SU899386A2 - Automatic remote control system of gas-reverse gas-turbine plant of ship - Google Patents

Description

(54) SYSTEM OF REMOTE AUTOMATED CONTROL OF SHIP'S GAS-REVERSIBLE GAS-TURBINE INSTALLATION

one

The invention relates to shipbuilding, in particular, to a system for remote automated control of a ship gas recovery gas turbine installation.

According to the main author. St. No. 740607 discloses a system of remote automated control of a ship gas reversing gas turbine plant comprising a generator and a position sensor of a gas sector, a signal generating unit for setting a gas sector drive connected through a logic unit to a gas sector drive, a block and a control mechanism for reversing units with end position sensors, associated with the sensor for the direction of rotation of the propeller shaft and the logic unit, an additional unit for generating the gas sector drive signal, consisting of a unit and a timeblock unit interconnected through a logic unit, the other inputs of which are connected to the propeller rotation direction setting unit, the reverse position sensors of the reverse mechanism, the gas sector drive position sensor and the output of the main signal conditioning unit, and the output gas 1.

However, due to the inadequacy of multipoint control, the system is not highly reliable.

The purpose of the invention is to increase the reliability of the control system.

The goal is achieved by the fact that the system is equipped with additional control devices installed at the remote control station.

10 of the direction of rotation of the propeller shaft and the position of the gas sector, a switch of control posts, units for comparing gas position setting signals and a direction of rotation connected to their outputs by their first and second inputs of an adder, the third input of which is connected to the switch of control posts connected to the output of the adder of a relay load control circuit switching and. relay switching channels for controlling a reversing body, a switching unit for control circuits, auxiliary mechanisms, an output connected to a gas turbine engine control station, one of the inputs connected to an output of an accumulator | A), and two others - with control panels LIE-1-1 auxiliary mechanisms of both control stations, while the outputs of both switching relays are connected respectively to the inputs of the signal conditioning unit and the control unit.

The drawing shows schematically a parae; i, and gammema s and ste m a.

The system includes the setting device 1 and the sensor 2 of the position of the drive 3 of the gas sector, associated with the output of the sensor 2 with one of its inputs, the reverse control control unit 4, C) and the third outputs of which are connected to the sensors 5 and 6 of the end positions of the reverse control mechanism 7 The control direction adjuster 8 is connected via the commutation switching relay 9 to the fourth input of the unit through the reversing units 4. The system also contains additional control points 10 and 11, respectively, the position of the gas sector drive and the direction of rotation of the propeller shaft, and an auxiliary control panel 12 mounted on a remote control station 13. The outputs of the sensors 5 and 6 are also connected to one input of the logic unit 14, the output of which is connected to the drive 3, and the other inputs to the outputs of the time sweep unit 15 and the setting unit 16 constituting the additional driver 17, and the output of the signal conditioner 18, the input which is connected to the output of the switching command i9 relay i9 narrow), the inputs of which are connected to the outputs of setters 1 and 10 and the output of the adder 20, the inputs of which are connected to the outputs of the comparator unit 21, the switch of the 22 posts and the comparator unit 23, the inputs of which are connected to strokes setting devices 8 and 11. The output relay 9 is connected to one input of the switching unit 24 a control circuit, the other inputs of which are connected to the outputs 12 and 25 Nult vspomogatelny.mi control mechanisms, and the output before, assigned for connecting to the control station 26, a gas turbine engine.

The system works as follows.

The gas reversing gas turbine unit (GTU) is controlled from the main or remote station 13 of the control.

To transfer the control of a gas turbine from one post to another, the switch 22 of the control channels must be set to the position corresponding to the required post. The signal from the output of the switch 22 is fed to the input of the adder 20, the other two inputs of which receive signals from the output of the unit 21 for comparing the level of signals of the setting units 1 and 10 of the gas sector drive and from the output of the unit 23 comparing the settings of the setting devices 8 and 11 of the direction of rotation of the rowing shaft.

When the signal level from setters 1 and 10 is equal in the first case and the positions of setters 8 and 11 in the second case match, the output of summattor 20 is sent to the corresponding inputs of the relay 19

switching of load control channels, relay 9 of switching channels of control of reversing bodies, switching circuit 24 auxiliary mechanisms in which simultaneous switching of channels and control circuits takes place,

On the control panels 25 and 12, this lights up with a constant luminescence of the board, indicating that the control posts are switched.

