English — Forum #723 (Page 14/642)

1. What is latent heat? Distillation [Video] - HCBBS Forum
2. Air separation oxygen production area: [Weekly Topic] Week 8 of 2011——What is the difference between extracting liquid nitrogen from the lower column and not doing so? - HCBBS Forum
3. Production Technology [Weekly Topic]: Analysis of Personal Injury and Death Accidents (10-12-27~11-1-2) - HCBBS Forum
4. What tasks should be carried out on storage tanks on rainy days? What should be noted during operation? 【Video】 - HCBBS Forum
5. What are the preparatory tasks before igniting a heating furnace? 【Video】 - HCBBS Forum
6. What is a burner? Primary air? Secondary air? 【Video】 - HCBBS Forum
7. 40 List of hidden danger investigation and treatment materials - HCBBS Forum
8. 22.7 Dryer information list - HCBBS Forum
9. If the inlet and outlet valves on one side of the heat exchanger are closed, why must those on the other side be closed as well? 【Video】 - HCBBS Forum
10. What is the critical speed? 【Video】 - HCBBS Forum
11. [Video] How much do you know about the vinyl polyolefin elastomer E-POE? Chemical Industry Chat Daily AT18 - HCBBS Forum
12. It’s not that easy to draw diagrams. Issue 7 [Video] List of process equipment and equipment overview 1 - HCBBS Forum
13. What is the impact of the reflux ratio on distillation operations? 【Video】 - HCBBS Forum
14. Please select the type of technical information related to machinery design and manufacturing that you need to know about and obtain the most - HCBBS Forum
15. 16.2 Gas engineering data list - HCBBS Forum
16. Are there any special requirements for performing hot work in the oxygen production and storage area? - HCBBS Forum
17. How should firework operations be managed in the residential areas and administrative offices within a company’s premises? - HCBBS Forum
18. Problems with propane refrigeration in light hydrocarbon recovery - HCBBS Forum
19. Question of the week: What type of coal is most suitable for various types of gasifiers? - HCBBS Forum
20. 1.13 High-strength bolt design and manufacturing (including failure and analysis) data list - HCBBS Forum
21. 1.14 Reducers, gearboxes – Bill of materials - HCBBS Forum
22. Summary of [Weekly Topics] for the Air Separation Technology Section in 2011 - HCBBS Forum
23. What is the difference between an explosion-proof certificate and a coal safety certificate? - HCBBS Forum
24. What is the accuracy grade? 【Video】 - HCBBS Forum
25. One question per week: Popularizing basic knowledge of polymers – What are the factors that affect the crystallization ability of polymers? - HCBBS Forum
26. 73 List of Contractor Management Documents - HCBBS Forum
27. Issue 4: Static mixers, pipeline gas-liquid separators, special pipe fittings d04【Video】 - HCBBS Forum
28. One question per week; answers win prizes. Question 6 from Chlor-alkali Chemistry (Basic Chemical Engineering Knowledge) - HCBBS Forum
29. How should a backup pump be maintained? What maintenance tasks need to be carried out? 【Video】 - HCBBS Forum
30. Weekly Topic 11.01.15 Issue 11: What are the adjustment methods and reasons for various processes in case of an emergency during methanol production? - HCBBS Forum
31. What is the function of the inter-compressor cooler? 【Video】 - HCBBS Forum
32. List of video materials for the courseware awarded to 149 outstanding figures in safety management at the Provincial Safety Awards - HCBBS Forum
33. Storage and Transportation Technology: [Weekly Topic] 11.30–12.5 Installation of unloading pumps for propylene ships and their parameters - HCBBS Forum
34. What are the characteristics of hydrorefining? 【Video】 - HCBBS Forum
35. What is a high-voltage circuit breaker? 【Video】 - HCBBS Forum
36. What are the solutions to a pump that cannot deliver sufficient flow? 【Video】 - HCBBS Forum
37. Precautions for water, steam, and oil systems in chemical plants during winter 【Video】 - HCBBS Forum
38. 19.0 Fine chemical organic chemical information list - HCBBS Forum
39. Which department is responsible for preparing the lifting operation plan, what elements should it include, and which department is in charge of approving it? - HCBBS Forum
40. Safety inspection: What are the main aspects checked for hot work? 【Video】@ChemicalTalkEveryDay AT24 - HCBBS Forum
41. System Startup (IV): Pipeline Flushing and Purging [Video] - HCBBS Forum
42. What are the safety precautions when using impact drills and electric hammer drills for pipe installation? - HCBBS Forum
43. In situations where multiple gases (vapors) may be present in the working environment, how should gas analysis for hot work be conducted? - HCBBS Forum
44. The lifetime member’s wealth has been completely deducted - HCBBS Forum
45. What are bubble point, boiling point, dew point, and saturated vapor pressure? 【Video】 - HCBBS Forum
46. The basic requirements regarding hot work include descriptions of the area where the work is carried out and the areas surrounding it. What exactly does \"surrounding areas\" refer to? - HCBBS Forum
47. 25.0 List of anti-corrosion materials for stainless steel equipment design and manufacturing - HCBBS Forum
48. What is thermal siphon effect? @Chemical Engineering Knowledge E014 HaiChuan【Video】 - HCBBS Forum
49. What is the task of distillation? 【Video】 - HCBBS Forum
50. NB/SH/T 0425-2023 Method for Determining the Wax Content in Petroleum Asphalt - HCBBS Forum
51. Working principle of canned motors [Video] Chemical Weekly Episode 74: “Pumps” series Pu05-2 - HCBBS Forum
52. Weekly Topic 2011.1.1 Issue 10: The Significance of Using Purchased Methanol for Operation - HCBBS Forum
53. What is the difference between a cold oil pump and a hot oil pump? 【Video】 - HCBBS Forum
54. To support the pilot run of the Daily Question and Weekly Question activities, moderator and expert ratings have been increased - HCBBS Forum
55. Lecture Series on Fluid Mechanics Design of Towers [Video] Episode 7 - Fc07 - HCBBS Forum
56. Request for safety technical requirements for mining lamps used in coal mines according to GB 7957-2023 - HCBBS Forum
57. What is the difference between a surge protector and a lightning arrester? 【Video】@ Chemical Chat Daily AT16 - HCBBS Forum
58. What sections does a distillation column consist of? 【Video】 - HCBBS Forum
59. What are the quality standards for the maintenance of vacuum distillation towers? 【Video】 - HCBBS Forum
60. Can liquids be compressed? 【Video】 - HCBBS Forum
61. MDEA decarburization data - HCBBS Forum
62. Summary index post for the “One Question per Week” section in the control system forum - HCBBS Forum
63. Why must not the gear ring inside the valve, which is used to adjust the reset pressure, be pulled out while performing a pressure relief valve testing? - HCBBS Forum
64. What principles should be followed in standard setting - HCBBS Forum
65. On-site instrument failure analysis (one question per week): Question 12 - HCBBS Forum
66. Post for the “One Question per Week” (difficult problem-solving) activity in the process design area; participants receive financial rewards – everyone is encouraged to take part! - HCBBS Forum
67. Series where diagrams are not easy to draw [Video] Episode 9: Pipe Tables and Pipe Property Tables - HCBBS Forum
68. Issues related to the utilization of low-temperature heat - HCBBS Forum
69. One question per week (1) - HCBBS Forum
70. Process Design: [Weekly Topic] 3-12～20 Why is the rich gas sent to the condensate tank before entering the catalytic absorption and stabilization unit? - HCBBS Forum
71. Production Technology [Weekly Topic]: Accident Analysis (10-11-22~28) - HCBBS Forum
72. Project management plans to launch a weekly question activity; a post is available for collecting question sources - HCBBS Forum
73. 12. Weekly Topics on Ammonia Synthesis Knowledge 19 - HCBBS Forum
74. Structure, operating conditions, and features of the XL pump 【Video】Chemical Industry Weekly, Issue 59, Pu03 - HCBBS Forum
75. What should be noted when operating valves? 【Video】Chemical Engineering Knowledge 042 - HCBBS Forum
76. Why is it strictly prohibited to tie the rope loops around the valve’s handwheel and handwheel housing when lifting the valve? - HCBBS Forum
77. 3 Instruments and Meters: 【One Question per Week】Discussion Question for Week 7 of 2011 (Prizes for Participation) - HCBBS Forum
78. Can hoses be used to connect pipes in chemical plants? 【Video】@ Chemical Talk Every Day AT08 - HCBBS Forum
79. What is empty tower velocity? 【Video】 - HCBBS Forum
80. Contract Management in the Organization and Management of Chemical Engineering Design Institutes – [Video] – Chemical Weekly Talk, Issue 6 - HCBBS Forum
81. How to determine if a thermocouple is faulty? 【Video】 - HCBBS Forum
82. How do you handle shift rotations at your factory? 【Video】 - HCBBS Forum
83. On-site instrument failure analysis (one question per week) – Question 8 (answers released) - HCBBS Forum
84. Seek SY/T6168-2009 reservoir classification - HCBBS Forum
85. 21.1 Polycrystalline silicon new energy power generation information list - HCBBS Forum
86. System Commissioning (V): Airtightness Test and Nitrogen Purging 【Video】 - HCBBS Forum
87. What is the sealing principle of flange connections? 【Video】Chemical Engineering Knowledge E004 - HCBBS Forum
88. The Development of Drawing Techniques in Design Institutes [Video] Chemical Industry Weekly, Issue 3 - HCBBS Forum
89. A new set of standards was released on June 24, 2023 – first published on the forum - HCBBS Forum
90. b02 Matters Related to Chemical Processing Processes [Video] Episode 2: Design Pressure and Design Temperature of Pipes - HCBBS Forum
91. My Story in the Chemical Industry – My First Encounter with a Chemical Plant Was with a Large State-Owned Enterprise [Video] - HCBBS Forum
92. What are the potential risks during the ground-breaking process? - HCBBS Forum
93. 1.4 List of connection and fastening and standard parts information - HCBBS Forum
94. Why do unfiltered air ducts prone to freezing in winter? [Video] - HCBBS Forum
95. 14.2 Preliminary Design Bill of Materials - HCBBS Forum
96. How is PID created? 【Video】Episode 11: Piping and Instrumentation Diagram of Compressors (2) p11 - HCBBS Forum
97. Is hot work conducted in warehouses storing flammable and explosive materials managed as special-grade hot work? - HCBBS Forum
98. Instruments: [One Question per Week] Fourth Week of 2011 - HCBBS Forum
99. Why is it necessary to emphasize that when performing hot work inside the fire dike of an oil and gas storage area, water removal (isolation) and sampling operations should not be carried out simultaneously? - HCBBS Forum
100. Criteria for distinguishing between coarse filters and fine filters [Video] - HCBBS Forum