English — Forum #723 (Page 601/642)

1. Does anyone know in what industries n-hexanal can be used? - HCBBS Forum
2. Comparison between digital flame detectors and image flame detectors - HCBBS Forum
3. 【Daily Question】A question about acetylene; it’s quite difficult. +1 wealth for answering, +5 wealth for a correct answer - HCBBS Forum
4. workbench nonlinear buckling analysis - HCBBS Forum
5. Evaporation of liquids in the accident pool - HCBBS Forum
6. Regarding the upgrade from a junior college to a university degree. Asking for the opinions of my friends - HCBBS Forum
7. Introduction to the differences and features between ball valves and globe valves - HCBBS Forum
8. Count of flange pipe plugs in PDSOFT - HCBBS Forum
9. Guiding Opinions on Standardizing Demonstration Projects for Coal-Based Fuels - HCBBS Forum
10. Question regarding water replenishment in the top reflux tank of the amine solution regeneration tower - HCBBS Forum
11. Why do we need to obtain professional titles? - HCBBS Forum
12. Removal by activated carbon suspended in water - HCBBS Forum
13. Weekly topic: 5 Wealth points for those who answer correctly, 2 Wealth points for participation； Question 118 - HCBBS Forum
14. Conversion between cubic and square units - HCBBS Forum
15. Reasons for the blackening of oil on the second and third lines - HCBBS Forum
16. Brief Analysis of the Development Prospects of China’s Heat Exchanger Industry - HCBBS Forum
17. Upgrade notice from this Friday night to Saturday -- access will be closed during the upgrade - HCBBS Forum
18. Guanghui Energy and local authorities in Gansu jointly establish a project for differentiated utilization - HCBBS Forum
19. In which section is information on air coolers AC? - HCBBS Forum
20. High-phosphorus formula pelletizing agent - HCBBS Forum
21. How is the 4 billion Nm3/year coal-to-natural gas project in Shuozhou, Shanxi progressing? - HCBBS Forum
22. Which design institutes can one apply to with a registered engineer title? - HCBBS Forum
23. What is the accuracy of the SICK ultrasonic flow meter 600 in Germany? - HCBBS Forum
24. Chemical plant safety training program - HCBBS Forum
25. Consequences of reversing a screw compressor - HCBBS Forum
26. Help: Looking for manufacturers that repair compressor cranks - HCBBS Forum
27. I’m a beginner in Aspen; I have questions and would like some advice - HCBBS Forum
28. Principles for installing the pump outlet check valve - HCBBS Forum
29. What are the methods for positioning multi-stage pump impellers? What are the different structures of open rings? - HCBBS Forum
30. Materials for pressure vessels and how to design them - HCBBS Forum
31. The issue of COD values in wastewater - HCBBS Forum
32. What are the key factors to consider when selecting a heat transfer oil pump? - HCBBS Forum
33. Pressure test - HCBBS Forum
34. Ratio of upper to lower large springs in the coke oven - HCBBS Forum
35. Let’s share the names of jujubes from different places! - HCBBS Forum
36. Job search: Control engineer with 9 years of experience - HCBBS Forum
37. The battle between cats and dogs – who do you think will win? ! ! - HCBBS Forum
38. Questions regarding the qualification for registered chemical engineers - HCBBS Forum
39. What model should be used to simulate the H2S removal process from coke oven gas in Aspen Plus? - HCBBS Forum
40. Reconsidering Case 14 from the Morning of 2011 - HCBBS Forum
41. As an employee, if you encounter a nagging team leader, how do you deal with his nagging? - HCBBS Forum
42. Why is the motor end on the opposite side in the arrangement of double-row pumps? - HCBBS Forum
43. Which processes involve low-temperature refrigeration - HCBBS Forum
44. Feasibility study report financial analysis software - HCBBS Forum
45. Actual situation on site: Why is the light component at the bottom of the tower? Please provide an explanation - HCBBS Forum
46. What are the output type and measurement range of the pressure controller? - HCBBS Forum
47. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 245 - HCBBS Forum
48. 【Recruitment】Procurement Engineer for Instrumentation Automation — Zhejiang Zhongkong - HCBBS Forum
49. How should the acidic gas emitted from the water seal tank above the raw water tank in the acidic water stripping unit be treated? - HCBBS Forum
50. Are there two pumps for oil inlet and outlet in the oil tank, or just one pump? - HCBBS Forum
51. Exam registration period - HCBBS Forum
52. Calcium sulfate anhydrous manufacturers - HCBBS Forum
