Pump tower device of large low-temperature liquefied gas container

Abstract

The embodiment of the invention provides a pump tower device of a large low-temperature liquefied gas container, and relates to the technical field of pump towers. The pump tower device of the large low-temperature liquefied gas container comprises a liquid outlet pump pipe, three liquid inlet pump pipes are arranged on the outer circumference of the liquid outlet pump pipe, the liquid outlet pump pipe and the liquid inlet pump pipes are distributed in a delta shape, a pump tower base is installed at the bottom of the liquid outlet pump pipe, a plurality of crawling ladders are distributed on the liquid outlet pump pipe in a circumferential rotating mode, and the crawling ladders are connected with the liquid outlet pump pipe. A treading platform is arranged at the upper end of the crawling ladder, and a plurality of hoop mechanisms are arranged on the liquid outlet pump pipe and the liquid inlet pump pipe at equal intervals. According to the device, the three liquid inlet pump pipes are distributed in the shape like the Chinese character'pin 'around the liquid outlet pump pipe, due to the structure, force distribution among the pipelines is more reasonable, the overall structural strength is improved, the crawling ladders are distributed in a 120-degree circumferential rotation mode, the middle of each section of stair is a shrinkage stress point, stress can be dispersed, and damage to the structure caused by stress concentration is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of pump towers, and in particular to a pump tower device for a large cryogenic liquefied gas container. Background Art

[0002] The pump tower device of cryogenic liquefied gas containers (such as liquid nitrogen, liquid oxygen, liquefied natural gas / LNG storage tanks, etc.) is a key equipment used to extract and transport cryogenic liquefied gas from the inside of the container. It is usually integrated inside or outside the storage tank and realizes the pressurization, transportation or circulation of liquefied gas through the pump system.

[0003] In the prior art (Announcement No. CN115839477A, ​​named as a pump tower device for liquefied natural gas storage tank), it includes a pump liquid pipe, a liquid inlet pipe, a measuring pipe, a pump liquid pipe sleeve support, a liquid inlet pipe sleeve support, a measuring liquid pipe sleeve support, a ladder, a guide connector and a pump tower base. The pump liquid pipe, the liquid inlet pipe and the measuring liquid pipe are arranged vertically and parallelly; the pump liquid pipe sleeve support is sleeved on the outer surface of the pump liquid pipe; the liquid inlet pipe sleeve support is sleeved on the outer surface of the liquid inlet pipe; the measuring liquid pipe sleeve support is sleeved on the outer surface of the measuring liquid pipe; the ladder is installed on the outside of the liquid inlet pipe and the measuring liquid pipe, and is fixedly installed with the guide connector. The invention can effectively limit the vibration influence of the pump liquid pipe through the pump tower base, and avoid the stress concentration phenomenon caused by the cold shrinkage effect of the pipeline; the verticality requirements of the three liquid pipes are fixed by the guide connector, the telescopic guide function of the pipeline is guaranteed, the accuracy of the pipeline installation is improved, the installation accuracy of the pump tower device is guaranteed, and the installation and fixing of the ladder is convenient.

[0004] The above-mentioned pump tower has ladders, liquid inlet pipes and liquid measuring pipes all arranged on one side of the pump liquid pipe, resulting in uneven mass distribution of the pump pipe. The inertia of the pump tower causes great damage to the joints when it shakes, and the overall structural strength is insufficient to withstand the pressure and stress under complex working conditions. During long-term operation, due to uneven force, the pipeline joints are prone to loosening, rupture and other problems, which greatly affects the transportation efficiency and safety of liquefied gas. Summary of the invention

[0005] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a pump tower device for a large cryogenic liquefied gas container, which can improve the overall structural strength and ensure the long-term stable operation of the pump tower.

