CN117639277B - Intelligent operation and maintenance system for power grid based on big data fault diagnosis and detection - Google Patents
Intelligent operation and maintenance system for power grid based on big data fault diagnosis and detection Download PDFInfo
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- CN117639277B CN117639277B CN202410100732.1A CN202410100732A CN117639277B CN 117639277 B CN117639277 B CN 117639277B CN 202410100732 A CN202410100732 A CN 202410100732A CN 117639277 B CN117639277 B CN 117639277B
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Abstract
The application discloses a power grid intelligent operation and maintenance system based on big data fault diagnosis and detection, which relates to the technical field of power distribution network fault diagnosis and comprises an information acquisition unit, an analysis and diagnosis unit, a database and a management platform; the information acquisition unit is used for detecting information of the power distribution network of the factory; the analysis and diagnosis unit is used for judging whether each power utilization end normally operates after receiving the data from the information acquisition unit, analyzing and processing the power utilization ends with overload operation, and storing the corresponding data in a database according to time node sequencing; the management platform extracts past historical abnormal information and maintenance information from the database, and comprehensively evaluates and selects proper operation and maintenance teams; the method and the device have the advantages that auxiliary investigation and analysis can be carried out according to past historical maintenance records, so that the time spent in analysis and diagnosis is short, and special operation and maintenance teams can be accurately allocated for maintenance and feedback.
Description
Technical Field
The invention relates to the technical field of power distribution network fault diagnosis, in particular to a power grid intelligent operation and maintenance system based on big data fault diagnosis and detection.
Background
The power grid dispatching management refers to management of production operation of a power grid, a power grid dispatching system and personnel and job activities according to related regulations by a power grid dispatching mechanism for ensuring safe, high-quality and economical operation of the power grid, and generally comprises dispatching operation management, dispatching plan management, relay protection and safety automatic device management, power grid dispatching automation management, power communication management, reservoir dispatching management of a hydropower plant, training management of personnel of a power system and the like.
The power management department usually needs to operate and maintain the power equipment in the industrial power grid, the industrial power grid operation and maintenance system in the prior art obtains the fault location of the industrial power grid through fault data analysis, for example, the invention patent with the Chinese patent publication number of CN116599217B discloses a power distribution network intelligent diagnosis system based on big data driving, which comprises an information acquisition unit, a power supply monitoring module and a power supply diagnosis unit, wherein the information acquisition unit comprises a field monitoring module used for detecting equipment information of a power utilization end and a current on-line target piece production number in a production area of each power utilization end; the cloud platform is used for storing the protection grade labels of all the power utilization terminals; the analysis management unit is respectively connected with the information acquisition unit and the cloud platform, and is used for judging whether each power utilization end normally operates according to the power utilization load of each power utilization end in operation and analyzing and processing the power utilization ends in overload operation; the invention combines the actual power failure condition of the power utilization end and the actual condition of the production process of the factory within the allowable range, thereby avoiding the production progress delay caused by stopping the factory production when the power failure does not influence.
However, the operation and maintenance system cannot conduct auxiliary investigation and analysis according to past historical maintenance records, so that the time spent for analysis and diagnosis is long, and a special operation and maintenance team cannot be accurately allocated for maintenance and feedback.
Disclosure of Invention
The intelligent operation and maintenance system for the power grid based on the big data fault diagnosis detection solves the technical problems that the operation and maintenance system in the prior art cannot conduct auxiliary investigation and analysis according to past historical maintenance records, so that the time spent in analysis and diagnosis is long, and a special operation and maintenance team cannot be allocated accurately for maintenance and feedback; the method and the device have the advantages that auxiliary investigation and analysis can be carried out according to past historical maintenance records, so that the time spent in analysis and diagnosis is short, and special operation and maintenance teams can be accurately allocated for maintenance and feedback.
The application provides a power grid intelligent operation and maintenance system based on big data fault diagnosis and detection, which comprises an information acquisition unit, an analysis and diagnosis unit, a database and a management platform; the information acquisition unit is used for detecting information of a factory distribution network and comprises a field monitoring module and a power supply monitoring module; the analysis and diagnosis unit is used for judging whether each power utilization end operates normally according to the power utilization load of each power utilization end in operation after receiving the data from the information acquisition unit, analyzing and processing the power utilization end in overload operation, and sequencing and storing the corresponding data in a database according to time nodes; if the analysis and diagnosis unit judges that the information of the electricity utilization end is abnormal, the real-time information of the abnormal electricity utilization end is uploaded to the management platform, the management platform extracts past historical abnormal information and maintenance information from the database according to the position of the abnormal electricity utilization end, comprehensively evaluates and selects a proper operation and maintenance team according to the real-time information, the historical abnormal information and the maintenance information of the abnormal electricity utilization end, and sends the information to a user terminal of the operation and maintenance team.
