SU1370080A1 - Method of controlling delivery of raw material to primary petroleum processing plant - Google Patents

Abstract

The invention relates to the field of managing oil refineries CVVM production facilities, is intended to control the supply of raw materials to primary processing plants and allows to intensify the process of topping and reduce the fluctuations in the quality indicators of the final products. The method is to regulate the flow rate of the inlet flow by means of the regulator 8 and valve 1 on the inlet line, depending on the level in the stripping column 4 measured by sensor 3, and correcting this flow rate is directly proportional to the flow of partially stripped oil measured by sensor 5, and inversely proportional to the consumption of desalted oil, measured by sensor 2, while the magnitude of the corrective action is calculated in the computing unit 7 and served as a reference to the regulator 8, which corresponds to their effect on a valve 1, ustanovlennsh line feed crude into the installation. 1 il. (L 00 Chvsticn omfffaoHtHАв «(00

Description

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1370080

The invention relates to the management of oil refining facilities and is intended to control the supply of raw materials (crude oil) to the installations of dermal processing.

The purpose of the invention is to intensify the process of topping and reduce the variability of the quality indicators of the final products.

The drawing shows a block diagram of an apparatus for implementing a method for controlling the supply of raw materials to a primary oil refining plant.

The block diagram contains a valve 1 on the raw material supply line (raw), a desalted and dry oil consumption sensor 2, a level 3 sensor in the topping column 4, a partially stripped oil consumption sensor 5, a heater furnace 6, a computing unit 7 connected by its inputs to sensors 2,3 and 5, and the output - with the regulator 8 of the flow of crude oil at the entrance to the block 9 electrohydrators.

The device works as follows.

The signals from the liquid level sensor 3 in the topping column 4, the desalinated oil consumption sensor 2 at the inlet to the column 4 and the partially stripped oil sensor 5 to the output of the column 4 going further to the heating furnace 6 go to the computing unit 7.

In the computing unit 7, the control action on the flow of crude oil is calculated in accordance with the mathematical expression:

 -t-K, (H, q-Hj- (Hja-H ,,.,) 1 L a j Method of controlling the supply of raw materials

Kj, () -K, (G 5r, G,.,) Kg (Sop-Sts ".,)," And the installation of primary processing

oil by controlling the flow

Nivani on the current and previous control cycles;

demineralization oil consumption for the current and previous control strokes;

consumption of partially stripped oil at the current and previous control stages;

coefficients pr proportionality

The control action from the computing unit 7 is supplied as a task to the controller 8, which accordingly affects the position of the regulator installed on the crude oil (raw) supply line to the installation.

With disturbances from the side, the consumption of desalted oil, for example, its increase when the saline solution is discharged, a control action is formed, aimed at reducing the flow of crude oil, i.e. to close the valve 1.

With an increase in the consumption of partially stripped oil from the column, respectively, in the computing unit 7, a control action is formed aimed at increasing the consumption of crude oil, i.e. to open valve 1.

Claims (1)

40 claims 25 thirty 35 ep And G 9P-1 G 01 and with, five TO, TO to 0 Nivani on the current and previous control cycles; the consumption of desalted oil at the current and previous control steps; consumption of partially stripped oil at the current and previous control steps; coefficients of proportionality. The control action from the computing unit 7 enters as a task to the controller 8, which accordingly affects the position of the regulator installed on the line of crude oil (raw material) supply to the installation. With disturbances from the consumption of desalted oil, for example, an increase in it when a saline solution is discharged, a control action is formed, aimed at reducing the consumption of crude oil, i.e. to close the valve 1. With an increase in the consumption of partially stripped oil from the column, respectively, a control action is formed in the computing unit 7, aimed at increasing the consumption of crude oil, i.e. to open valve 1. five 0 five 40 claims de G-, G,  }) . and H. respectively, the consumption of crude oil at the current p and the previous p-1 control cycles; set point value in the topping column; current level values Order 359/20 Random polygons pr-tie, Uzhgorod, st. Project, 4 45 50 55 input stream depending on the level in the topping column, characterized in that, in order to intensify the stripping process and reduce the variability of the quality indicators of the final products, the flow rate of the raw stream is also directly proportional to the partially stripped oil consumption and inversely proportional to the desalted oil. Circulation 464 Subscription