CN207433810U - Icing detector - Google Patents
Icing detector Download PDFInfo
- Publication number
- CN207433810U CN207433810U CN201720607360.7U CN201720607360U CN207433810U CN 207433810 U CN207433810 U CN 207433810U CN 201720607360 U CN201720607360 U CN 201720607360U CN 207433810 U CN207433810 U CN 207433810U
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- China
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- air
- radome fairing
- icing
- velocity
- playpipe
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Abstract
A kind of icing detector disclosed in the utility model, it is desirable to provide a kind of simple in structure, the icing detector of dependable performance, the utility model is achieved by following technical proposals：Icing detection bar（3）Positioned at air inlet（4）Near, playpipe（2）Positioned at radome fairing（1）Contraction section, to playpipe（2）Bottom compression contracting air, air is from radial jet nozzle（6）It projects at a high speed, the high-velocity jets of formation hit radial jet nozzle（6）Neighbouring static or velocity air drives static or velocity air together from gas outlet（5）Accelerated discharge after air discharge, forms negative pressure, extraneous air is under pressure differential effect, from air inlet inside radome fairing（4）Radome fairing is inhaled into, so as to be formed from air inlet（4）To gas outlet（5）One-way airflow.So that flow through icing detection bar（3）Air velocity accelerate.Solves aircraft, particularly helicopter low speed detection freezes the problem of difficult.
Description
Technical field
The utility model is related to a kind of icing detector, the icing detection that is used on more particularly to a kind of device that flies at low speed
Device, more particularly in the icing detector used on helicopter.
Background technology
When aircraft flight, icing meteorology condition is often inevitably met with, so that before windshield, the tail wing
The key positions such as edge, propeller, engine inlets, pitot freeze, and can not only cause flight vehicle aerodynamic penalty, resistance
Increase, lift reduce, and cause stall, and can decline engine power, windscreen visual field is unclear, related meter reading is not allowed.
Helicopter is in flight course, if the key positions such as rotor, tail-rotor freeze, it is likely that helicopter can be caused out of control, so as to make
Into accident.Therefore, freeze and directly influence the flight safety of aircraft.
Due to the harmfulness that aircraft freezes, people do a lot of work at the anti-icing aspect of aircraft accumulated ice：On the one hand change
Into the anti-icing equipment of aircraft, on the other hand strengthen the anti-icing of ground, deicing and check work.Even if the however anti-icing system of aircraft
It unites fairly perfect, but deicing, anti-icing system can not be attained by desired effect in all cases, and icing is still aircraft
One big hidden danger of flight.It is monitored therefore, it is necessary to the ice condition to aircraft and early warning.
At present, it is common to use icing detector be all rod-shaped mostly, this icing detection bar is generally directly installed on
Aircraft surfaces, when the air-flow containing super-cooling waterdrop or ice crystal flows through icing detection bar, super-cooling waterdrop or ice crystal and icing detection
Bar is hit, and icing detection bar is made to freeze, and realizes the monitoring to icing.But if the flying speed of aircraft is relatively low, due to sky
Gas phase is low to the speed of feeler lever, and so as to hit on feeler lever, to form ice less and can not detect.Especially for helicopter, not only fly
Scanning frequency degree is slow, and more since it has the rotor constantly rotated, the downwash flow that rotor generates is very mixed and disorderly, makes to flow through icing detection
The size and Orientation of the air-flow of bar all constantly changes, so that the ice shape of feeler lever is mixed and disorderly, seriously affects measurement accuracy.
Utility model content
When the utility model aims to solve the problem that aircraft low-speed operations, tied on icing detection bar less icy and helicopter
Air-flow the problem of caused icing detection is difficult in a jumble at ice detection bar, provide a kind of simple in structure, the icing of dependable performance is visited
Device is surveyed, the air velocity of icing detection bar can be flowed through by improving, and stablizes airflow direction, feeler lever is made to be more likely formed rule
Ice shape.
