CN103867408A - Gravity energy storing system relying on massif - Google Patents
Gravity energy storing system relying on massif Download PDFInfo
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- CN103867408A CN103867408A CN201410110886.5A CN201410110886A CN103867408A CN 103867408 A CN103867408 A CN 103867408A CN 201410110886 A CN201410110886 A CN 201410110886A CN 103867408 A CN103867408 A CN 103867408A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/22—Control systems or devices for electric drives
- B66C13/23—Circuits for controlling the lowering of the load
- B66C13/26—Circuits for controlling the lowering of the load by ac motors
- B66C13/28—Circuits for controlling the lowering of the load by ac motors utilising regenerative braking for controlling descent of heavy loads and having means for preventing rotation of motor in the hoisting direction when load is released
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Abstract
The invention discloses a gravity energy storing system relying on a massif. The gravity energy storing system comprises a high-altitude stacking platform, a low-altitude stacking platform, a plurality of standard weights, electric power increasing and generating devices and a control system. The position between the high-altitude stacking platform and the low-altitude stacking platform is paved with at least two inclined tracks, each inclined track is provided with at least one section of continuous track and each section of continuous track is provided with one set of electric power increasing and generating device. Each set of electric power increasing and generating device comprises a trailer, a cable, a cable winch and an electric generating all-in-one machine, wherein the trailer is arranged on the corresponding continuous track and connected with one end of the cable, the cable winch is installed on the edge of the platform at the end of the corresponding continuous track, and the cable winch is connected with the electric generating all-in-one machine. The control system controls the working conditions of transferring, transporting and stacking equipment and the electric power generating all-in-one machine. The gravity energy storing system is high in efficiency, low in cost, small in occupied space and high in safety coefficient.
Description
Technical field
The present invention relates to energy storage technical field, be a kind of electric energy is changed into gravitational potential energy stores and by deposited gravitational potential energy change into electric energy high-efficiency energy-storage/releasing can system.
Background technique
In recent years, the industrial electric weight of China rapidly increases, and electricity consumption Wave crest and wave trough difference constantly increases.On the other hand, renewable energy sources (wind energy, solar energy, marine tidal-current energy etc.) is although green clean, and it is regular poor conventionally to have, and the shortcoming such as fluctuate large, is difficult to be consistent with the real-time tendency of need for electricity.Although China's renewable energy sources electric motor power constantly expands, the problem of power supply shortage and peak load regulation network difficulty highlights on the contrary day by day.
Extensive electric power energy storage technology is the important means that solves contradiction between electrical production production capacity and the peak-valley difference of electricity needs fluctuation.In addition, the grid-connected impact that electric power energy storage technology can also effectively level and smooth renewable energy sources, and can improve the reliability of power system power supply.
Current existing electric power energy storage technology comprises the energy storage of drawing water, compressed-air energy storage, batteries to store energy, flywheel energy storage, brine electrolysis energy storage, superconduction magnetic energy and super capacitor etc.The energy storage technology that wherein draws water is the most typical, and the energy storage mode of drawing water stored energy capacitance is large, and speed of response is very fast, thereby application is more extensive.Need special geographical conditions but build the energy-accumulating power station that draws water, build two reservoirs and dam, the construction period is long, and initial investment is huge, and can only build in the place that has water source, energy circulation efficiency general (approximately 70%).
For example patent documentation CN201599160U of prior art has proposed one and has realized the scheme of saving gravitational potential energy by promoting standardization pouring weight.This scheme needs large-scale support column arrangement, and adopts pulley and drag-line to realize weight lifting.This scheme is taken up an area relatively few, and efficiency can reach 90% in theory, and can be used for water-deficient area.But this scheme is arranged on standardization pouring weight on support device, material and the Structural Design Requirement of the parts such as column, drag-line are too high, and safety coefficient is low, have larger operation risk.
Advanced electric locomotive of the prior art (for example harmonious 3D type electric locomotive) can utilize descending to carry out regenerative electric power, but requiring inclination rail is mild straight line or curve.This is because Wheel Rail Contact factor of adhesion is lower, and the driving force needing while travelling on abrupt slope cannot be provided.According to existing electric locomotive technology, person skilled in the art may imagine: the geographical environment of choosing the gradient less (being for example less than 5 °), slope distance (for example 5 kilometers), the special electric power locomotive that operation is connected with electrical network, the round carrying of carrying out a large amount of weights realizes accumulate and releases energy.For example, set up in inclination rail overhead and electrically contact net or lay third rail on inclination rail side, and pantograph and traction electricity generating dual purpose motor are installed in electric locomotive.Person skilled in the art also may further imagine and: realize cycle operation by laying two parallel oblique rails, improve energy density by increasing number of locomotives and railway carriage quantity.But it is large that this scheme takies useful land area, geographical conditions constraint is more, and engineering work load is large, and total efficiency not high (one way approximately 80%, round trip approximately 60%), and maintenance cost is high, and therefore use value is limited.More those skilled in the art also may further imagine and: do not brake at lower trip slide leading portion, and only at downslide inclination rail latter end straightway, arrester wires is set, brake kinetic energy is converted to electric energy by arrester wires, total efficiency can obtain and be increased to approximately 70%, but system complex degree is high.
Summary of the invention
The present invention provides a kind of gravity force energy storage system of relying on massif for solving the technical problem existing in known technology, and this system effectiveness is higher, cost is lower, floor space is less, safety coefficient is higher.
The technological scheme that the present invention takes for the technical problem existing in solution known technology is: a kind of gravity force energy storage system of relying on massif, comprises high height above sea level stacking platform, low height above sea level stacking platform, at least two inclination rails, some standardization pouring weights, electric power lifting and electricity generating device and control system; Described standardization pouring weight is piled up on described high height above sea level stacking platform and described low height above sea level stacking platform, on described high height above sea level stacking platform and described low height above sea level stacking platform, be respectively equipped with reprinting, transportation and Palletizer, on the slope between described high height above sea level stacking platform and described low height above sea level stacking platform, be equipped with at least two described inclination rails, every described inclination rail is provided with at least one section of continuous rail, and corresponding every section of described continuous rail is provided with a set of described electric power and promotes and electricity generating device;
The described electric power of every cover promotes and electricity generating device comprises a trailer, a hawser, a hawser capstan winch and an electric-driving generation integrating machine, described trailer is arranged on corresponding described continuous rail, and be connected with one end of described hawser, described hawser is wound on described hawser capstan winch, described hawser capstan winch is arranged on the platform edges of this continuous rail top or bottom, adjacent with the end of this continuous rail, described hawser capstan winch is connected by mechanical transmission mechanism with described electric-driving generation integrating machine;
The working condition of reprinting described in described control system control, transportation and Palletizer and described electric-driving generation integrating machine.
Described trailer is provided with descending accelerating unit.
Transfer platform in the middle of being provided with between described high height above sea level stacking platform and described low height above sea level stacking platform, every described inclination rail is made up of two sections of described continuous rails, rehandle facilities in the middle of described middle transfer platform is provided with.
Low height above sea level end at described continuous rail is provided with anti-collision equipment.
On described trailer, be provided with rail friction brake.
Described reprinting, transportation and Palletizer comprise at least one rehandle facilities, at least one platform rail, at least one automatic vehicle, at least one stacker crane, described rehandle facilities is arranged on the end of described continuous rail, one end of described platform rail is positioned at the below of described rehandle facilities, and the other end is positioned at the side of platform away from rehandle facilities.
On described automatic vehicle, be provided with rubber tyre and with the supporting steel wheel of described platform rail.
The top of described standardization pouring weight is provided with suspension hook or suspension ring or corner fittings, the consistent size of all described standardization pouring weights, and profile is cuboid, Polygonal column shape or cylindrical.
Advantage and good effect that the present invention has are:
One) operations such as lifting, loading and piling/de-stacking machinery technology maturation, equipment cost used is low, working year limit for length.System realizes hawser by loading and piling action and reuses at times, therefore need to fixing hawser be installed on each standardization pouring weight, significantly reduces high strength hawser cost.
Two) easy to maintenance, safe and reliable.When lift work, utilize massif slope to reduce drag force, and adopt the cable wire or the Sythetic fiber rope that improve safety coefficient design, unless therefore met with unpredictable disaster, there will not be the hawser event that ruptures suddenly.Cause the landing of standardization pouring weight even if hawser surprisingly ruptures, also can realize protection by braking brake and mountain bottom buffering device, and can return to work fast.And load and poor only several meters of piling process Plays pouring weight and ground level, but not in CN201599160U up to a hundred meters, even if hawser surprisingly ruptures and causes standardization pouring weight to fall, can not cause the destructions such as earthquake yet.Owing to only having a small amount of weight to be kept in motion, there is no the breakage of pumped storage dam, the breakage of flywheel energy storage device housings and so on potential safety hazard.
Three) energy circulation efficiency is high, can realize electric power and evenly export.Whole process mainly comprises motor lifting heavy, two actions of weight decline drawing generator generating.Motor technology maturation, raising efficiency can reach 95%, and decline generating efficiency can reach 92%, and overall system efficiency can reach 91%, and the power consumption of deduction haulage equipment, also can reach and approach 90%, far above 70% of the power station of drawing water.Intermittently transfer weight by multiple rails, and lowering velocity is planned, can realize the even output of electric power.
Four) can realize larger capacity energy storage, energy density is medium.Although single energy-accumulating power station capacity is generally little, generally only have large-scale pumped storage power power station tens of/mono-, addressing is flexible more than pumped storage power station, can also improve energy storage total amount by increasing energy-storage system quantity.The altitude of height height above sea level stacking platform is poor conventionally significantly higher than prior art (the supporting post height in pumped storage reservoir and CN201599160U), and optimum range is 200-400 rice.Suppose 200 meters of massif height above sea level drops, the system that all standardization pouring weight gross weights are 50,000 tons can be saved 26MWh energy, can store the generated energy at 26 hours nights of 2MW blower fan, can supply nearly ten thousand family families at the peak of power consumption power consumption in period.
Five) addressing scope is wide, and the construction period is shorter, and engineering construction can be achieved many things at one stroke, and can gather materials on the spot, and with low cost, total cost is low.Electric power storage system does not need to be chosen near water head site, can select the meagrely-populated region such as deserted mountain, Gobi desert, and can near addressing wind-driven generator.China has numerous geology hard, and the hilltop is mild, height and the suitable mountain ridge of the gradient can, for implementing, also can be chosen between valley or low-lying land and highland and build.In the Demonstration Application stage, the massif that can preferentially select mountain top easily to scabble.Consider that mountain top geological condition, conventionally be not as good as geological condition at the bottom of mountain, can build at multiple hilltops high height above sea level stacking platform, share a low height above sea level stacking platform.Process of construction can guide stage by stage carries out, and saves construction cost.First set up and rely on rail and the capstan winch drag and drop system on massif slope, mining apparatus is transported to mountain top by the trailer on rail, and fill and lead up at the bottom of the rubble of exploitation and soil are transported to mountain by the trailer on rail.Standardization pouring weight housing can adopt steel structure or reinforced concrete, and inner packing material can adopt stone and the sandstone of mountain top exploitation, or adds cheap poor iron ore.Equivalence proportion generally can reach the doubly left and right of 2.5-4 of water.Suppose that mountain top is for conical, needing level land, the mountain top diameter of building is 70 meters, and the mountain top gradient is 20-30 degree, needs to dig to adopt ten thousand cubes of cubic metres of earth and stone of 3-4, within general tens of days, can complete.Ten thousand tons of soil stone weight about 7-10, smooth suitable with standardization pouring weight filling weight at the bottom of basic and mountain, also can be for purposes such as Tian Haizao islands if any unnecessary native stone.Approximately 2,000 ten thousand yuan of total costs, comprise that 8,000,000 yuan of 1000 50 tons of standardization pouring weights are (while selecting higher massif, can further reduce the standardization pouring weight quantity that equal stored energy capacitance needs), approximately 5,000,000 yuan, some hoists (Gantry crane/travelling crane/tower crane), and rail sets up, restoration in earth-rock construction expense 5,000,000,2,000,000 yuan of motor and control system etc.According to accumulate 26MWh energy every day, power peak regulation timesharing price difference 0.15-0.2 unit/degree is calculated, every day approximately 5000 yuan of incomes, approximately 1,500,000 yuan of annual earnings.If further consider the effect that energy storage promotes near thermal power station generating efficiency, annual earnings can reach 2,000,000 yuan.If can combine with near wind-powered electricity generation power generation system, the waste that wind-power electricity generation off-grid is caused is transformed into peak regulation electric energy, and every day, income reached 1.6 ten thousand yuan of left and right.Therefore 4-10 is recoverable to investment.
Six) operation process is pollution-free, and energy is preserved free of losses for a long time, there is no environmental pollution and the life-span number of times problem of battery electric power storage.
In sum, the present invention utilizes the poor and standardization pouring weight gravitational potential energy of massif altitude to carry out energy storage and generating, promote standardization pouring weight by mechanical motion mode and carry out electric power energy storage, the problem such as can effectively overcome existing pumped storage technology and electric locomotive energy accumulating technique efficiency is low, cost is higher, floor space is large, and overcome the problems such as weight vertical-lift technical security coefficient is low.Suitable to especially good, the highly suitable region enforcement of massif geological condition.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is the structural representation of the embodiment of the present invention 2.
In figure: 1, massif; 2,2b, continuous rail; 3a, high height above sea level stacking platform; 3b, low height above sea level stacking platform; 4,4b, trailer; 5, standardization pouring weight; 6, hawser; 7,7b, hawser capstan winch; 8,8b, electric-driving generation integrating machine; 9a, 9b, rehandle facilities; 10a, 10b, 10c, 10d, stacker crane; 11, transformer; 12, electric roller; 13, control system; 14a, 14b, platform rail; 15a, 15b, automatic vehicle; A/B, weights group.
Embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1～Fig. 3, the present invention is a kind of gravity force energy storage system of relying on massif, comprise high height above sea level stacking platform 3a, low height above sea level stacking platform 3b, article at least two, inclination rail, some standardization pouring weights 5, electric power lifting and electricity generating device and control system 13, described standardization pouring weight 5 is piled up on described high height above sea level stacking platform 3a and described low height above sea level stacking platform 3b, on described high height above sea level stacking platform 3a and described low height above sea level stacking platform 3b, be respectively equipped with reprinting, transportation and Palletizer, on the slope between described high height above sea level stacking platform 3a and described low height above sea level stacking platform 3b, be equipped with at least two described inclination rails, every described inclination rail is provided with at least one section of continuous rail 2 or 2b, corresponding every described continuous rail 2 or 2b are provided with a set of described electric power and promote and electricity generating device.
The described electric power of every cover promotes and electricity generating device comprises a trailer 4, a hawser 6, a hawser capstan winch 7 and an electric-driving generation integrating machine 8, described trailer 4 is arranged on corresponding described continuous rail 2, and be connected with one end of described hawser 6, described hawser 6 is wound on described hawser capstan winch 7, described hawser capstan winch 7 is arranged on the platform edges of this continuous rail 2 or 2b top or bottom, adjacent with the end of this continuous rail 2 or 2b, described hawser capstan winch 7 is connected by mechanical transmission mechanism with described electric-driving generation integrating machine 8; Described control system 13 is controlled the working condition of described reprinting, transportation and Palletizer and described electric-driving generation integrating machine 8.
Said system can also comprise a kind of descending accelerating unit that applies downward pulling force or thrust to trailer.This device can adopt following arbitrary scheme: one) adopt one group of electric roller 12, be laid near the ground of the high height above sea level end of continuous rail 2 and 2b, contact and can apply in good time frictional force with the car body of trailer 4 by rubber tyre to promote trailer 4, improve the acceleration that trailer 4 moves downward, in order to shorten the downgoing time of trailer 4.Two) Vidacare corp is arranged on to the low height above sea level end of continuous rail 2 and 2b, is connected with trailer by rope, drag trailer in order to apply lower pulling force in good time, improve the acceleration that trailer moves downward, in order to shorten the downgoing time of trailer 4.Three) at the high height above sea level end of continuous rail, Vidacare corp is installed, low height above sea level end at continuous rail is installed pulley, Vidacare corp is connected with trailer by rope, the changed course of rope pile warp pulley, drag trailer in order to apply lower pulling force in good time, the acceleration moving downward to improve trailer, in order to shorten trailer downgoing time.Four) at the other third rail that is provided with of described continuous rail, on described trailer, Vidacare corp is housed, described Vidacare corp is connected with at least one wheel of trailer by the kind of drive, drag trailer in order to apply lower pulling force in good time, improve the acceleration that trailer moves downward, in order to shorten trailer downgoing time.
