Movable unloading device for LNG (Liquefied Natural Gas) filling station

Abstract

The utility model discloses a movable unloading device for an LNG (Liquefied Natural Gas) station, which comprises an unloading platform, a plurality of supporting structures are arranged at the bottom of the unloading platform, an unloading pressurizing gasifier, an unloading pipeline and a containing structure for containing an unloading hose are integrated on the unloading platform, and universal trundles are arranged at the bottoms of the supporting structures. The height of the supporting structure is adjustable. The unloading pipeline and the unloading pressurizing vaporizer are integrated together through the unloading platform, unloading site chaos is avoided, unloading operation and management are facilitated, land resources are saved, meanwhile, the unloading platform can move according to project requirements, the height can be adjusted, and the unloading efficiency is improved. The problem that liquid unloading is slow due to the fact that the deviation between the pipe opening height of the unloading pipeline and the pipe opening height of the liquid unloading tank car is too large is solved, the time cost is reduced, the unloading hose can be placed in the storage structure of the unloading platform after unloading is completed, damage and smudginess of the unloading hose are avoided, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of LNG filling stations, and particularly relates to a mobile unloading device for an LNG filling station. Background Art

[0002] Most of the unloading devices used in current LNG filling station equipment are fixed. Especially in some LNG filling stations with narrow equipment layout space, the unloading area will occupy a large piece of land, resulting in a great waste of land resources. Moreover, the height of the nozzle of the unloading pipeline in the existing unloading area of the LNG filling station is fixed. This will cause the elevation deviation between the tanker and the unloading pipeline to be too large and unable to be adjusted due to excessive foundation error and pipeline construction error, resulting in slow unloading of the tanker. At the same time, after unloading, the unloading hose is often placed randomly on the ground, which is easy to cause damage and dirt of the hose, increasing the operation and maintenance cost of replacing the unloading hose, and increasing the maintenance cost due to medium pollution and increasing the number of inspections of the filter. The layout of the equipment and pipelines at the unloading site is chaotic, affecting the unloading efficiency. Content of the Utility Model

[0003] The purpose of the utility model is to provide a mobile unloading device for an LNG filling station to overcome the defects of the prior art. The unloading pipeline and the unloading booster vaporizer are integrated by using an unloading platform, avoiding chaos at the unloading site, facilitating unloading operation and management, saving land resources. At the same time, the unloading platform can be moved according to project requirements, and the height of the unloading platform can be adjusted along with the support columns, avoiding the problem of slow unloading caused by too large deviation between the height of the nozzle of the unloading pipeline and the height of the nozzle of the liquid unloading tanker, reducing the time cost. After unloading, the unloading hose can be placed in the storage structure of the unloading platform, avoiding damage and dirt of the unloading hose, and reducing the maintenance cost.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] A mobile unloading device for an LNG filling station, comprising an unloading platform. A plurality of support structures are arranged at the bottom of the unloading platform. The unloading platform is integrated with an unloading booster vaporizer, an unloading pipeline, and a storage structure for accommodating the unloading hose.

[0006] Wherein, a universal caster is installed at the bottom of each support structure. The support structure includes a support column and a sleeve sleeved thereon. The sleeve is connected to the unloading platform, the support column is connected to the universal caster, a plurality of adjusting waist holes are formed in the sleeve, a plurality of positioning holes are formed in the support column, and the support column and the sleeve are connected by bolts passing through the positioning holes and the adjusting waist holes.

[0007] In one embodiment, the unloader booster vaporizer and the storage structure are respectively arranged at both ends of the unloader platform, and the unloader pipeline is arranged between the booster vaporizer and the storage structure. With this embodiment, it is convenient to connect the booster vaporizer to the unloader pipeline for pressurized liquid unloading during the unloader process. At the same time, it is also convenient to place the unloader hose in the storage structure for storage after the unloader process is completed. There is no obstruction around the unloader booster vaporizer, so that its pressurization effect reaches the best.

[0008] In one embodiment, the unloader pipeline includes an unloader liquid phase pipeline, a liquid phase booster pipeline, and a gas phase booster pipeline. The liquid phase booster pipeline and the gas phase booster pipeline are both connected to the unloader booster vaporizer. The unloader liquid phase pipeline is respectively connected to the liquid unloading tank truck and the LNG pump skid. Low-temperature stop valves are provided on the unloader liquid phase pipeline, the liquid phase booster pipeline, and the gas phase booster pipeline. With this embodiment, using the low-temperature stop valve as the operating valve of the unloader pipeline, the unloader pipeline integrated on the unloader platform also integrates the unloader hose on the unloader platform, and there is also a storage structure for accommodating the unloader hose on the unloader platform, which is convenient for unloader operation and management.

[0009] In one embodiment, a pipeline support for supporting the unloader pipeline is further arranged on the unloader platform, and the pipeline support is located between the storage structure and the booster vaporizer.

[0010] In one embodiment, the storage structure includes a grating plate arranged on the unloader platform, and a plurality of baffles extending in the vertical direction are further installed at the edge of the grating plate. The plurality of baffles enclose a U-shaped structure. With this embodiment, it is convenient to take the unloader hose while preventing the unloader hose from falling.

[0011] In one embodiment, the grating plate is made of fiberglass material. With this embodiment, the grating plate has the properties of low-temperature resistance, non-rusting, and high strength.

[0012] In one embodiment, a plurality of uniformly distributed ventilation holes are formed in each of the baffles.

[0013] In one embodiment, a filter is installed on the unloader liquid phase pipeline. With this embodiment, the installed filter functions to filter the medium, making the medium purity higher.

[0014] In one embodiment, a pressure gauge is installed on the gas phase booster pipeline. With this embodiment, it is convenient to observe the pressurization situation of the unloader at any time.

[0015] The beneficial effects of the present utility model are as follows:

[0016] (1) The unloading platform integrates the unloading pipeline and the unloading booster vaporizer, avoiding chaos at the unloading site, facilitating unloading operations and management, saving land resources. At the same time, the unloading platform can be moved according to project requirements, and the height of the unloading platform can be adjusted along with the support columns, avoiding the problem of slow unloading caused by excessive deviation between the pipe orifice height of the unloading pipeline and the pipe orifice height of the liquid unloading tank truck, reducing the time cost. After unloading, the unloading hose can be placed in the storage structure of the unloading platform, preventing damage and dirt on the unloading hose and reducing the maintenance cost;

[0017] (2) The grating plate made of fiberglass and the baffle with ventilation holes thereon can quickly melt the frost on the unloading hose and drain it out along the grating plate when storing the frosted unloading hose, avoiding water vapor accumulation;

[0018] (3) The cryogenic stop valve installed on the pipeline can be used as the operating valve for unloading. The pressure gauge set on the gas phase pipeline facilitates observing the unloading booster situation at any time. A filter that acts as a filtering medium is also installed on the unloading liquid phase pipeline, making the medium purity higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present utility model will be described in more detail below based on embodiments with reference to the drawings.

[0020] Among them:

[0021] Figure 1 shows the structural schematic diagram of the present utility model;

[0022] Figure 2 shows the structural schematic diagram of the support structure of the present utility model;

[0023] Figure 3 shows the structural schematic diagram of the present utility model in another direction;

[0024] In the drawings, the same components are denoted by the same reference numerals. The drawings are not drawn to actual scale.

[0025] REFERENCE NUMERALS:

[0026] 1 - unloading platform, 2 - support structure, 3 - unloading booster vaporizer, 4 - unloading pipeline, 5 - storage structure, 6 - universal caster, 7 - bolt, 8 - pressure gauge, 9 - filter, 10 - pipeline support, 201 - support column, 202 - sleeve, 203 - adjustment waist hole, 204 - positioning hole, 301 - booster outlet, 302 - booster inlet, 401 - unloading liquid phase pipeline, 402 - liquid phase booster pipeline, 403 - gas phase booster pipeline, 501 - grating plate, 502 - baffle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The present utility model will be further described below in conjunction with the accompanying drawings.

[0028] The present utility model provides a mobile unloading device for an LNG filling station. As Figure 1 and Figure 2 shown, it includes an unloading platform 1. Multiple support structures 2 are arranged at the bottom of the unloading platform 1. An unloading booster vaporizer 3, an unloading pipeline 4, and a storage structure 5 for accommodating the unloading hose are integrated on the unloading platform 1;

[0029] Among them, a universal caster 6 is installed at the bottom of each support structure 2. The support structure 2 includes a support column 201 and a sleeve 202 sleeved thereon. The sleeve 202 is connected to the unloading platform 1, the support column 201 is connected to the universal caster 6. Multiple adjustment waist holes 203 are provided on the sleeve 202, and multiple positioning holes 204 are provided on the support column 201. The support column 201 and the sleeve 202 are connected by bolts 7 passing through the positioning holes 204 and the adjustment waist holes 203;

[0030] It should be noted that, as Figure 1 and Figure 2 shown, in this embodiment, the unloading pipeline 4 and the unloading booster vaporizer 3 are integrated together by using the unloading platform 1, avoiding chaos at the unloading site, facilitating unloading operations and management, saving land resources. At the same time, by using the universal casters 6 installed at the bottom of the support structure 2, the unloading platform 1 can be moved according to project requirements. The universal casters 6 have a locking function. After moving to the target position, locking the universal casters 6 can fix the position of the unloading platform 1. Moreover, the unloading platform 1 can be adjusted in height along with the support column 201, avoiding the problem of slow unloading caused by too large a deviation in the pipe orifice height of the unloading pipeline 4 from the pipe orifice height of the liquid unloading tank truck, reducing the time cost. After unloading, the unloading hose can be placed in the storage structure 5 on the unloading platform 1, avoiding damage and dirt on the unloading hose, and reducing the maintenance cost;

[0031] Specifically, as Figure 1 shown, the unloading booster vaporizer 3 and the storage structure 5 are respectively arranged at both ends of the unloading platform 1, and the unloading pipeline 4 is arranged between the booster vaporizer and the storage structure 5, which is convenient for connecting the booster vaporizer to the unloading pipeline 4 for pressurized liquid unloading during the unloading process. At the same time, it is also convenient to place the unloading hose in the storage structure 5 for storage after unloading. Moreover, there is no obstruction around the unloading booster vaporizer 3 to make its pressurization effect reach the best;

[0032] Furthermore, as Figure 3As shown in the figure, the unloading pipeline 4 includes an unloading liquid-phase pipeline 401, a liquid-phase booster pipeline 402, and a gas-phase booster pipeline 403. The liquid-phase booster pipeline 402 and the gas-phase booster pipeline 403 are both connected to the unloading booster vaporizer 3. The unloading liquid-phase pipeline 401 is respectively connected to the unloading tank truck and the LNG pump skid. Low-temperature stop valves are provided on the unloading liquid-phase pipeline 401, the liquid-phase booster pipeline 402, and the gas-phase booster pipeline 403, and the provided low-temperature stop valves are used as operating valves. The liquid-phase booster pipeline 402 and the gas-phase booster pipeline 403 are both connected to the unloading booster vaporizer 3, and the unloading booster vaporizer 3 is connected to the tank truck through an unloading hose. The unloading hose includes a liquid-phase booster hose connected to the liquid-phase booster pipeline 402 and a gas-phase booster hose connected to the gas-phase booster pipeline 403. The other end of the unloading booster vaporizer 3 is connected to the LNG pump skid through an LNG pump skid venting hose, while one end of the unloading liquid-phase pipeline 401 in the unloading pipeline 4 is connected to the tank truck through a tank truck unloading liquid hose, and the other end is connected to the LNG pump skid through an LNG pump skid unloading hose, that is, the unloading pipeline 4 and the unloading hose are both integrated on the unloading platform 1 to facilitate operation and management;

[0033] In one embodiment, a pipeline support 10 for supporting the unloading pipeline 4 is further provided on the unloading platform 1. The pipeline support 10 is located between the storage structure 5 and the vaporizer, that is, the provided pipeline support 10 supports and fixes the unloading pipeline 4 and the valve body thereon;

[0034] In one embodiment, as Figure 1 shown, the storage structure 5 includes a grating plate 501 provided on the unloading platform 1. A plurality of baffles 502 extending in the vertical direction are further installed at the edge of the grating plate 501. The plurality of baffles 502 enclose a U-shaped structure. The grating plate 501 is made of fiberglass material, and a plurality of uniformly distributed ventilation holes are provided on the baffles 502. The U-shaped structure enclosed by the plurality of baffles 502 facilitates the taking of the unloading hose and at the same time avoids the dropping of the unloading hose. The fiberglass material grating plate 501 and the ventilation holes on the baffles 502 can quickly melt the frost on the unloading hose when storing the frosted unloading hose and drain it along the grating plate 501 to avoid the accumulation of water vapor;

[0035] In one embodiment, as Figure 1 and Figure 3 shown, a filter 9 is installed on the unloading liquid-phase pipeline 401 to filter the medium and make the medium purity higher. A pressure gauge 8 is installed on the gas-phase booster pipeline 403 to facilitate observing the unloading booster situation at any time;

[0036] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0037] Although the present utility model has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present utility model. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed, as long as they do not deviate from the spirit and scope of the present utility model as defined by the appended claims. It should be understood that the different dependent claims and the features described herein can be combined in a manner different from that described in the original claims. It should also be understood that the features described in connection with a single embodiment can be used in other described embodiments.

Claims

1. A mobile unloading device for LNG filling station, characterized in that: It comprises a car unloading platform, a plurality of supporting structures are arranged at the bottom of the car unloading platform, and a car unloading supercharger gasifier, a car unloading pipeline and a storage structure for accommodating a car unloading hose are integrated on the car unloading platform; Among them, a universal caster is installed at the bottom of each supporting structure, and the supporting structure includes a supporting column and a sleeve mounted thereon, the sleeve is connected to the unloading platform, the supporting column is connected to the universal caster, a plurality of adjustment holes are opened on the sleeve, a plurality of positioning holes are opened on the supporting column, and the supporting column and the sleeve are connected by bolts passing through the positioning holes and the adjustment holes.

2. A mobile unloading device for an LNG filling station according to claim 1, characterized in that: The unloading supercharged gasifier and the storage structure are respectively arranged at two ends of the unloading platform, and the unloading pipeline is arranged between the supercharged gasifier and the storage structure.

3. A mobile unloading device for LNG filling station according to claim 1 or 2, characterized in that: The unloading pipeline includes an unloading liquid phase pipeline, a liquid phase boosting pipeline and a gas phase boosting pipeline. The liquid phase boosting pipeline and the gas phase boosting pipeline are both connected to the unloading boosting gasifier. The unloading liquid phase pipeline is respectively connected to the unloading liquid tank truck and the LNG pump skid. The unloading liquid phase pipeline, the liquid phase boosting pipeline and the gas phase boosting pipeline are all provided with low-temperature stop valves.

4. A mobile unloading device for LNG filling station according to claim 3, characterized in that: The unloading platform is also provided with a pipe support for supporting the unloading pipe, and the pipe support is located between the storage structure and the supercharged gasifier.

5. The mobile unloading device for LNG filling station according to claim 1, characterized in that: The storage structure comprises a grille plate arranged on the unloading platform, and a plurality of baffles extending in a vertical direction are installed on the edge of the grille plate, and the plurality of baffles form a U-shaped structure.

6. The mobile unloading device for LNG filling station according to claim 5, characterized in that: The grid plate is made of glass fiber material.

7. The mobile unloading device for LNG filling station according to claim 5, characterized in that: The baffles are each provided with a plurality of evenly distributed ventilation holes.

8. The mobile unloading device for LNG filling station according to claim 3, characterized in that: A filter is installed on the unloading liquid phase pipeline.

9. The mobile unloading device for LNG filling station according to claim 3, characterized in that: A pressure gauge is installed on the gas phase pressurization pipeline.

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