CN103486008A - Energy storage device and energy storage method - Google Patents
Energy storage device and energy storage method Download PDFInfo
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- CN103486008A CN103486008A CN201310392285.3A CN201310392285A CN103486008A CN 103486008 A CN103486008 A CN 103486008A CN 201310392285 A CN201310392285 A CN 201310392285A CN 103486008 A CN103486008 A CN 103486008A
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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
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- 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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Abstract
The embodiment of the invention discloses an energy storage device and an energy storage method. The energy storage device comprises an air compressor, a high pressure gasholder, a working cylinder, a hydraulic motor and a generator, wherein the air compressor is used for generating high pressure air and conveying the high pressure air to the high pressure gasholder through a first gas pipeline, the high pressure gasholder is used for receiving and storing the high pressure air from the air compressor and conveying the high pressure air to the working cylinder through a second gas pipeline, the working cylinder is used for conveying working fluid to the inlet of the hydraulic motor under the action of the high pressure air so as to drive the hydraulic motor to rotate, and recovering the working fluid flowing out of the hydraulic motor, the hydraulic motor is connected with the generator for driving the generator, and the generator is used for generating electricity under the driving of the hydraulic motor. The energy storage device and the energy storage method disclosed by the invention are high in adaptability, flexible in use and relatively low in cost.
Description
Technical field
The present invention relates to energy field, particularly a kind of energy storage device and energy storage method.
Background technique
The green energy resource such as wind energy, solar energy has environmental protection, cleaning and the advantage such as renewable, but also has the shortcoming of intermittent and poor stability simultaneously, and these shortcomings can cause the interruption of electric energy supply.In addition, the ability of green energy resource output electric energy can't be synchronizeed with need for electricity.Specifically, usually peak of power consumption usually by day, at night, and the generating capacity of a power station is normally fixing for low ebb.The generating capacity of power station is fixing may cause the daytime electricity not enough, and electricity tood many or too much for use and was wasted evening.The appearance of energy storage device and energy storage method can realize dsm effectively, peak-valley difference between elimination round the clock, level and smooth power load.At present existing main energy storage technology comprises compressed-air energy storage, pumped storage etc.
Traditional compressed-air energy-storage system is based on a kind of energy-storage system of gas turbine technology exploitation, in low power consumption is pressed into gas storage chamber by gas, thereby is that gas internal energy stores by electric energy conversion; In peak of power consumption, pressurized gas are discharged from gas storage chamber, enter gas-turbine combustion chamber and burn together with fuel, then drive turbine power generation.Conventional compression air energy-storage system has that stored energy capacitance is large, the energy storage cycle long, efficiency is higher and the advantage such as specific investment cost less, but compressed-air energy-storage system also needs specific geographical conditions to build large-scale gas storage chamber, as rock cavity, Yan Dong, abandoned mine etc., thereby greatly limited the application area of conventional compression air energy-storage system, due to the needs combustion gas, also polluted to a certain extent air simultaneously.
Traditional water-pumping energy-storage system is by water pump, water to be delivered to elevated reservoir from the low level reservoir at low power consumption, thereby the potential energy that is water by electric energy conversion stores; In peak of power consumption, water is disposed to the low level reservoir from elevated reservoir and drives the water turbine generating.Traditional water-pumping energy-storage system advantages such as maturation, efficiency is high, stored energy capacitance is large, the energy storage cycle is unrestricted that possess skills, but extensive water-pumping energy-storage system needs special geographical conditions to build two reservoirs and dam, Applicable scope is little, construction period is long, and initial investment is large.More thorny, building large reservoir can large size flood even city of vegetation, causes ecology and immigration problem, and therefore building extensive water-pumping energy-storage system has been subject to increasing restriction.
Summary of the invention
A kind of energy storage device and energy storage method are provided in the embodiment of the present invention, and applicability is strong, uses flexibly, and cost is lower.
In order to solve the problems of the technologies described above, the embodiment of the invention discloses following technological scheme:
On the one hand, provide a kind of energy storage device, described energy storage device comprises:
Air compressor, for generation of pressurized gas, and be delivered to described high pressure tank by described pressurized gas by the first gas piping;
High pressure tank, for from described air compressor, receiving and store described pressurized gas, and be delivered to described clutch release slave cylinder by the second gas piping by described pressurized gas;
Clutch release slave cylinder, for described working liquid body being delivered to the entrance of described oil hydraulic motor under the effect of described pressurized gas, rotate to drive described oil hydraulic motor, and described clutch release slave cylinder is also for reclaiming the working liquid body flowed out from the outlet of described oil hydraulic motor;
Oil hydraulic motor, be connected with described generator, for driving described generator;
Generator, for generating electricity under the driving of oil hydraulic motor.
In the first possibility implementation of first aspect, described clutch release slave cylinder comprises the first clutch release slave cylinder and the second clutch release slave cylinder, described the first clutch release slave cylinder is connected with the entrance of described oil hydraulic motor by the first liquid pipeline, and described the first clutch release slave cylinder also is connected with the outlet of described oil hydraulic motor by the second liquid pipeline;
Described the second clutch release slave cylinder is connected with the entrance of described oil hydraulic motor by the first liquid pipeline, and described the second clutch release slave cylinder also is connected with the outlet of described oil hydraulic motor by the second liquid pipeline;
At initial shift, described the first clutch release slave cylinder for passing through described working liquid body the entrance of described first liquid Pipeline transport to described oil hydraulic motor under the effect of described pressurized gas, to drive described oil hydraulic motor to rotate, the second clutch release slave cylinder is for reclaiming described working liquid body by the second liquid pipeline from the outlet of described oil hydraulic motor;
At the second working stage, described the second clutch release slave cylinder for passing through described working liquid body the entrance of described first liquid Pipeline transport to described oil hydraulic motor under the effect of described pressurized gas, to drive described oil hydraulic motor to rotate, described the first clutch release slave cylinder is for reclaiming described working liquid body by the second liquid pipeline from the outlet of described oil hydraulic motor.
In the first possibility implementation of first aspect, the second possibility implementation of first aspect also is provided, described energy storage device also comprises heat-energy recovering apparatus, for absorbing and storing heat, the heat of described absorption is that described air compressor produces the heat produced in the pressurized gas process, comprises the heat of air compressor body and the heat that described pressurized gas carry; Described energy recovery storage device is also for discharging the heat of storage at working stage.
In the second possibility implementation of first aspect, the third possibility implementation of first aspect also is provided, described heat-energy recovering apparatus comprises heat sink, described heat sink comprises around water jacket, the described surface that is surrounded on described air compressor around water jacket, for absorbing the heat of described air compressor body.
In the third possibility implementation of first aspect, the 4th kind of possibility implementation of first aspect also is provided, described heat sink also comprises the energy recovery pond, described energy recovery pond is connected around water jacket with described with the 4th liquid line by the 3rd liquid line, for receiving the described heat absorbed around water jacket, the heat that also carry for the pressurized gas that absorb described the first gas piping in described energy recovery pond, described energy recovery pond also at working stage by the thermal release of described storage to the pressurized gas of described the second gas piping; Wherein, described the first gas piping and the second gas piping are internally through described energy recovery pond.
In the 4th kind of possibility implementation of first aspect, the 5th kind of possibility implementation of first aspect also is provided, be provided with heat-absorbing medium in described heat sink, described heat-absorbing medium is liquid.
In the 4th kind of possibility implementation of first aspect, the 6th kind of possibility implementation of first aspect also is provided, described heat-absorbing medium is water.
In the 4th kind of possibility implementation of first aspect, the 7th kind of possibility implementation of first aspect also is provided, described heat-energy recovering apparatus also comprises storage device, described storage device is from the described energy recovery of outer wrap pond, for storing the heat that described heat sink absorbs, described storage device also at described working stage by the thermal release of described storage to the energy recovery pond.
The 7th kind of first aspect may implementation in, also provide the 8th kind of first aspect may implementation, be provided with energy-accumulating medium in described storage device, described energy-accumulating medium is a kind of in liquid or solid.
In the 7th kind of possibility implementation of first aspect, the 9th kind of possibility implementation of first aspect also is provided, described energy-accumulating medium is carbonite.
In the tenth kind of possibility implementation of first aspect, described energy storage device also comprises controller, pressure for the liquid of discharging according to the pressure of the pressurized gas in described clutch release slave cylinder and described clutch release slave cylinder, regulate the running parameter of described oil hydraulic motor, so that the described generator of described fluid motor-driven is to preset power stage.
In the 11 kind of possibility implementation of first aspect, described air compressor is reciprocating compressor.
In the 12 kind of possibility implementation of first aspect, described oil hydraulic motor is connected with described generator by coupling.
In the 13 kind of possibility implementation of first aspect, described oil hydraulic motor is the compensator pressure motor.
In the 14 kind of possibility implementation of first aspect, described generator is the frequency conversion motor.
Second aspect, provide a kind of energy storage method, and described method comprises:
Air compressor produces pressurized gas, and described pressurized gas are delivered to high pressure tank by the first gas piping;
Described high pressure tank receives and stores described pressurized gas from described air compressor, and by the second gas piping, described pressurized gas is delivered to clutch release slave cylinder;
Described clutch release slave cylinder is delivered to working liquid body the entrance of oil hydraulic motor under the effect of described pressurized gas, drives described oil hydraulic motor to rotate, and reclaims described working liquid body from the outlet of described oil hydraulic motor;
Described hydraulic motor-driving generator;
Described generator generates electricity under the driving of described oil hydraulic motor.
In the first possibility implementation of second aspect, described clutch release slave cylinder is delivered to working liquid body the entrance of oil hydraulic motor under the effect of described pressurized gas, drive described oil hydraulic motor to rotate, and reclaim described working liquid body from the outlet of described oil hydraulic motor and specifically comprise:
At initial shift, described the first clutch release slave cylinder passes through described working liquid body the entrance of first liquid Pipeline transport to described oil hydraulic motor under the effect of described pressurized gas, to drive described oil hydraulic motor to rotate, the second clutch release slave cylinder reclaims described working liquid body by the second liquid pipeline from the outlet of described oil hydraulic motor;
At the second working stage, described the second clutch release slave cylinder passes through described working liquid body the entrance of described first liquid Pipeline transport to described oil hydraulic motor under the effect of described pressurized gas, to drive described oil hydraulic motor to rotate, described the first clutch release slave cylinder reclaims described working liquid body by the second liquid pipeline from the outlet of described oil hydraulic motor.
In the first possibility implementation of second aspect, the second possibility implementation of second aspect also is provided, described method also comprises:
Heat-energy recovering apparatus absorbs and storing heat, and the heat of described absorption is that described air compressor produces the heat produced in the pressurized gas process, comprises the heat of air compressor body and the heat that described pressurized gas carry;
At described working stage, described heat-energy recovering apparatus release heat.
In the second possibility implementation of second aspect, the third possibility implementation of second aspect also is provided, described heat-energy recovering apparatus absorbs heat and specifically comprises:
Absorb the heat of described air compressor body around water jacket in heat sink in described heat-energy recovering apparatus, wherein, the described surface that is surrounded on described air compressor around water jacket.
In the third possibility implementation of second aspect, the 4th kind of possibility implementation of second aspect also is provided, described heat-energy recovering apparatus absorbs heat and specifically also comprises:
Energy recovery pond in heat sink in described heat-energy recovering apparatus receives the described heat absorbed around water jacket;
Described energy recovery pond absorbs the heat that the pressurized gas in described the first gas piping carry, and wherein, described the first gas piping is internally through described energy recovery pond;
Described heat-energy recovering apparatus release heat specifically comprises:
Described energy recovery pond is by the pressurized gas in thermal release to the second gas piping, and wherein, described the second gas piping is internally through described energy recovery pond.
In the 4th kind of possibility implementation of second aspect, the 5th kind of possibility implementation of second aspect also is provided, be provided with heat-absorbing medium in described heat sink, described heat-absorbing medium is liquid.
In the 4th kind of possibility implementation of second aspect, the 6th kind of possibility implementation of second aspect also is provided, described heat-absorbing medium is water.
In the 4th kind of possibility implementation of second aspect, the 7th kind of possibility implementation of second aspect also is provided, and described heat-energy recovering apparatus storing heat specifically comprises: the heat that the described heat sink of the memory device stores in described heat-energy recovering apparatus absorbs;
Described heat-energy recovering apparatus release heat specifically also comprises: described storage device by stored thermal release to the energy recovery pond.
The 7th kind of second aspect may implementation in, also provide the 8th kind of second aspect may implementation, be provided with energy-accumulating medium in described storage device, described energy-accumulating medium is a kind of in liquid or solid.
In the 7th kind of possibility implementation of second aspect, the 9th kind of possibility implementation of second aspect also is provided, described energy-accumulating medium is carbonite.
In the tenth kind of possibility implementation of second aspect, described energy storage method also comprises:
The pressure of the liquid that controller is discharged according to the pressure of the pressurized gas in described clutch release slave cylinder and described clutch release slave cylinder, regulate the running parameter of described oil hydraulic motor, so that the described generator of described fluid motor-driven is to preset power stage.
In the 11 kind of possibility implementation of second aspect, described air compressor is reciprocating compressor.
In the 12 kind of possibility implementation of second aspect, described oil hydraulic motor is connected with described generator by coupling.
In the 13 kind of possibility implementation of second aspect, described oil hydraulic motor is the compensator pressure motor.
In the 14 kind of possibility implementation of second aspect, described generator is variable-frequency motor.
Embodiments of the invention provide a kind of energy storage device and energy storage method, and described energy storage device comprises: air compressor for generation of pressurized gas, and is delivered to high pressure tank by pressurized gas by the first gas piping; High pressure tank, for receive and store described pressurized gas from air compressor, and be delivered to clutch release slave cylinder by the second gas piping by described pressurized gas; Clutch release slave cylinder, for working liquid body being delivered to the entrance of oil hydraulic motor under the effect of pressurized gas, rotate to drive described oil hydraulic motor, and clutch release slave cylinder is also for reclaiming the working liquid body flowed out from the outlet of oil hydraulic motor; Oil hydraulic motor, be connected with generator, for driving generator; Generator, for generating electricity under the driving of oil hydraulic motor.The disclosed energy storage device volume of the embodiment of the present invention is little, little to the dependence of geographical conditions, so applicability is strong, uses flexibly, and cost is lower.
The accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, below will the accompanying drawing of required use in embodiment be briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Figure 1 shows that the structural representation of the energy storage device of the embodiment of the present invention;
Figure 2 shows that the schematic diagram of the energy storage device of the embodiment of the present invention in the preparatory stage;
Figure 3 shows that the schematic diagram of the energy storage device of the embodiment of the present invention at initial shift;
Figure 4 shows that the schematic diagram of the energy storage device of the embodiment of the present invention at the second working stage;
Figure 5 shows that the flow chart of the energy storage method of the embodiment of the present invention.
Embodiment
The present invention is following embodiment provide a kind of energy storage device and energy storage method, and applicability is strong, uses flexibly, and cost is lower.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technological scheme in the embodiment of the present invention is carried out to clear, complete description, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiments.Embodiment based in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment who obtains, belong to the scope of protection of the invention.
As shown in Figure 1, the embodiment of the present invention provides a kind of energy storage device, and described energy storage device comprises:
Air compressor 1, for generation of pressurized gas, and be delivered to high pressure tank 3 by pressurized gas by the first gas piping 17.
Air compressor 1 in the embodiment of the present invention is reciprocating compressor.
Clutch release slave cylinder 101, for working liquid body being delivered to the entrance of oil hydraulic motor 6 under the effect of pressurized gas, rotate to drive described oil hydraulic motor 6, and clutch release slave cylinder 101 is also for reclaiming the working liquid body flowed out from oil hydraulic motor 6 outlets.
Oil hydraulic motor 6, be connected with generator 7, for driving generator 7.
Generator 7, for generating electricity under the driving at oil hydraulic motor 6.
In the embodiment of the present invention, described oil hydraulic motor 6 is connected with described generator 7 by coupling (not drawing in Fig. 1).
The disclosed energy storage device volume of the embodiment of the present invention is little, little to the dependence of geographical conditions, so applicability is strong, uses flexibly, and cost is lower.Simultaneously, the disclosed energy storage device of the embodiment of the present invention when the Conversion of Energy by storage is electric energy without combustion gas, therefore comparatively environmental protection.
The workflow of the energy storage device of the embodiment of the present invention comprises energy storage stage, preparatory stage and working stage, and working stage is also referred to as power generating stage.Working stage comprises initial shift and the second working stage.
As shown in Figure 1, the clutch release slave cylinder 101 of the embodiment of the present invention comprises the first clutch release slave cylinder 4 and the second clutch release slave cylinder 5, the first clutch release slave cylinder 4 is connected with the entrance of described oil hydraulic motor 6 by first liquid pipeline 19, and the first clutch release slave cylinder 4 also is connected with the outlet of described oil hydraulic motor 6 by second liquid pipeline 20.
The second clutch release slave cylinder 5 is connected with the entrance of described oil hydraulic motor 6 by first liquid pipeline 19, and the second clutch release slave cylinder 5 is connected with the outlet of described oil hydraulic motor 6 by second liquid pipeline 20.
At initial shift, described the first clutch release slave cylinder 4 for being delivered to described working liquid body the entrance of described oil hydraulic motor 6 under the effect of described pressurized gas by described first liquid pipeline 19, to drive described oil hydraulic motor 6 to rotate, the second clutch release slave cylinder 5 is for reclaiming described working liquid body by second liquid pipeline 20 from the outlet of described oil hydraulic motor 6.
At the second working stage, described the second clutch release slave cylinder 5 for being delivered to described working liquid body the entrance of described oil hydraulic motor 6 under the effect of described pressurized gas by described first liquid pipeline 19, to drive described oil hydraulic motor 6 to rotate, described the first clutch release slave cylinder 4 is for reclaiming described working liquid body by second liquid pipeline 20 from the outlet of described oil hydraulic motor 6.
As shown in Figure 1, described energy storage device also comprises heat-energy recovering apparatus, for absorbing and storing heat, the heat of described absorption is that described air compressor produces the heat produced in the pressurized gas process, comprises the heat of air compressor body and the heat that described pressurized gas carry; Described heat-energy recovering apparatus is also for discharging the heat of storage at working stage.
Described heat-energy recovering apparatus comprises heat sink, and described heat sink comprises around water jacket (not drawing in Fig. 1), and the described surface that is surrounded on described air compressor 1 around water jacket, for absorbing the heat of described air compressor 1 body.
Described heat sink also comprises energy recovery pond 2, and described energy recovery pond 2 is connected around water jacket with described with the 4th liquid line 16 by the 3rd liquid line 15, for receiving the described heat absorbed around water jacket.The heat that also carry for the pressurized gas that absorb described the first gas piping 17 in described energy recovery pond 2, wherein, described the first gas piping 17 is internally through described energy recovery pond 2.Described energy recovery pond 2 also at working stage by the thermal release of described storage to the pressurized gas of described the second gas piping 18; Wherein, the second gas piping 18 is internally through described energy recovery pond.
Be provided with heat-absorbing medium in described heat sink, described heat-absorbing medium is liquid.Preferably, heat-absorbing medium is water.
Described heat-energy recovering apparatus also comprises storage device 201, and described storage device 201 is from outer wrap energy recovery pond 2, and the heat absorbed for storing described heat sink, can also prevent that thermal release is in air simultaneously; Described storage device 201 also at described working stage by the thermal release of described storage to energy recovery pond 2.
Be provided with energy-accumulating medium in described storage device, described energy-accumulating medium is a kind of in liquid or solid.Preferably, energy-accumulating medium is carbonite.
Adopt heat-energy recovering apparatus to absorb and storing heat, can fall low-energy loss, in working stage heat-energy recovering apparatus release heat, can increase the interior energy of gas, thereby improve the energy transformation ratio of whole system.
Describe the workflow of the energy storage device of the embodiment of the present invention in detail below in conjunction with Fig. 2 to Fig. 4.
In the energy storage stage, the pressurized gas that air compressor 1 produces, pressurized gas enter high pressure tank 3 through the first gas piping 17.The heat of air compressor 1 body is absorbed by the heat-absorbing medium around in water jacket, and is stored device 201 and stores; The heat that pressurized gas carry is also absorbed by the heat-absorbing medium in energy recovery pond 2, and is stored device 201 and stores.Figure 2 shows that the schematic diagram of preparatory stage of the energy storage device of the embodiment of the present invention.
As shown in Figure 2, the first clutch release slave cylinder 4 comprises the first gas valve 9, first liquid valve 10, second liquid valve 11 and first row gas port 21.The first clutch release slave cylinder 4 also comprises first row/liquid entering hole 23, in the first clutch release slave cylinder 4, being filled with working liquid body, also for discharge working liquid body when energy storage device is idle.
The second clutch release slave cylinder 5 comprises the second gas valve 8, the 3rd Liquid valve 12, the 4th Liquid valve 13 and second row gas port 22.The second clutch release slave cylinder 5 also comprises second row/liquid entering hole 24, in the second clutch release slave cylinder 5, being filled with working liquid body, also for discharge working liquid body when energy storage device is idle.
