CN114679115A - Wind-solar energy hybrid energy storage system - Google Patents
Wind-solar energy hybrid energy storage system Download PDFInfo
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- CN114679115A CN114679115A CN202111626924.9A CN202111626924A CN114679115A CN 114679115 A CN114679115 A CN 114679115A CN 202111626924 A CN202111626924 A CN 202111626924A CN 114679115 A CN114679115 A CN 114679115A
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
- H02S10/20—Systems characterised by their energy storage means
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J15/00—Systems for storing electric energy
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/38—Energy storage means, e.g. batteries, structurally associated with PV modules
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/40—Thermal components
- H02S40/42—Cooling means
- H02S40/425—Cooling means using a gaseous or a liquid coolant, e.g. air flow ventilation, water circulation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/40—Thermal components
- H02S40/44—Means to utilise heat energy, e.g. hybrid systems producing warm water and electricity at the same time
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/60—Thermal-PV hybrids
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Abstract
The invention discloses a wind-solar energy hybrid energy storage system, which comprises: the energy storage device and the power distribution cabinet are arranged in the box body, a box cover is arranged at the top end of the box body, a telescopic device is arranged at the top end of the box body, the output end of the telescopic device is connected with the box cover, a round hole is formed in the box body, a guide rod is arranged on the box cover and is inserted into the round hole, the guide rod can move in the round hole, a first heat insulation layer is arranged on the box cover, and when the box cover is covered on the upper side of the box body, the first heat insulation layer is filled in the space of the box body. Through setting up the insulating layer, make the box be in relative inclosed space environment, reduced energy storage system and external energy exchange, make energy storage system be in certain temperature range, guarantee that energy memory can normal operating, practiced thrift the electric energy.
Description
Technical Field
The invention belongs to the technical field of energy storage systems, and particularly relates to a wind and light energy hybrid energy storage system.
Background
Wind power generation and light power generation have the characteristics of sustainability and no pollution, and wind energy and solar energy are used as new energy sources, so that the dependence on traditional energy sources can be effectively reduced, and the method has important significance on sustainable development. Wind power plants and solar power plants are often built in areas where there is little human smoke to reduce the impact of the power plants on the human living environment. The energy storage system is one of the power devices, and has important functions of storing and supplying electric energy, and for convenience of storing electric energy, the energy storage device is usually built near the power generation device, so as to reduce electric energy loss in the power generation process and improve the electric energy utilization rate. The operation of the energy storage equipment has great relation with the external environment, the working efficiency of the energy storage equipment is higher within a certain temperature range, and the operation of the energy storage equipment is not facilitated at high temperature and low temperature. At present, the research to energy storage equipment is mostly concentrated on energy storage equipment's radiating process, however, in the abominable area of environment, especially in chilly winter, ambient temperature is lower, its low temperature environment has influenced energy storage system's use greatly, establish the characteristics in the place that people smoke sparsely based on energy storage system, in order to make energy storage system be in normal temperature range, need use corresponding electric energy equipment to heat the heating, electric energy equipment has consumed a large amount of electric energy in the use, energy storage system's power supply volume has further been reduced. If the heat loss of the energy storage equipment in the operation process is reduced, the constant temperature of the energy storage equipment is kept by utilizing the characteristic of heat generation in the operation of the energy storage system, and the temperature problem of the environment where the energy storage system is located can be effectively solved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the wind-solar energy hybrid energy storage system, the box body is in a relatively closed space environment by arranging the heat insulation layer, the energy exchange between the energy storage system and the outside is reduced, the energy storage system is in a certain temperature range, the normal operation of the energy storage device is ensured, and the electric energy is saved.
The invention provides the following technical scheme:
a hybrid wind-solar energy storage system comprising: the energy storage device and the power distribution cabinet are arranged in the box body, a box cover is arranged at the top end of the box body, a telescopic device is arranged at the top end of the box body, the output end of the telescopic device is connected with the box cover, a round hole is formed in the box body, a guide rod is arranged on the box cover and is inserted into the round hole, the guide rod can move in the round hole, a first heat insulation layer is arranged on the box cover, and when the box cover is covered on the upper side of the box body, the first heat insulation layer is filled in the space of the box body.
