CN112636474A - Intelligent power utilization supervision method - Google Patents
Intelligent power utilization supervision method Download PDFInfo
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- CN112636474A CN112636474A CN202011490316.5A CN202011490316A CN112636474A CN 112636474 A CN112636474 A CN 112636474A CN 202011490316 A CN202011490316 A CN 202011490316A CN 112636474 A CN112636474 A CN 112636474A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000001012 protector Effects 0.000 claims abstract description 19
- 238000004891 communication Methods 0.000 claims abstract description 13
- 238000003780 insertion Methods 0.000 claims description 20
- 230000037431 insertion Effects 0.000 claims description 20
- 238000012544 monitoring process Methods 0.000 claims description 16
- 230000002159 abnormal effect Effects 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 10
- 238000011084 recovery Methods 0.000 claims description 4
- 235000013312 flour Nutrition 0.000 description 10
- 238000001514 detection method Methods 0.000 description 7
- 239000000428 dust Substances 0.000 description 5
- 238000004880 explosion Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 210000002421 cell wall Anatomy 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0096—Radiation pyrometry, e.g. infrared or optical thermometry for measuring wires, electrical contacts or electronic systems
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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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
-
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
- H02J13/0004—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers involved in a protection system
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- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
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- Spectroscopy & Molecular Physics (AREA)
- Emergency Alarm Devices (AREA)
- Patch Boards (AREA)
Abstract
The invention relates to the technical field of automatic control, and particularly discloses an intelligent power utilization supervision method, which comprises the following steps: 1. the method comprises the following steps of dividing a cable laying pipe in a plant into a plurality of working areas, independently radiating heat of each working area, and installing an infrared temperature sensor on the side wall of the cable laying pipe; 2. the zero sequence current transformer detects zero sequence current of a three-phase line sleeved in the zero sequence current transformer, and transmits an electric signal to the comprehensive protector; 3. the comprehensive protector judges the electric leakage of the cable after receiving the electric signal, then controls the contactor to disconnect the main loop power supply, controls the infrared temperature sensor to start collecting the temperature data of the working area, and transmits the temperature data back to the comprehensive protector; 4. after the comprehensive protector processes the temperature data, fault point position information is sent to a worker through a communication module; the method can detect the temperature of the fault cable and avoid the occurrence of fire caused by reapplying the pulse current.
Description
Technical Field
The invention relates to the technical field of automatic control, which is used for monitoring and detecting a cable fault point, in particular to an intelligent power utilization monitoring method.
Background
Nowadays, electric energy and electrical equipment are also more and more widely used, but because the electric energy itself has certain danger, if the misoperation, very easily arouse the power consumption accident. Especially in the factory building that dust content is high, like the flour factory building, its cable is walked the line via the factory building high altitude usually, in case the cable appears the electric leakage, the electric current is if contacting the dust, very easily explodes, therefore is essential to the cable state monitoring in this type of factory building, and often use power cable fault-location appearance to investigate the position that breaks down in the cable among the prior art, its mainly through increase low voltage pulse current again in the cable for detect the fault point, its defect lies in:
1. dust in the air is easily detonated under the condition of electric leakage of the cable, so that pulse current detection is not suitable to be used after the power failure is triggered by the electric leakage of the cable, and the danger is high.
2. The existing power cable fault distance measuring instrument needs manual operation, the process is complex, and the environment in a factory building is extremely easy to threaten personal safety.
