A skid-mounted liquefied natural gas vehicle refueling device

Abstract

This utility model relates to the field of skid-mounted refueling technology and discloses a skid-mounted liquefied natural gas (LNG) vehicle refueling device, including an explosion-proof enclosure. Refueling machines are installed on both sides of the explosion-proof enclosure, and a lifting ring is located at the top corner of the enclosure. A maintenance port is located at the top of the enclosure, and protective rods are located on both sides of the top. A protective assembly is located at the front end of the enclosure, comprising a mounting plate, a protective rigid plate, and a honeycomb aluminum core plate. Support blocks are fixedly installed on one side of the explosion-proof enclosure at both the front and rear ends, with the mounting plate close to the enclosure. The protective assembly reduces the probability of deformation of the explosion-proof enclosure under stress, improving the protective effect and preventing most of the impact force from being directly transmitted to the fixed bottom surface, thus reducing damage to the ground.

Description

Technical Field

[0001] This utility model relates to the field of skid-mounted refueling technology, specifically a skid-mounted liquefied natural gas (LNG) vehicle refueling device. Background Technology

[0002] A skid-mounted liquefied natural gas (LNG) refueling unit is an integrated, modular mobile or stationary LNG refueling device designed to provide fuel for LNG vehicles such as heavy trucks and buses. Its functional components are pre-installed in a transportable metal frame "skid," with an overall container-like structure, enabling rapid deployment and flexible movement.

[0003] A search revealed a Chinese patent for a skid-mounted liquefied natural gas (LNG) vehicle refueling device, publication number CN206036645U. The device includes a housing and an LNG storage tank located inside the housing. The LNG storage tank is connected to a reversing valve, with a first outlet connected to a first pump sump and a second outlet connected to an unloading port.

[0004] The above-mentioned device is easy to transport and allows customers to move stations flexibly; the box-type skid-mounted refueling unit contains two pumps and two dual-nozzle gas dispensers, doubling the gas dispensing capacity compared to the original box-type refueling unit; due to the reversing valve, when the storage tank is replenished with liquefied natural gas, the other pump pool can still be used as usual, realizing refueling while unloading, and eliminating the problem of not being able to use it when adding liquid to the storage tank;

[0005] However, in scenarios where heavy truck fleets are concentrated for transportation, such as construction sites, mines, and emergency rescue, the ground is not flat and vehicles are prone to slipping and colliding with the container. If only the outer casing of the storage tank is used for protection, the outer wall is still prone to deformation, which may squeeze the storage tank and cause the stored oil to leak. Utility Model Content

[0006] The purpose of this invention is to provide a skid-mounted liquefied natural gas (LNG) vehicle refueling device that can effectively solve the problems in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A skid-mounted liquefied natural gas (LNG) vehicle refueling device includes an explosion-proof enclosure, with refueling machines installed on both sides of the enclosure, a lifting ring installed at the corner of the top of the enclosure, a maintenance port installed at the top of the enclosure, protective bars installed at both sides of the top of the enclosure, and a protective component installed at the front of the enclosure.

[0009] The protective assembly includes a mounting plate, a protective rigid plate, and a honeycomb aluminum core plate. Support blocks are fixedly installed on both the front and rear ends of one side of the explosion-proof enclosure. A fixed slider, compatible with the support blocks, is fixedly installed on the side of the mounting plate closest to the explosion-proof enclosure. The mounting plate is slidably mounted on the side of the support blocks away from the explosion-proof enclosure via the fixed slider. A support plate is provided on the side of the mounting plate away from the support blocks. The protective rigid plate is movably mounted on the support plate. A mounting groove, compatible with the honeycomb aluminum core plate, is provided at the top of the support plate. The honeycomb aluminum core plate is secured to the opposite side of the protective rigid plate and the mounting plate via the mounting groove. A shear bolt is threadedly connected to the connection between the fixed slider and the support block.

[0010] Preferably, the explosion-proof enclosure is equipped with a liquid storage tank inside, and a leak detection probe that is compatible with the filling machine is installed at the front of the top of the explosion-proof enclosure.

[0011] Preferably, a leakage alarm is installed on the upper part of the side of the explosion-proof enclosure away from the mounting plate, and a detection probe that matches the leakage alarm is installed inside the explosion-proof enclosure.

