CN106401664A - High-power oil braking expander - Google Patents
High-power oil braking expander Download PDFInfo
- Publication number
- CN106401664A CN106401664A CN201610393212.XA CN201610393212A CN106401664A CN 106401664 A CN106401664 A CN 106401664A CN 201610393212 A CN201610393212 A CN 201610393212A CN 106401664 A CN106401664 A CN 106401664A
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- China
- Prior art keywords
- oil
- brake
- slider disc
- decompressor
- braking
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/006—Arrangements of brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/12—Final actuators arranged in stator parts
- F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
- F01D17/16—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/003—Arrangements for testing or measuring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
Abstract
The invention relates to a high-power oil braking expander. The high-power oil braking expander comprises an expander spindle, an expansion end and an oil braking end. The expander spindle comprises a spindle and a spindle housing. The two ends of the spindle are correspondingly and rotationally connected with the two ends of the spindle housing through bearings and are correspondingly connected with the expansion end and the oil braking end in a transmission manner. The expander spindle is provided with at least one spindle oil brake. Each spindle oil brake comprises an annular braking body and a braking body oil inlet pipeline. The spindle is rotationally connected with the annular braking bodies. An annular braking oil groove communicating with the corresponding braking body oil inlet pipeline is formed in the inner ring wall of each annular braking body. An oil supply and return opening is formed in the spindle housing. Compared with the prior art, according to the high-power oil braking expander, the spindle oil brakes and the oil braking end are utilized comprehensively for braking, the high-power oil braking expander is small in noise and size and easy and convenient to operate; and when by means of a low-temperature device process design, a pressurizing braking expander cannot be used and the high power braking effect is needed, the requirement of the expansion end on the large load operation can be well met, the braking power can reach 150 kw, and the application range is wider.
Description
Technical field
The present invention relates to turbo-expander field, the decompressor of more particularly, to a kind of non pressurized mode of braking.
Background technology
Turbo-expander is that the one kind realized close to thermal insulation isentropic expansion process is effectively mechanical, and gas working medium exists
Expansion process obtains low temperature, and externally work done, therefore comprises two effects for the application of decompressor simultaneously：
Obtain low temperature cold and recover energy (external work)；The coaxial other end of any decompressor is all
Need dog point, the work(that decompressor is exported absorbs and controls decompressor running speed simultaneously.
At present, turbo-expander dog point have turbocompressor (supercharging), generator, oil brake,
Blower fan brake etc., typically making full use of for energy, using turbocompressor as dog point can be all
Booster brake, but, there is no suitable process gas supercharging during part Cryo Equipment particularity flow scheme design
Recover energy to brake decompressor, now this energy ezpenditure type system can only be braked using oil brake or blower fan
Flowing mode.
However, blower fan braking is to rotarily drive impeller of blower rotation by coaxial expanding end, directly big from environment
Aspiration enters air, is directly discharged into air after pressure is improved again, and the valve adjusting on export pipeline changes suction
Adjusting brake load, usual braking power is in below 50kw, even if changing swollen for tolerance and pressure at expulsion
Swollen terminal type size, maximum brake power also can only achieve 100kw；Oil brake is coaxial in expanding end
Hang a braked wheel, be passed through the lubricating oil of certain pressure between rotor and stator, will be expanded by friction
The work(of end output is converted to heat, takes cooling in oil cooler to by lubricating oil, adjusts fuel feeding oil mass and oil
Pressure can change the brake load of turbo-expander with rotating speed although compared with blower fan braking, having noise
Little, small volume, the features such as easy and simple to handle, adjustable range is wide, but braking power general also in 50kw
Below；It can be seen that, either blower fan braking or oil brake are all limited by braking power, are all not used to make
Dynamic high turbine decompressor is it is impossible to meet the particularity flow scheme design of part Cryo Equipment.
Content of the invention
The technical problem to be solved is to provide one kind cannot use in Cryo Equipment technological design
In the case that booster brake mode decompressor needs high-power braking effect again, expansion can be better met
End large load operation demand and noise is little, small volume, high-power oil brake decompressor easy and simple to handle.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：
A kind of high-power oil brake decompressor, it includes decompressor main shaft and is co-axially located at described expansion
The expanding end at owner's axle two ends and oil brake end, described decompressor main shaft includes main shaft and is centered around described
The spindle casing of main shaft surrounding, the two ends of described main shaft pass through respectively to expand end bearing and braking end bearing with
The two ends axial rotation of described spindle casing connects, and passes with described expanding end and described oil brake end respectively
It is dynamically connected, described decompressor main shaft is provided with least one main shaft oil brake, described main shaft oil brake
Including in described spindle casing and the loop system kinetoplast that is coaxially disposed with described main shaft and be located at institute
State the brake body inflow pipeline outside spindle casing, described loop system kinetoplast is fixed with described spindle casing inwall
Connect, described main shaft is connected with described loop system kinetoplast axial rotation, the internal ring wall of described loop system kinetoplast
On be coaxially arranged with annular stop oil groove, described brake body inflow pipeline pass through described spindle casing with described
Loop system kinetoplast is fixedly connected, and extends to portion and described annular stop oil groove company in described annular stop body
Logical, described spindle casing is additionally provided with and the fuel feeding oil return opening being connected inside described spindle casing.
Compared with prior art, the invention has the beneficial effects as follows：
Product of the present invention sets up main shaft oil brake, using main shaft as rotor, loop system kinetoplast as stator,
And it is provided with brake body inflow pipeline and annular stop oil groove, relative motion between rotor and stator produces and rubs
Wipe, by brake body inflow pipeline and annular stop oil groove are passed through with the brake oil of certain pressure, Neng Gougeng
Good guarantee has enough brake oil flows to brake and to radiate, between brake oil is between rotor and stator
The viscous force of itself not only can be relied in gap to brake, and consumption friction can be taken away by oil circuit loop and produce
Raw heat thus reach braking purpose moreover it is possible to ensure braking oil temperature will not superelevation and damage oil product and
Part, meanwhile, the other end coaxial with expanding end is also oil brake end, when expanding end gas expansion
When promoting main shaft high-speed rotation, the oil brake wheel being connected with main shaft is as rotor, the oil outside oil brake wheel
Brake body enters the gap system of rotor and stator as stator, brake oil by oil brake end oil-in
Move and radiate, consume the energy of coaxial output, the two Associated brake can better meet high-power decompressor
The service requirement of group, so cannot be needed using booster brake mode decompressor in Cryo Equipment technological design again
In the case of wanting high-power braking effect, expanding end large load operation demand can be better met, expand
Machine braking power can reach 150kw, also has the characteristics that noise is little, small volume, easy and simple to handle, and leads to
Cross the quantity of main shaft oil brake on increase and decrease main shaft, the braking power of decompressor can also be adjusted, thus full
Actual motion load under the different situations of sufficient expanding end, more convenient to use, the scope of application is wider.
On the basis of technique scheme, the present invention can also do following improvement.
As a kind of preferred embodiment of the present invention, described decompressor main shaft is provided with and expands for measurement
Test the speed mouth and the vibration measuring mouth for measuring decompressor vibration state of machine rotating speed.
Beneficial effect using above-mentioned preferred version is：Convenient measurement decompressor rotating speed and vibration shape
Condition.
As another kind of preferred embodiment of the present invention, between described expansion end bearing and described expanding end
It is provided with the expanding end axle envelope sealing.
Beneficial effect using above-mentioned preferred version is：By axle envelope by spindle casing inner chamber and expanding end every
Open, Working medium gas significantly more efficient can be avoided to enter spindle casing inner chamber from expanding end, it is to avoid brake oil
Or the lubricating oil on bearing flows into expanding end from spindle casing inner chamber, thus preferably ensureing to expand unit fortune
The stability of row and reliability.
As another kind of preferred embodiment of the present invention, described expanding end includes decompressor spiral case, expansion
Impeller and slider disc can be prevented stuck and effective eliminate glade plane space between slider disc and nozzle vane
Adjustable nozzle, described adjustable nozzle and described expansion impeller are coaxially disposed from outside to inside with respect to described main shaft
In described decompressor spiral case, described adjustable nozzle is fixedly connected with the inwall of described decompressor spiral case, institute
State decompressor spiral case and be provided with the expander inlet passing in and out for Working medium gas and expander outlet, described oil system
Moved end include oil brake terminal shell and be coaxially disposed oil brake wheel in described oil brake terminal shell and
Oil brake body, the two ends of described spindle casing respectively with described decompressor spiral case and described oil brake terminal shell
It is fixedly connected, the two ends of described main shaft are connected with described expansion impeller and described oil brake wheel coaxial transmission respectively
Connect, described oil brake body is annular in shape, and is fixedly connected with the inwall of described oil brake terminal shell outside ring,
It is connected with described oil brake wheel axial rotation inside ring, described oil brake terminal shell is provided with can be by brake oil
Be injected between described oil brake wheel and described oil brake body the oil brake end oil-in in gap and with institute
State the oil brake end oil return opening of oil brake end casing internal connection.
Beneficial effect using above-mentioned preferred version is：Structure is compacter, manufactures simpler,
Input cost is lower, and braking effect is more preferable.
As another kind of preferred embodiment of the present invention, the internal ring wall of described oil brake body is coaxially disposed
There is braking oil groove annular in shape, described oil brake end oil-in is connected with described braking oil groove.
