CN117347775B - Power distribution network fault early warning device - Google Patents
Power distribution network fault early warning device Download PDFInfo
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- CN117347775B CN117347775B CN202311081660.2A CN202311081660A CN117347775B CN 117347775 B CN117347775 B CN 117347775B CN 202311081660 A CN202311081660 A CN 202311081660A CN 117347775 B CN117347775 B CN 117347775B
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- early warning
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- power distribution
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- 238000007789 sealing Methods 0.000 claims abstract description 59
- 238000001514 detection method Methods 0.000 claims description 43
- 230000002093 peripheral effect Effects 0.000 claims description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 238000001179 sorption measurement Methods 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 7
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 16
- 229960000909 sulfur hexafluoride Drugs 0.000 description 15
- 229910018503 SF6 Inorganic materials 0.000 description 13
- 238000012423 maintenance Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 238000013459 approach Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000008439 repair process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000005672 electromagnetic field Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000005291 magnetic effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005288 electromagnetic effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
Classifications
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- 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
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
-
- 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
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/088—Aspects of digital computing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention is suitable for the technical field of power distribution networks, and provides a power distribution network fault early warning device which comprises an early warning box, wherein an early warning component is arranged at the top of the early warning box in a clamping manner, the early warning component comprises a top sealing part, a plurality of early warning parts which are clamped on the top sealing part, a plurality of knife switch parts fixedly connected to the top of the top sealing part, a plurality of current breaking parts which are in sliding fit on the top sealing part and plugging parts which are in rotating fit in the early warning part, the current breaking parts are in sliding fit with the early warning parts, and the plugging parts are meshed with the current breaking parts.
Description
Technical Field
The invention relates to the technical field of power distribution networks, in particular to a power distribution network fault early warning device.
Background
The distribution network is used for distributing electric energy of a power transmission network or a regional power plant to various users through a distribution facility on site or a host machine, and classifying the electric energy into the following types according to voltage levels: high voltage distribution network, medium voltage distribution network, and low voltage distribution network; the whole distribution network is generally composed of a distribution transformer, a switch cabinet, an isolating switch, a reactive compensator, some accessory facilities and the like; and the sulfur hexafluoride has good insulating property and arc extinguishing property, and sulfur hexafluoride electrical equipment can be widely used in power distribution websites.
At present, the power distribution network fault early warning device in the market generally has the following technical problems in the using process:
the existing power distribution network fault early warning device is difficult to accurately detect the concentration of sulfur hexafluoride gas in the power distribution network in the using process, whether a circuit in the power distribution network breaks down or not is difficult to judge according to the detected value, the early warning effect is general, the specific position of the broken down circuit in the power distribution network circuit is difficult to remind maintenance personnel, and the later maintenance and repair of the circuit fault in the power distribution network are inconvenient for the maintenance personnel.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the power distribution network fault early warning device which can detect the concentration of sulfur fluoride gas in the power distribution network, judge whether electrical equipment in the power distribution network has faults according to the detected numerical value, thereby achieving the early warning effect of circuit faults of the power distribution network, and remind maintenance personnel of the circuit break faults of the power distribution network at the position, so that the maintenance personnel can maintain and repair the circuit break faults in the power distribution network at a later period.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a distribution network trouble early warning device, includes the early warning case, early warning case top joint is provided with the early warning subassembly, the early warning subassembly includes the back cover piece, and a plurality of joints are in early warning piece on the back cover piece, a plurality of fixed connection are in the knife switch piece at back cover piece top, a plurality of sliding fit are in cutout piece and the normal running fit on the back cover piece are in the inside shutoff piece of early warning piece, cutout piece and early warning piece sliding fit, the shutoff piece meshes with cutout piece.
The capping piece comprises: the top sealing plate is provided with a plurality of sliding grooves, and elastic springs are fixed inside the sliding grooves.
The early warning piece includes: the air duct, the air duct inner wall is provided with the toper cover, toper cover one end intercommunication has the shutoff ring.
The blade member includes: and an electromagnetic coil, wherein an iron core is sleeved inside the electromagnetic coil.
The current interrupter includes: the sliding rail, the sliding rail bottom is fixed with the gear strip, the sliding rail top is fixed with the L shaped plate, L shaped plate one side is fixed with the absorption cylinder, sliding rail and spout sliding fit, sliding rail one side and elastic spring one end fixed connection.
