CN114562541B - Shock-absorbing device for pumped storage power station unit - Google Patents
Shock-absorbing device for pumped storage power station unit Download PDFInfo
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- CN114562541B CN114562541B CN202210402654.1A CN202210402654A CN114562541B CN 114562541 B CN114562541 B CN 114562541B CN 202210402654 A CN202210402654 A CN 202210402654A CN 114562541 B CN114562541 B CN 114562541B
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- 238000003860 storage Methods 0.000 title claims abstract description 48
- 238000010521 absorption reaction Methods 0.000 claims abstract description 98
- 230000035939 shock Effects 0.000 claims abstract description 71
- 230000005540 biological transmission Effects 0.000 claims abstract description 64
- 230000007246 mechanism Effects 0.000 claims abstract description 54
- 238000005381 potential energy Methods 0.000 claims abstract description 42
- 238000006243 chemical reaction Methods 0.000 claims abstract description 41
- 230000003313 weakening effect Effects 0.000 claims abstract description 39
- 238000002955 isolation Methods 0.000 claims description 89
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 241000196324 Embryophyta Species 0.000 claims description 18
- 238000011144 upstream manufacturing Methods 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 13
- 238000013016 damping Methods 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 10
- 239000006096 absorbing agent Substances 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 2
- 241001330002 Bambuseae Species 0.000 claims description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 2
- 239000011425 bamboo Substances 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000010248 power generation Methods 0.000 description 6
- 230000003139 buffering effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a shock absorption device of a pumped storage power station unit, which comprises a pumped storage plant, wherein the pumped storage plant comprises a plant main body, and an upper floor slab positioned at the top of the plant main body is fixedly connected on the inner wall of the plant main body; vibration generated by the operation of the potential energy conversion mechanism can be isolated through the vibration isolator, vibration generated by the potential energy conversion mechanism can not be transmitted to the motor generator and the six-stage centrifugal pump, vibration received by the pumped storage factory building can be reduced again, radial vibration generated by the potential energy conversion mechanism can be weakened through the radial energy absorption structure, vibration received by the pumped storage factory building is enabled to be smaller, smooth transmission between the potential energy conversion mechanism and the motor generator and between the potential energy conversion mechanism and the six-stage centrifugal pump can be achieved through the vibration weakening device, the pumped storage factory building is more stable in operation, the service life of the pumped storage factory building is prolonged, and the practicability of the vibration reduction device of the pumped storage power station set is improved.
Description
Technical Field
The invention relates to the field of related equipment of pumped storage power stations, in particular to a damping device for a pumped storage power station unit.
Background
The pumped storage power station is a mode for indirectly storing electric energy, utilizes the surplus electric power in the lower half night to drive a water pump to pump water from a lower reservoir to an upper reservoir for storage, then discharges the water for power generation in the daytime and the first half night and flows into the lower reservoir, and in the whole operation process, although part of energy is lost in conversion, compared with the condition that the pumped storage power station is used for increasing coal electric power generation equipment to meet peak power consumption and is used for pressing and stopping in the low valley, the pumped storage power station is cheaper, and has better benefit, besides, the pumped storage power station can also be used for carrying dynamic functions such as frequency modulation, phase modulation and accident standby, and the pumped storage power station is a power source point and an electric power user; the system is an important tool for power grid operation management, is a prop for ensuring safe, economical and stable production of a power grid, a pumped storage power station is provided with two main operation modes of power generation and pumping, a plurality of operation modes are changed from one working condition to the other working condition between the two main operation modes, the components of the pumped storage power station mainly comprise an upper reservoir, a water delivery system, a factory building, a switching station, an outlet field and a lower reservoir, the factory building is a place for placing important electromechanical devices such as an energy storage unit and electrical equipment and the like, the center for power plant production is also the pumped storage power station, the pumped storage power station is used for completing basic functions such as pumping, power generation and the like, and plays important roles such as frequency modulation, phase modulation, ascending load climbing and emergency standby, and the like, the pumped storage unit in the factory building is generally arranged by adopting a vertical shaft, a motor generator is positioned above a three-nozzle impulse turbine, a six-stage centrifugal pump is positioned below the three-nozzle impulse turbine, and the motor generator, the three-nozzle impulse turbine and the six-stage centrifugal pump can vibrate in the operation process, wherein the three-nozzle impulse turbine is the largest due to the vibration of the three-nozzle impulse turbine and the volute vibration of the pump can cause damage to the vibration of the factory building.
At present, people usually adopt a form of installing a shock pad to shock-absorb a motor generator, a three-nozzle impulse turbine and a six-stage centrifugal pump, but the shock absorption effect is extremely poor, and strong shock generated by the three-nozzle impulse turbine can be transmitted to the motor generator and the six-stage centrifugal pump through a transmission shaft, so that the motor generator, the six-stage centrifugal pump and a floor slab where the motor generator and the six-stage centrifugal pump are located generate large-amplitude shock, the safety of a factory building is seriously endangered, and therefore, the design of a shock absorption device of a pumped storage power station unit is needed.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems that at present, people usually adopt a mode of installing a shock pad to shock-absorb a motor generator, a three-nozzle impulse turbine and a six-stage centrifugal pump, but the shock absorption effect is extremely poor, and strong shock generated by the three-nozzle impulse turbine can be transmitted to the motor generator and the six-stage centrifugal pump through a transmission shaft, so that the motor generator, the six-stage centrifugal pump and a floor where the motor generator, the six-stage centrifugal pump are located generate larger shock, and the safety of a factory building is seriously endangered, the invention aims to provide a shock absorption device of a pumped storage power station unit, which can well solve the problems in the background art.
2. Technical proposal
In order to solve the problems, the invention adopts the following technical scheme.
The utility model provides a pumped storage power station unit damping device, including the pumped storage factory building, the pumped storage factory building includes the factory building main part, fixedly connected with is located the upper floor slab at its top on the inner wall of factory building main part, fixedly connected with is located the lower floor slab of upper floor slab below on the inner wall of factory building main part, fixedly grafting has the upstream pipeline that is located its left end on the top surface of factory building main part, upper floor slab, lower floor slab is run through to the bottom of upstream pipeline, be equipped with motor generator on the top surface of upper floor slab, be equipped with potential energy conversion mechanism on the top surface of lower floor slab, motor generator and potential energy conversion mechanism's bottom all is equipped with torsion buffer gear, a torsion buffer gear fixed mounting is on the top surface of upper floor slab, another one torsion buffer gear fixed mounting is on the top surface of lower floor slab, fixedly mounted has six centrifugal pump on the bottom of factory building main part inner chamber, six centrifugal pump's bottom fixed intercommunication has the downstream pipeline, the other end of downstream pipeline extends to the outside of factory building main part, six centrifugal pump's top fixed intercommunication has the pump water pipe, the other end and the bottom intercommunication of upstream pipeline, be equipped with potential energy conversion mechanism on the top surface of upper floor slab, be equipped with the motor generator and potential energy conversion mechanism on the top of upper floor slab, be equipped with the level pump and the centrifugal pump has six-level centrifugal pump between the level and the converter and the electric energy conversion mechanism and the drain pump, the drain pump has the potential energy conversion mechanism.
Preferably, the potential energy conversion mechanism comprises a vibration hole and a three-nozzle impulse turbine, the vibration hole is formed in a lower floor slab, the bottom end of the three-nozzle impulse turbine is fixedly communicated with a three-switching hose, the bottom end of the three-switching hose is fixedly communicated with a switching elbow, the switching elbow is movably inserted into the vibration hole, a transmission shaft at the bottom of the three-nozzle impulse turbine penetrates through the three-switching hose and the switching elbow and extends to the outside of the three-nozzle impulse turbine, the other end of the switching elbow is fixedly communicated with a lower buffering corrugated pipe, the other end of the lower buffering corrugated pipe is fixedly communicated with a drain pipe, the other end of the drain pipe is fixedly communicated with a downstream pipeline, the left end of the three-nozzle impulse turbine is fixedly communicated with an upper buffering corrugated pipe, and the left end of the upper buffering corrugated pipe is fixedly communicated with the right end of the drain pipe.
Preferably, the torsion buffer gear includes the registration arm, and the quantity of registration arm is two, and a registration arm fixed connection is on the top surface of upper floor and the activity cup joints on the transmission shaft of motor generator bottom, and another registration arm fixed connection is on the top surface of lower floor and the activity cup joints in the outside of three switching hoses, switching return bend, fixedly connected with atress arm on the inner wall of registration arm, and the inside fixed grafting of atress arm has the direction ring, and the outside activity of direction ring has cup jointed energy-absorbing spring and energy-absorbing slider, and the atress arm passes through energy-absorbing spring and energy-absorbing slider transmission and is connected.
Preferably, the vertical shock absorber comprises a shock absorption column, the shock absorption column is fixedly connected to the surface of the energy absorption sliding block, a shock absorption round hole is formed in the shock absorption column, a shock absorption vertical rod is connected to the bottom surface of an inner cavity of the shock absorption round hole through a shock absorption spring in a transmission mode, the shock absorption vertical rod is in sliding connection with the inner wall of the shock absorption round hole, the other end of the shock absorption vertical rod extends to the outer part of the shock absorption round hole, the top end of the shock absorption vertical rod below the motor generator is fixedly connected to the bottom surface of the motor generator, and the top end of the shock absorption vertical rod below the three-nozzle impact water turbine is fixedly connected to the bottom surface of the three-nozzle impact water turbine.
Preferably, the vibration isolator comprises two U-shaped installation pieces, one U-shaped installation piece is fixedly connected to the bottom surface of the upper floor slab, the other U-shaped installation piece is fixedly connected to the bottom surface of the inner cavity of the plant body, a vibration isolation cylinder is fixedly inserted on the surface, close to the lower floor slab, of the U-shaped installation piece, a vibration isolation pipe positioned in the middle of the vibration isolation cylinder is fixedly communicated with the bottom surface of the vibration isolation cylinder, a central stress pipe positioned in the middle of the vibration isolation cylinder is fixedly connected to the top surface of the vibration isolation cylinder, the bottom end of a transmission shaft of the motor generator is movably inserted in the inside of the central stress pipe and movably sleeved on the top surface of the vibration isolation cylinder, the top end of the transmission shaft of the three-nozzle impulse turbine penetrates through the vibration isolation pipe and extends to the inside of the vibration isolation cylinder and is fixedly connected with a vibration isolation gear, two driven large-belly gears are respectively arranged in the inside of the vibration isolation cylinder and meshed with the vibration isolation gear, the bottom end of the transmission shaft of the three-nozzle impulse turbine penetrates through the vibration isolation pipe below the vibration isolation pipe and extends to the corresponding vibration isolation pipe and is movably sleeved on the corresponding vibration isolation cylinder, and the vibration pump is movably sleeved on the corresponding vibration isolation cylinder.
