English — Forum #723 (Page 609/642)

1. Is it acceptable for the entity issuing the stamp for the Chemical Engineering major examination to have a \"Class B qualification for chemical engineering design\"? - HCBBS Forum
2. Questions regarding the qualification review after registering for the chemical engineering exam - HCBBS Forum
3. Temperature and pressure for isothermal dehydrogenation - HCBBS Forum
4. Discussion on the issue of short-term shutdown of a single cell in ion-exchange membrane electrolyzers - HCBBS Forum
5. Steam injection into furnace tubes - HCBBS Forum
6. Help me out with getting qualified to take the exam for Certified Chemical Engineer - HCBBS Forum
7. Some flow meter selection tips that users must know - HCBBS Forum
8. The meaning of DIPA21TAT4 - HCBBS Forum
9. Key technical points for the installation and use of mechanical seals - HCBBS Forum
10. What are the functions of the various components of lubricating oil in large-scale units? - HCBBS Forum
11. Reward offer: For each item related to the types, amounts, manufacturers, and effectiveness of terminators used in PVC polymerization, at least 3 rewards will be given! ! ! - HCBBS Forum
12. With heavy rainfall, how should the factory area manage water drainage? - HCBBS Forum
13. Seeking help with vibration issues in the boiler feed water pump - HCBBS Forum
14. Does the presence of copper foil in the middle of a burst zha composite panel affect its usability? - HCBBS Forum
15. Does anyone have any information on steam generators? Urgent! - HCBBS Forum
16. Hydrogenation technology for dye intermediates - HCBBS Forum
17. How to calibrate a sulfuric acid concentration meter - HCBBS Forum
18. Self-calibration issue of BC-class instruments in quality certification - HCBBS Forum
19. Tips for selecting reducers for hydraulic lifters - HCBBS Forum
20. Dangers of too rapid descent of the floating roof in oil tanks - HCBBS Forum
21. Current Situation and Prospects of the Engineering Consulting Industry - HCBBS Forum
22. Is the moisture on an air-dried basis of coal the same as the internal moisture of coal? - HCBBS Forum
23. Qualification and layout of biofuel furnaces - HCBBS Forum
24. How do people usually calculate pipe fittings? - HCBBS Forum
25. What is a worm gear reducer and what is the difference between it and a worm reducer? - HCBBS Forum
26. Are there any manufacturers that specialize in the design and production of plate towers? Please get in touch with me! ! ! - HCBBS Forum
27. Reactor pressure and sealing issues - HCBBS Forum
28. Sodium hypochlorite preparation for acetylene purification process - HCBBS Forum
29. Selection of motor control cabinets - HCBBS Forum
30. Should the cylinder be made of sheet material or tube material? - HCBBS Forum
31. Was the 15CrMo material removed in API 941? - HCBBS Forum
32. **Plan for shutting down chemical production facilities - HCBBS Forum
33. Ask fellow netizens to vote in support – reward with 5 wealth points - HCBBS Forum
34. Connection between cable trays and conduit pipes - HCBBS Forum
35. Relevant **specifications for level switches - HCBBS Forum
36. I suggest creating a literature section - HCBBS Forum
37. Daily Question June 25, 2015 (EIA Discussion): 3 Wealth points for replies, plus 5 Wealth points for correct answers - HCBBS Forum
38. 【Serial】The Growth Story of a Chemical Engineering Designer-51 - HCBBS Forum
39. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 235 - HCBBS Forum
40. I would like to inquire about the qualifications required to become a registered public equipment engineer - HCBBS Forum
41. Equipment Doctor: Functions and Maintenance Management of Steam Traps - HCBBS Forum
42. It is recommended to add a posting section - HCBBS Forum
43. 【Daily Question】July 4 – Judge the control system - HCBBS Forum
44. Let’s discuss how to drain the catalyst in a heavy oil catalytic regenerator during shutdown - HCBBS Forum
45. How to determine the opening degree of a butterfly valve? - HCBBS Forum
46. Questions about DAVY methanation - HCBBS Forum
47. How to reduce the combustibility of slag in coal-fired boilers. - HCBBS Forum
48. Discussion on on-site management by workshop process engineers during the project construction phase - HCBBS Forum
49. What causes vibration fluctuations in motors? - HCBBS Forum
50. Connection methods for long-distance crude oil pipelines other than welding - HCBBS Forum
51. Is the material of the carbon steel storage tank Q235 or 20G? The storage solvents are ethanol, 98% concentrated sulfuric acid, etc - HCBBS Forum
