English — Forum #723 (Page 504/642)

1. 【Daily Question】Question from Issue 20151006 - HCBBS Forum
2. How much is each communication cable for 475? - HCBBS Forum
3. Effects of too high flow rate in the liquefied gas stream - HCBBS Forum
4. What specific effects does a high or low cell voltage have on the electrolyzer? - HCBBS Forum
5. What are the different types of fertilizers that require sulfur? - HCBBS Forum
6. Issues with heating up the space furnace during its initial startup? - HCBBS Forum
7. The color of the hydrogenated catalyst becomes red - HCBBS Forum
8. 【Daily Question】2015.09.26 (2 wealth points for replying, +3-8 additional wealth points for a correct answer) - HCBBS Forum
9. Seeking help regarding the mass flow meters of E+H 80 and 83 - HCBBS Forum
10. Issues related to the speed control and cooling capacity control of booster expanders - HCBBS Forum
11. Mechanical seal material issues - HCBBS Forum
12. Question: Should the inspection of the heat-affected zone be carried out according to the standards for inspecting the base material or those for inspecting welds? - HCBBS Forum
13. Integrated tube-fin rising film evaporator - HCBBS Forum
14. What is safe production? How do you understand the principle of putting safety first and focusing on prevention? - HCBBS Forum
15. Regarding the frequent operation of control valves - HCBBS Forum
16. The safety valve calculation on the Aspen HYSYS (Aspen 8.4) interface cannot be used - HCBBS Forum
17. What is the PC-STEL level? - HCBBS Forum
18. In water chemical desalination systems, why are anion exchangers installed after cation exchangers? - HCBBS Forum
19. Do waste incineration power plants need coal grinding? - HCBBS Forum
20. Can a dock be used to unload oil with a steam reciprocating pump? Seeking experts - HCBBS Forum
21. Questions about switch-mode power supplies - HCBBS Forum
22. Safety valve discharge port - HCBBS Forum
23. Zhangjiagang Ruineng Ultrasonic Technology for Reducing Viscosity of Heavy Oil - HCBBS Forum
24. What is the saturation of ion exchange resin? - HCBBS Forum
25. What are the characteristics of chemical wastewater? - HCBBS Forum
26. Some questions about hygrometers - HCBBS Forum
27. fusion ratio - HCBBS Forum
28. Seeking guidance; feeling lost as a first-year graduate student - HCBBS Forum
29. How to remove an oil finger blockage at the tip of a burette? - HCBBS Forum
30. Problem of frequent slag clogging in the gasification furnace - HCBBS Forum
31. Urgently need online guidance on how to use the 475 HART handheld device to set the display mode of a pressure transmitter to alternate between showing pressure and percentage values - HCBBS Forum
32. What are the specific measures to prevent the formation of systems for **chemical combustion and explosion**? - HCBBS Forum
33. What is the difference between BSC and BSCX in SUPCON? - HCBBS Forum
34. Instrument Upgrade Form - HCBBS Forum
35. What format is used for hydraulic process calculations in the chemical industry? Is there a calculation table? What standards should be referred to for the calculation? Thank you! - HCBBS Forum
36. What are the advantages and disadvantages of eating persimmons? - HCBBS Forum
37. Mid-Autumn Festival is here – what benefits does your company offer? - HCBBS Forum
38. Which are the manufacturers of PFA pipes? - HCBBS Forum
39. 【Daily Question】Chemical Engineering Principles 193: Absorption Operation Line (October 5) - HCBBS Forum
40. Can self-tapping screw connections be disassembled repeatedly? - HCBBS Forum
41. Could someone please help download the standard API RP 932-B-2012? - HCBBS Forum
42. 【Daily Question】2015.09.25 (2 wealth points for replying, plus 3–8 additional wealth points for a correct answer) - HCBBS Forum
43. The function of steam traps (IV) - HCBBS Forum
44. Issues with smoke compartments - HCBBS Forum
45. Do dryer ducts need to be grounded for lightning protection? - HCBBS Forum
46. Properties of salts and acids under high temperature and pressure - HCBBS Forum
47. What’s the value of the number of themes in HaiChuan? - HCBBS Forum
48. 【Daily Question】Question from Issue 20150924 - HCBBS Forum
49. I’m a beginner; seeking help with the Aspen steam compression refrigeration cycle - HCBBS Forum
50. It is recommended to establish a HaiChuan cyber army under the command of cleaners in the HaiChuan leisure version - HCBBS Forum
51. HYSYS simulation of safety valves - HCBBS Forum
52. Selection of LPG loading pumps - HCBBS Forum
53. 【Daily Question】Chemical Engineering Principles 185: Distillation Operations (September 27) (Double rewards for holidays) - HCBBS Forum
54. Why is a gearbox shift required in WP’s extruders when producing polypropylene of different grades? - HCBBS Forum
55. Is 36% liquid sodium hydrosulfide dangerous?** - HCBBS Forum
56. The issue of selecting the pressure rating for flanges on container equipment - HCBBS Forum
57. Autumn has arrived again; there are leaves everywhere. What do you do if someone burns those leaves? - HCBBS Forum
58. Ask for coupling model - HCBBS Forum
59. Do chlorine and ammonia present in the air have an impact on the hydrogen peroxide working solution, and do they cause poisoning of the palladium catalyst? - HCBBS Forum
60. Newbie seeking help: how to use constraints in CAD? ? - HCBBS Forum
61. What solvents can dissolve TPE at room temperature? - HCBBS Forum
62. 【Daily Question】Question from Issue 20150925 - HCBBS Forum
63. How to determine and calculate the temperature point for the thermal decomposition or reaction of a substance - HCBBS Forum
64. The role of storage tank cleaning and blowing during debugging - HCBBS Forum
65. Water temperature control for burners in space furnaces and shell furnaces - HCBBS Forum
66. Chemical Engineering in Daily Life – Question 84: Which is more effective, the human lung or an artificial lung? - HCBBS Forum
67. Celebrating China’s Great Victory over Jordan - HCBBS Forum
68. 【Daily Question】Question from Issue 20151005 - HCBBS Forum
69. What are some good brands of pressure reducing valves for water use, for household use with a DN20 pipe diameter? - HCBBS Forum
70. One Question per Day, September 23, 2015 - HCBBS Forum
71. Domestic electronic floor scales - HCBBS Forum
72. The hazards of high oxygen pressure in one of the burners during multi-nozzle gasification operation - HCBBS Forum
73. Servo level gauge - HCBBS Forum
74. The difference between JHA and JSA - HCBBS Forum
75. Discuss “I”” - HCBBS Forum
76. Solution of the process for ethylene-propylene type screw refrigerators - HCBBS Forum
77. 【Psychological Test】Are you the type to prioritize face over comfort? - HCBBS Forum
78. What are the regulations regarding cooling after a circulating fluidized bed boiler is shut down? - HCBBS Forum
79. What issues should be considered when reducing the load of a circulating fluidized bed boiler during shutdown? - HCBBS Forum
80. 【Daily Question】Question from Issue 20151007 - HCBBS Forum
81. One Question per Day, September 24, 2015 - HCBBS Forum
82. (Repost) There are no martial arts masters among the common people - HCBBS Forum
83. 【Daily Question】Question from Issue 20150930 - HCBBS Forum
84. I would like to ask about the installation requirements for oxygen detectors - HCBBS Forum
85. How should the 96 tanks in the tank farm be arranged? ? ? - HCBBS Forum
86. Sulfate ions, ammonia nitrogen levels, COD treatment methods - HCBBS Forum
87. Questions regarding flow meter selection - HCBBS Forum
88. Principle of temperature and pressure reducer - HCBBS Forum
89. What does a high rate of \"question prediction\" before the First-Class Constructor exam indicate? - HCBBS Forum
90. 【Daily Question】10.4 Back + 2； For +3~8 - HCBBS Forum
91. It’s not him I miss, but that pure, beautiful, and pitiful love - HCBBS Forum
92. Measures to prevent catalyst bag fragments from entering the catalyst tank - HCBBS Forum
93. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 326 - HCBBS Forum
94. Standard request for help - HCBBS Forum
95. Reflections on accidents in the petrochemical industry in recent years - HCBBS Forum
96. How are the explosion protection ratings of combustible gas detectors classified? - HCBBS Forum
97. What are the safety measures for equipment maintenance? - HCBBS Forum
98. How to process yellow, acidic, flavored solvent oils? - HCBBS Forum
99. Today, in his match against Singapore, Wang Zhelin had a certain goal blocked by a player who was 1.88 meters tall – more than 20 centimeters shorter than him - HCBBS Forum
100. I need help with a problem regarding centrifugal pumps for concentrated sulfuric acid - HCBBS Forum