General airplane heat exchanger leakage detection equipment

Abstract

The invention discloses a general aircraft heat exchanger leakage detection device, and relates to the technical field of aircraft airtightness detection, and the general aircraft heat exchanger leakage detection device comprises a left side baffle plate, and a driving regulation and control assembly is installed on the peripheral side of the outer part of the left side baffle plate. The multi-modal detection assembly can adjust the detection position and direction in real time according to the actual shape and surface characteristics of the heat exchanger, the accuracy and reliability of leakage detection are improved through a multi-modal data fusion algorithm, and in the actual detection process, the leakage detection accuracy and reliability are improved by smearing soapy water on the surface of the universal heat exchanger, observing the bubble condition and determining a leakage point. According to the method, engine tail gas is prevented from entering an aircraft cockpit, the safety of personnel in the cockpit is ensured, the type of leakage substances is determined, detailed and accurate information is provided for maintenance personnel, targeted maintenance measures can be conveniently taken, aircraft faults caused by the fact that leakage is not found in time or misjudged are avoided, and the safety and reliability of an aircraft are improved.

Description

Technical Field

[0001] The invention relates to the technical field of aircraft air tightness detection, in particular to a general aircraft heat exchanger leakage detection device. Background Art

[0002] For piston engines, a heat exchanger sealing test is required every 100 hours / year inspection or stage inspection. Especially for field inspection and troubleshooting, professionals are required to dismantle the pipes that need to be inspected on the aircraft, and then put them into special testing instruments for inspection. This method consumes a lot of aircraft downtime and costs a lot, and it is impossible to quickly check the leakage points of the mixing chamber and pipelines of the air-conditioning system.

[0003] However, in the prior art, in terms of detection accuracy, traditional equipment can often only perform simple pressure detection or visual inspection. It is difficult to accurately detect tiny leaks and cannot accurately distinguish the type of leaking substances. As a result, when a heat exchanger leaks, it is impossible to promptly check the leak point and repair or replace it. As a result, when the aircraft is started, the engine exhaust will enter the cockpit and cabin of the aircraft, which can easily cause carbon monoxide poisoning to personnel and endanger personnel safety. Therefore, it is necessary to propose a universal aircraft heat exchanger leakage detection device. Summary of the invention

[0004] The purpose of the present invention is to provide a universal aircraft heat exchanger leakage detection device to solve the problem proposed in the above background technology that in terms of detection accuracy, traditional equipment can often only perform simple pressure detection or visual inspection, and it is difficult to accurately detect tiny leaks and cannot accurately distinguish the type of leaking substances. As a result, when a heat exchanger leaks, it is impossible to promptly check the leakage point and repair or replace it, resulting in the engine exhaust entering the cockpit and cabin of the aircraft when the aircraft is started, which can easily cause carbon monoxide poisoning to personnel and endanger personnel safety.

[0005] To achieve the above object, the present invention provides the following technical solution: a general aircraft heat exchanger leakage detection device, comprising a left baffle, a driving and regulating component is installed on the outer peripheral side of the left baffle, and a multi-modal detection component is installed on the side end of the driving and regulating component;

[0006] The multimodal detection component includes a transverse electromagnetic suspension rail, which is arranged in two groups. The sides of the two groups of transverse electromagnetic suspension rails are slidably connected with interactive sliding frames, and the two groups of transverse electromagnetic suspension rails are located inside the interactive sliding frames to form a height difference. The side wall surface of the interactive sliding frame is fastened with a synchronously connected telescopic rod. The interior of the two groups of transverse electromagnetic suspension rails is slidably connected with a positioning sliding block. A fine-tuning driver is installed on the top of the positioning sliding block. The top output end of the fine-tuning driver is connected to an installation turntable. An ultrasonic detection sensor, an infrared thermal imaging detection sensor and a trace gas analysis sensor are respectively installed on the surface of the installation turntable.

[0007] Preferably, the driving and regulating component comprises an outer frame ring groove, the inner part of which is rotatably connected to an outer ring gear, the bottom end of which is fastened to a bottom ring frame, and the driving gear is installed inside the bottom ring frame.

[0008] Preferably, the center end of the driving gear passes through the bottom ring frame to install a driving motor, and the side end gear ring frame surface of the outer ring gear is tightly connected to the transverse electromagnetic suspension linear rail.

[0009] Preferably, a left rubber plug is installed on the central surface of the side end of the left baffle, the side end of the left rubber plug is sealed and connected to a universal heat exchanger, and the central surface of the side end of the universal heat exchanger is sealed and connected to a right rubber plug.

[0010] Preferably, a right baffle is connected to the side end of the right rubber plug, four groups of screws are arranged around the surfaces of the left baffle and the right baffle, and threads are arranged on the side end surfaces of the four groups of screws.

[0011] Preferably, an array pressure detection sensor is installed on the inner surface of the universal heat exchanger, and the array pressure detection sensor, ultrasonic detection sensor, infrared thermal imaging detection sensor and trace gas analysis sensor are respectively signal-connected to an external microcontroller.

[0012] Preferably, the outside of the side ends of the four groups of screws are threadedly connected to a threaded outer sleeve, the interior of the universal heat exchanger is penetrated and connected with a gas pipeline, a pressure gauge is installed on the outside of the side end of the gas pipeline, and multiple groups of leakage material monitoring sensors are equidistantly installed inside the gas pipeline.

[0013] Preferably, the pressure gauge is used to detect the pressure value of the gas inside the universal heat exchanger, and a gas valve is installed on the side end of the gas pipeline, and the gas valve is used to control the switch of the universal heat exchanger inflation.

[0014] Preferably, a side end of the gas pipeline is connected with a quick-release joint, and the quick-release joint is connected to an external compression pump.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present invention, with the cooperation of the multimodal detection component, when the positioning sliding block slides longitudinally to a specific position in the transverse electromagnetic suspension line rail during operation, the fine-tuning driver accurately adjusts the angle of the mounting turntable according to the real-time feedback information of multiple groups of leakage material monitoring sensors and array pressure detection sensors, so that the ultrasonic detection sensor, the infrared thermal imaging detection sensor and the trace gas analysis sensor are aligned with the to-be-detected part of the universal heat exchanger, so that the ultrasonic detection sensor can capture the change and transmit the signal to the external microcontroller, and then the infrared thermal imaging detection sensor simultaneously performs thermal imaging scanning on the surface of the universal heat exchanger, so that the infrared thermal imaging detection sensor can detect the temperature difference and generate a thermal image, and the external microcontroller analyzes the abnormal temperature area according to the thermal image to further determine whether there is leakage, and the Secondly, the trace gas analysis sensor samples and analyzes the gas around the universal heat exchanger. When a leak occurs, the leaked gas will be detected by the trace gas analysis sensor. By analyzing the gas composition and concentration, the type of leaking material and the degree of leakage are determined. Then the external microcontroller conducts a comprehensive analysis of the above detection results and uses a multimodal data fusion algorithm to improve the accuracy and reliability of leak detection. In the actual detection process, soapy water is applied to the surface of the universal heat exchanger, and the bubble situation is observed to determine the leakage point, prevent engine exhaust from entering the aircraft cabin, ensure the safety of people in the cabin, accurately locate the leakage position, determine the type of leaking material, and provide maintenance personnel with detailed and accurate information, so that they can take targeted maintenance measures to avoid aircraft failures caused by failure to detect or misjudge leakage in time, thereby improving the safety and reliability of the aircraft.

[0017] 2. In the present invention, the microcontroller sends a control instruction to the drive motor under the cooperation of the drive control component, so that the drive motor drives the drive gear to rotate, and the drive gear meshes with the outer ring gear, so that the outer ring gear rotates in the outer frame ring groove. Since the side end gear ring frame of the outer ring gear is tightly connected to the transverse electromagnetic suspension rail, the rotation of the outer ring gear drives the transverse electromagnetic suspension rail to perform a rotational motion of a circular trajectory, and then the rotational motion of the transverse electromagnetic suspension rail drives the interactive sliding frame and the positioning sliding block in the multimodal detection component to perform corresponding circular motion, so as to achieve scanning coverage of different angles and positions of the universal heat exchanger, ensure that the ultrasonic detection sensor, infrared thermal imaging detection sensor and trace gas analysis sensor installed on the interactive sliding frame always maintain a suitable distance and angle with the surface of the universal heat exchanger to obtain accurate detection data, and make the positioning sliding block slide longitudinally in the transverse electromagnetic suspension rail and the fine-tuning driver adjust the angle of the mounting turntable, so that the above-mentioned multimodal detection component can adjust the detection position and direction in real time according to the actual shape and surface characteristics of the heat exchanger, ensure that each part of the heat exchanger can be accurately detected, and improve the detection accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of a general aircraft heat exchanger leakage detection device of the present invention;

[0019] Figure 2 It is a schematic structural diagram of a side view of a general aircraft heat exchanger leakage detection device of the present invention;

[0020] Figure 3 This is a schematic diagram of the installation position structure of the thread in a general aircraft heat exchanger leakage detection device of the present invention;

[0021] Figure 4 A general aircraft heat exchanger leakage detection device according to the present invention Figure 3 A schematic diagram of the enlarged structure at point A;

[0022] Figure 5 A general aircraft heat exchanger leakage detection device according to the present invention Figure 3 A schematic diagram of the enlarged structure at B;

[0023] Figure 6 A general aircraft heat exchanger leakage detection device according to the present invention Figure 3 Enlarged structural diagram at C.

[0024] In the figure: 1. left baffle; 2. left rubber plug; 3. universal heat exchanger; 4. right rubber plug; 5. right baffle; 6. screw; 7. threaded outer sleeve; 8. gas pipe; 9. pressure gauge; 10. gas valve; 11. quick release connector; 12. drive control component; 120. outer frame ring groove; 121. outer ring gear; 122. bottom ring frame; 123. drive motor; 124. drive gear; 13. multimodal detection component; 130. transverse electromagnetic suspension rail; 131. synchronously connected telescopic rod; 132. positioning sliding block; 134. fine-tuning driver; 135. ultrasonic detection sensor; 136. infrared thermal imaging detection sensor; 137. interactive sliding frame; 14. thread. DETAILED DESCRIPTION

[0025] 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 implementation regulations described 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.

[0026] Reference Figure 1 - Figure 6 As shown: a general aircraft heat exchanger leakage detection device, comprising a left baffle 1, a driving and regulating component 12 is installed on the outer peripheral side of the left baffle 1, and a multi-modal detection component 13 is installed on the side end of the driving and regulating component 12;

[0027] The multimodal detection component 13 includes a transverse electromagnetic suspension rail 130, which is arranged in two groups. The sides of the two groups of transverse electromagnetic suspension rails 130 are slidably connected with an interactive sliding frame 137, and the two groups of transverse electromagnetic suspension rails 130 are located inside the interactive sliding frame 137 to form a height difference. The side wall surface of the interactive sliding frame 137 is fastened with a synchronously connected telescopic rod 131. The interior of the two groups of transverse electromagnetic suspension rails 130 is slidably connected with a positioning sliding block 132. A fine-tuning driver 134 is installed on the top of the positioning sliding block 132. The top output end of the fine-tuning driver 134 is connected to an installation turntable, and an ultrasonic detection sensor 135, an infrared thermal imaging detection sensor 136 and a trace gas analysis sensor are respectively installed on the surface of the installation turntable.

[0028] In a specific solution, when the general aircraft heat exchanger leakage detection device is started, the driving and regulating component 12 operates according to the control instruction of the built-in microcontroller of the aircraft, and starts and controls the multi-modal detection component 13 to start detecting the general heat exchanger 3. When the multi-modal detection component 13 is operating, the positioning sliding block 132 slides laterally on the two sets of transverse electromagnetic suspension rails 130 according to a predetermined path. Since there is a height difference between the two sets of transverse electromagnetic suspension rails 130, the side ends of the two sets of transverse electromagnetic suspension rails 130 can be adjusted along the slide grooves inside the interactive sliding frame 137 at different height levels through the interactive sliding frame 137 to form opposite sliding adjustments, so as to adjust the two sets of transverse electromagnetic suspension rails. The actual displacement distance of 130 is obtained. During the sliding process of the two sets of transverse electromagnetic suspension rails 130, the synchronously connected telescopic rod 131 can be telescopically adjusted according to the shape and structure of the universal heat exchanger 3, so that the interactive sliding frame 137 always maintains a suitable distance and angle with the surface of the heat exchanger to ensure the accuracy of the detection. When the positioning sliding block 132 slides longitudinally to a specific position in the transverse electromagnetic suspension rail 130, the fine-tuning driver 134 accurately adjusts the angle of the mounting turntable according to the real-time feedback information of the multiple sets of leakage monitoring sensors and the array pressure detection sensor, so that the ultrasonic detection sensor 135, the infrared thermal imaging detection sensor 136 and the trace gas analysis sensor are aligned with the to-be-detected area of ​​the universal heat exchanger 3. The ultrasonic detection sensor 135 can capture this change and transmit the signal to the external microcontroller. Then the infrared thermal imaging detection sensor 136 simultaneously performs thermal imaging scanning on the surface of the universal heat exchanger 3, so that the infrared thermal imaging detection sensor 136 can detect this temperature difference and generate a thermal image. The external microcontroller analyzes the temperature abnormality area according to the thermal image to further determine whether there is a leakage. Secondly, the trace gas analysis sensor samples and analyzes the gas around the universal heat exchanger 3. When a leakage occurs, the leaked gas will be detected by the trace gas analysis sensor. By analyzing the gas The composition and concentration of the leakage substance can be determined to determine the type of leakage substance and the degree of leakage. After that, the external microcontroller will conduct a comprehensive analysis on the results of ultrasonic detection, infrared thermal imaging detection and trace gas analysis, and use the multimodal data fusion algorithm to improve the accuracy and reliability of leakage detection. In the actual detection process, soapy water is applied to the surface of the universal heat exchanger 3 to observe the bubble situation and determine the leakage point, so as to prevent the engine exhaust from entering the aircraft cabin and ensure the safety of the people in the cabin. The leakage position is accurately located and the type of leakage substance is determined, so as to provide detailed and accurate information for maintenance personnel so that they can take targeted maintenance measures to avoid aircraft failures caused by leakage not being discovered in time or misjudgment, thereby improving the safety and reliability of the aircraft.

[0029] Embodiment 2, in the present invention, according to Figure 1 , Figure 2 and Figure 4 As shown, the driving and regulating component 12 includes an outer frame ring groove 120, the inner part of which is rotatably connected to an outer ring gear 121, the bottom end of the outer ring gear 121 is fastened to a bottom ring frame 122, and a driving gear 124 is installed inside the bottom ring frame 122.

[0030] The center end of the driving gear 124 passes through the bottom ring frame 122 to install the driving motor 123 , and the side end gear ring frame surface of the outer ring gear 121 is tightly connected to the transverse electromagnetic suspension linear track 130 .

[0031] In a specific solution, when the universal heat exchanger 3 is detected, the drive motor 123 is started according to the instruction of the microcontroller, so that the drive motor 123 drives the drive gear 124 to rotate, and the drive gear 124 is meshed with the outer ring gear 121, so that the outer ring gear 121 rotates in the outer frame ring groove 120. Since the side end gear ring frame of the outer ring gear 121 is tightly connected to the transverse electromagnetic suspension rail 130, the rotation of the outer ring gear 121 drives the transverse electromagnetic suspension rail 130 to rotate in a circular trajectory, and then the rotation of the transverse electromagnetic suspension rail 130 drives the interactive sliding frame 137 and the positioning sliding block 132 in the multimodal detection component 13 to perform corresponding circular motion, so as to realize scanning coverage of different angles and positions of the universal heat exchanger 3. During the rotation of the suspension rail 130, the synchronously connected telescopic rod 131 automatically adjusts the posture of the interactive sliding frame 137 according to the shape and surface features of the universal heat exchanger 3, ensuring that the ultrasonic detection sensor 135, infrared thermal imaging detection sensor 136 and trace gas analysis sensor installed on the interactive sliding frame 137 always maintain a suitable distance and angle with the surface of the universal heat exchanger 3 to obtain accurate detection data, and enables the positioning sliding block 132 to slide longitudinally in the horizontal electromagnetic suspension rail 130 and the fine-tuning driver 134 to adjust the angle of the mounting turntable, so that the above-mentioned multimodal detection component 13 can adjust the detection position and direction in real time according to the actual shape and surface features of the heat exchanger, ensuring that every part of the heat exchanger can be accurately detected, thereby improving the accuracy and efficiency of the detection.

[0032] Embodiment 3, in the present invention, according to Figure 1 - Figure 3 As shown, a left rubber plug 2 is installed on the center surface of the side end of the left baffle 1, the side end of the left rubber plug 2 is sealed with a universal heat exchanger 3, and the side end center surface of the universal heat exchanger 3 is sealed with a right rubber plug 4.

[0033] The side end of the right rubber plug 4 is connected to the right baffle plate 5 , and four groups of screws 6 are arranged around the surfaces of the left baffle plate 1 and the right baffle plate 5 . Threads 14 are arranged on the side end surfaces of the four groups of screws 6 .

[0034] An array pressure detection sensor is installed on the inner surface of the universal heat exchanger 3, and the array pressure detection sensor, the ultrasonic detection sensor 135, the infrared thermal imaging detection sensor 136 and the trace gas analysis sensor are respectively connected to the external microcontroller to form signal connections.

[0035] The outer side ends of the four groups of screw rods 6 are threadedly connected to the threaded outer sleeve 7 through threads 14. The interior of the universal heat exchanger 3 is penetrated and connected with a gas pipeline 8. A pressure gauge 9 is installed on the outer side of the side end of the gas pipeline 8. A plurality of groups of leakage monitoring sensors are equidistantly installed inside the gas pipeline 8.

[0036] The pressure gauge 9 is used to detect the pressure value of the gas inside the universal heat exchanger 3. A gas valve 10 is installed on the side end of the gas pipeline 8. The gas valve 10 is used to control the switch of the universal heat exchanger 3 for inflation.

[0037] A side end of the gas pipeline 8 is connected with a quick-release joint 11, and the quick-release joint 11 is connected to an external compression pump.

[0038] In a specific solution, firstly, the left rubber plug 2 is installed on the central surface of the side end of the left baffle 1 to ensure that it is firmly installed and well sealed. Then, the side end of the left rubber plug 2 is sealed and connected with the side end of the universal heat exchanger 3. During the connection process, the air in the connection part is removed to prevent leakage. Then, the right rubber plug 4 is sealed and connected with the central surface of the right end of the universal heat exchanger 3 to ensure the reliability of the seal. Then, the right baffle 5 is connected to the side end of the right rubber plug 4, so that the universal heat exchanger 3 is sealed by the right rubber plug 4 and the left rubber plug. 2. The right baffle 5 and the left baffle 1 are tightly surrounded, and the four sets of screws 6 surround the sides of the left baffle 1 and the right baffle 5 in the installation, and are connected with the threaded outer sleeve 7 through the threads 14 on the screws 6. During the connection process, the threaded outer sleeve 7 is gradually tightened so that the left and right baffles apply a uniform clamping force to the universal heat exchanger 3 to ensure the stability and sealing of the entire sealing structure. Secondly, the through-connection of the gas pipeline 8 and the universal heat exchanger 3 is ensured to ensure that the pipeline connection is leak-free, and the pressure gauge 9 installed at the side end of the gas pipeline 8 is used to ensure its measurement accuracy. Calibration and zeroing operations are performed, and the gas valve 10 is installed on the side of the gas pipeline 8 to ensure that its opening and closing functions are normal and to ensure that the switch of the universal heat exchanger 3 can be accurately controlled. Then the quick-release connector 11 is connected to the side of the gas pipeline 8 and connected to the external compression pump to check the firmness and sealing of the connection to prevent leakage during the inflation process. Then, during the detection process, the gas valve 10 is closed, the external compression pump is started, and a certain pressure of gas is filled into the gas pipeline 8 through the quick-release connector 11. At the same time, the reading of the pressure gauge 9 is observed. When the pressure reaches the preset initial pressure value, the inflation is stopped and the connection between the compression pump and the quick-release connector 11 is closed. At this time, the array pressure detection sensor begins to monitor the pressure changes at different positions inside the universal heat exchanger 3 in real time, and transmits the data to the external microcontroller, so that the microcontroller analyzes the feedback pressure data to determine whether there is an abnormal pressure area. If the pressure is abnormal, it may indicate that there is a hidden danger of leakage in the area, and further detection is required to determine the specific coordinates or area range of the leakage point inside the universal heat exchanger 3 for subsequent maintenance.

[0039] The wiring diagrams of the ultrasonic detection sensor 135, infrared thermal imaging detection sensor 136, trace gas analysis sensor, leakage monitoring sensor and array pressure detection sensor in the present invention are common knowledge in the field, and their working principles are already known technologies. The models are selected according to actual use, so the control method and wiring layout of the ultrasonic detection sensor 135, infrared thermal imaging detection sensor 136, trace gas analysis sensor, leakage monitoring sensor and array pressure detection sensor will no longer be explained in detail.

[0040] The method of use and working principle of the device are as follows: first, install the left rubber plug 2 on the center surface of the side end of the left baffle 1 to ensure that it is firmly installed and well sealed, then seal the side end of the left rubber plug 2 with the side end of the universal heat exchanger 3, and remove the air in the connection part during the connection process to prevent leakage, then seal the right rubber plug 4 with the center surface of the right end of the universal heat exchanger 3 to ensure the reliability of the seal, then connect the right baffle 5 to the side end of the right rubber plug 4, so that the universal heat exchanger 3 is tightly surrounded by the right rubber plug 4, the left rubber plug 2, the right baffle 5 and the left baffle 1, and four sets of screws 6 surround the sides of the left baffle 1 and the right baffle 5 during the installation, through the threads 14 on the screws 6 and the threaded sleeve The universal heat exchanger 3 is connected with the sleeve 7. During the connection process, the threaded outer sleeve 7 is gradually tightened so that the left and right baffles apply a uniform clamping force to the universal heat exchanger 3 to ensure the stability and sealing of the entire sealing structure. Secondly, the gas pipeline 8 and the universal heat exchanger 3 are connected through and through to ensure that there is no leakage in the pipeline connection. The pressure gauge 9 installed at the side end of the gas pipeline 8 must ensure its measurement accuracy, perform calibration and zeroing operations, and the gas valve 10 is installed on the side end of the gas pipeline 8 to ensure its opening and closing function is normal, and ensure that the inflation switch of the universal heat exchanger 3 can be accurately controlled. Then the quick-release connector 11 is connected to the side end of the gas pipeline 8 and connected to the external compression pump. The firmness and sealing of the connection are checked to prevent leakage during the inflation process. Then, during the inspection During the measurement process, the gas valve 10 is closed, the external compression pump is started, and a certain pressure of gas is filled into the gas pipeline 8 through the quick-release joint 11, and the reading of the pressure gauge 9 is observed at the same time. When the pressure reaches the preset initial pressure value, the inflation is stopped and the connection between the compression pump and the quick-release joint 11 is closed. At this time, the array pressure detection sensor begins to monitor the pressure changes at different positions inside the universal heat exchanger 3 in real time, and transmits the data to the external microcontroller, so that the microcontroller analyzes the feedback pressure data to determine whether there is an abnormal pressure area. If abnormal pressure is found, it may indicate that there is a leakage risk in the area. Then the drive motor 123 is started according to the instruction of the microcontroller, so that the drive motor 123 drives the drive gear 124 to rotate, and the drive gear 124 meshes with the outer ring gear 121, so that the outer ring gear 121 rotates in the outer frame ring groove 120. Since the side end gear ring frame of the outer ring gear 121 is tightly connected to the transverse electromagnetic suspension track 130, the rotation of the outer ring gear 121 drives the transverse electromagnetic suspension track 130 to rotate in a circular track, and then the rotation of the transverse electromagnetic suspension track 130 drives the interactive sliding frame 137 and the positioning sliding block 132 in the multimodal detection component 13 to perform corresponding circular motions, thereby realizing scanning coverage of different angles and positions of the universal heat exchanger 3. During the rotation of the transverse electromagnetic suspension track 130, the synchronously connected telescopic rod 131 automatically adjusts the posture of the interactive sliding frame 137 according to the shape and surface features of the universal heat exchanger 3.Ensure that the ultrasonic detection sensor 135, infrared thermal imaging detection sensor 136 and trace gas analysis sensor installed on the interactive sliding frame 137 always maintain a suitable distance and angle with the surface of the universal heat exchanger 3 to obtain accurate detection data, and make the positioning slide block 132 slide longitudinally in the transverse electromagnetic suspension line rail 130 and the fine-tuning driver 134 adjust the angle of the mounting turntable, so that the above-mentioned multi-modal detection component 13 can adjust the detection position and direction in real time according to the actual shape and surface characteristics of the heat exchanger, and then make the positioning slide block 132 slide transversely along the predetermined path on the two sets of transverse electromagnetic suspension line rails 130. Due to the height of the two sets of transverse electromagnetic suspension line rails 130, The difference can be made by the interactive sliding frame 137 at different height levels so that the side ends of the two sets of transverse electromagnetic suspension rails 130 can be adjusted along the slide groove inside the interactive sliding frame 137 to form a sliding adjustment in the opposite direction, so as to adjust the actual displacement distance of the two sets of transverse electromagnetic suspension rails 130. During the sliding process of the two sets of transverse electromagnetic suspension rails 130, the synchronously connected telescopic rod 131 can be adjusted according to the shape and structure of the universal heat exchanger 3, so that the interactive sliding frame 137 always maintains a suitable distance and angle with the surface of the heat exchanger to ensure the accuracy of the detection. When the positioning sliding block 132 slides longitudinally to a specific position in the transverse electromagnetic suspension rail 130, the fine-tuning driver 134 adjusts the displacement distance of the two sets of transverse electromagnetic suspension rails 130 according to the shape and structure of the universal heat exchanger 3. The information fed back in real time by the monitoring sensor and the array pressure detection sensor is used to accurately adjust the angle of the mounting turntable so that the ultrasonic detection sensor 135, the infrared thermal imaging detection sensor 136 and the trace gas analysis sensor are aligned with the part to be detected of the universal heat exchanger 3. When there is a small leakage inside the heat exchanger, the flow of gas or liquid at the leakage will change the propagation characteristics of the ultrasonic wave. The ultrasonic detection sensor 135 can capture this change and transmit the signal to the external microcontroller. Then the infrared thermal imaging detection sensor 136 simultaneously performs a thermal imaging scan on the surface of the universal heat exchanger 3, so that the infrared thermal imaging detection sensor 136 can detect this temperature difference and generate a thermal image. The external microcontroller generates a thermal image based on the thermal image. Analyze the temperature abnormality area to further determine whether there is leakage. Secondly, the trace gas analysis sensor samples and analyzes the gas around the universal heat exchanger 3. When leakage occurs, the leaked gas will be detected by the trace gas analysis sensor. By analyzing the gas composition and concentration, the type of leaking material and the degree of leakage are determined. After that, the external microcontroller comprehensively analyzes the results of ultrasonic detection, infrared thermal imaging detection and trace gas analysis, and uses multimodal data fusion algorithms to improve the accuracy and reliability of leakage detection. In the actual detection process, soapy water is applied to the surface of the universal heat exchanger 3, and the bubble situation is observed to determine the leakage point, prevent the engine exhaust from entering the aircraft cabin, and ensure the safety of people in the cabin.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A general aircraft heat exchanger leakage detection device, characterized in that: It comprises a left baffle (1), a driving and regulating component (12) is installed on the outer peripheral side of the left baffle (1), and a multi-modal detection component (13) is installed on the side end of the driving and regulating component (12); The multimodal detection component (13) comprises a transverse electromagnetic suspension rail (130), wherein the transverse electromagnetic suspension rail (130) is arranged in two groups, the sides of the two groups of the transverse electromagnetic suspension rail (130) are slidably connected to an interactive sliding frame (137), and the two groups of the transverse electromagnetic suspension rail (130) are located inside the interactive sliding frame (137) to form a height difference arrangement, the side wall surface of the interactive sliding frame (137) is fastened with a synchronously connected telescopic rod (131), the interior of the two groups of the transverse electromagnetic suspension rail (130) is slidably connected to a positioning sliding block (132), the top of the positioning sliding block (132) is installed with a fine-tuning driver (134), the top output end of the fine-tuning driver (134) is connected to an installation turntable, and an ultrasonic detection sensor (135), an infrared thermal imaging detection sensor (136) and a trace gas analysis sensor are respectively installed on the surface of the installation turntable.

2. The general aircraft heat exchanger leakage detection device according to claim 1, characterized in that: The driving and regulating component (12) comprises an outer frame ring groove (120), the interior of the outer frame ring groove (120) is rotatably connected to an outer ring gear (121), the bottom end of the outer ring gear (121) is fastened to a bottom ring frame (122), and a driving gear (124) is installed inside the bottom ring frame (122).

3. The general aircraft heat exchanger leakage detection device according to claim 2, characterized in that: The central end of the driving gear (124) passes through the bottom ring frame (122) to install a driving motor (123), and the side end gear ring frame surface of the outer ring gear (121) and the transverse electromagnetic suspension line rail (130) are tightly connected.

4. The general aircraft heat exchanger leakage detection device according to claim 2, characterized in that: A left rubber plug (2) is installed on the central surface of the side end of the left baffle (1), the side end of the left rubber plug (2) is sealed and connected to a universal heat exchanger (3), and the central surface of the side end of the universal heat exchanger (3) is sealed and connected to a right rubber plug (4).

5. The general aircraft heat exchanger leakage detection device according to claim 4, characterized in that: The side end of the right rubber plug (4) is connected to a right baffle (5), and four groups of screw rods (6) are arranged around the surfaces of the left baffle (1) and the right baffle (5), and threads (14) are arranged on the side end surfaces of the four groups of screw rods (6).

6. The general aircraft heat exchanger leakage detection device according to claim 4, characterized in that: An array pressure detection sensor is installed on the internal surface of the universal heat exchanger (3), and the array pressure detection sensor, ultrasonic detection sensor (135), infrared thermal imaging detection sensor (136) and trace gas analysis sensor are respectively connected to an external microcontroller for signal formation.

7. The general aircraft heat exchanger leakage detection device according to claim 5, characterized in that: The outer side ends of the four groups of screw rods (6) are threadedly connected to a threaded outer sleeve (7) via threads (14); a gas pipeline (8) is passed through the interior of the universal heat exchanger (3); a pressure gauge (9) is installed on the outer side of the side end of the gas pipeline (8); and multiple groups of leakage monitoring sensors are installed at equal intervals inside the gas pipeline (8).

8. The general aircraft heat exchanger leakage detection device according to claim 7, characterized in that: The pressure gauge (9) is used to detect the pressure value of the gas inside the universal heat exchanger (3), and a gas valve (10) is installed on the side end of the gas pipeline (8), and the gas valve (10) is used to control the switch of the universal heat exchanger (3) for charging.

9. The general aircraft heat exchanger leakage detection device according to claim 8, characterized in that: A side end of the gas pipeline (8) is connected to a quick-release joint (11), and the quick-release joint (11) is in communication with an external compression pump.

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