Disclosure of Invention
The invention aims to provide an intelligent power utilization monitoring method to realize automatic safety detection of cable fault points in a factory building so as to prevent further disasters.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
an intelligent power utilization supervision method comprises the following steps:
s1, dividing a cable laying pipe in a factory building into a plurality of working areas, independently radiating each working area, installing infrared temperature sensors for measuring the temperature in each working area on the side wall of the cable laying pipe, wherein the infrared temperature sensor of each working area corresponds to one code, and the codes are not repeated;
s2, detecting zero sequence current of a three-phase line sleeved in the zero sequence current transformer by using the zero sequence current transformer, and transmitting an electric signal to the comprehensive protector by using the zero sequence current transformer;
s3, the comprehensive protector judges the electric leakage of the cable after receiving the electric signal, then controls the contactor to disconnect the main loop power supply, controls the infrared temperature sensor to start collecting the temperature data of each working area S1, and transmits the temperature data and the coded data of the infrared sensor back to the comprehensive protector;
s4, the comprehensive protector identifies temperature abnormal data and sends the temperature abnormal data and the corresponding infrared sensor coded data to the staff through the communication module;
s5, determining an electric leakage working area according to the coded data by workers, and repairing the cable in the area;
furthermore, the zero sequence current transformer, the contactor, the comprehensive protector and the communication module are all installed in a power distribution cabinet, the power distribution cabinet comprises a box body, an inlet and an outlet are formed in the side wall of one side of the box body, a box cover for covering the inlet and the outlet is installed on the inlet and the outlet, the box cover comprises a cover plate A and a cover plate B, the opposite sides of the cover plate A and the cover plate B are respectively hinged with the two sides of the box body, and the opposite sides of the cover plate A and the cover plate B are mutually locked through a;
the locking device comprises a strip-shaped piece and a clamping piece, the strip-shaped piece is arranged on the outer side wall of the cover plate A, two ends of the strip-shaped piece are respectively connected with the cover plate A and the cover plate B in a sliding mode, the strip-shaped piece can only face the cover plate B along the sliding direction, the strip-shaped piece slides on the outer side walls of the cover plate A and the cover plate B, and a through hole is formed in the lower side wall of the strip-shaped piece;
the cover plate B is provided with a clamping piece at one end opposite to the cover plate A, the clamping piece comprises a central shaft, an elastic restoring device and an inserting rod which are sequentially connected, the central shaft is connected with the cover plate B, when the inlet and the outlet are covered by the box cover, the axis of the through hole is superposed with the axis of the inserting rod, and at the moment, one end of the inserting rod, far away from the elastic restoring device, is clamped with the strip-shaped piece through the through hole;
the two locking devices share one central shaft (7), and the locking devices are distributed along the geometric center of the box cover in a centrosymmetric manner;
further, a strip-shaped sliding groove A is formed in the cover plate A, the strip-shaped sliding groove A is parallel to the axis of the strip-shaped part, one end of the strip-shaped sliding groove A extends to the cover plate B and extends to the plate surface of the cover plate B, and the size of an opening of the strip-shaped sliding groove A is smaller than that of the bottom of the groove;
the bottom of the strip-shaped part is fixedly connected with a sliding block, the sliding block is in sliding fit with the strip-shaped sliding groove A, and the shape and the size of the cross section of the sliding block are consistent with those of the cross section of the strip-shaped sliding groove A;
further, a strip-shaped sliding groove B is formed in the lower side wall of the strip-shaped part, the axis of the strip-shaped sliding groove B is parallel to the axis of the strip-shaped part, and the through hole is formed in the bottom of the strip-shaped sliding groove B;
the lower part of the central shaft is also sleeved with a shaft sleeve, the shaft sleeve is fixedly connected to the cover plate B, and the central shaft is in rotating fit with the shaft sleeve;
furthermore, one end of the insertion rod inserted into the through hole is coaxially connected with a hemispherical piece, the plane end of the hemispherical piece is connected with the end face of the insertion rod, and the radius of the hemispherical piece is the same as that of the insertion rod;
furthermore, the elastic restoring device is a hydraulic rod, a hydraulic cylinder of the hydraulic rod is fixedly connected with the central shaft, and a piston rod of the hydraulic rod is detachably connected with one end, close to the central shaft, of the insertion rod;
furthermore, a bulge is arranged on the circumferential surface of the insertion rod and is fixedly connected with the insertion rod;
compared with the prior art, the invention has the following beneficial effects:
1. a large amount of dust exists in the air in the flour factory building for a long time, part of dust can enter a laying pipe of a cable, when the cable leaks electricity, a power supply of a main loop is disconnected, and at the moment, an infrared temperature sensor is started by a control loop to directly detect the temperature of each working area of the cable, so that the introduction of new pulse current detection is avoided, and the explosion danger is increased;
2. the method realizes rapid detection after power failure through the comprehensive protection device, and does not need to bring a detection instrument into a factory for detection;
3. the modules for realizing the automatic detection of the invention are arranged in the explosion-proof power distribution cabinet, and the box cover of the power distribution cabinet is provided with the locking device, so that once the modules in the power distribution cabinet are subjected to combustion and explosion, the external influence can not be caused; 4, the two locking devices of the invention enhance the explosion-proof stability of the power distribution cabinet, and the two locking devices are controlled by rotating through a central shaft, so that compared with the two existing bolts, the two locking devices can realize unlocking or locking operation only by one step.
Drawings
FIG. 1 is a schematic diagram of a power consumption monitoring system;
FIG. 2 is a schematic diagram of a power distribution cabinet cover
FIG. 3 is a schematic view of a strip structure 1;
FIG. 4 is a schematic view of a strip construction 2;
FIG. 5 is a schematic plan view of the locking device in use;
FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;
FIG. 7 is a schematic perspective view of the locking device in use;
FIG. 8 is a schematic view of the structure of the clip;
FIG. 9 is a schematic view of the locking mechanism being unlocked;
1. a strip; 2. a slider; 3. a strip-shaped chute B; 4. a through hole; 5. a plug rod; 6. a hydraulic lever; 7. A central shaft; 8. a strip-shaped chute A; 9. a cover plate B; 10. a cover plate A; 11. a protrusion; 12. a hemispherical member.
Detailed Description
The features and properties of the present invention are described in further detail below with reference to examples.
Example 1
Referring to fig. 1 to 9, the present embodiment provides an intelligent power consumption monitoring method, including the following steps:
s1, dividing a cable laying pipe in a factory building into a plurality of working areas, independently radiating each working area, installing infrared temperature sensors for measuring the temperature in each working area on the side wall of the cable laying pipe, wherein the infrared temperature sensor of each working area corresponds to one code, and the codes are not repeated;
s2, detecting zero sequence current of a three-phase line sleeved in the zero sequence current transformer by using the zero sequence current transformer, and transmitting an electric signal to the comprehensive protector by using the zero sequence current transformer;
s3, the comprehensive protector judges the electric leakage of the cable after receiving the electric signal, then controls the contactor to disconnect the main loop power supply, controls the infrared temperature sensor to start collecting the temperature data of each working area S1, and transmits the temperature data and the coded data of the infrared sensor back to the comprehensive protector;
s4, the comprehensive protector identifies temperature abnormal data and sends the temperature abnormal data and the corresponding infrared sensor coded data to the staff through the communication module;
and S5, determining the electric leakage working area according to the coded data by workers, and repairing the cable in the area.
The working principle of the embodiment is as follows:
the method is used for finding out a fault point when a cable in a special factory building, such as a flour factory building, has a fault; in special plants such as flour plants, when a cable breaks down, a main loop is powered off, but pulse current needs to be introduced into the original cable again by using the power cable fault distance measuring instrument in the prior art, which is not safe in the flour plants which are easy to cause fire, and if the current is introduced again when the condition of cable leakage occurs due to the damage of an insulating layer, the flour is easy to ignite;
as shown in FIG. 1, the method is realized by the electricity utilization monitoring system, so that electricity utilization monitoring of the type of factory buildings is realized; the power utilization monitoring system comprises a main loop and a control loop, wherein the main loop and the control loop are relatively independent and are respectively supplied with power by a main loop power supply and a control loop power supply;
the main circuit comprises a main circuit power supply, a contactor, a zero sequence current transformer and a cable which are sequentially and electrically connected, wherein the contactor is used for disconnecting the main circuit power supply, the zero sequence current transformer is used for detecting whether zero sequence current is generated in the cable, three phase lines penetrate through the zero sequence current transformer, and the cable is used for supplying power to a user side;
the control loop comprises a control loop power supply, a comprehensive protection device, an infrared temperature sensor and a communication module, and the contactor, the zero sequence current transformer, the communication module, the infrared temperature sensor and the control loop power supply are all electrically connected with the comprehensive protection device; the comprehensive protection device is used for processing data and sending instructions to all modules electrically connected with the comprehensive protection device, the infrared temperature sensor is used for detecting the temperature of all working areas, and the communication module is used for establishing communication with workers;
the working process of the embodiment is as follows:
1. the zero sequence current transformer detects that zero sequence current exists in the cable and transmits data to the comprehensive protection device;
2. the comprehensive protection device gives an instruction to the contactor according to the presetting, and the contactor disconnects the main loop power supply;
3. the comprehensive protection device starts the infrared temperature sensor while disconnecting the main loop power supply, and the infrared temperature sensor detects the temperature data of each working area and transmits the temperature data back to the comprehensive protection device;
4. the comprehensive protection device judges a working area with abnormal temperature according to a set temperature threshold value after receiving the temperature data and the coded data of the infrared sensor, sends the data of the working area with abnormal temperature to the communication module, the communication module sends the data to a worker, and the worker judges which working area has abnormal temperature according to the coded data of the infrared sensor in the area with abnormal temperature, and then repairs the area;
the working area is a cable entering a factory building, a cable laying pipe is sleeved outside the cable, and the cable on the factory building is a high-risk area, so that if the part of the cable leaks electricity, the part of the cable is not suitable to be detected by pulse current; the cable laying pipes are uniformly divided into a plurality of working areas according to the detectable range of the infrared temperature sensors, each working area independently dissipates heat and is provided with the temperature sensor, and the temperature is detected by the method and the system;
the cable trouble has a lot of, like short circuit, electric leakage etc. but to in the flour factory building, the harm that the electric leakage brought is the most serious, and the electric leakage of certain department of cable, mainly because the cable generates heat and leads to the part insulating layer that generates heat to be destroyed, therefore the temperature of the part of electric leakage can be higher than the temperature of other normal cables departments, so this embodiment is to the cable run electric leakage on the factory building, uses temperature sensor to detect, ensures that the flour in the factory building can not be lighted by electric arc, prevents property loss.
