CN205495549U - Overflowing type gas -liquid distributor - Google Patents
Overflowing type gas -liquid distributor Download PDFInfo
- Publication number
- CN205495549U CN205495549U CN201521122494.7U CN201521122494U CN205495549U CN 205495549 U CN205495549 U CN 205495549U CN 201521122494 U CN201521122494 U CN 201521122494U CN 205495549 U CN205495549 U CN 205495549U
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Abstract
The utility model relates to a fixed bed reactor equipment technical field discloses an overflowing type gas -liquid distributor, and it includes central line center tube, main part pipe and the plate of distributor of coincidence each other, and the bottom of main part pipe is equipped with the flange, and the flange is connected with the plate of distributor, the bottom of main part pipe is connected with venturi throat, and main part pipe pipe wall lower part is equipped with the spout hole, annular roof that the center tube runs through main part nose end stretches into to the inner chamber of main part pipe in, and the top of center tube is equipped with the apron, and the bottom extends to the junction of venturi throat and main part pipe, center tube pipe wall upper portion is equipped with the strip seam, and the pipe wall middle part is equipped with the feed liquor hole. A gaseous seam entering center tube, the liquid of following behind the gas -liquid intensive mixing, passes through venturi throat's distributional effects from spout hole, feed liquor hole entering center tube again, and messenger's liquid phase can not produce center stream on evenly spraying the catalyst bed, has avoided because mixtures's skewness results in the super gentle coking in part of catalyst bed to reaction product's quality has been guaranteed.
Description
Technical field
This utility model relates to fixed bed hydrogenation reactor equipment technical field, the overflow type gas-liquid allotter that a kind of simple in construction, distribution effects are splendid.
Background technology
Fixed bed reactors are widely used in the hydroprocessing technique in petrochemical industry, gas-liquid allotter is the important inner member in fixed bed hydrogenation reactor, the progress of hydrogen addition technology is not only embodied in catalyst technology and Technology, and the structure of reactor internals is also key point.In hydroprocessing technique, gas-liquid two-phase reactant is generally and stream is downward through beds, and the Main Function of gas-liquid allotter is gas-liquid two-phase logistics to be mixed, and is evenly dispersed into beds, make reaction bed temperature be evenly distributed, give full play to the usefulness of catalyst.If gas-liquid allotter design is unreasonable, hydrogenation reaction inhomogeneities in beds can be caused, cause radial temperature difference excessive, affect the catalyst surface degree by liquid phase moistening, thus affect product quality.
Fixed bed reactors gas-liquid allotter can be divided into three major types according to functional characteristic: overflow type, suction type and both mixed types.
Overflow type gas-liquid allotter i.e. liquid enters gas-liquid allotter by spout hole；Overflow type gas-liquid allotter is generally used in minor diameter reactor or in the case of high viscosity medium, it is little that it is mainly characterized by pressure drop, is suitable for high viscosity medium；Shortcoming is that the requirement to installation level is harsher.
Suction type gas-liquid allotter is gas sweeps along entrance gas-liquid allotter by swabbing action by liquid, when normally working, first liquid phase sets up liquid level in distribution tray, gas phase enters gas-liquid allotter by the bar seam on bubble cap, unexpected reduction due to bar seam aisle spare, gas phase velocity increases formation high velocity air accordingly, produces strong swabbing action, and then by liquid dispersion.The advantage of suction type gas-liquid allotter is relatively big to installation level allowable error, and shortcoming is poor to the Adaptability of medium that viscosity is bigger.
The mixed type gas-liquid allotter being provided simultaneously with overflow and pumping function is to offer spout hole in the middle and lower part of central canal, the pressure drop performance of mixed type gas-liquid allotter and the more simple overflow type of operating flexibility and suction type gas-liquid allotter all make moderate progress, but allocation performance has declined.
Current domestic field of hydrogenation is wide variety of is associating oil type gas-liquid allotter, and its structure is more complicated, there is the most serious " central bus " phenomenon, and the peak value that radially distributes of liquid phase compared with high, distribution is little.
Utility model content
This utility model purpose is to provide a kind of overflow type gas-liquid allotter, the problem little to solve existing gas-liquid allotter structure complexity, liquid phase skewness and allotment area.
For solving the problems referred to above, technical solution adopted in the utility model is:
A kind of overflow type gas-liquid allotter, it includes cylindrical center pipe, cylindrical body pipe, distribution plate, and the top of described main body tube is provided with annular roof plate, and the bottom of main body tube is provided with flange, main body tube runs through the perforate of distribution plate, and flange is connected by bolt with distribution plate；The bottom of main body tube is connected with Venturi throat, and main body tube tube wall bottom is provided with spout hole at Venturi throat；Central canal runs through in the inner chamber that annular roof plate stretches to main body tube, and the top of central canal is provided with cover plate, and bottom is uncovered, and the bottom of central canal extends to the junction of Venturi throat and main body tube；The tube wall that central canal is exposed at outside main body tube is provided with bar seam, and the outer wall that central canal is positioned in main body tube inner chamber is provided with several inlet opening, and the position of inlet opening is higher than spout hole position.
As further improvement of the utility model, described main body tube coincides with the centrage of central canal.
Further improving as of the present utility model, the tube wall of described central canal is tightly connected with annular roof plate.
Further improving as of the present utility model, described cover plate is solid slab, is welded in the top of central canal.
Further improving as of the present utility model, described cover plate is circular flat panel or cone plate or arc.
Further improving as of the present utility model, the quantity of described bar seam is 2-8, is distributed in the tube wall top of central canal, and its length direction is the most consistent with central canal.
Further improving as of the present utility model, the two ends that are shaped as of described bar seam are in polygon or ellipse in the middle of arc-shaped.
Further improving as of the present utility model, described inlet opening is distributed on central canal tube wall between bar seam and spout hole, and quantity is 4-16.
Further improve as of the present utility model, described inlet opening generally circular in shape, or oval, or polygon, or circular with polygonal combination.
Further improving as of the present utility model, the quantity of described spout hole is 2-8, is distributed in the tube wall bottom of main body tube, and being shaped as of spout hole is semicircle with the combining form of rectangle or trapezoidal or circular or oval.
In use, gas-liquid phase mixture is from the overhead stream of hydrogenation reactor, and the gas bar seam from tube wall top, center enters inside central canal, and owing to circulation area reduces, gas phase raises speed after entering central canal, strengthening gas-liquid atomization for this utility model；Liquid sets up liquid level on distribution plate, liquid enters the annulus between main body tube and central canal tube wall from the spout hole being arranged on main body tube tube wall bottom, spout hole makes liquid enter in annulus with lamelliform, the height of liquid level is relevant with liquid inlet volume, fluctuate up and down, when liquid does not has complete submerged overflow hole, gas carries out mixing for the first time in this position with liquid；When fluid flow bigger submerged overflow hole, in spout hole, only liquid flows into, due to the pressure that pressure in annulus is peripheral less than gas-liquid allotter, a part of liquid is gradually increasing by the liquid level in annulus during swabbing action in annulus, until being full of whole annulus, the inlet opening that liquid is arranged in the middle part of the tube wall of center becomes stock to enter in the horizontal direction inside central canal, mixes with gas, and gas-liquid mixture is downwardly towards Venturi throat along central canal；Another part liquid flow at Venturi throat along the inwall of main body tube, with the gas-liquid mixture generation impact that flows down in central canal；Being arranged on the Venturi throat bottom main body tube is the structure gradually tapering up further expansion, gas phase velocity becomes high velocity air at contraction section, gas-liquid two-phase is vigorously mixed formation dispersion stream in Venturi throat, liquid is broken into tiny drop under high-speed gas dispels, not only move along the radially accelerated of Venturi throat, but also to axially diffusing, Venturi throat expansion segment is up-small and down-big pyramidal structure, its sectional area gradually expands, the tapered downward operation of gas-liquid mixed stream, uniformly it is sprayed onto on beds, thus realizes the uniform distribution of gas-liquid.