Preferably, the vibration isolation device further comprises a radial energy absorption structure, the radial energy absorption structure comprises radial energy absorption pipes, the number of the radial energy absorption pipes is two, the two radial energy absorption pipes are respectively and fixedly connected to the upper end face and the lower end face of the vibration isolation cylinder, a radial energy absorption rod is fixedly connected to the inner wall of the radial energy absorption pipe, the end part of the radial energy absorption rod at the top of the vibration isolation cylinder is fixedly connected to the outer surface of the central stress pipe, the end part of the radial energy absorption rod at the bottom of the vibration isolation cylinder is fixedly connected to the outer surface of the vibration isolation pipe, a radial energy absorption block and a radial energy absorption elastic piece are movably sleeved on the outer part of the radial energy absorption rod, the radial energy absorption block at the top of the vibration isolation cylinder is in transmission connection with the outer surface of the central stress pipe through the radial energy absorption elastic piece, and the radial energy absorption block at the bottom of the vibration isolation cylinder is in transmission connection with the outer surface of the vibration isolation pipe through the radial energy absorption elastic piece.
Preferably, the vibration weakening device further comprises a vibration weakening device, the vibration weakening device comprises a track sliding hole, a transmission bevel gear and a vibration weakening rod, the track sliding Kong Kaishe is arranged on the upper surface and the lower surface of the vibration isolation barrel, the transmission bevel gear is two in number, one transmission bevel gear is fixedly sleeved at the bottom of an upper transmission shaft of the motor generator, the other transmission bevel gear is fixedly sleeved at the top of the upper transmission shaft of the six-stage centrifugal pump, the vibration weakening rod is movably inserted in the radial energy absorption block, the vibration weakening rod can rotate relative to the radial energy absorption block and can not move up and down, the upper surface and the lower surface of the corresponding radial energy absorption block are sleeved outside the same vibration weakening rod, the vibration weakening rod is slidably inserted in the track sliding hole, a vibration weakening square hole is formed in the vibration weakening rod, the bottom surface of an inner cavity of the vibration weakening square hole is in transmission connection with the vibration weakening square rod through a vibration weakening spring, the top end of the vibration weakening square rod is fixedly connected with a movable bevel gear, and the movable bevel gear is meshed with the transmission bevel gear.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
the energy storage device has the advantages that the functions of pumped storage and water discharge power generation can be achieved through the pumped storage factory building, the potential energy conversion mechanism can generate actual micro motion in the operation process, necessary action space is provided for shock absorption, torsional vibration generated by the potential energy conversion mechanism and the motor generator can be buffered through the torsion buffer mechanism, shock received by the pumped storage factory building is reduced, the potential energy conversion mechanism and the motor generator can be buffered through the vertical shock absorber, shock received by the pumped storage factory building is further reduced, shock generated by the operation of the potential energy conversion mechanism can be isolated through the shock isolator, shock generated by the potential energy conversion mechanism can not be transmitted to the motor generator and the six-stage centrifugal pump, shock received by the pumped storage factory building is reduced again, radial shock generated by the potential energy conversion mechanism can be weakened through the radial energy absorption structure, smooth transmission between the potential energy conversion mechanism and the motor generator is facilitated, pumped storage can be performed normally, the pumped storage factory building is operated more stably, the service life of the pumped storage power station is prolonged, and the practical energy storage device is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the potential energy converting mechanism of FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the torsion damping mechanism of FIG. 1 according to the present invention;
FIG. 4 is a top view of FIG. 3 in accordance with the present invention;
FIG. 5 is a schematic view illustrating an internal structure of the vertical shock absorber of FIG. 3 according to the present invention;
FIG. 6 is a schematic view of the shock isolator of FIG. 1 in accordance with the present invention;
FIG. 7 is a schematic view illustrating an internal structure of the shock isolation tube of FIG. 6 according to the present invention;
FIG. 8 is a top view of the radial energy absorber tube of FIG. 7 in accordance with the present invention;
FIG. 9 is a schematic view of the radial energy absorber block of FIG. 8 according to the present invention;
FIG. 10 is a schematic view of the shock attenuation apparatus of FIG. 7 in accordance with this invention;
fig. 11 is a schematic view of the internal structure of fig. 10 according to the present invention.
The reference numerals in the figures illustrate:
1. pumped storage factory building; 101. a plant body; 102. an upper floor slab; 103. a lower floor slab; 104. an upstream conduit; 105. a motor generator; 106. a six-stage centrifugal pump; 107. a downstream conduit; 108. a water pumping pipe; 109. a drain pipe; 110. controlling a ball valve; 111. a clutch; 2. a potential energy conversion mechanism; 20. a vibration deflecting hole; 21. three-nozzle impulse turbine; 22. a hose is connected; 23. a transfer elbow; 24. a lower buffer bellows; 25. a drain pipe; 26. an upper buffer bellows; 3. a torsion buffer mechanism; 31. a positioning tube; 32. a force receiving arm plate; 33. a guide ring; 34. an energy absorbing spring; 35. an energy-absorbing slide block; 4. a vertical shock absorber; 41. a shock-absorbing column; 42. a damping round hole; 43. a damping spring; 44. a shock absorption vertical rod; 5. a vibration isolator; 51. a U-shaped mounting member; 52. a vibration isolation cylinder; 53. a vibration isolation tube; 54. a central stress tube; 55. vibration isolation gear; 56. driven large-belly gears; 6. a radial energy absorbing structure; 61. a radial energy absorption tube; 62. a radial energy absorbing rod; 63. radial energy absorption blocks; 64. radial energy-absorbing elastic members; 7. a vibration attenuator; 70. a track slide hole; 71. a driving bevel gear; 72. vibrating the weakening bar; 73. vibrating to weaken the square hole; 74. vibrating the weakening spring; 75. vibrating to weaken the square rod; 76. a movable bevel gear.
