A processing mold and preparation method for a concrete sealed tank model of an underground gas storage reservoir

Abstract

The present invention discloses a processing mold and preparation method for a concrete sealed tank model of an underground gas storage reservoir, which relates to the field of underground gas storage technology and includes: an outer ring assembly, an inner ring assembly and a centering ring. The centering ring can ensure that the inner ring assembly and the outer ring assembly are arranged concentrically; the bottom of the concrete tank model is automatically leveled by the base, and the top is flush with the upper edge of the outer ring assembly, which can be naturally leveled by pouring. The inner and outer surfaces of the concrete tank model are formed by the inner and outer ring assemblies, and the overall flatness is good, which can improve the accuracy of the model. Both the inner and outer ring assemblies adopt a split structure, which is convenient for installation and demoulding. The installation structure of the inner ring assembly is arranged inside the inner ring assembly, and the installation structure of the outer ring assembly is arranged outside the outer ring assembly, which does not affect the molding of the concrete model; the inner ring assembly is provided with a lifting assembly, which can be used in conjunction with the lifting rod and the channel steel to facilitate the removal of the top cover of the inner ring assembly, thereby accelerating the demoulding efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of underground gas storage, and in particular to a processing mold and a preparation method of a concrete sealed tank model of an underground gas storage. Background Art

[0002] In underground gas storage, the sealing layer plays a vital role and the airtightness of the underground gas storage needs to be ensured.

[0003] A typical underground gas storage facility is constructed by excavating a subterranean space within a hard rock formation, constructing a concrete structure within it, and then applying a sealing layer within the concrete structure to create a high-pressure sealed underground gas storage facility. The surrounding rock and concrete structure bear the pressure of the compressed air, while the sealing layer provides a seal. Existing underground gas storage facilities use steel plates as sealing layers, which are difficult to construct and install, and are expensive. To research new sealing materials, creating concrete tank models is an effective way to test the airtightness of sealing materials.

[0004] However, the following deficiencies are common in the prior art for making concrete tank models:

[0005] 1. The concrete tank model is difficult to demould after forming.

[0006] 2. The concrete tank model is not concentric inside and outside, and the flatness of the tank top and bottom is poor, resulting in insufficient overall accuracy.

[0007] In view of this, how to provide a processing mold and processing method for a concrete tank model that is easy to demould and improves model accuracy is a problem that technical personnel in this field urgently need to solve. Summary of the Invention

[0008] The purpose of the present invention is to provide a processing mold and a preparation method for an underground gas storage concrete sealed tank model to solve the problems existing in the prior art.

[0009] To achieve the above-mentioned object, the present invention provides a processing mold for a concrete sealed tank model of an underground gas storage reservoir, comprising:

[0010] The outer ring assembly is a cylindrical structure with upper and lower openings;

[0011] The inner ring assembly is a cylindrical structure with a closed upper end and an open lower end. The inner ring assembly is concentrically arranged inside the outer ring assembly and the height of the inner ring assembly is smaller than that of the outer ring assembly. The lower ends of the outer ring assembly and the inner ring assembly are arranged on the base;

[0012] A centering ring defines a concentric annular cavity between the outer ring assembly and the inner ring assembly, the centering ring is adapted to the cross-sectional shape of the annular cavity, the centering ring is located in the annular cavity and is arranged on the base, and the inner and outer surfaces of the centering ring are respectively connected to the inner ring assembly and the outer ring assembly.

[0013] Furthermore, the outer ring assembly is surrounded by a plurality of first fan ring columns, and adjacent first fan ring columns are detachably connected. The first fan ring columns are arranged on the base, and the outer surface of the center ring is connected to the first fan ring columns.

[0014] Furthermore, it also includes:

[0015] A positioning plate is provided on the outer surface of the first fan ring column, wherein positioning pin holes are provided on the positioning plate, and the positioning pin holes between adjacent first fan ring columns correspond to each other and are inserted with positioning pins;

[0016] A first fixing plate is provided on the outer surface of the first fan ring column, wherein a plurality of first fixing holes are formed on the first fixing plate, and the first fixing holes between adjacent first fan ring columns correspond to each other one by one and are inserted with fixing bolts;

[0017] The reinforcing ribs are connected to the first fixing plate and the first fan ring column respectively.

[0018] Furthermore, the inner ring assembly is surrounded by multiple second fan ring columns, adjacent second fan ring columns are detachably connected, the upper ends of the multiple second fan ring columns are sealed with top covers, the second fan ring columns are set on the base, and the inner surface of the center ring is connected to the second fan ring columns.

[0019] Furthermore, it also includes:

[0020] A second fixing plate is provided on the inner surface of the second fan ring column, and a second fixing hole is formed on the second fixing plate;

[0021] The third fixing plate corresponds to the plurality of second fixing plates. The third fixing plate is provided with third fixing holes corresponding to the second fixing holes. Fastening pins are inserted into the second fixing holes and the third fixing holes.

[0022] Furthermore, the second fixing plate is provided with a first notch, and the third fixing plate is provided with a second notch. When the second fixing hole corresponds to the third fixing hole, the first notch corresponds to the second notch.

[0023] Furthermore, a first oblique groove is provided on the upper edge of the second fan ring column, and a second oblique groove is provided on the lower edge of the top cover, and the first oblique groove is adapted to the second oblique groove.

[0024] Furthermore, it also includes:

[0025] a lifting assembly, disposed on the lower surface of the top cover;

[0026] a channel steel having a length greater than an outer diameter of the outer ring assembly;

[0027] A lifting rod has one end connected to the channel steel by a thread, and the other end connected to the lifting assembly.

[0028] Furthermore, the lifting assembly includes:

[0029] a fixing block provided on the lower surface of the top cover, wherein the fixing block is provided with a connecting hole in the longitudinal direction and a first connecting pin hole in the transverse direction and communicating with the connecting hole;

[0030] One end of the lifting rod passes through the channel steel from bottom to top and is connected with a nut. The other end of the lifting rod is provided with a second connecting pin hole. The other end of the lifting rod is inserted into the connecting hole. The first connecting pin hole corresponds to the second connecting pin hole and the connecting pin is inserted.

[0031] The present invention also provides a method for preparing a processing mold for an underground gas storage concrete sealed tank model, which is used to prepare the processing mold for the underground gas storage concrete sealed tank model, comprising the following steps:

[0032] S1: Assemble the second fan ring columns together so that the first notch corresponds to the second notch and the second fixing hole corresponds to the third fixing hole; connect the second fixing plate to the third fixing plate by tightening the pins, and place the top cover on top of the second fan ring column to form the inner ring assembly;

[0033] S2: Splice the first fan ring columns together, align the positioning pin holes between adjacent first fan ring columns, insert positioning pins, and align the first fixing holes between adjacent first fan ring columns one by one and insert fixing bolts to form an outer ring assembly;

[0034] S3: Place the inner ring assembly on the base, install the center ring, and place the outer ring assembly on the base outside the center ring so that the inner and outer surfaces of the center ring are in contact with the inner ring assembly and the outer ring assembly respectively;

[0035] S4: pouring concrete between the inner ring assembly and the outer ring assembly until the concrete covers the top plate of the inner ring assembly and is flush with the upper edge of the outer ring assembly;

[0036] S5: After the concrete solidifies, a sealed tank model is formed, and the inner ring assembly, the outer ring assembly and the sealed tank model are inverted on the base;

[0037] S6: Arrange a channel steel on the outer ring assembly, thread one end of the lifting rod to the channel steel, insert the other end into the connecting hole, align the first connecting pin hole with the second connecting pin hole, insert the connecting pin, rotate the nut until the top cover is separated from the sealed tank model, and remove the second fan ring column;

[0038] S7: Remove the positioning pins and fixing bolts, remove the first fan ring column, and obtain the sealed tank model.

[0039] The present invention discloses the following technical effects:

[0040] 1. The concrete tank body consists of an inner ring assembly, an outer ring assembly, and a centering ring. The centering ring ensures the concentric arrangement of the inner and outer ring assemblies. The bottom of the concrete tank model is automatically leveled by the base, and the top is flush with the upper edge of the outer ring assembly, which can be naturally leveled by pouring. The inner and outer surfaces of the concrete tank model are formed by the inner and outer ring assemblies, resulting in good overall flatness and improving model accuracy.

