What are some common causes of gas pipeline vibration 20 Carbon Steel line?
Submitted by: AdministratorCheck / consider the following:
► The upper pressure range and /or the smaller pipe diameters prompts me to investigate the possibility that the gas is reaching critical flow somewhere downstream within the pipe. When a gas gets to critical flow, sonic booms (producing vibration) are expected. In fact, one of the main means by which the additional pressure in the pipe is lost.
► If the source is a compressor, look for surging.
► If the source is a tower, look for pressure cycling in the tower
► Look at critical flow through any control valve that may be in the line.
► Are there any vapors in the line, which can condense and produce two-phase flow? Two-phase flow can cause vibration.
In chemical plant design, if we suspect two-phase flow, we instruct the piping designers to provide special anchoring.
Submitted by: Administrator
► The upper pressure range and /or the smaller pipe diameters prompts me to investigate the possibility that the gas is reaching critical flow somewhere downstream within the pipe. When a gas gets to critical flow, sonic booms (producing vibration) are expected. In fact, one of the main means by which the additional pressure in the pipe is lost.
► If the source is a compressor, look for surging.
► If the source is a tower, look for pressure cycling in the tower
► Look at critical flow through any control valve that may be in the line.
► Are there any vapors in the line, which can condense and produce two-phase flow? Two-phase flow can cause vibration.
In chemical plant design, if we suspect two-phase flow, we instruct the piping designers to provide special anchoring.
Submitted by: Administrator
Read Online Chemical Engineering Job Interview Questions And Answers
Top Chemical Engineering Questions
☺ | What is a good estimate for the absolute roughness for epoxy lined carbon steel pipe? |
☺ | For a heat exchanger, will the overall heat transfer coefficient increase along with an increase in LMTD (log mean temperature difference) around the unit? |
☺ | What is the method of determining maximum differential pressure during hydro testing of shell and tube heat exchangers? |
☺ | What is a "saltation velocity" and how is it used in designing pneumatic conveying systems? |
☺ | Why is post-weld heat treatment (stress relieving) sometimes necessary for welded vessels? |
Top Best Engineering Categories
☺ | Mechanical Engineering Interview Questions. |
☺ | Civil Engineering Interview Questions. |
☺ | Chemical Engineering Interview Questions. |
☺ | Electrical Engineering Interview Questions. |
☺ | Automobile Engineering Interview Questions. |