Dynamic air-distributing device for formaldehyde standard gas
A standard gas, dynamic gas distribution technology, applied in measuring devices, instruments, scientific instruments, etc., can solve problems such as restricting accurate measurement and traceability of quantities, large uncertainty, and inability to meet requirements to achieve measurement accuracy and stability.
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[0008] figure 1 Among them, the formaldehyde standard gas dynamic gas distribution device includes a gas distribution system and a cracker, the gas source 1 is connected to the pressure-stabilizing valve 2, one end of the gas purifier 3 is connected to the pressure-stabilizing valve 2, and the other end is connected to the mass flow meter 4. The mass flow rate The meter 4 is connected with two rotameters, and a rotameter 5 is connected with a constant temperature tank 7. The constant temperature tank is equipped with a trioxymethylene diffusion tube 8, and the trioxymethylene high temperature catalytic cracker 9 is mounted in the constant temperature tank 7 and the gas mixer 10. In between, another rotameter 6 is connected with the gas mixer 10, and the gas mixer 10 is connected with the excess gas evacuation valve 11 and the standard gas outlet control valve 12, respectively.
[0009] In the dynamic gas distribution device for formaldehyde standard gas, synthetic air or compr...
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