Installation height of horizontal tank
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The last edit to this post was made by chenlin_g on 2017-9-21 at 17:18. I would like to ask fellow sailors: regarding the installation height of horizontal tanks, one requirement is to provide sufficient height to ensure that only the liquid phase is present at the inlet of the control valve. Should this requirement be understood in this way? There is no pump at the liquid phase outlet; there is a pressure difference of approximately 2.0 MPa before and after the control valve on the liquid phase outlet pipe at the bottom of the tank. Why should the interlock cut-off valve be located near the equipment? Doesn’t the far point give more time for movement? Let’s discuss the first question: why is it necessary to provide sufficient installation height? ;P
If there is only liquid level at the control valve inlet, that means no gas can enter! Why is it better for chain control to be as far away as possible?
Place the interlock cut-off valve a little further away from the equipment; I think this way, in the event of an abnormality, the cut-off valve can shut off immediately, rather than waiting for some delay after the abnormality occurs, which would be too late.
1. It is to prevent the inlet from vaporizing. 2. They are both electrical signals; the response time is independent of distance – being closer simply means less fluid needs to be stored
Short distance, less liquid stored. It can prevent water hammer when the valve operates.
A sufficient liquid column height is required to ensure that the control valve remains in a liquid phase even after pressure reduction; in the design, an additional height should be added based on the saturated pressure of the medium at its current temperature, in order to prevent flashing
The second issue concerns fire isolation; it is required to be installed as close as possible to the base of the container, with consideration given to preventing the spread of fire. The relevant standard is GB-50160