Device and method for laying distributed optical fiber on inner wall of water supply pipeline

Abstract

The present invention relates to a device and method for laying distributed optical fibers on the inner wall of a water supply pipeline. The method comprises the following steps: providing a sprayer, placing the sprayer in the water supply pipeline; providing an optical fiber wheel, on which an optical fiber is wound, rotatably mounting the optical fiber wheel on the sprayer, and temporarily fixing the end of the optical fiber; and driving the sprayer to move along the water supply pipeline, the optical fiber is laid on the inner wall of the water supply pipeline as the sprayer moves, and at the same time the sprayer sprays the inner wall of the water supply pipeline to form a spray film layer on the inner wall of the water supply pipeline, the formed spray film layer covers the optical fiber laid on the inner wall of the water supply pipeline and fixes the optical fiber to the water supply pipeline. The present invention provides a trenchless optical fiber laying method. After the optical fiber is laid, the spray film layer formed by spraying is used to fix the optical fiber to the water supply pipeline. The construction is simple and convenient, safe and firm.

Description

Technical Field

[0001] The present invention relates to the technical field of laying optical fibers, and in particular to a device and method for laying distributed optical fibers on the inner wall of a water supply pipeline. Background Art

[0002] Distributed optical fiber has a relatively sensitive detection function for water supply pipeline leakage. When optical fiber is laid on the inner wall of the water supply pipeline, one end of the optical fiber is connected to the monitoring host, which can process the optical phase change signal caused by the leakage sound sensed by the optical fiber. When a leak occurs, water with a certain pressure in the pipe will flow out through the leak hole, and at the same time impact the edge of the leak hole or the soil outside the pipe to form a leakage sound. The leakage sound may be transmitted to the optical fiber through various media and stimulate the optical fiber to produce stimulated vibration.

[0003] Laying optical fiber on the inner wall can protect the optical fiber from being invaded by other organisms in the soil. If the optical fiber is laid at the same time as the pipeline is laid, the construction is more convenient. However, for water supply pipelines that have been laid underground, laying optical fiber requires excavation, exposing both ends of the water supply pipeline, and then inserting the optical fiber. The construction is difficult and the amount of work is large. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a device and method for laying distributed optical fiber on the inner wall of a water supply pipeline, so as to solve the existing problems of great construction difficulty and large engineering workload caused by the need to excavate for laying optical fiber in water supply pipelines that have been laid underground.

[0005] The technical solution to achieve the above purpose is:

[0006] The present invention provides a method for laying distributed optical fiber on the inner wall of a water supply pipeline, comprising the following steps:

[0007] Providing a sprayer, and placing the sprayer in a water supply pipeline;

[0008] Providing an optical fiber reel on which an optical fiber is wound, rotatably mounting the optical fiber reel on the spray coating machine, and temporarily fixing the end of the optical fiber; and

[0009] The sprayer is driven to move along the water supply pipe, and the optical fiber is laid on the inner wall of the water supply pipe as the sprayer moves. At the same time, the sprayer sprays the inner wall of the water supply pipe to form a spray film layer on the inner wall of the water supply pipe. The formed spray film layer covers the optical fiber laid on the inner wall of the water supply pipe and fixes the optical fiber to the water supply pipe.

[0010] The present invention provides a trenchless optical fiber laying method, wherein an optical fiber wheel is installed on a spray coating machine, and the spray coating machine is placed in a water supply pipe, so that the optical fiber is laid synchronously with the movement of the spray coating machine. After the optical fiber is laid, the spray coating film layer formed by spraying is used to fix the optical fiber to the water supply pipe. The construction is simple and convenient, and the optical fiber is wrapped between the spray coating film layer and the pipe wall of the water supply pipe, which is safe and firm. The fixed optical fiber can play a good role in detecting leakage. The spray coating film layer formed by the spray coating operation of the spray coating machine on the inner wall of the water supply pipe can play a good role in repairing the water supply pipe, which can not only strengthen the overall strength of the water supply pipe, but also block the leakage hole of the water supply pipe.

[0011] A further improvement of the method for laying distributed optical fiber on the inner wall of a water supply pipeline of the present invention is that after the sprayer is placed in the water supply pipeline, the sprayer is moved from the first end to the second end of the water supply pipeline;

[0012] When the sprayer is driven to move along the water supply pipe, the sprayer is driven to move from the second end to the first end of the water supply pipe in a backward manner.

