English — Forum #723 (Page 396/642)

1. Civil Engineering Structure Discussion Area ---- [Daily Question] Question from the 20151229 issue - HCBBS Forum
2. What is the signal voltage in millivolts between the sensor electrodes of an electromagnetic flowmeter? - HCBBS Forum
3. Pre-treatment with 6-12% sodium chloride or sodium sulfate! ! ! ! ! - HCBBS Forum
4. The thermocouple sleeves often break; please help analyze the reasons and suggest improvement methods - HCBBS Forum
5. Regarding the converter vaporization cooling flue - HCBBS Forum
6. [C2]【Newbie Help】[Rigid] Rigid components - HCBBS Forum
7. Installation locations of the MTO quench tower bottom pump and the water washing tower bottom pump - HCBBS Forum
8. 　　Master the charging method of the power adapter to extend battery life - HCBBS Forum
9. Increase the effective gas composition in the gasifier - HCBBS Forum
10. Filtering precision of the filter - HCBBS Forum
11. Filtration tank - HCBBS Forum
12. 【December 30 Boiler Weekly Question】Multiple-choice question - HCBBS Forum
13. Reliability, Availability, and Maintainability (RAM) training courses for oil and gas, refining, and petrochemical enterprises - HCBBS Forum
14. Ammonia process electrowinning of zinc - HCBBS Forum
15. 【Weekly Topic】1.4~1.10 Why do areas where phase changes occur corrode easily? - HCBBS Forum
16. How are the diameter and height of the desulfurization tower in a dry desulfurization unit determined, and how is the weight of the desulfurizing agent determined? - HCBBS Forum
17. Chlorine safety valve issues - HCBBS Forum
18. ☆Catalytic cracking ☆ Some questions regarding the bed fouling in catalytic units in the Northeast region during winter - HCBBS Forum
19. Is the nominal lifting capacity of the equipment’s lifting lugs the same as the actual lifting capacity it can withstand? - HCBBS Forum
20. [Safety & Environment Section] Summary Post on Haichuan’s “Thanksgiving Season” Campaign - HCBBS Forum
21. Regarding the interlock design logic of the hydrogenation unit, why must the feed pump be stopped after the compressor stops? - HCBBS Forum
22. Temperature of the material at the top of the tower after cooling and return temperature of the cooling water in the condenser at the top of the tower - HCBBS Forum
23. 【Daily Question】1.2 Short-answer question: What is dew point temperature? - HCBBS Forum
24. Let’s talk about the company’s current situation! - HCBBS Forum
25. Damn it, I want to waste money again - HCBBS Forum
26. Does the electrical system of an oxygen station need to be explosion-proof? - HCBBS Forum
27. Haichuan Gratitude Season--My Leader, Brother Wang【Workplace Section 002】 - HCBBS Forum
28. What pressure is required for the purge gas source for new plant pipelines, and what are the precautions? - HCBBS Forum
29. Regarding the sulfur content of the product - HCBBS Forum
30. Here’s a great post - HCBBS Forum
31. Summary of the sulfur market and trends in January and February 2016 - HCBBS Forum
32. Sign-in record post from January 4, 2016 - HCBBS Forum
33. What is the maximum allowable temperature at the compressor inlet? - HCBBS Forum
34. Wastewater treatment: Solutions to the persistent high levels of ammonia nitrogen - HCBBS Forum
35. Which is the cheapest: containers lined with ceramic, PTFE, or glass lining? - HCBBS Forum
36. Who has the laws, regulations, rules related to occupational health and **occupational health standards - HCBBS Forum
37. Interacting with others - HCBBS Forum
38. What are the causes of leaks in the coolers of the hydrogen-handling units in gasoline hydrogenation plants? - HCBBS Forum
39. Boiler - HCBBS Forum
40. What are the common thickness specifications for insulation and cold protection? ? ? ? ? ? ? ? ? ? - HCBBS Forum
41. 【Daily Question】January 5, 2016: Boiler Basics True/False Questions (Top 50 responders receive +3 wealth points; those who get it right earn an additional +3–8 wealth points) - HCBBS Forum
42. Black water, how to deal with it - HCBBS Forum
43. I would like to ask: in the MDI production process using the phosgene synthesis method, what is the amount of salt acid generated as a by-product? - HCBBS Forum
44. Rosemount pressure transducer issues - HCBBS Forum
45. Seeking knowledge regarding nitrogen generators - HCBBS Forum
46. Repair of mechanical seals in industrial pumps - HCBBS Forum
47. Medium-pressure steam quality standards - HCBBS Forum
48. Pressure issue with the actuator’s air supply? - HCBBS Forum
49. 【Daily Question No. 89】January 4, 2016: +2 wealth for participation, plus another +3 to +8 wealth for correct answers - HCBBS Forum
