English — Forum #337 (Page 114/163)

1. How should it be described in the operating instructions: slowly opening the control valve? - HCBBS Forum
2. HM bolt - HCBBS Forum
3. Basic Process Knowledge (Multiple Choice) 2018030 - HCBBS Forum
4. The DN750 triple-eccentric butterfly valve can withstand temperatures up to 600 degrees Celsius, but it often experiences internal leakage as well as external leakage at the flanges. - HCBBS Forum
5. [Mechanical Equipment Technology Edition] Daily Question 20180202: Common Faults in Refrigeration Systems (8.9) - HCBBS Forum
6. Discussion on issues related to the spherical tank spraying system? - HCBBS Forum
7. Do the storage tanks in the plant area include the intermediate storage tank? ? Is the intermediate storage tank we are talking about the plant storage tank, which can be left without any protective measures... - HCBBS Forum
8. 【Mechanical Equipment Technology Edition】Daily Question 201802024: Common Faults in Refrigeration Systems (9.6) - HCBBS Forum
9. Solve unit conversion - HCBBS Forum
10. What are the methods for ensuring airtightness in high-temperature pipelines? - HCBBS Forum
11. Semi-fiber converted xylose hydrolysis process scheme - HCBBS Forum
12. Which is better, electric butterfly valves or pneumatic butterfly valves? - HCBBS Forum
13. What is the fire hazard classification for liquid sodium acetate? Does anyone know? Thank you! - HCBBS Forum
14. What are the emergency procedures to follow when a incinerator loses power? - HCBBS Forum
15. Regarding the calculation process for the safe discharge volume of gas cylinders, I’d appreciate it if someone experienced in this area could take a look and point out any issues. Thank you! - HCBBS Forum
16. Our factory uses waste vegetable oil to produce fatty acids and emulsifiers, and we are now conducting a safety assessment. The leader of the Safety Supervision Bureau said that we fall under the chemical industry category, but we have always been classified as part of the industrial and trade sector Is there anyone who knows this field? - HCBBS Forum
17. What pipe material is used for low-temperature liquid ammonia? - HCBBS Forum
18. Basic Process Knowledge (Multiple Choice) 20180421 - HCBBS Forum
19. Energy-saving technical upgrades for styrene plants - HCBBS Forum
20. Do any of you in Sichuan have a purging plan for ST ring pipes? - HCBBS Forum
21. 【HVAC Version】Daily Question 20180202 - HCBBS Forum
22. Why is the alkylation waste acid degasser operated under negative pressure? - HCBBS Forum
23. Fundamentals of Manufacturing Processes (Multiple Choice) 20180422 - HCBBS Forum
24. The ceiling height is not high; how can the centrifuged mother liquor be collected? - HCBBS Forum
25. Who knows what this thing is called? Is it available for purchase? - HCBBS Forum
26. Aspen calculates the bubble point pressure and temperature - HCBBS Forum
27. When will the salary be paid? - HCBBS Forum
28. How should the pipes of the northern external pipe rack, especially plastic pipes, be insulated? ? ? ? - HCBBS Forum
29. [Mechanical Equipment Technology Edition] Daily Question 201805011: Refrigeration Systems – Refrigeration Equipment (2) - HCBBS Forum
30. Fundamentals of Manufacturing Processes (Multiple Choice) 20180404 - HCBBS Forum
31. Discussion on the issue of sampling process materials - HCBBS Forum
32. Process design for temperature and pressure reduction - HCBBS Forum
33. Is there a nitrogen circulation mode for CO cryogenic separation? - HCBBS Forum
34. The problem of work performance in reciprocating compressors - HCBBS Forum
35. Material components in the hydrocracking unit of Zhenhai Refining & Chemical Co - HCBBS Forum
36. Rosin resin dissolution tank - HCBBS Forum
37. Requirements for the clear distance between above-ground and below-ground pipelines and cables - HCBBS Forum
38. How should the air inlet temperature of the air cooler be determined? - HCBBS Forum
39. Electrolytic aluminum production process - HCBBS Forum
40. Evaporator scaling - HCBBS Forum
41. For a hydrogen consumption of 1000 Nm³/h, what type of hydrogen production facility is suitable for long-term operation? - HCBBS Forum
42. Importance of solenoid valve power consumption - HCBBS Forum
43. Questions regarding Process Category 10 in the List of Hazardous Chemical Processes Subject to Stringent Supervision (2013) - HCBBS Forum
44. Heat exchanger pressure drop? - HCBBS Forum
45. superheated steam - HCBBS Forum
46. Separation of valeraldehyde and water - HCBBS Forum
47. A more comprehensive book on distillation technology - HCBBS Forum
48. Valve characteristic abbreviations - HCBBS Forum
49. Look for Dr.'s book - HCBBS Forum
50. Pressure and temperature regulation in the hydrogenation system - HCBBS Forum
51. PDMS12.1SP4 installation - HCBBS Forum
52. Basic Process Knowledge (Multiple Choice) 20180508 - HCBBS Forum
53. During the process package preparation, the control system determines the relevant standards - HCBBS Forum
54. How to calculate the volume after a liquid vaporizes - HCBBS Forum
55. Which centrifuge should be used for sodium sulfate decahydrate - HCBBS Forum
56. May I ask what the new standard for the HGJ229-91 Code for Construction and Acceptance of Anti-corrosion Works for Chemical Equipment and Piping is? - HCBBS Forum
57. Continuous melting process - HCBBS Forum
58. On the production methods of aluminum chloride - HCBBS Forum
59. [Mechanical Equipment Technology Edition] Daily Question 20180501 – Messages from the moderator - HCBBS Forum
60. Regarding airtightness testing - HCBBS Forum
61. Fundamentals of Processing Technology (Multiple Choice) 201800304 - HCBBS Forum
62. The original setup was ordinary; now several 2m3 Class A liquid storage tanks have been installed to form a combined unit area - HCBBS Forum
63. May 2018: Reward Hachuan Coins Allocation Plan for Process Departments - HCBBS Forum
64. 【HVAC Version】Daily Question 20180405 - HCBBS Forum
65. Who has relatively complete CAD drawings of various types of reaction kettles? - HCBBS Forum
66. Do aldehydes such as formaldehyde and acetaldehyde have acidity? - HCBBS Forum
67. Please tell me how to distill high boiling point substances under reduced pressure. - HCBBS Forum
68. The effect of increasing temperature on hydrogenation reactions - HCBBS Forum
69. Issues in selecting sampling valves for processes - HCBBS Forum
70. Questions regarding four-effect evaporation - HCBBS Forum
71. After the hydrogen circulation pump stops, the emergency pressure relief valve opens – can fresh hydrogen still be supplied to the reactor, and can it remove heat? - HCBBS Forum
72. Are there titanium-lined versions of ball valves, gate valves, and globe valves? ? - HCBBS Forum
73. fire separation distance - HCBBS Forum
74. Basic Process Knowledge (Multiple Choice) 20180613 - HCBBS Forum
75. How can carbon dioxide, carbon monoxide, and hydrogen in methanol feed gas, which have different molecular weights, be compressed simultaneously? - HCBBS Forum
76. What are total ammonia and volatile ammonia in ammonia water? - HCBBS Forum
77. Catalyst deactivation in hydrocracking - HCBBS Forum
78. 【HVAC Version】Daily Question 20180224 - HCBBS Forum
79. Seawater crude oil cooler - HCBBS Forum
80. How to determine if the water in the pipe is flowing at full capacity? ! - HCBBS Forum
81. 【HVAC Version】Daily Question 20180223 - HCBBS Forum
82. corrugated plate coalescer - HCBBS Forum
83. Calculation problems for forced circulation evaporation - HCBBS Forum
84. Dust explosion problems in drying + granulation - HCBBS Forum
85. Butyl rubber production process - HCBBS Forum
86. The Teyu chiller is water-cooled; can it be oil-cooled instead? - HCBBS Forum
87. 【HVAC Version】Daily Question 20180128 - HCBBS Forum
88. Which expert has the process flow diagram and relevant materials for catalytic gasoline hydrogenation? Thank you - HCBBS Forum
89. Basic Process Knowledge (Multiple Choice) 20180601 - HCBBS Forum
90. Liquefied gas after desulfurization - HCBBS Forum
91. Is tap water supplied under pressure or without pressure? ! - HCBBS Forum
92. Basic Process Knowledge (Multiple Choice) 2018025 - HCBBS Forum
93. Does anyone know anything about the corrosion resistance of PPH? Is there a corrosion resistance table? ? - HCBBS Forum
94. Can the check valve at the outlet of the circulation pump in the heating system be removed? - HCBBS Forum
95. Installation of groundwater monitoring wells in the factory - HCBBS Forum
96. Cavitation problem in the high-pressure pump inlet pipeline - HCBBS Forum
97. Interlock design - HCBBS Forum
98. Looking for a book - HCBBS Forum
99. Fundamentals of Manufacturing Processes (Multiple Choice) 20180501 - HCBBS Forum
100. 【HVAC Version】Daily Question 20180311 - HCBBS Forum