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A dynamic gas distribution instrument and gas distribution method

A gas distribution instrument and dynamic technology, which is applied in the direction of chemical instruments and methods, mixing methods, gas and gas/steam mixing, etc., can solve the problems of large error accumulation, low gas distribution accuracy, and poor controllability, so as to improve accuracy and accuracy High, simple structure effect

Active Publication Date: 2016-11-23
LIHE TECH (HUNAN) CO LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a gas distribution device and a gas distribution method to solve the problems of complex structure, large error accumulation, low gas distribution precision, poor controllability and easy corrosion existing in the existing gas distribution device

Method used

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  • A dynamic gas distribution instrument and gas distribution method
  • A dynamic gas distribution instrument and gas distribution method
  • A dynamic gas distribution instrument and gas distribution method

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Embodiment Construction

[0026] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] Such as figure 1 As shown, a dynamic gas distribution instrument provided by the present invention is characterized in that it includes a raw gas passage, a dilution gas passage and a mixing pipeline 8, and both the raw gas passage and the dilution gas passage are connected with the mixing pipeline 8, and the raw gas passage is provided with There is a first flow controller 5, and a second flow controller 6 is provided on the diluent gas passage, and the second flow controller 6 is connected to the first flow controller 5 and the mixing pipeline 8 through the first control valve 4 respectively.

[0028] Such as figure 1 As shown, the inlet of the first flow controlle...

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Abstract

The invention relates to the field of gas detection instruments, in particular to a dynamic gas distribution instrument and a gas distribution method. The gas distribution instrument includes a raw gas passage, a dilution gas passage and a mixing pipeline, the raw gas passage and the dilution gas passage are both connected to the mixing pipeline, the raw gas passage is provided with a first flow controller, and the dilution gas passage is connected to the mixing pipeline. A second flow controller is provided on the air passage, and the second flow controller is respectively connected to the first flow controller and the mixing pipeline through a No. 1 control valve. The gas distribution device has a simple structure, good controllability, and a simple and easy gas distribution method. By using the gas distribution device, the self-cleaning and self-calibration functions of the first flow controller and the second flow controller can be realized, which improves the performance of the gas distribution device. The precision of the target gas and gas distribution efficiency, good corrosion resistance, is conducive to the maintenance of equipment, and at the same time, several kinds of feed gas access branches are connected in parallel, and the corresponding target gas can be proportioned according to different needs.

Description

technical field [0001] The invention relates to the field of gas detection instruments, in particular to a dynamic gas distribution instrument and a gas distribution method. Background technique [0002] In gas detection and analysis instruments, it is often necessary to use a gas distribution instrument to obtain standard gases of different concentrations to calibrate the instrument. The gas concentration requirement also increases accordingly. The most commonly used method on the market to obtain standard gases with different concentrations is to use the mass flow mixing method, that is, to use a dilution gas flow controller and one or more feed gas flow controllers to dilute the feed gas in proportion to obtain the target concentration . Therefore, the accuracy of the mass flow controller that determines the standard gas concentration has become a priority issue at present, and at the same time, higher expectations have been raised for the high efficiency of the ratio o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F3/02B01F15/04G01N1/38G01N33/00B01F23/10
Inventor 彭冉刘海东
Owner LIHE TECH (HUNAN) CO LTD
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