A leak-proof ship LNG filling equipment

Abstract

The present invention relates to the field of ship refueling, and in particular to a leak-proof ship LNG refueling equipment. The technical problem of the present invention is: during refueling, the liquid natural gas in the container will shake, affecting the refueling of the ship, and the natural gas will overflow from the transportation channel to cause waste, and it is easy to cause safety accidents. The technical solution of the present invention is: a leak-proof ship LNG refueling equipment, including a mounting seat and a storage container, etc.; a storage container for storing natural gas is provided on the mounting seat, a flange interface is provided at the bottom of the storage container, a gathering place is provided at the bottom of the storage container, and a valve and a pressure pump are provided in the storage container. The present invention restricts the liquid natural gas in the storage container through a hollow circular plate, so that it cannot shake significantly and can only be transferred upward from the center of the hollow circular plate to the surface of the hollow circular plate, so that the transportation efficiency of the liquid natural gas is stabilized, and the problem that the liquid natural gas in the storage container shakes and affects the refueling of the ship is avoided.

Description

Technical Field

[0001] The present invention relates to the field of ship filling, and in particular to a leakage-proof ship LNG filling equipment. Background Art

[0002] The bunkering ship's container stores liquid natural gas, but some of the liquid natural gas will gasify and be stored in the container.

[0003] The following problems exist in the use of existing ship bunkering equipment:

[0004] 1. During the process of refueling a ship at sea, the liquefied natural gas in the container is transported into the ship. The water level of the liquefied natural gas in the container begins to drop. At the same time, as the waves rise and fall, the ship itself sways with the waves, and the liquefied natural gas in the container begins to shake, causing fluctuations in the efficiency of transporting liquefied natural gas to the ship, affecting the ship's natural gas refueling;

[0005] 2. When a ship is refueling at sea, it will swing due to the influence of waves, and the delivery channel will be pulled, causing damage to the delivery channel. Natural gas will overflow from the delivery channel and cause waste. At the same time, because the temperature of liquid natural gas is relatively low (about minus 160 degrees), if the staff stays around the delivery channel at this time, it is easy to cause safety accidents. Summary of the Invention

[0006] In order to overcome the shortcomings that the liquid natural gas in the container will shake during filling, affecting the filling of the ship, the natural gas will overflow from the transportation channel, causing waste, and easily causing safety accidents, the present invention provides a leakage-proof ship LNG filling equipment.

[0007] The technical solution of the present invention is: a leakage-proof ship LNG filling equipment, including a mounting base, a storage container, a delivery pipeline and a winder; a storage container for storing natural gas is provided on the mounting base, a flange interface is provided at the bottom of the storage container, a gathering place is provided at the bottom of the storage container, and a valve and a pressure pump are provided in the storage container; the flange interface at the bottom of the storage container is connected to the delivery pipeline, and both ends of the delivery pipeline are flange interfaces; a winder for winding up the delivery pipeline is provided on the left side of the mounting base, and a fixing place is provided on the winder; it also includes a hollow circular plate and buoyancy bars; a hollow circular plate is provided in the storage container; a plurality of buoyancy bars are fixed to the bottom of the hollow circular plate.

[0008] As a preferred technical solution of the present invention, the upper portion of the hollow circular plate is concave in design.

[0009] As a preferred technical solution of the present invention, all the buoyancy bars have ends closer to the center of the hollow circular plate that are shorter.

[0010] As a preferred technical solution of the present invention, it also includes a support assembly; several support assemblies are provided at both ends of the conveying pipeline, and the support assemblies located at the same end are connected to each other; the leftmost support assembly includes a fixing bar and a limiting ring; several fixing bars are fixed to the left end of the conveying pipeline; all the fixing bars are commonly fixed to a limiting ring for increasing the support points.

[0011] As a preferred technical solution of the present invention, the closer the restriction ring is to the middle of the conveying pipe, the lower the degree of fit with the conveying pipe.

