A trace coupling water supply system for nuclear power pipeline detection

Abstract

The application provides a nuclear power pipeline detection trace coupling water supply system, which comprises a support, a coupling solvent tank, a buffer mechanism, a reflux unit, a conveying unit and a centrifugal system, a partition is arranged on the top of the support, the coupling solvent tank is arranged on one side of the partition, the centrifugal system is arranged on the other side of the partition, the buffer mechanism is arranged at the tail end of the centrifugal system, the reflux unit is arranged on the top of the partition, and the reflux unit is connected with the top of the buffer mechanism. The nuclear power pipeline detection trace coupling water supply system is provided with the centrifugal system, the part of the coupling solution injected into the buffer mechanism is subjected to bubble elimination through centrifugal motion, the ultrasonic probe and the inner wall of the pipeline can be completely filled with sufficient coupling solution medium at all times, the reliability of the test is improved, and the staff only needs to control the connection state of two pipelines, so that the operation process is simple and convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nuclear power pipeline detection, in particular to a nuclear power pipeline detection trace coupling water supply system. BACKGROUND

[0002] The pipeline system of a nuclear power plant generally uses high-temperature, high-pressure and high-strength materials, and the detection quality requirement for the inside of the pipeline is very high. When detecting the nuclear power pipeline, the pipeline needs to be emptied first, and then an ultrasonic detection device is assembled inside the pipeline for detection. When using the ultrasonic detection device, coupling agent needs to be filled between the ultrasonic probe and the inner wall of the nuclear power pipeline. Since the coupling agent has good adhesion, it can effectively fill the gap between the probe and the inner wall of the nuclear power pipeline, reduce the energy loss of the sound wave in the transmission process, and enable the ultrasonic wave to better detect.

[0003] In a conventional trace coupling water supply system, the coupling agent tank needs to be injected towards the inside of the nuclear power pipeline. However, due to the viscosity of the coupling agent itself, air bubbles are easily generated. Moreover, the space inside the nuclear power pipeline is narrow, and air bubbles cannot be removed by manual spreading. The residual air bubbles will affect the subsequent ultrasonic inspection. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application aims to provide a nuclear power pipeline detection trace coupling water supply system to solve the problems raised in the background art. The present application can efficiently remove the air bubbles generated in the coupling agent, improve the accuracy of the final detection, and simplify the preparation process.

[0005] To achieve the above-mentioned purpose, the present application is implemented by the following technical solution: a nuclear power pipeline detection trace coupling water supply system, comprising a support, a coupling solvent tank, a buffer mechanism, a reflux unit, a conveying unit and a centrifugal system, a partition is installed on the top of the support, a coupling solvent tank is installed on one side of the partition, a centrifugal system is arranged on the other side of the partition, a buffer mechanism is installed at the end of the centrifugal system, a reflux unit is arranged on the top of the partition, a conveying unit is installed on the bottom side of the partition, the reflux unit is connected to the top of the buffer mechanism, the conveying unit is connected to the bottom of the buffer mechanism, and one end of the centrifugal system passes through the middle position of the partition and is inserted into the inside of the coupling solvent tank.

[0006] Further, the centrifugal system comprises a hollow shaft and a rotating disc, a driving motor is installed at one end of the hollow shaft, a motor box is arranged on the side of the coupling solvent tank, the other end of the hollow shaft is connected with the rotating disc, grooves are arranged on the surface and inside of the rotating disc, and a through hole is arranged on the surface of the hollow shaft.

[0007] Further, the through hole area of the surface of the hollow shaft is hidden inside the coupling solvent tank, the driving motor is fixedly installed inside the motor tank, and the recessed area of the surface of the rotating disc is in a fan-shaped structure.

[0008] Further, the surface of the hollow shaft is sleeved with a supporting bearing, and the surface of the supporting bearing is attached with a sealing layer, and the supporting bearing is embedded in the inner side of the partition plate.

[0009] Further, the buffer mechanism comprises a buffer tank and an exhaust passage, the side bottom of the buffer tank is connected with a discharge port, the top of the buffer tank is provided with a center column, the top of the center column is connected with the exhaust passage, and the top of the exhaust passage is provided with a feeding port.

[0010] Further, the feeding port is internally installed with a feeding valve, the discharge port is internally installed with a discharge valve, one side of the center column is connected with a butt joint pipe, the butt joint pipe is embedded into the inside of the hollow shaft, the buffer tank is hidden inside the recess, and the buffer mechanism rotates synchronously with the rotating disc.

