SU445026A1 - Apparatus for automatic regulation of the technological process for the continuous production of viscose solution - Google Patents

Description

The invention relates to means of autolithisation and can be used to regulate the process of continuous production of viscose rest.

Process control devices are known, comprising pressure sensors and a metering device, the outputs of which through a deviation detection unit are connected to the input of the trigger unit, and flow sensors, the outputs of which are connected respectively to the first and regulator inputs,

However, the known devices do not provide the required quality of regulation, since they do not allow to take into account and sktoshevsirovat the actual value of the transport delay time.

The purpose of the invention is to improve the quality of regulation,

This is achieved by the fact that a memory unit is installed in the device, the input of which is connected to the tert-

the trigger controller input is connected to the input of the memory unit; the output of the trigger unit is connected; in its second input is the dispenser output,

The drawing shows the block diagram of the device.

It contains pressure sensors I and 2, a deviation detection unit 3, a trigger unit 4, a memory block 5, a ratio controller 6, a sensor 7 and a flow meter, a dispenser 9.

The process of continuous production of viscose is carried out in an apparatus operating on the principle of extrusion. The productivity of the apparatus is determined by the sum of the components that are dosed into it. The productivity of the apparatus is changed by changing the alkali cellulose consumption, followed by changing the carbon disulfide and solvent alkali consumption in a given SIMOT6SH with the alkali cellulose consumption. When the alkaline cellulose setting task 9 changes, the discrete signal that translates the triggers of block 4 into a single state. The signal from the output and block 4 acts on the block 5 of memory, ensuring that the signal from the dispenser is memorized at the moment Changing him the job, and the change rate CKijf oadagiol J ju.oi niiiwijju. . alkaline cells change the density of the reaction mass and, as a result, its pressure on the walls of the apparatus, first in the feed zone of the sulfur carbon. In the charge zone, the pressure sensors installed in the feed zone of the carbon disulfide and in the feed zone of alkali, change the level of its output signal. In this case, the signal from block 3 transfers the triggers of block 4 to the initial state. In block 5, a new value of the alkali cellulose consumption signal is passed, and the ratio controller provides for a change in the consumption of a carbon knob and alkali in relation to the new consumption of alkali cellulose. Since the advance time of alkaline cellulose from the dispenser to the carbon disulfide carbon and alkali feed zones corresponds to the transport delay time, the forwarding of the memory block controlled by the signal on the change in alkali cellulose consumption and pressure signals in the carbon disulfide and alkali feed zones takes into account and scaling up the transport delay v njujsaijs xJCi / jjo.ijaiij jLjjaxiuuujjj.Mauj.u and improve the quality of regulation The subject invention. A device for automatic control of the continuous viscous solution production process, containing pressure sensors and a metering device, the outputs of which through a deviation detection unit are connected to the input of the trigger unit, flow sensors whose outputs are connected to the primary ratio and secondary inputs of the ratio controller, differently than that, in order to improve the quality of regulation, a memory unit is installed in the device, the output of which is connected to the third input of the ratio controller, to the first input the memory block is connected to the output of the trigger block, and to its second input -. dispenser outlet.