Steel lining polytetrafluoroethylene compensator

Abstract

The invention discloses a steel lining polytetrafluoroethylene compensator in the technical field of compensators. The steel lining polytetrafluoroethylene compensator comprises a corrugated pipe. Theleft end and the right end of the corrugated pipe are provided with fixing rings. Four elastic extensible and retractable pieces which are the same in structure are connected between the two fixing rings which are the same in structure. The ends, far away from the corrugated pipe, of the fixing rings are provided with installation pipes. Inner cavities of the installation pipes are internally provided with sealing rings. The surfaces of the sealing rings are connected with threaded pipes in a screwed manner. The ends, far away from the sealing rings, of the threaded pipes are provided with locking pipes. The surfaces of the locking pipes are connected with rotating devices in a rotating manner. The steel lining polytetrafluoroethylene compensator can limit the deformation range of a pipeline and suitable for various pipelines with different diameters, the situation that the pipeline deforms too much and damage is caused is prevented, and an adaptor device is not needed.

Description

technical field [0001] The invention relates to the technical field of compensators, in particular to a steel-lined PTFE compensator. Background technique [0002] In daily life, tap water, natural gas, oil, air-conditioning, and heating are all transported by pipelines, and the pipelines will expand and contract with temperature changes. When the pipeline is heated, it will become longer. When the temperature of the pipeline decreases , will become shorter, such a change will easily cause gaps in the joints of the pipes, which will cause leakage. The effective telescopic deformation of the bellows is to absorb the dimensional changes of the pipelines, conduits, containers, etc. due to thermal expansion and contraction, or to compensate for the axial, lateral, and angular displacement of the pipelines, conduits, containers, etc., to prevent heating pipes When the temperature rises, the pipe is deformed or damaged due to thermal elongation or temperature stress, and a compen...

AI Technical Summary

Problems solved by technology

[0002] In daily life, tap water, natural gas, oil, air-conditioning, and heating are all transported by pipelines, and pipelines will expand and contract with temperature changes. When the pipeline is heated, it will become longer. When the temperature of the pipeline decreases , will be shortened, such a change will easily cause gaps in the joints of the pipes, which will cause leakage. The device used to deal with this phenomenon on the market is called a compensator, which is also called an expansion joint or expansion joint by habit. The effective telescopic deformation of the bellows is to absorb the dimensional changes of the pipelines, conduits, containers, etc. due to thermal expansion and contraction, or to compensate the axial, lateral, and angular displacements of the pipelines, conduits, containers, etc., to prevent heating pipes When the temperature rises, the pipe is deformed or damaged due to thermal elongation or temperature stress, and a compensator needs to be installed on the pipe to compensate for the thermal elongation of the pipe, thereby reducing the stress on the pipe wall and the force acting on the valve or bracket structure. However, the expansion and deformation resistance of compensators on the market is fixed and cannot be adjusted, and the expansion coefficients of pipes made of different materials can not help but be the same. Excessive stress will easily cause the pipe to break, and too small stress will easily cause the natural deformation of the pipe. , causing damage. In addition, the diameter of the traditional compensator is fixed, and it can only be installed with fixed diameter pipes, which cannot meet the needs of today's society.

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