CN104482280A - Draining method for airtight cabin of aircraft - Google Patents
Draining method for airtight cabin of aircraft Download PDFInfo
- Publication number
- CN104482280A CN104482280A CN201410649418.5A CN201410649418A CN104482280A CN 104482280 A CN104482280 A CN 104482280A CN 201410649418 A CN201410649418 A CN 201410649418A CN 104482280 A CN104482280 A CN 104482280A
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- Prior art keywords
- aircraft
- cylindrical shell
- valve body
- cylinder
- piston body
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Toys (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention provides a draining method for an airtight cabin of an aircraft. The method is characterized in that a draining valve is arranged on a bottom body of the airtight cabin of the aircraft; the lower end of a valve body is inwards contracted to form a stepped barrel; draining holes which communicate with an outlet in the lower end of the stepped barrel are formed in the wall of the stepped barrel; a piston body is embedded into the valve body through a spring; the valve body is fixed on an aircraft body structure through a plurality of supporting feet, wherein the plurality of supporting feet are fixed on the outer wall of an acting barrel body in the middle part of the valve body and obliquely downwards distributed; the outlet of the stepped barrel at the lower end of the valve body communicates with the outside through a round hole in the aircraft body.
Description
Technical field
The present invention relates to the field of structural design technology of aircraft, particularly the draining of aircraft, specifically a kind of de-water of aircraft air tight cabin.
Background technique
Airframe provides enough usage spaces to operating personnel, passenger or goods, aircraft is when routine use, because fuselage interior has installed a lot of equipment, these equipment operationally can produce heat, will produce condensed water and accumulate in interior of aircraft when aircraft internal-external temperature difference reaches certain value in interior of aircraft; On the other hand, because fuselage seal approach is bad, some movable part, such as, the place such as vent window, lid Sealing is aging, will ooze as entered in the cabin of aircraft when running into rainy from these position rains.These ponding accumulated in aircraft cabin must have measure to ensure to discharge out of my cabin, therefore just must consider drainage problem when airframe designs.
Draining in prior art in airframe air tight cabin is the water by accumulating in fuselage air tight cabin inside, by the long purlin breach of bulkhead and long purlin vertical edge made
hole, is drained to underbelly lowest part, and on the covering of underbelly lowest part, varying number diameter processed is
water-leaking hole ponding is discharged, to be generally that requirement ensures airtight for airframe, and these water-leaking holes are while draining, also easily cause fuselage air tight cabin to leak gas, thus cause the pressure release of fuselage main cabin to cause danger.
Therefore design a kind of water discharging valve of aircraft air tight cabin, when fuselage air tight cabin is in atmospheric pressure state, by this device, the ponding in fuselage is discharged; When air tight cabin is in pressurized state, this device closes the tightness ensureing fuselage air tight cabin automatically, thus reach by fuselage ponding discharge aircraft exterior just seem very necessary.
Summary of the invention
In order to overcome the problem that the fuselage that exists in prior art easily leaks gas when draining, the present invention proposes a kind of de-water of airframe.
A kind of de-water of aircraft air tight cabin, it is characterized in that, the bottom body of aircraft air tight cabin is provided with a water discharging valve, the upper end of this valve body is a start cylindrical shell, step cylinder is shortened in the lower end of body, the barrel of step cylinder is provided with weep hole, this weep hole and step cylinder lower end outlet, a piston body is had to be embedded in the start cylindrical shell of body upper end by spring, the upper end of this piston body is mated with the inwall of the start cylindrical shell of body, the lower end of piston body is mated with the step cylindrical shell of body lower end, start cylinder inboard wall is embedded with the spacing back-up ring of piston body, another have a longitudinal vent to be communicated with in start cylindrical shell with outer bottom step cylinder on step barrel, valve body is fixed on the housing construction of aircraft by the multiple legs dispersed obliquely be fixed in the middle part of valve body on start cylinder body outer wall, the outlet of valve body lower end step cylinder is in communication with the outside by the circular hole on body.
Aircraft is when atmospheric pressure state, and piston body rises under the action of the spring, and the ponding of underbelly flow into the lower end outlet of valve body lower end step cylinder from weep hole, the hole on covering and reinforcer flows to external fuselage.When aircraft air tight cabin is in pressurized state, piston body is under the influence of air pressure along the inwall slide downward of pressurized strut, spring outside piston body is compressed, air between piston body and start cylindrical shell discharges external fuselage by vent, weep hole on step barrel blocks, to ensure the tightness of aircraft air tight cabin by piston body lower end.
