The present disclosure relates to an automatic wrapping apparatus and a method for repairing pipelines using fibre reinforced polymer composite material using the apparatus.

BACKGROUND

Generally, Pipelines are employed in wide range of residential, commercial, and industrial applications for distributing and transporting water, steam, chemicals, petrochemicals, crude oil, natural gas, and a variety of other liquids, gases, and components. However, over a period of time, such pipelines are susceptible to failures and damages which may occur due to mechanical stress, erosion, corrosion, failing insulation, adverse operating conditions, and so on. A conventional method of repairing such pipelines is to cut out the damaged pipeline segment and performing welding of a sleeve or a steel patch to strengthen the corroded portion or laying an entirely new pipeline. However, with the introduction of polymer composite repair technique, the repair of pipelines became less labor intensive and time consuming. The composite repair of pipelines involves In-situ wet layup of fiber reinforced polymer over the damaged section or application of prepregs. Such methods involve extensive manual hand lay-up technique. Therefore, such methods , are cumbersome, less efficient, time consuming and often repeatability in quality & performance is missing.

There is a need of automation of the repair procedure so as to eliminate disadvantages of conventional manual process of composite repair of pipelines through handlayup technique

OBJECTIVES OF THE INVENTION
The main objective of the present disclosure is to design and develop an automatic wrapping apparatus for performing automated composite wrapping by using fiber reinforced polymer wraps.
Another objective of the present disclosure of the present disclosure is to achieve optimum tension while performing wrapping on the pipelines with different diameters.
Yet another objective of the present disclosure is to perform pre-wetting of fibers with resins and removing excess of the resin during wrapping using the automatic wrapping apparatus.

SUMMARY

This summary is provided to introduce a selection of concepts, in a simplified format, that are further described in the detailed description of the invention. This summary is neither intended to identify key or essential inventive concepts of the invention and nor is it intended for determining the scope of the invention.

In an embodiment of the present disclosure, an automatic wrapping apparatus for repairing pipelines is disclosed. The automatic pipeline wrapping apparatus includes a fixed ring assembly adapted to be coupled around a portion of a pipeline to be repaired. Further, the automatic pipeline apparatus includes a moving ring assembly movably coupled to the first ring assembly and adapted to be rotated around a circumference of the pipeline. Rotation of the moving ring assembly is guided by the fixed ring assembly around the circumference of the pipeline. The automatic pipeline apparatus includes a plurality of rods coupled to the moving ring assembly. One of the plurality of rods is adapted to mount a fiber spool to be wrapped around the portion of the pipeline. Further, the automatic pipeline apparatus includes a driving unit attached to the moving ring assembly and adapted to be movably engaged with the fixed ring assembly. The driving unit is adapted to rotate the moving ring assembly to unwrap fiber from the fiber spool mounted on the plurality of rods.

In an embodiment of the present disclosure, a method for repairing pipelines using an automatic wrapping apparatus is disclosed. The method includes attaching the automatic wrapping apparatus on the pipeline. Further, the method includes positioning a first fixed ring on a first end of a portion of the pipeline to be repaired, a second fixed ring on a second end of the portion of the pipeline, a first movable ring on the first fixed ring, and a second movable ring on the second fixed ring. Further, the method includes connecting the first movable ring with the second movable ring via a plurality of rods. The method includes mounting a rod from among the plurality of rods between the first movable ring and the second movable ring. The rod is provided with a fiber spool to wrap the portion of the pipeline with fiber. Further, the method includes operating a power source to rotate the first movable ring and the second movable ring to unwrap the fiber from the fiber spool. The method includes wetting the fiber unwrapped from the fiber spool with polymer resin. Further, the method includes distributing the polymer resin over the fiber by rolling a roller on the fiber. Furthermore, the method includes cutting the fiber wrapped on the portion of the pipeline from the fiber spool positioned on the rod upon wrapping a plurality of layers of fiber on the portion.

