CN207504549U - A kind of three core transition joint of novel cable shrinkage - Google Patents
A kind of three core transition joint of novel cable shrinkage Download PDFInfo
- Publication number
- CN207504549U CN207504549U CN201721601546.8U CN201721601546U CN207504549U CN 207504549 U CN207504549 U CN 207504549U CN 201721601546 U CN201721601546 U CN 201721601546U CN 207504549 U CN207504549 U CN 207504549U
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- Prior art keywords
- cable
- shrinkage
- signal processing
- core
- intermediate connection
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Abstract
A kind of three core transition joint of novel cable shrinkage, is related to cable accessory technical field, including ontology, shrinkage intermediate connection tube and signal processing apparatus, it is characterised in that：Ontology is cable cold-shrinking intermediate joint, three shrinkage intermediate connection tubes are equipped in ontology, insulation shield, stress cone, cable insulation, high-tension shielding pipe and conductor connection gold utensil are equipped in shrinkage intermediate connection tube, cable core between the conductor connection gold utensil and insulation shield is externally provided with cable insulation, and sensor and signal processing apparatus are equipped among the cable insulation and high-tension shielding pipe.The beneficial effects of the utility model are：The compact stabilization of integral joint, in use, limitation will not be used in the environment of rather harsh, and the timely early warning of energy, the possibility of burst accident is reduced, reduces economic loss, while substantially reduces the input of inspection manpower and materials；Install simple and fast, without getting angry, securely and reliably, service life is long.
Description
Technical field：
The utility model is related to cable accessory technical fields, and in particular to a kind of three core transition joint of novel cable shrinkage.
Background technology：
In network system, crosslinked polyethylene (XLPE) power cable is because of excellent insulation performance, good mechanical properties, installation
The advantages that easy to maintain and be used widely.Cable intermediate joint is as the important component connected between XLPE cable, fortune
Row is directly related to power grid security whether normal.Compared to cable body, cable connector is multi-layer solid composite dielectric structure, interior
There are a large amount of compound interfaces in portion, concentrate, generate since the defects of product quality or generation of mounting process problem be easy to cause electric field
Insulation weak-point.Statistical data shows：Cable accessory internal flaw induce failure account for more than the 70% of total accident, wherein 60% with
On be all transition joint failure, the weak link that cable intermediate joint has become in the main happening part of failure and cable system is cold
The transition joint of contracting prefabricated using Integral prefabricated type structure, reinforced insulation and shielded layer be just combined as in plant produced one it is whole
Product quality can be effectively ensured in body, improve operational reliability；Installation procedure is decreased simultaneously, in-site installation is made into band
The influence for the various unfavorable factors come is preferably minimized.Therefore, cold-contraction type preparation joint has reliability height, suitable for a variety of conductors
Section, insulation performance is good, installs the advantages that simple and convenient.
However, the conductor connection mode of cold shrink type joint is still needed to by taking over crimping, in aluminium hydraulic pressed connecting pipe and connector conductor shielding
Wrapped semi-conductive tape is needed between layer, to ensure to have good electrical contact between core and connector conductor shield.People at the scene
Work make when, due to aluminium hydraulic pressed connecting pipe crimp bad or semi-conductive tape it is wrapped not close when, easily lead to aluminium hydraulic pressed connecting pipe and connector inner shield
There are air gaps between layer.If the resistivity of semi-conductive tape or connector conductor shield is excessive at this time, can cause shielded layer current potential with
Cable conductor current potential differs, and potential difference is generated on air gap, causes shelf depreciation, failure is caused to generate when serious, easily causes
Fire is damaged to people's personal safety as well as the property safety.
Utility model content：
The purpose of this utility model is to solve problems of the prior art, is provided in a kind of three core of novel cable shrinkage
Between connector, using simple, insulation performance is reliable, has monitoring shelf depreciation and temperature function.
Technical problem to be solved in the utility model is realized using following technical solution：
A kind of three core transition joint of novel cable shrinkage, including ontology, shrinkage intermediate connection tube and signal processing apparatus, institute
The ontology stated is cable cold-shrinking intermediate joint, and three shrinkage intermediate connection tubes, the shrinkage intermediate connection tube are equipped in ontology
It is located at the docking of three-core cable conductor, shrinkage intermediate connection tube is connected to cable armouring, the copper screen by copper shield pipe
Cover pipe and cable armouring embedded by constant force spring and is fixed in ontology, be equipped in shrinkage intermediate connection tube insulation shield,
Stress cone, cable insulation, high-tension shielding pipe and conductor connection gold utensil, the insulation shield end are equipped with stress cone, institute
The stress cone stated is in the structure of the transition conical surface, and cable core docks in conductor connection gold utensil, outside the conductor connection gold utensil
Equipped with high-tension shielding pipe, the cable core between conductor connection gold utensil and insulation shield is externally provided with cable insulation, described
Sensor is equipped among cable insulation and high-tension shielding pipe, the sensor is connected to the second radio frequency by the first radio-frequency cable
Cable, second radio-frequency cable are connected to signal processing apparatus, the signal processing means processes temperature and electric field letter
Number information, shrinkage intermediate connection tube are externally provided with copper mesh, all components in copper mesh package shrinkage intermediate connection tube.
The copper shield pipe and cable armouring internal diameter matches with cable inner core and cable internal diameter.
The stress cone is located at shrinkage intermediate connection tube both ends, and stress cone strengthens margin design, and insulation performance is more
Reliably, it can effectively improve the distribution of conductor connection gold utensil surrounding electric field, reduce electric field strength, improve safety coefficient, increase and use
Service life.
The signal processing apparatus is equipped with position positioning and warning function, when sensor sensing goes out temperature or electric field strength
When being persistently higher than threshold value, signal processing apparatus sends out position and warning information by position positioning and warning function, reminds
Service personnel overhauls in advance, convenient for pinpointing the problems in time, avoids the generation of safety accident.
The signal processing apparatus is connected in parallel three shrinkage intermediate connection tubes by the second radio-frequency cable, when one of them
Temperature and electric field are more than that threshold value can send out position and warning information in shrinkage intermediate connection tube.
The signal processing apparatus is equipped with power-supply device, and electric energy is provided for signal processing and transmitting.
The beneficial effects of the utility model are：The compact stabilization of integral joint, in use, will not in the environment of rather harsh
Limitation, and the timely early warning of energy are used, the possibility of burst accident is reduced, reduces economic loss, while substantially reduce inspection
The input of manpower and materials；Install simple and fast, without getting angry, securely and reliably, service life is long.
Description of the drawings：
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the utility model cold-shrinking intermediate joint structure diagram；
Wherein：1- ontologies；2- shrinkage intermediate connection tubes；3- constant force springs；4- copper shield pipes；5- cable armourings；6- signals
Processing unit；The first radio-frequency cables of 61-；The second radio-frequency cables of 62-；63- sensors；7- copper mesh；8- insulation shields；9- should
Power is bored；10- cable insulations；11- high-tension shielding pipes；12- conductor connection gold utensils.
Specific embodiment：
The technological means of the utility model, character of innovation, achieving the goal is easy to understand with effect in order to make, and ties below
Conjunction is specifically illustrating, and the utility model is expanded on further, it is clear that described embodiment is only that the utility model part is implemented
Example, instead of all the embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making wound
All other embodiments obtained under the premise of the property made labour, shall fall within the protection scope of the present invention.
In the description of the utility model, it should be noted that term " centre ", " between " etc. instructions orientation or position
Relationship be based on orientation shown in the drawings or position relationship, be for only for ease of this practicality is described and simplify describe rather than
It indicates either to imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore
It is not intended that the limitation to the utility model.In addition, " first ", " second " etc. be only used for description purpose, and it is not intended that
Instruction implies relative importance.
In the description of the utility model, it is also necessary to explanation unless otherwise specific regulation and limits, term " setting ",
" installation ", " connection ", " connection " etc. should be interpreted broadly, and can be fixedly connected or be detachably connected or integrally
Connection can be mechanical connection or be electrically connected, and can be directly connected to or be connected by intermediary, can
To be the connection inside two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned
Concrete meaning of the term in the utility model.
Three core transition joint of a kind of novel cable shrinkage as depicted in figs. 1 and 2, including ontology 1, shrinkage intermediate connection tube
2 and signal processing apparatus 6, ontology 1 is cable cold-shrinking intermediate joint, sets that there are three shrinkage intermediate connection tube 2, shrinkages in ontology 1
Intermediate connection tube 2 is located at the docking of three-core cable conductor, and shrinkage intermediate connection tube 2 is connected to cable armour by copper shield pipe 4
5 are filled, copper shield pipe 4 and cable armouring 5 are fixed on by the way that constant force spring 3 is embedded in ontology 1, in copper shield pipe 4 and cable armouring 5
Diameter matches with cable inner core and cable internal diameter, and the shielding of cable insulation 10 8, stress cone 9, electricity are equipped in shrinkage intermediate connection tube 2
Cable insulation 10, high-tension shielding pipe 11 and conductor connection gold utensil 12, cable insulation 10 shield 8 ends and are equipped with stress cone 9, stress cone 9
In the structure of the transition conical surface, stress cone 9 is located at 2 both ends of shrinkage intermediate connection tube, and stress cone 9 strengthens margin design, insulation
More reliable performance can effectively improve the distribution of 12 surrounding electric field of conductor connection gold utensil, reduce electric field strength, improve safety coefficient,
Increasing service life, cable core docks in conductor connection gold utensil 12, and conductor connection gold utensil 12 is externally provided with high-tension shielding pipe 11,
Cable core between conductor connection gold utensil 12 and the shielding of cable insulation 10 8 is externally provided with cable insulation 10, cable insulation 10 and height
It presses and sensor 63 is equipped among shielded-plate tube 11, sensor 63 is connected to the second radio-frequency cable 62 by the first radio-frequency cable 61, the
Two radio-frequency cables 62 are connected to signal processing apparatus 6,6 treatment temperature of signal processing apparatus and electric field signal information, signal processing
Device 6 is equipped with position positioning and warning function, when sensor 63, which induces temperature or electric field strength, is persistently higher than threshold value, signal
Processing unit 6 sends out position and warning information by position positioning and warning function, service personnel is reminded to overhaul in advance, just
Pinpoint the problems in time, avoid the generation of safety accident, signal processing apparatus 6 by the second radio-frequency cable 62 be connected in parallel three it is cold
Contracting intermediate connection tube 2, when temperature in one of shrinkage intermediate connection tube 2 and electric field be more than threshold value can send out position and
Warning information, signal processing apparatus 6 are equipped with power-supply device, electric energy are provided for signal processing and transmitting, outside shrinkage intermediate connection tube 2
Equipped with copper mesh 7, copper mesh 7 wraps up all components in shrinkage intermediate connection tube 2.
The application method of the utility model：The plastic support item of three core transition joint of cable shrinkage is extracted, cable shrinkage
Three core transition joints rapidly shrink holding on cable, when in cable energization course of normal operation, sensor 63 induces cold
When temperature or electric field strength are persistently higher than threshold value in contracting intermediate connection tube 2, signal passes through the first radio-frequency cable 61 and the second radio frequency
62 input signal processing unit 6 of cable, signal processing apparatus 6 send out position and alarm by position positioning and warning function
Information reminds service personnel to overhaul in advance, convenient for pinpointing the problems in time, avoids the generation of safety accident.
The advantages of basic principle, main feature and the utility model of the utility model has been shown and described above, one's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principle of the utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
There are various changes and modifications, these changes and improvements will be fallen into claimed the scope of the utility model.The utility model
Claimed range, is defined by the appending claims and its equivalent thereof.
Claims (6)
1. a kind of three core transition joint of novel cable shrinkage, special including ontology, shrinkage intermediate connection tube and signal processing apparatus
Sign is：The ontology is cable cold-shrinking intermediate joint, three shrinkage intermediate connection tubes is equipped in ontology, in the shrinkage
Between connecting tube be located at the docking of three-core cable conductor, shrinkage intermediate connection tube is connected to cable armouring by copper shield pipe, institute
The copper shield pipe and cable armouring stated are embedded by constant force spring to be fixed in ontology, and it is exhausted that cable is equipped in shrinkage intermediate connection tube
Edge shielding, stress cone, cable insulation, high-tension shielding pipe and conductor connection gold utensil, the insulation shield end is equipped with should
Power is bored, and the stress cone is in the structure of the transition conical surface, and cable core docks in conductor connection gold utensil, conductor connection
Gold utensil is externally provided with high-tension shielding pipe, and the cable core between conductor connection gold utensil and insulation shield is externally provided with cable insulation,
It is equipped with sensor among the cable insulation and high-tension shielding pipe, the sensor is connected to the by the first radio-frequency cable
Two radio-frequency cables, second radio-frequency cable are connected to signal processing apparatus, the signal processing means processes temperature and
Electric field signal information, shrinkage intermediate connection tube are externally provided with copper mesh, and the copper mesh wraps up all components in shrinkage intermediate connection tube.
2. according to the three core transition joint of a kind of novel cable shrinkage described in claim 1, it is characterised in that：The copper screen
Pipe and cable armouring internal diameter is covered with cable inner core and cable internal diameter to match.
3. according to the three core transition joint of a kind of novel cable shrinkage described in claim 1, it is characterised in that：The stress
Cone is located at shrinkage intermediate connection tube both ends, and stress cone strengthens margin design.
4. according to the three core transition joint of a kind of novel cable shrinkage described in claim 1, it is characterised in that：The signal
Processing unit is equipped with position positioning and warning function, when sensor sensing, which goes out temperature or electric field strength, is persistently higher than threshold value, letter
Number processing unit sends out position and warning information by position positioning and warning function, and service personnel is reminded to overhaul in advance.
5. according to the three core transition joint of a kind of novel cable shrinkage described in claim 4, it is characterised in that：The signal
Processing unit is connected in parallel three shrinkage intermediate connection tubes by the second radio-frequency cable.
6. according to the three core transition joint of a kind of novel cable shrinkage described in claim 4, it is characterised in that：The signal
Processing unit is equipped with power-supply device, and electric energy is provided for signal processing and transmitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721601546.8U CN207504549U (en) | 2017-11-22 | 2017-11-22 | A kind of three core transition joint of novel cable shrinkage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721601546.8U CN207504549U (en) | 2017-11-22 | 2017-11-22 | A kind of three core transition joint of novel cable shrinkage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207504549U true CN207504549U (en) | 2018-06-15 |
Family
ID=62506714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721601546.8U Expired - Fee Related CN207504549U (en) | 2017-11-22 | 2017-11-22 | A kind of three core transition joint of novel cable shrinkage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207504549U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110658191A (en) * | 2019-09-17 | 2020-01-07 | 全球能源互联网欧洲研究院 | Conductor on-line monitoring system and method for cable intermediate joint and manufacturing method thereof |
-
2017
- 2017-11-22 CN CN201721601546.8U patent/CN207504549U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110658191A (en) * | 2019-09-17 | 2020-01-07 | 全球能源互联网欧洲研究院 | Conductor on-line monitoring system and method for cable intermediate joint and manufacturing method thereof |
| CN110658191B (en) * | 2019-09-17 | 2022-06-21 | 全球能源互联网欧洲研究院 | Conductor on-line monitoring system and method for cable intermediate joint and manufacturing method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180615 Termination date: 20211122 |
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| CF01 | Termination of patent right due to non-payment of annual fee |