The beneficial effects of the utility model are:
(1) this utility model uses central canal and the main body tube of mutual sheathing, the bottom of main body tube is connected with Venturi throat, and bar seam is set on the tube wall top of central canal, inlet opening is set in the middle part of tube wall, the bottom of main body tube arranges spout hole, gas is made to enter central canal from bar seam, liquid is from spout hole, inlet opening enters central canal and is sufficiently mixed, again through the distributional effects of Venturi throat, even in liquid phase is made to be sprayed onto on beds, center stream will not be produced, avoid owing to the skewness of mixed material causes local overheating and the coking of beds, thus ensure that the quality of product；
(2) gas-liquid fluid that in this utility model, solid cover-plate is prevented from flowing from top to bottom is directly entered inside central canal；When being shaped as taper seat or cambered surface of cover plate, logistics can be played the effect of buffering；
(3) this utility model simple in construction, gas-liquid allocation performance is splendid.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model；
In figure: 1, central canal, 2, bar seam, 3, main body tube, 4, spout hole, 5, inlet opening, 6, Venturi throat, 7, flange, 8, distribution plate, 9, annular roof plate, 10, cover plate, 11, bolt, 12, pad, 13, nut.
Detailed description of the invention
Below in conjunction with the accompanying drawings technical scheme described in the utility model is described in further detail.
A kind of overflow type gas-liquid allotter as shown in Figure 1, it includes cylindrical center pipe 1, the cylindrical body pipe 3 that centrage coincides, and distribution plate 8, the top of main body tube 3 is provided with annular roof plate 9, the bottom of main body tube 3 is provided with flange 7, main body tube 3 runs through the perforate of distribution plate 8, and flange 7 is connected by bolt 11 with distribution plate 8；The bottom of main body tube 3 is connected with Venturi throat 6, and main body tube 3 tube wall bottom is provided with spout hole 4 at Venturi throat 6；Central canal 1 runs through in the inner chamber that annular roof plate 9 stretches to main body tube 3, the tube wall of central canal 1 is tightly connected with annular roof plate 9, the top of central canal 1 is welded with the cover plate 10 of circular solids, and bottom is uncovered, and the bottom of central canal 1 extends to the junction of Venturi throat 6 and main body tube 3；The tube wall that central canal 1 is exposed at outside main body tube 3 is provided with bar seam 2, and the outer wall that central canal 1 is positioned in main body tube 3 inner chamber is provided with several inlet opening 5, and the position of inlet opening 5 is higher than spout hole 4 position.
The quantity of bar seam 2 is 2-8, is distributed in the tube wall top of central canal 1, and its length direction is the most consistent with central canal 1.Inlet opening 5 is distributed on the central canal 1 tube wall between bar seam 2 and spout hole 4, and quantity is 4-16.The quantity of spout hole 4 is 2-8, is distributed in the tube wall bottom of main body tube 3,
The present embodiment cover plate 10 is circular flat panel, and the shape of cover plate 10 can also be cone plate or arc.
In the present embodiment, the two ends that are shaped as of bar seam 2 are rectangular in the middle of arc-shaped, and the shape of bar seam 2 can also be polygon or ellipse.
In the present embodiment, inlet opening 5 is generally circular in shape, and the shape of inlet opening 5 can also be oval, or polygon, or circular and polygonal combination.
The combining form being shaped as semicircle and rectangle of spout hole 4 in the present embodiment, the shape of spout hole 4 can also be trapezoidal or circular or oval.
