Deicing fluid automatic detection device

Abstract

The utility model belongs to the field of airport airplane deicing, and particularly relates to an automatic deicing fluid detection device which comprises a sample collection device, a detection device, a control device, a recovery device and a chassis device. The detection device is used for detecting liquid refractive index and particle data in liquid; the control device is used for controlling the work of each component in the detection device; the recovery device is used for storing and emptying waste liquid; the chassis device is used for integrally bearing the device and carrying out traction and fixation; the collection device is connected with the detection device, a control device is arranged in the detection device, and the detection device is connected with the recovery device. The device is installed at a fixed point of a liquid adding station, automatically identifies information of a deicing vehicle, and is used for collecting a deicing liquid sample, automatically detecting, displaying a detection result, judging liquid applicability and storing the detection result. The sampling detection efficiency of the deicing liquid spray gun opening in the deicing vehicle is improved, and a plurality of steps of the whole detection process are optimized to be completed in one station.

Description

Technical Field

[0001] This utility model belongs to the field of airport aircraft de-icing, and in particular relates to an automatic de-icing fluid detection device. Background Technology

[0002] Civil aviation has set forth clear requirements for the management of de-icing fluid, its delivery / receiving inspection, and in-use testing. De-icing fluid must undergo the corresponding tests before it can be used. De-icing fluid testing includes visual inspection for contaminants, refractive index (freezing point) testing, and pH value testing. Before use, de-icing fluid in de-icing trucks must undergo visual inspection for contaminants and refractive index (freezing point) testing, requiring direct sampling from the spray nozzle. Visual inspection for contaminants is completed visually, refractive index testing is completed using a refractive index meter, and pH value testing is completed using a pH value meter.

[0003] Currently, airports in China with de-icing and anti-icing capabilities still rely mainly on traditional manual testing for de-icing fluid. Personnel use samplers to collect samples and then send them to an indoor constant-temperature environment for testing.

[0004] The main deficiencies in the current testing methods are as follows:

[0005] 1. The testing process is inefficient and time-consuming. In the existing testing methods, sample collection takes 2 minutes, transportation takes 1 minute, testing takes 5 minutes, and recording takes 2 minutes, with the entire process taking about 10 minutes.

[0006] 2. Waste of human resources. The sampling and testing process is completed by dedicated personnel. Each refill station needs to set up 1-3 sampling and testing personnel depending on different operating conditions. If three refill stations are operating at the same time, 3-9 personnel are needed to be responsible for this work.

[0007] 3. Errors caused by human factors. The sample testing process and results are recorded manually. The greater the operational pressure, the greater the possibility of human error. Especially under extreme weather conditions such as snowfall, freezing rain, and freezing fog, the de-icing fluid is consumed quickly, leading to frequent refills of the de-icing truck. At the same time, there is time pressure, and errors caused by human factors will become more prominent.

[0008] 4. Causes environmental pollution. The existing process operates in a non-closed environment, and there is a risk of spillage at every step of sample collection, transportation, testing, and waste disposal, which poses a certain degree of environmental hazard.

[0009] 5. Misoperation may result in burns. Sampling should be done from the nozzle of the spray gun. The standard temperature of the de-icing fluid spray gun outlet is above 60℃, but the actual temperature is generally around 80℃. Misoperation may result in burns. Summary of the Invention

[0010] In order to overcome the above-mentioned problems of existing technologies, it is proposed to build an automated, convenient, efficient, accurate and reliable automatic detection device for de-icing fluid sampling at the nozzle of the de-icing fluid spray gun in de-icing trucks.

[0011] To achieve the above-mentioned technical effects, the technical solution of this application is as follows:

[0012] An automatic de-icing fluid detection device includes a sample collection device, a detection device, a control device, a recovery device, and a chassis device, wherein the sample collection device, the detection device, the control device, and the recovery device are respectively installed on the chassis device;

[0013] The collection device is used for collecting liquids;

[0014] The detection device is used to detect the refractive index of a liquid and the particles in the liquid;

[0015] The control device is used to control the operation of each component in the detection device;

[0016] The recovery device is used for the storage and discharge of waste liquid;

[0017] The chassis is used to support the entire device, and to provide traction and fixation.

