CN217033804U - Transformer gas detection device and transformer - Google Patents
Transformer gas detection device and transformer Download PDFInfo
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- CN217033804U CN217033804U CN202122635214.4U CN202122635214U CN217033804U CN 217033804 U CN217033804 U CN 217033804U CN 202122635214 U CN202122635214 U CN 202122635214U CN 217033804 U CN217033804 U CN 217033804U
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Abstract
The utility model provides a transformer gas detection device and a transformer, wherein the bottom of a gas collection chamber of a gas collection unit in the transformer gas detection device is communicated with an oil inlet pipe of the transformer, and a liquid level meter is fixed on the gas collection chamber and is connected with a control unit so as to send liquid level information in the gas collection chamber to the control unit; the gas pump of the detection unit pumps the gas in the gas collecting chamber into the detection cavity, and the detection sensor is used for detecting the gas in the detection cavity and sending gas detection information to the control unit; the control unit receives the liquid level information and the gas detection information and sends the liquid level information and the gas detection information to the control background through the communication unit. The method can acquire detailed information of the transformer fault in real time, is convenient for rapid targeted processing before or after the fault occurs, and improves the speed of fault processing, thereby effectively preventing further expansion of the fault and improving the safety of the transformer and workers.
Description
Technical Field
The utility model relates to the field of oil immersed transformers, in particular to a transformer gas detection device and a transformer.
Background
The oil immersed transformer mainly comprises an iron core, a winding, an oil tank, an oil conservator, an insulating sleeve, a tap switch, a gas relay and the like, wherein the iron core and a winding are all immersed in transformer oil, and the transformer oil plays roles in insulation and cooling. In the normal operation process of the transformer, the transformer oil can be gradually aged and decomposed to generate less organic gases such as low molecular hydrocarbons and the like and inorganic gases such as carbon monoxide, carbon dioxide and the like. When the transformer fails, the hydrocarbon organic gas or the carbon inorganic gas generated by the decomposition of the transformer oil is obviously increased, and the combination and the content of the gases are often closely related to the failure type of the transformer.
In the prior art, in order to avoid continuous work of a transformer under a fault, a gas relay is arranged, gas in the transformer is collected by the gas relay, corresponding action is carried out according to the capacity of the gas, so as to protect the transformer when the fault occurs, however, the method cannot acquire information of the fault of the transformer, cannot acquire real-time information of the fault of the transformer, and is difficult to timely and effectively process before or after the fault occurs.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a transformer gas detection device and a transformer, wherein a gas collection unit is arranged on an oil inlet pipe, gas is collected by using a gas collection chamber in the gas collection unit, the gas capacity information in the gas collection chamber is obtained, the collected gas is detected by a detection unit, and the obtained detection information is sent to a control background, so that the detailed information of the transformer fault can be obtained in real time, the targeted processing can be rapidly performed before or after the fault occurs, the fault processing speed is increased, further expansion of the accident is effectively prevented, and the safety of the transformer and workers is improved.
In order to solve the above problems, the present invention adopts a technical solution as follows: a transformer gas detection apparatus, comprising: the device comprises a gas acquisition unit, a detection unit, a control unit and a communication unit; the gas collection unit comprises a gas collection chamber and a liquid level meter, the bottom of the gas collection chamber is communicated with an oil inlet pipe of the transformer, and the liquid level meter is fixed on the gas collection chamber and connected with the control unit so as to send liquid level information in the gas collection chamber to the control unit; the detection unit comprises an air pump, a detection cavity and a detection sensor, the air pump pumps the air in the air collection chamber into the detection cavity, and the detection sensor is used for detecting the air in the detection cavity and sending air detection information to the control unit; the control unit receives the liquid level information and the gas detection information and sends the liquid level information and the gas detection information to the control background through the communication unit.
Further, a gas collection port and a transformer oil collection port are further arranged on the side face of the gas collection chamber, the transformer oil collection port is arranged at the bottom of the gas collection chamber, the gas collection port is arranged on the adjacent side or the opposite side of the transformer oil collection port, and the gas collection port and the opening of the transformer oil collection port are sealed through flexible air-proof materials.
Furthermore, the side of the gas collecting chamber is also provided with an observation window, and the observation window is transparent and is marked with liquid level scales.
Furthermore, the gas collection unit further comprises a gas collecting tube, one end of the gas collecting tube is communicated with the bottom of the gas collecting chamber, the other end of the gas collecting tube extends into the oil inlet tube, and the part, located inside the oil inlet tube, of the gas collecting tube protrudes out of the wall of the oil inlet tube.
Furthermore, the detection unit further comprises a first exhaust pipe and a second exhaust pipe, one end of the first exhaust pipe is connected with the top of the gas collection chamber, the other end of the first exhaust pipe is connected with the gas exhaust end of the gas pump, one end of the second exhaust pipe is connected with the gas exhaust end of the gas pump, and the other end of the second exhaust pipe is connected with the detection cavity.
Further, the gas collection unit further comprises a vacuum pump, the vacuum pump is fixed on the detection cavity and connected with the control unit, and the control unit evacuates gas in the detection cavity through the vacuum pump.
Further, the detection sensor includes any one of a gas chromatograph, a photoacoustic spectroscopy sensor, and a surface acoustic wave gas sensor.
Further, the control unit comprises a relay control module, the relay control module is connected with a gas relay of the transformer, and the control unit triggers the gas relay to act through the relay control module.
Further, the control unit still includes treater, storage module, the treater respectively with gaseous collection unit, detecting element and storage module are connected, the treater gathers liquid level information, the gaseous detection information of gaseous collection unit, detecting element transmission, and will liquid level information, gaseous detection information storage are in storage module.
Based on the same inventive concept, the utility model further provides a transformer, which comprises a transformer body, an oil inlet pipe connected with the transformer body and a transformer gas detection device, wherein the oil inlet pipe is used for transmitting the transformer oil in the oil conservator to the transformer, and the transformer gas detection device comprises the transformer gas detection device.
Compared with the prior art, the utility model has the beneficial effects that: the oil inlet pipe is provided with the gas collection unit, the gas collection chamber in the gas collection unit is used for collecting gas, gas capacity information in the gas collection chamber is obtained, the collected gas is detected through the detection unit, the obtained detection information is sent to the control background, detailed information of transformer faults can be obtained in real time, targeted processing can be conducted quickly before or after the faults occur, the speed of fault processing is increased, further expansion of accidents is effectively prevented, and safety of transformers and workers is improved.
Drawings
FIG. 1 is a schematic diagram of a gas detection apparatus for a transformer according to an embodiment of the present invention;
fig. 2 is a structural diagram of an embodiment of the transformer of the present invention.
Detailed Description
The present invention is further described with reference to the accompanying drawings and the detailed description, and it should be noted that, in the case of no conflict, any combination between the embodiments or technical features described below may form a new embodiment.
Referring to fig. 1, in which fig. 1 is a structural diagram of an embodiment of a transformer gas detection apparatus according to the present invention. The transformer gas detection device of the present invention will be described in detail with reference to fig. 1.
In this embodiment, the transformer gas detection apparatus includes: the device comprises a gas acquisition unit, a detection unit, a control unit and a communication unit; the gas collection unit comprises a gas collection chamber and a liquid level meter, wherein the bottom of the gas collection chamber is communicated with an oil inlet pipe of the transformer, and the liquid level meter is fixed on the gas collection chamber and connected with the control unit so as to send liquid level information in the gas collection chamber to the control unit; the detection unit comprises an air pump, a detection cavity and a detection sensor, the air pump pumps the air in the air collection chamber into the detection cavity, and the detection sensor is used for detecting the air in the detection cavity and sending the air detection information to the control unit; the control unit receives the liquid level information and the gas detection information and sends the liquid level information and the gas detection information to the control background through the communication unit.
In this embodiment, the communication unit may be a wired communication module or a wireless communication module, wherein the wireless communication module includes LORA, GPRS and other long-distance wireless communication modules. In other embodiments, the wireless communication module may also be a short-range wireless communication module such as bluetooth, WiFi, ZigBee, or the like.
In this embodiment, a gas collection port and a transformer oil collection port are further arranged on the side surface of the gas collection chamber, the transformer oil collection port is arranged at the bottom of the gas collection chamber, the gas collection port is arranged on the adjacent side or the opposite side of the transformer oil collection port, and openings of the gas collection port and the transformer oil collection port are sealed through flexible air-impermeable materials. The flexible air-impermeable material can be silica gel, cork and other materials which can allow a needle tube for collecting transformer oil or gas to penetrate.