Further, the power supply monitoring module comprises an intelligent power monitoring instrument, a power distribution cabinet and lightning protection device monitoring equipment, wherein the intelligent power monitoring instrument is connected with the power utilization end and is used for detecting equipment information of the power utilization end, and the intelligent power monitoring instrument comprises actual running current of a power supply bus of the power utilization end, the number of electric equipment with the current temperature greater than a preset temperature threshold value in the power utilization end and actual running power of the power utilization end; the lightning protection device monitoring equipment is used for monitoring the running condition of the lightning protection device; the field monitoring module comprises infrared temperature monitoring equipment, infrared camera shooting equipment and abnormal gas monitoring equipment, wherein the infrared temperature monitoring equipment, the infrared camera shooting equipment and the abnormal gas monitoring equipment are distributed in the use area of each electricity utilization end, the infrared temperature monitoring equipment is used for detecting the temperature condition of the electricity utilization end, the infrared camera shooting equipment is used for monitoring the electricity utilization end in real time, and the abnormal gas monitoring equipment is used for detecting whether dangerous gas exists in the electricity utilization end area; the power distribution cabinet comprises a box body, wherein the whole box body is a hollow cuboid, and a sealing door is arranged on the box body; radiating holes for radiating are formed in two ends of the top of the box body, and a plurality of intelligent power monitoring meters, a plurality of lightning protection devices and a plurality of circuit protection switches are mounted in the box body.
Further, the box body further comprises a baffle, a telescopic rod and a connecting rope; the baffle corresponds to the radiating holes, and the whole baffle is a rectangular plate; the telescopic rods are fixed on the inner wall of the box body, at least two telescopic rods are fixed on one baffle plate, and the telescopic rods are positioned between the corresponding baffle plates and the heat dissipation holes; the telescopic rod can stretch along the horizontal direction, a gap exists between the baffle plate and the radiating hole when the telescopic rod stretches, and the baffle plate blocks the radiating hole when the telescopic rod is in the shortest state; a connecting rope is fixed between the two baffles, and the length of the connecting rope is smaller than the linear distance between the two radiating holes, so that the baffles can not block the radiating holes in an initial state;
Further, the power distribution cabinet further comprises a built-in bag, a fixed block, a falling block and an electric shock switch; the whole built-in bag is a hollow cuboid with an opening at the upper end, and the side walls at the two ends of the built-in bag are respectively fixed on the two baffles; the connecting rope penetrates through the built-in bag and is fixedly connected with the built-in bag; the upper end opening of the built-in bag is fixed on the top end inner wall of the box body, so that the built-in bag and the top end inner wall of the box body form a closed space, and the space is a fire extinguishing cavity; the electric shock switch is positioned below the built-in bag, the fixed block and the falling block are both positioned in the fire extinguishing cavity, the fixed block is fixed on the inner wall of the top end of the box body, and the fixed block is positioned above the electric shock switch; the falling block is positioned below the fixed block, and a fixed magnetic layer and a falling magnetic layer are respectively fixed on the opposite surfaces of the fixed block and the falling block; at least two limiting rods are vertically fixed at the lower end of the fixed block, the limiting rods penetrate through the falling blocks, and the limiting rods are in sliding connection with the falling blocks; an inserting sheet is fixed at the bottom end of the falling block; the interior of the fire extinguishing cavity is filled with carbon dioxide gas.
Further, a rope groove is formed in one end, far away from the fixed block, of the limiting rod, and the connecting rope penetrates through the rope groove to limit the connecting rope; the material of the built-in bag is plastic, and the connecting rope is a nylon rope; the whole inserting piece is strip-shaped, and the length direction of the inserting piece is vertical to the length direction of the connecting rope; the bottom end of the inserting piece is a sharp blade end.
Further, the electric shock switch comprises a first contact and a second contact, wherein the first contact and the second contact are both fixed on the side inner wall of the box body, and the first contact and the second contact are elastically abutted; the first contact and the second contact are communicated with the distribution box bus, so that the distribution box can be disconnected after the first contact and the second contact are disconnected; the first contact and the second contact are distributed along the length direction of the connecting rope, and the inserting sheet is positioned above a gap between the first contact and the second contact; the height value of the inserting sheet in the initial state is larger than the vertical distance value between the connecting rope and the electric shock switch, so that the inserting sheet can be inserted between the first contact and the second contact after falling.
Further, the power distribution cabinet further comprises an I-shaped connecting piece; the whole I-shaped connecting piece is of an I-shaped structure which is vertically arranged, the upper half part of the I-shaped connecting piece is embedded in the fixed block in the initial state, and the lower half part of the I-shaped connecting piece is embedded in the falling block; the outer surface layer of the I-shaped connecting piece is an outer film made of plastic, an inner medium is filled in the outer film, the inner medium is a solid phase change material at normal temperature, the melting point temperature of the inner medium is 70-110 ℃, and the melting point of the outer film is larger than that of the inner medium; the fixed magnetic layer and the falling magnetic layer repel each other, and the fixed block and the falling block are attached together under the limit of the I-shaped connecting piece in a normal temperature state.
Further, still be fixed with the stay cord on the electric shock switch, the quantity of stay cord is two, and two stay cords are fixed respectively in the one end that contact one and contact two kept away from each other, and the one end that the electric shock switch was kept away from to the stay cord is fixed on its corresponding baffle that is close to for after two baffles kept away from each other, two stay cords can pull contact one and contact two keep away from each other.
Further, a first paraffin block, a second paraffin block and a bearing plate are arranged in the top end of the outer membrane; the bearing plate is horizontally fixed at the top end of the outer film, and the first paraffin block and the second paraffin block are both positioned at the upper end of the bearing plate; the bearing plate is positioned at the upper end of the inner medium; the first paraffin block and the second paraffin block are arranged adjacently, and the first paraffin block and the second paraffin block are hollow structures; the paraffin blocks I and II are both made of paraffin, and the melting point of the paraffin is 5-8 ℃ lower than that of the internal medium; the bearing plate is made of hard plastic, and the melting point of the bearing plate is higher than that of the outer film; the bearing plate is provided with a plurality of openings; and the first paraffin block is filled with sodium bicarbonate powder, and the second paraffin block is filled with boric acid powder.
Further, both ends of the top end of the outer membrane are fixed with side magnets, and the two side magnets are mutually magnetically attracted; one of the side magnets is positioned at one side of the paraffin block I, which is far away from the paraffin block II, and the other side of the paraffin block II, which is far away from the paraffin block I.
One or more technical schemes provided by the application have at least the following technical effects or advantages:
By providing a power grid intelligent operation and maintenance system comprising a database and a management platform and based on big data fault diagnosis and detection; the analysis and diagnosis unit is used for judging whether each power utilization end normally operates after receiving the data from the information acquisition unit, analyzing and processing the power utilization ends with overload operation, and storing the corresponding data in a database according to time node sequencing; the management platform extracts past historical abnormal information and maintenance information from the database, and comprehensively evaluates and selects proper operation and maintenance teams; the operation and maintenance system effectively solves the technical problems that an operation and maintenance system in the prior art cannot conduct auxiliary investigation and analysis according to past historical maintenance records, so that the time spent in analysis and diagnosis is long, and a special operation and maintenance team cannot be accurately allocated for maintenance and feedback; and further, the auxiliary investigation and analysis can be performed according to the past history maintenance records, so that the time spent in analysis and diagnosis is shorter, and the technical effects of more accurately dispatching special operation and maintenance teams to perform maintenance and feedback are achieved.
Drawings
FIG. 1 is a schematic diagram of the system connection relationship of the intelligent operation and maintenance system of the power grid based on big data fault diagnosis and detection;
FIG. 2 is a schematic diagram of an information acquisition unit of the intelligent operation and maintenance system of the power grid based on big data fault diagnosis and detection;
FIG. 3 is a schematic diagram of a power supply monitoring module of the intelligent operation and maintenance system of the power grid based on big data fault diagnosis and detection;
Fig. 4 is a schematic diagram of the appearance of a power distribution cabinet of the intelligent operation and maintenance system of the power grid based on big data fault diagnosis and detection;
FIG. 5 is a schematic diagram of a power distribution cabinet of the intelligent operation and maintenance system of the power grid based on big data fault diagnosis and detection;
FIG. 6 is a schematic diagram of a falling block structure of the intelligent operation and maintenance system of the power grid based on big data fault diagnosis and detection;
FIG. 7 is a schematic diagram of the intelligent operation and maintenance system of the power grid based on big data fault diagnosis and detection after the built-in bag is broken;
FIG. 8 is a schematic diagram of the position of an I-shaped connector of the intelligent operation and maintenance system of the power grid based on the fault diagnosis and detection of big data;
FIG. 9 is a schematic diagram of the internal medium position of the intelligent operation and maintenance system of the power grid based on big data fault diagnosis and detection;
FIG. 10 is a schematic diagram of an I-shaped connector when a falling block of the intelligent operation and maintenance system of the power grid based on big data fault diagnosis detection of the invention falls;
FIG. 11 is a schematic diagram of the position of a pull rope of the intelligent operation and maintenance system of the power grid based on big data fault diagnosis and detection;
FIG. 12 is a schematic diagram of an I-shaped connector structure of the intelligent operation and maintenance system of the power grid based on big data fault diagnosis and detection;
FIG. 13 is a schematic diagram of the first and second paraffin blocks of the intelligent operation and maintenance system of the power grid based on big data fault diagnosis and detection;
Fig. 14 is a schematic diagram of a side magnet position of the intelligent operation and maintenance system of the power grid based on big data fault diagnosis and detection.
In the figure:
The box body 100, the heat dissipation holes 110, the baffle plate 120, the telescopic rod 130, the connecting rope 140, the built-in bag 200, the fixed block 300, the limiting rod 310, the falling block 400, the inserting piece 410, the electric shock switch 500, the pull rope 510, the I-shaped connecting piece 600, the outer film 610, the inner medium 620, the paraffin block I630, the sodium bicarbonate powder 631, the paraffin block II 640, the boric acid powder 641, the bearing plate 650 and the side magnet 660.
Detailed Description
In order that the application may be readily understood, a more complete description of the application will be rendered by reference to the appended drawings; the preferred embodiments of the present application are illustrated in the drawings, but the present application can be embodied in many different forms and is not limited to the embodiments described herein; rather, these embodiments are provided so that this disclosure will be thorough and complete.
It should be noted that the terms "vertical", "horizontal", "upper", "lower", "left", "right", and the like are used herein for illustrative purposes only and do not represent the only embodiment.