Detailed Description
The drawings in the embodiments of the present invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only a few embodiments of the present invention; but not all embodiments. Based on the embodiments in the present invention; all other embodiments obtained by those skilled in the art without undue burden; all falling within the scope of the present invention.
Referring to fig. 1-11, a shock absorbing device for a pumped storage power station unit comprises a pumped storage plant 1, wherein the pumped storage plant 1 comprises a plant body 101, an upper floor plate 102 positioned at the top of the pumped storage plant is fixedly connected to the inner wall of the plant body 101, a lower floor plate 103 positioned below the upper floor plate 102 is fixedly connected to the inner wall of the plant body 101, an upstream pipeline 104 positioned at the left end of the upper floor plate is fixedly inserted into the top surface of the plant body 101, the bottom end of the upstream pipeline 104 penetrates through the upper floor plate 102 and the lower floor plate 103, a motor generator 105 is arranged on the top surface of the upper floor plate 102, a potential energy conversion mechanism 2 is arranged on the top surface of the lower floor plate 103, torsion buffer mechanisms 3 are respectively arranged at the bottoms of the motor generator 105 and the potential energy conversion mechanism 2, one torsion buffer mechanism 3 is fixedly arranged on the top surface of the upper floor plate 102, the other torsion buffer mechanism 3 is fixedly arranged on the top surface of the lower floor 103, a six-stage centrifugal pump 106 is fixedly arranged on the bottom surface of the inner cavity of the factory building main body 101, the bottom of the six-stage centrifugal pump 106 is fixedly communicated with a downstream pipeline 107, the other end of the downstream pipeline 107 extends to the outside of the factory building main body 101, the top of the six-stage centrifugal pump 106 is fixedly communicated with a pump water pipe 108, the other end of the pump water pipe 108 is communicated with the bottom end of an upstream pipeline 104, the upstream pipeline 104 is fixedly communicated with a water drain pipe 109 positioned above the lower floor 103, the water drain pipe 109 is communicated with the potential energy conversion mechanism 2, the pipelines of the pump water pipe 108 and the water drain pipe 109 are respectively provided with a control ball valve 110, the transmission shafts on the six-stage centrifugal pump 106 are respectively provided with a clutch 111, a vibration isolator 5 is arranged between the six-stage centrifugal pump 106 and the potential energy conversion mechanism 2 and between the potential energy conversion mechanism 2 and the motor generator 105, a torsion buffer mechanism 3 can be arranged between the six-stage centrifugal pump 106 and the bottom surface of the inner cavity of the plant body 101 to absorb shock, and in this condition, the six-stage centrifugal pump 106 also needs to be connected with a corrugated pipe on a water inlet pipe and a water outlet pipe, the upstream pipeline 104 is communicated with an upper reservoir, and the downstream pipeline 107 is communicated with a lower reservoir.
The potential energy conversion mechanism 2 comprises a vibration damping hole 20 and a three-nozzle impulse turbine 21, wherein the vibration damping hole 20 is formed in a lower floor 103, a three-switching hose 22 is fixedly communicated with the bottom end of the three-nozzle impulse turbine 21, a switching elbow 23 is fixedly communicated with the bottom end of the three-nozzle impulse turbine 22, the switching elbow 23 is movably inserted into the vibration damping hole 20, a transmission shaft at the bottom of the three-nozzle impulse turbine 21 penetrates through the three-switching hose 22 and the switching elbow 23 and extends to the outside of the three-switching elbow 23, the other end of the switching elbow 23 is fixedly communicated with a lower buffer bellows 24, the other end of the lower buffer bellows 24 is fixedly communicated with a drain pipe 25, the other end of the drain pipe 25 is fixedly communicated with a downstream pipeline 107, the left end of the three-nozzle impulse turbine 21 is fixedly communicated with an upper buffer bellows 26, and the left end of the upper buffer bellows 26 is fixedly communicated with the right end of a drain pipe 109.
The torsion buffer mechanism 3 comprises two positioning pipes 31, one positioning pipe 31 is fixedly connected to the top surface of the upper floor 102 and movably sleeved on a transmission shaft at the bottom of the motor generator 105, the other positioning pipe 31 is fixedly connected to the top surface of the lower floor 103 and movably sleeved on the outer parts of the three-connecting hose 22 and the connecting bent pipe 23, a stress arm plate 32 is fixedly connected to the inner wall of the positioning pipe 31, a guide ring 33 is fixedly spliced in the inner part of the stress arm plate 32, an energy absorption spring 34 and an energy absorption sliding block 35 are movably sleeved outside the guide ring 33, and the stress arm plate 32 is in transmission connection with the energy absorption sliding block 35 through the energy absorption spring 34.
Still include vertical bumper shock absorber 4, vertical bumper shock absorber 4 includes shock strut 41, shock strut 41 fixed connection is on the surface of energy-absorbing slider 35, shock attenuation round hole 42 has been seted up to the inside of shock strut 41, shock attenuation round hole 42 inner chamber's bottom surface is connected with shock attenuation montant 44 through shock attenuation spring 43 transmission, shock attenuation montant 44 and shock attenuation round hole 42's inner wall sliding connection, shock attenuation montant 44's the other end extends to shock attenuation round hole 42's outside, motor generator 105 below shock attenuation montant 44's top fixed connection is on motor generator 105's bottom surface, three nozzle impulse turbine 21 below shock attenuation montant 44's top fixed connection is on three nozzle impulse turbine 21's bottom surface.
