Surge control system of compressor unit

Abstract

The invention provides a surge control system of a compressor unit and belongs to the technical field of compressor unit automation control. The surge control system of the compressor unit provided by the invention is low in system operation failure rate and low in long-period operating cost. The surge control system comprises a braker, a high-speed pressure transmitter, a throttling device, a temperature sensor and a gasp-preventing regulating valve and is structurally characterized in that the controller is respectively connected with the high-speed pressure transmitter, the throttling device, the temperature sensor and the gasp-preventing regulating valve, and the high-speed pressure transmitter is used for detecting the pressures of the inlet and outlet of a compressor, converting the pressures into a standard analog quantity signal and sending the standard analog quantity signal into the controller; the throttling device is used for detecting air inflow and air outflow of the compressor, converting the air inflow and the air outflow into a standard analog quantity signal and sending the standard analog quantity signal into the controller; the temperature sensor is used for detecting the inlet temperature and outlet temperature of the compressor, converting the inlet temperature and the outlet temperature into a standard analog quantity signal and sending the standard analog quantity signal into the controller; and the controller is used for receiving pressure, flow, temperature signals input by the high-speed pressure transmitter, the throttling device and the temperature sensor and outputting a surge control signal through operation so as to control a gasp-preventing valve to adjust the inspiratory flows of the compressor.

Description

technical field [0001] The invention belongs to the technical field of automatic control of compressor units, and in particular relates to a compressor unit surge control system. Background technique [0002] In the modern petrochemical engineering industry, large compressor equipment is the key equipment to drive the operation of the process and the heart of the process production device. Safe production is the greatest energy saving. The reliability of the compressor unit control system, the compressor unit control scheme, and the optimization control of the compressor unit body are of great significance to the operation of the device and energy saving and consumption reduction. [0003] Surge control is the core of the control of the turbocompressor unit. The traditional control is implemented by a single-loop regulator or integrated into other systems. The simple control strategy limits the operating area of ​​the unit and the execution speed is slow, which restricts the...

AI Technical Summary

Problems solved by technology

[0003] Surge control is the core of turbocompressor unit control. The traditional control is realized by single-loop regulator or integrated into other systems. Simple control strategy is used to limit The operating area of ​​the unit is limited and the execution speed is slow, which restricts the performance of the unit and the service life of the unit, making the long-term operation cost of the entire system very high

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