CN107152553A - A kind of high-temperature flue gas baffle door drive mechanism - Google Patents
A kind of high-temperature flue gas baffle door drive mechanism Download PDFInfo
- Publication number
- CN107152553A CN107152553A CN201710370483.8A CN201710370483A CN107152553A CN 107152553 A CN107152553 A CN 107152553A CN 201710370483 A CN201710370483 A CN 201710370483A CN 107152553 A CN107152553 A CN 107152553A
- Authority
- CN
- China
- Prior art keywords
- power transmission
- transmission shaft
- baffle door
- door drive
- rotating shaft
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K49/00—Means in or on valves for heating or cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
- F23J13/08—Doors or covers specially adapted for smoke-boxes, flues, or chimneys
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention discloses a kind of high-temperature flue gas baffle door drive mechanism, it is intended to solves gas baffle door drive mechanism weight greatly, heat-resisting ability is poor, moment of torsion transmits not good deficiency.The invention includes the power transmission shaft that two ends are arranged on wallboard, it is connected to two rotating shafts at power transmission shaft two ends, two rocking arms are fastenedly connected on power transmission shaft, baffle door drive link is hinged on rocking arm, power transmission shaft is hollow tubular structures, rotating shaft is axially arranged with passage, passage is connected with power transmission shaft inner chamber, one rotating shaft ventilation outer end of hole connection inlet suction port, another rotating shaft ventilation outer end of hole connection air outlet adapter, power transmission shaft outer wall is set with heat-insulation layer, power transmission shaft wall thickness of the power transmission shaft between two rocking arms is less than the wall thickness of other positions, rotating shaft outer end is arranged on the outside of wallboard, inlet suction port blasts cooling gas.
Description
Technical field
The present invention relates to a kind of high-temperature flue gas baffle door, more specifically, it relates to which a kind of high-temperature flue gas baffle door is driven
Structure.
Background technology
At present, the opening and closing of high-temperature flue gas baffle door are general is driven by rotating shaft and linkage, but is turned at present
The applicable temperature of axle is mostly below 600 degrees Celsius, and with the continuous upgrading of combustion engine, the temperature and flow of flue gas are improved constantly,
The delivery temperature of the state-of-the-art 9HA grades of combustion engine in the current world is close to 700 degrees Celsius.The structure of existing gas baffle door can not
Meet that temperature is higher, flow bigger, Flow Field Distribution is more complicated, the worse working condition of working environment.Matched flue gas
Baffle door, its power transmission shaft should transmit bigger moment of torsion, and higher temperature is adapted to again, and weight is also as far as possible small, to drop
Low cost.And traditional drive mechanism weight is big, heat-resisting ability is poor, and moment of torsion transmission is not good.
Chinese patent notification number CN104197350B, discloses a kind of gas baffle door drive mechanism, including be arranged at three
The front support seat of logical housing forward end and the rear support seat for being arranged at three-way body rear end, front support seat and rear support seat are coaxially set
Put, be rotatably connected on front support seat on front axle, rear support seat and be rotatably connected to rear axle, both front axle, rear axle connection end are stretched
Enter in three-way body, torque tube two ends are respectively fixedly connected with rear axle, front axle, and reversible deflector is welded with torque tube.Work
When the transmission device that is connected by preceding shaft end external force is delivered to front axle and transmitted successively by front axle to torque tube, on torque tube
Fixed reversible deflector can realize opening and closing operations.This gas baffle door drive mechanism weight is big, and heat-resisting ability is poor, moment of torsion
Transmission is not good.
The content of the invention
Big instant invention overcomes gas baffle door drive mechanism weight, heat-resisting ability is poor, and moment of torsion transmits not good deficiency,
There is provided a kind of high-temperature flue gas baffle door drive mechanism, it lightweight, heat-resisting ability is strong, and moment of torsion transmission effect is good.
In order to solve the above-mentioned technical problem, the present invention uses following technical scheme：A kind of high-temperature flue gas baffle door transmission knot
Structure, including two ends be arranged on wallboard power transmission shaft, be connected on two rotating shafts at power transmission shaft two ends, power transmission shaft and be fastenedly connected
Baffle door drive link is hinged on two rocking arms, rocking arm, power transmission shaft is hollow tubular structures, and rotating shaft is axially arranged with passage, ventilated
Hole is connected with power transmission shaft inner chamber, and rotating shaft ventilation outer end of hole connection inlet suction port, another rotating shaft ventilation outer end of hole connection outlet connects
Head, power transmission shaft outer wall is set with heat-insulation layer, and power transmission shaft wall thickness of the power transmission shaft between two rocking arms is less than the wall thickness of other positions, turns
Axle outer end is arranged on the outside of wallboard, and inlet suction port blasts cooling gas.
