Liquefied natural gas (LNG) fuel cabin liquid collecting well and supporting structure

Abstract

The invention discloses an LNG fuel cabin liquid collecting well and a supporting structure, and relates to the technical field of LNG fuel cabins, the LNG fuel cabin liquid collecting well comprises a ship body base, supporting stand columns, an upper top plate, a fuel cabin body and a liquid collecting well body, the liquid collecting well body is clamped in the fuel cabin body, and an inverted concave clamping cover is arranged at the bottom of the liquid collecting well body; a placing cavity is formed between the bottom of the liquid collecting well body and the top of the inner wall of the fuel cabin body through the inverted concave clamping cover; two supporting rotating frames are fixedly connected to the top of the upper top plate, dirt can be prevented from entering the immersed pump, meanwhile, a special-shaped scraping plate can move along a scraping rod, then the dirt near the scraping rod is scraped to the center of an annular filtering clamping plate, the dirt on the annular filtering clamping plate is further removed, and the cleaning efficiency of the immersed pump is improved. And the situation that the interior of the immersed pump is damaged after dirt enters the immersed pump is integrally avoided, and the use adaptability is integrally improved.

Description

Technical Field

[0001] The invention relates to the technical field of LNG fuel tanks, and in particular to a LNG fuel tank liquid collecting well and a supporting structure. Background Art

[0002] LNG fuel tanks are key equipment on LNG ships. Their core function is to safely store LNG at extremely low temperatures. Their type, structure, function, importance, and safety measures are directly related to the safety and operation of the ship. Therefore, various factors should be fully considered during the design and use process to ensure that they can operate safely and reliably.

[0003] A Chinese patent with publication number CN115571266A discloses a combined anti-roll and anti-floating support device for a container ship fuel tank, comprising a top left support, a top right support, a lower middle support, a left anti-roll square laminated wood, a right anti-roll square laminated wood, and an upper anti-floating square laminated wood; the top left support and the top right support are symmetrically installed on the hull structure, the lower middle support is installed on the tank structure, the upper anti-floating square laminated wood is arranged in a first installation space formed by the top of the lower middle support, the left anti-roll square laminated wood is arranged in a second installation space formed between the top left support and the lower middle support, and the right anti-roll square laminated wood is arranged in a third installation space formed by the top right support and the lower middle support. The support device of the present invention can reduce the number of anti-floating support devices for the fuel tank, save the peripheral gap of the fuel tank, and improve the integrity of the insulation layer of the fuel tank.

[0004] As mentioned above, the patent provides a combined anti-roll and anti-floating support device for a container ship fuel tank, which can reduce the number of anti-floating support devices for the fuel tank, save the outer gap of the fuel tank, and improve the integrity of the fuel tank insulation layer. However, during use, dirt will gradually adhere to the inner wall of the liquid collection well, and these dirt will float in the liquid fuel after breaking. Over time, these dirt will enter the submersible pump and cause internal damage to the submersible pump. Therefore, an LNG fuel tank liquid collection well and support structure are designed to solve the problem of internal damage to the submersible pump. Summary of the invention

[0005] The object of the present invention is to provide a LNG fuel tank liquid collecting well and a supporting structure to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an LNG fuel tank liquid collecting well, comprising a hull base, a supporting column, an upper top plate, a fuel tank body and a liquid collecting well body, wherein the liquid collecting well body is clamped inside the fuel tank body, an inverted concave card cover is provided at the bottom of the liquid collecting well body, and a placement cavity is formed between the bottom of the liquid collecting well body and the bottom of the inner wall of the fuel tank body through the inverted concave card cover; The center of the bottom of the upper top plate is rotatably connected to a transmission gear through a gear shaft, the center of the bottom of the transmission gear is fixedly connected to a built-in hydraulic rod, the built-in hydraulic rod is vertically arranged, and the bottom end of the built-in hydraulic rod is fixedly connected to a spiral stirring impeller, the bottom of the inner wall of the liquid collecting well body is fixedly connected to an annular filter card plate, the center of the bottom of the liquid collecting well body and located in the middle of the annular filter card plate is rotatably connected to a flexible transmission card platform, the top of the flexible transmission card platform is fixedly connected to an agitating impeller, and one side of the flexible transmission card platform is fixedly connected to a scraper rod. A slide rail is provided on the surface of the rod, and a special-shaped scraper plate is slidably connected inside the slide rail. The surface of the special-shaped scraper plate is slidably connected to a limit clamping rod, and both ends of the limit clamping rod are respectively fixedly connected to the two sides of the inner wall of the slide rail, and one side of the scraper rod is fixedly connected to a waterproof motor, and the output shaft of the waterproof motor is fixedly connected to a reciprocating screw through a coupling, and the surface of the reciprocating screw is threadedly connected to the surface of the special-shaped scraper plate, and the side of the flexible transmission card platform away from the scraper rod is rotatably connected to an adsorption roller, and the surface of the adsorption roller is rollingly connected to the top of the annular filter card plate.

[0007] The present invention further illustrates that water outlet holes are provided on both sides of the adsorption drum, the center of the inner wall of the adsorption drum is fixedly connected to the adsorber, the inner wall of the adsorption drum and the bottom of the adsorber are rotatably connected to a rotating baffle, the number of the rotating baffles is set to two, and the two rotating baffles are symmetrically arranged on both sides of the adsorber, the inner sides of the two rotating baffles are fixedly connected to built-in micro cylinders, one end of the built-in micro cylinder away from the rotating baffle is fixedly connected to the inner wall of the adsorption drum, a discharge port is provided at the top of one side of the adsorption drum, an elastic vibration bar is fixedly connected to the outer surface of the adsorption drum and the position at the top of the discharge port, a water-passing sieve plate is fixedly connected to the inside of the adsorption drum and the position outside the adsorber, and a spiral guide plate is fixedly connected to the surface of the water-passing sieve plate.

[0008] The present invention further illustrates that a supporting rotating frame is fixedly connected to the top of the upper top plate, the number of the supporting rotating frames is set to two, and the interiors of the two supporting rotating frames are rotatably connected with an I-shaped rotating shaft, one end of the I-shaped rotating shaft is fixedly connected with a transmission gear, the number of the I-shaped rotating shaft and the transmission gear are both set to two, and the surfaces of the two transmission gears are meshed with each other, a motor seat is fixedly connected to the top of the upper top plate and located on one side of the supporting rotating frame, an upper motor is fixedly connected to the top of the motor seat, the output shaft of the upper motor is fixedly connected to one end of one of the I-shaped rotating shafts through a coupling, and one end of one of the I-shaped rotating shafts away from the transmission gear is fixedly connected to a longitudinal bevel gear.

