CN215580089U - High tension cable buffer layer restoration effect simulation experiment device - Google Patents
High tension cable buffer layer restoration effect simulation experiment device Download PDFInfo
- Publication number
- CN215580089U CN215580089U CN202122746454.1U CN202122746454U CN215580089U CN 215580089 U CN215580089 U CN 215580089U CN 202122746454 U CN202122746454 U CN 202122746454U CN 215580089 U CN215580089 U CN 215580089U
- Authority
- CN
- China
- Prior art keywords
- cable
- main body
- buffer layer
- outer tube
- simulation experiment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000000694 effects Effects 0.000 title claims abstract description 20
- 238000004088 simulation Methods 0.000 title claims abstract description 16
- 230000008439 repair process Effects 0.000 claims abstract description 4
- 239000012780 transparent material Substances 0.000 claims abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
- 239000000741 silica gel Substances 0.000 claims description 13
- 229910002027 silica gel Inorganic materials 0.000 claims description 13
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 12
- 238000002347 injection Methods 0.000 abstract description 12
- 239000007924 injection Substances 0.000 abstract description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 abstract description 8
- 238000009792 diffusion process Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 7
- 230000000740 bleeding effect Effects 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 3
- 238000002474 experimental method Methods 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 3
- 230000004382 visual function Effects 0.000 abstract description 2
- 239000002390 adhesive tape Substances 0.000 description 7
- 238000004804 winding Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 238000002679 ablation Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012800 visualization Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
Images
Landscapes
- Electric Cable Installation (AREA)
Abstract
The utility model relates to a high-voltage cable buffer layer repairing effect simulation experiment device which is technically characterized in that: the cable comprises a cable main body outer pipe, a cable main body inner pipe, a thread equivalent structure and an end cover; the cable body outer tube is made by transparent material, installs the air inlet connector who is used for connecting the force pump and connects the joint of bleeding of aspiration pump on cable body outer tube outer wall, and air inlet connector and the joint inner of bleeding are linked together with cable body outer tube is inside, and cable body inner tube and screw thread equivalent structure coaxial arrangement are sealed fixedly in cable body outer tube and through the end cover. According to the utility model, the outer pipe of the cable main body is designed into a transparent structure, and the equivalent thread structure of the inner pipe is designed, so that the visual function of the graphite powder diffusion process in the repair injection process can be realized, and the diffusion distance and the distribution effect of the graphite powder between the cable aluminum sheath and the buffer layer under different physical parameters such as particle size, injection pressure and the like are explored through an equivalent experiment, so that the engineering field injection process is guided.
Description
Technical Field
The utility model belongs to the technical field of high-voltage cables, and particularly relates to a high-voltage cable buffer layer repairing effect simulation experiment device.
Background
In an urban power supply system, safe, reliable and reasonable operation of an important high-voltage line is important for ensuring safe production of a power grid. The 110kV and 220kV high-voltage cables are important main lines of an urban power transmission network, the safety and reliability of the cables are always important work of power production and operation units, once the lines break down, power supply interruption is caused to cause heavy economic loss, and social public order disorder is caused to seriously affect the urban safety and stability.
At present, the electrical performance defect of a buffer layer commonly exists in a high-voltage cable line in a city, and the buffer layer can generate phenomena of discharging, ablation and the like under a complex operation environment to cause insulation shielding damage, and can develop into breakdown faults when the insulation shielding damage is serious. In order to eliminate the hidden danger of the storage defect of the cable buffer layer during transportation, researchers put forward a mode based on graphite powder injection to improve the contact effect between the cable buffer layer and the aluminum sheath and improve the conductivity between the cable buffer layer and the aluminum sheath so as to avoid the occurrence of ablation faults of the cable buffer layer.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art, and provides a simulation experiment device for the repairing effect of a high-voltage cable buffer layer, which can realize the visualization of the graphite powder diffusion process in the repairing process of the high-voltage cable buffer layer injected with graphite powder.
The utility model solves the technical problems in the prior art by adopting the following technical scheme:
a simulation experiment device for repairing effect of a buffer layer of a high-voltage cable comprises an outer tube of a cable main body, an inner tube of the cable main body, a thread equivalent structure and an end cover; the cable body outer tube is made of transparent materials, an air inlet connector used for being connected with a pressure pump and an air exhaust connector used for being connected with an air exhaust pump are installed on the outer wall of the cable body outer tube, the inner ends of the air inlet connector and the air exhaust connector are communicated with the interior of the cable body outer tube, and the cable body inner tube and the thread equivalent structure are coaxially installed in the cable body outer tube and sealed and fixed through an end cover.
And, cable body inner tube and screw thread equivalent structure include cable body inner tube and stereoplasm silica gel adhesive tape, on the even winding cable body inner tube surface of stereoplasm silica gel adhesive tape with the spiral mode, wrap up the cloth is woven to the one deck fibre outside the stereoplasm silica gel adhesive tape.
Moreover, the section of the hard silica gel rubber strip is in a half-sine shape.
Moreover, the cable main body outer tube is made of a high-light-transmission acrylic material.
And, the cable main part outer tube both ends are equipped with the flange respectively, and this flange is used for connecting the end cover, perhaps is used for connecting other cable main part outer tubes.
And the air inlet joint and the air exhaust joint are respectively arranged on the outer pipe of the cable body and are positioned at the non-fit clearance of the cable body outer pipe, the cable body inner pipe and the thread equivalent structure.
And the air inlet joint and the air exhaust joint are both pneumatic quick joints.
And the center of the inner side of the end cover is provided with an end cover inner pipe circular clamping groove used for embedding the end part of the cable main body inner pipe and the thread equivalent structure.
The utility model has the advantages and positive effects that:
aiming at the problems that the existing method for repairing the buffer layer of the cable based on the graphite powder lacks guidance basis for selecting injection parameters and the diffusion rule of the graphite powder between the buffer layer and the aluminum sheath is not clear, the outer pipe of the cable main body is designed into a transparent structure, and an inner pipe equivalent thread structure is designed, so that the visual function of the diffusion process of the graphite powder in the repair injection process can be realized, the diffusion distance and the distribution effect of the graphite powder between the cable aluminum sheath and the buffer layer under different physical parameters such as particle size, injection pressure and the like are researched through an equivalent experiment, and the engineering field injection process is guided so as to improve the repair effect.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of an equivalent structure of the inner tube and the thread of the cable main body according to the present invention;
FIG. 3 is a schematic view of the end cap construction of the present invention;
in the figure, 1-end cover, 2-cable body inner tube and thread equivalent structure, 3-air inlet joint, 4-cable body outer tube, 5-air extraction joint, 6-flange, 7-cable body inner tube, 8-hard silica gel rubber strip, and 9-end cover inner tube circular clamping groove.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings.
A high-voltage cable buffer layer repairing effect simulation experiment device is shown in figures 1 to 3 and comprises a cable main body outer tube 4, a cable main body inner tube, a thread equivalent structure 2 and an end cover 1. The cable comprises a cable body outer tube 4 and is characterized in that an air inlet connector 3 and an air exhaust connector 5 are installed on the outer wall of the cable body outer tube 4, the air inlet connector 3 and the air exhaust connector 5 are communicated with the interior of the cable body outer tube 4, the air inlet connector 3 and the air exhaust connector 5 are respectively connected with a pressure pump and an air exhaust pump through gas pipelines, and the cable body inner tube and a thread equivalent structure 2 are coaxially installed in the cable body outer tube 4 and are sealed and fixed through end covers 1 at two ends.
The cable body outer tube 4 is made of high-light-transmission acrylic materials, is coaxially installed with the cable body inner tube and the thread equivalent structure 2, and is provided with flanges 6 at two ends of the cable body outer tube 4 respectively and is installed with the end cover 1, so that the sealing function of the cable body outer tube 4 is realized. In order to meet the simulation experiment function of cables with different lengths, a plurality of cable main body outer pipes 4 can be connected together through flanges 6 at the end parts, and equivalent tests of the cables with different lengths are realized.
