CN114371193A - Transformer fault diagnosis device - Google Patents
Transformer fault diagnosis device Download PDFInfo
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- CN114371193A CN114371193A CN202210016956.5A CN202210016956A CN114371193A CN 114371193 A CN114371193 A CN 114371193A CN 202210016956 A CN202210016956 A CN 202210016956A CN 114371193 A CN114371193 A CN 114371193A
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- combustion container
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
- G01N25/22—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures
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Abstract
The invention discloses a transformer fault diagnosis device, which comprises: a combustion vessel; an igniter; the air inlet pipe is connected with the combustion container and a connecting pipe of the transformer tank cover and the oil storage cabinet, and a first switch valve is arranged on the air inlet pipe; the vacuum pump is connected with the combustion container, and a hose on the vacuum pump is provided with a second switch valve; the monitoring device is used for feeding back the pressure change in the combustion container before and after the combustion of the combustible gas in the combustion container; a first time relay, a second time relay, a third time relay and a fourth time relay; a controller; the breather pipe is arranged on the combustion container, and a third switch valve is arranged on the breather pipe. According to the invention, the pressure change in the combustion container is repeatedly fed back to the working personnel through the monitoring device, and the working personnel can diagnose whether the transformer has a fault or not by observing the pressure change difference in the combustion container.
Description
Technical Field
The invention relates to the technical field of fault diagnosis of equipment in shops, in particular to a transformer fault diagnosis device.
Background
The power equipment mainly comprises power generation equipment and power supply equipment, wherein the power generation equipment mainly comprises a power station boiler, a steam turbine, a gas turbine, a water turbine, a generator, a transformer and the like, and the power supply equipment mainly comprises power transmission lines, mutual inductors, contactors and the like with various voltage grades. The failure of the power transformer is caused in part by the large heat productivity and the over-high temperature of the original components. The existing relatively mature transformer on-line monitoring and fault diagnosis technology adopts a characteristic gas method for analyzing dissolved gas in oil. The fault diagnosis based on the dissolved gas in the oil is usually to judge the fault according to the content of various gases (or the ratio of one gas to another gas) at a certain moment, the content of the dissolved gas in the oil is only a static characterization quantity, when the fault is serious, the content of the dissolved gas in the oil is obviously increased, the determination of the proper content of the dissolved gas in the oil as the critical value of the fault diagnosis is difficult, certain hysteresis exists in the fault diagnosis, and meanwhile, the online monitoring and fault diagnosis equipment of the transformer is expensive, has more parts and is relatively difficult to maintain subsequently.
Disclosure of Invention
The present invention is directed to solve the above problems, and an object of the present invention is to provide a transformer fault diagnosis apparatus.
The technical scheme of the invention is as follows: a transformer fault diagnosis apparatus comprising:
a combustion vessel;
one end of a plurality of spark plugs on the igniter is arranged in the combustion container;
the gas inlet pipe is connected with the combustion container and a connecting pipe of the transformer tank cover and the oil storage cabinet, and a first switch valve is arranged on the gas inlet pipe;
the vacuum pump is connected with the combustion container, and a hose of the vacuum pump is provided with a second switch valve;
the monitoring device is used for feeding back the pressure change in the combustion container before and after the combustion of the combustible gas in the combustion container;
a first time relay, a second time relay, a third time relay and a fourth time relay;
a controller;
and the breather pipe is arranged on the combustion container, and a third on-off valve is arranged on the breather pipe.
Preferably, the monitoring device comprises a guide pipe, a piston, a guide rod, a camera and a buffer device, the guide pipe is arranged on the combustion container, the piston can slide in the guide pipe, the guide rod is provided with scales, one end of the guide rod is connected with the piston, the camera is used for shooting the position of the guide rod after moving relative to the guide pipe, and the buffer device is used for driving the guide rod to return to the original position.
Preferably, the buffering device comprises two supporting blocks, two guide rods, two springs and a baffle, the guide rods are arranged on the supporting blocks, the springs are sleeved on the guide rods, and the baffle can slide on the guide rods.
Preferably, the air inlet pipe comprises a first air pipe and a second air pipe, and the first air pipe and the second air pipe are detachably connected; the combustion container is characterized by further comprising a driving device, a first sensor, a second sensor and a support, wherein the driving device is used for driving the combustion container to move back and forth on the support, and the first sensor and the second sensor are arranged on the support.
Preferably, the first air pipe is chamfered to be in a circular truncated cone shape.
Preferably, the bottom of the combustion container is provided with a plurality of sliding blocks, and the bracket is provided with at least two sliding grooves.