In this embodiment, the gas collection port and the transformer oil collection port are cylindrical, one end of each of the gas collection ports is communicated with the inside of the gas collection chamber, and the other end of each of the gas collection ports extends in a direction away from the gas collection chamber.
The side of the gas collection chamber is also provided with an observation window, the observation window is transparent and marked with liquid level scales, and the liquid level in the gas collection chamber is observed through the observation window. One end of the liquid level meter is exposed out of the gas collection chamber, and the other end of the liquid level meter penetrates through the gas collection chamber and extends into the gas collection chamber. The liquid level information is transmitted and collected in a wired connection mode with the control unit.
In this embodiment, the level gauge can also send liquid level early warning information to the control unit when the liquid level in the gas collecting chamber is less than the preset value, and the control unit controls the detection unit to work in order to detect the type and the proportion of gas after receiving the liquid level early warning information.
In this embodiment, the gas collecting unit further includes a gas collecting tube, one end of the gas collecting tube is communicated with the bottom of the gas collecting chamber, the other end of the gas collecting tube extends into the oil inlet tube, and the part of the gas collecting tube located inside the oil inlet tube protrudes out of the wall of the oil inlet tube.
In a specific embodiment, openings are arranged on two sides of one end, perpendicular to the direction of the oil inlet pipe, of the gas collecting pipe, which is positioned in the oil inlet pipe, and a blocking piece is arranged in the middle of the two openings, so that gas in the transformer oil is guided to the gas collecting chamber through the blocking piece.
The detection unit further comprises a first exhaust pipe and a second exhaust pipe, one end of the first exhaust pipe is connected with the top of the gas collection chamber, the other end of the first exhaust pipe is connected with the gas exhaust end of the gas pump, one end of the second exhaust pipe is connected with the gas exhaust end of the gas pump, and the other end of the second exhaust pipe is connected with the detection cavity.
In this embodiment, the detection unit is further provided with a pressure detection sensor, a detection end of the pressure detection sensor is arranged in the detection cavity, and the control unit detects the pressure in the detection cavity through the pressure detection sensor and controls the air pump to stop working when the detected pressure is greater than a preset pressure.
In this embodiment, the gas collection unit further includes a vacuum pump, the vacuum pump is fixed on the detection chamber and connected to the control unit, and the control unit evacuates the gas in the detection chamber through the vacuum pump before pumping the gas in the gas collection chamber through the gas pump.
The second air exhaust pipe is provided with an air valve, and the control unit closes the air valve before controlling the vacuum pump to work and opens the air valve when the air pump works.
In this embodiment, the control unit includes a relay control module, the relay control module is connected with a buchholz relay of the transformer, and the control unit triggers the buchholz relay to operate through the relay control module.
In this embodiment, the control unit further includes a processor and a storage module, the processor is respectively connected with the gas collection unit, the detection unit and the storage module, the processor collects the liquid level information and the gas detection information transmitted by the gas collection unit and the detection unit, and stores the liquid level information and the gas detection information in the storage module.
In this embodiment, the processor may be a single chip, a DSP, an SOC, a CPU, or other devices capable of receiving liquid level information and gas detection information and controlling the operation of the gas collection unit and the detection unit.
In this embodiment, the transformer gas detection device further includes a power supply unit, where the power supply unit includes a battery, the battery is connected to the control unit and supplies power to the control unit, and a processor in the control unit supplies power to the gas collection unit, the detection unit, and the communication unit at a preset frequency or a preset period to reduce power consumption.
Has the advantages that: according to the transformer gas detection device, the gas collection unit is arranged on the oil inlet pipe, the gas collection chamber in the gas collection unit is used for collecting gas, the gas capacity information in the gas collection chamber is obtained, the collected gas is detected by the detection unit, the obtained detection information is sent to the control background, the detailed transformer fault information can be obtained in real time, targeted processing can be conducted quickly and conveniently before or after the fault occurs, the fault processing speed is increased, further expansion of the fault is effectively prevented, and the safety of the transformer and workers is improved.
Based on the same inventive concept, the present invention further provides a transformer, please refer to fig. 2, fig. 2 is a structural diagram of an embodiment of the transformer of the present invention, and the transformer of the present invention is described with reference to fig. 2.
In this embodiment, the transformer includes a transformer body, an oil inlet pipe connected to the transformer body, and a transformer gas detection device, where the oil inlet pipe is used to transmit the transformer oil in the conservator to the transformer, and the transformer gas detection device includes the transformer gas detection device as described in the above embodiments.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A transformer gas detection device, characterized in that, the transformer gas detection device includes: the device comprises a gas acquisition unit, a detection unit, a control unit and a communication unit;
the gas collection unit comprises a gas collection chamber and a liquid level meter, the bottom of the gas collection chamber is communicated with an oil inlet pipe of the transformer, and the liquid level meter is fixed on the gas collection chamber and connected with the control unit so as to send liquid level information in the gas collection chamber to the control unit;
the detection unit comprises an air pump, a detection cavity and a detection sensor, the air pump pumps the air in the air collecting chamber into the detection cavity, and the detection sensor is used for detecting the air in the detection cavity and sending air detection information to the control unit;
and the control unit receives the liquid level information and the gas detection information and sends the liquid level information and the gas detection information to the control background through the communication unit.
2. The transformer gas detection device according to claim 1, wherein a gas collection port and a transformer oil collection port are further provided on a side surface of the plenum chamber, the transformer oil collection port is provided at a bottom of the plenum chamber, the gas collection port is provided at an adjacent side or an opposite side of the transformer oil collection port, and openings of the gas collection port and the transformer oil collection port are sealed by a flexible gas-impermeable material.
3. The transformer gas detection device according to claim 1, wherein a viewing window is further disposed on a side surface of the gas collection chamber, and the viewing window is transparent and marked with liquid level scales.
4. The transformer gas detection device according to claim 1, wherein the gas collection unit further includes a gas collecting tube, one end of the gas collecting tube communicates with the bottom of the gas collection chamber, the other end of the gas collecting tube extends into the oil inlet tube, and a portion of the gas collecting tube located inside the oil inlet tube protrudes out of a tube wall of the oil inlet tube.
5. The transformer gas detection device according to claim 1, wherein the detection unit further includes a first air exhaust pipe and a second air exhaust pipe, one end of the first air exhaust pipe is connected to the top of the collection chamber, the other end of the first air exhaust pipe is connected to the air exhaust end of the air pump, one end of the second air exhaust pipe is connected to the air exhaust end of the air pump, and the other end of the second air exhaust pipe is connected to the detection chamber.
6. The transformer gas detection apparatus according to claim 1, wherein the gas collection unit further comprises a vacuum pump, the vacuum pump is fixed on the detection chamber and connected to the control unit, and the control unit evacuates the gas in the detection chamber through the vacuum pump.
7. The transformer gas detection apparatus of claim 1, wherein the detection sensor comprises any one of a gas chromatograph, a photoacoustic spectroscopy sensor, and a surface acoustic wave gas sensor.
8. The transformer gas detection device according to claim 1, wherein the control unit comprises a relay control module, the relay control module is connected with a gas relay of the transformer, and the control unit triggers the gas relay to act through the relay control module.
9. The transformer gas detection device according to claim 1, wherein the control unit further comprises a processor and a storage module, the processor is respectively connected with the gas collection unit, the detection unit and the storage module, and the processor collects liquid level information and gas detection information transmitted by the gas collection unit and the detection unit and stores the liquid level information and the gas detection information in the storage module.
10. A transformer, characterized in that the transformer comprises a transformer body, an oil inlet pipe connected with the transformer body for transferring transformer oil in an oil conservator to the transformer, and a transformer gas detection device comprising the transformer gas detection device according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122635214.4U CN217033804U (en) | 2021-10-29 | 2021-10-29 | Transformer gas detection device and transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122635214.4U CN217033804U (en) | 2021-10-29 | 2021-10-29 | Transformer gas detection device and transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217033804U true CN217033804U (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122635214.4U Active CN217033804U (en) | 2021-10-29 | 2021-10-29 | Transformer gas detection device and transformer |
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|---|---|
| CN (1) | CN217033804U (en) |
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2021
- 2021-10-29 CN CN202122635214.4U patent/CN217033804U/en active Active
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