CN115540950B - Transformer oil gas temperature online monitoring device and method - Google Patents
Transformer oil gas temperature online monitoring device and method Download PDFInfo
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- CN115540950B CN115540950B CN202211325000.XA CN202211325000A CN115540950B CN 115540950 B CN115540950 B CN 115540950B CN 202211325000 A CN202211325000 A CN 202211325000A CN 115540950 B CN115540950 B CN 115540950B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/406—Temperature sensor or protection
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a transformer oil gas temperature online monitoring device and a method, belonging to the technical field of transformer oil gas temperature online monitoring, and comprising a transformer outer shell, a transformer inner shell, an iron core and a coil, wherein the coil is wound on the iron core, the coil and the iron core are arranged in the transformer inner shell, the transformer inner shell is wrapped by the transformer outer shell, the bottom openings of the transformer outer shell and the transformer inner shell are fixed on a bottom plate, and a detection channel is reserved between the transformer outer shell and the transformer inner shell; the oil temperature detection rod rotates, a sensor on the oil temperature detection rod does circular motion in the rotating process, the pumping pipe and the oil temperature detection rod drive the transformer oil to shake in the rotating process, so that the oil temperature can be kept stable quickly, and the oil gas temperature can be accurately detected through the circumferential multi-point measurement of the oil temperature detection rod; and the purpose of monitoring temperature data on line can be realized at the site.
Description
Technical Field
The invention relates to the technical field of transformer oil gas temperature online monitoring, in particular to a transformer oil gas temperature online monitoring device and method.
Background
CN202010394930.5 discloses a transformer state monitoring device, measure each item numerical value through oil level measuring module, oil temperature power measuring module, oil tank gas temperature module and oil tank gas humidity module and transmit for the controller through the cable conductor after, then show on the display screen, during user's operation, some numerical values and states about the transformer can be seen clearly and directly through the display screen to modify the parameter of these modules through the operation button, realize the demonstration of detection information.
The invention aims to perform early warning on the temperature and the oil level of the running state of a distribution transformer so as to reduce the probability of abnormity or accidents of the transformer and improve the power supply reliability of the transformer.
There are the following problems:
the oil tank gas temperature module and the oil tank gas humidity module are located at one point inside the transformer, and the detected oil temperature and the detected gas temperature are data of a certain point, so that the problem that the multi-point data of the oil temperature and the gas temperature in the transformer cannot be detected at the same time is caused.
Disclosure of Invention
The invention aims to provide an online monitoring device and method for the oil-gas temperature of a transformer, which aim to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: an online monitoring device for the oil gas temperature of a transformer comprises a transformer outer shell, a transformer inner shell, an iron core and a coil, wherein the coil is wound on the iron core, the coil and the iron core are arranged in the transformer inner shell, the transformer outer shell covers the transformer inner shell, openings at the bottom of the transformer outer shell and the bottom of the transformer inner shell are fixed on a bottom plate, and a detection channel is reserved between the transformer outer shell and the transformer inner shell;
the transformer oil is poured into the transformer inner shell, a gap is reserved between the liquid level of the transformer oil and the top wall of the transformer inner shell, the iron core and the coil are immersed in the transformer oil, an equipment supporting frame is arranged in a detection channel, detection equipment is placed on the equipment supporting frame, and an oil gas extraction detection assembly connected with the detection equipment penetrates into the transformer inner shell, wherein the detection equipment drives the oil gas extraction detection assembly to rotate so as to detect the temperature of the transformer oil, meanwhile, the transformer oil is extracted into the detection equipment, and the temperature of the transformer oil and the temperature of gas in the gap are secondarily detected in the detection equipment;
after the detection equipment detects, transformer oil gas temperature data are transmitted to a monitoring station outside a transformer shell in a wireless mode and are uploaded to the cloud end through the network.
Furthermore, the equipment support frame comprises an upper transverse plate, a lower transverse plate and a connecting rod, wherein the upper transverse plate and the lower transverse plate are horizontally fixed in the detection channel, and the upper transverse plate and the lower transverse plate are fixed through the connecting rod.
Furthermore, the detection equipment comprises a motor, an integrated circuit board, a cylinder, a detection box and a storage battery, wherein the motor, the integrated circuit board and the storage battery are arranged on the lower transverse plate side by side, and the cylinder and the detection box are arranged on the upper transverse plate side by side;
the detection box is internally provided with a sensor for detecting the oil gas temperature of the transformer, wherein a wire harness connected with the sensor penetrates out of the detection box to be connected with the integrated circuit board, and the integrated circuit board is also connected with the motor through a wire.