Preferably, the driving device comprises two motors, two rotary drums and two sections of pull ropes, the rotary drums are arranged on the output ends of the motors, and the pull ropes are connected with the rotary drums and the combustion container.
The invention has the beneficial effects that: according to the invention, the pressure change in the combustion container is repeatedly fed back to the working personnel through the monitoring device, and the working personnel can diagnose whether the transformer has a fault or not by observing the pressure change difference in the combustion container.
Drawings
FIG. 1 is a cross-sectional view of the overall construction of a preferred embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
figure 3 is a schematic view of a combustion vessel in a preferred embodiment of the invention.
Reference numerals: the combustion device comprises a combustion container 1, a slider 101, an igniter 2, an air inlet pipe 3, a first on-off valve 31, a first air pipe 32, a second air pipe 33, a vacuum pump 4, a second on-off valve 41, a monitoring device 5, a guide pipe 51, a piston 52, a guide rod 53, a camera 54, a buffering device 55, a supporting block 551, a guide rod 552, a spring 553, a baffle 554, a first time relay 6, a second time relay 7, a third time relay 8, a fourth time relay 9, a controller 10, an air pipe 11, a third on-off valve 111, a driving device 12, a motor 121, a drum 122, a pull rope 123, a first sensor 13, a second sensor 14, a bracket 15 and a sliding groove 151.
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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, a transformer fault diagnosis apparatus includes:
a combustion vessel 1;
one end of a plurality of spark plugs on the igniter 2 is arranged in the combustion container 1;
the air inlet pipe 3 is connected with the combustion container 1 and a connecting pipe of the transformer tank cover and the oil conservator, and a first switch valve 31 is arranged on the air inlet pipe 3;
a vacuum pump 4 connected to the combustion container 1, wherein a second on-off valve 41 is provided on a hose of the vacuum pump 4;
the monitoring device 5 is used for feeding back the pressure change in the combustion container 1 before and after the combustion of the combustible gas in the combustion container 1;
a first time relay 6, a second time relay 7, a third time relay 8 and a fourth time relay 9;
a controller 10;
the breather pipe 11 is provided in the combustion container 1, and the breather pipe 11 is provided with a third on/off valve 111. In the invention, when in use, when the preset value of the first time relay 6 is reached, the first time relay 6 sends a signal to the controller 10, the controller 10 controls the second switch valve 41 to be opened, and simultaneously controls the vacuum pump 4 and the second time relay 7 to work, the vacuum pump 4 pumps part of air in the combustion container 1, when the second time relay 7 reaches the preset value, the second time relay 7 sends a signal to the controller 10, the controller 10 controls the second switch valve 41 to be closed and controls the vacuum pump 4 to stop working, the controller 10 controls the first switch valve 31 to be opened and simultaneously controls the third time relay 8 to work, because the internal pressure of the combustion container 1 is lower than the external pressure, the gas in the connecting pipe between the transformer box cover and the oil conservator flows to the combustion container 1, when the third time relay 8 reaches the preset value, the signal is sent to the controller 10, the controller 10 controls the first switch valve 31 to be closed, the controller 10 controls the fourth time relay 9 and the igniter 2 to work, a plurality of spark plugs on the igniter 2 ignite to burn gas in the combustion container 1, when the fourth time relay 9 reaches a preset value, a signal is sent to the controller 10, the controller 10 controls the igniter 2 to stop working, the first time relay 6 and the monitoring device 5 are controlled to work, the third switch valve 111 is controlled to be opened, oxygen is consumed due to gas combustion, pressure intensity in the combustion container 1 is reduced, pressure intensity change is reflected to external personnel through the monitoring device 5, when the preset value of the first time relay 6 reaches, the first time relay 6 sends a signal to the controller 10, the controller 10 controls the second switch valve 41 to be opened, the third switch valve 111 to be closed, the vacuum pump 4 and the second time relay 7 to work simultaneously, the operation is repeated, and the pressure intensity change in the combustion container 1 is repeatedly fed back to the working personnel through the monitoring device 5, the staff diagnoses whether the transformer has a fault by observing the pressure variation difference in the combustion container 1. Specifically, the igniter 2 is a conventional igniter in the market, and comprises a power supply, an ignition coil, a distributor, an ignition switch, a spark plug, an additional resistor, a short-circuit device of the additional resistor and high and low voltage leads; the combustion vessel 1 is a metal vessel.
