CN2396883Y - Conical cyclone gas distributing machine - Google Patents
Conical cyclone gas distributing machine Download PDFInfo
- Publication number
- CN2396883Y CN2396883Y CN99230073.8U CN99230073U CN2396883Y CN 2396883 Y CN2396883 Y CN 2396883Y CN 99230073 U CN99230073 U CN 99230073U CN 2396883 Y CN2396883 Y CN 2396883Y
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- Prior art keywords
- gas
- frustum
- gas passage
- deflector
- height
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000004458 analytical method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 239000007791 liquid phase Substances 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 238000009826 distribution Methods 0.000 description 15
- 239000007788 liquid Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 239000012071 phase Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001503991 Consolida Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
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- Gas Separation By Absorption (AREA)
Abstract
The utility model relates to a conical cyclone gas distributing machine, which is a conical platform with neither upper bottom nor lower bottom. A conical surface is provided with a plurality of gas passages, and part or all of the gas passages are provided with gas guide boards. One longitudinal side of the gas guide board is connected with edges of the gas passages, and folded inward the conical platform to form an included angle of 20-70 DEG with a tangential surface of a connection side. The conical cyclone gas distributing machine of the utility model has the advantages of small pressure drop, good gas distributing effect, easy gas-liquid phase shunt, entrainment elimination and simple structure.
Description
The utility model relates to tower and reactor parts, specifically, is the feasible uniform property of the flow velocity of gas phase on the entire equipment cross section better gas distributor that enters tower or reactor.
Along with the maximization day by day of Chemical Manufacture, large diameter tower and reactor continue to bring out, rice surplus the diameter that has has reached ten.Tower and reactor for major diameter (φ is more than 2000), in case the air inlet initial distribution is inhomogeneous, mass transfer, heat transfer and reaction effect in the equipment certainly will be influenced, pulsation and temperature runaway, the partial penetration of beds and the decline significantly of inactivation and knockout tower mass-transfer efficiency of gas-liquid reactor can be caused when serious.Therefore, both at home and abroad the research and development of chemical industry equipment air inlet initial distribution are rather paid attention in recent years, developed the straight pipe with holes formula, multiple air inlet initial distribution devices such as straight tube baffle-type, tangential bugle formula, single tangential circulation type, biserial vane type.But the distribution of gas effect of these distributors is all undesirable, drawback such as also existing of having, pressure drop height, entrainment be serious.In order further to strengthen the distribution effect of gas, Glitsch company has developed two inlets circulation type air inlet distributor, and its version is seen Fig. 1, and remain but use the result to show: the tower central gas stream is on the high side; Huan Tabi district air-flow is on the low side, and the air-flow wraparound easily stirs the tower bottom liquid layer deficiencies such as forming serious entrainment when flowing.University Of Tianjin has developed radiant type air inlet distributor in the recent period, and its version is seen Fig. 2, though this distributor can make distribution of gas comparatively even, but pressure drop is big, complex structure, and cost is higher, and when being entrained with liquid phase in the gas phase, it is comparatively difficult to realize that gas-liquid is separated.
The purpose of this utility model is, provides that a kind of pressure drop is little, distribution of gas is effective, gas-liquid is shunted mutually easily, can be eliminated entrainment, and cone spiral-flow type gas distributor simple in structure.
The technical solution of the utility model is as follows:
A kind of cone spiral-flow type air inlet distributor that is used for tower and reactor, it is based on as shown in Figure 3 thin-walled frustum, frustum is concentric with knockout tower or reactor apparatus, the major diameter of frustum is similar to device diameters, satisfy matching requirements, angle α=20～75 of the conical surface and equipment axis °, preferred α=30～60 °.The frustum height H was both relevant with tower diameter D, and was relevant with the air inlet pipe diameter d again, general H=(0.3～1.5) D, preferred H=(0.4～1.0) D, H=(0.5～10) d.Upper and lower end face of frustum and equipment axis normal, the external diameter of larger diameter end is slightly less than the equipment internal diameter, and the needs that equipment is installed should be satisfied in the gap between the two.
