Intelligent aviation oil filter separator pressure difference acquisition and analysis system

Abstract

The invention relates to the technical field of intelligent aviation oil systems, and discloses an intelligent aviation oil filter separator pressure difference acquisition and analysis system, which expands an intelligent refueling system in combination with pressure difference electronization, realizes pressure difference electronization, supports automatic reading of pressure difference, can realize pressure difference real-time monitoring through system sampling analysis during working, and improves the working efficiency. Normality of a pressure difference value is automatically judged, an alarm is given for abnormal pressure difference, intelligent analysis and visual display of the pressure difference can be achieved, the conditions of pressure difference value abnormity and pressure difference change abnormity are automatically evaluated, alarm is given, equipment management and control and decision-making capacity is improved, maintenance and management of the filter can be achieved through maintenance and management of the filter in the later period, and the maintenance efficiency of the filter is improved. Through function expansion of the scheme, the efficiency and accuracy of pressure difference collection of the filter can be greatly improved, the accuracy and timeliness of pressure difference monitoring and early warning are ensured, and the intelligence and automation level of an intelligent refueling system is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent aviation fuel systems, and in particular to an intelligent aviation fuel filter separator pressure difference collection and analysis system. Background Art

[0002] The smart aviation fuel system is a comprehensive information system for refueling civil aircraft developed by China Aviation Oil based on emerging information technology. It realizes the standardization, electronicization, visualization and automation of fuel supply guarantee and sales settlement. The smart refueling system is a front-end production system for production guarantee and data collection in the smart aviation fuel system. It is an important part of the smart aviation fuel system. It realizes the information coverage of each production node (airport) and the front-end production guarantee business support. It has changed the low efficiency phenomena such as high labor intensity and low work efficiency caused by traditional working methods such as intercom and manual filling, and achieved a huge leap in the digitalization of aviation fuel. At present, the smart refueling system has been deployed in more than 50 airports across the country, covering the refueling business of more than 230 airports.

[0003] The filter separator (referred to as the filter) is a device on the aircraft refueling truck that filters the fuel. It is an important device to ensure the quality of the oil and ensure the safety of the fuel supply. The filter pressure difference is a key indicator to reflect whether the filter is normal (whether the filtering effect meets the standard). In the daily work of aviation fuel, the aviation refueling station needs to monitor, record and analyze the pressure difference of the refueling truck filter to judge the working status of the filter and provide a basis for filter maintenance and filter element replacement. At present, the collection and analysis of the filter pressure difference at the aviation refueling station are all carried out manually, which has large errors and accidental factors, and is not conducive to the objective and accurate analysis of the working status of the filter. The functions of the smart refueling system in pressure difference collection and monitoring are also relatively simple. It only provides the functions of pressure difference entry, upload, storage and query. More importantly, the pressure difference conversion, analysis and early warning functions are missing, which has very limited improvement on the efficiency of pressure difference collection and analysis. For this reason, a smart aviation fuel filter separator pressure difference collection and analysis system is proposed. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent aviation fuel filter separator pressure difference collection and analysis system to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: 1. A smart aviation fuel filter separator pressure differential collection and analysis system, comprising: an aviation fuel integrated machine, an electronic pressure differential gauge, a warning light, an electronic fuel gauge, a smart tablet and a pressure differential management terminal;

[0006] Aviation fuel integrated machine: used to achieve equipment docking and data forwarding;

[0007] Electronic differential pressure gauge: It can measure the differential pressure value and display it in the form of electronic data and send it to the aviation fuel integrated machine for reference factors of differential pressure data evaluation and conversion;

[0008] Warning light: controlled by the aviation fuel integrated machine to provide sound and light alarm when the pressure difference is abnormal;

[0009] The electronic fuel gauge: realizes the reading of fueling flow rate and fuel quantity and sends the relevant data to the aviation fuel integrated machine;

[0010] Smart tablet: realizes pressure difference management related functions, including pressure difference reading, pressure difference uploading, pressure difference monitoring alarm and supports fueling staff operation;

[0011] Pressure difference management end: Receives pressure difference data uploaded by the aviation fuel integrated machine to realize pressure difference function configuration, data storage, pressure difference conversion, pressure difference query, pressure difference analysis and chart display functions.

[0012] Preferably, the above-mentioned aviation fuel integrated machine is connected to the electronic differential pressure gauge, warning light, and electronic fuel gauge. The aviation fuel integrated machine is connected to the system background through a wireless network. The electronic differential pressure gauge is installed in parallel with the original mechanical differential pressure gauge on the upper part of the refueling truck. A tee is added to the inlet pressure pipe and outlet pressure pipe of the original mechanical differential pressure gauge, and the inlet pressure and outlet pressure are respectively connected to the electronic differential pressure gauge to realize the electronicization of the filter tank pressure differential value.

[0013] The working method of the intelligent aviation fuel filter separator pressure difference collection and analysis system includes the following steps:

[0014] S1. Pressure difference management configuration, configure working parameters;

[0015] S2, differential pressure collection, realizing the data collection and uploading function of filter differential pressure in the smart tablet;

[0016] S3, PAD differential pressure alarm, to achieve real-time monitoring and alarm of filter differential pressure data in the smart tablet;

[0017] S4, pressure difference preservation, the function of processing and saving pressure difference data in the smart refueling background;

[0018] S5, differential pressure monitoring, monitoring and alarming of real-time differential pressure data in the smart refueling background;

[0019] S6, pressure difference query and statistics, query and statistics of task pressure difference through the smart refueling pressure difference management page;

[0020] S7. Filter maintenance management: manage the filter and related maintenance through the smart refueling pressure difference management page.

[0021] Preferably, the above S1 includes the following sub-steps:

[0022] S101, rated flow rate setting, setting the rated flow rate of each vehicle for pressure difference conversion calculation;

[0023] S102, setting the pressure difference range, setting the upper limit and lower limit of the normal pressure difference of each vehicle, which is used to judge the abnormal pressure difference;

[0024] S103, setting the pressure difference variation range, setting the upper limit and lower limit of the pressure difference variation value of each vehicle for judging the abnormal pressure difference variation;

[0025] S104, pressure difference collection interval setting, set the real-time pressure difference data collection interval, and configure it uniformly for the entire terminal.

[0026] Preferably, the above S2 includes the following sub-steps:

[0027] S201, data reading, after refueling begins, real-time reading of electronic differential pressure gauge data and electronic fuel gauge flow rate through the aviation fuel integrated machine;

[0028] S202, real-time pressure difference upload, upload the pressure difference data and the oil flow rate at the same time to the system background, the uploaded content includes: mission record number, flight number, aircraft number, oil bill number, vehicle number, vehicle type, aircraft position, ground well number, pressure difference value, oil flow rate, collection time, and the upload interval is uniformly configured by the background;

[0029] S203, extracting and uploading the maximum flow rate pressure difference, extracting the maximum flow rate pressure difference and the corresponding flow rate of the task from the real-time pressure difference data, taking the average value of the corresponding pressure difference when there are multiple maximum flow rates, and uploading and saving the maximum flow rate and the corresponding pressure difference together with the task after refueling is completed;

[0030] S204, offline caching, when the smart tablet is offline due to network abnormalities, the maximum flow rate pressure difference data is cached locally along with the task, and automatically uploaded with the task when the network is restored. The real-time pressure difference data is directly discarded without caching and retransmission.

[0031] Preferably, the above S3 includes the following sub-steps:

[0032] S301, differential pressure gauge breakdown alarm: during the refueling process, when the flow rate is not 0 but the differential pressure is 0, it means that the differential pressure gauge may fail and an alarm is required. If a Deadman control device is installed, refueling will be automatically stopped;

[0033] S302, the alarm mode is implemented. When an alarm occurs, a pop-up window appears on the smart tablet, and the warning light gives an alarm through sound and light. The alarm lasts for 10-15 seconds.

[0034] S303: The alarm is eliminated, and the pop-up window of the smart tablet alarm does not close automatically. At this time, the alarm is not triggered repeatedly. The gas station attendant manually closes the pop-up window of the smart tablet to release the alarm. After closing the pop-up window, if an abnormality is detected again, the alarm will continue and refueling will be stopped.

[0035] Preferably, the above S4 includes the following sub-steps:

[0036] S401, pressure difference conversion, after receiving the pressure difference data uploaded by the vehicle-mounted device, the measured pressure difference value is converted into the standard pressure difference according to the standard pressure difference conversion formula and the corresponding flow rate. The flow rate efficiency calculation formula is:

[0037] Flow rate efficiency = flow rate / filter rated flow rate * 100%

[0038] The calculation formula for the full flow pressure difference is:

[0039] The full flow pressure difference of this time = (measured pressure difference * ((2.237*2.718^(-0.00896*flow rate power)) + (9.638*2.718^(-0.04719*flow rate power))))

[0040] In the formula: ^ represents power operation, and the listed data are all fixed value parameters;

[0041] Pressure difference change calculation formula:

[0042] Pressure difference change value = this full flow pressure difference value - last full flow pressure difference value

[0043] Abnormal situation judgment: IF(AND(this full flow pressure difference value <= 100, -35 ≤ pressure difference change value ≤ 35), "no abnormality", "abnormal");

[0044] S402, maximum flow rate pressure difference data is saved. After conversion and calculation of efficacy, the maximum flow rate pressure difference data needs to be saved in a database in a one-to-one correspondence with the task;

[0045] S403, calculate and save the maximum flow rate pressure difference change value, and obtain the pressure difference change value of this task by subtracting the maximum flow rate pressure difference of the previous task of the refueling truck from the maximum flow rate pressure difference of the current task, and save it in the database in a one-to-one correspondence with the task.

[0046] Preferably, the above S5 includes the following sub-steps:

[0047] S501, abnormal pressure difference value alarm, the system automatically judges the abnormality of the received real-time pressure difference data, and when the pressure difference value after conversion to the standard pressure difference deviates from the normal range, it is considered that the pressure difference value is abnormal and triggers an alarm;

[0048] S502, abnormal pressure difference change alarm, the system automatically judges the abnormality of the received task pressure difference data, and when the difference between the maximum flow rate pressure difference value after conversion to the standard pressure difference and the maximum flow rate pressure difference of the previous task deviates from the normal range, it is considered that the pressure difference change is abnormal and an alarm is triggered;

[0049] S503, abnormal pressure difference storage, the real-time pressure difference data that triggers the alarm needs to be saved in the database for future reference;

[0050] S504, real-time monitoring, by selecting the refueling truck, task, and refueler that is performing the task in the dispatch client, you can open the pressure difference monitoring page to view the real-time data of the pressure difference of the corresponding refueling truck.

[0051] Preferably, the above S6 includes the following sub-steps:

[0052] S601, query the pressure difference record, you can select the refueling truck, time period, aircraft position, ground well, flight number, aircraft number, query the pressure difference record of each task and mark the abnormal data in red;

[0053] S602, drawing a pressure difference curve. After selecting a refueling truck, a time period, and a statistical granularity, the pressure difference data of the refueling truck in the time range can be retrieved and displayed according to the statistical granularity, and the corresponding pressure difference change curve can be drawn simultaneously through a table display;

[0054] S603, abnormal pressure difference query, select the refueling vehicle and time period to query the abnormal pressure difference records in the corresponding range;

[0055] S604, pressure difference statistics, select a time period, and count the number of refueling times, the number of abnormal pressure difference occurrences, the maximum pressure difference, the minimum pressure difference, the average pressure difference, and the pressure difference variance for each vehicle.

[0056] Preferably, the above S7 includes the following sub-steps:

[0057] S701, filter basic information maintenance, add a new filter or maintain the basic information of the filter number, vehicle number, model, brand, status, purchase date, and maintenance interval;

[0058] S702, filter maintenance information maintenance, maintenance of maintenance records for selected filters, maintenance contents include: filter inspection, filter cleaning, replacement of analysis filter element, replacement of separation filter element, replacement of coalescence filter element. When the same maintenance contains multiple contents, multiple maintenance contents should be recorded at the same time, and the latest maintenance date of the filter will be automatically updated after maintenance;

[0059] S703, query filter maintenance records, query filter maintenance information by filter number, vehicle number, model, brand, and maintenance date range;

[0060] S704, maintenance reminder, reminding when the maintenance date is approaching according to the number of days between filter maintenance.

[0061] Compared with the prior art, the present invention adopts the above technical solution and has the following technical effects:

[0062] 1. The present invention expands the smart refueling system by combining the electronicization of pressure differential, provides an integrated solution for pressure differential collection, analysis, and early warning, realizes the electronicization of pressure differential, supports automatic reading of pressure differential, improves the efficiency and accuracy of pressure differential data collection, greatly improves the efficiency and accuracy of filter pressure differential collection, ensures the accuracy and timeliness of pressure differential monitoring and early warning, and further improves the intelligence and automation level of the smart refueling system, helping to improve the efficiency and safety level of fuel supply guarantee at aviation refueling stations.

[0063] 2. During operation, the system sampling and analysis can realize real-time monitoring of the pressure difference, automatically judge the normality of the pressure difference value, and alarm for abnormal pressure difference. If necessary, refueling will be automatically stopped to improve the oil quality control ability. In addition, through the interaction of smart tablets and data charts, intelligent analysis and visualization of pressure difference can be realized, and abnormal pressure difference values ​​and abnormal pressure difference changes can be automatically evaluated and alarmed, thereby improving equipment control and decision-making capabilities.

[0064] 3. In the later stage, filter maintenance management can be used to realize filter maintenance management, automatically provide maintenance and filter element replacement expiration reminders, and improve filter maintenance management efficiency and accuracy. Through the functional expansion of this solution, the intelligence and automation level of the smart refueling system can be improved, and the smart aviation fuel system's support capabilities for the digitalization of aviation fuel companies can be strengthened. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0066] Figure 1 It is a schematic diagram of the overall working of the system of the present invention;

[0067] Figure 2 It is a schematic diagram of the working installation and data transmission process of the electronic differential pressure meter of the present invention;

[0068] Figure 3 It is a schematic diagram of the overall working process of the system of the present invention;

[0069] Figure 4 This is a schematic diagram of the system pressure difference record query interface of the present invention;

[0070] Figure 5 It is a schematic diagram of the system pressure difference curve interface of the present invention;

[0071] Figure 6 It is a schematic diagram of the system filter maintenance record query interface of the present invention. DETAILED DESCRIPTION

[0072] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0073] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0074] Example

[0075] See also Figure 1-6 , the present invention provides a technical solution: a smart aviation fuel filter separator pressure difference collection and analysis system, including: an aviation fuel integrated machine, an electronic pressure difference meter, a warning light, an electronic fuel gauge, a smart tablet and a pressure difference management terminal;

[0076] Aviation fuel integrated machine: used to achieve equipment docking and data forwarding. The aviation fuel integrated machine is connected to the electronic differential pressure gauge, warning light, and electronic fuel gauge through the smart refueling explosion-proof box to achieve data connectivity. In order to achieve data background upload, the aviation fuel integrated machine is connected to the system background through a wireless network;

[0077] Electronic differential pressure gauge: It can measure the differential pressure value and display it in the form of electronic data and send it to the aviation fuel integrated machine for reference factors of differential pressure data evaluation and conversion. In terms of installation, the electronic differential pressure gauge is installed in parallel with the original mechanical differential pressure gauge on the upper part of the refueling truck. A tee is added to the inlet pressure pipe and outlet pressure pipe of the original mechanical differential pressure gauge, and the inlet pressure and outlet pressure are connected to the electronic differential pressure gauge to realize the electronic differential pressure value of the filter tank. Figure 2The figure shows the installation and data transmission process of the sub-differential pressure gauge. An electronic differential pressure gauge is added to the refueling truck and the original smart refueling system control board is replaced. The electronic differential pressure gauge is connected to the smart refueling vehicle system through the HART communication serial port. The system automatically collects the differential pressure value of the electronic differential pressure gauge through the HART serial port protocol, and reads the current flow through the electronic flow meter. The differential pressure value and the current flow are automatically transmitted back to the background server through the smart refueling system network. The electronic differential pressure gauge measures the pressure data of the filter, and then transmits it back to the background for conversion processing.

[0078] After technical verification, the electronic differential pressure gauge of this solution adopts the imported Rosemount brand differential pressure transmitter, model: Rosemount 3051C, with a measurement range of 0-150Kpa, and the measuring medium is aviation kerosene (No. 3 jet fuel), which meets the safety technical standards of China's aviation fuel; the data protocol is 4-20mA HARTA protocol, with a compact design, strong and light weight, and easy to install;

[0079] Warning light: controlled by the aviation fuel integrated machine to provide sound and light alarm when the pressure difference is abnormal;

[0080] Electronic fuel gauge: reads fuel flow rate and fuel quantity and sends relevant data to the aviation fuel integrated machine;

[0081] Smart tablet: realizes pressure difference management related functions, including pressure difference reading, pressure difference uploading, pressure difference monitoring alarm and supports fueling staff operation;

[0082] Pressure difference management end: Receives pressure difference data uploaded by the aviation fuel integrated machine to realize pressure difference function configuration, data storage, pressure difference conversion, pressure difference query, pressure difference analysis and chart display functions.

[0083] The working method of the intelligent aviation fuel filter separator pressure difference collection and analysis system includes the following steps:

[0084] S1. Pressure difference management configuration, configure working parameters, as follows:

[0085] S101, rated flow rate setting, setting the rated flow rate of each vehicle for pressure difference conversion calculation;

[0086] S102, setting the pressure difference range, setting the upper limit and lower limit of the normal pressure difference of each vehicle, which is used to judge the abnormal pressure difference;

[0087] S103, setting the pressure difference variation range, setting the upper limit and lower limit of the pressure difference variation value of each vehicle for judging the abnormal pressure difference variation;

[0088] S104, pressure difference collection interval setting, set the real-time pressure difference data collection interval, and configure it uniformly for the entire terminal.

[0089] S2, differential pressure collection, realize the data collection and upload function of filter differential pressure in the smart tablet, as follows:

[0090] S201, data reading, after refueling begins, real-time reading of electronic differential pressure gauge data and electronic fuel gauge flow rate through the aviation fuel integrated machine;

[0091] S202, real-time pressure difference upload, upload the pressure difference data and the oil flow rate at the same time to the system background, the uploaded content includes: mission record number, flight number, aircraft number, oil bill number, vehicle number, vehicle type (tank truck, pipeline truck), aircraft position, ground well number, pressure difference value, oil flow rate, collection time (PAD local time), etc., the upload interval is uniformly configured by the background;

[0092] S203, extracting and uploading the maximum flow rate pressure difference, extracting the maximum flow rate pressure difference (pressure difference when the flow rate is maximum) and the corresponding flow rate of the task from the real-time pressure difference data, taking the average value of the corresponding pressure difference when there are multiple maximum flow rates, and uploading and saving the maximum flow rate and the corresponding pressure difference together with the task after refueling is completed;

[0093] S204, offline caching, when the smart tablet is offline due to network abnormalities, the maximum flow rate pressure difference data is cached locally along with the task, and automatically uploaded with the task when the network is restored. The real-time pressure difference data is directly discarded without caching and retransmission.

[0094] S3, PAD differential pressure alarm, to achieve real-time monitoring and alarm functions of filter differential pressure data in the smart tablet, as follows:

[0095] S301, differential pressure gauge breakdown alarm. During the refueling process, when the flow rate is not 0 but the differential pressure is 0, it means that the differential pressure gauge may fail (breakdown, power failure, etc.) and an alarm is required. If a Deadman control device is installed, refueling will be automatically stopped (the airport or Xianyang refueling truck without Deadman control does not provide the stop refueling function);

[0096] S302, the alarm mode is implemented. When an alarm occurs, a pop-up window appears on the smart tablet, and the warning light gives an alarm through sound and light. The alarm lasts for 10-15 seconds.

[0097] S303: The alarm is eliminated, and the pop-up window of the smart tablet alarm does not close automatically. At this time, the alarm is not triggered repeatedly. The gas station attendant manually closes the pop-up window of the smart tablet to release the alarm (the warning light no longer alarms). After closing the pop-up window, if an abnormality is detected again, the alarm will continue and refueling will be stopped.

[0098] S4, pressure difference preservation, the processing and preservation of pressure difference data in the smart refueling background, as follows:

[0099] S401, pressure difference conversion, after receiving the pressure difference data uploaded by the vehicle-mounted device, the measured pressure difference value is converted into the standard pressure difference according to the standard pressure difference conversion formula and the corresponding flow rate. The flow rate efficiency calculation formula is:

[0100] Flow rate efficiency = flow rate / filter rated flow rate * 100% (rounded to integer)

[0101] Specific input data: flow rate efficiency = 2420 / 3842*100 = 63

[0102] The calculation formula for the full flow pressure difference is:

[0103] The full flow pressure difference of this time = (measured pressure difference * ((2.237*2.718^(-0.00896*flow rate power)) + (9.638*2.718^(-0.04719*flow rate power))))

[0104] In the formula: ^ represents power operation, and the listed data are all fixed value parameters;

[0105] Pressure difference change calculation formula:

[0106] Pressure difference change value = this full flow pressure difference value - last full flow pressure difference value Specific input data: Pressure difference change value = 42-44 = -2

[0107] Abnormal situation judgment: IF(AND(this full flow pressure difference value <= 100, -35 ≤ pressure difference change value ≤ 35), "no abnormality", "abnormal");

[0108] That is, abnormal situation judgment: 42≤100AND-35≤-2≤35, no abnormality;

[0109] S402, maximum flow rate pressure difference data preservation, the maximum flow rate pressure difference data (pressure difference and corresponding flow rate), after conversion and calculation of efficacy, needs to be saved one by one with the task (or directly saved in the task) to the database;

[0110] S403, calculate and save the maximum flow rate pressure difference change value, and obtain the pressure difference change value of this task by subtracting the maximum flow rate pressure difference of the previous task of the refueling truck from the maximum flow rate pressure difference of the current task. Then, save it in the database in one-to-one correspondence with the task (or directly save it in the task).

[0111] S5, differential pressure monitoring, monitoring and alarming of real-time differential pressure data in the smart refueling background, as follows:

[0112] S501, abnormal pressure difference value alarm. The system automatically judges the abnormality of the received real-time pressure difference data. When the pressure difference value (full flow pressure difference value) after conversion to the standard pressure difference deviates from the normal range (lower than the lower limit or higher than the upper limit), the pressure difference value is considered abnormal and the alarm is triggered. The abnormal pressure difference alarm information is sent to the dispatcher and the refueler through phrases, etc. After the dispatcher receives it, a small window needs to pop up for display. After the refueler receives it, a pop-up window prompts and an alarm is issued through the warning light. The normal pressure difference range (upper and lower limits) of each vehicle can be configured separately;

[0113] S502, abnormal pressure difference change alarm, the system automatically judges the received task pressure difference data (maximum flow rate pressure difference) for abnormality. When the difference between the maximum flow rate pressure difference value (full flow pressure difference value) converted to the standard pressure difference and the maximum flow rate pressure difference of the previous task deviates from the normal range (lower than the lower limit or higher than the upper limit), the pressure difference change is considered abnormal, triggering an alarm, and sending the abnormal pressure difference alarm information to the dispatcher and the refueler through phrases, etc. After the dispatcher receives it, a small window needs to pop up for display. After the refueler receives it, a pop-up window prompts and an alarm is issued through the warning light. The normal pressure difference change range (upper and lower limits) of each vehicle can be configured separately;

[0114] S503, abnormal pressure difference storage, the real-time pressure difference data that triggers the alarm needs to be saved in the database for future reference;

[0115] S504, real-time monitoring. In the dispatch client, by selecting the refueling truck, task, or refueler that is performing the task, you can open the pressure difference monitoring page to view the real-time data of the pressure difference of the corresponding refueling truck, including:

[0116] Real-time table data: Display the real-time differential pressure information in the last 10 minutes in a table, and display the collected original differential pressure and the converted standard differential pressure at the same time. Abnormal differential pressure data should be marked in red.

[0117] Real-time pressure difference curve: Draw the real-time pressure difference curve within the last 10 minutes. The upper and lower pressure difference values ​​should be drawn when displayed. The curve should be drawn only according to the converted standard pressure difference. Abnormal pressure difference values ​​should be clearly reflected.

[0118] S6. Pressure difference query and statistics: query and statistics of task pressure difference through the smart refueling pressure difference management page, as follows:

[0119] S601, pressure difference record query, you can select the refueling truck, time period, aircraft position, ground well, flight number, aircraft number, query the pressure difference record of each task and mark the abnormal data in red. The interface reference is as shown in the attached Figure 4 As shown;

[0120] S602, pressure difference curve drawing. After selecting the refueling truck, time period, and statistical granularity, the pressure difference data of the refueling truck in the time range can be retrieved and displayed according to the statistical granularity, and the corresponding pressure difference change curve can be drawn through a table display. The specific requirements are as follows;

[0121] Statistical granularity: including tasks, days, and Wednesdays: when statistics are calculated based on task granularity, each record is the pressure difference data of each task, which is directly obtained from the task pressure difference record; when statistics are calculated based on day granularity, each record is the maximum flow rate and pressure difference data of each day, and the flow rate and pressure difference are respectively taken from the flow rate and pressure difference corresponding to the task with the largest flow rate among all the task pressure difference data of that day; when statistics are calculated based on week granularity, each record is the maximum flow rate and pressure difference data of each week, and the flow rate and pressure difference are respectively the flow rate and pressure difference corresponding to the task with the largest flow rate among all the task pressure difference data of that week (the pressure difference record template is made according to the existing template in Xianyang);

[0122] Table display fields: serial number (starting from 1), date, flow rate, efficacy, original differential pressure (unconverted), standard differential pressure (converted), whether the differential pressure is abnormal, differential pressure change value, whether the differential pressure change is abnormal;

[0123] Pressure difference curve: Draw the pressure difference curve according to the standard pressure difference data in the result table;

[0124] Pressure difference change curve: Draw the pressure difference change curve according to the pressure difference change value in the result table. The pressure difference curve interface is shown in the attached figure. Figure 5 As shown:

[0125] S603, abnormal pressure difference query, select the refueling vehicle and time period to query the abnormal pressure difference records in the corresponding range;

[0126] S604, pressure difference statistics, you can select a time period, and count the number of refueling times, the number of abnormal pressure differences, the maximum pressure difference (the maximum value of the task pressure difference), the minimum pressure difference (the minimum value of the task pressure difference), the average pressure difference (the average value of the maximum flow rate pressure difference), and the pressure difference variance for each vehicle.

[0127] S7, filter maintenance management, through the intelligent refueling pressure difference management page to manage the maintenance of the filter and related periods, as follows:

[0128] S701, filter basic information maintenance, add a new filter or maintain the basic information of the filter number, vehicle number, model, brand, status, purchase date, and maintenance interval;

[0129] S702, filter maintenance information maintenance, maintenance of maintenance records for selected filters, maintenance contents include: filter inspection, filter cleaning, replacement of analysis filter element, replacement of separation filter element, replacement of coalescence filter element. When the same maintenance contains multiple contents, multiple maintenance contents should be recorded at the same time, and the latest maintenance date of the filter will be automatically updated after maintenance;

[0130] S703, filter maintenance record query, query filter maintenance information by filter number, vehicle number, model, brand, maintenance date range, the interface reference is as attached Figure 6 As shown;

[0131] S704, maintenance reminder, according to the filter maintenance interval days when the date is approaching, reminder methods include:

[0132] Separately list all filters to be maintained on the day, within three days, and within a week, as well as the scheduled maintenance dates;

[0133] Send a phrase to the dispatcher one day in advance (configurable) to notify the filter information (vehicle number) to be maintained the next day;

[0134] The pressure difference curve point at the first maximum flow rate after the filter maintenance is color-identified, and it can be seen at a glance that the pressure difference has increased because the filter has just been maintained.

[0135] In summary, the present invention combines the electronicization of pressure difference to expand the smart refueling system, provides an integrated solution for pressure difference collection, analysis, and early warning, realizes the electronicization of pressure difference, supports automatic reading of pressure difference, improves the efficiency and accuracy of pressure difference data collection, greatly improves the efficiency and accuracy of filter pressure difference collection, ensures the accuracy and timeliness of pressure difference monitoring and early warning, and further improves the intelligence and automation level of the smart refueling system, helps to improve the efficiency and safety level of fuel supply guarantee at aviation refueling stations. During operation, real-time monitoring of pressure difference can be achieved through system sampling and analysis, the normality of pressure difference value can be automatically judged, and abnormal pressure difference can be reported. The system can automatically stop refueling when necessary to improve the oil quality control capabilities, and through the interaction of smart tablets and data graphs, it can realize intelligent analysis and visualization of pressure differences, automatically evaluate abnormal pressure difference values ​​and abnormal pressure difference changes and issue alarms to improve equipment control and decision-making capabilities. In the later stage, through filter maintenance management, it can realize filter maintenance management, automatically perform maintenance, replace filter elements, etc. Expiration reminders, improve filter maintenance management efficiency and accuracy. Through the functional expansion of this solution, the intelligence and automation level of the smart refueling system can be improved, and the smart aviation fuel system can strengthen its support capabilities for the digitalization of aviation fuel companies.

[0136] It will be appreciated by those skilled in the art that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

Claims

1. Intelligent aviation fuel filter separator pressure difference collection and analysis system, characterized by: include: Aviation fuel integrated machine, electronic differential pressure gauge, warning light, electronic fuel gauge, smart tablet and differential pressure management terminal; Aviation fuel integrated machine: used to achieve equipment docking and data forwarding; Electronic differential pressure gauge: It can measure the differential pressure value and display it in the form of electronic data and send it to the aviation fuel integrated machine for reference factors of differential pressure data evaluation and conversion; Warning light: controlled by the aviation fuel integrated machine to provide sound and light alarm when the pressure difference is abnormal; The electronic fuel gauge can read the fuel flow rate and fuel quantity and send the relevant data to the aviation fuel integrated machine; Smart tablet: realizes pressure difference management related functions, including pressure difference reading, pressure difference uploading, pressure difference monitoring alarm and supports fueling staff operation; Pressure difference management end: Receives pressure difference data uploaded by the aviation fuel integrated machine to realize pressure difference function configuration, data storage, pressure difference conversion, pressure difference query, pressure difference analysis and chart display functions.

2. The intelligent aviation fuel filter separator pressure difference collection and analysis system according to claim 1 is characterized by: The integrated aviation fuel machine is connected to the electronic differential pressure gauge, warning light, and electronic fuel gauge. The integrated aviation fuel machine is connected to the system background through a wireless network. The electronic differential pressure gauge is installed in parallel with the original mechanical differential pressure gauge on the upper part of the refueling truck. A tee is added to the inlet pressure pipe and outlet pressure pipe of the original mechanical differential pressure gauge, and the inlet pressure and outlet pressure are respectively connected to the electronic differential pressure gauge to realize the electronicization of the filter tank pressure differential value.

3. The working method of the intelligent aviation fuel filter separator pressure difference collection and analysis system according to claim 1 is characterized in that: The following steps are involved: S1. Pressure difference management configuration, configure working parameters; S2, differential pressure collection, realizing the data collection and uploading function of filter differential pressure in the smart tablet; S3, PAD differential pressure alarm, to achieve real-time monitoring and alarm of filter differential pressure data in the smart tablet; S4, pressure difference storage, the function of processing and saving pressure difference data in the smart refueling background; S5, differential pressure monitoring, monitoring and alarming of real-time differential pressure data in the smart refueling background; S6, pressure difference query and statistics, query and statistics of task pressure difference through the smart refueling pressure difference management page; S7. Filter maintenance management: manage the filter and related maintenance through the smart refueling pressure difference management page.

4. The working method of the intelligent aviation fuel filter separator pressure difference collection and analysis system according to claim 3 is characterized in that: The S1 comprises the following sub-steps: S101, rated flow rate setting, setting the rated flow rate of each vehicle for pressure difference conversion calculation; S102, setting the pressure difference range, setting the upper limit and lower limit of the normal pressure difference of each vehicle, which is used to judge the abnormal pressure difference; S103, setting the pressure difference variation range, setting the upper limit and lower limit of the pressure difference variation value of each vehicle for judging the abnormal pressure difference variation; S104, pressure difference collection interval setting, set the real-time pressure difference data collection interval, and configure it uniformly for the entire terminal.

5. The working method of the intelligent aviation fuel filter separator pressure difference collection and analysis system according to claim 3 is characterized in that: The S2 comprises the following sub-steps: S201, data reading, after refueling begins, real-time reading of electronic differential pressure gauge data and electronic fuel gauge flow rate through the aviation fuel integrated machine; S202, real-time pressure difference upload, upload the pressure difference data and the oil flow rate at the same time to the system background, the uploaded content includes: mission record number, flight number, aircraft number, oil bill number, vehicle number, vehicle type, aircraft position, ground well number, pressure difference value, oil flow rate, collection time, and the upload interval is uniformly configured by the background; S203, extracting and uploading the maximum flow rate pressure difference, extracting the maximum flow rate pressure difference and the corresponding flow rate of the task from the real-time pressure difference data, taking the average value of the corresponding pressure difference when there are multiple maximum flow rates, and uploading and saving the maximum flow rate and the corresponding pressure difference together with the task after refueling is completed; S204, offline caching, when the smart tablet is offline due to network abnormalities, the maximum flow rate pressure difference data is cached locally along with the task, and automatically uploaded with the task when the network is restored. The real-time pressure difference data is directly discarded without caching and retransmission.

6. The working method of the intelligent aviation fuel filter separator pressure difference collection and analysis system according to claim 3 is characterized in that: The S3 comprises the following sub-steps: S301, differential pressure gauge breakdown alarm: during the refueling process, when the flow rate is not 0 but the differential pressure is 0, it means that the differential pressure gauge may fail and an alarm is required. If a Deadman control device is installed, refueling will be automatically stopped; S302, the alarm mode is implemented. When an alarm occurs, a pop-up window appears on the smart tablet, and the warning light gives an alarm through sound and light. The alarm lasts for 10-15 seconds. S303: The alarm is eliminated, and the pop-up window of the smart tablet alarm does not close automatically. At this time, the alarm is not triggered repeatedly. The gas station attendant manually closes the pop-up window of the smart tablet to release the alarm. After closing the pop-up window, if an abnormality is detected again, the alarm will continue and refueling will be stopped.

7. The working method of the intelligent aviation fuel filter separator pressure difference collection and analysis system according to claim 3 is characterized in that: The S4 comprises the following sub-steps: S401, pressure difference conversion, after receiving the pressure difference data uploaded by the vehicle-mounted device, the measured pressure difference value is converted into the standard pressure difference according to the standard pressure difference conversion formula and the corresponding flow rate. The flow rate efficiency calculation formula is: Flow rate efficiency = flow rate / filter rated flow rate * 100% The calculation formula for the full flow pressure difference is: The full flow pressure difference of this time = (measured pressure difference * ((2.237*2.718^(-0.00896*flow rate power)) + (9.638*2.718^(-0.04719*flow rate power)))) In the formula: ^ represents power operation, and the listed data are all fixed value parameters; Pressure difference change calculation formula: Pressure difference change value = this full flow pressure difference value - last full flow pressure difference value Abnormal situation judgment: IF(AND(this full flow pressure difference value <= 100, -35 ≤ pressure difference change value ≤ 35), "no abnormality", "abnormal"); S402, maximum flow rate pressure difference data is saved. After conversion and calculation of efficacy, the maximum flow rate pressure difference data needs to be saved in a database in a one-to-one correspondence with the task; S403, calculate and save the maximum flow rate pressure difference change value, and obtain the pressure difference change value of this task by subtracting the maximum flow rate pressure difference of the previous task of the refueling truck from the maximum flow rate pressure difference of the current task, and save it in the database in a one-to-one correspondence with the task.

8. The working method of the intelligent aviation fuel filter separator pressure difference collection and analysis system according to claim 3 is characterized in that: The S5 comprises the following sub-steps: S501, abnormal pressure difference value alarm, the system automatically judges the abnormality of the received real-time pressure difference data, and when the pressure difference value after conversion to the standard pressure difference deviates from the normal range, it is considered that the pressure difference value is abnormal and triggers an alarm; S502, abnormal pressure difference change alarm, the system automatically judges the abnormality of the received task pressure difference data, and when the difference between the maximum flow rate pressure difference value after conversion to the standard pressure difference and the maximum flow rate pressure difference of the previous task deviates from the normal range, it is considered that the pressure difference change is abnormal and an alarm is triggered; S503, abnormal pressure difference storage, the real-time pressure difference data that triggers the alarm needs to be saved in the database for future reference; S504, real-time monitoring, by selecting the refueling truck, task, and refueler that is performing the task in the dispatch client, you can open the pressure difference monitoring page to view the real-time data of the pressure difference of the corresponding refueling truck.

9. The working method of the intelligent aviation fuel filter separator pressure difference collection and analysis system according to claim 3 is characterized in that: The S6 comprises the following sub-steps: S601, query the pressure difference record, you can select the refueling truck, time period, aircraft position, ground well, flight number, aircraft number, query the pressure difference record of each task and mark the abnormal data in red; S602, drawing a pressure difference curve. After selecting a refueling truck, a time period, and a statistical granularity, the pressure difference data of the refueling truck in the time range can be retrieved and displayed according to the statistical granularity, and the corresponding pressure difference change curve can be drawn simultaneously through a table display; S603, abnormal pressure difference query, select the refueling vehicle and time period to query the abnormal pressure difference records in the corresponding range; S604, pressure difference statistics, select a time period, and count the number of refueling times, the number of abnormal pressure difference occurrences, the maximum pressure difference, the minimum pressure difference, the average pressure difference, and the pressure difference variance for each vehicle.

10. The working method of the intelligent aviation fuel filter separator pressure difference collection and analysis system according to claim 3 is characterized in that: The S7 comprises the following sub-steps: S701, filter basic information maintenance, add a new filter or maintain the basic information of the filter number, vehicle number, model, brand, status, purchase date, and maintenance interval; S702, filter maintenance information maintenance, maintenance of maintenance records for selected filters, maintenance contents include: filter inspection, filter cleaning, replacement of analysis filter element, replacement of separation filter element, replacement of coalescence filter element. When the same maintenance contains multiple contents, multiple maintenance contents should be recorded at the same time, and the latest maintenance date of the filter will be automatically updated after maintenance; S703, query filter maintenance records, query filter maintenance information by filter number, vehicle number, model, brand, and maintenance date range; S704, maintenance reminder, reminding when the maintenance date is approaching according to the number of days between filter maintenance.

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