During work, axis of rotation is driven by drive mechanism, the rotation of rotating shaft drives drive axis, so that by shaking
Arm, drive link realize the opening and closing to baffle door.Cooling gas is blasted into passage by inlet suction port simultaneously, it is cold
But air enters after power transmission shaft inner chamber, the passage in another rotating shaft from air outlet adapter output.Cooling gas is constantly blasted, right
Rotating shaft, power transmission shaft are cooled down, and substantially increase the heat-resisting ability of rotating shaft and power transmission shaft.And the suit insulation of power transmission shaft outer wall
Layer, the high temperature for effectively keeping out outside is delivered on power transmission shaft, effectively improves the heat-resisting ability of power transmission shaft.Power transmission shaft is in two rocking arms
Between power transmission shaft wall thickness be less than other positions wall thickness, improve the contact area of power transmission shaft inwall and cooling gas, improve
The volume of power transmission shaft inner chamber, is conducive to improving cooling effect, while alleviate the weight of power transmission shaft.This high temperature baffle door is passed
Dynamic lightweight construction, heat-resisting ability is strong, effectively prevent rotating shaft and power transmission shaft in the course of work and metaboly occurs, moment of torsion is passed
Pass effect good.
Set preferably, power transmission shaft includes close interlude end on the changeover portion of centre and the linkage section at two ends, linkage section
There is reaming, transition chamfering be provided between reaming and linkage section inwall, close installation has bending resistance ring between reaming and changeover portion inwall,
Rocking arm is connected on linkage section close to middle fragment position.
Linkage section and changeover portion link position install bending resistance ring, effectively increase the bending strength of link position.Transition is fallen
The smooth outflow being provided with beneficial to cooling gas at angle, while it is spacing to resist bending ring progress.Bending resistance ring is easy in the setting of reaming
Location and installation.
Preferably, being provided with axle envelope between heat-insulation layer outer wall and wallboard on power transmission shaft, set between axle envelope and heat-insulation layer
There is sealing shroud, sealing shroud is closely sleeved on heat-insulation layer outer wall.Axle envelope serves good sealing function, while entering to power transmission shaft
Row reliable location.
Preferably, axle envelope includes outer tube, spacing end cap, graphite-seal ring, outer tube one end is turned up provided with outside
Side, the outer tube other end is provided with inside in-flanges, and spacing end cap is connected on flanging, and flanging is connected to by connecting plate
On wallboard, liner plate is provided with the inside of wallboard, abutment ring is installed between liner plate and in-flanges, graphite-seal ring is arranged in outer tube,
Buffering ring is mounted between graphite-seal ring and spacing end cap and between graphite-seal ring and in-flanges.This shaft seal structure
Simply, sealing and good positioning effect.
Preferably, be provided with bearing in rotating shaft, bearing is securedly mounted on the outside of wallboard, rotating shaft upper bearing (metal) and power transmission shaft it
Between positioning anchor ear is installed, be equipped with gap between positioning anchor ear and bearing and between positioning anchor ear and power transmission shaft.Positioning is embraced
The axially position for rotating shaft is bound round, gap is equipped between positioning anchor ear and bearing and between positioning anchor ear and power transmission shaft, gives
Thermal expansion leaves surplus, it is to avoid the influence of thermal expansion.
Preferably, rotating shaft is in step shaft-like structure, rotating shaft bigger diameter end is inserted into power transmission shaft openend, rotating shaft and power transmission shaft
High temperature resistant flat key is connected between inwall.It is attached between rotating shaft and power transmission shaft by high temperature resistant flat key, it is easy to connect reliable.
Preferably, inlet suction port connects air blower by pipeline.Air progress is blasted into power transmission shaft by air blower
Cooling, cost is low, easy to operate, and airflow is fast, good cooling results.
Preferably, air outlet adapter passes through pipeline joint noise reduction device.Being provided with for muffler is beneficial to reduce cooling gas stream
The noise produced during dynamic.
