CN202478907U - Gas-liquid distributing device applied to boiling bed reactor - Google Patents
Gas-liquid distributing device applied to boiling bed reactor Download PDFInfo
- Publication number
- CN202478907U CN202478907U CN2012200422071U CN201220042207U CN202478907U CN 202478907 U CN202478907 U CN 202478907U CN 2012200422071 U CN2012200422071 U CN 2012200422071U CN 201220042207 U CN201220042207 U CN 201220042207U CN 202478907 U CN202478907 U CN 202478907U
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- tedge
- gas
- epimere
- stage casing
- rising tube
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Abstract
The utility model discloses a gas-liquid distributing device applied to a boiling bed reactor and solves the problems that damage is caused by collision between a check-reverse ball and a valve core and the check-reverse ball can not fall back to a sealing position fast to achieve sealing due to the fact that the check-reverse ball in an existing gas-liquid distributing device jumps up and down with gas-liquid flow. The gas-liquid distributing device applied to the boiling bed reactor is provided with a bubble cap (3), a rising tube (1) and the check-reverse ball (2). The rising tube is divided into a rising tube lower segment (11), a rising tube middle segment (12) and a rising tube upper segment from bottom to top. The rising tube upper segment is provided with a rising tube upper segment middle-lower portion opening hole (51) and a rising tube upper segment top opening hole (52). An inner cavity of the rising tube middle segment comprises a rising tube middle segment upper inner cavity, a throat-path (122) and a rising tube middle segment lower inner cavity (121) from top to bottom. When in the sealing position, the check-reverse ball is supported on a surface of the rising tube middle segment upper inner cavity. An air inlet hole (6) is arranged upward on a side wall of the rising tube middle segment in an inclining mode.
Description
Technical field
The utility model relates to a kind of gas-liquid distributor that is used for fluidized bed reactor.
Background technology
The gas-liquid-solid three-phase fluidized bed reactor has obtained extensive use in the course of reaction of field of petrochemical industry.For the very big course of reaction of reaction heat, use fluidized bed reactor can remove heat of reaction effectively, the isothermal operation of realization response device guarantees the normal operation of reactor.In fluidized bed reactor, gas-liquid distributor is to guarantee the equally distributed vitals of gas-liquid, directly affects the even running and the reaction efficiency of reactor.
U.S. Pat 4874583 has been introduced a kind of gas-liquid distributor that is used for fluidized bed reactor, is the bubble cap distributor, mainly is made up of parts such as bubble cap, tedge, reverse stopping ball and spools.The bottom of bubble cap cylindrical shell is provided with the bar seam, and tedge top and spool middle part are provided with fluid issuing, and the spool bottom is provided with valve seat.The bottom of tedge is provided with the orifice mixer that is used for gas-liquid mixed for having the gas-liquid premixed structure of air inlet duct (bar seam) in the tedge.A plurality of bubble cap distributors are arranged on the distribution grid equably.In use mainly there is following problem in this gas-liquid distributor: described gas-liquid mixed structure, especially orifice mixer are adopted in (1), though can play certain gas-liquid mixed effect, disconnected plug flow and pulsating flow appear in gas-liquid easily.And the top of valve core cavity is sealed, and enters into the reverse stopping ball top of floating, the gas-liquid of valve core cavity top dead can form the stream that circles round (gas-liquid is circled round mobile downwards).Therefore, reverse stopping ball can be in the gas-liquid logistics bob, cause the collsion damage of reverse stopping ball and spool.(2) reverse stopping ball is when normally floating the position, if gas-liquid charging interruption or pressure reduce, the slurries in the ebullated bed will get into the valve core cavity of reverse stopping ball below from fluid issuing; The reverse stopping ball sealing station that can not fall back rapidly because of below adverse current slurries instantaneous pressure is excessive is realized sealing.
Summary of the invention
The purpose of the utility model provides a kind of gas-liquid distributor that is used for fluidized bed reactor, thus with solve the existing existing reverse stopping ball of gas-liquid distributor can be in the gas-liquid logistics bob cause reverse stopping ball and spool collsion damage, the reverse stopping ball problems such as sealing station realization sealing that can not fall back rapidly.
