System for regulating the porosity sumagaysay isolation of groups of wires
(57) Abstract:The invention relates to automation and can be used when adjusting the porosity of the insulation of the wires. The purpose of the invention is to improve the accuracy of regulation. For this system to control the porosity sumagaysay isolation of the group of wires contains the number of wiring channels regulate the flow of water from the serially connected flow regulator 8, the actuator 9, the gear 10, the actuator 11 and the sensor 12 of the flow through which is provided the initial moisture content of the insulation of the wires. In the furnace 1 there has been a rapid evaporation of moisture from the insulation of the wires which are stretched pulling mechanism 2. With the help of the sensor 4 speed and a nonlinear element 5 and the sensor 6 number of wires and the block 7 to calculate the porosity signals are formed feedbacks. 1 C.p. f-crystals, 9 Il. The invention relates to automation and can be applied when regulating the porosity of the insulation of the wires.The aim of the invention is to improve the accuracy of controlling the porosity of the wires.In Fig. 1 shows a block diagram of a system for regulating the porosity of the insulation of the group of wires; Fig. 2 functional diagram of the flow regulator of the water; in Fig. 5 is a functional diagram of a nonlinear element; Fig. 6, 7, 8 and 9 are graphs of dependencies weight of water temperature, weight of paper, all paper from the velocity and concentration and flow rate.The system includes a furnace 1 for drying insulation pulling mechanism 2, the controller 3 porosity, the sensor 4 speed pull wires, the nonlinear element 5, a sensor 6 number of wires, block 7 calculation of porosity, in each channel, the controller 8 of the water flow, the actuator 9, the gear 10, the actuator 11, the flow sensor 12 and the temperature sensor, air flow sensor mass air sensor to the concentration of mass, the water flow and the speed sensor wires (not shown).Unit 7 calculate the porosity contains multipliers 13-19, dividers 20, 21 and the adders 22, 23.The actuator 9 includes a reversing relay 24, the motor 25 DC current, resistor 26 job, the adder 27, the modulator 28, an amplifier 29 DC amplifier 30 voltage, the amplifier 31 of the power capacitor motor 32, gear 33, a resistor 34 feedback.The controller 8 water flow contains the node 35 summation, for example, resistors, node 36 limitations of the input signal, for example, diodes, operational amplifier 37, the chain 38 feedback, NSEL 40 limitations of the output signal across the resistor, and an emitter follower transistor 41 and the resistor.Nonlinear element 5 contains the input line circuit across the resistor 42, the nonlinear circuit resistors 43, 44, 45 and diode 46, 47, 48, chain, initial bias resistor 49, the feedback circuit across the resistor 50 and the operational amplifier 51.Furnace 1 for drying insulation is designed for rapid evaporation of moisture from the insulation of the wires which are stretched pulling mechanism 2. The furnace has a higher temperature regulation porosity than when regulating humidity insulation. In front of the furnace on these wires sprayed water on each wire individually. In the furnace 1 under the action of high temperature rapid evaporation of water, which in fact is replaced by air, which leads to the rapid formation of pores in the insulation of the wires. Wires with desired porosity outputs are served to the pull mechanism 2. This mechanism together with the feed mechanism (not shown) extends through the furnace 1 wire and then supplies them to a winding device with a given speed of movement.Actuators 11, water is supplied to the moving wire sumagaysay insulation. They represent a pipe with nozzle - dividers of water, in which is mounted the valve. Under raseev the odes mounted sensors 12 water consumption. The gears 10 are designed to align with the frequency of rotation of the motor in the actuator 9 and valve mechanisms 11. These actuators are designed for opening the valves in the automatic mode according to the first inputs of and in manual mode (by the second input is the initial setting). In Fig. 3 shows a functional diagram of such actuators that when working in manual mode are reversing relay 24 with two entrances, through which the buttons "more-less" activate the relay and voltage is applied to the motor 25 DC. This servomotor rotates the resistor 26 primary job, the signal from which the second input to the adder 27, has two variable resistors, one of which is powered by the first input from the flow regulator, and the other from the feedback resistor. The signals are summed and then the signal amount is modulated in the modulator 28, amplified by current amplifier 29, and then is amplified voltage and power amplifiers 30 and 31 and is supplied to the control winding of a two-phase induction motor 32. The output of the motor is the output of the drive. For testing disturbance torque, angle job on the shaft of the motor through the reduction gear 33 is installed S="ptx2">Regulators 8 water consumption of simulating disturbance of water flow (first entry), the speed of movement of the wires (second entrance) and porosity (third input). In these controllers, the signals are received with the following signs: from flow sensors with the sign " - " from the nonlinear element 5 with the sign "-", from the controller 3 with the sign "+" specifies how the signal. Flow regulators perform PI control law.System for regulating the porosity is as follows.Through the preheated oven 1 stretch the wire pulling mechanism 2. Before using the reversing relay 24 in each channel set the starting job actuators, with which through actuators 11 water on the wires 1.1-1.n. When this knob 3 porosity issues on the third inputs of the regulators 8 water flow required reference signals on the porosity of the insulation of the wires. The first inputs of the regulator receives feedback signals from sensors 12 water flow through which is the development of disturbances of water flow. With the help of the block 7 to calculate the porosity of the insulation measured average porosity of the insulation of each wire, and the signal measurement is the realisation of porosity for different disturbing factors: fluctuations in the temperature of the furnace 1, concentration and mass flow, the number of wires and water consumption. The development of instability of the opening angle of the valves in the actuator 11 is electrically 9, made in the form of systems of automatic regulation of the angle. Outrage at the number of wires in the furnace 1 for drying the insulation being tested using the sensor 6 number of wires. When the change speed pull wires, for example, the operator changes the signal unit 7 through the sensor 4 speed pull wires. However, to improve the performance of the system signal to change the speed sensor 4 through the nonlinear element 5 directly affects the second inputs of the regulators 8 water flow in each channel regulation. Thus tracking of water consumption, the rate of movement of the wires.The build system to control the porosity sumagaysay isolation of the group of wires increases its accuracy and performance. 1. SYSTEM FOR REGULATING the POROSITY SUMAGAYSAY ISOLATION of the GROUP of WIRES containing a furnace for drying the insulation associated with the pulling mechanism, characterized in that, to improve the control accuracy, it is entered on gulator flow, motor, gearbox, actuator and a flow sensor connected to the first input of the flow regulator of its channel connected in series speed sensor pulling wires and the non-linear element is connected by the output to the second inputs of the flow regulator for each channel, connected in series sensor number of wires, the computing unit porosity associated second - sixth inputs to the outputs of the sensors, respectively, temperature, flow, mass, concentration, flow rate and speed of pulling of wires, and the control of porosity, connected to a second input with the output of the generator is the porosity, and the output from the third input flow controls on each channel.2. The system under item 1, characterized in that the computing unit porosity includes serially connected first, second and third multipliers, first and second dividers connected in series to the fourth and fifth multipliers and the first adder connected to the output of the second input of the first divider, and connected in series to the sixth multiplier, the second adder and the seventh multiplier connected to the output of the second input of the first adder and a second input with the input of the second multiplier connected to the first and second inputs of the first multiplier, the first and second inputs of the fourth multiplier are respectively the first, the sixth input unit and the output of the second divider output unit.
FIELD: means of automation of production processes, applicable for metering of floatation reagents at concentrating mills at concentration of non-ferrous metal ores.
SUBSTANCE: the device has N channels of metering, each provided with an electromagnetic weigher and an amplifier, discrete signal input/output unit connected to a microprocessor device having a program providing formation of control signals shifted in time, connected to the respective inputs of each weigher channel. The device has two series-connected power sources, a current transmitter is connected at the output of one of them, it is connected to each metering channel, and the common potential of the power sources is connected to each metering channel. Each metering channel has a square signal shaper, two keys, maximum signal detector on semiconductor diodes, as well as a forcing signal transmitter and a reagent flow sensor. Since the forcing signal actuates in succession the weighers of the electromagnets in the metering channels, the presence of the forcing current in the current transmitter makes it possible to monitor the serviceability of the line of communication with the weigher by means of the input\output unit, and the forcing voltage transmitter in each channel makes it possible to selectively connect the outputs of the reagent flow sensors to the input\output unit and thus to monitor the weigher serviceability, and the program of the microprocessor device produces a base of data of functional failures of the metering channels, and takes stock of reagents of each channel with the use of the information of the data bases of failures of the metering channels.
EFFECT: enhanced accuracy of metering.
FIELD: instrument making.
SUBSTANCE: main and auxiliary materials are added at speeds of transition process flows or stabilised condition depending on value of control signal. Actual speeds of flows monitor command speeds of flow. Device provides for dynamic control over instant and integral error for specified range of control.
EFFECT: expansion of functional capabilities.
16 cl, 10 dwg
SUBSTANCE: method comprises the following steps: (a) feeding a stream containing carbon and an oxygen-containing stream into a reactor in given ratio O/C, (b) at least partial oxidation of the stream containing carbon in a gasification reactor to form a gaseous stream of a product containing at least synthetic gas, CO2 and CH4, (c) determining content of CO2 in the stream of product obtained at step (b), (d) comparing content of CO2 determined at step (c) with predetermined content of CO2 as a result of which the value of the difference between content determined at step (c) and the predetermined content can be obtained, (e) controlling the ratio O/C at step (a) based on the difference value obtained at step (d), where 'O' denotes mass flow of molecular oxygen O2, which is present in the oxygen-containing stream, and 'C' denotes mass flow of material containing carbon, except any optional carrier gas or water.
EFFECT: high accuracy of controlling quality of the product.
9 cl, 1 dwg, 1 tbl
SUBSTANCE: method uses a biased mass flow imbalance value obtained by comparing the sum of incoming mass flow measurement values with the sum of outgoing mass flow measurement values and adding a bias component to obtain the biased mass flow imbalance value. The flow of at least one of the incoming and outgoing streams (12, 14, 16, 18) is adjusted to move the biased mass flow imbalance value towards zero. In addition, pressure measurement (PC) is carried out in the connection and the obtained data are used to adjust the bias component in response to a change in the pressure measurement (PC) relative to a pressure set point (PSP), to reduce the change in said pressure measurement (PC) relative to the pressure set point (PSP).
EFFECT: high accuracy of control.
16 cl, 3 dwg
FIELD: machine building.
SUBSTANCE: device comprises two transferred components (k1, k2) with two accumulation vessels (1a, 1b) for every component (k1, k2), two flow control circuits (2a, 2b) for accumulation vessels (1a, 1b); one first pipeline (9a) wherein fed are fluid components (P); second pipeline (9b) for feed of carbon dioxide gas, and mixer (1c) for drinks to be dispensed. Note here that first pipeline (9a) feeds fluid (P) mixed with carbon dioxide into mixer (1c). Note also that accumulation vessels (1a, 1b) and mixer (1c) are composed of pressure vessel and intercommunicated by, at least, one pipeline (1) to equalise pressure between accumulation vessels (1a, 1b) and mixer (1c).
EFFECT: stable control of proportioning and dispensing.
18 cl, 1 dwg
FIELD: process engineering.
SUBSTANCE: set of inventions relates to control over batching and mixing system. System comprises first pump to feed first component to mixer and second pump to feed second component to mixer. Piston stroke of every pump can be reversed from direction of suction and displacement to component displacement direction and visa versa. Motion detector connected with controller is connected with every pump. Said controller is programmed to initiation of pump stroke direction reversing after determination of that component volume that stays in the pump insufficient for setting of preset metered ratio. Said controller is programmed to continuous feed of first component to the mixer and intermittent feed of second component to the mixer to conduct cycles of batched feed of second component to the mixer.
EFFECT: improved batching and mixing performances, higher homogeneity of the mix.
9 cl, 4 dwg
SUBSTANCE: gas odorising system comprises a main 1 and a control 2 container with an odorant, a feeding device 3, a control unit 8 connected to a power supply 10, said control unit being connected to a flow meter 6 of a main gas pipeline 13. According to the solution, the feeding device is a working chamber 14 in which there are at least three high-voltage electrodes 15, 16, 19 with controlled spacing, one of which 19 is earthed and the others are connected to the control unit, an inlet valve 11 connected to the main container, an outlet valve 12 connected to the main gas pipeline. The odorising system also includes, connected to the control unit, a pressure sensor 4 inside the working chamber and a pressure sensor in the main gas pipeline before the flow meter in the gas flow direction.
EFFECT: faster dosage adjustment and therefore accuracy of maintaining concentration of odorant in natural gas while reducing odorant consumption and improving safety.
5 cl, 3 dwg