As a preferred embodiment of the present invention, it may also have the following additional technical features:
in this embodiment, the monitoring device 5 includes a guide tube 51, a piston 52, a guide rod 53, a camera 54 and a buffer device 55, the guide tube 51 is disposed on the combustion container 1, the piston 52 is slidable in the guide tube 51, the guide rod 53 is provided with a scale, one end of the guide rod is connected to the piston 52, the camera 54 is used for photographing the position of the guide rod 53 after moving relative to the guide tube 51, and the buffer device 55 is used for driving the guide rod 53 to return to the original position. Specifically, the monitoring device 5 further comprises a GPRS module, scales are arranged on the guide rod 53, when the fourth time relay 9 reaches a preset value, a signal is sent to the controller 10, the controller 10 controls the igniter 2 to stop working, and controls the first time relay 6 and the camera 54 to work, because oxygen is consumed by gas combustion, the pressure in the combustion container 1 is reduced, the piston 52 moves to the left in the guide pipe 51, after the piston 52 stops moving, the scales on the guide rod 53 are aligned with one end of the guide pipe 51, the camera 54 takes a picture, data is transmitted out through the GPRS module, after the third switch valve 111 is opened, the pressure in the combustion container 1 is the same as that in the outside, and the buffer device 55 drives the guide rod 53 to return to the original position.
In this embodiment, the buffering device 55 includes two supporting blocks 551, two guide rods 552, two springs 553, and a baffle 554, wherein the guide rods 552 are disposed on the supporting blocks 551, the springs 553 are disposed on the guide rods 552, and the baffle 554 can slide on the guide rods 552. Specifically, support blocks 551 are disposed on the conduit 51.
In the present embodiment, the air intake tube 3 includes a first air tube 32 and a second air tube 33, and the first air tube 32 and the second air tube 33 are detachably connected; the gas burner further comprises a driving device 12, a first sensor 13, a second sensor 14 and a support 15, wherein the driving device 12 is used for driving the combustion container 1 to move back and forth on the support 15, the first sensor 13 and the second sensor 14 are arranged on the support 15, when gas in the combustion container 1 is combusted, the driving device 12 drives the combustion container 1 to be away from the first gas pipe 32, and when the first switch valve 31 or the combustion container 1 is damaged, the gas in the first gas pipe 32 cannot be ignited. Specifically, the camera 54 is disposed on the stand 15.
In this embodiment, the first air tube 32 is chamfered to have a truncated cone shape, so that the first air tube 32 can be inserted into the second air tube 33.
In this embodiment, the bottom of the combustion container 1 is provided with a plurality of sliding blocks 101, the support 15 is provided with at least two sliding grooves 151, and the sliding blocks 101 are matched with the sliding grooves 151.
In this embodiment, the driving device 12 includes two motors 121, two drums 122 and two segments of pull ropes 123, the drum 122 is disposed at the output end of the motor 121, the pull ropes 123 connect the drum 122 and the combustion container 1, when the third time relay 8 reaches a preset value, a signal is sent to the controller 10, the controller 10 controls the first switch valve 31 to close, the controller 10 controls the fourth time relay 9, the igniter 2 and one of the motors 121 to operate, one of the motors 121 tightens the pull ropes 123, the other motor 121 discharges the pull ropes 123 to keep the combustion container 1 away from the first gas pipe 32, when the first sensor 13 senses the combustion container 1, a signal is sent to the controller 10 to control the operation motor 121 to stop operation, when the fourth time relay 9 reaches a preset value, a signal is sent to the controller 10, the controller 10 controls the other motor 121 to operate to tighten the pull ropes 123, the previous operation motor 121 discharges the pull ropes 123, a second air pipe 33 on the combustion container 1 is connected to the first air pipe 32, and when the second sensor 14 senses the combustion container 1, a signal is sent to the controller 10 to control the operation motor 121 to stop operating.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A transformer fault diagnosis apparatus, characterized by comprising:
a combustion vessel (1);
one end of a plurality of spark plugs on the igniter (2) is arranged in the combustion container (1);
the air inlet pipe (3) is connected with the combustion container (1) and a connecting pipe of the transformer tank cover and the oil conservator, and a first switch valve (31) is arranged on the air inlet pipe (3);
the vacuum pump (4) is connected with the combustion container (1), and a hose of the vacuum pump (4) is provided with a second switch valve (41);
the monitoring device (5) is used for feeding back the pressure change in the combustion container (1) before and after the combustion of the combustible gas in the combustion container (1);
a first time relay (6), a second time relay (7), a third time relay (8) and a fourth time relay (9);
a controller (10);
and the vent pipe (11) is arranged on the combustion container (1), and a third on-off valve (111) is arranged on the vent pipe (11).