Preferably, a square hole is formed in a side plate of the box body, a balance hole is formed in the upper side of the energy storage device and communicated with the square hole, an air inlet device and an exhaust device are arranged at the bottom of the box body, and the air inlet device and the exhaust device are communicated with the square hole.
Preferably, the bottom of box is provided with electronic heating member, when electronic heating member heated the inboard of box, all leave the clearance between first insulating layer and the energy memory, between first insulating layer and the switch board.
Preferably, a driving piece is arranged in the first heat insulation layer, the driving piece is connected with a driving motor, the driving motor is arranged on the inner side of the first heat insulation layer, second heat insulation layers are arranged at two ends of the driving piece, and when the box cover covers the upper side of the box body, the second heat insulation layers are opposite to the energy storage device or the power distribution cabinet.
Preferably, the driving part comprises a bidirectional threaded rod, threaded blocks are arranged on two sides of the bidirectional threaded rod, a worm wheel is arranged on the bidirectional threaded rod, an output shaft of the driving motor is connected with a worm, and the worm is meshed with the worm wheel.
Preferably, the thread block is of a cuboid structure, the thread block is connected with a second heat insulation layer, and air holes are formed in the surface of the second heat insulation layer.
Preferably, the box body is provided with a fire-fighting spray pipe, the fire-fighting spray pipe is communicated with the inner side of the box body, and the fire-fighting spray pipe is connected with a fire extinguisher.
Preferably, the bottom of the round hole is provided with an air hole, the air hole is communicated with the outside air, and the air hole is used for balancing the air pressure in the round hole.
Preferably, the bottom of the inner side of the box body is provided with an air bag, the upper side of the air bag is provided with heat insulation blocks, gaps are formed between the adjacent heat insulation blocks, the air bag is connected with an air inlet nozzle, the air inlet nozzle is located on the outer side of the box body, and the gaps between the adjacent heat insulation blocks are filled with elastic blocks.
Preferably, the exhaust device comprises an exhaust pipe, the exhaust pipe is communicated with the square hole, a three-way pipe is arranged on the exhaust pipe, one interface of the three-way pipe is connected with a valve, and the other interface of the three-way pipe is connected with a one-way exhaust device.
Preferably, the one-way exhaust device comprises a shell, a groove is formed in the shell, a blocking piece is arranged in the groove and is connected with the inner wall of the groove through a rotating shaft, a spring is arranged at the bottom of the groove, one end of the spring is in contact with the blocking piece, and the other end of the spring is connected with the inner wall of the groove.
Preferably, the box cover is provided with a third heat insulation layer, when the box cover covers the upper side of the box body, the third heat insulation layer is located on the upper side of the corresponding energy storage device or the corresponding power distribution cabinet, gaps are formed between the third heat insulation layer and the energy storage device and between the third heat insulation layer and the power distribution cabinet, and the balance holes are located in the gaps.
Preferably, the bottom of box is provided with the terminal, the terminal is connected with electric heating element, electric heating element is electric heating wire or electric heating oil spit of fland.
Preferably, a temperature sensor is arranged in the box body and used for monitoring the temperature in the box body, the temperature sensor is connected with a controller, and the controller is connected with an alarm.
Preferably, the telescopic device is an electric telescopic rod or a hydraulic cylinder.
Preferably, the box upside is provided with first sealing washer, the lower surface of case lid is provided with the second sealing washer, closes when the box upside when the case lid, first sealing washer and second sealing washer contact.
Preferably, a plurality of ventilation openings are formed in the side plate of the box body, fans are arranged in the ventilation openings and used for ventilating the interior of the box body and cooling the interior of the box body.
Preferably, be provided with the cooling tube on the box, the cooling tube runs through the box, and when the case lid closed the box upside, the cooling tube was located the clearance department between first insulating layer and the energy memory or the clearance department between first insulating layer and the switch board.
Preferably, the material of the first heat insulation layer and the second heat insulation layer is one or more of foam material, fiber material, foam plastic, superfine glass wool, high silicon-oxygen wool and vacuum heat insulation board.
