English — Forum #723 (Page 435/642)

1. Does the flow differential pressure transmitter display flow rate? ? - HCBBS Forum
2. What conditions must the fluid meet when using a standard throttling device for flow measurement? - HCBBS Forum
3. Who can recommend some reputable brands of imported pneumatic gate valves? It’s best to bring along an agency! - HCBBS Forum
4. 【Picture of the Day】12.1 What is the name of the device in this picture? - HCBBS Forum
5. 【Active Participation for Joint Improvement 12.3-12.9】+2 for participation, +3~10 for correct answer - HCBBS Forum
6. MODBUS and 485 communication - HCBBS Forum
7. What is the approximate ratio of methanated hydrocarbons to methane in the production of LNG from coke oven gas? - HCBBS Forum
8. How should a level gauge be installed in a spherical tank for storing liquefied gas? - HCBBS Forum
9. What is the effect of the initial pH of wastewater on the COD removal rate and decolorization rate? - HCBBS Forum
10. Who knows the standards for the oil discharge pipes of the gas-water separation and initial tar separation units used by Xinjiang Guanghui? - HCBBS Forum
11. 16Mn(HIC) forged material simulated post-weld heat treatment test plate - HCBBS Forum
12. How to choose a sight glass for pressure vessels? - HCBBS Forum
13. In a full reflux stabilizer, reducing the temperature at the top of the tower leads to a decrease in the reflux rate – will this be the case? - HCBBS Forum
14. Discussion on this type of mixing device - HCBBS Forum
15. What is safe reliability? - HCBBS Forum
16. Does purifying it to reduce high levels of fluorine and chlorine have any impact on the final acid? - HCBBS Forum
17. Sign-in record post dated November 29, 2015 - HCBBS Forum
18. What causes high hydrogen sulfide levels in exhaust gas? - HCBBS Forum
19. Environmental Protection Daily Question 12.2: Participate for a prize; 3 correct answers and another prize follows - HCBBS Forum
20. What are the characteristics of anti-corrosion coatings for cooling water? - HCBBS Forum
21. I bought a ticket for the train departing from the main station – can I board at an intermediate stop? - HCBBS Forum
22. After a half-month of silence, I’m back. . . - HCBBS Forum
23. Joint Study*1203: +2 wealth for participation, +9 wealth for correct answers - HCBBS Forum
24. NB/T 47003.1 Welded steel pressure vessels – Requirements for welding inspection of vessel walls and bottoms - HCBBS Forum
25. What are the common extremely hazardous (Level 4) media? - HCBBS Forum
26. I would appreciate it if some experts could advise me on which types of valves are most commonly used in CNG filling stations. - HCBBS Forum
27. What is the purpose of crude methanol distillation? - HCBBS Forum
28. Seeking advice on the opening issue of Fisher pneumatic diaphragm control valves - HCBBS Forum
29. ★Specialized Examination for Chemical Engineering ★ — One question per day (2015-12-4) — Points are awarded for participation - HCBBS Forum
30. Do the power distribution room and transformer room need to be equipped with automatic fire alarm systems? - HCBBS Forum
31. 【Daily Question】Chemical Engineering Principles 248: Total Driving Force for Absorption (November 29) - HCBBS Forum
32. Start-up of the purified recycle gas compressor - HCBBS Forum
33. What are the material requirements for multi-layer coiled sheet containers? - HCBBS Forum
34. Non-destructive testing of forged valves - HCBBS Forum
35. Ethanolamine regeneration tower trays - HCBBS Forum
36. Texaco gasification maintenance plan - HCBBS Forum
37. There is hydrogen sulfide gas in the sewage emergency tank - HCBBS Forum
38. Gasoline hydrogenation - HCBBS Forum
39. 20151129 One question per day - HCBBS Forum
40. For boiler design, is it necessary to obtain a certification as a registered engineer? ? - HCBBS Forum
41. Weekly topic: 5 Wealth points for correct answers, 2 Wealth points for participation； Question 230 - HCBBS Forum
42. 【Daily Question】 December 8th: Is a keyboard a type of computer? ? Equipment - HCBBS Forum
43. Do you know that today is International Vegetarian Day? ? - HCBBS Forum
44. How to calculate the Promax sulfur condenser - HCBBS Forum
45. Fluctuations in syngas flow rate in the gasifier - HCBBS Forum
46. Can a Y-type filter be connected directly to a wafer butterfly valve? - HCBBS Forum
47. 【Daily Question】Dec 2, 2015: Participation +2 Wealth； +3 to 8 wealth for correct answers - HCBBS Forum
48. Anaerobic issues - HCBBS Forum
49. Does anyone have software for calculating the weight of pipe fittings? - HCBBS Forum
50. Why does a differential pressure transmitter still need to have its zero point calibrated? - HCBBS Forum
51. Which valves can be directly connected by flanges? - HCBBS Forum
52. 【Caustic Soda Plant】 What is the FLAKING unit? - HCBBS Forum
53. What if it is suddenly determined that the steam valve is still open, causing losses? - HCBBS Forum
54. What are the particularities of safety technologies in methanol production? - HCBBS Forum
55. It’s getting cold; take a look at these warm English sentences to warm yourself up. - HCBBS Forum
56. Hot water pump selection - HCBBS Forum
57. Issues with chemical dosing pumps – seeking answers! Solve your doubts! Please! - HCBBS Forum
58. Let’s discuss what should be done right now - HCBBS Forum
59. EJA diaphragm capsule type issues - HCBBS Forum
60. Installation of water spray cooling system for ethylene oxide storage tanks - HCBBS Forum
61. The PID self-tuning function of DCS? - HCBBS Forum
62. How does a scraper flow meter work? What are its features? - HCBBS Forum
63. How to choose a level gauge for pressure vessels? - HCBBS Forum
64. 【Boiler Weekly Question from November 30 to December 6】Multiple-choice questions - HCBBS Forum
65. On the effects of low temperatures on valves - HCBBS Forum
66. What are the effects of mixing intrinsically safe and explosion-proof wiring in instruments? - HCBBS Forum
67. What is the typical pressure difference in shaft radial transformation furnaces? - HCBBS Forum
68. Issues with measuring negative pressure using a differential pressure level gauge? - HCBBS Forum
69. Can the rich liquid from the sulfur absorption tower be used as a semi-poor liquid in the dry gas desulfurization tower? - HCBBS Forum
70. 【Daily Question】Question from Issue 20151203 - HCBBS Forum
71. What are the supports for vertical containers? - HCBBS Forum
72. Zhejiang (it seems to be Zhoushan) plans to build a large petrochemical complex - HCBBS Forum
73. ★Specialized Examination in Chemical Engineering ★ — One question per day (2015-11-25) — Points are awarded for participation [ - HCBBS Forum
74. Problems with chemical engineering supervision - HCBBS Forum
75. How to measure valve leakage? ? ? - HCBBS Forum
76. Issues with the Aspen preparation solution? ? ? - HCBBS Forum
77. Is shear stress in the tensile test of low-carbon steel a controlling factor? Why? - HCBBS Forum
78. Solutions and practical applications for energy and water conservation in steam pipelines and condensate systems - HCBBS Forum
79. Regarding the issue of pure water circulation in the electrolyzer after a power failure of all power sources - HCBBS Forum
80. Can a centrifugal pump operate at a low flow rate for a long time? - HCBBS Forum
81. Differences between fluidized-bed hydrogenation and suspended-bed hydrogenation - HCBBS Forum
82. 【Daily Question】Question for 20151201 - HCBBS Forum
83. Emergency help - HCBBS Forum
84. What is the design philosophy that uses blasting failure as the failure criterion? - HCBBS Forum
85. What are the main types of failure for pressure vessels? - HCBBS Forum
86. Post on salary payment for the touring team in November 2015 - HCBBS Forum
87. How many are the most basic methods of chemical descaling in actual cleaning? - HCBBS Forum
88. Definition of takeover self-reinforcement - HCBBS Forum
89. The maximum operating pressure is 16 MPaG, and the maximum operating temperature is 80 degrees. What are the standards for selecting pipes and flanges? ! - HCBBS Forum
90. In 10,000 standard air separation units, there is only one filter after the molecular sieve purifier - HCBBS Forum
91. Anti-freezing for solenoid valves in winter - HCBBS Forum
92. On the thermal balance issue of heat transfer oil - HCBBS Forum
93. Upper limits for ammonia nitrogen and sodium salts in biochemical systems - HCBBS Forum
94. Looking for a sales position in Fujian region; willing to work hard and put in effort, hoping to find a platform to do so - HCBBS Forum
95. Need help with the support and hanger issues at the junction of straight pipe sections and elbows - HCBBS Forum
96. Corrosion and leakage prevention issues for the partition walls in phosphatic ammonium fertilizer exhaust gas systems - HCBBS Forum
97. Help – Stranding Machine – Electrical – Control – Automation - HCBBS Forum
98. Turbine shaft seal - HCBBS Forum
99. 【Daily Question】Wastewater Knowledge - 12-4 (2 points for an answer, 5 points for a correct answer) - HCBBS Forum
100. Temperature of hydrogenation fine fractionation tower - HCBBS Forum