CN202227861U - Smoke baffle door driving transmission system - Google Patents
Smoke baffle door driving transmission system Download PDFInfo
- Publication number
- CN202227861U CN202227861U CN2011202807021U CN201120280702U CN202227861U CN 202227861 U CN202227861 U CN 202227861U CN 2011202807021 U CN2011202807021 U CN 2011202807021U CN 201120280702 U CN201120280702 U CN 201120280702U CN 202227861 U CN202227861 U CN 202227861U
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- China
- Prior art keywords
- baffle
- transmission system
- baffle door
- baffle plate
- drive device
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Abstract
The utility model relates to the technical field of hydraulic mechanism control, in particular to a smoke baffle door driving transmission system, solving the problems of existing smoke baffle doors that the baffle opening and closing time can not be adjusted, the function of quick closing can not be realized and the like. The smoke baffle door driving transmission system comprises a hydraulic driving system and a baffle arranged in the smoke baffle door, and is characterized in that the hydraulic driving system is connected with double driving devices, each driving device is internally provided with two oil cylinders with two movable ends arranged opposite to each other, the oil cylinders drive a rotating shaft, two rockers are arranged vertically to the rotating shaft and positioned in the middle part of the rotating shaft, one end of the rocker is hinged with a connecting rod, the other end of the connecting rod is hinged with the baffle, and an energy accumulator is arranged in the hydraulic driving system. With the smoke baffle door driving transmission system, stepless adjustment on the opening and closing time of the baffle and quick closing of the baffle are realized, the stress condition of the baffle is optimized, and smaller torque is provided to realize the opening and the closing of the baffle.
Description
Technical field
The utility model relates to hydraulic mechanism control technology field, and the gas baffle door that relates in particular in a kind of combustion engine power station unit drives transmission system.
Background technology
The 9FA level is one of highest ranking of current gas turbine, have environmental protection, energy-conservation, the thermal efficiency is high and characteristics such as advanced technology, the gas bypass system is the hinge that connects gas turbine and waste heat boiler, gas baffle door is the nucleus equipment of bypath system.Other other bypath system of level, like 6B, 6FA, 9E, it is that electric operator drives that the gas baffle door drive mechanism adopted more, directly drives baffle plate; Mostly drive disk assembly is the monolithic single-shaft configuration, and door-hinge is positioned at the top of baffle door.The problem that existing gas baffle door exists has: the baffle plate opening and closing time can not be regulated, and can not realize the quick closedown function; The mechanical drive gear easy abrasion is difficult for changing, and is prone to during operation produce vibration, and impact resistance is poor; Very big moment of torsion need be provided, could realize the rotation of baffle plate.Like patent announcement number is a kind of gas baffle door of CN101220959A, has three smoke uptakes and is installed in the baffle door in the flue, and baffle door is the monolithic single-shaft configuration; Door-hinge is positioned at the top of baffle door, horizontal arrangement, and baffle door can be done 0 °～90 ° rotations around door-hinge; The baffle door of this structure takes up room bigger; Realize that the required moment of torsion of switch door is big, and can only can not realize the two-way cigarette of leading of waste heat boiler and by-pass flue as single functional opening the door.
Summary of the invention
The purpose of the utility model is in order to solve the problem that above-mentioned existing gas baffle door exists; Provide a kind of gas baffle door of reasonable in design to drive transmission system; It is provided with hydraulic control station, driving oil cylinder and transmission mechanism, through Hydraulic Station control driving oil cylinder, and in the transmission process of rocking bar, connecting rod; Accomplish the conversion of baffle plate upper-lower position, reach the purpose of control flue gas trend.
The above-mentioned technical problem of the utility model mainly is able to solve through following technical proposals: a kind of gas baffle door drives transmission system; Comprise fluid pressure drive device, be assemblied in the baffle plate in the gas baffle door, it is characterized in that described fluid pressure drive device is provided with double-drive device, be provided with two movable ends in each drive unit and push up oil cylinder mutually arranging; The hydraulic oil cylinder driving turning cylinder; Two rocking bars are established in middle part vertical with turning cylinder and that be positioned at turning cylinder, an end articulated linkage of rocking bar, and the other end and the baffle plate of connecting rod are hinged; Be provided with loop circuit, normal pass and emergency cut-off loop in the fluid pressure drive device, emergency cut-off is provided with accumulator in the loop.Be provided with hydraulic control station, driving oil cylinder and support section in the fluid pressure drive device; Transmission mechanism is made up of parts such as driving shaft, turning cylinder, rocking bar, connecting rods; The bilateral Driven by Hydraulic Cylinder of top to arranging; Be one to push away one and draw two oil cylinders during work, the cylinder force stepless action operates steadily on turning cylinder; Be provided with two power oil pump in the hydraulic system, two power oil pump double-drive device that links respectively, but baffle plate switch time and emergency cut-off time continuous stepless regulate, but equally also step-less adjustment of driving torque, simple and quick convenience; Oil cylinder two ends band buffer structure has improved impact resistance; Oil cylinder is provided with self-aligning bearing, and oil cylinder can float with axle during thermal expansion; Situation about being not closed completely because of mechanical wear can not take place.Dispose the accumulator of promptly closing the door in the fluid pressure drive device, when unit is in an emergency, can discharge the energy of accumulator, the emergency cut-off baffle door, safe and reliable.