Have several along the circumferential direction uniform gas passages on the conical surface.The quantity of general gas passage is 3～24, and preferred quantity is 5～12, needs to decide according to device diameters and air inflow.Gas passage can be rectangle, trapezoidal or parallelogram etc.Channel width direction is consistent with circumferencial direction, width L=(0.1～0.5) d, and preferred value is L=(0.15～0.25) d, when passage was trapezoidal, width L referred to the mean value at the trapezoidal upper and lower end, angle β=60～90 of base and waist °.The high h=of passage (0.2～0.9) H, preferred value is h=(0.4～0.8) H, needs to determine according to the situation of air inflow.On all or part of passage, be provided with deflector, when part is provided with, the ratio that has or not deflector can be 1: 2,1: 1,2: 1, the setting of deflector should be along the circumferential direction uniform, when the gas passage quantity ratio that is provided with and is not provided with deflector is 2: 1, it is one group that Ying Yiyou---nothing---has three gas passages of deflector, and each group is along the circumferential direction uniform.Deflector can be a rectangle, trapezoidal or by rammed circular arc of rectangle etc.Deflector height h
1Equate width L with h
1=(0.8～1.5) L, preferred value is L
1=(0.9～1.2) L often gets L
1=L.The connected mode of deflector and gas passage is seen Fig. 4.Its manufacture method is: when opening gas passage on frustum, keep a certain longitudinal edge and do not cut, turnover and form the deflector of required angle in frustum then; After also deflector can being made separately, welding (or bonding etc.) on a certain long limit of gas passage.Angle γ=20～70 of deflector and fillet tangent plane °, preferred γ=30～60 °.Deflector is along the setting of (or contrary) clockwise, and concrete form is seen Fig. 4.
The material of gas distributor can be metallic plate, engineering plastics or Inorganic Non-metallic Materials.When using metallic plate, can put in order coiled sheet plate weldering system, or adopt the piecemeal welding to make.Distribution of gas and redistributor when the utility model can be used as equipment top, middle part and bottom air inlet, when being used as the use of air inlet distributor, the center line of the gas passage of certain band water conservancy diversion plate washer along short transverse should be aimed in the air inlet pipe axle center.When gas upwards flowed, the larger diameter end of frustum was last, and sawtooth 2 can be opened in the lower edge of frustum smaller diameter end, the general high H of sawtooth
1=(0～0.3) d or H
1=(0～0.2) H.The gear tip clearance of sawtooth is apart from S=(0.5～2) H
1, uniform along this end face circumferencial direction.When gas flowed downward, larger diameter end was then following.The frustum larger diameter end should be fixed with equipment wall surface, with 3～12 bearing diagonals distributor and equipment are fixed with one under the principle of gas passage avoiding, bearing diagonal one end links to each other with the distributor middle part, the other end is fixed on the appts wall, with the angle of equipment wall surface be 30～45 °, support along the circumferential direction uniform.Also can 3～12 bearings be set in the distributor bottom in case of necessity, bearing is along the circumferential direction uniform, except that the effect with support distribution device, also can make positioning action to distributor.When using base, the distributor top is provided with a plurality of along the circumferential direction uniform location-plates.
Cone circulation type gas distributor of the present utility model has following characteristics:
1. most of gas evenly enters in the distributor along the distributor periphery, utilizes the flaring structure of runner to make gas uniform on whole cross section, and does not have the fluid flow dead of distributors such as two inlets circulation type, and the distribution of gas is effective.
2. when gas upwards flows, lower from the distributor smaller diameter end gas flow rate upwards of turning back, thereby can not cause bottom liquid is not stirred the phenomenon that causes entrainment.
3. for the liquid phase of carrying secretly in the air inlet, there is small part to fling,, assembles the back and fall because effect of inertia impinges upon on the deflector to the gas passage of being with the water conservancy diversion plate washer.The liquid phase of collection at large tangentially enters in the distributor with air-flow, flow section enlarges behind the distributor because of gas enters, axially and radially the equal flow speed value in the air inlet pipe of flow velocity has bigger room and time to make drop carry out gravity in air-flow and separates with centrifugal sedimentation; Most of fluid at first will turn to along the limit wall and flow, and the part drop is got rid of to wall by centrifugal force, and part impinges upon the distributor outer wall and is captured.The drop that the end is captured is when entering the gas passage of band deflector, and situation is identical with aforementioned analysis.When entering the gas passage of not being with deflector, owing to be along wall stream into, and be subjected to the fluid impact of the inlet channel of contiguous band deflector, can not fling, but flow and realize that gas-liquid is separated with other fluid to equipment center.Simultaneously, the different fluid of multiply flow direction collides mutually the droplet polymerization is grown up, and gas phase kinetic energy loses the whereabouts separation that also helps drop in collision.For above-mentioned reasons, the gas mist entrainment of this distributor is very little.
4. not with the gas passage of deflector, played preventing that gas from excessively rotating along wall, and generation is big along limit wall flow, along the little situation of center flow, the axial flow velocity that has further improved gas distributes.