To further clarify advantages and features of the present invention, a more particular description of the invention will be rendered by reference to specific embodiments thereof, which is illustrated in the appended drawings. It is appreciated that these drawings depict only typical embodiments of the invention and are therefore not to be considered limiting of its scope. The invention will be described and explained with additional specificity and detail with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

These and other features, aspects, and advantages of the present invention will become better understood when the following detailed description is read with reference to the accompanying drawings in which like characters represent like parts throughout the drawings, wherein:

Figure 1a illustrates an isometric view of an automatic pipeline wrapping apparatus for repairing pipelines, according to an embodiment of the present disclosure;

Figure 1b illustrates an isometric of the automatic pipeline wrapping apparatus attached to a pipeline for performing a repairing operation, according to an embodiment of the present disclosure;

Figure 1c illustrates a front view of the automatic pipeline wrapping apparatus attached to the pipeline for performing the repairing operation, according to an embodiment of the present disclosure;

Figure 2 illustrates an isometric view of a fixed ring assembly of the automatic pipeline wrapping apparatus, according to an embodiment of the present disclosure;

Figure 3 illustrates an isometric view of a moving ring assembly of the automatic pipeline wrapping apparatus, according to an embodiment of the present disclosure;

Figure 4 illustrates an isometric view of the automatic pipeline wrapping apparatus depicting a roller assembly, according to an embodiment of the present disclosure; and

Figure 5 illustrates a flowchart depicting a method for repairing pipelines using the automatic wrapping apparatus, according to an embodiment of the present disclosure.

Further, skilled artisans will appreciate that elements in the drawings are illustrated for simplicity and may not have been necessarily been drawn to scale. For example, the flow charts illustrate the method in terms of the most prominent steps involved to help to improve understanding of aspects of the present invention. Furthermore, in terms of the construction of the device, one or more components of the device may have been represented in the drawings by conventional symbols, and the drawings may show only those specific details that are pertinent to understanding the embodiments of the present invention so as not to obscure the drawings with details that will be readily apparent to those of ordinary skill in the art having benefit of the description herein.

DETAILED DESCRIPTION OF FIGURES

For the purpose of promoting an understanding of the principles of the invention, reference will now be made to the embodiment illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended, such alterations and further modifications in the illustrated system, and such further applications of the principles of the invention as illustrated therein being contemplated as would normally occur to one skilled in the art to which the invention relates. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skilled in the art to which this invention belongs. The system, methods, and examples provided herein are illustrative only and not intended to be limiting.

The term “some” as used herein is defined as “none, or one, or more than one, or all.” Accordingly, the terms “none,” “one,” “more than one,” “more than one, but not all” or “all” would all fall under the definition of “some.” The term “some embodiments” may refer to no embodiments or to one embodiment or to several embodiments or to all embodiments. Accordingly, the term “some embodiments” is defined as meaning “no embodiment, or one embodiment, or more than one embodiment, or all embodiments.”

The terminology and structure employed herein is for describing, teaching and illuminating some embodiments and their specific features and elements and does not limit, restrict or reduce the spirit and scope of the claims or their equivalents.

More specifically, any terms used herein such as but not limited to “includes,” “comprises,” “has,” “consists,” and grammatical variants thereof do NOT specify an exact limitation or restriction and certainly do NOT exclude the possible addition of one or more features or elements, unless otherwise stated, and furthermore must NOT be taken to exclude the possible removal of one or more of the listed features and elements, unless otherwise stated with the limiting language “MUST comprise” or “NEEDS TO include.”

Whether or not a certain feature or element was limited to being used only once, either way it may still be referred to as “one or more features” or “one or more elements” or “at least one feature” or “at least one element.” Furthermore, the use of the terms “one or more” or “at least one” feature or element do NOT preclude there being none of that feature or element, unless otherwise specified by limiting language such as “there NEEDS to be one or more . . . ” or “one or more element is REQUIRED.”

Unless otherwise defined, all terms, and especially any technical and/or scientific terms, used herein may be taken to have the same meaning as commonly understood by one having an ordinary skill in the art.

Reference is made herein to some “embodiments.” It should be understood that an embodiment is an example of a possible implementation of any features and/or elements presented in the attached claims. Some embodiments have been described for the purpose of illuminating one or more of the potential ways in which the specific features and/or elements of the attached claims fulfil the requirements of uniqueness, utility and non-obviousness.

Use of the phrases and/or terms such as but not limited to “a first embodiment,” “a further embodiment,” “an alternate embodiment,” “one embodiment,” “an embodiment,” “multiple embodiments,” “some embodiments,” “other embodiments,” “further embodiment”, “furthermore embodiment”, “additional embodiment” or variants thereof do NOT necessarily refer to the same embodiments. Unless otherwise specified, one or more particular features and/or elements described in connection with one or more embodiments may be found in one embodiment, or may be found in more than one embodiment, or may be found in all embodiments, or may be found in no embodiments. Although one or more features and/or elements may be described herein in the context of only a single embodiment, or alternatively in the context of more than one embodiment, or further alternatively in the context of all embodiments, the features and/or elements may instead be provided separately or in any appropriate combination or not at all. Conversely, any features and/or elements described in the context of separate embodiments may alternatively be realized as existing together in the context of a single embodiment.

