How do I read a spring support bracket?
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What does this line drawn mean? A red line, and two white lines. Solve
I can see the red line you drew; it represents the operating load (the load during actual use) and the installation load (the load associated with installing empty pipes). The white line isn’t visible
When installing supports and hangers for pipelines in high-temperature systems, several markings or records should be kept: 1. The original position before installation； 2. The ultimate compression position specified by the manufacturer ； 3. Initial position after installation and debugging ； 4. The position of change corresponding to temperature during the startup heating process ； 5. Stable position under normal operating conditions ； 6. Variable position under abnormal operating conditions ； 7. Change positions corresponding to temperature during the shutdown and cooling process ； 8. Position in the shutdown state. These data (trends) are used for rough comparison, comparing design data (including direction and angle), in order to determine whether there are any abnormalities during the heating and cooling process of the pipeline. Regarding the specific requirements for inspection records, these can be analyzed and implemented with reference to the standard \"DL-T 616 Guidelines for Maintenance and Adjustment of Steam and Water Piping and Supports in Thermal Power Plants\".
I have poor eyesight; I can’t see anything no matter how hard I try
It indicates the positions of the springs in the cold and hot states, ensuring that the springs are neither overloaded nor underloaded.
The white lines are marks made by intentional people. Used to observe displacement.
There is a gauge for springs specified in national standards, with corresponding scale values for the loads. Check what the spring number is, identify the scale values, and you’ll understand; it’s not clear in the diagram. This must be an old spring; new springs have the installation load indicated in their specifications (as a scale value, not the exact amount in N), as well as the installation height and displacement. The values for installation load and working load given in the diagram need to be looked up in a table.