Skid-mounted refueling device

By splitting the skid-mounted refueling device into independent functional modules, the problem of difficult to flexibly change the oil storage volume and filling method of the existing skid-mounted refueling device is solved, and flexible adaptability and cost reduction for different refueling needs are achieved.

CN222540480UActive Publication Date: 2025-02-28BEIJING ZHUANGDA RUIYE TECH TRADE +1
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Patent Information

Application Number
CN202421209896.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-30
Publication Date
2025-02-28
Estimated Expiration
2034-05-30

AI Technical Summary

Technical Problem

The oil storage and filling methods of existing skid-mounted refueling devices are difficult to flexibly change, resulting in poor functional flexibility in dealing with different refueling needs, and the cost of renovation and expansion is high.

Method used

The ski-mounted refueling device is divided into four functional modules: oil tank ski mechanism, oil-receiving/transmitting oil-receiving and transporting oil-receiving and refueling machine gravity refueling mechanism. Each set of modules is independent of the ski and has an independent steel base structure, which can be flexibly assembled and applied.

Benefits of technology

It significantly improves the flexibility of functions to cope with different refueling needs, reduces operating costs, and can be independently transported and flexibly assembled.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a skid-mounted refueling device which comprises an oil tank skid mechanism, an oil guide pipeline structure and an oil receiving / sending skid mechanism. An oil outlet port of the oil tank skid mechanism is detachably connected with an oil inlet port of the receiving / transmitting oil skid mechanism through the oil guide pipeline structure; and the oil guide pipeline structure is detachably provided with a gravity refueling sledge mechanism in a closed communicating and assembling manner. The skid-mounted refueling device solves the technical problems that in the prior art, a skid-mounted refueling device is an integrated oil supply device, the oil storage amount and the refueling mode of the skid-mounted refueling device are difficult to flexibly change and transform, the function flexibility of the skid-mounted refueling device for meeting different refueling requirements is poor, and the reconstruction and expansion cost is high.
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Description

Technical Field

[0001] The utility model relates to the technical field of skid-mounted refueling, in particular to a skid-mounted refueling device. Background Art

[0002] As an emerging strategic industry, general aviation and transport aviation together constitute the "two wings" of the civil aviation transportation system. Aviation fuel is the blood and food of general aviation, and airport fuel supply is an important support and prerequisite for general aviation. At present, the general aviation industry has the characteristics of small scale base, small number of aircraft, short flight time, and low hourly fuel consumption of aircraft. General airport fuel consumption is characterized by many points, wide area, small amount, many types, strong seasonality, and imperfect fuel supply guarantee system. As a new type of mobile refueling equipment, skid-mounted refueling devices play an increasingly important role in general aviation fuel supply guarantee.

[0003] In the prior art, the skid-mounted refueling device includes a series of equipment such as storage tanks, filter separators, oil receiving / sending pumps, flow meters, refueling machines, and power distribution cabinets, and has three major functions: receiving / sending, storage, and refueling. However, as a complete set of oil supply devices, all the equipment of the existing skid-mounted refueling device shares an H-steel base, the internal equipment is compactly installed, and the operating space is small. Its oil storage capacity and refueling method are determined when the skid-mounted refueling device is installed and delivered, and cannot be changed. This means that although the skid-mounted refueling device can meet the current oil supply guarantee tasks of general airports, with the rapid development of the general aviation industry, the oil consumption and refueling methods of general airports will undergo new changes, and the existing skid-mounted refueling device is difficult to meet the new oil supply guarantee needs.

[0004] The new fuel supply security requirements mainly include:

[0005] 1) Increased oil consumption

[0006] The function configuration of the skid-mounted refueling device and the storage tank capacity are generally 30m 3 or 50m 3 However, according to the clause "MH5008-2017 Civil Transport Airport Fuel Supply Engineering Design Specifications" that "the storage capacity of the operating airport oil depot should meet the aviation fuel supply demand of not less than 7 days of average daily refueling in the first half of the operation period", and the clause "4.2.4 The storage capacity of the oil depot should be designed according to the current construction target annual forecast of not less than 20 days, and planned according to the long-term target annual forecast of not less than 30 days" in the "MH5029-2014 Small Civil Transport Airport Fuel Supply Engineering Design Specifications", when the general airport's fuel consumption increases, the existing storage tanks will no longer meet the above-mentioned fuel storage capacity requirements (minimum not less than 7 days), and the general airport needs to increase the frequency of fuel intake and the amount of fuel intake each time. This not only increases the workload of the operating personnel, but also affects the airport's fuel consumption and the airport's flight mission if the fuel is not delivered in time.

[0007] 2) Changes in filling methods

[0008] If the skid-mounted refueling device is used in conjunction with a tanker truck, it needs to be equipped with receiving / sending and storage functions; if the skid-mounted refueling device needs to refuel the aircraft alone, it needs to be equipped with oil receiving, storage and filling functions; and refueling is divided into gravity refueling and pressure refueling, and gravity refueling can be divided into refueling gun mode and refueling machine mode (the two are mainly different in refueling flow). When a new general aviation flight company moves into a general airport, the refueling method of the existing skid-mounted refueling device may no longer meet the refueling needs of the new company.

[0009] However, in order to meet new oil supply security demands such as increasing oil storage capacity and changing refueling methods, oil supply security companies are unable to carry out structural modifications to the existing integrated skid-mounted refueling equipment and can only purchase new skid-mounted refueling equipment. This increases the company's investment costs for expansion and renovation, and is unable to respond stably to subsequent changes in demand. Utility Model Content

[0010] To this end, the utility model provides a skid-mounted refueling device to solve the technical problems that the skid-mounted refueling device in the prior art is a complete integrated oil supply device, and its oil storage capacity and filling method are difficult to flexibly change and modify, resulting in poor functional flexibility in responding to different refueling needs and high cost of modification and expansion.

[0011] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0012] A skid-mounted refueling device, comprising:

[0013] Oil tank skid mechanism, oil guide pipeline structure and oil receiving / sending skid mechanism;

[0014] The oil outlet port of the oil tank skid mechanism is connected and assembled with the oil inlet port of the oil receiving / sending skid mechanism in a detachable manner through the oil guide pipeline structure;

[0015] The oil-conducting pipeline structure is detachably and enclosedly connected and assembled with a gravity refueling skid mechanism.

[0016] On the basis of the above technical solution, the utility model is further described as follows:

[0017] As a further solution of the utility model, it also includes:

[0018] Butt flange structure;

[0019] The oil outlet port of the oil tank skid mechanism and the oil guide pipeline structure are detachably connected and assembled via the docking flange structure;

[0020] The oil inlet port of the oil receiving / discharging skid mechanism and the oil guide pipeline structure are detachably connected and assembled via the docking flange structure;

[0021] The gravity refueling skid mechanism and the oil guide pipeline structure are connected and assembled in a detachable and closed manner via the docking flange structure.

[0022] As a further solution of the utility model, the oil tank skid mechanism includes a first steel base, an oil tank skid body fixedly mounted on the first steel base, and an oil tank skid oil inlet pipe and an oil tank skid oil outlet pipe respectively connected and mounted on the oil inlet and outlet ports of the oil tank skid body in a one-to-one correspondence;

[0023] The oil receiving / dispatching skid mechanism comprises a second steel base, an oil receiving / dispatching skid body and an oil receiving / dispatching skid oil inlet pipeline; the oil receiving / dispatching skid body is fixedly mounted on the second steel base, and the oil inlet port of the oil receiving / dispatching skid body is connected and mounted with the oil receiving / dispatching skid oil inlet pipeline;

[0024] The oil guide pipeline structure includes an oil guide main pipeline;

[0025] The inlet end of the oil guide main pipeline is connected to the oil outlet pipeline of the oil tank skid by the butt flange structure, and the outlet end of the oil guide main pipeline is connected to the oil inlet pipeline of the oil receiving / dispatching skid by the butt flange structure.

[0026] As a further solution of the utility model, the gravity refueling skid mechanism includes a pressure gravity refueling skid mechanism and / or a refueling machine gravity refueling skid mechanism which is detachably and closedly connected and assembled with the oil guiding main pipeline.

[0027] As a further solution of the utility model, the oil guide pipeline structure further includes a pressure branch pipeline;

[0028] The pressure branch pipes are provided in several groups, one end of each group of the pressure branch pipes is connected and assembled with the oil-conducting main pipe, and the other end of each group of the pressure branch pipes is provided with a switchable closed / conducting docking flange structure.

[0029] As a further solution of the utility model, the pressure gravity refueling skid mechanism includes a third steel base, a pressure gravity refueling skid body fixedly mounted on the third steel base, and a pressure conduction pipe correspondingly connected and mounted on the output port of the pressure gravity refueling skid body;

[0030] The pressure conducting pipeline and the pressure branch pipeline are connected and assembled in a detachable and closed manner via the docking flange structure.

[0031] As a further solution of the utility model, the oil guide pipeline structure also includes a fuel dispenser branch pipeline;

[0032] The fuel dispenser branch pipes are provided in several groups, one end of each group of fuel dispenser branch pipes are respectively connected and assembled with the oil guide main pipe, and the other end of each group of fuel dispenser branch pipes are provided with a switchable closed / conducting docking flange structure.

[0033] As a further solution of the utility model, the tanker gravity refueling skid mechanism includes a fourth steel base, a tanker gravity refueling skid body fixedly mounted on the fourth steel base, and a tanker conduction pipe correspondingly connected and mounted on the output port of the tanker gravity refueling skid body;

[0034] The fuel dispenser conducting pipe and the fuel dispenser branch pipe are connected and arranged in a detachable closed connection assembly via the docking flange structure.

[0035] As a further solution of the utility model, the oil inlet pipeline of the oil tank skid, the oil outlet pipeline of the oil tank skid, the oil inlet pipeline of the receiving / sending oil skid, the pressure conducting pipeline and the fuel dispenser conducting pipeline are all connected and equipped with a control valve structure.

[0036] As a further solution of the utility model, the oil tank skid mechanisms are provided with at least two groups, and the at least two groups of the oil tank skid mechanisms are arranged in parallel, and the oil tank skid oil outlet pipelines of the at least two groups of the oil tank skid mechanisms are connected and assembled with the inlet end of the oil guide main pipeline through a docking flange structure, and the oil tank skid oil inlet pipelines of the at least two groups of the oil tank skid mechanisms are connected and assembled with the oil inlet main pipeline through a docking flange structure.

[0037] The utility model has the following beneficial effects:

[0038] The device splits the traditional skid-mounted refueling integrated oil supply device into four functional modules: an oil tank skid mechanism, an oil receiving / sending skid mechanism, a pressure gravity refueling skid mechanism and a refueling machine gravity refueling skid mechanism. This allows each group of functional modules to be independently skidded and each has an independent steel base structure, which can be transported separately. At the same time, each group of functional modules can be flexibly assembled and applied based on the oil storage capacity and refueling method, which significantly improves the functional flexibility and adaptability to meet different refueling needs and reduces operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for the implementation methods or the description of the prior art will be briefly introduced below. The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the utility model without affecting the effects and purposes that can be achieved by the utility model.

[0040] Figure 1 A schematic diagram of the overall functional architecture of the skid-mounted refueling device provided in an embodiment of the utility model.

[0041] Figure 2 The skid-mounted refueling device provided in the embodiment of the utility model corresponds to the schematic diagram of the assembly connection structure of the oil tank skid mechanism and the oil receiving / sending skid mechanism.

[0042] Figure 3 The skid-mounted refueling device provided in the embodiment of the utility model corresponds to the mounting structure of the oil tank skid mechanism and the assembly connection structure schematic diagram of the oil receiving / sending skid mechanism and the pressure gravity refueling skid mechanism.

[0043] Figure 4 The skid-mounted refueling device provided for the embodiment of the utility model corresponds to the installation structure of the oil tank skid mechanism and the assembly connection structure schematic diagram of the oil receiving / sending skid mechanism, the pressure gravity refueling skid mechanism and the tanker gravity refueling skid mechanism.

[0044] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0045] Oil tank skid mechanism 1: a first steel base 11, an oil tank skid body 12, an oil tank skid oil inlet pipeline 13, and an oil tank skid oil outlet pipeline 14;

[0046] Oil guide pipeline structure 2: oil guide main pipeline 21, pressure branch pipeline 22, fuel dispenser branch pipeline 23;

[0047] Oil receiving / dispatching skid mechanism 3: second steel base 31, oil receiving / dispatching skid body 32, oil receiving / dispatching skid oil inlet pipeline 33;

[0048] Pressure gravity refueling skid mechanism 4: a third steel base 41, a pressure gravity refueling skid body 42, and a pressure conducting pipe 43;

[0049] Fuel dispenser gravity refueling skid mechanism 5: fourth steel base 51, fuel dispenser gravity refueling skid body 52, fuel dispenser conducting pipe 53;

[0050] Butt flange structure 6; control valve structure 7; main oil inlet pipeline 8. DETAILED DESCRIPTION

[0051] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] The terms such as "upper", "lower", "left", "right", and "middle" used in this specification are only for the convenience of description and are not intended to limit the scope of the present invention. Changes or adjustments to their relative relationships shall be deemed to be within the scope of the present invention without substantially changing the technical content.

[0053] like Figures 1 to 4 As shown, the embodiment of the utility model provides a skid-mounted refueling device, including an oil tank skid mechanism 1, an oil guide pipe structure 2, an oil receiving / dispatching skid mechanism 3, a pressure gravity refueling skid mechanism 4, a refueling machine gravity refueling skid mechanism 5, a docking flange structure 6 and a control valve structure 7, which is used to split the traditional skid-mounted refueling integrated oil supply device into four groups of functional modules, namely, the oil tank skid mechanism 1, the oil receiving / dispatching skid mechanism 3, the pressure gravity refueling skid mechanism 4 and the refueling machine gravity refueling skid mechanism 5, so that each group of functional modules can be skidded separately, and each has an independent steel base structure, and can be transported separately. At the same time, each group of functional modules can be flexibly assembled and applied based on the oil storage capacity and the filling method, which significantly improves the functional flexibility and adaptability to meet different refueling needs and effectively reduces the operating cost. The specific settings are as follows:

[0054] Please refer to Figure 1 The oil tank skid mechanism 1 includes a first steel base 11, an oil tank skid body 12 fixedly mounted on the first steel base 11, and an oil tank skid oil inlet pipe 13 and an oil tank skid oil outlet pipe 14 respectively connected and mounted on the oil inlet and outlet ports of the oil tank skid body 12 in a one-to-one correspondence, so as to effectively complete the independent transportation, oil storage and predetermined inlet and outlet oil guiding functions of the oil tank skid body 12 through the above-mentioned structural arrangement.

[0055] The oil receiving / dispatching skid mechanism 3 comprises a second steel base 31, an oil receiving / dispatching skid body 32 and an oil receiving / dispatching skid oil inlet pipeline 33; wherein the oil receiving / dispatching skid body 32 is fixedly assembled on the second steel base 31, and the oil inlet port of the oil receiving / dispatching skid body 32 is connected and assembled with the oil receiving / dispatching skid oil inlet pipeline 33, and the oil receiving / dispatching skid oil inlet pipeline 33 is connected and arranged with the oil tank skid oil outlet pipeline 14 through the oil guide pipeline structure 2, so that the oil receiving / dispatching skid body 32 is used as a basic functional structure assembled and connected with the oil-using equipment, and the oil tank skid body 12 is used as the oil supply structure of the oil receiving / dispatching skid body 32, and the oil supply function of the oil receiving / dispatching skid body 32 can be completed by means of the oil guide pipeline structure 2.

[0056] Specifically, the oil guide pipeline structure 2 includes an oil guide main pipeline 21, a pressure branch pipeline 22 and a fuel dispenser branch pipeline 23; wherein, the inlet end of the oil guide main pipeline 21 and the oil tank skid oil outlet pipeline 14 are connected and assembled via the docking flange structure 6, and the outlet end of the oil guide main pipeline 21 and the oil receiving / sending skid oil inlet pipeline 33 are connected and assembled via the docking flange structure 6; the pressure branch pipeline 22 and the fuel dispenser branch pipeline 23 are both provided with a plurality of groups, one end of the plurality of groups of the pressure branch pipelines 22 and one end of the plurality of groups of the fuel dispenser branch pipelines 23 The plurality of pressure branch pipes 22 and the plurality of fuel dispenser branch pipes 23 are connected and assembled with each other at the other ends thereof, and a switchable closed / conducted butt flange structure 6 is provided, so that the pressure branch pipes 22 can be connected and conducted with at least one group of pressure gravity fueling skid mechanisms 4, and a function of greatly increasing the filling flow rate can be established corresponding to the receiving / dispatching oil skid body 32; at the same time, the fuel dispenser branch pipes 23 can be connected and conducted with at least one group of fuel dispenser gravity fueling skid mechanisms 5, and a function of slightly increasing the filling flow rate can be established corresponding to the receiving / dispatching oil skid body 32.

[0057] More specifically, the pressure gravity refueling skid mechanism 4 includes a third steel base 41, a pressure gravity refueling skid body 42 fixedly assembled on the third steel base 41, and a pressure conducting pipe 43 correspondingly assembled on the output port of the pressure gravity refueling skid body 42; the pressure conducting pipe 43 and the pressure branch pipe 22 are connected and arranged in a detachable connecting assembly via the docking flange structure 6, so as to act on the oil guide main pipeline 21 with the help of the pressure gravity refueling skid body 42, and further based on the conveying effect of the oil guide main pipeline 21, the receiving / sending oil skid body 32 is greatly improved in its filling flow rate, and the reference value can reach 1000L / min, which effectively improves the adaptability flexibility of the filling operation requirements.

[0058] The tanker gravity refueling skid mechanism 5 includes a fourth steel base 51, a tanker gravity refueling skid body 52 fixedly mounted on the fourth steel base 51, and a tanker conducting pipe 53 correspondingly mounted on the output port of the tanker gravity refueling skid body 52; the tanker conducting pipe 53 and the tanker branch pipe 23 are connected and arranged in a detachable connecting assembly via the docking flange structure 6, so as to act on the oil guide main pipeline 21 with the help of the tanker gravity refueling skid body 52, and further based on the conveying effect of the oil guide main pipeline 21, the receiving / sending oil skid body 32 slightly increases its filling flow rate, and the reference value can be selected from 50L to 70L / min, which further improves the adaptability of the filling operation requirements.

[0059] As a preferred solution of this embodiment, please continue to refer to Figure 1 The oil tank skid mechanism 1 is provided with at least two groups, and the at least two groups of the oil tank skid mechanisms 1 are arranged in parallel, and the oil tank skid oil outlet pipelines 14 of the at least two groups of the oil tank skid mechanisms 1 are connected and assembled with the inlet end of the oil guide main pipeline 21 through the docking flange structure 6, and the oil tank skid oil inlet pipelines 13 of the at least two groups of the oil tank skid mechanisms 1 are connected and assembled with the oil inlet main pipeline 8 through the docking flange structure 6, so as to significantly improve the initial oil reserve through the parallel design of the oil tank skid mechanism 1, and further effectively improve the adaptability to different filling operation requirements and the overall functional practicality.

[0060] Further preferably, the oil tank skid oil inlet pipeline 13, the oil tank skid oil outlet pipeline 14, the oil receiving / sending oil skid oil inlet pipeline 33, the pressure conduction pipeline 43 and the fuel dispenser conduction pipeline 53 are all connected and equipped with a control valve structure 7, so as to ensure the controllability of the conduction amount of each group of pipelines through the control valve structure 7, and further improve the functional adaptability to different filling operation requirements based on modular control.

[0061] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. A skid-mounted refueling device, characterized in that: include: Oil tank skid mechanism, oil pipeline structure and oil receiving / sending skid mechanism; The oil outlet port of the oil tank skid mechanism is connected and assembled in a detachable manner with the oil inlet port of the oil receiving / sending skid mechanism through the oil guide pipeline structure; The oil-conducting pipeline structure is detachably and enclosedly connected and assembled with a gravity refueling skid mechanism.

2. The skid-mounted refueling device according to claim 1, characterized in that: Also includes: Butt flange structure; The oil outlet port of the oil tank skid mechanism and the oil guide pipeline structure are detachably connected and assembled via the docking flange structure; The oil inlet port of the oil receiving / discharging skid mechanism and the oil guide pipeline structure are detachably connected and assembled via the docking flange structure; The gravity refueling skid mechanism and the oil guide pipeline structure are connected and assembled in a detachable and closed manner via the docking flange structure.

3. The skid-mounted refueling device according to claim 2, characterized in that: The oil tank skid mechanism comprises a first steel base, an oil tank skid body fixedly mounted on the first steel base, and an oil tank skid oil inlet pipe and an oil tank skid oil outlet pipe respectively connected and mounted on the oil inlet and outlet ports of the oil tank skid body in a one-to-one correspondence; The oil receiving / dispatching skid mechanism comprises a second steel base, an oil receiving / dispatching skid body and an oil receiving / dispatching skid oil inlet pipeline; the oil receiving / dispatching skid body is fixedly mounted on the second steel base, and the oil inlet port of the oil receiving / dispatching skid body is connected and mounted with the oil receiving / dispatching skid oil inlet pipeline; The oil guide pipeline structure includes an oil guide main pipeline; The inlet end of the oil guide main pipeline is connected to the oil outlet pipeline of the oil tank skid by the butt flange structure, and the outlet end of the oil guide main pipeline is connected to the oil inlet pipeline of the oil receiving / dispatching skid by the butt flange structure.

4. The skid-mounted refueling device according to claim 3, characterized in that: The gravity refueling skid mechanism comprises a pressure gravity refueling skid mechanism and / or a refueling machine gravity refueling skid mechanism which are detachably and closedly connected and assembled with the oil-conducting main pipeline.

5. The skid-mounted refueling device according to claim 4, characterized in that: The oil-conducting pipeline structure also includes a pressure branch pipeline; The pressure branch pipes are provided in several groups, one end of each group of the pressure branch pipes is connected and assembled with the oil-conducting main pipe, and the other end of each group of the pressure branch pipes is provided with a switchable closed / conducting docking flange structure.

6. The skid-mounted refueling device according to claim 5, characterized in that: The pressure gravity refueling skid mechanism comprises a third steel base, a pressure gravity refueling skid body fixedly mounted on the third steel base, and a pressure conducting pipe correspondingly connected and mounted on the output port of the pressure gravity refueling skid body; The pressure conducting pipeline and the pressure branch pipeline are connected and assembled in a detachable and closed manner via the docking flange structure.

7. The skid-mounted refueling device according to claim 6, characterized in that: The oil guide pipeline structure also includes a fuel dispenser branch pipeline; The fuel dispenser branch pipes are provided in several groups, one end of each group of fuel dispenser branch pipes are respectively connected and assembled with the oil guide main pipe, and the other end of each group of fuel dispenser branch pipes are provided with a switchable closed / conducting docking flange structure.

8. The skid-mounted refueling device according to claim 7, characterized in that: The tanker gravity refueling skid mechanism comprises a fourth steel base, a tanker gravity refueling skid body fixedly mounted on the fourth steel base, and a tanker conduction pipe correspondingly connected and mounted on the output port of the tanker gravity refueling skid body; The fuel dispenser conducting pipe and the fuel dispenser branch pipe are connected and arranged in a detachable closed connection assembly via the docking flange structure.

9. The skid-mounted refueling device according to claim 8, characterized in that: The oil inlet pipeline of the oil tank skid, the oil outlet pipeline of the oil tank skid, the oil inlet pipeline of the receiving / sending oil skid, the pressure conducting pipeline and the fuel dispenser conducting pipeline are all connected and equipped with a control valve structure.

10. The skid-mounted refueling device according to claim 3, characterized in that: The oil tank skid mechanisms are provided with at least two groups, and the at least two groups of the oil tank skid mechanisms are arranged in parallel, and the oil tank skid oil outlet pipelines of the at least two groups of the oil tank skid mechanisms are connected and assembled with the inlet end of the oil guide main pipeline through a docking flange structure, and the oil tank skid oil inlet pipelines of the at least two groups of the oil tank skid mechanisms are connected and assembled with the oil inlet main pipeline through a docking flange structure.