The vibration isolator 5 comprises two U-shaped installation pieces 51, one U-shaped installation piece 51 is fixedly connected to the bottom surface of an upper floor 102, the other U-shaped installation piece 51 is fixedly connected to the bottom surface of an inner cavity of a factory building main body 101, a vibration isolation cylinder 52 is fixedly inserted on the surface, close to a lower floor 103, of the U-shaped installation piece 51, a vibration isolation tube 53 positioned in the middle of the vibration isolation cylinder 52 is fixedly communicated with the bottom surface of the vibration isolation cylinder 52, a central stress tube 54 positioned in the middle of the vibration isolation cylinder is fixedly connected to the top surface of the vibration isolation cylinder 52, the bottom end of a transmission shaft on the motor generator 105 is movably inserted in the central stress tube 54 and movably sleeved on the top surface of the vibration isolation cylinder 52, the top end of a transmission shaft on the three-nozzle impulse turbine 21 penetrates through the vibration isolation tube 53 and extends to the inside of the vibration isolation cylinder 52 and is fixedly connected with a vibration isolation gear 55, two driven large-belly gears 56 are arranged in the inside the vibration isolation cylinder 52, the two driven large-belly gears 56 are respectively positioned on the left side and right side of the vibration isolation gear 55, the bottom ends of the three-nozzle impulse turbine 21 are movably inserted on the corresponding vibration isolation tube 52 and extend to the corresponding vibration isolation tube 52, and the bottom end of the three-nozzle impulse turbine 21 penetrates through the vibration isolation tube 52 and the corresponding vibration isolation tube 52 and is movably sleeved on the bottom surface of the vibration isolation tube 52.
The vibration isolation tube 52 is characterized by further comprising a radial energy absorption structure 6, the radial energy absorption structure 6 comprises radial energy absorption tubes 61, the number of the radial energy absorption tubes 61 is two, the two radial energy absorption tubes 61 are respectively and fixedly connected to the upper end face and the lower end face of the vibration isolation tube 52, a radial energy absorption rod 62 is fixedly connected to the inner wall of the radial energy absorption tube 61, the end part of the radial energy absorption rod 62 at the top of the vibration isolation tube 52 is fixedly connected to the outer surface of the central stress tube 54, the end part of the radial energy absorption rod 62 at the bottom of the vibration isolation tube 52 is fixedly connected to the outer surface of the vibration isolation tube 53, a radial energy absorption block 63 and a radial energy absorption elastic piece 64 are movably sleeved outside the radial energy absorption rod 62, the radial energy absorption block 63 at the top of the vibration isolation tube 52 is in transmission connection with the outer surface of the vibration isolation tube 53 through the radial energy absorption elastic piece 64, and the radial energy absorption block 63 at the bottom of the vibration isolation tube 52 is in transmission connection with the outer surface of the vibration isolation tube 53.
Still include vibrations attenuator 7, vibrations attenuator 7 includes track slide hole 70, transmission bevel gear 71 and vibrations attenuation pole 72, track slide hole 70 is offered on the upper and lower two sides of vibrations isolation section of thick bamboo 52, the quantity of transmission bevel gear 71 is two, the fixed bottom that cup joints the transmission shaft on motor generator 105 of transmission bevel gear 71, the fixed top that cup joints the transmission shaft on six centrifugal pump 106 of another transmission bevel gear 71, vibrations attenuation pole 72 activity is pegged graft in radial energy-absorbing block 63's inside, vibrations attenuation pole 72 can relative radial energy-absorbing block 63 rotate and can not the drunkenness from top to bottom, the outside at same vibrations attenuation pole 72 is cup jointed to two radial energy-absorbing blocks 63 that correspond from top to bottom, vibrations attenuation pole 72 slip is pegged graft in the inside of track slide hole 70, vibrations attenuation square hole 73 has been offered to vibrations attenuation square hole 73 inner chamber's bottom surface is connected with vibrations attenuation square pole 75 through vibrations attenuation spring 74 transmission, vibrations square pole 75 and vibrations square hole 73's inner wall sliding connection, vibrations square pole 75's top fixedly connect with movable bevel gear 76, movable bevel gear 76 meshes with vibrations square pole 71.
