A spherical steel containment performance test device

Abstract

The invention belongs to the technical field of testing devices, and provides a spherical steel containment performance test device, which performs a clamping test on the spherical steel containment, wherein a loading platform is installed above a base platform and is movably connected to the base platform; a spherical support is installed on the surface of the base platform, and a heating device for heating the spherical steel containment is provided at the center of the spherical support; a fixing fixture is installed on the periphery of the heating device, and clamps and fixes the spherical steel containment; a driving mechanism can push the loading platform to move on the surface of the base platform. The present invention installs the spherical steel containment on the loading platform, heats the spherical steel containment through the heating device of the upper spherical support, and drives the loading platform to move through the driving mechanism, thereby simulating the seismic resistance level of the spherical steel containment under the working state of the reactor, and achieving the purpose of testing the seismic-high temperature yield performance of the spherical steel containment.

Description

Technical Field

[0001] The invention belongs to the technical field of testing devices, and in particular relates to a spherical steel containment performance testing device. Background Art

[0002] As a clean energy, nuclear power has been widely used in many countries after long-term practical accumulation and scientific research, with its advantages of low pollution, relatively stable operation and relatively mature technology. However, the safe operation of nuclear power plants has attracted much attention in recent years. After the Chernobyl nuclear power plant leak in the Soviet Union in 1986 and the Fukushima nuclear accident in 2011, researchers from all over the world have begun to re-examine the safety of nuclear power plants. In order to ensure the safety of nuclear power plants and the surrounding environment, nuclear power plants are designed with three barriers. The first is the fuel element cladding, the second is the pressure boundary that contains all the reactor coolants, and the third barrier is the containment. Among them, the second steel pressure vessel mostly uses a spherical shell or a disc-shaped thin shell. In addition, spherical containment is also commonly used in the storage and transportation of oil and gas in the petrochemical industry. However, due to the large actual size of the structure, it is difficult to conduct full-scale tests on spherical containment. Summary of the invention

[0003] In order to overcome the problems existing in the prior art, the purpose of the present invention is to provide a spherical steel containment performance test device.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a spherical steel containment performance test device, which performs a clamping test on the spherical steel containment, comprising: a basic platform, a loading platform, a spherical support, a fixing fixture and a driving mechanism; the loading platform is installed above the basic platform and is movably connected to the basic platform; the spherical support is installed on the surface of the basic platform, and a heating device for heating the spherical steel containment is provided at the center of the spherical support; the fixing fixture is installed on the periphery of the heating device and clamps and fixes the spherical steel containment; one end of the driving mechanism is connected to the loading platform, and the other end of the driving mechanism is connected to the basic platform, and the driving mechanism can push the loading platform to move on the surface of the basic platform.

[0005] Its main working principle is to put the spherical steel containment on the spherical support and clamp it with a fixing clamp. After the spherical steel containment is fixed, the heating device can be started to heat the spherical steel containment to simulate the heating condition of the reactor, and at the same time, the driving mechanism is started to drive the loading platform to move, thereby simulating the earthquake condition. In this way, the seismic-high temperature yield performance of the spherical steel containment is tested.

[0006] Preferably, the heating device comprises a rib, a heating cavity surrounded by the rib, and a heating rod;

[0007] The heating rod is installed in the heating chamber to heat the spherical steel containment vessel.

[0008] Preferably, the heating device further comprises a fixing plate;

[0009] The heating rods are provided in multiple groups, and the multiple groups of heating rods are limited and fixed by the fixing plate.

[0010] Preferably, the fixing fixture is installed on the periphery of the retaining edge;

[0011] The fixing fixture comprises a clamping portion and a clamping portion arranged on the periphery of the retaining edge, and the clamping portion and the clamping portion are arranged opposite to each other;

[0012] The cross section of the clamp gradually narrows from bottom to top, and the cross section of the clamp gradually expands from bottom to top. The narrowing amplitude of the clamp is opposite to the expansion amplitude of the clamp, and a clamping edge is left between the clamp and the clamp for clamping the spherical steel containment.

[0013] Preferably, the clamping portion is an annular clamping edge or a plurality of clamping blocks arranged around the retaining edge;

[0014] When the clamping portion is an annular clamping edge, the clamping edge is arranged on the periphery of the retaining edge with the spherical support as the center;

[0015] When the clamping portion is a plurality of clamping blocks, the plurality of clamping blocks are distributed around the periphery of the retaining edge with the spherical support as the center.

[0016] Preferably, the loading platform is provided with rollers for the loading platform to move on the base platform.

[0017] Preferably, the driving mechanism comprises a hydraulic cylinder and a base.

[0018] The driving end of the hydraulic cylinder is fixedly connected to the loading platform, and the main body of the hydraulic cylinder is fixedly connected to the base platform through the base.

[0019] Preferably, a reaction wall is provided on the surface of the base platform, the action surface of the reaction wall faces the loading platform, and the base is fixedly connected to the action surface of the reaction wall.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. By installing the spherical steel containment on the loading platform, heating the spherical steel containment through the heating device of the spherical support above, and driving the loading platform to move through the driving mechanism, the seismic resistance level of the spherical steel containment under the working state of the reactor is simulated to achieve the purpose of testing the seismic-high temperature yield performance of the spherical steel containment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0023] Figure 1 This is the overall schematic diagram of the spherical steel containment performance test device;

[0024] Figure 2 It is a cross-sectional schematic diagram of the spherical steel containment performance test device;

[0025] Figure 3 is a schematic diagram of a heating device;

[0026] Figure 4 is a schematic diagram of the fixing fixture;

[0027] 1. Basic platform; 10. Reaction wall; 2. Loading platform; 20. Roller; 3. Spherical bearing; 30. Heating device; 300. Retaining edge; 301. Heating chamber; 302. Heating rod; 303. Fixed plate; 4. Fixing fixture; 40. Clamping part; 41. Clamping part; 42. Clamping edge; 5. Driving mechanism; 50. Hydraulic cylinder; 51. Base; 6. Spherical steel containment shell. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the present invention, and the embodiments described are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the art without making creative work are within the scope of protection of the present invention.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0030] This solution discloses a spherical steel containment performance test device, the main purpose of which is to fix the spherical steel containment 6 and test its seismic-high temperature yield performance, such as Figure 1-Figure 4As shown, it includes a base platform 1 as a reference surface, a loading platform 2 for driving the spherical steel containment shell 6 to move, a spherical support 3 for heating the spherical steel containment shell 6, a fixing fixture 4 for clamping and fixing the spherical steel containment shell 6, and a driving mechanism 5 for driving the loading platform 2 to move. The loading platform 2 is installed above the base platform 1, and the fixture platform can be moved and movably connected on the surface of the base platform 1 under the drive of the driving mechanism 5, thereby simulating the situation of an earthquake.

[0031] A spherical support 3 is installed on the surface of the base platform 1, and the spherical steel containment vessel 6 needs to be placed on the spherical support 3 before testing. A heating device 30 is arranged at the center of the spherical support 3. During the test, the heating device 30 can continuously generate heat and heat the spherical steel containment vessel 6 to simulate the heating condition of the reactor.

[0032] At the same time, the fixing clamp 4 is installed on the periphery of the heating device 30, and the spherical steel containment shell 6 is clamped and fixed. At the same time, one end of the driving mechanism 5 is connected to the loading platform 2, and the other end of the driving mechanism 5 is connected to the base platform 1. The driving mechanism 5 is started. The driving mechanism 5 can push the loading platform 2 to move on the surface of the base platform 1, thereby simulating the working scene of the spherical steel containment shell 6 under an earthquake state.

[0033] Specifically, the heating device 30 includes a rib 300, a heating cavity 301 surrounded by the rib 300, and a heating rod 302. The heating rod 302 is installed in the heating cavity 301. During installation, the spherical steel containment vessel 6 will be covered on the periphery of the rib 300. The cavity of the spherical steel containment vessel 6 and the heating cavity 301 form a sealed space to simulate the space inside the reactor. The sealed space is continuously heated by the heating device 30 to simulate the heating situation of the reactor.

[0034] In a further optional embodiment, in order to improve the efficiency and power of heating, as Figure 3 As shown, multiple groups of heating rods 302 need to be provided, and each group of heating rods 302 is vertically installed in the heating cavity 301 , and multiple groups of heating parts are fixed by a heating plate, and the specific heating plate can be a ceramic fixing plate 303 .

[0035] In addition, the fixing fixture 4 is installed on the periphery of the retaining edge 300; the fixing fixture 4 includes a clamping portion 40 and a clamping portion 41 disposed on the periphery of the retaining edge 300, and the clamping portion 40 and the clamping portion 41 are disposed opposite to each other, such as Figure 4As shown, since the surface of the spherical steel containment shell 6 is in an arc shape as a whole, in order to better fit with the surface of the spherical steel containment shell 6, it is necessary to set the cross section of the clamping portion 40 to be gradually narrowed from bottom to top, and the cross section of the clamping portion 41 to be gradually expanded from bottom to top. The narrowing amplitude of the clamping portion 40 is opposite to the expansion amplitude of the clamping portion 41, so as to better cooperate with the bottom of the spherical steel containment shell 6, and a clamping edge 42 is left between the clamping portion 40 and the clamping portion 41 for clamping the spherical steel containment shell 6.

