English — Forum #723 (Page 603/642)

1. Deep hole machining example: Proper use of the BTA deep hole drill - HCBBS Forum
2. Liquid level measurement in high-pressure jacketed reactors - HCBBS Forum
3. Those who are familiar with catalytic hydrorefining in refineries, please come in - HCBBS Forum
4. Weekly topic: 8 wealth points for those who answer correctly, 2 wealth points for participation； Question 120 - HCBBS Forum
5. Questions regarding the reflux at the top of the distillation column - HCBBS Forum
6. Can air cooling be used for duplex steel pipes? - HCBBS Forum
7. Seeking information on the initial steam production volume during hydrogen production startup - HCBBS Forum
8. Maximum allowable operating pressure and maximum allowable working pressure - HCBBS Forum
9. Issues regarding Yokogawa report generation - HCBBS Forum
10. 【Daily Question】July 13: What are the common methods for dealing with pipeline leaks? - HCBBS Forum
11. Who has the book \"Technical Q&A on Lubricant Production Equipment\"? - HCBBS Forum
12. Knowing the pressure difference, pipe diameter, and pipe length, how to calculate the flow velocity of the fluid? What is the formula for calculation? - HCBBS Forum
13. Discussion on the principle of flare gas smoke suppression steam - HCBBS Forum
14. The outlet connector of the acetylene generator is damaged; the welder is using a connector made of red copper. Is this in compliance with the standards? - HCBBS Forum
15. You might not be aware of the benefits of preparing a professional thesis in advance - HCBBS Forum
16. Issues with non-destructive testing - HCBBS Forum
17. Limit analysis of pressure vessels - HCBBS Forum
18. Measures for cooling storage tanks - HCBBS Forum
19. PPT Lucky List - HCBBS Forum
20. Which brands of lifting equipment are good in China? - HCBBS Forum
21. Activated carbon in water treatment - HCBBS Forum
22. Stroke of a reciprocating compressor - HCBBS Forum
23. Connection issues for pipes laid in trenches - HCBBS Forum
24. Those years, that song, those people... - HCBBS Forum
25. Weekly topic: 5 Wealth points for correct answers, 2 Wealth points for participation； Question 119 - HCBBS Forum
26. When are positive and negative tolerances applied to container panels? - HCBBS Forum
27. Wandering along the rivers and seas in my free time - HCBBS Forum
28. Principles that should be followed for the installation location of general valves - HCBBS Forum
29. Corrosion protection for acidic water storage tanks - HCBBS Forum
30. Problems encountered during the commissioning of lithium bromide units - HCBBS Forum
31. Relationship between extremely low temperatures and the temperature of the lean amine liquid in the regeneration tower - HCBBS Forum
32. Regarding the issue of ammonification - HCBBS Forum
33. Low-pressure nitrogen for the flare line of the Texaco scrubber tower top safety valve - HCBBS Forum
34. What records need to be kept for establishing safety standardization in the hazardous chemicals industry? - HCBBS Forum
35. On how to reduce the contamination of desulfurization slurry during boiler oil ignition - HCBBS Forum
36. Manufacturers and phone numbers for circulating water chemical dosing - HCBBS Forum
37. Calculation method for the fire-fighting water volume of fire pumps in petrochemical tank farms - HCBBS Forum
38. Do anyone have any standards related to acetaldehyde? Thank you all - HCBBS Forum
39. Repair and spare parts supply for chemical process shielded pumps - HCBBS Forum
40. Does anyone know anything about mass flow meters? - HCBBS Forum
41. Discussion on gas-to-gas plate exchangers - HCBBS Forum
42. Does anyone know any professional environmental protection websites? - HCBBS Forum
43. What is the price of the instrument? - HCBBS Forum
44. HYSYS heat exchanger calculation - HCBBS Forum
45. Safety valve model issue - HCBBS Forum
46. 【Weekly Topic】Topics on grease (first week of July) - HCBBS Forum
47. How to calculate the number of nozzles in the spray layer of a desulfurization tower? - HCBBS Forum
48. What is a coplanar flange, and what is the difference between it and a regular flange? - HCBBS Forum
49. Design of occupational health facilities for Class A underground storage tanks - HCBBS Forum
50. What are the requirements for commissioning liquid ammonia pipelines? - HCBBS Forum
