Guide spring frame and limit spring frame

Firstly, a spring alone cannot serve as a guide or a limiter. If you want to achieve these two effects, you need to add a bracket separately. Second, different channel steels or I-beams have varying load-bearing capacities; the specific type to be used depends on the amount of stress applied. Third, the setting of the guide or gap requires some technical skill. There is no definitive decision on exactly how many millimeters it should be; it depends on the layout of your piping system and the areas that are of priority. Its general function is to isolate the interaction between pipes. For example, such brackets can be added in front of the device nozzles to reduce the impact of the piping system on the forces acting on the nozzles.

For the stress on pipe 2# llu85, is channel steel or I-beam used, and is the selection based on torque calculations? [20] What level of force can it withstand? I’m also new to this field, so I want to choose something that’s reliable. . . Could you give an example to illustrate the difference when the guidance clearance is 0 mm or 2 mm? Because I saw that in the pipe rack manuals issued by the Ministry of Chemical Industry, the guide spacing is set to 2, but I noticed that in a spring rack designed by an expert, the guide spacing was set to 0 mm, which I don’t quite understand.

Another issue is that of the guide spring brackets installed at the nozzles of the equipment; since some of these devices are very tall, with the nozzles extending dozens of meters upward, and there are no other platforms available for installing bracketing structures, it is necessary to install such brackets on the equipment itself. So how should these guide spring brackets be designed in such cases?

Experts, please share your opinions and offer some suggestions!

Regarding the type of steel to be used for the stress resistance of scaffolds, I recommend that you take a look at the Red Book on Design and Calculation; there is a dedicated chapter on this topic. Regarding the spacing between supports, it really can’t be generalized. It depends on your piping system. If you are just starting to learn, I would suggest trying out several different guide spacing values. For example, 0, 1, 2, 3. Let’s take a look at the impact of the spacing on the results.

Just a quick question: what is the Red Book on Design and Calculation?

I suggest you search for it. You will get the answer you want.

The force acting on the spring hanger is only a vertical force. For the installation of guides and limiting frames, as well as the selection of steel sections such as I-beams, channel beams, and angle bars, please refer to the standard pipe rack diagram HGT21629 or other standard diagrams. These documents specify the appropriate types of pipe racks to be used, as well as the allowable stress values for those racks. They are also useful for determining the appropriate support and hanger systems. For the gap, I usually don’t enter a value when modeling; for rigid supports, I generally enter 0.3 (for steel-to-steel), depending on the specific situation.

1. The guide frame belongs to a restrictive bracket. Spring hangers, which are used to restrict the axial movement of pipes, belong to load-bearing hangers. As the name implies, it is used to bear pipes, media, and other external loads. 2. In the guide frames, there are angle steel, channel steel, and H-shaped steel. It is mainly determined by the diameter of the pipe. A guide frame made of angle steel with a natural small diameter is sufficient. To enhance the restraining strength for large-diameter pipes, guide frames made of channel steel are used. In engineering, I usually use channel steel for guide frames, and rarely use H-shaped steel. Maybe the pipe diameter isn’t large enough. 3. In my projects, the clearance of the guide frame is usually 3 mm. Allow the pipe to have a certain amount of strain displacement in the radial direction. This is also necessary to increase flexibility. If it is 0 mm, the strain displacement of the pipe in the radial direction is restricted, which reduces the flexibility of the pipe. It is estimated that it would be used in some applications where high requirements are placed on radial strain displacement.

This post was last edited by dragon__x on 2010-5-20 at 12:00. Have you ever seen, in the design process or on site, a guide spring frame with a guide clearance of 0 mm?