Furthermore, the oil gas pump detection assembly comprises a first outer pipe, an inner pipe, a sleeve, a partition plate, a pump pipe, an oil temperature detection rod, a conduction part and a second outer pipe, wherein one end of the first outer pipe and one end of the second outer pipe are inserted into the sleeve fixed in the detection channel, the first outer pipe and the second outer pipe are fixed through a rod body, and the connection parts of the first outer pipe and the sleeve and the second outer pipe are also provided with sealing rings;
the port at the other end of the second outer pipe is meshed with a bevel gear of a shaft of the motor through the bevel gear, the other end of the first outer pipe is inserted into the inner shell of the transformer, the opening of the port is closed, and a sensor for detecting the oil temperature is fixed on the closed surface;
the inner pipe penetrates through the second outer pipe and the sleeve which are positioned in the detection channel, is inserted into the first outer pipe and abuts against the closed surface, and the partition plate partitions the inner cavity of the inner pipe to form a liquid channel and a wiring harness channel respectively;
the outer wall of a first outer tube in the inner shell of the transformer is respectively and fixedly provided with a symmetrical pumping tube and an oil temperature detection rod, wherein the pumping tube is communicated with one end of a liquid channel, the other end of the liquid channel is communicated with an inner cavity of a sleeve, the port of the oil temperature detection rod is connected with a sensor, a lead connected with the sensor extends to a wiring harness channel along the inside of the oil temperature detection rod and is connected with a sensor wiring harness for detecting oil temperature in parallel on a electrifying part, the electrifying part is electrically connected with a storage battery, and the sensor for detecting the oil temperature wirelessly transmits data with an integrated circuit board;
the pipeline and the cylinder access connection of sleeve intercommunication, the export of cylinder connect in the detection case, and the oil extraction pipe that the detection case bottom is connected extends to in the transformer inner shell.
Furthermore, the electrifying component comprises a first electrifying electrode plate, an insulating spring, a second electrifying electrode plate and a conducting rod, the first electrifying electrode plate is fixed in the wire harness channel and is electrically connected with a lead of the sensor, the conducting rod penetrates into the inner tube to be connected with one surface of the second electrifying electrode plate, the other surface of the second electrifying electrode plate is contacted with the first electrifying electrode plate, and a wire harness connected with the conducting rod is connected to the storage battery;
the insulating spring is sleeved outside the conducting rod and connected with the inner wall of the detection channel.
Further, the oil temperature detection rod and the drawing pipe have the same diameter, and rotate to the highest position in a gap at the top of the inner shell of the transformer.
Further, the integrated circuit board integrates a wireless module and is used for wirelessly transmitting the measured oil gas temperature data of the transformer to a monitoring station.
The application provides another method, which comprises a transformer oil gas temperature online monitoring device, and comprises the following steps:
s1: the sensor of the first outer pipe sends detected transformer oil temperature data to the integrated circuit board in a wireless manner in real time;
s2: the motor drives the first outer pipe, the second outer pipe and the inner pipe to synchronously rotate through the bevel gear, in the rotating process, the pumping pipe is positioned below the liquid level of transformer oil, the transformer oil is pumped to flow into the detection box through the liquid channel, the pumping pipe is positioned above the liquid level of the transformer oil, the gap of the transformer is communicated with the detection box, and the sensor detects the temperature in the gap of the transformer;
s3: sending the detection data of the oil temperature and the gas temperature of the transformer in the detection box in the S2 to the integrated circuit board;
s4: the integrated circuit board transmits data to the monitoring station in a wireless mode.
Compared with the prior art, the invention has the beneficial effects that:
1. the oil temperature detection rod rotates, a sensor on the oil temperature detection rod does circular motion in the rotating process, the pumping pipe and the oil temperature detection rod drive the transformer oil to shake in the rotating process, so that the oil temperature can be kept stable quickly, and the oil temperature can be detected in multiple points through the circumferential multi-point measurement of the oil temperature detection rod;
gas and fluid of extraction round are in the detection case, and the inside oil temperature data of detection case sends to integrated circuit board to more than the liquid level of transformer fluid that the taking out pipe is located, then transformer space and detection case intercommunication, gaseous detection gas temperature in the detection case in the extraction transformer, through the secondary detection, improve the degree of accuracy that detects, wireless transmission measuring transformer oil gas temperature data send to the monitoring website. So that temperature data can be monitored online at the site.
