A tubular heat exchanger (shell-and-tube heat exchanger) transfers heat between two fluids without mixing them and is the most widely used exchanger type in industry. Makfen designs tubular heat exchangers to your process data and selects the materials, tube bundle arrangement and connections for each application. Thanks to their robust construction and their ability to handle high pressures and temperatures, they are widely used in the chemical, petrochemical, food, pharmaceutical, cosmetics and marine sectors.
In a tubular heat exchanger one fluid flows through the tube bundle while the other flows on the shell side, around the outside of the tubes; heat is transferred through the tube wall. It can be used between fluids in different phases: liquid-liquid, water-oil, water-gas (air, nitrogen, etc.), steam-water, steam-oil, steam-gas, oil-oil and oil-gas.
By tube bundle design, tubular heat exchangers are generally classified as straight-tube and U-tube units. The design is governed by the properties, flow rates and temperatures of the fluids and by the phase changes they undergo inside the exchanger (condensation, evaporation, etc.).
Tubular heat exchangers are mainly made of AISI 316L stainless steel. Depending on the process, carbon steel, AISI 304L stainless steel, duplex stainless steel and Hastelloy (a nickel alloy) are also used, and the tube bundle can be made of copper or brass tubes where required.
Tube bundles are manufactured from carbon steel, stainless steel, copper or brass tubes according to customer requirements and process data. Tube diameters range from 8 mm to 42.4 mm and are selected according to the properties, flow rate and fouling tendency of the fluids. Straight-tube and U-tube bundles are designed with scaling and corrosion, the most common problems, in mind.
Tubular heat exchangers are used wherever heating, cooling or heat recovery is needed, above all in the textile, marine and food industries. In plants with steam, thermal oil or superheated water boilers they are an economical way to supply utility water, hot water and low-pressure steam. In energy recovery applications, in the textile industry and in wastewater heat recovery systems, straight-tube or U-tube exchangers selected with cleanability in mind make operation easier.
It is a heat exchanger consisting of a shell and a tube bundle inside it, which transfers heat between two fluids without the fluids mixing.
They are used in the chemical, petrochemical, food and beverage, pharmaceutical, cosmetics, textile and marine sectors, in applications such as process heating and cooling, hot water generation with steam, oil cooling and waste heat recovery.
Plate heat exchangers are more compact for the same thermal duty and usually achieve higher heat transfer coefficients. Tubular heat exchangers take up more space, but their robust construction makes them better suited to high pressures and temperatures, fouling or particle-laden fluids and steam service, and they are simple to maintain.
The price depends on the thermal duty, design pressure and temperature, materials and dimensions. Our technical team reviews your process data and prepares a preliminary design, after which a quotation is issued. For pricing, please get in touch through our contact page.
Tags: #Tubular heat exchanger #Shell and tube heat exchanger #U-tube heat exchanger #Straight-tube heat exchanger #Heat exchanger manufacturing
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Makfen is a process equipment manufacturer and engineering company founded in Istanbul in 2009. We design and manufacture reactors, tanks, mixers, blenders, silos and heat exchangers for the chemical, pharmaceutical, food, cosmetics and… Read More
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