CN110127082B - Four station guarantee comprehensive detection case groups in aviation - Google Patents
Four station guarantee comprehensive detection case groups in aviation Download PDFInfo
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- CN110127082B CN110127082B CN201910398119.1A CN201910398119A CN110127082B CN 110127082 B CN110127082 B CN 110127082B CN 201910398119 A CN201910398119 A CN 201910398119A CN 110127082 B CN110127082 B CN 110127082B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/60—Testing or inspecting aircraft components or systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The invention discloses an aviation four-station guarantee comprehensive detection box set which comprises a chassis and a box body, a gas detection system, a power supply detection system, a hydrazine fuel detection system, an electric control system and a data management system. The chassis and the box body are used for loading, protecting and transporting the detection module; the gas detection system is used for detecting gas dew point and gas leakage; the power supply detection system is used for detecting circuit insulation performance, grounding resistance, boosting conversion performance of the power supply vehicle, power supply quality and charging and discharging analysis of a storage battery; the hydrazine fuel detection system is used for detecting the leakage of the hydrazine fuel; the electric control system provides a power supply for the equipment in the box group; the data management system is used for collecting and managing detection data of different equipment, managing equipment information, detecting equipment information and maintaining management, diagnosing man-machine interaction faults, assisting, training and the like. The invention has the advantages of small volume, high integration level and convenient carrying, is mainly used for detecting an outfield medium and equipment and is convenient to use under the field condition.
Description
Technical Field
The invention relates to the field of detection equipment, in particular to an aviation four-station guarantee comprehensive detection box set.
Background
The four-station aviation outfield security project has many and high standard requirements, the existing instruments and equipment have different sizes, the detection method is backward, and the transportation and carrying of the outfield and the outfield are inconvenient; the existing detection equipment adopts single processing modes such as instant detection, instant printing and the like, has no systematic data, cannot carry out centralized processing and cannot provide data support for later-stage fault analysis; moreover, the input power of the existing detection equipment is various, and the continuous supply of the power cannot be effectively guaranteed under the existing outfield guarantee condition.
In summary, currently, there is no aviation four-station guarantee comprehensive detection box set with small size, high integration level and wide application range.
Disclosure of Invention
The invention discloses an aviation four-station guarantee comprehensive detection box set which is used for solving the defects in the prior art.
The invention is realized according to the following technical scheme:
an aviation four-station guarantee comprehensive detection box set comprises a chassis, a box body, a gas detection system, a power supply detection system, a hydrazine fuel detection system, an electrical control system and a data management system, wherein the gas detection system, the power supply detection system, the hydrazine fuel detection system, the electrical control system and the data management system are positioned in the box body; the gas detection system is used for gas dew point detection and gas leakage detection; the power supply detection system is used for detecting circuit insulation performance, grounding resistance, boosting conversion performance of the power supply vehicle, power supply quality and charging and discharging analysis of a storage battery; the hydrazine fuel detection system is used for detecting the leakage of hydrazine fuel; the electrical control system provides a power supply for the equipment in the box group; the data management system is used for collecting and managing detection data of different equipment, managing equipment information, detecting equipment information and maintaining management, diagnosing man-machine interaction faults, assisting and training.
Preferably, the gas detection system comprises a gas dew point detection module and a gas leakage detection module; the gas dew point detection module comprises a one-way valve, a pressure reducing valve, a flowmeter, a dew point meter and three sampling pipelines; the gas leakage detection module comprises an oxygen concentration detector and an ultrasonic leak detector; one sampling pipeline of the three sampling pipelines is used as a nitrogen sampling pipeline, the other sampling pipeline is used as an oxygen sampling pipeline, and the last sampling pipeline is used as a cold air sampling pipeline; the three sampling pipelines are respectively connected in series with a one-way valve, and the three sampling pipelines are converged to form a total gas transmission pipeline, and an oxygen concentration detector, a pressure reducing valve, an ultrasonic leak detector, a flowmeter and a dew point instrument are connected in the total gas transmission pipeline.
Preferably, the power supply detection system comprises a circuit insulation performance detection module, an equipment grounding resistance rapid detection module, a power supply vehicle boosting performance detection module, a power supply quality detection module and a storage battery detection module; the circuit insulation performance detection module comprises an insulation withstand voltage tester, realizes a full-automatic intelligent judgment function through setting of upper and lower limit values, can automatically identify abnormal states, has overvoltage, undervoltage and overcurrent protection, and provides sound and light alarm; the equipment grounding resistance rapid detection module comprises a grounding resistance tester used for rapidly detecting the grounding resistance value of the equipment.
Preferably, the power supply vehicle boosting performance detection module comprises a boosting conversion control box and a boosting load box;
the boost conversion control box comprises two groups of conversion control modules, and each group of conversion control modules comprises an aviation socket and a set of FPGA control system; in the detection process, the FPGA control system processes and analyzes the plug output voltage detected in real time. The boost load box can simulate the aircraft starting load after receiving the aircraft simulation starting signal received by the control system, can observe the voltages of the holes 1, 3 and 2 and 3 through the FPGA, and can inspect the load carrying capacity of the power supply vehicle, comprehensively judge whether the boost conversion function of the power supply vehicle is normal or not, and provide a test means for verification of the boost conversion function of the power supply vehicle and overhaul of components.
