Liquid discharging device of liquid storage tank and LNG tank car

Abstract

The utility model provides a liquid discharging device of a liquid storage tank and an LNG (Liquefied Natural Gas) tank car. The liquid discharging device of the liquid storage tank comprises a mounting seat and a supercharger, the mounting seat is fixed on the liquid storage tank, a pressurizing pipeline is arranged on the pressurizer, and the pressurizing pipeline is detachably connected with a connecting pipeline of the liquid storage tank, so that the pressurizer can pressurize the liquid storage tank. Meanwhile, a sliding rail is arranged on the mounting base, and the supercharger is connected to the sliding rail and can move relative to the mounting base along the sliding rail, so that the supercharger is switched between the connecting position and the cleaning position. Specifically, at the connecting position, the pressurizing pipeline can be communicated with or disconnected from the connecting pipeline, so that the pressurizer can be communicated with the liquid storage tank, or the pressurizer can move relative to the mounting base. And in the cleaning position, the supercharger can be moved to the position where cleaning operation is convenient, and cleaning personnel can clean the supercharger conveniently.

Description

Technical Field

[0001] This utility model relates to the field of LNG transportation technology, and in particular to a liquid storage tank unloading device and an LNG tank truck. Background Technology

[0002] When businesses use liquefied natural gas (LNG), it is typically transported to an LNG terminal via LNG storage tanks, then unloaded and stored in storage tanks for the business's use. During unloading, the LNG storage tanks and storage tanks are connected via pipelines and flanges, and then unloading is performed using an unloading booster.

[0003] In existing unloading boosters, it is fixed to the bottom of the storage tank and connected to the output end of the storage tank through an external pipe for unloading.

[0004] However, because the unloading booster is located at the bottom of the storage tank and is connected to the connecting pipe, the main body of the booster is not easy to clean, thus reducing the efficiency of the unloading booster. Utility Model Content

[0005] The purpose of this invention is to provide a liquid unloading device for a storage tank, which facilitates the cleaning of the unloading booster.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] According to one aspect of this utility model, a liquid unloading device for a storage tank is provided, connected to a storage tank, the storage tank being provided with a connecting pipeline. The liquid unloading device includes: a mounting base connected to the storage tank; a pressure booster mounted on the mounting base; a pressure boosting pipeline provided on the pressure booster, the pressure boosting pipeline being able to communicate with the connecting pipeline; and a connecting mechanism connected between the pressure boosting pipeline and the connecting pipeline, such that the pressure boosting pipeline is detachably connected to the connecting pipeline, and axially restricting the movement of the pressure boosting pipeline relative to the connecting pipeline; wherein... The mounting base is provided with a slide rail extending toward the connecting pipe. A connection position is located on one side of the slide rail near the connecting pipe, and a cleaning position is located on the other side of the slide rail. The booster can move relative to the mounting base along the slide rail to switch between the connection position and the cleaning position. In the connection position, the booster pipe remains connected to the connecting pipe, and the connection mechanism is closed. When the connection mechanism is open, the booster can move along the slide rail to the cleaning position. In the cleaning position, the booster can perform cleaning.

[0008] In one embodiment of this application, the connecting mechanism includes a locking tongue and a hook assembly; the locking tongue is connected to the connecting pipeline, and the hook assembly is connected to the pressurizing pipeline; the hook assembly can extend out of the pressurizing pipeline and engage the locking tongue to connect the pressurizing pipeline to the connecting pipeline.

[0009] In one embodiment of this application, the hook and ring assembly includes a hook and ring seat, a locking ring, and a handle; the hook and ring seat is fixed to the pressurization pipeline, the handle is connected to the hook and ring seat and can rotate relative to the hook and ring seat, the locking ring is connected to the handle and can rotate relative to the handle, and under the action of the handle, the locking ring can engage the locking tongue.

[0010] In one embodiment of this application, the booster is provided with a connecting rod at each of its opposite ends, and there are two slide rails, which are spaced apart. The connecting rods at both ends of the booster are slidably mounted on the two slide rails.