Any particular and all details set forth herein are used in the context of some embodiments and therefore should NOT be necessarily taken as limiting factors to the attached claims. The attached claims and their legal equivalents can be realized in the context of embodiments other than the ones used as illustrative examples in the description below.

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

Figure 1a illustrates an isometric view of an automatic pipeline wrapping apparatus 100 for repairing pipelines, according to an embodiment of the present disclosure. In an embodiment, the automatic pipeline wrapping apparatus 100 may be employed for repairing pipelines used for transporting fluids including, but not limited to, oil, gas and water. The automatic pipeline wrapping apparatus 100 may interchangeably be referred to as the automatic wrapping apparatus 100, without departing from the scope of the present disclosure. In an embodiment, the automatic wrapping apparatus 100 may be mounted on a portion of the pipeline which requires repairing and maintenance. The automatic wrapping apparatus 100 may be employed for repairing the pipeline by wrapping a composite material around the portion of the pipeline which requires repairing and maintenance. In one example, the composite material may include, but is not limited to, a fibre Reinforced Polymer (FRP).

Figure 1b illustrates another isometric view of the automatic wrapping apparatus 100 attached to a pipeline 112 for performing a repairing operation, according to an embodiment of the present disclosure. Figure 1c illustrates a front view of the automatic wrapping apparatus 100 attached to the pipeline 112 for performing the repairing operation, according to an embodiment of the present disclosure. Referring to Figure 1a, Figure 1b, and Figure 1c, the automatic wrapping apparatus 100 may include, but is not limited to, a fixed ring assembly 102, a moving ring assembly 104, a plurality of rods 106, and a driving unit 107. In an embodiment, the driving unit 107 may include, but is not limited to, a gearbox assembly 108 and a power source (not shown) adapted to drive the gearbox assembly 108. The driving unit 107 may be attached to the moving ring assembly 104 and adapted to be movably engaged with the fixed ring assembly 102.

Figure 2 illustrates an isometric view of the fixed ring assembly 102 of the automatic wrapping apparatus 100, according to an embodiment of the present disclosure. The fixed ring assembly 102 may be adapted to be coupled around a portion of the pipeline 112 to be repaired. Referring to Figure 1a, Figure 1b, Figure 1c, and Figure 2, in an embodiment, the fixed ring assembly 102 may include a first fixed ring 102-1 and a second fixed ring 102-2. The fixed ring assembly 102 may interchangeably be referred to as the fixed rings 102-1, 102-2, without departing from the scope of the present disclosure. In an embodiment, the first fixed ring (102-1) and the second fixed ring (102-2) may be adapted to be coupled to a first end 112-1 and a second end 112-2, respectively, of the portion of the pipeline. The first fixed ring 102-1 may consist of a first half portion 202-1 and a second half portion 202-2 removably coupled to the first half portion 202-1. Similarly, the second fixed ring 102-2 may consist of a first half portion 204-1 and a second half portion 204-2 removably coupled to the first half portion 204-1.

In an embodiment, each of the first fixed ring 102-1 and the second fixed ring 102-2 may be supported on the pipeline 112 using equally spaced supporting screws. The automatic wrapping apparatus 100 may be able to repair a range of pipeline diameters which are less than the diameter of the fixed rings 102-1, 102-2. For smaller diameter pipelines, a length of the supporting screws has to be increased for each of the first fixed ring 102-1 and the second fixed ring 102-2.

In an embodiment, the first fixed ring 102-1 may be mounted on the pipeline 112 by coupling the first half portion 202-1 of the first fixed ring 102-1 with the second half portion 202-2 of the first fixed ring 102-1 through fasteners, such as screws. Similarly, the second fixed ring 102-2 may be mounted on the pipeline 112 by coupling the first half portion 204-1 of the second fixed ring 102-2 with the second half portion 204-2 of the second fixed ring 102-2 through fasteners, such as screws. Each of the first fixed ring 102-1 and the second fixed ring 102-2 may be provided with a groove 206 adapted to support the moving ring assembly 104 and to guide rotation of the moving ring assembly 104 around the circumference of the pipeline 112. In an embodiment, the groove 206 of the first fixed ring 102-1 may be formed along a circumference of the first fixed ring 102-1. Similarly, the groove 206 of the second fixed ring 102-2 may be formed along a circumference of the second fixed ring 102-2. Further, the first fixed ring 102-1 may be provided with a gear 208 adapted to be engaged with the gearbox assembly 108 of the driving unit 107.

Figure 3 illustrates an isometric view of the moving ring assembly 104 of the automatic wrapping apparatus 100, according to an embodiment of the present disclosure. The moving ring assembly 104 may be movably coupled to the fixed ring assembly 102 and adapted to be rotated around the circumference of the pipeline 112. As explained earlier, rotation of the moving ring assembly (104) may be guided by the fixed ring assembly 102 around the circumference of the pipeline 112. In an embodiment, the moving ring assembly 104 may include a first moving ring 104-1 and a second moving ring 104-2. The moving ring assembly 104 may interchangeably be referred to as the moving rings 104-1, 104-2, without departing from the scope of the present disclosure.

In an embodiment, the first moving ring 104-1 and the second moving ring 104-2 may be adapted to be connected with each other through the plurality of rods 106 (as shown in Figures 1a-1c). The plurality of rods 106 may extend parallel to an axis X-X’ of the pipeline 112. The first moving ring 104-1 and the second moving ring 104-2 may be adapted to be connected with each other through the plurality of rods 106. The plurality of rods 106 may be adapted to transmit rotational movement of the first moving ring 104-1 to the second moving ring 104-2.

Each of the first moving ring 104-1 and the second moving ring 104-2 may consist of a first half portion and a second half portion removably coupled to the first half portion. In an embodiment, the first half portion and the second half portion of the first moving ring 104-1 may be coupled with each other through fasteners to form the first moving ring 104-1. Similarly, the first half portion and the second half portion of the second moving ring 104-2 may be coupled with each other through fasteners to form the second moving ring 104-2. The first moving ring 104-1 and the second moving ring 104-2 may be adapted to be movably coupled to the first fixed ring 102-1 and the second fixed ring 102-2, respectively.

The first moving ring 104-1 and the second moving ring 104-2 may include a plurality of first rollers 302-1 and a plurality of second rollers 302-2, respectively. The plurality of first rollers 302-1 may be movably accommodated within the groove 206 provided in the first fixed ring 102-1. Similarly, the plurality of second rollers 302-2 may be movably accommodated within the groove 206 provided in the second fixed ring 102-2. In an embodiment, the first moving ring 104-1 may be coupled to the first fixed ring 102-1 in a manner that each of the plurality of first rollers 302-1 may be movably accommodated within the groove 206 provided in the first fixed ring 102-1. Similarly, the second moving ring 104-2 may be coupled to the second fixed ring 102-2 such that each of the plurality of second rollers 302-2 may be movably accommodated within the groove 206 provided in the second fixed ring 102-2.

In an embodiment, the first moving ring 104-1 may include a gearbox housing (not shown) adapted to support the gearbox assembly 108. The gearbox assembly 108 may interchangeably be referred as gearbox 108, without departing from the scope of the present disclosure. The gearbox 108 may be adapted to be coupled to the first moving ring 104-1 to rotate the first moving ring 104-1 around the circumference of the pipeline 112. The gearbox 108 may be adapted to rotate the first moving ring 104-1 over the first fixed ring 102-1 mounted on the pipeline 112 such that the plurality of first rollers 302-1 moves within the groove 206 of the first fixed ring 102-1. Further, the plurality of rods 106 may be coupled to the moving ring assembly 104). One of the plurality of rods 106 may be adapted to mount a fiber spool to be wrapped around the portion of the pipeline 112 for repairing which is explained in later sections of the present disclosure. In particular, the first moving ring 104-1 and the second moving ring 104-2 may be coupled through the plurality of rods 106 such that rotational movement of the first moving ring 104-1 may result in rotation of the second moving ring 104-2 on the second fixed ring 102-2.

