CN220086211U - Electric power energy storage nest - Google Patents

Abstract

The utility model discloses an electric power energy storage nest, which comprises a standard prefabricated cabin (21), a plurality of battery frames (23) and a battery module (29), wherein a temperature control system is pre-configured in the standard prefabricated cabin (21), a multiple safety protection system (30) and a fire protection system (27) can be pre-configured, the battery frames (23) are distributed in the standard prefabricated cabin (21) at intervals, and at least one battery module (29) is arranged in each battery frame (23); the power energy storage nest can be installed in a battery frame by selecting a specific number of battery modules according to the requirement, has a short construction period, can be prefabricated in batches, can be flexibly and rapidly deployed according to the load capacity and the system standby time, and can effectively solve the problems of storage and convenient delivery of low-valley power and clean power.

Description

Electric power energy storage nest

Technical Field

The utility model relates to the technical field of energy, in particular to an electric power energy storage nest.

Background

In order to minimize carbon dioxide emissions, energy conservation and clean energy development have become a trend. Under the background, the storage of peak-valley electric energy and clean electric power become important application links for energy conservation and emission reduction, meanwhile, the construction period of the electric energy storage engineering is shorter and shorter, and the demand for prefabrication delivery is higher and higher, so that the problem of how to effectively realize the storage and convenient delivery of the valley electric power and the clean electric power is an urgent problem to be solved.

Disclosure of Invention

The utility model aims to solve the technical problems that the integrated, prefabricated and standardized electric power energy storage nest is provided for the electric power storage and convenient delivery in the prior art, and the problems of storage and convenient delivery of off-peak electric power and clean electric power can be effectively solved.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a structure electric power energy storage nest, includes standard prefabricated cabin, a plurality of battery frame and battery module, be configured with temperature control system in the standard prefabricated cabin in advance, a plurality of battery frame distributes in the standard prefabricated cabin, every battery frame is inside to be used for installing at least one battery module, be reserved on the standard prefabricated cabin temperature control system's refrigerant pipe interface and communication control interface and be used for battery module power supply's electric power interface, so can select battery module of specific quantity to install in the battery frame as required, whole energy storage nest realizes standardization, modularization and prefabrication, and construction cycle is short, can prefabricate production in batches, can arrange fast according to load capacity and system power preparation time is nimble, can effectively solve low-ebb electric power and clean electric power's storage and convenient delivery problem.

Further, in the electric power energy storage nest of the present utility model, the temperature control system includes a plurality of cooling coils corresponding to a plurality of the battery frames, a fan group is installed on a side of the battery module, each cooling coil is integrated on one side of an air inlet of the corresponding battery frame, the cooling coils are used for cooling hot air entering the battery frame, when the battery module is installed in the battery frame, the fan group faces one side of an air outlet of the battery frame so as to forcibly discharge the hot air of the battery module, and thus, the present utility model performs targeted refrigeration for each battery frame, and each battery frame realizes the effect of cooling the battery module by the cooperation of the cooling coils and the battery fans.

Further, in the electric power energy storage nest of the present utility model, each of the battery frames is further configured with a separation baffle plate, the separation baffle plate is used for being installed between the battery module and the battery frame after the battery module is installed to separate the interior of the battery frame into a closed cold channel and a closed hot channel, the separation baffle plate is located at a position close to the fan group and faces the air outlet, and by designing the closed cold channel and the closed hot channel, the heat exchange efficiency of the temperature control system can be improved;

wherein the battery frame, the air inlet, the battery module and the separation baffle form the cold channel; the battery frame, the air outlet, the fan set and the separation baffle plate form the heat channel.

Furthermore, in the electric power energy storage nest of the utility model, the standard prefabricated cabin is a rectangular container, the battery frames are divided into two rows facing each other, each row of battery frames is arranged at intervals along the length direction of the standard prefabricated cabin, the air inlet of each battery frame faces the side cabin body of the adjacent standard prefabricated cabin, the air outlet of each battery frame faces the opposite battery frame, the distance between two adjacent battery frames in the same row meets the air flow distance of the cooling system, and the design of the space layout and the distance can delay the influence of thermal runaway on the adjacent battery frames as far as possible.

