An intelligent and multifunctional device for adding fungicide to aircraft fuel tanks

Abstract

An intelligent multi-functional aircraft fuel tank bactericide adding device. It includes a housing, a temperature control box, an aviation fuel and bactericide mixing container, a flow pump, a power interface, an intelligent digital display touchable console, a bactericide delivery pipeline, a bactericide flowmeter, a fuel input pipeline, a fuel output pipeline, a first sensor, a second sensor, a flow sensor, an oil injection interface, an oil outlet interface and a bactericide input pipe; The effect of the present invention: This device integrates aircraft refueling and bactericide addition, greatly reducing the labor intensity of workers, improving the operation efficiency and safety, and at the same time having functions of mixing, monitoring, alarm protection and lighting.

Description

Technical Field

[0001] The present invention belongs to the technical field of military and civilian aircraft maintenance, and particularly relates to an intelligent multi-functional aircraft fuel tank bactericide adding device. Background Art

[0002] During aircraft maintenance, attention needs to be paid to the corroded locations. Corrosion at the fuel tank is often an easily overlooked area. Different from the areas on the outside of the airframe that can be directly visually observed, the inside of the fuel tank is often corroded directly or indirectly by the activities of microorganisms, damaging its structure. Microorganisms may be introduced during any process from fuel production to transportation. At the same time, fuel inevitably contains a certain proportion of moisture. In addition to moisture and bacteria, aviation fuel and related additives, and even the related materials inside the fuel tank can provide nutrients for the growth of some bacteria in nature. Then, in a relatively mild environment, microorganisms begin to multiply.

[0003] At present, the prevention and control of microbial corrosion in aircraft fuel tanks are relatively limited. In addition to improving fuel quality and subsequent protection (such as regularly maintaining, cleaning, and repairing the fuel system, etc.), in order to better prevent corrosion of the fuel tank, bactericides are started to be added to it to achieve a better anti-corrosion effect.

[0004] During the addition of bactericides, in order to avoid affecting the performance of the fuel itself, the aircraft system structure, the environment, and the human body, there are certain restrictions on the dosage of bactericides.

[0005] Currently, there is little research on special equipment in this regard in China. The traditional bactericide addition process has many steps, low efficiency, and it is difficult to accurately control the addition amount of bactericides. The Chinese Utility Model Patent CN215707215U discloses a mixing device. Although this device can achieve the mixing of bactericides and fuel, the device itself is not intelligent enough, has a single function, and it is difficult to achieve precise addition and full mixing of bactericides; the stirring blades of the device are also easily affected by the erosion operation of high-pressure refueling, affecting its structure; the device cannot monitor and control the liquid state of bactericides in real time. In addition, the device also lacks functions such as warning and protection for refueling operations. Summary of the Invention

[0006] In order to solve the above problems, the purpose of the present invention is to provide an intelligent multi-functional aircraft fuel tank bactericide adding device.

[0007] To achieve the above object, the intelligent multi-functional aircraft fuel tank bactericide adding device provided by the present invention includes a housing, a temperature control box, an aviation fuel and bactericide mixing container, a flow pump, a power supply interface, an intelligent digital display touchable console, a bactericide delivery pipeline, a bactericide flow meter, a fuel input pipeline, a fuel output pipeline, a first sensor, a second sensor, a flow sensor, an oil injection interface, an oil outlet interface and a bactericide input pipe;

[0008] Among them, the temperature control box and the aviation fuel and bactericide mixing container are arranged inside the housing; the door of the temperature control box is located at the opening on the housing, and a bactericide container connecting device is arranged inside. The upper end of the bactericide container connecting device is connected to the upper end of the bactericide delivery pipeline, and the lower end of the bactericide delivery pipeline is connected to the liquid inlet of the flow pump; the bactericide flow meter is installed on the bactericide delivery pipeline;

[0009] The aviation fuel and bactericide mixing container is of a cylindrical structure and is divided into upper and lower parts inside. The lower part is a cavity structure, and a spiral delivery oil path is arranged inside the upper part. The lower end of the spiral delivery oil path is communicated with the cavity in the lower part; a fuel input pipeline and a bactericide input pipeline are arranged in parallel along the tangent direction on the circumferential surface of the lower part. The outer end of the bactericide input pipeline is connected to the liquid discharge port of the flow pump; the outer end of the fuel input pipeline passes through the side wall of the housing and is connected to the oil injection interface; the first sensor is installed at the connection of the fuel input pipeline and the housing; the flow sensor is installed on the fuel input pipeline; the upper end of the aviation fuel and bactericide mixing container is provided with a fuel output pipeline communicated with the spiral delivery oil path. The outer end of the fuel output pipeline passes through the top surface of the housing and is connected to the oil outlet interface; the second sensor is installed at the connection of the fuel output pipeline and the housing;

[0010] The power supply interface and the intelligent digital display touchable console are embedded on the housing, and the intelligent digital display touchable console is electrically connected to the temperature control box, the flow pump, the power supply interface, the bactericide flow meter, the first sensor, the second sensor and the flow sensor respectively.

[0011] The intelligent multi-functional aircraft fuel tank bactericide adding device further includes a stirring device installed at the lower part of the aviation fuel and bactericide mixing container.

[0012] The intelligent multi-functional aircraft fuel tank bactericide adding device further includes a bendable lighting source installed on the housing, and the bendable lighting source is electrically connected to the intelligent digital display touchable console.

[0013] A first device connection interface for connecting with the fuel input pipeline is arranged on the outer side of the lower part of the housing, and the first sensor is installed on the first device connection interface; a second device connection interface for connecting with the fuel output pipeline is arranged on the outer side of the top of the housing, and the second sensor is installed on the second device connection interface.

[0014] The fuel input pipeline and the fuel injection interface, and the fuel output pipeline and the fuel outlet interface are connected by a rotary connection method.

[0015] The temperature control box has a double-layer structure.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] It enables operators to control the addition of fuel bactericide at the intelligent digital display touchable console. It can not only accurately control the addition amount of the inhibitor, but also fully mix it during the transportation process through the internal aviation fuel and bactericide mixing container. In addition, the device can real-time monitor the remaining amount inside the bactericide storage container and control its liquid temperature. It can also detect the connection status of the device shell and the fuel input / output pipelines. If there is a connection problem, it will display "connection invalid" on the intelligent digital display touchable console and the internal buzzer will give a connection warning. To ensure the versatility of the device, a rotary detachable connection fuel injection / fuel outlet interface is set at the special equipment connection end. By replacing the interfaces matching with airplanes, refueling trucks, etc., it can realize the matching operation for different types of airplanes. In addition, if the ambient light is insufficient, the external flexible lighting source can provide operation lighting. The device integrates aircraft refueling and bactericide addition, greatly reducing the labor intensity of workers, improving the operation efficiency and safety, and at the same time having the functions of mixing, monitoring, warning protection and lighting. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the intelligent multifunctional aircraft fuel tank bactericide addition device provided by the present invention;

[0019] Figure 2 It is a schematic internal structure diagram of the temperature control box;

[0020] Figure 3 It is a schematic structural diagram of the aviation fuel and bactericide mixing container;

[0021] Figure 4 It is a top view of the aviation fuel and bactericide mixing container; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present invention will be described in detail below with reference to the drawings.

[0023] Refer to Figures 1-4, the intelligent multi-functional aircraft fuel tank bactericide adding device provided by the present invention includes a housing 1, a temperature control box 2, an aviation fuel and bactericide mixing container 3, a flow pump 4, a power supply interface 5, an intelligent digital display touchable console 6, a bactericide delivery pipeline 7, a bactericide flowmeter 8, a fuel input pipeline 11, a fuel output pipeline 12, a first sensor 13, a second sensor 14, a flow sensor 15, an oil injection interface 16, an oil outlet interface 17, and a bactericide input pipe 19;

[0024] Among them, the temperature control box 2 and the aviation fuel and bactericide mixing container 3 are arranged inside the housing 1; the door of the temperature control box 2 is located at the opening on the housing 1, and a bactericide container connection device 21 is provided inside. The upper end of the bactericide container connection device 21 is connected to the upper end of the bactericide delivery pipeline 7, and the lower end of the bactericide delivery pipeline 7 is connected to the liquid inlet of the flow pump 4; the bactericide flowmeter 8 is installed on the bactericide delivery pipeline 7;

[0025] The aviation fuel and bactericide mixing container 3 has a cylindrical structure and is divided into upper and lower parts inside. The lower part is a cavity structure, and a spiral delivery oil path is provided inside the upper part. The lower end of the spiral delivery oil path is connected to the cavity in the lower part; a fuel input pipeline 11 and a bactericide input pipeline 19 are arranged in parallel along the tangential direction on the circumferential surface of the lower part. The outer end of the bactericide input pipeline 19 is connected to the liquid discharge port of the flow pump 4; the outer end of the fuel input pipeline 11 passes through the side wall of the housing 1 and is connected to the oil injection interface 16; the first sensor 13 is installed at the connection between the fuel input pipeline 11 and the housing 1; the flow sensor 15 is installed on the fuel input pipeline 11; the upper end of the aviation fuel and bactericide mixing container 3 is provided with a fuel output pipeline 12 connected to the spiral delivery oil path. The outer end of the fuel output pipeline 12 passes through the top surface of the housing 1 and is connected to the oil outlet interface 17; the second sensor 14 is installed at the connection between the fuel output pipeline 12 and the housing 1;

[0026] The power supply interface 5 and the intelligent digital display touchable console 6 are embedded on the housing 1, and the intelligent digital display touchable console 6 is electrically connected to the temperature control box 2, the flow pump 4, the power supply interface 5, the bactericide flowmeter 8, the first sensor 13, the second sensor 14, and the flow sensor 15 respectively.

[0027] The intelligent multi-functional aircraft fuel tank bactericide adding device further includes a stirring device 31 installed at the lower part of the aviation fuel and bactericide mixing container 3. The stirring device 31 is electrically connected to the intelligent digital display touchable console 6 to make the fuel and the bactericide mix better.

[0028] The intelligent multifunctional aircraft fuel tank bactericide adding device further includes a bendable lighting source 18 installed on the outer shell 1. The bendable lighting source 18 is electrically connected to the intelligent digital display touch console 6 and is used to provide lighting for this device in harsh environments.

[0029] A first device connection interface 9 for connecting to the fuel input pipeline 11 is provided on the outer side of the lower part of the outer shell 1, and the first sensor 13 is installed on the first device connection interface 9; a second device connection interface 10 for connecting to the fuel output pipeline 12 is provided on the outer side of the top of the outer shell 1, and the second sensor 14 is installed on the second device connection interface 10.

[0030] The fuel input pipeline 11 and the fuel injection interface 16, and the fuel output pipeline 12 and the oil outlet interface 17 are connected by a screwing connection method, which facilitates the replacement of fuel injection interfaces 16 and oil outlet interfaces 17 of different specifications to match the refueling vehicle and the aircraft.

[0031] The temperature control box 2 has a double-layer structure.

[0032] Now, the usage method of the intelligent multifunctional aircraft fuel tank bactericide adding device provided by the present invention is described as follows:

[0033] Before the operation of this device, the operator needs to correctly connect each component. The overall device is electrically driven. First, connect the power supply vehicle to the power interface 5. After connection, it can provide power guarantee for subsequent operations, and can also avoid the safety hazards brought by static electricity during the refueling process, providing safety protection for the operation process. Then, connect the fuel input pipeline 11 and the fuel output pipeline 12 to the first device connection interface 9 and the second device connection interface 10 respectively. If there are connection problems (including but not limited to loose connection, connection deviation, etc.), an alarm will be issued through the intelligent digital display touch console 6, and an alarm sound will be emitted by the buzzer on the intelligent digital display touch console 6. No alarm indicates that the device is correctly connected. Otherwise, prompt the operator to reconnect. Then, connect the fuel injection interface 16 and the oil outlet interface 17 to the fuel injection nozzle of the refueling vehicle and the aircraft fuel tank respectively.

[0034] Place the fungicide container in the temperature control box 2. Open the lid and tightly screw the fungicide container connection device 21 inside the temperature control box 2 to the container. The instructions for use of the fungicide product (BIOBOR JF) require that the product cannot be transferred to other containers for storage. At the same time, it must be protected from moisture and the container must be tightly closed when not in use. Therefore, the fungicide container connection device 21 is designed to be directly connected to the fungicide container, and the middle part is tubular, with the same material as the fungicide container. After connection, the two form a sealed structure. Secondly, the temperature range for using the fungicide requires avoiding overheating and frost. Therefore, the double-layer structure of the temperature control box 2 can better keep the fungicide in a relatively stable state. Then, according to the specific situation of the aircraft fuel tank (such as the fuel filling volume, the type of fungicide actually used, etc.), enter relevant information such as the required amount of fungicide on the intelligent digital display touch console 6. The intelligent digital display touch console 6 will automatically calculate and inject the fuel flow and fungicide flow into the aviation fuel and fungicide mixing container 3 in a certain proportion during the subsequent fuel filling process. The operator can monitor the temperature and remaining amount of the fungicide in real time from the intelligent digital display touch console 6. For the fungicide, it needs to be kept away from heat sources, hot surfaces, sparks, open flames and other ignition sources. At the same time, this device also needs to be antistatic treated. To ensure that the fungicide is in a relatively stable state, the temperature of the temperature control box 2 can be adjusted through the intelligent digital display touch console 6. At the same time, the overall double-layer structure of the temperature control box 2 can further reduce the impact of the environment on the fungicide. The cumulative consumption of the fungicide is displayed on the screen of the intelligent digital display touch console 6. If the usage amount is close to the capacity of the fungicide container, the operator can directly replace the fungicide container in the temperature control box 2. After replacement, click the "zero" interface on the intelligent digital display touch console 6, and the intelligent digital display touch console 6 will re-statistics the consumption of the fungicide inside the fungicide container to prepare for the next replacement. In addition, the parallel fuel input pipeline 11 and the fungicide input pipeline 19 can use liquid swirl mixing during fuel delivery.

[0035] When refueling, open the fuel delivery switch of the refueling vehicle. The fuel will enter the interior of the aviation fuel and fungicide mixing container 3 from the fuel input pipeline 11. The flow sensor 15 installed on the fuel input pipeline 11 will detect the flow rate in the fuel input pipeline 11. When the flow rate is detected, it will transmit a feedback electrical signal to the intelligent digital display touch console 6. The intelligent digital display touch console 6 will pump a specific flow rate of fungicide into the aviation fuel and fungicide mixing container 3 through the fungicide input pipe 19 using the flow pump 4 according to the set parameters, and at the same time, measure the dosage of the fungicide using the fungicide flowmeter 8. Since the aviation fuel and fungicide mixing container 3 has a special "two-stage structure", the fuel and the fungicide will be swirled and mixed once in the lower space of the aviation fuel and fungicide mixing container 3. At the same time, the stirring device 31 inside the aviation fuel and fungicide mixing container 3 can be adjusted through the intelligent digital display touch console 6 to achieve a better mixing effect. Subsequently, the mixed liquid level rises, and then the mixed liquid will enter the upper spiral-shaped fuel delivery oil circuit. The spiral-shaped fuel delivery oil circuit can further increase the delivery stroke under the condition of the same vertical height. The mixed liquid spirally rises against gravity to achieve secondary mixing. Subsequently, the mixed liquid will enter the aircraft fuel tank through the fuel output pipeline 12, realizing the integration of refueling and fungicide addition.

[0036] After refueling is completed, the flow sensor 15 still detects the flow rate of the fuel input pipeline 11. If the flow sensor 15 fails to detect the flow rate in the fuel input pipeline 11, that is, there is no fuel input, it will send a detection signal to the intelligent digital display touch console 6, and under the control of the intelligent digital display touch console 6, the flow pump 4 will be turned off. Only when there is fuel input and the flow sensor 15 detects the flow rate, is the flow pump 4 allowed to work. Because the response time of the circuit is very short, it can be considered that the fuel delivery and fungicide addition processes are simultaneous, so the accurate addition of the fungicide can be ensured.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent multi-functional aircraft fuel tank fungicide adding device, characterized in that: The intelligent multifunctional aircraft fuel tank bactericide adding device includes a housing (1), a temperature control box (2), an aviation fuel and bactericide mixing container (3), a flow pump (4), a power interface (5), an intelligent digital display touchable console (6), a bactericide delivery pipeline (7), a bactericide flowmeter (8), a fuel input pipeline (11), a fuel output pipeline (12), a first sensor (13), a second sensor (14), a flow sensor (15), an oil injection interface (16), an oil outlet interface (17), and a bactericide input pipe (19). Among them, the temperature control box (2) and the aviation fuel and bactericide mixing container (3) are arranged inside the housing (1); the door of the temperature control box (2) is located at the opening on the housing (1), and a bactericide container connection device (21) is arranged inside. The upper end of the bactericide container connection device (21) is connected to the upper end of the bactericide delivery pipeline (7), and the lower end of the bactericide delivery pipeline (7) is connected to the liquid inlet of the flow pump (4); the bactericide flowmeter (8) is installed on the bactericide delivery pipeline (7). The aviation fuel and bactericide mixing container (3) has a cylindrical structure and is divided into upper and lower parts inside. The lower part is a cavity structure, and a spiral delivery oil path is arranged inside the upper part. The lower end of the spiral delivery oil path is connected to the cavity in the lower part; a fuel input pipeline (11) and a bactericide input pipe (19) are arranged in parallel along the tangential direction on the circumferential surface of the lower part. The outer end of the bactericide input pipe (19) is connected to the liquid discharge port of the flow pump (4); the outer end of the fuel input pipeline (11) passes through the side wall of the housing (1) and is connected to the oil injection interface (16); the first sensor (13) is installed at the connection between the fuel input pipeline (11) and the housing (1); the flow sensor (15) is installed on the fuel input pipeline (11); the upper end of the aviation fuel and bactericide mixing container (3) is provided with a fuel output pipeline (12) connected to the spiral delivery oil path. The outer end of the fuel output pipeline (12) passes through the top surface of the housing (1) and is connected to the oil outlet interface (17); the second sensor (14) is installed at the connection between the fuel output pipeline (12) and the housing (1). The power interface (5) and the intelligent digital display touchable console (6) are embedded on the housing (1), and the intelligent digital display touchable console (6) is electrically connected to the temperature control box (2), the flow pump (4), the power interface (5), the bactericide flowmeter (8), the first sensor (13), the second sensor (14), and the flow sensor (15) respectively.

2. The intelligent multi-functional aircraft fuel tank fungicide adding device according to claim 1, characterized in that: The intelligent multifunctional aircraft fuel tank bactericide adding device further includes a stirring device (31) installed at the lower part of the aviation fuel and bactericide mixing container (3), and the stirring device (31) is electrically connected to the intelligent digital display touchable console (6).

3. The intelligent multi-functional aircraft fuel tank fungicide adding device according to claim 1, characterized in that: The intelligent multifunctional aircraft fuel tank bactericide adding device further includes a bendable lighting source (18) installed on the housing (1), and the bendable lighting source (18) is electrically connected to the intelligent digital display touchable console (6).

4. The intelligent multi-functional aircraft fuel tank fungicide adding device according to claim 1, wherein: A first device connection interface (9) for connecting with a fuel input pipeline (11) is provided on the outer side of the lower part of the housing (1), and a first sensor (13) is installed on the first device connection interface (9); a second device connection interface (10) for connecting with a fuel output pipeline (12) is provided on the outer side of the top of the housing (1), and a second sensor (14) is installed on the second device connection interface (10).

5. The intelligent multi-functional aircraft fuel tank fungicide adding device according to claim 1, wherein: The fuel input pipeline (11) and the fuel injection interface (16), and the fuel output pipeline (12) and the fuel outlet interface (17) are connected by a screwing connection method.

6. The intelligent multi-functional aircraft fuel tank bactericide adding device according to claim 1, characterized in that: The temperature control box (2) has a double-layer structure.

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