[0009] The present invention further illustrates that a transmission card shaft is rotatably connected to the top of the upper top plate and located on one side of the longitudinal bevel gear, and the top of the transmission card shaft is fixedly connected to a transverse bevel gear, and the surface of the transverse bevel gear is meshed with the surface of the longitudinal bevel gear, and the transmission card shaft is vertically arranged, and the bottom end of the transmission card shaft passes through the upper top plate and extends to the bottom of the upper top plate, and one end of the transmission card shaft located at the bottom of the upper top plate is fixedly connected to an auxiliary pinion, and the surface of the auxiliary pinion is meshed with the surface of the transmission large gear, and a sealing card cover is fixedly connected to the bottom of the upper top plate and located on the surfaces of the auxiliary pinion and the transmission large gear, and the bottom end of the built-in hydraulic rod passes through the sealing card cover and extends to the bottom of the sealing card cover.

[0010] The present invention further describes that a hexagonal clamping shaft is fixedly connected to the bottom of the spiral stirring impeller, a hexagonal clamping groove is opened on the top of the flexible transmission clamping platform, the bottom of the scraper rod is slidingly connected to the top of the annular filter card plate, and the surface of the reciprocating screw is rotationally connected to the surface of the scraper rod.

[0011] The present invention further illustrates that an inverted trapezoidal block is fixedly connected to the middle of the outer side of the liquid collecting well body, and the middle of the inner cavity of the fuel tank body is set as an inverted trapezoidal cavity adapted to the inverted trapezoidal block.

[0012] The present invention further illustrates that the bottom end of the support column is fixedly connected to the top of the hull base, the top end of the support column is fixedly connected to the bottom of the upper top plate, the surface of the fuel tank body is fixedly connected to a connecting socket, and the surface of the connecting socket is slidably connected to the surface of the support column.

[0013] The present invention further illustrates that the surface of the I-shaped rotating shaft is sleeved with an I-shaped rotating roller, one side of the I-shaped rotating roller is fixedly connected with a plug-in card rod, the inner side of the I-shaped rotating shaft is provided with a plug-in card hole adapted to the plug-in card rod, the plug-in card rod is plugged into the inside of the plug-in card hole, the I-shaped rotating roller is rotatably connected to a sliding card seat on the side away from the plug-in card rod, one side of the sliding card seat is fixedly connected with an auxiliary cylinder, one end of the auxiliary cylinder is fixedly connected to the inner side of the supporting rotating frame, the surface of the sliding card seat is rotatably connected with a brake chuck, the two supporting rotating frames are fixedly connected with conical clamping blocks on the side away from the transmission gear, the top of the upper top plate is fixedly connected with a protective card box, and the two sides of the top of the upper top plate are fixedly connected with guide wheels.

[0014] The present invention further describes that a pulling rope is sleeved on the surface of the I-shaped roller, one end of the pulling rope away from the I-shaped roller is fixedly connected to the top of the connecting seat, and the surface of the pulling rope is slidably connected to the surface of the guide wheel.

[0015] The present invention further illustrates that an electric telescopic rod is rotatably connected to one side of the top of the hull base, one end of the electric telescopic rod is fixedly connected to a close block, the surface of the close block abuts against the surface of the fuel tank body, a wedge-shaped mounting bracket is fixedly connected to the top of the hull base and located at the bottom of the fuel tank body, the inclined surface of the wedge-shaped mounting bracket is fixedly connected to an inclined hydraulic rod, one end of the inclined hydraulic rod is fixedly connected to an arc-shaped blocking block, the arc-shaped blocking block is clamped on the surface of the electric telescopic rod, the number of the electric telescopic rod and the inclined hydraulic rod are both set to four, and the four electric telescopic rods and the inclined hydraulic rods are evenly and equidistantly arranged on the surface circumference of the fuel tank body.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are: (1) By arranging an annular filter card plate inside the liquid collecting well body, dirt can be prevented from entering the submersible pump. At the same time, the rotation of the spiral stirring impeller can accelerate the flow of liquid fuel inside the liquid collecting well body, thereby driving the agitation impeller to rotate, and then driving the flexible transmission card table to rotate, and then driving the scraper rod to rotate to scrape the surface of the annular filter card plate, which can prevent dirt from accumulating on the annular filter card plate and ensure that the liquid fuel flows out of the annular filter card plate normally. At the same time, the special-shaped scraper plate can move along the scraper rod, and then scrape the dirt near the scraper rod to the center of the annular filter card plate, further removing the dirt on the annular filter card plate, improving the fluidity of the liquid fuel, and preventing the submersible pump from being damaged after dirt enters the submersible pump, thereby improving the adaptability of use.

[0017] (2) By setting up an electric telescopic rod, when the fuel tank body is lifted, the electric telescopic rod drives the block close to it to move, and then abuts against the surface of the fuel tank body, so as to support the fuel tank body and prevent the pump tower from swaying during operation. In addition, a tilting hydraulic rod is set to cooperate with the arc-shaped block to clamp on the electric telescopic rod, and the tilting hydraulic rod can adjust the angle of the electric telescopic rod, so as to clamp fuel tank bodies of different diameters, further improving the adaptability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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 is a first stereoscopic diagram of a LNG fuel tank liquid collecting well and a supporting structure according to an embodiment of the present invention; Figure 2 is a schematic diagram of the bottom structure of the fuel tank body in an embodiment of the present invention; Figure 3 is a schematic diagram of the top structure of the upper top plate in an embodiment of the present invention; Figure 4 is a first cross-sectional view of a fuel tank body according to an embodiment of the present invention; Figure 5 is a first cross-sectional view of a liquid collecting well body in an embodiment of the present invention; Figure 6 is a schematic diagram of the top structure of the fuel tank body in an embodiment of the present invention; Figure 7 is a schematic diagram of the bottom structure of the liquid collecting well body in an embodiment of the present invention; Figure 8 is a second cross-sectional view of the fuel tank body in an embodiment of the present invention; Fig. 9 is an exploded view of an I-shaped rotating shaft connection structure in an embodiment of the present invention; Fig.10 Schematic diagram of the flexible transmission card table connection structure in an embodiment of the present invention; Fig.11 1 is an exploded view of the flexible transmission card table connection structure in an embodiment of the present invention; Fig.12 is a partial structural schematic diagram of a scraper rod in an embodiment of the present invention; Fig.13 is a schematic diagram of the internal structure of the adsorption drum in an embodiment of the present invention; Fig.14 is a schematic diagram of the external structure of the adsorption drum in an embodiment of the present invention; Fig.15 is a schematic diagram of the internal structure of the adsorption drum in an embodiment of the present invention; Fig.16 is a cross-sectional view of the internal structure of the adsorption drum in an embodiment of the present invention; In the figure: 1. Hull base; 2. Support column; 3. Upper top plate; 4. Fuel tank body; 5. Liquid collecting well body; 6. Inverted concave card cover; 7. Support rotating frame; 8. I-shaped rotating shaft; 9. Transmission gear; 10. Longitudinal bevel gear; 11. Transmission card shaft; 12. Transverse bevel gear; 13. Auxiliary small gear; 14. Transmission large gear; 15. Sealing card cover; 16. Built-in hydraulic rod; 17. Spiral stirring impeller; 18. Annular filter card plate; 19. Flexible transmission card platform; 20. Agitator impeller; 21. Scraper rod; 22. Slide rail; 23. Special-shaped scraper plate; 24. Limiting card rod; 25. Waterproof motor; 26. Reciprocating screw; 27. Hexagonal card shaft; 28. Hexagonal card Slot; 29, inverted trapezoidal block; 30, electric telescopic rod; 31, close to the block; 32, wedge-shaped mounting frame; 33, tilted hydraulic rod; 34, arc-shaped block; 35, connecting card seat; 36, motor seat; 37, upper motor; 38, I-shaped roller; 39, plug-in card rod; 40, plug-in card hole; 41, sliding card seat; 42, auxiliary cylinder; 43, brake chuck; 44, conical clamp block; 45, protective card box; 46, guide wheel; 47, pulling rope; 48, adsorption roller; 49, water outlet; 50, adsorber; 51, rotating baffle; 52, built-in micro cylinder; 53, discharge port; 54, elastic vibration bar; 55, water-passing screen plate; 56, spiral guide plate. DETAILED DESCRIPTION

[0019] 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.

[0020] refer to Figure 1 - Fig.10 An embodiment of the present invention provides an LNG fuel tank liquid collecting well, comprising a hull base 1, a supporting column 2, an upper top plate 3, a fuel tank body 4 and a liquid collecting well body 5, wherein the liquid collecting well body 5 is clamped in the interior of the fuel tank body 4, and an inverted concave card cover 6 is provided at the bottom of the liquid collecting well body 5, and a placement cavity is formed between the inverted concave card cover 6 and the bottom of the inner wall of the fuel tank body 4 at the bottom of the liquid collecting well body 5; the inverted concave card cover 6 is provided, and the placement cavity formed by the inverted concave card cover 6 and the fuel tank body 4 is used to place a submersible pump, and a water pipe is connected to the inverted concave card cover 6 to communicate with the submersible pump, and then the submersible pump is connected to the fuel tank body 4 through an external water pipe, thereby discharging the liquid fuel.

[0021] Figure 5 , Figure 8 and Fig.13As shown, the center of the bottom of the upper top plate 3 is rotatably connected with a transmission gear 14 through a gear shaft, and the center of the bottom of the transmission gear 14 is fixedly connected with a built-in hydraulic rod 16, which is vertically arranged, and the bottom end of the built-in hydraulic rod 16 is fixedly connected with a spiral stirring impeller 17, and the bottom of the inner wall of the liquid collecting well body 5 is fixedly connected with an annular filter card plate 18, and the annular filter card plate 18 can filter dirt, and the auxiliary pinion 13 is driven to rotate by the transmission card shaft 11, and the auxiliary pinion 13 is engaged with the transmission gear 14, so that the auxiliary pinion 13 is used to drive the transmission gear 14 to start rotating, and the transmission gear 14 rotates and drives the built-in hydraulic rod 16 to start rotating, and the built-in hydraulic rod 16 can drive the spiral stirring impeller 17 to rise and fall, and cooperate with the rotation of the built-in hydraulic rod 16, so that the spiral stirring impeller 17 starts to rotate, thereby accelerating the stirring of the liquid fuel inside the liquid collecting well body 5 and accelerating the flow of the liquid fuel. At the same time, the lifting and lowering of the spiral stirring impeller 17 can stir the liquid fuel at different liquid levels, thereby improving the adaptability of stirring. A flexible transmission card platform 19 is rotatably connected to the center of the bottom of the liquid collecting well body 5 and located in the middle of the annular filter card plate 18. An agitator impeller 20 is fixedly connected to the top of the flexible transmission card platform 19. A scraper rod 21 is fixedly connected to one side of the flexible transmission card platform 19. A slide rail 22 is provided on the surface of the scraper rod 21. A special-shaped scraper plate 23 is slidably connected inside the slide rail 22. A limit card rod 24 is slidably connected to the surface of the special-shaped scraper plate 23. The two ends of the limit card rod 24 are respectively fixedly connected to the two sides of the inner wall of the slide rail 22. A waterproof motor 25 is fixedly connected to one side of the scraper rod 21. The output shaft of the waterproof motor 25 is fixedly connected to a reciprocating screw 26 through a coupling. The surface of the reciprocating screw 26 is threadedly connected to the surface of the special-shaped scraper plate 23. The side of the flexible transmission card platform 19 away from the scraper rod 21 is rotatably connected to an adsorption roller 48. The surface of the adsorption roller 48 is rollingly connected to the top of the annular filter card plate 18. The rotation of the spiral stirring impeller 17 can accelerate the flow of the liquid fuel inside the liquid collecting well body 5, thereby driving the agitation impeller 20 to rotate, and then driving the flexible transmission card table 19 to rotate, and then driving the scraper rod 21 to rotate, scraping the surface of the annular filter card plate 18, which can prevent dirt from accumulating on the annular filter card plate 18, and ensure that the liquid fuel flows out of the annular filter card plate 18 normally. The special-shaped scraper plate 23 can slide inside the slide rail 22, and the limit card rod 24 limits the special-shaped scraper plate 23 to prevent the special-shaped scraper plate 23 from sliding sideways. When the waterproof motor 25 is working, the reciprocating screw 26 is driven to rotate through the output shaft. After the reciprocating screw 26 rotates, it drives the special-shaped scraper plate 23 to start reciprocating movement, and the dirt near the scraper rod 21 can be scraped to the center of the annular filter card plate 18, further removing the dirt on the annular filter card plate 18, improving the fluidity of the liquid fuel, and preventing the dirt from entering the submersible pump and causing damage to the inside of the submersible pump, thereby improving the adaptability of use.At the same time, the adsorption roller 48 can be arranged to adsorb the annular filter card plate 18 , and can adsorb the dirt attached to the inside of the annular filter card plate 18 when scraping, so as to further ensure the normal filtering function of the annular filter card plate 18 .

