Application of plate heat exchanger in marine industry

Gasket plate heat exchangers for ships, which we call Marine heat exchangers, are mainly used in cruise ships, liquefied gas ships, container ships, bulk carriers and engineering ships. Its main working conditions include ship central cooling system (high and low temperature fresh water cooling), diesel engine cooling, preheating, cylinder liner cooling, lubricating oil cooling, heavy fuel oil preheating, seawater desalination, etc.

First, the working principle of Marine heat exchanger
The structure of Marine heat exchanger and general heat exchanger equipment is the same, in stainless steel, titanium and other corrosion resistant metal sheet, with a press flat press molding and design ripples, in the surrounding with synthetic rubber sealing gasket seal, thus forming a "heat transfer plate". The required number of the heat transfer plates is suspended over the guide rod and overlapped between the steel plate fixed frame and the moving frame, and fixed with a screw. The high-temperature fluid medium and the low-temperature fluid medium are separated by a flow path formed by interactive flow between each plate to exchange heat.

Because it is an ocean-going operation, all equipment must ensure stability, and Marine heat exchangers have stable performance, long service life, easy installation, smaller footprint, higher heat exchange efficiency, and less scaling; In addition, the use of special material titanium plate can prevent the corrosion of seawater on the plate, extend the service cycle, and save costs in the long run. In the Marine industry, the high efficiency, high quality, safety and reliability of Marine plate heat exchangers play an important role in the normal work of Marine turbines.

Second, Marine heat exchanger application
1, cooling system, the central cooling system is divided into high temperature hot fresh water and low temperature warm fresh water closed system. The former is used to cool the main engine, while the latter is used to cool hot fresh water and various coolers. The heated warm fresh water is cooled in a central cooler by an open seawater system. Therefore, the use of only one cooler with seawater as the coolant simplifies the layout of seawater piping. The seawater and fresh water pipes in the central cooling system are separated, the fresh water pipes are less corroded and clean, the management cost is low, and the system is reliable; High temperature and low temperature fresh water cool different ship equipment respectively, so that the system has strong adaptability and improves the working performance of equipment.

2, propulsion system, including lubricating oil system, jacketed water system (open and closed) and fuel system and other operating subsystems. When energy is generated, all of these systems are heated and use heat exchangers within the system to control the temperature for cooling. Through heat transfer, heat is transferred from the engine coolant to the ship's circulating water. In this way, the engine coolant can be kept within the appropriate temperature range, avoid overheating and undercooling damage to the engine, and also increase the efficiency of the engine.

3, fresh water system, in order to produce fresh water, the use of seawater Condenser and jacket Evaporator, both are the type of heat exchanger, in the fresh water generator, the main role of Marine heat exchanger is to transfer heat through the high temperature and high pressure seawater and low temperature and low pressure freshwater, so that the salt in the seawater can be condensed and separated, so as to achieve seawater desalination. In addition, heat recovery can also be achieved, and the generated waste heat can be reused to increase energy utilization efficiency. Therefore, the application of Marine heat exchanger in fresh water generator plays an important role in ensuring Marine life and navigation safety.

Baode plate heat exchanger manufacturer,10 years focus on imported plate heat exchanger production and development. Provide gasket plate heat exchanger, semi-welded plate heat exchanger, food grade stainless steel plate heat exchanger, Plate And Shell Heat Exchanger and other heat exchange equipment.