Beneficial effect using above-mentioned preferred version is：The convenient brake oil being passed through certain pressure, more
Good guarantee has enough brake oil flows to brake and to radiate.
As another kind of preferred embodiment of the present invention, described adjustable nozzle includes changing nozzle passage
Multiple nozzle vanes of area, positioning disk annular in shape, slider disc annular in shape and air deflector annular in shape
Cover plate, described air deflector cover plate, described slider disc and described positioning disk are coaxially disposed and are mutually matched, institute
State air deflector cover plate and described positioning disk is located at the both sides of described slider disc, all described nozzle vanes respectively
It is respectively positioned between described slider disc and described positioning disk, and be uniformly distributed along described positioning disk circumferencial direction,
Each described nozzle vane side fits tightly and rotates with described positioning disk and is connected, opposite side and described cunning
Moving plate fits tightly and is slidably connected, and described slider disc is vertically provided near the side of described air deflector cover plate
Described slider disc can be driven to do the trundle of movement in a curve, described air deflector cover plate is provided with and described transmission
Sell corresponding transmission chute, described trundle passes from described transmission chute and can be in described transmission chute
Slide；Described air deflector cover plate is near the side of described slider disc and described slider disc near described air deflector
The side of cover plate is coaxially arranged with the cover plate bulge loop that can be mutually fastened and connected and slider disc bulge loop, and described leads
Stream device cover plate is along the circumferential direction additionally provided near the side of described slider disc and multiple is pressed on described slip
The elastic force collision bead of disk side, the outer shroud edge of described air deflector cover plate is provided with to described slider disc and positioning disk
The cover sidewall extending, described cover sidewall covers described slider disc and fixation removable with described positioning disk connects
Connect.
Beneficial effect using above-mentioned preferred version is：Adjustable nozzle structure is compacter, manufactures assembling more
Plus simple, input cost is lower, and using convenient, the elastic force collision bead inside air deflector cover plate can compress
In slider disc near its side, slider disc can be pressed to nozzle vane, nozzle leaf by the elastic force of elastic force collision bead
Piece may proceed to press to positioning disk so that the both sides of nozzle vane are due to pressurized and be adjacent to slider disc and positioning
Glade plane space, thus eliminating the glade plane space between slider disc and nozzle vane, is retained in and leads by disk all the time
Between stream device cover plate and slider disc, so can be achieved with the zero clearance of nozzle flow passage component, both effectively reduced
The internal leakage of nozzle segment, lifts runner efficiency, is prevented effectively from again and sends out between slider disc and air deflector cover plate
The stuck situation of life is it is ensured that expand stability and the reliability of unit.
As another kind of preferred embodiment of the present invention, the middle part of each described nozzle vane is equipped with determines
Position hole, it is all vertically provided with rotational pin away from the one end side of described positioning disk inner ring, on described positioning disk
Along the circumferential direction it is provided with multiple alignment pins matching respectively with corresponding described location hole, in described slider disc
Along the circumferential direction it is provided with multiple sliding trays that corresponding described rotational pin can be driven respectively to do movement in a curve, each
Corresponding described alignment pin is passed through in one end of described nozzle vane and location hole is rotated with described positioning disk and is connected,
The other end is slidably connected with described slider disc by corresponding described rotational pin and sliding tray.
Beneficial effect using above-mentioned preferred version is：Trundle in slider disc can be picked out by pull bar
Go, thus realize the camber line of slider disc using the up and down motion of the pneumatic actuators such as pneumatic diaphragm control valve
Motion, the alignment pin on positioning disk can only make movement in a curve around it with limits nozzle blade, such nozzle
Rotational pin on blade just can drive nozzle vane to rotate by the sliding tray in slider disc, thus realizing
The aperture of nozzle passage, the regulation performance of significantly more efficient guarantee adjustable nozzle is it is ensured that expand the steady of unit
Qualitative and reliability.
As another kind of preferred embodiment of the present invention, described cover plate bulge loop and described slider disc bulge loop
It is provided with the centring ring that can ensure that described slider disc spin stabilization and will not deflect at snapping.
Beneficial effect using above-mentioned preferred version is：The interior outer rim of centring ring can effectively and air deflector
Cover plate and slider disc match it is ensured that circumferential position in rotary course for the slider disc constant it is ensured that sliding
Disc spins are stable, will not deflect.
As another kind of preferred embodiment of the present invention, described cover plate bulge loop and described slider disc bulge loop
It is provided with sealing ring at snapping.
Beneficial effect using above-mentioned preferred version is：The significantly more efficient internal leakage reducing nozzle segment,
Lifting runner efficiency.
As another kind of preferred embodiment of the present invention, the surface of described nozzle vane is provided with one layer of lubrication
Material layer, described slider disc is near the side of described nozzle vane and/or described positioning disk near described spray
The side of mouth blade is provided with one layer of lubricant layer.
