Dynamic gas distribution instrument

A gas distribution instrument, dynamic technology, applied in the direction of mixer accessories, chemical instruments and methods, gas and gas/steam mixing, etc., to achieve the effects of shortening the constant temperature time, fast heating speed, and simple operation

Inactive Publication Date: 2012-07-18
广东省职业病防治院
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Problems solved by technology

[0005] At present, there is no dynamic gas distribution instrument that

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] Such as figure 1 As shown, the dynamic gas distribution instrument of the present invention is composed of a control system, a constant temperature chamber 3, a gas mixing chamber 2, a glass diffusion tube 4 and a diffusion tube bracket 5.

[0024] 1) The control system consists of an embedded microcomputer control host 12, a touch screen 11, a temperature controller 13, two mass flow controllers (MFC) 14, 15 and a power supply;

[0025] 2) The outer surface of the gas mixing chamber 2 is processed with an aluminum tube with thread grooves (the outer surface is blackened and oxidized for insulation treatment, and the inner surface is sprayed with heat-resistant and anti-corrosion fluororesin water-based double-layer non-stick coating). The diluent gas inle...

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Abstract

The invention discloses a dynamic gas distribution instrument, which is used for distributing standard gas with a certain concentration, and is used for calibrating measuring instruments and measuring processes in the physical, chemical and other measuring fields. The dynamic gas distribution instrument comprises a diluent gas inlet copper tube, a feed gas inlet tube, a gas outlet tube, a control system, a thermostatic chamber, a gas mixing chamber, a glass diffusion tube and a diffusion tube bracket. According to the dynamic gas distribution instrument, an embedded microcomputer is applied for automatic control, thus the dynamic gas distribution instrument not only has higher stability and accuracy, but also combines hydraulic distribution and gaseous distribution together; and moreover, the dynamic gas distribution instrument has a wider applicable scope, is simple to operate at the same time, can continuously distributing for a long time, and is suitable for being popularized and used in basic level environments, hygiene monitoring, metering and other mechanisms.

Description

technical field [0001] The invention relates to a dynamic gas distribution device, in particular to a dynamic gas distribution device which can precisely control the flow of raw material and dilution gas, and can combine liquid gas distribution and gas distribution gas into one. Background technique [0002] The gas distribution instrument is an instrument used to mix two or more gases (mostly two types on the market) according to a certain ratio, and output the gas with a set concentration. In institutions such as environment and sanitation monitoring, scientific research, teaching, and measurement, two or more types of gases are often used. With the development of science and technology, people's requirements for gas distribution instruments are also getting higher and higher. At present, there are two kinds of gas distribution instruments commonly seen on the market, one is the principle of three-way solenoid valve, and the other is the principle of mass flow meter. It c...

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Application Information

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IPC IPC(8): B01F15/04B01F15/06B01F3/02B01F3/04B01F23/10
Inventor 苏晓舟王美霞钟蝶娴
Owner 广东省职业病防治院
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