CN211904936U - Test benches and test systems - Google Patents

Abstract

The utility model discloses a test bench and a test system. The test bench (100) comprises: a frame structure (1), comprising a plurality of upright columns (11) and a plurality of beams (12) connected with each other, the The frame structure (1) is arranged to accommodate a nuclear reactor assembly (10) and a support device (20) of the nuclear reactor assembly (10) in its interior, and is arranged to install a restraining unit for restraining the nuclear reactor assembly (10) (30); a plurality of supporting units (2) arranged around the frame structure (1); and a platform (3) supported above the frame structure (1) by the plurality of supporting units (2), set To install an operating unit (40) for operating the nuclear reactor assembly (10) and a measuring unit (50) for measuring the nuclear reactor assembly (10).

Description

Test benches and test systems

technical field

The embodiments of the utility model relate to the technical field of nuclear engineering, in particular to a test bench and a test system.

Background technique

As an important part of the core, nuclear reactor components are closely related to the safe operation of nuclear reactors. Nuclear reactor components will undergo axial elongation and radial bending deformation during their lifetime. Effective control of the stress and deformation of nuclear reactor components is the first barrier to ensure the safety of the core. Therefore, it is of great significance to understand the deformation of nuclear reactor components by conducting external tests, which helps to ensure that the functions and performance indicators of nuclear reactor components meet the design and operation requirements.

The out-of-core tests of nuclear reactor components include: single-component bending stiffness test, single-component free thermal bending test, single-component restricted thermal bending test, single-row module restricted thermal bending test, 60° sector module restricted thermal bending test, etc. There are various types, and the installation methods, restraint methods, applied load types, measurement systems, etc. of the nuclear reactor components of different tests are all different. During the test, while constraining the nuclear reactor components, it is also necessary to measure the temperature, deformation of the wall of the nuclear reactor components, the force between the nuclear reactor components and other parameters. Therefore, a powerful, stable and comprehensive test bench is required. shelf.

Utility model content

The main purpose of the present invention is to provide a test bench and a test system to solve at least one aspect of the above technical problems.

According to one aspect of the present invention, a test bench is proposed, comprising: a frame structure including a plurality of uprights and a plurality of beams connected to each other, the frame structure is configured to accommodate a nuclear reactor assembly and a a support device configured to install a restraint unit for restraining the nuclear reactor assembly; a plurality of support units arranged around the frame structure; and a platform supported above the frame structure by the plurality of support units, Provision is made to install an operating unit for operating the nuclear reactor assembly and a measuring unit for measuring the nuclear reactor assembly.

According to some embodiments, a side of the platform close to the frame structure is provided with a first mounting portion, which is configured to mount the operating unit; and a side of the platform away from the frame structure is provided with a second mounting portion, which is configured to mount the measuring unit.

According to some embodiments, the platform is provided with an opening corresponding to the frame structure, wherein the measurement unit can measure the nuclear reactor assembly through the opening.

According to some embodiments, the test bench further includes a ladder connecting the ground and the platform.

According to some embodiments, a laterally extending pipe is provided on the side of the column, the pipe is connected to a first flange, the end of the beam is connected to a second flange, and the first flange is connected to the first flange. The second flanges correspond to each other and are connected by connecting pieces.

According to some embodiments, the frame structure includes a cubic structure, the plurality of uprights include a plurality of first uprights and a plurality of second uprights, the plurality of first uprights are arranged on edges of the cubic structure, the A plurality of second uprights are disposed adjacent to any of the first uprights; the frame structure further includes a support plate mounted on the plurality of second uprights and the adjacent first uprights.

According to some embodiments, the plurality of uprights further include a third upright disposed between two adjacent first uprights, wherein a constraining unit installed on the third uprights can be used to constrain the nuclear reactor assembly. The vertex angle of the triangular array.

According to another aspect of the present invention, a test system is proposed, comprising: the test bench; a nuclear reactor assembly; a support device configured to support the nuclear reactor assembly; a constraining unit configured to constrain the nuclear reactor assembly an operating unit arranged to operate the nuclear reactor assembly; a measurement unit arranged to measure the nuclear reactor assembly; a first horizontal force loading unit connected to the first protrusion of the nuclear reactor assembly, mounted on the a support plate; and a second horizontal force loading unit connected to a second protrusion of the nuclear reactor assembly, mounted where the frame structure is located above the support plate.

According to some embodiments, a plurality of reference lines are provided on the support device.

In the test bench according to the embodiment of the present invention, by setting the frame structure, the nuclear reactor assembly and the supporting device can be placed inside, and the restraint unit can be installed on it to constrain the nuclear reactor assembly to meet the test requirements; A platform is provided above the frame structure, and an operation unit and a measurement unit can be installed on the platform to meet the operational requirements and measurement requirements of the nuclear reactor assembly.

