Aircraft self-cleaning double-color smoke generator system

Abstract

An aircraft self-cleaning double-color smoke generator system, comprising a pressurizing conveying device (1), a control device (2), a smoke generating liquid tank (5), a system air source (6), pressurizing air paths (7), cleaning air paths (8), smoke generating liquid paths (9), and nozzles (10). The pressurizing conveying device (1) and the control device (2) are mounted in an aircraft respectively, and the pressurizing conveying device (1) is provided with an onboard bleed air interface (3) used for introducing the system air source (6) and a ground interface (4) used for introducing a ground air source; the control device (2) is connected to the pressurizing conveying device (1) by means of the cleaning air paths (8); the smoke generating liquid tank (5) is connected to the pressurizing conveying device (1) by means of the pressurizing air paths (7); the control device (2) is connected to the smoke generating liquid tank (5) by means of the smoke generating liquid paths (9); in addition, the nozzles (10) are arranged at the rear end of the control device (2).

Description

A self-cleaning dual-color smoke extraction system for aircraft

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 2023116068412, filed on November 29, 2023, entitled “A Self-Cleaning Dual-Color Smoke Extractor System for Aircraft,” which is incorporated herein by reference in its entirety. Technical Field

[0003] The present application relates to the technical field of smoke pulling devices, and in particular to a self-cleaning dual-color smoke pulling system for aircraft. Background Art

[0004] Aircraft smoke generator systems are used by professional performance aircraft for aerial performances, enabling the aircraft to atomize liquid smoke into smoke during flight. Typically, the smoke generator system of a smoke performance aircraft consists primarily of a pressurized delivery device, a control device, a smoke liquid tank, and a nozzle. The pressurized delivery device can be a high-pressure gas cylinder or a delivery pump. The high-pressure gas pressurizes the liquid smoke liquid and then delivers it to the nozzle via the control device, which then produces smoke through the control device. The pressurized delivery device and the control device are connected by pipes and installed in the smoke liquid tank, and the nozzle is installed at the engine tail nozzle. Because liquid smoke liquid is corrosive to smoke system components, the ducts and smoke nozzles need to be cleaned after the performance, resulting in a high maintenance workload for the smoke system.

[0005] Summary of the Invention

[0006] The technical problem solved by the present application is to provide a self-cleaning dual-color smoke extractor system for aircraft to solve the problems in the above-mentioned background technology.

[0007] The technical problem solved by this application is achieved by the following technical solutions:

[0008] A self-cleaning two-color smoke extraction system for aircraft, comprising a pressurized conveying device, a control device, a smoke extraction liquid tank, a system air source, a pressurized air circuit, a cleaning air circuit, a smoke extraction liquid circuit, a nozzle and a ground air source, wherein the pressurized conveying device and the control device are respectively installed inside the aircraft, and an onboard air bleed interface for introducing the system air source and a ground interface for introducing the ground air source are provided on the pressurized conveying device, the control device is connected to the pressurized conveying device via the cleaning air circuit, the smoke extraction liquid tank is connected to the pressurized conveying device via the pressurized air circuit, and the control device is connected to the smoke extraction liquid tank via the smoke extraction liquid circuit; and a nozzle is provided at the rear end of the control device.

[0009] In the present application, the smoke liquid box is provided with a front cavity single-color smoke outlet, a rear cavity single-color smoke outlet and a double-color smoke outlet.

[0010] In the present application, the smoke-drawing liquid circuit includes a front-chamber smoke-drawing liquid circuit, a rear-chamber smoke-drawing liquid circuit, and a two-color smoke-drawing liquid circuit.

[0011] In the present application, the booster delivery device relies on the high-pressure gas of the system gas source to boost and deliver the liquid smoke liquid in the smoke liquid tank. The high-pressure gas comes from the onboard system, and ground crew members do not need to additionally inflate the smoke liquid tank. The booster delivery device controls the on-off of the system gas source to achieve the high-pressure gas booster delivery function; the control device controls the on-off of the front chamber smoke liquid path and the rear chamber smoke liquid path of the smoke liquid tank. The front chamber smoke liquid path and the rear chamber smoke liquid path can be controlled separately or simultaneously to achieve front chamber single-color smoke, rear chamber single-color smoke or two-color smoke performances.

[0012] In this application, the dual-color cigarette drawer system has three working states:

[0013] 1. In the smoke-pulling performance state, the bleed air from the system air source passes through the booster conveying device and enters the smoke-pulling liquid tank for booster conveying of liquid smoke-pulling liquid. The liquid smoke-pulling liquid then passes through the control device and finally performs the smoke-pulling performance through the nozzle. The control device controls the smoke-pulling liquid tank to perform single-color smoke pulling in the front cavity, single-color smoke pulling in the rear cavity, or double-color smoke pulling;

[0014] 2. System cleaning state: when the smoke pulling performance stops, the booster conveying device is connected to the cleaning gas line to clean the control device and the smoke pulling liquid line;

[0015] 3. Ground maintenance status: When the smoke extractor system is in the ground maintenance status, manually control the booster conveying device and the control device to perform the smoke extractor system maintenance work. At this time, the air source is the system air source or the ground air source.

[0016] Beneficial effects: The pressurized air source used for the performance in this application comes from the on-board system bleed air, and the air source for cleaning can come from the on-board system bleed air (at the same time, when the ground engine is shut down and there is no system bleed air, the relevant ground cleaning, inspection and other work can be completed through the ground interface), which is convenient for blowing away the large amount of liquid smoke liquid remaining during the smoke-pulling performance, so as to achieve the cleaning of the control device and the smoke-pulling liquid circuit, effectively improve the reliability of the smoke-pulling system, and greatly reduce the maintenance work of the smoke-pulling system by ground staff; this smoke-pulling system reduces the traditional gas cylinder gas source method, eliminates the gas source space of the gas cylinder, and thus reduces the space and weight on the aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG1 is a schematic structural diagram of a preferred embodiment of the present application. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by this application easy to understand, the application is further explained below with reference to specific diagrams.

[0019] Referring to Figure 1, a self-cleaning two-color smoke extraction system for aircraft includes a pressurized conveying device 1, a control device 2, an onboard air bleed interface 3, a ground interface 4, a smoke extraction liquid tank 5, a system air source 6, a pressurized air path 7, a cleaning air path 8, a smoke extraction liquid path 9, a nozzle 10 and a ground air source 11, wherein the pressurized conveying device 1 and the control device 2 are respectively installed inside the aircraft, and an onboard air bleed interface 3 for introducing the system air source 6 and a ground interface 4 for introducing the ground air source 11 are provided on the pressurized conveying device 1, the control device 2 is connected to the pressurized conveying device 1 through the cleaning air path 8, the smoke extraction liquid tank 5 is connected to the pressurized conveying device 1 through the pressurized air path 7, and the control device 2 is connected to the smoke extraction liquid tank 5 through the smoke extraction liquid path 9; at the same time, a nozzle 10 is provided at the rear end of the control device 2.

[0020] In this embodiment, the smoke liquid box 5 is provided with a front cavity single-color smoke outlet, a rear cavity single-color smoke outlet and a double-color smoke outlet.

[0021] In this embodiment, the smoke-drawing liquid path 9 includes a front-chamber smoke-drawing liquid path, a rear-chamber smoke-drawing liquid path, and a two-color smoke-drawing liquid path.

[0022] In this embodiment, the booster conveying device 1 relies on the high-pressure gas of the system gas source 6 to boost and convey the liquid smoke liquid in the smoke liquid tank 5. The high-pressure gas comes from the onboard system, and ground staff do not need to additionally inflate the smoke liquid tank 5. The booster conveying device 1 controls the on-off of the system gas source 6 to realize the high-pressure gas booster conveying function; the control device 2 controls the on-off of the front chamber smoke liquid path and the rear chamber smoke liquid path of the smoke liquid tank 5. The front chamber smoke liquid path and the rear chamber smoke liquid path can be controlled separately or simultaneously to realize the front chamber single-color smoke, the rear chamber single-color smoke or two-color smoke performance.

