CN100340331C - Diffuser - Google Patents
Diffuser Download PDFInfo
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- CN100340331C CN100340331C CNB200510068652XA CN200510068652A CN100340331C CN 100340331 C CN100340331 C CN 100340331C CN B200510068652X A CNB200510068652X A CN B200510068652XA CN 200510068652 A CN200510068652 A CN 200510068652A CN 100340331 C CN100340331 C CN 100340331C
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Abstract
The present invention discloses a diffuser which comprises a cylinder body, a bottom board, an outer conical cylinder, a cover board and an inner conical cylinder, wherein the cylinder body is tightly connected with the bottom board forming a ring board structure; the middle of the ring board is provided with the outer conical cylinder; the conical tip is downwards arranged; the outer conical cylinder is connected with the bottom board into a whole; the axial lines of the inner conical cylinder and the outer conical cylinder are the same; a ring space is formed between the inner conical cylinder and the outer conical cylinder; the upper edge of the inner conical cylinder is higher than that of the outer conical cylinder; flow guiding ports are arranged in the corresponding positions of the conical casing bodies of the inner conical cylinder and the outer conical cylinder; the cover board is arranged on the upper part of the inner conical cylinder; a gap is arranged between the cover board and the upper edge of the inner conical cylinder. Compared with the prior art, the diffuser of the present invention has the advantages of simple structure and convenient installation, has the functions of decrease of fluid impulse force, fluid dispersion and full mix of a gas phase and a liquid phase and is used for various reactors and other devices for various mixed feed of gas and liquid, such as petroleum hydrocarbon hydrogenation reactors, etc.
Description
Technical field
The present invention relates to a kind of fluid dispersing apparatus, be applicable to that fluid is when the small bore basin enters the basin, heavy in section, enforcement is subdued impulse force, fluid and is disperseed and gas-liquid mixed, especially a kind ofly is used for fluid when entering hydrogenation reactor, subdues the equipment of impulse force, dispersing fluid and gas-liquid mixed.
Background technology
The gas-liquid fluid that enters hydrogenation reactor has pressure height, the fast characteristics of flow velocity, if this fluid directly is injected on the distribution plate, can produce strong wallop, influences the safe handling of distribution plate.In order to slow down the gas-liquid fluid to the impact of distribution plate, fluid tentatively is distributed to whole reactor cross section and disturbance gas-liquid fluid, promotes two-phase to mix, need usually diffuser is set at the reactor inlet place.Common diffuser is by head-type, pan diffuser, rod-pulling type diffuser, sideshake cast diffuser, the tapered diffuser of multilayer, multitube diffuser and the double-layer porous template diffuser of cone etc., as the 13rd～15 page of described various inlet diffusers of " petrochemical equipment technology " 1995-01 " development of hydrogenation reactor inner member ".The diffuser of the above-mentioned type has different characteristics, all exists not enough: though that the head-type diffuser can be provided with is a plurality of realizing that fluid more evenly disperses, but have the shortcoming that flow velocity is fast, impulsive force is big; Disc type, multitube, sideshake cast diffuser structure are simple and can satisfy and subtract the strategically important place and ask, but do not have angle of flare; Multilayer awl diffuser fluid dispersion effect meets the demands, but structure is complicated, and angle of flare is less, and the Gas-Liquid Dispersion function is poor.At present, using is that multilayer is bored diffuser more widely.
Summary of the invention
At the deficiencies in the prior art, but the invention provides a kind of slowing down fluid impulse force simple in structure, easy for installation, dispersing fluid and make the well-mixed diffuser of gas-liquid two-phase, especially a kind ofly be used for fluid when entering hydrogenation reactor, subdue the equipment of impulse force, dispersing fluid and gas-liquid mixed.
Diffuser of the present invention comprises cylindrical shell, base plate, external conical-tube, cover plate and inner conical-tube, cylindrical shell and base plate close-coupled, base plate is a ring-plane structure, external conical-tube is set in the middle of the ring flat-plate, the awl point downwards, external conical-tube and ring flat-plate close-coupled, connect as one with base plate, external conical-tube comprises conical shell, inner conical-tube comprises conical shell, and inner conical-tube is identical with the axis of external conical-tube, forms annular space between inner conical-tube and the external conical-tube, the inner conical-tube upper edge is higher than the external conical-tube upper edge, offers flow-guiding mouth on the conical shell correspondence position of inner conical-tube and external conical-tube; Cover plate places inner conical-tube top, is provided with the gap between cover plate and inner conical-tube upper edge.
A kind of concrete structure of diffuser of the present invention is: comprise parts such as cylindrical shell, base plate, external conical-tube, cover plate, inner conical-tube.Cylindrical shell and base plate close-coupled, base plate are ring-plane structure, and external conical-tube is set in the middle of the ring flat-plate, and the awl point is downward, and external conical-tube and ring flat-plate close-coupled connect as one with base plate, and external conical-tube mainly comprises conical shell, can also establish cylindrical shell at the conical shell top; Inner conical-tube mainly comprises conical shell, also can establish cylindrical shell at the top, and inner conical-tube is identical with the axis of external conical-tube, and the cone angle unanimity forms annular space between inner conical-tube and the external conical-tube; The inner conical-tube upper edge is higher than the external conical-tube upper edge, and inner conical-tube can be fixed on external conical-tube, base plate or the cylindrical shell by connector; The appearance and size of inner conical-tube is offered flow-guiding mouth less than external conical-tube inner surface physical dimension on the conical shell correspondence position of inner conical-tube and external conical-tube; Cover plate places inner conical-tube top, and area is greater than the inner conical-tube aperture area, more preferably greater than outer cone cylindrical shell aperture area, less than the cartridge openings area; Cover plate can be fixed on inner conical-tube, cylindrical shell or the base plate by connector, is provided with the gap between cover plate and inner conical-tube upper edge.
Cylindrical shell is top hatch frame, is preferably circular cylinder body.The external conical-tube upper edge preferably exceeds base plate, so that form stabilizing solution stream.The flow-guiding mouth of offering on the conical shell of external conical-tube and inner conical-tube can be a different shape, as circular hole, polygonal hole, spiral line type flow-guiding mouth etc., and preferred spiral line type flow-guiding mouth, the flow-guiding mouth position is a correspondence position on the conical shell vertical line.
The present invention is directed to logistics is the operating mode characteristics of gas, liquid two-phase coexistent, by cover plate and base plate are set, constitutes the baffle plate of opposing fluid impact, to subdue the fluid impulse force; Inner conical-tube and external conical-tube are set, and the appearance and size of inner conical-tube is less than external conical-tube inner surface physical dimension, and the upper edge of inner conical-tube housing is higher than the upper edge of external conical-tube housing, formation liquid phase flow channel between inner conical-tube and external conical-tube; Cover plate is set, and places inner conical-tube top, cover plate and inner conical-tube upper edge are provided with annular gap, for gas phase provides flow channel; Equal corresponding flow-guiding mouth on the conical shell of inner conical-tube and external conical-tube, under the effect of gas-liquid two-phase different in flow rate, gas phase produces liquid phase brushes effect, gives the bigger dispersion of liquid phase and raises the angle, finishes dispersion process.In addition, gas phase also makes the broken stream of liquid phase, is convenient to disperse.But the present invention's slowing down fluid impulse force simple in structure, easy for installation, dispersing fluid and gas-liquid two-phase is fully mixed.Can satisfy fluid when entering hydrogenation reactor, subdue the requirement of impulse force, dispersing fluid and gas-liquid mixed.
Description of drawings
Fig. 1 is the structural representation of a kind of modular design of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.As shown in Figure 1, structure of the present invention is combined by cylindrical shell 1, base plate 2, external conical-tube 3, cover plate 4, inner conical-tube 7, upper connector 5 and following connector 6.
External conical-tube 3 is made of conical shell and cylindrical shell; Its axis is identical with cylindrical shell 1 axis, and connects as one with cylindrical shell 1, base plate 2; Offer the spiral line type flow-guiding mouth on the conical shell, spiral line type flow-guiding mouth cut surface and axis angle are acute angle, right angle or obtuse angle, and spiral line type flow-guiding mouth width is 0.1mm～50mm, preferred 5mm.Inner conical-tube 7 is made of conical shell and cylindrical shell; Inner conical-tube 7 is identical with the axis of external conical-tube 3, the cone angle unanimity, and the appearance and size of inner conical-tube is less than external conical-tube inner surface physical dimension; Offer the spiral line type flow-guiding mouth on the conical shell of inner conical-tube, its cut surface is consistent with the cut surface of the number of turns with external conical-tube, and the spiral line type flow-guiding mouth width of offering on the inner conical-tube is 0.1mm～40mm, preferred 3mm; The upper edge of inner conical-tube cylindrical shell is higher than the upper edge of external conical-tube cylindrical shell, its difference in height 10mm～200mm, preferred 80mm.Link to each other by connector 6 down between inner conical-tube and external conical-tube.Cover plate 4 is for circular slab or have short shell ring to make the element structure that skirt and circular slab are composited; Cover plate places inner conical-tube top, links together with upper connector 5 between the two; Cover plate and inner conical-tube upper edge are provided with the gap, clearance distance 5mm～200mm, preferred 110mm.The cover plate position is preferably lower than the cylindrical shell upper edge.Above-mentioned parameter is not construed as limiting the invention, and concrete structure and parameter can be carried out specific design by this area general knowledge according to unit scale and fluid composition and property and be determined.
Cover plate and base plate constitute the baffle plate of resisting fluid impact, subdue the fluid impulse force; The appearance and size of inner conical-tube is less than external conical-tube inner surface physical dimension, and the upper edge of inner conical-tube cylindrical shell is higher than the upper edge of external conical-tube cylindrical shell, formation liquid phase flow channel between inner conical-tube and external conical-tube; Cover plate places inner conical-tube top, is provided with the gap with the inner conical-tube upper edge, for gas phase provides flow channel; All offer the spiral line type flow-guiding mouth on the conical shell of inner conical-tube and external conical-tube, constitute the discrete areas of gas-liquid fluid respectively.
During work, the fluid by gas-liquid two-phase constitutes with higher flow velocity, in cylindrical shell upper end inflow diffuser, has constituted the baffle plate of resisting fluid impact by cover plate and base plate, and herein, direction of flow changes, and realizes the target of subduing the fluid impulse force.Because the profile of inner conical-tube and external conical-tube is similar figures, the appearance and size of inner conical-tube is less than external conical-tube inner surface physical dimension, and the upper edge of inner conical-tube cylindrical shell is higher than the upper edge of external conical-tube cylindrical shell, formation liquid phase flow channel between inner conical-tube and external conical-tube; Liquid phase is through this passage and be opened in and all offer the spiral line type flow-guiding mouth on the conical shell of external conical-tube and flow out diffuser; Simultaneously, gas phase is by the gap on cover plate and inner conical-tube top, inflow inner conical-tube inside, because the spiral line type flow-guiding mouth of offering on the conical shell of inner conical-tube and external conical-tube, with the cut surface unanimity of the number of turns, therefore, the flow channel of gas-liquid two-phase is corresponding, and because of gas-liquid two-phase flow velocity difference, gas phase produces the effect of brushing to liquid phase, give the bigger dispersion of liquid phase and raise the angle, finish dispersion process; Gas phase also makes the broken stream of liquid phase, is convenient to disperse.In addition, above-mentionedly brush, broken flowing through in the journey, gas-liquid two-phase is fully mixed.In a word, by inside and outside awl tube is set, gas-liquid two-phase is shunted; Offer the spiral line type flow-guiding mouth on inside and outside awl tube, gas-liquid two-phase is realized reallocation, thereby reaches the diffusion purpose.
Claims (10)
1, a kind of diffuser, it is characterized in that comprising cylindrical shell, base plate, external conical-tube, cover plate and inner conical-tube, cylindrical shell and base plate close-coupled, base plate is a ring-plane structure, external conical-tube is set in the middle of the ring flat-plate, the awl point downwards, external conical-tube and ring flat-plate close-coupled connect as one with base plate, and external conical-tube comprises conical shell, inner conical-tube comprises conical shell, inner conical-tube is identical with the axis of external conical-tube, forms annular space between inner conical-tube and the external conical-tube, and the inner conical-tube upper edge is higher than the external conical-tube upper edge, offer flow-guiding mouth on the conical shell correspondence position of inner conical-tube and external conical-tube, the flow-guiding mouth position is a correspondence position on the conical shell vertical line; Cover plate places inner conical-tube top, is provided with the gap between cover plate and inner conical-tube upper edge.
2, according to the described diffuser of claim 1, it is characterized in that described external conical-tube case top establishes cylindrical shell, the inner conical-tube case top is established cylindrical shell.
3,, it is characterized in that described inner conical-tube is consistent with the cone angle of external conical-tube according to the described diffuser of claim 1.
4,, it is characterized in that described inner conical-tube is fixed on external conical-tube, base plate or the cylindrical shell by connector according to the described diffuser of claim 1; The cover plate area is greater than the inner conical-tube aperture area, less than the cartridge openings area; Cover plate is fixed on inner conical-tube, cylindrical shell or the base plate by connector.
5,, it is characterized in that described cover plate area is greater than outer cone cylindrical shell aperture area according to the described diffuser of claim 4.
6, according to the described diffuser of claim 1, it is characterized in that described cylindrical shell is the circular cylinder body structure of top opening, the flow-guiding mouth of offering on the conical shell of external conical-tube and inner conical-tube is circular hole, polygonal hole or spiral line type flow-guiding mouth.