In the preparatory stage, can in the first clutch release slave cylinder 4, be filled with working liquid body, also can in the second clutch release slave cylinder 5, be filled with working liquid body, below take and be filled with working liquid body as example in the first clutch release slave cylinder 4, the workflow of the energy storage device of the embodiment of the present invention is described.
In the preparatory stage, be filled with working liquid body in the first clutch release slave cylinder 4, generally, the working liquid body volume accounts for 4/5 of clutch release slave cylinder volume.Now, the first row gas port 21 of the first clutch release slave cylinder 4 is closed, and the first gas valve 9 is closed, and first liquid valve 10 is closed, and second liquid valve 11 is closed,
In the preparatory stage, the second gas valve 8 in the second clutch release slave cylinder 5 is closed, and second row gas port 22 is closed, and the 3rd Liquid valve 12 is closed, and the 4th Liquid valve 13 is closed.
The working stage of the energy storage device of the embodiment of the present invention divides initial shift and the second working stage, Figure 3 shows that the schematic diagram of energy storage device at initial shift; Figure 4 shows that the schematic diagram of energy storage device at the second working stage.
As shown in Figure 3, at initial shift, the first gas valve 9 of the first clutch release slave cylinder 4 is opened, and first liquid valve 10 is closed, and second liquid valve 11 is opened, first row gas port 21 is closed, now, the second gas valve 8 of the second clutch release slave cylinder 5 is closed, and the 3rd Liquid valve 12 is opened, the 4th Liquid valve 13 is closed, and relief opening 22 is opened.High pressure tank 3 mesohigh gases enter the first clutch release slave cylinder 4 by the second gas piping 18.In the first clutch release slave cylinder, 4 working liquid body, under the effect of pressurized gas, enters the entrance of oil hydraulic motor 6 by first liquid pipeline 19, drives described oil hydraulic motor 6 to rotate.The second clutch release slave cylinder 5 is the outlet recovery operation liquid from liquid motor 6 by second liquid pipeline 20.
The temperature of the pressurized gas in high pressure tank 3 can reduce gradually along with time history, and therefore at working stage, the temperature of the pressurized gas in high pressure tank 3 may be lower than absorbing medium in energy recovery pond 2.Within pressurized gas in high pressure tank 3 enter the first clutch release slave cylinder 4 by the second gas piping 18, pressurized gas in 2 heating the second gas pipings 18 of energy recovery pond, heat energy recovery pond 2 is by the pressurized gas in the thermal release to the second of its storage gas piping 18.Simultaneously, storage device 201 also by stored thermal release to energy recovery pond 2.
At working stage, the pressurized gas temperature in high pressure tank 3 also may equal the temperature of the absorbing medium in energy recovery pond 2, and now heat-energy recovering apparatus does not give off heat to the pressurized gas in the second gas piping 18.
At initial shift at the end, the working liquid body in the first clutch release slave cylinder 4 drains, within working liquid body is transferred to the second clutch release slave cylinder 5.
Now the second clutch release slave cylinder 5 relief openings 22 are in open mode, barometric pressure in the second clutch release slave cylinder 5 equals external atmospheric pressure, what in the first clutch release slave cylinder 4, be filled with is pressurized gas, plus sige in Fig. 3 in the first clutch release slave cylinder 4 and the second clutch release slave cylinder 5 can represent gas pressure, and the gas pressure be depicted as in the first clutch release slave cylinder 4 is greater than the gas pressure in the second clutch release slave cylinder 5.
As shown in Figure 4, at the second working stage, the second gas valve 8 of the second clutch release slave cylinder 5 is opened, and the 3rd Liquid valve 12 is closed, and the 4th Liquid valve 13 is opened, relief opening 22 is closed, now, the first gas valve 9 of the first clutch release slave cylinder 4 is closed, and first liquid valve 10 is opened, second liquid valve 11 is closed, and first row gas port 21 is opened.Pressurized gas enter the second clutch release slave cylinder 5 by the second gas piping 18.Working liquid body in the second clutch release slave cylinder 5, under the effect of pressurized gas, enters the entrance of oil hydraulic motor 6 by first liquid pipeline 19, drive described oil hydraulic motor 6 to rotate.The first clutch release slave cylinder 4 is the outlet recovery operation liquid from liquid motor 6 by second liquid pipeline 20.
Now the first clutch release slave cylinder 4 relief openings 21 are in open mode, barometric pressure in the first clutch release slave cylinder 4 equals external atmospheric pressure, what in the second clutch release slave cylinder 5, be filled with is pressurized gas, plus sige in Fig. 4 in the first clutch release slave cylinder 4 and the second clutch release slave cylinder 5 can represent gas pressure, and the gas pressure be depicted as in the first clutch release slave cylinder 4 is less than the gas pressure in the second clutch release slave cylinder 5.
At working stage, adopt two clutch release slave cylinders to provide highly pressurised liquid to oil hydraulic motor 6 in turn, but continuous operation has improved efficiency.
At working stage, along with gas expansion for doing work, the pressure of gas has certain decay, and the pressure of the liquid of discharge also has certain decay, and therefore, oil hydraulic motor 6 should be selected the compensator pressure motor, and generator 7 is also selected the frequency conversion motor accordingly.
Described energy storage device also comprises controller 14, the pressure of the liquid of discharging for pressure and the described clutch release slave cylinder 101 of the pressurized gas according in described clutch release slave cylinder 101, regulate the running parameter of described oil hydraulic motor 6, so that described oil hydraulic motor 6 drives described generator 7 to preset power stage.
Adopt controller 14 to control the running parameter of oil hydraulic motor 6, oil hydraulic motor 6 is selected the compensator pressure motor simultaneously, and generator 7 is selected frequency conversion generator, can make generator 7 with comparatively stable default power stage.
Generally, in order more to take full advantage of pressurized gas expansion acting, reduce the pressure loss of gas, when initial shift starts or after starting a rear shorter time period, for example, after discharging 1/5 liquid volume, close the first gas valve 9, now pressurized gas are in the interior abundant expansion acting of the first clutch release slave cylinder 4, at initial shift at the end, discharge the gas in clutch release slave cylinder.In like manner, when the second working stage starts or after starting a rear shorter time period, for example, after discharging 1/5 liquid volume, close the second gas valve 8.Actual timing node of closing gas valve, can be controlled as the case may be by controller 14.
Corresponding with above-mentioned energy storage device, the embodiment of the present invention also provides a kind of energy storage method, and as described in Figure 5, described energy storage method comprises:
The disclosed energy storage method of the embodiment of the present invention is little to the dependence of geographical conditions, so applicability is strong, uses flexibly, and cost is lower, and in addition, energy storage method disclosed by the invention can be electric energy by the Conversion of Energy of storage without combustion gas, therefore comparatively environmental protection.
Step 503 specifically comprises: at initial shift, described the first clutch release slave cylinder 4 is delivered to described working liquid body the entrance of described oil hydraulic motor 6 under the effect of described pressurized gas by first liquid pipeline 19, to drive described oil hydraulic motor 6 to rotate, the second clutch release slave cylinder 5 reclaims described working liquid body by second liquid pipeline 20 from the outlet of described oil hydraulic motor 6.
At the second working stage, described the second clutch release slave cylinder 5 is delivered to described working liquid body the entrance of described oil hydraulic motor 6 under the effect of described pressurized gas by described first liquid pipeline 19, to drive described oil hydraulic motor 6 to rotate, described the first clutch release slave cylinder 4 reclaims described working liquid body by second liquid pipeline 20 from the outlet of described oil hydraulic motor 6.
The energy storage method of the embodiment of the present invention also comprises: heat-energy recovering apparatus absorbs and storing heat, the heat of described absorption is that described air compressor 1 produces the heat produced in the pressurized gas process, comprises the heat of air compressor 1 body and the heat that described pressurized gas carry; At described working stage, described heat-energy recovering apparatus release heat.
Described heat-energy recovering apparatus absorbs heat and specifically comprises: the heat sink in described heat-energy recovering apparatus comprises around water jacket, the described heat that absorbs described air compressor 1 body around water jacket, wherein, the described surface that is surrounded on described air compressor 1 around water jacket.
Described heat-energy recovering apparatus absorbs heat and specifically also comprises: the energy recovery pond 2 of the heat sink in described heat-energy recovering apparatus in also receives the described heat absorbed around water jacket; Described energy recovery pond 2 absorbs the heat that the pressurized gas in described the first gas piping 17 carry, and wherein, described the first gas piping 17 is internally through described energy recovery pond.
Described heat-energy recovering apparatus release heat specifically comprises: described energy recovery pond 2 is at working stage by the pressurized gas in thermal release to the second gas piping 18, and wherein, described the second gas piping 18 is internally through described energy recovery pond 2.
Be provided with heat-absorbing medium in described heat sink, described heat-absorbing medium is liquid.Preferably, heat-absorbing medium is water.
Described heat-energy recovering apparatus storing heat specifically comprises: the heat that the described heat sink of the memory device stores in described heat-energy recovering apparatus absorbs.Described heat-energy recovering apparatus release heat specifically also comprises: described storage device at working stage by stored thermal release to the energy recovery pond.
Be provided with energy-accumulating medium in described storage device, described energy-accumulating medium is a kind of in liquid or solid, and preferred, energy-accumulating medium is carbonite.
Adopt heat-energy recovering apparatus to absorb and storing heat, can fall low-energy loss, in working stage heat-energy recovering apparatus release heat, can increase the interior energy of gas, thereby improve the energy transformation ratio of whole system.
Described energy storage method also comprises: the pressure of the liquid that controller 14 is discharged according to pressure and the described clutch release slave cylinder 101 of the pressurized gas in described clutch release slave cylinder 101, regulate the running parameter of described oil hydraulic motor 6, so that described oil hydraulic motor 6 drives described generator 7 to preset power stage.
Described air compressor 1 is reciprocating compressor.
Described oil hydraulic motor 6 is connected with described generator 7 by coupling.Described oil hydraulic motor 6 is the compensator pressure motor.Described generator 7 is variable-frequency motor.
Adopt controller 14 to control the running parameter of oil hydraulic motor 6, oil hydraulic motor 6 is selected the compensator pressure motor simultaneously, and generator 7 is selected frequency conversion generator, can make generator with comparatively stable default power stage.
Disclose a kind of energy storage device and energy storage method in embodiments of the invention, described energy storage device comprises: air compressor for generation of pressurized gas, and is delivered to high pressure tank by pressurized gas by the first gas piping; High pressure tank, for receive and store described pressurized gas from air compressor, and be delivered to clutch release slave cylinder by the second gas piping by described pressurized gas; Clutch release slave cylinder, for working liquid body being delivered to the entrance of oil hydraulic motor under the effect of pressurized gas, rotate to drive described oil hydraulic motor, and clutch release slave cylinder is also for reclaiming the working liquid body flowed out from the outlet of oil hydraulic motor; Oil hydraulic motor, be connected with generator, for driving generator; Generator, for generating electricity under the driving of oil hydraulic motor.The disclosed energy storage device volume of the embodiment of the present invention is little, little to the dependence of geographical conditions, so applicability is strong, uses flexibly, and cost is lower.In addition, the disclosed energy storage device of the embodiment of the present invention and energy storage method can be electric energy, comparatively environmental protection by the Conversion of Energy of storage without combustion gas.
