CN110230705A - A kind of gas turbine valve switch - Google Patents
A kind of gas turbine valve switch Download PDFInfo
- Publication number
- CN110230705A CN110230705A CN201910551435.8A CN201910551435A CN110230705A CN 110230705 A CN110230705 A CN 110230705A CN 201910551435 A CN201910551435 A CN 201910551435A CN 110230705 A CN110230705 A CN 110230705A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve switch
- piston
- gas turbine
- venthole
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/12—Cooling of plants
- F02C7/14—Cooling of plants of fluids in the plant, e.g. lubricant or fuel
- F02C7/141—Cooling of plants of fluids in the plant, e.g. lubricant or fuel of working fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/12—Cooling of plants
- F02C7/16—Cooling of plants characterised by cooling medium
- F02C7/18—Cooling of plants characterised by cooling medium the medium being gaseous, e.g. air
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/222—Shaping of the valve member
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- 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
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
-
- 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
Abstract
A kind of gas turbine valve switch, including the piston being disposed axially in shell, intake interface and interface of pressure measurement are offered on shell, air inlet pipe fitting is set on intake interface, pressure signal device connector is provided on interface of pressure measurement, one end of piston connects air inlet pipe fitting, and the other end connects reset spring, moves back and forth under the action of suction press is with spring force；The middle part of piston and one end of rocker arm are hinged, and the other end of rocker arm is connected on valve switch axis by pin, and valve switch axis protrudes into air coolant valve venthole and is attached with valve blade；Rocker arm carries out reciprocating rotary under the drive of piston, and rocker arm can drive valve blade to carry out reciprocating rotation in air coolant valve venthole, realize opening or closing for air coolant valve venthole by valve switch axis.Structure of the invention is ingenious in design, and function is realized simple and convenient.
Description
Technical field
The invention belongs to gas turbine air cooling systems, and in particular to a kind of gas turbine valve switch.
Background technique
Low-pressure turbine blade temperature is high when gas turbine works, and is cooled down, in gas turbine work to low pressure
The cooling air of turbine offer radial clearance, it is therefore necessary to design a kind of cooling valve of air and be used to after N grades of high-pressure compressor
Cooling low-pressure turbine is removed in pumping, while adjusting high-pressure turbine radial clearance, stops providing to low-pressure turbine when engine is shut down
The cooling air of radial clearance.The control system of the cooling valve of air is according to pressure tracking operating condition after high pressure mechanism of qi to guarantee that air is cold
But the work of valve.
Summary of the invention
It is an object of the invention to be directed to above-mentioned the problems of the prior art, a kind of gas turbine valve switch, energy are provided
Enough transform linear motions by piston are the axial rotation motion of valve blade, realize the opening and closing of cooling air valve.
To achieve the goals above, the technical solution adopted by the present invention are as follows: including the piston being disposed axially in shell,
Intake interface and interface of pressure measurement are offered on shell, and air inlet pipe fitting is set on intake interface, is set on interface of pressure measurement
It is equipped with pressure signal device connector, one end of piston connects air inlet pipe fitting, and the other end of piston connects reset spring, in air inlet pipe
It moves back and forth under the action of pressure and spring force；The middle part of piston and one end of rocker arm are hinged, and the other end of rocker arm is logical
It crosses pin to be connected on valve switch axis, valve switch axis protrudes into air coolant valve venthole, and is connected with valve blade
It connects；The rocker arm carries out reciprocating rotary under the drive of piston, and rocker arm can drive valve blade to exist by valve switch axis
Reciprocating rotation is carried out in air coolant valve venthole, realizes opening or closing for air coolant valve venthole.
The shell of air coolant valve venthole is socket shape, is provided with method on the periphery of air coolant valve venthole
It is blue.
It is welded and fixed between the shell of the shell and air coolant valve venthole by bolt and bracket.
The valve switch axis is horizontally through valve venthole and passes sequentially through sealing baffle and axle end caps progress
It is fixed.
Valve switch axis carries out centering by axle sleeve and prevents axial displacement, and axle sleeve can be determined simultaneously for sealing baffle
Position.