Unless defined otherwise, 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 invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Embodiment one: as shown in FIG. 1, the intelligent operation and maintenance system of the power grid based on the big data fault diagnosis detection comprises an information acquisition unit, an analysis and diagnosis unit, a database and a management platform; the information acquisition unit is used for detecting information of a factory distribution network and comprises a field monitoring module and a power supply monitoring module; the analysis and diagnosis unit is used for judging whether each power utilization end operates normally according to the power utilization load of each power utilization end in operation after receiving the data from the information acquisition unit, analyzing and processing the power utilization end in overload operation, and sequencing and storing the corresponding data in a database according to time nodes; if the analysis and diagnosis unit judges that the information of the electricity utilization end is abnormal, the real-time information of the abnormal electricity utilization end is uploaded to the management platform, the management platform extracts past historical abnormal information and maintenance information from the database according to the position of the abnormal electricity utilization end, comprehensively evaluates and selects a proper operation and maintenance team according to the real-time information, the historical abnormal information and the maintenance information of the abnormal electricity utilization end, and sends the information to a user terminal of the operation and maintenance team.
Specifically, through setting up the database, the past fault data of electric wire netting and fortune dimension data are stored to carry out the priority and sort the sign according to fault occurrence frequency, fault level and fault occurrence position, auxiliary analysis diagnosis unit carries out fault diagnosis, and send corresponding historical fault information to the management platform, and the management platform is according to the diagnosis information comprehensive comparison that historical fault information and analysis diagnosis unit obtained, and then dispatch suitable fortune dimension team, fortune dimension team can carry out comprehensive consideration according to historical fault information and diagnosis information, and the maintenance process is reduced, and fortune dimension system's processing efficiency is higher.
As shown in fig. 2 and fig. 3, the power supply monitoring module comprises an intelligent power monitoring instrument, a power distribution cabinet and lightning protection device monitoring equipment, wherein the intelligent power monitoring instrument is connected with the power utilization end and is used for detecting equipment information of the power utilization end, and the intelligent power monitoring instrument comprises actual running current of a power supply bus of the power utilization end, the number of electric equipment with the current temperature greater than a preset temperature threshold value in the power utilization end and actual running power of the power utilization end; the lightning protection device monitoring equipment is used for monitoring the running condition of the lightning protection device; the field monitoring module comprises infrared temperature monitoring equipment, infrared camera shooting equipment and abnormal gas monitoring equipment, wherein the infrared temperature monitoring equipment, the infrared camera shooting equipment and the abnormal gas monitoring equipment are distributed in the use area of each electricity utilization end, the infrared temperature monitoring equipment is used for detecting the temperature condition of the electricity utilization end, the infrared camera shooting equipment is used for monitoring the electricity utilization end in real time, and the abnormal gas monitoring equipment is used for detecting whether dangerous gas occurs in the electricity utilization end area.
As shown in fig. 4, the power distribution cabinet includes a box 100, the box 100 is a hollow cuboid, and a sealing door is provided on the box 100; the radiating holes 110 for radiating are formed in the two ends of the top of the box body 100, and a plurality of intelligent power monitoring meters, a plurality of lightning protection devices and a plurality of circuit protection switches are installed in the box body 100.
Preferably, a part of the lightning protection device is installed in the power distribution cabinet to protect equipment in the cabinet from lightning overvoltage and transient overvoltage; meanwhile, the lightning protection device in the power distribution cabinet can also carry out lightning protection on the power line and the signal line which enter the cabinet, so that the safe and stable operation of the power distribution system is ensured; a part of the lightning protection device is used for protecting an independent power utilization end, is arranged at the front end of protected equipment, such as a position before a power line, a signal line and the like enter the equipment, and can effectively prevent damage to the equipment caused by lightning overvoltage and transient overvoltage and protect the safe and stable operation of the equipment.
The technical scheme provided by the embodiment of the application at least has the following technical effects or advantages:
The method and the device have the advantages that auxiliary investigation and analysis can be carried out according to past historical maintenance records, so that the time spent in analysis and diagnosis is short, and special operation and maintenance teams can be accurately allocated for maintenance and feedback.
Embodiment two: in the above embodiment, if the power distribution cabinet is in an abnormal state such as high temperature or fire during use, the power is required to be cut off after being analyzed by the analysis and diagnosis unit, a certain requirement is provided for the signal transmission speed, and a certain delay may exist during the information transmission process, so that the power distribution cabinet is not powered off timely; the embodiment of the application is optimized to a certain extent on the basis of the embodiment.
