English — Forum #723 (Page 531/642)

1. Are there any regulations regarding the service life of pressure vessels? - HCBBS Forum
2. Delayed coking heater - HCBBS Forum
3. How to reduce the alkali concentration in the electrolyzer over time - HCBBS Forum
4. 【Daily Question】Test Issue 20150908 - HCBBS Forum
5. What exactly is the carbon content of ultra-low carbon stainless steel? - HCBBS Forum
6. “Weekly Topic”: Low-temperature methanol washing and NHD desulfurization - HCBBS Forum
7. How to control the circulation volume in the pressure swing distillation cycle - HCBBS Forum
8. Which is greater, the inlet flow velocity or the outlet flow velocity of a general centrifugal pump? Why? - HCBBS Forum
9. Questions regarding Association **Question Set 5-41 - HCBBS Forum
10. Regarding the issue of professional title evaluation, could the experts here suggest what to do? - HCBBS Forum
11. Calculation of the flow capacity of control valves - HCBBS Forum
12. Outlet pressure of the centrifugal pump - HCBBS Forum
13. The question of whether the reaction terminator participates in the reaction - HCBBS Forum
14. High-pressure water injection in the hydroprocessing unit - HCBBS Forum
15. The centrifugal pump vibrates severely; seeking help - HCBBS Forum
16. How should secondary stress be understood? - HCBBS Forum
17. Water production rate of pure water equipment - HCBBS Forum
18. Where can I buy Danfoss PMFL125 DN32 solenoid pilot valves or valve spools? - HCBBS Forum
19. Process design/engineering translation – are there any suitable jobs in Jiangsu, Zhejiang, and Shanghai? - HCBBS Forum
20. Who has technical information such as the process flow or related equipment for Inner Mongolia Yidong Jiuding Chemical? - HCBBS Forum
21. The application of flow meters in the food industry - HCBBS Forum
22. Please recommend a boiler, expert - HCBBS Forum
23. Main structural type in the pressure vessel product data sheet - HCBBS Forum
24. Heat exchange problems between molten salt heat exchangers and water - HCBBS Forum
25. Definition of large pumps - HCBBS Forum
26. Selection of socket welding - HCBBS Forum
27. Methods for dealing with pipeline blockages - HCBBS Forum
28. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 296 - HCBBS Forum
29. Inspection issues during the operation of heat transfer oil - HCBBS Forum
30. 【Daily Question No. 13】September 12, 2015: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
31. Analysis of counter-current two-stage recontact and single-stage forward-flow recontact in reforming units - HCBBS Forum
32. How to calculate the change in gas pressure inside a closed container with temperature? - HCBBS Forum
33. How to enter the actual number of trays during tower simulation? - HCBBS Forum
34. What specification should the high-pressure hose behind the outlet valve of the liquid ammonia cylinder be? - HCBBS Forum
35. Change jobs - HCBBS Forum
36. Why does honey crystallize - HCBBS Forum
37. Do people add sugar or salt when drinking soy milk? - HCBBS Forum
38. Recruiting members for the Haichuan WeChat editorial team - HCBBS Forum
39. At what pressure does hydrogen turn into a liquid state? - HCBBS Forum
40. 【Daily Question】Question from Issue 20150905 - HCBBS Forum
41. When replacing the meter at the incoming line, connecting the new meter causes one of the outgoing circuits to trip - HCBBS Forum
42. Seeking advice on the selection of a reaction kettle and accompanying oil bath - HCBBS Forum
43. Heat transfer calculation for optical tubes and heat pipes - HCBBS Forum
44. What are the two most common faults during the running-in period of grab-type gantry cranes? - HCBBS Forum
45. How to set the parameters of expansion joints in CAESARII - HCBBS Forum
46. The stock price has dropped to such a level – what’s your opinion, Yuan Fang? - HCBBS Forum
47. Dryer and dehumidifier dew point solutions - HCBBS Forum
48. 【Daily Question】Question from Issue 20150903 - HCBBS Forum
49. Stone clogging in the tube bundle of a fixed-tube-sheet propylene heat exchanger - HCBBS Forum
50. What do Brine 1 and Brine 2 represent respectively? - HCBBS Forum
51. Equipment management issues in chemical production - HCBBS Forum
52. Seeking a job with 8 years of experience in instrumentation work - HCBBS Forum
53. Problem with the bearing model? ? ? (Seeking advice from experts familiar with bearings) - HCBBS Forum
54. Urgently needed: What is the annual production capacity in tens of thousands of tons for caustic soda in China online? And what is the concentration of this caustic soda? - HCBBS Forum
55. Chlorine pressurized transportation - HCBBS Forum
56. The Child Who Chases the Wind - HCBBS Forum
57. What are the safety precautions for storing tanks in a warehouse? - HCBBS Forum
58. Materials on case analysis for the environmental impact assessment exam – seeking help; the file is too large to upload - HCBBS Forum
59. Is it the viscosity reason why gear pumps are less used in processing? - HCBBS Forum
60. September 7: Boiler Foundation Questions 23 – Term Explanations: (A certain score will be given to the top 30) - HCBBS Forum
61. Cathodes used in the chlor-alkali industry - HCBBS Forum
62. How can we add a server to read OPC data from Zhejiang University’s central control system? - HCBBS Forum
63. Regarding the arrangement of waste boilers in rows and columns - HCBBS Forum
64. Pressure control after shutdown of the diesel hydrogenation cycle machine - HCBBS Forum
65. Issues related to pump draining - HCBBS Forum
66. Is it possible to prevent the oil from the workshop from reaching the heat transfer oil furnace, thus avoiding oil overflow from the expansion tank? - HCBBS Forum
67. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 297 - HCBBS Forum
68. Slagging problem in pulverized coal gasifiers! - HCBBS Forum
69. 【Daily Question】Question from Issue 20150908 - HCBBS Forum
70. As the children and parents are getting older, seeking job opportunities in the field of chemical instrumentation and automation in Tai’an and Jining areas of Shandong Province - HCBBS Forum
71. Separation of biuret - HCBBS Forum
72. I would like some advice on calculating the volume of a coal bin - HCBBS Forum
73. Solutions for air leakage in the pneumatic clutch air bag - HCBBS Forum
74. Chemical Engineering in Daily Life – Question 66: During the Spring and Autumn period, if it was raining while driving, should one use the cool air mode or the hot air mode? - HCBBS Forum
75. In SW6-2011, the designed overall flange value results in a negative tangential stress for one of the flanges - HCBBS Forum
76. Who knows books on the classification of common materials and their application conditions - HCBBS Forum
77. Qualifications for pipeline design, fabrication, and installation per ASME B31.3 - HCBBS Forum
78. Property analysis of sulfur-depleted amine solution - HCBBS Forum
79. What are the eight famous environmental disasters in the history of environmental issues? It also identifies the main pollutants responsible for each type of pollution. - HCBBS Forum
80. Which manufacturers’ condensate pumps for air separation steam turbines offer relatively more stable operation? - HCBBS Forum
81. The meaning of pipe grade - HCBBS Forum
82. How will the registered safety engineers at Tianjin Ruihai Logistics Company handle this? - HCBBS Forum
83. Sample analysis issues - HCBBS Forum
84. Heat transfer oil furnace - HCBBS Forum
85. For building a new power plant, what should I know as a thermal control engineer? - HCBBS Forum
86. What precautions should be taken when moving a mobile crane? - HCBBS Forum
87. During distillation, how are the temperatures at the top and bottom of the tower controlled? - HCBBS Forum
88. 2015.9.6——‘Weekly Topic’: What is your inspection method? - HCBBS Forum
89. converter - HCBBS Forum
90. Siemens S7-300, EM331 AI card; multiple instruments show full scale - HCBBS Forum
91. High school diploma – Intermediate professional title - HCBBS Forum
92. Where are the pressure monitoring points for the compressed air pipeline? - HCBBS Forum
93. Sinopec Xinjiang Coal-to-Natural Gas - HCBBS Forum
94. What effects does wind load have on the tower? - HCBBS Forum
95. Design dilemmas - HCBBS Forum
96. What is the angle of the grinding roller in the ZGM coal grinder? - HCBBS Forum
97. Environmental Protection Daily Question, September 11 - HCBBS Forum
98. Properties of coal tar - HCBBS Forum
99. Reasons for the frequent failure of ion exchange columns in thermoelectric steam chemical dosing system analyzers - HCBBS Forum
100. Why do some factories only operate night shifts? - HCBBS Forum