52. Narrow-range consolidation; fluctuations in the PVC market - HCBBS Forum
53. What type of valve body provides the best regulation function? - HCBBS Forum
54. The issue of current efficiency in insoluble lead anodes - HCBBS Forum
55. Does a collection tank require a hydraulic retention time? Isn’t its purpose simply to collect water? Beginners don’t understand this; please provide an explanation - HCBBS Forum
56. 【Daily Question】Chemical Engineering Principles 096: Absorption Process (July 1) - HCBBS Forum
57. What is the purpose of the small windmill on the utility pole? - HCBBS Forum
58. Is it required that the oxygen valve not be a quick-opening valve? Is there a specified speed for starting quickly? - HCBBS Forum
59. Should battery forklifts in warehouses be charged with 220V or 380V? - HCBBS Forum
60. Seeking help regarding compressor surge system - HCBBS Forum
61. Ventilation issues in confined spaces - HCBBS Forum
62. What will people’s lifestyle be like in ten years? - HCBBS Forum
63. Film: The Magic of Organizing Life that Makes Your Heart Flutter - HCBBS Forum
64. The electric slide table can move in multiple directions simultaneously through a combination of axes - HCBBS Forum
65. Needle valves with a passage diameter of less than Φ3 - HCBBS Forum
66. How to identify pipeline materials in a PID diagram - HCBBS Forum
67. The function of the scraper in the sedimentation tank of the gasified wastewater treatment section - HCBBS Forum
68. Safety speed for lifting of internal floating roof - HCBBS Forum
69. What to do if the actually purchased materials do not match the drawings? - HCBBS Forum
70. Who has the most say in hiring employees for chemical production? - HCBBS Forum
71. It’s always been Hai Chuan in the first grade – how does one upgrade? - HCBBS Forum
72. Treatment of organic wastewater containing sulfate ions, and treatment of the hydrogen sulfide generated - HCBBS Forum
73. Heat transfer calculations for flue gas condensers - HCBBS Forum
74. 【Daily Question】20150703 Knowledge on Fan Classification (Reply + 2 Wealth points for a correct answer, +3 Wealth points additionally) - HCBBS Forum
75. On the utilization of low-calorific-value gas - HCBBS Forum
76. What does “tower” mean in tower equipment, and why isn’t it called by another name? - HCBBS Forum
77. Job hunting for first-class construction engineers, job hunting for national cost estimators - HCBBS Forum
78. How to use EDR to calculate the Aspen tower reboiler - HCBBS Forum
79. Treatment of aluminum trichloride aqueous solution as a catalyst - HCBBS Forum
80. Use of conversion catalysts - HCBBS Forum
81. LBJ’s style of taking on an entire team by himself will eventually ruin him! - HCBBS Forum
82. Impeller arrangement in multi-stage centrifugal pumps - HCBBS Forum
83. Issues regarding the flange bolt holes of mobile pressure vessels - HCBBS Forum
84. Don’t want to work in the chemical industry; please wake me up~ - HCBBS Forum
85. Why does the sample turn yellow after being washed with cadmium sulfate for catalytic gasoline? - HCBBS Forum
86. A post with water every day for a refreshing morning! - HCBBS Forum
87. MTO quench water centrifugal separation catalyst particles - HCBBS Forum
88. Heat exchanger Leak Path (minimum leakage path size) - HCBBS Forum
89. Calculation of the area of the two high-temperature heaters - HCBBS Forum
90. Are there any specific requirements and relevant standards regarding the length of the sampling pipelines in CEMS systems? - HCBBS Forum
91. Are there breathing holes designed on the ammonia tank? - HCBBS Forum
92. What are some good solutions for evacuating the bottom of a negative pressure tower using a pump? - HCBBS Forum
93. 【Daily Question】July 5: During the operation of a condenser in a condensing steam turbine, what does a change in the terminal difference indicate? - HCBBS Forum
94. There is a resistance of 6 ohms between points b and c of the thermistor; this is a problem, right? - HCBBS Forum
95. I suddenly noticed that all the download points have been changed to 2 points - HCBBS Forum
96. Differences between asset management systems and ERP - HCBBS Forum
97. Working principle of electromagnetic flowmeters - HCBBS Forum
98. I’m seeking advice from fellow sailors,,,,, - HCBBS Forum
99. Wiring issues with ASCO solenoids - HCBBS Forum
100. I have a question regarding fan startup, specifically the jacking oil pump. - HCBBS Forum