English — Forum #723 (Page 548/642)

1. How is finished oil sampling carried out at various refineries? - HCBBS Forum
2. Low-pressure depropanizer - HCBBS Forum
3. How do I calculate filling a heat exchanger with nitrogen? Need help? - HCBBS Forum
4. The World Championships are bustling, while the sports section is deserted. - HCBBS Forum
5. Chemical loading system solution - HCBBS Forum
6. Weekly topic: 5 Wealth points for correct answers, 2 Wealth points for participation； Question 159 - HCBBS Forum
7. Regarding the material selection for flange nuts and bolts - HCBBS Forum
8. 【Daily Question】Chemical Engineering Principles 157: Filtration Media (August 30) - HCBBS Forum
9. National V technology for high-sulfur stable gasoline production - HCBBS Forum
10. Two difficult problems with the pump; urgent. - HCBBS Forum
11. I would like to ask what the purpose is of installing a separate preheating pipeline for the Texaco gasifier - HCBBS Forum
12. Does white oil need to be stored in a floating roof tank? Urgent urgent urgent - HCBBS Forum
13. H.E strength verification - HCBBS Forum
14. May I ask about the maximum filling capacity for tank trucks (hazardous **)? - HCBBS Forum
15. The issue of the clear height for pipe racks passing through the reservoir area - HCBBS Forum
16. Welding rod consumption - HCBBS Forum
17. Equipment purchase cost and installation costs - HCBBS Forum
18. What qualifications are required for air conditioning maintenance? - HCBBS Forum
19. Installation location of the circulating water control valve - HCBBS Forum
20. 【Daily Question】Multiple-choice question on August 27: Tower knowledge (2 wealth points for replying, plus additional 3–8 wealth points for getting it right) - HCBBS Forum
21. Is automatic control needed for the reactor at 60 degrees Celsius? - HCBBS Forum
22. It’s so quiet here - HCBBS Forum
23. Space furnaces are in full swing! - HCBBS Forum
24. What are the impurities in natural water? - HCBBS Forum
25. Solid content of slurry - HCBBS Forum
26. Reflux flow of the distillation column - HCBBS Forum
27. Selection of pressure nodes for flow rate limitation and pipe diameter calculation in the oxygen regulator squadron - HCBBS Forum
28. Accident Handling 2**: What are the common faults of one-way air nozzles in circulating fluidized bed boilers? - HCBBS Forum
29. How to quickly identify the cause of crane equipment failures - HCBBS Forum
30. Design of chemical process pipelines - HCBBS Forum
31. Heating medium for jacketed reactor - HCBBS Forum
32. Is a self-generated electricity technician certificate required? - HCBBS Forum
33. Heating issue of lye tank - HCBBS Forum
34. How is the specific stress on the ear seat calculated? - HCBBS Forum
35. What are the advantages of a circulating cooling water system compared to a direct-flow cooling water system? - HCBBS Forum
36. Seeking help from all the masters - HCBBS Forum
37. Which company’s liquid chlorine facility is fully enclosed? Let’s talk about the advantages and disadvantages of fully enclosed liquid chlorine plants - HCBBS Forum
38. 【Daily Question】Question from Issue 20150829 - HCBBS Forum
39. Mechanical fit issues - HCBBS Forum
40. TRICON system issues - HCBBS Forum
41. Transfer of parent company’s design qualifications - HCBBS Forum
42. Design and technical support - HCBBS Forum
43. Market trends of caustic soda on August 19 - HCBBS Forum
44. Boiler Basics Question 6: Glossary Explanation: (A certain score will be given to the top 30) - HCBBS Forum
45. Electrodesalination backwash process - HCBBS Forum
46. What types of systems is the NRTL-RK thermodynamic equation suitable for? - HCBBS Forum
47. Thiopropionic acid - HCBBS Forum
48. There is a total leakage in the safety valves of the methanol cracking hydrogen production pipeline – is there any good solution? - HCBBS Forum
49. How to learn the Siemens S7-300 quickly? - HCBBS Forum
50. Selection of steam pipeline materials - HCBBS Forum
51. How is the model of ion exchange resin generally indicated? - HCBBS Forum
52. Was online water flushing successfully implemented for the first time in X Petrochemical’s coking distillation tower? - HCBBS Forum
53. Parameter variations of the shrinkage tube - HCBBS Forum
54. Regarding pipe penetration through fire dikes in tank areas - HCBBS Forum
55. Compatibility issues between CAD Worx and CAD 2016 - HCBBS Forum
56. How to measure water hardness? Iron ions in water? - HCBBS Forum
57. Can the detailed design be used for construction? - HCBBS Forum
58. 【Daily Question】Chemical Engineering Principles 148: Steady Flow (August 21) - HCBBS Forum
59. Boiler Foundation Questions 9: Glossary Explanations: (A certain score will be given to the top 30) - HCBBS Forum
60. Installation of drain valves before and after the instrument control valve - HCBBS Forum
61. What is the typical distance between a single-flange level gauge and the equipment base plate? - HCBBS Forum
62. Why do 316L stainless steel and titanium possess corrosion resistance in urea production? - HCBBS Forum
63. Boiler Foundation Questions 5: Glossary Explanations: (A certain score will be given to the top 30) - HCBBS Forum
64. Chemical Engineering in Daily Life – Question 38: When using the air conditioner in the bedroom at night, is it better to have a low temperature and low wind speed, or a high temperature and high wind speed? - HCBBS Forum
65. What requirements should be considered in the design of tower equipment? - HCBBS Forum
66. The manufacturing process of SK EPDM rubber in Ningbo - HCBBS Forum
67. Case study of sulfuric acid economizer failure - HCBBS Forum
68. Fully compliant treatment technologies for acid production from pyrite and acidic waste gas generated in smelting processes - HCBBS Forum
69. How to replace the pipeline behind the safety valve during pipeline replacement? - HCBBS Forum
70. Help: How should this be designed? - HCBBS Forum
71. Seeking advice on control laws - HCBBS Forum
72. Seeking help with pump selection - HCBBS Forum
73. Safety production responsibility system and occupational health responsibility system - HCBBS Forum
74. The company is going through major changes – the quality control department has been abolished. Is this reliable? - HCBBS Forum
75. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 286 - HCBBS Forum
76. The workplace is like a battlefield; how to beware of villains - HCBBS Forum
77. Winter operation issues of wastewater pretreatment + biological treatment + advanced treatment - HCBBS Forum
78. How to explain a total pressure heat exchanger - HCBBS Forum
79. The severe accident that occurred in Tianjin on August 12 has led to the removal of confidentiality from safety assessment documents, and making such documents publicly available will become the norm. - HCBBS Forum
80. Problem-solving in the production process of efficiency-enhancing fertilizers - HCBBS Forum
81. 【Daily Question】Judgment of water pump maintenance requirements on August 25 (+2 for the first 80 participants, +3–8 in wealth for correct answers) - HCBBS Forum
82. Provide examples of non-standard practices in original records - HCBBS Forum
83. Characteristic curve of centrifugal pump - HCBBS Forum
84. Daily Question 2015.8.22 (EIA Discussion): 3 Wealth points for replies, plus 5 Wealth points for correct answers (multiple-choice question) - HCBBS Forum
85. Can the explosion protection rating of solenoid valve 4V310-08 reach BT4? - HCBBS Forum
86. A orifice plate flow meter is used to measure steam, and it still registers flow even when the boiler is shut down. Please explain. Thank you - HCBBS Forum
87. Air compressor airflow issue - HCBBS Forum
88. Why is “Internet+” HSE essential for the safe development of enterprises? 》Series Four: - HCBBS Forum
89. Why won’t I be allowed to upload files that are 9M in size? - HCBBS Forum
90. 【20150823】 - HCBBS Forum
91. Oxygen detector calibration - HCBBS Forum
92. Hexanediol hydrogenation catalyst manufacturers - HCBBS Forum
93. GB151-2014 - HCBBS Forum
94. Chemical Engineering in Daily Life – Question 50: On a hot day, when the range hood is turned on, an unpleasant odor fills the hallway. Why? - HCBBS Forum
95. 【Daily Question】Question from Issue 20150822 - HCBBS Forum
96. Regarding the selection of cables - HCBBS Forum
97. How to deal with sulfur blockage in the flue gas during titanium dioxide production - HCBBS Forum
98. 【Daily Question】Question from Issue 20150820 - HCBBS Forum
99. Selection of safety valves on the outlet pipeline of metering pumps - HCBBS Forum
100. Distillation operation - HCBBS Forum