CN223884814U - Ring main unit with sulfur hexafluoride monitoring function - Google Patents

Abstract

This utility model provides a ring main unit with sulfur hexafluoride (SF6) monitoring function, belonging to the field of electrical engineering technology. Its structure includes: a first groove on the outside of the enclosure; a protrusion on the inner wall of the housing, the protrusion interlocking with the first groove; a hole in the first groove; a second groove on the housing; a spring plate in the second groove; a protrusion at the lower end of one side of the spring plate; a pressure plate at the upper end of the other side of the spring plate; a SF6 sensor installed in the housing; a transparent window on the surface of the housing; and the sensor's detection probe mounted on the inner wall of the cabinet. This utility model separates the SF6 sensor body and the detection probe, installing the body in an external, detachable housing, and designing an external protective structure for the detection probe. Based on this structure, it effectively avoids damage to the sensor from external forces and greatly reduces the possibility of accidental contact with the detection probe, resulting in a more robust and reliable structure.

Description

Ring main unit with sulfur hexafluoride monitoring function

Technical Field

The utility model relates to the technical field of electrical engineering, in particular to a ring main unit with a sulfur hexafluoride monitoring function.

Background

The ring main unit is a switching device for a secondary power distribution system, and is mainly used between a power distribution substation and an end consumer to ensure continuous power supply and isolate a fault part from a network ‌. Ring main units are typically composed of circuit breakers, fuses and disconnectors for providing uninterrupted power and protecting the distribution network in case of a fault. ‌ A

The sulfur hexafluoride gas has excellent electrical insulation performance, and can effectively prevent current from passing through the sulfur hexafluoride gas under a high-voltage electric field, so that insulation safety among all electrical elements in the ring main unit is ensured. The high insulating capability not only improves the operation efficiency of the ring main unit, but also greatly reduces the safety risk caused by electrical faults. However, the leakage of sulfur hexafluoride gas brings serious potential safety hazards, which not only affects the insulation performance of equipment, but also endangers the safety of surrounding personnel and the environment, so that the sulfur hexafluoride gas monitoring system has important safety significance. In the prior art, sulfur hexafluoride is monitored by a sensor, however, the sensor is installed in the ring main unit for a long time, and is often damaged due to the lack of a protection structure.

Disclosure of Invention

The utility model aims to solve the technical problem of how to design a more stable and reliable protection structure for the sulfur hexafluoride monitor built in the ring main unit.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

The utility model provides a looped netowrk cabinet with sulfur hexafluoride monitoring function, the intelligent cabinet temperature adjusting device comprises a cabinet body, a door body, the ring cover encloses the fender, a housing, first recess, the sand grip, the hole, the second recess, the spring leaf, the bump, the transparent window, detect the probe, the screw hole, the screw, the backup pad, the protective housing, wherein, be equipped with the door body at the front end of the cabinet body, be equipped with the ring cover at the rear end of the cabinet body, the outside fixedly connected with that encloses the fender in the ring cover, be equipped with first recess in enclosing the fender outside, be equipped with the sand grip on the inner wall of casing, the sand grip and the mutual cartridge of first recess are equipped with the hole on first recess, be equipped with the second recess on the casing, be equipped with the spring leaf in the second recess, be equipped with the bump at the lower extreme of one side of spring leaf, be equipped with the finger board at the upper end of the opposite side of spring leaf, install sulfur hexafluoride sensor in the casing, be equipped with the transparent window at the casing surface, sulfur hexafluoride sensor's detect probe fixed connection is on the inner wall of the cabinet, be equipped with the screw hole at the lateral part of detecting the probe, screw runs through backup pad and screw hole fastening connection, be equipped with the protective housing in the front side of backup pad.

Preferably, the inner edge of the ring sleeve is fixedly connected with a flexible ring body, the front end and the rear end of the flexible ring body are turned outwards, and the axial length of the flexible ring body is larger than that of the ring sleeve.

Preferably, a plurality of grooves are arranged on the outer surface of the shell, the grooves extend along the straight line direction, and the grooves are parallel to each other.

Preferably, a grille is arranged on the side part of the cabinet body, and a baffle is arranged on the upper edge of the grille.

Preferably, a bracket is fixedly connected to the inner wall of the cabinet body, and the detection probe is mounted on the bracket.

Preferably, the detection probe is connected with the body of the sulfur hexafluoride sensor through a wire, and the wire penetrates through the annular sleeve.

Preferably, two screws are arranged, and the two screws are respectively positioned at the left side and the right side of the supporting plate.

Preferably, a handle is provided at the outer end of the screw.

According to the technical scheme, the cabinet body is of the main structure of the ring main unit, the door body is used for opening or closing the ring main unit, and the ring sleeve is used for penetrating the cable, so that the body of the sulfur hexafluoride sensor is connected with the detection probe of the sulfur hexafluoride sensor, the detection probe is kept in the cabinet body, the sensor body is arranged outside the cabinet body, an outer protection structure is additionally arranged for the detection probe, and the sensor is prevented from being damaged due to external force factors. The enclosure is fixed on the cabinet body, and the first groove on the enclosure can be used for being inserted with the convex strips of the shell, so that the installation and the disassembly between the shell and the cabinet body are realized, and the body structure of the sulfur hexafluoride sensor is installed in the shell. When the first groove and the convex strips are inserted, the convex points are pressed into the holes on the first groove by the spring pieces in the second groove, so that the locking of the shell and the enclosure is realized, and the transparent window on the shell is convenient for observing the reading of the sensor from the outside. For the detection probe of the sulfur hexafluoride sensor, a screw hole is formed in the side end of the detection probe, a screw is screwed in, the supporting plate is pressed on the surface of the detection probe, and the outer protection effect is achieved through the protective shell.

The utility model provides a ring main unit with a sulfur hexafluoride monitoring function. According to the technical scheme, the body of the sulfur hexafluoride sensor and the detection probe are installed in a split mode, the body is installed in an external detachable shell, and an external protection structure is designed for the detection probe. Based on the structure, the problem that the sensor is damaged by external force is effectively avoided, the possibility that the detection probe is subjected to false touch is greatly reduced, and the structure is more stable and reliable.

Drawings

FIG. 1 is a first perspective view of the present utility model;

FIG. 2 is an enlarged partial view of the A position of FIG. 1;

FIG. 3 is a second perspective view of the present utility model;

FIG. 4 is an enlarged view of a portion of the B position of FIG. 3;

FIG. 5 is a third perspective view of the present utility model;

FIG. 6 is an enlarged partial view of the position C of FIG. 5;

in the figure:

Detailed Description

Hereinafter, embodiments of the present utility model will be described in detail. In order to avoid unnecessary detail, well-known structures or functions will not be described in detail in the following embodiments. Approximating language, as used in the following examples, may be applied to create a quantitative representation that could permissibly vary 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 utility model belongs.

Example 1

The utility model provides a looped netowrk cabinet with sulfur hexafluoride monitoring function, as shown in fig. 1~ 6, including cabinet body 1, door body 2, the ring cover 3, enclose fender 4, casing 5, first recess 6, sand grip 7, hole 8, second recess 9, spring leaf 10, bump 11, transparent window 15, test probe 16, screw hole 17, screw 18, backup pad 19, protective housing 20, wherein, be equipped with the door body at the front end of cabinet body 1, be equipped with the ring cover 3 at the rear end of cabinet body 1, be fixedly connected with encloses fender 4 in the outside of ring cover 3, be equipped with first recess 6 in enclosing fender 4 outside, be equipped with sand grip 7 on the inner wall of casing 5, sand grip 7 and first recess 6 are mutually inserted, be equipped with hole 8 on first recess 6, be equipped with second recess 9 on casing 5, be equipped with spring leaf 10 in second recess 9, be equipped with bump 11 in the lower extreme on one side of spring leaf 10, be equipped with the finger hold down plate on the upper end of the opposite side of spring leaf 10, install sulfur hexafluoride sensor in casing 5, be equipped with transparent window 15 on the surface of casing 5, be equipped with the screw 16 on the side of test probe 16 is equipped with the backup pad 19 on the side of screw hole 17, be equipped with the screw hole 17 on the side of the test probe 16 is fixed connection to be equipped with the backup pad 19.

In the technical scheme, the cabinet body 1 is of a main body structure of the ring main unit, the door body 2 is used for opening or closing the ring main unit, the ring sleeve 3 is used for penetrating a cable, so that the body of the sulfur hexafluoride sensor is connected with the detection probe 16 of the sulfur hexafluoride sensor, the detection probe 16 is reserved in the cabinet body 1, the sensor body is arranged outside the cabinet body 1, an outer protection structure is additionally arranged for the detection probe 16, and the sensor is prevented from being damaged due to external force factors easily. The enclosure 4 is fixed on the cabinet body 1, and the first groove 6 on the enclosure can be used for being inserted with the convex strip 7 of the shell 5, so that the installation and the disassembly between the shell 5 and the cabinet body 1 are realized, and the body structure of the sulfur hexafluoride sensor is installed in the shell 1. When the first groove 6 and the convex strip 7 are inserted, the convex point 11 is pressed into the hole 8 on the first groove 6 by the spring piece 10 in the second groove 9, so that the locking of the shell 5 and the enclosure 4 is realized, and the transparent window 15 on the shell 5 is convenient for observing the reading of the sensor from the outside. In the detection probe 16 of the sulfur hexafluoride sensor, screw holes 17 are formed in the side ends of the detection probe 16, screws 18 are screwed in, a supporting plate 19 is pressed on the surface of the detection probe 16, and an external protection effect is achieved through a protection shell 20.

