A kind of cable splice temperature measuring equipmentTechnical field
The utility model relates to the electric power system field, relates in particular to a kind of cable splice temperature measuring equipment.
Background technology
In electric power system, high-tension line plays extremely important function served as bridge, and it is carrying high-tension electric current, in case therefore security incident appears in high-tension line, just very likely causes the paralysis of whole electric power system.In causing many reasons of high-tension line security incident, because the security incident that the cable splice loose contact is caused is the most common.Owing to the cable splice loose contact causes the principle of security incident as follows: in the high-tension line operational process, the cable splice loose contact, the resistance at cable splice place is increased gradually, temperature raises gradually, serious meeting causes cable splice to cross cause thermal damage, even catching fire, just very likely develop into security incident as untimely processing; Hence one can see that, as long as the temperature of real-time detection streamer joint is found the cable splice that temperature raises as early as possible, just can in time fix a breakdown, and guarantees the normal operation of high-tension line, prevents the generation of security incident.
Up to now, existing cable splice temp measuring method roughly can comprise:
(1) contactless temperature-measuring: all temperature are not all launched infrared ray for the object of absolute zero, and ultrared wavelength and temperature are inversely proportional to, as long as measure the ultrared wavelength that certain is a bit launched, just can know the temperature value of this point; This temp measuring method need will be measured the temperature probe of Infrared wavelength over against point for measuring temperature, because near the space the cable splice is limited, be difficult to find over against cable splice and the suitable position that ultrared wavelength is installed, so this temp measuring method is not suitable for the thermometric to cable splice;
(2) contact temperature-measuring: temperature probe is directly contacted with the point for measuring temperature of cable splice, and gather the temperature signal of point for measuring temperature, thereby obtain the temperature value of this point for measuring temperature by temperature probe; This temp measuring method efficiently solves the temperature probe inconvenience installation question of above-mentioned contactless temperature-measuring, but for traditional contact temperature-measuring, is difficult to real-time monitor the temperature variations of each cable splice;
At present, a kind of wireless temperature measurement mode that the contact thermography technology is combined with wireless communication technology becomes a kind of cable splice temp measuring method that generally adopts, it efficiently solves carries out real-time problems of monitoring to the temperature of a plurality of cable splices, and with low cost, saved power consumption.Existing wireless temperature measuring device is that the temperature probe that will temperature probe be housed integrates with the temperature survey transmitting element that wireless sending module is housed, corresponding temperature probe is general-purpose interface, as long as temperature probe is fixed on the point for measuring temperature of cable splice by binding or bonding method, just can carries out thermometric to cable splice.
In the technique scheme, there are the following problems at least:
The first, existing wireless temperature measuring device is fixed to temperature probe on the point for measuring temperature of cable splice by binding or bonding method, not only be not easy to installation and maintenance, and can not guarantee that temperature probe contacts with cable splice closely, might make measurement result deviation occur, the accuracy that influence is measured;
The second, owing to need installation personnel directly on high-tension cable, to finish in binding or paste operation, thus in the installation process of existing wireless temperature measuring device, the high-tension line transmission of must stopping power supply, this understands bring a lot of inconvenience to the user.
Summary of the invention
The purpose of this utility model provides a kind of cable splice temperature measuring equipment, so that not only can be under the situation that the insulating property that guarantee cable splice do not reduce, accurately measure the temperature of cable splice, and simplified the installation and maintenance operation, can also carry out charged installing/dismounting.
The purpose of this utility model is achieved through the following technical solutions:
A kind of cable splice thermometric dispensing device is used to measure the temperature parameter ofcable splice 2, sends to cable splice thermometric receiving andprocessing device 4, comprising:temperature probe 5 and temperaturesurvey transmitting element 3;
Describedtemperature probe 5 is embedded in the inside ofcable splice 2, and is connected with described temperaturesurvey transmitting element 3 by thetemperature probe interface 6 that is arranged on thecable splice 2; The temperature parameter that described temperaturesurvey transmitting element 3records temperature probe 5 by wireless transmission method sends to cable splice thermometric receiving andprocessing device 4.
