CN107947447A - Inertia force energy-storage system - Google Patents
Inertia force energy-storage system Download PDFInfo
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- CN107947447A CN107947447A CN201711388745.XA CN201711388745A CN107947447A CN 107947447 A CN107947447 A CN 107947447A CN 201711388745 A CN201711388745 A CN 201711388745A CN 107947447 A CN107947447 A CN 107947447A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G3/00—Other motors, e.g. gravity or inertia motors
- F03G3/08—Other motors, e.g. gravity or inertia motors using flywheels
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/02—Additional mass for increasing inertia, e.g. flywheels
- H02K7/025—Additional mass for increasing inertia, e.g. flywheels for power storage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1823—Rotary generators structurally associated with turbines or similar engines
- H02K7/183—Rotary generators structurally associated with turbines or similar engines wherein the turbine is a wind turbine
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The present invention relates to a kind of inertia force energy-storage system, including reinforced tubular concrete tunnel, tubulose carriage-type flywheel is installed in tunnel, the lower section of tubulose carriage-type flywheel is equipped with track, tubulose carriage-type flywheel and track form unitary rotation and are arranged on support roller, support roller is installed on hydraulic cylinder by bearing and bearing holder (housing, cover), and hydraulic cylinder is fixed on tunnel bottom；The lower section of the carriage-type flywheel is equipped with power generation mechanism；The upper and lower part of carriage-type flywheel is respectively equipped with some air inlets and exhaust outlet, and each air inlet is connected with corresponding centrifuge, and the side of carriage-type flywheel is equipped with air passage, and air passage is communicated in air inlet and exhaust outlet.The present invention it is pollution-free, without discharge, non-maintaining, service life is long, the engineering construction cycle is short, without boosting, decompression and long-distance sand transport, there is no power transmission and transformation cost to avoid power consumption again, discharge and recharge conversion reaction is second level, can be as needed to two kinds of energy storage mode making choice property energy storage.
Description
Technical field
The present invention relates to a kind of electric power storage method, is particularly a kind of method that electric energy is stored by material inertia force,
Belong to physics energy storage method.
Background technology
The big producer that China is the energy is also the consumption big country of the energy, and the demand of existing energy-saving and emission-reduction, also has and pass through
The energy increases to support the demand of economic development, particularly high ferro and this super high power of ultrahigh speed carrying traffic instrument in future
The appearance of track vehicle, can all influence power quality, that just has to greatly develop energy storage industry, and research shows, to
Make the control of power fluctuation rate within percent 10, percent 10 energy-storage system is at least equipped with, if lacking power energy storage energy
Power, the access of excessive new energy and large power-consuming equipment, it will cause to seriously affect to power grid.Due to lacking energy storage, in
State abandons water, abandons wind, abandons light, abandoning core and even abandon coal daily, and abandoned electricity is plus maintenance expense, loss, depreciation daily, and loss is near daily
10000000000 RMB.Energy storage technology is broadly divided into physics energy storage（Such as draw water energy storage, compressed-air energy storage, flywheel energy storage）, chemistry
Energy storage（Such as lead-acid battery, redox flow batteries, sodium-sulphur battery, lithium ion battery）And Power Flow（As superconducting magnetic stores up
Energy, ultracapacitor energy storage etc.）Three major types.
To tackle city peakload, electric system will increase great amount of investment newly and be used for power grid and power supply standby capacity every year
Build, but utilization rate is very low.Also for reply peakload, then large capacity energy storage project is used, not only invested
It can reduce at double, and since energy storage facility takes up an area less, without discharge, it saves land, is energy saving, emission reduction effect is other measures to regulate rush-hour traffic
It can not compare.
Draw water energy storage, the electric power storage issued according to international regenerative resource administration and the market report of regenerative resource, arrives
Global energy storage installed capacity in 2017 is 176 gigawatts, wherein 169 gigawatt of energy storage that draws water, accounts for percent 96；Hot 3.3 gigawatt of energy storage
Account for percent 1.9；1.9 gigawatt of battery energy storage accounts for percent 1.1；1.6 gigawatt of mechanical energy storage accounts for percent 0.9；Although China takes out
Water accumulation of energy installation scale has ranked the first in the world, and accounts for percent the 3 of global capacity of installed generator, but installed capacity at present accounts for
China's power generation total installed capacity ratio is only percent 1.7, is not that every mountain can build power station of drawing water, addressing is harsh, building time
Long, very flexible, away from electricity consumption side, cost of investment is high, and every kilowatt of investment of water-storage is 7000 yuan or so.
