CN211351321U - Ring main unit with high safety performance - Google Patents
Ring main unit with high safety performance Download PDFInfo
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- CN211351321U CN211351321U CN202020262852.9U CN202020262852U CN211351321U CN 211351321 U CN211351321 U CN 211351321U CN 202020262852 U CN202020262852 U CN 202020262852U CN 211351321 U CN211351321 U CN 211351321U
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Abstract
The utility model relates to a high-safety ring main unit, which comprises a base, a mechanism chamber and a high-pressure chamber are arranged at the front and the back of the upper end of the base, a vertical clapboard is vertically arranged in the base and divides the interior of the base into a high-voltage cable chamber and a pressure relief chamber, the pressure relief chamber is separated from the high-pressure chamber at the upper end by a horizontal clapboard, and the bottom of the pressure relief chamber is not closed; the vertical partition plate is provided with a first pressure relief window, the transverse partition plate is provided with a second pressure relief window, a pressure relief plate plugged on the first pressure relief window is arranged in the pressure relief chamber, and a pressure relief valve plugged on the second pressure relief window is further arranged in the pressure relief chamber. Can avoid causing the injury to people around, improve the security performance.
Description
Technical Field
The utility model belongs to the technical field of electrical equipment and specifically relates to a looped netowrk cabinet that security performance is high is related to.
Background
The ring main unit is a group of transmission and distribution electrical equipment (high-voltage switch equipment), is arranged in a metal or nonmetal insulating cabinet body or is made into electrical equipment of an assembled interval ring main power supply unit, adopts a load switch and a fuse at the core part, and has the advantages of simple structure, small volume, low price, capability of improving power supply parameters and performance, power supply safety and the like. 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.
In the high-voltage ring main unit, when the inside breaks down, will produce powerful electric arc, if powerful electric arc can't in time obtain releasing, will prop and explode the cabinet body, can cause the threat to personnel's around the ring main unit life safety from this. Therefore, it is necessary to provide a ring main unit capable of timely releasing pressure.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art not enough, provide a looped netowrk cabinet that security performance is high, break down in inside, when producing powerful electric arc, can guarantee that electric arc can in time be released and can not prop and explode the cabinet body, avoid the cabinet body to explode and cause the injury to people around.
The purpose of the utility model is realized through the following technical scheme:
a ring main unit with high safety performance comprises a base, wherein a mechanism chamber and a high-pressure chamber are arranged in the front and at the back of the upper end of the base, a vertical partition plate is vertically arranged in the base and divides the interior of the base into a high-voltage cable chamber and a pressure relief chamber, the pressure relief chamber and the high-pressure chamber at the upper end of the pressure relief chamber are separated by a horizontal partition plate, and the bottom of the pressure relief chamber is not closed; the vertical partition plate is provided with a first pressure relief window, the transverse partition plate is provided with a second pressure relief window, a pressure relief plate plugged on the first pressure relief window is arranged in the pressure relief chamber, and a pressure relief valve plugged on the second pressure relief window is further arranged in the pressure relief chamber.
Furthermore, the pressure relief plate is installed on the vertical partition plate, the upper end of the pressure relief plate is fixed on the upper side of the first pressure relief window, and the lower end of the pressure relief plate is fixed on the lower side of the first pressure relief window through plastic screws.
Furthermore, the upper end of the pressure relief plate is fixed on the vertical partition plate through a screw, and a plurality of turnover holes which are arranged at intervals along the horizontal direction are formed in the position, located on the lower side of the screw, of the pressure relief plate.
Furthermore, the pressure relief valve comprises a pressure relief sheet and a fixing ring, the pressure relief sheet is fixedly arranged on the bottom surface of the diaphragm plate through the fixing ring, and the thickness of the pressure relief sheet is smaller than that of the diaphragm plate.
Furthermore, the base, the mechanism chamber and the high-pressure chamber are respectively formed by assembling and connecting independent box bodies.
Furthermore, a lower door arranged at the front end of the base is of a double-layer thickened structure.
