English — Forum #723 (Page 40/642)

1. Why is there such a large difference in heat exchange efficiency between two floating coil heat exchangers of the same model? - HCBBS Forum
2. What is the difference between a safety valve and a pressure relief valve? - HCBBS Forum
3. Vortex flow meter - HCBBS Forum
4. lyricism - HCBBS Forum
5. Selection of mixed-bed regenerant and regenerant water pump? ? - HCBBS Forum
6. Tar plus alkali - HCBBS Forum
7. Which raw material would you choose - HCBBS Forum
8. Thermocouple thermometer failure - HCBBS Forum
9. Evaporation rate of quench water - HCBBS Forum
10. Is the selection of a metal rotor flowmeter related to pressure? - HCBBS Forum
11. [Forward] Moving air pollution control to the front line; clean coal utilization is in the spotlight” - HCBBS Forum
12. Seeking help with Yokogawa CentumVP - HCBBS Forum
13. :o - HCBBS Forum
14. Height of the spring at position 0 of the variable spring hanger F-type bracket - HCBBS Forum
15. Environmental Protection Daily Question (12.25) - HCBBS Forum
16. What exactly are the factors that affect the working efficiency of excavators? - HCBBS Forum
17. The 3rd one produced 3 consecutive numbers - HCBBS Forum
18. Survey on \"overwork\" among office workers: Voluntary overtime goes unrecorded, making it difficult to classify it as an occupational injury - HCBBS Forum
19. Communication - HCBBS Forum
20. Wastewater treatment plant BOD5 testing - HCBBS Forum
21. How to set the temperature for the MY-2000 chromatography column aging oven - HCBBS Forum
22. Separation efficiency of ethylene glycol and heavy alcohols? How to separate - HCBBS Forum
23. Proper selection of control valves and precautions – everyone, please continue to share your insights - HCBBS Forum
24. Power Ranking: Warriors at the top, Spurs in second place; Rockets overtake Cavaliers to make it into the top three - HCBBS Forum
25. Domestic vortex flowmeters - HCBBS Forum
26. The leisure and tourism sector is inviting you to go home and participate in the events - HCBBS Forum
27. Balance tube pressure - HCBBS Forum
28. Instructions for Sponsoring Regional Events - HCBBS Forum
29. Polypropylene horizontal tank mechanical seal - HCBBS Forum
30. Instrument calibration issues - HCBBS Forum
31. Which marine friend has books on turbine failures? ? - HCBBS Forum
32. Which is a good calculation software for long-distance pipelines? - HCBBS Forum
33. Air excess factor during furnace drying - HCBBS Forum
34. What is everyone’s favorite anime? - HCBBS Forum
35. Is the ammonia nitrogen stripping tower considered a storage tank or a reaction device? Which regulations should be followed for fire separation distances? ? - HCBBS Forum
36. A heat exchanger is heated using steam – how is the utilization rate of the steam calculated? How is water repellency calculated? - HCBBS Forum
37. Leisure - HCBBS Forum
38. Mechanical pump - HCBBS Forum
39. LPG desulfurization, deodorization - HCBBS Forum
40. What is the mechanism of catalyst-induced arsenic poisoning? - HCBBS Forum
41. Fresh flowers were given to each other! Don’t miss it if you happen to be by! - HCBBS Forum
42. [Just chatting] Can you still break eggs? - HCBBS Forum
43. 2017 Exam Schedule - HCBBS Forum
44. On energy savings with frequency converters - HCBBS Forum
45. Self-acting control valve - HCBBS Forum
46. What is the effect of adding reduced catalyst to the methanol synthesis tower? - HCBBS Forum
47. I would like to ask experts: what are the Passlane Seal Rods and tie rods in a heat exchanger? - HCBBS Forum
48. Patent technology fee, basic engineering design, technical requirements fee - HCBBS Forum
49. New type of partitioned tower - HCBBS Forum
50. Solvent deasphalting solvent ratio - HCBBS Forum
51. Terminal type - HCBBS Forum
52. What should be the flow rate for flammable liquids of categories A, B, and C, or highly oxidizing or highly corrosive fluids of categories A and B? ? - HCBBS Forum
53. What is the purpose of the small holes on the left and right sides of the pump cover of the suspended cantilever pump (IS type)? - HCBBS Forum
54. The radar level gauge provides inaccurate readings of the liquid level - HCBBS Forum
55. I’m looking for a book, “Petroleum Refining Technology and Engineering: Hydrogenation Special Issue” - HCBBS Forum
56. When will the results for the registered firefighter exam be available? - HCBBS Forum
57. Daily Water Treatment Question (12.19) - HCBBS Forum
58. Who knows the latest updates on Yingli’s silane-polysilicon production in Baoding? - HCBBS Forum
59. Test questions - HCBBS Forum
60. Operating procedures - HCBBS Forum
61. Daily Safety and Fire Protection Question (12.26) - HCBBS Forum
62. Seeking help with wastewater treatment - HCBBS Forum
63. Safety valve calculation in Aspen Plus 8.6 - HCBBS Forum
64. Problems with pressure testing vertical containers - HCBBS Forum
65. Daily Water Treatment Question (12.18) - HCBBS Forum
66. There are so many accidents - HCBBS Forum
67. Please, experts, help me out (I’ve already upgraded and it’s no longer needed; thanks) - HCBBS Forum
68. A standard has been established: the Code for Construction and Acceptance of Welded Vertical Cone-shaped Steel Vessels. Is it available for download? - HCBBS Forum
69. safety barrier - HCBBS Forum
70. How to design an explosion-proof workshop as a non-explosion-proof one? - HCBBS Forum
71. Chlorine control - HCBBS Forum
72. Production process of methyl octabromide - HCBBS Forum
73. Dalian Empire Shield Pump - HCBBS Forum
74. Cathode mesh and new separator for water electrolysis hydrogen production cells - HCBBS Forum
75. Post #1653917
76. The State Council issued the **2016 Version of the List of Approved Investment Projects - HCBBS Forum
77. Regarding the material of the O-ring - HCBBS Forum
78. Is there a standard code with full threads per ASME B18.2? - HCBBS Forum
79. Comparison of HTRI and EDR results - HCBBS Forum
80. Essential for heat exchange engineers – Download the green version of the most powerful formula calculator ever created - HCBBS Forum
81. Instrument design - HCBBS Forum
82. Screw air compression molding machine - HCBBS Forum
83. Share your experiences/incidents with technical accidents 004: The neglected bypass valve - HCBBS Forum
84. Reasons for the water pump drawing in little or no water - HCBBS Forum
85. Control of drum water quality - HCBBS Forum
86. Steam safety valve silencer - HCBBS Forum
87. What reports are required from a third-party authoritative agency for the commissioning of a boiler? - HCBBS Forum
88. “The signing ceremony for the cooperation research agreement on the “Anaerobic production of olefins and aromatics from methane” project was held at our institute (referred to as the Dahuahua Institute) - HCBBS Forum
89. Can the vent openings of flammable liquid storage tanks (such as methanol, ethanol) be connected directly to the atmosphere? ? - HCBBS Forum
90. Material balance mole calculation formula - HCBBS Forum
91. Butt-welded straight-through joint - HCBBS Forum
92. I have 12 years of experience working in a chemical engineering design firm, and I hope to develop my career in Tianjin; I seek your support! - HCBBS Forum
93. What is the difference between an overload protector and a thermal relay for circuit protection? - HCBBS Forum
94. Regarding the storage of ethylene glycol - HCBBS Forum
95. Seeking the electronic version of the Training Manual for National Pressure Pipeline Design Approval Personnel (3rd edition) - HCBBS Forum
96. Data on alkali burn treatment - HCBBS Forum
97. What is the relationship between pressure and liquid level in a circular tower? - HCBBS Forum
98. Maximum load of a single methanol distillation system - HCBBS Forum
99. The coke cake is high and the temperature in the furnace roof area is low – what’s the reason? - HCBBS Forum
100. Selection of design standards for a storage tank with a diameter of 1.6 m and a height of 5 m - HCBBS Forum