CN223782222U - Internal support device for flexible pipes - Google Patents

Abstract

This application provides an internal support device for flexible pipes, installed inside the flexible pipe to support the inner wall of the flexible pipe against deformation of the outer wall caused by pressure. It includes: a support frame with a circular cross-section; and a telescopic assembly comprising multiple telescopic members and a first connecting seat and a second connecting seat respectively provided at the fixed end and telescopic end of each telescopic member. The multiple telescopic members are detachably mounted on the outer peripheral wall of the support frame at equal intervals via the first connecting seats. Each second connecting seat is detachably provided with a support plate adapted to the shape of the flexible pipe. The multiple telescopic members drive the support plates to support the inner peripheral wall of the flexible pipe. This application improves the reusability of the internal support device for flexible pipes, saves on the cost of internal support for flexible pipes, and is applicable to supporting the inner walls of flexible pipes of different diameters, thus improving the wide applicability of the internal support device for flexible pipes.

Description

Inner supporting device for flexible pipeline

Technical Field

The application relates to the technical field of flexible pipeline support, in particular to an inner support device for a flexible pipeline.

Background

Flexible pipes (e.g., high Density Polyethylene (HDPE) pipes, polyvinyl chloride (PVC) pipes, etc.) are widely used in gravity flow drainage systems because of their pressure resistance and good mechanical properties, corrosion resistance, biodegradation resistance, etc., while flexible pipes used in gravity flow drainage systems are typically flexible pipes having a larger diameter ranging from 2.6m to 3 m. However, in the process of backfilling after the flexible pipe is installed, the flexible pipe is easy to deform after being extruded by backfill soil and the like, and structural damage of the pipe is likely to be caused, or the pipe is worn under the long-term action of fluid in the pipe, or the smooth butt joint of the pipe joint is affected, and the like. In addition, it is mentioned in GB 50268-2008 that flexible pipelines with the inner diameter larger than 800mm are required to be vertically supported in the pipeline, so that the inside of the flexible pipeline is required to be supported in the process of flexible pipeline construction in order to ensure the construction quality and the pipeline safety and meet the standard requirements.

The existing flexible pipeline is internally supported by a disposable support which is usually erected in the flexible pipeline to temporarily support the flexible pipeline, the temporarily erected disposable support is usually directly removed after the flexible pipeline is installed and backfilled, so that the temporary support is difficult to reuse, and the disposable support is difficult to be suitable for supporting flexible pipelines with different pipe diameters, so that waste of labor, materials and the like is caused, and the cost of the flexible pipeline internal support is increased.

Disclosure of utility model

The application provides an inner supporting device for a flexible pipeline, which is used for solving the technical problems described in the background art.

In order to solve the technical problems, the application is realized by adopting the following technical scheme:

The application provides an inner supporting device for a flexible pipeline, which is arranged in the flexible pipeline and is used for supporting the inner wall of the flexible pipeline to resist deformation of the outer wall of the flexible pipeline caused by compression, and comprises the following components:

the section of the supporting framework is circular;

The telescopic component comprises a plurality of telescopic pieces, a first connecting seat and a second connecting seat, wherein the fixed end and the telescopic end of each telescopic piece are respectively provided with the first connecting seat and the second connecting seat, the telescopic pieces are detachably arranged on the peripheral wall of the supporting framework at equal intervals through the first connecting seats, each second connecting seat is detachably provided with a supporting plate matched with the shape of the flexible pipeline, and the telescopic pieces are used for driving the supporting plates to support the inner peripheral wall of the flexible pipeline.

Optionally, the support skeleton comprises a first annular tube and a second annular tube;

The diameter of the first annular pipe is smaller than that of the second annular pipe, a plurality of support rods are arranged on the outer peripheral wall of the first annular pipe at equal intervals, one ends, far away from the first annular pipe, of the support rods are connected with the inner peripheral wall of the second annular pipe, and the second annular pipe is detachably connected with the first connecting seat.

Optionally, a first threaded through hole is formed in each first connecting seat, a first threaded hole corresponding to the first threaded through hole is formed in each second annular tube, and the first connecting seat and the second annular tube penetrate through the first threaded through holes through the screw ends of the first fastening bolts and are rotatably arranged in the first threaded holes to realize detachable connection of the first threaded through holes and the second threaded holes.

Optionally, a second threaded through hole is formed in each second connecting seat, a second threaded hole corresponding to the second threaded through hole is formed in the bearing plate, and the second connecting seats and the bearing plate penetrate through the second threaded through holes through the screw ends of the second fastening bolts and are rotatably arranged in the second threaded holes to realize detachable connection of the second connecting seats and the bearing plate.

Optionally, the thickness of the bearing plate is 6 mm-10 mm.

Optionally, the bearing plate is arc-shaped or rectangular.

Optionally, the outer surface of the bearing plate far away from the telescopic piece is provided with a buffer layer;

the thickness of the buffer layer is 2 mm-5 mm.

Optionally, the supporting framework and the bearing plate are made of high-strength aluminum alloy materials.

Optionally, the inner support device for the flexible pipeline further comprises a PLC control system which is arranged in the flexible pipeline close to the support framework;

The telescopic members are hydraulic jacks, the telescopic members are electrically connected with the PLC control system, and the PLC control system is used for controlling the telescopic members to synchronously stretch and retract so as to realize the support of the bearing plate on the inner wall of the flexible pipeline.

The application provides an inner supporting device for flexible pipelines, which is characterized in that a first connecting seat and a second connecting seat are respectively arranged at the fixed end and the telescopic end of a telescopic piece, a plurality of telescopic pieces are detachably arranged on the peripheral wall of a supporting framework at equal intervals through the first connecting seats on the telescopic pieces, a supporting plate is detachably arranged on the second connecting seat on the telescopic end of each telescopic piece, and further the supporting plate is driven to support the inner wall of the flexible pipeline through the telescopic of the telescopic piece, the first connecting seat and the supporting framework and the second connecting seat and the supporting plate are detachably connected, so that the inner supporting device for the flexible pipeline is convenient to install and detach, namely, if the inner supporting device for the flexible pipeline is needed to be reused, the supporting framework, the first connecting seat and the supporting plate and the second connecting seat are only needed to be connected together, the recycling rate of the inner supporting device for the flexible pipeline is improved, and the cost for supporting the inside of the flexible pipeline is saved. In addition, the setting of extensible member makes flexible pipeline use interior strutting arrangement can be applicable to the inner wall of the flexible pipeline to different pipe diameter sizes and supports to flexible pipeline has improved flexible pipeline and has used interior strutting arrangement's extensive suitability.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a flexible pipe with an inner support device according to an embodiment of the present application installed in a flexible pipe;

FIG. 2 is a front view of FIG. 1 according to an embodiment of the present application;

FIG. 3 is a schematic view of an inner support device for flexible pipes according to an embodiment of the present application;

FIG. 4 is a schematic view of a partially enlarged structure of the inner support device for flexible pipes in FIG. 3 according to an embodiment of the present application;

FIG. 5 is a schematic view of a partially enlarged structure of the inner support device for flexible pipes in FIG. 3 according to an embodiment of the present application;

FIG. 6 is a schematic view of a structure of a support plate of an inner support device for flexible pipes according to an embodiment of the present application;

fig. 7 is a schematic diagram of electrical connection between a plurality of telescopic members and a PLC control system according to an embodiment of the present application.

In the figure, 100 parts of flexible pipelines, 200 parts of supporting frameworks, 201 parts of first annular pipes, 2011 parts of supporting rods, 202 parts of second annular pipes, 2021 parts of first threaded holes, 300 parts of telescopic components, 301 parts of telescopic components, 302 parts of first connecting seats, 3021 parts of first threaded through holes, 303 parts of second connecting seats, 3031 parts of second threaded through holes, 400 parts of supporting plates, 401 parts of second threaded holes, 402 parts of buffer layers, 500 parts of first fastening bolts, 600 parts of second fastening bolts, 700 parts of PLC control systems.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are also within the scope of the application.

Referring to fig. 1 to 7, the present application provides an inner support device for a flexible pipe, which is installed in a flexible pipe 100, for supporting an inner wall of the flexible pipe 100 against deformation of an outer wall of the flexible pipe 100 due to compression, wherein the flexible pipe 100 in the present application mainly refers to a flexible pipe 100 having an inner diameter of more than 800mm, in which an inner support structure is required to be provided, and a pipe diameter of which is between 2.6m and 3m, having a larger diameter.

The application provides an inner supporting device for a flexible pipeline, which comprises:

The cross section of the supporting framework 200 is circular, wherein the supporting framework 200 with the circular cross section is convenient for installing structural components which can support the inner wall of the flexible pipeline 100 on the peripheral wall of the supporting framework 200 at equal intervals.

The telescopic assembly 300 comprises a plurality of telescopic members 301, and a first connecting seat 302 and a second connecting seat 303 which are respectively arranged at the fixed end and the telescopic end of each telescopic member 301, wherein the telescopic members 301 are detachably arranged on the peripheral wall of the supporting framework 200 at equal intervals through the first connecting seats 302, a bearing plate 400 which is matched with the shape of the flexible pipeline 100 is detachably arranged on each second connecting seat 303, and the telescopic members 301 are used for driving the bearing plate 400 to support the inner peripheral wall of the flexible pipeline 100. The fixed end of the telescopic piece 301 is detachably connected with the supporting framework 200 through the first connecting seat 302 thereon, and the telescopic end of the telescopic piece 301 is detachably connected with the supporting plate 400 through the second connecting seat 303 thereon, so that the inner supporting device for the flexible pipeline is convenient to detach and install. And the shape of the supporting plate 400 is matched with the shape of the flexible pipeline 100, so that the supporting plate 400 can be better attached to the inner wall of the flexible pipeline 100 to support the inner wall of the flexible pipeline 100. The number of the expansion and contraction members 301 may be set according to the actual conditions such as the diameter of the support frame 200, and the present application is not limited thereto.

According to the inner support device for the flexible pipeline, the first connecting seat 302 and the second connecting seat 303 are respectively arranged at the fixed end and the telescopic end of the telescopic piece 301, the telescopic pieces 301 are detachably arranged on the peripheral wall of the support frame 200 through the first connecting seat 302 on the telescopic piece at equal intervals, the second connecting seat 303 on the telescopic end of each telescopic piece 301 is detachably provided with the support plate 400, and further the support plate 400 is driven to support the inner wall of the flexible pipeline 100 through the telescopic of the telescopic piece 301. In addition, the arrangement of the telescopic piece 301 enables the inner supporting structure for the flexible pipeline 100 to be suitable for supporting the inner walls of the flexible pipelines 100 with different pipe diameters, so that the wide applicability of the inner supporting device for the flexible pipeline is improved.

In some embodiments, referring to fig. 1 to 3, a supporting framework 200 in the present application includes a first annular tube 201 and a second annular tube 202, specifically, the diameter of the first annular tube 201 is smaller than that of the second annular tube 202, a plurality of supporting rods 2011 are arranged on the outer peripheral wall of the first annular tube 201 at equal intervals, one ends of the plurality of supporting rods 2011 far from the first annular tube 201 are connected with the inner peripheral wall of the second annular tube 202, and the second annular tube 202 is detachably connected with a first connecting seat 302. The diameters of the first annular pipe 201 and the second annular pipe 202 may be set according to the pipe diameter of the flexible pipe 100, and the present application is not particularly limited herein.

In the above embodiment, one ends of the plurality of support rods 2011 are fixed on the outer peripheral wall of the first annular tube 201 at equal intervals, and the other ends of the plurality of support rods 2011 are fixed on the inner peripheral wall of the second annular tube 202, so as to form the support frame 200, and both ends of the support rods 2011 and the first annular tube 201 and the second annular tube 202 may be connected together by welding, but the present application is not limited thereto.