Beneficial effect using above-mentioned preferred version is：Increase slider disc and/or positioning disk and nozzle vane
Between the lubricity of contact surface and the lubricity of nozzle vane both sides rubbing surface, reduce frictional force, improve
Andfrictional conditions when slider disc and nozzle vane rotation, are prevented effectively from nozzle vane and slider disc, nozzle leaf
There is plucking between piece and positioning disk, pull even stuck phenomenon it is ensured that the regulation performance of adjustable nozzle,
So that it is guaranteed that expanding unit stability, reliability.
Brief description
Fig. 1 is the axial section structural representation of product of the present invention；
Fig. 2 be product of the present invention in terms of dog point to side cross-sectional view during expanding end；
Fig. 3 is the axial section structural representation along B-B direction for the decompressor main shaft in Fig. 2；
Fig. 4 is that in the present invention, structural representation is partly cutd open in a kind of front of scheme of adjustable nozzle；
Fig. 5 be Fig. 4 in product along A-A direction side cross-sectional view；
In accompanying drawing, the list of parts representated by each label is as follows：
1st, decompressor main shaft, 2, expanding end, 3, oil brake end, 4, main shaft, 5, expand end bearing,
6th, brake end bearing, 7, loop system kinetoplast, 8, annular stop oil groove, 9, brake body inflow pipeline,
10th, fuel feeding oil return opening, 11, decompressor spiral case, 12, adjustable nozzle, 13, expand impeller, 14, swollen
Swollen end axle envelope, 15, expander inlet, 16, expander outlet, 17, oil brake body, 18, oil brake
Wheel, 19, oil brake terminal shell, 20, oil brake end oil-in, 21, oil brake end oil return opening, 22,
Air deflector cover plate, 23, slider disc, 24, positioning disk, 25, nozzle vane, 26, rotational pin, 27,
Alignment pin, 28, trundle, 29, transmission chute, 30, elastic force collision bead, 31, sealing ring, 32, fixed
Position circle.
Specific embodiment
Below in conjunction with accompanying drawing, the principle of the present invention and feature are described, example is served only for explaining this
Invention, is not intended to limit the scope of the present invention.
Embodiment
As shown in Figures 1 to 5, a kind of high-power oil brake decompressor, it include decompressor main shaft 1 with
And it is co-axially located at expanding end 2 and the oil brake end 3 at described decompressor main shaft 1 two ends, described decompressor
The spindle casing that main shaft 1 includes main shaft 4 and is centered around described main shaft 4 surrounding, the two of described main shaft 4
End is passed through respectively to expand end bearing 5 and is braked end bearing 6 with the two ends axial rotation of described spindle casing even
Connect, and be in transmission connection with described expanding end 2 and described oil brake end 3 respectively, described expansion end bearing 5
It is preferably provided the expanding end axle envelope 14 sealing and described expanding end 2 between；
Wherein, described expanding end 2 can include decompressor spiral case 11, expand impeller 13 and can prevent
Slider disc 23 is stuck and the effective adjustable spray eliminating glade plane space between slider disc 23 and nozzle vane 25
Mouth 12, described adjustable nozzle 12 and described expansion impeller 13 are coaxial from outside to inside with respect to described main shaft 4
It is arranged in described decompressor spiral case 11, described adjustable nozzle 12 is interior with described decompressor spiral case 11
Wall is fixedly connected, and described decompressor spiral case 11 is provided with expander inlet 15 He for Working medium gas turnover
Expander outlet 16, described oil brake end 3 can include oil brake terminal shell 19 and be coaxially disposed in
Oil brake wheel 18 in described oil brake terminal shell 19 and oil brake body 17, the two ends of described spindle casing
It is fixedly connected with described decompressor spiral case 11 and described oil brake terminal shell 19 respectively, described main shaft 4
Two ends are connected with described expansion impeller 13 and described oil brake wheel 18 coaxial transmission respectively, described oil brake
Body 17 is annular in shape, and is fixedly connected with the inwall of described oil brake terminal shell 19 outside ring, inside ring with
Described oil brake wheel 18 axial rotation connects, and described oil brake terminal shell 19 is provided with and can note brake oil
Enter oil brake end oil-in 20 to gap between described oil brake wheel 18 and described oil brake body 17 with
And the oil brake end oil return opening 21 that connect internal with described oil brake terminal shell 19, described oil brake body 17
Internal ring wall on be preferably coaxially disposed braking oil groove annular in shape, described oil brake end oil-in 20 and institute
State braking oil groove to be connected；
Described decompressor main shaft 1 is provided with least one main shaft oil brake, described main shaft oil brake bag
The loop system kinetoplast 7 that includes in described spindle casing and be coaxially disposed with described main shaft 4 and be located at institute
State the brake body inflow pipeline 9 outside spindle casing, described loop system kinetoplast 7 and described spindle casing inwall
It is fixedly connected, described main shaft 4 is connected with described loop system kinetoplast 7 axial rotation, described loop system kinetoplast
Annular stop oil groove 8 is coaxially arranged with 7 internal ring wall, described brake body inflow pipeline 9 passes through described
Spindle casing is fixedly connected with described loop system kinetoplast 7, and extend to described loop system kinetoplast 7 internal with
Described annular stop oil groove 8 connects, and described spindle casing is additionally provided with and is connected with inside described spindle casing
Logical fuel feeding oil return opening 10；May be provided on described decompressor main shaft 1 measuring decompressor rotating speed
Test the speed mouth and the vibration measuring mouth for measuring decompressor vibration state.
