Tool for testing compression strength of LNG (Liquefied Natural Gas) polyurethane foam sample

Abstract

The utility model discloses a tool for testing the compression strength of an LNG (Liquefied Natural Gas) polyurethane foam sample, which comprises a pressure plate, a connecting plate arranged on the pressure plate, a control plate arranged on the connecting plate, a butt joint block matched on the control plate and a connecting column connected on the butt joint block, the bottom face of the butt joint block is matched with the disc face of the control disc, and the length of the disc face of the control disc is larger than that of the bottom face of the butt joint block. According to the utility model, through the matching relationship between the control disc with the spherical surface structure and the butt joint block, the pressure plate has the function of being adaptive to an LNG polyurethane foam sample, so that the accuracy of a compression strength test result is improved, and the test effect is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the field of liquefied natural gas, relates to a compression strength testing technology for LNG polyurethane foam samples, and specifically relates to a tool used for compression strength testing of LNG polyurethane foam samples. Background Art

[0002] Liquefied natural gas (LNG) storage tanks are special warehouses used to store and transport liquefied natural gas, which are usually installed on LNG carriers. Due to the characteristics of liquefied natural gas, the storage tanks used to store liquefied natural gas on LNG carriers must have extremely high standards of sealing, flame retardancy, insulation, etc. LNG polyurethane foam modules are components that make up the inner wall of the storage tank. Compression resistance is an important performance of the LNG polyurethane foam module. Otherwise, it cannot meet the use requirements of the LNG storage tank, so the LNG polyurethane foam module needs to be subjected to compression strength testing.

[0003] The existing testing method is to compress the LNG polyurethane foam module by controlling the pressure plate through a press to obtain the compression strength test. However, in actual testing, since the surface of the LNG polyurethane foam module is not absolutely flat, the pressure plate cannot completely fit the LNG polyurethane foam module, which affects the test accuracy and causes the final compression strength test results to be less accurate, making it difficult to achieve the ideal test effect. Summary of the Invention

[0004] Purpose of the invention: In order to overcome the shortcomings of the existing technology, a tooling for compressive strength testing of LNG polyurethane foam samples is provided. Through the matching relationship between the control disk with a spherical surface structure and the docking block, the pressure plate has the function of adaptively fitting the LNG polyurethane foam sample, thereby improving the accuracy of the compression strength test results and ensuring the test effect.

[0005] Technical solution: To achieve the above-mentioned purpose, the utility model provides a tool for compressive strength testing of LNG polyurethane foam samples, including a pressure plate, a connecting plate arranged on the pressure plate, a control plate installed on the connecting plate, a docking block matched with the control plate, and a connecting column connected to the docking block. The disk surface of the control plate is a spherical surface structure, the bottom surface of the docking block is matched with the disk surface of the control plate, and the disk surface length of the control plate is greater than the bottom surface length of the docking block.

[0006] Furthermore, the control disk is provided with a plurality of screw holes and positioning screws fitted in the screw holes, and the control disk is mounted on the connecting disk via the positioning screws.

[0007] Furthermore, a protective cover is provided on the connection disk, and the protective cover is used to cover the control disk and the docking block.

[0008] Furthermore, a protective cover extends upward from the top of the docking block to form a protruding block, and four locking bolts are provided on the connecting column, and the four locking bolts are used to lock the protruding block.

[0009] Furthermore, the pressure plate, connecting plate and control plate are coaxially arranged.

[0010] Furthermore, four locking bolts are radially symmetrically arranged on the connecting column.

[0011] Beneficial effect: Compared with the prior art, the utility model has the function of adaptively fitting the LNG polyurethane foam sample through the matching relationship between the control plate with a spherical surface structure and the docking block, which solves the problem that the pressure plate and the LNG polyurethane foam sample cannot be fully fitted, thereby improving the accuracy of the compression strength test results and ensuring the test effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 The explosion of the utility model Figure 1 ;

[0014] Figure 3 The explosion of the utility model Figure 2 ;

[0015] Figure 4 This is a schematic diagram of the connection between the docking block and the connecting column in the present invention;

[0016] Figure 5 This is a cross-sectional view of the connection between the control panel and the docking block in the present invention;

[0017] Figure 6 This is a cross-sectional view of the structural connection of the present utility model. DETAILED DESCRIPTION

[0018] The present invention is further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, modifications of various equivalent forms of the present invention made by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0019] like Figures 1 to 6As shown, the utility model provides a tool for testing the compression strength of LNG polyurethane foam samples, including a pressure plate 1, a connecting plate 2 arranged on the pressure plate 1, a control plate 3 installed on the connecting plate 2, a docking block 4 matched with the control plate 3, a connecting column 6 connected to the docking block 4, and a protective cover 5 arranged on the connecting plate 2. The control plate 3 is provided with a plurality of screw holes 31 and positioning screws 7 matched in the screw holes 31. The control plate 3 is installed on the connecting plate 2 through these positioning screws 7. The pressure plate 1, the connecting plate 2 and the control plate 3 are coaxially arranged. The disk surface of the control plate 3 is a spherical surface structure. The bottom surface of the docking block 4 is matched with the disk surface of the control plate 3. The disk surface length of the control plate 3 is greater than the bottom surface length of the docking block 4, so that the control plate 3 has a certain movable adjustment space. The protective cover 5 covers the control plate 3 and the docking block 4. The top of the docking block 4 extends upward from the protective cover 5 to form a protruding block 41. Four locking bolts 8 are symmetrically arranged on the connecting column 6. The four locking bolts 8 are used to lock the protruding block 41 to achieve the connection between the docking block 4 and the connecting column 6.

[0020] In this embodiment, the above-mentioned tooling is applied to the compression strength test of the LNG polyurethane foam sample 100. The specific operation process is as follows:

[0021] First, connect the connecting column 6 to the press, then start the press to press the entire tooling down through the connecting column 6 until the pressure plate 1 is pressed down on the LNG polyurethane foam sample 100. During the pressing process of the pressure plate 1, since the control disk 3 and the docking block 4 are in a spherical contact state, the control disk 3 has a certain movable adjustment space, so that the pressure plate 1 can adaptively fine-tune the angle and position through the control disk 3. Even if there is an unevenness with the surface of the LNG polyurethane foam sample 100, the pressure plate 1 can also achieve complete fit with the surface of the LNG polyurethane foam sample 100. After the test is completed, the LNG polyurethane foam sample 100 can be taken out.

[0022] During the above test process, the pressure plate 1 can fully fit with the surface of the LNG polyurethane foam sample 100, solving the problem that the pressure plate 1 cannot fully fit with the LNG polyurethane foam sample 100, thereby improving the accuracy of the compression strength test results and ensuring the test effect.

Claims

1. A tool for compressive strength testing of LNG polyurethane foam samples, characterized in that: It includes a pressure plate, a connecting plate arranged on the pressure plate, a control plate installed on the connecting plate, a docking block matched with the control plate, and a connecting column connected to the docking block. The disk surface of the control plate is a spherical surface structure, the bottom surface of the docking block is matched with the disk surface of the control plate, and the disk surface length of the control plate is greater than the bottom surface length of the docking block.

2. The tool for compressive strength testing of LNG polyurethane foam samples according to claim 1, characterized in that: The control disk is provided with a plurality of screw holes and positioning screws matched in the screw holes, and the control disk is mounted on the connecting disk through the positioning screws.

3. The tool for compressive strength testing of LNG polyurethane foam samples according to claim 1, characterized in that: A protective cover is provided on the connecting disk, and the protective cover is used to cover the control disk and the docking block.

4. The tool for compressive strength testing of LNG polyurethane foam samples according to claim 3, characterized in that: A protective cover extends upward from the top of the docking block to form a protruding block. Four locking bolts are provided on the connecting column, and the four locking bolts are used to lock the protruding block.

5. The tool for compressive strength testing of LNG polyurethane foam samples according to claim 1, characterized in that: The pressure plate, the connecting plate and the control plate are coaxially arranged.

6. The tool for compressive strength testing of LNG polyurethane foam samples according to claim 4, characterized in that: Four locking bolts are radially symmetrically arranged on the connecting column.

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