CN112260122A - 10kV insulation ring main unit - Google Patents
10kV insulation ring main unit Download PDFInfo
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- CN112260122A CN112260122A CN202011160041.9A CN202011160041A CN112260122A CN 112260122 A CN112260122 A CN 112260122A CN 202011160041 A CN202011160041 A CN 202011160041A CN 112260122 A CN112260122 A CN 112260122A
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- wire passing
- bin body
- main
- main unit
- window
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Securing Of Glass Panes Or The Like (AREA)
- Window Of Vehicle (AREA)
Abstract
The invention provides a 10kV insulating ring main unit. This technical scheme improves the pressure release structure of looped netowrk cabinet to set up the guide structure who plays the effect of preventing buckling in the position that the cable runs through the wallboard. Specifically, the top surface of the main bin body is completely used as a pressure relief surface, so that the pressure relief area is ensured, surrounding personnel are not easily injured, and on the basis, in order to overcome the problem of overlarge span of the pressure relief window, the middle mounting plate which plays a supporting role for the pressure relief window is arranged in the middle of the top surface of the main bin body and is fixed in a hanging and spot welding combined mode. In addition, the guide rod is additionally arranged on the periphery of the wire passing hole, so that the cable is prevented from being scratched due to an overlarge bending angle at the penetrating position, and a protection effect is achieved.
Description
Technical Field
The invention relates to the technical field of ring main units, in particular to a 10kV insulating ring main unit.
Background
In order to increase the reliability of the power supply, the user is provided with power from two directions, usually by connecting the power supply networks in a ring. This power supply mode is referred to as ring network power supply for short. In an alternating current 10KV power distribution system of industrial and mining enterprises, residential districts, ports, high-rise buildings and the like, a high-voltage loop is usually controlled by a load switch or a vacuum contactor and is provided with a high-voltage fuse protector for protection because of small load capacity. The system usually adopts the ring network to supply power, and the high tension switchgear that uses is generally habitually called looped netowrk cabinet.
The ring main unit is a group of electric equipment (high-voltage switch equipment) which is arranged in a metal or nonmetal insulating cabinet body or is made into an assembled interval ring main power supply unit, and the core part of the ring main unit adopts a load switch and a fuse. The transformer substation is widely applied to distribution stations and box-type substations of load centers of urban residential districts, high-rise buildings, large public buildings, factory enterprises and the like.
The pressure release channel is the important component of looped netowrk cabinet, and conventional pressure release channel is pipeline or pore structure, can reach the pressure release effect, can control the pressure release direction again, however, its pressure release area is less relatively, when the accident explodes, still can cause the destruction to inner structure because of the pressure release area undersize. Although this problem just can be alleviated to increase pressure release area, along with pressure release area's increase, the corresponding increase of span of pressure release window (the terminal shrouding of pressure release channel, nonmetal material such as plastics generally) between looped netowrk cabinet surface connection point, the material of pressure release window itself is insecure again, generally still has certain elasticity, consequently, pressure release window position can become looped netowrk cabinet surface strength's weak point, influences its closure even. In addition, conventional looped netowrk cabinet lacks the protection architecture to the cable, and the cable runs through the position of looped netowrk cabinet wallboard, receives the wallboard fish tail because of the cable angle of buckling is too big easily.
Disclosure of Invention
The invention aims to provide a 10kV insulating ring main unit aiming at the technical defects of the prior art, and aims to solve the technical problem that the conventional ring main unit is difficult to consider both the pressure relief area and the connection stability at the same time due to a pressure relief window.
