CN213401916U - Sealed PT room of looped netowrk cabinet - Google Patents

Abstract

The utility model relates to a sealed PT room of looped netowrk cabinet relates to looped netowrk cabinet equipment, belongs to the technical field of electricity generation, transformer or distribution. The sealed PT chamber includes: frame subassembly and be used for the thimble assembly of being connected with device once in the gas tank, frame subassembly includes the roof, the bottom plate, the left side board, right side board and panel, thimble assembly includes the sleeve pipe, sleeve clamp plate, independently place PT in an inclosed box, realize once being connected of PT and gas tank through installing the thimble assembly outside the box, for solving the problem that insulating properties descends under influence such as dust and moisture of PT in the surrounding environment, increased the entering of sealing washer and rubber pad in order to prevent dust and aqueous vapor in the thimble assembly, guarantee that the protection level can reach IP54, the performance of PT has been guaranteed, the reliability of PT has been improved.

Description

Sealed PT room of looped netowrk cabinet

Technical Field

The utility model relates to a sealed PT room of looped netowrk cabinet relates to looped netowrk cabinet equipment, belongs to the technical field of electricity generation, transformer or distribution.

Background

With the increasing maturity of ring network power supply technology, the ring main unit is widely applied due to the advantages of small volume, compact structure, convenient installation, simple maintenance, safety, reliability, convenient power supply and the like, is suitable for urban underground cable ring networks and radiation type power grids, and can also be used in various occasions such as wind power stations, small factories, subways and tunnels, ports, airports and the like.

Because the service environment of the ring main unit is relatively complicated, the ring main unit is very easy to be corroded by dust and moisture in the surrounding environment in the actual operation process, on one hand, the operating mechanism is corroded, the mechanism parts are damaged, the service life of the ring main unit is shortened, sometimes, even the transmission mechanism is blocked, the mechanism is prevented from moving, on the other hand, the electric field distribution on the outer surface of the insulating part can be damaged, the current leakage and the surface discharge phenomena are caused, continuous induction voltage is generated on the surface of the insulating part in the long-term operation process, the partial discharge standard exceeding of the insulating part is caused, the insulating property of the insulating part is seriously damaged, and the operation of equipment is influenced. At present, the existing ring main unit in the market pays more attention to the sealing performance of an operating mechanism, the influence of the environment on the performance of the mechanism is reduced by taking certain measures, but important components such as PT and the like are not specially protected, so that the PT has the risk of reduction of the insulating performance, and the PT cannot be normally used.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an invention aim at the not enough of above-mentioned background art, in order to solve the problem that insulating properties descends under the influence of dust and moisture etc. of PT in the surrounding environment, provide the sealed PT room of looped netowrk cabinet, seal PT in the PT room, carry out main loop through bus sleeve pipe and gas tank and be connected, carry out the secondary line through inserting by plane simultaneously and other components and parts and be connected to prevent the entering of dust and aqueous vapor through measures such as sealing washer and rubber pad, guarantee that the protection level can reach IP 54.

The utility model adopts the following technical proposal for realizing the purpose of the invention: a sealed PT cell of a ring main unit, comprising: the frame subassembly and be used for the thimble assembly of being connected with the interior primary device of gas tank, the frame subassembly includes roof, bottom plate, left side board, right side board, backplate and panel, and roof, bottom plate, left side board, right side board and backplate constitute the opening frame body, and the panel mounting is on the opening frame body, the thimble assembly includes sleeve pipe, sleeve clamp plate, and sleeve clamp plate is connected with the gas tank fastening through the fixation nut who passes sleeve clamp plate fixed orifices, and sleeve clamp plate is through fixation nut and the roof fixed connection who passes sleeve clamp plate fixed orifices, and the sealing washer is equipped with to the contact department of sleeve pipe and gas tank bottom plate, and the sleeve pipe has the rubber pad with sleeve clamp plate's contact department pad.

As a further optimization scheme of the sealed PT chamber of the ring main unit, the top plate is provided with a sleeve perforation and a top plate mounting and fixing hole, and the top plate mounting and fixing hole is aligned with the sleeve pressing plate fixing hole when the sleeve assembly is mounted.

As a further optimization scheme of the sealed PT chamber of the ring main unit, a left side plate is provided with an aerial plug assembly through hole and welded with a side plate welding stud for fixing the aerial plug assembly, or a right side plate is provided with an aerial plug assembly through hole and welded with a side plate welding stud for fixing the aerial plug assembly.

As a further optimization scheme of the sealed PT chamber of the ring main unit, one surface, facing the top plate, of the sleeve pressing plate is provided with a sealing strip structure generated through a foaming process.

As a further optimization scheme of the sealed PT room of the ring main unit, the edge of the opening frame body fixedly connected with the panel extends to form a protruding edge, and a welding stud is welded in an electric welding mode.

As a further optimization scheme of a sealed PT chamber of the ring main unit, the bottom plate and the back plate are integrally formed L-shaped steel plates.

As a further optimization scheme of the sealed PT chamber of the ring main unit, the top plate is provided with a bending structure formed after bending treatment.

As a further optimization scheme of the sealed PT chamber of the ring main unit, the sleeve pressing plate is in threaded connection with a welding stud at the bottom of the gas tank through a fixing nut penetrating through a fixing hole of the sleeve pressing plate.

As a further optimization scheme of the sealed PT chamber of the ring main unit, the aviation plug assembly comprises an aviation socket and an aviation plug connector, the aviation plug passes through a perforation of the aviation plug assembly and then is connected with a secondary line in the PT chamber, one end of the aviation plug connector is connected with the aviation plug through threads in a locking mode, and the other end of the aviation plug connector is connected with a secondary line of a PT chamber external component.

As a still further optimization scheme of the sealed PT chamber of the ring main unit, one side of the panel facing the opening frame body is provided with a sealing strip structure corresponding to the position of the convex edge.

The utility model adopts the above technical scheme, following beneficial effect has: by the scheme of the invention, the problems are well solved, and the reliability of the PT performance in operation is ensured.

(1) The utility model relates to a sealed PT room is independently placed PT in a inclosed box, realizes once being connected of PT and gas tank through installing the cover pipe assembly outside the box, for solving the problem that insulating properties descends such as dust and moisture of PT in the surrounding environment under influence, has increased sealing washer and rubber pad in order to prevent the entering of dust and aqueous vapor in the cover pipe assembly, guarantees that the protection level can reach IP54, has guaranteed the performance of PT, has improved the reliability of PT.

(2) Because the protection grade of the PT room that this application relates to can reach IP54, consequently, can install the aviation plug subassembly on the PT room, use the aviation plug to carry out secondary circuit plug-in connection with other components and parts, both improved secondary circuit's protectiveness, also be convenient for change and overhaul, can realize "plug and play".

(3) The utility model relates to a sealed PT room rational in infrastructure, easily make, simple to operate and non-maintaining, and manufacturing cost and maintenance cost are low, can provide a new design for the quality promotion of looped netowrk cabinet.

Drawings

Fig. 1 is a schematic view of the structure of the gas box and the sealed PT chamber.

Fig. 2 is a schematic view of the structure of the sealed PT chamber.

Fig. 3 is a schematic structural view of the frame assembly.

FIG. 4 is a schematic view of a sleeve assembly.

Fig. 5 is a cross-sectional schematic view of the ferrule assembly.

Fig. 6 is a schematic structural view of the sleeve pressing plate.

Fig. 7 is a schematic structural view of a panel.

Fig. 8 is a schematic structural view of the top plate.

FIG. 9 is a schematic structural diagram of an aerial pod assembly.

Fig. 10 is a schematic view of the structure of the base plate.

Description of the winning numbers: 1. gas tank, 2, sealed PT room, 3, frame subassembly, 4, sleeve subassembly, 5, the aviation plug subassembly, 6, the roof, 7-1, the left side board, 7-2, the right side board, 8, the panel, 9, the bottom plate, 10, the sleeve pipe, 11, the sleeve pipe clamp plate, 12, fixation nut, 13, the sealing washer, 14, the rubber pad, 15, the sleeve pipe clamp plate sealing strip, 16, sleeve pipe clamp plate fixed orifices, 17, the panel sealing strip, 18, the aviation plug subassembly passes the hole, 19, curb plate welding stud, 20, the welding stud, 21, roof installation fixed orifices, 22, the sleeve pipe is perforated, 23, protruding limit, 24, the aviation socket, 25, the aviation plug connects, 26, the stud.

