Pre-embedding assembly structure and pre-embedding method for sliding anchoring disc of insulating plate of liquefied argon thin-film tank

Abstract

The invention discloses a pre-embedded assembly structure and a pre-embedded method for a sliding anchoring disc of an insulating plate of a liquefied argon thin film tank, the structure comprises an insulating composite plate, the insulating composite plate comprises a reinforced foam plate, an upper plywood and a lower plywood, the upper plywood and the lower plywood are respectively adhered to the top and the bottom of the reinforced foam plate, and the reinforced foam plate is fixed on the upper plywood and the lower plywood. A plurality of anchoring disc holes are formed in the upper plywood, anchoring disc grooves are formed by the anchoring disc holes and the reinforced foam board, sliding anchoring discs are pre-buried in the anchoring disc grooves, and glue overflowing grooves are formed in the back face of the upper plywood around the anchoring disc holes. And the glue overflowing groove is used for resisting and collecting overflowing glue when the reinforced foam board and the upper plywood are pressed down and adhered. On the basis that the adhesion effect of the reinforced foam board and the upper plywood is guaranteed, overflowing glue is prevented from entering the anchoring disc groove, the embedding effect of the sliding anchoring disc is guaranteed, and the forming quality of the liquefied argon thin film tank insulating board can be improved.

Description

Technical Field

[0001] The invention relates to a liquefied argon gas membrane tank preparation technology, and in particular to a pre-embedded assembly structure and a pre-embedded method for a sliding anchor plate of an insulation plate of a liquefied argon gas membrane tank. Background Art

[0002] Liquefied argon membrane tanks are low-pressure large storage tanks, and their internal temperature is lower than that of liquefied natural gas. There are many membrane tank insulation panels in the liquefied argon membrane tank. The bottom and top of the panels are reinforced by foam bonding plywood, and accessories are installed on the plywood. Figure 1 and Figure 2 As shown, the film tank insulation board includes a reinforced foam board 1, an upper plywood 2 and a lower plywood arranged on the front and back sides of the reinforced foam board 1, a plurality of anchor plate grooves 5 are opened on the upper plywood 2, and a sliding anchor plate 3 is installed in the anchor plate groove 5. The sliding anchor plate 3 is movably arranged in the anchor plate groove 5, and there needs to be an all-round gap space between the sliding anchor plate 3 and the anchor plate groove 5, that is, when the sliding anchor plate 3 is located at the center of the anchor plate groove 5, the sliding anchor plate 3 can slide in any direction in the anchor plate groove 5 within a certain gap range.

[0003] The main design of this area is that the stainless steel film is welded on the anchor plate. Considering that the main film in this area is around a specific device, its shape cannot be too corrugated, resulting in insufficient extension of the main film. The state of the main film at a cold state of nearly -186°C is different from that at room temperature. It is necessary to consider that the main film can slide around to compensate for the lack of extension of the main film. Therefore, multiple sliding anchor plates 3 are used to fix the specific main film.

[0004] The above-mentioned sliding anchor plate 3 must be pre-buried in the anchor plate groove 5 and made into a sliding type. It cannot be anchored on 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 fixed by glue spraying, pressing, curing and bonding, the glue uses low-temperature resistant polyurethane glue, which will foam and expand during the curing process, and the bonding surface must ensure 100% adhesion. All bonding surfaces will have glue squeezed out around them under the pressing of the press, and the extruded glue will expand, resulting in the space around the sliding anchor plate 3 being occupied or directly adhering to the sliding anchor plate 3, resulting in insufficient sliding space. If the overflow glue exceeds 0.75mm, the sliding distance of the sliding anchor plate 3 will be insufficient or it will be adhered and unable to move. These do not meet the design requirements and the requirements are very harsh.

[0005] How to ensure that glue cannot be squeezed out around the sliding anchor plate 3 while ensuring appropriate strength is a very difficult problem. On this issue, the existing method is to not spray glue around the sliding anchor plate 3, and use a round cardboard to block it when spraying glue. After spraying, remove the cardboard and put the sliding anchor plate 3 into the pre-made plywood hole. The problem with this method is that the width of the non-sprayed glue is difficult to guarantee. Due to the different viscosity of the glue and the flatness of the foam board, there is a great deal of uncertainty. There is a possibility of extrusion or no glue is squeezed from the non-sprayed glue area, resulting in a large area of ​​no adhesion in the non-sprayed glue area. Both reasons will affect the quality, making it difficult to guarantee the quality of the existing liquefied argon film tank insulation board. Summary of the invention

[0006] Purpose of the invention: In order to overcome the deficiencies in the prior art, a pre-embedded assembly structure and pre-embedded method for a sliding anchor plate of an insulation plate of a liquefied argon gas membrane tank is provided, which can prevent the overflow of glue from entering the anchor plate groove while ensuring the adhesion effect of the reinforced foam plate and the upper plywood, thereby ensuring the pre-embedded effect of the sliding anchor plate and improving the molding quality of the insulation plate of the liquefied argon gas membrane tank.

[0007] Technical solution: To achieve the above-mentioned purpose, the present invention provides a pre-embedded assembly structure of a sliding anchor plate of an insulation plate of a liquefied argon gas membrane tank, comprising an insulating composite plate, wherein the insulating composite plate comprises a reinforced foam plate, an upper plywood and a lower plywood, wherein the upper plywood and the lower plywood are respectively adhered to the top and the bottom of the reinforced foam plate, and a plurality of anchor plate holes are provided on the upper plywood, wherein the anchor plate holes and the reinforced foam plate form anchor plate grooves, wherein a sliding anchor plate is pre-embedded in the anchor plate groove, and an overflow glue groove is provided on the back side of the upper plywood around the anchor plate holes, wherein the overflow glue groove is used to resist and collect overflowed glue when the reinforced foam plate and the upper plywood are pressed down and adhered.

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

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

[0010] Furthermore, the width of the overflow glue groove is 5-6 mm, and the depth is 3-5 mm. This width and depth size range is obtained after numerous experiments, so that the overflow glue groove can just meet the requirements of accommodating overflowed glue, and the adhesion effect will not be affected due to the excessive size of the overflow glue groove.

[0011] Furthermore, the inner ring of the overflow glue groove has a ring width of 3 to 4 mm. This ring width design enables the inner ring of the overflow glue groove to have a better glue blocking effect, and the overflowed glue can be completely blocked in the overflow glue groove and will not enter the anchor plate groove. The glue in the overflow glue groove will adhere to the enhanced foam board, thereby improving the structural connection strength to a certain extent, and the 3 to 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 pre-embedded method for a sliding anchor plate of an insulating plate of a liquefied argon gas membrane 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 upper plywood with the back side facing upwards under the glue spraying equipment, and fit the glue blocking tooling piece on the anchor plate hole so that the glue blocking tooling piece can cover the anchor plate hole and the glue overflow groove;

[0015] S3: Start the glue spraying equipment to spray glue on the back of the upper plywood to form a glue strip;

[0016] S4: After the glue is applied, take out the glue blocking tooling, fit the sliding anchor plate on the anchor plate hole, and then press the front side of the enhanced foam board downward on the back side of the upper plywood;

[0017] S5: During the lamination process of the enhanced foam board and the upper plywood, the overflowed glue flows into the overflow groove, and the inner ring of the overflow groove prevents the glue from entering the anchor plate groove;

[0018] S6: Start the glue spraying equipment to spray glue on the back of the enhanced foam board to form a glue strip;

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

[0020] S8: Transfer the entire composite panel to a press for pressing, ensure that the glue is cured under pressure, and complete the embedded installation of the sliding anchor plate on the insulating composite panel.

[0021] Furthermore, in step S1, the glue blocking tooling comprises a positioning portion and a glue blocking portion, wherein the positioning portion is arranged at the bottom of the glue blocking portion, the positioning portion matches the anchoring disc hole, and the glue blocking portion is used to cover the anchoring disc hole and the glue overflow groove.

[0022] Furthermore, the positioning portion and the rubber blocking portion are coaxial circular structures, and an operating handle is provided on the positioning portion to facilitate the operation of the rubber blocking tooling.

[0023] Beneficial effects: Compared with the prior art, the design of the glue overflow groove of the present invention can resist and collect the overflowed glue between the reinforced foam board and the upper plywood, and completely prevent the overflowed glue from entering the anchor plate groove. In addition, a special glue blocking tooling is designed, which can realize the pre-embedding of the sliding anchor plate on the basis of ensuring the adhesion effect of the reinforced foam board and the upper plywood, thereby improving the pre-embedding effect of the sliding anchor plate, ensuring the use effect of the sliding anchor plate, and being able to improve the molding quality of the insulation plate of the liquefied argon film tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front structural diagram of the upper plywood in the existing film tank insulation board;

[0025] Figure 2 This is a pre-embedded structural diagram of a sliding anchor plate in an existing membrane tank insulation board;

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

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

[0028] Figure 5 It is the structural diagram of the rubber retaining tooling;

[0029] Figure 6 This is a schematic diagram of the use of the glue retaining tooling. DETAILED DESCRIPTION

[0030] The present invention is further explained below in conjunction with 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, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0031] Combination Figure 1 to Figure 4As shown, the present invention provides a pre-embedded assembly structure of a sliding anchor plate of an insulating plate of a liquefied argon gas membrane tank, comprising an insulating composite plate, the insulating composite plate comprising an enhanced foam plate 1, an upper plywood 2 and a lower plywood 9, the upper plywood 2 and the lower plywood 3 are respectively adhered to the top and bottom of the enhanced foam plate 1, an anchor strip 6 is fixedly provided on the upper plywood 2, three anchor plate holes 21 are provided on the upper plywood 2, the anchor plate holes 21 and the enhanced foam plate 1 form an anchor plate groove 5, a sliding anchor plate 3 is pre-embedded in the anchor plate groove 5, an insulation board 4 is provided at the bottom of the sliding anchor plate 3, and a glue overflow groove 7 is provided on the back of the upper plywood 2 around the anchor plate hole 21, the glue overflow groove 7 is an annular groove structure and is coaxial with the anchor plate hole. In this embodiment, the width of the glue overflow groove 7 is 5 mm and the depth is 3 mm. The ring width of the inner ring of the glue overflow groove 7 is 3 mm. The overflow glue groove 7 is used to resist and collect overflow glue 8 when the enhanced foam board 1 and the upper plywood 2 are pressed downward and bonded.

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

[0033] S1: First, design and manufacture a glue blocking tooling part according to the structure and size of the anchor plate hole 21 and the glue overflow groove 7;

[0034] like Figure 5 As shown, the glue blocking tooling includes a positioning portion 12 and a glue blocking portion 11. The positioning portion 12 is arranged at the bottom of the glue blocking portion 11. The positioning portion 12 matches the anchor disk hole 21. The glue blocking portion 11 can just cover the anchor disk hole 21 and the glue overflow groove 7 at the same time. The positioning portion 12 and the glue blocking portion 11 are coaxial circular structures. An operating handle 13 is arranged on the positioning portion 12 to facilitate the operation of the glue blocking tooling.

[0035] S2: Place the upper plywood 2 with the back side facing upward under the glue spraying equipment, and fit the positioning portion 12 of the glue blocking tooling piece on the anchor plate hole 21 to achieve positioning, so that the glue blocking portion 11 of the glue blocking tooling piece can cover the anchor plate hole 21 and the glue overflow groove 7;

[0036] S3: Figure 6 As shown, the glue spraying equipment is started to spray glue on the back of the upper plywood 2 to form a glue strip. Due to the glue blocking effect of the glue blocking portion 11 of the glue blocking tooling, the glue strip just avoids the overflowing glue groove 7 and the inner ring area of ​​the overflowing glue groove 7;

[0037] S4: After the glue is applied, take out the glue blocking tooling, fit the sliding anchor plate 3 on the anchor plate hole 21, and then press the front side of the enhanced foam board 1 downward on the back side of the upper plywood 2;

[0038] S5: During the pressing process of the enhanced foam board 1 and the upper plywood 2, the overflowing glue 8 flows into the overflowing glue groove 7, and the inner ring of the overflowing glue groove 7 blocks the overflowing glue 8 from entering the anchor plate groove 5;

[0039] S6: starting the glue spraying device to spray glue on the back side of the enhanced foam board 1 to form a glue strip;

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

[0041] S8: The entire composite board is transferred to a press for pressing, ensuring that the glue is cured under pressure, and completing the embedded installation of the sliding anchor plate 3 on the insulating composite board.

[0042] In combination with the above-mentioned embedded assembly structure and embedded method, compared with the prior art, the design of the overflow glue groove 7 in the present invention can resist and collect the overflow glue 8 between the enhanced foam board 1 and the upper plywood 2, and completely prevent the overflow glue 8 from entering the anchor plate groove 5, and a special glue blocking tooling is designed, which can realize the embeddedness of the sliding anchor plate 3 on the basis of ensuring the adhesion effect of the enhanced foam board 1 and the upper plywood 2, thereby improving the embeddedness effect of the sliding anchor plate 3, ensuring the use effect of the sliding anchor plate 3, and can improve the molding quality of the insulation plate of the liquefied argon film tank.

Claims

1. A pre-embedded assembly structure of a sliding anchor plate of an insulation plate of a liquefied argon gas membrane tank, comprising an insulation composite plate, the insulation composite plate comprising an enhanced foam plate, an upper plywood and a lower plywood, the upper plywood and the lower plywood being respectively adhered to the top and the bottom of the enhanced foam plate, the upper plywood being provided with a plurality of anchor plate holes, the anchor plate holes and the enhanced foam plate forming an anchor plate groove, a sliding anchor plate being pre-embedded in the anchor plate groove, characterized in that: An overflowing glue groove is provided on the back side of the upper plywood around the anchoring disc hole, and the overflowing glue groove is used to resist and collect overflowing glue when the enhanced foam board and the upper plywood are pressed downward and bonded.

2. The embedded assembly structure of the sliding anchor plate of the insulation plate of the liquefied argon membrane tank according to claim 1 is characterized in that: The glue overflow groove is an annular groove structure.

3. The embedded assembly structure of the sliding anchor plate of the insulation plate of the liquefied argon membrane tank according to claim 2 is characterized in that: The glue overflow groove and the anchoring disc hole are coaxial structures.

4. The embedded assembly structure of the sliding anchor plate of the insulation plate of the liquefied argon gas membrane tank according to claim 3 is characterized in that: The width of the overflow groove is 5-6 mm, and the depth is 3-5 mm.

5. The embedded assembly structure of the sliding anchor plate of the insulation plate of the liquefied argon membrane tank according to claim 3 is characterized in that: The inner ring width of the overflow groove is 3-4 mm.

6. A method for pre-embedding a sliding anchor plate of an insulation plate of a liquefied argon membrane tank, characterized in that: The steps include: 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 upper plywood with the back side facing upwards under the glue spraying equipment, and fit the glue blocking tooling piece on the anchor plate hole so that the glue blocking tooling piece can cover the anchor plate hole and the glue overflow groove; S3: Start the glue spraying equipment to spray glue on the back of the upper plywood to form a glue strip; S4: After the glue is applied, take out the glue blocking tooling, fit the sliding anchor plate on the anchor plate hole, and then press the front side of the enhanced foam board downward on the back side of the upper plywood; S5: During the lamination process of the enhanced foam board and the upper plywood, the overflowed glue flows into the overflow groove, and the inner ring of the overflow groove prevents the glue from entering the anchor plate groove; S6: Start the glue spraying equipment to spray glue on the back of the enhanced foam board to form a glue strip; S7: Press the front side of the lower plywood down onto the back side of the reinforced foam board; S8: Transfer the entire composite panel to a press for pressing, ensure that the glue is cured under pressure, and complete the embedded installation of the sliding anchor plate on the insulating composite panel.

7. The method for pre-embedding a sliding anchor plate of an insulation plate of a liquefied argon gas membrane tank according to claim 6, characterized in that: In step S1, the glue blocking tooling comprises a positioning portion and a glue blocking portion, wherein the positioning portion is arranged at the bottom of the glue blocking portion, the positioning portion matches the anchoring disc hole, and the glue blocking portion is used to cover the anchoring disc hole and the glue overflow groove.

8. The method for pre-embedding a sliding anchor plate of an insulation plate of a liquefied argon gas membrane tank according to claim 7, characterized in that: The positioning portion and the rubber blocking portion are coaxial circular structures, and an operating handle is provided on the positioning portion.

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