Pipe hole digging
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I am currently working on a lubricant pipeline with a pressure of 0.98 MPa, a temperature of 30°C, and a diameter of 73×4. It connects two devices; the fluids from these devices combine before flowing out through this pipeline. Due to layout constraints, after accounting for the size of the valves used to connect to the devices, the length of the pipeline leading to the exit point is only 160 mm. Although it is possible to create a hollow section in such a short pipeline, I’m not sure what impact this would have on the strength of the pipeline when a 73×4 pipeline is incorporated into it I would appreciate your advice
Could considering a three-way structure be an option? It would eliminate the need for holes, and the strength wouldn’t be an issue either.
It has no impact; it will only strengthen the pipe. You can simply saw the pipe and weld on an equal-diameter tee, and that’s it.
It will affect the strength, but with the pressure and medium you specified, there should be no problem. If you’re still concerned, heat treatment can also be applied at the opening.:)
If an equal-diameter tee is used, a size of 1.5D is not sufficient, which will lead to installation problems; it is therefore recommended to use an equal-diameter saddle joint instead, as this will ensure adequate strength. If it is carbon steel, heat treatment is advisable.
It’s possible, but it’s difficult to remove the impurities resulting from welding. It is recommended to use the T-joint TIG welding method, as this ensures cleanliness inside the tube. Since it is a lubrication oil pipe, maintaining internal cleanliness is a crucial aspect that must be taken into consideration during the modification process. If cleaning cannot be guaranteed, should a butt-welded flanged tee be considered to ensure internal quality? In short, internal cleaning is the key issue; if impurities get into the lubrication points, it can damage the equipment. (For reference)
Use this program to calculate it at http://bbs.hcbbs.com/thread-382120-1-1.html
No problem, the pressure and temperature are not high!
No problem; it can be made into a socket-welded elbow with a groove, and it can be welded together using butt welding after the groove is prepared. . . :lol
Based on the information you provided, this pipeline does not qualify as a pressure pipeline; it can be dug through. However, given the relatively high pressure, it is recommended to use a tee.
No problem, the strength of the pipeline will not decrease.
The pressure is 0.98 MPa and the temperature is 30°C; these values are relatively low, so there is no problem with using a tee connection for the pipes, and their strength is sufficient. TIG welding must be used as a base welding method, and it is crucial to keep the interior of the pipes clean.
Based on your pressure and pipe diameter, branch pipes can be welded without the need for reinforcement
Based on the temperature and pressure conditions you provided, there should be no problem.
You need to consider whether the temperatures of the two drums are the same, and whether they are high-temperature devices. If so, you must take into account the amount of expansion of the devices. Usually, the two devices are not connected directly by a straight pipe, as the stress would be too great.