Embodiment 1:
Refer to Fig. 1 and Fig. 2, a kind of gravity force energy storage system of relying on massif, its basic layout is: one has the massif 1 of certain slope and height.On the hillside of massif 1, lay at least two inclination rails, in the present embodiment, every inclination rail is formed by one section of continuous rail 2, and continuous rail 2 adopts the railroad rail of standard, and gauge and sleeper etc. is suitably adjusted as required.Space between continuous rail 2 and massif hillside adopts reinforced concrete to build or adopt reinforced concrete upright column to support.Respectively execute and build a stacking platform at the two ends of continuous rail 2, high height above sea level stacking platform 3a who is positioned at mountain top and one are positioned at the low height above sea level stacking platform 3b at the foot of the hill.On every section of continuous rail 2, move a trailer 4, realize the lifting of standardization pouring weight 5 and transfer.The general straight line that adopts of continuous rail 2 is laid, but can there be the little bending of curvature at the rail two ends that tilt around substantially horizontal, to make the pouring weight on trailer be easier to reprint.
System comprises a large amount of standardization pouring weights 5 of manufacturing in advance, and standardization pouring weight is mainly made up of high gravity material, for example, adopt cylinder of steel inner filling sandstone or low taste iron ore at similar shipping container.Standardization pouring weight can be made cuboid cylinder of steel, about 2 × 2 × 4 meters of typical sizes, and volume is 16 cubic metres, approximately 50 tons of quality after filling sandstone; Typical sizes can be also 2 × 2 × 3 meters, and volume is 12 cubic metres, approximately 50 tons of quality after filling iron ore.Standardization pouring weight also can adopt reinforced concrete modularization prefabrication system to make.Can reference set when manufacturer's standard pouring weight vanning configuration design, in Si Ge corner, top, corner fittings is set, and on corresponding haulage equipment, container hanging fixture is being installed, shortcoming is that the hawser on fixture is longer, makes the height of haulage equipment larger.Also can be chosen in top suspension hook is installed, add the supporting elements such as gusset or reinforcing mesh in inside, and be greater than the pit of suspension hook size or cushion block or the sleeper of corresponding height are installed in bottom making, therefore can realize continuous stacking; Rubber cushion blocks or the spring cushion block with larger elastic force can be installed in pouring weight bottom, in the time that the rate of loading is higher, and the impact force while being conducive to reduce loading and stacking.
Position at high height above sea level stacking platform 3a near continuous rail 2, is provided with hawser capstan winch 7 and electric-driving generation integrating machine 8.On hawser capstan winch, volume has the hawser 6 suitable with continuous rail length, one end of hawser 6 is fixed on trailer 4, electric-driving generation integrating machine 8 is connected with hawser capstan winch 7 by the mode such as gear transmission or belt transmission, drive hawser capstan winch 7 to rotate, and then it is up to drag trailer 5.Trailer is conducted oneself with dignity generally 10 tons of left and right.
The electricity generation and electromotion integrated machine of electric-driving generation integrating machine 8 for generating electricity, relies on electronic technology automatically to realize the switching of power generation mode and Electric Traction pattern.In the time that trailer 4 relies on Gravitational sliding, the pulling force of hawser drives the rotating shaft of electric-driving generation integrating machine 8 to rotate and realizes generating.Electric-driving generation integrating machine 8 has continuous speed adjustment ability, can in larger speed range, export constant moment, also can in larger speed range, generate electricity.Energy-storage system obtains electric power by transformer 11 from electrical network, and the electric power that when generating generates generator is through transformer 11 or alternate manner input electrical network.
Due to 6, hawser output pulling force, therefore, at continuous rail 2 terminal positions near top, slope, according to end gradient concrete condition, some electric rollers 12 are installed, can apply initiatively thrust and make trailer 4 accelerate descending and enter steep slope section.Also can adopt on trailer 4 drive roller is installed, or the rope capstan winch driving at a translator of continuous rail terminal position installation at the foot of the hill drags trailer downslide by rope.Such scheme is all in order to make the descending acceleration of trailer.
Described high height above sea level stacking platform 3a and low height above sea level stacking platform 3b comprise one for platform geomery, standardization pouring weight size and weight and custom-designed logistics system.
Described system also comprises a control system 13, comprises main control computer and is arranged on the sensor on reprinting, transportation, Palletizer, electric-driving generation integrating machine and standard pouring weight, in order to realize scheduling and the automatic operating of energy-storage system.System is obtained the information such as the state such as position and speed and the distribution of standardization pouring weight on all stacking platforms of each equipment in mains supply demand, trailer and stacking platform by wired or communication, according to speed and the target location of above-mentioned information planning and control trailer and haulage equipment.
Hawser capstan winch installation position selection in Fig. 1 is on the ground of high height above sea level stacking platform.When actual enforcement, conventionally can before hawser capstan winch, increase a pulley that size is relatively little, change hawser trend, and hawser capstan winch is arranged on to the underground cabin of platform.In addition, also hawser capstan winch can be arranged on continuous rail end directly over, for example can be arranged on the crossbeam of rehandle facilities, now hawser fixed position is changed to trailer front side conventionally.Aforesaid way all can reduce or avoid the space interference between rehandle facilities and hawser capstan winch.
Can clearerly understand the structure of logistics system stacking platform from the system schematic top plan view shown in Fig. 2.Take stacking platform 3a as example, a typical streams system for stacking platform comprises: a rehandle facilities 9a can be to have less height and the travelling crane of job area.Its height only need be than the height height of standardization pouring weight a bit, and therefore its supporting frame can be realized very high rigidity, is conducive to realize carrying at a high speed.
Two stacker crane 10a and 10c, have larger height and range of translation.Suppose that piling height is 4 layers, standardization pouring weight height is about 8 meters, adds hook or stone tongs height, and stacker crane lifting height is about 10 meters.If stacking platform area is larger, piling only needs 3 layers.The configuration of described stacker crane can be any in the crane gears such as travelling crane, Gantry crane, tower crane, crane, preferentially chooses bridge-type or crane.
Article one, be arranged on the ground platform rail of stacking platform 14a, starting point is positioned at rehandle facilities 9a below, and terminal is the side away from rehandle facilities 9a at stacking platform.Rail 14a can be straight line, can be also arrangement of curves, can also be tree-shaped, ring-type or netted layout.A power-actuated automatic vehicle 15a of the upper operation of platform rail 14a.The power supply of automatic vehicle adopts the modes such as third rail or cable hoist.On automatic vehicle 15a, be provided with rubber tyre and with the supporting steel wheel of platform rail, steel wheel provides high rigidity to support, rubber tyre is realized higher travelling speed with rail (or ground) friction.Mean velocity, far above general rail steel wheel electric flat carriage (speed is 0.5m/s left and right), can approach or exceed trackless tire wheel electric flat carriage speed (about 1.5-2m/s) like this.In addition,, in order to realize full-automatic management and running, need to obtain the position of automatic vehicle.A kind of lower cost solution is that approach switch is installed on automatic vehicle, at platform rail, slug is installed along the line, and is measured in advance the position of slug simultaneously.Automatic vehicle operation time can obtain back to zero signal by approach switch, and according to the acquisition that converts of the encoder numerical value of drive motor.
If platform rail 14a curvature is larger, between the trend of automatic vehicle 15a and stacker crane system of coordinates, there is angle, an automatic turntable rotating around plummet now can be installed on automatic vehicle, for rotating standardization pouring weight, make pouring weight direction parallel with stacker crane direction of travel.
The shape of stacking platform depends on actual geographic environment.In building stacking platform, need to be according to platform size and shape layout stacker crane reasonable in design and platform rail, and definite stacker crane size.
On platform ground, be provided with the cart guide rail of stacker crane, on the crossbeam of stacker crane, be provided with the vehicle guide vertical with cart guide rail, realize the two-freedom translation of directions X and Y-direction by walking cart and walking dolly, and the elevating movement of Z direction mainly relies on lifting rope.Main bugbear is the quick location of lifting pouring weight, generally adopts input shaper control algorithm to reduce and eliminates overshoot.
If the slope steeper of position, mountain top, the degrees of freedom that more than two strands or two strands lifting rope provides an extra Y-direction in figure to rotate with the method for parallel kinematic can be installed on stacker crane, realize standardization pouring weight and change under heeling condition and level two states.
The workflow of the present embodiment is: in the night electricity trough period, stacker crane 10b on low height above sea level stacking platform 3b or 10d split out standardization pouring weight 5 and are transported on automatic vehicle 15b from buttress B, automatic vehicle 15b travels to rehandle facilities 9b below through platform rail 14b, then rehandle facilities 9b is loaded into standardization pouring weight 5 on trailer 4, electric-driving generation integrating machine 8 drags trailer 4 and goes upward to rehandle facilities 9a below, then rehandle facilities 9a is loaded into standardization pouring weight 5 on automatic vehicle 15a, automatic vehicle 15a travels to stacker crane 10a or 10c below through platform rail 14a, and be transported in buttress A by stacker crane.By continuous operation above-mentioned " de-stacking-lifting-piling " operation, the standardization pouring weight in buttress B all moves in buttress A.For clarity, in figure Parma A and buttress B, only drawn a small amount of standardization pouring weight.The electric power crest period by day, above-mentioned operation is according to reverse direction operation.
For fear of electrical network is produced and is impacted, need to reasonably plan the velocity curve of trailer, realize more level and smooth electric power input output.Suppose that energy-storage system is at electricity consumption trough period accumulate 8 hours, peak of power consumption period supplying power for outside 8 hours.Within 8 hours, promote or transfer whole 1000 pouring weights, the trailer on two continuous rails respectively needs to come and go for 500 times.Take each loading time as 8 seconds as example, when energy storage, each upward slope is about 29 seconds working time, and down slope time is about 13 seconds, and two trailers replace energy storage.Corresponding, at power generating stage, going up a slope at every turn and be about 13 seconds working time, down slope time is about 29 seconds, and two trailers replace generating.According to prior art level, above-mentioned time index has feasibility, but high-speed motion brings greater risk, if inclination rail quantity is better in the time of 3-4 bar.In addition, because gravity force energy storage system of the present invention has discretization, increase inclination rail quantity and be conducive to obtain the speed planning of more optimizing, reduce the load impact to electrical network.If a high height above sea level stacking platform cannot provide enough inclination rails, can share a low height above sea level stacking platform by multiple high height above sea level stacking platforms, or the multiple gravity force energy storage systems that access same electrical network are carried out to remote auto coordination, form independently intelligent control system.In addition can be equipped with as required the equipment such as super capacitor and realize the level and smooth of electric power input output.
For guaranteeing trailer driving safety, in system, can configure some safety measures, for example: one) on trailer, be provided with rail friction brake.Described rail friction brake is made up of compressed air cylinder, pneumatic linear actuator and friction catch piece.In the time that generation cable surprisingly ruptures, described compressed air cylinder drives the push rod translation of pneumatic linear actuator, contacts with at least one long strip region on inclination rail surface by pairing wedge-like briquetting reinforcement pusher kinetic friction braking plate, realizes and slowing down and parking.Two) the low height above sea level end terminal of continuous rail is provided with anti-collision equipment.Described anti-collision equipment is made up of baffle plate, hydraulically extensible cylinder and Decompression valves.Described baffle plate has plastic deformation ability, and surface binding has rubber tyre.Described hydraulically extensible cylinder is connected by mechanical hinge with baffle plate, and described oil hydraulic cylinder connects Decompression valves.Described Decompression valves has releasing pressure automatically ability, in the time that baffle plate is subject to impacting, the high pressure oil of superpressure is injected into low pressure oil tank.
Be: one) every inclination rail is made up of two sections of continuous rails 2,2b their travel respectively trailer 4 and 4b above with embodiment 1 difference.Two) position is provided with middle transfer platform on the hillside, in the middle of being provided with on middle transfer platform, rehandle facilities 9c and electric power promote and electricity generating device, the quantity of electric power lifting and electricity generating device is corresponding one by one with the quantity of continuous rail below middle transfer platform, electric power lifting is identical with electricity generating device with the lifting of the electric power in embodiment 1 with generating device structure, comprises electric-driving generation integrating machine 8b, hawser capstan winch 7b and trailer 4b; Middle rehandle facilities 9c is responsible for standardization pouring weight 5 to reprint trailer 4b from trailer 4, or oppositely reprints.The present embodiment is more suitable for having on massif and is multiplely connected but moves towards the situation on different slopes.
To sum up, the present invention has at least two stacking platforms, and wherein described at least one, stacking platform construction is at the higher elevational position of massif, and described at least one, stacking platform construction is at the lower elevational position of massif.Each stacking platform comprises at least a set of reprinting, transportation and Palletizer, realizes the conveyorization between multiple diverse locations of standardization pouring weight on platform.
Above-mentioned Palletizer has two or more freedom of movement, in order to translation and lifting standardization pouring weight; Described Palletizer can be Gantry crane, or travelling crane, or tower crane, or the hoist of other type.Rehandle facilities and Palletizer alternately pick up puts standardization pouring weight, realizes stacking and the de-stacking more wider than single haulage equipment job area.Thereby standardization pouring weight is used for being thus lifted to high elevational position increases electric energy conversion gravitational potential energy for self, and for being delegated to low elevational position, the gravitational potential energy of self is converted into electric energy.The weight of standardization pouring weight is normalized fixed value.
The workflow of said system is: for example, trough period of electricity needs (night 9 to point on daytimes 7), temporary transient to electrical network (also comprising micro power network), power station or wind power generating set superfluous electric drive lifting device is risen to high height above sea level stacking platform by standardization pouring weight from low height above sea level stacking platform, realize the storage of gravitational potential energy.For example, by transfer standardization pouring weight realize generating in crest period of electricity needs (daytime to point at nights 9) at 7.
Although by reference to the accompanying drawings the preferred embodiments of the present invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not departing from the scope situation that aim of the present invention and claim protect, can also make a lot of forms, within these all belong to protection scope of the present invention.
Claims (9)
1. a gravity force energy storage system of relying on massif, is characterized in that, comprises high height above sea level stacking platform, low height above sea level stacking platform, at least two inclination rails, some standardization pouring weights, electric power lifting and electricity generating device and control system;
Described standardization pouring weight is piled up on described high height above sea level stacking platform and described low height above sea level stacking platform,
On described high height above sea level stacking platform and described low height above sea level stacking platform, be respectively equipped with reprinting, transportation and Palletizer,
On the slope between described high height above sea level stacking platform and described low height above sea level stacking platform, be equipped with at least two described inclination rails, every described inclination rail is provided with at least one section of continuous rail,
Corresponding every section of described continuous rail is provided with a set of described electric power and promotes and electricity generating device;
The described electric power of every cover promotes and electricity generating device comprises a trailer, a hawser, a hawser capstan winch and an electric-driving generation integrating machine, described trailer is arranged on corresponding described continuous rail, and be connected with one end of described hawser, described hawser is wound on described hawser capstan winch, described hawser capstan winch is arranged on the platform edges of this continuous rail top or bottom, adjacent with the end of this continuous rail, described hawser capstan winch is connected by mechanical transmission mechanism with described electric-driving generation integrating machine;
The working condition of reprinting described in described control system control, transportation and Palletizer and described electric-driving generation integrating machine.
2. the gravity force energy storage system of support massif according to claim 1, is characterized in that, described trailer is provided with descending accelerating unit.
3. the gravity force energy storage system of support massif according to claim 1, it is characterized in that, transfer platform in the middle of being provided with between described high height above sea level stacking platform and described low height above sea level stacking platform, every described inclination rail is made up of two sections of described continuous rails, rehandle facilities in the middle of described middle transfer platform is provided with.
4. the gravity force energy storage system of support massif according to claim 1, is characterized in that, is provided with anti-collision equipment at the low height above sea level end of described continuous rail.
5. the gravity force energy storage system of support massif according to claim 1, is characterized in that, is provided with rail friction brake on described trailer.
6. the gravity force energy storage system of support massif according to claim 1, it is characterized in that, described reprinting, transportation and Palletizer comprise at least one rehandle facilities, at least one platform rail, at least one automatic vehicle, at least one stacker crane, described rehandle facilities is arranged on the end of described continuous rail, one end of described platform rail is positioned at the below of described rehandle facilities, and the other end is positioned at the side of platform away from rehandle facilities.
7. the gravity force energy storage system of support massif according to claim 6, is characterized in that, on described automatic vehicle, be provided with rubber tyre and with the supporting steel wheel of described platform rail.
8. the gravity force energy storage system of support massif according to claim 1, it is characterized in that, the top of described standardization pouring weight is provided with suspension hook or suspension ring or corner fittings, the consistent size of all described standardization pouring weights, and profile is cuboid, Polygonal column shape or cylindrical.
9. the gravity force energy storage system of support massif according to claim 1, is characterized in that, described trailer comprises at least one joint compartment.
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