Energy storage container air duct and energy storage container with the air duct

Abstract

The application relates to an energy storage container air duct for temperature control and gas circulation in an energy storage container, which is installed on both sides of a battery cluster and comprises an air inlet pipe and an air wall mechanism. The air inlet pipe has a refrigeration mechanism at an air inlet end. The air wall mechanism comprises cooling pipes which are distributed in parallel between the cooling pipes. The air inlet pipe extends from the refrigeration mechanism to the cooling pipes, the diameter of the air inlet pipe gradually increases, branch pipes are arranged on the cooling pipes, and the branch pipes all face the battery cluster. An exhaust assembly comprises strip-shaped grooves which are distributed longitudinally along the air wall mechanism. The branch pipes are connected with exhaust pipes through electrically-controlled three-way valves. The strip-shaped grooves are provided with top covers, the side surfaces of the top covers are connected with the exhaust pipes, and the exhaust pipes are provided with first exhaust fans at outlet ends. Smoke sensors and temperature sensors are connected with a controller in signal connection. The energy storage container air duct designed in the application can accurately identify the lithium battery part which is in thermal runaway and rapidly perform cooling and fire extinguishing, so that the spread 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, in particular to an energy storage container air duct and an energy storage container with the air duct. BACKGROUND

[0002] With the progress of new energy technology and equipment, the quality of clean energy production has been greatly improved, so the utilization rate is also getting higher and higher. In order to further improve the operation efficiency of wind power and photovoltaic power stations, the surplus electricity during the valley period is stored by energy storage devices to supplement the peak period electricity. The container energy storage power station is a high-integration energy storage device, that is, a batch of lead-acid batteries and related electrical control devices are installed in the inner cavity of the container. During the charging and discharging process, the lead-acid battery generates a certain amount of heat. If the heat is not discharged in time in this closed and small space, the working environment of the battery will inevitably deteriorate.

[0003] The prior art promotes the air circulation in the container by configuring an internal air duct, and uses the continuously input external cold air to replace the internal hot air, so as to achieve effective cooling. The air duct used in the prior art is a kind of rectangular cross-section pipe connected in sequence by several different sizes. This kind of stepped and reduced pipe structure is simple and easy to manufacture, and can achieve the purpose of air supply and cooling. However, there is a sudden contraction defect at the connection between the front and rear sections of the pipe. As known from fluid mechanics, the fluid resistance of the pipe with steeply reduced cross-sectional area is large, and the energy loss is high. If there are multiple sudden contractions in the same air duct, there will be a large difference in wind power between the air inlet and outlet of the air duct. Therefore, the air duct of the prior art has the problem of uneven wind power cooling in actual application, thereby causing the supporting lead-acid battery to work under different environmental temperatures. Since the environmental temperature has an influence on the operation of the lead-acid battery, it will inevitably cause performance differences, especially the high temperature easily reduces the cycle service life of the lead-acid battery. SUMMARY

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

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

[0006] The utility model provides an energy storage container air duct for temperature control and gas circulation in energy storage container, air duct is installed in the both sides of a plurality of side by side arrangement battery cluster in energy storage container, including air inlet pipe and side air wall mechanism, wherein air inlet pipe is installed in the end of energy storage container and the air inlet end of air inlet pipe is connected with refrigeration mechanism, air wall mechanism includes a plurality of groups of cooling pipe with air inlet pipe intercommunication, wherein cooling pipe is distributed in parallel between cooling pipe, air inlet pipe extends to cooling pipe by refrigeration mechanism, wherein the diameter of air inlet pipe gradually increases, and the branch pipe for guiding cooling gas to battery cluster is opened on cooling pipe, wherein the branch pipe all faces battery cluster, exhaust component, exhaust component includes strip groove installed in the branch pipe export, wherein strip groove is distributed along the longitudinal direction of air wall mechanism, and the branch pipe is also communicated with exhaust pipe through electrically controlled three -way valve, the top of strip groove is equipped with top cover, wherein the side of top cover is communicated with exhaust pipe through connecting pipe, and the export end of exhaust pipe is equipped with first exhaust fan, monitoring component, monitoring component includes smoke transducer and temperature sensor installed in the top surface of top cover and the side of battery cluster, and smoke transducer and temperature sensor all are connected with the controller signal of energy storage container end, and the controller is also connected with electrically controlled three -way valve and exhaust fan signal.

[0007] By adopting the technical scheme, 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 with the refrigeration mechanism and an air wall mechanism, the air inlet pipe guides the cold air generated by the refrigeration mechanism into the air wall mechanism, the air wall mechanism cools the battery cluster in the energy storage container through the branch pipes opened on the cooling pipes which are distributed in parallel, the cooling gas in the energy storage container is uniformly released from both sides of the energy storage container to cool the battery cluster, and the uniformity of the temperature of the battery cluster in the energy storage container during work is improved. In addition, the exhaust assembly is installed in the air wall mechanism, the exhaust assembly includes the strip-shaped grooves installed at the outlets of the branch pipes and the top covers at the top of the strip-shaped grooves, a plurality of groups of branch pipes distributed longitudinally on the cooling pipes correspond to a single group of strip-shaped grooves and top covers, the strip-shaped grooves and the top covers have two functions, one is to form a sealing structure on the side and top of the energy storage container, and the other is to gather the air at the corresponding position of the single strip-shaped groove and the top cover to the strip-shaped groove for exhaust when the single strip-shaped groove and the top cover are exhausted, so that the high-temperature gas is directed to be discharged, and the spread of high temperature and fire in the adjacent battery cluster or battery module is avoided. The monitoring assembly installed in the energy storage container includes the smoke sensor in the top cover, when the lithium battery in the battery cluster is in thermal runaway, the internal chemical reaction will produce some gas and volatile substances, these substances will first form smoke and be released, and the temperature will be further increased to cause combustion and produce flames, the smoke sensor can detect the thermal runaway condition of the lithium battery as soon as possible, the monitoring assembly further includes the temperature sensors arranged on the side of the battery cluster, the temperature sensors are uniformly distributed and can identify the temperature change condition in a single area, when the smoke sensor and the temperature sensor monitor the abnormal condition in the battery cluster in the energy storage container and feed back to the controller, the controller controls the electrically controlled three-way valve in the air wall mechanism of the corresponding area to close the branch pipe and the cooling pipe, connects the branch pipe and the exhaust pipe, and starts the first exhaust fan on the corresponding exhaust pipe, the gas in the corresponding top cover is also accelerated to be discharged under the action of the first exhaust fan, finally, the air wall mechanism on the side of the normally working battery cluster inputs the cooling gas to the battery cluster, the air wall on the side of the thermal runaway battery cluster discharges the high-temperature gas generated by the thermal runaway battery cluster, and the structure of one-in and one-out can make the imported cooling gas quickly gather to the thermal runaway battery cluster part, cool and control the thermal runaway battery cluster part and discharge the high-temperature gas, and the spread of thermal runaway is avoided.

[0008] Preferably, the branch pipes on the cooling pipe are uniformly distributed along the length direction of the energy storage container, and the outlet of the branch pipe is in communication with the groove bottom surface of the strip-shaped groove, wherein the inner diameter of the branch pipe is the same as the width of the groove bottom of the strip-shaped groove, and the two side surfaces of the strip-shaped groove are outwardly inclined.

[0009] Preferably, the strip-shaped grooves are sealingly connected, and the top and bottom of the strip-shaped grooves are sealingly connected with the top and bottom of the energy storage container.

[0010] Preferably, the air inlet pipe is connected to the two sides and the bottom of the refrigeration mechanism, wherein the air inlet pipes on the two sides are communicated with the air wall mechanism on the side wall of the energy storage container, the air inlet pipe on the bottom is communicated with the cold air duct on the bottom of the energy storage container, the cold air duct is located between the battery clusters in the center of the bottom of the energy storage container, and the cold air duct is provided with air outlets arranged along the length direction of the energy storage container.

[0011] By adopting the above technical scheme, the branch pipes on the cooling pipe are uniformly distributed along the length direction of the energy storage container, the branch pipes can uniformly guide the cooling gas in the cooling pipe to each position on the battery cluster, the strip-shaped grooves at the outlets of the branch pipes are provided with outwardly inclined side surfaces, and the strip-shaped grooves are sealed and connected with each other, so that the cooling gas is diffused into the energy storage container, the battery cluster is uniformly cooled, and when the hot air in the energy storage container is discharged, the hot air is also conveniently gathered to be quickly discharged. The refrigeration mechanism is further provided with an air inlet pipe communicated with the cold air duct on the bottom of the energy storage container, and the air outlets arranged on the cold air duct can meet the cooling demand of the bottom of the side of the battery cluster away from the air wall mechanism, so that the cooling effect of the whole battery cluster is ensured.

[0012] Preferably, the air inlet of the refrigeration mechanism is installed on the 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.

[0013] Preferably, the filter screen is a downwardly inclined filter screen, the side wall of the filter screen is provided with air holes communicated with the dust collection chamber, and the bottom of the filter screen is communicated with the dust collection chamber.

[0014] By adopting the above technical scheme, the first metal protective cover outside the air inlet can prevent large impurities from entering the air inlet of the refrigeration mechanism, the air permeability of the multilayer filter screens of the air inlet of the refrigeration mechanism is sequentially weakened, the impurities filtered out when the air passes through the downwardly inclined dust filter screen can fall into the dust collection chamber at the bottom under the action of gravity and the introduced air, the air entering and the air permeability of the filter screen are weakened, a transverse air pressure is formed, the filtered dust enters the dust collection chamber on the side through the air holes and falls into the dust collection chamber at the bottom, the accumulation of dust is avoided, and the service life of the filter screen is improved.

[0015] Preferably, an air outlet is installed at the top of the 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 the adjacent two groups of battery clusters, a second exhaust fan and an air outlet valve are installed on the air outlet, and the air outlet valve is signal connected with the controller.

[0016] Preferably, the air outlet is inclined from inside to outside, and a second metal protective cover is further installed at the outer end of the air outlet.

[0017] By adopting the technical scheme, the air outlet of the energy storage container is arranged at the top center of one end far from the refrigeration mechanism, the cooling gas introduced by the air wall mechanism and the cooling pipe can be quickly discharged after heat exchange with the battery cluster through the second exhaust fan at the air outlet, the heat exchange efficiency is greatly improved, and the air outlet valve installed at the air outlet is closed when the battery cluster is in thermal runaway, so as to avoid the spread of the thermal runaway electromagnetic cluster along with the air flow. The outwardly inclined air outlet reduces the entry of external water and impurities, and the second metal protective cover installed at the outer end avoids the entry of large impurities to affect the air outlet.

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

[0019] By adopting the technical scheme, the two-axis truss manipulator installed at the top of the energy storage container can move the fire extinguishing end to the corresponding position when the monitoring assembly detects that the specific position of the battery cluster is in thermal runaway, and the dry powder fire extinguisher can be started for fire extinguishing under the control of the controller, so as to avoid the spread of the fire and reduce the loss.

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

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

[0022] 1. The energy storage container is provided with an air wall mechanism on both sides, and the battery cluster is formed into an in-out structure, so that the introduced cooling gas can quickly gather at the part of the battery cluster in thermal runaway, the part of the battery cluster in thermal runaway is cooled and controlled, and the high-temperature gas is discharged, thereby avoiding the spread of thermal runaway;

[0023] 2. The present application is provided with a plurality of layers of filter screens with gradually weakened air permeability at the air inlet of the refrigeration mechanism, and a downwardly inclined dust filter screen and a dust collecting chamber at the bottom are provided to collect the filtered dust, thereby avoiding the accumulation of dust and prolonging the service life of the filter screen;

[0024] 3. The present application is also provided with a fire extinguishing end installed on the two-axis truss manipulator, which can accurately extinguish the part in thermal runaway under the control of the controller, thereby avoiding the spread of the fire and reducing the loss. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic view of the air outlet side structure of an energy storage container air duct and an energy storage container with the air duct;

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

[0027] Figure 3 It is a schematic view of the air inlet side structure of the energy storage container and the energy storage container with the air duct;

[0028] Figure 4 It is a schematic view of the overall structure of the energy storage container and the energy storage container with the air duct without the top cover and the connecting pipe;

[0029] Figure 5 It is Figure 4 Enlarged view of B in the middle;

[0030] Figure 6 It is a schematic view of the structure of the energy storage container and the energy storage container with the air duct without the top cover, the connecting pipe and one side of the air wall and the battery cluster;

[0031] Figure 7 It is an exploded view of the air inlet of the energy storage container and the energy storage container with the air duct;

[0032] Figure 8 It is Figure 7 Enlarged view of the air inlet.

[0033] Marked for explanation: 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, fence plate; 2, air duct; 3, air inlet pipe; 31, cold air pipe; 311, air outlet; 4, air wall mechanism; 41, cooling pipe; 411, branch pipe; 412, electric control three-way valve; 5, battery cluster; 6, refrigeration mechanism; 61, air inlet; 611, first metal protective cover; 612, filter screen; 6121, air hole; 613, dust collection chamber; 7, exhaust assembly; 71, strip-shaped groove; 72, exhaust pipe; 721, first exhaust fan; 73, top cover; 731, connecting pipe; 8, monitoring assembly; 81, controller. DETAILED DESCRIPTION

[0034] The following will be combined with the Figures 1-8 Further detailed description of the present application.

[0035] Example 1

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

[0037] Refer to Figures 1-8The utility model provides an energy storage container air duct 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 side -by -side arranged battery clusters 5 in the energy storage container 1, including air inlet pipe 3 and side air wall mechanism 4, wherein air inlet pipe 3 is installed at the end of energy storage container 1 and the air inlet end of air inlet pipe 3 is connected with refrigeration mechanism 6, air wall mechanism 4 includes a plurality of groups of cooling pipe 41 that are communicated with air inlet pipe 3, wherein the cooling pipe 41 is distributed in parallel between the cooling pipe 41, air inlet pipe 3 extends to cooling pipe 41 by refrigeration mechanism 6, wherein the diameter of air inlet pipe 3 gradually increases, and the branch pipe 411 for leading out cooling gas to the battery cluster 5 is formed on the cooling pipe 41, wherein the branch pipe 411 is all towards the battery cluster 5, exhaust assembly 7, exhaust assembly 7 includes strip-shaped recess 71 installed at the outlet of branch pipe 411, wherein strip-shaped recess 71 is longitudinally distributed along air wall mechanism 4, and branch pipe 411 is also communicated with exhaust pipe 72 by electrically-controlled three-way valve 412, and the top of strip-shaped recess 71 is provided with top cover 73, wherein the side of top cover 73 is communicated with exhaust pipe 72 through connecting pipe 731, and the outlet end of exhaust pipe 72 is provided with first exhaust fan 721, monitoring assembly 8, monitoring assembly 8 includes smoke sensor installed on the top surface of top cover 73 and temperature sensor on the side of battery cluster 5, and the smoke sensor and temperature sensor are all signal connected with the controller 81 at the end of energy storage container 1, and the controller 81 is also signal connected with electrically-controlled three-way valve 412 and exhaust fan. 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, and the air duct 2 is composed of the air inlet pipe 3 connected with the refrigeration mechanism 6 and the air wall mechanism 4, the air inlet pipe 3 leads the cold air generated by the refrigeration mechanism 6 into the air wall mechanism 4, and the air wall mechanism 4 is cooled to the battery cluster 5 in the energy storage container 1 by the branch pipe 411 formed on the parallelly distributed cooling pipe 41, so that the battery cluster 5 in the energy storage container 1 is uniformly cooled by releasing the cooling gas from both sides of the energy storage container 1, and the uniformity of the temperature of the battery cluster 5 in the energy storage container 1 during work is improved. And the exhaust assembly 7 is also installed in the air wall mechanism 4, the exhaust assembly 7 includes the strip-shaped recess 71 installed at the outlet of the branch pipe 411 and the top cover 73 on the top of the strip-shaped recess 71, wherein the plurality of groups of branch pipes 411 longitudinally distributed on the cooling pipe 41 correspond to a group of strip-shaped recesses 71 and top covers 73, and the strip-shaped recess 71 and the top cover 73 can form a sealing structure on the side and top of the energy storage container 1, and the strip-shaped recess 71 and the top cover 73 can also gather the air at the corresponding position to the strip-shaped recess 71 and the top cover 73 during exhaust, so that the high-temperature gas is directed to be discharged, and the spread of high temperature and fire in the adjacent battery cluster 5 or battery module is avoided.The monitoring assembly 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 experiences thermal runaway, the internal chemical reaction will produce some gas and volatile substances, which will first form smoke and release, and then cause combustion and produce flames as the temperature further rises. The smoke sensor can detect the thermal runaway condition of the lithium battery as early as possible. The monitoring assembly 8 also includes temperature sensors arranged on the side of the battery cluster 5. The temperature sensors are uniformly distributed and can identify temperature changes in a single area. When the smoke sensor and the temperature sensor monitor abnormal conditions inside the battery cluster in the energy storage container 1 and feed back to the controller 81, the controller 81 controls the electrically controlled three-way valve 412 in the air wall mechanism 4 corresponding to the area to close the branch pipe 411 and the cooling pipe 41, connect the branch pipe 411 and 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 and discharged. Finally, the normally working air wall mechanism 4 on the side of the battery cluster 5 inputs cooling gas to the battery cluster 5. The air wall on the side of the thermal runaway battery cluster 5 guides the high-temperature gas generated by the thermal runaway battery cluster 5 out of the structure, which forms a one-in-one-out structure that allows the incoming cooling gas to quickly gather in the thermal runaway battery cluster 5 part, cools and controls the thermal runaway battery cluster 5 part, and discharges the high-temperature gas, preventing the spread of thermal runaway.

[0038] Referring to 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 communicated with the groove bottom surfaces of the strip-shaped grooves 71, wherein the inner diameter of the branch pipes 411 is the same as the width of the groove bottom of the strip-shaped grooves 71, and the two side surfaces of the strip-shaped grooves 71 are outwardly inclined. The strip-shaped grooves 71 are sealingly connected, and the top and bottom of the strip-shaped grooves 71 are sealingly connected with the top and bottom of the energy storage container 1. The air inlet pipes 3 are connected on both sides and the bottom of the refrigeration mechanism 6, wherein the air inlet pipes 3 on both sides are communicated with the air wall mechanism 4 on the side wall of the energy storage container 1, and the air inlet pipe 3 on the bottom is communicated with the cold air pipe 31 on the bottom of the energy storage container 1, the cold air pipe 31 is located between the battery clusters 5 in the center of the bottom of the energy storage container 1, and the cold air pipe 31 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 uniformly guide the cooling gas in the cooling pipe 41 to each position on the battery cluster 5, and the strip-shaped grooves 71 at the outlets of the branch pipes 411 are provided with outwardly inclined side surfaces, and the strip-shaped grooves 71 are sealingly connected with each other, which facilitates the diffusion of cooling gas into the energy storage container 1, realizes the relatively uniform cooling of the battery cluster 5, and facilitates the gathering of hot air for rapid discharge when the hot air in the energy storage container 1 is discharged. The air inlet pipe 3 communicated with the cold air pipe 31 on the bottom of the energy storage container 1 is also installed on the bottom of the refrigeration mechanism 6, and the air outlets 311 distributed on the cold air pipe 31 can meet the cooling demand of the bottom of the side of the battery cluster 5 away from the air wall mechanism 4, and ensure the overall cooling effect of the battery cluster 5.

[0039] Referring to 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. A dust and sand prevention mechanism is installed on the air inlet 61, including a plurality of levels of filter screens 612 arranged in the air inlet 61 in sequence, wherein the two sides and the bottom of the plurality of levels of filter screens 612 are provided with dust collection chambers 613, and the air permeability of the plurality of levels of filter screens 612 decreases in sequence from the outside to the inside. The filter screen 612 adopts a downwardly inclined filter screen 612, and the sidewall of the filter screen 612 is provided with air holes 6121 communicating with the dust collection chamber 613, and the bottom of the filter screen 612 communicates with the dust collection chamber 613. The first metal protective cover 611 outside the air inlet 61 can prevent large impurities from entering and affecting the air inlet of the refrigeration mechanism 6. The air permeability of the multiple layers of filter screens 612 of the air inlet 61 of the refrigeration mechanism 6 decreases in sequence, and the impurities filtered out when the air passes through the downwardly inclined dust filter screen 612 can fall into the bottom dust collection chamber 613 under the action of gravity and the introduced air. The air entering and the air permeability decreasing when passing through the filter screen 612 form a transverse air pressure, and the filtered dust enters the side dust collection chamber 613 through the air holes 6121 and falls into the bottom dust collection chamber 613, avoiding dust accumulation and improving the service life of the filter screen 612.

[0040] Referring to Figure 1 , Figure 4 and Figure 6 , the air outlet 11 is installed at the top of the end of the energy storage container 1 away from the refrigeration mechanism 6, and is located at the top center of the end plate of the energy storage container 1 and between the 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, and the air outlet valve 112 is signal connected with the controller 81. The air outlet 11 is inclined from the inside to the outside, and a second metal protective cover 113 is installed at the outer end of the air outlet 11. The air outlet 11 of the energy storage container 1 is arranged at the top center of the end away from the refrigeration mechanism 6, and the second exhaust fan 111 at the air outlet 11 can quickly guide out the cooling gas after heat exchange with the battery cluster 5 introduced by the air wall mechanism 4 and the cold air pipe 31, greatly improving the heat exchange efficiency. The air outlet valve 112 installed at the air outlet 11 is closed when the battery cluster 5 is in thermal runaway, avoiding the spread of the thermal runaway electromagnetic cluster with the flow of air. The outwardly inclined air outlet 11 reduces the entry of external water and impurities, and the second metal protective cover 113 installed at the outer end avoids the entry of large impurities affecting the air outlet.

[0041] Referring to Figure 1 , Figure 4 and Figure 6The two-axis truss manipulator 12 installed on the top of the energy storage container 1 has a fire extinguishing end 121 installed at the bottom of the output end, and the fire extinguishing end 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 end 121 to the corresponding position when the specific position of the battery cluster 5 is found to have thermal runaway by the monitoring assembly 8, and start the dry powder fire extinguisher 122 to extinguish the fire under the control of the controller 81, so as to avoid the spread of the fire and achieve precise fire extinguishing and reduce the loss.

[0042] Embodiment 2

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

[0044] An energy storage container 1 comprises an air duct 2 of the energy storage container 1, and further comprises an internal frame 13 and an external fence plate 14, and the frame 13 is internally provided with a battery cluster 5.

[0045] Working principle: first, the refrigeration mechanism 6 through the air inlet 61 into the air filtered through the multi-layer filter screen 612, form cooling air through the two sides and the bottom of the air inlet pipe 3 into the air wall mechanism 4 and cold air duct 31, wherein the air wall mechanism 4 through the parallel distribution of several groups of cooling pipe 41 on the branch pipe 411 cooling gas export, the side of the battery cluster 5 cooling, cooling pipe 41 way through the air outlet 311 along the length of the energy storage container 1 distribution of cooling gas from the bottom export to the battery cluster 5 away from the air wall mechanism 4 of one side cooling, then the cooling gas and battery cluster 5 heat exchange under the action of the second exhaust fan 111 through the air outlet 11 export hot air. When the battery cluster 5 in the energy storage container 1 in the part of the thermal runaway, the uniform distribution of temperature sensor can identify the temperature change in a single area, while the smoke sensor can identify the smoke generated by the thermal runaway of lithium battery, accurate positioning of the point of lithium battery thermal runaway in the energy storage container 1, and then feedback to the controller 81, the controller 81 control corresponding area of the air wall mechanism 4 in the electric control three way valve 412 between the branch pipe 411 and cooling pipe 41 closed, the branch pipe 411 and exhaust pipe 72, and start the corresponding exhaust pipe 72 on the first exhaust fan 721, under the action of the first exhaust fan 721, the gas in the corresponding top cover 73 is also accelerated export, eventually form the normal working battery cluster 5 side of the air wall mechanism 4 input cooling gas for battery cluster 5, the thermal runaway of battery cluster 5 side of the air wall will be the high temperature gas generated by the thermal runaway of battery cluster 5 export, form a one-way structure can let the cooling gas imported quickly gather to the thermal runaway of battery cluster 5 part, cooling control and export high temperature gas of the thermal runaway of battery cluster 5 part. At the same time, the two axis truss mechanical hand 12 installed on the top of the energy storage container 1 can be moved to the corresponding place when the monitoring assembly 8 monitors the specific position of the battery cluster 5 thermal runaway, under the control of the controller 81, start the dry powder extinguisher 122 to extinguish the fire.

[0046] The above are the preferred embodiments of the present application, not limited by the protection scope of the present application, therefore: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

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

2. An energy storage container air duct according to claim 1, wherein: The branch pipes (411) on the cooling pipes (41) are evenly distributed along the length direction of the energy storage container (1), and the outlets of the branch pipes (411) are in communication with the groove 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 groove bottom of the strip-shaped groove (71), and the two side surfaces of the strip-shaped groove (71) are outwardly inclined.

3. An energy storage container air duct according to claim 2, wherein: The strip-shaped grooves (71) are sealingly connected, and the top and bottom of the strip-shaped grooves (71) are sealingly connected with the top and bottom of the energy storage container (1).

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

5. An energy storage container air duct according to claim 1, wherein: The 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 the air inlet (61) is provided with a dust and sand prevention mechanism, which comprises a plurality of filter screens (612) arranged in the air inlet (61) in sequence, wherein the two sides and the bottom of the plurality of filter screens (612) are provided with dust collection chambers (613), and the air permeability of the plurality of filter screens (612) decreases from outside to inside in sequence.

6. An energy storage container air duct according to claim 5, wherein: The filter screen (612) adopts a downwardly inclined filter screen (612), and the side wall of the filter screen (612) is provided with air holes (6121) communicating with the dust collection chamber (613), and the bottom of the filter screen (612) communicates with the dust collection chamber (613).

7. An energy storage container air duct according to claim 1, wherein: 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 the two adjacent groups of battery clusters (5), and 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 signal connected with the controller (81).

8. An energy storage container air duct according to claim 7, wherein: The air outlet (11) is inclined from inside to outside, and the outer end of the air outlet (11) is further provided with a second metal protective cover (113).

9. An energy storage container air duct according to claim 1, wherein: The energy storage container (1) is provided with a two-axis truss mechanical arm (12) at the top, and the output end of the two-axis truss mechanical arm (12) is provided with a fire extinguishing end (121), and the fire extinguishing end (121) is connected with 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 by, The energy storage container (1) of any one of claims 1-9 further comprises an internal frame (13) and an external fence plate (14), and the frame (13) is provided with a battery cluster (5).

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