50. What is the impact of methanol in crude benzene on the hydrogenation process of crude benzene? - HCBBS Forum
51. Which manufacturers have produced shell-and-tube heat exchangers for high-pressure solid-containing fluids? - HCBBS Forum
52. After passing the basic exam, how many years is the shortest time to take the professional exam? - HCBBS Forum
53. Heat-bottom gas separation and cold-low oil heat exchange design - HCBBS Forum
54. Reuse of condensate water in power plants - HCBBS Forum
55. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 409 - HCBBS Forum
56. The acid value of naphthenic acid in cobalt naphthenate always fails to meet the requirements during laboratory analysis. Is there anyone who knows how to fix this? Help needed - HCBBS Forum
57. Do the high-strength steel welds welded to the gusset plates on the outside of the housing require heat treatment? - HCBBS Forum
58. Cities in the first and second tiers account for over 80% - HCBBS Forum
59. How has the pressure sensor market been in recent years? - HCBBS Forum
60. Solubility of magnesium sulfate heptahydrate - HCBBS Forum
61. 【Joint Study*】【HVAC Version 20160111】 - HCBBS Forum
62. Given the tank capacity and sludge solubility, as well as the COD of the incoming water, how can the water inflow volume be determined? - HCBBS Forum
63. Regarding the usage scenarios of RT, UT, MT, PT - HCBBS Forum
64. 【Daily Topic】【Live Version 20151230】 - HCBBS Forum
65. Diesel blending - HCBBS Forum
66. Judge - HCBBS Forum
67. Working principle of natural gas compressors - HCBBS Forum
68. How to delete a post - HCBBS Forum
69. 【Daily Question】1.11 The higher the pressure in the rich liquid flash tank of the solvent regeneration unit, the better the effect of flashing gaseous hydrocarbons - HCBBS Forum
70. Fractionating tower, theoretical number of plates - HCBBS Forum
71. About Honeywell DCS - HCBBS Forum
72. Regarding the question of whether re-evaluation is required after changing the flux - HCBBS Forum
73. The liquid level issue in the torch cylinder - HCBBS Forum
74. Regarding the management and responsibilities of refineries at their location, what is the definition of \"location\"? How should we understand what management responsibilities a jurisdiction actually has? - HCBBS Forum
75. Coal in-situ gasification _ A dreamlike yet real phenomenon - HCBBS Forum
76. Can the overlap of atmospheric-pressure products be reduced to below 5 degrees? ? - HCBBS Forum
77. Issues regarding single and double flange level gauges - HCBBS Forum
78. What safety standards should coal chemical industry follow? - HCBBS Forum
79. 【Daily Question】January 5, 2016: Participation = +2 Wealth； +3 to 8 wealth for correct answers - HCBBS Forum
80. Effect of nitrogen in the pressure tapping pipeline of GE gasifiers on high-temperature thermocouple measurements - HCBBS Forum
81. Calculate the volume at any liquid level in the storage tank and generate a capacity table - HCBBS Forum
82. On the properties of hydrogen sulfide. - HCBBS Forum
83. Calculation of the amount required for activated carbon adsorption equipment - HCBBS Forum
84. Environmental Protection Daily Question 1.3: Participate for prizes; 3 correct answers earn an additional 5 prizes - HCBBS Forum
85. May I ask if the standards specify any situations in which a DCS should be used instead of a PLC? - HCBBS Forum
86. Seeking advice on the key inspection items and methods for regular inspections during equipment use? - HCBBS Forum
87. Polysilicon packaging - HCBBS Forum
88. 【Weekly Topic】【HVAC Version 20160104】 - HCBBS Forum
89. Is there any regulatory basis for classifying enterprises as **chemical construction projects or chemical-related construction projects that involve the production of chemicals**? - HCBBS Forum
90. Structural issues of rod mills - HCBBS Forum
91. Solve: What does “copper gasket δ=2.5mm ″49/36” mean? - HCBBS Forum
92. Issues regarding the material of ammonium chloride containers - HCBBS Forum
93. Oxygen production membrane separation technology - HCBBS Forum
94. Can two adjacent device platforms be welded together? - HCBBS Forum
95. 【Daily Question No. 60】January 6, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
96. “Model in the Eyes of the “HaiChuan Gratitude Season” 【Shihua 011】 - HCBBS Forum
97. Request for a process description and brief overview of naphtha isomerization - HCBBS Forum
98. BM electrolyzer membrane replacement - HCBBS Forum
99. Pneumatic control valve - HCBBS Forum
100. Installation of Allen-Bradley MACS 6 system - HCBBS Forum