Furthermore, in the electric power energy storage nest, a plurality of equipment maintenance protective doors are respectively arranged on two sides of the standard prefabricated cabin, which are parallel to the length direction and the height direction, so that the electric power energy storage nest can be quickly opened when faults occur and overhauling and maintenance occur, and the equipment maintenance and transportation cost is saved.

Furthermore, in the electric power energy storage nest of the utility model, the temperature control system further comprises a control box, a main cooling pipe and a plurality of branch cooling pipes corresponding to the cooling coils, each cooling coil is connected to the main cooling pipe through the corresponding branch cooling pipe, each branch cooling pipe is provided with a regulating valve, the regulating valve is connected to the control box through a control line, a refrigerant pipe interface for connecting the main cooling pipe and an outdoor cold source and a communication control interface for connecting the control box and the outdoor cold source are reserved outside the standard prefabricated cabin, and thus the control box can control the refrigeration intensity through controlling the regulating valve, and the safe and stable operation of each system in the energy storage nest is satisfied.

Furthermore, in the electric power energy storage nest, a plurality of safety protection systems are also preconfigured in the standard prefabricated cabin, a communication control interface for connecting the plurality of safety protection systems is reserved in the standard prefabricated cabin to the outside, the plurality of safety protection systems comprise a total battery management system and a monitoring safety protection system, the battery management system of the battery module is connected to the total battery management system through a communication cable, the total battery management system is used for monitoring the temperature, the current and the voltage in the battery module and feeding back the temperature to the temperature control system, so that the protection level can be further improved by adding the plurality of safety protection systems, and the temperature control system can be associated with the temperature control system to provide support for temperature adjustment of the temperature control system, so that safe and stable operation environments are provided for lithium battery systems of different manufacturers.

Furthermore, in the electric power energy storage nest, a fire protection system which is connected with the multiple safety protection systems and is independently powered is also arranged in the standard prefabricated cabin in advance, a communication control interface which is used for connecting the fire protection system with an outdoor fire control room is reserved in the standard prefabricated cabin, and the fire protection system comprises a fire automatic alarm system, a gas fire extinguishing system, a fire spraying system and a post-disaster exhaust system, so that the fire protection system can be added to intervene in advance and solve the possible fire hidden danger and the fire accident at the first time.

Further, in the electric power energy storage nest, a convergence cabinet, a fire-fighting electric power box and a power distribution box are also arranged in the standard prefabricated cabin, and external electric power interfaces of the convergence cabinet, the fire-fighting electric power box and the power distribution box are reserved;

the cable of conflux cabinet extends to each battery frame's position is in order to be used for the access battery module provides charging source for it, fire control power box is used for fire extinguishing systems power supply, power distribution box is used for the non-fire fighting equipment power supply in the prefabricated cabin of standard, so strong current, weak current, fire control power supply three independent supply, ensure power supply safety.

In the power energy storage nest, the number of the bus cabinets is two, the battery frames are divided into two rows which face each other, and each row of battery frames are connected in parallel and then connected into one bus cabinet.

The electric power energy storage nest has the following beneficial effects: according to the power energy storage nest, the temperature control system is pre-configured in the standard prefabricated cabin, the battery frames are distributed, a specific number of battery modules can be selected according to requirements and installed in the battery frames, the standardized, modularized and prefabricated energy storage nest is short in construction period, can be prefabricated in batches and produced, can be flexibly and rapidly deployed according to load capacity and system standby time, and can effectively solve the problems of storage and convenient delivery of low-valley power and clean power.

Drawings

For a clearer description of an embodiment of the utility model or of a technical solution in the prior art, the drawings that are needed in the description of the embodiment or of the prior art will be briefly described, it being obvious that the drawings in the description below are only embodiments of the utility model, and that other drawings can be obtained, without inventive effort, by a person skilled in the art from the drawings provided:

FIG. 1 is a schematic diagram of a power storage nest of the present utility model;

fig. 2 is a schematic structural view of a battery frame;

FIG. 3 is a schematic diagram of the operation of the temperature control system;

fig. 4 is a schematic diagram of the operation of the fire protection system.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Exemplary embodiments of the present utility model are illustrated in the accompanying drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It should be understood that the embodiments of the present utility model and the specific features in the embodiments are detailed descriptions of the technical solutions of the present utility model, and not limited to the technical solutions of the present utility model, and the embodiments of the present utility model and the technical features in the embodiments may be combined with each other without conflict.

Referring to fig. 1, the electric power energy storage nest of the present embodiment includes a standard prefabricated cabin 21, a plurality of battery frames 23 and a battery module 29, wherein a temperature control system, a multiple safety protection system 30 and a fire protection system 27 are pre-configured in the standard prefabricated cabin 21.

Wherein the standard prefabricated cabin 21 is a rectangular container. The standard prefabricated cabin 21 is provided with a door on one side parallel to the width direction and the height direction, i.e., on the right side in the drawing. Preferably, a plurality of equipment maintenance protection doors 22 are respectively opened on two sides (i.e. the front and rear side cabin bodies shown in the figure) of the standard prefabricated cabin 21 parallel to the length direction and the height direction, so that the equipment maintenance protection doors can be quickly opened when faults occur and overhauling and maintenance occur, and the equipment maintenance and transportation cost is saved.

Wherein a plurality of battery frames 23 are spaced apart from each other in the standard prefabricated compartment 21, and each battery frame 23 is internally provided with at least one battery module 29. Specifically, the plurality of battery frames 23 are equally divided into two front and rear rows facing each other. Each row of the battery frames 23 is arranged along the length direction of the standard prefabricated cabin 21, for example, 5 battery frames 23 are uniformly arranged at intervals in each row in the embodiment.

Referring to fig. 2, the battery frames are rectangular frames, the back of the battery frames is an air inlet 34, the front of the battery frames is an air outlet 35, the air inlet 34 of each battery frame 23 faces the adjacent side cabin of the standard prefabricated cabin 21, the air outlet 35 of each battery frame 23 faces the opposite battery frame 23, for example, the air inlet 34 of the front battery frame 23 faces the front side cabin in fig. 1, the air inlet 34 of the rear battery frame 23 faces the rear side cabin, and the air outlet 35 of the front battery frame 23 faces the air outlet 35 of the rear battery frame 23. The side of the battery module 29 is provided with a fan group 32, when the battery module 29 is installed, the battery module 29 is directly placed into the battery frame 23 from the air outlet 35, and a space exists between the battery module 29 and the battery frame 23 after the battery module 29 is placed into the battery frame 23.

Preferably, the distance between two battery frames 23 adjacent left and right in the same row satisfies the cooling system air flow pitch to delay the influence of thermal runaway on the adjacent battery frames 23. The cooling system airflow spacing is related to the battery capacity, with the greater the battery capacity, the greater the cooling system airflow spacing. In this embodiment, the battery module 29 is 280 ampere hours, and the air flow pitch of the cooling system is not less than 200mm.

The temperature control system may be a system for uniformly cooling the whole standard prefabricated cabin 21, but in this case, the cooling efficiency is low, so in this embodiment, the temperature control system performs targeted cooling for each battery frame 23, and each battery frame 23 cooperates with a cooling coil 28 and a battery fan 32 to cool the battery module 29, so as to forcibly discharge the hot battery air. Specifically, in one aspect, the temperature control system includes a plurality of cooling coils 28 corresponding to a plurality of the battery frames 23, each cooling coil 28 is integrated on one side of the air inlet 34 of the corresponding battery frame 23, and the cooling coils 28 are used for cooling hot air entering the battery frame 23; on the other hand, the battery module 29 is mounted in the battery frame 23 with its fan group 32 facing the air outlet 35 side of the battery frame 23 so as to forcibly discharge the hot air in the battery module 29. In this way, the hot air is cooled by the cooling coil 28 at the back of the battery frame 23, the hot air at the air inlet 34 is reduced to the temperature required by the battery module 29, the heat of the battery module 29 is taken away after passing through the battery module 29, the generated hot air is pumped out by the front fan set 32, the pumped hot air flows back to the back of the battery frame 23 again and is cooled by the cooling coil 28, and the cycle is repeated, so that heat exchange is realized.

