A pipe reinforcing device and method of reinforcing

Abstract

The application provides a pipeline reinforcing device and a reinforcing method, wherein the pipeline reinforcing device comprises a reinforcing rope, a tensioning device and an anchor, the reinforcing rope is arranged around the pipeline, the tensioning device is used for tensioning the reinforcing rope, and the tensioning device comprises a first clamp, a second clamp and a tensioning structure, the first clamp and the second clamp are oppositely arranged at two ends of the tensioning structure, two ends of the reinforcing rope are oppositely arranged, and the two ends of the reinforcing rope are connected with the first clamp and the second clamp respectively, and the anchor is used for fixing the tensioned reinforcing rope. The application can realize the reinforcement of the pipeline under the condition that water supply is not stopped, and the reinforcing time is short.

Description

Technical Field

[0001] This invention relates to the field of pipeline reinforcement technology, and in particular to a pipeline reinforcement device and reinforcement method. Background Technology

[0002] During long-term operation, factors such as environmental corrosion, hydrogen embrittlement, pipe manufacturing errors, pipe installation and construction, and material defects can cause prestressed steel wires in PCCP pipelines to break. If these breakages are not detected and repaired in time, they may lead to pipe bursts during operation, causing huge economic losses and social impact.

[0003] Common repair methods include external reinforcement and internal reinforcement. Internal reinforcement, while avoiding excavation and disruption to traffic around the pipeline, requires water outages for repairs, is time-consuming for large-area reinforcement, and necessitates sufficient time for the fiber cloth to bond properly after application. External reinforcement allows for pipeline reinforcement without interrupting water supply and is suitable for trunk line projects where interruption is not permitted. This primarily includes external steel strand reinforcement. In this method, the PCCP pipeline is first exposed through excavation, and steel strands are then wrapped around the broken wire areas for reinforcement. However, the steel strands, being embedded in the soil for extended periods, are susceptible to environmental corrosion, which negatively impacts the long-term performance of the reinforced PCCP pipeline.

[0004] Utility model CN207555004U discloses a prestressed reinforcement structure for PCCP pipelines, including a pipeline, steel strands wound around the outer circumference of the pipeline, a pad plate disposed on the pipeline, and an anchoring part disposed on the pad plate. The anchoring part has a first side and a second side distributed sequentially along the circumference of the pipeline. The anchoring part is provided with a bottom groove, a first through hole, and a second through hole. The steel strand includes a first part, a second part, and a third part connected sequentially. The first part passes through the first through hole from the first side and wraps around the pipeline, the second part passes through the bottom groove from the first side and wraps around the pipeline, and the third part passes through the second through hole from the first side. However, the above-mentioned utility model uses steel strands to reinforce PCCP pipelines. Long-term placement of the steel strands in the soil will result in environmental corrosion and a short service life. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of the prior art by providing a pipeline reinforcement device and method that enables pipeline reinforcement without interrupting water supply and with a short reinforcement time.

[0006] To achieve the above objectives, in a first aspect, the present invention provides a pipeline reinforcement device, comprising a reinforcement rope, a tensioning device, and an anchor. The reinforcement rope is used to be wound around the pipeline, and the tensioning device is used to tighten the reinforcement rope. The device includes a first clamp, a second clamp, and a tensioning structure. The first clamp and the second clamp are disposed opposite to each other at both ends of the tensioning structure. The two ends of the reinforcement rope are disposed opposite to each other and are respectively connected to the first clamp and the second clamp. The anchor is used to fix the tightened reinforcement rope.

[0007] Optionally, the reinforcing rope is made of fiber-reinforced composite material.

[0008] Optionally, the tensioning structure includes a screw and at least two nuts. The first clamp and the second clamp are respectively movably disposed at both ends of the screw. The nuts are movably disposed on the screw between the first clamp and the second clamp and are used to contact the first clamp or the second clamp, so that the first clamp and the second clamp move in opposite directions.

[0009] Optionally, both the first clamp and the second clamp include a first clamping plate and a second clamping plate, which cooperate to clamp the reinforcing rope.

[0010] Optionally, bolt grooves are provided on both opposite surfaces of the first clamping plate and the second clamping plate. The bolt grooves match the shape of the screw, and the two ends of the screw are movably connected to the first clamp and the second clamp respectively through the bolt grooves.

[0011] Optionally, the first clamping plate and the second clamping plate are further provided with corresponding first clamping grooves on their opposite surfaces.

[0012] Optionally, the first clamping plate and the second clamping plate are connected by a first bolt.

[0013] Optionally, the anchor includes a third clamp and a fourth clamp, which cooperate to clamp and fix the reinforcing rope.

[0014] Optionally, the third and fourth clamping plates are connected by a second bolt.

[0015] Secondly, the present invention also provides a reinforcement method based on the above-mentioned pipeline reinforcement device, comprising the following steps:

[0016] (1) Wrap the reinforcing rope around the pipe at least once;

[0017] (2) Place the anchor between the reinforcing rope and the pipe, and clamp the first clamp and the second clamp to fix the two ends of the reinforcing rope respectively;

[0018] (3) The first clamp and the second clamp are engaged by the tensioning structure to tighten the reinforcing rope;

[0019] (4) Secure the taut reinforcing rope with anchors and remove both ends of the reinforcing rope from the first clamp and the second clamp.

[0020] Beneficial effects:

[0021] 1. This invention, by setting up a reinforcing rope, a tensioning device, and an anchor, wherein the tensioning device includes a first clamp, a second clamp, and a tensioning structure, the reinforcing rope is wound around the pipeline once, the first clamp and the second clamp respectively clamp the two ends of the reinforcing rope, the tensioning structure enables the first clamp and the second clamp to cooperate in tightening the reinforcing rope, and the anchor fixes the tightened reinforcing rope, which enables pipeline reinforcement construction without stopping water supply, can be used for trunk line projects where water supply interruption is not allowed, and the reinforcement and repair time is shorter compared with internal reinforcement methods.

[0022] 2. The reinforcing rope in this invention is made of fiber-reinforced composite material, which, compared with the steel strands used in the prior art, can avoid environmental corrosion and is beneficial to the long-term service performance of the reinforced pipeline. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the tensioning device and the reinforcing rope working together in the pipeline reinforcement device disclosed in this invention;

[0025] Figure 2 This is a schematic diagram of the tensioning device in the pipeline reinforcement device disclosed in this invention;

[0026] Figure 3 This is a schematic diagram of the anchor and reinforcement rope working together in the pipeline reinforcement device disclosed in this invention.

[0027] Reference numerals: 1 Reinforcing rope; 2 First clamp; 3 Second clamp; 4 First clamping plate; 5 Second clamping plate; 6 Bolt groove; 7 First clamping groove; 8 First bolt; 9 Tensioning structure; 10 Screw; 11 Nut; 12 Third clamping plate; 13 Fourth clamping plate; 14 Second clamping groove; 15 Second bolt.

[0028] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0031] In the description of this invention, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] Example 1:

[0033] See Figure 1-3 According to a first embodiment of the present invention, a pipe reinforcement device includes a reinforcement rope 1, a tensioning device, and an anchor. The reinforcement rope 1 is used to be wound around a pipe. The tensioning device is used to tighten the reinforcement rope 1 and includes a first clamp 2, a second clamp 3, and a tensioning structure 9. The first clamp 2 and the second clamp 3 are arranged opposite to each other at both ends of the tensioning structure 9. The two ends of the reinforcement rope 1 are arranged opposite to each other and are respectively connected to the first clamp 2 and the second clamp 3. The anchor is used to fix the tightened reinforcement rope 1.

[0034] Specifically, the pipeline is a prestressed steel cylinder concrete pipe, etc. A reinforcing rope 1 is wrapped around the pipeline once, and its two ends are placed in the first clamp 2 and the second clamp 3 respectively, so that the two ends of the reinforcing rope 1 are clamped by the first clamp 2 and the second clamp 3 respectively. After the two ends of the reinforcing rope 1 are clamped, anchors are installed. At this time, the anchors do not fix the reinforcing rope 1. The tensioning structure 9 tensions the reinforcing rope by moving the first clamp 2 and the second clamp 3 in opposite directions. After the reinforcing rope is tensioned, the reinforcing rope 1 is fixed by the anchors, and the first clamp 2 and the second clamp 3 are removed. Preferably, two reinforcing ropes 1 are used as a group to reinforce the pipeline, but it is not limited to two ropes. The number of reinforcing ropes in each group of reinforcement devices can be adjusted according to actual needs. The reinforcement device also includes a sensor installed on the reinforcing rope 1 for detecting the tension of the reinforcing rope 1. The sensor is a strain gauge, which can monitor the strain of the reinforcing rope 1 to ensure that the reinforcing rope 1 is tensioned during the tensioning process.

[0035] See Figure 1 and 3 In some embodiments of the present invention, the reinforcing rope 1 is made of fiber-reinforced composite material. Compared to the prior art that uses steel strands to reinforce pipelines, the present invention uses a reinforcing rope made of fiber-reinforced composite material to reinforce pipelines, which can avoid environmental corrosion and is beneficial to the long-term service performance of the reinforced pipeline. Fiber-reinforced composite materials include glass fiber reinforced composite materials, carbon fiber reinforced composite materials, and aramid fiber reinforced composite materials, etc.

[0036] See Figure 1 and 2 In some embodiments of the present invention, the tensioning structure 9 includes a screw 10 and at least two nuts 11. The first clamp 2 and the second clamp 3 are respectively movably disposed at both ends of the screw 10. The nuts 11 are movably disposed on the screw 10 between the first clamp 2 and the second clamp 3 and are used to contact the first clamp 2 or the second clamp 3, so that the first clamp 2 and the second clamp 3 move in opposite directions.

[0037] Preferably, each tensioning device includes two parallel tensioning structures 9, namely, two parallel screws 10, and two nuts 11 movably mounted on each screw 10. A first clamp 2 and a second clamp 3 are movably mounted at both ends of the two parallel screws 10. The two nuts 11 on each screw 10 are positioned between the first clamp 2 and the second clamp 3, and each nut 11 corresponds to the first clamp 2 / second clamp 3. By turning the nuts 11, the nuts 11 move on the screw 10, thereby causing the first clamp 2 / second clamp 3 to move on the screw 10, thus tightening or loosening the reinforcing rope 1.

[0038] See Figure 1 and 2In some embodiments of the present invention, both the first clamp 2 and the second clamp 3 include a first clamping plate 4 and a second clamping plate 5, which cooperate to clamp the reinforcing rope 1. The reinforcing rope 1 is placed between the first clamping plate 4 and the second clamping plate 5, and the first clamping plate 4 and the second clamping plate 5 are pressed together, so that the two ends of the reinforcing rope 1 are respectively clamped on the first clamp 2 and the second clamp 3.

[0039] See Figure 1 and 2 In some embodiments of the present invention, bolt grooves 6 are provided on the two opposite surfaces of the first clamping plate 4 and the second clamping plate 5. The bolt grooves 6 are matched with the shape of the screw 10, and the two ends of the screw 10 are movably connected to the first clamp 2 and the second clamp 3 respectively through the bolt grooves 6.

[0040] There are two screws 10, and each clamp plate is also provided with two bolt slots 6 in corresponding number and position. The bolt slots 6 on the first clamp plate 4 and the bolt slots 6 on the corresponding second clamp plate 5 combine to form a bolt hole. The two ends of each screw 10 pass through the bolt holes formed on the first clamp 2 and the second clamp 3 respectively, so that the first clamp 2 and the second clamp 3 are movably located at the two ends of the two screws 10.

[0041] See Figure 1 and 2 In some embodiments of the present invention, the first clamping plate 4 and the second clamping plate 5 are provided with corresponding first clamping grooves 7 on their opposite sides. The reinforcing rope 1 is placed in the corresponding first clamping grooves 7 provided on the first clamping plate 4 and the second clamping plate 5. The size of the first clamping groove 7 is flexibly adjusted according to the diameter of the reinforcing rope 1.

[0042] See Figure 1 and 2 In some embodiments of the present invention, the first clamping plate 4 and the second clamping plate 5 are connected by a first bolt 8, and the first clamping plate 4 is pressed onto the second clamping plate 5 by the first bolt 8, thereby achieving the clamping and fixing of the reinforcing rope 1.

[0043] See Figure 3 In some embodiments of the present invention, the anchor includes a third clamping plate 12 and a fourth clamping plate 13, which cooperate to clamp and fix the reinforcing rope 1.

[0044] See Figure 3In some embodiments of the present invention, the third clamping plate 12 and the fourth clamping plate 13 are connected by a second bolt 15. Second clamping grooves 14 are correspondingly provided on two opposite surfaces of the third clamping plate 12 and the fourth clamping plate 13. The third clamping plate 12 and the fourth clamping plate 13 are locked together by the second bolt 15, and the reinforcing rope 1 is placed in the corresponding second clamping grooves 14 on the third clamping plate 12 and the fourth clamping plate 13 for fixation. The positions of the first clamping grooves 7 on the first clamp 2 and the second clamp 3 correspond to the positions of the second clamping grooves 14 on the anchor.

[0045] Example 2:

[0046] See Figure 1-3 According to a second embodiment of the present invention, a reinforcement method based on the above-described reinforcement device includes the following steps:

[0047] (1) Wrap the reinforcing rope 1 around the pipe at least once;

[0048] (2) Place the anchor between the reinforcing rope 1 and the pipe, and clamp the first clamp 2 and the second clamp 3 to fix the two ends of the reinforcing rope 1 respectively;

[0049] (3) The first clamp 2 and the second clamp 3 are used to tighten the reinforcing rope 1 by means of the tensioning structure 9;

[0050] (4) Secure the taut reinforcing rope 2 with anchors and remove both ends of the reinforcing rope 1 from the first clamp 2 and the second clamp 3.

