How to determine the operating pressure of steam condensate pipelines
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30 kilograms of saturated steam is used to heat a certain device, and the condensate is then discharged through a trap into a condensate recovery tank (at atmospheric pressure). So, what is the operating pressure of this condensate pipeline?
If the amount of 30 kilograms of saturated steam condensate is small, it can be considered for disposal into a condensate recovery tank (at atmospheric pressure). However, after further calculation, it should be taken into account that 30 kilograms of such condensate will need to be flashed to produce steam.
There are issues with the thermal design. The saturated condensate water from this medium-pressure steam, with a design temperature corresponding to 30 kilograms of steam, enters the atmospheric-pressure tank – won’t the flashing steam cause the tank to burst? If the condensate pipeline is very long and there is a pressure drop along it, flashing will occur within the pipeline; water hammer will cause the pipeline to vibrate, the pipe supports may be damaged, and the connections between the pipeline and the atmospheric pressure tank can be torn apart. A flash tank with a pressure of 0.3–0.5 MPa should be designed, after which the condensed water enters a tank at atmospheric pressure. The design pressure for the condensate pipeline is set at 2.5 MPa level
If the amount of steam is very small, is that okay? As a result, very little steam is vaporized in this way. How is the pressure of the condensate determined after passing through the steam trap?
Hello, I would like to ask how to perform the calculations for the flash tank process Are there any standards to follow?