Aviation oil filling system and aviation oil filling device

Abstract

The invention provides an aviation oil filling system and an aviation oil filling device. The aviation oil filling system comprises a pair of oil barrels and an oil pumping system, the oil pumping system comprises a pair of oil pump assemblies, a filter separator, a flow meter, a rubber pipe reel and an oil filling gun, and the pair of oil pump assemblies are inserted into the pair of oil barrels respectively and make contact with oil in the oil barrels. The pair of oil pump assemblies is sequentially communicated with the filter separator, the flow meter, the rubber pipe reel and the oil gun to form an oil filling loop. Wherein during refueling, one oil pump assembly in the pair of oil pump assemblies is in a working state, and the other oil pump assembly is in an idle state. By arranging the pair of oil barrels, the capacity of the aviation oil filling system is increased, the aviation oil supply volume is improved, and meanwhile by arranging the pair of oil pump assemblies to work in turn, the oil supply efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aviation oil refueling, and in particular to an aviation oil refueling system and an aviation oil refueling device. BACKGROUND

[0002] With the rapid development of China's economy, the aviation industry has also developed greatly. In recent years, with the gradual opening up of the low-altitude field by the country and the encouragement of the development of general aviation in the policy, it is imminent to strengthen the oil refueling service of general aviation equipment. The current general aviation oil supply channel is limited, the equipment is single, the industry standard specification is missing, and the oil supply is not guaranteed. The existing oil supply mode and equipment rely on the oil supply of transport airports, and the oil supply of transport airports has the characteristics of large oil refueling volume and high operation frequency. However, the oil volume of general aviation oil supply is small, which cannot meet the oil volume demand of transport airports. SUMMARY

[0003] The present application provides an aviation oil refueling system and an aviation oil refueling device to solve the problem of small oil volume of existing aviation oil supply in the related art, which cannot meet the oil volume demand of transport airports.

[0004] The present application provides an aviation oil refueling system, which comprises:

[0005] a pair of oil barrels; and

[0006] a pump oil system comprising a pair of oil pump assemblies, a filter separator, a flow meter, a rubber hose reel and a refueling gun, the pair of oil pump assemblies are respectively inserted into the pair of oil barrels and in contact with the oil in the oil barrels, and the pair of oil pump assemblies are in turn communicated with the filter separator, the flow meter, the rubber hose reel and the refueling gun to form a refueling circuit; wherein during refueling, one of the pair of oil pump assemblies is in a working state, and the other oil pump assembly is in an idle state.

[0007] Further, the aviation oil refueling system further comprises a pipeline assembly, the pipeline assembly comprises a first valve assembly, a pair of first hoses and a plurality of first communication pipes, the outlets of the pair of oil pump assemblies are respectively communicated with a first inlet and a second inlet of the first valve assembly through the pair of first hoses, and the outlet of the first valve assembly is in turn communicated with the filter separator, the flow meter, the rubber hose reel and the refueling gun through the plurality of first communication pipes.

[0008] Further, the pipeline assembly further comprises a second valve assembly, a pair of second hoses and a third hose, the third hose is connected between the flow meter and an inlet of the second valve assembly, a first outlet and a second outlet of the second valve assembly are respectively communicated with inlets of the pair of second hoses, outlets of the pair of second hoses are respectively inserted into the pair of oil tanks; wherein the pair of oil pump assemblies are communicated with the filter separator, the flow meter, the third hose, the second valve assembly and the pair of second hoses in sequence and form a self-circulation loop of the oil tanks; wherein in the self-circulation, one of the pair of oil pump assemblies is in working state and the other is in idle state.

[0009] Further, the pipeline assembly further comprises a second communication pipe; the filter separator comprises an exhaust port, the exhaust port is communicated with the inlet of the second valve assembly through the second communication pipe.

[0010] Further, the pipeline assembly further comprises an exhaust valve, which is assembled on the second communication pipe.

[0011] Further, the pipeline assembly further comprises a sight gauge, which is assembled on the second communication pipe.

[0012] Further, the pipeline assembly further comprises a flame arrestor vent valve, which is assembled on the second communication pipe.

[0013] Further, the pipeline assembly further comprises a sight gauge, which comprises a 3 / 4 sight gauge.

[0014] Further, the pipeline assembly further comprises an exhaust valve, a flame arrestor vent valve and a sight gauge, the flame arrestor vent valve is located between the exhaust valve and the sight gauge, the exhaust valve is arranged close to the exhaust port, and the sight gauge is arranged close to the second valve assembly.

[0015] Further, a first end of the third hose is communicated with the first communication pipe between the flow meter and the hose reel, a second end of the third hose is communicated with the second communication pipe between the exhaust port and the inlet of the second valve assembly, and the second end of the third hose is located between the exhaust valve and the flame arrestor vent valve.

[0016] Further, the pipeline assembly further comprises a third communication pipe, the third communication pipe is communicated with the second communication pipe and the first communication pipe.

[0017] Further, the pipeline assembly further comprises a pressure gauge; a first end of the third communication pipe is communicated with the second communication pipe and is located between the exhaust valve and the second end of the third hose, and a second end of the third communication pipe is connected with the pressure gauge.

[0018] Further, the third communication pipe includes a first communication portion and a second communication portion;

[0019] The first communication portion is in communication with the first communication pipe between the first valve assembly and the filter separator, and the second communication portion is in communication with the first communication pipe between the filter separator and the flow meter;

[0020] The fueling system further includes a differential pressure gauge between the first communication portion and the second communication portion.

[0021] Further, the third hose includes a detachable hose, which is connected between the outlet of the flow meter and the inlet of the second valve assembly in use.

[0022] Further, the filter separator further includes a drain port at the bottom of the filter separator, and the pipe assembly further includes a joint through which the drain port is connected to an external pipeline.

[0023] Further, the third hose includes a 3 / 4 inch hose.

[0024] Further, the second hose includes a 3 / 4 inch hose.

[0025] Further, the first hose includes a 1 / 4 inch hose.

[0026] Further, the second valve assembly includes a three-way valve.

[0027] Further, the first valve assembly includes a three-way valve.

[0028] Further, the hose reel includes a 1 inch hose reel.

[0029] Further, the fueling gun includes a gravity fueling gun.

[0030] Further, the oil pump assembly is an explosion-proof oil pump assembly.

[0031] The present application provides a fueling device, which includes a tray device and the above fueling system, and the fueling system is assembled to the tray device.

[0032] Further, the fueling device further includes a moving device detachably connected to the tray device, and when the moving device is connected to the tray device, the moving device drives the tray device and the fueling system on the tray device to move.

[0033] The aviation oil filling system and the aviation oil filling device provided by the application include a pair of oil tanks and a pump oil system, wherein the pump oil system includes a pair of oil pump assemblies respectively inserted into the pair of oil tanks and in contact with oil in the oil tanks; during oil filling, one of the pair of oil pump assemblies is in a working state and the other is in an idle state. By arranging the pair of oil tanks, the capacity of the aviation oil filling system is increased, and the aviation oil supply volume is improved; by arranging the pair of oil pump assemblies to work alternately, the oil supply efficiency is improved, the oil supply is prevented from being suspended due to the reduction of oil quantity, and the oil supply is prevented from being unable to be realized when one of the oil pump assemblies fails.

[0034] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory and are not restrictive of the application. BRIEF DESCRIPTION OF DRAWINGS

[0035] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and serve to explain the principles of the application, together with the description.

[0036] Figure 1 Fig. 1 shows a structure schematic view of the aviation oil filling device from one perspective of an exemplary embodiment of the application;

[0037] Figure 2 Fig. 2 shows a structure schematic view of the aviation oil filling device from another perspective; Figure 1 Fig. 3 shows a structure schematic view of the aviation oil filling device from another perspective;

[0038] Figure 3 Fig. 4 shows a structure schematic view of the aviation oil filling device from another perspective; Figure 1 Fig. 5 shows a structure schematic view of the aviation oil filling device from a front perspective;

[0039] Figure 4 Fig. 6 shows a structure schematic view of the aviation oil filling device from a side perspective; Figure 1 Fig. 7 shows a structure schematic view of the aviation oil filling device from a top perspective;

[0040] Figure 5 Fig. 8 shows a structure schematic view of the aviation oil filling device from a bottom perspective; Figure 1 Fig. 9 shows a structure schematic view of the aviation oil filling device from a bottom perspective;

[0041] Figure 6 Fig. 10 shows a structure schematic view of the tray device of the aviation oil filling device; Figure 1 Fig. 11 shows a structure schematic view of the moving device of the aviation oil filling device;

[0042] Figure 7 Fig. 12 shows a structure schematic view of the traction vehicle of the aviation oil filling device; Figure 1 Fig. 13 shows a structure schematic view of the traction vehicle of the aviation oil filling device;

[0043] Figure 8 Fig. 14 shows a structure schematic view of the traction vehicle of the aviation oil filling device; Figure 1 Fig. 15 shows a structure schematic view of the traction vehicle of the aviation oil filling device;

[0044] Figure 9 shown is Figure 1 structure diagram of another embodiment of tray device of the aviation fuel filling device shown;

[0045] Figure 10 shown is the operation system diagram of the fuel filling circuit of the aviation fuel filling system of the present application;

[0046] Figure 11 shown is Figure 10 shown is the operation system diagram of the self-circulation circuit of the aviation fuel filling system. DETAILED DESCRIPTION

[0047] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The description of the exemplary embodiments is intended to apply to various alternative embodiments as well. It is to be understood that the description of any exemplary embodiment is intended only to be used to assist in understanding the exemplary embodiments. Therefore, the exemplary embodiments are not to be used to limit or define the scope of the application.

[0048] The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. Unless otherwise defined, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The use of the terms "first", "second" and "third" and similar terms in the description and claims is not intended to denote a physical order or priority, but to distinguish between different elements. The use of the terms "a" and "an" and "the" and similar referents in the context of describing the specification (especially in the context of claims) are to be construed to cover both the singular and the plural, unless otherwise indicated. "Multiple" or "a plurality" means two or more. Unless otherwise indicated, the terms "front", "back", "up", "down", and the like in the description and in the claims are used for convenience and are not intended to denote a particular position or spatial orientation. The use of the terms "including", "containing", and similar terms in the description and claims is intended to mean that the elements listed after the term are included, but not to the exclusion of other elements. The use of the terms "connected" and "coupled" and similar terms in the description and claims is intended to mean an indirect or direct connection or coupling, and can include electrical connections or couplings, whether direct or indirect.

[0049] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting thereof. As used in this application and the appended claims, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term "and / or," as used herein, refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0050] The application provides a kind of aviation oil filling system, including a pair of oil tank and pumping system, wherein pumping system includes a pair of oil pump assembly, filter separator, flowmeter, hose reel and oil gun, the pair of oil pump assembly is inserted into the pair of oil tank respectively, contact with oil product in the oil tank, and the pair of oil pump assembly is sequentially communicated with the filter separator, the flowmeter, the hose reel and the oil gun and forms oil filling loop;Wherein during oil filling, one of the pair of oil pump assembly the oil pump assembly is in working state, another oil pump assembly is in idle state.By setting a pair of oil tank, the capacity of aviation oil filling system is increased, the aviation oil supply volume is improved, at the same time by setting a pair of oil pump assembly alternately working, it is beneficial to improve the oil supply efficiency, effectively prevent the oil supply from being suspended due to the reduction of oil amount, and also avoid that one of the oil pump assembly fails, and oil supply cannot be realized.

[0051] The application provides an aviation oil filling system and an aviation oil filling device. The aviation oil filling system and the aviation oil filling device of the application will be described in detail below with reference to the accompanying drawings. The features in the following embodiments and implementation manners can be combined with each other without conflict.

[0052] The aviation oil filling device 200 can be a barrel type navigation mobile oil filling device. In this embodiment, the barrel type navigation mobile oil filling device can be an aviation gasoline filling device, which is suitable for the operation scene with small single oil filling amount in navigation oil supply guarantee, and is used for configuring aviation gasoline tank to fill aviation gasoline. Aviation gasoline is also called aviation gasoline, which will be described below as an example.

[0053] Figure 1 Fig. 1 shows a structure schematic diagram of one perspective view of the aviation oil filling device of the application. Figure 2 Fig. 2 shows a structure schematic diagram of another perspective view of the aviation oil filling device. Figure 1 Fig. 3 shows a structure schematic diagram of another perspective view of the aviation oil filling device. Figure 3 Fig. 4 shows a structure schematic diagram of another perspective view of the aviation oil filling device. Figure 1 Fig. 5 shows a structure schematic diagram of front view of the aviation oil filling device. Figure 4 Fig. 6 shows a structure schematic diagram of front view of the aviation oil filling device. Figure 1 Fig. 7 shows a structure schematic diagram of rear view of the aviation oil filling device. Figure 5 Fig. 8 shows a structure schematic diagram of rear view of the aviation oil filling device. Figure 1 Fig. 9 shows a structure schematic diagram of top view of the aviation oil filling device. Combined with Figures 1-5As shown, the refueling device 200 comprises a refueling system 320 and a tray device 202. The refueling system 320 is used for oil storage and refueling. The refueling system 320 comprises a pair of oil tanks 201 and a pumping system 203. The pumping system 203 and the pair of oil tanks 201 are assembled on the tray device 202. The pumping system 203 and the pair of oil tanks 201 are assembled on the surface of the tray device 202, and the tray device 202 is used to carry the pumping system 203 and the pair of oil tanks 201. The pumping system 203 cooperates with the pair of oil tanks 201 to perform operations such as oil filling or external oil supply.

[0054] In Figure 1 In the embodiment shown, the pumping system 203 comprises a pair of oil pump assemblies 204, a filter separator 205, a flow meter 206, and an oil outlet assembly 207. The oil outlet assembly 207 comprises a hose reel 213 and a refueling gun 214, and the filter separator 205 communicates with the refueling gun 214 through the hose reel 213. The pair of oil pump assemblies 204 are respectively inserted into the pair of oil tanks 201 to contact the oil in the oil tanks 201, and the pair of oil pump assemblies 204 are sequentially communicated with the filter separator 205, the flow meter 206, the hose reel 213, and the refueling gun 214 to form a refueling circuit. The refueling circuit is used to transport oil and supply oil to the outside. During refueling, one of the pair of oil pump assemblies 204 is in a working state, and the other is in an idle state. The pumping system 203 cooperates with the oil tanks 201 to extract oil from the oil tanks 201 and supply oil to the outside. The pair of oil pump assemblies 204 are respectively placed in the pair of oil tanks 201, so that each oil tank 201 is matched with an oil pump assembly 204, facilitating individual pumping of each oil tank 201 and preventing failure of one of the oil tanks 201 or the oil pump assemblies 204.

[0055] In Figure 1 In the embodiment shown, the tray device 202 extends in a first direction L1 and a second direction L2, and the pair of oil tanks 201 are distributed in the first direction L1 and located on the same side of the tray device 202, wherein the first direction L1 and the second direction L2 are arranged in the same plane and intersect each other. In this embodiment, the first direction and the second direction are arranged in the same plane and perpendicular to each other. Since the pair of oil pump assemblies 204 share the same pipeline, distributing the pair of oil tanks 201 in the first direction L1 facilitates connection of the pair of oil pump assemblies 204 to the same pipeline, makes the connected pipeline compact, and makes the layout reasonable, thereby reducing the overall size of the device.

[0056] Figure 6 As shown Figure 1 As shown, the tray device 202 of the refueling device 200 is shown in a structure schematic view. In Figure 6In the embodiment shown, the tray device 202 comprises a tray body 208 and a handrail 209 protruding from the tray body 208. The handrail 209 is used as an auxiliary pulling or pushing member to assist the movement of the tray body 208. The tray body 208 is used to carry a pair of oil drums 201 and a pumping system 203. The tray body 208 is made of stainless steel, which has high tensile strength, stable welding, excellent mechanical properties, and low cost. The tray body 208 comprises a first side 302 and a second side 303 arranged opposite to each other in a first direction L1, and a third side 304 and a fourth side 305 arranged opposite to each other in a second direction L2. In this embodiment, the tray body 208 is rectangular in structure, the first side 302 and the second side 303 can be the short sides of the tray body 208, and the third side 304 and the fourth side 305 can be the long sides of the tray body 208. The first direction is the long side direction of the tray body 208, and the second direction can be the short side direction of the tray body 208. The handrail 209 is arranged on the first side 302. The handrail is arranged in the short side direction of the tray body 208, which facilitates pulling or turning the tray body 208.

[0057] In Figure 1 and Figure 2 In the embodiment shown, the pair of oil drums 201, the filter separator 205, the flow meter 206, and the oil outlet assembly 207 are arranged in the second direction L2, the filter separator 205 is located between the pair of oil drums 201 in the first direction L1, and is located between the pair of oil drums 201 and the oil outlet assembly 207 in the second direction L2. By arranging the filter separator 205, the flow meter 206, and the oil outlet assembly 207 in the second direction L2, the filter separator 205 is located between the pair of oil drums 201 in the first direction L1, effectively utilizing the space distribution, making the layout reasonable and compact, reducing the volume of the entire device, and making the operation flexible and easy. Thus, the pumping system 203 facilitates the filtering of impurities in the oil by the filter separator 205.

[0058] In Figures 3-5 In the embodiment shown, the hose reel 213 and the oil gun 214 are arranged opposite to the pair of oil drums 201, close to the fourth side 305 relative to the filter separator 205, and the oil gun is arranged towards the first side 302. Arranging the hose reel 213 and the oil gun 214 opposite to the pair of oil drums 201 facilitates the replacement of the oil drums 201 and the refueling. The oil gun 214 is arranged towards the first side 302. In this way, the staff can conveniently store and take the oil gun 214.

[0059] In Figures 1-2In the shown embodiment, the bottom of the filter separator 205 is connected with an oil return pipe 215, which is used to discharge the impurities inside the filter separator 205. The oil return pipe 215 extends in the first direction L1 and is arranged towards the first side 302, which facilitates the connection of external pipelines to the oil return pipe 215 and facilitates the operation.

[0060] In the present embodiment, the oil pump assembly 204 comprises an explosion-proof oil pump assembly. The aviation oil is a dangerous fuel. By arranging the explosion-proof oil pump assembly, the safety of the aviation oil refueling is improved. In the present embodiment, the hose reel 213 comprises a 1-inch hose reel. The 1-inch hose reel ensures the supply of oil products, has a small size, is convenient to store and saves space, has a low cost, and is quite practical. In the present embodiment, the above-mentioned refueling gun comprises a gravity refueling gun. By using the gravity refueling gun, the safety and efficiency of the aviation oil refueling are improved. The oil pump assembly 204 pumps the fuel in the oil drum 201 out, and the fuel enters the filter separator 205 for filtration. The clean oil filtered of impurities is sequentially conveyed to the refueling gun through the flow meter 206 and the hose reel 213 to complete the refueling operation. When the aviation oil flows through the filter separator 205, solid particles and impurities in the aviation oil are filtered out by the filter element, and water is separated from the aviation oil. The water at the bottom of the filter separator 205 can be manually discharged. The filter separator 205 meets the filtration accuracy of 5 μm or meets the requirements of GB / T 21358-2008 "General Technical Specification for Filter Separator 205 for Jet Fuel". Before each use of the oil pumping system 203, the filter separator 205 must be checked to ensure safety. The flow meter 206 is used to record and display the flow of the aviation oil added. The measurement accuracy of the flow meter 206 is ±0.2%, which is relatively accurate. The hose reel 213 is connected with the flow meter 206 and the refueling gun, and can be used to adjust the distance of the refueling position of the refueling gun 214. This is advantageous for saving the occupied space of the pipeline required for the aviation oil delivery and for compact structure.

[0061] In Figures 1-5 In the shown embodiment, the oil pumping system 203 further comprises an operation panel. The operation panel is arranged on the tray device 202 and extends along the first direction L1. The operation panel is used to integrate the devices required to be operated by the operator, and has a high integration degree. The operation panel is provided with trigger cases for operating the oil supply and stopping the oil supply, and the operation panel can also be used to display the amount of oil. The operation panel and the oil outlet assembly 207 are distributed in the second direction L2, and the operation panel is arranged towards the fourth side 305 relative to the oil outlet assembly 207. Arranging the operation panel towards the fourth side 305 is advantageous for improving the convenience of the operation of the operator, making the structure layout compact, and facilitating observation during use. In Figures 1-5In the illustrated embodiment, the fuel pumping system 203 further includes an electrostatic reel 221, distributed along the first direction L1 with the fuel dispensing assembly 207, and positioned on the second side 303 relative to the fuel dispensing assembly 207. The electrostatic reel 221 is used to store the electrostatic discharge wire, which is used to release static electricity, ensuring the safety of the device and reducing static electricity in the aviation fuel refueling system, thereby reducing safety hazards during the aviation fuel refueling process. Figures 1-5 In the illustrated embodiment, the oil pumping system 203 further includes a storage box 222, protruding from the surface of the tray body 208. The storage box 222 and the operation panel are distributed in the first direction L1, with the storage box 222 positioned closer to the second side 303 relative to the operation panel. The storage box 222 and one of the oil drums 201 are distributed in the second direction L2, with the storage box 222 positioned closer to the fourth side 305 relative to the oil drum 201. Positioning the storage box 222 closer to the fourth side 305 facilitates the retrieval of tools from the storage box 222. Figures 1-5 In the illustrated embodiment, the oil pumping system 203 further includes a storage box 222, a cable reel 223, and an electrostatic reel 221. The cable reel 223 is positioned above the storage box 222, and the electrostatic reel 221 is located between the oil outlet assembly 207 and the cable reel. The storage box 222 and the cable reel 223 are used to store the cables of the power supply device required by the oil pumping system 203, which helps improve the neatness of the device and enhances its safety during use. Furthermore, positioning the cable reel 223 above the storage box 222 and the electrostatic reel 221 between the oil outlet assembly 207 and the cable reel results in a more compact device structure and saves space. Figures 1-5 In the illustrated embodiment, the oil pumping system 203 further includes a fire extinguishing box 224 for storing fire extinguishers. The fire extinguishing box 224 is located between a pair of oil drums 201 in the first direction L1, and is distributed with the filter separator 205 in the second direction L2, and is positioned closer to the third side 304 relative to the filter separator 205. The fire extinguishing box 224 is located between a pair of oil drums 201 in the first direction L1, which facilitates easy access for fire extinguishing in case of an emergency, effectively utilizes the space between the pair of oil drums 201, and saves device space.

[0062] Figure 6 As shown Figure 1 The diagram shows the structural structure of the tray assembly of the aviation fuel refueling device. Figure 6In the shown embodiment, in order to better bear and move the pump oil system 203, the bottom of the tray device 202 is provided with a pair of first rollers 262 located at the first side 302, and a pair of second rollers 264 located at the second side 303, the pair of first rollers 262 is located at the same side of the tray body 208 as the handrail 209 in the first direction L1, and the pair of first rollers 262 is provided with a brake 263. During operation, the operator moves the tray body 208 by pushing the handrail 209 to perform oiling work. By setting the rollers, the efficiency of the tray device 202 transportation is improved, and it is beneficial to save the labor cost of aviation oil refueling. By setting the brake 263 on the first roller 262, the tray device 202 can also brake in time during movement, improve the control of the tray device 202 by the operator, and improve the safety of aviation oil refueling. In this embodiment, the first roller 262 and the second roller 264 are both selected as 10-inch super heavy-duty solid rubber wheels. The solid tire can reduce rolling resistance and absorb and reduce various swings, vibrations and bumps during driving. At the same time, compared with vacuum tires or other ordinary inflatable tires, the tire diameter size is smaller, the tray device 202 height is lower; the single wheel load can reach more than 600 kg, the load coefficient is higher, and the chassis bearing safety margin is larger.

[0063] In Figure 6 In the shown embodiment, the tray body 208 is downwardly recessed to be provided with a plurality of oil grooves 225. The plurality of oil grooves 225 is used to bear the aviation oil overflowed from the oil drum, which is beneficial to realize the recycling use of aviation oil and reduce waste. The bottom of the tray body 208 is further provided with a drain valve in communication with the oil groove 225, the drain valve is arranged towards the first side 302 and located at the lowest point of the oil groove 225. The oil collected by the oil groove 225 is discharged from the tray body 208 through the drain valve, and the lowest point is arranged to facilitate the discharge. The plurality of oil grooves 225 is arranged to be downwardly inclined from the second side 303 to the first side 302. The plurality of oil grooves 225 is arranged to be downwardly inclined, which facilitates the oil grooves 225 to converge the sediments to one side of the handrail, and facilitates the collection of waste oil.

[0064] In Figure 6In the shown embodiment, the surface of the tray body 208 is further provided with a positioning assembly, which comprises a plurality of anti-toppling columns 227 in the shape of columns and a positioning ring 226 on the top of the plurality of anti-toppling columns 227. The oil drum 201 is placed in the area enclosed by the positioning ring 226 and the plurality of anti-toppling columns 227. The oil drum 201 is prevented from toppling by being placed in the area enclosed by the positioning ring 226 and the plurality of anti-toppling columns 227. In some embodiments, the tray device 202 comprises a stainless steel plate. In some embodiments, the plurality of anti-toppling columns 227 are welded to the upper surface of the tray body 208. In other embodiments, the surface of the positioning ring 226 is covered with a protective layer, and the material of the protective layer is Teflon. The Teflon material can effectively reduce static electricity generated when the oil drum 201 and the positioning ring 226 are positioned, which is conducive to improving the safety of the fueling operation.

[0065] Figure 7 As shown Figure 1 The structure of the moving device of the shown fueling device is shown. In Figure 7 In the shown embodiment, in order to facilitate the movement of the tray body 208, the fueling device 200 further comprises a moving device 228, which is detachably connected with the tray device 202. When the moving device 228 and the tray device 202 are connected, the moving device 228 drives the tray device 202 and the oil pumping system 203 above the tray device 202 to move. The moving device 228 can be used to provide power to the tray device 202 and the fueling device 200, which facilitates the movement of the oil drum 201. The detachable arrangement of the moving device 228 and the tray device 202 facilitates the separation of the fueling system 320, the tray device 202 and the moving device 228 for manual movement and fueling, which is conducive to improving the flexibility of fueling. The installation and connection of the moving device 228 and the tray device 202 enable the moving device 228 to drive the tray device 202 to move, so as to move the fueling system above the tray device 202, which facilitates the movement of the fueling system and improves the convenience of fueling for aviation operations.

[0066] In Figure 6 and Figure 7In the shown embodiment, the moving device 228 comprises a head 229 and a fork 230 extending from the head 229 in a first direction L1, and the bottom of the tray device 202 is provided with a plurality of guide grooves 231 matched with the fork 230. The moving device 228 is connected with the tray device 202 through the cooperation of the fork 230 and the plurality of guide grooves 231. The cooperation of the fork 230 and the plurality of guide grooves 231 makes the tray device 202 relatively fixed with the moving device 228, facilitating the oil drum 201 to perform the oil filling operation. In use, the fork 230 can be inserted into the guide groove 231 to support and suspend the entire tray device 202 for carrying work. In some embodiments, the plurality of guide grooves 231 are arranged in alignment in the first direction L1. In other embodiments, the plurality of guide grooves 231 are arranged in alignment in a second direction L2. In the present embodiment, the plurality of guide grooves 231 are arranged in alignment in the first direction L1. In this way, the fork 230 can be arranged in alignment. In other embodiments, the plurality of guide grooves 231 have a distance from the ground, avoiding the guide grooves 231 from being too close to the ground to cause wear, resulting in poor cooperation of the guide grooves 231 and the fork 230, and causing safety hazards.

[0067] In some embodiments, the tray device 202 is provided with a plurality of locking rings 232 on both sides; the moving device 228 is provided with locking rods 270 corresponding to the plurality of locking rings 232, and the locking rods 270 are vertically inserted into the locking rings 232 to connect the moving device 228 with the tray device 202. After the cooperation of the locking rods 270 and the locking rings 232, the moving device 228 can be prevented from falling off the tray device 202 during carrying, further improving the stability of the assembled tray device 202 and moving device 228. In the present embodiment, the moving device 228 comprises an explosion-proof moving device 228. In the present embodiment, the moving device 228 is provided with a battery, which can be used to power the oil pumping system 203. By providing the explosion-proof moving device 228, the safety factor of the aviation oil filling device 200 during operation can be improved.

[0068] Figure 8 The structure of the tractor of the shown aviation oil filling device is shown. In the shown embodiment, the moving device 228 comprises a head 229 and a fork 230 extending from the head 229 in a first direction L1, and the bottom of the tray device 202 is provided with a plurality of guide grooves 231 matched with the fork 230. The moving device 228 is connected with the tray device 202 through the cooperation of the fork 230 and the plurality of guide grooves 231. The cooperation of the fork 230 and the plurality of guide grooves 231 makes the tray device 202 relatively fixed with the moving device 228, facilitating the oil drum 201 to perform the oil filling operation. In use, the fork 230 can be inserted into the guide groove 231 to support and suspend the entire tray device 202 for carrying work. In some embodiments, the plurality of guide grooves 231 are arranged in alignment in the first direction L1. In other embodiments, the plurality of guide grooves 231 are arranged in alignment in a second direction L2. In the present embodiment, the plurality of guide grooves 231 are arranged in alignment in the first direction L1. In this way, the fork 230 can be arranged in alignment. In other embodiments, the plurality of guide grooves 231 have a distance from the ground, avoiding the guide grooves 231 from being too close to the ground to cause wear, resulting in poor cooperation of the guide grooves 231 and the fork 230, and causing safety hazards. Figure 1 The structure of the tractor of the shown aviation oil filling device is shown. In the shown embodiment, the moving device 228 comprises a head 229 and a fork 230 extending from the head 229 in a first direction L1, and the bottom of the tray device 202 is provided with a plurality of guide grooves 231 matched with the fork 230. The moving device 228 is connected with the tray device 202 through the cooperation of the fork 230 and the plurality of guide grooves 231. The cooperation of the fork 230 and the plurality of guide grooves 231 makes the tray device 202 relatively fixed with the moving device 228, facilitating the oil drum 201 to perform the oil filling operation. In use, the fork 230 can be inserted into the guide groove 231 to support and suspend the entire tray device 202 for carrying work. In some embodiments, the plurality of guide grooves 231 are arranged in alignment in the first direction L1. In other embodiments, the plurality of guide grooves 231 are arranged in alignment in a second direction L2. In the present embodiment, the plurality of guide grooves 231 are arranged in alignment in the first direction L1. In this way, the fork 230 can be arranged in alignment. In other embodiments, the plurality of guide grooves 231 have a distance from the ground, avoiding the guide grooves 231 from being too close to the ground to cause wear, resulting in poor cooperation of the guide grooves 231 and the fork 230, and causing safety hazards. Figure 8In the shown embodiment, the fuel filling device 200 further comprises a towing vehicle 400, which is detachably connected with the tray device 202. When the towing vehicle 400 is connected with the tray device 202, the towing vehicle 400 drives the tray device 202 and the fuel pumping system 203 above the tray device 202 to move. The towing vehicle 400 can be used to provide power for the tray device 202 and the fuel filling device 200, so as to facilitate the movement of the fuel drum 201. The detachable arrangement of the towing vehicle 400 and the tray device 202 facilitates the separation of the fuel filling system 320, the tray device 202 and the towing vehicle 400 for manual movement and fuel filling, which is beneficial to improve the flexibility of fuel filling. The installation and connection of the towing vehicle 400 and the tray device 202 enable the towing vehicle 400 to drive the tray device 202 to move, so as to move the fuel filling system above the tray device 202, which facilitates the movement of the fuel filling system and is beneficial to improve the convenience of fuel filling for aviation operation.

[0069] In some embodiments, the towing vehicle 400 comprises a vehicle body 401 and a towing hook 402 arranged at the tail of the vehicle body 401. Figure 9 As shown in Figure 1 As shown in the structural schematic view of another embodiment of the tray device of the fuel filling device, in Figure 9 In the shown embodiment, the tray device 202 is provided with a towing ring 403 at one end away from the handrail 209 in the first direction L1. The towing hook 402 can be arranged in a locked or detached manner relative to the towing vehicle 400. When the towing hook 402 is detached, the towing ring 403 is put into the towing hook 402. When the towing hook 402 is locked, the towing ring 403 is fixed relative to the towing hook 402, so that the tray device 202 is fixed relative to the towing vehicle 400, and the towing vehicle 400 drives the tray device 202 to move.

[0070] In Figure 1 and Figure 4 In the shown embodiment, the fuel pumping system 203 further comprises an electrical connector 301 arranged above the cable reel 223 and the storage box 222, which is used to connect the power supply. In this embodiment, the electrical connector 301 adopts a direct-current-to-alternating-current output design, which improves the safety performance of power supply while supplying power to the fuel pumping system 203. In this embodiment, the electrical connector 301 is connected with an inverter, which can stably output single-phase 220V voltage from the power supply end. The fuel filling device pulls the cable to be connected to the power supply port of the above-mentioned explosion-proof mobile device 228 through the cable reel 223. The explosion-proof mobile device 228 delivers current to the cable reel 223 in the fuel pumping system 203, and the cable reel 223 delivers current to other working components of the fuel pumping system 203 for fuel filling operation.

[0071] Figure 10An operational system diagram of the fueling circuit of the refueling system 320 of the present application is shown. Figure 11 An operational system diagram of the fueling circuit of the refueling system 320 of the present application is shown. Figure 10 An operational system diagram of the fueling circuit of the refueling system 320 of the present application is shown. Figures 10-11 In the embodiment shown, the refueling system 320 further comprises a pipeline assembly including a first valve assembly 210, a pair of first hoses 211, and a plurality of first communication pipes 212, the outlets of the pair of oil pump assemblies 204 are respectively communicated with the first inlet and the second inlet of the first valve assembly 210 through the pair of first hoses 211, and the outlet of the first valve assembly 210 is sequentially communicated with the filter separator 205, the flow meter 206, the hose reel 213, and the fueling gun 214 through the plurality of first communication pipes 212. The pipeline assembly is used to connect the oil pumping assembly and the oil tank 201, so that the aviation fuel in the oil tank 201 can smoothly enter the aircraft to complete the fueling operation. In some embodiments, the first valve assembly 210 is located between the pair of oil tanks 201 in the first direction L1, the first communication pipes 212 extend from the third side 304 to the fourth side 305 in the second direction L2, and the first valve assembly 210, the first communication pipes 212, and the filter separator 205 are distributed in the first direction L1. By arranging the first valve assembly 210 between the pair of oil tanks 201, the path of the aviation fuel in the oil tank 201 when pumped out can be reduced, and the pumping efficiency can be improved.

[0072] In some embodiments, the first valve assembly 210 adopts a three-way valve, and by arranging the first inlet and the second inlet to be respectively communicated with the pair of first hoses 211, the aviation fuel in the pair of oil tanks 201 can enter the first valve assembly 210 from the first inlet and the second inlet respectively, so that the first valve assembly 210 can control the opening and closing of the first inlet and the second inlet, and the control of the delivery and closing of the aviation fuel in the pair of oil tanks 201 can be realized. In some embodiments, the first hose 211 includes a 1 / 4 inch hose. The outlet of the first valve assembly 210 is sequentially connected with the filter separator 205 through the first communication pipe 212, so that the aviation fuel entering from the first inlet or the second inlet can enter the filter separator 205 for filtration, effectively preventing oil leakage, and facilitating the centralized delivery of the aviation fuel in the pipeline.

[0073] In some embodiments, the pipeline assembly further comprises a second valve assembly 300, a pair of second hoses 218, and a third hose 236, the third hose 236 being connected between the flow meter 206 and the inlet of the second valve assembly, the first outlet and the second outlet of the second valve assembly being respectively communicated with the inlets of the pair of second hoses 218, the outlets of the pair of second hoses 218 being respectively inserted into the pair of oil tanks 201; wherein the pair of oil pump assemblies 204 are sequentially communicated with the filter separator 205, the flow meter 206, the third hose 236, the second valve assembly, and the pair of second hoses 218, and form a self-circulation loop of the oil tank 201; wherein in the self-circulation, one of the pair of oil pump assemblies 204 is in the working state, and the other is in the idle state.

[0074] The pipeline assembly can also provide a circulation pipeline for the aviation oil self-circulation to realize the self-circulation of the aviation oil. In some embodiments, the second valve assembly also adopts a three-way valve, by setting the first outlet and the second outlet to be respectively communicated with the pair of second hoses 218, the aviation oil after the self-circulation in the pipeline can flow into one of the pair of oil tanks 201 from any one of the pair of second hoses 218 through the first outlet or the second outlet, and the self-circulation of the aviation oil is completed. The third hose 236 connects the flow meter 206 to the inlet of the second valve assembly 300, so that the aviation oil in the self-circulation process passes through the flow meter 206 and then returns to the oil tank 201 through the second valve assembly.

[0075] In some embodiments, the pump oil system 203 comprises an exhaust pipe 217. The pair of second hoses 218 are communicated with the pair of oil tanks 201, and sequentially communicated with the second valve assembly 300, the exhaust pipe 217, and the exhaust port of the filter separator 205; wherein the second valve assembly is arranged above the first valve assembly 210, between the pair of oil tanks 201 in the first direction L1, the exhaust pipe 217 extends from the third side 304 to the fourth side 305 in the second direction L2, and the second valve assembly, the exhaust pipe 217, and the filter separator 205 are distributed in the first direction L1.

[0076] In some embodiments, the second hose 218 comprises a 3 / 4 inch hose, and the third hose 236 also comprises a 3 / 4 inch hose. In some embodiments, the third hose 236 comprises a detachable hose, and the third hose 236 is detachably assembled between the second communication pipe and the exhaust pipe 217. In use, the third hose 236 is connected between the outlet of the flow meter 206 and the inlet of the second valve assembly 300. By setting the third hose 236 as a detachable hose, it is convenient to detach and replace or clean the third hose 236, and it is convenient to maintain the hose.

[0077] In some embodiments, the filter separator 205 further comprises a liquid discharge port 310 located at the bottom of the filter separator 205; the pipeline assembly further comprises a joint through which the liquid discharge port 310 is connected to an external pipeline. By providing the liquid discharge port 310, the filter separator 205 can discharge the impurities filtered out of the inside to the aviation fuel filling system 320. Meanwhile, by providing the joint connected to the liquid discharge port 310, the impurities to be discharged can be uniformly discharged, preventing overflow.

[0078] In some embodiments, the pipeline assembly further comprises a second communication pipe 216; the filter separator 205 comprises an air discharge port 311 which is in communication with the inlet of the second valve assembly 300 through the second communication pipe 216. The filter separator 205 is connected to the fuel filler through the second communication pipe 216; wherein the second communication pipe extends in the first direction L1 and is located between the filter separator 205 and the oil outlet assembly 207 in the second direction L2. By installing the second communication pipe 216, the aviation fuel filtered by the filter separator 205 can be directly returned to the second valve assembly 300, quickly realizing self-circulation of the aviation fuel. In some embodiments, the second communication pipe 216 is detachably installed between the filter separator 205 and the second valve assembly 300, which is conducive to realizing the quick self-circulation of the aviation fuel. By arranging the second communication pipe 216 to extend in the first direction L1 and be located between the filter separator 205 and the oil outlet assembly 207 in the second direction L2, the aviation fuel can smoothly flow in the second communication pipe 216, improving the fuel supply efficiency.

[0079] In some embodiments, the aviation fuel filling system 320 further comprises an air discharge valve 312 assembled on the second communication pipe 216, and the air discharge valve 312 is arranged close to the air discharge port 311 of the filter separator 205. The air discharge valve 312 can discharge the gas inside the aviation fuel filling system 320, which is conducive to maintaining the air pressure balance inside the aviation fuel filling system 320 and improving the safety of the operation of the aviation fuel filling system 320.

[0080] In some embodiments, the aviation fuel filling system 320 further comprises a sight glass 219 assembled on the second communication pipe 216, and the sight glass 219 is arranged close to the second valve assembly, and the sight glass 219 is assembled on the top of the filter separator 205. In some embodiments, the sight glass 219 comprises a 3 / 4 sight glass 219. By installing the sight glass 219, the operating personnel can observe the oil product in the self-circulation of the aviation fuel, and the use of the 3 / 4 sight glass 219 is more conducive to improving the efficiency of oil product inspection, and the 3 / 4 sight glass 219 has higher universality and lower cost.

[0081] The aviation fuel filling system 320 further comprises a flame arrest vent valve 220 assembled on the second communication pipe 216 and located between the exhaust valve 312 and the sight glass 219. By installing the flame arrest vent valve 220, the possibility of aviation fuel accidents in the exhaust valve 312 and the sight glass 219 is reduced, and the working safety of the aviation fuel filling system 320 is improved.

[0082] In some embodiments, a first end of the third hose 236 communicates with the first communication pipe 212 located between the flowmeter 206 and the hose reel 213, a second end of the third hose 236 communicates with the second communication pipe 216 located between the exhaust port 311 and the inlet of the second valve assembly, and the second end of the third hose 236 is located between the exhaust valve 312 and the flame arrest vent valve 220. By arranging the third hose 236, the aviation fuel flowing through the flowmeter 206 is returned into the oil tank 201 in sequence through the first communication pipe 212, the third hose 236 and the second communication pipe 216, realizing self-circulation of the aviation fuel.

[0083] In some embodiments, the pipeline assembly further comprises a third communication pipe 315 communicating with the second communication pipe 216 and the first communication pipe 212. By arranging the third communication pipe 315, the air pressure inside the first communication pipe 212 and the second communication pipe 216 is adjusted, playing a certain pressure stabilizing role.

[0084] In some embodiments, the aviation fuel filling system 320 further comprises a pressure gauge 261, a first end of the third communication pipe 315 communicates with the second communication pipe 216 and is located between the exhaust valve 312 and the second end of the third hose 236, and a second end of the third communication pipe 315 is connected with the pressure gauge 261. The pressure gauge 261 can be used to observe the oil pressure inside the third communication pipe 315, and at the same time, the working state of the oil pump assembly 204 can be judged according to the pressure change, so as to obtain safety information of the aviation fuel and improve the stability of the aviation fuel filling system 320.

[0085] In some embodiments, the third communication pipe 315 comprises a first communication part 234 and a second communication part 235. The first communication part 234 communicates with the first communication pipe 212 located between the first valve assembly 210 and the filter separator 205, and the second communication part 235 communicates with the first communication pipe 212 located between the filter separator 205 and the flowmeter 206. The aviation fuel filling system 320 further comprises a differential pressure gauge 260 located between the first communication part 234 and the second communication part 235, and the differential pressure gauge 260 is used to display the pressure difference between the inlet and the outlet of the filter separator 205, so as to facilitate the operator to judge the replacement period of the filter separator 205 and improve the safety of the aviation fuel filling system 320. By dividing the third communication pipe 315 into the first communication part 234 and the second communication part 235, the air pressure inside the communication pipe is stabilized.

[0086] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0087] It is to be understood that the application is not limited to the precise construction herein described and as shown in the attached drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application is limited only by the claims that follow.

Claims

1. A fuel oil filling system, characterized in that The aviation fuel filling system comprises: a pair of oil tanks; and a pump oil system, comprising a pair of oil pump assemblies, a filter separator, a flow meter, a hose reel and a fuel gun, the pair of oil pump assemblies are respectively inserted into the pair of oil tanks and in contact with oil in the oil tanks, and the pair of oil pump assemblies are in turn communicated with the filter separator, the flow meter, the hose reel and the fuel gun and form a fuel filling circuit; wherein during fuel filling, one of the pair of oil pump assemblies is in working state and the other is in idle state.

2. The fuel oil filling system according to claim 1, characterized in that The aviation fuel filling system further comprises a pipeline assembly, the pipeline assembly comprises a first valve assembly, a pair of first hoses and a plurality of first communication pipes, the outlets of the pair of oil pump assemblies are respectively communicated with a first inlet and a second inlet of the first valve assembly through the pair of first hoses, and the outlet of the first valve assembly is in turn communicated with the filter separator, the flow meter, the hose reel and the fuel gun through the plurality of first communication pipes.

3. The fuel oil filling system according to claim 2, characterized in that The pipeline assembly further comprises a second valve assembly, a pair of second hoses and a third hose, the third hose is connected between the flow meter and an inlet of the second valve assembly, a first outlet and a second outlet of the second valve assembly are respectively communicated with inlets of the pair of second hoses, and outlets of the pair of second hoses are respectively inserted into the pair of oil tanks; wherein the pair of oil pump assemblies are in turn communicated with the filter separator, the flow meter, the third hose, the second valve assembly and the pair of second hoses and form a self-circulation circuit of the oil tanks; wherein during self-circulation, one of the pair of oil pump assemblies is in working state and the other is in idle state.

4. The fuel oil filling system according to claim 3, characterized in that The pipeline assembly further comprises a second communication pipe; the filter separator comprises an exhaust port, the exhaust port is communicated with an inlet of the second valve assembly through the second communication pipe.

5. The fuel oil filling system according to claim 4, characterized in that The aviation fuel filling system further comprises an exhaust valve assembled on the second communication pipe; and / or The aviation fuel filling system further comprises a sight glass assembled on the second communication pipe; and / or The aviation fuel filling system further comprises a flame arrestor vent valve assembled on the second communication pipe; and / or The aviation fuel filling system further comprises a sight glass, the sight glass comprises a 3 / 4 sight glass.

6. The fuel oil filling system according to claim 4, characterized in that The aviation fuel filling system further comprises an exhaust valve, a flame arrestor vent valve and a sight glass, the flame arrestor vent valve is located between the exhaust valve and the sight glass, the exhaust valve is arranged close to the exhaust port, and the sight glass is arranged close to the second valve assembly.

7. Fuel oil filling system according to claim 6, characterized in that A first end of the third hose is communicated with the first communication pipe between the flow meter and the hose reel, a second end of the third hose is communicated with the second communication pipe between the exhaust port and the inlet of the second valve assembly, and the second end of the third hose is located between the exhaust valve and the flame arrestor vent valve.

8. The fuel oil filling system according to claim 7, characterized in that The pipeline assembly further comprises a third communication pipe, the third communication pipe is communicated with the second communication pipe and the first communication pipe.

9. The fuel oil filling system according to claim 8, characterized in that The fueling system further comprises a pressure gauge; a first end of the third communication pipe is in communication with the second communication pipe and is located between the exhaust valve and the second end of the third hose, and a second end of the third communication pipe is connected with the pressure gauge.

10. The fuel oil filling system according to claim 8, characterized in that The third communication pipe comprises a first communication part and a second communication part. The first communication part is in communication with the first communication pipe located between the first valve assembly and the filter separator, and the second communication part is in communication with the first communication pipe located between the filter separator and the flow meter. The fueling system further comprises a differential pressure gauge, which is located between the first communication part and the second communication part.

11. The fuel oil filling system according to claim 3, characterized in that The third hose comprises a detachable hose, which, in use, is connected between the outlet of the flow meter and the inlet of the second valve assembly; and / or The filter separator further comprises a drain port located at the bottom of the filter separator; the pipeline assembly further comprises a joint through which the drain port is connected with an external pipeline; and / or The third hose comprises a 3 / 4 inch hose; and / or The second hose comprises a 3 / 4 inch hose; and / or The first hose comprises a 1 / 4 inch hose; and / or The second valve assembly comprises a three-way valve; and / or The first valve assembly comprises a three-way valve.

12. The fuel oil filling system according to claim 1, characterized in that The hose reel comprises a 1 inch hose reel; and / or The fueling gun comprises a gravity fueling gun; and / or The oil pump assembly is an explosion-proof oil pump assembly.

13. A fuel dispensing device, characterized in that The fueling system as claimed in any one of claims 1 to 12 is assembled on a tray device.

14. The fuel oil filling connection according to claim 13, characterized in that The fueling device further comprises a mobile device detachably connected with the tray device, and when the mobile device is connected with the tray device, the mobile device drives the tray device and the fueling system on the tray device to move.

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