CN201285061Y - Smoke damper door with vertically arranged principal shaft - Google Patents
Smoke damper door with vertically arranged principal shaft Download PDFInfo
- Publication number
- CN201285061Y CN201285061Y CNU2008201871777U CN200820187177U CN201285061Y CN 201285061 Y CN201285061 Y CN 201285061Y CN U2008201871777 U CNU2008201871777 U CN U2008201871777U CN 200820187177 U CN200820187177 U CN 200820187177U CN 201285061 Y CN201285061 Y CN 201285061Y
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- China
- Prior art keywords
- main shaft
- ring
- packing
- cover plate
- door
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a smoke damper door with a vertically arranged main shaft, which comprises a door panel, the main shaft and a frame, wherein the main shaft is arranged vertically; the lower part of the main shaft is provided with a main shaft sealing, supporting and adjusting device which comprises a main shaft; the main shaft is sequentially sleeved with a lining ring, a packing ring, a guide ring and a packing; a sealing ring is also embedded in the lining ring; the outer ring of the lining ring, the packing ring, the guide ring and the packing is sleeved with a shell; the lower end of the main shaft is provided with a stepped cover board which is inserted in an inner hole of the shell; the inner step surface of the stepped cover board is close to the end surface of the packing, the outer step surface of the stepped cover board contacts with the end surface of the shell, and the stepped cover board is fixedly connected with the shell together; an adjusting bolt is connected to the stepped cover board, the end surface of the adjusting bolt is provided with a spherical pit on which a steel ball is arranged, and the steel ball contacts with the main shaft through a center hole arranged on the lower end surface of the main shaft. The main shaft of the damper door is arranged vertically, thereby the deformation of the door panel of the damper door caused by gravity function is effectively solved; in addition, the smoke damper door has the advantages of small opening and closing force moment of the damper door, good door panel rigidity and favorable sealing, supporting and adjusting functions of the main shaft.
Description
Technical field
The utility model relates to the vertically arranged gas baffle door of a kind of main shaft, is specifically to be used for the gas baffle door that the heat power plant boiler flue gas switches and isolates.
Background technology
China's thermal power generation unit boiler flue gas desulfurization adopts lime stone-gypsum wet sulfur removal technology more; The people will enter desulfurizing tower inside during the desulphurization system maintenance, and is just most important as the baffle door that the partition flue gas is used.Baffle door adopts the horizontal spindle arrangement at present, the built-in sliding supported condition mode of the many employings of rear axle, add cover plate for sealing: the external self-aligning bearing support pattern of employing is also arranged, this mode must increase gland seal device and seal, and the driving baffle door is arranged in the flue side with the inspection platform of executing agency.
Along with development and national economy, the installed capacity in thermal power plant constantly enlarges, and to 600MW, even to 1000MW, the boiler flue size also increases thereupon by the continuous increase-volume of original 125MW, 300MW, and the door-plate of horizontal spindle baffle door also just constantly increases.Baffle door is in opening all the time when desulphurization system is normally moved, whole door-plate is a plane body that rigidity is very poor, because door-plate self gravitation effect meeting produces very big degree of disturbing, cause baffle door to rise to close moment and be multiplied, even cause that baffle door can't move, What is more breaks away from door-plate to fall down from bearing.
Summary of the invention
Technical problem to be solved in the utility model overcomes above-mentioned defective exactly, provides a kind of baffle door to rise to close that moment is little, door-plate good rigidity, main shaft seal, support and the good gas baffle door of regulating action.
Technical scheme is: the vertically arranged gas baffle door of a kind of main shaft, comprise door-plate, main shaft, framework, and main shaft is arranged vertically, and the main shaft bottom is provided with main shaft seal, support and adjusting device.
Main shaft seal, support and adjusting device, comprise main shaft, the lining ring of suit successively on the main shaft, packing ring, guide ring, packing, also embed in the lining ring sealing ring is arranged, lining ring, packing ring, guide ring, packing is set with shell on the outer ring, there is the step cover plate lower end of main shaft, the step cover plate inserts the endoporus of shell, step surface is near the end face of packing in the step cover plate, the outer step surface of step cover plate contacts with the end face of shell, step cover plate and shell are fixed together, be connected with the adjustment bolt on the step cover plate, the end face of adjusting bolt is provided with spherical pit, and spherical pit is provided with steel ball, and steel ball contacts with main shaft by the centre bore of the lower surface setting of main shaft.
Described main shaft seal, support and adjusting device outer setting have seal closure; Described step cover plate is provided with the safety supports step near the end face of main shaft; The inner ring face that described guide ring contacts with main shaft is a cambered surface; Described step cover plate is provided with the press injecting type lubricating cup: the material of described packing is a graphite; The material of described packing ring is a polytetrafluoroethylene (PTFE); Described sealing ring is O shape circle.
Beneficial effect: the baffle door main shaft is arranged vertically, and efficiently solves the distortion that the gravity effect produces the baffle door door-plate; After the baffle door main shaft is arranged vertically, the inspection platform of baffle door executing agency can be transferred to the flue top by the flue side, simplify the platform supporting construction, widen working space, improve personal operating safety factor; Reduce baffle door door-plate quantity, thereby reduced the sealing pair of baffle door, effectively improved the leakage efficiency of baffle door; The baffle door main shaft is arranged vertically, but the simplified structure design reduces the baffle door overall weight, reduces equipment cost; The multiple combination type hermetically-sealed construction effectively prevents to reveal the corrosion that causes because of flue gas; The point of high strength steel ball supports, the intrados of guide ring is spacing, can reduce rising of baffle door 30% approximately and close moment; All the time be full of lubricating grease in the oil storage cavity, effectively guarantee spindle nose and guide ring and support lubricating between the steel ball; Replenishing of the very convenient internal lubricant of press injecting type lubricating cup of cover plate outer end; Regulate bolt and can adjust the position of door-plate in baffle door flexibly, and can be locked with stop nut, the change of door-plate position prevented; When the safety supports step prevents that effectively the steel ball accident is broken, because of door-plate sinks significantly to the damage of baffle door hermetically-sealed construction.
Description of drawings
Fig. 1 is the horizontally disposed baffle door of former main shaft;
Fig. 2 is the vertically arranged baffle door of main shaft;
Fig. 3 is arranged vertically main shaft seal, support and the adjusting device structure chart of baffle door for main shaft.
Mark is described as follows among the figure:
1, main shaft; 2, sealing ring; 3, lining ring; 4, packing ring; 5, guide ring; 6, packing; 7, shell; 8, step cover plate; 9, press injecting type lubricating cup; 10, adjust bolt; 11, stop nut; 12, steel ball 13, baffle door framework; 14, baffle door liner; 15, door-plate; 16, the outer step surface of step cover plate 8; 17, the interior step surface of step cover plate 8; 18, the safety supports step on the step cover plate 8.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
The vertically arranged gas baffle door of a kind of main shaft comprises door-plate 15, main shaft 1, framework 13, and main shaft 1 is arranged vertically, and main shaft 1 bottom is provided with main shaft seal, support and adjusting device.
Main shaft seal, support and adjusting device, comprise main shaft 1, the lining ring 3 of suit successively on the main shaft 1, packing ring 4, guide ring 5, packing 6, also embed in the lining ring 3 sealing ring 2 is arranged, lining ring 3, packing ring 4, guide ring 5, packing is set with shell 7 on 6 outer rings, there is step cover plate 8 lower end of main shaft 1, step cover plate 8 inserts the endoporus of shell 7, step surface 17 is near the end face of packing 6 in the step cover plate 8, step cover plate 8 outer step surfaces 16 contact with the end face of shell 7, step cover plate 8 is fixed together with shell 7, be connected with on the step cover plate 8 and adjust bolt 10, the end face of adjusting bolt 10 is provided with spherical pit, and spherical pit is provided with steel ball 12, and steel ball 12 contacts with main shaft 1 by the centre bore of the lower surface setting of main shaft 1.
The step cover plate 8 of described main shaft seal, support and adjusting device is provided with safety supports step 18 near the end face of main shaft 1; The inner ring face that guide ring 5 contacts with main shaft 1 is a cambered surface; Step cover plate 8 is provided with press injecting type lubricating cup 9; The material of packing 6 is a graphite; The material of packing ring 4 is a polytetrafluoroethylene (PTFE); Sealing ring 2 is O shape circle.
Weld with baffle door liner 14, support frame 13 after lining ring 3 and shell 7 crimping, sealing ring 2 is packed in the forming tank of lining ring 3, main shaft 1 is inserted, pack into successively then packing ring 4, guide ring 5, packing 6, load onto step cover plate 8 and compress the inner stuffing group, the high strength that steel ball 12 is housed is adjusted the screwed hole of centre screw-in of bolt 10 from step cover plate 8, and locking stop nut 11 injects lubricants from press injecting type lubricating cup 9 at last.
Baffle door main shaft 1 is arranged vertically, and efficiently solves the distortion that the gravity effect produces baffle door door-plate 15; After baffle door main shaft 1 is arranged vertically, the inspection platform of baffle door executing agency can be transferred to the flue top by the flue side, simplify the platform supporting construction, widen working space, improve personal operating safety factor; Reduce baffle door door-plate 15 quantity, thereby reduced the sealing pair of baffle door, effectively improved the leakage efficiency of baffle door; Baffle door main shaft 1 is arranged vertically, but the simplified structure design reduces the baffle door overall weight, reduces equipment cost;
The axial force that main shaft 1 is produced by baffle door door-plate 15 gravity is downward, adjusting bolt 10 supports and adjustable axle end height it by high strength steel ball 12, guide ring 5 limits the position of main shaft 1, steel ball 12 was in its center all the time when main shaft 1 was rotated, make main shaft 1 and sealing ring 2, packing ring 4, packing 6 even contact, reach the optimal seal effect.Safety supports step 18 when steel ball 12 unexpected fragmentations in the step cover plate 8 guarantees that 1 on main shafts can descend by small distance, are unlikely to damage the hermetically-sealed construction of baffle door.All the time be full of lubricating grease in the step cover plate 8 oil storage cavitys, make steel ball 12 be in lubricating status all the time, reduce wearing and tearing therebetween, the service life of having improved whole mechanical device with contacting of main shaft 1.