Preferably, the power quality detection module comprises a test load module, an electric signal acquisition system, a power input socket and a control system; the test load module comprises a 115V/200V three-phase alternating current power supply test module, a 28.5V direct current power supply test module and a 270V direct current power supply test module; the electric signal acquisition system comprises an alternating current voltage sensor, an alternating current sensor, a frequency sensor, a direct current voltage sensor, a direct current sensor and an A/D conversion module, and is used for acquiring signals, processing the signals by the A/D conversion module and then sending the signals to an industrial control display, and calculating, analyzing and displaying acquisition parameters; the power input socket comprises a medium-frequency alternating current 115V/200V socket, a direct current 28.5V socket, a direct current 270V socket and a 28/57V direct current boosting socket; the control system comprises a military alternating current aviation contactor and a military direct current aviation contactor and is used for controlling the increase and decrease conversion of each detection load.
Preferably, the hydrazine fuel detection system adopts a hydrazine fuel leakage detector and adopts a hydrazine steam conductive polymer film hypersensitivity chemical sensor to detect the concentration of hydrazine.
Preferably, the data management system comprises an industrial touch screen all-in-one machine, a printer and a portable data acquisition instrument; the data information management system software is carried on the industrial personal computer and the portable data acquisition instrument, and through the system, different equipment detection data collection management, equipment information management, detection equipment information and maintenance management, man-machine interaction fault diagnosis, assistance and training can be achieved.
Preferably, the power supply comprises a power supply conversion circuit, a charging circuit, an FPGA control system, a power frequency power supply input socket and a plug; the power supply conversion circuit comprises an input power supply switching circuit and an alternating current-direct current conversion circuit, the input power supply switching circuit comprises a commercial power switching circuit breaker and a storage battery switching circuit breaker, and power supplies of different systems are controlled and selected through a power supply switching switch S1; the alternating current-direct current conversion circuit comprises a direct current 24V-alternating current 220V conversion module DA, an alternating current 220V-24V conversion module DA1 and an alternating current 220V-24V conversion module DA; the method comprises the following steps that a storage battery 24V direct-current power supply is converted into a 220V50Hz power frequency power supply through a DA (digital-to-analog) to supply power for an alternating-current input device, an AD1 converts an input power frequency power supply into a 24V direct-current power supply to charge the storage battery, and an AD2 converts the DA converted power frequency power supply or the input power frequency power supply into a 24V direct-current power supply to provide an input power supply for an FPGA (field programmable gate array) system;
the charging circuit comprises a storage battery charging circuit, a hydrazine fuel leakage detector charging circuit and an ultrasonic gas leakage detector charging circuit; the switch S2 is controlled to be closed through an I/O interface of the FPGA control system, and the K2 relay acts, so that the AD1 charges the storage battery.
Preferably, the chassis adopts a self-propelled trailer chassis and has two modes of traction running and self-propelled running;
the storage batteries are arranged on the left side and the right side of the middle of the chassis frame, the front end and the rear end of the chassis frame are respectively provided with two illuminating lamps, the two sides of the rear end are provided with a steering lamp and a brake lamp, and four corners are provided with the spin locks and the hanging rings.
Preferably, the left side, the right side and the rear side of the box body are respectively provided with a shutter, and the rear side plate adopts a bolt fixing mode, so that the integral disassembly and assembly can be realized; the front vertical surface of the box body is provided with various power quality detection interfaces and an electrical operation panel, the left side surface of the box body is a power detection system storage area, the right side surface of the box body is a gas detection system and hydrazine fuel system storage operation area, and the left side and the right side of the box body are provided with rolling doors; the box body is internally designed with a split cabinet type structure, each sub-instrument is placed and internally designed with a limit hole, vibration generated in the box group carrying process is effectively reduced, the outer side of the box group is designed to be of a pull-out drawer structure, and a drawer sliding rail has limiting and locking functions.
The invention has the beneficial effects that:
the invention has the advantages of small volume, high integration level and convenient carrying, is mainly used for detecting an external field medium and equipment and is convenient to use under the field condition.
Drawings
FIG. 1 is a system composition diagram of the present invention.
Fig. 2 is a schematic diagram of the power supply system of the present invention.
Fig. 3 is a layout view of the inside of the case of the present invention.
In the figure: 1. sampling pipeline operating panel, 2, dew point instrument, 3, sampling pipeline interface, 4, oxygen concentration and ultrasonic leakage detector, 5, oxygen specialized tool, 6, hydrazine fuel leakage detector.
FIG. 4 is a gas dew point sensing schematic of the present invention.
Fig. 5 is a block diagram of the working principle of the insulation performance detection of the equipment circuit of the present invention.
Fig. 6 is a schematic diagram of the fast detection and measurement principle of the equipment grounding of the present invention.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the comprehensive detection box set for aviation four-station security comprises a chassis, a box body, a gas detection system, a power detection system, a hydrazine fuel detection system, an electrical control system and a data management system, wherein the gas detection system, the power detection system, the hydrazine fuel detection system, the electrical control system and the data management system are located in the box body.
The gas detection system mainly comprises a gas dew point detection module, a gas leakage detection module and a special oxygen tool and is used for realizing the functions of detecting dew points of oxygen, nitrogen and cold air in and out fields and detecting gas leakage of four-station inflating equipment.