The utility model discloses following beneficial effect has: the utility model provides a looped netowrk cabinet that security performance is high, the pressure release room has been set up in the base, high tension cable room and high-pressure chamber communicate with the pressure release room through first pressure release window and second pressure release window respectively, set up pressure relief board and relief valve on first pressure release window and second pressure release window respectively, when the electric arc that breaks down is too strong, high tension cable room and high-pressure chamber pressure are too high, will break through comparatively weak pressure relief board or relief valve, electric arc is let out from first pressure release window or second pressure release window, let out in the cable pit through the opening of pressure release room bottom, avoid the too high lateral wall or the door that explodes the looped netowrk cabinet that dashes of pressure, can avoid causing the injury to people around from this, and the security performance is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the ring main unit of the present invention;
fig. 2 is a schematic view of the internal structure of the ring main unit after the pressure relief plate and the pressure relief valve are installed;
FIG. 3 is an enlarged view of area A of FIG. 2;
FIG. 4 is an enlarged view of area B of FIG. 2;
fig. 5 is a schematic view of the internal structure of the ring main unit of the present invention without the pressure relief plate and the pressure relief valve;
fig. 6 is an enlarged schematic view of region C in fig. 5.
The specific structure in the figure illustrates that: the device comprises a base 1, a vertical partition plate 11, a transverse partition plate 12, a first pressure relief window 13, a second pressure relief window 14, a mechanism chamber 2, a high-pressure chamber 3, a high-pressure cable chamber 4, a pressure relief chamber 5, a pressure relief valve 6, a pressure relief sheet 61, a fixed ring 62, a pressure relief plate 7, a turnover hole 71, a plastic screw 72 and a lower door 8.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments shown in the drawings.
A ring main unit with high safety performance comprises a base 1, wherein a mechanism chamber 2 and a high-voltage chamber 3 are arranged in the front and at the back of the upper end of the base 1, a vertical partition plate 11 is vertically arranged in the base 1, the interior of the base 1 is divided into a high-voltage cable chamber 4 and a pressure relief chamber 5 by the vertical partition plate 11, the pressure relief chamber 5 is divided from the high-voltage chamber 3 at the upper end of the pressure relief chamber by a horizontal partition plate 12, the bottom of the pressure relief chamber 5 is not closed, a cable trench is arranged below the pressure relief chamber 5 during installation, and electric arc can be discharged into the cable trench through the bottom of the pressure relief chamber 5 during discharge; the vertical partition plate 11 is provided with a first pressure relief window 13, the transverse partition plate 12 is provided with a second pressure relief window 14, a pressure relief plate 7 sealed and blocked on the first pressure relief window 13 is arranged in the pressure relief chamber 5, and a pressure relief valve 6 sealed and blocked on the second pressure relief window 14 is further arranged in the pressure relief chamber 5. For vertical partition 11 and horizontal partition 12, the intensity of pressure release board 7 and relief valve 6 is all lower, and when electric arc was too high, pressure release board 7 and pressure release 6 can both be washed out earlier, and electric arc is let out from this, avoids the looped netowrk cabinet body to be washed out badly.
Further, the pressure relief plate 7 is installed on the vertical partition plate 11, the upper end of the pressure relief plate is fixed on the upper side of the first pressure relief window 13, and the lower end of the pressure relief plate is fixed on the lower side of the first pressure relief window 13 through a plastic screw 72. The lower end of the pressure relief plate 7 is connected with the vertical partition plate 11 through the plastic screw 72, and because the plastic screw 72 is fragile, when a fault occurs, the plastic screw 72 can be easily broken by high pressure in the high-voltage cable chamber 4, the pressure relief plate 7 is punched, and the arc pressure is conveniently released.
Further, the upper end of the pressure release plate 7 is fixed on the vertical partition plate 11 through a screw, and a plurality of turnover holes 71 arranged at intervals in the horizontal direction are formed in the position, located on the lower side of the screw, of the pressure release plate 7. The turnover holes 71 are formed, so that the strength of the pressure release plate 7 at the positions where the turnover holes 71 are formed is weakened, when the plastic screws 72 are broken, the pressure release plate 7 can be conveniently turned up along the positions where the turnover holes 71 are located, the opening degree of the pressure release plate 7 is ensured, and electric arcs can be smoothly discharged.
Further, the relief valve 6 comprises a relief sheet 61 and a fixing ring 62, the relief sheet 61 is fixed on the bottom surface of the diaphragm plate 12 through the fixing ring 62, and the thickness of the relief sheet 61 is smaller than that of the diaphragm plate 12. The pressure relief sheet 61 is fixed on the bottom surface of the diaphragm 12 through the fixing ring 62, the thickness of the pressure relief sheet 61 is thin, and the pressure relief sheet is easily broken, when the pressure in the high-pressure chamber is too high, the pressure relief sheet 61 is firstly broken from top to bottom, the pressure is smoothly released, and danger is avoided.