Detailed Description

The technical solution of the present invention will be described in detail with reference to the accompanying drawings.

The application relates to a sealed PT room of a ring main unit as shown in figures 1 to 3, wherein the sealed PT room 2 is composed of a frame component 3, a sleeve component 4 and an aviation plug component 5, the sealed PT room is connected with a main loop through the sleeve component 4 and a component in an air box 1, and is connected with other components through an aviation plug component 5 and a secondary line.

As shown in fig. 3, the frame assembly 3 is composed of a top plate 6, a bottom plate 9, side plates 7 and a face plate 8, wherein the bottom plate 9 is an L-shaped steel plate integrally formed with the back plate as shown in fig. 10, the top plate 6, the bottom plate 9, the left side plate 7-1 and the right side plate 7-2 are formed into an open box body through a welding process, welding studs are welded at the front end of the open box body, and the face plate 8 is fixedly connected with the open box body composed of the top plate 6, the bottom plate 9, the left side plate 7-1 and the right side plate 7-2 through the welding studs.

As shown in fig. 8, the top plate is provided with a sleeve through hole 22 and a top plate mounting and fixing hole 21, the edge of the top plate fixedly connected with the panel extends to form a protruding edge 23, and is electrically welded with a welding stud 20, the size of the sleeve through hole 22 is slightly larger than the outer diameter of the sleeve passing part, and is about 2-4 mm, and meanwhile, the sleeve fixing surface needs to be polished smoothly to ensure the sealing effect. To enhance the strength of the top plate, the top plate may be bent to form the bent structure shown in fig. 8.

As shown in figure 3, the left side plate 7-1 is provided with an aerial assembly through hole 18, a side plate welding stud 19 for fixing the aerial assembly is welded on the left side plate, and the installation surface of the aerial assembly needs to be polished smoothly. Correspondingly, the edges of the bottom plate, the side plates and the panel which are fixedly connected extend to form protruding edges, and welding studs are electrically welded on the protruding edges.

As shown in fig. 7, the sealing strip 17 is formed on the back of the panel through a foaming process, and the position of the sealing strip 17 is corresponding to the convex edge of other panels, so that the sealing strip 17 is reliably contacted with the convex edge after the panel is fixed.

As shown in fig. 4 to 6, the sleeve assembly is composed of a sleeve 10, a sleeve pressing plate 11, a sealing ring 13, a rubber gasket 14 and a fixing nut 12. As shown in fig. 1, 4, 6 and 8, the sealing strip 15 is generated on the lower side of the sleeve pressing plate 11 through a foaming process, and the sleeve pressing plate 11 is in threaded connection with a stud 26 electrically welded on the bottom plate of the gas tank through a fixing nut 12 penetrating through a fixing hole 16 of the sleeve pressing plate and is in main loop connection with the gas tank 1; a sealing ring 13 is sleeved at the contact part of the sleeve 10 and the bottom plate of the air box; the contact part of the sleeve 10 and the sleeve pressing plate 11 is padded with a rubber pad 14.

The process of installing the sleeve assembly is as follows: as shown in fig. 1 to 8, the sleeve presser plate 11 is placed on the top plate 6 in alignment with the sleeve presser plate fixing hole 16 and the top plate mounting fixing hole 21; the casing perforation 22 is clearance fit with the casing 10 when the casing 10 is passed through the casing perforation 22; sleeving a sealing ring 13 on a sleeve 10, and enabling a fixing nut 12 to penetrate through a sleeve pressing plate fixing hole 16; the stud 26 at the bottom of the gas tank is screwed into the fixing nut 12, after the fixing nut 12 is screwed, the sealing ring 13 is compacted at the contact position of the gas tank 1 and the sleeve 10, the sleeve 10 compacts the rubber pad 14 at the contact position of the sleeve 10 and the sleeve pressing plate 11, the sealing strip 15 at the lower side of the sleeve pressing plate 11 compacts the top plate 6, the PT chamber is connected with the gas tank at one time through the sleeve assembly outside the PT chamber, and the protection grade can reach IP54 through the sealing device in the sleeve assembly.

