What are the requirements for steam traps in applications with superheated steam?
Thread Content
There is no condensed water in superheated steam, so why are steam pipes carrying superheated steam still required to be equipped with steam traps? Also, what are the requirements for steam traps used in superheated steam applications?
Anything above the saturation steam temperature is considered superheated, which shows that there are different levels of superheating. A temperature 1°C above saturation is still considered superheated, but compared to a temperature 50°C above saturation, the amount of moisture present in the latter case is necessarily greater. Therefore, there is more or less water in the pipeline, and at this time a steam trap is needed to reduce the water content. As for the selection process, I won’t go into details for areas that are not my specialty!
In most cases, it’s not necessary to install one; it can be installed in areas with low points or dead corners. There is nothing specifically designed for superheated steam, and the steam trap serves the same purpose
Under normal operation, there is generally no condensate water; setting up drain valves (that is, two valves) is sufficient. But sometimes a steam trap is still installed, because when steam is used to heat the pipes, there is still a large amount of condensed water present. If it is connected to a turbine, it is necessary to have a steam trap and a drain system in place in order to reach the temperature required by the turbine as quickly as possible. A standard mechanically driven steam trap will suffice; the temperature and pressure must meet the required levels
Installation is required; otherwise, the condensate water is prone to causing water hammer effects
When heat is lost from the pipes, condensate water is formed. This water accumulates in low-lying areas and in front of valves, which can easily lead to water hammering and cause significant damage to the pipelines and structures. Therefore, steam traps must be installed
Under what conditions is there condensed water in steam transmission pipelines? https://bbs.hcbbs.com/thread-1011592-1-1.html (Source: Huahai Chuanliu – Haichuan Chemical Industry Forum Website)