2. Through the contact between first circular telegram electrode piece and the second circular telegram electrode piece, with electric energy transmission to sensor to for the sensor keeps supplying power all the time, avoid the sensor to use the problem that does not have the electricity for a long time.
Drawings
FIG. 1 is a diagram of the internal structure of a transformer according to the present invention;
FIG. 2 is a cross-sectional view of the interior of the transformer of the present invention;
FIG. 3 is an enlarged view of FIG. 2 at A in accordance with the present invention;
FIG. 4 is a view of the inner tube of the present invention not being closed by the separator;
fig. 5 is a view showing the inner tube of the present invention closed by the partition plate.
In the figure: 1. a transformer housing; 2. a transformer inner casing; 3. an iron core; 4. a coil; 5. a base plate; 6. an equipment support frame; 61. an upper transverse plate; 62. a lower transverse plate; 63. a connecting rod; 7. a detection device; 71. a motor; 72. an integrated circuit board; 73. a cylinder; 74. a detection box; 75. a battery; 8. a detection component; 81. a first outer tube; 82. an inner tube; 83. a sleeve; 84. a separator plate; 85. drawing a pipe; 86. an oil temperature detection lever; 87. a power-on component; 871. a first powered electrode pad; 872. an insulating spring; 873. a second powered electrode pad; 874. a conductive rod; 88. a second outer tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In order to solve the problems that the coil 4 of the existing transformer is soaked by transformer oil, the coil 4 can generate a large amount of heat, the coil 4 is not uniformly positioned in the transformer, the local temperature is easily high, and if a sensor is adopted to test one point, the measured oil temperature and air temperature data are easily incomplete and perfect, the following technical scheme is provided:
referring to fig. 1-5, an online monitoring device for oil-gas temperature of a transformer comprises a transformer outer shell 1, a transformer inner shell 2, an iron core 3 and a coil 4, wherein the coil 4 is wound on the iron core 3, the coil 4 and the iron core 3 are arranged in the transformer inner shell 2, the transformer inner shell 2 is wrapped by the transformer outer shell 1, openings at the bottom of the transformer outer shell 1 and the transformer inner shell 2 are fixed on a bottom plate 5, and a detection channel is reserved between the transformer outer shell 1 and the transformer inner shell 2;
the transformer oil is poured into the transformer inner shell 2, a gap is reserved between the liquid level of the transformer oil and the top wall of the transformer inner shell 2, the iron core 3 and the coil 4 are immersed in the transformer oil, an equipment supporting frame 6 is arranged in a detection channel, detection equipment 7 is placed on the equipment supporting frame 6, an oil-gas extraction detection assembly 8 connected with the detection equipment 7 penetrates into the transformer inner shell 2, wherein the detection equipment 7 drives the oil-gas extraction detection assembly 8 to rotate so as to be used for detecting the temperature of the transformer oil, the transformer oil is extracted into the detection equipment 7 at the same time, and the temperature of the transformer oil and the temperature of gas in the gap are detected secondarily in the detection equipment 7;
after the detection equipment 7 detects, the transformer oil gas temperature data are transmitted to the monitoring station outside the transformer shell 1 in a wireless mode and are uploaded to the cloud end through the network.
The device supporting frame 6 comprises an upper transverse plate 61, a lower transverse plate 62 and a connecting rod 63, wherein the upper transverse plate 61 and the lower transverse plate 62 are horizontally fixed in the detection channel, and the upper transverse plate 61 and the lower transverse plate 62 are fixed through the connecting rod 63.
The detection device 7 comprises a motor 71, an integrated circuit board 72, an air cylinder 73, a detection box 74 and a storage battery 75, wherein the motor 71, the integrated circuit board 72 and the storage battery 75 are arranged on the lower transverse plate 62 side by side, and the air cylinder 73 and the detection box 74 are arranged on the upper transverse plate 61 side by side;
a sensor for detecting the oil gas temperature of the transformer is arranged in the detection box 74, wherein a wire harness connected with the sensor penetrates out of the detection box 74 to be connected with the integrated circuit board 72, and the integrated circuit board 72 is further connected with the motor 71 through a wire.
