An efficient filling equipment for LNG carriers

Abstract

The present invention relates to the technical field of LNG filling equipment, and specifically to an efficient filling equipment for LNG transport ships, including a filling head and a transport pipe. The filling head is provided with an environmental detection mechanism, a locking mechanism, a transmission assembly and an automatic separation mechanism. The locking mechanism includes a push ring and a plurality of support arms. The automatic separation mechanism includes a support seat, a drive block, a rotating drive motor, a first connector and a second connector. The present application fixes the filling head through the locking mechanism, and performs real-time detection of the transportation status of liquefied natural gas through the environmental detection mechanism. The rotating drive motor of the automatic separation mechanism drives the movement of the drive block, and the drive block drives the second connector to move the second connector and move the second connector away from each other, so that the valve core cannot abut against each other. The two valve cores are respectively used to block the inside of the first connector and the second connector, thereby protecting the device and avoiding the occurrence of safety accidents.

Description

Technical Field

[0001] The present invention relates to the technical field of LNG filling equipment, and in particular to a high-efficiency filling equipment for LNG transport ships. Background Art

[0002] LNG is the abbreviation of liquefied natural gas (Liquefied Natural Gas). The main component of liquefied natural gas is methane. It is recognized as the cleanest fossil energy on the earth. It is colorless, odorless, non-toxic and non-corrosive. Its volume is about 1 / 625 of the volume of the same amount of gaseous natural gas, and the mass of liquefied natural gas is only about 45% of the same volume of water. In the prior art, LNG is generally transported through power ships. When the filling device of the LNG power ship fills the hull with liquefied natural gas, due to the different cabin heights of the power ship, and the cabin height of the power ship is usually higher than the height of the filling device, the existing power ship filling device usually uses an inclined pipe to transport the liquefied natural gas in the gas storage tank to the cabin gas storage tank for filling. Due to the use of an inclined pipe, the length of the delivery pipe is relatively long, so the surface area of ​​the delivery pipe is large and the liquefied gas is transported in the delivery pipe for a long time, resulting in the liquefied gas being greatly affected by the temperature in the delivery pipe, resulting in serious gasification of the liquefied gas, and the air pressure in the delivery pipe increases, which is prone to safety accidents.

[0003] Chinese patent CN202110018166.6 discloses a filling device for LNG-powered ships, including a filling vehicle body, a mounting platform is provided on the top of the filling vehicle body, a gas storage tank and an air pump are provided on the top of the mounting platform, a connecting pipe is fixedly connected between the inner side wall of the gas storage tank and the input end of the air pump, and the output end of the air pump is fixedly connected with the mounting pipe through a joint, a connecting seat is fixedly installed on the top of the side of the filling vehicle body, and a delivery pipe is fixedly connected to the inner side wall of the heating box away from the mounting pipe, and a filling piston is provided at one end of the delivery pipe away from the heating box. A control mechanism, an environmental detection module, an alarm module and a storage module are also provided inside the control box. This patent controls the height of the heating box so that the delivery pipe and the filling piston can be flush with the cabin input port, thereby reducing the length of the delivery pipe and avoiding the vaporization of liquefied gas due to heat. At the same time, the environmental detection module and the alarm module are used to monitor the filling process of liquefied natural gas in real time to prevent safety accidents. However, it cannot protect the device and needs to be controlled manually. Once an operation error occurs, it will lead to a result that is difficult to recover. Summary of the invention

[0004] Based on this, it is necessary to provide an efficient filling equipment for LNG transport ships in response to the existing technical problems.

[0005] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0006] A high-efficiency filling equipment for LNG transport ships, comprising a filling head and a transport pipe sleeved on the filling head, the filling head is provided with an environmental detection mechanism, a locking mechanism, a transmission assembly and an automatic separation mechanism, the filling head is a cylindrical structure, the environmental detection mechanism is located at the bottom of the filling head, the locking mechanism comprises a push ring and a plurality of support arms, the push ring is slidably sleeved on the filling head, all the support arms are arranged around the axis of the filling head at equal distances, and all the support arms are transmission-connected with the push ring, the automatic separation mechanism is located between the filling head and the transport pipe, the automatic separation mechanism comprises a support seat, a drive block, a rotary drive motor, a first connector and a second connector, the support seat is located beside the bottom of the filling head, and the rotary drive motor is located in the middle of the support seat On one end, the driving block is slidably located on the support seat, and the driving block is transmission-connected to the rotating driving motor, the first connecting head is fixedly connected to one end of the support seat, and one end of the first connecting head is connected to the transport pipe, the second connecting head is fixedly connected to the driving block, and one end of the second connecting head is connected to the filling head, the first connecting head and the second connecting head have the same structure, the first connecting head and the second connecting head are arranged together in a mirror-symmetrical state, valve cores are provided in the first connecting head and the second connecting head, and the valve cores of the first connecting head and the second connecting head are abutted against each other, when the first connecting head and the second connecting head are separated from each other, the valve core will block the first connecting head and the second connecting head, and the transmission assembly is located between the driving block and the push ring.

