SU1140096A1 - Device for controlling electrode cleaning process - Google Patents

Abstract

A DEVICE FOR CONTROLLING THE ELECTRODE CLEANING PROCESS, containing an alternating voltage source, defining a register connected by an output to the first input of the comparison unit, the output of which is connected to the first input of the first trigger and to the first input of the setting register, the first and second valves of the outputs are connected to the inputs of the actuator, the first element And through the key is connected to the third input of the actuating unit, as well as the third element AND and the serially connected clock generator, the second element And and the first with etchik pulses, and third elenent And, the first input of which is connected to the output of comparison block, and the second vhods first input device, the second input of which is coupled to a second vhoi3 13.:. c -. . . G -, ..-.--- :. the house of the first trigger, the third inlet with the first inlet of the first valve, and the fourth inlet - in the first inlet of the second valve, characterized in that, in order to improve the accuracy and reliability of the device, the second and third triggers are introduced, the delay element, the number of cycles counter , the cleaning operation duration counter and the fourth element And, the first input of which is connected to the output of the third element And, the second input to the output of the second trigger, and the output through the third counter of the duration of the cleaning operation - to the first input of the second trigger, the second output with the output of the first pulse counter, the output of the second trig. Gera is connected to the first input of the first valve and through the inverter to the first input of the second element I, the second input of which is connected to the fifth input of the device, the output of the first pulse counter through the delay element is connected to the second input of the comparison unit, and through the counter the number of cycles - with the third input of the unit compared to 0, the output of the third element And under (connected to the first input of the third trigger connected by the output to the second input of the second valve, and the second input - to the sixth input of the device, the greasy entrance of which is connected to the second th entry of the master register.