As shown in fig. 5 and 6, the case 100 further includes a baffle 120, a telescopic rod 130, and a connection string 140; the baffle 120 corresponds to the heat dissipation holes 110, and the baffle 120 is a rectangular plate as a whole; the telescopic rods 130 are fixed on the inner wall of the box body 100, at least two telescopic rods 130 are fixed on one baffle plate 120, and the telescopic rods 130 are positioned between the corresponding baffle plates 120 and the heat dissipation holes 110; the telescopic rod 130 can extend and retract along the horizontal direction, a gap exists between the baffle plate 120 and the heat dissipation hole 110 when the telescopic rod 130 extends, and the baffle plate 120 blocks the heat dissipation hole 110 when the telescopic rod 130 is in the shortest state; a connecting rope 140 is fixed between the two baffles 120, and the length of the connecting rope 140 is smaller than the linear distance between the two heat dissipation holes 110, so that the baffles 120 cannot block the heat dissipation holes 110 in the initial state; the power distribution cabinet further comprises a built-in bag 200, a fixed block 300, a falling block 400 and an electric shock switch 500; the whole built-in bag 200 is a hollow cuboid with an opening at the upper end, and the side walls at the two ends of the built-in bag 200 are respectively fixed on the two baffles 120; the connecting rope 140 passes through the built-in bag 200, and the connecting rope 140 is fixedly connected with the built-in bag 200; the upper end opening of the built-in bag 200 is fixed on the top end inner wall of the box body 100, so that the built-in bag 200 and the top end inner wall of the box body 100 form a closed space, and the space is a fire extinguishing cavity; the electric shock switch 500 is positioned below the built-in bag 200, the electric shock switch 500 comprises a first contact and a second contact, the first contact and the second contact are both fixed on the side inner wall of the box body 100, and the first contact and the second contact are elastically abutted; the first contact and the second contact are communicated with the distribution box bus, so that the distribution box can be disconnected after the first contact and the second contact are disconnected; the fixed block 300 and the falling block 400 are both positioned in the fire extinguishing cavity, the whole fixed block 300 is a cuboid, the fixed block 300 is fixed on the inner wall of the top end of the box body 100, and the fixed block 300 is positioned above the electric shock switch 500; the whole falling block 400 is a cuboid, the falling block 400 is positioned below the fixed block 300, a fixed magnetic layer (not shown in the figure) and a falling magnetic layer (not shown in the figure) are respectively fixed on opposite surfaces of the fixed block 300 and the falling block 400, and the fixed magnetic layer and the falling magnetic layer are mutually magnetically attracted, so that the fixed block 300 and the falling block 400 are magnetically attracted together in an initial state; at least two limiting rods 310 are vertically fixed at the lower end of the fixed block 300, the limiting rods 310 penetrate through the falling blocks 400, and the limiting rods 310 are in sliding connection with the falling blocks 400; a rope groove (not shown) is formed at one end of the limiting rod 310, which is far away from the fixed block 300, and the connecting rope 140 passes through the rope groove to limit the connecting rope 140; an insert 410 is fixed at the bottom end of the falling block 400, the insert 410 is integrally elongated, and the length direction of the insert 410 is perpendicular to the length direction of the connecting rope 140; the bottom end of the insert 410 is a sharp blade end, the telescopic rod 130 is an elastic telescopic piece, and the telescopic rod 130 is in a shortened state when no external force is applied; the interior of the fire extinguishing cavity is filled with carbon dioxide gas.
Preferably, the material of the inner bag 200 is plastic, and the connecting string 140 is nylon string.
As shown in fig. 6 and 7, the first and second contacts are distributed along the length direction of the connecting rope 140, and the insert 410 is located above the gap between the first and second contacts; the height value of the insert 410 in the initial state is greater than the vertical distance value between the connecting rope 140 and the electric shock switch 500, so that the insert 410 can be inserted between the first contact and the second contact after falling; after the internal temperature of the power distribution cabinet rises, the fixed magnetic layer and the falling magnetic layer are weakened by the magnetism influenced by the temperature, when a fire accident happens in the power distribution cabinet, the fixed magnetic layer and the falling magnetic layer heat up to a temperature that is smaller than the gravity of the falling block 400, the falling block 400 drives the inserting sheet 410 to fall along the limiting rod 310, at the moment, the inserting sheet 410 cuts off the connecting rope 140 and the built-in bag 200 in a short time and is inserted between the contact I and the contact II, and the two baffles 120 are mutually far away and block the heat dissipation holes 110 when the inserting sheet 410 cuts off the connecting rope 140, so that the box 100 has a certain sealing effect and achieves the effect of extinguishing asphyxia; when the insert 410 cuts off the built-in bag 200, carbon dioxide gas in the fire extinguishing chamber escapes to the lower part to extinguish fire, and the baffle 120 can enlarge the opening of the built-in bag 200; the insert 410 is inserted between the first contact and the second contact, so that the electric shock switch 500 is in an open state, and the power distribution cabinet realizes physical circuit breaking.
The technical scheme provided by the embodiment of the application at least has the following technical effects or advantages:
1. by arranging the falling block 400 and the connecting rope 140, after the falling block 400 falls and the inserting sheet 410 cuts off the connecting rope 140, the baffle 120 blocks the heat dissipation holes 110, so that new oxygen is difficult to enter into the box body 100, the probability of spontaneous combustion and the spontaneous combustion duration are reduced, the inserting sheet 410 can cut the built-in bag 200 continuously, carbon dioxide gas in the built-in bag 200 is dispersed, fire extinguishing treatment is further carried out on a fire point, and electric elements in the power distribution cabinet are positioned below the built-in bag 200, and the carbon dioxide escapes downwards;
2. The baffle 120 is fixed with the built-in bag 200, when the baffle 120 covers the heat radiation holes 110, the opening of the built-in bag 200 is enlarged, so that the carbon dioxide can escape faster, and the fire extinguishing efficiency is better;
3. The falling block 400 is inserted into the electric shock switch 500 after the falling insert 410, so that the power distribution cabinet is disconnected, and the power distribution cabinet is controlled by combining a physical breaking mode with a data control mode, so that the reliability is higher.