Figure 4 illustrates an isometric view of the automatic wrapping apparatus 100 depicting a roller assembly 400, according to an embodiment of the present disclosure. In an embodiment, the roller assembly 400 may include a roller 401, a plurality of torsion springs, and a plurality of connecting links 403. The roller 401 may be coupled to the moving ring assembly 104 of the automatic wrapping apparatus 100. The roller 401 may be adapted to be pressed against the pipeline 112 via the plurality of torsion springs to perform a rolling operation for uniform wetting of fibres. Each of the plurality of torsion springs may be enclosed in a housing 402 positioned on one of the plurality of rods 106 of the automatic wrapping apparatus 100. Each of the plurality of torsion springs may be connected to the roller 401 via a connecting link 403.

In an embodiment, the gearbox 108 may include a compound gear train adapted to be engaged with the gear 208 provided in the first fixed ring 102-1. In an embodiment, the gearbox 108 may be connected to a power source (not shown) adapted to drive the gearbox 108. The power source may be embodied as a servo motor, such as Direct Current (DC) servo motor, without departing from the scope of the present disclosure. A power input from the DC servo motor may be delivered to the moving rings 104-1, 104-2 through the gearbox 108. In an example, the automatic wrapping apparatus completes one-layer wrapping in approximately 2 minutes for the pipeline having a 12-inch diameter.

Further, as explained earlier, the first moving ring 104-1 and the second moving ring 104-2 may be connected with each other through the plurality of rods 106 parallel to the axis X-X’ of the pipeline 112. The plurality of rods 106 may interchangeably be referred to as the rods 106, without departing from the scope of the present disclosure. In an embodiment, one of the rods 106, interchangeably referred as mounting rod 106-1, may be employed for mounting a fibre spool which is to be used for wrapping a damaged portion of the pipeline 112. The driving unit 107 may be adapted to rotate the moving ring assembly 104 to unwrap fibre mat from the fibre spool mounted on the mounting rod 106-1. The mounting rod 106-1 may be connected to the gearbox 108 of the driving unit 107. The gearbox 108 ensures that a rate of unwinding of a fiber mat from the fiber spool is substantially equal to a movement of the moving rings 104-1, 104-2 along a circumference of the pipeline 112, and thus ensuring sufficient tension during wrapping operation. In an embodiment, the DC servo motor may be used to drive the gearbox in order to attain precise control of a speed of wrapping of the pipeline 112.

In an embodiment, the automatic wrapping apparatus 100 may be in communication with a controlling unit 114 which is configured to remotely control operation of the servo motor and thereby, controlling the wrapping operation of the pipeline 112. The controlling unit 114 may be in communication with the power source of the driving unit 107 of the automatic wrapping apparatus 100. In an embodiment, the controlling unit 114 may be in communication with the automatic wrapping apparatus 100 through communication modes including, but not limited to, a Bluetooth and a Wireless LAN (Wi-Fi).

The controlling unit 114 may be configured to be operated for starting or stopping the wrapping operation of the pipeline 112. Further, the controlling unit 114 may be configured to control the speed of wrapping of the pipeline 112. The controlling unit 114 may be configured to operate the power source to drive the gearbox 108 to wrap the fiber mat on the portion of the pipeline 112. Further, the controlling unit 114 may be configured to receive an input indicative of a speed of wrapping of the fiber mat on the portion of the pipeline 112. The controlling unit 114 may be configured to control the speed of wrapping of the fiber mat based on the received input.

Further, the present disclosure also relates to a method for wrapping the pipeline 112 using the automatic wrapping apparatus 100. The method includes assembling the automatic wrapping apparatus 100 over the damaged portion of the pipeline 112. In an embodiment, a sufficient clearance space may be ensured for allowing movement of the automatic wrapping apparatus 100 around the pipeline 112. Further, the method includes assembling the mounting rod 106-1 equipped with the fiber spool. The fiber spool is prewetted fiber. The prewetting of the fiber spool is done using a mechanism called resin bath mechanism before mounting the fiber spool on the mounting rod 106-1 of the automatic wrapping apparatus 100. Due to the resin content in prewetting of the fiber spool, one end of the fiber mat placed on the portion of the pipeline 112 may stick. Furthermore, the method includes switching-on the DC servo motor of the automatic wrapping apparatus 100 for starting the wrapping operation. Once the wrapping operation is started over the damaged portion of the pipeline, the fiber mat passes through the resin bath, prewetting itself before getting wrapped over the defect portion of the pipeline 112. A roller pressed against the pipeline 112 ensures a uniform distribution of resin over the fiber mat. Upon wrapping of a desired number of layers on the damaged portion, the DC servo motor may be switched-off. Subsequently, the fiber mat may be cut from the fiber spool. Further, rolling may be performed for ensuring adequate adherence of an open end of the fiber mat. Thereafter, upon completion of the wrapping operation, the automatic wrapping apparatus 100 may be disassembled by the technician.

