What should be considered when selecting outdoor steam pipeline double-rod type compensators and axial type compensators?

Reply to 1# flybear556 and go to the stress area.

Thank you for the reminder; I’ll send it again from the stress area.

Reply to 1# flybear556: The considerations for the design and installation of thermal pipeline compensators (expansion joints) are as follows: First, it is necessary to select the appropriate compensator (specification and model) based on parameters such as steam quality (pressure level, temperature), pipe diameter, and installation method (pipeline tray, trench, direct burial, etc.). Note: The design pressure of the compensator should be one pressure rating higher than the actual operating pressure. II. Calculate the total compensation length based on parameters such as steam quality (pressure level, temperature), pipe material, and total pipe length; then determine the number of compensators, that is, the number of compensation sections, by considering the effective compensation capacity of each individual compensator. III. Prepare the construction drawings in accordance with the \" atlas of supports and hangers for thermal pipelines\" (R402), and carry out the construction as specified in those drawings. If the project is not of the directly buried type, please note the following points: 1. The compensator should be located in the middle of each compensation section. 2. Fixed brackets (dead points) are installed at both ends of each compensation section. 3. Determine the number of sliding supports based on the allowable support span of the pipeline, striving to use an even number (symmetric on both sides of the compensator). Guiding plates are installed on both the left and right sides of each sliding bracket to prevent radial displacement of the pipeline. 4. Sliding supports and guide plates should be installed near both ends of each compensator. 5. The compensator should be pre-tensioned before installation. Note: After installation, it is necessary to check and remove the pre-tensioning limit bolts. 6. The pipeline installation should maintain a slope of not less than 0.25% in the direction of steam flow, and a certain number of low-level drain valves should be installed. If the pipeline is installed in a trench, a certain number of drainage sumps should be provided. 7. According to this design, the pipe rack can be constructed with the axial thrust at the fixed support approved at 10 tons. 8. After the installation of the tie rod compensator is complete, pay attention to testing for leaks at the static seal points.

Hehe, I have photos from the scene; I can send them to you if you need them for reference.

Reply to 5# willowtree: Thank you for your interest; I’ll get in touch with you offline later.

I’ve learned a lot; thank you for your reply.