As preferably, described baffle plate adopts single blade construction, and baffle plate is suspended on the flap seat, and baffle plate is provided with two engaging lug seats, two engaging lug seats respectively with two rod hinge connections.Adopt two driving shafts, single turning cylinder to add bar linkage structure in the transmission device; Baffle plate is suspended on the flap seat, and baffle plate whole motion process suspended axle only receives the baffle plate self gravitation, and turning cylinder does not bear flexural stress basically, only receives the pure torsion effect, and stressing conditions is simple.
As preferably, the movable end of oil cylinder connects rocking arm, and an end of power transmission shaft is sleeved in the interstitial hole of rocking arm, and the other end of power transmission shaft is connected with turning cylinder.The through hole that establish the rocking arm middle part, an end of this through hole and power transmission shaft is fixed, the oil cylinders that the two ends of rocking arm are respectively equipped with and two are pushed up arranging mutually, this compact conformation needs fewly with the space, can realize that the torque drive that only provides less accomplishes the rotation purpose of baffle plate.
As preferably, described two rocking bars are parallel to each other, and an end suit of rocking bar is fixed on the external diameter of turning cylinder.Two transmission stress balances operate steadily.
As preferably, be provided with loop circuit, normal pass in the described fluid pressure drive device, close the oil inlet end of loop circuit and normally close one group of emergency cut-off loop of a fuel-displaced port position parallel connection in the loop circuit normal, be provided with the baffle position switch in the oil cylinder control oil channel.Formed three grades of bufferings by limit switch in control of two sections pressure in oil cylinder, the Hydraulic Station and the Sensor box, the safe operation of protection unit improves the reliability of Combined Cycle Unit.
As preferably, be provided with the manual operation pump in the described fluid pressure drive device.Manual open and close flapper valve in the time of necessary.
Aspect material selection, take into full account fume high-temperature, corrosivity and flue gas the characteristic of washing away to material.
Effective effect of the utility model is: the step-less adjustment of baffle plate opening and closing time is realized in (1), improves the handling and efficient of gas baffle door; (2) structure of simplification gas baffle door, the stressing conditions of optimization baffle plate; (3) have the quick closedown function of baffle plate, improve the equipment reliability of operation, the minimizing accident takes place.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Fig. 2 is a kind of gas baffle door hydraulic drive mechanism sketch map of the utility model.
Fig. 3 is the plan structure sketch map of Fig. 2 of the utility model.
Fig. 4 is a kind of gas baffle door transmission structures sketch map of the utility model.
Fig. 5 is a kind of gas baffle door hydraulic control principle sketch of the utility model.
Among the figure: 1. gas baffle door, 2. engaging lug seat, 3. baffle plate, 4. oil cylinder, 5. support; 6. rocking bar, 7. power transmission shaft, 8. turning cylinder, 9. connecting rod, 10. baffle position switch; 11. accumulator, 12. rocking arms, A. emergency cut-off loop, B. normally closes the loop circuit.
The specific embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically the technical scheme of the utility model.
Referring to Fig. 1, a kind of gas baffle door of present embodiment drives transmission system, is made up of a cover fluid pressure drive device, transmission mechanism and gas baffle door 1, baffle plate 3; Comprise two groups of oil pumps in the fluid pressure drive device, fluid pressure drive device is connected with double-drive device and promptly adopts bilateral Driven by Hydraulic Cylinder, is provided with two movable ends in each drive unit and pushes up the oil cylinder 4 to arranging mutually; Like Fig. 2, shown in Figure 3, oil cylinder 4 is fixed on the support 5, and the movable end of oil cylinder 4 connects rocking arm 12; One end suit of power transmission shaft 7 is fixed in the hole of rocking arm 12 middle parts; The other end of power transmission shaft 7 drives turning cylinder 8, and is as shown in Figure 4, and the rocking bar 6 of two parallel layouts is established in middle part vertical with turning cylinder 8 and that be positioned at turning cylinder 8; The other end articulated linkage 9 of rocking bar 6, the engaging lug seat 2 on the other end of connecting rod 9 and the baffle plate 3 is hinged.
Referring to Fig. 5; Two groups of oil pump output circuit branches are set as two; One is the normal loop circuit B of closing, and another is emergency cut-off loop A, normally closes two oil circuits that loop circuit B draws respectively to oil cylinder 4; The output circuit of emergency cut-off loop A is drawn oil circuit with normal of closing loop circuit B and is connected, and in the A of emergency cut-off loop, accumulator 11 is housed.
During normal running, baffle plate 3 begins to rotate, and baffle plate 3 rotating torques are ascending, reduce gradually again, compresses until sealing mechanism, and its rotational angle can show dynamically that simultaneously the maximum rotation angle of rocking arm 12 reaches 130 ° at on-site control and master-control room.
