Inspection device for nuclear power station equipment installation

Abstract

The utility model discloses an inspection device for nuclear power station equipment installation. The inspection device comprises at least one inspection base body, a position measuring mechanism and a gap measuring mechanism. According to the inspection device for nuclear power station equipment installation, by arranging the inspection base body, the outer contour of a part can be truly restored, it is ensured that the form and location tolerance of the inspection device for nuclear power station equipment installation is consistent with that of the part, and the inspection base body is connected to the installation hole of the base through the installation interface, so that installation of the part is not affected; installation interfaces of parts and other parts are not damaged, damage-free installation of the inspection device for nuclear power station equipment installation is ensured, meanwhile, the action through hole is formed to provide an operation space for use of the gap measurement mechanism, reasonable measurement conditions can be provided, and measurement accuracy is improved. It is guaranteed that the gap between the outer wall face of the base body and the cavity wall of the part can be measured and inspected at each position, and the correctness of installation of the part can be guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to nuclear power plant spare part installation inspection field especially relates to a kind of inspection devices of nuclear power plant equipment installation. BACKGROUND

[0002] The installation of nuclear power plant equipment is generally high, in some high-precision and complex profile installation cooperation, it is easy to cause mutual scratch between the parts of equipment during installation due to installation time gap and design, even lead to installation. Therefore, a special tool needs to be designed, to check the profile of a part during preliminary installation, adjust its installation position and installation angle, to ensure that the next part has a reasonable installation profile, so as to ensure the smooth installation of two parts. SUMMARY

[0003] The utility model solves the technical problem in that a kind of inspection devices of nuclear power plant equipment installation is provided.

[0004] The utility model solves the technical problems and adopts the technical scheme that a kind of inspection devices of nuclear power plant equipment installation is constructed, the equipment includes spare part, and the spare part is installed on pedestal, and it includes at least one inspection base body, position measuring mechanism and gap measuring mechanism.

[0005] The inspection base body is provided with mounting interface and acting through-hole, the inspection base body is connected on the mounting hole of the pedestal through the mounting interface, and the acting through-hole is used to provide operating space for the use of the gap measuring mechanism.

[0006] The position measuring mechanism is used to measure the position of the inspection base body relative to the pedestal.

[0007] The gap measuring mechanism is used to measure the gap between the outer wall surface of the inspection base body and the cavity wall of the spare part.

[0008] In some embodiments, the inspection device of the nuclear power plant equipment installation further includes connecting pressing plate.

[0009] The connecting pressing plate is used to connect at least two inspection base bodies, and the connecting pressing plate is provided with adjusting through-hole.

[0010] In some embodiments, the number of the connecting pressing plate is two, and the two connecting pressing plates are connected to the inspection base body through fastener.

[0011] In some embodiments, the cross-sectional shape of the inspection base body is half hexagon.

[0012] In some embodiments, the number of the connecting pressing plate is two, and the two connecting pressing plates are connected to the inspection base body through fastener.

[0013] In some embodiments, the position measuring mechanism is a level or a laser interferometer.

[0014] In some embodiments, the gap measuring mechanism is a feeler gauge.

[0015] In some embodiments, the inspection base body is provided with a lifting ring.

[0016] In some embodiments, the inspection base body is provided with an anti-rotation part.

[0017] In some embodiments, the number of the action through holes is multiple, the multiple action through holes are arranged along the circumferential direction of the inspection base body, and the multiple action through holes are arranged along the height direction of the inspection base body.

[0018] In some embodiments, the inspection base body is made of stainless steel.

[0019] In some embodiments, the bottom of the inspection base body is connected to the base through a locking part.

[0020] The utility model discloses a following beneficial effects: the inspection device for nuclear power station equipment installation can restore the outer contour of the part truly through the setting of the inspection base body, ensures that the inspection device for nuclear power station equipment installation shape tolerance and the part are consistent, and the inspection base body is connected on the mounting hole of the base through the installation interface, does not affect the installation of the part, does not destroy the installation interface of the part and other parts, ensures that the inspection device for nuclear power station equipment installation is not damaged installation, and at the same time, the action through hole is set to provide the operation space for the use of the gap measuring mechanism, can provide reasonable measurement conditions, ensures that the gap between the outer wall surface of the inspection base body and the cavity wall of the part can be measured at each position, and the correctness of the installation of the part can be ensured. In addition, the position of the inspection base body relative to the base is measured through the position measuring mechanism, the installation position between the inspection base body and the base is ensured to be correct, the gap between the outer wall surface of the inspection base body and the cavity wall of the part is measured through the gap measuring mechanism, so that the installation position and the installation angle of the part relative to the base are adjusted, the gap meets certain requirements, and the part can be smoothly installed. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the utility model, the following will be further described in combination with the drawings and embodiments, it should be understood that the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other related drawings according to these drawings. In the drawings:

[0022] Fig. 1is the application schematic view of the inspection device for nuclear power plant equipment installation in some embodiments of the utility model;

[0023] Fig. 2 is the overall structure schematic view of the inspection device for nuclear power plant equipment installation in some embodiments of the utility model;

[0024] Fig. 3 is the structure schematic view of the connecting pressing plate in some embodiments of the utility model. DETAILED DESCRIPTION

[0025] In order to have a clearer understanding of the technical features, objects and effects of the utility model, the specific implementation manners of the utility model will be described in detail with reference to the drawings. In the following description, it should be understood that the directions or position relations indicated by "front", "back", "upper", "lower", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail" and the like are based on the directions or position relations shown in the drawings, the specific directions are constructed and operated, and are only for the convenience of describing the technical scheme, and do not indicate that the indicated device or element must have a specific direction, so it cannot be understood as a limitation on the utility model.

[0026] It should be further pointed out that, unless otherwise explicitly specified and limited, the terms "installation", "connection", "connection", "fixation", "setting" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the internal communication of two elements or the interaction relationship between two elements. When an element is referred to as "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there can be one or more intermediate elements. The terms "first", "second", "third" and the like are only for the convenience of describing the technical scheme, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features, therefore, the features with "first", "second", "third" and the like can explicitly or implicitly include one or more of the features. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] Reference Figs. 1 to 3The utility model provides a kind of verification device of nuclear power plant equipment installation in some embodiments of the utility model, equipment includes component 3, component 3 is installed on pedestal, specifically, the verification device of nuclear power plant equipment installation is used for the installation scene of small gap sawtooth profile component, ensure that relevant component is smoothly and unharmed installation.Verification device of component installation should have following basic functional requirements:1, do not affect the installation of original component: do not destroy the installation interface of original component and other components, ensure that verification structure is unharmed installation;2, restore the authenticity of installation component profile: as verification tool, the outer contour of component should be restored by verification structure, ensure that its shape tolerance and original component remain consistent;3, realize full-size profile inspection: some components are high, need to ensure the correctness of profile structure in entire height;4, have measurement condition: under the condition of greater longitudinal depth height, need to provide reasonable measurement condition, ensure that gap condition can be measured at each position.

[0028] To meet the above functional requirements, as shown in Figs. 1 to 3 Verification device of nuclear power plant equipment installation includes at least one verification base body 1, position measurement mechanism and gap measurement mechanism.The verification base body 1 is provided with installation interface 11 and acting through-hole 12, verification base body 1 is connected on the installation hole of pedestal by installation interface 11, and acting through-hole 12 is used to provide operating space for the use of gap measurement mechanism;Position measurement mechanism is used to measure the position of verification base body 1 relative to pedestal;Gap measurement mechanism is used to measure the gap between the outer wall surface of verification base body 1 and the cavity wall of component 3.The component is a multi-unit independent disassembly structure before installation, and the component is a whole polygonal structure after installation, that is, the component is a component composed of multi-module combination after installation.

[0029] Understandably, the verification device of nuclear power plant equipment installation can restore the outer contour of component 3 by setting verification base body 1, ensure that the shape tolerance of verification device of nuclear power plant equipment installation and component 3 remain consistent, and verification base body 1 is connected on the installation hole of pedestal by installation interface 11, does not affect the installation of component 3, does not destroy the installation interface of component 3 and other components, ensures that verification device of nuclear power plant equipment installation is unharmed installation, at the same time, by setting acting through-hole 12 for providing operating space for the use of gap measurement mechanism, reasonable measurement condition can be provided, ensure that the gap between the outer wall surface of verification base body 1 and the cavity wall of component 3 can be measured at each position, the correctness of component 3 installation can be ensured.In addition, the position of verification base body 1 relative to pedestal is measured by position measurement mechanism, ensure that the installation position between verification base body 1 and pedestal is correct, the gap between the outer wall surface of verification base body 1 and the cavity wall of component 3 is measured by gap measurement mechanism, so as to adjust the installation position and installation angle of component 3 relative to pedestal, so that the gap meets certain requirements, ensure that component 3 can be smoothly installed.

[0030] In addition, the inspection device for nuclear power plant equipment installation further comprises a connecting pressing plate 2, the connecting pressing plate 2 is used for connecting at least two inspection bases 1, and the connecting pressing plate 2 is provided with an adjusting through hole 21. It can be understood that when it is necessary to use multiple inspection bases 1 to perform installation inspection on the part 3, the distance between the two inspection bases 1 can be adjusted by arranging the connecting pressing plate 2, so that the installation requirements of parts 3 with different widths can be adapted. Further, the number of the connecting pressing plate 2 is two, and the two connecting pressing plates 2 are connected to the inspection base 1 by fasteners 22. The fastener 22 is a bolt, and the arrangement of the two connecting pressing plates 2 enhances the stability of the connection between the two inspection bases 1.

[0031] Further, the bottom of the inspection base 1 is connected to the base through a locking piece, which can be a screw, to fix the relative position between the inspection base 1 and the base and ensure the stability of the inspection base 1 during the inspection process.

[0032] As shown in Fig. 1 , the number of the inspection base 1 is two, and the cross-sectional shape of the inspection base 1 is a half hexagon. The shape of the half hexagon matches the shape of the cavity wall of the part 3. In other embodiments, the shape of the inspection base 1 can also be square, circular, triangular or other shapes, which can be adjusted according to the shape of the cavity wall of the part 3. The inspection base 1 is made of stainless steel, which ensures the strength and rigidity of the inspection base 1. The height of the inspection base 1 is preferably 2000mm to 2500mm, which can adapt to the installation and inspection of more parts 3 with different depths.

[0033] Further, the position measuring mechanism is a level or a laser interferometer. The main functions of the level include measuring the mutual position level of machine parts, the flatness, straightness and perpendicularity of equipment installation, and measuring the small inclination angle of parts. The laser interferometer measures displacement through an interference system based on the known length of the laser wavelength, and can measure length, angle, straightness, parallelism, flatness and perpendicularity.

[0034] The gap measuring mechanism is a feeler gauge, which can be used to measure the gap between the outer wall surface of the inspection base 1 and the cavity wall of the part 3.

[0035] As shown in Fig. 2 , the inspection base 1 is provided with a lifting ring piece 13, which can be a lifting ring screw and can be used for lifting and installing the inspection device for nuclear power plant equipment installation. The inspection base 1 is provided with an anti-rotation part 14, which can be an anti-rotation pin and can be used for relative positioning between the two inspection bases 1.

[0036] Further, the number of the action through holes 12 is multiple, the multiple action through holes 12 are arranged along the circumferential direction of the inspection base 1, and the multiple action through holes 12 are arranged along the height direction of the inspection base 1. The action through holes 12 provide operation space and visual conditions for the gap measuring mechanism to measure the gap, and ensure that the gap can be measured at each position.

[0037] The use principle of the inspection device for the nuclear power plant equipment installation is as follows: if only one inspection base 1 is used to install and inspect the part 3, the installation interface 11 of the single inspection base 1 is matched with the installation hole of the base, then the installation position of the inspection base 1 is adjusted by the position measuring mechanism, the gap between the outer wall surface of the inspection base 1 and the cavity wall of the part 3 is measured by the gap measuring mechanism through the arrangement of the action through holes 12, the installation position and the installation angle of the part 3 relative to the base are adjusted, the gap is controlled within a certain range, and the installation and inspection of the part 3 is completed. When multiple inspection bases 1 are used to install and inspect the part 3, the installation interface 11 of the inspection base 1 is matched with the installation hole of the base, the position of the connecting pressing plate 2 is adjusted, the installation position and the installation angle of the part 3 at one position relative to the base are adjusted, the gap is controlled within a certain range, and then the installation and inspection of the part 3 at another position is performed.

[0038] It can be understood that the above embodiments only express the preferred embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application; it should be pointed out that for ordinary skilled in the art, the above technical features can be freely combined without departing from the concept of the present application, and some deformations and improvements can be made, which belong to the protection scope of the present application; therefore, any equivalent transformation and modification within the scope of the claims of the present application should belong to the scope of the claims of the present application.

Claims

1. An inspection device for the installation of equipment of a nuclear power plant, said equipment comprising a component (3) mounted on a base, characterized in that, The device comprises at least one inspection base (1), a position measuring mechanism and a gap measuring mechanism. The inspection base (1) is provided with a mounting interface (11) and an action through hole (12), the inspection base (1) is connected to the mounting hole of the base through the mounting interface (11), and the action through hole (12) is used for providing an operation space for use of the gap measuring mechanism. The position measuring mechanism is used for measuring the position of the inspection base (1) relative to the base. The gap measuring mechanism is used for measuring the gap between the outer wall surface of the inspection base (1) and the cavity wall of the part (3).

2. The inspection apparatus of claim 1, wherein, The device further comprises a connecting pressing plate (2). The connecting pressing plate (2) is used for connecting at least two inspection bases (1), and the connecting pressing plate (2) is provided with an adjusting through hole (21).

3. The verification device for installation of equipment of a nuclear power plant according to claim 2, characterized in that, The number of the connecting pressing plates (2) is two, and the two connecting pressing plates (2) are connected to the inspection base (1) through fasteners (22).

4. The inspection apparatus of claim 1, wherein The cross-sectional shape of the inspection base (1) is a half hexagon.

5. The inspection apparatus of claim 1, wherein The position measuring mechanism is a level or a laser interferometer.

6. The inspection apparatus of claim 1, wherein, The gap measuring mechanism is a feeler gauge.

7. The inspection apparatus of claim 1, wherein The inspection base (1) is provided with a lifting ring (13).

8. The inspection apparatus of claim 1, wherein, The inspection base (1) is provided with an anti-rotation part (14).

9. The inspection apparatus of claim 1, wherein, The number of the action through holes (12) is multiple, the multiple action through holes (12) are arranged in a circumferential direction of the inspection base (1), and the multiple action through holes (12) are arranged in a height direction of the inspection base (1).

10. The inspection apparatus of claim 1, wherein, The bottom of the inspection base (1) is connected to the base through a locking part.

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