CN217035512U - Insulating cylinder - Google Patents
Insulating cylinder Download PDFInfo
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- CN217035512U CN217035512U CN202123286259.1U CN202123286259U CN217035512U CN 217035512 U CN217035512 U CN 217035512U CN 202123286259 U CN202123286259 U CN 202123286259U CN 217035512 U CN217035512 U CN 217035512U
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- conductor
- cavity
- insulating body
- shielding net
- arc extinguish
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Abstract
The utility model relates to the technical field of isolation insulating cylinders, and discloses an insulating cylinder which comprises an insulating body, wherein the insulating body is internally provided with: the wire inlet conductor, the vacuum arc extinguish chamber and the wire outlet conductor are arranged inside the insulating body from top to bottom, the vacuum arc extinguish chamber is connected with the wire outlet conductor, the wire inlet conductor and the wire outlet conductor are communicated with the outer side of the insulating body, and a cavity for placing objects is formed in the insulating body. The utility model adopts the shielding net structure at the two ends of the incoming line conductor and the outgoing line conductor, and is used for indicating the electrified state of the switch, changing the extremely uneven electric field into the slightly uneven electric field and reducing the electric field intensity of the part.
Description
Technical Field
The utility model relates to the technical field of isolation insulating cylinders, in particular to an insulating cylinder.
Background
In a medium-voltage distribution network, a ring network switch device is commonly used by SF6 insulating medium, SF6 gas is one of six greenhouse effect gases, and has been widely paid attention by people in all circles of society, SF6 is used as the insulating medium, and due to the fact that the strength of the medium is high, the high-voltage ground distance can be reduced, if a box body leaks, the phenomena of interphase and ground breakdown are easy to occur, meanwhile, the connection requirement of a conductive loop in the box body is high, the quality requirement of SF6 on the box body is also high, the use under severe environment conditions is not facilitated, and the strategy of national sustainable development is not met.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems of box body leakage, ground breakdown and high use condition caused by SF6 in the prior art, the utility model provides an insulation cylinder.
The technical scheme of the utility model is as follows:
an insulating cylinder, includes insulator, insulator inside is provided with: the wire inlet conductor, the vacuum arc extinguish chamber and the wire outlet conductor are arranged in the insulation body from top to bottom, the vacuum arc extinguish chamber is connected with the wire outlet conductor, the wire inlet conductor and the wire outlet conductor are communicated with the outer side of the insulation body, and a cavity for placing objects is formed in the insulation body.
Further, the inlet wire conductor sets up from top to bottom inside the insulator, the inlet wire conductor is connected with lead screw, lead screw with the cavity links to each other, lead screw one side is provided with ground contact.
Furthermore, the inlet wire conductor is close to one end of the guide screw rod is provided with an inlet wire shielding net, the guide screw rod is connected with the cavity and is also provided with the inlet wire shielding net on one side connected with the insulating body, and the inlet wire conductor is close to the inlet wire shielding net arranged by the guide screw rod and is connected with a positioning nut of the shielding net.
Further, the vacuum arc-extinguishing chamber is arranged below the guide screw, and arc-extinguishing chamber static end shielding covers are arranged at one end and two sides of the cavity far away from the vacuum arc-extinguishing chamber.
Further, the cavity is in the internal gamma shape setting that is of insulator, vacuum interrupter sets up the interior recess department at the cavity, be provided with the explosion chamber on the insulator of the upper and lower both sides of cavity and move the end shield cover, the cavity with be provided with the explosion chamber on the insulator between the vacuum interrupter and move the end shield cover, the cavity with the explosion chamber that sets up between the vacuum interrupter moves the end shield cover and is connected with explosion chamber and moves end shield cover set nut.
Furthermore, the outgoing conductor is arranged inside the insulating body from bottom to top, an outgoing shielding net is arranged at the position, close to the outlet, of the outgoing conductor, the outgoing shielding net is connected with a positioning nut, and the positioning nut is arranged at the bottom of the insulating body.
Furthermore, one side of the vacuum arc extinguish chamber, which is far away from the cavity, is connected with a supporting reinforcing rib, and the vacuum arc extinguish chamber is connected with the insulation body through the supporting reinforcing rib.
Further, the insulating body is made of epoxy resin insulation.
The beneficial effects of the utility model at least comprise:
shielding net structures are adopted at two ends of the incoming and outgoing conductors for indicating the electrified state of the switch, changing the extremely-uneven electric field into a slightly-uneven electric field and reducing the electric field intensity of the part;
the high-voltage shielding cover is arranged at the movable end of the vacuum arc extinguish chamber, the arc extinguish chamber and the isolation end of the wire inlet conductor end so as to increase the curvature of the motor and reduce the electric field intensity, and meanwhile, the tip of the conductive loop is covered in the shielding net so as to avoid the tip discharging;
the surface is grounded after being coated with the metal layer, so that the outer surface of the whole switch circuit is at the ground potential, the circuit can resist severe environments such as dirt, humidity and the like, small phase intervals are kept, the miniaturization requirement is met, and the probability of surface interphase faults is increased.
Drawings
Fig. 1 is a schematic view of a half section of an insulation cylinder of the present invention.
FIG. 2 is a schematic side view of the present invention.
Wherein:
1-an insulating body;
2-a line-incoming conductor;
3-a vacuum arc-extinguishing chamber;
4-a line-out conductor;
5-a cavity;
6-a lead screw;
7-a ground contact;
8-incoming line shielding net;
9-incoming line shielding net positioning nut;
10-a static end shield cover of an arc extinguish chamber;
11-arc extinguish chamber moving end shield;
12-positioning nut of shield cover at movable end of arc extinguish chamber;
13-outgoing line shielding net;
14-a positioning nut;
15-supporting reinforcing ribs;
16-a mounting face;
17-a groove;
18-mounting the nut.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
With reference to fig. 1-2, the utility model discloses an insulation cylinder, which comprises an insulation body 1, wherein: the wire inlet conductor 2, the vacuum arc-extinguishing chamber 3 and the wire outlet conductor 4 are arranged from top to bottom inside the insulation body 1, the vacuum arc-extinguishing chamber 3 is connected with the wire outlet conductor 4, the wire inlet conductor 2 and the wire outlet conductor 4 are communicated with the outer side of the insulation body 1, a cavity 5 for placing objects is formed in the insulation body 1, an installation surface 16 is arranged on the outer side of the cavity 5, a groove 17 is formed in the installation surface 16, and the installation surface 16 is fixed on the insulation body 1 by penetrating the groove 17 through an installation nut 18.
Furthermore, the wire inlet conductor 2 is arranged inside the insulation body 1 from top to bottom, the wire inlet conductor 2 is connected with a guide screw 6, the guide screw 6 is connected with the cavity 5, and one side of the guide screw 6 is provided with a grounding contact 7.
Further, the inlet wire conductor 2 is close to one of the guiding screw 6 is served and is provided with inlet wire shielding net 8, guiding screw 6 with the cavity 5 department of linking to each other and with be provided with inlet wire shielding net 8 on the one side that insulator 1 is connected equally, inlet wire conductor 2 is close to be connected with on the inlet wire shielding net 8 that guiding screw 6 set up and carry out shielding net set nut 9.
Further, vacuum interrupter 3 sets up lead screw 6's below, vacuum interrupter 3 keeps away from be provided with explosion chamber quiet end shield cover 10 on the one end and the both sides of cavity 5.
Further, cavity 5 is in insulator 1 is the setting of all shape in, vacuum interrupter 3 sets up the interior recess at cavity 5, be provided with explosion chamber movable end shield cover 11 on the insulator 1 of the upper and lower both sides of cavity 5, cavity 5 with be provided with explosion chamber movable end shield cover 11 on the insulator 1 between the vacuum interrupter 3, cavity 5 with explosion chamber movable end shield cover 11 that sets up between the vacuum interrupter 3 is connected with explosion chamber movable end shield cover positioning nut 12.
Further, the conductor 4 that is qualified for next round of competitions sets up from supreme down inside insulator 1, the conductor 4 body that is qualified for next round of competitions is close to the exit and is provided with the shielding net 13 that is qualified for the next round of competitions, the shielding net 13 that is qualified for the next round of competitions is connected with set nut 14, set nut 14 sets up insulator 1's bottom, and conductor 4 that is qualified for the next round of competitions mouth is the M16 screw hole, and is the same with conductor inlet 2.
Furthermore, one side of the vacuum arc-extinguishing chamber 3, which is far away from the cavity, is connected with a supporting reinforcing rib 15, and is connected with the insulating body 1 through the supporting reinforcing rib 15.
Further, the insulating body 1 is made of epoxy resin insulation.
The utility model carries out surface metallization treatment on the exposed part of the epoxy resin except the cable-refining-stage wire inlet and outlet conical heads, and the epoxy resin is automatically subjected to pressure gel molding.
The shielding net structure is adopted at the two ends of the incoming line conductor and the outgoing line conductor, one is used for indicating the electrified state of the switch, when the high-voltage conductor is electrified, the induction capacitor generates a low-voltage electric signal, the prompting and warning effects are achieved by connecting the high-voltage electrified display, and the switch equipment does not need to be specially configured with a high-voltage sensor; secondly, the extremely uneven electric field is changed into a slightly uneven electric field through the shielding net, the electric field intensity of the part is reduced, the sleeve can safely penetrate through the metal plate due to the shielding effect, and meanwhile, the grounding shielding net and the surface metal layer are overlapped, so that partial discharge is reduced.
A high-voltage shielding cover is arranged at the movable end of the vacuum arc extinguish chamber, the arc extinguish chamber and the isolating end of the wire inlet conductor end so as to increase the curvature of the motor and reduce the electric field intensity, and meanwhile, the tip of the conductive loop is wrapped in the shielding net so as to avoid tip discharge.