Air inlet joint 3 and the joint 5 of bleeding on the outer wall of cable main body outer tube 4 all adopt pneumatic quick-operation joint, install on cable main body outer tube 4 through threaded connection, and M10 trachea is connected and is connected with force pump and aspiration pump respectively to two pneumatic quick-operation joint other ends. In this embodiment, the length of the outer tube of the cable body is 1.2m, the air inlet joint 3 and the air exhaust joint 5 are respectively 12.5cm away from the end of the outer tube and are located at the non-joint gap of the outer tube 4 of the cable body, the inner tube of the cable body and the thread equivalent structure 2, so as to form a spiral advancing gas loop among the outer tube 4 of the cable body, the inner tube of the cable body and the thread equivalent structure 2, and a unidirectional gas flow is formed in the outer tube 4 of the cable body by combining the pressure injection and vacuum extraction functions, thereby completing the injection process of graphite.
Cable main part inner tube and screw thread equivalent structure 2 include cable main part inner tube 7 and the hard silica gel adhesive tape 8 of winding at 7 outer walls in cable main part inner tube, 8 cross-sections of hard silica gel adhesive tape are half sine shape, and the ripple width is 4cm, highly is 4.5 cm. For simulating true type aluminum sheath spiral ripple shape that advances, with the even winding of the 5 outer walls of inner tube of stereoplasm silica gel adhesive tape with the spiral mode on, the winding intercept is 5cm, 8 winding back of stereoplasm silica gel adhesive tape wrap up the one deck fibre in the ripple outside and weave the cloth to coaxial arrangement fixes in cable main part outer tube 4 and through end cover 1, with this equivalence cable buffer layer to aluminum sheath structure.
An end cover inner tube circular clamping groove 9 is formed in the center of the end cover 1, and two ends of the cable main body inner tube 7 are respectively embedded into the end cover inner tube circular clamping grooves 9, so that the cable main body inner tube 7 is coaxially fixed in the cable main body outer tube 4.
The cable main body outer tube 4 is made of high-light-transmission acrylic materials, gas flow is formed in the cable main body outer tube 4 under the action of a pressure pump and an air pump, and the diffusion distance and the distribution effect of graphite powder between a cable aluminum sheath and a buffer layer under different physical parameters such as particle size, injection pressure and the like are researched through an equivalent experiment, so that the visualization function of repairing the diffusion process of the graphite powder in the injection process is realized.
It should be emphasized that the embodiments described herein are illustrative rather than restrictive, and thus the present invention is not limited to the embodiments described in the detailed description, but also includes other embodiments that can be derived from the technical solutions of the present invention by those skilled in the art.
Claims (8)
1. The utility model provides a high tension cable buffer layer repair effect simulation experiment device which characterized in that: the cable comprises a cable main body outer pipe, a cable main body inner pipe, a thread equivalent structure and an end cover; the cable body outer tube is made of transparent materials, an air inlet connector used for being connected with a pressure pump and an air exhaust connector used for being connected with an air exhaust pump are installed on the outer wall of the cable body outer tube, the inner ends of the air inlet connector and the air exhaust connector are communicated with the interior of the cable body outer tube, and the cable body inner tube and the thread equivalent structure are coaxially installed in the cable body outer tube and sealed and fixed through an end cover.
2. The high-voltage cable buffer layer repairing effect simulation experiment device according to claim 1, wherein: the cable main body inner tube and the thread equivalent structure comprise a cable main body inner tube and a hard silica gel rubber strip, wherein the hard silica gel rubber strip is uniformly wound on the surface of the cable main body inner tube in a spiral mode, and a layer of fiber woven cloth is wrapped outside the hard silica gel rubber strip.
3. The high-voltage cable buffer layer repairing effect simulation experiment device according to claim 2, wherein: the section of the hard silica gel strip is in a half-sine shape.
4. The high voltage cable buffer layer repairing effect simulation experiment device according to any one of claims 1 to 3, wherein: the cable main body outer tube is made of high-light-transmission acrylic materials.
