English — Forum #337 (Page 76/163)

1. I would like to install a small hydrogen peroxide purification system with a capacity of 1.5 m3/h (for removing inorganic impurities). Is it possible to place this in this area? - HCBBS Forum
2. Can the legs be placed like in the second image? - HCBBS Forum
3. Requirements for the dikes surrounding acid and alkali tank areas - HCBBS Forum
4. How can the thermal engineering field in petrochemical design institutes develop? After working there for a few years, is it possible to switch to work at power design institutes or municipal design institutes? Are there any senior thermal engineers? - HCBBS Forum
5. Structural foundation design - HCBBS Forum
6. A discussion on a unit of heat capacity - HCBBS Forum
7. Ethyl acetate catalyst: a substitute for concentrated sulfuric acid - HCBBS Forum
8. Issues regarding pipeline insulation in thermal power plants - HCBBS Forum
9. Demand for methane chloride process - HCBBS Forum
10. How is static electricity discharged from equipment after lining it with plastic? Which field of expertise deals with static electricity discharge? - HCBBS Forum
11. Let’s analyze the manufacturing process together - HCBBS Forum
12. Is there automatic temperature and pressure reduction control on the steam pipeline, and is there also an automatic steam flow regulation circuit? The regulation from these two systems is unstable... - HCBBS Forum
13. Is concentrated sulfuric acid classified as extremely hazardous according to relevant standards? ? - HCBBS Forum
14. Seeking help with chemical processing techniques - HCBBS Forum
15. Differences between sludge discharge hopper, hydrocyclone, and sedimentation tank - HCBBS Forum
16. Help: As shown in the picture, the gland of the filter bag in the LLDPE plant tends to loosen and fall off – how can this be fixed? - HCBBS Forum
17. What are the starting and ending points for the fire separation distance of compressors? - HCBBS Forum
18. Regarding Article 7.2.15 of the Petrochemical Code GB50160 - HCBBS Forum
19. Elevation of road interfaces around the main plant - HCBBS Forum
20. Anti-static triangle belt sign - HCBBS Forum
21. Current domestic production capacity of caprolactam - HCBBS Forum
22. I need to create 3D models, but not in the field of mechanics. Is SolidWorks better or Inventor? - HCBBS Forum
23. What is the difference between heating the jacket of a reactor with heat transfer oil and with steam? - HCBBS Forum
24. Excessive pipeline pressure in the raw material tank area during summer - HCBBS Forum
25. What are the vaporization rate, as well as the volumetric and mass flow rates of gas generated by this storage tank? - HCBBS Forum
26. How to take samples from an enamel stirred tank? - HCBBS Forum
27. Design issues for safety facilities in Class A large tanks - HCBBS Forum
28. Question: How are the “three types of agents” classified in refining enterprises? - HCBBS Forum
29. What are the reasons for excessive current in the motor and heating of the bearing after the pump starts? - HCBBS Forum
30. Utilities - HCBBS Forum
31. I would like to ask the experienced colleagues: what types of professional drawings are required for the as-built drawings of fire protection inspections for chemical processing plants? - HCBBS Forum
32. [Daily Question] Basic Process Knowledge (True/False) 20190712 - HCBBS Forum
33. Refrigerant selection - HCBBS Forum
34. Material feeding issue - HCBBS Forum
35. The inertia that causes deceleration in the reducer - HCBBS Forum
36. [Daily Question] Basic Process Knowledge (True/False Questions) 20190603 - HCBBS Forum
37. Requirements for the temperature of benzene storage tanks - HCBBS Forum
38. Remove the formaldehyde odor from aqueous solutions - HCBBS Forum
39. Jacket end plate thickness - HCBBS Forum
40. The pharmaceutical intermediates we produce are all manufactured using toxic and hazardous materials such as toluene, xylene, methanol, and ethanol - HCBBS Forum
41. Solve - HCBBS Forum
42. What to do if trivalent iron is adsorbed on the filter element - HCBBS Forum
43. I heard today that one will need a BIM engineer certificate in the future. What does BIM entail? Is the future a trend? - HCBBS Forum
44. Which is better for combustible liquid storage tanks: steel lined with plastic or steel lined with enamel? Which one generates and dissipates static electricity more easily? - HCBBS Forum
45. Do concentrated sulfuric acid storage and preparation need to be separated? - HCBBS Forum
46. Advantages and disadvantages of mixed methods for large and medium-sized storage tanks - HCBBS Forum
47. Calculate the proportion of steam from the plant facility in the total energy consumed, and understand the calculation method - HCBBS Forum
48. Are there non-return valves on the inlet and outlet of the combined fuel tank? - HCBBS Forum
49. What are the methods to address the low fineness resulting from high hardness of refined coal? - HCBBS Forum
50. May I ask what fire hazard category an ozone generator using pure oxygen as a source falls into, and is explosion protection required? - HCBBS Forum
51. Looking for recommended domestic companies that are good at the design, processing, and manufacturing of tubular reactors - HCBBS Forum
52. When choosing a silicon-calcium manufacturer, be sure not to forget these points! - HCBBS Forum
53. How to control the reaction conditions when reacting ammonium carbonate with lithium sulfate to produce lithium carbonate - HCBBS Forum
54. How should the vapor equilibrium tube be installed? - HCBBS Forum
55. Construction of an experimental setup for the adsorption and desorption of VOC gases using a rotating wheel - HCBBS Forum
56. I’m completely confused about the ventilation requirements for Class A warehouses. - HCBBS Forum
57. Acidic waste liquid crystallization process - HCBBS Forum
58. Flasher - HCBBS Forum
59. Can distribution cabinets be installed in Class C factories? The type without a distribution room? - HCBBS Forum
60. How to calculate gravity flow at atmospheric pressure? Thank you! - HCBBS Forum
61. Can a semi-frozen tank for liquefied hydrocarbons use top feed (spray)? - HCBBS Forum
62. Formulas for calculating pipe flow velocity - HCBBS Forum
63. Management of gas supply - HCBBS Forum
64. How are the pressure before and after the control valve determined? Is it when the valve is open or when it is closed? - HCBBS Forum
65. Whether the selection of a steam trap affects the temperature of the reactor jacket - HCBBS Forum
66. During the first startup of a natural gas processing plant, how is the heat transfer oil heated? - HCBBS Forum
67. [Daily Question] Basic Process Knowledge (True/False Questions) 20190905 - HCBBS Forum
68. How to remove water in the first step from a 90% water-containing three-component azeotrope - HCBBS Forum
69. I would like to know the chemical substances corresponding to English abbreviations - HCBBS Forum
70. Flammable and explosive chemicals in the chemical industry - HCBBS Forum
71. MVR compressor - HCBBS Forum
72. Does the hazardous waste disposal project fall under the category of chemical industry projects? - HCBBS Forum
73. Do you have detailed drawings on the specific methods for using fiberglass-reinforced plastic for corrosion protection in water tanks? ? - HCBBS Forum
74. Need help with pump flow rate and head issues? - HCBBS Forum
75. After filtration, the pump is used to lift the liquid; an intermediate buffer tank is then needed to adjust the acidity, after which the liquid must be lifted on to the subsequent processing steps - HCBBS Forum
76. Printing errors in the 2018 version of the petrochemical regulations: 2.0.19/ 6.4.2(6). Please pay attention to comparing the old and new regulations! - HCBBS Forum
77. Can pipe axonometric drawings/piping diagrams be drawn directly using CAD without software? - HCBBS Forum
78. Does emulsion polymerization fall under the category of hazardous chemical processes that are subject to strict regulation? - HCBBS Forum
79. Calculation of the liquid level in spherical tanks - HCBBS Forum
80. Is it necessary to take anti-static measures when centrifuging water-containing flammable organic solvents? - HCBBS Forum
81. What standards are used for the acceptance of pilot-scale plants? - HCBBS Forum
82. PID instrument control system - HCBBS Forum
83. Purpose of pump outlet pressure interlock - HCBBS Forum
84. How is it that warehouse ventilation doesn’t help reduce temperature? - HCBBS Forum
85. I don’t have enough permissions. Could you help me download it? Thank you - HCBBS Forum
86. How should the resistance coefficient or equivalent length of expansion joints be determined when calculating hydraulics? - HCBBS Forum
87. What is the reason why the heat-affected zone of stainless steel welded pipes turns black after pickling? - HCBBS Forum
88. For steam pressure reduction, should I choose a “pressure reducing valve” or a “temperature and pressure reducing valve”? - HCBBS Forum
89. May I use galvanized steel pipes for cooling circulating water and chilled water? Is it useful? What material are you using? - HCBBS Forum
90. The inlet temperature of the circulating water is higher than the ambient air temperature in spring, autumn, and winter – how can it then serve a cooling purpose? - HCBBS Forum
91. 【Haichuan Institution Establishment Review Series Discussion】Job Responsibilities of Professionals in Design Institutions - HCBBS Forum
92. Will the non-condensable gases in the steam definitely be discharged from the higher points? - HCBBS Forum
93. Are there any domestic manufacturers of large-scale mixers with high quality? - HCBBS Forum
94. Floor plan - HCBBS Forum
95. Pressure difference between the high-pressure and low-pressure sides in the formula for calculating the leakage rate when the heat exchange tube ruptures - HCBBS Forum
96. [Daily Question] Basic Process Knowledge (True/False Questions) 20190726 - HCBBS Forum
97. Comparison of chimney draft calculation formulas in various reference materials - HCBBS Forum
98. Regarding the superheated water process - HCBBS Forum
99. Are there any specific requirements regarding the length to which the outlet on the device extends, depending on the diameter? - HCBBS Forum
100. May I ask that the horizontal distance from the foundation line inside the fire dike to the outer wall of the vertical storage tank should not be less than half of the height of the tank wall; the outer wall of the tank is merely... - HCBBS Forum