CN208238994U - A kind of interfacial pressure detection device of cable accessory - Google Patents
A kind of interfacial pressure detection device of cable accessory Download PDFInfo
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- CN208238994U CN208238994U CN201820559183.4U CN201820559183U CN208238994U CN 208238994 U CN208238994 U CN 208238994U CN 201820559183 U CN201820559183 U CN 201820559183U CN 208238994 U CN208238994 U CN 208238994U
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- detection device
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Abstract
The utility model discloses a kind of interfacial pressure detection devices of cable accessory, comprising: cable, temperature sensor, pressure sensor, heating system and data acquisition module；Wherein, the surface of the cable is used for connecting cable attachment, so that the cable accessory wraps up the cable；The pressure sensor is set to the surface of the cable, and the temperature sensor is set in the cable；The heating system is separately connected the both ends of the cable, and the heating system is used to carry out heating to the cable until the temperature of the cable reaches preset temperature；The data acquisition module is separately connected the temperature sensor and the pressure sensor.Using the embodiments of the present invention, can dummycable work when different temperatures the case where changing, thus really reflection cable accessory interfacial pressure situation of change at work.
Description
Technical field
The utility model relates to field of cable technology more particularly to a kind of interfacial pressure detection devices of cable accessory.
Background technique
Cable accessory is a part indispensable in cable run, while being also link most weak in entire route,
The quality of cable accessory has vital influence to the safe operation of cable run.Cable accessory during the installation process, meeting
On installation to the cable of different inner diameters, to realize different magnitude of interference, and a pre-expansion is had before cable accessory installation
The process of diameter.Cable accessory magnitude of interference properly can just make cable accessory and cable interface pressure good, to avoid generating gas
The defects of gap, it is ensured that cable operates normally.Therefore, attached to cable with the interfacial pressure of cable surface after the expansion of test cable attachment
Developing and designing for part is particularly significant.
Existing measuring technique is mostly hydrostatic(al) process and foil gauge method of testing, such method exist test trouble, time compared with
The disadvantages of long.And since cable accessory cooperates a variety of internal diameter cables to realize different magnitude of interference, due to current-carrying capacity difference when operation
Temperature will appear large change, and the variation of temperature similarly will affect the interfacial pressure of cable accessory, at this point, then needing to test not
With the interfacial pressure situation of change of magnitude of interference situation and different temperatures cable accessory, and it is not directed to related temperature in the prior art
The test for spending the influence to the interfacial pressure of cable accessory, to be unable to get temperature to the shadow of the interfacial pressure of cable accessory
It rings.
Utility model content
The purpose of the utility model embodiment is to provide a kind of interfacial pressure detection device of cable accessory, can simulate electricity
The case where different temperatures changes when cable works, to really reflect cable accessory interfacial pressure situation of change at work.
To achieve the above object, the utility model embodiment provides a kind of interfacial pressure detection device of cable accessory,
It include: cable, temperature sensor, pressure sensor, heating system and data acquisition module；Wherein,
The surface of the cable is used for connecting cable attachment, so that the cable accessory wraps up the cable；
The pressure sensor is set to the surface of the cable, and the temperature sensor is set in the cable；
The heating system is separately connected the both ends of the cable, and the heating system is for heating the cable
Until the temperature of the cable reaches preset temperature；
The data acquisition module is separately connected the temperature sensor and the pressure sensor.
Compared with prior art, a kind of interfacial pressure detection device of cable accessory disclosed by the utility model is by by institute
It states cable accessory to install to the cable, wherein the surface of the cable is equipped with pressure sensor, the inside of the cable
Equipped with temperature sensor, then the cable is heated by the heating system again, to pass through data acquisition module
The data of the temperature sensor and the pressure sensor are obtained to determine the pressure changing of the cable accessory.It solves
It is not directed to the test of the influence in relation to temperature to the interfacial pressure of cable accessory in the prior art, to be unable to get temperature
The problem of spending influence to the interfacial pressure of cable accessory, can dummycable work when different temperatures the case where changing, thus
Really reflect cable accessory interfacial pressure situation of change at work.