Example 2
Referring to fig. 2 to 9, based on embodiment 1, this embodiment provides a power distribution cabinet using the power consumption monitoring system of embodiment 1, specifically, the zero sequence current transformer, the contactor, the comprehensive protector and the communication module are all installed in the power distribution cabinet, the power distribution cabinet includes a cabinet body, an entrance is opened on a side wall of one side of the cabinet body, a cabinet cover is installed on the entrance and the exit, the cabinet cover includes a cover plate a10 and a cover plate B9, opposite sides of the cover plate a10 and the cover plate B9 are respectively hinged to two sides of the cabinet body, and opposite sides are locked to each other by a locking device;
the locking device comprises a strip-shaped part 1 and a clamping part, wherein the strip-shaped part 1 is arranged on the outer side wall of a cover plate A10, two ends of the strip-shaped part 1 are respectively in sliding connection with the cover plate A10 and the cover plate B9, the strip-shaped part 1 is only opposite to the cover plate B9 along the sliding direction, the strip-shaped part 1 slides on the outer side walls of the cover plate A10 and the cover plate B9, and the lower side wall of the strip-shaped part 1 is provided with a through hole 4;
the cover plate B9 is provided with the clamping piece at one end opposite to the cover plate A10, the clamping piece comprises a central shaft 7, an elastic restoring device and an inserting rod 5 which are sequentially connected, the central shaft 7 is connected with the cover plate B9, when the inlet and the outlet of the box cover are covered, the axis of the through hole 4 is superposed with the axis of the inserting rod 5, and at the moment, one end of the inserting rod 5, which is far away from the elastic restoring device, is clamped with the strip-shaped piece 1 through the through hole 4;
the two locking devices share one central shaft 7, and the locking devices are distributed along the geometric center of the box cover in a centrosymmetric manner.
The working principle of the embodiment is as follows:
the strip 1 is slidably connected to the lid, preferably with an axis perpendicular to the axis of the lid in the vertical direction, to ensure an optimal locking effect; the clamping piece keeps a vertical state and is installed on the cover plate B9 or the cover plate A10 through the central shaft 7, the strip piece 1 selects the other cover plate to ensure that the cover plate A10 and the cover plate B9 can limit displacement mutually through the locking device when the locking device is locked, the embodiment is preferably that the clamping piece is arranged on the cover plate B9, and the strip piece 1 is arranged on the cover plate A10;
when the strip-shaped part 1 is not clamped with the clamping part, the elastic recovery device of the clamping part is in a compression state, the inserting rod 5 of the clamping part abuts against the lower side wall of the strip-shaped part 1 and is close to the through hole 4 along with the movement of the strip-shaped part 1, when the strip-shaped part 1 is clamped with the clamping part, one end of the strip-shaped part 1 is located on one side of the cover plate A10, and the other end of the strip-shaped part 1 is located on one side of the cover plate B9; when the switch board is opened to needs, then take out in inserting rod 5 follow through-hole 4, can remove strip 1, when strip 1 only with apron A10 sliding connection, then can open the case lid.
When the cable breaks down, lead to the multiple module in the switch board easily, destroy and take place the small-scale explosion like ammeter, contactor etc. therefore to switch board case lid production impact, can ignite the flour in the flour factory building even, cause great loss of property.
For with loss control at minimum, the case lid of switch board is consolidated to this embodiment, sets up locking device at the case lid lateral wall promptly, and when locking device locked, apron A10 and apron B9 are firmly fixed, can't open to when making the inside explosion that takes place of switch board, its gas flame can not rush out the switch board, therefore makes the switch board have explosion-proof function.
Through two locking device reinforcing switch board blast proof stability, and rotate through a center pin, realize the control to two locking device, for two current bolts, only need a step can realize the unblock or the operation of locking.
Example 3
Referring to fig. 2 to 9, based on embodiment 2, the present embodiment provides a preferable scheme of sliding connection between a strip-shaped member 1 and a box cover, specifically, a strip-shaped sliding groove A8 is disposed on the cover plate a10, the strip-shaped sliding groove A8 is parallel to an axis of the strip-shaped member 1, one end of the strip-shaped sliding groove A8 extends toward the cover plate B9 and extends to a plate surface of the cover plate B9, and an opening size of the strip-shaped sliding groove A8 is smaller than a groove bottom size;
the bottom of the strip-shaped part 1 is fixedly connected with a sliding block 2, the sliding block 2 is in sliding fit with a strip-shaped sliding groove A8, and the shape and the size of the cross section of the sliding block are consistent with those of the cross section of a strip-shaped sliding groove A8.
The working principle of the embodiment is as follows:
the strip-shaped sliding chute A8 is preferably of a sliding chute structure with a T-shaped cross section, so that the opening size of the strip-shaped sliding chute A8 is smaller than the size of the chute bottom; the sliding block 2 is in sliding fit with the strip-shaped sliding groove A8, so that once the power distribution cabinet impacts the box cover, the strip-shaped piece 1 can keep the connection relation with the box cover and cannot fall off; the strip-shaped sliding groove A8 extending from the cover plate B9 to the cover plate a10 ensures that the strip 1 can achieve the sliding position described in embodiment 2 to lock the box cover.
Example 4
Referring to fig. 2 to 9, on the basis of embodiment 3, the present embodiment provides a preferable scheme of self-locking of a locking device, specifically, a strip-shaped sliding groove B3 is formed on a lower side wall of the strip-shaped member 1, an axis of the strip-shaped sliding groove B3 is parallel to an axis of the strip-shaped member 1, and the through hole 4 is formed at a bottom of the strip-shaped sliding groove B3;
the lower part of the central shaft 7 is also sleeved with a shaft sleeve, the shaft sleeve is fixedly connected to a cover plate B9, and the central shaft 7 is in running fit with the shaft sleeve.
The working principle of the embodiment is as follows:
in the present embodiment, the connection relationship between the clip and the cover plate is further defined, the clip is mounted on either the cover plate a10 or the cover plate B9, and preferably, the clip is connected to the cover plate B9 on the right side in the present embodiment; the central shaft 7 can rotate through the arrangement of the shaft sleeve, but the clamping piece is vertically fixed in embodiment 2; meanwhile, set up bar spout B3 in through-hole 4 position for the back is come out from through-hole 4 to the plug connector, twists reverse the back with center pin 7, and the joint spare can move strip spare 1 to both ends all in the position of apron B9, therefore can open the case lid, and its work flow that specifically can realize is as follows:
1. close apron A10 and apron B9, close in-process with peg graft pole 5 near center pin 7, and the butt is at apron B9 tank bottom, rotate anticlockwise rotation center pin 7 afterwards, because it is almost smooth between peg graft pole 5 and the bar spout B3, make peg graft pole 5 at the left end cell wall of rotation in-process butt bar spout B3, and borrow this cell wall to drive strip 1 and move left, this moment because the axis of peg graft pole 5 and through-hole 4 does not coincide, therefore peg graft pole 5 can't get into through-hole 4 along with strip 1 moves left, when peg pole 5 coincides with the axis of through-hole 4, strip 1 is perpendicular with the joint this moment, the axis of peg pole 5 coincides with the axis of through-hole 4, strip 1 has one end to be located apron A10 one side. Then the elastic restoring device drives the inserting rod 5 to be inserted into the through hole 4, so that the position of the strip-shaped part 1 is fixed;
2. when the box cover needs to be opened, the inserting rod 5 is pulled out of the through hole 4, the central shaft 7 is rotated clockwise by a certain angle, the axis of the inserting rod 5 is not overlapped with the axis of the through hole 4, the inserting rod 5 abuts against the groove bottom of the strip-shaped sliding groove B3 at the moment, the inserting rod 5 is driven by the elastic restoring device to slide at the groove bottom and abut against the groove wall at the right end of the strip-shaped sliding groove B3, at the moment, the elastic restoring device is still in a compression state, so that the strip-shaped part 1 is continuously pushed to move rightwards until the angle between the inserting rod and the strip-shaped part 1 is too large, the length of the inserting rod 5 is not enough to abut against the groove wall at the right end of the strip-shaped sliding groove B3, at the moment;
through the design of bar spout B3, can realize closing the in-process at the case lid, to apron A10 and apron B9 automatic locking, and when the case lid was opened, also can promote strip 1 and unblock the case lid rapidly, the staff of being convenient for opened the case lid.
Example 5
Referring to fig. 2 to 9, on the basis of embodiment 4, the present embodiment provides a preferable scheme for facilitating quick sliding of the plugging rod 5 in the strip-shaped sliding groove B3, specifically, one end of the plugging rod 5 plugged into the through hole 4 is coaxially connected to a hemispherical member 12, a planar end of the hemispherical member 12 is connected to an end surface of the plugging rod 5, and a radius of the hemispherical member 12 is the same as a radius of the plugging rod 5.