Claims (8)
1, the vertically arranged gas baffle door of a kind of main shaft comprises door-plate (15), main shaft (1), framework (13), and it is characterized in that: main shaft (1) is arranged vertically, and main shaft (1) bottom is provided with main shaft seal, support and adjusting device.
2, the vertically arranged gas baffle door of main shaft according to claim 1, it is characterized in that: described main shaft seal, support and adjusting device, comprise main shaft (1), the lining ring of suit (3) successively on the main shaft (1), packing ring (4), guide ring (5), packing (6), also embed in the lining ring (3) sealing ring (2) is arranged, lining ring (3), packing ring (4), guide ring (5), packing (6) is set with shell (7) on the outer ring, there is step cover plate (8) lower end of main shaft (1), step cover plate (8) inserts the endoporus of shell (7), the interior step surface of step cover plate (8) (17) is near the end face of packing (6), the outer step surface of step cover plate (8) (16) contacts with the end face of shell (7), step cover plate (8) is fixed together with shell (7), be connected with on the step cover plate (8) and adjust bolt (10), the end face of adjusting bolt (10) is provided with spherical pit, spherical pit is provided with steel ball (12), and steel ball (12) contacts with main shaft (1) by the centre bore of the lower surface setting of main shaft (1).
3, the vertically arranged gas baffle door of main shaft according to claim 2 is characterized in that: described step cover plate (8) is provided with safety supports step (18) near the end face of main shaft (1).
4, the vertically arranged gas baffle door of main shaft according to claim 2 is characterized in that: the inner ring face that described guide ring (5) contacts with main shaft (1) is a cambered surface.
5, the vertically arranged gas baffle door of main shaft according to claim 2 is characterized in that: described step cover plate (8) is provided with press injecting type lubricating cup (9).
6, the vertically arranged gas baffle door of main shaft according to claim 2 is characterized in that: the material of described packing (6) is a graphite.
7, the vertically arranged gas baffle door of main shaft according to claim 2 is characterized in that: the material of described packing ring (4) is a polytetrafluoroethylene (PTFE).
8, the vertically arranged gas baffle door of main shaft according to claim 2 is characterized in that: described sealing ring (2) is O shape circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201871777U CN201285061Y (en) | 2008-09-19 | 2008-09-19 | Smoke damper door with vertically arranged principal shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201871777U CN201285061Y (en) | 2008-09-19 | 2008-09-19 | Smoke damper door with vertically arranged principal shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201285061Y true CN201285061Y (en) | 2009-08-05 |
Family
ID=40950047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201871777U Expired - Fee Related CN201285061Y (en) | 2008-09-19 | 2008-09-19 | Smoke damper door with vertically arranged principal shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201285061Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425686A (en) * | 2011-10-11 | 2012-04-25 | 无锡市华通电力设备有限公司 | Bypass reversing baffle plate for waste heat boiler |
| CN103216622A (en) * | 2013-04-25 | 2013-07-24 | 河北工业大学 | Rotating dynamic sealing structure |
| CN103939612A (en) * | 2014-01-14 | 2014-07-23 | 杭州杭锅通用设备有限公司 | Shaft-end sealing device for flue gas damper door |
| CN105444193A (en) * | 2015-12-16 | 2016-03-30 | 北京赫宸环境工程股份有限公司 | Pressure seal type baffle door |
-
2008
- 2008-09-19 CN CNU2008201871777U patent/CN201285061Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425686A (en) * | 2011-10-11 | 2012-04-25 | 无锡市华通电力设备有限公司 | Bypass reversing baffle plate for waste heat boiler |
| CN102425686B (en) * | 2011-10-11 | 2013-03-13 | 无锡市华通电力设备有限公司 | Bypass reversing baffle plate for waste heat boiler |
| CN103216622A (en) * | 2013-04-25 | 2013-07-24 | 河北工业大学 | Rotating dynamic sealing structure |
| CN103939612A (en) * | 2014-01-14 | 2014-07-23 | 杭州杭锅通用设备有限公司 | Shaft-end sealing device for flue gas damper door |
| CN103939612B (en) * | 2014-01-14 | 2015-12-09 | 杭州杭锅通用设备有限公司 | Gas baffle door shaft end seal device |
| CN105444193A (en) * | 2015-12-16 | 2016-03-30 | 北京赫宸环境工程股份有限公司 | Pressure seal type baffle door |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090805 Termination date: 20170919 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |