English — Forum #723 (Page 336/642)

1. Cleaning of Pall ring packing? - HCBBS Forum
2. How should steam pipelines for turbines be protected during major maintenance? - HCBBS Forum
3. How should the overpressure value of a breather valve be selected? - HCBBS Forum
4. Tower formula: B=2/3EA problem - HCBBS Forum
5. Specializing in water pump energy-saving and capacity expansion services - HCBBS Forum
6. 【EPDM】Contact information for EPDM technology patent holders - HCBBS Forum
7. 20160308 One question per day - HCBBS Forum
8. delayed coking - HCBBS Forum
9. I would like to ask my colleagues! What are the staffing issues for mechanical, electrical, and instrumentation personnel in a coking plant with an annual production capacity of 600,000 tons? - HCBBS Forum
10. The sludge settles extremely poorly - HCBBS Forum
11. Vibration Cause Analysis of Pipe Spring Supports and Equipment Constant-Force Hangers - HCBBS Forum
12. In what situations are 380V 600kW three-phase asynchronous motors used? - HCBBS Forum
13. 【Daily Topic】【Production Version 20160309】 - HCBBS Forum
14. Haichuan Gratitude Season -- My Mentor, Lao Liao【Production Area 011】 - HCBBS Forum
15. Is a p-xylene plant with a capacity of 600,000 tons per year considered a large-scale plant? - HCBBS Forum
16. 【Daily Question】March 9, 2016: Participate to earn +2 wealth； +3 to 8 wealth for correct answers - HCBBS Forum
17. Electric actuator has fallen off - HCBBS Forum
18. Differential pressure transmitter issues with steam metering and condensate water - HCBBS Forum
19. 【Joint Study*】【Electrical Version 20160305】 - HCBBS Forum
20. What are the current discrepancies between the construction of bimetallic full-volume tanks and relevant regulations? - HCBBS Forum
21. 【Basic Knowledge of Occupational Health】Occupational Hazards - HCBBS Forum
22. 【Daily Question No. 135】March 16, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
23. Control of water supply temperature in hydrogen production deoxygenation tank - HCBBS Forum
24. One Question per Day on Synthetic Ammonia (Series 36) - HCBBS Forum
25. Why is the normal flow rate of a centrifugal pump less than its rated flow rate? - HCBBS Forum
26. What temperature range can the diaphragm box of an EJA transmitter withstand? - HCBBS Forum
27. Is it possible to switch from gas desulfurization to flue gas desulfurization? - HCBBS Forum
28. A rookie with 10 years of work experience is facing difficulties in both life and work; seeking advice - HCBBS Forum
29. Environmental Protection Daily Post 3.06: Reward for participation is 5 points, plus another 5 points for answering 5 questions correctly - HCBBS Forum
30. 【Daily Topic】【Quality Version 20160315】 - HCBBS Forum
31. How to increase the service life of burners? - HCBBS Forum
32. Accident handling in purification and ammonia synthesis - HCBBS Forum
33. 【Daily Topic】【Civil Engineering Version 20160311】 - HCBBS Forum
34. go on - HCBBS Forum
35. Notice from the General Office of the People’s Government of Shanxi Province on Issuing the List of Key Provincial Projects for 2016 - HCBBS Forum
36. 【Daily Question】 Hydrogenation Sector 2016-03-06 Multiple Choice - HCBBS Forum
37. Weekly Sulfur Review: Prices Continue to Decline Slightly (3.5–3.11) - HCBBS Forum
38. Career planning - HCBBS Forum
39. 9- Necessity of fin separators in the hydrogen recovery membranes of naphtha hydrogenation units & CTL units - HCBBS Forum
40. How many coke ovens does China have in total to date? - HCBBS Forum
41. Hydraulic coupler - HCBBS Forum
42. We are seeking top sales professionals - HCBBS Forum
43. 【Daily Question No. 103】March 15, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
44. 【Basic Knowledge of Occupational Health】Occupational Exposure Limits - HCBBS Forum
45. Setting Sail in Adversity – 300,000-ton sulfuric acid plant starts operations successfully - HCBBS Forum
46. Sulfuric acid production - HCBBS Forum
47. 【Daily Question No. 131】March 10, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
48. Is the vent line of a pressure vessel a pressure pipeline? - HCBBS Forum
49. Long-neck nozzle flow meter - HCBBS Forum
50. Who has the table of components in natural gas flue gas? - HCBBS Forum
51. Freelancer～Chemical Engineering Design - HCBBS Forum
52. Questions regarding process design: How to determine whether the wastewater treatment system requires insulation? - HCBBS Forum
53. A 4-day emergency repair effort for a faulty high-pressure coal slurry pump - HCBBS Forum
54. What is the inlet water temperature for a typical soft water system? - HCBBS Forum
55. In which fields are chillers used? - HCBBS Forum
56. Disposal of waste sulfuric acid resulting from acetylene purification - HCBBS Forum
57. Small-signal rejection for pressure transmitters - HCBBS Forum
58. Ratio Analyzer - HCBBS Forum
59. How to read the program of an S7-200 using a touch screen - HCBBS Forum
60. Shahé City in Hebei held a symposium on coal-to-gas projects - HCBBS Forum
61. Regulation issues in steam-replenishing condensing steam turbines - HCBBS Forum
62. 【Chemical Process Operations】According to the \"Detailed Rules for Equipment Inspection in Refining and Chemical Enterprises,\" the temperature difference of the circulating water cooling system must not be less than 6°C; our plant... - HCBBS Forum
63. Haichuan Freelancers’ large-scale “public welfare” event shines brilliantly! Heat exchanger technical exchange version – Please upgrade after management - HCBBS Forum
64. Is it necessary to use a spring washer on the flange of a metal wound gasket when tightening the bolts? - HCBBS Forum
65. 【Basic Knowledge Activity】Professional “Basic Knowledge” in the petrochemical industry: What are mechanical impurities in oils and fuels? - HCBBS Forum
66. Colleagues! I would like to ask about the staffing requirements for the mechanical, electrical, and instrumentation departments in a coking plant with an annual production capacity of 600,000 tons... - HCBBS Forum
67. 【Basic Knowledge Activity】Professional “Basic Knowledge” in the petrochemical industry: What is activation energy? - HCBBS Forum
68. Venting issues of centrifugal dump pumps - HCBBS Forum
69. CONCOA automatic switching pressure relief valve - HCBBS Forum
70. I need advice on thawing water pipes; please, experts, I’m really frustrated because of an exam today - HCBBS Forum
71. Generator high-voltage throttle fault - HCBBS Forum
72. The ethanol content in the methanol distillation product is high; how to adjust it? - HCBBS Forum
73. Sign-in record post from March 5, 2016 - HCBBS Forum
74. The issue of setting up smoking rooms in refined oil storage companies - HCBBS Forum
75. Methods for manually determining the composition of gas components - HCBBS Forum
76. Boiler expansion joint - HCBBS Forum
77. Can biogas be released directly? - HCBBS Forum
78. Reinforce the device for reprocessing diesel - HCBBS Forum
79. Should shims be used for the flange bolts of heat exchangers? - HCBBS Forum
80. The Youyi Shui software calculates the specific enthalpy of superheated steam; the temperature is 275 degrees in all cases. Why is the pressure higher yet the specific enthalpy lower? - HCBBS Forum
81. Can the white oil used in the mechanical seal of the slurry tank cause gas blockage? - HCBBS Forum
82. We sincerely invite expert physicians to provide services (base salary of 100 + commission) - HCBBS Forum
83. 【Basic Knowledge of Occupational Health】: Labor Capacity Assessment - HCBBS Forum
84. Pressure unit conversion - HCBBS Forum
85. 【Basic Knowledge Activity】Professional “Basic Knowledge” in the petrochemical industry: What is the dew point of petroleum products? - HCBBS Forum
86. Sulfur Daily Question: March 10, 2016. Participating earns 3 wealth points, while better answers yield 8 to 15 wealth points. - HCBBS Forum
87. Can the cooling water in a plate heat exchanger enter from the top and exit from the bottom? - HCBBS Forum
88. Sign-in record post from March 11, 2016 - HCBBS Forum
89. Operating pressure for RSB gaskets - HCBBS Forum
90. Oxygen content issue with Yokogawa EJA ZR22G zirconia in Japan - HCBBS Forum
91. Factors Affecting the Determination of Ammonia Nitrogen by Online Monitoring with Nessler’s Reagent Spectrophotometry - HCBBS Forum
92. Regarding low-pressure saturated steam power generation, the issue of selecting generator sets - HCBBS Forum
93. 【Chemical Process Operations】Issues related to cross-contamination in pipelines - HCBBS Forum
94. Regarding issues with the burners in heat transfer oil furnaces - HCBBS Forum
95. Process design issues - HCBBS Forum
96. Occupational Health Daily Question 3.8: Participate for a prize; 5 correct answers and an additional prize of 5 more - HCBBS Forum
97. 【Weekly Topic】【Engineering Version 20160315】 - HCBBS Forum
98. 【Weekly Topic】【Storage & Transportation Edition 20160307】 - HCBBS Forum
99. Those willing to serve as moderators for the gasification section are invited to apply - HCBBS Forum
100. What type of gasket should be used when the medium is trichlorosilane? - HCBBS Forum