Compressed-air energy storage efficiency is low, addressing is difficult, it is necessary to consume fossil energy.
Chemical energy storage, 4000 to 28000 yuan every kilowatt of chemical cell cost, 2800 to 4000 yuan of unit volume cost, though
Right future cost will decline 50 to 60 percent, but from the point of view of above-mentioned data, have to rise to leading position from percent 1.9
Very long road will be walked, and the chemical energy storage scale of construction is small, at present maximum stored energy capacitance 200mw, and short life, scrap after pollute environment.
Flywheel energy storage, in recent years, it is the hair at full speed based on following three technologies that Flywheel energy storage technique, which makes a breakthrough,
Exhibition：First, the appearance of high energy permanent magnetism and high temperature superconductor technology；Second, the appearance of high-intensity fiber composite material；Third, power electronics skill
The rapid development of art.
Flywheel energy storage has long lifespan, environment is not influenced, and with little need for maintenance, conversion is fast, suitable for power grid tune
Frequency and power quality guarantee.The shortcomings that flywheel energy storage be energy density than relatively low, be mainly used at present for battery system make
Supplement, the direction of flywheel energy storage research and development is to segment market, with the targeting product according to different Product Requirement Design specialties, research and development
Impetus is concentrated mainly on the composite material that can improve flywheel energy storage density, and reduces the shafting supporting structure of frictional resistance, greatly
Capacity energy storage can improve efficiency of energy utilization, and huge investment is saved for country, but the flywheel of vast capacity, at present technology still not into
It is ripe.Most detrimentally centrifugal force, but again and deposited as flywheel energy storage method centrifugal force and inertia force in flywheel energy storage, using same
The material of sample, increase flywheel diameter can improve stored energy capacitance, and can reduce Speed of Reaction Wheels cannot but reduce centrifugal force, can not
Reduce linear velocity, reduce linear velocity after energy storage density decline therewith, increase flywheel diameter after can also consume a large amount of high-quality steels or
Expensive composite material, cost is excessive, and since flywheel support by an axis, endurance is limited, and due to the large-scale flywheel of loading
The technical difficulty of large scale vacuum chamber, it is impossible to which that does is excessive, so large capacity flywheel can not be developed.
Power Flow technology is now still costly, is not commercialized also.
There is presently no can meet to be easy to addressing, environmentally friendly, this big 3 points requirement of stored energy capacitance energy storage scheme.
The content of the invention
Advantage and disadvantage of the present invention according to a variety of energy storage modes, there is provided a kind of inertia force energy-storage system, solves existing skill
In art energy storage mode be difficult to meet at the same time addressing, it is environmentally friendly, stored energy capacitance is big the problem of.
Technical scheme is as follows：
Inertia force energy-storage system, including reinforced tubular concrete tunnel, are provided with tubulose carriage-type flywheel, tubulose compartment in tunnel
The lower section of formula flywheel is equipped with track, and tubulose carriage-type flywheel and track form unitary rotation and be arranged on support roller, and support roller is by bearing
And bearing holder (housing, cover) is installed on hydraulic cylinder, hydraulic cylinder is fixed on tunnel bottom；The lower section of the carriage-type flywheel is equipped with generator
Structure；The upper and lower part of carriage-type flywheel is respectively equipped with some air inlets and exhaust outlet, each air inlet and corresponding centrifuge
Connection, the side of carriage-type flywheel is equipped with air passage, has check-valves on air passage, air passage is communicated in air inlet and exhaust outlet.
The power generation mechanism is that permanent magnet is arranged on the bottom of carriage-type flywheel, and the lower section of permanent magnet is equipped with stator, fixed
Son is fixedly mounted on stator installing plate, and stator installing plate is installed on tunnel bottom by staking out, and coil is wrapped in the outer of stator
Surface；The top of stator is equipped with current limiting plate.
The stator is equipped with multiple, and multiple stators form annular, and each stator is corresponding with respective current limiting plate, multiple
Current limiting plate forms annular.