[0012] Preferably, a support slide is fixedly installed at the bottom of the explosion-proof enclosure, a fixed base is movably installed at the bottom of the support slide, and several rotating rods are rotatably installed inside the fixed base and below the support slide.

[0013] Preferably, a rubber buffer block is installed on the upper inner side of the fixed base, and a circular damper is installed on the lower inner side of the fixed base. Abutment plates are detachably installed on both sides of the fixed base by fixing bolts. The abutment plates are connected to the end of the circular damper and the rubber buffer block away from the support slide.

[0014] Preferably, the explosion-proof enclosure is movably mounted on the top of the fixed base via a support slide, and the bottom surface of the fixed base is provided with anti-slip texture.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention, through the installation of protective components in conjunction with an explosion-proof enclosure, prevents direct contact between the impacting object and the protective rigid plate when the front of the enclosure is accidentally impacted by a vehicle. This reduces the damage to the storage tank caused by deformation of the enclosure. Furthermore, the honeycomb aluminum core plate absorbs energy through timely and instantaneous shearing and collapse, further reducing the impact force. By using a fixed slider to slide horizontally on the support block, the shearing bolts can be sheared under force, further reducing the probability of deformation of the explosion-proof enclosure. This improves the protective effect and reduces the probability of deformation of the explosion-proof enclosure.

[0017] By setting up a support slide, rotating rod, rubber buffer block, and circular damper to work together, the support slide can move on the fixed base when the explosion-proof box is subjected to force. At this time, the timely and effective deformation of the rubber buffer block and circular damper can buffer the support slide. The non-rigid connection avoids most of the impact force being directly transmitted to the fixed bottom surface, reducing damage to the ground. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a skid-mounted liquefied natural gas vehicle refueling device according to an embodiment of this utility model;

[0019] Figure 2 This is a top view of the protective rigid plate, honeycomb aluminum core plate, and fixed slider in the embodiment of this utility model;

[0020] Figure 3 This is a cross-sectional view of the supporting slide and mounting plate in an embodiment of this utility model.

[0021] In the diagram: 1. Explosion-proof enclosure; 2. Filling machine; 3. Leak detection probe; 4. Protective rod; 5. Protective components; 6. Mounting plate; 7. Protective rigid plate; 8. Honeycomb aluminum core panel; 9. Fixed slider; 10. Support block; 11. Shear bolt; 12. Support slide; 13. Rotating rod; 14. Rubber buffer block; 15. Circular ring damper; 16. Leak alarm; 17. Lifting ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] Combination Figures 1-3 A skid-mounted liquefied natural gas (LNG) vehicle refueling device includes an explosion-proof enclosure 1, refueling machines 2 on both sides of the explosion-proof enclosure 1, a lifting ring 17 at the top corner of the explosion-proof enclosure 1, a maintenance port at the top of the explosion-proof enclosure 1, protective rods 4 at the top sides of the explosion-proof enclosure 1, and a protective component 5 at the front end of the explosion-proof enclosure 1.

[0025] See Figure 2 and Figure 3Furthermore, the protective component 5 comprises a mounting plate 6, a protective rigid plate 7, and a honeycomb aluminum core plate 8. Support blocks 10 are fixedly installed on both the front and rear ends of one side of the explosion-proof enclosure 1. A fixed slider 9, compatible with the support block 10, is fixedly installed on the side of the mounting plate 6 closest to the explosion-proof enclosure 1. The mounting plate 6 is slidably mounted on the side of the support block 10 away from the explosion-proof enclosure 1 via the fixed slider 9. A support plate is provided on the side of the mounting plate 6 away from the support block 10. The protective rigid plate 7 is movably mounted on the support plate. The top of the support plate is provided with a component compatible with the honeycomb aluminum core plate. The mounting slot of plate 8 is adapted to match the honeycomb aluminum core plate 8. The protective hard plate 7 and the mounting plate 6 are connected to the opposite side of the mounting plate 6 through the mounting slot. The fixed slider 9 and the support block 10 are connected by a shear bolt 11. The explosion-proof enclosure 1 is equipped with a liquid storage tank. The top of the explosion-proof enclosure 1 is equipped with a leak detection probe 3 adapted to the filling machine 2. The side of the explosion-proof enclosure 1 away from the mounting plate 6 is equipped with a leak alarm 16. The explosion-proof enclosure 1 is equipped with a detection probe that matches the leak alarm 16.