The oil gas pumping detection assembly 8 comprises a first outer pipe 81, an inner pipe 82, a sleeve 83, a partition plate 84, a pumping pipe 85, an oil temperature detection rod 86, an electrifying part 87 and a second outer pipe 88, wherein one end of each of the first outer pipe 81 and the second outer pipe 88 is inserted into and fixed in the sleeve 83 in a detection channel, the first outer pipe 81 and the second outer pipe 88 are fixed through a rod body, and the joint of the first outer pipe 81, the second outer pipe 88 and the sleeve 83 is further provided with a sealing ring;
the other end port of the second outer pipe 88 is engaged with the bevel gear of the shaft of the motor 71 through the bevel gear, the other end of the first outer pipe 81 is inserted into the transformer inner casing 2, the opening of the port is closed, and a sensor for detecting the oil temperature is fixed on the closed surface;
the inner tube 82 penetrates through a second outer tube 88 and a sleeve 83 which are positioned in the detection channel, is inserted into the first outer tube 81 and abuts against the closed surface, and the partition plate 84 partitions the inner cavity of the inner tube 82 to form a liquid channel and a wiring harness channel respectively;
the outer wall of the first outer tube 81 in the transformer inner shell 2 is further fixed with a symmetrical pumping tube 85 and an oil temperature detection rod 86 respectively, wherein the pumping tube 85 is communicated with one end of a liquid channel, the other end of the liquid channel is communicated with the inner cavity of the sleeve 83, the port of the oil temperature detection rod 86 is connected with a sensor, a lead connected with the sensor extends to a wiring harness channel along the inside of the oil temperature detection rod 86 and is connected with a sensor wiring harness for detecting oil temperature in parallel on a power-on component 87, the power-on component 87 is electrically connected with the storage battery 75, and the sensor for detecting oil temperature wirelessly transmits data with the integrated circuit board 72;
the pipeline communicated with the sleeve 83 is connected with the inlet of the cylinder 73, the outlet of the cylinder 73 is connected in the detection box 74, and the oil discharge pipe connected with the bottom of the detection box 74 extends into the transformer inner shell 2.
The oil temperature detecting lever 86 and the suction pipe 85 have the same diameter, and the oil temperature detecting lever 86 and the suction pipe 85 are rotated to be highest in a gap at the top of the transformer inner case 2.
Specifically, the pumping pipe 85 and the oil temperature detection rod 86 are symmetrically arranged, and a sensor always located in transformer oil is further arranged at a port of the first outer pipe 81, and the sensor can directly detect the oil temperature at the position of the transformer, and because the coil 4 of the transformer is soaked by the transformer oil, the coil 4 of the transformer can generate a large amount of heat in the working process of the transformer, and the coil 4 is not uniformly located in the transformer, the local temperature is easily high, if the sensor is used for detecting one point, the measured oil temperature data is easily incomplete and perfect, the oil temperature detection rod 86 rotates, the sensor on the oil temperature detection rod 86 does circular motion in the rotating process, and the pumping pipe 85 and the oil temperature detection rod 86 drive the transformer oil to shake in the rotating process, so that the oil temperature can be quickly kept stable, and the oil temperature can be detected at multiple points through the circular multi-point measurement of the oil temperature detection rod 86;
the cylinder 73 only provides the power of taking out the rotatory round of pipe 85, take out partly to the detection case 74 with transformer oil and the inside gas of transformer, wherein, gas in the detection case 74 is arranged back to in the transformer inner shell 2 through arranging the oil pipe, realize dynamic balance, arrange oil pipe and cylinder 73 both linkages, start simultaneously, stop simultaneously, then extract gaseous and fluid of round in the detection case 74, the valve on the oil pipe of arranging is closed, a valve closure for detecting inside oil temperature and gas temperature, data transmission to integrated circuit board 72 with detecting again, integrated wireless module of integrated circuit board 72, a transformer oil gas temperature data to monitoring station for the wireless transmission measuring. So that temperature data can be monitored online at the site.
In order to solve the problem that the sensor is positioned in the transformer and needs to move in real time, the sensor is powered by adopting common wiring harness connection, so that the wiring harness is easy to wind when the sensor rotates, the following technical scheme is provided, please refer to figure 3,
the electrifying component 87 comprises a first electrifying electrode sheet 871, an insulating spring 872, a second electrifying electrode sheet 873 and a conductive rod 874, the first electrifying electrode sheet 871 is fixed in the wiring harness channel, the first electrifying electrode sheet 871 is electrically connected with a lead of the sensor, the conductive rod 874 penetrates into the inner tube 82 to be connected with one surface of the second electrifying electrode sheet 873, the other surface of the second electrifying electrode sheet 873 is contacted with the first electrifying electrode sheet 871, and the wiring harness connected with the conductive rod 874 is connected with the storage battery 75;
an insulating spring 872 is fitted over the outside of the conductive rod 874, and the insulating spring 872 is attached to the inner wall of the detection channel.