Those skilled in the art can be well understood to the mode that technology in the embodiment of the present invention can add essential common hardware by software and realize, common hardware comprises universal integrated circuit, universal cpu, general-purpose storage, universal elements etc., can certainly comprise that specific integrated circuit, dedicated cpu, private memory, special-purpose components and parts etc. realize by specialized hardware, but in a lot of situation, the former is better mode of execution.Understanding based on such, the part that technological scheme in the embodiment of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product can be stored in storage medium, as ROM (read-only memory) (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc, CD etc., comprise that some instructions are with so that a computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out each embodiment of the present invention or embodiment's the described method of some part.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and between each embodiment, identical similar part is mutually referring to getting final product, and each embodiment stresses is the difference with other embodiments.Especially, for system embodiment, due to it, substantially similar in appearance to embodiment of the method, so description is fairly simple, relevant part gets final product referring to the part explanation of embodiment of the method.
Above-described embodiment of the present invention, do not form limiting the scope of the present invention.Any modification of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (30)
1. an energy storage device, is characterized in that, described energy storage device comprises:
Air compressor, for generation of pressurized gas, and be delivered to described high pressure tank by described pressurized gas by the first gas piping;
High pressure tank, for from described air compressor, receiving and store described pressurized gas, and be delivered to described clutch release slave cylinder by the second gas piping by described pressurized gas;
Clutch release slave cylinder, for working liquid body being delivered to the entrance of oil hydraulic motor under the effect of described pressurized gas, rotate to drive described oil hydraulic motor, and described clutch release slave cylinder is also for reclaiming the working liquid body flowed out from the outlet of described oil hydraulic motor;
Oil hydraulic motor, be connected with generator, for driving described generator;
Generator, for generating electricity under the driving of described oil hydraulic motor.
2. energy storage device as claimed in claim 1, it is characterized in that, described clutch release slave cylinder comprises the first clutch release slave cylinder and the second clutch release slave cylinder, described the first clutch release slave cylinder is connected with the entrance of described oil hydraulic motor by the first liquid pipeline, and described the first clutch release slave cylinder also is connected with the outlet of described oil hydraulic motor by the second liquid pipeline;
Described the second clutch release slave cylinder is connected with the entrance of described oil hydraulic motor by the first liquid pipeline, and described the second clutch release slave cylinder also is connected with the outlet of described oil hydraulic motor by the second liquid pipeline;
At initial shift, described the first clutch release slave cylinder for passing through described working liquid body the entrance of described first liquid Pipeline transport to described oil hydraulic motor under the effect of described pressurized gas, to drive described oil hydraulic motor to rotate, described the second clutch release slave cylinder is for reclaiming described working liquid body by the second liquid pipeline from the outlet of described oil hydraulic motor;
At the second working stage, described the second clutch release slave cylinder for passing through described working liquid body the entrance of described first liquid Pipeline transport to described oil hydraulic motor under the effect of described pressurized gas, to drive described oil hydraulic motor to rotate, described the first clutch release slave cylinder is for reclaiming described working liquid body by the second liquid pipeline from the outlet of described oil hydraulic motor.
3. energy storage device as claimed in claim 2, it is characterized in that, described energy storage device also comprises heat-energy recovering apparatus, for absorbing and storing heat, the heat of described absorption is that described air compressor produces the heat produced in described pressurized gas process, comprises the heat of described air compressor body and the heat that described pressurized gas carry; Described heat-energy recovering apparatus is also for discharging the heat of storage at working stage.
4. energy storage device as claimed in claim 3, it is characterized in that, described heat-energy recovering apparatus comprises heat sink, and described heat sink comprises around water jacket, the described surface that is surrounded on described air compressor around water jacket, for absorbing the heat of described air compressor body.
5. energy storage device as claimed in claim 4, it is characterized in that, described heat sink also comprises the energy recovery pond, described energy recovery pond is connected around water jacket with described with the 4th liquid line by the 3rd liquid line, for receiving the described heat absorbed around water jacket, the heat that also carry for the pressurized gas that absorb described the first gas piping in described energy recovery pond, described energy recovery pond also at described working stage by the thermal release of described storage to the pressurized gas of described the second gas piping; Wherein, described the first gas piping and the second gas piping are internally through described energy recovery pond.
6. energy storage device as claimed in claim 5, is characterized in that, in described heat sink, is provided with heat-absorbing medium, and described heat-absorbing medium is liquid.
7. energy storage device as claimed in claim 5, is characterized in that, described heat-absorbing medium is water.
8. energy storage device as claimed in claim 5, it is characterized in that, described heat-energy recovering apparatus also comprises storage device, described storage device is from the described energy recovery of outer wrap pond, for storing the heat that described heat sink absorbs, described storage device also at described working stage by the thermal release of described storage to described energy recovery pond.
9. energy storage device as claimed in claim 8, is characterized in that, in described storage device, is provided with energy-accumulating medium, and described energy-accumulating medium is a kind of in liquid or solid.
