Corrugated through type pump tower base and mounting method thereof

Abstract

The invention discloses a corrugated through type pump tower base and a mounting method thereof. The corrugated through type pump tower base comprises an upper structure and a lower structure, wherein the bottom of the upper structure is connected with the top of the lower structure; a groove is formed between the upper structure and the lower structure; the groove is formed in the circumferential direction of the bottom of the upper structure; the grooves are used for enabling shielding layer corrugations of the film storage tank to directly penetrate through, and the corrugations are located between the grooves and the top of the lower structure. The problem that the pump tower base interferes with the corrugation continuity can be solved.

Description

Technical Field

[0001] The invention relates to the field of membrane storage tank equipment, in particular to a corrugated through-type pump tower base and an installation method thereof. Background Art

[0002] Cryogenic membrane storage tank is a large-scale equipment used to store cryogenic media such as liquefied natural gas. Its structure includes concrete outer tank, inner tank and pump tower. The pump tower base is the key structure connecting the pump tower and the concrete foundation. Its design directly affects the safety, stability and transmission efficiency of liquefied natural gas transmission.

[0003] At present, the pump tower base in the prior art is mainly suitable for membrane storage tanks with a centrally symmetrical arrangement at the bottom. This base adopts an integral support structure and is bulky. When applied to membrane storage tanks, it will seriously interfere with the continuity of the corrugated plate, resulting in corrugation fractures. Secondly, as a key shielding component of the storage tank, the continuity of the corrugated plate is crucial to the sealing effect and thermal insulation performance. The fracture caused by the traditional base passing through the corrugated layer will form a low-temperature "thermal bridge", resulting in leakage of low-temperature media, which not only reduces the insulation efficiency, but may also cause cracks in the concrete foundation. In addition, the existing base structure is difficult to effectively integrate with the rectangular corrugated system, which increases the difficulty and cost of installation.

[0004] Therefore, it is urgent to propose a corrugated through-type pump tower base and an installation method thereof to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a corrugated through-type pump tower base and an installation method thereof, which can solve the problem of interference of the pump tower base with the continuity of the corrugations.

[0006] In order to solve the above technical problems, the present invention provides a corrugated through-type pump tower base, including an upper structure and a lower structure; the bottom of the upper structure is connected to the top of the lower structure; a groove is provided between the upper structure and the lower structure; the groove is arranged in the bottom circumference of the upper structure; the groove is used to allow the shielding layer corrugations of the membrane storage tank to pass directly through, and the corrugations are located between the groove and the top of the lower structure.

[0007] Further, the upper structure includes a first hollow cylindrical structure; the lower structure includes a connecting edge and a second hollow cylindrical structure; the connecting edge is installed on the top of the second hollow cylindrical structure; The top of the first hollow cylindrical structure is used to install the pump tower, and the bottom is connected to the connecting edge; a plurality of grooves are evenly arranged around the bottom of the first hollow cylindrical structure; the shielding layer corrugations pass through the grooves and are located between the grooves and the connecting edge.

[0008] Furthermore, a mounting edge is formed between adjacent grooves; and the connecting edge is provided with a connecting groove plugged into the mounting edge.

[0009] Furthermore, a limiting groove connected to the groove is provided on the mounting edge; the limiting groove is parallel to the connecting groove; the limiting groove and the connecting edge form a Z-direction locking mechanism for fixing the upper structure and the lower structure.

[0010] Furthermore, the upper structure also includes a flange edge vertically connected to the bottom of the first hollow cylindrical structure; the flange edge is located between adjacent grooves; and corresponding mounting holes are provided on the flange edge, the connecting edge and the shielding layer.

[0011] Furthermore, the shielding layer is provided with a welding hole for connecting the upper structure and the lower structure; the welding hole is located in the overlapping area of ​​the upper structure and the lower structure, and the position of the welding hole avoids the corrugation of the shielding layer.

[0012] In addition, the present invention also proposes a method for installing a corrugated through-type pump tower base, which is used to install the corrugated through-type pump tower base as described above, and specifically includes the following steps: installing the substructure in the insulation layer; and The shielding layer and the upper structure of the membrane storage tank are installed in sequence, and the corrugations of the shielding layer correspond to and penetrate the grooves.

[0013] Furthermore, after the upper structure is installed, the upper structure and the lower structure are fixed by welding through welding holes provided on the shielding layer.

[0014] Furthermore, when installing the upper structure, first align the installation edge of the upper structure with the connecting edge of the lower structure, and then rotate the upper structure so that the limiting groove on the installation edge is inserted into and fixed to the connecting edge along the Z direction to form a Z-direction locking mechanism.

