English — Forum #336 (Page 35/51)

1. Some of the platform’s creators are of poor quality; all uploaded materials have to be downloaded in RMB. Those who give negative reviews are even abused and forced to delete their posts, and reports don’t work either. Everyone is welcome to discuss this - HCBBS Forum
2. Pipe wall thickness corresponding to different pipe designation numbers - HCBBS Forum
3. Material conveying - HCBBS Forum
4. Container classification standards - HCBBS Forum
5. How to represent static grounding interlock in a flowchart - HCBBS Forum
6. How to eliminate static electricity in non-metallic equipment and pipes - HCBBS Forum
7. Who can help download chemical engineering documents? - HCBBS Forum
8. Help, please! Questions about magnetic level gauges! - HCBBS Forum
9. In the production of hazardous chemicals, care must be taken; preventing freezing and solidification in winter is a key concern - HCBBS Forum
10. Classification of pressure pipelines - HCBBS Forum
11. 【Daily Question】Theoretical Foundation 2021.03.11 - HCBBS Forum
12. Antoine constant of glutarimine - HCBBS Forum
13. Galvanic corrosion is merely the transfer of electrons between metals; why is it still considered a type of corrosion? - HCBBS Forum
14. Brand ranking website - HCBBS Forum
15. I have questions regarding water treatment - HCBBS Forum
16. The height difference of rainwater on the ground is 0.3 meters; how can we determine the flow velocity of the rainwater as it moves from a higher area to a lower one? - HCBBS Forum
17. Open Disc in the P&ID (or other components?) ) intended purpose of design - HCBBS Forum
18. Animated video: 37 principles of chemical reactions and their dangers – Iron rod and copper sulfate. - HCBBS Forum
19. What is the highest concentration of alkaline solution that 316L can withstand at 200 degrees? - HCBBS Forum
20. 【Daily Question】Theoretical Foundation 2021.02.10 - HCBBS Forum
21. 【Daily Question】Theoretical Foundation 2020.09.10 - HCBBS Forum
22. Effects of VOC exhaust gases on EPDM rubber - HCBBS Forum
23. Name of the magazine on engineering design standards - HCBBS Forum
24. Chemical Industry Standard Flange Manual and 3D Database SolidWorks Version - HCBBS Forum
25. 【Daily Question】Theoretical Foundation 2021.03.05 - HCBBS Forum
26. For filtration problems, how to calculate it first at a constant velocity and then at a constant pressure? - HCBBS Forum
27. How to understand the corrosion potential? - HCBBS Forum
28. Sinopec Design and Selection Manual: Reactors, heat exchangers, pumps, containers, dust collectors, glass-lined pressure vessels – one complete book - HCBBS Forum
29. 【Daily Question】Theoretical Foundation 2020.07.10 - HCBBS Forum
30. Chemical Engineering Theory - HCBBS Forum
31. 197-Hydrogen peroxide project distillates heavy aromatic hydrocarbons and TOP’s original wire mesh defoamer baffle demister is transformed into a feather leaf separator - HCBBS Forum
32. 【Daily Question】Theoretical Foundation 2021.02.19 - HCBBS Forum
33. Problems with the theoretical calculations of the flash evaporation module - HCBBS Forum
34. Can buried gas pipelines be laid in the same trench as water supply pipelines? - HCBBS Forum
35. 【Daily Question】Theoretical Foundation 2020.09.14 - HCBBS Forum
36. Is there a time limit required before moving to industrial production once the pilot project of the first set of equipment is operating stably? - HCBBS Forum
37. How is the amount of material to be fed calculated? - HCBBS Forum
38. Given the pipe diameter and pressure difference, how can the gas flow rate or velocity in a pipe be calculated? - HCBBS Forum
39. What are the precautions for sealing modifications? - HCBBS Forum
40. Chemical Engineering Design Manual - HCBBS Forum
41. 【Daily Question】Theoretical Foundation 2020.05.29 - HCBBS Forum
42. Operation method of fully automatic scraper centrifuge - HCBBS Forum
43. 【Daily Question】Theoretical Foundation 2020.10.11 - HCBBS Forum
44. Overall heat transfer coefficient of finned tube heat exchangers - HCBBS Forum
45. Advantages and usage precautions of suspension bag centrifuges - HCBBS Forum
46. Methanol distillation - HCBBS Forum
47. Can oil blending operations be carried out at oil depots? - HCBBS Forum
48. Do all metals corrode more in seawater than in fresh water or brine? Excuse me, guys - HCBBS Forum
49. Factory issues - HCBBS Forum
50. How to prevent carbon monoxide poisoning? Attention is needed in daily life, chemical production, and the transportation of hazardous materials - HCBBS Forum
51. 【Daily Question】Theoretical Foundation 2021.02.26 - HCBBS Forum
52. 【Daily Question】Theoretical Foundation 2021.03.25 - HCBBS Forum
53. Is it necessary to install an entrance vestibule at the connection point between a Class A factory building and a Class A intermediate warehouse? - HCBBS Forum
54. 【Daily Question】Theoretical Foundation 2020.11.08 - HCBBS Forum
55. Old K calculation software list - HCBBS Forum
56. Never slacken in ensuring safe production; epidemic prevention must not be neglected - HCBBS Forum
57. 【Daily Question】Theoretical Foundation 2021.04.20 - HCBBS Forum
58. Help me calculate the gas volume - HCBBS Forum
59. Calculation of nitrogen consumption in the tank farm - HCBBS Forum
60. Issues in the construction of storage facilities for liquid chlorine cylinders - HCBBS Forum
61. Based on that document, the DCS control logic can be programmed within the process package - HCBBS Forum
62. Safety valve calculation - HCBBS Forum
63. Phosphorus pentoxide for drying organic solvents - HCBBS Forum
64. 【Daily Question】Theoretical Foundation 2020.09.17 - HCBBS Forum
65. Interpretation of the Provisions on the Suction Piping of Combustible Gas Compressors in the Fourth Edition of the Training Manual for Pressure Piping - HCBBS Forum
66. 【Daily Question】Theoretical Foundation 2020.07.13 - HCBBS Forum
67. 【Daily Question】Theoretical Foundation 2020.06.10 - HCBBS Forum
68. A company in Nantong fined 240,000! The strictest waste management law is now in effect – here’s a 2-minute overview! - HCBBS Forum
69. How to calculate the instantaneous flow rate of compressed gas exiting through a small orifice - HCBBS Forum
70. 【Daily Question】Theoretical Foundation 2020.11.16 - HCBBS Forum
71. Let’s talk about what majors we have and what the basic courses for those majors are - HCBBS Forum
72. Compression and expansion - HCBBS Forum
73. 【Daily Question】Theoretical Foundation 2021.1.10 - HCBBS Forum
74. Specialized contracting in chemical engineering design, etc - HCBBS Forum
75. Does anyone know about 2-cyanopyridine? - HCBBS Forum
76. 【Daily Question】Theoretical Foundation 2020.06.28 - HCBBS Forum
77. The Ministry of Emergency Management issued the Catalogue for Safety Classification and Rectification of Hazardous Chemicals Enterprises (2020) - HCBBS Forum
78. Why can △p/p1=0.5 be used to determine whether the flow is saturated - HCBBS Forum
79. How to use the pipe diameter table in HG 20570.7. - HCBBS Forum
80. 【Daily Question】Theoretical Foundation 2021.03.08 - HCBBS Forum
81. 【Daily Question】Theoretical Foundation 2020.07.23 - HCBBS Forum
82. For a packed absorption tower under certain operating conditions, such as increasing the height of the tower packing, the number of mass transfer units - HCBBS Forum
83. In-depth analysis of the “potential-pH diagram” (i.e., Pourbaix diagram) – Summary - HCBBS Forum
84. How to calculate the density, specific heat, viscosity, and thermal conductivity of a mixture of 20% steam and 80% nitrogen? - HCBBS Forum
85. [Daily Question] Theoretical Basis 2020.11.24 - HCBBS Forum
86. 【Daily Question】Theoretical Foundation 2021.1.19 - HCBBS Forum
87. Is it necessary to install an oxygen content alarm next to the elevated tank for hydrogen peroxide? - HCBBS Forum
88. I want to design a 120-degree hot water circulation system to serve as a heat source for drying equipment. How can this be achieved? - HCBBS Forum
89. Reorder the start sequence - HCBBS Forum
90. Problems have occurred in the air separation process - HCBBS Forum
91. Carbon dioxide - HCBBS Forum
92. Registered Power Professional Examination - HCBBS Forum
93. [Daily Question] Theoretical Basis 2021.03.31 - HCBBS Forum
94. Issues regarding the qualitative assessment of the analysis and testing building in a chemical plant - HCBBS Forum
95. Chlorosulfonic acid sulfonation method - HCBBS Forum
96. 【Daily Question】Theoretical Foundation 2020.12.20 - HCBBS Forum
97. Course design: The pipe diameter is 16.9 mm; after rounding, 18 mm is chosen. Should hot-rolled steel of specification 32 be used, or cold-rolled steel of specification 18? - HCBBS Forum
98. Is an explosion-proof design required for heat transfer oil pumps? - HCBBS Forum
99. When handling the platinum crucible, potassium thiocyanate was mistakenly used instead of potassium pyrosulfate - HCBBS Forum
100. Asking about flange gaskets - HCBBS Forum