Preferably, being provided with reinforcing ring with rocking arm link position on power transmission shaft outer wall.Being provided with for reinforcing ring is beneficial to reduce
Local stress between rocking arm and power transmission shaft, improves the stress performance of power transmission shaft.
Preferably, being connected with waterfog head on inlet suction port, waterfog head connects high-pressure water pipe, waterfog head and high pressure
The magnetic valve of pulsed interval break-make is installed between water pipe.While to power transmission shaft transporting cold-air gas, by waterfog head to
Power transmission shaft sprays high-pressure water mist, and water smoke and cooling gas are cooled down to power transmission shaft, rotating shaft simultaneously, substantially increase cooling effect
Really.And pulsed interrupted injection water smoke is realized by magnetic valve, it is to avoid atomized water spray is excessive and makes occur ponding in power transmission shaft
Phenomenon.
Compared with prior art, the beneficial effects of the invention are as follows：High temperature baffle door drive mechanism is lightweight, heat-resisting ability
By force, rotating shaft and power transmission shaft in the course of work be effectively prevent and metaboly occur, moment of torsion transmission effect is good.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present invention；
Fig. 2 is the axle envelope position close-up schematic view of the present invention；
In figure：1st, power transmission shaft, 2, rotating shaft, 3, rocking arm, 4, drive link, 5, passage, 6, inlet suction port, 7, air outlet adapter, 8,
Heat-insulation layer, 9, changeover portion, 10, linkage section, 11, reaming, 12, transition chamfering, 13, bending resistance ring, 14, axle envelope, 15, sealing shroud, 16,
Outer tube, 17, spacing end cap, 18, graphite-seal ring, 19, flanging, 20, in-flanges, 21, connecting plate, 22, liner plate, 23, support
Connect ring, 24, buffering ring, 25, bearing, 26, positioning anchor ear, 27, high temperature resistant flat key, 28, air blower, 29, muffler, 30, driving
Rotating disk, 31, waterfog head, 32, high-pressure water pipe, 33, magnetic valve, 34, reinforcing ring.
Embodiment
Below by specific embodiment, and with reference to accompanying drawing, technical scheme is further described specifically：
Embodiment：A kind of high-temperature flue gas baffle door drive mechanism（Referring to accompanying drawing 1, accompanying drawing 2）, including two ends are on wallboard
Be fastenedly connected on power transmission shaft 1, two rotating shafts 2 for being connected to power transmission shaft two ends, power transmission shaft on two rocking arms 3, power transmission shaft outer wall and
Rocking arm link position is provided with reinforcing ring 34, rocking arm and is hinged baffle door drive link 4, and power transmission shaft is hollow tubular structures, rotating shaft
It is axially arranged with passage 5, passage is connected with power transmission shaft inner chamber, rotating shaft ventilation outer end of hole connection inlet suction port 6, another rotating shaft
Outer end of hole of ventilating connects air outlet adapter 7, and power transmission shaft outer wall is set with heat-insulation layer 8, transmission axial wall of the power transmission shaft between two rocking arms
Thickness is less than the wall thickness of other positions, and rotating shaft outer end is arranged on the outside of wallboard, and inlet suction port blasts cooling gas.During power transmission shaft includes
Between changeover portion 9 and two ends linkage section 10, be provided with reaming 11 close to interlude end on linkage section, reaming and linkage section inwall it
Between be provided with transition chamfering 12, close installation has bending resistance ring 13, changeover portion and linkage section external diameter phase between reaming and changeover portion inwall
The docking of same and end is welded together.Changeover portion wall thickness is less than linkage section wall thickness, and changeover portion internal diameter is consistent with reaming pore size.Shake
Arm is connected on linkage section close to middle fragment position.Axle envelope 14, axle are installed between heat-insulation layer outer wall and wallboard on power transmission shaft
Sealing shroud 15 is provided between envelope and heat-insulation layer, sealing shroud is closely sleeved on heat-insulation layer outer wall.Axle envelope includes outer tube 16, spacing
End cap 17, graphite-seal ring 18, outer tube one end are provided with outside flanging 19, and the outer tube other end is provided with inside in-flanges
20, spacing end cap is connected on flanging, and flanging is connected on wallboard by connecting plate 21, and liner plate 22 is provided with the inside of wallboard,
Abutment ring 23 is installed, graphite-seal ring is arranged in outer tube between liner plate and in-flanges, graphite-seal ring and spacing end cap it
Between and graphite-seal ring and in-flanges between be mounted on buffering ring 24.Bearing 25 is installed, bearing fastening is installed in rotating shaft
On the outside of wallboard, positioning anchor ear 26 is installed between rotating shaft upper bearing (metal) and power transmission shaft, positions between anchor ear and bearing and positions
Gap is equipped between anchor ear and power transmission shaft.Rotating shaft is in step shaft-like structure, and rotating shaft bigger diameter end is inserted into power transmission shaft openend, is turned
High temperature resistant flat key 27 is connected between axle and power transmission shaft inwall.Inlet suction port connects air blower 28 by pipeline.Air outlet adapter passes through
Pipeline joint noise reduction device 29.Driving rotating disk 30 is connected in rotating shaft.Waterfog head 31, waterfog head connection are connected with inlet suction port
High-pressure water pipe 32, installs the magnetic valve 33 of pulsed interval break-make between waterfog head and high-pressure water pipe.
