Air compressor lubricating and cooling system

Abstract

The invention discloses an air compressor lubricating and cooling system, which comprises a first water pump and a second water pump, and is characterized in that the first water pump and the second water pump are connected with a frequency converter through a line, the frequency converter is connected with a PI controller through a line, the PI controller is connected with a water pressure sensor located at a water supplying pipeline of the first water pump and the second water pump through a line, an electrical main circuit of a control system is that a power line is respectively connected to the frequency converter through a first breaker, and connected to one end of a second alternating current contactor through a second breaker. The air compressor lubricating and cooling system uses the frequency converter to drive water pumps in a constant pressure water supply mode so as to adapt to different working condition requirements, and a better energy-saving effect can be achieved; the air compressor lubricating and cooling system can realize an automatic switching function, ensure the safe operation of a production line, and overcome threat of failures of water pumps or an electronic control system to the production line in operation.

Description

Technical field [0001] The invention relates to a cooling system, in particular to an air compressor lubricating cooling system. Background technique [0002] The modern nylon industry widely uses water-cooled screw air compressors to ensure stable air network pressure with multiple parallel operation methods. The circulating cooling water system mostly uses centrifugal water pumps (one use and one standby), and it runs in a star-delta starting mode. Provide cooling water source to each air compressor through public main water pipe. In the production of nylon, special circumstances (low probability but objective existence) need to take into account the wide range of winding heads for spinning up and unwinding. The number of air compressors is considered based on the maximum amount of air pressure. The configuration of the cooling water pump is also the same. . Therefore, under normal working conditions of the production line, the air compressor accounts for about one-third of t...

AI Technical Summary

Problems solved by technology

Once there is no cooling water supply during the operation of the water-cooled screw air compressor, the temperature of the oil and gas rises rapidly, causing the air compressor to stop at the upper limit of the temperature alarm, and then the entire production line loses pressure and trips

Therefore, once a failure of the water pump or the electric control system occurs during operation, higher requirements are placed on the responsibility and responsiveness of the operator, which poses a great threat to the safe operation of the production line.

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