SU1752673A1 - Tank for transportation of viscous liquids - Google Patents

Abstract

The invention relates to the field of unloading tanks with petroleum products in winter conditions. The tank contains a boiler located in the last unit of mixing and heating, consisting of a buffer pump with a steam drive and a screw pump with a fan, and a piping system installed in the upper part of the boiler for supplying the heated viscous liquid - oil product to the walls of the boiler tank. Simultaneous mixing and warming up of the contents allows to accelerate the unloading of the contents in winter conditions. 1 il.

Description

This invention relates to transportation to viscous petroleum products, including fuel oil, at low ambient temperatures.

Constructive implementation of the elements of the proposed tank creates conditions that during transportation allow the tank product to be prepared for discharge by the consumer, at negative ambient temperatures.

Use a combined drain by gravity, through drain holes and under pressure, by switching pumps to a drain, such as a reversing-buffer pump. And for a screw pump, a special tap (not shown) is needed.

The purpose of the invention is to intensify the process of unloading oil products from tanks and storage tanks during the cold season.

This goal is achieved by connecting heat carrier (hot pressurized air) to the group of tanks at the final run of the train, and heating the product (due to the operation of the auger pump) to a fluid state takes place over the length of the path. Pukt these tanks go under unloading first, and the process of heating the next group can be repeated.

In addition, the joint operation of two devices: auger pump driven by a turbine and a buffer pump driven by an electric motor, in a short time can prepare the next group of tanks for unloading and quickly drain.

And the quality of unloading is achieved by pouring a portion of the hot product from the stationary installation into the remainder, while simultaneously flushing the inside surfaces of the tank, due to the operation of the auger pump and the flushing line, through the gaps of which hot jets of oil product are thrown onto the walls of the boiler.

The drawing shows the device.

The device consists of a tank 1, at the bottom of which a screw-pump 2 is mounted, with a heat exchanger 3. To accelerate the discharge of the product, the tank 1 has an electric motor 4 on the rear side, which through a gearbox 5 rotates the pump 6 and the blades 7.

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The blades 7 can not only move the fuel oil, but also direct the flow to the pump receiver b when the pump is turned on to drain.

To heat the fuel oil in the boiler, the coolant is connected to the window 8. To start up the turbine operation of the auger pump 2, with the heat exchanger 3, the coolant spins the turbine, and then goes into the heat exchanger 3, which is then vented to the atmosphere.

The turbine 8 of the auger pump rotates the gearbox 5, and the gearbox transmits torque to the auger 9. A window is formed in the pump housing, through which fuel oil enters the pump 2. The heated product, rising through the pipe 10, is drained in the upper part of the tank 1.

This technique is effective in moving the composition (heating of the fuel oil in the path of the train).

After unloading the tank with a relatively cold product, pour this residue through the neck of the tank with hose 11 a portion of hot fuel oil from a stationary installation in the amount of 2-3 tons, run through line 12, with simultaneous washing of the boiler surfaces and subsequent drainage due to the work of the buffer pump.

When the tank is tilted in the direction of the buffer pump, the unloading will be of high quality without bottom residues.

Heating of fuel oil on the way takes place when the faucet of line 12 is open. In this position, the heated product from the auger pump passes the pipe 10 and drains onto the upper cooled layers above the neck of the tank and spreads along the sides, and the lower layers pass the spiral-shaped heat exchanger 3 flowing into the pump and the process is repeated, i.e. Intensive circulation occurs, which can be strengthened when draining by running a buffer pump into the work — mixing, or shutting off the tap of the flushing line 12, when the product is drained to the consumer.

The flushing line is a longitudinal pipe placed in the upper part of the boiler, with nozzle nozzles at the ends and with side slits, through which the internal surfaces of the boiler are flushed.

Claims (1)

 An invention of a tank for transporting viscous liquids, mainly fuel oil, including a boiler with loading and unloading necks, a unit inside the boiler for mixing and heating the contents, characterized in that, in order to reduce unloading time at negative ambient temperatures and reduce fire hazard, the mixing and heating unit of the contents is formed by a screw pump with a steam drive and a buffer pump with a fan located opposite to the bottom of the boiler tank and a piping system installed at the top of the boiler for supplying heated viscous liquid to the walls of the boiler. L //