In some embodiments, referring to fig. 4, each first connection seat 302 in the present application is provided with a first threaded through hole 3021, the second annular tube 202 is provided with a first threaded hole 2021 corresponding to the first threaded through hole 3021, and the first connection seat 302 and the second annular tube 202 penetrate through the first threaded through hole 3021 through the screw end of the first fastening bolt 500 and are screwed in the first threaded hole 2021 to achieve detachable connection of the two. In order to improve the stability of the bolting of the first connecting seat 302 to the second annular tube 202, there may be a plurality of first threaded through holes 3021, and a plurality of first threaded holes 2021, where the plurality of first threaded holes 2021 corresponds to the plurality of first threaded through holes 3021 one by one. In addition, in order to ensure stability of the first fastening bolt 500 to the bolting of the first coupling seat 302 to the second annular tube 202, the thickness of the second annular tube 202 is greater than the length of the first fastening bolt 500 fully protruding into the first screw hole 2021.

In the above embodiment, the screw end of the first fastening bolt 500 penetrates through the first threaded through hole 3021 and is screwed into the first threaded hole 2021, and the screw head of the first fastening bolt 500 is tightly abutted against the first connection seat 302, so that the first connection seat 302 and the second annular tube 202 are fixed by the first fastening bolt 500, and the fixing manner is also convenient for disassembling the flexible pipe 100 after backfilling is finished, thereby improving convenience in installation and disassembly.

In some embodiments, referring to fig. 5, each second connection seat 303 in the present application is provided with a second threaded through hole 3031, the support plate 400 is provided with a second threaded hole 401 corresponding to the second threaded through hole 3031, and the second connection seat 303 and the support plate 400 penetrate the second threaded through hole 3031 through the screw end of the second fastening bolt 600 and are screwed in the second threaded hole 401 to realize detachable connection of the two. In order to improve the stability of the bolting of the second connecting seat 303 to the support plate 400, there may be a plurality of second threaded through holes 3031, and a plurality of second threaded holes 401, and the plurality of second threaded holes 401 are in one-to-one correspondence with the plurality of second threaded through holes 3031. In addition, in order to secure the stability of the second fastening bolt 600 to the bolting of the second coupling seat 303 to the bearing plate 400, the thickness of the bearing plate 400 is greater than the length of the second fastening bolt 600 fully inserted into the second screw hole 401.

In the above embodiment, the screw end of the second fastening bolt 600 penetrates through the second threaded through hole 3031 and is screwed in the second threaded hole 401, and the screw head of the second fastening bolt 600 is tightly propped against the second connecting seat 303, so that the second connecting seat 303 is fixed with the bolt of the bearing plate 400 by the second fastening bolt 600, and the fixing manner is also convenient for disassembling the flexible pipe 100 after backfilling is finished, thereby improving convenience in installation and disassembly.

In some embodiments, the thickness of the bearing plate 400 is 6mm to 10mm. The thickness of the support plate 400 is too large, which may cause a large self weight, be unfavorable for installation, disassembly, etc., and the thickness of the support plate 400 is too small, which may make the supporting effect on the inner wall of the flexible pipe 100 poor. That is, the thickness of the supporting plate 400 should be within a proper range, and the thickness of the supporting plate 400 is 6 mm-10 mm, so that the supporting plate 400 can better support the inner wall of the flexible pipe 100, and meanwhile, the supporting plate 400 is convenient to install, detach, and the like. The specific thickness of the support plate 400 may be set according to the actual use requirement, and thus the present application is not limited thereto.

In some embodiments, the carrier plate 400 of the present application is arcuate or rectangular. Since the flexible tubing 100 used in gravity drainage systems is primarily circular during actual use, there are also some special shapes of flexible tubing 100 to meet special needs, such as rectangular flexible tubing. In order to ensure that the support plate 400 supports the inner wall of the flexible pipe 100 better, the support plate 400 may be provided with an arc shape or a rectangular shape, so that the shape of the support plate 400 is matched with the shape of the flexible pipe 100, and one surface of the support plate 400 away from the expansion piece 301 is better attached to the inner wall of the flexible pipe 100, so that the support effect of the support plate 400 on the flexible pipe 100 is improved.

