Ships must be configured to make a complete set of power devices and auxiliary equipment that can be sailed on the water. These power devices include ship agency, auxiliary power devices, steam boilers, refrigeration and air-conditioning devices, compressed air devices, boat pumps, Pipeline system, water production and automation system, etc. These electromechanical equipment are mainly concentrated in the cabin, specializing in management of these devices is a wheel engine.
Active force device
The ship's active device is also known as "host". It is the heart of the ship, which is the most important part of the ship's power equipment, mainly including:
(1) The ship host can generate a commonly known as the engine of the ship, including various pumps and heat exchangers, tubes such as hosting services. The host of the merchant ship is based on the ship diesel engine, followed by a steam turbine.
(2) axial and propeller
In the ship propeller, the propeller is widely used in the propeller, most of the propeller of the fixed pitch or adjustable pitch; the ship axis is to transmit the power emitted to the propeller. The ship host is driven by the transmission and the axial bonding propeller to rotate The thrust, overcoming the hull resistance makes the ship forward or retreat.
(3) Transmission
Pass the power of the host to the propeller, in addition to the driving force, while also decelerating, shock absorption, the boat can also utilize transmission devices to change the direction of rotation of the propeller. The transmission device is slightly different due to the host type. In general, it is composed of a reducer, clutch, coupon, coupling, thrust bearing, and ship shaft.
Auxiliary power unit
The ship auxiliary power unit is also known as "auxiliary machine" means a generator on the boat, which provides electricity for ships in normal conditions and emergency situations. Electromechanical equipment such as engine groups, distribution plates constitutes a ship power station.
(1) Generator set
The original power is mainly provided by diesel engine. Based on ship safety and reliability and maintenance management, large ships have more than two same-type diesel generators, and multiple simultaneous power generation can be used as needed. For energy saving, sailing, there are The ship can use the host's drive shaft to drive generator power generation (shaft generator) or the low-pressure steam generating low pressure steam using the residual heat of the main exhaust gas.
(2) Package
It performs electricity distribution, control, delivery, transformer, converted to ensure the needs of each power drag device and shipping, lighting, signal and communication.
steamer
On the ship of the diesel engine, there is a need to have a steam boiler, which is composed of auxiliary fuel stove and exhaust boiler and a tube system for its supporting services. The auxiliary fuel boiler is the need for auxiliary steam for ships. Heating fuel and oil, heating, life water, kitchen, boiling water, etc., and meets the needs of steam of the auxiliary machine. For energy saving, the exhaust boiler in the sailing boiler is used to generate steam in the exhaust gas in the exhaust gas, only the auxiliary is used when mooring Fuel boiler.
