Double-layer pipeline mounting device

Abstract

The utility model relates to a double-layer pipeline installation device which comprises an annular hoop arranged on the circumferential outer wall of an inner-layer pipeline in a sleeved mode and a centering assembly installed on the annular hoop, and the centering assembly comprises a plurality of centering bases sequentially arranged in the circumferential direction of the arc-shaped hoop. A nylon centering plate is further connected to the side, away from the annular hoop, of the centering base and fixed to the centering base through cooperation of a bolt and a nut. The nylon centering plate is in an isosceles trapezoid shape, and the bottom edge of the side, with the small size, of the nylon centering plate is attached to the inner wall of the outer-layer pipeline. Compared with the prior art, the utility model has the advantages that: through the mutual matching of the annular hoop and the centering component, the relative position between the inner-layer pipeline and the outer-layer pipeline is limited and kept in the installation process, so that the stability of the relative position between the inner-layer pipeline and the outer-layer pipeline is ensured, the pipeline collision condition is avoided, and the service life of the pipeline is prolonged. And meanwhile, the centering property of an internal pipeline can be effectively ensured.

Description

Technical Field

[0001] The utility model relates to the field of offshore platform construction, in particular to a double-layer pipeline installation device. Background Art

[0002] In the implementation of wind power platform projects or drilling platform offshore projects, the installation of seawater pumps is often involved. Seawater pumps are suitable for fire protection, equipment heat dissipation, seawater desalination on offshore platforms, and can also be used for ground source heat pump air conditioning heating in coastal areas, all seawater lifting, coastal square fountain landscape, seawater aquaculture, etc. The equipment has low noise, high efficiency and energy saving.

[0003] At present, during the installation of seawater pumps, double-layer pipelines are usually used for the pipelines of seawater pumps, with the inner pipeline being the medium delivery pipe and the outer pipeline being the protective casing. When installing the existing double-layer pipelines, the outer pipeline is generally installed first, and then the inner pipeline is installed by hoisting. When installing the inner pipeline, since a certain gap needs to be left between the inner pipeline and the outer pipeline, the centering of the inner pipeline is a difficult point; in addition, the pipelines of seawater pumps generally used on offshore platforms are relatively long, so when installing the inner pipeline, it is difficult to control how the inner pipeline does not collide with the outer pipeline. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a double-layer pipeline installation device which is convenient for centering the internal pipeline and avoids the collision between the internal pipeline and the external pipeline.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a double-layer pipeline installation device, the double-layer pipeline includes an inner layer pipeline and an outer layer pipeline arranged inside and outside, and a gap is left between the inner layer pipeline and the outer layer pipeline. The innovation point is: the installation device includes

[0006] A set of annular clamps mounted on the circumferential outer wall of the inner pipe;

[0007] A centering assembly installed on the annular clamp, the centering assembly includes a plurality of centering seats arranged in sequence along the circumferential direction of the arc-shaped clamp, and a nylon centering plate is connected to the side of the centering seat away from the annular clamp, and the nylon centering plate is fixed to the centering seat by the cooperation of bolts and nuts;

[0008] The nylon centering plate is in the shape of an isosceles trapezoid, and the two waists of the nylon centering plate are respectively distributed up and down, the two bottom edges of the nylon centering plate are respectively vertically arranged, and the bottom edge of the smaller side of the nylon centering plate fits with the inner wall of the outer pipeline.

[0009] Furthermore, the centering seat includes a pair of centering fixing plates arranged in parallel, a gap is left between the two centering fixing plates, and a reinforcing plate is connected to the outer sides of the two centering fixing plates.

[0010] Furthermore, a concentrically arranged reinforcement ring is provided on the outer side of the annular clamp, and the reinforcement ring is fixedly connected to each centering seat.

[0011] The advantage of the utility model is that the installation device in the utility model, through the mutual cooperation of the annular clamp and the centering component, plays a role of limiting and maintaining the relative position between the inner pipeline and the outer pipeline during the installation process, ensuring the stability of the relative position between the inner pipeline and the outer pipeline, and thus preventing pipeline collision, and at the same time effectively ensuring the centration of the internal pipeline.

[0012] An isosceles trapezoidal nylon centering plate is used to contact the inner wall of the outer pipe, so that the nylon centering plate can better fit the inner wall of the outer pipe, play a centering effect, and can also avoid wear on the inner wall of the outer pipe.

[0013] The design of the centering seat adopts a pair of centering fixing plates. On the basis of being able to fix the nylon centering plate well, the overall weight of the centering seat is reduced. The design of the reinforcing plate is used to strengthen the structure of the centering seat and ensure the overall structural strength of the centering seat.

[0014] The reinforcement ring is designed to strengthen the structure of each centering seat, stabilize the position of all centering seats, avoid bending of the centering seat itself or bending of the connection between the centering seat and the annular clamp, and ensure the centering effect during the subsequent installation of the inner and outer pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0016] Figure 1 It is a schematic diagram of the double-layer pipeline installation device of the utility model.

[0017] Figure 2 This is a state diagram of the double-layer pipeline installation device of the utility model being installed in coordination. DETAILED DESCRIPTION

[0018] The following embodiments may enable those skilled in the art to more fully understand the present invention, but the present invention is not limited to the scope of the embodiments.

[0019] like Figure 1 , Figure 2A double-layer pipeline installation device is shown, the double-layer pipeline includes an inner layer pipeline 1 and an outer layer pipeline 2 which are arranged inside and outside, and a certain gap is left between the inner layer pipeline 1 and the outer layer pipeline 2.

