English — Forum #723 (Page 409/642)

1. Seeking advice on selecting an online pH electrode for chlor-alkali dechlorination - HCBBS Forum
2. 【Daily Question】2015.12.21 Participation +2 Wealth； +3 to 8 wealth for correct answers - HCBBS Forum
3. Can the control valve be adjusted to any opening degree? - HCBBS Forum
4. Tour Group Announcement: Welcome 2887848 Super Edition to join the tour group - HCBBS Forum
5. There is foam in the oil sump of the double-stage compressor; the auxiliary oil pump works fine, but there is a lot of foam in the oil sump of the shaft head pump as well as in the crosshead sight glass. . - HCBBS Forum
6. Suggestions for optimizing coal grinder management - HCBBS Forum
7. The operating temperature is higher than the design temperature - HCBBS Forum
8. Calibration laboratory certification - HCBBS Forum
9. How to convert saturated steam into subcooled water. - HCBBS Forum
10. Interface types of high-temperature centrifugal pumps - HCBBS Forum
11. What is the difference between a pressure guide tube and a capillary differential manometer? - HCBBS Forum
12. Questions regarding the ESD system - HCBBS Forum
13. 【Weekly Topic】12.14~12.20 Characterization of Boiler Capacity - HCBBS Forum
14. Filler blockage - HCBBS Forum
15. What are the factors that affect the pH value of the steam generated as a by-product in converted waste boilers? - HCBBS Forum
16. Do you know the consequences of various problems with air compressors? - HCBBS Forum
17. How does the motor power change? - HCBBS Forum
18. What does performance standard mean? - HCBBS Forum
19. 【Weekly Topic】A discussion on how to ensure the safe and stable operation of equipment throughout the New Year season - HCBBS Forum
20. Sign-in record post dated December 24, 2015 - HCBBS Forum
21. Environmental Protection Daily Quiz: December 20 – Participate for prizes; 3 correct answers earn an additional prize - HCBBS Forum
22. Episode 8 of the University Debate Series: Do you support college students starting businesses? And how should this be balanced? - HCBBS Forum
23. Methanol synthesis - HCBBS Forum
24. On the Winter Solstice, what are you planning to eat for dinner? - HCBBS Forum
25. How to deal with PROII files that grow from a few hundred kb to over 2M and become slow to run? - HCBBS Forum
26. 【Daily Question】12.19 Fill-in-the-blank questions on hydrogen corrosion (3 wealth points for a reply; +3 to –8 wealth points for a correct answer) - HCBBS Forum
27. Ethanol from coal - HCBBS Forum
28. Clarifications on Hangyang’s instructions – come in! - HCBBS Forum
29. Pump sealing issue - HCBBS Forum
30. Environmental Protection Daily Quiz 12.26: Participate for prizes; 3 answers correct and you’ll get another 3 prizes - HCBBS Forum
31. What material is used for the pipelines in the MTO alkali washing system? - HCBBS Forum
32. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 395 - HCBBS Forum
33. How is the variable-speed control system of the Shanghai Huan Tian reciprocating machine? - HCBBS Forum
34. Vortex flow meters and Coriolis flow meters are used in parallel - HCBBS Forum
35. Smart positioners can change the flow characteristics of valves - HCBBS Forum
36. Main fan damping check valve - HCBBS Forum
37. On the thermal reaction process of flue gas cooling during flue gas desulfurization - HCBBS Forum
38. 20151219 One question per day - HCBBS Forum
39. I would be grateful if someone knowledgeable could help upload the electronic version of \"Refinery Design and Engineering\" - HCBBS Forum
40. Why are flange covers used at the ends of many utility main pipes - HCBBS Forum
41. The origins of catalytic reforming and alkylation technologies - HCBBS Forum
42. Throttling orifice plate - HCBBS Forum
43. Does the acidic gas stream contain a catalyst? - HCBBS Forum
44. Equipment head calculation - HCBBS Forum
45. 【New Energy Applications】Kilowatt-class vanadium battery products have been developed - HCBBS Forum
46. Reviewing the old to gain new insights: Common faults of bag dust collectors and their solutions - HCBBS Forum
47. Coal tar hydrogenation catalyst - HCBBS Forum
48. Award Ceremony for Outstanding Members of the Technical Team at the 2015 HaiChuan Chemical Forum - HCBBS Forum
49. Advantages of electrochemical water treatment - HCBBS Forum
50. Fractionating tower, reflux, product quality control - HCBBS Forum
51. I’m a newcomer to the chemical industry; I have a question regarding reflux - HCBBS Forum
52. Talk about the feelings and helplessness of being an analyst - HCBBS Forum
53. Why is the volume ratio of liquid to air for saturated vapor pressure as 1:4 according to Reid? - HCBBS Forum
