A pressure relief explosion-proof ring network cabinet

Abstract

The present invention discloses a pressure relief explosion-proof ring network cabinet, including a wiring base component and a pressure relief explosion-proof component. The device of the invention mainly uses an isolation plate to be set at the isolation position of the ring network component, so that after the equipment explodes, the isolation plate can play a certain degree of blocking role and achieve a buffering effect. In addition, since the inner side of the clamping cabin is provided with multiple groups of staggered and parallel hinge strips and hinge steel sheets, after high temperature and high pressure are formed in the shell plate structure, the hinge steel sheet is pushed open by the effect of high pressure, so that the high temperature and high pressure airflow is guided to the nozzle through the clamping cabin and ejected out, so as to continuously remove the pressure of the shell plate structure. In addition, since the connecting rod uses the connecting base to set the arc cover outside one end of the nozzle, the nozzle can effectively block when ejecting the flame and high temperature airflow, so as to avoid damage to the surrounding staff, and achieve the effect of improving equipment safety and reducing property losses.

Description

Technical Field

[0001] The invention relates to the technical field of ring network cabinets, in particular to a pressure relief explosion-proof ring network cabinet. Background Art

[0002] A ring main unit is a group of electrical equipment installed in a metal or non-metallic insulating cabinet or made into an assembled interval ring main unit. Its core part uses load switches and fuses. It has the advantages of simple structure, small size, low price, improved power supply parameters and performance, and power supply safety. It is widely used in distribution stations and box-type substations in load centers such as urban residential areas, high-rise buildings, large public buildings, factories and enterprises.

[0003] When the existing ring main unit is in use, in addition to power supply, it generally utilizes the through current of the high-voltage busbar through the ring power supply network to ensure that the high-voltage busbar is not overloaded during operation, so as to connect the ring network lines and improve the power supply reliability of the lines. For example, application No. CN201910291977.6 discloses a box-type fixed ring main unit with high safety performance, including a ring main unit body, the ring main unit body includes a box-type cabinet and an electrical circuit located inside the box-type cabinet, and a top cover is installed on the top of the box-type cabinet; however, in the above technology, although the shell is thick and large in size, the strength of the box-type cabinet is weak, and the box-type cabinet can be easily burned quickly in the event of a fire, which can easily increase the property loss of users. For this reason, we propose a pressure relief explosion-proof ring main unit to solve the above problems. Summary of the invention

[0004] In view of the above problems, the present invention proposes a pressure relief explosion-proof ring network cabinet, which mainly utilizes an isolation plate to be arranged at the isolation position of the ring network component, so that after the equipment explodes, the isolation plate can play a certain degree of barrier role and achieve a buffering effect, and because the inner side of the clamping cabin is provided with a plurality of groups of staggered and parallel hinge strips and hinge steel sheets, after high temperature and high pressure are formed in the shell plate structure, the hinge steel sheets are pushed open by the effect of the high pressure, so that the high temperature and high pressure airflow is guided through the clamping cabin to the nozzle and ejected, so as to continuously remove the pressure of the shell plate structure, and because the connecting rod utilizes the connecting base to set the arc cover outside one end of the nozzle, the nozzle can effectively block the flame and high temperature airflow when ejecting, thereby avoiding damage to surrounding personnel, thereby achieving the effect of improving equipment safety and reducing property losses.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A pressure relief explosion-proof ring network cabinet comprises a wiring base component and a pressure relief explosion-proof component. A shell plate structure assembled with bolts is arranged on the top side of the wiring base component. A ring network component is arranged inside the shell plate structure. A pressure relief explosion-proof component is arranged on the ring network component and is sleeved with the shell plate structure bolts.

[0007] As a further technical solution, the wiring base component includes a steel-concrete base, a steel-concrete column, an upper base, an edging shell, a wind ring, a cooling fan, a vertical insulating pipe and an underground cable pipe. The top side of the steel-concrete base is connected to the upper base through the steel-concrete column. The steel-concrete base, the steel-concrete column and the upper base are all steel-concrete structures. An edging shell is provided on the side of the steel-concrete column, and an wind ring for installing a cooling fan is provided on the inner side of the end of the edging shell.

[0008] As a further technical solution, a sleeved vertical insulating tube is provided on the inner side of the steel-concrete seat and the upper base, and an underground cable pipe is provided below the vertical insulating tube.

[0009] As a further technical solution, the shell plate structure includes a bolt base plate, a bolt strip plate, a shell, an end side guard plate, a rear side guard plate, a top socket, a top plate, a lifting ring, a hinge strip, a narrow side door, a handle, a lock, a latch strip, a wide side door and a label box. The bolt strip plate is bolted to the top of the side of the upper base through the bolt base plate, the top side of the bolt strip plate is provided with a shell, and the side of the shell is provided with an end side guard plate, the rear side of the shell is provided with a bolt-assembled rear side guard plate, the top side of the shell is plug-connected to the top plate through the top socket, and a lifting ring is provided above the side of the top plate.

[0010] As a further technical solution, a hinge strip is provided on the inner side of the front of the shell, and a narrow side door for installing a handle is provided on one side of the hinge strip, a lock for installing a latch strip is provided on the narrow side door, and the latch strip is plug-connected to the wide side door, and a label box is provided on one side of the wide side door.

[0011] As a further technical solution, the ring network assembly includes a pneumatic telescopic rod, a top frame bar, an insulating base, a transformer cabinet, a bolt plate shell, a control room, a control panel, a socket, a junction box, a top bin, a vertical bin and a bottom bin shell. The pneumatic telescopic rod is arranged on the inner top side of the bolt base plate, the top side of the pneumatic telescopic rod is provided with a top frame bar, and the top side of the top frame bar is provided with an insulating base assembled with bolts, the top side of the insulating base is provided with a transformer cabinet, and one side of the transformer cabinet is provided with a bolt plate shell, and the top side of the transformer cabinet is provided with a control room for installing a control panel.

[0012] As a further technical solution, a socket for plugging in is provided on the top side of the control room, and a junction box is provided on the top side of the socket, a top bin is provided on the top side of the junction box, and a vertical bin is provided on one side of the top bin, and a bottom bin shell assembled with bolts of a bolt base plate is provided on the lower end side of the vertical bin.

[0013] As a further technical solution, the pressure relief and explosion-proof component includes an isolation plate, a clamping cabin, a bolt base, a nozzle, a connecting rod, a connecting base, an arc cover, a hinge bar and a hinge steel sheet. The isolation plate is arranged on the bottom side of one end of the top bin, a clamping cabin is arranged on the inner side of the isolation plate, and a bolt base is arranged on the outer side of the clamping cabin, and a nozzle is arranged at one end of the clamping cabin.

[0014] As a further technical solution, a connecting rod is provided on one side of the bolt base, and a connecting base is provided at one end of the connecting rod, an arc cover is provided on the side of the connecting base, a plurality of groups of parallel hinge strips are provided on the inner side of the clamping cabin, and hinge steel sheets distributed in an alternating manner are provided on one side of the hinge strips.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The device of the invention mainly utilizes an isolation plate to be set at the isolation position of the ring network component, so that after the equipment explodes, the isolation plate can play a certain degree of blocking role and achieve a buffering effect, and because the inner side of the clamping cabin is provided with multiple sets of staggered and parallel hinge strips and hinge steel sheets, after high temperature and high pressure are formed in the shell plate structure, the hinge steel sheets are pushed open by the effect of high pressure, so that the high temperature and high pressure airflow is guided through the clamping cabin to the nozzle and ejected, so as to continuously remove the pressure of the shell plate structure, and because the connecting rod utilizes the connecting base to set the arc cover outside one end of the nozzle, the nozzle can effectively block the high temperature airflow when ejecting the flame, so as to avoid damage to the surrounding personnel, thereby achieving the effect of improving equipment safety and reducing property losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a pressure relief explosion-proof ring network cabinet;

[0018] Figure 2 It is a schematic diagram of the structure of the present invention from a side view;

[0019] Figure 3 It is a structural schematic diagram of the wiring base component in the present invention;

[0020] Figure 4 It is a structural schematic diagram of the shell plate structure in the present invention;

[0021] Figure 5It is a structural schematic diagram of the ring network component in the present invention;

[0022] Figure 6 It is a schematic diagram of the structure of the vertical bin and the bottom bin shell in the present invention;

[0023] Figure 7 It is a structural schematic diagram of the pressure relief and explosion-proof component in the present invention;

[0024] Figure 8 It is a schematic diagram of the structure of the hinge strip and hinge steel sheet in the present invention.

[0025] In the figure: 1. cable laying base component; 101. steel-concrete base; 102. steel-concrete column; 103. upper base; 104. edging shell; 105. wind circle; 106. cooling fan; 107. vertical insulating tube; 108. underground cable tube; 2. shell plate structure; 201. bolt base plate; 202. bolt strip plate; 203. shell; 204. end side guard plate; 205. rear side guard plate; 206. top socket; 207. top plate; 208. lifting ring; 209. hinge strip; 2010. narrow side door; 2011. handle; 2012. lock; 2013. latch strip; 2014. wide side door ; 2015, label box; 3, ring network assembly; 301, pneumatic telescopic rod; 302, top frame strip; 303, insulating base; 304, transformer cabinet; 305, bolt plate shell; 306, control room; 307, control panel; 308, socket; 309, junction box; 3010, top bin; 3011, vertical bin; 3012, bottom bin shell; 4, pressure relief and explosion-proof components; 401, isolation plate; 402, clamping cabin; 403, bolt base; 404, nozzle; 405, connecting rod; 406, connecting base; 407, arc cover; 408, hinge strip; 409, hinge steel sheet. DETAILED DESCRIPTION

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0028] 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. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-8 In an embodiment of the present invention, a pressure relief and explosion-proof ring network cabinet includes a wiring base component 1 and a pressure relief and explosion-proof component 4. A shell plate structure 2 assembled with bolts is arranged on the top side of the wiring base component 1. A ring network component 3 is arranged inside the shell plate structure 2, and a pressure relief and explosion-proof component 4 is arranged on the ring network component 3 and is bolted to the shell plate structure 2.

[0030] The cable laying base component 1 includes a steel-concrete base 101, a steel-concrete column 102, an upper base 103, an edge shell 104, a wind ring 105, a cooling fan 106, a vertical insulating tube 107 and an underground cable pipe 108. The top side of the steel-concrete base 101 is connected to the upper base 103 through the steel-concrete column 102. The steel-concrete base 101, the steel-concrete column 102 and the upper base 103 are all steel-concrete structures. The side of the steel-concrete column 102 is provided with an edge shell 104, and the inner side of the end of the edge shell 104 is provided with a wind ring 105 for installing a cooling fan 106.

[0031] In an embodiment of the present invention, after the reinforced concrete is poured using the steel-concrete seat 101 at the workplace, the steel-concrete seat 101, the steel-concrete column 102 and the upper base 103 are formed to form a supporting function, so that the vertical insulating tube 107 is connected through the inner side of the steel-concrete seat 101 and the upper base 103, so that the underground cable pipe 108 under the vertical insulating tube 107 is laid underground, and the upper cable is connected using the underground cable pipe 108, so that the cable is laid through the underground cable pipe 108 and the vertical insulating tube 107.

[0032] A sleeved vertical insulating tube 107 is provided on the inner side of the steel-concrete seat 101 and the upper base 103 , and an underground cable tube 108 is provided below the vertical insulating tube 107 .

[0033] In an embodiment of the present invention, after the cable is laid, the outer side of the steel-concrete column 102 is covered and connected with an edge shell 104. When the equipment is moved left and right, an upper wind circle 105 is set on the inner side of the end of the edge shell 104, and the cooling fan 106 is operated to achieve real-time air circulation and achieve the effect of heat dissipation.

[0034] The shell plate structure 2 includes a bolt base plate 201, a bolt strip plate 202, a shell 203, an end side guard plate 204, a rear side guard plate 205, a top socket 206, a top plate 207, a lifting ring 208, a hinge strip 209, a narrow side door 2010, a handle 2011, a lock 2012, a latch strip 2013, a wide side door 2014 and a label box 2015. The bolt strip plate 202 is bolted to the upper side of the upper base 103 through the bolt base plate 201, the shell 203 is arranged on the top side of the bolt strip plate 202, and the end side guard plate 204 is arranged on the side of the shell 203, the rear side of the shell 203 is provided with a bolt-assembled rear side guard plate 205, the top side of the shell 203 is plug-connected with the top plate 207 through the top socket 206, and the lifting ring 208 is arranged on the upper side of the top plate 207.

[0035] In an embodiment of the present invention, the bolt base plate 201 is matched with the bolt strip 202 to bolt the bolt base plate 201 above the side of the upper base 103, and the top side of the bolt strip 202 supports the shell 203, and the top plate 207 is matched with the top socket 206 to be set on the top side of the shell 203 by a crane using the lifting ring 208 on the top plate 207, and the end side guard plate 204 and the rear side guard plate 205 connected by bolts are set on the side of the shell 203 to improve the strength of the equipment.

[0036] A hinge strip 209 is provided on the inner side of the front portion of the shell 203, and a narrow side door 2010 for installing a handle 2011 is provided on one side of the hinge strip 209, a lock 2012 for installing a latch strip 2013 is provided on the narrow side door 2010, and the latch strip 2013 is plug-connected to the wide side door 2014, and a label box 2015 is provided on one side of the wide side door 2014.

[0037] In an embodiment of the present invention, after the ring network assembly 3 is connected to the power grid, the narrow side door 2010 and the wide side door 2014 are closed by using the hinge strip 209 in cooperation with the handle 2011, so that the lock 2012 uses the latch strip 2013 to close the narrow side door 2010 and the wide side door 2014 to achieve a protective effect, and fill in relevant information in the label box 2015 on one side of the wide side door 2014.

[0038] The ring network component 3 includes a pneumatic telescopic rod 301, a top frame bar 302, an insulating base 303, a transformer cabinet 304, a bolt plate shell 305, a control room 306, a control panel 307, a socket 308, a junction box 309, a top bin 3010, a vertical bin 3011 and a bottom bin shell 3012. The pneumatic telescopic rod 301 is arranged on the inner top side of the bolt base plate 201, and the top side of the pneumatic telescopic rod 301 is provided with a top frame bar 302, and the top side of the top frame bar 302 is provided with an insulating base 303 assembled with bolts, the top side of the insulating base 303 is provided with a transformer cabinet 304, and one side of the transformer cabinet 304 is provided with a bolt plate shell 305, and the top side of the transformer cabinet 304 is provided with a control room 306 for installing a control panel 307.

[0039] In an embodiment of the present invention, a pneumatic telescopic rod 301 is used to connect the top frame bar 302 above the side of the bolt base plate 201, so that the insulating base 303 is connected to the top side of the top frame bar 302, and is placed on the top side of the insulating base 303 through the transformer cabinet 304 and the control room 306. In this way, the output power of the pneumatic telescopic rod 301 is started to drive the output end of the pneumatic telescopic rod 301 to lift, so that the top side of the control room 306 is plugged into the socket 308 to achieve the effect of line connection, and the equipment is observed through the control panel 307 on one side of the control room 306.

[0040] A plug-in socket 308 is provided on the top side of the control room 306, and a junction box 309 is provided on the top side of the socket 308, a top bin 3010 is provided on the top side of the junction box 309, and a vertical bin 3011 is provided on one side of the top bin 3010, and a bottom bin shell 3012 assembled with bolts to the bolt base plate 201 is provided on the lower end side of the vertical bin 3011.

[0041] In an embodiment of the present invention, when the cable is laid at the top of the vertical insulating tube 107, the bottom bin shell 3012 is set on the top side of the bolt base plate 201 to connect the cable, and one end of the bottom bin shell 3012 is set in the vertical bin 3011 to lay the internal line, and the line is laid through the top bin 3010 on the top of the vertical bin 3011, and the line is distributed in the junction box 309 below the top bin 3010, so that the junction box 309 completes the connection of the line using the socket 308 to wait for connection.

[0042] The pressure relief and explosion-proof component 4 includes an isolation plate 401, a clamping cabin 402, a bolt base 403, a nozzle 404, a connecting rod 405, a connecting base 406, an arc cover 407, a hinge strip 408 and a hinge steel sheet 409. The isolation plate 401 is arranged on the bottom side of one end of the top bin 3010, the clamping cabin 402 is arranged on the inner side of the isolation plate 401, and the bolt base 403 is arranged on the outer side of the clamping cabin 402, and a nozzle 404 is arranged at one end of the clamping cabin 402.

[0043] In an embodiment of the present invention, when the equipment is working, the isolation plate 401 below the top bin 3010 is used to achieve a real-time protection effect. When a danger occurs, the equipment may explode. The emergency control room 306 outputs a command to cause the pneumatic telescopic rod 301 to output power to drive the output end of the pneumatic telescopic rod 301 to lower, so that the control room 306 is disconnected from the socket 308 to disconnect the power supply.

[0044] A connecting rod 405 is provided on one side of the bolt base 403, and a connecting base 406 is provided at one end of the connecting rod 405, an arc cover 407 is provided on the side of the connecting base 406, a plurality of sets of parallel hinge strips 408 are provided on the inner side of the clamping cabin 402, and hinge steel sheets 409 distributed in an alternating manner are provided on one side of the hinge strips 408.

[0045] In the embodiment of the present invention, after the flame explodes, a strong high temperature and high pressure will be generated inside the shell plate structure 2. Since a plurality of sets of staggered and parallel hinge strips 408 and hinge steel sheets 409 are arranged on the inner side of the clamping cabin 402, the high temperature and high pressure gas is sprayed into the clamping cabin 402 through the inside of the shell plate structure 2 by means of the hinge strips 408 and hinge steel sheets 409, and is sprayed out through the nozzle 404 at one end of the clamping cabin 402. Since an arc cover 407 and a connecting base 406 are arranged on the outer side of one end of the nozzle 404, the arc cover 407 can be used to protect the flame sprayed out of the nozzle 404, thereby achieving the effect of effectively protecting the staff and realizing the effect of pressure relief and explosion prevention.

[0046] The working principle of the present invention is: first, after the reinforced concrete is poured at the workplace, the steel-concrete seat 101 is used to form the steel-concrete seat 101, the steel-concrete column 102 and the upper base 103 to form a supporting function, so that the vertical insulating tube 107 is connected through the inner side of the steel-concrete seat 101 and the upper base 103, so that the underground cable pipe 108 below the vertical insulating tube 107 is laid underground, and the upper cable is connected by the underground cable pipe 108, so that the cable is laid through the underground cable pipe 108 and the vertical insulating tube 107. When the cable is laid, the outer side of the steel-concrete column 102 is covered with an edge shell 104. When the equipment is moved left and right, an upper wind circle 105 is set on the inner side of the end of the edge shell 104, and the The cooling fan 106 is operated to achieve real-time air circulation and heat dissipation, and the bolt base plate 201 is matched with the bolt strip 202 to bolt the bolt base plate 201 above the side of the upper base 103, and the top side of the bolt strip 202 supports the shell 203, and the top plate 207 is matched with the top socket 206 by a crane to set it on the top side of the shell 203, and the end side guard plate 204 and the rear side guard plate 205 connected by bolts are set on the side of the shell 203 to improve the strength of the equipment. When the cable is laid on the top of the vertical insulating tube 107, the bottom bin shell 3012 is set on the top side of the bolt base plate 201 to connect the cable, and One end of the shell 3012 is set in the vertical warehouse 3011 to lay the internal line, and the line is laid through the top warehouse 3010 on the top of the vertical warehouse 3011, and the line is distributed in the junction box 309 below the top warehouse 3010, so that the junction box 309 uses the socket 308 to connect the line to wait for connection. On the side of the bolt base plate 201, the pneumatic telescopic rod 301 is used to connect the top frame bar 302, so that the insulating base 303 is connected to the top side of the top frame bar 302, and is placed on the top side of the insulating base 303 through the transformer cabinet 304 and the control room 306, so that the output power of the pneumatic telescopic rod 301 is started to drive the output end of the pneumatic telescopic rod 301 to be lifted, so that the top side of the control room 306 is plugged in The socket 308 is connected to the circuit, and the control panel 307 on the side of the control room 306 is used to observe the equipment. After the ring network component 3 is connected to the power grid, the hinge strip 209 is used to cooperate with the narrow side door 2010 and the wide side door 2014 on the handle 2011 to close the narrow side door 2010 and the wide side door 2014, so that the lock 2012 uses the latch strip 2013 to close the narrow side door 2010 and the wide side door 2014 to achieve the protection effect, and fill in the relevant information in the label box 2015 on the side of the wide side door 2014. When the equipment is working, the isolation plate 401 under the top bin 3010 is used to achieve the effect of real-time protection. When danger occurs, the equipment may explode.The emergency control room 306 outputs a command to make the pneumatic telescopic rod 301 output power to drive the output end of the pneumatic telescopic rod 301 to lower, so that the control room 306 is disconnected from the socket 308 to disconnect the power supply. When the flame explodes, the interior of the shell plate structure 2 will produce strong high temperature and high pressure. Since the inner side of the clamping cabin 402 is provided with multiple sets of staggered and parallel hinge strips 408 and hinge steel sheets 409, the high-temperature and high-pressure gas is sprayed into the clamping cabin 402 through the interior of the shell plate structure 2 using the hinge strips 408 and hinge steel sheets 409, and is sprayed out through the nozzle 404 at one end of the clamping cabin 402. Since the outer side of one end of the nozzle 404 is provided with an arc cover 407 and a connecting base 406, the arc cover 407 can be used to protect the flame sprayed from the nozzle 404, thereby achieving an effective protection effect for the staff, so as to achieve the effect of pressure relief and explosion prevention.

[0047] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A pressure relief explosion-proof ring main unit, comprising a cable laying base component (1) and a pressure relief explosion-proof component (4), characterized in that: A shell plate structure (2) assembled with bolts is arranged on the top side of the cable laying base component (1), a ring net assembly (3) is arranged inside the shell plate structure (2), and a pressure relief and explosion-proof component (4) is arranged on the ring net assembly (3) and is sleeved with bolts on the shell plate structure (2); The cable laying base component (1) comprises a steel-concrete base (101), a steel-concrete column (102), an upper base (103), an edge shell (104), a wind ring (105), a cooling fan (106), a vertical insulating tube (107) and an underground cable tube (108); the top side of the steel-concrete base (101) is connected to the upper base (103) via the steel-concrete column (102); the steel-concrete base (101), the steel-concrete column (102) and the upper base (103) are all steel-concrete structures; the side of the steel-concrete column (102) is provided with an edge shell (104), and the inner side of the end of the edge shell (104) is provided with a wind ring (105) for installing a cooling fan (106); The shell plate structure (2) comprises a bolt base plate (201), a bolt strip plate (202), a shell (203), an end side guard plate (204), a rear side guard plate (205), a top socket (206), a top plate (207), a lifting ring (208), a hinge strip (209), a narrow side door (2010), a handle (2011), a lock (2012), a latch strip (2013), a wide side door (2014) and a label box (2015). The bolt strip plate (202) is connected to the bolt base plate by a bolt The plate (201) is bolted to the upper side of the upper base (103); a shell (203) is arranged on the top side of the bolt strip plate (202); an end side guard plate (204) is arranged on the side of the shell (203); a rear side guard plate (205) assembled with bolts is arranged on the rear side of the shell (203); the top side of the shell (203) is plug-connected to the top plate (207) via a top socket (206); and a lifting ring (208) is arranged on the upper side of the top plate (207); The ring network assembly (3) comprises a pneumatic telescopic rod (301), a top frame bar (302), an insulating base (303), a transformer cabinet (304), a bolt plate shell (305), a control room (306), a control panel (307), a socket (308), a junction box (309), a top bin (3010), a vertical bin (3011) and a bottom bin shell (3012). The pneumatic telescopic rod (301) is arranged inside the bolt base plate (201). On the top side, a top frame bar (302) is provided on the top side of the pneumatic telescopic rod (301), and an insulating base (303) assembled with bolts is provided on the top side of the top frame bar (302), a transformer cabinet (304) is provided on the top side of the insulating base (303), and a bolt plate shell (305) is provided on one side of the transformer cabinet (304), and a control room (306) for installing a control panel (307) is provided on the top side of the transformer cabinet (304).

2. The pressure relief explosion-proof ring main unit according to claim 1, characterized in that: A sleeved vertical insulating tube (107) is provided on the inner side of the steel-concrete seat (101) and the upper base (103), and an underground cable tube (108) is provided below the vertical insulating tube (107).

3. The pressure relief explosion-proof ring main unit according to claim 1, characterized in that: A hinge strip (209) is arranged on the inner side of the front part of the housing (203), and a narrow side door (2010) for installing a handle (2011) is arranged on one side of the hinge strip (209), a lock (2012) for installing a latch strip (2013) is arranged on the narrow side door (2010), and the latch strip (2013) is plug-connected to the wide side door (2014), and a label box (2015) is arranged on one side of the wide side door (2014).

4. The pressure relief explosion-proof ring main unit according to claim 1, characterized in that: A plug socket (308) is arranged on the top side of the control room (306), and a junction box (309) is arranged on the top side of the plug socket (308), a top bin (3010) is arranged on the top side of the junction box (309), and a vertical bin (3011) is arranged on one side of the top bin (3010), and a bottom bin shell (3012) assembled with bolts to a bolt base plate (201) is arranged on one side of the lower end of the vertical bin (3011).

5. The pressure relief explosion-proof ring main unit according to claim 1, characterized in that: The pressure relief explosion-proof component (4) comprises an isolation plate (401), a clamping cabin (402), a bolt base (403), a nozzle (404), a connecting rod (405), a connecting base (406), an arc cover (407), a hinge bar (408) and a hinge steel sheet (409); the isolation plate (401) is arranged at the bottom side of one end of the top bin (3010); the clamping cabin (402) is arranged on the inner side of the isolation plate (401), and the bolt base (403) is arranged on the outer side of the clamping cabin (402); and the nozzle (404) is arranged at one end of the clamping cabin (402).

6. The pressure relief explosion-proof ring main unit according to claim 5, characterized in that: A connecting rod (405) is provided on one side of the bolt base (403), and a connecting base (406) is provided on one end of the connecting rod (405), and an arc-shaped cover (407) is provided on the side of the connecting base (406). A plurality of sets of hinge bars (408) distributed in parallel are provided on the inner side of the clamping chamber (402), and hinge steel sheets (409) distributed in a staggered manner are provided on one side of the hinge bars (408).

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