[0007] Preferably, the filling head includes an inner tube and an outer shell, the filling ring is sleeved on the outer shell, the outer shell is provided with mounting grooves corresponding to the number of support arms, all mounting grooves pass through the outer shell, all mounting grooves are arranged at equal distances around the axis of the outer shell, each mounting groove is provided with a support shaft placed in a horizontal state, all support arms can be rotatably sleeved on the support shafts of multiple mounting grooves in sequence, and a first clamping joint is provided on one side of all support arms close to the axis of the filling head.

[0008] Preferably, the push ring is a circular ring structure, and the inner wall of the push ring is provided with a clip block that matches the installation groove, and the inner wall of the clip block is provided with raised portions and recessed portions in sequence from left to right along the axis of the push ring, and the top of the support arm is provided with a recessed section that matches the raised portions and recessed portions inside the push ring, and the raised portions and recessed portions of the clip block and the recessed section of the support arm are all processed with arc angles.

[0009] Preferably, the transmission assembly includes a first rack, a support block, a second rack, a gear and a rotating seat, the rotating seat is located at the top of the filling head and away from one end of the mounting groove, the gear is sleeved on the rotating seat, the support block is fixedly connected to the top of the push ring, the first rack is horizontally fixedly connected to the support block, the first rack is located above the gear and is meshed with the first rack and the gear, the second rack is horizontally fixedly connected to the top of the driving block close to the side of the filling head, the second rack is located below the gear and is meshed with the gear.

[0010] Preferably, a support frame and a funnel-shaped sealing port are provided inside the first connecting head and the second connecting head, the support frame is fixedly connected to the center of the first connecting head and the second connecting head, sliding holes are provided on the support frames of the first connecting head and the second connecting head, the valve cores of the first connecting head and the second connecting head can be slidably mounted in the sliding holes, and elastic parts are provided on the valve cores, and a sealing head matching the sealing port is also provided on the valve core, a supporting part is provided on the sealing heads of the first connecting head and the second connecting head, the sealing heads are conical structures, and matching sleeves are provided on the first connecting head and the second connecting head.

[0011] Preferably, a clamping groove is provided on the top holding piece of the first connector, and a second clamping joint is provided on the top holding piece of the second connector, and the top holding pieces of the first connector and the second connector can be sleeved together.

[0012] Preferably, a retractable connecting tube is sleeved between the first connecting head and the second connecting head.

[0013] Preferably, a recovery pipe is sleeved on the side wall of the connecting pipe, and the recovery pipe is connected to an external liquefied natural gas recovery mechanism.

[0014] Preferably, a screw rod placed in a horizontal state is provided between the two ends of the support seat, the output shaft of the rotary drive motor passes through one end of the support seat and is fixedly connected to the screw rod, the drive block is sleeved on the screw rod and cooperates with its thread, a slide rail is provided at the bottom of the support seat, and a slide bar matching the slide rail is provided at the bottom of the drive block.

[0015] Preferably, a first fixing plate and a second fixing plate are also provided on the support seat, the first fixing plate is vertically located on one end of the support seat close to the first connecting head, the second fixing plate is vertically fixedly connected to the driving block, and a plurality of fixing holes are provided on the first fixing plate and the second fixing plate, and the first connecting head and the second connecting head are respectively installed on the first fixing plate and the second fixing plate through the fixing holes.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present application arranges the filling head sleeve on the liquid injection head of the transport ship, and then fixes the filling head through a locking mechanism, thereby improving the stability of the connection between the filling head and the liquid injection head of the transport ship, and ensuring the safety of liquefied natural gas transmission; at the same time, the transportation status of the liquefied natural gas is detected in real time through the environmental detection mechanism. When leakage or other emergencies of the liquefied natural gas are detected, the rotation drive motor of the automatic separation mechanism is automatically triggered to drive the movement of the drive block. The drive block drives the second connector to move the second connector away from the first connector, so that the valve core cannot abut against each other, so that the two valve cores respectively block the inside of the first connector and the second connector, which plays a role in protecting the device and avoiding the occurrence of safety accidents. At the same time, through the setting of the transmission component, when the first connector and the second connector are separated from each other, the locking mechanism will be driven to relax, so that the filling head and the liquid injection head are separated, ensuring the safety of the transport ship, and further avoiding the occurrence of safety accidents. Through the setting of the automatic separation mechanism, the environmental detection mechanism and the locking mechanism, the filling is safer and more stable, so that the transport ship can be filled more efficiently.

[0018] 2. In the present application, the liquid injection head of the transport ship is sleeved on the inner tube of the filling head, and the pushing ring is pushed to displace the pushing ring along the axis of the filling head, thereby driving the support arm located on the outer shell, so that all the support arms rotate around the direction of the support axis, so that the first clamping joint on the support arm is fixed to the liquid injection head of the transport ship, thereby improving the stability of the connection between the liquid injection head and the filling head, preventing the occurrence of safety accidents, and the installation groove provides space for accommodating the support arm, which is convenient for its installation and maintenance.