[0018] The collection device is connected to the detection device, the detection device is equipped with a control device, and the detection device is connected to the recovery device.

[0019] Furthermore, the sample collection device includes a collection box, in which a sampling collection trough is provided. The sampling collection trough is provided with a sampling port and an overflow port. The sampling collection trough is connected to the detection chamber through a pipeline, and the overflow port is connected to the waste liquid recovery storage tank through a guide pipe.

[0020] Furthermore, the detection device includes a detection chamber, a capacitive liquid level sensor, an online refractometer, and a particle counter; the detection chamber is connected to a connecting hose, which is connected to the particle counter via a particle counter inlet pump; a capacitive liquid level sensor is installed inside the detection chamber; an online refractometer is installed on the side of the detection chamber; and the sensor of the online refractometer is located inside the detection chamber housing.

[0021] Furthermore, the detection chamber includes a detection chamber housing, with an inlet pipe connected to the top of the housing and an outlet pipe connected to the bottom. A first square observation window and a second square observation window are respectively provided on two sides of the housing. Both the first and second square observation windows are fitted with high-transparency glass. A high-definition industrial camera and an open-face light source are connected to the outside of the second square observation window. A manual ball valve and a power ball valve are sequentially installed on the outlet pipe. A sampling valve is connected to one side of the detection chamber housing.

[0022] Furthermore, the capacitive liquid level sensor is fitted with a liquid level sensor sleeve, which is located inside the detection chamber housing.

[0023] Furthermore, the outer side of the detection chamber housing is also provided with a detection chamber hose interface, and a detection chamber water outlet hose interface is provided on the liquid outlet pipe.

[0024] Furthermore, the control device includes an electrical control box, in which a PLC is installed. A display screen box is provided at one end of the electrical control box, in which a display screen is installed. A vehicle identifier is installed on the outside of the electrical control box. A three-color alarm and an audible and visual alarm are installed on the outside of the upper surface of the waste liquid recovery storage tank. The display screen, the three-color alarm, and the audible and visual alarm are all connected to the PLC signal.

[0025] Furthermore, the recycling device includes a waste liquid recycling storage tank, a waste liquid tank level gauge is installed on the waste liquid recycling storage tank, a drain pump is installed on the outer upper surface of the waste liquid recycling storage tank, a drain pump suction pipe and a drain pump suction pipe bottom valve are installed inside the storage tank, the drain pump suction pipe and the drain pump suction pipe bottom valve are connected to the inlet of the drain pump, and the outlet of the drain pump is connected to the drain pump outlet pipe.

[0026] Furthermore, the chassis assembly includes a frame, tires, and a hand jack, which are mounted on the frame.

[0027] The advantages of this application are:

[0028] 1. This device can be installed at designated locations in refueling stations, automatically identifying de-icing truck information. It is used for de-icing fluid sample collection, autonomous testing, displaying test results, determining fluid suitability, and storing test results. It improves the sampling and testing efficiency of de-icing fluid nozzles in de-icing trucks, optimizing multiple steps of the entire testing process to be completed at a single station, thus shortening existing testing times. When used in conjunction with filling stations, it improves refueling efficiency and enhances airport winter operational capabilities.

[0029] 2. This device can improve de-icing efficiency: It can integrate sampling, detection, display, and data retention, optimizing multiple steps of the entire detection process to be completed in one station. It can reduce the existing detection time from 10 minutes to 4 minutes, allowing de-icing trucks to be quickly put into de-icing and anti-icing operations. It is estimated that the reduced detection time per truck can complete the routine de-icing work of 1.5 Category C aircraft, reducing the time spent by aircraft waiting for de-icing vehicles, and improving the airport's on-time performance and service capacity.

[0030] 3. This device can save human resources: Currently, de-icing fluid sampling and testing are all handled by dedicated personnel. After using the automatic de-icing fluid testing device, it can replace the testing personnel. At present, each refilling station needs to set up one sampling and testing personnel according to different operating conditions. If three refilling stations are operating at the same time, three personnel can be reduced. The testing personnel work in three shifts, reducing the number of personnel by a total of nine. Based on labor costs, the annual de-icing season can reduce expenditures by approximately 100,000 to 300,000 yuan.

[0031] 4. This device can eliminate errors caused by human factors: using standardized equipment for testing can make the test results more accurate, and at the same time, the test results are automatically displayed and recorded, thus avoiding the impact of human factors on the results from the source.

[0032] 5. This device can prevent personnel injury during the inspection process: It can achieve the entire inspection process without ground personnel, preventing injury from misoperation.

[0033] 6. This device brings environmental and social benefits: The entire process is operated in a closed system, which greatly reduces the risk of de-icing liquid spillage. At the same time, the waste liquid after detection is automatically collected, which facilitates subsequent treatment. Attached Figure Description

[0034] Figure 1 This is a three-dimensional schematic diagram of an automatic de-icing fluid detection device.

[0035] Figure 2 This is a three-dimensional schematic diagram of the internal structure of the automatic de-icing fluid detection device.

[0036] Figure 3 This is a three-dimensional schematic diagram of the internal structure of the automatic de-icing fluid detection device.

[0037] Figure 4 This is a right-hand view of the interior of the automatic de-icing fluid detection device.

[0038] Figure 5 This is a front view of the interior of the automatic de-icing fluid detection device.

[0039] Figure 6 This is a left-side view of the interior of the automatic de-icing fluid detection device.

[0040] Figure 7 This is a three-dimensional schematic diagram of the detection device in the automatic de-icing fluid detection system.

[0041] Figure 8 This is a front view of the detection device in the automatic de-icing fluid detection system.

[0042] Figure 9 This is a side view of the detection device in the automatic de-icing fluid detection system.

[0043] Figure 10 for Figure 8 AA sectional view.

[0044] In the attached image:

[0045] 1-Collection box, 2-Display screen box, 3-Audible and visual alarm, 4-Storage tank, 5-Electrical control box, 6-Frame, 7-Tire, 8-Hand-cranked jack, 9-Particle counter, 10-Particle counter inlet pump, 11-Connecting hose, 12-Vehicle identifier, 13-Three-color alarm, 14-Capacitive liquid level sensor, 15-Waste liquid tank level gauge, 16-Drain pump outlet pipe, 17-Drain pump, 18-Drain pump suction pipe, 19-Drain pump suction pipe Bottom valve, 20-Guide pipe, 21-Detection chamber housing, 22-First square observation window, 23-Second square observation window, 24-Outlet pipe, 25-Cartridge electric ball valve, 26-Cartridge manual ball valve, 27-High-definition industrial camera, 28-Open surface light source, 29-Online refractometer, 30-Capacitive liquid level sensor, 31-Liquid level sensor sleeve, 32-Sampling valve, 33-Detection chamber hose interface, 34-Detection chamber outlet hose interface. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0047] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0048] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0049] In the description of this application, it should be noted that the terms "upper," "vertical," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0050] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0051] Example 1

[0052] An automatic de-icing fluid detection device includes a sample collection device, a detection device, a control device, a recovery device, and a chassis device, wherein the sample collection device, the detection device, the control device, and the recovery device are respectively installed on the chassis device;

[0053] The collection device is used for collecting liquids;

[0054] The detection device is used to detect the refractive index of a liquid and the particles in the liquid;

[0055] The control device is used to control the operation of each component in the detection device;

[0056] The recovery device is used for the storage and discharge of waste liquid;

[0057] The chassis is used to support the entire device, and to provide traction and fixation.

[0058] The collection device is connected to the detection device, the detection device is equipped with a control device, and the detection device is connected to the recovery device.

[0059] This application involves a fixed-point installation at a refueling station that automatically identifies de-icing truck information. It is used for de-icing fluid sample collection, autonomous testing, displaying test results, determining fluid suitability, and storing test results. This improves the efficiency of de-icing fluid sampling and testing at the de-icing truck's nozzle, optimizing multiple steps of the entire testing process to be completed at a single station, reducing the current testing time from 10 minutes to 4 minutes. When used in conjunction with a filling station, it improves refueling efficiency and enhances airport winter operational capabilities.

[0060] Example 2

[0061] An automatic de-icing fluid detection device includes a sample collection device, a detection device, a control device, a recovery device, and a chassis device, wherein the sample collection device, the detection device, the control device, and the recovery device are respectively installed on the chassis device;

[0062] The collection device is used for collecting liquids;

[0063] The detection device is used to detect the refractive index of liquids and particles in the liquids;

[0064] The control device is used to control the operation of each component in the detection device;

[0065] The recovery unit is used for the storage and emptying of waste liquid;

[0066] The chassis assembly is used to support the entire device, and for traction and fixation;

[0067] The collection device is connected to the detection device, which contains a control device, and the detection device is connected to the recovery device.

[0068] The sample collection device includes a collection box 1, which is equipped with a sampling collection tank. The sampling collection tank is equipped with a sampling port and an overflow port. The sampling collection tank is connected to the detection chamber through a pipeline, and the overflow port is connected to the waste liquid recovery storage tank 4 through a guide pipe 20.

[0069] The detection device includes a detection chamber, a capacitive liquid level sensor 14, an online refractometer 29, and a particle counter 9. The detection chamber is connected to a connecting hose 11, which is connected to the particle counter 9 via a particle counter inlet pump 10. The capacitive liquid level sensor 14 is installed inside the detection chamber, and the online refractometer 29 is installed on the side of the detection chamber. The sensor of the online refractometer 29 is located inside the detection chamber housing 21.

[0070] The detection chamber includes a detection chamber housing 21. The top of the detection chamber housing 21 is connected to a liquid inlet pipe, and the bottom of the detection chamber housing 21 is connected to a liquid outlet pipe 24. The two sides of the detection chamber housing 21 are respectively provided with a first square observation window 22 and a second square observation window 23. Both the first square observation window 22 and the second square observation window 23 are provided with high-transparency glass. The second square observation window 23 is externally connected to a high-definition industrial camera 27 and an open surface light source 28. A cassette manual ball valve 26 and a cassette electric ball valve 25 are sequentially installed on the liquid outlet pipe 24. A sampling valve 32 is connected to one side of the detection chamber housing 21.

[0071] The capacitive liquid level sensor 14 is fitted with a liquid level sensor sleeve 31, which is located inside the detection chamber housing 21.

[0072] The outer side of the detection chamber housing 21 is also provided with a detection chamber hose interface 33, and the liquid outlet pipe 24 is provided with a detection chamber water outlet hose interface 34.

[0073] The capacitive liquid level sensor 14 is used for the measurement inside the detection chamber. The liquid in the detection chamber reaches the granule counter inlet pump through the connecting hose 11. The granule counter inlet pump pressurizes the liquid and sends it through the hose to the particle counter 9. The particle counter 9 is used to measure and count the particles in the liquid.

[0074] A cassette-type electric ball valve 25 and a cassette-type manual ball valve 26 are installed on the liquid outlet pipe 24. The cassette-type electric ball valve 25 can be automatically opened and closed under PLC control, while the cassette-type manual ball valve 26 is manually opened and closed. The two ball valves are used for liquid inlet and outlet control of the detection chamber. The first square observation window 22 and the second square observation window 23 are openings on the detection chamber housing 21 and are equipped with high-transparency glass. The first square observation window 22 is used for visual observation, and the high-definition industrial camera 27 takes pictures of the detection chamber through the second square observation window 23. The opening surface light source 28 is installed on the detection chamber housing 21 to provide illumination inside the opening. The online refractive index detector 29 is installed on the detection chamber housing 21, and the sensor extends into the interior of the detection chamber housing 21 to collect data and measure the refractive index. The detection chamber hose interface 33 and the detection chamber water outlet hose interface 34 are used to connect the connecting hose 11, respectively. The detection chamber hose interface 33 is used for liquid intake of the particle counter 9, and the detection chamber water outlet hose interface 34 is used for liquid discharge of the particle counter 9.

[0075] The control device includes an electrical control box 5, which houses a PLC. A display screen box 2 is located at one end of the electrical control box 5, which houses a display screen. A vehicle identifier 12 is installed on the outside of the electrical control box 5. A three-color alarm 13 and an audible and visual alarm 3 are installed on the outside of the upper surface of the waste liquid recovery storage tank 4 for indicating various stages of operation. The display screen, the three-color alarm 13, and the audible and visual alarm 3 are all connected to the PLC signal.

[0076] The display screen is installed inside the display box 2 to display the detection parameters and results. The vehicle identifier 12 is used to detect and identify vehicles. The vehicle identification is an existing device that uses wireless transmission to identify license plate cards. If the interface protocol is a non-standard protocol, data acquisition can be performed by setting a communication card in the detection box that is converted to a standard protocol. The three-color alarm light and the audible and visual alarm 3 are used to indicate the working stage.

[0077] The recycling device includes a waste liquid recycling storage tank 4, on which a waste liquid tank level gauge 15 is installed. A drain pump 17 is installed on the outer upper surface of the waste liquid recycling storage tank 4. A drain pump suction pipe 18 and a drain pump suction pipe bottom valve 19 are installed inside the storage tank 4. The drain pump suction pipe 18 and the drain pump suction pipe bottom valve 19 are connected to the inlet of the drain pump 17, and the outlet of the drain pump 17 is connected to the drain pump outlet pipe 16.

[0078] Waste liquid is drawn out by the bottom valve 19 of the drain pump pipe, the drain pump pipe 18, and the drain pump 17, and then discharged to the outside of the device through the drain pump outlet pipe 16.

[0079] The chassis assembly includes a frame 6, tires 7 and a hand-cranked jack 8, wherein the tires 7 and the hand-cranked jack 8 are mounted on the frame 6.

[0080] Tire 7 is used for towing, hand jack 8 can be used for support and fixation, and the front section of frame 6 can be used for traction connection and directional control of the device.

[0081] The working principle of this device is to detect the refractive index of the liquid using an online refractometer 29, and obtain the freezing point value by referring to the refractive index, concentration, and freezing point comparison table of the de-icing liquid; and to detect the turbidity of the liquid using a particle counter 9 for vehicle identification.

[0082] This device can be divided into automatic and manual modes, which can be switched between manual and automatic modes using a selector switch on the panel. In manual mode, system linkage and analysis are not possible; it is used for controlling a single device. In automatic mode, the system analyzes and detects according to a pre-set sequence and outputs the detection results.

[0083] This application involves fixed-point installation at refueling stations, automatically identifying de-icing truck information, and collecting de-icing fluid samples. It autonomously performs testing, displays test results, determines fluid suitability, and stores test results. This improves the sampling and testing efficiency of de-icing fluid nozzles in de-icing trucks, optimizing multiple steps of the entire testing process to be completed within a single station. When used in conjunction with refueling stations, it improves refueling efficiency and enhances airport winter operational capabilities. This application can improve de-icing operational efficiency: it integrates sampling, testing, display, and data retention, optimizing multiple steps of the entire testing process to be completed within a single station. It can reduce the current testing time from 10 minutes to 4 minutes, allowing de-icing trucks to be quickly deployed for de-icing and anti-icing operations. The reduced testing time per truck is expected to be sufficient to complete routine de-icing work for 1.5 Category C aircraft, reducing the time aircraft spend waiting for de-icing vehicles and improving airport on-time performance and operational capabilities.

[0084] Currently, de-icing fluid sampling and testing are handled by dedicated personnel. However, the use of an automatic de-icing fluid testing device can replace these personnel. At present, each refilling station requires one sampling and testing personnel depending on its operating conditions. If three refilling stations are operating simultaneously, three personnel can be reduced. The testing personnel work in three shifts, resulting in a total reduction of nine personnel. Based on labor costs, this can reduce expenses by approximately 100,000 to 300,000 yuan per year during the de-icing season.

[0085] Using standardized equipment for testing can make the test results more accurate, and at the same time, the test results can be displayed and recorded automatically, thus avoiding the influence of human factors on the results from the source.

[0086] It can achieve the entire detection process without ground personnel, preventing injury from accidental operation.

[0087] The entire process is carried out in a closed system, which greatly reduces the risk of de-icing fluid spillage. At the same time, the waste liquid after testing is automatically collected, which facilitates subsequent treatment.

Claims

1. An automatic deicing fluid detection device, characterized by: The device comprises a sample collection device, a detection device, a control device, a recovery device and a chassis device, wherein the chassis device is provided with the collection device, the detection device, the control device and the recovery device respectively; The collection device is used for collecting liquid; The detection device is used for detecting the refractive index of liquid and the data of particles in liquid; The control device is used for controlling the operation of each component in the detection device; The recovery device is used for storing and emptying waste liquid; The chassis device is used for bearing, pulling and fixing the whole device; The collection device is connected with the detection device, the control device is arranged in the detection device, and the detection device is connected with the recovery device.

2. The automatic deicing fluid detection apparatus of claim 1, wherein: The sample collection device comprises a collection box (1), a sampling collection groove is arranged in the collection box (1), a sampling port and an overflow port are arranged on the sampling collection groove, the sampling collection groove is communicated with a detection cavity through a pipeline, and the overflow port is communicated with a waste liquid recovery storage tank (4) through a flow guide pipe (20).

3. The automatic deicing fluid detection apparatus of claim 1, wherein: The detection device comprises a detection cavity, a capacitive liquid level sensor (14), an online refractive detection instrument (29) and a particle counter (9); the detection cavity is connected with a connecting hose (11), the connecting hose (11) is connected with the particle counter (9) through a particle counter liquid inlet pump (10), the capacitive liquid level sensor (14) is arranged in the detection cavity, the online refractive detection instrument (29) is arranged on the side of the detection cavity, and the sensor of the online refractive detection instrument (29) is arranged in the detection cavity shell (21).

4. The automatic deicing fluid detection apparatus of claim 3, wherein: The detection cavity comprises a detection cavity shell (21), the top of the detection cavity shell (21) is communicated with a liquid inlet pipeline, the bottom of the detection cavity shell (21) is communicated with a liquid outlet pipeline (24), first and second square observation windows (22) and (23) are respectively arranged on the two sides of the detection cavity shell (21), the first and second square observation windows (22) and (23) are provided with high-transparency glass, a high-definition industrial camera (27) and an open-face light source (28) are connected to the second square observation window (23), a cassette type manual ball valve (26) and a cassette type electric ball valve (25) are sequentially arranged on the liquid outlet pipeline (24), and a sampling valve (32) is connected to one side of the detection cavity shell (21).

5. The automatic deicing fluid detection apparatus of claim 4, wherein: The capacitive liquid level sensor (14) is sleeved with a liquid level sensor sleeve (31), and the liquid level sensor sleeve (31) is arranged in the detection cavity shell (21).

6. The automatic deicing fluid detection apparatus of claim 4, wherein: The detection cavity shell (21) is further provided with a detection cavity hose interface (33), and the liquid outlet pipeline (24) is provided with a detection cavity water outlet hose interface (34).

7. The automatic deicing fluid detection apparatus of claim 1, wherein: The control device comprises an electric control box (5) in which a PLC is installed, one end of the electric control box (5) is provided with a display screen box (2), a display screen is installed in the display screen box (2), a vehicle identifier (12) is installed outside the electric control box (5), a three-color alarm (13) and a sound-light alarm (3) are installed on the outer surface of the upper surface of a waste liquid recovery tank (4), and the display screen, the three-color alarm (13) and the sound-light alarm (3) are connected with the PLC signal.

8. The automatic deicing fluid detection apparatus of claim 1, wherein: The recovery device comprises a waste liquid recovery tank (4), a waste liquid tank liquid level meter (15) is arranged on the waste liquid recovery tank (4), a liquid discharge pump (17) is installed on the outer surface of the upper surface of the waste liquid recovery tank (4), a liquid discharge pump liquid suction pipe (18) and a liquid discharge pump liquid suction pipe bottom valve (19) are installed in the waste liquid recovery tank (4), the liquid discharge pump liquid suction pipe (18) and the liquid discharge pump liquid suction pipe bottom valve (19) are connected with the inlet of the liquid discharge pump (17), and the outlet of the liquid discharge pump (17) is connected with a liquid discharge pump liquid discharge pipe (16).

9. The automatic deicing fluid detection apparatus of claim 1, wherein: The chassis device comprises a frame (6), a tire (7) and a hand-operated jack (8), the tire (7) and the hand-operated jack (8) are installed on the frame (6).

Images