English — Forum #723 (Page 553/642)

1. 【Daily Question】Question from Issue 20150821 - HCBBS Forum
2. SCR denitration, liquid ammonia vaporization - HCBBS Forum
3. Is a check valve installed at the outlet of the submersible pump? - HCBBS Forum
4. What is the purpose of the water seal at the bottom of a condensate tank? ? - HCBBS Forum
5. What are the differences between the YB88 oxygen content sensor and the ZO series? - HCBBS Forum
6. Training materials for the pre-purge system of increased-safety high-voltage motors - HCBBS Forum
7. Issues with the gauge pressure meter’s indication? ? ? Is it affected by altitude? - HCBBS Forum
8. How is stress corrosion generally defined? - HCBBS Forum
9. The impact of gasifier liquid level on ash carrying - HCBBS Forum
10. One question per week: Discuss the methods and precautions for forcing hot water circulation in converters; a reward of 5 to 15 wealth points will be given - HCBBS Forum
11. How to adjust the brightness of this device’s screen - HCBBS Forum
12. Factors affecting the service life of lifting straps - HCBBS Forum
13. What are the principles for selecting packing for a packed tower when designing it? - HCBBS Forum
14. Has anyone heard of a device called a “self-cleaning reactor”? - HCBBS Forum
15. About the interview - HCBBS Forum
16. When one party is eliminated, the others are also dismissed; how should a decision be made in such a stalemate? - HCBBS Forum
17. Seek the differences and connections between the serviceability assessment, safety assessment, and RBI of pressure vessels - HCBBS Forum
18. Chemical Engineering in Daily Life – Question 59: Do you know why you are willing to smell gasoline, kerosene, and diesel? - HCBBS Forum
19. Sealing performance of the filter - HCBBS Forum
20. Selection of the heat exchanger at the top of the vacuum tower - HCBBS Forum
21. 【Daily Question】August 29: Coking Drum in Catalytic Cracking Unit - HCBBS Forum
22. How to prevent condensable vapor from crystallizing and blocking vacuum pipes - HCBBS Forum
23. What about using an Endler furnace + high-pressure synthesis for 200,000 tons of coal-to-methanol production? - HCBBS Forum
24. Company Development _ Truths Spoken After Drinking - HCBBS Forum
25. May I ask if ammonia falls under the category of liquefied hydrocarbons? - HCBBS Forum
26. 600MW unit extraction steam - HCBBS Forum
27. The role of missed-coating inspection - HCBBS Forum
28. How to buy a gas boiler at a satisfactory price - HCBBS Forum
29. The latest BL-Y201 intelligent pressure transmitter - HCBBS Forum
30. Coal chemical industry: Profitability from coal-to-oil conversion - HCBBS Forum
31. 【Daily Question】August 23: Preheating temperature of feed oil for catalytic cracking - HCBBS Forum
32. What conditions must be considered when designing and manufacturing ammonia synthesis towers? - HCBBS Forum
33. Who has the latest national standards? - HCBBS Forum
34. Can straight-run gasoline be used as a feedstock for the hydrogenation of gasoline and diesel? - HCBBS Forum
35. Does catalytic or coker liquefied gas contain dimethyl ether? - HCBBS Forum
36. For the 70th anniversary of the victory in the War of Resistance against Japanese Aggression, and for the blue sky of mooncakes, have you stopped or restricted production? - HCBBS Forum
37. Fire-resistant coating for factory building steel structures - HCBBS Forum
38. Can 6063 or 6061 be used for the nozzles of thick-aluminum acid storage tanks? - HCBBS Forum
39. Request for LNG and pump skid floor plan drawings - HCBBS Forum
40. The installation location of the valve shall comply with - HCBBS Forum
41. 【Daily Question】Question from Issue 20150830 - HCBBS Forum
42. Under what circumstances are socketed fittings used? - HCBBS Forum
43. 【Daily Question】Chemical Engineering Principles 152: Gas Phase Mass Transfer (August 25) - HCBBS Forum
44. Laboratory alkylating reactor for sulfuric acid - HCBBS Forum
45. Is it still necessary to use a plastic demister ball to control acid mist during the electrowinning process? - HCBBS Forum
46. Are there any insulation materials with a lower thermal conductivity than rock wool that offer better insulation performance? - HCBBS Forum
47. That’s so disrespectful! ! - HCBBS Forum
48. Is asphalt paint only available in black? - HCBBS Forum
49. Overcoming the difficulties encountered during the stable start-up of absorption - HCBBS Forum
50. Help! Seeking help from experts! On the energy-saving principle of 3.5 MPa steam - HCBBS Forum
51. When the head of a high-pressure centrifugal pump is fixed, a magnetic coupler is used to adjust the flow rate range - HCBBS Forum
52. Saturated steam and pressure - HCBBS Forum
53. Regarding the maximum allowable concentration of the medium in the workshop - HCBBS Forum
54. Investment in 300,000-ton methanol plant - HCBBS Forum
55. 【Daily Question】Question from Issue 20150818 - HCBBS Forum
56. Which company has officially put the direct feed system for raw materials in the coking gasoline and diesel hydrogenation unit into use? - HCBBS Forum
57. 【Daily Question】August 11 – Regarding the operating conditions of circulating water pumps (first 80 participants get +2 points; those who answer correctly receive an additional 3–8 wealth points) - HCBBS Forum
58. I would like to know some information about the KAI membrane filters and resin towers in everyone’s factories - HCBBS Forum
59. How to determine the steam flow rate at the top of a batch reactor - HCBBS Forum
60. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 279 - HCBBS Forum
61. 【Produced in the summer】--- Thank you to the workers who unloaded coal in the raw material coal unloading area --- *anpangpang - HCBBS Forum
62. Summary of Purging for the Separation Refrigeration Position - HCBBS Forum
63. Storage tank design for discharging at high and low liquid levels - HCBBS Forum
64. Issues regarding the cost accounting of intermediate by-products in chemical plants - HCBBS Forum
65. 【Basic Knowledge of Glossary Definitions for “Polymers and Materials”-022】Glossary definitions related to polymers - HCBBS Forum
66. Looking for manufacturers of precision pressure gauges - HCBBS Forum
67. How to deal with rusted oxygen pipelines in air separation units that have been out of use for a long time? - HCBBS Forum
68. A dedicated shut-off valve is installed downstream of the throttle valve; this shut-off valve is closed during interlock operation. Is it also necessary to interlock and close the control valve as well? - HCBBS Forum
69. 200L barrel waterproof lid - HCBBS Forum
70. Weekly topic: 5 Wealth points for those who answer correctly, 2 Wealth points for participation； Question 138 - HCBBS Forum
71. Technical trends in intelligent monitoring of maintenance status to drive the intelligent transformation of machine tools - HCBBS Forum
72. How to enter calcium sulfate dihydrate in ASPEN - HCBBS Forum
73. Compressor spare parts - HCBBS Forum
74. Methods for pipeline insulation and moisture protection layers - HCBBS Forum
75. I can’t understand the answers to the exercise set in the registered Chemical Industry Association version - HCBBS Forum
76. Analysis of Key Development Trends in China’s Construction Machinery Industry - HCBBS Forum
77. How to determine the number of analog or digital signal points for various components (valves, motors, etc.)? - HCBBS Forum
78. NBT47013 Complete, Decrypted Version, Borrowed to Help Others - HCBBS Forum
79. How to draw a stress distribution diagram for horizontal containers? - HCBBS Forum
80. Do safety helmets and safety belts need to be replaced regularly? - HCBBS Forum
81. Regarding the commissioning of safety spacing for **chemical storage yards - HCBBS Forum
82. Is it necessary to time the introduction of acetylene in a chemical plant? - HCBBS Forum
83. What type of reactor is used for the debenzylization of formic acid under palladium-on-carbon catalysis? - HCBBS Forum
84. How to enter the R410A component in HYSYS - HCBBS Forum
85. What type of expansion joint should be chosen? - HCBBS Forum
86. What do the specification dimensions, assembly dimensions, and external dimensions of chemical equipment drawings refer to? - HCBBS Forum
87. Liquefied natural gas pipeline insulation - HCBBS Forum
88. Specifications prohibiting the use of plastic pipes for transporting flammable liquids - HCBBS Forum
89. 【Daily Question】Question from Issue 20150817 - HCBBS Forum
90. Electric control valve, normally open type and status indication - HCBBS Forum
91. What are the specific functions of the permanent light in a heating furnace? - HCBBS Forum
92. Which friend has worked on the design of the ring wall foundation for US standard storage tanks? - HCBBS Forum
93. Simulation with unknown components - HCBBS Forum
94. 【Daily Question】August 17, 2015 - HCBBS Forum
95. Discussion on several issues such as sulfur formation at the gas holder outlet and blockage of the rich amine liquid line in the desulfurization tower. - HCBBS Forum
96. Reasons for insufficient outlet pressure in centrifugal pumps - HCBBS Forum
97. Issues related to the calculation of spherical tanks - HCBBS Forum
98. Relevant qualifications in the field of automated control - HCBBS Forum
99. Can prolonged aeration lead to a decrease in the pH value of the biochemical tank? - HCBBS Forum
100. The box-type transformer is located about 5 meters away from the fire water tank - HCBBS Forum