[0022] Fig.13 - Fig.16 As shown, a discharge port 53 is provided at the top of one side of the adsorption drum 48, an elastic vibration bar 54 is fixedly connected to the outer surface of the adsorption drum 48 and at the top of the discharge port 53, a water-permeable sieve plate 55 is fixedly connected to the inside of the adsorption drum 48 and at the outside of the adsorber 50, and a spiral guide plate 56 is fixedly connected to the surface of the water-permeable sieve plate 55. When the adsorption roller 48 rotates with the flexible transmission card table 19, it will roll on the annular filter card plate 18, and the elastic vibration bar 54 will rotate to the elastic vibration bar 54 and the annular filter card plate 18 with the rotation of the adsorption roller 48, so that the elastic vibration bar 54 will cause the adsorption roller 48 to start vibrating, and then vibrate the dirt inside the adsorption roller 48 to the position of the adsorption roller 48 close to the elastic vibration bar 54, and the water-passing screen plate 55 has a small opening to isolate the dirt. At the same time, the adsorption roller 48 will drive the spiral guide plate 56 to start rotating while rolling, and guide the internal dirt. Combined with the vibration effect of the elastic vibration bar 54, the internal dirt will continue to fall at the position of the discharge port 53, and the dirt will be continuously discharged from the adsorption roller 48, and the dirt here will be discharged to the middle of the annular filter screen plate again, thereby realizing the collection of dirt and further improving the adaptability of use.

[0023] like Fig.10 , Fig.11 and Fig.13 As shown, water outlet holes 49 are opened on both sides of the adsorption drum 48, and an adsorber 50 is fixedly connected to the center of the inner wall of the adsorption drum 48. A rotating baffle 51 is rotatably connected to the inner wall of the adsorption drum 48 and located at the bottom of the adsorber 50. The number of the rotating baffles 51 is set to two, and the two rotating baffles 51 are symmetrically arranged on both sides of the adsorber 50, respectively. The inner sides of the two rotating baffles 51 are fixedly connected with built-in micro cylinders 52, and the end of the built-in micro cylinder 52 away from the rotating baffle 51 is fixedly connected to the inner wall of the adsorption drum 48. When adsorbing dirt, the built-in micro cylinder 52 drives the rotating baffle 51 to rotate, so that an opening is formed on the surface of the adsorption drum 48. Then the adsorber 50 works to generate suction, and the dirt in the filter hole of the annular filter card plate 18 is adsorbed out and enters the adsorption drum 48 through the opening at the rotating baffle 51. Then the adsorption drum 48 continues to roll on the annular filter card plate 18, and the built-in micro cylinder 52 drives the rotating baffle 51 to close the opening. The liquid fuel that enters the adsorption drum 48 as the dirt is adsorbed is discharged from the water outlet. The whole can cooperate with the scraping rod 21 to scrape the impurities in the filter hole and discharge the liquid fuel, thereby improving the adaptability of use.

[0024] like Figure 4 , Figure 5 and Figure 8 As shown, a supporting rotating frame 7 is fixedly connected to the top of the upper top plate 3, and the upper top plate 3 supports the supporting rotating frame 7. The number of supporting rotating frames 7 is set to two, and the interiors of the two supporting rotating frames 7 are both rotatably connected with an I-shaped rotating shaft 8, and one end of the I-shaped rotating shaft 8 is fixedly connected with a transmission gear 9. The number of the I-shaped rotating shaft 8 and the transmission gear 9 are both set to two, and the surfaces of the two transmission gears 9 are meshed with each other. A motor seat 36 is fixedly connected to the top of the upper top plate 3 and located on one side of the supporting rotating frame 7. An upper motor 37 is fixedly connected to the top of the motor seat 36. The output shaft of the upper motor 37 is fixedly connected to one end of one of the I-shaped rotating shafts 8 through a coupling, and one end of one of the I-shaped rotating shafts 8 away from the transmission gear 9 is fixedly connected with a longitudinal bevel gear 10. The transmission card shaft 11 is arranged vertically, and the bottom end of the transmission card shaft 11 passes through the upper top plate 3 and extends to the bottom of the upper top plate 3. The I-shaped rotating shaft 8 rotates on the supporting rotating frame 7. Two supporting rotating frames 7 and I-shaped rotating shafts 8 are arranged. After one of the I-shaped rotating shafts 8 rotates, it can drive the transmission gear 9 to start rotating. After the transmission gear 9 rotates, it drives another transmission gear 9 to rotate, and then drives another I-shaped rotating shaft 8 fixedly connected to the transmission gear 9 to rotate. After this I-shaped rotating shaft 8 rotates, it drives the longitudinal bevel gear 10 to rotate.

[0025] like Figure 4 , Figure 5 and Figure 8As shown, the top of the upper top plate 3 and one side of the longitudinal bevel gear 10 is rotatably connected with a transmission card shaft 11, and the top of the transmission card shaft 11 is fixedly connected with a transverse bevel gear 12, and the surface of the transverse bevel gear 12 is meshed with the surface of the longitudinal bevel gear 10. After the longitudinal bevel gear 10 rotates, the transverse bevel gear 12 is driven to rotate, and after the transverse bevel gear 12 rotates, the transmission card shaft 11 connected thereto begins to rotate. The transmission card shaft 11 is vertically arranged, and the bottom end of the transmission card shaft 11 passes through the upper top plate 3 and extends to the bottom of the upper top plate 3. One end of the transmission card shaft 11 located at the bottom of the upper top plate 3 is fixedly connected with an auxiliary pinion 13, and the surface of the auxiliary pinion 13 is meshed with the surface of the transmission gear 14. A sealing card cover 15 is fixedly connected to the bottom of the upper top plate 3 and the surfaces of the auxiliary pinion 13 and the transmission gear 14. The sealing card cover 15 protects the auxiliary pinion 13 and the transmission gear 14 and can isolate liquid fuel. The bottom end of the built-in hydraulic rod 16 penetrates the sealing card cover 15 and extends to the bottom of the sealing card cover 15. The auxiliary pinion 13 is driven to rotate by the transmission card shaft 11, and the auxiliary pinion 13 is meshed with the transmission gear 14, so that the auxiliary pinion 13 drives the transmission gear 14 to start rotating, and the transmission gear 14 drives the built-in hydraulic rod 16 to start rotating after the transmission gear 14 rotates. The built-in hydraulic rod 16 can drive the spiral stirring impeller 17 to rise and fall, and cooperate with the rotation of the built-in hydraulic rod 16 to provide energy for the rotation of the spiral stirring impeller 17.

[0026] like Figure 5 , Figure 8 and Fig.10 As shown, the bottom of the spiral stirring impeller 17 is fixedly connected with a hexagonal clamping shaft 27, the top of the flexible transmission clamping platform 19 is provided with a hexagonal clamping groove 28, the bottom of the scraper rod 21 is slidably connected with the top of the annular filter card plate 18, and the surface of the reciprocating screw 26 is rotationally connected with the surface of the scraper rod 21. As the liquid fuel is continuously discharged, the liquid level of the internal liquid fuel begins to drop. At this time, the spiral stirring impeller 17 cannot accelerate the flow of the liquid fuel. The built-in hydraulic rod 16 is extended, so that the hexagonal clamping shaft 27 at the bottom of the spiral stirring impeller 17 can be clamped into the hexagonal clamping groove 28, and then the hexagonal clamping shaft 27 can cooperate with the hexagonal clamping groove 28 to drive the flexible transmission clamping platform 19 to continue to rotate, so that the scraper rod 21 continues to scrape the dirt on the surface of the annular filter card plate 18, further improving the continuity of the filtration of the annular filter card plate 18, and no clogging will occur during filtration.

[0027] like Figure 4 - Figure 6As shown, an inverted trapezoidal block 29 is fixedly connected to the middle of the outer side of the liquid collecting well body 5, and the middle of the inner cavity of the fuel tank body 4 is set as an inverted trapezoidal cavity adapted to the inverted trapezoidal block 29. The inverted trapezoidal block 29 on the surface of the liquid collecting well body 5 can be stuck in the inverted trapezoidal cavity in the middle of the fuel tank body 4, so that the liquid collecting well body 5 can be smoothly stuck into the fuel tank body 4, thereby improving the supporting effect of the fuel tank body 4 on the liquid collecting well body 5.

[0028] like Figure 1 As shown, the bottom end of the support column 2 is fixedly connected to the top of the hull base 1, the top end of the support column 2 is fixedly connected to the bottom of the upper top plate 3, and the surface of the fuel tank body 4 is fixedly connected with a connection seat 35, and the surface of the connection seat 35 is slidably connected to the surface of the support column 2. The hull base 1 supports the support column 2, and then the support column 2 supports the upper top plate 3, and the connection seat 35 supports the fuel tank body 4, and the connection seat 35 can slide on the support column 2, so that the support column 2 cooperates with the connection seat 35 to limit the fuel tank body 4.

[0029] like Figure 3 , Figure 4 and Fig. 9As shown, an I-shaped roller 38 is sleeved on the surface of the I-shaped rotating shaft 8, and a plug-in card rod 39 is fixedly connected to one side of the I-shaped rotating shaft 8. A plug-in card hole 40 adapted to the plug-in card rod 39 is opened on the inner side of the I-shaped rotating shaft 8, and the plug-in card rod 39 is plugged into the inside of the plug-in card hole 40. When the plug-in card rod 39 on the I-shaped rotating roller 38 is plugged into the plug-in card hole 40 on the surface of the I-shaped rotating shaft 8, the I-shaped rotating shaft 8 can drive the I-shaped rotating roller 38 to start rotating. The side of the I-shaped roller 38 away from the plug-in card rod 39 is rotatably connected to a sliding card seat 41, and an auxiliary cylinder 42 is fixedly connected to one side of the sliding card seat 41. One end of the auxiliary cylinder 42 is fixedly connected to the inner side of the supporting rotating frame 7. The surface of the sliding card seat 41 is rotatably connected to a brake chuck 43. The two supporting rotating frames 7 are fixedly connected to the side away from the transmission gear 9 with a conical clamping block 44. The more pointed the conical clamping block 44 is toward the brake chuck 43, the wider the width becomes as it moves away from the brake chuck 43. A protective card box 45 is fixedly connected to the top of the upper top plate 3. Both sides of the top of the upper top plate 3 are fixedly connected to guide wheels 46. A pull rope 47 is sleeved on the surface of the I-shaped roller 38. The end of the pull rope 47 away from the I-shaped roller 38 is fixedly connected to the top of the connecting card seat 35, and the surface of the pull rope 47 is slidably connected to the surface of the guide wheel 46. The I-shaped roller 38 is rotated to drive the pulling rope 47 to be reeled in. After the pulling rope 47 is reeled in, the connecting base 35 can be pulled up, thereby achieving the function of lifting the fuel tank body 4. When the fuel tank body 4 is lifted, the auxiliary cylinder 42 works to drive the sliding base 41 to start moving, thereby causing the brake chuck 43 on the surface of the sliding base 41 to gradually move toward the conical clamp block 44. As it continues to move into the conical clamp block 44, the brake chuck 43 will gradually rotate on the sliding base 41, thereby gradually locking the I-shaped roller 38, so that the I-shaped roller 38 can be locked and no longer rotate, and will not affect the subsequent rotation of the I-shaped shaft 8, further improving the adaptability of use.

