Mixer capable of automatically quantifying standard oil sample and used for inspection of the online monitoring device applied to dissolved gas in oil, and standard oil sample configuration method

Abstract

The invention discloses a mixer capable of automatically quantifying standard oil sample and used for inspection of an online monitoring device applied to dissolved gas in oil. The mixer comprises a cylinder body, a piston, a stirring device, an oil inlet, an oil outlet, a gas injection port, an emptying port, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a fourth electromagnetic valve, a fifth electromagnetic valve, a first one-way valve, a second one-way valve, a third one-way valve, a three-way electromagnetic valve, a heating device, a sensorset, a vacuum pump, an electric cylinder and an electric control box, wherein the piston and the sensor set are arranged in the cylinder body; an electric cylinder is arranged above the piston; the stirring device is arranged at the bottom of the cylinder body; the oil inlet communicates with the cylinder body through the three-way electromagnetic valve, the heating device and the third one-way valve; the oil outlet communicates with the cylinder body through the second electromagnetic valve; the gas injection port communicates with the cylinder body through the first electromagnetic valve; and the emptying port communicates with the cylinder body through the third electromagnetic valve, the fourth electromagnetic valve, the first one-way valve, the vacuum pump, the second one-way valve and the fifth electromagnetic valve. According to the invention, the standard oil sample for inspection of the online monitoring device applied to dissolved gas in oil can be prepared more convenientlyand accurately, and a preparation speed is increased.

Description

technical field [0001] The invention relates to the technical field of preparing a standard oil sample for inspection of an online dissolved gas monitoring device in oil, in particular to an automatic quantitative mixing instrument for a standard oil sample used for inspection of an online dissolved gas monitoring device in oil and a standard oil sample configuration method. Background technique [0002] The online monitoring device for dissolved gas in oil is widely used in the company. The performance of the online monitoring device for dissolved gas in transformer oil deteriorates after long-term use, making it difficult to accurately and timely detect changes in dissolved gas in insulating oil. [0003] In order to ensure the measurement accuracy of the online monitoring device for dissolved gas in oil, it is necessary to inspect the device through a standard oil sample, according to "DLT 1432.2-2016 Inspection Specification for Online Monitoring Device for Transformer Eq...

AI Technical Summary

Problems solved by technology

[0005] (1) The volume of the standard oil sample configuration device is too large to be transported to the installation site for direct testing, so the configured oil samples need to be transferred to a smaller oil storage device before transported to the site

[0006] (2) The whole set of oil distribution device is bulky, the handling efficiency is low, and the loading and unloading workload is huge. Forklifts or cranes are often required to cooperate with loading and unloading trucks, which are often not suitable for performance testing of devices with a small number of devices and long distances.

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