English — Forum #723 (Page 198/642)

1. “Provisions on Procedures for Law Enforcement in Work Safety” – essential for work safety supervisors, must-know for enterprises, and a must-read for individuals - HCBBS Forum
2. Are ESD systems and SIS systems the same thing? - HCBBS Forum
3. 2015 Zhuhua Global Audio, lecture notes and past exam questions - HCBBS Forum
4. The measure to prevent liquid slugging when restarting a bottom pump in a heating furnace where the material is at high temperature after a long period of shutdown is - HCBBS Forum
5. Breather valve on the cold box - HCBBS Forum
6. How should the security responsibilities of employees, management, and decision-makers be clarified? } - HCBBS Forum
7. Interpretation of building code provisions - HCBBS Forum
8. The suspended-bed tar hydrogenation project has been operating stably for nearly 5 months, and it is planned to shut down for maintenance - HCBBS Forum
9. Questions about the stabilizer tower - HCBBS Forum
10. Teaching you how to test radiation-proof clothing - HCBBS Forum
11. 97R-118 «Atlas of Steam Heat Accumulators» - HCBBS Forum
12. What is the process for an instrument assistant engineer? - HCBBS Forum
13. How to finalize the design of hazardous waste incinerators - HCBBS Forum
14. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； July 15th - HCBBS Forum
15. ASTM B625 - HCBBS Forum
16. Position - HCBBS Forum
17. Regarding petrochemical plants, what devices and measures are in use to address the hydrogen balance between reforming and hydrogenation? How to do hot standby? - HCBBS Forum
18. PPS solid-liquid dual transport - HCBBS Forum
19. Honeycomb denitration catalyst - HCBBS Forum
20. The power supply company notified of a power outage - HCBBS Forum
21. Industrial Pipeline Installation Work Instruction - HCBBS Forum
22. Turbidity of circulating water - HCBBS Forum
23. Discussion on circulating water pump issues - HCBBS Forum
24. MTO reaction temperature - HCBBS Forum
25. Is negative pressure generated at the pump outlet hui9? - HCBBS Forum
26. Practical applications of Internet+ - HCBBS Forum
27. Looking for hydrogen production equipment manufacturers - HCBBS Forum
28. Pipeline flushing - HCBBS Forum
29. Valve freezing crack - HCBBS Forum
30. On reciprocating piston compressors and centrifugal compressors in the selection of CNG equipment - HCBBS Forum
31. Aromatic content - HCBBS Forum
32. Sell off at rock-bottom prices: rotary evaporators, glass reaction vessels, high/low temperature circulation tanks, vacuum filters, integrated high/low temperature units, vacuum pumps - HCBBS Forum
33. For the body flange of American standard valves with a size of 3” 150lb, should the dimensions be based on Table 8 for flanges or Table 9 for flanged fittings as per ASME B16.5? - HCBBS Forum
34. 【Daily Topic】【Engineering Version 20160723】 - HCBBS Forum
35. Structural components of plate heat exchangers and their functions - HCBBS Forum
36. Siemens PLC300 numerical conversion issue - HCBBS Forum
37. Regarding equipment bidding - HCBBS Forum
38. The wastewater discharged after testing is yellow; what is the solution? - HCBBS Forum
39. Let’s discuss everyone’s understanding of grooves - HCBBS Forum
40. How to drill holes in pipeline machinery - HCBBS Forum
41. 【Idiom Chain】Let’s go! 7.18 I’ll reveal a secret! - HCBBS Forum
42. Please provide a interlock logic diagram for controlling the start and stop of a pump using DCS - HCBBS Forum
43. Safety Technology Exchange Edition: Daily Question (2016.7.22) - HCBBS Forum
44. Seeking detailed guidelines for the performance evaluation of production workshop team leaders and team members - HCBBS Forum
45. 【 Alkylation 】 Request for the research report on alkylation in the first half of 2016 - HCBBS Forum
46. Selection of simulation thermodynamics methods - HCBBS Forum
47. Calculations for non-standard disc-type end caps - HCBBS Forum
48. Corrosivity of piperazine - HCBBS Forum
49. Are there any people involved in producing acid from zinc concentrate? Let’s discuss the process - HCBBS Forum
50. What are the negative effects of running a screw pump in reverse? - HCBBS Forum
51. The standards set by the Ministry of Chemical Industry are rarely updated; HG20570 is a standard from 1995 - HCBBS Forum
52. Permanent magnet composite motor - HCBBS Forum
53. After desulfurization, the hydrogen sulfide level is normal, but it’s much higher after ammonium sulfate treatment! - HCBBS Forum
54. Heat loss from hot objects - HCBBS Forum
55. How to calculate the balance of water and steam generation in industrial boilers - HCBBS Forum
56. What types of equipment and materials does a refinery usually purchase? - HCBBS Forum
57. What valves are installed in gas pipelines? - HCBBS Forum
58. Praise quickly, find the mistakes slowly - HCBBS Forum
59. Discussion on Fourier’s law, 11 years of professional knowledge 67 - HCBBS Forum
60. Can the LPG tank emergency shut-off valve be opened frequently? - HCBBS Forum
61. Hydrocracking shutdown steps - HCBBS Forum
62. Regarding the issue of control valves equipped with interlocked solenoid valves - HCBBS Forum
63. Shaft seal heater - HCBBS Forum
64. Explosion protection issues of flameproof instruments - HCBBS Forum
65. Latest catalog of special equipment - HCBBS Forum
66. Steel frame for tower equipment - HCBBS Forum
67. How to choose a compressor air valve - HCBBS Forum
68. What permits are required for the dispensing of liquid nitrogen? - HCBBS Forum
69. I want to have a machined part made; I’m checking to see if there are suitable manufacturers available. - HCBBS Forum
70. Cut gas pipes will have burrs at the cut edges; what is the best tool for grinding them? - HCBBS Forum
71. What are the reasons why a homogenizer cannot build pressure? - HCBBS Forum
72. I need a TIA Portal simulation document. . . - HCBBS Forum
73. Dry gas system purging - HCBBS Forum
74. Yangtze Coal-to-Gas Advanced Technology Wins First Prize for Scientific and Technological Progress at Sinopec - HCBBS Forum
75. How is the leakage rate of a pneumatic control valve calculated? - HCBBS Forum
76. Regarding \"sliding verification\", I can’t log in to my account – is this a form of discrimination based on internet speed? - HCBBS Forum
77. How to consider snow load in pressure vessel design - HCBBS Forum
78. How to raise the temperature of liquid nitrogen from -196 degrees to -50 degrees. I earnestly beg for your guidance - HCBBS Forum
79. Regarding the selection of tail lugs - HCBBS Forum
80. 【Advice】These mistakes must not be made! - HCBBS Forum
81. Regular reversal issue of cryogenic liquid piston pumps - HCBBS Forum
82. Sign-in record post from July 18, 2016 - HCBBS Forum
83. What are the causes of abnormal fluctuations in electrolyzer current? - HCBBS Forum
84. Are the rewards for replying increased? ? ? - HCBBS Forum
85. Are the vapor-liquid separation tank and the steam flash tank just different names for the same thing? Do they have the same working principle? - HCBBS Forum
86. Can the low liquid level in a floating roof tank with a nitrogen seal be drawn below the floating disk? Standard SH/T3007 states that drawing is not allowed; the reason is fear of air entering... - HCBBS Forum
87. 【Daily Topic】【Production Version 20160714】 - HCBBS Forum
88. One question per day; those who answer correctly receive 5 wealth points, and those who participate receive 2 wealth points； Question 321 [ - HCBBS Forum
89. Friends who are familiar with welding materials have a question they’d like to ask everyone - HCBBS Forum
90. Regarding the control of the water-to-hydrogen ratio at the start of hydrogen production? - HCBBS Forum
91. 【Weekly Topic】Transformation of sulfur in coal during gasification - HCBBS Forum
92. Requirements for VCM content in the wastewater at the bottom of the PVC wastewater stripping tower - HCBBS Forum
93. Environmental Protection Daily Tip – July 23: Reward for participation; an additional 5 rewards for answering 3 questions correctly - HCBBS Forum
94. 【Daily Topic】【Engineering Version 20160715】 - HCBBS Forum
95. Safety protection for high-power, high-voltage, and high-current equipment - HCBBS Forum
96. What are the differences in the specifications for ESD and SIS systems? - HCBBS Forum
97. Wastewater treatment from coal tar hydrogenation - HCBBS Forum
98. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； July 24th - HCBBS Forum
99. What causes the increase in transformation resistance? - HCBBS Forum
100. The difficult legal process for claiming compensation for pneumoconiosis - HCBBS Forum