * | 2015-12-31 | 2016-04-20 | 兰州兰石集团有限公司 | Suction and overflow combined type gas and liquid separator |
| CN106565494A (en) * | 2015-10-12 | 2017-04-19 | 中国石油化工股份有限公司 | Methyl nitrite preparation method by reaction of NO and nitric acid and methanol |
| CN108097179A (en) * | 2016-11-25 | 2018-06-01 | 中国石油化工股份有限公司 | A kind of grating type, which subtracts, rushes equal flow table |
| CN109985574A (en) * | 2017-12-29 | 2019-07-09 | 中国石油化工股份有限公司 | The hydrogenator for subtracting punch plate is arranged in top |
-
2004
- 2004-11-30 CN CN 200420115971 patent/CN2757911Y/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391197B (en) * | 2007-09-20 | 2011-02-09 | 中国石油化工股份有限公司 | Logistics mixing distribution system |
| CN102441349A (en) * | 2010-10-13 | 2012-05-09 | 中国石油化工股份有限公司 | Hydrogenation technological method for reducing skimming of catalyst |
| CN102441349B (en) * | 2010-10-13 | 2013-11-20 | 中国石油化工股份有限公司 | Hydrogenation technological method for reducing skimming of catalyst |
| CN102451648B (en) * | 2010-10-25 | 2015-01-14 | 中国石油化工股份有限公司 | Gas liquid distributor |
| CN102451648A (en) * | 2010-10-25 | 2012-05-16 | 中国石油化工股份有限公司 | Gas liquid distributor |
| CN103102939B (en) * | 2011-11-10 | 2015-02-18 | 中国石油化工股份有限公司 | Hydrogenation process for reducing catalyst skimming |
| CN103102939A (en) * | 2011-11-10 | 2013-05-15 | 中国石油化工股份有限公司 | Hydrogenation process for reducing catalyst skimming |
| CN105327657A (en) * | 2014-08-11 | 2016-02-17 | 中石化洛阳工程有限公司 | Overflow-type gas-liquid distributor |
| CN106565494A (en) * | 2015-10-12 | 2017-04-19 | 中国石油化工股份有限公司 | Methyl nitrite preparation method by reaction of NO and nitric acid and methanol |
| CN106565494B (en) * | 2015-10-12 | 2018-08-17 | 中国石油化工股份有限公司 | The method that NO reacts methyl nitrite processed with nitric acid and methanol |
| CN105498642A (en) * | 2015-12-31 | 2016-04-20 | 兰州兰石集团有限公司 | Suction and overflow combined type gas and liquid separator |
| CN108097179A (en) * | 2016-11-25 | 2018-06-01 | 中国石油化工股份有限公司 | A kind of grating type, which subtracts, rushes equal flow table |
| CN109985574A (en) * | 2017-12-29 | 2019-07-09 | 中国石油化工股份有限公司 | The hydrogenator for subtracting punch plate is arranged in top |
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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: 20141130 Granted publication date: 20060215 |