RU2516182C2 - Device for heating/discharge of tanks containing high-viscosity products - Google Patents

Abstract

FIELD: transport, distribution.

SUBSTANCE: invention relates to devices for heating/discharge of tanks containing high-viscosity products such as treacle etc. from storages located below the ground level, as well as from accident and emergency situation sites. Purpose of the invention is to create a device for heating and discharge of tanks containing high-viscosity products with the minimum energy consumption which is mounted and operated in the field conditions. The device for heating/discharge of tanks contains high-viscosity products, a suction/charging unit representing a pump submerged into a tank by means of moving over metal guides run down into the tank at an angle to the liquid level; a heat exchanger unit representing a pipe for feeding viscous product liquid with a "jacket" heat carrier delivery, connected to a nozzle at the pump inlet and submerged into liquid together with it to the depth of the pump intake; a pipeline representing a flexible hose for high-viscosity product transportation from the pump to the receiving container.

EFFECT: creation of the device for heating and discharge of tanks containing high-viscosity products with the minimum energy consumption which is simply mounted and operated in the field conditions.

3 cl, 1 dwg

Description

The invention relates to heating / unloading devices for tanks containing highly viscous products, such as molasses and others, from storage facilities located below ground level, as well as from places of accidents and emergencies.

It is known that the technical ability, throughput and economic efficiency of the devices depend on the properties of the unloaded products. The main obstacle to providing the necessary discharge speed is viscosity.

To increase the efficiency of the discharge process, viscous fluids are pre-treated.

A known method of unloading a viscous product from a transport tank, including liquefying the product by passing through its mass a vaporous working agent similar in chemical composition to the unloaded product (A.S. No. 1514687, class V65D 88/74, 1989).

The disadvantage of this method is the large economic costs.

Operations with highly viscous products in the cold season are associated, as a rule, with the use of various heating methods, ensuring a decrease in their viscosity.

A device is known for heating and draining viscous liquids from railway tanks, containing a suction pipe, a transfer pump and a pressure pipe with a heat exchanger connected in series, forming a recirculation line (Pat. RF No. 2103212, class 65D 88/74, 1988).

The disadvantage of this device is the high specific energy consumption, because

- to start the installation, an additional vacuum pump is used,

- a pump with a heat exchanger is mounted outside the tank.

- high height of negative suction.

Closest to the described invention is a heating / unloading device for tanks containing highly viscous products, including a suction / discharge unit for immersion inside the tank, a heat exchanger unit and a pipeline (Pat. RF No. 2110464, CL B65G 69/20, V65D 88/74, 1998).

The disadvantage of this device is the high power consumption, the complexity of the design of the device.

The objective of the invention is to provide a device for heating and unloading the tank with a minimum consumption of energy, which is simply mounted and operated in the field.

The technical result is achieved due to the fact that in the heating / unloading device for tanks containing highly viscous products, including a suction / discharge unit for immersion inside the tank, a heat exchanger unit and a pipeline, a suction / discharge unit is a pump immersed inside the tank by moving along metal guides lowered into the tank at an angle to the liquid level, the heat exchanger block is a pipe for supplying a viscous product with a “jacket” for supplying coolant I, connected to the pump inlet fitting and immersed in liquid along with it to the depth of the pump intake, the pipeline is a flexible hose that serves to transport a highly viscous product from the pump to the receiving tank.

The device uses a gear pump equipped with an electric motor.

As the heat carrier, hot gases from the combustion of liquefied gas are used.

In FIG. shows a general view of the device.

The heating / unloading device for tanks containing highly viscous products includes a tank 1, a pump 2, metal guides 9, a heat exchanger 5 with a “jacket” 6, having nozzles 7 and 8, a flexible pipe 4. In FIG. receiving capacity 3 is shown.

The heating / unloading device for tanks containing highly viscous products, operates as follows.

Metal guides 9 are lowered into the reservoir 1 with a highly viscous product (molasses) at an angle to the liquid level, then along the metal guides 9, for example, the winch lower the gear pump 2 to the depth of the pump intake. The heat exchanger 5, connected to the fitting at the inlet of the pump 2, is also lowered into the liquid (molasses) along with it to this depth. High-viscosity product by gravity enters the pipe of the heat exchanger 5, is heated there due to the coolant - hot gases from the combustion of liquefied gas entering the pipe 7 of the “shirt” 6 and leaving the pipe of a greater height 8.

In this case, the viscosity of the heated level of the product decreases and the gear pump begins to pump molasses into the tank 3 through a flexible pipe 4. The pump is equipped with an electric motor.

As the level of the selected highly viscous product decreases, the pump 2 together with the heat exchanger 5 change their location in the tank 1, moving along the metal guides 9 using a winch (not shown in Fig.).

In places of emergency situations with bottling on the relief of viscous products, it is possible to perform artificial recesses (pits) for collecting them and then further using the proposed device.

The advantages of the proposed device are that it is compact, easy to install, economical, because all thermal energy is completely absorbed by the heated product. In this case, only that part of the product that is to be unloaded from the tank is heated.

Claims (3)

1. The heating / unloading device for tanks containing highly viscous products, including a suction / discharge unit for immersion inside the tank, a heat exchanger unit and a pipe, characterized in that the suction / discharge unit is a pump immersed inside the tank by moving along metal guides, lowered into the tank at an angle to the liquid level, the heat exchanger block is a pipe for supplying a viscous product with a “jacket” for supplying a coolant connected to the fitting on During pump and immersed in the liquid with it to the pump intake depth conduit is a flexible hose, which serves for transporting highly viscous product from the pump to the receptacle. 2. The device according to claim 1, characterized in that the pump is a gear pump equipped with an electric motor. 3. The device according to claim 1, characterized in that the coolant is hot gases from the combustion of liquefied gas.

Images