In some embodiments, referring to fig. 6, a buffer layer 402 is disposed on an outer surface of the support plate 400 far away from the expansion member 301, where the purpose of the buffer layer 402 is to avoid scratching the inner wall of the flexible pipe 100 while the support plate 400 supports the inner wall of the flexible pipe 100, and the buffer layer 402 may be made of rubber, silica gel, etc., and the specific material of the buffer layer 402 may be set according to actual needs, and the application is not limited thereto specifically.

The thickness of the buffer layer 402 is 2mm to 5mm. Wherein a greater thickness of cushioning layer 402 may block the forces exerted by carrier plate 100 on the inner wall of flexible pipe 100, while a lesser thickness of cushioning layer 402 may quickly wear out when the forces exerted by carrier plate 400 on the inner wall of flexible pipe 100 are greater, thereby failing to protect the inner wall of flexible pipe 100. Therefore, the thickness of the buffer layer 402 should be kept within a suitable range, and the thickness of the buffer layer 402 is between 2mm and 5mm, so that the inner wall of the flexible pipe 100 can be better supported. The specific thickness of the buffer layer 402 may be set according to the actual use requirement, and the present application is not limited thereto.

In some embodiments, the support frame 200 and the support plate 400 are made of high strength aluminum alloy. The high-strength aluminum alloy has the advantages of light weight, high strength, good corrosion resistance and excellent processability, so that the supporting framework 200 and the supporting plate 400 which are made of the high-strength aluminum alloy can improve the overall quality of the inner supporting device for the flexible pipeline, support the inner wall of the flexible pipeline 100, and simultaneously have the advantages of convenience in carrying, mounting, dismounting and the like.

In some embodiments, referring to fig. 7, the internal support device for flexible pipes in the present application further includes a PLC control system 700 disposed in the flexible pipe 100 near the support frame 200, wherein the PLC control system 700 mainly includes a Central Processing Unit (CPU), an input/output module (I/O), a memory, a communication interface, and a power module, and the like, and the present application is not specifically described herein. The internal support device for the flexible pipeline disclosed by the application is used for internal support in a backfilling process after the flexible pipeline 100 is installed, and an internal support structure in the flexible pipeline 100 needs to be removed after the backfilling process is finished and before the installed flexible pipeline 100 is used. Therefore, the liquid or the like flowing through the flexible pipe 100 does not affect the PLC control system 700.

In addition, the plurality of telescopic members 301 are all hydraulic jacks, the plurality of telescopic members 301 are all electrically connected with the PLC control system 700, and the PLC control system 700 is used for controlling the plurality of telescopic members 301 to synchronously stretch and retract so as to realize the support of the support plate 400 on the inner wall of the flexible pipeline 100. The hydraulic jack is a jack adopting a plunger or a hydraulic cylinder as a rigid jacking piece. The self-locking device has the characteristics of compact structure, stable work, large propping force, self-locking and the like. The hydraulic jack has strong jacking capability, and the jacking force of the heavy hydraulic jack exceeds 100t. The hydraulic jack can send hydraulic oil into the oil cylinder through a manual or electric pump in the actual use process to push the piston to lift, so that the lifting of the heavy object is realized.

In the above embodiment, when the plurality of expansion members 301 are hydraulic jacks and hydraulic oil is fed into the oil cylinder by the electric pump of the hydraulic jacks to push the piston to rise, the electric pump of the hydraulic jacks is electrically connected with the PLC control system 700, so that the synchronous expansion and contraction of the plurality of hydraulic jacks are controlled by the PLC control system 700 to support the inner wall of the flexible pipeline 100, the situation that the hydraulic oil is manually fed into the oil cylinder to push the piston to rise is avoided, and the hydraulic oil is fed into the oil cylinder by the electric pump of the hydraulic jacks electrically connected with the PLC control system 700 to push the piston to rise is avoided, so that the expansion and contraction efficiency of the expansion members 301 is improved.