Preferably, a third heat insulation layer is arranged on the outer side surface of the box body and used for preventing heat in the box body from leaking, so that the temperature in the box body is kept within a certain temperature range.
Preferably, in order to increase the tightness of the device, in the using process, the heat in the box body is prevented from leaking, the heat leakage point of the box body needs to be detected, infrared imaging is adopted for detection in the detection process, an infrared thermal imager is arranged on the outer side of the box body, the infrared thermal imager comprises an optical system, an infrared detector, a scanning mechanism, a signal processor and a display recording system, radiation signals are projected onto the infrared detector through the optical system, the infrared detector converts the radiation signals into images or video electric signals, the images or the video electric signals are amplified and filtered to be denoised, and the images are sent to a display terminal through an electric signal processing circuit, so that the temperature distribution on the surface of the box body is displayed to form thermal images, and in order to improve the definition of thermal imaging edges, the thermal images need to be subjected to wavelet denoising and ultra-wavelet denoising.
Preferably, the thermal imaging is divided into a plurality of parts, image segmentation is carried out in the horizontal and vertical directions, the scanning system sequentially scans and integrates the thermal imaging to obtain images, the image segmentation is to segment the target area from the background, analysis is conveniently carried out on the temperature abnormal area, and the reason of temperature abnormality is found out, namely the reason of the case surface temperature abnormality is caused by case rupture leakage or abnormal work of the energy storage device and the power distribution cabinet.
Preferably, the image segmentation adopts an edge segmentation method, the distribution of the gray value information of the target in the scanning space is formed in the thermal image, different distributions of the pixel gray value are the characteristic expression of the multiple information, wherein the obvious boundary type difference is formed by discontinuous changes of the gray value, and the boundary is the edge. The change rate of the edge gray value determines the amplitude value of the gradient vector, the change direction of the gray value is the direction of the gradient vector, so that edge detection is realized by convolution of a differential operator in a space, wherein the size of a first derivative represents edge selection change information, and after a positive direction is specified, a derivative symbol represents direction information. Meanwhile, the edge position can be determined by applying the function characteristics of zero points, poles and the like of the multiple-order derivative.
Preferentially, image feature positioning is carried out on a segmented target image, feature points are selected to serve as the feature points for research and analysis, the feature points are firstly required to be accurately positioned, the position information of the feature points in the image is found, the Taylor series is applied through H-dimensional quadratic function fitting, corresponding poles are found, the feature points can be found, and a space function is formed:
d (x, y, sigma) at local extreme point (x)0，y0，σ0) The order of the places is expanded into:
and (3) enabling the formula to be equal to 0, solving to obtain an extreme value, wherein the position of the obtained extreme value is as follows:
In order to improve the heat preservation effect of the energy storage system, the invention also discloses a heat preservation method of the energy storage system, which comprises the following steps:
s1: the box cover is covered on the upper side of the box body, and the first heat insulation layer is positioned on the inner side of the box body, so that the energy exchange between the inner side of the box body and the outside is reduced;
s2: the air bag is inflated to enable the heat insulation blocks to be in contact with the corresponding first heat insulation layers, so that air flow in the box body is reduced, heat exchange frequency is reduced, and energy loss is avoided;
s3: the energy storage device generates heat in the operation process, the energy storage system is kept at a constant temperature, the temperature in the box body is monitored through the temperature sensor, and whether the temperature in the box body is in a reasonable range or not is judged;
a: when the temperature in the box body is overhigh, the gas in the box body expands, the air pressure is increased, and the gas in the box body is exhausted through the balance hole and the exhaust device, so that the pressure in the box body is in a constant range;
b: when the temperature in the box body is too low, the air inlet in the box body is heated through the electric heating element, and the temperature in the box body is adjusted to enable the pressure in the box body to be in a constant range;
s4: when the external environment temperature is higher, the box cover is lifted, the first heat insulation layer is separated from the corresponding energy storage device and the corresponding power distribution cabinet, the mobility of air is improved, and heat dissipation is performed on the energy storage device and the power distribution cabinet.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the wind-solar energy hybrid energy storage system, the energy storage device and the power distribution cabinet in the box body are located in independent use spaces through the first heat insulation layer and the second heat insulation layer, energy exchange among the energy storage device, the power distribution cabinet and the outside is reduced, heat loss is reduced, and continuous heating is achieved by means of heat generated during working of the wind-solar energy hybrid energy storage system.
