Talk about the function of the fixed bracket of the hanger.

The pipeline fixing bracket is used to bear the thrust generated when the pipeline expands with heat and contracts with cold. Support and foundation should be firm to bear thrust.

The fixed bracket is used where the axial displacement of the pipeline is not allowed. The fixed bracket should be in close contact with the pipeline and fixed firmly.

Construction requirements: the support and hanger of non-insulated slender pipe should be installed vertically; Hangers and suspenders with thermal extension pipes should be offset in the opposite direction of thermal expansion; The supports and hangers fixed on the building structure shall not affect the safety of the structure.

Extended data

1, general pipeline fixed bracket spacing determination principle:

(1) Support and foundation shall be firm.

(2) The distance between the fixed supports directly affects the economy of the pipe network. It is required to arrange the fixed brackets reasonably, so as to increase the allowable spacing of the fixed brackets and reduce the number of pipe racks.

2, fixed bracket spacing must meet the conditions.

(1) The thermal elongation of the pipeline shall not exceed the allowable compensation amount of the compensator;

(2) The thrust generated by thermal expansion of the pipe section shall not exceed the allowable thrust that the fixed bracket can bear;

(3) It is not suitable to bend the pipeline longitudinally.

3, the role of the pipeline:

Pipelines may bear a variety of external forces, including self-weight (the weight of pipes, valves, pipe joints, insulation layer and fluid in pipes), thrust of fluid pressure on pipe ends, snow load, earth pressure, thermal stress caused by thermal expansion and contraction, vibration load and earthquake disaster.

In order to ensure the strength and rigidity of the pipeline, it is necessary to set up various supports (hangers), such as movable supports, fixed supports, guide supports and spring supports. The setting of support depends on pipe diameter, material, wall thickness and load. The fixed bracket is used to control the thermal elongation of the pipeline in sections to make the expansion joint work evenly. The guide bracket enables the pipeline to move only axially.

Baidu Encyclopedia-Pipeline Support

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