English — Forum #723 (Page 296/642)

1. Regarding heat pumps, where does the extra energy come from? - HCBBS Forum
2. Methanol section: One question per day. What are the hazards of steam carrying water? 2016.04.18 - HCBBS Forum
3. Tips for pasting equipment layout drawings onto architectural drawings in AUTOCAD - HCBBS Forum
4. There is a joint at the bottom of the liquid dropping plate in the tower internals; the length of this joint is about 65 mm. Is this acceptable? Please give me some advice - HCBBS Forum
5. @How can others not see it if it’s there? - HCBBS Forum
6. One question per day; those who answer correctly receive 5 wealth points, and those who participate receive 2 wealth points； Question 287 - HCBBS Forum
7. 【Daily Question No. 157】April 18, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
8. hydrocracking - HCBBS Forum
9. “Haichuan Irrigation Co., Ltd. Convenience Store” 322: I’m going all out for the energy-saving initiatives in the petrochemical area and to boost popularity in the recreational area - HCBBS Forum
10. At what temperature do the shaft bearings of large multi-stage centrifugal pumps reach a level that causes bearing burnout? - HCBBS Forum
11. What is the difference between pressure-reducing and external pressure-sensing self-regulating valves? - HCBBS Forum
12. How to determine the split points for step control - HCBBS Forum
13. Status of the inlet and outlet of the circulator during hydrocracking power outage - HCBBS Forum
14. Gasoline-water soluble alkali - HCBBS Forum
15. 【Daily Question No. 122】April 15, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
16. Does a change in the temperature of the gas in the pipeline affect the pipeline pressure? - HCBBS Forum
17. Reviewing the Old to Discover the New (Series 12) - HCBBS Forum
18. 【MTBE Plant】Reasons for the failure of residual C4 corrosion testing in the MTBE plant - HCBBS Forum
19. Is it easy to switch from nuclear power design to thermal power or petrochemicals? - HCBBS Forum
20. How is a 380V system grounded? - HCBBS Forum
21. I need a design basis data sheet for a diesel hydrogenation unit - HCBBS Forum
22. 【Daily Topic】【Civil Engineering Version 20160416】 - HCBBS Forum
23. How to send digital signals to the PLC and then to the DCS - HCBBS Forum
24. Does anyone have VISIO 2003? Please share, thanks! - HCBBS Forum
25. Hazardous waste material ratios, formulation, waste, reasons - HCBBS Forum
26. Regarding the LTD instruments for LNG storage tanks, thank you. - HCBBS Forum
27. Flange repair welding - HCBBS Forum
28. Photos of corrosion at the MECS spent acid regeneration site; please, fellow enthusiasts, help by sharing them - HCBBS Forum
29. Registered Consulting in 2016 - HCBBS Forum
30. Could a dedicated section for child-rearing and early education be created? - HCBBS Forum
31. I want to learn the craft from a master - HCBBS Forum
32. Is it safe to weld the corresponding joints of air ducts under pressure and make openings under pressure? Is a relevant qualification required for this task? - HCBBS Forum
33. The Leisure Zone is continuously recruiting moderators and welcomes Lu Doujiang to join the management team of the Leisure Zone - HCBBS Forum
34. Occupational Health Daily Question 4.14: Participate for a prize; 5 points for each correct answer, plus an additional 5 points - HCBBS Forum
35. 【Daily Topic】【Electrical Edition 20160408】 - HCBBS Forum
36. Ceramic ball bulk density - HCBBS Forum
37. Working principle of air-source heat pump hot water systems - HCBBS Forum
38. The environmental impact assessment for coal-to-gas production has finally been approved, but the owners’ troubles have just begun - HCBBS Forum
39. Calculation problem of thermal expansion in pipelines - HCBBS Forum
40. Sulfur Daily Question, April 19------5 rewards for participation, 10 rewards for correct answers - HCBBS Forum
41. Do people think the Rockets can be the underdog to make it through the playoffs this year? - HCBBS Forum
42. Welder project - HCBBS Forum
43. 【Daily Topic】【Production Version 20160418】 - HCBBS Forum
44. What are the reasons for fluctuations in the stabilizer of a catalytic cracking unit? - HCBBS Forum
45. Occupational Health Daily Question 4.24: Participate for a prize; 5 questions, and an additional prize for answering 5 correctly - HCBBS Forum
46. What causes the large-scale, regular fluctuations in the valve during startup? - HCBBS Forum
47. Roots blower - HCBBS Forum
48. What does DV stand for? - HCBBS Forum
49. Handover in the project – tasks of the design party - HCBBS Forum
50. 【Weekly Topic】【Home Version 20160421】 - HCBBS Forum
51. 【Daily Question】April 17, 2016 – Participate to earn +2 wealth； +3 to 8 wealth for correct answers - HCBBS Forum
52. Seeking instrument data, drawings, and wiring diagrams - HCBBS Forum
53. Pressure in the main gas column and the butane removal reflux tank - HCBBS Forum
54. Graphite falling film absorption - HCBBS Forum
55. Discussion on establishing an alkylation technology version - HCBBS Forum
56. Daily Question Summary Post for the Security Technology Exchange Forum - HCBBS Forum
57. 【Summer is approaching – let me talk about my favorite few cold dishes】: Pickled Bitter Gourd - HCBBS Forum
58. Where lies the innovation force in the chemical industry? - HCBBS Forum
59. 【Where Is Spring? Season 2】004: Tianhai Crabapple and Peach Blossoms in Changhong Park + Tianjin + hamiltontai - HCBBS Forum
60. 【Daily Topic】【Civil Engineering Version 20160415】 - HCBBS Forum
61. What is the trip value for burner pressure difference? - HCBBS Forum
62. 【Daily Topic】【Electrical Edition 20160418】 - HCBBS Forum
63. Four Questions on Environmental Access Requirements for Modern Coal Chemical Industry: Are the Critical Provisions Unclear? - HCBBS Forum
64. Eligibility requirements for exam registration - HCBBS Forum
65. What kind of travel do you like? - HCBBS Forum
66. What standards are used for designing small-sized pressure vessels? - HCBBS Forum
67. Regarding the range issue of diaphragm double-flange transmitters - HCBBS Forum
68. Regarding the grounding for 220VAC electrical power supply - HCBBS Forum
69. Resin desorption is carried out in 2 methanol tanks; how should the fire separation distance be determined? - HCBBS Forum
70. The difference between FRP and FRP/PVC - HCBBS Forum
71. Installation of the flame arrester pipeline - HCBBS Forum
72. What equipment and processes are used to transport tar residue? - HCBBS Forum
73. Pressure Vessel Auditor Examination - HCBBS Forum
74. Problems with Inconel 600 castings and valves - HCBBS Forum
75. Tens of thousands of farmers in Xiangyun County, Yunnan, now have access to biogas - HCBBS Forum
76. 30 reasons for bearing noise - HCBBS Forum
77. Regarding the vibration damping of centrifugal water pumps - HCBBS Forum
78. The impact of saltwater pH changes on production - HCBBS Forum
79. 【Weekly Topic】In-depth Analysis: Alkylation Units Currently in Operation or Under Construction as of the 2nd Week of April 2016 - HCBBS Forum
80. **Standard for ammonia alarm values - HCBBS Forum
81. Problems with the high-level oil tank in centrifugal compressors - HCBBS Forum
82. What are the specific requirements for particle size distribution in fluidized bed gasifiers? - HCBBS Forum
83. [Petroleum Weekly] Issue 10, April 18, 2016 (Summary of Recent Petroleum Industry Activities) - HCBBS Forum
84. 【Daily Topic】【Electrical Edition 20160417】 - HCBBS Forum
85. 【Weekly Topic】【HVAC Version 20160414】 - HCBBS Forum
86. Who knows what’s displayed in the menu that appears when all 3 buttons on the Siemens positioner are pressed at the same time? - HCBBS Forum
87. I have a question and would appreciate your help - HCBBS Forum
88. On the issue of water/steam injection into the flue gas at the outlet of the regenerator in catalytic cracking units to prevent overheating - HCBBS Forum
89. Nitrogen system requirements - HCBBS Forum
90. Preparation of sodium hydroxide standard solution - HCBBS Forum
91. Issue of the outward extension length of the central nozzle on the head - HCBBS Forum
92. Low water production, seeking help - HCBBS Forum
93. What is the cause of blackening on the wall of the deoxygenated water pipeline? - HCBBS Forum
94. 2.5 mm smaller than the outer edge of the flange - HCBBS Forum
95. One question per day; those who answer correctly receive 5 wealth points, and those who participate receive 2 wealth points； Question 283 - HCBBS Forum
96. The industry standard for product quality of \"Coal-to-Natural Gas\" was officially implemented in June this year - HCBBS Forum
97. Safety Technology Exchange Edition: Daily Question (2016.4.21) - HCBBS Forum
98. Safety distance for acetic acid storage tanks, material selection - HCBBS Forum
99. Does chromium-nickel steel turn red at a temperature of 500 degrees? - HCBBS Forum
100. A fish in the desert, the valve is clear – is it a person? - HCBBS Forum