A synchronous control system and control method for a trt stationary vane actuator
A control system and synchronous control technology, applied in the direction of fluid pressure actuation system safety, fluid pressure actuation system components, mechanical equipment, etc., can solve the problems affecting the service life of equipment, asynchronous action, mechanical damage, etc., to achieve safe and effective The effect of operation improvement, precise control and prolongation of operation life
Active Publication Date: 2017-06-16
鞍山友联自动化工程有限公司
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Problems solved by technology
In practical applications, due to hydraulic pipeline resistance, mechanical load imbalance and other reasons, the strokes of the two sets of oil cylinders in the hydraulic system are not synchronized, and the huge mechanical torque generated by the asynchronous oil cylinders acts on the mechanical structure of the stator blades of the unit for a long time, which will lead to mechanical failure. damage, affecting the service life of equipment, and posing a safety threat to blast furnaces and residual pressure generator sets
Method used
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Embodiment Construction
[0031] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:
[0032] See figure 1 , is a structural schematic diagram of the synchronous control system of the TRT vane actuator of the present invention, a synchronous control system of the TRT vane actuator of the present invention, including an electro-hydraulic servo system composed of a hydraulic system and a control system;
[0033] The pressure oil inlet pipeline of the hydraulic system is respectively provided with a servo valve A1, a servo valve B1, a synchronous valve C3, a manual reversing valve C2 and an electromagnetic reversing valve C1 with an auxiliary handle, wherein:
[0034]The two working oil ports of servo valve A1 are respectively connected to the rod cavity and rodless cavity of cylinder A through hydraulic control check valve I-A2-1 and hydraulic control check valve I-A2-2. The installed position sensor 1 is connected to the servo valve...
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The invention relates to a TRT static blade actuator synchronization control system and control method. The TRT static blade actuator synchronization control system comprises an electro-hydraulic servo system composed of a hydraulic system and a control system. A pressure oil inlet of the hydraulic system is provided with a first servo valve, a second servo valve, a synchronous valve, a manual reversing valve and an electromagnetic reversing valve with an auxiliary handle, wherein the servo valves, a pilot operated check valve, an oil cylinder position sensor and the control system form an oil cylinder automatic control loop; the synchronous valve, a hydraulic reversing valve, a hydraulic lock, the electromagnetic reversing valve with the auxiliary handle and the control system form an oil cylinder manual control loop; the oil cylinder automatic control loop and the oil cylinder manual control loop are switched through the manual reversing valve. The TRT static blade actuator synchronization control system and control method can guarantee that two oil cylinders synchronously run, an automatic control mode, a flexible manual control mode and a hard control mode are set, safe and effective running of a TRT static blade system is guaranteed, control system electric components and servo actuating components are all designed in an anti-explosion mode, and potential safety hazards in an original system are thoroughly eliminated.
Description
technical field [0001] The invention relates to a static blade hydraulic control system of a blast furnace gas residual pressure turbine power generation device (TRT), in particular to a synchronous control system and a control method of a TRT static blade actuator. Background technique [0002] Blast furnace gas residual pressure turbine power plant (TRT) utilizes the by-products of blast furnace smelting——the pressure energy and thermal energy of blast furnace top gas, so that the gas can do work through a turbo expander, converting it into mechanical energy, and then converting the mechanical energy into Electrical energy device. In the TRT device, the electro-hydraulic servo control system belongs to one of the eight subsystems. It realizes the system control of TRT start, stop, speed control, power control, furnace top pressure and process detection according to the instructions of the main control room. The above Functional control is ultimately reflected in controlli...
Claims
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IPC IPC(8): F15B11/16F15B13/02F15B21/08F15B20/00
CPCF15B11/16F15B13/02F15B20/00F15B21/087
Inventor 魏英群魏鹏
Owner 鞍山友联自动化工程有限公司