For addressing the above problem, the technical scheme that the utility model adopts is: a kind of gas-liquid distributor that is used for fluidized bed reactor is provided with bubble cap, tedge, reverse stopping ball; The bottom of bubble cap cylindrical shell is provided with bubble cap bar seam; The bottom of tedge is provided with tedge bar seam, and tedge is provided with fluid issuing, forms the circular passage between the cylindrical shell of bubble cap and the tedge; It is characterized in that: tedge is divided into tedge hypomere, tedge stage casing and tedge epimere from bottom to top; Described circular passage is the cylindrical shell that is formed at bubble cap and the circular passage between the tedge epimere, described fluid issuing; Comprise middle and lower part perforate of tedge epimere and tedge epimere top drilling; The inner chamber in tedge stage casing is made up of inner chamber, cylindrical venturi and Frusto-conical tedge stage casing lower inner cavity on the Frusto-conical tedge of the inversion stage casing from top to bottom, is supported on when reverse stopping ball is in sealing station on the surface of inner chamber on the tedge stage casing, and the sidewall in tedge stage casing tilts to being provided with air admission hole.
Adopt the utility model, have following beneficial effect: (1) can make evenly mixing and mobile of gas-liquid, prevents disconnected plug flow and pulsating flow (seeing the explanation of this specification specific embodiment part for details).And; When reverse stopping ball floats, enter into the gas-liquid of top of chamber in reverse stopping ball top, the tedge epimere, can flow out (to the circular passage) through tedge epimere top drilling; Can not form the stream that circles round, thereby tedge epimere top drilling can make also Liquid Flow keep comparatively stablely.So, reverse stopping ball can be in the gas-liquid logistics bob, its suspended state is stable, can not cause the collsion damage of inner chamber on reverse stopping ball, tedge epimere inner chamber and the tedge stage casing.(2) reverse stopping ball is in when normally floating the position; If gas-liquid charging interruption or pressure reduce; The a part of slurries that get in the circular passage will have been offset the slurries excessive pressure of formed moment the tedge epimere inner chamber below tedge epimere middle and lower part perforate adverse current gets into reverse stopping ball from the tedge epimere inner chamber of tedge epimere top drilling adverse current entering reverse stopping ball top.Therefore, the reverse stopping ball sealing station that can fall back rapidly contacts with the surface of inner chamber on the tedge stage casing and to realize sealing.(3) top drilling of tedge epimere, the pressure in the time of can reducing the gas-liquid charging through the utility model gas-liquid distributor falls.
The gas-liquid distributor of the utility model, the gas-liquid diffusion area is wide, simple and reasonable, safe and reliable, long service life; Can be used for fluidized bed reactor, distribute the gas-liquid charging.
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further detailed explanation.The accompanying drawing and the specific embodiment do not limit the scope of the utility model requirement protection.
Description of drawings
Fig. 1 is the structural representation that the utility model is used for the gas-liquid distributor of fluidized bed reactor.
The specific embodiment
Referring to Fig. 1, the utility model is used for the gas-liquid distributor (abbreviating gas-liquid distributor as) of fluidized bed reactor, is provided with bubble cap 3, tedge 1, reverse stopping ball 2.The bottom of bubble cap 3 cylindrical shells is provided with bubble cap bar seam 72, and the bottom of tedge 1 is provided with tedge bar seam 71.Tedge 1 is divided into tedge hypomere 11, tedge stage casing 12 and tedge epimere 13 from bottom to top, forms circular passage 8 between the cylindrical shell of bubble cap 3 and the tedge epimere 13.Tedge epimere 13 is provided with tedge epimere middle and lower part perforate 51 and tedge epimere top drilling 52.The top of tedge 1 (that is top of tedge epimere 13) is provided with connecting plate 14; Connecting plate 14 is generally circle, is fixedly connected (for example welding together) with the top of tedge 1.Between the top board of bubble cap 3 and the connecting plate 14, can adopt modes such as welding, clamping or bolt and nut connection to be fixed together.Shown in Figure 1, adopt bolt and nut 4 to be fixed together between the top board of bubble cap 3 and the connecting plate 14, wherein screw rod is fixed on the connecting plate 14.
The inner chamber in tedge stage casing 12 is made up of inner chamber, cylindrical venturi 122 and Frusto-conical tedge stage casing lower inner cavity 121 on the Frusto-conical tedge of the inversion stage casing from top to bottom.(as shown in Figure 1) was supported on the surface of inner chamber on the tedge stage casing when reverse stopping ball 2 was in sealing station.
The cylindrical shell of bubble cap 3 is generally cylindrical shape, and tedge hypomere 11, tedge epimere 13 are tubular, and the outer surface in tedge stage casing 12 is a cylindrical so.Bubble cap 3, tedge hypomere 11, tedge stage casing 12 and tedge epimere 13, and inner chamber, venturi 122 and tedge stage casing lower inner cavity 121 on the tedge stage casing generally are coaxial settings.
The sidewall in tedge stage casing 12 tilts to being provided with air admission hole 6, is communicated with venturi 122.Air admission hole 6 is generally circular port, and diameter is generally 0.5～6 millimeter (being preferably 1～4 millimeter), and the angle β between the horizontal plane is generally 10～60 degree (being preferably 30 degree).Normally the short transverse along tedge stage casing 12 evenly is provided with 1～5 circle air admission hole 6, and every circle air admission hole 6 evenly is provided with 2～6 air admission holes 6.Air admission hole 6 preferably is provided with 2～4 circles, and every circle air admission hole 6 preferably is provided with 4 air admission holes 6.
Tedge epimere middle and lower part perforate 51 can be the hole of shapes such as rectangle, square, circle, ellipse, the hole of the semicircle that tedge epimere top drilling 52 can be rectangle, square, opening makes progress, the shapes such as half elliptic that opening makes progress.Tedge epimere middle and lower part perforate 51 shown in Figure 1 is perpendicular rectangle of putting with tedge epimere top drilling 52, and wherein tedge epimere top drilling 52 is opened to the top of tedge epimere 13.Tedge epimere middle and lower part perforate 51 is provided with 2～8 (preferably being provided with 4～6) respectively usually with tedge epimere top drilling 52, evenly distributes.The Breadth Maximum of tedge epimere middle and lower part perforate 51 and tedge epimere top drilling 52 should be less than the diameter of reverse stopping ball 2.The gross area of tedge epimere top drilling 52 is generally 20%～50% of tedge epimere middle and lower part perforate 51 gross areas.
The circular cone apex of inner chamber is generally 30～90 degree on the tedge stage casing, is preferably 45～65 degree.
General even 6～20 the bubble cap bars seams 72 that are provided with in the bottom of bubble cap 3 cylindrical shells, the width of bubble cap bar seam 72 is generally 1～5 millimeter (being preferably 1～3 millimeter).General even 2～8 the tedge bars seams 71 that are provided with in the bottom of tedge 1 (being the bottom of tedge hypomere 11) preferably are provided with 4～6 tedge bars seams 71.The width of tedge bar seam 71 is generally 2～5 millimeters.Tedge bar seam 71 is to become bubble to gas breaking with the main effect of bubble cap bar seam 72.
The gas-liquid distributor of a plurality of the utility model can adopt various methods commonly used, be fixed on the distribution grid 10 by equilateral triangle or square net arrangement mode, in the installing hole that wherein insert on the distribution grid 10 in tedge stage casing 12.The method that the utility model is recommended is, the top of 12 outer walls is provided with positioning boss 9 (its outward flange on horizontal plane be projected as circle) in the tedge stage casing, and the lower surface of positioning boss 9 is supported on the upper surface of distribution grid 10; The pipeline section that tedge stage casing 12 is positioned at positioning boss 9 belows inserts the installing hole on the distribution grid 10, with the installing hole tight fit, is fixed on the distribution grid 10 with this gas-liquid distributor with the utility model.
Below in conjunction with Fig. 1, the operation principle of the utility model gas-liquid distributor is described.During operate as normal, the inlet of liquid charging through tedge hypomere 11 bottoms gets into the inner chamber of tedge hypomere 11 and upwards flows, and lower inner cavity 121 gets into venturi 122 through the tedge stage casing, quickens to flow.Under the swabbing action of liquid charging, gas feed also gets into venturi 122 from a plurality of air admission holes 6; When flowing through air admission hole 6, gas feed is broken into a plurality of minute bubbles by suction.After the gas-liquid charging mixes in venturi 122, the inner chamber of inner chamber and tedge epimere 13 on the entering tedge stage casing.Reverse stopping ball 2 floats under the effect of gas-liquid logistics; Reverse stopping ball 2 floats the position normally, at tedge epimere 13 inner chambers in the bottom of tedge epimere top drilling 52 and the zone between tedge epimere middle and lower part perforate 51 tops.
Most of gas-liquid charging in entering tedge epimere 13 inner chambers is through tedge epimere middle and lower part perforate 51 entering circular passages 8.Few part gas-liquid charging again through tedge epimere top drilling 52 entering circular passages 8, has prevented the formation of circling round and flowing through the top of the entering of the gap between reverse stopping ball 2 and tedge epimere 13 inwalls tedge epimere 13 inner chambers.Tedge epimere middle and lower part perforate 51 is main thoroughfares that the gas-liquid charging in tedge epimere 13 inner chambers gets into circular passage 8.Enter into gas-liquid charging in the circular passage 8 and 8 bottom flow out, and upwards baffling gets into ebullated bed, reacts from the circular passage.
Reverse stopping ball 2 is in when normally floating the position, if gas-liquid charging interruption or pressure reduce, the slurries in the ebullated bed can get in the circular passage 8.Get into the inner chamber that circular passage 8 interior a part of slurries will get into the tedge epimere 13 of reverse stopping ball 2 tops from tedge epimere top drilling 52 adverse currents, can offset the slurries excessive pressure of formed moment from tedge epimere 13 inner chambers of tedge epimere middle and lower part perforate 51 adverse currents entering reverse stopping ball 2 belows.Reverse stopping ball 2 sealing station that can fall back rapidly contacts with the surface of inner chamber on the tedge stage casing and to realize sealing.Be sealed into linear sealing on reverse stopping ball 2 and the tedge stage casing between the surface of internal cavity.When reverse stopping ball 2 was in sealing station, its top was positioned at the below of tedge epimere middle and lower part perforate 51 bottoms.
Gas-liquid charging in the circular passage 88 bottom is flowed out and when upwards baffling gets into ebullated bed from the circular passage; Can prevent that the solid catalyst particle in the ebullated bed from depositing at the upper surface of distribution grid 10, forming the high temperature dead band, guarantees the fluidized bed reactor safe operation.
The gas-liquid distributor of the utility model is when work; Because the liquid charging of gas feed in a plurality of air admission holes 6 get into venturi 122 equably; So gas-liquid can evenly be mixed, and forms uniform biphase gas and liquid flow, prevent the appearance of disconnected plug flow and pulsating flow in venturi 122.Venturi 122 is main gas-liquid mixed sections.
When the gas feed amount was big, a part of gas feed was carried, is got into the inner chamber of tedge hypomeres 11 through tedge bar seam 71 by the liquid charging, carries out the gas-liquid premixed.Lower inner cavity 121 gets into venturi 122 through the tedge stage casing in gas-liquid charging after the premixed, mixes with another part gas feed that is got into by air admission hole 6.
When the utility model was used for petroleum refining boiling bed hydrogenation reactor, described gas feed was a hydrogen, and the liquid charging is a residual oil.
Claims (5)
1. gas-liquid distributor that is used for fluidized bed reactor; Be provided with bubble cap (3), tedge (1), reverse stopping ball (2); The bottom of bubble cap (3) cylindrical shell is provided with bubble cap bar seam (72); The bottom of tedge (1) is provided with tedge bar seam (71), and tedge (1) is provided with fluid issuing, forms the circular passage between the cylindrical shell of bubble cap (3) and the tedge (1); It is characterized in that: tedge (1) is divided into tedge hypomere (11), tedge stage casing (12) and tedge epimere (13) from bottom to top; Described circular passage is the cylindrical shell that is formed at bubble cap (3) and the circular passage (8) between the tedge epimere (13), described fluid issuing; Comprise tedge epimere middle and lower part perforate (51) and tedge epimere top drilling (52); The inner chamber in tedge stage casing (12) is made up of inner chamber, cylindrical venturi (122) and Frusto-conical tedge stage casing lower inner cavity (121) on the Frusto-conical tedge of the inversion stage casing from top to bottom, and reverse stopping ball (2) is supported on when being in sealing station on the surface of inner chamber on the tedge stage casing, and the sidewall of tedge stage casing (12) tilts to being provided with air admission hole (6).
2. the gas-liquid distributor that is used for fluidized bed reactor according to claim 1; It is characterized in that: air admission hole (6) is a circular port; Diameter is 0.5～6 millimeter; And the angle between the horizontal plane is 10～60 degree, along the short transverse of tedge stage casing (12) 1～5 circle air admission hole (6) is set, and every circle air admission hole (6) is provided with 2～6 air admission holes (6).
3. the gas-liquid distributor that is used for fluidized bed reactor according to claim 1 and 2; It is characterized in that: tedge epimere middle and lower part perforate (51) and tedge epimere top drilling (52) are perpendicular rectangle of putting; Be provided with 2～8 respectively, the gross area of tedge epimere top drilling (52) is 20%～50% of tedge epimere middle and lower part perforate (51) gross area.
