WO2023134230A1

WO2023134230A1 - Efficient filling device for lng transport ship

Info

Publication number: WO2023134230A1
Application number: PCT/CN2022/122909
Authority: WO
Inventors: 郁惠民; 汪家政; 李川江; 章锐
Original assignee: 浙江海洋大学
Priority date: 2022-04-27
Filing date: 2022-09-29
Publication date: 2023-07-20
Also published as: ZA202307329B; CN116085665A

Abstract

The present invention relates to the technical field of LNG filling devices, in particular to an efficient filling device for an LNG transport ship. The efficient filling device comprises a filling head and a conveying pipe. An environment detection mechanism, a locking mechanism, a transmission assembly and an automatic separation mechanism are arranged on the filling head. The locking mechanism comprises a pushing ring and a plurality of supporting arms. The automatic separation mechanism comprises a supporting seat, a driving block, a rotary driving motor, a first connector and a second connector. In the present application, the filling head is fixed by means of the locking mechanism, the transport condition of liquefied natural gas is detected in real time by means of the environment detection mechanism, the rotary driving motor of the automatic separation mechanism drives the driving block to move, and the driving block drives the second connector, so that the second connector and the first connector are moving away from each other, and that the valve cores cannot abut against each other, the interior of the first connector and the interior of the second connector are blocked by means of the two valve cores respectively, and thus, the effect of protecting the apparatus is achieved, and safety accidents are prevented.

Description

A high-efficiency bunkering equipment for LNG carriers

technical field

The invention relates to the technical field of LNG filling equipment, in particular to a high-efficiency filling equipment for LNG carriers.

Background technique

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 earth. It is colorless, odorless, non-toxic and non-corrosive. Its volume is about the same volume of gaseous natural gas. 1/625, the quality of liquefied natural gas is only about 45% of the same volume of water. In the existing technology, the transportation of LNG is usually through a power ship. When the filling device of the LNG power ship is filling the hull with liquefied natural gas, Because the cabin heights of power ships are different, and the cabin heights of power ships are usually higher than the height of the filling device, so the existing power ship filling devices usually use an inclined pipe to transport the liquefied natural gas in the gas storage tank Filling to the gas storage tank in the cabin, because the inclined pipe is used, the length of the delivery pipe is relatively long, so the surface area of the delivery pipe is large and the time for the liquefied gas to be transported in the delivery pipe is long, resulting in the The temperature in the delivery pipe is greatly affected, resulting in serious gasification of the liquefied gas, increasing the air pressure in the delivery pipe, and easily causing safety accidents.

Chinese patent CN202110018166.6 discloses a filling device for LNG powered ships, including a filling vehicle body, an installation platform is arranged on the top of the filling vehicle body, and an air storage tank and an air pump are arranged on the top of the installation platform. A connecting pipe is fixedly connected between the inner wall of the gas storage tank and the input end of the air pump, the output end of the air pump is fixedly connected with an installation pipe through a joint, a connecting seat is fixedly installed on the top of the side of the filling vehicle body, and the heating box The inner wall far away from the installation pipe is fixedly connected with a delivery pipe, the end of the delivery pipe away from the heating box is provided with a filling piston, and the inside of the control box is also provided with a control mechanism, an environment detection module, an alarm module and a storage module, This patent controls the height of the heating box so that the delivery pipe and the filling piston can be flush with the input port of the cabin, thereby reducing the length of the delivery pipe and avoiding the vaporization of the liquefied gas by heating. The process of filling is monitored in real time to prevent safety accidents, but it cannot protect the device and needs to be controlled manually. Once the operation is wrong, it will lead to difficult results.

Contents of the invention

Based on this, it is necessary to provide a high-efficiency filling equipment for LNG carriers aiming at the existing technical problems.

In order to solve the problems of the prior art, the technical solution adopted in the present invention is:

A high-efficiency filling equipment for an LNG carrier, including a filling head and a transportation pipe sleeved on the filling head. The filling head is equipped with an environmental detection mechanism, a locking mechanism, a transmission assembly and an automatic separation mechanism. The filling head It is a cylindrical structure, and the environmental detection mechanism is located at the bottom of the filling head. The locking mechanism includes a push ring and several support arms. The push ring is slidably sleeved on the filling head, and all the support arms surround the filling head at equal distances. The axis of the axis is set, and all support arms are connected with the driving ring. The automatic separation mechanism is located between the filling head and the transportation pipe. The automatic separation mechanism includes a support seat, a driving block, a rotary drive motor, a first connection head and a second connection. head, the support seat is located on the side of the bottom of the filling head, the rotary drive motor is located on one end of the support seat, the drive block is slidably located on the support seat, and the drive block is connected to the rotary drive motor, and the first connector is fixed It is connected to one end of the support seat, and one end of the first connector is connected to the transport pipe, the second connector is fixedly connected to the drive block, and one end of the second connector is connected to the filling head, the first connection The structure of the first connector and the second connector are the same, the first connector and the second connector are sleeved together in a state of mirror image symmetry, the first connector and the second connector are equipped with valve cores, and the first connector and the second connector The spools of the second connecting head are in contact with each other. When the first connecting head and the second connecting head are separated from each other, the spool will block the first connecting head and the second connecting head. between rings.

Preferably, the filling head includes an inner tube and an outer shell, the filling ring is sleeved on the outer shell, and the outer shell is provided with installation grooves corresponding to the number of support arms one by one, all the installation grooves pass through the outer shell, and all installation The grooves are set around the axis of the outer shell at equal distances, and each mounting groove is provided with a support shaft placed in a horizontal state. A first card joint is provided on one side close to the axis of the filling head.

Preferably, the push ring has a ring-shaped structure, and the inner wall of the push ring is provided with a snap-in block that matches the mounting groove, and the inner wall of the snap-in block is provided with protrusions and depressions in sequence from left to right along the axis of the push ring The top of the support arm is provided with a concave segment that matches the internal convex portion and concave portion of the push ring, and the convex portion and concave portion of the snap-in block and the concave segment of the support arm are all processed by arc angles.

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 on the top of the filling head and away from the end of the installation groove, the gear is sleeved on the rotating seat, and the supporting block is fixed Connected to the top of the push ring, the first rack is fixedly connected to the support block in a horizontal state, the first rack is located above the gear and meshed with the first rack and the gear, and the second rack is fixedly connected to the horizontal state The top of the drive block is close to one side of the filling head, the second rack is located below the gear and the second rack is engaged with the gear.

Preferably, the inside of the first connector and the second connector are provided with a support frame and a funnel-shaped blocking port, the support frame is fixedly connected to the center of the first connector and the second connector, the first connector and the second connector Sliding holes are provided on the support frame of the second connecting head, and the valve cores of the first connecting head and the second connecting head can be slidably set in the sliding holes, and elastic parts are arranged on the valve cores. A plugging head matching with the plugging port is also provided, and the plugging heads of the first connecting head and the second connecting head are provided with top holders, the plugging heads are in a conical structure, the first connecting head and the second connecting head Matching sleeves are arranged on the connecting heads.

Preferably, the top holder of the first connector is provided with a snap-in groove, the top holder of the second connector is provided with a second snap joint, and the top holders of the first connector and the second connector can be inserted into each other. connected together.

Preferably, a telescopic connecting pipe is sleeved between the first connecting head and the second connecting head.

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

Preferably, a screw rod placed in a horizontal state is arranged between the two ends of the support base, the output shaft of the rotary drive motor runs through one end of the support base and is fixedly connected with the screw rod, and the drive block is sleeved on the screw rod and threadedly engaged with it , the bottom of the supporting seat is provided with slide rails, and the bottom of the drive block is provided with slide bars matching with the slide rails.

Preferably, the support seat is also provided with a first fixed plate and a second fixed plate, the first fixed plate is located at one end of the support seat close to the first connector in a vertical state, and the second fixed plate is fixedly connected to the On the driving block, several fixing holes are arranged 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.

The beneficial effects of the present application compared with the prior art are:

1. This application sets the filling head on the liquid injection head of the transport ship, and then fixes the filling head through the locking mechanism, so as to improve the stability of the connection between the filling head and the liquid injection head of the transport ship, and ensure the transmission of liquefied natural gas At the same time, the environmental detection mechanism conducts real-time detection of the transportation status of liquefied natural gas. When it detects that there is leakage of liquefied natural gas or other emergencies, it will automatically trigger the rotary drive motor of the automatic separation mechanism to drive the drive block. Moving, the driving block will drive the second connector, so that the second connector and the first connector are far away from each other, so that the valve core cannot be abutted together, so that the two valve cores are respectively connected to the first connector and the second connector. The inside of the head is blocked, 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 connecting head and the second connecting head 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 to ensure the safety of the transport ship and further avoid the occurrence of safety accidents. Through the settings 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.