The working principle of the embodiment is as follows:
the design of the hemispherical part 12 reduces the contact surface between the plug rod 5 and the strip-shaped sliding groove B3, so that the friction force is smaller, and the box cover can be unlocked quickly.
Example 6
Referring to fig. 2 to 9, on the basis of embodiment 2, this embodiment provides a preferable scheme of an elastic restoring device, specifically, the elastic restoring device is a hydraulic rod 6, a hydraulic cylinder of the hydraulic rod 6 is fixedly connected with the central shaft 7, and a piston rod of the hydraulic rod 6 is detachably connected with one end of the insertion rod 5 close to the central shaft 7.
The working principle of the embodiment is as follows:
the hydraulic rod 6 can adjust the relationship between the elastic restoring force and the displacement, which is convenient for implementing the invention.
Example 7
Referring to fig. 2 to 9, on the basis of embodiment 2, this embodiment provides a preferable scheme for facilitating retraction of the insertion rod 5, specifically, a protrusion 11 is disposed on a circumferential surface of the insertion rod 5, and the protrusion 11 is fixedly connected with the insertion rod 5.
The working principle of the embodiment is as follows:
the design of the projection 11 makes it easier to compress the elastic restoring device, avoiding the difficulty of contraction due to the smooth surface of the insertion rod 5.
Claims (7)
1. An intelligent power utilization supervision method is characterized in that: the method comprises the following steps:
s1, dividing a cable laying pipe in a factory building into a plurality of working areas, independently radiating each working area, installing infrared temperature sensors for measuring the temperature in each working area on the side wall of the cable laying pipe, wherein the infrared temperature sensor of each working area corresponds to one code, and the codes are not repeated;
s2, detecting zero sequence current of a three-phase line sleeved in the zero sequence current transformer by using the zero sequence current transformer, and transmitting an electric signal to the comprehensive protector by using the zero sequence current transformer;
s3, the comprehensive protector judges the electric leakage of the cable after receiving the electric signal, then controls the contactor to disconnect the main loop power supply, controls the infrared temperature sensor to start collecting the temperature data of each working area S1, and transmits the temperature data and the coded data of the infrared sensor back to the comprehensive protector;
s4, the comprehensive protector identifies temperature abnormal data and sends the temperature abnormal data and the corresponding infrared sensor coded data to the staff through the communication module;
and S5, determining the electric leakage working area according to the coded data by workers, and repairing the cable in the area.
2. The intelligent electricity consumption monitoring method as claimed in claim 1, wherein: the zero sequence current transformer, the contactor, the comprehensive protector and the communication module are all arranged in a power distribution cabinet, the power distribution cabinet comprises a box body, an inlet and an outlet are formed in the side wall of one side of the box body, a box cover for covering the inlet and the outlet is arranged on the inlet and the outlet, the box cover comprises a cover plate A (10) and a cover plate B (9), one sides of the cover plate A (10) and the cover plate B (9), which are opposite to each other, are respectively hinged with the two sides of the box body, and the opposite sides of the cover plate A (10;
the locking device comprises a strip-shaped part (1) and a clamping part, wherein the strip-shaped part (1) is arranged on the outer side wall of the cover plate A (10), the two ends of the strip-shaped part (1) are respectively in sliding connection with the cover plate A (10) and the cover plate B (9), the strip-shaped part (1) is only opposite to the cover plate B (9) along the sliding direction, the strip-shaped part (1) slides on the outer side walls of the cover plate A (10) and the cover plate B (9), and the lower side wall of the strip-shaped part (1) is provided with a through hole (4);
the cover plate B (9) is provided with the clamping piece at one end opposite to the cover plate A (10), the clamping piece comprises a central shaft (7), an elastic recovery device and an insertion rod (5) which are sequentially connected, the central shaft (7) is connected with the cover plate B (9), when the inlet and the outlet of the box cover are covered, the axis of the through hole (4) is overlapped with the axis of the insertion rod (5), and at the moment, one end, far away from the elastic recovery device, of the insertion rod (5) is clamped with the strip-shaped piece (1) through the through hole (4);
the two locking devices share one central shaft (7), and the locking devices are distributed along the geometric center of the box cover in a centrosymmetric manner.
3. The intelligent electricity consumption monitoring method as claimed in claim 2, wherein: a strip-shaped sliding chute A (8) is arranged on the cover plate A (10), the strip-shaped sliding chute A (8) is parallel to the axis of the strip-shaped part (1), one end of the strip-shaped sliding chute A (8) extends to the cover plate B (9) and extends to the plate surface of the cover plate B (9), and the opening size of the strip-shaped sliding chute A (8) is smaller than the size of the bottom of the groove;
the bottom of the strip-shaped part (1) is fixedly connected with a sliding block (2), the sliding block (2) is in sliding fit with a strip-shaped sliding groove A (8), and the shape and the size of the cross section of the sliding block are consistent with those of the cross section of the strip-shaped sliding groove A (8).
