CN-224217322-U - Transformer monitoring module and transformer

Abstract

The utility model provides a transformer monitoring module and a transformer, wherein an overhaul hole is formed in a transformer body, an overhaul cover is arranged on the overhaul hole, the transformer monitoring module comprises an oil outlet, an oil return port and a monitoring pipeline, the oil outlet is communicated with the inside of the transformer body, the oil return port is communicated with the inside of the transformer body, the monitoring pipeline is respectively communicated with the oil outlet and the oil return port, monitoring equipment is arranged on the monitoring pipeline, and the oil outlet and/or the oil return port are/is formed in the overhaul cover. The transformer monitoring module solves the technical problems of higher maintenance cost and lower maintenance efficiency of the transformer monitoring module in the related technology.

Inventors

• WANG GANG
• REN CHAO
• LIU BIN
• LIN FEI
• ZHENG GUOPEI
• XU ANQI
• ZHANG MINGZHU
• ZHANG LEI
• ZHAO YONGQI
• LI JIANG
• WANG MO
• REN YONG

Assignees

• 成来电气科技有限公司

Dates

Publication Date

20260508

Application Date

20250530

Claims (10)

1. 1. A transformer monitoring module, characterized in that, offered the access hole on transformer body (10), install access cover (20) on the access hole, the transformer monitoring module includes: the oil outlet (1) is communicated with the inside of the transformer body (10); The oil return port (2) is communicated with the inside of the transformer body (10); The monitoring pipeline (3), the monitoring pipeline (3) is respectively communicated with the oil outlet (1) and the oil return port (2), and the monitoring pipeline (3) is provided with monitoring equipment (4); Wherein the oil outlet (1) and/or the oil return port (2) are/is arranged on the access cover (20).
2. 2. Transformer monitoring module according to claim 1, characterized in that the monitoring line (3) comprises an oil extraction switch (5), the oil extraction switch (5) being arranged on the monitoring line (3), the oil extraction switch (5) being arranged between the oil outlet (1) and the monitoring device (4).
3. 3. Transformer monitoring module according to claim 1, characterized in that the monitoring line (3) comprises an oil return switch (6), the oil return switch (6) being arranged on the monitoring line (3), the oil return switch (6) being arranged between the monitoring device (4) and the oil outlet (1).
4. 4. Transformer monitoring module according to claim 1, characterized in that the monitoring line (3) comprises: an oil outlet pipeline (31), wherein the oil inlet end of the oil outlet pipeline (31) is communicated with the oil outlet (1); The monitoring main pipeline (32) is connected with the oil outlet pipeline (31) through an oil outlet flange (41); The oil return pipeline (33), the oil inlet end of the oil return pipeline (33) is connected with the monitoring main pipeline (32) through an oil return flange (42), and the oil outlet end of the oil return pipeline (33) is communicated with the oil return port (2).
5. 5. The transformer monitoring module according to claim 4, wherein the oil outlet flange (41) comprises a first flange plate and a second flange plate which are connected, one end of the first flange plate far away from the second flange plate is connected with the oil outlet pipeline (31), one end of the second flange plate far away from the first flange plate is connected with the monitoring main pipeline (32), a sealing ring is arranged between the first flange plate and the second flange plate, and/or, The oil return flange (42) comprises a first flange plate and a second flange plate which are connected, one end, away from the second flange plate, of the first flange plate is connected with the oil return pipeline (33), one end, away from the first flange plate, of the second flange plate is connected with the monitoring main pipeline (32), and a sealing ring is arranged between the first flange plate and the second flange plate.
6. 6. The transformer monitoring module according to claim 1, characterized in that the transformer monitoring module comprises an oil outlet flange (41), the oil outlet flange (41) comprising: An oil outlet flange seat (411), wherein an oil inlet end of the oil outlet flange seat (411) is communicated with the oil outlet (1), and the oil outlet flange seat (411) is detachably connected with the access cover (20); The oil outlet flange plate (412), one side of the oil outlet flange plate (412) close to the oil outlet flange seat (411) is connected with the oil outlet flange seat (411), and one side of the oil outlet flange (41) cover away from the oil outlet flange seat (411) is connected with the monitoring pipeline (3).
7. 7. The transformer monitoring module of claim 6, wherein the transformer monitoring module comprises an oil return flange (42), the oil return flange (42) comprising: The oil return flange seat (421), the oil outlet end of the oil return flange seat (421) is communicated with the oil return port (2), and the oil return flange seat (421) is detachably connected with the access cover (20); The oil return flange plate (422), one side of oil return flange plate (422) being close to oil return flange seat (421) with oil return flange seat (421) are connected, oil return flange (42) lid keep away from oil return flange seat (421) one side with monitoring pipeline (3) are connected.
8. 8. The transformer monitoring module according to claim 7, wherein the access cover (20) is provided with a sealing groove (201), the sealing groove (201) is arranged corresponding to the oil outlet (1), a sealing ring is accommodated in the sealing groove (201), the sealing ring is abutted with the oil outlet flange seat (411), and/or, The oil return flange is characterized in that a sealing groove (201) is formed in the access cover (20), the sealing groove (201) is arranged corresponding to the oil return opening (2), a sealing ring is arranged in the sealing groove (201), and the sealing ring is in butt joint with the oil return flange seat (421).
9. 9. Transformer monitoring module according to claim 1, characterized in that the oil outlet (1) is located at one end of the access cover (20) and the oil return opening (2) is located at an end of the access cover (20) remote from the oil outlet (1).
10. 10. A transformer, characterized in that the transformer comprises a transformer monitoring module according to any one of claims 1 to 9.

