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Method for detecting gas flow rate through weight loss method

A technology of gas flow and detection method, applied in liquid/fluid solid measurement, measurement flow/mass flow, measurement device, etc., can solve the problems of harsh installation conditions of glass rotor flowmeter, troublesome data conversion and comparison, and cumbersome installation process. , to achieve the effect of good testing site and environmental adaptability, testing safety, and a wide range of applications

Inactive Publication Date: 2013-07-17
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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Problems solved by technology

[0002] In the prior art, glass rotameters are usually used for dynamic gas flow detection. Based on the consideration of ensuring the normal operation and measurement accuracy of rotameters, the installation conditions of glass rotameters are harsh and the installation process is cumbersome. The measured data and the temperature of the detection environment It is related to the pressure, not the flow value under the standard state, so the data conversion and comparison after detection are more troublesome

Method used

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  • Method for detecting gas flow rate through weight loss method

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Embodiment Construction

[0015] The specific implementation of the present invention will be described by taking the detection of the gas flow rate of a certain solid oxygen generator as an example.

[0016] Step 1, establish a dynamic connection: Prepare a laptop computer and a precision electronic balance, connect them through a dedicated RS232 interface and a data cable, start the real-time weighing software on the computer, select the corresponding balance model, and establish a dynamic connection.

[0017] Step 2, start the gas generator and start timing and weighing: put the solid oxygen generator on the balance tray, reset the mass to zero, and clear the time and data of the real-time weighing software; start the solid oxygen generator, and the generator starts to generate oxygen , the quality keeps decreasing, and the real-time weighing software starts timing and records the quality data. In this example, according to the measurement accuracy requirements, it is set to record a quality data ev...

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Abstract

The invention discloses a method for detecting a gas flow rate through a weight loss method. The method is used for dynamically analyzing the gas flow rate and comprises the steps of establishing dynamic connection between an electronic balance and a computer, starting a gas generator, starting timing and weighing, calculating the gas volume flow rate per unit time, obtaining a flow-time curve graph, and processing and analyzing detection data. According to the method, the electronic balance and the computer are connected dynamically, the gas mass flow rate of the gas generator is detected in real time, weighing software of the computer is used for finishing corresponding detection processes, and the method comprises model selection and configuration of the balance, conversion of the volume flow rate, setting of detection duration, drawing of the flow-time curve graph and processing and analyzing of data. The method is widely used for detection of gas flow rates of various medium and small gas generators and can be used for dynamic detection of gas flow rates with mass and time changed correspondingly. The method has the advantages of being simple to operate, safe to detect, high in detection precision and good in field adaptability.

Description

Technical field [0001] The invention relates to a gas flow detection method using a weight loss method for dynamic gas flow analysis. technical background [0002] In the prior art, glass rotameters are usually used for dynamic gas flow detection. Based on the consideration of ensuring the normal operation and measurement accuracy of rotameters, the installation conditions of glass rotameters are harsh and the installation process is cumbersome. The measured data and the temperature of the detection environment It is related to the pressure, not the flow value under the standard state, so the data conversion and comparison after detection are more troublesome. Contents of the invention [0003] The object of the present invention is to provide a gas flow detection method by weight loss method, which can effectively simplify the detection process and reliably improve detection accuracy. [0004] Technical scheme of the present invention is: [0005] Design a method of gas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/00
Inventor 周兴明崔兵彦胡晓毛胜华张毅毛龙
Owner HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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