4. The intelligent electricity consumption monitoring method as claimed in claim 2, wherein: the lower side wall of the strip-shaped part (1) is provided with a strip-shaped sliding chute B (3), the axis of the strip-shaped sliding chute B (3) is parallel to the axis of the strip-shaped part (1), and the bottom of the strip-shaped sliding chute B (3) is provided with the through hole (4);
the lower part of the central shaft (7) is also sleeved with a shaft sleeve, the shaft sleeve is fixedly connected to the cover plate B (9), and the central shaft (7) is in running fit with the shaft sleeve.
5. The intelligent electricity consumption monitoring method as claimed in claim 4, wherein: one end of the insertion rod (5) inserted into the through hole (4) is coaxially connected with a hemispherical piece (12), the plane end of the hemispherical piece (12) is connected with the end face of the insertion rod (5), and the radius of the hemispherical piece (12) is the same as that of the insertion rod (5).
6. The intelligent electricity consumption monitoring method as claimed in claim 2, wherein: the elastic recovery device is a hydraulic rod (6), a hydraulic cylinder of the hydraulic rod (6) is fixedly connected with the central shaft (7), and a piston rod of the hydraulic rod (6) is detachably connected with one end, close to the central shaft (7), of the insertion rod (5).
7. The intelligent electricity consumption monitoring method as claimed in claim 2, wherein: the circumference of the insertion rod (5) is provided with a bulge (11), and the bulge (11) is fixedly connected with the insertion rod (5).
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Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5178465A (en) * | 1990-07-11 | 1993-01-12 | Fujikura Ltd. | Optical fiber laying structure for electric power cable line trouble occurrence location detecting system |
| KR100790462B1 (en) * | 2006-08-18 | 2008-01-02 | 주식회사 케이디파워 | Temperature detection system of power cables |
| CN201556083U (en) * | 2009-06-11 | 2010-08-18 | 安徽省电力公司蚌埠供电公司 | Cable head temperature integrated monitoring device for cable trench of transformer substation |
| CN101813740A (en) * | 2010-05-13 | 2010-08-25 | 天津市翔晟远电力设备实业有限公司 | System and method for detecting high voltage transmission line faults |
| KR101081929B1 (en) * | 2011-03-07 | 2011-11-10 | 박기주 | A distributing switch watch system |
| CN203929952U (en) * | 2014-01-25 | 2014-11-05 | 泉州天梭电气有限公司 | Intelligent alarm is surveyed in multichannel dilatation electric leakage |
| CN204203406U (en) * | 2014-11-19 | 2015-03-11 | 河北汇鸿电力设备科技有限公司 | A kind of 10kV cable fault comprehensive monitoring and locating device |
| CN107843800A (en) * | 2017-10-20 | 2018-03-27 | 国家电网公司 | Supply network monitoring method, apparatus and system |
| CN107947372A (en) * | 2017-12-22 | 2018-04-20 | 广州思泰信息技术有限公司 | Internet of Things status of electric power detecting system is communicated based on LoRa |
| CN108490329A (en) * | 2018-03-12 | 2018-09-04 | 国网江苏省电力有限公司徐州供电分公司 | Power distribution network crosslinking polyethylene-insulated cable insulation state monitoring apparatus and monitoring method |
| CN108732468A (en) * | 2018-08-14 | 2018-11-02 | 国网陕西省电力公司渭南供电公司 | A kind of distribution line failure detector |
| CN108835957A (en) * | 2018-07-05 | 2018-11-20 | 李志强 | A kind of anti-explosion cabinet of safety coefficient height |
| CN208257183U (en) * | 2018-05-10 | 2018-12-18 | 中欧机械有限公司 | A kind of explosion-proof electrical distribution box |
| CN110323836A (en) * | 2019-08-14 | 2019-10-11 | 国网河南省电力公司电力科学研究院 | Electrical Safety hidden danger supervisory systems and its working method based on safe cloud platform |
| CN110596526A (en) * | 2019-07-09 | 2019-12-20 | 国网江苏省电力有限公司徐州供电分公司 | Distribution line fault detection positioning system and method based on zero sequence current |
| US20200067283A1 (en) * | 2018-08-22 | 2020-02-27 | The Durham Co. | Door support system for an electrical distribution system enclosure |
