The high flow fully automatic mixed gas proportioning cabinet is a highly integrated gas automatic proportioning device that can ratio multiple gases according to usage requirements to obtain a uniform mixed gas. It is commonly used in industrial production processes for precise proportioning control of multiple gases or liquids. Its design purpose is to meet the strict requirements of different industries for gas mixing ratios, flow rates, pressures, and other parameters to ensure stability, safety, and efficiency in use.
The main components of a mixed gas proportioning cabinet are as follows.
Gas source inlet: Each gas proportioning cabinet has multiple gas source inlets, which are usually connected to supply devices such as gas cylinders and storage tanks through pipelines to input different types of gases or liquids.
Flow meter: Used to measure the flow rate of each gas, common types include mass flow meters, volumetric flow meters, differential pressure flow meters, etc.
Proportional valve or control valve: By adjusting the opening of the valve, the flow rate of gas is controlled to ensure that each gas is input according to the set ratio.
Mixing unit: This is the core part of the proportioning cabinet, which precisely adjusts the flow rate of each gas through a flow control device and performs mixing in this unit. The design of mixing units can be simple pipeline mixing or complex multi-stage mixing devices, depending on application requirements.
Pressure control system: including pressure sensors, pressure regulators, etc., to ensure that the incoming and outgoing gases are within a stable pressure range. The pressure control system can also prevent excessive internal pressure and ensure safety.
Control system: PLC programmable logic controller, DCS distributed control system and other control types, automatically control the proportioning process, and set parameters such as mixing ratio, pressure, flow rate through programming to ensure automation and precise control.
Human Machine Interface (HMI): The proportioning cabinet is usually equipped with human-machine interaction devices such as touch screens, and operators can monitor and adjust various parameters.
Sensors: including various sensors such as temperature, pressure, flow rate, etc., used for real-time monitoring of system status and feedback of data to the control system.
Output port: This is the outlet of the gas after precise mixing, connected to the downstream process system to ensure that the transported mixture meets the set process requirements.
The work of the proportioning cabinet is to precisely control the flow of multiple gas sources through control devices such as flow meters and proportional valves, mix different gases or liquids according to the set ratio, and then output them to the target equipment. During operation, the control system adjusts and monitors the entire proportioning process based on preset process parameters. The gases to be mixed enter their respective inlets from different gas sources, and flow meters and pressure sensors monitor the status of each gas in real-time. The proportional valve adjusts the flow rate according to the set proportioning parameters to ensure that each gas enters the mixing unit in an accurate proportion. In the mixing unit, gases are mixed according to the set ratio. Different industrial applications have different requirements for the uniformity of mixing, some require simple pipeline mixing, while others require multi-stage mixing devices. The mixed gas is transported to downstream systems such as production lines, reactors, packaging equipment, etc. through output ports.
The role of proportioning cabinets in industrial production is crucial, as they not only improve the accuracy and stability of production processes, but also greatly enhance safety and efficiency. The high-pressure and high flow mixed gas proportioning cabinet has been widely used due to its high efficiency in mixed gas. In addition, it also has the following characteristics.
Precise control: Through flow meters and control valves, precise proportional control of gas can be achieved with a very small error range, suitable for high-precision process applications.
Automated operation: PLC control makes the proportioning cabinet easy to operate, capable of automatic adjustment and real-time monitoring of parameters, greatly improving efficiency and accuracy.
High safety: The proportioning cabinet is equipped with multiple safety alarm and protection systems, which can effectively prevent accidents such as gas leakage and overpressure, ensuring the safety of equipment and personnel.
Energy saving and efficient: Due to precise proportioning, gas waste is reduced and production costs are lowered.