Cabin pressure-bearing capacity test device and test method
By combining a pressurization device and a laser level, the problem of measuring deformation in pressure tests of large cabin products was solved, enabling rapid and low-cost multi-point measurements, improving measurement accuracy and reducing test costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHENGZHOU FOGUANG ELECTRIC POWER EQUIPMENT CO LTD
- Filing Date
- 2023-02-28
- Publication Date
- 2026-05-29
AI Technical Summary
In the current technology, there is a lack of effective means to measure deformation during pressure testing of large cabin products. The measurement methods have long preparation cycles, large errors and high costs, and the adjustment of measuring points is inflexible.
The system employs a combination of pressurization device, measuring scale, and laser level. Pressure is applied to the cabin via pressurization airbags, and the deformation of the cabin panels is measured using the laser level, enabling multi-point measurement and flexible adjustment.
It enables rapid and low-cost cabin pressure-bearing capacity testing, with high accuracy in multi-point measurements. The testing equipment is reusable, reducing preparation time and costs.
Smart Images
Figure CN115979830B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of cabin product quality inspection technology, and more specifically, to a cabin pressure bearing capacity testing device and testing method. Background Technology
[0002] Containers, modular shelters, and other similar products are increasingly used in daily life and production operations, such as for routine transportation and fieldwork. Before use, these products require pressure-bearing capacity testing, which is typically characterized by the deformation of the cabin panels after pressure is applied. Currently, there is a lack of effective measurement methods for the deformation generated during pressure tests on large cabin products. Existing measurement methods are time-consuming to prepare, have large errors, are costly, and lack flexibility in adjusting measuring points. Summary of the Invention
[0003] To address the shortcomings of existing technologies, this invention innovatively provides a test device and method for testing the pressure bearing capacity of container hulls. It can quickly and effectively measure the pressure bearing capacity of various types of container hulls, achieve multi-point measurement, and allow for random adjustment of measurement points. The test method has a short preparation cycle, low cost, and the test device can be reused.
[0004] To achieve the aforementioned technical objectives, the first aspect of this invention discloses a chamber pressure-bearing capacity testing device, comprising a pressurization device, a measuring scale, and a laser level.
[0005] The pressurization device is used to apply pressure to each panel of the cabin, causing the panels to deform.
[0006] The measuring scale is vertically fixed to the cabin plate before deformation, and the laser level is set perpendicular to the measuring scale. The laser level is used to emit laser light onto the scale surface of the measuring scale.
[0007] Furthermore, the pressurization device includes a pressurization airbag and a pressurization pump. The pressurization airbag is placed inside the cabin, and the pressurization pump is located outside the cabin. The pressurization pump is used to pump gas at a specified pressure into the pressurization airbag, causing the pressurization airbag to expand and apply pressure to the cabin panels.
[0008] Furthermore, there are multiple pressurization devices, and multiple pressurization airbags fill the interior of the cabin.
[0009] Furthermore, each panel is fixed with multiple of the aforementioned measuring scales.
[0010] To achieve the aforementioned technical objective, a second aspect of the present invention discloses a method for testing the pressure-bearing capacity of a hull using the hull pressure-bearing capacity testing device described in the first aspect, comprising the following steps:
[0011] One or more measuring scales are vertically fixed on each of the compartments before deformation. A laser level is set in a direction perpendicular to the measuring scales. The laser light emitted by the laser level shines on the scale surface of the measuring scale. The scale value that the laser light is aligned with at this time is recorded as the first scale value.
[0012] A pressurization device is used to apply a specified pressure to the cabin panels. After the pressurization is completed, the scale value on the measuring scale that the laser beam is aligned with at this time is recorded as the second scale value.
[0013] Calculate the difference between the first and second scale values to obtain the deformation of each compartment.
[0014] Furthermore, the application of a specified pressure to the cabin panels using a pressurization device specifically includes:
[0015] Determine the size and number of pressurized airbags based on the size of the test chamber, place the pressurized airbags into the test chamber, and close the chamber door.
[0016] Turn on the pressure pump to fill the pressure bag with gas at the specified pressure.
[0017] Furthermore, it also includes:
[0018] After the test was completed, the pressurized airbags were depressurized and removed from the cabin.
[0019] The beneficial effects of this invention are as follows:
[0020] The cabin pressure bearing capacity testing device of the present invention can quickly and effectively measure the pressure bearing capacity of various types of cabins, realize multi-point measurement, and allow random adjustment of measurement points. The test method has a short preparation cycle, low cost, and the test device can be reused. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of the test chamber according to an embodiment of the present invention;
[0022] Figure 2 This is a front view of the cabin during the cabin pressure bearing capacity test according to an embodiment of the present invention;
[0023] Figure 3 This is a top view of the cabin during the cabin pressure bearing capacity test according to an embodiment of the present invention.
[0024] In the picture,
[0025] 2. Pressurized airbag; 3. Measuring ruler; 4. Laser level; 5. Cabin. Detailed Implementation
[0026] The following description, in conjunction with the accompanying drawings, provides a detailed explanation and illustration of the chamber pressure bearing capacity testing device and testing method provided by this invention.
[0027] This embodiment specifically discloses a cabin pressure bearing capacity testing device, such as... Figure 2 and 3 As shown, the apparatus includes a pressurizing device, a measuring scale 3, and a laser level 4. The pressurizing device applies pressure to each panel of the chamber 5, causing deformation. The pressure applied by the pressurizing device is set according to specific test requirements. The measuring scale 3 is vertically fixed to the panel before deformation. The laser level 4 is set perpendicular to the measuring scale 3 and is used to emit laser light onto the scale surface of the measuring scale 3. Each measuring scale 3 can be equipped with a corresponding laser level 4, ensuring that the measuring surface of the measuring scale 3 is illuminated by laser light. After the pressure is applied and the panel deforms, the measuring scale 3 moves according to the position of the deformed panel, and the alignment of the laser level 4 with the scale line on the measuring scale 3 also changes. The difference between the aligned scale values of the laser light and the values before and after the laser light irradiates the panel can characterize the deformation of the panel at the location of the measuring scale 3.
[0028] Each compartment plate is equipped with multiple measuring scales 3, allowing for multi-point measurements as needed for the experiment. The measurement point settings are flexible, improving measurement accuracy. For example, measuring scales 3 can be installed at the edges and center of the compartment plate to measure deformation at various points.
[0029] In this embodiment, the pressurization device includes a pressurization airbag 2 and a pressurization pump. The pressurization airbag 2 is placed inside the cabin 5, and the pressurization pump is located outside the cabin 5. The pressurization pump is used to pump gas at a specified pressure into the pressurization airbag 2, causing the pressurization airbag 2 to inflate and apply pressure to the cabin panels of the cabin 5. Using air pressure for pressurization facilitates pressurization and depressurization operations, shortens the preparation period during testing, and reduces costs. Moreover, the airbag has a certain degree of flexibility and can adapt to the shape of the cabin, resulting in a more uniform force applied to each cabin panel.
[0030] There are multiple pressurization devices, with multiple pressurization airbags 2 filling the interior of the chamber 5, to ensure that the applied force is distributed throughout all the panels of the chamber 5, thereby improving the accuracy of the test.
[0031] This invention also discloses a method for testing the pressure bearing capacity of a hull using the hull pressure bearing capacity testing device described above, comprising the following steps:
[0032] S1, such as Figure 1-3As shown, one or more measuring scales 3 are vertically fixed on each of the chamber plates before deformation. In order to ensure the accuracy of the test, there are multiple measuring scales 3 on each chamber plate, and the measuring scales 3 are fixed at least on the edge and middle of the chamber plate. A laser level 4 is set in a direction perpendicular to the measuring scales 3. The laser light emitted by the laser level 4 is irradiated onto the scale surface of the measuring scale 3, and the scale value that the laser light is aligned with at this time is recorded as the first scale value.
[0033] S2. Apply a specified pressure to the cabin plate of the chamber 5 using a pressurizing device. After the pressure is applied, the cabin plate deforms, and the measuring scale 3 on the cabin plate moves with the deformation position of the cabin plate. The scale line aligned with the laser beam changes. After the pressurization is completed, record the scale value on the measuring scale 3 aligned with the laser beam at this time as the second scale value. In this embodiment, the specific pressurization process is as follows: determine the size and number of pressurizing airbags 2 according to the size of the chamber 5 to be tested, ensure that the pressurizing airbags can fill the entire chamber, and place the pressurizing airbags 2 into the chamber 5 to be tested and close the chamber door; turn on the pressurizing pump and fill the pressurizing airbags 2 with gas at a specified pressure.
[0034] S3. Calculate the difference between the first and second scale values to obtain the deformation of each panel, and then the correspondence between the specified pressure and the corresponding deformation can be obtained.
[0035] To test the deformation of the bottom panel of cabin 5, the panel can be mounted on a perforated support, suspending it in the air. A measuring scale 3 is vertically fixed on the bottom panel, and a laser level 4 can be fixed on the support, with the emitted laser beam illuminating the measuring scale 3 perpendicularly. The measuring scale 3 and laser level 4 on the top panel are arranged in the same way.
[0036] The experimental method in this embodiment also includes:
[0037] S4. After the test is completed, deflate each pressurized airbag 2 and remove the pressurized airbag 2 from the cabin 5.
[0038] The test method in this embodiment has a short preparation cycle, saves test time, and the test device can be reused multiple times to reduce test costs; the number of test points can be increased significantly as needed; and the test is less affected by the location and time.
[0039] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0040] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0041] In the description of this specification, the references to terms such as "this embodiment," "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any at least one embodiment or example. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and simple improvements made on the substantive content of the present invention should be included within the protection scope of the present invention.
Claims
1. A method for testing the pressure bearing capacity of a hull using a hull pressure bearing capacity testing device, characterized in that, The chamber pressure-bearing capacity testing device includes a pressurization device, a measuring scale, and a laser level. The pressurization device is used to apply pressure to each compartment panel of the cabin, causing the panels to deform. The pressurization device includes pressurization airbags and a pressurization pump. The pressurization airbags are placed inside the cabin, and the pressurization pump is located outside the cabin. The pressurization pump is used to pump gas at a specified pressure into the pressurization airbags, causing the airbags to inflate and apply pressure to the cabin panels. Multiple pressurization devices are used, and multiple pressurization airbags fill the interior of the cabin. The measuring scales are vertically fixed to the pre-deformation chamber plate, and multiple measuring scales are fixed on each chamber plate, with measuring scales fixed at least at the edges and center of the chamber plate. The laser level is set perpendicular to the measuring scales, and one laser level is set for each measuring scale. The laser level is used to emit laser light onto the scale surface of the measuring scale. The test method for the pressure-bearing capacity of the cabin includes the following steps: Multiple measuring scales are vertically fixed on each of the compartments before deformation. There are multiple measuring scales on each compartment. At least the measuring scales are fixed on the edge and middle of the compartment. A laser level is set in the direction perpendicular to the measuring scales. One laser level is set for each measuring scale. The laser light emitted by the laser level illuminates the scale surface of the measuring scale. The scale value that the laser light is aligned with at this time is recorded as the first scale value. A pressurization device is used to apply a specified pressure to the cabin panels. The specific pressurization process is as follows: the size and number of pressurization airbags are determined according to the size of the cabin to be tested, and the pressurization airbags are placed into the cabin to be tested. The cabin door is closed, the pressurization pump is turned on, and gas at a specified pressure is filled into the pressurization airbags. After the pressurization is completed, the scale value on the measuring scale that the laser beam is aligned with at this time is recorded as the second scale value. Calculate the difference between the first and second scale values to obtain the deformation of each compartment. After the test was completed, the pressurized airbags were depressurized and removed from the cabin.