Preferably, correspondingtemperature probe interface 6 comprises wiring slot and fixed chuck;
Described wiring slot comprises two wiring holes, is provided with the sheet metal that links to each other withtemperature probe 5 one ends in one of them wiring hole, is provided with the sheet metal that links to each other withtemperature probe 5 other ends in another wiring hole;
Described fixed chuck is located at the outer rim oftemperature probe interface 6.
Preferably, corresponding temperaturesurvey transmitting element 3 comprises insulation crust, fixedly bayonet socket, connection plug, thermometric control module, wireless sending module and power supply;
Described fixedly bayonet socket is arranged on the insulation crust, and is connected with the fixed chuck of describedtemperature probe interface 6, so that temperaturesurvey transmitting element 3 is fixed on thecable splice 2;
Described connection plug, thermometric control module, wireless sending module and power supply all are arranged at the inside of insulation crust;
Described thermometric control module is connected with the wiring slot of describedtemperature probe interface 6 by connection plug, controlling the temperature parameter that describedtemperature probe 5 obtainscable splice 2, and send to described cable splice thermometric receiving andprocessing device 4 by the temperature parameter that wireless sending modulerecords temperature probe 5;
Described power supply is connected with wireless sending module with the thermometric control module, so that provide regulated power for thermometric control module and wireless sending module.
Preferably,corresponding temperature probe 5 comprises thermistor, thermal resistance or thermopair.
A kind of cable splice thermometric receiving and processing device, be used to receive the temperature parameter that cable splice thermometric dispensing device sends, and send to the temperature treatment terminal after described temperature parameter handled, comprising: wireless receiving module, communication interface modules, processes temperature signal module and power module;
Described processes temperature signal module receives the temperature parameter that described cable splice thermometric dispensing device sends by wireless receiving module, and sends to communication interface modules after described temperature parameter handled;
Described communication interface modules receives the temperature parameter that described processes temperature signal module sends, and sends to the temperature treatment terminal;
Described power module is connected with described wireless receiving module, communication interface modules and processes temperature signal module, so that provide regulated power for described wireless receiving module, communication interface modules and processes temperature signal module.
Preferably, corresponding temperature reception processing unit also comprises display module;
Described display module is connected with described processes temperature signal module, and receives the temperature parameter of described cable splice, for demonstration;
Described display module also is connected with described power module, so that described power module provides regulated power for described display module.
Preferably, corresponding temperature reception processing unit also comprises the sound and light alarm module;
Described sound and light alarm module is connected with described processes temperature signal module, and receives the temperature parameter of described cable splice, sends sound and light alarm when being higher than preset value with the temperature information at described cable splice;
Described sound and light alarm module also is connected with described power module, so that described power module provides regulated power for described sound and light alarm module.
Preferably, the corresponding communication interface module comprises: serial ports, parallel port, Ethernet interface, general-purpose serial bus USB interface, microwave transmission interface, blue tooth interface, infrared interface and/or radio network interface.
Preferably, corresponding temperature treatment terminal comprises local temperature treatment terminal or remote temperature office terminal.
A kind of cable splice temperature measuring equipment is used to measure the temperature parameter ofcable splice 2, and described temperature parameter is sent to the temperature treatment terminal, comprising: cable splice thermometric dispensing device described in the technique scheme and cable splice thermometric receiving andprocessing device 4;
Described cable splice thermometric dispensing device comprisestemperature probe 5 and temperaturesurvey transmitting element 3; Describedtemperature probe 5 is embedded in the inside of describedcable splice 2; And be connected with described temperaturesurvey transmitting element 3 by thetemperature probe interface 6 that is arranged on thecable splice 2; The temperature parameter that described temperaturesurvey transmitting element 3records temperature probe 5 by wireless transmission method sends to cable splice thermometric receiving andprocessing device 4;
Described cable splice thermometric receiving andprocessing device 4 comprises wireless receiving module, communication interface modules and processes temperature signal module; Described processes temperature signal module receives the temperature parameter that the temperaturesurvey transmitting element 3 of described cable splice thermometric dispensing device sends by wireless receiving module, and sends to communication interface modules after described temperature parameter handled; Described communication interface modules receives the temperature parameter that described processes temperature signal module sends, and sends to the temperature treatment terminal.
