English — Forum #723 (Page 566/642)

1. How is the air volume of a fan calculated? - HCBBS Forum
2. Crimp connectors, crimp ball valves; the installation method is as follows - HCBBS Forum
3. Can the bearing housing be cooled with cold water? - HCBBS Forum
4. Can an excessive amount of PAC added have an impact on COD? - HCBBS Forum
5. Liquid level fluctuations - HCBBS Forum
6. 【Haichuan Safety and Environment Cup】--4 insights on the boiler MFT accident caused by tripping during the switching of the feed water pump 0009+, + Guan Gongyu - HCBBS Forum
7. Small cracks in infill walls - HCBBS Forum
8. 【Daily Question】2015.07.31 Saturated vapor pressure of liquefied petroleum gas (first 100 replies + 2 points; +3–8 additional points for correct answers) - HCBBS Forum
9. The product residue oil contains water; experts, please help! ! ! ! - HCBBS Forum
10. Which quota should be used for the application of elastic putty with mineral oil at room temperature at the bottom of tanks? - HCBBS Forum
11. Daily Question 2015.8.4 (EIA Discussion): 3 Wealth points for replies, plus 5 Wealth points for correct answers (single-choice question) - HCBBS Forum
12. Is it feasible to change from wet filtration to dry filtration? - HCBBS Forum
13. Why can’t mechanical protection for lightning protection down conductors be provided using galvanized steel pipes? - HCBBS Forum
14. Why aren’t the points from WeChat sign-ins displayed here? ? 、 - HCBBS Forum
15. Procedures for establishing a hazardous waste disposal company - HCBBS Forum
16. 【Daily Question】20150804 – Knowledge about the properties of ammonia (2 wealth points for a reply, +3 wealth points for a correct answer) - HCBBS Forum
17. My car was stolen - HCBBS Forum
18. Calculation of the hydrogen-scavenging oil ratio for hydrogenation units - HCBBS Forum
19. Can flammable liquid pipelines and power and instrumentation cable trays be installed together? - HCBBS Forum
20. Seeking help to design an explosion-proof shelter (paid service) - HCBBS Forum
21. Regulations on the Management of Operating Procedures for Production Units in Refining and Chemical Enterprises – Summary Post - HCBBS Forum
22. No experience — Certification — Job hunting - HCBBS Forum
23. Two physics and chemistry problems; seeking help from experts - HCBBS Forum
24. 【Weekly Topic】The topic on whether pressure relief valves need to be calibrated (second week of August) - HCBBS Forum
25. What type of adsorbent can be used for drying instrument air? - HCBBS Forum
26. Installation of the six coal mills in the gasification unit of Shenhua Ningmei Group’s coal-to-oil project has been completed - HCBBS Forum
27. Intermittent oscillation of switching power supplies - HCBBS Forum
28. A question related to boilers will be asked, and those in the top 60 will receive a certain score. - HCBBS Forum
29. Help needed for industrial compressors - HCBBS Forum
30. Notice of Passing the Basic Examination for Registered Chemical Engineers in 2014 – Henan - HCBBS Forum
31. Recruitment open for tar hydrogenation at Hebi Huashi Suspended Bed Plant - HCBBS Forum
32. How much alcohol did you drink the first time you got drunk? - HCBBS Forum
33. Registration for the consultation exam has been suspended - HCBBS Forum
34. Fan series connection - HCBBS Forum
35. Is the flow rate measured by a differential pressure flow meter related to the density of the medium? - HCBBS Forum
36. What methods do we generally use to adjust high pressure in the circulating water system? - HCBBS Forum
37. Foreign Language for Professional Titles - HCBBS Forum
38. I’ll come up with a question related to boilers; those in the top 30 will receive a certain score - HCBBS Forum
39. 【Process Division】2015 Technical Team Promotion Application Please review and approve~ - HCBBS Forum
40. What are the reasons for low pressure in the circulating cooling water system, and how to address it? - HCBBS Forum
41. Help guess two substances. - HCBBS Forum
42. Summer air cooler load... - HCBBS Forum
43. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 268 - HCBBS Forum
44. 【Daily Question】Question from Issue 20150806 - HCBBS Forum
45. Is the liquid exit velocity of a centrifugal pump related to its density? - HCBBS Forum
46. What types of failures occur in the return material system of your plant’s circulating fluidized bed boilers during actual operation? - HCBBS Forum
47. How are the costs for the process package calculated? - HCBBS Forum
48. Design of shared systems - HCBBS Forum
49. Advantages and disadvantages of sulfuric acid cleaning and sodium hypochlorite cleaning - HCBBS Forum
50. Critical pressure drop ratio of superheated steam - HCBBS Forum
51. 2. Changes in the operating point of the centrifugal pump during production imply changes in ( ) - HCBBS Forum
52. Looking for an example of Modbus 485 communication for the JX-300XP central control system; the more detailed, the better! Thank you all - HCBBS Forum
53. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 265 - HCBBS Forum
54. Aspen Plus V7.2 cannot run under .NET Framework 4.5 - HCBBS Forum
55. Head thickness - HCBBS Forum
56. Fire control room - HCBBS Forum
57. Can a positive displacement pump be easily damaged from frequent start-stop operations? - HCBBS Forum
58. Go to Zhangbei Grassland - HCBBS Forum
59. Smart plant 3D - HCBBS Forum
60. What are some good brands of imported ultrasonic gas flowmeters? - HCBBS Forum
61. Which is the best for laboratory testing technology training? - HCBBS Forum
62. 【Basic Knowledge of Glossary Definitions for “Polymers and Materials”-009】Glossary definitions related to polymers - HCBBS Forum
63. Does the infrared carbon dioxide analyzer experience freezing issues? - HCBBS Forum
64. Which is better, the position of Head of Safety and Environment or Head of Corporate Management? Please give me some guidance, senior - HCBBS Forum
65. Regarding the temperature rise issue of the exhaust gas absorption tower - HCBBS Forum
66. Regulations on the Management of Operational Engineers in Production Teams of Refining and Chemical Enterprises - HCBBS Forum
67. Coating thickness measurement - HCBBS Forum
68. Transmitter plug - HCBBS Forum
69. Is it absolutely necessary for the inlet pipeline of the vapor-liquid separator to be bag-free? - HCBBS Forum
70. What is the significance of maintaining stable water quality in circulating cooling water? - HCBBS Forum
71. 【Haichuan Safety and Environment Cup】--Case sharing on an incident where a 0008+ water pump leak caused burns to people + Guan Gongyu - HCBBS Forum
72. Learn from Wei Xiaobao: How to survive in the workplace - HCBBS Forum
73. Issues with the version of the standards used in product production? - HCBBS Forum
74. Plate heat exchanger calculation - HCBBS Forum
75. Electric valve failure - HCBBS Forum
76. 【Basic Knowledge of Glossary Definitions for “Polymers and Materials”-013】Glossary definitions related to polymers - HCBBS Forum
77. Request a simple process flow for boiler water - HCBBS Forum
78. How long does it take for an intermediate engineer to go from evaluation to receiving the certificate? - HCBBS Forum
79. How to choose between horizontal and vertical check valves - HCBBS Forum
80. Multistage centrifugal pumps are equipped with both rolling bearings and shaft bearings - HCBBS Forum
81. 【Basic Knowledge of Glossary Explanations for “Polymers and Materials”-010】Glossary explanations related to polymers - HCBBS Forum
82. From the perspective of \"reducing costs and improving efficiency\", what should sulfur-based acid production enterprises do? - HCBBS Forum
83. Are there any friends who are involved in plastic oil-related businesses? - HCBBS Forum
84. Made in China 2025: How should those involved in control play a greater role? - HCBBS Forum
85. Is it necessary to install a vent at the outlet of the Roots blower? - HCBBS Forum
86. Laying of cable trays - HCBBS Forum
87. How to calculate the desorption air volume for adsorption-catalytic combustion of organic waste gases - HCBBS Forum
88. Harbin Guanghan New Energy Power Co., Ltd. is urgently seeking a chief thermal engine engineer/specialist - HCBBS Forum
89. SINOPEC Association for Production Development Document [2012] No. 115 - HCBBS Forum
90. Mechanical operation test of Shaanxi Blower centrifugal compressors - HCBBS Forum
91. Lab-scale pilot study report on high-salinity wastewater from a petrochemical plant - HCBBS Forum
92. Questions regarding the design, calculation, and simulation of coil-type heat exchangers using ASPEN - HCBBS Forum
93. Xiamen University is recruiting R&D engineers, requiring a PhD - HCBBS Forum
94. Fire alarm button, indicator light - HCBBS Forum
95. How should the design temperature of the torch main pipe be determined? - HCBBS Forum
96. What type of gasket is this? - HCBBS Forum
97. The use of hydraulic couplings in water-coal slurry gasification rod mills - HCBBS Forum
98. Technical discussion: Issues with civil engineering structural materials - HCBBS Forum
99. Determination of design temperature and design pressure for steam buffer tanks - HCBBS Forum
100. Risk assessment of primary water used in coolers - HCBBS Forum