English — Forum #723 (Page 614/642)

1. Selection of methane gas detectors for the natural gas industry - HCBBS Forum
2. Tables or charts related to the management of rotating equipment - HCBBS Forum
3. Why is there a discrepancy between the on-site shorting of terminals B and C for PT100 and the shorting of terminals B and C inside the DCS cabinet? - HCBBS Forum
4. Do hydrogen sulfide and oxygen react at around 150°C? - HCBBS Forum
5. What are the working principles of a shot blasting machine? - HCBBS Forum
6. How to set Aspen so that it does not generate def, for, and his files, retaining only the apw and bkp files? - HCBBS Forum
7. Carbon monoxide content in coke oven exhaust gas - HCBBS Forum
8. Is there a basis for the installation of manholes and access holes, and what is that basis? - HCBBS Forum
9. Further discussion on the implementation of override control in DCS - HCBBS Forum
10. Why is the fermentation system scaled up in stages - HCBBS Forum
11. The liquid in the iron barrel sprayed out - HCBBS Forum
12. Daily Question 2015.7.2 (EIA Discussion): 3 Wealth points for replies, plus 5 Wealth points for correct answers (single-choice question) - HCBBS Forum
13. Dingyuan Salt Chemicals in Chuzhou, Anhui is recruiting water treatment experts - HCBBS Forum
14. Sulfur-containing wastewater from the atmospheric and vacuum distillation tower tops - HCBBS Forum
15. For the heating of coke oven gas in various types of coke ovens, what is the consumption amount of coke oven gas? - HCBBS Forum
16. What will happen if the pipeline size is chosen too large? - HCBBS Forum
17. Solutions for adjusting the backlash of control valves - HCBBS Forum
18. New user’s question: How to earn wealth points? - HCBBS Forum
19. 【Daily Question】Chemical Engineering Principles 101: The operating line of distillation (July 6) - HCBBS Forum
20. What is the manufacturing cost per ton of gasoline produced from methanol using the MTG process (including depreciation, repairs, and other manufacturing expenses)? ? - HCBBS Forum
21. Condensate oil separation unit: corrosion at the inlet of the air cooler of Tower No. 1 - HCBBS Forum
22. Discussion on Basic Mechanical Issues (Carpenter’s Circular Saw) - HCBBS Forum
23. Does a valve positioner only receive control signals? Feedback opening degree? - HCBBS Forum
24. 【Mechanical Division】2015.7 Technical Team Promotion Application - HCBBS Forum
25. Can they win the championship at this year’s Asian Men’s Basketball Championship? - HCBBS Forum
26. Does anyone know which domestic manufacturers are working on polycarbonate projects? - HCBBS Forum
27. How should the inlet pipeline of the pump be installed, laterally or axially? - HCBBS Forum
28. Water vapor ratio algorithm - HCBBS Forum
29. Hiring Turnaround and Maintenance Planner, Contract Manager, Cost Controller - HCBBS Forum
30. In the production of engineering tires, tire carcass stretching and deformation is a common issue – how should it be addressed? - HCBBS Forum
31. Discussion and requests for help regarding gauge flushing - HCBBS Forum
32. How do rupture disks ensure their effectiveness? - HCBBS Forum
33. Analysis of detailed installation issues for envelope worm gear reducers - HCBBS Forum
34. Thinking of You in the Mountain City in May - HCBBS Forum
35. A question from a beginner about circuits - HCBBS Forum
36. Seeking advice on bypass pipeline setup and safety valve pipeline setup - HCBBS Forum
37. Safety design standards for digital-type instruments and solenoid valves/relays in interlocking systems - HCBBS Forum
38. Could everyone help me analyze whether heat regeneration or regeneration without heat is suitable for my situation? - HCBBS Forum
39. Heat transfer calculation of flue gas condensers - HCBBS Forum
40. Effect of excessive hydrogen during pre-sulfiding of CO sulfur-tolerant shift catalyst - HCBBS Forum
41. Deep hole drilling methods, main steps using a deep hole drilling gun, operating specifications for deep hole drilling machines - HCBBS Forum
42. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 238 - HCBBS Forum
43. [Encyclopedia] Proper use of medical insurance cards - HCBBS Forum
44. Seeking real exam questions and answers for the registered chemical engineer professional examination - HCBBS Forum
45. Copper sulfate processing and production - HCBBS Forum
46. Issues with the connection between pipe flanges and valves - HCBBS Forum
47. Air in the flare pipeline - HCBBS Forum
48. Pressure control of the anode and cathode in diaphragm electrolyzers - HCBBS Forum
49. Search for the specification document for the TOTAl piping specialty - HCBBS Forum
50. Selection of coking wax catalyst for catalytic unit reprocessing - HCBBS Forum
51. Do I have to enter the security question every time I log in? - HCBBS Forum
52. Issues regarding the registration deadline for 2015’s injection molding course - HCBBS Forum
53. Pipeline weld inspection ratio - HCBBS Forum
54. Risk of explosion in the plant for sulfonation reactions - HCBBS Forum
55. Sensor for detecting the piston inside a sealed cylinder barrel - HCBBS Forum
56. They’re doing renovations downstairs, claiming it’s my apartment upstairs that’s leaking – it’s frustrating! - HCBBS Forum
57. Filler-free spray cooling towers and turbine cooling towers - HCBBS Forum
58. Water vapor separation in air separation equipment - HCBBS Forum
59. Water entering the fuel tank of a fuel boiler - HCBBS Forum
60. When the cone calculation determines the required length for the cylinder reinforcement section, can the high-neck flange be considered as the length of the cylinder reinforcement section? - HCBBS Forum
61. As a technician, what are the main things to check on site? - HCBBS Forum
62. The thermal efficiency of the circulating fluidized bed boiler is higher than the design value - HCBBS Forum
63. Leak Path minimum leakage channel size - HCBBS Forum
64. What fantasy contactor, what principle is that? - HCBBS Forum
65. Who has the computer driver for the Yokogawa UT550 optical communicator? - HCBBS Forum
66. I might go into sales for the Turck brand in a while. I don’t know how to get started with business operations; please help me out with some guidance - HCBBS Forum
67. 【Technical Exchange Post】 ---Daily Question (2015-7-6)----Civil Engineering Knowledge (Reply +2, Correct Answer +4) - HCBBS Forum
68. Discussion on vibration in centrifugal compressors - HCBBS Forum
69. Question regarding the installation method of the transmitter, please advise - HCBBS Forum
70. Coking double-flange maintenance? - HCBBS Forum
71. A brief discussion on the development trends of planetary gear reducer transmission technology - HCBBS Forum
72. Operation of the reboiler in the fractionation tower - HCBBS Forum
73. Clearance chamber of reciprocating compressors - HCBBS Forum
74. Waste heat boilers in the petrochemical industry abroad - HCBBS Forum
75. Conversion between nominal and actual volume - HCBBS Forum
76. Difference between half-buried ball valves and fully buried ball valves - HCBBS Forum
77. To prevent registration bots from posting, a login verification code feature has been enabled recently - HCBBS Forum
78. Can the boiler ignition oil pump and the daily-use oil tank be placed together? - HCBBS Forum
79. It’s the weekend; it’s a good time to relax - HCBBS Forum
80. Does the Honeywell PKS have a special card that is used to sense temperature? What is its name? - HCBBS Forum
81. The issue of increased boiling point of water due to hydrostatic pressure - HCBBS Forum
82. After some time of strengthening, can the Cavaliers make it to the finals next season? - HCBBS Forum
83. I need a database in ANSI standard for use in petrochemical design institutes - HCBBS Forum
84. Problem of self-priming pump not delivering flow - HCBBS Forum
85. Seeking 50,000-ton ion exchange membrane idle equipment - HCBBS Forum
86. What is a wire rod? - HCBBS Forum
87. Sounds of personnel evacuation and fire alarms in case of a fire - HCBBS Forum
88. What are all the oxygen-containing compounds included in the products of gasoline hydrogenation units? - HCBBS Forum
89. Copper removal in the second stage of liquid purification process - HCBBS Forum
90. How to tune the PID of a gas compressor - HCBBS Forum
91. Weekly topic: 5 wealth points for those who answer correctly, 2 wealth points for those who participate； Question 100 - HCBBS Forum
92. Balance line of a back-pressure steam turbine - HCBBS Forum
93. Wear of the labyrinth air seal at the exhaust end of the screw compressor - HCBBS Forum
94. Surface energy must be studied in catalysis - HCBBS Forum
95. Does the electric valve open and close slowly? - HCBBS Forum
96. Regarding the issue of the outlet temperature of atmospheric-pressure furnaces, yet another common place with strange phenomena - HCBBS Forum
97. Erlie Resources Desert Ecology Group is seeking a sales manager - HCBBS Forum
98. Some issues regarding chromium-molybdenum steel plates and welding - HCBBS Forum
99. There are discrepancies in the material balance for the environmental impact assessment - HCBBS Forum
100. Merging multiple processes - HCBBS Forum