US 11,892,101 B1
Anti-frost heaving supports and methods for crude oil pipelines crossing permafrost regions
Yapeng Cao, Lanzhou (CN); Guoyu Li, Lanzhou (CN); Wei Ma, Lanzhou (CN); Dun Chen, Lanzhou (CN); Kai Gao, Lanzhou (CN); and Gang Wu, Lanzhou (CN)
Assigned to NORTHWEST INSTITUTE OF ECO-ENVIRONMENT AND RESOURCES, CAS, Lanzhou (CN)
Filed by NORTHWEST INSTITUTE OF ECO-ENVIRONMENT AND RESOURCES, CAS, Gansu (CN)
Filed on Aug. 29, 2023, as Appl. No. 18/458,134.
Claims priority of application No. 202310051449.X (CN), filed on Feb. 2, 2023.
Int. Cl. F16L 3/02 (2006.01); F16L 1/026 (2006.01)
CPC F16L 1/026 (2013.01) 9 Claims
OG exemplary drawing
 
1. An anti-frost heaving support for a crude oil pipeline crossing a permafrost region, comprising a support frame, wherein an arc-shaped frame is installed on a top of the support frame, two sets of adjusting devices are disposed on the arc-shaped frame, each set of the adjusting devices includes a pushing device, the pushing device is fixedly installed on the arc-shaped frame, a sealing frame is installed on an output end of the pushing device, a piston plate is slidably installed on an inner wall of the sealing frame, a support rod is fixedly installed on an outer surface of the piston plate, a stressed plate is installed on a top of the support rod through an elastic plate, a moving rod is slidably installed in an interior of the support rod, a tilting plate is slidably installed on an inner surface of the piston plate, the sealing frame is provided with an exhaust port, and a sealing plate is rotationally installed at the exhaust port; and an air pump is fixedly installed on the arc-shaped frame, and the air pump is connected to an interior of the sealing frame through a connecting pipe.