Heat exchanger shell side anti-scour plate
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GB151 specifies that impact shields should be installed at the inlet in the following situations; I couldn’t understand point c): Is it 1. abrasive gases, 2. abrasive steam, 3. abrasive gas-liquid mixtures, or 1. abrasive gases, 2. steam, 3. gas-liquid mixtures?
There are abrasive gases, either steam or gas-liquid mixtures
It means either or, right?
The wording in the section TEMA RCB 4.6.1 GB151 is very imprecise
1. Abrasive gases 2. Steam 3. Gas-liquid mixtures
It is necessary to understand the purpose of installing anti-backflow devices in heat exchangers. The high temperature and flow rate of the steam result in significant impact on the equipment when it strikes the heat exchanger, which can easily damage the heat exchange tubes
It is mainly to prevent the gas from causing impact, erosion, or vibration on the heat exchange tubes! So