CN213902633U - Device for monitoring noise and low-frequency vibration of transformer - Google Patents
Device for monitoring noise and low-frequency vibration of transformer Download PDFInfo
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- CN213902633U CN213902633U CN202022662905.9U CN202022662905U CN213902633U CN 213902633 U CN213902633 U CN 213902633U CN 202022662905 U CN202022662905 U CN 202022662905U CN 213902633 U CN213902633 U CN 213902633U
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Abstract
The utility model discloses a monitoring transformer noise and low frequency vibration device, including the shell body, the top fixed mounting of shell body has the connection roof, and the top fixed mounting of connecting the roof has fastening bolt, and the top fixed mounting of connecting the roof has the components of a whole that can function independently switch, and the top fixed mounting of connecting the roof has noise detection device, and noise detection device's outside fixed mounting has the wind cap, and the top fixed mounting of connecting the roof has acceleration sensor, and one side fixed mounting of shell body has the oil tank body, and the opposite side fixed mounting of shell body has the switch board. Through on the transformer and relevant member rope set up relevant monitoring devices, for example acceleration sensor, laser vibrometer and set up noise sensor in noise detection device's inside to can effectively solve prior art and can't acquire the problem of transformer running state, and can effectively real-time supervision harmonic resonance pours into the operational aspect of back transformer into, and then improves the fault diagnosis efficiency of transformer.
Description
Technical Field
The utility model belongs to the technical field of power equipment on-line monitoring, concretely relates to monitoring transformer noise and low frequency vibrating device.
Background
The transformer is one of core equipment of an alternating current transmission system and a direct current transmission system, and the vibration and noise conditions of the transformer can reflect the running condition of the transformer and can provide judgment basis for fault diagnosis of the transformer.
Under the operation mode of the alternating current and direct current hybrid interconnected large power grid of the current power system, the harmonic resonance generated between the direct current system and the alternating current system is injected into the transformer, so that the vibration of an iron core and a structural member of the transformer and the overall noise condition of the transformer are greatly influenced. The existing transformer monitoring device cannot acquire the vibration and noise conditions of the transformer in the state of operation.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a monitoring transformer noise and low frequency vibrating device to propose current monitoring transformer noise and low frequency vibrating device in solving above-mentioned background art and in the use, because direct current and the harmonic resonance that takes place between the alternating current system pour into behind the transformer, can cause great influence to the vibration of the iron core of transformer, structure and the holistic noise condition of transformer, thereby can't acquire the problem of transformer running state.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a monitoring transformer noise and low frequency vibrating device, includes the shell body, the top fixed mounting of shell body has the connection roof, the top fixed mounting who connects the roof has fastening bolt, the top fixed mounting who connects the roof has the components of a whole that can function independently switch, the top fixed mounting who connects the roof has noise detection device, noise detection device's outside fixed mounting has the windshield, the top fixed mounting who connects the roof has acceleration sensor, one side fixed mounting of shell body has the oil tank body, the opposite side fixed mounting of shell body has the switch board.
Preferably, the connecting base is fixedly mounted on two sides of the bottom of the outer shell, the connecting base is provided with a plurality of connecting threaded holes in the bottom, the connecting base is provided with a limiting groove in one end, and the limiting groove is movably mounted inside the rotating shaft.
Preferably, one side fixed mounting of axis of rotation has first flexible member, the tip fixed mounting of first flexible member has the flexible member of second, the top fixed mounting of the flexible member of second has the connection plate.
Preferably, the top of connecting the plate fixed mounting has the laser vibrometer, the bottom fixed mounting of connecting the plate has the connection fixed block.
Preferably, the top fixed mounting who connects the roof has the terminal, and the outside fixed mounting of terminal has the insulator, the equal fixed mounting in front and the back of shell body has the fin.
Preferably, the control cabinet is internally and fixedly provided with a data acquisition unit, a time domain converter, a judger and a data display.
Compared with the prior art, the beneficial effects of the utility model are that:
1. through set up relevant monitoring devices on the transformer and on relevant member, for example acceleration sensor, laser vibrometer and set up noise sensor in noise detection device's inside, thereby can effectively solve the problem that prior art can't acquire transformer running state, thereby can effectively real-time supervision harmonic resonance pours into the operational aspect of back transformer into, and then improve the fault diagnosis efficiency of transformer, operation and the timely transmission operation of relevant information through relevant detector, thereby not only the timeliness of whole information has been improved, the whole operational stability and the security of transformer have also been guaranteed to the while.
2. Through setting up relevant fin to holistic radiating effect has been improved, and set up relevant connection base and connecting screw hole, make the holistic installation operation of transformer more convenient and high-efficient, it is simple relatively to its structure of this transformer, and the radiating effect is good, has improved the holistic performance of transformer, increase of service life, convenient and fast more in the installation, the maintenance is changed simply, greatly reduced holistic maintenance cost.
Drawings
Fig. 1 is a schematic view of the overall front perspective structure of the present invention;
fig. 2 is a schematic bottom perspective view of the present invention;
fig. 3 is a schematic diagram of the overall operation flow of the present invention.
In the figure: 1. an outer housing; 2. a heat sink; 3. an oil tank body; 4. a control cabinet; 5. connecting the top plate; 6. fastening a bolt; 7. an insulator; 8. a split switch; 9. a noise detection device; 10. a windshield; 11. an acceleration sensor; 12. connecting a base; 13. connecting the threaded hole; 14. a rotating shaft; 15. a first telescopic rod member; 16. a second telescopic rod; 17. connecting the plate members; 18. a laser vibrometer; 19. and connecting the fixing blocks.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a monitoring transformer noise and low frequency vibrating device, including shell body 1, the top fixed mounting of shell body 1 has connection roof 5, the top fixed mounting who connects roof 5 has fastening bolt 6, the top fixed mounting who connects roof 5 has components of a whole that can function independently switch 8, the top fixed mounting who connects roof 5 has noise detection device 9, the outside fixed mounting of noise detection device 9 has windshield 10, the top fixed mounting who connects roof 5 has acceleration sensor 11, one side fixed mounting of shell body 1 has oil tank body 3, the opposite side fixed mounting of shell body 1 has switch board 4.
In the embodiment, the top of the outer shell 1 is fixedly provided with the connecting top plate 5 and the top thereof is fixedly provided with the fastening bolt 6, so that the connection of related device equipment is more stable and firmer, the top of the connecting top plate 5 is fixedly provided with the split switch 8, the power-on and power-off states of related circuits can be controlled, the top of the connecting top plate 5 is fixedly provided with the noise detection device 9 and the outer part thereof is fixedly provided with the windshield 10, the influence of external factors such as wind and the like on noise is reduced, the noise detection device is used for acquiring a time domain signal of the noise of a corresponding transformer part, in addition, the noise detection device 9 is internally provided with the noise sensor, so that the integral detection is more convenient, the top of the connecting top plate 5 is fixedly provided with the acceleration sensor 11 which is firmly arranged on the surfaces of the transformer and parts in a glue or permanent magnet base mode, the other side of the outer shell 1 is fixedly provided with a control cabinet 4, and related devices and instruments are arranged in the control cabinet, so that the running state of the transformer can be reflected in real time, and the fault diagnosis efficiency of the transformer is improved.
Specifically, the bottom both sides of shell body 1 are all fixed mounting have a connection base 12, and a plurality of connecting screw hole 13 have been seted up to the bottom of connecting base 12, and the one end of connecting base 12 has seted up spacing recess, and the inside movable mounting of spacing recess has axis of rotation 14.
In this embodiment, a plurality of connecting screw hole 13 have been seted up through the equal fixed mounting in bottom both sides of shell body 1 and connect the bottom of base 12, make the holistic installation operation of equipment more convenient, spacing recess has been seted up to the one end of connecting base 12, and the inside movable mounting of spacing recess has axis of rotation 14, thereby be convenient for adjust the operation to the whole angle of first flexible member 15, make the laser incident angle of relevant laser vibrometer 18 perpendicular with the face of being surveyed, be convenient for carry out relevant side detection and measurement operation.
Specifically, a first telescopic rod 15 is fixedly mounted on one side of the rotating shaft 14, a second telescopic rod 16 is fixedly mounted at the end of the first telescopic rod 15, and a connecting plate 17 is fixedly mounted at the top of the second telescopic rod 16.
In this embodiment, the end fixed mounting of one side fixed mounting through axis of rotation 14 has first flexible member 15 and first flexible member 15 has the flexible member 16 of second to be convenient for adjust the operation to laser vibrometer 18's whole distance and height, have connection plate 17 to the top fixed mounting of the flexible member 16 of second, make the installation operation of relevant laser vibrometer 18 more convenient.
Specifically, the top of connecting plate 17 is fixed with laser vibrometer 18, and the bottom of connecting plate 17 is fixed with connection fixed block 19.
In this embodiment, the bottom of connecting plate 17 is fixedly provided with connecting fixing block 19, so that laser vibration meter 18 is not affected by external factors such as wind force.
Specifically, a binding post is fixedly mounted at the top of the connecting top plate 5, an insulator 7 is fixedly mounted outside the binding post, and the radiating fins 2 are fixedly mounted on the front surface and the back surface of the outer shell 1.
In this embodiment, the heat dissipation fins 2 are fixedly mounted on the front and back of the outer shell 1, so that the overall heat dissipation effect of the transformer is improved.
Specifically, a data collector, a time domain converter, a judger and a data display are fixedly installed inside the control cabinet 4.
In this embodiment, a data collector, a time domain converter, a judger and a data display are fixedly installed inside the control cabinet 4, wherein the acceleration sensor is connected with the data collector through a related signal transmission unit; the laser vibration meter 18 is connected with the data acquisition unit through a related signal transmission unit; the noise sensor is connected with the data acquisition unit through a related signal transmission unit; the output end of the data acquisition unit is connected with one end of the time domain converter through a related input line end; the other end of the time domain converter is connected with one end of the judger through a related input line end; the other end of the judger is connected with the data display through the related input line end.
The utility model discloses a theory of operation and use flow: when the device is used, firstly, the whole position of the first telescopic rod piece 15 is adjusted through the rotating shaft 14, so that the laser incident angle of the related laser vibration meter 18 is perpendicular to the measured surface, and the related side detection and measurement operation is convenient to perform, then, the first telescopic rod piece 15 fixedly installed on one side of the rotating shaft 14 and the second telescopic rod piece 16 fixedly installed at the end part of the first telescopic rod piece 15 are used for adjusting the whole distance and height of the laser vibration meter 18, when the whole position of the related laser vibration meter 18 is adjusted, the related detection operation can be performed, and a data acquisition device in the control cabinet 4 can acquire time domain signals of the acceleration sensor, the laser vibration meter 18 and a noise sensor in the noise detection device 9 when the transformer operates and send the time domain signals to the time domain converter; the data acquisition device can be an entity instrument of the data acquisition device or a data acquisition chip with a data acquisition function; the time domain converter is used for converting the time domain signal into a frequency domain signal; the time domain converter can be a signal conversion chip with time domain and frequency domain signal conversion functions; the judger is used for comparing the frequency domain signal after the signal conversion with a preset threshold; the preset threshold is a data threshold when the transformer normally operates; a judger, which can be a comparison chip with threshold comparison function; the data display is used for displaying the judgment result in real time; through the description, the operation condition of the transformer after harmonic resonance injection can be obtained in real time by an operator, if the operation of the transformer is monitored to be in an abnormal state, the operator can take measures in time, and can find weak links of the operation of the transformer in real time, so that a guidance direction is provided for fault diagnosis of the transformer.
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 (6)
1. The utility model provides a monitoring transformer noise and low frequency vibrating device, includes shell body (1), its characterized in that: the top fixed mounting of shell body (1) has connection roof (5), the top fixed mounting who connects roof (5) has fastening bolt (6), the top fixed mounting who connects roof (5) has components of a whole that can function independently switch (8), the top fixed mounting who connects roof (5) has noise detection device (9), the outside fixed mounting of noise detection device (9) has wind cap (10), the top fixed mounting who connects roof (5) has acceleration sensor (11), one side fixed mounting of shell body (1) has oil tank body (3), the opposite side fixed mounting of shell body (1) has switch board (4).
2. The apparatus for monitoring transformer noise and low frequency vibrations as set forth in claim 1, wherein: the all fixed mounting in bottom both sides of shell body (1) has connection base (12), a plurality of connecting thread hole (13) have been seted up to the bottom of connecting base (12), spacing recess has been seted up to the one end of connecting base (12), and the inside movable mounting of spacing recess has axis of rotation (14).
3. The apparatus for monitoring transformer noise and low frequency vibrations as set forth in claim 2, wherein: one side fixed mounting of axis of rotation (14) has first flexible member (15), the tip fixed mounting of first flexible member (15) has the flexible member of second (16), the top fixed mounting of the flexible member of second (16) has connection plate (17).
4. A device for monitoring transformer noise and low frequency vibrations as claimed in claim 3, wherein: the top fixed mounting who connects plate (17) has laser vibrometer (18), the bottom fixed mounting who connects plate (17) connects fixed block (19).
5. The apparatus for monitoring transformer noise and low frequency vibrations as set forth in claim 1, wherein: the top fixed mounting who connects roof (5) has the terminal, and the outside fixed mounting of terminal has insulator (7), the equal fixed mounting in front and the back of shell body (1) has fin (2).
6. The apparatus for monitoring transformer noise and low frequency vibrations as set forth in claim 1, wherein: and a data acquisition unit, a time domain converter, a judger and a data display are fixedly arranged in the control cabinet (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022662905.9U CN213902633U (en) | 2020-11-17 | 2020-11-17 | Device for monitoring noise and low-frequency vibration of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022662905.9U CN213902633U (en) | 2020-11-17 | 2020-11-17 | Device for monitoring noise and low-frequency vibration of transformer |
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| CN213902633U true CN213902633U (en) | 2021-08-06 |
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| CN202022662905.9U Active CN213902633U (en) | 2020-11-17 | 2020-11-17 | Device for monitoring noise and low-frequency vibration of transformer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113945269A (en) * | 2021-09-28 | 2022-01-18 | 国网浙江省电力有限公司电力科学研究院 | Visual detection equipment for vibration noise of transformer |
| CN117146971A (en) * | 2023-10-31 | 2023-12-01 | 国网山东省电力公司菏泽供电公司 | Visual detection device for vibration noise of power transformer |
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2020
- 2020-11-17 CN CN202022662905.9U patent/CN213902633U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113945269A (en) * | 2021-09-28 | 2022-01-18 | 国网浙江省电力有限公司电力科学研究院 | Visual detection equipment for vibration noise of transformer |
| CN113945269B (en) * | 2021-09-28 | 2024-06-04 | 国网浙江省电力有限公司电力科学研究院 | Visual detection equipment for vibration noise of transformer |
| CN117146971A (en) * | 2023-10-31 | 2023-12-01 | 国网山东省电力公司菏泽供电公司 | Visual detection device for vibration noise of power transformer |
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