The principle of determining the spacing of pipeline fixed brackets;

1. The pipeline fixing bracket is used to bear the thrust generated when the pipeline expands with heat and contracts with cold. Therefore, the support and foundation need to be firm to bear the thrust.

2, the size of the fixed bracket spacing directly affects the economy of the pipe network, therefore, it is required that the fixed bracket layout is reasonable, which can increase the allowable spacing of the fixed bracket and reduce the number of pipe racks.

3. Installation height of slab support: the floor support below 4m is 1.5 ~ 1.8m, preferably1.65m.. If the floor is more than 4 meters, it will be distributed evenly in proportion. ''

Extended data:

The diameter of pipeline can be divided into outer diameter, inner diameter and nominal diameter. The outside diameter of seamless steel pipe is indicated by the letter D, followed by the size and wall thickness of the outside diameter. For example, a seamless steel pipe with an outer diameter of 108, with a wall thickness of 5MM, is represented by D 108*5, and a plastic pipe is also represented by an outer diameter, such as De63. Others such as reinforced concrete pipes, cast iron pipes and galvanized steel pipes are represented by DN.

Nominal diameter is generally indicated in design drawings. Nominal diameter is an artificially specified standard for the convenience of design, manufacture and maintenance, also called nominal diameter, which is the specification name of pipe (or pipe fitting).

The nominal diameter of a pipeline is not equal to its inner diameter and outer diameter. For example, there are several kinds of seamless steel pipes with a nominal diameter of 100MM, such as 102*5 and 108*5, where 108 is the pipe outer diameter and 5 represents the pipe wall thickness.

So the inner diameter of the steel pipe is (108-5-5)=98MM, but it is not completely equal to the outer diameter of the steel pipe minus twice the wall thickness. In other words, the nominal diameter is the specification name of the pipe diameter close to the inner diameter but not equal to the inner diameter. Therefore, the use of nominal diameter in design drawings is to determine the structures such as pipes, fittings, valves, flanges and gaskets according to the nominal diameter.

If the outside diameter is indicated in the design drawing, a pipeline specification comparison table should be made to indicate the nominal diameter and wall thickness of a pipeline.

Baidu Encyclopedia-Pipeline Support

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