The technical scheme that is provided by above-mentioned the utility model as can be seen, the cable splice temperature measuring equipment that the utility model embodiment provides is embedded intemperature probe 5 inside ofcable splice 2, and be connected with temperaturesurvey transmitting element 3 bytemperature probe interface 6, not only can under the situation that the insulating property that guarantee cable splice do not reduce, accurately measure the temperature of cable splice, and simplified the installation and maintenance operation, can also carry out charged installing/dismounting.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain other accompanying drawings according to these accompanying drawings.
The installation site synoptic diagram of the cable splice temperature measuring equipment that Fig. 1 provides for the utility model embodiment;
The structural representation of the cable splice that the cable splice temperature measuring equipment is installed that Fig. 2 provides for the utility model embodiment;
The structural representation of the cable splice temperature measuring equipment that Fig. 3 provides for the utility model embodiment;
The structured flowchart one of the cable splice temperature measuring equipment that Fig. 4 provides for the utility model embodiment;
The structured flowchart two of the cable splice temperature measuring equipment that Fig. 5 provides for the utility model embodiment;
The structured flowchart three of the cable splice temperature measuring equipment that Fig. 6 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on embodiment of the present utility model, those of ordinary skills belong to protection domain of the present utility model not making the every other embodiment that is obtained under the creative work prerequisite.
At first; need to prove; the described cable splice of the utility model embodiment includes but not limited to the cable splice in the electric power systems such as high-tension line, switch cubicle, 10KV consumer networks; in all electric power systems; based on embodiment of the present utility model; those of ordinary skills belong to protection domain of the present utility model not making the cable splice that is obtained under the creative work prerequisite.
The specific implementation structure of the cable splice temperature measuring equipment that the utility model embodiment provides can comprise cable splice thermometric dispensing device and cable splice thermometric receiving and processing device, will be described respectively below.
(1) cable splice thermometric dispensing device
As Fig. 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, a kind of cable splice thermometric dispensing device, be used to measure the temperature parameter ofcable splice 2, and send to cable splice thermometric receiving andprocessing device 4, its concrete structure can comprise:temperature probe 5 and temperaturesurvey transmitting element 3; Describedtemperature probe 5 is embedded in the inside ofcable splice 2, and is connected with temperaturesurvey transmitting element 3 by thetemperature probe interface 6 that is arranged on thecable splice 2; The temperature parameter that temperaturesurvey transmitting element 3records temperature probe 5 by wireless transmission method sends to cable splice thermometric receiving andprocessing device 4.
Wherein,corresponding temperature probe 5 can comprise temperature probes such as thermistor, thermal resistance or thermopair, can also all can be used for the sensor of contact temperature-measuring; When adopting different temperature probes, corresponding temperaturesurvey transmitting element 3 will adopt different thermometric modulate circuits.
Wherein, correspondingtemperature probe interface 6 can comprise wiring slot and fixed chuck; Corresponding wiring slot comprises two wiring holes, is provided with the sheet metal that links to each other withtemperature probe 5 one ends in one of them wiring hole, is provided with the sheet metal that links to each other withtemperature probe 5 other ends in another wiring hole; Corresponding fixed chuck is located at the outer rim oftemperature probe interface 6, is used for fixing temperaturesurvey transmitting element 3.
Wherein, corresponding temperaturesurvey transmitting element 3 can comprise insulation crust, fixedly bayonet socket, connection plug, thermometric control module, wireless sending module and power supply; Corresponding fixedly bayonet socket is arranged on the insulation crust, and is connected with the fixed chuck of describedtemperature probe interface 6, so that temperaturesurvey transmitting element 3 is fixed on thecable splice 2; Corresponding connection plug, thermometric control module, wireless sending module and power supply all are arranged at the inside of insulation crust;
Particularly, corresponding connection plug is connected with sheet metal in the wiring slot with the thermometric control module simultaneously, thereby makes the thermometric control module control the temperature parameter thattemperature probes 5 obtaincable splice 2 by thistemperature probe interface 6; Corresponding thermometric control module is provided with signal condition change-over circuit and temperature correction circuit, the temperature parameter that is obtained fromtemperature probe 5 is that an existence is disturbed and unsettled simulating signal, through changing stable digital signal into behind the conditioning change-over circuit, carry out temperature correction through temperature correction circuit again, thereby obtain the Exact Number temperature parameter, the thermometric control module sends to corresponding cable splice thermometric receiving andprocessing device 4 with this temperature parameter by wireless sending module more then, handles measured temperature parameter is carried out further statistical study; Corresponding power supply is connected with wireless sending module with the thermometric control module, so that provide regulated power for thermometric control module and wireless sending module.