During product startup optimization of the present invention, Working medium gas enter into decompressor spiral case from expander inlet 15
In 11, then rotated by after adjustable nozzle 12, promoting expansion impeller 13, post-expansion gas pressure reduces,
Temperature reduces, and is entered into the next equipment of process unit by expander outlet 16；
And before starting, the auxiliary equipment fueller of decompressor has started to expansion end bearing 5 and dog point
Bearing 6 carries out fuel feeding, and by brake body inflow pipeline 9 to the annular stop oil on loop system kinetoplast 7
Groove 8 carries out fuel feeding, expands end bearing 5 and braking end bearing 6 forms oil film and holds up main shaft 4 after startup,
Ensure main shaft 4 smooth running, the oil being passed through annular stop oil groove 8 can be assigned to loop system kinetoplast 7 and master
In the gap of axle 4, under relative motion, the rotation that frictional heat to consume main shaft 4 is produced by the viscosity of brake oil
Rotate energy, the deep fat that temperature raises returns fuel feeding dress through fuel feeding oil return opening 10 together with bearing oil
Put, cooled down by oil cooler on fueller；
Meanwhile, also work in the other end oil brake end 3 of main shaft 4 simultaneously, and oil brake wheel 18 exists
Under high-speed rotation, drive by oil brake end oil-in 20 enter oil brake body 17 and oil brake wheel 18 it
Between gap oil produce relative motion, oil viscosity produce friction heat loss main shaft 4 rotational kinetic energy, temperature
The oil raising returns fueller through oil brake end oil return opening 21 and recycles；
Product of the present invention both can be big by increasing and decreasing the quantity of main shaft oil brake or volume on main shaft 4
Little, adjust the braking power of decompressor, thus meeting the actual motion load under expanding end 2 different situations,
Using convenient, the scope of application is wider, wherein, when the quantity of main shaft oil brake is three, comprehensive
Close best results；When main shaft oil brake is multiple, rotating speed can also be coordinated to turn down oil-supply valve and to reduce
Oil brake ability, or close the oil-supply valve of wherein part main shaft oil brake, thus reducing brake load,
Meet the actual motion load under expanding end 2 different situations, adjustable range is wide, and regulating measure is enriched, had
Elasticity.
In the present invention, described adjustable nozzle 12 can include the multiple nozzles that can change nozzle passage area
Blade 25, positioning disk 24 annular in shape, slider disc 23 annular in shape and air deflector cover plate 22 annular in shape,
Described air deflector cover plate 22, described slider disc 23 and described positioning disk 24 are coaxially disposed and are mutually matched,
Described air deflector cover plate 22 and described positioning disk 24 are located at the both sides of described slider disc 23 respectively, all
Described nozzle vane 25 is respectively positioned between described slider disc 23 and described positioning disk 24, and along described fixed
Position disk 24 circumferencial direction is uniformly distributed, and each described nozzle vane 25 side is tight with described positioning disk 24
Closely connected merging rotates and connects, and opposite side fits tightly and is slidably connected with described slider disc 23, for example：
The middle part of each described nozzle vane 25 is equipped with location hole, and it is away from the one of described positioning disk 24 inner ring
End side surface is all vertically provided with rotational pin 26, described positioning disk 24 is along the circumferential direction provided with multiple respectively with
The alignment pin 27 that corresponding described location hole matches, described slider disc 23 is along the circumferential direction provided with multiple
Corresponding described rotational pin 26 can be driven respectively to do the sliding tray of movement in a curve, each described nozzle vane 25
One end pass through corresponding described alignment pin 27 and location hole and be connected with the rotation of described positioning disk 24, the other end
It is slidably connected with described slider disc 23 by corresponding described rotational pin 26 and sliding tray；
The surface of described nozzle vane 25 is preferably provided one layer of lubricating layer, and such as spray sintering forms
Polytetrafluoroethylene floor, described slider disc 23 is near the side of described nozzle vane 25 and/or described fixed
Position disk 24 is preferably provided one layer of lubricant layer, such as dry film lubrication near the side of described nozzle vane 25
Oxidant layer；