[0013] A further improvement of the method for laying distributed optical fiber on the inner wall of a water supply pipe of the present invention is that the optical fiber reel is installed at the rear end of the sprayer, and the end of the optical fiber is passed through the bottom of the sprayer from the rear end of the sprayer to the front end, and the end of the optical fiber is temporarily fixed at the second end of the water supply pipe.

[0014] A further improvement of the method for laying distributed optical fibers on the inner wall of a water supply pipeline of the present invention is that it further comprises:

[0015] Providing a positioning wheel, installing the positioning wheel on the spraying machine through a support rod, the installation position of the positioning wheel corresponding to the laying position of the optical fiber;

[0016] When laying the optical fiber, the optical fiber is pressed against the inner wall of the water supply pipe by the positioning wheel.

[0017] A further improvement of the method for laying distributed optical fiber on the inner wall of a water supply pipe of the present invention is that a positioning groove is provided on the surface of the positioning wheel, the positioning groove is clamped on the corresponding part of the optical fiber, and the bottom of the positioning wheel contacts the inner wall of the water supply pipe.

[0018] A further improvement of the method for laying distributed optical fibers on the inner wall of a water supply pipe of the present invention is that a rotary spray head is installed at the front end of the spraying machine, and the spraying operation is performed by the rotary spray head.

[0019] A further improvement of the method for laying distributed optical fibers on the inner wall of a water supply pipeline of the present invention is that it further comprises:

[0020] A fixed pulley is provided, and the fixed pulley is installed on the spraying machine and arranged close to the optical fiber wheel. The optical fiber released from the optical fiber wheel bypasses the fixed pulley and is then laid on the inner wall of the water supply pipe.

[0021] A further improvement of the method for laying distributed optical fibers on the inner wall of a water supply pipeline of the present invention is that the step of driving the sprayer to move along the water supply pipeline comprises:

[0022] Connecting a traction rope to the spraying machine;

[0023] The other end of the traction rope is wound on a winch, and the winch winds up the traction rope to pull the sprayer to move along the water supply pipeline.

[0024] A further improvement of the method for laying distributed optical fibers on the inner wall of a water supply pipeline of the present invention is that the step of driving the sprayer to move along the water supply pipeline comprises:

[0025] A driving motor is provided, and the driving motor is connected to the wheels of the sprayer. The wheels of the sprayer are driven to rotate by the driving motor to drive the sprayer to move along the water supply pipeline.

[0026] The present invention also provides a device for laying distributed optical fibers on the inner wall of a water supply pipeline, comprising:

[0027] a sprayer placed in the water supply pipeline;

[0028] an optical fiber wheel rotatably mounted on the spraying machine, the optical fiber wheel being wound with an optical fiber; and

[0029] A driving mechanism is connected to the sprayer, and the sprayer is driven to move by the driving mechanism. As the sprayer moves, the optical fiber is laid on the inner wall of the water supply pipe, and the sprayer sprays the inner wall of the water supply pipe while moving to form a spray film layer on the inner wall of the water supply pipe. The formed spray film layer covers the optical fiber laid on the inner wall of the water supply pipe, thereby fixing the optical fiber to the water supply pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of the sprayer and the water supply pipe in the device and method for laying distributed optical fiber on the inner wall of the water supply pipe of the present invention.

[0031] Figure 2 for Figure 1 Side view shown.

[0032] Figure 3 It is a cross-sectional view of the inner wall of a water supply pipe after a spray coating layer is formed in the device and method for laying distributed optical fiber on the inner wall of a water supply pipe of the present invention. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0034] See also Figure 1 The present invention provides a device and method for laying distributed optical fibers on the inner wall of a water supply pipe, which is used to achieve the laying of optical fibers on underground water supply pipes without excavation. The present invention uses spraying technology to fix the distributed optical fibers on the inner wall of the water supply pipe. After spraying, the optical fibers are wrapped between the spray layer and the pipe wall, which is safe and firm, and can achieve a good effect in detecting leaks. The laying of the optical fibers is achieved by the movement of the sprayer, so that the laying of the optical fibers and the spraying operations are carried out simultaneously, avoiding excavation operations, and the laying work is simple and convenient. The device and method for laying distributed optical fibers on the inner wall of a water supply pipe of the present invention are described below in conjunction with the accompanying drawings.

[0035] See also Figure 1 , showing the schematic diagram of the structure of the sprayer and the water supply pipe in the device and method for laying distributed optical fiber on the inner wall of the water supply pipe of the present invention. Figure 1 , the device for laying distributed optical fibers on the inner wall of a water supply pipe of the present invention is described.

[0036] like Figure 1 As shown, Figure 1 As shown, the device for laying distributed optical fiber on the inner wall of a water supply pipe of the present invention comprises a sprayer 20, an optical fiber wheel 31 and a driving mechanism; the sprayer 20 is placed in the water supply pipe 10; the optical fiber wheel 31 is rotatably mounted on the sprayer 20, and an optical fiber 311 is wound on the optical fiber wheel 31, and the optical fiber 311 can be retracted and released as the optical fiber wheel 31 rotates; the driving mechanism is drivingly connected to the sprayer 20, and the driving mechanism drives the sprayer 20 to move, and the optical fiber 311 is laid on the inner wall of the water supply pipe 10 as the sprayer 20 moves, and the sprayer 20 sprays the inner wall of the water supply pipe 10 while moving to form a spray film layer 32 on the inner wall surface of the water supply pipe 10, and the formed spray film layer 32 covers the optical fiber 311 laid on the inner wall of the water supply pipe 10 and fixes the optical fiber 311 to the water supply pipe 10.

[0037] The water supply pipe 10 of the present invention is a water supply pipe buried underground, and vertical operation wells are provided at both ends of the water supply pipe 10, through which the sprayer 20 is sent into the water supply pipe 10. Preferably, the diameter of the water supply pipe 10 is greater than or equal to 30 cm. Specifically, the sprayer 20 is hoisted from the ground into the operation well at the first end 11 of the water supply pipe 10, and the staff also enters the operation well, and the staff sends the sprayer 20 from the operation well into the water supply pipe 10.

[0038] In a specific embodiment, after the sprayer 20 is placed in the water supply pipe 10, the sprayer 20 is moved from the first end 11 to the second end 12 of the water supply pipe 10; when the sprayer 20 is driven to move along the water supply pipe 10, the sprayer 20 is driven to move from the second end 12 to the first end 11 of the water supply pipe 10 in a backward manner. By moving the sprayer 20 in the water supply pipe 10 in a backward movement, the optical fiber 311 can be laid first and then the spraying operation can be performed, so that the sprayed film layer 32 formed by spraying can cover the optical fiber 311, and the optical fiber 311 is fixed to the inner wall of the water supply pipe 10.

[0039] In a specific embodiment, the fiber optic reel 31 is installed at the rear end 22 of the sprayer 20, and the end of the optical fiber 311 is passed from the bottom of the sprayer 20 from the rear end 22 of the sprayer 20 to the front end 21, and the end of the optical fiber 311 is temporarily fixed at the second end 12 of the water supply pipe 10.

[0040] Preferably, when the sprayer 20 moves to the second end 12 of the water supply pipe 10, the construction personnel fix the optical fiber reel 31 on the sprayer 20 in the operating well at the second end 12 of the water supply pipe 10, and wrap the end (i.e., the end) of the optical fiber on the optical fiber reel 31 from the bottom of the sprayer 20 from the rear end to the front end, and temporarily fix the end.

[0041] For the convenience of description, the direction where the rear end 22 of the sprayer 20 is located is defined as the rear, and the direction where the front end 21 is located is defined as the front. The optical fiber reel 31 is installed to the rear end 22 of the sprayer 20, and cooperates with the sprayer 20 to move backwards to the rear, and the end of the optical fiber 311 is temporarily fixed at the second end 12 of the water supply pipe 10. As the sprayer 20 moves, the optical fiber reel 31 rotates to release the optical fiber 311, and the optical fiber in front of the sprayer 20 is laid on the inner wall of the water supply pipe 10, so that the optical fiber is laid synchronously while the sprayer 20 moves.

[0042] Furthermore, a bracket is fixed to the rear end 22 of the sprayer 20, and a rotating shaft is provided on the bracket. When the optical fiber wheel 31 is installed, the optical fiber wheel 31 is sleeved on the rotating shaft, so that the optical fiber wheel 31 can rotate freely around the rotating shaft. After the optical fiber wheel 31 is installed, a stopper is fixed at the end of the rotating shaft to prevent the optical fiber wheel 31 from falling off.

