SU1322043A1 - Method of drying pipeline - Google Patents

Abstract

Invention m. used in petroleum and chemical industry. It allows you to increase the economy and reduce the drying time. At the junctions of the adjacent sections of the dried pipeline (TP) 1, pumping means (CO) 3 are installed. Each of the CO 3 is connected by connecting TP 4 with locking bodies 5,6 to the adjacent sections. TP 1. The CO 3 steam-air mixture is turned on when the shut-off valve organs 6, and the process of evacuating sections of TP 1 continues until the pressure of the vapor-air mixture at the pumping point reaches the pressure value corresponding to the triple point. After that, the locking bodies 6 are closed, and the locking bodies 5 are opened. In this case, the pumping direction is reversed. Pumping is carried out before reaching in place of pumping pressure corresponding to the pressure of the triple point. After that, the pumping direction is reversed again. Such periodic switchings are carried out before complete drying of the TP 1. I il. with S (L tx SB to to about with

Description

The invention relates to a method for drying articles and can be used in the oil and chemical industries.

The aim of the invention is to increase the economy and reduce drying time.

The drawing shows a device for carrying out a method of drying a pipeline;

The dried pipeline I consists of separate sections, separated by sealed valves 2. At the joints of adjacent sections are installed

means 3 pumping. Each of the pumping means is connected by a connecting pipe 4. with shut-off bodies 5 and 6 to the adjacent sections of the pipeline.

The method of drying the pipeline is carried out as follows.

Means 3 for pumping the vapor-air mixture are turned on when the shut-off organs 6 are open and the process of vacuuming the pipeline sections is continued until the pressure of the air-vapor mixture is at the pumping point.

Compiled by G. Nabatov Editor G. Gerber Tehred M. Morgental Proofreader L. Beskid;

Order 2747/33 Circulation 636 Subscription

VNSHSHI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

. Production and printing company, Uzhgorod, Projecto st., 422043

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reaches the pressure corresponding to the triple point. After that, the locking bodies 6 are closed, and the locking bodies 5 are opened. In this case, the pumping direction is reversed. Pumping is also performed before reaching the pressure at the pumping point corresponding to the triple point pressure. After that, the pumping direction is reversed. Such periodic switchings are made until the pipeline is completely dried.

Claims (1)

Invention Formula The method of drying the pipeline by sealing it and then pumping to a pressure corresponding to a triple point, which is such that, in order to reduce energy consumption and shorten the drying time, pumping is performed alternately from opposite ends of the pipeline, and the direction of pumping is reversed when reaching a pressure corresponding to a triple point.