SU1300409A1 - Pneumatic centralized control system - Google Patents

Abstract

The invention relates to pneumatic automation devices intended for use in systems for centralized control of groups of the same type of aggregates. The aim of the invention is to enhance the functionality of the system. The system is equipped with groups of 6 memory nodes according to the number of units, the number of memory nodes in each group is equal to the number of actuators on one unit, and the call terminal 4 controls installed on the console 1 by the number of units, each memory node contains the first, second, third. i (L

Description

the fourth, fifth and sixth relays 7-12, the output channel of each terminal of call 4 is connected to the chambers of the corresponding P, and the output of each switch avt.-diets. Modes 2 is connected to P group memory nodes corresponding to a given unit; normally closed nozzle node nozzles are connected to

one

The invention relates to automation, namely to systems for centralized control of groups of similar types of aggregates.

The purpose of the invention is to expand the functionality of the system.

The drawing shows a diagram of the proposed pneumatic system, designed for centralized remote control of a group of n-type units, each of which contains m two-position actuators.

The pneumatic centralized control system contains a remote control 1, containing switches 2 modes Automatics - remotely (A, - AG,) follow switches 3 (SP, - SP), aggregate call terminals 4 (B - n input channels 5 control actuators and memory nodes 6. Each node 6 contains the first 7, second 8, third 9, fourth 10, fifth 11 and shchee 12 relays, as well as the output control 13 of the actuators.

Nodes 6 of the memory are combined into groups. By the number of units, the number of nodes of the memory in each group is equal to the number of actuators on one unit (in the drawing, the vertical rows of nodes 6 of the memory form groups corresponding to the units).

The next switch 3 has a control knob 14 which, in Automatic mode, rotates automatically and occupies a position determined by the signal from the output of the memory node's relay 10 of the last unit, and in the Remote mode, this knob can be turned by the operator for the input control channels of the respective actuators. The output of each of the following switches 3 is connected to the cameras P of the memory nodes. Such an implementation allows controlling the two-position actuators of a group of similar units by on call. 1 ill.

five

Dani control signal to the actuator.

Knob 14 of the following switch simultaneously serves as an indicator: by its position, you can determine the value of the command signal to the operating mechanism (MI).

Pneumatic centralized control system operates as follows.

In Automatic mode, the output signals of switches 2 are 1. At the same time, the input control signals for actuators (MIs), coming through channels 5 from an external control device, for example, from a computer complex, pass through normally closed nozzles of relay 9 and through repeaters implemented on relay 11, and through channels 13 go to IM. At the same time, the output signals of relay 9 through normally open nozzles of relay 8 and through repeaters built on relay 12 enter the nozzle chambers of normally open: relay nozzles 9, whose output, however, does not pass, since their positive signal 1 from switch 2. The sixth relay 12 serves to obtain an active (with power) memory circuit implemented when the output relay 9 communicates via relay 8 and relay 12.

If no unit is called, i.e. Signals O are supplied from the call terminals 4, signals from the relay 9 outputs through normally closed relay nozzles 1.0 are not transmitted. To the following switches 3, the signal O is received through a chain of series-connected 0 relays of 10 memory nodes corresponding to the same IM of all units. In this case, the control knobs 14 are set0

five

0

31300409

are in the Closed position, and the output signals of the follow switches are O.

To call the unit to the console in order to obtain information about the positions of the MI and (or) to switch to the remote control of the MI using the following switches from the corresponding call terminal 4, a signal is given

1. In this case, the output signal of the relay 9, 10th control of the call terminal by the number if it is equal to 1 passes through the chain of the relay 10 to the following switch 3, the handle 14 of which is set to the Open position, and its

the output signal becomes 1. f5 plus cameras of the second and fourth

, relay, and the output of each switch

When the output signal of the relay 9 is O, the follow switch remains in the Closed position. After the unit is called to go to the remote control, the corresponding switch 2 Automatic is remotely switched to the Remote position, at which its output

25

positional actuators, characterized in that, in order to expand the functionality, groups of memory nodes are introduced into it, according to the number of units, the number of memory nodes in each group being equal to the number of actuators on one unit, and installed on the remote control unit, each memory node contains the first, second, third, fourth, fifth, and sixth relays, with the output of the call terminal terminal being connected to

the signal is equal to O. In this case, the input control signals to the MI of the called unit, coming through channels 5, will cease to pass through relay 9, the output of relay 8 through relay 12 and relay 9 will connect with its normally open nozzle. Relay 7 serves to delay the operation of relay 8 until the next switch is activated.

thirty

auth modes - diets, connected to the positive chambers of the third relay of the memory nodes of the group corresponding to the given unit, normally closed nozzles of the third relay connected to the input control channels of the respective actuators, the output of each of the following switches is connected to the positive chambers of the first relay and to the normally closed nozzles of the second relay nodes / ioB of the memory corresponding to the identical actuators of all units, at each node the output of the first relay is connected to the minus chamber of the second relay, the output of which is connected to Lyusova chamber sixth relay, whose normally closed nozzle connected to the passage

After that, power supply 35 appears, and the output is connected to a nozzle

the chamber of a normally open nozzle of a third relay connected by its output to a normally open nozzle of the first and second relay, with a normally closed nozzle of the fourth relay and with a positive camera of the fifth relay whose output communicates with the control output channel of the corresponding actuator, normally closed nozzle of the fifth the relay is connected to the feed channel, the nozzle chamber of the normally open nozzle of the fourth relay is central with the output of the fourth relay of the memory node corresponding to one pneumatic centralization system to the named actuator

of the previous unit, the outputs of the fourth relay of the group of memory units corresponding to the last unit are connected to the inputs of the following switches; change the AI position by turning the knob 14 of the next switch 3. If the call reset signal, the relay 8 switches, the output signal of the relay 9 will pass through its normally open sop-40 lo, the feedback through relays 8 and 12 will close and therefore the signal in the channel: 13 will be remembered. Further, it is possible to call other units and control their MI with the help of the following 45 switches.

Claims (1)

Invention Formula control, containing a remote control with mode switches mounted on it. - diets. , and remote control units - followers of transferors, and nozzle chambers with normal switches, according to the number of executive nozzles of the fourth relay nodes of the mechanisms on arpef are, as well as input control output channels of two ti group corresponding to the first unit, connected to the atmosphere, to control terminal call number positional actuators, characterized in that, in order to expand the functionality, groups of memory nodes are introduced into it, according to the number of units, the number of memory nodes in each group being equal to the number of actuators on one unit, and installed on the remote control number call terminals units, each memory node contains the first, second, third, fourth, fifth and sixth relays, and the output of the call terminal cdrc is connected to 0 five 0 auth modes - diets, connected to the positive chambers of the third relay of the memory nodes of the group corresponding to the given unit, normally closed nozzles of the third relay connected to the input control channels of the respective actuators, the output of each of the following switches is connected to the positive chambers of the first relay and to the normally closed nozzles of the second relay nodes / ioB of the memory corresponding to the identical actuators of all units, at each node the output of the first relay is connected to the minus chamber of the second relay, the output of which is connected to Luce chamber of the sixth switch, which normally zakteley and nozzle chamber normally covered by the fourth nozzle relay nodes PA ti group corresponding to the first unit, connected to the atmosphere, to 51300409 6 the camera of the normally open le and minus chamber of the sixth nozzle of the fifth and sixth relay, the camera of the relay are also connected to all the nodes of the memory of the normally closed nozzle of the first.