Outer water-cooling and inner thermal-insulating high-pressure and high-temperature expansion joint

A high-pressure, high-temperature, expansion joint technology, which is applied in the field of expansion joints for high-temperature aerodynamic pipelines, can solve problems such as high design temperature and expansion joints that cannot meet design conditions, and achieve improved bearing capacity, no abnormal deformation compensation action, and slow corrosion Effect
CN102720914BActive Publication Date: 2014-04-16CHENGUANGDONGLUO BELLOWS CO LTD NANJING
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
CHENGUANGDONGLUO BELLOWS CO LTD NANJING
Publication Date
2014-04-16

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Abstract

The invention discloses an outer water-cooling and inner thermal-insulating high-pressure and high-temperature expansion joint, which is characterized in that two ends of a corrugated pipe (1) are connected with two pressure bearing ring plates (7), the two pressure bearing ring plates (7) are mounted on the outer side walls of two connection tubes (4) respectively, the outer side end parts of the two connection tubes (4) are connected with respective corresponding flanges (3), water jackets (5) outside the connection tubes (4) are arranged between the pressure bearing ring plates (7) and the flanges (3), the inner side end parts of the two connection tubes (4) are connected with two lining cylinders (14) with partial crossed cylinder bodies, zirconium-containing fiber blanket assemblies (15) are arranged on the outer side walls of the lining cylinders, and corrugated inside clearances of the corrugated pipe (1) are filled with zirconium-containing cellucotton. After an aerodynamic pipeline adopts the expansion joint provided by the invention, the expansion joint has the advantages of no abnormal deformation and flexible and reliable compensation action, stress and moment of main equipment are decreased to the level below the allowable stress value and the allowable moment value, and the equipment and pipelines run stably.
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Description

technical field

[0001] The invention relates to an expansion joint for a high-temperature aerodynamic pipeline. Background technique

[0002] The high-temperature aerodynamic pipeline medium is high-temperature gas, the design temperature is as high as 800ยฐC, and the design pressure is 1MPa. There are special requirements for the structural design of the expansion joint. The conventional expansion joint cannot meet the above-mentioned high temperature and high pressure design conditions. Contents of the invention

[0003] The purpose of the present invention is to provide an external water-cooled internal temperature-insulated high-pressure high-temperature expansion joint that improves the safety of the expansion joint under high-temperature and high-pressure conditions for the high-temperature and high-pressure dangerous and harsh working conditions of the expansion joint for high-temperature aerodynamic pipelines. .

[0004] The technical scheme that the present invent...

Claims

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