Dynamic distributing system for standard gas

A standard gas, standard gas technology, used in gas/liquid distribution and storage, pipeline systems, mechanical equipment, etc., can solve the problems that limit the wide application of dynamic gas distribution method, complex instruments and equipment, and single use, and achieve good man-machine interface, the effect of improving accuracy

Inactive Publication Date: 2007-01-03
周玉成
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complexity of the instruments and equipment used in the existing dynamic gas distribution method, and the single purpose, and the dynamic gas distribution value has certain instability, the wide application of the dynamic gas distribution method is limited.

Method used

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  • Dynamic distributing system for standard gas
  • Dynamic distributing system for standard gas
  • Dynamic distributing system for standard gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] figure 1 Shown is a schematic diagram of the composition of the dynamic preparation system of a standard gas of the present invention, and the clarity of the components shown in the serial numbers in the figure is as follows:

[0020] 1. Raw material standard gas input port; 2. Raw material dilution gas input port; 3. Filter; 4. Pressure regulating valve; 5. Pressure regulating valve; 6. The first three-way reversing ball valve; 7. Mass flow device; 8 , mass flow meter; 9, the second three-way reversing ball valve; 10, cooling source; 11, cooling source; 12, heating source; 13, water temperature sensor; 14, water level sensor; 15, constant temperature water tank; 16, diffusion tube ;17. Upper water level sensor; 18. Mixed gas chamber; 19. Primary mixed gas temperature sensor; 20. Evacuation port; 21. Standard gas output port after preparation; 22. Mass flow controller; 23. PID self-tuning instrument ; 24. Mass flow controller; 25. Central computer.

[0021] Such as f...

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PUM

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Abstract

The inventive system consists of a gas circuit part and an electrical control part. The gas circuit part includes a mixed gas chamber, a thermostatic water channel with a refrigerating source, a heating source and a water circulating pump and a gas-storage unit with penetration standard gas or diffusion standard gas inside. The electrical control part includes a mass flow controller for controlling the operation of the mass flow instrument, a PID self-adjusting instrument for controlling the operation of the thermostatic water channel and a central computer for controlling the operations of the mass flow controller, the PID self-adjusting instrument and the water circulating pump.

Description

technical field [0001] The invention relates to a dynamic preparation system of standard gas, specifically, the gas distribution device is used to dynamically realize the preparation of various standard gases, that is, raw material gas and dilution gas of known concentration are continuously mixed in a constant ratio. Mixed with the device, so that the standard gas of a certain concentration can be continuously prepared and supplied, or the prepared bottle gas can be released at a certain flow rate. Background technique [0002] At present, there are two methods of preparing low-concentration standard gas from raw material gas at home and abroad: static gas distribution method and dynamic gas distribution method. The static gas distribution method is to add a certain amount of gaseous or vaporous raw material gas into a container of known volume, then fill it with diluent gas, and mix it evenly. The concentration of the standard gas is calculated according to the amount of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D1/04F17D3/01F17D3/12
Inventor 周玉成肖天际侯晓鹏张亚勇赵辉安源
Owner 周玉成
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