Low-temperature film storage tank pump tower base device

Abstract

The invention discloses a low-temperature thin film storage tank pump tower base device, and relates to the field of thin film tanks, the low-temperature thin film storage tank pump tower base device comprises a limiting device and a main support, a plurality of secondary supports are arranged on the main support, the limiting device is arranged on the plurality of secondary supports, and a main anchoring plate and a secondary anchoring plate are arranged on the secondary supports; the peripheral sides of the main anchoring plate and the secondary anchoring plate are connected with a main corrugated plate and a secondary corrugated plate respectively. The height difference after the four supporting seats are fixed is reduced, the fixing firmness of the primary shielding layer and the secondary shielding layer is improved, damage to the supporting seats is reduced, and the connecting firmness of the supporting seats is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of thin film tanks, in particular to a low-temperature thin film storage tank pump tower base device. BACKGROUND

[0002] The current low-temperature thin film storage tank is a large equipment for storing low-temperature medium such as liquefied natural gas, and its structure includes an outer tank, an inner tank and a pump tower and other components. The pump tower base is a key structure connecting the pump tower and the outer tank body, and its design directly affects the safety, stability and transmission efficiency of liquefied natural gas transmission.

[0003] In the prior art, a patent number CN202510372539.8, a patent name is a thin film storage tank pump tower base device and its installation method; including limiting device, a plurality of support seats, corrugated plates and wing plates; the limiting device and the support seat are installed above and below the support platform respectively; the support seat passes through the wing plate, one end is connected with the support platform, and the other end extends into the concrete foundation and is connected with the steel plate; the wing plate is connected with the corrugated plate to form the main and secondary shielding layers; the main and secondary shielding layers are located below the support platform.

[0004] For the above-mentioned related patent, four support seats are usually provided during use, and the four support seats need to be leveled during installation. On the one hand, there is an error in the leveling process of the support seat, which is easy to cause height difference of the plurality of support seats, resulting in layer difference of the main and secondary shielding layers, and also causing the upper structure to have an inclination angle, affecting the connection of the pump tower structure. On the other hand, the temperature difference between the upper and lower support seats is close to 180 degrees Celsius, the top platform is affected by low temperature and contracts towards the center, driving the top of the support seat to move towards the center of the pump tower base, and the bottom of the support seat generates a large stress, which is easy to cause damage to the support seat, and needs to be improved. SUMMARY

[0005] In order to reduce the height difference of the four support seats after being fixed, improve the firmness of the main and secondary shielding layers, and reduce the damage to the support seat, and improve the firmness of the support seat connection, the present application provides a low-temperature thin film storage tank pump tower base device.

[0006] The low-temperature thin film storage tank pump tower base device provided by the present application adopts the following technical scheme: The limiting device and the main support are provided, a plurality of secondary supports are provided on the main support, the limiting device is provided on the plurality of secondary supports, a main anchor plate and a secondary anchor plate are provided on the secondary support, and a main corrugated plate and a secondary corrugated plate are connected to the circumferential side of the main anchor plate and the secondary anchor plate, respectively.

[0007] By adopting the technical scheme, in the processing process, the main support and the secondary support structure are prefabricated into an integrated body in advance in the factory, the upper planes of the main support and the secondary support are adjusted, the structure is prefabricated into an integrated body in advance in the factory, the verticality and the flatness of the device are guaranteed to meet the accuracy requirements by using advanced equipment, technology and quality control measures in the factory, so that the horizontality of the plurality of secondary supports can be ensured, the layer difference of the main and secondary corrugated plates can be reduced, the sealing property of the membrane tank is improved, the inclination angle of the upper structure is reduced, and the firmness of the pump tower structure connection is improved; the bottom height of the secondary support can be raised by the main support, the height difference between the upper and lower secondary supports is reduced, so that the temperature difference between the upper and lower secondary supports can be greatly reduced, the centripetal force of the secondary support is reduced, the stress received by the secondary support is reduced, the damage of the secondary support is reduced, and the firmness and stability of the secondary support are improved.

[0008] Preferably, the main support is composed of a main support leg and a platform steel plate at the top of the main support leg, and the main support is filled with first heat insulation cotton; the secondary support is composed of a secondary support leg and a support column, the secondary support leg is arranged on the platform steel plate, the support column is arranged on the secondary support leg, and the main and secondary anchoring plates are arranged on the periphery of the support column.

[0009] In one embodiment, the main support and the secondary support are integrally formed and are both solid metal materials; in another embodiment, the secondary support is filled with second heat insulation cotton, a plurality of polyurethane blocks are filled between the platform steel plate and the secondary anchoring plate, and upper plywood is arranged on the polyurethane blocks.