53. What could be the reason for the thermal resistance thermometer of the compressor to exceed its range momentarily when the compressor is started? - HCBBS Forum
54. How to treat pulp-making wastewater - HCBBS Forum
55. How to improve team members’ ability to handle accidents - HCBBS Forum
56. A beginner in instrument sales seeking advice - HCBBS Forum
57. Glossary of petroleum additives - HCBBS Forum
58. Fundamentals of Mechanical Principles—The Pre-tightening Problem of 316L Stainless Steel Clamps - HCBBS Forum
59. Guidelines for the Standardized Management of Industrial Hazardous Waste Generating Units--4 - HCBBS Forum
60. Compressor inlet flare vent valve - HCBBS Forum
61. On PDSOFT cylindrical coordinate problems - HCBBS Forum
62. Hydrogenation system pressure issues - HCBBS Forum
63. Texaco gasifier interlock - HCBBS Forum
64. One question per day; those who answer correctly receive 10 wealth points, while participants receive 2 wealth points； Question 249 - HCBBS Forum
65. DCS system DI, DO induction electric treatment - HCBBS Forum
66. Summer has arrived, and there are more cases of heatstroke. Do you know how to deal with it? - HCBBS Forum
67. Weekly topic: 5 Wealth points for correct answers, 2 Wealth points for participation； Question 114 - HCBBS Forum
68. Scale of the vent gas recovery tank - HCBBS Forum
69. Questions regarding registration for the exam - HCBBS Forum
70. Acid gas treatment in hydrogen sulfide stripping tower - HCBBS Forum
71. I really want to work in design, I really want to work on pipeline design, I really want to be a project manager - HCBBS Forum
72. Help needed. Calculation software for heat exchangers~~ - HCBBS Forum
73. Butadiene extraction acetonitrile process - HCBBS Forum
74. Faku Gas Island - HCBBS Forum
75. Those years, those people, that song - HCBBS Forum
76. Discussion on Misconceptions Regarding Membrane Concentration of High-Salt Wastewater Followed by Evaporation for Desalination - HCBBS Forum
77. 【Daily Question】Chemical Engineering Principles 108: Absorption Process (July 13) - HCBBS Forum
78. Urgent! Urgent! Urgent! Could someone help me calculate it? For a pipe diameter of 20 mm, a pressure of 0.6 Mpa, and a medium of methane gas, what is the maximum flow rate that can be achieved... - HCBBS Forum
79. What brand of flow meter is suitable for measuring liquid nitrogen in chemical plants? - HCBBS Forum
80. What can be used to replace solenoid valves - HCBBS Forum
81. Could anyone tell me which companies are the main producers of chlorinated polypropylene in our country, as well as their production capacities? - HCBBS Forum
82. Honeywell R400.2 LAN issues - HCBBS Forum
83. One question per day; those who answer correctly receive 10 wealth points, while participants receive 2 wealth points； Question 250 - HCBBS Forum
84. How to avoid corrosion caused by potential differences resulting from contact between different materials - HCBBS Forum
85. What is purge hydrogen used for? - HCBBS Forum
86. What is the current situation in the environmental protection industry, and which environmental protection companies are the best? How is the salary? - HCBBS Forum
87. For nutrients in the aerobic biological tank, what is a good choice? What are the criteria for PAM testing? - HCBBS Forum
88. Questions regarding pump selection - HCBBS Forum
89. What is the cavitation head of a pump? - HCBBS Forum
90. Can the welding procedure qualification for Q345qD replace that for Q345B? - HCBBS Forum
91. Where can electrical and instrumentation inspectors take the exam to obtain an explosion-proof inspection qualification certificate? - HCBBS Forum
92. How to overcome the newcomer phase? - HCBBS Forum
93. Classification of atmospheric pressure storage tanks with steam heaters - HCBBS Forum
94. Regarding the issue of distillation column reflux - HCBBS Forum
95. How often should a cryogenic liquid pump in oxygen generation equipment be disassembled for inspection? - HCBBS Forum
96. The heat exchanger is leaking; seeking advice on ways to fix the leak - HCBBS Forum
97. How many tons must an electric hoist on top of an LNG storage tank have to be registered? - HCBBS Forum
98. Issues related to the selection of level sensors - HCBBS Forum
99. Dear static equipment designers at the design institute, how have you all been lately? There’s no hope, no way out! - HCBBS Forum
100. Gas flow measurement at low pressure and low velocity, with a pipe diameter of 1000 mm - HCBBS Forum