English — Forum #723 (Page 592/642)

1. Is it necessary to use temperature (thermal resistor) for interlocking in the control of large-scale units? - HCBBS Forum
2. Daily Question: Environmental Knowledge (July 17) (2 points for an answer, 4 points for a correct answer) - HCBBS Forum
3. Carbon steel container for 65%*ao acid - HCBBS Forum
4. Zhejiang University Zhongkong ECS100 system: displayed before the flow value? Value - HCBBS Forum
5. If the operation type is selected incorrectly, how can it be changed? - HCBBS Forum
6. How to effectively implement the owner responsibility system at the production site - HCBBS Forum
7. Decarbonization of synthetic ammonia MDEA solution - HCBBS Forum
8. The issue with throttling - HCBBS Forum
9. What is the investment cost to build a 20 wt/a ammonia synthesis plant nowadays? - HCBBS Forum
10. Should one really watch the ads for the “Haichuan Irrigation Co., Ltd. Convenience Store”? - HCBBS Forum
11. I’m about to apply for a professional title next year, and the situation is a bit special; I’m seeking advice from those who are more experienced - HCBBS Forum
12. Seeking advice on the distance l of the transfer pump - HCBBS Forum
13. What tasks should we carry out before building a circulating water system? - HCBBS Forum
14. PC_SAFT parameter regression - HCBBS Forum
15. High-temperature vacuum carbon reduction of metal oxides, help! - HCBBS Forum
16. What I encountered was - HCBBS Forum
17. Who should sign as the relevant responsible person specified in the work order according to GB30871-2014? - HCBBS Forum
18. Weekly topic: 8 Wealth points for those who answer correctly, 2 Wealth points for participation； Question 113 - HCBBS Forum
19. An fire broke out due to heat transfer oil insulation failure; please provide an explanation! ! - HCBBS Forum
20. Match them accordingly - HCBBS Forum
21. The mission of corporate security professionals - HCBBS Forum
22. Skirt foundation ring plate - HCBBS Forum
23. There were no leaks during the heat exchanger production process; it was stopped, and upon resuming operation multiple leaks were detected - HCBBS Forum
24. 【Daily Question】Basic knowledge of coking: +6 wealth for correct answers, +2 wealth for participation. Question 3 from 201507 - HCBBS Forum
25. Principle of the venturi scrubber - HCBBS Forum
26. Is it necessary to verify the strength of low-pressure vessels under purging conditions? - HCBBS Forum
27. 【Daily Question】- Seat belt factory markings (2 points for a reply, 4 points for the correct answer) - HCBBS Forum
28. 【Daily Question】- Required properties of a composite eye washer (2 points for a reply, 4 points for the correct answer) - HCBBS Forum
29. Long-distance hydrogen pipeline transportation - HCBBS Forum
30. Weekly topic: 5 wealth points for those who answer correctly, 2 wealth points for participation； Question 116 - HCBBS Forum
31. Does the sacrificial anode metal of the water cooler need to be insulated from the metal being protected? - HCBBS Forum
32. Do you remember your parents’ birthdays? - HCBBS Forum
33. What standards must the gas used for pressure pipeline pneumatic testing meet? - HCBBS Forum
34. Regarding the calculation of Sch.No - HCBBS Forum
35. What should be done if the compressor suddenly shuts down while heating up the converter in a hydrogen production plant? ? - HCBBS Forum
36. Time relay control of pneumatic control valve — II - HCBBS Forum
37. Steam pipeline design is required - HCBBS Forum
38. 【Daily Question】July 15 – Packing Tower Design Knowledge, Fill-in-the-Blank Question - HCBBS Forum
39. Discussion on the tube configuration of the reforming four-in-one furnace - HCBBS Forum
40. The petrochemical industry’s demand for dechlorination - HCBBS Forum
41. Does temperature fluctuation in the WSA burner affect the lifespan of the furnace bricks? - HCBBS Forum
42. Having nothing to do, browsing words - HCBBS Forum
43. What impact will the agreement on Iran’s nuclear issue have on the instrumentation industry? - HCBBS Forum
44. The problem of excessive fuel consumption in boilers - HCBBS Forum
45. . When the feed composition remains unchanged and the temperature at the top of the distillation column is too high, measures can be taken - HCBBS Forum
46. How to test fiber optic signal attenuation? - HCBBS Forum
47. 【Weekly Topic】Discussion on equipment records (third week of July) - HCBBS Forum
48. Gas heat exchange area - HCBBS Forum
49. How to construct a trifluoromethane storage tank - HCBBS Forum
50. Calculation of the skirt base at the top of the tower vessel - HCBBS Forum
51. Regarding high-pressure electrostatic water treatment devices for circulating water - HCBBS Forum
52. Searching for sulfur-tolerant shift catalysts with a gas ratio lower than 1.0 - HCBBS Forum
53. The boiler keeps forming scale; what should I do? - HCBBS Forum
54. 【Daily Question】Chemical Engineering Principles 111: Distillation Separation (July 16) - HCBBS Forum
55. CAD fails to install on W8.1 no matter what - HCBBS Forum
56. Are mercury thermometers truly more accurate than Class A thermal resistors? - HCBBS Forum
57. Xu Qinger (UID: 98004) has been appointed as the head of the coal chemical industry division - HCBBS Forum
58. Under negative pressure, once the water temperature reaches a certain value, the flow rate of the centrifugal pump begins to fluctuate; find a solution - HCBBS Forum
59. Discussion on Ammonia Nitrogen Removal and Phosphorus Removal Technologies in Wastewater Treatment - HCBBS Forum
60. Corrosivity of crude oil and refined oil products - HCBBS Forum
61. The 6 major \"enemies\" of the liver” - HCBBS Forum
62. Minimum outlet pressure of centrifugal pump - HCBBS Forum
63. Tasks of the project schedule coordinator - HCBBS Forum
64. Life Section: My Views on Famous Quotes – Part 2 - HCBBS Forum
65. What are the startup procedures for various types of units during vacuum extraction under reduced pressure? - HCBBS Forum
66. Regarding the cable transmission distance - HCBBS Forum
67. Why centrifugal pumps with a head of ≥25m? Is it necessary to install a check valve? - HCBBS Forum
68. Problems with Shengda’s magnetic pumps for low flow rates and high head pressures - HCBBS Forum
69. Recommendations and principles for desulfurization and denitration methods - HCBBS Forum
70. Which parts of a circulating fluidized bed boiler need to be protected against wear? - HCBBS Forum
71. Can two valves be connected together in a pipeline? - HCBBS Forum
72. Workplace Debate Episode 56: Do you still keep in touch with your former company’s managers? - HCBBS Forum
73. Does expansion energy saving prevent thermal expansion? - HCBBS Forum
74. Where can I find the specific heats of ammonium thiocyanate and thiosulfuric acid? - HCBBS Forum
75. Relevant calculations for Fisher floating buoys - HCBBS Forum
76. The impact of flow rate on pressure regulating valves - HCBBS Forum
77. Basic Knowledge for Instrument Technicians (18) — Plug Flow 4 — Do You Know About Sonic Nozzles? - HCBBS Forum
78. How to establish an internal standard method for determining oxygen content in gasoline - HCBBS Forum
79. What property methods does ASPEN use to simulate the absorption of wastewater gases from air? - HCBBS Forum
80. It’s really unbelievable – so many people take every word at face value - HCBBS Forum
81. 【Daily Question】Basic knowledge of coking: +6 wealth for correct answers, +2 wealth for participation. Question 2 from 201507 - HCBBS Forum
82. What is the connection method for the linkage float level switch? - HCBBS Forum
83. Pass rate of the 2015 Registered Environmental Impact Assessment Engineer exam - HCBBS Forum
84. Build a framework - HCBBS Forum
85. Is there a method for analyzing liquid ammonia projects? - HCBBS Forum
86. Processing cost of hydrogen production from methanol - HCBBS Forum
87. Seeking a job with many years of experience in the production management of alcohol ethers through ethoxylation - HCBBS Forum
88. Floor area of a 50-ton boiler - HCBBS Forum
89. Hiring highly paid personnel for atmosphere control, MTBE, aromatization, and MTP processes - HCBBS Forum
90. 【Daily Question】Fundamentals of Chemical Engineering 104: Ways to Enhance Heat Transfer (July 9) - HCBBS Forum
91. How to put the residue oil cooler back into use after repair? What are the tips for dealing with the non-condensing tubes? - HCBBS Forum
92. Calculation of flow rate and pressure loss for coiled tubes and spiral pipes - HCBBS Forum
93. It’s tragic, **bro, we’re very sad - HCBBS Forum
94. Is there not much demand for the position of safety officer in chemical companies? - HCBBS Forum
95. I would like to ask: How is the inventory in the stripping section of a catalytic unit calculated? - HCBBS Forum
96. Acetylene hydrogenation reactor - HCBBS Forum
97. 【Daily Question】Wastewater Knowledge-111-July 13 (2 points for answering, 4 points for a correct answer) - HCBBS Forum
98. The market continues to decline; there is no support for PVC prices - HCBBS Forum
99. 【Daily Question】Chemical Engineering Principles 110: Evaporation Operations (July 15) - HCBBS Forum
100. Content of communication signals between the instrument PLC and the frequency converter - HCBBS Forum