Piston is connected by stroke limit baffle with air inlet pipe fitting, and stroke limit baffle center opens up connection intake interface
Through-hole.
The valve blade is fixedly connected on the axle body of valve switch axis by rivet.
Pistons end is connected by one end of spring guide piece and reset spring, and the other end of reset spring passes through positioning spiral shell
Cap is fixed.
The valve blade is from the sum of rotational angle completely closed is opened fully to less than 90 degree.
Bearing, the external installation sleeve of bearing are provided between the end and piston of the rocker arm.
Compared with prior art, the present invention is with following the utility model has the advantages that the air come from high-pressure compressor is sent into air inlet
Pipe fitting, when pressure reaches A, the piston in shell starts to move, and rocker arm opens the transform linear motion of piston for valve
The rotation of axis is closed, valve blade opens air coolant valve venthole, and air is used for the cooling of low-pressure turbine radial clearance.Work as pressure
When power further reaches B, piston is moved to the unlatching of pressure signal device connector channel.When pressure drops to C, due to reset spring
Elastic force, the piston in shell start to return, and valve blade begins to shut off air coolant valve venthole, when pressure is further
It reduces, valve blade completely closes air coolant valve venthole.Structure of the invention is ingenious in design, can transport the straight line of piston
Turn turns to the axial rotation motion of valve blade, and then realizes the opening and closing of cooling air valve, and function is realized convenient.
Detailed description of the invention
The positive view of Fig. 1 gas turbine valve switch of the present invention；
The sectional view of Fig. 2 gas turbine valve switch of the present invention；
The schematic diagram of internal structure of Fig. 3 air coolant valve venthole；
In attached drawing: 1- reset spring；2- priming lever spring；3- piston；4- pressure signal device connector；5- pressure signal device connector
Pedestal；6- stroke limit baffle；7- air inlet pipe fitting；8- positioning screw cap；9- pin；10- shell；11- rocker arm；The shaft end 12- spiral shell
Cap；13- sealing baffle；14- flange hole；15- axle sleeve；16- valve blade；17- flange；18- valve switch axis；19- locks wire hole；
20- fuse；The first rivet of 21-；The second rivet of 22-；The first bolt of 23-；The second bolt of 24-；25- valve switch axis connection spiral shell
It is female；26- shell；27- blade closed position；28- blade open position；29- valve venthole；30- shell fixed interface；31-
Bearing.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings.
Referring to Fig. 1-3, gas turbine valve switch of the invention includes the piston 3 being disposed axially in shell 10, shell
It is solid by the first bolt 23, the second bolt 24 and bracket welding between body 10 and the shell 26 of air coolant valve venthole 29
It is fixed.
Intake interface and interface of pressure measurement are offered on shell 10, air inlet pipe fitting 7 is set on intake interface, and pressure is surveyed
Pressure signal device connector 4 is provided on amount interface, one end of piston 3 connects air inlet pipe fitting 7, and the other end connects reset spring 1,
Piston 3 is connected by stroke limit baffle 6 with air inlet pipe fitting 7, and the center of stroke limit baffle 6 opens up connection intake interface
Through-hole.Meanwhile piston 3 is connect by spring guide piece 32 with one end of reset spring 1, it is fixed that the other end of reset spring 1 passes through
Position nut 8 is fixed.Piston 3 moves back and forth under the action of suction press is with spring force.
The middle part of piston 3 and one end of rocker arm 11 are hinged, are provided with bearing 31 between the end and piston 3 of rocker arm 11 and pacify
Equipped with priming lever spring 2, the outside of bearing 31 is fixed by sleeve.The other end of rocker arm 11 is fixedly connected on valve by pin 9
On switch shaft 18, valve switch axis 18 protrudes into air coolant valve venthole 29, and is attached with valve blade 16.Valve leaf
Piece 16 is fixedly connected on the axle body of valve switch axis 18 by the first rivet 21 and the second rivet 22.