Described slider disc 23 is vertically provided near the side of described air deflector cover plate 22 and can drive described slip
Disk 23 does the trundle 28 of movement in a curve, and described air deflector cover plate 22 is provided with and described trundle 28
Corresponding transmission chute 29, described trundle 28 passes from described transmission chute 29 and can be in described transmission
Slide in chute 29；
Described air deflector cover plate 22 is near the side of described slider disc 23 and described slider disc 23 near institute
The side stating air deflector cover plate 22 is coaxially arranged with the cover plate bulge loop that can be mutually fastened and connected and slider disc is convex
Ring, and described air deflector cover plate 22 be along the circumferential direction additionally provided near the side of described slider disc 23 multiple
The elastic force collision bead 30 of described slider disc 23 side can be pressed on, for example described air deflector cover plate 22 is near institute
The side stating slider disc 23 is peripherally disposed multiple corresponding with multiple described elastic force collision beads 30 respectively
Mounting groove, described elastic force collision bead 30 is located in corresponding described mounting groove respectively, and described elastic force touches, and 30 is permissible
Including spheroid, the one end open other end closing hollow cylinder and be located at described hollow cylinder within bullet
Spring, by the blind end elastic connection of described spring and described hollow cylinder, described spheroid is remote for described spheroid
Stretch out the opening of described hollow cylinder from one end of described spring, described cover plate bulge loop is convex with described slider disc
It is preferably provided sealing ring 31 at the snapping of ring and can ensure that described slider disc 23 spin stabilization and will not occur
The centring ring 32 of deflection, the outer shroud edge of described air deflector cover plate 22 is provided with to described slider disc 23 and determines
The cover sidewall that position disk 24 extends, described cover sidewall cover described slider disc 23 and with described positioning disk
24 removable are fixedly connected.
This adjustable nozzle 12 compact conformation, manufactures and assembles simple, low cost, easy to use, air deflector
The elastic force collision bead 30 of cover plate 22 inner side can be pressed on the side near it for the slider disc 23, elastic force collision bead 30
Elastic force slider disc 23 can be pressed to nozzle vane 25, nozzle vane 25 may proceed to press to positioning disk 24,
Make the both sides of nozzle vane 25 due to pressurized and be adjacent to slider disc 23 and positioning disk 24, thus eliminating cunning
Glade plane space is retained in air deflector cover plate by glade plane space between Moving plate 23 and nozzle vane 25 all the time
Between 22 and slider disc 23, so can be achieved with the zero clearance of nozzle flow passage component, both effectively reduce spray
The internal leakage that mouth divides, lifts runner efficiency, be prevented effectively from again slider disc 23 and air deflector cover plate 22 it
Between there is stuck situation；
Meanwhile, the trundle 28 in slider disc 23 can be picked out by pull bar, thus utilizing air bladder
The up and down motion of the pneumatic actuators such as regulating valve is realized slider disc 23 and is done movement in a curve, on positioning disk 24
Alignment pin 27 movement in a curve can only be made around it with limits nozzle blade 25, such nozzle vane 25
On rotational pin 26 just nozzle vane 25 can be driven to rotate by the sliding tray in slider disc 23, from
And realize the aperture of nozzle passage, the regulation performance of adjustable nozzle is effectively ensured it is ensured that expanding the steady of unit
Qualitative and reliability.
It is obvious to a person skilled in the art that the invention is not restricted to the thin of above-mentioned one exemplary embodiment
Section, and without departing from the spirit or essential characteristics of the present invention, can be with other concrete shapes
Formula realizes the present invention.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary,
And be nonrestrictive, the scope of the present invention is limited by claims rather than described above, because
This is intended to include all changes in the implication and scope of the equivalency of claim that fall at this
Bright interior, any reference in claim should not be considered as limiting involved claim.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all in the present invention
Spirit and principle within, any modification, equivalent substitution and improvement made etc., should be included in this
Within bright protection domain.
