English — Forum #723 (Page 588/642)

1. Aspen and fine chemicals - HCBBS Forum
2. MSS SP-97 branch fitting - HCBBS Forum
3. The characteristics of the existing ammonia synthesis processes - HCBBS Forum
4. Management Measures for Semi-finished Products - HCBBS Forum
5. Seeking knowledge on instrument selection - HCBBS Forum
6. What does “strap” mean in pipe fittings, and how is it translated? - HCBBS Forum
7. Is there a compilation of accident cases that occurred during pressure tests? - HCBBS Forum
8. Why do I need to enter a verification code when posting now? - HCBBS Forum
9. Abnormal operation of the hydrogen sulfide stripping tower in the diesel-oil mixed hydrogenation unit led to unsatisfactory copper sheet corrosion levels in the refined naphtha - HCBBS Forum
10. Issues regarding the steam turbine condenser exhaust safety valve - HCBBS Forum
11. Food topic 22 – Tomorrow is the Start of Summer; what interesting customs are there in different places? - HCBBS Forum
12. Selection of electrically driven large-diameter butterfly valves for ventilation - HCBBS Forum
13. What does lightly alkylated oil refer to? - HCBBS Forum
14. How are the performance of ABB’s pressure and differential pressure transmitters? - HCBBS Forum
15. What is the maximum volume of an open-type enamel reactor? - HCBBS Forum
16. What is the function of the turbine box on the valve? - HCBBS Forum
17. Briefly describe the start-up and stop procedures for an exhaust fan equipped with an inverter? - HCBBS Forum
18. Seeking advice on bearing installation issues - HCBBS Forum
19. It is specified in which standard or document that factory fire water tanks and circulation tanks cannot be built together? - HCBBS Forum
20. Maoming 3 million tons of diesel hydrogenation - HCBBS Forum
21. Online cleaning of the cold exchanger in the ammonia synthesis system? - HCBBS Forum
22. What should we do in team building? - HCBBS Forum
23. How to prevent explosions in systems containing hydrogen and oxygen? - HCBBS Forum
24. 【Daily Question】Question from Issue 20150727 - HCBBS Forum
25. Main fan outlet flow rate - HCBBS Forum
26. Dynamic simulation of the hot nitrogen heating tank - HCBBS Forum
27. Are there any property methods for common operating conditions? - HCBBS Forum
28. I want to measure the temperature of the pipe wall. The pipe is DN20 – are there any good methods for this? - HCBBS Forum
29. Electrode asphalt, modified asphalt, mesophase asphalt, high softening point asphalt, low ash content asphalt, special asphalt - HCBBS Forum
30. purge - HCBBS Forum
31. Dear colleagues in the instrumentation field, does anyone have a comparison table of tank gauges using capacitive and resistive level sensors? - HCBBS Forum
32. The pneumatic diaphragm pump is not working – how can I determine if the diaphragm is damaged? - HCBBS Forum
33. How is AspenTech in terms of testing the Aspen Plus software? - HCBBS Forum
34. Any thermocouple (1/4” of suitable length/type/range) - HCBBS Forum
35. Old and new standards - HCBBS Forum
36. Welding joint issues at the oil and gas feed inlet of the coking distillation tower - HCBBS Forum
37. Will direct discharge from the pump outlet cause overload? - HCBBS Forum
38. A special vehicle operation license, as well as a qualification certificate for special operations related to truck cranes, are required - HCBBS Forum
39. Regarding the design pressures for the shell side and tube side of heat exchangers - HCBBS Forum
40. Selection of wastewater treatment processes for coating (pre-treatment) - HCBBS Forum
41. Recruitment: Beijing Daxin Banglong Technology Co., Ltd. -- Valve Sales -- Hydrogenation Field - HCBBS Forum
42. The functions of trays and packing - HCBBS Forum
43. Industrial wastewater treatment, reuse processes, comparison of reverse osmosis concentration treatment methods - HCBBS Forum
44. Selection of pressure gauges under normal conditions - HCBBS Forum
45. What indicators are commonly used to evaluate the performance of plate towers? - HCBBS Forum
46. How to label an axonometric drawing correctly? - HCBBS Forum
47. At present, for large-scale air separation units, what should be the control range for the temperature rise rate from liquid discharge to reheating to normal temperature? - HCBBS Forum
48. Relationship between the specialty for an intermediate professional title and the undergraduate major - HCBBS Forum
49. Can extending the soft start time of the motor solve the problem of motor startup overload? - HCBBS Forum
