CN107152553B - 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
- CN107152553B CN107152553B CN201710370483.8A CN201710370483A CN107152553B CN 107152553 B CN107152553 B CN 107152553B CN 201710370483 A CN201710370483 A CN 201710370483A CN 107152553 B CN107152553 B CN 107152553B
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- CN
- China
- Prior art keywords
- transmission shaft
- shaft
- baffle door
- door drive
- flue gas
- 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.)
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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
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- 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
Abstract
The invention discloses a kind of high-temperature flue gas baffle door drive mechanisms, it is intended to solve that gas baffle door drive mechanism weight is big, and heat-resisting ability is poor, torque transmits bad deficiency.The invention includes the transmission shaft that both ends are mounted on wallboard, it is connected to two shafts of both ends of the drive shaft, two rocker arms are fastenedly connected on transmission shaft, hinged baffle door drive link on rocker arm, transmission shaft is hollow tubular structures, shaft is axially arranged with venthole, venthole is connected to transmission shaft inner cavity, one shaft ventilation outer end of hole connects inlet suction port, another shaft ventilation outer end of hole connects air outlet adapter, transmission shaft outer wall is set with insulating layer, transmission shaft wall thickness of the transmission shaft between two rocker arms is less than the wall thickness of other positions, 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 doors, more specifically, it relates to which a kind of high-temperature flue gas baffle door is driven
Structure.
Background technique
Currently, the opening and closing of high-temperature flue gas baffle door generally pass through shaft and link mechanism driving, but turn at present
The applicable temperature of axis mostly at 600 degrees Celsius hereinafter, with combustion engine continuous upgrading, the temperature and flow of flue gas be continuously improved,
The delivery temperature of the state-of-the-art 9HA grades of combustion engine in the world is close to 700 degrees Celsius at present.The structure of existing gas baffle door cannot
Meet that temperature is higher, flow is bigger, Flow Field Distribution is more complicated, the worse working condition of working environment.Matched flue gas
Baffle door, transmission shaft should transmit bigger torque, adapt to higher temperature again, and weight is also small as far as possible, with drop
Low cost.And traditional drive mechanism weight is big, heat-resisting ability is poor, and torque transmitting is bad.
Chinese patent notification number CN104197350B discloses a kind of gas baffle door drive mechanism, including is set to three
The front support seat of logical housing forward end and the rear support for being set to three-way body rear end, front support seat and rear support are coaxially set
It sets, front axle is rotatably connected on front support seat, rear axle is rotatably connected in rear support, both front axle, rear axle connecting pins are stretched
Enter in three-way body, torque tube both ends are respectively fixedly connected on rear axle, front axle, and reversible deflector is welded on torque tube.Work
When the transmission device that is connected by front axle end external force is delivered to front axle and torque tube is successively transmitted to by front axle, on torque tube
Fixed reversible deflector can be realized opening and closing operations.This gas baffle door drive mechanism weight is big, and heat-resisting ability is poor, torque
It transmits bad.
Summary of the invention
The present invention overcomes gas baffle door drive mechanism weight is big, heat-resisting ability is poor, and torque transmits bad deficiency,
A kind of high-temperature flue gas baffle door drive mechanism is provided, it light-weight, heat-resisting ability is strong, and torque transmission effect is good.
In order to solve the above-mentioned technical problem, the invention adopts the following technical scheme: a kind of high-temperature flue gas baffle door transmission knot
Structure, the transmission shaft being mounted on wallboard including both ends, two shafts for being connected to both ends of the drive shaft are fastenedly connected on transmission shaft
Two rocker arms, hinged baffle door drive link on rocker arm, transmission shaft is hollow tubular structures, and shaft is axially arranged with venthole, ventilation
Hole is connected to transmission shaft inner cavity, and shaft ventilation outer end of hole connects inlet suction port, and another shaft ventilation outer end of hole connection outlet connects
Head, transmission shaft outer wall are set with insulating layer, and transmission shaft wall thickness of the transmission shaft between two rocker arms is less than the wall thickness of other positions, turn
Axis outer end is arranged on the outside of wallboard, and inlet suction port blasts cooling gas.
When work, shaft rotation is driven by driving mechanism, the rotation of shaft drives transmission shaft rotation, thus by shaking
Arm, drive link realize the opening and closing to baffle door.Cooling gas is blasted into venthole by inlet suction port simultaneously, it is cold
But air exports after entering transmission shaft inner cavity, the venthole in another shaft from air outlet adapter.Cooling gas constantly blasts, right
Shaft, transmission shaft are cooled down, and the heat-resisting ability of shaft and transmission shaft is substantially increased.And transmission shaft outer wall suit heat preservation
Layer is effectively kept out external high temperature and is transmitted on transmission shaft, effectively improves the heat-resisting ability of transmission shaft.Transmission shaft is in two rocker arms
Between transmission shaft wall thickness be less than other positions wall thickness, improve the contact area of transmission shaft inner wall and cooling gas, improve
The volume of transmission shaft inner cavity is conducive to improve cooling effect, while alleviating the weight of transmission shaft.This high temperature baffle door passes
Dynamic lightweight construction, heat-resisting ability is strong, effectively prevents shaft and transmission shaft in the course of work and metaboly occurs, torque passes
It is good to pass effect.
Preferably, transmission shaft includes the linkage section of intermediate changeover portion and both ends, set on linkage section close to interlude end
There is reaming, transition chamfering is equipped between reaming and linkage section inner wall, close installation has bending resistance ring between reaming and changeover portion inner wall,
Rocker arm is connected on linkage section close to intermediate 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 conducive to cooling gas at angle, while fighting bending ring and being limited.The setting of reaming is convenient for bending resistance ring
Location and installation.
Preferably, the insulating layer outer wall on transmission shaft and being equipped with axle envelope between wallboard, set between axle envelope and insulating layer
There is sealing shroud, sealing shroud is closely sleeved on insulating layer outer wall.Axle envelope plays good sealing function, at the same to transmission shaft into
Row reliable location.
Preferably, axle envelope includes outer tube, limit end cap, graphite-seal ring, outer tube one end is equipped with outside turn up
Side, the outer tube other end are equipped with inside in-flanges, and limit end cap is connected on flanging, and flanging is connected to by connecting plate
On wallboard, it being equipped with liner plate on the inside of wallboard, abutment ring is installed between liner plate and in-flanges, graphite-seal ring is mounted in outer tube,
Buffering ring is mounted between graphite-seal ring and limit end cap and between graphite-seal ring and in-flanges.This shaft seal structure
Simply, sealing and good positioning effect.
Preferably, be equipped with bearing in shaft, bearing is securedly mounted on the outside of wallboard, shaft upper bearing (metal) and transmission shaft it
Between positioning anchor ear is installed, position between anchor ear and bearing and be equipped with gap between positioning anchor ear and transmission shaft.Positioning is embraced
Hoop is used for the axially position of shaft, positions between anchor ear and bearing and is equipped with gap between positioning anchor ear and transmission shaft, gives
There are surpluses for thermal expansion, avoid the influence of thermal expansion.
Preferably, shaft is in step shaft-like structure, shaft bigger diameter end is inserted into transmission shaft open end, shaft and transmission shaft
High temperature resistant flat key is connected between inner wall.It is attached between shaft and 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 transmission shaft by air blower
Cooling, at low cost, easy to operate, airflow is fast, good cooling results.
Preferably, air outlet adapter passes through pipeline joint noise reduction device.Being provided with for muffler is conducive to reduce cooling gas stream
The noise generated during dynamic.
Preferably, being equipped with reinforcing ring with rocker arm link position on transmission shaft outer wall.Being provided with for reinforcing ring is conducive to reduce
Local stress between rocker arm and transmission shaft improves the stress performance of transmission shaft.
Preferably, being connected with water mist spraying head on inlet suction port, water mist spraying head connects high-pressure water pipe, water mist spraying head and high pressure
The solenoid valve of pulsed interval on-off is installed between water pipe.While to transmission shaft transporting cold-air gas, by water mist spraying head to
Transmission shaft sprays high-pressure water mist, and water mist and cooling gas simultaneously cool down transmission shaft, shaft, substantially increases cooling effect
Fruit.And pulsed interrupted injection water mist is realized by solenoid valve, it avoids atomized water spray excessive and makes occur ponding in transmission shaft
Phenomenon.