Working principle:
firstly, a control ball valve 110 on a water drain pipe 109 is opened, a clutch 111 is disconnected, then a pumped storage factory 1 enters a water discharge power generation process, then water in an upper reservoir enters a three-nozzle impulse turbine 21 through an upstream pipeline 104, the water drain pipe 109 and an upper buffer corrugated pipe 26 under the action of potential energy difference and drives a runner bucket in the three-nozzle impulse turbine 21 to rotate, then the runner bucket in the three-nozzle impulse turbine 21 rotates with a transmission shaft on the runner bucket, then the top end of the upper transmission shaft of the three-nozzle impulse turbine 21 rotates with a vibration isolation gear 55, then the vibration isolation gear 55 rotates with a vibration weakening rod 72 through the meshing action between the vibration isolation gear 55 and a driven large-belly gear 56, then the vibration weakening rod 72 rotates with a transmission shaft on a motor generator 105 through the meshing action between a vibration weakening square rod 75, a movable bevel gear 76 and a transmission fixed bevel gear 71, then the rotor inside the motor generator 105 rotates and generates electric energy, then the motor generator 105 operates to generate vibration, then the damping vertical rod 44 vibrates under the vibration energy of the motor generator 105 and acts on the damping spring 43, then the damping spring 43 can buffer the vertical vibration generated by the motor generator 105, the influence of the vibration of the motor generator 105 on the pumped storage factory building 1 is reduced, then the torsional vibration in the circumferential direction generated on the motor generator 105 is transmitted to the energy-absorbing slide block 35 through the vertical damper 4, the energy-absorbing slide block 35 rotates reciprocally under the vibration of the torsion, the energy-absorbing slide block 35 does work on the energy-absorbing spring 34 reciprocally, the torsion buffer mechanism 3 can buffer the torsional vibration in the circumferential direction generated on the motor generator 105, the influence of the motor generator 105 on the pumped storage factory building 1 is reduced, then the torsion buffer mechanism 3 and the vertical damper 4 corresponding to the potential energy conversion mechanism 2 buffer the vibration generated by the potential energy conversion mechanism 2 by adopting the same principle, so as to reduce the influence of the potential energy conversion mechanism 2 on the pumped storage factory building 1, then in the process that water flows through the three-nozzle impulse turbine 21, the three-nozzle impulse turbine 21 generates impulse vibration under the action of impulse force, the impulse vibration can make the three-nozzle impulse turbine 21 radially offset vibration and up-down vibration, further make the transmission shaft on the three-nozzle impulse turbine 21 radially offset vibration and up-down vibration, the transmission shaft on the three-nozzle impulse turbine 21 vertically vibrate to make the vibration isolation gear 55 vertically slide relative to the driven large-belly gear 56, so that the up-down vibration on the three-nozzle impulse turbine 21 is not transmitted to the motor generator 105, the purpose of isolating up-and-down vibration of the three-nozzle impulse turbine 21 is achieved, the radial offset vibration of the transmission shaft on the three-nozzle impulse turbine 21 can enable the vibration isolating gear 55 to radially offset and vibrate, in the process, the radial energy absorbing block 63 is always pressed on the surface of the vibration isolating gear 55 through the vibration weakening rod 72 under the elastic force of the radial energy absorbing elastic piece 64, then the radial vibration of the vibration isolating gear 55 can apply work to the radial energy absorbing elastic piece 64 through the driven large-belly gear 56, the vibration weakening rod 72 and the radial energy absorbing block 63, so that the radial energy absorbing elastic piece 64 can buffer the radial vibration of the vibration isolating gear 55, further buffer the radial vibration of the potential energy conversion mechanism 2, meanwhile, the radial vibration of the vibration isolating gear 55 can be transmitted through the driven large-belly gear 56, the vibration weakening rod 72 and the radial energy absorbing block 63 to radially vibrate through the vibration weakening rod 72, the vibration weakening bar 72 then alternately goes radially away from the drive shaft on the motor generator 105 and radially closer to the drive shaft on the motor generator 105, and in the course of the vibration weakening bar 72 being radially away from the drive shaft on the motor generator 105, the vibration weakening bar 72 moves radially away from the drive shaft on the motor generator 105 by the vibration weakening square bar 75 with the movable bevel gear 76 while the vibration weakening square bar 75 moves upward with the movable bevel gear 76 under the elastic force of the vibration weakening spring 74, and then the movable bevel gear 76 slides obliquely upward along the surface of the drive bevel gear 71 and maintains the meshing action with the drive bevel gear 71, so that the drive continues, and then the vibration weakening bar 72 moves radially closer to the drive shaft on the motor generator 105 under the elastic tension of the radial energy absorbing elastic member 64, and then the vibration weakening bar 72 moves radially closer to the drive shaft on the motor generator 105 by the vibration weakening square bar 75 with the movable bevel gear 76, then the surface of the drive bevel gear 71 applies pressure to the movable bevel gear 76, then the movable bevel gear 76 applies pressure to the vibration weakening square rod 75, then the vibration weakening square rod 75 applies pressure to the vibration weakening spring 74, then the vibration weakening spring 74 elastically contracts, then the movable bevel gear 76 slides obliquely downwards on the surface of the drive bevel gear 71 and keeps the meshing action between the movable bevel gear 76 and the drive bevel gear 71, so that the drive is continuously carried out, the radial vibration of the potential energy conversion mechanism 2 is isolated, the radial vibration of the potential energy conversion mechanism 2 is not transmitted to the motor generator 105, the vibration reduction effect is better, then the water of an upper reservoir passes through the three-way hose 22, the way elbow 23, the lower buffer bellows 24, the drain pipe 25 and the downstream pipeline 107 to enter the lower reservoir, the process of converting potential energy into electric energy is realized, then the control ball valve 110 on the water drain pipe 109 is closed, the control ball valve 110 on the water pumping pipe 108 is opened, the clutch 111 is connected for transmission, then the motor generator 105 is powered, then the motor generator 105 operates with the six-stage centrifugal pump 106 through the vibration isolator 5, the potential energy conversion mechanism 2 and the clutch 111, in the process, the vibration isolator 5 between the potential energy conversion mechanism 2 and the clutch 111 adopts the same principle, so that vibration generated by the potential energy conversion mechanism 2 can not be transmitted to the six-stage centrifugal pump 106, and then water in a lower reservoir enters an upper reservoir through the downstream pipeline 107, the six-stage centrifugal pump 106, the water pumping pipe 108 and the upstream pipeline 104.
The above; is only a preferred embodiment of the present invention; the scope of the invention is not limited in this respect; any person skilled in the art is within the technical scope of the present disclosure; equivalent substitutions or changes are made according to the technical proposal of the invention and the improved conception thereof; are intended to be encompassed within the scope of the present invention.
