Improved adhesion tool for tension test of LNG (Liquefied Natural Gas) insulating plate

Abstract

The utility model discloses an improved adhesion tool for LNG insulating plate tension test, which comprises a bottom plate, a plurality of rows of guide plates are arranged on the bottom plate, a guide channel area is formed between two adjacent rows of guide plates, a fixed baffle plate and a movable baffle plate are respectively arranged at two ends of the guide channel area, and the fixed baffle plate and the movable baffle plate are arranged on the bottom plate. A plurality of glue overflow open slots are formed in the bottom plate, and cushion blocks used for enabling glue surfaces of the LNG insulating plate and the tension test connector to correspond to the glue overflow open slots are arranged in the guide channel area. On one hand, the fixing requirements of the LNG insulating plates with different length specifications can be met, the operation is simplified, the adhesion efficiency is improved, and on the other hand, glue can be prevented from overflowing to the bottom plate, so that the adhesion condition of the LNG insulating plates and the bottom plate is avoided, and the LNG insulating plates can be taken out smoothly and completely.

Description

Technical Field

[0001] This utility model belongs to the field of LNG thin film tank preparation process, and relates to the tensile testing technology of thin film LNG insulation plate, specifically to an improved adhesive tooling for tensile testing of thin film LNG insulation plate. Background Technology

[0002] The assembly process of LNG (liquefied natural gas) membrane tanks requires the use of a large number of membrane-type LNG insulation plates. Due to the special performance requirements of LNG membrane tanks, the membrane-type LNG insulation plates must also meet corresponding performance requirements. Among them, the tensile strength of the LNG insulation plates is a very important indicator, so the tensile strength of the LNG insulation plates needs to be tested and verified.

[0003] The tensile performance test is now carried out using a universal testing machine. The tensile strength data is obtained by testing the universal testing machine to achieve the tensile performance test. Before the test, since the LNG insulation plate cannot be directly connected to the universal testing machine, tensile test connectors need to be glued to both ends of the LNG insulation plate. The tensile test connectors are then connected to the connecting shaft of the universal testing machine to complete the test.

[0004] To address the issues of poor adhesion strength, easy detachment, and low adhesion accuracy associated with manually bonding LNG insulation plates and tensile test connectors, patent document No. 202320284086X discloses a thin-film type adhesive fixture for tensile testing of LNG insulation plates. This fixture replaces manual bonding, ensuring adhesion strength and preventing displacement between the tensile test connector and the LNG insulation plate, thus guaranteeing the correct testing position of the LNG insulation plate. However, this fixture has some problems in practical applications, as follows:

[0005] 1. Since LNG insulation boards come in several lengths, tooling of several corresponding lengths must be provided, making the overall operation cumbersome and inefficient.

[0006] 2. During the curing process of the adhesive on the LNG insulation board and the tensile test connector, the adhesive may easily overflow onto the base plate, causing the LNG insulation board to stick to the base plate, making it difficult to remove and easy to damage the LNG insulation board during removal. Summary of the Invention

[0007] Purpose of the invention: In order to overcome the shortcomings of the existing technology, an improved adhesive tooling for tensile testing of LNG insulation plates is provided. On the one hand, it can meet the fixing requirements of LNG insulation plates of different lengths and specifications, simplify the operation and improve the adhesiveing ​​efficiency. On the other hand, it can prevent glue from overflowing onto the base plate, thereby avoiding the LNG insulation plate from sticking to the base plate and ensuring the smooth and complete removal of the LNG insulation plate.

[0008] Technical Solution: To achieve the above objectives, this utility model provides an improved adhesive fixture for tensile testing of LNG insulation boards, including a base plate. Several rows of guide plates are arranged on the base plate, and a guide channel area is formed between two adjacent rows of guide plates. Fixed baffles and movable baffles are respectively arranged at both ends of the guide channel area. Several overflow grooves are opened on the base plate. A pad is provided in the guide channel area to align the glue surface of the LNG insulation board and the tensile test connector with the overflow groove.

[0009] Furthermore, a connecting plate is provided on the base plate behind the movable baffle, and a bolt is provided on the connecting plate. The outer end of the bolt is provided with a rotating handle, and the inner end is connected to the movable baffle.

[0010] Furthermore, the overflow grooves are arranged horizontally on the base plate.

[0011] Furthermore, the two ends of the overflow groove extend beyond the two guide plates at the outermost edge, ensuring that the glue on the glue surface at the outermost edge will not overflow onto the base plate.

[0012] Furthermore, guide plates for all rows are evenly spaced on the base plate.

[0013] Beneficial effects: Compared with the prior art, this utility model has the following advantages:

[0014] 1. By integrating multiple guide channel areas onto a single base plate and adjusting the effective length of the guide channel areas using pads, operators can complete the fixing of multiple LNG insulation boards of different lengths on a single base plate, simplifying operations and improving adhesion and curing efficiency.

[0015] 2. By using pads and multiple overflow slots, the glue surface of LNG insulation boards of different lengths can be adjusted to be directly above the overflow slots, preventing glue from overflowing onto the base plate and thus avoiding adhesion between the LNG insulation board and the base plate, ensuring the smooth and undamaged removal of the LNG insulation board. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the back of the present invention;

[0019] Figure 4 This is a three-dimensional structural diagram of the present invention in its working state;

[0020] Figure 5 This is a top view of the present invention in its working state;

[0021] Figure 6 This is a bottom view of the present invention in its working state. Detailed Implementation

[0022] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0023] like Figures 1-3 As shown, this utility model provides an improved adhesive fixture for tensile testing of LNG insulation boards, including a base plate 1. Seven rows of guide plates 2 are evenly spaced on the base plate 1, with four guide plates 2 in each row. A guide channel area is formed between two adjacent rows of guide plates 2, which means six guide channel areas can be formed. Fixed baffles 7 and movable baffles 3 are respectively provided at both ends of the guide channel area. A connecting plate 4 is provided on the base plate 1 behind the movable baffles 3. Bolts 5 are provided on the connecting plate 4. A rotating handle 51 is provided at the outer end of the bolts 5, and the inner end is connected to the movable baffles 3. Four glue overflow opening grooves 6 are opened on the base plate 1. The four glue overflow opening grooves 6 are arranged horizontally on the base plate 1. The two ends of the glue overflow opening grooves 6 extend beyond the two outermost guide plates 2. The positions of the four glue overflow opening grooves 6 correspond to the glue surface 14 of three different length specifications of LNG insulation boards. A pad is provided in the guide channel area to align the glue surface 14 of the LNG insulation board and the tensile test connector 10 with the glue overflow opening grooves 6.

[0024] like Figures 4-6As shown, this embodiment applies the aforementioned bonding fixture to three LNG insulation boards of different lengths for bonding, pressing, and curing. The three LNG insulation boards are a first LNG insulation board 9, a second LNG insulation board 12, and a third LNG insulation board 13. The positions of the four overflow grooves 6 correspond to the glue surfaces 14 of the first LNG insulation board 9, the second LNG insulation board 12, and the third LNG insulation board 13, respectively. The third LNG insulation board 13 does not require a spacer, while the first LNG insulation board 9 and the second LNG insulation board 12 require a first spacer 8 and a second spacer 11 for fixation, respectively. The specific operation process is as follows:

[0025] First, place two first pads 8 and two second pads 11 in the four guide channel areas respectively. Then, glue the two ends of the two first LNG insulation plates 9, two second LNG insulation plates 12, and two third LNG insulation plates 13 to the tensile test connector 10 to form the parts to be cured. Then, place the two first LNG insulation plates 9, two second LNG insulation plates 12, and two third LNG insulation plates 13 in the six guide channel areas respectively. By rotating the bolt 5, move the baffle 3 closer to the tensile test connector 10 until it is pressed and fixed to the parts to be cured. At this time, the glue surface 14 of the two first LNG insulation plates 9, two second LNG insulation plates 12, and two third LNG insulation plates 13 is exactly above the glue overflow opening groove 6. During the glue pressing and curing process, the glue overflowing from the glue surface 14 will fall below the base plate 1 through the glue overflow opening groove 6, which can prevent the glue from overflowing onto the base plate 1, thereby avoiding the LNG insulation plate from sticking to the base plate 1 and ensuring that the LNG insulation plate can be removed smoothly and without damage.

[0026] As can be seen from the above operation process, not only is the problem of adhesion caused by glue overflow solved, ensuring the smooth and undamaged removal of LNG insulation boards, but also the adhesion and curing of three different lengths of LNG insulation boards can be completed at one time, simplifying the operation and improving the adhesion and curing efficiency.

Claims

1. An improved adhesive fixture for tensile testing of LNG insulation boards, comprising a base plate, characterized in that, The base plate is provided with several rows of guide plates, and a guide channel area is formed between two adjacent rows of guide plates. Fixed baffles and movable baffles are respectively provided at both ends of the guide channel area. Several overflow grooves are opened on the base plate. A pad is provided in the guide channel area to align the glue surface of the LNG insulation plate and the tensile test connector with the overflow groove.

2. The improved adhesive fixture for tensile testing of LNG insulation boards according to claim 1, characterized in that, A connecting plate is provided on the base plate behind the movable baffle. A bolt is provided on the connecting plate. The outer end of the bolt is provided with a rotating handle, and the inner end is connected to the movable baffle.

3. The improved adhesive fixture for tensile testing of LNG insulation boards according to claim 1, characterized in that, The overflow grooves are arranged horizontally on the base plate.

4. The improved adhesive fixture for tensile testing of LNG insulation plates according to claim 3, characterized in that, The two ends of the overflow groove extend beyond the two guide plates at the outermost ends.

5. The improved adhesive fixture for tensile testing of LNG insulation plates according to claim 1, characterized in that, Guide plates for all rows are set at equal intervals on the base plate.

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