English — Forum #723 (Page 537/642)

1. Valves with different connection methods on both sides - HCBBS Forum
2. What is the effect of pH in water on silicon removal by anion exchangers? - HCBBS Forum
3. Issues regarding the bearing temperature of centrifugal pumps - HCBBS Forum
4. High temperature on the installation plate of the gas steam boiler - HCBBS Forum
5. Those who think they have a good command of literature, come up with a matching couplet - HCBBS Forum
6. Does R125 form an azeotrope with HCL? - HCBBS Forum
7. I would like to ask the experts: what does 400V-2PH-3500W on the heater mean? - HCBBS Forum
8. What is membrane separation and what are its characteristics? - HCBBS Forum
9. How to interpret the boiling range - HCBBS Forum
10. What can be forced in the S7-300? - HCBBS Forum
11. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 293 - HCBBS Forum
12. Preparation of large-particle sodium sulfite - HCBBS Forum
13. Will I not be able to see the content in a moment? - HCBBS Forum
14. What types of oily wastewater generally need to be received in the underground oily wastewater tanks of the acidic water stripping unit? Where to queue? - HCBBS Forum
15. A bit of a clever activity - HCBBS Forum
16. Is there a device to remove residues at the top of the MDEA solution scrubber tower? - HCBBS Forum
17. Production Practice of Lead Oxygen-enriched Side-blown Furnace Commissioning - HCBBS Forum
18. Brief description of the working nature of bridge cranes - HCBBS Forum
19. Dust explosion prevention issues - HCBBS Forum
20. How to remove sulfate ions? - HCBBS Forum
21. 【College Activities】006+“My Four Brief Years”+The Person Who Watches the Sea - HCBBS Forum
22. Weekly topic: 5 wealth points for those who answer correctly, 2 wealth points for participation； Question 164 - HCBBS Forum
23. Which brand of toxic gas alarm that uses PID principle for measuring benzene at the ppm level is good? - HCBBS Forum
24. Usage of metal powder sintered rods - HCBBS Forum
25. Regarding the selection of level gauges - HCBBS Forum
26. I am in urgent need of the enterprise standard Q/SY JH C104.023-2014 for EPDM rubber 4045 produced by Jilin Petrochemical. Please help me out - HCBBS Forum
27. One Question per Day, September 10, 2015 - HCBBS Forum
28. Beijing Intermediate Professional Title Defense - HCBBS Forum
29. High-minerality water is neutralized by adding sodium hydroxide - HCBBS Forum
30. 【Daily Question】2015.09.09 Fault Handling (2 Wealth points for replying; +3–8 additional Wealth points for a correct answer) - HCBBS Forum
31. GC7890T single-phase chromatography - HCBBS Forum
32. What matters do safety production inspection officers need to document during inspections? - HCBBS Forum
33. Aspen for checking the saturated vapor pressure of pure solid substances - HCBBS Forum
34. I would like to ask what the investment cost is for electrostatic precipitators and bag filters used to handle 200,000 cubic meters of flue gas per hour? - HCBBS Forum
35. Vertical heat exchanger for C4 deep processing unit - HCBBS Forum
36. Measurement of coke oven regenerator temperature - HCBBS Forum
37. 【Daily Question】2015.09.11 Plugging leaks under pressure (2 wealth points for a reply; +3–8 additional wealth points if the answer is correct) - HCBBS Forum
38. Mid-Autumn Festival - HCBBS Forum
39. September 1: Boiler Foundation Questions 17 – Glossary Explanations: (A certain score will be given to the top 30) - HCBBS Forum
40. I’ve seen this gas flow unit for the first time - HCBBS Forum
41. Let’s take a look at how to choose this - HCBBS Forum
42. What are the main reasons for plants turning into coal? - HCBBS Forum
43. 【Weekly Topic】Discussion on the process flow of synthetic ammonia - HCBBS Forum
44. Recruiting talents for polysilicon production reduction - HCBBS Forum
45. 【Daily Question】Issue 20150907 Test - HCBBS Forum
46. Should an emergency shut-off valve be installed on liquid hydrocarbon spheres? - HCBBS Forum
47. Saturated vapor pressure table for benzene - HCBBS Forum
48. I’m not asking about everyone’s salaries; I’m just asking if anyone knows SASO in Saudi Arabia - HCBBS Forum
49. Accident Handling 34: What are the common faults in the positive-pressure ash removal system of circulating fluidized bed boilers? - HCBBS Forum
50. Regarding valve standards - HCBBS Forum