In use, gas-liquid phase mixture is from the overhead stream of hydrogenation reactor, and the gas bar seam 2 entrance central canal 1 from central canal 1 tube wall top is internal, and owing to circulation area reduces, gas phase raises speed after entering central canal 1, strengthening gas-liquid atomization for this utility model；Liquid sets up liquid level on distribution plate 8, liquid enters the annulus between main body tube 3 and central canal 1 tube wall from the spout hole 4 being arranged on main body tube 3 tube wall bottom, spout hole 4 makes liquid enter in annulus with lamelliform, the height of liquid level is relevant with liquid inlet volume, fluctuate up and down, when liquid does not has complete submerged overflow hole 4, gas carries out mixing for the first time in this position with liquid；When fluid flow bigger submerged overflow hole 4, in spout hole 4, only liquid flows into, due to the pressure that pressure in annulus is peripheral less than gas-liquid allotter, a part of liquid is gradually increasing by the liquid level in annulus during swabbing action in annulus, until being full of whole annulus, it is internal that the inlet opening 5 that liquid is arranged in the middle part of central canal 1 tube wall becomes stock to enter central canal 1 in the horizontal direction, mixes with gas, and gas-liquid mixture is downwardly towards Venturi throat 6 along central canal 1；Another part liquid flow at Venturi throat 6 along the inwall of main body tube 3, with the gas-liquid mixture generation impact that flows down in central canal 1；Being arranged on the Venturi throat 6 bottom main body tube 3 is the structure gradually tapering up further expansion, gas phase velocity becomes high velocity air at contraction section, gas-liquid two-phase is vigorously mixed formation dispersion stream in Venturi throat 6, liquid is broken into tiny drop under high-speed gas dispels, not only move along the radially accelerated of Venturi throat 6, but also to axially diffusing, the expansion segment of Venturi throat 6 is up-small and down-big pyramidal structure, its sectional area gradually expands, the tapered downward operation of gas-liquid mixed stream, uniformly it is sprayed onto on beds, thus realize the uniform distribution of gas-liquid.
This utility model uses central canal and the main body tube of mutual sheathing, the bottom of main body tube is connected with Venturi throat, and bar seam is set on the tube wall top of central canal, inlet opening is set in the middle part of tube wall, the bottom of main body tube arranges spout hole, gas is made to enter central canal from bar seam, liquid is from spout hole, inlet opening enters central canal and is sufficiently mixed, again through the distributional effects of Venturi throat, even in liquid phase is made to be sprayed onto on beds, center stream will not be produced, avoid owing to the skewness of mixed material causes local overheating and the coking of beds, thus ensure that the quality of product.
Claims (10)
1. an overflow type gas-liquid allotter, it includes cylindrical center pipe (1), cylindrical body pipe (3), distribution plate (8), it is characterized in that: the top of described main body tube (3) is provided with annular roof plate (9), the bottom of main body tube (3) is provided with flange (7), main body tube (3) runs through the perforate of distribution plate (8), and flange (7) is connected by bolt (11) with distribution plate (8)；The bottom of main body tube (3) is connected with Venturi throat (6), and main body tube (3) tube wall bottom is provided with spout hole (4) near Venturi throat (6) place；Central canal (1) runs through in the inner chamber that annular roof plate (9) stretches to main body tube (3), and the top of central canal (1) is provided with cover plate (10), and bottom is uncovered, and the bottom of central canal (1) extends to the junction of Venturi throat (6) and main body tube (3)；Central canal (1) is exposed at main body tube (3) tube wall outward and is provided with bar seam (2), and the outer wall that central canal (1) is positioned in main body tube (3) inner chamber is provided with several inlet opening (5), and the position of inlet opening (5) is higher than spout hole (4) position.
Overflow type gas-liquid allotter the most according to claim 1, it is characterised in that: described main body tube (3) coincides with the centrage of central canal (1).
Overflow type gas-liquid allotter the most according to claim 1 and 2, it is characterised in that: the tube wall of described central canal (1) is tightly connected with annular roof plate (9).
Overflow type gas-liquid allotter the most according to claim 3, it is characterised in that: described cover plate (10) is solid slab, is welded in the top of central canal (1).
Overflow type gas-liquid allotter the most according to claim 4, it is characterised in that: described cover plate (10) is circular flat panel or cone plate or arc.
Overflow type gas-liquid allotter the most according to claim 5, it is characterised in that: the quantity of described bar seam (2) is 2-8, is distributed in the tube wall top of central canal (1), and its length direction is the most consistent with central canal (1).
