Low-noise operation control method of ship cooling system based on real-time monitoring

Abstract

The invention discloses a low-noise operation control method of a ship cooling system based on real-time monitoring, and relates to the technical field of ships. A system operation characteristic graph is constructed based on system flow, a hydraulic balance matching scheme and vibration noise data of the ship cooling system in different operation states, system working condition regulation and control are carried out according to a system operation scheme meeting system operation requirements given by the graph, a scheme with minimum vibration noise data is finally selected to be executed, the forming process of the regulation and control scheme is more scientific, the execution response speed is higher, the mutual matching relation between pipeline equipment can be considered, and the accuracy degree and the engineering applicability are greatly improved.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to a low-noise operation control method of a ship cooling system based on real-time monitoring. Background technique [0002] To realize multi-working conditions and low-noise operation of the cooling pipeline system of a ship, two basic conditions must be met: 1. Fully grasp the change law of vibration and noise at the system level; Condition points match. However, it is difficult to achieve these two points at present, mainly because: [0003] 1. The cooling pipeline system of the ship is complex, including water pumps, valves, mufflers and other equipment, pipeline components such as straight pipes, elbows, tees, and accessories such as pipeline supports and vibration isolators. The above equipment components can be The source of vibration and noise. After multiple equipment components form a system, the performance of equipment components will affect and limit each other, and th...

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Problems solved by technology

[0003] 1. The cooling pipeline system of the ship is complex, including water pumps, valves, mufflers and other equipment, pipeline components such as straight pipes, elbows, tees, and accessories such as pipeline supports and vibration isolators. The above equipment components can be The source of vibration and noise. After multiple equipment components form a system, the performance of equipment components will affect and limit each other, and the transmission of vibration and noise will also be coupled with each other.

It can be seen that the vibration and noise transmission of the cooling pipeline system is a complex process with multiple sources, multiple types, multiple paths, and multiple couplings, so it is difficult to evaluate the hydraulic and vibration and noise characteristics of the cooling pipeline system

[0004] 2. The low-noise operating conditions of each equipment component also have matching adaptability problems

There are many combinations and matching schemes of pump speed and valve opening to achieve the same cooling flow rate. In the scheme, the vibration and noise levels of the pumps and valves have opposite trends, and iterations must be repeated to obtain the best combination of pump speed and valve opening.

[0005] Therefore, the existing independent equipment vibration and noise characteristic test plus system vibration and noise transfer calculation method cannot comprehensively and accurately grasp the vibration and noise variation law of the entire cooling pipeline system, and realize low-noise operation under different working conditions

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