The power supply detection system mainly comprises an equipment circuit insulation performance detection module, an equipment grounding resistance rapid detection module, a power supply vehicle boosting performance detection module, a power supply quality detection module and a storage battery detection module. The power supply detection system can realize the rapid detection of the circuit insulation performance and the grounding resistance of the four-station equipment in the external field and the detection of the boosting conversion performance of the power supply vehicle, and can carry out the internal and external field detection on the power supply quality of the three-generation and above ground power supply guarantee equipment.
The hydrazine fuel detection system mainly comprises a hydrazine fuel detector and auxiliary accessories and is used for realizing the leakage detection function of the hydrazine equipment pipeline and the storage area thereof.
The data processing system mainly comprises an industrial personal computer, a printer and a portable data acquisition instrument, and through the data processing system, operators can manage equipment information and inquire and process box group faults, and can input information of equipment detection, maintenance and the like in an operation field in real time and transmit data to the detection terminal for unified management, storage and printing.
The electric control system mainly comprises a power supply conversion circuit, a charging circuit, an FPGA control system, a power frequency power supply input socket and plug and an AC-DC power supply conversion module, and provides a power supply for the equipment in the box group.
Specific embodiments of the chassis and the box, and the gas detection system, the power detection system, the hydrazine fuel detection system, the electrical control system and the data management system which are located in the box are given below.
The chassis selects an LD5020TM type self-propelled trailer chassis and has two modes of traction running and self-propelled running. The self-running adopts a motor driving mode, the running speed is not less than 5km/h, and the forward movement, the backward movement and the steering of the vehicle are controlled by a wired control box. The traction running can be realized through a chassis traction rod, the speed is not less than 20km/h, the rubber torsion bar is designed for damping through the traction rod, and manual parking braking and rubber torsion bar service braking are adopted. The storage batteries are arranged on the left side and the right side of the middle of the frame of the chassis, and the capacity of the batteries can meet the requirement of 5km driving mileage. Two illuminating lamps are respectively arranged at the front end and the rear end of the chassis frame and can be used for driving at night, and steering lamps and brake lamps are arranged on two sides of the rear end. The four corners design is equipped with twistlock and rings, realizes separation, reorganization through the corner fittings cooperation with the box, realizes the holistic hoist and mount transportation of equipment through chassis four corners rings.
The box body is made of a steel framework iron skin shelter type, and military green finish paint is sprayed on the surface of the box body, wherein the external dimension is 2450mm multiplied by 1200mm multiplied by 1500mm. The box body is octagonal and welded by adopting standard corner fittings, mounting fixing holes and hoisting holes are formed in the box body, and standard forklift jacks are designed at the bottom edges of the long side faces of the box body, so that the box group can be conveniently hoisted and mounted. The corner fittings protrude out of the box body with four sides by 5mm, so that the situation that the box body is collided when the chassis is hoisted and replaced can be guaranteed. The shutters are respectively arranged on the left side and the right side of the box body and on the rear side of the box body, and are used as an air inlet and an air outlet of the load box, the rear side plate is fixed by bolts, the whole assembly and disassembly can be realized, and the maintenance of the load box is facilitated. The front vertical surface of the box body is provided with various power quality detection interfaces and an electric operation panel. The left side surface of the box body is a power supply detection system storage area, the right side surface of the box body is a gas detection system and hydrazine fuel system storage operation area, and the left side surface and the right side surface of the box body are provided with rolling doors. Two 4kg fire extinguishers are designed and arranged in the box group and are placed at the outer side of the inner cabinet, so that the fire extinguishers are convenient for people to take. The box body is internally designed with a split cabinet type structure, each sub-instrument is placed and internally designed with a limit hole, vibration and the like generated in the carrying process of the box group are effectively reduced, the outer side of the box group is designed to be of a pull-out drawer structure, and a drawer slide rail has limiting and locking functions. The color of the inner cabinet body is designed to be computer gray, the color identification of the power supply system is red, the color identification of the gas detection system is sky blue, and the color identification of the hydrazine fuel detection system is orange. The manual opening and closing type rain-proof and wind-proof sand shutter is adopted, when a load operates, the shutter can be manually opened, when the load does not operate, the shutter is closed, and rain-proof and wind-proof sand is effectively prevented.
The box body sequentially comprises a load box, a power supply vehicle boosting conversion performance detection device, a grounding resistance detection device, a withstand voltage tester, a hydrazine fuel leakage detector 6, an oxygen special tool 5, an oxygen concentration and ultrasonic leak detector 4, a sampling pressure reduction device, a sampling pipeline interface 3, a dew-point meter 2, a sampling pipeline operation panel 1, a power supply quality detector, a storage battery and an electrical control operation panel from back to front, and is shown in figure 3.
As shown in FIG. 4, the gas detection system mainly comprises a gas dew point detection module and a gas leakage detection module, which are arranged at the left side of the box body, and an aluminum alloy packing box is arranged outside each sub-module and is fixed in the drawer according to the area.
Further, the gas dew point detection module comprises: the device comprises a check valve, an R41 type pressure reducing valve, a flowmeter, an HKT-817 type table dew point instrument, a gas pressure reducing device and three sampling pipelines. The dew point rapid detection device is used for rapid detection of dew points of oxygen, nitrogen and cold air with the temperature ranging from-100 ℃ to +20 ℃ and the highest initial pressure of 35MPa, and a sampling pipeline is connected with gas equipment and a detection box set.
Further, the gas leak detection module includes: an NPT-40 model oxygen concentration detector, and an ILeak200 model ultrasonic leak detector. The detection of the leakage of nitrogen and oxygen equipment is mainly completed by detecting the oxygen concentration in the equipment or the working environment, if the oxygen concentration is higher or lower than the normal range, an ultrasonic leak detector can be adopted to determine the leakage point so as to ensure personnel to quickly repair, and the detection of the leakage of cold air can be directly completed by the ultrasonic leak detector.
The concrete connection is as follows: one sampling pipeline of the three sampling pipelines is used as a nitrogen sampling pipeline, the other sampling pipeline is used as an oxygen sampling pipeline, and the last sampling pipeline is used as a cold air sampling pipeline; the three sampling pipelines are respectively connected in series with a one-way valve, and the three sampling pipelines are converged to form a total gas transmission pipeline, and an oxygen concentration detector, a pressure reducing valve, an ultrasonic leak detector, a flowmeter and a dew point instrument are connected in the total gas transmission pipeline.
The power supply detection system mainly comprises a circuit insulation performance rapid detection module, a grounding resistance rapid detection module, a power supply vehicle boosting conversion performance detection module, a power supply quality detection module and a storage battery charging and discharging analysis module. The device insulation resistance rapid detection, the device grounding resistance rapid detection, the power supply vehicle boost conversion performance detection and the airplane power supply guarantee power supply quality detection can be realized.
Furthermore, the quick detection module for the circuit insulation performance mainly has the functions of realizing quick detection of the insulation resistance of equipment and detecting the voltage resistance of the equipment, and mainly comprises an AR4105 type and accessories thereof. The insulation withstand voltage tester system takes the DSP microprocessor as a control core, can quickly realize the detection of measuring the insulation resistance and the voltage resistance of tested equipment, realizes a full-automatic intelligent judgment function by setting upper and lower limit values, can automatically identify abnormal states, has overvoltage, undervoltage and overcurrent protection, provides sound and light alarm, adopts various anti-interference measures and SPWM technology, and realizes high-voltage contactless regulation.
Furthermore, the rapid detection module for the grounding resistance comprises an EN1614D type grounding resistance tester and accessories thereof. The main function is to quickly detect the grounding resistance of the equipment. The ground resistance tester can measure the ground resistance within a maximum range of 300k omega, meets the index requirement, can detect the ground resistance without a ground pile on line and quickly measure the resistance of a ground loop, has the functions of multi-frequency excitation and automatic frequency selection, can automatically identify interference and select proper measuring frequency, minimizes the influence of the interference, has the functions of keeping and storing 100 groups of data, can upload the data to a PC (personal computer) for display and analysis, and outputs a test report. The system has good human-computer interaction function, is simple and convenient to operate, can realize the function of alarming the limit value and the function of automatic shutdown, and ensures the safety and the reliability of the use of equipment.
Furthermore, the power supply vehicle boost conversion performance quick detection module mainly has the function of quickly detecting whether the 28V/57V boost conversion function of each type of power supply vehicle is normal. The module comprises a boost conversion control box and a boost load box. The boost conversion control box comprises two groups of conversion control modules, and each group of conversion control modules comprises 1 PJ800A military aviation socket and one set of FPGA control system. The FPGA control system mainboard adopts FPGA-EP3C40-V2.2 and is used for collecting I/O signals and performing digital quantity/analog quantity conversion, and the main control CPU is EP3C40 and is used for operation processing of the system. In the detection process, the FPGA control system processes and analyzes the plug output voltage detected in real time. Meanwhile, the system integrates the functions of display, control, data storage, data printing, functional relay switching and the like of an insulation withstand voltage tester, a desk-top precision dew point meter and a boost conversion functional test module, and man-machine interaction is realized. The boost load box can simulate the aircraft starting load after receiving the aircraft simulation starting signal received by the control system, can observe the voltages of the holes 1, 3 and 2 and 3 through the FPGA, and can inspect the load carrying capacity of the power supply vehicle, comprehensively judge whether the boost conversion function of the power supply vehicle is normal or not, and provide a test means for verification of the boost conversion function of the power supply vehicle and overhaul of components. The load box is internally provided with power modules, the load power modules adopt 28V40A and share 40 power modules, and the maximum capacity can reach 1600A.
Furthermore, the power quality detection module mainly comprises a test load module, an electric signal acquisition system, a power input socket and a control system. The test function of 115V/200V three-phase alternating current, 28.5V direct current power supply and 270V direct current power supply can be mainly realized.
The test load module mainly comprises a 115V/200V three-phase alternating-current power supply test module, a 28.5V direct-current power supply test module and a 270V direct-current power supply test module. The electric signal acquisition system mainly comprises an alternating current voltage sensor, an alternating current sensor, a frequency sensor, a direct current voltage sensor, a direct current sensor, an A/D conversion module and the like, and is used for acquiring signals, processing the signals by the A/D conversion module and then sending the signals to an industrial control display, and calculating, analyzing and displaying acquisition parameters. The power input socket mainly comprises a medium-frequency alternating current 115V/200V socket, a direct current 28.5V socket, a direct current 270V socket and a 28/57V direct current boosting socket. The control system mainly comprises a military alternating current aviation contactor and a military direct current aviation contactor and is used for controlling the increase and decrease conversion of each detection load.
