Device and method for erecting submarine pipelines in marine engineering

1 . A device for erecting submarine pipelines in marine engineering, comprising:

a first bottom plate;

a first clamping piece, comprising a moving support and a first clamping jaw, wherein the moving support is arranged on the first bottom plate and driven to move by a moving mechanism, and the first clamping jaw is arranged on the moving support, and the first clamping jaw is used for positioning and preliminarily clamping the pipeline;

a second clamping piece, comprising a fixed support and a second clamping jaw, wherein the fixed support is fixed on the first bottom plate, the second clamping jaw is arranged on the fixed support, and the second clamping jaw is used for clamping the pipeline for the second time;

wherein the second clamping piece and the first clamping piece are arranged along a first direction, and the first direction is the longitudinal direction of the pipeline;

wherein the device further comprises a second bottom plate, the second bottom plate is fixed on the seabed and arranged below the first bottom plate, and a buffer mechanism for buffering the first bottom plate is arranged on the second bottom plate;

wherein the buffer mechanism comprises one or more first buffer pieces, and the first buffer pieces comprise elastic bodies, the elastic bodies are arranged on the second bottom plate along the first direction in a sliding way, and both ends of the elastic bodies are provided with first rotating rods, both ends of the first rotating rods are rotatably connected with the elastic bodies and the first bottom plate respectively; and

wherein the first buffer piece further comprises limit plates, and the two limit plates are fixed on the second bottom plate at a certain distance and connected through a cross bar; the elastic body comprises a spring and sliders, and the two sliders are slidably arranged on the cross bar; the spring is sleeved on the cross bar with both ends fixed with the two sliders respectively, and each slider is rotatably connected with the first bottom plate through the first rotating rod.

2 . The device for erecting submarine pipelines in marine engineering according to claim 1 , wherein

the buffer mechanism also comprises one or more second buffer pieces, and the second buffer pieces are arranged in the vertical direction.

3 . The device for erecting submarine pipelines in marine engineering according to claim 1 , wherein

the moving mechanism comprises a moving driver and a slide rail, wherein the moving support is slidably arranged on the slide rail, the moving driver drives the moving support to move along the extending direction of the slide rail, the extending direction of the slide rail is a second direction, and the second direction is perpendicular to the first direction and the vertical direction.

4 . The device for erecting submarine pipelines in marine engineering according to claim 3 , wherein

a limiting mechanism is also comprised, the limiting mechanism comprises a rack and a gear, wherein the rack is fixed on the first bottom plate, the gear is arranged on the moving support and meshed with the rack, and the extension direction of the rack is the second direction.

5 . The device for erecting submarine pipelines in marine engineering according to claim 3 , wherein

the first clamping jaw comprises two first clamping plates oppositely arranged along the second direction, and the two first clamping plates are respectively driven to rotate around the first direction by a rotation driver.

6 . The device for erecting submarine pipelines in marine engineering according to claim 3 , wherein

the second clamping jaw comprises two second clamping plates oppositely arranged along the second direction, a lifting driver is arranged on the fixed support, and the top of the lifting driver is rotatably connected with two second rotating rods distributed in a V shape, and the two second rotating rods are respectively fixed with the two second clamping plates.

7 . A method for erecting submarine pipelines in marine engineering, which is applied to the device for erecting submarine pipelines in marine engineering according to claim 1 , wherein the method comprises the following steps:

S 1 , driving the moving support to move by the moving mechanism to make the first clamping jaw position and clamp the pipeline initially;

S 2 , controlling the second clamping jaw to clamp the pipeline for the second time to avoid the displacement of the pipeline during operation;

S 3 , driving the moving support by the moving mechanism to move, and finely adjusting the position of the pipeline to ensure the accurate position of the pipeline; and

S 4 , controlling the second clamping jaw to fine-tune and clamp the pipeline again.