CN101862708B - Center tube fixing device of cyclone separator - Google Patents
Center tube fixing device of cyclone separator Download PDFInfo
- Publication number
- CN101862708B CN101862708B CN2010101089423A CN201010108942A CN101862708B CN 101862708 B CN101862708 B CN 101862708B CN 2010101089423 A CN2010101089423 A CN 2010101089423A CN 201010108942 A CN201010108942 A CN 201010108942A CN 101862708 B CN101862708 B CN 101862708B
- Authority
- CN
- China
- Prior art keywords
- center tube
- central tube
- fixing device
- nut
- curved plate
- Prior art date
- 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.)
- Active
Links
Images
Landscapes
- Cyclones (AREA)
Abstract
The invention provides a center tube fixing device of a cyclone separator, which relates to a center tube fixing device of a separator. The invention solves the problems of high manufacture cost, large welding work load, easy fixation deformation and difficult center tube replacement of the center tube fixing device in the existing cyclone separator. A plurality of round holes are uniformly distributed on the circumference on the tube wall of the upper end of the center rube, a screw bolt passes through corresponding round holes at the inner wall side of the center tube to be connected whit a screw nut arranged at the outer side of the center tube through screw threads, the screw nut is fixedly connected with the inner bending surface of an arc-shaped steel plate, the upper end and the lower end of the arc-shaped steel plate are respectively and fixedly connected with a separator rib plate and a separator top plate, a gap is formed between the end surface of one side of the screw nut near the center tube and the outer wall of the center tube, heat insulation fiber is filled in regions formed through being circulated between the lower end surface of the separator top plate and the upper end surface of the center tube 1 and between the outer wall of the center tube 1 and an furnace wall liner, and two hanging lugs are fixedly connected with the upper edge of the inner wall of the center tube. The invention has the advantages that the manufacture cost is low, the center tube is fixed and is not easy to deform, in addition, the replacement is convenient, and the in-site welding amount is small.
Description
Technical field
The present invention relates to a kind of separator center tube fixing device.
Background technology
Existing cyclone separator of circulating fluidized bed boiler center tube fixing device form is seen Fig. 1～Fig. 4; In order to guarantee central tube 1 fixing and maintenance level; On central tube 1, open square opening 1-1, fixing with bearing pin 2 more afterwards, and bearing pin 2 surfaces are contacted with square opening 1-1 surface closely.But in the actual production process, on central tube 1, open square opening 1-1 and will go up and carry out bore hole on the boring machine, milling machine processing will be gone up in the plane that bearing pin 2 contacts with central tube 1-1.In addition, for guaranteeing bearing pin 2 fixing-stables, on bearing pin 2, be with sleeve pipe 3 and also be fixed with holder 4, the structure of holder 4 is seen Fig. 5～Fig. 7.Holder 4 is formed by three block plate assembly weldings, and complex structure, and welded seam is too much makes the steel plate easy deformation.See that from integral body this fixture structure is complicated, the welding job amount is big, makes whole fixed structure easy deformation.Secondly, the excesssive gap of square opening 1-1 and bearing pin 2 makes central tube 1 under sweep of gases, be prone to produce vibration.In addition, because central tube 1 outer wall is washed away seriously, belong to consumable accessory; Need to change, this structure is changed very difficulty, need take plasma to cut off bearing pin 2; Remove the stiffening ring outside the central tube 1, pound the insulation of wall of central tube 1 top, also will remove remaining bearing pin 2 together with sleeve pipe 3 and holder 4 when reinstalling; The new fixture of one cover is installed, and installation difficulty is very big.
Summary of the invention
The purpose of this invention is to provide a kind of cyclone separator center tube fixing device, have the problem that cost is high, the welding job amount is big, fixedly easy deformation, central tube are changed difficulty to solve existing cyclone separator center tube fixing device.
The present invention solves the problems of the technologies described above the technical scheme of taking to be: fixture of the present invention is made up of a plurality of bolts, a plurality of nut, a plurality of curved plate and two hangers; Be uniformly distributed with on the circumference of the upper end barrel of central tube and have a plurality of circular ports; Bolt is passed corresponding circular port and is arranged on the central tube nut outside and is threaded by the inwall side of central tube; And the polished rod of bolt part and circular port matched in clearance; Each nut reclines with the interior flexure plane of curved plate mutually, and nut and curved plate are affixed, and the lower end of curved plate and separator top board are affixed; The upper end of curved plate and separator floor are affixed; Leave the slit between the outer wall of nut near side end face of central tube and central tube, and the slit is 12～25mm, is filled with insulation fibre between the lower surface of separator top board and the upper surface of central tube and in the zone that surrounds between the outer wall of central tube and the furnace wall lining; Two hangers are symmetrical set and affixed with the top edge of central tube inwall along the central axis of central tube, and bolt, nut and curved plate three's quantity is all identical.