Furthermore, the storage battery charging and discharging analysis module mainly carries out storage battery maintenance work such as charging, discharging and activating on the 7-HK-182 (7-HKA-182) aviation storage battery. The module has three working modes of a discharging mode, a charging mode and an activating mode, can perform charging and discharging detection on a single battery on line, can set working parameters such as voltage, current, working time and capacity, can accurately measure the voltage, internal resistance, capacity, charging and discharging current and the like of the battery, can import measured data into a computer through a USB flash disk, and can print and output an activating curve and a data report.
An LB-LA1000 type hydrazine fuel leakage detector is selected for a hydrazine fuel detection system, a hydrazine steam conductive polymer film hypersensitive chemical sensor is adopted for hydrazine concentration detection, the detection precision is high, the reaction is sensitive and rapid, a micro sampling pump is designed in the hydrazine fuel detection system, personnel can place a gas sampling probe in an environment needing to be detected, the maximum sampling distance can reach 10m, and the harm of toxic gas to the personnel can be effectively avoided. The instrument is designed with a self-checking function and a zero point calibration function, has a temperature and pressure compensation function, realizes compensation of gas concentration under different temperature and pressure environments, and can effectively ensure accuracy of gas detection data.
As shown in fig. 2, the electrical control system provides a power supply for the devices in the box set, and has the functions of circuit switching, protection, power distribution, data centralized control, device and storage battery charging, and the like, and mainly includes a power conversion circuit, a charging circuit, an FPGA control system, a power frequency power input socket and plug, and an ac-dc power conversion module.
Furthermore, the power conversion circuit comprises an input power switching circuit and an ac-dc conversion circuit. Q1 is the commercial power switches over the circuit breaker, and Q2 is the battery switches over the circuit breaker, under the general condition, guarantee two circuit breaker closure can, through the power supply change over switch S1 control selection different system' S power. The alternating current-direct current conversion circuit mainly comprises a direct current 24V-alternating current 220V conversion module DA, an alternating current 220V-24V conversion module DA1 and an alternating current 220V-24V conversion module DA; the storage battery 24V direct-current power supply is converted into a 220V50Hz power frequency power supply through the DA to supply power for the alternating-current input equipment, the AD1 converts the input power frequency power supply into the 24V direct-current power supply to charge the storage battery, and the AD2 converts the DA converted power frequency power supply or the input power frequency power supply into the 24V direct-current power supply to provide an input power supply for the FPGA system.
Further, the charging circuit includes a battery charging circuit and a charging circuit for other devices (a hydrazine fuel leakage detector, an ultrasonic gas leakage detector). Under the condition of power frequency power supply access, Q5 is closed, the switch S2 is closed through the I/O interface of the FPGA control system, and the K2 relay acts, so that the AD1 charges the storage battery. A220V 50Hz power frequency electric output socket is arranged in the circuit, and a charging power supply can be provided for equipment such as a hydrazine fuel leakage detector, an ultrasonic gas leakage detector and the like.
Furthermore, the FPGA control system is a core part of the whole control system and realizes the functions of display, control, printing and fault alarm. The system controls the work of the insulation withstand voltage test module, the table type precision dew point instrument and the power supply vehicle boosting detection system through the RS232 communication bus, stores test data, controls S2 through the I/O interface and achieves the function of charging the storage battery.
Furthermore, a 15A three-core sparkless explosion-proof electric connector is adopted for the power frequency power supply input socket and the plug, the explosion-proof grade is EXIAIICT4Gc, the IP grade is IP54, and the high protection grade and the high safety performance are achieved. The storage battery pack is formed by connecting 3 storage batteries with the capacity of 150Ah24V in parallel, and the use requirement of the system can be met.
Furthermore, the alternating current-direct current power supply conversion module AD1 adopts a 1.1kW power special converter, and has the main function of converting a power frequency power supply into a 24V direct current power supply to charge a storage battery pack. The AD2 adopts a 150W power special converter, and mainly provides a 24V power supply for the FPGA control system. The DC-AC power supply conversion module DA adopts a 1kW power special converter and mainly has the function of converting a 24V DC power supply provided by a storage battery pack into a 220V50Hz power frequency power supply used by an insulation and voltage resistance test module, a desk-top precision dew-point meter and a charging power supply.
Further, the design of electrical control cabinet is installed in box right side top, mainly used places each electric and control element, and cabinet body door adopts the design of panel integrated form, places knob, pilot lamp, the reserve socket that charges etc. that need operate, and knob and pilot lamp below design have the name sign, prevent effectively that personnel from the maloperation.
The data information management system mainly comprises an LG530-CK type 15.6-inch industrial touch screen all-in-one machine, an HP-2132 type printer, a portable data acquisition instrument and the like, wherein software of the data information management system is loaded on an industrial personal computer and the portable data acquisition instrument, and functions of detection data collection management, equipment information detection and maintenance management, man-machine interaction fault diagnosis, assistance, training and the like of different equipment can be realized through the system.