(2) According to the wind-solar energy hybrid energy storage system, the electric heating element is arranged, when the environment temperature of the energy storage device and the power distribution cabinet is low and the self heat production of the energy storage device and the power distribution cabinet cannot meet the use requirement, the electric heating element serves as a standby heat supply element to supply heat to the box body, so that the temperature in the box body is in a certain range, and the energy storage device and the power distribution cabinet can be normally used.
(3) According to the wind-solar energy hybrid energy storage system, the balance hole is formed, so that when the temperature in the box body rises from low, the air pressure in the box body rises, and when the air pressure reaches a preset threshold value, the air pressure is exhausted out of the box body through the one-way exhaust device, the box body is always in a safe pressure range, and the normal working environment of the box body is guaranteed.
(4) According to the wind-solar energy hybrid energy storage system, the fire-fighting spray pipe is arranged and connected with the fire extinguisher, and when a dangerous case occurs in the box body, the fire-fighting spray pipe is used for carrying out fire-fighting treatment on the inner side of the box body, so that dangerous factors are eliminated in time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a structural view of a first insulating layer of the present invention.
Fig. 3 is a top view of the housing of the present invention.
Fig. 4 is a structural view of the one-way exhaust apparatus of the present invention.
Figure 5 is a schematic view of the drive member of the present invention.
FIG. 6 is a sectional view of a second case according to an embodiment of the present invention.
FIG. 7 is a top view of a second housing according to an embodiment of the present invention.
In the figure: 1. a box body; 2. a circular hole; 3. a telescoping device; 4. a square hole; 5. an air intake device; 6. a one-way exhaust device; 7. an exhaust device; 8. an energy storage device; 9. a power distribution cabinet; 10. a first insulating layer; 11. a second thermal insulation layer; 12. a drive member; 13. a drive motor; 14. a box cover; 15. a third thermal insulation layer; 16. a balance hole; 17. a binding post; 18. a guide bar; 19. a fire fighting lance; 20. an air bag; 21. a heat insulation block; 22. an air inlet nozzle; 23. an electric heating member; 601. a housing; 602. a spring; 603. a groove; 604. A baffle plate; 605. a rotating shaft; 1201. a thread block; 1202. a bidirectional threaded rod; 1203. A worm gear; 1204. a worm.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It is to be understood that the described embodiments are only a few, but not all embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example one
As shown in fig. 1 to 5, a wind-solar hybrid energy storage system includes: the energy storage device 8 and the switch board 9 of setting in box 1, the top of box 1 is provided with case lid 14, the top of box 1 is provided with telescoping device 3, telescoping device 3 is electric telescopic handle or pneumatic cylinder, the output and the case lid 14 of telescoping device 3 are connected, be provided with round hole 2 on the box 1, be provided with guide arm 18 on the case lid 14, guide arm 18 is pegged graft in round hole 2, guide arm 18 can remove in round hole 2, the bottom of round hole 2 is provided with the bleeder vent, bleeder vent and outside air intercommunication, the bleeder vent is used for adjusting the atmospheric pressure in round hole 2 for guide arm 18 more easily removes. The box cover 14 is provided with a first heat insulation layer 10, when the box cover 14 covers the upper side of the box body 1, the first heat insulation layer 10 is filled in the space of the box body 1, the first heat insulation layer 10 isolates the energy storage device 8 and the power distribution cabinet 9, so that the energy storage device 8 and the power distribution cabinet 9 are respectively located in relatively independent spaces, energy exchange between the energy storage device 8 or the power distribution cabinet 9 and the outside is reduced, a good heat insulation effect is achieved, the upper side of the box body 1 is provided with a first sealing ring, the lower surface of the box cover 14 is provided with a second sealing ring, when the box cover covers the upper side of the box body, the first sealing ring is in contact with the second sealing ring, and the sealing performance of the box body 1 is improved by arranging the first sealing ring and the second sealing ring.
