High-voltage electrical control cabinet with flame-retardant, fire-extinguishing and isolation functions

Abstract

The invention relates to the technical field of electrical control cabinets, and discloses a high-voltage electrical control cabinet with flame-retardant, fire-extinguishing and isolation functions. The high-voltage electrical control cabinet with the flame-retardant, fire-extinguishing and isolation functions comprises a control cabinet body, a bottom plate and a partition plate are fixedly installed on the inner wall of the control cabinet body, the bottom plate and the partition plate are horizontally arranged, the bottom plate is arranged below the partition plate, and flame-retardant and fire-extinguishing structures are installed at the top end of the bottom plate and the top end of the partition plate; high-voltage electrical control assemblies in the high-voltage electrical control cabinet are installed at the top end of a bottom plate and the top end of a partition plate respectively, a flame-retardant fire extinguishing structure is in a C shape, an opening of the flame-retardant fire extinguishing structure faces downwards, and the high-voltage electrical control assemblies are covered with the flame-retardant fire extinguishing structure; a gap is reserved between the flame-retardant fire extinguishing structure and the inner wall of the control cabinet body; the fire extinguishing agent can form a uniform distribution effect when falling on the high-voltage electrical control assembly along with the high-pressure gas, the fire extinguishing effect of the fire extinguishing agent is guaranteed, the high-pressure gas can be fully mixed with the fire extinguishing agent in the early stage of fire extinguishing, and therefore the rapid fire extinguishing effect is achieved.

Description

Technical Field

[0001] This invention relates to the field of electrical control cabinet technology, and in particular to a high-voltage electrical control cabinet with flame-retardant fire extinguishing and isolation functions. Background Technology

[0002] A control cabinet is an assembly of switching equipment, measuring instruments, protective devices, and auxiliary equipment in a closed or semi-closed metal cabinet or panel, arranged according to electrical wiring requirements. Its layout should meet the requirements for normal operation of the power system, facilitate maintenance, and not endanger personnel or surrounding equipment. During normal operation, circuits can be connected or disconnected manually or automatically. In case of faults or abnormal operation, protective devices will disconnect the circuit or trigger an alarm. Measuring instruments can display various operating parameters, allow adjustment of certain electrical parameters, and provide alerts or signals for deviations from normal operating conditions. Control cabinets are commonly used in power generation, distribution, and substations.

[0003] Currently, existing electrical control cabinets are prone to fires in the event of a short circuit. These cabinets lack automatic fire suppression systems, requiring personnel to use handheld fire extinguishers to extinguish the fire. However, since the fire source is on the internal wall of the cabinet, handheld extinguishers are ineffective. Therefore, we propose a high-voltage electrical control cabinet with flame-retardant fire suppression and isolation functions. Summary of the Invention

