A sentence about the manholes on the tower

The internally connected components shall be removed through the manhole.

Is there any relevant content in the standards? I don’t understand the meaning of this sentence!

Removable means it can be moved; therefore, the translation for the second floor should be adjusted to sound more appropriate. The components connected by bolts should be able to be removed through access holes.

This post was last edited by DXJ122 on 2010-8-13 22:23. Reply to 3# stronger0514: This is a consideration in device design; no specific standards are required. In short, for a tower with a diameter of 2–3 meters, a parent-and-child pipe liquid distributor is used for the return fluid (similar to the early bone-shaped antennas). Its external dimensions are roughly equal to the tower’s diameter; therefore, it has to be constructed in sections, which are then inserted through access holes. Workers inside the tower tighten the flanges to carry out the assembly. If it needs to be taken out for maintenance, one also has to enter, remove the flange, and take it out. The large towers, large reactors, and the internal components of vessels are all treated in this manner. It’s not hard to understand the meaning in English this way.

The last edit to this post was made by tigerli358_Can on 2010-8-14 at 10:41. This statement is not very precise; as an engineer, I recommend examining the relevant design carefully. In terms of design, an engineer must be extremely cautious when dealing with the design of pressure vessels. Whether under pressure or not, as long as it is a container, there are standard limitations. Since these pressure vessels can pose potential hazards to the public, strict standards must be in place to regulate them. The internal components of such towers must be designed, constructed, and inspected in strict accordance with relevant standards; it’s not the case, as this friend said, that no standards are required. For specific standards, please refer to: Ansi/Asme Standards | B30.3 - B30.4 - B30.5 - B30.9 - B30.10 - B30 and other related standards. If your customers are from the Chinese mainland, you should refer to and comply with the relevant standards of the Chinese mainland. For reference only!

Any pressure vessel is related to the safety of the public’s lives and property! Regarding the internals of towers, the Ministry of Chemical Industry established detailed ministry-approved standards as early as the 1980s. For example, there is the HG/T20652 Technical Specification for Tower Design; the petrochemical industry also has its own standards for towers: SH3098-2000 Specification for the Design of Petrochemical Towers. Whether carrying out design work or seeking consultation, it is recommended that the relevant **standards be thoroughly checked. If necessary, it is recommended that the poster follow relevant design standards such as ASME or API. This way, your hand won’t shake when you sign the P&ID! Without a standard, your hand will shake when signing!

To tigerli358_Can -- a technical discussant: You said that the internal components of such towers must be designed, constructed, and inspected in strict accordance with relevant standards; it’s not the case, as this friend claimed, that no standards are needed. For specific standards, please refer to:. . . . Let me explain—firstly, I’d like to share my thoughts on the English translation provided by the original poster; I think there shouldn’t be any problems with it ； Secondly, later on, regarding the poster’s further questions about the standards, I did express some opinions, but unexpectedly you stepped in to act as the judge ； Then please explain in detail the design standards for the mother-and-child pipe liquid distributor I mentioned, without referring to Ansi/Asme Standards, HG/T20652, or SH3098-2000 – just give it a title. At your level, this should be a piece of cake, looking forward to it.

Reply to 8# tigerli358_Can: Please provide the specific provisions stating the standards that should be followed for the mother-and-child distribution pipes I mentioned; either in Chinese or English is fine. This will help me feel more confident when signing. Thank you.

The biggest feature of a technical forum is learning from one another and complementing each other’s strengths. Because the friends here come from different fields and different backgrounds. Most friends who need help with English translation hope to resolve their issues as soon as possible. Everyone gets what they need; the referee only has standards and regulations. As the saying goes, different fields are like mountains apart; some friends have also come up with a wide variety of translations. Different design institutes have their own characteristics, and the terms used vary greatly. Therefore, I believe that experienced professionals should use concise and standard terms that are widely accepted; most importantly, they should rely on relevant standards and regulations to provide reliable information. Once there is a misunderstanding, it can lead to great regret. Please point out any errors.

It’s the official design, which also allows others to review it, offer suggestions, and even have debates. Especially a technical forum. At first, I was also troubled by the suggestions and arguments from others; for instance, I had a disagreement with a professor from the Department of Chemical Engineering at Bond University in Australia (formerly a professor at the University of Calgary) regarding the simulation calculations for a 3000 PSIG intercontinental CNG transport container, and we debated for a week. They were unwilling to give in to each other, and it was only after an expert in dynamic simulation stepped in that the issue could be resolved. ---The high-pressure property data engines used by the two are from different sources! According to the manufacturing permit from the American Bureau of Shipping, if the equipment is designed using my calculated values, it will be on the edge. Finally, I humbly accepted the advice from that expert in dynamics and corrected the calculation results; the professor also accepted my design outcomes. The insight gained is that by imitating the boss’s way of communicating and humbly accepting the doubts or even criticisms from other peers/experts, one can achieve even greater gains!