The closure comprises: the rotary drum, rotary drum periphery side is fixed with the gear, the gear is fixed with the support frame relative both sides face, two be fixed with the shutoff plectane between the support frame, shutoff plectane one side is laminated each other with shutoff ring one side.
The invention is further provided with: the blade member further includes: the switch blade switch, the switch blade switch output is connected with the current wire, switch blade switch input electricity is connected with the input wire, solenoid one end electricity is connected with the output wire, current wire one end is connected with the solenoid other end electricity.
The sealing device is characterized in that a sealing rubber ring is fixed on one side of the plugging circular plate, a sealing groove is formed in one side of the plugging ring, and the sealing rubber ring is matched with the sealing groove in a clamping manner.
The invention is further provided with: the early warning piece further includes: the gas storage box, gas storage box one side is linked together with air duct one end, the air duct other end intercommunication has the detection case, detection case one side inlays and is equipped with gas detection sensor, air duct week side intercommunication has the rectangle frame, the rectangle hole has been seted up at the rectangle frame top, rectangle hole inner wall is fixed with the pivot, knife switch bottom and detection case top welded fastening, spout inner wall is fixed with the guide cylinder, elastic spring cup joints in the guide cylinder.
And one side of the sliding rail is provided with a guide hole which is in sliding fit with the guide cylinder.
The invention is further provided with: the top sealing plate is characterized in that a plurality of first clamping holes are formed in the top of the top sealing plate, a plurality of second clamping holes are formed in one side, far away from the first clamping holes, of the top sealing plate, the first clamping holes are matched with the knife switch in a clamping mode, and the second clamping holes are matched with the gas storage tank in a clamping mode.
Two symmetrical L-shaped connecting frames are fixed on the peripheral side face of the iron core, and the bottoms of the two L-shaped connecting frames are welded and fixed with the top of the top sealing plate.
The invention is further provided with: a plurality of first thread cylinders are fixed on the peripheral side face of the top sealing plate.
A plurality of second thread barrels are fixed on the peripheral side surface of the early warning box near the top, and the first thread barrels are fixedly connected with the second thread barrels through bolts.
And a plurality of mounting lug plates are fixed on the peripheral side surface of the early warning box close to the bottom.
The invention is further provided with: the rectangular opening is formed in the outer side face of the early warning box, supporting bottom plates are fixed to the two opposite inner side walls of the early warning box, the top of the supporting bottom plates are mutually attached to the outer bottom of the gas storage box, and the top of the supporting bottom plates are mutually attached to the top of the detection box.
And a control machine disc is arranged below the rectangular opening on the outer side surface of the early warning box, and the control machine disc is electrically connected with the gas detection sensor.
The invention is further provided with: the top of the gas storage tank is communicated with a piston cylinder, a piston rod is slidably matched with the inner wall of the piston cylinder, a first hinge seat is fixed at the top of the piston rod, a rotating arm is hinged and matched inside the first hinge seat, and a hinge hole is formed in one side of the rotating arm, close to one end face, of the rotating arm.
The invention is further provided with: and a second hinge seat is fixed on one side of the L-shaped plate and is in hinge fit with the hinge hole.
The piston rod is characterized in that a rubber sleeve is fixed on the peripheral side face of the piston rod, and the inner wall of the rubber sleeve is fixedly connected with the outer wall of the piston cylinder.
The invention has the advantages that:
1. according to the invention, the adsorption acting force of the iron core on the adsorption cylinder disappears, so that the elastic spring fixed between the sliding groove and the sliding rail starts to reset, the sliding rail is driven to gradually move away from the position of the detection box, and a clockwise rotating acting force is provided for the gear through the meshing action between the gear and the gear strip, so that the whole plugging piece is driven to rotate clockwise, the plugging circular plate gradually moves away from one side of the plugging ring until the sealing rubber ring and the sealing groove are separated from each other, the early warning effect of circuit faults of the power distribution network is achieved under the detection action of the gas detection sensor, and maintenance personnel can be reminded that the circuit of the power distribution network has circuit break faults at the position, thereby facilitating the later maintenance and repair of the circuit faults in the power distribution network by the maintenance personnel.
2. According to the invention, the L-shaped plate gradually approaches to the direction of the gas storage tank at the top of the top sealing plate, so that the rotating arm hinged between the first hinging seat and the second hinging seat performs hinging rotation in a downward pressing state, the piston rod is driven to gradually press down the gas in the gas storage tank at the inner wall of the piston cylinder, the flow of sulfur hexafluoride gas in the gas storage tank to the detection tank is accelerated, the detection of sulfur hexafluoride gas concentration of a fault line at the later stage of the gas detection sensor is facilitated, the detection of sulfur hexafluoride gas concentration of a line with a power distribution network circuit fault at the later stage of the gas detection sensor is facilitated, whether the power distribution network circuit has the fault is judged according to the detected value, and a certain early warning effect can be achieved.
3. According to the invention, through the magnetic effect of the electromagnetic field, the sliding rail gradually approaches the position of the detection box in the sliding groove, the elastic spring fixed between the sliding groove and the sliding rail is stretched, a counterclockwise rotating acting force is provided for the gear, the blocking piece is driven to rotate counterclockwise on the peripheral side surface of the rotating shaft, the blocking circular plate gradually approaches to one side of the blocking ring until the sealing rubber ring and the sealing groove are mutually clamped and matched, so that the opening end of the conical cover is sealed, sulfur hexafluoride gas in the gas storage box is prevented from entering the detection box, the influence on the fault early warning of a later power distribution network is avoided, and the early warning effect is avoided under the condition that the power distribution network circuit does not have faults.
Drawings
Fig. 1 is a schematic structural diagram of a power distribution network fault early warning device according to the present invention.
Fig. 2 is a schematic diagram of an internal structure of a power distribution network fault early warning device according to the present invention.
Fig. 3 is an enlarged schematic view of the structure of fig. 2a according to the present invention.
Fig. 4 is a schematic structural diagram of the warning box of the present invention.
Fig. 5 is a schematic structural diagram of the early warning assembly of the present invention.
FIG. 6 is a schematic view of the structure of the capping member of the present invention.
Fig. 7 is a schematic diagram of the internal structure of the early warning device of the present invention.
Fig. 8 is a front view of fig. 7 of the present invention.
Fig. 9 is an enlarged schematic view of the structure of fig. 8B according to the present invention.
Fig. 10 is a schematic structural view of the knife switch of the present invention.
Fig. 11 is a schematic view of the structure of the current interrupter of the invention.
Fig. 12 is a schematic structural view of a closure of the present invention.
In the figure: 1. an early warning box; 2. an early warning component; 3. a capping member; 4. an early warning member; 5. a knife switch member; 6. a current breaking member; 7. a blocking member; 101. a second thread cylinder; 102. installing an ear plate; 103. a rectangular opening; 104. a support base plate; 105. a control panel; 301. a top sealing plate; 302. a chute; 303. an elastic spring; 304. a guide cylinder; 305. a first clamping hole; 306. a second clamping hole; 307. a first thread cylinder; 401. an air duct; 402. a conical cover; 403. a plugging ring; 404. sealing grooves; 405. a gas storage tank; 406. a detection box; 407. a gas detection sensor; 408. a rectangular frame; 409. a rectangular hole; 410. a rotating shaft; 411. a piston cylinder; 412. a piston rod; 413. a first hinge base; 414. a rotating arm; 415. a hinge hole; 416. a rubber sleeve; 501. an electromagnetic coil; 502. an iron core; 503. a knife switch; 504. a current lead; 505. an input wire; 506. an output wire; 507. an L-shaped connecting frame; 601. a slide rail; 602. a gear strip; 603. an L-shaped plate; 604. an adsorption column; 605. a guide hole; 606. the second hinge seat; 701. a rotating drum; 702. a gear; 703. a support frame; 704. plugging a circular plate; 705. and a sealing rubber ring.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.
In the present invention, unless otherwise indicated, the terms "upper" and "lower" are used generally with respect to the directions shown in the drawings, or with respect to the vertical, vertical or gravitational directions; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present invention.
