Skip to main content

What is Heat Ex-Changers?

What is Heat Ex-changer?
Heat Ex-changer works on the principle of Fluid DynamicsHeat Ex-changer is a device which is used to exchange the heat from one medium of fluid to other medium of fluid. It is widely used in heavy machinery like Hot Water Generator, Air Conditioner, Adiabatic Coolers, Piston Pumps, Roll Oil Coolers, and Coil Condensers etc.
heat exchangers0

                               Heat Ex-Changer

In this figure, there is coil in the medium and water is flowing through medium. In the coil, the hot water steam is moving, so there will be heat transfer from pipe to water, the water which is coming out, it would be hot and steam which is coming out, it would be cold.
Types of Heat Ex-changer:
1.Shell & Tube Heat Ex-changer
Shell & Tube Heat is most common heat ex-changer which is used in the industry. It consist of bunch of tubes supported by baffles. Baffles are important part to support the tubes while assembling. Bunch of tubes assembled inside the shell.
s & t Heat Ex-Changers
Shell & Tube Type Heat Ex-changers

In given above figure, there is bunch of coil inside the shell. In tube, hot water is running and in shell there is cold water. It is counter flow heat exchanger cause the flow of both fluids in different direction. When hot water in tube is moving through cold water phases, it heat energy is transferred to the fluid or vice versa. Whatever the water is coming out, it would be hot.
2.Plate Type Heat Ex-changer
It consists of corrugated and thin metal plates, with small space between them. The metal plates having grooves. It has larger surface area, to travel heat .All plates are connected to rubber gaskets. The principle of this type of heat exchanger is thermal exchange in the properties of fluid.
plate type Heat Ex- changer

Popular posts from this blog


1.Increased thermal efficiency
2. Short payback period & increased combustion rate
3. In the case of combustion of pulverized coal hot air can be used for drying the coal as well as for burning the coal efficiently
4. All standard fuels and even lower grades of coals can be burnt efficiently with hot air

Thermodyne Boilers is a successful manufacturing the Boiler accessories like Air Preheaters, Economizers, Superheaters etc.

What is Wet Scrubber?

Wet Scrubbers are the pollution control equipment that helps in controlling the pollution by reducing the concentration of pollutants such as Sulfur dioxide (SO2) and ash content in exhaust flue gases.
As the pollution norms are getting stringent and the government is making sure that pollution laws are being implemented, many industries are coming up with various solutions and strategies for reducing the pollution and its management. One such solution is using pollution control equipment such as Wet Scrubbers.

Industries or power plants generally have boilers or furnaces installed in their processes where combustion of fuel is taking place. Combustion of fuel generates flue gases that contain a large amount of heat which is transferred to water to convert into steam. These fuels generally contain carbon, sulfur, hydrogen, oxygen and on combustion with air, they form flue gases containing Sulfur dioxide (SO2), Carbon dioxide (CO2), Ash, Water vapor (H2O). Out of these SO2 and Ash …

Why Do We Need A Fusible Plug?

Fusible Plug is a fitting used in Steam Boilers to enhance the safety during operation. It’s working depends upon the water level in the Boiler shell. A fusible Plug is a threaded metallic cylindrical object, with a tapered hole in it which goes through its entire length. It is usually of brass, bronze or even gunmetal. In a smoke tube steam boiler, it is fitted on the front tube sheet, just above the tubes (used for flue gas flow) arrangement but below the perforated feed line inside the shell.

But the question is how exactly this little thing helps in preventing a huge disaster. It’s working is dependent only on the temperatures not on pressures. What happens is that during steam boiler operation, the feed pumps to supply water for steam conversion in the Boiler shell on the basis of the signal sent to it by the electrical panel. And electrical panel receives this signal from the mobrey (automatic water level controller) based on the fluctuating water levels due to conti…