Aviation oil distribution air switch state monitoring device

Abstract

The utility model discloses an aviation oil power distribution air switch state monitoring device comprising a plurality of monitoring branches which are connected in parallel to form a monitoring circuit. The monitoring circuit and the data transmission circuit form a loop; the monitoring branch is provided with a photoelectric signal isolator, and one end of the photoelectric signal isolator is connected with a live wire end of an air switch of the aviation oil power distribution equipment; the other ends of the plurality of photoelectric signal isolators are integrated together and are jointly connected with a zero line of the power distribution cabinet; the data transmission circuit is connected in series with a data transmission chip, a data processor and a power supply chip; the data transmission circuit is provided with a power supply positive terminal and a power supply negative terminal, and the power supply positive terminal is connected with the power supply chip; the power supply positive terminal and the power supply negative terminal are respectively connected with a positive electrode and a negative electrode of an external power supply. According to the utility model, the state of the aviation oil distribution air switch can be monitored in real time.

Description

Technical Field

[0001] The utility model relates to an accessory for civil aviation fuel supply equipment, in particular to an aviation fuel distribution circuit breaker state monitoring device. Background Art

[0002] In aviation fuel (JF) distribution and storage systems, the stability and security of the power supply are crucial. The proper operation of JF fuel facilities relies on various electrical equipment, such as fuel pumps, valve control devices, and monitoring systems. The power distribution and protection of these devices are primarily handled by circuit breakers (CBs) within the power distribution system.

[0003] According to relevant aviation fuel technical standards, such as the "Safety Specifications for Storage and Transportation of Civil Aviation Fuel", the aviation fuel distribution system must ensure high reliability and accuracy to prevent safety accidents caused by electrical failures, including serious consequences such as fire and explosion. As a key component of the distribution system, the status of the circuit breaker directly affects the effectiveness and safety of power distribution. Since the existing circuit breakers only have basic overload and short-circuit protection functions and lack active monitoring and remote communication capabilities, it is difficult to meet the requirements of real-time monitoring, fault warning and rapid response of the power system in the aviation fuel operation environment. Once the circuit breaker has an abnormality, such as false tripping, contact sticking, etc., it may cause interruption of aviation fuel transportation, damage to equipment, and even endanger the safety of the entire aviation fuel storage and distribution facilities. Therefore, in order to improve the intelligent management level of the aviation fuel distribution system and ensure the safety of aviation fuel operations, it is necessary to monitor and sample the aviation fuel distribution circuit breakers. However, the current sampling operations are all manual operations, and this operation method has the following defects:

[0004] 1. Lack of timeliness;

[0005] - Fault detection delay: Circuit breaker faults are sudden and unpredictable. For example, a short circuit causes an instant trip, which cannot be detected by manual operation in real time. Often, the fault is not discovered until the equipment shuts down or triggers other chain reactions, resulting in delayed maintenance and affecting the continuity of aviation fuel distribution and storage.

[0006] - Unable to monitor in real time: Aviation fuel operations require 24-hour uninterrupted power supply. It is difficult for manual operators to constantly monitor the status of the circuit breaker. For example, problems that occur in the middle of the night or during holidays are difficult to detect in time.

[0007] 2. Limited accuracy;

[0008] - Difficulty in accurately diagnosing faults: Circuit breaker failures can be caused by a variety of factors, such as poor contact and aging of internal components. Manual operation, relying solely on appearance and simple testing, makes it difficult to accurately determine the root cause of the fault, which can easily lead to misdiagnosis or omission, affecting the efficiency and effectiveness of subsequent repairs.

[0009] - Inability to obtain comprehensive data: Manual operation can only obtain superficial data at the time. It is impossible to collect and analyze the circuit breaker's current, voltage, temperature and other operating parameters in real time. It is difficult to grasp its performance change trend, which is not conducive to discovering potential problems in advance.

[0010] 3. Inefficiency;

[0011] - High labor costs: The aviation fuel distribution system is widely distributed and has a large number of circuit breakers. Manual operation requires regular inspections by dedicated personnel, which consumes a lot of manpower and time, increasing operating costs.

[0012] - Slow fault handling: After a fault is manually discovered, it must go through a series of processes such as reporting, coordinating with maintenance personnel, and then being handled on-site. This results in a long fault handling cycle. Prolonged power outages can affect the normal operation of aviation fuel business.

[0013] 4. Lack of remote monitoring capabilities;

[0014] - Inconvenient information transmission: During manual operation, on-site personnel need to return to the office or use other communication methods to transmit circuit breaker status information to relevant personnel. In emergency situations, it is difficult to report in a timely and accurate manner, which can easily lead to information delays and decision-making lags.

[0015] - Unable to remotely command operations: When an abnormal circuit breaker occurs and emergency operations are required, such as remote opening and closing, manual operation cannot achieve remote control and personnel must be present on site, which may miss the best time to handle the problem and expand the scope of the fault. Utility Model Content

[0016] The technical problem to be solved by the utility model is to provide a device for monitoring the state of an aviation fuel distribution circuit breaker, which can monitor the state of the aviation fuel distribution circuit breaker in real time.

[0017] In order to solve the above technical problems, the technical solution of the aviation fuel distribution circuit breaker status monitoring device of the utility model is:

[0018] It includes multiple monitoring branches 10, which are connected in parallel to form a monitoring circuit; the monitoring circuit and the data transmission circuit 20 form a loop; the monitoring branch 10 is provided with a photoelectric signal isolator 1, one end of the photoelectric signal isolator 1 is connected to the live wire end of the circuit breaker 2 of the aviation fuel distribution equipment; the other ends of the multiple photoelectric signal isolators 1 are integrated together and commonly connected to the neutral wire of the distribution cabinet; the data transmission circuit 20 is connected in series with a data transmission chip 21, a data processor 22 and a power supply chip 23; the data transmission circuit 20 is provided with a positive power supply terminal 11 and a negative power supply terminal 12, the positive power supply terminal 11 is connected to the power supply chip 23; the positive power supply terminal 11 and the negative power supply terminal 12 are respectively connected to the positive pole and negative pole of the external power supply.

[0019] In another embodiment, the live wire end of the circuit breaker 2 is connected to the live wire end of the power distribution cabinet, and the neutral wire end of the circuit breaker 2 is connected to the neutral wire of the power distribution cabinet.

[0020] In another embodiment, a circuit breaker indicator light 3 is provided on the monitoring branch 10 , and the circuit breaker indicator light 3 is connected in series with the photoelectric signal isolator 1 on the monitoring branch.

[0021] In another embodiment, the power chip 23 is connected to a power indicator light 24 .

[0022] In another embodiment, an alarm 4 is provided on the monitoring branch 10 , and the alarm 4 is connected in series with the photoelectric signal isolator 1 on the monitoring branch 10 .

[0023] In another embodiment, the data processor 22 is connected to the cloud storage 26 via the wireless network communication module 25 .

[0024] In another embodiment, the data processor 22 has a communication interface matching the data transmission chip 21 .

[0025] In another embodiment, the communication interface adopts 485 communication protocol.

[0026] In another embodiment, the data transmission chip 21 adopts a serial communication protocol.

[0027] In another embodiment, the data transmission chip 21 has a transmission distance of 0 to 1.2 km and a transmission rate of 9600 bps.

[0028] In another embodiment, the power consumption of the photoelectric signal isolator 1 is less than 1.2W, the working environment temperature is -10°C to 60°C, and the humidity is 5% to 95%.

[0029] In another embodiment, the external power supply provides a photoelectric isolation voltage of 2500V, a continuous pulse of 7000V, and a photoelectric surge of 600W.

[0030] In another embodiment, the number of monitoring branches 10 is 8.

[0031] The technical effects that can be achieved by the utility model are:

[0032] The utility model connects the photoelectric signal isolator with the live wire end of the circuit breaker of the aviation fuel distribution equipment, so as to continuously collect the status of the circuit breaker and realize real-time monitoring of the circuit breaker status.

[0033] The data processor of this utility model can quickly process and analyze the data collected by each photoelectric signal isolator, determine the open and closed status of the circuit breaker, and monitor whether the current and voltage data are abnormal. At the same time, the data processor has a data storage function, which can temporarily store monitoring data locally for a period of time to prevent loss or interruption during data transmission, and automatically upload the stored data after the network is restored.

[0034] The multiple photoelectric signal isolators of the utility model cooperate with the data processor to realize 24-hour uninterrupted and accurate collection and processing of circuit breaker status, current, and voltage data, and detect abnormalities such as overload in advance. The early warning accuracy rate exceeds 95%, which is difficult to achieve manually and can effectively prevent accidents.

[0035] This new system utilizes 485 communication and optimized network transmission, ensuring stable and rapid data transmission and real-time display on the simulation screen platform. Manual monitoring, on the other hand, suffers from lags, large errors, and lacks comprehensive, real-time control. This system also supports remote control and historical data query, facilitating management and reducing maintenance costs. It significantly improves the reliability and management efficiency of the aviation fuel distribution system, ensuring safe operation of the fuel depot. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Those skilled in the art will appreciate that the following description is merely illustrative of the principles of the present invention, which can be applied in a variety of ways to achieve many different alternative embodiments. These descriptions are intended only to illustrate the general principles of the teachings of the present invention and are not intended to limit the concepts of the present invention disclosed herein.

[0037] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the general description above and the detailed description of the drawings below, serve to explain the principles of the present invention.

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0039] Figure 1 It is a schematic diagram of the utility model of the aviation fuel distribution circuit breaker status monitoring device.

[0040] Description of reference numerals in the figures:

[0041] 1 is a photoelectric signal isolator, 2 is a circuit breaker,

[0042] 3 is the circuit breaker indicator light, 4 is the alarm,

[0043] 10 is the monitoring branch, 20 is the data transmission circuit,

[0044] 21 is a data transmission chip, 22 is a data processor,

[0045] 23 is the power chip, 24 is the power indicator light,

[0046] 25 is a wireless network communication module, 26 is a cloud storage,

[0047] 11 is the positive terminal of the power supply, and 12 is the negative terminal of the power supply. DETAILED DESCRIPTION

[0048] To further clarify the objectives, technical solutions, and advantages of the embodiments of the present invention, the technical solutions of the embodiments of the present invention will be described clearly and completely below, in conjunction with the accompanying drawings of the embodiments of the present invention. It should be understood that the described embodiments represent only a portion of the embodiments of the present invention, and not all of them. Based on the described embodiments of the present invention, all other embodiments derived by persons of ordinary skill in the art without inventive effort are within the scope of protection of the present invention. Unless otherwise defined, technical or scientific terms used herein should have the same meanings as those commonly understood by persons of ordinary skill in the art to which the present invention belongs. The terms "first," "second," and similar terms used herein do not denote any order, quantity, or importance; they are merely used to distinguish between different components. Terms such as "including" and similar expressions mean that the element or object preceding the term includes the elements or objects listed after the term, and their equivalents, without excluding other elements or objects. Terms such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0049] like Figure 1 As shown, the present invention is a device for monitoring the state of an aviation fuel distribution circuit breaker, which is arranged in a power distribution cabinet in a power distribution room. The device includes a plurality of monitoring branches 10. Each monitoring branch 10 is provided with a photoelectric signal isolator 1 (i.e., a photoelectric coupler). One end of the photoelectric signal isolator 1 is connected to the live wire end of the circuit breaker 2 of the aviation fuel distribution equipment. The other ends of the photoelectric signal isolators 1 are integrated together and connected to the neutral wire of the power distribution cabinet.

[0050] Connect the live wire end of each circuit breaker 2 to the live wire end of the power distribution cabinet;

[0051] The neutral line terminal of circuit breaker 2 of the aviation fuel distribution equipment is connected to the neutral line of the distribution cabinet;

[0052] Each monitoring branch 10 is provided with a circuit breaker indicator light 3, which is connected in series with the photoelectric signal isolator 1 on the monitoring branch. When the circuit breaker 2 on the monitoring branch 10 is electrically closed, the circuit breaker indicator light 3 on the monitoring branch 10 will light up.

[0053] Each monitoring branch 10 is provided with an alarm 4, which is connected in series with the photoelectric signal isolator 1 on the monitoring branch 10; when the circuit breaker 2 on the monitoring branch 10 is de-energized and opened, the alarm 4 on the monitoring branch 10 will flash;

[0054] The circuit breaker indicator light 3 is connected in parallel with the alarm 4;

[0055] Excellent, monitoring branch 10 is 8-way ( Figure 1 4-way is shown in the figure);

[0056] Multiple monitoring branches 10 are connected in parallel to form a monitoring circuit;

[0057] The monitoring circuit and the data transmission circuit 20 form a loop; the data transmission circuit 20 is connected in series with a data transmission chip 21, a data processor (CPU) 22, and a power supply chip 23. The data transmission circuit 20 is provided with a positive power supply terminal 11 and a negative power supply terminal 12. The positive power supply terminal 11 is connected to the power supply chip 23; the positive power supply terminal 11 and the negative power supply terminal 12 are respectively connected to the positive and negative poles of an external power supply; the power supply chip 23 is connected to a power indicator light 24;

[0058] The data processor 22 is connected to the cloud storage 26 via the wireless network communication module 25 to ensure the integrity and timeliness of the data;

[0059] Specifically, the data processor 22 has a communication interface that matches the data transmission chip 21 ; the communication interface adopts a 485 communication protocol to ensure that the data from each optoelectronic signal isolator 1 can be stably and efficiently transmitted to the data processor 22 .

[0060] Preferably, the external power supply provides a photoelectric isolation voltage of 2500V, a continuous 7000V pulse, and a photoelectric surge of 600W, and can provide 220V high voltage for 8 monitoring branches at the same time.

[0061] Preferably, the data transmission chip 21 adopts the Modbus RTU serial communication protocol, with a transmission distance of 0 to 1.2 km, a transmission rate of 9600 bps, 8 data bits, 1 stop bit, and no parity.

[0062] Preferably, the power consumption of the photoelectric signal isolator 1 is less than 1.2W, the working environment temperature is -10°C to 60°C, and the humidity is 5% to 95%.

[0063] The working principle of this utility model is as follows:

[0064] The external power supply provides power to each photoelectric signal isolator 1 through the positive power terminal 11 and the negative power terminal 12. The power chip 23 processes the power transmitted by the external power supply. When the transmitted power is normal, the power chip 23 sends a command to the power indicator light 24 to light up.

[0065] After receiving power, each photoelectric signal isolator 1 starts up and collects status data of each circuit breaker 2 of the aviation fuel distribution equipment in real time. The monitored data is then transmitted to the data processor 22 via the data transmission chip 21. The data processor 22 processes the data collected by each photoelectric signal isolator 1, determines the status of each circuit breaker 2 of the aviation fuel distribution equipment, and obtains circuit breaker status monitoring data. The data processor 22 transmits the circuit breaker status monitoring data to the cloud storage 26 via the 485 communication interface via the wireless network communication module 25. The cloud storage 26 receives the data of multiple photoelectric signal isolators 1, summarizes and organizes them, and then transmits the data to the simulation screen platform via a wired or wireless network.

[0066] If the status of one or more circuit breakers 2 is abnormal, the data processor 22 sends the generated abnormal instruction to the photoelectric signal isolator 1 of the monitoring branch where the circuit breaker is located through the data transmission chip 21. The photoelectric signal isolator 1 sends a disconnect instruction to the circuit breaker 2, causing the circuit breaker 2 to automatically open. At the same time, the data processor 22 sends the generated abnormal instruction to the alarm 4, and the alarm 4 activates the alarm after receiving the abnormal instruction.

[0067] The other end of each photoelectric signal isolator 1 of the present invention is commonly connected to the neutral line of the power distribution cabinet, which can effectively prevent the influence of external electromagnetic interference on the monitoring data, thereby ensuring the accuracy and stability of data collection.

[0068] Each photoelectric signal isolator of the utility model can monitor the status of 8 circuit breakers simultaneously without affecting each other.

[0069] Each monitoring branch of the present invention is respectively provided with a circuit breaker indicator light 3 and an alarm 4, which can reflect the status of the circuit breaker in real time and facilitate timely troubleshooting.

[0070] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A device for monitoring the status of an aviation fuel distribution circuit breaker, characterized in that: It includes multiple monitoring branches, which are connected in parallel to form a monitoring circuit; the monitoring circuit and the data transmission circuit form a loop; A photoelectric signal isolator is provided on the monitoring branch, one end of which is connected to the live wire end of the circuit breaker of the aviation fuel distribution equipment; the other ends of multiple photoelectric signal isolators are integrated together and connected to the neutral wire of the distribution cabinet; The data transmission circuit is connected in series with a data transmission chip, a data processor and a power supply chip; the data transmission circuit is provided with a positive power supply terminal and a negative power supply terminal, the positive power supply terminal is connected to the power supply chip; the positive power supply terminal and the negative power supply terminal are respectively connected to the positive pole and negative pole of the external power supply.

2. The aviation fuel distribution circuit breaker status monitoring device according to claim 1 is characterized in that: The live wire end of the circuit breaker is connected to the live wire end of the power distribution cabinet, and the neutral wire end of the circuit breaker is connected to the neutral wire of the power distribution cabinet.

3. The aviation fuel distribution circuit breaker status monitoring device according to claim 1, characterized in that: The monitoring branch is provided with a circuit breaker indicator light, which is connected in series with the photoelectric signal isolator on the monitoring branch.

4. The aviation fuel distribution circuit breaker status monitoring device according to claim 1 or 3, characterized in that: An alarm is provided on the monitoring branch, and the alarm is connected in series with the photoelectric signal isolator on the monitoring branch.

5. The aviation fuel distribution circuit breaker status monitoring device according to claim 1, characterized in that: The data processor is connected to the cloud storage via a wireless network communication module.

6. The aviation fuel distribution circuit breaker status monitoring device according to claim 1, characterized in that: The data processor has a communication interface that matches the data transmission chip.

7. The aviation fuel distribution circuit breaker status monitoring device according to claim 1, characterized in that: The data transmission chip has a transmission distance of 0 to 1.2 km and a transmission rate of 9600 bps.

8. The device for monitoring the state of an aviation fuel distribution circuit breaker according to claim 1, characterized in that: The power consumption of the photoelectric signal isolator is less than 1.2W, the working environment temperature is -10°C to 60°C, and the humidity is 5% to 95%.

9. The aviation fuel distribution circuit breaker status monitoring device according to claim 1, characterized in that: The external power supply provides a photoelectric isolation voltage of 2500V, a continuous pulse of 7000V, and a photoelectric surge of 600W.

10. The aviation fuel distribution circuit breaker status monitoring device according to claim 9, characterized in that: There are 8 monitoring branches.

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