The function of a flow control valve
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The ones marked in yellow in the diagram are the three flow control valves: one is located on the pipeline at the tank inlet, and the other two are on the pressure lines leading to the level gauge. What is the function of these three flow control valves, and are their positions on the diagram correct?
Only the indicator for the flow control valve in the lower left corner is in the correct direction
Could you tell me about the functions of these three? :P
(1) It does not affect the measured liquid level. (2) The abnormal fluctuations in liquid level are minor. (3) It can also prevent large-scale leaks. It feels that way.
A flow control valve is a safety valve used for non-corrosive media such as oils. It shuts off immediately when the flow rate of the medium in the pipeline exceeds the set value, and it also shuts off automatically in case the pipeline or its attachments are damaged and the flow rate becomes too high, thereby preventing accidents from occurring or worsening. It is generally installed at the inlet and outlet of storage tanks or at the outlet of pipelines, to ensure the safety and reliability of downstream equipment.
The main function of the inlet flow control valve in this case should be to prevent excessive erosion flow rates, while the outlet flow control valve is intended for accident prevention.
The last edit to this post was made by zxz on 2019-2-24 at 15:52. 1. The two flow control valves on the level gauge are intended to eliminate fluctuations in pressure differences within the system, thereby ensuring accurate level measurement. 2. The tank inlet may experience backflow, serving as a flow limiter.
Can these three places be replaced with check valves?
It seems to serve the purpose of preventing leaks; the direction is correct
Propylene feed storage tank: I agree with the answer from the fifth floor; the underlying rationale for this design is primarily safety considerations