CN108952821A - A kind of fixed marine turbing deflector structure - Google Patents
A kind of fixed marine turbing deflector structure Download PDFInfo
- Publication number
- CN108952821A CN108952821A CN201811121069.4A CN201811121069A CN108952821A CN 108952821 A CN108952821 A CN 108952821A CN 201811121069 A CN201811121069 A CN 201811121069A CN 108952821 A CN108952821 A CN 108952821A
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- Prior art keywords
- fair water
- locking washer
- water sleeves
- deflector
- washer block
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 239000007787 solid Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000005266 casting Methods 0.000 abstract description 3
- 238000007689 inspection Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241001672694 Citrus reticulata Species 0.000 description 1
- 241001269238 Data Species 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- 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
- F01D9/00—Stators
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
A kind of fixed marine turbing deflector structure, it is related to a kind of deflector structure.The present invention solves existing marine turbing deflector and is cast integrally with cylinder, leads to the problem of difficult casting, maintenance and inspection difficulty and security reliability difference.Fixed plate is located on one end of fair water sleeves, one in two right-angle sides of each gusset is affixed with fair water sleeves, another in two right-angle sides of each gusset is affixed with fixed plate, it is parallel and be uniformly arranged between muti-piece gusset, the quantity of soket head cap screw is consistent with the quantity of locking washer block to be arranged, fixed plate is packed on cylinder by soket head cap screw, a locking washer block is set on each soket head cap screw, locking washer block is in barrel shaped structure, the open end of locking washer block is machined with annular groove along its circumferencial direction, the interior edge of locking washer block open end is pressed on the head of screw of corresponding soket head cap screw.The present invention is used for the deflector structure fixed on marine turbing.
Description
Technical field
The present invention relates to a kind of steam turbine deflectors, and in particular to a kind of fixed marine turbing deflector structure belongs to
Ship power field.
Background technique
It is in place of power turbine peculiar to vessel and common power station steam turbine in operation existing main difference: common electricity
Revolving speed and operation are determined in steam turbine of standing work under constant duty, and marine turbing work carries out variable speed fortune under variable working condition
Row.This requires marine turbings to have better security reliability and advance.For this reason, it may be necessary to constantly to original vapour peculiar to vessel
Turbine structure is analyzed and researched, and then realizes that marine turbing has better security reliability by optimizing structure design
And advance.Wherein, the security reliability and advance for improving deflector are the design innovation work for needing to research and solve.It is external
Colleague always constantly in this aspect research and innovation, but since this aspect is applied to national defence (warship use), report by few disclosures.Institute
It is presently mainly that domestic relevant design unit is voluntarily tackled key problems solution with this aspect research.
The deflector of marine turbing, is installed in the cylinder of steam turbine, plays a part of guiding air flow direction.This
The deflector of research and development is mounted on the afterbody bucket rear in saturated vapor high-pressure turbine.In this position baffle upper plate week
The humidity for enclosing steam is larger, and commonly using operating condition humidity is more than 14%, 300 meter per second of air velocity or so.Since deflector receiving is larger
Corrosion under damp condition, and bear washing away from different angle high-speed flow under the conditions of different operating conditions, it is easy to it sends out
Raw damage.Deflector and cylinder were cast integrally exactly for the robustness for guaranteeing deflector in the past, as shown in figure 3, but same
When bring be that casting is difficult, check difficult, the not high security reliability of dimensional accuracy is insufficient.It is crucial that once damaging
It is bad, it repairs extremely difficult.In order to solve the insufficient just consideration of these designs for deflector and cylinder separate machined, as shown in figure 4,
Then deflector and cylinder are assembled together with screw, this can solve above-mentioned all problems.But due to being washed away by air-flow
Will lead to deflector and tremble causes screw loosening to finally result in toner screw.Therefore, fixing screws become optimization without loosening and lead
The key factor of flowing plate design.It solves fixed water conservancy diversion plate bolt not loosen, it is main tired just to solve deflector optimization design
It is difficult.
Summary of the invention
The present invention is to solve existing marine turbing deflector to be cast integrally with cylinder, leads to casting difficulty, checks
The problem of maintenance difficult and security reliability difference, and then a kind of fixed marine turbing deflector structure is provided.