51. Danfoss frequency converters - HCBBS Forum
52. I request to step down as the moderator for the Process and System Design section - HCBBS Forum
53. Three tips to help you reduce engine temperature in hot summers - HCBBS Forum
54. Is there anyone familiar with the design of threaded lock-type heat exchangers? - HCBBS Forum
55. Does anyone have the procurement standards for Sinopec or CNPC? - HCBBS Forum
56. What material should be used for the wastewater discharge pipes in benzene analysis? - HCBBS Forum
57. How to identify overload conditions in crane frequency converters - HCBBS Forum
58. Chemical Engineering in Daily Life – Question 60: Why does fanning oneself make us cooler in summer? - HCBBS Forum
59. Electromagnetic flowmeter output current - HCBBS Forum
60. Removal of trace ester compounds from isocyanates - HCBBS Forum
61. Newbie’s question: In the saline pretreatment process, what consequences can occur if an excessive amount of ferric chloride is used? - HCBBS Forum
62. The role of magnesium fluoride in electrolytic aluminum production - HCBBS Forum
63. Discuss the price of air separation units again and gather all available information! - HCBBS Forum
64. Low-temperature seamless pipes for ammonia pipelines? What are the technical requirements for this, in terms of construction? - HCBBS Forum
65. Hydrogenation of light hydrocarbons recovery - HCBBS Forum
66. Can pressure vessels used domestically adopt foreign design standards? - HCBBS Forum
67. 【Daily Question No. 8】September 07, 2015: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
68. How to avoid the frequent occurrence of hazards with tower cranes - HCBBS Forum
69. Safety of liquid chlorine - HCBBS Forum
70. Issues with the connection of FIELDBUS (FOUNDATION FIELDBUS) instrument handhelds - HCBBS Forum
71. 【Serial】The Growth Story of a Chemical Engineering Designer - 52 - HCBBS Forum
72. High-pressure float - HCBBS Forum
73. Recommendations for materials resistant to high temperatures, sulfur, hydrogen sulfide, and wear - HCBBS Forum
74. AO process: What to do if high pH of 9 in the aerobic tank causes ammonia poisoning? - HCBBS Forum
75. I finally graduated from elementary school! - HCBBS Forum
76. What are the advantages and disadvantages of mechanically stirred clarifiers? - HCBBS Forum
77. 【Daily Question】September 7: When all the outlet valves are closed, the flow rate of the centrifugal pump is at its minimum; what is the head under such conditions? - HCBBS Forum
78. Is it useful to learn English by watching American TV shows? - HCBBS Forum
79. Head forming temperature - HCBBS Forum
80. Is the centrifugal compressor casing drain tank in use during normal production? - HCBBS Forum
81. Seek help - HCBBS Forum
82. What are the chemical reactions that occur during the combustion of gas in a heating furnace? - HCBBS Forum
83. What are the causes of plate leakage? - HCBBS Forum
84. What are the responsibilities of safety management personnel in production and business operations units? - HCBBS Forum
85. With three days off, shouldn’t Little Wolf have a feast of delicious food? - HCBBS Forum
86. Will 3.8 MPa deoxygenated water convert itself into steam after cooling the gas in the shift humidifier? - HCBBS Forum
87. I want to return to my hometown in Tianjin. I have over 20 years of experience in hydrogen processing – is there any interest? - HCBBS Forum
88. What environmental pollution issues exist in crane cabriages? - HCBBS Forum
89. Problems with balance pipes in multi-stage centrifugal pumps - HCBBS Forum
90. Requirements for nitrogen dew point - HCBBS Forum
91. Classic couple dialogue, haha - HCBBS Forum
92. Standards for mercury content in petroleum products - HCBBS Forum
93. Questions from Issue 20150907 - HCBBS Forum
94. Normal and reduced pressure operation procedures - HCBBS Forum
95. Should the nitrogen seal pressure at the packing of a reciprocating compressor be higher or lower than that at the packing of the intermediate stage? - HCBBS Forum
96. One just can’t manage their own children properly - HCBBS Forum
97. 【Daily Question】Question from Issue 20150902 - HCBBS Forum
98. Issues related to blast resistance design in control rooms of the petrochemical industry - HCBBS Forum
99. Spending money recklessly after becoming stable – everyone, please give your support - HCBBS Forum
100. safety valve - HCBBS Forum