51. Selection and calculation issues for liquefied hydrocarbon unloading compressors - HCBBS Forum
52. Does Chuanyi produce pressure gauges and differential pressure gauges? - HCBBS Forum
53. How to calculate humidity in boiler flue gas - HCBBS Forum
54. Help: Mesh size of the inlet filter for the cooling water circulation pump - HCBBS Forum
55. Additives for catalytic cracking - HCBBS Forum
56. Can a differential pressure density meter be replaced directly with a differential pressure transmitter? - HCBBS Forum
57. 【Weekly Topic】 Management of Low-Load Operation of Equipment - HCBBS Forum
58. Is this hydrogen sulfide corrosion? - HCBBS Forum
59. Calculation method for reducer reduction ratio - HCBBS Forum
60. 【Daily Question】July 3: Comparison of flash points between crude oil and light diesel - HCBBS Forum
61. I need help from experts: What is OSI as a unit of pressure? How is it converted? - HCBBS Forum
62. Internal rumor: The registration exam for survey engineers in 2015 might be suspended for one year - HCBBS Forum
63. Warranty period and conditions for water pumps - HCBBS Forum
64. Special sale on Haichuan PPT workplace series! ! ! ! ! - HCBBS Forum
65. Syngas decarburization - HCBBS Forum
66. Could you help check if this wiring works? - HCBBS Forum
67. refining - HCBBS Forum
68. What causes ammonia solution to become ineffective? - HCBBS Forum
69. Just arrange the transmitters in rows? - HCBBS Forum
70. Several tips for making soup - HCBBS Forum
71. Difference between control valves and pressure reducing valves - HCBBS Forum
72. Issues regarding the flushing of the slurry pipeline when the Texaco gasifier is shut down - HCBBS Forum
73. Pipeline static grounding test record - HCBBS Forum
74. Can a vortex flow meter be used to measure starch slurry? - HCBBS Forum
75. Has registration for this year’s Juhua started? - HCBBS Forum
76. 5. Why is chemical dosing required for some waste boilers while it isn’t necessary for others? - HCBBS Forum
77. To all students taking the college entrance exam: The world may seem narrow, but it is actually vast - HCBBS Forum
78. Form for the arrangement and confirmation of starting up and shutting down chemical plants - HCBBS Forum
79. Retention period for surveillance footage in the tank farm - HCBBS Forum
80. Regarding the zeroing issue of flow meters - HCBBS Forum
81. Workplace Debate Episode 55: Should the choice of outstanding employees be based on the instructions of superiors? - HCBBS Forum
82. Alfa Laval, a company specializing in engineering design and equipment manufacturing - HCBBS Forum
83. 3. Are there any requirements for the convective velocity of ammonium carbonate crystals? - HCBBS Forum
84. Pounding of Class A gas pipelines - HCBBS Forum
85. How does Flanta ensure the gap and sealing performance of the flange seal surface? - HCBBS Forum
86. Don’t compete over money, don’t compete over food, don’t compete over clothing. What should we compete over? More than inner beauty, more than virtue. - HCBBS Forum
87. The six functions of lubricating oil - HCBBS Forum
88. Pipeline corrosion issue in amine solution regeneration - HCBBS Forum
89. 【Daily Question】Principles of Chemical Engineering 091: Heat Transfer Coefficient K (June 26) - HCBBS Forum
90. How to be a competent and good employee? - HCBBS Forum
91. Instrument elevation in the instrument layout diagram - HCBBS Forum
92. The troubles encountered due to personnel changes at work - HCBBS Forum
93. 【Daily Question】June 26: Concept of the proportional law for centrifugal pumps (First 80 participants + 3–8 points extra for those who get 2 answers correct) - HCBBS Forum
94. The vibration levels of the motor and the pump are not the same. - HCBBS Forum
95. Vacuum pumping issues in evaporation devices - HCBBS Forum
96. Solve the problem of flow rate detection for concentrated sulfuric acid and phosphoric acid - HCBBS Forum
97. What would a chicken do if it knew it was going to be killed the next day? - HCBBS Forum
98. Catalyst skimming scheme for aviation kerosene hydrogenation unit - HCBBS Forum
99. Which company around Henan produces decrystallized anthracene oil with a low density? - HCBBS Forum
100. What is the minimum fire separation distance required for Class A factories and Class A workshops? - HCBBS Forum