5. The high voltage cable buffer layer repairing effect simulation experiment device according to any one of claims 1 to 3, wherein: flanges are respectively arranged at two ends of the outer pipe of the cable main body and are used for connecting end covers or connecting other outer pipes of the cable main body.
6. The high voltage cable buffer layer repairing effect simulation experiment device according to any one of claims 1 to 3, wherein: and the air inlet joint and the air exhaust joint are respectively arranged on the outer pipe of the cable main body and are positioned at non-fit gaps of the cable main body outer pipe, the cable main body inner pipe and the thread equivalent structure.
7. The high voltage cable buffer layer repairing effect simulation experiment device according to any one of claims 1 to 3, wherein: and the air inlet joint and the air exhaust joint both adopt pneumatic quick joints.
8. The high voltage cable buffer layer repairing effect simulation experiment device according to any one of claims 1 to 3, wherein: and the center of the inner side of the end cover is provided with an end cover inner pipe circular clamping groove used for embedding the end part of the cable main body inner pipe and the thread equivalent structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122746454.1U CN215580089U (en) | 2021-11-11 | 2021-11-11 | High tension cable buffer layer restoration effect simulation experiment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122746454.1U CN215580089U (en) | 2021-11-11 | 2021-11-11 | High tension cable buffer layer restoration effect simulation experiment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215580089U true CN215580089U (en) | 2022-01-18 |
Family
ID=79853711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122746454.1U Active CN215580089U (en) | 2021-11-11 | 2021-11-11 | High tension cable buffer layer restoration effect simulation experiment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215580089U (en) |
-
2021
- 2021-11-11 CN CN202122746454.1U patent/CN215580089U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109935981B (en) | 35 KV-220 kV pouring type cable body welded joint and manufacturing method thereof | |
| CN112864968B (en) | High-pressure crosslinked polyethylene cable buffer layer repairing device and repairing method thereof | |
| CN105576596A (en) | Novel-cable intermediate-joint explosion-proof apparatus | |
| CN215580089U (en) | High tension cable buffer layer restoration effect simulation experiment device | |
| CN113507087B (en) | Corrosion-resistant anti-aging MPP electric power pipe with self-repairing function | |
| CN112165019B (en) | Connector and repair device for bad electrical contact inside high-voltage cable | |
| CN112202012B (en) | Connector and repair device for bad electrical contact inside high-voltage cable | |
| CN203895945U (en) | Cable middle connector protection box | |
| CN202076722U (en) | Cross-linked polyethylene cable insulation repair liquid injection adapter | |
| CN211455332U (en) | Ultrahigh-voltage high-carrying-capacity cable cluster system | |
| Chen et al. | Analysis and Countermeasure of 110KV Cable Joint Defects | |
| CN105811280B (en) | A kind of GIS device gas leaks powered pressurized leaking stoppage method | |
| CN110690001A (en) | Ultrahigh-voltage high-carrying-capacity cable cluster system | |
| CN206250692U (en) | A kind of processing unit of high-tension cable termination water inlet | |
| CN112701630B (en) | XLPE cable buffer layer repairing device and method based on graphite powder injection | |
| CN206649940U (en) | A kind of coaxial cable provided with waterstop | |
| CN203481770U (en) | Quick cable joint | |
| CN208889354U (en) | A kind of inorganic compounding insulated cable | |
| CN111186197A (en) | High-strength plastic-steel composite cable protection pipe | |
| CN207489550U (en) | A kind of anti-interference crosslinked polyetylene insulated medium-pressure power cable of tension | |
| CN113389970A (en) | Variable-diameter low-temperature pipeline flange cladding device and method | |
| CN205303028U (en) | Compound crosslinked power cable of optic fibre | |
| CN206322508U (en) | A kind of coaxial cable with damp-proof layer | |
| CN215111303U (en) | Variable-diameter low-temperature pipeline flange cladding device | |
| CN219659336U (en) | Power transmission line pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |