Fire-fighting device for safety control of energy storage battery unit

Abstract

The utility model belongs to a fire-fighting safety management and control device in the technical field of energy storage industry, and particularly discloses a fire-fighting device for safety management and control of an energy storage battery unit. According to the fire-fighting device for safety management and control of the energy storage battery unit, the exhaust port is used for being communicated with the equipment air inlet of the equipment to be detected, the air inlet is used for being communicated with the equipment exhaust port of the equipment to be detected, gas in the equipment to be detected enters the gas detection assembly through the air inlet of the fire-fighting device, and the gas detection assembly detects components of the gas; the detection cavity, the isolation cavity and the dehumidification cavity which are independently arranged are arranged in the shell, wet gas in the detection cavity and the isolation cavity is prevented from being mixed with dry gas in the dehumidification cavity, and it is guaranteed that the gas exhausted after treatment in the dehumidification cavity is the dry gas; the fire-fighting device provided by the utility model integrates the functions of dehumidification, gas detection and gas extinguishing medium spraying, so that the functions of the fire-fighting device are diversified, the integration level of the functions of the fire-fighting device is improved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a fire safety control device in the technical field of energy storage industry, in particular to a fire-fighting device for safety control of energy storage battery units. Background Art

[0002] In view of the technical problems that it is difficult to increase the single-machine capacity of battery energy storage equipment and the increase in the capacity of the battery energy storage system causes overcharging, overheating, and increased cycle loss, resulting in thermal runaway, a fire safety control device has emerged. This fire safety control device is a fire-fighting device for safety control of energy storage battery units. Existing fire-fighting devices usually can only perform a single gas detection or fire extinguishing function and cannot meet the requirements of gas detection, dehumidification, and release of fire extinguishing medium at the same time. In addition, dehumidification is required in many application industries. For example, in the energy storage industry, in a liquid-cooled energy storage system, condensate often appears and needs to be removed to ensure the dryness of the energy storage equipment. In the prior art, dehumidification, gas detection, and release of fire extinguishing medium are all completed by separate devices. The functions of each device are too single, resulting in waste of resources, low working efficiency of each device, low integration degree of the entire fire-fighting system, prone to failures, and reduced service life of the equipment.

[0003] Therefore, there is an urgent need to provide a fire-fighting device for safety control of energy storage battery units to solve the above technical problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a fire-fighting device for safety control of energy storage battery units, which integrates the functions of dehumidification, gas detection, and release of fire extinguishing medium, diversifies the functions of the fire-fighting device, improves the integration degree of the functions of the fire-fighting device, and improves the working efficiency.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A fire-fighting device for safety control of energy storage battery units, comprising:

[0007] A housing, inside which a detection cavity, an isolation cavity, and a dehumidification cavity are provided. An air inlet and a fire extinguishing medium input port are provided on the cavity wall of the detection cavity. An exhaust port is provided on the cavity wall of the dehumidification cavity. The fire extinguishing medium input port is selectively communicated with the air inlet, and the fire extinguishing medium input port is used to connect to a fire extinguishing medium source;

[0008] A gas detection assembly, arranged inside the detection cavity. The gas inlet of the gas detection assembly is communicated with the air inlet, and the gas outlet of the gas detection assembly is communicated with the isolation cavity. The gas detection assembly is used to allow gas to enter the gas detection assembly through the air inlet and detect the gas components;

[0009] A dehumidification component is arranged in the dehumidification cavity and is used for drying gas. The gas inlet of the dehumidification component is connected with the isolation cavity. The dehumidification component can allow the gas in the isolation cavity to enter the dehumidification component.

[0010] As an optional technical solution of the fire-fighting device for safety management of the energy storage battery unit, the detection cavity and the dehumidification cavity are arranged in parallel in the first direction, and the isolation cavity and the dehumidification cavity are arranged in parallel in the second direction;

[0011] The air inlet and the gas extinguishing medium input port are arranged on two opposite cavity walls of the detection cavity;

[0012] The exhaust port is arranged on a cavity wall of the dehumidification cavity on a side away from the isolation cavity.