[0020] The installation device includes

[0021] A set of annular hoop 3 is mounted on the circumferential outer wall of the inner layer pipeline 1, one side of the annular hoop 3 is fixed by the cooperation of bolts and nuts, and the size of the annular hoop 3 is smaller than the size of the outer wall of the inner layer pipeline 1.

[0022] The centering assembly installed on the annular clamp 3 includes several centering seats 4 arranged in sequence along the circumferential direction of the arc clamp 3. The centering seat 4 includes a pair of parallel centering fixing plates 41, with a gap between the two centering fixing plates 41. The centering fixing plates 41 are rectangular plates. A reinforcing plate 42 is also connected to the outside of the two centering fixing plates 41. The reinforcing plate 42 is an L-shaped plate, and the width direction of the centering fixing plate 41 is perpendicular to the width direction of the reinforcing plate 42. For the design of the centering seat 4, a pair of centering fixing plates 41 are used. On the basis of being able to fix the nylon centering plates 41 well, the overall weight of the centering seat 4 is reduced, and the design of the reinforcing plate 42 is used to strengthen the structure of the centering seat 4 to ensure the overall structural strength of the centering seat 4.

[0023] A reinforcing ring 6 is concentrically arranged on the outside of the annular clamp 3, and the reinforcing ring 6 is fixedly connected to each centering seat 4. The reinforcing ring 6 is designed to strengthen the structure of each centering seat 4, stabilize the position of all centering seats 4, avoid bending of the centering seat 4 itself or bending of the connection between the centering seat 4 and the annular clamp 3, and ensure the centering effect during the subsequent installation of the inner layer pipeline 1 and the outer layer pipeline 2.

[0024] A nylon centering plate 5 is also connected to the side of the centering seat 4 away from the annular clamp 3. The nylon centering plate 5 is fixed to the centering seat by the cooperation of bolts and nuts. The nylon centering plate 5 is located between the two centering fixing plates 41, and one side of the nylon centering plate 5 extends out of the centering fixing plates 41. A pair of through holes for bolts to pass through are opened on the nylon positioning plate 5, and a pair of through holes for bolts to pass through are also opened on the two centering fixing plates 41. After a pair of bolts pass through the through holes on the centering fixing plates 41 and the through holes on the nylon positioning plates 5, nuts are used to lock them, thereby fixing the nylon positioning plates 5. The nylon positioning plates 5 and the centering seat 4 are connected and fixed by the cooperation of bolts in order to facilitate the replacement of the nylon positioning plates 5 after the nylon positioning plates 5 are worn out.

[0025] The nylon centering plate 5 is in the shape of an isosceles trapezoid, and the two waists of the nylon centering plate 5 are respectively distributed up and down, and the two bottom edges of the nylon centering plate 5 are respectively arranged vertically, and the bottom edge of the smaller side of the nylon centering plate 5 is in contact with the inner wall of the outer layer pipe 2. The nylon centering plate 5 in the shape of an isosceles trapezoid is used to contact the inner wall of the outer layer pipe 2, so that the nylon centering plate 5 can better fit the inner wall of the outer layer pipe 2, play a centering effect, and can also avoid the wear effect on the inner wall of the outer layer pipe 2.

[0026] Working principle: When installing double-layer pipelines, after the outer pipeline 2 is fixed, the annular hoop 3 is installed on the outer wall of the bottom end of the inner pipeline 1, and the annular hoop 3 is locked by the combination of bolts and nuts, so that the annular hoop 3 can be well fixed on the outer wall of the inner pipeline 1, and then the inner pipeline 1 is lifted by hoisting and placed in the outer pipeline 2. When placing, the relative position between the inner pipeline 1 and the outer pipeline 2 is limited by the fit of each nylon positioning plate 5 and the inner wall of the outer pipeline 2, and at the same time, the relative position between the inner pipeline 1 and the outer pipeline 2 is maintained, thereby avoiding the collision between the inner pipeline 1 and the outer pipeline 2 during installation, and ensuring the concentricity of the inner pipeline 1 and the outer pipeline 2. After the installation of the inner pipeline 1 is completed, the annular hoop 3 is loosened and the entire installation device is removed.

[0027] Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the description are only for explaining the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A double-layer pipeline installation device, the double-layer pipeline includes an inner layer pipeline and an outer layer pipeline arranged inside and outside, and a gap is left between the inner layer pipeline and the outer layer pipeline, characterized in that: The installation device includes A set of annular clamps mounted on the circumferential outer wall of the inner pipe; A centering assembly installed on the annular clamp, the centering assembly includes a plurality of centering seats arranged in sequence along the circumferential direction of the arc-shaped clamp, and a nylon centering plate is connected to the side of the centering seat away from the annular clamp, and the nylon centering plate is fixed to the centering seat by the cooperation of bolts and nuts; The nylon centering plate is in the shape of an isosceles trapezoid, and the two waists of the nylon centering plate are respectively distributed up and down, the two bottom edges of the nylon centering plate are respectively vertically arranged, and the bottom edge of the smaller side of the nylon centering plate fits with the inner wall of the outer pipeline.

2. The double-layer pipeline installation device according to claim 1 is characterized in that: The centering seat comprises a pair of centering fixing plates which are arranged in parallel, a gap is left between the two centering fixing plates, and a reinforcing plate is connected to the outer sides of the two centering fixing plates.

3. The double-layer pipeline installation device according to claim 1 is characterized in that: A concentrically arranged reinforcement ring is also arranged on the outer side of the annular clamp, and the reinforcement ring is fixedly connected to each centering seat.

Images