English — Forum #723 (Page 143/642)

1. The issue of the face-to-face dimension length of the valve - HCBBS Forum
2. 【Daily Topic】【HVAC Version 20160917】 - HCBBS Forum
3. Is the temperature of sulfur-containing methanol exiting the bottom of the absorption tower lower than that of sulfur-free methanol exiting the same tower? - HCBBS Forum
4. Error accuracy calculation - HCBBS Forum
5. Solving the problem of non-explosion-proof large motors in explosion-proof areas - HCBBS Forum
6. 【Daily Topic】【Engineering Version 20160915】 - HCBBS Forum
7. Setting principles for comprehensive motor protection - HCBBS Forum
8. Process simulation + 3D scene = ? - HCBBS Forum
9. Acceleration in the preliminary work for the COAL-to-GAS project jointly carried out by Tongmei and CNOOC - HCBBS Forum
10. 【Daily Topic】【Civil Engineering Version 20160912】 - HCBBS Forum
11. 【Daily Topic】【Engineering Version 20160917】 - HCBBS Forum
12. Century Acquisition Falls Through; Praxair and Linde End Negotiations - HCBBS Forum
13. What other factors are relevant to the actual operation of LNG refrigerant mixing besides the specified mixing ratio? - HCBBS Forum
14. Analysis of the instability problem of externally pressurized cylinders - HCBBS Forum
15. One Question per Day (2016.9.7) - HCBBS Forum
16. 【Daily Topic】【Electrical Edition 20160909】 - HCBBS Forum
17. Blending compatibility of high-octane gasoline - HCBBS Forum
18. Sign-in record post from September 19, 2016 - HCBBS Forum
19. Emergency pressure relief device for micro-positive pressure storage tanks after nitrogen sealing - HCBBS Forum
20. Can a sleeve be embedded in the wall when installing insulation pipes? How to insulate areas where walls meet? - HCBBS Forum
21. 2016 Basics – Afternoon: Compilation of my own answers and those discussed by netizens【Hurry up and join the discussion!】 ! ! ! ! ! 】 - HCBBS Forum
22. What is the function of the DN200 air duct at the rear of the exhaust gas incinerator? - HCBBS Forum
23. Instrument valves - HCBBS Forum
24. Ah, I’ve finally made it to the 6th grade at Kaichuan Primary School - HCBBS Forum
25. Sign-in record post from September 20, 2016 - HCBBS Forum
26. GB/T 4754-2011 Classification of National Economic Industries - HCBBS Forum
27. Do I need to write down the formulas when answering professionally? - HCBBS Forum
28. Pipeline material grade code - HCBBS Forum
29. What is the acceptable normal temperature limit for the furnace walls of sulfur production furnaces and flue gas furnaces using sulfur? ? - HCBBS Forum
30. Environmental Protection Daily Post 9.13: Reward for participation, plus 5 more points for answering 3 questions correctly - HCBBS Forum
31. Request an emergency plan template - HCBBS Forum
32. Seeking help with the problem of saturated vapor pressure - HCBBS Forum
33. Seeking help with calculations related to boiler flue gas in thermal power plants - HCBBS Forum
34. Sharing a super-version of a Mid-Autumn poem about desert poplars - HCBBS Forum
35. Please help translate it - HCBBS Forum
36. 【Daily Topic】【HVAC Version 20160912】 - HCBBS Forum
37. The problem of dry point in catalyzed crude gasoline and stabilized gasoline - HCBBS Forum
38. Electrical safety books - HCBBS Forum
39. What substances can replace silver nitrate - HCBBS Forum
40. rising tube - HCBBS Forum
41. The work is complicated and exhausting; three tips to help you master safety supervision work - HCBBS Forum
42. Can my qualifications qualify me to take the registered chemical engineering exam? - HCBBS Forum
43. Amount of solvent type fire extinguishing agent No. 2 - HCBBS Forum
44. 【The September 18th Incident】Never forget the national humiliation - HCBBS Forum
45. PX pipeline installation - HCBBS Forum
46. What to do when insufficient pressure exists to completely drain the oil during the shutdown of the absorption stabilization system? - HCBBS Forum
47. Pump inlet and outlet pressure - HCBBS Forum
48. 【Daily Topic】【Civil Engineering Version 20160914】 - HCBBS Forum
49. How to determine whether the liquid level in the methanol-water separation tower is full or empty? What are the respective symptoms? - HCBBS Forum
50. What is the purpose of grounding an electrolyzer? - HCBBS Forum
