English — Forum #723 (Page 418/642)

1. The control valve amplifier makes exhaust noises frequently; I need the teacher’s help! - HCBBS Forum
2. 【Daily Question】12.9 Fill-in-the-blank: The main purpose of connecting pumps in series is ( ), and the main purpose of connecting pumps in parallel is ( ) - HCBBS Forum
3. Investment costs and equipment for sulfur processing plants~~~ Seeking advice! ! ! - HCBBS Forum
4. 【Daily Question】Question from Issue 20151209 - HCBBS Forum
5. 1\" equals millimeters - HCBBS Forum
6. Are there times when New Year’s Day doesn’t bring a holiday? - HCBBS Forum
7. Technical requirements for the acceptance of safety monitoring and early warning systems in flammable and explosive tank farms - HCBBS Forum
8. Small factories seeking sludge drying technology or equipment - HCBBS Forum
9. Bosses, are you still troubled by your company’s safety management system? - HCBBS Forum
10. Seeking help with vibration testing of a device - HCBBS Forum
11. Stainless steel heat exchangers are pickled using salt and acid - HCBBS Forum
12. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 392 - HCBBS Forum
13. Industry survey - HCBBS Forum
14. At the beginning of sulfur recovery operation - HCBBS Forum
15. Certificates related to environmental protection? Advice from a master hero - HCBBS Forum
16. Given the outlet flow rate of the pipeline, how to choose a pump? - HCBBS Forum
17. Detection methods for heat exchanger leaks - HCBBS Forum
18. For differential pressure flow meters, is it necessary to take the square root of the percentage of differential pressure (the ratio of differential pressure to total differential pressure)? - HCBBS Forum
19. Reasons for frequent damage of the 3700A card holder - HCBBS Forum
20. Technology transfer fees and investments for low-temperature methanol washing - HCBBS Forum
21. Question: Why is the COD level of the purified water in the acidic water stripping unit so high? - HCBBS Forum
22. 20151209 One question per day - HCBBS Forum
23. The on-grid electricity price will be reduced by 3% starting next year - HCBBS Forum
24. Environmental Protection Daily Question 12.7: Participate for a prize; 3 correct answers earn an additional prize - HCBBS Forum
25. How to connect a pressure gauge to a PVC pipe - HCBBS Forum
26. Are everyone resting? - HCBBS Forum
27. Why do coal chemical projects \"board first and buy tickets later\"? - HCBBS Forum
28. Are there any portable gas analysis instruments? - HCBBS Forum
29. Why are the reporting posts gone? - HCBBS Forum
30. Beikong Energy acquires 34% stake in Keqi coal-to-gas project - HCBBS Forum
31. Joint Learning*1214: +2 wealth for participation, +9 wealth for correct answers - HCBBS Forum
32. Is temperature and pressure compensation required for the volumetric flow rate of vortex flow meters? - HCBBS Forum
33. Interpretation of the Work Safety Law of the People’s Republic of China (112) - HCBBS Forum
34. Calculation of the saturated steam content in raw gas - HCBBS Forum
35. uV COD water quality analysis instrument - HCBBS Forum
36. A question about choking! ! ! - HCBBS Forum
37. Jiangsu will be the biggest victim of the anti-solar panel tariffs - HCBBS Forum
38. 【Daily Question】Question from Issue 20151211 - HCBBS Forum
39. Both Yamaku and Samson positioners are equipped with a double-acting amplifier when used with double-acting actuators - HCBBS Forum
40. Installation and calibration method for Anton Paar density meter (DPRn427 I) - HCBBS Forum
41. Which is more expensive, a pilot-operated safety valve or a spring-loaded safety valve? - HCBBS Forum
42. Will the cooling water be insufficient with this configuration? - HCBBS Forum
43. 【Daily Question】Question from 20151210 - HCBBS Forum
44. Help needed with cumene catalyst! - HCBBS Forum
45. Newbie seeking help - HCBBS Forum
46. What material is used for lining the interior of solid material silos to prevent damage from drops? - HCBBS Forum
47. Regarding the motor start/stop signals and interlock shutdown signals, why can’t they be displayed on the inverter? - HCBBS Forum
48. 【Daily Question】Question from 20151211 - HCBBS Forum
49. On the application of electrodesalination water-cutting cyclone oil removers - HCBBS Forum
50. Environmental Protection Daily Quiz 12.10: Participate for prizes; 3 correct answers and you’ll get another 3 as a reward - HCBBS Forum
51. Temporary power use safety management - HCBBS Forum
52. 【Daily Question】Question from Issue 20151214 - HCBBS Forum
53. Is there a sludge dewatering machine that can withstand pressure and has sealable inlet and outlet ports? - HCBBS Forum
54. Regarding safety engineer registration - HCBBS Forum
55. Selection of level gauges for tanks containing major hazardous materials such as liquefied petroleum gas, liquid chlorine, and liquid ammonia - HCBBS Forum
56. Regarding the passivation issue of the solvent portion - HCBBS Forum
57. Maximum noise rate Noise Velocity Limit - HCBBS Forum
58. By the way, which companies have those working in graphic design applied to? - HCBBS Forum
59. Weld joint factor? - HCBBS Forum
60. The low-temperature methanol wash lean liquid filter is switched on and off frequently, with operation times ranging from 1 hour to 30 hours. - HCBBS Forum
61. Domestically produced vortex flow meters - HCBBS Forum
62. Special thread on basic knowledge for the Chemistry and Engineering field – Discussions on key examination points in Chemistry and Engineering + Distillation + 05 + Summary of error-prone and easily confused concepts - HCBBS Forum
63. What is the relationship and difference between Aspen Plus and Aspen One? - HCBBS Forum
64. cod - HCBBS Forum
65. Regarding the grounding issue of the DC power supply in DCS or PLC systems - HCBBS Forum
66. One question per day (1209) - HCBBS Forum
67. Swiss JAQUET sensor information - HCBBS Forum
68. Polyether polyols - HCBBS Forum
69. 【Weekly Question】+9 for correct answers, +2 for participation； Close this post on Sunday - HCBBS Forum
70. Sign-in record post dated December 10, 2015 - HCBBS Forum
71. Questions regarding welding methods for special-purpose equipment - HCBBS Forum
72. 20151206 One question per day - HCBBS Forum
73. Which is better for air dust removal, solid nozzles or hollow nozzles? - HCBBS Forum
74. 【Daily Question】Question from Issue 20151209 - HCBBS Forum
75. Regarding the level of the terminal safety instrumented system - HCBBS Forum
76. Several effective methods for dealing with scale - HCBBS Forum
77. How much loss is there in converting coke oven gas into LNG? - HCBBS Forum
78. Can 316H be welded with 316L wire? - HCBBS Forum
79. 【Useful Tips】The friend circle is flooded with posts about screw compressors, but do you know how many hardware components they have and what their functions are? - HCBBS Forum
80. Chemical/ Laboratory Design Institute - HCBBS Forum
81. 【Daily Question】December 14, 2015: Type E welds (2 wealth points for replying; +3–8 additional wealth points for a correct answer) - HCBBS Forum
82. Environmental Protection Daily Quiz: December 15 – Participate for prizes; 3 correct answers and you’ll get another 3 prizes - HCBBS Forum
83. Is there any hope for my illness? - HCBBS Forum
84. Water in the crude gasoline from the absorption tower - HCBBS Forum
85. One question per day (1211) - HCBBS Forum
86. Dust explosion - HCBBS Forum
87. Discussion on smoke extractor descaling technology - HCBBS Forum
88. Solutions for the corrosion of pipe fittings caused by hydrogen sulfide in gasification - HCBBS Forum
89. Regarding the issues with gate valves, - HCBBS Forum
90. 【Daily Question】Question from Issue 20151216 - HCBBS Forum
91. Internal particle velocity distribution in GE coal-water slurry pressurized gasification - HCBBS Forum
92. ★Specialized Examination for Chemical Engineering ★ — One question per day (2015-12-15) — Points are awarded for participation - HCBBS Forum
93. Treatment of desulfurization wastewater - HCBBS Forum
94. GB50341-2014: Torque on the joint between the tank wall and bottom plate due to internal pressure - HCBBS Forum
95. Which manufacturer produces high-quality PT100 temperature probes? - HCBBS Forum
96. Control of temperature in high-salt waste treatment reactors - HCBBS Forum
97. Speed fluctuation - HCBBS Forum
98. Questions about tank farm layout in the «Code for Fire Protection Design of Petrochemical Industries»? - HCBBS Forum
99. The special module of the PLC is used to convert the analog signal from the thermoresistor into a digital signal that is then fed into the CPU. So what’s the problem? - HCBBS Forum
100. 【Daily Question】Question from Issue 20151210 - HCBBS Forum