The utility model solves its technical problem the technical scheme adopted is that a kind of icing detector, including：Make air-flow
The radome fairing of steady flow, the playpipe for connecting firmly in radome fairing and ejecting high-velocity jets and icing detection bar, it is special
Sign is：Radome fairing is formed with the air inlet of connection outside atmosphere and gas outlet, icing detection bar are located near air inlet, playpipe
Positioned at radome fairing contraction section, projected at a high speed to 2 bottom compression contracting air of playpipe, and from radial jet nozzle, the high-speed jet of formation
The static or velocity air near radial jet nozzle is hit, drives static or velocity air together from the accelerated discharge in gas outlet 5, it is empty
After gas discharge, negative pressure is formed inside radome fairing, extraneous air is inhaled into radome fairing under pressure differential effect from air inlet 5, and
Accelerate in contraction section, so as to form the one-way airflow from air inlet 4 to gas outlet.
The utility model has the advantages that.
It is simple in structure.The utility model connects firmly icing detection bar, playpipe in radome fairing, the air inlet of radome fairing and
Gas outlet is connected with outside atmosphere, simple in structure.
Dependable performance.Playpipe is placed in the contraction section of radome fairing by the utility model, is projected from the spout of playpipe high
The air jet of speed, under the drive of jet stream, the static or velocity air of surrounding is accelerated, and is reached together from gas outlet external big
Gas, so as to form negative pressure inside radome fairing, external air can be inhaled into radome fairing from air inlet, utilize the receipts of radome fairing
Contracting section Lavalle principle, which improves, flows through the identical air velocity of icing detection bar airflow direction.So as to solve solution aircraft
The problem of low-speed operations and helicopter icing detection are difficult.
Description of the drawings
Fig. 1 is the front view of the utility model icing detector.
Fig. 2 is the left view of the utility model icing detector.
Fig. 3 is the sectional view along A-A of Fig. 2.
Fig. 4 is the B-B direction sectional view of Fig. 2.
In figure：1 radome fairing, 2 playpipes, 3 icing detection bars, 4 air inlets, 5 gas outlets, 6 radial jet nozzles.
Specific embodiment
Refering to Fig. 1-Fig. 4.In embodiment described below, a kind of icing detector, including：Make what steady air current flowed
Radome fairing 1, the playpipe 2 for connecting firmly in radome fairing and ejecting high-velocity jets and icing detection bar 3, radome fairing 1 are formed with
The connection air inlet 4 of outside atmosphere and gas outlet 5, icing detection bar 3 are located near air inlet 4, and playpipe 2 is located at radome fairing 1
Contraction section, compressed air project at a high speed by 2 bottom of playpipe, and from radial jet nozzle 6, form high-speed jet and hit radial jet nozzle
Static or velocity air near 6 drives static or velocity air to be discharged together from gas outlet 5 is accelerated, after air discharge,
Negative pressure is formed inside radome fairing, extraneous air is inhaled into radome fairing from air inlet 4, and adds in contraction section under pressure differential effect
Speed, so as to form the one-way airflow from air inlet 4 to gas outlet 5.
Claims (1)
1. a kind of icing detector, including：The radome fairing for flowing steady air current（1）, connect firmly in radome fairing and eject height
The playpipe of fast air jet（2）With icing detection bar（3）, it is characterised in that：Icing detection bar（3）Positioned at air inlet（4）It is attached
Closely, playpipe（2）Positioned at radome fairing（1）Contraction section, to playpipe（2）Bottom compression contracting air, air is from radial jet nozzle（6）It is high
Rapid fire goes out, and forms high-velocity jets and hits radial jet nozzle（6）Neighbouring static or velocity air drives static or velocity air
Together from gas outlet（5）Accelerated discharge after air discharge, forms negative pressure inside radome fairing, and extraneous air is made in pressure differential
Under, from air inlet（4）Radome fairing is inhaled into, so as to be formed from air inlet（4）To gas outlet（5）One-way airflow, make
The air velocity that icing detection bar must be flowed through is accelerated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720607360.7U CN207433810U (en) | 2017-05-27 | 2017-05-27 | Icing detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720607360.7U CN207433810U (en) | 2017-05-27 | 2017-05-27 | Icing detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207433810U true CN207433810U (en) | 2018-06-01 |
Family
ID=62396023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720607360.7U Active CN207433810U (en) | 2017-05-27 | 2017-05-27 | Icing detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207433810U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107200138A (en) * | 2017-05-27 | 2017-09-26 | 成都凯天电子股份有限公司 | Icing signal detecting device |
-
2017
- 2017-05-27 CN CN201720607360.7U patent/CN207433810U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107200138A (en) * | 2017-05-27 | 2017-09-26 | 成都凯天电子股份有限公司 | Icing signal detecting device |
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