How to choose a pressure relief valve? ?
Thread Content
The operating conditions are as follows: the main steam pipeline carries superheated steam at a pressure of 1.0–1.3 MPa, with a temperature of 230–280 degrees. The design pressure for the jacket of the reactor is 0.6 MPa. The heating of the reactor jacket takes place in intermittent bursts. Previously, a pressure reducing valve was used; the pressure before the valve was normal, as was the pressure after it. The problem is that when heating the reactor, the pressure reducing valve responds slowly. Moreover, the required heating time is only 3–5 minutes shorter. When the valve is opened to heat the reactor, the steam flow is insufficient, resulting in a longer heating time, which is not acceptable from a process perspective. How should I make my choice? Are there any other good solutions? ? ?
The main steam pipeline has a diameter of 100, while the heating branch pipeline for the reactor jacket is a pipe with an inner diameter of 32.
After several years of use, the jacket welding now often leaks, and water hammer occurs during heating.
Set a buffer drum at 0.6 MPa
It is recommended to try using a \"self-acting control valve\" instead. It is recommended to install a safety valve after pressure reduction.
There should be water hammer when it is first turned on; it is required to be heated for 3–5 minutes, which is a short period of time. Has it been calculated whether the flow rate is sufficient for a pipe with an inner diameter of 32? Based on practical experience, stand-alone pressure regulators are better than swing-type pressure regulators.