The shielding net adopts a non-magnetic stainless steel net, and the high-voltage shielding cover adopts semiconductive nylon. The conductive loop comprises an incoming line conductor, a vacuum arc-extinguishing chamber, an isolation grounding knife box, a mounting contact and an outgoing line conductor, which form a complete switch division and combination, the isolation and grounding loop, the incoming line conductor and an incoming line cable are connected or other switch cabinets are connected in parallel, the outgoing line conductor and the outgoing line cable are connected and are connected to a superior transformer substation and a user side, and the isolation grounding knife box and the mounting contact are mounted later to form a loop together with the utility model.
The insulation cylinder provided by the utility model is a direct-acting insulation cylinder, and is fixed on a special tool through a positioning nut during assembly, the opening of the insulation cylinder is upward, the distance between the openings is positioned, and a flexible connection, an insulation pull rod, a contact seat and an isolated ground grounding knife box are arranged in the insulation cylinder.
The direct action type insulating cylinder installation is fixed and is constituted by 6 nuts, and after the inside equipment is good, the lid mountain mounting panel fastens, tightly goes up operating device, wholly hangs into the cubical switchboard again in, simple to operate is simple. The automatic pressure gel forming process of epoxy resin is adopted, so that the integral mechanical performance is obviously improved, the dimensional accuracy of a product is improved through the accurate dimensional control of a die, the matching of a conductive circuit is favorably improved, the contact resistance is reduced, the interchangeability is improved, and in the whole scheme, the interval, namely the switch, is miniaturized, the interchangeability is good, the installation is convenient, and the reliability is high.
The mutual position degree of the conductors, the partial discharge capacity of the grounding shielding net and the partial discharge capacity of the metal shielding layer are controlled in production, the electrical aging of the insulator is reduced, and the service life of the product is greatly prolonged.
The bus sleeve has a rated voltage of 12kV and a current value of 630A/1250A, and meets the power supply requirements of ring networks in cities and factories.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. An insulating cylinder, includes insulator, its characterized in that: the insulating body is internally provided with: the lead-in conductor, the vacuum arc extinguish chamber and the lead-out conductor are arranged in the insulation body from top to bottom, the vacuum arc extinguish chamber is connected with the outgoing conductor, the incoming conductor and the outgoing conductor are communicated with the outer side of the insulating body, a cavity for placing articles is formed in the insulating body, the wire inlet conductor is arranged in the insulating body from top to bottom, the lead-in conductor is connected with a guide screw rod, the guide screw rod is connected with the cavity, one side of the guide screw rod is provided with a grounding contact, an incoming line shielding net is arranged at one end of the incoming line conductor close to the guide screw rod, the connecting part of the guide screw rod and the cavity and one side connected with the insulating body are also provided with the incoming line shielding net, and the incoming line conductor is close to the incoming line shielding net arranged by the guide screw rod, and a positioning nut of the shielding net is connected to the incoming line shielding net.
2. The insulating cylinder of claim 1, wherein: the vacuum arc extinguish chamber is arranged below the guide screw, and arc extinguish chamber static end shielding covers are arranged at one end and two sides of the vacuum arc extinguish chamber far away from the cavity.
3. The insulating cylinder of claim 1, wherein: the cavity is in the internal gamma shape setting that is of insulator, the vacuum interrupter sets up the interior recess department at the cavity, be provided with explosion chamber movable end shield cover on the insulator of the upper and lower both sides of cavity, the cavity with be provided with explosion chamber movable end shield cover on the insulator between the vacuum interrupter, the cavity with the explosion chamber movable end shield cover that sets up between the vacuum interrupter is connected with explosion chamber movable end shield cover positioning nut.
4. The insulating cylinder of claim 1, wherein: the outgoing conductor is arranged inside the insulating body from bottom to top, an outgoing shielding net is arranged at the position, close to the outlet, of the outgoing conductor, the outgoing shielding net is connected with a positioning nut, and the positioning nut is arranged at the bottom of the insulating body.
5. The insulating cylinder of claim 1, wherein: and one side of the vacuum arc extinguish chamber, which is far away from the cavity, is connected with a supporting reinforcing rib, and the vacuum arc extinguish chamber is connected with the insulation body through the supporting reinforcing rib.
6. The insulating cylinder of claim 1, wherein: the insulation body is made of epoxy resin insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123286259.1U CN217035512U (en) | 2021-12-24 | 2021-12-24 | Insulating cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123286259.1U CN217035512U (en) | 2021-12-24 | 2021-12-24 | Insulating cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217035512U true CN217035512U (en) | 2022-07-22 |
Family
ID=82442361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123286259.1U Active CN217035512U (en) | 2021-12-24 | 2021-12-24 | Insulating cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217035512U (en) |
-
2021
- 2021-12-24 CN CN202123286259.1U patent/CN217035512U/en active Active
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