English — Forum #723 (Page 13/642)

1. 【Weekly Topic】What are the items for random inspections of on-site welding quality in boilers? (All participants receive a financial reward) - HCBBS Forum
2. How is PID created? Part 1: Piping instrumentation and P&ID design for centrifugal pumps p01【Video】 - HCBBS Forum
3. What does the model IS50‑32‑200B centrifugal pump mean? 【Video】 - HCBBS Forum
4. Talk about ABS plastic – [Video] Chemical Industry Weekly, Issue 70 – Polymer Materials Series s04 - HCBBS Forum
5. Things About Chemical Processing Processes [Video] Blown valves in chemical plants b07 - HCBBS Forum
6. Under what circumstances should a company issue a circuit interruption work order? - HCBBS Forum
7. 64 Food safety information list - HCBBS Forum
8. 22.9 List of design and maintenance materials for dust removal and purification equipment - HCBBS Forum
9. What classification does hot work carried out on utility pipelines (such as circulating water, nitrogen, etc.) fall under? - HCBBS Forum
10. Weekly Topic 2.21, Issue 15: Types of Synthetic Water Coolers - HCBBS Forum
11. 【Weekly Question】How can the quality of coke produced by coke ovens that are over 20 years old be ensured? (November 22---November 26) - HCBBS Forum
12. How is the number of ethylene spherical tanks determined? 【Video】Chemical Engineering Knowledge E044 - HCBBS Forum
13. Weekly Topic 2.28, Issue 16: The role of adding alkali in methanol distillation and the location where alkali is added - HCBBS Forum
14. ASME: American Society of Mechanical Engineers - HCBBS Forum
15. Temporary Power Use 013: Summary of Distribution Box Issues Found at the Construction Site - HCBBS Forum
16. For lifting operation 2, special lifting equipment is used to lift the heavy objects; is it still necessary to obtain a lifting operation permit? - HCBBS Forum
17. 【Weekly Question】The link is incorrect - HCBBS Forum
18. 1.0 Mechanical Design Data List - HCBBS Forum
19. Storage and Transportation Technology: [Weekly Topic] 10-12-24 Emission treatment during loading - HCBBS Forum
20. How I Prepare the Process Package [Video] – Material Balance – Chemical Industry Weekly, Issue 75, Gcc03 - HCBBS Forum
21. 【Video】How to determine the installation height of flammable and toxic gas detectors? @ Chemical Industry Chat Every Day AT17 - HCBBS Forum
22. Are there any manufacturers of efficient heat exchangers, and what are the underlying concepts behind them? - HCBBS Forum
23. What Can DeepSeek Do in the Chemical Industry? [Video] Chemical Industry Weekly, Issue 92 - HCBBS Forum
24. Why are there special requirements for the walls and doors of designated hot work areas? - HCBBS Forum
25. Why is it necessary to warm the pipes before starting a steam turbine? [Video] - HCBBS Forum
26. 14.4 Valves (excluding stainless steel) Data List - HCBBS Forum
27. 【Weekly Question 20090817】How to choose instruments for such operating conditions - HCBBS Forum
28. 27.0 Chemical Engineering Software Inventory - HCBBS Forum
29. Basic Data Management in the Management of Chemical Engineering Design Institutes – [Video] – Chemical Engineering Weekly – Issue 7 - HCBBS Forum
30. The Development History of China’s Survey and Design Industry [Video] Chemicals Weekly Talk 01 - HCBBS Forum
31. Talking About Process Simulation – Part 4 [Video] - HCBBS Forum
32. What is the role of the tower top reflux? [Video] - HCBBS Forum
33. Management and Current Status of the Survey and Design Industry [Video] Chemicals Weekly Talk 02 - HCBBS Forum
34. Pipe and Valve Knowledge: [Weekly Topic] What are the commonly used throttling devices in the chemical industry? (12.13---12.20) - HCBBS Forum
35. 【Weekly Question 20090525】Please list the characteristics and application methods of control system communication that you are familiar with - HCBBS Forum
36. Phase 2: One question per Monday - HCBBS Forum
37. 008 List of documents for safety management in construction projects, petrochemical construction, and building construction - HCBBS Forum
38. 22.6 Vacuum equipment information list - HCBBS Forum
39. Polyvinyl Chloride PVC – [Video] Chemical Weekly Talk Episode 57 – s03 - HCBBS Forum
40. 【Weekly Topic】Phase 2: Women’s Day (3-7~3-13) - HCBBS Forum
41. Special thread on online calibration of safety valves 4: Are the seat and disc of the safety valve made of cast iron? - HCBBS Forum
42. 【Weekly Question 200906022】Why do many DCS manufacturers use controllers with low clock frequencies? - HCBBS Forum
43. 2023.8.24 Released 100 sets of commonly used charts for supervision - HCBBS Forum
44. How many years is the validity period of an ATEX certification? - HCBBS Forum
45. Are hoses required for the inlet and outlet of a centrifugal pump? - HCBBS Forum
46. What are the requirements when using fillers? 【Video】 - HCBBS Forum
47. The On-site Instrument Failure Analysis (One question per week) campaign has started! - HCBBS Forum
48. What is a surface condenser, and is there a standard definition? - HCBBS Forum
49. 1.9 List of lubrication fault diagnosis and troubleshooting materials - HCBBS Forum
50. 29.2 List of Quality Documents - HCBBS Forum
51. What is grounding? Basic knowledge for instrument technicians Ay04 4【Video】Chemical Industry Weekly, Issue 60 - HCBBS Forum
52. What are the filling volume and liquid level alarm settings for ethylene spheres? 【Video】 - HCBBS Forum
53. One question per week) (Issue 1) - HCBBS Forum
54. How to adjust the clearance of the thrust bearing? 051【Video】 - HCBBS Forum
55. What is catalyst deactivation and regeneration? 【Video】 - HCBBS Forum
56. What type of field instruments should be used in the ethylene sphere tank area? 【Video】 - HCBBS Forum
57. Air separation oxygen production area: [Weekly Topic] Week 9 of 2011——How to avoid the impact of deploying the argon system on the main tower - HCBBS Forum
58. 15.3 Methanol-to-gasoline information list - HCBBS Forum
59. The requirements specified in the HG codes and those specified in the SH codes should be combined into one【Video】Chemical Industry Weekly, Issue 42 - HCBBS Forum
60. 【Weekly Question】Closed 2010-11-11 Practical Simulation for Pump Selection (II) - HCBBS Forum
61. Complete the UID in four phases【Video】Phase 2: Public Works Allocation System - HCBBS Forum
62. China Construction Safety Production Series Warning Videos – “The Defense Line” (63 episodes) - HCBBS Forum
63. On the division of tasks in chemical plant process pipelines [Video] - HCBBS Forum
64. 2.6 Mechanical Manufacturing Inspection, Measurement, Metrology, Quality Control, Bill of Materials - HCBBS Forum
65. Posting for collecting questions for the “One Question per Week” activity in the Engineering Management Area; financial rewards are available for participants, so all friends are encouraged to take part... - HCBBS Forum
66. Released on 8/24/2023: Construction Organization Plans and Plan Database of China State Construction First Engineering Bureau - HCBBS Forum
67. Why do the three major oil companies rarely recruit from the general public? -[Video] Chemical Industry Weekly, Issue 51 - HCBBS Forum
68. What is compression ratio? What is compression ratio? 【Video】 - HCBBS Forum
69. Key points for the installation and routine inspection of silencers in chemical plants【Video】 - HCBBS Forum
70. What is the working principle of a thermosyphon reboiler? 【Video】 - HCBBS Forum
71. One question per week: Processing and applications of flame-retardant polymer materials - HCBBS Forum
72. Talk about pneumatic diaphragm pumps [Video] Chemical Industry Weekly, Issue 83 – the “Pumps” series, Pu07 - HCBBS Forum
73. Weekly Topic 10.12.20 Issue 8: Causes and solutions for liquid slugging (vibration) in methanol distillation coolers? - HCBBS Forum
74. Why are hot work operations considered high-risk tasks? Where do the risks associated with such operations arise? Incentives for participation - HCBBS Forum
75. What is saturated water, saturated steam, and superheated steam? 【Video】 - HCBBS Forum
76. A set of bearing standards and specifications was released on 2/18/2023 – first posted on the forum - HCBBS Forum
77. Is it acceptable to use polystyrene foam insulation and rock wool insulation for the refrigeration pipes? - HCBBS Forum
78. When threading the end of a pipe or cutting it, it should be clamped and kept horizontal; why shouldn’t the processing speed be too fast? - HCBBS Forum
79. What is backmixing? [Video] - HCBBS Forum
80. Storage and Transportation Technology: [Weekly Topic] 10-11-26～28 How to repair roof tears in storage tanks? - HCBBS Forum
81. A batch of warning education videos on accident cases was released on September 19, 2023 - HCBBS Forum
82. Installation of safety valves on chemical processing equipment 【Video】Chemical Industry Weekly 28 - HCBBS Forum
83. 1.26 Steel structure data list - HCBBS Forum
84. What is the difference between vertical heat exchangers and floating-head heat exchangers? 【Video】 - HCBBS Forum
85. One question per week; answers win prizes. Question 3 from Chlor-alkali Chemistry (Basic Chemical Engineering Knowledge) - HCBBS Forum
86. Part 2: Installation of flame arrestors – those special pipe fittings we pursued together over the years d02【Video】 - HCBBS Forum
87. What is the DCS alarm deadband? What is its purpose? 【Video】@ChemicalTalkEveryDay AT07 - HCBBS Forum
88. Talking about the Modern Corporate System – [Video] Chemicals Weekly, Issue 36 - HCBBS Forum
89. Piping and Valve Knowledge: [Weekly Topic] What are the requirements for hot-bent and cold-bent pipes? (12.26---12.31) - HCBBS Forum
90. 21.5 Mine and coal mine data list - HCBBS Forum
91. A set of road construction standards was released on 11.1.2023 - HCBBS Forum
92. [Weekly Topic] What is the difference between pipeline materials 20, 20g, and 20G? - HCBBS Forum
93. 【Weekly Question 20090706】Please share your knowledge regarding the installation requirements and on-site conditions of control systems you are familiar with - HCBBS Forum
94. 15.3 Methanol-to-gasoline information list - HCBBS Forum
95. 【Weekly Question 20090615】How to evaluate an excellent control room? - HCBBS Forum
96. What are the basic requirements for proper operation of pressure vessels? 【Video】@ChemicalKnowledgeE020 - HCBBS Forum
97. Environmental Protection Zone “Weekly Topic” 2010-11-3-1 - HCBBS Forum
98. 69 List of safety documents for painting operations - HCBBS Forum
99. One question per week: Basics of polymers – What are the similarities and differences between crystallization and amorphous behavior in polymers during cold drawing? - HCBBS Forum
100. Production facility: Is antifreeze needed for the steam system? [Video] - HCBBS Forum