Specifically, by sleeving the insulating spring 872 on the outer wall of the conductive rod 874, the outer side of the conductive rod 874 is partially protected by the insulating spring 872, meanwhile, the first energization electrode sheet 871 rotates, the second energization electrode sheet 873 does not rotate, electric energy is transmitted to the sensor through contact between the first energization electrode sheet 871 and the second energization electrode sheet 873, so that power is always supplied to the sensor, and the problem that the sensor is not powered for a long time is solved.
The application provides another method, which comprises a transformer oil gas temperature online monitoring device, and comprises the following steps:
the method comprises the following steps: the sensor of the first outer tube 81 transmits the detected oil temperature data of the transformer to the integrated circuit board 72 in a wireless manner in real time;
step two: the motor 71 drives the first outer pipe 81, the second outer pipe 88 and the inner pipe 82 to synchronously rotate through a bevel gear, in the rotating process, when the pumping pipe 85 is positioned below the liquid level of transformer oil, the transformer oil is pumped to flow into the detection box 74 through a liquid channel, when the pumping pipe 85 is positioned above the liquid level of the transformer oil, gas in a gap of the transformer is pumped to flow into the detection box 74, and the sensor detects the temperature in the gap of the transformer;
step three: sending the detection data of the oil temperature and the gas temperature of the transformer in the detection box 74 in the step two to the integrated circuit board 72;
step four: the integrated circuit board 72 transmits data to the monitoring station by wireless.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (5)
1. The transformer oil gas temperature on-line monitoring device comprises a transformer outer shell (1), a transformer inner shell (2), an iron core (3) and a coil (4), wherein the coil (4) is wound on the iron core (3), the coil (4) and the iron core (3) are arranged in the transformer inner shell (2), the transformer outer shell (1) covers the transformer inner shell (2), bottom openings of the transformer outer shell (1) and the transformer inner shell (2) are fixed on a bottom plate (5), and a detection channel is reserved between the transformer outer shell (1) and the transformer inner shell (2);
the transformer oil is poured into the transformer inner shell (2), a gap is reserved between the liquid level of the transformer oil and the top wall of the transformer inner shell (2), the iron core (3) and the coil (4) are immersed in the transformer oil, the transformer oil detection device is characterized in that an equipment support frame (6) is arranged in a detection channel, detection equipment (7) is placed on the equipment support frame (6), an oil-gas extraction detection assembly (8) connected with the detection equipment (7) penetrates into the transformer inner shell (2), wherein the detection equipment (7) drives the oil-gas extraction detection assembly (8) to rotate so as to detect the temperature of the transformer oil, the transformer oil and gas in the gap are extracted into the detection equipment (7) at the same time, and the temperature of the transformer oil and the temperature of the gas in the gap are secondarily detected in the detection equipment (7);
after the detection equipment (7) detects the temperature data of the oil gas of the transformer, the temperature data of the oil gas of the transformer is wirelessly transmitted to a monitoring station outside the transformer shell (1) and is uploaded to a cloud end through a network;
the oil gas extraction detection assembly (8) comprises a first outer pipe (81), an inner pipe (82), a sleeve (83), a partition plate (84), a pumping pipe (85), an oil temperature detection rod (86), a power-on component (87) and a second outer pipe (88), one ends of the first outer pipe (81) and the second outer pipe (88) are inserted into and fixed in the sleeve (83) in a detection channel, the first outer pipe (81) and the second outer pipe (88) are fixed through a rod body, and a sealing ring is further arranged at the joint of the first outer pipe (81) and the sleeve (83) and the joint of the second outer pipe (88) and the sleeve (83);
the other end port of the second outer pipe (88) is meshed with a bevel gear of a shaft of a motor (71) through a bevel gear, the other end of the first outer pipe (81) is inserted into the transformer inner shell (2), the opening of the port is closed, and a sensor for detecting the oil temperature is fixed on the closed surface;
the inner tube (82) penetrates through a second outer tube (88) positioned in the detection channel, the sleeve (83) and the inner tube (81) which is inserted into the first outer tube and abuts against the closed surface, and the partition plate (84) partitions the inner cavity of the inner tube (82) and forms a liquid channel and a wiring harness channel respectively;