[0019] 3. The present application sets a clamping block of the push ring so that the push ring can slide better on the filling head. When the raised portion and the recessed portion of the clamping block contact the support arm, the raised portion contacts the recessed section of the support arm, which drives the support arm to tilt around the support axis, so that the first clamping joint of the support arm is away from the filling head. When the recessed portion contacts the recessed section of the support arm, the support arm is driven to move around the support axis toward the axial direction of the filling head, so that the first clamping joint of the support arm is clamped together with the filling head, thereby fixing the filling head. At the same time, through the setting of the arc angle treatment, the clamping block can slide more smoothly on the support arm, and the clamping block and the support arm will not be stuck together, thereby improving the stability of the equipment operation.

[0020] 4. In the present application, after the driving block is driven to move by the rotating driving motor, the driving block will drive the movement of the second rack fixedly connected thereto, and the movement of the second rack will in turn drive the rotation of the gear meshing with it, and the rotation of the gear will drive the rotation of the first rack meshing with it, and the movement of the first rack will drive the movement of the push ring. Since the push ring is slidably connected to the filling head through the clamping block, the first rack causes the push ring to move along the axial direction of the filling head, so that the protruding portion of the clamping block of the push ring contacts the recessed section of the support arm, thereby driving all the support arms to tilt up, so that the first clamping joints of all the support arms are away from the filling head, thereby separating the filling head and the filling head, thereby avoiding the occurrence of safety accidents.

[0021] 5. In the present application, the sleeves of the first connector and the second connector are sleeved together, so that liquefied natural gas will not leak during transportation. At this time, the top holding members of the valve cores of the first connector and the second connector are in contact with each other, so that the two valve cores move along the axial direction of the sliding holes of the first connector and the second connector respectively, so that the plugging heads of the valve cores of the first connector and the second connector cannot fit with the inner wall of the plugging port, and the plugging heads will compress the elastic member on the support frame. At this time, the liquefied natural gas of the first connector and the second connector can pass normally; when the first connector When the first connector and the second connector are away from each other, since the supporting parts of the valve cores of the first connector and the second connector cannot abut against each other, the elastic part will reset. The reset of the elastic part will drive the sealing heads of the first connector and the second connector to move toward the inner wall of the sealing port until the sealing heads of the first connector and the second connector are fitted with the inner wall of the sealing port. At this time, the liquefied natural gas cannot pass through normally. Through the setting of the sealing heads, the liquefied natural gas in the first connector and the second connector cannot leak out, ensuring that there will be no further leakage and avoiding the occurrence of safety accidents.

[0022] 6. The present application provides a snap-fit ​​groove and a second snap-fit ​​joint so that the top holding members of the first connector and the second connector can be snap-fitted together, thereby increasing the connection strength when they are initially abutted against each other, thereby preventing the first connector and the second connector from being separated due to shaking, thereby preventing leakage of the internal liquefied natural gas.

[0023] 7. The present application provides a retractable connecting pipe so that the liquefied natural gas between the first connector and the second connector can be collected, thereby reducing the occurrence of potential safety hazards.

[0024] 8. The present application can recycle and reuse the liquefied natural gas in the connecting pipe by setting up the recovery pipe, thereby reducing the waste of liquefied natural gas and reducing cost expenditure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present application;

[0026] Figure 2 is a schematic diagram of the cross-sectional structure when the first connector and the second connector of the present application are away from each other;

[0027] Figure 3 It is a schematic cross-sectional structure diagram of the first connector and the second connector of the present application when they are sleeved together;

[0028] Figure 4 It is a three-dimensional structural schematic diagram of the filling head and the push ring of the present application;

[0029] Figure 5 It is a three-dimensional structural schematic diagram of the filling head of the present application;

[0030] Figure 6 It is a three-dimensional structural schematic diagram of the support base, the first fixing plate and the second fixing plate of the present application;

[0031] Figure 7 It is a three-dimensional structural schematic diagram of the valve cores of the first connector and the second connector of the present application;

[0032] Figure 8 It is a three-dimensional structural schematic diagram of the connecting pipe and the recovery pipe of the present application;

[0033] Fig. 9 is a side view of the first connector of the present application;

[0034] Fig.10 This application Figure 2 The enlarged schematic diagram of point A in the middle;

[0035] Fig.11 This application Figure 2 The enlarged schematic diagram of point B in the middle;

[0036] The numbers in the figure are:

[0037] 1-filling head; 1a-inner tube; 1b-outer shell; 1b1-mounting slot; 1b2-support shaft; 1c-transport tube; 1d-environmental detection mechanism;

[0038] 2-locking mechanism; 2a-pushing ring; 2a1-clamping block; 2a2-protruding portion; 2a3-recessed portion; 2b-supporting arm; 2b1-first clamping joint; 2b2-recessed section;

[0039] 3-transmission assembly; 3a-support block; 3a1-first rack; 3b-second rack; 3c-rotating seat; 3c1-gear;

