Aircraft air conditioning quality detection and dehumidification device

Abstract

An aircraft-mounted cooling air quality detection and dehumidification device comprises a housing, a dew point detection module, and a dehumidification module located within the housing. The dew point detection module comprises a first valve and a dew point detection device connected via a pipeline. The dehumidification module comprises a second valve, a pressure sensor, a temperature sensor, a throttle, a flow rate sensor, and an exhaust port, which are sequentially connected via a pipeline. The throttle is externally connected to a temperature control module. This aircraft-mounted cooling air quality detection and dehumidification device not only detects the dew point of high-pressure cooling air onboard, but also removes moisture from the cooling system, keeping the dew point below a specified value. It is easy to operate, provides accurate measurements, and significantly improves work efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of cold air detection and dehumidification, and in particular relates to an aircraft-mounted cold air quality detection and dehumidification device. Background Art

[0002] Aircraft high-pressure cooling air is compressed air that has been dried. It has many advantages, including energy conservation, ease of use, small storage space, and low energy weight, and is widely used in the aviation field. It can serve as a cooling air power source for related system functions such as wheel braking, steering, opening and closing the canopy, and airtight cockpits. However, in winter in high-latitude regions, due to the low outside temperature, the onboard high-pressure cooling air is prone to freezing during decompression operation. Once the onboard high-pressure cooling air freezes, it will directly affect the aircraft's navigation safety. Therefore, the onboard cooling air needs to be replaced regularly to remove moisture from the cooling system. In the existing technology, when replacing the onboard cooling air, the onboard cooling air dew point cannot be detected in real time, making it difficult to visually verify the freezing of moisture in the cooling system. Therefore, it is necessary to provide an aircraft onboard cooling air quality detection and dehumidification device. Summary of the Invention

[0003] The object of the present invention is to provide an aircraft-mounted cold air quality detection and dehumidification device, which solves the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the technical solution adopted by the present invention is: an aircraft air-borne cold air quality detection and dehumidification device, comprising a box body and a dew point detection module and a dehumidification module arranged inside the box body,

[0005] The dew point detection module includes a first valve and a dew point detection device connected by a pipeline, and the first valve is connected to the air intake pipeline;

[0006] The dehumidification module includes a second valve, a pressure sensor, a temperature sensor, a throttle, a flow rate sensor and an exhaust port connected in sequence through pipes. The second valve is connected to the air intake pipe. The outside of the throttle is connected to a temperature control module. The temperature control module includes a heater, a refrigerator, an insulation layer and an electric storage power supply device. The heating wire of the heater is wound around the outside of the throttle, the cooling pipe of the refrigerator is wound around the outside of the heating wire, the insulation layer is sleeved on the outside of the cooling pipe, and the electric storage power supply device is electrically connected to the heater and the refrigerator at the same time.

[0007] On the basis of the above solution and as a preferred solution of the above solution, an air filter is provided on the air intake duct.

[0008] On the basis of the above solution and as a preferred solution of the above solution, the dew point detection device is a dew point meter.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme, a dew point display screen, a pressure gauge, a first temperature gauge, a second temperature gauge and a flow rate meter are provided on the panel of the box body. The dew point display screen is connected to the dew point detection device, the pressure gauge is connected to the pressure sensor, the first temperature gauge is connected to the temperature sensor, the second temperature gauge is connected to the temperature sensor provided on the throttle, and the flow rate meter is connected to the flow rate sensor.

[0010] On the basis of the above solution and as a preferred solution of the above solution, a fault signal light and a normal signal light are provided on the panel of the box.

[0011] On the basis of the above solution and as a preferred solution of the above solution, a charging interface is connected to the box body, and the charging interface is connected to the power storage and power supply device.

[0012] On the basis of the above solution and as a preferred solution of the above solution, the exhaust port is connected to the box body and is trumpet-shaped.

[0013] On the basis of the above solution and as a preferred solution of the above solution, the inlet of the air intake pipe is provided with a connecting hose and connectors of various types.

[0014] On the basis of the above solution and as a preferred solution of the above solution, a universal wheel with a stopping function is provided at the bottom of the box.

[0015] The beneficial effects of the present invention are as follows: the aircraft air-conditioned air quality detection and dehumidification device can not only detect the dew point of the onboard high-pressure air-conditioned air, but also discharge moisture in the air-conditioned air system, so that the dew point of the onboard air-conditioned air is below the specified value. The operation is convenient, the measurement is accurate, and the work quality and efficiency are significantly improved; a dew point display screen, a pressure gauge, a first temperature gauge, a second temperature gauge and a flow rate gauge are provided, which are convenient for intuitively observing the various parameter values ​​of the air-conditioned air; a temperature control module is connected to the throttle, which can both cool the throttle to quickly condense the moisture and heat the throttle to quickly melt the ice crystals. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 It is a structural diagram of the box panel.

[0019] The reference numerals are as follows:

[0020] 1. Box body; 2. First valve; 3. Dew point detection device; 4. Air intake pipe; 5. Second valve; 6. Pressure sensor; 7. Temperature sensor; 8. Throttle; 9. Flow rate sensor; 10. Exhaust port; 11. Heater; 12. Insulation layer; 13. Refrigerator; 14. Power supply device; 15. Air filter; 16. Dew point display; 17. Pressure gauge; 18. First thermometer; 19. Second thermometer; 20. Flow rate meter; 21. Fault signal light; 22. Normal signal light; 23. Charging port. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings 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 making creative efforts are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0023] As attached Figure 1 To the attached Figure 2 As shown, an aircraft-mounted cold air quality detection and dehumidification device includes a box body 1 and a dew point detection module and a dehumidification module arranged inside the box body 1.

[0024] The dew point detection module includes a first valve 2 and a dew point detection device 3 connected by a pipeline, the first valve 2 is connected to the air intake pipeline 4, and the dew point detection device 3 is a dew point meter;

[0025] The dehumidification module includes a second valve 5, a pressure sensor 6, a temperature sensor 7, a throttle 8, a flow rate sensor 9 and an exhaust port 10 connected in sequence through pipes. The second valve 5 is connected to the air intake pipe 4. The outside of the throttle 8 is connected to a temperature control module. The temperature control module includes a heater 11, a refrigerator 13, an insulation layer 12 and an electrical storage power supply device 14. The heating wire of the heater 11 is wound around the outside of the throttle 8, the refrigeration pipe of the refrigerator 13 is wound around the outside of the heating wire, the insulation layer 12 is sleeved on the outside of the refrigeration pipe, and the electrical storage power supply device 14 is electrically connected to the heater 11 and the refrigerator 13 at the same time.

[0026] A dew point display screen 16, a pressure gauge 17, a first thermometer 18, a second thermometer 19 and a flow rate meter 20 are provided on the panel of the box body 1. The dew point display screen 16 is connected to the dew point detection device 3, the pressure gauge 17 is connected to the pressure sensor 6, the first thermometer 18 is connected to the temperature sensor 7, the second thermometer 19 is connected to the temperature sensor provided on the throttle 8, and the flow rate meter 20 is connected to the flow rate sensor 9.

[0027] Working principle:

[0028] During operation, connect the air intake duct to the aircraft's cooling system. First, open the first valve and close the second valve, allowing the onboard cooling air to flow through the intake duct into the dew point detector. After testing, the dew point detector displays the measured dew point value on the dew point display. If the displayed dew point value exceeds the specified dew point value, such as -40°C, dehumidification of the onboard cooling air is required.

[0029] During dehumidification, close the first valve and open the second valve. High-pressure airflow will flow through the pressure and temperature sensors, respectively. The pressure and temperature values ​​measured by these sensors are displayed on the pressure gauge and the first thermometer. As the high-pressure airflow passes through the restrictor, the air pressure inside the restrictor is accelerated, and its temperature drops. The second thermometer displays the temperature inside the restrictor in real time. When the ambient temperature is high, accelerating the airflow alone to cool the air makes it difficult to reach the dew point. In this case, the chiller can be activated to cool the restrictor, thereby rapidly reducing the core temperature of the restrictor and effectively detecting moisture freezing in the airflow.

[0030] As the air temperature inside the restrictor continues to drop to the dew point, moisture in the air gradually precipitates and condenses on the inner wall of the restrictor orifice, causing the orifice diameter to decrease until it completely closes. At this point, the pressure gauge readings gradually increase, while the flow rate gauge readings gradually decrease, indicating that ice has formed inside the restrictor. A second thermometer can be used to measure the freezing temperature inside the restrictor.

[0031] At this point, the heater is activated to melt the ice crystals inside the restrictor, reopening the restrictor. As the onboard cool air flows through the flow velocity sensor, the flow velocity meter displays the measured flow velocity. The air is ultimately discharged from the exhaust port, carrying away any excess moisture.

[0032] After the onboard cold air has been completely discharged, refill the cooling system with high-pressure cold air and continue the dehumidification process until the temperature inside the restrictor, as measured by the second thermometer, falls below the specified cold air dew point and no ice forms on the onboard cold air. At this point, close the second valve, open the first valve, and recheck the onboard cold air dew point using the dew point detection device, keeping a record.

[0033] This aircraft air conditioning quality detection and dehumidification device can not only detect the dew point of the onboard high-pressure air conditioning, but also discharge moisture in the air conditioning system, so that the dew point of the onboard air conditioning is below the specified value. It is easy to operate and has accurate measurement, which significantly improves work quality and efficiency.

[0034] The air intake duct 4 is provided with an air filter 15 for filtering and purifying the onboard cold air.

[0035] A fault signal light 21 and a normal signal light 22 are provided on the panel of the box 1 to facilitate judging whether the device is working normally.

[0036] The box body 1 is connected to a charging interface 23 , which is connected to the power storage and power supply device 14 to facilitate charging the power storage and power supply device.

[0037] The exhaust port 10 is connected to the box body 1 and is trumpet-shaped. The trumpet-shaped expansion has a sound-absorbing effect and can reduce the generated noise.

[0038] The inlet of the air intake pipe 4 is provided with a connecting hose and connectors of various types so as to be suitable for different models.

[0039] The bottom of the box body 1 is provided with universal wheels with a locking function to facilitate the movement of the device.

[0040] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An aircraft-mounted air conditioning quality detection and dehumidification device, characterized by: It comprises a box body (1) and a dew point detection module and a dehumidification module arranged inside the box body (1). The dew point detection module comprises a first valve (2) and a dew point detection device (3) connected via a pipeline, wherein the first valve (2) is connected to an air intake pipeline (4); The dehumidification module comprises a second valve (5), a pressure sensor (6), a temperature sensor (7), a throttle (8), a flow rate sensor (9) and an exhaust port (10) which are sequentially connected through pipelines; the second valve (5) is connected to the air intake pipeline (4); the outside of the throttle (8) is connected to a temperature control module; the temperature control module comprises a heater (11), a refrigerator (13), a heat preservation layer (12) and an electric storage power supply device (14); the heating wire of the heater (11) is wound around the outside of the throttle (8); the refrigeration pipe of the refrigerator (13) is wound around the outside of the heating wire; the heat preservation layer (12) is sleeved on the outside of the refrigeration pipe; and the electric storage power supply device (14) is electrically connected to both the heater (11) and the refrigerator (13); A dew point display screen (16), a pressure gauge (17), a first thermometer (18), a second thermometer (19) and a flow rate meter (20) are provided on the panel of the box body (1); the dew point display screen (16) is connected to the dew point detection device (3); the pressure gauge (17) is connected to the pressure sensor (6); the first thermometer (18) is connected to the temperature sensor (7); the second thermometer (19) is connected to the temperature sensor provided on the throttle (8); and the flow rate meter (20) is connected to the flow rate sensor (9).

2. The aircraft-mounted cold air quality detection and dehumidification device according to claim 1, characterized in that: An air filter (15) is provided on the air intake pipe (4).

3. The aircraft-mounted cold air quality detection and dehumidification device according to claim 1, characterized in that: The dew point detection device (3) is a dew point meter.

4. The aircraft-mounted cold air quality detection and dehumidification device according to claim 1, characterized in that: A fault signal light (21) and a normal signal light (22) are provided on the panel of the box (1).

5. The aircraft-mounted cold air quality detection and dehumidification device according to claim 1, characterized in that: The box (1) is connected to a charging interface (23), and the charging interface (23) is connected to a power storage and power supply device (14).

6. The aircraft-mounted cold air quality detection and dehumidification device according to claim 1, characterized in that: The exhaust port (10) is connected to the box body (1), and the exhaust port (10) is trumpet-shaped.

7. The aircraft-mounted cold air quality detection and dehumidification device according to claim 1, characterized in that: The inlet of the air intake pipe (4) is provided with a connecting hose and connectors of various types.

8. The aircraft-mounted cold air quality detection and dehumidification device according to claim 1, characterized in that: The bottom of the box (1) is provided with a universal wheel with a stopping function.

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