English — Forum #723 (Page 522/642)

1. Home Life Edition Debate Thread, Issue 31: Should seatless train tickets be discounted? (Participate in replies +3 wealth points) - HCBBS Forum
2. What are the disadvantages of a floating valve tower due to its structural characteristics? - HCBBS Forum
3. Can a pressure vessel manufacturer sell only the cylinder separately? - HCBBS Forum
4. The Asian Championship has begun; hoping the men’s basketball team will achieve a successful start - HCBBS Forum
5. On some pipelines, the sewage outlet is placed either in front of the pump or behind it – what is the basis for this? - HCBBS Forum
6. With the economic downturn and rising costs, how many companies are left in the synthetic ammonia industry? - HCBBS Forum
7. Differences between hot-dip galvanized bolts and ordinary galvanized bolts - HCBBS Forum
8. Who has a collection of papers on oil refining and hydrogenation technologies published in Harbin? - HCBBS Forum
9. Weekly topic: 5 wealth points for those who answer correctly, 2 wealth points for those who participate； Question 175 - HCBBS Forum
10. Constant-level oil cup - HCBBS Forum
11. Do Class A, B, and C workshops and warehouses in chemical plants require an automatic fire alarm system? - HCBBS Forum
12. Regarding the elasticity issue of the device - HCBBS Forum
13. Regarding the installation methods of pressure transmitters - HCBBS Forum
14. The nomadic life of chemical industry workers - HCBBS Forum
15. Processing technology for composite plate tanks - HCBBS Forum
16. 【Daily Question】Chemical Engineering Principles 178: Packing (September 20) - HCBBS Forum
17. Sign-in record post from September 22, 2015 - HCBBS Forum
18. Heat exchanger core extraction issue - HCBBS Forum
19. 【Daily Question No. 17】September 17, 2015: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
20. Common sealing structures for high-pressure vessels – Discussion - HCBBS Forum
21. Can tapered threads PT and pipe threads G be used together? - HCBBS Forum
22. Thread lock ring issue - HCBBS Forum
23. Is the maximum absolute error the smallest scale? - HCBBS Forum
24. 【Daily Question】9.15 Reply +2； To +3 - HCBBS Forum
25. Design issues of negative pressure distillation columns - HCBBS Forum
26. There are problems with polyaluminum chloride - HCBBS Forum
27. Production of 93% acid by drying - HCBBS Forum
28. Briefly describe what the technical parameters are for the mechanisms of crawler cranes - HCBBS Forum
29. What is the volume of the gas at 10KG of water at -0.098MPa and 50°C? How to convert it. I hope someone knowledgeable can answer! - HCBBS Forum
30. Regarding the reflux ratio - HCBBS Forum
31. What is the effect of too high or too low saturation temperature on the gasification process? - HCBBS Forum
32. The transport process of condensed water formed during the cooling of high-temperature gases - HCBBS Forum
33. What is the severity of an axial movement of 5 threads in the pump shaft of a screw unit? - HCBBS Forum
34. A stop signal stops two devices at the same time - HCBBS Forum
35. I want to know which company’s coal quality analysis equipment is of good quality - HCBBS Forum
36. The calculation of the head of a circulation pump - HCBBS Forum
37. Which flow meters require a valve assembly? - HCBBS Forum
38. Weekly topic: 5 Wealth points for those who answer correctly, 2 Wealth points for participation； Question 174 - HCBBS Forum
39. KingView reports are not saved - HCBBS Forum
40. On the tensioning of temporary wind ropes during the installation of tower cranes - HCBBS Forum
41. I have a few questions regarding the storage of residue oil - HCBBS Forum
42. Environmental Protection Daily Quiz: Participate on 9/20 for a prize; an additional reward for those who get it right - HCBBS Forum
43. You know, the mobile app version also allows moderators to manage things? - HCBBS Forum
44. Pressure loss of vortex flow meters - HCBBS Forum
45. What standard is this pipe? - HCBBS Forum
46. Solving the problem of replacing the liquid chlorine vaporizer - HCBBS Forum
47. New member seeking advice: \"The diesel circulation pump has lost pressure – how should it be adjusted?\" The bottom circulation pump of the butane stripping tower has lost pressure – how to adjust it... - HCBBS Forum
48. Replace motor with turbine - HCBBS Forum
49. Problems with the dilution steam generator tower in ethylene plants - HCBBS Forum
50. What are the product parameters of Dongsheng’s DVR-V type combined sealing ring? - HCBBS Forum
51. Repair welding of fire protection brackets for storage tanks - HCBBS Forum
52. Hydrocracking heavy naphtha desulfurizer - HCBBS Forum
53. 【Daily Question】Chemical Engineering Principles 179: Distillation Operations (September 21) - HCBBS Forum
54. 【Daily Question】Question from Issue 20150922 - HCBBS Forum
55. Briefly explain the desalination principle of anion and cation exchangers? - HCBBS Forum
56. 【Daily Question】Question from Issue 20150922 - HCBBS Forum
57. During titration, a small amount of the solution accidentally splashed out of the conical flask - HCBBS Forum
58. Design for liquid chlorine sealed rooms - HCBBS Forum
59. 【Daily Question】September 21: What type of pump uses an outlet valve to regulate flow? - HCBBS Forum
60. Ammonium chlororhodate in ammonia water? - HCBBS Forum
61. Joint Learning*: Judgment on the definition of convective heating - HCBBS Forum
62. When a waste boiler is heated from its original cold state, which has a faster heating rate in winter or in summer? - HCBBS Forum
63. What are everyone’s experiences and questions regarding steam recovery? Welcome to discuss and exchange ideas! ! ! - HCBBS Forum
64. Methods for treating organic waste gas - HCBBS Forum
65. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 306 - HCBBS Forum
66. Dear sea friends, is there anyone who has video tutorials for Caesar2? - HCBBS Forum
67. Transfer pump - HCBBS Forum
68. 【Daily Question】September 15: What is the most prominent feature of a floating valve tower? - HCBBS Forum
69. Simulation of acid gas removal packed tower - HCBBS Forum
70. Is liquid ammonia a flammable medium? - HCBBS Forum
71. 【Daily Question】Question from Issue 20150917 - HCBBS Forum
72. 2011 edition exam materials for Certified Safety Engineers - HCBBS Forum
73. What materials can be used to replace 254SMo? - HCBBS Forum
74. For a jacketed vessel with a vacuum inside the inner cylinder and positive pressure outside, why is the test pressure for the inner cylinder taken as only 1.25 times -0.1? - HCBBS Forum
75. What is the most important thing you want to say today? - HCBBS Forum
76. Leak in the small cover of the synthetic ammonia eDonkey device - HCBBS Forum
77. Brake lever in cranes - HCBBS Forum
78. What type of valves are suitable for circulating cooling water and chilled brine, respectively? - HCBBS Forum
79. Meaningless post - HCBBS Forum
80. What acids are generally present in fuel oil? - HCBBS Forum
81. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 304 - HCBBS Forum
82. What value is appropriate for the K factor of a graphite falling film absorption unit? - HCBBS Forum
83. Can a gasoline tanker be used to transport methanol directly? - HCBBS Forum
84. Analysis of rigid and flexible pipes for central drainage in crude oil storage tanks - HCBBS Forum
85. What documentation is required for the acceptance of steel flange covers? - HCBBS Forum
86. Control of ferric ion levels in gasified graywater - HCBBS Forum
87. Questions for Issue 20150914 - HCBBS Forum
88. Design principles of crane swing reduction systems - HCBBS Forum
89. What are the technical characteristics of gasification in air flow reactors? - HCBBS Forum
90. Alkaline materials are prone to leakage - HCBBS Forum
91. Will bolts used to connect flanges made of different materials cause any reaction? - HCBBS Forum
92. ammonium thiocyanate - HCBBS Forum
93. Detection of the total ester contents of TMPTA, TPGDA, and HDDA - HCBBS Forum
94. What should be noted regarding vacuum pump piping - HCBBS Forum
95. What is the purpose of those gravel stones outside the tank cofferdam? - HCBBS Forum
96. What is the effectiveness of UV photolysis equipment in treating organic waste gases? - HCBBS Forum
97. What are the eccentricity dimensions for various specifications of 2BE water ring vacuum pumps? - HCBBS Forum
98. Request layout diagram for alkylation (acetylene) waste acid pyrolysis regeneration unit - HCBBS Forum
99. Summing RS MACSV system learning* software - HCBBS Forum
100. Hydrogenation accident handling - HCBBS Forum