In order to improve the heat exchange efficiency of the temperature control system, in this embodiment, a partition plate 33 is further disposed on each of the battery frames 23, the partition plate 33 is used to be installed between the battery module 29 and the battery frame 23 after the battery module 29 is assembled to partition the interior of the battery frame 23 into a cold channel sealed at the rear and a hot channel sealed at the front, and the partition plate 33 is located near the fan group 32 and faces the air outlet 35. The battery frame 23, the air inlet 34, the battery module 29 and the separation baffle 33 form the cold channel; the battery frame 23, the air outlet 35, the fan group 32, and the partition plate 33 constitute the heat passage. The cold channel ensures that the cold air sufficiently surrounds the battery module 29 for heat exchange.

Referring to fig. 3, the temperature control system further includes a control box 45, a main cooling pipe 41, and a plurality of branch cooling pipes 42 corresponding to the plurality of cooling coils 28. Each cooling coil 28 is connected to the main cooling tube 41 through a corresponding branch cooling tube 42, each branch cooling tube 42 is provided with a regulating valve 43, the regulating valves 43 are connected to the control box 45 through control lines 44, the control box 45 can control the cooling fluid flowing through or not of the cooling coils 28 through controlling the regulating valves 43, and can also control the flow rate of the cooling fluid, so that whether the cooling coils 28 on the battery frame 23 are started or not and the cooling temperature is regulated, for example, the lower the required cooling temperature is, the larger the opening amplitude of the regulating valves 43 is, and the larger the flow rate of the cooling fluid is. The standard prefabricated cabin 21 is externally reserved with a refrigerant pipe interface for connecting the main cooling pipe 41 and the outdoor cooling source 40 and a communication control interface for connecting the control box 45 and the outdoor cooling source 40.

It can be understood that the rule parameters such as the specific pipeline dimensions of the main cooling pipe 41 and the branch cooling pipe 42 can provide a plurality of different configuration schemes according to the requirements of customers, so as to satisfy the safe and stable operation of each system in the energy storage nest.

With continued reference to fig. 1, the standard prefabricated cabin 21 is further provided with two convergence cabinets 24, a fire-fighting power box 25 and a power distribution box 26, and external power interfaces of the convergence cabinets 24, the fire-fighting power box 25 and the power distribution box 26 are reserved. Each row of battery frames 23 is connected in parallel and then connected into one of the bus cabinets 24, cables of the bus cabinets 24 extend to each battery frame 23 in the same row to be connected into the battery module 29 to provide charging power for the battery module, the fire-fighting power box 25 is used for supplying power to the fire-fighting system 27, and the power distribution box 26 is used for supplying power to non-fire-fighting equipment in the standard prefabricated cabin 21. It will be appreciated that the power source of the other equipment is non-fire electricity except the power source of the fire protection system 27 and the charging power source of the battery module 29.

The multiple safety protection systems 30 may be integrated at one of the battery frames 23, and the standard prefabricated cabin 21 is reserved with a communication control interface for connecting the multiple safety protection systems 30. The multiple safety protection system 30 comprises a total battery management system and a monitoring safety protection system, wherein a monitoring picture of the monitoring safety protection system is transmitted to an outdoor control room through a communication control interface. The battery module 29 is connected to the overall battery management system through a communication cable from the battery management system to facilitate unified management. The overall battery management system may monitor the temperature, current and voltage inside the battery module 29. The overall battery management system may feed back the collected temperature to a temperature control system that adjusts the regulator valve 43 based on the temperature fed back by the overall battery management system. For example, if the temperature inside the battery module 29 is too high, the temperature can be fed back to the control box 45, and the control box 45 can increase the refrigerating force by controlling the regulating valve 43.

