Looped network switch cabinet

Abstract

The invention relates to a looped network switch cabinet, and belongs to the technical field of looped network switch cabinets. The cabinet comprises a cabinet body, an air inlet chamber and an electric appliance chamber are arranged in the cabinet body, and an electric appliance element is arranged in the electric appliance chamber; an air inlet communicated with the air inlet cavity is formed in the side wall of the cabinet body, an air suction fan is arranged in the air inlet cavity, a plurality of horizontal partition plates are further arranged in the air inlet cavity, each horizontal partition plate comprises a dust removal layer and a water removal layer, and a fire extinguishing mechanism is further arranged in the cabinet body and comprises a fire extinguishing agent cavity and a plurality of fire extinguishing pipelines communicated with the fire extinguishing agent cavity; the fire extinguishing pipeline is provided with fire extinguishing agent outlets, all the fire extinguishing agent outlets are arranged towards all the rows of electric appliance elements, valves are installed in the fire extinguishing pipeline, temperature sensors are arranged beside all the rows of electric appliance elements, and all the temperature sensors are in control connection with the corresponding valves. Moisture in air entering the cabinet body can be reduced, potential safety hazards are reduced, fire can be extinguished in time when electrical components are on fire, and loss is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of ring network switch cabinets, and in particular to a ring network switch cabinet. Background Art

[0002] Ring network switchgear is an electrical device in which a group of high-voltage switchgear is installed in a steel plate metal cabinet or made into an assembled interval ring network power supply unit. Its core part adopts load switches and fuses. It has the advantages of simple structure, small size, low price, and can improve power supply parameters and performance as well as power supply safety.

[0003] The ring network switch cabinet will generate heat during operation, especially in summer. If the ring network switch cabinet does not dissipate heat well, it will cause the internal electrical components to overheat, thus affecting their performance and service life. In order to improve the heat dissipation capacity of the ring network switch cabinet, a structure for auxiliary heat dissipation is generally added to the ring network switch cabinet. For example, a ring network switch cabinet disclosed in the patent with authorization announcement number CN213753729U includes a cabinet body, and the top and bottom ends of the inner wall of the cabinet body are symmetrically welded with T-shaped rods, and the T-shaped rod is rotatably connected to the inside of the T-shaped rod. The edge of one end of the rotating rod is welded with a rotating fan blade, and the edge of the other end of the rotating rod is welded with a rotating conical wheel. The outer surface edge of the rotating conical wheel is meshed and connected with a matching conical wheel, and a rotating round rod is welded in the middle of the matching conical wheel. A blowing fan blade is fixedly installed in the middle of the bottom end of the rotating round rod.

[0004] When the ring network switch cabinet is in use, in order to enhance the ventilation effect and dissipate the heat of electrical components inside the ring network switch cabinet, external air enters the ring network switch cabinet through rotating fan blades, and the rotating fan blades rotate and drive the blowing fan blades to rotate through the rotating rod, rotating conical wheel, engaging conical wheel, and rotating round rod. The blowing fan blades blow external air to the electrical components inside the ring network switch cabinet to dissipate the heat of the electrical components.

[0005] Although the ring network switch cabinet can dissipate heat for electrical components, in the rainy summer, the external air is humid, and the external humid air directly enters the ring network switch cabinet for heat dissipation, which will make the interior of the ring network switch cabinet humid, thereby accelerating the corrosion of metal parts in the electrical components and causing the insulation performance of insulating materials to decline, increasing the risk of short circuit and leakage of equipment, and in severe cases, the short circuit problem may cause the electrical components to catch fire, causing a series of safety hazards and irreparable losses. Summary of the invention

[0006] The present invention provides a ring network switch cabinet to solve the technical problem that the ring network switch cabinet in the prior art directly sucks external humid air into the ring network switch cabinet for ventilation and heat dissipation, which makes the equipment prone to safety hazards such as short circuit, leakage, and electrical fire, causing serious losses.

[0007] In order to solve the above problems, the present invention provides a ring network switch cabinet adopting the following technical solutions: A ring network switch cabinet comprises a cabinet body, wherein a plurality of rows of electrical components are arranged in an upper and lower interval, wherein an air intake chamber and an electrical chamber are arranged in a front-to-back direction, wherein the top of the air intake chamber is connected to the top of the electrical chamber through a gas channel, and the electrical components are located in the electrical chamber; An air inlet connected to the air inlet chamber is provided on the side wall of the cabinet, and an air suction fan for sucking external air into the air inlet chamber from the air inlet is provided in the air inlet chamber. A plurality of horizontal partitions arranged at intervals from top to bottom are also provided in the air inlet chamber, and the horizontal partition is located above the air suction fan. The horizontal partition includes a dust removal layer and a water removal layer arranged in sequence from top to bottom, and a vent hole penetrating from top to bottom is also provided on the horizontal partition for air flow to pass through. The plurality of horizontal partitions divide the air inlet chamber into a plurality of filter chambers arranged in sequence from top to bottom, and the vent holes in any two adjacent horizontal partitions are respectively distributed at the left and right ends of the filter chamber between the two horizontal partitions; A fire extinguishing mechanism is also provided in the cabinet, which includes a fire extinguishing agent chamber for storing fire extinguishing agent and a plurality of fire extinguishing pipelines connected to the fire extinguishing agent chamber. The fire extinguishing pipeline has a fire extinguishing agent outlet, and each fire extinguishing agent outlet is arranged toward each row of electrical components. A valve for controlling the on and off of the fire extinguishing pipeline is installed in the fire extinguishing pipeline. A temperature sensor is provided on the side of each row of electrical components, and each temperature sensor is respectively connected to the valve control in the corresponding fire extinguishing pipeline. When the temperature sensor detects that the temperature reaches the set value, the valve opens so that the fire extinguishing agent outlet sprays the fire extinguishing agent toward the corresponding electrical component.

[0008] By adopting the above technical scheme, the suction fan draws external air into the air intake chamber from the air inlet, and the air passes through the air holes on each horizontal partition in turn, and moves upward in a serpentine shape in each filter chamber, so that the air can stay in each filter chamber for a longer time, so that the air entering the filter chamber can fully contact the dehydration layer and the dust removal layer, so that the moisture in the air is fully absorbed by the dehydration layer, and the dust in the air is fully absorbed by the dust removal layer. Finally, the dry air that has been dehydrated and dusted enters the electrical chamber through the gas channel and is blown onto the electrical components to dissipate heat for the electrical components, which can prevent the air blown onto the electrical components from being relatively humid, causing safety hazards such as short circuit and leakage inside the ring network switch cabinet. When the ring network switch cabinet is used in an extremely hot and humid environment, the electrical components may heat up severely, and the air may still contain moisture after passing through each dehydration layer. Under the combined effect of these factors, the electrical components are still at risk of short circuit and fire. By arranging a fire extinguishing mechanism in the cabinet, fire extinguishing agent can be sprayed on the electrical components to extinguish the fire when they catch fire, thereby avoiding the spread of fire and reducing losses, adding a layer of safety protection for the ring network switch cabinet.

[0009] Furthermore, the cabinet is provided with vertical baffles and vertical partitions which are parallel to each other and spaced apart in the front-to-back direction. The air intake chamber is enclosed between the vertical baffles and the side walls of the cabinet, and the electrical appliance chamber is enclosed between the vertical baffles and the vertical partitions. The vertical baffles have an inner cavity, and the inner cavity of the vertical baffles forms the fire extinguishing agent chamber. Liquid carbon dioxide is stored in the fire extinguishing agent chamber as a fire extinguishing agent.

[0010] By adopting the above technical solution, the inner cavity of the vertical baffle is used as a fire extinguishing agent chamber, and liquid carbon dioxide is stored inside. The temperature of the liquid carbon dioxide is relatively low. If the external ambient temperature is high, the temperature of the air entering the air intake chamber is also high. The air in the air intake chamber can be cooled when it contacts the outer wall of the vertical baffle, so that the air enters the electrical chamber after being cooled, which has a better heat dissipation effect on the electrical components.

[0011] Furthermore, a through hole is provided on the top of the vertical baffle plate, which passes through the top and the bottom of the vertical baffle plate, and the through hole forms the gas channel.