Further, the base 1, the mechanism chamber 2 and the high pressure chamber 3 are respectively formed by assembling and connecting independent box bodies. Therefore, the edges of the base 1, the mechanism chamber 2 and the high-pressure chamber 3 can be effectively connected with each other with strong force, the firm reliability of the connection of the side walls of the boxes is ensured, the impact strength of the box is improved, the box can be prevented from being broken by internal high pressure, and the safety performance is improved.
Further, a lower door 8 arranged at the front end of the base 1 is of a double-layer thickened structure. Lower door 8 is double-deck thickening structure, specifically can adopt double-deck cold-rolled sheet structural design, can improve its shock strength from this, avoids being broken and takes place danger.
The above mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention can not be limited thereby, and all the simple equivalent changes and modifications made according to the claims and the description of the present invention are still included in the scope of the present invention.
Claims (6)
1. The utility model provides a looped netowrk cabinet that security performance is high, includes base (1), be provided with mechanism room (2) and hyperbaric chamber (3) around base (1) upper end, its characterized in that: a vertical clapboard (11) is vertically arranged in the base (1), the vertical clapboard (11) divides the interior of the base (1) into a high-voltage cable chamber (4) and a pressure relief chamber (5) from front to back, the pressure relief chamber (5) is separated from a high-voltage chamber (3) at the upper end of the pressure relief chamber by a horizontal clapboard (12), and the bottom of the pressure relief chamber (5) is not closed; the pressure relief device is characterized in that a first pressure relief window (13) is formed in the vertical partition plate (11), a second pressure relief window (14) is formed in the transverse partition plate (12), a pressure relief plate (7) which is plugged on the first pressure relief window (13) is arranged in the pressure relief chamber (5), and a pressure relief valve (6) which is plugged on the second pressure relief window (14) is further arranged in the pressure relief chamber (5).
2. The ring main unit with high safety performance as claimed in claim 1, wherein: the pressure relief plate (7) is installed on the vertical partition plate (11), the upper end of the pressure relief plate is fixed on the upper side of the first pressure relief window (13), and the lower end of the pressure relief plate is fixed on the lower side of the first pressure relief window (13) through a plastic screw (72).
3. The ring main unit with high safety performance as claimed in claim 2, wherein: the upper end of the pressure relief plate (7) is fixed on the vertical partition plate (11) through a screw, and a plurality of turnover holes (71) which are arranged at intervals along the horizontal direction are formed in the position, located on the lower side of the screw, of the pressure relief plate (7).
4. The ring main unit with high safety performance as claimed in claim 1, wherein: the pressure relief valve (6) comprises a pressure relief sheet (61) and a fixing ring (62), the pressure relief sheet (61) is fixedly arranged on the bottom surface of the diaphragm plate (12) through the fixing ring (62), and the thickness of the pressure relief sheet (61) is smaller than that of the diaphragm plate (12).
5. The ring main unit with high safety performance as claimed in claim 1, wherein: the base (1), the mechanism chamber (2) and the high-pressure chamber (3) are respectively formed by assembling and connecting independent box bodies.
6. The ring main unit with high safety performance as claimed in claim 1, wherein: the lower door (8) arranged at the front end of the base (1) is of a double-layer thickened structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020262852.9U CN211351321U (en) | 2020-03-05 | 2020-03-05 | Ring main unit with high safety performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020262852.9U CN211351321U (en) | 2020-03-05 | 2020-03-05 | Ring main unit with high safety performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211351321U true CN211351321U (en) | 2020-08-25 |
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ID=72096005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020262852.9U Active CN211351321U (en) | 2020-03-05 | 2020-03-05 | Ring main unit with high safety performance |
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| Country | Link |
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| CN (1) | CN211351321U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112260122A (en) * | 2020-10-26 | 2021-01-22 | 国网新疆电力有限公司吐鲁番供电公司 | 10kV insulation ring main unit |
-
2020
- 2020-03-05 CN CN202020262852.9U patent/CN211351321U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112260122A (en) * | 2020-10-26 | 2021-01-22 | 国网新疆电力有限公司吐鲁番供电公司 | 10kV insulation ring main unit |
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