Claims (10)
1. a kind of high-power oil brake decompressor it is characterised in that it include decompressor main shaft (1) with
And it is co-axially located at expanding end (2) and oil brake end (3) at described decompressor main shaft (1) two ends,
Described decompressor main shaft (1) includes main shaft (4) and the main shaft being centered around described main shaft (4) surrounding
Casing, the two ends of described main shaft (4) are passed through to expand end bearing (5) and braking end bearing (6) respectively
Be connected with the two ends axial rotation of described spindle casing, and respectively with described expanding end (2) and described oil
Dog point (3) is in transmission connection, and described decompressor main shaft (1) is provided with least one main shaft oil brake,
Described main shaft oil brake is included in described spindle casing and is coaxially disposed with described main shaft (4)
Loop system kinetoplast (7) and the brake body inflow pipeline (9) outside described spindle casing, described ring
Shape brake body (7) is fixedly connected with described spindle casing inwall, described main shaft (4) and described loop system
Kinetoplast (7) axial rotation connects, and the internal ring wall of described loop system kinetoplast (7) is coaxially arranged with annular
Braking oil groove (8), described brake body inflow pipeline (9) passes through described spindle casing and described loop system
Kinetoplast (7) is fixedly connected, and extends to described loop system kinetoplast (7) internal and described annular stop oil
Groove (8) connects, and described spindle casing is additionally provided with and returns with the fuel feeding being connected inside described spindle casing
Hydraulic fluid port (10).
2. high-power oil brake decompressor according to claim 1 is it is characterised in that described swollen
Swollen owner's axle (1) is provided with the mouth and be used for measuring decompressor and shake of testing the speed for measuring decompressor rotating speed
The vibration measuring mouth of dynamic situation.
3. high-power oil brake decompressor according to claim 1 is it is characterised in that described swollen
It is provided with the expanding end axle envelope (14) sealing between swollen end bearing (5) and described expanding end (2).
4. the high-power oil brake decompressor according to any one of claim 1-3, its feature exists
In described expanding end (2) includes decompressor spiral case (11), expands impeller (13) and can prevent
Slider disc (23) is stuck and effectively eliminates glade plane space between slider disc (23) and nozzle vane (25)
Adjustable nozzle (12), described adjustable nozzle (12) and described expansion impeller (13) with respect to described
Main shaft (4) is coaxially disposed from outside to inside in described decompressor spiral case (11), described adjustable nozzle (12)
It is fixedly connected with the inwall of described decompressor spiral case (11), described decompressor spiral case (11) is provided with confession
The expander inlet (15) of Working medium gas turnover and expander outlet (16), described oil brake end (3)
Including oil brake terminal shell (19) and be coaxially disposed in described oil brake terminal shell (19) oil system
Driving wheel (18) and oil brake body (17), the two ends of described spindle casing respectively with described decompressor spiral case
(11) be fixedly connected with described oil brake terminal shell (19), the two ends of described main shaft (4) respectively with
Described expansion impeller (13) and described oil brake wheel (18) coaxial transmission connect, described oil brake body (17)
Annularly, and it is fixedly connected with the inwall of described oil brake terminal shell (19) outside ring, inside ring and institute
State oil brake wheel (18) axial rotation to connect, described oil brake terminal shell (19) is provided with can will brake
The oil brake end that oil is injected into gap between described oil brake wheel (18) and described oil brake body (17) is entered
Hydraulic fluid port (20) and oil brake end oil return opening (21) that connect internal with described oil brake terminal shell (19).
5. high-power oil brake decompressor according to claim 4 is it is characterised in that described oil
Braking oil groove annular in shape, described oil brake end oil-feed are coaxially arranged with the internal ring wall of brake body (17)
Mouth (20) is connected with described braking oil groove.
6. high-power oil brake decompressor according to claim 4 is it is characterised in that described can
Nozzle (12) is adjusted to include changing multiple nozzle vanes (25) of nozzle passage area, annular in shape determining
Position disk (24), slider disc (23) annular in shape and air deflector cover plate (22) annular in shape, described lead
Stream device cover plate (22), described slider disc (23) and described positioning disk (24) are coaxially disposed and mutual
Join, described air deflector cover plate (22) and described positioning disk (24) are located at described slider disc (23) respectively
Both sides, all described nozzle vane (25) be respectively positioned on described slider disc (23) and described positioning disk (24)
Between, and be uniformly distributed along described positioning disk (24) circumferencial direction, each described nozzle vane (25)
Side fits tightly and rotates with described positioning disk (24) and is connected, opposite side and described slider disc (23)
Fit tightly and be slidably connected, described slider disc (23) is near the side of described air deflector cover plate (22)
Vertically it is provided with the trundle (28) that described slider disc (23) can be driven to do movement in a curve, described air deflector
Cover plate (22) is provided with transmission chute (29) corresponding with described trundle (28), described trundle
(28) pass from described transmission chute (29) and can slide in described transmission chute (29)；Described
Air deflector cover plate (22) is near the side of described slider disc (23) and described slider disc (23) near institute
The side stating air deflector cover plate (22) is coaxially arranged with the cover plate bulge loop that can be mutually fastened and connected and slider disc
Bulge loop, and described air deflector cover plate (22) is near the side of described slider disc (23) along the circumferential direction also
It is provided with multiple elastic force collision beads (30) being pressed on described slider disc (23) side, described air deflector lid
The outer shroud edge of plate (22) is provided with the cover plate side extending to described slider disc (23) and positioning disk (24)
Wall, described cover sidewall covers described slider disc (23) and fixation removable with described positioning disk (24) connects
Connect.
