Small air separation FAQ

When the whole low pressure oxygen generator encounters emergency power failure, the first task is to open the air release valve at the end of the air compressor and close the valve of air entering the distillation tower quickly, in case of the air compressor's outlet check valve failure, which causes compressed air to reverse and causes the air compressor to reverse and burn out the bearing. Then it can be conducted according to the following steps: 1) change the switching mechanism from automatic to manual, and close the forced Valve and average pressure switching valve of air entering the tower. Open the sewage nitrogen vent valve. 2) cut off the solenoid valve of the expansion machine, and close the inlet regulating valve of the expansion machine and the inlet and outlet valves of the expansion machine. 3) close the regulating valve of liquid, liquid nitrogen and sewage nitrogen. 4) turn off all the oxygen and nitrogen products and send them out of the valve, and open the vent v...

Pressure swing adsorption oxygen production

What are the process forms and classifications of the air separation unit

What emergency measures should be taken for partial failure of air separation unit

Low temperature valve stuck at low temperature

Ensure that the cylinder is depressurized before starting the air compressor

What are the factors that affect the dynamic adsorption capacity of molecular sieve adsorber of air separation equipment

Physical principle of condensing evaporator

The liquid level metering cylinder and two conduits are formed. The cylinder is divided into two parts by the partition 5, the upper part of the container (gas phase part) and the negative pressure chamber 1 connected; the bottom side of the container through the gasifier 6 and positive pressure chamber 2 connected. The role of the gasifier is to make all the liquid gasification (if the heat uploaded into the pipeline is sufficient to make all the liquid gasification without gasifier), the press...

If the diaphragm box is changed into a diaphragm, bellows or spring tube, it becomes a pneumatic differential pressure transmitter of various types. When this torque is equal to the size of the torque generated by the measurement signal, the main lever stops rotating, at which point the distance between the nozzle and the baffle stops changing and the amplifier steadily outputs a signal pressure. When the measured differential pressure increases, the transmitter and quickly repeat the above acti...

Liquid oxygen products are pumped from the condensing evaporator, compressed to the required pressure by a liquid oxygen pump, then reheated and gasified by a heat exchanger and supplied to the customer, such a process is the oxygen internal compression process. The cost of the heat exchanger in the internal compression process increases because the heat exchanger oxygen channel is subjected to high pressure, but the cost of the liquid oxygen pump is much cheaper than the cost of the oxygen comp...

After passing the strength test and before the air pressure tightness test, steel pipelines should be flushed and purged as required.Over the years, water flushing, air blowing, steam blowing and other techniques are mainly used for flushing and blowing. For small diameter pipelines this is more effective, for larger diameter pipelines often due to the flow rate of the blowing medium does not meet the requirements of the provisions and does not achieve the ideal blowing effect. As pipeline acces...