Process flow and control mode of automatic gas proportioner Việt Nam

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

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.

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

1. 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.

2. 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.

3. 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.

4. 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.

1. 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.

Shenzhen Wofly Technology Co., Ltd. is a high-tech enterprise specializing in gas application system engineering: electronic special gas systems, laboratory gas circuit systems, industrial centralized gas supply systems, bulk gas (liquid) systems, high-purity gas and special process gas secondary piping systems, chemical transportation systems, pure water systems, providing a complete set of engineering and technical services and supporting products from technical consulting, overall planning, system design, selected equipment, prefabricated components, project site installation and construction, overall system testing, maintenance, etc.

Engineering projects cover high-tech industries such as semiconductors, integrated circuits, flat panel displays, optoelectronics, automobiles, new energy, nanomaterials, optical fibers, microelectronics, petrochemicals, biopharmaceuticals, various laboratories, research institutes, and standard testing; Provide customers with a complete set of solutions for high-purity medium conveying systems; Gradually becoming an advanced overall system supplier in the industry.

The company owns AFK ®) Our brand and products are popular in 26 countries both domestically and overseas, and we act as agents for brands such as WITT in Germany, Browning in the United States, Atlas Copco, and MKP mass flow meters in South Korea. The main products sold by Wofei Technology include industrial gas pressure reducers, semiconductor pressure reducers, pressure regulating valves, diaphragm valves, corrugated pipe valves, stainless steel valves, sleeve joints, VCR joints, stainless steel pipes, high-pressure hoses, flame arresters, check valves, filters, instruments, gas detectors, analytical instruments, purifiers, gas proportioners, low-temperature valves, gas supply busbars, BSGS, GC, GR, VDB/P, VMB/P, SCRUBBER and other gas related equipment and accessories; In order to pursue better quality and provide customers with higher and safer technology, we strictly follow the ISO9001 standard to implement various management measures. Gas proportioner: http://www.szwofei.com