[0051] The specific steps of the reinforcement method are as follows:

[0052] Two reinforcing ropes 1 form a group, and the two reinforcing ropes 1 are wrapped around the pipe at least once; strain gauges are placed on the reinforcing ropes 1 for monitoring their strain during the tensioning process;

[0053] Place the fourth clamping plate 13 between the reinforcing rope 1 and the pipe, and place the reinforcing rope 1 in the second clamping groove 14 of the fourth clamping plate 13; and place the two ends of the two reinforcing ropes 1 in the first clamping grooves 7 of the first clamp 2 and the second clamp 3 respectively.

[0054] The first clamp 2 and the second clamp 3 are locked together using the first bolt 8. At this time, both ends of the reinforcing rope 1 are locked onto the first clamp 2 and the second clamp 3. The two screws 10 pass through the first clamp 2 and the second clamp 3 respectively. Two nuts 11 are screwed onto each screw 10. The nuts 11 are located between the first clamp 2 and the second clamp 3.

[0055] Tighten the nuts 11 on the screw 10 alternately to tension the first clamp 2 and the second clamp 3 in opposite directions until the strain of the reinforcing rope 1 reaches the design value, then stop tensioning;

[0056] Tension the reinforcing rope 1, press the third clamp 12 onto the fourth clamp 13, and use the second bolt 15 to connect the third clamp 12 and the fourth clamp 13 together. At this time, the reinforcing rope 1 is locked to the anchor. After anchoring the reinforcing rope 1 with the anchor, remove the tensioning device.

[0057] Repeat the above specific steps to install multiple reinforcement devices on the pipeline until the number of reinforcement ropes on the pipeline reaches the design value.

[0058] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A pipe reinforcement device, characterized in that, The device includes a reinforcing rope, a tensioning device, and an anchor. The reinforcing rope is made of fiber-reinforced composite material and is used to wrap around the outer circumference of a pipe at least once. The tensioning device is used to tighten the reinforcing rope and includes a first clamp, a second clamp, and two parallel tensioning structures. Each tensioning structure includes a screw and at least two nuts. The first and second clamps are positioned opposite each other at the ends of two parallel screws and each includes a first clamping plate and a second clamping plate. The two opposite surfaces of the first and second clamping plates have corresponding first clamping grooves. The two ends of the reinforcing rope are positioned opposite each other and clamped in the two first clamping grooves respectively. The nuts are movably disposed on the screw between the first and second clamps and are used to abut against the first or second clamp, causing the first and second clamps to move in opposite directions. The anchor includes a third clamp and a fourth clamp. The two opposite surfaces of the third and fourth clamps have corresponding second clamping grooves. The anchor is placed between the reinforcing rope and the pipe to clamp and fix the tightened reinforcing rope.

2. The pipeline reinforcement device according to claim 1, characterized in that, The fiber-reinforced composite material is a glass fiber-reinforced composite material, a carbon fiber-reinforced composite material, or an aramid fiber-reinforced composite material.

3. The pipeline reinforcement device according to claim 1, characterized in that, Bolt grooves are provided on both opposite sides of the first clamping plate and the second clamping plate. The bolt grooves match the shape of the screw. The two ends of the screw are movably connected to the first clamping fixture and the second clamping fixture respectively through the bolt grooves.

4. The pipeline reinforcement device according to claim 3, characterized in that, The first clamping plate and the second clamping plate are connected by the first bolt.

5. The pipeline reinforcement device according to claim 1, characterized in that, The third and fourth clamping plates are connected by a second bolt.

6. The pipeline reinforcement device according to claim 1, characterized in that, The reinforcing ropes are in pairs and are used to reinforce the pipeline.

7. The pipeline reinforcement device according to claim 1, characterized in that, It also includes a sensor mounted on the reinforcing rope, the sensor being used to detect the tension of the reinforcing rope.

8. The pipeline reinforcement device according to claim 7, characterized in that, The sensor is a strain gauge.

9. The pipeline reinforcement device according to claim 1, characterized in that, The positions of the first clamping grooves on the first and second clamps correspond to the positions of the second clamping grooves on the anchor.

10. A reinforcement method based on the pipeline reinforcement device according to any one of claims 1-9, characterized in that, Includes the following steps: (1) Wrap the reinforcing rope around the pipe at least once; (2) Place the anchor between the reinforcing rope and the pipe, and place both ends of the reinforcing rope in the first clamping groove of the first clamp and the second clamp respectively. The two ends of the reinforcing rope are clamped and fixed by the cooperation of the first clamp and the second clamp. (3) By turning the nut on the screw, the first clamp and the second clamp move in opposite directions to tighten the reinforcing rope until the strain of the reinforcing rope reaches the design value; (4) Press the third clamping plate onto the fourth clamping plate, connect the third clamping plate and the fourth clamping plate with the second bolt, fix the reinforcing rope in the second clamping groove, and remove the two ends of the reinforcing rope from the first clamp and the second clamp.

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