Electro-adsorption dust filtering air outlet structure of environmental control system

Abstract

The utility model belongs to the technical field of helicopter environmental control systems, and particularly relates to an electro-adsorption dust filtering air outlet structure of an environmental control system. Comprising a fixed outer frame, a rotating shaft assembly, an air guide plate, a steering engine and a connecting rod assembly. The fixed outer frame is a rectangular frame and is installed at the position of an air outlet of the environmental control system, and a plurality of air deflectors are installed on the fixed outer frame through rotating shaft assemblies. The multiple air deflectors are connected through the connecting rod assembly, and the steering engine is connected with and drives the connecting rod assembly so as to drive the multiple air deflectors to be opened or closed together.

Description

Technical Field

[0001] The utility model belongs to the technical field of helicopter environmental control systems, and particularly relates to an electric adsorption dust filtering air outlet structure of an environmental control system. Background Technique

[0002] The helicopter ventilation and heating system and the air conditioning system are mainly used in winter, summer or rainy weather conditions. The centralized use time is seasonal. The ventilation and heating system has long pipeline wiring, and dust is likely to accumulate in the ventilation pipeline. The air source introduced by the ventilation and heating system comes from the engine and the outside air, and the gas itself contains some dust. After passing through the ventilation pipeline and the filtering device, some dust still enters the narrow cockpit space of the helicopter, affecting the environment where the pilot is located.

[0003] At present, the main method for dust treatment in domestic and foreign environmental control systems is to add a filter screen at the outlet position of the ventilation pipeline to remove dust by physical means. This filtering method causes dust to accumulate and block at the air outlet, which has a certain impact on the air volume. It is necessary to clean the filter element and the ventilation pipeline in time, and it cannot completely ensure that dust does not enter the cockpit. Content of the Utility Model

[0004] Purpose of the utility model: To propose an electric adsorption dust filtering air outlet structure of an environmental control system, and to realize the adsorption and filtering of dust in the air entering the helicopter cockpit through a wind guiding plate with a dust filtering function that collects dust by the principle of electric adsorption and is installed at the air outlet of the ventilation and heating system.

[0005] Technical Solution

[0006] An electric adsorption dust filtering air outlet structure of an environmental control system includes: a fixed outer frame, a rotating shaft assembly, a wind guiding plate, a steering gear, and a connecting rod assembly;

[0007] The fixed outer frame is a rectangular frame, installed at the air outlet position of the environmental control system, and a plurality of wind guiding plates are installed on the fixed outer frame through the rotating shaft assembly;

[0008] The plurality of wind guiding plates are connected through a connecting rod assembly, and the steering gear is connected to and drives the connecting rod assembly to drive the plurality of wind guiding plates to open or close together.

[0009] Further, the wind guiding plate is airfoil-shaped, with an open honeycomb on one side and an arc-shaped dust discharge port at the bottom.

[0010] Further, the bottom of the wind guiding plate is an inclined surface, and an arc-shaped dust discharge port is provided at the lowest point of the inclined surface.

[0011] Further, a circular dust collection box is provided at the bottom of the fixed outer frame for collecting the dust discharged from the arc-shaped dust discharge port of the wind guiding plate.

[0012] Further, a positive electrode rod and a negative electrode rod are respectively arranged at the leading edge and the trailing edge of the wind guiding plate, and an electric field is formed by power supply.

[0013] Furthermore, the positive electrode rod is located at the leading edge of the air guide plate, and the negative electrode rod is located at the trailing edge of the air guide plate.

[0014] In summary, the beneficial effects of the present utility model are as follows:

[0015] 1) In the present invention, dust passing through is captured by two methods of dust interception and electrostatic adsorption at the air outlet of the environmental control heating system to achieve air filtration and purification;

[0016] 2) The present invention controls the connection and disconnection of the power supply through the opening and closing state of the air guide plate, thereby realizing the capture and release of dust particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the electrostatic adsorption dust filtering air outlet.

[0018] Figure 2 It is a schematic diagram of the unfolded state of the electrostatic adsorption dust filtering air outlet.

[0019] Figure 3 It is a schematic diagram of the closed state of the electrostatic adsorption dust filtering air outlet.

[0020] Figure 4 It is a schematic structural diagram of the air guide plate.

[0021] Figure 5 It is a schematic circuit diagram of the air guide plate.

[0022] 1. Fixed outer frame; 2. Rotating shaft assembly; 3. Air guide plate; 4. Servo; 5. Linkage assembly; 6. Honeycomb; 7. Ash discharge port; 8. Dust collection box; 9. Power supply; 10. Positive electrode rod; 11. Negative electrode rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] An electrostatic adsorption dust filtering air outlet structure for an environmental control system is applied to the dust removal and filtering of a helicopter environmental control system.

[0024] The electrostatic adsorption dust filtering air guide plate is composed of an actuating part and an electrostatic adsorption part. The actuating part includes: a fixed outer frame 1, a rotating shaft assembly 2, an air guide plate 3, a servo 4, a linkage assembly 5, a honeycomb 6, an ash discharge port 7, and a dust collection box 8;

[0025] The electrostatic adsorption structure includes: a power supply 9, a positive electrode rod 10, and a negative electrode rod 11

[0026] Device positional relationship

[0027] 1 Install the fixed outer frame 1 of the air guide plate at the air outlet of the environmental control system;

[0028] 2 Install 4 air guide plates 3 on the fixed outer frame through the rotating shaft assembly 2;

[0029] Both the upper and lower ends of the air deflector 3 are equipped with rotating shaft assemblies 2, and the opening and closing and the air outlet direction are controlled by deflecting around the rotating shaft assemblies.

[0030] The air deflector 3 is airfoil-shaped, with a single-sided open honeycomb 6 layout and an arc-shaped dust discharge port 7 at the bottom.

[0031] A servo motor 4 and a connecting rod assembly 5 are installed at the top of the air deflector 3.

[0032] A power supply 9 is installed inside the air deflector, and a positive electrode rod 10 and a negative electrode rod 11 are provided at the leading edge and the trailing edge of the air deflector.

[0033] A loop-shaped dust collection box 8 is installed at the bottom of the fixed outer frame 1.

[0034] Device usage method

[0035] 1. When the environmental control system is not turned on, the four air deflector surfaces at the electroadsorption dust filter outlet are in a closed state parallel to the fixed outer frame 1.

[0036] 2. When the environmental control system is turned on, the four air deflectors 3 installed at the air outlet position are actuated by the servo motor 4 and rotate around the rotating shaft assembly 2 through the connecting rod assembly 5 to a position forming a certain angle with the fixed outer frame 1. At the same time, the pilot can also manually change the angle between the air deflector and the air outlet to change the air outlet direction of the environmental control system's air intake.

[0037] 3. When the air intake passes through the air deflector 3, the gas enters the interior of the air deflector through the honeycomb 6 openings, collides with the inner wall to change the air flow direction, the kinetic energy of the dust particles entrained in the air flow is released after colliding with the air deflector, the dust particles sink to the bottom of the air deflector under the action of gravity, the bottom of the air deflector is inclined, the dust slides down the inclined surface to the bottom end, passes through the arc-shaped dust discharge port 7, and falls into the loop-shaped dust collection box 8 installed at the bottom of the fixed outer frame 1.

[0038] 4. When the environmental control system is turned on, the power supply inside the air deflector 3 is connected, supplying power to the positive electrode rod 10 at the leading edge and the negative electrode rod 11 at the trailing edge. The air deflector forms a non-uniform electric field, and the dust particles in the air flow containing dust are polarized and adsorbed at both ends of the electric shock rods when passing through the air deflector.

[0039] 5. After the environmental control system stops working, the air deflector 3 returns to its original position, the power supply 9 is turned off, and the dust falls into the dust collection box 8 through the arc-shaped dust discharge port 7 under the action of gravity to complete the collection of dust.

Claims

1. An air outlet structure of an electroadsorption ash filter for an environmental control system, characterized in that: The structure includes: a fixed outer frame, a rotating shaft assembly, a wind guide plate, a servo motor, and a connecting rod assembly; The fixed outer frame is a rectangular frame, installed at the air outlet position of the environmental control system. A plurality of wind guide plates are installed on the fixed outer frame through the rotating shaft assembly; The plurality of wind guide plates are connected by the connecting rod assembly. The servo motor is connected to and drives the connecting rod assembly to drive the plurality of wind guide plates to open or close together.

2. The structure according to claim 1, wherein: The wind guide plate is airfoil-shaped, with an open honeycomb on one side and an arc-shaped dust discharge port at the bottom.

3. The structure according to claim 2, wherein: The bottom of the wind guide plate is an inclined plane, and an arc-shaped dust discharge port is provided at the lowest point of the inclined plane.

4. The structure according to claim 3, wherein: A circular dust collection box is provided at the bottom of the fixed outer frame for collecting the dust discharged from the arc-shaped dust discharge port of the wind guide plate.

5. The structure according to claim 4, wherein: A positive electrode rod and a negative electrode rod are respectively arranged at the leading edge and the trailing edge of the wind guide plate, and an electric field is formed by power supply.

6. The structure according to claim 5, wherein: The positive electrode rod is located at the leading edge of the wind guide plate, and the negative electrode rod is located at the trailing edge of the wind guide plate.

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