(2) cable splice thermometric receiving and processing device
As Fig. 1, Fig. 5 and shown in Figure 6, a kind of cable splice thermometric receiving and processing device, be used to receive the temperature parameter that cable splice thermometric dispensing device sends, and sending to the temperature treatment terminal after described temperature parameter handled, its concrete structure comprises: wireless receiving module, communication interface modules, processes temperature signal module and power module;
Described processes temperature signal module receives the temperature parameter that cable splice thermometric dispensing device sends by wireless receiving module, and sends to communication interface modules after described temperature parameter handled; Described communication interface modules receives the temperature parameter that described processes temperature signal module sends, and sends to the temperature treatment terminal; Described power module is connected with described wireless receiving module, communication interface modules and processes temperature signal module, so that provide regulated power for described wireless receiving module, communication interface modules and processes temperature signal module.
Wherein, the corresponding communication interface module can comprise: serial ports (described serial ports can comprise that transfer rate is the RS-485 serial line interface of 9600-921.6kps and/or the RS-232 serial line interface that transfer rate is 9600-57.6kps), the parallel port, Ethernet interface (described Ethernet interface can comprise the RJ-45 Ethernet interface), USB (English full name: Universal Serial BUS, be translated into: USB (universal serial bus)) interface, the microwave transmission interface, blue tooth interface, (described radio network interface can comprise GPRS (English full name: General Packet Radio Service for infrared interface and/or radio network interface, be translated into: the general packet radio service technology) (the English full name of CDMA is Code-Division MultipleAccess, is translated into CDMA for interface and/or CDMA 1X; CDMA 1X is meant the phase one of CDMA2000) interface); These communication interfaces can be sent to information different temperature treatment terminals, and for example corresponding temperature treatment terminal can comprise local temperature treatment terminal or remote temperature office terminal.
Except that technique scheme, this cable splice thermometric receiving and processing device can also comprise at least a in the following scheme in specific implementation process:
(1) corresponding temperature reception processing unit can also comprise display module; Corresponding display module is connected with the processes temperature signal module, and receives the temperature parameter of described cable splice, and with the temperature parameter information with different cable splices, and relevant statistical information is shown to operating personnel; Simultaneously, corresponding display module also is connected with power module, to obtain the required electric energy of display module operation.
(2) corresponding temperature reception processing unit can also comprise the sound and light alarm module; Corresponding sound and light alarm module is connected with the processes temperature signal module, and receives the temperature parameter of described cable splice, sends sound and light alarm when being higher than preset value with the temperature information at described cable splice; Simultaneously, corresponding sound and light alarm module also is connected with power module, to obtain the required electric energy of sound and light alarm module operation.
(3) complete cable splice temperature measuring equipment
As Fig. 1 and shown in Figure 6, a kind of cable splice temperature measuring equipment, be used to measure the temperature parameter ofcable splice 2, and described temperature parameter sent to the temperature treatment terminal, its concrete structure can comprise: above-mentioned cable splice thermometric dispensing device and above-mentioned cable splice thermometric receiving andprocessing device 4.
Embodiment one
A kind of cable splice temperature measuring equipment is used to measure the temperature parameter ofcable splice 2, and described temperature parameter is sent to the temperature treatment terminal, and its concrete structure can comprise: cable splice thermometric dispensing device and cable splice thermometric receiving andprocessing device 4.
Wherein, corresponding cable splice thermometric dispensing device can comprise temperature probe 5 and temperature survey transmitting element 3; Described temperature probe 5 is embedded in the inside of described cable splice 2; And be connected with described temperature survey transmitting element 3 by the temperature probe interface 6 that is arranged on the cable splice 2; The temperature parameter that described temperature survey transmitting element 3 records temperature probe 5 by wireless transmission method sends to cable splice thermometric receiving and processing device 4; Described temperature survey transmitting element 3 can comprise insulation crust, fixedly bayonet socket, connection plug, thermometric control module, wireless sending module and power supply; Corresponding fixedly bayonet socket is arranged on the insulation crust, and is connected with the fixed chuck of described temperature probe interface 6, so that temperature survey transmitting element 3 is fixed on the cable splice 2; Corresponding connection plug, thermometric control module, wireless sending module and power supply all are arranged at the inside of insulation crust; Corresponding thermometric control module is connected with the wiring slot of temperature probe interface 6 by connection plug, controlling the temperature parameter that described temperature probe 5 obtains cable splice 2, and send to described cable splice thermometric receiving and processing device 4 by the temperature parameter that wireless sending module records temperature probe 5; Corresponding power supply is connected with wireless sending module with the thermometric control module, so that provide regulated power for thermometric control module and wireless sending module.
Wherein, corresponding cable splice thermometric receiving andprocessing device 4 can comprise wireless receiving module, communication interface modules, processes temperature signal module, display module, sound and light alarm module and power module; Described processes temperature signal module receives the temperature parameter that the temperaturesurvey transmitting element 3 of described cable splice thermometric dispensing device sends by wireless receiving module, and sends to communication interface modules after described temperature parameter handled; Described communication interface modules receives the temperature parameter that described processes temperature signal module sends, and sends to the temperature treatment terminal; Described display module is connected with the processes temperature signal module, and receives the temperature parameter of described cable splice, and with the temperature parameter information with different cable splices, and relevant statistical information is shown to operating personnel; Described sound and light alarm module is connected with the processes temperature signal module, and receives the temperature parameter of described cable splice, sends sound and light alarm when being higher than preset value with the temperature information at described cable splice; Described power module is connected with wireless receiving module, communication interface modules, processes temperature signal module, display module and acousto-optic alarm module, so that provide stable electric energy for wireless receiving module, communication interface modules, processes temperature signal module, display module and acousto-optic alarm module.
Particularly, in high-tension line 1, can exist if eachcable splice 2 all is embedded withtemperature probe 5, and is connected with temperaturesurvey transmitting element 3 in these cable splices 2; 5 pairs of cable splices 2 separately of these temperature probes carry out thermometric, corresponding temperaturesurvey transmitting element 3 sends to same cable splice thermometric receiving andprocessing device 4 by wireless transmission method with the temperature parameter of each measuredcable splice 2, thereby has constituted a thermometric network; Thermometric receiving andprocessing device 4 carries out the sorting-out in statistics analysis to these temperature parameters, and eachcable splice 2 sent to local temperature treatment terminal or remote temperature office terminal, operating personnel only need carefully check the data of local temperature treatment terminal or remote temperature office terminal, just can know whethercable splice 2 loose contacts, 2 loose contacts of which cable splice are arranged on this high-tension line 1; Thereby the fault that can get rid of this high-tension line timely and accurately guarantees the normal operation of this high-tension line 1.
Need to prove, because wireless transmission has certain distance limit, so thecable splice 2 in radio transmission range allows can adopt same cable splice thermometric receiving andprocessing device 4, to save cost; For thecable splice 2 that exceeds radio transmission range, then can only adopt a plurality of cable splice thermometric receiving andprocessing devices 4 to guarantee real-time monitoring to all cable splices 2.
As seen, the realization of the embodiment of the invention is the inside thattemperature probe 5 is embedded incable splice 2, and be connected with temperaturesurvey transmitting element 3 bytemperature probe interface 6, thereby efficiently solve existing wireless temperature measuring device and be difficult for the problem that there are error in installation and maintenance and measurement result, not only can be under the situation that the insulating property that guarantee cable splice do not reduce, accurately measure the temperature of cable splice, and simplified the installation and maintenance operation, can also carry out charged installing/dismounting.This installation cost is cheap, energy efficient, working stability, long service life, engineering practicability are strong, therefore possesses very strong market popularization value.
The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.