A zoned fireproof intelligent power metering box

Abstract

A partitioned fireproof intelligent power metering box, relating to the technical field of power metering equipment, includes a box body with multiple partitions dividing the box body into multiple chambers. Each chamber has a removable transparent sealing plate that seals the chamber, forming a sealed area. An operating port is provided on the transparent sealing plate, into which a flame-retardant glove is installed. A gas circulator is installed on the box body to guide the circulation of inert gas within the chambers, carrying away heat. This invention creates multiple independent chambers within the box body through multiple partitions, each with a corresponding door, achieving physical isolation and independent control of each chamber. When an electrical fault in a single chamber causes a fire, the partitions effectively prevent the spread of flames and high-temperature smoke across chambers, controlling the fire within a single chamber, reducing the risk of overall equipment damage, minimizing cascading accidents, and improving the fire protection level of the metering box.

Description

Technical Field

[0001] This application relates to the technical field of electricity metering equipment, and in particular to a zoned fireproof intelligent electricity metering box. Background Technology

[0002] Intelligent power metering boxes are key metering and management terminals in modern low-voltage power distribution systems. They are widely used in residential, commercial, and industrial settings. They integrate high-precision power metering modules, data acquisition units, communication modules, and protective electrical appliances, enabling centralized installation and unified management of multiple power circuits.

[0003] Zoned fire prevention is an active protection design for fire risks inside metering boxes. It uses physical partitions or independent chamber structures to separate the circuits or functional modules of different users into mutually isolated fire-resistant zones. For example, a fireproof electricity metering box with application number CN202511262531.2 uses internal airflow to push the barrier ball upward to expel air. In a fire-prone, enclosed environment, if the internal pressure rises sharply, the high-pressure airflow will overcome the spring resistance and forcefully push open the barrier ball, forming a pressure relief channel to prevent the box from bursting. The bottom heat dissipation mechanism uses a motor to drive the heat dissipation blades to rotate via a sprocket and chain, forcibly drawing in external cold air and passing it through a fireproof filter to remove the heat from the electronic components, thereby controlling the internal temperature within a safe range during routine maintenance.

[0004] However, when the aforementioned existing technologies are used for fire prevention of smart electricity metering boxes, the dry powder particles that permeate the box at the moment of dry powder extinguishing agent spraying can easily invade the pressure relief mechanism at the top, causing the movement of the baffle ball to be obstructed or even completely jammed, thus losing its subsequent pressure relief and reset functions. At this time, outside air will continue to rush into the box, which not only destroys the inert environment required for fire extinguishing, but may also provide oxygen to the remaining fire source, significantly increasing the risk of reignition and seriously weakening the overall fire prevention performance.

[0005] The dust cloud formed after dry powder spraying has extremely strong penetrability and will significantly reduce the surface insulation resistance of insulating materials, posing a serious risk of secondary disasters when protecting high-value, high-precision electrical equipment.

[0006] In addition, when the metering box is under routine maintenance, the door is opened, which exposes the internal environment directly to the outside atmosphere. Moisture intrusion is unavoidable. Since dry powder extinguishing agents are extremely sensitive to humidity, long-term moisture accumulation will cause them to lose their fluidity and solidify into lumps. This caking phenomenon will directly hinder the gravity release mechanism. That is, the gravity of the dry powder is insufficient to drive the movable plate to overcome frictional resistance and open, causing the extinguishing agent to be unable to effectively cover the fire source in the early stage of a fire, resulting in serious safety hazards. Summary of the Invention

[0007] To address the technical problem that opening the cabinet door would expose the internal environment directly to the outside atmosphere, this application provides a zoned fireproof intelligent energy metering box, employing the following technical solution: A partitioned fireproof intelligent electricity metering box includes a box body with multiple partitions inside the box body, which divide the box body into multiple chambers. Each chamber is equipped with a removable transparent sealing plate, which seals the chamber to form a sealed area. An operating port is provided on the transparent sealing plate, and flame-retardant gloves are installed inside the operating port for operators to perform maintenance work while the power is on. A gas circulator is installed on the box to guide the inert gas in the chamber to circulate and remove heat, so as to prevent the temperature inside the box from getting too high. The enclosure is equipped with connecting pipes that connect the top and bottom of the same chamber. The air inlet of the connecting pipe is connected to the bottom of the chamber, and the air outlet extends to the upper part of the corresponding chamber, thereby transporting the low-temperature gas at the bottom of the chamber to the upper part, forming a circulating airflow to dissipate heat.

[0008] Preferably, the partition has a cavity inside, and through holes are provided on both sides of the cavity, which connects the two adjacent cavities through the through holes; one end of the connecting pipe is connected to the cavity from the top.

[0009] Preferably, a partition plate is provided inside the cavity, which divides the cavity into two air intake chambers. The two air intake chambers are connected to the corresponding chamber on one side through through holes. A connecting pipe enters the cavity from the upper end of the partition plate and connects to both air intake chambers. The gas that has been cooled enters the two air intake chambers and then enters the chamber connected to them through through holes.

[0010] Preferably, the chamber is equipped with a fixed-point fire extinguisher, which will extinguish the fire at the point of origin. A fixed-point fire extinguisher includes an installation frame inside a cavity. The installation frame has several uniform installation areas, and each installation area contains an airbag filled with extinguishing agent.

[0011] Preferably, the mounting frame is provided with a mounting plate, and the mounting plate is provided with an opening corresponding to the mounting area. The mounting plate is used to install electrical equipment.

[0012] Preferably, a mounting cover is provided on one side of the mounting frame, and a receiving cavity is formed by sealing the mounting cover and the mounting frame. A connecting hole is provided at the bottom of the mounting frame to connect the receiving cavity and the airbag. The extinguishing agent is injected into the receiving cavity, and then filled into the airbag through the connecting hole. The airbag is kept in a taut state and is in close contact with the mounting plate or the bottom of the equipment.

[0013] Preferably, the mounting cover is connected to a connecting pipe, and a pressure tank is installed after the connecting pipe passes through the box body. The pressure tank is used to store fire extinguishing agent.

[0014] Preferably, a piston plate is provided at the bottom of the pressure tank by a spring.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. The present invention uses multiple partitions to form multiple independent chambers inside the box, and each chamber has a corresponding door to achieve physical isolation and independent control of each chamber. When an electrical fault occurs in a single chamber and causes a fire, the partitions can effectively block the spread of flames and high-temperature smoke across the chambers, control the fire in a single chamber, reduce the risk of overall equipment damage, reduce the occurrence of related safety accidents, and improve the fire protection level of the metering box.

[0016] 2. The removable transparent sealing plate installed in the chamber of this invention can seal the chamber to form a closed inert gas environment. The inert gas does not support combustion and can effectively reduce the oxygen concentration in the chamber, thereby suppressing fires caused by electrical components due to short circuits, overloads and other faults. At the same time, it can slow down the oxidation and aging of electrical components, extend the service life of the equipment, and reduce the frequency and cost of equipment maintenance.

[0017] 3. The gas circulator installed on the housing of this invention realizes the circulation of inert gas in the chamber through the connecting pipe at the bottom of the housing. The inlet end of the connecting pipe is connected to the bottom of the chamber, and the outlet end extends to the upper part of the chamber. It can transport the low temperature inert gas at the bottom of the chamber to the upper part to form a circulating airflow, which efficiently removes the heat generated by the operation of electrical components, avoids excessive temperature in the housing, prevents high temperature from affecting the normal operation of components, and ensures the long-term stable operation of the metering box. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure between the box body and the transparent sealing plate of the present invention.

[0020] Figure 3 This is a schematic diagram of the structure of the transparent sealing plate of the present invention.

[0021] Figure 4 This is a structural schematic diagram of the box body and partition of the present invention.

[0022] Figure 5 This is a schematic diagram of the partition structure of the present invention.

[0023] Figure 6 This is a cross-sectional view of the partition of the present invention.

[0024] Figure 7 This is the present invention. Figure 6 A magnified view of part A.

[0025] Figure 8 This is a structural diagram of the relationship between the housing and the fixed-point fire extinguisher of the present invention.

[0026] Figure 9 This is an exploded view of the fixed-point fire extinguisher of the present invention.