Description of drawings

Other objects and advantages of the present invention will be apparent from the following description of the present invention with reference to the accompanying drawings, and may help a comprehensive understanding of the present invention.

FIG. 1 shows a schematic structural diagram of a test bench according to an exemplary embodiment of the present invention; and

FIG. 2 shows a schematic structural diagram of the frame structure of the test bench of FIG. 1 .

Detailed ways

The technical solutions of the present utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals refer to the same or similar parts.

In the following detailed description, for convenience of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. Obviously, however, one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in diagram form in order to simplify the drawings.

FIG. 1 shows a schematic structural diagram of a test bench 100 according to an exemplary embodiment of the present invention. As shown in FIG. 1 , the test bench 100 includes: a frame structure 1 , including a plurality of interconnected columns 11 and A plurality of beams 12, the frame structure 1 is arranged to accommodate the nuclear reactor assembly 10 and the support device 20 of the nuclear reactor assembly 10 therein, and is arranged to install a restraining unit 30 for restraining the nuclear reactor assembly 10; and a platform 3 supported above the frame structure 1 by the plurality of support units 2, and configured to install an operating unit 40 for operating the nuclear reactor assembly 10 and a measuring unit 50 for measuring the nuclear reactor assembly 10 .

The confinement unit 30 can enclose the nuclear reactor assembly 10 or an array of nuclear reactor assemblies 10 . The restraint unit 30 may include a first restraint unit 31 connected to the first protrusion of the nuclear reactor assembly 10 and a second restraint unit 32 connected to the second protrusion of the nuclear reactor assembly 10 . The nuclear reactor assembly 10 includes a head portion, a main body portion connected to the head portion, and a foot portion connected to the main body portion, the head portion including a cylindrical operating portion that can be operated by the operating unit 40; the main body The base portion includes an axially extending housing, which may be, for example, a hollow hexagonal prism structure; the foot portion is used to fit with the accommodating hole on the support device 20, and the foot portion may be cylindrical. A plurality of the first protruding parts are arranged at intervals in the upper region of the main body part in the circumferential direction, and a plurality of the second protruding parts are arranged in the head part at intervals in the circumferential direction.

In the test stand 100 according to the embodiment of the present invention, by providing the frame structure 1 , the nuclear reactor assembly 10 and the support device 20 may be placed inside thereof, and the restraint unit 30 may be installed thereon to restrain the nuclear reactor assembly 10 , to meet the test requirements; by setting the platform 3 above the frame structure 1 , the operation unit 40 and the measurement unit 50 can be installed on the platform 3 to meet the operation and measurement requirements of the nuclear reactor assembly 10 .

The side of the platform 3 close to the frame structure 1 is provided with a first mounting portion, which is configured to mount the operation unit 40 . The operation unit 40 is capable of hoisting, disassembling, and shipping the nuclear reactor assembly 10 . The operating unit 40 may include a first fixing part, a first moving part and an operating part, the first fixing part is mounted on the first mounting part, the first moving part is movable relative to the first fixing part, Including changing the position and attitude, the operating part is connected to the first moving part, and the operating part is used to operate the nuclear reactor assembly 10 . The operating unit 40 is set so that its range of motion can cover the entire test stand 100 .

The side of the platform 3 away from the frame structure 1 is provided with a second mounting portion, which is configured to mount the measurement unit 50 . The measuring unit 50 may include a non-contact temperature measuring unit for measuring the temperature distribution of the wall surface of the nuclear reactor assembly 10 . The measuring unit 50 may be, for example, an infrared temperature measuring device. The measuring unit 50 includes a second fixing part, a second moving part and a measuring part, the second fixing part is mounted on the second mounting part, the second moving part can move relative to the second fixing part, including The position and attitude are changed, and the measuring part is connected to the second moving part, and the measuring part is used to measure the nuclear reactor assembly 10 . The measuring unit 50 is arranged so that its horizontal movement area can cover the entire support device 20 .

The platform 3 is provided with an opening 33 corresponding to the frame structure 1 , wherein the measurement unit 50 can measure the nuclear reactor assembly 10 through the opening 33 . Specifically, the second moving part of the measuring unit 50 passes through the opening 33, approaches the frame structure 1 below the platform 3, and can enter the interior of the nuclear reactor assembly 10, so that the measuring part connected to the second moving part The inner wall surface of the nuclear reactor assembly 10 is measured.

The frame structure 1 and the plurality of support units 2 can be mounted on the ground. The test bench 100 further includes a ladder 4 connecting the ground and the platform 2, and the operator can reach the platform 2 through the ladder 4 for monitoring and operation. The operator can observe the operation and testing process of the nuclear reactor assembly 10 through the opening 33 . Ladder 4 and platform 3 are provided with fences as protection to ensure the safety of operators.