The present invention has following beneficial effect: one, the central tube barrel adopts bore process to process circular port, and nut is fixed with curved plate, bolt outwards is screwed in the central tube to get final product again.Its make simple, cost is low, convenient fixing, labor content is little, the field Welding amount is few, the design accuracy requirement is satisfied in perforate easily.In addition, also can production efficiency and installation, maintenance efficient have been improved through regulating the circularity of bolt assurance central tube.Two, the present invention has realized that (central tube of original structure is that the form of need to adopt destroying is dismantled for the convertibility of central tube; Need during replacing all insulation materials and fixture complete removal around it; Construction is difficulty very), only need during dismounting bolt is backed out, after the perforate of flue backplate; Change after through the hanger on the central tube central tube being hung out, change very easy.
Description of drawings
Fig. 1 is the front view of existing cyclone separator center tube fixing device, and Fig. 2 is the vertical view of Fig. 1, and Fig. 3 is the A-A cutaway view of Fig. 1; Fig. 4 is the B-B cutaway view of Fig. 3, and Fig. 5 is the front view of the holder of existing cyclone separator center tube fixing device, and Fig. 6 is the left view of Fig. 5; Fig. 7 is the vertical view of Fig. 5; Fig. 8 is the front view of cyclone separator center tube fixing device of the present invention, and Fig. 9 is the vertical view of Fig. 8, and Figure 10 is the C-C cutaway view of Fig. 9; Figure 11 is the D-D cutaway view of Figure 10, and Figure 12 is the left view of curved plate.
The specific embodiment
The specific embodiment one: combine Fig. 8～Figure 12 that this embodiment is described, the fixture of this embodiment is made up of a plurality of bolt 5, a plurality of nut 6, a plurality of curved plate 7 and two hangers 8; Be uniformly distributed with on the circumference of the upper end barrel of central tube 1 and have a plurality of circular port 1-2; Bolt 5 is passed corresponding circular port 1-2 and is arranged on central tube 1 nut outside 6 and is threaded by the inwall side of central tube 1; And the polished rod of bolt 5 part and circular port 1-2 matched in clearance; Each nut 6 reclines with the interior flexure plane of curved plate 7 mutually, and nut 6 is affixed with curved plate 7, and the lower end of curved plate 7 and separator top board 9 are affixed; The upper end of curved plate 7 and separator floor 10 are affixed; Leave slit H between the outer wall of nut 6 near side end face of central tube 1 and central tube 1, and slit H is 12～25mm, is filled with insulation fibre 11 between the upper surface of the lower surface of separator top board 9 and central tube 1 and in the zone that surrounds between the outer wall of central tube 1 and the furnace wall lining; Two hangers 8 are symmetrical set and affixed with the top edge of central tube 1 inwall along the central axis of central tube 1, and bolt 5, nut 6 are all identical with curved plate 7 threes' quantity.
The specific embodiment two: combine Fig. 9 that this embodiment is described, the quantity of this embodiment bolt 5 is 8～12.So be provided with, purpose is in order to reinforce the center barrel, to keep out the scouring force that separator inlet place flue gas produces central tube.Other is identical with the specific embodiment one.
The specific embodiment three: combine Fig. 8 and Figure 10 that this embodiment is described, the slit H that leaves between the outer wall of the nut 6 of this embodiment near central tube 1 one side end faces and central tube 1 is 20mm.So be provided with, be used to fill in insulation fibre, central tube 1 both can be incubated, be beneficial to expansion again, central tube 1 dismounting is more prone to.Other is identical with the specific embodiment one or two.
The specific embodiment four: combine Figure 12 that this embodiment is described, the profile of the nut 6 of this embodiment is cylindrical.So be provided with, be convenient to processing and fixing with curved plate 7.Other is identical with the specific embodiment three.
The specific embodiment five: combine Fig. 6 that this embodiment is described, the nut 6 of this embodiment is welding with curved plate 7 affixed forms.Other is identical with the specific embodiment one.
The specific embodiment six: combine Figure 10 that this embodiment is described, the form that the lower end of the curved plate 7 of this embodiment and separator top board 9 are affixed and the upper end and the separator floor 10 affixed forms of curved plate 7 are welding.Other is identical with the specific embodiment one.
One, design philosophy of the present invention is:
1, make the square opening 1-1 that opens on the central tube 1 into circular port 1-2, bearing pin 2 usefulness bolts 5 are replaced, the polished rod of circular port 1-2 and bolt 5 partly adopts the mode of tolerance fit, the back-up ring 12 (seeing Fig. 1 and Fig. 8) in the cancellation original structure;
2, change the sleeve pipe in the original structure 3 into nut 6;
3, make the holder in the original structure 4 into curved plate 7, and direct hold-down nut 6;
4, two hangers 8 of central tube 1 inwall prewelding, and two hangers 8 are symmetrical set along the top edge of central tube 1 inwall, and lifting is used when being used to change central tube 1.
