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Cooling equipment systems work content and application of heat transfer principles and cooling equipment open cooling tower similar to its main feature is the use of coil system liquid and air flow are separated in open cooling tower heat and mass transfer processes occur directly water droplets or water film between the surrounding air stream. In the cooling device, the heat from the coil of the first system fluid convection and conduction coil wall spread manner, and then heat and mass transfer by way of the spray of water droplets or water film and the peripheral wall of the surrounding air stream by heat exchange. Within this system, the coil system is not in contact with the liquid flow outside air. The outer surface of the coil from the tower sprinkler system kept moist. Fan-driven air flow through the coil. In the same heat load conditions, evaporation loss of cooling equipment, splash damage and sewage damage and open cooling towers are very different.
The most commonly used by the cooling device is a mixed flow type structure in such a structure, the coil located on top of the system for maintenance. Cooling tower packing located below the coil so that the parallel flow of air through the coil will further increase the cooling efficiency of the system. Compared with cross-flow and counter flow cooling device, the system significantly increases the heat transfer effect, thus making the area of Francis cooling equipment to reduce equipment costs and reduce energy consumption, and to retain the advantages of easy maintenance.
The most common residential cooling equipment is water source heat pump air conditioning system application, and coil insulation can be added to protect part to reduce the heat loss in the winter when the system is running. Cooling devices are also often used for water-cooled host system, in order to avoid condensation scaling, and provides system water directly in the winter. In many industrial applications, cooling devices can be used to cool the intermediate frequency furnace, stove, air compressors, pressure vessels and large-scale change oil cooling system of the turbine.
For a particular cooling process, the appropriate coil of the formula is an important consideration. To take into account the system fluid, spray water quality, maintenance requirements, and structural material of the coil can have several different options. Galvanized steel serpentine cooling coil is the most common type of coil, because it can use water, ethylene glycol, and other cleaning solution and a solution of non-corrosive medium such as steam, and is the lowest cost structure. No joint pipe is bent forward and backward has reached the required number of channels, and then assembled into a disk bundle, connected to a common coil / out interface. Then assembled disc bundle galvanized hot dipped galvanizing. In the more severe cases of corrosion, the higher cost of copper and stainless steel can be used in place of ordinary steel pipe. In easy scaling or blockage of the occasion, you should consider using shared with removable panels into / out of the coil structure interface for easy cleaning coils inside when necessary.
Today cooling equipment designed not only to consider the effects of heat conduction, and pay more attention to their use and maintenance convenience. The structure has a factory-assembled modular design, there are also large industrial-style special design according to customer requirements. The structure material hot dipped galvanized steel body, fiberglass body and the concrete body. FRP cooling device for cooling is more demanding in the construction is simple, durable, low cost, based on more services in place.
On the whole, the system is to begin cooling towers and heat exchangers together, direct evaporative cooling occurs in the coil surface, so the system liquid cooling coil inside. Compared with open-water cooling system, which has the following main advantages:
A: heat exchange coil is placed into a cooling tower, eliminating the need for heat exchangers "shell."
B: Original pipe system is reduced to a sink to the cooling tower water circulation loop between the coils.
Under typical conditions of the American West, cooling system required heat transfer area and plate heat exchanger and a combination of open cooling tower system is basically the same, the required fan motor power and open cooling towers are roughly the same.
People every factory, every enterprise in the process, each air-conditioned buildings are to be discharged heat, which may be generated in the production process, or the sun, or computer generated, lighting, lighting and building above generated.