[0011] In one embodiment of this application, the slide rail is a movable groove formed on the side plate of the mounting base. A limiting groove is formed on the inner side wall of the movable groove. The end of the connecting rod away from the supercharger is provided with a connected movable part and a limiting part. The limiting part is located at the end of the movable part away from the supercharger, and the limiting part protrudes from the periphery of the movable part in a direction away from the movable part. The movable part passes through the movable groove so that the movable part can move along the movable groove. The limiting part is accommodated in the limiting groove, and the limiting part can abut against the inner wall of the limiting groove to limit the movable part within the movable groove.

[0012] In one embodiment of this application, the movable part includes a movable segment and a connecting segment; one end of the movable segment is connected to the booster, and the other end is connected to the connecting segment, and the end of the connecting segment opposite to the movable segment is connected to the limiting part; the movable segment and the connecting segment are arranged at an angle; after the movable part passes through the movable groove, the length direction of the movable segment extends along the length direction of the movable groove.

[0013] In one embodiment of this application, the mounting base has a through clearance groove; one end of the clearance groove is open in the length direction; the clearance groove is used to pass through the pressurization pipeline, so that the pressurization pipeline can extend to the outside of the mounting base.

[0014] In one embodiment of this application, the mounting base includes a connecting plate and two side plates; the two side plates are spaced apart to form an accommodating space for accommodating the turbocharger between the two side plates; the connecting plate is connected between the two side plates.

[0015] In one embodiment of this application, the side plate is provided with folded plates on both sides in the width direction; the folded plates bend from the side of the side plate and extend toward the interior of the accommodating space.

[0016] This application also provides an LNG tanker truck, which includes a chassis, a storage tank, and any of the storage tank unloading devices; the storage tank is mounted on the chassis, the storage tank unloading device is disposed on the chassis and located at the bottom of the storage tank, the connection position is located below the chassis, and the cleaning position is away from the horizontal side of the chassis.

[0017] As can be seen from the above technical solution, this utility model has at least the following advantages and positive effects:

[0018] In this invention, the liquid unloading device for the storage tank includes a mounting base and a pressure booster. The mounting base is fixed to the storage tank, and the pressure booster is equipped with a pressure boosting pipeline, which is detachably connected to the storage tank's connecting pipeline, allowing the pressure booster to pressurize the storage tank. Simultaneously, the mounting base is equipped with a slide rail, and the pressure booster is connected to the slide rail and can move relative to the mounting base along the slide rail, allowing the pressure booster to switch between a connection position and a cleaning position. Specifically, in the connection position, the pressure boosting pipeline can be connected to or disconnected from the connecting pipeline, allowing the pressure booster to connect to the storage tank or move relative to the mounting base. In the cleaning position, the pressure booster can be moved to a position convenient for cleaning operations, facilitating cleaning by cleaning personnel. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the liquid unloading device for the storage tank according to an embodiment of the present invention.

[0020] Figure 2 yes Figure 1 An exploded view of the liquid unloading device for the storage tank.

[0021] Figure 3 yes Figure 1 A schematic diagram of the connection mechanism of the liquid unloading device for the storage tank.

[0022] The annotations in the attached figures are explained as follows:

[0023] 1-Connecting pipe; 10-Mounting base; 11-Slide rail; 12-Moving groove; 13-Limiting groove; 14-Allowing groove; 15-Connecting plate; 16-Side plate; 17-Accommodation space; 18-Folding plate; 20-Pressure booster; 21-Pressure boosting pipe; 30-Connecting mechanism; 31-Lock tongue; 32-Hook and ring assembly; 33-Hook and ring seat; 34-Lock ring; 35-Handle; 40-Connecting rod; 41-Moving part; 42-Limiting part; 43-Moving section; 44-Connecting section. Detailed Implementation

[0024] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0025] In the description of this utility model, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back, etc.) are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications will also change accordingly.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In existing unloading boosters, the device is fixed to the bottom of the storage tank and connected to the tank's output end via an external pipe for unloading. However, because the booster is located at the bottom of the tank and is connected to the pipeline, the booster body is difficult to clean, thus reducing its efficiency. Therefore, a storage tank unloading device is proposed to solve the above problems.

[0028] The solution is further illustrated by the following examples:

[0029] Figure 1 This is a schematic diagram of the liquid unloading device for the storage tank according to an embodiment of the present invention. Figure 2 yes Figure 1 An exploded view of the liquid unloading device for the storage tank. Figure 3 yes Figure 1 A schematic diagram of the connection mechanism of the liquid unloading device for the storage tank.