Claims (1)
1. The utility model provides a pumped storage power station unit damping device, includes pumped storage factory building (1), its characterized in that: the pumped storage plant (1) comprises a plant body (101), an upper floor (102) positioned at the top of the plant body is fixedly connected to the inner wall of the plant body (101), a lower floor (103) positioned below the upper floor (102) is fixedly connected to the inner wall of the plant body (101), an upstream pipeline (104) positioned at the left end of the upper floor is fixedly inserted into the top surface of the plant body (101), the bottom end of the upstream pipeline (104) penetrates through the upper floor (102) and the lower floor (103), a motor generator (105) is arranged on the top surface of the upper floor (102), a potential energy conversion mechanism (2) is arranged on the top surface of the lower floor (103), a torsion buffer mechanism (3) is fixedly arranged on the top surface of the upper floor (102), another torsion buffer mechanism (3) is fixedly arranged on the top surface of the lower floor (103), a six-stage centrifugal pump (106) is fixedly arranged on the bottom surface of an inner cavity of the plant body (101), the bottom of the six-stage centrifugal pump (106) is fixedly connected with a six-stage centrifugal pump (107) and the bottom of the pipeline (106) is fixedly connected with the outside of the pump (107) at the top of the plant body (101), the other end of the pumping pipe (108) is communicated with the bottom end of an upstream pipeline (104), a water drain pipe (109) positioned above a lower floor (103) is fixedly communicated with the upstream pipeline (104), the water drain pipe (109) is communicated with a potential energy conversion mechanism (2), control ball valves (110) are arranged on pipelines of the pumping pipe (108) and the water drain pipe (109), a clutch (111) is arranged on a transmission shaft on a six-stage centrifugal pump (106), and a vibration isolator (5) is arranged between the six-stage centrifugal pump (106) and the potential energy conversion mechanism (2) and between the potential energy conversion mechanism (2) and a motor generator (105);
the potential energy conversion mechanism (2) comprises a vibration deflection hole (20) and a three-nozzle impulse turbine (21), wherein the vibration deflection hole (20) is formed in a lower floor slab (103), the bottom end of the three-nozzle impulse turbine (21) is fixedly communicated with a three-switching hose (22), the bottom end of the three-switching hose (22) is fixedly communicated with a switching elbow (23), the switching elbow (23) is movably inserted into the vibration deflection hole (20), a transmission shaft at the bottom of the three-nozzle impulse turbine (21) penetrates through the three-switching hose (22) and the switching elbow (23) and extends to the outside of the three-nozzle impulse turbine, the other end of the switching elbow (23) is fixedly communicated with a lower buffer corrugated pipe (24), the other end of the lower buffer corrugated pipe (24) is fixedly communicated with a drain pipe (25), the other end of the drain pipe (25) is fixedly communicated with a downstream pipeline (107), the left end of the three-nozzle impulse turbine (21) is fixedly communicated with an upper buffer corrugated pipe (26), and the left end of the upper buffer corrugated pipe (26) is fixedly communicated with the right end of a drain pipe (109);
the torsion buffer mechanism (3) comprises two positioning pipes (31), wherein one positioning pipe (31) is fixedly connected to the top surface of an upper floor slab (102) and movably sleeved on a transmission shaft at the bottom of a motor generator (105), the other positioning pipe (31) is fixedly connected to the top surface of a lower floor slab (103) and movably sleeved on the outer parts of a three-transfer hose (22) and a transfer elbow (23), a stress arm plate (32) is fixedly connected to the inner wall of the positioning pipe (31), a guide ring (33) is fixedly spliced in the stress arm plate (32), an energy absorption spring (34) and an energy absorption slider (35) are movably sleeved on the outer part of the guide ring (33), and the stress arm plate (32) is in transmission connection with the energy absorption slider (35) through the energy absorption spring (34);
the vertical shock absorber (4) comprises a shock absorption column (41), the shock absorption column (41) is fixedly connected to the surface of the energy absorption sliding block (35), a shock absorption round hole (42) is formed in the shock absorption column (41), a shock absorption vertical rod (44) is connected to the bottom surface of an inner cavity of the shock absorption round hole (42) through a shock absorption spring (43) in a transmission mode, the shock absorption vertical rod (44) is slidably connected with the inner wall of the shock absorption round hole (42), the other end of the shock absorption vertical rod (44) extends to the outer portion of the shock absorption round hole (42), the top end of the shock absorption vertical rod (44) below the motor generator (105) is fixedly connected to the bottom surface of the motor generator (105), and the top end of the shock absorption vertical rod (44) below the three-nozzle impulse water turbine (21) is fixedly connected to the bottom surface of the three-nozzle impulse water turbine (21);
the vibration isolator (5) comprises U-shaped installation pieces (51), the number of the U-shaped installation pieces (51) is two, one U-shaped installation piece (51) is fixedly connected to the bottom surface of an upper floor (102), the other U-shaped installation piece (51) is fixedly connected to the bottom surface of an inner cavity of a factory building main body (101), a vibration isolation cylinder (52) is fixedly inserted on the surface of the U-shaped installation piece (51) close to a lower floor (103), a vibration isolation tube (53) positioned in the middle of the vibration isolation cylinder is fixedly communicated with the bottom surface of the vibration isolation cylinder (52), a central stress tube (54) positioned in the middle of the vibration isolation cylinder is fixedly connected to the top surface of the vibration isolation cylinder (52), the bottom end of a transmission shaft on a motor generator (105) is movably inserted in the inside the central stress tube (54) and is movably sleeved on the top surface of the vibration isolation cylinder (52), the top end of the transmission shaft on a three-nozzle impact water turbine (21) penetrates through the vibration isolation tube (53) and extends to the inside of the