Two, correlation computations
1, the central tube swell increment is calculated:
The expansion direction of central tube is for radially expanding:
Swell increment formula: 1.2mm/ (hundred degrees centigrade in rice);
Central tube temperature: 900～1000 ℃;
Central tube radius: 0.685m;
Swell increment: Δ L=1.2x950/100x0.685=7.8mm (calculating) by mean temperature;
If the slit of leaving between the outer wall of nut near a side end face of central tube and central tube is 15mm, insulation fibre is filled in its slit.Central tube both can be incubated, be beneficial to expansion again, the central tube dismounting is more prone to.
2, bolt strained calculating:
Central tube gross weight: consider that pressing 600kg safely calculates;
Bolt quantity: 8;
The diameter of bolt: d=34mm;
Each is bolt strained: f=600/8=75kg;
Bolt allows Force Calculation:
Moment of flexure: б=M/W
x=PL/0.0982*d
3
＝75*10/(0.0982*3.4
3)＝194.3kg/cm
2
Shearing force: τ=P/S=P/ (π d
2/ 4)
＝75/(π*3.4
2/4)＝8.3kg/cm
2
Bolt strained: F=(б
2+ 3 τ
2)
0.5
＝(194.3
2+3*8.3
2)
0.5
＝194.8kg/cm
2
Each bolt power allowed to bear [f]=392kg/cm
2
Consider safety coefficient: [F]=[f]/k=392/2=196kg/cm
2
Wherein k is the safety coefficient in the time of 1000 ℃.
Conclusion: adopt the bolt of 8 φ 34mm to hang central tube, each bolt strained F＜[F] is so its intensity meets design requirement.
Consider about the about 20m/s of separator inlet cigarette speed, central tube is produced certain scouring force,, make it more firm so reinforce with 12 bolts.
Claims (6)
1. cyclone separator center tube fixing device, it is characterized in that: said fixture is made up of a plurality of bolts (5), a plurality of nut (6), a plurality of curved plate (7) and two hangers (8); Be uniformly distributed with on the circumference of the upper end barrel of central tube (1) and have a plurality of circular ports (1-2); Bolt (5) is passed corresponding circular port (1-2) and is arranged on central tube (1) nut outside (6) and is threaded by the inwall side of central tube (1); And the polished rod of bolt (5) part and circular port (1-2) matched in clearance; Each nut (6) reclines with the interior flexure plane of curved plate (7) mutually; And nut (6) is affixed with curved plate (7); The lower end of curved plate (7) and separator top board (9) are affixed, and the upper end of curved plate (7) and separator floor (10) are affixed, leave slit (H) between the outer wall of nut (6) near side end face of central tube (1) and central tube (1); And slit (H) is 12～25mm; Be filled with insulation fibre (11) between the upper surface of the lower surface of separator top board (9) and central tube (1) and in the zone that surrounds between the outer wall of central tube (1) and the furnace wall lining, two hangers (8) are symmetrical set and affixed with the top edge of central tube (1) inwall along the central axis of central tube (1), and bolt (5), nut (6) are all identical with curved plate (7) three's quantity.
2. cyclone separator center tube fixing device according to claim 1 is characterized in that: the quantity of bolt (5) is 8～12.
3. cyclone separator center tube fixing device according to claim 1 and 2 is characterized in that: the slit of leaving between the outer wall of nut (6) near central tube (1) one side end face and central tube (1) (H) is 20mm.
4. cyclone separator center tube fixing device according to claim 3 is characterized in that: the profile of nut (6) is cylindrical.
5. cyclone separator center tube fixing device according to claim 1 is characterized in that: nut (6) is welding with the affixed form of curved plate (7).