[0030] Please see Figure 1 and Figure 2 In this embodiment, the liquid unloading device is connected to the liquid storage tank and located at the bottom of the liquid storage tank. When the liquid storage tank is depressurized, the liquid unloading device can pressurize the liquid storage tank, thereby improving the unloading speed and unloading efficiency.

[0031] It should be noted that the liquid storage tank can be installed on a ship or on a tank truck. Furthermore, the liquid storage tank is used to store liquid gaseous media.

[0032] Specifically, the liquid unloading device for the storage tank may include a mounting base 10 and a booster 20.

[0033] The mounting base 10 is connected to the liquid storage tank, and the booster 20 is mounted on the mounting base 10. The booster 20 is provided with a booster pipe 21, which is detachably connected to the connecting pipe 1 of the liquid storage tank, so that the booster 20 can pressurize the liquid storage tank.

[0034] In this embodiment, a slide rail 11 is provided on the mounting base 10, and the slide rail 11 extends toward the connecting pipe 1. A connection position is provided on the side of the slide rail 11 near the connecting pipe 1, and a cleaning position is provided on the other side of the slide rail 11.

[0035] Meanwhile, the booster 20 can move or slide relative to the mounting base 10 along the slide rail 11, so that the booster 20 can switch between the connection position and the cleaning position.

[0036] It should be noted that the connection point is located at the bottom of the storage tank to facilitate the connection between the booster line 21 and the connecting line 1. The cleaning point is located on the side of the storage tank, allowing operators to clean or repair the booster 20 from the side of the storage tank.

[0037] Specifically, in the connected position, the pressurizing line 21 can be connected to or disconnected from the connecting line 1. When the pressurizing line 21 is connected to the connecting line 1, the pressurizer 20 can pressurize the storage tank through the pressurizing line 21 and the connecting line 1, thereby improving the unloading speed and efficiency of the storage tank. When the pressurizing line 21 is disconnected from the connecting line 1, the pressurizer 20 and the pressurizing line 21 can move relative to the mounting base 10, allowing the pressurizer 20 to move along the slide rail 11 relative to the mounting base 10, and to move or switch between the connected position and the cleaning position.

[0038] When cleaning, the booster 20 can be located on the side of the liquid storage tank, which makes it convenient for cleaning personnel to clean the booster 20 and avoids the inconvenience caused by the booster 20 being located at the bottom of the liquid storage tank.

[0039] See Figure 1 and Figure 2 The mounting base 10 may include a connecting plate 15 and two side plates 16. The two side plates 16 are spaced apart, thereby forming an accommodating space 17 between the two side plates 16. The accommodating space 17 can be used to accommodate the turbocharger 20, so that the mounting base 10 can provide a certain degree of protection for the turbocharger 20 and prevent the turbocharger 20 from being impacted by external forces.

[0040] Meanwhile, the connecting plate 15 connects between the two side plates 16 to ensure the stability between the two side plates 16 and enhance the structural strength of the mounting base 10. Specifically, the connecting plate 15 connects to the top of the two side plates 16 and is located at the ends of the two side plates 16 in the length direction, thereby stably connecting the two side plates 16.

[0041] In this embodiment, the slide rail 11 is disposed on the side plate 16, the length direction of the slide rail 11 extends along the length direction of the side plate 16, and the length direction of the slide rail 11 extends in the horizontal direction.

[0042] See Figure 1 and Figure 2 The mounting base 10 may have a through clearance groove 14, which is located on the side plate 16 and extends along the length of the side plate 16. The clearance groove 14 is used to pass through the pressurization pipe 21, so that the pressurization pipe 21 can extend to the outside of the mounting base 10.

[0043] Since the booster 20 is located within the accommodating space 17 between the two side plates 16, and the booster pipe 21 is connected to the end of the booster 20, the clearance groove 14 allows the booster pipe 21 to extend at least partially out of the accommodating space 17, enabling the booster pipe 21 to communicate with the connecting pipe 1. Simultaneously, when the booster 20 moves or slides relative to the mounting base 10, the booster pipe 21 can move or slide along the clearance groove 14, preventing the side plates 16 from interfering with the booster pipe 21.

[0044] It should be noted that the clearance groove 14 is open at one end along its length, which facilitates the installation of the turbocharger 20 and the booster pipe 21 into the accommodating space 17 between the two side plates 16, thereby improving the installation efficiency of the turbocharger 20.

[0045] In this embodiment, the side plate 16 is provided with folded plates 18 on both sides in the width direction, that is, the side plate 16 is provided with folded plates 18 at the top and bottom in the vertical direction. Specifically, the folded plates 18 bend from the side of the side plate 16 and extend toward the interior of the accommodating space 17, so that the folded plates 18 can enhance the structural strength of the side plate 16, thereby enhancing the overall structural strength of the mounting base 10.

[0046] It should be noted that the mounting base 10 is connected to the bottom of the liquid storage tank via a folding plate 18. Specifically, the folding plate 18 at the top of the side plate 16 has multiple bolt holes for bolts to be inserted, so that the mounting base 10 is connected to the bottom of the liquid storage tank by bolts.

[0047] Of course, in some other embodiments, the mounting base 10 can also be connected to the liquid storage tank by welding.

[0048] See Figure 1 , Figure 2 and Figure 3 The liquid unloading device for the storage tank may also include a connecting mechanism 30.

[0049] The connecting mechanism 30 is connected between the pressurizing pipeline 21 and the connecting pipeline 1, so that the pressurizing pipeline 21 can be detachably connected to the connecting pipeline 1, and restricts the movement of the pressurizing pipeline 21 relative to the connecting pipeline 1 in the axial direction, thereby facilitating the connection between the pressurizing pipeline 21 and the connecting pipeline 1, or facilitating the detachment of the pressurizing pipeline 21 from the connecting pipeline 1.

[0050] Specifically, the connecting mechanism 30 is connected to the outer periphery of the connection end of the pressurizing pipeline 21 and the connecting pipeline 1, thereby connecting the pressurizing pipeline 21 to the connecting pipeline 1, ensuring that the pressurizing pipeline 21 can remain connected to the connecting pipeline 1, and preventing the pressurizing pipeline 21 from becoming detached or separated from the connecting pipeline 1 during the unloading process.

[0051] In this embodiment, when in the connected position, the pressurizing pipeline 21 remains connected to the connecting pipeline 1, and the connecting mechanism 30 is closed. When the connecting mechanism 30 is open, the pressurizer 20 can move along the slide rail 11 to the cleaning position. Specifically, the connecting mechanism 30 can be closed or opened, and after the connecting mechanism 30 is closed or opened, the pressurizing pipeline 21 can be connected to or disconnected from the connecting pipeline 1. That is, in the connected position and when the connecting mechanism 30 is closed, the pressurizing pipeline 21 can be connected to the connecting pipeline 1, and in the connected position and when the connecting mechanism 30 is open, the pressurizing pipeline 21 can be disconnected from the connecting pipeline 1, and the pressurizer 20 can move along the slide rail 11 to the cleaning position.

[0052] It should be noted that the pressurization pipeline 21 and the connecting pipeline 1 are also connected by a connector to ensure a tight connection between the pressurization pipeline 21 and the connecting pipeline 1, and to prevent LNG and other gases from leaking from the connection between the pressurization pipeline 21 and the connecting pipeline 1.

[0053] See Figure 3 The connecting mechanism 30 may include a locking tongue 31 and a hook and loop assembly 32.

[0054] The locking tongue 31 is connected to the connecting pipe 1. Specifically, the locking tongue 31 is connected to the connecting pipe 1 by bolts. In some other embodiments, the locking tongue 31 can be connected to the outer periphery of the connecting pipe 1 by components such as pipe clamps.

[0055] Meanwhile, the hook and loop assembly 32 is connected to the pressurization line 21. The hook and loop assembly 32 can extend out of the pressurization line 21 and engage with the locking tongue 31, thereby connecting the pressurization line 21 to the connecting line 1. Of course, the hook and loop assembly 32 can also be retracted to the pressurization line 21, allowing the hook and loop assembly 32 to disengage from the locking tongue 31, thus facilitating the separation or disconnection of the pressurization line 21 from the connecting line 1.

[0056] In other embodiments, the connecting mechanism 30 may be equipped with a snap-fit ​​quick connector or similar structure, and the snap-fit ​​quick connector is connected to the pressurizing pipeline 21 or the connecting pipeline 1, so that the pressurizing pipeline 21 can be quickly connected to the connecting pipeline 1, or the pressurizing pipeline 21 can be quickly separated from the connecting pipeline 1. Alternatively, the connecting mechanism 30 may be equipped with a flange or connecting claw, and the flange and connecting claw are respectively connected to the pressurizing pipeline 21 and the connecting pipeline 1, so that the pressurizing pipeline 21 can be quickly connected to the connecting pipeline 1, or the pressurizing pipeline 21 can be quickly separated from the connecting pipeline 1.

[0057] See Figure 3 The hook and ring assembly 32 may include a hook and ring seat 33, a locking ring 34, and a handle 35. The hook and ring seat 33 is fixed to the pressurization line 21, the handle 35 is connected to the hook and ring seat 33 and can rotate relative to the hook and ring seat 33, and the locking ring 34 is connected to the handle 35 and can rotate relative to the handle 35. Driven by the handle 35, the locking ring 34 can extend axially along the end of the pressurization line 21 and engage with the locking tongue 31.

[0058] It should be noted that the hook and ring seat 33 is bolted to the outer periphery of the pressurization pipeline 21. Alternatively, the hook and ring seat 33 can be fixedly connected to the outer periphery of the pressurization pipeline 21 via a pipe clamp or direct welding. Simultaneously, the handle 35 is hinged to the hook and ring seat 33 via a pin, allowing the handle 35 to rotate relative to the hook and ring seat 33. Furthermore, one side of the locking ring 34 is rotatably connected to the handle 35 via a pin, allowing the locking ring 34 to rotate relative to the handle 35.

[0059] In this embodiment, the operator can rotate the handle 35 to engage the locking ring 34 with the locking tongue 31, and continue rotating the handle 35 to lock the locking ring 34 and the locking tongue 31, thereby ensuring a stable connection between the pressurization line 21 and the connecting line 1. When unlocking is required, rotating the handle 35 in the opposite direction will cause the locking ring 34 to rotate or move, disengaging the locking ring 34 from the locking tongue 31, thus unlocking the system and allowing the pressurization line 21 and the connecting line 1 to be separated.

[0060] In actual use, the mobile booster 20 is moved along the slide rail 11 to the connection position. Then, the booster pipe 21 is connected to the connecting pipe 1, and the locking ring 34 is engaged with the locking tongue 31 by rotating the handle 35, ensuring a stable connection between the booster pipe 21 and the connecting pipe 1, thus completing the connection between the booster 20 and the storage tank. At this time, the booster 20 can pressurize the storage tank. When cleaning the booster 20 is required, rotating the handle 35 disengages the locking ring 34 from the locking tongue 31, and disconnects the booster pipe 21 from the connecting pipe 1. The mobile booster 20 is then moved along the slide rail 11 to the cleaning position, facilitating cleaning by personnel.

[0061] See Figure 2 The booster 20 has a connecting rod 40 at each of its two opposite ends, meaning there are two connecting rods 40. Simultaneously, there are two slide rails 11, spaced apart, and the connecting rods 40 at both ends of the booster 20 can slide on the two slide rails 11 respectively.

[0062] Specifically, two slide rails 11 are provided, and the two slide rails 11 are spaced apart. Specifically, the two slide rails 11 are respectively provided on the two side plates 16. One end of the connecting rod 40 is connected to the booster 20, and the other end is connected to the slide rail 11. At the same time, the two connecting rods 40 are connected to the opposite ends of the booster 20 and correspond to the two slide rails 11 respectively, so that the booster 20 can move relative to the mounting base 10 through the connecting rods 40.

[0063] In some other embodiments, the booster 20 may also be connected to the slide rail 11 by a slider, so that the booster 20 can move along the slide rail 11.

[0064] In this embodiment, the slide rail 11 is a moving groove 12 formed on the side plate of the mounting base 10, and the inner side wall of the moving groove 12 is provided with a moving groove 12 and a limiting groove 13.

[0065] The movable groove 12 is a through groove and is connected to the limiting groove 13, so that the accommodating space 17 can be connected to the limiting groove 13. Specifically, the vertical width of the limiting groove 13 is greater than the vertical width of the sliding groove 12, so that the sliding groove 12 and the limiting groove 13 form a "T" shaped cross-section.

[0066] Meanwhile, a movable part 41 and a limiting part 42 are connected to the end of the connecting rod 40 away from the turbocharger 20. The limiting part 42 is located at the end of the movable part 41 away from the turbocharger 20, meaning it is connected to the turbocharger 20 via the sliding part 41. The limiting part 42 protrudes from the periphery of the movable part 41 in a direction away from it, resulting in a "T"-shaped cross-section for both the sliding part 41 and the limiting part 42, and ensuring that they are adapted to the sliding groove 12 and the limiting groove 13, respectively.

[0067] Therefore, the moving part 41 is inserted into the moving groove 12 so that the moving part 41 can move along the moving groove 12. The limiting part 42 is accommodated in the limiting groove 13 and can abut against the inner wall of the limiting groove 13 to limit the moving part 41 within the moving groove and prevent the connecting rod 40 from disengaging from the slide rail 11.

[0068] In this embodiment, the moving part 41 may include a moving segment 43 and a connecting segment 44. One end of the moving segment 43 is connected to the booster 20, and the other end is connected to the connecting segment 44. The end of the connecting segment 44 facing away from the moving segment 43 is connected to the limiting part 42. The moving segment 43 and the connecting segment 44 are arranged at an angle, specifically, the sliding segment 43 and the connecting segment 44 are arranged perpendicular to each other. Furthermore, after the moving part 41 passes through the moving groove 12, the length direction of the moving segment 43 extends along the length direction of the moving groove 12, that is, the sliding segment 43 can increase the contact area between the sliding part 41 and the sliding groove 12, ensuring the stability of the movement process. Moreover, the sliding segment 43 can form a limiting relationship with the side wall of the sliding groove 12, preventing the booster 20 from rotating around the axis of the connecting segment 44.

[0069] It should be noted that the connecting rod 40 is a metal connecting rod made of a wear-resistant alloy material to improve its wear resistance and service life. Of course, in some other embodiments, the connecting rod 40 may also be made of other wear-resistant materials, such as hard plastics, to improve its wear resistance and service life.

[0070] In summary, the mounting base 10 is fixed to the storage tank, and the booster 20 is equipped with a booster pipe 21, which is detachably connected to the connecting pipe 1 of the storage tank, allowing the booster 20 to pressurize the storage tank. Simultaneously, the mounting base 10 is equipped with a slide rail 11, and the booster 20 is connected to the slide rail 11 and can move relative to the mounting base 10 along the slide rail 11, allowing the booster 20 to switch between a connection position and a cleaning position. Specifically, in the connection position, the booster pipe 21 can be connected to or disconnected from the connecting pipe 1, allowing the booster 20 to connect to the storage tank or move relative to the mounting base 10. In the cleaning position, the booster 20 can be moved to a position convenient for cleaning operations, facilitating cleaning personnel to clean the booster 20.

[0071] In addition, this application also provides an LNG tank truck. Specifically, the LNG tank truck includes a chassis, a storage tank, and a storage tank unloading device. The storage tank is mounted on the chassis, enabling the LNG tank truck to move the storage tank.

[0072] Meanwhile, the liquid unloading device for the storage tank is mounted on the vehicle frame and located at the bottom of the storage tank. Specifically, the mounting base 10 can be connected to the vehicle frame and located at or below the bottom of the storage tank.

[0073] The booster 20 is connected to the vehicle frame via the mounting base 10, allowing it to move between the connection position and the cleaning position. In this embodiment, the connection position is located below the vehicle frame, facilitating the connection of the booster pipe 21 of the booster 20 to the connection pipe 1 of the storage tank. Simultaneously, the cleaning position is located away from the horizontal side of the vehicle frame, allowing the booster 20 to be moved to the side of the tanker truck for easy cleaning by cleaning personnel.

[0074] Meanwhile, the booster pipe 21 of the booster 20 is connected to the connecting pipe 1 of the liquid storage tank and is connected through the connecting mechanism 30, so that the booster pipe 21 can be detachably connected to the connecting pipe 1, thereby facilitating the connection or separation of the booster 20 and the liquid storage tank.

[0075] Therefore, in the connected position, the booster line 21 can be connected to or disconnected from the connecting line 1, allowing the booster 20 to connect to the storage tank or to move relative to the mounting base 10. In the cleaning position, the booster 20 can be moved to a position convenient for cleaning operations, facilitating cleaning personnel to clean the booster 20.

[0076] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A liquid unloading device for a liquid storage tank, connected to a liquid storage tank, wherein the liquid storage tank is provided with connecting pipelines, characterized in that, The liquid storage tank unloading device includes: Mounting bracket, connected to the liquid storage tank; A booster is mounted on the mounting base; the booster is provided with a booster pipe, which is connected to the connecting pipe. A connecting mechanism is provided between the pressurization line and the connecting line, such that the pressurization line is detachably connected to the connecting line, and axially restricts the movement of the pressurization line relative to the connecting line. The mounting base is provided with a slide rail that extends toward the connecting pipe. The slide rail has a connection position on one side near the connecting pipe and a cleaning position on the other side. The booster can move along the slide rail relative to the mounting base to switch between the connection position and the cleaning position. When in the connection position, the pressurizing pipeline can remain connected to the connecting pipeline, and the connection mechanism is closed; when the connection mechanism is open, the pressurizer can move along the slide rail to the cleaning position. The booster can be cleaned when it is in the cleaning position.

2. The liquid unloading device for the storage tank according to claim 1, characterized in that, The connecting mechanism includes a locking tongue and a hook assembly; the locking tongue is connected to the connecting pipe, and the hook assembly is connected to the pressurizing pipe; the hook assembly can extend out of the pressurizing pipe and engage the locking tongue to connect the pressurizing pipe to the connecting pipe.

3. The liquid unloading device for the storage tank according to claim 2, characterized in that, The hook and ring assembly includes a hook and ring seat, a locking ring, and a handle; the hook and ring seat is fixed to the pressurization pipeline, the handle is connected to the hook and ring seat and can rotate relative to the hook and ring seat, the locking ring is connected to the handle and can rotate relative to the handle, and under the action of the handle, the locking ring can engage the locking tongue.

4. The liquid unloading device for the storage tank according to claim 1, characterized in that, The supercharger has a connecting rod at each of its opposite ends, and two slide rails are provided, with the two slide rails spaced apart. The connecting rods at both ends of the supercharger are slidably mounted on the two slide rails respectively.

5. The liquid unloading device for the storage tank according to claim 4, characterized in that, The slide rail is a movable groove formed on the side plate of the mounting base. A limiting groove is formed on the inner side wall of the movable groove. The connecting rod is provided with a movable part and a limiting part connected at the end opposite to the supercharger. The limiting part is located at the end of the movable part opposite to the supercharger, and the limiting part protrudes from the periphery of the movable part in a direction away from the movable part. The movable part passes through the movable groove so that the movable part can move along the movable groove. The limiting part is accommodated in the limiting groove, and the limiting part can abut against the inner wall of the limiting groove to limit the movable part within the movable groove.

6. The liquid unloading device for the storage tank according to claim 5, characterized in that, The movable part includes a movable segment and a connecting segment; one end of the movable segment is connected to the booster, and the other end is connected to the connecting segment, and the end of the connecting segment opposite to the movable segment is connected to the limiting part; the movable segment and the connecting segment are arranged at an angle; after the movable part passes through the movable groove, the length direction of the movable segment extends along the length direction of the movable groove.

7. The liquid unloading device for the storage tank according to claim 1, characterized in that, The mounting base has a through clearance groove; one end of the clearance groove is open along its length; the clearance groove is used to pass through the pressurization pipeline, so that the pressurization pipeline can extend to the outside of the mounting base.

8. The liquid unloading device for the storage tank according to claim 1, characterized in that, The mounting base includes a connecting plate and two side plates; the two side plates are spaced apart to form an accommodating space for accommodating the turbocharger between the two side plates; the connecting plate is connected between the two side plates.

9. The liquid unloading device for the storage tank according to claim 8, characterized in that, The side panel has folded plates on both sides in the width direction; the folded plates bend from the side of the side panel and extend toward the interior of the accommodating space.

10. An LNG tanker truck, characterized in that, The LNG tanker truck includes a chassis, a storage tank, and a storage tank unloading device as described in any one of claims 1-9; the storage tank is mounted on the chassis, the storage tank unloading device is disposed on the chassis and located at the bottom of the storage tank, the connection position is located below the chassis, and the cleaning position is away from the horizontal side of the chassis.

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