CN107893702A - A kind of gas turbine fuel oil regulating device - Google Patents
A kind of gas turbine fuel oil regulating device Download PDFInfo
- Publication number
- CN107893702A CN107893702A CN201711367899.0A CN201711367899A CN107893702A CN 107893702 A CN107893702 A CN 107893702A CN 201711367899 A CN201711367899 A CN 201711367899A CN 107893702 A CN107893702 A CN 107893702A
- Authority
- CN
- China
- Prior art keywords
- valve element
- gas turbine
- bushing
- regulating device
- fuel oil
- 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
- 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
- F02C7/22—Fuel supply systems
Abstract
The invention discloses a kind of gas turbine fuel oil regulating device, its function is to start in gas turbine, accelerate and adjust when permanent rotating speed is run the fuel delivery of fuel system, and during gas turbine operation, rotating speed is gradually increasing, fly weight component is centrifuged due to the effect of centrifugal force, one downward thrust of valve element can be given.In the presence of elastomer holding power, lever force is less than elastomer holding power during the slow-speed of revolution, and valve element is 0 with the circulation area that bushing matches；When turn up to a certain extent after, valve element can move down, and the circulation area to match with valve element bushing can become larger.When gas turbine reaches rated speed, valve element reaches maximum with the circulation area that bushing matches.When gas turbine exceedes rated speed, valve element continues to move down, but the circulation area that valve element matches with bushing can taper into so that gas turbine rotary speed declines, to reach the purpose for preventing gas turbine excess revolutions.
Description
Technical field
The present invention relates to gas turbine fuel system field, especially, is related to a kind of gas turbine fuel system combustion gas wheel
Machine fuel oil regulating device.
Background technology
Gas turbine fuel system is gas turbine important system composition, its fuel oil as needed for rule offer gas turbine,
Ensure gas turbine normal starting and maintenance gas turbine constant speed operating under any operating mode in working range, and outwardly carry
For power.The fuel feeding accuracy of measurement of fuel system directly determines the starting successful and speed stability of gas turbine, and fuel feeding
Accuracy of measurement depends on the performance of gas turbine fuel oil regulating device.
The fuel delivery of gas turbine fuel oil regulating device is the stream matched by the adjusting spool of metering valve with bushing type hole
Logical area, flow through the fuel oil pressure difference of circulation area to determine.The timing of operating mode one, it is certain to flow through the fuel oil pressure difference of circulation area,
Fuel delivery is determined by circulation area, by changing the position of valve element, can obtain different circulation areas, and how to drive regulation
Valve element is in desired position, then needs spool governor motion to realize.The spool governor motion being widely used at present is motor
Type of drive and servo control mechanism driving, motor driving are limited by radiating, service life and control accuracy of motor etc., it is impossible to
Meet requirement of the gas turbine to gas turbine fuel oil regulating device；Servo-actuating device is limited by low temperature adaptability and resistance to
Contaminative, requirement can not be met.
The content of the invention
For the drawbacks described above and deficiency of prior art, the present invention is intended to provide a kind of gas turbine fuel oil regulating device,
Its function is that the fuel delivery of fuel system is adjusted when gas turbine starting, acceleration and permanent rotating speed are run, and is provided for gas turbine
Suitable fuel oil, the device can improve the confession accuracy, response speed and service life of fuel system, have compact-sized, smart
The advantages of skilful and there is outstanding performance.
The present invention is that technical scheme is used by solving its technical problem：
A kind of gas turbine fuel oil regulating device, including housing and be arranged in the housing driving head assembly, from
Heart fly weight component, valve element, elastomer, drag board, it is characterised in that
The top of the housing sets oil inlet, and bottom outside is fixedly installed a valve element sliding sleeve, set in the valve element sliding sleeve
Put a height adjustable and open top, the valve element bushing of bottom lock；
Drive end at the top of the driving head assembly stretches out the outer power source machinery with outside of the housing and is connected, the drive
The bottom of dynamic head assembly is connected with the top mechanism of the centrifugation fly weight component；
The valve element is that a top is provided with valve element top plate, inside and sets vittate rod-like members, the valve element top plate it is upper
Surface contact sets institute on the top lower surface of the centrifugation fly weight component between the valve element top plate and the drag board
State elastomer, the central through hole of the valve element through the drag board is stretched into the inner chamber of the valve element bushing, and can be along described
The inwall of valve element bushing slides up and down, and circumferential side wall is provided with the oil-feed connected with internal galleries at the top of the body of rod of the valve element
Hole, post circumferential side wall be provided with internal galleries oil outlet, the circumferential side wall of the valve element bushing is provided with and valve element
The oil-through-hole that is adapted of oil outlet, accordingly, also be provided with the circumferential side wall of the valve element sliding sleeve and the valve element bushing
The fuel outlet that oil-through-hole is adapted；
When the rotating speed of the driving head assembly be less than a preset value, circulating face that the valve element and valve element bushing match
Product remains 0；When the rotating speed of the driving head assembly reaches the preset value and is gradually increased to rated speed, the valve element
The circulation area to match with valve element bushing is gradually increased to maximum opening by 0；When the rotating speed of the driving head assembly exceedes volume
When determining rotating speed, the circulation area that the valve element matches with valve element bushing is gradually reduced by maximum opening, wherein, the driving head
The rated speed of component corresponds to the rated speed of gas turbine.
Preferably, the oil inlet of the housing upper and the fueller of upstream pass through pipeline connection.
Preferably, the fueller includes fuel pump and the fuel filter being arranged at fuel pump outlet.
Preferably, the drive end stretching housing at the top of the driving head assembly is outer and the driving shaft mechanical of fuel pump connects
Connect.
Preferably, the valve element sliding sleeve is an open top, the cylindrical tube structure of bottom lock.
Preferably, an adjusting screw for rated speed, the top top of the adjusting screw for rated speed are set on the housing
The bottom of the drag board is against, to adjust the height of the drag board in the housing.
Preferably, the bottom of valve element bushing sets one to accelerate adjusting screw, and the top contact for accelerating adjusting screw exists
The bottom of the valve element bushing, to adjust the height that the valve core lining is enclosed in valve element sliding sleeve.
Preferably, the bottom of head assembly and the ring-shaped depression mechanical snap at the top of centrifugation fly weight component are driven.
Preferably, the upper surface of the drag board sets an elastomer seat, and the lower end of the elastomer is supported on elastomer
The through hole for setting a shape size to be adapted with the central through hole of the drag board on seat, and in the elastomer seat.
Preferably, the valve element stretches into after passing through the through hole of the elastomer seat and the central through hole of the drag board
In the inner chamber of the valve element bushing.
Preferably, the fuel outlet in valve element sliding sleeve circumferential side wall is connected by fuel pipe with components downstream.
Preferably, the elastomer is spring.
Compared with the existing technology, gas turbine fuel oil regulating device of the invention, its function are in gas turbine starting, added
The fuel delivery of fuel system is adjusted during fast and permanent rotating speed operation, provides suitable fuel oil for gas turbine, the device can improve combustion
Confession accuracy, response speed and the service life of oil system, with the advantages of compact-sized, exquisite and with outstanding usability
Energy.
Brief description of the drawings
Fig. 1 is the structural representation of the gas turbine fuel oil regulating device of the present invention.
Embodiment
For the objects, technical solutions and advantages of the present invention are more clearly understood, develop simultaneously embodiment referring to the drawings, right
The present invention is further described.It should be noted that the implementation for not illustrating or describing in accompanying drawing, is art
In form known to a person of ordinary skill in the art.In addition, the direction term mentioned in following examples, for example, " on ", " under ", " preceding ",
" rear ", "left", "right", " top ", " bottom " etc., only it is the direction of refer to the attached drawing.Therefore, the direction term used is for illustrating simultaneously
It is non-to be used for limiting the present invention.
As shown in figure 1, the gas turbine fuel oil regulating device of the present invention, including housing 1 and the drive that is arranged in housing 1
Dynamic head assembly 2, centrifugation fly weight component 3, valve element 4, elastomer 5, drag board 6.Wherein, the top of housing 1 sets fuel inlet, should
The fueller of fuel inlet and upstream (such as fuel pump and fuel filter) is fixed by pipeline connection, the bottom outside of housing 1
One open top, the valve element sliding sleeve 10 of bottom lock are set, a height adjustable and open top, bottom are set in valve element sliding sleeve 10
The valve element bushing 8 of closing.The drive end at the top of driving head assembly 2 is stretched out outside housing 1 to be connected with power source machinery, drives head assembly
2 bottom mechanically connects with centrifugation fly weight component 3, in Fig. 1, drives the ring of the bottom and the top of centrifugation fly weight component 3 of head assembly 2
Shape female mechanical clamping.Valve element 4 is that a top is provided with valve element top plate, inside and sets vittate rod-like members, valve element top plate it is upper
Surface contact sets elastomer 5, valve element on the top lower surface of centrifugation fly weight component 3 between valve element top plate and drag board 6
4 pass through the central through hole of drag board 6 to stretch into the inner chamber of valve element bushing 8, and can be slided up and down along the inwall of valve element bushing 8, valve
Circumferential side wall is provided with fuel feed hole connect with internal galleries at the top of the body of rod of core 4, post circumferential side wall provided with it is interior
Portion's oil duct oil outlet, the circumferential side wall of valve element bushing 8 are provided with the oil-through-hole being adapted with the oil outlet of valve element 4, accordingly, valve
The fuel outlet being adapted with the oil-through-hole of valve element bushing 8 also is provided with the circumferential side wall of core sliding sleeve 10.
In addition, setting an adjusting screw for rated speed 7 on housing 1, the top contact of adjusting screw for rated speed 7 is in tension force
The bottom of plate 7, to adjust the height of drag board 6 within the case 1.The bottom of valve element bushing 8 sets one to accelerate adjusting screw 9,
Accelerate the top contact of adjusting screw 9 in the bottom of valve element bushing 8, to adjust height of the valve element bushing 8 in valve element sliding sleeve 10
Degree.
The gas turbine fuel oil regulating device of the present invention, its operation principle are：
Fuel oil enters this after the fueller (such as fuel pump, fuel filter) of upstream, by the fuel inlet on housing 1
Device is simultaneously full of the inner chamber of housing 1, and the inner chamber fuel oil of housing 1 is entered in the internal galleries of valve element 4 by the fuel feed hole on valve element 4, and
The circulation area to match by the oil-out of the end of valve element 4 and the oil outlet of valve element bushing 8 flows out.
Gas turbine fuel oil regulating device provided by the invention is typically used cooperatively with gear type fuel pump, fuel pump installation
On gas turbine reduction case, the drive shaft of fuel pump is turned by gas turbine decelerator by spline band, and the present apparatus
Driving head assembly 2 is connected with the drive shaft of fuel pump, is turned by its band.During gas turbine operation, rotating speed is gradually increasing, driving head group
Part 2 accordingly increases with the rotating speed of centrifugation fly weight component 3, and centrifugation fly weight component 3 can give valve element 4 one due to the effect of centrifugal force
Individual downward power.In the presence of elastomer holding power, lever force is less than elastomer holding power during the slow-speed of revolution, and balance will not occur
Change, i.e., valve element 4 will not move down, and its circulation area to match with valve element bushing 8 is 0, and fuel oil will not be from the present apparatus
Fuel outlet flows out；But when turn up to a certain extent after, lever force is more than the original holding power of elastomer, and balance can be broken,
Elastomer 5 needs to continue compression increase holding power to ensure to balance, and now valve element 4 can move down, itself and valve element bushing 8 phase
The circulation area matched somebody with somebody can become larger, and increasing fuel oil flows out from the fuel outlet of the present apparatus.When gas turbine reaches volume
When determining rotating speed, valve element 4 reaches maximum with the circulation area that valve element bushing 8 matches, now from the fuel outlet stream of the present apparatus
The amount of fuel gone out accordingly reaches maximum.When gas turbine exceedes rated speed, valve element 4 continues to move down, but valve element 4 with
The circulation area that valve element bushing 8 matches can taper into, and the amount of fuel now flowed out from the fuel outlet of the present apparatus accordingly subtracts
It is small so that gas turbine rotary speed declines, to reach the purpose for preventing gas turbine excess revolutions.
