CN210650250U

CN210650250U - Deep water pipeline cutting equipment adopting rotary pendulum for positioning

Info

Publication number: CN210650250U
Application number: CN201920863524.1U
Authority: CN
Inventors: 张铁; 赵青山; 符海洲; 张磊
Original assignee: Shanye Marine Services Co ltd; Tianjin Dorian Ocean Engineering Co ltd
Current assignee: Shanye Marine Services Co ltd; Tianjin Dorian Ocean Engineering Co ltd
Priority date: 2019-06-10
Filing date: 2019-06-10
Publication date: 2020-06-02
Anticipated expiration: 2029-06-10

Abstract

A deepwater pipeline cutting device adopting a rotary pendulum for positioning comprises a clamping device and a cutting device; the cutting device is fixed on a rotary box type frame and comprises a telescopic oil cylinder, a high-pressure water gun and a rotary pendulum, and the rotary pendulum is used for positioning a gun head of the high-pressure water gun. The utility model fixes and positions the high-pressure water gun head in a rotary swinging way; therefore, the positioning of the gun head of the high-pressure water gun is more correct and the walking is more stable, and the gun head can normally extend and retract by matching with the energy accumulator.

Description

Deep water pipeline cutting equipment adopting rotary pendulum for positioning

Technical Field

The utility model relates to a deep water pipe cutting machine, specifically speaking are a deep water pipe cutting equipment that is used for adopting rotatory pendulum location of underwater pipe cutting.

Background

The principle of the water cutting technology, also called water jet technology, is that water is increased to the ultrahigh pressure of 100-400 MPa, water pressure heat energy is converted into jet flow kinetic energy (the flow rate is as high as 900m/s and is 2-3 times of the sound velocity) through a small throttling hole (phi 0.15-phi 0.4mm), and the high-speed intensive water jet is used for cutting. The abrasive water jet cutting is to mix abrasive particles into water jet and form abrasive water jet through a mixing pipe for cutting. In the abrasive jet, the abrasive particles are accelerated by taking the water jet as a carrier, and the abrasive water jet has larger jet kinetic energy and stronger cutting efficiency compared with the water jet due to large mass and high hardness of the abrasive. The water cutting technology is widely applied to cutting various materials such as stone, metal, glass, ceramics, cement products, paper, food, plastics, cloth, polyurethane, wood, leather, rubber, ammunition and the like, has the unique advantages that toxic and harmful gas or liquid is not generated, toxic and harmful substances or steam is not generated, and a heat reaction area or mechanical stress residue is not generated on the surface cut by water. At present, the technology of ultrahigh pressure water cutting is broken in international states, such as the United states, Germany, Russia and Italy, representative enterprises include Froude, England and Baisuper, the highest cutting pressure can reach 550Mpa, domestic hydraulic cutting equipment is also developed to a certain extent, but the reliability and the service life of a plurality of links of the equipment are still improved and perfected, and the equipment is only designed and applied to normal environments, for example, the existing hydraulic cutting technology needs to keep continuous and stable outlet high pressure (more than 5000 PSI), cutting water needs to be kept clean and free of impurities, the equipment needs to be provided with sufficient wearing parts, high-pressure pumps, valve bodies, water guns and the like need to be overhauled and damaged parts are replaced regularly, and the on-site operation risk is high. For the special circumstance of ocean deep water cutting, as the cutting of the jacket in the ocean deep water needs to be completed by one-time feed, and high feed precision and continuous cutting-through performance are required, reliable, stable and safe operation for a long time is required. In general, the thickness of the cutting by laser and plasma is too thin, the linear cutting speed is too slow, non-conductive materials cannot be cut, and the cutting is not suitable for operation in a deep water environment. Therefore, the utility model discloses reliable and stable and suitable cutting device of operation in the deep water environment is the urgent affairs of cutting large-scale spud leg in solving current abandonment platform and decomposing and demolising the work.

Patent No. 201520710393.5 discloses a marine deep water cutting device. The utility model provides an ocean deep water cutting device, includes fixed part frame and rotating part frame, the fixed part frame pass through rotating assembly and rotating part frame attach, rotating assembly including installing hydraulic motor, speed reduction machine, the encoder subassembly on the fixed part frame, hydraulic motor drive rotating part frame after speed reduction machine slows down and rotates, the fixed part frame on install and be used for fixing the straining device on the pipeline under water of cutting, install flexible hydro-cylinder on the rotating part frame, the piston rod tip of flexible hydro-cylinder has high-pressure water jet rifle head through the panel mounting. The bottom of the fixed part frame is connected with the rotating part frame through a bearing stator assembly and a bearing rotor assembly, wherein the bearing rotor assembly is connected with a gear at the bottom of the speed reducer in a matching way, and the hydraulic motor is decelerated by the speed reducer and then drives the bearing rotor assembly to realize the rotation of the rotating part frame. The panel have the anticollision wheel through anticollision wheel support mounting, the anticollision wheel can the free rotation and the wheel face be the level setting, the anticollision wheel passes through the screw rod and the nut is fixed on the anticollision wheel support. The cutting device external connection have a hydraulic pressure station, the hydraulic pressure station include the frame, the frame divide into two-layerly, hydraulic tank, control box and control valve group are installed to the frame upper strata, main loop motor pump group, cooling circuit motor pump group and interface panel are installed to the frame lower floor, the control box is connected with control valve group, main loop motor pump group and cooling circuit motor pump group respectively, each pipeline connection in the hydraulic pressure station is to the interface panel, can accurately dispose the pipeline butt joint between hydraulic pressure station and the cutting device through the interface panel.

When pressure oil is fed into a rod cavity of the tensioning oil cylinder, the tensioning mechanism starts to be opened until the tensioning mechanism is tightly attached to a target shaft, and the tensioning mechanism is in a working state. After the tensioning mechanism reaches the working position, the telescopic oil cylinder is made to extend out with the high-pressure gun head by operating the control valve group until the telescopic oil cylinder reaches the inner wall of a target shaft; at this moment, supply water to set pressure to confirm the squirt and penetrated the back with the pit shaft, operation control valves control rotating assembly and begin to rotate, thereby carry out the cutting action, this in-process encoder subassembly can real-time detection and feedback cutting angle, and show on the panel of control box.

The utility model discloses the people discovers, among the above-mentioned technical scheme, the positioning method of the high-pressure rifle head of cutting usefulness makes flexible hydro-cylinder carry the high-pressure rifle head through operation control valves and stretches out, arrives its target pit shaft inner wall always, and this kind of method has high-pressure squirt rifle head location difficulty in actual operation, the unstable shortcoming of squirt walking.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model aims to provide a deep water pipeline cutting device adopting a rotary pendulum for positioning.

The utility model adopts the technical proposal that: a deepwater pipeline cutting device adopting a rotary pendulum for positioning comprises a clamping device and a cutting device; the cutting device is fixed on a rotary box type frame and comprises a telescopic oil cylinder, a high-pressure water gun and a rotary pendulum, and the rotary pendulum is used for positioning a gun head of the high-pressure water gun.

The rotary pendulum comprises a large-diameter rotary shaft, a first waterproof seal, a copper sleeve, a steel cylinder and a second waterproof seal, wherein the copper sleeve is used for assisting in rotating and supporting.

The rotating pendulum is provided with a rotating supporting arm and a water gun walking frame, and the high-pressure water gun is installed on the water gun walking frame.

The working principle of the utility model is that after the clamping device reaches the working position, the telescopic oil cylinder is enabled to carry the high-pressure gun head to extend out through the rotary pendulum by operating the control valve group until reaching the inner wall of the target pipeline; at this time, water is supplied to a set pressure, and after the water gun is confirmed to penetrate through the pipeline, the control valve group is operated to control the rotating assembly to start rotating, so that cutting action is carried out.

The utility model has the advantages that firstly, the high-pressure water gun head is fixed and positioned in a rotating and swinging way; therefore, the positioning of the gun head of the high-pressure water gun is more correct and the walking is more stable, and the gun head can normally extend and retract by matching with the energy accumulator.

And secondly, the rotary pendulum adopts a large-diameter rotary shaft, and the rotary pendulum is used as an auxiliary rotary support through a copper sleeve, so that the gap is low, no displacement or gap exists, the telescopic oil cylinder is ensured to be normally telescopic, and the normal work of high-pressure water is ensured.

Drawings

The contents of the description and the references in the drawings are briefly described as follows:

fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;

fig. 2 is another schematic overall structure diagram of embodiment 1 of the present invention;

fig. 3 is a schematic structural view of the rotating shaft portion of the present invention.

In the drawings, 1. a clamping device; 2. rotating the case frame; 23. a rotating shaft; 231. a first waterproof seal; 232, copper sheathing; 233. a steel cylinder; 234. a second waterproof seal; 24. a telescopic oil cylinder; 25. rotating the pendulum; 27. the squirt walking frame.

Detailed Description

The technical solution of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, fig. 2 and fig. 3, the deep water pipeline cutting device adopting the rotary pendulum positioning comprises a clamping device (1) and a cutting device; the cutting device is fixed on a rotating box type frame (2), the cutting device comprises a telescopic oil cylinder (24), a high-pressure water gun and a rotating pendulum (25), and the rotating pendulum (25) is used for positioning a gun head of the high-pressure water gun.

The rotary pendulum (25) comprises a large-diameter rotary shaft (23), a first waterproof seal (231), a copper sleeve (232), a steel cylinder (233) and a second waterproof seal (234), wherein the copper sleeve (232) is used for assisting in rotary support.

The rotary pendulum is provided with a rotary supporting arm and a water gun walking frame (27), and the high-pressure water gun is installed on the water gun walking frame.

Although the preferred embodiments of the present invention have been described in detail, the invention is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and the equivalents or substitutions are included in the scope of protection defined by the claims of the present application.

Claims

1. A deepwater pipeline cutting device adopting a rotary pendulum for positioning comprises a clamping device and a cutting device; the cutting device is characterized by being fixed on a rotary box type frame and comprising a telescopic oil cylinder, a high-pressure water gun and a rotary pendulum, wherein the rotary pendulum is used for positioning a gun head of the high-pressure water gun.

2. The deep water pipe cutting apparatus using rotary pendulum positioning of claim 1, wherein the rotary pendulum comprises a large diameter rotary shaft, a first waterproof seal, a copper sleeve, a steel cylinder and a second waterproof seal, the copper sleeve is used for auxiliary rotary support.

3. The deep water pipeline cutting equipment adopting the rotary pendulum for positioning as claimed in claim 1 or 2, wherein the rotary pendulum is provided with a rotary supporting arm and a water gun walking frame, and the high-pressure water gun is mounted on the water gun walking frame.