![]() The average angle of rotation for a ball is 17.61 degrees the average value of the vapor temperature after cooling is 130.91 ☌ (subject to a given value of 130.0 ☌). Data were obtained to test the efficiency of controlled shut-off fittings (V-shaped ball valve, disc rotary inter-flange valve) at a sugar factory. The results obtained experimentally confirmed the adequacy of numerical modeling regarding the study of the disk rotary inter-flange valve, as well as preliminary assumptions in the mathematical model. Measurements were performed for disc damper angles of 30°, 60°, 90° by variable value of the pressure control signal (1.4 bar) with sampling of measuring indicators for the control system in real time. ![]() ![]() Separate stages in the operation of the synthesized shut-off fittings based on accepted assumptions have been described. The operating control signal is justified with a serial asynchronous interface with an offset operating range of permissible values of –16.0 mA. The mathematical model of control over shut-off devices has been analytically described on the example of a disk rotary valve with the possibility of further analysis of individual stages in accordance with the accepted assumptions. For research, the operating modes of the disk flap and ball valve, based on proportional elements with feedback (4–20 mA), were programmatically formed and described. This paper reports the new design of an experimental bench to study the effectiveness of the positional drive control system of shut-off fittings.
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