During work, axis of rotation is driven by drive mechanism, the rotation of rotating shaft drives drive axis, so that by shaking
Arm, drive link realize the opening and closing to baffle door.Cooling gas is blasted into passage by inlet suction port simultaneously, it is cold
But air enters after power transmission shaft inner chamber, the passage in another rotating shaft from air outlet adapter output.Cooling gas is constantly blasted, right
Rotating shaft, power transmission shaft are cooled down, and substantially increase the heat-resisting ability of rotating shaft and power transmission shaft.And the suit insulation of power transmission shaft outer wall
Layer, the high temperature for effectively keeping out outside is delivered on power transmission shaft, effectively improves the heat-resisting ability of power transmission shaft.Power transmission shaft is in two rocking arms
Between power transmission shaft wall thickness be less than other positions wall thickness, improve the contact area of power transmission shaft inwall and cooling gas, improve
The volume of power transmission shaft inner chamber, is conducive to improving cooling effect, while alleviate the weight of power transmission shaft.To power transmission shaft transporting cold-air
While gas, high-pressure water mist is sprayed to power transmission shaft by waterfog head, water smoke and cooling gas are entered to power transmission shaft, rotating shaft simultaneously
Row cooling, substantially increases cooling effect.And pulsed interrupted injection water smoke is realized by magnetic valve, it is to avoid atomized water spray mistake
Make occur seeping phenomenon in power transmission shaft more.
Embodiment described above is a kind of preferably scheme of the present invention, not makees any formal to the present invention
Limitation, also has other variants and remodeling on the premise of without departing from the technical scheme described in claim.
Claims (10)
1. a kind of high-temperature flue gas baffle door drive mechanism, including two ends be arranged on wallboard power transmission shaft, be connected to transmission
It is fastenedly connected on two rotating shafts at axle two ends, power transmission shaft on two rocking arms, rocking arm and is hinged baffle door drive link, it is characterized in that, transmission
Axle is hollow tubular structures, and rotating shaft is axially arranged with passage, and passage is connected with power transmission shaft inner chamber, and rotating shaft ventilation outer end of hole connects
Inlet suction port is connect, another rotating shaft ventilation outer end of hole connection air outlet adapter, power transmission shaft outer wall is set with heat-insulation layer, and power transmission shaft shakes two
Power transmission shaft wall thickness between arm is less than the wall thickness of other positions, and rotating shaft outer end is arranged on the outside of wallboard, and inlet suction port blasts cooling
Gas.
2. a kind of high-temperature flue gas baffle door drive mechanism according to claim 1, it is characterized in that, power transmission shaft includes middle
Reaming is provided with close to interlude end on changeover portion and the linkage section at two ends, linkage section, was provided between reaming and linkage section inwall
Chamfering is crossed, close installation has bending resistance ring between reaming and changeover portion inwall, rocking arm is connected on linkage section close to middle fragment position.
3. a kind of high-temperature flue gas baffle door drive mechanism according to claim 1, it is characterized in that, the heat-insulation layer on power transmission shaft
Axle envelope is installed between outer wall and wallboard, sealing shroud is provided between axle envelope and heat-insulation layer, sealing shroud is closely sleeved on outside heat-insulation layer
On wall.
