A crane-based cryogenic fluid filling system

Abstract

The invention discloses a low-temperature fluid filling system based on a crane, which relates to the technical field of low-temperature fluid filling. The system comprises a base, a rotating column, a main boom and an auxiliary boom. Filling devices are arranged on the main boom and the auxiliary boom. The filling devices comprise a filling pipeline and a low-temperature storage tank. The filling pipeline comprises a plurality of groups of fixed components arranged on the side wall surface of the auxiliary boom. Three conduits extending along the rotating column, the main boom and the auxiliary boom are arranged in the plurality of groups of fixed components, which are respectively a first conduit, a second conduit and a third conduit. A front filling gun is arranged at the direction where the first conduit extends toward the hook, and a rear filling gun is arranged at the direction where the second conduit extends toward the base, so that the output and input paths of the low-temperature fluid are distinguished, so that the output and input processes of the low-temperature fluid can be carried out simultaneously at the same time, thereby improving the filling speed of the low-temperature fluid.

Description

Technical Field

[0001] The invention relates to the technical field of cryogenic fluid filling, and in particular to a crane-based cryogenic fluid filling system. Background Art

[0002] With the adjustment of the global energy structure and the widespread application of clean energy, cryogenic fluids such as liquefied natural gas (LNG) and cryogenic ethylene play an increasingly important role in energy transportation and storage. However, traditional cryogenic fluid filling equipment has deficiencies in functional diversity and operational flexibility, especially in the process of shipping filling, it is difficult to meet the needs of lifting heavy objects and precise filling at the same time. Therefore, the present invention aims to provide a crane-based cryogenic fluid filling system based on the patent content of application number 201320518516.6 to solve the deficiencies in the prior art and improve filling efficiency and safety. Summary of the invention

[0003] The object of the present invention is to provide a crane-based cryogenic fluid filling system to solve the problems raised in the above-mentioned background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a crane-based cryogenic fluid filling system, comprising a base, a rotating column, a main boom, and an auxiliary boom, the base being fixed to the ground, the rotating column being installed on the base through a slewing bearing, the main boom being hinged above the rotating column, and being connected to the rotating column through a horizontally arranged hinge shaft, a filling device being arranged on the main boom and the auxiliary boom, the filling device comprising a filling pipeline and a cryogenic storage tank, the filling pipeline comprising several groups of fixed components arranged on the side wall surface of the auxiliary boom, three conduits extending along the rotating column, the main boom, and the auxiliary boom being arranged in the several groups of fixed components, namely a first conduit, a second conduit, and a third conduit, a front filling gun being arranged at the direction where the first conduit extends toward the hook, and a rear filling gun being arranged at the direction where the second conduit extends toward the base.

[0005] According to the above technical solution, the front-loading gun includes a first barrel with a bearing installed at the front end of a first conduit, a retractable pipe structure is arranged in the first barrel, and the retractable pipe structure is divided into two retractable parts. The first retractable part includes a track arranged on the inner wall of the first barrel, and the second barrel is slidably connected on the track. The top pipe of the second barrel is sealed and connected to the first retractable pipe structure. The second retractable part includes a second retractable pipe structure with a pipe seal arranged at the end of the second barrel, and a first cryogenic liquid pump is arranged inside the second barrel.

[0006] According to the above technical solution, the post-filling gun includes a transfer bin fixedly mounted on the side wall of the base, and a pressure relief port is arranged on the top of the transfer bin.

[0007] According to the above technical solution, three groups of medium conveying components are arranged on the side wall of the transfer bin, and each group of medium conveying components includes an extension pipe, and the top of the extension pipe is connected to a detachable pipe nozzle.

[0008] According to the above technical solution, a second cryogenic liquid pump is arranged at the connection area between the second conduit and the transfer chamber, and a third cryogenic liquid pump is arranged at the rear end of the third conduit.

[0009] According to the above technical solution, the fixing component also includes a centralized bin fixedly installed on the side wall of the auxiliary boom, a reinforcement block fixedly installed on the side wall of the centralized bin, a shell fixedly installed on the side wall of the reinforcement block, a support rod fixedly installed on the side wall of the reinforcement block, a limit sleeve fixedly installed on the end of the support rod, and the first conduit, the second conduit, and the third conduit are installed in the limit sleeve.

[0010] According to the above technical solution, three fourth conduits are extended from the side of the centralized warehouse, and the three fourth conduits correspond to the first conduit, the second conduit, and the third conduit respectively. The fourth conduit extends through the reinforcement block and the limit sleeve and enters the first conduit, the second conduit, and the third conduit, and a first micro valve is arranged on the fourth conduit in the first conduit, the second conduit, and the third conduit.

[0011] According to the above technical solution, electrically controlled valves are arranged on the first conduit, the second conduit and the third conduit on both sides of the fixed component.

[0012] According to the above technical solution, a fifth conduit is arranged at the bottom of the centralized warehouse, a second microvalve is arranged at the connection between the fifth conduit and the centralized warehouse, the fifth conduit is connected to the low-temperature storage tank by a pipeline, a sixth conduit is also arranged at the bottom of the centralized warehouse, a third microvalve is arranged at the connection between the sixth conduit and the centralized warehouse, the sixth conduit extends into the interior of the low-temperature storage tank, and is connected to a fourth low-temperature liquid pump in the low-temperature storage tank.

[0013] According to the above technical solution, a temperature detection sensor and a cooling structure are arranged in the cryogenic storage tank. The temperature detection sensors are arranged on the inner wall of the cryogenic storage tank from top to bottom. The cryogenic storage tanks are arranged under the auxiliary boom from left to right. Each cryogenic storage tank corresponds to a fixed component.

[0014] Compared with the prior art, the beneficial effect achieved by the present invention is that: the present invention, by setting the first conduit and the second conduit, separates the output and input paths of the cryogenic fluid, so that the output and input processes of the cryogenic fluid can be carried out simultaneously at the same time, thereby improving the filling speed of the cryogenic fluid. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall front three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the structure of the fixing assembly of the present invention; Figure 3 It is a schematic diagram of the structure of the cryogenic storage tank of the present invention; Figure 4 is a schematic diagram of the electric control valve and the fixing assembly of the present invention; Figure 5 It is a schematic diagram of the structure of the front filling gun of the present invention; Figure 6 is a schematic diagram of a second cryogenic liquid pump and a third cryogenic liquid pump of the present invention; Figure 7 The present invention Figure 1 A schematic diagram of the enlarged structure of the middle A area; In the figure: 1, base; 2, rotating column; 3, main boom; 4, auxiliary boom; 5, filling device; 6, cryogenic storage tank; 7, sixth conduit; 8, filling pipeline; 9, third micro valve; 10, fixing assembly; 11, first conduit; 12, second conduit; 13, third conduit; 14, front filling gun; 15, rear filling gun; 16, first barrel; 17, track; 18, second barrel; 19, first telescopic pipeline structure; 20, second telescopic pipeline structure; 21, first cryogenic liquid Body pump; 22, transfer chamber; 23, medium conveying assembly; 24, extension pipe; 25, nozzle; 26, second cryogenic liquid pump; 27, third cryogenic liquid pump; 28, pressure relief port; 29, centralized chamber; 30, reinforcement block; 31, shell; 32, support rod; 33, limit sleeve; 34, fourth conduit; 35, first microvalve; 36, electric control valve; 37, fifth conduit; 38, second microvalve; 39, temperature detection sensor; 40, cooling structure; 41, fourth cryogenic liquid pump. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1-7 The present invention provides a technical solution: a crane-based cryogenic fluid filling system, including a hose crane. In this embodiment, the hose crane is an existing device and will not be described in detail. The crane lifting function and the cryogenic fluid filling function are integrated into one, thereby improving the utilization rate of the equipment and the convenience of operation; The hose crane includes a base 1 and a rotating column 2. The base 1 is fixed to the ground, and the rotating column 2 is installed on the base 1 through a slewing bearing, which can realize 360-degree rotation in the horizontal direction to meet the filling needs in different directions; The hose crane also includes a main boom 3 and an auxiliary boom 4. The main boom 3 is hinged above the rotating column 2 and connected to the rotating column 2 through a horizontally arranged hinge shaft to achieve the up and down lifting function. The auxiliary boom 4 is hinged at the front end of the main boom 3 to further enhance the flexibility and stability of lifting. A hydraulic winch is arranged at the front end of the auxiliary boom 4, which is connected to the hook through a sling and a fixed pulley to achieve the lifting and suspension of heavy objects. Through the synergistic effect of the rotating column 2 and the main and auxiliary booms, the filling equipment is flexibly operated in space to meet the needs of different filling positions. The hose crane also includes a filling device 5 for cryogenic fluid. The filling device 5 includes a cryogenic storage tank 6, a cryogenic liquid pump, a filling pipeline 8 and a control system. The cryogenic storage tank 6 is used to store the cryogenic fluid to be filled. After the cryogenic storage tank 6 detects the cryogenic fluid to be filled, the filling process continues. The cryogenic liquid pump transports the cryogenic fluid to the filling gun through the filling pipeline 8. The control system is responsible for monitoring and adjusting various parameters in the filling process to ensure the accuracy and safety of the filling.