[0027] Figure 10 This is a cross-sectional view of the fixed-point fire extinguisher of the present invention.

[0028] Figure 11 This is the present invention. Figure 10 A magnified view of section B.

[0029] Figure 12 This is a schematic diagram of the structure between the mounting cover and the pressure tank of the present invention.

[0030] Explanation of reference numerals in the attached drawings: 1. Box body; 2. Partition; 3. Chamber; 31. Box door; 4. Transparent sealing plate; 41. Sealed area; 42. Operating port; 43. Flame-retardant gloves; 5. Gas circulator; 51. Connecting pipe; 52. Cavity; 53. Through hole; 54. Partition plate; 55. Air inlet chamber; 6. Fixed-point fire extinguisher; 61. Mounting frame; 62. Mounting area; 63. Airbag; 64. Mounting plate; 641. Opening; 65. Mounting cover; 651. Receiving cavity; 66. Connecting hole; 67. Connecting pipe; 68. Pressure tank; 69. Piston plate. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 1 to 12 This application will be described in further detail.

[0032] This application discloses a partitioned fireproof intelligent power metering box. It relies on a transparent sealing plate to create an inert and sealed environment to prevent fire at the source. It is equipped with flame-retardant gloves to enable safe live maintenance. Furthermore, it uses a gas circulator to drive inert gas circulation and convection for heat dissipation. The overall structure is reasonable and the protection is comprehensive, which improves the operational safety and maintenance convenience of power metering equipment.

[0033] Example 1: Reference Figure 1 and Figure 2 As shown, a zoned fireproof intelligent power metering box includes a box body 1. The box body 1 is equipped with multiple partitions 2, which divide the box body 1 into multiple chambers 3. Each chamber 3 corresponds to an independent fireproof area, which can be used to arrange the power circuits or related functional modules of different users. The zoned structure physically blocks the path of fire propagation. Even if a fire occurs in a certain chamber 3, the flames and high-temperature smoke will be blocked by the partitions 2 and cannot spread to other chambers 3 quickly, thereby limiting the scope of fire impact, reducing the risk of overall equipment burnout and related accidents, and achieving the purpose of zoned fireproofing.

[0034] The enclosure 1 is equipped with a door 31 that corresponds to each of the chambers 3, providing a dedicated opening channel for each independent chamber 3. Operators can open the door 31 of the corresponding chamber 3 individually for inspection and maintenance work according to the operation and maintenance needs, without having to open the entire enclosure 1. This avoids exposing all chambers 3 due to opening the entire enclosure, reduces interference from the external environment to non-operation and maintenance areas, and further enhances the independence and fireproof isolation effect of each chamber 3.

[0035] Reference Figure 3 and Figure 4 As shown, a removable transparent sealing plate 4 is installed inside the chamber 3. The transparent sealing plate 4 seals the chamber 3 to form a sealed area 41. The transparent sealing plate 4 seals the chamber 3 to form a closed environment. After sealing, inert gas is filled into the sealed area 41, so that the inside of the chamber 3 forms a closed inert gas environment. Since inert gas does not support combustion, it can effectively reduce the oxygen concentration in the chamber 3, suppress the possibility of fire caused by electrical components due to short circuits, overloads and other faults, and at the same time slow down the oxidation and wear of electrical components, and extend the service life of the equipment.

[0036] To ensure safe maintenance while the circuit is energized and to prevent damage to the sealed area 41, inert gas leakage, and intrusion of external moisture caused by opening the enclosure door 31 or removing the transparent sealing plate 4, an operating port 42 is provided on the transparent sealing plate 4. Flame-retardant gloves 43 are installed inside the operating port 42, allowing operators to perform maintenance work while the circuit is energized. When maintenance work needs to be performed on the energized components inside the chamber 3, operators do not need to open the enclosure door 31 or remove the transparent sealing plate 4; they only need to place their hands inside the flame-retardant gloves 43 and complete various maintenance operations within the sealed area 41 through the gloves. The flame-retardant gloves 43 serve two purposes: firstly, to physically isolate the operator from the energized components, ensuring the operator's personal safety; and secondly, to maintain the airtightness of the sealed area 41, preventing inert gas leakage and the intrusion of external moisture, dust, and other impurities, thus ensuring a stable inert gas environment within the chamber 3.

[0037] Fire prevention is achieved by partitioning the chamber into three zones using partition 2, sealing with transparent sealing plate 4 and filling with inert gas, and safe operation and maintenance with live energized equipment using flame-retardant gloves 43 and operating ports 42. This solves the protection loopholes in traditional metering boxes during maintenance and effectively improves the operational safety and practicality of the electricity metering box.

[0038] Reference Figure 5 , Figure 6 and Figure 7 As shown, the electrical components in chamber 3 continuously generate heat during operation. If the heat accumulates for a long time, it will cause the temperature inside the box 1 to be too high. The box 1 is equipped with a gas circulator 5. The gas circulator 5 actively guides the circulation of inert gas, which can remove the heat generated by the electrical components in time, effectively control the temperature inside the box 1, avoid damage to the equipment due to excessive temperature, and ensure the long-term stable operation of the equipment.

[0039] Specifically, the housing 1 is provided with a connecting pipe 51, which connects the top and bottom of the same chamber 3. The air inlet of the connecting pipe 51 is connected to the bottom of the chamber 3, and the air outlet extends to the upper part of the corresponding chamber 3, thereby transporting the low-temperature gas at the bottom of the chamber 3 to the upper part to form a circulating airflow to dissipate heat. The partition 2 is constructed with a cavity 52, and through holes 53 are opened on both sides of the cavity 52. ​​The cavity 52 is connected to the adjacent cavities 52 on both sides through the through holes 53.

[0040] One end of the connecting pipe 67 is connected to the cavity 52 from the top. The air pump installed in the connecting pipe 51 serves as the power core for gas transportation. Through active suction and pressurization technology, the air pump drives the low-temperature inert gas at the bottom of the cavity 3 into the connecting pipe 51 and then transports it to the upper part of the cavity 3, forming a continuous and stable circulating airflow, which in turn removes the heat generated by the operation of the electrical components in the cavity 3.

[0041] When the circulating airflow flows in chamber 3, it comes into full contact with the surface of the electrical components and absorbs the heat generated by the components. Then, the airflow exchanges heat in chamber 3 during the circulation process, transferring the heat to the outside of the housing 1. At the same time, the thermal conductivity of the inert gas itself helps to accelerate the heat dissipation, effectively preventing the temperature inside the housing 1 from getting too high and ensuring the long-term stable operation of the equipment.

[0042] Reference Figure 6 and Figure 7 As shown, the partition 2 has a cavity 52, and through holes 53 are provided on both sides of the cavity 52. ​​The cavity 52 is connected to the adjacent cavities 52 on both sides through the through holes 53. One end of the connecting pipe 67 is connected to the cavity 52 from the top. The connecting pipe 67 introduces the inert gas delivered by the gas circulator 5 into the cavity 52 of the partition 2. Then, the inert gas flows into the adjacent chambers 3 on both sides through the through holes 53 on both sides of the cavity 52. ​​At the same time, the gas in each chamber 3 can also enter the cavity 52 of the partition 2 through the through holes 53. A partition plate 54 is provided in the cavity 52, which divides the cavity 52 into two air inlet chambers 55. The two air inlet chambers 55 are connected to the corresponding chamber 3 on their respective sides through the through holes 53. The connecting pipe 51 enters the cavity 52 from the top of the partition 2 and connects to the two air inlet chambers 55. The inert gas that has been cooled enters the two air inlet chambers 55 and then enters the chamber 3 connected to it through the through holes 53.

[0043] Since the connecting pipe 51 connects to both air inlet chambers 55, cryogenic gas can flow into both air inlet chambers 55 simultaneously. Subsequently, the cryogenic gas in each of the two air inlet chambers 55 flows into the adjacent chamber 3 on one side through their respective through holes 53, realizing the delivery of cryogenic gas to each chamber 3, while carrying away the heat generated by the operation of electrical components in the chamber 3, completing the heat dissipation cycle. This ensures the orderly flow of inert gas between adjacent chambers 3, and works with the gas circulator 5 to maintain a stable temperature inside the enclosure 1. The partition plate 54 separates the air inlet chambers 55, ensuring that the gas delivery to the two chambers 3 does not interfere with each other. The mutual flow of inert gas between adjacent chambers 3, combined with the power of the gas circulation, ensures that the inert gas in the entire enclosure 1 can circulate comprehensively and evenly, thereby ensuring that the heat in each chamber 3 can be effectively carried away, maintaining a stable temperature inside the enclosure 1, while also taking into account the fireproof function of the partition plate 2, without compromising the physical isolation effect of each chamber 3.

[0044] Example 2: Reference Figure 8 , Figure 9 , Figure 10 and Figure 11 Based on Example 1, a fixed-point fire extinguisher 6 is installed in the chamber 3. If an electrical fault occurs in the chamber 3 during equipment operation and causes a fire, the fixed-point fire extinguisher 6 can accurately locate the fire and release the extinguishing medium in a directional manner with the fire point as the center. It can effectively extinguish the fire source, quickly suppress the initial fire, accurately block the spread of the fire, and improve the efficiency of emergency response to fire inside the chamber 3.

[0045] Specifically, the fixed-point fire extinguisher 6 includes an installation frame 61 set inside the chamber 3. The installation frame 61 has several evenly arranged installation areas 62. An airbag 63 is set inside the installation area 62. The airbag 63 is filled with fire extinguishing agent. An installation plate 64 is set on the installation frame 61. The installation plate 64 has an opening 641 corresponding to the installation area 62. The installation plate 64 can be directly used to mount and install various electrical equipment.

[0046] Under normal conditions, the airbag 63 remains intact and sealed, and the extinguishing agent is stably stored inside the airbag 63. When the electrical equipment in the corresponding location catches fire, the high temperature will cause the airbag 63 in the corresponding location to rupture due to heat, and the extinguishing agent inside will be released immediately and sprayed out in a directional manner with the fire point as the center, so as to achieve precise fire extinguishing and quickly extinguish the initial fire source.

[0047] One side of the mounting frame 61 is provided with a mounting cover 65, which seals the mounting cover 65 with the mounting frame 61 to form a receiving cavity 651. The bottom of the mounting frame 61 has a connecting hole 66 that connects the receiving cavity 651 and the airbag 63. The extinguishing agent is injected into the receiving cavity 651 and fills the airbag 63 through the connecting hole 66. The airbag 63 is kept in a taut state and is in close contact with the mounting plate 64 or the bottom of the equipment, so that the airbag 63 is always in a taut state and is in close contact with the mounting plate 64 or the bottom of the electrical equipment. Once a fire occurs with high temperature or flame, the airbag 63 will rupture (or be punctured by a mechanical triggering device). Due to the pressure in the liquid receiving cavity 651, the extinguishing agent will gush out instantly and spray directly at the heat source.

[0048] All airbags 63 are connected to the receiving cavity 651 through the connecting hole 66, forming an interconnected storage and delivery structure. If any airbag 63 ruptures due to exposure to high temperature and open flame, the remaining intact airbags 63 will quickly contract due to their own elasticity, squeezing and pushing the extinguishing agent stored inside into the receiving cavity 651. The extinguishing agent will then be uniformly guided and delivered to the ruptured airbag 63 through the receiving cavity 651, continuously replenishing the sprayed extinguishing agent to the heat source of the fire, continuously extinguishing the fire source, enhancing the fixed-point fire extinguishing effect, and ensuring that the fire extinguishing operation is fully and thoroughly carried out.

[0049] Reference Figure 5 , Figure 6 and Figure 7 As shown, a connecting pipe 67 is connected to the mounting cover 65. The connecting pipe 67 passes through the housing 1 and is connected to a pressure tank 68. The pressure tank 68 is used to store the extinguishing agent. A piston plate 69 is pressed at the bottom of the pressure tank 68 by a spring. Under normal conditions, the piston plate 69 in the pressure tank 68 generates a continuous and stable pressure on the extinguishing agent in the tank under the elastic pressure of the spring, ensuring that the containment cavity 651 and each airbag 63 always maintain the preset pressure, ensuring that the extinguishing agent is full and leak-free. When any airbag 63 encounters high temperature... After the open flame ruptures, the remaining intact airbags 63 rapidly contract due to their own elasticity, squeezing and pushing the extinguishing agent stored inside into the receiving cavity 651. At the same time, the piston plate 69 in the pressure tank 68 is pushed downward under the pressure of the spring, continuously transporting the extinguishing agent stored in the tank to the receiving cavity 651 through the connecting pipe 67. Then, the extinguishing agent is uniformly guided and transported to the ruptured airbag 63 through the receiving cavity 651, continuously replenishing the sprayed extinguishing agent to the heat source of the fire, continuously extinguishing the fire source, and enhancing the fixed-point fire extinguishing effect.

[0050] In addition, if no high-temperature rupture occurs, the airbag 63 can be punctured by a mechanical triggering device. Relying on the pressure of the containment cavity 651 and the pressure tank 68, the extinguishing agent can be released instantly and sprayed directly at the heat source to achieve rapid and targeted fire extinguishing. The mounting frame 61 is provided with a mounting plate 64, which has an opening 641 corresponding to the mounting area 62. The mounting plate 64 is used to install electrical equipment without affecting the normal installation and operation of the electrical equipment.

[0051] The implementation principle of this invention is as follows: (1) Fix the mounting frame 61 in the chamber 3. Divide the mounting frame 61 into several uniform mounting areas 62. Place the airbag 63 in each mounting area 62. Fit the mounting cover 65 to the mounting frame 61 to seal it. The two together form a sealed receiving cavity 651 to ensure no leakage. Open the connection hole 66 at the bottom of the mounting frame 61 so that the receiving cavity 651 is accurately connected to the airbag 63 in each mounting area 62. At the same time, fix the mounting plate 64 on the mounting frame 61. The mounting plate 64 has an opening 641 corresponding to the mounting area 62 for the installation of subsequent electrical equipment. Ensure that the mounting plate 64 does not block the airbag 63 and does not affect the subsequent spraying of extinguishing agent.

[0052] (2) Connect the connecting pipe 67 on the mounting cover 65. After the connecting pipe 67 passes through the box 1, it is connected to the external pressure tank 68. The pressure tank 68 is specially used to store the backup fire extinguishing agent. At the bottom of the pressure tank 68, the piston plate 69 is pressed by a spring, so that the spring is in a compressed state and generates a continuous downward elastic pressure on the piston plate 69. Add enough fire extinguishing agent into the pressure tank 68. The fire extinguishing agent flows into the receiving cavity 651 through the connecting pipe 67, and then fills all the airbags 63 through the connecting hole 66, so that the airbags 63 are kept in a tight state and tightly attached to the mounting plate 64 or the bottom of the electrical equipment. At this time, the whole system is in a sealed and pressure-stabilized state.

[0053] (3) During daily equipment operation, the piston plate 69 in the pressure tank 68 continuously applies pressure to the extinguishing agent in the tank under the action of spring pressure, ensuring that the containment cavity 651, the connecting pipe 67 and each airbag 63 always maintain the preset pressure, which not only ensures the stable storage of the extinguishing agent without leakage, but also prepares the power for rapid spraying during subsequent fire extinguishing. At the same time, the electrical equipment on the mounting plate 64 operates normally, the airbag 63 is close to the bottom of the equipment, does not affect the normal operation of the equipment, and the status of the airbag 63 can be directly observed through the transparent sealing plate 4.

[0054] (4) When the electrical equipment in the chamber 3 malfunctions and catches fire, producing high temperature or open flame, the airbag 63 at the corresponding fire location will rupture due to high temperature. If it does not rupture naturally, the airbag 63 can also be punctured by a mechanical triggering device. After the airbag 63 ruptures, the pressure in the containment cavity 651 is released instantly, and the fire extinguishing agent stored inside will immediately gush out from the rupture point and spray directly onto the fire heat source to achieve initial fixed-point fire extinguishing and quickly suppress the spread of fire.

[0055] (5) Since all airbags 63 are connected to the receiving cavity 651 through the connecting hole 66, when one airbag 63 ruptures, the remaining intact airbags 63 will rely on their own elastic contraction to squeeze the extinguishing agent inside into the receiving cavity 651. At the same time, the piston plate 69 in the pressure tank 68 is pushed downward under the action of the spring pressure, and the spare extinguishing agent in the tank is continuously transported to the receiving cavity 651 through the connecting pipe 67. Then, it is guided to the position of the ruptured airbag 63 through the receiving cavity 651 to continuously spray the extinguishing agent into the heat source, ensuring that the fire source is completely extinguished, avoiding reignition, and ensuring that the fire extinguishing effect is sufficient and reliable.

[0056] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A partitioned fireproof intelligent power metering box, comprising a box body (1), wherein multiple partitions (2) are provided inside the box body (1), the partitions (2) dividing the box body (1) into multiple chambers (3), characterized in that: The chamber (3) is provided with a removable transparent sealing plate (4), which seals the chamber (3) to form a sealed area (41). A gas circulator (5) is installed on the box (1). The gas circulator (5) is used to guide the inert gas in the chamber (3) to circulate and remove heat, so as to avoid the temperature inside the box (1) from being too high. A connecting pipe (51) is provided on the box (1). The connecting pipe (51) connects the top and bottom of the same chamber (3). The air inlet of the connecting pipe (51) is connected to the bottom of the chamber (3), and the air outlet extends to the upper part of the corresponding chamber (3), thereby transporting the low temperature gas at the bottom of the chamber (3) to the upper part to form a circulating airflow to dissipate heat.

2. The partitioned fireproof intelligent power metering box according to claim 1, characterized in that: The partition (2) has a cavity (52) inside, and through holes (53) are provided on both sides of the cavity (52). The cavity (52) is connected to the adjacent cavities (52) on both sides through the through holes (53). One end of the connecting tube (67) is connected to the cavity (52) from the top.

3. The partitioned fireproof intelligent power metering box according to claim 2, characterized in that: A partition plate (54) is provided inside the cavity (52), which divides the cavity (52) into two air inlet chambers (55). The two air inlet chambers (55) are connected to the corresponding chamber (3) on their respective sides through through holes (53). The connecting pipe (51) enters the cavity (52) from the upper end of the partition (2) and connects to the two air inlet chambers (55). The gas that has been cooled enters the two air inlet chambers (55) and then enters the cavity (3) connected to it through the through hole (53).

4. A zoned fireproof intelligent energy metering box according to claim 1, characterized in that: The chamber (3) is equipped with a fixed-point fire extinguisher (6), which will extinguish the fire at the point of ignition. The fixed-point fire extinguisher (6) includes an installation frame (61) set in the chamber (3), the installation frame (61) is constructed with several uniform installation areas (62), the installation area (62) is provided with an airbag (63), and the airbag (63) is sealed with fire extinguishing agent.

5. A zoned fireproof intelligent power metering box according to claim 4, characterized in that: The mounting frame (61) is provided with a mounting plate (64), and the mounting plate (64) is provided with an opening (641) corresponding to the mounting area (62). The mounting plate (64) is used to install electrical equipment.

6. A zoned fireproof intelligent energy metering box according to claim 5, characterized in that: The mounting frame (61) has a mounting cover (65) on one side, and the mounting cover (65) and the mounting frame (61) are sealed to form a receiving cavity (651). The bottom of the mounting frame (61) has a connecting hole (66) that connects the receiving cavity (651) and the airbag (63). The extinguishing agent is injected into the containment chamber (651), and then filled into the airbag (63) through the connection hole (66). The airbag (63) is kept taut and attached to the mounting plate (64) or the bottom of the equipment.

7. A zoned fireproof intelligent power metering box according to claim 6, characterized in that: The mounting cover (65) is connected to a connecting pipe (67), and the connecting pipe (67) passes through the box (1) and is connected to a pressure tank (68), which is used to store fire extinguishing agent.

8. A zoned fireproof intelligent power metering box according to claim 7, characterized in that: A piston plate (69) is installed at the bottom of the pressure tank (68) by a spring.

9. A zoned fireproof intelligent power metering box according to claim 1, characterized in that: An operating port (42) is provided on the transparent sealing plate (4), and a flame-retardant glove (43) is installed inside the operating port (42) for operators to perform maintenance work in a live state.

Images