English — Forum #723 (Page 470/642)

1. » Does a back pressure valve require TS certification?« - HCBBS Forum
2. What is aggregated aluminum chloride? - HCBBS Forum
3. 【Daily Question】Question from Issue 20151103 - HCBBS Forum
4. Problem with the thermometer; please help solve it - HCBBS Forum
5. Put yourself in their shoes and think from their perspective. - HCBBS Forum
6. Environmental Protection Daily Quiz: October 27 – Participate for prizes; 3 correct answers earn an additional prize - HCBBS Forum
7. How to clad NO8825 on S30408 steel plates? - HCBBS Forum
8. Issue with stamping drawings - HCBBS Forum
9. New member, seeking advice: Do the functional departments in chemical companies need to conduct safety training on a monthly basis? - HCBBS Forum
10. We warmly welcome the pay_modem moderator to join our management team for the chemical analysis section - HCBBS Forum
11. What are the requirements for selecting and installing an average velocity tube flow meter? - HCBBS Forum
12. Sun Jian beheads Hua Xiong with warm wine——Reposted - HCBBS Forum
13. Test pressure for pipeline leak testing - HCBBS Forum
14. Which are the essential systems related to environmental management? - HCBBS Forum
15. 【Daily Question】2015.10.28 Label design for overlapping heat exchangers (Top 80 participants + 2 rewards) - HCBBS Forum
16. What is the role of enterprise safety production standards? - HCBBS Forum
17. Summary of imported crude oil usage and allowable amounts under the \"dual-delegation\" policy in 2015 - HCBBS Forum
18. No wealth - HCBBS Forum
19. Electrical explosion protection class for coal water slurry gasification and coal grinding plant - HCBBS Forum
20. Small explosion-proof plug sockets - HCBBS Forum
21. ProTech 203 WOODWARD - HCBBS Forum
22. The greatest challenge for a person is to understand themselves - HCBBS Forum
23. Regarding the final tightening time of high-strength bolts - HCBBS Forum
24. Low-temperature storage tank - HCBBS Forum
25. Question about vapor pressure - HCBBS Forum
26. There is noticeable visible suspended matter in the water every morning - HCBBS Forum
27. Let’s work on Question 40-2 from the 2015 First-Class Constructor Exam in \"Engineering Economics\": 60 multiple-choice questions – there are rewards for correct answers - HCBBS Forum
28. 【Daily Question】Question from Issue 20151027 - HCBBS Forum
29. Nitrogen filling issue in chlorate decomposition tank - HCBBS Forum
30. Welding process - HCBBS Forum
31. 【Daily Question】Question from Issue 20151103 - HCBBS Forum
32. 【Daily Question】Chemical Engineering Principles 218: Bubble Point Temperature (October 30) - HCBBS Forum
33. Weekly topic: 5 wealth points for those who answer correctly, 2 wealth points for participation； Question 207 - HCBBS Forum
34. Regarding the misalignment amount and edge angle - HCBBS Forum
35. On-line detection of syngas - HCBBS Forum
36. As a manager in the safety and environmental department of a chemical company, one should improve processes in which areas to protect oneself and reduce risks to oneself... - HCBBS Forum
37. I have a question regarding high-temperature butterfly valves - HCBBS Forum
38. What is the efficiency of a tray? What are its influencing factors? - HCBBS Forum
39. 【Daily Question No. 16】November 2, 2015: +2 wealth for participation, +3 additional wealth for correct answers - HCBBS Forum
40. Seek **the Safety Supervision Administration’s compilation of typical cases of production safety accidents for the 2015 Safety Month (2015 edition)... - HCBBS Forum
41. Usage and selection of pneumatic diaphragm pumps - HCBBS Forum
42. Men sometimes also have those days when their testicles hurt - HCBBS Forum
43. As specified in the chemical engineering handover technical documents - HCBBS Forum
44. Converging tower: modifying one Spec does not lead to convergence. When switching back to the original Spec, it fails to converge~~~~ - HCBBS Forum
45. What are the disadvantages of horizontal force impulse flowmeters? - HCBBS Forum
46. Safety management throughout the entire process - HCBBS Forum
47. The industry is in a downturn, salaries have dropped by 1,000 – how can one survive? - HCBBS Forum
48. Where are metal or non-metallic expansion joints installed in circulating fluidized bed boilers? - HCBBS Forum
49. Why is water used as the heat exchange medium in industrial cooling? - HCBBS Forum
50. Discharge temperature of the safety valve for mixed components? - HCBBS Forum
51. What are the design flaws of the radial cold-jet ammonia synthesis tower? - HCBBS Forum
52. Fire and explosion protection devices in the petrochemical industry - HCBBS Forum
53. I would like to ask, how many cubic meters is one ton of urea used in SNCR systems? Please advise, experts - HCBBS Forum
54. Solvent deasphalting, problems with deoiled asphalt. - HCBBS Forum
55. Frosting on the expansion valve - HCBBS Forum
56. Recruitment for instrumentation, water supply and drainage, and chemical process engineering specialties - HCBBS Forum
57. Everyone, let’s work on question 35-2: multiple-choice questions 49-50 from the 2015 First-Class Constructor Examination in Engineering Economics; there will be a reward for correct answers - HCBBS Forum
58. What is the typical salary for a safety and environmental manager in a chemical plant? - HCBBS Forum
59. 【Daily Question】2015.10.30 (1 wealth point for a reply, +3–8 wealth points for a correct answer) - HCBBS Forum
60. Instruction Manual for Variable Frequency Controller - HCBBS Forum
61. What parameters should be monitored when electroplating wastewater, after pretreatment, enters the biochemical tank? - HCBBS Forum
62. Choosing a plate heat exchanger – difficult to determine the material when water quality is complex? - HCBBS Forum
63. What type of gasket should be used at the flange connections of gas pipelines? - HCBBS Forum
64. Pay attention to the safety management of hazardous work areas in confined spaces - HCBBS Forum
65. Why are all the screenwriters for “Haichuan Irrigation Co., Ltd. Convenience Store” women? - HCBBS Forum
66. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 347 - HCBBS Forum
67. MTO compression unit - HCBBS Forum
68. Joint Learning*1028: +2 wealth for participation, +9 wealth for correct answers - HCBBS Forum
69. Control of fine slag char in space furnaces - HCBBS Forum
70. Weekly topic: 5 Wealth points for correct answers, 2 Wealth points for participation； Question 209 - HCBBS Forum
71. How is the concentrated water from water treatment handled in your factories? Reuse? Emissions? - HCBBS Forum
72. Issues related to the incineration of hazardous waste - HCBBS Forum
73. 【Daily Question No. 43】October 29, 2015: +2 wealth for participation, plus another +3 to +8 wealth for correct answers - HCBBS Forum
74. Regarding the issue of mixing K-type compensation wires - HCBBS Forum
75. Civil Engineering Structure Discussion Area ---- [Daily Question] Question from Issue 20151101 - HCBBS Forum
76. What are the hazards of too low a level in the separator? - HCBBS Forum
77. Low-rank coal to water-coal slurry - HCBBS Forum
78. Seeking help with the E+H51 radar level gauge - HCBBS Forum
79. Integrated AO equipment - HCBBS Forum
80. Thermal power generation - HCBBS Forum
81. Help, what is the technical name for the water connection seal of a pump? - HCBBS Forum
82. 【Daily Question】Question from Issue 20151104 - HCBBS Forum
83. Regarding the rotation direction of the fan in the pump motor? - HCBBS Forum
84. Steps for starting and stopping a water ring vacuum pump - HCBBS Forum
85. 【Daily Question】2015.10.27 (2 wealth points for replying, plus 3–8 more wealth points for a correct answer) - HCBBS Forum
86. Why is the water quality of the influent water to water treatment plants generally higher in winter and lower in summer throughout the year? - HCBBS Forum
87. How to conduct a demonstration of process safety reliability - HCBBS Forum
88. What is the impact of inert gas content on methanol synthesis? - HCBBS Forum
89. 【Daily Question No. 49】November 06, 2015: +2 wealth for participation, +3 to +8 wealth for correct answers - HCBBS Forum
90. Pressure control of industrial boiler drum - HCBBS Forum
91. 【Daily Question】Question from Issue 20151030 - HCBBS Forum
92. How should TRUNNION in ball valves be translated? Is it an ear shaft? - HCBBS Forum
93. Working principle of the drop test machine - HCBBS Forum
94. Sinopec’s Xinjiang coal-to-gas transmission pipeline project approved by the National Development and Reform Commission - HCBBS Forum
95. 【Daily Question】Chemical Engineering Principles 223: Heat Exchangers with Separating Walls (November 4) - HCBBS Forum
96. Do you know anything about Dalian West Pacific Petrochemical Co., Ltd., abbreviated as WEPEC? - HCBBS Forum
97. Sources of the transformed gas, its main components and composition, and how to pre-treat impurities—dust? - HCBBS Forum
98. Regarding corrosion protection in wet flue gas desulfurization towers - HCBBS Forum
99. The difference between radar level gauges and guided wave radar level gauges - HCBBS Forum
100. Comparison of operating costs between lithium bromide refrigeration and electric refrigeration - HCBBS Forum