As an improvement of the above scheme, the pressure sensor be respectively arranged on the low compressive stress of the cable accessory cone,
On the surface of insulating layer and the corresponding cable of high voltage shield.
As an improvement of the above scheme, the data acquisition module includes that temperature measuring device and multichannel sensor data are adopted
Collect processing system；Wherein,
The temperature measuring device is connect with the temperature sensor, the multichannel sensor data acquisition processing system with
The pressure sensor connection.
As an improvement of the above scheme, the heating system includes low-tension supply, pressure regulator and current lifting device；Wherein,
The low-tension supply is separately connected the pressure regulator and the current lifting device, and the pressure regulator is separately connected the cable
Both ends, the current lifting device is separately connected the both ends of the cable.
As an improvement of the above scheme, the interfacial pressure detection device further includes universal testing machine, the universal test
Machine for calibrating the pressure sensor automatically.
As an improvement of the above scheme, the interfacial pressure detection device further includes pre- expander, the pre- expanding dress
It sets for carrying out pre- expanding, the magnitude of interference passes through the cable internal diameter and the electricity to the cable accessory according to magnitude of interference
The internal diameter of cable fittings determines.
Detailed description of the invention
Fig. 1 is a kind of structural representation of the interfacial pressure detection device of cable accessory provided by the embodiment of the utility model
Figure；
Fig. 2 is pressure sensor in a kind of interfacial pressure detection device of cable accessory provided by the embodiment of the utility model
With the distribution schematic diagram of temperature sensor.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
It is a kind of knot of the interfacial pressure detection device of cable accessory provided by the embodiment of the utility model referring to Fig. 1, Fig. 1
Structure schematic diagram；It include: cable 1, temperature sensor 2, pressure sensor 3, data acquisition module 4 and heating system 5；Wherein,
The surface of the cable 1 is used for connecting cable attachment 6, so that the cable accessory 6 wraps up the cable 1；
The pressure sensor 3 is set to the surface of the cable 1, and the temperature sensor 2 is set in the cable 1；
The heating system 5 is separately connected the both ends of the cable 1, and the heating system 5 is used to carry out the cable 1
Heating is until the temperature of the cable 1 reaches preset temperature；
The data acquisition module 4 is separately connected the temperature sensor 2 and the pressure sensor 3.
Specifically, choosing one section of cable 1 for removing oversheath, it is preferred that the cable 1 is threephase cable, the electricity
The external insulation layer and core of cable 1 are grounded, and determine the cable by the internal diameter of the cable 1 and the internal diameter of the cable accessory 6
The magnitude of interference of attachment 6, the magnitude of interference determine that the tightness that the cable 1 and the cable accessory 6 combine, the cable are attached
The resulting algebraic step of internal diameter that the internal diameter of part 6 subtracts the cable 1 is that timing claims gap, and interference is claimed when being negative.Preferably, work as institute
It is timing that the internal diameter for stating cable accessory 6, which subtracts the resulting algebraic step of internal diameter of the cable 1, and the magnitude of interference is 0, in practical feelings
In condition, to ensure that the cable accessory 6 can be accurately mounted on the cable 1, to avoid the defects of generating air gap, it is ensured that
Cable 1 operates normally, and the internal diameter of the cable accessory 6 is usually smaller than the internal diameter of the cable 1.
Preferably, the interfacial pressure detection device further includes pre- expander, and the pre- expander is used for according to mistake
The amount of being full of carries out the cable accessory 6 pre- expanding, and the magnitude of interference passes through the internal diameter of the cable 1 and the cable accessory 6
Internal diameter determines.6 magnitude of interference of cable accessory properly can just make the interfacial pressure of the cable 1 good, according to the interference
Amount the cable accessory 6 is carried out using pre- expander it is pre- expanding, so as to more square when installing the cable accessory 6
Just, while the damage of the cable 1 will not be caused because of cable 1 described in excessive compression.
