Preparation device and preparation method of standard oil sample of dissolved gas in transformer oil
A standard oil sample and dissolved gas technology, applied in measurement devices, instruments, scientific instruments, etc., can solve the problems of difficult preparation of some components at low concentrations, complex preparation systems, and high moisture content, achieve efficient and rapid degassing and dehydration, overcome the Composing complex effects
Active Publication Date: 2021-03-09
ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY +2
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[0006] The present invention is aimed at the preparation method of the existing standard sample oil, which has complex preparation system, long time, large gas content in the oil sample, high water content in the oil, and low part components To solve problems such as difficulty in concentration preparation, a preparation device for standard oil samples of dissolved gases in transformer oil is provided to achieve the effects of high preparation efficiency, low gas content in oil samples, low water content, high concentration preparation accuracy, and easy preparation of low-concentration oil samples. at least one of
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[0053] In the following, the technical solutions of the embodiments of the invention are explained and described in conjunction with the accompanying drawings of the embodiments of the invention, but the following embodiments are only preferred embodiments of the invention, not all of them. Based on the examples in the implementation manners, other examples obtained by those skilled in the art without creative efforts all belong to the protection scope of the present invention.
[0054] Example of a compounding device
[0055] A kind of preparation device of dissolved gas standard oil sample in transformer oil of the present invention, described preparation device comprises:
[0056] An upper oil cylinder 1, wherein an agitator 10 is arranged in the upper oil cylinder 1;
[0057] Lower oil cylinder 2, said lower oil cylinder 2 is provided with agitator 10;
[0058] A vacuum pump 3, the vacuum pump 3 is in communication with the upper oil cylinder 1;
[0059] A buffer cylind...
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The invention belongs to the technical field of online monitoring of dissolved gas in transformer oil, and particularly relates to a preparation device and preparation method of a standard oil sampleof dissolved gas in transformer oil. Aiming at the problems of complex preparation system structure, long time, high oil sample gas content, high oil moisture content, difficulty in preparing partialcomponents with low concentration and the like when standard sample oil of insulating gas in transformer oil is prepared in the prior art, the invention adopts the following technical scheme: the preparation device for the standard oil sample of the dissolved gas in the transformer oil is provided; the preparation device comprises: an upper oil cylinder; a lower oil cylinder; a vacuum pump; a cushion cylinder; a standard gas constant volume airbag; and a standard oil sample storage tank. A selective permeable membrane is further arranged between the standard gas constant-volume air bag and thelower oil cylinder, and an oil pump is arranged between the standard oil sample oil storage tank and the lower oil cylinder. The invention has the beneficial effects that the preparation system is simple, the preparation efficiency is high, the gas content and the moisture content of the oil sample are relatively low, the concentration preparation precision is high, and the low-concentration oilsample is easy to prepare.
Description
technical field [0001] The invention belongs to the technical field of on-line monitoring of dissolved gas in transformer oil, and in particular relates to a preparation device and method for standard oil samples of dissolved gas in transformer oil. Background technique [0002] As the main equipment of the power system, the operation reliability of the transformer directly affects the safety and stability of the power system. Therefore, it is necessary to monitor the operation status of the transformer to ensure the safe operation of the transformer. The composition and content of dissolved gas in transformer oil can effectively reflect the fault conditions inside the operating transformer. Therefore, the analysis method of dissolved gas in transformer oil has become an effective monitoring method for fault diagnosis of oil-immersed transformers in power systems. The safety, reliability, stability and accuracy of the measurement results of the online dissolved gas monitorin...
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IPC IPC(8): G01N30/06G01N30/02
CPCG01N30/06G01N30/02G01N2030/062
Inventor 明菊兰余璐静钱洲亥李治国胡家元徐恒昌祝晓峰方鹏飞李媛媛牛莉
Owner ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY