English — Forum #336 (Page 17/51)

1. Guys, what does intrinsically safe design, or intrinsic safety, encompass? - HCBBS Forum
2. Can the water bath heating method inside the jacket still be used? - HCBBS Forum
3. How should the design temperature of the heat-traced pipeline be determined? - HCBBS Forum
4. Is the operating value of the emergency shut-off valve lower than the setting value of the safety valve? - HCBBS Forum
5. Operating temperature of Q235B steel plate pipes - HCBBS Forum
6. The advanced control project for the calcined light ash treatment unit, undertaken by Zhongkong Technology, was successfully completed and accepted - HCBBS Forum
7. The specific alloy content ranges for low-alloy steel, medium-alloy steel, and high-alloy steel are defined by which standard. - HCBBS Forum
8. Those troubles with the design institute - HCBBS Forum
9. Recommended engineering design company for pilot-scale projects: Process similar to the acidolysis of cellulose to produce microcrystalline cellulose - HCBBS Forum
10. What is this equipment? It’s being installed in a new chemical plant - HCBBS Forum
11. Which brother has an electronic version of the \"Selection Manual for Lifting and Transportation Machinery Products\"? - HCBBS Forum
12. Specifications for the selection of insulation materials and their thicknesses for equipment and pipelines - HCBBS Forum
13. Calculation - HCBBS Forum
14. Experts, are non-carbon-based antistatic paints suitable for benzene or styrene media? Thank you very much - HCBBS Forum
15. Can areas for Category A and Category B items be set up in the central laboratory? How large is the reserve? - HCBBS Forum
16. Process Safety in Chemical Engineering (Zhao Jinsong) - HCBBS Forum
17. Seeking to purchase p-toluenesulfonic acid process packages. Contact number: 18909560922; same number on WeChat. Engineer Zhang. - HCBBS Forum
18. Material selection for coke oven gas - HCBBS Forum
19. What is the discharge volume when a stand-alone control valve fails? - HCBBS Forum
20. Handbook of Thermochchemical Data for Pure Substances - Share· - HCBBS Forum
21. Middle school, high school, and college chemistry! ! - HCBBS Forum
22. Regarding oil leakage from pump seals, it seems that the oil ends up in the gutters and then in the sewage lines. However, the presence of oil in those gutters does not meet environmental standards. How do you guys handle this issue in your installations? Are there any good methods? - HCBBS Forum
23. What does a liquefied hydrocarbon storage coefficient of 0.9 mean? - HCBBS Forum
24. Regulating valve control of process flow diagram - HCBBS Forum
25. Highly toxic substance storage tanks require a separate tank farm – which regulation does this stipulate? - HCBBS Forum
26. Regarding the production of hard carbon - HCBBS Forum
27. A problem in chemical thermodynamics - HCBBS Forum
28. Regarding how to determine the shaft power for power calculation in the process package - HCBBS Forum
29. The issue of operational flexibility in device design - HCBBS Forum
30. Haichuan user group issues - HCBBS Forum
31. Regarding control room design - HCBBS Forum
32. Are there any friends who work in seawater desalination technology? ? ? - HCBBS Forum
33. One in use and one standby for the exhaust gas absorption tower circulation pump - HCBBS Forum
34. Can single-sided welding with double-sided formation be used for the inward extension of the takeover? - HCBBS Forum
35. Who is responsible for designing fire protection facilities? - HCBBS Forum
36. What is the role of the tube exchange in creating holes in the partition slots? - HCBBS Forum
37. In HG20519, regarding the assignment of device identifiers, how are other machinery items distinguished from other devices? - HCBBS Forum
38. Can the pipe ends of a pipe fitting tee be directly welded to flanges and valves? - HCBBS Forum
39. Regarding the test results of the F113 reactor, how should the raw material ratios be adjusted? - HCBBS Forum
40. PFA pipe standards - HCBBS Forum
41. Free explanation of the screw compressor process calculation sheet - HCBBS Forum
42. Can a loose-flange only be connected to another loose-flange? - HCBBS Forum
43. This document has been detected by the system program as potentially controversial, and external downloading is temporarily prohibited； - HCBBS Forum
44. Sulfur recovery, flue gas combustion - HCBBS Forum
45. Dalian Institute of Chemical Physics is recruiting R&D personnel for process design and process simulation - HCBBS Forum
46. **High-tower granulation nozzle - HCBBS Forum
47. Minimum operating temperature for flange standards of the Ministry of Chemical Industry - HCBBS Forum
48. Venturi scrubber diffusion section - HCBBS Forum
49. How do you calculate pipeline flow? - HCBBS Forum
50. How is it determined whether a new project is a chemical industry project? - HCBBS Forum
51. Piping issues - HCBBS Forum
52. 2 - HCBBS Forum
53. Vaporization process of liquid chlorine storage tanks - HCBBS Forum
54. 【Haichuan Equipment Guessing Game】Could it be that valves also need to have oil added regularly? - HCBBS Forum
55. There is a large amount of bubbling inside the sight glass of the overhead product line of the vacuum distillation tower - HCBBS Forum
56. Seeking guidance on the graduation project on isopropanol purification - HCBBS Forum
57. How to determine the diameter of the condensate outlet pipe in a heat exchanger - HCBBS Forum
58. Is it assumed by default that there are no safety measures in the preliminary HAZOP for chemical process design? - HCBBS Forum
59. What are the design documents for the instrument major? - HCBBS Forum
60. Specifications related to the special chapter on occupational health - HCBBS Forum
61. Pressure Pipeline Design and Engineering Examples (3rd Edition) by Song Kekē - HCBBS Forum
62. Completed - HCBBS Forum
63. How is the discharge volume of the safety valve calculated in the case of a fire in the shell side of a steam heater? - HCBBS Forum
64. Explosion protection rating - HCBBS Forum
65. If the valves upstream and downstream of the steam trap are fully open, will the circulating water flow through the steam trap when it is turned on? - HCBBS Forum
66. How to deal with salt spray during the three-stage centrifugal filtration and bagging process? - HCBBS Forum
67. What type of check valve is used on the riser? - HCBBS Forum
68. Seek Sinopec’s \"Technical Specifications for Hydrogen Purification Units and Hydrogen Supply Centers in Petrochemical Enterprises\" (Q/SH0833-2022) - HCBBS Forum
69. Corrosion data for wet vinyl chloride - HCBBS Forum
70. Why is mechanical processing preferred for preparing grooves in materials with high tensile strength? - HCBBS Forum
71. Sequential issues with manual valves and shut-off valves - HCBBS Forum
72. What documents are needed to prepare for putting a chemical plant into production after its construction is completed? - HCBBS Forum
73. Why are check valves installed at the sampling points? - HCBBS Forum
74. Administrative Measures for the Allocation and Use of Funds for Enterprise Work Safety, Cai Zi [2022] No. 136 - HCBBS Forum
75. 【Haichuan Project Updates】Public announcement on the environmental impact assessment for the capacity expansion project of Yantai Wanhua’s battery-grade sulfate production facility - HCBBS Forum
76. Guidelines for the Automated Application of Safety in Chemical Process Engineering.pdf - HCBBS Forum
77. A buffer tank should be installed before the exhaust gas enters the incinerator to control its concentration and flow rate. How is this done? - HCBBS Forum
78. Aspenplus - HCBBS Forum
79. May I ask: where can I buy the printed versions of Appendix HG 20559 and HG 20570? - HCBBS Forum
80. Why is the pressure drop of gases so small, while that of liquids is so large? - HCBBS Forum
81. What is the difference between multi-level equipment platforms and multi-story factory buildings in steel structure factories? - HCBBS Forum
82. Filter - HCBBS Forum
83. Does a heat exchanger with a tube side volume of 0.2 m3, a shell side volume of 0.49 m3, and an operating pressure of 0.3 fall under the category of pressure vessels? - HCBBS Forum
84. Problem of excessive heavy components at the top of the distillation column - HCBBS Forum
85. Design calculation of hydrofluoric acid scrubber tower - HCBBS Forum
86. The design pressure of the boiler is 4.0 MPa(G); what are the design standards for the boiler room? - HCBBS Forum
87. Explanation on the use of the control valve Cv value calculation table - HCBBS Forum
88. Heat transfer variations in chemical process pipelines of different cross-sections - HCBBS Forum
89. What does pressure difference refer to in the calculation formula for heat exchanger tube rupture according to HG20570.2-1995? - HCBBS Forum
90. The spacing issue between intermediate tanks and corresponding pumps in petrochemical enterprises - HCBBS Forum
91. Safety instrument system for toxic gases - HCBBS Forum
92. Regarding whether to install flammable or toxic gas detection alarms in the paint storage room - HCBBS Forum
93. Should professional-grade fully threaded studs be used for both toxic and flammable media? - HCBBS Forum
94. Questions about dual power supply of fire pump - HCBBS Forum
95. Design of the outlet piping for the hydrogen-containing reactor in the product system - HCBBS Forum
96. It seems that the section on heating furnaces is not included in the ProII and HTRI training materials - HCBBS Forum
97. Those things that leave design institutes at a loss – Chemical Weekly, Issue 44 - HCBBS Forum
98. The official website of LPEC at Luoyang Design Institute won’t open – does anyone know why? - HCBBS Forum
99. Regarding the design of cut-off valves - HCBBS Forum
100. Pipeline cathodic protection - HCBBS Forum