1. Propulsion device.
The main propulsion device is composed of main operating subsystems such as lubricating oil system, jacket water system (open or closed system), fuel oil system and so on. When generating energy, all these systems are heated and the temperature is controlled by using heat exchangers in the system. The heat exchangers commonly used in the main propulsion system are-shell and tube heat exchangers and plate heat exchangers.
2. Auxiliary power generation system.
The auxiliary power generation system is similar to the main propulsion system, except that the output is generated when the energy is generated. Shell and tube heat exchangers, plate and plate fin heat exchangers are commonly used.
3. Fresh water system.
To produce fresh water, seawater condensers and jacketed evaporators are used, both of which are heat exchanger types, usually using shell and tube heat exchangers and plate coolers.
4. Refrigeration system.
In the refrigeration system, in the meat room, fish room and vegetable room, the evaporator is used as a phase change heat exchanger. Shell and tube heat exchangers are used in condenser units in refrigeration systems.
5. Fuel injection system.
For proper atomization, the fuel is heated in the heater using steam as a heat carrier. Mainly use the shell and tube heat exchanger to achieve. To reduce sulfur oxide emissions from propulsion units, combustible fuels are mixed with water spray so that they can directly contact the heat exchanger.
6. Steam turbine unit.
If the ship is composed of a steam turbine unit or a turbine generator, a spiral heat exchanger is usually used for heat transfer. In addition to the above, there are several other applications. The heat exchanger is undoubtedly a very critical factor to ensure the normal use of the turbine and make the ship sail smoothly.
Its characteristics are very obvious, mainly because the corrugated sheet has high performance and high heat transfer efficiency; compact size, compact overall structure, does not occupy space; can be quickly started at any time, strong environmental adaptability; easy maintenance Disassembly and assembly, whether it is cleaning or replacing plate gasket is very convenient.
Since it is an ocean-going operation, all equipment must ensure stability, and the plate heat exchanger for ships has stable performance, long service life, and easy installation; in addition, the use of special material titanium plates can prevent seawater from corroding the plates and extend the use Cycles, in the long run, save costs.
With the stability and safety, the operation and operation of the ship can be effectively carried out. The long-term continuous development of the marine business is inseparable from the use of high-efficiency plate heat exchangers.
