CN201545192U - Airplane oil tank flow restricting device - Google Patents
Airplane oil tank flow restricting device Download PDFInfo
- Publication number
- CN201545192U CN201545192U CN2009202704329U CN200920270432U CN201545192U CN 201545192 U CN201545192 U CN 201545192U CN 2009202704329 U CN2009202704329 U CN 2009202704329U CN 200920270432 U CN200920270432 U CN 200920270432U CN 201545192 U CN201545192 U CN 201545192U
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- CN
- China
- Prior art keywords
- restriction orifice
- flow restricting
- current
- oil tank
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
An airplane oil tank flow restricting device comprises an oil tank, an oil filling pipeline and an oil filling valve, and is characterized in that an independent flow restricting structure is also arranged on the oil filling pipeline; and the flow restricting structure is formed by a flow restricting plate fixed by a ring flange. The application facilitates the size adjustment of the opening of the restriction orifice and the maintenance of the restriction orifice during practical oil filling test, avoids wrong installation of the restriction orifice in the installation process, and can inspect whether the installation is correct without dismounting the restriction orifice during maintenance and troubleshooting.
Description
Affiliated technical field
The application relates to the aviation design field, particularly the oiling current-limiting apparatus of fuel tanker.
Background technology
As everyone knows, aircraft refuelling pipeline IFO intermediate fuel oil flow velocity causes electrostatic fire too soon easily, and aircraft pressure filling systematic design discipline requires: " flow velocity of fuel oil in pipeline is not more than 9m/s; The fuel filler flow velocity is not more than 3m/s ".In order to solve the too fast problem of flow velocity, need the design current-limiting apparatus before aircraft refuelling pipeline or the fuel tank inlet.At present designed current-limiting apparatus combines restriction orifice and priming valve and is installed in the fuel tank on the aircraft.Can be in order to reach another designing requirement of aircraft pressure filling systematic design discipline: " the full oil time of the full machine of pressure filling is no more than 17min " needs carry out the pressure filling ground experiment before the aircraft delivery user.If respectively organize the requirement that the fuel tank refueling time can't satisfy design regulation in the process of the test, the simplest method is exactly the current limliting parameter of carrying out restriction orifice, as the adjustment to the current limiting plate bore size.If the bore size of adjustment restriction orifice must be pulled down it and process or change, must drain the interior fuel oil of fuel tank but will dismantle the restriction orifice and the priming valve that combine, cause unnecessary man power and material's waste.
Summary of the invention
For overcoming the problem that prior art exists, the purpose of this utility model is to provide a kind of fuel tanker current-limiting apparatus of conveniently replaced restriction orifice.
The fuel tanker current-limiting apparatus comprises fuel tank, filling conduit and priming valve, particularly is provided with independently flow restriction on filling conduit, and this flow restriction is made up of the current limiting plate that is fixed on the flange.
Advantage of the present utility model is restriction orifice and priming valve are separated design and installation, welding flange is connected with priming valve with restriction orifice respectively on the oil-piping layout adding, be convenient to when actual filling test, carry out the bore size adjustment and the restriction orifice maintenance of restriction orifice, prevent that restriction orifice from adorning wrongly in installation process, safeguard and need not to pull down restriction orifice during troubleshooting just to check whether install correctly.
In force, be the convenient current limliting parameter of judging restriction orifice, increase the sign of current limliting parameter in the restriction orifice side.
Below in conjunction with the embodiment accompanying drawing the utility model is described in further detail.
Description of drawings
Fig. 1 is a filling conduit current-limiting apparatus arrangement plan
Fig. 2 (1) is the signal of restriction orifice Facad structure
Fig. 2 (2) is the signal of restriction orifice construction profile
The signal of Fig. 3 flow restriction section
Number description: 1. fuel tank; 2. priming valve; 3. restriction orifice; 4. check valve; 5. bore size identifies; 6. dash number identifies; 7. add oil-piping layout; 8. flange; 9. seal ring; 10. attaching parts.
The specific embodiment
Referring to accompanying drawing, the application's fuel tanker current-limiting apparatus comprises fuel tank 1, filling conduit 7 and priming valve 2, particularly is provided with independently restriction orifice 3 on the oil-piping layout 7 adding.Restriction orifice 3 is tightly connected by seal ring 9 by bolt connection piece 10 and the flange 8 that adds oil-piping layout.In the pressure filling pipeline, fuel oil is flowed through earlier after restriction orifice 3 current limlitings through adding oil-piping layout 7, enters by priming valve 2 and check valve 4 and respectively organizes fuel tank 1.Independent installation restriction orifice 3 is convenient to carry out the bore size adjustment and restriction orifice 3 maintenances of restriction orifice 3 when actual filling test.Be the convenient current limliting parameter of judging restriction orifice 3, increase bore size sign 5 and dash number sign 6 in restriction orifice 3 sides.
Claims (2)
1. the fuel tanker current-limiting apparatus comprises fuel tank, filling conduit and priming valve, it is characterized in that also being provided with on filling conduit independently flow restriction, and this flow restriction is made up of the fixing current limiting plate of flange.
2. fuel tank current-limiting apparatus as claimed in claim 1 is characterized in that the side subscript of described current limiting plate is marked with the current limliting parameter of current limiting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202704329U CN201545192U (en) | 2009-11-23 | 2009-11-23 | Airplane oil tank flow restricting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202704329U CN201545192U (en) | 2009-11-23 | 2009-11-23 | Airplane oil tank flow restricting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201545192U true CN201545192U (en) | 2010-08-11 |
Family
ID=42600357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202704329U Expired - Fee Related CN201545192U (en) | 2009-11-23 | 2009-11-23 | Airplane oil tank flow restricting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201545192U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109607678A (en) * | 2019-01-14 | 2019-04-12 | 西安交通大学 | A kind of hole packing free ratio, the adjustable venturi orifice plate cavitation apparatus of aperture thickness |
| CN113700958A (en) * | 2021-09-08 | 2021-11-26 | 中国航空工业集团公司西安飞机设计研究所 | Flange plate device with detachable flow limiting hole |
-
2009
- 2009-11-23 CN CN2009202704329U patent/CN201545192U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109607678A (en) * | 2019-01-14 | 2019-04-12 | 西安交通大学 | A kind of hole packing free ratio, the adjustable venturi orifice plate cavitation apparatus of aperture thickness |
| CN113700958A (en) * | 2021-09-08 | 2021-11-26 | 中国航空工业集团公司西安飞机设计研究所 | Flange plate device with detachable flow limiting hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20181123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |