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Portable sulfur hexafluoride leak detector

A sulfur hexafluoride, leak detector technology, applied in the direction of detecting the appearance of fluid at the leak point, using liquid/vacuum degree for liquid tightness measurement, etc., can solve the problem of not considering the response time of the leak detector, etc. Good dynamic response

Inactive Publication Date: 2011-11-16
WENZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the most advanced infrared leak detector has a high static sensitivity, but the static sensitivity does not consider the response time of the leak detector or the sensitivity of various interfering gases in the surrounding environment.

Method used

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  • Portable sulfur hexafluoride leak detector
  • Portable sulfur hexafluoride leak detector
  • Portable sulfur hexafluoride leak detector

Examples

Experimental program
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Embodiment Construction

[0014] Such as figure 1 As shown, the portable sulfur hexafluoride leak detector is provided with a housing 1 and a probe rod 2, the probe is installed in the probe rod 2, and is connected with the electronic circuit in the housing through wires. The housing 1 is provided with a display window 10, and an electronic circuit is provided inside. Such as Figure 7 As shown, the electronic circuit includes an inverter and a boost circuit, a signal amplification circuit, a data processing circuit and an acousto-optic alarm circuit. circuit connection. In this specific embodiment, the inverter and boost circuit is composed of a constant current source, a positive feedback and a variable voltage boost circuit, such as figure 2 As shown, the triode Q2 and the coil L2 are connected in series between the collector of the triode Q1 and the positive pole of the power supply, and the series branch of the resistor R2 and the diode LED1 is connected in parallel to the current limiting in ...

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Abstract

The invention relates to a portable sulfur hexafluoride leak detector. The leak detector comprises a probe, an inverter and booster circuit, a signal amplification circuit, a data processing circuit and an acousto-optic alarm circuit, wherein the data processing circuit comprises a memory unit and a comparer. The data processing circuit of the portable sulfur hexafluoride leak detector comprises the memory unit and the comparer, the comparer compares a detected real-time sulfur hexafluoride signal value with a value stored in the memory unit, and the real-time value is stored in the memory unit and the acousto-optic alarm circuit is controlled to send an alarm only when the real-time value is greater than the value stored, so that a detecting person can be guided to move to a place with high concentration of the sulfur hexafluoride, and a leaking point can be quickly found.

Description

technical field [0001] The invention relates to a gas leak detector, in particular to a portable sulfur hexafluoride leak detector. Background technique [0002] . Among many electrical equipment, high-voltage circuit breakers have the most advanced production technology and the highest technical requirements, and are the leading products in the electrical industry. High-voltage circuit breakers can be divided into vacuum circuit breakers and sulfur hexafluoride (SF6 for short) circuit breakers. The high-voltage arc generated during the breaking process of the high-voltage circuit breaker will ablate the material of the circuit breaker and affect the performance of the circuit breaker. SF6 has excellent electrical insulation and arc extinguishing properties. Under the same conditions, its insulating ability is more than 2.5 times that of air and nitrogen, and its arc extinguishing ability is 100 times that of air, and the greater the gas pressure, the higher the insulati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/16
Inventor 凌荣耀朱翔鸥汪泽煌李爱飞潘益斌胡静沈丹萍
Owner WENZHOU UNIVERSITY
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