SU1453430A1 - Device for signalling the state of actuation mechanisms - Google Patents

Abstract

The invention relates to the automation of technological processes and is intended to be used as a display tool on dynamic mimics, which allows signaling not only the static end and dynamic intermediate positions of two-position actuators, but also to ensure the accuracy and consistency of the display in them. the intensity of the technological process with the serial connection of the latter with other actuators, possessing to both the first control organs their end positions and can be used in the control systems in the gas, chemical, power and others. industrial fields, for signaling when the process is not sufficient quantitative characteristic state. The aim of the invention is to increase the information content of the device by signaling the intensity of the technological process in the path of two series-connected actuators. To do this, the device containing the first and second tires of information about the position of the first actuator, the first and second buses of information about the position of the second actuator, the Reset tire, the first and second light indicators of the position of the first actuator open, the position indicator light of the first actuator closed, light indicator of the state of the communication line between the actuators, the first position indicator Opened the second actuator, the impu generator All, pulse distributor, two triggers, short pulse shaper, NOT element, pulse distributor, eleven AND elements and six ISH1 elements, a second actuator position sensor, analog signal to frequency converter, second intermediate signal generation unit mechanism, three elements AND, five elements OR, - prohibition element, bus Return, position indicator light Closed the second actuator and the second position indicator Access the second actuator. With the help of light indicators, information is obtained on the position of the actuators, both in the extreme and in the intermediate, on the motion of the actuators and the direction of motion, as well as on the intensity of the passage of the technological process. 4 silt (O (L 4 sl oe. 4 Od

Description

The invention relates to the automation of technological processes and is intended to be used as a means of displaying information on dynamic displays, allowing signaling not only about the static end and dynamic intermediate positions of two-way actuators, but also to ensure the integrity and durability of the display. the state of intensity of the technological process in them when they are connected in series with other actuators, possessing, as the first, control bodies of their final positions, and can be used in control systems in the gas, chemical, energy and other sectors of the industry, when there is not a sufficient quantity for signaling a technological process, but only an inadequate quality characteristic 25 condition

The purpose of the invention is to increase the information content of the device by signaling the intensity of the technological process in the path 30 of two series-connected actuators.

Fig. 1 shows a functional diagram of the device, Fig. 2 is a diagram of one of the possible embodiments of an analog signal to frequency converter, Fig. 3 and 4 are diagrams of a node for generating signals of the intermediate position of an actuator with hydraulic drive house and electric drive, respectively. .

The device contains information 1 and 2 on the position of the first actuator, respectively, Closed and Open, the 3 position indicator light. The first actuator is closed, the position indicator lights 4 and 5 are open. The first actuator is open, elements OR 6-11, elements AND 12-22, bus Reset 23, bus 24 and 25 information about the position of the second actuator, respectively Closed and Open, shaper 26 short pulse, pulse generator 27, triggers 28 and 29, element OR NOT 30, distributor 31 pulse s, the element is not 32, an OR gate 33, the indicator light 34

50

55

to 15 20 25

thirty

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0

five

link state between actuators, position indicator light 35. Closed second actuator, light indicators 36 and 37 position. Open second actuator, prohibition element 38, position sensor 39 of second actuator, analog signal to frequency converter 40, node 41 forming the intermediate position of the second actuator, element OR 42, bus Return 43, element OR 44., elements AND 45-47, elements OR 48 and 49. The arrow indicates the direction of movement Eni material flow in the path containing sequentially connected first and second actuators.

Analog-to-frequency converter 40 is made on resistors 50-62, trigger 63, operational amplifier 64, diode 65, capacitor 66, transistors 67-70, switch 71, which provides connection to the input of converter 40 as analog current signals (resistor 57 and analog voltage signals (resistor 55), depending on what the output signal of position sensor 39 is.

The signal positioning unit 41 of the intermediate position of the hydraulically actuated actuator (FIG. 3) is made of elements AND 72-74, elements OR-NE 75 and 76, control lines 77 and 78. The node 41 of forming signals of the intermediate position of the regulating actuator with electric drive (figure 4) is made of three elements OR 79-81, element OR NOT 82, triggers 83 and 84, elements AND 85-87, control buses 88 and 89, and bus Stop 90.

The device works as follows.

The initial state of the device elements depends on the initial state of both actuators, as well as on whether signals were sent or not on Reset 23 and Return 43 buses. In the case of a logical unit signal on the Reset 23 bus, trigger 29 generates on its direct output a single logical signal, and in the inverse - zero, and vice versa, if the signal of a logical unit was fed through the bus Return 43.

We take the starting position when the actuators are in the closed state. In this case, the busbar f and 24 information about the position of the first and second actuators, respectively, are fed to the device with single logic signals, the first of which through the OR 6 element causes a steady light of the position indicator 3 Closed by the first actuator, and the second through the OR element 33 causes a steady glow of the position indicator light 35. The second actuator is closed. In this case, a single signal received (via bus 24 of information about the position of the second actuator, inverted by the element NOT 32, prohibits the LED indicator of the state of the communication line between the mechanisms to light up and, through the element OR 10, prepares the elements Both 14 and 19 at the moment when the first actuator reaches its final open position. In the same initial state, the open positions of the first and second actuators on tires 2 and 25 are zero ogicheskie signals, whereby the LEDs 4, 5 and 36, 37 respectively open state of the first and second

actuators included .., i.

When applying to the drive of the first.

The complementary opening command mechanism (not shown) of the chain begins to open. As soon as the signal on bus 1 of the information about the position of the first actuator is closed becomes logical zero, the 3 position indicator light closes the first actuator will go out, and the general indicators 4 and 5 will turn off. The first actuator will flash with a flashing light, g will indicate movement first actuator towards the open. If the latter reaches its final open position, then on bus 2 the information about the position of the first actuator is nil-.

ten

the left logical signal will change to. the single and flashing lights of the 4 and 5 position indicators Open the first actuator will be switched to even, despite the switching of the trigger 29 to the inverse state by the output signal of the short pulse generator 26. The inverse state of trigger 29 is maintained until a single signal arrives from the output of prohibit element 38 or via the bus. Reset 23. This state is maintained for as long as 15 while the second actuator

is in the closed state. I

The opening of the second actuator is carried out by feeding control bus 78 or 89

20 commands in the form of a single logical signal, and as soon as the second execution mechanism starts to open, i.e. moving away from its final closed position, a zero logic signal will be sent to the device via bus 24 of the information about the position of the second actuator, with which the light previously illuminated

30 indicators 4 and 5 of the position Open the first actuator, and also the extinguished light indicator 34 of the state of the communication line between the actuators emit a running light, the intensity of which speed is minimal and is determined by the position of the slider 53 of the analog converter 40 because

40, a zero logic signal arriving on the bus 24 of information about the position of the second actuator through the element OR 10 locks the elements AND 14 and 19, and through the element 32 opens the element AND 21. This allows the passage of signals from the pulse distributor 31 to the indicator lights 4 and 5 positions. The first actuating mechanism 50 is open and the link state indicator 34, the sequence of highlighting of which is determined by the direction of movement of the material flow in the path. At the same time, with the running light blinking, the light of the light vehicle, the light indicators 36 and 37 are open for the second actuator, which indicates a dynamic, transient mode in the direction of increasing its flow area of the second actuator. As this cross section increases, the intensity of the traveling light increases. Thus, the running luminosity of the lights of indicators 4 and 5 of the Open position of the first actuator and the indicator 34 of the line of communication between the mechanisms with increasing intensity and the flashing glow of the light indicators 36 and 37 of the position of the second actuator indicate that the flow of material flow in the path through the opening of the second actuator increases ..

The opening of the second actuator occurs until a single logic signal is present on bus 78 or 89, or a single logic signal is sent to bus 90. In this case, the second actuator will stop, the flashing lights of the light indicators 36 and 37 will open. The second actuator will stop, and a second logic signal will be formed at the second output of the intermediate position signal generating section 41 of the second actuator, which will open elements 46 and 47 and permits the passage on the same indicator lights 36 and 37 of signals from the distributor 31 pulses. Consequently, all light indicators 4, 5, 34, 36 and 37 of the path light in the running light mode, the intensity of which is determined by the degree of the half-open static position of the second actuator and characterizes the flow rate of the material flow in the path at a given time. At the same time

the traveling light path does not change.

The continued presence of running light on the mimic may turn into an annoying factor for the operator. In order to avoid this, a single logical signal is sent to the Reset 23 bus, which translates the trigger 29 from the inverse to the forward state and terminate.

This transmits signals from the pulse distributor 31. But at the same time, through the elements of And 14, 19 and 20 g, the long-duration potential signals come to the light indicators 4, 5 and 34, translating them into a steady light-emitting mode. An even light through the element AND 45 is highlighted.

10 also the light indicator 37 of the position Opened of the second actuator, and the light indicator 36 of the position Opened of the second actuator is turned off. This indicates that the second actuator is in an intermediate, semi-open static position, and in the vehicle there is a stationary technological process.

If it is necessary to change the flow area of the second actuator in the direction of decreasing it or increasing it, the command unit logic signal is fed to the Smaller, Close, or Bus 78 or 89 of the More, Open, respectively. When a command is sent to control bus 77 or 88, the position indicator light 37 is open for the second actuator, and the position indicator light 35 for 35 is closed with a blinking light, indicating that the second actuator is in a dynamic position. transition state in the direction of decreasing of its bore section. At the same time, the light indicators 4 and 5 of the position of the first open executive mechanism and the link state indicator 34 between the executive mechanisms of their state, i.e. even luminescence, do not change. As soon as the second actuator stops by removing the command signal from the bus 77 0 or 88 control or sending a signal via the Stop 90 button, the flashing light of the position indicator light 35 closes the second actuator stops and the indicator light 37 opens the second actuator again. even light. When commanding the bus 78 or 89 to control the flashing light, the light indicators 36 and 37 are open. The second actuator is open, which indicates that the second actuator is in a dynamic transition mode in the direction of increasing its flow area. At the same time, the light indicators 4 and 5 of the position Open of the first executive mechanism and the indicator 34 of the state of the communication line between the actuators also do not change their state and continue to be displayed with a steady light.

Such local changes in the flow area of the second actuator do not stop the movement of the material flow in the path, but only transfer it from one level of flow to another. If the operator needs information on the flow rate of the material flow in the path in stationary mode, a single logic signal is fed to the bus 43 manually from any instantaneous button, which returns trigger 29 to the inverse state and causes a running light of the indicator lights 4 and 5, the open state of the first actuator and the link state indicator 34 between the actuators are open, the intensity of which is determined by the flow area in the intermediate static state skom half-open position of the second actuator. When information is retrieved by a single logical signal through the bus. Reset 23, the signaling of the technological process in the path returns to the previous state. I

If under the action of the command

When the signal arrives on control bus 78 or 89, the second actuator opens fully, then the indicator lights 36 and 37 are open. The second actuator is illuminated in steady light. Thus, the whole technological path, containing two successively connected actuators, will shine with a steady light, evidence of the complete opening of both actuators and the maximum consumption of the material flow, the quality characteristic of which can be

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5 Q

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This is done by supplying a single logical signal on the bus Return 43. With this, the running glow will resume, the intensity of which will be maximized. In cases where the second actuator protects the object from dangerous emergencies, for example, surge, the running glow can be resumed automatically by a discrete turn-on signal into the control mode of the corresponding controller, which is fed to the bus Return 43 when the control approaches actuator to the boundaries of the critical flow areas.

Signaling the transition of the first actuator from the open to the closed position while the second actuator of the mechanism is in the fully open or semi-open static state is carried out as follows. When a closing command is sent to its actuator (not shown), the latter will begin to close. As soon as the signal on bus 2 of the position information of the first actuator becomes logical zero, the indicator lights 4 and 5 are open. The first actuator is open and the link state indicator 34 between the actuators is irrespective of how much light they are flashing (steady or running). ), goes out, and the first 3 position indicator light is closed by the first actuator, flashing, indicating the movement of the first actuator to the closed position the While signaling the final open or static half-open state of the second actuator is retained, since the prohibition element 38 is allowed to pass a single signal from the direct output of the trigger 28 of the single signal to the input of the trigger 29, which switches to the forward state. A single signal from its direct output enters the inputs of elements And 22 and 45, thereby maintaining an alarm with an even light on the position of the second actuator, at which the transient began,

transition to the closed position of the first actuator.

When the first actuator reaches the closed position on the bus 1, the information about the position of the first actuator appears a single logical signal that translates the flashing light of the first light indicator 3 position Closed the first actuator into a steady light, indicating that the first shutdown process has finished actuator. In this case, the trigger 28 is switched to the inverse state, but the signaling of the position of the second actuator is maintained, since the inputs of the AND elements 22 and 45 through the OR element 9 receive a single signal from the bus 1 of the position information of the first actuator. The presence of this signal in the closed position of the first actuator makes it possible to autonomously control and signal the position of the second actuator in cases where it is necessary to test its operation, for example, during the preparation of the process.