54. 【Daily Question】12.22 Term Explanation: Cold Filter Point - HCBBS Forum
55. Does anyone have a standard compilation of pumps commonly used in the chemical industry and for wastewater treatment? - HCBBS Forum
56. 【Daily Question No. 47】December 17, 2015: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
57. Issues regarding the calibration of safety valves in centrifugal compression units - HCBBS Forum
58. New standards for liquefied gas residue levels - HCBBS Forum
59. 【Daily Question No. 85】December 28, 2015: +2 wealth for participation, plus another +3 to +8 wealth for correct answers - HCBBS Forum
60. Layout method for belt conveyor tensioning devices - HCBBS Forum
61. Ground deflagration ignition system - HCBBS Forum
62. The two liquids are pressurized by pumps and then mixed through a tee; the diameter of the tee is specified - HCBBS Forum
63. I want to change jobs after the New Year; I’m very confused - HCBBS Forum
64. How can the busbar copper strips that supply power to the electrolyzers in the electrolysis plant be made explosion-proof? - HCBBS Forum
65. Acidic wastewater with excessive iron ions - HCBBS Forum
66. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 399 - HCBBS Forum
67. I can’t understand the specifications of thermal resistors - HCBBS Forum
68. It’s so hard; I feel like I won’t be able to get into graduate school - HCBBS Forum
69. How to fix high-altitude vent pipes - HCBBS Forum
70. 【Daily Question】12.26 Multiple-choice Question: Total temperature at the outlet of the heating furnace - HCBBS Forum
71. Colleagues in the boiler section, we hope you will give strong support to the comprehensive guide on equipment anti-freezing measures for equipment to get through the winter in the [Mechanical Section] - HCBBS Forum
72. Who has used an A90 gas chromatograph? - HCBBS Forum
73. 【Daily Topic】【Storage & Transportation Version 20151221】 - HCBBS Forum
74. Is this the correct way to calculate for a differential pressure transmitter? - HCBBS Forum
75. Does DCS have positive and negative effects? How is it defined? What is the difference between the direct and reverse action of a valve? - HCBBS Forum
76. Gas phase-MTBE-sulfur balance - HCBBS Forum
77. Sign-in record post dated December 18, 2015 - HCBBS Forum
78. I have just started working with valves (pneumatic valves). Could any expert tell me the difference between linear sealing and surface sealing between the valve core and the valve seat? - HCBBS Forum
79. The death of one person at Shenhua Shenning Group on December 3 highlights the importance of implementing clear responsibilities for safety - HCBBS Forum
80. I would like to ask the experts here about the measurement of pressure and liquid level - HCBBS Forum
81. Civil Engineering Structure Discussion Area ---- [Daily Question] Question from the 20151220 issue - HCBBS Forum
82. I’m really shocked – an allergy to beer can have such a strong effect. Ways to relieve an allergy to alcohol - HCBBS Forum
83. How much does a set of 50t sewage treatment equipment used for coal gas production cost? - HCBBS Forum
84. The outer wall temperature of the gasifier is proportional to the hydrogen partial pressure - HCBBS Forum
85. Knowledge Review: Common Pump Failure Troubleshooting Tips - HCBBS Forum
86. Seeking help with problems in reverse osmosis systems - HCBBS Forum
87. Sign-in record post dated December 22, 2015 - HCBBS Forum
88. Which company designed the ammonia synthesis project at Jiangsu Huachang Chemical, which came online in March? - HCBBS Forum
89. Ferrous chloride is added to the effluent from domestic wastewater; the pH level is too high - HCBBS Forum
90. How to calculate the mass fraction of flue gas components - HCBBS Forum
91. Gas pipeline selection problem - HCBBS Forum
92. Current induction - HCBBS Forum
93. The procuratorate sued the environmental protection bureau for failing to effectively resolve the issues raised by the public - HCBBS Forum
94. Selection of applications for gas chromatography and liquid chromatography in petroleum product analysis - HCBBS Forum
95. I need help – can Aspen be used for the simulation of adduct crystallization? - HCBBS Forum
96. 【Daily Topic】【Electrical Edition 20151223】 - HCBBS Forum
97. True or False Questions - HCBBS Forum
98. 【Daily Question】Wastewater Knowledge - 12.29 (2 points for answering, 5 points for a correct answer) - HCBBS Forum
99. 【Daily Question】December 25, 2015: Participation +2 Wealth； +3 to 8 wealth for correct answers - HCBBS Forum
100. The pressure vessel manufacturing has defects; should the technical documents be prepared according to the boss’s instructions, or strictly in accordance with the standards? - HCBBS Forum