English — Forum #723 (Page 540/642)

1. Questions from Issue 20150909 - HCBBS Forum
2. In manufacturing plants, how should technical personnel learn*? - HCBBS Forum
3. With the DELTAV system, where AI and AO are located in separate cabinets, how can a PID loop be established? - HCBBS Forum
4. I didn’t send this. - HCBBS Forum
5. Incident Handling 37: How should damage to the water wall of a circulating fluidized bed boiler be dealt with? - HCBBS Forum
6. The problem of chloride hydrolysis - HCBBS Forum
7. What does \"ASTM D86 temperature (dry, weight basis)\\" mean in the design specifications, and how is it used? - HCBBS Forum
8. Celebrating the 70th Anniversary of Victory in the War of Resistance Against Japan – Super Building Rush Event - HCBBS Forum
9. What are the performance differences between polypropylene Bower rings and stainless steel Bower rings? - HCBBS Forum
10. What should be the spacing of the circular lightning protection grounding along the circumference of the tank wall? - HCBBS Forum
11. I would like to ask about the recovery of waste heat from flue gas - HCBBS Forum
12. Company partnership; seeking advice on personal future – urgent! - HCBBS Forum
13. There must be two valves between the gas main and the water seal. Could you explain the specific function? - HCBBS Forum
14. Help recruit a safety manager - HCBBS Forum
15. I have five years of experience working with instruments; the salary offered by my current company is too low, which makes me feel frustrated. I’m looking for a new job! ! - HCBBS Forum
16. “Haichuan Irrigation Co., Ltd. Convenience Store” Time flies – school is back again! - HCBBS Forum
17. Settings of the combustible gas alarm. Under what circumstances is it necessary to install Category C? - HCBBS Forum
18. Packing Rating - HCBBS Forum
19. diaphragm chlor-alkali - HCBBS Forum
20. What are the boiling points of trichlorosilane and silicon tetrachloride at different pressures? - HCBBS Forum
21. The evaporation temperature fluctuates frequently around the value after a single leaching process - HCBBS Forum
22. The sludge in the biochemical wastewater treatment filter press cannot be pressed out - HCBBS Forum
23. 【Daily Question】Fundamentals of Chemical Engineering 167: Convective Heat Transfer Coefficient (September 9) - HCBBS Forum
24. Could there be any problems if the filtrate from pressure filters used in wastewater treatment is returned to the sludge tank for an extended period of time? - HCBBS Forum
25. Who has information on the CL420/CL523 lockout valves? - HCBBS Forum
26. Workplace Debate Episode 63: Employee Skill Diversity – Should It Be Adopted? - HCBBS Forum
27. How to choose materials for sealing leaks with 14 kg of steam tape? - HCBBS Forum
28. Light leakage in the tubes of the distillation kettle - HCBBS Forum
29. I have a question regarding heat exchangers and would like to ask for everyone’s help - HCBBS Forum
30. How should the relative volatility be selected for the distillation separation of a low-concentration mixed acid consisting of sulfuric acid and *ao acid? - HCBBS Forum
31. Regarding compressor fault inspection and troubleshooting - HCBBS Forum
32. Selection of tower section screws for vacuum distillation towers - HCBBS Forum
33. Shandong Province Special Equipment Operator Examination - HCBBS Forum
34. One Question per Day, September 7, 2015 - HCBBS Forum
35. I finally understand why prices are high in the city - HCBBS Forum
36. What discussions and exchanges are everyone hoping to have in the digital computers sector? - HCBBS Forum
37. What is the internal structure and working principle of a packed tower? - HCBBS Forum
38. Basic knowledge: How are heat exchangers classified based on the shape and structure of their heat transfer surfaces? - HCBBS Forum
39. Treatment of condensate from the conversion unit - HCBBS Forum
40. 【Weekly Topic】The issue of air intake into the liquid sulfur tank - HCBBS Forum
41. What is 15GrMoG material? - HCBBS Forum
42. 1 - HCBBS Forum
43. Questions about the PSA switching procedure - HCBBS Forum
44. Pipes inside the concentrated sulfuric acid storage tank - HCBBS Forum
45. One Question per Day, September 11, 2015 - HCBBS Forum
46. Issues related to the upgrading of sewage treatment plants - HCBBS Forum
47. Dear ethylene friends, is there any LPG cracking? - HCBBS Forum
48. Online detection technology for liquid-phase materials - HCBBS Forum
49. Can’t the total iron in the circulating water be removed? Seeking advice from experts - HCBBS Forum
50. 【College Activities】004+\"Youth should not be wasted like this\"+qq375170364 - HCBBS Forum
51. The role of multiple curves in the anti-surge system - HCBBS Forum
52. What are the functions of adding salt and acid to the circulating brackish water in the electrolyzer? - HCBBS Forum
53. There is a discrepancy between the on-site magnetic flap level gauge and the DCS for the liquefied gas tank – what could be the reason? - HCBBS Forum
54. Turbine quick-shut assembly - HCBBS Forum
55. What are the three key components to pay attention to when using an explosion-proof crane? - HCBBS Forum
56. Instrument Engineer - HCBBS Forum
57. Notes on the Start of Alkylation Operation - HCBBS Forum
58. The future of those working on ERP in chemical companies - HCBBS Forum
59. How does the entire water system of the Lurgi furnace function? - HCBBS Forum
60. Why does the converter gas flow in from above and out from below? - HCBBS Forum
61. Questions regarding pipeline layout - HCBBS Forum
62. Selection of working fluid for water ring vacuum pumps - HCBBS Forum
63. Seek advice on blast discs - HCBBS Forum
64. Analysis of the regular fluctuation of the 2nd harmonic vibration of mechanical pumps - HCBBS Forum
65. What reactions occur when MDEA is mixed with inorganic ammonia? - HCBBS Forum
66. What are external standard method, internal standard method, and normalization method? What are their areas of application, as well as their advantages and disadvantages? - HCBBS Forum
67. What are the reasons for the shutdown of a centrifugal pump? - HCBBS Forum
68. 【Daily Question】Chemical Engineering Principles 166: Relative Humidity (September 8) - HCBBS Forum
69. Integral transaction tax - HCBBS Forum
70. What are the obligations of workers in terms of safe production? - HCBBS Forum
71. How to expand the industrial chain of the sulfuric acid industry? - HCBBS Forum
72. Discuss the impact of moisture content in coal quality on gasification? - HCBBS Forum
73. Siemens PCS7 training video - HCBBS Forum
74. Valves with threaded connections; now the client prefers flanged connections - HCBBS Forum
75. 【College Activities】015+Strange Teachers+Thank Goodness for You - HCBBS Forum
76. Emergency drill - HCBBS Forum
77. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 300 - HCBBS Forum
78. Sign-in record post from September 3, 2015 - HCBBS Forum
79. Is it better for the plate heat exchanger lubricant to flow in from above and out from below, or in from below and out from above? - HCBBS Forum
80. Why can the GB150 stress analysis method not be used for fatigue-resistant vessels? - HCBBS Forum
81. What material should be used for the wastewater discharge pipes in laboratory benzene analysis? - HCBBS Forum
82. How to effectively ensure crane pulleys for construction safety - HCBBS Forum
83. The Su Xinhe Feng coal-to-gas project embarks on another environmental impact assessment process - HCBBS Forum
84. Texaco gasification – some questions for clarification - HCBBS Forum
85. The industrial transformation has posed challenges for the casting industry; improving the capability to produce high-end castings is the key solution - HCBBS Forum
86. How to identify different ion exchange resins? - HCBBS Forum
87. Issues with the reference data of S7-300? - HCBBS Forum
88. Seeking advice on the corrosion allowance for heat exchanger tube bundles - HCBBS Forum
89. How should this post be managed? - HCBBS Forum
90. I need help determining whether the channels in the trays of pumps, unit oil stations, etc. should be filled with grout - HCBBS Forum
91. Propylene refrigeration system - HCBBS Forum
92. Only a boring life can lead to a long lifespan - HCBBS Forum
93. Applications of ultrasound in the chemical industry? - HCBBS Forum
94. Screw compressor inlet buffer tank - HCBBS Forum
95. The induction period for the finished gasoline produced by the company’s blending process is 170 minutes; could anyone with practical experience tell me how much antioxidant should be added? - HCBBS Forum
96. What causes blockage in the air-cooled water injection system of the naphtha gas stripping tower after hydrogenation? - HCBBS Forum
97. Regarding the selection of valve types - HCBBS Forum
98. It is known that the medium in the pipeline is nitrogen, with an inlet pressure of 0.4 MPa (absolute) and an outlet pressure of 0.1 MPa (absolute), at a temperature of 25°C... - HCBBS Forum
99. Does the differential pressure level gauge change with pressure? - HCBBS Forum
100. Discussion on some issues regarding laboratories and Class C factories - HCBBS Forum