Formula

the invention

A device for signaling the status of actuators, containing the first bus of information about the position of the first actuator, which is connected to the first inputs of the first trigger and the OR-NOT element and to the first input of the first OR element, the output of which is connected to the position indicator light Closed first - a second mechanism, a second bus of information about the position of the first actuator, which is connected to the second inputs of the first trigger and the element OR NOT and to the first inputs of the first, second th, third, fourth, fifth, sixth and seventh elements X input of a short pulse, the output of the first AND element is connected to the first input of the second OR gate whose output is connected to a first indicator freshly ovym position to open the first actuator mecha

ten

IQ 15 20 25 DA

35

before ..

50

five

ma, the output of the second element AND is connected to the first input of the third element OR, the output of which is connected to the second position indicator light Opened by the first actuator, the output of the third element AND is connected to the first input of the eighth element AND, the output of which is connected to the first input of the fourth element OR, the output which is connected to the light indicator of the communication line between the actuators, a pulse generator, the output of which is connected to the first inputs of the ninth and tenth elements And, the output of nine The first element AND is connected to the second input of the first element OR, the output of the tenth element AND is connected to the second inputs of the second and third elements OR, the first and second outputs of the first trigger are connected to the second inputs of the ninth and tenth elements AND, the output of the OR element respectively - NOT connected to the third inputs of the ninth and tenth elements AND, the Reset bus, which is connected to the first input of the second trigger, the first output of which is connected to the first inputs of the fifth and sixth elements OR, and to the second input of the fourth element AND, output Is connected to the second input of the fourth element OR, the output of the fifth element OR is connected to the second inputs of the fifth and sixth elements AND, the outputs of which are connected to the third inputs of the second and third elements OR, respectively, the second output of the second trigger, The second, third and seventh elements And, the pulse distributor, the first, second, third and fourth outputs of which are connected to the third inputs of the first, second, third and seventh elements And, the output of the sixth element And The LI is connected to the first input of the eleventh element AND, the first bus of information about the position of the second actuator, which is connected to the second input of the fifth element OR, and through the element is NOT connected to the second input of the eighth element And, the second bus of information about the position of the second actuator, which is connected with the second input of the eleventh element And, the first light

position indicator The second actuator is open, which is characterized by the fact that, in order to increase the informativeness of the device by providing an indication of the intensity of the process in the path of two serially connected actuators, a second position actuator position sensor, analog converter, are inserted into it. signal to frequency, the node forming the intermediate position of the signals of the second executive mechanism, the twelfth, thirteenth and fourteenth elements And, the seventh, and the eighth, ninth, ten and eleven elements OR, a prohibition element, a tire Return, a position indicator light Closed the second actuator and a second light position indicator The second actuator is open, the first output of the first trigger is connected to the first input of the prohibition element, the output of which is connected to the first input of the second trigger, the second bus of the position information of the first actuator, is connected to the second input of the inhibit element, the position sensor of the second actuator is An analog signal to frequency converter is connected to the input of the pulse distributor, the output of the short pulse shaper is connected to the first input of the seventh OR element, the output of which is connected to the second input of the second trigger, the return bus is connected to the second input of the seventh element OR, the first bus of information about the position of the second executive mechanism is connected to the first input of the eighth element OR, and to the first input of the node forming the intermediate position of the second executive

ten

20

five

the first output of which is connected to the second input of the eighth SHS element, the output of which is connected to the position indicator light. The second actuator is closed, the second position information bus of the second actuator is connected to the first input of the ninth OR element, and to the second input of the intermediate signal generating unit position of the second actuator, the second output of which is connected to the first input of the twelfth element AND and the second input of the ninth element OR, the output of which a first input connected to the thirteenth and fourteenth AND gates whose outputs are connected to first inputs, respectively, tenth and eleventh OR elements, the outputs of which are connected respectively to the first and second light indicators of position

25 Open the second actuator, the output of the seventh element I is connected to the second input of the thirteenth element I, the output of the first element I is connected to the second input of the fourteenth element I, the output of the pulse generator is connected to the third input of the node generating the intermediate position signals of the second actuator, the third output of which connected to the second inputs of the tenth and eleventh elements OR, the output of the eleventh element AND is connected to the third inputs of the tenth and eleventh elements OR,

-the first bus position information of the first actuator is connected to the second input of the sixth element OR, the output of which is connected to the second input of the twelfth element AND, the output of which is connected to the fourth input of the eleventh element OR.

thirty

five

Fig

FIG. 2

Compiled E. Budarina Editor N. Tupitsa Tehred I. Khodanich Proofreader E. Lonchakova

Order 7287/47

Circulation 518

VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5

Fig.Z

FIG.

