RU2785874C1 - Device for reducing loss from "small" breathing in a vertical steel tank - Google Patents

Abstract

FIELD: vertical steel tanks.

SUBSTANCE: invention relates to the field of vertical steel tanks and can be used to reduce losses from "small" breaths during the operation of the tank. A device for reducing losses from "small" breaths in a vertical steel tank includes an energy supply system containing solar panels interconnected by batteries and an automatic control system that regulates the temperature of the refrigerant in the circulation tubes laid in a ring pattern along the inner surface of the tank. According to the proposed technical solution, the circulation tubes are laid under the roof of the tank and along the walls of the tank along the height of the non-wetted surface; battery built into the system.

EFFECT: reduction of losses from "small" breaths due to the cooling of the temperature of the gas space; reducing energy costs through the use of alternative energy sources such as solar energy and moving fluid energy; the location of solar panels away from the tank avoids the complexity of the operation, maintenance and repair of the tank.

2 cl, 1 dwg

Description

The invention relates to the field of tank farms and can be used to cool the temperature of the gas space of the tank, reduce evaporation losses and improve the energy efficiency of the enterprise.

The closest in technical essence and the achieved result is a method for reducing the loss of oil products stored in vertical steel tanks (RU No. 2762048, B65D 88/74, 2021). A method for reducing the loss of oil products stored in vertical steel tanks, which consists in the fact that the outer surface of the vertical steel tanks is painted white, on the side surface and roof of the vertical steel tanks at an angle a, along the trajectory of the sun, from sunrise to sunset, solar panels interconnected by batteries and an automatic control system that regulates the temperature of the refrigerant laid in an annular pattern along the inner surface of the wall of the vertical steel tanks, where they lower and stabilize the temperature of the inner surface of the vertical steel tanks, as well as the oil product within the specified limits, while the level product may be above and below the top level of the ring refrigerant.

The disadvantage of this technical solution is that it is proposed to cool the entire volume of the product in the tank, which entails high capital costs for re-equipment of the tank and high metal consumption of the structure. Also, the disadvantage is the presence of one alternative energy source, which may not be enough to implement the proposed solution. Due to the lack of thermal insulation of the tank walls, the proposed technical solution will have low efficiency. The location of solar panels directly on the roof and walls of the tank complicates its operation, maintenance and repair.

When implementing the invention, the solution of the following technical problems is provided: reduction of losses from "small" breaths due to cooling the temperature of the gas space; reducing energy costs through the use of alternative energy sources such as solar energy and moving fluid energy; the location of solar panels away from the tank avoids the complexity of the operation, maintenance and repair of the tank.

The specified technical result is achieved by the fact that a device for reducing losses from "small" breaths in a vertical steel tank, including an energy supply system containing solar panels interconnected by batteries and an automatic control system that regulates the temperature of the refrigerant in the circulation tubes laid in an annular pattern along the inner surface of the tank. According to the proposed technical solution, the circulation tubes are laid under the roof and along the walls of the tank along the height of the non-wetted surface, an electric generator driven by an impeller installed on the bypass pipeline is additionally installed in the power supply system, the power supply control unit is built into the automatic control system, which allows you to regulate the operation of the rotary solar battery built into the power supply system. In addition, the roof surface of the tank is insulated with heat-insulating material.

The drawing shows a diagram of the proposed system to reduce losses from "small" breaths in a vertical steel tank, where:

1 - Circulation tubes;

2 - Pump for refrigerant pumping;

3 - Refrigerator;

4 - Refrigerant storage tank;

5 - Automated control system;

6 - Rotary solar panels;

7 - Battery;

8 - Power supply control unit;

9 - Electrical cable;

10 - Electric generator;

11 - Bypass pipeline;

12 - Impeller;

13 - Reservoir.

The proposed installation works as follows. The drive of the circulation pump is made in the form of a screw pair. These drives (actuators) can operate on voltage of 12, 24 V, which allows the use of alternative power sources, such as solar (light) batteries, the energy of a moving liquid or gas.

The power supply system includes a battery 7, to which a rotary solar (light) battery 6, an electric cable 9, an electric generator 10 driven by an impeller 12 are connected, and a power supply control unit 8 is built into the automated control system 5. The battery 7 accumulates electricity from power sources and provides power supply to operate the refrigerator and refrigerant pump. The presence of the battery 7 and alternative power sources, such as a rotary solar (light) battery 6, electric generator 10, ensures reliable uninterrupted operation of the installation and makes it energy-saving and non-volatile.

The automated control system 5 controls and regulates the refrigerant supply, the refrigerant temperature, and also contains a power supply control unit 8, which allows you to control the operation of the rotary solar (light) battery 6, electric generator 10 and external power supply. Moreover, the power sources can operate both separately and together, depending on the operating conditions of the dosing unit.

The drive of the electric generator 10 is the impeller 12, installed inside the bypass pipeline 11 on the bypass line, which is driven by the flow of the pumped liquid. The electric generator 10 is installed on the bypass pipeline 11.

The automated control system 5, in addition to monitoring and regulating the operation of the installation, receives, stores and transmits information via a USB flash card, GSM modem or other wireless data transmission systems.

Tank 4 is designed to store the refrigerant. It enters the refrigerator 3, where it is at a given temperature.

The automated control system 5 determines the temperature of the gas space of the tank 13. When a certain temperature is reached, the pump 2 turns on and the refrigerant begins to circulate through the pipes 1 laid under the roof of the tank and along the walls of the tank along the height of the non-wetted surface, cooling the gas space to the required values. After that, pump 2 is switched off.

To reduce heat exchange between the environment and the gas space of the tank, the roof must be insulated with heat-insulating material.

Thus, the proposed scheme for reducing losses from "small" breaths in vertical steel tanks is energy-saving, in view of the use of alternative energy sources and easy to operate, in view of the absence of significant changes in the design of the tank. The simplicity of the proposed scheme will ensure reliable operation and operation.

Claims (2)

1. A device for reducing losses from “small” breaths in a vertical steel tank, including an energy supply system containing solar panels interconnected by batteries and an automatic control system that regulates the temperature of the refrigerant in the circulation tubes laid in an annular pattern along the inner surface of the tank, characterized in that the circulation tubes are laid under the roof of the tank and along the walls of the tank along the height of the non-wetted surface, an electric generator driven by an impeller installed on the bypass pipeline is additionally installed in the power supply system, the power supply control unit is built into the automatic control system that allows you to regulate the operation of the rotary solar batteries built into the power supply system. 2. A device for reducing losses from "small" breaths in a vertical steel tank according to claim 1, characterized in that the roof surface of the tank is insulated with heat-insulating material.

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