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Monitoring device for detecting leakage of hydrazine gas and using method thereof

A gas leakage and monitoring device technology, which is applied in the direction of liquid tightness measurement using liquid/vacuum, can solve the problems of narrow sensing range, single function, and lack of accident handling methods, so as to prevent large-scale diffusion and ensure detection The effect, the effect of convenient fire fighting

Inactive Publication Date: 2012-05-23
北京航天凯恩新材料有限公司
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AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems of single function, narrow sensing range and lack of pertinence in accident handling methods in the existing technology of hydrazine gas leakage monitoring device

Method used

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  • Monitoring device for detecting leakage of hydrazine gas and using method thereof
  • Monitoring device for detecting leakage of hydrazine gas and using method thereof
  • Monitoring device for detecting leakage of hydrazine gas and using method thereof

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Embodiment Construction

[0032] Such as figure 1As shown, the monitoring device of the present invention mainly includes a plurality of sensors connected with the control module and a hierarchical alarm unit. The control module adopts the 89C51 chip, controls the multi-way switch according to the sensor data acquisition sequence, and connects the signal output of a plurality of sensor groups in turn. After a low drift, high stability signal amplification circuit and signal conditioning, it can output a readable signal of 0 ~ 2000mV, ensuring the linearity and stability of the sampling signal. Since all the sensors detect are analog signals, and the control module processes digital signals, an AD conversion module is installed between the signal amplification circuit and the control module to convert the sensor’s analog signals into digital signals that the control module can process. Hydrazine gas is considered to be detected, and the leakage of hydrazine gas is more harmful, such as image 3 As show...

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Abstract

The invention relates to a monitoring device for detecting the leakage of a hydrazine gas and a using method thereof, which relate to the field of gas monitoring. The monitoring device comprises sensors and an alarming unit which are connected with a control module respectively. A signal amplification circuit and an AD conversion module are sequentially arranged between the control module and thesensors. The sensors are divided into a primary sensor, a secondary sensor and a tertiary sensor according to different ranges of sensed hydrazine gas concentration. In the monitoring device, three stages of hydrazine gas concentration detection can be realized; and the control module starts different alarming modes and treatment ways according to the leakage levels of different hydrazine gas concentrations and different leakage speeds so as to avoid unnecessary or false alarms. In the using method for the device, different current conditions can be dealt by summarizing detection information from a plurality of aspects to achieve the perfect combination of pertinence and efficiency, the current severity of the leakage of the hydrazine gas is known according to an alarm processing mode, and bases and convenience are provided for the selection of subsequent procedures.

Description

technical field [0001] The invention relates to a monitoring device, in particular to a multi-stage alarm monitoring device for detecting hydrazine gas leakage and a use method thereof. Background technique [0002] At present, propellants are used as power sources on long-range aircraft such as missiles, rockets, and spaceships. The heat generated by the unit volume and unit mass of the propellant is large, and it can burn normally at the lowest possible pressure. The combustion performance is good, and the combustion generates The average relative molecular weight of the compound is low, and the cold resistance to high altitude is high. Propellants are generally divided into solid and liquid in terms of form, and can be divided into double-base and composite propellants in terms of composition and content. Propellants are similar to explosives and fuels. They can release energy through combustion, but the conditions of combustion are different. When fuels burn, air and ox...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/02
Inventor 许宏马德常刘朝阳林广山战立斌张航天
Owner 北京航天凯恩新材料有限公司
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