A method and apparatus for installing a pipe in a nuclear power construction

Abstract

The application discloses a pipeline installation method and equipment in nuclear power construction and belongs to the technical field of nuclear power engineering. The pipeline installation method comprises a main pipeline, an electric cylinder and a fixing ring. The electric cylinder is arranged on the inner side of the main pipeline, and the fixing ring is connected with two connecting rings on the two sides. The fixing ring and the two connecting rings are connected into a guide groove. The guide groove is slidably connected with the inner wall of the main pipeline, and an annular cleaning device is connected with the inner side of the guide groove. The lower end of a protective shell is slidably connected with the outer side of the connecting ring, and the side surface of the protective shell is slidably connected with the main pipeline. One end of a spiral rod is arranged through the side surface of the protective shell and is threadedly connected with the protective shell. The lower end of the spiral rod is rotatably connected with a sliding rod. The sliding rod is slidably connected with the side surface of the fixing ring, and a motor position is arranged in the protective shell. The output shaft of the motor is arranged through a first pulley and a first roller and is fixedly connected with the first pulley and the first roller. The problems that the cleaning device in the existing device is usually cleaned by a high-pressure water gun, water residues and water stains are caused, and the existing device is fixedly arranged and cannot adapt to pipelines with different diameters are solved.

Description

Technical Field

[0001] This invention belongs to the field of nuclear power engineering technology, specifically relating to a pipeline installation method and equipment in nuclear power construction. Background Technology

[0002] Nuclear power pipelines play a crucial role as an important component of nuclear power systems. Their design, installation, operation, and maintenance are of paramount importance for the safe, stable, and efficient operation of nuclear power plants. Nuclear power pipelines perform a vital heat exchange function within a nuclear power plant. The high-temperature, high-pressure steam generated in the nuclear reactor needs to be transferred through the pipeline system to the steam turbine for power generation, while the low-temperature, low-pressure steam generated by the steam turbine needs to be returned to the steam generator for recycling through the pipeline system. In this process, the pipeline system must possess high strength and resistance to high temperature and pressure to ensure no leakage or corrosion occurs under high temperature and pressure conditions, thus guaranteeing the efficient heat transfer of the nuclear power plant.

[0003] Effective foreign object management is crucial during pipeline system installation to minimize contamination and damage to the system or equipment during installation and commissioning. However, existing cleaning devices typically use high-pressure water guns, which leave moisture and water stains, and these fixed installations are not adaptable to pipes of different diameters. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a pipeline installation method and equipment in nuclear power plant construction, so as to solve the problems that the existing cleaning devices usually use high-pressure water guns for cleaning, which results in water residue and water stains, and the existing devices are fixed and cannot adapt to pipes of different diameters.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention discloses a pipeline installation method and equipment for nuclear power plant construction, comprising a main pipeline, an electric cylinder, and a fixing ring. The electric cylinder is disposed inside the main pipeline. Connecting rings are connected to both sides of the fixing ring. The fixing ring and the two connecting rings form a guide groove, which is slidably connected to the inner wall of the main pipeline. An annular cleaning device is connected to the inner side of the guide groove. The annular cleaning device includes: a protective shell, a motor, a first roller, a second roller, a first pulley, a second pulley, a spiral rod, a sliding rod, a rotating shaft, a grinding roller, and a connecting rod. The lower end of the protective shell slides against the outer side of the connecting ring, and the side of the protective shell slides against the main pipeline. One end of the spiral rod passes through the side of the protective shell and connects with... The protective shell is threaded. The lower end of the spiral rod is rotatably connected to the sliding rod. The sliding rod is slidably connected to the side of the fixed ring. The motor is located inside the protective shell. The motor output shaft passes through and is fixedly connected to the first pulley and the first roller. One side of the first roller is located in the guide groove. One end of the connecting rod is rotatably connected to the motor output shaft. The other end of the connecting rod is rotatably connected to the rotating shaft. The rotating shaft passes through and is fixedly connected to the second pulley and the second roller. A belt is connected between the second pulley and the first pulley. One side of the second roller is located in the guide groove. The lower end of the rotating shaft is fixedly connected to the grinding roller. An adjustment device is rotatably connected to the upper part of the rotating shaft.

[0007] Furthermore, the adjustment device includes: a rotating plate, a rotating rod, a rotating disk, and a fixed rod. The upper end of the rotating shaft is rotatably connected to the rotating plate, one end of the rotating rod is fixedly connected to the rotating plate, the rotating rod passes through the protective shell and is rotatably connected to the protective shell, the upper end of the rotating rod is fixedly connected to the rotating disk, both the rotating disk and the protective shell are provided with positioning holes, and the fixed rod passes through the positioning holes.

[0008] Furthermore, friction strips are provided on the outer side of the grinding roller.

[0009] Furthermore, there are multiple positioning holes.

[0010] Furthermore, a polishing rod is connected to the side of the protective shell.

[0011] Furthermore, a vacuum cleaner is connected to the other side of the protective shell, and the vacuum cleaner's suction port is close to the main pipe.

[0012] Furthermore, the diameter of the first pulley is larger than the diameter of the second pulley.

[0013] The beneficial effects of this invention are as follows:

[0014] This invention discloses a pipeline installation method and equipment in nuclear power plant construction. A guide groove is formed by splicing a fixed ring and a connecting ring, allowing an annular cleaning device to clean the inner side of the main pipeline around the guide groove. A sliding rod rolls against the outer side of the connecting ring, and a first roller rolls against the guide groove, causing protective shells and other components to adhere to the inner side of the main pipeline. A motor drives the protective shells and other components to move, which in turn drives a first pulley to rotate. The first pulley drives a second pulley to rotate, with the second pulley rotating faster than the first pulley, thus causing the grinding roller to rotate rapidly and remove impurities from the main pipeline. The movement of the protective shell causes a polishing dryer to move, removing any remaining friction marks from the ground main pipe. A vacuum cleaner then removes dust and impurities. An adjustment device adjusts the angle of the second rollers and other components, allowing the second roller and grinding roller to rotate at an angle suitable for main pipelines of different diameters.

[0015] Other advantages, objectives, and features of the invention will be set forth in the following description and will be apparent to those skilled in the art in some respects, or may be learned by practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0016] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration:

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 For the present invention Figure 1 Enlarged view at point A in the middle;

[0019] Figure 3 This is a side view of the present invention;

[0020] Figure 4 For the present invention Figure 2 Enlarged view at point B;

[0021] Figure 5 This is a schematic diagram of the polishing rod and other components of the present invention;

[0022] Figure 6 For the present invention Figure 5 Enlarged view at point C.

[0023] The following are the markings in the attached diagram: 1. Main pipe; 2. Fixing ring; 3. Connecting ring; 4. Guide groove; 5. Electric cylinder; 6. Annular cleaning device; 61. Protective shell; 62. Motor; 63. First roller; 64. Second roller; 65. Spiral rod; 66. Rotating shaft; 67. Connecting rod; 68. First pulley; 69. Second pulley; 610. Grinding roller; 611. Sliding rod; 7. Belt; 8. Friction strip; 9. Adjusting device; 91. Rotating plate; 92. Rotating disk; 93. Positioning hole; 94. Fixing rod; 95. Rotating rod; 10. Polishing rod; 11. Dust suction port; 12. Vacuum cleaner. Detailed Implementation

[0024] like Figures 1-5 As shown, this invention discloses a pipeline installation method and equipment for nuclear power plant construction, comprising a main pipeline 1, an electric cylinder 5, and a fixing ring 2. The electric cylinder 5 is disposed inside the main pipeline 1 and is used to push the connecting ring 3 to slide the fixing ring 2. Connecting rings 3 are connected to both sides of the fixing ring 2, and the fixing ring 2 and the two connecting rings 3 are connected to form a guide groove 4. The guide groove 4 is slidably connected to the inner wall of the main pipeline 1, allowing the guide groove 4 to slide within the main pipeline 1. An annular cleaning device 6 is connected to the inner side of the guide groove 4, which can clean impurities, burrs, and other substances from the inner wall of the main tank.

[0025] The annular cleaning device 6 includes: a protective shell 61, a motor 62, a first roller 63, a second roller 64, a first pulley 68, a second pulley 69, a spiral rod 65, a sliding rod 611, a rotating shaft 66, a polishing roller 610, and a connecting rod 67. The lower end of the protective shell 61 slides against the outer side of the connecting ring 3, and the side of the protective shell 61 slides against the main pipe 1. A polishing rod 10 is connected to the other side of the protective shell 61 to polish the inner side of the main pipe 1. One end of the spiral rod 65 passes through the side of the protective shell 61 and is threadedly connected to the protective shell 61. The lower end of the spiral rod 65 is rotatably connected to the sliding rod 611, thereby driving the sliding rod 611 to move vertically. The sliding rod 611 is slidably connected to the side of the fixed ring 2, and the sliding rod 611 and the first roller 63 act as a limit to prevent the protective shell 61 from sliding out of the guide groove 4. The motor 62 is located inside the protective shell 61. The output shaft of the motor 62 passes through and is fixedly connected to the first pulley 68 and the first roller 63, driving the first pulley 68 and the first roller 63 to rotate. One side of the first roller 63 is located in the guide groove 4, and the first roller 63 rotates in the guide groove 4 to drive the protective shell 61 and other components to move. One end of the connecting rod 67 is rotatably connected to the output shaft of the motor 62, and the other end of the connecting rod 67 is rotatably connected to the rotating shaft 66, making the rotating shaft 66 more stable. The rotating shaft 66 passes through and is fixedly connected to the second pulley 69 and the second roller 64. A belt 7 connects the second pulley 69 and the first pulley 68, driving the second pulley 69 and the second roller 64 to rotate. The diameter of the first pulley 68 is larger than the diameter of the second pulley 69. When the first pulley 68 rotates once, the second pulley 69 rotates multiple times, thereby increasing the rotational speed of the second pulley 69. The second roller 64 is located in the guide groove 4 on one side and rotates within the guide groove 4. The lower end of the rotating shaft 66 is fixedly connected to the grinding roller 610, and the rotating shaft 66 drives the grinding roller 610 to rotate. The outer side of the grinding roller 610 is provided with friction strips 8 for grinding the inner wall of the main pipe 1. An adjustment device 9 for adjusting the angle of the grinding roller 610 is rotatably connected to the upper part of the rotating shaft 66. A vacuum cleaner 12 is connected to the other side of the protective shell 61, and the suction port 11 of the vacuum cleaner 12 is close to the main pipe 1 to suck up dust from the inner wall of the main pipe 1.

[0026] The working principle of the above scheme is as follows: The diameter of the main pipe 1 is measured to create a fixing ring 2 that fits the main pipe 1, allowing the fixing ring 2 to slide within the main pipe 1. The protective shell 61 is then placed outside the connecting ring 3, and the first roller 63 is placed in the guide groove 4. The screw rod 65 is then rotated, causing the sliding rod 611 to extend outside the connecting ring 3 to fix the protective shell 61 and prevent it from sliding out. The second roller 64 is then placed into the guide groove 4 via the adjusting device 9. At this point, the first motor 62 drives the first roller 63 and the first pulley 68 to rotate. The rotation of the first roller 63 causes the protective shell 61 to move along the guide groove 4. The rotation of the first pulley 68 causes the second pulley 69 and the second roller 64 to rotate, causing components such as the rotating shaft 66 to move accordingly. The rotating shaft 66 drives the grinding roller 610 to rotate, polishing the impurities on the inside of the main pipe 1. The polishing rod 10 then cleans the burrs and scratches on the inner wall of the main pipe 1, and the impurities and dust on the inner wall are sucked into the vacuum cleaner 12 through the suction port 11. After the main pipe 1 is cleaned, the electric cylinder 5 is used to push the fixed ring 2 to slide, so as to clean the remaining uncleaned parts of the main pipe 1.

[0027] The beneficial effects of the above solution are as follows: By splicing the fixed ring 2 and the connecting ring 3 to form the guide groove 4, the annular cleaning device 6 can clean the inside of the main pipe 1 around the guide groove 4; by the sliding rod 611 rolling on the outside of the connecting ring 3, and the first roller 63 rolling on the guide groove 4, the protective shell 61 and other components are made to fit against the inside of the main pipe 1; by the motor 62 driving the protective shell 61 and other components to move, and then by the motor 62 driving the first pulley 68 to rotate, the first pulley 68 driving the second pulley 69 to rotate, and the second pulley 69 rotating faster than the first pulley 68, so that the polishing roller 610 rotates quickly to remove impurities from the inside of the main pipe 1; by the movement of the protective shell 61 driving the polishing roller to move, the friction marks remaining on the main pipe after polishing are removed, and then the dust and impurities are sucked out by the vacuum cleaner 12.

[0028] In one embodiment of the present invention, such as Figures 1-6 As shown, the adjusting device 9 includes: a rotating plate 91, a rotating rod 95, a rotating disk 92, and a fixed rod 94. The upper end of the rotating shaft 66 is rotatably connected to the rotating plate 91, and one end of the rotating rod 95 is fixedly connected to the rotating plate 91, driving the rotating plate 91 to rotate. The rotating rod 95 passes through the protective shell 61 and is rotatably connected to it. The upper end of the rotating rod 95 is fixedly connected to the rotating disk 92, which drives the rotating rod 95 to rotate. Both the rotating disk 92 and the protective shell 61 have positioning holes 93. The fixed rod 94 passes through the positioning holes 93 to adjust and fix the angle between the positioning disk and the rotating rod 95. There are multiple positioning holes 93.

[0029] The working principle of the above scheme is as follows: After the first roller 63 is placed in the guide groove 4, the rotating plate 91 is raised so that the second roller 64 is higher than the guide groove 4. Then, the second roller 64 is lowered so that it is located in the guide groove 4. At this time, the fixing rod 94 is inserted into the positioning hole 93 to fix the rotating disk 92, so that the rotating rod 95 and the rotating plate 91 no longer move, and the second roller 64 is always located in the guide groove 4.

[0030] The beneficial effects of the above scheme are: by adjusting the device 9, the angle of components such as the second roller 64 can be adjusted so that the second roller 64 and the grinding roller 610 can rotate and adjust the angle to adapt to the main pipe 1 of different diameters.

[0031] In one embodiment of the present invention, such as Figures 1-6 As shown, it includes the following steps:

[0032] S1: Measure the diameter of the main pipe 1 to make a fixing ring 2 that fits the main pipe 1, so that the fixing ring 2 can slide inside the main pipe 1;

[0033] S2: Place the protective shell 61 on the outside of the connecting ring 3, and place the first roller 63 in the guide groove 4. Then, fix the protective shell 61 to the outside of the connecting ring 3 by means of the sliding rod 611 and the first roller 63;

[0034] S3: The first motor 62 drives the first roller 63 and the first pulley 68 to rotate. The rotation of the first roller 63 causes the protective shell 61 to move along the guide groove 4. The second roller 64 is placed into the guide groove 4 by the adjusting device 9.

[0035] S4: The second roller 64, the rotating shaft 66 and the grinding roller 610 rotate to grind the impurities inside the main pipe 1;

[0036] S5: Then, use the polishing rod 10 to polish the burrs and scratches on the inner wall of the main pipe 1, and suck the impurities and dust on the inner wall into the vacuum cleaner 12 through the suction port 11.