2. In this application, the liquid injection head of the transport ship is set on the inner pipe of the filling head, and by pushing the push ring, the push ring is displaced along the axis of the filling head, thereby driving the support arm located on the outer shell, so that all supports The arm rotates around the direction of the support shaft, so that the first clip 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, and preventing safety accidents Occurs, the installation slot provides a space for the support arm to facilitate its installation and maintenance.

3. This application allows the push ring to slide better on the filling head through the setting of the clamping block of the push ring. When the convex part and the concave part of the clamping block contact the support arm, the convex part and the support arm When the concave section of the support arm contacts, it will drive the support arm to tilt around the support shaft, so that the first clamping joint of the support arm is away from the liquid injection head. When the concave part contacts the concave section of the support arm, it will drive the support arm to rotate around the support shaft. Move to the axial direction of the filling head, so that the first clamp joint of the support arm and the liquid injection head are clamped together, so as to fix the liquid injection head, and at the same time, through the setting of the arc angle treatment, the clamping block is supported When sliding on the arm, it can be more smoothly, and the clamping block and the support arm will not be stuck together, which improves the stability of the equipment operation.

4. After the application drives the drive block to move through the rotating drive motor, the drive block will drive the movement of the second rack fixedly connected with it, and the movement of the second rack will drive the rotation of the gear meshed with it, and the rotation of the gear will drive the The rotation of the first rack meshed with it, and the movement of the first rack drives the movement of the push ring. Since the push ring is slidingly connected with the filling head through the snap-in block, the first rack makes the push ring move along the filling line. The axial direction of the head is moved, so that the protrusion of the clamping block of the push ring is in contact with the concave section of the support arm, thereby driving all the support arms to tilt, so that the first clamp joints of all the support arms are in contact with the injection liquid The head is far away, so that the filling head and the liquid injection head are separated, so as to avoid the occurrence of safety accidents.

5. In this application, the sleeves of the first connector and the second connector are sleeved together so that the liquefied natural gas will not leak during transportation. At this time, the valve cores of the first connector and the second connector hold The pieces are abutted against each other, so that the two valve cores move along the axial direction of the sliding holes of the first joint and the second joint respectively, so that the plugging heads of the valve cores of the first joint and the second joint cannot Fitted with the inner wall of the plugging port, the plugging head will compress the elastic member on the support frame, and at this time, the liquefied natural gas in the first connector and the second connector can pass through normally; when the first connector and the second connector When they are far away from each other, since the supporting parts of the spools of the first connector and the second connector cannot be abutted against each other, the elastic member will reset at this time, and the reset of the elastic member will drive the first connector and the second connector. The plugging head of the first connector moves to the inner wall of the plugging port until the plugging heads of the first connector and the second connector are attached to the inner wall of the plugging port. At this time, the LNG cannot pass through normally. , so that the liquefied natural gas in the first joint and the second joint cannot leak out, so as to ensure no further leakage and avoid the occurrence of safety accidents.

6. In this application, through the setting of the clamping slot and the second clamping joint, the top holders of the first connector and the second connector can be clamped together, so that when they are initially abutted together, the connection strength can be improved to avoid The sloshing caused the separation of the first connection head and the second connection head, causing the internal liquefied natural gas to leak.

7. This application enables the collection of liquefied natural gas between the first connection head and the second connection head through the setting of the telescopic connection pipe, thereby reducing the occurrence of potential safety hazards.

8. In this application, through the setting of the recovery pipe, the liquefied natural gas in the connecting pipe can be recycled and reused, so as to reduce the waste of liquefied natural gas and reduce the cost.

Description of drawings

Fig. 1 is the overall three-dimensional structure schematic diagram of the present application;

Fig. 2 is a schematic cross-sectional structure diagram of the first connector and the second connector of the present application when they are far away from each other;

Fig. 3 is a schematic cross-sectional structure diagram of the first connector and the second connector of the present application when they are sleeved together;

Fig. 4 is a three-dimensional structural schematic diagram of the filling head and the push ring of the present application;

Fig. 5 is a three-dimensional structural schematic diagram of the filling head of the present application;

Fig. 6 is a schematic diagram of the three-dimensional structure of the support seat, the first fixed plate and the second fixed plate of the present application;

Fig. 7 is a three-dimensional structural schematic view of the valve cores of the first connector and the second connector of the present application;

Fig. 8 is a schematic diagram of the three-dimensional structure of the connecting pipe and the recovery pipe of the present application;

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

Fig. 10 is an enlarged schematic diagram of place A in Fig. 2 of the present application;

Fig. 11 is an enlarged schematic diagram of place B in Fig. 2 of the present application;

The labels in the figure are:

1-filling head; 1a-inner tube; 1b-outer shell; 1b1-installation slot; 1b2-support shaft; 1c-transport pipe; 1d-environmental testing mechanism;

2-locking mechanism; 2a-pushing ring; 2a1-clamping block; 2a2-protruding part; 2a3-recessed part; 2b-support arm; 2b1-first clamping joint;

3-transmission assembly; 3a-support block; 3a1-first rack; 3b-second rack; 3c-rotary seat; 3c1-gear;

4-automatic separation mechanism; 4a-support base; 4a1-drive block; 4a2-slider; 4a3-rotary drive motor; 4a4-screw; ;4a8-fixing hole; 4b-first connector; 4b1-support frame; 4b2-blocking port; 4b3-sleeve; 4c-second connector; 4d-spool; 4d3-snap slot; 4d4-second snap joint; 4d5-plugging head; 4e-connecting pipe; 4e1-recovery pipe;

5-Injection head.

Detailed ways

In order to further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1-11, this application provides:

A high-efficiency filling equipment for an LNG carrier, comprising a filling head 1 and a transportation 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 The 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 includes a push ring 2a and several support arms 2b, and the push ring 2a is slidably sleeved on the On the filling head 1, all the support arms 2b are set around the axis of the filling head 1 at equal distances, and all the support arms 2b are connected to the push ring 2a in transmission, and the automatic separation mechanism 4 is located between the filling head 1 and the transport pipe 1c The automatic separation mechanism 4 includes a support seat 4a, a drive block 4a1, a rotary drive motor 4a3, a first connector 4b and a second connector 4c, the support seat 4a is located on the side of the bottom of the filling head 1, and the rotary drive motor 4a3 is located On one end of the support base 4a, the drive block 4a1 is slidably located on the support base 4a, and the drive block 4a1 is in transmission connection with the rotary drive motor 4a3, the first connector 4b is fixedly connected to one end of the support base 4a, and the second One end of a connector 4b is connected to the transport pipe 1c, the second connector 4c is fixedly connected to the driving block 4a1, and one end of the second connector 4c is connected to the filling head 1, the first connector 4b and the second The structure of the connecting head 4c is the same, the first connecting head 4b and the second connecting head 4c are sleeved together in a state of mirror image symmetry, the first connecting head 4b and the second connecting head 4c are both provided with a valve core 4d, and the first connecting The spools 4d of the head 4b and the second connection head 4c abut against each other, and when the first connection head 4b and the second connection head 4c are separated from each other, the spool 4d will connect the first connection head 4b and the second connection head 4c Blocking, the transmission assembly 3 is located between the drive block 4a1 and the push ring 2a.

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. will result in irreversible results. The technical problem that this application intends to solve is how the device automatically protects 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 then proceeds along the axis of the filling head 1 by pulling the push ring 2a. Move, thereby controlling the support arm 2b to clamp the liquid injection head 5 on the transport ship, improve the stability of the connection between the filling head 1 and the liquid injection head 5 of the transport ship, and ensure the safety of LNG transmission;

At the same time, the transportation status of LNG is detected in real time through the environmental detection mechanism 1d. When a leakage of LNG or other emergencies are detected, the automatic separation mechanism 4 will be automatically triggered, and the rotary drive motor 4a3 of the automatic separation mechanism 4 will be triggered. It will drive the movement of the driving block 4a1 connected to it, and the movement of the driving block 4a1 will drive the second connecting head 4c connected to it. By moving, the second connecting head 4c and the first connecting head 4b will be separated from each other, so that the second connecting head 4a1 The valve cores 4d in the head 4c and the first connecting head 4b are far away from each other, so that the valve cores 4d cannot be abutted together, so that the two valve cores 4d are respectively sealed to the inside of the first connecting head 4b and the second connecting head 4c. blockage, so that the liquefied natural gas in the transportation pipe 1c cannot continue to be transported, thereby playing a role in protecting the device, which can effectively avoid the occurrence of safety accidents. When the connectors 4c are separated from each other, the locking mechanism 2 will be loosened, so that the filling head 1 and the liquid injection head 5 are separated, ensuring the safety of the transport ship and further avoiding safety accidents. Through the automatic separation mechanism 4 and the environmental detection mechanism 1d And the setting of the locking mechanism 2 makes the filling safer and more stable, so that the transport ship can be filled more efficiently.

As shown in Figure 2, Figure 4 and Figure 5, further:

The filling head 1 includes an inner tube 1a and an outer shell 1b. 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, and all the mounting grooves 1b1 pass through Outer shell 1b, all mounting grooves 1b1 are set 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, and all support arms 2b are rotatable and sequentially sleeved on multiple On the support shaft 1b2 of the first mounting slot 1b1, a first snap joint 2b1 is provided on the side of all the support arms 2b close to the axis of the filling head 1 .

Based on the above embodiments, the technical problem to be solved in this application is how to install the support arm 2 b on the filling head 1 . For this reason, the application sets the liquid injection head 5 of the transport ship on the inner pipe 1a of the filling head 1, and by pushing the push ring 2a, the push ring 2a is displaced along the axis of the filling head 1, thereby driving the The support arm 2b on 1b makes all the support arms 2b rotate around the direction of the support shaft 1b2, so that the first snap joint 2b1 on the support arm 2b is fixed to the liquid injection head 5 of the transport ship, thereby raising the liquid injection head 5 The stability of the connection with the filling head 1 prevents safety accidents, and the installation groove 1b1 provides a space for the support arm 2b to facilitate its installation and maintenance.

As shown in Figure 2, Figure 4 and Figure 5, further:

The push ring 2a is a ring-shaped structure, the inner wall of the push ring 2a is provided with a snap-in block 2a1 that matches the installation groove 1b1, and the inner wall of the snap-in block 2a1 is provided with protrusions along the axis of the push ring 2a from left to right part 2a2 and recessed part 2a3, the top of the support arm 2b is provided with a recessed section 2b2 that matches the internal raised part 2a2 and recessed part 2a3 of the push ring 2a, the raised part 2a2 and recessed part 2a3 of the clamping block 2a1 and the supporting arm The recessed section 2b2 of 2b is processed by arc corners.

Based on the above embodiments, the technical problem that the present application intends to solve is how to drive the support arm 2b to the push ring 2a. For this reason, the present application makes the push ring 2a slide better on the filling head 1 through the setting of the clamping block 2a1 of the push ring 2a. When the arm 2b is in contact, when the protrusion 2a2 contacts the concave section 2b2 of the support arm 2b, it will drive the support arm 2b to tilt around the support shaft 1b2, so that the first snap joint 2b1 of the support arm 2b is far away from the liquid injection head 5, and when the depression When the part 2a3 is in contact with the concave section 2b2 of the support arm 2b, it will drive the support arm 2b to move around the support shaft 1b2 to the axial direction of the filling head 1, so that the first clamping joint 2b1 of the support arm 2b is clamped with the liquid injection head 5 Together, the liquid injection head 5 is fixed, and at the same time, through the setting of the arc angle treatment, when the clamping block 2a1 slides on the support arm 2b, it can be more smoothly, and the clamping block 2a1 will not be connected to the support arm 2b. Stuck together to improve the stability of equipment operation.

As shown in Figure 4-6 and Figure 11, further:

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 on the top of the filling head 1 and away from the end of the installation groove 1b1. The gear 3c1 is sleeved on the On the rotating seat 3c, the support block 3a is fixedly connected to the top of the push ring 2a, and 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 connected to the first rack 3a1 Mesh connection with the gear 3c1, the second rack 3b is fixedly connected to the top of the drive block 4a1 near the side of the filling head 1 in a horizontal state, the second rack 3b is located below the gear 3c1 and the second rack 3b is connected to the gear 3c1 Mesh connection.

Based on the above embodiments, the technical problem to be solved in this application is how to operate the transmission assembly 3 . For this reason, after the application drives the drive block 4a1 to move through the rotating drive motor 4a3, the drive block 4a1 will drive the movement of the second rack 3b fixedly connected with it, and the movement of the second rack 3b will drive the gear 3c1 meshed with it. Rotation, 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. 1 sliding connection, the first rack 3a1 makes the push ring 2a move along the axial direction of the filling head 1, so that the protrusion 2a2 of the locking block 2a1 of the push ring 2a contacts with the concave section 2b2 of the support arm 2b, thereby All the support arms 2b are tilted up, so that the first snap joints 2b1 of all the support arms 2b are away from the liquid injection head 5, so that the filling head 1 and the liquid injection head 5 are separated, thereby avoiding the occurrence of safety accidents.

As shown in Figure 3, Figure 9 and Figure 10, further:

The inside of the first connector 4b and the second connector 4c are provided with a support frame 4b1 and a funnel-shaped plugging port 4b2, the support frame 4b1 is fixedly connected to the center of the first connector 4b and the second connector 4c, the second A sliding hole is provided on the supporting frame 4b1 of the first connecting head 4b and the second connecting head 4c, and the spool 4d of the first connecting head 4b and the second connecting head 4c can be slidably set in the sliding hole, and the spool 4d are provided with elastic parts 4d1, valve core 4d is also provided with a plugging head 4d5 that matches with the plugging port 4b2, and the plugging heads 4d5 of the first connector 4b and the second connector 4c are provided with a top The holder 4d2 and the plugging head 4d5 are in a conical structure, and the first connecting head 4b and the second connecting head 4c are both provided with matching sleeves 4b3.

Based on the above-mentioned embodiments, the technical problem to be solved in this application is how to automatically block the valve core 4d for the first connecting head 4b and the second connecting head 4c. For this reason, the present application sets the sleeves 4b3 of the first connector 4b and the second connector 4c together so that the liquefied natural gas will not leak during transportation. At this time, the first connector 4b and the second connector 4c The supporting parts 4d2 of the spool 4d abut against each other, so that the two spools 4d move along the axial directions of the sliding holes of the first connecting head 4b and the second connecting head 4c respectively, so that the first connecting head 4b and the second connecting head 4c The plugging head 4d5 of the spool 4d of the second connector 4c cannot fit the inner wall of the plugging port 4b2, and the plugging head 4d5 will compress the elastic member 4d1 on the support frame 4b1. At this time, the first connector 4b and the second The liquefied natural gas at the connector 4c can pass through normally;

When the first connecting head 4b and the second connecting head 4c are far away from each other, since the supporting parts 4d2 of the valve core 4d of the first connecting head 4b and the second connecting head 4c cannot abut against each other, the elastic member 4d1 will Reset, the reset of the elastic member 4d1 will drive the sealing head 4d5 of the first connecting head 4b and the second connecting head 4c to move to the inner wall of the blocking port 4b2 until the sealing head of the first connecting head 4b and the second connecting head 4c 4d5 is attached to the inner wall of the plugging port 4b2, and at this time, the liquefied natural gas cannot pass through normally. Through the setting of the plugging head 4d5, the liquefied natural gas in the first connector 4b and the second connector 4c cannot leak out, ensuring There will be no further leakage, avoiding the occurrence of safety accidents.

As shown in Figure 3, Figure 7 and Figure 10, further:

The top holder 4d2 of the first connector 4b is provided with a snap groove 4d3, the top holder 4d2 of the second connector 4c is provided with a second clip joint 4d4, the top of the first connector 4b and the second connector 4c The holders 4d2 can be nested together.

Based on the above-mentioned embodiments, the technical problem to be solved in the present application is how to connect the top holder 4d2 of the first connector 4b and the second connector 4c. For this reason, the present application uses the setting of the clamping groove 4d3 and the second clamping joint 4d4, so that the top holders 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, and the separation of the first connection head 4b and the second connection head 4c caused by shaking can be avoided, resulting in leakage of the internal liquefied natural gas.

As shown in Figure 2, Figure 3 and Figure 8, further:

A telescopic connecting pipe 4e is sleeved between the first connecting head 4b and the second connecting head 4c.

Based on the above embodiment, when the first connection head 4b and the second connection head 4c are separated, there will be liquefied natural gas remaining between the first connection head 4b and the second connection head 4c, and the leakage of this part of the liquefied natural gas may cause a safety hazard. The technical problem that this application intends to solve is how to prevent the leakage of LNG between the first connection head 4b and the second connection head 4c. For this reason, the present application makes it possible to collect the liquefied natural gas between the first connection head 4b and the second connection head 4c through the arrangement of the telescopic connection pipe 4e, thereby reducing the occurrence of potential safety hazards.

As shown in Figure 8, further:

A recovery pipe 4e1 is also sheathed on the side wall of the connection pipe 4e, and the recovery pipe 4e1 is connected to an external LNG recovery mechanism.

Based on the above embodiments, the technical problem to be solved in this application is how to recycle the liquefied natural gas in the connecting pipe 4e. For this reason, through the arrangement of the recovery pipe 4e1 in this application, when the liquefied natural gas between the first connection head 4b and the second connection head 4c leaks into the connection pipe 4e, a closed chamber is formed in the connection pipe 4e, and the external The recycling mechanism can recycle and reuse the liquefied natural gas in the connecting pipe 4e, reducing waste of liquefied natural gas and reducing costs.

As shown in Figure 6, further:

A screw 4a4 placed horizontally is arranged between the two ends of the support base 4a, the output shaft of the rotary drive motor 4a3 runs through one end of the support base 4a and is fixedly connected to the screw 4a4, and the drive block 4a1 is sleeved on the screw 4a4 And it is screwed together, the bottom of the support base 4a is provided with a slide rail 4a5, and the bottom of the driving block 4a1 is provided with a slide bar 4a2 matching with the slide rail 4a5.

Based on the above embodiments, the technical problem to be solved in the present application is how to transmit and intercept the drive block 4a1 with the rotary drive motor 4a3. For this reason, the application is by starting the rotary drive motor 4a3, the output shaft of the rotary drive motor 4a3 has driven the rotation of the screw mandrel 4a4 fixedly connected with it, and the rotation of the screw mandrel 4a4 has driven the movement of the drive block 4a1 that is screwed with it, so that the drive The block 4a1 moves along the direction of the slide rail 4a5, thereby driving the movement of the second connecting head 4c fixedly connected with it, so that the first connecting head 4b and the second connecting head 4c are moved away from or close to each other, so that the automatic adjustment of the second connecting head 4c can be realized. The first connector 4b and the second connector 4c are disconnected and reconnected, which is convenient for operation and improves the degree of automation without manual judgment.

As shown in Figure 6, further:

The support seat 4a is also provided with a first fixed plate 4a6 and a second fixed plate 4a7, the first fixed plate 4a6 is vertically located on the end of the support seat 4a close to the first connector 4b, and the second fixed plate 4a7 is vertical The state is fixedly connected to the driving block 4a1, the first fixing plate 4a6 and the second fixing plate 4a7 are provided with several fixing holes 4a8, and the first connecting head 4b and the second connecting head 4c are respectively installed on the first connecting head 4a8 through the fixing holes 4a8. on the fixed plate 4a6 and the second fixed plate 4a7.

Based on the above embodiments, the technical problem to be solved in this application is how to connect the first connector 4b and the second connector 4c with the driving block 4a1 and the support seat 4a. For this reason, the application uses the first fixed plate 4a6 and the second fixed plate 4a7 for the installation of the first connector 4b and the second connector 4c, so that the rotating drive motor 4a3 drives the drive block 4a1, thereby driving the first fixed plate 4a6 Separate or close to the second fixing plate 4a7, so that the first connector 4b and the second connector 4c are separated or close to each other, and the fixing hole 4a8 is used to prevent the first connector 4b and the second connector 4c from being fixed in the first Shaking occurs on the plate 4a6 and the second fixing plate 4a7, so that the first connecting head 4b and the second connecting head 4c are sleeved together.

The above examples only represent one or several implementations of the present invention, and the descriptions thereof are more specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be noted that, for those skilled 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 patent for the present invention should be based on the appended claims.

Claims

A high-efficiency filling equipment for an LNG carrier, comprising a filling head (1) and a transport pipe (1c) sheathed on the filling head (1), characterized in that the filling head (1) is provided with an environmental detection Mechanism (1d), locking mechanism (2), transmission assembly (3) and automatic separation mechanism (4), the filling head (1) is a cylindrical structure, and the environment detection mechanism (1d) is located at the center of the filling head (1) At the bottom, the locking mechanism (2) includes a push ring (2a) and several support arms (2b), the push ring (2a) is slidably sleeved on the filling head (1), and all support arms (2b) are equidistant It is arranged around the axis of the filling head (1), and all the support arms (2b) are connected to the push ring (2a) in transmission, and the automatic separation mechanism (4) is located between the filling head (1) and the transport pipe (1c) , the automatic separation mechanism (4) includes a support seat (4a), a drive block (4a1), a rotary drive motor (4a3), a first connector (4b) and a second connector (4c), and the support seat (4a) is located at the On the side of the bottom of the injection head (1), the rotary drive motor (4a3) is located on one end of the support base (4a), the drive block (4a1) is slidably located on the support base (4a), and the drive block (4a1) It is connected to the rotating drive motor (4a3) in transmission, the first connector (4b) is fixedly connected to one end of the support seat (4a), and one end of the first connector (4b) is connected to the transport pipe (1c), the second The two connectors (4c) are fixedly connected to the drive block (4a1), and one end of the second connector (4c) is connected to the filling head (1), the first connector (4b) and the second connector (4c) ) have the same structure, the first connector (4b) and the second connector (4c) are sleeved together in a state of mirror image symmetry, and both the first connector (4b) and the second connector (4c) are provided with spools (4d), and the spools (4d) of the first connector (4b) and the second connector (4c) abut against each other, when the first connector (4b) and the second connector (4c) are separated from each other , the spool (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).
A kind of high-efficiency filling equipment for LNG carriers according to claim 1, characterized in that the filling head (1) includes an inner pipe (1a) and an outer shell (1b), and the filling ring is sleeved on the outer shell (1b) ), the outer casing (1b) is provided with installation grooves (1b1) corresponding to the number of support arms (2b), all the installation grooves (1b1) run through the outer casing (1b), and all installation grooves (1b1) are equal The distance is set around the axis of the outer casing (1b), and each mounting groove (1b1) is provided with a support shaft (1b2) placed in a horizontal state, and all support arms (2b) are rotatable and sequentially sleeved on multiple On the support shaft (1b2) of the installation slot (1b1), all support arms (2b) are provided with a first snap joint (2b1) on the side close to the axis of the filling head (1).
A kind of high-efficiency filling equipment for LNG carrier according to claim 2, characterized in that, the push ring (2a) is a ring-shaped structure, and the inner wall of the push ring (2a) is provided with a matching mounting groove (1b1). The snap-in block (2a1), the inner wall of the snap-in block (2a1) is provided with protrusions (2a2) and recesses (2a3) in turn along the axis of the push ring (2a) from left to right, and the support arm (2b) The top is provided with a recessed section (2b2) matching the inner protrusion (2a2) and recess (2a3) of the push ring (2a), and the protrusion (2a2) and recess (2a3) of the locking block (2a1) And the recessed section (2b2) of the support arm (2b) is processed through arc corners.
A kind of high-efficiency 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 the rotating seat (3c), the rotating seat (3c) is located on the top of the filling head (1) and away from the end of the installation groove (1b1), the gear (3c1) is sleeved on the rotating seat (3c), and the supporting 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 The first rack (3a1) is meshed with the gear (3c1), the second rack (3b) is fixedly connected to the top of the drive block (4a1) on the side close to the filling head (1) in a horizontal state, the second rack (3b) is located below the gear (3c1) and the second rack (3b) is engaged with the gear (3c1).
A kind of high-efficiency filling equipment for LNG carrier according to claim 1, characterized in that, the inside of the first connecting head (4b) and the second connecting head (4c) are both provided with a support frame (4b1) and are funnel-shaped The plugging port (4b2), the support frame (4b1) is fixedly connected to the center of the first connector (4b) and the second connector (4c), the first connector (4b) and the second connector (4c) Sliding holes are provided on the support frame (4b1), the spools (4d) of the first connector (4b) and the second connector (4c) can be slidably set in the sliding holes, and the spools (4d) Elastic parts (4d1) are arranged on the valve core (4d), and a plugging head (4d5) matching with the plugging port (4b2) is also arranged on the valve core (4d), the first connecting head (4b) and the second connecting head (4c ) are provided with top holders (4d2) on the plugging heads (4d5), the plugging heads (4d5) have a conical structure, the first connector (4b) and the second connector (4c) are provided with mutual Matching bushing (4b3).
A kind of high-efficiency filling equipment for LNG carrier according to claim 5, characterized in that, the jacking part (4d2) of the first connecting head (4b) is provided with a clamping slot (4d3), and the second connecting head ( The top holder (4d2) of 4c) is provided with a second clip connector (4d4), and the top holders (4d2) of the first connector (4b) and the second connector (4c) can be nested together.
The high-efficiency bunkering equipment for LNG carriers according to claim 5, characterized in that a telescopic connecting pipe (4e) is sleeved between the first connecting head (4b) and the second connecting head (4c).
A kind of high-efficiency filling equipment for LNG carrier according to claim 7, characterized in that, the side wall of the connecting pipe (4e) is also provided with a recovery pipe (4e1), and the recovery pipe (4e1) is connected with the external liquefied natural gas connected to recycling facilities.
A kind of high-efficiency 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), and the rotating drive motor (4a3) The output shaft runs through one end of the support seat (4a) and is fixedly connected with the screw rod (4a4). rail (4a5), the bottom of the drive block (4a1) is provided with a slide bar (4a2) that matches the slide rail (4a5).
A kind of high-efficiency filling equipment for LNG carrier according to claim 9, characterized in that, the support seat (4a) is also provided with a first fixed plate (4a6) and a second fixed plate (4a7), the first fixed plate (4a6) is vertically located on the support seat (4a) near the end of the first connector (4b), the second fixed plate (4a7) is fixedly connected to the drive block (4a1) in a vertical state, and the first fixed plate (4a6) and the second fixing plate (4a7) are provided with several fixing holes (4a8), the first connecting head (4b) and the second connecting head (4c) are respectively installed on the first fixing hole (4a8) plate (4a6) and the second fixed plate (4a7).