7. high-power oil brake decompressor according to claim 6 is it is characterised in that each institute
The middle part stating nozzle vane (25) is equipped with location hole, and it is away from the one of described positioning disk (24) inner ring
End side surface is all vertically provided with rotational pin (26), described positioning disk (24) is along the circumferential direction provided with multiple
The alignment pin (27) matching with corresponding described location hole respectively, on described slider disc (23) circumferentially
Direction is provided with multiple sliding trays that corresponding described rotational pin (26) can be driven respectively to do movement in a curve, each
Corresponding described alignment pin (27) and location hole and described positioning are passed through in one end of described nozzle vane (25)
Disk (24) rotates and connects, and the other end passes through corresponding described rotational pin (26) and sliding tray and described slip
Disk (23) is slidably connected.
8. high-power oil brake decompressor according to claim 6 is it is characterised in that described lid
Be provided with the snapping of plate bulge loop and described slider disc bulge loop can ensure that described slider disc (23) spin stabilization and
The centring ring (32) that will not deflect.
9. high-power oil brake decompressor according to claim 6 is it is characterised in that described lid
It is provided with sealing ring (31) at plate bulge loop and the snapping of described slider disc bulge loop.
10. the high-power oil brake decompressor according to any one of claim 6-9, its feature exists
In the surface of described nozzle vane (25) is provided with one layer of lubricating layer, and described slider disc (23) is leaned on
The side of closely described nozzle vane (25) and/or described positioning disk (24) are near described nozzle vane (25)
Side be provided with one layer of lubricant layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610393212.XA CN106401664B (en) | 2016-06-02 | 2016-06-02 | High-power oil brake expanding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610393212.XA CN106401664B (en) | 2016-06-02 | 2016-06-02 | High-power oil brake expanding machine |
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| Publication Number | Publication Date |
|---|---|
| CN106401664A true CN106401664A (en) | 2017-02-15 |
| CN106401664B CN106401664B (en) | 2018-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610393212.XA Active CN106401664B (en) | 2016-06-02 | 2016-06-02 | High-power oil brake expanding machine |
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| Country | Link |
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| CN (1) | CN106401664B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022121838A1 (en) * | 2020-12-08 | 2022-06-16 | 江苏国富氢能技术装备股份有限公司 | Expansion unit combined adjustable oil brake structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5535830A (en) * | 1978-09-06 | 1980-03-13 | Hitachi Ltd | Oil brake for expansion turbine for liquefying gas |
| CN102767401A (en) * | 2012-07-04 | 2012-11-07 | 联优机械(常熟)有限公司 | Rotating shaft bearing mechanism for outer power output device of turbine expansion machine |
| CN104136767A (en) * | 2011-10-19 | 2014-11-05 | 克里奥斯塔股份有限公司 | Cryogenic liquid expansion turbine |
| CN205669412U (en) * | 2016-06-02 | 2016-11-02 | 四川泰博流体科技有限公司 | High-power oil brake decompressor |
-
2016
- 2016-06-02 CN CN201610393212.XA patent/CN106401664B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5535830A (en) * | 1978-09-06 | 1980-03-13 | Hitachi Ltd | Oil brake for expansion turbine for liquefying gas |
| CN104136767A (en) * | 2011-10-19 | 2014-11-05 | 克里奥斯塔股份有限公司 | Cryogenic liquid expansion turbine |
| CN102767401A (en) * | 2012-07-04 | 2012-11-07 | 联优机械(常熟)有限公司 | Rotating shaft bearing mechanism for outer power output device of turbine expansion machine |
| CN205669412U (en) * | 2016-06-02 | 2016-11-02 | 四川泰博流体科技有限公司 | High-power oil brake decompressor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022121838A1 (en) * | 2020-12-08 | 2022-06-16 | 江苏国富氢能技术装备股份有限公司 | Expansion unit combined adjustable oil brake structure |
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| Publication number | Publication date |
|---|---|
| CN106401664B (en) | 2018-01-26 |
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Effective date of registration: 20230320 Address after: Room 1410-B, Block B, Floor 14, Huizhongli 103, Chaoyang District, Beijing, 100020 Patentee after: CHINA OIL BLUE OCEAN PETROLEUM TECHNOLOGY, Inc. Address before: 641400 Xinshi Industrial Park, Jianyang City, Ziyang City, Sichuan Province Patentee before: SICHUAN TIBO FLUID TECHNOLOGY CO.,LTD. |
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