4. the gas-liquid distributor that is used for fluidized bed reactor according to claim 1 and 2 is characterized in that: the circular cone drift angle of inner chamber is 30～90 degree on the tedge stage casing.
5. the gas-liquid distributor that is used for fluidized bed reactor according to claim 1 and 2 is characterized in that: the top of tedge stage casing (12) outer wall is provided with positioning boss (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200422071U CN202478907U (en) | 2012-02-03 | 2012-02-03 | Gas-liquid distributing device applied to boiling bed reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200422071U CN202478907U (en) | 2012-02-03 | 2012-02-03 | Gas-liquid distributing device applied to boiling bed reactor |
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| Publication Number | Publication Date |
|---|---|
| CN202478907U true CN202478907U (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200422071U Expired - Lifetime CN202478907U (en) | 2012-02-03 | 2012-02-03 | Gas-liquid distributing device applied to boiling bed reactor |
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| Country | Link |
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| CN (1) | CN202478907U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174339A (en) * | 2013-05-22 | 2014-12-03 | 中石化洛阳工程有限公司 | Gas distributor for slurry bed reactor |
| CN104226200A (en) * | 2013-06-11 | 2014-12-24 | 阿克森斯公司 | Fluid distribution device |
| CN104338493A (en) * | 2013-08-03 | 2015-02-11 | 中石化洛阳工程有限公司 | Gas-liquid distributor for fluidized bed reactor |
| CN104923131A (en) * | 2014-03-19 | 2015-09-23 | 中石化洛阳工程有限公司 | Gas-liquid distributor used for wood tar fluidized bed reactor |
| CN106268539A (en) * | 2015-05-21 | 2017-01-04 | 中国石化工程建设有限公司 | Gas-liquid distributor for fluidized bed reactor |
| CN104927901B (en) * | 2014-03-19 | 2017-05-24 | 中石化洛阳工程有限公司 | Gas-liquid distributor used for wood tar fluidized bed reactor |
| CN110064343A (en) * | 2019-04-26 | 2019-07-30 | 上海华畅环保设备发展有限公司 | The self-priming distributor of fluidized bed reactor eddy flow |
| CN112569874A (en) * | 2020-11-20 | 2021-03-30 | 上海竣铭化工工程设计有限公司 | Gas-liquid distributor for fluidized bed reactor and assembling method thereof |
-
2012
- 2012-02-03 CN CN2012200422071U patent/CN202478907U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174339A (en) * | 2013-05-22 | 2014-12-03 | 中石化洛阳工程有限公司 | Gas distributor for slurry bed reactor |
| CN104174339B (en) * | 2013-05-22 | 2016-08-10 | 中石化洛阳工程有限公司 | A kind of gas distributor for paste state bed reactor |
| CN104226200A (en) * | 2013-06-11 | 2014-12-24 | 阿克森斯公司 | Fluid distribution device |
| CN104338493A (en) * | 2013-08-03 | 2015-02-11 | 中石化洛阳工程有限公司 | Gas-liquid distributor for fluidized bed reactor |
| CN104923131A (en) * | 2014-03-19 | 2015-09-23 | 中石化洛阳工程有限公司 | Gas-liquid distributor used for wood tar fluidized bed reactor |
| CN104927901B (en) * | 2014-03-19 | 2017-05-24 | 中石化洛阳工程有限公司 | Gas-liquid distributor used for wood tar fluidized bed reactor |
| CN104923131B (en) * | 2014-03-19 | 2017-10-31 | 中石化洛阳工程有限公司 | Gas-liquid distributor for wood tar fluidized bed reactor |
| CN106268539A (en) * | 2015-05-21 | 2017-01-04 | 中国石化工程建设有限公司 | Gas-liquid distributor for fluidized bed reactor |
| CN110064343A (en) * | 2019-04-26 | 2019-07-30 | 上海华畅环保设备发展有限公司 | The self-priming distributor of fluidized bed reactor eddy flow |
| CN110064343B (en) * | 2019-04-26 | 2021-09-21 | 上海华畅环保设备发展有限公司 | Cyclone self-suction distributor of fluidized bed reactor |
| CN112569874A (en) * | 2020-11-20 | 2021-03-30 | 上海竣铭化工工程设计有限公司 | Gas-liquid distributor for fluidized bed reactor and assembling method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |