Energy storage container

Abstract

The utility model relates to the technical field of battery energy storage fire safety, in particular to an energy storage container which comprises a container body, and a liquid cooling cabin, a battery cabin and an equipment cabin which are sequentially arranged along the length direction of the container body, a battery rack is arranged in the middle of the battery cabin, and a plurality of battery boxes and a high-voltage box are arranged in an array in each cabin in the battery rack; a liquid cooling unit is arranged in the liquid cooling cabin, and the liquid cooling unit is connected to a battery box in the battery cabin through a liquid cooling pipe fitting; and a fire-fighting cabinet is arranged in the equipment cabin and is connected to the battery box in the battery cabin and the battery cabin through a fire-fighting pipeline assembly. According to the utility model, the battery rack is arranged in the middle of the battery cabin, a plurality of battery boxes are arranged in the battery rack in an array manner, and a liquid cooling assembly and a fire-fighting assembly are installed, so that the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery energy storage fire safety, and in particular to an energy storage container. Background Art

[0002] Energy storage technology has become one of the key technologies for the development and construction of smart grids. It has the effect of improving the low-energy quality of the power grid and increasing the utilization rate of renewable energy. With the rapid development of a new generation of lithium battery materials and the further improvement of battery technology, lithium batteries have a wide range of applications in energy storage. Containerized battery energy storage systems have the advantages of mature technology, large capacity, mobility, high reliability, no pollution, low noise, strong adaptability, expandability, and easy installation. Therefore, containerized energy storage systems, as energy storage power sources for power systems, are the future development direction of energy storage.

[0003] At present, conventional energy storage containers are modified from ordinary end-opening containers, which are equipped with two rows of batteries and related switch cabinets, transformers, air conditioners and other equipment. The two rows of batteries are respectively arranged on both sides of the box, forming a channel in the middle, and other electronic equipment and air conditioners are arranged at the two ends of the box or the upper half of the box.

[0004] In this way, energy storage batteries, battery racks, liquid cooling, fire-fighting and other equipment are arranged in the limited space of the energy storage container, which limits the width and transportation requirements of the container, and requires the installation of two sets of liquid cooling and fire-fighting systems, resulting in congested lines, greatly increased installation space and difficulty, and exponentially increased construction costs. Utility Model Content

[0005] In view of the above technical problems, the utility model provides an energy storage container.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] An energy storage container comprises a box body, a liquid cooling cabin, a battery cabin and an equipment cabin arranged in sequence along the length direction of the box body, wherein the equipment cabin comprises a fire cabin; a battery rack is arranged in the middle of the battery cabin, and each cabin array in the battery rack is provided with a plurality of battery boxes and a high-voltage box, and the high-voltage box is electrically connected to the battery box; a liquid cooling unit is arranged in the liquid cooling cabin, and the liquid cooling unit is connected to the battery box in the battery cabin through a liquid cooling pipe fitting; a fire cabinet is arranged in the fire cabin, and the fire cabinet is connected to the battery box in the battery cabin and the top of the battery cabin through a fire pipeline assembly.

[0008] Furthermore, a liquid cooling unit is installed in the liquid cooling cabin, and the liquid cooling unit is connected to the battery box in the battery cabin through liquid cooling pipes; wherein the liquid cooling unit is provided with a liquid drain port and a liquid return port, and the liquid cooling pipes include a liquid cooling inlet pipe and a liquid cooling outlet pipe.

[0009] Furthermore, the liquid cooling outlet pipe includes a liquid cooling outlet main pipeline, a liquid cooling outlet first branch pipeline and a liquid cooling outlet second branch pipeline. The liquid cooling outlet first branch pipeline is connected with the liquid cooling outlet first branch pipeline and the liquid cooling outlet second branch pipeline in sequence, and the liquid cooling outlet second branch pipeline is connected with the battery box.