The fire protection system 27 is connected to the multiple safety protection systems 30 and supplies power independently, the standard prefabricated cabin 21 is externally reserved with a communication control interface for connecting the fire protection system 27 and an outdoor fire control room, and the fire protection system 27 comprises an automatic fire alarm system, a gas fire extinguishing system, a fire spraying system and a post-disaster exhaust system, which are mature technologies, and the embodiment aims to integrate the fire protection system into the standard prefabricated cabin 21 in advance. The gas fire extinguishing system is a fire extinguishing system which reduces the oxygen concentration in the space below the combustion limit through high-concentration fire extinguishing gas so as to achieve the aim of fire extinguishment. The fire-fighting spraying system is a fire-fighting system which utilizes the water spray or mist water mist of an automatic spray head to quickly extinguish the fire source formed when the combustible materials in the fire-fighting area are contacted with the combustion temperature. The post-disaster exhaust system is a fire-fighting equipment system which is arranged in the space and used for evacuating smoke and removing smoke and harmful gases. The fire automatic alarm system is a fire-fighting system integrating alarm, control and monitoring, and utilizes an inductor to sense fire smoke, temperature and other signals and then automatically send alarm signals. In the present embodiment, for the automatic fire alarm system, at least one fire detector may be provided in each of the battery frames 23.

Referring to fig. 4, in one possible embodiment, fire protection measures of different priorities may be initiated according to light and heavy urgency: when the temperature of a certain battery module 29 begins to rise rapidly to exceed the warning value, the multiple safety protection system 30 provides a control signal to the fire automatic alarm system of the fire protection system 27, and the fire automatic alarm system rapidly turns off the power switch of the certain battery module 29 to prevent thermal runaway; when the fire detector detects that the temperature of the battery module 29 in the battery frame 23 is in fire, or when the control signal of the outdoor fire control room is received through the monitoring security system when the fire is detected, the fire automatic alarm system can disconnect a non-fire-fighting power supply (namely, disconnect the power input of the bus cabinet 24 and the power distribution box 26) in the energy storage nest, and the gas fire extinguishing system is started to eliminate potential safety hazards; when serious fire in the energy storage nest cannot be solved through the gas fire extinguishing system, the fire-fighting spraying system in the energy storage nest is started, and after an accident is ended, the post-disaster exhaust system is started.

In summary, the present embodiment has the following advantages: the energy storage nest integrates a temperature control system, a multiple safety protection system 30 and a fire protection system 27 in advance, and provides safe and stable operation environments for lithium battery systems of different factories; the energy storage nest is highly prefabricated, and can be debugged and operated only by connecting various interfaces reserved outside the temperature control system, the multiple safety protection system 30 and the fire protection system 27 inside and outside the nest on the project site, so that the site installation is simple and the construction period is short; the energy storage nest can be rapidly deployed in a standardized and modularized mode, flexible capacity expansion is realized, and capacity requirements of different customers in different scenes are met.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "front", "back", "left", "right" and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are to be protected by the present utility model.

Claims (10)

1. The utility model provides an electric power energy storage nest, its characterized in that includes standard prefabricated cabin (21), a plurality of battery frame (23) and battery module (29), be configured with temperature control system in advance in standard prefabricated cabin (21), a plurality of battery frame (23) distribute in standard prefabricated cabin (21), battery frame (23) are used for installing battery module (29), be reserved on standard prefabricated cabin (21) temperature control system's communication control interface and be used for battery module (29) power supply's electric power interface.

2. The electric power storage nest according to claim 1, characterized in that the temperature control system comprises a plurality of cooling coils (28) corresponding to a plurality of the battery frames (23), the battery modules (29) are laterally provided with fan groups (32), and each cooling coil (28) is integrated on one side of an air inlet (34) of the corresponding battery frame (23); the cooling coil (28) is used for cooling hot air entering the battery frame (23), and when the battery module (29) is installed in the battery frame (23), the fan group (32) faces one side of an air outlet (35) of the battery frame (23) so as to forcedly discharge the hot air of the battery module (29).

3. The electric power storage nest according to claim 2, characterized in that each of the battery frames (23) is further provided with a partition baffle (33), the partition baffle (33) being adapted to be mounted between the battery module (29) and the battery frame (23) after the battery module (29) is mounted to partition the inside of the battery frame (23) into a closed cold channel and a hot channel, the partition baffle (33) being located close to the fan group (32) and facing the air outlet (35),

wherein the battery frame (23), the air inlet (34), the battery module (29) and the separation baffle (33) form the cold channel; the battery frame (23), the air outlet (35), the fan group (32) and the separation baffle (33) form the heat channel.

4. The electric power energy storage nest according to claim 2, wherein the standard prefabricated cabin (21) is a rectangular container, a plurality of battery frames (23) are divided into two rows facing each other, each row of the battery frames (23) is arranged at intervals along the length direction of the standard prefabricated cabin (21), an air inlet (34) of each battery frame (23) faces the side cabin body of the adjacent standard prefabricated cabin (21), an air outlet (35) of each battery frame (23) faces the opposite battery frame (23), and the distance between two adjacent battery frames (23) in the same row meets the air flow interval of a cooling system to delay the influence of thermal runaway on the adjacent battery frames (23).

5. The electric power storage nest according to claim 4, wherein a plurality of equipment maintenance protection doors (22) are respectively opened at both sides of the standard prefabricated cabin (21) parallel to the length direction and the height direction.

6. The electric power energy storage nest according to claim 2, characterized in that the temperature control system further comprises a control box (45), a main cooling pipe (41) and a plurality of branch cooling pipes (42) corresponding to the cooling coils (28), each cooling coil (28) is connected to the main cooling pipe (41) through the corresponding branch cooling pipe (42), an adjusting valve (43) is arranged on each branch cooling pipe (42), the adjusting valve (43) is connected to the control box (45) through a control line (44), and a refrigerant pipe interface for connecting the main cooling pipe (41) with an outdoor cold source (40) and a communication control interface for connecting the control box (45) with the outdoor cold source (40) are reserved outside the standard prefabricated cabin (21).

7. The electric power energy storage nest according to claim 1, wherein a plurality of safety protection systems (30) are further configured in the standard prefabricated cabin (21) in advance, communication control interfaces for connecting the safety protection systems (30) are reserved in the standard prefabricated cabin (21) to the outside, the safety protection systems (30) comprise a total battery management system and a monitoring safety protection system, the battery management system of the battery module (29) is connected to the total battery management system through a communication cable, and the total battery management system is used for monitoring the temperature, the current and the voltage inside the battery module (29) and feeding back the temperature to the temperature control system.

8. The electric power energy storage nest according to claim 7, characterized in that a fire protection system (27) which is connected with the multiple safety protection system (30) and is independently powered is also preconfigured in the standard prefabricated cabin (21), a communication control interface for connecting the fire protection system (27) and an outdoor fire control room is reserved outside the standard prefabricated cabin (21), and the fire protection system (27) comprises a fire automatic alarm system, a gas extinguishing system, a fire spraying system and a post-disaster exhaust system.

9. The electric power energy storage nest according to claim 8, characterized in that a confluence cabinet (24), a fire-fighting electric power box (25) and a power distribution box (26) are further arranged in the standard prefabricated cabin (21), and an external electric power interface of the confluence cabinet (24), the fire-fighting electric power box (25) and the power distribution box (26) is reserved;

the cables of the bus cabinet (24) extend to the positions of the battery frames (23) for being connected with the battery modules (29) to provide charging power for the battery frames, the fire-fighting power box (25) is used for supplying power for the fire-fighting system (27), and the power distribution box (26) is used for supplying power for non-fire-fighting equipment in the standard prefabricated cabin (21).

10. The electric power energy storage nest according to claim 9, wherein the number of the bus cabinets (24) is two, the battery frames (23) are divided into two rows facing each other, the battery frames (23) in each row are uniformly arranged at intervals, and each row of the battery frames (23) is connected in parallel and then connected into one of the bus cabinets (24).