Micro-water transmitter

A transmitter and micro-water sensor technology, which is applied in the field of high-voltage equipment detection devices, can solve the problems of poor measurement timeliness and low reliability, and achieve the effect of solving poor measurement accuracy

Active Publication Date: 2012-12-05
HENAN PINGGAO ELECTRIC +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a micro-water transmitter to solve the problems of poor measurement timeliness and low reliability of existing micro-water transmitters

Method used

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Examples

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Embodiment Construction

[0023] Embodiment 1 of the micro-water transmitter of the present invention, such as Figure 1-8 As shown, it includes a shell, which is a closed shell and includes a main body 11 at the front end. The main body 11 has an inner cavity. 12. In this embodiment, the sealing sleeve 12 adopts a copper-cast integrated structure, which is in the shape of a cylinder with an open front end and a sealed rear end. The front end of the sealing sleeve has a connecting part 12-1, and the connecting part The outer diameter of 12-1 is larger than the outer diameter of other parts of the sealing sleeve, and the rear end of the connecting part has an everted edge, and the sealing sleeve 12 passes through the large, The stepped surface between the small-diameter sections is flange-connected, so that the sealing sleeve 12 is fixedly assembled in the housing. In addition, the small-diameter section hole of the stepped hole formed by the connecting part of the sealing sleeve 12 and the inner cavity...

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Abstract

The invention relates to a micro-water transmitter, which comprises a closed shell, a piezoelectric fan and a micro-water sensor, wherein the piezoelectric fan is hermetically assembled in the shell; the micro-water sensor is assembled on the shell; the shell is provided with a detection hole communicated with a corresponding sulfur hexafluoride gas tank; the piezoelectric fan is arranged opposite to an inner port of the detection hole; an air cavity is arranged between the piezoelectric fan and the inner port of the detection hole in the shell; and a contact of the micro-water sensor extends into the air cavity or is arranged in a through hole which is formed in the shell to be communicated with the air cavity. In use, the detection hole of the shell can be communicated with the sulfur hexafluoride tank body to be detected, and then the piezoelectric fan is started to output stable and high-speed air flow forwards; since the shell is a closed shell, the air pressure inside the sulfur hexafluoride tank body and the air pressure outside the sulfur hexafluoride tank body are equal, and the air flow produced by the piezoelectric fan forms negative pressure, so that air flow circulation inside and outside the shell is realized; and thus, the range of the air flow detected by the micro-water sensor is greatly expanded, and the problems of poor measuring timeliness and low reliability of the conventional micro-water transmitter are solved.

Description

technical field [0001] The invention relates to a high-voltage equipment detection device, in particular to a micro-water transmitter. Background technique [0002] Sulfur hexafluoride gas has been widely used in high-voltage electrical equipment at this stage. Under normal working conditions, it is an ideal insulation and arc-extinguishing medium. The level of micro-water content in the work has a direct impact on the safe and reliable operation of the equipment. , if the moisture content in sulfur hexafluoride gas exceeds the standard, there will be safety hazards in high-voltage electrical equipment and even lead to accidents. Therefore, the monitoring of the micro-moisture content of sulfur hexafluoride high-voltage electrical equipment gas is an important aspect related to the normal operation of the power grid. [0003] At present, when micro-water detection is performed on sulfur hexafluoride in high-voltage electrical equipment, the device that is often used is a mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
Inventor 张军民尹军华寇新民陈卓
Owner HENAN PINGGAO ELECTRIC
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