[0011] Further, the reflux unit mainly comprises a first pressure pump, the top of the first pressure pump is connected with a first reflux pipeline, and the side of the first pressure pump is connected with a second reflux pipeline.

[0012] Further, the first reflux pipeline is connected with the tail end of the nuclear power pipeline, and the second reflux pipeline is connected with the feeding port.

[0013] Further, the conveying unit mainly comprises a second pressure pump, the side of the second pressure pump is connected with a first conveying pipeline and a second conveying pipeline, the bottom side of the partition plate is welded with a supporting plate, and the second pressure pump is fixedly installed on the surface of the supporting plate.

[0014] Further, the first conveying pipeline is connected with the discharge port, and the second conveying pipeline is connected with the injection port of the nuclear power pipeline.

[0015] The beneficial effects of the present application are as follows:

[0016] The nuclear power pipeline detection trace coupling water supply system is increased with a centrifugal system, the part of the coupling solution injected into the buffer mechanism is eliminated in bubbles through centrifugal motion, so that after the coupling solution with eliminated bubbles is sent into the inside of the nuclear power pipeline through the conveying unit, the ultrasonic probe and the inner wall of the pipeline can be always completely filled with enough coupling solution medium, and the reliability of the test is improved.

[0017] The trace coupling water supply system for nuclear power pipeline detection is communicated with the conveying unit and the backflow unit part through the independent discharge port and the feeding port at the top and the bottom of the buffer mechanism respectively, and is controlled through the independent valve, so that the worker only needs to control the connection state of two pipes in the whole centrifugal, feeding and recovery process, and the operation process is simple and convenient.

[0018] The trace coupling water supply system for nuclear power pipeline detection is communicated with the conveying unit and the backflow unit part through the independent discharge port and the feeding port at the top and the bottom of the buffer mechanism respectively, and is controlled through the independent valve, so that the worker only needs to control the connection state of two pipes in the whole centrifugal, feeding and recovery process, and the operation process is simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic view of the appearance of the trace coupling water supply system for nuclear power pipeline detection.

[0020] Figure 2 It is a structure schematic view of the buffer mechanism part of the trace coupling water supply system for nuclear power pipeline detection.

[0021] Figure 3 It is a structure schematic view of the centrifugal system part.

[0022] Figure 4 It is a structure schematic view of the backflow unit part of the trace coupling water supply system for nuclear power pipeline detection.

[0023] Figure 5 It is a structure schematic view of the conveying unit part of the trace coupling water supply system for nuclear power pipeline detection.

[0024] In the figure: 1, support; 2, partition; 3, coupling solvent tank; 4, backflow unit; 5, conveying unit; 6, centrifugal system; 7, buffer mechanism; 8, motor box; 9, buffer tank; 10, center column; 11, butt joint pipe; 12, discharge port; 13, discharge valve; 14, exhaust passage; 15, feeding valve; 16, feeding port; 17, driving motor; 18, hollow shaft; 19, through hole; 20, supporting bearing; 21, sealing layer; 22, rotating disc; 23, groove; 24, first pressure pump; 25, first backflow pipeline; 26, second backflow pipeline; 27, supporting plate; 28, second pressure pump; 29, first conveying pipeline; 30, second conveying pipeline. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in combination with specific embodiments.

[0026] Please refer to Figures 1 to 5The application provides a technical scheme: a nuclear power pipeline detection trace coupling water supply system, which comprises a support 1, a coupling solvent tank 3, a buffer mechanism 7, a backflow unit 4, a conveying unit 5 and a centrifugal system 6, the top of the support 1 is provided with a partition plate 2, one side of the partition plate 2 is provided with the coupling solvent tank 3, the other side of the partition plate 2 is provided with the centrifugal system 6, the end of the centrifugal system 6 is provided with the buffer mechanism 7, the top of the partition plate 2 is provided with the backflow unit 4, the bottom side of the partition plate 2 is provided with the conveying unit 5, the backflow unit 4 is connected with the top of the buffer mechanism 7, the conveying unit 5 is connected with the bottom of the buffer mechanism 7, one end of the centrifugal system 6 penetrates through the middle position of the partition plate 2 and is inserted into the inside of the coupling solvent tank 3, the nuclear power pipeline detection trace coupling water supply system mainly uses the conveying unit 5 to convey the coupling solvent into the inside of the nuclear power pipeline, fills the nuclear power pipeline and then inserts the ultrasonic probe into the nuclear power pipeline, tests the inside wall of the nuclear power pipeline by using ultrasonic waves, improves the adhesion between the probe and the inside wall of the pipeline by using the coupling solvent, and when used, the solution in the buffer mechanism 7 is rotated and centrifuged by the centrifugal system 6, the bubbles in the coupling solvent in the buffer tank 9 are removed, then the buffer tank 9 is connected with the conveying unit 5 at the bottom, and the coupling solvent after the bubbles are removed is directly conveyed into the inside of the nuclear power pipeline by the conveying unit 5 for subsequent detection.

[0027] In the embodiment, the centrifugal system 6 comprises a hollow shaft 18 and a rotating disc 22, one end of the hollow shaft 18 is provided with a driving motor 17, the side of the coupling solvent tank 3 is provided with a motor box 8, the other end of the hollow shaft 18 is connected with the rotating disc 22, the surface and the inside of the rotating disc 22 are provided with grooves 23, the surface of the hollow shaft 18 is provided with through holes 19, the through hole 19 area of the surface of the hollow shaft 18 is hidden in the inside of the coupling solvent tank 3, the driving motor 17 is integrally fixedly installed in the inside of the motor box 8, the groove 23 area of the surface of the rotating disc 22 is in a fan-shaped structure, the surface of the hollow shaft 18 is provided with a support bearing 20, and the surface of the support bearing 20 is attached with a sealing layer 21, the support bearing 20 is embedded in the inside of the partition plate 2, the part of the coupling solution injected into the inside of the buffer mechanism 7 is bubble-removed through centrifugal motion, so that after the coupling solution after the bubbles are removed is sent into the inside of the nuclear power pipeline through the conveying unit 5, the ultrasonic probe and the inside wall of the pipeline can be completely filled with enough coupling solution medium at all times, and the reliability of the test is improved, specifically, after the driving motor 17 is started, the whole hollow shaft 18 can be driven to rotate, the end of the hollow shaft 18 rotates with the rotating disc 22, and then the whole buffer mechanism 7 is driven to rotate by the rotating disc 22, so that the centrifugal effect is generated and the subsequent centrifugal treatment is completed.

[0028] The buffer mechanism 7 comprises a buffer tank 9 and an exhaust passage 14. The side bottom of the buffer tank 9 is connected with a discharge port 12. The top of the buffer tank 9 is provided with a center column 10. The top of the center column 10 is connected with the exhaust passage 14. The top of the exhaust passage 14 is provided with a feeding port 16. The feeding port 16 is internally provided with a feeding valve 15. The discharge port 12 is internally provided with a discharge valve 13. One side of the center column 10 is connected with a butt joint pipe 11. The butt joint pipe 11 is integrally embedded into the inside of a hollow shaft 18. The buffer tank 9 is integrally hidden in the inside of a groove 23. The buffer mechanism 7 rotates synchronously with a rotating disc 22. The inside of the coupling solvent tank 3 is directly communicated with the inside of the buffer tank 9 through the hollow shaft 18 of the centrifugal system 6. Therefore, the coupling solvent after single centrifugation can be automatically supplemented with subsequent solvent, so that the centrifugal treatment can be quickly performed again. The feeding process is simplified. Since the buffer tank 9 is integrally embedded into the inside of the groove 23, the rotating disc 22 can be driven to rotate by the driving motor 17. The buffer mechanism 7 can be rotated by the rotating disc 22. The coupling solvent in the buffer tank 9 can be extruded to the edge under the centrifugal action, so that the bubbles in the inside are extruded to the middle, so that the bubble discharge process is completed. The inside of the butt joint pipe 11 is always connected with the hollow shaft 18. Therefore, the coupling solvent in the coupling solvent tank 3 can enter into the inside of the hollow shaft 18 from the through hole 19, and then enter into the inside of the buffer tank 9 through the butt joint pipe 11.

[0029] The backflow unit 4 is mainly composed of a first pressure pump 24, the top of the first pressure pump 24 is connected with a first backflow pipeline 25, the side of the first pressure pump 24 is connected with a second backflow pipeline 26, the first backflow pipeline 25 is connected with the end of the nuclear power pipeline, and the second backflow pipeline 26 is connected with the feeding port 16; the conveying unit 5 is mainly composed of a second pressure pump 28, the side of the second pressure pump 28 is connected with a first conveying pipeline 29 and a second conveying pipeline 30, the bottom side of the partition plate 2 is welded with a supporting plate 27, the second pressure pump 28 is fixedly installed on the surface of the supporting plate 27, the first conveying pipeline 29 is connected with the discharging port 12, the second conveying pipeline 30 is connected with the injection port of the nuclear power pipeline, the top and bottom of the buffer mechanism 7 are respectively connected with the conveying unit 5 and the backflow unit 4 through independent discharging ports 12 and feeding ports 16, and are controlled through independent valves, so that in the whole centrifugal, feeding and recovery process, the workers only need to control the connection state of two pipelines, the operation process is simple and convenient, and specifically, after the discharging port 12 is connected with the first conveying pipeline 29, the discharging valve 13 and the second pressure pump 28 are opened, the coupling solvent after centrifugation can be injected into the inside of the nuclear power pipeline along the discharging port 12, the first conveying pipeline 29 and the second conveying pipeline 30, and then the coupling solvent in the nuclear power pipeline is drawn into the inside of the buffer mechanism 7 through the first pressure pump 24 at the top, and after the injection of the coupling solvent after removing the bubbles is completed, the discharging port 12 and the feeding port 16 are directly disconnected, the valves are closed, and then the driving motor 17 is started to perform the subsequent centrifugal preparation process again.

[0030] The basic principles and main features of the present application and the advantages of the present application are shown and described above, and it is obvious for those skilled in the art that the present application is not limited to the details of the above-mentioned exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0031] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A nuclear power plant pipeline inspection micro-coupled water supply system, characterized by: The utility model relates to a nuclear power plant coupling solvent tank, including support (1), coupling solvent tank (3), buffer mechanism (7), backflow unit (4), conveying unit (5) and centrifugal system (6), the top of support (1) is installed with the baffle (2), one side of baffle (2) is installed with coupling solvent tank (3), the other side of baffle (2) is provided with centrifugal system (6), the end of centrifugal system (6) is installed with buffer mechanism (7), the top of baffle (2) is provided with backflow unit (4), the bottom side edge of baffle (2) is installed with conveying unit (5), backflow unit (4) is connected with the top of buffer mechanism (7), conveying unit (5) is connected with the bottom of buffer mechanism (7), one end of centrifugal system (6) passes through the middle position of baffle (2) and inserts to the inside of coupling solvent tank (3), centrifugal system (6) includes hollow shaft (18) and carousel (22), one end of hollow shaft (18) is installed with drive motor (17), the side of coupling solvent tank (3) is provided with motor box (8), the other end of hollow shaft (18) is connected with carousel (22), the surface and inside of carousel (22) are provided with recess (23), the surface of hollow shaft (18) is provided with through -hole (19), the area of through -hole (19) of hollow shaft (18) surface is hidden in the inside of coupling solvent tank (3), drive motor (17) is integrally fixed in the inside of motor box (8), the area of recess (23) of carousel (22) surface is fan -shaped structure, the surface of hollow shaft (18) is provided with support bearing (20), and the surface of support bearing (20) is attached with sealing layer (21), support bearing (20) is embedded in the inside of baffle (2), buffer mechanism (7) includes buffer tank (9) and exhaust passage (14), the bottom of side edge of buffer tank (9) is connected with discharge port (12), the top of buffer tank (9) is provided with center column (10), the top of center column (10) is connected with exhaust passage (14), the top of exhaust passage (14) is provided with feed inlet (16).

2. A trace water supply system for nuclear power piping inspection micro-coupling according to claim 1, characterized in that: The inside of feed inlet (16) is installed with feed valve (15), the inside of discharge port (12) is installed with discharge valve (13), one side of center column (10) is connected with butt joint pipe (11), butt joint pipe (11) is integrally embedded to the inside of hollow shaft (18), buffer tank (9) is hidden in the inside of recess (23) entirely, and buffer mechanism (7) and carousel (22) carry out synchronous rotation.

3. The trace water supply system for nuclear power pipeline inspection micro-coupling according to claim 1, characterized in that: The backflow unit (4) is mainly composed of the first pressure pump (24), and the first pressure pump (24) is connected with the first backflow pipeline (25) on the top.

4. A trace water supply system for nuclear power piping inspection micro-coupling according to claim 3, characterized in that: The first backflow pipeline (25) is connected with the end of the nuclear power pipeline, and the second backflow pipeline (26) is connected with the part of the feed inlet (16).

5. The trace water supply system for nuclear power pipeline inspection micro-coupling according to claim 1, characterized in that: The conveying unit (5) is mainly composed of a second pressure pump (28), the side of the second pressure pump (28) is connected with a first conveying pipeline (29) and a second conveying pipeline (30), the bottom side of the partition plate (2) is welded with a supporting plate (27), and the second pressure pump (28) is fixedly installed on the surface of the supporting plate (27).

6. A trace water supply system for nuclear power piping inspection micro-coupling according to claim 5, characterized in that: The first conveying pipeline (29) is connected with the discharge port (12), and the second conveying pipeline (30) is connected with the injection port of the nuclear power pipeline.

Images