Compared with prior art, the beneficial effects of the present invention are: high temperature baffle door drive mechanism is light-weight, heat-resisting ability
By force, shaft and transmission shaft in the course of work are effectively prevented and metaboly occurs, torque transmission effect is good.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the invention；
Fig. 2 is axle envelope position partial enlargement diagram of the invention；
In figure: 1, transmission shaft, 2, shaft, 3, rocker arm, 4, drive link, 5, venthole, 6, inlet suction port, 7, outlet connects
Head, 8, insulating layer, 9, changeover portion, 10, linkage section, 11, reaming, 12, transition chamfering, 13, bending resistance ring, 14, axle envelope, 15, sealing
Set, 16, outer tube, 17, limit end cap, 18, graphite-seal ring, 19, flanging, 20, in-flanges, 21, connecting plate, 22, liner plate,
23, abutment ring, 24, buffering ring, 25, bearing, 26, positioning anchor ear, 27, high temperature resistant flat key, 28, air blower, 29, muffler, 30,
Drive turntable, 31, water mist spraying head, 32, high-pressure water pipe, 33, solenoid valve, 34, reinforcing ring.
Specific embodiment
Below by specific embodiment, and in conjunction with attached drawing, technical scheme of the present invention is further described:
Embodiment: a kind of high-temperature flue gas baffle door drive mechanism (referring to attached drawing 1, attached drawing 2), including both ends are mounted on wallboard
On transmission shaft 1, be connected to two shafts 2 of both ends of the drive shaft, be fastenedly connected two rocker arms 3, transmission shaft outer wall on transmission shaft
Upper and rocker arm link position is equipped with reinforcing ring 34, and hinged baffle door drive link 4 on rocker arm, transmission shaft is hollow tubular structures,
Shaft is axially arranged with venthole 5, and venthole is connected to transmission shaft inner cavity, and shaft ventilation outer end of hole connects inlet suction port 6, another
Shaft ventilation outer end of hole connects air outlet adapter 7, and transmission shaft outer wall is set with insulating layer 8, transmission of the transmission shaft between two rocker arms
Axial wall thickness is less than the wall thickness of other positions, and shaft outer end is arranged on the outside of wallboard, and inlet suction port blasts cooling gas.Transmission shaft packet
It includes the linkage section 10 of intermediate changeover portion 9 and both ends, is equipped with reaming 11 close to interlude end on linkage section, in reaming and linkage section
Transition chamfering 12 is equipped between wall, close installation has a bending resistance ring 13 between reaming and changeover portion inner wall, outside changeover portion and linkage section
Diameter is identical and end docking is welded together.Changeover portion wall thickness is less than linkage section wall thickness, changeover portion internal diameter and reaming pore size one
It causes.Rocker arm is connected on linkage section close to intermediate fragment position.Insulating layer outer wall on transmission shaft and axle envelope is installed between wallboard
14, sealing shroud 15 is equipped between axle envelope and insulating layer, sealing shroud is closely sleeved on insulating layer outer wall.Axle envelope includes outer tube
16, end cap 17, graphite-seal ring 18 are limited, outer tube one end is equipped with outside flanging 19, and the outer tube other end is equipped with inside
In-flanges 20, limit end cap is connected on flanging, and flanging is connected on wallboard by connecting plate 21, is equipped on the inside of wallboard
Liner plate 22 installs abutment ring 23 between liner plate and in-flanges, graphite-seal ring is mounted in outer tube, graphite-seal ring and limit
Buffering ring 24 is mounted between end cap and between graphite-seal ring and in-flanges.Bearing 25 is installed, bearing is tight in shaft
Guan County is equipped with positioning anchor ear 26 on the outside of the wallboard between shaft upper bearing (metal) and transmission shaft, position between anchor ear and bearing with
And gap is equipped between positioning anchor ear and transmission shaft.Shaft is in step shaft-like structure, and shaft bigger diameter end is inserted into transmission shaft and opens
Mouth end, connects high temperature resistant flat key 27 between shaft and transmission shaft inner wall.Inlet suction port connects air blower 28 by pipeline.Outlet connects
Head passes through pipeline joint noise reduction device 29.Connection driving turntable 30 in shaft.Water mist spraying head 31, water mist spray are connected on inlet suction port
Head connection high-pressure water pipe 32, installs the solenoid valve 33 of pulsed interval on-off between water mist spraying head and high-pressure water pipe.
When work, shaft rotation is driven by driving mechanism, the rotation of shaft drives transmission shaft rotation, thus by shaking
Arm, drive link realize the opening and closing to baffle door.Cooling gas is blasted into venthole by inlet suction port simultaneously, it is cold
But air exports after entering transmission shaft inner cavity, the venthole in another shaft from air outlet adapter.Cooling gas constantly blasts, right
Shaft, transmission shaft are cooled down, and the heat-resisting ability of shaft and transmission shaft is substantially increased.And transmission shaft outer wall suit heat preservation
Layer is effectively kept out external high temperature and is transmitted on transmission shaft, effectively improves the heat-resisting ability of transmission shaft.Transmission shaft is in two rocker arms
Between transmission shaft wall thickness be less than other positions wall thickness, improve the contact area of transmission shaft inner wall and cooling gas, improve
The volume of transmission shaft inner cavity is conducive to improve cooling effect, while alleviating the weight of transmission shaft.To transmission shaft transporting cold-air
While gas, high-pressure water mist is sprayed to transmission shaft by water mist spraying head, water mist and cooling gas simultaneously to transmission shaft, shaft into
Row cooling, substantially increases cooling effect.And pulsed interrupted injection water mist is realized by solenoid valve, avoid atomized water spray mistake
Make occur seeping phenomenon in transmission shaft more.
Above-mentioned embodiment is only a preferred solution of the present invention, not the present invention is made in any form
Limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.
Claims (9)
1. a kind of high-temperature flue gas baffle door drive mechanism, the transmission shaft being mounted on wallboard including both ends are connected to transmission
Two shafts at axis both ends are fastenedly connected two rocker arms, hinged baffle door drive link on rocker arm, characterized in that transmission on transmission shaft
Axis is hollow tubular structures, and shaft is axially arranged with venthole, and venthole is connected to transmission shaft inner cavity, and shaft ventilation outer end of hole connects
Inlet suction port is connect, another shaft ventilation outer end of hole connects air outlet adapter, and transmission shaft outer wall is set with insulating layer, and transmission shaft shakes two
Transmission shaft wall thickness between arm is less than the wall thickness of other positions, and shaft outer end is arranged on the outside of wallboard, and inlet suction port blasts cooling
Gas；Water mist spraying head is connected on inlet suction port, water mist spraying head connects high-pressure water pipe, installs between water mist spraying head and high-pressure water pipe
The solenoid valve of pulsed interval on-off.
2. a kind of high-temperature flue gas baffle door drive mechanism according to claim 1, characterized in that transmission shaft includes intermediate
The linkage section of changeover portion and both ends is equipped with reaming close to interlude end on linkage section, was equipped between reaming and linkage section inner wall
Chamfering is crossed, close installation has bending resistance ring between reaming and changeover portion inner wall, and rocker arm is connected on linkage section close to intermediate fragment position.
3. a kind of high-temperature flue gas baffle door drive mechanism according to claim 1, characterized in that the insulating layer on transmission shaft
Axle envelope is installed between outer wall and wallboard, sealing shroud is equipped between axle envelope and insulating layer, sealing shroud is closely sleeved on outside insulating layer
On wall.
4. a kind of high-temperature flue gas baffle door drive mechanism according to claim 3, characterized in that axle envelope include outer tube,
End cap, graphite-seal ring are limited, outer tube one end is equipped with outside flanging, and the outer tube other end is equipped with inside in-flanges,
Limit end cap is connected on flanging, and flanging is connected on wallboard by connecting plate, equipped with liner plate on the inside of wallboard, liner plate and interior
Abutment ring is installed between flange, graphite-seal ring is mounted in outer tube, graphite-seal ring and limit end cap between 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, characterized in that be equipped with axis in shaft
It holds, bearing is securedly mounted on the outside of wallboard, and positioning anchor ear is equipped between shaft upper bearing (metal) and transmission shaft, positions anchor ear and bearing
Between and positioning anchor ear and transmission shaft between be equipped with gap.
6. a kind of high-temperature flue gas baffle door drive mechanism according to claim 1, characterized in that shaft is in step shaft-like knot
Structure, shaft bigger diameter end are inserted into transmission shaft open end, and high temperature resistant flat key is connected between shaft and transmission shaft inner wall.
7. according to claim 1 to a kind of high-temperature flue gas baffle door drive mechanism described in 6 any one, characterized in that air inlet
Connector connects air blower by pipeline.
8. according to claim 1 to a kind of high-temperature flue gas baffle door drive mechanism described in 6 any one, characterized in that outlet
Connector passes through pipeline joint noise reduction device.
9. according to claim 1 to a kind of high-temperature flue gas baffle door drive mechanism described in 6 any one, characterized in that transmission
On axis outer wall and rocker arm link position is equipped with reinforcing ring.
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 CN107152553A (en) | 2017-09-12 |
| CN107152553B true CN107152553B (en) | 2019-01-11 |
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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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107152553B (en) |
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 |
|---|---|
| CN107152553A (en) | 2017-09-12 |
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