50. 【Daily Question】Chemical Engineering Principles 114: Laminar Flow (July 19) - HCBBS Forum
51. Discussion on gasification flushing water - HCBBS Forum
52. Crazy Chinese Super League – Four teams competing for supremacy, all striving to win - HCBBS Forum
53. Problem of feed port position shifting when the distillation feed composition changes! - HCBBS Forum
54. The master is not here; I seek guidance from experts regarding the issue of pump interlock at low pressure - HCBBS Forum
55. Compilation of the special section on the design of occupational disease prevention facilities - HCBBS Forum
56. Issues with starting a two-in-one-with-one-backup reciprocating compressor - HCBBS Forum
57. The three-word mantra for the workplace - HCBBS Forum
58. Notes I took on NPT, PT, G threads, as well as British, American, and metric threads - HCBBS Forum
59. Three-channel burner: interruption of central oxygen for a period of time has an impact on the gasification furnace - HCBBS Forum
60. Handling after the feed oil pump stops vibrating - HCBBS Forum
61. 【Daily Question】July 23: Participants receive 2 wealth points; those who answer correctly get +5 wealth points, with a maximum of +10 wealth points - HCBBS Forum
62. I am heating a pipe, and there is water inside it; will the temperature of the pipe be higher than that of the water? - HCBBS Forum
63. How can one keep a good grip on the budget for new home renovation projects? - HCBBS Forum
64. Project completion acceptance - HCBBS Forum
65. Coal-fired hot blast stove - HCBBS Forum
66. Please have a senior evaluate the translation quality of the operating procedures - HCBBS Forum
67. Volumetric flow rate - HCBBS Forum
68. Why can’t Luchi’s semi-analytical value for carbon dioxide exceed 40 percent? - HCBBS Forum
69. Why is the quality of tap water in Shenzhen so good - HCBBS Forum
70. 【Daily Question】Question from Issue 20150728 - HCBBS Forum
71. Branch connection - HCBBS Forum
72. Regarding the preparation of the “site access requirement” document - HCBBS Forum
73. What is the role of ASPEN PLUS? - HCBBS Forum
74. In-depth removal of calcium and magnesium from chlor-alkali primary brine - HCBBS Forum
75. Treatment of lignite coke wastewater - HCBBS Forum
76. 7 years of experience with control instruments - HCBBS Forum
77. Wet desulfurization (PDS + tannin) is used for gas purification; how to ensure that the hydrogen sulfide content in the gas after desulfurization meets the specified standards - HCBBS Forum
78. Specific contents of the meeting held after the purchase contract for the equipment is signed - HCBBS Forum
79. Sign-in record post dated July 24, 2015 - HCBBS Forum
80. How to weld metal rings - HCBBS Forum
81. Regarding the alkylation unit - HCBBS Forum
82. How to choose a bracket? - HCBBS Forum
83. Job hunting, stress analysis, 6 years of experience, Beijing - HCBBS Forum
84. Problems with compressor installation and piping - HCBBS Forum
85. 【Polypropylene】Discussion on the quality of polypropylene products - HCBBS Forum
86. Temperature connected to the servo level gauge - HCBBS Forum
87. Analysis of the effect of diesel hydrodesulfurization - HCBBS Forum
88. Cooling of the hydrocracking reactor - HCBBS Forum
89. Beam stress analysis - HCBBS Forum
90. How can a one-way water cooling system be modified into a two-way heat exchanger (with cooling water flowing in the tube side and desalinated water flowing in the shell side)? Thank you. - HCBBS Forum
91. Regarding the communication methods between DCS and SIS systems, what are the differences between RS485 and MODBUS, and what other communication methods exist? - HCBBS Forum
92. Liquid methane - HCBBS Forum
93. Regarding the temperature adiabatic index and volume adiabatic index - HCBBS Forum
94. What is a TID number? - HCBBS Forum
95. Methods to reduce the salinity of mine water - HCBBS Forum
96. The vacuum fluctuations in the tower are unstable; what causes such large fluctuations? - HCBBS Forum
97. Have you ever questioned the **analysis criteria – those marked with “GB”? - HCBBS Forum
98. Regarding the management of as-built documents and design changes, how can we ensure consistency between the as-built documents and the actual installation site! - HCBBS Forum
99. Valve issue - HCBBS Forum
100. How should storage tanks with internal floating roofs and heating coils, in which the density of the oil is greater than that of water, be processed technically? Please share your opinions - HCBBS Forum