English — Forum #337 (Page 119/163)

1. Basic Process Knowledge (Multiple Choice) 20180524 - HCBBS Forum
2. What is the fire hazard classification for general environmental protection equipment (wastewater and exhaust gas treatment systems)? - HCBBS Forum
3. Process technology control issues related to copper extraction - HCBBS Forum
4. Can CAD separate elements by color, just like layers do? ? - HCBBS Forum
5. Alkylation reactor pressure control - HCBBS Forum
6. 【HVAC Version】Daily Question 20180419 - HCBBS Forum
7. Is it feasible to directly introduce liquid ammonia into water to produce ammonia solution? - HCBBS Forum
8. catalyst - HCBBS Forum
9. Is it better to use a single pump or two pumps in series for circulating water transportation? - HCBBS Forum
10. 【HVAC Version】Daily Question 20180312 - HCBBS Forum
11. NAOH and H2S electrolysis equilibrium constant problem? - HCBBS Forum
12. With such strict controls under US standards, who exactly is benefiting from this? - HCBBS Forum
13. Problems with centrifugal pumps - HCBBS Forum
14. I need an expert to help me figure out the conversion between steam and water - HCBBS Forum
15. 【HVAC Version】Daily Question 20180226 - HCBBS Forum
16. Can the water from tank 1# be transferred to other tanks? - HCBBS Forum
17. Phase of molecular sieves - HCBBS Forum
18. Please find a literature article on the fermentation of glucose to produce methionine - HCBBS Forum
19. Knowing the backwash intensity of the air, how to calculate the diameter of the intake pipe - HCBBS Forum
20. Initial reduction temperature of nickel oxide - HCBBS Forum
21. Fundamentals of Manufacturing Processes (Multiple Choice) 20180131 - HCBBS Forum
22. Why is compensation needed for lateral displacement? - HCBBS Forum
23. I have a process-related question for everyone - HCBBS Forum
24. Process flow diagram for solid acrylic resin - HCBBS Forum
25. 【Mechanical Equipment Technology Edition】Daily Question 201806015: Refrigeration Systems — Study of Pressure-Humidity Diagrams of Refrigeration Parameters* (8) - HCBBS Forum
26. Who has the relevant specifications for insulation materials? - HCBBS Forum
27. Are organically modified zeolites used in practice? ! - HCBBS Forum
28. 【HVAC Version】Daily Question 20180205 - HCBBS Forum
29. How is Oufa Hydrocarbon Oil from Xuzhou Chineneng Environmental Protection Group? - HCBBS Forum
30. (Seeking help) How should the welding wire energy be selected? - HCBBS Forum
31. Basic Process Knowledge (Multiple Choice) 20180411 - HCBBS Forum
32. [Mechanical Equipment Technology Edition] Daily Question 20180201: Common Faults in Refrigeration Systems (8.8) - HCBBS Forum
33. Free design and calculation software for atmospheric pressure rectangular vessels (not Excel; generates Word reports) - HCBBS Forum
34. Remove the low-molecular-weight device - HCBBS Forum
35. Flue design calculation - HCBBS Forum
36. Do you know how many people held the certification as a Level 1 Registered Fire Engineer in 2018? - HCBBS Forum
37. What is the function of this device? - HCBBS Forum
38. [Mechanical Equipment Technology Edition] Daily Question 201802022: Common Faults in Refrigeration Systems (9.3) - HCBBS Forum
39. May I ask whether it is unnecessary to install a fire dike for the storage tanks in the plant area when they are located within the plant? - HCBBS Forum
40. Self-flow velocity calculation method - HCBBS Forum
41. Condenser heat control method - HCBBS Forum
42. Can feather hydrolysis concentrate be stored in tanks made of fiberglass? - HCBBS Forum
43. Seeking advice on the layout of tank areas in wineries, regarding tank groups - HCBBS Forum
44. Fundamentals of Manufacturing Processes (Multiple Choice) 20180526 - HCBBS Forum
45. Fundamentals of Manufacturing Processes (Multiple Choice) 20180430 - HCBBS Forum
46. Medium: dilute hydrochloric acid, sodium hypochlorite pipeline standards, material? - HCBBS Forum
47. I would like to ask about the tasks involved in process design in the pharmaceutical or food industry - HCBBS Forum
48. At a temperature of 260°C and with a weight of around 10 tons, how can maximum recovery of waste heat be achieved? - HCBBS Forum
49. [Mechanical Equipment Technology Edition] Daily Question 20180404: Gas delivery volume control mechanism of screw refrigeration compressors (7) - HCBBS Forum
50. Some regulations regarding pipeline layout design for reference - HCBBS Forum
51. 【HVAC Version】Daily Question 20180225 - HCBBS Forum
52. There is a fitting in the pipe axonometric view that I can’t understand. I want to know - HCBBS Forum
53. A reward of 500 wealth points is offered for an answer regarding the definition of a single-piece top-mounted ball valve! - HCBBS Forum
54. What is the purpose of a check valve on a steam pipe? - HCBBS Forum
55. The English letters for the ethylene cracking furnace - HCBBS Forum
56. Seeking expert advice: How to separate formic acid with DMF and PPM-level concentrations? - HCBBS Forum
57. Pressing the material in the reactor using compressed air (water-based) - HCBBS Forum
58. What does the gasket model 200HV mean? - HCBBS Forum
59. Must a self-acting control valve be used for the nitrogen sealing of storage tanks? - HCBBS Forum
60. 【HVAC Version】Daily Question 20180131 - HCBBS Forum
61. Why are burners mostly installed on the side of the equipment? ! - HCBBS Forum
62. 【Traffic Rules, One Question per Day】20180411--Welcome to the travel edition of \"Spring Has Arrived in Haichuan\" - HCBBS Forum
63. 【Mechanical Equipment Technology Edition】Daily Question 201803027: Gas delivery volume control mechanism of screw refrigeration compressors (1) - HCBBS Forum
64. Vapor distillation - HCBBS Forum
65. 【HVAC Version】Daily Question 20180124 - HCBBS Forum
66. 【Daily Question】【Civil Engineering Version 20180604】 - HCBBS Forum
67. pdms - HCBBS Forum
68. Regarding the layout of electric heat transfer oil furnaces. - HCBBS Forum
69. The compressor is equipped with an oil-gas separator to reduce the oil content in the exhaust gas. I would like to ask where the oil and gas in the exhaust gas come from How is the oil-gas separator connected to the compressor? ? ? I hope someone who understands can explain it, thank you - HCBBS Forum
70. Issues regarding thermal tightening and airtightness when starting up and shutting down short-cycle equipment - HCBBS Forum
71. Can the device only have a safety valve port? - HCBBS Forum
72. Can electric oil heaters be used for heating pump rooms in sewage lift stations in the Northeast region during winter? - HCBBS Forum
73. How to calculate and determine the pipe diameter for steam pipelines - HCBBS Forum
74. Are there any standards for such construction procedures? - HCBBS Forum
75. Regarding the insulation material for valves - HCBBS Forum
76. How is the ratio of hydrochloric acid to water vapor in the gas phase at room temperature for a 10% hydrochloric acid aqueous solution calculated? - HCBBS Forum
77. Simulation of phenol process flow - HCBBS Forum
78. Fundamentals of Manufacturing Processes (Multiple Choice) 20180531 - HCBBS Forum
79. Discussion on the design calculations for process insulation - HCBBS Forum
80. Basic Process Knowledge (Multiple Choice) 20180424 - HCBBS Forum
81. Determination of the flare gas emission volume from the unit - HCBBS Forum
82. Does the GB24511 plate specification require the indication of HCP? - HCBBS Forum
83. Basic Process Knowledge (Multiple Choice) 20180322 - HCBBS Forum
84. Why is the first water transfer method not correct? - HCBBS Forum
85. 【HVAC Version】Daily Question 20180607 - HCBBS Forum
86. Refrigerators improve energy savings through heat exchange - HCBBS Forum
87. Is the concentration of the gas mixture of oil, gas, and air adjustable? - HCBBS Forum
88. Fundamentals of Manufacturing Processes (Multiple Choice) 20180401 - HCBBS Forum
89. Could you help me understand what these instruments indicate? - HCBBS Forum
90. What diameter elbow should be used for shrimp elbows? Is it more cost-effective to make shrimp bends at home or to buy them ready-made? - HCBBS Forum
91. 【HVAC Version】Daily Question 20180415 - HCBBS Forum
92. Waste discharge system in refinery production units - HCBBS Forum
93. Questions about the steam heating process – seeking answers? - HCBBS Forum
94. 【HVAC Version】Daily Question 20180422 - HCBBS Forum
95. May I ask the experienced masters? - HCBBS Forum
96. The function of the main pipeline jumper - HCBBS Forum
97. Fundamentals of Manufacturing Processes (Multiple Choice) 20180509 - HCBBS Forum
98. What devices are available to automatically measure the catalyst concentration in FCC slurry in real time? - HCBBS Forum
99. 【HVAC Version】Daily Question 20180528 - HCBBS Forum
100. Vaporization of liquefied gas - HCBBS Forum