Preferably, the pressure sensor 3 may include first pressure sensor 31, second pressure sensor 32, third
Pressure sensor 33, the 4th pressure sensor 34 and the 5th pressure sensor 35, it is preferred that in conjunction with Fig. 2, Fig. 2 be that this is practical
The distribution of pressure sensor and temperature sensor in a kind of interfacial pressure detection device for cable accessory that new embodiment provides
Schematic diagram, the first pressure sensor 31 and the 5th pressure sensor 35 are respectively arranged on low with the cable accessory 6
Compression is bored on the surface of the corresponding cable 1, and the second pressure sensor 32 and the 4th pressure sensor 34 divide
She Yu not be on the surface of the cable 1 corresponding with the insulating layer of the cable accessory 6, the third pressure sensor 33 is set to
On the surface for boring the corresponding cable 1 with the low compressive stress of the cable accessory 6.The pressure sensor 3 is for measuring institute
State the interfacial pressure of cable accessory 6.It preferably, can be by the surface drilling in the cable 1, thus in the cable 1
The temperature sensor 2 is installed in inside, and the temperature sensor 2 is used to detect the temperature of the cable 1.
Specifically, being heated to the cable 1, it is preferred that can by the heating system 5 to the cable 1 into
Row heating, the heating system 5 include low-tension supply 51, pressure regulator 52 and current lifting device 53.The heating system 5 is CT heating
System.The low-tension supply 51 is separately connected the pressure regulator 52 and the current lifting device 53, and the pressure regulator 52 is separately connected institute
The both ends of cable 1 are stated, the current lifting device 53 is separately connected the both ends of the cable 1, and the pressure regulator 25 is connect in the low pressure
Among power supply 51 and the cable 1, corresponding trigger control circuit plate is mixed, so that it may the electricity that adjustment is added on the cable 1
Pressure, electric current and power.After the current lifting device 53 accesses working power (low-tension supply 51), by adjusting in the current lifting device 53
Regulator output voltage so as to increase the electric current of the cable 1, and then makes the temperature of the cable 1 to obtain high current
Degree increases.
When the temperature of the cable 1 reaches the preset temperature, the heating system 5 protects the temperature of the cable 1
It holds constant in the preset temperature.During being heated to the cable 1, the acquisition in real time of data acquisition module 4
The data of the temperature sensor 2 and the pressure sensor 3, to pass through the temperature sensor 2 and the pressure sensing
The data of device 3 analyze the interfacial pressure of the cable accessory 6, obtain the interfacial pressure and temperature of the cable accessory 6
Between relationship.
Preferably, the data acquisition module 4 includes temperature measuring device 41 and multichannel sensor data acquisition process system
System 42；Wherein, the temperature measuring device 41 is used to acquire the data of the temperature sensor 2, the multichannel sensor data
Acquisition processing system 42 is used to acquire the data of the pressure sensor 3.Preferably, the temperature can be surveyed by host computer
Try the data for the temperature sensor 2 that instrument 41 acquires and the institute of the multichannel sensor data acquisition processing system 42 acquisition
The data for stating pressure sensor 3 carry out united analysis, so that the curve graph of temperature and pressure is obtained, more convenient analysis temperature pair
The influence situation of the interfacial pressure of the cable accessory 6.
Preferably, the interfacial pressure detection device further includes universal testing machine, and the universal testing machine is used for described
Pressure sensor 3 is calibrated automatically.It, can be by universal testing machine to the pressure before the pressure sensor 3 is installed
Force snesor 3 is calibrated automatically, and the universal testing machine is a dynamics experimental device, in the specific implementation, can be by omnipotent
Testing machine control applies pressure value to each pressure sensor 3, while the resistance for measuring each pressure sensor 3 becomes
Change, by the corresponding relationship of stress (pressure) and resistance, obtains the stress curve of the pressure sensor 3.And described in difference
The stress curve of pressure sensor 3 is different, converts to obtain actual pressure value by the stress curve in actual test.
Compared with prior art, a kind of interfacial pressure detection device of cable accessory disclosed by the utility model is by by institute
It states in the installation to the cable 1 of cable accessory 6, wherein the surface of the cable 1 is equipped with pressure sensor 3, the cable 1
Inside be equipped with temperature sensor 2, then the cable 1 is heated by the heating system 5 again, to pass through data
Acquisition module 4 obtains the data of the temperature sensor 2 and the pressure sensor 3 to determine the pressure of the cable accessory 6
Situation of change.Solve the test for being not directed to the influence in relation to temperature to the interfacial pressure of cable accessory in the prior art,
To be unable to get influence of the temperature to the interfacial pressure of cable accessory the problem of, can dummycable work when different temperatures become
The case where change, to really reflect cable accessory interfacial pressure situation of change at work.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these are improved and profit
Decorations are also considered as the protection scope of the utility model.
Claims (6)
1. a kind of interfacial pressure detection device of cable accessory characterized by comprising cable, temperature sensor, pressure sensing
Device, heating system and data acquisition module；Wherein,
The surface of the cable is used for connecting cable attachment, so that the cable accessory wraps up the cable；
The pressure sensor is set to the surface of the cable, and the temperature sensor is set in the cable；
The heating system is separately connected the both ends of the cable, the heating system be used to carry out heating to the cable until
The temperature of the cable reaches preset temperature；
The data acquisition module is separately connected the temperature sensor and the pressure sensor.
2. the interfacial pressure detection device of cable accessory as described in claim 1, which is characterized in that the pressure sensor point
It She Yu not be bored with the low compressive stress of the cable accessory, on the surface of insulating layer and the corresponding cable of high voltage shield.
3. the interfacial pressure detection device of cable accessory as described in claim 1, which is characterized in that the data acquisition module
Including temperature measuring device and multichannel sensor data acquisition processing system；Wherein,
The temperature measuring device is connect with the temperature sensor, the multichannel sensor data acquisition processing system with it is described
Pressure sensor connection.
4. the interfacial pressure detection device of cable accessory as described in claim 1, which is characterized in that the heating system includes
Low-tension supply, pressure regulator and current lifting device；Wherein,
The low-tension supply is separately connected the pressure regulator and the current lifting device, and the pressure regulator is separately connected the two of the cable
End, the current lifting device are separately connected the both ends of the cable.
5. the interfacial pressure detection device of cable accessory as described in claim 1, which is characterized in that the interfacial pressure detection
Device further includes universal testing machine, and the universal testing machine for calibrating the pressure sensor automatically.
6. the interfacial pressure detection device of cable accessory as described in claim 1, which is characterized in that the interfacial pressure detection
Device further includes pre- expander, and the pre- expander is used to carry out pre- expanding, institute to the cable accessory according to magnitude of interference
Magnitude of interference is stated to determine by the internal diameter of the cable and the internal diameter of the cable accessory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820559183.4U CN208238994U (en) | 2018-04-18 | 2018-04-18 | A kind of interfacial pressure detection device of cable accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820559183.4U CN208238994U (en) | 2018-04-18 | 2018-04-18 | A kind of interfacial pressure detection device of cable accessory |
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| CN208238994U true CN208238994U (en) | 2018-12-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318164A (en) * | 2018-04-18 | 2018-07-24 | 南方电网科学研究院有限责任公司 | A kind of the interfacial pressure detection method and device of cable accessory |
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2018
- 2018-04-18 CN CN201820559183.4U patent/CN208238994U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318164A (en) * | 2018-04-18 | 2018-07-24 | 南方电网科学研究院有限责任公司 | A kind of the interfacial pressure detection method and device of cable accessory |
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