Equipment (device) – where to go? (2)

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The last post of this post was edited by Gao Da Jia Shang Bao on 2014-4-30 14:59 "I miss my family every weekend;P". This weekend coincides with the Tomb Sweeping Day holiday, which is so "cool". I would like to wish all Haiyou friends a happy weekend and happy holidays in advance. Get ready, the following is all kinds of boring chatter. Principles for the layout of equipment in the second phase (1) I will talk about the theory first, and then I will talk about it unit by unit later. If you find it annoying, just give me an X. Generally speaking, the first major principle of equipment layout is the installation aspect. Large equipment and vibration equipment must be placed in places with good geological conditions. This not only saves the owner a lot of money, but also reduces a lot of construction time and risks. Because after acquiring a piece of land, the land is very large and the underground address structure is not the same in every place. Especially in mountainous areas and Hetao areas, there are many parts of the terrain that are collapsible loess. If you put an acrylic tower here, you can, but you have to dig out the entire area where the foundation is and replace it with new soil with poor compressibility. This is a large amount of work, the amount of earthwork cannot be done when the earthwork is balanced, and the owner is not within the budget, so it will be very embarrassing. We often see the foundation of compressors and turbines settling, and complain that the foundations are not laid properly. This is not true. No one would joke about their future with such large-scale vibration equipment. The design institute was right, and the construction was no problem. This is because the geological structure must have local settlement. Uniform settlement is fine, but uneven settlement is disastrous. There are many cases of poor operation of fans and serious wear of turbine shafts. commercial breaks: “Give someone a sweet spring, and leave a sweet fragrance in your hands.”:lol:lol:lol The second major principle is that in addition to paying attention to the requirements for fire protection and explosion protection, you must also pay attention to the venues and passages required for operation, maintenance, loading, unloading, and hoisting of device rooms and equipment rooms. Under normal circumstances, everyone is very sensitive to fire and explosion protection. Generally, there will be no problems if you stick to the regulations (if you don’t understand here, you can read the first series of posts on my space about construction regulations & petrochemical regulations), but these alone are not enough. If you want to have a high-end and atmospheric layout, you must reserve the space and passages required for operation, maintenance, loading and unloading, and hoisting. To understand the maintenance method of the equipment, here are a few examples. When designing PVC, the head of one converter can be placed in the middle of four converters. If not designed this way, the head of the converter must be hoisted outside the frame, which requires crossing many pipelines. In addition, a passage for the crane needs to be left between the front converter and the backstage converter. Speaking of hoisting, there are more jokes, and it’s time to tell stories. Two days ago, an owner celebrated the success of the hoisting and sent out good news. I thought it was a big thing. It turned out to be a fixed bed of more than 100 tons. This is not a core piece of equipment. It just needs a crane to lift it through a corridor, but this corridor can only be 150 tons. The ton crane passed, and the load of the crane was more than 90%. It was indeed very difficult to hoist. Later, when I looked at the general drawing, I felt a little ashamed. Why couldn't I consider hoisting during the layout? Is it necessary to move an extra two meters to the factory? Why can't we avoid the hoisting area when selecting an on-site processing site? The on-site construction should use as much space as possible, hey! ~~The maintenance space is amazing. I won’t mention any items here. It is quite sensitive. The cleaning of a vertically suspended reactor is quite different. It requires first lifting the reactor to the rotating table, rotating it 180 degrees longitudinally, then lifting it, pulling out the core, and replacing it with another one. The casing was then cleaned, but the rotating space was occupied. Later, I had no choice but to remove two beams from the unrelated factory building next to it for each maintenance. Therefore, I had to trouble the neighbor to stop the process for cleaning. It was really great. The loss was small, but if there was a safety accident, the responsibility would be huge. I am nagging these cases just to share them with you. When setting up, you must consider the relationship between the surrounding processes, factories, and equipment, take care of each other, and make as few jokes as possible. In fact, to be honest, "it is impossible to prevent it." Finally, let me give you a schematic diagram of the maintenance space. See you next time, updated every Tuesday and Friday. ---------------------------------------I am the dividing line--------------------------------------------- Equipment - where to go? (1) http://bbs.hcbbs.com/thread-1286874-1-1.html For more exciting content, please visit my space{:1_90:}{:1_90:}{:1_90:} http://bbs.hcbbs.com/home.php?mod=space&uid=891276 I will broadcast every update to the audience. Everyone is welcome to communicate, ask questions and make suggestions.