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Headspace type vacuum oil sample taking method

An oil sampling, headspace technology, applied in the sampling device and other directions, can solve the problems of not reaching vacuum, uneven oil discharge, difficult to control the oil discharge speed, etc., to achieve uniform oil discharge, uniform oil discharge, and excellent sealing. performance effect

Inactive Publication Date: 2017-08-18
国网浙江台州市路桥区供电有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This oil sampling method needs to be equipped with more tools to take oil samples, and the sampling method is unscientific, basically can not reach a relative vacuum, the oil discharge speed is difficult to control, the oil is uneven, the oil sample has air bubbles, and the oil sample touches the air surface Wide and other problems, and need to use tools such as wrench to take oil, if there is no tool, it is impossible to take oil

Method used

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  • Headspace type vacuum oil sample taking method
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  • Headspace type vacuum oil sample taking method

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Embodiment Construction

[0043] refer to Figure 1 to Figure 6 An embodiment of a headspace vacuum oil sampling method of the present invention will be further described.

[0044] Such as Figure 1 to Figure 3 As shown, the headspace vacuum oil sampling device includes an oil sampling nozzle 1 through which the oil from the oil outlet of the transformer sampling valve can flow, a first oil sampling valve 2 that is threadedly connected to one end of the oil sampling nozzle 1, and one end extends into the first The oil extraction rod 3 in the oil extraction valve 2 and the second oil extraction valve connected on the oil extraction rod 3 . The two ends of the oil-taking nozzle 1 are respectively provided with internal threads, one end can be connected with the external thread of the oil outlet of the transformer sampling valve, and the other end is connected with the external thread of one end of the first oil-taking valve 2, and the oil-taking nozzle 1 is connected with the oil outlet of the transform...

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Abstract

The invention discloses a headspace type vacuum oil sample taking method. The method is based on a headspace type vacuum oil sample taking apparatus. The method comprises the steps of installing an oil taking nozzle on an oil outlet of a transformer sampling valve; unscrewing a protective cylinder from a first oil taking valve connected through threads; sleeving a protective cylinder installation hole onto a prism of an oil taking rod; rotating an operation rod on a side wall of the protective cylinder along a hinge shaft to be parallel to a support board; pushing the operation rod to drive the protective cylinder to rotate; pushing a sealing ball by the oil taking rod so as to enable an oil guide hole of the oil taking rod to communicate with a first oil taking hole; enabling an oil sample to flow into the oil guide hole through the first oil taking valve; taking off the protective cylinder; rotating a handle on a second oil taking valve to open the second oil taking valve; and enabling the oil sample to flow out of an oil outlet nozzle through the second oil taking valve. In the method, the protective cylinder is rotated so as to drive the oil taking rod to rotate, maintenance workers can take the oil sample without carrying tools, so that the oil sampling method is easier, faster and more effort-saving; the oil sample can be taken at a constant speed in a relatively vacuum state through two-level sealing and ball valve control.

Description

technical field [0001] The invention belongs to the field of oil extraction, and in particular relates to a headspace vacuum oil sampling method. Background technique [0002] After a period of operation of power equipment such as transformers, if the electrical indicators of the transformer oil fail to pass the test due to short circuit or other reasons, it is necessary to filter the oil to improve its purity. At this time, it is necessary to take an oil sample from the transformer for oil sample testing. [0003] The existing technology is to install an external hexagonal plug with an oil hole at the bottom of the external thread at the oil outlet of the transformer sampling valve to realize the oil sample seal of the transformer. Then open the external hexagonal oil plug, and the oil will slowly come out from the bottom oil hole. [0004] This oil sampling method needs to be equipped with more tools to take oil samples, and the sampling method is unscientific, basically...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/10
CPCG01N1/10
Inventor 杨军邱卫卫谢丽霞罗彬倪红献梁雨哲沈建力阮灵琪张洪宁
Owner 国网浙江台州市路桥区供电有限公司
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