Air duct of energy storage container and energy storage container with air duct

Abstract

The invention relates to an energy storage container air duct which is used for temperature control and gas circulation in an energy storage container, the air duct is installed on the two sides of a battery cluster and comprises an air inlet pipe and an air wall mechanism, the air inlet end of the air inlet pipe is provided with a refrigeration mechanism, the air wall mechanism comprises cooling pipes, and the cooling pipes are distributed in parallel; the air inlet pipe extends from the refrigeration mechanism to the cooling pipe, the diameter of the air inlet pipe is gradually increased, the cooling pipe is provided with branch pipes, and the branch pipes all face the battery cluster; the exhaust assembly comprises a strip-shaped groove, the strip-shaped groove is longitudinally distributed along the ventilation wall mechanism, the branch pipe is communicated with an exhaust pipe through an electric control three-way valve, a top cover is arranged at the top of the strip-shaped groove, the side face of the top cover is communicated with the exhaust pipe, and a first exhaust fan is arranged at the outlet end of the exhaust pipe; the smoke sensor and the temperature sensor are both in signal connection with the controller. According to the energy storage container air duct designed in the invention, the lithium battery part with thermal runaway can be accurately identified and rapidly cooled and extinguished, so that the spreading of thermal runaway is avoided, and the loss of the energy storage container is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage containers, and in particular to an energy storage container air duct and an energy storage container having the air duct. Background Art

[0002] With the advancement of new energy technology and equipment, the quality of clean energy produced has been greatly improved, so the utilization rate is getting higher and higher. In order to further improve the operating efficiency of wind and photovoltaic power stations, the surplus electricity in the off-peak period is stored through energy storage devices to supplement the peak period. The container energy storage power station is a highly integrated energy storage device, that is, a batch of lead-acid batteries and related electronic control devices are installed in the inner cavity of the container. Because lead-acid batteries generate a certain amount of heat during the charging and discharging process, if the heat is not discharged in time in this closed and narrow space, the working environment of the battery will inevitably deteriorate.

[0003] The prior art promotes air circulation inside the container by configuring an internal air duct, and uses the continuous input of cold air from the outside to replace the hot air inside, thereby achieving effective cooling. The air duct used in the prior art is a kind of rectangular cross-section pipe connected in sequence by several sections of different sizes. This step-down pipe structure is simple and easy to make, and can achieve the purpose of air supply and cooling. However, there is a sharp contraction defect at the connection between the front and rear sections of this kind of pipe. It can be seen from fluid mechanics that the fluid resistance of the pipe with a steep drop in cross-sectional area is large, and the energy loss is high. If there are multiple sharp contractions in the same air duct, there is a large difference in the wind force at the inlet and outlet of the air duct. Therefore, the air duct of the prior art has the problem of uneven wind cooling in actual application, which causes the matching lead-acid batteries to work at different ambient temperatures. Since the ambient temperature has an impact on the operation of the lead-acid battery, it will inevitably cause performance differences, especially high temperature is easy to reduce the cycle life of the lead-acid battery. Summary of the invention

[0004] In order to overcome the problems existing in the prior art, the present application provides an energy storage container air duct and an energy storage container having the air duct.

[0005] The energy storage container air duct and the energy storage container having the air duct provided in the present application adopt the following technical solutions:

[0006] An energy storage container air duct is used for temperature control and gas circulation in the energy storage container. The air duct is installed on both sides of a plurality of battery clusters arranged side by side in the energy storage container, and comprises an air inlet pipe and a wind wall mechanism on the side. The air inlet pipe is installed at the end of the energy storage container and the air inlet end of the air inlet pipe is connected to a refrigeration mechanism. The wind wall mechanism comprises a plurality of cooling pipes connected to the air inlet pipe, wherein the cooling pipes are arranged in parallel. The air inlet pipe extends from the refrigeration mechanism to the cooling pipe, wherein the diameter of the air inlet pipe gradually increases, and a branch pipe for conducting cooling gas to the battery cluster is provided on the cooling pipe, wherein the branch pipes are all oriented toward the battery cluster. An exhaust component, the exhaust component includes a strip groove installed at the outlet of the branch pipe, wherein the strip groove is distributed longitudinally along the wind wall mechanism, the branch pipe is also connected to the exhaust pipe through an electrically controlled three-way valve, a top cover is installed on the top of the strip groove, wherein the side of the top cover is connected to the exhaust pipe through a connecting pipe, and a first exhaust fan is installed at the outlet end of the exhaust pipe; a monitoring component, the monitoring component includes a smoke sensor installed on the top surface of the top cover and a temperature sensor on the side of the battery cluster, and both the smoke sensor and the temperature sensor are connected to the controller signal at the end of the energy storage container, and the controller is also connected to the electrically controlled three-way valve and the exhaust fan signal.

[0007] By adopting the above technical solution, the air duct of the energy storage container is installed on both sides of the battery cluster in the energy storage container. The air duct is composed of an air inlet pipe connected to a refrigeration mechanism and a wind wall mechanism. The air inlet pipe introduces the cold air generated by the refrigeration mechanism into the wind wall mechanism. The wind wall mechanism cools the battery cluster in the energy storage container by opening branch pipes on several groups of parallel cooling pipes, so as to evenly release cooling gas from both sides of the energy storage container to cool the battery cluster inside, thereby improving the uniformity of the temperature of the battery cluster in the energy storage container when working. In addition, an exhaust assembly is also installed in the wind wall mechanism, and the exhaust assembly includes a strip groove installed at the outlet of the branch pipe and a top cover on the top of the strip groove, wherein several groups of branch pipes longitudinally distributed on the cooling pipe correspond to a single group of strip grooves and a top cover, and the functions of the strip grooves and the top cover are, first, a sealing structure that can be formed on the side and top surface of the energy storage container, and second, when exhausting, the single strip groove and the top cover can gather the air at the corresponding position to the strip groove for discharge, thereby realizing the directional discharge of high-temperature gas and avoiding the transmission to the adjacent battery cluster or battery module to cause the spread of high temperature and fire. The monitoring components installed in the energy storage container include a smoke sensor inside the top cover. When the lithium battery in the battery cluster experiences thermal runaway, the internal chemical reaction will produce some gases and volatile substances. These substances will first form smoke and be released. As the temperature continues to rise, they will cause combustion and produce flames. The smoke sensor can detect the thermal runaway of the lithium battery as early as possible. The monitoring components also include temperature sensors installed on the side of the battery cluster. The temperature sensors are evenly distributed and can identify temperature changes in a single area. When the smoke sensor and temperature sensor detect abnormal conditions inside the battery pack in the energy storage container and feed back to the controller, the control The device controls the electronically controlled three-way valve in the wind wall mechanism of the corresponding area to close the branch pipe and the cooling pipe, connect the branch pipe with the exhaust pipe, and start the first row of fans on the corresponding exhaust pipe. Under the action of the first row of fans, the gas in the corresponding top cover is also accelerated to be discharged, and finally the wind wall mechanism on the side of the battery cluster in normal operation inputs cooling gas to the battery cluster, and the wind wall on the side of the battery cluster with thermal runaway discharges the high-temperature gas generated by the battery cluster with thermal runaway, forming an inlet and outlet structure that can allow the introduced cooling gas to quickly gather at the part of the battery cluster with thermal runaway, cool the battery cluster part with thermal runaway and discharge the high-temperature gas, thereby avoiding the spread of thermal runaway.

[0008] Preferably, the branch pipes on the cooling pipes are evenly distributed along the length direction of the energy storage container, and the outlets of the branch pipes are connected to the bottom surface of the strip groove, wherein the inner diameter of the branch pipes is the same as the width of the bottom of the strip groove, and the two sides of the strip groove are inclined outward.

[0009] Preferably, the strip-shaped grooves are sealed to each other, and the top and bottom of the strip-shaped grooves are sealed to the top and bottom of the energy storage container.

[0010] Preferably, the air inlet ducts are connected to both sides and the bottom of the refrigeration mechanism, wherein the air inlet ducts on both sides are connected to the wind wall mechanism on the side wall of the energy storage container, and the air inlet duct at the bottom is connected to the cold air duct at the bottom of the energy storage container, and the cold air duct is located between the battery clusters at the center of the bottom of the energy storage container, and has air outlets arranged thereon along the length direction of the energy storage container.

[0011] By adopting the above technical solution, the branch pipes on the cooling pipe are evenly distributed along the length direction of the energy storage container. The branch pipes can evenly guide the cooling gas in the cooling pipe to each position on the battery cluster, and the strip grooves at the outlet of the branch pipe are provided with outwardly inclined sides, and the strip grooves are sealed and connected to each other, which is convenient for diffusing the cooling gas into the energy storage container, achieving relatively uniform cooling of the battery cluster, and when the hot air in the energy storage container is led out, it is also convenient to gather the hot air for rapid discharge. An air inlet pipe connected to the cold air pipe at the bottom of the energy storage container is also installed at the bottom of the refrigeration mechanism. The air outlets distributed on the cold air pipe can densely cover the cooling needs of the bottom of the battery cluster away from the wind wall mechanism, ensuring the overall cooling effect of the battery cluster.

[0012] Preferably, the air inlet of the refrigeration mechanism is installed on a side of the refrigeration mechanism away from the energy storage container, and a first metal protective cover is installed at the outer end of the air inlet, wherein a dust and sand prevention mechanism is installed on the air inlet, including a multi-stage filter screen arranged in sequence in the air inlet, wherein dust collecting chambers are provided on both sides and the bottom of the multi-stage filter screen, and the air permeability of the multi-stage filter screen decreases from the outside to the inside.

[0013] Preferably, the filter screen is a downwardly inclined filter screen, a side wall of the filter screen is provided with an air hole connected to the dust collecting chamber, and the bottom of the filter screen is connected to the dust collecting chamber.

[0014] By adopting the above technical scheme, the first metal protective cover outside the air inlet can prevent large impurities from entering and affecting the air intake of the refrigeration mechanism. The air permeability of the multi-layer filter screens at the air inlet of the refrigeration mechanism is weakened successively. When the air passes through the downward-inclined dust filter screen, the impurities filtered out can fall into the dust collecting chamber at the bottom under the action of gravity and the introduced wind. The air permeability of the incoming air and the filter screen is weakened, forming lateral air pressure. The filtered dust enters the dust collecting chamber on the side through the air holes and falls downward into the dust collecting chamber at the bottom, avoiding dust accumulation and increasing the service life of the filter screen.

[0015] Preferably, an air outlet is installed at the top of one end of the energy storage container away from the refrigeration mechanism. The air outlet is located at the top center of the end plate of the energy storage container and between two adjacent battery clusters. A second exhaust fan and an air outlet valve are installed on the air outlet, and the air outlet valve is connected to the controller signal.

[0016] Preferably, the air outlets are distributed obliquely from the inside to the outside, and a second metal protective cover is also installed at the outer end of the air outlet.

[0017] By adopting the above technical solution, the air outlet of the energy storage container is set at the top center of one end away from the refrigeration mechanism. Through the second exhaust fan at the air outlet, the cooling gas introduced by the wind wall mechanism and the cold air duct can be quickly discharged after heat exchange with the battery cluster, greatly improving the heat exchange efficiency, and the air outlet valve installed at the air outlet is closed when the battery cluster has thermal runaway, preventing the electromagnetic cluster from thermal runaway from spreading with the flow of air. The air outlet tilted outward reduces the entry of external water and impurities, and the second metal protective cover installed at the outer end prevents the entry of large impurities from affecting the air outlet.

[0018] Preferably, a two-axis truss manipulator is installed on the top of the energy storage container, a fire extinguishing end is installed at the bottom of the output end, and the fire extinguishing end is connected to the dry powder fire extinguisher at the end of the energy storage container through a pipeline.

[0019] By adopting the above technical solution, the two-axis truss manipulator installed on the top of the energy storage container can move the fire extinguishing end to the corresponding position when the monitoring component detects that thermal runaway occurs at the specific location of the battery cluster, and start the dry powder fire extinguisher under the control of the controller to extinguish the fire, thereby avoiding the spread of fire, achieving precise fire extinguishing and reducing losses.

