Pipeline installation method and equipment in nuclear power construction

Abstract

The invention discloses a pipeline installation method and equipment in nuclear power construction, and belongs to the technical field of nuclear power engineering. Comprising a main pipeline, an electric cylinder and a fixing ring. The electric cylinder is arranged on the inner side of the main pipeline, connecting rings are connected to the two sides of the fixing ring, and the fixing ring and the two connecting rings are connected to form a guide groove. The guide groove is slidably connected with the inner wall of the main pipeline, and the inner side of the guide groove is connected with an annular cleaning device. The lower end of the protective shell slides on the outer side of the connecting ring, and the side face of the protective shell slides on the main pipeline. One end of the screw rod penetrates through the side surface of the protective shell and is in threaded connection with the protective shell; the lower end of the screw rod is rotationally connected with the sliding rod. The sliding rod is slidably connected with the side face of the fixing ring. And an output shaft of the motor penetrates through the first belt wheel and the first roller and is fixedly connected with the first belt wheel and the first roller. The problems that in an existing device, a cleaning device usually conducts cleaning through a high-pressure water gun, water residues and water stain residues are caused, and the existing device is fixedly arranged and cannot adapt to pipelines with different diameters are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of nuclear power engineering, and in particular relates to a pipeline installation method and equipment in nuclear power construction. Background Art

[0002] As an important part of the nuclear power system, nuclear power pipelines play a key role. The design, installation, operation and maintenance of nuclear power pipelines are of vital importance to the safe, stable and efficient operation of nuclear power plants. Nuclear power pipelines play an important heat exchange function in nuclear power plants. The high-temperature and high-pressure steam generated in the nuclear reactor needs to be transferred to the steam turbine through the pipeline system to generate electricity, while the low-temperature and low-pressure steam generated by the steam turbine needs to be returned to the steam generator through the pipeline system for recycling. In this process, the pipeline system needs to have high strength and high temperature and high pressure resistance to ensure that no leakage and corrosion occur under high temperature and high pressure conditions, and to ensure the thermal energy transfer efficiency of the nuclear power plant.

[0003] During the installation of the pipeline system, effective foreign body management can minimize the contamination and damage of the system or equipment during the installation and commissioning process. However, the existing cleaning devices usually use high-pressure water guns for cleaning, which causes residual moisture and water stains, and the existing devices are fixed and cannot adapt 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 construction to solve the problem that the cleaning device in the existing device is usually cleaned by a high-pressure water gun, which causes residual moisture and water stains, and the existing device is a fixed setting and cannot adapt to pipelines of different diameters.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] The present invention discloses a pipeline installation method and equipment in nuclear power construction, including a main pipeline, an electric cylinder and a fixed ring, wherein the electric cylinder is arranged on the inner side of the main pipeline, connecting rings are connected to both sides of the fixing ring, the fixing ring and the two connecting rings are connected to form a guide groove, the guide groove 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, and 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 with the outer side of the connecting ring, the side surface of the protective shell slides with the main pipeline, one end of the spiral rod passes through the side surface of the protective shell and is connected to the main pipeline The protective shell is threadedly connected, 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 in the protective shell, the motor output shaft passes through the first pulley and the first roller and is fixedly connected thereto, 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 the second pulley and the second roller and is fixedly connected thereto, 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, and the upper part of the rotating shaft is rotatably connected with an adjusting device.

[0007] Furthermore, the adjusting 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 a protective shell and is rotatably connected to the protective shell, the upper end of the rotating rod is fixedly connected to the rotating disk, the rotating disk and the protective shell are both provided with positioning holes, and the fixed rod passes through the positioning hole.

[0008] Furthermore, a friction strip is 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 suction port of the vacuum cleaner is close to the main pipeline.

[0012] Further, the diameter of the first pulley is greater than the diameter of the second pulley.

[0013] The beneficial effects of the present invention are:

[0014] The present invention provides a pipeline installation method and equipment in nuclear power construction. A guide groove is formed by splicing a fixing ring and a connecting ring, so that an annular cleaning device can clean the inner side of a main pipeline around the guide groove; a sliding rod rolls with the outer side of the connecting ring, and a first roller rolls with the guide groove to make a protective shell and other components fit the inner side of the main pipeline; a motor drives the protective shell and other components to move, and then the motor drives the first pulley to rotate, and the first pulley drives the second pulley to rotate, and the second pulley rotates faster than the first pulley, so that a grinding roller rotates quickly to remove impurities in the main pipeline; the protective shell moves and drives the polishing stem to move, so that the friction marks remaining on the main pipe after grinding are erased, and then the dust and impurities are sucked out by a vacuum cleaner; the angle of the second roller and other components is adjusted by an adjusting device, so that the second roller and the grinding roller rotate to adjust the angle to adapt to main pipelines of different diameters.

[0015] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

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

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

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

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

[0021] Figure 5 It 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 center C.

[0023] The markings in the attached drawings are as follows: 1. main pipeline; 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 DESCRIPTION

[0024] like Figures 1 to 5 As shown, a pipeline installation method and equipment in nuclear power construction of the present invention includes a main pipeline 1, an electric cylinder 5 and a fixing ring 2, wherein the electric cylinder 5 is arranged on the inner side of the main pipeline 1 to push the connecting ring 3 to slide the fixing ring 2. The fixing ring 2 is connected with connecting rings 3 on both sides, 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, so that the guide groove 4 can slide in the main pipeline 1. The inner side of the guide groove 4 is connected with an annular cleaning device 6, and the annular cleaning device 6 can clean impurities, burrs and other substances on 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 grinding roller 610 and a connecting rod 67. The lower end of the protective shell 61 slides with the outer side of the connecting ring 3, and the side of the protective shell 61 slides with the main pipe 1. The other side of the protective shell 61 is connected to a polishing rod 10 to grind and 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, and the spiral rod 65 drives 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 play a limiting role to prevent the protective shell 61 from sliding out of the guide groove 4. The motor 62 is located in the protective shell 61, and the output shaft of the motor 62 passes through the first pulley 68 and the first roller 63 and is fixedly connected thereto, and the motor 62 drives 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, and the connecting rod 67 makes the rotating shaft 66 more stable. The rotating shaft 66 passes through the second pulley 69 and the second roller 64 and is fixedly connected thereto, and a belt 7 is connected between the second pulley 69 and the first pulley 68, and the belt 7 drives 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, and the second pulley 69 will rotate multiple times when the first pulley 68 rotates one circle, thereby increasing the rotation speed of the second pulley 69. One side of the second roller 64 is located in the guide groove 4, and the second roller 64 rotates in 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 a friction strip 8 for grinding the inner wall of the main pipe 1. The upper part of the rotating shaft 66 is rotatably connected to an adjustment device 9 for adjusting the angle of the grinding roller 610. The other side of the protective shell 61 is connected to a vacuum cleaner 12, and the suction port 11 of the vacuum cleaner 12 is close to the main pipe 1 to absorb dust on the inner wall of the main pipe 1.

[0026] The working principle of the above scheme is as follows: the diameter of the main pipeline 1 is measured to make a fixed ring 2 adapted to the main pipeline 1, so that the fixed ring 2 can slide in the main pipeline 1. At this time, the protective shell 61 is placed outside the connecting ring 3, and the first roller 63 is placed in the guide groove 4. At this time, the spiral rod 65 is turned to make the sliding rod 611 extend outside the connecting ring 3 to fix the protective shell 61 to prevent the protective shell 61 from sliding out. At this time, the second roller 64 is placed in the guide groove 4 through the adjustment device 9, and the first motor 62 drives the first roller 63 and the first pulley 68 to rotate, and the first roller 63 rotates to move the protective shell 61 along the guide groove 4. The first pulley 68 rotates to rotate the second pulley 69 and the second roller 64 so that the rotating shaft 66 and other components move accordingly, and the rotating shaft 66 drives the grinding roller 610 to rotate to grind the impurities on the inner side of the main pipeline 1. Then, the burrs and grind marks on the inner wall of the main pipeline 1 are polished clean by the polishing rod 10, and the impurities and dust on the inner wall are sucked into the dust collector 12 through the dust suction port 11. When one circle of the main pipeline 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 pipeline 1.

[0027] The beneficial effects of the above scheme are as follows: the guide groove 4 is formed by splicing the fixing ring 2 and the connecting ring 3, so that the annular cleaning device 6 can clean the inside of the main pipe 1 around the guide groove 4; the sliding rod 611 rolls with the outer side of the connecting ring 3, and the first roller 63 rolls with the guide groove 4 to make the protective shell 61 and other components fit the inside of the main pipe 1; the motor 62 drives the protective shell 61 and other components to move, and then the motor 62 drives the first pulley 68 to rotate, the first pulley 68 drives the second pulley 69 to rotate, and the second pulley 69 rotates faster than the first pulley 68, so that the grinding roller 610 rotates quickly to remove impurities in the main pipe 1; the protective shell 61 moves and drives the polishing dry to move, thereby erasing the friction marks remaining on the main pipe after grinding, and then the dust and impurities are sucked out by the vacuum cleaner 12.

[0028] In one embodiment of the present invention, Figures 1 to 6 As shown, the adjustment 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, and the rotating rod 95 drives the rotating plate 91 to rotate. The rotating rod 95 passes through the protective shell 61 and is rotatably connected to the protective shell 61. The upper end of the rotating rod 95 is fixedly connected to the rotating disk 92, and the rotating disk 92 drives the rotating rod 95 to rotate. The rotating disk 92 and the protective shell 61 are both provided with positioning holes 93, and the fixed rod 94 passes through the positioning holes 93. The positioning holes 93 are used to adjust and fix the angles of the positioning disk and the rotating rod 95, and 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 lifted up so that the second roller 64 is higher than the guide groove 4. At this time, the second roller 64 is lowered so that the second roller 64 is located in the guide groove 4. At this time, the fixing rod 94 is inserted into the positioning hole 93, and the rotating disk 92 is fixed so that the rotating rod 95 and the rotating plate 91 do not move, so that the second roller 64 is always located in the guide groove 4.

[0030] The beneficial effect of the above solution is that the angles of the second roller 64 and other components are adjusted by the adjusting device 9, so that the second roller 64 and the grinding roller 610 can be rotated to adjust the angles to adapt to main pipes 1 with different diameters.

[0031] In one embodiment of the present invention, Figures 1 to 6 As shown, the following steps are included:

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

[0033] S2: Place the protective shell 61 outside the connecting ring 3, and place the first roller 63 in the guide groove 4. Then fix the protective shell 61 outside the connecting ring 3 by 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 first roller 63 rotates to move the protective shell 61 along the guide groove 4. The second roller 64 is placed in the guide groove 4 through the adjustment device 9.

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

[0036] S5: The burrs and abrasion marks on the inner wall of the main pipe 1 are then polished away by the polishing rod 10, and the impurities and dust on the inner wall are sucked into the vacuum cleaner 12 through the suction port 11;

[0037] S6: After one circle of the main pipeline 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 pipeline 1;

[0038] S7: After the first roller 63 is placed in the guide groove 4, the rotating plate 91 is lifted up so that the second roller 64 is higher than the guide groove 4; at this time, the second roller 64 is lowered so that the second roller 64 is located in the guide groove 4; at this time, the fixing rod 94 is inserted into the positioning hole 93, and the rotating disk 92 is fixed so that the rotating rod 95 and the rotating plate 91 no longer move, so that 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 rather than 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 in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A pipeline installation method and equipment in nuclear power construction, characterized in that: The invention comprises a main pipeline (1), an electric cylinder (5) and a fixing ring (2), wherein the electric cylinder (5) is arranged on the inner side of the main pipeline (1), connecting rings (3) are connected to both sides of the fixing ring (2), 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), the inner side of the guide groove (4) is connected to an annular cleaning device (6), and the annular cleaning device (6) comprises: 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 grinding roller (610) and a connecting rod (67), the lower end of the protective shell (61) slides with the outer side of the connecting ring (3), the side of the protective shell (61) slides with the main pipeline (1), one end of the spiral rod (65) passes through the side of the protective shell (61) and is threaded with the protective shell (61). The lower end of the spiral rod (65) is rotatably connected to the sliding rod (611), the sliding rod (611) is slidably connected to the side of the fixing ring (2), the motor (62) is located in the protective shell (61), the output shaft of the motor (62) passes through the first pulley (68) and the first roller (63) and is fixedly connected thereto, one side of the first roller (63) is located in the guide groove (4), and one end of the connecting rod (67) is rotatably connected to the output shaft of the motor (62), The other end of the connecting rod (67) is rotatably connected to the rotating shaft (66), and the rotating shaft (66) passes through the second pulley (69) and the second roller (64) and is fixedly connected thereto. A belt (7) is connected between the second pulley (69) and the first pulley (68), and one side of the second roller (64) is located in the guide groove (4). The lower end of the rotating shaft (66) is fixedly connected to the grinding roller (610), and the upper part of the rotating shaft (66) is rotatably connected to an adjusting device (9).

2. The pipeline installation method and equipment in nuclear power construction according to claim 1, characterized in that: The adjusting device (9) comprises: 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); one end of the rotating rod (95) is fixedly connected to the rotating plate (91); the rotating rod (95) passes through the protective shell (61) and is rotatably connected to the protective shell (61); the upper end of the rotating rod (95) is fixedly connected to the rotating disk (92); both the rotating disk (92) and the protective shell (61) are provided with positioning holes (93); and the fixed rod (94) passes through the positioning hole (93).

3. The pipeline installation method and equipment in nuclear power construction according to claim 1, characterized in that: The outer side of the grinding roller (610) is provided with a friction strip (8).

4. The pipeline installation method and equipment in nuclear power construction according to claim 2, characterized in that: There are a plurality of positioning holes (93).

5. The pipeline installation method and equipment in nuclear power construction according to claim 1, characterized in that: A polishing rod (10) is connected to the side of the protective shell (61).

6. The pipeline installation method and equipment in nuclear power construction according to claim 1, characterized in that: The other side of the protective shell (61) is connected to a vacuum cleaner (12), and the vacuum port (11) of the vacuum cleaner (12) is close to the main pipeline (1).

7. The pipeline installation method and equipment 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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