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Sand control dust filter device and helicopter

A filter device and sand control technology, which is applied in the direction of combined device, dispersed particle filtration, and combustion of air inlet of power device, etc. It can solve the problems of high maintenance cost, easy blockage of filter screen by sand and dust, and increased air intake loss, etc., to achieve Low maintenance cost, reduced frequency of replacement and cleaning, and reduced air intake loss

Active Publication Date: 2022-03-25
AECC HUNAN AVIATION POWERPLANT RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The sand-proof and dust-filtering device provided by the present invention solves the technical problems that the filter screen of the existing blocking filter is easily blocked by sand and dust, the air intake loss increases after the blockage, and the maintenance cost is high

Method used

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  • Sand control dust filter device and helicopter
  • Sand control dust filter device and helicopter
  • Sand control dust filter device and helicopter

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Embodiment Construction

[0032] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in various ways defined and covered below.

[0033] figure 1 It is a structural schematic diagram of a sand control and dust filter device in a preferred embodiment of the present invention; figure 2 It is a schematic diagram of a three-dimensional model of a sand control and dust filter device in a preferred embodiment of the present invention; image 3 It is a structural schematic diagram of the sand control and dust filter device according to the second embodiment of the present invention; Figure 4 It is the trajectory diagram of particles with a particle size of 1 micron in the sand control module; Figure 5 It is the trajectory diagram of particles with a particle size of 5 microns in the sand control module; Figure 6 It is the trajectory diagram of particles with a particle size of 10 microns in ...

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Abstract

The invention discloses a sand-proof and dust-filtering device, which comprises a frame body with a ventilation channel, a filter and a flow divider. It is arranged on the side and separates the exhaust side of the frame to form a scavenging flow channel and a main flow channel. The filter includes a sand control module and a dust control module arranged obliquely along the airflow direction. The dust collision makes the dust in the dust-laden airflow flow into the clearing flow channel and be discharged under the action of collision and rebound with the wall surface and inertial force. The airflow after the secondary filtration is filtered, and the airflow after the secondary filtration flows into the main channel. The invention also discloses a helicopter. The sand-proof and dust-filtering device of the present invention reduces the frequency of replacement and cleaning of the dust-proof module, and the maintenance cost is low.

Description

technical field [0001] The invention relates to the technical field of filter devices, in particular to a sand control and dust filter device. The invention also relates to a helicopter. Background technique [0002] Due to the good maneuverability and flexibility of helicopters, they are often used to perform special tasks such as transportation, patrol, search and rescue, and often work in harsh natural environments such as sand, dust, salt spray, and rain. When the helicopter takes off, lands, flies near the ground or hovers, the downwash of the rotor and the circulation around the fuselage interact with the sand and dust on the ground surface to easily form a local dust environment. The sand and dust inhaled by the helicopter engine will cause wear of the rotating parts and fuel nozzles. and turbine blade gas film hole clogging, etc., resulting in performance degradation, a sharp shortening of life, and doubling of maintenance costs. Additionally, engine ingestion of f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D46/10B01D46/12B01D46/42B01D46/62B01D45/04B01D45/08B01D50/20B64D33/02
CPCB01D46/10B01D46/12B01D46/0041B01D45/04B01D45/08B01D46/4227B64D33/02B01D50/20
Inventor 徐大成黄开明陈冰李鑫王勋蔡明先
Owner AECC HUNAN AVIATION POWERPLANT RES INST
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