A pre-embedded assembly structure and method of a sliding anchor plate of an insulation board of a liquefied argon gas thin film tank

Abstract

The application discloses a pre-embedding assembly structure and method of a sliding anchor disc of a liquefied argon gas film tank insulation board, which comprises an insulation composite board, wherein the insulation composite board comprises a reinforced foam board, an upper plywood and a lower plywood, the upper plywood and the lower plywood are adhered to the top and the bottom of the reinforced foam board respectively, a plurality of anchor disc holes are formed in the upper plywood, the anchor disc holes and the reinforced foam board form anchor disc grooves, and a sliding anchor disc is pre-embedded in the anchor disc grooves; glue overflow grooves are formed in the back of the upper plywood around the anchor disc holes, and the glue overflow grooves are used for resisting and collecting the overflowed glue when the reinforced foam board and the upper plywood are pressed and adhered. The application can prevent the overflowed glue from entering the anchor disc grooves on the basis of guaranteeing the adhesion effect of the reinforced foam board and the upper plywood, guarantee the pre-embedding effect of the sliding anchor disc, and improve the forming quality of the liquefied argon gas film tank insulation board.

Description

Technical Field

[0001] This invention relates to the technology for manufacturing liquefied argon film tanks, specifically to a pre-embedded assembly structure and method for a sliding anchor plate of an insulating plate in a liquefied argon film tank. Background Technology

[0002] Liquefied argon membrane tanks are large, low-pressure storage tanks. Their internal temperature is lower than that of liquefied natural gas. The tanks contain numerous membrane insulation panels, reinforced at the bottom and top with foam-bonded plywood, and fitted with accessories. (Specific details are as follows...) Figure 1 and Figure 2 As shown, the membrane tank insulation board includes a reinforced foam board 1, an upper plywood 2 and a lower plywood disposed on the front and back sides of the reinforced foam board 1. The upper plywood 2 has several anchoring plate grooves 5. A sliding anchoring plate 3 is installed in the anchoring plate groove 5. The sliding anchoring plate 3 is movably disposed in the anchoring plate groove 5. There needs to be a omnidirectional gap space between the sliding anchoring plate 3 and the anchoring plate groove 5. That is to say, when the sliding anchoring plate 3 is located at the center of the anchoring plate groove 5, the sliding anchoring plate 3 can slide in any direction within the anchoring plate groove 5 within a certain gap range.

[0003] This design primarily involves welding a stainless steel membrane to anchor plates in this area. Considering that the main membrane in this area is located around specific equipment, its shape cannot be too corrugated, resulting in insufficient extension distance of the main membrane. The state of the main membrane in its cold state (near -186℃) differs from that in its normal temperature state. Therefore, it is necessary to consider allowing the main membrane to slide in all directions to compensate for the insufficient extension problem. Thus, multiple sliding anchor plates 3 are used to fix the specific main membrane.

[0004] The aforementioned sliding anchor plate 3 must be pre-embedded in the anchor plate groove 5 to be slidable. It cannot be anchored to the upper plywood 2 with rivets like the anchor strip 6. In the actual pressing and assembly process of the insulation board, since the reinforced foam board 1 and the upper plywood 2 are bonded and fixed by applying glue and pressing, and the glue used is a low-temperature resistant polyurethane glue, which will foam and expand during the curing process, and the bonding surface must be 100% bonded, all bonding surfaces will have glue squeezed out around the edges under the pressure of the press. The squeezed glue will expand, causing the space around the sliding anchor plate 3 to be occupied or directly bonded to the sliding anchor plate 3, resulting in insufficient sliding space. If the glue overflow exceeds 0.75mm, the sliding distance of the sliding anchor plate 3 will be insufficient or it will be bonded and unable to move. These do not meet the design requirements, which are very stringent.

[0005] Ensuring that no glue oozes out around the sliding anchor plate 3 while maintaining appropriate strength is a very difficult problem. Current methods address this by not applying glue around the sliding anchor plate 3, using a circular cardboard block during glue application, removing the cardboard after application, and then placing the sliding anchor plate 3 into pre-drilled holes in the plywood. The problem with this method is that the width of the un-glue-applied area is difficult to guarantee. Due to variations in glue viscosity and the flatness of the foam board, there is significant uncertainty. There is a possibility of glue oozing out, or large areas of un-glue-applied areas not being properly bonded due to insufficient glue pressure. Both of these factors affect quality, making it difficult to guarantee the quality of existing liquefied argon gas membrane tank insulation boards. Summary of the Invention

[0006] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this invention provides a pre-embedded assembly structure and method for the sliding anchor plate of the liquefied argon film tank insulation plate. This method can ensure the bonding effect between the reinforced foam board and the upper plywood, prevent overflowing glue from entering the anchor plate groove, ensure the pre-embedding effect of the sliding anchor plate, and improve the molding quality of the liquefied argon film tank insulation plate.

[0007] Technical Solution: To achieve the above objectives, this invention provides a pre-embedded assembly structure for a sliding anchor plate of an insulating plate in a liquefied argon film tank. The structure includes an insulating composite plate comprising a reinforced foam board, an upper plywood, and a lower plywood. The upper and lower plywoods are respectively bonded to the top and bottom of the reinforced foam board. The upper plywood has several anchor plate holes, which, together with the reinforced foam board, form anchor plate grooves. A sliding anchor plate is pre-embedded within these grooves. An overflow groove is formed on the back of the upper plywood around the anchor plate holes, serving to block and collect overflow adhesive when the reinforced foam board and the upper plywood are pressed together.

[0008] Furthermore, the overflow groove is an annular groove structure.

[0009] Furthermore, the overflow groove and the anchoring disc hole are coaxial.

[0010] Furthermore, the width of the glue overflow groove is 5-6mm, and the depth is 3-5mm. This width and depth range was obtained through numerous experiments, ensuring that the glue overflow groove can perfectly accommodate the overflowing glue without affecting the bonding effect due to excessively large dimensions.

[0011] Furthermore, the inner ring of the overflow groove has a width of 3-4 mm. This ring width design allows the inner ring of the overflow groove to have a good glue-blocking effect, so that the overflowing glue can be completely blocked in the overflow groove and will not enter the anchor plate groove. The glue in the overflow groove will adhere to the reinforced foam board, improving the structural connection strength to a certain extent, and the 3-4 mm ring width design will not affect the overall connection strength.

[0012] Based on the above-mentioned pre-embedded assembly structure, the present invention also provides a method for pre-embedding a sliding anchor plate for an insulating plate of a liquefied argon film tank, comprising the following steps:

[0013] S1: First, design and manufacture the glue-blocking tooling according to the structure and size of the anchor plate hole and the glue overflow groove;

[0014] S2: Place the plywood with the back side facing up under the glue application equipment, and fit the glue-blocking fixture onto the anchor plate hole so that the glue-blocking fixture can cover the anchor plate hole and the glue overflow groove.

[0015] S3: Start the glue application equipment to apply glue to the back of the plywood to form a glue strip;

[0016] S4: After the glue application is completed, remove the glue-blocking fixture, fit the sliding anchor plate into the anchor plate hole, and then press the front of the reinforced foam board down onto the back of the upper plywood.

[0017] S5: During the pressing process of the reinforced foam board and the upper plywood, the overflowing glue flows into the glue overflow groove, and the inner ring of the glue overflow groove prevents the glue from entering the anchor plate groove.

[0018] S6: Start the glue-applying equipment to apply glue to the back of the reinforced foam board to form a glue strip;

[0019] S7: Press the front side of the plywood down onto the back side of the reinforced foam board;

[0020] S8: Transfer the entire composite board into the press for pressing, ensuring that the adhesive cures under pressure, and complete the pre-embedded installation of the sliding anchor plate on the insulating composite board.

[0021] Furthermore, in step S1, the adhesive-blocking tooling includes a positioning part and an adhesive-blocking part. The positioning part is located at the bottom of the adhesive-blocking part and matches the anchor plate hole. The adhesive-blocking part is used to cover the anchor plate hole and the adhesive overflow groove.

[0022] Furthermore, the positioning part and the glue-blocking part are coaxial circular structures, and the positioning part is provided with an operating handle to facilitate the operation of the glue-blocking tooling.

[0023] Beneficial effects: Compared with the prior art, the design of the overflow groove of this invention can resist and collect the overflow glue between the reinforced foam board and the upper plywood, completely preventing the overflow glue from entering the anchor plate groove. In addition, a special glue-blocking tooling is designed to achieve the pre-embedding of the sliding anchor plate while ensuring the adhesion effect between the reinforced foam board and the upper plywood. This improves the pre-embedding effect of the sliding anchor plate, ensures the use effect of the sliding anchor plate, and can improve the molding quality of the liquefied argon film tank insulation plate. Attached Figure Description

[0024] Figure 1 This is a front view of the plywood in the insulation board of an existing thin-film tank.

[0025] Figure 2 A diagram showing the pre-embedded structure of the sliding anchor plate in the existing membrane tank insulation plate;

[0026] Figure 3 This is a schematic diagram of the pre-embedded assembly structure of the sliding anchor plate in this invention;

[0027] Figure 4 This is a schematic diagram of the pre-embedding process of the sliding anchor plate in this invention;

[0028] Figure 5 This is a structural diagram of the adhesive-blocking tooling;

[0029] Figure 6 This is a schematic diagram illustrating the use of the adhesive-blocking tooling. Detailed Implementation

[0030] 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 for illustrative purposes only and are not intended to limit the scope of the invention. After reading this invention, any modifications of the invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0031] Combination Figures 1-4As shown, this invention provides a pre-embedded assembly structure for a sliding anchor plate of an insulating plate in a liquefied argon film tank. The structure includes an insulating composite plate comprising a reinforced foam board 1, an upper plywood 2, and a lower plywood 9. The upper plywood 2 and lower plywood 9 are respectively bonded to the top and bottom of the reinforced foam board 1. An anchoring strips 6 are fixedly installed on the upper plywood 2. Three anchor plate holes 21 are formed on the upper plywood 2, creating anchor plate grooves 5 with the reinforced foam board 1. A sliding anchor plate 3 is pre-embedded within the anchor plate grooves 5. A heat insulation plate 4 is installed at the bottom of the sliding anchor plate 3. An overflow groove 7 is formed on the back of the upper plywood 2 around the anchor plate holes 21. The overflow groove 7 is an annular groove structure and coaxial with the anchor plate holes. In this embodiment, the overflow groove 7 has a width of 5 mm and a depth of 3 mm. The inner ring of the overflow groove 7 has a width of 3 mm. The glue overflow groove 7 is used to block and collect the overflow glue 8 when the reinforced foam board 1 and the upper plywood 2 are pressed together.

[0032] Based on the above-mentioned pre-embedded assembly structure, the present invention also provides a method for pre-embedding a sliding anchor plate for an insulating plate of a liquefied argon film tank, referring to... Figure 3 and Figure 4 It includes the following steps:

[0033] S1: First, design and manufacture the glue-blocking tooling according to the structure and size of the anchoring disc hole 21 and the overflow groove 7;

[0034] like Figure 5 As shown, the glue-blocking fixture includes a positioning part 12 and a glue-blocking part 11. The positioning part 12 is located at the bottom of the glue-blocking part 11. The positioning part 12 matches the anchoring disc hole 21. The glue-blocking part 11 can cover the anchoring disc hole 21 and the glue overflow groove 7 at the same time. The positioning part 12 and the glue-blocking part 11 are coaxial circular structures. An operating handle 13 is provided on the positioning part 12 to facilitate the operation of the glue-blocking fixture.

[0035] S2: Place the upper plywood 2 with the back side facing up under the glue application equipment, and position the positioning part 12 of the glue blocking fixture on the anchor plate hole 21 to achieve positioning, so that the glue blocking part 11 of the glue blocking fixture can cover the anchor plate hole 21 and the glue overflow groove 7.

[0036] S3: As Figure 6 As shown, the glue-spraying equipment is started to spray glue onto the back of the plywood 2 to form a glue strip. Due to the glue-blocking effect of the glue-blocking part 11 of the glue-blocking fixture, the glue strip just avoids the glue overflow groove 7 and the inner ring area of ​​the glue overflow groove 7.

[0037] S4: After the glue application is completed, remove the glue-blocking fixture, fit the sliding anchor plate 3 into the anchor plate hole 21, and then press the front of the reinforced foam board 1 down onto the back of the upper plywood 2.

[0038] S5: During the pressing process of reinforced foam board 1 and upper plywood 2, the overflow glue 8 flows into the overflow groove 7, and the inner ring of the overflow groove 7 prevents the overflow glue 8 from entering the anchoring plate groove 5.

[0039] S6: Start the glue-applying equipment to apply glue to the back of the reinforced foam board 1 to form a glue strip;

[0040] S7: Press the front side of the lower plywood 9 down onto the back side of the reinforced foam board 1;

[0041] S8: Transfer the entire composite board into the press for pressing, ensuring that the adhesive cures under pressure, and complete the pre-embedded installation of the sliding anchor plate 3 on the insulating composite board.

[0042] Combining the above-mentioned pre-embedded assembly structure and pre-embedding method, compared with the prior art, the design of the overflow groove 7 can resist and collect the overflow glue 8 between the reinforced foam board 1 and the upper plywood 2, completely preventing the overflow glue 8 from entering the anchoring plate groove 5. In addition, a special glue-blocking tooling is designed, which can realize the pre-embedding of the sliding anchoring plate 3 while ensuring the bonding effect between the reinforced foam board 1 and the upper plywood 2, thereby improving the pre-embedding effect of the sliding anchoring plate 3, ensuring the use effect of the sliding anchoring plate 3, and improving the molding quality of the liquefied argon film tank insulation plate.

Claims

1. A method for pre-embedding a sliding anchor plate on the insulating plate of a liquefied argon thin-film tank, characterized in that, An embedded assembly structure for a sliding anchor plate of an insulating plate for a liquefied argon film tank. The embedded assembly structure includes an insulating composite plate, which comprises a reinforced foam board, an upper plywood, and a lower plywood. The upper and lower plywoods are respectively bonded to the top and bottom of the reinforced foam board. The upper plywood has several anchor plate holes, which form anchor plate grooves with the reinforced foam board. A sliding anchor plate is embedded in the anchor plate groove. The characteristic feature is that an overflow groove is formed on the back of the upper plywood around the anchor plate holes. The overflow groove is used to resist and collect the overflow glue when the reinforced foam board and the upper plywood are pressed together. The overflow groove is an annular groove structure. The pre-embedded method includes the following steps: S1: First, design and manufacture the glue-blocking tooling according to the structure and size of the anchor plate hole and the glue overflow groove; S2: Place the plywood with the back side facing up under the glue application equipment, and fit the glue-blocking fixture onto the anchor plate hole so that the glue-blocking fixture can cover the anchor plate hole and the glue overflow groove. S3: Start the glue application equipment to apply glue to the back of the plywood to form a glue strip; S4: After the glue application is completed, remove the glue-blocking fixture, fit the sliding anchor plate into the anchor plate hole, and then press the front of the reinforced foam board down onto the back of the upper plywood. S5: During the pressing process of the reinforced foam board and the upper plywood, the overflowing glue flows into the glue overflow groove, and the inner ring of the glue overflow groove prevents the glue from entering the anchor plate groove. S6: Start the glue-applying equipment to apply glue to the back of the reinforced foam board to form a glue strip; S7: Press the front side of the plywood down onto the back side of the reinforced foam board; S8: Transfer the entire composite board into the press for pressing, ensuring that the adhesive cures under pressure, and complete the pre-embedded installation of the sliding anchor plate on the insulating composite board; In step S1, the adhesive blocking fixture includes a positioning part and an adhesive blocking part. The positioning part is located at the bottom of the adhesive blocking part and matches the anchor plate hole. The adhesive blocking part is used to cover the anchor plate hole and the adhesive overflow groove.

2. The method for pre-embedding a sliding anchor plate for an insulating plate of a liquefied argon film tank according to claim 1, characterized in that, The overflow groove and the anchoring disc hole are coaxial.

3. The method for pre-embedding a sliding anchor plate for an insulating plate of a liquefied argon film tank according to claim 2, characterized in that, The width of the overflow groove is 5-6mm and the depth is 3-5mm.

4. The method for pre-embedding a sliding anchor plate for an insulating plate of a liquefied argon film tank according to claim 2, characterized in that, The circumference of the overflow groove is 3-4 mm.

5. The method for pre-embedding a sliding anchor plate for an insulating plate of a liquefied argon film tank according to claim 1, characterized in that, The positioning part and the adhesive-blocking part are coaxial circular structures, and the adhesive-blocking part is provided with an operating handle.

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