English — Forum #276 (Page 115/145)

1. Absolute elevation? - HCBBS Forum
2. sw6 calculation - HCBBS Forum
3. Jacketed temperature-controlled reactor - HCBBS Forum
4. The hydrophobic inlet valve of the hydrophobic expansion device was opened wide, causing the safety valve of the expansion device to overpressure. What is the reason for this? - HCBBS Forum
5. Regarding the issue of the center distance between heat exchange tubes - HCBBS Forum
6. How to calculate the wall thickness of a device that is conical at the bottom but square in shape? - HCBBS Forum
7. spherical tank - HCBBS Forum
8. SO neck flat welding flange and WN neck butt welding flange require welding process qualification - HCBBS Forum
9. Can the crane’s legs be raised and lowered? - HCBBS Forum
10. What is the maximum flow rate for a DN80 medium-pressure steam pipe at 1.5 MPa? - HCBBS Forum
11. How to deal with this? - HCBBS Forum
12. When calculating the tube sheet for SW6, the external pressure strain coefficient B curve exceeds the allowable limits - HCBBS Forum
13. Seeking help with boiler feed pump issues - HCBBS Forum
14. Regarding equipment settlement experiments - HCBBS Forum
15. Rules for quality supervision during the manufacturing of equipment in refining and chemical enterprises, as well as existing problems – I hope everyone will discuss these! ! ! - HCBBS Forum
16. Issues regarding butt welding of Class B joints in dissimilar steels with varying thicknesses - HCBBS Forum
17. Seeking advice from colleagues regarding pressure vessel manufacturing - HCBBS Forum
18. The data in the crane performance table do not form a right triangle - HCBBS Forum
19. Tables for calculating heat transfer due to fog droplet evaporation or related books - HCBBS Forum
20. Has anyone built a heat exchanger with scaled tubes? - HCBBS Forum
21. Equipment for producing methanol from carbon dioxide - HCBBS Forum
22. Magnetic particle testing of the reinforcement ring on the lower pipes of a heat exchanger tube sheet revealed cracks. May I ask: if all the weld metal at the cracked areas is removed, is it acceptable not to weld anything there? Also, the bolts for the signal holes have been welded in place; is it necessary to cut them free to restore the ability to move those bolts? - HCBBS Forum
23. VCAD installation failed; please give some advice - HCBBS Forum
24. Has anyone ever used a filter for landfill leachate? - HCBBS Forum
25. How to determine the ratio of steam atomization nozzles to air atomization nozzles - HCBBS Forum
26. CAD drawings of narrow-slot (two-stage slot) liquid distributor - HCBBS Forum
27. HG/T21525-2015 Construction drawings - HCBBS Forum
28. The operating temperature ranges from -10°C to 50°C; what should be the design pressure for the liquid ammonia storage tank? Is it directly 2.16 MPa? How did 2.16 come about? - HCBBS Forum
29. 09MnNiDR normalizing + tempering, impact test at -70 degrees, composition and properties of 09MnNiDR - HCBBS Forum
30. Is the forging used for Q370R 16Mn? - HCBBS Forum
31. Can parametric drawing be achieved for industrial furnaces in the refining industry? - HCBBS Forum
32. Questions regarding the welder qualification section - HCBBS Forum
33. Questions regarding the certification assessment course organized by the China Chemical Equipment Association - HCBBS Forum
34. [Help] Thermal calculation issue for flue gas heat exchange in gas boilers - HCBBS Forum
35. Regarding the issue of plugging leaks under pressure～ - HCBBS Forum
36. Please note, experts: it is an opening at the top of the tank, not an opening on the tube wall - HCBBS Forum
37. What intensity does this symbol represent? - HCBBS Forum
38. Selection of design standards - HCBBS Forum
39. Industrial valve logo - HCBBS Forum
40. Do all pressure vessels that undergo heat treatment require welding test plates? - HCBBS Forum
41. The sulfur dioxide levels in the exhaust gas from the LHS boiler are significantly above the allowed limits, and there is an analysis of the causes of corrosion - HCBBS Forum
42. Power plant boiler water wall tubes - HCBBS Forum
43. This type of gas distributor - HCBBS Forum
44. How to verify the supports of rectangular atmospheric pressure vessels - HCBBS Forum
45. Seeking advice on applying fire-resistant coating to steel structure pipe corridors in chemical enterprises - HCBBS Forum
46. Design service life of pressure vessels - HCBBS Forum
47. Where can I analyze the reasons for mixing sludge into the boiler fuel? - HCBBS Forum
48. Variable thickness of cylinders and heads, as well as calculation issues related to heads - HCBBS Forum
49. Find the combined sectional inertial moment of this diagram - HCBBS Forum
50. Differences between ER308 and THT304 wires for TIG welding of stainless steel 304 - HCBBS Forum
51. Seeking advice on the reasons for cracking of the tube sheet in a 5-ton gas steam boiler - HCBBS Forum
52. Do atmospheric oil tanks in the tank farm require a design seal? - HCBBS Forum
53. Low-temperature valve manufacturers - HCBBS Forum
54. Series expansion vessel - HCBBS Forum
55. Is the jacket divided into two sections connected by coiled tubes, and does it count as one chamber? - HCBBS Forum
56. When using beam-shell elements to model and calculate stresses, should powrgrph be set to on or off? - HCBBS Forum
57. What are the control methods for the water level protection control of hot water boilers? - HCBBS Forum
58. Must the welding joint coefficient for the shell of a fixed-tube-sheet heat exchanger always be set at 1.0? - HCBBS Forum
59. Help calculate the bolt pre-tension of the reactor - HCBBS Forum
60. Regenerator - HCBBS Forum
61. I have a question regarding operating conditions with trace amounts of hydrogen sulfide - HCBBS Forum
62. Issues with selecting a breakdown-proof (overvoltage protection) drain? - HCBBS Forum
63. Is it necessary to conduct intergranular corrosion testing on S31603 storage tanks filled with a 10%~15% NaOH solution? - HCBBS Forum
64. Contents of heat exchanger inspection and maintenance - HCBBS Forum
65. Issues with saddle data in the new support standards - HCBBS Forum
66. Annual operation and maintenance costs for a 4-ton gas boiler - HCBBS Forum
67. Post on the basic dimensions of pressure vessel sight glasses - HCBBS Forum
68. Is the difficulty of taking the G2 and G3 exams the same for someone who has never worked with boilers at all? - HCBBS Forum
69. Welded parts heat treatment - HCBBS Forum
70. What are the design differences between negative-pressure containers and positive-pressure containers? - HCBBS Forum
71. Can the corner steel at the top of a vertical storage tank be welded in small sections without being bent? - HCBBS Forum
72. Is it acceptable to use a design lifespan of 20 years for general pressure vessels? - HCBBS Forum
73. Has anyone read any books that describe the penetration depth ranges of various welding methods? If so, could you recommend a few? - HCBBS Forum
74. What are the requirements regarding material usage and container manufacturing for cold dryers using biogas as a medium? - HCBBS Forum
75. Scaling up of refining and petrochemical equipment - HCBBS Forum
76. Are there any new standards for the analytical calculation of pressure vessels? - HCBBS Forum
77. Selection of equipment lining - HCBBS Forum
78. Is a crane considered a type of effort lever? - HCBBS Forum
79. Pressure vessel audit and certification - HCBBS Forum
80. Can I modify the container label information if it is incorrect? - HCBBS Forum
81. Heat exchanger calculation - HCBBS Forum
82. Fixed-pressure vessel question bank: learn, review, advance further – let’s work together! - HCBBS Forum
83. Seeking help with laboratory heating issues! - HCBBS Forum
84. U1c25byA5a2U6KGl5by66K6h566X - HCBBS Forum
85. Selection of materials at high temperatures of 350°C - HCBBS Forum
86. Cyclone dust collectors don’t work very well - HCBBS Forum
87. Why do some factories remove the glass-lined reactors (which are special equipment) and take off their nameplates to keep them? - HCBBS Forum
88. Are the upward/downward discharge valves and the inward/outward discharge valves the same concept? - HCBBS Forum
89. Why can’t SBCAD be loaded in the PCCAD2008 Win7 system? - HCBBS Forum
90. Boiler selection - HCBBS Forum
91. Boiler water quality - HCBBS Forum
92. Working and display principle of magnetic flap level gauge/magnetic float level gauge - HCBBS Forum
93. After the issuance of Quality Inspection Office Special Circular [2017] No. 1336, how do design approvers actually proceed during the evaluation and review process? - HCBBS Forum
94. Inspection of pressure vessel dimensions - HCBBS Forum
95. Combined inertial moment of pressure vessels - HCBBS Forum
96. How many blueprints are generally required for the manufacturing equipment of pressure vessel manufacturers? - HCBBS Forum
97. Does anyone know how to weld 15CrMoR and 0Cr19Ni9? - HCBBS Forum
98. How much water can a solar water heater heat in a day - HCBBS Forum
99. Calculation method for Type B cover lugs - HCBBS Forum
100. Why are the calculation methods for the two types of swirl plates different? I hope everyone can answer this question - HCBBS Forum