The box cover 14 is provided with a third heat insulation layer 15, when the box cover 14 covers the upper side of the box body 1, the third heat insulation layer 15 is located on the upper side of the corresponding energy storage device 8 or power distribution cabinet 9, gaps are formed between the third heat insulation layer 15 and the energy storage device 8 and between the third heat insulation layer 15 and the power distribution cabinet 9, and the balance holes 16 are located at the gaps.
Be provided with quad slit 4 on the curb plate of box 1, quad slit 4 is located the inboard of curb plate, energy memory 8's upside is provided with balancing hole 16, balancing hole 16 and quad slit 4 intercommunication, the bottom of box 1 is provided with air inlet unit 5 and exhaust apparatus 7, air inlet unit 5 is the check valve, and the gas flow direction is from the box outside flow direction box inboard, air inlet unit 5, exhaust apparatus 7 all communicate with quad slit 4. The exhaust device 7 comprises an exhaust pipe, the exhaust pipe is communicated with the square hole 4, a tee pipe fitting is arranged on the exhaust pipe, one interface of the tee pipe fitting is connected with a valve, when the box cover 14 is covered on the box body 1, the valve is opened, gas in the box body 1 is exhausted out of the box body through the valve through a balance hole 16, and the other interface is connected with a one-way exhaust device 6. The unidirectional exhaust device 6 comprises a housing 601, a groove 603 is arranged in the housing 601, a baffle 604 is arranged in the groove 603, the baffle 604 is connected with the inner wall of the groove 603 through a rotating shaft 605, a spring 602 is arranged at the bottom of the groove 603, one end of the spring 602 is in contact with the baffle 604, the other end of the spring is connected with the inner wall of the groove 603, the rotating force of the baffle 604 is adjusted through the spring 602 with different elastic coefficients, when the acting force of gas in the box body acting on the baffle 604 is greater than the acting force of the spring, the baffle 604 rotates by a certain angle, the gas in the box body 1 is exhausted, and the purpose of controlling the gas pressure in the box body 1 is further realized. When the temperature in the box body 1 is increased from low, the air pressure in the box body 1 is increased, and when the air pressure is increased to a certain value, the air in the box body 1 is exhausted out of the box body 1 through the one-way exhaust device 6 through the balance hole 16. After the temperature in the box body 1 is reduced, the air pressure in the box body 1 is reduced, and the outside air of the box body 1 enters the inner side of the box body 1 through the air inlet device 5 and the balance hole 16, so that the effect of balancing the air pressure in the box body 1 is achieved.
The temperature sensor is arranged in the box body 1 and used for monitoring the temperature in the box body, the temperature sensor is connected with a controller, and the controller is connected with an alarm. When the temperature in the box body 1 is higher than the preset threshold value, the alarm gives an alarm, and the safety protection effect is achieved.
Be provided with cooling tube 24 on box 1, cooling tube 24 runs through box 1, the cooling tube is connected with the air-blower, and when the temperature in box 1 was higher, let in the air to air inlet unit 5 through cooling tube 24, open the valve simultaneously, make the air in box 1 be in the mobile state, with the interior air of box 1 through the valve discharge outside, reach the purpose of cooling.
The bottom of box 1 is provided with electric heating element 23, and when electric heating element 23 heated the inboard of box 1, all leave the clearance between first insulating layer 10 and the energy memory 8, between first insulating layer 10 and the switch board 9. The bottom of box 1 is provided with terminal 17, terminal 17 is connected with electronic heating member 23, electronic heating member 23 is electric heating wire or electric heating oil spit of fland, and ambient temperature when energy memory and switch board are located is lower, and when its self heat production did not reach operation requirement, electronic heating member 23 provides the heat as reserve heat supply component to the box, makes the temperature in the box be in certain within range, guarantees that energy memory and switch board can normal use.
