The cost of the oxygen generator includes power consumption, water consumption, oil consumption, steam consumption, auxiliary material consumption, maintenance cost and production management cost. In order to improve the economy of the oxygen generator, we should strive to produce more products and reduce the production cost.
Electricity consumption accounts for the main part of the cost. The power consumption is mainly the energy consumed by compressed air, and the second is the energy consumption of compressed oxygen. Therefore, the electric energy (kW · h) consumed in the production of 1m3 oxygen is usually used as an indicator to measure the performance of the oxygen generator. The energy consumption of the compressor is related to the compressed air volume, exhaust pressure and compressor efficiency.
Therefore, the following aspects should be paid attention to in order to reduce the cost effectively:
(1) Reduce the operating pressure of the oxygen generator to reduce the power consumption of the air compressor. Therefore, the resistance of unit and pipeline should be reduced as much as possible and the pressure of the tower should be reduced; The main cooling level should be kept to make the main cooling work under the best heat transfer condition to reduce the temperature difference between the main cooling and the pressure of the lower tower; Minimize cold damage.
(2) Improve the efficiency of the compressor. First, we should strengthen the management of the intercooler to make the air cool well.
(3) Increase the air volume. To reduce the switching loss and avoid leakage, more processing air enters the tower to participate in separation.
(4) Increase oxygen production and improve the extraction rate of oxygen. In the adjustment, we should try to reduce the oxygen content in nitrogen.
(5) Extend the continuous operation cycle of the unit and reduce the downtime and maintenance time. Therefore, daily maintenance of unit and regular maintenance of unit shall be strengthened. To ensure the removal effect of water and carbon dioxide.
(6) The leakage of low temperature liquid and low temperature gas in the tower is absolutely avoided. When heating the single unit, the temperature should not be too high.
(7) Comprehensive utilization of production of a variety of products.