[0036] In some optional embodiments, the clamping portion 41 is an annular clamping edge 42 or a plurality of clamping blocks arranged around the retaining edge 300; when the clamping portion 41 is an annular clamping edge 42, the clamping edge 42 is arranged on the periphery of the retaining edge 300 with the spherical support 3 as the center of the circle; when the clamping portion 41 is a plurality of clamping blocks, the plurality of clamping blocks are distributed on the periphery of the retaining edge 300 with the spherical support 3 as the center of the circle.

[0037] In order to allow the loading platform 2 to move smoothly on the base platform 1, a plurality of groups of rollers 20 are installed under the loading platform 2 to improve the smoothness of the movement of the loading platform 2 by means of rolling friction.

[0038] In addition, the driving mechanism includes a hydraulic cylinder 50 and a base 51. The driving end of the hydraulic cylinder 50 is fixedly connected to the loading platform 2. The main body of the hydraulic cylinder 50 is fixedly connected to the base platform 1 through the base 51. The reciprocating movement of the driving end of the hydraulic cylinder 50 is controlled to control the reciprocating movement of the loading platform 2, and the earthquake situation is simulated by the movement of the loading platform 2.

[0039] In order to better support the hydraulic cylinder 50, a reaction wall 10 is set on the surface of the base platform 1, the action surface of the reaction wall 10 faces the loading platform 2, and the base 51 is fixedly connected to the action surface of the reaction wall 10. The hydraulic cylinder 50 tightens the reaction wall 10, so that the force of the driving end of the hydraulic cylinder 50 can be better transmitted to the loading platform 2.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Therefore, any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A spherical steel containment performance test device, which performs a clamping test on a spherical steel containment, characterized in that: include: Basic platform, loading platform, spherical support, fixing fixture and driving mechanism; The loading platform is installed above the base platform and is movably connected to the base platform; the spherical support is installed on the surface of the loading platform, and a heating device for heating the spherical steel containment is provided at the center of the spherical support; the fixing fixture is installed on the periphery of the heating device and clamps and fixes the spherical steel containment; one end of the driving mechanism is connected to the loading platform, and the other end of the driving mechanism is connected to the base platform, and the driving mechanism can push the loading platform to move on the surface of the base platform; The heating device comprises a rib, a heating cavity surrounded by the rib, and a heating rod; the heating rod is installed in the heating cavity to heat the spherical steel containment shell; The fixing fixture is installed on the periphery of the retaining edge; the fixing fixture includes a clamping portion and a clamping portion arranged on the periphery of the retaining edge, and the clamping portion and the clamping portion are arranged opposite to each other; the cross section of the clamping portion gradually narrows from bottom to top, and the cross section of the clamping portion gradually expands from bottom to top, the narrowing amplitude of the clamping portion is opposite to the expanding amplitude of the clamping portion, and a clamping edge for clamping the spherical steel containment is reserved between the clamping portion and the clamping portion; The clamping portion is an annular clamping edge or a plurality of clamping blocks arranged around the retaining edge; when the clamping portion is an annular clamping edge, the clamping edge is arranged on the periphery of the retaining edge with the spherical support as the center of the circle; when the clamping portion is a plurality of clamping blocks, the plurality of clamping blocks are distributed on the periphery of the retaining edge with the spherical support as the center of the circle.

2. The spherical steel containment performance test device according to claim 1 is characterized in that: The heating device further comprises a fixing plate; the heating rods are provided in a plurality of groups, and the plurality of groups of heating rods are fixed in a limited position by the fixing plate.

3. The spherical steel containment performance test device according to claim 1, characterized in that: The loading platform is provided with rollers for the loading platform to move on the base platform.

4. The spherical steel containment performance test device according to claim 1, characterized in that: The driving mechanism comprises a hydraulic cylinder and a base, the driving end of the hydraulic cylinder is fixedly connected to the loading platform, and the main body of the hydraulic cylinder is fixedly connected to the base platform through the base.

5. The spherical steel containment performance test device according to claim 4, characterized in that: A reaction wall is provided on the surface of the base platform, the action surface of the reaction wall faces the loading platform, and the base is fixedly connected to the action surface of the reaction wall.

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