CN106501694A - Ring main unit shelf depreciation and temperature real time on-line monitoring system - Google Patents
Ring main unit shelf depreciation and temperature real time on-line monitoring system Download PDFInfo
- Publication number
- CN106501694A CN106501694A CN201611264350.4A CN201611264350A CN106501694A CN 106501694 A CN106501694 A CN 106501694A CN 201611264350 A CN201611264350 A CN 201611264350A CN 106501694 A CN106501694 A CN 106501694A
- Authority
- CN
- China
- Prior art keywords
- cabinet
- push
- monitoring system
- line monitoring
- positioning apparatus
- 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.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/026—Means for indicating or recording specially adapted for thermometers arrangements for monitoring a plurality of temperatures, e.g. by multiplexing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
Abstract
The invention discloses a kind of ring main unit shelf depreciation and temperature real time on-line monitoring system，Including cabinet，Cabinet is internally mounted to line monitoring system circuit board、Wireless signal transmitting module、Rotary positioning apparatus，Circulating temperature detection means is installed on rotary positioning apparatus，Rotary positioning apparatus include electric rotating machine，The rotary positioning apparatus of the present invention are combined with circulating temperature detection means，Rotary positioning apparatus can make circulating temperature detection means rotate specific angle，Circulating temperature detection means can drive the distance of the adjustment of the first temperature sensor and rotary positioning apparatus，Rotary positioning apparatus are combined with circulating temperature detection means can make the first temperature sensor reach the optional position of on-line monitoring system circuit board by simple ground structure，On-line monitoring system circuit board specific region can be detected according to being actually needed for on-line monitoring system circuit board，So that temperature detection numerical value is more accurate.
Description
Technical field
The present invention relates to a kind of on-line measuring device, more precisely a kind of ring main unit shelf depreciation and temperature exist in real time
Line monitoring system.
Background technology
Ring main unit is that one group of transmission ＆ distribution electrical equipment (high-tension switch gear) is mounted in metal or non-metallic insulation cabinet or does
Into the electrical equipment of assembled compartment ring network power supplying units, its core is using on-load switch and fuse, simple with structure
List, small volume, price are low, the advantages of power supply parameter and performance and power supply safety can be improved.It is widely used in city and lives
In the power distribution station and box-type substation of the load centers such as residence cell, skyscraper, large public building, factory and enterprise.Existing
Ring main unit in order to prevent dust from entering, being designed to enclosed construction the top of ring main unit more, as hot-air rises, ring main unit
Heat can be gathered in top, reduce the thermal diffusivity of ring main unit.Existing ring main unit needs to manually adjust temperature-detecting device position,
Accurate detection could be carried out to ring main unit internal circuit.
Content of the invention
It is an object of the invention to provide a kind of ring main unit shelf depreciation and temperature real time on-line monitoring system, can solve the problem that
The problem that states.
The present invention for achieving the above object, is achieved through the following technical solutions：
A kind of ring main unit shelf depreciation and temperature real time on-line monitoring system, including cabinet, the inwall of the cabinet is arranged
There are thermal insulation layer, the thermal insulation layer to include stainless steel inner container layer, high temperature resistant layer of mineral wool, polyurethane high temperature resistant layer and the table for setting gradually
Cortex；Wherein, cabinet is internally mounted to line monitoring system circuit board, wireless signal transmitting module, rotary positioning apparatus, rotation
Circulating temperature detection means is installed on positioner, rotary positioning apparatus include that electric rotating machine, the output shaft of electric rotating machine are installed
Rotating seat, installs circulating temperature detection means on rotating seat, circulating temperature detection means includes support, the side of support and rotation
Swivel base connects, and installs two pulleys on support, and pulley is driven by motor, installs transmission belt between two pulleys, transmission belt
Both sides are coordinated with two pulleys of circulating temperature detection means respectively, install the first temperature sensor, the first temperature on transmission belt
The output end of sensor is connected with the signal input part of the first temperature sensor, and heat abstractor, on-line monitoring are installed in cabinet top
Transient earth voltage sensor, GPRS module and radio temperature sensor are installed on system circuit board, transient earth voltage sensor
The output end of output end and radio temperature sensor is all connected with the signal input part of GPRS module；The heat abstractor includes machine
Case, cabinet top open up open-work, and the top mounting plate of cabinet, fixed plate are coordinated with open-work, the lower vertical peace of fixed plate
Two guide posts are filled, the Upper vertical of cabinet opens up two through holes, and guide post is coordinated with through hole, and the upper inside of cabinet is installed and pushed away
Set casing installed by bar motor, the lower middle side part of fixed plate, and set casing is tubular shell, and the pull bar of push-rod electric machine is matched somebody with somebody with set casing
Close, the push-and-pull boom end of push-rod electric machine is located in set casing, the push-and-pull boom end of push-rod electric machine installs spring, one end of spring with
Push-rod electric machine connects, and the other end of spring is connected plate, installs the first retainer ring in the push-and-pull boom end side week of push-rod electric machine, Gu
Determine second retainer ring of installing in lower inner wall side week of shell, the internal diameter of the second retainer ring is less than the external diameter of the first retainer ring, and second is solid
Determine ring and the first retainer ring coordinates, two fans are installed in connecting rod, fan is installed towards open-work side, the upper inside wall of cabinet
Second temperature sensor and controller, second temperature sensor are connected by wire respectively by wire connection controller, controller
Wind-receiving fan and push-rod electric machine.Screw mandrel is installed in the lower end of the guide post, and fixed block is installed in screw mandrel lower end.Open up on the fixed block
Screw, screw are coordinated with screw mandrel.
It is an advantage of the current invention that：The rotary positioning apparatus of the present invention are combined with circulating temperature detection means, rotational positioning
Device can make circulating temperature detection means rotate specific angle, and circulating temperature detection means can drive the first temperature sensor
Adjustment and the distance of rotary positioning apparatus, rotary positioning apparatus are combined with circulating temperature detection means can pass through simple ground structure
The first temperature sensor is made to reach the optional position of on-line monitoring system circuit board, can be according to on-line monitoring system circuit board
It is actually needed and on-line monitoring system circuit board specific region is detected, so that temperature detection numerical value is more accurate.This
Bright pulley can drive transmission belt to move back and forth by Motor drive, make detection means just only need first temperature sensor
Temperature detection can be carried out to multiple positions of on-line monitoring system circuit board.Wireless signal transmitting module is by the first TEMP
The electric signal of device is uploaded to master control room computer by wireless signal, so as to facilitate operating personnel's on-line checking.Wireless temperature is passed
Sensor can measure the temperature of three-phase respectively, and the temperature for collecting wirelessly is passed to transient state by radio temperature sensor
Ground voltage sensor, transient earth voltage sensor can the current temperature value of displays temperature sensor and the local of current switch cabinet put
Electricity.Transient earth voltage sensor passes data to backstage master control room computer by GPRS, and sends to cell-phone customer terminal
Warning message.The present invention also has simple for structure compact, cheap for manufacturing cost and easy to use.
Description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, the reality with the present invention
Applying example is used for explaining the present invention together, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the structural representation of the present invention；I mplifying structure schematic diagrams of the Fig. 2 for Fig. 1；Fig. 3 is II of Fig. 1 and puts
Big structure schematic diagram.
Specific embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that preferred reality described herein
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
A kind of ring main unit shelf depreciation and temperature real time on-line monitoring system, as shown in Figure 1, Figure 2 and Figure 3, including cabinet
1, in order to improve the heat insulating effect of cabinet 1, the inwall of cabinet 1 is provided with thermal insulation layer (not shown), the thermal insulation layer bag
Include stainless steel inner container layer, high temperature resistant layer of mineral wool, polyurethane high temperature resistant layer and the epidermal area for setting gradually；Wherein, the inside of cabinet 1
On-line monitoring system circuit board 25, wireless signal transmitting module 26, rotary positioning apparatus is installed, is installed on rotary positioning apparatus and is followed
Ring temperature-detecting device, rotary positioning apparatus include that electric rotating machine 22, the output shaft of electric rotating machine 22 install rotating seat 24, rotation
Circulating temperature detection means is installed on seat 24, circulating temperature detection means includes support 29, the side of support 29 and rotating seat 24
Connection, installs two pulleys 21 on support 29, pulley 21 is driven by motor, installs transmission belt 20, transmission between two pulleys
Both sides with 20 are coordinated with two pulleys 21 of circulating temperature detection means respectively, install the first temperature sensor on transmission belt 20
23, the output end of the first temperature sensor 23 is connected with the signal input part of the first temperature sensor 23, and 1 top of cabinet is installed and dissipated
Thermal, installs transient earth voltage sensor 27, GPRS module and radio temperature sensor on on-line monitoring system circuit board 25
28, the signal that the output end of the output end of transient earth voltage sensor 27 and radio temperature sensor 28 is all connected with GPRS module is defeated
Enter end.
