Refinery units, pipelines, instruments, flowchart legends

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This post was last edited by *nht1 on 2016-7-30 09:11. I. Pipes, signal wires, fittings, and other wire types: http://bbs.hcbbs.com/uploads/allimg/160719/1-160G9110130538.jpg http://bbs.hcbbs.com/uploads/allimg/160719/1-160G9110159139.jpg II. Valves 1. Valves: http://bbs.hcbbs.com/uploads/allimg/160719/1-160G9110230A4.jpg http://bbs.hcbbs.com/uploads/allimg/160719/1-160G9110243D9.jpg http://bbs.hcbbs.com/uploads/allimg/160719/1-160G911025C57.jpg Note: ① Butterfly valves for special purposes need to be labeled. The labeling method is XXX-N. Here, XXX refer to BVE (electro-hydraulic actuated butterfly valve), BVA (pneumatic butterfly valve), and BVM (electric butterfly valve) respectively. For example, the notation format for an electric butterfly valve is: http://bbs.hcbbs.com/uploads/allimg/160719/1-160G911215YE.jpg. ② Safety valves also need to be labeled. The labeling method is PSV-N. Where N is the number. For example: http://bbs.hcbbs.com/uploads/allimg/160719/1-160G9112215B3.jpg ③ The spool valve must be labeled, using the same method as in ①. Here, XXX refer to SVE (electro-hydraulic slide valve), SVA (pneumatic slide valve), and SVM (electric slide valve) respectively. 2 Control valve actuation types http://bbs.hcbbs.com/uploads/allimg/160719/1-160G911051K39.jpg Note: ① For pneumatic diaphragm control valves, a status indication is required; where FC means the valve closes in the event of a supply air failure ； FO: Turns on in case of gas supply failure ； The position of the control valve remains unchanged (position holding) in case of a FL gas supply interruption ； When the FLC gas supply is interrupted, the position of the control valve remains unchanged (position retention); at low signal levels, the valve closes ； When the FLO gas supply is interrupted, the position of the control valve remains unchanged (position retention); at low signal levels, the valve opens ； For example, for a pneumatic control valve that should close in the event of an air supply failure, the representation is as follows: ② If it has a manual reset function, it should be indicated using the link http://bbs.hcbbs.com/uploads/allimg/160719/1-160G911223G59.jpg. The representation is as follows: http://bbs.hcbbs.com/uploads/allimg/160719/1-160G9112252R7.jpg
III. Tower: http://bbs.hcbbs.com/uploads/allimg/160719/1-160G91106054V.jpg
Note: ① Represents the oil collection tank; ② Represents the foam breaker; ③ Represents liquid drainage in the middle of the dual-flow tray; ④ Represents liquid drainage on both sides of the dual-flow tray; ⑤ Represents the liquid distributor; ⑥ Represents the packed tower.
IV. Furnace: http://bbs.hcbbs.com/uploads/allimg/160719/1-160G9110631Q7.jpg http://bbs.hcbbs.com/uploads/allimg/160719/1-160G9110Gb41.jpg
V. Heat exchange equipment: http://bbs.hcbbs.com/uploads/allimg/160719/1-160G9110A9401.jpg http://bbs.hcbbs.com/uploads/allimg/160719/1-160G9110KD05.jpg http://bbs.hcbbs.com/uploads/allimg/160719/1-160G9110Q4638.jpg
VI. Containers and tanks: http://bbs.hcbbs.com/uploads/allimg/160719/1-160G9110TX91.jpg http://bbs.hcbbs.com/uploads/allimg/160719/1-160G9110ZVG.jpg
VII. Reactor: http://bbs.hcbbs.com/uploads/allimg/160719/1-160G911092Q25.jpg
VIII. Pumps and compressors: http://bbs.hcbbs.com/uploads/allimg/160719/1-160G9110952156.jpg http://bbs.hcbbs.com/uploads/allimg/160719/1-160G911100Q46.jpg
IX. Small-scale equipment and other machinery
1. Small-scale equipment: Small-scale equipment refers to those installed along pipelines or at their ends. Examples are shown below: http://bbs.hcbbs.com/uploads/allimg/160719/1-160G9111025Q7.jpg http://bbs.hcbbs.com/uploads/allimg/160719/1-160G9111039396.jpg
2. Other machinery: http://bbs.hcbbs.com/uploads/allimg/160719/1-160G911141YX.jpg http://bbs.hcbbs.com/uploads/allimg/160719/1-160G9111432452.jpg http://bbs.hcbbs.com/uploads/allimg/160719/1-160G9111453911.jpg
X. Instruments and DCS: http://bbs.hcbbs.com/uploads/allimg/160719/1-160G911152M50.jpg http://bbs.hcbbs.com/uploads/allimg/160719/1-160G9111546364.jpg http://bbs.hcbbs.com/uploads/allimg/160719/1-160G9111602407.jpg
Note: ① Process parameters: T represents temperature, P represents pressure, F represents flow rate, and L represents liquid level. ② The diameter of the circles in the instrument diagram is 10–12 mm.