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Description
The tube sheet at one end of the tube bundle can float freely, completely eliminating thermal stress; and the entire tube bundle can be pulled out of the casing, which is convenient for mechanical cleaning and maintenance. Floating head heat exchangers are widely used, but the structure is more complicated and the cost is higher.
Features
Simple structure, easy manufacturing
Large processing quantity (1-2,000m³/h)
Extensive material selection (carbon steel, stainless steel, copper or other metals)
Stable and reliable operating state
Strong adaptability (applicable to almost all industries)
Adaptability to high temperature and pressure (≤800°C; ≤6.0Mpa)
Selection points of heat exchanger
1) According to the known flow of cold and hot fluid, the initial and final temperature and the specific heat capacity of the fluid determine the required heat transfer area. The heat transfer area is estimated initially. Generally, the heat transfer coefficient is assumed, the structure of the heat exchanger is determined, and then the value of the heat transfer coefficient K is checked.
2) When selecting the heat exchanger, pay attention to the pressure level, operating temperature, and connection conditions of the interface. Under the premise of pressure drop and installation conditions, the shell-and-tube heat exchanger is selected to have a long diameter with a small diameter, which is conducive to increasing the heat exchange capacity.
3) The pressure drop of the heat exchanger should not be too large, generally controlled between 0.01 ~ 0.05MPa;
4) The velocity of the fluid should consider the viscosity of the fluid. The velocity of the fluid with a large viscosity should be less than 0.5 ～ 1.0m / s; the velocity of the fluid in the general fluid pipe should be 0.4 ～ 1.0m / s; .
5) A filter should be set before the hot water enters the heat exchanger.
6) The combined result of single processing and number of heat exchangers in the heat exchange station should meet the requirements of the total heat supply load and regulation of the heat exchange station. On the premise of meeting the user's thermal load regulation requirements, the number of heat exchangers in the same heating coefficient should not be less than two and not more than five.
System Application Chart
Entry of hot energy
Export of cold energy
Entry of cold energy
Tube plate
Baffle board
Seal head
Discharge outlet
Crust
Heat-exchange tube
Export of hot energy
We usually believe that one's character decides products' high quality, the details decides products' excellent, with the REALISTIC, EFFICIENT AND INNOVATIVE staff spirit for Industrial Shell and Tube Heat Exchanger OEM Manufacturer Supplier. As a manufacturing and sales organization, brand image building is very important to us, so after-sales service plays a pivotal role in our sales system. After years of continuous development and the improvement of production management capacity, we have become an enterprise integrating R&D, manufacturing, sales and after-sales service.