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CN-224202962-U - Integrated detection system for air content and water content in insulating oil

CN224202962UCN 224202962 UCN224202962 UCN 224202962UCN-224202962-U

Abstract

The utility model relates to the technical field of electric power detection, in particular to an integrated detection system for gas content and water content in insulating oil, which comprises a vacuum chamber, wherein the top of the vacuum chamber is connected with an oil inlet through a first pipeline, the oil inlet is also connected with a second pipeline, a second control valve is arranged on the second pipeline and is connected with a micro-moisture measuring chamber through a third pipeline, the micro-moisture measuring chamber is connected with the bottom of the vacuum chamber through a fourth pipeline, the vacuum chamber is connected with a vacuum pump through a fifth pipeline, a pressure sensor is arranged on the vacuum chamber, and the top of the oil inlet is connected with a sample injection mechanism through a sixth pipeline. The utility model innovatively realizes the integrated detection of the air content and the water content of the insulating oil, organically integrates two key parameter measurement modules, and compared with the traditional detection mode, not only simplifies the complex flow of multi-parameter step detection, but also reduces the equipment acquisition and maintenance cost more effectively.

Inventors

  • LI MING
  • YANG TAO
  • XIE WENLONG
  • WANG KUNPENG

Assignees

  • 山东中惠仪器有限公司

Dates

Publication Date
20260505
Application Date
20250523

Claims (7)

  1. 1. The utility model provides an integrated detecting system of air content and moisture content in insulating oil, its characterized in that, including vacuum chamber (3), oil inlet (1) is connected through first pipeline (18) at vacuum chamber (3) top, and second pipeline (11) are still connected to oil inlet (1), set up second control valve (2) on second pipeline (11), and trace moisture measuring chamber (5) are connected through third pipeline (12) to second control valve (2), and trace moisture measuring chamber (5) are connected in vacuum chamber (3) bottom through fourth pipeline (17), vacuum pump (8) are connected through fifth pipeline (10) in vacuum chamber (3), are provided with pressure sensor (9) on vacuum chamber (3), and sampling mechanism (15) are connected through sixth pipeline (16) at oil inlet (1) top.
  2. 2. The integrated detection system for gas content and water content in insulating oil according to claim 1, wherein the first pipeline (18) is provided with a first control valve (4), the fourth pipeline (17) is provided with a fourth control valve (7), and the fifth pipeline (10) is provided with a third control valve (14), a seventh pipeline (13) and a vacuum electromagnetic valve (6) in sequence.
  3. 3. The integrated detection system for gas content and water content in insulating oil according to claim 2, wherein the first control valve (4), the second control valve (2), the third control valve (14) and the fourth control valve (7) are all solenoid valves.
  4. 4. The integrated detection system for gas content and water content in insulating oil according to claim 2, wherein the second pipeline (11) and the seventh pipeline (13) are stainless steel pipes, the third pipeline (12) and the fourth pipeline (17) are polytetrafluoroethylene pipes, the fifth pipeline (10) is a stainless steel corrugated pipe, and the sixth pipeline (16) is a rubber pipe.
  5. 5. The integrated detection system for gas content and moisture content in insulating oil according to claim 1, wherein the trace moisture measuring chamber (5) is located at a lower level than the vacuum chamber (3).
  6. 6. The integrated detection system for gas content and water content in insulating oil according to claim 1, wherein the bottom of the vacuum chamber (3) is connected with a drain pipe (19) and a drain valve (20).
  7. 7. The integrated detection system for the air content and the moisture content in the insulating oil according to claim 1, wherein a humidity sensor is arranged in the trace moisture measuring chamber (5).

Description

Integrated detection system for air content and water content in insulating oil Technical Field The utility model relates to the technical field of electric power detection, in particular to an integrated detection system for gas content and water content in insulating oil. Background The gas content refers to the volume percentage content of dissolved gas in the transformer oil, and fault analysis and service life prediction can be performed on the oil immersed transformer by detecting the gas concentration in the insulating oil. In addition, the moisture content in the insulating oil is an important index, and the moisture content can influence key performances such as insulating performance, dielectric loss and the like. The gas content and the water content are detected regularly, so that the latent faults can be identified in advance, the maintenance strategy is optimized, the unplanned outage rate is reduced, and the service life of equipment is prolonged. The prior method for measuring the gas content in the insulating oil is a multi-purpose vacuum differential pressure method, the gas content is measured according to the standard of DL/T423-2009 (the method for measuring the gas content in the insulating oil is the vacuum differential pressure method) in the prior art, and the prior equipment detects the gas content according to the standard. However, in the prior art, there is no structure capable of simultaneously measuring the moisture in the oil, and an operator usually adopts a syringe to collect a proper amount of the sampled sample from the oil drain port for micro-water analysis, so that the manual detection efficiency is low, and the detection result error is large. Disclosure of utility model The utility model aims to overcome the defects of the prior art and provide an integrated detection system for the gas content and the water content in insulating oil. In order to solve the technical problems, the utility model provides the following technical scheme: The utility model provides an integrated detecting system of air content and moisture content in insulating oil, includes the vacuum chamber, and the vacuum chamber top is through first pipe connection oil inlet, and the second pipeline is still connected to the oil inlet, sets up the second control valve on the second pipeline, and the second control valve passes through the third pipe connection trace moisture measuring chamber, and trace moisture measuring chamber passes through the fourth pipe connection in the vacuum chamber bottom, the vacuum chamber passes through the fifth pipe connection vacuum pump, is provided with pressure sensor on the vacuum chamber, and the oil inlet top is through sixth pipe connection sampling mechanism. The structure integrates the structure for measuring the air content and the structure for measuring the moisture content by adopting a vacuum differential pressure method, simplifies the insulating oil measuring flow and procedure, and reduces the equipment cost. The first pipeline is provided with a first control valve, the fourth pipeline is provided with a fourth control valve, and the fifth pipeline is sequentially provided with a third control valve, a seventh pipeline and a vacuum electromagnetic valve. The whole measurement process can be automatically controlled, and two important parameters of the air content and the water content of the insulating oil can be obtained without manual operation. Specifically, the first control valve, the second control valve, the third control valve and the fourth control valve are all solenoid valves. The second pipeline and the seventh pipeline adopt stainless steel pipes, the third pipeline and the fourth pipeline adopt polytetrafluoroethylene pipes, the fifth pipeline adopts stainless steel corrugated pipes, and the sixth pipeline adopts rubber pipes. The pipeline adopting the stainless steel pipe can realize welding, thereby improving the tightness. The height of the micro-moisture measuring chamber is lower than that of the vacuum chamber, so that oil in the vacuum chamber can automatically flow into the micro-moisture measuring chamber under the action of gravity. The bottom of the vacuum chamber is connected with an oil discharge pipeline and an oil discharge valve, and oil flows out from the oil discharge pipeline and the oil discharge valve after detection or flushing is completed. And a humidity sensor is arranged in the trace moisture measuring chamber. The beneficial effects achieved by the utility model are as follows: The utility model innovatively realizes the integrated detection of the air content and the water content of the insulating oil, organically integrates two key parameter measurement modules, and compared with the traditional detection mode, not only simplifies the complex flow of multi-parameter step detection, but also reduces the equipment acquisition and maintenance cost more effectively. The utility model adopts a full-flow automa