Energy-saving deep oil tank heating system

Abstract

The utility model provides a large energy-saving deep oil tank heating system which comprises a fuel oil deep tank, a fuel oil daily tank and a first pipeline arranged between the fuel oil deep tank and the fuel oil daily tank, a fuel oil heater and a fuel oil heating pump are arranged on the first pipeline, and the fuel oil heater is connected with a steam supply pipeline and a condensate water discharge pipeline. The deep tank fuel oil heating device can solve the problems that deep tank fuel oil heating efficiency is low, heating time is long, and the number of heating coil pipes is large, through the mode that high-temperature fuel oil and low-temperature fuel oil are mixed, the heating efficiency in a deep tank is improved, the heating time is shortened, energy consumption is reduced, and meanwhile heat recovery can be achieved.

Description

Technical Field

[0001] This utility model belongs to the field of ship design technology, specifically relating to an energy-saving deep oil tank heating system. Background Technology

[0002] In conventional ship designs, fuel heating in deep fuel tanks primarily utilizes steam generated by boilers. This steam is then used to heat the fuel throughout the tank via numerous heating coils, ensuring that the fuel's temperature and viscosity meet the requirements of the fuel pumps. This guarantees the normal operation of the fuel pumps and facilitates the transfer of fuel throughout the ship.

[0003] To heat the fuel in the entire compartment, a large number of heating coils and supports need to be installed, increasing the design complexity and the ship's weight.

[0004] Because of the large volume of the deep fuel tank, the temperature rise of the entire compartment is slow, and the large heat dissipation area of ​​the compartment causes a lot of heat to escape into the seawater through the structure, requiring additional steam heating to offset the heat loss.

[0005] The high heat transfer coefficient of steam leads to rapid heat decay, resulting in uneven temperatures across different layers of the fuel tank, which is detrimental to fuel transfer. Utility Model Content

[0006] To address the technical problems in the prior art, this utility model provides an energy-saving deep oil tank heating system, including a deep fuel tank, a fuel day tank, and a first pipeline located between the deep fuel tank and the fuel day tank. The first pipeline is equipped with a fuel heater and a fuel heating pump, and the fuel heater is connected to a steam supply pipeline and a condensate discharge pipeline.

[0007] Furthermore, the fuel tank is equipped with a compartment, and the connection between the first pipeline and the fuel tank is located within the compartment.

[0008] Furthermore, the first pipeline is equipped with a suction port and a heating coil at the end of the fuel tank.

[0009] Furthermore, one end of the heating coil is connected to a steam supply pipeline, and the other end is connected to a condensate drain pipeline.

[0010] Furthermore, the fuel daily use compartment is also connected to a fuel sedimentation tank, which is connected to the first pipeline via a second pipeline, and a fuel delivery pump is installed on the second pipeline.

[0011] Furthermore, a temperature sensor and a pressure sensor are provided on the first pipeline, and the temperature sensor, the pressure sensor, the fuel heating pump, and the fuel delivery pump are electrically connected to a fuel heating controller.

[0012] Furthermore, the fuel sedimentation tank and the first pipeline are also provided with a return pipeline.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention can solve the problems of low heating efficiency, long heating time, and multiple heating coils in deep cabins. By using a mixture of high-temperature and low-temperature fuel, it increases the heating efficiency in deep cabins, shortens the heating time, reduces energy consumption, and also enables heat recovery. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] Reference Figure 1 This application proposes an energy-saving deep oil tank heating system, which consists of a fuel transfer pump, a fuel heater, a control box, and a fuel heater.

[0018] This utility model provides an energy-saving deep fuel tank heating system, including a deep fuel tank, a fuel day tank, and a first pipeline located between the deep fuel tank and the fuel day tank. The first pipeline is equipped with a fuel heater and a fuel heating pump. The fuel heater is connected to a steam supply pipeline and a condensate drain pipeline. The deep fuel tank has a compartment, and the connection point between the first pipeline and the deep fuel tank is located within the compartment. At the end of the deep fuel tank, the first pipeline has a suction port and a heating coil. One end of the heating coil is connected to the steam supply pipeline, and the other end is connected to the condensate drain pipeline. The fuel day tank is also connected to a fuel sedimentation tank, which is connected to the first pipeline via a second pipeline equipped with a fuel delivery pump. The first pipeline is equipped with a temperature sensor and a pressure sensor. The temperature sensor, pressure sensor, fuel heating pump, and fuel delivery pump are electrically connected to a fuel heating controller. A return pipeline is also provided between the fuel sedimentation tank and the first pipeline.

[0019] The energy-saving deep fuel tank heating system utilizes compartments within the deep fuel tank, equipped with suction inlets and heating coils, to ensure the initial fuel temperature and viscosity meet the requirements for fuel pump transfer. The fuel is then transferred to the fuel settling tank via a fuel transfer pump. During ship operation, a fuel separator is used to separate fuel between the settling tank and the day fuel tank, heating the fuel during this process. The high-temperature fuel after separation is then pumped back to the deep fuel tank compartment by a fuel heating pump to mix with the low-temperature fuel. Further fuel is then transferred via the fuel transfer pump to power the ship's main engine. The entire process is automated, with sensors on the mains monitoring fuel temperature and pressure, and a fuel heating controller automatically managing the fuel transfer pump, fuel heating pump, and fuel heaters.

[0020] The design principles and innovations of this application are as follows:

[0021] 1. Reduce the number of heating coils in deep fuel tanks;

[0022] 2. Reduce heat loss through the hull structure into seawater and air;

[0023] 3. Reduce heat radiation from deep fuel tanks to the engine compartment, thus reducing the amount of cooling airflow in the engine compartment;

[0024] 4. By using high-temperature fuel oil to directly heat low-temperature fuel oil, the fuel heating process is faster and more effective;

[0025] 5. Through automated system control, the entire system achieves higher thermal utilization and better energy-saving effects.

[0026] In summary, this is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model patent and the contents of the specification are within the scope of the present utility model patent.

Claims

1. An energy-saving deep tank heating system, comprising a fuel deep tank, a fuel daily tank, and a first pipeline arranged between the fuel deep tank and the fuel daily tank, characterized in that: The first pipeline is provided with a fuel heater and a fuel heating pump, the fuel heater is connected with a steam supply pipeline and a condensed water discharge pipeline; The first pipeline is provided with a fuel heater and a fuel heating pump, the fuel heater is connected with a steam supply pipeline and a condensed water discharge pipeline; The first pipeline is provided with a fuel heater and a fuel heating pump, the fuel heater is connected with a steam supply pipeline and a condensed water discharge pipeline; The first pipeline is provided with a fuel heater and a fuel heating pump, the fuel heater is connected with a steam supply pipeline and a condensed water discharge pipeline; The fuel daily-use tank is also communicated with a fuel sediment tank, the fuel sediment tank is communicated with the first pipeline through a second pipeline, and the second pipeline is provided with a fuel delivery pump; The first pipeline is provided with a fuel heater and a fuel heating pump, the fuel heater is connected with a steam supply pipeline and a condensed water discharge pipeline; The fuel sediment tank and the first pipeline are also provided with a backflow pipeline.

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