[0020] An energy storage container comprises an energy storage container air duct, an internal frame and an external baffle plate, wherein a battery cluster is installed in the frame.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. The present application arranges wind wall mechanisms on both sides of the energy storage container to form an inlet-outlet structure at the battery cluster part, so that the introduced cooling gas can be quickly gathered at the battery cluster part with thermal runaway, and the battery cluster part with thermal runaway is cooled and controlled and high-temperature gas is discharged, thereby avoiding the spread of thermal runaway;

[0023] 2. The present application arranges multiple layers of filters with successively decreasing air permeability at the air inlet of the refrigeration mechanism, cooperates with a downwardly inclined dust filter and a dust collecting chamber at the bottom, collects the filtered dust, avoids dust accumulation, and increases the service life of the filter;

[0024] 3. This application is also equipped with a fire extinguishing end installed on a two-axis truss manipulator, which can accurately extinguish the thermal runaway part under the control of the controller to avoid the spread of fire and reduce losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The present invention is a schematic diagram of an energy storage container air duct and an air outlet side structure of an energy storage container having the air duct;

[0026] Figure 2 yes Figure 1Enlarged view of point A in the middle;

[0027] Figure 3 The present invention is a schematic diagram of the structure of an energy storage container air duct and an air inlet side of an energy storage container having the air duct;

[0028] Figure 4 The present invention is a schematic diagram of the overall structure of an energy storage container air duct and an energy storage container having the air duct without a top cover and a connecting pipe;

[0029] Figure 5 yes Figure 4 Enlarged view of point B in the middle;

[0030] Figure 6 The present invention is a schematic diagram of the structure of an energy storage container air duct and an energy storage container having the air duct without a top cover, a connecting pipe, a wind wall on one side and a battery cluster;

[0031] Figure 7 An exploded diagram of an energy storage container air duct and an energy storage container air inlet having the air duct;

[0032] Figure 8 yes Figure 7 Enlarged view of the center air inlet.

[0033] Explanation of the reference numerals: 1. energy storage container; 11. air outlet; 111. second exhaust fan; 112. air outlet valve; 113. second metal protective cover; 12. two-axis truss manipulator; 121. fire extinguishing end; 122. dry powder fire extinguisher; 13. frame; 14. baffle plate; 2. air duct; 3. air inlet pipe; 31. cold air duct; 311. air outlet; 4. wind wall mechanism; 41. cooling pipe; 411. branch pipe; 412. electric three-way valve; 5. battery cluster; 6. refrigeration mechanism; 61. air inlet; 611. first metal protective cover; 612. filter; 6121. air hole; 613. dust collecting chamber; 7. exhaust assembly; 71. strip groove; 72. exhaust pipe; 721. first exhaust fan; 73. top cover; 731. connecting pipe; 8. monitoring assembly; 81. controller. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-8 This application is described in further detail.

[0035] Example 1

[0036] The embodiment of the present application discloses an air duct for an energy storage container.

[0037] Reference Figure 1-Figure 8, an energy storage container air duct, used for temperature control and gas circulation in an energy storage container 1, the air duct 2 is installed on both sides of a plurality of battery clusters 5 arranged side by side in the energy storage container 1, and includes an air inlet pipe 3 and a side wind wall mechanism 4, wherein the air inlet pipe 3 is installed at the end of the energy storage container 1 and the air inlet end of the air inlet pipe 3 is connected to a refrigeration mechanism 6, the wind wall mechanism 4 includes a plurality of groups of cooling pipes 41 connected to the air inlet pipe 3, wherein the cooling pipes 41 are distributed in parallel; the air inlet pipe 3 extends from the refrigeration mechanism 6 to the cooling pipe 41, wherein the diameter of the air inlet pipe 3 gradually increases, and a branch pipe 411 for conducting cooling gas to the battery cluster 5 is opened on the cooling pipe 41, wherein the branch pipes 411 are all oriented toward the battery cluster 5; an exhaust component 7, an exhaust The component 7 includes a strip groove 71 installed at the outlet of the branch pipe 411, wherein the strip groove 71 is distributed longitudinally along the wind wall mechanism 4, the branch pipe 411 is also connected to the exhaust pipe 72 through the electrically controlled three-way valve 412, a top cover 73 is installed on the top of the strip groove 71, wherein the side of the top cover 73 is connected to the exhaust pipe 72 through a connecting pipe 731, and a first exhaust fan 721 is installed at the outlet end of the exhaust pipe 72; a monitoring component 8, the monitoring component 8 includes a smoke sensor installed on the top surface of the top cover 73 and a temperature sensor on the side of the battery cluster 5, and the smoke sensor and the temperature sensor are both connected to the controller 81 at the end of the energy storage container 1 by signal, and the controller 81 is also connected to the electrically controlled three-way valve 412 and the exhaust fan by signal. The air duct 2 of the energy storage container 1 is installed on both sides of the battery cluster 5 in the energy storage container 1. The air duct 2 is composed of an air inlet pipe 3 connected to a refrigeration mechanism 6 and a wind wall mechanism 4. The air inlet pipe 3 guides the cold air generated by the refrigeration mechanism 6 into the wind wall mechanism 4. The wind wall mechanism 4 cools the battery cluster 5 in the energy storage container 1 through a plurality of groups of parallel cooling pipes 41. The cooling gas is uniformly released from both sides of the energy storage container 1 to cool the battery cluster 5 inside the energy storage container 1, thereby improving the temperature uniformity of the battery cluster 5 in the energy storage container 1 when working. In addition, an exhaust assembly 7 is installed in the wind wall mechanism 4, and the exhaust assembly 7 includes a strip groove 71 installed at the outlet of the branch pipe 411 and a top cover 73 on the top of the strip groove 71, wherein a plurality of groups of branch pipes 411 longitudinally distributed on the cooling pipe 41 correspond to a single group of strip grooves 71 and top cover 73, and the functions of the strip grooves 71 and the top cover 73 are, firstly, to form a sealing structure on the side and top surface of the energy storage container 1, and secondly, when exhausting, the single strip groove 71 and the top cover 73 can gather the air at the corresponding position to the strip groove 71 for discharge, thereby realizing the directional discharge of high-temperature gas and avoiding the transmission to the adjacent battery cluster 5 or battery module to cause the spread of high temperature and fire.The monitoring component 8 installed in the energy storage container 1 includes a smoke sensor inside the top cover 73. When the lithium battery in the battery cluster 5 has thermal runaway, the internal chemical reaction will produce some gases and volatile substances. These substances will first form smoke and be released. As the temperature further increases, they will cause combustion and produce flames. The smoke sensor can detect the thermal runaway of the lithium battery as early as possible. The monitoring component 8 also includes a temperature sensor set on the side of the battery cluster 5. The temperature sensors are evenly distributed and can identify temperature changes in a single area. When the smoke sensor and the temperature sensor detect abnormal conditions inside the battery pack in the energy storage container 1 and feed back to the controller 81, the controller 81 controls the wind in the corresponding area. The electrically controlled three-way valve 412 in the wall mechanism 4 closes the branch pipe 411 and the cooling pipe 41, connects the branch pipe 411 and the exhaust pipe 72, and starts the first exhaust fan 721 on the corresponding exhaust pipe 72. Under the action of the first exhaust fan 721, the gas in the corresponding top cover 73 is also accelerated to be discharged, and finally the wind wall mechanism 4 on the side of the battery cluster 5 in normal operation inputs cooling gas to the battery cluster 5, and the wind wall on the side of the battery cluster 5 in thermal runaway discharges the high-temperature gas generated by the battery cluster 5 in thermal runaway, forming an inlet and outlet structure that allows the introduced cooling gas to quickly gather at the part of the battery cluster 5 in thermal runaway, cool the part of the battery cluster 5 in thermal runaway and discharge the high-temperature gas, thereby avoiding the spread of thermal runaway.

[0038] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The branch pipes 411 on the cooling pipe 41 are evenly distributed along the length direction of the energy storage container 1, and the outlets of the branch pipes 411 are connected to the bottom surface of the strip groove 71, wherein the inner diameter of the branch pipe 411 is the same as the width of the bottom of the strip groove 71, and the two sides of the strip groove 71 are inclined outward. The strip grooves 71 are sealed and connected to each other, and the top and bottom of the strip groove 71 are sealed and connected to the top and bottom of the energy storage container 1. The air inlet pipe 3 is connected to the two sides and the bottom of the refrigeration mechanism 6, wherein the air inlet pipes 3 on both sides are connected to the wind wall mechanism 4 on the side wall of the energy storage container 1, and the air inlet pipe 3 at the bottom is connected to the cold air duct 31 at the bottom of the energy storage container 1. The cold air duct 31 is located between the battery clusters 5 at the bottom center of the energy storage container 1, and is arrayed with air outlets 311 distributed along the length direction of the energy storage container 1. The branch pipes 411 on the cooling pipe 41 are evenly distributed along the length direction of the energy storage container 1. The branch pipes 411 can evenly guide the cooling gas in the cooling pipe 41 to each position on the battery cluster 5, and the strip grooves 71 at the outlet of the branch pipe 411 are provided with outwardly inclined sides, and the strip grooves 71 are sealed and connected to each other, which is convenient for diffusing the cooling gas into the energy storage container 1, achieving relatively uniform cooling of the battery cluster 5, and when the hot air in the energy storage container 1 is led out, it is also convenient to gather the hot air for rapid discharge. The bottom of the refrigeration mechanism 6 is also equipped with an air inlet pipe 3 connected to the cold air pipe 31 at the bottom of the energy storage container 1. The air outlets 311 distributed on the cold air pipe 31 can densely cover the cooling needs of the bottom of the battery cluster 5 away from the wind wall mechanism 4, ensuring the overall cooling effect of the battery cluster 5.

[0039] Reference Figure 1 , Figure 3 , Figure 7 and Figure 8The air inlet 61 of the refrigeration mechanism 6 is installed on the side of the refrigeration mechanism 6 away from the energy storage container 1, and a first metal protective cover 611 is installed at the outer end of the air inlet 61, wherein a dust and sand prevention mechanism is installed on the air inlet 61, including a multi-stage filter 612 sequentially arranged in the air inlet 61, wherein a dust collecting chamber 613 is arranged on both sides and the bottom of the multi-stage filter 612, and the air permeability of the multi-stage filter 612 decreases from the outside to the inside. The filter 612 is a downwardly inclined filter 612, and a wind hole 6121 connected to the dust collecting chamber 613 is opened on the side wall of the filter 612, and the bottom of the filter 612 is connected to the dust collecting chamber 613. The first metal protective cover 611 outside the air inlet 61 can prevent large impurities from entering and affecting the air intake of the refrigeration mechanism 6. The air permeability of the multi-layer filter 612 of the air inlet 61 of the refrigeration mechanism 6 is weakened successively. When the air passes through the downward-inclined dust filter 612, the impurities filtered out can fall into the dust collecting chamber 613 at the bottom under the action of gravity and the introduced wind. The air permeability of the incoming air and the filter 612 is weakened, forming a lateral air pressure. The filtered dust enters the dust collecting chamber 613 on the side through the air hole 6121 and falls downward into the dust collecting chamber 613 at the bottom, avoiding dust accumulation and increasing the service life of the filter 612.

[0040] Reference Figure 1 , Figure 4 and Figure 6 The energy storage container 1 is provided with an air outlet 11 at the top of the end away from the refrigeration mechanism 6. The air outlet 11 is located at the top center of the end plate of the energy storage container 1 and between two adjacent battery clusters 5. The air outlet 11 is provided with a second exhaust fan 111 and an air outlet valve 112, wherein the air outlet valve 112 is connected to the controller 81 by signal. The air outlet 11 is tilted from the inside to the outside, and a second metal protective cover 113 is also provided at the outer end of the air outlet 11. The air outlet 11 of the energy storage container 1 is provided at the top center of the end away from the refrigeration mechanism 6. Through the second exhaust fan 111 at the air outlet 11, the cooling gas introduced by the wind wall mechanism 4 and the cold air duct 31 can be quickly discharged after heat exchange with the battery cluster 5, thereby greatly improving the heat exchange efficiency. In addition, the air outlet valve 112 installed at the air outlet 11 is closed when the battery cluster 5 is in thermal runaway, so as to prevent the electromagnetic cluster in thermal runaway from spreading with the flow of air. The outwardly inclined air outlet 11 reduces the ingress of external water and impurities, and the second metal protective cover 113 installed at the outer end prevents the ingress of large impurities that affect the air outlet.

[0041] Reference Figure 1 , Figure 4 and Figure 6A two-axis truss manipulator 12 is installed on the top of the energy storage container 1, and a fire extinguishing terminal 121 is installed at the bottom of its output end, and the fire extinguishing terminal 121 is connected to the dry powder fire extinguisher 122 at the end of the energy storage container 1 through a pipeline. The two-axis truss manipulator 12 installed on the top of the energy storage container 1 can move the fire extinguishing terminal 121 to the corresponding position when the monitoring component 8 detects that the specific position of the battery cluster 5 has thermal runaway, and start the dry powder fire extinguisher 122 under the control of the controller 81 to extinguish the fire, thereby avoiding the spread of the fire, achieving accurate fire extinguishing and reducing losses.

[0042] Example 2

[0043] The embodiment of the present application discloses an energy storage container 1.

[0044] An energy storage container 1 includes an energy storage container 1 air duct 2, an internal frame 13 and an external baffle plate 14, wherein a battery cluster 5 is installed in the frame 13.

[0045] Working principle: First, the refrigeration mechanism 6 introduces air filtered by the multi-layer filter 612 through the air inlet 61, and after forming cooled air, it is introduced into the wind wall mechanism 4 and the cold air duct 31 through the air inlet pipes 3 on both sides and the bottom respectively, wherein the wind wall mechanism 4 discharges the cooling gas through the branch pipes 411 on several groups of cooling pipes 41 distributed in parallel to cool the side of the battery cluster 5, and the cooling pipe 41 discharges the cooling gas from the bottom through the air outlet 311 distributed along the length direction of the energy storage container 1 to cool the side of the battery cluster 5 away from the wind wall mechanism 4, and then the cooling gas exchanges heat with the battery cluster 5 and discharges the hot air through the air outlet 11 under the action of the second exhaust fan 111. When part of the battery cluster 5 in the energy storage container 1 has thermal runaway, the evenly distributed temperature sensors can identify the temperature change in a single area, and the smoke sensor can identify the smoke generated by the thermal runaway of the lithium battery, accurately locate the point of thermal runaway of the lithium battery in the energy storage container 1, and then feed back to the controller 81. The controller 81 controls the electrically controlled three-way valve 412 in the wind wall mechanism 4 of the corresponding area to close the branch pipe 411 and the cooling pipe 41, connect the branch pipe 411 with the exhaust pipe 72, and start the first exhaust fan 721 on the corresponding exhaust pipe 72. Under the action of the first exhaust fan 721, the gas in the corresponding top cover 73 is also accelerated to be discharged, and finally the wind wall mechanism 4 on the side of the battery cluster 5 that is normally operating inputs cooling gas to the battery cluster 5, and the wind wall on the side of the battery cluster 5 with thermal runaway discharges the high-temperature gas generated by the battery cluster 5 with thermal runaway, forming a one-in-one-out structure that allows the introduced cooling gas to quickly gather at the part of the battery cluster 5 with thermal runaway, and cool the part of the battery cluster 5 with thermal runaway and discharge the high-temperature gas. At the same time, the two-axis truss manipulator 12 installed on the top of the energy storage container 1 can move the fire extinguishing end 121 to the corresponding position when the monitoring component 8 detects that thermal runaway occurs at a specific position of the battery cluster 5, and start the dry powder fire extinguisher 122 to extinguish the fire under the control of the controller 81.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An energy storage container air duct, used for temperature control and gas circulation in an energy storage container (1), characterized in that: The air duct (2) is installed on both sides of a plurality of battery clusters (5) arranged side by side in the energy storage container (1), and comprises an air inlet pipe (3) and a side wind wall mechanism (4), wherein the air inlet pipe (3) is installed at the end of the energy storage container (1) and the air inlet end of the air inlet pipe (3) is connected to a refrigeration mechanism (6), and the wind wall mechanism (4) comprises a plurality of groups of cooling pipes (41) connected to the air inlet pipe (3), wherein the cooling pipes (41) are arranged in parallel; the air inlet pipe (3) extends from the refrigeration mechanism (6) to the cooling pipe (41), wherein the diameter of the air inlet pipe (3) gradually increases, and a branch pipe (411) for conducting cooling gas to the battery cluster (5) is provided on the cooling pipe (41), wherein the branch pipes (411) are all oriented toward the battery cluster (5); An exhaust assembly (7), the exhaust assembly (7) comprising a strip groove (71) installed at the outlet of the branch pipe (411), wherein the strip groove (71) is distributed longitudinally along the wind wall mechanism (4), the branch pipe (411) is also connected to the exhaust pipe (72) through an electrically controlled three-way valve (412), a top cover (73) is installed on the top of the strip groove (71), wherein the side of the top cover (73) is connected to the exhaust pipe (72) through a connecting pipe (731), and a first exhaust fan (721) is installed at the outlet end of the exhaust pipe (72); A monitoring assembly (8), the monitoring assembly (8) comprising a smoke sensor installed on the top surface of the top cover (73) and a temperature sensor on the side of the battery cluster (5), and the smoke sensor and the temperature sensor are both connected to a controller (81) at the end of the energy storage container (1) by signal, and the controller (81) is also connected to an electric-controlled three-way valve (412) and an exhaust fan by signal.

2. The energy storage container air duct according to claim 1, characterized in that: The branch pipes (411) on the cooling pipe (41) are evenly distributed along the length direction of the energy storage container (1), and the outlets of the branch pipes (411) are connected to the bottom surface of the strip-shaped groove (71), wherein the inner diameter of the branch pipe (411) is the same as the width of the bottom of the strip-shaped groove (71), and the two side surfaces of the strip-shaped groove (71) are inclined outward.

3. The energy storage container air duct according to claim 2, characterized in that: The strip-shaped grooves (71) are sealed to each other, and the top and bottom of the strip-shaped grooves (71) are sealed to the top and bottom of the energy storage container (1).

4. The energy storage container air duct according to claim 3 is characterized in that: The air inlet pipe (3) is connected to both sides and the bottom of the refrigeration mechanism (6), wherein the air inlet pipes (3) on both sides are connected to the wind wall mechanism (4) on the side wall of the energy storage container (1), and the air inlet pipe (3) at the bottom is connected to the cold air pipe (31) at the bottom of the energy storage container (1), and the cold air pipe (31) is located between the battery clusters (5) at the center of the bottom of the energy storage container (1), and has air outlets (311) arranged thereon and distributed along the length direction of the energy storage container (1).

5. The energy storage container air duct according to claim 1, characterized in that: The air inlet (61) of the refrigeration mechanism (6) is installed on a side of the refrigeration mechanism (6) away from the energy storage container (1), and a first metal protective cover (611) is installed at the outer end of the air inlet (61), wherein a dust and sand prevention mechanism is installed on the air inlet (61), including a multi-stage filter (612) sequentially arranged in the air inlet (61), wherein dust collecting chambers (613) are provided on both sides and the bottom of the multi-stage filter (612), and the air permeability of the multi-stage filter (612) decreases from the outside to the inside.

6. The energy storage container air duct according to claim 5, characterized in that: The filter screen (612) is a downwardly inclined filter screen (612), a side wall of the filter screen (612) is provided with an air hole (6121) connected to the dust collecting chamber (613), and the bottom of the filter screen (612) is connected to the dust collecting chamber (613).

7. The energy storage container air duct according to claim 1, characterized in that: An air outlet (11) is installed at the top of one end of the energy storage container (1) away from the refrigeration mechanism (6); the air outlet (11) is located at the top center of the end plate of the energy storage container (1) and between two adjacent groups of battery clusters (5); a second exhaust fan (111) and an air outlet valve (112) are installed on the air outlet (11); the air outlet valve (112) is connected to the controller (81) by signal.

8. The energy storage container air duct according to claim 7, characterized in that: The air outlet (11) is distributed obliquely from the inside to the outside, and a second metal protective cover (113) is also installed at the outer end of the air outlet (11).

9. The energy storage container air duct according to claim 1, characterized in that: A two-axis truss manipulator (12) is installed on the top of the energy storage container (1), and a fire extinguishing terminal (121) is installed at the bottom of the output end thereof, and the fire extinguishing terminal (121) is connected to a dry powder fire extinguisher (122) at the end of the energy storage container (1) through a pipeline.

10. An energy storage container (1), characterized in that: The invention comprises an energy storage container (1) air duct (2) as claimed in any one of claims 1 to 9, and also comprises an internal frame (13) and an external baffle plate (14), wherein a battery cluster (5) is installed in the frame (13).

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