Processing mold and preparation method of concrete sealing tank model of underground gas storage

Abstract

The invention discloses a processing mold and a preparation method of an underground gas storage concrete sealing tank model, and relates to the technical field of underground gas storage, and the processing mold comprises 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 concentrically arranged; the bottom of the concrete tank body model is automatically leveled through the base, the top of the concrete tank body model is flush with the upper edge of the outer ring assembly and can be naturally leveled through pouring, the inner surface and the outer surface of the concrete tank body model are formed through the inner ring assembly and the outer ring assembly, the overall flatness is good, and the model precision can be improved. The inner ring assembly and the outer ring assembly are both of a split structure, installation and demolding are convenient, the installation structure of the inner ring assembly is arranged inside the inner ring assembly, the installation structure of the outer ring assembly is arranged outside the outer ring assembly, and forming of a concrete model is not affected. And the inner ring assembly is provided with the lifting assembly which is matched with the lifting rod and the channel steel, so that the top cover of the inner ring assembly can be conveniently removed, and the demolding efficiency is improved.

Description

Technical Field

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

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

[0003] A common underground gas storage is to excavate an underground space in hard underground rock layers, construct a concrete structure on the inner side, and lay a sealing layer inside the concrete structure to form a high-pressure sealed underground gas storage. The surrounding rock and the concrete structure are used to bear the pressure of compressed air, and the sealing layer plays a sealing role. The existing sealing layer used in underground gas storage is a steel plate, which is difficult to construct and install and has a high cost. In order to study new sealing materials, making a concrete tank model with concrete is an effective method to test the airtightness of the sealing material.

[0004] However, the following deficiencies generally exist in making concrete tank models in the prior art:

[0005] 1. It is difficult to demold the concrete tank model after it is formed.

[0006] 2. The inner and outer parts of the concrete tank model are not concentric, and the flatness of the tank top and tank 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 demold and improves the model accuracy is an urgent problem to be solved by those skilled in the art. Summary of the Invention

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

[0009] To achieve the above purpose, the present invention provides a processing mold for a concrete sealed tank model of an underground gas storage, including:

[0010] An outer ring assembly, which is a cylindrical structure with openings at both the top and bottom;

[0011] An inner ring assembly, which 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 less than the height of the outer ring assembly. The lower ends of the outer ring assembly and the inner ring assembly are arranged on a base;

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

[0013] Further, the outer ring assembly is formed by a plurality of first sector ring columns, the adjacent first sector ring columns are detachably connected, the first sector ring columns are arranged on the base, and the outer surface of the centering ring is in contact with the first sector ring columns.

[0014] Further, it further includes:

[0015] A positioning plate is arranged on the outer surface of the first sector ring column, positioning pin holes are formed in the positioning plate, and the positioning pin holes between adjacent first sector ring columns correspond to each other and a positioning pin is inserted;

[0016] A first fixing plate is arranged on the outer surface of the first sector ring column, a plurality of first fixing holes are formed in the first fixing plate, and the first fixing holes between adjacent first sector ring columns correspond to each other and fixing bolts are inserted;

[0017] Reinforcing rib plates are respectively connected to the first fixing plate and the first sector ring column.

[0018] Further, the inner ring assembly is formed by a plurality of second sector ring columns, the adjacent second sector ring columns are detachably connected, a top cover is hermetically arranged at the upper ends of the plurality of second sector ring columns, the second sector ring columns are arranged on the base, and the inner surface of the centering ring is in contact with the second sector ring columns.

[0019] Further, it further includes:

[0020] A second fixing plate is arranged on the inner surface of the second sector ring column, and second fixing holes are formed in the second fixing plate;

[0021] A third fixing plate corresponds to the plurality of second fixing plates, third fixing holes are arranged in the third fixing plate corresponding to the second fixing holes, and fastening pins are inserted into the second fixing holes and the third fixing holes.

[0022] Further, a first notch is arranged on the second fixing plate, a second notch is arranged on the third fixing plate, and when the second fixing holes and the third fixing holes correspond to each other, the first notch and the second notch correspond to each other.

[0023] Further, a first inclined groove is arranged on the upper edge of the second sector ring column, a second inclined groove is arranged on the lower edge of the top cover, and the first inclined groove is adapted to the second inclined groove.

[0024] Further, it further includes:

[0025] Lifting component, arranged on the lower surface of the top cover;

[0026] Channel steel, the length of which is greater than the outer diameter of the outer ring component;

[0027] Lifting rod, one end of which is threadedly connected to the channel steel, and the other end is connected to the lifting component.