The power generation mechanism is that wheel shaft is set between two support rollers, forms wheel pair, each wheel shaft is equipped with an increasing
Reduction gearing, speed change gear are connected by electric generator/motor gear with motor/generator.
The carriage-type flywheel wrapped inside has interior cable wire, and outside is wound with outer cable wire.
The outer wall of the carriage-type flywheel is equipped with dynamic sealing bar, and the lower section of dynamic sealing bar is equipped with static seal bar, quiet close
Strip of paper used for sealing is fixed on the inner wall in tunnel, and static and dynamic sealing bar and static seal bar are contactless labyrinth seal.
The bottom in the tunnel is equipped with oil trap, oil pump, oil pipe, and oil pump is connected with oil trap, and the both ends of oil pipe pass through
Oil pump is connected with shafts, speed change gear, electric generator/motor gear outside bearing, support roller respectively.
The carriage-type flywheel is formed by some section monomer pipelines by flanged joint, and carriage-type flywheel is equipped with some
A hatch door.
The tunnel further includes inner side flow type energy storing structure, and inner side flow type energy storing structure is tubulose reinforced concrete
Every certain intervals in native tunnel leave mouth then, are equipped with motor/generator in mouth then, and motor/generator is connected by axis or umbrella tooth
There is turbine, motor/generator is installed on then on the crossbeam of mouth by drop in beam suspension.
The tunnel inner wall anticorrosion with painting lubricious material, it is hydraulically full in tunnel.
Advantages of the present invention effect is as follows：
Due to building city suburbs underground in, compensation for demolition it is not related to, beneficial to addressing, it can build in any one surrounding city
If do not account for day do not take up an area, be pollution-free, without discharge, non-maintaining, service life is long, the engineering construction cycle is short, without boosting, being depressured
And long-distance sand transport, no power transmission and transformation cost avoid power consumption again, discharge and recharge conversion reaction is second level, can be as needed to two
Kind energy storage mode making choice property energy storage, is the optimal selection of energy-saving and emission-reduction in a short time.The invention belongs to vast capacity inertia force
Energy storage mode, material more than percent 70 is cheap concrete and water, although linear velocity is low, by increasing capacity, volume
It is used as compensation with unit materials cost of investment is reduced.
If the present invention is using magnetic suspension, it is only necessary to increase permanent magnet area and coil turn and corresponding system i.e.
Can, the outer shafts of carriage-type flywheel are done with 120 to 200 meters per second of speed circumferentially to be rotated, due to circumference, the low centrifugal force of linear velocity
It is small, so carriage-type flywheel is not required high-quality steel and expensive composite material to tackle centrifugal force, due to vacuumizing rear air
Resistance is small, and gravity and inertia force are again big, and carriage-type flywheel has higher efficiency and power, can rotate storage energy at a high speed for a long time
Amount, since carriage-type flywheel mass is big, weighs tens of thousands of to hundreds of thousands ton, so capacity is big, power grade is only second to energy storage of drawing water,
Higher than compressed-air energy storage, energy storage installed capacity 100 of drawing water is to 5000mw, compressed-air energy storage 5 to 300mw, although the present invention
Only 100 to 2000mw, but the quantity of design and installation, address are random, cost of investment is about to draw water percent the 80 of energy storage.
Brief description of the drawings
Fig. 1 is the structure diagram of the embodiment of the present invention 1.
Fig. 2 is the structure diagram of the embodiment of the present invention 3.
Fig. 3 is the side partial structural diagram of the embodiment of the present invention 1.
Fig. 4 is the structure diagram of another electrification structure in the embodiment of the present invention 1.
Fig. 5 is the structure diagram of the embodiment of the present invention 2.
Fig. 6 is the floating mount schematic diagram of support roller in the embodiment of the present invention 1.
Fig. 7 is the floating speed change scheme of installation of support roller in the embodiment of the present invention 1.