[0040] 4-automatic separation mechanism; 4a-support seat; 4a1-driving block; 4a2-sliding bar; 4a3-rotation driving motor; 4a4-screw rod; 4a5-sliding rail; 4a6-first fixing plate; 4a7-second fixing plate; 4a8-fixing hole; 4b-first connector; 4b1-support frame; 4b2-sealing port; 4b3-sleeve; 4c-second connector; 4d-valve core; 4d1-elastic member; 4d2-top holding member; 4d3-clamping groove; 4d4-second clamping joint; 4d5-plugging head; 4e-connecting pipe; 4e1-recovery pipe;

[0041] 5- Injection head. DETAILED DESCRIPTION

[0042] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0043] like Figure 1-11 As shown, this application provides:

[0044] A high-efficiency filling equipment for LNG carriers comprises a filling head 1 and a transport pipe 1c sleeved on the filling head 1, the filling head 1 is provided with an environment detection mechanism 1d, a locking mechanism 2, a transmission assembly 3 and an automatic separation mechanism 4, the filling head 1 is a cylindrical structure, the environment detection mechanism 1d is located at the bottom of the filling head 1, the locking mechanism 2 comprises a push ring 2a and a plurality of support arms 2b, the push ring 2a is slidably sleeved on the filling head 1, all the support arms 2b are arranged around the axis of the filling head 1 at equal distances, and all the support arms 2b are transmission-connected with the push ring 2a, the automatic separation mechanism 4 is located between the filling head 1 and the transport pipe 1c, the automatic separation mechanism 4 comprises a support seat 4a, a drive block 4a1, a rotation drive motor 4a3, a first connector 4b and a second connector 4c, the support seat 4a is located beside the bottom of the filling head 1, and the rotation drive motor 4a3 is located on one end of the support seat 4a, The driving block 4a1 is slidably located on the support seat 4a, and the driving block 4a1 is transmission connected to the rotating driving motor 4a3, the first connecting head 4b is fixedly connected to one end of the support seat 4a, and one end of the first connecting head 4b is connected to the transport pipe 1c, the second connecting head 4c is fixedly connected to the driving block 4a1, and one end of the second connecting head 4c is connected to the filling head 1, the first connecting head 4b and the second connecting head 4c have the same structure, the first connecting head 4b and the second connecting head 4c are arranged together in a mirror-symmetrical state, valve cores 4d are provided in the first connecting head 4b and the second connecting head 4c, and the valve cores 4d of the first connecting head 4b and the second connecting head 4c are abutted against each other, when the first connecting head 4b and the second connecting head 4c are separated from each other, the valve core 4d will block the first connecting head 4b and the second connecting head 4c, and the transmission assembly 3 is located between the driving block 4a1 and the pushing ring 2a.

[0045] Based on the above embodiments, although the environmental detection module can monitor the filling process of liquefied natural gas in real time to prevent safety accidents, it cannot protect the device and needs to be controlled manually. Once an operation error occurs, it will lead to a result that is difficult to recover. The technical problem that this application wants to solve is how the device can automatically protect the connection status of the device. To this end, this application sets the filling head 1 on the liquid injection head 5 of the transport ship, and then fixes the filling head 1 through the locking mechanism 2, and moves the filling head 1 along the axis of the filling head 1 by pulling the push ring 2a, so as to control the support arm 2b to clamp the liquid injection head 5 on the transport ship, thereby improving the stability of the connection between the filling head 1 and the liquid injection head 5 of the transport ship, and ensuring the safety of liquefied natural gas transmission;

[0046] At the same time, the transportation status of liquefied natural gas is detected in real time through the environmental detection mechanism 1d. When leakage or other emergencies of liquefied natural gas are detected, the automatic separation mechanism 4 is automatically triggered. The rotating drive motor 4a3 of the automatic separation mechanism 4 drives the movement of the drive block 4a1 connected thereto. The movement of the drive block 4a1 drives the second connector 4c connected thereto. The second connector 4c and the first connector 4b are moved away from each other, so that the valve cores 4d in the second connector 4c and the first connector 4b are moved away from each other, so that the valve cores 4d cannot abut against each other, so that the two valve cores 4d are respectively connected to the first connector 4c. The interior of the connector 4b and the second connector 4c are sealed, so that the liquefied natural gas in the transport pipe 1c cannot be transported any further, thereby protecting the device and effectively avoiding the occurrence of safety accidents. At the same time, through the setting of the transmission component 3, when the first connector 4b and the second connector 4c are separated from each other, the locking mechanism 2 will be loosened, so that the filling head 1 and the injection head 5 are separated, ensuring the safety of the transport ship and further avoiding the occurrence of safety accidents. Through the setting of the automatic separation mechanism 4, the environmental detection mechanism 1d and the locking mechanism 2, the filling is safer and more stable, so that the transport ship can be filled more efficiently.

