公开(公告)号：US12085212B1

公开(公告)日：2024-09-10

申请号：US18639942

申请日：2024-04-18

Applicant: NORTHWEST INSTITUTE OF ECO-ENVIRONMENT AND RESOURCES, CAS

Inventor： Yapeng Cao ,  Guoyu Li ,  Changqing Li ,  Kai Gao ,  Dun Chen

IPC: F16L53/70 ,  F17D1/08 ,  F17D5/00

CPC classification number: F16L53/70 ,  F17D1/084 ,  F17D5/00

Abstract: A pipeline support device for preventing melting and sinking based on gas heat exchange. The pipeline support device may be installed in a trench, and the pipeline support device may include a support frame and a gas heat exchange mechanism arranged on one side of the support frame. A bottom of the support frame may be fixed in the trench, a support partition may be fixed inside the support frame, the support partition separating the bottom of the support frame to form an upper chamber and a lower chamber. The gas heat exchange mechanism may include two groups of ventilation components, a group of air changing component and a group of control component. The control component may control opening and closing of ventilation openings of the ventilation pipes.

公开(公告)号：US11892101B1

公开(公告)日：2024-02-06

申请号：US18458134

申请日：2023-08-29

Applicant: NORTHWEST INSTITUTE OF ECO-ENVIRONMENT AND RESOURCES, CAS

Inventor： Yapeng Cao ,  Guoyu Li ,  Wei Ma ,  Dun Chen ,  Kai Gao ,  Gang Wu

IPC: F16L3/02 ,  F16L1/026

CPC classification number: F16L1/026

Abstract: Embodiments provide anti-frost heaving supports and methods for crude oil pipeline crossing permafrost region. The anti-frost heaving support includes a support frame. 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 fixedly installed on the arc-shaped frame. In the anti-frost heaving support, a piston plate compresses air inside the sealing frame so that a compressional force of an elastic plate and a stressed plate on the pipeline increases. When the compressional force increases, the elastic plate deforms to make a moving rod to move towards to an interior of the sealing frame. When moving on a tilted surface of a tilting plate, the moving rod pushes the tilting plate to move. The tilting plate pushes the sealing plate to be opened to release the air inside the sealing frame, thereby reducing the compressive force exerted by the stressed plate on the pipeline.