6. cyclone separator center tube fixing device according to claim 1 is characterized in that: the form that the lower end of curved plate (7) and separator top board (9) are affixed and the upper end of curved plate (7) and the affixed form of separator floor (10) are welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101089423A CN101862708B (en) | 2010-02-10 | 2010-02-10 | Center tube fixing device of cyclone separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101089423A CN101862708B (en) | 2010-02-10 | 2010-02-10 | Center tube fixing device of cyclone separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101862708A CN101862708A (en) | 2010-10-20 |
| CN101862708B true CN101862708B (en) | 2012-01-18 |
Family
ID=42954744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101089423A Active CN101862708B (en) | 2010-02-10 | 2010-02-10 | Center tube fixing device of cyclone separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101862708B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010007936A1 (en) * | 2010-02-12 | 2011-08-18 | Outotec Oyj | Diving tube delivery and cyclone hereby |
| CN105444161B (en) * | 2016-01-26 | 2017-07-07 | 哈尔滨红光锅炉总厂有限责任公司 | Environment-friendly and energy-efficient CFBB |
| CN112403694A (en) * | 2019-08-21 | 2021-02-26 | 无锡考特威星机械有限公司 | Gas material separator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200965226Y (en) * | 2006-07-14 | 2007-10-24 | 东方锅炉（集团）股份有限公司 | Cyclone separation device central tube for circulating fluidized bed boiler |
| CN201183027Y (en) * | 2008-04-24 | 2009-01-21 | 兖矿鲁南化肥厂 | Aircooled type cyclone separating device center barrel |
| CN101387399A (en) * | 2007-09-11 | 2009-03-18 | 李朝侠 | Fixation structure design and installation method for core separator in large-sized industrial furnace |
| CN101400449A (en) * | 2006-03-24 | 2009-04-01 | Fl史密斯公司 | Cyclone separator |
-
2010
- 2010-02-10 CN CN2010101089423A patent/CN101862708B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101400449A (en) * | 2006-03-24 | 2009-04-01 | Fl史密斯公司 | Cyclone separator |
| CN200965226Y (en) * | 2006-07-14 | 2007-10-24 | 东方锅炉（集团）股份有限公司 | Cyclone separation device central tube for circulating fluidized bed boiler |
| CN101387399A (en) * | 2007-09-11 | 2009-03-18 | 李朝侠 | Fixation structure design and installation method for core separator in large-sized industrial furnace |
| CN201183027Y (en) * | 2008-04-24 | 2009-01-21 | 兖矿鲁南化肥厂 | Aircooled type cyclone separating device center barrel |
Non-Patent Citations (2)
| Title |
|---|
| 戴锡华等.循环流化床锅炉中心筒变形脱落原因分析及改进.《节能》.2008,(第6期),51-53. * |
| 李金镇.75t/h循环流化床旋风分离器优化设计.《小氮肥》.2005,(第8期),1-4. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101862708A (en) | 2010-10-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101862708B (en) | Center tube fixing device of cyclone separator | |
| CN103807570B (en) | High temperature pipelines and petrochemical pipelines heat-insulating support | |
| EA023443B1 (en) | Vortex finder support and cyclone | |
| CN108266200A (en) | Shield machine normal pressure tool changing knife lid, knife cylinder and cutter replacing method | |
| CN207960615U (en) | Shield machine normal pressure tool changing knife lid, knife cylinder | |
| CN202971605U (en) | Spherical bearing pedestal | |
| CN211040446U (en) | Automatic gas pressure regulating device | |
| CN206084933U (en) | Horizontal valve case spare assembly and disassembly tools | |
| CN201635672U (en) | Special hoop for anti-wear sheath of sleeve | |
| CN205778685U (en) | Two-stage hangs thermal extraction casing head | |
| CN210014657U (en) | Tap hole brick | |
| CN203784565U (en) | Heat-insulation support for high-temperature pipeline | |
| CN209902594U (en) | Device for removing spinning head | |
| CN202895749U (en) | Press machine capable of flexibly connecting slider and balance cylinder | |
| CN208282953U (en) | For measuring the thermocouple assembly of combustion engine delivery temperature | |
| CN205534847U (en) | Thermal -insulated wear -resisting lining is with side pull ring type anchor nail | |
| CN202106570U (en) | Cylinder beam structure used for hydraulic press and hydraulic press provided with same | |
| CN208117724U (en) | Pulling attachment | |
| CN103791720B (en) | Large arch-shaped porous high-temperature electric furnace top structure | |
| CN201098873Y (en) | Tobacco macerator door pin shaft detaching tool | |
| CN218110630U (en) | Aluminum fiber accessory dismouting appurtenance | |
| CN204035200U (en) | Tile fixed by a kind of push-bench | |
| CN109575999B (en) | Self-supporting structure of coal gasifier body | |
| CN115464384B (en) | Fastening method of large heating bolt | |
| CN220094482U (en) | Dismantling tool for eccentric pin bush of rotating wheel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220328 Address after: 150000 South core Industrial Avenue, Harbin, Heilongjiang Province Patentee after: HARBIN HAGUO BOILER ENGINEERING TECHNOLOGY Co.,Ltd. Patentee after: Chaoyang Yanshanhu Power Generation Co., Ltd Address before: 150060 No. 11 Jingbo Road, haping road concentration area, Harbin Development Zone, Heilongjiang Province Patentee before: HARBIN HAGUO BOILER ENGINEERING TECHNOLOGY Co.,Ltd. |