[0012] Furthermore, a cooling mechanism is installed on the cabinet, and the cooling mechanism includes a circulation pipeline, a pump body and a refrigeration unit. The inlet end and the outlet end of the circulation pipeline are both connected to the vertical baffle and communicated with the fire extinguishing agent chamber. The pump body and the refrigeration unit are both arranged in the flow path of the circulation pipeline. The pump body is used to pump the liquid carbon dioxide in the fire extinguishing agent chamber to the refrigeration unit for cooling, and then pump the cooled liquid carbon dioxide back to the fire extinguishing agent chamber.

[0013] By adopting the above technical scheme, the pump body pumps the liquid carbon dioxide in the fire extinguishing agent chamber to the refrigeration unit for cooling, and then pumps the cooled liquid carbon dioxide to the fire extinguishing agent chamber, so that the carbon dioxide in the fire extinguishing agent chamber is always at a low temperature, which is convenient for cooling the air in the air intake chamber and the electrical components in the electrical chamber.

[0014] Furthermore, the multiple fire extinguishing pipelines in the fire extinguishing mechanism are all located in the electrical chamber and respectively located above each row of electrical components. The fire extinguishing pipeline includes two end pipe sections that are arranged at intervals on the left and right and extend in the front-to-back direction, and a connecting pipe section connected between one ends of the two end pipe sections that are away from the vertical baffle. The two end pipe sections are connected to the vertical baffle and are connected to the fire extinguishing agent chamber. The connecting pipe section is connected to the two end pipe sections. A discharge channel connected to the connecting pipe section is provided at the bottom of the connecting pipe section. The discharge channel is inclined from top to bottom toward the corresponding electrical component, and the discharge channel forms the fire extinguishing agent outlet.

[0015] Furthermore, the top and bottom of the vertical baffle are provided with sealing plates that can move forward and backward, and the two sealing plates are located below the gas channel. The two sealing plates can move toward the vertical partition to enclose a closed space in the electrical chamber that covers each electrical component and each fire extinguishing agent outlet.

[0016] By adopting the above technical solution, when an electrical component catches fire and needs to be extinguished, the sealing plate is first moved toward the vertical partition to form a closed space, and then carbon dioxide is sprayed to extinguish the fire, which can prevent external oxygen from entering and achieve a better fire extinguishing effect.

[0017] Furthermore, each row of electrical components is installed on the vertical baffle, the cabinet body has a detachable left cabinet wall or right cabinet wall, and the vertical baffle is installed in the cabinet body for left and right guiding sliding so that the vertical baffle can move to the outside of the cabinet body in the direction toward the left cabinet wall or the right cabinet wall.

[0018] By adopting the above technical solution, the vertical baffle can be moved left and right, and the left cabinet wall or the right cabinet wall of the cabinet can be removed. The left cabinet wall or the right cabinet wall can be removed and then the vertical baffle can be moved out of the cabinet to facilitate the inspection and maintenance of the electrical components installed on the vertical baffle.

[0019] Furthermore, a support is provided in the cabinet, the vertical baffle is located above the support, and a plurality of rollers are provided on the top of the support, which are arranged at intervals on the left and right and whose axes extend in the front-to-back direction, and the rollers are used to support the vertical baffle.

[0020] By adopting the above technical solution, rollers are installed on the top of the support to facilitate the movement of the vertical baffle on the support, making it easier to move the vertical baffle.

[0021] Furthermore, the water removal layer is made of a water-absorbing sponge, and the dust removal layer is made of an activated carbon plate.

[0022] The beneficial effects of the ring network switch cabinet provided by the present invention are: the air sucked into the cabinet is dehumidified and dusted before being blown onto the electrical components for heat dissipation, thereby avoiding the contact of moist air with the electrical components to cause short circuits, leakage, fire and other safety hazards, and avoiding the accumulation of dust in the cabinet to cause electrical components to malfunction. By setting up a fire extinguishing mechanism, in extreme environments, the electrical components can be extinguished after they catch fire, and timely remediation can be carried out to reduce losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein: Figure 1 A schematic diagram of the structure of a ring network switch cabinet provided by the present invention Figure 1 ; Figure 2 A schematic diagram of the structure of a ring network switch cabinet provided by the present invention Figure 2 ; Figure 3A schematic diagram of the structure of a ring network switch cabinet provided by the present invention Figure 3 ; Figure 4 A schematic diagram of the structure of a ring network switch cabinet provided by the present invention Figure 4 ; Figure 5 A schematic diagram of the structure of a ring network switch cabinet provided by the present invention Figure 5 ; Figure 6 A schematic structural diagram of a support in a ring network switch cabinet provided by the present invention.

