Debugging stand and debugging method for large diameter saddle surface weld detection equipment

Abstract

The present invention provides a debugging bench and debugging method for large-diameter saddle surface weld detection equipment, the debugging bench includes a simulation body and a support frame, the simulation body includes a barrel section, a pipe section and an extension section connected in sequence; the pipe section is a partial pipe section of the pipe circumference, including a pipe curved surface and a support frame arranged inside the pipe curved surface, and a plurality of first mounting cylinders are arranged in the support frame; the support frame includes a base, a support column arranged on the base, a plurality of second mounting cylinders erected on the support column and a plurality of support rods, the plurality of support rods extend from the plurality of second mounting cylinders, and are inserted into the plurality of first mounting cylinders, so as to install the simulation body on the support frame and combine into a debugging bench. The present invention significantly reduces the difficulty and cost of manufacturing the debugging bench through a segmented structure and selecting a local area for production, simulates the structural working conditions of the detection object, and realizes comprehensive functional debugging and testing of the detection equipment.

Description

Technical Field

[0001] The invention belongs to the technical field of nondestructive testing equipment, and in particular relates to a debugging stand and a debugging method for large-diameter saddle surface weld detection equipment. Background Art

[0002] The nuclear reaction in a nuclear power plant takes place inside a pressure vessel. The high-temperature and high-pressure gas or liquid formed needs to be transported to other equipment in the primary circuit through a connecting pipe that intersects the pressure vessel. Due to the limitations of the manufacturing process, the connecting pipe and the pressure vessel cylinder are manufactured and formed separately, and then the two are firmly connected by a circle of annular welds on the intersection surface. The welds here are distributed along a more complex curved surface on the intersection surface, which is called a saddle surface weld. During the operation of the nuclear power plant, it is necessary to perform regular non-destructive testing on it in order to implement aging management.

[0003] Due to its technical characteristics, the new nuclear power plant cannot detect the saddle surface weld from inside the pressure vessel, and needs to detect the weld from the outer wall of the cylinder. The diameter of the pressure vessel cylinder exceeds 5 meters, and the diameter of the nozzle exceeds 2 meters. The resulting saddle surface weld has a complex distribution curve in space, and the drop along the axis of the nozzle is large. The detection equipment moves on the outer circle of the nozzle and detects the weld area on the surface of the cylinder by crawling with magnetic adsorption. The movement space required on the outer circle of the nozzle exceeds 1 meter. Since the detection equipment is relatively complex and there are many risks in the working process, it needs to be fully debugged and tested. The working time window at the power plant site is extremely limited, and it is impossible to debug and test on the detection object. Therefore, it is necessary to design a debugging bench that can simulate the large-diameter saddle surface structure for the debugging of the detection equipment.

[0004] The size of the debugging bench must be exactly the same as the actual inspection object. Under this premise, if a debugging bench is made to cover a full 360° circumference of the pipe, considering the equipment movement space, the width and height of the bench will exceed 4 meters. Together with the auxiliary support structure, it will take up a lot of space, and the manufacturing difficulty and cost will be high.

[0005] In view of the above problems, it is necessary to reasonably design the structure of the test bench to meet the debugging requirements of the testing equipment. Summary of the invention

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art, and provides a debugging stand and a debugging method for large-diameter saddle surface weld detection equipment.

[0007] One aspect of the present invention provides a debugging bench for large-diameter saddle surface weld detection equipment, the debugging bench comprising: a simulation body and a support frame, the simulation body comprising a barrel section, a connecting pipe section and an extension section connected in sequence; the connecting pipe section is a partial pipe section of the connecting pipe circumference, comprising a connecting pipe curved surface and a support frame arranged on the inner side of the connecting pipe curved surface, a plurality of first mounting tubes are arranged in the support frame; the support frame comprises a base, a support column arranged on the base, a plurality of second mounting tubes mounted on the support column and a plurality of support rods, the plurality of support rods extend from the plurality of second mounting tubes and are inserted into the plurality of first mounting tubes, so as to install the simulation body on the support frame to form the debugging bench.

[0008] Optionally, the plurality of support rods selectively extend from the plurality of second mounting tubes and are inserted into the plurality of first mounting tubes, so as to position the simulation body at different debugging positions.

[0009] Optionally, the plurality of first mounting tubes are arranged along the axial direction of the connecting pipe curved surface.

[0010] Optionally, the distribution range of the connecting pipe segments is 1 / 4 to 1 / 3 of the circumference of the connecting pipe.

[0011] Optionally, the connecting pipe section further comprises a safety protection member, which is arranged on a side of the supporting frame away from the connecting pipe curved surface arc, and is used to pull the detection equipment and prevent it from accidentally falling from the simulation body.

[0012] Optionally, the safety protection member includes a plurality of guide pulleys and a plurality of limiting rings.

[0013] Wherein, the multiple guide pulleys are arranged at both ends of the support frame, and the guide pulleys are provided with slide grooves; the multiple limit rings are arranged in the middle of the support frame.

[0014] Optionally, the support frame further includes a water receiving trough, which is disposed below the simulation body and is used to collect liquid during debugging of the detection equipment.

[0015] Optionally, the barrel section is provided with a plurality of test blocks for debugging the detection equipment.

[0016] Optionally, the cylinder section is made of fiberglass; the connecting pipe section is formed by bending a thick steel plate, and is used for adsorption installation of the detection equipment; the extension section is formed by bending a thin steel plate, and is used to provide the movement area required by the detection equipment.

[0017] Another aspect of the present invention provides a debugging method for a debugging bench for large-diameter saddle surface weld detection equipment, using the debugging bench described above, the debugging method comprises the following steps:

[0018] Extending the plurality of support rods from the plurality of second mounting tubes and inserting them into the plurality of first mounting tubes, so as to mount the simulation body on the support frame to form the debugging bench;

[0019] The detection device is installed on the pipe curved surface by magnetic adsorption, and safety ropes are arranged at both ends of the detection device. The safety ropes pass through the guide pulley slot and pass through the limit ring to pull the detection device and prevent it from accidentally falling from the simulation body. The detection device detects the simulation body;

[0020] The plurality of support rods are extended from the plurality of second installation tubes at different positions and inserted into the plurality of first installation tubes, so that the simulation body is located at different debugging positions, and the detection equipment detects the simulation body.

[0021] A debugging bench and debugging method for large-diameter saddle surface weld detection equipment according to an embodiment of the present invention include a simulation body and a support frame. The simulation body is made in sections and spliced ​​to form. The simulation body includes a barrel section, a pipe section, and an extension section connected in sequence. The pipe section is a partial pipe section of the pipe circumference, specifically including a pipe curved surface and a support frame arranged on the inner side of the pipe curved surface, and a plurality of first mounting tubes are arranged in the support frame. The support frame includes a base, a support column arranged on the base, a plurality of second mounting tubes arranged on the support column, and a plurality of support rods. The plurality of support rods extend from the plurality of second mounting tubes and are inserted into the plurality of first mounting tubes, so as to install the simulation body on the support frame and combine into a debugging bench. The present invention significantly reduces the difficulty and cost of making the debugging bench through a segmented structure and selecting a local area for making, and realizes a comprehensive simulation of the working conditions of a large-diameter saddle surface and a comprehensive debugging and testing of the detection equipment within a smaller site. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of a debugging bench according to an embodiment of the present invention;

[0023] Figure 2 A schematic structural diagram of a simulation body according to another embodiment of the present invention;

[0024] Figure 3 It is a structural schematic diagram of a pipe section in a simulation body according to another embodiment of the present invention;

[0025] Figure 4 A schematic structural diagram of a support frame according to another embodiment of the present invention;

[0026] Figure 5 is a schematic diagram of a debugging stand in another embodiment of the present invention in a debugging station;

[0027] Figure 6 is a schematic diagram of a debugging stand in another embodiment of the present invention in a debugging station;

[0028] Figure 7 is a schematic diagram of a debugging stand in another embodiment of the present invention when it is in a debugging station;

[0029] Figure 8 It is a flow chart of a debugging method for a debugging stand for large-diameter saddle surface weld detection equipment according to another embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7 As shown, one aspect of the present invention provides a debugging bench 100 for large-diameter saddle surface weld detection equipment, including a simulation body 110 and a support frame 120, the simulation body 110 includes a barrel section 111, a pipe section 112 and an extension section 113 connected in sequence, wherein the barrel section 111 is made of glass fiber reinforced plastics to simulate the pressure vessel barrel, the pipe section 112 is formed by bending a thick steel plate and is used for the adsorption installation of the detection equipment 130, and the extension section 113 is formed by bending a thin steel plate and is used to provide the movement area required by the detection equipment 130; the pipe section 112 is the pipe circumference. A partial pipe section includes a connecting pipe curved surface 1121 and a support frame 1122 arranged on the inner side of the connecting pipe curved surface 1121, and a plurality of first mounting tubes A are arranged in the support frame 1122; the support frame 120 includes a base 121, a support column 122 arranged on the base 121, a plurality of second mounting tubes B mounted on the support column 122, and a plurality of support rods 123, and the plurality of support rods 123 extend from the plurality of second mounting tubes B and are inserted into the plurality of first mounting tubes A, so as to install the simulation body 110 on the support frame 120, and be combined into a debugging bench 100.

[0032] The simulation body in the present invention is realized by segmented production and splicing. The simulation body includes a barrel section, a pipe section and an extension section connected in sequence. The pipe section selects a partial area of ​​the pipe circumference, including a pipe curved surface and a support frame arranged inside the pipe curved surface. The support rod extends from the second installation tube and is inserted into the first installation tube to install the simulation body on the support frame to form a debugging bench. Through the segmented structure and the selection of local areas for production, the difficulty and cost of manufacturing the debugging bench are significantly reduced, and a comprehensive simulation of the working conditions of a large-diameter saddle surface and comprehensive debugging and testing of the detection equipment are achieved in a smaller field.

[0033] For example, Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, a plurality of support rods 123 selectively extend from a plurality of second installation tubes B and are inserted into a plurality of first installation tubes A, so as to position the simulation body 110 at different debugging positions.

[0034] Specifically, in this embodiment, Figure 3 As shown, three first installation tubes A are arranged inside the support frame 1122, and the three first installation tubes A are distributed in a right-angled isosceles triangle, and the right-angled isosceles triangle is perpendicularly bisected by the central axis of the pipe section 112. Figure 4 As shown, there are two rows of second mounting tubes B on the support frame 120, with two in each row. The distance between the two second mounting tubes B in the same row is equal to the distance between the right-angled sides of the right-angled isosceles triangle formed by the three first mounting tubes A in the support frame 1122.

[0035] like Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, in this embodiment, when the simulation body 110 is installed, any two of the three first installation tubes A in the support frame 1122 that are located on the same right-angled side are placed opposite to one of the two rows of second installation tubes B on the support frame 120, and the support rod 123 is inserted. There are 4 combinations of this installation method, so that the simulation body 110 has 4 placement states on the support frame 120, that is, 4 debugging stations, which can respectively simulate the 4 quadrants of the pipe, thereby realizing a comprehensive simulation of the large-diameter saddle surface working condition. The multi-station design combined with the local area simulation body is used to realize a comprehensive simulation of the large-diameter saddle surface working condition and a comprehensive debugging and testing of the detection equipment within a smaller site.

[0036] It should be noted that different first mounting tubes A can cooperate with the second mounting tubes B on the support frame 120 to place the simulation body 110 in different debugging positions. The number of first mounting tubes A, second mounting tubes B and support rods 123 can be 1, 2, 3 or more, and the distribution and arrangement of the first mounting tubes A and the second mounting tubes B can also be various, as long as the simulation body 110 can be placed in different states on the support frame 120, that is, the simulation body 110 has different debugging positions on the support frame 120.

[0037] For example, Figure 3As shown, multiple first mounting tubes A are arranged along the axial direction of the connecting pipe curved surface 1121, and the connecting pipe curved surface 1121 is reinforced by welding the support frame 1122. Multiple first mounting tubes A are arranged along the axial direction of the connecting pipe curved surface 1121, so that the simulation body 110 can be more firmly installed on the support frame 120.

[0038] For example, Figure 2 and Figure 7 As shown, the distribution range of the pipe section 112 is 1 / 4 to 1 / 3 of the pipe circumference, and a local area is selected for production, which significantly reduces the production difficulty and manufacturing cost of the debugging bench. In this embodiment, the distribution range of the pipe section 112 is further preferably 1 / 3 of the pipe circumference, and the distribution range of the pipe section 112 exceeds 100°, which is one-third of the outer circle of the pipe, and can simulate a quarter area of ​​the detection equipment on the large-diameter saddle surface. In this way, the debugging bench 100 can have multiple debugging stations through different installation methods, thereby meeting the debugging requirements of the detection equipment 130.

