CN205554607U - Airspeed tube with gas guide pipeline - Google Patents
Airspeed tube with gas guide pipeline Download PDFInfo
- Publication number
- CN205554607U CN205554607U CN201521031607.2U CN201521031607U CN205554607U CN 205554607 U CN205554607 U CN 205554607U CN 201521031607 U CN201521031607 U CN 201521031607U CN 205554607 U CN205554607 U CN 205554607U
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- China
- Prior art keywords
- pipe
- air entraining
- check valve
- pitot
- entraining pipe
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Abstract
The utility model discloses an airspeed tube with gas guide pipeline relates to airspeed tube technical field. An airspeed tube with gas guide pipeline, contains total pressure pipe (5), gas guide pipeline (3) and check valve (4), wherein, total pipe (5) of pressing is connected to gas guide pipeline (3) one end, and the air supply is connected to the other end, install on arousing tub (3) check valve (4) for air supply and total intercommunication and disconnection of pressing pipe (5) on the control gas guide pipeline (3). The utility model has the advantages of: the utility model discloses a total press to be provided with on the pipe arouse the pipe, be provided with the check valve on arousing the pipe, the airspeed tube is under normal operating conditions, the check valve is closed, presses the pipe owing to freeze or foreign matter when blockking up when total, opens the check valve, air supply through arousing the pipe can be with always press the knot melting ice that manages or with the foreign matter blowdown, airspeed tube work is more reliable.
Description
Technical field
The utility model relates to pitot technical field, is specifically related to a kind of pitot with air entraining pipe.
Background technology
Pitot is as the core component in aero pilot-static pressure system, and pitot breaks down and will fly aircraft
Row safety produces and has a strong impact on.The most widely used aircraft airspeed is measured sensor and mostly is pressure type L-type sky
Speed pipe, its advantage is that low cost, efficiency are high, highly reliable, but in view of airworthiness regulation FAR25.1323h
In about each air speed instruction system arrangement must prevent as far as possible due to moisture, dust or other foreign material
Malfunctioning or produce gross error requirement, and in FAR25.1323i about each air speed instruction system must join
A standby pitot that can heat or equivalent manners prevent the requirement malfunctioning due to icing, therefore the sky used
Fast pipe etc. all uses the mode of electricity heating to block up to prevent ice, and the mode using compressed air to brush prevents different
Thing blocks.If but if pitot heating system lost efficacy, the pitot mouth of pipe will produce dynamic because of ice blockage
Hold up difference so that airspeed-indicator lost efficacy or distortion, it will bring great misguidance to pilot.Foreign matter blocks up
Plug occurs in ground more, if cleaning the most also can have serious consequences after sliding race or taking off.
Utility model content
The purpose of this utility model is to provide a kind of pitot with air entraining pipe, to solve or at least to alleviate existing
The problem at least one place in the presence of technology of having powerful connections.
The technical solution of the utility model is: provide a kind of pitot with air entraining pipe, comprise stagnation pressure tube,
Air entraining pipe and check valve, wherein, air entraining pipe one end connects stagnation pressure tube, and the other end connects source of the gas；Check valve is pacified
It is contained in and causes on pipe, be used for connection and the disconnection of source of the gas and the stagnation pressure tube controlling on air entraining pipe.
Preferably, described air entraining pipe is one-body molded with stagnation pressure tube.
Preferably, described source of the gas is high temperature and high pressure gas.
Preferably, described high temperature and high pressure gas is produced by engine compresses.
Preferably, described air entraining pipe and stagnation pressure tube pass through Flange joint.
Preferably, it is provided with seal between the joint face of described Flange joint.
The utility model has the advantage of: be provided with on stagnation pressure tube of the present utility model and cause pipe, cause on pipe
Be provided with check valve, pitot in normal operation, closed check valve, when stagnation pressure tube due to freeze or
During foreign matters from being blocked, open check valve, by causing the source of the gas of pipe can be by the melt ice of stagnation pressure tube or by different
Thing blows down, and pitot work is relatively reliable.
Air entraining pipe is one-body molded with stagnation pressure tube, connects air-tightness good, it is not necessary to manual installation, easy to use.
Accompanying drawing explanation
Fig. 1 is the schematic diagram with the pitot causing pipe of the present utility model.
Wherein: 1-pitot, 2-bearing, 3-causes pipe, 4-check valve, 5-stagnation pressure tube.
Detailed description of the invention
Clearer, below in conjunction with this reality for the purpose making the utility model implement, technical scheme and advantage
With the accompanying drawing in new embodiment, the technical scheme in the utility model embodiment is carried out more detailed retouching
State.In the accompanying drawings, the most same or similar label represents same or similar element or has identical
Or the element of similar functions.Described embodiment is a part of embodiment of the utility model rather than all
Embodiment.The embodiment described below with reference to accompanying drawing is exemplary, it is intended to be used for explaining this practicality
Novel, and it is not intended that to restriction of the present utility model.Based on the embodiment in the utility model, ability
The every other embodiment that territory those of ordinary skill is obtained under not making creative work premise, all belongs to
Scope in the utility model protection.Below in conjunction with the accompanying drawings embodiment of the present utility model is carried out specifically
Bright.
In description of the present utility model, it is to be understood that term " " center ", " longitudinally ", " laterally ",
"front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward " etc. refer to
The orientation shown or position relationship, for based on orientation shown in the drawings or position relationship, are for only for ease of description originally
Utility model and simplification describe rather than indicate or imply that the device of indication or element must have specific side
Position, with specific azimuth configuration and operation, therefore it is not intended that restriction to the utility model protection domain.
As it is shown in figure 1, a kind of pitot with air entraining pipe, comprise pitot 1, bearing 2, stagnation pressure tube
5, air entraining pipe 3 and check valve 4, wherein, air entraining pipe 3 one end connects stagnation pressure tube 5, and the other end connects source of the gas；
Check valve 4 is arranged on and causes on pipe 3, for control the connection of source of the gas on air entraining pipe 3 and stagnation pressure tube 5 with
Disconnect.
Being provided with on stagnation pressure tube of the present utility model and cause pipe, cause and be provided with check valve on pipe, pitot exists
Under normal operating conditions, closed check valve, when stagnation pressure tube is due to icing or foreign matters from being blocked, open check valve,
By cause pipe source of the gas can by the melt ice of stagnation pressure tube or by foreign matter blow down, pitot work more may be used
Lean on.
In the present embodiment, air entraining pipe 3 is one-body molded with stagnation pressure tube 5.Have an advantage in that, connect air-tightness
Good, it is not necessary to manual installation, easy to use.
It is understood that cause pipe 3 and stagnation pressure tube 5 according to actually used demand, it is also possible to be set to point
From formula.Such as, in an alternative embodiment, air entraining pipe 3 and stagnation pressure tube 5 pass through Flange joint.Method
It is provided with seal between the blue joint face connected.Seal can select red copper pad, has an advantage in that, its
Material is softer, is easily deformed after compression, and red copper pad belongs to metallic gasket, the environment temperature that can bear
Scope is wide, it is adaptable to the occasion that variation of ambient temperature is bigger.
In the present embodiment, source of the gas is high temperature and high pressure gas.Have an advantage in that, either the air of stagnation pressure tube
Port occurs to freeze or due to foreign matters from being blocked, all can be by high temperature and high pressure gas by melt ice or by different
Thing blows down, it is to avoid for freezing and foreign matter is respectively adopted the situation of high-temperature gas and compressed gas.
In the present embodiment, high temperature and high pressure gas is produced by engine compresses.
It is understood that cause the gas of pipe 3 can also obtain source of the gas from miscellaneous equipment.Such as, one
In individual alternative, the source of the gas causing pipe 3 to obtain is the hot gas that on machine, heat-exchange system is discharged；Its advantage exists
In, improve resource utilization；In another alternative, pipe 3 is caused to be provided with air blast specially,
The gas that air blast provides flows to cause pipe 3 after heating, has an advantage in that, pitot has independence
Source of the gas, easy to maintenance.
The specific works process of the present embodiment is: pitot 1 is fixed on bearing 2, air entraining pipe 3
Communicating with stagnation pressure tube 5, air entraining pipe 3 is provided with check valve 4, air entraining pipe 3 can be with high temperature bleed or compression
Air communicates.When pitot 1 occurs that ice blocks up, opening check valve 4, high temperature bleed enters through air entraining pipe 3
Stagnation pressure tube 5, heats to pitot 1, reaches deicing purpose, prevents pitot detection malfunctioning.
When foreign matters from being blocked occurs in pitot 1, check valve 4 is opened, and compressed air enters always through air entraining pipe 3
Pressure pipe 5, brushes pitot 1, reaches to understand the purpose of foreign matter, prevents pitot detection malfunctioning.
Last it is noted that above example is only in order to illustrate the technical solution of the utility model, rather than
It is limited.Although the utility model being described in detail with reference to previous embodiment, this area general
Lead to and skilled artisans appreciate that the technical scheme described in foregoing embodiments still can be repaiied by it
Change, or wherein portion of techniques feature is carried out equivalent；And these amendments or replacement, do not make phase
The essence answering technical scheme departs from the spirit and scope of the utility model each embodiment technical scheme.
Claims (6)
1., with a pitot for air entraining pipe, comprise stagnation pressure tube (5), it is characterised in that: also comprise air entraining pipe (3) and check valve (4), wherein,
Described air entraining pipe (3) one end connects stagnation pressure tube (5), and the other end connects source of the gas；
Described check valve (4) is arranged on and causes on pipe (3), is used for connection and the disconnection of source of the gas and the stagnation pressure tube (5) controlling on air entraining pipe (3).
2. as claimed in claim 1 with the pitot of air entraining pipe, it is characterised in that: described air entraining pipe (3) is one-body molded with stagnation pressure tube (5).
3. as claimed in claim 2 with the pitot of air entraining pipe, it is characterised in that: described source of the gas is high temperature and high pressure gas.
4. as claimed in claim 3 with the pitot of air entraining pipe, it is characterised in that: described high temperature and high pressure gas is produced by engine compresses.
5. as claimed in claim 1 with the pitot of air entraining pipe, it is characterised in that: described air entraining pipe (3) and stagnation pressure tube (5) pass through Flange joint.
6. as claimed in claim 5 with the pitot of air entraining pipe, it is characterised in that: it is provided with seal between the joint face of described Flange joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521031607.2U CN205554607U (en) | 2015-12-11 | 2015-12-11 | Airspeed tube with gas guide pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521031607.2U CN205554607U (en) | 2015-12-11 | 2015-12-11 | Airspeed tube with gas guide pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205554607U true CN205554607U (en) | 2016-09-07 |
Family
ID=56823162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521031607.2U Active CN205554607U (en) | 2015-12-11 | 2015-12-11 | Airspeed tube with gas guide pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205554607U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021036388A1 (en) * | 2019-08-30 | 2021-03-04 | 山东太古飞机工程有限公司 | Automatic separating protective cover for pitot tube of civil aircraft |
-
2015
- 2015-12-11 CN CN201521031607.2U patent/CN205554607U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021036388A1 (en) * | 2019-08-30 | 2021-03-04 | 山东太古飞机工程有限公司 | Automatic separating protective cover for pitot tube of civil aircraft |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |