[Q&A] 2017.7.16
Thread Content
What is the function of the compensation ring, also known as expansion joint, on the shell of a fixed-tube-sheet heat exchanger? Answer: When the thermal expansion rates of the shell and the pipes differ, the compensating ring undergoes elastic deformation, either stretching or compressing, in order to accommodate these different levels of thermal expansion. It is suitable for applications where the temperature difference between the two fluids is no more than 70°C and the pressure of the fluid in the shell side is no higher than 600 KPa. http://down.hcbbs.cc/attachment/forum/201706/10/203353z7y06fdo70r6eod0.jpg Petrochemical Zone—New Ideas for Energy Saving: The “Creative Thinking” Campaign (Phase 2 is in full swing) http://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1666758 (Source: Haichuan Chemical Industry Forum) 2017 Coal Chemical Industry: “My Technical Upgrades” http://bbs.hcbbs.com/thread-1786290-1-1.html (Source: Haichuan Chemical Industry Forum Website) First Phase of Haichuan E-book Review Voting—Enter to win prizes by voting (for members of the Management and Technology Group and those in Grade 5 or above) http://bbs.hcbbs.com/thread-1799455-1-1.html (Source: Haichuan Chemical Industry Forum Website)
Absorb the expansion caused by thermal expansion and contraction
Absorb the expansion caused by thermal expansion and contraction
When the thermal expansion of the housing and the pipeline differs, the compensating ring undergoes elastic deformation, stretching or compressing, to accommodate the different levels of thermal expansion of the housing and the pipeline.
When the thermal expansion rates of the shell and the pipelines differ, the compensating ring undergoes elastic deformation, stretching or compressing, to accommodate these different levels of thermal expansion. It is suitable for applications where the temperature difference between the two fluids is no more than 70°C and the pressure of the fluid in the shell side is no higher than 600 KPa.
When the thermal expansion of the casing and the pipeline differs, the compensating ring undergoes elastic deformation, stretching or compressing, to accommodate the different degrees of thermal expansion of the casing and the pipeline.
It is true that heat exchangers with high temperatures, high pressures, and large diameters require expansion joints; however, the use of expansion joints is not recommended nowadays as their coefficient of expansion is low and their effect is limited. For applications involving high temperatures, high pressures, and large tank volumes, floating-head tube-type heat exchangers are advised, although they are more expensive, they offer a higher level of safety
Prevent stress cracking caused by thermal expansion and contraction