[0018] The hose crane also includes a pipe steering mechanism, which is a prior art structure used to achieve flexible operation of the filling equipment in a complex space, including horizontal and vertical rotating joints and bending pipe assemblies. The mechanism enables the filling pipeline 8 to rotate and bend in the horizontal and vertical directions to adapt to the needs of different filling positions.

[0019] The hose crane also includes a safety system. To ensure safety during the filling process, the system is equipped with safety devices such as an emergency break valve, a safety valve and a bursting disc. The emergency break valve can quickly separate the hose from the tanker under special circumstances to prevent the accident from expanding. Safety devices such as the emergency break valve, safety valve and bursting disc are all existing technical structures and will not be elaborated here.

[0020] When in use, first dock the ship to be refueled at the designated position, and aim the filling gun at the filling port by adjusting the rotating column 2, the main boom 3, and the auxiliary boom 4. Then, start the cryogenic liquid pump, and transport the cryogenic fluid to the filling gun through the filling pipeline 8 to start the filling operation. During the filling process, the control system monitors parameters such as fluid pressure, flow and temperature in real time to ensure the accuracy and safety of the filling. After the filling is completed, the cryogenic liquid pump is turned off by the control system, and the filling gun is retracted to a safe position.

[0021] The filling pipeline 8 includes a plurality of fixed components 10 arranged on the side wall of the auxiliary boom 4. Three conduits extending along the rotating column 2, the main boom 3 and the auxiliary boom 4 are arranged in the fixed component 10, which are the first conduit 11, the second conduit 12 and the third conduit 13. The front ends of the first conduit 11, the second conduit 12 and the third conduit 13 are all bent toward the ground, which is convenient for extracting and transporting the cryogenic fluid in the cabin. At the same time, the vertical downward structure is convenient for automatic discharge of the cryogenic fluid to avoid accumulation of the cryogenic fluid in the first conduit 11, the second conduit 12 and the third conduit 13. A front filling gun 14 is arranged at the direction where the first conduit 11 extends toward the hook, and a rear filling gun 15 is arranged at the direction where the second conduit 12 extends toward the base 1; The front filling gun 14 includes a first barrel 16 with a bearing installed at the front end of the first guide tube 11, a retractable pipeline structure is arranged in the first barrel 16, and the retractable pipeline structure is divided into two retractable parts. The first retractable part includes a track 17 arranged on the inner wall of the first barrel 16, and the second barrel 18 is slidably connected to the track 17. The top pipeline of the second barrel 18 is sealed and connected to the first retractable pipeline structure 19. The second barrel 18 is sealed and connected to the first guide tube 11 through the first retractable pipeline structure 19. The second retractable part includes a second retractable pipeline structure 20 with a pipeline seal arranged at the end of the second barrel 18. A first cryogenic liquid pump 21 is arranged inside the second barrel 18. The start and stop of the first cryogenic liquid pump 21 are regulated by the control system. The second telescopic pipe structure 20 is placed into the cryogenic fluid storage structure in the cabin. At this time, the height of the second barrel 18 can be controlled by the control system according to the position of the cabin, so that the connection between the second barrel 18 and the second telescopic pipe structure 20 is in a non-bent state as much as possible, in order to avoid the cryogenic fluid from impacting the connection between the second barrel 18 and the second telescopic pipe structure 20 and prolonging the service life of the second telescopic pipe structure 20. The cryogenic fluid in the cabin is pumped into the second telescopic pipe structure 20 by the first cryogenic liquid pump 21, enters the second barrel 18 through the second telescopic pipe structure 20, and then enters the first conduit 11 through the first telescopic pipe structure 19, completing the first step of filling the cryogenic fluid and pumping the cryogenic fluid out of the cabin; The rear filling gun 15 includes a transfer chamber 22 fixedly mounted on the side wall of the base 1, the first conduit 11, the second conduit 12, and the third conduit 13 all extend into the transfer chamber 22, and a pressure relief port 28 is arranged on the top of the transfer chamber 22. The function of the pressure relief port 28 is to discharge the gas in the transfer chamber 22 when the medium enters the transfer chamber 22, so as to maintain a relatively sealed environment in the transfer chamber 22. A second cryogenic liquid pump 26 is arranged at the connection area between the second conduit 12 and the transfer chamber 22. The start and stop of the second cryogenic liquid pump 26 are all controlled by the control system. The warm liquid pump 26 transports the cryogenic fluid medium in the transfer bin 22 to the second conduit 12, and then transports it to the cabin through the second conduit 12. Three groups of medium conveying components 23 are arranged on the side wall of the transfer bin 22. Each group of medium conveying components 23 includes an extension pipe 24. The top of the extension pipe 24 is connected to a detachable pipe nozzle 25. Different specifications of nozzles 25 are selected according to the specifications of the cryogenic fluid transfer vehicle. The matching nozzles 25 can be installed. Compared with the previous process of replacing the entire filling pipeline 8, the advantages are high efficiency and fast filling speed. The first conduit 11 and the second conduit 12 are provided to separate the output and input paths of the cryogenic fluid, so that the output and input processes of the cryogenic fluid can be carried out simultaneously at the same time, thereby increasing the filling speed of the cryogenic fluid; Among the three groups of medium conveying components 23, one group of medium conveying components 23 is used to extract the cryogenic fluid in the cryogenic fluid transfer vehicle, one group of medium conveying components 23 is used to convey the cryogenic fluid to the cryogenic fluid transfer vehicle, and the last group of medium conveying components 23 is connected to an external cleaning tank, and the clean liquid medium filled in the cleaning tank is conveyed to the transfer warehouse 22 through a pump machine arranged in the cleaning tank. When the cryogenic fluid in the cryogenic fluid transfer vehicle needs to be conveyed to the cabin, it is necessary to manually connect the pipeline on the cryogenic fluid transfer vehicle with the nozzle 25, so that the cryogenic fluid on the cryogenic fluid transfer vehicle is conveyed to the transfer warehouse 22, and the transfer warehouse 22 is filled. After the transfer warehouse 22 is fully loaded, the control system drives The rear filling gun 15 is running to deliver the cryogenic fluid in the transfer bin 22 to the cabin. The control system sets the delivery volume of the cryogenic fluid on the cryogenic fluid transfer vehicle to the transfer bin 22 to P1, and sets the delivery volume of the cryogenic fluid in the transfer bin 22 to the cabin to P2. In the process of delivering the cryogenic fluid from the cryogenic fluid transfer vehicle to the cabin, the control system needs to maintain P1=P2, so that the transfer bin 22 is always fully loaded, so that no gas flows with the cryogenic fluid in the process of being delivered to the cabin. If there is a large amount of gas mixed with the cryogenic fluid, it will cause the air pressure of the cryogenic fluid storage structure in the cabin to be disturbed. The cryogenic fluid transfer vehicle is provided with a matching cryogenic fluid transportation structure; When the cryogenic fluid in the cabin needs to be transported to the cryogenic fluid transfer vehicle, the pipeline on the cryogenic fluid transfer vehicle is manually connected to the nozzle 25. In this process, the cryogenic fluid in the transfer warehouse 22 is first filled up, and then the cryogenic fluid in the transfer warehouse 22 is transported to the cryogenic fluid transfer vehicle. The purpose is to avoid gas mixing with the cryogenic fluid and ensure the safety of the cryogenic fluid transfer vehicle during driving. A third cryogenic liquid pump 27 is disposed at the rear end of the third conduit 13. The start and stop of the third cryogenic liquid pump 27 are controlled by the control system. The clean liquid medium in the transfer bin 22 is transported to the third conduit 13 through the third cryogenic liquid pump 27, and then enters the cabin through the third conduit 13 to clean the cabin, so that there is no interval between the filling process of the cryogenic fluid and the cleaning process of the cabin, thereby accelerating the filling progress of the cryogenic fluid. The fixing assembly 10 also includes a centralized bin 29 fixedly mounted on the side wall of the auxiliary boom 4, a reinforcement block 30 fixedly mounted on the side wall of the centralized bin 29, a shell 31 fixedly mounted on the side wall of the reinforcement block 30, the shell 31 functions to protect the first conduit 11, the second conduit 12, and the third conduit 13, a support rod 32 fixedly mounted on the side wall of the reinforcement block 30, a limit sleeve 33 fixedly mounted on the end of the support rod 32, the first conduit 11, the second conduit 12, and the third conduit 13 are installed in the limit sleeve 33, and three fourth conduits 34 are extended from the side of the centralized bin 29, and the three fourth conduits 34 correspond to the first conduit 11, the second conduit 12, and the third conduit 13 one by one, and the fourth conduit 34 extends through the reinforcement block 30, the limiting sleeve 33 enters the first conduit 11, the second conduit 12, and the third conduit 13, and a first micro valve 35 is arranged on the fourth conduit 34 in the first conduit 11, the second conduit 12, and the third conduit 13, and the first conduit 11, the second conduit 12, and the third conduit 13 on both sides of the fixing component 10 are provided with an electric control valve 36, a fifth conduit 37 is arranged at the bottom of the centralized warehouse 29, and a second micro valve 38 is arranged at the connection between the fifth conduit 37 and the centralized warehouse 29, and the fifth conduit 37 is connected to the low-temperature storage tank 6 by a pipeline, and a temperature detection sensor 39 and a cooling structure 40 are arranged in the low-temperature storage tank 6, and the temperature detection sensor 39 is arranged on the inner wall of the low-temperature storage tank 6 from top to bottom. 