4. a kind of high-temperature flue gas baffle door drive mechanism according to claim 3, it is characterized in that, axle envelope include outer tube,
Spacing end cap, graphite-seal ring, outer tube one end are provided with outside flanging, and the outer tube other end is provided with inside in-flanges,
Spacing end cap is connected on flanging, and flanging is connected on wallboard by connecting plate, is provided with liner plate on the inside of wallboard, liner plate and interior
Abutment ring is installed, graphite-seal ring is arranged in outer tube between flange, between graphite-seal ring and spacing end cap and graphite
Buffering ring is mounted between sealing ring and in-flanges.
5. a kind of high-temperature flue gas baffle door drive mechanism according to claim 1, it is characterized in that, axle is installed in rotating shaft
Hold, bearing is securedly mounted on the outside of wallboard, positioning anchor ear, positioning anchor ear and bearing are installed between rotating shaft upper bearing (metal) and power transmission shaft
Between and positioning anchor ear and power transmission shaft between be equipped with gap.
6. a kind of high-temperature flue gas baffle door drive mechanism according to claim 1, it is characterized in that, rotating shaft is in step shaft-like knot
Structure, rotating shaft bigger diameter end is inserted into power transmission shaft openend, and high temperature resistant flat key is connected between rotating shaft and power transmission shaft inwall.
7. a kind of high-temperature flue gas baffle door drive mechanism according to claim 1 to 6 any one, it is characterized in that, air inlet
Joint connects air blower by pipeline.
8. a kind of high-temperature flue gas baffle door drive mechanism according to claim 1 to 6 any one, it is characterized in that, outlet
Joint passes through pipeline joint noise reduction device.
9. a kind of high-temperature flue gas baffle door drive mechanism according to claim 1 to 6 any one, it is characterized in that, transmission
On axle outer wall reinforcing ring is provided with rocking arm link position.
10. a kind of high-temperature flue gas baffle door drive mechanism according to claim 1 to 6 any one, it is characterized in that, air inlet
Waterfog head, waterfog head connection high-pressure water pipe, between waterfog head and high-pressure water pipe between installation pulsed are connected with joint
The magnetic valve for break-make of having a rest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710370483.8A CN107152553B (en) | 2017-05-23 | 2017-05-23 | A kind of high-temperature flue gas baffle door drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710370483.8A CN107152553B (en) | 2017-05-23 | 2017-05-23 | A kind of high-temperature flue gas baffle door drive mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107152553A true CN107152553A (en) | 2017-09-12 |
| CN107152553B CN107152553B (en) | 2019-01-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710370483.8A Active CN107152553B (en) | 2017-05-23 | 2017-05-23 | A kind of high-temperature flue gas baffle door drive mechanism |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2825433A (en) * | 1955-01-24 | 1958-03-04 | Albert P Robinson | Chimney pit door |
| CN2332458Y (en) * | 1998-01-12 | 1999-08-11 | 陈耀庭 | Prodn. crystallizing stove for layer crystalled sodium silicate |
| CN202227861U (en) * | 2011-08-04 | 2012-05-23 | 杭州杭锅通用设备有限公司 | Smoke baffle door driving transmission system |
| CN203704003U (en) * | 2013-11-28 | 2014-07-09 | 金荣森 | Desulfurization baffle door |
| 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 |
| CN206846055U (en) * | 2017-05-23 | 2018-01-05 | 杭州杭锅通用设备有限公司 | A kind of gas baffle door drive mechanism |
-
2017
- 2017-05-23 CN CN201710370483.8A patent/CN107152553B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2825433A (en) * | 1955-01-24 | 1958-03-04 | Albert P Robinson | Chimney pit door |
| CN2332458Y (en) * | 1998-01-12 | 1999-08-11 | 陈耀庭 | Prodn. crystallizing stove for layer crystalled sodium silicate |
| CN202227861U (en) * | 2011-08-04 | 2012-05-23 | 杭州杭锅通用设备有限公司 | Smoke baffle door driving transmission system |
| CN203704003U (en) * | 2013-11-28 | 2014-07-09 | 金荣森 | Desulfurization baffle door |
| 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 |
| CN206846055U (en) * | 2017-05-23 | 2018-01-05 | 杭州杭锅通用设备有限公司 | A kind of gas baffle door drive mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107152553B (en) | 2019-01-11 |
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