In case the switching of control posts is carried out at a mismatch

signal levels from setters 1 and 10 or when the position of setters 8 and 11 mismatch, the indicated display lights up with a blinking light, providing an indication of inconsistency.

To eliminate the inconsistency, it is necessary to use the readings of the indicators of the signal level of setters 1 and 10 and the position of setters 8 and 11, to make the coordination of setters until the time the blinks stop, i.e. until the moment

it begins to burn evenly, which indicates that the channels and control circuits are switched.

Consider the passage of signals only when controlling from the main panel, since when controlling from a remote panel 13

similarly.

The change in the operating mode of the gas turbine unit is performed by setpoint 1 (or 10).

The signal from setpoint 1 is fed to the input

Relay 19 of switching of load control channels, from the output of which passes to the input of signal conditioning unit 18, where the necessary time program for resetting and boosting power for the signal arriving to input

drive 3 gas sector through the block 14 logic. The latter connects to the input of the drive 3 a control signal from block 18 in the absence of a command to change the direction of rotation of the propeller shaft.

The recognition of the reverse command is provided by applying to the output of the block 14 signals from the setting device 8 (or 11) and the sensors 5 and 6 of the end positions of the mechanism 7 for controlling the reverse.

Simultaneously, in the absence of a signal

the output of the block 18 through the logic block 14 is connected to the time scan block 15 of the additional shaping block 17, the output of which tracks the signal of the signal generating block 18.

The reversal control mechanism moves from the front to the rear input according to the signal of the reverse control control unit 4 due to the mismatch of the specified direction of rotation from the setting device 8 (11) and the sensors 5 and 6 in the presence of the enable signal from the sensor 2 of the gas sector drive 3 position.

When the setpoint adjuster 8 (11) is relocated from the forward position to the reverse or vice versa, logic block 14 disconnects the signal from the output of block 18 from the input of the gas sector drive 3 and the output of the time scan unit 15, simultaneously connecting the output of the installation unit 16 to the time scan unit 15 input and the output of the latter - to the input of the drive 3. After the drive 3 of the gas sector has been developed to release power to the level determined by the position sensor 2, the reversal control unit 4 generates a signal for interchanging mechanism 7.

By a signal from the sensor 5 or 6, fixing the execution of the command by the mechanism 7, the logic block 14 connects the output of the block 18 to the input of the drive 3, ensuring the movement of the gas sector to the position specified by the setting device 1 (10) with the reversed direction of rotation of the propeller shaft.

At the same time, the installation unit 16 is disconnected from the input of the scanner unit 15 and the output of the latter from the input of the drive 3.

If the reverse command is received below the setting of the sensor 2 of the position of the drive 3, the connection of the additional signal conditioning unit 17 is not made.

The use of the proposed system makes it possible to optimize the process of reversing the gas-reversing gas turbine engine by choosing the appropriate program of the timebase unit 15 and the set value from the setpoint unit 16, i.e. by adjusting the parameters of the additional signal conditioning unit for reversing, to ensure high reliability and high quality control of the reversing units of the gas reversing gas turbine engine, which affects the improvement of the maneuvering characteristics of the vessel, increase the survivability of the system while preserving the indicated advantages and, as a result, the survivability of the vessel due to providing more rapid switching of channels and control circuits of a gas reversing gas turbine unit from one control station to another.

Claims (1)

Invention Formula The system of remote automated control of the ship gas reversible gas turbine unit according to the author. St. No. 740607, characterized in that, in order to increase reliability, it is equipped with the Lopolnitelnye control devices for the direction of rotation of the propeller shaft and the position of the gas sector, the control station switch, control units for the position of the gas sector and directions of rotation, connected to their outputs by their first and second inputs by an adder, the third input of which is connected to a switch of control posts connected to the output of an adder of a relay, switching of control channels of heating narrow and relay commutation of control channels of reversing organs, auxiliary mechanisms control circuit switching unit, connects the output terminal to the gas turbine engine control station, one of the inputs connected to the output of the adder, and the other two with control panels of auxiliary mechanisms of both control stations, while the outputs of both switching relays are connected respectively to the inputs of the signal conditioning unit and logic block. Sources of information taken into account in the examination 1. USSR author's certificate No. 740607, cl. B 63 N 21/16, B 63 N 21/22, 16.1 1.78 (prototype).