[0012] As a preferred technical solution of the present invention, it also includes a sealing assembly; sealing assemblies are provided at both ends of the conveying pipeline; the left sealing assembly includes a sealing frame and a sealing buckle; a sealing frame is provided on the left side of the conveying pipeline, and the sealing frame consists of two sealing rings, a shielding ring and a mounting plate, the shielding ring is located between the two sealing rings, and the mounting plate is located on the right part of the right sealing ring; a number of sealing buckles are fixed to the sealing ring on the left side of the sealing frame; the sealing frame mounting plate and all the sealing buckles are provided with mounting holes for latch screws.

[0013] As a preferred technical solution of the present invention, a self-sealing strip I is provided on the bottom of the sealing frame shielding ring, and a plurality of through holes are opened on the self-sealing strip I.

[0014] As a preferred technical solution of the present invention, it also includes a cleaning component; a cleaning component for cleaning the surface of the conveying pipe is installed on the winder; the cleaning component includes a mounting ring, a cleaning ring, a self-priming air bag, bristles, a rotating dial block and an extrusion column; the conveying pipe is a metal hose, and there are grooves on the surface of the conveying pipe; the winder is fixedly connected to the mounting ring through an elastic rope; a cleaning ring is rotatably connected to the mounting ring, and a torsion spring for resetting is provided at the connection between the cleaning ring and the mounting ring, and a dial rod is provided on the cleaning ring; a self-priming air bag is fixed to the cleaning ring; a number of bristles are fixed to the left and right sides of the cleaning ring, and the bristles are facing the center of the conveying pipe; a rotating dial block is rotatably connected to the mounting ring, a friction layer is provided on the rotating dial block, and the rotating dial block cooperates with the dial rod; a number of extrusion columns are fixed to the left side of the mounting ring, and all the extrusion columns are in contact with the self-priming air bag.

[0015] As a preferred technical solution of the present invention, a self-sealing strip II is provided on the self-priming airbag, and a plurality of through holes are provided on the self-sealing strip II.

[0016] As a preferred technical solution of the present invention, it also includes a cleaning sleeve; a plurality of cleaning sleeves are arranged on the conveying pipeline, and a perforated plate is provided at one end of all the cleaning sleeves close to the center of the conveying pipeline.

[0017] Beneficial effect: The present invention restricts the liquefied natural gas in the storage container through the hollow circular plate, so that it cannot shake significantly and can only be transferred upward from the center of the hollow circular plate to the surface of the hollow circular plate, so that the transportation efficiency of the liquefied natural gas is stabilized, and the problem of the liquefied natural gas in the container shaking and affecting the refueling of the ship is avoided.

[0018] The present invention adopts a concave design on the upper part of the hollow circular plate, so that the liquid natural gas transferred to the surface of the hollow circular plate slides toward the center of the hollow circular plate, and the liquid natural gas transferred to the surface of the hollow circular plate returns to the bottom of the hollow circular plate again, thereby preventing the liquid natural gas from staying on the surface of the hollow circular plate and being unable to be transferred.

[0019] The present invention reduces the contact area between the hollow circular plate 5 and the gathering point 2a by using the buoyancy strips at the bottom of the hollow circular plate, leaving a gap between the hollow circular plate 5 and the gathering point 2a, and increasing the overall buoyancy of the hollow circular plate 5. Liquid natural gas can flow between the hollow circular plate 5 and the gathering point 2a. As the liquid natural gas is continuously injected, the buoyancy exerted on the hollow circular plate 5 increases. In this way, the hollow circular plate 5 can float to the surface of the liquid natural gas, thereby restricting the liquid natural gas and avoiding affecting subsequent use.

[0020] The present invention transfers the force originally applied to the connection between the delivery pipe and the ship's filling port to the restriction ring through the restriction ring, and then transfers the force from the restriction ring to the fixing bar, thereby reducing the force that the connection between the delivery pipe and the ship's filling port needs to bear. By designing the restriction ring closer to the center of the delivery pipe, the degree of fit with the delivery pipe is lowered, so that the pulling force is transferred to different restriction rings multiple times, thereby preventing the delivery pipe from being subjected to excessive pulling, which may cause damage to the delivery pipe.

[0021] The present invention wraps the connection between the delivery pipeline and the ship filling port through two sealing rings and a shielding ring of the sealing frame, thereby preventing natural gas from directly leaking out and coming into contact with workers to cause safety accidents.

[0022] The present invention discharges part of the accumulated natural gas through the through hole at the bottom of the self-sealing strip I, and by opening the self-sealing strip I with the opening facing downward, a large amount of natural gas is sprayed downward from the self-sealing strip I, thereby preventing the accumulated natural gas from coming into direct contact with surrounding workers after being sprayed outward.

[0023] The present invention pushes the shift rod by rotating the shift block, so that the cleaning ring rotates clockwise from left to right on the mounting ring, and the self-priming air bag follows the rotation. The torsion spring at the connection between the cleaning ring and the mounting ring begins to be stressed, so that the bristles clean the frost in the groove on the surface of the conveying pipe at different angles, thereby achieving a better cleaning effect.

[0024] The present invention blows the air in the self-priming air bag out from the through hole on the self-sealing strip II to blow the periphery of the cleaning ring, thereby blowing off the frost accumulated around the cleaning ring, thereby preventing the frost from accumulating around the cleaning ring and affecting the brush bristles from cleaning the frost in the grooves on the surface of the conveying pipe.

[0025] The present invention continues to push the cleaning sleeve to move a certain distance through the self-priming airbag, the self-priming airbag is subjected to greater compression, the self-sealing strip II is expanded, and the air in the self-priming airbag passes through the cleaning sleeve orifice plate to blow down the frost remaining on the cleaning sleeve, thereby further improving the frost cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of the leak-proof ship LNG filling equipment disclosed in the present invention.

[0027] Figure 2 A structural cross-sectional view of a storage container disclosed for the leakage-proof ship LNG filling equipment of the present invention.

[0028] Figure 3 This is a schematic diagram of the combined structure of the hollow circular plate and buoyancy bar disclosed in the leakage-proof ship LNG filling equipment of the present invention.

[0029] Figure 4 This is a schematic diagram of the combined structure of the support assembly and the plugging assembly disclosed in the leakage-proof ship LNG filling equipment of the present invention.

[0030] Figure 5 This is a structural cross-sectional view of the sealing frame disclosed in the leakage-proof ship LNG filling equipment of the present invention.

[0031] Figure 6 This is a structural schematic diagram of the cleaning assembly disclosed in the leak-proof ship LNG filling equipment of the present invention.

[0032] Figure 7 A schematic diagram of the partial structure of the cleaning assembly disclosed in the leak-proof ship LNG filling equipment of the present invention.

[0033] Markings in the figure are: 1-mounting seat, 2-storage container, 3-conveying pipe, 4-winding machine, 5-hollow circular plate, 6-buoyancy bar, 101-fixing bar, 102-limiting ring, 110-sealing frame, 111-sealing buckle, 201-mounting ring, 202-cleaning ring, 203-self-priming air bag, 204-bristles, 205-rotating block, 206-extrusion column, 207-cleaning sleeve, 2a-gathering place, 4a-fixing place, 110a-self-sealing strip I, 202a-shift rod, 203a-self-sealing strip II. Implementation Method

[0034] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the present invention. Example

[0035] A leak-proof ship LNG filling equipment, such as Figure 1-3 As shown, it includes a mounting base 1, a storage container 2, a conveying pipe 3 and a winder 4; the storage container 2 is set on the mounting base 1, the bottom of the storage container 2 is provided with a flange interface, the bottom of the storage container 2 is provided with a gathering place 2a, and the storage container 2 is provided with a valve and a pressure pump; the flange interface at the bottom of the storage container 2 is connected to the conveying pipe 3, and both ends of the conveying pipe 3 are flange interfaces; the winder 4 is set on the left side of the mounting base 1, and the winder 4 is provided with a fixing part 4a;

[0036] It also includes a hollow circular plate 5 and buoyancy strips 6; the storage container 2 is provided with a hollow circular plate 5; a plurality of buoyancy strips 6 distributed in an annular shape are fixed to the bottom of the hollow circular plate 5.

[0037] The upper portion of the hollow circular plate 5 is concave in design, so that the liquefied natural gas transferred to the surface of the hollow circular plate 5 slides toward the center of the hollow circular plate 5, and returns to the bottom of the hollow circular plate 5 again, thereby preventing the liquefied natural gas from staying on the surface of the hollow circular plate 5 and being unable to be transferred.

[0038] All the buoyancy bars 6 are shorter at the ends close to the center of the hollow circular plate 5, so as to facilitate the transfer of the liquid natural gas and reduce the contact area with the gathering point 2a.

[0039] Before refueling the ship at sea, one end of the delivery pipe 3 is fixed to the flange interface at the bottom of the storage container 2, and the other end of the delivery pipe 3 is fixed to the filling port of the ship that needs to be refueled. The valve in the storage container 2 is opened, and the pressure pump in the storage container 2 is started to transport the liquefied natural gas in the storage container 2 to the ship that needs to be refueled. When the ship is refueled, the water level of the liquefied natural gas in the storage container 2 begins to drop. As the waves rise and fall, the ship itself swings with the waves, and the liquefied natural gas in the storage container 2 begins to shake, affecting the refueling of the ship's natural gas. At this time, the hollow circular plate 5 stays on the surface of the liquefied natural gas in the storage container 2 and keeps floating up and down. The hollow circular plate 5 is designed to prevent the hollow circular plate 5 from solidifying in the storage container 2. At the same time, the hollow circular plate 5 restricts the liquefied natural gas in the storage container 2, so that it cannot shake significantly and can only be transferred upward from the center of the hollow circular plate 5 to the surface of the hollow circular plate 5, so that the transportation efficiency of the liquefied natural gas is stabilized, and the problem that the liquefied natural gas in the storage container 2 shakes and affects the refueling of the ship is avoided. The upper part of the hollow circular plate 5 is concave, so that the liquefied natural gas transferred to the surface of the hollow circular plate 5 slides toward the center of the hollow circular plate 5, and the liquefied natural gas transferred to the surface of the hollow circular plate 5 returns to the bottom of the hollow circular plate 5 again, so that the liquefied natural gas does not stay on the surface of the hollow circular plate 5 and cannot be transferred.

[0040] After the ship is refueled, the liquefied natural gas in the storage container 2 needs to be replenished. When replenishing the liquefied natural gas in the storage container 2, the hollow circular plate 5 is located at the bottom of the storage container 2 and contacts the gathering point 2a. The replenished liquefied natural gas washes the hollow circular plate 5, making it impossible for the hollow circular plate 5 to float to the surface of the liquefied natural gas. In addition, the contact area between the hollow circular plate 5 and the gathering point 2a will solidify, further preventing the hollow circular plate 5 from floating to the surface of the liquefied natural gas. At this time, the buoyancy bar 6 at the bottom of the hollow circular plate 5 reduces the contact area between the hollow circular plate 5 and the gathering point 2a, leaving a gap between the hollow circular plate 5 and the gathering point 2a, and increasing the overall buoyancy of the hollow circular plate 5. The liquefied natural gas can flow between the hollow circular plate 5 and the gathering point 2a. As the liquefied natural gas continues to be injected, the buoyancy of the hollow circular plate 5 increases, so that the hollow circular plate 5 can float to the surface of the liquefied natural gas, restricting the liquefied natural gas and avoiding affecting subsequent use.