6 are arranged from left to right under the auxiliary boom 4, each cryogenic storage tank 6 corresponds to a fixed component 10, and the cooling structure 40 is used to reduce the temperature of the cryogenic fluid in the cryogenic storage tank 6. A sixth conduit 7 is also arranged at the bottom of the centralized warehouse 29, and a third micro valve 9 is arranged at the connection between the sixth conduit 7 and the centralized warehouse 29. The start and stop of the first micro valve 35, the second micro valve 38, and the third micro valve 9 are all regulated by the control system. The sixth conduit 7 extends into the interior of the cryogenic storage tank 6, and is connected to a fourth cryogenic liquid pump 41 in the cryogenic storage tank 6. The start and stop of the fourth cryogenic liquid pump 41 are all regulated by the control system. Before the cryogenic fluid is transported, the cryogenic fluid needs to be detected. The process is that if the cryogenic fluid is transported to the cabin by the cryogenic fluid transport vehicle, the control system opens the first electrically controlled valve 36 through which the cryogenic fluid flows. At this time, the first second microvalve 38, the first microvalve 35 and the second microvalve 38 matched with the cryogenic fluid are all opened, so that the cryogenic fluid flows into the centralized warehouse 29 through the fourth conduit 34, and then flows into the fifth conduit 37 through the centralized warehouse 29, and finally enters the cryogenic storage tank 6 through the fifth conduit 37. The temperature of the inflowing cryogenic fluid is detected by the temperature detection sensor 39 in the cryogenic storage tank 6 to obtain the temperature value K1, and the rated cryogenic fluid temperature value K2 is set in the control system. After obtaining K1, the control system compares K1 with K2; If K1 is higher than K2, the control system starts the cooling structure 40 to cool the cryogenic fluid, and records the time L for cooling to the temperature value of K2, and L is divided into two levels, L1-L2, where L1 indicates that the time for the cryogenic fluid in the cryogenic storage tank 6 to cool from the temperature value of K1 to the temperature value of K2 is the shortest, and L2 indicates that the time for the cryogenic fluid in the cryogenic storage tank 6 to cool from the temperature value of K1 to the temperature value of K2 is the longest; If L is the L1 level, it means that the temperature of the cryogenic fluid is slightly high. After cooling down through the cooling structure 40 in the first cryogenic storage tank 6 on the path through which the cryogenic fluid flows, the cooled cryogenic fluid is returned to the centralized warehouse 29 through the fourth cryogenic liquid pump 41, and then transported to the second conduit 12 through the fourth conduit 34. At this time, all the electrically controlled valves 36 on the second conduit 12 are fully opened to allow the cryogenic fluid to flow into the cabin. This process requires first filling the first cryogenic storage tank 6 with cryogenic fluid. After the first cryogenic storage tank 6 is fully loaded, the cryogenic fluid is stopped from being transported. After the cryogenic fluid in the first cryogenic storage tank 6 is completely transported to the cabin, the above process is repeated until the cryogenic fluid transportation is completed. This method of filling cryogenic fluid is suitable for transporting a small amount of cryogenic fluid. Its advantage is that it can transport cryogenic fluid with a slightly higher temperature with low energy consumption. If L is the L2 level, it means that the temperature of the cryogenic fluid is relatively high. After cooling down through the cooling structure 40 in the first cryogenic storage tank 6 on the path through which the cryogenic fluid flows, the cooled cryogenic fluid is returned to the centralized warehouse 29 through the fourth cryogenic liquid pump 41, and then transported to the second conduit 12 through the fourth conduit 34. At this time, the electric control valve 36 on the liquid inlet side of the second cryogenic storage tank 6 through which the cryogenic fluid passes is opened, and the above process is repeated until the last cryogenic storage tank 6 is in operation to complete the transportation of the cryogenic fluid. This method of filling the cryogenic fluid is suitable for the transportation of a large amount of cryogenic fluid. Its advantage is that by combining the cooling of multiple cryogenic storage tanks 6, the suspension time of filling the cryogenic fluid is reduced. The above-mentioned use method for cryogenic fluids with relatively high temperatures is also possible; The above-mentioned cryogenic fluids can maintain their liquid state at a relatively high temperature; If K1 is not higher than K2, the control system first delivers the cryogenic fluid in the cryogenic storage tank 6 to the cabin, and at the same time, the subsequent cryogenic fluid does not need to be tested and is directly delivered to the cabin; If the cryogenic fluid is transported from the ship's cabin to the cryogenic fluid transfer vehicle, the above-mentioned testing process is repeated; After the low-temperature fluid is filled, the control system drives the third low-temperature liquid pump 27 to operate, and transports the clean liquid medium in the transfer warehouse 22 to the third conduit 13. At this time, the first microvalve 35 is opened, so that the clean liquid medium in the third conduit 13 is transported to the first conduit 11 and the second conduit 12 through the centralized warehouse 29, and then the first conduit 11 and the second conduit 12 are cleaned. The cabin can also be cleaned through the first conduit 11 and the second conduit 12 without disassembling it for cleaning.

[0022] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A crane-based cryogenic fluid filling system, comprising a base (1), a rotating column (2), a main boom (3), and an auxiliary boom (4), wherein the base (1) is fixed to the ground, the rotating column (2) is mounted on the base (1) via a slewing bearing, the main boom (3) is hinged above the rotating column (2), and is connected to the rotating column (2) via a horizontally arranged hinge shaft, characterized in that: A filling device (5) is provided on the main boom (3) and the auxiliary boom (4), and the filling device (5) comprises a filling pipeline (8) and a low-temperature storage tank (6). The filling pipeline (8) comprises a plurality of groups of fixing components (10) arranged on the side wall surface of the auxiliary boom (4), and three conduits extending along the rotating column (2), the main boom (3), and the auxiliary boom (4) are arranged in the plurality of groups of fixing components (10), namely a first conduit (11), a second conduit (12), and a third conduit (13). A front filling gun (14) is provided at the direction where the first conduit (11) extends toward the hook, and a rear filling gun (15) is provided at the direction where the second conduit (12) extends toward the base (1).

2. A crane-based cryogenic fluid filling system according to claim 1, characterized in that: The front filling gun (14) includes a first barrel (16) with a bearing installed at the front end of the first guide tube (11), a retractable pipe structure is arranged inside the first barrel (16), and the retractable pipe structure is divided into two retractable parts. The first retractable part includes a track (17) arranged on the inner wall of the first barrel (16), and the track (17) is slidably connected to the second barrel (18), the top pipe of the second barrel (18) is sealed and connected to the first retractable pipe structure (19), and the second retractable part includes a second retractable pipe structure (20) with a pipe seal arranged at the end of the second barrel (18), and a first cryogenic liquid pump (21) is arranged inside the second barrel (18).

3. A crane-based cryogenic fluid filling system according to claim 2, characterized in that: The post-filling gun (15) comprises a transfer bin (22) fixedly mounted on the side wall of the base (1), and a pressure relief port (28) is provided on the top of the transfer bin (22).

4. A crane-based cryogenic fluid filling system according to claim 3, characterized in that: Three groups of medium conveying components (23) are arranged on the side wall of the transfer bin (22), and each group of the medium conveying components (23) comprises an extension pipe (24), and a detachable pipe connection nozzle (25) is provided at the top of the extension pipe (24).

5. A crane-based cryogenic fluid filling system according to claim 4, characterized in that: A second cryogenic liquid pump (26) is provided at the connection area between the second conduit (12) and the transfer chamber (22), and a third cryogenic liquid pump (27) is provided at the rear end of the third conduit (13).

6. A crane-based cryogenic fluid filling system according to claim 5, characterized in that: The fixing assembly (10) further comprises a central bin (29) fixedly mounted on the side wall of the auxiliary boom (4); a reinforcing block (30) fixedly mounted on the side wall of the central bin (29); a shell (31) fixedly mounted on the side wall of the reinforcing block (30); a supporting rod (32) fixedly mounted on the side wall of the reinforcing block (30); a limiting sleeve (33) fixedly mounted on the end of the supporting rod (32); and the first conduit (11), the second conduit (12), and the third conduit (13) are mounted in the limiting sleeve (33).

7. A crane-based cryogenic fluid filling system according to claim 6, characterized in that: Three fourth conduits (34) are extended from the side of the central warehouse (29), and the three fourth conduits (34) correspond to the first conduit (11), the second conduit (12), and the third conduit (13) one by one, respectively. The fourth conduit (34) extends through the reinforcement block (30) and the limiting sleeve (33) and enters the first conduit (11), the second conduit (12), and the third conduit (13), and a first micro valve (35) is provided on the fourth conduit (34) in the first conduit (11), the second conduit (12), and the third conduit (13).

8. A crane-based cryogenic fluid filling system according to claim 7, characterized in that: The first conduit (11), the second conduit (12), and the third conduit (13) on both sides of the fixing assembly (10) are all provided with electric control valves (36).

9. A crane-based cryogenic fluid filling system according to claim 8, characterized in that: A fifth conduit (37) is arranged at the bottom of the centralized warehouse (29), a second micro valve (38) is arranged at the connection between the fifth conduit (37) and the centralized warehouse (29), the fifth conduit (37) and the low-temperature storage tank (6) are connected by a pipeline, a sixth conduit (7) is also arranged at the bottom of the centralized warehouse (29) by a pipeline, a third micro valve (9) is arranged at the connection between the sixth conduit (7) and the centralized warehouse (29), the sixth conduit (7) extends into the interior of the low-temperature storage tank (6), and is connected to a fourth low-temperature liquid pump (41) in the low-temperature storage tank (6).

10. A crane-based cryogenic fluid filling system according to claim 9, characterized in that: A temperature detection sensor (39) and a cooling structure (40) are arranged in the cryogenic storage tank (6); the temperature detection sensor (39) is arranged on the inner wall of the cryogenic storage tank (6) in sequence from top to bottom; the cryogenic storage tank (6) is arranged below the auxiliary boom (4) in sequence from left to right; and each cryogenic storage tank (6) corresponds to one of the fixing components (10).

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