English — Forum #337 (Page 118/163)

1. Are there any forum members familiar with the treatment processes for phosphorus-containing wastewater? - HCBBS Forum
2. What is the corrosivity of a 1% sodium hydroxide solution? - HCBBS Forum
3. Regarding the setup of the return pipeline for shielded pumps - HCBBS Forum
4. Gentlemen, should liquefied hydrocarbon pumps be placed in the pump house or near the storage tanks? - HCBBS Forum
5. Chokepoint method - HCBBS Forum
6. Fundamentals of Manufacturing Processes (Multiple Choice) 20180606 - HCBBS Forum
7. 2\" TUBE pipe - HCBBS Forum
8. Dear sea friends, I want to obtain a certificate to increase my income. I’m not sure which one would be the best choice; do you have any suggestions? - HCBBS Forum
9. Long-distance transportation of ammonia water and liquid ammonia - HCBBS Forum
10. 【HVAC Version】Daily Question 20180324 - HCBBS Forum
11. Which expert has high-resolution flowcharts of common devices? - HCBBS Forum
12. Problems with the calculation method for pipe insulation thickness - HCBBS Forum
13. How to calculate the gas consumption for control valves - HCBBS Forum
14. What are the diameters of the main and branch ducts for the fan? ? - HCBBS Forum
15. Elevations in the equipment layout diagram - HCBBS Forum
16. Liquid level safety class of the torch separator tank - HCBBS Forum
17. How are pipe supports for plastic pipes made? Can it be placed directly on the steel beam? ? - HCBBS Forum
18. Has the SIL assessment been conducted for the device you are working on or that falls under your responsibility? - HCBBS Forum
19. [Mechanical Equipment Technology Edition] Daily Question 201804017 – Moderator’s Message - HCBBS Forum
20. We want to set up an analysis and testing laboratory in Workshop Class A now; I’m not sure if that’s possible - HCBBS Forum
21. Fundamentals of Processing Technology (Multiple Choice) 20180512 - HCBBS Forum
22. Safety and fire prevention distances for the layout of circulating water tanks in the general plan of chemical enterprises - HCBBS Forum
23. For the analysis of the pump outlet conditions, see the figure - HCBBS Forum
24. Issues related to insulation, measurement, and pricing of industrial pipelines - HCBBS Forum
25. Basic Process Knowledge (Multiple Choice) 20180528 - HCBBS Forum
26. Is it necessary to have anti-static flooring in hydrogen production facilities, with special layers added? - HCBBS Forum
27. Daily Practice – Practicing the “Jiucheng Palace” style - HCBBS Forum
28. What distance is required between the compressor and the painting booth to meet safety requirements? - HCBBS Forum
29. 【Mechanical Equipment Technology Edition】Daily Question 201804014: Common Faults of Screw Refrigeration Compressors (3) - HCBBS Forum
30. Solvent regeneration - HCBBS Forum
31. Hydrogenation reactor types for hydrogen peroxide - HCBBS Forum
32. Atmospheric pressure vessel, design pressure of 0.35 MPa – source - HCBBS Forum
33. 【HVAC Version】Daily Question 20180516 - HCBBS Forum
34. Specifications for aluminum silicate cotton - HCBBS Forum
35. Issues with the length of steam tracing pipelines? - HCBBS Forum
36. Cooling design for a reactor with coils - HCBBS Forum
37. 【HVAC Version】Daily Question 20180326 - HCBBS Forum
38. Seek help with the conversion of sulfuric acid density - HCBBS Forum
39. For the unloading of Class A liquids and the transfer pump house, can a semi-underground pump house be used? - HCBBS Forum
40. Boiler water - HCBBS Forum
41. Fundamentals of Manufacturing Processes (Multiple Choice) 20180507 - HCBBS Forum
42. Polymerization of dicyclopentadiene - HCBBS Forum
43. When saturated steam at 0.8 MPa is reduced to 0.1 MPa and then sent to the heat exchanger, is a temperature regulator needed? - HCBBS Forum
44. 【Mechanical Equipment Technology Edition】Daily Question 20180301 – Message from the moderator (prizes for participation) - HCBBS Forum
45. How long does it take for porous silica gel desiccant to become ineffective at 95% humidity? - HCBBS Forum
46. How to collect condensate from wet acetylene pipelines - HCBBS Forum
47. Have you used near-infrared detection? Request legend - HCBBS Forum
48. Seeking help regarding the selection of plates for plate-and-shell heat exchangers - HCBBS Forum
49. 【HVAC Version】Daily Question 20180321 - HCBBS Forum
50. What pump should be used for this operating condition? - HCBBS Forum
51. What is the surplus capacity of a compressor? - HCBBS Forum
52. Is the energy consumption per unit of a device higher the smaller its size? - HCBBS Forum
53. Under what circumstances is the seal opened and closed? How to use it? - HCBBS Forum
54. Basic Process Knowledge (Multiple Choice) 20180513 - HCBBS Forum
55. [Mechanical Equipment Technology Edition] Daily Question 201806013: Refrigeration Systems – Refrigeration Parameters (6) - HCBBS Forum
56. In HG-T20570.15-95 regarding the installation of pipeline flow-limiting orifice plates, there is a question regarding the unit for medium viscosity on page 450 - HCBBS Forum
57. Basic Process Knowledge (Multiple Choice) 20180616 - HCBBS Forum
58. 【HVAC Version】Daily Question 20180524 - HCBBS Forum
59. Regarding the wall thickness of heat exchange tubes - HCBBS Forum
60. Does the steam pipeline brought in by the park require a steam drum to be installed within one’s own factory premises? - HCBBS Forum
61. Ethanol proportioning system - HCBBS Forum
62. 【HVAC Version】Daily Question 20180425 - HCBBS Forum
63. 【Daily Question】Pump Equipment Technical Exchange Edition 20180209 - HCBBS Forum
64. Stamping forming process for stainless steel products - HCBBS Forum
65. [Mechanical Equipment Technology Edition] Daily Question 201805004: Common Faults of Screw Refrigeration Compressors (7) - HCBBS Forum
66. Selection between natural reflux and forced reflux - HCBBS Forum
67. Why does the specific methanol consumption decrease on the same day after the raw material methanol is unloaded? - HCBBS Forum
68. 【HVAC Version】Daily Question 20180429 - HCBBS Forum
69. What are the advantages of installing a flow orifice valve on the pump’s minimum return line? - HCBBS Forum
70. Welding method - HCBBS Forum
71. Is the drawing of the sectional view correct? - HCBBS Forum
72. I would like to ask: what is the approximate annual cost of catalysts and chemicals for a PX plant with an annual production capacity of 1 million tons? - HCBBS Forum
73. Production of MMA via two-step oxidation of isobutylene - HCBBS Forum
74. Issues regarding the decolorization of recycled base oil and black diesel. - HCBBS Forum
75. 【Mechanical Equipment Technology Edition】Daily Question 201801027: Common Faults in Refrigeration Systems (8.4) - HCBBS Forum
76. 【HVAC Version】Daily Question 20180610 - HCBBS Forum
77. High-acid, high-sulfur material selection; corrosion margin - HCBBS Forum
78. Prevent accidental opening of the valve - HCBBS Forum
79. Currently, coal chemical projects are very popular; which ones offer high profits and good prospects? - HCBBS Forum
80. 【HVAC Version】Daily Question 20180421 - HCBBS Forum
81. A Brief Discussion on Mesophase Pitch - HCBBS Forum
82. Are there any standard requirements for the thickness of each coat and the total thickness in the glass drying and anti-corrosion process involving three coats of primer and five coats of topcoat? ? - HCBBS Forum
83. Basic Process Knowledge (Multiple Choice) 20180328 - HCBBS Forum
84. Fundamentals of Manufacturing Processes (Multiple Choice) 20180402 - HCBBS Forum
85. What are the standards for equipment with graphite lining and glass-lined lining, respectively? ? - HCBBS Forum
86. The meaning of the residual curve - HCBBS Forum
87. How does chloride ion corrosion in concrete tanks affect cement or lime? - HCBBS Forum
88. According to Code for Building Design 3.7.2, the number of safety exits must be determined through calculation. How is this calculation carried out? ? - HCBBS Forum
89. Problem with discharging clumped solids - HCBBS Forum
90. PID diagram - HCBBS Forum
91. Can microreactors and tubular reactors be used in pesticide synthesis? - HCBBS Forum
92. Fundamentals of Manufacturing Processes (Multiple Choice) 20180316 - HCBBS Forum
93. Fundamentals of Processing Technology (Multiple Choice) 20180420 - HCBBS Forum
94. How is the discharge volume of a safety valve determined under the following conditions - HCBBS Forum
95. As the title suggests, is there a large amount of heat released when 96% NaOH solid caustic soda is mixed with 32% liquid caustic soda to produce 48% liquid caustic soda? - HCBBS Forum
96. 【Mechanical Equipment Technology Edition】Daily Question 201804010: Important Case Analysis of Refrigeration Units - HCBBS Forum
97. Can graphite withstand about 3% hydrobromic acid? (At temperatures ranging from room temperature to -160 degrees Celsius.) The binder within graphite can... - HCBBS Forum
98. Basic Process Knowledge (Multiple Choice) 20180315 - HCBBS Forum
99. What is the Henry’s coefficient E of dimethyl ether in methanol? - HCBBS Forum
100. Can PP, PE, and PVC plastic storage tanks withstand benzene? ? Room temperature - HCBBS Forum