[0023] In this embodiment, after the smoke pulling stops in the air, the booster conveying device 1 is connected to the cleaning gas path 8, and the cleaning gas path 8 is connected to the system gas source 6, and the control device 2 and the smoke pulling liquid path 9 are blown and cleaned by the system gas source 6;

[0024] When the aircraft is on the ground, the smoke extractor system can enter the ground maintenance state, and the cleaning air path 8 of the booster conveying device 1 can be manually controlled to be on and off to realize ground maintenance of the smoke extractor system; the air source in the maintenance state is the system air source 6 or the ground air source 4.

[0025] In this embodiment, the dual-color cigarette drawer system has the following three working states.

[0026] 1. In the smoke-drawing performance state, the bleed air from the system air source 6 passes through the booster conveying device 1 and enters the smoke-drawing liquid tank 5 for boosting and conveying liquid smoke-drawing liquid. The liquid smoke-drawing liquid then passes through the control device 2 and finally passes through the nozzle 10 for smoke-drawing performance. The control device 2 controls the smoke-drawing liquid tank 5 to draw single-color smoke from the front chamber, single-color smoke from the rear chamber, or two-color smoke.

[0027] 2. System cleaning state: when the smoke pulling performance stops, the booster conveying device 1 is connected to the cleaning gas path 8 to clean the control device 2 and the smoke pulling liquid path 9;

[0028] 3. Ground maintenance state: When the smoke extractor system is in the ground maintenance state, the booster conveying device 1 and the control device 2 are manually controlled to perform maintenance work on the smoke extractor system. The air source at this time is the system air source 6 or the ground air source 4;

[0029] The smoke extractor system has been applied to specific aircraft models. The system has high system integration and simple control, and is easy to maintain and highly reliable.

[0030] The above shows and describes the basic principles, main features, and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present application. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application. These changes and improvements are intended to fall within the scope of the present application. The scope of protection claimed in this application is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning two-color smoke extractor system for aircraft, comprising a pressurized conveying device, a control device, a smoke extractor liquid tank, a system air source, a pressurized air circuit, a cleaning air circuit, a smoke extractor liquid circuit and a nozzle, in, The boost conveying device and the control device are respectively installed inside the aircraft, the boost conveying device is provided with an onboard air bleed interface for introducing the system air source, the control device is connected to the boost conveying device through the cleaning air path, the smoke-drawing liquid tank is connected to the boost conveying device through the boost air path, and the control device is connected to the smoke-drawing liquid tank through the smoke-drawing liquid path; a nozzle is provided at the rear end of the control device.

2. A self-cleaning dual-color smoke extractor system for aircraft according to claim 1, wherein: The booster delivery device is provided with a ground interface for introducing a ground gas source.

3. The aircraft self-cleaning dual-color smoke extractor system according to claim 1, wherein: The smoke-drawing liquid box is provided with a front cavity single-color smoke-drawing outlet, a rear cavity single-color smoke-drawing outlet and a double-color smoke-drawing outlet.

4. The aircraft self-cleaning dual-color smoke extractor system according to claim 1, wherein: The smoke-drawing liquid circuit includes a front-chamber smoke-drawing liquid circuit, a rear-chamber smoke-drawing liquid circuit and a two-color smoke-drawing liquid circuit.

5. A self-cleaning dual-color smoke extractor system for aircraft according to any one of claims 1 to 4, wherein: The dual-color smoke pulling system has three working states: smoke pulling performance state, system cleaning state and ground maintenance state. Wherein, in the smoke-drawing performance state, the bleed air from the system air source passes through the booster delivery device and enters the smoke-drawing liquid tank to perform booster delivery of liquid smoke-drawing liquid; the liquid smoke-drawing liquid passes through the control device and performs smoke-drawing performance through the nozzle; the control device controls the smoke-drawing liquid tank to draw smoke in the front chamber in a single color, in the rear chamber in a single color, or in two colors; In the system cleaning state, when the smoke pulling performance stops, the booster conveying device is connected to the cleaning gas path to clean the control device and the smoke pulling liquid path; In the ground maintenance state, when the smoke puller system is in the ground maintenance state, the booster conveying device and the control device are manually controlled to maintain the smoke puller system, and the air source at this time is the system air source or the ground air source.

Images