English — Forum #723 (Page 135/642)

1. Regarding the single-electronic-control two-position five-way solenoid valve - HCBBS Forum
2. Compressor oiler tank level control - HCBBS Forum
3. Is it necessary to release the pressure inside a reciprocating compressor after it is shut down? - HCBBS Forum
4. Experts, could you please take a look at whether it’s acceptable for someone to hold the position of quality assurance specialist in my company while working part-time? - HCBBS Forum
5. water coal slurry - HCBBS Forum
6. Powdered fungicide from circulating water splashes onto the skin - HCBBS Forum
7. Wiring of pneumatic cut-off valves and control valves - HCBBS Forum
8. Please provide the oil change criteria for L-TSA turbine oil according to NB/SH/T 0636-2013 - HCBBS Forum
9. September 22, 2016: Analysis of sulfur - HCBBS Forum
10. How does intermittent feeding ensure that the settling and stratification of each batch of material have minimal impact on the already stratified material from previous batches? - HCBBS Forum
11. 【Picture of the Day】2016 09 26 What is the device in this picture? - HCBBS Forum
12. Wish everyone a happy National Day! - HCBBS Forum
13. Seeking help from experts - HCBBS Forum
14. In the environmental impact assessment exam, what is asked about the sources of impact? Is it the boiler, its chimney, or the exhaust gases produced by the boiler? , please provide a solution - HCBBS Forum
15. Powder cooling - HCBBS Forum
16. What are people’s views on coal chemical industry? - HCBBS Forum
17. 【Daily Question】Deep Processing 20161001 Fill-in-the-blank: The third component currently in use is ( )~ - HCBBS Forum
18. Help: Process related to low-pressure backflow at the inlet of a natural gas compressor - HCBBS Forum
19. Is there still hope for the chemical industry? Should I change careers? - HCBBS Forum
20. Multiple positive factors converge, driving strong rises in PVC prices - HCBBS Forum
21. True or False Questions (8 points for correct answers, 3 points for participation) - HCBBS Forum
22. In polyethylene plants, within the comonomer purification unit, the removal of light components is ineffective, which can lead to the generation of static electricity and a decrease in catalyst activity... - HCBBS Forum
23. For a 15,000 m3 low-temperature ethylene tank cooled with liquid nitrogen, is it better to pre-cool it from the bottom or from the top? Seeking advice! ! - HCBBS Forum
24. 〔Final Disciple〕 Guan Guan teaches you how to be a moderator! - HCBBS Forum
25. The formation of the recirculation zone - HCBBS Forum
26. Regarding heat treatment: welding between Q345R, 30mm, 15CrMoR, and 10mm. - HCBBS Forum
27. Regarding the airtightness test of pipelines, the location of valves on the pipeline - HCBBS Forum
28. Special review for fire protection - HCBBS Forum
29. What are good methods for tuning PID parameters for the cascade control system that regulates the liquid level in the stabilizer reflux tank and the flow rate of liquefied gas exiting the unit? - HCBBS Forum
30. 【Daily Topic】【Electrical Edition 20160927】 - HCBBS Forum
31. I have been signing in continuously for over 2 months now – why has the number of consecutive days of signing in suddenly become a single digit? ? ? - HCBBS Forum
32. What form does a finger heater take? - HCBBS Forum
33. Processing of bellows - HCBBS Forum
34. 【Daily Topic】【Engineering Version 20161003】 - HCBBS Forum
35. PDS structure modeling problem - HCBBS Forum
36. [Forward] Don’t make money at the time when you should be learning the most - HCBBS Forum
37. Regarding the heating methods for heat transfer oil - HCBBS Forum
38. What type of support do U-bolts belong to in industrial pipelines? - HCBBS Forum
39. If life were perfect, there would be a butterfly effect - HCBBS Forum
40. Horton Horton compressors - HCBBS Forum
41. Diesel hydrogenation test questions - HCBBS Forum
42. \"Design Code for Heat Treatment Shops in Machinery Factories\" (JBJ/T34-99) - HCBBS Forum
43. Let’s see why your money can’t be saved – where does it all go?^_^ - HCBBS Forum
44. Is Shenwu Environmental Protection’s “new acetylene chemical process” reliable? - HCBBS Forum
45. What should be the design pressure and design temperature for containers under normal pressure and at normal temperature? Urgent! Urgent! Urgent! ! - HCBBS Forum
46. Please share some understanding regarding PPM - HCBBS Forum
47. How to reduce the flow rate in waste water pipes and the exit flow velocity - HCBBS Forum
48. True or False Questions (8 points for correct answers, 3 points for participation) - HCBBS Forum
49. What is the corresponding national standard for DIN2848 lined pipes? - HCBBS Forum
50. Online viscosity monitoring of resin (silicone) - HCBBS Forum
51. book - HCBBS Forum
52. Do you know that adding water to the coking distillation tower can lower the pH value? - HCBBS Forum
53. 【Daily Question】Deep Processing 20160929 Fill-in-the-blank: An activator undergoes ( ) when it comes into contact with water, and it undergoes ( ) when it comes into contact with air~ - HCBBS Forum
54. CS3000 issues - HCBBS Forum
55. 【Weekly Topic】【Quality Edition 20160929-30】 - HCBBS Forum
56. Sign-in record post from October 2, 2016 - HCBBS Forum
57. Solid-liquid separation - HCBBS Forum
58. What is the difference between hydrogen bubbling, hydrogen embrittlement, and hydrogen corrosion? - HCBBS Forum
59. How can the 9 types of unsafe human behaviors be controlled? Come in! - HCBBS Forum
60. Attachments recommended for free download do not deduct Wealth Coins - HCBBS Forum
61. GB/T 18442.7 Fixed vacuum-insulated cryogenic pressure vessels – Part 7: Specifications for strain strengthening of internal vessels (Draft for approval) - HCBBS Forum
62. The use of rupture discs in chemical engineering design and their functions; the installation location of rupture discs - HCBBS Forum
63. Catalyst presulfurization - HCBBS Forum
64. 【Haichuan Jokes Shop】The passage about 007 is really well written - HCBBS Forum
65. The scenery here is truly beautiful - HCBBS Forum
66. What is the difference between the regeneration operation switch and the catalyst circulation switch in CRCs? - HCBBS Forum
67. Pump lubrication method - HCBBS Forum
68. Hydrogen and diesel - HCBBS Forum
69. One of the most valuable utilization methods for mixed C4 hydrocarbons - HCBBS Forum
70. What does the model Z6CT-H1001 for gate valves mean? - HCBBS Forum
71. How to handle oil-contaminated material from the solvent recovery and centralized regeneration process - HCBBS Forum
72. Discussion on pipeline pickling and passivation methods - HCBBS Forum
73. Safe flow velocity of the medium - HCBBS Forum
74. Vacuum distillation column simulation, overhead reflux - HCBBS Forum
75. Location of eyewash stations in the tank area - HCBBS Forum
76. Looking for some work to do, in hydrogenation technology! - HCBBS Forum
77. Comments on dust sampling methods - HCBBS Forum
78. How to calculate material balance and processing losses in dry gas hydrogen production plants? - HCBBS Forum
79. Recommendations for manufacturers of high-temperature heat transfer oil pumps - HCBBS Forum
80. Looking for a job 4 years after graduating from chemical engineering - HCBBS Forum
81. Who still uses steam heaters in their cryogenic air separation units? Let’s discuss it. - HCBBS Forum
82. 【Daily Question】Chemical Engineering Principles 436: Steam Mass (September 28) - HCBBS Forum
83. Caesar rotation coordinate direction - HCBBS Forum
84. Floor plan of the pressure vessel production workshop; it is advisable to include information on equipment placement and area division - HCBBS Forum
85. Who will win the 2016 Men’s Table Tennis World Cup? - HCBBS Forum
86. Let’s discuss what precautions should be taken regarding liquid backflow during the startup of air separation units - HCBBS Forum
87. 【Daily Topic】【Engineering Version 20161001】 - HCBBS Forum
88. 【Daily Question】Advanced Processing 20161007 Fill-in-the-blank: When the unit is started up, an analysis of the gas inside the tank is carried out; the water content is required to be ( ), and oxygen - HCBBS Forum
89. Unit center distance - HCBBS Forum
90. 【Daily Topic】【Civil Engineering Version 20161002】 - HCBBS Forum
91. PIO design meaning in engineering design - HCBBS Forum
92. Registered Chemical Engineer - HCBBS Forum
93. Selection of level gauge for tar underground vent tank - HCBBS Forum
94. Concentrate treatment in reverse osmosis - HCBBS Forum
95. Sir, the chicken soup is here - HCBBS Forum
96. Siemens 412-5H - HCBBS Forum
97. 【Newbie question】What are the differences between centering, alignment, and balancing exactly? - HCBBS Forum
98. 【Daily Question】October 5, 2016 – Participation +2 Wealth； +3 to 8 wealth for correct answers - HCBBS Forum
99. The airport is built next to a nature reserve, but it does not occupy any land there; does this count as an impact on the nature reserve? - HCBBS Forum
100. 【Q&A Question 168】October 5, 2016 - HCBBS Forum