[0006] This application is implemented as follows: The present application provides a pump tower device for a large cryogenic liquefied gas container, comprising: a liquid outlet pump pipe, three liquid inlet pump pipes are arranged on the outer circumference of the liquid outlet pump pipe, the liquid outlet pump pipe and the liquid inlet pump pipe are distributed in a triangular shape, pipe sleeve supports are installed on the upper parts of the liquid outlet pump pipe and the liquid inlet pump pipe, a pump tower base is installed on the bottom of the liquid outlet pump pipe, a plurality of ladders are distributed on the circumference of the liquid outlet pump pipe, a stepping platform is arranged on the upper end of the ladder, and a plurality of clamp mechanisms are equidistantly arranged on the liquid outlet pump pipe and the liquid inlet pump pipe.

[0007] According to the pump tower device of a large cryogenic liquefied gas container in an embodiment of the present application, the ladder includes a ladder body, the ladder body is fixedly mounted on a liquid outlet pump pipe, and a protective frame is fixedly mounted on one side of the ladder body.

[0008] According to the pump tower device of a large cryogenic liquefied gas container in an embodiment of the present application, the stepping platform is arranged at the upper end of the protective frame and is fixedly connected to the liquid outlet pump pipe, and a guardrail is fixedly installed at the upper edge of the stepping platform.

[0009] According to the pump tower device of a large cryogenic liquefied gas container in the embodiment of the present application, the clamp mechanism includes a liquid outlet pipe clamp, the liquid outlet pipe clamp is fixedly installed on the liquid outlet pump pipe, a support rod is fixedly connected to the outer peripheral surface of the liquid outlet pipe clamp, and a plurality of reinforcing ribs are arranged on the support rod.

[0010] According to the pump tower device of a large cryogenic liquefied gas container in an embodiment of the present application, one end of the support rod away from the liquid outlet pipe clamp is fixedly connected to a liquid inlet pipe clamp, and the liquid inlet pipe clamp is installed on the liquid inlet pump pipe.

[0011] According to the pump tower device of a large cryogenic liquefied gas container in the embodiment of the present application, a diagonal support mechanism is also provided on the liquid outlet pump pipe, and the diagonal support mechanism includes a rotating assembly and a guide block. The rotating assembly is arranged below the liquid outlet pipe clamp, and a limiting assembly is arranged on the rotating assembly. The guide block is circumferentially arranged on the liquid outlet pump pipe, and a diagonal support rod is rotatably arranged in the guide block. The end of the diagonal support rod away from the guide block is fixedly connected to a support plate, and the inner wall of the support plate abuts against the liquid inlet pump pipe.

[0012] According to the pump tower device of a large cryogenic liquefied gas container in an embodiment of the present application, the rotating assembly includes a sleeve, a hand wheel is fixedly connected to the outer circumferential surface of the sleeve, and a threaded groove is provided on the inner wall of the sleeve.

[0013] According to the pump tower device of a large cryogenic liquefied gas container in the embodiment of the present application, a slider is slidably connected in the guide block, a lifting block is fixedly connected to the upper end of the slider, the lifting block is threadedly matched with the thread groove, a rack is fixedly installed on one side of the slider, a gear is meshed with the rack, and the gear is arranged at one end of the diagonal support rod.

[0014] According to the pump tower device of a large cryogenic liquefied gas container in the embodiment of the present application, the gear is rotatably mounted on the rotating shaft, the rotating shaft is fixedly mounted on the guide block, the bottom of the guide block is fixedly mounted on the mounting ring, and the mounting ring is fixedly sleeved on the liquid outlet pump pipe.

[0015] According to the pump tower device of a large cryogenic liquefied gas container in the embodiment of the present application, the limiting assembly includes a fixed block, the fixed block is fixedly mounted on a sleeve, a movable rod is penetrated by the fixed block, a spring is sleeved on the movable rod, the two ends of the movable rod are respectively fixedly connected to a limiting plug block and a shift rod, the shift rod abuts against one side of the fixed block, the two ends of the spring are respectively fixedly connected to the fixed block and the limiting plug block, and the limiting plug block is inserted into the reinforcing rib.