10. energy storage device as claimed in claim 8, is characterized in that, described energy-accumulating medium is carbonite.
11. energy storage device as claimed in claim 1, it is characterized in that, described energy storage device also comprises controller, pressure for the liquid of discharging according to the pressure of the pressurized gas in described clutch release slave cylinder and described clutch release slave cylinder, regulate the running parameter of described oil hydraulic motor, so that the described generator of described fluid motor-driven is to preset power stage.
12. energy storage device as claimed in claim 1, is characterized in that, described air compressor is reciprocating compressor.
13. energy storage device as claimed in claim 1, is characterized in that, described oil hydraulic motor is connected with described generator by coupling.
14. energy storage device as claimed in claim 1, is characterized in that, described oil hydraulic motor is the compensator pressure motor.
15. energy storage device as claimed in claim 1, is characterized in that, described generator is the frequency conversion motor.
16. an energy storage method, is characterized in that, described method comprises:
Air compressor produces pressurized gas, and described pressurized gas are delivered to high pressure tank by the first gas piping;
Described high pressure tank receives and stores described pressurized gas from described air compressor, and by the second gas piping, described pressurized gas is delivered to clutch release slave cylinder;
Described clutch release slave cylinder is delivered to working liquid body the entrance of oil hydraulic motor under the effect of described pressurized gas, drives described oil hydraulic motor to rotate, and reclaims described working liquid body from the outlet of described oil hydraulic motor;
Described hydraulic motor-driving generator;
Described generator generates electricity under the driving of described oil hydraulic motor.
17. energy storage method as claimed in claim 16, it is characterized in that, described clutch release slave cylinder is delivered to working liquid body the entrance of oil hydraulic motor under the effect of described pressurized gas, drives described oil hydraulic motor to rotate, and reclaims described working liquid body from the outlet of described oil hydraulic motor and specifically comprise:
At initial shift, the first clutch release slave cylinder passes through described working liquid body the entrance of first liquid Pipeline transport to described oil hydraulic motor under the effect of described pressurized gas, to drive described oil hydraulic motor to rotate, the second clutch release slave cylinder reclaims described working liquid body by the second liquid pipeline from the outlet of described oil hydraulic motor;
At the second working stage, described the second clutch release slave cylinder passes through described working liquid body the entrance of described first liquid Pipeline transport to described oil hydraulic motor under the effect of described pressurized gas, to drive described oil hydraulic motor to rotate, described the first clutch release slave cylinder reclaims described working liquid body by the second liquid pipeline from the outlet of described oil hydraulic motor.
18. energy storage method as claimed in claim 17, is characterized in that, described method also comprises:
Heat-energy recovering apparatus absorbs and storing heat, and the heat of described absorption is that described air compressor produces the heat produced in described pressurized gas process, comprises the heat of air compressor body and the heat that described pressurized gas carry;
At described working stage, described heat-energy recovering apparatus release heat.
19. energy storage method as claimed in claim 18, is characterized in that, described heat-energy recovering apparatus absorbs heat and specifically comprises:
Absorb the heat of described air compressor body around water jacket in heat sink in described heat-energy recovering apparatus, wherein, the described surface that is surrounded on described air compressor around water jacket.
20. energy storage method as claimed in claim 19, is characterized in that, described heat-energy recovering apparatus absorbs heat and specifically also comprises:
Energy recovery pond in heat sink in described heat-energy recovering apparatus receives the described heat absorbed around water jacket;
Described energy recovery pond absorbs the heat that the pressurized gas in described the first gas piping carry, and wherein, described the first gas piping is internally through described energy recovery pond;
Described heat-energy recovering apparatus release heat specifically comprises:
Described energy recovery pond is by the pressurized gas in thermal release to the second gas piping, and wherein, described the second gas piping is internally through described energy recovery pond.
21. energy storage method as claimed in claim 20, is characterized in that, in described heat sink, is provided with heat-absorbing medium, described heat-absorbing medium is liquid.
22. energy storage method as claimed in claim 20, is characterized in that, described heat-absorbing medium is water.
23. energy storage method as claimed in claim 20, is characterized in that, described heat-energy recovering apparatus storing heat specifically comprises: the heat that the described heat sink of the memory device stores in described heat-energy recovering apparatus absorbs;
Described heat-energy recovering apparatus release heat specifically also comprises: described storage device by stored thermal release to the energy recovery pond.
24. energy storage method as claimed in claim 23, is characterized in that, in described storage device, is provided with energy-accumulating medium, described energy-accumulating medium is a kind of in liquid or solid.
25. energy storage method as claimed in claim 23, is characterized in that, described energy-accumulating medium is carbonite.
26. energy storage method as claimed in claim 16, is characterized in that, described energy storage method also comprises:
The pressure of the liquid that controller is discharged according to the pressure of the pressurized gas in described clutch release slave cylinder and described clutch release slave cylinder, regulate the running parameter of described oil hydraulic motor, so that the described generator of described fluid motor-driven is to preset power stage.
27. energy storage method as claimed in claim 16, is characterized in that, described air compressor is reciprocating compressor.
28. energy storage method as claimed in claim 16, is characterized in that, described oil hydraulic motor is connected with described generator by coupling.
29. energy storage method as claimed in claim 16, is characterized in that, described oil hydraulic motor is the compensator pressure motor.
30. energy storage method as claimed in claim 16, is characterized in that, described generator is variable-frequency motor.
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