Description

The invention relates to automation and computing, in particular, to devices for controlling the electrode cleaning process. The known device contains a synchronization unit connected to the logical switching unit by the valve of the actuating unit and the JJJ time stamp sensor. However, this device is characterized by low accuracy due to the lack of discretization of control procedures for the input of various components for cleaning electrodes. Closest to the present invention is a device comprising an actuating unit connected to valves and a key, the outputs of which are connected to sensors of the respective components, a time pulse counter connected through the first element I to the pulse generator and to the first trigger, a comparison unit connected to case, the second and third And elements and the logical node 2j. A disadvantage of the known devices is the low accuracy and reliability of the device. The purpose of the invention is to improve the accuracy and reliability of the device. The goal is achieved by the fact that the device for controlling the electrode cleaning process, containing an alternating voltage source, sets the register connected to the first input of the comparator unit, the output of which is connected to the first input of the first trigger and the first input of the setting register first and second valves are connected to the outputs of the executive unit, the first element I is connected via a key to the third input of the actuating unit, as well as the third element I and the series-connected clock generator and pulses, the second element AND and the first pulse counter, as well as the third element AND the first input of which is connected to the output of the comparison unit, and the second input to the first input of the device, the second input of which is connected to the second input of the pair trigger, the third input the first inlet of the first valve, and the first inlet - on the first INPUT of the valve, introduced the second and third triggers, the delay element, the cycle number counter, the cleaning operation time counter and the fourth And element, the first input of which is connected to the output of the third And element, the second input - to the output of the second trigger, and the output through the third counter of the duration of the cleaning operation to the first input of the second trigger connected by the second input to the output of the first pulse counter, the output of the second trigger connected to the first input of the first valve and the second input which is connected to the fifth input of the device, the output of the first pulse counter is connected to the third input of the comparator through the delay element, and through the counter of the number of cycles to the third input of the comparator, the output of the third And ementa podk.pyuchen to the first input of the third flip-flop connected to the output to a second input of the second valve and the second input - to a sixth input of the device, the seventh input of which is connected to the second input of the master register. FIG. 1 shows a block diagram. device ma; in fig. 2 is an example of a specific structural embodiment of an executive unit. The device includes a generator of 1 time pulses, the first 2, second 3, third 4 and fourth 5 elements And, the first 6, second 7 and third 8 triggers, key 9, alternating voltage source 10, first counter t pulses 11, cycle counter 12 and the counter 13 of the duration of the cleaning operation, the comparison unit 14, the delay element 15, the master register 16, the first 17 and second 18 valves, the inverter 19, the actuator 20, to which compressed air is supplied, diluting the cleaning solution or water. The block 20 (Fig. 2) is made in the form of a head consisting of a housing 21, a cover 22 with openings in which sensitive parts of the measuring 23 are included, and comparative 24 electrodes. Electrode housings 25 and 26 are fastened to housing 21 by means of sleeves 27-30, nuts 31 and 32, glands 33 and 34, and nuts 35 and 36, entry 37-43 (Fig. 1). 3 The device works as follows. When the device is switched on, a signal arrives at the device input 43, which sets the trigger 6 into an e fi nite, which is opened by element 2, and through it 1 1 1 time pulses start to flow from the generator 1, the device’s task is so that at certain time intervals (when measuring the pH of the insulin extract every 10 minutes) briefly (up to 30 seconds) to provide compressed air to the body 21 of the unit 20. Compressed air at high speed flows around the sensitive parts of the electrodes This profile has holes in the lid 22. To this end, as soon as the time pulse counter counts a predetermined time, for example 10 minutes, the transfer pulse from the output eio goes both to delay element 15 and to cycle counter 12, and to single trigger input 7, it in a single state. The trigger 7 opens the element 5I and to the generator 1 through the elements 2 and 5 and the counter 13 is connected, which counts the cleaning time of the electrodes. At the same time, with a high trigger trigger 7, valve 17 opens and compressed air is supplied from inlet 38 through it to unit 20. As soon as the electrode cleaning time expires, which will be detected by a transfer pulse from the output of counter 13 to the zero input of trigger 7, the latter returns to its initial state, turns off counter 13 from generator 1 and closes valve 17, stopping the supply of compressed air. Register 16, comparison unit 13 and counter 12 cycles of the technological process provide the specified number of cleaning cycles. To do this, before the start of operation, register 16 records the specified number of cycles from output 37. During operation of cycle counters 12, the number of transfer pulses from the output of counter 11 is counted. For each of these pulses, delayed by element 15, the transient time in counter 12, block 1 96 compares the number of current cycles with the given one. As soon as block 14 detects the equality of the codes of the master register, 16 and cycle counter 12, it returns the impulse of completion of the work, which arrives at the zero input of the trigger 6, returning it to its initial state, to the setup input of the register 16 and to the input of the 4th element. element 4 And due to the need after the end of the technological cycle of supplying the washing solution to the electric; d. If there is such a need, then the permitting potential is output from the input 41 to the other input of element 4 I. A pulse from the output of the element 4A triggers the trigger 8, the opening valve 18 and the cleaning solution is fed to the block 20 from the inlet 39. Upon termination of the supply of the cleaning solution from the inlet 42, the trigger 8 returns to the initial state and the valve 18 closes. In the process of measuring the pH, a pulsating voltage should be applied to the cleaning head for the flow of the sensitive part of the electrodes around the controlled medium. For this purpose, element 3A supplies potential from trigger 7 through inverter 19. Since trigger 7 is always in the zero state of scientific research institutes, except cleaning periods, inverter 19 inverts low potential of trigger 7 and outputs a high potential to element 3 I, to another input which at input 40 is given a resolution signal. If there are two high potentials of the element 3, the valve 9 is opened and a pulsating voltage is applied to the input of the unit 20 through it. From the installation in the meters 11 and 13 of the specified time codes, in the counter 12, the specified number of cycles and start-up from the input 43, the operation of the device is repeated. The introduction of new components and elements has significantly improved the accuracy of the operation of the device. The base unit is an N-meter PM-C2 with a peel surmide electrode. Compared to the baseline, the accuracy of measurement is increased by 10 to 5-6%, and also the reliability of the device increases, due to which the loss of materials and raw materials is reduced and 15-20% during the manufacture of insulin.

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Claims (1)

'' DEVICE FOR CONTROLLING THE PROCESS OF ELECTRODE CLEANING, containing an alternating voltage source, a specifying register connected by an output to the first input of the comparison unit, the output of which is connected to the first input of the first trigger and to the first input of the specifying register, the first and second valves with outputs connected to the inputs of the executive unit, the first element And is connected via a key to the third input of the executive unit, as well as the third element And and the clock generator connected in series, the second— · · second element And, and the first count a pulse sensor, as well as a third element And, the first input of which is connected to the output of the comparison unit, and the second input is the first input of the device, the second input of which is connected to the second input of the first trigger, the third input with the first input of the first valve, and the fourth input with the first the second valve input, characterized in that, in order to increase the accuracy and reliability of the device, the second and third triggers, a delay element, a counter of the number of cycles, a counter for the duration of the cleaning operation and a fourth element And, the first input of which I connect is connected to the output of the third element And, _(the second input to the output of the second trigger, and the output through the third counter of the duration of the cleaning operation to the first input of the second trigger connected by the second output to the output of the first pulse counter, the output of the second trigger is connected to the first input of the first valve and through inverter - with the first input of the second AND element, the second: whose input is connected to the fifth input of the device, the output of the first pulse counter through the delay element is connected to the second input of the unit 4140096 comparison point, and through the counter of the number of cycles with the third input of the comparison unit, the output of the third AND element is connected to the first input of the third trigger connected by the output to the second input of the second valve, and the second input to the sixth input of the device, the seventh input of which is connected to the second the input of the master register.