[0028] Furthermore, the lifting component includes:

[0029] Fixed block, arranged on the lower surface of the top cover, the fixed block is provided with a connection hole along the longitudinal direction and a first connection pin hole communicating with the connection hole along the transverse direction;

[0030] One end of the lifting rod penetrates 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 connection pin hole, the other end of the lifting rod is inserted into the connection hole, and the first connection pin hole corresponds to the second connection pin hole and a connection pin is inserted.

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

[0032] S1: Splice the second sector 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 and the third fixing plate through fastening pins, and place the top cover on the top of the second sector ring columns to form an inner ring component;

[0033] S2: Splice the first sector ring columns together so that the positioning pin holes between adjacent first sector ring columns correspond to each other and positioning pins are inserted, and the first fixing holes between adjacent first sector ring columns correspond to each other one by one and fixing bolts are inserted to form an outer ring component;

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

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

[0036] S5: After the concrete solidifies to form a sealing tank model, invert the inner ring component, the outer ring component and the sealing tank model on the base;

[0037] S6: Arrange channel steel on the outer ring component, threadedly connect one end of the lifting rod to the channel steel, insert the other end into the connection hole, make the first connection pin hole correspond to the second connection pin hole and insert a connection pin, rotate the nut until the top cover is separated from the sealing tank model, and remove the second sector ring columns;

[0038] S7: Remove the positioning pin and the fixing bolt, and remove the first ring column to obtain the sealed tank model.

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

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

[0041] 2. Both the inner ring assembly and the outer ring assembly 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 forming of the concrete model; the inner ring assembly is provided with a lifting assembly, which can be quickly removed from the inner ring assembly in cooperation with the lifting rod and the channel steel, thus accelerating the demoulding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0043] Figure 1 It is a schematic structural diagram of the outer ring assembly;

[0044] Figure 2 It is a schematic structural diagram of the first ring column;

[0045] Figure 3 It is a schematic internal structure diagram of the inner ring assembly;

[0046] Figure 4 It is a schematic structural diagram of the top cover;

[0047] Figure 5 It is a schematic installation diagram of the fixing block;

[0048] Figure 6 It is a schematic structural diagram of the centering ring;

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

[0050] Figure 8 It is a schematic cooperation diagram of the outer ring assembly and the inner ring assembly;

[0051] Figure 9It is a schematic diagram of demoulding;

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

[0053] Among them, 1. Outer ring assembly; 101. First sector ring column; 2. Inner ring assembly; 201. Second sector 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 plate; 10. Second fixing plate; 1001. First notch; 11. Third fixing plate; 1101. Second notch; 12. Fastening pin; 13. Channel steel; 14. Lifting rod; 15. Fixed block; 1501. Connection hole; 1502. First connection pin hole; 16. Connection pin; 17. Nut. Specific implementation manners

[0054] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0055] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

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

[0057] The outer ring assembly 1, which is a cylindrical structure with openings at both the upper and lower ends;

[0058] The inner ring assembly 2, which 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 less 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 the base 4;

[0059] The centering ring 3, a concentric annular cavity is defined 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 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 a plurality of first sector ring columns 101, and the adjacent first sector ring columns 101 are detachably connected. The first sector ring columns 101 are arranged on the base 4, and the outer surface of the centering ring 3 is connected to the first sector ring columns 101.

[0061] In this embodiment, it further includes:

[0062] The positioning plate 5 is arranged on the outer surface of the first sector ring column 101. A positioning pin hole is formed in the positioning plate 5, and the positioning pin holes between adjacent first sector ring columns 101 correspond to each other and a positioning pin 6 is inserted therein;

[0063] The first fixing plate 7 is arranged on the outer surface of the first sector ring column 101. A plurality of first fixing holes are formed in the first fixing plate 7, and the first fixing holes between adjacent first sector ring columns 101 correspond to each other one by one and a fixing bolt 8 is inserted therein;

[0064] The reinforcing rib plate 9 is respectively connected to the first fixing plate 7 and the first sector ring column 101.

[0065] In this embodiment, the inner ring assembly 2 is formed by enclosing a plurality of second sector ring columns 201. Adjacent second sector ring columns 201 are detachably connected. A top cover 202 is hermetically arranged at the upper ends of the plurality of second sector ring columns 201. The upper surface of the top cover 202 has a certain arc. The second sector ring columns 201 are arranged on the base 4, and the inner surface of the middle ring 3 is connected to the second sector ring columns 201.

[0066] In this embodiment, it further includes:

[0067] The second fixing plate 10 is arranged on the inner surface of the second sector ring column 201. Second fixing holes are formed in the second fixing plate 10;

[0068] The third fixing plate 11 corresponds to the plurality of second fixing plates 10. Third fixing holes are arranged in the third fixing plate 11 corresponding to the second fixing holes, and a fastening pin 12 is inserted into the second fixing holes and the third fixing holes.

[0069] In this embodiment, a first notch 1001 is arranged on the second fixing plate 10, and a second notch 1101 is arranged on the third fixing plate 11. When the second fixing holes and the third fixing holes correspond to each other, the first notch 1001 and the second notch 1101 correspond to each other.

[0070] In this embodiment, a first inclined groove is arranged on the upper edge of the second sector ring column 201, and a second inclined groove is arranged on the lower edge of the top cover 202. The first inclined groove and the second inclined groove are adapted to each other. The upper surface of the top cover 202 is a smooth arc surface. The first inclined groove is an inclined groove with the inner side protruding upward and the outer side recessed downward, and the second inclined groove is an inclined groove with the inner side recessed upward and the outer side protruding downward. Therefore, the top cover 202 can be clamped on the upper edge of the second sector ring column 201. To improve the sealing performance, in some other embodiments, a sealing ring can also be arranged between the top cover 202 and the upper edge of the second sector ring column 201.

[0071] In this embodiment, it further includes:

[0072] The lifting assembly is arranged on the lower surface of the top cover 202;

[0073] Channel steel 13, whose length is greater than the outer diameter of the outer ring assembly 1;

[0074] Lifting rod 14, one end of which 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] Fixed block 15, arranged on the lower surface of the top cover 202. The fixed block 15 is provided with a connecting hole 1501 along the longitudinal direction and a first connecting pin hole 1502 communicating with the connecting hole 1501 along the transverse direction;

[0077] One end of the lifting rod 14 penetrates 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, and the first connecting pin hole 1502 corresponds to the second connecting pin hole and a connecting pin 16 is inserted.

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

[0079] S1: Splice the second sector ring columns 201 together so that the first notch 1001 corresponds to the second notch 1101, and the second fixing holes and the third fixing holes correspond to each other; connect the second fixing plate 10 and the third fixing plate 11 through the fastening pin 12, and place the top cover 202 on the top of the second sector ring column 201 to form the inner ring assembly 2;

[0080] S2: Splice the first sector ring columns 101 together so that the positioning pin holes between adjacent first sector ring columns 101 correspond to each other and insert the positioning pins 6, and the first fixing holes between adjacent first sector ring columns 101 correspond to each other 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 respectively in contact with the inner ring assembly 2 and the outer ring assembly 1;

[0082] S4: Pour 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 to form a sealed tank model, invert the inner ring assembly 2, the outer ring assembly 1 and the sealed tank model on the base 4;

[0084] S6: Arrange channel steel 13 on the outer ring assembly 1, thread-connect one end of the lifting rod 14 to the channel steel 13, insert the other end into the connection hole 1501, align the first connection pin hole 1502 with the second connection pin hole and insert the connection pin 16, and rotate the nut 17 until the top cover 202 is separated from the sealed tank model, then remove the second ring column 201;

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

[0086] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 should not be construed as a limitation to the present invention.

[0087] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A processing mold for a concrete sealing tank model of an underground gas storage, characterized in that, Comprising: An outer ring component (1), which is a cylindrical structure with openings at the upper and lower ends; An inner ring component (2), which is a cylindrical structure with a closed upper end and an open lower end. The inner ring component (2) is concentrically arranged inside the outer ring component (1), and the height of the inner ring component (2) is less than the height of the outer ring component (1). The lower ends of the outer ring component (1) and the inner ring component (2) are arranged on a base (4); A central ring (3). A concentric annular cavity is defined between the outer ring component (1) and the inner ring component (2). The cross-sectional shape of the central ring (3) is adapted to that of the annular cavity. The central ring (3) is located in the annular cavity and arranged on the base (4). The inner and outer surfaces of the central ring (3) are respectively in contact with the inner ring component (2) and the outer ring component (1).

2. The processing die of a concrete sealing tank model for an underground gas storage described in claim 1, characterized in that, The outer ring component (1) is surrounded by a plurality of first sector ring columns (101). Adjacent first sector ring columns (101) are detachably connected. The first sector ring columns (101) are arranged on the base (4). The outer surface of the central ring (3) is in contact with the first sector ring columns (101).