Figure 5 illustrates a flowchart depicting a method 500 for repairing pipelines using the automatic wrapping apparatus 100, according to an embodiment of the present disclosure. For the sake of brevity, details of the present disclosure that are explained in details in the description of Figure 1a, Figure 1b, Figure 1c, Figure 2, Figure 3, and Figure 4 are not explained in detail in the description of Figure 5.

At block 502, the method 500 includes attaching the automatic wrapping apparatus 100 on the pipeline 112. In an embodiment, the method 500 includes positioning the first fixed ring 102-1 on the first end 112-1 of the portion of the pipeline (112) to be repaired. Further, the method 500 includes positioning the second fixed ring 102-2 on the second end of the portion of the pipeline 112. The method 500 includes positioning the first movable ring 104-1 on the first fixed ring 102-1. Further, the method 500 includes positioning the second movable ring 104-2 on the second fixed ring 102-1.

At block 504, the method 500 includes connecting the first movable ring 104-1 with the second movable ring 104-2 via the plurality of rods 106. At block 506, the method 500 includes mounting the rod 106-1 from among the plurality of rods 106 between the first movable ring 104-1 and the second movable ring 104-2. The rod 106-1 may be provided with the fiber spool to wrap the portion of the pipeline 112 with the fiber mat.

At block 508, the method 500 includes operating the power source to rotate the first movable ring 104-1 and the second movable ring 104-2 to unwrap the fiber mat from the fiber spool. At block 510, the method 500 includes wetting the fiber mat unwrapped from the fiber spool with polymer resin. Further, at block 512, the method 500 includes distributing the polymer resin over the fiber mat by rolling a roller on the fiber mat. At block 514, the method 500 includes cutting the fiber mat wrapped on the portion of the pipeline 112 from the fiber spool positioned on the rod upon wrapping a plurality of layers of the fiber mat on the portion.

The above-explained implementation of the automatic wrapping apparatus 100 for performing wrapping operation on the pipeline leads to the following advantages:
Reducing substantial amount of time for repairing the pipeline;
Substantially eliminating human intervention during wrapping operation, thereby ensuring optimum quality of repair;
Ensuring optimum and uniform fiber tension and volume fraction of repair composite, thereby improving quality of repair;
Repeatability of result;
Reduced human labor leading to reduction in human resource cost;
The automatic wrapping apparatus 100 can be used for repairing defects in oil, gas and, water pipelines with proper tension, and can save a repair time upto 50%.

While specific language has been used to describe the present subject matter, any limitations arising on account thereto, are not intended. As would be apparent to a person in the art, various working modifications may be made to the method in order to implement the inventive concept as taught herein. The drawings and the foregoing description give examples of embodiments. Those skilled in the art will appreciate that one or more of the described elements may well be combined into a single functional element. Alternatively, certain elements may be split into multiple functional elements. Elements from one embodiment may be added to another embodiment.

CLAIMS:1. An automatic wrapping apparatus (100) for repairing pipelines, the automatic pipeline wrapping apparatus (100) comprising:
a fixed ring assembly (102) adapted to be coupled around a portion of a pipeline (112) to be repaired;
a moving ring assembly (104) movably coupled to the first ring assembly (102) and adapted to be rotated around a circumference of the pipeline (112), wherein rotation of the moving ring assembly (104) is guided by the fixed ring assembly (102) around the circumference of the pipeline (112);
a plurality of rods (106) coupled to the moving ring assembly (104), wherein one of the plurality of rods (106) is adapted to mount a fibre spool to be wrapped around the portion of the pipeline (112); and
a driving unit (107) attached to the moving ring assembly (104) and adapted to be movably engaged with the fixed ring assembly (102),
wherein the driving unit (107) is adapted to rotate the moving ring assembly (104) to unwrap fibre mat from the fibre spool mounted on one of the plurality of rods (106).

2. The automatic wrapping apparatus (100) as claimed in clam 1, wherein the fixed ring assembly (102) includes a first fixed ring (102-1) and a second fixed ring (102-2), the first fixed ring (102-1) and the second fixed ring (102-2) are adapted to be coupled to a first end (112-1) and a second end (112-2), respectively, of the portion of the pipeline (112).