The present apparatus can manually adjust adjusting screw for rated speed 7 and the upper-lower position of drag board 6 is finely adjusted, and then
Regulation elasticity body have adjusted so that the lever force that valve element 4 moves down, that is, have adjusted centrifugation accordingly to the holding power of valve element 4
The centrifugal force of fly weight component 3, and centrifuge the different centrifugal force of fly weight component 3 and corresponded to different gas turbine rotary speeds.The present apparatus
It can manually adjust simultaneously and accelerate adjusting screw 9 to be finely adjusted the position of valve element bushing 8, it is ensured that when gas turbine reaches volume
When determining rotating speed, valve element 4 reaches maximum with the circulation area that valve element bushing 8 matches.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of its parts and components, it is named
Title etc. can be different.The equivalent or simple change that all construction, feature and principles according to described in inventional idea of the present invention are done, is wrapped
Include in the protection domain of patent of the present invention.Those skilled in the art can be to described specific implementation
Example is made various modifications or supplement or substituted using similar mode, structure without departing from the present invention or surmounts this
Scope as defined in the claims, protection scope of the present invention all should be belonged to.
Claims (10)
1. a kind of gas turbine fuel oil regulating device, including housing and be arranged in the housing driving head assembly, centrifugation
Fly weight component, valve element, elastomer, drag board, it is characterised in that
The top of the housing sets oil inlet, and bottom outside is fixedly installed a valve element sliding sleeve, one is set in the valve element sliding sleeve
Height adjustable and open top, the valve element bushing of bottom lock；
Drive end at the top of the driving head assembly stretches out the outer power source machinery with outside of the housing and is connected, the driving head
The bottom of component is connected with the top mechanism of the centrifugation fly weight component；
The valve element is that a top is provided with valve element top plate, inside sets vittate rod-like members, the upper surface of the valve element top plate
Contact sets the bullet on the top lower surface of the centrifugation fly weight component between the valve element top plate and the drag board
Property body, the valve element stretched into the inner chamber of the valve element bushing through the central through hole of the drag board, and can be along the valve element
The inwall of bushing slides up and down, and circumferential side wall is provided with the fuel feed hole connected with internal galleries, bar at the top of the body of rod of the valve element
Body bottom circumferential side wall is provided with fuel-displaced with valve element provided with the circumferential side wall with internal galleries oil outlet, the valve element bushing
The oil-through-hole that hole is adapted, accordingly, the oil-through-hole with the valve element bushing also is provided with the circumferential side wall of the valve element sliding sleeve
The fuel outlet being adapted；
When the rotating speed of the driving head assembly is less than a preset value, the valve element is protected with the circulation area that valve element bushing matches
Hold as 0；When the rotating speed of the driving head assembly reaches the preset value and is gradually increased to rated speed, the valve element and valve
The circulation area that core bushing matches is gradually increased to maximum opening by 0；When the rotating speed of the driving head assembly is more than specified turn
When fast, the circulation area that the valve element matches with valve element bushing is gradually reduced by maximum opening, wherein, the driving head assembly
Rated speed correspond to the rated speed of gas turbine.
2. the gas turbine fuel oil regulating device according to the claims, it is characterised in that the housing upper enters
Hydraulic fluid port and the fueller of upstream pass through pipeline connection.
3. the gas turbine fuel oil regulating device according to the claims, it is characterised in that the fueller includes
Fuel pump and the fuel filter being arranged at the fuel pump outlet.
4. the gas turbine fuel oil regulating device according to the claims, it is characterised in that the driving head assembly top
The drive end stretching housing in portion is outer and the drive shaft of fuel pump mechanically connects.
5. the gas turbine fuel oil regulating device according to the claims, it is characterised in that the valve element sliding sleeve is one
Open top, the cylindrical tube structure of bottom lock.
6. the gas turbine fuel oil regulating device according to the claims, it is characterised in that set one on the housing
Adjusting screw for rated speed, the top contact of the adjusting screw for rated speed is in the bottom of the drag board, to adjust
State the height of drag board in the housing.
7. the gas turbine fuel oil regulating device according to the claims, it is characterised in that the bottom of the valve element bushing
Portion sets one to accelerate adjusting screw, and the top contact for accelerating adjusting screw is in the bottom of the valve element bushing, to adjust
The valve core lining is enclosed on the height in valve element sliding sleeve.
8. the gas turbine fuel oil regulating device according to the claims, it is characterised in that the driving head assembly
Bottom and the ring-shaped depression mechanical snap at the top of centrifugation fly weight component.