Subscription

Claims (1)

Claim A device for signaling the state of the actuators, containing the first bus information about the position of the first actuator, which is connected to the first inputs of the first trigger and the element OR-HE and the first input of the first element OR, the output of which; connected to the light indicator of the closed position of the first actuator, the second bus information about the position of the first actuator, which is connected to the second inputs of the first trigger and the element OR-HE and to the first inputs of the first, second, third, fourth, fifth, sixth and seventh elements and with the input of the short-pulse driver, the output of the first AND element is connected to the first input of the second OR element, the output of which is connected to the first light indicator of the Open position of the first executive the mechanism, the output of the second AND element is connected to the first input of the third OR element, the output of which is connected to the second position indicator light Open the first actuator, the output of the third AND element is connected to the first input of the eighth AND element, the output of which is connected to the first input of the fourth OR element, the output of which is connected to a light indicator of the state of the communication line between the actuators, a pulse generator, the output of which is connected to the first inputs of the ninth and tenth elements And, the output is of the ninth element AND is connected to the second input of the first OR element, the output of the tenth element And is connected to the second inputs of the second and third elements OR, the first and second outputs of the first trigger are connected to the second inputs of the ninth and tenth elements AND, the output of the OR-HE element is connected to the third the inputs of the ninth and tenth elements And, the Reset bus, which is connected to the first input of the second trigger, the first output of which is connected to the first inputs of the fifth and sixth elements OR and to the second input of the fourth element And, the output of which it is connected to the second input of the fourth OR element, the output of the fifth OR element is connected to the second inputs of the fifth and sixth AND elements, the outputs of which are connected to the third inputs of the second and third OR elements, the second output of the second trigger is connected to the second inputs of the first, second, third, and of the seventh element And, the pulse distributor, the first, second, third and fourth outputs of which are connected to the third inputs of the first, second, third and seventh elements, respectively, the output of the sixth element OR connect is connected to the first input of the eleventh AND element, the first bus of position information of the second actuator, which is connected to the second input of the fifth OR element and is NOT connected to the second input of the eighth AND element, the second bus of information about the position of the second actuator, which is connected to the second the input of the eleventh element And, the first light eleven 1 2 position indicator The second actuator is open, characterized in that, in order to increase the information content of the device by providing a signal mechanism, the first output of which is connected to the second input of the eighth OR element, the output of which is connected to the position indicator light The second intensity process in the path of two series-connected actuators, the position sensor of the second actuator ', an analog signal converter in frequency, the node for generating signals of the intermediate position of the second IS actuator, the twelfth, thirteenth and fourteenth elements AND, the seventh, eighth, ninth, tenth and eleventh elements OR, the ban element, the bus Return, position indicator light Closed of the second actuator and the second position indicator light The second actuator is open, the first output of the first trigger is connected to the first input of the inhibit element, the output of which is connected to the first input of the second trigger, the second the information about the position of the first actuator is connected to the second input mechanism, the second bus of information about the position of the second actuator is connected to the περί 0 input of the ninth OR element and to the second input of the signal generation unit of the intermediate position of the second actuator, the second output of which is connected to the first 15. input of the twelfth AND element and with the second input of the ninth OR element, the output of which is connected to the first inputs of the thirteenth and fourteenth AND elements, the outputs to of which are connected to the first inputs of the tenth and eleventh OR elements, respectively, the outputs of which are connected respectively to the first and second position light indicators 25 of the second actuator, the output of the seventh element And is connected to the second input of the thirteenth element AND, the output of the first element And is connected to the second input of the fourteenth element AND, the output of the ban element, the position sensor of the second actuator through an analog signal to frequency converter is connected to the input p pulse distributor, the output of the short-pulse generator is connected to the first input of the seventh OR element, the output of which is connected to the second input of the second trigger, the Return bus is connected to the second input of the seventh OR element, the first bus of information about the position of the second actuator is connected to the first input of the eighth ele OR or to the first input of the intermediate position signal generation unit of the second executive pulse generator is connected to the third input of the intermediate position signal generation unit the second actuator, the third output of which is connected to the second inputs of the tenth and eleventh OR elements, the output of the eleventh element And is connected to the third inputs of the tenth and eleventh OR elements, the first bus of position information of the first actuator is connected to the second input of the sixth OR element, output which is connected to the second input of the twelfth element AND, the output of which is connected to the fourth input of the eleventh element OR. 1 - Oh 0 + ______ Uwe Fi g 2 Fig.Z