[0030] like Figure 1 - Figure 2As shown, one side of the top of the hull base 1 is rotatably connected to an electric telescopic rod 30, one end of the electric telescopic rod 30 is fixedly connected to a close block 31, the surface close to the block 31 abuts against the surface of the fuel tank body 4, and a wedge-shaped mounting bracket 32 ​​is fixedly connected to the top of the hull base 1 and located at the bottom of the fuel tank body 4, and an inclined surface of the wedge-shaped mounting bracket 32 ​​is fixedly connected to an inclined hydraulic rod 33, one end of the inclined hydraulic rod 33 is fixedly connected to an arc-shaped block 34, and the arc-shaped block 34 is clamped on the surface of the electric telescopic rod 30, and the number of the electric telescopic rod 30 and the inclined hydraulic rod 33 are both set to four, and the four electric telescopic rods 30 and the inclined hydraulic rods 33 are evenly and equidistantly arranged on the circumference of the surface of the fuel tank body 4. The electric telescopic rod 30 can rotate on the hull base 1. When the fuel tank body 4 is lifted, the electric telescopic rod 30 drives the close block 31 to move, and then rests on the surface of the fuel tank body 4, which can support the fuel tank body 4 and prevent the pump tower from swaying during operation. In addition, a tilted hydraulic rod 33 is provided to cooperate with the arc-shaped block 34 to be clamped on the electric telescopic rod 30, and the tilted hydraulic rod 33 can adjust the angle of the electric telescopic rod 30, so as to clamp the fuel tank body 4 of different diameters, further improving the adaptability of use. Four electric telescopic rods 30 and tilted hydraulic rods 33 are provided, which can be arranged equidistantly on the circumference of the surface of the fuel tank body 4, thereby improving the supporting surface of the fuel tank body 4 and ensuring the supporting effect of the fuel tank body 4.

[0031] Working principle: the liquid collecting well body 5 is placed inside the fuel tank body 4, and the fuel tank body 4 is used to support and protect the liquid collecting well body 5. An inverted concave card cover 6 is set, and the placement formed by the inverted concave card cover 6 and the fuel tank body 4 is used to place a submersible pump. The inverted concave card cover 6 is connected to a water pipe and connected to the submersible pump. Then the submersible pump is connected to the fuel tank body 4 through an external water pipe, so as to discharge the liquid fuel. The upper top plate 3 supports the supporting rotating frame 7, and the I-shaped rotating shaft 8 rotates on the supporting rotating frame 7. Two supporting rotating frames 7 and the I-shaped rotating shaft 8 are set. The motor seat 36 is fixed on the top of the upper top plate 3 to support the upper motor 37. When the upper motor 37 is working, it drives one of the I-shaped rotating shafts 8 to rotate, so as to provide energy for the overall rotation work. After one of the I-shaped rotating shafts 8 rotates, it can drive the transmission gear 9 to start rotating. After the transmission gear 9 rotates, it drives another transmission gear 9 to rotate, and then drives another I-shaped rotating shaft 8 fixedly connected to the transmission gear 9 to rotate. After the I-shaped rotating shaft 8 rotates, it drives the longitudinal bevel gear 10 to rotate. After the longitudinal bevel gear 10 rotates, it drives the transverse bevel gear 12 to rotate. After the transverse bevel gear 12 rotates, the transmission card shaft 11 connected thereto starts to rotate. The sealing card cover 15 protects the auxiliary pinion 13 and the transmission gear 14 to isolate the liquid fuel. The transmission card shaft 11 drives the auxiliary pinion 13 to rotate, and the auxiliary pinion 13 meshes with the transmission gear 14, so that the auxiliary pinion 13 drives the transmission gear 14 to start rotating, and the transmission After the large gear 14 rotates, it drives the built-in hydraulic rod 16 to start rotating. The built-in hydraulic rod 16 can drive the spiral stirring impeller 17 to rise and fall. With the rotation of the built-in hydraulic rod 16, the spiral stirring impeller 17 starts to rotate, thereby accelerating the stirring of the liquid fuel inside the liquid collecting well body 5 and accelerating the flow of the liquid fuel. At the same time, the lifting and lowering of the spiral stirring impeller 17 can stir the liquid fuel at different liquid levels to improve the adaptability of stirring. The annular filter card plate 18 can filter dirt. The rotation of the spiral stirring impeller 17 can accelerate the flow of the liquid fuel inside the liquid collecting well body 5, thereby driving the agitator impeller 20 to rotate, and then driving the flexible transmission card table 19 to rotate, and then driving the scraper rod 21 to rotate, so as to clean the surface of the annular filter card plate 18. Scraping can prevent dirt from accumulating on the annular filter card plate 18, ensuring that the liquid fuel flows out of the annular filter card plate 18 normally. The special-shaped scraper plate 23 can slide inside the slide rail 22, and the limit rod 24 limits the special-shaped scraper plate 23 to prevent the special-shaped scraper plate 23 from sliding sideways. In addition, when the waterproof motor 25 is working, it drives the reciprocating screw 26 to rotate through the output shaft. After the reciprocating screw 26 rotates, it drives the special-shaped scraper plate 23 to start reciprocating movement, which can scrape the dirt near the scraper rod 21 to the center of the annular filter card plate 18, further remove the dirt on the annular filter card plate 18, improve the fluidity of the liquid fuel, and prevent the dirt from entering the submersible pump and causing damage to the inside of the submersible pump, thereby improving the adaptability of use as a whole.At the same time, the adsorption roller 48 is arranged to adsorb the annular filter card plate 18, and can adsorb the dirt attached to the inside of the annular filter card plate 18 during scraping, so as to further ensure the normal filtering function of the annular filter card plate 18. When adsorbing dirt, the built-in micro-cylinder 52 drives the rotating baffle 51 to rotate, so that an opening is formed on the surface of the adsorption roller 48, and then the adsorber 50 works to generate suction, and the dirt in the filter hole of the annular filter card plate 18 is adsorbed out and enters the adsorption roller 48 from the opening at the rotating baffle 51. Then the adsorption roller 48 continues to roll on the annular filter card plate 18, and the built-in micro-cylinder 52 drives the rotating baffle 51 to close the opening. As the dirt is adsorbed, the liquid fuel entering the adsorption roller 48 is discharged from the water outlet. The whole can cooperate with the scraping of the scraper rod 21 to specifically remove the impurities in the filter hole and discharge the liquid fuel, thereby improving the adaptability of use. When the adsorption roller 48 rotates with the flexible transmission card table 19, it will roll on the annular filter card plate 18, and the elastic vibration bar 54 will rotate to the elastic vibration bar 54 and the annular filter card plate 18 with the rotation of the adsorption roller 48, so that the elastic vibration bar 54 will cause the adsorption roller 48 to start vibrating, and then vibrate the dirt inside the adsorption roller 48 to the position of the adsorption roller 48 close to the elastic vibration bar 54, and the water-passing screen plate 55 has a small opening to isolate the dirt. At the same time, the adsorption roller 48 will drive the spiral guide plate 56 to start rotating while rolling, and guide the internal dirt. Combined with the vibration effect of the elastic vibration bar 54, the internal dirt will continue to fall at the position of the discharge port 53, and the dirt will be continuously discharged from the adsorption roller 48, and the dirt here will be discharged to the middle of the annular filter screen plate again, thereby realizing the collection of dirt and further improving the adaptability of use.As the liquid fuel is continuously discharged, the liquid level of the internal liquid fuel begins to drop. At this time, the spiral stirring impeller 17 cannot accelerate the flow of the liquid fuel, and the built-in hydraulic rod 16 is extended, so that the hexagonal clamping shaft 27 at the bottom of the spiral stirring impeller 17 can be clamped into the hexagonal clamping groove 28, and then the hexagonal clamping shaft 27 can cooperate with the hexagonal clamping groove 28 to drive the flexible transmission clamping platform 19 to continue to rotate, so that the scraper rod 21 continues to scrape out the dirt on the surface of the annular filter card plate 18, further improving the continuity of the filtration of the annular filter card plate 18, and no clogging will occur during filtration. The inverted trapezoidal clamping block 29 on the surface of the liquid collecting well body 5 can be clamped in the inverted In the trapezoidal cavity, the liquid collecting well body 5 can be stably inserted into the fuel tank body 4, thereby improving the supporting effect of the fuel tank body 4 on the liquid collecting well body 5. The hull base 1 supports the supporting column 2, and then the supporting column 2 supports the upper top plate 3. The electric telescopic rod 30 can rotate on the hull base 1. When the fuel tank body 4 is hoisted, the electric telescopic rod 30 drives the close block 31 to move, and then abuts against the surface of the fuel tank body 4, which can support the fuel tank body 4 and prevent the pump tower from swaying during operation. In addition, a tilting hydraulic rod 33 is arranged to cooperate with the arc block 34 to be stuck on the electric telescopic rod 30, and the tilting hydraulic rod 33 can adjust the electric telescopic rod 33 when it works. The angle of the retracted rod 30 can be adjusted to clamp the fuel tank body 4 with different diameters, further improving the adaptability of use. Four electric telescopic rods 30 and tilting hydraulic rods 33 can be arranged equidistantly on the surface circumference of the fuel tank body 4, thereby improving the supporting surface of the fuel tank body 4 and ensuring the supporting effect of the fuel tank body 4. The connecting clamp 35 supports the fuel tank body 4, and the connecting clamp 35 can slide on the supporting column 2, so that the supporting column 2 cooperates with the connecting clamp 35 to limit the fuel tank body 4. When the plug-in clamp rod 39 on the I-shaped roller 38 is inserted into the plug-in clamp hole 40 on the surface of the I-shaped shaft 8, the I-shaped shaft 8 can drive the I-shaped roller 38 to rotate. The roller 38 starts to rotate, and the rotation of the I-shaped roller 38 drives the pulling rope 47 to be reeled in. After the pulling rope 47 is reeled in, the connecting base 35 can be pulled up, thereby achieving the function of lifting the fuel tank body 4. When the fuel tank body 4 is lifted, the auxiliary cylinder 42 works to drive the sliding base 41 to start moving, thereby causing the brake chuck 43 on the surface of the sliding base 41 to gradually move toward the conical clamp block 44. As it continues to move into the conical clamp block 44, the brake chuck 43 will gradually rotate on the sliding base 41, and then gradually lock the I-shaped roller 38, so that the I-shaped roller 38 can be locked and no longer rotate, and will not affect the subsequent rotation of the I-shaped shaft 8, further improving the adaptability of use.

[0032] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0033] 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. An LNG fuel tank liquid collecting well, comprising a hull base (1), a supporting column (2), an upper top plate (3), a fuel tank body (4) and a liquid collecting well body (5), characterized in that: The liquid collecting well body (5) is clamped inside the fuel tank body (4), and a concave clamping cover (6) is provided at the bottom of the liquid collecting well body (5). A placement cavity is formed between the bottom of the liquid collecting well body (5) and the bottom of the inner wall of the fuel tank body (4); The center of the bottom of the upper top plate (3) is rotatably connected to a transmission gear (14) via a gear shaft, the center of the bottom of the transmission gear (14) is fixedly connected to a built-in hydraulic rod (16), the built-in hydraulic rod (16) is vertically arranged, the bottom end of the built-in hydraulic rod (16) is fixedly connected to a spiral stirring impeller (17), the bottom of the inner wall of the liquid collecting well body (5) is fixedly connected to an annular filter card plate (18), the center of the bottom of the liquid collecting well body (5) and located in the middle of the annular filter card plate (18) is rotatably connected to a flexible transmission card platform (19), the top of the flexible transmission card platform (19) is fixedly connected to an agitating impeller (20), one side of the flexible transmission card platform (19) is fixedly connected to a scraper rod (21), the surface of the scraper rod (21) A slide rail (22) is provided, the interior of the slide rail (22) is slidably connected to a special-shaped scraper plate (23), the surface of the special-shaped scraper plate (23) is slidably connected to a limit clamping rod (24), the two ends of the limit clamping rod (24) are respectively fixedly connected to the two sides of the inner wall of the slide rail (22), one side of the scraper rod (21) is fixedly connected to a waterproof motor (25), the output shaft of the waterproof motor (25) is fixedly connected to a reciprocating screw rod (26) through a coupling, the surface of the reciprocating screw rod (26) is threadedly connected to the surface of the special-shaped scraper plate (23), and the side of the flexible transmission card table (19) away from the scraper rod (21) is rotatably connected to an adsorption roller (48), and the surface of the adsorption roller (48) is rollingly connected to the top of the annular filter card plate (18).

2. The LNG fuel tank liquid collecting well according to claim 1, characterized in that: Water outlet holes (49) are provided on both sides of the adsorption drum (48); an adsorbent (50) is fixedly connected to the center of the inner wall of the adsorption drum (48); a rotating baffle (51) is rotatably connected to the inner wall of the adsorption drum (48) and located at the bottom of the adsorbent (50); the number of the rotating baffles (51) is set to two, and the two rotating baffles (51) are symmetrically arranged on both sides of the adsorbent (50); the inner sides of the two rotating baffles (51) are fixedly connected to built-in micro cylinders (52); the built-in One end of the micro cylinder (52) away from the rotating baffle (51) is fixedly connected to the inner wall of the adsorption roller (48); a discharge port (53) is provided at the top of one side of the adsorption roller (48); an elastic vibration bar (54) is fixedly connected to the outer surface of the adsorption roller (48) and at a position located at the top of the discharge port (53); a water-permeable sieve plate (55) is fixedly connected to the inside of the adsorption roller (48) and at a position located outside the adsorber (50); and a spiral guide plate (56) is fixedly connected to the surface of the water-permeable sieve plate (55).

3. The LNG fuel tank liquid collecting well according to claim 1, characterized in that: The top of the upper top plate (3) is fixedly connected to a support rotating frame (7), the number of the support rotating frames (7) is set to two, and the insides of the two support rotating frames (7) are both rotatably connected to an I-shaped rotating shaft (8), one end of the I-shaped rotating shaft (8) is fixedly connected to a transmission gear (9), the number of the I-shaped rotating shaft (8) and the transmission gear (9) are both set to two, and the surfaces of the two transmission gears (9) are meshed with each other, the top of the upper top plate (3) and located on one side of the support rotating frame (7) is fixedly connected to a motor seat (36), the top of the motor seat (36) is fixedly connected to an upper motor (37), the output shaft of the upper motor (37) is fixedly connected to one end of one of the I-shaped rotating shafts (8) through a coupling, and one end of one of the I-shaped rotating shafts (8) away from the transmission gear (9) is fixedly connected to a longitudinal bevel gear (10).

4. The LNG fuel tank liquid collecting well according to claim 3, characterized in that: A transmission card shaft (11) is rotatably connected to the top of the upper top plate (3) and located on one side of the longitudinal bevel gear (10); a transverse bevel gear (12) is fixedly connected to the top of the transmission card shaft (11); the surface of the transverse bevel gear (12) meshes with the surface of the longitudinal bevel gear (10); the transmission card shaft (11) is vertically arranged; the bottom end of the transmission card shaft (11) passes through the upper top plate (3) and extends to the bottom of the upper top plate (3); An end of the shaft (11) located at the bottom of the upper top plate (3) is fixedly connected to an auxiliary pinion (13), the surface of the auxiliary pinion (13) and the surface of the transmission gear (14) are meshed with each other, a sealing card cover (15) is fixedly connected to the bottom of the upper top plate (3) and the surfaces of the auxiliary pinion (13) and the transmission gear (14), and the bottom end of the built-in hydraulic rod (16) penetrates the sealing card cover (15) and extends to the bottom of the sealing card cover (15).

5. The LNG fuel tank liquid collecting well according to claim 1, characterized in that: The bottom of the spiral stirring impeller (17) is fixedly connected to a hexagonal clamping shaft (27), the top of the flexible transmission clamping platform (19) is provided with a hexagonal clamping groove (28), the bottom of the scraper rod (21) is slidably connected to the top of the annular filter card plate (18), and the surface of the reciprocating screw rod (26) is rotatably connected to the surface of the scraper rod (21).

6. The LNG fuel tank liquid collecting well according to claim 1, characterized in that: An inverted trapezoidal clamping block (29) is fixedly connected in the middle of the outer side of the liquid collecting well body (5), and an inverted trapezoidal cavity adapted to the inverted trapezoidal clamping block (29) is arranged in the middle of the inner cavity of the fuel tank body (4).

7. The LNG fuel tank liquid collecting well according to claim 1, characterized in that: The bottom end of the support column (2) is fixedly connected to the top of the hull base (1), the top end of the support column (2) is fixedly connected to the bottom of the upper top plate (3), and the surface of the fuel tank body (4) is fixedly connected to a connecting seat (35), and the surface of the connecting seat (35) is slidably connected to the surface of the support column (2).

8. The LNG fuel tank liquid collecting well according to claim 2, characterized in that: The surface of the I-shaped rotating shaft (8) is sleeved with an I-shaped rotating roller (38), one side of the I-shaped rotating roller (38) is fixedly connected to a plug-in card rod (39), the inner side of the I-shaped rotating shaft (8) is provided with a plug-in card hole (40) adapted to the plug-in card rod (39), the plug-in card rod (39) is plugged into the inside of the plug-in card hole (40), and the side of the I-shaped rotating roller (38) away from the plug-in card rod (39) is rotatably connected to a sliding card seat (41), the sliding card seat (41) One side is fixedly connected to an auxiliary cylinder (42), one end of the auxiliary cylinder (42) is fixedly connected to the inner side of the supporting rotating frame (7), the surface of the sliding card seat (41) is rotatably connected to a brake chuck (43), the two sides of the supporting rotating frames (7) away from the transmission gear (9) are fixedly connected to a conical clamping block (44), the top of the upper top plate (3) is fixedly connected to a protective card box (45), and the two sides of the top of the upper top plate (3) are fixedly connected to guide wheels (46).

9. The LNG fuel tank liquid collecting well according to claim 8, characterized in that: A pulling rope (47) is sleeved on the surface of the I-shaped roller (38), one end of the pulling rope (47) away from the I-shaped roller (38) is fixedly connected to the top of the connecting seat (35), and the surface of the pulling rope (47) is slidably connected to the surface of the guide wheel (46).

10. An LNG fuel tank liquid collecting well support structure, applicable to an LNG fuel tank liquid collecting well as claimed in any one of claims 1 to 9, characterized in that: An electric telescopic rod (30) is rotatably connected to one side of the top of the hull base (1); one end of the electric telescopic rod (30) is fixedly connected to a close clamping block (31); the surface of the close clamping block (31) abuts against the surface of the fuel tank body (4); a wedge-shaped mounting frame (32) is fixedly connected to the top of the hull base (1) and located at the bottom of the fuel tank body (4); an inclined surface of the wedge-shaped mounting frame (32) is fixedly connected to an inclined hydraulic rod (33); one end of the inclined hydraulic rod (33) is fixedly connected to an arc-shaped clamping block (34); the arc-shaped clamping block (34) is clamped to the surface of the electric telescopic rod (30); the number of the electric telescopic rod (30) and the number of the four electric telescopic rods (30) and the four four tilting hydraulic rods (33) are evenly and equidistantly arranged on the circumference of the surface of the fuel tank body (4).

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