In a gas detection system, gas in a ground gas cylinder or a gas cylinder on a gas-filled vehicle is generally sampled and detected, the highest pressure of the gas is 35MPa (rated pressure of the gas cylinder of a high-pressure gas-filled vehicle), the lowest pressure of the gas is 15MPa, high-pressure gas (nitrogen, oxygen or cold gas) respectively flows through a check valve (DX 1, DX2 or DX 3), is reduced to a specified pressure through a pressure reducing valve (JY 1), then flows through a dew point instrument, and is exhausted after the moisture content of the gas is tested. The dew-point meter uses hydrophilic material or hydrophobic material as medium to form a capacitor or a resistor, after the gas containing water flows through, the dielectric constant or conductivity changes correspondingly, and the capacitance or resistance value at that time is measured to obtain the water content value of the gas.
As shown in fig. 4, the sampled gas outputs a corresponding voltage signal after sensing the oxygen concentration of the measured gas by the oxygen sensor, and the corresponding voltage signal is processed to be converted into a concentration value, so as to realize the function of detecting the leakage of oxygen and nitrogen; the gas turbulence phenomenon is generated when the sampled gas passes through the leakage hole, the high-frequency noise is generated due to the turbulence phenomenon, and after the leakage signal is detected by the sensor, the leakage signal is converted into an audio signal which can be heard by human ears, so that the gas leakage inspection is realized.
The equipment circuit insulation performance detection comprises an equipment insulation resistance test and an equipment voltage resistance test. The insulation resistance test mainly measures the resistance between an input live wire and a shell and between an output live wire and the shell of the device. And (3) equipment pressure resistance test: the voltage-withstanding test is mainly to apply a specified voltage between the live wire and the casing, and to measure the leakage current therebetween and compare the measured current with a set value to obtain a conclusion about whether the voltage is qualified or not. Using a voltage withstand tester, AC2000V/50Hz voltage was applied to ground at the input, and AC1500V/50Hz voltage was applied to ground at the output for 1min.
As shown in fig. 5, the microprocessor of the FPGA core is used as a control core to complete management of a/D conversion, output control, data processing, screen display, key processing, serial communication, and the like. The system generates SPWM signals by an FPGA processor, the SPWM signals are driven by a high-power MOS tube and then generate 50Hz or 60Hz sine waves by a filter circuit, and the sine waves generate source output signals of withstand voltage, grounding (32A) and insulation test by a transformer. The source output signal and the measured voltage or current signal are sampled and measured by the voltage and current sensors, the obtained numerical value enters the FPGA processor for operation after passing through the A/D converter, judgment is made, the conditions of 'test passing' or 'test failure' and the like are judged, and the detection result is displayed on the LCD.
In the detection of the grounding resistance, as shown in fig. 6, a DC/AC converter inside the grounding resistance measuring instrument converts direct current into alternating current with low frequency and constant current, the alternating current passes through an auxiliary grounding electrode and a detected object to form a loop, an alternating current voltage drop is generated on the detected object, the alternating current voltage drop is sent to an alternating current amplifier through the auxiliary grounding electrode for amplification, and the alternating current voltage drop is sent to a meter head through detection. The system adopts a rodless measurement method to measure the grounding resistance of the equipment: voltage clamps and current clamps, the clamps being on the equipment under test ground and being spaced 20cm apart from each other. And selecting a proper gear, pressing 'TEST' for testing, and displaying the resistance value of the grounding resistor by an LCD.
In the step-up conversion performance rapid detection, in the first stage, a PJD-800HT plug of a detected power supply vehicle is inserted into a PJ800A, an analog signal of 'airplane switch-on master switch' is sent out, namely, a No. 6 plug control line is in short connection with a 'minus' hole, at the moment, the power supply vehicle step-up conversion device executes corresponding actions, and whether output voltages of output ends of 1, 3, 2 and 3 of the conversion device are 28.5V +/-1.5V or not is detected. If the voltage is qualified, the subsequent detection is continued, otherwise, a fault alarm signal is sent out. And in the second stage, after the first stage is detected to be qualified, an airplane starting analog signal is sent by using an airplane starting analog key, namely, positive electricity is sent to the No. 4 control line, at the moment, the power supply vehicle boost conversion device executes corresponding actions, the voltage between the plugs 1, 3, 2 and 3 is detected, the voltage between the plugs 1 and 3 is still kept at 28.5V, and the voltage between the plugs 2 and 3 is converted into a 57V power supply. If the voltage meets the requirement, the boost conversion device works normally, otherwise, a fault alarm signal is sent out.
In a hydrazine fuel detection system, the hydrazine fuel leakage is detected by strictly monitoring and controlling the use of hydrazine equipment and the concentration of hydrazine fuel in the surrounding environment. The hydrazine fuel leakage detector adopts a hydrazine steam conductive polymer film hypersensitivity chemical sensor, because the electrolyte of the hydrazine fuel leakage detector is solid, the conductive polymer films such as a polytetrafluoroethylene sulfonate cation exchange membrane and the like are used as supporting electrolyte, the concentration of the gas to be detected is converted into an electrolytic current signal through oxidation or reduction reaction, the electrolytic current amplitude is measured to obtain a corresponding concentration value, and when the concentration value reaches an alarm set value, the detector immediately carries out alarm processing.
The above-mentioned embodiments only express one embodiment of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit and principle of the present invention, and these changes and modifications are within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. The utility model provides a four station guarantee comprehensive testing case groups in aviation which characterized in that: the device comprises a chassis, a box body, a gas detection system, a power supply detection system, a hydrazine fuel detection system, an electrical control system and a data management system, wherein the gas detection system, the power supply detection system, the hydrazine fuel detection system, the electrical control system and the data management system are positioned in the box body;
the gas detection system is used for gas dew point detection and gas leakage detection; the power supply detection system is used for detecting circuit insulation performance, grounding resistance, boosting conversion performance of the power supply vehicle, power supply quality and charging and discharging analysis of a storage battery; the hydrazine fuel detection system is used for detecting the leakage of hydrazine fuel; the electrical control system provides a power supply for the equipment in the box group; the data management system is used for collecting and managing detection data of different equipment, managing equipment information, detecting equipment information and maintaining management, diagnosing man-machine interaction faults, helping and training;
the gas detection system comprises a gas dew point detection module and a gas leakage detection module;
the gas dew point detection module comprises a one-way valve, a pressure reducing valve, a flowmeter, a dew point meter and three sampling pipelines; the gas leakage detection module comprises an oxygen concentration detector and an ultrasonic leak detector;
one sampling pipeline of the three sampling pipelines is used as a nitrogen sampling pipeline, the other sampling pipeline is used as an oxygen sampling pipeline, and the last sampling pipeline is used as a cold air sampling pipeline;
the three sampling pipelines are respectively connected in series with a one-way valve, and the three sampling pipelines are converged to form a total gas transmission pipeline, and an oxygen concentration detector, a pressure reducing valve, an ultrasonic leak detector, a flowmeter and a dew point instrument are connected in the total gas transmission pipeline.
2. The aerial four-station guarantee comprehensive detection box set as claimed in claim 1, wherein: the power supply detection system comprises a circuit insulation performance detection module, an equipment grounding resistance rapid detection module, a power supply vehicle boosting performance detection module, a power supply quality detection module and a storage battery detection module;
the circuit insulation performance detection module comprises an insulation withstand voltage tester, realizes a full-automatic intelligent judgment function through upper and lower limit value setting, can automatically identify abnormal states, has overvoltage, undervoltage and overcurrent protection, and provides sound and light alarm;
the equipment grounding resistance rapid detection module comprises a grounding resistance tester used for rapidly detecting the grounding resistance value of the equipment.
3. The aerial four-station guarantee comprehensive detection box set as claimed in claim 2, wherein: the power supply vehicle boosting performance detection module comprises a boosting conversion control box and a boosting load box;
the boost conversion control box comprises two groups of conversion control modules, and each group of conversion control modules comprises an aviation socket and a set of FPGA control system;
in the detection process, the FPGA control system processes and analyzes the plug output voltage detected in real time, the voltage boosting load box can simulate the aircraft starting load after receiving the aircraft simulation starting signal received by the control system, the voltages of the holes 1, 3, 2 and 3 can be observed through the FPGA, the load carrying capacity of the power supply vehicle is checked, whether the voltage boosting conversion function of the power supply vehicle is normal or not is comprehensively judged, and a test means is provided for verifying the voltage boosting conversion function of the power supply vehicle and overhauling components.
4. The aerial four-station support comprehensive detection box set as claimed in claim 2, wherein: the power quality detection module comprises a test load module, an electric signal acquisition system, a power input socket and a control system;
the test load module comprises a 115V/200V three-phase alternating current power supply test module, a 28.5V direct current power supply test module and a 270V direct current power supply test module; the electric signal acquisition system comprises an alternating current voltage sensor, an alternating current sensor, a frequency sensor, a direct current voltage sensor, a direct current sensor and an A/D conversion module, and is used for acquiring signals, processing the signals by the A/D conversion module and then sending the signals to an industrial control display, and calculating, analyzing and displaying acquisition parameters;
the power input socket comprises a medium-frequency alternating current 115V/200V socket, a direct current 28.5V socket, a direct current 270V socket and a 28/57V direct current boosting socket;
the control system comprises a military alternating current aviation contactor and a military direct current aviation contactor and is used for controlling the increase and decrease conversion of each detection load.
5. The aerial four-station guarantee comprehensive detection box set as claimed in claim 1, wherein: the hydrazine fuel detection system adopts a hydrazine fuel leakage detector and adopts a hydrazine steam conductive polymer film hypersensitive chemical sensor to detect the concentration of hydrazine.
6. The aerial four-station guarantee comprehensive detection box set as claimed in claim 1, wherein: the data management system comprises an industrial touch screen all-in-one machine, a printer and a portable data acquisition instrument; the data information management system software is loaded on the industrial personal computer and the portable data acquisition instrument, and through the system, different equipment detection data collection management, equipment information management, detection equipment information and maintenance management, man-machine interaction fault diagnosis, assistance and training can be realized.
7. The aerial four-station support comprehensive detection box set as claimed in claim 1, wherein:
the electric control system comprises a power supply conversion circuit, a charging circuit, an FPGA control system, a power frequency power supply input socket and a plug;
the power supply conversion circuit comprises an input power supply switching circuit and an alternating current-direct current conversion circuit, the input power supply switching circuit comprises a commercial power switching circuit breaker and a storage battery switching circuit breaker, and power supplies of different systems are controlled and selected through a power supply switching switch S1; the alternating current-direct current conversion circuit comprises a direct current 24V-alternating current 220V conversion module DA, an alternating current 220V-24V conversion module DA1 and an alternating current 220V-24V conversion module DA; the method comprises the steps that 24V direct-current power supply of a storage battery is converted into 220V50Hz power frequency power supply through a DA (digital-to-analog) to supply power to alternating-current input equipment, an AD1 converts the input power frequency power supply into 24V direct-current power supply to charge the storage battery, and an AD2 converts the DA converted power frequency power supply or the input power frequency power supply into 24V direct-current power supply to provide input power supply for an FPGA (field programmable gate array) system;
the charging circuit comprises a storage battery charging circuit, a hydrazine fuel leakage detector charging circuit and an ultrasonic gas leakage detector charging circuit; the switch S2 is controlled to be closed through an I/O interface of the FPGA control system, and the K2 relay acts, so that the AD1 charges the storage battery.
8. The aerial four-station support comprehensive detection box set as claimed in claim 1, wherein: the chassis adopts a self-propelled trailer chassis and has two modes of traction running and self-propelled running;
the storage batteries are arranged on the left side and the right side of the middle of the chassis frame, the front end and the rear end of the chassis frame are respectively provided with two illuminating lamps, the two sides of the rear end are provided with a steering lamp and a brake lamp, and four corners are provided with the spin locks and the hanging rings.
9. The aerial four-station guarantee comprehensive detection box set as claimed in claim 1, wherein: the left side, the right side and the rear side of the box body are respectively provided with a shutter, and the rear side plate adopts a bolt fixing mode, so that the integral assembly and disassembly can be realized;
the front vertical surface of the box body is provided with various power supply quality detection interfaces and an electrical operation panel, the left side surface of the box body is a power supply detection system storage area, the right side surface of the box body is a gas detection system and hydrazine fuel system storage operation area, and the left side surface and the right side surface of the box body are provided with rolling doors;
the box body is internally designed with a split cabinet type structure, each sub-instrument is placed and internally designed with a limit hole, vibration generated in the box group carrying process is effectively reduced, the outer side of the box group is designed to be of a pull-out drawer structure, and a drawer sliding rail has limiting and locking functions.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435399A (en) * | 2010-08-31 | 2012-05-02 | 通用电气公司 | Method and system to detect and measure piping fuel leak |
| CN102589860A (en) * | 2012-01-09 | 2012-07-18 | 中国人民解放军海军航空工程学院青岛分院 | Integrated testing system for aviation fuel accessories |
| CN205594142U (en) * | 2016-03-11 | 2016-09-21 | 常州博能新能源有限公司 | Fuel cell detects control system |
| CN205982219U (en) * | 2016-07-29 | 2017-02-22 | 广州市霆检检测技术有限公司 | Device is surveyed with portable empty gas detection in public place |
| CN206249305U (en) * | 2016-11-11 | 2017-06-13 | 中国人民解放军空军勤务学院 | A kind of parameter acquisition re-recording system |
| CN206313433U (en) * | 2016-12-01 | 2017-07-07 | 陈晓萍 | Intelligent wire means and its system |
| CN107748194A (en) * | 2017-09-08 | 2018-03-02 | 中国飞行试验研究院 | Aircraft fuel tank oxygen concentration Airborne Testing System and method based on electrochemical principle |
| CN108627203A (en) * | 2018-08-23 | 2018-10-09 | 四川多成电力工程安装有限责任公司 | Comprehensive detection system based on transformer monitoring |
| CN109358250A (en) * | 2018-10-26 | 2019-02-19 | 中国人民解放军空军勤务学院 | The quick detection device software of supply vehicle boost conversion and the quick detection device of boost conversion |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10093232B2 (en) * | 2015-09-16 | 2018-10-09 | Truck-Lite Co., Llc | Telematics road ready system |
-
2019
- 2019-05-14 CN CN201910398119.1A patent/CN110127082B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435399A (en) * | 2010-08-31 | 2012-05-02 | 通用电气公司 | Method and system to detect and measure piping fuel leak |
| CN102589860A (en) * | 2012-01-09 | 2012-07-18 | 中国人民解放军海军航空工程学院青岛分院 | Integrated testing system for aviation fuel accessories |
| CN205594142U (en) * | 2016-03-11 | 2016-09-21 | 常州博能新能源有限公司 | Fuel cell detects control system |
| CN205982219U (en) * | 2016-07-29 | 2017-02-22 | 广州市霆检检测技术有限公司 | Device is surveyed with portable empty gas detection in public place |
| CN206249305U (en) * | 2016-11-11 | 2017-06-13 | 中国人民解放军空军勤务学院 | A kind of parameter acquisition re-recording system |
| CN206313433U (en) * | 2016-12-01 | 2017-07-07 | 陈晓萍 | Intelligent wire means and its system |
| CN107748194A (en) * | 2017-09-08 | 2018-03-02 | 中国飞行试验研究院 | Aircraft fuel tank oxygen concentration Airborne Testing System and method based on electrochemical principle |
| CN108627203A (en) * | 2018-08-23 | 2018-10-09 | 四川多成电力工程安装有限责任公司 | Comprehensive detection system based on transformer monitoring |
| CN109358250A (en) * | 2018-10-26 | 2019-02-19 | 中国人民解放军空军勤务学院 | The quick detection device software of supply vehicle boost conversion and the quick detection device of boost conversion |
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