SU625189A1 - System for monitoring polymer solution loss - Google Patents

Description

(54) SOLUTION LOSS CONTROL SYSTEM

POLYMER

This invention relates to the field of automatic process contrap.

A known system is to counter the loss of a popimer solution, containing a sampler of the consumption of a popimer solution, associated with a computing device, which is associated with a recording device IJ.

However, the low accuracy of controp does not accurately establish the reasons for the decrease in the overall production capacity of the workshop and timely eliminate the loss of the polymer solution of the finished product.

The aim of the invention is to improve the accuracy of controp.

This is achieved by the fact that the system has sensors for the consumption of the finished product, sensors for the parameters of the solution of the popimer and the finished product, parameters for the target, comparison elements and a logic element, with the output of the sensors for the parameters of the polymer solution and the sensors for the finished product installed on each unit division blocks whose outputs are connected to the inputs of logical

element, and its output is connected to a recording device. One of the inputs of the logic element is connected to the output of the comparison element, the inputs of which are connected to the output of the computational device; Ba and the output of the flow sensor of the popimer solution.

In the drawing, a structural diagram of the system is given, where 1 is a polymeric material forming unit; 2 - polymer supply pipe to units 1; 3 - line not-. ready-made radiation 4 - polymer flow sensor on the aggregate; 5 - polymer flow meter; 6 - 8 - sensors parameters of the polymer solution; 9 - flow sensor of the finished product; Yu - division blocks; And - the sensor parameter of the polymer; 12 - computing device; 13 is the element of comparison; 14 logical block; 15 - indicator.

The system works as follows.

Claims (1)

Using the finished product flow rate sensors 9, the finished product output is measured at each i-th unit (MJ). The signals from the sensors 9 are fed to the input of the computational device 12 and to the entrances of the signals of the 1O. The output device 12 receives the output signals of parameters 6–9 and 11 (containing alkalis, powders, and cellulose in the polymer solution, the moisture content of the finished product, and the consumption of the finished product). The computing device 12 implements the algorithm of 1 of the calculated value of the flow rate of the J4K meter (–a-K {.) M7 - the calculated value of the polymer flow rate for all units; - humidity is safe; oL H, ft is the content of cellulose in a polymer thief ;: alkalies in water in a pslix; DL - the output of the finished product on 1 unit. The signal from the computing device 12 is fed to the input of comparison 13, to the other input of which is connected the output of the sensor 5 oftnero of the actual flow of the polymer solution to all units 1. Using the sensors 4, the flow rate of the polymer solution to each unit 1 is measured by blocks of U computed; is the ratio L M (L in J.% 1 where: is the specific output of the product; q4 is the actual consumption of the polymer per unit 1. Output signals of the comparison element 13 and the dividing blocks 1O are fed to the input of the logic unit 14. When the polymer solution is lost , for example, from 1USHE for other reasons, the amount of actual polymer flow and all aggregates will exceed its calculated value and aperture 13 Bbt aast signal to logic unit 44. The comparison element algorithm is written as output from the control signal element 13 of control signal 13 and compares specific polymer consumption () with its specified value (1) for each .1 unit. If the specific consumption of its specified value is exceeded on one or several aggregates, the logic unit 14 will be output to s score: indicator 15 indicating that these units there are losses of the polymer solution. The operation algorithm of unit 14 and the incicator 15 is written as: with Pg O, 9 there is no loss of polymer; the control signal from the 13 РВ "/," с block can be equal to Р-гОи Рцг, in this case there are losses of the polymer on the 1st unit. The system can be implemented on commercially available sensors and instruments, the numeral and logical blocks can be executed on the USEPP elements. Formula of the invention. Solution loss control system, containing the polymer expansion flow sensors associated with the computer: a device that is associated with registering with the aim of increasing the accuracy of control, it has sensors for the consumption of the finished product, sensors for the parameters of the polymer solution and the finished product, dividing units, elements for comparison element and logic element, with the output of the sensors for the parameters of the primitive solution and the flow sensors of the finished product installed on each unit connected to the inputs of the division side, the outputs of which are connected to the inputs of the logic element, and its output is connected to the recording device One of the inputs of the logic element is connected to the output of the comparison element, the inputs of which are connected to the output of the computing device and the output of the flow sensor of the full measure. Sources of information taken into account during acpertise: 1. USSR author's certificate M 489О9О, кп. Q O8 b 7 / On, 1975.