English — Forum #723 (Page 580/642)

1. The \"Regulatory Requirements for the Lead and Zinc Industry (2015)\」no longer mention a production capacity of 100,000 tons per year – is this a step backward? - HCBBS Forum
2. Sampling and testing of the gas content in ethylene oxide cylinders - HCBBS Forum
3. Pressure issues in the balance pipes of centrifugal compressors - HCBBS Forum
4. Natural gas LNG price - HCBBS Forum
5. I encountered a scammer who was recruiting under the guise of \"Hualu Engineering\"; be careful everyone - HCBBS Forum
6. knock out drum - HCBBS Forum
7. The no-load test run of the syngas compressor in the plant for the Xinjiang Zhongneng project of the Xinjiang company was successful on the first attempt - HCBBS Forum
8. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 258 - HCBBS Forum
9. Sea friends, which design institute was responsible for designing the Phase II project of Wanxiang Petroleum Storage and Transportation? - HCBBS Forum
10. 【Weekly Topic】- What to do if a company discharges wastewater secretly through hidden pipes? - HCBBS Forum
11. What to do when there’s not much work to do - HCBBS Forum
12. Are there any additional details regarding steel-lined plastic pipes? - HCBBS Forum
13. Why must a thermal gas mass flow meter used to measure compressed air flow be installed after a dryer? - HCBBS Forum
14. Can the anchor bolts for the water pump base plate be replaced with expansion bolts? - HCBBS Forum
15. Issues related to the layout of hose stations as required by regulations - HCBBS Forum
16. Regarding ultrasonic level gauges - HCBBS Forum
17. Can a pipe flame arrester be connected directly to a valve? - HCBBS Forum
18. How to check your progression level - HCBBS Forum
19. 【Weekly Topic】- How to manage chemicals used in wastewater treatment - HCBBS Forum
20. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 254 - HCBBS Forum
21. Can fiberglass-reinforced plastic materials resist fire? - HCBBS Forum
22. Low-temperature pipeline airtightness test - HCBBS Forum
23. Caring too much is a sign of an incorrect mindset! - HCBBS Forum
24. Number of pressure pipelines - HCBBS Forum
25. The amine solution is not up to standard - HCBBS Forum
26. Why are single-screw pumps designed to be eccentric? - HCBBS Forum
27. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 262 - HCBBS Forum
28. Cables, instrument trays, and heat pipes - HCBBS Forum
29. What is the method for calculating the unit price of utility materials in chemical/petroleum refining plants? What are everyone’s unit prices? How was it calculated? - HCBBS Forum
30. I was a first-year college student in 2009; why do I find myself back in high school these days? - HCBBS Forum
31. The application of anthracite in gasification - HCBBS Forum
32. Does changes in gas temperature affect desulfurization efficiency? - HCBBS Forum
33. Which standard specifies that flange gaskets can only be used once? - HCBBS Forum
34. Xiaobai is seeking help! How should small storage tanks be designed? - HCBBS Forum
35. Looking for recommendations for good brands of HF gas detection alarms. - HCBBS Forum
36. Turbine issues - HCBBS Forum
37. What considerations should be taken regarding the use and storage of chemical reagents? - HCBBS Forum
38. Gasoline tank truck unloading - HCBBS Forum
39. 【Daily Question】Basic knowledge of coking: +6 wealth for correct answers, +2 wealth for participation. Question 5 from 201507 - HCBBS Forum
40. Why is the material of the seawater pump chosen that way? - HCBBS Forum
41. Two years since graduation; a frustrated person carries a frustrated heart - HCBBS Forum
42. Regarding the switching issue of reciprocating residential water pumps - HCBBS Forum
43. Free anonymous accounts allow freedom to post, but what about management? - HCBBS Forum
44. Solubility of the C4 components in acetonitrile - HCBBS Forum
45. Dynamic balance standards - HCBBS Forum
46. What are the advantages and disadvantages of water-cooled powder flow coolers in compound fertilizers? - HCBBS Forum
47. Requirements for centrifugal pump outlet piping - HCBBS Forum
48. Differences between AQ 3047—2013 and HG23010—1997 - HCBBS Forum
49. The sealing issue - HCBBS Forum
50. Are the color codes applied differently during construction for pipes made of different materials? - HCBBS Forum
51. Scale inhibition, corrosion prevention and energy saving in low-pressure boilers - HCBBS Forum
52. Changes in the outlet pressure and head of a centrifugal pump after changes in medium density - HCBBS Forum
53. Can flameproof instruments be connected directly? - HCBBS Forum
54. 【Daily Question】Chemical Engineering Principles 112: Viscosity (July 17) - HCBBS Forum
55. Pressure pipeline - HCBBS Forum
56. Where can I buy products with a relatively low purity - HCBBS Forum
57. How to select a calibration gas for a gas analyzer? - HCBBS Forum
58. Screw refrigeration unit - HCBBS Forum
59. From which aspects can the economic efficiency of circulating fluidized bed boiler operation be assessed? - HCBBS Forum
60. Investigation Report on Over-extraction of Groundwater and Illegal Discharge of Wastewater in the Shuishui Coal–Shenhua Ordos Coal-to-Oil Project - HCBBS Forum
61. Rules for Becoming a Workplace Queen - HCBBS Forum
62. Crystal Processing R&D Engineer, Shenzhen – Referral bonus of 500 yuan - HCBBS Forum
63. Multiple-choice questions - HCBBS Forum
64. Design pressure and test pressure of pressure vessels - HCBBS Forum
65. What conditions does the piping discipline put forward to the plumbing and electrical disciplines? - HCBBS Forum
66. 【Daily Question】7.22 Reply +2； To +3 - HCBBS Forum
67. Methanol Weekly Topic: Why does the methanol catalyst bed overheat? 2015.07.27--08.02 - HCBBS Forum
68. Discussion on storage tank piping issues? - HCBBS Forum
69. Can concentrated sulfuric acid tanks and concentrated alkali tanks be placed together? - HCBBS Forum
70. IP 68 gearbox - HCBBS Forum
71. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 260 - HCBBS Forum
72. What skills are necessary to be a meter technician? - HCBBS Forum
73. Why is the inlet of a methanol tank at normal pressure located at the bottom? - HCBBS Forum
74. Regarding underground storage tanks and fire dikes - HCBBS Forum
75. Does Haiyou have a presence in Jiangnan Environmental Protection? - HCBBS Forum
76. I have a question regarding the paint on the valve surface - HCBBS Forum
77. Can connecting a variable-frequency pump and a constant-frequency pump in parallel save energy? - HCBBS Forum
78. What preparations are needed in advance for atmospheric-pressure equipment in case of heavy rainfall? - HCBBS Forum
79. Precautions for transferring liquefied gas - HCBBS Forum
80. Guangsha (Zhoushan) Energy is seeking talented oil depot management professionals to join us - HCBBS Forum
81. MTBE recovery methanol deacidifier - HCBBS Forum
82. Issues related to zinc oxide production 2 - HCBBS Forum
83. Daily Question 2015.7.19 (EIA Discussion): 3 Wealth points for replies, plus 5 Wealth points for correct answers (multiple-choice question) - HCBBS Forum
84. What are the advantages and disadvantages of installing in-situ level gauges on the head and the body of a horizontal tank? - HCBBS Forum
85. “Decision of the State Council on Amending the Regulations on the Management of Survey and Design Work for Construction Projects”, - HCBBS Forum
86. Reactor jacket temperature measurement - HCBBS Forum
87. How to design a jet mixer for slightly positive pressure gases - HCBBS Forum
88. Regarding the use of PVC material! - HCBBS Forum
89. Which book does this passage come from? - HCBBS Forum
90. 【Daily Question】150720 What are the main purposes, essence, and basic principles of flue gas control? - HCBBS Forum
91. 【Daily Question】Question from Issue 20150723 - HCBBS Forum
92. I’m unemployed; it seems that it’s not easy to find a job as a mechanic! - HCBBS Forum
93. Discussion on the process operation of heat exchange equipment - HCBBS Forum
94. June 2015 Outstanding Original Technology Theme Selection Contest (Advanced Evaluation Stage for the Technology Category) - HCBBS Forum
95. What is the difference between a transformer having a missing phase and being grounded? - HCBBS Forum
96. White powder appears in the silicone light separation tower - HCBBS Forum
97. It’s been three months since I joined the chemical engineering company - HCBBS Forum
98. The temperature at the drive end of the chilled water pump is very high, exceeding 65. What is the reason - HCBBS Forum
99. How should the sizes of the steel beams and columns supporting a larger reaction vessel be calculated? - HCBBS Forum
100. If the oil situation remains weak for a long time, how can we establish a stable life? - HCBBS Forum