3. The processing die of a concrete sealed tank model for an underground gas storage according to claim 2, characterized in that, Also comprising: A positioning plate (5), which is arranged on the outer surface of the first sector ring column (101). Positioning pin holes are formed in the positioning plate (5). The positioning pin holes between adjacent first sector ring columns (101) correspond to each other and a positioning pin (6) is inserted; A first fixing plate (7), which is arranged on the outer surface of the first sector ring column (101). A plurality of first fixing holes are formed in the first fixing plate (7). The first fixing holes between adjacent first sector ring columns (101) correspond to each other one by one and a fixing bolt (8) is inserted; Reinforcing rib plates (9), which are respectively connected to the first fixing plate (7) and the first sector ring column (101).

4. The processing die of a concrete sealed tank model for an underground gas storage, according to claim 3, wherein The inner ring component (2) is surrounded by a plurality of second sector ring columns (201). Adjacent second sector ring columns (201) are detachably connected. The upper ends of the plurality of second sector ring columns (201) are hermetically provided with a top cover (202). The second sector ring columns (201) are arranged on the base (4). The inner surface of the central ring (3) is in contact with the second sector ring columns (201).

5. The processing mold of a concrete sealed tank model for an underground gas storage, as described in claim 4, is characterized in that, Also comprising: A second fixing plate (10), which is arranged on the inner surface of the second sector ring column (201). Second fixing holes are formed in the second fixing plate (10); A third fixing plate (11), which 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. A fastening pin (12) is inserted into the second fixing holes and the third fixing holes.

6. The processing die of a concrete sealed tank model for an underground gas storage, according to claim 5, is characterized in that, A first notch (1001) is arranged on the second fixing plate (10), and a second notch (1101) is arranged on the third fixing plate (11). When the second fixing holes and the third fixing holes correspond to each other, the first notch (1001) and the second notch (1101) correspond to each other.

7. The processing die of a concrete sealed tank model for an underground gas storage, as claimed in claim 6, wherein A first inclined groove is arranged on the upper edge of the second sector ring column (201), and a second inclined groove is arranged on the lower edge of the top cover (202). The first inclined groove and the second inclined groove are adapted to each other.

8. The processing mold of a concrete sealing tank model for an underground gas storage, as described in claim 7, is characterized in that, Also comprising: A lifting component, which is arranged on the lower surface of the top cover (202); Channel steel (13), the length of which is greater than the outer diameter of the outer ring assembly (1); Lifting rod (14), one end of which is threadedly connected to the channel steel (13), and the other end is connected to the lifting assembly.

9. The processing mold of a concrete sealing tank model for an underground gas storage, as described in claim 8, is characterized in that, The lifting assembly includes: Fixed block (15), arranged on the lower surface of the top cover (202), the fixed block (15) is provided with a connection hole (1501) along the longitudinal direction and a first connecting pin hole (1502) communicating with the connection hole (1501) along the transverse direction; One end of the lifting rod (14) penetrates 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 connection hole (1501), and the first connecting pin hole (1502) corresponds to the second connecting pin hole and a connecting pin (16) is inserted.

10. A method for preparing a concrete sealed tank model of an underground gas storage, using the processing mold for the concrete sealed tank model of the underground gas storage as claimed in claim 9, comprising the following steps: S1: Assemble the second sector ring columns (201) together so that the first notch (1001) corresponds to the second notch (1101), and the second fixing hole and the third fixing hole correspond to each other; connect the second fixing plate (10) and the third fixing plate (11) through a fastening pin (12), and place the top cover (202) on the top of the second sector ring column (201) to form an inner ring assembly (2); S2: Assemble the first sector ring columns (101) together so that the positioning pin holes between adjacent first sector ring columns (101) correspond to each other and positioning pins (6) are inserted, and the first fixing holes between adjacent first sector ring columns (101) correspond to each other one by one and fixing bolts (8) are inserted to form an outer ring assembly (1); 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 respectively in contact with the inner ring assembly (2) and the outer ring assembly (1); S4: Pour 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 to form a sealed tank model, invert the inner ring assembly (2), the outer ring assembly (1) and the sealed tank model on the base (4); S6: Arrange channel steel (13) on the outer ring assembly (1), threadedly connect one end of the lifting rod (14) to the channel steel (13), insert the other end into the connection hole (1501), make the first connecting pin hole (1502) correspond to the second connecting pin hole and insert a connecting pin (16), and rotate the nut (17) until the top cover (202) is separated from the sealed tank model, and remove the second sector ring column (201); S7: Remove the positioning pins (6) and the fixing bolts (8), remove the first sector ring columns (101), and obtain the sealed tank model.

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