CN205613393U - Entry diffuser - Google Patents
Entry diffuser Download PDFInfo
- Publication number
- CN205613393U CN205613393U CN201620209838.6U CN201620209838U CN205613393U CN 205613393 U CN205613393 U CN 205613393U CN 201620209838 U CN201620209838 U CN 201620209838U CN 205613393 U CN205613393 U CN 205613393U
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- plate
- bullet
- liquid
- inlet diffuser
- barrel
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Abstract
The utility model discloses an entry diffuser, it includes cylindric last barrel, go up the top of barrel and install the flange, go up the bottom of barrel and install annular bottom plate, install the conical body in the inner chamber of last barrel, the conical body top is equipped with the apron, the bottom and the annular bottom plate sealing connection of conical body, be equipped with the strip seam on the lateral wall of conical body, the bottom of annular bottom plate is connected with the hollow cylindric top of barrel down, equipartition sideshake seam on the lateral wall of lower barrel, the bottom of barrel is connected with the tapered distribution board that spreads all over garrulous discharge orifice down, be equipped with the discoid liquid board that spatters in the below of conical body in the inner chamber of lower barrel, the periphery that spatters the liquid board is equipped with the triangle -shaped baffle, it passes through the several bracing piece and fixes on the tapered distribution board to spatter the liquid board. The utility model discloses the peak value and liquid phase bias flow degree of liquid phase along radial distribution has been reduced to improve the gas -liquid two -phase feeding cut the areal distribution at the reactor behind entry diffuser even degree, optimized entry diffuser's predistribution performance.
Description
Technical field
This utility model relates to petrochemical industry hydrogenation plant fixed bed reactors equipment technical field, specifically a kind of inlet diffuser of gas and liquid flowing type.
Background technology
In catalytic hydrogenation reaction device, first hydrogen, raw oil two-phase medium flow to material, then under raw oil catalyst action in reactor, complete a series of reaction with hydrogen, and the gas-liquid charging flowed has the advantages that pressure is high, flow velocity is fast.So, generally inlet porting bubbler at reactor inlet, its effect one is to be distributed on the whole cross section of reactor by the medium of entrance；Two is to eliminate the air-liquid medium vertical impact to top distribution plate；Three is to promote gas-liquid two-phase to mix by disturbance.Therefore in industrial processes, require that gas-liquid medium is after the effect of inlet diffuser, peak value, liquid phase bias current degree that liquid phase is radially distributed are the least, little to the impulsive force of lower section distribution plate, otherwise can affect the effect of catalyst and stable, the longtime running of device.Inlet diffuser also should possess simple in construction, be easily installed the features such as dismounting simultaneously.The usage amount of hydrogenation plant is continuously increased in recent years, and the scale of hydrogenation reactor also tends to maximize, and therefore performance and design thereof to inlet diffuser are had higher requirement.
Inlet diffuser common type has: (1) American Association oil company UOC type hydrogenation reactor inlet diffuser.This inlet diffuser is a kind of double-layer porous plate structure, and perforate size and density on two-layer orifice plate are different.Reaction medium is after upper cone body rectification, and throttling, collision effect through two-layer hole are diffused into whole reactor cross section up.This bubbler buffering effect is preferable, the spray area of liquid phase is bigger；But after this bubbler effect, easily there is bias current in liquid phase, and the effect of this bubbler second layer porous plate is inconspicuous.(2) bubbler that double-layer porous plate is combined with multilamellar cone.Gas-liquid charging medium is after the throttling buffering of two-layer porous plate, then the directive reactor cross section through three different cone structures.This bubbler good buffer effect, liquid phase bias current degree are little and liquid phase spray area is bigger；Weak point is that structure is complicated, and liquid phase radially maldistribution, liquid phase peak value is higher.(3) a kind of gas-liquid cocurrent flow inlet diffuser disclosed in Chinese patent CN201042663Y, this inlet diffuser is provided with the urceolus of cylinder, it is coaxial therewith being provided with the inner tube of cylinder in urceolus, lateral opening hole is uniformly offered on inner tube sidewall, inner cylinder top blind flange edge the most also has several gap slot, the lower section of inner tube bottom end outlet to be provided with one layer of stream breaker.Gas-liquid two-phase feeding is divided into two-way after entering this bubbler, and the cover plate perforate on cover plate of leading up to enters in inner tube, and another route gas phase carries liquid phase lateral opening hole from inner tube sidewall and enters in inner tube；Two-way fluid flows downward after colliding in inner tube and mixing, and is splashed on the stream breaker below inner tube bottom end outlet, and collision diffuses in whole reactor cross section.The shortcoming that this structure exists gas-liquid logistics mixed effect difference.
Utility model content
The purpose of this utility model is to provide a kind of inlet diffuser, and the peak value that the liquid phase existed to solve existing gas-liquid cocurrent flow inlet diffuser is radially distributed is higher, liquid phase bias current degree is relatively big, the problem of undercompounding.
For solving above-mentioned technical problem, technical solution adopted in the utility model is:
A kind of inlet diffuser, it includes columned upper shell, the top of upper shell is provided with flange, the bottom of upper shell is provided with annular bottom plate, the inner chamber of upper shell is provided with up-small and down-big, the bullet of open at both ends, the top of bullet is provided with solid cover-plate, the bottom of bullet is tightly connected with annular bottom plate, the sidewall of bullet is provided with several seams, the bottom of described annular bottom plate is connected with the top of the cylindric lower shell of hollow, uniform sideshake seam on the sidewall of lower shell, the bottom of lower shell is connected with the conical distribution plate spreading all over broken discharge orifice, in the inner chamber of lower shell, the lower section at bullet is provided with discoid splashing liquid plate, the plate face of splashing liquid plate is provided with several hole, the periphery of splashing liquid plate is provided with several triangular baffle, splashing liquid plate is fixed on conical distribution plate by several support bars.
As further improvement of the utility model, described upper shell, lower shell coincide with the centrage of bullet.
Further improving as of the present utility model, the top of described lower shell is tightly connected with annular bottom plate.
Further improving as of the present utility model, described cover plate is circular flat board or cone plate or arc, is welded in the top of bullet.
Further improving as of the present utility model, the quantity of described bar seam is 6-12, is distributed on the sidewall of bullet, and the length direction of bar seam is the most consistent with bullet, and what bar stitched is shaped as polygon or ellipse.
Further improving as of the present utility model, the quantity of described sideshake seam is 6-12, and length direction is axial consistent with lower shell, what sideshake stitched be shaped as polygon or oval or spiral yarn shaped.
Further improve as of the present utility model, generally circular in shape or the oval or polygon in the hole on described splashing liquid plate plate face or circular and polygonal combination.
Further improving as of the present utility model, the number of described triangular baffle is 10-20.
Further improve as of the present utility model, generally circular in shape or the oval or polygon of described broken discharge orifice or circular and polygonal combination.
This utility model provide a kind of simple in construction, easy for installation, can slowing down fluid impulsive force, dispersing fluid and make the well-mixed inlet diffuser of gas-liquid two-phase.
In use, Continuous Liquid Phase vertically down in upper shell inner chamber by the effect of being carried secretly of gravity inertial and gas phase, is impinged upon and sputters to surrounding on the cover plate of its internal cone body this utility model, and the flow direction of liquid phase changes, it is achieved the effect of abatement liquid phase impulse force；After liquid phase completes preliminary shaping, wherein a road liquid phase is directly inhaled by gas phase volume, is stitched entrainment of the bar pouring in bullet, enters inside cone；Another road liquid phase impinges upon on upper shell inwall obliquely, then flow down on annular bottom plate, set up liquid level, the effect of carrying secretly is swept along so that small part liquid phase is reverse along the outer inclined-plane of cone the most upwards forms local helical eddy current in upper shell, and is finally flowed into inside cone by bar seam due to gas phase.Two-way liquid phase flows downward after colliding in bullet with gas phase and mix after being flowed out by annular bottom plate perforate, impact on splashing liquid plate, a part is flow to lower floor by the hole on splashing liquid plate plate face, another part is obstructed and turns to backward four sides to flow out, under the throttling action of triangular baffle four dissipate spill, by lower shell sideshake stitch flow out bubbler.Being flushed on conical distribution plate by the medium under splashing liquid plate current, a part is flowed out by broken discharge orifice, and another part is stopped by conical distribution plate and baffling flows out from surrounding sideshake seam after turning to.Gas-liquid two-phase realizes reallocation in aperture, side, thus reaches mixing, the purpose of diffusion, is finally uniformly dispersed in the reactor cross section to bubbler, and gas-liquid charging is also sufficiently mixed and buffers.
Use this utility model, there is following beneficial effect:
(1) this utility model makes liquid be divided into two-way entrance inlet diffuser by being provided with the bullet of bar seam, can reduce the pressure of gas-liquid charging, improve gas-liquid mixed effect；By bullet cover plate, splashing liquid plate, three cushioning effects of conical distribution plate, slow down the impact of gas-liquid charging, reduce the trend of reactor center gas-liquid distribution Relatively centralized as much as possible, reduce peak value and liquid phase bias current degree that liquid phase is radially distributed, thus improve the uniformity coefficient that gas-liquid two-phase feeding is distributed after inlet diffuser in reactor cross section, optimize the predistribution performance of inlet diffuser；
(2) this utility model makes liquid phase be subject to shock throttling action to sputter to surrounding by arranging sideshake seam, splashing liquid plate and conical distribution plate on the sidewall of lower shell, enhances the effect that liquid phase broken stream atomization mixes with gas phase, improves liquid phase spray area；
(3) in this utility model on bullet between bar seam and annular bottom plate space is precipitable, impurity in accumulator portion feed stream, play certain filtration；
(4) this utility model simple in construction, it is easy to installing/dismounting；
(5) this utility model liquid phase spray area, radially distribute peak value, bias current degree, and the aspect such as pressure drop, buffering effect all has certain superiority, enables reactor steady operation, improves the service life of catalyst.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model；
In figure: 1, upper shell, 2, flange, 3, bullet, 4, cover plate, 5, bar seam, 6, annular bottom plate, 7, splashing liquid plate, 8, hole, 9, triangular baffle, 10, support bar, 11, lower shell, 12, sideshake seam, 13, conical distribution plate, 14, broken discharge orifice.
Detailed description of the invention
Below in conjunction with the accompanying drawings technical scheme described in the utility model is described in further detail.
nullA kind of inlet diffuser as shown in Figure 1，It includes columned upper shell 1，The top of upper shell 1 is provided with flange 2，The bottom of upper shell 1 is provided with annular bottom plate 6，The inner chamber of upper shell 1 is provided with up-small and down-big、The bullet 3 of open at both ends，The top of bullet 3 is provided with solid cover-plate 4，The bottom of bullet 3 is tightly connected with annular bottom plate 6，The sidewall of bullet 3 is provided with several seams 5，The bottom of annular bottom plate 6 is connected with the top of the cylindric lower shell 11 of hollow，Uniform sideshake seam 12 on the sidewall of lower shell 11，The bottom of lower shell 11 is connected with the conical distribution plate 13 spreading all over broken discharge orifice 14，In the inner chamber of lower shell 11, the lower section at bullet 3 is provided with discoid splashing liquid plate 7，The plate face of splashing liquid plate 7 is provided with several hole 8，The periphery of splashing liquid plate 7 is provided with several triangular baffle 9，Splashing liquid plate 7 is fixed on conical distribution plate 13 by several support bars 10.
Upper shell 1, lower shell 11 coincide with the centrage of bullet 3.
The top of lower shell 11 is tightly connected with annular bottom plate 6.
