SU955145A1 - Pneumatic signalling device - Google Patents

Description

(54) PNE1 .ATHIC ALARM DEVICE

one

The invention relates to pneumatic automation devices, in particular, to a device. M. Signaling the output of technological parameters beyond predetermined limits.

Pneumatic alarm devices are known that contain cells by the number of input channels, a handshake button, a buzzer and indicators 1.

However, in these devices there is no possibility of indicating the parameters by a flashing signal.

Closest to the proposed technical entity is a signaling device comprising signal conditioning cells, a common alarm node, input channels and a power channel, a buzzer, indicators, an acknowledgment button, and a pulse generator 2.

The known device does not allow the first deviated parameter to be distinguished from subsequent parameters.

The purpose of the invention is the extension of the field of application.

This goal is achieved by the fact that in the well-known signaling device, comprising signal formation cells and a common signaling unit built on three-membrane relays, input channels, a power supply channel, and an audible signal; aor, indicators, acknowledgment button and pulse generator, the general alarm node contains two relays, an acknowledgment button and an audible

 the signaling device, and each cell of the signal form contains three relays and an indicator, the input channel of each signal-forming cell is connected to the positive camera of the first relay and to the normally open nozzles of the second and third relay, the negative cameras of the first and third relay are connected to the atmosphere, the output of the second the relay included in the self-locking circuit is connected to the positive camera of the third relay, the output of which is connected to the indicator, channel

Claims (2)

The 15 power supply is connected to the normally closed nozzles of the first relays of all signal conditioning cells, the nozzle chambers of these relays are interconnected, with the shutdown cameras of the second relay, with the normally open nozzle of the first relay of the last cell and with the input of the pulse generator whose output is connected to the normally closed nozzles. third relays of all cells forming signals, nozzles chamber of a normally open nozzle of the first relay of each cell, connect with normally open nozzles of the first pk; le subsequent cell, with nozzles chamber n The normally open nozzle of the first pCvie of the first cell is connected to the atmosphere, and in the general alarm node the normally open nozzle of the first relay switched on by self-blocking and the positive camera of the second relay are connected to the input of the pulse generator, the shutdown camera of the first relay is connected to the normally open acknowledgment button, the output the first relay is connected to the negative camera of the second relay, which is connected to the buzzer with its output. The drawing shows a diagram of the device. The device contains a cell 1 forming signals, each of which consists of the first 2, second 3 and third 4 three-membrane relays. The output of relay 4 is connected to indicator m. 5. The input channel 6 of each cell is connected to the positive camera of relay 2 and to normally open relay nozzles 3 and 4. Relay 3 is switched on according to a self-blocking circuit, its output is connected to the positive camera of relay 4. Nozzle chambers are normal the closed nozzles of the relay 2 connected to the power supply channel 7 are interconnected with the shutdown cameras of the relay 3, with the generator input 8 pulses and with the nozzle chamber of the normally open nozzle of the relay 2 of the last cell. These cameras of the other relays 2 are connected in series with the atmosphere. The output of the generator 8 is connected to normally closed nozzles of the relay 4 of all cells 1. The general alarm node contains the first relay 9 switched on by the self-locking circuit, the second relay 10 connected by its output with an audible alarm 11, and a normally open acknowledgment button 12 connected to the relay off camera 9. The device works as follows. In the initial state, the input signals in channels 6 are zero. All indicators 5 and alarm 11 are disabled. When you exit the set i / raits of the parameter controlled, for example, by the first cell, channel 6 receives the signal “1, the relay 2 operates, its output switches on the generator of 8 pulses and through the relay 10 it sounds the buzzer I. The relay also works, its output signal The "1 switches the relay 4, as a result of which the indicator 5 is connected to the output of the generator 8. Relay 9 does not work, because the signal" 1. In the shutdown camera of relay 3, the signal "1" is applied, which causes them to switch in all cells except the first one. When signal 1 is being shown on channel 6 of another cell, its indicator 5 is turned on by equal light (without blinking). When button 12 is pressed, relays 9 and 10 are triggered and alarm II is turned off. The appearance of new input signals will not lead to the inclusion of the detector I. Thus, only the first deviated parameter is indicated by flashing signals and an audible signal. The effectiveness of the invention is determined by the increased reliability of the automated objects on which the proposed signaling devices are applied. Pneumatic alarm device comprising signal forming cells and a common alarm node built on a three-membrane relay, input channels, a power channel, a buzzer, indicators, an acknowledgment button and a pulse generator, characterized in that, in order to expand the scope, a common alarm node contains two relays, an acknowledgment button and an audible alarm, and each signal generation cell contains three relays and an indicator, with the input channel of each form cell This signal is connected to the positive camera of the first relay and to the normally open nozzles of the second and third relays, the negative cameras of the first and third relays are connected to the atmosphere, the output of the second relay connected to the self-locking circuit is connected to the positive camera of the third relay, the output of which is connected to the indicator, The power channel is connected to the normally closed nozzles of the first relays of all the cells forming the signals, the nozzle chambers of which are interconnected, with the shutdown cameras of the second relay, with the normally open nozzle of the first relay n the last cell and the input of the pulse generator, the output of which is connected to the normally closed nozzles of the third relay of all cells forming signals, the nozzle chamber of the normally open nozzle of the first relay of each cell is connected with the normally open nozzle of the first relay of the next cell, and the nozzle chamber of the normally open nozzle of the first relay is first the cells are connected to the atmosphere, and in the general alarm unit a normally open nozzle of the first relay connected in a self-blocking scheme and the positive chamber of the second relay are connected to the input of the pulse generator, the shutdown chamber of the first relay is connected to the normally open acknowledgment button, the output of the first relay is connected to the negative relay chamber of the second relay, which is connected to an audible alarm with its output. Sources of information taken into account during the examination 1. USSR author's certificate No. 461414, cl. G Q6 D 7/00, 1973. 2.Pnevmoavtomatika Collection. M., “Science, 1972, p. 51, fig. 5 (prototype).