[0037] S6: After the main pipe 1 is cleaned, the electric cylinder 5 is used to push the fixed ring 2 to slide, so as to clean the remaining uncleaned parts of the main pipe 1.

[0038] S7: After the first roller 63 is placed in the guide groove 4, the rotating plate 91 is raised so that the second roller 64 is higher than the guide groove 4; then the second roller 64 is lowered so that it is located in the guide groove 4; then the fixing rod 94 is inserted into the positioning hole 93 to fix the rotating plate 92, so that the rotating rod 95 and the rotating plate 91 no longer move, and the second roller 64 is always located in the guide groove 4.

[0039] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A pipe installation apparatus in a nuclear power construction, characterized by: The utility model relates to a kind of circular cleaning devices, including main pipe (1), electric cylinder (5) and fixed ring (2), the electric cylinder (5) is arranged in main pipe (1) inside, the fixed ring (2) both sides are connected with connecting ring (3), the fixed ring (2) is connected with two connecting rings (3) into guide slot (4), the guide slot (4) is slidably connected with main pipe (1) inner wall, annular cleaning device (6) is connected in the guide slot (4) inside, annular cleaning device (6) includes: protective shell (61), motor (62), first roller (63), second roller (64), first pulley (68), second pulley (69), screw rod (65), sliding rod (611), pivot (66), polishing roller (610) and connecting rod (67), the lower end of protective shell (61) is slid with the outside of connecting ring (3), the side of protective shell (61) is slid with main pipe (1), one end of screw rod (65) is arranged through the side of protective shell (61) and is threadedly connected with protective shell (61), the lower end of screw rod (65) is rotatably connected with sliding rod (611), the side of sliding rod (611) is slidably connected with fixed ring (2), motor (62) is located in protective shell (61), the output shaft of motor (62) is arranged through first pulley (68) and first roller (63) and is fixedly connected with first pulley (68) and first roller (63), the side of first roller (63) is located in guide slot (4), one end of connecting rod (67) is rotatably connected with the output shaft of motor (62), the other end of connecting rod (67) is rotatably connected with pivot (66), pivot (66) is arranged through second pulley (69) and second roller (64) and is fixedly connected with second pulley (69) and second roller (64), belt (7) is connected between second pulley (69) and first pulley (68), the side of second roller (64) is located in guide slot (4), the lower end of pivot (66) is fixedly connected with polishing roller (610), and pivot (66) upper portion is rotatably connected with adjusting device (9);The adjusting device (9) includes: rotating plate (91), rotating rod (95), rotating disc (92) and fixed rod (94), the upper end of pivot (66) is rotatably connected with rotating plate (91), one end of rotating rod (95) is fixedly connected with rotating plate (91), rotating rod (95) is arranged through protective shell (61) and is rotatably connected with protective shell (61), the upper end of rotating rod (95) is fixedly connected with rotating disc (92), rotating disc (92) and protective shell (61) are all provided with positioning hole (93), and fixed rod (94) is arranged through positioning hole (93).

2. A pipe installation apparatus in nuclear power construction according to claim 1, characterized in that: Friction strip (8) is arranged outside the polishing roller (610).

3. The pipe installation apparatus in nuclear power construction according to claim 1, wherein: The positioning hole (93) has multiple.

4. The pipe installation apparatus for nuclear power plant construction according to claim 1, characterized by: The side of the protective shell (61) is connected with the polishing rod (10).

5. The pipe installation apparatus for nuclear power plant construction according to claim 1, wherein: The other side of the protective shell (61) is connected with the dust collector (12), and the dust suction port (11) of the dust collector (12) is close to the main pipe (1).

6. A pipe installation apparatus in nuclear power construction according to claim 1, characterized in that: The diameter of the first pulley (68) is greater than the diameter of the second pulley (69).

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