English — Forum #723 (Page 12/642)

1. I can’t understand the DCS and SIS in PID diagrams - HCBBS Forum
2. Finally upgraded - HCBBS Forum
3. What is the batch process for producing polypropylene? - HCBBS Forum
4. 【Daily Topic】【Electrical Edition 20160311】 - HCBBS Forum
5. 【Weekly Topic】【 HVAC Version 201605010】 - HCBBS Forum
6. Is the make-up water and wastewater discharge in the circulating water system both large-scale additions and large-scale discharges? - HCBBS Forum
7. Light gas alarm for rectifier transformer - HCBBS Forum
8. The application of activated carbon in the treatment of domestic wastewater - HCBBS Forum
9. [Suggestion Post] Suggest adding a section on waste acid regeneration - HCBBS Forum
10. Design of polytetrafluoroethylene structured packing towers - HCBBS Forum
11. 2-Amino-2-methyl-1-propanol (AMP) - HCBBS Forum
12. 【Daily Question】10.28 Multiple-choice question: The greater the gas-phase mixing in the methanol recovery tower, the more （ ） will be carried out of the tower top - HCBBS Forum
13. I just graduated 5 years ago and want to read some books; what kind of certificate would be useful to obtain? - HCBBS Forum
14. Drafting a conical section with straight edges? - HCBBS Forum
15. 【Daily Question】Question from Issue 20150905 - HCBBS Forum
16. 【Daily Topic】【Electrical Edition 20160714】 - HCBBS Forum
17. Nitrogen content in coke oven gas - HCBBS Forum
18. What factors affect the flow coefficient of a rotameter? - HCBBS Forum
19. BGL gasification, coal gasification, solid-bed gasifier gasification - HCBBS Forum
20. Welding laboratory - HCBBS Forum
21. It is recommended to continue the golden egg cracking event - HCBBS Forum
22. Smoking poses a severe threat to cerebral blood vessels; after reading this, do you still want to smoke? - HCBBS Forum
23. Health and Occupational Health Edition: One vote per day on November 15th (the more votes, the more rewards) - HCBBS Forum
24. The material grade for the valve sealing surface is denoted by the uppercase letter “Y” – what is its composition? - HCBBS Forum
25. Differences between a technician certificate, an engineer certificate, and a vocational qualification certificate - HCBBS Forum
26. Are measurement points required for the regular blowdown expansion vessel of a boiler? Temperature, pressure, and things of that kind - HCBBS Forum
27. 【Chemical Industry Ad】Second-generation biodiesel - HCBBS Forum
28. Regarding fans and magnetic pumps - HCBBS Forum
29. Descaling of coal-fired steam boilers - HCBBS Forum
30. When 20 kPaG of chlorine gas containing 1000 PPM of water at 150°C is cooled to 27°C, will water precipitate out? - HCBBS Forum
31. What is the most beneficial occupational health activity to do together every morning? - HCBBS Forum
32. 【Daily Question】Deep Processing 20160530 Multiple Choice: Before starting a reciprocating compressor, what should be used as the purge gas? - HCBBS Forum
33. There’s a problem with the XiBe actuator - HCBBS Forum
34. Shandong refineries purchase heavy crude oil, thick crude oil, 180cts, M100 and other refining feedstocks - HCBBS Forum
35. Pipe welds - HCBBS Forum
36. Issues regarding heat treatment time in weld procedure qualification - HCBBS Forum
37. In horizontal fixed-tube-sheet heat exchangers, can the expansion joint be directly welded to the tube sheet? - HCBBS Forum
38. Current Status and Development Trends of Refinery Wastewater Treatment in the United States - HCBBS Forum
39. SIS and LOPA video lectures - HCBBS Forum
40. 【Daily Question】1.20 Corrosion rate of non-oxidizing acids (3 wealth points for a reply + additional 3–8 wealth points if the answer is correct) - HCBBS Forum
41. Setting of the vent main temperature - HCBBS Forum
42. Properties of gasoline - HCBBS Forum
43. Cyclopentadiene inhibition - HCBBS Forum
44. 【Daily Topic】【Civil Engineering Version 20160309】 - HCBBS Forum
45. There is a material substitution form for the pressure vessel; does the drawing need to be modified? - HCBBS Forum
46. The effect of methyl tert-butyl ether (TAME) on improving octane rating - HCBBS Forum
47. 【Daily Question】November 9, 2015: Boiler true/false questions (3 wealth points for a reply; +3 to 8 additional wealth points for a correct answer) - HCBBS Forum
48. Soy product wastewater - HCBBS Forum
49. Emerson DCS - HCBBS Forum
50. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 367 - HCBBS Forum
51. To achieve profitability, it is necessary to focus on both ’’firsts’’ - HCBBS Forum
52. The CAESAR video for beginners has started! - HCBBS Forum
53. Conversion method for horizontal tanks - HCBBS Forum
54. A meeting for those in the precious metals industry is starting! - HCBBS Forum
55. Control of the stripping steam volume in the settler - HCBBS Forum
56. Let’s work on the questions: 2015 Level 1 Certified Fire Engineer – Technical Practice, Questions 13-14 - HCBBS Forum
57. About MRC compressors - HCBBS Forum
58. What is the main component after glucose hydrogenation? - HCBBS Forum
59. How does the S7-300 PLC achieve first-output? - HCBBS Forum
60. Is this considered a work-related injury? - HCBBS Forum
61. Issues with the shutdown of natural gas-based hydrogen production facilities - HCBBS Forum
62. Can stainless steel thin-walled sanitary pipes be used in pressure pipelines? - HCBBS Forum
63. Questions about metal hoses - HCBBS Forum
64. There are a few questions; please help answer them. - HCBBS Forum
65. If you are in a company and you do work that no one else there does, and also work that you yourself wouldn’t do, what should you do? - HCBBS Forum
66. It will drop below zero in a few days, and only then did I realize that double-flange capillaries cannot be used at temperatures below 10 degrees - HCBBS Forum
67. The working principle of equalizing orifice plates and submersible orifice plates. - HCBBS Forum
68. 【Daily Topic】【Civil Engineering Version 20160602】 - HCBBS Forum
69. Issues regarding the corrosion of boiler convection tubes - HCBBS Forum
70. How to prevent corrosion at the top of atmospheric pressure towers - HCBBS Forum
71. On the hydrogen-to-oil ratio in diesel hydrogenation - HCBBS Forum
72. Problems with liquid level measurement in crude oil storage tanks - HCBBS Forum
73. Let’s work on questions 07-2015 from the First-Class Constructor Examination, related to the \"Laws and Regulations\" section: multiple-choice questions 31-33 - HCBBS Forum
74. 【Micro-fiction】Explain Safety Through Real Examples - HCBBS Forum
75. Measuring the hardness, strength, and toughness of steel - HCBBS Forum
76. Power station boilers, water wall tubes, information - HCBBS Forum
77. Civil Engineering Structure Discussion Area ---- [Daily Question] Question from the 20151226 issue - HCBBS Forum
78. Should a fixed-tube-sheet heat exchanger be used for media that can easily cause tube corrosion or scaling in the shell side? - HCBBS Forum
79. 【Daily Question】 December 1st - HCBBS Forum
80. How much does a set for coal-to-gas production cost? Help needed - HCBBS Forum
81. 【Haichuan Chemical Industry News】Yunnan Petrochemical’s refining project is scheduled to go into operation in the second quarter of next year - HCBBS Forum
82. Welding Operation Guide for High-Pressure Feedwater and Reheat Steam Piping of Unit 8 – Xuanwei Power Plant Phase VII Expansion Project, 2×300MW Units, Page 27 - HCBBS Forum
83. Request for the PID flow diagram of Datang Duolun air separation plant - HCBBS Forum
84. After being lost for too long, I chose to run away - HCBBS Forum
85. Apart from professional books, do people usually read print books? - HCBBS Forum
86. Questions about the self-control installation manual - HCBBS Forum
87. The CAD type is undefined, and then it gets stuck. How to fix it! - HCBBS Forum
88. Does anyone know about the fluorination process? Let’s discuss it! - HCBBS Forum
89. 【Daily Topic】【Engineering Version 20161002】 - HCBBS Forum
90. 【Daily Question】Chemical Engineering Principles 470: Hydrogen-Cooled Generators (November 29) - HCBBS Forum
91. Siemens centrifugal pump - HCBBS Forum
92. An industry news item from September 13, 2016: MCC Tian Gong Group has been contracted to supply industrial gases for Air Liquide (Yan’an) Co., Ltd.... - HCBBS Forum
93. 【Mechanical Division】Post on assessments of management and technical teams serta payment of salaries and bonuses for August 2016 - HCBBS Forum
94. All the food incompatibilities have finally been identified - HCBBS Forum
95. How to deal with excessive tar accumulation in negative pressure pipelines - HCBBS Forum
96. Issues regarding cooling water consumption and cooling water outlet temperature - HCBBS Forum
97. The answers to the work-related injury cases have been released. Yuan Fang, come and see if your guesses are correct! - HCBBS Forum
98. Measuring the effect of high-temperature media on pressure transmitters and pressure gauges - HCBBS Forum
99. Are the on-site calibration results of flowmeters with a liquid medium reliable? - HCBBS Forum
100. Is water or air used in the leakage test? - HCBBS Forum