Another technical problem to be solved by the invention is that the wall plate of the conventional ring main unit is easy to scratch the penetrating position of the cable.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a10 kV insulating ring main unit comprises a main chamber body, a front chamber body, an observation window, explosion-proof glass, a convex edge, an inner chamber body, a cable support, an additional chamber body, a wire passing hole, a guide rod, a heat dissipation window, an edge mounting plate, a connecting rod, a middle mounting plate and a hook body, wherein the front end of the main chamber body is connected with a front door body, the front door body is respectively provided with the observation window and the explosion-proof glass, an instrument is arranged on the front door body and is positioned at the rear side of the explosion-proof glass, the convex edge is fixedly connected on the front door body and positioned above the explosion-proof glass; an inner bin body is arranged in the main bin body, a cable bracket is fixedly connected in the inner bin body, an additional bin body is connected outside the main bin body, wire passing holes are respectively arranged between the additional bin body and the main bin body and between the main bin body and the inner bin body, a guide rod is fixedly connected to the periphery of each wire passing hole, the axis of each guide rod is parallel to the axis of each wire passing hole, and a heat dissipation window is arranged on the side wall of the additional bin body; fixedly connected with edge mounting panel in the top edge of the main storehouse body, fixedly connected with connecting rod between two inner walls of the main storehouse body, the lower extreme at middle mounting panel has the coupler body, and the coupler body transversely articulates on the connecting rod, and the coupler body is fixed with the contact position spot welding of connecting rod, and middle mounting panel is located the top of the main storehouse body, and the pressure release window respectively with middle mounting panel and edge mounting panel fixed connection, the clearance between mounting panel and the edge mounting panel in the middle of the pressure release window seals.
Preferably, the observation window is made of explosion-proof glass; the instrument has a plurality of, and every instrument is sealed in an independent explosion-proof glass rear side.
Preferably, four guide rods are uniformly distributed on the periphery of the wire passing hole; the end of the guide rod is in a hemispherical shape.
Preferably, the protruding edge is inclined downwards, and the protruding edge is made of stainless steel.
Preferably, the device also comprises a base platform, wherein the main bin body and the additional bin body are fixedly connected onto the base platform, and the height from the top surface of the base platform to the ground is not less than 20 cm.
Preferably, the number of the wire passing holes between the additional bin body and the main bin body and between the main bin body and the inner bin body is three, and the three wire passing holes are communicated through the wire passing grooves.
Preferably, the hole wall of the wire passing hole and the groove wall of the wire passing groove are both provided with rubber sheaths.
Preferably, the heat dissipation window is a hollow rectangular hole, and the heat dissipation window is covered with an aluminum alloy heat dissipation plate with uniformly distributed rectangular through holes.
Preferably, the aluminum alloy heat dissipation plate is connected to the heat dissipation window through a stud bolt; and the stud bolt is also provided with a cooling fan.
Preferably, the outer wall of the guide rod is sleeved with a silica gel protective sleeve.
In the technical scheme, the main cabin body is a main body shell of the ring main unit and is used for accommodating and protecting internal electrical elements; the front door body is used for opening or closing the main bin body; the observation window is used for peeping the inner condition from the outside; the explosion-proof glass is used for protecting the instrument and avoiding bursting out during pressure relief; the convex edge can be used as an acting point for manually opening the front door body and can also play a certain shielding role on the explosion-proof glass from the upper part; the inner cabin body can be called as a cable chamber and is used for connecting cables, and electrical elements such as fuses, current transformers and the like can also be loaded in the space; the cable bracket is used for guiding and fixing the cable; the additional bin body is a transition space before the cable enters the main bin body; the wire passing hole is used for penetrating through the cable; the guide rod positioned on the periphery of the wire passing hole is attached to the cable and used for guiding the cable and avoiding overlarge bending angle of the cable at the penetrating position; the heat dissipation window can play a role in natural heat dissipation; the top surface of the main bin body is a pressure relief surface, so that the large pressure relief area can ensure sufficient pressure relief, and the pressure relief area is positioned at the top end of the main bin body, so that surrounding personnel are not easily injured during pressure relief; in order to avoid the problem of overlarge span of the pressure relief window, the top surface of the main bin body is additionally provided with the middle mounting plate, the middle mounting plate is transversely hung on the connecting rod by utilizing a hook body at the lower end of the middle mounting plate and is fixed by spot welding, when pressure relief occurs, one side of the middle mounting plate is upturned due to impact, and the hook body is separated from the connecting rod immediately, so that the middle mounting plate is burst open, and the whole pressure relief surface is completely released; under the normal use state, the fixing strength of spot welding is enough to support the middle mounting plate and the pressure relief window on the middle mounting plate, so that the stability of the structure can be ensured; each pressure relief window is connected with one end on the edge mounting plate and the other end on the middle mounting plate.
