CN2568308Y - Riser type No.3 stage cyclone separator - Google Patents
Riser type No.3 stage cyclone separator Download PDFInfo
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- CN2568308Y CN2568308Y CN 02245967 CN02245967U CN2568308Y CN 2568308 Y CN2568308 Y CN 2568308Y CN 02245967 CN02245967 CN 02245967 CN 02245967 U CN02245967 U CN 02245967U CN 2568308 Y CN2568308 Y CN 2568308Y
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- dust
- cyclone separator
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- baffle plate
- inlet pipe
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Abstract
The utility model discloses a vertical pipe type third stage cyclone separator for the regeneration of gas-solid separation of regenerated flue gas of fluid catalytic cracking and catalytic cracker of a petrochemical plant. The vertical pipe type third stage cyclone separator is composed of a casing, a separation single pipe, an upper layer of baffle plate, a lower layer of baffle plate, an inner hanging cylinder connected with the casing and the baffle plates of two layers, a gas inlet pipe, an exhaust opening, a dust exhaust opening, etc., wherein the separation single pipe is vertically arranged on the upper layer of baffle plate and the lower layer of baffle plate. One dust prevention predissociation structure is added on the lower end of the gas inlet pipe in order to prevent the instability and deformation of the lower baffle plate, protect the normal operation of a smoke machine, reduce the abrasion of the separation single pipe and prevent dust from polluting environment when a large handling capacity and regeneration system cyclone has reduced separation efficiency or is out of work. The utility model comprises a preseparator composed of a guide plate, a dust collection ring plate, etc., one predissociation dust bin composed of a dust hopper and a grid mesh, and one once current limit dust exhaust pipe composed of a dust exhaust pipe and a once current limit injector, wherein the predissociation structure together with the separation single pipe is totally fixed on the baffle plates with the upper layer and the lower layer, and the baffle plates with the two layers are fixed on the inner hanging cylinder, wherein the upper baffle plate is upward convex, and the lower baffle plate is in a downward concave structure.
Description
Technical field
The utility model belongs to the gas-solid separation equipment of petrochemical industry, more specifically say so oil plant fluid catalytic cracking and cat-cracker is used for isolating from regenerated flue gas the equipment of catalyst dust, is mainly used in the high-temperature flue gas energy-recuperation system of petrochemical industry fluid catalytic cracking and cat-cracker.
Technical background
Third level cyclone separator is the visual plant of petrochemical industry fluid catalytic cracking and cat-cracker.Because the separation single tube of vertical pipe type third level cyclone separator is more large-minded 40～50% than the separation single tube of horizontal tube third level cyclone separator, and install, maintenance is convenient, so use more extensive.
In recent years because China's fluid catalytic cracking technology development is very fast, raw material is mixed the increasing of residual oil ratio, the rising of regeneration temperature and the maximization of unit capacity, make vertical pipe type third level cyclone separator some new problems occur: the one, because the increase of regenerated flue gas amount, make the diameter of third level cyclone separator become bigger, two arch large baffle diameters that separate single tube are installed are also become bigger.Simultaneously, because the gas distributing chamber pressure of third level cyclone separator is greater than dust storage chamber pressure, lower clapboard is pressure-bearing internals of bearing negative pressure.When flue-gas temperature is brought up to after 700 ℃ by 650 ℃, the yield of stainless steel material will descend more than 30%, this makes lower clapboard be easy to take place local buckling's distortion, separating the single tube cylindrical shell tilts, what have has pulled out cylindrical shell with the single tube guider, even the whole upset of lower clapboard, cause third level cyclone separator entirely ineffective.Lower clapboard thickness has reached 40 millimeters at present, not only causes manufacturing cost to strengthen, and brings many difficulties for the equipment moulding.The 2nd, because the poor qualityization of fluidized catalytic cracker raw material, amount of burnt is bigger, the operation of some devices is very unstable, the time and regenerator one takes place, secondary cyclone decrease in efficiency or inefficacy, a large amount of catalyst pour in third level cyclone separator, present vertical pipe type third level cyclone separator is difficult to adapt to this operating mode, usually cause the catalyst concn of third level cyclone separator outlet to strengthen, thereby grind away the cigarette machine, make a large amount of dust enter contaminated environment in the atmosphere, or, reduced in the life-span of third level cyclone separator because of the increase of the import catalyst concn separation single tube that weares and teares.China's separation single tube newly developed in recent years particularly, the processing air quantity of every pipe has all improved 20～25%, and the wear-resisting problem of single tube is more apparent outstanding.
Summary of the invention
The purpose of this utility model is by the improvement to vertical pipe type cyclone separator structure commonly used, by increasing the structural shape of a dust preseparator and improvement lower clapboard, improve the force-bearing situation of lower clapboard, avoid the lower clapboard buckling deformation, simultaneously when third level cyclone separator import catalyst concn is higher, can alleviate the wearing and tearing that separate single tube, prolong its service life, improve the third level cyclone separator adaptive capacity that operation changes to fluidized catalytic cracker thereby reach, particularly when regenerative system one, when secondary cyclone decrease in efficiency or short term failure, make third level cyclone separator still can guarantee the normal operation of cigarette machine and prevent dust polluting environment.
For achieving the above object, the technical solution adopted in the utility model is: this vertical pipe type third level cyclone separator by housing, separate single tube separates single tube with vertical placement upper and lower two-layer dividing plate, connect and hang in housing and the two-layer dividing plate tin and air inlet pipe, expansion joint, exhaust outlet, dust-exhausting port and a dust preseparating structure composition.This dust preseparating structure comprises that is given a separator, a pre-separation ash storehouse of being made up of dust hopper and aperture plate, and a current limliting dust flue of being made up of dust flue and current limliting nozzle.Preseparator, pre-separation Hui Cang and a current limliting dust flue all are fixed on the upper and lower two-layer dividing plate together with separating single tube, and wherein upper spacer is convex structure, and lower clapboard is to recessed structure, hangs on the tube in upper and lower two-layer dividing plate all is fixed on.
Preseparator is positioned at the lower end of air inlet pipe, its structure has two kinds of patterns of A, B: A type preseparator is made up of guide plate, control of dust ring flat-plate and base plate, and guide plate is curved, divides 2～8, be fixed between base plate and the air inlet pipe, the channel cross-section between two guide plates is convergent shape; The Type B preseparator is made up of guide plate, control of dust ring flat-plate, newel and bell, and guide plate divides 2～8 twist, is fixed between newel and the air inlet pipe, and bell is positioned at air inlet pipe bottom.The aperture plate in pre-separation ash storehouse is arranged on the top of dust hopper, and the top of dust hopper is cylindrical, and the bottom is taper.A current limliting nozzle of a current limliting dust flue is fixed on the end of dust flue, is positioned on the dust-exhausting port of third level cyclone separator.
Because the utility model vertical pipe type third level cyclone separator is compared with existing vertical pipe type third level cyclone separator, increased a dust preseparating structure, and lower clapboard is to recessed structural shape, the not steady or I and II cyclone separation system decrease in efficiency when the operation of fluidized catalytic cracker regenerator, when a large amount of catalyst pour in this cyclone separator, preseparator can be removed thick particle, guarantees to separate the separating effect of single tube, thereby prolongs the service life of separating single tube and cigarette machine.Simultaneously,, bear malleation because lower clapboard adopts recessed structure, more much better than the lower clapboard stress of existing epirelief, can improve the clapboard stress situation, avoid the dividing plate buckling deformation, guarantee the safe operation of the third level cyclone separator of high throughput.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Description of drawings
Fig. 1 is the structural representation of the utility model vertical pipe type third level cyclone separator
Fig. 2 is the A type preseparation arrangement schematic diagram of the utility model vertical pipe type third level cyclone separator
Fig. 3 is the Type B preseparation arrangement schematic diagram of the utility model vertical pipe type third level cyclone separator
The specific embodiment
As shown in Figure 1, the utility model vertical pipe type third level cyclone separator is by housing 5, separate single tube 1 and fixing vertical place separate single tube 1 on, following two-layer dividing plate 4 and 2, connect housing 5 with last, down two-layer dividing plate 4 and 2 in hang tube 3 and air inlet pipe 7, expansion joint 8, exhaust outlet 6 and dust-exhausting port 21 are formed, increase a dust preseparating structure in the lower end of air inlet pipe 7 simultaneously, it comprises a preseparator 9, a pre-separation ash storehouse 22 of forming by dust hopper 11 and aperture plate 10, and a current limliting dust flue 23 of forming by dust flue 12 and current limliting nozzle 13; Preseparator 9, pre-separation ash storehouse 22 all is fixed on upper and lower dividing plate 4 and 2 together with separating single tube 1 with a current limliting dust flue 23, wherein upper spacer 4 is convex structure, and lower clapboard 2 is to recessed structure, and upper and lower dividing plate 4 and 2 hangs in all being fixed on the tube 3.