The foregoing description is the explanation to the utility model, is not the qualification to the utility model, any protection domain that structure after the simple transformation of the utility model, technology is all belonged to the utility model.
Claims (6)
1. a gas baffle door drives transmission system; The baffle plate (3) that comprise fluid pressure drive device, is assemblied in gas baffle door in (1); It is characterized in that described fluid pressure drive device is provided with double-drive device; Be provided with two movable ends in each drive unit and push up the oil cylinder (4) to arranging mutually, oil cylinder (4) drives turning cylinder (8), and two rocking bars (6) are established in middle part vertical with turning cylinder (8) and that be positioned at turning cylinder (8); One end articulated linkage (9) of rocking bar (6); The other end of connecting rod (9) and baffle plate (3) are hinged, are provided with loop circuit, normal pass (B) and emergency cut-off loop (A) in the fluid pressure drive device, are provided with accumulator (11) in emergency cut-off loop (A).
2. gas baffle door according to claim 1 drives transmission system; It is characterized in that described baffle plate (3) adopts single blade construction; Baffle plate (3) is suspended on the flap seat; Baffle plate (3) is provided with two engaging lug seats (2), and two engaging lug seats (2) are hinged with two connecting rods (9) respectively.
3. gas baffle door according to claim 1 and 2 drives transmission system; The movable end that it is characterized in that described oil cylinder (4) connects rocking arm (12); One end of power transmission shaft (7) is sleeved in the interstitial hole of rocking arm (12), and the other end of power transmission shaft (7) is connected with turning cylinder (8).
4. gas baffle door according to claim 1 and 2 drives transmission system, it is characterized in that described two rocking bars (6) are parallel to each other, and an end suit of rocking bar (6) is fixed on the external diameter of turning cylinder (8).
5. gas baffle door according to claim 1 drives transmission system; It is characterized in that the oil inlet end of loop circuit, described normal pass (B) and normally close fuel-displaced port position parallel connection one group of emergency cut-off loop (A) in the loop circuit, be provided with baffle position switch (10) in oil cylinder (4) control oil channel.
6. drive transmission system according to claim 1 or 5 described gas baffle doors, it is characterized in that being provided with in the described fluid pressure drive device manual operation pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202807021U CN202227861U (en) | 2011-08-04 | 2011-08-04 | Smoke baffle door driving transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202807021U CN202227861U (en) | 2011-08-04 | 2011-08-04 | Smoke baffle door driving transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202227861U true CN202227861U (en) | 2012-05-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202807021U Expired - Lifetime CN202227861U (en) | 2011-08-04 | 2011-08-04 | Smoke baffle door driving transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202227861U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312633A (en) * | 2011-08-04 | 2012-01-11 | 杭州杭锅通用设备有限公司 | Drive transmission system for smoke gas baffle plate door |
| CN104197351A (en) * | 2014-09-18 | 2014-12-10 | 无锡市华通电力设备有限公司 | Shell structure of high-temperature smoke baffle door |
| CN106524204A (en) * | 2016-11-01 | 2017-03-22 | 山东电力建设第工程公司 | Turning plate type air door for heat-engine plant air and flue gas ducts |
| CN107152553A (en) * | 2017-05-23 | 2017-09-12 | 杭州杭锅通用设备有限公司 | A kind of high-temperature flue gas baffle door drive mechanism |
| CN107270318A (en) * | 2017-05-23 | 2017-10-20 | 杭州杭锅通用设备有限公司 | A kind of driving structure of high-temperature flue gas baffle door |
-
2011
- 2011-08-04 CN CN2011202807021U patent/CN202227861U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312633A (en) * | 2011-08-04 | 2012-01-11 | 杭州杭锅通用设备有限公司 | Drive transmission system for smoke gas baffle plate door |
| CN104197351A (en) * | 2014-09-18 | 2014-12-10 | 无锡市华通电力设备有限公司 | Shell structure of high-temperature smoke baffle door |
| CN104197351B (en) * | 2014-09-18 | 2017-04-26 | 无锡市华通电力设备有限公司 | Shell structure of high-temperature smoke baffle door |
| CN106524204A (en) * | 2016-11-01 | 2017-03-22 | 山东电力建设第工程公司 | Turning plate type air door for heat-engine plant air and flue gas ducts |
| CN107152553A (en) * | 2017-05-23 | 2017-09-12 | 杭州杭锅通用设备有限公司 | A kind of high-temperature flue gas baffle door drive mechanism |
| CN107270318A (en) * | 2017-05-23 | 2017-10-20 | 杭州杭锅通用设备有限公司 | A kind of driving structure of high-temperature flue gas baffle door |
| CN107152553B (en) * | 2017-05-23 | 2019-01-11 | 杭州杭锅通用设备有限公司 | A kind of high-temperature flue gas baffle door drive mechanism |
| CN107270318B (en) * | 2017-05-23 | 2019-02-26 | 杭州杭锅通用设备有限公司 | A kind of driving structure of high-temperature flue gas baffle door |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |