Compressor unit speed regulation control system
A technology for regulating control and compressor units, applied in pump control, mechanical equipment, machines/engines, etc., can solve the problems of high system connection and failure rate, high long-term operating cost, and reduce operating failure rate and long-term operating cost. , fast response, good transmission effect
Inactive Publication Date: 2015-10-14
LIAONING HUAXING SENWEI TECH DEV
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Problems solved by technology
Each discrete instrument requires manual operation, and the connection and failure rate between various systems are high, so the long-term operation cost of the entire system is very high
Method used
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Embodiment Construction
[0028] Such as figure 1 As shown, the present invention includes a speed sensor, a controller, an electro-hydraulic converter, and a throttle motor; the controller is connected to the speed sensor and the electro-hydraulic converter, and the electro-hydraulic converter, the throttle motor, and the steam turbine valve are connected in sequence.
[0029] The rotational speed sensor measures the rotational speed signal of the rotor and sends it to the controller.
[0030] The controller receives the speed sensor signal and compares the set value to perform PID calculation, and the output speed regulation control signal is converted into a secondary oil pressure signal through the electro-hydraulic converter, and the valve opening is controlled by the wrong throttle oil motor to control the entry into the steam turbine. steam flow.
[0031] The controller employs a triple redundant (TMR) controller.
[0032] The speed regulation control signal is a 4-20mA current sign...
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The invention particularly relates to a system for adjusting and controlling a revolving speed of a compressor unit, and belongs to the technical field of compressor unit automation control. The system for adjusting and controlling the revolving speed of the compressor unit provided by the invention is low in system running failure rate and low long-period operation cost. The system comprises a speed sensor, a controller, an electro-hydraulic converter and a pilot oil valve hydraulic servomotor and is structurally characterized in that the controller is respectively connected with the speed sensor and the electro-hydraulic converter; the electro-hydraulic converter, the pilot oil valve hydraulic servomotor and a steam turbine air valve are sequentially connected; the speed sensor is used for measuring a revolving speed signal of a rotor so as to transfer the revolving speed signal to the controller; and the controller receives a speed sensor signal so as to compare the speed sensor signal with a set value to carry out PID(proportion integration differentiation) operation, outputs a speed-regulating signal which is converted into a secondary oil pressure signal through the electro-hydraulic converter, the pilot oil valve hydraulic servomotor is used for controlling and regulating the opening of the air valve so as to control the steam flow which enters a steam turbine.
Description
technical field [0001] The invention belongs to the technical field of automatic control of compressor units, and in particular relates to a speed adjustment control system of compressor units. 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] Compressor speed control is the core of turbine compressor unit control. Traditional control requires multiple discrete instruments such as electronic speed governor, interlocking self-protection system, load regulator, etc. to realize. Each discrete instrument requires hum...
Claims
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IPC IPC(8): F04B49/06
Inventor 侯大宇
Owner LIAONING HUAXING SENWEI TECH DEV