It should be noted that the above embodiments are merely for illustrating the technical solution of the present application, and not for limiting the same, and although the present application has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solution described in the above embodiments may be modified or some or all of the technical features may be equivalently replaced, and these modifications or substitutions do not deviate the essence of the corresponding technical solution from the scope of the technical solution of the embodiments of the present application.

Claims (9)

1. An internal support device for a flexible pipe, installed in a flexible pipe (100), for supporting an inner wall of the flexible pipe (100) against deformation of an outer wall of the flexible pipe (100) due to compression, characterized by comprising:

A support skeleton (200), wherein the cross section of the support skeleton (200) is circular;

The telescopic assembly (300) comprises a plurality of telescopic pieces (301) and a first connecting seat (302) and a second connecting seat (303) which are respectively arranged at the fixed end and the telescopic end of each telescopic piece (301), wherein the telescopic pieces (301) are detachably arranged on the peripheral wall of the supporting framework (200) at equal intervals through the first connecting seats (302), a supporting plate (400) matched with the shape of the flexible pipeline (100) is detachably arranged on each second connecting seat (303), and the telescopic pieces (301) are used for driving the supporting plate (400) to support the inner peripheral wall of the flexible pipeline (100).

2. The internal support device for flexible pipes according to claim 1, characterized in that the support skeleton (200) comprises a first annular tube (201) and a second annular tube (202);

The diameter of first annular pipe (201) is less than the diameter of second annular pipe (202), equidistant a plurality of bracing pieces (2011) that are provided with on the peripheral wall of first annular pipe (201), a plurality of bracing pieces (2011) keep away from the one end of first annular pipe (201) all with the inner peripheral wall of second annular pipe (202) is connected, second annular pipe (202) with first connecting seat (302) can dismantle and be connected.

3. The internal support device for flexible pipes according to claim 2, wherein each first connecting seat (302) is provided with a first threaded through hole (3021), the second annular pipe (202) is provided with a first threaded hole (2021) corresponding to the first threaded through hole (3021), and the first connecting seat (302) and the second annular pipe (202) penetrate through the first threaded through hole (3021) through the screw end of a first fastening bolt (500) and are screwed in the first threaded hole (2021) to realize detachable connection of the first threaded through hole and the second threaded through hole.

4. The internal support device for flexible pipes according to claim 1, wherein each second connection seat (303) is provided with a second threaded through hole (3031), the support plate (400) is provided with a second threaded hole (401) corresponding to the second threaded through hole (3031), and the second connection seat (303) and the support plate (400) penetrate through the second threaded through hole (3031) through the screw end of a second fastening bolt (600) and are rotatably arranged in the second threaded hole (401) to realize detachable connection of the second connection seat and the support plate.

5. The internal support device for flexible pipes according to claim 1, wherein the thickness of the bearing plate (400) is 6mm to 10mm.

6. The internal support device for flexible pipes according to claim 1, characterized in that the carrier plate (400) is arc-shaped or rectangular.

7. The internal support device for flexible pipes according to claim 1, characterized in that the outer surface of the carrier plate (400) remote from the telescopic member (301) is provided with a buffer layer (402);

The thickness of the buffer layer (402) is 2 mm-5 mm.

8. The internal support device for flexible pipes according to any one of claims 1 to 7, wherein the support frame (200) and the support plate (400) are both made of a high-strength aluminum alloy material.

9. The internal support device for flexible pipes according to any of claims 1 to 7, further comprising a PLC control system (700) disposed within the flexible pipe (100) proximate to the support skeleton (200);

The telescopic parts (301) are hydraulic jacks, the telescopic parts (301) are electrically connected with the PLC control system (700), and the PLC control system (700) is used for controlling the telescopic parts (301) to synchronously stretch so as to support the inner wall of the flexible pipeline (100) by the support plate (400).