Integrated simulator for maintenance of reactor pressure vessel flange surface and C ring groove

Abstract

The utility model discloses an integrated simulator for maintenance of a reactor pressure vessel flange surface and a C-ring groove, which comprises a frame and a simulator fixedly mounted on the frame. A flange face simulation face for testing of a flange face polishing machine and a C-ring groove simulation face for testing of a C-ring groove polishing machine are arranged on the front face and the back face of the simulation body respectively, the surface of the flange face simulation face is smooth, and a plurality of continuous grooves extending in the length direction of the simulation body are formed in the C-ring groove simulation face. The flange face simulation face and the C-ring groove simulation face are integrated into the integrated simulation body, the number of independent simulation bodies is reduced, and therefore the equipment cost and the storage space are reduced. The debugging steps can be simplified by integrating the integrated simulation body, and the simulation and inspection of the flange surface and the C-shaped ring groove can be completed by a worker only by using one simulation body, so that the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to nuclear power plant overhauling technical field especially relates to a kind of integrated simulation body of reactor pressure vessel flange face and C ring groove maintenance. BACKGROUND

[0002] During the installation and maintenance of the reactor pressure vessel of nuclear power plant, the accuracy of flange face and C ring groove is crucial to the sealing and safety of the entire vessel. The traditional simulation body design usually designs the simulation surface of flange face and C ring groove on different components, which not only increases the number and weight of the simulation body, but also may affect the accuracy of the simulation effect due to the error between components. In addition, the complexity and clumsiness of the traditional design also make the debugging and handling work more difficult. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide an integrated simulation body for the maintenance of reactor pressure vessel flange face and C ring groove.

[0004] The technical solution adopted by the utility model to solve its technical problem is: an integrated simulation body for the maintenance of reactor pressure vessel flange face and C ring groove, comprising a rack and a simulation body, the simulation body is fixedly installed on the rack.

[0005] The front and back surfaces of the simulation body are respectively provided with a flange face simulation surface for flange face polishing machine testing and a C ring groove simulation surface for C ring groove polishing machine testing, the flange face simulation surface is smooth, and the C ring groove simulation surface is provided with a plurality of continuous grooves extending along the length direction of the simulation body.

[0006] In some embodiments, the rack comprises a support assembly and a positioning assembly, the support assembly is connected with the simulation body and the positioning assembly respectively, and the positioning assembly is arranged side by side with the simulation body.

[0007] The positioning assembly is provided with a plurality of equally spaced positioning screw holes.

[0008] In some embodiments, the simulation body is also provided with a plurality of groove groups, each groove group penetrates at least one of the flange face simulation surface and the C ring groove simulation surface, for the video inspection device to identify and measure the defect size.

[0009] In some embodiments, the groove groups penetrate the flange face simulation surface and the C ring groove simulation surface.

[0010] In some embodiments, each groove group comprises more than three grooves.

[0011] In some embodiments, an adjustable track is further included, which is connected with the support assembly and is parallel to the simulation body, and is arranged opposite to the C-ring groove simulation surface to serve as a running track of the C-ring groove polishing machine.

[0012] In some embodiments, a limiting plate is further included, which is arranged in front of the adjustable track and is connected with the support assembly to simulate shielding body limiting.

[0013] In some embodiments, the rack, the simulation body and the adjustable track are respectively segmented structures and are spliced to form.

[0014] In some embodiments, the rack and the simulation body are respectively made of stainless steel.

[0015] In some embodiments, the simulation body is in a circular arc type.

[0016] By implementing the utility model, the following beneficial effects are achieved:

[0017] The utility model discloses a reactor pressure vessel flange face and C-ring groove maintenance integrated simulation body, including rack and simulation body, the simulation body is fixedly installed on the rack, the simulation body's both sides are provided with respectively for flange face polishing machine test flange face simulation surface and for C-ring groove polishing machine test C-ring groove simulation surface, the flange face simulation surface surface is even, the C-ring groove simulation surface is equipped with a plurality of continuous grooves along the simulation body length direction extension, by the flange face simulation surface and C-ring groove simulation surface are integrated to the integrated simulation body, reduced the number of separate simulation body, thereby reduced equipment cost and storage space, integrated integrated simulation body can also simplify the debugging step, and the worker only needs to use one simulation body to complete to the flange face and C-ring groove simulation and check, improves work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be described further below in combination with the drawings and examples, and the drawings are as follows:

[0019] Figure 1 It is the structure schematic diagram of the reactor pressure vessel flange face and C-ring groove maintenance integrated simulation body of one embodiment of the utility model,

[0020] Figure 2 It is another view of the reactor pressure vessel flange face and C-ring groove maintenance integrated simulation body in Figure 1

[0021] Figure 3 It is the enlarged structure schematic diagram of C-ring groove simulation surface in Figure 1

[0022] Figure 4 It is​​Figure 1 the front view of the groove set in FIG. 1 is enlarged and shown schematically;

[0023] Figure 5 is Figure 1 the back view of the groove set in FIG. 1 is enlarged and shown schematically. DETAILED DESCRIPTION

[0024] In order to have a clearer understanding of the technical features, objectives and effects of the present application, the specific embodiments of the present application will be described in detail with reference to the drawings.

[0025] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0026] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0027] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or chemical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between the two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] Referring to Figures 1 to 5The utility model discloses an embodiment discloses a kind of integrated simulation bodies of reactor pressure vessel flange face and C ring groove maintenance, including rack and simulation body, simulation body is fixedly installed on rack. The front and back of simulation body is respectively equipped with flange face simulation surface for flange face polishing machine test and C ring groove simulation surface for C ring groove polishing machine test, flange face simulation surface surface is smooth, C ring groove simulation surface is equipped with several continuous grooves extending along the length direction of simulation body.Among them, rack and simulation body are stainless steel material respectively, ensure its durability and stability in use process.Simulation body is arc type, close to the shape of the reactor pressure vessel.

[0029] The utility model can simulate flange face and C ring groove on the front and back of single simulation body simultaneously.One side simulates flange face sealing surface, and the other side simulates C ring groove sealing surface.Through accurate mechanical processing technology, ensure that the geometric dimension and relative position of two simulation surfaces accurately match the actual situation of reactor pressure vessel.Through this integrated design, reduce the number of simulation body, reduce weight, simplify installation and handling process, thereby improve the efficiency and accuracy of simulation debugging.

[0030] The utility model can solve the problem that nuclear power station site radiation dose is large, and equipment cannot be debugged on site, can be detected and debugged on single simulation body, and adapt to flange face polishing machine, C ring groove polishing machine and other equipment matched with actual reactor pressure vessel operation.

[0031] In some embodiments, the rack includes a support assembly and a positioning assembly, the support assembly is connected with the simulation body and the positioning assembly respectively, and the positioning assembly is arranged side by side with the simulation body. The positioning assembly is provided with a plurality of positioning screw holes distributed at equal intervals. The bottom of the support assembly is flat and can be directly placed on the ground, which facilitates carrying and placing of the integrated simulation body. The positioning assembly is used for positioning, and positioning can be realized by positioning screw hole number.

[0032] As shown in Figures 3 to 5 In some embodiments, the simulation body is also provided with a plurality of groove groups, each groove group penetrates at least one of the flange face simulation surface and the C ring groove simulation surface, for video inspection device to identify and measure defect size. There are three setting modes for groove group, for example, groove group penetrates flange face simulation surface, or groove group penetrates C ring groove simulation surface, or groove group penetrates flange face simulation surface and C ring groove simulation surface.

[0033] In some embodiments, each groove group includes more than three grooves. Groove is used to simulate a defect of a sealing surface damage, and can be used for video detection test and defect identification test capability of flange face and C ring groove surface, to ensure that the video inspection device can be normally used.

[0034] As shown in Figure 1 And Figure 2In some embodiments, the integrated simulation body for the reactor pressure vessel flange face and C-ring groove maintenance further comprises an adjustable track connected with the support assembly and parallel to the simulation body, and arranged opposite to the C-ring groove simulation face to serve as a running track for the C-ring groove polishing machine.

[0035] In some embodiments, the integrated simulation body for the reactor pressure vessel flange face and C-ring groove maintenance further comprises a limiting plate arranged in front of the adjustable track and connected with the support assembly to simulate the limiting of the shielding body. The limiting plate is used to simulate the space condition of the site, and the partial lead shielding body of the reactor pressure vessel to limit the test equipment.

[0036] In some embodiments, the frame, the simulation body and the adjustable track are respectively segmented structures and are spliced to form the whole. For example, the frame is segmented to be produced and then spliced to form the whole. The simulation body and the adjustable track are spliced in the same way. Alternatively, the frame, the simulation body and the adjustable track are respectively installed to form the whole segmented structure, and then spliced to form the integrated simulation body for the reactor pressure vessel flange face and C-ring groove maintenance.

[0037] The integrated simulation body for the reactor pressure vessel flange face and C-ring groove maintenance can be used to test the equipment before use in the nuclear radiation site to confirm the equipment state, test the inspection effect of the camera, confirm that there is no interference with the site after replacement of the parts, and the like, so as to avoid improper use of the equipment in the core or interference with the site.

[0038] By implementing the utility model, the following beneficial effects are achieved:

[0039] The integrated simulation body for the reactor pressure vessel flange face and C-ring groove maintenance integrates the flange face simulation face and the C-ring groove simulation face into the integrated simulation body, thereby reducing the number of separate simulation bodies and lowering the equipment cost and storage space. The integrated simulation body can also simplify the debugging steps, and the staff can complete the simulation and inspection of the flange face and the C-ring groove by using one simulation body, thereby improving the work efficiency.

[0040] It can be understood that the above embodiments only express the preferred embodiments of the utility model, the description is more specific and detailed, but it cannot be understood as a limitation on the patent scope of the utility model; it should be pointed out that the above embodiments or technical features can be freely combined without departing from the concept of the utility model for ordinary technical personnel in the art, and a number of modifications and improvements can be made, which all belong to the protection scope of the utility model, i.e. the embodiments described in "in some embodiments" can be freely combined with any of the above and below embodiments; therefore, any equivalent transformation and modification made to the utility model claim scope shall belong to the coverage range of the utility model claim.

Claims

1. An integrated mockup for reactor vessel flange face and C-ring groove repair, characterized by, The rack and the simulation body are fixedly installed on the rack; The simulation body is provided with flange face simulation surface and C-ring groove simulation surface on the front and back surfaces respectively, the flange face simulation surface is smooth, and the C-ring groove simulation surface is provided with continuous grooves extending along the length direction of the simulation body.

2. The integrated mockup for RPV flange face and C-ring groove repair of claim 1, wherein, The rack comprises a supporting assembly and a positioning assembly, the supporting assembly is connected with the simulation body and the positioning assembly respectively, and the positioning assembly is arranged side by side with the simulation body. The positioning assembly is provided with a plurality of equidistantly distributed positioning screw holes.

3. The integrated mockup for RPV flange face and C-ring groove repair of claim 1, wherein, The simulation body is further provided with a plurality of groove groups, each groove group penetrates at least one of the flange face simulation surface and the C-ring groove simulation surface, and is used for identifying and measuring the size of defects by a video inspection device.

4. The integrated mockup for reactor vessel flange face and C-ring groove repair of claim 3, wherein, The groove groups penetrate the flange face simulation surface and the C-ring groove simulation surface.

5. The integrated mockup for RPV flange face and C-ring groove repair of claim 3, wherein, Each groove group comprises three or more grooves.

6. The integrated mockup for RPV flange face and C-ring groove repair of claim 2, wherein, An adjustable track is further included, the adjustable track is connected with the supporting assembly and is parallel to the simulation body, the adjustable track is arranged opposite to the C-ring groove simulation surface and is used as a running track of the C-ring groove polishing machine.

7. The integrated mockup for RPV flange face and C-ring groove repair of claim 6, wherein, A limiting plate is further included, the limiting plate is arranged in front of the adjustable track and is connected with the supporting assembly, so as to simulate the limiting of a shielding body.

8. The integrated mockup for RPV flange face and C-ring groove repair of claim 6, wherein, The rack, the simulation body and the adjustable track are respectively in a segmented structure and are spliced to form.

9. The integrated mockup for RPV flange face and C-ring groove repair of any of claims 1-8, wherein, The rack and the simulation body are respectively made of stainless steel.

10. The integrated mockup for RPV flange face and C-ring groove repair of any one of claims 1-8, wherein, The simulation body is in a circular arc type.

Images