The technical solution adopted by the present invention to solve the above technical problem is:
The fixed marine turbing deflector structure of fixation marine turbing deflector structure of the invention includes fair water sleeves
1, fixed plate 3, muti-piece gusset 2 and multiple soket head cap screws 5, the steam turbine deflector structure further include multiple locking washers
Block 4, both fair water sleeves 1 and fixed plate 3, which are fixedly mounted with, to be integrated, and fixed plate 3 is located on one end of fair water sleeves 1, and gusset 2 is right angle
Triangular plate, two right-angle sides of each gusset 2 affixed with fair water sleeves 1 in two right-angle sides of each gusset 2
In another is affixed with fixed plate 3, it is parallel between muti-piece gusset 2 and be uniformly arranged, the quantity of soket head cap screw 5 with it is anti-loosening
The quantity of washer block 4 is unanimously arranged, and fixed plate 3 is packed on cylinder by soket head cap screw 5, covers on each soket head cap screw 5
Equipped with a locking washer block 4, locking washer block 4 is in barrel shaped structure, and the open end of locking washer block 4 is along its circumference side
To annular groove is machined with, the interior edge of 4 open end of locking washer block is pressed on the head of screw of corresponding soket head cap screw 5.
Further, fair water sleeves 1 are made of upper fair water sleeves and lower fair water sleeves, upper fair water sleeves and lower fair water sleeves
Setting symmetrical above and below.
Further, the quantity of locking washer block 4 is even number, and the quantitative range of locking washer block 4 is 6~10
A, upper fair water sleeves are solid by the locking washer block 4 of identical quantity and the soket head cap screw 5 of identical quantity with lower fair water sleeves
On cylinder.
Further, the quantitative range of locking washer block 4 is 8, and upper fair water sleeves and lower fair water sleeves pass through four
A locking washer block 4 and four soket head cap screws 5 are packed on cylinder.
Further, the quantity of gusset 2 is 10 pieces, and upper fair water sleeves and lower fair water sleeves pass through five pieces of gussets 2 and reinforce.
Compared with the prior art, the invention has the following beneficial effects:
Fixation marine turbing deflector structure of the invention use with cylinder splitting structure, improve the processing of deflector
Precision, reduces flowing eddy current loss, and deflector realizes detachable and interchangeable, thereby simplifies manufacture structure, improves water conservancy diversion
The auditability of plate, it is easy to maintenance；
Fixation marine turbing deflector structure of the invention uses locking washer block, it is ensured that soket head cap screw is fixed not
It loosens, it is ensured that the optimization function of deflector structure emerges from, and improves the maintenanceability and security reliability of marine turbing
And manufacture economy, improve the advance of marine turbing.
Detailed description of the invention
Fig. 1 is the overall structure diagram of fixation marine turbing deflector structure of the invention (before holding back mouth)；
Fig. 2 is the overall structure diagram of fixation marine turbing deflector structure of the invention (after holding back mouth)；
Fig. 3 is that existing deflector and cylinder cast the structural schematic diagram being integrated；
Fig. 4 is the structural schematic diagram that existing deflector is connect with cylinder splitting.
Specific embodiment
Specific embodiment 1: as shown in Fig. 1~2, the fixation marine turbing deflector structure of present embodiment includes
Fair water sleeves 1, fixed plate 3, muti-piece gusset 2 and multiple soket head cap screws 5, the steam turbine deflector structure further include multiple anti-
Washer block 4 is loosened, both fair water sleeves 1 and fixed plate 3, which are fixedly mounted with, to be integrated, and fixed plate 3 is located on one end of fair water sleeves 1, muscle
Plate 2 is modification of right-angled triangle plate, and one in two right-angle sides of each gusset 2 is affixed with fair water sleeves 1, the two of each gusset 2
Another in a right-angle side is affixed with fixed plate 3, parallel between muti-piece gusset 2 and be uniformly arranged, the quantity of soket head cap screw 5
Consistent with the quantity of locking washer block 4 to be arranged, fixed plate 3 is packed on cylinder by soket head cap screw 5, each interior hexagonal spiral shell
A locking washer block 4 is set on nail 5, locking washer block 4 is in barrel shaped structure, the open end edge of locking washer block 4
Its circumferencial direction is machined with annular groove, and the interior edge of 4 open end of locking washer block is pressed on the spiral shell of corresponding soket head cap screw 5
On ailhead.
After the air-flow passive blade outflow of steam turbine, in order to reduce the aerodynamic loss of exhaust flowing, cast out on cylinder
The structure of water conservancy diversion, spatial flow that air-flow is limited along flow-guiding structure, it is smooth to allow for steam discharge flowing, so as to avoid steam discharge
There is aerodynamic loss caused by being vortexed in flowing.
The 3D model in flow-guiding structure and neighbouring space is established, its model is led using business software according to flow-guiding structure
It becomes a mandarin in the software of solid coupling, carries out numerical simulation analysis, by analyzing the stress and surrounding gas recognized at flow-guiding structure
Flow the rule in flow field.
According to practical flow-guiding structure, foil gauge is pasted at the back side at the water conservancy diversion of steam turbine, is measured from the reserved plug screw of cylinder
Data line is drawn at hole, then stress state is obtained to strain analysis reduction by software, passes through these measured datas, contrast number
The data of simulation come the unreasonable place of fixed software boundary condition setting, the perfect accuracy of algorithm.