[0024] Description of reference numerals: 1. Cabinet; 101. Air outlet; 102. Air inlet; 103. Air inlet chamber; 104. Electrical chamber; 105. Filter chamber; 2. Shell; 3. Vertical baffle; 301. Gas channel; 302. Fire extinguishing agent chamber; 4. Horizontal partition; 401. Vent; 5. Drive member; 6. Horizontal mounting plate; 7. Suction fan; 8. Electrical component; 9. Fire extinguishing pipeline; 901. End pipe section; 902. Connecting pipe section; 903. Fire extinguishing agent outlet; 10. Support; 11. Circulation pipeline; 12. Vertical partition; 13. Connecting plate; 14. Closing plate; 15. Roller; 16. Side plate; 17. Support block. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0026] The following is one embodiment of a ring network switch cabinet provided by the present invention: like Figure 1-Figure 5 As shown, a ring network switch cabinet includes a cabinet body 1, a support 10, a vertical baffle 3, a vertical partition 12, a horizontal partition 4, an air intake fan 7, an electrical component 8, a fire extinguishing mechanism, a sealing plate 14 and a cooling mechanism.

[0027] like Figure 1 As shown, the cabinet body 1 is placed upright on a horizontal ground, an air inlet 102 is provided at the bottom of the front cabinet wall and the rear cabinet wall of the cabinet body 1, an air outlet 101 is provided at the bottom of the left cabinet wall and the right cabinet wall, and the right cabinet wall is connected to the cabinet body 1 by bolts. When the bolts are unscrewed, the right cabinet wall can be removed from the cabinet body 1.

[0028] like Figure 3As shown, there are four supports 10, which are arranged at equal intervals at the bottom of the inner cavity of the cabinet 1. There is a gap between the support 10 located at the front side and the front wall of the cabinet 1, and there is a gap between the support 10 located at the rear side and the rear wall of the cabinet 1. The sizes of the two gaps are equal. Figure 6 As shown, a plurality of rollers 15 are arranged at intervals on the left and right sides at the top of each support 10, and the rotation axis of the rollers 15 extends along the front-rear direction.

[0029] like Figure 5 As shown, there are two vertical baffles 3, which are arranged symmetrically front and back, and are respectively located above the frontmost support 10 and the rearmost support 10. The interior of the vertical baffle 3 is hollow to form an inner cavity, and the top of the vertical baffle 3 is provided with a gas channel 301 running through left and right.

[0030] like Figure 5 As shown, there are two vertical partitions 12, and the two vertical partitions 12 are symmetrically arranged between the two vertical baffles 3. Figure 3 As shown, each vertical baffle 3 is vertically connected to a side plate 16 at both ends, and the front and rear ends of the side plate 16 extend to the inner side wall of the cabinet 1 and the vertical partition 12 to which the corresponding vertical baffle 3 is close, respectively. The two left and right opposite side plates 16, the vertical baffle 3 and the vertical partition 12 enclose an electrical chamber 104, and the two left and right opposite side plates 16, the vertical baffle 3 and the side wall of the cabinet 1 enclose an air intake chamber 103. The air intake chamber 103 and the electrical chamber 104 are connected through the gas channel 301, and the above-mentioned air inlet 102 is connected to the air intake chamber 103 on the corresponding side. The bottoms of the vertical partition 12, the vertical baffle 3 and the side plate 16 are fixedly connected to a connecting plate 13, and the connecting plate 13 is slidably assembled on the support 10 in a left and right guiding manner, and the bottom surface of the connecting plate 13 is in contact with the roller 15 on the support 10.

[0031] like Figure 2 , Figure 5 As shown, there are multiple horizontal partitions 4, and each air inlet chamber 103 is provided with multiple horizontal partitions 4 arranged at equal intervals up and down, and the multiple horizontal partitions 4 in the air inlet chamber 103 are all located above the air inlet 102 on the corresponding side. The multiple horizontal partitions 4 in the air inlet chamber 103 divide the air inlet chamber 103 into multiple filter chambers 105 arranged in sequence up and down, and the filter chamber 105 located at the top is connected to the electrical chamber 104 on the corresponding side through the gas channel 301. Each horizontal partition 4 is provided with a vent 401 that runs through the top and bottom for air flow to pass through, and the vents 401 in any two adjacent horizontal partitions 4 are arranged on the left and right sides of the filter chamber 105 between the two horizontal partitions 4, so that the gas can move upward through each filter chamber 105 in a serpentine shape.

[0032] The horizontal partition 4 is fixedly installed on the corresponding front cabinet wall or rear cabinet wall. The horizontal partition 4 includes a dust removal layer and a moisture removal layer which are arranged in sequence from top to bottom and fit together. The dust removal layer adopts an activated carbon plate, and the moisture removal layer adopts a strong absorbent sponge. During the flow of gas in the filter chamber 105, the moisture removal layer can absorb moisture entrained in the air, and the dust removal layer can remove impurities mixed in the air.

[0033] like Figure 2 , Figure 5 As shown, each of the two air inlet chambers 103 is provided with a group of air suction fan units, which are located above the air inlet 102 on the corresponding side and below the horizontal partition 4 on the corresponding side. Each group of air suction fan units includes a plurality of air suction fans 7 arranged at equal intervals in the left and right directions. The two groups of air suction fan units are respectively connected to the front cabinet wall and the rear cabinet wall. The specific connection method is that the front cabinet wall and the rear cabinet wall are vertically connected with horizontal mounting plates 6 extending left and right, and the horizontal mounting plates 6 are located in the air inlet chamber 103. The two groups of air suction fan units are respectively installed on the two horizontal mounting plates 6.

[0034] like Figure 3 , Figure 4 As shown, the electrical components 8 are arranged in multiple rows, and each electrical chamber 104 is provided with multiple rows of electrical components 8 arranged at equal intervals up and down, and the multiple rows of electrical components 8 in the electrical chamber 104 are fixedly mounted on the vertical baffle 3.

[0035] like Figure 5 As shown, the fire extinguishing mechanism is provided with two groups, which are respectively used to extinguish the electrical components 8 in the two electrical chambers 104. The fire extinguishing mechanism includes a fire extinguishing agent chamber 302, a fire extinguishing pipeline 9, a valve and a temperature sensor.

[0036] The inner cavity of the vertical baffle 3 forms a fire extinguishing agent chamber 302 , and liquid carbon dioxide is stored in the fire extinguishing agent chamber 302 as a fire extinguishing agent.

[0037] like Figure 3 As shown, there are multiple groups of fire extinguishing pipelines 9 , and the multiple fire extinguishing pipelines 9 correspond one-to-one to the multiple rows of electrical components 8 in the electrical chamber 104 , and each fire extinguishing pipeline 9 is located above each row of electrical components 8 .

[0038] like Figure 4As shown, the fire extinguishing pipeline 9 includes an end pipe section 901 and a connecting pipe section 902, and both the end pipe section 901 and the connecting pipe section 902 are square pipes. Two end pipe sections 901 are provided, and the two end pipe sections 901 extend in the front-to-back direction and are arranged at intervals in the left-right direction. The two end pipe sections 901 are connected to the side wall of the vertical baffle 3 facing away from the air inlet chamber 103, and are connected to the fire extinguishing agent chamber 302. The connecting pipe section 902 extends in the left-right direction and is connected between one end of the two end pipe sections 901 facing away from the vertical baffle 3, and the connecting pipe section 902 is connected to the two end pipe sections 901. A discharge channel connected to the connecting pipe section 902 is provided at the bottom of the connecting pipe section 902, and the discharge channel is inclined from top to bottom toward the corresponding electrical component 8, and the discharge channel forms a fire extinguishing agent outlet 903.

[0039] like Figure 3 , Figure 4 As shown, the two end pipe sections 901 in the fire extinguishing pipeline 9 are respectively fitted with the two side panels 16 on the left and right sides of the vertical baffle 3, as shown in FIG. Figure 5 As shown, the connecting pipe section 902 in the fire extinguishing pipeline 9 is in contact with the vertical partition 12 on the corresponding side.

[0040] There are multiple valves, which are not shown in the figure. Each end pipe section 901 is provided with a valve inside. The valve is used to control the on-off of the fire extinguishing pipeline 9. After the valve is opened, the liquid carbon dioxide in the fire extinguishing agent chamber 302 can be converted into gaseous carbon dioxide and sprayed out from the fire extinguishing agent outlet 903.

[0041] There are multiple temperature sensors, which are not shown in the figure. Each row of electrical components 8 is correspondingly provided with a temperature sensor, and each temperature sensor is mounted on the vertical baffle 3 and arranged beside each row of electrical components 8. Each temperature sensor is respectively connected to the valve control in each corresponding fire extinguishing pipeline 9. The temperature sensor is used to detect the temperature at the corresponding electrical component 8. When the temperature detected by the temperature sensor reaches the set value, the valve opens, so that the corresponding fire extinguishing agent outlet 903 sprays the fire extinguishing agent toward the electrical component 8.

[0042] like Figure 5 As shown, there are four sealing plates 14 in total, and two sealing plates 14 are arranged on each vertical baffle 3. The two sealing plates 14 are arranged at intervals up and down and are movably installed on the vertical baffle 3. The sealing plate 14 located at the top is arranged below the gas channel 301 and is opposite to the fire extinguishing pipeline 9 located at the top in the electrical chamber 104, and the sealing plate 14 located at the bottom is arranged below the electrical component 8 located at the bottom in the electrical chamber 104. A support block 17 extending left and right is installed at the bottom of the vertical baffle 3, and the sealing plate 14 located at the bottom is opposite to the support block 17 front and back.

[0043] Two driving members 5 are installed on each vertical baffle 3, which are arranged at intervals in the upper and lower parts. The driving member 5 is a horizontally placed cylinder that can be extended and retracted forward and backward. The sealing plate 14 is connected to the driving output end of the driving member 5. The driving member 5 is connected to the temperature sensor control. When the temperature sensor detects that the temperature reaches the set value, the driving member 5 drives the sealing plate 14 to move toward the corresponding vertical partition 12. The sealing plate 14 located at the top moves to fit with the side wall of the connecting pipe section 902 in the fire extinguishing pipeline 9 at the top of the electrical chamber 104, and the sealing plate 14 located at the bottom moves to fit with the support block 17 at the bottom of the vertical partition 12, so that the two sealing plates 14 isolate a closed space in the electrical chamber 104 to prevent oxygen from entering.

[0044] There are two sets of cooling mechanisms, which are used to cool the liquid carbon dioxide in the two fire extinguishing agent chambers 302 respectively. Figure 4 As shown, the cooling mechanism includes a circulation pipeline 11, a pump body and a refrigeration unit. The circulation pipeline 11 adopts a hose. The circulation pipeline 11 has an inlet end and an outlet end. The inlet end and the outlet end of the circulation pipeline 11 are both connected to the vertical baffle 3 and communicated with the fire extinguishing agent chamber 302. The pump body and the refrigeration unit are both arranged in the flow path of the circulation pipeline 11. The pump body is used to pump the liquid carbon dioxide in the fire extinguishing agent chamber 302 to the refrigeration unit for cooling, and then pump the cooled liquid carbon dioxide back to the fire extinguishing agent chamber 302. A shell 2 is provided on the outer wall of the cabinet 1. The pump body and the refrigeration unit are both located inside the shell 2, not shown in the figure. The refrigeration unit removes heat from the liquid carbon dioxide through four processes of compression, condensation, expansion and evaporation. The refrigeration unit is a prior art, and its detailed structure is not introduced here.

[0045] Since the cooling mechanism circulates and cools the liquid carbon dioxide in the fire extinguishing agent chamber 302, the fire extinguishing agent chamber 302 can be kept at a relatively low temperature. Therefore, when the temperature of the external air sucked into the air intake chamber 103 is high, the air can be cooled by contacting the vertical baffle 3 filled with liquid carbon dioxide, and the cooled air is then blown onto the electrical component 8, which has a better heat dissipation effect on the electrical component 8. At the same time, since the electrical component 8 is installed on the vertical baffle 3, the liquid carbon dioxide in the fire extinguishing agent chamber 302 can also cool the electrical component 8, further improving the heat dissipation effect.

[0046] When the present invention is in use, the air intake fan 7 is started, and the air intake fan 7 draws external air into the air intake chamber 103 through the air inlet 102. The air passes through the air vents 401 on each horizontal partition 4 from bottom to top and passes through each filter chamber 105 in a serpentine shape from bottom to top. When the air flows in the filter chamber 105, the moisture in the air is absorbed by the dehydration layer, and the dust is absorbed by the dust removal layer, and finally becomes drier and cleaner air, which enters the electrical chamber 104 through the gas channel 301, blows onto the electrical components 8, and is then discharged from the air outlet 101 at the bottom of the cabinet 1, thereby achieving heat dissipation. If the electrical component 8 catches fire in an extremely hot and humid environment, the temperature at the electrical component 8 rises, and the temperature sensor beside the electrical component 8 can detect the temperature change. When the temperature sensor detects that the temperature reaches the set value, the driving member 5 drives the sealing plate 14 to move toward the vertical partition 12 to form a closed space. At the same time, the valve in the fire extinguishing pipeline 9 corresponding to the electrical component 8 at this location is opened, and the fire extinguishing agent outlet 903 sprays carbon dioxide gas toward the electrical component 8 on fire, extinguishing the fire in time and reducing the loss caused by the fire. When the electrical component 8 needs to be repaired after long-term use, the right cabinet wall is removed and the vertical baffle 3 is pushed out from the cabinet to expose the electrical component 8 for easy maintenance.

[0047] The present invention can remove dust, moisture and temperature from the external air and then blow it onto the electrical component 8 for heat dissipation. The heat dissipation effect is good and short circuit and leakage caused by the entry of humid air can be avoided. The present invention can also spray out the fire extinguishing agent in time to extinguish the fire when the electrical component 8 catches fire, thereby reducing losses and reducing safety hazards.

[0048] In this embodiment, two vertical baffles 3 and two vertical partitions 12 are provided in the cabinet 1, so that the cabinet 1 has two front-to-back symmetrical air intake chambers 103 and two electrical chambers 104. In other embodiments, only one vertical baffle 3 and one vertical partition 12 are provided in the cabinet 1. In this case, the cabinet 1 has only one air intake chamber 103 and one electrical chamber 104.

[0049] In this embodiment, a cooling mechanism is provided on the cabinet 1 to circulate and cool the fire extinguishing agent in the fire extinguishing agent cavity. In other embodiments, if the ambient temperature of the ring network switch cabinet is relatively low, the cooling mechanism may not be provided.

[0050] In this embodiment, the vertical baffle 3 is installed in the cabinet 1 so as to be movable left and right, and the electrical component 8 can be dragged out with the vertical baffle 3 for maintenance. In other embodiments, the vertical baffle 3 can also be fixedly installed in the cabinet 1, in which case the maintenance process is relatively troublesome.

Claims

1. A ring network switch cabinet, comprising a cabinet body, wherein a plurality of rows of electrical components are arranged in an upper and lower interval manner, characterized in that: The cabinet is provided with an air intake chamber and an electrical chamber distributed in the front-to-back direction, the top of the air intake chamber is connected with the top of the electrical chamber through a gas channel, and the electrical components are located in the electrical chamber; An air inlet connected to the air inlet chamber is provided on the side wall of the cabinet, and an air suction fan for sucking external air into the air inlet chamber from the air inlet is provided in the air inlet chamber. A plurality of horizontal partitions arranged at intervals from top to bottom are also provided in the air inlet chamber, and the horizontal partition is located above the air suction fan. The horizontal partition includes a dust removal layer and a water removal layer arranged in sequence from top to bottom, and a vent hole penetrating from top to bottom is also provided on the horizontal partition for air flow to pass through. The plurality of horizontal partitions divide the air inlet chamber into a plurality of filter chambers arranged in sequence from top to bottom, and the vent holes in any two adjacent horizontal partitions are respectively distributed at the left and right ends of the filter chamber between the two horizontal partitions; A fire extinguishing mechanism is also provided in the cabinet, which includes a fire extinguishing agent chamber for storing fire extinguishing agent and a plurality of fire extinguishing pipelines connected to the fire extinguishing agent chamber. The fire extinguishing pipeline has a fire extinguishing agent outlet, and each fire extinguishing agent outlet is arranged toward each row of electrical components. A valve for controlling the on and off of the fire extinguishing pipeline is installed in the fire extinguishing pipeline. A temperature sensor is provided on the side of each row of electrical components, and each temperature sensor is respectively connected to the valve control in the corresponding fire extinguishing pipeline. When the temperature sensor detects that the temperature reaches the set value, the valve opens so that the fire extinguishing agent outlet sprays the fire extinguishing agent toward the corresponding electrical component.

2. A ring network switch cabinet according to claim 1, characterized in that: The cabinet is provided with vertical baffles and vertical partitions which are parallel to each other and spaced apart in the front-to-back direction. The air intake chamber is enclosed between the vertical baffles and the side walls of the cabinet, and the electrical chamber is enclosed between the vertical baffles and the vertical partitions. The vertical baffles have an inner cavity, and the inner cavity of the vertical baffles forms the fire extinguishing agent chamber. Liquid carbon dioxide is stored in the fire extinguishing agent chamber as a fire extinguishing agent.

3. A ring network switch cabinet according to claim 2, characterized in that: A through hole is provided on the top of the vertical baffle plate, which passes through the top and the bottom of the vertical baffle plate, and the through hole forms the gas channel.

4. A ring network switch cabinet according to claim 2 or 3, characterized in that: A cooling mechanism is installed on the cabinet, and the cooling mechanism includes a circulation pipeline, a pump body and a refrigeration unit. The inlet end and the outlet end of the circulation pipeline are both connected to the vertical baffle and communicated with the fire extinguishing agent chamber. The pump body and the refrigeration unit are both arranged in the flow path of the circulation pipeline. The pump body is used to pump the liquid carbon dioxide in the fire extinguishing agent chamber to the refrigeration unit for cooling, and then pump the cooled liquid carbon dioxide back to the fire extinguishing agent chamber.

5. A ring network switch cabinet according to claim 2 or 3, characterized in that: The multiple fire extinguishing pipelines in the fire extinguishing mechanism are all located in the electrical chamber and respectively located above each row of electrical components. The fire extinguishing pipeline includes two end pipe sections that are arranged at intervals on the left and right and extend in the front-to-back direction, and a connecting pipe section connected between one ends of the two end pipe sections that are away from the vertical baffle. The two end pipe sections are connected to the vertical baffle and are connected to the fire extinguishing agent chamber. The connecting pipe section is connected to the two end pipe sections. A discharge channel connected to the connecting pipe section is provided at the bottom of the connecting pipe section. The discharge channel is inclined from top to bottom toward the corresponding electrical component, and the discharge channel forms the fire extinguishing agent outlet.

6. The ring network switch cabinet according to claim 5, characterized in that: The top and bottom of the vertical baffle are provided with sealing plates that can move forward and backward. Both sealing plates are located below the gas channel. The two sealing plates can move toward the vertical partition to enclose a closed space in the electrical chamber that covers each electrical component and each fire extinguishing agent outlet.

7. The ring network switch cabinet according to claim 6, characterized in that: Each row of electrical components is installed on the vertical baffle, and the cabinet body has a detachable left cabinet wall or right cabinet wall. The vertical baffle is installed in the cabinet body with left and right guiding slides so that the vertical baffle can move to the outside of the cabinet body in the direction toward the left cabinet wall or the right cabinet wall.

8. The ring network switch cabinet according to claim 7, characterized in that: A support is provided in the cabinet, the vertical baffle is located above the support, and a plurality of rollers are provided on the top of the support, which are arranged at intervals on the left and right and whose axes extend in the front-to-back direction, and the rollers are used to support the vertical baffle.

9. A ring network switch cabinet according to any one of claims 1 to 3, characterized in that: The water removal layer adopts a water-absorbing sponge, and the dust removal layer adopts an activated carbon plate.

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