Monitoring Method of Operation Status of Auxiliary Machines of Large Compressor Units
A technology of running state and compressor, applied in the direction of machine/engine, pump test, mechanical equipment, etc., can solve the problems of reduced motor insulation, explosion of oxygen compressor unit, affecting the quality of compressor compression medium products, etc., to prevent oil cut , the effect of avoiding accidents
Active Publication Date: 2021-05-11
NANJING IRON & STEEL CO LTD
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Problems solved by technology
When the unit is running or shutting down, the auxiliary machine cannot be found in time due to failure and outage, and the fuel tank of the auxiliary machine is low, causing oil to enter the compressor body and the driving motor, which seriously affects the operation safety and equipment safety of the unit.
If lubricating oil enters the drive motor, the insulation of the motor will be reduced, and electrical breakdown or leakage will seriously affect the operation safety of the motor.
When the compressor is running, if lubricating oil enters the compressor body, it will affect the product quality of the compressed medium of the compressor, and seriously affect the operation safety of the compressor unit.
Because the oxygen compressor is completely prohibited from oil, if lubricating oil enters the oxygen compressor, the oxygen compressor unit will catch fire and explode
Method used
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Embodiment Construction
[0011] Below, the present invention will be further described in detail by taking the 1# oxygen-making air compressor of a certain steel factory as an example.
[0012] Such as figure 1 As shown, the working state of each auxiliary machine of the 1# oxygen-making air compressor is monitored by using the method for monitoring the operating state of the auxiliary machines of the large compressor unit of the present invention.
[0013] Install auxiliary contacts on the automatic switch inside the MCC cabinet (box) of each auxiliary machine, take out the automatic switch signal of each auxiliary machine, and use the automatic switch signal as the main power supply circuit signal of each auxiliary machine. The purpose is to discover the power supply situation of the auxiliary machine at the first time, and take emergency measures to ensure the safe production of the equipment.
[0014] Install monitoring points on the auxiliary circuit of the main contactor of each auxiliary machi...
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The invention discloses a method for monitoring the running state of auxiliary machines of a large compressor unit. The monitoring method connects the control signals of automatic switches, contactors, and thermal relays inside the MCC cabinet of auxiliary machines to the DCS system for logic configuration. By reading Each signal realizes the accurate judgment of the running state of each auxiliary machine, effectively avoiding accidents, specifically, when the large compressor is in the running state, it can effectively prevent the lubricating oil from entering the compressor body due to the failure of the auxiliary machine to be detected in time and the dragging motor, so as to protect the compressor and the dragging motor; when the large compressor is in the running state before stopping, it can also effectively prevent the failure of the oil pump, etc. play a protective role.
Description
technical field [0001] The invention relates to a method for monitoring equipment, in particular to a method for monitoring the running state of auxiliary machines of a large compressor unit. Background technique [0002] Among the key equipment for oxygen production and supply guarantee in iron and steel plants, air compressors, superchargers, oxygen compressors, and nitrogen compressors are all large compressors. When the unit is running or shutting down, the auxiliary machine cannot be detected in time due to failure and outage, and the fuel tank of the auxiliary machine is low, causing oil to enter the compressor body and the driving motor, which seriously affects the operation safety and equipment safety of the unit. If lubricating oil enters the drive motor, the insulation of the motor will be reduced, and electrical breakdown or leakage will seriously affect the operation safety of the motor. When the compressor is running, if lubricating oil enters the compressor bo...
Claims
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IPC IPC(8): F04B51/00F04B49/10F04B49/06
CPCF04B49/06F04B49/10F04B51/00
Inventor 张士刚
Owner NANJING IRON & STEEL CO LTD