FIG. 2 shows a schematic structural diagram of the frame structure 1 of the test bench 100 in FIG. 1 . As shown in FIG. 2 , the upright column 11 includes a body and a mounting plate disposed at the lower end of the body. The body and the mounting plate can be welded together. The mounting plate is provided with a matching hole, and the mounting plate can be fixed on the ground through the cooperation of the connecting piece and the matching hole. The matching hole is a through hole, and the connecting member may be a bolt, a screw, or the like. The bottom of the upright column 11 is provided with a reinforcing member to enhance the rigidity, and the reinforcing member can be a rib plate. The support unit 2 may be of similar structure.

The upright column 11 and the beam 12 can be connected by a flange assembly. The uprights 11 can be connected to the beams 12 at the upper and lower parts. Specifically, a laterally extending pipe fitting is provided on the side of the column 11, the pipe fitting is connected to the first flange, the end of the beam 12 is connected to the second flange, the first flange corresponds to the second flange, and Connected by connectors. The pipe fitting and the first flange can be connected by welding, and reinforcing members such as ribs can be arranged to improve the rigidity. The upright column 11 can be welded together with the pipe fittings, and the beam 12 can be welded together with the second flange. The first flange plate and the second flange plate are provided with a plurality of corresponding connection holes, and the first flange plate and the second flange plate are connected together by cooperating with the connecting piece.

The frame structure 1 includes a cube structure, the plurality of uprights 11 includes a plurality of first uprights 13 and a plurality of second uprights 14, the plurality of first uprights 13 are arranged on the edges of the cubic structure, and the plurality of second uprights 14 are adjacent to any one of the first uprights 13. A column 13 is provided; the frame structure 1 further includes a support plate 15 mounted on a plurality of second columns 14 and the first column 13 adjacent thereto. Since the support plate 15 is supported by a plurality of uprights 11 and has high rigidity, it can be used to install a horizontal force loading unit to provide a large horizontal load for the bending rigidity test.

The plurality of uprights 11 further includes a third upright 16 disposed between two adjacent first uprights 13 , wherein the constraining unit 30 mounted on the third uprights 16 can be used to constrain the top corners of the triangular array of the nuclear reactor assembly 10 . Wherein, during the limited thermal bending test of the 60° sector assembly, the nuclear reactor assemblies 10 are arranged in a triangular array.

In the embodiment of FIG. 2 , the frame structure 1 includes 8 uprights 11 , of which 6 uprights 11 are connected at the upper and lower parts by beams 12 to form a cubic structure; the other two uprights 11 are connected to each other through the beams 12 at the lower part, and are connected with The adjacent two uprights composing the cubic structure are connected, and the upper part is connected by the support plate 15 , there are four uprights 11 in total for supporting the support plate 15 . Optionally, a connecting plate can also be provided in the middle for reinforcement.

The utility model also provides a test system, comprising: a test bench 100; a nuclear reactor assembly 10; a support device 20 configured to support the nuclear reactor assembly 10; a restraint unit 30 configured to constrain the nuclear reactor assembly 10; 10 an operating unit 40 operating; a measuring unit 50 arranged to measure the nuclear reactor assembly 10; a first horizontal force loading unit 61 connected to the first protrusion of the nuclear reactor assembly 10, mounted on the support plate 15; and connected to the nuclear reactor The second horizontal force loading unit 62 of the second protruding portion of the assembly 10 is installed at the position where the frame structure 1 is located on the upper part of the support plate 15 . The first horizontal force loading unit 61 and the second horizontal force loading unit 62 are used for applying horizontal force to the nuclear reactor assembly 10 , and can be used in a bending stiffness measurement test of the nuclear reactor assembly 10 .

The test bench 100 is designed with the support device 20 as a reference. The upper plane of the support device 20 is used as a reference plane, which is basically at the same level as the ground. The elevation of the test bench 100 is based on the reference plane.

The support device 20 is provided with a plurality of accommodating holes for inserting the feet of the nuclear reactor assembly 10 . The plurality of accommodating holes are arranged in a triangular array and a single-row array. The support device 20 is provided with a plurality of reference lines for providing reference for the installation position of the frame structure 1 , the installation position of the nuclear reactor assembly 10 and the displacement adjustment amount of the nuclear reactor assembly 10 during the test. In the embodiment of the present invention, the support device 20 is provided with three reference lines, wherein two reference lines are parallel to the two edges of the triangular array, and the other reference line passes through the accommodation at the extreme end of the single-row array. The axis of the hole.

The test bench 100 has the characteristics of wide range of uses and various functions, and can meet the functional requirements of various out-of-core tests, including single-component bending stiffness test, single-component free thermal bending test, single-component restricted thermal bending test, single-row Component limited thermal bending test, 60° sector component limited thermal bending test, etc.

The test bench 100 has good applicability and can be equipped with a measurement system for measuring the temperature, deformation and contact force of the nuclear reactor assembly 10, and can integrate various structures such as a restraint unit, a horizontal force loading unit, and an operation unit.

The test bench 100 has a simple structure, high rigidity, and is not easily deformed. Through checking and calculation, the local rigidity of the test bench 100 of the present invention is two orders of magnitude higher than the bending rigidity of the nuclear reactor assembly, and the rigidity can meet the test requirements.

The test bench 100 has high safety, and the platform and the ladder are equipped with fences. The heating, temperature measurement and deformation measurement of the nuclear reactor components are all non-contact operations, which can be performed by operators remotely.

The test bench 100 of the present utility model solves various demands of the out-of-core test of the nuclear reactor assembly, and provides a strong test guarantee for the complete localization of the nuclear reactor assembly.

Although the present invention is described with reference to the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to illustrate the implementation of the present invention, and should not be construed as a limitation of the present invention. In order to clearly show the details of the various components, the various components in the drawings are not drawn to scale and therefore the proportions of the various components in the drawings should not be taken as a limitation.

Although some embodiments of the present general inventive concept have been shown and described, those of ordinary skill in the art will appreciate that changes may be made to these embodiments without departing from the principles and spirit of the present general inventive concept. The scope of the utility model is defined by the claims and their equivalents.

Claims (9)

1. A test bench (100), comprising: A frame structure (1) comprising a plurality of uprights (11) and a plurality of beams (12) connected to each other, the frame structure (1) being configured to accommodate a nuclear reactor assembly (10) and the nuclear reactor assembly (10) in its interior the support device (20), and arranged to install a restraint unit (30) for restraining the nuclear reactor assembly (10); a plurality of support units (2) arranged around the frame structure (1); and A platform (3) supported above the frame structure (1) by the plurality of support units (2) is arranged to install an operating unit (40) for operating the nuclear reactor assembly (10) and for A measuring unit (50) for measuring the nuclear reactor assembly (10). 2 . The test bench according to claim 1 , wherein a first mounting portion is provided on a side of the platform ( 3 ) close to the frame structure ( 1 ), which is configured to mount the operating unit ( 40 ). 3 . ; A second mounting portion is provided on the side of the platform (3) away from the frame structure (1), which is configured to mount the measuring unit (50). 3. Test stand according to claim 1, characterized in that the platform (3) is provided with an opening (33) corresponding to the frame structure (1), wherein the measuring unit (50) can pass through The opening (33) measures the nuclear reactor assembly (10). 4 . The test bench according to claim 1 , further comprising a ladder ( 4 ) connecting the ground and the platform ( 3 ). 5 . 5. The test bench according to claim 1, characterized in that a laterally extending pipe fitting is provided on the side of the column (11), the pipe fitting is connected with the first flange, and the cross beam (12) is The end is connected with a second flange, the first flange is corresponding to the second flange, and is connected by a connecting piece. 6. The test bench according to claim 1, wherein the frame structure (1) comprises a cubic structure, and the plurality of uprights (11) comprises a plurality of first uprights (13) and a plurality of second uprights (14), the plurality of first uprights (13) are arranged on the edges of the cubic structure, and the plurality of second uprights (14) are arranged close to any one of the first uprights (13); the The frame structure (1) further comprises a support plate (15) mounted on the plurality of second uprights (14) and the adjacent first uprights (13). 7. The test bench according to claim 6, characterized in that, the plurality of uprights (11) further comprises a third upright (16) disposed between two adjacent first uprights (13) , wherein a constraining unit (30) mounted on the third column (16) can be used to constrain the apex corners of the triangular array of the nuclear reactor assembly (10). 8. A test system comprising: The test bench (100) according to claim 6; nuclear reactor assembly (10); a support device (20) arranged to support the nuclear reactor assembly (10); a constraining unit (30) arranged to constrain the nuclear reactor assembly (10); an operating unit (40) arranged to operate the nuclear reactor assembly (10); a measuring unit (50) arranged to measure the nuclear reactor assembly (10); a first horizontal force loading unit (61) connected to the first protrusion of the nuclear reactor assembly (10), mounted on the support plate (15); and A second horizontal force loading unit (62) connected to the second protrusion of the nuclear reactor assembly (10) is installed at the position where the frame structure (1) is located on the upper part of the support plate (15). 9. The test system according to claim 8, characterized in that, a plurality of reference lines are provided on the support device (20).

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