Description

Transformer monitoring module and transformer Technical Field The utility model relates to the technical field of large transformers, in particular to a transformer monitoring module and a transformer. Background The oil immersed transformer uses transformer oil as a cooling medium, and can efficiently conduct out heat generated in the operation process by injecting the transformer oil into the transformer oil to be in direct contact with the iron core and the winding and combining an external heat dissipation system. Although this design has excellent heat dissipation properties, it places extremely high demands on the sealability of the transformer housing. In the operation process, the transformer oil can be decomposed to generate gases such as oxygen, acetylene and the like, so that the combustibility of the oil product is increased, and therefore, the transformer oil needs to be maintained and detected regularly. In the prior art, key parameters such as harmful gas content and temperature in transformer oil are usually detected by leading the transformer oil out. However, the oil inlet and outlet of the detection pipeline is usually arranged on the transformer body, and the interfaces are easy to damage due to frequent operation and maintenance, so that the tightness is affected. Once the tightness is problematic, the whole transformer body often needs to be replaced, so that the maintenance cost is greatly increased, and the maintenance efficiency of the transformer oil monitoring module is remarkably reduced. Accordingly, the prior art is subject to further development. Disclosure of utility model The utility model aims to overcome the technical defects and provide a transformer monitoring module and a transformer, so as to solve the technical problems of higher maintenance cost and lower maintenance efficiency of the transformer monitoring module in the related art. The technical scheme is that the transformer monitoring module comprises an oil outlet, an oil return port and a monitoring pipeline, wherein the oil outlet is communicated with the inside of the transformer body, the oil return port is communicated with the inside of the transformer body, the monitoring pipeline is respectively communicated with the oil outlet and the oil return port, monitoring equipment is arranged on the monitoring pipeline, and the oil outlet and/or the oil return port are/is arranged on the access cover. Further, the monitoring pipeline comprises an oil taking switch, the oil taking switch is arranged on the monitoring pipeline, and the oil taking switch is arranged between the oil outlet and the monitoring equipment. Further, the monitoring pipeline comprises an oil return switch, the oil return switch is arranged on the monitoring pipeline, and the oil return switch is arranged between the monitoring equipment and the oil outlet. The monitoring pipeline comprises an oil outlet pipeline, an oil inlet end of the oil outlet pipeline is communicated with the oil outlet, a monitoring main pipeline is connected with the oil outlet pipeline through an oil outlet flange, an oil return pipeline is connected with the oil inlet end of the oil return pipeline through an oil return flange, and the oil outlet end of the oil return pipeline is communicated with the oil return port. Further, the oil outlet flange comprises a first flange plate and a second flange plate which are connected, one end, away from the second flange plate, of the first flange plate is connected with the oil outlet pipeline, one end, away from the first flange plate, of the second flange plate is connected with the monitoring main pipeline, a sealing ring is arranged between the first flange plate and the second flange plate, and/or the oil return flange comprises a first flange plate and a second flange plate which are connected, one end, away from the second flange plate, of the first flange plate is connected with the oil return pipeline, one end, away from the first flange plate, of the second flange plate is connected with the monitoring main pipeline, and a sealing ring is arranged between the first flange plate and the second flange plate. The transformer monitoring module further comprises an oil outlet flange, the oil outlet flange comprises an oil outlet flange seat, an oil inlet end of the oil outlet flange seat is communicated with the oil outlet, the oil outlet flange seat is detachably connected with the access cover, one side of the oil outlet flange close to the oil outlet flange seat is connected with the oil outlet flange seat, and one side of the oil outlet flange cover away from the oil outlet flange seat is connected with the monitoring pipeline. The transformer monitoring module further comprises an oil return flange, the oil return flange comprises an oil return flange seat, an oil outlet end of the oil return flange seat is communicated with the oil return opening, the oil return flange seat is detachably connected with the acces