[0013] As an optional technical solution of the fire-fighting device for safety management of the above-mentioned energy storage battery unit, the air inlet is arranged on the cavity wall on the same side of the detection cavity and the exhaust port.

[0014] As an optional technical solution for the fire-fighting device for safety control of the above-mentioned energy storage battery unit, the gas detection component includes an air suction pump and a gas detector. The gas inlet of the air suction pump is connected to the air inlet through a first pipeline, the gas outlet of the air suction pump is connected to the gas detector, and the gas outlet of the gas detector is connected to the isolation cavity. The air suction pump is used to allow gas to enter the gas detector through the air inlet, and the gas detector is used to detect gas composition.

[0015] As an optional technical solution for the fire-fighting device for safety control of the above-mentioned energy storage battery unit, a first control valve is arranged on the first pipeline, and the first control valve is configured to be opened when the suction pump is working, and to be closed when the gas extinguishing medium input port is connected to the air inlet.

[0016] As an optional technical solution for the fire-fighting device for safety control of the above-mentioned energy storage battery unit, a enclosure is provided in the detection cavity, and the enclosure and the cavity wall of the detection cavity are arranged to form a accommodating cavity. The gas detector is arranged in the accommodating cavity, and an opening is provided on one side wall of the accommodating cavity. The gas outlet of the suction pump is arranged opposite to the opening, and the isolation cavity is connected to the accommodating cavity.

[0017] As an optional technical solution for the fire-fighting device for safety control of the above-mentioned energy storage battery unit, the cavity wall of the accommodating cavity is provided with a first connecting joint, and the cavity wall of the isolation cavity is provided with a second connecting joint, and the second connecting joint is connected to the first connecting joint through a second pipeline.

[0018] As an alternative technical solution of the fire-fighting device for the safety control of the energy storage battery unit described above, the enclosure is of a U-shaped structure. The two ends of the enclosure are respectively connected to the cavity wall of the detection cavity, and an accommodation cavity with two open ends is formed. A first mounting rack is arranged in the accommodation cavity. One end of the first mounting rack passes through the opening of the accommodation cavity, and one end of the first mounting rack is connected to the cavity wall of the detection cavity. The gas detector is connected to the first mounting rack.

[0019] As an alternative technical solution of the fire-fighting device for the safety control of the energy storage battery unit described above, a tee is arranged in the detection cavity. The first joint of the tee is connected to the air inlet, the second joint of the tee is connected to the gas inlet of the gas detection component, and the third joint of the tee is connected to the gas extinguishing medium input port. A second control valve is arranged between the third joint and the gas extinguishing medium input port, and the second control valve is configured to selectively connect the gas extinguishing medium input port and the tee.

[0020] As an alternative technical solution of the fire-fighting device for the safety control of the energy storage battery unit described above, a drain port is arranged on the cavity wall of the dehumidification cavity. The dehumidification component includes a dehumidifier. The dehumidifier has an air suction port, a condensed water outlet, and a dry gas discharge port. The air suction port is connected to an air suction fan. The air suction fan is placed in the isolation cavity. The air suction fan is used to suck the gas in the isolation cavity into the dehumidifier. The dehumidifier is used to dry the gas. The condensed water outlet is connected to the drain port through a drain pipe. The dry gas discharge port is communicated with the dehumidification cavity.

[0021] The beneficial effects of the present utility model:

[0022] The fire-fighting device for the safety control of the energy storage battery unit provided by the present utility model has an exhaust port for communicating with the equipment intake port of the equipment to be inspected, and an intake port for communicating with the equipment exhaust port of the equipment to be inspected. The gas in the equipment to be inspected enters the gas detection component through the intake port of the fire-fighting device. The gas detection component detects the composition of the gas. If the gas composition meets the requirements, the gas enters the isolation cavity, and the isolation cavity plays a role in buffering and transitioning the gas. Then the gas enters the dehumidification cavity, and is dried by the dehumidification component to form dry gas. The dry gas enters the equipment to be inspected through the exhaust port of the fire-fighting device. If the gas composition does not meet the requirements, the gas extinguishing medium input port is communicated with the intake port, and the gas extinguishing medium source provides the gas extinguishing medium. The gas extinguishing medium enters the externally connected equipment to be inspected through the intake port for fire extinguishing operation. At this time, the gas in the equipment to be inspected no longer enters the gas detection component. The gas extinguishing medium enters the equipment to be inspected and shares an intake port with the exhaust gas from the equipment to be inspected into the fire-fighting device, which simplifies the structure of the fire-fighting device. There are independently arranged detection cavity, isolation cavity and dehumidification cavity in the housing, which avoids the mixing of wet gas in the detection cavity and isolation cavity with the dry gas in the dehumidification cavity, and ensures that the gas discharged after treatment in the dehumidification cavity is dry gas. The fire-fighting device provided by the present utility model integrates the functions of dehumidification, gas detection and gas extinguishing medium spraying, diversifies the functions of the fire-fighting device, improves the integration degree of the functions of the fire-fighting device, and improves the working efficiency. Brief Description of the Drawings

[0023] Figure 1 is the overall structural schematic diagram of the fire-fighting device for the safety control of the energy storage battery unit provided by the embodiment of the present utility model;

[0024] Figure 2 is the first internal structural schematic diagram of the fire-fighting device for the safety control of the energy storage battery unit provided by the embodiment of the present utility model;

[0025] Figure 3 is the second internal structural schematic diagram of the fire-fighting device for the safety control of the energy storage battery unit provided by the embodiment of the present utility model;

[0026] Figure 4 is the third internal structural schematic diagram of the fire-fighting device for the safety control of the energy storage battery unit provided by the embodiment of the present utility model.

[0027] In the figure:

[0028] 1. Housing; 2. Intake port; 3. Gas extinguishing medium input port; 4. Exhaust port; 5. Drain port; 6. Gas detection component; 7. Dehumidification component;

[0029] 11. Detection cavity; 12. Isolation cavity; 13. Dehumidification cavity; 14. Housing body; 15. Housing cover;

[0030] 61. Suction pump; 62. Gas detector; 63. First pipeline; 64. First control valve; 65. Enclosure; 66. First connection joint; 67. Second connection joint; 68. Second pipeline; 69. First mounting bracket; 610. Three-way pipe; 611. Second control valve;

[0031] 71. Dehumidifier; 72. Exhaust fan; 73. Condensate outlet; 74. Dry gas outlet. Detailed implementation manner

[0032] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that, for the sake of description, only the parts related to the present utility model are shown in the drawings, rather than all the structures.

[0033] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0034] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is lower than that of the second feature.

[0035] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0036] Such as Figure 1 And Figure 2As shown in the figure, this embodiment provides a fire-fighting device for the safety control of an energy storage battery unit. The fire-fighting device for the safety control of an energy storage battery unit includes a housing 1, a gas detection component 6, and a dehumidification component 7. A detection cavity 11, an isolation cavity 12, and a dehumidification cavity 13 are provided inside the housing 1. An air inlet 2 and a gas extinguishing medium input port 3 are provided on the cavity wall of the detection cavity 11. An exhaust port 4 is provided on the cavity wall of the dehumidification cavity 13. The gas extinguishing medium input port 3 and the air inlet 2 can be selectively communicated. The gas extinguishing medium input port 3 is used to connect to a gas extinguishing medium source. A gas detection component 6 is provided inside the detection cavity 11. The gas inlet of the gas detection component 6 is communicated with the air inlet 2, and the gas outlet of the gas detection component 6 is communicated with the isolation cavity 12. The gas detection component 6 is used to allow gas to enter the gas detection component 6 through the air inlet 2 and detect the gas components. A dehumidification component 7 is provided inside the dehumidification cavity 13. The dehumidification component 7 is used to dry the gas. The gas inlet of the dehumidification component 7 is communicated with the isolation cavity 12. The dehumidification component 7 can allow the gas in the isolation cavity 12 to enter the dehumidification component 7.

[0037] In practical applications, the exhaust port 4 of the fire-fighting device is used to communicate with the equipment air inlet of the equipment to be inspected, and the air inlet 2 is used to communicate with the equipment exhaust port of the equipment to be inspected. The gas in the equipment to be inspected enters the gas detection component 6 through the air inlet 2 of the fire-fighting device. The gas detection component 6 detects the components of the gas. If the gas components meet the requirements, the gas enters the isolation cavity 12. The isolation cavity 12 plays a role in gas buffer and transition. Then the gas enters the dehumidification cavity 13 and is dried by the dehumidification component 7 to form dry gas. The dry gas enters the equipment to be inspected through the exhaust port 4 of the fire-fighting device. If the gas components do not meet the requirements, the gas extinguishing medium input port 3 is communicated with the air inlet 2, and the gas extinguishing medium source provides the gas extinguishing medium. The gas extinguishing medium enters the externally connected equipment to be inspected through the air inlet 2 for fire extinguishing operations. At this time, the gas in the equipment to be inspected no longer enters the gas detection component 6. The gas extinguishing medium enters the equipment to be inspected and shares the same air inlet 2 with the exhaust gas of the equipment to be inspected to the fire-fighting device, which simplifies the structure of the fire-fighting device. There are independently provided detection cavity 11, isolation cavity 12, and dehumidification cavity 13 inside the housing 1, which avoids the mixing of wet gas in the detection cavity 11 and isolation cavity 12 with the dry gas in the dehumidification cavity 13, ensuring that the gas discharged after being processed in the dehumidification cavity 13 is dry gas. The fire-fighting device provided in this embodiment integrates the functions of dehumidification, gas detection, and gas extinguishing medium spraying, making the functions of the fire-fighting device diversified, improving the integration degree of the functions of the fire-fighting device, and improving the working efficiency.

[0038] The above-mentioned equipment to be inspected can be an energy storage device, such as a battery module box. The battery module box is provided with an equipment air inlet and an equipment exhaust port. The equipment air inlet is connected to the exhaust port 4 of the fire-fighting device, and the equipment exhaust port is connected to the air inlet 2 of the fire-fighting device, which facilitates the connection of the fire-fighting device and the equipment to be inspected during testing.

[0039] The detection cavity 11, the dehumidification cavity 13, and the isolation cavity 12 are separate cavities. To accommodate the volumes of the gas detection component 6 and the dehumidification component 7, no other components need to be installed in the isolation cavity 12. Therefore, the volume of the detection cavity 11 needs to be greater than the volume of the dehumidification cavity 13, and the volume of the dehumidification cavity 13 needs to be greater than the volume of the isolation cavity 12. To reasonably arrange the distribution positions of the detection cavity 11, the dehumidification cavity 13, and the isolation cavity 12 within the housing 1, the detection cavity 11 and the dehumidification cavity 13 are arranged side by side in the first direction, and the isolation cavity 12 and the dehumidification cavity 13 are arranged side by side in the second direction. The first direction is the length direction of the housing 1, and the second direction is the width direction of the housing 1 to meet the requirements for the volume of the detection cavity 11. Further explanation is needed that to make full use of the space within the housing 1, the sum of the dimensions of the dehumidification cavity 13 and the detection cavity 11 in the first direction is equal to the length of the housing 1, the dimension of the detection cavity 11 in the second direction is equal to the width of the housing 1, and the sum of the dimensions of the dehumidification cavity 13 and the isolation cavity 12 in the second direction is equal to the width of the housing 1, that is, the space within the housing 1 is divided into three parts.

[0040] The gas extinguishing medium source is used to provide the gas extinguishing medium for fire extinguishing. To facilitate the external reception of the equipment to be inspected and the gas extinguishing medium source of the fire protection device, the air inlet 2 and the gas extinguishing medium input port 3 are arranged on two opposite cavity walls of the detection cavity 11. The exhaust port 4 is arranged on the cavity wall of the dehumidification cavity 13 on the side facing away from the isolation cavity 12.

[0041] When installing the equipment to be inspected and the gas extinguishing medium source to avoid interference between the two, the air inlet 2 is arranged on the cavity wall of the detection cavity 11 on the same side as the exhaust port 4. In actual application, the equipment to be inspected can be arranged on the side of the fire protection device where the exhaust port 4 and the air inlet 2 are provided, and the gas extinguishing medium source is arranged on the other side of the fire protection device.

[0042] Optionally, the housing 1 includes a housing body 14 and a housing cover 15. The housing body 14 is a cavity with an opening on one side, and the housing cover 15 is fastened to the housing body 14 to close the cavity. The cavity is divided into a detection cavity 11, an isolation cavity 12, and a dehumidification cavity 13, and the housing cover 15 is detachably connected to the housing body 14. Exemplarily, the housing cover 15 is detachably connected to the housing body 14 through a snap structure, or the housing cover 15 is detachably connected to the housing body 14 through bolts and nuts, or the housing cover 15 is fastened to the housing body 14, and the edge of the housing cover 15 is fixedly connected to the outer surface of the housing body 14 by friction and can be detached from the housing body 14 under the action of an external force to overcome the friction between the two. The air inlet 2, the gas extinguishing medium input port 3, and the exhaust port 4 are arranged on the circumferential side wall of the housing body 14.

[0043] The gas detection component 6 is used to allow gas to enter the gas detection component 6 through the air inlet 2 and detect the gas components. In some embodiments, the gas detection component 6 includes a suction pump 61 and a gas detector 62. The gas inlet of the suction pump 61 is connected to the air inlet 2 through a first pipeline 63. The gas outlet of the suction pump 61 is communicated with the gas detector 62. The gas outlet of the gas detector 62 is communicated with the isolation cavity 12. The suction pump 61 is used to allow gas to enter the gas detector 62 through the air inlet 2, and the gas detector 62 is used to detect the gas components. The suction pump 61 provides power for the gas to enter the detection cavity 11 and flow inside the detection cavity 11. When the gas components detected by the gas detector 62 do not meet the requirements, the suction pump 61 stops sucking. At this time, the fire extinguishing medium input port 3 and the air inlet 2 are communicated, and the fire extinguishing medium enters the equipment to be inspected through the fire extinguishing medium input port 3 and the air inlet 2 for fire extinguishing. When the gas detected by the gas detector 62 contains flammable gases such as CO and methane, it indicates that the gas components do not meet the requirements.

[0044] Optionally, in order to ensure that the fire extinguishing medium does not flow to the suction pump 61 during the process of entering the equipment to be inspected, a first control valve 64 is provided on the first pipeline 63. The first control valve 64 is configured to be opened when the suction pump 61 is working, and to be closed when the fire extinguishing medium input port 3 is communicated with the air inlet 2. Further optionally, the first control valve 64 is a low-leakage high-sealing valve. The low-leakage high-sealing valve is configured to be opened when the suction pump 61 is working. When the fire extinguishing medium enters, the high air pressure of the fire extinguishing medium will cause the low-leakage high-pressure valve to close, thereby blocking the first pipeline 63 and preventing the fire extinguishing medium from entering the suction pump 61, ensuring that the fire extinguishing medium enters the equipment to be inspected, and controlling the on-off of the low-leakage high-pressure valve through air pressure without electric control, which simplifies the control method of the fire protection device. In some other embodiments, the first control valve 64 can be an electromagnetic valve, etc., which is not specifically limited herein. The above-mentioned suction pump 61 and gas detector 62 are both prior arts, and their specific structures are not specifically described herein.

[0045] In some embodiments, a baffle 65 is provided in the detection cavity 11. The baffle 65 and the cavity wall of the detection cavity 11 enclose to form a receiving cavity. The gas detector 62 is arranged in the receiving cavity. An opening is provided on one side cavity wall of the receiving cavity. The gas outlet of the suction pump 61 is arranged opposite to the opening. The gas inhaled by the suction pump 61 is sprayed into the receiving cavity through the opening. The gas detector 62 detects the gas in the receiving cavity. The isolation cavity 12 is communicated with the receiving cavity. While the gas detector 62 detects the gas, the gas in the receiving cavity flows to the isolation cavity 12. The purpose of setting the baffle 65 to form the receiving cavity is to enable the gas to gather in the receiving cavity briefly for the gas detector 62 to detect, thereby improving the accuracy of the gas detector 62 in detecting the gas components.

[0046] Further optionally, the shroud 65 is of a U-shaped structure. The two ends of the shroud 65 are respectively connected to the cavity wall of the detection cavity 11, and an accommodating cavity with two open ends is formed. A first mounting bracket 69 is provided in the accommodating cavity. One end of the first mounting bracket 69 passes through the opening of the accommodating cavity, and one end of the first mounting bracket 69 is connected to the cavity wall of the detection cavity 11. The gas detector 62 is connected to the first mounting bracket 69. Since the gas only accumulates in the accommodating cavity temporarily and the gas components in the detection cavity 11 are the same, there is no need to deliberately separate the gas. Therefore, the structure of the shroud 65 can be simplified, and further the connection structure between the shroud 65 and the cavity wall of the detection cavity 11 can be simplified. The shroud 65 is set to a U-shaped structure, which can play the role of temporarily accumulating the gas, without the need to form a closed space, and the gas in the detection cavity 11 will all flow to the isolation cavity 12. In addition, the setting of the first mounting bracket 69 provides a supporting force for fixing the gas detector 62 to ensure the stability of the installation of the gas detector 62.

[0047] As Figure 3 and Figure 4 shown, a communication channel is provided between the isolation cavity 12 and the detection cavity 11 to ensure that the gas can enter the isolation cavity 12 orderly. In some embodiments, a first connection joint 66 is provided on the cavity wall of the accommodating cavity, and a second connection joint 67 is provided on the cavity wall of the isolation cavity 12. The second connection joint 67 is connected to the first connection joint 66 through a second pipeline 68. The first connection joint 66, the second pipeline 68 and the second connection joint 67 form a communication channel. The reason why the second pipeline 68 is communicated with the accommodating cavity through the first connection joint 66 is that the gas volume in the accommodating cavity is large, and under the impact of the exhaust of the suction pump 61, it provides power for the gas in the accommodating cavity to enter the isolation cavity 12 through the second pipeline 68.

[0048] Further optionally, both the first connection joint 66 and the second connection joint 67 are pneumatic quick connectors, which are convenient for connecting with the second pipeline 68 to achieve the rapid assembly of the fire-fighting device.

[0049] The gas inlet of the gas extinguishing medium input port 3 and the gas detection component 6 are respectively connected to the air inlet 2. To achieve the connection of the three, a tee pipe 610 is arranged in the detection cavity 11. The first joint of the tee pipe 610 is connected to the air inlet 2, the second joint of the tee pipe 610 is connected to the gas inlet of the gas detection component 6, and the third joint of the tee pipe 610 is connected to the gas extinguishing medium input port 3. A second control valve 611 is arranged between the third joint and the gas extinguishing medium input port 3. The second control valve 611 is configured to selectively connect the gas extinguishing medium input port 3 and the tee pipe 610, thereby achieving the selective connection of the gas extinguishing medium input port 3 and the air inlet 2. The connection structure is simple and can achieve the connection of two paths. Optionally, both ends of the first straight pipe portion of the tee pipe 610 are the first joint and the third joint, and the end of the second straight pipe portion perpendicular to the middle of the first straight pipe portion of the tee pipe 610 is the second joint. Through this setting method, the gas extinguishing medium input port 3 and the air inlet 2 are arranged opposite to each other, which can ensure that the gas extinguishing medium quickly enters the device to be inspected through the first straight pipe portion to quickly eliminate potential safety hazards. Optionally, the second control valve 611 can be an electromagnetic control valve, and the opening and closing of the second control valve 611 are controlled by the controller of the fire protection device. Specifically, when the gas detector 62 detects that the gas composition does not meet the requirements, the gas detector 62 transmits the detected information to the controller, and the controller controls the second control valve 611 to open according to the detected information, so that the gas extinguishing medium input port 3 is connected to the air inlet 2, and the gas extinguishing medium enters the device to be inspected through the gas extinguishing medium input port 3 and the air inlet 2.

[0050] The arranged isolation cavity 12 plays a role in buffering the gas. The gas enters the dehumidification component 7 through the isolation cavity 12, improving the dehumidification effect of the dehumidification component 7. It can also prevent the dry gas in the dehumidification cavity 13 from mixing with the wet gas, ensuring that the gas discharged from the dehumidification cavity 13 is dry gas and realizing the effective dehumidification function of the fire protection device.

[0051] The cavity wall of the dehumidification cavity 13 is provided with a drain port 5, and the dehumidification assembly 7 includes a dehumidifier 71, which has an air intake port, a condensed water outlet 73 and a dry gas outlet 74. The air intake port is connected to a suction fan 72, and the suction fan 72 is placed in the isolation cavity 12 to prevent the gas in the isolation cavity 12 from mixing with the gas in the dehumidification cavity 13. The suction fan 72 is used to suck the gas in the isolation cavity 12 into the dehumidifier 71, and the dehumidifier 71 is used to dry the gas. The condensed water outlet 73 is connected to the drain port 5 through a drain pipe, and the dry gas outlet 74 is connected to the dehumidification cavity 13. The dehumidifier 71 discharges the dry gas into the dehumidification cavity 13, and then the dry gas is discharged into the equipment to be inspected through the exhaust port 4. The condensed water separated by the dehumidifier 71 is discharged through the drain port 5, and the drain port 5 can be connected to a condensed water recovery device. The structure of the dehumidifier 71 is a prior art and will not be described in detail here. The drain port 5 is disposed on a cavity wall of the dehumidification cavity 13 on a side away from the isolation cavity 12 , and the drain port 5 is disposed on a circumferential side wall of the shell 14 .

[0052] When using the fire-fighting device provided in this embodiment, the air inlet of the equipment to be inspected is connected to the exhaust port 4 of the fire-fighting device, the equipment exhaust port of the equipment to be inspected is connected to the air inlet 2 of the fire-fighting device, and the gas extinguishing medium source is connected to the gas extinguishing medium input port 3. In the initial state of the fire-fighting device, the second control valve 611 is closed. After the detection starts, the air suction pump 61 is controlled to work, and the first control valve 64 is opened to allow the gas in the equipment to be inspected to enter the air suction pump 61. The air suction pump 61 blows the gas into the accommodating cavity. The gas detector 62 analyzes the gas composition. If the gas composition meets the requirements, the gas enters the isolation cavity 12 through the second pipeline 68. The gas in the isolation cavity 12 is sucked into the dehumidifier 71 for dehumidification. The dry gas treated by the dehumidifier 71 enters the equipment to be inspected through the exhaust port 4, and the separated condensed water is discharged through the condensed water outlet 73. If the gas composition does not meet the requirements, the second control valve 611 is opened, the first control valve 64 is closed, the air suction pump 61 stops working, and the gas extinguishing medium source provides the gas extinguishing medium, which enters the equipment to be inspected through the three-way pipe 610 and the air inlet 2 to extinguish the fire and eliminate safety hazards.

[0053] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A fire-fighting device for safety management of energy storage battery units, characterized in that: include: A housing (1), wherein a detection cavity (11), an isolation cavity (12) and a dehumidification cavity (13) are provided in the housing (1); the cavity wall of the detection cavity (11) is provided with an air inlet (2) and a gas extinguishing medium input port (3); the cavity wall of the dehumidification cavity (13) is provided with an air outlet (4); the gas extinguishing medium input port (3) is selectively connected to the air inlet (2); and the gas extinguishing medium input port (3) is used to connect to a gas extinguishing medium source; A gas detection component (6) is arranged in the detection cavity (11), a gas inlet of the gas detection component (6) is connected to the gas inlet (2), a gas outlet of the gas detection component (6) is connected to the isolation cavity (12), and the gas detection component (6) is used to allow gas to enter the gas detection component (6) through the gas inlet (2) and detect gas components; A dehumidification component (7) is arranged in the dehumidification cavity (13) and is used for drying gas. The gas inlet of the dehumidification component (7) is connected to the isolation cavity (12). The dehumidification component (7) can allow the gas in the isolation cavity (12) to enter the dehumidification component (7).

2. The fire-fighting device for safety management of energy storage battery units according to claim 1, characterized in that: The detection cavity (11) and the dehumidification cavity (13) are arranged side by side in a first direction, and the isolation cavity (12) and the dehumidification cavity (13) are arranged side by side in a second direction; The air inlet (2) and the gas extinguishing medium input port (3) are arranged on two opposite cavity walls of the detection cavity (11); The exhaust port (4) is arranged on a cavity wall of the dehumidification cavity (13) on a side facing away from the isolation cavity (12).

3. The fire-fighting device for safety management of energy storage battery units according to claim 2, characterized in that: The air inlet (2) is arranged on a cavity wall on the same side of the detection cavity (11) and the air outlet (4).

4. The fire-fighting device for safety management of energy storage battery units according to claim 1, characterized in that: The gas detection component (6) includes an air suction pump (61) and a gas detector (62); the gas inlet of the air suction pump (61) is connected to the air inlet (2) via a first pipeline (63); the gas outlet of the air suction pump (61) is connected to the gas detector (62); the gas outlet of the gas detector (62) is connected to the isolation chamber (12); the air suction pump (61) is used to allow gas to enter the gas detector (62) through the air inlet (2); and the gas detector (62) is used to detect gas components.

5. The fire-fighting device for safety management of energy storage battery units according to claim 4, characterized in that: The first pipeline (63) is provided with a first control valve (64), and the first control valve (64) is configured to be able to open when the suction pump (61) is working, and to be able to close when the gas extinguishing medium input port (3) is connected to the air inlet (2).

6. The fire-fighting device for safety management of energy storage battery units according to claim 4, characterized in that: A surrounding plate (65) is provided in the detection cavity (11), and the surrounding plate (65) and the cavity wall of the detection cavity (11) are arranged to form a accommodating cavity. The gas detector (62) is arranged in the accommodating cavity. An opening is provided in the cavity wall on one side of the accommodating cavity. The gas outlet of the suction pump (61) is arranged opposite to the opening, and the isolation cavity (12) is connected to the accommodating cavity.

7. The fire-fighting device for safety management of energy storage battery units according to claim 6, characterized in that: The cavity wall of the accommodating cavity is provided with a first connecting joint (66), and the cavity wall of the isolation cavity (12) is provided with a second connecting joint (67), and the second connecting joint (67) is connected to the first connecting joint (66) through a second pipeline (68).

8. The fire-fighting device for safety management of energy storage battery units according to claim 6, characterized in that: The enclosure (65) is a U-shaped structure, and the two ends of the enclosure (65) are respectively connected to the cavity wall of the detection cavity (11), and form a receiving cavity with two ends open. A first mounting frame (69) is provided in the receiving cavity, and one end of the first mounting frame (69) passes through the opening of the receiving cavity, and one end of the first mounting frame (69) is connected to the cavity wall of the detection cavity (11), and the gas detector (62) is connected to the first mounting frame (69).

9. The fire-fighting device for safety management of energy storage battery units according to any one of claims 1 to 8, characterized in that: A three-way pipe (610) is provided in the detection cavity (11); a first joint of the three-way pipe (610) is connected to the gas inlet (2); a second joint of the three-way pipe (610) is connected to the gas inlet of the gas detection component (6); a third joint of the three-way pipe (610) is connected to the gas extinguishing medium input port (3); and a second control valve (611) is provided between the third joint and the gas extinguishing medium input port (3); the second control valve (611) is configured to selectively connect the gas extinguishing medium input port (3) and the three-way pipe (610).

10. The fire-fighting device for safety management of energy storage battery units according to any one of claims 1 to 8, characterized in that: The cavity wall of the dehumidification cavity (13) is provided with a drain port (5), the dehumidification component (7) comprises a dehumidifier (71), the dehumidifier (71) has an air intake port, a condensed water outlet (73) and a dry gas outlet (74), the air intake port is connected to a suction fan (72), the suction fan (72) is placed in the isolation cavity (12), the suction fan (72) is used to suck the gas in the isolation cavity (12) into the dehumidifier (71), the dehumidifier (71) is used to dry the gas, the condensed water outlet (73) is connected to the drain port (5) through a drain pipe, and the dry gas outlet (74) is connected to the dehumidification cavity (13).

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