[0026] Specifically, when the front of the explosion-proof enclosure 1 is accidentally impacted, the impacting object will directly contact the protective rigid plate 7. Because the protective rigid plate 7 is made of high-manganese steel, it effectively blocks the impacting object, preventing direct contact with the explosion-proof enclosure 1 and reducing the probability of damage and deformation. This prevents the storage tank inside the explosion-proof enclosure 1 from being crushed or damaged. Furthermore, when the protective rigid plate 7 receives an impact force greater than 150kN, it will trigger the honeycomb aluminum core plate 8, causing it to enter a controlled shearing stage. At this time, the honeycomb aluminum core plate 8... The honeycomb walls buckle layer by layer to absorb 60-70% of the kinetic energy, thereby reducing the impact force. At the same time, after the honeycomb aluminum core panel 8 is compressed into place, the mounting plate 6 is slidably mounted on the support block 10 through the fixed slider 9. At this time, the residual kinetic energy will push the fixed slider 9 to move horizontally on the support block 10, and the shear bolt 11 will break into two pieces. During maintenance, the personnel can remove the used honeycomb core and insert a new core. Then, two new shear bolts 11 can be installed at the connection between the support block 10 and the fixed slider 9 to complete the reset for the next use.

[0027] Example 2

[0028] See Figure 3Furthermore, based on Embodiment 1, the following is further provided: a support slide 12 is fixedly installed at the bottom of the explosion-proof enclosure 1; a fixed base is movably installed at the bottom of the support slide 12; several rotating rods 13 are rotatably installed inside the fixed base and below the support slide 12; a rubber buffer block 14 is installed at the upper inner side of the fixed base; a circular damper 15 is installed at the lower inner side of the fixed base; and abutment plates are detachably installed on both sides of the fixed base via fixing bolts. The abutment plates are connected to the ends of the circular damper 15 and the rubber buffer block 14 away from the support slide 12. The explosion-proof enclosure 1 is movably installed on the top of the fixed base via the support slide 12; and the bottom surface of the fixed base is provided with anti-slip texture.

[0029] Specifically, when the explosion-proof enclosure 1 is impacted, since the explosion-proof enclosure 1 is movably mounted on the fixed base via the support slide 12, the support slide 12 will slide within the fixed base. During the sliding process, it will compress the rubber buffer block 14 and the annular damper 15. The timely and effective movement of the rubber buffer block 14 and the annular damper 15 will buffer and reduce the impact force, preventing the impact force from being directly transmitted to the fixed ground, thereby reducing damage to the ground and improving support stability. Furthermore, when the support slide 12 moves, the friction at the connection between the support slide 12 and the fixed base can be reduced by rotating the set rotating rod 13.

[0030] In actual operation, the steps of refueling the vehicle with liquefied natural gas through the refueling machine 2 in the existing technology will not be described here. When the front of the explosion-proof enclosure 1 is accidentally hit, the impacting object will directly contact the protective hard plate 7. Since the protective hard plate 7 is a hard plate made of high manganese steel, it can effectively block the impacting object and prevent the object from directly contacting the explosion-proof enclosure 1, reducing the probability of damage and deformation of the explosion-proof enclosure 1, thereby preventing the storage tank inside the explosion-proof enclosure 1 from being squeezed and damaged.

[0031] Furthermore, when the protective rigid plate 7 receives an impact force greater than 150kN, it will trigger the honeycomb aluminum core plate 8, causing it to enter the controllable shearing stage. At this time, the honeycomb walls of the honeycomb aluminum core plate 8 buckle layer by layer to absorb 60-70% of the kinetic energy, thereby reducing the impact force. At the same time, after the honeycomb aluminum core plate 8 is compressed into place, because the mounting plate 6 is slidably mounted on the support block 10 through the fixed slider 9, the residual kinetic energy will push the fixed slider 9 to move horizontally on the support block 10, and the shearing bolt 11 will break into two pieces. During maintenance, personnel can remove the used honeycomb core and insert a new core. Then, two new shearing bolts 11 can be installed at the connection between the support block 10 and the fixed slider 9 to complete the reset for the next use.

[0032] Furthermore, the installation of lifting rings 17 allows personnel to use cranes and other construction tools for hoisting, while the installation of protective bars 4 can protect workers who climb to heights for inspection and maintenance. In the event of a leak, the leak alarm 16 can sound an alarm to alert the user. The leak detection probe 3 is model IFM-SI5000, and the leak alarm 16 is model GASTiger6000.

[0033] When the explosion-proof enclosure 1 is impacted, the explosion-proof enclosure 1 is movably mounted on the fixed base via the support slide 12. At this time, the support slide 12 will slide within the fixed base, and during the sliding process, it will compress the rubber buffer block 14 and the circular damper 15. The timely and effective movement of the rubber buffer block 14 and the circular damper 15 will buffer and reduce the impact force, preventing the impact force from being directly transmitted to the fixed ground, thereby reducing damage to the ground and improving the support stability. In addition, when the support slide 12 moves, the friction at the connection between the support slide 12 and the fixed base can be reduced by rotating the set rotating rod 13.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A skid-mounted liquefied natural gas vehicle filling device, comprising a barrier explosion-proof box body (1), both sides of the barrier explosion-proof box body (1) are provided with a filling machine (2), and a lifting ring (17) is arranged at the top corner position of the barrier explosion-proof box body (1), a maintenance opening is arranged at the top end of the barrier explosion-proof box body (1), and a protective rod (4) is arranged at the top corner position of the barrier explosion-proof box body (1), characterized in that: The front end of the explosion-proof enclosure (1) is provided with a protective component (5); The protective component (5) has an installation plate (6), a protective hard plate (7), and a honeycomb aluminum core plate (8). Support blocks (10) are fixedly installed on both the front and rear ends of one side of the explosion-proof enclosure (1). A fixed slider (9) that is compatible with the support block (10) is fixedly installed on the side of the installation plate (6) close to the explosion-proof enclosure (1). The installation plate (6) is slidably installed on the side of the support block (10) away from the explosion-proof enclosure (1) via the fixed slider (9). A support plate is provided on the side of the installation plate (6) away from the support block (10). The protective hard plate (7) is movably installed on the support plate. An installation groove that is compatible with the honeycomb aluminum core plate (8) is provided at the top of the support plate. The honeycomb aluminum core plate (8) is locked onto the opposite side of the protective hard plate (7) and the installation plate (6) via the installation groove. A shear bolt (11) is threadedly connected to the connection between the fixed slider (9) and the support block (10).

2. A skid-mounted LNG vehicle refueling device according to claim 1, characterized in that: The explosion-proof enclosure (1) is equipped with a liquid storage tank inside, and a leak detection probe (3) that is compatible with the filling machine (2) is installed at the front of the top of the explosion-proof enclosure (1).

3. A skid-mounted LNG vehicle refueling device according to claim 1, characterized in that: A leakage alarm (16) is installed on the upper side of the explosion-proof enclosure (1) away from the mounting plate (6), and a detection probe that matches the leakage alarm (16) is installed inside the explosion-proof enclosure (1).

4. The skid-mounted LNG vehicle refueling device of claim 1, wherein: The bottom end of the explosion-proof enclosure (1) is fixedly installed with a support slide (12), and the bottom end of the support slide (12) is movably installed with a fixed base. Several rotating rods (13) are rotatably installed inside the fixed base and below the support slide (12).

5. A skid-mounted LNG vehicle refueling device according to claim 4, characterized in that: A rubber buffer block (14) is installed on the upper inner side of the fixed base, and a circular damper (15) is installed on the lower inner side of the fixed base. Abutment plates are detachably installed on both sides of the fixed base by fixing bolts. The abutment plates are connected to the end of the circular damper (15) and the rubber buffer block (14) away from the support slide (12).

6. A skid-mounted LNG vehicle refueling device according to claim 5, characterized in that: The explosion-proof enclosure (1) is movably mounted on the top of the fixed base via a support slide (12), and the bottom surface of the fixed base is provided with anti-slip texture.

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