CN116937482A - A cable intermediate head structure - Google Patents

Abstract

The invention discloses a cable intermediate head structure, which includes: a cable intermediate head body; a collection cabin assembly installed inside the cable intermediate head body for collecting humidity, temperature and partial discharge gas environment data signals inside the cable. The collection cabin assembly is provided with a light source; an optical fiber used to transmit the light emitted by the light source; and a detection connector used to connect the detection equipment, wherein: one end of the optical fiber is connected to the collection cabin assembly, and the other end opposite to the optical fiber is installed The outside of the cable intermediate head body is connected to the detection connector. The light emitted from the collection cabin assembly is received by the detection equipment after passing through the optical fiber and the detection connector. The humidity, temperature and partial discharge gas inside the cable collected by the collection cabin assembly are signal is detected. Implementing the cable intermediate head structure of the present invention can collect environmental data signals inside the cable intermediate head, providing a basis for analysis of internal faults of the cable intermediate head; the structure is streamlined and the cost is easy to control.

Description

A kind of cable intermediate head structure

Technical field

The present invention relates to the technical field of cable intermediate heads, and in particular to a cable intermediate head structure.

Background technique

With the development of cities, power cables have been widely used in distribution lines. Due to the lack of necessary detection means, existing power cables frequently fail at the cable intermediate ends, which directly affects the stability and safe operation of the lines.

The existing technology lacks a cable intermediate head structure that can detect and feedback whether there is a fault in the cable intermediate head.

Contents of the invention

The technical problem to be solved by the present invention is to provide a cable intermediate head structure that can collect environmental data signals inside the cable intermediate head and provide a basis for analysis of internal faults of the cable intermediate head; the structure is streamlined and the cost is easy to control.

In order to solve the above technical problems, the present invention provides a cable intermediate head structure, which includes: a cable intermediate head body; and a device installed inside the cable intermediate head body to monitor the humidity, temperature and partial discharge gas environment data signals inside the cable. The collected collection cabin assembly is equipped with a light source; an optical fiber used to transmit the light emitted by the light source; and a detection connector used to connect the detection equipment, wherein: one end of the optical fiber is connected to the collection cabin assembly, and the optical fiber is opposite The other end is installed on the outside of the cable intermediate head body and connected to the detection connector. The light emitted from the collection cabin assembly is received by the detection equipment after passing through the optical fiber and the detection connector. The humidity inside the cable collected by the collection cabin assembly is , temperature and partial discharge gas signals are detected.

Among them, the collection cabin assembly includes: a collection cylinder used to collect the humidity, temperature and partial discharge gas inside the cable, an adjustment cylinder sleeved at the opposite ends of the collection cylinder, and an irradiation head installed in the adjustment cylinder, wherein: change Adjust the position of the barrel on the collection barrel to adjust the length of the collection chamber assembly.

Wherein, the light source is an irradiation head installed in the adjustment barrel.

Among them, the light emitted by the irradiation head on one side of the adjustment barrel is reflected on the optical fiber connected to the other side of the adjustment barrel.

The collecting tube is provided with a plurality of first assembly holes, and the adjusting tube is provided with second assembling holes. Screws pass through the second assembling holes and the first assembling holes to fasten the adjusting tube and the collecting tube.

Wherein, the plurality of first assembly holes are a plurality of equidistantly arranged positioning holes, and the second assembly holes are screw holes.

Among them, the collection tube is provided with a plurality of evenly arranged through holes to connect the inside and outside of the collection tube.

Among them, there are two optical fibers, and one is connected to the adjusting cylinders at the opposite ends of the collection cylinder.

Among them, the structure of the collection cabin assembly is set to be symmetrical.

Among them, the collection cabin components, optical fibers and detection connectors are assembled into multiple groups.

Implementing the cable intermediate head structure of the present invention has the following beneficial effects: the cable intermediate head structure includes: a cable intermediate head body; and a device installed inside the cable intermediate head body to monitor the humidity, temperature and partial discharge gas environment data inside the cable. A collection cabin component for collecting signals. The collection cabin component is equipped with a light source; an optical fiber used to transmit the light emitted by the light source; and a detection connector used to connect the detection equipment, wherein: one end of the optical fiber is connected to the collection cabin component, The opposite end of the optical fiber is installed on the outside of the cable intermediate head body and connected to the detection connector. The light emitted from the collection cabin assembly is received by the detection equipment after passing through the optical fiber and the detection connector, and the inside of the cable collected by the collection cabin assembly is It detects humidity, temperature and partial discharge gas signals, and can collect environmental data signals inside the cable intermediate head to provide a basis for the analysis of internal faults in the cable intermediate head. It has a streamlined structure and is easy to control costs.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic diagram of the overall assembly structure of a cable intermediate head according to an embodiment of the present invention.

Figure 2 is a schematic diagram of the connection structure of the collection cabin assembly, optical fiber and detection connector of the cable intermediate head according to the embodiment of the present invention.

Figure 3 is a schematic diagram of the overall structure of the collection compartment assembly of the cable intermediate head according to the embodiment of the present invention.

Figure 4 is a schematic diagram of the assembly position of the irradiation head of the collection cabin assembly of the cable intermediate head according to the embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

As shown in Figures 1 to 4, it is the first embodiment of the cable intermediate head structure of the present invention.

The cable intermediate head structure in this embodiment includes: a cable intermediate head body 1; a collection cabin assembly installed inside the cable intermediate head body 1 for collecting humidity, temperature and partial discharge gas environment data signals inside the cable. 2. The collection cabin assembly 2 is provided with a light source 21; an optical fiber 3 used to transmit the light emitted by the light source; and a detection connector 4 used to connect the detection equipment, wherein: one end of the optical fiber 3 is connected to the collection cabin assembly 2, The opposite end of the optical fiber 3 is installed on the outside of the cable intermediate head body 1 and is connected to the detection connector 4. The light emitted from the collection cabin assembly 2 is received by the detection equipment after passing through the optical fiber 3 and the detection connector 4, and the collection The humidity, temperature and partial discharge gas signals inside the cable collected by the cabin component 2 are detected.

In actual implementation, since the failure of the cable intermediate head is not sudden, there is a process from the occurrence of local to fault breakdown, such as running for one month or several months. When partial discharge occurs, the inside of the intermediate head usually generates heat and generates gas, and it is common to get damp. By arranging the collection cabin component 2, the optical fiber 3 and the detection connector 4 for light emission and signal docking that are assembled in sequence in this application, the signal is transmitted to the external detection equipment using the principle of light, and the gas is further analyzed, and then the The actual measured value is used as the basis for whether there is a fault in the cable intermediate head.

During implementation, the collection cabin assembly 2, the optical fibers 3 connected to the opposite sides of the collection cabin assembly 2 (one is connected to each of the adjustment tubes 23 at the opposite ends of the collection tube 22) and the detection connector 4 adapted to the optical fiber 3, After the whole assembly, there is one set of detection components. In this embodiment, the detection components are divided into two groups. Of course, it can also be set to multiple groups, and each group of detection components has the same structure. The function of this setting is: different data can be obtained for comparison, and the data can be separated according to the comparison method, thereby improving the accuracy of data analysis.

Among them: the collection cabin component 2 is installed inside the cable intermediate head, but does not affect the internal structure of the intermediate head. It can collect and detect the humidity inside the cable and the temperature and gas during partial discharge of heat. The function of optical fiber 3 is to receive and collect data signals. It has the advantages of not being easy to age and having a long service life.

Further, the collection cabin assembly 2 includes: a collection cylinder 22 used to collect the humidity, temperature and partial discharge gas inside the cable, and an adjustment cylinder 23 sleeved on the opposite ends of the collection cylinder 22, wherein: changing the adjustment cylinder 23 in the collection cylinder 22 on the position so that the length of the collection chamber assembly 2 can be adjusted. In this embodiment, the light source is an irradiation head installed in the adjustment barrel 23 .

Furthermore, the length adjustment of the collection chamber assembly 2 is implemented through the following structure. The collection cylinder 22 is provided with a plurality of first assembly holes, the adjustment cylinder 23 is provided with a second assembly hole, and the screw S passes through the second assembly hole. and the first assembly hole to fasten the adjusting cylinder 23 and the collecting cylinder 22.

In specific implementation, the plurality of first assembly holes are a plurality of equidistantly arranged positioning holes, and the second assembly holes are screw holes. In this way, by correspondingly connecting the second assembly holes to the first assembly holes at different positions, the position of the adjustment barrel 23 being sleeved on the collection barrel 22 can be adjusted, thereby adjusting the overall length.

The purpose of setting the length of the collection chamber assembly 2 to be adjustable is to allow the irradiation heads to have light dockings at different distances between each other, and then perform the test.

Preferably, the structure of the collection cabin assembly 2 is set to be symmetrical, making it easier to arrange the position of the irradiation head.

During implementation, the light emitted by the irradiation head on the adjustment barrel 23 on one side is reflected on the optical fiber 3 connected to the adjustment barrel on the other side. The reflected signal is transmitted to the detection equipment through the detection joint 4, and data analysis is performed thereby.

Furthermore, the collection tube 22 is provided with a plurality of uniformly arranged through holes 220 , and the through holes 220 can connect the inside and outside of the collection tube 22 . In this way, it is easier to collect the humidity, temperature and gas generated by partial discharge inside the cable head, making it less likely to affect the stability of signal acquisition.

During the specific implementation of the cable intermediate head structure in this embodiment, two sets of detection assemblies are installed inside the cable intermediate joint. Each detection assembly includes a collection cabin component 2 and two components connected to the opposite sides of the collection cabin component 2. The optical fiber 3 (one is connected to the adjusting barrel 23 at the opposite ends of the collection tube 22) and the detection joint 4 adapted to the optical fiber 3 can collect the defect information inside the cable intermediate joint, thereby realizing the detection of the running cable. Regular testing function. During implementation, first connect the detection connector 4 to the detection equipment, and then start the detection equipment for detection.

Implementing the cable intermediate head structure of the present invention has the following beneficial effects:

First, the structure of the cable intermediate head includes: the cable intermediate head body; a collection cabin assembly installed inside the cable intermediate head body to collect the humidity, temperature and partial discharge gas environment data signals inside the cable. It is provided with a light source; an optical fiber used to transmit the light emitted by the light source; and a detection connector used to connect the detection equipment, wherein: one end of the optical fiber is connected to the collection cabin assembly, and the other end opposite to the optical fiber is installed in the middle of the cable. The outside of the body is connected to the detection connector, in which: the light emitted from the collection cabin assembly is received by the detection equipment after passing through the optical fiber and the detection connector, and the humidity, temperature and partial discharge gas signals inside the cable collected by the collection cabin assembly are detected. It can collect environmental data signals inside the cable intermediate head to provide a basis for analysis of internal faults in the cable intermediate head.

Second, the detection component can be directly installed inside the cable intermediate head, which does not affect the production time. The structure is streamlined and the cost is easy to control.

Claims (10)

1. A cable intermediate head structure, comprising:

a cable intermediate head body;

the collecting cabin assembly is arranged in the cable middle head body and used for collecting humidity, temperature and partial gas environment data signals in the cable, and a light source is arranged in the collecting cabin assembly;

the optical fiber is used for transmitting the light rays emitted by the light source; and

a detection joint for connecting a detection device, wherein: one end of the optical fiber is connected with the collection cabin assembly, the other end of the optical fiber is arranged outside the cable intermediate head body and is connected with the detection joint, wherein:

light emitted by the collection cabin component is received by detection equipment after passing through the optical fiber and the detection joint, and humidity, temperature and partial gas signals inside the cable collected by the collection cabin component are detected.

2. The cable intermediate head structure of claim 1, wherein the collection chamber assembly comprises: the utility model provides a humidity, temperature and partial discharge gas's inside collection section of thick bamboo and cup joint in the inside cable of collection section of thick bamboo is in the section of thick bamboo regulation section of thick bamboo of the relative both ends, wherein:

changing the position of the adjustment cylinder on the collection cylinder to adjust the length of the collection chamber assembly.

3. The cable intermediate head structure of claim 2, wherein the light source is an irradiation optical head mounted in the adjustment cylinder.

4. A cable intermediate head structure according to claim 3, wherein the light emitted by the irradiating optical head on one side of the adjustment barrel is reflected on an optical fiber connected to the other side of the adjustment barrel.

5. The cable intermediate head structure according to claim 2, wherein the collecting cylinder is provided with a plurality of first assembly holes, the adjusting cylinder is provided with a second assembly hole, and a screw passes through the second assembly hole and the first assembly hole to fasten the adjusting cylinder and the collecting cylinder.

6. The cable intermediate head structure of claim 5, wherein the plurality of first mounting holes are a plurality of equally spaced locating holes and the second mounting hole is a threaded hole.

7. The cable intermediate head structure according to claim 2, wherein the collection tube is provided with a plurality of through holes which are uniformly arranged so as to allow the inside and outside of the collection tube to communicate.

8. The cable intermediate head structure of claim 2, wherein the number of optical fibers is two, and one is connected to each of the adjusting cylinders at opposite ends of the collecting cylinder.

9. The cable intermediate head structure of claim 1, wherein the structure of the collection chamber assembly is symmetrical.

10. The cable intermediate head structure of claim 1, wherein the collection chamber assembly, the optical fibers and the test connector are integrally assembled in groups.