阅读说明：本技术 船用油冷却装置 (Marine oil cooling device ) 是由 杨海艳 刘丽媛 于 2018-09-12 设计创作，主要内容包括：本发明公开了一种船用油冷却装置,包括冷却机组、贮油罐,其特点在于所述的压缩机冷却机组中的蒸发器设置在贮油罐内,贮油罐的顶部设置有放空管,贮油罐上还设置有供油管和出油管,并设有液位表和液位控制器。上述结构的船用油冷却装置结构简单,能有效降低低硫油的温度,使其满足使用要求,本结构的低硫油冷却装置适合以低硫油为燃料的船用锅炉燃油系统。(The invention discloses a marine oil cooling device, which comprises a cooling unit and an oil storage tank and is characterized in that an evaporator in the compressor cooling unit is arranged in the oil storage tank, the top of the oil storage tank is provided with a vent pipe, the oil storage tank is also provided with an oil supply pipe and an oil outlet pipe, and the oil storage tank is also provided with a liquid level meter and a liquid level controller. The marine oil cooling device with the structure has a simple structure, can effectively reduce the temperature of low-sulfur oil, and enables the temperature to meet the use requirement.)

1. Marine oil cooling device, including compressor cooling unit, oil storage tank, its characterized in that: the evaporator in the compressor cooling unit is arranged in an oil storage tank, the top of the oil storage tank is provided with a vent pipe, the oil storage tank is also provided with an oil supply pipe and an oil outlet pipe, and is provided with a liquid level meter and a liquid level controller.

2. The marine oil cooling device according to claim 1, wherein: the evaporator is a coil evaporator.

3. The marine oil cooling device according to claim 1 or 2, wherein: the condenser in the compressor cooling unit is a water-cooling shell-and-tube condenser resistant to seawater corrosion.

4. The marine oil cooling device according to claim 1 or 2, wherein: and a gas-liquid separator is also arranged between the evaporator and the compressor in the compressor cooling unit.

Technical Field

The invention relates to a marine boiler fuel oil system, in particular to a marine oil cooling device.

Background

Low sulfur oil is required for ships berthing for more than two hours in ports of the european union in order to protect the environment and reduce the emission of pollutants, and is widely used as the emission requirements become stricter. The low-flash point and low viscosity of the low-sulfur oil greatly affect fuel equipment and safety on ships, so that the temperature of the low-sulfur oil must be reduced. The oil temperature is reduced, on one hand, the difference between the oil temperature of the fuel oil and the flash point can be enlarged to improve the safety, and on the other hand, the viscosity of the low-sulfur oil can be increased by reducing the temperature, so that the use requirement is met. The compressor chiller is the most commonly used refrigeration system, and typically includes: the refrigeration principle of the system comprises a compressor, a condenser, an evaporator and necessary control elements, wherein a gaseous refrigerant emits heat when passing through the condenser and is condensed into normal-temperature liquid (30-35 ℃), the normal-temperature high-pressure liquid passes through the control elements such as an electromagnetic valve and an expansion valve, the normal-temperature high-pressure liquid is throttled and depressurized to form a low-pressure low-temperature (0-10 ℃) vapor-liquid mixture and enters the evaporator, the liquid refrigerant absorbs the heat of a refrigerated object and is vaporized into low-temperature low-pressure vapor, the vapor is sucked by the compressor, the high-temperature high-pressure vapor is compressed to enter the condenser, and the temperature is.

At present, a marine boiler fuel oil system does not have a cooling function, and the requirements of low-sulfur oil delivery and combustor combustion cannot be met.

Disclosure of Invention

The invention aims to solve the problem of providing a marine low-sulfur oil cooling device capable of effectively refrigerating low-sulfur oil.

In order to solve the problems, the invention adopts the technical scheme that: the marine oil cooling device comprises a compressor cooling unit and an oil storage tank, wherein an evaporator in the compressor cooling unit is arranged in the oil storage tank, the top of the oil storage tank is provided with a vent pipe, the oil storage tank is also provided with an oil supply pipe and an oil outlet pipe, and the oil storage tank is provided with a liquid level meter and a liquid level controller.

The evaporator is a coil evaporator.

The condenser in the compressor cooling unit is a water-cooling shell-and-tube condenser resistant to seawater corrosion.

And a gas-liquid separator is also arranged between the evaporator and the compressor in the compressor cooling unit.

The oil storage tank is provided with two oil supply pipes, one of which is an electromagnetic valve and is used for supplying oil in a normal state; one path is an oil injection pump which is used for supplying oil in an auxiliary state.

And a drain pipe is arranged at the bottom of the oil storage tank.

The invention has the advantages that: the structure is simple, and the temperature of the low-sulfur oil can be effectively reduced, so that the use requirement is met. The low-sulfur oil cooling device with the structure is suitable for a marine boiler fuel oil system taking low-sulfur oil as fuel.

Drawings

FIG. 1 is a schematic view showing the structural principle of the marine oil cooling device according to the present invention.

In the figure: 1. the system comprises an oil storage tank, 2, a compressor, 3, a water-cooled shell-and-tube condenser, 4, a coil evaporator, 5, an emptying pipe, 6, a first oil supply pipe, 7, a second oil supply pipe, 8, an oil outlet pipe, 9, a gas-liquid separator, 10, a sewage discharge pipe, 11, a liquid level meter, 12 and a liquid level controller.

Detailed Description

The invention is described in further detail below with reference to the figures and the specific embodiments.

As shown in fig. 1, the marine oil cooling device comprises a compressor cooling unit and an oil storage tank 1, wherein the compressor cooling unit comprises a compressor 2, a water-cooling shell-and-tube condenser 3 and a coil evaporator 4, the coil evaporator 4 in the cooling unit is arranged in the oil storage tank 1, a gas-liquid separator 9 is arranged between the coil evaporator 4 and the compressor 2, a vent pipe 5 is arranged at the top of the oil storage tank 1, a first oil supply pipe 6 and a second oil supply pipe 7 are also arranged on the oil storage tank 1, a solenoid valve 61 is arranged on the first oil supply pipe 6, and an oil injection pump 71 is arranged on the second oil supply pipe 7; the flowline 8 is typically located in the lower and middle part of the tank body of the oil storage tank 1. The bottom of the oil storage tank 1 is provided with a sewage discharge pipe 10. The water-cooled shell-and-tube condenser 3 is made of seawater corrosion resistant material, such as aluminum brass, so that the water-cooled shell-and-tube condenser 3 can be reliably used under the condition of using seawater as cooling water. The liquid level meter 11 can visually observe the actual liquid level in the oil storage tank, and the liquid level controller 12 can provide a liquid level control output point and alarm output of low liquid level.