The shell 26 of air coolant valve venthole 29 is socket shape, is set on the periphery of air coolant valve venthole 29
It is equipped with flange 17 and opens up multiple flange holes 14.Shell 26 is provided with fuse 20 on flange mounting surface, and fuse 20 is used for
Fixed valve switch shaft 18 is located at the connector at 26 both ends of shell, and fuse 20 passes through valve switch axis connection nut 25 along nut
It twists into a rope outside and is then passed through opposite valve switch axis connection nut 25, be fixed by locking wire hole 19.
Valve switch axis 18 is horizontally through valve venthole 29 and passes sequentially through sealing baffle 13 and the progress of axle end caps 12
It is fixed.Valve switch axis 18 carries out centering by axle sleeve 15 and prevents axial displacement, and axle sleeve 15 can be simultaneously sealing baffle 13
It is positioned.Rocker arm 11 carries out reciprocating rotary under the drive of piston 3, and rocker arm 11 can be by valve switch axis 18 with movable valve
Blade 16 carries out reciprocating rotation in air coolant valve venthole 29, realizes the opening and closing of air coolant valve venthole 29.
The air come from high-pressure compressor is sent into air inlet pipe fitting 7.When pressure reaches A, piston 3 starts to move.Rocker arm
The transform linear motion of 11 pistons 3 is the rotation of valve switch axis 18.Valve blade 16 starts to open, and air is low for cooling down
It presses turbine and adjusts high-pressure turbine radial clearance.When pressure reaches B, piston 3 is moved to the unlatching of signal pipe connector channel.
When air inlet pipe fitting 7 is passed through gas of the pressure by liter, gas push piston 3 overcomes 1 active force of reset spring to the left
Movement, the movement of piston 3 drive rocker arm 11 to rotate by bearing 31, and valve switch axis 18 makes shell group with 11 synchronous rotary of rocker arm
Valve blade 16 turns an angle M when reaching blade open position 28 in part, and the cooling valve of air is opened.When needing air cooling
When valve is closed, when stopping supplying to air inlet pipe fitting 7, piston 3 restores under the active force of reset spring 1 to right end initial bit
Set, in motion process drive rocker arm 11 rotate, make valve blade 16 turn an angle N reach blade closed position 27, air
Cooling valve is closed, wherein M+N < 90 degree.When it is X that pipe fitting 7, which enters pressure, valve blade 16 is in completely open position.
When it is Y that pipe fitting 7, which enters pressure, due to the elasticity of priming lever spring 2, valve blade 16 is begun to shut off.It is pressed when pipe fitting 7 enters
When power is Z, valve blade 16 is in the position completely closed.
The above is only presently preferred embodiments of the present invention, not to do restriction in any form to the present invention,
It will be apparent to a skilled person that technical solution of the present invention is also under the premise of not departing from basic idea of the present invention
Several modification and replacement can be carried out, these modifications and replacement also each fall within the protection scope delimited by submitted claim
Within.
Claims (10)
1. a kind of gas turbine valve switch, it is characterised in that: including the piston (3) being disposed axially in shell (10), shell
Intake interface and interface of pressure measurement are offered on body (10), air inlet pipe fitting (7) are set on intake interface, interface of pressure measurement
On be provided with pressure signal device connector (4), one end of piston (3) connects air inlet pipe fitting (7), and the other end connects reset spring
(1), it moves back and forth under the action of suction press is with spring force；The middle part of piston (3) and the one end of rocker arm (11)
Hingedly, the other end of rocker arm (11) is connected on valve switch axis (18) by pin (9), and valve switch axis (18) protrudes into air
Coolant valve venthole (29), and be attached with valve blade (16)；The rocker arm (11) under the drive of piston (3) into
Row reciprocating rotary, rocker arm (11) can drive valve blade (16) in air coolant valve venthole by valve switch axis (18)
(29) reciprocating rotation is carried out in, realizes opening or closing for air coolant valve venthole (29).
2. gas turbine valve switch according to claim 1, it is characterised in that: air coolant valve venthole (29)
Shell (26) is socket shape, and flange (17) are provided on the periphery of air coolant valve venthole (29).
3. gas turbine valve switch according to claim 2, it is characterised in that: the shell (10) and air is cooling
It is welded and fixed between the shell (26) of valve venthole (29) by bolt and bracket.
4. gas turbine valve switch according to claim 2, it is characterised in that: the valve switch axis (18) is laterally
Across valve venthole (29) and pass sequentially through sealing baffle (13) and axle end caps (12) are fixed.
5. gas turbine valve switch according to claim 4, it is characterised in that: the valve switch axis (18) passes through
Axle sleeve (15) carries out centering and prevents axial displacement, and axle sleeve (15) can be positioned simultaneously for sealing baffle (13).
6. gas turbine valve switch according to claim 1, it is characterised in that: the piston (3) is limited by stroke
Position baffle (6) is connected with air inlet pipe fitting (7), and the center of stroke limit baffle (6) opens up the through-hole of connection intake interface.
7. gas turbine valve switch according to claim 1, it is characterised in that: the valve blade (16) passes through riveting
Nail is fixedly connected on the axle body of valve switch axis (18).
8. gas turbine valve switch according to claim 1, it is characterised in that: led by spring the end of piston (3)
It is connect to part (32) with one end of reset spring (1), the other end of reset spring (1) is fixed by positioning screw cap (8).
9. gas turbine valve switch according to claim 1, it is characterised in that: the valve blade (16) is from complete
It opens to the sum of the rotational angle completely closed less than 90 degree.
10. gas turbine valve switch according to claim 1, it is characterised in that: the end of the rocker arm (11) and work
It is provided with bearing (31) between plug (3), the outside of bearing (31) is fixed by sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910551435.8A CN110230705B (en) | 2019-06-24 | 2019-06-24 | Valve switch of gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910551435.8A CN110230705B (en) | 2019-06-24 | 2019-06-24 | Valve switch of gas turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110230705A true CN110230705A (en) | 2019-09-13 |
| CN110230705B CN110230705B (en) | 2020-12-01 |
Family
ID=67857262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910551435.8A Active CN110230705B (en) | 2019-06-24 | 2019-06-24 | Valve switch of gas turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110230705B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915604A (en) * | 2021-10-12 | 2022-01-11 | 安徽信息工程学院 | Debugging structure for air door baffle of boiler |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1469709A (en) * | 1973-04-30 | 1977-04-06 | Nrg Inc | Engine |
| CN2566005Y (en) * | 2002-07-04 | 2003-08-13 | 沈阳黎明航空发动机(集团)有限责任公司 | Air-bleed valve for combustion engine gas generator |
| CN102853092A (en) * | 2012-09-26 | 2013-01-02 | 济南百惠汽车零部件有限责任公司 | Composite air cylinder type constant-pressure butterfly-shaped valve |
| CN103306826A (en) * | 2013-05-17 | 2013-09-18 | 杭叉集团股份有限公司 | Double control air inlet stop valve |
| US20180245508A1 (en) * | 2017-02-28 | 2018-08-30 | Toyota Jidosha Kabushiki Kaisha | Variable compression ratio mechanism and internal combustion engine |
-
2019
- 2019-06-24 CN CN201910551435.8A patent/CN110230705B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1469709A (en) * | 1973-04-30 | 1977-04-06 | Nrg Inc | Engine |
| CN2566005Y (en) * | 2002-07-04 | 2003-08-13 | 沈阳黎明航空发动机(集团)有限责任公司 | Air-bleed valve for combustion engine gas generator |
| CN102853092A (en) * | 2012-09-26 | 2013-01-02 | 济南百惠汽车零部件有限责任公司 | Composite air cylinder type constant-pressure butterfly-shaped valve |
| CN103306826A (en) * | 2013-05-17 | 2013-09-18 | 杭叉集团股份有限公司 | Double control air inlet stop valve |
| US20180245508A1 (en) * | 2017-02-28 | 2018-08-30 | Toyota Jidosha Kabushiki Kaisha | Variable compression ratio mechanism and internal combustion engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915604A (en) * | 2021-10-12 | 2022-01-11 | 安徽信息工程学院 | Debugging structure for air door baffle of boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110230705B (en) | 2020-12-01 |
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