Cover plate 4 is circular flat board or cone plate or arc, is welded in the top of bullet 3.
The quantity of bar seam 5 is 6-12, is distributed on the sidewall of bullet 3, and the length direction of bar seam 5 is the most consistent with bullet 3, bar stitch 5 be shaped as polygon or ellipse.
The quantity of sideshake seam 12 is 6-12, and length direction is axial consistent with lower shell 11, sideshake stitch 12 be shaped as polygon or oval or spiral yarn shaped.
Generally circular in shape or the oval or polygon in the hole 8 on splashing liquid plate 7 plate face or circular and polygonal combination.
The number of triangular baffle 9 is 10-20.
Generally circular in shape or the oval or polygon of broken discharge orifice 14 or circular and polygonal combination.
This utility model in use, carried secretly by gravity inertial and gas phase and acted on vertically down into upper shell 1 by Continuous Liquid Phase, and impinges upon to surrounding sputtering on the cover plate 4 of its internal cone body 3, and the flow direction of fluid changes, it is achieved the effect of abatement fluid impulse force.Liquid phase is after preliminary shaping, and wherein a road liquid phase is directly inhaled by gas phase volume, stitched 4 entrainment of the bar pouring in bullet 3, enters bullet 3 internal；Another road liquid phase impinges upon on upper shell 1 inwall obliquely, then flow down and set up liquid level on annular bottom plate 6, the effect of carrying secretly is swept along due to gas phase, small part liquid phase is made the most upwards to form local helical eddy current in upper shell 1 along the outer inclined-plane of bullet 3, and finally by bar seam 5 inflow bullets 3 inside.Two-way liquid phase flows downward after colliding with gas phase and mix in bullet 3 after being flowed out by annular bottom plate 6 center, impact on splashing liquid plate 7, a part is flow to lower floor by the hole 8 on splashing liquid plate 7 plate face, another part is obstructed and turns to backward four sides to flow out, dissipated by triangular baffle 9 throttling action four and spill, by sideshake seam 12 outflow bubbler.The medium flowed down by splashing liquid plate 7 is flushed on conical distribution plate 13, and a part is flowed out by broken discharge orifice 14, and another part is stopped by conical distribution plate 13 and baffling stitches 12 outflows from the surrounding sideshake of lower shell 11 after turning to.Gas-liquid two-phase stitches at sideshake and realizes reallocation at 12, thus reaches the purpose of diffusion, is finally uniformly dispersed in the reactor cross section to bubbler, and gas-liquid charging is also sufficiently mixed and buffers.
Compared with prior art, this utility model bubbler have simple in construction, easy for installation, can slowing down fluid impulsive force, dispersing fluid and make the well-mixed effect of gas-liquid two-phase.
Claims (9)
- null1. an inlet diffuser，It includes columned upper shell (1)，The top of upper shell (1) is provided with flange (2)，The bottom of upper shell (1) is provided with annular bottom plate (6)，The inner chamber of upper shell (1) is provided with up-small and down-big、The bullet (3) of open at both ends，The top of bullet (3) is provided with solid cover-plate (4)，The bottom of bullet (3) is tightly connected with annular bottom plate (6)，The sidewall of bullet (3) is provided with several seams (5)，It is characterized in that: the bottom of described annular bottom plate (6) is connected with the top of the cylindric lower shell (11) of hollow，Uniform sideshake seam (12) on the sidewall of lower shell (11)，The bottom of lower shell (11) is connected with the conical distribution plate (13) spreading all over broken discharge orifice (14)，In the inner chamber of lower shell (11), the lower section at bullet (3) is provided with discoid splashing liquid plate (7)，The plate face of splashing liquid plate (7) is provided with several hole (8)，The periphery of splashing liquid plate (7) is provided with several triangular baffle (9)，Splashing liquid plate (7) is fixed on conical distribution plate (13) by several support bars (10).
- A kind of inlet diffuser the most according to claim 1, it is characterised in that: described upper shell (1), lower shell (11) coincide with the centrage of bullet (3).
- A kind of inlet diffuser the most according to claim 1 and 2, it is characterised in that: the top of described lower shell (11) is tightly connected with annular bottom plate (6).
- A kind of inlet diffuser the most according to claim 3, it is characterised in that: described cover plate (4) be circular flat board or conical plate or arc, is welded in the top of bullet (3).
- A kind of inlet diffuser the most according to claim 4, it is characterized in that: the quantity of described bar seam (5) is 6-12, it is distributed on the sidewall of bullet (3), bar seam (5) length direction the most consistent with bullet (3), bar stitch (5) be shaped as polygon or ellipse.
- A kind of inlet diffuser the most according to claim 4, it is characterized in that: the quantity of described sideshake seam (12) is 6-12, length direction is axial consistent with lower shell (11), sideshake seam (12) be shaped as polygon or oval or spiral yarn shaped.
- A kind of inlet diffuser the most according to claim 4, it is characterised in that: generally circular in shape or the oval or polygon in the hole (8) on described splashing liquid plate (7) plate face or circular and polygonal combination.
- A kind of inlet diffuser the most according to claim 4, it is characterised in that: the number of described triangular baffle (9) is 10-20.
- A kind of inlet diffuser the most according to claim 4, it is characterised in that: generally circular in shape or the oval or polygon of described broken discharge orifice (14) or circular and polygonal combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620209838.6U CN205613393U (en) | 2016-03-18 | 2016-03-18 | Entry diffuser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620209838.6U CN205613393U (en) | 2016-03-18 | 2016-03-18 | Entry diffuser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205613393U true CN205613393U (en) | 2016-10-05 |
Family
ID=57032034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620209838.6U Expired - Fee Related CN205613393U (en) | 2016-03-18 | 2016-03-18 | Entry diffuser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205613393U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108097178A (en) * | 2016-11-25 | 2018-06-01 | 中国石油化工股份有限公司 | A kind of tooth weir formula, which subtracts, rushes equal flow table |
| 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 |
| CN109473194A (en) * | 2018-11-12 | 2019-03-15 | 中国原子能科学研究院 | A kind of decaying cylinder for Deep Pool Low Temperature Heating Reactor |
| CN110302724A (en) * | 2019-08-12 | 2019-10-08 | 海南汉地阳光石油化工有限公司 | A kind of production system of rubber filler |
| CN111558344A (en) * | 2020-05-25 | 2020-08-21 | 中国石油化工股份有限公司 | Gas-liquid mixing distribution device |
| EP3747536A1 (en) * | 2019-06-03 | 2020-12-09 | Indian Oil Corporation Limited | Inlet diffuser for fixed-bed reactors |
-
2016
- 2016-03-18 CN CN201620209838.6U patent/CN205613393U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108097178A (en) * | 2016-11-25 | 2018-06-01 | 中国石油化工股份有限公司 | A kind of tooth weir formula, which subtracts, rushes equal flow table |
| 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 |
| CN109473194A (en) * | 2018-11-12 | 2019-03-15 | 中国原子能科学研究院 | A kind of decaying cylinder for Deep Pool Low Temperature Heating Reactor |
| CN109473194B (en) * | 2018-11-12 | 2024-05-14 | 中国原子能科学研究院 | Attenuation tube for deep water tank type low-temperature heat supply stack |
| EP3747536A1 (en) * | 2019-06-03 | 2020-12-09 | Indian Oil Corporation Limited | Inlet diffuser for fixed-bed reactors |
| CN110302724A (en) * | 2019-08-12 | 2019-10-08 | 海南汉地阳光石油化工有限公司 | A kind of production system of rubber filler |
| CN111558344A (en) * | 2020-05-25 | 2020-08-21 | 中国石油化工股份有限公司 | Gas-liquid mixing distribution device |
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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 |
Granted publication date: 20161005 Termination date: 20200318 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |