English — Forum #276 (Page 119/145)

1. Catalytic cracking unit stripping section baffle - HCBBS Forum
2. Burnthrough at the rear of the natural gas heat transfer oil boiler - HCBBS Forum
3. The distance issue between the heat transfer oil storage tank and the boiler - HCBBS Forum
4. Seamless pipes, classes A and B - HCBBS Forum
5. Issues with the inspection of boiler pressure pipes – no one is in charge of the pipeline section! - HCBBS Forum
6. Is flaw detection required for the small end of the conical head and the pipe connection? - HCBBS Forum
7. Sealing mechanism - HCBBS Forum
8. The wear-resistant tee with transition arcs experiences less wear - HCBBS Forum
9. Ask for advice on wall thickness of spherical tank - HCBBS Forum
10. Is a fluidized bed boiler better or a pulverized coal furnace better? - HCBBS Forum
11. Help design 3 sets of mixing equipment drawings for a fee - HCBBS Forum
12. Radial cracks appeared in the 31603 head during use, as shown in the picture - HCBBS Forum
13. The molten salt heating reactor experiences salt spraying - HCBBS Forum
14. Severe freezing at the liquid outlet of the liquid nitrogen storage tank - HCBBS Forum
15. Dissolved oxygen in the effluent from the deaeration tank - HCBBS Forum
16. Drain on the valve - HCBBS Forum
17. I need a set of drawings for a regular 600m3 square water tank, so that I can use them as a reference for learning. Thank you - HCBBS Forum
18. The words "generally should be adopted..." and "generally should be adopted" in the standard” - HCBBS Forum
19. Internal anti-corrosion requirements for storage tanks and relevant specifications - HCBBS Forum
20. Cylinder rolling - HCBBS Forum
21. The role of activated alumina in the field of environmental protection - HCBBS Forum
22. What type of company is developing this image-related system? - HCBBS Forum
23. Should the water coming out of the deaerator be fed into the boiler or the economizer? - HCBBS Forum
24. The 140 **professional qualification lists** published by the Ministry of Human Resources and Social Security do not include the \"Qualification Certificate for Pressure Vessel Approval Personnel\" - HCBBS Forum
25. Metal gasket for hand hole - HCBBS Forum
26. 350 degrees, 500 cubic meters atmospheric pressure storage tank – which standard should be used for design? - HCBBS Forum
27. Analysis of welds, cracks, and corrosion leakage in metal tanks and corresponding countermeasures - HCBBS Forum
28. Catalog of Measuring Instruments Subject to Mandatory Verification - HCBBS Forum
29. Seeking advice on the design and calculation of loose-flange connections - HCBBS Forum
30. China’s sealing component manufacturers do not have a very clear sense of their own positioning - HCBBS Forum
31. Question regarding the pH of steam condensate quality - HCBBS Forum
32. For a 12-mm-thick support plate to be welded to two main plates that are each 2 mm thick, is it necessary to create bevels? - HCBBS Forum
33. No more design qualifications? ? ? ? ? - HCBBS Forum
34. Cracks in the heat-affected zone of welds in cylinders made from Q345R+32168 composite sheets - HCBBS Forum
35. Selection of acid-base reactors - HCBBS Forum
36. Calculations related to heat exchangers - HCBBS Forum
37. What grade or type of TIG welding wire should be used for welding between Fe-1-1 base metals or when welding them with Fe-1-2? - HCBBS Forum
38. The problem of calculating the cylinder thickness using SW6 - HCBBS Forum
39. Can design changes to pressure vessels be used to avoid supervision and inspection in this way? - HCBBS Forum
40. Does the 16Mn weld in my case require heat treatment? - HCBBS Forum
41. What should be done if the flange calculation fails after changing the material of the stud? - HCBBS Forum
42. Design life - HCBBS Forum
43. The drawings for the heat exchanger spare parts are actually different - HCBBS Forum
44. Share a program for calculating the liquid volume in a horizontal container - HCBBS Forum
45. Calculation of the root thickness of the lugs’ fillet welds - HCBBS Forum
46. I need help determining the length-diameter ratio for a horizontal storage tank with a capacity of 40 cubic meters; the tank is 11 meters long and 6 meters wide on site - HCBBS Forum
47. Why is the chloride ion concentration in the pure water produced by the RO membrane water treatment equipment over 300? - HCBBS Forum
48. Hydrogen and ammonia leakage test methods - HCBBS Forum
49. Material substitution: SA516-70 in place of Q345R - HCBBS Forum
50. Which formula should be used to calculate the thickness of a blind plate? - HCBBS Forum
51. Issues related to acidic passivation and polishing of stainless steel mixing equipment - HCBBS Forum
52. Auditor qualifications - HCBBS Forum
53. Regarding boiler selection! - HCBBS Forum
54. Seeking help regarding the warranty document for the board material - HCBBS Forum
55. I’m a beginner when it comes to boilers; could an expert advise me on which type of boiler would be suitable? - HCBBS Forum
56. Issues with TIG welding wires for 15CrMoR - HCBBS Forum
57. Oil seal UHS25 for hydraulic cylinder - HCBBS Forum
58. Can the WNS boiler shell be numerically controlled to have holes drilled in it first and then the rings installed? - HCBBS Forum
59. Regarding the material selection for octagonal pads - HCBBS Forum
60. Manufacturing scope for Class B boilers - HCBBS Forum
61. Spring tilt problem of spring hanger and spring constant force hanger - HCBBS Forum
62. How should we understand “containers that cannot be internally inspected due to structural reasons”? - HCBBS Forum
63. Small-scale heat transfer oil heating equipment - HCBBS Forum
64. Calculation software for the expansion of melon rinds on the top of large tanks - HCBBS Forum
65. Boiler relocation - HCBBS Forum
66. I would like to ask everyone about the compactness of the foam-breaking mesh - HCBBS Forum
67. The issue of diameter changes in the inlet and outlet pipes of water pumps - HCBBS Forum
68. Questions about wet hydrogen sulfide corrosion in welding - HCBBS Forum
69. Take a look, what is this? - HCBBS Forum
70. Seeking help with water washing for dust removal - HCBBS Forum
71. Comparison of surfacing methods - HCBBS Forum
72. When forgings are used for takeover, is a negative deviation taken into account? - HCBBS Forum
73. Jacketed vessel design (inner cylinder at atmospheric pressure, jacket at 0.4 MPa positive pressure) - HCBBS Forum
74. The minimum tensile strength value under the new capacity standard is greater than 540 MPa - HCBBS Forum
75. How to seal a pneumatic stirring pressure tank - HCBBS Forum
76. Effective thickness of flat cover - HCBBS Forum
77. For sulfuric acid at over 30% concentration and a temperature of 90+ degrees, what other materials can be used for the pipelines? I’d appreciate some advice - HCBBS Forum
78. Can 98% concentrated sulfuric acid be stored in glass-lined tanks? - HCBBS Forum
79. Alkalinity and hardness of circulating water in power plants exceed standards - HCBBS Forum
80. Boiler water - HCBBS Forum
81. Does the minimum thickness of the cylinder include the shell of the kettle-type reboiler? - HCBBS Forum
82. With a constant fuel supply to the gas boiler, what effects do water inlet temperatures of 40 degrees and 60 degrees have on the boiler respectively? - HCBBS Forum
83. What impact does insufficient head of the circulation pump in a heat transfer oil boiler have on the boiler? - HCBBS Forum
84. Selection issues for the male and female surfaces of pressure vessel nozzle flanges - HCBBS Forum
85. Problems with sodium hypochlorite storage tanks and cleaning water tanks in PE-lined equipment at atmospheric pressure - HCBBS Forum
86. Applications of high-energy igniters - HCBBS Forum
87. Several public questions recently answered by the General Administration of Quality Supervision, Inspection and Quarantine - HCBBS Forum
88. The mixing tank is equipped with an automatic flushing function - HCBBS Forum
89. RWF40 does not display properly when powered on - HCBBS Forum
90. What are the standards for ASME tube box gaskets? - HCBBS Forum
91. The issue of pressing seams above and below the insulation layer - HCBBS Forum
92. How should the stress in the tubes be evaluated during the stress analysis of a steam generator? - HCBBS Forum
93. Who has the material data sheet for ER50-6 TIG welding wire? - HCBBS Forum
94. Waste heat boiler - HCBBS Forum
95. Joint reinforcement of reaction vessel openings - HCBBS Forum
96. Qualification issues for outsourcing non-primary stressed components - HCBBS Forum
97. Schematic diagram of a trickle-bed reactor - HCBBS Forum
98. I have some questions regarding the feed inlet and the distributor - HCBBS Forum
99. 【Special Materials Knowledge】Structure and sealing performance of expanded graphite composite gaskets - HCBBS Forum
100. Welding rod grade and welding rod type - HCBBS Forum