vibration isolation cylinder (52) and is fixedly connected with a vibration isolation gear (55), two driven gears (56) are fixedly connected to the inside the vibration isolation cylinder (52), two driven gears (56) are meshed with two driven gears (56) respectively, the bottom end of a transmission shaft on the three-nozzle impulse turbine (21) penetrates through a vibration isolation tube (53) below the vibration isolation tube and extends into the other vibration isolation tube (52) and is fixedly connected with a corresponding vibration isolation gear (55), the top end of the transmission shaft on the six-stage centrifugal pump (106) is movably inserted into the corresponding central stress tube (54) and is movably sleeved on the bottom surface of the corresponding vibration isolation tube (52), a radial energy absorption structure (6) is arranged on the vibration isolation tube (52), a vibration weakening device (7) is arranged on the radial energy absorption structure (6), and the vibration isolation gear (55) is in transmission connection with a motor generator (105) and the six-stage centrifugal pump (106) through a driven large-belly gear (56) and the vibration weakening device (7);
the vibration isolation device comprises a vibration isolation tube (52), and is characterized by further comprising a radial energy absorption structure (6), wherein the radial energy absorption structure (6) comprises radial energy absorption tubes (61), the number of the radial energy absorption tubes (61) is two, the two radial energy absorption tubes (61) are respectively and fixedly connected to the upper end face and the lower end face of the vibration isolation tube (52), radial energy absorption rods (62) are fixedly connected to the inner wall of the radial energy absorption tubes (61), the end parts of the radial energy absorption rods (62) at the top of the vibration isolation tube (52) are fixedly connected to the outer surface of a central stress tube (54), the end parts of the radial energy absorption rods (62) at the bottom of the vibration isolation tube (52) are fixedly connected to the outer surface of the vibration isolation tube (53), radial energy absorption blocks (63) and radial energy absorption elastic pieces (64) are movably sleeved on the outer parts of the radial energy absorption rods (62), the radial energy absorption blocks (63) at the top of the vibration isolation tube (52) are in transmission connection with the outer surface of the central stress tube (54) through the radial energy absorption elastic pieces (64), and the radial energy absorption blocks (63) at the bottom of the vibration isolation tube (52) are in transmission connection with the outer surface of the vibration isolation tube (53);
still include vibrations attenuator (7), vibrations attenuator (7) include track slide hole (70), transmission bevel gear (71) and vibrations attenuation pole (72), track slide hole (70) are offered on the upper and lower both sides of vibrations isolation section of thick bamboo (52), the quantity of transmission bevel gear (71) is two, the fixed bottom of cup jointing the transmission shaft on motor generator (105) of transmission bevel gear (71), the fixed top of cup jointing the transmission shaft on six grades of centrifugal pump (106) of another transmission bevel gear (71), vibrations attenuation pole (72) activity grafting is in the inside of radial energy-absorbing piece (63), vibrations attenuation pole (72) can rotate and can not shift from top to bottom relative radial energy-absorbing piece (63), the outside at same vibrations attenuation pole (72) is cup jointed to upper and lower two corresponding radial energy-absorbing pieces (63), vibrations attenuation pole (72) are sliding grafting in the inside of track slide hole (70), vibrations attenuation square hole (73) are offered in the inside of vibrations attenuation pole (72), the bottom surface in vibrations square hole (73) inner chamber has vibration attenuation square hole (73) inner wall (75) through transmission spring (74), vibrations attenuation square hole (75) are connected with vibration attenuation pole (75) activity attenuation pole (75), the movable bevel gear (76) is meshed with the driving fixed bevel gear (71); the movable bevel gear (76) slides obliquely upward along the surface of the drive bevel gear (71) and maintains the meshing action with the drive bevel gear (71).
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| CN202210402654.1A CN114562541B (en) | 2022-04-18 | 2022-04-18 | Shock-absorbing device for pumped storage power station unit |
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| CN202210402654.1A CN114562541B (en) | 2022-04-18 | 2022-04-18 | Shock-absorbing device for pumped storage power station unit |
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| CN114562541B true CN114562541B (en) | 2024-01-16 |
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| DE102012110662A1 (en) * | 2012-11-07 | 2014-05-08 | Alexander Eyhorn | Pumped storage hydroelectric power plant and power generation and storage system with such a power plant |
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| CN111927920A (en) * | 2020-07-30 | 2020-11-13 | 长沙协创智赢技术服务有限公司 | Can prevent wind and have self preservation and protect signal base station of device |
| WO2021248800A1 (en) * | 2020-06-12 | 2021-12-16 | 苏州迎乐机电自动化科技有限公司 | Direct drive electric motor with adjustable starting torque |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160369867A1 (en) * | 2013-09-27 | 2016-12-22 | Firestone Industrial Products Company, Llc | Vibration isolator and systems including same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012110662A1 (en) * | 2012-11-07 | 2014-05-08 | Alexander Eyhorn | Pumped storage hydroelectric power plant and power generation and storage system with such a power plant |
| DE102015214451A1 (en) * | 2015-07-30 | 2017-02-02 | Schaeffler Technologies AG & Co. KG | Damper device and torque transmission device with such damper device |
| CN207420774U (en) * | 2017-11-20 | 2018-05-29 | 国家电网公司 | A kind of new-type hydroenergy storage station water supply installation |
| CN108678887A (en) * | 2018-07-23 | 2018-10-19 | 中国电建集团华东勘测设计研究院有限公司 | With hair with pump group arrangement |
| CN210890633U (en) * | 2019-12-02 | 2020-06-30 | 国家电网有限公司 | Damping device for pumped storage power station unit |
| WO2021248800A1 (en) * | 2020-06-12 | 2021-12-16 | 苏州迎乐机电自动化科技有限公司 | Direct drive electric motor with adjustable starting torque |
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| CN114562541A (en) | 2022-05-31 |
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