[0015] Furthermore, after the upper structure is installed, bolts are passed through the flange edge of the upper structure, the shielding layer and the mounting holes on the connecting edge of the lower structure in sequence, and nuts are tightened to form a detachable connecting mechanism.

[0016] Through the above technical solution, the present invention has the following beneficial effects: By adopting a separate setting of the upper structure and the lower structure, and setting a groove between the two structures so that the shielding layer corrugations of the membrane storage tank can pass through directly, the problem of interference of the traditional pump tower base on the continuity of the corrugations can be solved, and the integrity and sealing performance of the shielding layer can be effectively retained. Secondly, the groove structure adopted in this application can actively adapt to the corrugation shape, so that the corrugations can pass through naturally instead of being forced to change the path. This "corrugation adaptive" design eliminates the stress interference between the corrugations and the supporting structure, and fundamentally solves the problem of stress concentration in the contact area. At the same time, the setting of the groove enables the base to be perfectly integrated with the corrugated plate, avoiding the formation of "thermal bridges" and improving the sealing and thermal insulation efficiency of the entire system.

[0017] In addition, by setting the Z-axis locking mechanism between the installation edge and the connection edge, the upper structure and the lower structure can be quickly and firmly connected, which greatly simplifies the installation process. This detachable Z-axis locking connection method has significant installation convenience and maintenance advantages, and supports the inspection and replacement of the pump tower base without destroying the shielding layer structure. At the same time, the device provides two alternative connection methods: welding fixation and bolt connection, forming a triple safety guarantee, which enhances the adaptability and reliability of the installation method. The setting of the flange edge further enhances the structural strength, and the through-channel specially set for the shielding layer corrugation enables the normal operation of the corrugation in a low temperature environment, which can prevent temperature stress damage to the concrete foundation and extend the service life of the entire system.

[0018] In addition, the integral cylindrical structure of the device has excellent stress-bearing performance and structural stability, and is particularly suitable for the pump tower support requirements of large storage tanks, and can maintain reliable support performance under extremely low temperature conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the corrugated through-type pump tower base and the corrugations of the shielding layer after installation in one embodiment of the present invention; Figure 2 It is a schematic structural diagram of a shielding layer in one embodiment of the present invention; Figure 3 It is a schematic diagram of the overall structure of the upper structure and the lower structure of the corrugated through-type pump tower base in an embodiment of the present invention in a Z-direction locking manner; Figure 4 An exploded view of the upper structure and the lower structure of the corrugated through-type pump tower base in an embodiment of the present invention in a Z-direction locking manner; Figure 5 It is a schematic diagram of the overall structure of the upper structure and the lower structure of the corrugated through-type pump tower base in one embodiment of the present invention in a detachable connection manner; Figure 6 The present invention is a flowchart of a method for installing a corrugated through-type pump tower base in one embodiment of the present invention.

[0020] In the figure, 11, upper structure; 12, groove; 13, installation edge; 14, limit groove; 15, flange edge; 21, lower structure; 22, connecting edge; 23, connecting groove; 5, shielding layer; 51, corrugation; 52, perforation. DETAILED DESCRIPTION

[0021] A corrugated through-type pump tower base and its installation method of the present invention will be described in more detail below in conjunction with the accompanying drawings, wherein preferred embodiments of the present invention are shown, and it should be understood that those skilled in the art can modify the present invention described herein while still achieving the advantageous effects of the present invention. Therefore, the following description should be understood as being widely known to those skilled in the art, and not as a limitation of the present invention.

[0022] The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the accompanying drawings are in very simplified form and are not in exact proportions, and are only used to facilitate and clearly assist in illustrating the purpose of the embodiments of the present invention.

[0023] like Figure 1-Figure 3 As shown, an embodiment of the present invention provides a corrugated through-type pump tower base, including an upper structure 11 and a lower structure 21.

[0024] Specifically, the bottom of the upper structure 11 is connected to the top of the lower structure 21; a groove 12 is provided between the upper structure 11 and the lower structure 21; the groove 12 is arranged in the circumference of the bottom of the upper structure 11; the groove 12 is used to allow the corrugations 51 of the shielding layer 5 of the membrane storage tank to pass directly through, and the corrugations 51 are located between the groove 12 and the top of the lower structure 21. Through this structural setting, the pump tower base can adapt to and accommodate the corrugations 51 of the shielding layer 5 of the membrane storage tank, which can effectively improve the integrity and sealing performance of the shielding layer 5 and reduce the risks of low-temperature leakage and heat conduction.

[0025] In a film storage tank, the corrugations 51 are usually used to adapt to thermal expansion and contraction in a low-temperature environment, and the size of the grooves 12 of this embodiment matches the height and spacing of the corrugations 51, so that the corrugations 51 can pass through smoothly without being squeezed or deformed.

[0026] In one embodiment, the upper structure 11 includes a first hollow cylindrical structure; the lower structure 21 includes a connecting edge 22 and a second hollow cylindrical structure; the connecting edge 22 is installed on the top of the second hollow cylindrical structure; the top of the first hollow cylindrical structure is used to install the pump tower, and the bottom is connected to the connecting edge 22; the bottom of the first hollow cylindrical structure is evenly provided with a plurality of the grooves 12 in the circumferential direction; the shielding layer 5 corrugation 51 passes through the groove 12 and is located between the groove 12 and the connecting edge 22. It is known to those skilled in the art that the size of the hollow cylindrical structure can be set according to actual needs, and also includes other shape embodiments other than this embodiment, such as square or polygonal column structures, etc.

[0027] In a specific example, since the corrugations 51 of the shielding layer 5 of the membrane storage tank are usually arranged orthogonally and crosswise, a grid structure is formed. This arrangement enables the corrugations 51 to absorb the stress caused by thermal expansion and contraction in the two main directions of the horizontal and vertical directions. Based on the arrangement characteristics of the corrugations 51, four grooves 12 can be set in the circumferential direction of the bottom of the upper structure 11 in this embodiment, and the four grooves 12 are respectively located above the two corrugations 51 except for the intersection. It can perfectly adapt to the orthogonal arrangement of the corrugations 51, so that the corrugations 51 in each direction can pass smoothly, and at the same time make the structure symmetrical and uniform in force.

[0028] In one embodiment, in combination Figure 3 and Figure 4 As shown, a mounting edge 13 is formed between adjacent grooves 12; the connecting edge 22 is provided with a connecting groove 23 plugged into the mounting edge 13; and the shielding layer 5 is provided with a through hole 52 for the mounting edge 13 to pass through. This arrangement enhances the connection stability between the upper structure 11 and the lower structure 21, and improves the seismic performance and deformation resistance of the overall structure.

[0029] In this embodiment, the mounting edge 13 between adjacent grooves 12 is located at the same circumferential position as the grooves 12, forming four equally divided mounting areas. The outer contour of the mounting edge 13 precisely matches the inner contour of the connecting groove 23 to facilitate adjustment and positioning during installation. The diameter of the perforation 52 on the shielding layer 5 (the position of the perforation 52 can be the same as the position of the welding hole) is slightly larger than the outer diameter of the mounting edge 13 to avoid squeezing or stretching the shielding layer 5 during installation.

[0030] In a specific example, the contact surface between the mounting edge 13 and the connection groove 23 can be specially treated, such as sandblasting or coating with a material with a high friction coefficient, to increase the friction and stability of the connection. At the same time, a reinforcement ring can be added to the edge of the perforation 52 to prevent tearing or deformation around the perforation 52 under low temperature conditions. The material of the reinforcement ring is the same as that of the shielding layer 5, and is connected to the shielding layer 5 by welding.

[0031] In this embodiment, the mounting edge 13 is provided with a limiting groove 14 connected to the groove 12. Specifically, the limiting groove 14 is parallel to the connecting groove 23; the limiting groove 14 and the connecting edge 22 form a Z-direction locking mechanism for fixing the upper structure 11 and the lower structure 21. The provision of the Z-direction locking mechanism increases the connection firmness of the base structure, simplifies the installation process, and reduces the installation time and labor cost.

[0032] The slot width of the limiting slot 14 can be determined according to the thickness of the connecting edge 22 , so that the limiting slot 14 can better clamp the connecting edge 22 .

[0033] In another embodiment, if Figure 1 , Figure 2 and Figure 5 As shown, the upper structure 11 also includes a flange 15 vertically connected to the bottom of the first hollow cylindrical structure. Specifically, the flange 15 is located between adjacent grooves 12; the flange 15, the connecting edge 22 and the shielding layer 5 are all provided with corresponding mounting holes (the positions of the mounting holes and the welding holes may be consistent). The provision of the flange 15 further enhances the connection strength between the upper structure 11 and the lower structure 21, and improves the stability and impact resistance of the overall structure.

