Standard mixed gas preparation device
A technology of mixed gas and gas supply device, applied in the direction of mixer, mixing method, gas and gas/vapor mixing, etc., can solve the problem of short storage time, only limited to half a year, no more than one year at most, and no standard gas is formed. Value transfer and traceability issues, to achieve the effect of high-precision mixing
Active Publication Date: 2015-03-04
淄博祥龙测控技术有限公司
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Problems solved by technology
This technology effectively prevents the reactive gas from reacting with the inner wall of the steel cylinder, which increases the stability of the gas, but the stability of the gas is only limited to half a year, and the longest is not more than one year, and the storage time is short when the concentration is low, and the method The prepared standard gas does not form value transfer and traceability
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[0038] Embodiments of the present invention are further described below in conjunction with accompanying drawings:
[0039] Such as Figure 1~2 As shown, a standard mixed gas preparation device is characterized in that it includes a raw material gas supply device, a raw material gas flow ratio control device, a balance gas supply device, a balance gas flow ratio control device, a pressure stabilization device, and a mixed gas gating buffer device, mixed gas gating output device, mixed gas output control device and computer program control display device;
[0040] The pressure stabilizing device comprises a supply air pressure stabilizing device 24, a balance gas pressure stabilizing device 25 and an output pressure stabilizing device 26;
[0041] The raw material gas supply device is connected to the intake port of the raw material gas flow ratio control device after passing through the gas supply pressure stabilization device 24, and the balance gas supply device passes throug...
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The invention relates to a standard mixed gas preparation device, comprising a feed gas supply device, a feed gas flow ratio control device, a balance gas supply device, a balance gas flow ratio control device, a pressure stabilizing device, an output pressure stabilizing device, a mixed gas gate buffer device, a mixed gas gate output device, a mixed gas output control device and a computer program control display device. The standard mixed gas preparation device is capable of realizing continuously producing standard mixed gas of various component ratios, and complete automatic control of operation of the whole production process of the mixed gas is realized; the various preparation parameters can be set online through a program through the computer program control display device and the process and the result can be instantly displayed on a screen; and high-precision mixed gas mixing, and automatic buffer storage and output are realized.
Description
technical field [0001] The invention relates to a standard mixed gas preparation device, which is mainly used for sensor calibration of coal mine gas detection equipment, product quality supervision and quality control, calibration of instruments and meters, atmospheric environment monitoring, medical and health care, clinical testing, evaluation of analysis methods, etc. Background technique [0002] The standard mixed gas is prepared by using a high-purity gas as a diluent gas (also known as balance gas or background gas), and then adding one or several other high-purity gases (also known as component gas or doping gas). The content of the components in the standard mixed gas can be arbitrarily selected from 1×10-6 to 50%. The standard gas preparation methods mainly include weighing method, partial pressure method, volume method, osmosis method, saturation method, electrolysis method, Exponential dilution method, flow ratio mixing method, etc., are divided into static gas ...
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IPC IPC(8): B01F15/04B01F3/02B01F23/10
Inventor 白光星白念祥
Owner 淄博祥龙测控技术有限公司