The invention provides a 10kV insulating ring main unit. This technical scheme improves the pressure release structure of looped netowrk cabinet to set up the guide structure who plays the effect of preventing buckling in the position that the cable runs through the wallboard. Specifically, the top surface of the main bin body is completely used as a pressure relief surface, so that the pressure relief area is ensured, surrounding personnel are not easily injured, and on the basis, in order to overcome the problem of overlarge span of the pressure relief window, the middle mounting plate which plays a supporting role for the pressure relief window is arranged in the middle of the top surface of the main bin body and is fixed in a hanging and spot welding combined mode. In addition, the guide rod is additionally arranged on the periphery of the wire passing hole, so that the cable is prevented from being scratched due to an overlarge bending angle at the penetrating position, and a protection effect is achieved.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a perspective view of the present invention from a perspective when a side wall panel is removed;
FIG. 3 is a perspective view of the present invention from another perspective when a side wall panel is removed;
FIG. 4 is a perspective view of the present invention from a further perspective when a side wall panel is removed;
FIG. 5 is an enlarged partial schematic view of the wire passing hole location of FIG. 3;
fig. 6 is a partially enlarged view of the position of the heat dissipation window of fig. 4.
In the figure:
1. main bin body 2, front door body 3, observation window 4 and explosion-proof glass
5. Convex edge 6, inner bin body 7, cable bracket 8 and additional bin body
9. Wire passing hole 10, guide rod 11, heat dissipation window 12 and edge mounting plate
13. Connecting rod 14, middle mounting plate 15, hook body 16 and rubber sheath
17. Wire passing grooves 18 and stud bolts.
Detailed Description
Hereinafter, specific embodiments of the present invention will be described in detail. Well-known structures or functions may not be described in detail in the following embodiments in order to avoid unnecessarily obscuring the details. Approximating language, as used herein in the following examples, may be applied to identify quantitative representations that could permissibly vary in number without resulting in a change in the basic function. Unless defined otherwise, technical and scientific terms used in the following examples have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
Example 1
A10 kV insulating ring main unit is shown in figures 1-4 and comprises a main cabin body 1, a front door body 2, an observation window 3, explosion-proof glass 4, a convex edge 5, an inner cabin body 6, a cable support 7, an additional cabin body 8, a wire passing hole 9, a guide rod 10, a heat dissipation window 11, an edge mounting plate 12, a connecting rod 13, an intermediate mounting plate 14 and a hook body 15, wherein the front end of the main cabin body 1 is connected with the front door body 2, the front door body 2 is respectively provided with the observation window 3 and the explosion-proof glass 4, the front door body 2 is provided with an instrument, the instrument is positioned at the rear side of the explosion-proof glass 4, the convex edge 5 is fixedly connected to the front door body 2, and the convex edge 5 is positioned above the explosion-proof glass 4; an inner bin body 6 is arranged in the main bin body 1, a cable bracket 7 is fixedly connected in the inner bin body 6, an additional bin body 8 is connected outside the main bin body 1, a wire passing hole 9 is respectively arranged between the additional bin body 8 and the main bin body 1 and between the main bin body 1 and the inner bin body 6, a guide rod 10 is fixedly connected to the periphery of the wire passing hole 9, the axis of the guide rod 10 is parallel to the axis of the wire passing hole 9, and a heat radiation window 11 is arranged on the side wall of the additional bin body 8; fixedly connected with edge mounting panel 12 in the top edge of the main storehouse body 1, fixedly connected with connecting rod 13 between two inner walls of the main storehouse body 1, lower extreme at middle mounting panel 14 has coupler body 15, coupler body 15 transversely articulates on connecting rod 13, coupler body 15 is fixed with the contact position spot welding of connecting rod 13, middle mounting panel 14 is located the top of the main storehouse body 1, the pressure release window respectively with middle mounting panel 14 and edge mounting panel 12 fixed connection, the pressure release window seals the clearance between middle mounting panel 14 and the edge mounting panel 12.
The device has the following structural characteristics: the main cabin body 1 is a main body shell of the ring main unit and is used for accommodating and protecting internal electrical elements; the front door body 2 is used for opening or closing the main bin body 1; the observation window 3 is used for peeping the inner situation from the outside; the explosion-proof glass 4 is used for protecting the instrument and avoiding bursting out during pressure relief; the convex edge 5 can be used as an acting point for manually opening the front door body 2 and can also play a certain shielding role on the explosion-proof glass 4 from the upper part; the inner cabin body 6 can also be called a cable chamber and is used for connecting cables, and electrical elements such as fuses, current transformers and the like can also be loaded in the space; the cable bracket 7 is used for guiding and fixing the cable; the additional bin body 8 is a transition space before the cable enters the main bin body 1; the wire through hole 9 is used for penetrating through the cable; the guide rod 10 positioned on the periphery of the wire passing hole 9 is attached to the cable and used for guiding the cable and avoiding overlarge bending angle of the cable at a penetrating position; the heat dissipation window 11 can play a role in natural heat dissipation; the top surface of the main bin body 1 is a pressure relief surface, so the large pressure relief area can ensure sufficient pressure relief, and the pressure relief area is positioned at the top end of the main bin body 1, so peripheral personnel are not easily injured during pressure relief; in order to avoid the problem of overlarge span of the pressure relief window, the top surface of the main bin body 1 is additionally provided with the middle mounting plate 14, the middle mounting plate 14 is transversely hung on the connecting rod 13 by utilizing the hook body 15 at the lower end of the middle mounting plate and is fixed by spot welding, when pressure relief occurs, one side of the middle mounting plate 14 is upturned due to impact, the hook body 15 is separated from the connecting rod 13 immediately, so that the middle mounting plate 14 is burst open, and the whole pressure relief surface is completely released; in a normal use state, the fixing strength of spot welding is enough to support the middle mounting plate 14 and the pressure relief window thereon, so that the structure can be ensured to be stable; each pressure relief window has one end connected to the edge mounting plate 12 and the other end connected to the middle mounting plate 14.
Example 2
A10 kV insulating ring main unit is shown in figures 1-4 and comprises a main cabin body 1, a front door body 2, an observation window 3, explosion-proof glass 4, a convex edge 5, an inner cabin body 6, a cable support 7, an additional cabin body 8, a wire passing hole 9, a guide rod 10, a heat dissipation window 11, an edge mounting plate 12, a connecting rod 13, an intermediate mounting plate 14 and a hook body 15, wherein the front end of the main cabin body 1 is connected with the front door body 2, the front door body 2 is respectively provided with the observation window 3 and the explosion-proof glass 4, the front door body 2 is provided with an instrument, the instrument is positioned at the rear side of the explosion-proof glass 4, the convex edge 5 is fixedly connected to the front door body 2, and the convex edge 5 is positioned above the explosion-proof glass 4; an inner bin body 6 is arranged in the main bin body 1, a cable bracket 7 is fixedly connected in the inner bin body 6, an additional bin body 8 is connected outside the main bin body 1, a wire passing hole 9 is respectively arranged between the additional bin body 8 and the main bin body 1 and between the main bin body 1 and the inner bin body 6, a guide rod 10 is fixedly connected to the periphery of the wire passing hole 9, the axis of the guide rod 10 is parallel to the axis of the wire passing hole 9, and a heat radiation window 11 is arranged on the side wall of the additional bin body 8; fixedly connected with edge mounting panel 12 in the top edge of the main storehouse body 1, fixedly connected with connecting rod 13 between two inner walls of the main storehouse body 1, lower extreme at middle mounting panel 14 has coupler body 15, coupler body 15 transversely articulates on connecting rod 13, coupler body 15 is fixed with the contact position spot welding of connecting rod 13, middle mounting panel 14 is located the top of the main storehouse body 1, the pressure release window respectively with middle mounting panel 14 and edge mounting panel 12 fixed connection, the pressure release window seals the clearance between middle mounting panel 14 and the edge mounting panel 12. The observation window 3 is made of explosion-proof glass; the instruments are provided with a plurality of instruments, and each instrument is sealed at the back side of an independent explosion-proof glass 4. Four guide rods 10 are uniformly distributed on the periphery of the wire passing hole 9; the end of the guide rod 10 is hemispherical. The protruding edge 5 inclines downwards, and the protruding edge 5 is made of stainless steel. The bin body comprises a main bin body 1 and an additional bin body 8, wherein the main bin body and the additional bin body are fixedly connected onto the base, and the height from the top surface of the base to the ground is not less than 20 cm.
Considering the requirement that the cables are moved and adjusted between adjacent wire passing holes, in the preferred embodiment, the number of the wire passing holes 9 between the additional bin body 8 and the main bin body 1 and between the main bin body 1 and the inner bin body 6 is three, and the three wire passing holes are communicated through the wire passing grooves. Therefore, the three wire passing holes are uniformly distributed for passing through the wires at different positions, and the wire passing grooves 17 can enable the cables of the adjacent wire passing holes to move after passing through.
Considering that the wire passing hole and the wire passing groove have the possibility of excessive friction on the wire during the process of wire cable penetration and long-term operation, in the preferred embodiment, the rubber sheath 16 is innovatively arranged on the hole wall of the wire passing hole and the groove wall of the wire passing groove.
In consideration of the passive heat dissipation and dust prevention requirements of the heat dissipation window, in a preferred embodiment, the heat dissipation window is innovatively provided with hollow rectangular holes, and the heat dissipation window is covered and installed with aluminum alloy heat dissipation plates with uniformly distributed rectangular through holes. The aluminum alloy heating panel possesses quick heat conductivility, and the equipartition rectangle through-hole is favorable to dustproof, can set up the one deck dust screen, so guarantee still to possess reliable passive radiating effect under the condition of ventilation.
In consideration of the possibility of untimely heat dissipation when the heat is excessive, in the preferred embodiment, the aluminum alloy heat dissipation plate is innovatively connected to the heat dissipation window through the stud bolts 18; and the stud bolt is also provided with a cooling fan. The radiator fan has realized the initiative heat dissipation, and stud's structure is that same position aluminum alloy heating panel and radiator fan can be fixed simultaneously, also can be selective install radiator fan additional, need not to set up the hole site alone.
In view of the possible damage to the cable when guiding the cable, in a preferred embodiment, we innovatively design the guiding rod with a further protective silicone sleeve, i.e. the outer wall of the guiding rod is sleeved with the protective silicone sleeve.
The embodiments of the present invention have been described in detail, but the description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention. Any modification, equivalent replacement, and improvement made within the scope of the application of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A10 kV insulating ring main unit is characterized by comprising a main cabin body (1), a front door body (2), an observation window (3), explosion-proof glass (4), a protruding edge (5), an inner cabin body (6), a cable support (7), an additional cabin body (8), a wire passing hole (9), a guide rod (10), a heat dissipation window (11), an edge installation plate (12), a connecting rod (13), a middle installation plate (14) and a hook body (15), wherein the front end of the main cabin body (1) is connected with the front door body (2), the front door body (2) is respectively provided with the observation window (3) and the explosion-proof glass (4), the front door body (2) is provided with an instrument, the instrument is positioned at the rear side of the explosion-proof glass (4), the protruding edge (5) is fixedly connected to the front door body (2), and the protruding edge (5) is positioned above the explosion-proof glass (4); an inner bin body (6) is arranged in the main bin body (1), and a cable bracket (7) is fixedly connected in the inner bin body (6); an additional bin body (8) is connected to the outside of the main bin body (1), wire passing holes (9) are respectively formed between the additional bin body (8) and the main bin body (1) and between the main bin body (1) and the inner bin body (6), a guide rod (10) is fixedly connected to the periphery of each wire passing hole (9), the axis of each guide rod (10) is parallel to the axis of each wire passing hole (9), and a heat dissipation window (11) is formed in the side wall of the additional bin body (8); fixedly connected with edge mounting panel (12) in the top edge of the main storehouse body (1), fixedly connected with connecting rod (13) between two inner walls of the main storehouse body (1), lower extreme at middle mounting panel (14) has coupler body (15), coupler body (15) transversely articulate on connecting rod (13), coupler body (15) are fixed with the contact position spot welding of connecting rod (13), middle mounting panel (14) are located the top of the main storehouse body (1), the pressure release window respectively with middle mounting panel (14) and edge mounting panel (12) fixed connection, the pressure release window seals the clearance between middle mounting panel (14) and edge mounting panel (12).
2. The 10kV insulated ring main unit according to claim 1, wherein the observation window (3) is made of explosion-proof glass; the number of the meters is several, and each meter is sealed at the rear side of an independent explosion-proof glass (4).
3. The 10kV insulating ring main unit as claimed in claim 1, wherein four guide rods (10) are provided, and the four guide rods (10) are uniformly distributed on the periphery of the wire passing hole (9); the end of the guide rod (10) is in a hemispherical shape.
4. The 10kV insulating ring main unit as claimed in claim 1, wherein the protruding edge (5) is inclined downwards, and the protruding edge (5) is made of stainless steel.
5. The 10kV insulated ring main unit as claimed in claim 1, further comprising a base, wherein the main cabin (1) and the additional cabin (8) are fixedly connected to the base, and the height from the top surface of the base to the ground is not less than 20 cm.
6. The 10kV insulating ring main unit according to claim 3, wherein there are three wire passing holes (9) between the additional cabin body (8) and the main cabin body (1) and between the main cabin body (1) and the inner cabin body (6), and the three wire passing holes are communicated with each other through wire passing grooves.
7. The 10kV insulated ring main unit as claimed in claim 6, wherein the hole wall of the wire passing hole and the groove wall of the wire passing groove are both provided with rubber sheaths.
8. The 10kV insulation ring main unit as claimed in claim 1, wherein the heat dissipation window is a hollow rectangular hole, and the heat dissipation window is covered with aluminum alloy heat dissipation plates uniformly distributed with rectangular through holes.
9. The 10kV insulated ring main unit as claimed in claim 8, wherein the aluminum alloy heat dissipation plate is connected to the heat dissipation window through a stud; and the stud bolt is also provided with a cooling fan.
10. The 10kV insulating ring main unit as claimed in claim 3, wherein the outer wall of the guiding rod is sleeved with a silica gel protective sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011160041.9A CN112260122B (en) | 2020-10-26 | 2020-10-26 | 10kV insulation ring main unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011160041.9A CN112260122B (en) | 2020-10-26 | 2020-10-26 | 10kV insulation ring main unit |
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| CN112260122A true CN112260122A (en) | 2021-01-22 |
| CN112260122B CN112260122B (en) | 2022-06-14 |
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| CN211046082U (en) * | 2019-12-21 | 2020-07-17 | 深圳市创奇电气有限公司 | Low-voltage cabinet convenient to installation wiring |
| CN211351321U (en) * | 2020-03-05 | 2020-08-25 | 广州拓益电气有限公司 | Ring main unit with high safety performance |
| CN111682419A (en) * | 2020-07-16 | 2020-09-18 | 江苏宏强电气集团有限公司 | Pressure release protection mechanism and switch cabinet |
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|---|---|
| CN112260122B (en) | 2022-06-14 |
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