7, according to the described diffuser of claim 6, it is characterized in that the spiral line type flow-guiding mouth width of offering on the conical shell of described external conical-tube is 0.1mm～50mm, the spiral line type flow-guiding mouth width of offering on the conical shell of inner conical-tube is 0.1mm～40mm.
8,, it is characterized in that the upper edge of described inner conical-tube is higher than external conical-tube upper edge 10mm～200mm according to the described diffuser of claim 1.
9,, it is characterized in that described cover plate is circular slab or has short shell ring to make the element structure that skirt and circular slab are composited according to the described diffuser of claim 1; Cover plate and inner conical-tube upper edge are provided with the gap, clearance distance 5mm～200mm.
10,, it is characterized in that described external conical-tube upper edge exceeds base plate according to the described diffuser of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510068652XA CN100340331C (en) | 2004-10-29 | 2005-04-27 | Diffuser |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410050770 | 2004-10-29 | ||
| CN200410050770.3 | 2004-10-29 | ||
| CNB200510068652XA CN100340331C (en) | 2004-10-29 | 2005-04-27 | Diffuser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1765484A CN1765484A (en) | 2006-05-03 |
| CN100340331C true CN100340331C (en) | 2007-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510068652XA Active CN100340331C (en) | 2004-10-29 | 2005-04-27 | Diffuser |
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|---|---|
| CN (1) | CN100340331C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101766978B (en) * | 2008-12-31 | 2011-11-30 | 中国石油化工股份有限公司 | Material-flow mixing and dispersing device |
| KR100940184B1 (en) | 2009-01-20 | 2010-02-04 | 주식회사 옴니벤트 | Motorized diffuser |
| FR2978679B1 (en) * | 2011-08-03 | 2014-01-17 | Total Raffinage Marketing | DISPENSER PLATE OF A GAS AND A LIQUID, REACTOR EQUIPPED WITH SUCH A TRAY AND USE OF SAID PLATEAU. |
| CN106268525B (en) * | 2015-06-05 | 2019-05-21 | 中国石油化工股份有限公司 | Diffuser and fixed bed reactors |
| CN108097179B (en) * | 2016-11-25 | 2021-12-07 | 中国石油化工股份有限公司 | Grid type impact-reducing flow-equalizing disc |
| CN108097178B (en) * | 2016-11-25 | 2021-06-04 | 中国石油化工股份有限公司 | Tooth weir type impact reduction and flow equalization disc |
| CN106517468A (en) * | 2016-12-15 | 2017-03-22 | 江苏诺斯特拉环保科技有限公司 | Decoloration flocculant wetting tank |
| CN110013799A (en) * | 2019-03-05 | 2019-07-16 | 江苏中特特种金属装备有限公司 | A kind of hydrogenator for petroleum and petrochemical industry |
| CN113753935B (en) * | 2021-08-12 | 2023-08-01 | 贵州省化工研究院 | Method and device for co-producing nano barium sulfate and nano calcium carbonate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2167776Y (en) * | 1993-06-24 | 1994-06-08 | 中国石油化工总公司 | Co-flow downward gas-liquid mixture chill box |
| CN1144613A (en) * | 1996-06-12 | 1997-03-12 | 韩春来 | High-grade nourishing chewing gum and its making method |
| CN2448440Y (en) * | 2000-09-28 | 2001-09-19 | 中国石油化工集团公司 | Vortex type hydrogen cooling box |
| EP1147808A1 (en) * | 2000-04-17 | 2001-10-24 | Institut Francais Du Petrole | Multifunctional partial assembly which ensures the contact, distribution and heat and/or material exchange in at least one gaseous phase and one liquid phase |
-
2005
- 2005-04-27 CN CNB200510068652XA patent/CN100340331C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2167776Y (en) * | 1993-06-24 | 1994-06-08 | 中国石油化工总公司 | Co-flow downward gas-liquid mixture chill box |
| CN1144613A (en) * | 1996-06-12 | 1997-03-12 | 韩春来 | High-grade nourishing chewing gum and its making method |
| EP1147808A1 (en) * | 2000-04-17 | 2001-10-24 | Institut Francais Du Petrole | Multifunctional partial assembly which ensures the contact, distribution and heat and/or material exchange in at least one gaseous phase and one liquid phase |
| CN2448440Y (en) * | 2000-09-28 | 2001-09-19 | 中国石油化工集团公司 | Vortex type hydrogen cooling box |
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| Publication number | Publication date |
|---|---|
| CN1765484A (en) | 2006-05-03 |
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