The aviation plug assembly is a mature product in the market, and comprises an aviation socket 24 and an aviation plug connector 25, wherein the aviation socket 24 is fixed with a left side plate or a right side plate and is connected with a PT indoor secondary line, one end of the aviation plug connector 25 is connected with the aviation socket 24 through thread locking connection, and the other end of the aviation plug connector is connected with a PT outdoor component through the secondary line. Just because the protection level of the PT room related to the application can reach IP54, the aviation plug component can be installed on the PT room, the protection performance of a secondary circuit is improved, replacement and maintenance are convenient, and plug and play can be realized.

It will be understood that equivalents and modifications may be made thereto by those of ordinary skill in the art based on the technical solution of the present application and the inventive concept thereof, and all such modifications and alterations should fall within the scope of the claims appended hereto.

Claims (10)

1. A sealed PT room of looped netowrk cabinet, its characterized in that includes: frame subassembly and be used for the thimble assembly of being connected with the interior primary device of gas tank, the frame subassembly includes roof, bottom plate, left side board, right side board, backplate and panel, roof, bottom plate, left side board, right side board and backplate constitution opening frame body, panel mounting on the opening frame body, the thimble assembly includes sleeve pipe, sleeve pipe clamp plate, and sleeve pipe clamp plate is through the fixation nut who passes sleeve pipe clamp plate fixed orifices and gas tank fastening connection, sleeve pipe clamp plate is through the fixation nut and the roof fixed connection who passes sleeve pipe clamp plate fixed orifices, and the sealing washer is equipped with to sleeve pipe and the contact department of gas tank bottom plate, and the sleeve pipe has the rubber pad with sleeve pipe clamp plate's contact department pad.

2. The sealed PT chamber of a ring main unit as claimed in claim 1, wherein the top plate is formed with a sleeve through hole and a top plate mounting hole, the top plate mounting hole is aligned with the sleeve press plate fixing hole when the sleeve assembly is mounted.

3. The sealed PT chamber of a ring main unit as claimed in claim 1, wherein the left side plate is perforated with aerial-insertion assembly and welded with side plate welding studs for fixing the aerial-insertion assembly, or the right side plate is perforated with aerial-insertion assembly and welded with side plate welding studs for fixing the aerial-insertion assembly.

4. The sealed PT chamber of a ring main unit as claimed in claim 1, wherein a side of the sleeve pressing plate facing the top plate has a sealing strip structure generated by a foaming process.

5. The sealed PT chamber of a ring main unit as claimed in claim 1, wherein the edge of the opening frame body fixedly connected with the panel is extended with a protruding edge and welded with a welding stud.

6. The sealed PT chamber of a ring main unit as claimed in claim 1, wherein the base plate and the back plate are integrally formed L-shaped steel plates.

7. The sealed PT chamber of a ring main unit as claimed in claim 1, wherein the top plate has a bent structure formed after a bending process.

8. The sealed PT chamber of a ring main unit as claimed in claim 2, wherein the sleeve pressing plate is threadedly connected with a welding stud at the bottom of the gas tank by a fixing nut passing through a fixing hole of the sleeve pressing plate.

9. The sealed PT room of the ring main unit as claimed in claim 3, wherein the aviation plug assembly comprises an aviation plug and an aviation plug, the aviation plug penetrates through a through hole of the aviation plug assembly and is connected with a secondary wire in the PT room, one end of the aviation plug is connected with the aviation plug through a thread in a locking manner, and the other end of the aviation plug is connected with a secondary wire of an element outside the PT room.

10. The sealed PT chamber of the ring main unit as claimed in claim 5, wherein a face of the panel facing the opening frame body has a sealing strip configuration corresponding to a position of the protruding edge.

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