5. because gas passage area is big, flow process is short, and behind the gas access arrangement all with the shunting of changing direction gradually of the mode of guiding, and the mode of employing flaring is extended to whole cross section gradually, so pressure drop is low, energy consumption is little.
6. this distributor is simple in structure, materials are few, manufacturing is easy to maintenance, cost is low.
Description of drawings:
The two inlets circulation type air inlet initial distribution device schematic diagram of accompanying drawing 1.Glitsch company;
The radiant type air inlet initial distribution device schematic diagram of accompanying drawing 2. band umbrella shape air deflectors;
Accompanying drawing 3. cone table spiral-flow type gas distributor structural representations, a. front view, b. vertical view;
The baffle arrangement schematic diagram of accompanying drawing 4. cone spiral-flow type gas distributors;
Among the figure: 1. frustum; 2. sawtooth; 3. gas admittance; 4. deflector.
Below further specify the utility model by example.
Embodiment one.Acetic acid-aqueous systems rectifying column is transformed, and adopts cone spiral-flow type gas distributor.Tower diameter D=3000mm, bottom inflow, air inlet pipe diameter d=1000mm, height H=the 1500mm of cone spiral-flow type gas distributor of design, angle α=20 of the conical surface and equipment axis °, the inlet channel number is 12, inlet channel 3 wide L=150mm, high h=1200mm, establish with the passage ratio of not establishing deflector be 2: 1, deflector 4 high h
1=1200mm, wide L
1=150mm, angle γ=30 that form with the fillet tangent plane °.Frustum 1 adopts 6 bearing diagonals, and the stainless steel manufacturing of SUS 317L is all used in frustum and support, and the frustum wall thickness is 10mm, is made by 6 assembly units welding.After adopting this distributor, make that the distribution situation of air inlet is greatly improved at the bottom of the tower, the gas phase skewness reduces to 32% by original 127%, thereby makes at the bottom of the tower acetic acid content bring up to 95% from 93%, and obvious raising is not seen in the pressure drop of full tower.
Embodiment two.Certain fixed bed catalytic reactor, diameter are D=3200mm, top air inlet, air inlet pipe diameter d=800mm.Before the transformation, the catalyst average life span is 7300 hours, adopts the height H=1200mm of cone spiral-flow type gas distributor, α=60 °, port number is 10, gas passage 3 wide L=200mm, high h=480mm, establish with the passage ratio of not establishing deflector be 1: 1, deflector 4 high h
1=480mm, wide L
1=200mm, angle γ=45 that form with the fillet tangent plane °, after adopting the utility model gas distributor, the utility model after, the gas phase distribution in air inlet distribution catalyst and bed cross section is obviously improved, the catalyst average life span prolongs 680～720 hours than before transforming, and economic benefit is obvious.
Claims (8)
1. cone spiral-flow type gas distributor, it is characterized in that it be one supreme, the frustum of going to the bottom (1), frustum (1) is concentric with knockout tower or reactor apparatus, the major diameter of frustum (1) is similar to device diameters, satisfy matching requirements, angle α=20～75 of the conical surface and equipment axis °, have a plurality of on the conical surface along the uniform gas passage (3) of frustum (1) circumferencial direction, all or part of gas passage is provided with deflector (4), deflector (4) is along the circumferential direction uniform, a longitudinal edge of deflector (4) is connected on the edge of gas passage (3) of frustum (1), and turns in frustum and analyse, and forms angle γ=20～70 ° with the fillet tangent plane.
2. according to right 1 described gas distributor, it is characterized in that the height H of frustum (1) and device diameters D satisfy following relation: H=(0.3～1.5) D.
3. gas distributor according to claim 1 is characterized in that the height H of frustum (1) and air inlet pipe diameter d satisfy following relation: H=(0.5～10) d.
4. gas distributor according to claim 1 is characterized in that having 3～24 on the conical surface of frustum (1).
5. gas distributor according to claim 4, the preferred amount that it is characterized in that gas passage (3) is 5～12.
6. gas distributor according to claim 1, it is characterized in that gas passage (3) is a rectangle, trapezoidal or parallelogram, there are the following L=of relation (0.1～0.5) d in the width L of gas passage (3) and air inlet pipe diameter d, and there is following relation: h=(0.2～0.9) H in the height H of the height h of gas passage (3) and frustum (1).Distributor according to claim 1 is characterized in that it and equipment are that concentric is fixed.
7. gas distributor according to claim 1 is characterized in that deflector (4) is a rectangle or trapezoidal, its height h
1Equate width L with the height h of gas passage (3)
1=(0.8～1.5) L (L is the gas passage width).
8. gas distributor according to claim 1, when it is characterized in that gas distributor is used for equipment that gas upwards flows, the larger diameter end of frustum (1) is last, and smaller diameter end is down, and the lower edge of frustum (1) smaller diameter end has sawtooth (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99230073.8U CN2396883Y (en) | 1999-11-26 | 1999-11-26 | Conical cyclone gas distributing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99230073.8U CN2396883Y (en) | 1999-11-26 | 1999-11-26 | Conical cyclone gas distributing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2396883Y true CN2396883Y (en) | 2000-09-20 |
Family
ID=34019220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99230073.8U Expired - Fee Related CN2396883Y (en) | 1999-11-26 | 1999-11-26 | Conical cyclone gas distributing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2396883Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102039103B (en) * | 2009-10-19 | 2014-01-08 | 中国石油化工集团公司 | Gas-solid phase feed distributor |
| CN103566834A (en) * | 2012-07-30 | 2014-02-12 | 中国石油化工集团公司 | Gas-phase feeding diffuser |
| CN108067041A (en) * | 2016-11-11 | 2018-05-25 | 中国石油化工股份有限公司抚顺石油化工研究院 | Efficient defogging equipment |
| CN108067050A (en) * | 2016-11-11 | 2018-05-25 | 中国石油化工股份有限公司抚顺石油化工研究院 | A kind of high-efficiency multi-stage demister |
| CN108067044A (en) * | 2016-11-11 | 2018-05-25 | 中国石油化工股份有限公司抚顺石油化工研究院 | Defogging equipment |
| CN108067047A (en) * | 2016-11-11 | 2018-05-25 | 中国石油化工股份有限公司抚顺石油化工研究院 | A kind of efficient defogging equipment |
| CN108499239A (en) * | 2017-02-27 | 2018-09-07 | 中国石油化工股份有限公司 | A kind of high-efficiency multi-stage demister |
| CN108499228A (en) * | 2017-02-27 | 2018-09-07 | 中国石油化工股份有限公司 | A kind of multi-stage demister |
| CN108499226A (en) * | 2017-02-27 | 2018-09-07 | 中国石油化工股份有限公司 | A kind of high efficiency demister |
| CN108499227A (en) * | 2017-02-27 | 2018-09-07 | 中国石油化工股份有限公司 | A kind of efficient defogging equipment |
| CN108499225A (en) * | 2017-02-27 | 2018-09-07 | 中国石油化工股份有限公司 | A kind of defogging equipment |
-
1999
- 1999-11-26 CN CN99230073.8U patent/CN2396883Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102039103B (en) * | 2009-10-19 | 2014-01-08 | 中国石油化工集团公司 | Gas-solid phase feed distributor |
| CN103566834A (en) * | 2012-07-30 | 2014-02-12 | 中国石油化工集团公司 | Gas-phase feeding diffuser |
| CN103566834B (en) * | 2012-07-30 | 2015-11-25 | 中国石油化工集团公司 | A kind of gas-phase feed diffuser |
| CN108067047A (en) * | 2016-11-11 | 2018-05-25 | 中国石油化工股份有限公司抚顺石油化工研究院 | A kind of efficient defogging equipment |
| CN108067050A (en) * | 2016-11-11 | 2018-05-25 | 中国石油化工股份有限公司抚顺石油化工研究院 | A kind of high-efficiency multi-stage demister |
| CN108067044A (en) * | 2016-11-11 | 2018-05-25 | 中国石油化工股份有限公司抚顺石油化工研究院 | Defogging equipment |
| CN108067041A (en) * | 2016-11-11 | 2018-05-25 | 中国石油化工股份有限公司抚顺石油化工研究院 | Efficient defogging equipment |
| CN108067047B (en) * | 2016-11-11 | 2020-08-11 | 中国石油化工股份有限公司抚顺石油化工研究院 | High-efficient defogging equipment |
| CN108499239A (en) * | 2017-02-27 | 2018-09-07 | 中国石油化工股份有限公司 | A kind of high-efficiency multi-stage demister |
| CN108499228A (en) * | 2017-02-27 | 2018-09-07 | 中国石油化工股份有限公司 | A kind of multi-stage demister |
| CN108499226A (en) * | 2017-02-27 | 2018-09-07 | 中国石油化工股份有限公司 | A kind of high efficiency demister |
| CN108499227A (en) * | 2017-02-27 | 2018-09-07 | 中国石油化工股份有限公司 | A kind of efficient defogging equipment |
| CN108499225A (en) * | 2017-02-27 | 2018-09-07 | 中国石油化工股份有限公司 | A kind of defogging equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |