Multifunctional comprehensive detection device for explosion-proof fueling plug

Abstract

A multi-functional explosion-proof fuel filler valve comprehensive testing device includes a cover and a return oil pipeline passing through the cover. The output end of the return oil pipeline is connected to the fuel storage tank body. The bottom end of the cover can be fitted onto the upper part of the fuel filler valve body. A differential pressure component is installed on the return oil pipeline, a displacement component is installed on the top of the cover, and a movable static hydraulic component is installed inside the cover. This invention, through the cooperation of the differential pressure component, displacement component, and static hydraulic component, and relying on the cover, can quickly and effectively complete multiple tests on the fuel filler valve body, effectively avoiding the inconvenience caused by frequent replacement of testing equipment, improving testing accuracy, greatly shortening the time required to test fuel filler valves, and improving testing efficiency. At the same time, the return oil pipeline can also reduce fuel waste.

Description

Technical Field

[0001] This utility model relates to the field of fuel filler valve detection technology, and in particular to a multi-functional explosion-proof fuel filler valve integrated detection device. Background Technology

[0002] As a key piece of equipment in the airport's aviation fuel supply system, the performance of the refueling plug directly affects the safety of aviation fuel transportation. The refueling plug is connected to the airport's fuel storage tanks through underground pipelines and serves as the ground interface for the aircraft refueling system. When an aircraft needs refueling, the refueling truck connects the vehicle-mounted ground connector to the refueling plug and then supplies fuel to the aircraft. In order to ensure the safe use of the refueling plug, it is necessary to conduct strict testing on it.

[0003] In existing technologies, such as the Chinese patent with publication number CN223021251U, a comprehensive testing device for apron equipment is disclosed. This device uses two testing devices to measure the displacement of refueling plugs.

[0004] However, the above technical solution still has at least the following drawbacks: since there are many items to be tested on the refueling plug, such as whether the T-valve of the refueling plug is normal and the displacement of the refueling plug, a single device can only complete the displacement test. When testing other items, different devices need to be replaced. The operation of multiple devices in a decentralized manner results in a long time required to test the refueling plug and low testing efficiency. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the existing technology, this utility model provides a multi-functional explosion-proof fuel filler comprehensive testing device, including a cover and a return oil pipeline passing through the cover. The output end of the return oil pipeline is connected to the oil storage tank body, and the bottom end of the cover can be fitted onto the upper part of the fuel filler body.

[0006] A differential pressure assembly is installed on the return oil pipeline, a displacement assembly is installed on the top of the cover, and a static-dynamic hydraulic assembly that can be raised and lowered is installed inside the cover.

[0007] The static-dynamic hydraulic assembly includes a connecting pipe and a control valve and a first pressure sensor mounted on the connecting pipe. The output end of the connecting pipe is connected to the return oil line, and the input end of the connecting pipe can be inserted into the end face outlet of the filler plug body.

[0008] More preferably, a first telescopic rod is fixedly installed on the inner top wall of the cover, and a bracket is fixedly connected to the bottom end of the first telescopic rod, the bracket being fixedly connected to the outer surface of the connecting pipe.

[0009] More preferably, the differential pressure assembly includes a second pressure sensor, a check valve, an oil suction pump, and an electric valve, which are sequentially arranged on the return oil line.

[0010] More preferably, the displacement component includes an inertial navigation sensor and a ranging sensor, the inertial navigation sensor being fixedly mounted on the top of the cover, and the ranging sensor being mounted on the inertial navigation sensor.

[0011] More preferably, the outer surface of the cover is provided with a support assembly, which is used to vertically sleeve the cover on the upper part of the fuel filler body and to align the connecting pipe with the end face outlet.

[0012] More preferably, the support assembly includes a fixed frame, a second telescopic rod is fixedly installed on the lower surface of the fixed frame, the bottom end of the second telescopic rod is fixedly connected to the cover, and a support leg is fixedly connected to the edge of the lower surface of the fixed frame.

[0013] More preferably, the side wall of the shroud is provided with an oil and gas concentration assembly, which includes two oil and gas concentration measuring probes, and the two oil and gas concentration measuring probes are symmetrically installed on the inner wall of the shroud.

[0014] More preferably, an end-face wear assembly is provided inside the cover, the end-face wear assembly is flush with the outer edge of the upper end of the fuel filler body, the end-face wear assembly includes a plurality of 3D optical profilometers, a mounting groove is formed in the lower part of the cover, and the plurality of 3D optical profilometers are evenly distributed in the mounting groove.

[0015] More preferably, a channel is formed on the cover, through which the oil return line extends into or out of the cover.

[0016] More preferably, the oil storage tank body is mounted on the vehicle body, and the cover and the oil return pipeline can be installed on the vehicle body.

[0017] Compared with existing technologies, this utility model, through the cooperation of differential pressure components, displacement components and static and dynamic hydraulic components, can quickly and effectively complete multiple tests on the fuel filler body by relying on the cover. It effectively avoids the inconvenience caused by frequent replacement of testing equipment, which helps to improve the accuracy of testing, greatly shortens the time required to test the fuel filler, and improves the testing efficiency. At the same time, the return oil line can also reduce the waste of oil. Attached Figure Description

[0018] Figure 1 This is a schematic diagram showing the connection of the differential pressure component, displacement component, and static / dynamic hydraulic component of this utility model.

[0019] Figure 2 This is a schematic diagram of the differential pressure assembly connection of this utility model.

[0020] Figure 3This is a schematic diagram of the connection of the static and dynamic hydraulic components of this utility model.

[0021] Figure 4 This is a schematic diagram of the displacement component connection of this utility model.

[0022] Figure 5 This is a frontal axonometric structural diagram of the cover of this utility model installed on the fuel filler body.

[0023] Figure 6 This is a front sectional view of the structure of this utility model.

[0024] Figure 7 This is a schematic diagram of the right-side cross-sectional structure of this utility model.

[0025] Figure 8 This is a schematic diagram of the cover structure of this utility model.

[0026] Figure 9 This is a schematic diagram of the front sectional structure of the cover of this utility model.

[0027] Figure 10 This is a schematic diagram of the cover structure of this utility model from a bottom view.

[0028] Figure 11 This is a schematic diagram of the application of this utility model in a refueling well.

[0029] Figure 12 This is a connection diagram for the use of this utility model.

[0030] Explanation of the labels in the diagram:

[0031] 1. Cover; 2. Return oil line; 3. Oil storage tank body; 4. Filling plug body; 5. Differential pressure assembly; 6. Displacement assembly; 7. Static and dynamic hydraulic assembly; 8. Connecting pipe; 9. Control valve; 10. First pressure sensor; 11. End face outlet; 12. First telescopic rod; 13. Bracket; 14. Second pressure sensor; 15. Check valve; 16. Oil suction pump; 17. Electric valve; 18. Inertial navigation sensor; 19. Distance sensor; 20. Fixing frame; 21. Second telescopic rod; 22. Outrigger; 23. Oil and gas concentration measuring probe; 24. 3D optical profilometer; 25. Mounting slot; 26. Channel; 27. Vehicle body. Detailed Implementation

[0032] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0033] Depend on Figures 1 to 12The present invention relates to a multifunctional explosion-proof fuel plug comprehensive testing device, including a cover 1 and a return oil line 2 that penetrates the cover 1. The output end of the return oil line 2 is connected to the oil storage tank body 3, and the bottom end of the cover 1 can be fitted onto the upper part of the fuel plug body 4.

[0034] A differential pressure assembly 5 is installed on the return oil line 2, a displacement assembly 6 is installed on the top of the cover 1, and a static and dynamic hydraulic assembly 7 that can be lifted and moved is installed inside the cover 1.

[0035] The static-dynamic hydraulic assembly 7 includes a connecting pipe 8, a control valve 9 and a first pressure sensor 10 mounted on the connecting pipe 8. The output end of the connecting pipe 8 is connected to the return oil line 2, and the input end of the connecting pipe 8 can be inserted into the end face outlet 11 of the filler plug body 4.

[0036] In these embodiments, the input end of the return oil line 2 is connected to the output end of the connecting pipe 8. The connecting pipe 8 is inserted into the end face outlet 11 of the fuel filler body 4, so that the fuel filler body 4, the connecting pipe 8, the return oil line 2, and the oil storage tank body 3 are connected in sequence, ensuring that the oil flowing out of the fuel filler body 4 during the testing process can flow back into the oil storage tank body 3. The lower end of the cover 1 has an insertion interface. The cover 1 is installed on the fuel filler body 4 through the insertion interface. After the connecting pipe 8 is inserted into the end face outlet 11, the T-valve of the fuel filler body 4 is statically and dynamically tested by opening and closing the fuel filler T-valve and coordinating with the control valve 9 and the first pressure sensor 10 to detect whether the T-valve of the fuel filler body 4 is qualified. At the same time, through the setting of the differential pressure component 5, the pressure change of the return oil line 2 can be detected in real time during the testing process, and the oil can also be actively extracted for backflow. And through the displacement component 6, the displacement of the fuel filler body 4 can also be detected simultaneously. With the cooperation of differential pressure component 5, displacement component 6 and static-dynamic hydraulic component 7, multiple tests on the fuel filler body can be completed quickly and effectively, effectively avoiding the inconvenience caused by frequent changes of testing equipment, greatly shortening the time required to test the fuel filler, improving testing efficiency, and making it more convenient and flexible to use.

[0037] The first pressure sensor 10 is arranged on the connecting pipe 8 close to the input end, and is configured to detect the fuel pressure in the connecting pipe 8. The control valve 9 is installed on the connecting pipe 8, and is configured to control the connection and disconnection of the connecting pipe 8. When performing static detection, after the cover body 1 is docked with the fuel nozzle body 4, the connecting pipe 8 is inserted into the end face outlet 11, and the fuel nozzle body 4 is in a state of opening the outlet at this time. In the normal use of the fuel nozzle body 4, when the T-shaped valve of the fuel nozzle body 4 is opened, fuel overflows from the end face outlet 11 of the fuel nozzle body 4, and the first pressure sensor 10 can detect the pressure; when the T-shaped valve is closed, no fuel overflows from the end face outlet 11 of the fuel nozzle body 4, and the first pressure sensor 10 cannot detect the pressure. Based on this, when the T-shaped valve is closed and the first pressure sensor 10 does not detect pressure, the detection result indicates that the T-shaped valve is qualified. On the contrary, if the first pressure sensor 10 detects pressure, the detection result indicates that the T-shaped valve is faulty and requires maintenance. A fault of the T-shaped valve is indicated when the displayed pressure data is contrary to the normal condition.

[0038] When performing dynamic detection, after the connecting pipe 8 is docked in place, when the T-shaped valve of the fuel nozzle body 4 is opened to reach the maximum flow rate (the control valve 9 is in a conducting state at this time), the opening and closing time of the T-shaped valve is calculated according to the pressure data of the first pressure sensor 10. When the opening time does not exceed 10 seconds and the closing time is 2 to 5 seconds, the T-shaped valve passes the dynamic detection. In addition, the T-shaped valve can be kept open at the maximum flow rate, and the flow rate can be changed through the control valve 9 to simulate the sudden increase or decrease of oil pressure in the oil transmission pipeline network, so as to accurately measure the pressure stability of the fuel nozzle body 4 when the flow rate changes suddenly. The control valve 9 can be a servo valve or other valves that control flow changes, and other types of valves can also be selected according to use requirements. The mechanical structure and working principle of the control valve 9 and the first pressure sensor 10 are all in the prior art, so the detailed mechanical structure and working principle thereof will not be repeated herein. During static and dynamic detection, fuel can be recovered in time through the oil return pipeline 2, which reduces fuel waste and is more convenient to use. During detection, since the connecting pipe 8 is directly inserted into the end face outlet 11, the sealing effect of the two may be slightly insufficient, and a small amount of fuel overflowing from the end face outlet 11 is a normal phenomenon in fuel nozzle detection operations. Of course, sealing elements such as sealing rings can also be additionally installed on the connecting pipe 8, so that the joint of the end face outlet 11 is completely sealed by the sealing element when the two are docked. The aforementioned devices are all in the prior art of existing pipeline insertion, so they will not be repeated herein, the sealing requirement of the end face outlet 11 can be flexibly selected according to actual detection requirements, and is not limited in the present utility model.

[0039] In some embodiments of the multifunctional explosion-proof comprehensive detection device for fuel nozzles, a first telescopic rod 12 is fixedly installed on the inner top wall of the cover body 1, a bracket 13 is fixedly connected to the bottom end of the first telescopic rod 12, and the bracket 13 is fixedly connected to the outer surface of the connecting pipe 8.

[0040] In these implementations, such as Figure 6 As shown, the telescopic movement of the first telescopic rod 12 drives the bracket 13 to move up and down within the cover 1, thereby moving the connecting pipe 8 and ensuring the flexible and stable connection between the connecting pipe 8 and the end face outlet 11, resulting in more precise and efficient operation. The first telescopic rod 12 is preferably an electric telescopic rod, but it can also be a hydraulic telescopic rod, which can be flexibly selected according to usage requirements. The mechanical structure and working principle of electric and hydraulic telescopic rods are existing technologies, so their detailed mechanical structure and working principle will not be described in detail in this paper.

[0041] In some implementations of the multi-functional explosion-proof fuel plug integrated detection device, the differential pressure component 5 includes a second pressure sensor 14, a check valve 15, an oil suction pump 16, and an electric valve 17, which are sequentially arranged on the return oil line 2.

[0042] In these embodiments, the cooperation of the second pressure sensor 14, check valve 15, oil suction pump 16, and electric valve 17 enables timely and effective oil recovery, reduces leakage, and ensures a safe operating environment. It also allows for real-time monitoring of ambient pressure differentials. Combined with the explosion-proof certified enclosure 1, the safe operation of the device is ensured. Furthermore, other instruments can also be packaged in explosion-proof housings for better suitability for testing applications. The mechanical structure and working principle of the second pressure sensor 14, check valve 15, oil suction pump 16, and electric valve 17 are existing technologies, and their detailed mechanical structure and working principle will not be described in detail herein.

[0043] In some implementations of the multi-functional explosion-proof refueling hydrant integrated detection device, the displacement component 6 includes an inertial navigation sensor 18 and a distance measuring sensor 19. The inertial navigation sensor 18 is fixedly installed on the top of the cover 1, and the distance measuring sensor 19 is installed on the inertial navigation sensor 18.

[0044] In these embodiments, the distance sensor 19, located on the top of the cover 1, can effectively detect the offset of the fuel filler body 4 at a certain position on the horizontal plane. In conjunction with the inertial navigation sensor 18, the specific offset direction is determined and recorded. The distance sensor 19 measures the offset, and the inertial navigation sensor 18 identifies and determines the specific offset direction. Through their cooperation, displacement detection can be completed efficiently and accurately. The distance sensor 19 can also be a high-precision laser rangefinder to improve detection accuracy. The mechanical structure and working principle of the distance sensor 19 and the inertial navigation sensor 18 are existing technologies, so their detailed mechanical structure and working principle will not be described in detail herein.

[0045] In some embodiments of the multifunctional explosion-proof fuel plug integrated testing device, the outer surface of the cover 1 is provided with a support component. The support component is used to vertically sleeve the cover 1 on the upper part of the fuel plug body 4 and to align the connecting pipe 8 with the end face outlet 11.

[0046] In these embodiments, the cover 1 is installed at the wellhead of the refueling hydrant by a support assembly, which not only ensures the stable use of the cover 1, but also facilitates installation and recycling, making it convenient and efficient to use.

[0047] In some embodiments of the multi-functional explosion-proof fuel plug integrated testing device, the support component includes a fixed frame 20, a second telescopic rod 21 is fixedly installed on the lower surface of the fixed frame 20, the bottom end of the second telescopic rod 21 is fixedly connected to the cover 1, and a support leg 22 is fixedly connected to the edge of the lower surface of the fixed frame 20.

[0048] In these embodiments, after the outrigger 22 is positioned around the fuel filler wellhead, the cover 1 is lowered and fitted onto the fuel filler body 4 via the second telescopic rod 21. The second telescopic rod 21 ensures the accuracy of the cover 1 installation, thereby ensuring that the connecting pipe 8 can accurately connect to the end face outlet 11. The second telescopic rod 21 is preferably an electric telescopic rod, but it can also be a hydraulic telescopic rod, which can be flexibly selected according to usage requirements. The mechanical structure and working principle of electric and hydraulic telescopic rods are existing technologies, so their detailed mechanical structure and working principle will not be described in detail in this paper.

[0049] Furthermore, the support component can also be a vehicle-mounted robotic arm. The movable end of the robotic arm is fixedly installed with the cover 1. The robotic arm drives the movement and loading / unloading of the cover 1, which further improves the convenience of use. The mechanical structure and working principle of the robotic arm are existing technologies, so its detailed mechanical structure and working principle will not be described in detail in this article.

[0050] In some embodiments of the multi-functional explosion-proof refueling hydrant integrated testing device, the side wall of the cover 1 is provided with an oil and gas concentration component, which includes two oil and gas concentration measuring probes 23, which are symmetrically installed on the inner wall of the cover 1.

[0051] In these implementations, oil and gas concentration measuring probe 23 is used to detect whether there is an oil or gas leak and to detect the concentration of combustible gas to ensure safety and further improve operational safety. In actual use, it can also be linked to the control system to trigger an emergency shutdown, reducing the leakage accident rate.

[0052] In some embodiments of the multi-functional explosion-proof fuel plug comprehensive testing device, an end face wear component is provided inside the cover 1. The end face wear component is flush with the outer edge of the upper end of the fuel plug body 4. The end face wear component includes several 3D optical profilometers 24. A mounting groove 25 is formed in the lower part of the cover 1, and several 3D optical profilometers 24 are evenly distributed in the mounting groove 25.

[0053] In these embodiments, the cover 1 has an installation groove 25 formed at the upper end of the fuel filler body 4. After the cover 1 is fitted onto the fuel filler body 4, the 3D optical profilometer 24 can face the end face outlet 11 and its end face side and end face oblique side (i.e. the port annular groove of the fuel filler body 4). The 3D optical profilometer 24 can scan and detect the port of the fuel filler body 4, and can quickly detect the wear condition.

[0054] In some implementations of the multi-functional explosion-proof fuel hydrant integrated testing device, a channel 26 is formed on the cover 1, and the return oil line 2 extends into or out of the cover 1 through the channel 26.

[0055] In these embodiments, the arrangement of channel 26 ensures that the return oil line 2 can stably enter and exit the cover 1, so as to facilitate the operation of the connecting pipe 8.

[0056] In some implementations of the multi-functional explosion-proof fuel hydrant integrated testing device, the oil storage tank body 3 is mounted on the vehicle body 27, and the cover 1 and the return oil line 2 can be installed on the vehicle body 27.

[0057] In these embodiments, the vehicle body 27 is a multi-functional vehicle to meet various operational needs. The mobile cover 1 is transported by vehicle, making it more convenient to use and easier for airport inspection.

[0058] In use, the cover 1 is fitted onto the fuel filler body 4, and then the connecting pipe 8 is connected to the end face outlet 11 to complete the installation. Subsequently, through the coordinated operation of the differential pressure component 5, displacement component 6, static and dynamic hydraulic component 7, oil and gas concentration component, and end face wear component, the fuel filler can be quickly and accurately tested for T-valve, displacement, oil and gas concentration, and end face wear. Multiple tests can be performed simultaneously, effectively shortening the testing time and increasing testing efficiency.

[0059] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. The above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multifunctional comprehensive detection device for explosion-proof fueling nozzle, characterized in that, It includes a cover (1) and an oil return line (2) that passes through the cover (1). The output end of the oil return line (2) is connected to the oil storage tank body (3). The bottom end of the cover (1) can be fitted onto the upper part of the oil filling plug body (4). A differential pressure assembly (5) is provided on the return oil pipeline (2), a displacement assembly (6) is provided on the top of the cover (1), and a static hydraulic assembly (7) that can be lifted and moved is provided inside the cover (1). The static and dynamic hydraulic assembly (7) includes a connecting pipe (8) and a control valve (9) and a first pressure sensor (10) installed on the connecting pipe (8). The output end of the connecting pipe (8) is connected to the return oil line (2), and the input end of the connecting pipe (8) can be inserted into the end face outlet (11) of the oil filling plug body (4).

2. The multifunctional comprehensive detection device for the explosion-proof fueling nozzle according to claim 1, characterized in that, The inner top wall of the cover (1) is fixedly installed with a first telescopic rod (12), and the bottom end of the first telescopic rod (12) is fixedly connected with a bracket (13), which is fixedly connected to the outer surface of the connecting pipe (8).

3. The multifunctional comprehensive detection device for the explosion-proof fueling nozzle according to claim 1, characterized in that, The differential pressure assembly (5) includes a second pressure sensor (14), a check valve (15), an oil suction pump (16), and an electric valve (17), which are sequentially arranged on the return oil line (2).

4. The multifunctional comprehensive detection device for the explosion-proof fueling nozzle according to claim 1, characterized in that, The displacement component (6) includes an inertial navigation sensor (18) and a ranging sensor (19). The inertial navigation sensor (18) is fixedly installed on the top of the cover (1), and the ranging sensor (19) is mounted on the inertial navigation sensor (18).

5. The multifunctional comprehensive detection device for the explosion-proof fueling nozzle according to claim 1, characterized in that, The outer surface of the cover (1) is provided with a support assembly, which is used to vertically sleeve the cover (1) on the upper part of the fuel filler body (4) and to align the connecting pipe (8) with the end face outlet (11).

6. The multifunctional comprehensive detection device for the explosion-proof fueling nozzle according to claim 5, characterized in that, The support assembly includes a fixed frame (20), a second telescopic rod (21) is fixedly installed on the lower surface of the fixed frame (20), the bottom end of the second telescopic rod (21) is fixedly connected to the cover (1), and a support leg (22) is fixedly connected to the edge of the lower surface of the fixed frame (20).

7. The multifunctional comprehensive detection device for the explosion-proof fueling nozzle according to claim 1, characterized in that, The side wall of the cover (1) is provided with an oil and gas concentration component, which includes two oil and gas concentration measuring probes (23), and the two oil and gas concentration measuring probes (23) are symmetrically installed on the inner wall of the cover (1).

8. The multifunctional comprehensive detection device for the explosion-proof fueling nozzle according to claim 1, characterized in that, An end face wear assembly is provided inside the cover (1). The end face wear assembly is flush with the outer edge of the upper end of the oil plug body (4). The end face wear assembly includes several 3D optical profilometers (24). A mounting groove (25) is formed in the lower part of the cover (1). The several 3D optical profilometers (24) are evenly distributed in the mounting groove (25).

9. The multifunctional comprehensive detection device for the explosion-proof fueling nozzle according to claim 1, characterized in that, A channel (26) is formed on the cover (1), and the oil return line (2) extends into or out of the cover (1) through the channel (26).

10. The multifunctional explosion-proof refueling hydrant comprehensive testing device according to claim 1, characterized in that, The oil storage tank body (3) is mounted on the vehicle body (27), and the cover (1) and the return oil line (2) can be installed on the vehicle body (27).

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