Embodiment III: in the above embodiment, the position relationship between the fixed block 300 and the falling block 400 is not controllable, and is greatly affected by the outside, and when the power distribution cabinet is rocked, the falling block 400 may fall; the embodiment of the application is optimized to a certain extent on the basis of the embodiment.
As shown in fig. 8 and 9, the power distribution cabinet further includes an i-shaped connector 600; the whole of the i-shaped connecting piece 600 is of an i-shaped structure which is vertically arranged, and the upper half part of the i-shaped connecting piece 600 is embedded in the fixed block 300 in the initial state, and the lower half part of the i-shaped connecting piece 600 is embedded in the falling block 400; the outer surface layer of the i-shaped connector 600 is an outer film 610 made of plastic, the inner film 610 is filled with an inner medium 620, the inner medium 620 is a solid phase change material at normal temperature, the melting point temperature of the inner medium 620 is 70-110 ℃, and the melting point of the outer film 610 is greater than that of the inner medium 620; the fixed magnetic layer and the falling magnetic layer repel each other, and the fixed block 300 and the falling block 400 are attached together under the limit of the i-shaped connector 600 in a normal temperature state.
Preferably, the middle position of the outer film 610 is provided with an easy-tearing edge seal.
As shown in fig. 8 and 10, when a fire accident occurs in the distribution box, the internal medium 620 melts, at this time, the i-shaped connector 600 is pulled and separated into two parts under the repulsive force between the fixed magnetic layer and the falling magnetic layer and the gravity action of the falling block 400, and the falling block 400 drives the inserting sheet 410 to fall along the limiting rod 310.
Further, as shown in fig. 11, the electric shock switch 500 is further fixed with two pull ropes 510, the two pull ropes 510 are respectively fixed at one ends of the first contact and the second contact, which are far away from each other, and one end of the pull rope 510, which is far away from the electric shock switch 500, is fixed on the corresponding baffle 120, which is close to the pull rope, so that after the two baffles 120 are far away from each other, the two pull ropes 510 can pull the first contact and the second contact to be far away from each other.
The technical scheme provided by the embodiment of the application at least has the following technical effects or advantages:
1. By arranging the I-shaped connecting piece 600, the I-shaped connecting piece 600 limits the fixed block 300 and the falling block 400 in a normal state, the internal medium 620 melts and softens in a high-temperature state, and at the moment, the I-shaped connecting piece 600 is disconnected by external force, so that the falling block 400 can fall down, the reaction is more sensitive and effective, and the influence of factors such as external force and the like is reduced;
2. The repulsion between the falling block 400 and the fixed block 300 makes the acceleration of the falling block 400 under the action of gravity and repulsive force faster, and the connection rope 140 and the built-in bag 200 are easier to be cut off by the inserting sheet 410;
3. through setting up stay cord 510 for stay cord 510 can pull the bottom of electric shock switch 500 when baffle 120 removes makes it separate, then insert piece 410 inserts electric shock switch 500's top position, makes electric shock switch 500 more thorough when breaking off, and the probability that appears the virtual joint or break off is incomplete is less.
Embodiment four: when the carbon dioxide is used for extinguishing fire in the embodiment, because the volume of the built-in bag 200 is limited, less carbon dioxide can be stored, and the carbon dioxide can possibly escape when the carbon dioxide is stored for too long, so that a better effect can not be achieved when the carbon dioxide is used later; the embodiment of the application is optimized to a certain extent on the basis of the embodiment.
As shown in fig. 12 and 13, a first paraffin block 630, a second paraffin block 640 and a carrier plate 650 are disposed inside the top end of the outer film 610; the bearing plate 650 is horizontally fixed at the top end of the outer membrane 610, and the first paraffin block 630 and the second paraffin block 640 are both positioned at the upper end of the bearing plate 650; the bearing plate 650 is positioned at the upper end of the inner medium 620; the first paraffin block 630 and the second paraffin block 640 are adjacently arranged, and the first paraffin block 630 and the second paraffin block 640 are hollow structures; the first paraffin block 630 and the second paraffin block 640 are both made of paraffin, and the melting point of the paraffin is 5-8 ℃ lower than that of the inner medium 620; the material of the bearing plate 650 is hard plastic, and the melting point of the bearing plate 650 is higher than that of the outer film 610; the bearing plate 650 is provided with a plurality of holes (not shown in the figure); sodium bicarbonate powder 631 is filled in the first paraffin block 630, and boric acid powder 641 is filled in the second paraffin block 640; the sodium bicarbonate powder 631 can be decomposed into sodium carbonate, water and carbon dioxide gas by heat, and both the sodium bicarbonate powder 631 and the sodium carbonate can be mixed with the boric acid powder 641 to react and generate carbon dioxide gas, which is a prior art and is not described herein.
Preferably, the mass ratio of the sodium bicarbonate powder 631 to the boric acid powder 641 is 2:1.
Further, as shown in fig. 14, side magnets 660 are fixed at both ends of the top end of the outer film 610, and the two side magnets 660 are magnetically attracted to each other; one of the side magnets 660 is located on a side of the first paraffin block 630 away from the second paraffin block 640, and the other side of the second paraffin block 640 away from the first paraffin block 630.
