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Environmental factors affecting the performance of air compressors in nitrogen production systems.
1) The effect of atmospheric pressure. Normal atmospheric pressure is approximately equal to. When the atmospheric pressure becomes low, the compression ratio of the air compressor increases. Almost when the atmospheric pressure decreases, the compression ratio of the air compressor will increase by 6% or 8%, that is, the energy consumption of compression will be increased.
2) The influence of ambient temperature. When the ambient temperature rises, the exhaust volume of the air compressor will decrease and the shaft power will increase. As the ambient temperature increases3, the shaft power increases by about 1%.
3) The influence of air humidity. If the air humidity in the environment is high, then the air compressor will increase the shaft power accordingly, so that it will be consumed on the compressed water vapor, which will also cause the air compressor shaft power to become larger and consume more energy. At the same time, the amount of effective compressed air is reduced, which is not conducive to the operation and maintenance of equipment in the later stage.
4) The influence of the cleanliness of the ambient air. If the ambient air contains dust, sulfide or other hydrocarbons that exceed the normal standard, it will have a great impact on the long-term operation of the air compressor, which will greatly shorten the service life of the air compressor, increase the maintenance and repair costs, and also cause the performance of the air compressor to decline.
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Choose ventilation, good lighting, leak-proof, and stay away from the boiler room.
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(1) Because the air has oxidation properties, especially at higher pressure, the conveying system has a higher flow rate, so the danger of the system has both the risk of oxidation (heat), and the risk of high-speed wear and friction. Because the cylinder, air reservoir and air delivery (exhaust) pipeline of the compressor can occur due to overtemperature and overpressure, the mechanical temperature of each component of the compressor should be controlled within the allowable range.
2) Atomized lubricating oil or its decomposition mixed with compressed air can cause**.
3) The compressor oil seal and lubrication system or air inlet gas do not meet the requirements, so that a large number of oils, hydrocarbons, etc. enter, and are deposited in low-lying places of the system, such as flanges, valves, bellows, reducers, etc., and are gradually atomized, oxidized, coking, carbonized, and decomposed under the action of high-pressure gases, which become the potential conditions of the first class.
4) The deliquescent air and the non-standard cleaning of the system, and the alternating operation of cold and hot may cause rust on the inner wall of the pipe, which will peel off under the action of high-speed gas and become the source of ignition.
5) The unstable and surge state during air compression can lead to a sudden increase in the temperature of the medium. This is due to the local adiabatic compression of the fluid (air) within the system under sudden action.
6) During the repair and installation work, flammable liquids such as wipes, kerosene, gasoline and so on fall into the cylinder, gas reservoir and air duct, which can lead to ** when the air compressor starts.
7) The mechanical strength of the compression part of the compression system does not meet the standard.
8) The compressed air pressure exceeds the regulations. The above situations may lead to the failure of the air compressor or the occurrence of the air compressor accident.
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The operating environment of the air compressor is quite important, and its fierce requirements for the long-distance environment are:
1. Clean air and bridge. If the environment is poor, the inhaled air is very dirty, which will cause the inside of the air compressor to be very dirty and affect the service life, so the air compressor operating environment should be clean.
2. Good ventilation. If the environment is not well ventilated, the radiator will be clogged, resulting in shorter maintenance intervals. Therefore, the operating environment of the air compressor should be well ventilated.
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The most important thing to test is the safety valve of the air compressor. The safety valve is checked frequently, and the probability of danger will be much smaller. In addition, you need to pay attention to maintenance. Maintenance needs to pay attention to lubricating oil, do not use inferior lubricating oil.
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Air humidity: The higher the air humidity, the higher the moisture content in the air, and the greater the working pressure of the air compressor. Therefore, a good working environment, its air humidity must be low, and the lighting effect must be good.
The place with good lighting effect can not only reduce the humidity in the air, but also make it more convenient for the internal retrieval, maintenance and installation of the air compressor.
Ventilation effect: The environmental quality of places with good ventilation effect should be better, for air-cooled air compressors, the ventilation effect directly affects the quality and service life of the air compressor.
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1. It can be used as an atmosphere energy after the atmosphere is tightened, and it can be used as energy, machines and pneumatic tools, and control instruments and automatic assembly, instrument control and automatic assembly, such as tool exchange in machining centers.
2. It can be used for gas transportation, air compressor is also used for gas pipeline transportation and bottling, such as long-distance gas and natural gas transportation, LV gas and carbon dioxide bottling, etc.
3. Used for gas decomposition and polymerization In the chemical industry, some gases are decomposed and polymerized without lidine after the pressure of the compressor is advanced. For example, the decomposition of helium with hydrogen, the decomposition of methanol between hydrogen and carbon dioxide, the decomposition of urea by carbon dioxide and ammonia, etc. and high pressure under the basin of polyethylene.
4. It is used for refrigeration and gas respectively and the gas is liquefied by the air compressor, cooling, contraction, and artificial refrigeration, and this kind of compressor is called an ice machine or ice machine on weekdays. If the liquefied gas is mixed gas, each group can be separately inserted in the separate assembly to obtain various gases of passing purity. For example, the separation of kerosene pyrolysis gas is first tightened, and then the components are separately entered at the divergent temperature.
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Hanos air compressor answers for you:
What should our air compressor users pay attention to when using it to prevent air compressor accidents?
1) The air compressor and its supporting storage tanks and piping systems should be designed in accordance with the relevant national design specifications, and a dry filter should be installed before the suction pipe of the large air compressor.
2) After the air is compressed, the temperature rises sharply, and the air compressor must be equipped with an effective cooling system. For the cooling water system of large air compressors, the anti-water protection device must be sensitive and reliable. If the water supply is interrupted during operation, it is strictly forbidden to forcibly supply water, and it needs to be stopped.
3) The design and operation of the air storage tank shall comply with the provisions of the "Regulations for the Safety and Technical Supervision of Pressure Vessels", and the necessary pressure display and overpressure adjustment and alarm systems shall be installed, and interlocking devices shall be designed if necessary.
4) The air with a certain pressure has strong oxidation, therefore, the air should be strictly prevented from mixing lubricating oil and other organic substances into its interior during storage and transportation, so as to avoid oil and other organic substances being oxidized, burning or accidents in the system.
5) In the process of high-speed air flow, rust and mechanical impurities may become a hot fire, so the position and height of the air inlet of the compressor during operation should meet the safety requirements to prevent foreign matter from entering.
6) If the sound is abnormal during the operation of the air compressor, stop immediately for inspection and treatment.
7) The continuous cold start of the large air compressor should not exceed three times, and the hot start should not exceed two times.
He didn't have to set it, he set it up.
Look at what type of machine, as well as pressure, you are assembled Dafeng 707 host, two-stage compression, the working temperature is divided into several parts, the compression temperature is about 140 degrees Celsius, and the normal working temperature after cooling is about 70 degrees Celsius.
The first floor is right.
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