3. The automatic wrapping apparatus (100) as claimed in claim 2, wherein:
the first fixed ring (102-1) consists of a first half portion (202-1) and a second half portion (202-2) removably coupled to the first half portion (202-1);
the second fixed ring (102-2) consists of a first half portion (204-1) and a second half portion (204-2) removably coupled to the first half portion (204-1).

4. The automatic wrapping apparatus (100) as claimed in claim 3, wherein the first fixed ring (102-1) is provided with a gear (208) adapted to be engaged with a gearbox (108) the driving unit (107), wherein the driving unit (107) includes a power source adapted to drive the gearbox (108).

5. The automatic wrapping apparatus (100) as claimed in claim 4, wherein each of the first fixed ring (102-1) and the second fixed ring (102-2) is provided with a groove (206) adapted to guide the rotation of the moving ring assembly (104) around the circumference of the pipeline (112).

6. The automatic wrapping apparatus (100) as claimed in claim 1, wherein the moving ring assembly (104) includes a first moving ring (104-1) and a second moving ring (104-2), each of the first moving ring (104-1) and the second moving ring (104-2) consists of a first half portion and a second half portion removably coupled to the first half portion.

7. The automatic wrapping apparatus (100) as claimed in any of claims 5 and 6, wherein:
the first moving ring (104-1) and the second moving ring (104-2) includes a plurality of first rollers (302-1) and a plurality of second rollers (302-2), respectively,
wherein the plurality of first rollers (302-1) is movably accommodated within the groove (206) provided in the first fixed ring (102-1) and the plurality of second rollers (302-2) is movably accommodated within the groove (206) provided in the second fixed ring (102-1).

8. The automatic wrapping apparatus (100) as claimed in any of claims 1, 3, and 6, wherein:
the plurality of rods (106) extends parallel to an axis (X-X’) of the pipeline (112), the first moving ring (104-1) and the second moving ring (104-2) is adapted to be connected with each other through the plurality of rods 106,
wherein the plurality of rods (106) is adapted to transmit rotational movement of the first moving ring (104-1) to the second moving ring (104-2), wherein the gearbox (108) is adapted to be coupled to the first moving ring (104-2) to rotate the first moving ring (104-2) around the circumference of the pipeline (112).

9. The automatic wrapping apparatus (100) as claimed in any of claims 1 and 3 further comprising:
a roller (401) coupled to the moving ring assembly (104) and adapted to be pressed against the pipeline (112) to perform a rolling operation for uniform wetting of fibres;

a plurality of torsion springs adapted to be coupled to the roller (401) via a connecting link (403), wherein each of the plurality of torsion springs is enclosed in a housing (402) positioned on one of the plurality of rods (106); and
a controlling unit 114 in communication with the power source of the driving unit (107), wherein the controlling unit 114 is configured to:
operate the power source to drive the gearbox (108) to wrap the fibre mat on the portion of the pipeline (112);
receive an input indicative of a speed of wrapping of the fibre mat on the portion of the pipeline (112); and
control the speed of wrapping of the fibre mat based on the received input.

10. A method (500) for repairing pipelines using an automatic wrapping apparatus (100), the method (500) comprising:
attaching the automatic wrapping apparatus (100) on a pipeline (112) comprising:
positioning:
a first fixed ring (102-1) on a first end (112-1) of a portion of the pipeline (112) to be repaired;
a second fixed ring (102-2) on a second end (112-2) of the portion of the pipeline (112);
a first movable ring (104-1) on the first fixed ring (102-1); and
a second movable ring (104-2) on the second fixed ring (102-1),
connecting the first movable ring (104-1) with the second movable ring (104-2) via a plurality of rods (106); and
mounting a rod (106-1) from among the plurality of rods between the first movable ring (104-1) and the second movable ring (104-2), wherein the rod (106-1) is provided with a fibre spool to wrap the portion of the pipeline (112) with fibre mat,
operating a power source to rotate the first movable ring (104-1) and the second movable ring (104-2) to unwrap the fibre mat from the fibre spool;
wetting the fibre mat unwrapped from the fibre spool with polymer resin;
distributing the polymer resin over the fibre mat by rolling a roller on the fibre mat; and
cutting the fibre mat wrapped on the portion of the pipeline (112) from the fibre spool positioned on the rod upon wrapping a plurality of layers of the fibre mat on the portion.