SU1645203A1 - Arrangement for discharging petroleum products from railroad tank cars - Google Patents

Abstract

The invention relates to railway transport and can be used in devices for unloading frozen petroleum products from railway tanks. The purpose of the invention is to increase productivity. The heated fluid is pumped through an additional section 4 through the heater 1. With the help of a pipeline 2 for pumping, the heated oil product is drained through the lower drain hole. Through the nozzle 5 under pressure serves dry steam, creating pressure inside the tank. If the permissible pressure is exceeded, spool 6 is triggered, ejecting excess steam into the atmosphere, since the angle between the vertical axis and the tangent to the turns of the spiral heater is made smaller than the self-locking angle, the heated products slide along the heater surface without turbulence 2 or less.

Description

The invention relates to railway transport and can be used in devices for unloading from frozen petroleum products from railway tanks.

The purpose of the invention is improving productivity.

In FIG. 1 shows the device: on φι · Β. 2 is a section AA in FIG. 1.

The device contains a spiral heater 1, located between its coils, a pipe 2 for pumping oil products, which is installed on the lid 3 of the tank. In the lower part of the heater there is an additional section 4. made in the form of a collector. A nozzle 5 is installed on the lid 3 to create pressure in the cistern and spool 6 to maintain constant pressure. The angle between the center / vertical axis and the tangent to> points of the spiral heater 1 is made smaller than the angle of self-braking.

The device operates as follows.

They include in their work a source of energy that heats the working fluid (liquid). The liquid under the action of the pump flows through an additional section 4 through the heater 1, at the same time milking the oil product in contact with it, without direct interaction of the working fluid (liquid) with the latter. Heated oil product is started to be removed using the pipe 2 for pumping and through the lower drain hole. Dry steam (for example, antifreeze vapor) is supplied under pressure through the nozzle 5, which, by creating pressure inside the tank, accelerates the movement of heated oil from the periphery of the tank to heater 1. In addition, the antifreeze vapor tends to pass through the tank to heat the oil directly at the walls, which are cleaned up. Spool 6 is triggered by increasing pressure inside the tank, releasing excess dry steam into the atmosphere. The additional section 4 most intensively heats the oil products, which, due to the temperature difference ι, rise up and are sucked in by the pipe 2, while the less heated oil products, also rising up, slide along the surface of the spiral heater 1 without swirls, heating up faster than if petroleum products moved across the turns of heater 1.

The proposed device can significantly accelerate the heating and unloading of petroleum products in the tank, by increasing the volume of simultaneously heated petroleum product, to ensure cleaning of the tank by supplying dry steam to the tank (and not to the oil product).

Claims (1)

Claim A device for unloading petroleum products from rail tank cars, containing a spiral heater, a pipeline for pumping petroleum products between its turns, and mounted on the tank lid, characterized in that. In order to improve performance, an additional section in the form of a collector is placed at the bottom of the heater, a pipeline for pumping oil products is fixed above it, while a nozzle is mounted on the tank lid to create pressure in it and a spool to maintain constant pressure, and the angle between the vertical axis and the tangent to the turns of the spiral heater is made smaller