Example 2

The utility model provides a looped netowrk cabinet with sulfur hexafluoride monitoring function, as shown in fig. 1~ 6, including cabinet body 1, door body 2, the ring cover 3, enclose fender 4, casing 5, first recess 6, sand grip 7, hole 8, second recess 9, spring leaf 10, bump 11, transparent window 15, test probe 16, screw hole 17, screw 18, backup pad 19, protective housing 20, wherein, be equipped with the door body at the front end of cabinet body 1, be equipped with the ring cover 3 at the rear end of cabinet body 1, be fixedly connected with encloses fender 4 in the outside of ring cover 3, be equipped with first recess 6 in enclosing fender 4 outside, be equipped with sand grip 7 on the inner wall of casing 5, sand grip 7 and first recess 6 are mutually inserted, be equipped with hole 8 on first recess 6, be equipped with second recess 9 on casing 5, be equipped with spring leaf 10 in second recess 9, be equipped with bump 11 in the lower extreme on one side of spring leaf 10, be equipped with the finger hold down plate on the upper end of the opposite side of spring leaf 10, install sulfur hexafluoride sensor in casing 5, be equipped with transparent window 15 on the surface of casing 5, be equipped with the screw 16 on the side of test probe 16 is equipped with the backup pad 19 on the side of screw hole 17, be equipped with the screw hole 17 on the side of the test probe 16 is fixed connection to be equipped with the backup pad 19. The inner edge of the ring sleeve 3 is fixedly connected with a flexible ring body 13, the front end and the rear end of the flexible ring body 13 are turned outwards, and the axial length of the flexible ring body 13 is greater than that of the ring sleeve 3. A plurality of groove bodies 14 are arranged on the outer surface of the shell 5, the groove bodies 14 extend along the straight line direction, and the groove bodies 14 are parallel to each other. A grille 12 is arranged at the side part of the cabinet body 1, and a baffle is arranged at the upper edge of the grille 12. A bracket is fixedly connected to the inner wall of the cabinet 1, and the detection probe 16 is mounted on the bracket. The detection probe 16 is connected with the body of the sulfur hexafluoride sensor through a wire, and the wire penetrates through the annular sleeve 3. The two screws 18 are provided, and the two screws 18 are respectively positioned at the left side and the right side of the supporting plate 19. A handle is provided at the outer end of the screw 18.

The foregoing describes the embodiments of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modification, equivalent replacement, improvement, etc. made within the scope of the present utility model should be included in the protection scope of the present utility model.

Claims (8)

1. The utility model provides a looped netowrk cabinet with sulfur hexafluoride monitoring function, a serial communication port, including cabinet body (1), door body (2), ring cover (3), enclose fender (4), casing (5), first recess (6), sand grip (7), hole (8), second recess (9), spring leaf (10), bump (11), transparent window (15), detect probe (16), screw hole (17), screw (18), backup pad (19), protective housing (20), wherein, be equipped with the door body at the front end of cabinet body (1), be equipped with ring cover (3) at the rear end of cabinet body (1), outside fixedly connected with encloses fender (4) at ring cover (3), be equipped with first recess (6) in enclosing fender (4) outside, be equipped with sand grip (7) on the inner wall of casing (5), sand grip (7) and first recess (6) cartridge each other, be equipped with hole (8) on first recess (6), be equipped with second recess (9) on casing (5), be equipped with in second recess (9), be equipped with bump (10) in second recess (10), be equipped with in the lower extreme in one side of cabinet body (1) is equipped with the sulfur hexafluoride (11), be equipped with in the spring leaf in the side (5) and indicate that install the spring leaf in the spring leaf is equipped with sensor, the sulfur hexafluoride sensor is characterized in that a transparent window (15) is arranged on the surface of the shell (5), a detection probe (16) of the sulfur hexafluoride sensor is fixedly connected to the inner wall of the cabinet body (1), a screw hole (17) is formed in the side portion of the detection probe (16), a screw (18) penetrates through a supporting plate (19) and is fixedly connected with the screw hole (17), and a protective shell (20) is arranged on the front side of the supporting plate (19).

2. The ring main unit with the sulfur hexafluoride monitoring function according to claim 1, wherein a flexible ring body (13) is fixedly connected to the inner edge of the ring sleeve (3), the front end and the rear end of the flexible ring body (13) are turned outwards, and the axial length of the flexible ring body (13) is larger than that of the ring sleeve (3).

3. The ring main unit with the sulfur hexafluoride monitoring function according to claim 1, wherein a plurality of groove bodies (14) are arranged on the outer surface of the shell (5), the groove bodies (14) extend along the straight line direction, and the groove bodies (14) are parallel to each other.

4. The ring main unit with the sulfur hexafluoride monitoring function according to claim 1, wherein a grid (12) is arranged on the side portion of the main unit body (1), and a baffle is arranged on the upper edge of the grid (12).

5. The ring main unit with the sulfur hexafluoride monitoring function according to claim 1, wherein a bracket is fixedly connected to the inner wall of the main unit body (1), and the detection probe (16) is installed on the bracket.

6. The ring main unit with the sulfur hexafluoride monitoring function according to claim 1, wherein the detection probe (16) is connected with the body of the sulfur hexafluoride sensor through a wire, and the wire penetrates through the ring sleeve (3).

7. The ring main unit with the sulfur hexafluoride monitoring function according to claim 1, wherein two screws (18) are arranged, and the two screws (18) are respectively arranged on the left side and the right side of the supporting plate (19).

8. A ring main unit with sulfur hexafluoride monitoring function according to claim 1, characterized in that a handle is arranged at the outer end of the screw (18).