Overflow type gas-liquid allotter the most according to claim 6, it is characterised in that: the two ends that are shaped as of described bar seam (2) are in polygon or ellipse in the middle of arc-shaped.
Overflow type gas-liquid allotter the most according to claim 7, it is characterised in that: described inlet opening (5) is distributed in central canal (1) and is positioned on the tube wall between bar seam (2) and spout hole (4), and quantity is 4-16.
Overflow type gas-liquid allotter the most according to claim 8, it is characterised in that: described inlet opening (5) generally circular in shape, or oval, or polygon, or circular with polygon combination.
Overflow type gas-liquid allotter the most according to claim 9, it is characterized in that: the quantity of described spout hole (4) is 2-8, being distributed in the tube wall bottom of main body tube (3), being shaped as of spout hole (4) is semicircle with the combining form of rectangle or trapezoidal or circular or oval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521122494.7U CN205495549U (en) | 2015-12-31 | 2015-12-31 | Overflowing type gas -liquid distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521122494.7U CN205495549U (en) | 2015-12-31 | 2015-12-31 | Overflowing type gas -liquid distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205495549U true CN205495549U (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521122494.7U Expired - Fee Related CN205495549U (en) | 2015-12-31 | 2015-12-31 | Overflowing type gas -liquid distributor |
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| CN (1) | CN205495549U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107287610A (en) * | 2017-07-07 | 2017-10-24 | 浙江嘉化能源化工股份有限公司 | A kind of high electric density low power consumption electrolysis cells slot device and its gas-liquid separating method |
| CN113070002A (en) * | 2021-03-03 | 2021-07-06 | 中国石油化工股份有限公司 | Gas-liquid distribution equipment |
| CN113101875A (en) * | 2020-01-13 | 2021-07-13 | 中国石油天然气集团有限公司 | Gas-liquid distributor |
| CN114849266A (en) * | 2022-05-07 | 2022-08-05 | 浙江镇田机械有限公司 | Hypergravity centrifugal separator capable of improving separation efficiency |
| CN115106023A (en) * | 2021-03-17 | 2022-09-27 | 中国石油化工股份有限公司 | Gas-liquid two-phase reactor, application thereof and hydrocarbon oil hydrogenation method |
-
2015
- 2015-12-31 CN CN201521122494.7U patent/CN205495549U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107287610A (en) * | 2017-07-07 | 2017-10-24 | 浙江嘉化能源化工股份有限公司 | A kind of high electric density low power consumption electrolysis cells slot device and its gas-liquid separating method |
| CN107287610B (en) * | 2017-07-07 | 2024-01-12 | 浙江嘉化能源化工股份有限公司 | High-electric-density low-electricity consumption electrolytic cell device and gas-liquid separation method thereof |
| CN113101875A (en) * | 2020-01-13 | 2021-07-13 | 中国石油天然气集团有限公司 | Gas-liquid distributor |
| CN113101875B (en) * | 2020-01-13 | 2022-10-04 | 中国石油天然气集团有限公司 | Gas-liquid distributor |
| CN113070002A (en) * | 2021-03-03 | 2021-07-06 | 中国石油化工股份有限公司 | Gas-liquid distribution equipment |
| CN113070002B (en) * | 2021-03-03 | 2022-10-14 | 中国石油化工股份有限公司 | Gas-liquid distribution apparatus |
| CN115106023A (en) * | 2021-03-17 | 2022-09-27 | 中国石油化工股份有限公司 | Gas-liquid two-phase reactor, application thereof and hydrocarbon oil hydrogenation method |
| CN115106023B (en) * | 2021-03-17 | 2024-04-02 | 中国石油化工股份有限公司 | Gas-liquid two-phase reactor, application thereof and hydrocarbon oil hydrogenation method |
| CN114849266A (en) * | 2022-05-07 | 2022-08-05 | 浙江镇田机械有限公司 | Hypergravity centrifugal separator capable of improving separation efficiency |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20191231 |