[0043] In a specific embodiment, Figure 1As shown, it also includes a positioning wheel 33 installed on the spraying machine 20, the positioning wheel 33 is installed on the spraying machine 20 through a support rod 34, and the installation position of the positioning wheel 33 corresponds to the laying position of the optical fiber 311; the positioning wheel 33 presses the portion of the optical fiber 311 facing the water supply pipe 10 to press the optical fiber 311 into the water supply pipe 10, and the bottom of the positioning wheel 33 contacts the inner wall of the water supply pipe 10. By setting the positioning wheel 33, when laying the optical fiber 311, the optical fiber 311 is pressed against the inner wall of the water supply pipe 10.

[0044] Specifically, the positioning wheel 33 is supported and connected to the sprayer 20 through the support rod 34. Preferably, the positioning wheel 33 is installed at the front end 21 of the sprayer 20. The positioning wheel 33 is pressed on the optical fiber 311. As the sprayer 20 moves, the positioning wheel 33 rolls on the inner wall of the water supply pipe 10, and then the optical fiber 311 is laid on the inner wall by the pressure of the positioning wheel 33.

[0045] Furthermore, a positioning groove is provided on the surface of the positioning wheel 33, and the positioning groove is inserted into the corresponding part of the optical fiber 311, and the bottom of the positioning wheel 33 contacts the inner wall of the water supply pipe 10. The positioning wheel 33 is supported on the bottom of the inner wall of the water supply pipe 10 by the support rod 34, and the positioning wheel 33 can move along the inner wall of the water supply pipe 10. The positioning groove provided in the positioning wheel 33 plays a role in positioning and guiding the laid optical fiber 311, ensuring that the optical fiber 311 is laid along the bottom of the inner wall of the water supply pipe 10.

[0046] In a specific embodiment, Figure 1 As shown, the front end 21 of the sprayer 20 is equipped with a rotating spray head 23, and the spraying operation is performed through the rotating spray head 23. The rotating spray head 23 can rotate 360 ​​degrees to spray uniformly on the inner wall of the water supply pipe 10, and the rotating spray head 23 can rotate 360 ​​degrees to spray uniformly on the inner wall of the water supply pipe 10. Figure 3 As shown, a spray coating layer 32 is formed on the inner wall surface of the water supply pipe 10 .

[0047] Preferably, the rotary nozzle 23 of the sprayer 20 is connected to a feed pipe 24, which extends from the rear end 22 of the sprayer 20 and then extends from the first end 11 of the water supply pipe 10. The feed pipe 24 then extends from the wellhead of the operating well and extends into the material tank filled with paint, and the paint is delivered to the rotary nozzle 23 through the feed pipe 24, and the rotary nozzle 23 evenly sprays the paint onto the inner wall of the water supply pipe 10. Preferably, a paint pump is connected to the feed pipe 24 to pump the paint in the material tank to the rotary nozzle 23 through the feed pipe.

[0048] Furthermore, the rotary spray head 23 is supported at the front end 21 of the sprayer 20 by a rotating shaft, and there is a certain distance between the rotary spray head 23 and the front end 21 of the sprayer 20 to ensure that when the rotary spray head 23 sprays the inner wall of the water supply pipe 10, the sprayed paint will not be sprayed on the sprayer 20. Preferably, the paint is polyurea paint.

[0049] A rotary nozzle is used to spray paint to form a spray film layer to repair the leaking water supply pipe. The paint is evenly sprinkled on the inner wall through high-speed rotation, and forms a strong coating after solidification, thereby plugging the leak, repairing the water supply pipe, and strengthening the structural strength of the water supply pipe.

[0050] In a specific embodiment, Figure 1 and Figure 2 As shown, it also includes a fixed pulley 35 installed on the sprayer 20 , and the fixed pulley 35 is arranged close to the optical fiber wheel 31 . The optical fiber 311 released from the optical fiber wheel 31 bypasses the fixed pulley 35 and is then laid on the inner wall of the water supply pipe 10 .

[0051] Preferably, the fixed pulley 35 is supported and connected to the rear end 22 of the sprayer 20 through a support rod 36, and a certain distance is left between the fixed pulley 35 and the inner wall of the water supply pipe 10. After the optical fiber 311 is released from the optical fiber wheel 31, it bypasses the fixed pulley 35 and is then laid on the inner wall of the water supply pipe 10. The fixed pulley 35 cooperates with the positioning wheel 33 to position the laying of the optical fiber 311, ensuring that the released optical fiber 311 is laid straight on the inner wall of the water supply pipe 10.

[0052] Preferably, the support rod 36 is arranged in an inclined state, and the support rod 36 and the supporting rod 34 are arranged in an inclined direction with their bottoms moving away from each other.

