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Process flow and control mode of automatic gas proportioner
Latest company news about Process flow and control mode of automatic gas proportioner

Automatic gas mixing and proportioning device hydrogen-argon gas mixer oxygen-argon mixing and proportioning cabinet hydrogen-nitrogen mixing equipment using imported mass flow controller controller gas volume flow for binary mixing and proportioning, while equipped with hydrogen analyzer online monitoring of the single or multi-gas concentration of mixed gases to ensure the proportion of the ratio, the proportion of mixed gases in the hydrogen analyzer analysis of the ZUI range can be set at will, simple, convenient and intuitive adjustment.

 

Automatic gas mixing proportioner hydrogen-argon gas mixer oxygen-argon mixing proportioner hydrogen-nitrogen gas mixing equipment welding gas mixture, gas shielded welding, is a new welding process developed on the basis of the widespread use of manual arc welding and submerged arc automatic welding.

At present, the welding shielding gas mixture commonly used in industry can be roughly divided into three categories: binary mixture, ternary mixture and quadratic mixture.

Binary mixtures that are often used are Ar-He, Ar-H2, Ar-O2, Ar-CO2, CO2, O2, N2, H2, etc.; ternary mixtures are Ar-He-CO2, Ar-He-N2, N2, Ar-He-O2, Ar-O2, CO, etc.; quaternary mixtures are used less and are mainly formulated from Ar, He, H2, O2, N2, CO2, etc.

The ratio of the components of each type of gas mixture can be changed and combined, mainly by the welding process, welding material welding model and other factors to decide.

Generally speaking, the higher the requirements for the quality of the welding seam, the higher the requirements for the purity of the unit gases used to prepare the gas mixture. In Europe and America, the purity of Ar, H2, N2 and other gases used for gas mixture is 99.999%, He is 99.996%, CO2 is 99.99%, and moisture is usually regarded as harmful substance, and H20<10mg/m3 is required. fully automatic gas mixture distribution device is widely used in galvanizing line industry, float glass and other industries that need large volume of gas mixture.

Automatic gas mixing and proportioner hydrogen-argon gas mixer oxygen-argon mixing and proportioning cabinet hydrogen-nitrogen mixing equipment control mode.

It adopts famous brand programmer and touch screen control, which can display the information of proportioning process, proportioning ratio, working pressure and alarm parameters in real time, so that the operation becomes easy and clear. The control adopts the program controller and mass flow controller to do communication control, which ensures the accuracy of the proportioning, and the equipment is equipped with manual operation display instrument, which can manually adjust the proportioning ratio.

latest company news about Process flow and control mode of automatic gas proportioner  0

 

Automatic gas mixing and proportioner hydrogen-argon gas mixer oxygen-argon mixing and proportioning cabinet hydrogen-nitrogen mixing equipment equipment main components and functions.

  • Mass flow controller:it is the control mechanism of this system, and its action is directly controlled by the actuator. It is the key component of hydrogen and nitrogen gas mixing and proportioning.
  • Hydrogen divider: it is the detection mechanism of this equipment (small flow meter is the flow controller of hydrogen divider), which displays the percentage content of hydrogen in the proportioning gas and converts the percentage content of hydrogen into 4-20mA current signal.
  • Intelligent display regulator (Allegra): it is the controller of the equipment, which compares the current signal of the hydrogen divider with the set value, and the calculation result is converted into the 4-20mA current signal needed by the actuator. The intelligent display regulator has a mixture gas concentration alarm output.
  • Mixing tank (304):mixing and proportioning hydrogen and nitrogen and doing small buffer role.

5. Proportional flow meter:the use of mixed proportional gas real-time flow rate is displayed.

6.Pressure controller:there is an alarm output for nitrogen pressure, and close the hydrogen import, to ensure that the working point hydrogen concentration will not exceed the standard.

Automatic gas mixing proportioner hydrogen-argon gas mixer oxygen-argon mixing proportioning cabinet hydrogen-nitrogen mixing equipment process flow.

  • Process steps and control methods

Adopt imported mass flow controller to control the volume flow of gas for mixing and proportioning of binary or ternary gases, to ensure the reliability of equipment operation and proportioning stability while working with high precision. (Ternary gas with the corresponding standard gas to do the same proportion of calibration, the actual measurement of gas display data as a basis for comparison data detection or online monitoring of the online chromatograph fine-tuning mass flow meter equipment parameters, so that the most / final mixing ratio within 0.1%, the specific data to the resolution of the chromatograph or gas analyzer as a benchmark)

2. Control mode: PLC of famous brand and touch screen control are adopted to display the information of proportioning process, proportioning ratio, working pressure and alarm parameters in real time, so that the operation becomes easy and clear. The control adopts PLC and mass flow controller to do communication control to ensure the accuracy of the proportioning, and the equipment is equipped with manual operation display instrument, which can manually adjust the proportioning ratio.

The above is the introduction of Wofei Technology about how to use the gas mixture proportioning cabinet correctly. I hope it can provide reference for you.

latest company news about Process flow and control mode of automatic gas proportioner  1

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Pub Time : 2022-06-18 14:06:13 >> News list
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