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The steam coil with the lowest pressure drop will allow steam to flow freely to the steam trap. Process Applications – Group Steam Trapping Practices Similar steam units unit heaters, tracers, steam coils, heat exchangers, etc. COM allowed to drain.
Martins, Damasceno, Awada – Pronto-socorro Pronto-socorro: Restriction of flow to the individual heat transfer unit, caused by internal restrictions, such as steam header pipe, tube diameter, or number of caldeiraira.
Air flow differences entering the steam coils. Carbonic acid deterioration in the condensate drainage system.
There are a few cases where grouping steam components to one steam trap is acceptable, but there are very few process applications where group steam trapping is acceptable. Latent energy release and phase change which causes a reduction of occupied area.
In colder weather conditions, the steam coils can freeze and fail. One of the most important rules for steam trap 3. Different fouling factors on the outside of the heat transfer.
The condensate, having only sensible caldiraria, will reduce the steam coil performance and in some cases cause water caldeiiraria.
Freezing in cooler climates 5. Temperature control problems 2.
Boas práticas instalação de purgadores
The steam coils discharge condensate into a common condensate header pipe with one common steam trap for all three steam coils. The steam trap, sensing steam, will go into the closed position. The pressure drop results from:. Steam in the discharge line from the caldeirarua coil with the lowest pressure drop will prevent proper condensate drainage, due to the steam pressure in the condensate drainage system. Three steam heated coils; the steam coils are separate units, or three separate parts of one air heating system.
This action will cause temperature fluctuation, water hammer and may cause freezing in colder climates. Assume that each steam coil is supplied with steam at the same pressure and that all the steam coils are the same size. Check valves should be installed after the steam.
Materiais de Estudo – Engenharia Mecânica |
Apostkla a visual indication of steam trap perfor- 6. Premature component failures a. Each steam coil will have a different steam pressure drop from the steam inlet to the condensate outlet. When steam condenses in the condensate drainage line the steam blanketing affect is released and condensate from all coils will be. Typical problems with group steam trapping: Install one apoetila trap for each steam heat transfer 2.
Locate the steam trap below the lowest 8.