Be provided with driving piece 12 in the first insulating layer 10, driving piece 12 is connected with driving motor 13, driving motor 13 sets up the inboard at first insulating layer 10, the both ends of driving piece 12 are provided with second insulating layer 11, and when case lid 14 lid closed at box 1 upside, second insulating layer 11 just is to energy memory 8 or switch board 9, second insulating layer 11 is located the clearance department between first insulating layer 10 and the corresponding energy memory and the clearance department between first insulating layer 10 and the corresponding counter cabinet for adjust the size in corresponding clearance. The driving piece 12 comprises a bidirectional threaded rod 1202, thread blocks 1201 are arranged on two sides of the bidirectional threaded rod 1202, a worm wheel 1203 is arranged on the bidirectional threaded rod 1202, an output shaft of the driving motor 13 is connected with a worm 1204, and the worm 1204 is meshed with the worm wheel 1203. The thread block 1201 is of a cuboid structure, the thread block 1201 is connected with a second heat insulation layer 11, and air holes are formed in the surface of the second heat insulation layer 11. The second heat insulation layer 11 can be tightly attached to the surfaces of the energy storage device 8 and the power distribution cabinet 9, so that the energy loss in the heat exchange process is reduced to the maximum extent.
The fire-fighting spray pipe 19 is arranged on the box body 1, the fire-fighting spray pipe 19 is communicated with the inner side of the box body 1, and the fire-fighting spray pipe 19 is connected with a fire extinguisher. When a dangerous case occurs in the box body, the fire extinguishing treatment is carried out on the inner side of the box body through the fire-fighting spray pipe 19, so that the dangerous factors are eliminated in time, and the safe operation environment in the box body is ensured. The materials of the first heat insulation layer 10 and the second heat insulation layer 11 are one or more of foam materials, fiber materials, foam plastics, superfine glass wool, high silicon-oxygen wool and vacuum heat insulation boards.
Example two
With reference to the first embodiment and fig. 6 and 7, an air bag 20 is disposed at the bottom of the inner side of the box body 1, a heat insulation block 21 is disposed on the upper side of the air bag 20, a gap is disposed between adjacent heat insulation blocks 21, the air bag 20 is connected to an air inlet nozzle 22, the air inlet nozzle 20 is located at the outer side of the box body 1, the air inlet nozzle 22 is connected to an inflator pump, and an elastic block is filled in the gap between adjacent heat insulation blocks 21. When the case lid closes at the box upside, utilize the pump to aerify gasbag 20, heat insulating block 21 rises, and heat insulating block and first insulating layer 10 contact have reduced the flow of air in the box 1, make energy memory 8 and switch board 9 in the box 1 form relatively inclosed space, have avoided heat loss effectively, have played good heat preservation effect to energy memory 8 and switch board 9.
A plurality of ventilation openings are formed in the side plate of the box body 1, fans are arranged in the ventilation openings and used for conducting ventilation treatment in the box body and cooling the box body. When the external temperature is better, when the box body 1 needs to be cooled, the box cover 14 is lifted, the first heat insulation layer is separated from the corresponding energy storage device and the corresponding power distribution cabinet, the fan is started, ventilation and heat dissipation are carried out on the box body 1, and further heat dissipation is carried out on the energy storage device and the power distribution cabinet.
EXAMPLE III
In order to improve the heat preservation effect of the energy storage system, the invention also discloses a heat preservation method of the energy storage system, which comprises the following steps:
s1: the box cover is covered on the upper side of the box body, and the first heat insulation layer is positioned on the inner side of the box body, so that the energy exchange between the inner side of the box body and the outside is reduced;
s2: the air bag is inflated to enable the heat insulation blocks to be in contact with the corresponding first heat insulation layers, so that air flow in the box body is reduced, heat exchange frequency is reduced, and energy loss is avoided;
s3: the energy storage device generates heat in the operation process, the energy storage system is kept at a constant temperature, the temperature in the box body is monitored through the temperature sensor, and whether the temperature in the box body is in a reasonable range or not is judged;
a: when the temperature in the box body is overhigh, the gas in the box body expands, the air pressure is increased, the gas in the box body is exhausted through the balance hole and the exhaust device, the pressure in the box body is in a constant range, and meanwhile, air is introduced into the box body to cool the box body;
b: when the temperature in the box body is too low, the air inlet in the box body is heated through the electric heating element, and the temperature in the box body is adjusted to enable the pressure in the box body to be in a constant range;
s4: when the external environment temperature is higher, the box cover is lifted, the first heat insulation layer is separated from the corresponding energy storage device and the corresponding power distribution cabinet, the mobility of air is improved, and heat dissipation is performed on the energy storage device and the power distribution cabinet.
Example four
The outer side surface of the box body is provided with a third heat insulation layer, and the third heat insulation layer is used for preventing heat in the box body from leaking and enabling the temperature in the box body to be kept within a certain temperature range.
In order to increase the tightness of the device, in the using process, the heat in the box body is prevented from leaking, the heat leakage point of the box body needs to be detected, infrared imaging is adopted for detection in the detection process, an infrared thermal imager is arranged on the outer side of the box body, the infrared thermal imager comprises an optical system, an infrared detector, a scanning mechanism, a signal processor and a display recording system, radiation signals are projected onto the infrared detector through the optical system, the infrared detector converts the radiation signals into images or video electric signals, the images or the video electric signals are amplified and filtered and subjected to denoising processing, and the images are sent to a display terminal through an electric signal processing circuit, so that the temperature distribution on the surface of the box body is displayed to form thermal imaging, and in order to improve the definition of the thermal imaging edge, the thermal imaging needs to be subjected to wavelet denoising and ultra-wavelet denoising.
Dividing thermal imaging into a plurality of parts, carrying out image segmentation according to the horizontal direction and the vertical direction, sequentially scanning and integrating the thermal imaging by a scanning system according to the sequence to obtain an image, wherein the image segmentation is to segment a target area from a background, so that analysis is conveniently carried out in a temperature abnormal area, and the reason of temperature abnormality is found out, namely the reason of the surface temperature abnormality of the box body is caused by the fact that the box body is cracked and leaked or the work of an energy storage device and a power distribution cabinet is abnormal.
The image segmentation adopts an edge segmentation method, the distribution of the gray value information of the scanning space target is formed by the thermal image, the different distribution of the pixel gray value is the characteristic expression of the multiple information, wherein the discontinuous change part of the gray value forms an obvious boundary-entering type difference, and the boundary is the edge. The change rate of the edge gray value determines the amplitude value of the gradient vector, the change direction of the gray value is the direction of the gradient vector, so that edge detection is realized by convolution of a differential operator in a space, wherein the size of a first derivative represents edge selection change information, and after a positive direction is specified, a derivative symbol represents direction information. Meanwhile, the edge position can be determined by applying the function characteristics of zero points, poles and the like of the multiple-order derivative.
The gradient can be represented by differential convolution, the Roberts operator can clearly describe edge information in edge detection, has positioning effect and good effect, and can be represented by the pixel difference of a diagonal line:
R(i，j)＝{[f(i，j)-f(i+1，j+1)]2+f(i，j+1)-f (i+1，j)2}1/2(ii) a The Roberts operator enables accurate positioning of edges.
Carrying out image feature positioning on a segmented target image, selecting feature points as feature points to carry out research analysis, firstly accurately positioning the feature points, finding out the position information of the feature points in the image, fitting through an H-dimensional quadratic function, applying a Taylor series, finding out corresponding poles, finding out the feature points, and carrying out a spatial function:
D (x, y, sigma) at local extreme point (x)0，y0，σ0) The order of the places is expanded into:
and (3) enabling the formula to be equal to 0, solving to obtain an extreme value, wherein the position of the obtained extreme value is as follows:
by means of the method, the temperature abnormal region points can be found quickly, leakage positions of the box body can be found and analyzed conveniently, leakage positions of the box body can be processed timely or potential safety hazards of the energy storage device and the power distribution cabinet can be eliminated timely, and stability of the device in use is improved.
The device that obtains through above-mentioned technical scheme is a scene energy hybrid energy storage system, through setting up the insulating layer, makes the box be in relative inclosed space environment, has reduced energy storage system and external energy exchange, preserves the heat that energy storage device and switch board produced in the course of the work, makes energy storage system and switch board be in certain temperature range, guarantees that energy storage device can normal operating, has practiced thrift the electric energy. Through setting up the balance hole, when the temperature in the box risees by low, atmospheric pressure in the box risees, when atmospheric pressure reaches the threshold value that sets up in advance, through one-way exhaust apparatus outside the discharge box, guarantee to be in the safe pressure within range all the time in the box, guaranteed the normal operational environment of box. The case lid can reciprocate, and the use is more convenient, and the temperature is on the low side throughout the year especially be applicable to winter chilly area.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A hybrid wind and solar energy storage system comprising: the energy storage device (8) and the power distribution cabinet (9) are arranged in the box body (1), and the energy storage device is characterized in that a box cover (14) is arranged on the top end of the box body (1), a telescopic device (3) is arranged on the top end of the box body (1), the output end of the telescopic device (3) is connected with the box cover (14), a round hole (2) is formed in the box body (1), a guide rod (18) is arranged on the box cover (14), the guide rod (18) is inserted into the round hole (2), the guide rod (18) can move in the round hole (2), a first heat insulation layer (10) is arranged on the box cover (14), and when the box cover (14) is covered on the upper side of the box body (1), the first heat insulation layer (10) is filled in the space position of the box body (1).
2. The wind and solar energy hybrid energy storage system according to claim 1, wherein a square hole (4) is formed in a side plate of the box body (1), a balance hole (16) is formed in the upper side of the energy storage device (8), the balance hole (16) is communicated with the square hole (4), an air inlet device (5) and an air outlet device (7) are arranged at the bottom of the box body (1), and the air inlet device (5) and the air outlet device (7) are both communicated with the square hole (4).
3. The wind-solar energy hybrid energy storage system according to claim 1, wherein an electric heating element (23) is arranged at the bottom of the box body (1), and when the electric heating element (23) heats the inner side of the box body (1), gaps are reserved between the first heat insulation layer (10) and the energy storage device (8) and between the first heat insulation layer (10) and the power distribution cabinet (9).
4. The wind-solar energy hybrid energy storage system according to claim 1, wherein a driving part (12) is arranged in the first heat insulation layer (10), the driving part (12) is connected with a driving motor (13), the driving motor (13) is arranged on the inner side of the first heat insulation layer (10), second heat insulation layers (11) are arranged at two ends of the driving part (12), and when a box cover (14) covers the upper side of the box body (1), the second heat insulation layers (11) are opposite to the energy storage device (8) or the power distribution cabinet (9).
5. The wind and solar energy hybrid energy storage system according to claim 4, characterized in that the driving member (12) comprises a bidirectional threaded rod (1203), thread blocks (1202) are arranged on two sides of the bidirectional threaded rod (1203), a worm wheel (1204) is arranged on the bidirectional threaded rod (1203), a worm (1205) is connected to an output shaft of the driving motor (13), and the worm (1205) is meshed with the worm wheel (1204).
6. The wind-solar energy hybrid energy storage system according to claim 5, wherein the thread block (1202) is of a rectangular parallelepiped structure, the thread block (1202) is connected with a second heat insulation layer (11), and air holes are formed in the surface of the second heat insulation layer (11).
7. The wind and solar energy hybrid energy storage system according to claim 1, wherein a fire-fighting nozzle (19) is arranged on the box body (1), the fire-fighting nozzle (19) is communicated with the inner side of the box body (1), and a fire extinguisher is connected to the fire-fighting nozzle (19).
8. The wind-solar hybrid energy storage system according to claim 1, wherein the bottom of the circular hole (2) is provided with a vent hole, and the vent hole is communicated with the outside air.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117118090A (en) * | 2023-10-25 | 2023-11-24 | 电力规划总院有限公司 | Separate bin type energy storage system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117118090A (en) * | 2023-10-25 | 2023-11-24 | 电力规划总院有限公司 | Separate bin type energy storage system |
| CN117118090B (en) * | 2023-10-25 | 2024-01-23 | 电力规划总院有限公司 | Separate bin type energy storage system |
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