51. Seeking purchase of high-purity hydrogen gas at 20 MPa, 99.999% purity - HCBBS Forum
52. Selection of condensation flow direction in the steam pipe at the top of the tower - HCBBS Forum
53. Does the customer require the ASME vessel to undergo a pressure test at 1.2 times the pressure? - HCBBS Forum
54. saturated vapor pressure - HCBBS Forum
55. Alpha cellulose - HCBBS Forum
56. I’m looking for design drawings for a caustic soda warehouse. Thank you very much - HCBBS Forum
57. Besides obtaining certification through exams, life has many other aspects—as well as documenting the difficult journey of pursuing certifications over these years - HCBBS Forum
58. Morning exercise -- early morning after the rain - HCBBS Forum
59. Excessively high top temperature in the hydrogenation desulfurization hydrogen sulfide stripping tower - HCBBS Forum
60. In low-temperature methanol washing, is ammonia in methanol detected? - HCBBS Forum
61. Please read it once a day | The 22 Rules of West Point - HCBBS Forum
62. Usage of polysilicon graphite parts cleaning equipment - HCBBS Forum
63. The concentration of sulfur dioxide in gas detectors - HCBBS Forum
64. Desulfurization and devanadiumization of coking feedstock oil - HCBBS Forum
65. Why is hydroxylamine hydrochloride used instead of ascorbic acid in the ferroin method for measuring iron content in industrial circulating water? - HCBBS Forum
66. What is triethanolamine diposphate? - HCBBS Forum
67. There are many cyclones in the settler; where does the separated catalyst fall directly? - HCBBS Forum
68. What is a high-pressure pipeline? - HCBBS Forum
69. Morning Exercise: Jiangchengzi – Mid-Autumn Festival - HCBBS Forum
70. Why does a mechanical seal using a metal bellows not require a thrust ring? - HCBBS Forum
71. Temperature and pressure compensation - HCBBS Forum
72. For the question about calculating the packing layer in the absorption tower in the afternoon, how do I do it? - HCBBS Forum
73. Compressive strength, bending strength, and shear strength of epoxy fiberglass pipes - HCBBS Forum
74. Three-phase four-wire 480V voltage, what should the control voltage be? - HCBBS Forum
75. How to control the diesel flash point in a delayed coking fractionator - HCBBS Forum
76. The Honeywell PKS printer cannot print automatically anymore - HCBBS Forum
77. In a polyethylene plant, what is the specified hydrogen flow rate in the ethylene purification unit? What are the negative consequences if the flow rate is too high? - HCBBS Forum
78. 【Daily Topic】【Engineering Version 20160914】 - HCBBS Forum
79. Does the heat exchange tube bundle require heat treatment? - HCBBS Forum
80. 【Daily Question】Chemical Engineering Principles 428: Boilers (September 14) - HCBBS Forum
81. Types of level gauges for sulfuric acid storage tanks - HCBBS Forum
82. 【Daily Question】Chemical Engineering Principles 432: Hydrogen Humidity (September 20) - HCBBS Forum
83. [Help] Calculation of vacuum level during tank discharging process - HCBBS Forum
84. I’m too tired to complain about the company’s terrible internet - HCBBS Forum
85. High-voltage motor sliding bearings, non-forced lubrication, oil change interval? - HCBBS Forum
86. What are the main reasons for the decline in current efficiency of electrolyzers? - HCBBS Forum
87. Seeking desulfurization technology assistance - HCBBS Forum
88. 【Mid-Autumn Special Program】Riddle Guessing 16 - HCBBS Forum
89. Liquid nitrogen tank loss rate - HCBBS Forum
90. Selection of low-flow pumps - HCBBS Forum
91. 【Weekly Topic】【Quality Version 20160920】 - HCBBS Forum
92. On the relationship between the head of a pump and the actual outlet pressure - HCBBS Forum
93. Learn from the lesson! Report on three recent incidents of poisoning caused by hazardous chemical leaks - HCBBS Forum
94. Liquid nitrogen tank loss rate - HCBBS Forum
95. I can’t figure out the default PV display for PID - HCBBS Forum
96. Discussion on the Abnormal Temperature Issue of the Tray in the Texaco Gasifier - HCBBS Forum
97. Round of 16 Match 2 – China draws with Iran - HCBBS Forum
98. 【Daily Topic】【Electrical Edition 20160911】 - HCBBS Forum
99. Cavitation in centrifugal pumps - HCBBS Forum
100. The problem of molecular sieve dehydration in solvents - HCBBS Forum