[0041] After the filling of the ship is completed, the end of the conveying pipe 3 originally fixed to the bottom of the storage container 2 is fixed to the fixing portion 4 a , and then the reel 4 is started to reel the conveying pipe 3 . Example

[0042] On the basis of Example 1, Figure 4-5As shown, it also includes a support assembly; three support assemblies are provided at both ends of the conveying pipe 3, and the support assemblies located at the same end are connected to each other; the leftmost support assembly includes a fixing bar 101 and a limiting ring 102; six fixing bars 101 are fixed to the left end of the conveying pipe 3; all the fixing bars 101 are fixed to the limiting ring 102.

[0043] The closer the limiting ring 102 is to the middle of the delivery pipe 3, the lower the degree of fit with the delivery pipe 3, so that the pulling force is transferred to different limiting rings 102 multiple times, preventing the delivery pipe 3 from being pulled too hard and causing damage to the delivery pipe 3.

[0044] It also includes a sealing component; sealing components are provided at both ends of the conveying pipeline 3; the left sealing component includes a sealing frame 110 and a sealing buckle 111; a sealing frame 110 is provided on the left side of the conveying pipeline 3, and the sealing frame 110 consists of two sealing rings, a shielding ring and a mounting plate, the shielding ring is located between the two sealing rings, and the mounting plate is located on the right part of the right sealing ring; six sealing buckles 111 distributed in a ring are fixed to the sealing ring on the left side of the sealing frame 110; mounting holes are provided on the mounting plate of the sealing frame 110 and all the sealing buckles 111.

[0045] A self-sealing strip I110a is provided on the bottom of the shielding ring of the sealing frame 110. Several through holes are opened on the self-sealing strip I110a. Part of the natural gas is screened out through the through holes on the bottom self-sealing strip I110a to prevent the natural gas from expanding the sealing frame 110 and affecting its shielding effect. At the same time, considering that the through holes cannot spray out the accumulated natural gas in time, the sealing frame 110 will still be expanded. At this time, the natural gas accumulated in the sealing frame 110 will first expand the self-sealing strip I110a. Because the self-sealing strip I110a is located at the bottom of the sealing frame 110, a large amount of natural gas will be sprayed downward from the self-sealing strip I110a, preventing the accumulated natural gas from being sprayed out and coming into direct contact with the surrounding staff.

[0046] When a ship is refueling at sea, it will swing due to the influence of waves, and the delivery pipeline 3 will be pulled, causing damage to both ends of the delivery pipeline 3. Natural gas will overflow from the damaged area of ​​the delivery pipeline 3, resulting in waste and easily causing safety accidents. When the ship swings, the delivery pipeline 3 is restricted by the restriction ring 102. When the delivery pipeline 3 is pulled, the connection between the delivery pipeline 3 and the ship's refueling port begins to be subjected to force, and the delivery pipeline 3 squeezes the restriction ring 102. At this time, the force originally applied to the connection between the delivery pipeline 3 and the ship's refueling port is transferred to the restriction ring 102 by the restriction ring 102, and then transferred from the restriction ring 102 to the fixing bar 101, reducing the force that the connection between the delivery pipeline 3 and the ship's refueling port needs to bear. By designing that the closer the restriction ring 102 is to the center of the delivery pipeline 3, the lower the degree of fit with the delivery pipeline 3, the pulling force is transferred to different restriction rings 102 multiple times, thereby preventing the delivery pipeline 3 from being subjected to excessive pulling, which may cause damage to the delivery pipeline 3.

[0047] Taking into account that leakage may occur at the connection between the delivery pipe 3 and the ship's filling port when refueling the ship, and the temperature of natural gas is relatively low (about minus one hundred and sixty degrees), the staff staying around the connection between the delivery pipe 3 and the ship's filling port is likely to cause safety accidents. Therefore, before refueling the ship, when the other end of the delivery pipe 3 is fixed to the ship's filling port that needs to be refueled, the sealing frame 110 is installed at the connection between the delivery pipe 3 and the ship's filling port, the sealing frame 110 mounting plate is fixed to the flange interface of the delivery pipe 3, and the sealing buckle 111 is fixed to the ship's filling port. When natural gas leakage occurs, the two sealing rings and the shielding ring of the sealing frame 110 are used to wrap the connection between the delivery pipe 3 and the ship's filling port to prevent natural gas from leaking directly and coming into contact with the staff to cause a safety accident.

