The purpose of having a Recovery section between a Break Tank and Surge Vessel is an important part of controlling the pressure of a water supply system. When choosing the right recovery section size, it is important to account for the expected flow range of the application, as well as the duration between the peak flow and return to steady flow. It is also important to note that the pressure at the Break Tank should not exceed the design pressure of the pressure-containing components.
A Recovery section is generally located between the Break Tanks and Surge Vessels in water systems, and they are important components in controlling pressure within a fluid carrying device such as pipes and pressure vessels. As part of the pressure control equipment, Recovery sections are designed to create a controlled pressure decrease.
This allows for the pressure to be maintained within the design limits, and is referred to as “pressure attenuation,” because it is a gradual reduction in pressure. This means that pressure surges and drop, which can be enough to damage or break pressure holding components, can be prevented or reduced to an efficient level.
The size of a Recovery section, or rather, the level of attenuation, must be chosen with the specific application in mind. This means that the flow profile and peak flow rates must be taken into account. If a smaller flow rate than expected is possible within the system, then a larger Recovery section should be used in order to ensure that the pressure stay within acceptable limits.
It is also important to account for the duration between peak flows and return to steady state. If a large decrease in flow is expected and the duration between peak and return to steady state is relatively short, then a larger recovery section is needed to reduce the pressure drop rapidly.
For all applications, it is important to remember that the pressure at the Break Tank should not exceed the design pressure of the pressure-containing components. If the pressure at the Break Tank is too high, then it can be dangerous, because it can cause to put too much stress on the components.
For these reasons, the installation of a Recovery section between a Break Tank and Surge Vessel is an important consideration, and the size of the Recovery section should be accurately chosen for the specific application.