The technical scheme provided by the embodiment of the application at least has the following technical effects or advantages:
1. By arranging the first paraffin block 630, sodium bicarbonate powder 631 is stored in the first paraffin block 630, the melting point of the first paraffin block 630 is 10 ℃ lower than that of the internal medium 620, sodium bicarbonate can be decomposed into sodium carbonate, water and carbon dioxide gas by heat, the generated carbon dioxide gas enables the internal pressure of the first paraffin block 630 to be increased, the disconnection process of the I-shaped connecting piece 600 is further accelerated, and then the carbon dioxide gas participates in the fire extinguishing protection process;
2. By arranging the second paraffin block 640, boric acid powder 641 is stored in the second paraffin block 640, and after the first paraffin block 630 and the second paraffin block 640 are melted, boric acid reacts with sodium carbonate and sodium bicarbonate to generate carbon dioxide gas, so that the amount of the carbon dioxide gas is large, and the fire extinguishing duration time is long;
3. By arranging the side magnet 660, after the paraffin block I630 and the paraffin block II 640 are melted, the side magnet 660 attracts each other, the sodium bicarbonate powder 631 in the paraffin block I630 and the boric acid powder 641 in the paraffin block II 640 are extruded to be fully contacted and reacted, the reaction degree is more intense and rapid, and the efficiency of generating carbon dioxide is higher.
The above is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention will be apparent to 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.
Claims (7)
1. The intelligent operation and maintenance system for the power grid based on the big data fault diagnosis detection is characterized by comprising an information acquisition unit, an analysis and diagnosis unit, a database and a management platform; the information acquisition unit is used for detecting information of a factory distribution network and comprises a field monitoring module and a power supply monitoring module; the analysis and diagnosis unit is used for judging whether each power utilization end operates normally according to the power utilization load of each power utilization end in operation after receiving the data from the information acquisition unit, analyzing and processing the power utilization end in overload operation, and sequencing and storing the corresponding data in a database according to time nodes; if the analysis and diagnosis unit judges that the information of the electricity utilization end is abnormal, uploading the real-time information of the abnormal electricity utilization end to a management platform, extracting past historical abnormal information and maintenance information from a database by the management platform according to the position of the abnormal electricity utilization end, comprehensively evaluating and selecting a proper operation and maintenance team according to the real-time information, the historical abnormal information and the maintenance information of the abnormal electricity utilization end, and transmitting the information to a user terminal of the operation and maintenance team; the power supply monitoring module comprises an intelligent power monitoring instrument, a power distribution cabinet and lightning protection device monitoring equipment, wherein the intelligent power monitoring instrument is connected with the power utilization end and used for detecting equipment information of the power utilization end, and the intelligent power monitoring instrument comprises actual running current of a power supply bus of the power utilization end, the number of electric equipment with the current temperature greater than a preset temperature threshold value in the power utilization end and actual running power of the power utilization end; the lightning protection device monitoring equipment is used for monitoring the running condition of the lightning protection device; the field monitoring module comprises infrared temperature monitoring equipment, infrared camera shooting equipment and abnormal gas monitoring equipment, wherein the infrared temperature monitoring equipment, the infrared camera shooting equipment and the abnormal gas monitoring equipment are distributed in the use area of each electricity utilization end, the infrared temperature monitoring equipment is used for detecting the temperature condition of the electricity utilization end, the infrared camera shooting equipment is used for monitoring the electricity utilization end in real time, and the abnormal gas monitoring equipment is used for detecting whether dangerous gas exists in the electricity utilization end area;
The power distribution cabinet comprises a box body (100), wherein the whole box body (100) is a hollow cuboid, and a sealing door is arranged on the box body (100); radiating holes (110) for radiating are formed in two ends of the top of the box body (100), and a plurality of intelligent power monitoring meters, a plurality of lightning protection devices and a plurality of circuit protection switches are arranged in the box body (100);
The box body (100) further comprises a baffle (120), a telescopic rod (130) and a connecting rope (140); the baffle plate (120) corresponds to the radiating holes (110), and the baffle plate (120) is integrally a rectangular plate; the telescopic rods (130) are fixed on the inner wall of the box body (100), at least two telescopic rods (130) are fixed on one baffle plate (120), and the telescopic rods (130) are positioned between the corresponding baffle plates (120) and the heat dissipation holes (110); the telescopic rod (130) can stretch in the horizontal direction, a gap exists between the baffle plate (120) and the radiating hole (110) when the telescopic rod (130) stretches, and when the telescopic rod (130) is in the shortest state, the baffle plate (120) blocks the radiating hole (110); a connecting rope (140) is fixed between the two baffles (120), and the length of the connecting rope (140) is smaller than the linear distance between the two heat dissipation holes (110), so that the baffles (120) can not block the heat dissipation holes (110) in an initial state;
The power distribution cabinet further comprises a built-in bag (200), a fixed block (300), a falling block (400) and an electric shock switch (500); the whole built-in bag (200) is a hollow cuboid with an opening at the upper end, and the side walls at the two ends of the built-in bag (200) are respectively fixed on the two baffles (120); the connecting rope (140) penetrates through the built-in bag (200), and the connecting rope (140) is fixedly connected with the built-in bag (200); the upper end opening of the built-in bag (200) is fixed on the top end inner wall of the box body (100), so that the built-in bag (200) and the top end inner wall of the box body (100) form a closed space, and the space is a fire extinguishing cavity; the electric shock switch (500) is positioned below the built-in bag (200), the fixed block (300) and the falling block (400) are both positioned in the fire extinguishing cavity, the fixed block (300) is fixed on the inner wall of the top end of the box body (100), and the fixed block (300) is positioned above the electric shock switch (500); the falling block (400) is positioned below the fixed block (300), and a fixed magnetic layer and a falling magnetic layer are respectively fixed on the opposite surfaces of the fixed block (300) and the falling block (400); at least two limiting rods (310) are vertically fixed at the lower end of the fixed block (300), the limiting rods (310) penetrate through the falling blocks (400), and the limiting rods (310) are in sliding connection with the falling blocks (400); an inserting sheet (410) is fixed at the bottom end of the falling block (400); the interior of the fire extinguishing cavity is filled with carbon dioxide gas.