[0048] At the same time, considering that as the amount of natural gas transferred into the sealing frame 110 gradually increases, the sealing frame 110 cannot completely block the leaked natural gas, and the accumulated natural gas will stretch the sealing frame 110, causing the sealing frame 110 to lose its shielding effect. At this time, part of the natural gas is screened out through the through hole at the bottom of the self-sealing strip I110a to prevent the natural gas from stretching the sealing frame 110 and affecting its shielding effect. At the same time, considering that the through hole cannot spray out the accumulated natural gas in time, the sealing frame 110 will still be stretched. At this time, the natural gas accumulated in the sealing frame 110 will first stretch the self-sealing strip I110a. Because the self-sealing strip I110a is located at the bottom of the sealing frame 110, a large amount of natural gas will be sprayed downward from the self-sealing strip I110a, preventing the accumulated natural gas from spraying out and coming into direct contact with the surrounding staff. Example

[0049] On the basis of Example 2, Figure 6-7As shown, it also includes a cleaning assembly; a cleaning assembly is installed on the winder 4; the cleaning assembly includes a mounting ring 201, a cleaning ring 202, a self-priming air bag 203, bristles 204, a rotating dial block 205 and an extrusion column 206; the conveying pipe 3 is a metal hose, and there are grooves on the surface of the conveying pipe 3; the winder 4 is fixedly connected to the mounting ring 201 by an elastic rope; the mounting ring 201 is rotatably connected to the cleaning ring 202, and the connection between the cleaning ring 202 and the mounting ring 201 is provided with a torsion spring, and the cleaning ring 202 is fixed to the mounting ring 201. A shift rod 202a is provided; a self-priming air bag 203 is fixedly connected to the cleaning ring 202; a number of bristles 204 are fixedly connected to the left and right sides of the cleaning ring 202, and the bristles 204 are facing the center of the conveying pipe 3; a rotating shift block 205 is rotatably connected to the mounting ring 201, and a friction layer is provided on the rotating shift block 205, which cooperates with the shift rod 202a; two extrusion columns 206 distributed front and back are fixedly connected to the left side of the mounting ring 201, and all the extrusion columns 206 are in contact with the self-priming air bag 203.

[0050] The self-priming air bag 203 is provided with a self-sealing strip II 203a, and the self-sealing strip II 203a is provided with a plurality of through holes. The air in the self-priming air bag 203 is blown from the through holes on the self-sealing strip II 203a to the periphery of the cleaning ring 202, and the frost accumulated around the cleaning ring 202 is blown off, so as to prevent the frost from accumulating around the cleaning ring 202 and affecting the cleaning of the frost in the groove on the surface of the conveying pipe 3 by the bristles 204.

[0051] It also includes a cleaning sleeve 207; two cleaning sleeves 207 are provided on the conveying pipe 3 in a bilaterally symmetrical manner, and all the cleaning sleeves 207 are provided with a perforated plate at one end close to the center of the conveying pipe 3.

[0052] Due to the low temperature of natural gas, a large amount of frost covers the surface of the delivery pipe 3, which keeps the delivery pipe 3 in a low temperature state for a long time, affecting its service life. After the ship's refueling is completed, the frost on the surface of the delivery pipe 3 needs to be cleaned, but because the temperature of the delivery pipe 3 itself is low at this time, it is necessary to wear protective gear for cleaning, which is more troublesome, and the protective gear is generally more bloated, and a good cleaning effect cannot be obtained during cleaning. When the reel 4 is started to reel the delivery pipe 3, the frost on the surface of the delivery pipe 3 is pushed down by the cleaning ring 202 on the mounting ring 201, but there are grooves on the surface of the delivery pipe 3, and the cleaning ring 202 cannot push down all the frost on the surface of the delivery pipe 3. At this time, the frost in the grooves on the surface of the delivery pipe 3 is cleaned by the bristles 204. Considering that there are many grooves on the surface of the delivery pipe 3, the bristles 204 cannot directly clean the frost. At this time, the delivery pipe 3 is in contact with the friction layer on the rotating dial block 205. When the reel 4 reels the conveying pipe 3, the conveying pipe 3 drives the rotating block 205 to rotate clockwise from the front to the back. When the rotating block 205 rotates, the rotating block 205 pushes the lever 202a, causing the cleaning ring 202 to rotate clockwise from the left to the right on the mounting ring 201. The self-suction air bag 203 rotates accordingly, and the torsion spring at the connection between the cleaning ring 202 and the mounting ring 201 begins to be stressed, causing the bristles 204 to brush the conveying pipe at different angles. 3, when the rotating block 205 is disengaged from the shift rod 202a, the torsion spring at the connection between the cleaning ring 202 and the mounting ring 201 will drive the cleaning ring 202 and the self-priming air bag 203 to rotate counterclockwise to reset. At this time, the self-priming air bag 203 will automatically inhale air. In this way, when the rotating block 205 continues to rotate on the conveying pipe 3, the rotating block 205 will repeatedly push the cleaning ring 202 and the self-priming air bag 203 to rotate, thereby achieving a better cleaning effect.

[0053] Taking into account that after the cleaning ring 202 pushes down the frost on the surface of the conveying pipe 3, the pushed down frost accumulates around the cleaning ring 202, affecting the bristles 204 to clean the frost in the groove on the surface of the conveying pipe 3, when the self-priming air bag 203 is not rotating, the self-priming air bag 203 is in contact with the extrusion column 206, and when the self-priming air bag 203 rotates, the self-priming air bag 203 is squeezed by the extrusion column 206, and the air in the self-priming air bag 203 is squeezed toward the self-sealing strip II 203a, and the air in the self-priming air bag 203 is blown out from the through hole on the self-sealing strip II 203a, blowing around the cleaning ring 202 to blow off the frost accumulated around the cleaning ring 202, thereby preventing frost from accumulating around the cleaning ring 202 and affecting the bristles 204 to clean the frost in the groove on the surface of the conveying pipe 3.

[0054] At the same time, considering that the area of ​​the conveying pipeline 3 covered by the support assembly cannot be cleaned, when the self-priming air bag 203 contacts the orifice plate of the cleaning sleeve 207, the self-priming air bag 203 pushes the cleaning sleeve 207 toward the area covered by the support assembly, and pushes the frost in the area covered by the support assembly through the cleaning sleeve 207, pushing the frost in the area covered by the support assembly down, and part of the frost remains on the cleaning sleeve 207. When the cleaning sleeve 207 contacts the shielding ring of the sealing frame 110, the self-priming air bag 203 continues to push the cleaning sleeve 207 to move a certain distance, and the self-priming air bag 203 is subjected to greater compression, and the self-sealing strip II 203a is stretched open. The air in the self-priming air bag 203 passes through the orifice plate of the cleaning sleeve 207, blowing down the frost remaining on the cleaning sleeve 207, thereby further improving the cleaning effect of the frost.

[0055] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A leak-proof ship LNG filling equipment, comprising a mounting seat (1), a storage container (2), a delivery pipeline (3) and a reel (4); a storage container (2) for storing natural gas is provided on the mounting seat (1), a flange interface is provided at the bottom of the storage container (2), a gathering portion (2a) is provided at the bottom of the storage container (2), and a valve and a pressure pump are provided in the storage container (2); the flange interface at the bottom of the storage container (2) is connected to the delivery pipeline (3), and both ends of the delivery pipeline (3) are flange interfaces; a reel (4) for reeling the delivery pipeline (3) is provided on the left side of the mounting seat (1), and a fixing portion (4a) is provided on the reel (4); the characteristics are: It also includes a hollow circular plate (5) and buoyancy strips (6); the hollow circular plate (5) is arranged in the storage container (2); a plurality of buoyancy strips (6) are fixed to the bottom of the hollow circular plate (5); The upper portion of the hollow circular plate (5) is concave in design; The conveying pipe (3) further comprises a support assembly; a plurality of support assemblies are provided at both ends of the conveying pipe (3), and the support assemblies at the same end are connected to each other; the leftmost support assembly comprises a fixing bar (101) and a limiting ring (102); a plurality of fixing bars (101) are fixedly connected to the left end of the conveying pipe (3); all the fixing bars (101) are fixedly connected to a limiting ring (102) for increasing the support points; The cleaning assembly is also included; a cleaning assembly for cleaning the surface of the conveying pipe (3) is installed on the reel (4); the cleaning assembly includes a mounting ring (201), a cleaning ring (202), a self-priming air bag (203), bristles (204), a rotating dial block (205) and an extrusion column (206); the conveying pipe (3) is a metal hose, and a groove is present on the surface of the conveying pipe (3); the reel (4) is fixedly connected to the mounting ring (201) through an elastic rope; the cleaning ring (202) is rotatably connected to the mounting ring (201), and a torsion spring for resetting is provided at the connection between the cleaning ring (202) and the mounting ring (201) A shifting rod (202a) is provided on the cleaning ring (202); a self-priming air bag (203) is fixedly connected to the cleaning ring (202); a plurality of bristles (204) are fixedly connected to the left and right sides of the cleaning ring (202), and the bristles (204) face the center of the conveying pipe (3); a rotating shifting block (205) is rotatably connected to the mounting ring (201), a friction layer is provided on the rotating shifting block (205), and the rotating shifting block (205) cooperates with the shifting rod (202a); a plurality of extrusion columns (206) are fixedly connected to the left side of the mounting ring (201), and all the extrusion columns (206) are in contact with the self-priming air bag (203).

2. The anti-leakage ship LNG filling equipment according to claim 1, characterized in that: All the buoyancy bars (6) have shorter ends closer to the center of the hollow circular plate (5).

3. The anti-leakage ship LNG filling equipment according to claim 2, characterized in that: The closer the restriction ring (102) is to the middle of the delivery pipe (3), the lower the degree of fit with the delivery pipe (3).

4. The anti-leakage ship LNG filling equipment according to claim 3, characterized in that: The invention also includes a plugging assembly; both ends of the conveying pipe (3) are provided with a plugging assembly; the left plugging assembly includes a sealing frame (110) and a sealing buckle (111); a sealing frame (110) is provided on the left side of the conveying pipe (3), and the sealing frame (110) is composed of two sealing rings, a shielding ring and a mounting plate, the shielding ring is located between the two sealing rings, and the mounting plate is located on the right side of the right sealing ring; a plurality of sealing buckles (111) are fixed to the sealing ring on the left side of the sealing frame (110); the mounting plate of the sealing frame (110) and all the sealing buckles (111) are provided with mounting holes for latch screws.

5. The anti-leakage ship LNG filling equipment according to claim 4, characterized in that: A self-sealing strip I (110a) is provided on the bottom of the shielding ring of the sealing frame (110), and a plurality of through holes are opened on the self-sealing strip I (110a).

6. The anti-leakage ship LNG filling equipment according to claim 5, characterized in that: A self-sealing strip II (203a) is provided on the self-priming airbag (203), and a plurality of through holes are provided on the self-sealing strip II (203a).

7. The anti-leakage ship LNG filling equipment according to claim 6, characterized in that: It also includes a cleaning sleeve (207); a plurality of cleaning sleeves (207) are provided on the conveying pipe (3), and a perforated plate is provided at one end of all the cleaning sleeves (207) close to the center of the conveying pipe (3).

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