[0053] In a specific embodiment, the driving mechanism includes a traction rope 37 and a winch; one end of the traction rope 37 is connected to the sprayer 20, and the other end of the traction rope 37 is wound on the winch. The winch winds the traction rope 37 to pull the sprayer 20 to move, so that the sprayer 20 can move along the water supply pipe 10.

[0054] One end of the traction rope 37 is fixed to the rear end 22 of the sprayer 20, and the other end of the traction rope 37 is wound and fixed on a winch. The winch can be placed on a lifting platform in the operating well at the first end 11 of the water supply pipe 10. The winch can evenly reel in the traction rope 37 to evenly pull the sprayer 20 backward.

[0055] In a specific embodiment, the driving mechanism is a driving motor connected to the wheels of the sprayer 20, and the driving motor drives the wheels of the sprayer to rotate to drive the sprayer to move along the water supply pipe 10. Figure 1and Figure 2 As shown, the output shaft of the driving motor is connected to the mounting shaft of the wheel 25 through a gear. The driving motor is fixed on the sprayer 20. The driving motor drives the wheel 25 to rotate through gear transmission, thereby allowing the sprayer 20 to move along the water supply pipe 10 at a constant speed.

[0056] In a specific embodiment, it also includes a temporary fixing structure 41 fixedly arranged at one end of the water supply pipe 10, and the temporary fixing 41 is fixedly connected to the end of the optical fiber 311 to temporarily fix the end of the optical fiber 311 to the water supply pipe 10. Preferably, the temporary fixing structure 41 is a pressure rod fixed to the bottom of the inner wall of the water supply pipe 10, and the end of the optical fiber 311 is temporarily fixed to the water supply pipe 10 by the pressure rod. More preferably, the temporary fixing structure 41 is a robot, and the end of the optical fiber 311 is pressed by the robot.

[0057] The present invention also provides a method for laying distributed optical fibers on the inner wall of a water supply pipeline, which is described below.

[0058] like Figure 1 As shown, the method for laying distributed optical fibers on the inner wall of a water supply pipeline of the present invention comprises the following steps:

[0059] A sprayer 20 is provided and placed in the water supply pipe 10;

[0060] Providing an optical fiber reel 31 on which an optical fiber 311 is wound, rotatably mounting the optical fiber reel 31 on the spray coating machine 20, and temporarily fixing the end of the optical fiber 311; and

[0061] The spraying machine 20 is driven to move along the water supply pipe 10, and the optical fiber 311 is laid on the inner wall of the water supply pipe 10 as the spraying machine 20 moves. Figure 3 As shown, the sprayer 20 sprays the inner wall of the water supply pipe 10 to form a spray film layer 32 on the inner wall of the water supply pipe 10. The formed spray film layer 32 covers the optical fiber 311 laid on the inner wall of the water supply pipe 10 and fixes the optical fiber 311 to the water supply pipe 10.

[0062] The water supply pipe 10 of the present invention is a water supply pipe buried underground, and vertical operation wells are provided at both ends of the water supply pipe 10, through which the sprayer 20 is sent into the water supply pipe 10. Preferably, the diameter of the water supply pipe 10 is greater than or equal to 30 cm. Specifically, the sprayer 20 is hoisted from the ground into the operation well at the first end 11 of the water supply pipe 10, and the staff also enters the operation well, and the staff sends the sprayer 20 from the operation well into the water supply pipe 10.

[0063] In one embodiment, after the sprayer 20 is placed in the water supply pipe 10, the sprayer 20 is moved from the first end 11 to the second end 12 of the water supply pipe 10;

[0064] When the sprayer 20 is driven to move along the water supply pipe 10 , the sprayer 20 is driven to move from the second end 12 to the first end 11 of the water supply pipe 10 in a backward manner.

[0065] By moving the sprayer 20 backward in the water supply pipe 10 , the optical fiber 311 can be laid first and then sprayed, so that the sprayed film layer 32 formed by spraying can cover the optical fiber 311 and fix the optical fiber 311 on the inner wall of the water supply pipe 10 .

[0066] In a specific embodiment, the optical fiber reel 31 is installed at the rear end 22 of the sprayer 20, and the end of the optical fiber 311 is passed from the bottom of the sprayer 20 from the rear end 22 of the sprayer 20 to the front end 21, and the end of the optical fiber 311 is temporarily fixed at the second end 12 of the water supply pipe 10.

[0067] Preferably, when the sprayer 20 moves to the second end 12 of the water supply pipe 10, the construction personnel fix the optical fiber reel 31 on the sprayer 20 in the operating well at the second end 12 of the water supply pipe 10, and wrap the end (i.e., the end) of the optical fiber on the optical fiber reel 31 from the bottom of the sprayer 20 from the rear end to the front end, and temporarily fix the end.

[0068] For the convenience of description, the direction where the rear end 22 of the sprayer 20 is located is defined as the rear, and the direction where the front end 21 is located is defined as the front. The optical fiber reel 31 is installed to the rear end 22 of the sprayer 20, and cooperates with the sprayer 20 to move backwards to the rear, and the end of the optical fiber 311 is temporarily fixed at the second end 12 of the water supply pipe 10. As the sprayer 20 moves, the optical fiber reel 31 rotates to release the optical fiber 311, and the optical fiber in front of the sprayer 20 is laid on the inner wall of the water supply pipe 10, so that the optical fiber is laid synchronously while the sprayer 20 moves.

[0069] Furthermore, a bracket is fixed to the rear end 22 of the sprayer 20, and a rotating shaft is provided on the bracket. When the optical fiber wheel 31 is installed, the optical fiber wheel 31 is sleeved on the rotating shaft, so that the optical fiber wheel 31 can rotate freely around the rotating shaft. After the optical fiber wheel 31 is installed, a stopper is fixed at the end of the rotating shaft to prevent the optical fiber wheel 31 from falling off.

[0070] In a specific embodiment, Figure 1 As shown, it also includes:

[0071] Provide a positioning wheel 33, and install the positioning wheel 33 on the spraying machine 20 through a support rod 34, and the installation position of the positioning wheel 33 corresponds to the laying position of the optical fiber 311;

[0072] When laying the optical fiber 311 , the optical fiber 311 is pressed against the inner wall of the water supply pipe 10 by the positioning wheel 33 .

[0073] Specifically, the positioning wheel 33 is supported and connected to the sprayer 20 through the support rod 34. Preferably, the positioning wheel 33 is installed at the front end 21 of the sprayer 20. The positioning wheel 33 is pressed on the optical fiber 311. As the sprayer 20 moves, the positioning wheel 33 rolls on the inner wall of the water supply pipe 10, and then the optical fiber 311 is laid on the inner wall by the pressure of the positioning wheel 33.

[0074] Furthermore, a positioning groove is provided on the surface of the positioning wheel 33, and the positioning groove is inserted into the corresponding part of the optical fiber 311, and the bottom of the positioning wheel 33 contacts the inner wall of the water supply pipe 10. The positioning wheel 33 is supported on the bottom of the inner wall of the water supply pipe 10 by the support rod 34, and the positioning wheel 33 can move along the inner wall of the water supply pipe 10. The positioning groove provided in the positioning wheel 33 plays a role in positioning and guiding the laid optical fiber 311, ensuring that the optical fiber 311 is laid along the bottom of the inner wall of the water supply pipe 10.

[0075] In a specific embodiment, Figure 1 As shown, the front end 21 of the sprayer 20 is equipped with a rotating spray head 23, and the spraying operation is performed through the rotating spray head 23. The rotating spray head 23 can rotate 360 ​​degrees to spray uniformly on the inner wall of the water supply pipe 10, and the rotating spray head 23 can rotate 360 ​​degrees to spray uniformly on the inner wall of the water supply pipe 10. Figure 3 As shown, a spray coating layer 32 is formed on the inner wall surface of the water supply pipe 10 .

[0076] Preferably, the rotary nozzle 23 of the sprayer 20 is connected to a feed pipe 24, which extends from the rear end 22 of the sprayer 20 and then extends from the first end 11 of the water supply pipe 10. The feed pipe 24 then extends from the wellhead of the operating well and extends into the material tank filled with paint, and the paint is delivered to the rotary nozzle 23 through the feed pipe 24, and the rotary nozzle 23 evenly sprays the paint onto the inner wall of the water supply pipe 10. Preferably, a paint pump is connected to the feed pipe 24 to pump the paint in the material tank to the rotary nozzle 23 through the feed pipe.

[0077] Furthermore, the rotary spray head 23 is supported at the front end 21 of the sprayer 20 by a rotating shaft, and there is a certain distance between the rotary spray head 23 and the front end 21 of the sprayer 20 to ensure that when the rotary spray head 23 sprays the inner wall of the water supply pipe 10, the sprayed paint will not be sprayed on the sprayer 20. Preferably, the paint is polyurea paint.

[0078] A rotary nozzle is used to spray paint to form a spray film layer to repair the leaking water supply pipe. The paint is evenly sprinkled on the inner wall through high-speed rotation, and forms a strong coating after solidification, thereby plugging the leak, repairing the water supply pipe, and strengthening the structural strength of the water supply pipe.

[0079] In a specific embodiment, Figure 1 and Figure 2 As shown, it also includes:

[0080] A fixed pulley 35 is provided and installed on the spraying machine 20 and disposed close to the optical fiber wheel 31 . The optical fiber 311 released from the optical fiber wheel 31 bypasses the fixed pulley 35 and is then laid on the inner wall of the water supply pipe 10 .

[0081] Preferably, the fixed pulley 35 is supported and connected to the rear end 22 of the sprayer 20 through a support rod 36, and a certain distance is left between the fixed pulley 35 and the inner wall of the water supply pipe 10. After the optical fiber 311 is released from the optical fiber wheel 31, it bypasses the fixed pulley 35 and is then laid on the inner wall of the water supply pipe 10. The fixed pulley 35 cooperates with the positioning wheel 33 to position the laying of the optical fiber 311, ensuring that the released optical fiber 311 is laid straight on the inner wall of the water supply pipe 10.

[0082] Preferably, the support rod 36 is arranged in an inclined state, and the support rod 36 and the supporting rod 34 are arranged in an inclined direction with their bottoms moving away from each other.

[0083] In a specific embodiment, the step of driving the sprayer 20 to move along the water supply pipeline includes:

[0084] A traction rope 37 is connected to the spraying machine 20;

[0085] The other end of the traction rope 37 is wound around a winch, and the winch winds up the traction rope to pull the sprayer 20 to move along the water supply pipe 10 .

[0086] One end of the traction rope 37 is fixed to the rear end 22 of the sprayer 20, and the other end of the traction rope 37 is wound and fixed on a winch. The winch can be placed on a lifting platform in the operating well at the first end 11 of the water supply pipe 10. The winch can evenly reel in the traction rope 37 to evenly pull the sprayer 20 backward.

[0087] In a specific embodiment, the step of driving the sprayer 20 to move along the water supply pipe 10 includes:

[0088] A driving motor is provided, and the driving motor is connected to the wheel 25 of the sprayer 20, and the driving motor drives the wheel 25 of the sprayer 20 to rotate so as to drive the sprayer 20 to move along the water supply pipe 10. Figure 1 and Figure 2As shown, the output shaft of the driving motor is connected to the mounting shaft of the wheel 25 through a gear. The driving motor is fixed on the sprayer 20. The driving motor drives the wheel 25 to rotate through gear transmission, thereby allowing the sprayer 20 to move along the water supply pipe 10 at a constant speed.

[0089] In a specific embodiment, the end of the optical fiber 311 is temporarily fixed, and the end of the optical fiber 311 is temporarily fixed to the water supply pipe 10 through a temporary fixing structure 41. In one embodiment, the temporary fixing structure 41 is a pressure rod, and the end of the optical fiber 311 is fixed to the inner wall of the operation well at the second end 12 of the water supply pipe 10 through the pressure rod. In another embodiment, the temporary fixing structure 41 is a robot, and the end of the optical fiber 311 is pressed to the bottom of the inner wall of the water supply pipe 10 by the robot.

[0090] The process of laying distributed optical fiber according to the present invention is described below.

[0091] A construction worker sends a sprayer with a paint delivery pipe connected to the rear end into the water supply pipe from the operating well at the first end of the water supply pipe, starts the sprayer, and moves it to the second end of the water supply pipe; another construction worker installs the optical fiber wheel on the sprayer at the second end of the water supply pipe, passes the end of the optical fiber around the fixed pulley, passes through the bottom of the positioning wheel, and then temporarily fixes the end, and the end of the optical fiber to the bottom of the positioning wheel fits the bottom of the inner wall of the water supply pipe. Then turn on the sprayer, make the sprayer retreat at a uniform speed, and at the same time, the rotary nozzle of the sprayer starts to rotate at high speed to spray. During the uniform speed retreat of the sprayer, the optical fiber wheel rotates evenly, gradually releases the optical fiber, and fits with the bottom of the water supply pipe. During the spraying process, the paint covers the entire surface of the optical fiber, so that the optical fiber is completely fixed to the bottom of the inner wall of the water supply pipe.

[0092] The present invention is described in detail above in conjunction with the embodiments of the accompanying drawings. A person skilled in the art can make various variations of the present invention according to the above description. Therefore, certain details in the embodiments should not constitute a limitation of the present invention, and the scope of protection of the present invention shall be defined by the scope of the attached claims.

Claims

1. A method for laying distributed optical fiber on the inner wall of a water supply pipeline, characterized in that: The steps include: Providing a sprayer, and placing the sprayer in a water supply pipeline; Providing an optical fiber wheel on which an optical fiber is wound, rotatably mounting the optical fiber wheel on the spray coating machine, and temporarily fixing the end of the optical fiber; as well as The sprayer is driven to move along the water supply pipe, and the optical fiber is laid on the inner wall of the water supply pipe as the sprayer moves. At the same time, the sprayer sprays the inner wall of the water supply pipe to form a spray film layer on the inner wall of the water supply pipe. The formed spray film layer covers the optical fiber laid on the inner wall of the water supply pipe and fixes the optical fiber to the water supply pipe.

2. The method for laying distributed optical fiber on the inner wall of a water supply pipeline according to claim 1, characterized in that: After placing the sprayer in the water supply pipe, moving the sprayer from the first end to the second end of the water supply pipe; When the sprayer is driven to move along the water supply pipe, the sprayer is driven to move from the second end to the first end of the water supply pipe in a backward manner.

3. The method for laying distributed optical fiber on the inner wall of a water supply pipeline according to claim 2, characterized in that: The optical fiber wheel is installed at the rear end of the sprayer, and the end of the optical fiber is passed from the bottom of the sprayer from the rear end to the front end of the sprayer, and the end of the optical fiber is temporarily fixed at the second end of the water supply pipe.

4. The method for laying distributed optical fiber on the inner wall of a water supply pipeline according to claim 1 or 3, characterized in that: Also includes: Providing a positioning wheel, installing the positioning wheel on the spraying machine through a support rod, the installation position of the positioning wheel corresponding to the laying position of the optical fiber; When laying the optical fiber, the optical fiber is pressed against the inner wall of the water supply pipe by the positioning wheel.

5. The method for laying distributed optical fiber on the inner wall of a water supply pipeline according to claim 4, characterized in that: A positioning groove is provided on the surface of the positioning wheel, and the positioning groove is sleeved on a corresponding part of the optical fiber. The bottom of the positioning wheel contacts the inner wall of the water supply pipe.

6. The method for laying distributed optical fiber on the inner wall of a water supply pipeline according to claim 2, characterized in that: A rotary spray head is installed at the front end of the spray machine, and spraying operation is performed through the rotary spray head.

7. The method for laying distributed optical fiber on the inner wall of a water supply pipeline according to claim 1, characterized in that: Also includes: A fixed pulley is provided, and the fixed pulley is installed on the spraying machine and arranged close to the optical fiber wheel. The optical fiber released from the optical fiber wheel bypasses the fixed pulley and is then laid on the inner wall of the water supply pipe.

8. The method for laying distributed optical fiber on the inner wall of a water supply pipeline according to claim 1, characterized in that: The step of driving the sprayer to move along the water supply pipeline comprises: Connecting a traction rope to the spraying machine; The other end of the traction rope is wound on a winch, and the winch winds up the traction rope to pull the sprayer to move along the water supply pipeline.

9. The method for laying distributed optical fiber on the inner wall of a water supply pipeline according to claim 1, characterized in that: The step of driving the sprayer to move along the water supply pipeline comprises: A driving motor is provided, and the driving motor is connected to the wheels of the sprayer. The wheels of the sprayer are driven to rotate by the driving motor to drive the sprayer to move along the water supply pipeline.

10. The method for laying distributed optical fiber on the inner wall of a water supply pipeline according to claim 1, characterized in that: The method uses a device to achieve the laying of distributed optical fibers on the inner wall of a water supply pipeline, and the device comprises: a sprayer placed in the water supply pipeline; an optical fiber wheel rotatably mounted on the spraying machine, the optical fiber wheel being wound with an optical fiber; and A driving mechanism is connected to the sprayer, and the sprayer is driven to move by the driving mechanism. As the sprayer moves, the optical fiber is laid on the inner wall of the water supply pipe, and the sprayer sprays the inner wall of the water supply pipe while moving to form a spray film layer on the inner wall of the water supply pipe. The formed spray film layer covers the optical fiber laid on the inner wall of the water supply pipe, thereby fixing the optical fiber to the water supply pipe.

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