Preseparator 9 is positioned at the lower end of air inlet pipe, and its structure has two kinds of patterns of A, B.
As shown in Figure 2, A type preseparator is by guide plate 14, control of dust ring flat-plate 15 and base plate 16 are formed, guide plate 14 is curved, divides the 2-8 sheet, is fixed between base plate 16 and the air inlet pipe 7, channel cross-section between two guide plates is convergent shape, the dust-contained airflow that axially enters preseparator will be changed into tangential direction, be quickened to penetrate by the passway, and control of dust ring flat-plate 15 can drop to solid particle entrapment in the pre-separation ash storehouse.
As shown in Figure 3, the Type B preseparator is by guide plate 17, control of dust ring flat-plate 18, newel 19 and bell 20 are formed, and guide plate 17 divides 2～8 twist, be fixed between newel 19 and the air inlet pipe 7, bell 20 is positioned at air inlet pipe 7 bottom, and axially dust-contained airflow becomes direction of rotation through spiral guide plate, is quickened to penetrate by bell, dust is trapped in the pre-separation ash storehouse by the control of dust ring flat-plate because of effect of inertia.
As shown in Figure 1, the aperture plate 10 in pre-separation ash storehouse 22 is arranged on the top of dust hopper 11, and the top of dust hopper 11 is cylindrical, and the bottom is taper.The lining fragment and the foreign material that fall into pre-separation ash storehouse after aperture plate can separate by preseparator filter, in order to avoid stop up current limliting nozzle 13 one time.
A current limliting nozzle 13 of a current limliting dust flue 23 is fixed on the end of dust flue 12, is positioned on the dust-exhausting port 21 of housing.A current limliting nozzle 13 is mainly used to control the air leakage amount of preseparator, and it is made by high abrasion resisting material.Air leakage amount is being carried the solid fines that pre-separation goes out secretly and is being penetrated by the current limliting nozzle, and this is to guarantee that the preseparator effect is necessary.Utilize cyclone separator inlet plenum pressure P 1 greater than dust storage chamber external pressure P2, the air-flow that the current limliting nozzle penetrates also has the effect of unobstructed housing dust-exhausting port.
The course of work of the utility model vertical pipe type cyclone separator is as follows: carry catalyst fines from the fluidized catalytic cracker regenerator, the high-temperature flue gas of lining fragment and foreign material, enter three through air inlet pipe 7 and revolve preseparator 9, remove the part dust and almost all enter inlet plenum again behind lining fragment, the foreign material.Because the space of inlet plenum is very big, almost is isobaric storehouse, some fine powders can also continue to settle down and flow in the preseparator ash storehouse 22, discharge from the housing dust-exhausting port by a current limliting dust discharge nozzle.Flue gas after the pre-separation enters and separates single tube 1, helps reducing the exhanst gas outlet concentration of cyclone separator.Enter the ash-laden gas that separates single tube 1 by inlet plenum, carry out cyclonic separation by separating single tube, flue gas after being purified is discharged through housing blast pipe 6 from collection chamber, and the catalyst solid particle of recovery falls into dust storage chamber, discharges through housing dust-exhausting port 21.Because the preseparating structure that the utility model adopted is simple, pressure drop is very low, generally is not more than 1.5KPa, can not bring tangible influence for the pressure drop of whole system.
Claims (5)
1. vertical pipe type third level cyclone separator, by housing (5), separate single tube (1) separate with vertical placement single tube (1) on, following two-layer dividing plate (4) and (2), connect housing (5) with last, hang tube (3) and an air inlet pipe (7) in following two-layer dividing plate (4) and (2), expansion joint (8), exhaust outlet (6) and dust-exhausting port (21) are formed, it is characterized in that having increased a dust preseparating structure in the lower end of air inlet pipe (7), it comprises a preseparator (9), a pre-separation ash storehouse (22) of forming by dust hopper (11) and aperture plate (10), and a current limliting dust flue (23) of forming by a dust flue (12) and a current limliting nozzle (13); Preseparator (9), pre-separation ash storehouse (22) all are fixed on upper and lower dividing plate (4) and (2) together with separating single tube (1) with a current limliting dust flue (23), wherein upper spacer (4) is convex, lower clapboard (21) is to recessed structure, hangs in upper and lower dividing plate (4) and (2) all are fixed on the tube (3).
