Connecting structure of corrugated plate and insulating assembly and film storage tank

Abstract

The invention provides a connecting structure of a corrugated plate and an insulating assembly and a film storage tank, and belongs to the technical field of low-temperature storage tanks. The connection structure comprises a clamping groove which is arranged on the insulation assembly; and the connecting piece is arranged on the corrugated plate, and the connecting piece can be clamped in the clamping groove so as to connect the corrugated plate and the insulating assembly. Compared with a traditional connecting mechanism, the connecting structure has the advantages that the field welding workload is reduced, and the field construction period is shortened.

Description

Technical Field

[0001] The invention belongs to the technical field of low-temperature storage tanks, and in particular relates to a connection structure of a corrugated plate and an insulating component and a film storage tank. Background Art

[0002] At present, the structure of membrane storage tanks from outside to inside includes: prestressed concrete outer tank, moisture-proof layer, insulation system, membrane inner tank. Among them, the insulation system includes mastic, plywood, polyurethane, and secondary shielding (below TCP height is a double-layer insulation system, including one layer of mastic, two layers of plywood, two layers of polyurethane, and one layer of shielding; above TCP height is a single-layer insulation system, which reduces one layer of polyurethane and one layer of shielding). The membrane corrugated sheet is fixed to the metal anchor strip or anchor plate on the plywood by welding, so as to achieve the effect of transferring force to the rear insulation layer.

[0003] Compared with traditional materials such as 9% Ni steel, the film inner tank has higher process requirements and precision. The thickness of the corrugated plate is small, and deformation problems such as wave deformation and angle deformation are prone to occur during the welding process, which in turn affects the geometric size and shape accuracy of the storage tank. Summary of the invention

[0004] In view of the above problems existing in the prior art, the purpose of the embodiments of the present invention is to provide a connection structure of a corrugated plate and an insulation assembly and a membrane storage tank. Compared with the traditional connection mechanism, the connection structure reduces the workload of on-site welding, reduces the deformation of the corrugated plate, and saves the on-site construction period.

[0005] The technical solution adopted in the embodiment of the present invention is:

[0006] A connection structure for a corrugated plate and an insulation assembly on a membrane storage tank, the connection structure comprising:

[0007] A card slot, provided on the insulating component;

[0008] A connecting piece is arranged on the corrugated plate, and the connecting piece can be clamped in the clamping groove to connect the corrugated plate and the insulating component.

[0009] Furthermore, the slot includes a first straight slot section and a second straight slot section connected to each other, the free end of the first straight slot section penetrates the surface of the insulating component, and the free end of the second straight slot section extends to the interior of the insulating component;

[0010] The angle between the first straight slot section and the second straight slot section is less than 180 degrees. Further, the angle between the first straight slot section and the second straight slot section is 90 degrees.

[0011] Furthermore, the length of the first straight groove section and the length of the second straight groove section are both between 30 mm and 100 mm, and the thickness of the connecting piece is between 0.5 mm and 15 mm.

[0012] Furthermore, the connecting member is a C-shaped member, the first side plate of the connecting member is connected to the corrugated plate, the second side plate of the connecting member is clamped in the second straight groove section, and the bottom plate of the connecting member is clamped in the first straight groove section.

[0013] Furthermore, the connecting member is an H-shaped member, the first transverse plate of the connecting member is welded to the corrugated plate, the vertical plate of the connecting member is clamped in the first straight groove section, and the second transverse plate of the connecting member is clamped in the second straight groove section.

[0014] Furthermore, at least one connecting member is connected to each corner of the corrugated plate.

[0015] Furthermore, the connecting piece is welded on the corrugated plate.

[0016] Furthermore, a layer of the corrugated plate facing the insulating assembly has a flat area and a recessed area, and the connecting piece is welded on the flat area.

[0017] A membrane storage tank comprises a connection structure of a corrugated plate and an insulating component as described in any one of the above embodiments.

[0018] Compared with the prior art, the beneficial effects of the embodiments of the present invention are:

[0019] The connection structure of the corrugated plate and the insulating component of the present invention connects the two by clamping the connecting piece fixed on the corrugated plate in the groove provided on the insulating component, thereby replacing the traditional welding fixing method of the corrugated plate and the anchor strip provided on the insulating component, thereby minimizing the welding amount, avoiding stress concentration and heat damage generated during the welding process, ensuring the overall performance of the corrugated plate, and thus significantly improving its service life and reliability.

[0020] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention.

[0021] This summary of various implementations or examples of the technology described in this disclosure is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar components in different views. The drawings generally illustrate various embodiments by way of example and not limitation, and together with the description and claims, serve to illustrate the embodiments of the invention. Where appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts.

[0023] Figure 1 A schematic diagram of the three-dimensional structure of a corrugated plate according to an embodiment of the present invention;

[0024] Figure 2 A front view of a corrugated plate according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic structural diagram of a connecting piece according to a first embodiment of the present invention;

[0026] Figure 4 This is a schematic structural diagram of a connecting piece according to a second embodiment of the present invention;

[0027] Figure 5 A front view of an insulating assembly according to an embodiment of the present invention;

[0028] Figure 6 is a side view of an insulating assembly according to an embodiment of the present invention;

[0029] Figure 7 The invention discloses a connection structure between a corrugated plate and an insulating assembly according to an embodiment of the invention.

[0030] In the figure: 1, corrugated plate; 11, flat area; 12, recessed area; 2, connecting piece; 21, first side plate; 22, second side plate; 23, bottom plate; 24, first horizontal plate; 25, second horizontal plate; 26, vertical plate; 3, insulating assembly; 31, plywood; 32, insulating layer; 4, slot; 41, first straight slot section; 42, second straight slot section. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0033] In order to keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and well-known components are omitted.

[0034] like Figure 1 , Figure 6 and Figure 7 As shown, an embodiment of the present invention provides a connection structure between a corrugated plate and an insulating assembly on a membrane storage tank, and the connection structure mainly includes a clamping groove 4 and a connecting member 2. The clamping groove 4 is provided on the insulating assembly 3, and the connecting member 2 is provided on the corrugated plate 1. The corrugated plate 1 can be clamped in the clamping groove 4 on the insulating assembly 3 through the connecting member 2 thereon, thereby realizing the connection between the corrugated plate 1 and the insulating assembly 3.

[0035] When installing the corrugated plate 1, the installation position line on the insulating component 3 can be marked in advance by using a tool, so as to align the connector 2 with the pre-opened groove on the insulating component 3. During installation, multiple people can cooperate, align the connector 2 with the slot 4 of the thermal insulation component, press it into the slot 4 and slide it down to the bottom of the slot 4. During installation, care should be taken not to scratch the corrugated plate 1. After the connector 2 is inserted into the slot 4, it is necessary to ensure that the corrugated plate 1 has no bulges or other deformations that affect the size.

[0036] The connection structure of the corrugated plate 1 and the insulating assembly 3 of the present embodiment replaces the traditional welding fixing method of the corrugated plate 1 and the anchor strip arranged on the insulating assembly 3 by clamping the connecting piece 2 fixed on the corrugated plate 1 into the clamping groove 4 arranged on the insulating assembly 3 to connect the two. Therefore, the amount of on-site welding is minimized, the construction efficiency is improved, and the stress concentration and heat damage generated during the welding process are avoided, the deformation of the corrugated plate 1 is reduced, and the overall performance of the corrugated plate 1 is ensured, thereby significantly improving its service life and reliability.

[0037] At the same time, the connection between the corrugated plate 1 and the insulating assembly 3 is also improved, thereby further improving the structural integrity and the rationality of force.

[0038] This connection structure is not limited to membrane storage tanks, but can also be applied to liquid cargo tanks such as LNG carriers and FLNG. Its size and installation sequence need to be adjusted according to the situation of the liquid cargo tank.

[0039] like Figure 5 and Figure 6 As shown, in some embodiments, the slot 4 can be formed on the insulating component 3, such as directly slotting the insulating component 3, and completed before connecting with the corrugated plate 1, and cleaned with a vacuum cleaner before installation. The slot 4 is located on the side surface of the insulating component 3 facing the corrugated plate 1.

[0040] The slot 4 includes a first straight slot section 41 and a second straight slot section 42 connected to each other. The free end of the first straight slot section 41 penetrates the surface of the insulating component 3 facing the corrugated plate 1 and forms a slot of the slot 4, and the free end of the second straight slot section 42 extends to the inside of the insulating component 3, and the angle between the first straight slot section 41 and the second straight slot section 42 is less than 180 degrees.

[0041] The connector 2 includes a first clamping section opposite to the first straight slot section 41 and a second clamping section opposite to the second straight slot section 42. The first clamping section is used to clamp the first straight slot section 41, and the second clamping section is used to clamp the second straight slot section 42. This structure can ensure the stability of the connector 2 clamped in the clamping slot 4, and prevent the connector 2 from easily falling out of the clamping slot 4.

[0042] Preferably, the angle between the first straight slot section 41 and the second straight slot section 42 is 90 degrees.

[0043] like Figure 3 As shown, in some embodiments, the connecting member 2 may be a C-shaped member, and the connecting member 2 includes a first side plate 21, a second side plate 22, and a bottom plate 23 respectively connecting the first side plate 21 and the second side plate 22.

[0044] The first side plate 21 of the connecting member 2 is connected to the corrugated plate 1, the second side plate 22 of the connecting member 2 is clamped in the second straight groove section 42 in the clamping groove 4, and the bottom plate 23 of the connecting member 2 is clamped in the first straight groove section 41 in the clamping groove 4. That is, the corresponding clamping groove 4 is L-shaped.

[0045] like Figure 4 As shown, in some embodiments, the connecting member 2 may be an H-shaped member, and the connecting member 2 includes a first transverse plate 24 , a second transverse plate 25 , and a vertical plate 26 connecting the first transverse plate 24 and the second transverse plate 25 .

[0046] The first horizontal plate 24 of the connecting member 2 is connected to the corrugated plate 1, the vertical plate 26 of the connecting member 2 is clamped in the first straight groove section 41, and the second horizontal plate 25 of the connecting member 2 is clamped in the second straight groove section 42. That is, the corresponding clamping groove 4 is T-shaped.

[0047] Of course, the shape of the connector 2 is not limited to a C-shaped part or an H-shaped part, and other shapes may also be adopted. Correspondingly, the shape of the slot 4 on the insulating component 3 changes with the shape of the connector 2.

[0048] When the connecting member 2 is a C-shaped member structure or an H-shaped member structure, the length of the first straight groove section 41 and the length of the second straight groove section 42 may both be between 30 mm and 100 mm.

[0049] As for the material of the connecting member 2, metal materials such as stainless steel plate, invar steel plate, 9% Ni steel plate, aluminum alloy plate, etc. that can withstand the corresponding low temperature environment and can be welded with the corrugated plate 1 can be used, with a thickness of 0.5mm-15mm.

[0050] like Figure 1 and Figure 2 As shown, in some embodiments, at least one connector 2 is connected to each corner of the corrugated plate 1 , and each corner of the corrugated plate 1 is connected to the insulating assembly 3 via a connector 2 , thereby ensuring the stability of the installation of the corrugated plate 1 .

[0051] Since multiple corrugated plates 1 are arranged around the outer peripheral wall of the storage tank, there will be a front-to-back stacking area of ​​the multiple corrugated plates 1 during installation. Therefore, the position of the connector 2 at each corner of each corrugated plate 1 should avoid the area where the adjacent corrugated plates 1 overlap.

[0052] In addition, after the installation of the corrugated plate 1 is completed, the overlapping positions need to be welded, which can be carried out by automatic welding + manual welding. After welding is completed, the wall and bottom need to be tested for tightness to ensure the liquid tightness of the film inner tank.

[0053] Of course, in some other embodiments, both side edges of each corrugated plate 1 may also be connected to at least two connecting members 2 .

[0054] In some embodiments, the connector 2 can be directly welded to the corrugated plate 1 to ensure the stability of the connection between the two. For example, when the connector 2 is a C-shaped member, the first side plate 21 can be directly welded to the corrugated plate 1; when the connector 2 is an H-shaped member, the first cross plate 24 can be directly welded to the corrugated plate 1. The welding process can be prefabricated in the factory or completed on-site.

[0055] like Figure 1 As shown, a layer of the corrugated plate 1 facing the insulating assembly 3 of this embodiment has a flat area 11 and a recessed area 12 , and the connector 2 can be welded on the flat area 11 of the corrugated plate 1 , thereby facilitating the connection between the corrugated plate 1 and the connector 2 .

[0056] like Figure 5 and Figure 6 As shown, in some embodiments, the insulating assembly 3 includes an insulating layer 32 and a plywood 31 disposed on the insulating layer 32 , and the card slot 4 can be directly processed on the plywood 31 and the insulating layer 32 .

[0057] Of course, in some other embodiments, the insulation component 3 may also adopt a prefabricated insulation box structure to wrap the bottom and sides of the entire storage tank.

[0058] The insulating box includes upper and lower support plates, an inner support plate (if any), cold-insulating materials, etc., and can also be used for installing and fixing the corrugated plate 1 by pre-grooving the upper support plate.

[0059] The embodiment of the present invention further provides a membrane storage tank, which may be an LNG storage tank for storing liquefied natural gas (LNG). The membrane storage tank includes a connection structure for a corrugated plate 1 and an insulating assembly 3 on a membrane storage tank as described in any of the above embodiments.

[0060] The above description is intended to be illustrative rather than limiting, and those skilled in the art may make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure. Moreover, the above examples (or one or more of them) may be used in combination with each other, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations.

Claims

1. A connection structure of a corrugated plate and an insulating component, used for a membrane storage tank, characterized in that: The connection structure comprises: A card slot, provided on the insulating component; A connecting piece is arranged on the corrugated plate, and the connecting piece can be clamped in the clamping groove to connect the corrugated plate and the insulating component.

2. A connection structure of a corrugated plate and an insulating component as claimed in claim 1, characterized in that: The slot comprises a first straight slot section and a second straight slot section connected to each other, the free end of the first straight slot section penetrates the surface of the insulating component, and the free end of the second straight slot section extends to the interior of the insulating component; An included angle between the first straight slot section and the second straight slot section is less than 180 degrees.

3. A connection structure of a corrugated plate and an insulating component as claimed in claim 2, characterized in that: The angle between the first straight slot section and the second straight slot section is 90 degrees.

4. A connection structure of a corrugated plate and an insulating component as claimed in claim 2, characterized in that: The length of the first straight groove section and the length of the second straight groove section are both between 30 mm and 100 mm, and the thickness of the connecting piece is between 0.5 mm and 15 mm.

5. The connection structure of a corrugated plate and an insulating component according to claim 2, characterized in that: The connecting member is a C-shaped member, the first side plate of the connecting member is connected to the corrugated plate, the second side plate of the connecting member is clamped in the second straight groove section, and the bottom plate of the connecting member is clamped in the first straight groove section.

6. The connection structure of a corrugated plate and an insulating component according to claim 2, characterized in that: The connecting member is an H-shaped member, the first transverse plate of the connecting member is welded to the corrugated plate, the vertical plate of the connecting member is clamped in the first straight groove section, and the second transverse plate of the connecting member is clamped in the second straight groove section.

7. The connection structure of a corrugated plate and an insulating component according to claim 1, characterized in that: At least one connecting piece is connected to each corner of the corrugated plate.

8. The connection structure of a corrugated plate and an insulating component according to claim 1, characterized in that: The connecting piece is welded on the corrugated plate.

9. A connection structure of a corrugated plate and an insulating component as claimed in claim 8, characterized in that: A layer of the corrugated plate facing the insulation assembly has a flat area and a recessed area, and the connecting piece is welded on the flat area.

10. A membrane storage tank, characterized in that: The invention comprises a connection structure of a corrugated plate and an insulation component as described in claims 1 to 9.

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