[0034] The flange 15 is made of the same material as the first hollow cylindrical structure, and the connection between the periphery and the first hollow cylindrical structure adopts a rounded transition to reduce stress concentration. The mounting holes are evenly distributed on the flange 15, and precisely correspond to the mounting holes on the connecting edge 22 and the shielding layer 5, and the position error is controlled within a small range.

[0035] In another embodiment, the shielding layer 5 is provided with a welding hole for connecting the upper structure 11 and the lower structure 21; the welding hole is located in the overlapping area of ​​the upper structure 11 and the lower structure 21, and the position of the welding hole avoids the corrugation 51 of the shielding layer 5, so that the welding operation will not affect the integrity and normal function of the corrugation 51 of the shielding layer 5, thereby enhancing the integrity and sealing performance of the structure.

[0036] The welding holes are evenly distributed in the overlapping area of ​​the upper structure 11 and the lower structure 21. The center position of the welding hole should maintain a sufficient safety distance from the peak and valley of the corrugation 51 to avoid the overlap of the welding heat affected zone with the corrugation 51, resulting in deformation of the corrugation 51 or degradation of material properties. The welding adopts a penetrating setting, that is, the weld penetrates the shielding layer 5, directly connecting the upper structure 11 and the lower structure 21 to form a solid overall structure.

[0037] In addition, if Figure 6As shown, this embodiment also provides a method for installing a corrugated through-type pump tower base, which is used to install the corrugated through-type pump tower base as described above, and specifically includes the following steps: S1, installing the lower structure 21 in the insulation layer; and S2, sequentially installing the shielding layer 5 and the upper structure 11 of the membrane storage tank, and making the corrugations 51 of the shielding layer 5 correspond to and pass through the grooves 12.

[0038] In one embodiment, after the upper structure 11 is installed, the upper structure 11 and the lower structure 21 are fixed by welding through welding holes provided on the shielding layer 5 .

[0039] In another embodiment, when installing the upper structure 11, first align the installation edge 13 of the upper structure 11 with the connecting edge 22 of the lower structure 21, and then rotate the upper structure 11 so that the limiting groove 14 on the installation edge 13 is inserted into and fixed to the connecting edge 22 along the Z direction, forming a Z-direction locking mechanism.

[0040] In another embodiment, after installing the upper structure 11, bolts are passed through the flange edge 15 of the upper structure 11, the shielding layer 5 and the mounting holes on the connecting edge 22 of the lower structure 21 in sequence, and nuts are tightened to form a detachable connecting mechanism.

[0041] In this embodiment, first, a suitable position is reserved in the insulating layer at the bottom of the storage tank to install the lower structure 21. For example, the gap between the lower structure 21 and the insulating layer is filled with materials such as foamed polyurethane, and after it is cured, an integral structure is formed, so that the lower structure 21 is firmly fixed in the insulating layer. Then the shielding layer 5 is laid, and the positions of the perforations 52, mounting holes or welding holes that need to be opened are marked on the shielding layer 5. Finally, the upper structure 11 is installed. Since the corrugations 51 of the shielding layer 5 of the membrane storage tank are arranged orthogonally and cross-shaped to form a grid structure, it is necessary to align the main transverse and vertical corrugations 51 with the four grooves 12 respectively. Regarding the installation of the upper structure 11, one of the following three installation methods can be selected: The first method is to align the mounting edge 13 of the upper structure 11 with the connecting groove 23 of the lower structure 21, so that the mounting edge 13 is fully inserted into the connecting groove 23. Then rotate the upper structure 11 clockwise so that the limit groove 14 on the mounting edge 13 clamps the connecting edge 22. The second method is to embed nuts or set threaded holes at the mounting hole position of the connecting edge 22 before installing the lower structure 21. When installing the upper structure 11, insert the bolts from the flange edge 15 of the upper structure 11 downward through the shielding layer 5 and the mounting hole of the connecting edge 22, and screw them into the embedded nuts or threaded holes to tighten. The third method is to weld the upper structure 11 to the lower structure 21 through the preset welding holes on the shielding layer 5.

[0042] In summary, the corrugated through-type pump tower base and the installation method thereof proposed by the present invention have the following advantages: By adopting a separate setting of the upper structure and the lower structure, and setting a groove between the two structures so that the shielding layer corrugations of the membrane storage tank can pass through directly, the problem of interference of the traditional pump tower base on the continuity of the corrugations can be solved, and the integrity and sealing performance of the shielding layer can be effectively retained. Secondly, the groove structure adopted in this application can actively adapt to the corrugation shape, so that the corrugations can pass through naturally instead of being forced to change the path. This "corrugation adaptive" design eliminates the stress interference between the corrugations and the supporting structure, and fundamentally solves the problem of stress concentration in the contact area. At the same time, the setting of the groove enables the base to be perfectly integrated with the corrugated plate, avoiding the formation of "thermal bridges" and improving the sealing and thermal insulation efficiency of the entire system.

[0043] In addition, by setting the Z-axis locking mechanism between the installation edge and the connection edge, the upper structure and the lower structure can be quickly and firmly connected, which greatly simplifies the installation process. This detachable Z-axis locking connection method has significant installation convenience and maintenance advantages, and supports the inspection and replacement of the pump tower base without destroying the shielding layer structure. At the same time, the device provides two alternative connection methods: welding fixation and bolt connection, forming a triple safety guarantee, which enhances the adaptability and reliability of the installation method. The setting of the flange edge further enhances the structural strength, and the through-channel specially set for the shielding layer corrugation enables the normal operation of the corrugation in a low temperature environment, which can prevent temperature stress damage to the concrete foundation and extend the service life of the entire system.

[0044] In addition, the integral cylindrical structure of the device has excellent stress-bearing performance and structural stability, and is particularly suitable for the pump tower support requirements of large storage tanks, and can maintain reliable support performance under extremely low temperature conditions.

[0045] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A corrugated through-type pump tower base, characterized in that: It comprises an upper structure and a lower structure; the bottom of the upper structure is connected to the top of the lower structure; a groove is provided between the upper structure and the lower structure; the groove is arranged in the bottom circumference of the upper structure; the groove is used to allow the shielding layer corrugations of the membrane storage tank to pass directly through, and the corrugations are located between the groove and the top of the lower structure.

2. The corrugated through-type pump tower base according to claim 1, characterized in that: The upper structure comprises a first hollow cylindrical structure; the lower structure comprises a connecting edge and a second hollow cylindrical structure; the connecting edge is mounted on the top of the second hollow cylindrical structure; The top of the first hollow cylindrical structure is used to install the pump tower, and the bottom is connected to the connecting edge; a plurality of grooves are evenly arranged around the bottom of the first hollow cylindrical structure; the shielding layer corrugations pass through the grooves and are located between the grooves and the connecting edge.

3. The corrugated through-type pump tower base according to claim 2, characterized in that: A mounting edge is formed between adjacent grooves; and a connecting groove plugged into the mounting edge is provided on the connecting edge.

4. The corrugated through-type pump tower base according to claim 3, characterized in that: The mounting edge is provided with a limiting groove connected with the groove; the limiting groove is parallel to the connecting groove; the limiting groove and the connecting edge form a Z-direction locking mechanism for fixing the upper structure and the lower structure.

5. The corrugated through-type pump tower base according to claim 2, characterized in that: The upper structure also includes a flange edge vertically connected to the bottom of the first hollow cylindrical structure; the flange edge is located between adjacent grooves; and corresponding mounting holes are provided on the flange edge, the connecting edge and the shielding layer.

6. The corrugated through-type pump tower base according to claim 2, characterized in that: The shielding layer is provided with a welding hole for connecting the upper structure and the lower structure; the welding hole is located in the overlapping area of ​​the upper structure and the lower structure, and the position of the welding hole avoids the corrugation of the shielding layer.

7. A method for installing a corrugated through-type pump tower foundation, used for installing the corrugated through-type pump tower foundation as claimed in any one of claims 1 to 6, characterized in that: The details include: installing the substructure in the insulation layer; and The shielding layer and the upper structure of the membrane storage tank are installed in sequence, and the corrugations of the shielding layer correspond to and penetrate the grooves.

8. The method for installing a corrugated through-type pump tower base according to claim 7, characterized in that: After the upper structure is installed, the upper structure and the lower structure are fixed by welding through the welding holes provided on the shielding layer.

9. The method for installing a corrugated through-type pump tower base according to claim 7, characterized in that: When installing the upper structure, first align the installation edge of the upper structure with the connecting edge of the lower structure, and then rotate the upper structure so that the limiting groove on the installation edge is inserted into and fixed to the connecting edge along the Z direction to form a Z-direction locking mechanism.

10. The method for installing a corrugated through-type pump tower base according to claim 7, characterized in that: After the upper structure is installed, bolts are passed through the flange edge of the upper structure, the shielding layer and the mounting holes on the connecting edge of the lower structure in sequence, and nuts are tightened to form a detachable connecting mechanism.

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