the outer wall of a first outer tube (81) in the transformer inner shell (2) is further fixed with a symmetrical pumping tube (85) and an oil temperature detection rod (86), wherein the pumping tube (85) is communicated with one end of a liquid channel, the other end of the liquid channel is communicated with an inner cavity of a sleeve (83), a port of the oil temperature detection rod (86) is connected with a sensor, a lead connected with the sensor extends to a wiring harness channel along the inside of the oil temperature detection rod (86) and is connected with a sensor wiring harness for detecting oil temperature in parallel on a power-on component (87), the power-on component (87) is electrically connected with a storage battery (75), and the sensor for detecting oil temperature wirelessly transmits data with an integrated circuit board (72);
a pipeline communicated with the sleeve (83) is connected with an inlet of the pump body (73), an outlet of the pump body (73) is connected in the detection box (74), and an oil discharge pipe connected to the bottom of the detection box (74) extends into the transformer inner shell (2);
the electrifying part (87) comprises a first electrifying electrode sheet (871), an insulating spring (872), a second electrifying electrode sheet (873) and a conductive rod (874), the first electrifying electrode sheet (871) is fixed in the wire harness channel, the first electrifying electrode sheet (871) is electrically connected with a lead of the sensor, the conductive rod (874) penetrates into the inner tube (82) to be connected with one surface of the second electrifying electrode sheet (873), the other surface of the second electrifying electrode sheet (873) is contacted with the first electrifying electrode sheet (871), and a wire harness connected with the conductive rod (874) is connected to the storage battery (75);
the insulating spring (872) is sleeved outside the conductive rod (874), and the insulating spring (872) is connected with the inner wall of the detection channel;
the oil temperature detection rod (86) and the extraction pipe (85) have the same diameter, and the oil temperature detection rod (86) and the extraction pipe (85) rotate to be positioned in the gap at the top of the transformer inner shell (2) at the highest position.
2. The transformer oil gas temperature online monitoring device according to claim 1, wherein the equipment support frame (6) comprises an upper transverse plate (61), a lower transverse plate (62) and a connecting rod (63), the upper transverse plate (61) and the lower transverse plate (62) are horizontally fixed in the detection channel, and the upper transverse plate (61) and the lower transverse plate (62) are fixed through the connecting rod (63).
3. The transformer oil gas temperature online monitoring device according to claim 1, characterized in that the detection equipment (7) comprises a motor (71), an integrated circuit board (72), a pump body (73), a detection box (74) and a storage battery (75), wherein the motor (71), the integrated circuit board (72) and the storage battery (75) are arranged on the lower transverse plate (62) side by side, and the pump body (73) and the detection box (74) are arranged on the upper transverse plate (61) side by side;
the detection box (74) is internally provided with a sensor for detecting the oil gas temperature of the transformer, wherein a wire harness connected with the sensor penetrates out of the detection box (74) to be connected with the integrated circuit board (72), and the integrated circuit board (72) is further connected with the motor (71) through a wire.
4. The on-line monitoring device for the oil and gas temperature of the transformer as claimed in claim 3, wherein the integrated circuit board (72) integrates a wireless module for wirelessly transmitting the measured oil and gas temperature data of the transformer to a monitoring site.
5. The method for the transformer oil gas temperature online monitoring device according to any one of claims 1 to 4, characterized by comprising the following steps:
s1: the sensor of the first outer pipe (81) transmits the detected transformer oil temperature data to the integrated circuit board (72) in a wireless mode in real time;
s2: the motor (71) drives the first outer pipe (81), the second outer pipe (88) and the inner pipe (82) to synchronously rotate through the bevel gear, in the rotating process, the pumping pipe (85) is located below the liquid level of transformer oil, the transformer oil is pumped to flow into the detection box (74) through the liquid channel, the pumping pipe (85) is located above the liquid level of the transformer oil, gas in a gap of the transformer is pumped to flow into the detection box (74), and the sensor detects the temperature in the gap of the transformer;
s3: transmitting the transformer oil temperature and gas temperature detection data in the detection box (74) in S2 to the integrated circuit board (72);
s4: the integrated circuit board (72) transmits data to the monitoring station by wireless.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211325000.XA CN115540950B (en) | 2022-10-27 | 2022-10-27 | Transformer oil gas temperature online monitoring device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211325000.XA CN115540950B (en) | 2022-10-27 | 2022-10-27 | Transformer oil gas temperature online monitoring device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115540950A CN115540950A (en) | 2022-12-30 |
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