2. vertical pipe type third level cyclone separator according to claim 1, it is characterized in that preseparator (9) is made up of guide plate (14), control of dust ring flat-plate (15) and base plate (16), guide plate (14) is curved, divide 2～8, be fixed between base plate and the air inlet pipe, the channel cross-section between two guide plates is convergent shape.
3. vertical pipe type third level cyclone separator according to claim 1, it is characterized in that preseparator (9) is made up of guide plate (17), control of dust ring flat-plate (18), newel (19) and bell (20), guide plate (17) twist, divide 2～8, be fixed between newel (19) and the air inlet pipe (7), bell (20) is positioned at air inlet pipe (7) bottom.
4. vertical pipe type third level cyclone separator according to claim 1 is characterized in that the aperture plate (10) in pre-separation ash storehouse (22) is arranged on the top of dust hopper (11), and the top of dust hopper (11) is cylindrical, and the bottom is taper.
5. vertical pipe type third level cyclone separator according to claim 1 is characterized in that a current limliting nozzle (13) of a current limliting dust flue (23) is fixed on the end of dust flue (12), is positioned on the dust-exhausting port (21) of housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02245967 CN2568308Y (en) | 2002-08-13 | 2002-08-13 | Riser type No.3 stage cyclone separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02245967 CN2568308Y (en) | 2002-08-13 | 2002-08-13 | Riser type No.3 stage cyclone separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2568308Y true CN2568308Y (en) | 2003-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02245967 Expired - Lifetime CN2568308Y (en) | 2002-08-13 | 2002-08-13 | Riser type No.3 stage cyclone separator |
Country Status (1)
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| CN (1) | CN2568308Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101590453B (en) * | 2008-05-29 | 2011-05-11 | 中国石油化工集团公司 | Third-level cyclone separator with large handling capacity |
| CN101992153B (en) * | 2009-08-24 | 2012-07-04 | 中国石油化工集团公司 | Large third-stage cyclone separator |
| CN105127017A (en) * | 2015-10-08 | 2015-12-09 | 中石化炼化工程（集团）股份有限公司 | Separation single tube used for third-level cyclone separator |
| US10758921B2 (en) | 2018-04-24 | 2020-09-01 | China University Of Petroleum-Beijing | Separation device |
| CN112156900A (en) * | 2020-08-21 | 2021-01-01 | 浙江百能科技有限公司 | Anti-sticking anti-blocking array type high-temperature multi-pipe cyclone dust removal device |
| CN114345017A (en) * | 2020-10-12 | 2022-04-15 | 北京星油科技有限公司 | Cyclone separator |
-
2002
- 2002-08-13 CN CN 02245967 patent/CN2568308Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101590453B (en) * | 2008-05-29 | 2011-05-11 | 中国石油化工集团公司 | Third-level cyclone separator with large handling capacity |
| CN101992153B (en) * | 2009-08-24 | 2012-07-04 | 中国石油化工集团公司 | Large third-stage cyclone separator |
| CN105127017A (en) * | 2015-10-08 | 2015-12-09 | 中石化炼化工程（集团）股份有限公司 | Separation single tube used for third-level cyclone separator |
| US10758921B2 (en) | 2018-04-24 | 2020-09-01 | China University Of Petroleum-Beijing | Separation device |
| CN112156900A (en) * | 2020-08-21 | 2021-01-01 | 浙江百能科技有限公司 | Anti-sticking anti-blocking array type high-temperature multi-pipe cyclone dust removal device |
| CN114345017A (en) * | 2020-10-12 | 2022-04-15 | 北京星油科技有限公司 | Cyclone separator |
| CN114345017B (en) * | 2020-10-12 | 2023-02-07 | 北京星油科技有限公司 | Cyclone separator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Anhui Beili Anyuan 21 No. 100101 Beijing Chaoyang District City Patentee after: Sinopec Engineering Incorporation Address before: 100011 Beijing City, Xicheng District, No. 67 Andrew Patentee before: Engrg Construction Co., SINOPEC |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120813 Granted publication date: 20030827 |