| CN210486947U (en) * | 2019-08-20 | 2020-05-08 | 重庆南帜科技有限公司 | Cable temperature detection control system of distribution outgoing line loop |
| CN210720685U (en) * | 2019-07-24 | 2020-06-09 | 保定市科威电力科技有限公司 | Leakage monitoring device based on low-current grounding line selection |
| CN212033453U (en) * | 2020-03-29 | 2020-11-27 | 苏师大半导体材料与设备研究院(邳州)有限公司 | Power distribution cabinet with cabinet door locking mechanism |
-
2020
- 2020-12-16 CN CN202011490316.5A patent/CN112636474B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5178465A (en) * | 1990-07-11 | 1993-01-12 | Fujikura Ltd. | Optical fiber laying structure for electric power cable line trouble occurrence location detecting system |
| KR100790462B1 (en) * | 2006-08-18 | 2008-01-02 | 주식회사 케이디파워 | Temperature detection system of power cables |
| CN201556083U (en) * | 2009-06-11 | 2010-08-18 | 安徽省电力公司蚌埠供电公司 | Cable head temperature integrated monitoring device for cable trench of transformer substation |
| CN101813740A (en) * | 2010-05-13 | 2010-08-25 | 天津市翔晟远电力设备实业有限公司 | System and method for detecting high voltage transmission line faults |
| KR101081929B1 (en) * | 2011-03-07 | 2011-11-10 | 박기주 | A distributing switch watch system |
| CN203929952U (en) * | 2014-01-25 | 2014-11-05 | 泉州天梭电气有限公司 | Intelligent alarm is surveyed in multichannel dilatation electric leakage |
| CN204203406U (en) * | 2014-11-19 | 2015-03-11 | 河北汇鸿电力设备科技有限公司 | A kind of 10kV cable fault comprehensive monitoring and locating device |
| CN107843800A (en) * | 2017-10-20 | 2018-03-27 | 国家电网公司 | Supply network monitoring method, apparatus and system |
| CN107947372A (en) * | 2017-12-22 | 2018-04-20 | 广州思泰信息技术有限公司 | Internet of Things status of electric power detecting system is communicated based on LoRa |
| CN108490329A (en) * | 2018-03-12 | 2018-09-04 | 国网江苏省电力有限公司徐州供电分公司 | Power distribution network crosslinking polyethylene-insulated cable insulation state monitoring apparatus and monitoring method |
| CN208257183U (en) * | 2018-05-10 | 2018-12-18 | 中欧机械有限公司 | A kind of explosion-proof electrical distribution box |
| CN108835957A (en) * | 2018-07-05 | 2018-11-20 | 李志强 | A kind of anti-explosion cabinet of safety coefficient height |
| CN108732468A (en) * | 2018-08-14 | 2018-11-02 | 国网陕西省电力公司渭南供电公司 | A kind of distribution line failure detector |
| US20200067283A1 (en) * | 2018-08-22 | 2020-02-27 | The Durham Co. | Door support system for an electrical distribution system enclosure |
| CN110596526A (en) * | 2019-07-09 | 2019-12-20 | 国网江苏省电力有限公司徐州供电分公司 | Distribution line fault detection positioning system and method based on zero sequence current |
| CN210720685U (en) * | 2019-07-24 | 2020-06-09 | 保定市科威电力科技有限公司 | Leakage monitoring device based on low-current grounding line selection |
| CN110323836A (en) * | 2019-08-14 | 2019-10-11 | 国网河南省电力公司电力科学研究院 | Electrical Safety hidden danger supervisory systems and its working method based on safe cloud platform |
| CN210486947U (en) * | 2019-08-20 | 2020-05-08 | 重庆南帜科技有限公司 | Cable temperature detection control system of distribution outgoing line loop |
| CN212033453U (en) * | 2020-03-29 | 2020-11-27 | 苏师大半导体材料与设备研究院(邳州)有限公司 | Power distribution cabinet with cabinet door locking mechanism |
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|---|---|
| CN112636474B (en) | 2022-06-21 |
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Effective date of registration: 20240530 Address after: 067400 4th Floor, Building C, Chengde Huaming Service Outsourcing Industrial Park, Huzhangzi Village, Xiaban Town, Chengde County, Chengde City, Hebei Province, China Patentee after: Hebei Xiaokuai Zhizao Electronic Technology Co.,Ltd. Country or region after: China Address before: 4-5 / F, building 19, Xiangshang Industrial Park, Shaoyang Economic Development Zone, Hunan 422002 Patentee before: HUNAN SMALL QUICK SMART ELECTRONIIC TECHNOLOGY Co.,Ltd. Country or region before: China |