9. the gas turbine fuel oil regulating device according to the claims, it is characterised in that the upper surface of drag board is set
An elastomer seat is put, the lower end of the elastomer is supported in elastomer seat, and a shape size is set in the elastomer seat
The through hole being adapted with the central through hole of the drag board.
10. the gas turbine fuel oil regulating device according to the claims, it is characterised in that the valve element is described in
Stretched into after the central through hole of the through hole of elastomer seat and the drag board in the inner chamber of the valve element bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711367899.0A CN107893702B (en) | 2017-12-18 | 2017-12-18 | Fuel oil adjusting device of gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711367899.0A CN107893702B (en) | 2017-12-18 | 2017-12-18 | Fuel oil adjusting device of gas turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107893702A true CN107893702A (en) | 2018-04-10 |
| CN107893702B CN107893702B (en) | 2023-05-16 |
Family
ID=61806686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711367899.0A Active CN107893702B (en) | 2017-12-18 | 2017-12-18 | Fuel oil adjusting device of gas turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107893702B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488463A (en) * | 2018-11-21 | 2019-03-19 | 中国航发西安动力控制科技有限公司 | A kind of governor weight mechanism for fluid circuit |
| CN114251091A (en) * | 2022-02-10 | 2022-03-29 | 国能神东煤炭集团有限责任公司 | Cooling device for cutting part of coal mining machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB731538A (en) * | 1952-05-30 | 1955-06-08 | W H Allen Sons & Company Ltd | Improvements in and relating to spill burner fuel supply systems |
| GB736394A (en) * | 1951-09-13 | 1955-09-07 | Fairey Aviat Co Ltd | Improvements relating to gas turbine ignition apparatus |
| US3159036A (en) * | 1963-04-11 | 1964-12-01 | Caterpillar Tractor Co | Engine speed limiting means responsive to lubricating oil pressure |
| DE2411342A1 (en) * | 1974-03-09 | 1975-09-25 | Motoren Turbinen Union | Centrifugal governor with oil pressure responsive control - drop in oil pressure resets governor to avoid damage |
| US4355610A (en) * | 1980-03-28 | 1982-10-26 | Caterpillar Tractor Co. | Servo boosted governor control for engines |
| CN207673441U (en) * | 2017-12-18 | 2018-07-31 | 中科合肥微小型燃气轮机研究院有限责任公司 | A kind of gas turbine fuel oil regulating device |
-
2017
- 2017-12-18 CN CN201711367899.0A patent/CN107893702B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB736394A (en) * | 1951-09-13 | 1955-09-07 | Fairey Aviat Co Ltd | Improvements relating to gas turbine ignition apparatus |
| GB731538A (en) * | 1952-05-30 | 1955-06-08 | W H Allen Sons & Company Ltd | Improvements in and relating to spill burner fuel supply systems |
| US3159036A (en) * | 1963-04-11 | 1964-12-01 | Caterpillar Tractor Co | Engine speed limiting means responsive to lubricating oil pressure |
| DE2411342A1 (en) * | 1974-03-09 | 1975-09-25 | Motoren Turbinen Union | Centrifugal governor with oil pressure responsive control - drop in oil pressure resets governor to avoid damage |
| US4355610A (en) * | 1980-03-28 | 1982-10-26 | Caterpillar Tractor Co. | Servo boosted governor control for engines |
| CN207673441U (en) * | 2017-12-18 | 2018-07-31 | 中科合肥微小型燃气轮机研究院有限责任公司 | A kind of gas turbine fuel oil regulating device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488463A (en) * | 2018-11-21 | 2019-03-19 | 中国航发西安动力控制科技有限公司 | A kind of governor weight mechanism for fluid circuit |
| CN109488463B (en) * | 2018-11-21 | 2021-03-26 | 中国航发西安动力控制科技有限公司 | Centrifugal counterweight mechanism for fluid pipeline |
| CN114251091A (en) * | 2022-02-10 | 2022-03-29 | 国能神东煤炭集团有限责任公司 | Cooling device for cutting part of coal mining machine |
| CN114251091B (en) * | 2022-02-10 | 2023-12-15 | 国能神东煤炭集团有限责任公司 | Cooling device for cutting part of coal mining machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107893702B (en) | 2023-05-16 |
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