The rotary positioning apparatus of the present invention are combined with circulating temperature detection means, and rotary positioning apparatus examine can circulating temperature
Survey device and rotate specific angle, circulating temperature detection means can drive the adjustment of the first temperature sensor 23 to fill with rotational positioning
The distance that puts, rotary positioning apparatus are combined with circulating temperature detection means can make the first temperature sensor by simple ground structure
23 optional positions for reaching on-line monitoring system circuit board 25, can be right according to being actually needed for on-line monitoring system circuit board 25
25 specific region of on-line monitoring system circuit board is detected, so that temperature detection numerical value is more accurate.The pulley of the present invention
21 can drive transmission belt 20 to move back and forth by Motor drive, make detection means only need first temperature sensor 23 can
Temperature detection is carried out with the multiple positions to on-line monitoring system circuit board 25.First temperature is passed by wireless signal transmitting module 26
The electric signal of sensor 23 is uploaded onto the server by wireless signal, so as to facilitate operating personnel's on-line checking.Wireless temperature is sensed
Device can measure the temperature of three-phase respectively, and the temperature for collecting wirelessly is passed to transient state ground by radio temperature sensor
Voltage sensor, transient earth voltage sensor can displays temperature sensor current temperature value and the shelf depreciation of current switch cabinet
Amount.Transient earth voltage sensor passes data to backstage master control room computer by GPRS, and sends report to cell-phone customer terminal
Alarming information.
The heat abstractor includes that cabinet 1,1 top of cabinet open up open-work 8, and the top mounting plate 5 of cabinet 1 is fixed
Plate 5 is coordinated with open-work 8, and the lower vertical of fixed plate 5 installs two guide posts 2, and the Upper vertical of cabinet 1 opens up two through holes 3,
Guide post 2 is coordinated with through hole 3, and the upper inside of cabinet 1 installs push-rod electric machine 7, and the lower middle side part of fixed plate 5 installs set casing
12, set casing 12 is tubular shell, and the pull bar of push-rod electric machine 7 coordinated with set casing 12, the push-and-pull boom end position of push-rod electric machine 7
In set casing 12, the push-and-pull boom end of push-rod electric machine 7 installs spring 11, and one end of spring 11 is connected with push-rod electric machine 7, spring
11 other end is connected plate 5, and the push-and-pull boom end side week of push-rod electric machine 7 installs the first retainer ring 13, under set casing 12
Second retainer ring 14 is installed, the internal diameter of the second retainer ring 14 is less than the external diameter of the first retainer ring 13, and second fixes portion inwall side week
Ring 14 is coordinated with the first retainer ring 13, installs two fans 4 in connecting rod 9, and fan 4 is towards 8 side of open-work, the inwall of cabinet 1
Second temperature sensor 18 and controller 19 are installed in top, and second temperature sensor 18 is by wire connection controller 19, control
Device 19 connects fan 4 and push-rod electric machine 7 respectively by wire.Controller 19 is PLC module or single-chip microcomputer.
The present invention utilizes 18 measuring machine upper box part temperature of second temperature sensor, when cabinet upper temp is too high, control
Device 19 receives the signal of second temperature sensor 18, and control push-rod electric machine 7 is opened fan 4 while fixed plate 5 is opened, made
Cabinet upper air circulates so as to radiate, so as to substantially increase the thermal diffusivity of cabinet 1.The fixed plate 5 of the present invention is after unlatching
Still it is located above open-work 8, it is to avoid debris enter cabinets 1.The spring 11 of the present invention can play buffering and make to push-rod electric machine 7
With when user's imprudence is pressed onto fixed plate 5, spring 11 plays cushioning effect to pressure, it is to avoid pressure is applied directly to and pushes away
On bar motor 7, the damage of push-rod electric machine 7 is prevented.Second retainer ring 14 of the present invention is coordinated with the first retainer ring 13 can be prevented
Push-rod electric machine 7 comes off from set casing 12.
Screw mandrel 15 is installed in the lower end of the guide post 2, and fixed block 17 is installed in 15 lower end of screw mandrel.The fixed block 17 of the present invention can
To prevent guide post 2 from slipping from through hole 3.
Screw 16 is opened up on the fixed block 17, and screw 16 is coordinated with screw mandrel 15.The screw 16 of the present invention is matched somebody with somebody with screw mandrel 15
Close the dismounting that can facilitate fixed block 17.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to,
Although being described in detail to the present invention with reference to the foregoing embodiments, for a person skilled in the art, which still may be used
To modify to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic.
All any modification, equivalent substitution and improvements that within the spirit and principles in the present invention, is made etc., should be included in the present invention's
Within protection domain.
Claims (1)
1. a kind of ring main unit shelf depreciation and temperature real time on-line monitoring system, it is characterised in that：Including cabinet (1), the machine
The inwall of case (1) is provided with thermal insulation layer, and the thermal insulation layer includes the stainless steel inner container layer for setting gradually, high temperature resistant layer of mineral wool, gathers
Urethane high-temperature-resistant layer and epidermal area；Wherein, cabinet (1) is internally mounted to line monitoring system circuit board (25), wireless communication
Number transmitter module (26), rotary positioning apparatus, install circulating temperature detection means, rotary positioning apparatus bag on rotary positioning apparatus
Electric rotating machine (22) is included, the output shaft of electric rotating machine (22) installs rotating seat (24), and rotating seat (24) is upper to install circulating temperature inspection
Device is surveyed, circulating temperature detection means includes that support (29), the side of support (29) are connected with rotating seat (24), support (29)
Two pulleys (21) of upper installation, pulley (21) are driven by motor, install transmission belt (20), transmission belt (20) between two pulleys
Both sides coordinate with two pulleys (21) of circulating temperature detection means respectively, transmission belt (20) is upper to install the first temperature sensor
(23), the output end of the first temperature sensor (23) is connected with the signal input part of the first temperature sensor (23), on cabinet (1)
Heat abstractor is installed in portion, and on-line monitoring system circuit board (25) is upper to install transient earth voltage sensor (27), GPRS module and nothing
The output end of line temperature sensor (28), the output end of transient earth voltage sensor (27) and radio temperature sensor (28) connects
Connect the signal input part of GPRS module；The heat abstractor includes that cabinet (1), cabinet (1) top open up open-work (8), cabinet (1)
Top mounting plate (5), fixed plate (5) and open-work (8) coordinate, and the lower vertical of fixed plate (5) installs two guide posts
(2), the Upper vertical of cabinet (1) opens up two through holes (3), and guide post (2) is coordinated with through hole (3), the upper inside of cabinet (1)
Push-rod electric machine (7) is installed, the lower middle side part of fixed plate (5) installs set casing (12), set casing (12) is tubular shell, push rod electricity
The pull bar of machine (7) is coordinated with set casing (12), and the push-and-pull boom end of push-rod electric machine (7) is located in set casing (12), push rod electricity
The push-and-pull boom end of machine (7) installs spring (11), and one end of spring (11) is connected with push-rod electric machine (7), spring (11) another
Hold the push-and-pull boom end side week of the plate (5) that is connected, push-rod electric machine (7) that the first retainer ring (13) is installed, under set casing (12)
Second retainer ring (14) is installed, the internal diameter of the second retainer ring (14) is less than the external diameter of the first retainer ring (13) portion inwall side week, the
Two retainer rings (14) are coordinated with the first retainer ring (13), and connecting rod (9) is upper to install two fans (4), and fan (4) is towards open-work
(8) side, the upper inside wall of cabinet (1) second temperature sensor (18) and controller (19), second temperature sensor are installed
(18) by wire connection controller (19), controller (19) connects fan (4) and push-rod electric machine (7) respectively by wire；Institute
Screw mandrel (15) is installed in the lower end for stating guide post (2), and fixed block (17) is installed in screw mandrel (15) lower end；Open up on fixed block (17)
Screw (16), screw (16) are coordinated with screw mandrel (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611264350.4A CN106501694B (en) | 2016-12-30 | 2016-12-30 | Ring network cabinet shelf depreciation and temperature real time on-line monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611264350.4A CN106501694B (en) | 2016-12-30 | 2016-12-30 | Ring network cabinet shelf depreciation and temperature real time on-line monitoring system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106501694A true CN106501694A (en) | 2017-03-15 |
| CN106501694B CN106501694B (en) | 2019-07-02 |
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ID=58334911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611264350.4A Active CN106501694B (en) | 2016-12-30 | 2016-12-30 | Ring network cabinet shelf depreciation and temperature real time on-line monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106501694B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907044A (en) * | 2019-12-12 | 2020-03-24 | 张孝军 | Wireless passive temperature monitoring system for elbow-shaped head of ring main unit |
| CN115394020A (en) * | 2022-09-20 | 2022-11-25 | 华能辛店发电有限公司 | Early warning device for distribution switchgear based on partial discharge characteristic signal analysis |
| CN116878855A (en) * | 2023-09-06 | 2023-10-13 | 南方电网调峰调频发电有限公司储能科研院 | Twin power plant intelligent detection device based on multi-sensor data fusion |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202383540U (en) * | 2011-11-17 | 2012-08-15 | 河南省电力公司安阳供电公司 | Electric power temperature-control system |
| DE102014226849B3 (en) * | 2014-12-22 | 2016-04-07 | Siemens Aktiengesellschaft | Control cabinet with a component to be cooled arranged on an air duct |
| CN205377048U (en) * | 2015-12-29 | 2016-07-06 | 天津市三本电气设备制造有限公司 | Intelligent cubical switchboard with state of synthesis detects function |
| CN206906526U (en) * | 2016-12-30 | 2018-01-19 | 河北箱变电器有限公司 | Ring main unit shelf depreciation and temperature real time on-line monitoring system |
-
2016
- 2016-12-30 CN CN201611264350.4A patent/CN106501694B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202383540U (en) * | 2011-11-17 | 2012-08-15 | 河南省电力公司安阳供电公司 | Electric power temperature-control system |
| DE102014226849B3 (en) * | 2014-12-22 | 2016-04-07 | Siemens Aktiengesellschaft | Control cabinet with a component to be cooled arranged on an air duct |
| CN205377048U (en) * | 2015-12-29 | 2016-07-06 | 天津市三本电气设备制造有限公司 | Intelligent cubical switchboard with state of synthesis detects function |
| CN206906526U (en) * | 2016-12-30 | 2018-01-19 | 河北箱变电器有限公司 | Ring main unit shelf depreciation and temperature real time on-line monitoring system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907044A (en) * | 2019-12-12 | 2020-03-24 | 张孝军 | Wireless passive temperature monitoring system for elbow-shaped head of ring main unit |
| CN115394020A (en) * | 2022-09-20 | 2022-11-25 | 华能辛店发电有限公司 | Early warning device for distribution switchgear based on partial discharge characteristic signal analysis |
| CN115394020B (en) * | 2022-09-20 | 2024-04-02 | 华能辛店发电有限公司 | Early warning device for distribution switchgear based on partial discharge characteristic signal analysis |
| CN116878855A (en) * | 2023-09-06 | 2023-10-13 | 南方电网调峰调频发电有限公司储能科研院 | Twin power plant intelligent detection device based on multi-sensor data fusion |
| CN116878855B (en) * | 2023-09-06 | 2023-12-08 | 南方电网调峰调频发电有限公司储能科研院 | Twin power plant intelligent detection device based on multi-sensor data fusion |
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| Publication number | Publication date |
|---|---|
| CN106501694B (en) | 2019-07-02 |
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