English — Forum #723 (Page 599/642)

1. On the calibration of online combustible gas monitors - HCBBS Forum
2. Selection of superheaters for sulfuric acid production - HCBBS Forum
3. I’m seeking help from experts regarding spiral corrugated metal hoses - HCBBS Forum
4. 【Daily Question】2015.07.12 Austenitic stainless steel (first 100 replies + 2 wealth points; additional 3–8 wealth points for correct answers) - HCBBS Forum
5. Setting of the low current protection for centrifugal pumps - HCBBS Forum
6. What are the brands of valve electrical components? - HCBBS Forum
7. Cable threading through conduit with wire glands - HCBBS Forum
8. Issues regarding the guidelines for compiling safety special sections - HCBBS Forum
9. Shielded pump auxiliary impeller - HCBBS Forum
10. 【Daily Question】2015.07.11 Main stressed components (top 100 replies + 2 wealth points; additional 3–8 wealth points for correct answers) - HCBBS Forum
11. Common problems and solutions for industrial flow switches - HCBBS Forum
12. The problem of excessive vibration at the water pump inlet and the inlet valve - HCBBS Forum
13. Issues regarding the welding procedure qualification for tube and sheet joints - HCBBS Forum
14. Increase in top cooling temperature - HCBBS Forum
15. Could someone please advise me: can the current from an inverter be used to directly calculate the electricity consumption? - HCBBS Forum
16. Sulfur market trends on July 8 - HCBBS Forum
17. Heat exchange equipment - HCBBS Forum
18. How to solve pipeline vibration - HCBBS Forum
19. Shutdown handling of the fractionation tower - HCBBS Forum
20. Regarding the selection of flow meters - HCBBS Forum
21. Should the complete combustion reaction in hydrogen sulfide incinerators be considered a hazardous chemical process that requires strict supervision? - HCBBS Forum
22. The steel structure is made of Q235B material, and E4319 welding electrodes are required per the design specifications. Can it be changed to E4303 welding rod? - HCBBS Forum
23. What about the pressure drop and outlet temperature in the condenser design of Aspen? - HCBBS Forum
24. Leakage in the diaphragm of the control valve - HCBBS Forum
25. Is it necessary to install both a vent valve and a water seal in an acidic water storage tank? - HCBBS Forum
26. Discussion finished - HCBBS Forum
27. Regarding the pressure reduction performance and flow rate performance of pressure relief valves, and what are the differences from flow control valves? Urgent! Urgent! Urgent! ! ! - HCBBS Forum
28. Regarding the issue of misalignment variables for the cylinder and head assembly - HCBBS Forum
29. What are the water quality requirements for evaporative air cooling? - HCBBS Forum
30. Coking plant residual ammonia water filter - HCBBS Forum
31. 【Daily Question】7.14 Coating Materials Reply +2； To +3 ； Perfect +5 - HCBBS Forum
32. Be careful of lightning strikes during the thunderstorm season - HCBBS Forum
33. One question per day - HCBBS Forum
34. Urgently need past training notices regarding pressure vessels! ! - HCBBS Forum
35. Question 18, afternoon of day 2, 2014 - HCBBS Forum
36. Is the S content in the methanol-depleted stream from the regenerator of the Lindlar process low-temperature methanol wash affected by season? - HCBBS Forum
37. Woken up by heavy rain at 3:15; played with my phone to watch some jokes - HCBBS Forum
38. Pneumatics DZ20-2-52/200 sequence valve - HCBBS Forum
39. First aid measures for sulfuric acid - HCBBS Forum
40. Regular inspection of enamel-lined equipment - HCBBS Forum
41. May I ask which provinces are now able to obtain certification for survey and design services? By the way, I’d like to express my disapproval of **’s work efficiency. - HCBBS Forum
42. Is the Q71F type wafer ball valve an Italian-made ball valve? - HCBBS Forum
43. Urgent issue: leak in air cooler - HCBBS Forum
44. Is it necessary to keep the sewage pipe of the water cooling tower at a certain opening degree? - HCBBS Forum
45. Design of liquid (gas) distributors - HCBBS Forum
46. Let’s share the names of the main current trends - HCBBS Forum
47. Which components in naphtha increase methane production and reduce ethylene production? - HCBBS Forum
48. A question regarding the welding test plate of sphere tank 12337 - HCBBS Forum
49. Modification of the publication time setting - HCBBS Forum
50. How much inorganic amine is considered normal in MDEA desulfurization? - HCBBS Forum
51. Anti-corrosion coating inside atmospheric pressure storage tanks - HCBBS Forum
52. What is the composition of Caffey reagent? - HCBBS Forum
53. Temperature of absorbent oil returning to the tower - HCBBS Forum
54. Only login through the app is possible - HCBBS Forum
55. HYSYS multi-stage compressor - HCBBS Forum
56. Be alert to typhoons - HCBBS Forum
57. Why is it not necessary to provide a high-point vent for pipes with a nominal diameter of less than 40 mm? - HCBBS Forum
58. Some truths one must understand in the workplace - HCBBS Forum
59. What is the typical pressure difference between the fuel oil and the atomization steam in a heating furnace? - HCBBS Forum
60. Scaling of waste boiler tubes in the spent acid regeneration unit - HCBBS Forum
61. When my wife is pregnant, it’s like she’s an empress – I have to get up in the middle of the night. . . - HCBBS Forum
62. Substances that affect the flash point of diesel - HCBBS Forum
63. Who has information on equipment related to drilling? - HCBBS Forum
64. Do you sleep at work? What are the penalties for sleeping in the factory? - HCBBS Forum
65. The posting time keeps changing frequently – is it the White Bone Spirit? It made me type so many words for nothing - HCBBS Forum
66. Selfless feedback from a chemical engineer to equipment designers - HCBBS Forum
67. The measured net gas flow rate is too low - HCBBS Forum
68. Done L Done L Done L - HCBBS Forum
69. Could anyone provide a comparison of LNG refrigerant compressor options? - HCBBS Forum
70. PVC market trends on July 8 - HCBBS Forum
71. For preparing amine solutions, do you use deionized water or deoxygenated water in your factory? - HCBBS Forum
72. Liquid level fluctuation problem in the fractionation tower - HCBBS Forum
73. Mitsui Cup Progress - HCBBS Forum
74. What kind of downstream processors should general industrial waste from factories be transferred to? - HCBBS Forum
75. Which are the well-known domestic manufacturers of single-stage double-suction pumps? Which one has stronger competitiveness? - HCBBS Forum
76. Are there heavy metals in printing and dyeing wastewater? If so, which work section generated it? - HCBBS Forum
77. Seeking advice on quench water emulsification - HCBBS Forum
78. 【Daily Question】 July 16th: Where is the soot blower located in the heating furnace? - HCBBS Forum
79. Are issues such as blast venting area, fire compartments, and evacuation stairs considered in fully open-type installations? ? - HCBBS Forum
80. Question: What are the differences between Siemens MM420, 430, and 440 frequency converters? - HCBBS Forum
81. Determination of the overflow opening size for atmospheric pressure rectangular tanks - HCBBS Forum
82. Are the job listings on 58.com reliable? - HCBBS Forum
83. Specific differences between SMC positioners IP 8000 and 8100 for valve pneumatic actuators - HCBBS Forum
84. Has anyone from New Oriental’s teaching assistant team been there? - HCBBS Forum
85. 【Daily Question】July 7 – Centrifugal pump flow rate issue (First 80 participants get +2 points; an additional 3–8 points for correct answers...) - HCBBS Forum
86. Fixed carbon control parameters for water-coal slurry gasification - HCBBS Forum
87. Alkylation plant refrigeration compressor - HCBBS Forum
88. Ammonium diphosphate with sulfur particles - HCBBS Forum
89. One question per day (2 wealth points for each reply) - HCBBS Forum
90. Propylene oxide storage tank - HCBBS Forum
91. A brief history of gasoline anti-knock agents - HCBBS Forum
92. How to cook organic ingredients in the healthiest way - HCBBS Forum
93. HYSYS plate-fin heat exchanger - HCBBS Forum
94. What temperature difference is required for sweating to occur? - HCBBS Forum
95. The relevant webpage for the 2015 Certification Training organized by the Survey and Design Association cannot be accessed - HCBBS Forum
96. The ac800f controller uses the serial port for diagnosis and modification of IP address issues - HCBBS Forum
97. What is the impact of pressure on a weighing instrument? - HCBBS Forum
98. How is the progress of Yichang South Glass’s second-phase polysilicon project? What is the current situation of the company? - HCBBS Forum
99. Looking for software that can open RVM files on 64-bit operating systems - HCBBS Forum
100. Preparations before powering on the control cabinet - HCBBS Forum