English — Forum #723 (Page 397/642)

1. Is the vacuum fluctuation of the turbine shaft seal normal? - HCBBS Forum
2. There are rewards for those who participate in the discussion regarding the construction of fire control rooms - HCBBS Forum
3. 【Daily Question】1.9 True or False: The intensity of the rotten egg smell of H2S is directly proportional to its concentration - HCBBS Forum
4. Regarding the displacement probe issue - HCBBS Forum
5. The temperature of the boiler bottom ash pipeline with DN350 diameter is 300°; expansion joints are installed vertically, and the pressure is 0.5 kg/cm2 - HCBBS Forum
6. A question regarding obtaining the A2 design certificate and manufacturing certificate for a unit - HCBBS Forum
7. Problems with the coagulation+SBR water treatment method - HCBBS Forum
8. Pneumatic V-ball valve - HCBBS Forum
9. What is the professional translation for Collective fall protection? - HCBBS Forum
10. Does anyone have a risk assessment report for liquid ammonia storage tanks? Could you send one? - HCBBS Forum
11. 【Daily Topic】【Storage & Transportation Edition 20160107】 - HCBBS Forum
12. Deoxygenation of coke oven gas - HCBBS Forum
13. Pressure relief valve model - HCBBS Forum
14. Problems with the acetic acid distillation tower - HCBBS Forum
15. On the unit’s shaft power“~” - HCBBS Forum
16. The reactor uses a weight-loaded valve, while the regenerator employs an air valve; when adding chemicals during the startup of the unit, how should the addition rate be controlled in order to reduce... - HCBBS Forum
17. Problems with U-tube fins and tubes - HCBBS Forum
18. 【Daily Question No. 55】December 29, 2015: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
19. Safety considerations for the use, handling, and storage of gases - HCBBS Forum
20. Calculation of the air delivery volume of a reciprocating compressor - HCBBS Forum
21. ★Specialized Examination for Chemical Engineering ★ — One question per day (2016-1-4) — Points are awarded for participation - HCBBS Forum
22. What is the hydrogen sulfide content in liquid ammonia? - HCBBS Forum
23. Which portable oxygen content meter is the best? - HCBBS Forum
24. What size cable should be used for a 45KW motor? - HCBBS Forum
25. Seeking help to resolve errors in proII calculations - HCBBS Forum
26. Problems with wedge flow meters - HCBBS Forum
27. Haichuan Thanksgiving Season--Science and Technology Are Wealth 【Workplace Section 008】 - HCBBS Forum
28. What is the current of a 55kw, grade 8 motor? - HCBBS Forum
29. Have you ever seen the lonely tears of fish? - HCBBS Forum
30. Calculation of openings in the oxidation air ducts of the absorption tower - HCBBS Forum
31. 【Daily Topic】【Civil Engineering Version 20160110】 - HCBBS Forum
32. Cultivating a child’s character lies in the details - HCBBS Forum
33. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 412 - HCBBS Forum
34. Seeking information on HIMA systems - HCBBS Forum
35. 【Daily Question】1.3 Determine whether the definition of oxygen corrosion is correct (3 wealth points for a reply; +3 to -8 wealth points if correct) - HCBBS Forum
36. Ordering data sheet for quantitative feeding electronic belt scales - HCBBS Forum
37. Resend 【One Question per Day】1.5 Brief answer question: What is \"wet vacuum distillation\"?” - HCBBS Forum
38. 【Daily Question No. 63】January 11, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
39. Chemical Production Control Room - HCBBS Forum
40. “\"HaiChuan Thanksgiving Season\" —— My First Master [Petroleum Area 015] - HCBBS Forum
41. 2015 Safety Engineer Qualification Standards - HCBBS Forum
42. 【Repost】 Progress of the Heimaotao Coal Chemical Project in Inner Mongolia - HCBBS Forum
43. Seeking help with cable selection - HCBBS Forum
44. 【Basic Knowledge 29】General Corrosion (Quiz with Prizes) - HCBBS Forum
45. Show off my wealth - HCBBS Forum
46. Pressure testing of pneumatic control valves - HCBBS Forum
47. Design and manufacturing issues of reinforced polypropylene tower equipment - HCBBS Forum
48. Pump dry gas seal (nitrogen) flow consumption - HCBBS Forum
49. I’d like to ask how often do people typically clean the crude benzene tanks? - HCBBS Forum
50. Multiple-choice questions; all participants will receive a prize. - HCBBS Forum
51. 【Daily Topic】【Civil Engineering Version 20160107】 - HCBBS Forum
52. Protection of special equipment in winter - HCBBS Forum
53. 【Safety and Environmental Protection Section】Monthly rewards for active members – Half-year summary - HCBBS Forum
54. What does it mean that specific users can download attachments? - HCBBS Forum
55. Synthesis solvent for diethyl diphenyl Quinoline disulfide - HCBBS Forum
56. KVVRP control cable, issue regarding the distance to the hardwired DCS. - HCBBS Forum
57. How to get in touch with potential clients? - HCBBS Forum
58. What is a calorimeter, how does it work, and in what areas is it mainly used? - HCBBS Forum
59. Calculation of local loads on container nozzles - HCBBS Forum
60. What does PO mean in the stream code of the UOP hydrocracking process package? - HCBBS Forum
61. deoxidized water - HCBBS Forum
62. 【Daily Question】2016 1.4 Multiple-choice question What needs to be determined during the pre-driving process inspection is ( - HCBBS Forum
63. Issues regarding the pH value in the Fenton oxidation method - HCBBS Forum
64. Equipment feeding position - HCBBS Forum
65. How to remove the chelate formed during the determination of vanadium by tantalum reagent extraction spectrophotometry - HCBBS Forum
66. Why is chemical dosing added to the medium-pressure steam drum instead of directly to the deaerator? - HCBBS Forum
67. 【Daily Question No. 58】January 4, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
68. Issues with adding metal linings to pressure vessels in use - HCBBS Forum
69. It’s time to start heating the furnace, but the spring supports haven’t been put into use yet. Should they be installed now? - HCBBS Forum
70. Investigation on the service life of Feluwa high-pressure coal slurry pump hoses, and experience sharing related to planned maintenance - HCBBS Forum
71. Why is the acidic water that comes out of the top of the catalytic fractionation tower milky white after cooling, and why do the iron ion levels fluctuate? - HCBBS Forum
72. The wind blows, and the bell rings - HCBBS Forum
73. 【Weekly Topic】1.11~1.17 Differences between pickling and passivation of carbon steel and stainless steel (automatically +5 points for replies; +3-10 points for financial analysis...) - HCBBS Forum
74. 【Daily Topic】【Civil Engineering Version 20160109】 - HCBBS Forum
75. How to control the ammonia smell during dry ammonium production? - HCBBS Forum
76. Are there any better basic training courses for registering as a chemical engineer? - HCBBS Forum
77. Beijing heat exchanger calculation or production - HCBBS Forum
78. Zhejiang Hengyi Group’s overseas project in Brunei - HCBBS Forum
79. Which provisions of API 671 are beyond the capabilities of many domestic manufacturers? - HCBBS Forum
80. Unipol PE related parameters - HCBBS Forum
81. 【Daily Question】January 6, 2016: Participation +2 Wealth； +3 to 8 wealth for correct answers - HCBBS Forum
82. Who has the Word version of NB/T47013.2005? - HCBBS Forum
83. It’s that time of year again for year-end reviews – is it really meaningful? - HCBBS Forum
84. What is the difference between sulfides and thiols in liquefied gas? - HCBBS Forum
85. Purchase of 500,000 tons of methanol; hope to discuss this with everyone - HCBBS Forum
86. Civil Engineering Structure Discussion Area ---- [Daily Question] Question from Issue 20151230 - HCBBS Forum
87. Looking for information on naphtha isomerization - HCBBS Forum
88. [Repost] Liyuan Group: Extending the industrial chain and transitioning toward new-type coal chemical industry - HCBBS Forum
89. Must the wastewater from ammonia synthesis be recycled? - HCBBS Forum
90. Can’t the alarms in SIS be seen on the DCS? - HCBBS Forum
91. The sludge in the anaerobic tank is light yellow – why doesn’t it turn black? - HCBBS Forum
92. Should a drain valve be a threaded valve or a flanged valve? - HCBBS Forum
93. 【Joint Study*】【HVAC Version 20151229】 - HCBBS Forum
94. Regarding the flash tank - HCBBS Forum
95. Heat treatment issues of 12Cr1MoVG furnace tubes - HCBBS Forum
96. 【Daily Question】January 8, 2016: Boiler Basics True/False Questions (Top 50 responders receive +3 wealth points; those who get it right earn an additional +3 to +8 wealth points) - HCBBS Forum
97. Steam-soda separator - HCBBS Forum
98. Regarding the return oil line of the quick-shut valve - HCBBS Forum
99. Could you recommend some plastic valve manufacturers in China’s chemical industry? - HCBBS Forum
100. Bertho Radioactive Level Gauge Manual - HCBBS Forum