English — Forum #723 (Page 210/642)

1. Triple-screw pump helix angle - HCBBS Forum
2. 【One update per day】Safe mode - HCBBS Forum
3. How to calculate fiberglass equipment using SW6? ! - HCBBS Forum
4. Causes of fouling in reverse osmosis membranes - HCBBS Forum
5. 【Taste of Haichuan – Food Lovers of Haichuan Have Power】Meat Dishes Voting Series - HCBBS Forum
6. Help needed: wastewater from pharmaceutical and chemical synthesis - HCBBS Forum
7. How is sampling carried out in a distillation tower? - HCBBS Forum
8. I would like to ask which other manufacturers are using flue gas conditioning to improve the efficiency of dust collectors? - HCBBS Forum
9. 【Daily Topic】【Engineering Version 20160704】 - HCBBS Forum
10. In vacuum distillation, the upper tube sheet of the reboiler must be above the normal liquid level in the tower bottom. Why? ? ? ? - HCBBS Forum
11. 【Weekly Topic】【Quality Version 20160707】 - HCBBS Forum
12. Send one - HCBBS Forum
13. What certificates do fire safety managers need to obtain? - HCBBS Forum
14. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； July 8th - HCBBS Forum
15. Treatment of oily wastewater from the machinery industry using the oil separation + air flotation + filtration + adsorption process - HCBBS Forum
16. 【Daily Topic】【Engineering Version 20160709】 - HCBBS Forum
17. Direct production of ethylene from methane: a new breakthrough in the petrochemical industry - HCBBS Forum
18. Which friend sent me a set of 3D drawings for pressure vessels? Thank you all! - HCBBS Forum
19. Where can arsenic and mercury in gaseous light hydrocarbons be analyzed? - HCBBS Forum
20. 【Career Life Section】Posts on assessments and salary/bonus distribution - HCBBS Forum
21. What items should be checked during the inspection of on-site instruments? - HCBBS Forum
22. Screw rod air compressor unit - HCBBS Forum
23. Common gas separation methods and principles in industry - HCBBS Forum
24. Issues with the overall price budget - HCBBS Forum
25. 【Daily Question】Chemical Engineering Principles 402: Chemical Diagnostic Techniques (July 5) - HCBBS Forum
26. Regarding the cultivation of nitrifying bacteria in the activated sludge process? - HCBBS Forum
27. How can the residual monomers after the styrene-butadiene latex reaction be recovered and reused - HCBBS Forum
28. What do I/P/C/R in valve models stand for in terms of material? - HCBBS Forum
29. Ignition of the fuel oil heater - HCBBS Forum
30. 【Daily Question】 2016 07 04 Hydrogenation Sector Multiple-choice Question - HCBBS Forum
31. 【Daily Topic】【HVAC Version 20160711】 - HCBBS Forum
32. Could some expert help translate this sentence? Is there a standard way to express it? - HCBBS Forum
33. The closing pressure of the nitrogen seal valve should be less than 75% of the set pressure value of the breather valve - HCBBS Forum
34. Is the Y-type filter for the coolant circulation water always clogged? - HCBBS Forum
35. Daily Question 2016.7.5 (EIA Discussion): 3 Wealth points for replies, plus 5 Wealth points for correct answers (single-choice question) - HCBBS Forum
36. Purpose of detecting the dew point of purified air - HCBBS Forum
37. How to deal with a sudden increase in pressure difference in the water washing tower of a spacecraft furnace - HCBBS Forum
38. Generally, what kind of signals require two sets of instruments? - HCBBS Forum
39. 【Daily Topic】【Electrical Edition 20160702】 - HCBBS Forum
40. Confused about valve standards - HCBBS Forum
41. How long can the activated sludge remain at rest in the aerobic activated sludge process - HCBBS Forum
42. Portugal wins the title with 6 draws in 7 matches; third-team in group creates a miracle to claim the crown - HCBBS Forum
43. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； July 9th - HCBBS Forum
44. 【Euro Cup Big Bet】25 Portugal vs France - HCBBS Forum
45. The house beam C-shaped steel is hung from the hook - HCBBS Forum
46. What are the values of BOD5:N:P respectively during aerobic and anaerobic activated sludge biological treatment of wastewater? - HCBBS Forum
47. How should the additional pressure due to medium flow resistance be determined? - HCBBS Forum
48. 【Weekly Topic】【Storage & Transportation Version 20160711】 - HCBBS Forum
49. Hengli Petrochemical and Yingkou Zhonghai Petrochemical - HCBBS Forum
50. Is a change to the process feasible? - HCBBS Forum
51. Diaphragm model of diaphragm coupling - HCBBS Forum
52. Regarding the vacuum insulation of the surface cooler - HCBBS Forum
53. Selection of refrigerant for the condenser - HCBBS Forum
54. How to improve the processing capacity of a distillation tower - HCBBS Forum
55. Regarding the risks associated with installing the ITCC system offline - HCBBS Forum
56. 【Daily Question】Deep Processing 20160710: What is saturated vapor pressure? - HCBBS Forum
57. Discussion on the rotation direction of rotating equipment - HCBBS Forum
58. Selection and design of transfer devices for tank farms - HCBBS Forum
59. Treatment of sulfur recovery exhaust gas - HCBBS Forum
60. A look at 10 entrepreneurs who achieved success late in life: It’s never too late to start a business - HCBBS Forum
61. Questions regarding registration for the exam - HCBBS Forum
62. How much does it cost to produce hydrogen using PSA pressure swing adsorption for coke oven gas? - HCBBS Forum
63. Lubricating oil unit - HCBBS Forum
64. Sign-in record post from July 12, 2016 - HCBBS Forum
65. 12 questions on head related to 11 years of professional knowledge - HCBBS Forum
66. Circulating water system - HCBBS Forum
67. 【Q&A Question 083】2016.07.12 - HCBBS Forum
68. Temperature of circulating water in lithium bromide chiller - HCBBS Forum
69. Biogas provides carbon dioxide and enhances temperature and light - HCBBS Forum
70. Requirements for water quality in circulating cooling water and problems encountered during operation - HCBBS Forum
71. Design of small steam turbine exhaust pipelines - HCBBS Forum
72. How to inspect catalytic cracking flap valves - HCBBS Forum
73. Regarding hydrocracking interlocks - HCBBS Forum
74. In atmospheric and vacuum distillation units, are there any precedents of using a vacuum system to blend catalytic slurry? - HCBBS Forum
75. Auxiliary cabinet grounding configuration - HCBBS Forum
76. Flange electric heating element, finned electric heating element - HCBBS Forum
77. 【Daily Topic】【Engineering Version 20160712】 - HCBBS Forum
78. Is the power consumption the same for each stage of a four-stage reciprocating compressor? - HCBBS Forum
79. What is the purpose of that temperature automatic regulator at the pump outlet of the water station in a reciprocating compressor? - HCBBS Forum
80. Which company has superior technology for coal-to-syngas production? - HCBBS Forum
81. Graphic and textual tutorial on heating furnace knowledge training - HCBBS Forum
82. Why does green color appear when foul water or black water is mixed with polyaluminum chloride? - HCBBS Forum
83. What kind of tube is an electrical HVC tube? - HCBBS Forum
84. Are printed materials allowed for the Shanghai registered chemical engineer exam? - HCBBS Forum
85. Case 17 from 10 years ago - HCBBS Forum
86. Organic amine desulfurization status - HCBBS Forum
87. Talk about my feelings about taking on safety work - HCBBS Forum
88. 【Daily Question】Deep processing of the polypropylene plant on 20160706? - HCBBS Forum
89. I have a question I don’t understand - HCBBS Forum
90. Issues regarding the preliminary review for application to the Chemical Engineering major (Tianjin): photo tools - HCBBS Forum
91. Precautions for shutting down a high-temperature condensate pump and replacing the mechanical seal, including pressure relief, etc - HCBBS Forum
92. Ammonia pipeline valves - HCBBS Forum
93. Solving the color problem of gasified phenol - HCBBS Forum
94. List of 56 safe working distances - HCBBS Forum
95. Let’s all pray together for our fellow citizens who have suffered from the floods, hoping that they can return to their homes soon! - HCBBS Forum
96. Can naphtha produced in larger quantities by hydrocracking units be used as a feedstock for straight-run diesel? - HCBBS Forum
97. 11 years of professional expertise 47 - HCBBS Forum
98. What does the design temperature of a pump refer to? - HCBBS Forum
99. I would like to ask fellow sailors for advice on choosing between ball valves and gate valves - HCBBS Forum
100. The SBR does not perform well in terms of treatment efficiency (it is mainly used for treating ammonia nitrogen); it is used to treat landfill leachate - HCBBS Forum