Example 1
Referring to fig. 1-12, the present invention provides the following technical solutions:
The utility model provides a distribution network trouble early warning device, specifically, includes early warning case 1, and early warning case 1 top joint is provided with early warning subassembly 2, and early warning subassembly 2 includes the back cover piece 3, and a plurality of early warning pieces 4 of joint on the back cover piece 3, a plurality of knife switch pieces 5 of fixed connection in the back cover piece 3 top, a plurality of cutout pieces 6 of sliding fit on the back cover piece 3 and the shutoff piece 7 of normal running fit in the inside of early warning piece 4; the flow breaking piece 6 is in sliding fit with the early warning piece 4, and the blocking piece 7 is meshed with the flow breaking piece 6; the capping member 3 includes: the top sealing plate 301, the top of the top sealing plate 301 is provided with a plurality of sliding grooves 302, and elastic springs 303 are fixed inside the sliding grooves 302; the warning part 4 includes: the air duct 401, the inner wall of the air duct 401 is provided with a conical cover 402, one end of the conical cover 402 is communicated with a plugging ring 403; the blade 5 includes: an electromagnetic coil 501, wherein an iron core 502 is sleeved inside the electromagnetic coil 501; the current breaking member 6 includes: the sliding rail 601, the bottom of the sliding rail 601 is fixedly provided with a gear strip 602, the top of the sliding rail 601 is fixedly provided with an L-shaped plate 603, one side of the L-shaped plate 603 is fixedly provided with an adsorption cylinder 604, the sliding rail 601 is in sliding fit with the sliding groove 302, and one side of the sliding rail 601 is fixedly connected with one end of the elastic spring 303; the blocking piece 7 comprises: the rotary drum 701, the peripheral side of the rotary drum 701 is fixed with a gear 702, two opposite sides of the gear 702 are fixed with supporting frames 703, a plugging circular plate 704 is fixed between the two supporting frames 703, and one side of the plugging circular plate 704 is mutually attached to one side of the plugging ring 403; the blade 5 further comprises: the output end of the knife switch 503 is connected with a current wire 504, the input end of the knife switch 503 is electrically connected with an input wire 505, one end of the electromagnetic coil 501 is electrically connected with an output wire 506, and one end of the current wire 404 is electrically connected with the other end of the electromagnetic coil 501; a sealing rubber ring 705 is fixed on one side of the sealing circular plate 704, a sealing groove 404 is formed on one side of the sealing ring 403, and the sealing rubber ring 705 is matched with the sealing groove 404 in a clamping way; the warning part 4 further includes: the gas storage box 405, one side of the gas storage box 405 is communicated with one end of the gas guide tube 401, the other end of the gas guide tube 401 is communicated with the detection box 406, a gas detection sensor 407 is embedded in one side of the detection box 406, a rectangular frame 408 is communicated with the peripheral side face of the gas guide tube 401, a rectangular hole 409 is formed in the top of the rectangular frame 408, a rotating shaft 410 is fixed on the inner wall of the rectangular hole 409, the bottom of the knife switch 503 is welded and fixed with the top of the detection box 406, a guide cylinder 304 is fixed on the inner wall of the chute 302, and the elastic spring 303 is sleeved on the guide cylinder 304; a guide hole 605 is formed in one side of the sliding rail 601, and the guide hole 605 is in sliding fit with the guide cylinder 304.
The specific application of the first embodiment is as follows: in the initial state, the input end of a knife switch 503 of an input lead 505 in a power distribution network is electrically connected with a current lead 404 in turn, one end of the current lead 404 is electrically connected with one end of an electromagnetic coil 501, the other end of the electromagnetic coil 501 is electrically connected with an output lead 506, the whole power distribution network line is in an electrified state, therefore, the magnetic effect of the electromagnetic field still exists, an iron core 502 generates an adsorption force on an adsorption cylinder 604, a sliding rail 601 gradually approaches to the position of a detection box 406 in the sliding groove 302, and in the approaching process, an elastic spring 303 connected and fixed between the sliding groove 302 and the sliding rail 601 is simultaneously stretched, a gear strip 602 fixed at the bottom of the sliding rail 601 also gradually approaches to the direction of the detection box 406 in the stretching process, and in the approaching process, the meshing effect between a gear 702 and the gear strip 602 is utilized to provide a counterclockwise rotating acting force for the gear 702, so that the drum in the whole plugging piece 7 is driven to rotate counterclockwise on the peripheral side surface of a rotating shaft 410, the plugging piece 704 in the plugging piece 7 gradually approaches to one side of a sulfur hexafluoride ring 403 to the inner side of the sealing cover, and the sealing ring 404 is matched with the inner part of the sealing box 406 until the inner part of the sealing box of the power distribution network is sealed, and the sealing box is prevented from being influenced by the fault condition of the sealing box, and the circuit is prevented from entering the inner part of the sealing box, and the circuit is closed, and the fault condition is prevented; in addition, when the distribution network line on the knife switch 503 fails, the current flowing in the input wire 505, the knife switch 503, the current wire 404, the electromagnetic coil 501 and the output wire 506 stops flowing, the electromagnetic effect of the electro-magnetism is eliminated, at this time, the adsorption force of the iron core 502 to the adsorption cylinder 604 is eliminated, at this time, the elastic spring 303 connected and fixed between the chute 302 and the slide rail 601 has elastic reset force, so that the slide rail 601 slidingly fitted inside the chute 302 gradually moves away toward the position of the detection box 406, and during the moving away process, the gear bar 602 fixed at the bottom of the slide rail 601 also gradually moves away toward the direction of the detection box 406, during the moving away process, through the meshing action between the gear 702 and the gear bar 602, thereby providing a clockwise rotation force for the gear 702, the rotary drum 701 in the whole plugging piece 7 is driven to rotate clockwise on the peripheral side surface of the rotary shaft 410, so that the plugging circular plate 704 in the plugging piece 7 is gradually far away from one side of the plugging ring 403 until the sealing rubber ring 705 and the sealing groove 404 are mutually separated, the opening end of the conical cover 402 is in an open state, at the moment, sulfur hexafluoride gas in the gas storage tank 405 is compressed, and enters the detection tank 406 through the conical cover 402 communicated with the inside of the gas guide pipe 401 or flows into the external environment of the power distribution network, finally, the early warning effect of circuit faults of the power distribution network is achieved under the detection effect of the gas detection sensor 407, maintenance staff can be reminded of the faults in the circuit of the power distribution network, and the maintenance staff can conveniently maintain and repair the circuit faults in the power distribution network in the later period.
Example two
Referring to fig. 1-12, the second embodiment is an improvement based on the first embodiment, specifically, a plurality of first clamping holes 305 are formed on the top of the top sealing plate 301, a plurality of second clamping holes 306 are formed on one side of the top sealing plate 301 away from the first clamping holes 305, the first clamping holes 305 are in clamping fit with the knife switch 503, and the second clamping holes 306 are in clamping fit with the gas storage tank 405; two symmetrical L-shaped connecting frames 507 are fixed on the peripheral side surface of the iron core 502, and the bottoms of the two L-shaped connecting frames 507 are welded and fixed with the top of the top sealing plate 301; a plurality of first thread cylinders 307 are fixed on the peripheral side surface of the top sealing plate 301; a plurality of second thread barrels 101 are fixed on the peripheral side surface of the early warning box 1 near the top, and the first thread barrels 307 are fixedly connected with the second thread barrels 101 through bolts; a plurality of mounting ear plates 102 are fixed on the side surface of the periphery of the early warning box 1 close to the bottom; a rectangular opening 103 is formed in one outer side surface of the early warning box 1, supporting bottom plates 104 are fixed to two opposite inner side walls of the early warning box 1, the top of one supporting bottom plate 104 is mutually attached to the outer bottom of the gas storage box 405, and the top of the other supporting bottom plate 104 is mutually attached to the top of the detection box 406; a control machine disc 105 is arranged below the rectangular opening 103 on the outer side surface of the early warning box 1, and the control machine disc 105 is electrically connected with a gas detection sensor 407; the top of the gas storage tank 405 is communicated with a piston cylinder 411, a piston rod 412 is slidably matched with the inner wall of the piston cylinder 411, a first hinge seat 413 is fixed at the top of the piston rod 412, a rotating arm 414 is hinged and matched in the first hinge seat 413, and a hinge hole 415 is formed in one side of the rotating arm 414, close to one end face; a second hinge seat 606 is fixed on one side of the L-shaped plate 603, and the second hinge seat 606 is in hinge fit with the hinge hole 415; a rubber sleeve 416 is fixed on the peripheral side surface of the piston rod 412, and the inner wall of the rubber sleeve 416 is fixedly connected with the outer wall of the piston barrel 411.
The specific application of the second embodiment is as follows: in the installation process, the whole assembled device and the required circuit position in the power distribution network can be installed and fixed through bolts by a plurality of installation ear plates 102 fixed on the side surface of the periphery of the alarm box 1 close to the bottom; in use, the control panel 105 is powered by an external power source to serve as a subsequent gas detection sensor 407 (the gas detection sensor 407 may be: the pumping type sulfur hexafluoride gas detector has the specific installation and use processes of the prior art, and is not explained too much herein), and the gas detection provides additional power supply, so that the control panel 105 can perform normal operation under the condition that the whole device is powered off in a connecting line, the gas detection sensor 407 of the pumping type sulfur hexafluoride gas detector is convenient for detecting the concentration of sulfur hexafluoride gas in the line with circuit faults at the later stage, thereby achieving a certain early warning effect, and judging whether the circuit in the power distribution network has faults according to the detected values, in addition, when the circuit of the power distribution network has faults, the L-shaped plate 603 gradually approaches towards the direction of the gas storage tank 405 at the top of the top sealing plate 301, and in the approaching process, through the hinged fit between the rotating arm 414 in the first hinge seat 413 and the hinge hole 415 formed on one side of the rotating arm 414 near one end face and the second hinge seat 606, the rotating arm 414 can perform hinged rotation between the first hinge seat 413 and the second hinge seat 606 in a downward pressing state, when the rotating arm 414 performs hinged rotation between the first hinge seat 413 and the second hinge seat 606 in a downward pressing state, the piston rod 412 in the inner wall of the piston cylinder 411 is in sliding fit with the rotating arm gradually downward, so as to compress the gas in the gas storage tank 405, accelerate the speed of sulfur hexafluoride gas in the gas storage tank 405 flowing into the detection tank 406, facilitate the gas detection sensor 407 to detect the concentration of sulfur hexafluoride gas in a circuit fault line of the power distribution network in the later period, realize and detect the concentration of sulfur fluoride gas in the power distribution network, and judging whether the power distribution network circuit fails according to the detected numerical value, and playing a certain role in early warning.
It will be apparent that the embodiments described above are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (6)
1. The utility model provides a distribution network trouble early warning device, includes early warning case (1), its characterized in that: the early warning box is characterized in that an early warning assembly (2) is arranged at the top of the early warning box (1) in a clamping mode, the early warning assembly (2) comprises a top sealing piece (3), a plurality of early warning pieces (4) which are clamped on the top sealing piece (3), a plurality of knife switch pieces (5) which are fixedly connected to the top of the top sealing piece (3), a plurality of current breaking pieces (6) which are in sliding fit on the top sealing piece (3) and plugging pieces (7) which are in rotating fit inside the early warning pieces (4);
the cutoff piece (6) is in sliding fit with the early warning piece (4), and the blocking piece (7) is meshed with the cutoff piece (6);
the capping piece (3) comprises:
The sealing plate (301), wherein a plurality of sliding grooves (302) are formed in the top of the sealing plate (301), and elastic springs (303) are fixed in the sliding grooves (302);
The warning part (4) comprises:
The device comprises an air duct (401), wherein a conical cover (402) is arranged on the inner wall of the air duct (401), and one end of the conical cover (402) is communicated with a plugging ring (403);
The blade (5) comprises:
an electromagnetic coil (501), wherein an iron core (502) is sleeved inside the electromagnetic coil (501);
The current interrupter (6) comprises:
The sliding rail (601), gear strips (602) are fixed at the bottom of the sliding rail (601), an L-shaped plate (603) is fixed at the top of the sliding rail (601), an adsorption cylinder (604) is fixed on one side of the L-shaped plate (603), the sliding rail (601) is in sliding fit with the sliding groove (302), and one side of the sliding rail (601) is fixedly connected with one end of the elastic spring (303);
the closure (7) comprises:
The rotary drum (701), a gear (702) is fixed on the peripheral side surface of the rotary drum (701), supporting frames (703) are fixed on the opposite side surfaces of the gear (702), a plugging circular plate (704) is fixed between the two supporting frames (703), and one side of the plugging circular plate (704) is mutually attached to one side of the plugging ring (403);
the blade (5) further comprises:
The switch knife switch (503), the output end of the switch knife switch (503) is connected with a current wire (504), the input end of the switch knife switch (503) is electrically connected with an input wire (505), one end of the electromagnetic coil (501) is electrically connected with an output wire (506), and one end of the current wire (404) is electrically connected with the other end of the electromagnetic coil (501);
a sealing rubber ring (705) is fixed on one side of the plugging circular plate (704), a sealing groove (404) is formed in one side of the plugging ring (403), and the sealing rubber ring (705) is in clamping fit with the sealing groove (404);
the early warning part (4) further comprises:
The gas storage device comprises a gas storage tank (405), wherein one side of the gas storage tank (405) is communicated with one end of a gas guide pipe (401), the other end of the gas guide pipe (401) is communicated with a detection tank (406), a gas detection sensor (407) is embedded in one side of the detection tank (406), a rectangular frame (408) is communicated with the peripheral side surface of the gas guide pipe (401), a rectangular hole (409) is formed in the top of the rectangular frame (408), a rotating shaft (410) is fixed on the inner wall of the rectangular hole (409), and the bottom of a knife switch (503) is fixedly welded with the top of the detection tank (406);
a guide cylinder (304) is fixed on the inner wall of the chute (302), and the elastic spring (303) is sleeved on the guide cylinder (304);
A guide hole (605) is formed in one side of the sliding rail (601), and the guide hole (605) is in sliding fit with the guide cylinder (304).
2. The power distribution network fault early warning device according to claim 1, wherein: a plurality of first clamping holes (305) are formed in the top of the top sealing plate (301), a plurality of second clamping holes (306) are formed in one side, far away from the first clamping holes (305), of the top sealing plate (301), the first clamping holes (305) are matched with the knife switch (503) in a clamping mode, and the second clamping holes (306) are matched with the gas storage tank (405) in a clamping mode;
Two symmetrical L-shaped connecting frames (507) are fixed on the peripheral side face of the iron core (502), and the bottoms of the two L-shaped connecting frames (507) are welded and fixed with the top of the top sealing plate (301).
3. The power distribution network fault early warning device according to claim 2, wherein: a plurality of first thread cylinders (307) are fixed on the peripheral side surface of the top sealing plate (301);
A plurality of second thread barrels (101) are fixed on the peripheral side surface of the early warning box (1) close to the top, and the first thread barrels (307) are fixedly connected with the second thread barrels (101) through bolts;
a plurality of mounting lug plates (102) are fixed on the peripheral side surface of the early warning box (1) close to the bottom.
4. A power distribution network fault early warning device according to claim 3, characterized in that: a rectangular opening (103) is formed in one outer side face of the early warning box (1), supporting base plates (104) are fixed on two opposite inner side walls of the early warning box (1), the top of one supporting base plate (104) is mutually attached to the outer bottom of the gas storage box (405), and the top of the other supporting base plate (104) is mutually attached to the top of the detection box (406);
A control machine disc (105) is arranged below the rectangular opening (103) on the outer side surface of the early warning box (1), and the control machine disc (105) is electrically connected with the gas detection sensor (407).
5. The power distribution network fault early warning device according to claim 4, wherein: the gas storage tank is characterized in that a piston cylinder (411) is communicated with the top of the gas storage tank (405), a piston rod (412) is slidably matched with the inner wall of the piston cylinder (411), a first hinge seat (413) is fixed at the top of the piston rod (412), a rotating arm (414) is hinged and matched inside the first hinge seat (413), and a hinge hole (415) is formed in one side of the rotating arm (414) close to one end face.
6. The power distribution network fault early warning device according to claim 5, wherein: a second hinging seat (606) is fixed on one side of the L-shaped plate (603), and the second hinging seat (606) is hinged and matched with the hinging hole (415);
A rubber sleeve (416) is fixed on the peripheral side surface of the piston rod (412), and the inner wall of the rubber sleeve (416) is fixedly connected with the outer wall of the piston cylinder (411).
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| CN202311081660.2A CN117347775B (en) | 2023-08-25 | 2023-08-25 | Power distribution network fault early warning device |
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| CN117347775A (en) | 2024-01-05 |
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