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Installation of thermal alarm signals and automatic protection control for screw air compressor stations

Release time:

2021-08-09

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Abstract

Serial Number	Measuring Point Name	Oil-free Screw			Oil-injected Screw
Serial Number	Measuring Point Name	Thermal Alarm Signal	Automatic Protection		Thermal Alarm Signal	Automatic Protection
I. Temperature
1	High Exhaust Temperature	Should	Automatic Shutdown		Should	Automatic Shutdown
2	Low Exhaust Temperature	—	—		Should	—
3	High Lubricating Oil Temperature	Should	—		Should	—
4	High Cooling Water Return Temperature	Should	—		Should	—
II. Pressure
1	Low Compressed Air Station Supply Main Pressure	Should	—	Should		—
2	High Compressed Air Station Supply Main Pressure	Should	—	Should		—
3	Low Cooling Water Flow or Pressure	Should	Automatic Shutdown	Should		Automatic Shutdown
4	Low Intake Air Pressure	Should	—	—		—
5	Large Oil-Gas Separator Filter Element Differential Pressure	—	—	Should		—
6	Large Oil Filter Differential Pressure	Should	—	Should		—
7	Low Lubricating Oil Pressure	Should	Automatic Shutdown	Should		Automatic Shutdown
III. Level
1	Low Lubricating Oil Tank Oil Level	Should	—	Should		—
2	High Lubricating Oil Tank Oil Level	—	—	Should		—
IV. Other
1	Air Compressor Unit Control Power Failure	Should	—	Should		—
Note: 1. An alarm should be triggered when the parameters of the alarm device are abnormal, and automatic shutdown should occur if the alarm value continues to exceed the limit; 　　2. The installation of the thermal alarm signal and automatic shutdown device for the air drying and purification device is the same as Table D.

Keywords:

Installation of thermal measurement instruments at the centrifugal air compressor station

Installation of thermal measurement instruments at the screw air compressor station

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