Large scale air separation unit supplier

When the cryogenic method is used for air separation, the whole process is carried out in closed containers and pipelines from the air compressor to the final gas and liquid products such as oxygen, nitrogen, argon and so on. During the start-up, shutdown and normal operation of the equipment, the values of relevant parameters must be strictly controlled in each process, including pressure, temperature, flow, resistance, liquid level, rotate speed, voltage, current, component analysis, etc. The following introduces some instrument control components for measuring temperature, pressure and flow for reference. 1.Temperature measurement: In the temperature measurement of air separation plant, the main measuring elements are platinum thermistor thermometer, temperature transmitter and bimetal thermometer. Platinum thermistor thermometer is widely used in air separation plant due to its high measurement accuracy at low temperature (13.81K) and no temperature compensation at cold end.

Small air separation equipment consists of air compressor, purifier, air separation Tower, expander, oxygen compressor and other main parts. Before starting, all parts of the equipment should be ensured to be in good condition and can be put into operation at any time. (1) The start-up preparation of piston air compressor after the installation of air compressor, it should be tested according to the instruction manual. The daily preparation work before driving should remember the words "water, oil, gas, electricity and safety", and check according to these five aspects. 1) Water: Open the cooling water, oil cooler cooling water and inlet valve of cylinder liner and cooler at all levels, and check whether the cooling water is unblocked and adjusted properly; 2) oil: it includes the lubricating oil of the cylinder and the lubricating oil of the running part. Shake the plunger oil pump by hand until the oil flows out of the check valve of each oil injection point is opened, and fill up...