[0047] like Figure 2 , Figure 4 and Figure 5 As shown, further:

[0048] The filling head 1 includes an inner tube 1a and an outer shell 1b, and the filling ring is sleeved on the outer shell 1b. The outer shell 1b is provided with mounting grooves 1b1 corresponding to the number of support arms 2b. All mounting grooves 1b1 pass through the outer shell 1b, and all mounting grooves 1b1 are arranged around the axis of the outer shell 1b at equal distances. A support shaft 1b2 placed in a horizontal state is arranged in each mounting groove 1b1. All support arms 2b can be rotatably sleeved on the support shafts 1b2 of multiple mounting grooves 1b1 in sequence, and a first clamping joint 2b1 is provided on one side of all support arms 2b close to the axis of the filling head 1.

[0049] Based on the above embodiments, the technical problem that the present application intends to solve is how to install the support arm 2b on the filling head 1. To this end, the present application sleeves the liquid injection head 5 of the transport ship on the inner tube 1a of the filling head 1, and pushes the push ring 2a to displace the push ring 2a along the axis of the filling head 1, thereby driving the support arm 2b located on the outer shell 1b, so that all the support arms 2b rotate around the direction of the support shaft 1b2, so that the first clamping joint 2b1 on the support arm 2b is fixed to the liquid injection head 5 of the transport ship, thereby improving the stability of the connection between the liquid injection head 5 and the filling head 1, and preventing the occurrence of safety accidents. The installation groove 1b1 provides a space for accommodating the support arm 2b, which is convenient for its installation and maintenance.

[0050] like Figure 2 , Figure 4 and Figure 5 As shown, further:

[0051] The pushing ring 2a is a circular ring structure, and the inner wall of the pushing ring 2a is provided with a clamping block 2a1 that matches the mounting groove 1b1, and the inner wall of the clamping block 2a1 is provided with a raised portion 2a2 and a recessed portion 2a3 from left to right along the axis of the pushing ring 2a, and the top of the support arm 2b is provided with a recessed section 2b2 that matches the raised portion 2a2 and the recessed portion 2a3 inside the pushing ring 2a, and the raised portion 2a2 and the recessed portion 2a3 of the clamping block 2a1 and the recessed section 2b2 of the support arm 2b are all processed with arc angles.

[0052] Based on the above embodiments, the technical problem that the present application aims to solve is how to connect the support arm 2b with the push ring 2a in a transmission manner. To this end, the present application sets the clamping block 2a1 of the push ring 2a so that the push ring 2a can slide better on the filling head 1. When the protruding portion 2a2 and the recessed portion 2a3 of the clamping block 2a1 contact the support arm 2b, the protruding portion 2a2 contacts the recessed section 2b2 of the support arm 2b, which drives the support arm 2b to tilt around the support shaft 1b2, so that the first clamping joint 2b1 of the support arm 2b is away from the injection head 5. When the recessed portion 2a3 contacts the recessed section 2b2 of the support arm 2b, it drives the support arm 2b to move around the support shaft 1b2 toward the axial direction of the filling head 1, so that the first clamping joint 2b1 of the support arm 2b is clamped together with the injection head 5, thereby fixing the injection head 5. At the same time, through the setting of the arc angle treatment, the clamping block 2a1 can slide on the support arm 2b more smoothly, and the clamping block 2a1 will not be stuck with the support arm 2b, thereby improving the stability of the equipment operation.

[0053] like Figure 4-6 and Fig.11 As shown, further:

[0054] The transmission assembly 3 includes a first rack 3a1, a support block 3a, a second rack 3b, a gear 3c1 and a rotating seat 3c. The rotating seat 3c is located at the top of the filling head 1 and away from one end of the mounting groove 1b1. The gear 3c1 is sleeved on the rotating seat 3c. The support block 3a is fixedly connected to the top of the push ring 2a. The first rack 3a1 is fixedly connected to the support block 3a in a horizontal state. The first rack 3a1 is located above the gear 3c1 and is meshed with the first rack 3a1 and the gear 3c1. The second rack 3b is fixedly connected to the top of the driving block 4a1 close to the filling head 1 in a horizontal state. The second rack 3b is located below the gear 3c1 and is meshed with the gear 3c1.

[0055] Based on the above embodiments, the technical problem that the present application intends to solve is how the transmission assembly 3 operates. To this end, the present application drives the driving block 4a1 to move by rotating the driving motor 4a3, and the driving block 4a1 drives the movement of the second rack 3b fixedly connected thereto, and the movement of the second rack 3b drives the rotation of the gear 3c1 meshed with it, and the rotation of the gear 3c1 drives the rotation of the first rack 3a1 meshed with it, and the movement of the first rack 3a1 drives the movement of the push ring 2a. Since the push ring 2a is slidably connected to the filling head 1 through the clamping block 2a1, the first rack 3a1 makes the push ring 2a move along the axial direction of the filling head 1, so that the protruding portion 2a2 of the clamping block 2a1 of the push ring 2a contacts the concave section 2b2 of the support arm 2b, thereby driving the tilting of all the support arms 2b, so that the first clamping joints 2b1 of all the support arms 2b are away from the injection head 5, so that the filling head 1 and the injection head 5 are separated, thereby avoiding the occurrence of safety accidents.

[0056] like Figure 3 , Fig. 9 and Fig.10 As shown, further:

[0057] The first connecting head 4b and the second connecting head 4c are both provided with a support frame 4b1 and a funnel-shaped plugging port 4b2 inside, the support frame 4b1 is fixedly connected to the center of the first connecting head 4b and the second connecting head 4c, and sliding holes are provided on the support frames 4b1 of the first connecting head 4b and the second connecting head 4c, the valve cores 4d of the first connecting head 4b and the second connecting head 4c can be slidably sleeved in the sliding holes, and the valve cores 4d are both provided with elastic parts 4d1, and the valve cores 4d are also provided with a plugging head 4d5 that matches the plugging port 4b2, and the plugging heads 4d5 of the first connecting head 4b and the second connecting head 4c are both provided with a supporting part 4d2, and the plugging head 4d5 has a conical structure, and the first connecting head 4b and the second connecting head 4c are both provided with sleeves 4b3 that match each other.

[0058] Based on the above embodiments, the technical problem that the present application intends to solve is how the valve core 4d can automatically block the first connector 4b and the second connector 4c. To this end, the present application sleeves 4b3 of the first connector 4b and the second connector 4c are mutually sleeved together, so that the liquefied natural gas will not leak during transportation. At this time, the top holding parts 4d2 of the valve cores 4d of the first connector 4b and the second connector 4c are mutually abutted, so that the two valve cores 4d move along the axial direction of the sliding holes of the first connector 4b and the second connector 4c respectively, so that the plugging heads 4d5 of the valve cores 4d of the first connector 4b and the second connector 4c cannot fit with the inner wall of the plugging port 4b2, and the plugging heads 4d5 will compress the elastic part 4d1 on the support frame 4b1, and at this time, the liquefied natural gas of the first connector 4b and the second connector 4c can pass normally;

[0059] When the first connector 4b and the second connector 4c move away from each other, since the supporting parts 4d2 of the valve cores 4d of the first connector 4b and the second connector 4c cannot abut against each other, the elastic part 4d1 will reset. The reset of the elastic part 4d1 will drive the sealing heads 4d5 of the first connector 4b and the second connector 4c to move toward the inner wall of the sealing port 4b2 until the sealing heads 4d5 of the first connector 4b and the second connector 4c fit with the inner wall of the sealing port 4b2. At this time, the liquefied natural gas cannot pass through normally. Through the setting of the sealing head 4d5, the liquefied natural gas in the first connector 4b and the second connector 4c cannot leak out, ensuring that there will be no further leakage and avoiding the occurrence of safety accidents.

[0060] like Figure 3 , Figure 7 and Fig.10 As shown, further:

[0061] The top holding piece 4d2 of the first connector 4b is provided with a clamping groove 4d3, and the top holding piece 4d2 of the second connector 4c is provided with a second clamping joint 4d4. The top holding pieces 4d2 of the first connector 4b and the second connector 4c can be sleeved together.

[0062] Based on the above embodiments, the technical problem that the present application intends to solve is how to connect the top holding piece 4d2 of the first connector 4b and the second connector 4c. To this end, the present application arranges the clamping groove 4d3 and the second clamping joint 4d4 so that the top holding piece 4d2 of the first connector 4b and the second connector 4c can be clamped together, so that when they are initially abutted together, the connection strength can be improved to avoid the separation of the first connector 4b and the second connector 4c due to shaking, which causes the internal liquefied natural gas to leak.

[0063] like Figure 2 , Figure 3 and Figure 8 As shown, further:

[0064] A retractable connecting tube 4e is sleeved between the first connecting head 4b and the second connecting head 4c.

[0065] Based on the above embodiment, when the first connector 4b and the second connector 4c are separated, liquefied natural gas will remain between the first connector 4b and the second connector 4c. The leakage of this part of liquefied natural gas may cause safety hazards. The technical problem that this application wants to solve is how to prevent the leakage of liquefied natural gas between the first connector 4b and the second connector 4c. To this end, this application sets a retractable connecting pipe 4e so that the liquefied natural gas between the first connector 4b and the second connector 4c can be collected, thereby reducing the occurrence of safety hazards.

[0066] like Figure 8 As shown, further:

[0067] A recovery pipe 4e1 is also sleeved on the side wall of the connecting pipe 4e, and the recovery pipe 4e1 is connected to an external liquefied natural gas recovery mechanism.

[0068] Based on the above embodiments, the technical problem that the present application intends to solve is how to recycle the liquefied natural gas in the connecting pipe 4e. To this end, the present application sets a recovery pipe 4e1. When the liquefied natural gas between the first connector 4b and the second connector 4c leaks into the connecting pipe 4e, a sealed chamber is formed in the connecting pipe 4e. The liquefied natural gas in the connecting pipe 4e can be recycled and reused through an external recovery mechanism, thereby reducing the waste of liquefied natural gas and reducing the cost.

[0069] like Figure 6 As shown, further:

[0070] A screw rod 4a4 placed in a horizontal state is provided between the two ends of the support seat 4a, the output shaft of the rotary drive motor 4a3 passes through one end of the support seat 4a and is fixedly connected to the screw rod 4a4, the drive block 4a1 is sleeved on the screw rod 4a4 and cooperates with its thread, a slide rail 4a5 is provided at the bottom of the support seat 4a, and a slide bar 4a2 matching the slide rail 4a5 is provided at the bottom of the drive block 4a1.

[0071] Based on the above embodiments, the technical problem that the present application intends to solve is how the drive block 4a1 is to be intercepted with the transmission of the rotary drive motor 4a3. To this end, the present application starts the rotary drive motor 4a3, and the output shaft of the rotary drive motor 4a3 drives the rotation of the screw rod 4a4 fixedly connected thereto, and the rotation of the screw rod 4a4 drives the movement of the drive block 4a1 threadedly matched thereto, so that the drive block 4a1 moves along the direction of the slide rail 4a5, thereby driving the movement of the second connector 4c fixedly connected thereto, so that the first connector 4b and the second connector 4c move away from or close to each other, so that the first connector 4b and the second connector 4c can be automatically disconnected and reconnected, which is convenient for operation and improves the degree of automation without manual judgment.

[0072] like Figure 6 As shown, further:

[0073] A first fixing plate 4a6 and a second fixing plate 4a7 are also provided on the support seat 4a. The first fixing plate 4a6 is vertically located on one end of the support seat 4a close to the first connecting head 4b. The second fixing plate 4a7 is vertically fixedly connected to the driving block 4a1. A plurality of fixing holes 4a8 are provided on the first fixing plate 4a6 and the second fixing plate 4a7. The first connecting head 4b and the second connecting head 4c are respectively installed on the first fixing plate 4a6 and the second fixing plate 4a7 through the fixing holes 4a8.

[0074] Based on the above embodiments, the technical problem that the present application intends to solve is how the first connector 4b and the second connector 4c are connected to the drive block 4a1 and the support seat 4a. To this end, the present application uses the first fixing plate 4a6 and the second fixing plate 4a7 for the installation of the first connector 4b and the second connector 4c, so as to facilitate the rotation drive motor 4a3 to drive the drive block 4a1, thereby driving the first fixing plate 4a6 and the second fixing plate 4a7 to separate or approach each other, so that the first connector 4b and the second connector 4c are separated or approached from each other, and the fixing hole 4a8 is used to prevent the first connector 4b and the second connector 4c from shaking on the first fixing plate 4a6 and the second fixing plate 4a7, so as to facilitate the first connector 4b and the second connector 4c to be sleeved together.

[0075] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. An efficient filling device for an LNG carrier, comprising a filling head (1) and a transport pipe (1c) sleeved on the filling head (1), characterized in that: The filling head (1) is provided with an environment detection mechanism (1d), a locking mechanism (2), a transmission assembly (3) and an automatic separation mechanism (4); the filling head (1) is a cylindrical structure; the environment detection mechanism (1d) is located at the bottom of the filling head (1); the locking mechanism (2) comprises a push ring (2a) and a plurality of support arms (2b); the push ring (2a) is slidably sleeved on the filling head (1); all the support arms (2b) are arranged around the axis of the filling head (1) at equal distances; and all the support arms (2b) are arranged The automatic separation mechanism (4) is located between the filling head (1) and the transport tube (1c), and comprises a support seat (4a), a driving block (4a1), a rotary driving motor (4a3), a first connecting head (4b) and a second connecting head (4c). The support seat (4a) is located beside the bottom of the filling head (1), the rotary driving motor (4a3) is located on one end of the support seat (4a), and the driving block (4a1) is slidably located on the support seat (4a). a), and the driving block (4a1) is drivingly connected to the rotating driving motor (4a3), the first connecting head (4b) is fixedly connected to one end of the supporting seat (4a), and one end of the first connecting head (4b) is connected to the transport pipe (1c), the second connecting head (4c) is fixedly connected to the driving block (4a1), and one end of the second connecting head (4c) is connected to the filling head (1), the first connecting head (4b) and the second connecting head (4c) have the same structure, and the first connecting head (4b) and the second connecting head (4c) have the same structure. The connectors (4c) are sleeved together in a mirror-symmetrical state, and valve cores (4d) are provided in the first connector (4b) and the second connector (4c), and the valve cores (4d) of the first connector (4b) and the second connector (4c) are mutually abutted, and when the first connector (4b) and the second connector (4c) are separated from each other, the valve core (4d) will block the first connector (4b) and the second connector (4c), and the transmission assembly (3) is located between the drive block (4a1) and the push ring (2a).

2. The efficient filling equipment for LNG carrier according to claim 1, characterized in that: The filling head (1) comprises an inner tube (1a) and an outer shell (1b); a filling ring is sleeved on the outer shell (1b); the outer shell (1b) is provided with mounting grooves (1b1) corresponding to the number of support arms (2b); all mounting grooves (1b1) pass through the outer shell (1b); all mounting grooves (1b1) are arranged around the axis of the outer shell (1b) at equal distances; each mounting groove (1b1) is provided with a support shaft (1b2) placed in a horizontal state; all support arms (2b) are rotatably sleeved on the support shafts (1b2) of a plurality of mounting grooves (1b1) in sequence; and a first clamping joint (2b1) is provided on one side of all support arms (2b) close to the axis of the filling head (1).

3. The efficient filling equipment for LNG carrier according to claim 2, characterized in that: The push ring (2a) is a circular ring structure. The inner wall of the push ring (2a) is provided with a clamping block (2a1) that matches the mounting groove (1b1). The inner wall of the clamping block (2a1) is provided with a raised portion (2a2) and a recessed portion (2a3) in sequence from left to right along the axis of the push ring (2a). The top of the support arm (2b) is provided with a recessed section (2b2) ​​that matches the raised portion (2a2) and the recessed portion (2a3) inside the push ring (2a). The raised portion (2a2) and the recessed portion (2a3) of the clamping block (2a1) and the recessed section (2b2) ​​of the support arm (2b) are all processed by arc angle.

4. The efficient filling equipment for LNG carrier according to claim 3, characterized in that: The transmission assembly (3) comprises a first rack (3a1), a support block (3a), a second rack (3b), a gear (3c1) and a rotating seat (3c); the rotating seat (3c) is located at the top of the filling head (1) and at one end away from the mounting groove (1b1); the gear (3c1) is sleeved on the rotating seat (3c); the support block (3a) is fixedly connected to the top of the push ring (2a); the first rack (3a1) is fixedly connected to the support block (3a) in a horizontal state; the first rack (3a1) is located above the gear (3c1) and is meshed with the first rack (3a1) and the gear (3c1); the second rack (3b) is fixedly connected to the top of the driving block (4a1) near the filling head (1) in a horizontal state; the second rack (3b) is located below the gear (3c1) and is meshed with the gear (3c1).

5. The efficient filling equipment for LNG carrier according to claim 1, characterized in that: The first connecting head (4b) and the second connecting head (4c) are both provided with a support frame (4b1) and a funnel-shaped plugging port (4b2) inside, the support frame (4b1) is fixedly connected to the center of the first connecting head (4b) and the second connecting head (4c), and the support frames (4b1) of the first connecting head (4b) and the second connecting head (4c) are both provided with sliding holes, and the valve cores (4d) of the first connecting head (4b) and the second connecting head (4c) can be slidably sleeved. The valve core (4d) is in the sliding hole, and an elastic member (4d1) is arranged on the valve core (4d). The valve core (4d) is also provided with a plugging head (4d5) that matches the plugging port (4b2). The plugging heads (4d5) of the first connecting head (4b) and the second connecting head (4c) are provided with a supporting member (4d2). The plugging heads (4d5) are in a conical structure. The first connecting head (4b) and the second connecting head (4c) are provided with sleeves (4b3) that match each other.

6. The efficient filling equipment for LNG carrier according to claim 5, characterized in that: A clamping groove (4d3) is provided on the top holding piece (4d2) of the first connector (4b), and a second clamping joint (4d4) is provided on the top holding piece (4d2) of the second connector (4c). The top holding pieces (4d2) of the first connector (4b) and the second connector (4c) can be sleeved together.

7. The efficient filling equipment for LNG carrier according to claim 5, characterized in that: A telescopic connecting tube (4e) is sleeved between the first connecting head (4b) and the second connecting head (4c).

8. The efficient filling equipment for LNG carrier according to claim 7, characterized in that: A recovery pipe (4e1) is also sleeved on the side wall of the connecting pipe (4e), and the recovery pipe (4e1) is connected to an external liquefied natural gas recovery mechanism.

9. The efficient filling equipment for LNG carrier according to claim 1, characterized in that: A screw rod (4a4) placed in a horizontal state is arranged between the two ends of the support seat (4a); the output shaft of the rotary drive motor (4a3) passes through one end of the support seat (4a) and is fixedly connected to the screw rod (4a4); the drive block (4a1) is sleeved on the screw rod (4a4) and is threadably matched with the screw rod; a slide rail (4a5) is arranged at the bottom of the support seat (4a); and a slide bar (4a2) matching the slide rail (4a5) is arranged at the bottom of the drive block (4a1).

10. The efficient filling equipment for LNG carrier according to claim 9, characterized in that: A first fixing plate (4a6) and a second fixing plate (4a7) are also provided on the support seat (4a); the first fixing plate (4a6) is vertically located on one end of the support seat (4a) close to the first connector (4b); the second fixing plate (4a7) is vertically fixedly connected to the driving block (4a1); a plurality of fixing holes (4a8) are provided on the first fixing plate (4a6) and the second fixing plate (4a7); the first connector (4b) and the second connector (4c) are respectively mounted on the first fixing plate (4a6) and the second fixing plate (4a7) through the fixing holes (4a8).

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