Synthetic Ammonia Process Technology Exchange Area [Daily Question 2009-02-16]
Thread Content
Synthetic Ammonia Process Technology Exchange Area [Daily Question 2009-02-16] What are the problems associated with the design and use of copper pumps and their inlet/outlet pipes in the production of refined gas using the copper melt method? Purpose: Communication and mutual progress. aspiration: Work together to help newcomers improve! Link: Technical Exchange Area for Ammonia Synthesis Process 【Daily Question 2009-02-15】 What are the causes of overcurrent in screw chillers and how to address them? http://bbs.hcbbs.com/viewthread.php?tid=390338&highlight= Synthesis Ammonia Process Technology Exchange Area【Daily Question 2009-02-14】For the refining position (copper melt method), what are the reasons for low pressure at the inlet of the copper pump, and what are the solutions? http://bbs.hcbbs.com/thread-389713-1-1.html This post was last edited by jindin312 on 2009-2-15 19:12 ]
Serial Number | Pipe Name | Pipe Size
1 | Oil outlet to copper tower inlet | Φ102×14
14 | Copper melting tank outlet to lower heater inlet | Φ159×52
15 | Copper tower outlet to copper separation unit inlet | Φ102×14
16 | Lower heater outlet to settler inlet | Φ159×53
17 | Copper melt from copper tower to pressure reducing valve inlet | Φ68×10
18 | Settler outlet to external spray water cooler | Φ159×54
19 | Pressure reducing valve outlet to upper reflux tower inlet | Φ159×5
20 | External spray water cooler outlet to filter inlet | Φ159×5
21 | Upper reflux stream outlet to heat exchanger | Φ159×5
22 | Horizontal cooler outlet to ammonia inlet cooler inlet | Φ159×5
23 | Heat exchanger outlet to lower heater | Φ159×5
24 | Filter outlet to copper melt horizontal cooler | Φ159×5
25 | Lower heater outlet to lower reflux tower | Φ159×5
26 | Copper melt ammonia cooler outlet to buffer tank | Φ159×5
27 | Lower reflux tower outlet to upper heater | Φ159×5
28 | Buffer tank outlet to copper pump inlet | Φ159×5
29 | Regenerator outlet to copper melting tank inlet | Φ159×5
30 | Copper pump outlet to copper tower inlet | Φ102×14
31 | Regenerated gas outlet to ammonia washing tower inlet | Φ325×8
32 | Liquid ammonia from small tank into copper melting tank | Φ32×3.5
33 | Ammonia washing tower outlet to gas holder inlet | Φ273×11
34 | Liquid ammonia from small tank into copper melt ammonia cooler | Φ57×3.5
35 | Gaseous ammonia to ice maker main pipe | Φ219×10
36 | Steam (hot water) inlet to upper heater | Φ89×4.5
37 | Low-pressure copper pump into system pipeline | Φ57×3.5
This is a list of the process pipes in a refining system from a certain company; it’s provided for reference.
1 | Oil outlet to copper tower inlet | Φ102×14
14 | Copper melting tank outlet to lower heater inlet | Φ159×52
15 | Copper tower outlet to copper separation unit inlet | Φ102×14
16 | Lower heater outlet to settler inlet | Φ159×53
17 | Copper melt from copper tower to pressure reducing valve inlet | Φ68×10
18 | Settler outlet to external spray water cooler | Φ159×54
19 | Pressure reducing valve outlet to upper reflux tower inlet | Φ159×5
20 | External spray water cooler outlet to filter inlet | Φ159×5
21 | Upper reflux stream outlet to heat exchanger | Φ159×5
22 | Horizontal cooler outlet to ammonia inlet cooler inlet | Φ159×5
23 | Heat exchanger outlet to lower heater | Φ159×5
24 | Filter outlet to copper melt horizontal cooler | Φ159×5
25 | Lower heater outlet to lower reflux tower | Φ159×5
26 | Copper melt ammonia cooler outlet to buffer tank | Φ159×5
27 | Lower reflux tower outlet to upper heater | Φ159×5
28 | Buffer tank outlet to copper pump inlet | Φ159×5
29 | Regenerator outlet to copper melting tank inlet | Φ159×5
30 | Copper pump outlet to copper tower inlet | Φ102×14
31 | Regenerated gas outlet to ammonia washing tower inlet | Φ325×8
32 | Liquid ammonia from small tank into copper melting tank | Φ32×3.5
33 | Ammonia washing tower outlet to gas holder inlet | Φ273×11
34 | Liquid ammonia from small tank into copper melt ammonia cooler | Φ57×3.5
35 | Gaseous ammonia to ice maker main pipe | Φ219×10
36 | Steam (hot water) inlet to upper heater | Φ89×4.5
37 | Low-pressure copper pump into system pipeline | Φ57×3.5
This is a list of the process pipes in a refining system from a certain company; it’s provided for reference.
The main problems that can arise in the configuration of the inlet and outlet pipes for copper pumps are as follows: 1. The pipe diameter is chosen to be too small, resulting in a high flow rate of the copper liquid and thus high local resistance. 2. The inlet pipe is now in a “U” shape, preventing air accumulation from being discharged. 3. The absence of an inlet buffer cylinder hinders exhaust, causing the copper pump to easily pick up air during operation. 4. The use of elbow bends and small-radius elbows in the outlet pipe causes vibration in it. 5. The outlet pipe is not securely fixed, so vibrations cannot be effectively eliminated.