Compressed air grid-connected energy saving operation method of multi-system air compression station

Abstract

The invention relates to a compressed air grid-connected energy saving operation method of a multi-system air compression station. The lowest air supply pressures required by users under all single system air compressor sets in grid-connection operation are different; multiple systems comprise a plurality of single air compressor set systems. The method comprises the following steps: 1, setting standard pressure for the air compressor set systems; 2, determining a low flow set to be subjected to flow compensation; 3, detecting actual pressure of each system pipe network, and uploading the actual pressure; 4, calculating compensation flow; 5, calculating rich flow; 6, judging flow compensation; 7, when the judgment fails, automatically starting air compressors for compensation by the sets to be subjected to compensation; and 8, when the judgment succeeds, conveying by rich flow sets. According to the compressed air grid-connected energy saving operation method, in the grid-connected operation process of a plurality of air compression stations, the air compression stations with relatively high pressure performs compressed air flow compensation on the air compression stations with low pressure, so that the air compressors of the whole system can meet the respective operation requirements with a relatively reasonable put-into-operation amount.

Description

Technical field [0001] The present invention relates to the automatic pressure difference control technology of an air compressor station. In particular, the present invention relates to a method for the grid-connected operation of compressed air of a multi-system air compressor unit used in a multi-system air compressor station. In the case of inconsistencies in the minimum air supply pressure required by users under each single-system air compressor unit, the relatively high pressure air compressor station during the grid-connected operation of multiple air compressor stations is used to compensate the flow of compressed air to the low pressure air compressor station. Make the air compressor of the whole system meet the requirements of each operation with a relatively reasonable input amount. Background technique [0002] The air compressor station is in actual operation. When the air compressor is running at low load, if the pressure in the air storage tank rises to the set pr...

AI Technical Summary

Problems solved by technology

[0005] The second is the overpressure interlock start-stop electrical control technology of the air compressor. This technology will cause frequent start-stop of the motor when the load changes greatly and the capacity of the air storage tank is small.

It overcomes the control of multiple compressors (or pumps) that only serve as auxiliary start and stop switches in the prior art, cannot be continuously adjusted, and cannot realize the soft start of multiple air compressors, resulting in impact on the power grid and air supply pressure The disadvantages, improve the stability of gas supply

[0013] However, the problems or defects of the above-mentioned previous technical solutions are: when the compressed air of the multi-system air compressor station is connected to the grid, it is difficult to use the relatively high-pressure system’s surplus compressed air flow to perform flow compensation for other poor flow systems connected to the grid. The air compressor station of other systems connected to the grid can reduce the investment of its own air compressor and operate in the most economical mode under the pressure required by it. The use efficiency of the press, to achieve the most economical mode of operation

Images