[0041] 2. Both the inner and outer ring assemblies adopt a split structure, which is convenient for installation and demoulding. The installation structure of the inner ring assembly is set inside the inner ring assembly, and the installation structure of the outer ring assembly is set outside the outer ring assembly, which does not affect the forming of the concrete model; the inner ring assembly is provided with a lifting assembly, which can be used in conjunction with the lifting rod and channel steel to quickly remove the inner ring assembly, thereby accelerating the demoulding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0043] Figure 1 Schematic diagram of the outer ring assembly structure;

[0044] Figure 2 Schematic diagram of the first fan ring column structure;

[0045] Figure 3 Schematic diagram of the internal structure of the inner ring component;

[0046] Figure 4 Schematic diagram of the top cover structure;

[0047] Figure 5 This is a diagram for installing the fixed block;

[0048] Figure 6 Schematic diagram of the central ring structure;

[0049] Figure 7 It is a schematic diagram of the overall structure;

[0050] Figure 8 Schematic diagram of the coordination between the outer ring assembly and the inner ring assembly;

[0051] Figure 9Schematic diagram of demoulding;

[0052] Figure 10 This is a model diagram of a concrete tank;

[0053] Among them, 1. Outer ring assembly; 101. First fan ring column; 2. Inner ring assembly; 201. Second fan ring column; 202. Top cover; 3. Centering ring; 4. Base; 5. Positioning plate; 6. Positioning pin; 7. First fixing plate; 8. Fixing bolt; 9. Reinforcing rib; 10. Second fixing plate; 1001. First notch; 11. Third fixing plate; 1101. Second notch; 12. Fastening pin; 13. Channel steel; 14. Lifting rod; 15. Fixing block; 1501. Connecting hole; 1502. First connecting pin hole; 16. Connecting pin; 17. Nut. DETAILED DESCRIPTION

[0054] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0055] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0056] An embodiment of the present invention provides a processing mold for a concrete sealed tank model of an underground gas storage reservoir, comprising:

[0057] The outer ring assembly 1 is a cylindrical structure with upper and lower openings;

[0058] The inner ring assembly 2 is a cylindrical structure with a closed upper end and an open lower end. The inner ring assembly 2 is concentrically arranged inside the outer ring assembly 1 and the height of the inner ring assembly 2 is smaller than that of the outer ring assembly 1. The lower ends of the outer ring assembly 1 and the inner ring assembly 2 are arranged on the base 4;

[0059] A concentric annular cavity is defined between the centering ring 3, the outer ring assembly 1 and the inner ring assembly 2. The centering ring 3 is adapted to the cross-sectional shape of the annular cavity. The centering ring 3 is located in the annular cavity and is arranged on the base 4. The inner and outer surfaces of the centering ring 3 are respectively connected to the inner ring assembly 2 and the outer ring assembly 1.

[0060] In this embodiment, the outer ring assembly 1 is surrounded by multiple first fan ring columns 101, and adjacent first fan ring columns 101 are detachably connected. The first fan ring columns 101 are set on the base 4, and the outer surface of the center ring 3 is connected to the first fan ring columns 101.

[0061] In this embodiment, it also includes:

[0062] The positioning plate 5 is provided on the outer surface of the first fan ring column 101. The positioning plate 5 is provided with positioning pin holes. The positioning pin holes between adjacent first fan ring columns 101 correspond to each other and are inserted with positioning pins 6;

[0063] A first fixing plate 7 is provided on the outer surface of the first fan ring column 101. The first fixing plate 7 is provided with a plurality of first fixing holes. The first fixing holes between adjacent first fan ring columns 101 correspond to each other and are inserted with fixing bolts 8;

[0064] The reinforcing ribs 9 are connected to the first fixing plate 7 and the first fan ring column 101 respectively.

[0065] In this embodiment, the inner ring assembly 2 is surrounded by multiple second fan ring columns 201, and adjacent second fan ring columns 201 are detachably connected. The upper ends of the multiple second fan ring columns 201 are sealed with a top cover 202, and the upper surface of the top cover 202 has a certain curvature. The second fan ring columns 201 are set on the base 4, and the inner surface of the center ring 3 is connected to the second fan ring column 201.

[0066] In this embodiment, it also includes:

[0067] A second fixing plate 10 is provided on the inner surface of the second fan ring column 201, and a second fixing hole is opened on the second fixing plate 10;

[0068] The third fixing plate 11 corresponds to the plurality of second fixing plates 10 . The third fixing plate 11 is provided with third fixing holes corresponding to the second fixing holes. Fastening pins 12 are inserted into the second fixing holes and the third fixing holes.

[0069] In this embodiment, a first notch 1001 is provided on the second fixing plate 10 , and a second notch 1101 is provided on the third fixing plate 11 . When the second fixing hole corresponds to the third fixing hole, the first notch 1001 corresponds to the second notch 1101 .

[0070] In this embodiment, a first beveled groove is provided on the upper edge of the second sector ring column 201, and a second beveled groove is provided on the lower edge of the top cover 202. The first beveled groove and the second beveled groove are adapted to each other. The top cover 202 has a smooth, curved upper surface. The first beveled groove is upwardly convex on the inner side and downwardly concave on the outer side, while the second beveled groove is upwardly concave on the inner side and downwardly convex on the outer side. This allows the top cover 202 to be snapped onto the upper edge of the second sector ring column 201. To improve sealing, in some other embodiments, a sealing ring may be provided between the upper edge of the top cover 202 and the second sector ring column 201.

[0071] In this embodiment, it also includes:

[0072] A lifting assembly, disposed on the lower surface of the top cover 202;

[0073] The channel steel 13 has a length greater than the outer diameter of the outer ring assembly 1;

[0074] One end of the lifting rod 14 is threadedly connected to the channel steel 13, and the other end is connected to the lifting assembly.

[0075] In this embodiment, the lifting assembly includes:

[0076] The fixing block 15 is provided on the lower surface of the top cover 202. The fixing block 15 is provided with a connecting hole 1501 in the longitudinal direction and a first connecting pin hole 1502 in the transverse direction that communicates with the connecting hole 1501.

[0077] One end of the lifting rod 14 passes through the channel steel 13 from bottom to top and is connected with a nut 17. The other end of the lifting rod 14 is provided with a second connecting pin hole. The other end of the lifting rod 14 is inserted into the connecting hole 1501. The first connecting pin hole 1502 corresponds to the second connecting pin hole and the connecting pin 16 is inserted.

[0078] The present invention also provides a method for preparing a processing mold for an underground gas storage concrete sealed tank model, which is used to prepare the processing mold for the underground gas storage concrete sealed tank model, comprising the following steps:

[0079] S1: Assemble the second fan ring columns 201 together so that the first notch 1001 corresponds to the second notch 1101 and the second fixing hole corresponds to the third fixing hole; connect the second fixing plate 10 and the third fixing plate 11 by fastening the pins 12, and place the top cover 202 on top of the second fan ring columns 201 to form the inner ring assembly 2;

[0080] S2: Splice the first fan ring columns 101 together, align the positioning pin holes between adjacent first fan ring columns 101, insert the positioning pins 6, and align the first fixing holes between adjacent first fan ring columns 101 one by one and insert the fixing bolts 8 to form the outer ring assembly 1;

[0081] S3: Place the inner ring assembly 2 on the base 4, install the centering ring 3, and place the outer ring assembly 1 on the base 4 outside the centering ring 3 so that the inner and outer surfaces of the centering ring 3 are in contact with the inner ring assembly 2 and the outer ring assembly 1 respectively;

[0082] S4: pouring concrete between the inner ring assembly 2 and the outer ring assembly 1 until the concrete covers the top plate of the inner ring assembly 2 and is flush with the upper edge of the outer ring assembly 1;

[0083] S5: After the concrete solidifies, a sealed tank model is formed, and the inner ring assembly 2, the outer ring assembly 1 and the sealed tank model are inverted on the base 4;

[0084] S6: Arrange the channel steel 13 on the outer ring assembly 1, thread one end of the lifting rod 14 to the channel steel 13, and insert the other end into the connecting hole 1501. Make the first connecting pin hole 1502 correspond to the second connecting pin hole and insert the connecting pin 16. Rotate the nut 17 until the top cover 202 is separated from the sealed tank model, and remove the second fan ring column 201.

[0085] S7: Remove the positioning pin 6 and the fixing bolt 8, and remove the first fan ring column 101 to obtain the sealed tank model.

[0086] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0087] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A processing mold for a concrete sealed tank model of an underground gas storage reservoir, characterized in that: include: The outer ring assembly (1) is a cylindrical structure with upper and lower openings; The inner ring assembly (2) is a cylindrical structure with a closed upper end and an open lower end. The inner ring assembly (2) is concentrically arranged inside the outer ring assembly (1) and the height of the inner ring assembly (2) is smaller than the height of the outer ring assembly (1). The lower ends of the outer ring assembly (1) and the inner ring assembly (2) are arranged on a base (4); A centering ring (3) defines a concentric annular cavity between the outer ring assembly (1) and the inner ring assembly (2), the centering ring (3) is adapted to the cross-sectional shape of the annular cavity, the centering ring (3) is located in the annular cavity and is arranged on a base (4), and the inner and outer surfaces of the centering ring (3) are respectively connected to the inner ring assembly (2) and the outer ring assembly (1); the outer ring assembly (1) is surrounded by a plurality of first fan ring columns (101), and adjacent first fan ring columns (101) are detachably connected. The first fan ring column (101) is arranged on the base (4), and the outer surface of the center ring (3) is connected to the first fan ring column (101); the inner ring assembly (2) is surrounded by a plurality of second fan ring columns (201), and adjacent second fan ring columns (201) are detachably connected. The upper ends of the plurality of second fan ring columns (201) are sealed with a top cover (202), and the second fan ring columns (201) are arranged on the base (4), and the inner surface of the center ring (3) is connected to the second fan ring columns (201); A positioning plate (5) is provided on the outer surface of the first fan ring column (101), and positioning pin holes are provided on the positioning plate (5). The positioning pin holes between adjacent first fan ring columns (101) correspond to each other and are inserted with positioning pins (6); A first fixing plate (7) is arranged on the outer surface of the first fan ring column (101), and a plurality of first fixing holes are opened on the first fixing plate (7). The first fixing holes between adjacent first fan ring columns (101) correspond to each other one by one and are inserted with fixing bolts (8); Reinforced ribs (9) are respectively connected to the first fixing plate (7) and the first fan ring column (101); A second fixing plate (10) is arranged on the inner surface of the second fan ring column (201), and a second fixing hole is opened on the second fixing plate (10); A third fixing plate (11) corresponding to the plurality of second fixing plates (10), wherein the third fixing plate (11) is provided with a third fixing hole corresponding to the second fixing hole, and fastening pins (12) are inserted into the second fixing holes and the third fixing holes; The second fixing plate (10) is provided with a first notch (1001), and the third fixing plate (11) is provided with a second notch (1101); when the second fixing hole corresponds to the third fixing hole, the first notch (1001) corresponds to the second notch (1101); The upper edge of the second fan ring column (201) is provided with a first oblique groove, and the lower edge of the top cover (202) is provided with a second oblique groove, and the first oblique groove is adapted to the second oblique groove; Also includes: A lifting assembly, arranged on the lower surface of the top cover (202); A channel steel (13) having a length greater than the outer diameter of the outer ring assembly (1); A lifting rod (14), one end of which is threadedly connected to the channel steel (13) and the other end of which is connected to the lifting assembly; The lifting assembly comprises: A fixing block (15) is provided on the lower surface of the top cover (202), wherein the fixing block (15) is provided with a connecting hole (1501) in the longitudinal direction and a first connecting pin hole (1502) in the transverse direction and communicating with the connecting hole (1501); One end of the lifting rod (14) passes through the channel steel (13) from bottom to top and is connected to a nut (17), and the other end of the lifting rod (14) is provided with a second connecting pin hole, and the other end of the lifting rod (14) is inserted into the connecting hole (1501), and the first connecting pin hole (1502) corresponds to the second connecting pin hole and is inserted with a connecting pin (16).

2. A method for preparing a concrete sealed tank model of an underground gas storage reservoir, using the processing mold of the concrete sealed tank model of the underground gas storage reservoir according to claim 1, comprising the following steps: S1: Splice the second fan ring column (201) together so that the first notch (1001) corresponds to the second notch (1101), and the second fixing hole corresponds to the third fixing hole; connect the second fixing plate (10) and the third fixing plate (11) by fastening the pin (12), and place the top cover (202) on top of the second fan ring column (201) to form an inner ring assembly (2); S2: Splicing the first fan ring columns (101) together, making the positioning pin holes between adjacent first fan ring columns (101) correspond to each other and inserting the positioning pins (6), and making the first fixing holes between adjacent first fan ring columns (101) correspond to each other and inserting the fixing bolts (8), thereby forming an outer ring assembly (1); S3: placing the inner ring assembly (2) on the base (4), installing the centering ring (3), and placing the outer ring assembly (1) on the base (4) outside the centering ring (3), so that the inner and outer surfaces of the centering ring (3) are in contact with the inner ring assembly (2) and the outer ring assembly (1), respectively; S4: pouring concrete between the inner ring assembly (2) and the outer ring assembly (1) until the concrete covers the top plate of the inner ring assembly (2) and is flush with the upper edge of the outer ring assembly (1); S5: After the concrete solidifies, a sealed tank model is formed, and the inner ring assembly (2), the outer ring assembly (1) and the sealed tank model are inverted on the base (4); S6: Arrange the channel steel (13) on the outer ring assembly (1), thread one end of the lifting rod (14) to the channel steel (13), insert the other end into the connecting hole (1501), make the first connecting pin hole (1502) correspond to the second connecting pin hole and insert the connecting pin (16), rotate the nut (17) until the top cover (202) is separated from the sealed tank model, and remove the second fan ring column (201); S7: Remove the positioning pin (6) and the fixing bolt (8), remove the first fan ring column (101), and obtain the sealed tank model.

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