1.5MW Natural Circulation Type Chinese Oil Fired Boilers
A 1.5MW oil fired boiler is package fire tube boiler, natural circulation type. We know boilers circulation systems are natural circulation and forced circulation. In this paper, we will analyze the 1.5MW natural circulation type oil fired boiler.
Natural circulation type boiler
In natural circulation boilers, the circulation of water depends on the difference between the density of an ascending mixture of hot water and steam, and a descending body of relatively cool and steam-free water. The difference in density occurs because the water expands as it is heated, and thus, becomes less dense. In most boilers there is a natural circulation of water, the fundamental principle of which is based on the principle of thermosiphon.
In a boiler with free natural circulation, the generating tubes are installed almost horizontally, with only a slight incline toward the vertical. When the generating tubes are installed at a much greater angle of inclination, the rate of water circulation is greatly increased. Therefore, boilers in which the tubes slope quite steeply from steam drum to water drum are said to have natural circulation of the accelerated type.
Natural circulation evaporators are very simple and are normally used where the effluent has a high viscosity, higher levels of hardening agents, un-dissolved solids, for products which are affected by their own high temperatures and longer residual times. The operation can be continuous, batch or semi-batch and does not require pumps for recirculation or intermediate product transfer.
The overall circulation rate (flow) in natural circulation systems mostly depends on the height, operating pressure and heat input rate of the boiler.
Packaged type oil fired boiler manufacturer
Heavy oil, light oil, diesel, waste oil, kerosene are the fuels for industrial oil fired steam & hot water boilers. Among these boilers, heavy oil fired steam boiler for sale is usually three pass, wet back design shell boiler. We, one of the largest oil fired boiler manufacturers, have WNS and SZS series 1 ton -35 ton heavy oil fired boiler for sale. Feel free to contact us to get the oil fired boiler price list!