2. The intelligent operation and maintenance system for the power grid based on the fault diagnosis and detection of big data according to claim 1, wherein a rope groove is formed at one end of the limiting rod (310) far away from the fixed block (300), and the connecting rope (140) passes through the rope groove to limit the connecting rope (140); the material of the built-in bag (200) is plastic, and the connecting rope (140) is a nylon rope; the whole inserting piece (410) is long, and the length direction of the inserting piece (410) is perpendicular to the length direction of the connecting rope (140); the bottom end of the inserting piece (410) is a sharp blade end.
3. The intelligent operation and maintenance system for the power grid based on the diagnosis and detection of the big data fault according to claim 1, wherein the electric shock switch (500) comprises a first contact and a second contact, both of which are fixed on the side inner wall of the box body (100) and elastically abut against each other; the first contact and the second contact are communicated with the distribution box bus, so that the distribution box can be disconnected after the first contact and the second contact are disconnected; the first contact and the second contact are distributed along the length direction of the connecting rope (140), and the inserting sheet (410) is positioned above a gap between the first contact and the second contact; the height value of the inserting sheet (410) in the initial state is larger than the vertical distance value between the connecting rope (140) and the electric shock switch (500), so that the inserting sheet (410) can be inserted between the first contact and the second contact after falling.
4. The grid intelligent operation and maintenance system based on big data fault diagnosis and detection according to claim 1, wherein the power distribution cabinet further comprises an i-shaped connector (600); the whole I-shaped connecting piece (600) is of an I-shaped structure which is vertically arranged, the upper half part of the I-shaped connecting piece (600) is embedded in the fixed block (300) in the initial state, and the lower half part of the I-shaped connecting piece (600) is embedded in the falling block (400); the outer surface layer of the I-shaped connecting piece (600) is an outer film (610) made of plastic, the inner part of the outer film (610) is filled with an inner medium (620), the inner medium (620) is a solid phase change material at normal temperature, the melting point temperature of the inner medium (620) is 70-110 ℃, and the melting point of the outer film (610) is larger than that of the inner medium (620); the fixed magnetic layer and the falling magnetic layer repel each other, and the fixed block (300) and the falling block (400) are attached together under the limit of the I-shaped connecting piece (600) at normal temperature.
5. The intelligent operation and maintenance system for the power grid based on the big data fault diagnosis and detection according to claim 4, wherein the number of the pull ropes (510) is two, the two pull ropes (510) are respectively fixed at one end of the contact one and one end of the contact two which are far away from each other, and one end of the pull rope (510) far away from the electric shock switch (500) is fixed on the corresponding baffle plate (120) which is close to the pull rope, so that after the two baffle plates (120) are far away from each other, the two pull ropes (510) can pull the contact one and the contact two to be far away from each other.
6. The intelligent operation and maintenance system for the power grid based on the fault diagnosis and detection of big data according to claim 4, wherein a first paraffin block (630), a second paraffin block (640) and a bearing plate (650) are arranged inside the top end of the outer film (610); the bearing plate (650) is horizontally fixed at the top end of the outer membrane (610), and the paraffin block I (630) and the paraffin block II (640) are both positioned at the upper end of the bearing plate (650); the bearing plate (650) is positioned at the upper end of the inner medium (620); the paraffin block I (630) and the paraffin block II (640) are adjacently arranged, and the paraffin block I (630) and the paraffin block II (640) are hollow structures; the first paraffin block (630) and the second paraffin block (640) are both made of paraffin, and the melting point of the paraffin is 5-8 ℃ lower than that of the inner medium (620); the bearing plate (650) is made of hard plastic, and the melting point of the bearing plate (650) is higher than that of the outer film (610); the bearing plate (650) is provided with a plurality of openings; the first paraffin block (630) is filled with sodium bicarbonate powder (631), and the second paraffin block (640) is filled with boric acid powder (641).
7. The intelligent operation and maintenance system for the power grid based on the fault diagnosis and detection of big data according to claim 6, wherein side magnets (660) are fixed at two ends of the top end of the outer film (610), and the two side magnets (660) are mutually magnetically attracted; one of the side magnets (660) is positioned on one side of the paraffin block I (630) away from the paraffin block II (640), and the other side of the paraffin block II (640) away from the paraffin block I (630).
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