[0004] The main objective of this invention is to provide a high-voltage electrical control cabinet with flame-retardant fire extinguishing and isolation functions, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A high-voltage electrical control cabinet with flame-retardant fire extinguishing and isolation functions includes a control cabinet body. A base plate and a partition plate are fixedly installed on the inner wall of the control cabinet body. Both the base plate and the partition plate are horizontally arranged, with the base plate located below the partition plate. Flame-retardant fire extinguishing structures are installed at the top of both the base plate and the partition plate. High-voltage electrical control components inside the high-voltage electrical control cabinet are respectively installed at the top of the base plate and the top of the partition plate. The flame-retardant fire extinguishing structure is C-shaped with its opening facing downwards and covers the high-voltage electrical control components. A gap is left between the flame-retardant fire extinguishing structure and the inner wall of the control cabinet body. The flame-retardant fire extinguishing structure includes a dispensing box, two high-pressure gas cylinders, and two fire extinguishing agent cylinders. The two high-pressure gas cylinders are respectively located in front of the two fire extinguishing agent cylinders, distributed left and right. Control valves are fixedly installed at the rear of both high-pressure gas cylinders and the rear of both fire extinguishing agent cylinders. The two high-pressure gas cylinders are connected to the front of the two fire extinguishing agent cylinders through the two control valves, and the two fire extinguishing agent cylinders are connected to a delivery pipe through the two control valves. The dispensing box is located above the high-pressure gas cylinders and fire extinguishing agent cylinders. The ends of the two delivery pipes away from the control valves extend from the rear of the dispensing box to the top of the dispensing box and are fixed to the upper end of the dispensing box. A connecting rod is installed on both the front and rear control valves. A pressure rod abuts against the upper end of each of the two connecting rods. A connector is rotatably connected to the top of each pressure rod away from the connecting rod. An electric push rod is installed above each connector. Both electric push rods are fixed to the inner wall of the control cabinet, and the output ends of the two electric push rods are fixed to the top of the two connectors. Smoke sensors and controllers are installed at the bottom of the partition and inside the top of the control cabinet. The controller is connected to the smoke sensor and controls the movement of the electric push rod. Smoke generated due to a fault in the high-voltage electrical control components moves upward through the gap between the flame-retardant fire extinguishing structure and the inner wall of the control cabinet and is detected by the smoke sensor. After the smoke sensor detects the smoke, it controls the electric push rod to move through the controller. The electric push rod pushes the connector, pressure plate and connecting rod downward, causing the control valve to open. After the control valve opens, the high-pressure gas in the high-pressure gas tank enters the fire extinguishing agent tank and mixes with the fire extinguishing agent. The fire extinguishing agent and the high-pressure gas enter the dispensing box through the delivery pipe, where they are mixed again and then distributed onto the high-voltage electrical control components to carry out the fire extinguishing operation.

[0006] Preferably, the control valve includes a valve body with a valve cavity inside. A first connecting pipe is fixedly connected to the front side of the valve body, a valve cover is fixedly connected to the rear side of the valve body, and a second connecting pipe is fixedly connected to the rear side of the valve cover. The inner cavities of both the first and second connecting pipes are connected to the valve cavity of the valve body. A valve plate is provided in the valve cavity of the valve body. When the valve plate is at the bottom of the valve cavity, it isolates the first and second connecting pipes, preventing them from communicating. As the valve body moves upward within the valve cavity, the first and second connecting pipes communicate, and the area of ​​the communication between the first and second connecting pipes gradually increases with the increase of the upward movement distance of the valve body. A push-pull rod is embedded in the top of the valve plate, with the top of the push-pull rod extending upward through the valve plate and valve body to the top of the valve body. A transmission rod is fixedly connected to the top of the push-pull rod.

[0007] Preferably, a guide box is fixedly connected to one end of the valve body facing the inner wall of the control cabinet. A gear shaft is rotatably connected inside the guide box. A first drive rack and a transmission rack are meshed on both sides of the gear shaft. The end of the transmission rack away from the gear shaft abuts against the end of the valve body where the guide box is installed. The top end of the transmission rack is fixed to the bottom end of the transmission rod. The end of the first drive rack away from the gear shaft abuts against an inner wall of the guide box facing the valve body. A connecting plate is fixedly connected to the lower side of the end of the first drive rack away from the gear shaft. A drive rod is fixedly connected to the top of the connecting plate. The top end of the drive rod is embedded in the bottom end of the connecting rod. The transmission rack and the first drive rack move in opposite directions. The first drive rack moves downward and drives the transmission rack upward through the gear shaft, thereby moving the valve plate upward.

[0008] Preferably, the rear side of the high-pressure gas cylinder and the rear side of the extinguishing agent cylinder are respectively connected to a No. 1 connecting pipe, and the inner cavity of the high-pressure gas cylinder and the inner cavity of the extinguishing agent cylinder are respectively connected to the inner cavity of a No. 1 connecting pipe. The front side of the extinguishing agent cylinder and the end face of the delivery pipe away from the dispensing box are respectively connected to a No. 2 connecting pipe, and the inner cavity of the extinguishing agent cylinder and the inner cavity of the delivery pipe are respectively connected to the inner cavity of a No. 2 connecting pipe. After the valve plate moves up to connect the No. 1 connecting pipe and the No. 2 connecting pipe, the high-pressure gas in the high-pressure gas cylinder can enter the extinguishing agent cylinder to mix with the extinguishing agent and push the extinguishing agent into the delivery pipe.

[0009] Preferably, the dispensing box includes a box body with an open bottom. A box cover is fixedly connected to the bottom of the box body. A conveying pipe is fixed to the top of the box body, and the inner cavity of the conveying pipe communicates with the inner cavity of the box body. An adjusting plate is provided in the inner cavity of the box body. The outer surface of the adjusting plate is slidably connected to the vertical wall of the box body. Springs are fixedly connected to the left and right sides of the bottom of the adjusting plate. The end of the spring away from the adjusting plate is fixed to the top of the box cover. A second dispensing hole is provided on the adjusting plate, and a first dispensing hole is provided on the box cover, with the first dispensing hole located below the second dispensing hole.

[0010] Preferably, a swing arm is rotatably connected between the front and rear inner walls of the box body. A film-breaking block and a transmission gear are fixedly sleeved on the swing arm. The transmission gear is located behind the film-breaking block, and the film-breaking block is located between the first and second material distribution holes. A second drive rack is engaged on one side of the transmission gear, and the top end of the second drive rack is fixed to the bottom end of the adjustment plate.

[0011] Preferably, a second sealing film is fixedly connected to the top of the adjusting plate, which closes the upper opening of the second dispensing hole, and a first sealing film is fixedly connected to the bottom of the box cover, which closes the lower opening of the first dispensing hole.

[0012] Preferably, the membrane breaking block breaks through the No. 1 sealing film and the No. 2 sealing film in sequence.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. High-voltage electrical control components are installed through the base plate and partition plate. The base plate and partition plate act as a barrier to prevent the fire in the lower part of the control cabinet from spreading to the upper part of the control cabinet. By setting up smoke sensors and controllers, the smoke sensors detect the smoke generated by the failure of the high-voltage electrical control components and control the corresponding electric push rod to activate the flame-retardant fire extinguishing structure to extinguish the fire. 2. By setting up a flame-retardant extinguishing structure, the control valve in the flame-retardant extinguishing structure is opened by an electric push rod. The high-pressure gas in the high-pressure gas tank enters the extinguishing agent tank through the opened control valve and mixes with the extinguishing agent in the extinguishing agent tank. The extinguishing agent and high-pressure gas enter the delivery pipe through the opened control valve, and then enter the cavity above the regulating plate in the box body, realizing the re-mixing of high-pressure gas and extinguishing agent. This ensures that the extinguishing agent and high-pressure gas are fully mixed, so that when the extinguishing agent falls on the high-voltage electrical control components with the high-pressure gas, it can form a uniform distribution effect, ensuring the extinguishing effect of the extinguishing agent.

[0014] 3. In the flame-retardant fire extinguishing structure, after the dispensing box is filled with high-pressure gas and extinguishing agent, the adjusting plate moves down and drives the swing rod to swing through the No. 2 drive rack and transmission gear, causing the membrane breaking block to swing to a vertical position, breaking the No. 1 and No. 2 sealing membranes in sequence. The high-pressure gas and extinguishing agent fall through the No. 2 and No. 1 dispensing holes to the bottom of the box cover and land on the high-voltage electrical control components to achieve the fire extinguishing function. The high-pressure gas pushes the adjusting plate down to open the No. 1 and No. 2 dispensing holes in sequence, allowing the high-pressure gas and extinguishing agent to have a certain residence time in the box. This allows the high-pressure gas to fully mix with the extinguishing agent in the early stage of fire extinguishing, thereby achieving a rapid fire extinguishing effect. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of a high-voltage electrical control cabinet with flame-retardant fire extinguishing and isolation functions according to the present invention; Figure 2 This is a schematic diagram of the internal structure of a high-voltage electrical control cabinet with flame-retardant fire extinguishing and isolation functions according to the present invention. Figure 3 This is a schematic diagram of the structure of the control valve of a high-voltage electrical control cabinet with flame-retardant fire extinguishing and isolation function according to the present invention; Figure 4 This is a partial structural diagram of the control valve of a high-voltage electrical control cabinet with flame-retardant fire extinguishing and isolation functions according to the present invention. Figure 5 This is a schematic diagram of the internal structure of the dispensing box of a high-voltage electrical control cabinet with flame-retardant fire extinguishing and isolation functions according to the present invention. Figure 6 This is a schematic diagram showing the arrangement of the No. 1 material distribution hole, the No. 1 sealing film, the No. 2 material distribution hole, and the No. 2 sealing film in a high-voltage electrical control cabinet with flame-retardant fire extinguishing and isolation functions according to the present invention. Figure 7 This is a schematic diagram showing the arrangement of the swing arm, the second drive rack, and the transmission gear in a high-voltage electrical control cabinet with flame-retardant fire extinguishing and isolation functions according to the present invention.

[0016] In the diagram: 1. Control cabinet; 2. Base plate; 3. Partition plate; 4. High-pressure gas cylinder; 5. Extinguishing agent cylinder; 6. Control valve; 7. Delivery pipe; 8. Dispensing box; 9. Connecting rod; 10. Electric push rod; 11. Connector; 12. Pressure rod; 61. Valve body; 611. No. 1 connecting pipe; 612. Guide box; 62. Valve cover; 621. No. 2 connecting pipe; 63. Valve cavity; 631. Valve plate; 6311. Push-pull rod; 64. Transmission... 65. Moving rod; 66. Gear shaft; 67. Transmission rack; 68. First drive rack; 69. Connecting plate; 60. Guide plate; 61. Drive rod; 82. Box body; 83. Box cover; 84. First dispensing hole; 85. First sealing film; 86. Adjusting plate; 87. Second dispensing hole; 88. Second sealing film; 89. Swing rod; 80. Breaking film block; 81. Second drive rack; 82. Transmission gear; 83. Spring. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0018] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0020] like Figure 1-7As shown, a high-voltage electrical control cabinet with flame-retardant fire extinguishing and isolation functions includes a control cabinet body 1. A base plate 2 and a partition plate 3 are fixedly installed on the inner wall of the control cabinet body 1. Both the base plate 2 and the partition plate 3 are horizontally arranged, with the base plate 2 located below the partition plate 3. The base plate 2 and the partition plate 3 act as a partition to separate the inner cavity of the control cabinet body 1. Flame-retardant fire extinguishing structures are installed at the top of both the base plate 2 and the partition plate 3. The high-voltage electrical control components inside the high-voltage electrical control cabinet are respectively installed at the top of the base plate 2 and the top of the partition plate 3. The flame-retardant fire extinguishing structure is C-shaped with its opening facing downwards and covers the high-voltage electrical control components. A gap is left between the flame-retardant fire extinguishing structure and the inner wall of the control cabinet body 1. Smoke sensors and controllers are installed at the bottom of the partition plate 3 and inside the top of the control cabinet body 1. The controller is connected to the smoke sensor and controls the action of the electric push rod 10. The flame-retardant extinguishing structure includes a dispensing box 8, two high-pressure gas cylinders 4, and two extinguishing agent cylinders 5. The two high-pressure gas cylinders 4 are positioned in front of the two extinguishing agent cylinders 5, arranged horizontally. Control valves 6 are fixedly installed at the rear of both high-pressure gas cylinders 4 and the rear of both extinguishing agent cylinders 5. The two high-pressure gas cylinders 4 are connected to the front of the two extinguishing agent cylinders 5 via the two control valves 6. The two extinguishing agent cylinders 5 are connected to a delivery pipe 7 via the two control valves 6. The dispensing box 8 is positioned above the high-pressure gas cylinders 4 and the extinguishing agent cylinders 5, and the two delivery pipes 7 are located away from the control valves. One end of each control valve 6 extends from the rear of the dispensing box 8 to the top of the dispensing box 8 and is fixed to the upper end of the dispensing box 8. A connecting rod 9 is installed on both the front and rear control valves 6. A pressure rod 12 is abutted at the upper end of each of the two connecting rods 9. A connector 11 is rotatably connected to the top of each of the two pressure rods 12 on the side away from the connecting rod 9. An electric push rod 10 is provided above each of the two connectors 11. Both electric push rods 10 are fixed to the inner wall of the control cabinet 1. The output ends of the two electric push rods 10 are fixed to the top of the two connectors 11 respectively.

[0021] The principle behind the above technical solution for achieving flame-retardant fire extinguishing isolation function is as follows: the base plate 2 and the partition plate 3 act as a barrier to prevent the fire in the lower part of the control cabinet 1 from spreading to the upper part of the control cabinet 1; after a fire occurs, the generated smoke moves upward from the gap between the flame-retardant fire extinguishing structure and the inner wall of the control cabinet 1 and is detected by the corresponding smoke sensor. Then, the corresponding controller controls the two corresponding electric push rods 10 to move, causing the output ends of the two electric push rods 10 to move downward, pushing the connector 11, the pressure rod 12 and the connecting rod 9 to move downward, causing the four control valves 6 corresponding to the two electric push rods 10 to open. After the control valves 6 are opened, the high-pressure gas in the high-pressure gas tank 4 enters the fire extinguishing agent tank 5 and mixes with the fire extinguishing agent. The fire extinguishing agent and the high-pressure gas enter the dispensing box 8 through the delivery pipe 7, where they are mixed again and then distributed on the high-voltage electrical control components to carry out fire extinguishing operations.

[0022] In the above technical solution, the gas in the high-pressure gas tank 4 is an inert gas, preferably carbon dioxide, and the extinguishing agent in the extinguishing agent tank 5 is preferably dry powder.

[0023] By rotating the pressure rod 12 to the connector 11, the pressure rod 12 can rotate on the connector 11 and move with the up and down movement of the connector 11. Before the flame-retardant fire extinguishing structure is installed on the top of the base plate 2 or the partition plate 3, the pressure rod 12 rotates to the front-back direction. After the flame-retardant fire extinguishing structure is fixed on the top of the base plate 2 or the partition plate 3, the pressure rod 12 rotates to contact the top of the connector 9. When it is necessary to remove the flame-retardant fire extinguishing structure, the pressure rod 12 is rotated to the front-back direction again. Through the above, the flame-retardant fire extinguishing structure can be easily disassembled and used.

[0024] As a further explanation of the above technical solution, the control valve 6 includes a valve body 61, within which a valve cavity 63 is provided. A first connecting pipe 611 is fixedly connected to the front side of the valve body 61, and a valve cover 62 is fixedly connected to the rear side of the valve body 61. A second connecting pipe 621 is fixedly connected to the rear side of the valve cover 62. The inner cavities of both the first and second connecting pipes 611 and 621 are connected to the valve cavity 63 of the valve body 61. A valve plate 631 is provided within the valve cavity 63 of the valve body 61. The valve plate 631 can slide up and down within the valve cavity 63. When the valve plate 631 is at the bottom of the valve cavity 63, it disconnects the first connecting pipe. Connecting pipes 611 and 621 connect the first and second connecting pipes 611 and 621, allowing the valve plate 631 to move upwards and connect the first and second connecting pipes 611 and 621. A push-pull rod 6311 is embedded in the top of the valve plate 631, with the top of the push-pull rod 6311 extending upwards through the valve plate 631 and the valve body 61 and reaching above the valve body 61. A transmission rod 64 is fixedly connected to the top of the push-pull rod 6311. The upward movement of the transmission rod 64 causes the push-pull rod 6311 to move upwards, thus moving the valve plate 631 upwards within the valve cavity 63. The downward movement of the transmission rod 64 after its upward movement causes the valve plate 631 to move downwards.

[0025] Furthermore, a guide box 612 is fixedly connected to one end of the valve body 61 facing the inner wall of the control cabinet 1. A gear shaft 65 is rotatably connected inside the guide box 612. A first drive rack 67 and a transmission rack 66 are respectively meshed on both sides of the gear shaft 65. The end of the transmission rack 66 away from the gear shaft 65 abuts against the end of the valve body 61 on which the guide box 612 is installed. The end of the first drive rack 67 away from the gear shaft 65 abuts against the inner wall of the guide box 612 facing the valve body 61. The first drive rack 67 and the transmission rack 66 move in opposite directions, and the guide box 61... 2. During the movement of the first drive rack 67 and the transmission rack 66, the first drive rack 67 and the transmission rack 66 move in a vertical straight line, and keep the first drive rack 67 and the transmission rack 66 meshing with the gear shaft 65; the top end of the transmission rack 66 is fixed to the bottom end of the transmission rod 64, and a connecting plate 671 is fixedly connected to the lower side of the end of the first drive rack 67 away from the gear shaft 65. A drive rod 673 is fixedly connected to the top end of the connecting plate 671, and the top end of the drive rod 673 is embedded in the bottom end of the connecting rod 9. The rear side of the high-pressure gas cylinder 4 and the rear side of the extinguishing agent cylinder 5 are respectively connected to a No. 1 connecting pipe 611. The inner cavity of the high-pressure gas cylinder 4 and the inner cavity of the extinguishing agent cylinder 5 are respectively connected to the inner cavity of the No. 1 connecting pipe 611. The front side of the extinguishing agent cylinder 5 and the end face of the delivery pipe 7 away from the dispensing box 8 are respectively connected to a No. 2 connecting pipe 621. The inner cavity of the extinguishing agent cylinder 5 and the inner cavity of the delivery pipe 7 are respectively connected to the inner cavity of the No. 2 connecting pipe 621.

[0026] The opening principle of the control valve 6 in this invention is as follows: the electric push rod 10 pushes the connector 11, the pressure rod 12 and the connecting rod 9 to move downward, causing the drive rod 673 to move downward, which in turn pushes the connecting plate 671 and the first drive rack 67 to move downward, causing the gear shaft 65 to rotate, which in turn drives the transmission rack 66 to move upward, which in turn pushes the transmission rod 64 and the push-pull rod 6311 to move upward, causing the valve plate 631 to move upward within the valve cavity 63, thus connecting the first connecting pipe 611 and the second connecting pipe 621, thereby opening the control valve 6.

[0027] It should be noted that the control valve 6 also includes a guide plate 672 fixed to the top of the connecting plate 671. The guide plate 672 is vertically inserted through the guide box 612 and located between the drive rod 673 and the first drive rack 67, guiding the up and down movement of the first drive rack 67.

[0028] As a further explanation of the above technical solution, the dispensing box 8 includes a box body 81 with an open bottom. A box cover 82 is fixedly connected to the bottom of the box body 81. A delivery pipe 7 is fixed to the top of the box body 81, and the inner cavity of the delivery pipe 7 communicates with the inner cavity of the box body 81. An adjusting plate 83 is provided in the inner cavity of the box body 81, and the outer surface of the adjusting plate 83 is slidably connected to the vertical wall of the box body 81. High-pressure gas, along with the extinguishing agent, is input into the inner cavity of the box body 81 through the delivery pipe 7, pressurizing the cavity above the adjusting plate 83 and pushing the adjusting plate 83 down the inner wall of the box body 81. Springs are fixedly connected to the left and right sides of the bottom of the adjusting plate 83. 87. The end of spring 87 away from adjusting plate 83 is fixed to the top of box cover 82. A swing rod 84 is rotatably connected between the front and rear inner walls of box body 81. A film-breaking block 841 and a transmission gear 86 are fixedly sleeved on the swing rod 84. The transmission gear 86 is located behind the film-breaking block 841. A second drive rack 85 is meshed on one side of the transmission gear 86. The top of the second drive rack 85 is fixed to the bottom of adjusting plate 83. During the downward movement of adjusting plate 83, spring 87 is compressed and drives the second drive rack 85 to move down, causing the transmission gear 86 to swing to one side, driving the swing rod 84 to swing, and causing the film-breaking block 841 to swing to a vertical position.

[0029] A second dispensing hole 831, penetrating vertically, is provided on the adjusting plate 83, and a first dispensing hole 821, penetrating vertically, is provided on the box cover 82. The first dispensing hole 821 is located below the second dispensing hole 831. A film-breaking block 841 is disposed between the first dispensing hole 821 and the second dispensing hole 831. A second sealing film 832 is fixedly connected to the top of the adjusting plate 83, sealing the upper opening of the second dispensing hole 831. A first sealing film 822 is fixedly connected to the bottom of the box cover 82, sealing the lower opening of the first dispensing hole 821. The film-breaking block 841 breaks open sequentially as it swings to a vertical position. The No. 1 sealing film 822 and the No. 2 sealing film 832 cause the adjusting plate 83 to slide downward a certain distance under the push of high-pressure gas after the No. 1 sealing film 822 is broken, until the No. 2 sealing film 832 is broken by the film breaking block 841. After the No. 2 sealing film 832 is broken, the cavity above the adjusting plate 83 is connected to the cavity below the box cover 82 through the No. 2 material distribution hole 831 and the No. 1 material distribution hole 821. At this time, the spring 87 can be reset to push the adjusting plate 83 to move upward and reset. The high-pressure gas and fire extinguishing agent fall down to the bottom of the box cover 82 through the No. 2 material distribution hole 831 and the No. 1 material distribution hole 821 and land on the high-voltage electrical control components to achieve the fire extinguishing function.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A high-voltage electrical control cabinet with flame-retardant fire extinguishing and isolation functions, comprising a control cabinet body (1), characterized in that: A base plate (2) and a partition plate (3) are fixedly installed on the inner wall of the control cabinet (1). The base plate (2) and the partition plate (3) are both horizontally arranged. The base plate (2) is located below the partition plate (3). Flame-retardant fire extinguishing structures are installed at the top of the base plate (2) and the top of the partition plate (3). The flame-retardant fire extinguishing structure includes a dispensing box (8), two high-pressure gas cylinders (4), and two fire extinguishing agent cylinders (5). The two high-pressure gas cylinders (4) are respectively located in front of the two fire extinguishing agent cylinders (5), and the two high-pressure gas cylinders (4) are distributed to the left and right. Control valves (6) are fixedly installed at the rear of the two high-pressure gas cylinders (4) and the rear of the two fire extinguishing agent cylinders (5). The two high-pressure gas cylinders (4) are connected to the front of the two fire extinguishing agent cylinders (5) through the two control valves (6), and the two fire extinguishing agent cylinders (5) are respectively connected to a delivery pipe (7) through the two control valves (6). The dispensing box (8) is located above the high-pressure gas cylinders (4) and the fire extinguishing agent cylinders (5). The end of the pipe (7) away from the control valve (6) extends from the rear of the dispensing box (8) to the top of the dispensing box (8) and is fixed to the upper end of the dispensing box (8); a connecting rod (9) is installed on both the front and rear control valves (6), and a pressure rod (12) abuts against the upper end of each of the two connecting rods (9). A connector (11) is rotatably connected to the top of each of the two pressure rods (12) away from the connecting rod (9). An electric push rod (10) is provided above each of the two connectors (11). The two electric push rods (10) are fixed to the inner wall of the control cabinet (1), and the output ends of the two electric push rods (10) are fixed to the top of the two connectors (11).

2. A high-voltage electrical control cabinet with flame-retardant fire extinguishing and isolation function according to claim 1, characterized in that: The control valve (6) includes a valve body (61), a valve cavity (63) is provided inside the valve body (61), a first connecting pipe (611) is fixedly connected to the front side of the valve body (61), a valve cover (62) is fixedly connected to the rear side of the valve body (61), a second connecting pipe (621) is fixedly connected to the rear side of the valve cover (62), the inner cavity of the first connecting pipe (611) and the inner cavity of the second connecting pipe (621) are both connected to the valve cavity (63) of the valve body (61), a valve plate (631) is provided in the valve cavity (63) of the valve body (61), a push-pull rod (6311) is embedded in the top of the valve plate (631), the top of the push-pull rod (6311) extends upward through the valve plate (631) and the valve body (61) and extends to the top of the valve body (61); a transmission rod (64) is fixedly connected to the top of the push-pull rod (6311).

3. A high-voltage electrical control cabinet with flame-retardant fire extinguishing and isolation function according to claim 2, characterized in that: A guide box (612) is fixedly connected to one end of the valve body (61) facing the inner wall of the control cabinet (1). A gear shaft (65) is rotatably connected inside the guide box (612). A drive rack (67) and a transmission rack (66) are respectively meshed on both sides of the gear shaft (65). The end of the transmission rack (66) away from the gear shaft (65) abuts against the end of the valve body (61) on which the guide box (612) is installed. The top of the transmission rack (66) The first drive rack (67) is fixed to the bottom end of the transmission rod (64). The end of the first drive rack (67) away from the gear shaft (65) abuts against the inner wall of the guide box (612) facing the valve body (61). A connecting plate (671) is fixedly connected to the lower side of the end of the first drive rack (67) away from the gear shaft (65). A drive rod (673) is fixedly connected to the top of the connecting plate (671). The top of the drive rod (673) is embedded in the bottom end of the connecting rod (9).

4. A high-voltage electrical control cabinet with flame-retardant fire extinguishing and isolation function according to claim 3, characterized in that: The rear side of the high-pressure gas cylinder (4) and the rear side of the fire extinguishing agent cylinder (5) are respectively connected to a No. 1 connecting pipe (611). The inner cavity of the high-pressure gas cylinder (4) and the inner cavity of the fire extinguishing agent cylinder (5) are respectively connected to the inner cavity of a No. 1 connecting pipe (611). The front side of the fire extinguishing agent cylinder (5) and the end face of the delivery pipe (7) away from the dispensing box (8) are respectively connected to a No. 2 connecting pipe (621). The inner cavity of the fire extinguishing agent cylinder (5) and the inner cavity of the delivery pipe (7) are respectively connected to the inner cavity of a No. 2 connecting pipe (621).

5. A high-voltage electrical control cabinet with flame-retardant fire extinguishing and isolation function according to claim 4, characterized in that: The dispensing box (8) includes a box body (81) with an open bottom. A box cover (82) is fixedly connected to the bottom of the box body (81). The conveying pipe (7) is fixed to the top of the box body (81), and the inner cavity of the conveying pipe (7) communicates with the inner cavity of the box body (81). An adjusting plate (83) is provided in the inner cavity of the box body (81), and the outer surface of the adjusting plate (83) is slidably connected to the vertical wall surface of the box body (81). Springs (87) are fixedly connected to the bottom left and bottom right of the adjustment plate (83). The end of the spring (87) away from the adjustment plate (83) is fixed to the top of the box cover (82). A second material distribution hole (831) is provided on the adjustment plate (83) and a first material distribution hole (821) is provided on the box cover (82). The first material distribution hole (821) is located below the second material distribution hole (831).

6. A high-voltage electrical control cabinet with flame-retardant fire extinguishing and isolation function according to claim 5, characterized in that: A swing arm (84) is rotatably connected between the front and rear inner walls of the box (81). A film-breaking block (841) and a transmission gear (86) are fixedly sleeved on the swing arm (84). The transmission gear (86) is located behind the film-breaking block (841). The film-breaking block (841) is located between the first material distribution hole (821) and the second material distribution hole (831). A second drive rack (85) is meshed on one side of the transmission gear (86). The top end of the second drive rack (85) is fixed to the bottom end of the adjusting plate (83).

7. A high-voltage electrical control cabinet with flame-retardant fire extinguishing and isolation function according to claim 6, characterized in that: A second sealing film (832) is fixedly connected to the top of the adjusting plate (83), which closes the upper opening of the second dispensing hole (831). A first sealing film (822) is fixedly connected to the bottom of the box cover (82), which closes the lower opening of the first dispensing hole (821).

8. A high-voltage electrical control cabinet with flame-retardant fire extinguishing and isolation function according to claim 7, characterized in that: The membrane breaking block (841) breaks the first sealing membrane (822) and the second sealing membrane (832) in succession.

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