The design rule of flow-guiding structure has been grasped in analysis according to practical flow-guiding structure and to its intensity and surrounding flow field
Water conservancy diversion is had devised according to experience in design and design specification with the mechanism of air-flow in flow field and flow-guiding structure interaction
Plate manufactures respectively with cylinder, then in the novel fluidic plate structure for combining them installation.
Deflector structure of the invention is to weld together flow guide sleeve bucket with fixed plate, point two pieces symmetrical above and below.Then
Gusset is welded again and has 10 pieces altogether, to increase structural strength, is carried out destressing heat treatment after the completion of welding, is then finished
To the size of precision prescribed, while fixed through-hole is produced, the hole is across bolt when assembly.
Meanwhile design is produced fitting plane and is provided and assemble with it on the position that cylinder baffle upper plate is assembled with it
Bolt hole, it is desirable that the circular hole position designed on the threaded hole and deflector on the cylinder is consistent, design bolt and pad
Circle will be on deflector and cylinder assembly connection.
By the screening to multiple design schemes, by the analysis of pattern of trade software, having devised barrel shape, to hold back mouth locking
Washer block, which, which holds back mouthful locking washer block, it is anti-to hold back mouth using barrel shape after fixed using round end soket head cap screw
Loosen washer block holds back hole lock function, effectively prevents the loosening of screw, realizes the effective of fixed marine turbing deflector
Effect.
The barrel shape, which holds back a mouthful locking washer block, can first be processed into cylindrical shape, and 8 altogether, upper and lower hemihedrism setting each 4
It is a, the half U type groove of welding is outputed plate side is welded and fixed, and output circular hole in fixed plate simultaneously, two pieces is welded
Integrally.Postwelding destressing heat treatment, to finish in next step.
Fitting plane is produced with deflector installation place on cylinder, produces the screw with position consistent after deflector finishing
Hole.
On deflector, with the barrel shape being welded in its fixed plate mouthful locking washer block is held back to deflector together with carry out with
The finishing of cylinder fitting surface.Simultaneous processing goes out the circular hole of two bores of round end soket head cap screw needs, position and assembly vapour
The screw hole of cylinder is consistent.
After carrying out nondestructiving inspecting test qualification to the deflector portion nested structure after last finishing, hexagonal in round end is used
Screw is assembled together with cylinder.
After being fixed with round end soket head cap screw assembly deflector and cylinder, a mouthful locking washer block is held back to barrel shape and carries out holding back hole
Processing, holds back hole for the inner tube wall flange that barrel shape holds back mouthful locking washer block using tool, block is lived round end soket head cap screw, prevented
Round end soket head cap screw loose or dislocation.
After the fixation marine turbing deflector is analyzed by pattern of trade software, good mechanical properties, it is ensured that
It is realized in marine turbing operation safe and reliable.
The fixation marine turbing deflector structure is applied on newly-designed marine turbing, by operation test, answers
With in good condition, meet the indices of design optimization.The invention of the new construction of the fixed marine turbing deflector of this kind is able to
It is satisfactory to complete.
Present invention optimizes the designs of the structure of marine turbing, improve the accuracy of manufacture of deflector, reduce deflector whirlpool
Stream loss, improves the maintenanceability of deflector, improves the inspection convenience of deflector, reduce production cost.Finally mention
The high security reliability and advance of deflector portion nested structure.
Specific embodiment 2: as depicted in figs. 1 and 2, present embodiment fair water sleeves 1 are by upper fair water sleeves and lower water conservancy diversion
Sleeve is constituted, upper fair water sleeves and lower fair water sleeves setting symmetrical above and below.It is designed in this way, ensure that steam flow channel knot symmetrical above and below
Structure, so that steam reduces aerodynamic loss in runner, meanwhile, fair water sleeves structure setting symmetrical above and below also simplifies production and peace
Fill work, easy to disassemble and maintenance.Other compositions and connection relationship are same as the specific embodiment one.
Specific embodiment 3: as depicted in figs. 1 and 2, the quantity of present embodiment locking washer block 4 is even number,
The quantitative range of locking washer block 4 is 6~10, the anti-loosening pad that upper fair water sleeves pass through identical quantity with lower fair water sleeves
Circle block 4 and the soket head cap screw 5 of identical quantity are packed on cylinder.It is designed in this way, locking washer block 4 can effectively avoid leading
Flowing plate screwing loose or dislocation.Other compositions and connection relationship are the same as one or two specific embodiments.
Specific embodiment 4: as depicted in figs. 1 and 2, the quantitative range of present embodiment locking washer block 4 is 8
A, upper fair water sleeves pass through four locking washer blocks 4 with lower fair water sleeves and four soket head cap screws 5 are packed in cylinder
On.It is designed in this way, locking washer block 4 can effectively avoid deflector screwing loose or dislocation.Other compositions and connection relationship
It is the same as the specific implementation mode 3.
Specific embodiment 5: as depicted in figs. 1 and 2, the quantity of present embodiment gusset 2 is 10 pieces, upper fair water sleeves
Pass through five pieces of gussets 2 with lower fair water sleeves to reinforce.It is designed in this way, the structure of upper fair water sleeves Yu lower fair water sleeves can be increased
Intensity.Other compositions and connection relationship are the same as the specific implementation mode 1,2 or 4.
Specific embodiment 6: as depicted in figs. 1 and 2, present embodiment fair water sleeves 1, fixed plate 3 and muti-piece gusset 2
It is welded by steel plate.It is designed in this way, the weight of deflector can be reduced, reduce manufacturing cost.Other compositions and connection relationship
It is identical as specific embodiment five.
The realization process of the fixed marine turbing deflector structure of the present invention:
1, the flowing law for analyzing air-flow near existing deflector, grasping existing deflector, nearby air-flow washes away deflector
The mechanical mechanism of effect；
2, it by the way that existing deflector structure and surrounding flow field progress 3D entity are built and touched, is then counted with business software
Value simulation carries out numerical simulation calculation and studies existing deflector by the mechanical state of airflow scouring；
3, by carrying out field experiment to deflector original structure, by being led to stickup foil gauge measurement on deflector back
Flowing plate dependent variable calculates the mechanics situation of true deflector washed away；
4, the relevant options setting that calculation procedure is adjusted according to the true stress of existing deflector, adds calculating setting more
It is kind accurate；
5, the program improved with accuracy after amendment designs the new construction of deflector itself and fixed deflector；
6, deflector of the invention and to it fix new construction run on steam turbine in embody advance, effect
It is verified.
Claims (6)
1. a kind of fixed marine turbing deflector structure, the steam turbine deflector structure includes fair water sleeves (1), fixed plate
(3), muti-piece gusset (2) and multiple soket head cap screws (5), it is characterised in that: the steam turbine deflector structure further includes multiple
Both locking washer block (4), fair water sleeves (1) and fixed plate (3), which are fixedly mounted with, to be integrated, and fixed plate (3) is located at fair water sleeves (1)
One end on, gusset (2) is modification of right-angled triangle plate, and one in two right-angle sides of each gusset (2) and fair water sleeves (1) are solid
It connects, another in two right-angle sides of each gusset (2) is affixed with fixed plate (3), parallel and uniformly distributed between muti-piece gusset (2)
Setting, the quantity of soket head cap screw (5) is consistent with the quantity of locking washer block (4) to be arranged, and fixed plate (3) passes through interior hexagonal spiral shell
Nail (5) is packed on cylinder, and a locking washer block (4), locking washer block are set on each soket head cap screw (5)
It (4) is in barrel shaped structure, the open end of locking washer block (4) is machined with annular groove, locking washer block along its circumferencial direction
(4) the interior edge of open end is pressed on the head of screw of corresponding soket head cap screw (5).
2. fixed marine turbing deflector structure according to claim 1, it is characterised in that: fair water sleeves (1) are by upper
Fair water sleeves and lower fair water sleeves are constituted, upper fair water sleeves and lower fair water sleeves setting symmetrical above and below.
3. fixed marine turbing deflector structure according to claim 1 or 2, it is characterised in that: locking washer block
(4) quantity is even number, and the quantitative range of locking washer block (4) is 6~10, and upper fair water sleeves and lower fair water sleeves are logical
The soket head cap screw (5) of the locking washer block (4) and identical quantity of crossing identical quantity is packed on cylinder.
4. fixed marine turbing deflector structure according to claim 3, it is characterised in that: locking washer block (4)
Quantitative range be 8, upper fair water sleeves and lower fair water sleeves pass through four locking washer blocks (4) and four interior hexagonal spiral shells
Nail (5) is packed on cylinder.
5. fixed marine turbing deflector structure according to claim 1,2 or 4, it is characterised in that: the number of gusset (2)
Amount is 10 pieces, and upper fair water sleeves and lower fair water sleeves pass through five pieces of gussets (2) and reinforce.
6. fixed marine turbing deflector structure according to claim 5, it is characterised in that: fair water sleeves (1) are fixed
Plate (3) and muti-piece gusset (2) are welded by steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811121069.4A CN108952821B (en) | 2018-09-25 | 2018-09-25 | Fixed marine steam turbine guide plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811121069.4A CN108952821B (en) | 2018-09-25 | 2018-09-25 | Fixed marine steam turbine guide plate structure |
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| Publication Number | Publication Date |
|---|---|
| CN108952821A true CN108952821A (en) | 2018-12-07 |
| CN108952821B CN108952821B (en) | 2023-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811121069.4A Active CN108952821B (en) | 2018-09-25 | 2018-09-25 | Fixed marine steam turbine guide plate structure |
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