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What are the classification and manufacturing methods of copper tubes for oxygen pipelines of air separation plants
2022.09.30
What are the configurations of the external compression process of the air separation unit
2022.09.28
What is superheated steam
2022.09.28
How to judge whether there is grease in the oxygen cylinder
2022.09.27
How to store liquid nitrogen in air separation plant
2022.09.26
I. Preface With the rapid development of industry, nitrogen has been widely used in chemical engineering, electronics, metallurgy, food, machinery and other fields. The demand for nitrogen in our country increases at a speed of more than 8% every year. The chemical property of nitrogen is not active, and it shows great inertia under normal conditions, so it is not easy to react with other substances. Therefore, nitrogen is widely used as protective gas and sealing gas in metallurgical industry, electronic industry and chemical industry. Generally, the purity of protective gas is required to be 99.99%, and some require high purity nitrogen of more than 99.998%. Liquid nitrogen is a relatively convenient cold source, which is more and more widely used in food industry, medical service and the seminal storage of animal husbandry. During the production of synthetic ammonia in the chemical fertilizer industry, if the mixture of hydrogen and nitrogen, the feed gas of synthetic ammonia, is...
2022.09.23
During the process of storage and transportation, the liquid storage tank should pay attention to: 1) the protective equipment and instrument of the storage tank should be in good condition; 2) during the process of storage and transportation, the storage tank should be well ventilated, and inflammable substances should not be stored around, no fire; 3) the filling rate of the storage tank is less than 95%, and it is forbidden to overfill or overpressure; 4) when there is liquid in the storage tank, it is forbidden to repair it by fire; 5) the equipment pipeline should be heated slowly when thawing, and do not freeze with overheated working medium or open fire; 6) wear protective gloves when contacting low temperature liquid to avoid direct contact between skin and low temperature liquid; 7) the transportation process should be smooth, and there should be no big bumps.
2022.09.22
The correct operation method of air compressor: Air compressor is one of the main mechanical power equipment of many enterprises, so it is very necessary to keep the safe operation of air compressor. Strictly implementing the operation specification of the air compressor not only helps to prolong the service life of the air compressor, but also ensures the safety of the operators of the air compressor. Now let's learn about the operation specification of the air compressor. I. Before operating the air compressor, we should pay attention to the following problems: 1. Keep the lubricating oil in the oil tank within the scale range. Before the operation of the air compressor, check that the amount of oil in the oiling machine should not be lower than the scale value. 2. Check whether the moving parts are flexible, whether the connecting parts are fastened, whether the lubrication system is normal, and whether the motor and electrical control equipment are safe and reliable. 3. Before t...
2022.09.21
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