[0010] By adopting the above technical scheme, the platform steel plate is used to support a plurality of secondary supports, the main and secondary anchoring plates are used to realize the sealed connection with the main and secondary corrugated plates, and the first and second heat insulation cottons are used in cooperation to greatly reduce the heat loss. Preferably, a plurality of positioning seats are arranged at the bottom of the limiting device, positioning holes matched with the support columns are arranged in the positioning seats, positioning pins are inserted into the positioning seats, the positioning pins are arranged through the positioning seats, and locking insertion rods are inserted into the positioning pins.

[0011] By adopting the above technical scheme, the positioning seats are matched with the support columns, and the positioning pins are used in cooperation to lock the support columns, so that the convenience of the connection of the limiting device is improved.

[0012] Preferably, a gap is formed between the positioning holes and the outer walls of the support columns, and the positioning pins are arranged in an inclined manner along the length direction of the secondary supports to the center positions of the secondary supports.

[0013] By adopting the technical scheme, the formed gap can generate a gap for deformation of the secondary support, thereby reducing extrusion of the limiting device caused by deformation of the secondary support, reducing the inclination angle of the upper structure, improving the firmness of the pump tower structure connection, and cooperating with the inclined positioning pin to reduce extrusion of the positioning pin and the positioning seat in the process of deformation of the secondary support, thereby improving the firmness of the positioning seat connection.

[0014] Preferably, a first cavity is formed between adjacent polyurethane blocks, and a second cavity is formed between adjacent plywood.

[0015] Preferably, a limiting plate is integrally formed on the side of the platform steel plate, and a limiting groove is formed in the polyurethane block and matched with the limiting plate.

[0016] Preferably, the main anchor plate and the main corrugated plate form a main shielding layer, the secondary anchor plate and the secondary corrugated plate form a secondary shielding layer, a shielding cavity is formed between the main shielding layer and the secondary shielding layer, a main plywood is arranged in the shielding cavity, a plurality of corrugations for deformation are formed on the main corrugated plate and the secondary corrugated plate, and a corrugation cavity is formed at the corrugation of the main corrugated plate and the secondary corrugated plate.

[0017] Preferably, the positioning hole is an oval hole, a long axis direction of the oval hole is inclined to the center position of the secondary support, the positioning pin is arranged along the long axis direction of the oval hole, the side wall of the supporting column abuts on the short axis side wall of the oval hole, a deformation cavity is formed on one side of the oval hole close to the long axis side wall, and a deformation block is filled in the deformation cavity.

[0018] By adopting the above technical scheme, the oval design is adopted, the short axis side wall can limit the supporting column, the stability of the limiting device is ensured, when the supporting column deforms to the center position, the deformation block can play an auxiliary supporting role, and the deformation amount of the supporting column can be met.

[0019] Preferably, the main anchor plate is arranged on the side of the secondary support, the secondary anchor plate is fixed on the top of the main support, and the secondary anchor plate is located at the bottom of the secondary support.

[0020] By adopting the above technical scheme, the temperature difference between the upper and lower secondary supports can be reduced, the centripetal force generated on the secondary support due to low-temperature shrinkage can be reduced, the main secondary support and the main secondary corrugated plate can be integrally formed and manufactured, thereby reducing the amount of on-site welding work and improving construction efficiency.

[0021] Preferably, the limiting device is welded and fixed on the plurality of secondary supports.

[0022] In summary, the present application has at least one of the following beneficial technical effects: 1. In the process of processing, prefabricated way, the main support and secondary support structure in advance prefabricated into a factory, using advanced equipment, technology and quality control measures, to ensure that the verticality and flatness of the device meet the accuracy requirements, so as to ensure the horizontal accuracy of several secondary supports, reduce the layer difference of the main and secondary corrugated plates, improve the sealing of the membrane tank, reduce the inclination angle of the upper structure, and improve the firmness of the pump tower structure connection; Through the main support, the temperature difference between the upper and lower secondary supports can be greatly reduced, the centripetal force can be reduced, the stress on the secondary support can be reduced, the damage to the secondary support can be reduced, and the firmness and stability of the secondary support can be improved; 2. The platform steel plate is used to support a plurality of secondary supports, and the main and secondary anchoring plates are supported by the secondary supports, and the first and second heat insulation cotton are used in cooperation to greatly reduce the heat loss and ensure the effect of the base; The plywood is used in cooperation with the polyurethane material and the platform steel plate to support the secondary anchoring plate and the secondary corrugated plate, and the stability of the base is improved. 3. The main and secondary supports and the main and secondary corrugated plates are integrally formed, so as to reduce the amount of welding work on site and improve the construction efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a low-temperature membrane storage tank pump tower base device according to Embodiment 1 of the present application; Figure 2 It is a sectional view of a low-temperature membrane storage tank pump tower base device according to Embodiment 1 of the present application; Figure 3 It is a schematic diagram of the overall structure of a low-temperature membrane storage tank pump tower base device according to Embodiment 3 of the present application; Figure 2 It is an enlarged schematic diagram of part A; Figure 4 It is a schematic diagram of the main embodiment of the positioning hole as a cylindrical shape according to Embodiment 1 of the present application; Figure 5 It is a schematic diagram of the main embodiment of the positioning hole as an oval hole according to Embodiment 1 of the present application; Figure 6 It is a schematic diagram of the main embodiment of the secondary anchoring plate structure according to Embodiment 2 of the present application; Figure 7 It is a schematic diagram of the main embodiment of the secondary anchoring plate structure according to Embodiment 2 of the present application; Figure 8 It is a schematic diagram of the main embodiment of the secondary anchoring plate structure according to Embodiment 2 of the present application; Fig. 1 is a limiting device; 2 is a positioning seat; 3 is a positioning pin; 4 is a supporting column; 5 is a second cavity; 6 is a first cavity; 7 is a main anchoring plate; 8 is a secondary anchoring plate; 9 is a main corrugated plate; 10 is a secondary corrugated plate; 11 is a secondary supporting leg; 12 is an upper plywood; 13 is a platform steel plate; 14 is a limiting groove; 15 is a polyurethane block; 16 is a main supporting leg; 17 is a first heat insulation cotton; 18 is a second heat insulation cotton; 19 is a positioning hole; 20 is a corrugation; 21 is a main plywood; 22 is a gap seam; 23 is a deformation block; 24 is a secondary supporting seat; 25 is a main supporting seat; 26 is a corrugated cavity; 27 is a limiting plate; 28 is a deformation cavity. DETAILED DESCRIPTION

[0024] The following will be described in detail in combination with the accompanying drawings. Figure 1 - Figure 8 The present application is further described in detail.

[0025] The embodiment of the present application discloses a low-temperature thin film storage tank pump tower base device.

[0026] Embodiment 1

[0027] Referring to Figure 1 A low-temperature thin film storage tank pump tower base device, comprising a limiting device 1 and a main supporting seat 25, the limiting device 1 is used for limiting the pump tower to the outside world; four secondary supporting seats 24 are installed on the main supporting seat 25, the limiting device 1 is fixed on the four secondary supporting seats 24, the main anchoring plate 7 and the secondary anchoring plate 8 are fixed on the secondary supporting seat 24, the main anchoring plate 7 and the secondary anchoring plate 8 are respectively connected with the main corrugated plate 9 and the secondary corrugated plate 10 on the side, the outer diameter of the main anchoring plate 7 is larger than that of the secondary anchoring plate 8, so that the welding position can be staggered, and the firmness of the welding fixation of the main anchoring plate 7 and the secondary anchoring plate 8 is improved. The main anchoring plate 7 and the main corrugated plate 9 constitute a main shielding layer, and the main shielding layer is arranged close to the limiting device 1. The secondary anchoring plate 8 and the secondary corrugated plate 10 constitute a secondary shielding layer, and a shielding cavity is formed between the main shielding layer and the secondary shielding layer, and the main plywood 21 is fixed in the shielding cavity. The main corrugated plate 9 and the secondary corrugated plate 10 are both formed with a plurality of corrugations 20 for deformation, and a corrugated cavity 26 is formed at the corrugation 20. The structure of the main supporting seat 25 and the secondary supporting seat 24 is prefabricated in the factory in advance, the upper plane of the main supporting seat 25 and the secondary supporting seat 24 is adjusted, the structure is prefabricated in the factory in advance, the verticality and flatness of the device are guaranteed to meet the accuracy requirements by using advanced equipment, technology and quality control measures in the factory, so that the level of the secondary supporting seat 24 can be ensured, the layer difference of the main and secondary corrugated plates 10 can be reduced, the sealing property of the thin film tank is improved, the inclination angle of the upper structure is reduced, and the firmness of the connection of the pump tower structure is improved.

[0028] The main support 25 is composed of the main leg 16 and the platform steel plate 13 at the top of the main leg 16, and the main support 25 is filled with the first heat insulation cotton 17. The secondary support 24 is composed of the secondary leg 11 and the support column 4, the secondary leg 11 is fixed on the platform steel plate 13, and the support column 4 is fixed on the secondary leg 11. The main anchor plate 7 and the secondary anchor plate 8 are fixed on the side of the support column 4. In an embodiment, the secondary leg 11 and the support column 4 are integrally formed and are both solid metal materials. In another embodiment, the secondary leg 11 is filled with the second heat insulation cotton 18. The platform steel plate 13 and the secondary anchor plate 8 are filled with a plurality of polyurethane blocks 15, and the polyurethane blocks 15 are fixed with the upper plywood 12. The upper plywood 12 can bear force more uniformly and improve the stability of the membrane tank. First cavities 6 are formed between adjacent polyurethane blocks 15, and the cavities are rectangular cavities. Second cavities 5 are formed between adjacent upper plywoods 12. The platform steel plate 13 is integrally formed with a limiting plate 27 around the side of the platform steel plate 13. The limiting plate 27 is in the form of a circular ring. Limiting grooves 14 are formed in the polyurethane blocks 15 and are inserted into the limiting plate 27, so that the main support 25 can be held more conveniently.

[0029] A plurality of positioning seats 2 are fixed at the bottom of the limiting device 1. Positioning holes 19 are formed in the positioning seats 2 and are inserted into the support columns 4. The positioning holes 19 can be in the form of a cylinder. A gap 22 is formed between the positioning holes 19 and the outer wall of the support column 4. Positioning pins 3 are inserted through the positioning seats 2. Locking rods are inserted into the positioning pins 3. Figure 4 The length direction of the positioning pin 3 can be inclined to the center of the secondary support 24 as shown in the figure.

[0030] In addition to the above-mentioned cylindrical shape, the positioning hole 19 can also be in the form of an elliptical hole. The long axis direction of the elliptical hole is inclined to the center of the secondary support 24. The positioning pin 3 is arranged along the long axis direction of the elliptical hole. The side wall of the support column 4 abuts against the short axis side wall of the elliptical hole. A deformation cavity 28 is formed in the elliptical hole close to the long axis side wall. In a preferred embodiment, a deformation block 23 is filled in the deformation cavity 28. The deformation block 23 is made of polyurethane material resistant to high temperature or is supported by a spring, so as to meet the requirements of low temperature environment.

[0031] The implementation principle of the cryogenic film storage tank pump tower base device in this application embodiment is as follows: During installation, the main support leg 16, secondary support 24, main anchor plate 7, and secondary anchor plate 8 are prefabricated, ensuring the level of the top of the secondary support 24. During on-site installation, the main support 25 is leveled, then the main corrugated plate 9 and secondary corrugated plate 10 are installed, and the main plywood 21 is fixed simultaneously. Then, the polyurethane block 15 and the upper plywood 12 are inserted for support. Finally, the limiting device 1 is fixed using the positioning pin 3, thus completing the installation of the pump tower base. This design eliminates the need to level the four secondary supports 24 separately, requiring only the leveling of one main support 25, reducing the number of leveling operations and improving ease of use. Furthermore, it better ensures the levelness of the top of the secondary support 24, reduces layer differences between the main and secondary corrugated plates 10, improves the sealing performance of the film tank, reduces the tilt angle of the upper structure, and enhances the structural strength of the pump tower. On the other hand, it can reduce the height difference between the upper and lower parts of the secondary support 24 and reduce the temperature difference between them, thereby reducing the stress on the bottom of the secondary support 24 and improving its stability. In addition, the positioning seat 2 can provide sufficient space for the deformation of the secondary support 24, reduce the compression of the limiting device 1 when the secondary support 24 deforms, reduce the tilt angle of the upper structure, improve the stability of the pump tower structure connection, and, in conjunction with the inclined positioning pin 3, reduce the compression of the positioning pin 3 and the positioning seat 2 during the deformation of the secondary support 24, thus improving the stability of the connection between the positioning seat 2 and the positioning pin 2.

[0032] Example 2

[0033] like Figure 5 As shown, the difference between this embodiment and Embodiment 1 is that the main anchor plate 7 is fixed to the periphery of the secondary support 24, and the platform steel plate 13 is directly used as the secondary anchor plate 8. The four secondary anchor plates 8 are integrally connected (for example, the four secondary anchor plates 8 can form a disc-shaped or square structure). The secondary anchor plates 8 (i.e., the platform steel plate 13) are fixed to the top of the main support leg 16. Thus, the secondary shielding layer can be directly supported by the main support 25. Figure 6 As shown, the limiting device 1 is welded and fixed to the four secondary supports 24.

[0034] The implementation principle of Example 2 is as follows: reduce the number of welds, and directly weld and fix the secondary anchor plate 8 to the main support leg 16. Supported by a single main support 25, the layer difference between the main and secondary corrugated plates 10 can be reduced, the sealing performance of the membrane tank can be improved, the tilt angle of the upper structure can be reduced, and the connection of the pump tower structure can be improved. The secondary support 24 is set inside, which reduces the temperature difference between the upper and lower parts of the secondary support 24 and improves the stability of the fixation of the secondary support 24.

[0035] Example 3

[0036] The embodiment differs from the embodiment 2 in that the positioning seat 2 and the positioning pin 3 are cancelled, and the platform steel plate 13 is directly welded with the limiting device 1 by the secondary support 24.

[0037] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A cryogenic thin-film storage tank pump tower base device, characterized in that: It includes a limiting device (1) and a main support (25). The main support (25) is provided with a plurality of secondary supports (24). The limiting device (1) is provided on the plurality of secondary supports (24). The secondary supports (24) are provided with a main anchor plate (7) and a secondary anchor plate (8). The main anchor plate (7) and the secondary anchor plate (8) are respectively connected to a main corrugated plate (9) and a secondary corrugated plate (10) on their periphery.

2. The cryogenic thin-film storage tank pump tower base device according to claim 1, characterized in that: The main support (25) is composed of a main support leg (16) and a platform steel plate (13) on its top. The main support (25) is filled with a first heat insulation cotton (17). The secondary support (24) is composed of a secondary support leg (11) and a support column (4). The secondary support leg (11) is located between the secondary anchor plate (8) and the platform steel plate (13). The support column (4) is located on the secondary anchor plate (8). The main anchor plate (7) is located around the support column (4). Several polyurethane blocks (15) are filled between the platform steel plate (13) and the secondary anchor plate (8). An upper plywood (12) is provided on the polyurethane block (15).

3. The cryogenic film storage tank pump tower base device according to claim 2, characterized in that: The limiting device (1) has several positioning seats (2) at its bottom. The positioning seats (2) have positioning holes (19) that are inserted into the support column (4). The positioning seats (2) have positioning pins (3) inserted into them. The positioning pins (3) pass through the positioning seats (2). The positioning pins (3) have locking rods inserted into them.

4. The cryogenic film storage tank pump tower base device according to claim 3, characterized in that: A gap (22) is formed between the positioning hole (19) and the outer wall of the support column (4), and the positioning pin (3) is inclined along the length direction of the secondary support (24) toward the center position of the secondary support (24).

5. The cryogenic film storage tank pump tower base device according to claim 2, characterized in that: A first cavity (6) is formed between adjacent polyurethane blocks (15), and a second cavity (5) is formed between adjacent upper plywood (12).

6. The cryogenic film storage tank pump tower base device according to claim 5, characterized in that: The platform steel plate (13) has an integrally formed limiting plate (27) on its periphery, and the polyurethane block (15) has a limiting groove (14) that is inserted and matched with the limiting plate (27).

7. The cryogenic film storage tank pump tower base device according to claim 1, characterized in that: The main anchor plate (7) and the main corrugated plate (9) constitute the main shielding layer, and the secondary anchor plate (8) and the secondary corrugated plate (10) constitute the secondary shielding layer. A shielding cavity is formed between the main shielding layer and the secondary shielding layer. A main plywood (21) is provided in the shielding cavity. Multiple corrugations (20) for deformation are formed on both the main corrugated plate (9) and the secondary corrugated plate (10). Corrugated cavities (26) are formed at the corrugations (20) of the main corrugated plate (9) and the secondary corrugated plate (10).

8. The cryogenic film storage tank pump tower base device according to claim 3, characterized in that: The positioning hole (19) is an elliptical hole, and the major axis of the elliptical hole is inclined along the secondary support (24) toward the center of the secondary support (24). The positioning pin (3) is arranged along the major axis of the elliptical hole, and the side wall of the support column (4) abuts against the minor axis side wall of the elliptical hole.

9. The cryogenic thin-film storage tank pump tower base device according to claim 1, characterized in that: The main anchor plate (7) is disposed on the periphery of the secondary support (24), the secondary anchor plate (8) is fixed to the top of the main support leg (16), and the secondary anchor plate (8) is located at the bottom of the secondary support (24).

10. The cryogenic thin-film storage tank pump tower base device according to claim 9, characterized in that: The limiting device (1) is welded and fixed to several of the secondary supports (24).

Images