2. The transformer fault diagnosis device according to claim 1, wherein: the monitoring device (5) comprises a guide pipe (51), a piston (52), a guide rod (53), a camera (54) and a buffer device (55), wherein the guide pipe (51) is arranged on the combustion container (1), the piston (52) can slide in the guide pipe (51), scales are arranged on the guide rod (53), one end of the scale is connected with the piston (52), the camera (54) is used for shooting the position of the guide rod (53) relative to the guide pipe (51) after movement, and the buffer device (55) is used for driving the guide rod (53) to return to the original position.
3. The transformer fault diagnosis device according to claim 2, wherein: the buffer device (55) comprises two supporting blocks (551), two guide rods (552), two springs (553) and a baffle (554), wherein the guide rods (552) are arranged on the supporting blocks (551), the springs (553) are sleeved on the guide rods (552), and the baffle (554) can slide on the guide rods (552).
4. The transformer fault diagnosis device according to claim 1, wherein: the air inlet pipe (3) comprises a first air pipe (32) and a second air pipe (33), and the first air pipe (32) and the second air pipe (33) are detachably connected; the combustion container (1) is characterized by further comprising a driving device (12), a first sensor (13), a second sensor (14) and a support (15), wherein the driving device (12) is used for driving the combustion container (1) to move back and forth on the support (15), and the first sensor (13) and the second sensor (14) are arranged on the support (15).
5. The transformer fault diagnosis device according to claim 4, wherein: the first air pipe (32) is in a round table shape after chamfering treatment.
6. The transformer fault diagnosis device according to claim 4, wherein: the bottom of the combustion container (1) is provided with a plurality of sliding blocks (101), and the support (15) is provided with at least two sliding grooves (151).
7. The transformer fault diagnosis device according to claim 4, wherein: the driving device (12) comprises two motors (121), two rotary drums (122) and two sections of pull ropes (123), the rotary drums (122) are arranged at the output ends of the motors (121), and the pull ropes (123) are connected with the rotary drums (122) and the combustion container (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210016956.5A CN114371193A (en) | 2022-01-07 | 2022-01-07 | Transformer fault diagnosis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210016956.5A CN114371193A (en) | 2022-01-07 | 2022-01-07 | Transformer fault diagnosis device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114371193A true CN114371193A (en) | 2022-04-19 |
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ID=81143818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210016956.5A Pending CN114371193A (en) | 2022-01-07 | 2022-01-07 | Transformer fault diagnosis device |
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| CN (1) | CN114371193A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08178276A (en) * | 1994-12-27 | 1996-07-12 | Tokyo Gas Co Ltd | Combustion controlling method |
| CN205119035U (en) * | 2015-11-13 | 2016-03-30 | 甘肃邦众工程技术有限公司 | Pluralities of fuel gas combustion ware |
| CN211626053U (en) * | 2019-12-04 | 2020-10-02 | 南阳中联卧龙水泥有限公司 | Kiln head combustor positioner |
| CN111999355A (en) * | 2020-07-15 | 2020-11-27 | 沈阳明远电气科技有限公司 | Transformer combustible gas online detection device and method |
| CN112034088A (en) * | 2020-09-15 | 2020-12-04 | 国网河南省电力公司检修公司 | Transformer fault gas monitoring equipment |
| CN212567761U (en) * | 2020-06-09 | 2021-02-19 | 江苏炬力电机有限公司 | Motor internal pressure testing device |
| CN113008947A (en) * | 2021-02-22 | 2021-06-22 | 国网陕西省电力公司电力科学研究院 | Online monitoring device and method for free gas flammability in transformer gas relay |
-
2022
- 2022-01-07 CN CN202210016956.5A patent/CN114371193A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08178276A (en) * | 1994-12-27 | 1996-07-12 | Tokyo Gas Co Ltd | Combustion controlling method |
| CN205119035U (en) * | 2015-11-13 | 2016-03-30 | 甘肃邦众工程技术有限公司 | Pluralities of fuel gas combustion ware |
| CN211626053U (en) * | 2019-12-04 | 2020-10-02 | 南阳中联卧龙水泥有限公司 | Kiln head combustor positioner |
| CN212567761U (en) * | 2020-06-09 | 2021-02-19 | 江苏炬力电机有限公司 | Motor internal pressure testing device |
| CN111999355A (en) * | 2020-07-15 | 2020-11-27 | 沈阳明远电气科技有限公司 | Transformer combustible gas online detection device and method |
| CN112034088A (en) * | 2020-09-15 | 2020-12-04 | 国网河南省电力公司检修公司 | Transformer fault gas monitoring equipment |
| CN113008947A (en) * | 2021-02-22 | 2021-06-22 | 国网陕西省电力公司电力科学研究院 | Online monitoring device and method for free gas flammability in transformer gas relay |
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