[0016] Beneficial effects of the present invention: 1. The present invention arranges three inlet pump pipes around the outlet pump pipe in a herringbone shape. This structure makes the force distribution between the pipes more reasonable, improves the overall structural strength, and the pipe sleeve support and pump tower base ensure the stable installation and operation of the pipeline.

[0017] 2. The ladder of the present invention is distributed in a circular rotation of 120 degrees, with three being the best as a cycle, and can also be arranged in multiples of non-three. Liquefied gas is stored in the tank, the temperature is minus 163 degrees, the metal shrinks, and the middle of each section of the stairs is a shrinkage stress point, which is conducive to dispersing stress and avoiding damage to the structure due to stress concentration. In addition, the height of each section of the stairs is lower than that of traditional ladders, which is conducive to reducing the injuries to personnel when people slip. The protective frame is fixed to one side of the ladder body to play a protective role and prevent people from falling from the side. The stepping platform provides a safe stop and operation space for personnel, and the guardrail can prevent people from falling from the platform.

[0018] 3. The present invention connects the outlet pump pipe and the inlet pump pipe together through a clamp mechanism, thereby enhancing the overall stability. Reinforcing ribs are arranged on the support rod to enhance the structural strength. The clamp connected to the outlet pump pipe is in a locked state. There is a gap between the clamp connected to the inlet pump pipe and the inlet pump pipe, which can adapt to the expansion and contraction of the pipeline due to factors such as temperature changes, and avoid damage to the pipeline due to excessive constraints.

[0019] 4. The present invention supports the liquid inlet pump pipe from the inside through the diagonal support rods in the diagonal support mechanism, further strengthening the strength of the overall structure of the pump tower, and fixes the position of the diagonal support rods through the limit assembly to ensure that the diagonal support rods will not rotate at will during operation, thereby ensuring the supporting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 is a schematic diagram of a three-dimensional assembly of the overall structure according to an embodiment of the present application; Figure 2 is a schematic diagram of a top view structure according to an embodiment of the present application; Figure 3 is a schematic diagram of the distribution of the liquid outlet pump pipe and the liquid inlet pump pipe according to an embodiment of the present application; Figure 4 It is a schematic diagram of the three-dimensional structure of the ladder and the stepping platform according to an embodiment of the present application; Figure 5 is a schematic diagram of the three-dimensional structure of a clamp mechanism according to an embodiment of the present application; Figure 6 is a schematic diagram of a three-dimensional assembly of a diagonal bracing mechanism and a clamping mechanism according to an embodiment of the present application; Figure 7 It is a schematic diagram of the three-dimensional structure of the diagonal bracing mechanism and the clamping mechanism according to an embodiment of the present application; Figure 8 is a partial cross-sectional view of a diagonal bracing mechanism according to an embodiment of the present application; Fig. 9 This is an exploded view of the diagonal bracing mechanism and the clamping mechanism according to an embodiment of the present application; Fig.10 According to the embodiment of the present application Figure 8 A magnified view of the structure in the middle.

[0022] In the figure: 11. Liquid outlet pump pipe; 12. Liquid inlet pump pipe; 13. Pipe sleeve support; 14. Pump tower base; 2. Diagonal support mechanism; 21. Rotating assembly; 211. Sleeve; 212. Hand wheel; 213. Threaded groove; 214. Lifting block; 215. Sliding block; 216. Rack; 22. Limiting assembly; 221. Fixed block; 222. Movable rod; 223. Push rod; 224. Spring; 225. Limiting assembly 1. Position block; 23. Guide block; 231. Mounting ring; 24. Diagonal support rod; 241. Gear; 242. Rotating shaft; 25. Support plate; 3. Ladder; 31. Ladder body; 32. Protective frame; 4. Stepping platform; 41. Guardrail; 5. Clamp mechanism; 51. Liquid outlet pipe clamp; 52. Support rod; 521. Reinforcement rib; 53. Liquid inlet pipe clamp; 6. Reinforced diagonal support; 7. Stabilizing diagonal support. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0024] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0025] Embodiment 1:

[0026] like Figure 1-Figure 5 As shown, according to an embodiment of the present application, a pump tower device for a large cryogenic liquefied gas container includes a liquid outlet pump pipe 11, three liquid inlet pump pipes 12 are arranged on the outer circumference of the liquid outlet pump pipe 11, the liquid outlet pump pipe 11 and the liquid inlet pump pipe 12 are distributed in a triangular shape, and pipe sleeve supports 13 are installed on the upper parts of the liquid outlet pump pipe 11 and the liquid inlet pump pipe 12, a pump tower base 14 is installed on the bottom of the liquid outlet pump pipe 11, a plurality of ladders 3 are distributed in a circular rotation on the liquid outlet pump pipe 11, a stepping platform 4 is arranged on the upper end of the ladder 3, and a plurality of clamp mechanisms 5 are equidistantly arranged on the liquid outlet pump pipe 11 and the liquid inlet pump pipe 12.

[0027] like Figure 1 and Figure 4 As shown, a plurality of stabilizing braces 7 are welded to the bottom of the pedaling platform 4, and the surface of the stabilizing braces 7 is connected to the surface of the liquid outlet pump pipe 11, so that the liquid outlet pump pipe 11 and the stabilizing braces 7 are used to increase the stability of the pedaling platform 4.

[0028] The three inlet pump pipes 12 are distributed in a triangular shape around the outlet pump pipe 11. This structure makes the force distribution between the pipes more reasonable and improves the overall structural strength. The pipe sleeve support 13 is installed on the upper part of the outlet pump pipe 11 and the inlet pump pipe 12 to support and fix. The pump tower base 14 is installed at the bottom of the outlet pump pipe 11 to provide basic support. The pipe sleeve support 13 and the pump tower base 14 ensure the stable installation and operation of the pipeline.

[0029] The ladder 3 comprises a ladder body 31 , which is fixedly mounted on the liquid outlet pump pipe 11 , and a protective frame 32 is fixedly mounted on one side of the ladder body 31 .

[0030] The ladder body 31 is fixedly installed on the liquid outlet pump pipe 11, and people can climb through the ladder body 31. The protective frame 32 is fixed on one side of the ladder body 31 to play a protective role to prevent people from falling from the side. The ladder 3 is distributed in a circular rotation of 120 degrees, and every three is the best cycle. It can also be arranged in multiples of three. Liquefied gas is stored in the tank, the temperature is minus 163 degrees, and the metal shrinks. The middle of each section of the stairs is the shrinkage stress point, which is conducive to dispersing stress and avoiding damage to the structure due to stress concentration. In the specific setting, the height of each section of the stairs is lower than that of the traditional ladder 3. When a person slips, it is helpful to reduce the damage to the person.

[0031] The stepping platform 4 is arranged at the upper end of the protection frame 32 and is fixedly connected to the liquid outlet pump pipe 11 . A guardrail 41 is fixedly installed at the upper edge of the stepping platform 4 .

[0032] The stepping platform 4 provides a safe stopping and operating space for personnel, and a guardrail 41 is installed at the upper edge of the stepping platform 4 to prevent personnel from falling from the platform, thereby further ensuring the safety of personnel on the platform.

[0033] The clamp mechanism 5 includes a liquid outlet pipe clamp 51, which is fixedly installed on the liquid outlet pump pipe 11. A support rod 52 is fixedly connected to the outer peripheral surface of the liquid outlet pipe clamp 51. A plurality of reinforcing ribs 521 are provided on the support rod 52. An end of the support rod 52 away from the liquid outlet pipe clamp 51 is fixedly connected to a liquid inlet pipe clamp 53, and the liquid inlet pipe clamp 53 is installed on the liquid inlet pump pipe 12.

[0034] The clamp mechanism 5 connects the liquid outlet pump pipe 11 and the liquid inlet pump pipe 12 together, thereby enhancing the overall stability. A reinforcing rib 521 is arranged on the support rod 52 to enhance the structural strength. The liquid inlet pump pipe 12 and the liquid inlet pipe clamp 53 are connected with a gap. The liquid inlet pipe clamp 53 only limits the horizontal plane displacement. The liquid outlet pipe clamp 51 and the liquid outlet pump pipe 11 are fixedly connected, and can adapt to the expansion and contraction of the pipeline due to factors such as temperature changes, thereby avoiding damage to the pipeline due to excessive constraints.

[0035] like Figure 1 As shown, the surface of the liquid inlet pipe clamp 53 is provided with a reinforcing diagonal brace 6, and there are multiple reinforcing diagonal braces 6, which are staggered on the surfaces of the liquid outlet pump pipe 11 and the liquid inlet pump pipe 12, and the reinforcing diagonal brace 6 is used to increase the strength between the multiple liquid inlet pipe clamps 53, the support rods 52 and the liquid outlet pipe clamp 51.

[0036] Embodiment 2:

[0037] In order to further improve the strength and stability of the connection between the clamp mechanism 5 and the liquid outlet pump pipe 11 and the liquid inlet pump pipe 12, a diagonal support mechanism 2 is provided at the bottom of the clamp mechanism 5. The diagonal support rods 24 in the diagonal support mechanism 2 support the liquid inlet pump pipe 12 from the inside, thereby further strengthening the strength of the overall structure of the pump tower.

[0038] like Figure 6-Figure 10 As shown, a diagonal support mechanism 2 is also provided on the liquid outlet pump pipe 11, and the diagonal support mechanism 2 includes a rotating component 21 and a guide block 23. The rotating component 21 is arranged below the liquid outlet pipe clamp 51, and a limiting component 22 is arranged on the rotating component 21. The guide block 23 is circumferentially arranged on the liquid outlet pump pipe 11, and a diagonal support rod 24 is rotatably arranged in the guide block 23. The end of the diagonal support rod 24 away from the guide block 23 is fixedly connected to a support sheet 25, and the inner wall of the support sheet 25 abuts against the liquid inlet pump pipe 12.

[0039] Among them, the rotating component 21 is sleeved on the liquid outlet pump pipe 11, and can simultaneously drive several diagonal support rods 24 to prop up or retract. The limiting component 22 is used to limit the rotating component 21, so that the position of the diagonal support rods 24 is fixed. The supporting piece 25 is arc-shaped and fits the outer peripheral surface of the liquid inlet pump pipe 12 to support the liquid inlet pump pipe 12 from the inside.

[0040] The rotating assembly 21 includes a sleeve 211, a hand wheel 212 is fixedly connected to the outer circumference of the sleeve 211, a threaded groove 213 is provided on the inner wall of the sleeve 211, a slider 215 is slidably connected in the guide block 23, a lifting block 214 is fixedly connected to the upper end of the slider 215, the lifting block 214 is threadedly matched with the threaded groove 213, a rack 216 is fixedly installed on one side of the slider 215, a gear 241 is meshed and connected to the rack 216, the gear 241 is provided at one end of the diagonal support rod 24, the gear 241 is rotatably installed on the rotating shaft 242, the rotating shaft 242 is fixedly installed on the guide block 23, the bottom of the guide block 23 is fixedly installed on the mounting ring 231, and the mounting ring 231 is fixedly sleeved on the liquid discharge pump pipe 11.