In figure；1A, tunnel I, 1B, tunnel II, 2, carriage-type flywheel, 3, metal shell, 4, air inlet, 5, upper vacuum chamber,
6th, centrifuge, 7, air passage, 8, dynamic sealing bar, 9, static seal bar, 10, outer wirerope, 11, exhaust outlet, 12, permanent magnet, 13, current limliting
Plate, 14, hydraulic cylinder, 15, oil pipe, 16, oil pump, 17, oil trap, 18, staking out, 19, stator, 20, coil, 21, support roller, 22, axis
Hold, 23, track, 24, interior wirerope, 25, tunnel mouth, 26, motor/generator II, 27, drop in beam, 28, turbine, 29, crossbeam, 30, increase and decrease
Fast gear, 31, electric generator/motor gear, 32, wheel shaft, 33, check-valves, 34, stator installing plate, 35, motor/generator I, 36,
Bearing shell, 37, retainer, 38, support roller I.
Embodiment
Embodiment 1
As shown in Fig. 1,3,4, inertia force energy-storage system in the present embodiment, using cut and cover method in underground armored concrete pipe of cement
Steel hoop concrete tunnel several kilometers to tens kilometers one long is built, reinforced tubular concrete tunnel 1B is built in underground, can
Prevent that tunnel, carriage-type flywheel, track from being influenced to cause to stretch by temperature, more than 4 meters of tunnel diameter, vacuumizes, about 0.1 in tunnel
A atmospheric pressure, and equipped with the annular tube shaped carriage-type flywheel 2 made of armored concrete, carriage-type flywheel outer wall is metal shell
3, convenient to build, is firm, preventing excoriation, inner wall is reinforced concrete structure, and carriage-type flywheel inner side inner wall has several height
Wirerope 24 in intensity, carriage-type flywheel outer exterior wall also have the outer wirerope 10 of several high intensity, for resist carriage-type flywheel due to
Extension caused by centrifugal force, to improve carriage-type flywheel linear velocity, so as to reduce tunnel and carriage-type periphery of flywheel as far as possible
Radius, reduces cost, improves the power density and economic value of carriage-type flywheel.Track 23 is installed on carriage-type flywheel lower part,
Can single track can double track, tubulose carriage-type flywheel and track form unitary rotation and be arranged on support roller, and support roller 21 is by bearing 22 and axis
Bearing sleeve is installed on hydraulic cylinder 14, and hydraulic cylinder is fixed on tunnel 1B bottoms；Carriage-type flywheel bottom is equipped with permanent magnet 12, permanent magnet
12 lower section is equipped with stator 19, and stator 19 is fixedly mounted on stator installing plate 34, and stator installing plate 34 is installed by staking out 18
In tunnel 1b bottoms, coil 20 is wrapped in the outer surface of stator；The top of stator 19 is equipped with current limiting plate 13, and the stator is equipped with
Multiple, multiple stators form annular, and each stator is corresponding with respective current limiting plate, and multiple current limiting plates form annular, form one
A huge annular permanent magnet motor/generator structure.Hydraulic cylinder controls the air gap between permanent magnet and stator, what support roller was fixedly mounted
This structure can mitigate the also convenient lubrication of windage.The upper and lower part of carriage-type flywheel 2 is respectively equipped with some air inlets 4 and exhaust
Mouth 11, each air inlet is connected with corresponding centrifuge 6, and the side of carriage-type flywheel 2 is equipped with air passage 7, has check-valves on air passage
33, air passage 7 is communicated in air inlet 4 and exhaust outlet.Pushed away under upper suction to mitigate carriage-type flywheel weight, mitigate support roller load and friction
Power, also extends curing time, and exhaust outlet is inclined at an angle to the back lower place, that is, produces lift and produce thrust again.
The outer wall of the carriage-type flywheel is equipped with dynamic sealing bar 8, and the lower section of dynamic sealing bar 8 is equipped with static seal bar 9, quiet
Sealing strip 9 is fixed on the inner wall in tunnel, and static and dynamic sealing bar 8 and static seal bar 9 seal for non-contact labyrinth.
The bottom in the tunnel is equipped with oil trap 17, oil pump 16, oil pipe 15, and oil pump is connected with oil trap, and the two of oil pipe
End is connected with bearing 22,21 outer shafts of support roller, speed change gear 30, electric generator/motor gear 31 respectively by oil pump.Needing to store up
Coil 20 promotes carriage-type flywheel to rotate energy storage for electric model and the generation magnetic field that powers during energy, when carriage-type flywheel rotary speed
During more than 100 kilometers per hour, start centrifuge 6, by extracting air in upper vacuum chamber 5, through air passage 7 by corresponding exhaust outlet
11 are discharged into the air gap of permanent magnet 12 and stator 19, stator limited flowing plate 13 last week, reduce gas overflowing to the greatest extent, improve pressure,
Again due to there is the barrier of dynamic sealing bar 8, static seal bar 9 so that upper vacuum chamber 5 is high vacuum, and dynamic sealing bar 8, static seal bar 9 are
It is contactless, it is higher-pressure region between permanent magnet 12 and stator, is pushed away under upper suction and mitigate percent 40 weight of compartment flywheel, reduce friction
Resistance simultaneously is easy to extend maintenance intervals, and when needing electric discharge, coil 20 is power generation mode, is powered to power grid, when carriage-type flywheel revolves
When rotary speed is less than 100 kilometers per hour, centrifuge 6 is closed, reduces energy consumption, is filled with a certain amount of vacuum oil in tunnel, passes through oil
Pump pressurization, can not also to 21 outer shafts of bearing 22 and support roller, speed change gear 29, electric generator/motor gear 30, cooling, lubrication
Using bearing, suspended using fluid, several sensors be installed, when sensor senses track 23, support roller 22 is worn, permanent magnet with
Stator air gap becomes hour, and control hydraulic cylinder is adjusted, and ensures each hydraulic cylinder uniform stressed, and carriage-type flywheel is by some sections
Monomer pipeline is formed by flanged joint, to prevent carriage-type flywheel due to the outside diffusion deformation of centrifugal force, to track 23, support roller
21st, horizontal abrasion is caused, carriage-type flywheel inner side inner wall has wirerope 24 in several high intensity, and carriage-type flywheel outer exterior wall also has
The outer wirerope 10 of several high intensity, for resisting carriage-type flywheel due to extension caused by centrifugal force, is flown with improving carriage-type
Linear velocity is taken turns, so as to reduce tunnel and carriage-type periphery of flywheel radius as far as possible, reduces cost, the power for improving carriage-type flywheel is close
Degree and economic value.There are several hatch doors on carriage-type flywheel, easy to the maintenance that comes in and goes out, there is underground maintenance car in certain side in tunnel
Between, can be to the carriage-type flywheel Measuring error of process.
Power generation mechanism in the present embodiment also can be by another form, as shown in figure 4, setting wheel between two support rollers
Axis, each wheel shaft 32 are equipped with a speed change gear 30, and speed change gear 30 passes through electric generator/motor gear 31 and electricity
Machine/generator 35 connects.
Support roller installation form in the present embodiment can also be other two form, such as Fig. 6, Fig. 7, shown, support roller 21 in Fig. 6
There is track up and down, support roller 21 is with the together synchronous rolling of the track 23 under carriage-type flywheel 2 and carriage-type flywheel, each wheel shaft
There is bearing shell 36 on 32, all bearing shells are all connected by retainer 37, so that ensure the wheelspan of each support roller, tunnel, compartment
The combination of formula flywheel, support roller, retainer, one huge plane bearing of class formula, advantage is that bearing load is big, but support roller is born
Rotating speed cannot be lifted.Adding support roller I38 in Fig. 7 on wheel shaft 32, the track 23 under carriage-type flywheel 2 is pressed on support roller 21,
Support roller I38 is pressed on the track on tunnel 1b, it is assumed that the half of a diameter of support roller 21 of support roller I38, then the linear speed of support roller 21
Degree is exactly the half of carriage-type flywheel linear velocity, on the premise of the linear velocity of such support roller 21 remains unchanged, carriage-type flywheel 2
Linear velocity can lift one times, by the installation form of Fig. 6 Fig. 7 can increase tunnel, electric generator/motor utilization rate, and increase
Add the energy storage density of energy-storage system.
Embodiment 2
The present invention can also use inner side flow type energy-storage system structure, and every certain intervals of reinforced tubular concrete tunnel 1A leave
Then mouth 25, are equipped with motor/generator 26, motor/generator 26 is connected with turbine 28, motor/hair by axis or umbrella tooth in mouth then
Motor 26 is installed on the crossbeam 29 of mouth then by the suspension of drop in beam 27, when needing energy storage, electric model is converted to, by turbine
Current rotation energy storage at a high speed is promoted, when needing electric power, power generation mode is converted to and discharges.
Such a Tunnel Design diameter should try one's best greatly, such as more than 6 to 12 meters, to improve water flow velocity and reduction and pipe friction
Power, girth are set by required capacity, install tens to hundreds of turbogenerators, when being designed as fast charging and discharging, turbine number of units
More, it is few to be designed as during trickle charge slow play turbine number of units, and trickle charge is put most economical soon, can be designed as half or all
Liftable type, in long period charge and discharge mode, when charge mode, rises half, and charging terminates when to be discharged, all to rise,
Reducing resistance namely reduces self-discharge rate, and when discharge mode all puts down, and as far as possible bleeds off electricity in the short time grid-connected, can carry
High charge-discharge efficiencies, turbine blade aerofoil profile equally use variable pitch close to wind-driven generator turbine impellers aerofoil profile to improve efficiency
When type, short periodicity discharge and recharge are standby, culvert mouth can be left in drag reduction, the corresponding top of every turbine by the way of feathering,
Easy to which turbine is sling maintenance, separate unit power is at 2 to 6 megawatts or so, and when electric power is had more than needed, turbogenerator is converted into electronic
Turbine, 8 to 15 meters of storages electric power per second is accelerated to by water, although can faster, the faster water of current and tunnel pipe friction
Power is bigger, and power consumption is also bigger, and output ratio is uneconomical, is adapted to frequent discharge and recharge to adjust power fluctuation, for improving electric energy
Quality, under specific circumstances, such as the excessive necessary peak clipping energy storage of network voltage, otherwise just needs power cuts to limit consumption, or in advance to be a certain
Large-scale highly energy-consuming device reservation energy storage, it is this disregard cost in the case of, water flow velocity can be brought up to 40 to 80 meters per second,
The electric power of 4 thousand to 6 m. gigawatt (GW)s can be provided in a few minutes；If flow type energy storing structure is stopped power supply, current a few houres are just
It can stop flowing, and discharge time only arrive dozens of minutes in a measure, relatively more suitable frequent discharge and recharge, available for large-scale of harbour
The energy storage of heavy equipment, it can also be used to the energy storage of 10,000 tons ship lift, or electric power is provided for ground-based electromagnetic big gun, high power laser, it is excellent
Point be long lifespan, the maintenance that simple, cost is low, few and can moment high power discharge, be especially suitable for individually being built in and lack land
The island on ground it is underwater, and be filled with seawater, i.e., promote current storage electric power using the various dump powers in island, and utilize wave
Promote the water flowing in pipe to store energy with ocean current, generate electricity at any time when needing electric power, can so cut down power station generator group appearance
Amount, reduces investment, but wants periodic cleaning to be attached to the marine organisms of tunnel inner wall, build river bank, riverside in, pipe can be promoted using water
Interior water flowing stores energy, and is agricultural irrigation water storage, when surrounding city is built, thermal insulation material is added outside tube wall, in power grid
75 degree are heated water to during into electricity consumption paddy electricity, to reduce loss for the kinematic viscosity of water based on urban heat supplying, can also be reduced.
The heat distributed using pipeline, on the ground kind grow and can improve crop yield, development cultivation and tourist industry, do comprehensive exploitation that
Just more there is application value.
Embodiment 3
As shown in Fig. 2, the structure of embodiment 1 and embodiment 2 can be combined, using cut and cover method in underground armored concrete water
The two-tube steel hoop concrete tunnel of several kilometers to tens kilometers of girth of Guan Jianyi, mud, is made of, two inside and outside two tunnels
Bar tunnel can adjacent also space-number rice, its concrete structure is the same as embodiment 1 and embodiment 2.
Claims (10)
1. inertia force energy-storage system, it is characterised in that including reinforced tubular concrete tunnel, tunnel（1B）Tubulose car is inside installed
Van-type flywheel（2）, the lower section of tubulose carriage-type flywheel is equipped with track（23）, tubulose carriage-type flywheel and track form unitary rotation
It is arranged on support roller, support roller（21）By bearing（22）And bearing holder (housing, cover) is installed on hydraulic cylinder（14）On, hydraulic cylinder is fixed on tunnel
（1B）Bottom；The lower section of the carriage-type flywheel is equipped with power generation mechanism；Carriage-type flywheel（2）Upper and lower part be respectively equipped with
Some air inlets（4）And exhaust outlet（11）, each air inlet and corresponding centrifuge（6）Connection, carriage-type flywheel（2）Side
Equipped with air passage（7）, have check-valves on air passage（33）, air passage（7）It is communicated in air inlet（4）And exhaust outlet.
2. inertia force energy-storage system according to claim 1, it is characterised in that the power generation mechanism is permanent magnet（12）
It is arranged on the bottom of carriage-type flywheel, permanent magnet（12）Lower section be equipped with stator（19）, stator（19）It is fixedly mounted on stator peace
Loading board（34）On, stator installing plate（34）Pass through staking out（18）Installed in tunnel（1B）Bottom, coil（20）It is wrapped in stator
Outer surface；Stator（19）Top be equipped with current limiting plate（13）.
3. inertia force energy-storage system according to claim 2, it is characterised in that the stator is equipped with multiple, multiple stators
Annular is formed, each stator is corresponding with respective current limiting plate, and multiple current limiting plates form annular.
4. inertia force energy-storage system according to claim 1, it is characterised in that the power generation mechanism is, two support rollers it
Between wheel shaft is set, form wheel pair, each wheel shaft（32）It is equipped with a speed change gear（30）, speed change gear（30）Pass through
Electric generator/motor gear（31）With motor/generator（35）Connection.
5. inertia force energy-storage system according to claim 1, it is characterised in that the carriage-type flywheel wrapped inside has
Interior cable wire（24）, outside is wound with outer cable wire（10）.
6. inertia force energy-storage system according to claim 1, it is characterised in that set on the outer wall of the carriage-type flywheel
There is dynamic sealing bar（8）, dynamic sealing bar（8）Lower section be equipped with static seal bar（9）, static seal bar（9）It is fixed on the inner wall in tunnel,
Static and dynamic sealing bar（8）With static seal bar（9）For contactless labyrinth seal.
7. inertia force energy-storage system according to claim 1, it is characterised in that the bottom in the tunnel is equipped with oil trap
（17）, oil pump（16）, oil pipe（15）, oil pump is connected with oil trap, the both ends of oil pipe by oil pump respectively with bearing（22）, support roller
（21）Outer shafts, speed change tooth（30）, electric generator/motor gear（31）Connection.
8. inertia force energy-storage system according to claim 1, it is characterised in that the carriage-type flywheel is single by some sections
Body pipeline is formed by flanged joint, and carriage-type flywheel is equipped with several hatch doors.
9. inertia force energy-storage system according to claim 1, it is characterised in that the tunnel further includes inner side flow type
Energy storing structure, inner side flow type energy storing structure are that every certain intervals in reinforced tubular concrete tunnel leave mouth then（25）, satisfy mouth
In be equipped with motor/generator（26）, motor/generator（26）Turbine is connected with by axis or umbrella tooth（28）, motor/generator
（26）Pass through drop in beam（27）Suspension is installed on the crossbeam of mouth then（29）On.
10. inertia force energy-storage system according to claim 1, it is characterised in that the tunnel inner wall anticorrosion with painting is smooth
Material, it is hydraulically full in tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110061587A (en) * | 2019-04-16 | 2019-07-26 | 江苏大学 | A kind of shaftless free wheels energy storage device of self-evacuating vacuum using composite molecular pump |
| CN110454339A (en) * | 2018-07-26 | 2019-11-15 | 皇甫欢宇 | A kind of inertia energy storage device and energy storage method with fluid pressure regulation effect |
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2017
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454339A (en) * | 2018-07-26 | 2019-11-15 | 皇甫欢宇 | A kind of inertia energy storage device and energy storage method with fluid pressure regulation effect |
| CN110061587A (en) * | 2019-04-16 | 2019-07-26 | 江苏大学 | A kind of shaftless free wheels energy storage device of self-evacuating vacuum using composite molecular pump |
| CN110061587B (en) * | 2019-04-16 | 2021-02-12 | 江苏大学 | Self-vacuumizing shaftless double-flywheel energy storage device adopting composite molecular pump |
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