English — Forum #723 (Page 493/642)

1. 【Weekly Topic】- What types of fillers are used in contact oxidation? - HCBBS Forum
2. Thermal load issues at the top and bottom of the tower - HCBBS Forum
3. Solution to valve naming rules - HCBBS Forum
4. Briefly describe the types and basic structure of methanol synthesis towers? - HCBBS Forum
5. 1111 - HCBBS Forum
6. Conscience in the medical field - HCBBS Forum
7. Coking plant sulfur - HCBBS Forum
8. Converter inlet temperature - HCBBS Forum
9. What are the characteristics of polyalumina as a coagulant? - HCBBS Forum
10. Effect of the distillation column top temperature on changes in the components obtained at the column top - HCBBS Forum
11. Requirements for foundation bearing capacity tests of 1250-ton crawler cranes. - HCBBS Forum
12. Basic Q&A on Safety: What do you think safety management is? - HCBBS Forum
13. Performance testing of WFB vertical self-priming pump - HCBBS Forum
14. Effect of sulfur in ammonia-vaporized wastewater - HCBBS Forum
15. 【Daily Question No. 32】October 14, 2015: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
16. What is the difference between an inverted bucket steam trap and a pilot-operated inverted bucket steam trap? - HCBBS Forum
17. Baffle rod heat exchanger - HCBBS Forum
18. Broken shaft problem in variable-frequency pumps - HCBBS Forum
19. Working principle of rotary joints - HCBBS Forum
20. The sequence for opening the tower manholes after shutting down is from top to bottom - HCBBS Forum
21. What are the advantages and disadvantages of cross-flow towers? - HCBBS Forum
22. Seeking help with Aspen heat exchanger calculations - HCBBS Forum
23. Having been involved in anodic protection for many years, our top-notch colleague H – any suggestions? Flashback to November 23rd - HCBBS Forum
24. Are there software tools for calibrating large-scale equipment such as drying ovens? - HCBBS Forum
25. danger relief area - HCBBS Forum
26. I want to take the Certified Public Accountant exam; I have some questions and would like to ask the seniors! ! ! - HCBBS Forum
27. Can pipeline hydrotesting and small container hydrotesting be carried out simultaneously? - HCBBS Forum
28. How to turn off the update check in CAESARⅡ - HCBBS Forum
29. What inspections and test operations should be carried out on a crane before it leaves the factory? - HCBBS Forum
30. The pressure of propane is increased by heating the propane tank, and this pressure is maintained as it is output. So how is the heating power calculated? - HCBBS Forum
31. What is the relationship between pump flow rate and flow rate in the pump outlet pipe? - HCBBS Forum
32. How to add bed material to the air distribution plate before starting a circulating fluidized bed boiler? - HCBBS Forum
33. Which expert can give me a process flow diagram for ammonia synthesis? - HCBBS Forum
34. Device sliding end - HCBBS Forum
35. Cooking with cola - HCBBS Forum
36. 123 - HCBBS Forum
37. Pipeline leak testing acceptance criteria - HCBBS Forum
38. Pressure issues in tubular heat exchangers - HCBBS Forum
39. Specializing in providing the certificates required for obtaining the second-level qualification for building decoration and renovation projects - HCBBS Forum
40. Seeking a job with 8 years of experience in instrumentation work - HCBBS Forum
41. How to calculate how much heat is conducted and how much steam is produced? It’s better to have a formula - HCBBS Forum
42. Supply of styrene to Yanshan Petrochemical - HCBBS Forum
43. 【Life Survey】4. The truth behind the rumor that kitchen fumes cause cancer (Participate to get +3 Wealth) - HCBBS Forum
44. Why does the stabilizer tower pressure always fluctuate? - HCBBS Forum
45. 【College Activities】048+Crazy Experiences in University Years+yajie0321 - HCBBS Forum
46. Is a gasket still needed if there is a pressure block under the pneumatic control valve? - HCBBS Forum
47. What is the function of a water collector? What are some representative water collectors? - HCBBS Forum
48. How to determine whether a differential pressure transmitter is operating properly in the field? - HCBBS Forum
49. Requirements for drawings in the new GMP audit. - HCBBS Forum
50. Differences between manual stop valves, gate valves, and plug valves - HCBBS Forum
51. For the renovation of the fire dike, can the sleeve be cut in half and then installed? - HCBBS Forum
52. Environmental and Safety Manager, Guangdong – Recommended reward: 500 yuan - HCBBS Forum
53. Special thread on safety measures against freezing and condensation in chemical plants - HCBBS Forum
54. 【Daily Question】Question from Issue 20151012 - HCBBS Forum
55. 【Daily Question】Chemical Engineering Principles 196: Height of Gas Transfer Unit (October 8) - HCBBS Forum
56. 【Daily Question】 10/9/2015: Heat exchanger pipe flanges (First 80 participants + 2 rewards) - HCBBS Forum
57. Determination of the fire hazard classification for aqueous solutions of flammable liquids - HCBBS Forum
58. Questions regarding buried tanks and directly buried tanks - HCBBS Forum
59. How to calculate power; missing conditions can be added by oneself - HCBBS Forum
60. Which brand of compressor offers the best cost-performance ratio? - HCBBS Forum
61. What is the purpose of flow certification for safety valves? - HCBBS Forum
62. The true masters of the world - HCBBS Forum
63. What is the development direction of methanol synthesis towers? - HCBBS Forum
64. I would like to ask the experts here about the breakdown of naphtha - HCBBS Forum
65. 【Daily Question】Question 20: Test question from issue 20151015 (Repeat +2)； For the other +3) - HCBBS Forum
66. In-depth discussion on the troublesome and demanding operating conditions of instruments - HCBBS Forum
67. Regarding the selection of thermodynamics - HCBBS Forum
68. Remarkable Comments on the Four Great Classical Novels - HCBBS Forum
69. Is it necessary to install a chemical dosing system in the boiler? - HCBBS Forum
70. How to remove organic matter from the decarburization solution quickly and effectively? - HCBBS Forum
71. 【Daily Question】Question from Issue 20151013 - HCBBS Forum
72. Slurry pump head calculation - HCBBS Forum
73. Seek an explanation for the flange description - HCBBS Forum
74. How long does it take to initially start up the desalinated water system? - HCBBS Forum
75. Which domestic manufacturers are good at producing steam temperature and pressure reduction devices? - HCBBS Forum
76. Who among the forum members can help find the manual for the Fuji PXV-4 thermostat? - HCBBS Forum
77. What are the reference standards for aligning couplings in rotating equipment? - HCBBS Forum
78. Reasons for the widespread use of pre-fabricated directly-buried insulation pipes - HCBBS Forum
79. Looking for recommended textbooks on fracture mechanics, fatigue, and fracture - HCBBS Forum
80. An explosion occurred during the boiler ignition - HCBBS Forum
81. Warning - HCBBS Forum
82. Why is it important to pay attention to the inlet and outlet flow velocities when selecting a centrifugal pump? - HCBBS Forum
83. When trying to simulate the WINCC program on my own computer, the simulation doesn’t work, with an error message stating that the server is incorrect or something similar - HCBBS Forum
84. What are the different types of fillers for cooling towers? Which one does your factory use? - HCBBS Forum
85. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 328 - HCBBS Forum
86. Is it necessary to stagger the welds of the heating furnace tubes? - HCBBS Forum
87. Seeking help to renovate an old stove - HCBBS Forum
88. Let’s work on Questions 03-2: Multiple-choice questions 11-12 from the 2015 First-Class Constructor Examination on Laws and Regulations - HCBBS Forum
89. Which companies are currently capable of providing wet-process sulfuric acid process packages? - HCBBS Forum
90. Regarding powder conveying, powder silos, and continuous metering - HCBBS Forum
91. What are the methods to prevent temperature increases due to sunlight exposure in Class A storage tanks? - HCBBS Forum
92. The measuring diaphragm in the 1151 transmitter is a metal flat diaphragm, but why is its behavior linear? - HCBBS Forum
93. Calculation of superheated steam heat - HCBBS Forum
94. What special operations does your factory have? - HCBBS Forum
95. 【Daily Question】 October 14th: The fuel involved in the fire is gasoline; which type of extinguisher cannot be used? ? ? ? ? ? ? - HCBBS Forum
96. What else can tetrachloroethane be used to produce besides trichloroethylene? - HCBBS Forum
97. Weekly topic: 5 wealth points for those who answer correctly, 2 wealth points for those who participate； Question 193 - HCBBS Forum
98. Briefly explain the principle of using flotation to remove pollutants from wastewater. - HCBBS Forum
99. Question 55 on boiler foundations, October 8: (A certain score will be given to the top 40) - HCBBS Forum
100. 【Daily Question】Question from Issue 20151015 - HCBBS Forum