[0010] Furthermore, a plurality of battery boxes are arrayed in the battery compartment, and the battery box includes a box body, a battery cell module and a liquid cooling plate, and the battery cell module is located in the cavity of the box body; the liquid cooling plate is fixedly arranged in the box body, and the liquid cooling plate is provided with a battery box liquid inlet and a battery box liquid outlet, and the battery box liquid inlet and the battery box liquid outlet are both connected to the cooling flow channel in the liquid cooling plate; the battery box liquid outlet can be connected to the liquid return port of the liquid cooling unit through a liquid cooling liquid outlet pipe, and the battery box liquid inlet can be connected to the liquid discharge port of the liquid cooling unit through a liquid cooling liquid inlet pipe; the side wall of the box body has a fire outlet.

[0011] Furthermore, the battery box liquid inlet and the battery box liquid outlet are located on one side of the battery box, and the battery box fire outlet is located on the other side of the battery box.

[0012] Furthermore, a fire-fighting unit is arranged in the fire-fighting cabin, and the fire-fighting unit includes a fire-fighting cabinet; the fire-fighting pipe assembly includes a fire-fighting cluster-level main pipe, a cabin-level fire-fighting branch pipe and a first cluster-level fire-fighting branch pipe, and the cabin-level fire-fighting branch pipe and the first cluster-level fire-fighting branch pipe are respectively connected to the fire-fighting cluster-level main pipe, and the fire-fighting cluster-level main pipe is connected to the fire-fighting cabinet, and the cabin-level fire-fighting branch pipe is arranged in the middle position of the top of the battery cabin, and the first cluster-level fire-fighting branch pipe is arranged on both sides of the top of the battery cabin.

[0013] Furthermore, the first cluster-level fire-fighting branch is also connected to a second cluster-level fire-fighting branch, and a second nozzle is arranged on the second cluster-level fire-fighting branch, and the second nozzle corresponds to the battery box.

[0014] Furthermore, the depth of the battery rack is smaller than the width of the narrow side of the box body; the battery rack and the box body support are integrally welded.

[0015] Furthermore, the battery rack includes columns vertically fixed on the bottom of the box body, and multiple groups of load-bearing beams arranged on the columns along the direction in which the battery box is pushed in. The columns and load-bearing beams form at least one battery placement area, and the battery box is placed on the upper surface of the load-bearing beams. The height of the battery placement area is greater than the total height of the battery boxes.

[0016] Furthermore, the equipment compartment includes an electric control compartment, which is arranged in front and behind the fire compartment. The electric control compartment includes an electric control cabinet, which contains a controller, and the controller is electrically connected to the liquid cooling unit and the fire cabinet.

[0017] In summary, compared with the prior art, the utility model has the following technical effects:

[0018] (1) In the present invention, a battery rack is provided in the middle of the battery compartment, and a plurality of rows of single battery compartments are arranged in an array in the battery rack. A plurality of battery boxes and a high-voltage box are arranged in the single battery compartment, and a set of liquid cooling components and fire protection components are installed, thereby reducing the manufacturing cost.

[0019] (2) In the present invention, the battery box liquid inlet and the battery box liquid outlet are located on one side of the battery box, and the battery box fire outlet is located on the other side of the battery box, which effectively separates the pipelines.

[0020] (3) In the present invention, the battery rack is welded to the box body in an integral manner, and the container and the battery rack columns are welded as a whole, which increases the overall structural strength and is more solid and stable during lifting and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of an energy storage container of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the liquid cooling unit and liquid cooling pipe fittings of the utility model;

[0023] Figure 3 This is a schematic diagram of the front view structure of the fire fighting unit and fire fighting pipe fittings of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the fire-fighting unit and fire-fighting pipe fittings of the utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of a container of the present utility model;

[0026] Figure 6 This is a schematic diagram of the battery rack structure of the utility model;

[0027] Figure 7 This is the front view of the battery box of the utility model;

[0028] Figure 8 It is a rear view of the battery box of the utility model.

[0029] In the accompanying drawings, the component names represented by the reference numerals are listed as follows:

[0030] 100, liquid cooling cabin; 110, liquid cooling unit; 121, liquid cooling inlet main pipeline; 122, liquid cooling inlet first branch pipeline; 123, liquid cooling inlet second branch pipeline; 131, liquid cooling outlet main pipeline; 132, liquid cooling outlet first branch pipeline; 133, liquid cooling outlet second branch pipeline; 200, battery cabin; 210, column; 211, load-bearing beam; 220, battery box; 221, battery box fire outlet; 222, battery box liquid inlet; 223, battery box liquid outlet; 300, equipment cabin; 310, fire cabinet; 320, cabin-level fire branch pipe; 321, first nozzle; 330, first cluster-level fire branch; 340, second cluster-level fire branch; 350, second nozzle; 360, electric control cabinet. DETAILED DESCRIPTION

[0031] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0032] Reference Figure 1 - Figure 6 The present embodiment discloses an energy storage container, comprising a box body, a liquid cooling cabin 100, a battery cabin 200 and an equipment cabin 300 arranged in sequence along the length direction of the box body, wherein the equipment cabin comprises a fire cabin; a battery rack is arranged in the middle of the battery cabin 200, and a plurality of battery boxes 220 and a high-voltage box are arranged in an array in the battery rack, and the high-voltage box is electrically connected to the battery box 220; a liquid cooling unit 110 is arranged in the liquid cooling cabin 100, and the liquid cooling unit 110 is connected to the battery box 220 in the battery cabin 200 through a liquid cooling pipe fitting; a fire fighting cabinet 310 is arranged in the fire fighting cabin, and the fire fighting cabinet 310 is connected to the battery box 220 in the battery cabin 200 through a fire fighting pipe assembly.

[0033] In this embodiment, refer to Figure 2 - Figure 3, a liquid cooling unit 110 is installed in the liquid cooling cabin 100, and the liquid cooling unit 110 is connected to the battery box 220 in the battery compartment 200 through liquid cooling pipes; wherein the liquid cooling unit 110 is provided with a liquid discharge port and a liquid return port, and the liquid cooling pipes include a liquid cooling inlet pipe and a liquid cooling outlet pipe. Specifically, the liquid cooling inlet pipe includes a liquid cooling main inlet line 121, a plurality of liquid cooling first branch inlet lines 122, and a plurality of liquid cooling second branch inlet lines 123. The inlet of the liquid cooling main inlet line 121 is connected to the liquid discharge port, the outlet of the liquid cooling main inlet line 121 is connected to the inlet of the first branch inlet line 122, the outlet of the first branch inlet line 122 is connected to the inlet of the second branch inlet line 123, and the second branch inlet line 123 transports the coolant to the battery compartment 200, and is connected to the battery box inlet. The liquid outlet 222 is connected; similarly, the liquid cooling outlet pipe includes a liquid cooling outlet main line 131, a plurality of liquid cooling outlet first branch lines 132 and a plurality of liquid cooling outlet second branch lines 133, the inlet of the liquid cooling outlet second branch line 133 is connected to the battery box outlet 223, the outlet of the liquid cooling outlet second branch line 133 is connected to the inlet of the liquid cooling outlet first branch line 132, the outlet of the liquid cooling outlet first branch line 132 is connected to the inlet of the liquid cooling outlet main line 131, and the liquid cooling outlet main line 131 is connected to the liquid return port. In a specific embodiment, the liquid cooling inlet main line 121 and the liquid cooling outlet main line 131 are arranged at the bottom of the battery compartment 200, and the liquid cooling inlet first branch line 122 and the liquid cooling outlet second branch line 133 are arranged vertically.

[0034] In this embodiment, a plurality of battery boxes 220 are arranged in an array in the battery compartment 200. The battery box 220 includes a box body, a battery cell module and a liquid cooling plate. The battery cell module is located in the cavity of the box body. The battery cell module is 104 battery cells connected in series. The liquid cooling plate is fixedly arranged in the box body. Figure 7 and Figure 8 The liquid cooling plate is provided with a battery box liquid inlet 222 and a battery box liquid outlet 223, both of which are connected to the cooling channel in the liquid cooling plate; the battery box liquid outlet 223 can be connected to the liquid return port of the liquid cooling unit through a liquid cooling outlet pipe, and the battery box liquid inlet 222 can be connected to the liquid discharge port of the liquid cooling unit through a liquid cooling inlet pipe; the side wall of the box body is provided with a battery box fire outlet 221, and the battery box fire outlet 221 can be connected to the nozzle on the fire branch pipe. Specifically, the battery box liquid inlet 222 and the battery box liquid outlet 223 are located on one side of the battery box 220, and the battery box fire outlet 221 is located on the other side of the battery box 220.

[0035] In this embodiment, refer to Figure 4, a fire fighting unit is arranged in the fire fighting cabin, and the fire fighting unit includes a fire fighting cabinet 310; the fire fighting pipeline assembly includes a fire fighting cluster-level main pipe, a cabin-level fire fighting branch pipe 320 and a first cluster-level fire fighting branch 330, the cabin-level fire fighting branch pipe 320 and the first cluster-level fire fighting branch 330 are respectively connected to the fire fighting cluster-level main pipe, the fire fighting cluster-level main pipe is connected to the fire fighting cabinet, the cabin-level fire fighting branch pipe 320 is arranged in the middle position of the top of the battery cabin 200, and the first cluster-level fire fighting branch 330 is arranged on both sides of the top of the battery cabin 200. Specifically, the cabin-level fire fighting branch pipe 320 is provided with a plurality of first nozzles 321, which are arranged at the top of the battery cabin 200 and between the pillars; the first cluster-level fire fighting branch 330 is also connected to the second cluster-level fire fighting branch 340, and the second cluster-level fire fighting branch 340 is provided with a second nozzle 350, and the second nozzle 350 corresponds to the fire fighting port 221 of the battery box.

[0036] In this embodiment, refer to Figure 5 - Figure 6 The battery compartment 200 is provided with a battery rack, and the battery rack is integrally welded with the box body. The container and the battery rack are integrally welded to enhance the overall structural strength, which is more solid during hoisting and transportation and can accommodate large-capacity battery boxes.

[0037] Specifically, the battery rack includes a column 210 vertically fixed on the bottom of the box body, and a plurality of load-bearing beams 211 arranged on the column 210 along the direction in which the battery box is pushed in. The column 210 and the load-bearing beam 211 form at least one battery placement area. The battery box is placed on the upper surface of the load-bearing beam 211, and the height of the battery placement area is greater than the height of the battery box 220. Among them, the high-voltage box is arranged in the middle of the battery rack. The high-voltage box has a built-in energy storage battery cluster control management module BPU, which has CAN and RS-485 communication bus interfaces, and can realize the communication function between the high-voltage box and the energy storage battery management module BMU and the energy storage battery management system host BAU, and realize the control, protection and data communication functions of the battery box.

[0038] In this embodiment, the equipment cabin includes an electric control cabin, which is arranged in front and behind the fire cabin, and the electric control cabin includes an electric control cabinet 360, which includes a controller, and the controller adopts an industrial control computer or an embedded computer, and the embedded computer adopts an STM32 single-chip microcomputer or a PLC single-chip microcomputer. The controller establishes communication connections with the fire-fighting unit, the liquid cooling unit, etc. through the RS485 communication interface, and realizes data transmission through the RS485 communication interface.

[0039] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An energy storage container, comprising a box body, characterized in that: A liquid cooling cabin, a battery cabin and an equipment cabin are arranged in sequence along the length direction of the box body, and the equipment cabin includes a fire cabin; a battery rack is arranged in the middle of the battery cabin, and a high-voltage box and a plurality of battery boxes are arranged in an array in the battery rack, and the high-voltage box is electrically connected to the battery box; a liquid cooling unit is arranged in the liquid cooling cabin, and the liquid cooling unit is connected to the battery box in the battery cabin through liquid cooling pipes; a fire cabinet is arranged in the fire cabin, and the fire cabinet is connected to the battery box in the battery cabin and the top of the battery cabin through a fire pipe assembly.

2. An energy storage container according to claim 1, characterized in that: A liquid cooling unit is installed in the liquid cooling cabin, and the liquid cooling unit is connected to the battery box in the battery cabin through liquid cooling pipes; wherein the liquid cooling unit is provided with a liquid discharge port and a liquid return port, and the liquid cooling pipes include a liquid cooling inlet pipe and a liquid cooling outlet pipe.

3. An energy storage container according to claim 2, characterized in that: The liquid cooling inlet pipe includes a liquid cooling inlet main pipeline, a liquid cooling inlet first branch pipeline and a liquid cooling inlet second branch pipeline. The liquid cooling inlet first branch pipeline is respectively connected to the liquid cooling inlet first branch pipeline and the liquid cooling inlet second branch pipeline, and the liquid cooling inlet second branch pipeline is connected to the battery box.

4. An energy storage container according to claim 2, characterized in that: The liquid cooling outlet pipe includes a liquid cooling outlet main pipeline, a liquid cooling outlet first branch pipeline and a liquid cooling outlet second branch pipeline. The liquid cooling outlet first branch pipeline is respectively connected to the liquid cooling outlet first branch pipeline and the liquid cooling outlet second branch pipeline, and the liquid cooling outlet second branch pipeline is connected to the battery box.

5. The energy storage container according to claim 2, characterized in that: A plurality of battery boxes are arranged in an array in the battery compartment, and the battery box includes a box body, a battery cell module and a liquid cooling plate, wherein the battery cell module is located in the cavity of the box body; the liquid cooling plate is fixedly arranged in the box body, and the liquid cooling plate is provided with a battery box liquid inlet and a battery box liquid outlet, and the battery box liquid inlet and the battery box liquid outlet are both connected with the cooling flow channel in the liquid cooling plate; the battery box liquid outlet can be connected with the liquid return port of the liquid cooling unit through a liquid cooling liquid outlet pipe fitting, and the battery box liquid inlet can be connected with the liquid discharge port of the liquid cooling unit through a liquid cooling liquid inlet pipe fitting; the side wall of the box body is provided with a battery box fire outlet; the battery box liquid inlet and the battery box liquid outlet are located on one side of the battery box, and the battery box fire outlet is located on the other side of the battery box.

6. An energy storage container according to claim 5, characterized in that: A fire-fighting unit is arranged in the fire-fighting cabin, and the fire-fighting unit includes a fire-fighting cabinet; the fire-fighting pipeline assembly includes a fire-fighting cluster-level main pipe, a cabin-level fire-fighting branch pipe and a first cluster-level fire-fighting branch pipe, and the cabin-level fire-fighting branch pipe and the first cluster-level fire-fighting branch pipe are respectively connected to the fire-fighting cluster-level main pipe, and the fire-fighting cluster-level main pipe is connected to the fire-fighting cabinet, and the cabin-level fire-fighting branch pipe is arranged in the middle position of the top of the battery cabin, and the first cluster-level fire-fighting branch pipe is arranged on both sides of the top of the battery cabin.

7. An energy storage container according to claim 6, characterized in that: The first cluster-level fire-fighting branch is also connected to a second cluster-level fire-fighting branch, and a second nozzle is arranged on the second cluster-level fire-fighting branch, and the second nozzle corresponds to the battery box.

8. The energy storage container according to claim 1, characterized in that: The depth of the battery rack is smaller than the narrow side width of the box body; the battery rack is integrally welded to the box body.

9. The energy storage container according to claim 8, characterized in that: The battery rack includes a column vertically fixed on the bottom of the box body and a plurality of load-bearing beams arranged on the column along the direction in which the battery box is pushed in. The column and the load-bearing beam form at least one battery placement area. The battery box is placed on the upper surface of the load-bearing beam. The height of the battery placement area is greater than the height of the battery box.

10. The energy storage container according to claim 1, characterized in that: The equipment compartment includes an electric control compartment, which is arranged in front and behind the fire fighting compartment. The electric control compartment includes an electric control cabinet, which contains a controller, and the controller is electrically connected to the liquid cooling unit and the fire fighting cabinet.

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