R & DCommon troubles and treatment methods of pressure swing adsorption nitrogen making machine
Article Source：Suzhou Shenyue Purification Website：www.szshenyue.comTime：2017-3-15Pageviews
：940
Core prompt：Filter phenomenon: pressure indicator pointer to red zone (pressure difference is too large). Consequence: the pressure difference is too large, the adsorption pressure is decreased, and finally the nitrogen purity flow rate of the nitrogen generator is d
1. filter phenomenon: pressure differential table pointer to red zone (pressure difference is too large). Consequence: the pressure difference is too large, the adsorption pressure is decreased, and finally the nitrogen purity flow rate of the nitrogen generator is decreased. Processing method: replace the corresponding filter after shutdown.
2. automatic blowdown valve (SMC) phenomenon: the leakage of the sewage outlet, the liquid level inside the drain valve exceeds the highest liquid level (MAX), and does not drain the sewage. Consequences: air pretreatment part of the automatic blowdown valve does not drain, will result in water and oil removal effect is not good, and ultimately affect the performance of nitrogen preparation equipment molecular sieve. Processing: it can be packed back after cleaning. Note: in use, a small amount of gas leakage in the sewage outfall is normal.
(1) high pressure: consequence: if the pressure is more than 2 Mpa, it will cause the high voltage jump protection of the cold dry machine. Air-cooled type: pay attention to the environment temperature and the surface of the cooler cooler; water cooling type: cooling water flow, temperature and pressure meet the requirements, the clockwise adjustment of water control valve can reduce the high pressure.
(2) high pressure is low: air cooled type: check the nitrogen equipment and adjust the fan high and low voltage switch setting value. Water cooling type: anti clockwise regulating water control valve.
(3) high evaporation pressure: consequence: affect the water removal effect of cold dry machine, as well as the latter stage oil removal effect. Treatment method: adjust the hot air bypass valve by counter clockwise or adjust the expansion valve counterclockwise.
(4) low pressure evaporation will cause the consequences: ice blockage phenomenon (the compressed air in the water vapor condenses directly into ice, causing pipe blockage) Note: heat pipe valve, water valve of high pressure switch, expansion valve adjustment is not independent, but interrelated, while regulating valves, one observation instrument and until the display parameters within the normal range.
4. activated carbon oil remover function: oil remover as the last barrier to protect nitrogen preparation equipment molecular sieve, its importance is self-evident. Caution: the life of activated carbon from oil remover is about one year. In order to protect the life of molecular sieve, the activated carbon must be replaced once every year, and the activated carbon must be replaced after the oil compressor fails.
2. automatic blowdown valve (SMC) phenomenon: the leakage of the sewage outlet, the liquid level inside the drain valve exceeds the highest liquid level (MAX), and does not drain the sewage. Consequences: air pretreatment part of the automatic blowdown valve does not drain, will result in water and oil removal effect is not good, and ultimately affect the performance of nitrogen preparation equipment molecular sieve. Processing: it can be packed back after cleaning. Note: in use, a small amount of gas leakage in the sewage outfall is normal.
(1) high pressure: consequence: if the pressure is more than 2 Mpa, it will cause the high voltage jump protection of the cold dry machine. Air-cooled type: pay attention to the environment temperature and the surface of the cooler cooler; water cooling type: cooling water flow, temperature and pressure meet the requirements, the clockwise adjustment of water control valve can reduce the high pressure.
(2) high pressure is low: air cooled type: check the nitrogen equipment and adjust the fan high and low voltage switch setting value. Water cooling type: anti clockwise regulating water control valve.
(3) high evaporation pressure: consequence: affect the water removal effect of cold dry machine, as well as the latter stage oil removal effect. Treatment method: adjust the hot air bypass valve by counter clockwise or adjust the expansion valve counterclockwise.
(4) low pressure evaporation will cause the consequences: ice blockage phenomenon (the compressed air in the water vapor condenses directly into ice, causing pipe blockage) Note: heat pipe valve, water valve of high pressure switch, expansion valve adjustment is not independent, but interrelated, while regulating valves, one observation instrument and until the display parameters within the normal range.
4. activated carbon oil remover function: oil remover as the last barrier to protect nitrogen preparation equipment molecular sieve, its importance is self-evident. Caution: the life of activated carbon from oil remover is about one year. In order to protect the life of molecular sieve, the activated carbon must be replaced once every year, and the activated carbon must be replaced after the oil compressor fails.
Keywords：PSA Hydrogen Production，Nitrogen making machine in metallurgical industry
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