[0039] For example, Figure 3 and Figure 7 As shown, the pipe section 112 also includes a safety guard, which is arranged on the side of the support frame 1122 away from the pipe curved surface 1121, and is used to pull the detection equipment and prevent it from accidentally falling from the simulation body. In this embodiment, the safety guard further preferably includes two guide pulleys 1123a and two limit rings 1123b, wherein the two guide pulleys 1123a are respectively arranged at both ends of the support frame 1122, each guide pulley 1123a is provided with a slide groove 1123c, and two limit rings 1123b are arranged in the middle of the support frame 1122. Figure 7 As shown, the safety protection part also includes a safety rope 140, and the two ends of the safety rope 140 are respectively connected to the two ends of the detection device 130. When the detection device 130 is installed on the pipe curved surface 1121, in order to ensure the debugging safety of the detection device 130, the safety rope 140 is tied at both ends of the detection device 130. The safety rope 140 passes around the slide groove 1123c of the guide pulley 1123a and passes through the limit ring 1123b, and together with the detection device 130, it forms a closed geometric structure around the pipe section 112. When the detection device 130 moves on the simulation body 110, the safety rope 140 will also move, thereby ensuring the safety of the equipment during the debugging process.

[0040] It should be noted that the number of the guide pulleys 1123a and the limiting rings 1123b is not specifically limited in this embodiment, as long as they can guide and direct the movement of the safety rope 140.

[0041] For example, Figure 4 and Figure 7As shown, the support frame 120 also includes a water receiving tank 124, which is arranged below the simulation body 110 and is used to collect liquid during the debugging of the detection device 130. Since the detection device 130 needs to spray desalted water at the end when working, the water receiving tank 124 arranged below the simulation body 110 can collect and recycle the desalted water. It should be noted that the type of liquid is not specifically limited in this embodiment. Whatever liquid needs to be sprayed by the detection device 130 when working, the water receiving tank 124 can collect it.

[0042] For example, Figure 2 and Figure 7 As shown, the cylinder section 111 is provided with a plurality of test blocks 1111 for debugging the detection device 130. Specifically, the test blocks 1111 are embedded in the cylinder section 111 to facilitate debugging of the detection device 130. It should be noted that the number of the test blocks 1111 can be 1, 2, 3, etc., which is not specifically limited in this embodiment and can be set according to the specific debugging situation of the detection device 130.

[0043] like Figure 8 As shown, another aspect of the present invention provides a debugging method S110 for a debugging bench for large-diameter saddle surface weld detection equipment, using the debugging bench 110 recorded above, the specific structure of the debugging bench 110 can refer to the relevant records above, and will not be repeated here, the debugging method S110 includes the following steps:

[0044] S110, extending the plurality of support rods from the plurality of second installation tubes and inserting them into the plurality of first installation tubes, so as to install the simulation body on the support frame to form the debugging bench.

[0045] Specifically, Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the support rod 123 is extended from the second mounting tube B on the support frame 120, and then inserted into the first mounting tube A on the support frame 1122, and the simulation body 110 is installed on the support frame 120 through the connection between the first mounting sleeve A, the second mounting sleeve B and the support rod 123.

[0046] S120. The detection device is installed on the curved surface of the connecting pipe by magnetic adsorption. Safety ropes are arranged at both ends of the detection device. The safety ropes pass through the slide groove of the guide pulley and pass through the limit ring to pull the detection device and prevent it from accidentally falling from the simulation body. The detection device detects the simulation body.

[0047] Specifically, in this embodiment, the simulation body 110 is mounted on the support frame 110 so that the debugging bench 100 is in a state as follows: Figure 7The debugging station shown in the figure is then used to install the detection device 130 on the pipe curved surface 1121 on the pipe section 112. To ensure the debugging safety of the detection device 130, safety ropes 140 are tied at both ends of the detection device 130. The safety rope 140 passes through the slide groove 1123c of the guide pulley 1123a and passes through the limit ring 1123b, and together with the detection device 130, a closed geometric structure is formed around the pipe section 112, thereby ensuring the equipment safety during the debugging process.

[0048] S130, extending the plurality of support rods from the plurality of second installation tubes at different positions, and inserting the plurality of first installation tubes, so that the simulation body is located at different debugging positions, and the detection equipment detects the simulation body.

[0049] Specifically, Figure 5 , Figure 6 and Figure 7 As shown, by installing and matching the first installation cylinder A with the different second installation cylinder B, the simulation body 110 can be placed in the following Figure 5 , Figure 6 and Figure 7 In the different debugging positions shown, the detection device 130 detects the simulation body 110 at different debugging positions. Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the distribution range of the connecting pipe section 112 is further preferably 1 / 3 of the circumference of the connecting pipe. When the simulation body 110 is installed, any two of the three first installation tubes A in the support frame 1122 that are located on the same right-angled side are aligned with one of the two rows of second installation tubes B on the support frame 120, and the support rod 123 is inserted. There are 4 combinations of this installation method, so that the simulation body 110 has 4 placement states on the support frame 120, that is, 4 debugging stations, which can respectively simulate the 4 quadrants of the connecting pipe, thereby realizing a comprehensive simulation of the large-diameter saddle surface working conditions.

[0050] The present invention discloses a debugging method for a debugging bench for large-diameter saddle surface weld detection equipment. By installing and matching a first mounting tube with different second mounting tubes, the debugging bench has multiple debugging stations, thereby meeting the debugging requirements of the detection equipment. The multi-station design is combined with a local area simulation body to achieve a comprehensive simulation of the large-diameter saddle surface working condition and comprehensive debugging and testing of the detection equipment within a smaller site.

[0051] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A debugging method for a debugging bench for large-diameter saddle surface weld detection equipment, characterized in that: The debugging bench comprises: a simulation body and a support frame, wherein the simulation body comprises a barrel section, a pipe section and an extension section connected in sequence; the pipe section is a partial pipe section of the pipe circumference, comprising a pipe curved surface and a support frame arranged inside the pipe curved surface, wherein a plurality of first mounting cylinders are arranged in the support frame; the support frame comprises a base, a support column arranged on the base, a plurality of second mounting cylinders mounted on the support column and a plurality of support rods, wherein the plurality of support rods extend from the plurality of second mounting cylinders and are inserted into the plurality of first mounting cylinders, so as to install the simulation body on the support frame and assemble into the debugging bench; the debugging method comprises: Extending the plurality of support rods from the plurality of second mounting tubes and inserting them into the plurality of first mounting tubes, so as to mount the simulation body on the support frame to form the debugging bench; Installing a detection device on the pipe curved surface by magnetic adsorption, wherein the detection device detects the simulation body; The plurality of support rods are extended from the plurality of second installation tubes at different positions and inserted into the plurality of first installation tubes, so that the simulation body is located at different debugging positions, and the detection equipment detects the simulation body.

2. The debugging method for a debugging stand for large-diameter saddle surface weld detection equipment according to claim 1, characterized in that: The plurality of support rods selectively extend from the plurality of second installation tubes and are inserted into the plurality of first installation tubes, so as to place the simulation body at different debugging positions.

3. The debugging method for a debugging stand for large-diameter saddle surface weld detection equipment according to claim 2 is characterized in that: The plurality of first mounting tubes are arranged along the axial direction of the connecting pipe curved surface.

4. The debugging method for a debugging stand for large-diameter saddle surface weld detection equipment according to claim 1, characterized in that: The distribution range of the connecting pipe section is 1 / 4 to 1 / 3 of the circumference of the connecting pipe.

5. The debugging method for a debugging stand for large-diameter saddle weld detection equipment according to claim 1, characterized in that: The connecting pipe section also includes a safety protection piece, which is arranged on a side of the supporting frame away from the connecting pipe curved surface arc and is used to pull the detection equipment and prevent it from accidentally falling from the simulation body.

6. The debugging method for a debugging stand for large-diameter saddle weld detection equipment according to claim 5, characterized in that: The safety protection member includes a plurality of guide pulleys and a plurality of limit rings, wherein the plurality of guide pulleys are arranged at both ends of the support frame, and the guide pulleys are provided with slide grooves; the plurality of limit rings are arranged in the middle of the support frame; after the detection device is mounted on the pipe curved surface by magnetic adsorption and before the detection device detects the simulation body, the debugging method further includes: Safety ropes are arranged at both ends of the detection device. The safety ropes go around the slide groove of the guide pulley and pass through the limit ring, so as to pull the detection device and prevent it from accidentally falling from the simulation body.

7. A debugging method for a debugging stand for large-diameter saddle weld detection equipment according to any one of claims 1 to 6, characterized in that: The support frame also includes a water receiving trough, which is arranged below the simulation body and is used to collect liquid during the debugging of the detection equipment.

8. A debugging method for a debugging stand for large-diameter saddle weld detection equipment according to any one of claims 1 to 6, characterized in that: The cylinder section is provided with a plurality of test blocks for debugging the detection equipment.

9. A debugging method for a debugging stand for large-diameter saddle weld detection equipment according to any one of claims 1 to 6, characterized in that: The cylinder section is made of glass fiber reinforced plastic; The connecting pipe section is formed by bending a steel plate and is used for adsorption installation of the detection equipment; The extension section is formed by bending a steel plate and is used to provide a movement area required by the detection device; wherein the thickness of the connecting pipe section is greater than the thickness of the extension section.

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