English — Forum #723 (Page 558/642)

1. In the installation of pressure pipelines, can 316L stainless steel pipes be used with 304 elbows and tees? - HCBBS Forum
2. The principles of chemistry in cuisine: air cushions - HCBBS Forum
3. Buy helium membrane press - HCBBS Forum
4. Under what conditions can an air cooler and a separation tank be installed at the top of the tower - HCBBS Forum
5. WINDING TEMP(R) - HCBBS Forum
6. I need help – what parameters are generally monitored by an online monitoring system for reciprocating compressors? - HCBBS Forum
7. Reasons for the large fluctuations in the flow rates of the four streams in delayed coking - HCBBS Forum
8. A coating material with better toughness than enamel and acid resistance - HCBBS Forum
9. Solve for the pressure at the outlet of the nozzle flow meter, which is higher than that at the inlet - HCBBS Forum
10. How is the amount of sulfurizing agent used determined when sulfuring the catalyst in a hydrogenation unit? - HCBBS Forum
11. 【Daily Question】Question from Issue 20150819 - HCBBS Forum
12. Calculation of equivalent tray height for packed columns - HCBBS Forum
13. “\"Sun protection clothing\" – have you made the right choice? - HCBBS Forum
14. What materials should be used for pipeline pumps and storage tanks when evaporating potassium dihydrogen phosphate solutions? - HCBBS Forum
15. Centrifugal pump shuts down due to overload - HCBBS Forum
16. Did the management of PASS count before? - HCBBS Forum
17. Now, efficiency doesn’t stop with the individual efficiencies How to translate - HCBBS Forum
18. Regarding the wiring of the motor - HCBBS Forum
19. Design issues of molten salt heating tanks - HCBBS Forum
20. What is used to calculate spiral plate heat exchangers? - HCBBS Forum
21. Guan Moderator’s [Daily Question] [Weekly Topic] Summary Post - HCBBS Forum
22. I would like to ask about the placement of vent and drain ports in heat exchangers arranged in an overlapping configuration - HCBBS Forum
23. Should the heat exchange tubes in the primary cooler be cold-drawn tubes or hot-rolled tubes? - HCBBS Forum
24. 【Daily Question】Question from Issue 20150818 - HCBBS Forum
25. A great person should not lose out due to emotional intelligence - HCBBS Forum
26. How to correctly handle mutual inductance and self-inductance, and how to determine the direction? - HCBBS Forum
27. Coke, synthetic ammonia, circular economy industrial chain - HCBBS Forum
28. Calculation of LNG pipeline supports - HCBBS Forum
29. Thunderstorms caused the flow meter and pressure regulation system to fail, but what is the cause of the problem? How to solve it? - HCBBS Forum
30. Problem of pressureless rectangular containers - HCBBS Forum
31. Problems with valve factory testing - HCBBS Forum
32. Why is C22 the material used for the nozzles used to inject ammonia water in the boiler flue gas denitration process? - HCBBS Forum
33. 【20150820】How are the protection values for stage 1, stage 2, and stage 3 of high-voltage electricity set? - HCBBS Forum
34. Corrosion of the jacket surrounding the reaction vessel - HCBBS Forum
35. Which expert has the tables for SH/T3903 and SH/T3904? Could you send me one? I am extremely grateful - HCBBS Forum
36. Personnel allocation for the chlor-alkali production area - HCBBS Forum
37. Weekly topic: 5 Wealth points for correct answers, 2 Wealth points for participation； Question 148 - HCBBS Forum
38. **What pump is safe to use for transporting liquids? - HCBBS Forum
39. What are the working conditions like now? Are there any requests or ideas to reduce the workload? - HCBBS Forum
40. Which is better, Spayark valves or Armstrong’s? - HCBBS Forum
41. What material is used to transport high-temperature formic acid vapor? - HCBBS Forum
42. Regarding the layout of a discharge pipe - HCBBS Forum
43. Demineralized water chemical dosing ratio - HCBBS Forum
44. For a long time to come, Hai Chuan - HCBBS Forum
45. Does anyone know the timing and degree for turning a centrifugal compressor? Urgent! ! ! - HCBBS Forum
46. What version of the CAESAR software is everyone using? - HCBBS Forum
47. What every working professional needs to know from painful experiences to pick up English again~ - HCBBS Forum
48. 60 questions on professional knowledge in the morning, 2012 - HCBBS Forum
49. How to calculate the height of a single-flange level gauge - HCBBS Forum
50. 【Daily Question】Question from Issue 20150811 - HCBBS Forum
51. Predictions regarding LBJ’s athletic career - HCBBS Forum
52. That expert has knowledge regarding the process operations and precautions for alkali liquid desulfurization using complexed iron; please share it - HCBBS Forum
53. Emergency guidelines from the U.S. Federal Emergency Management Agency (FEMA) - HCBBS Forum
54. Vacuum pump selection - HCBBS Forum
55. 【Daily Question】2015.08.20 Special Equipment Accidents (Top 100 replies + 2 rewards; +3–8 additional rewards for correct answers) - HCBBS Forum
56. Issues with the material used for connectors on standard manholes - HCBBS Forum
57. Excel external data connection - HCBBS Forum
58. 【Daily Question】Question from Issue 20150812 - HCBBS Forum
59. Fluidized bed operation - HCBBS Forum
60. Note: Real exam questions from 2011, Knowledge section, Morning session, Question 47 - HCBBS Forum
61. How to install Aspen on Win10 system - HCBBS Forum
62. Weekly topic: 5 wealth points for those who answer correctly, 2 wealth points for participation； Question 134 - HCBBS Forum
63. Urgently need an answer: In SCR denitration, when ammonia water is used as a reducing agent, why does tube blockage occur so severely? - HCBBS Forum
64. Methods for preventing corrosion of steel parts - HCBBS Forum
65. 【Daily Question】August 19, 2015 - HCBBS Forum
66. Determination of zinc sulfate containing ferrous ions - HCBBS Forum
67. Looking for a filter that is resistant to high temperatures and acid corrosion…… - HCBBS Forum
68. Is it better to work in a catalyst company providing technical support, or to work with the client side on new plant construction? - HCBBS Forum
69. How to calculate the spray density of a horizontal tube spray evaporator - HCBBS Forum
70. 【Daily Question】August 11, 2015 - HCBBS Forum
71. Chemical Engineering in Life - Question 7 - Standard answers available - HCBBS Forum
72. The catalytic dry gas has a high isobutane content - HCBBS Forum
73. Has Haichuan Network been redesigned recently? - HCBBS Forum
74. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 280 - HCBBS Forum
75. What are the established treatment and processing methods for tar residues? - HCBBS Forum
76. I would like to ask about the corrosive effect of fumaric acid on titanium Is there any information? Thank you - HCBBS Forum
77. Precautions for maintaining variable-frequency power supplies - HCBBS Forum
78. Slag lock hopper slag collection temperature issue! - HCBBS Forum
79. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 277 - HCBBS Forum
80. Reflections on “Cherish Your First Job” - HCBBS Forum
81. What is water pretreatment? What are its main contents and tasks? - HCBBS Forum
82. Pulverized coal pressurized gasification furnace channel flow - HCBBS Forum
83. Chongqing – Automation Instruments & Meters – Sales Engineer, - HCBBS Forum
84. Washing tower drainage issues during the initial startup of gasification - HCBBS Forum
85. ethylene glycol - HCBBS Forum
86. Hang up and lock it - HCBBS Forum
87. Detailed working principle and illustrations of industrial dehumidifiers - HCBBS Forum
88. After the neutron source in the coke tower neutron level gauge is removed, is the level gauge transmitter still radioactive? - HCBBS Forum
89. Does anyone know which domestic manufacturer produces dinitrogen difluoride? - HCBBS Forum
90. Steam preheater - HCBBS Forum
91. 【Daily Question】8.13 Return +2； To +3 - HCBBS Forum
92. 【Daily Question】August 12 – Judgment on turbine operation (+2 for the first 80 participants; +3–8 in wealth for correct answers) - HCBBS Forum
93. Discussion on the installation height of differential pressure level gauges - HCBBS Forum
94. Discussion on technical issues of online density meters - HCBBS Forum
95. Why does the catalyst in a converter overheat when exposed to high oxygen levels? - HCBBS Forum
96. I searched for a long time but didn’t find any posts about E3D. Are there any users from Sichuan who use E3D? - HCBBS Forum
97. 【Daily Question】Question from Issue 20150812 - HCBBS Forum
98. Has anyone used a dust alarm? - HCBBS Forum
99. Flow measurement using differential pressure in orifice plate flow meters - HCBBS Forum
100. How should shielded pumps be maintained when not in use for extended periods? - HCBBS Forum