[0041] By turning the hand wheel 212, the sleeve 211 is driven to rotate, and the threaded groove 213 on the inner wall of the sleeve 211 is threadedly matched with the lifting block 214, so that the lifting block 214 drives the slider 215 to slide in the guide block 23, and the rack 216 on one side of the slider 215 is meshed with the gear 241, thereby driving the diagonal support rod 24 to rotate around the rotating shaft 242, so that a plurality of diagonal support rods 24 are opened outward at the same time, thereby improving the operating efficiency, and the diagonal support rod 24 drives the support sheet 25 to rotate synchronously, thereby strengthening the support for the liquid inlet pump pipe 12.

[0042] The limiting assembly 22 includes a fixed block 221, which is fixedly mounted on the sleeve 211. A movable rod 222 is provided through the fixed block 221. A spring 224 is sleeved on the movable rod 222. Both ends of the movable rod 222 are respectively fixedly connected to a limiting plug block 225 and a lever 223. The lever 223 abuts against one side of the fixed block 221. Both ends of the spring 224 are respectively fixedly connected to the fixed block 221 and the limiting plug block 225. The limiting plug block 225 is inserted into the reinforcing rib 521.

[0043] The movable rod 222 is pulled by the lever 223 to pull the limit block 225 out from the reinforcing rib 521. After the hand wheel 212 is turned to adjust the position of the diagonal support rod 24, when the support sheet 25 abuts against the liquid inlet pump pipe 12, the limit block 225 corresponds to the position of the other reinforcing rib 521. The lever 223 is released, and the spring 224 pushes the limit block 225 to insert into the reinforcing rib 521 to fix the position of the diagonal support rod 24, ensuring that the diagonal support rod 24 will not rotate at will during the operation, thereby ensuring the supporting effect.

[0044] In summary, the working principle of a pump tower device for a large cryogenic liquefied gas container according to an embodiment of the present invention is as follows: The outlet pump pipe 11 and the inlet pump pipe 12 are distributed in a triangular shape, so that the force distribution between the pipes is more reasonable and the overall structural strength is improved. The pipe sleeve support 13 and the pump tower base 14 ensure the stable installation of the pipe. The ladder 3 is distributed in a circular rotation. People climb through the ladder 3. The stepping platform 4 provides a stopping operation space. The protective frame 32 and the guardrail 41 ensure the safety of the personnel. At the same time, the distribution of the ladder 3 is conducive to dispersing the stress caused by the contraction of low-temperature metal and reducing the damage to the connection when the pump tower shakes. The clamp mechanism 5 connects the outlet pump pipe 11 and the inlet pump pipe 12, wherein the clamp connected to the inlet pump pipe 12 has a gap to adapt to the expansion and contraction of the pipe. The diagonal brace mechanism 2 adjusts the angle and position of the diagonal brace rod 24 by turning the hand wheel 212. The diagonal brace rod 24 supports the inlet pump pipe 12 from the inside, further strengthening the strength of the overall structure of the pump tower. Finally, the position of the diagonal brace rod 24 is fixed by the limit assembly 22 to ensure that the diagonal brace rod 24 will not rotate at will during the working process, thereby ensuring the supporting effect.

[0045] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0046] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A pump tower device for a large cryogenic liquefied gas container, characterized in that: The invention comprises a liquid outlet pump pipe (11), three liquid inlet pump pipes (12) are arranged on the outer circumference of the liquid outlet pump pipe (11), the liquid outlet pump pipe (11) and the liquid inlet pump pipe (12) are arranged in a triangular shape, a pipe sleeve support (13) is installed on the upper part of the liquid outlet pump pipe (11) and the liquid inlet pump pipe (12), a pump tower base (14) is installed on the bottom of the liquid outlet pump pipe (11), a plurality of ladders (3) are arranged on the upper circumference of the liquid outlet pump pipe (11), a stepping platform (4) is arranged on the upper end of the ladder (3), and a plurality of clamp mechanisms (5) are arranged at equal intervals on the liquid outlet pump pipe (11) and the liquid inlet pump pipe (12).

2. The pump tower device for a large cryogenic liquefied gas container according to claim 1, characterized in that: The ladder (3) comprises a ladder body (31), the ladder body (31) being fixedly mounted on a liquid outlet pump pipe (11), and a protective frame (32) being fixedly mounted on one side of the ladder body (31).

3. The pump tower device for a large cryogenic liquefied gas container according to claim 2, characterized in that: The stepping platform (4) is arranged at the upper end of the protection frame (32) and is fixedly connected to the liquid outlet pump pipe (11). A guardrail (41) is fixedly installed at the upper edge of the stepping platform (4).

4. The pump tower device for a large cryogenic liquefied gas container according to claim 1, characterized in that: The clamp mechanism (5) comprises a liquid outlet pipe clamp (51), the liquid outlet pipe clamp (51) being fixedly mounted on the liquid outlet pump pipe (11), a support rod (52) being fixedly connected to the outer peripheral surface of the liquid outlet pipe clamp (51), and a plurality of reinforcing ribs (521) being provided on the support rod (52).

5. The pump tower device for a large cryogenic liquefied gas container according to claim 4, characterized in that: One end of the support rod (52) away from the liquid outlet pipe clamp (51) is fixedly connected to a liquid inlet pipe clamp (53), and the liquid inlet pipe clamp (53) is mounted on the liquid inlet pump pipe (12).

6. The pump tower device for a large cryogenic liquefied gas container according to claim 4, characterized in that: The liquid outlet pump pipe (11) is further provided with an inclined support mechanism (2), the inclined support mechanism (2) comprising a rotating assembly (21) and a guide block (23), the rotating assembly (21) being arranged below the liquid outlet pipe clamp (51), the rotating assembly (21) being provided with a limit assembly (22), the guide block (23) being circumferentially arranged on the liquid outlet pump pipe (11), an inclined support rod (24) being rotatably arranged inside the guide block (23), the end of the inclined support rod (24) away from the guide block (23) being fixedly connected to a support sheet (25), the inner wall of the support sheet (25) being in contact with the liquid inlet pump pipe (12).

7. The pump tower device for a large cryogenic liquefied gas container according to claim 6, characterized in that: The rotating assembly (21) comprises a sleeve (211), a hand wheel (212) is fixedly connected to the outer peripheral surface of the sleeve (211), and a thread groove (213) is provided on the inner wall of the sleeve (211).

8. The pump tower device for a large cryogenic liquefied gas container according to claim 7, characterized in that: A slider (215) is slidably connected inside the guide block (23); a lifting block (214) is fixedly connected to the upper end of the slider (215); the lifting block (214) is threadedly engaged with the thread groove (213); a rack (216) is fixedly mounted on one side of the slider (215); a gear (241) is meshingly connected to the rack (216); and the gear (241) is arranged at one end of the diagonal support rod (24).

9. The pump tower device for a large cryogenic liquefied gas container according to claim 8, characterized in that: The gear (241) is rotatably mounted on a rotating shaft (242), the rotating shaft (242) is fixedly mounted on a guide block (23), the bottom of the guide block (23) is fixedly mounted on a mounting ring (231), and the mounting ring (231) is fixedly sleeved on a liquid outlet pump pipe (11).

10. The pump tower device for a large cryogenic liquefied gas container according to claim 7, characterized in that: The limit assembly (22) comprises a fixed block (221), the fixed block (221) being fixedly mounted on the sleeve (211), a movable rod (222) being provided through the fixed block (221), a spring (224) being sleeved on the movable rod (222), two ends of the movable rod (222) being respectively fixedly connected to a limit plug block (225) and a shift rod (223), the shift rod (223) being in contact with one side of the fixed block (221), two ends of the spring (224) being respectively fixedly connected to the fixed block (221) and the limit plug block (225), and the limit plug block (225) being plugged into the reinforcing rib (521).

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