The present invention has the following advantages:
1) structure is simple, intuitively, fast, timely the ponding of fuselage interior can be discharged to external fuselage.
2) while solving fuselage ponding problem, ensure that the tightness of aircraft.
Below in conjunction with embodiment's accompanying drawing, this application is described in further detail:
Accompanying drawing explanation
Fig. 1 is water discharging valve structural representation under normal pressure
Fig. 2 is water discharging valve structural representation under pressurized condition
Fig. 3 is valve body structural representation
Fig. 4 is the water discharging valve assembling signal of airframe
Number description: 1 bundle line, 2 infantees, 3 back-up rings, 4 piston bodies, 5 springs, 6 start cylindrical shells, 7 legs, 8 bodies, 9 vents, 10 outlets, 11 step cylinders, 12 body 13 weep holes
Embodiment
See accompanying drawing, the present embodiment is a kind of water discharging valve of aircraft air tight cabin, the upper end of valve body 12 is start cylindrical shells 6, step cylinder 11 is shortened in the lower end of body 12, the barrel of step cylinder 11 is provided with weep hole 10, this weep hole 10 exports 15 with step cylinder 11 lower end and is communicated with, a piston body 4 is had to be embedded in the start cylindrical shell 6 of body 12 upper end by spring 5, the upper end of this piston body 4 is mated with the inwall of the start cylindrical shell 6 of body, the lower end of piston body 4 is shunk and is mated with the step cylindrical shell 11 of the lower end of body, separately on step barrel wall, a longitudinal vent 9 is had to be communicated with in start cylindrical shell 6 with step cylinder 11 outer bottom.
In order to alleviate aircraft weight as much as possible, there is lightening hole the upper end of piston body 4, and top and start cylindrical shell 6 inwall of piston body 4 are slidably matched, and bottom and step cylinder 11 inwall of piston body 4 are slidably matched, and spring 5 is arranged on the outer round surface of piston body 4.In order to the motion of limited piston body 4 is formed, start cylindrical shell 6 inwall of body upper end is embedded with the spacing back-up ring 2 of piston body.The upper-end surface of body 12 is coated with infantees 1, is wrapped, enter pressurized strut for the protection of foreign matter with bundle line 2.
For the ease of installing, middle part start cylindrical shell 6 outer wall of body 12 is fixed with multiple leg 7 dispersed obliquely.
Pressurized strut 6 adopts the method for welding to be connected with leg 7, and leg 7 and airframe 8 are bolted, and body is shaped with circular hole, and the bottom outlet 10 of body lower part step cylinder is communicated with outside atmosphere by the circular hole on body.
Aircraft is when atmospheric pressure state, and piston body 4 rises under the effect of spring 3, and the ponding of underbelly flow into the lower end outlet 10 of valve body lower end step cylinder 11 from weep hole 13, the circular hole on fuselage discharges engine body exterior.When aircraft air tight cabin is in pressurized state, piston body 4 is under the influence of air pressure along the inwall slide downward of start cylindrical shell 6, spring 3 outside piston body 4 is compressed, air between piston body 4 and start cylindrical shell 6 discharges external fuselage by vent 9, weep hole 9 on step barrel blocks by piston body 4 lower end, to ensure the tightness of aircraft air tight cabin.
Claims (1)
1. the de-water of an aircraft air tight cabin, it is characterized in that, the bottom body of aircraft air tight cabin is provided with a water discharging valve, the upper end of this valve body is a start cylindrical shell, step cylinder is shortened in the lower end of body, the barrel of step cylinder is provided with weep hole, this weep hole and step cylinder lower end outlet, a piston body is had to be embedded in the start cylindrical shell of body upper end by spring, the upper end of this piston body is mated with the inwall of the start cylindrical shell of body, the lower end of piston body is mated with the step cylindrical shell of body lower end, start cylinder inboard wall is embedded with the spacing back-up ring of piston body, another have a longitudinal vent to be communicated with in start cylindrical shell with outer bottom step cylinder on step barrel, valve body is fixed on the housing construction of aircraft by the multiple legs dispersed obliquely be fixed in the middle part of valve body on start cylinder body outer wall, the outlet of valve body lower end step cylinder is in communication with the outside by the circular hole on body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410649418.5A CN104482280B (en) | 2014-11-14 | 2014-11-14 | A kind of water discharge method of aircraft air-tight cabin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410649418.5A CN104482280B (en) | 2014-11-14 | 2014-11-14 | A kind of water discharge method of aircraft air-tight cabin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104482280A true CN104482280A (en) | 2015-04-01 |
| CN104482280B CN104482280B (en) | 2016-09-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410649418.5A Active CN104482280B (en) | 2014-11-14 | 2014-11-14 | A kind of water discharge method of aircraft air-tight cabin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104482280B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780278A (en) * | 2017-11-13 | 2019-05-21 | 新乡航空工业(集团)有限公司 | Safety valve and the Pneumatic braking system for using the safety valve |
| CN110844042A (en) * | 2019-10-11 | 2020-02-28 | 中国直升机设计研究所 | Flap integrating ventilation and drainage functions |
| CN112413138A (en) * | 2020-11-17 | 2021-02-26 | 中航通飞华南飞机工业有限公司 | Water-tight liquid discharge valve for seaplane |
| CN113339519A (en) * | 2020-03-02 | 2021-09-03 | 中航西飞民用飞机有限责任公司 | Airplane water-proof and drainage device and method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3128757B1 (en) * | 2021-10-29 | 2024-02-02 | Airbus Operations Sas | Aircraft drainage valve, tool for checking the proper functioning of said drainage valve and method for checking the operation of said drainage valve using said control tool |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2555300Y (en) * | 2002-08-09 | 2003-06-11 | 开平骑士洁具电器有限公司 | Dewatering appts. |
| CN2702081Y (en) * | 2004-06-23 | 2005-05-25 | 张土墙 | Automatic drainage valve of air compressor |
| TW200613643A (en) * | 2004-10-28 | 2006-05-01 | Tu-Qiang Zhang | Automatic drainage valve structure of air compressor and automatic draining method |
| CN2872010Y (en) * | 2006-03-03 | 2007-02-21 | 新疆水利水电科学研究院 | Reverse drainage check valve for seepage-proof channel |
| EP2541023A2 (en) * | 2011-06-28 | 2013-01-02 | Goodrich Pump & Engine Control Systems, Inc. | Ecology valve for draining a manifold of a gas turbine engine, fuel system and method for draining fuel |
| CN203322420U (en) * | 2013-05-30 | 2013-12-04 | 干平 | Automatic draining valve |
| CN203889051U (en) * | 2014-05-08 | 2014-10-22 | 中航飞机股份有限公司西安飞机分公司 | Drainage structure of airplane cabin door |
-
2014
- 2014-11-14 CN CN201410649418.5A patent/CN104482280B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2555300Y (en) * | 2002-08-09 | 2003-06-11 | 开平骑士洁具电器有限公司 | Dewatering appts. |
| CN2702081Y (en) * | 2004-06-23 | 2005-05-25 | 张土墙 | Automatic drainage valve of air compressor |
| TW200613643A (en) * | 2004-10-28 | 2006-05-01 | Tu-Qiang Zhang | Automatic drainage valve structure of air compressor and automatic draining method |
| CN2872010Y (en) * | 2006-03-03 | 2007-02-21 | 新疆水利水电科学研究院 | Reverse drainage check valve for seepage-proof channel |
| EP2541023A2 (en) * | 2011-06-28 | 2013-01-02 | Goodrich Pump & Engine Control Systems, Inc. | Ecology valve for draining a manifold of a gas turbine engine, fuel system and method for draining fuel |
| CN203322420U (en) * | 2013-05-30 | 2013-12-04 | 干平 | Automatic draining valve |
| CN203889051U (en) * | 2014-05-08 | 2014-10-22 | 中航飞机股份有限公司西安飞机分公司 | Drainage structure of airplane cabin door |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780278A (en) * | 2017-11-13 | 2019-05-21 | 新乡航空工业(集团)有限公司 | Safety valve and the Pneumatic braking system for using the safety valve |
| CN110844042A (en) * | 2019-10-11 | 2020-02-28 | 中国直升机设计研究所 | Flap integrating ventilation and drainage functions |
| CN113339519A (en) * | 2020-03-02 | 2021-09-03 | 中航西飞民用飞机有限责任公司 | Airplane water-proof and drainage device and method |
| CN113339519B (en) * | 2020-03-02 | 2023-03-14 | 中航西飞民用飞机有限责任公司 | Water-proof and drainage device and method for airplane |
| CN112413138A (en) * | 2020-11-17 | 2021-02-26 | 中航通飞华南飞机工业有限公司 | Water-tight liquid discharge valve for seaplane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104482280B (en) | 2016-09-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 710089 in Shaanxi province Xi'an city Yanliang District West Avenue Patentee after: AVIC Xi'an Aircraft Industry Group Co.,Ltd. Address before: 1 No. 710089 Shaanxi province Xi'an city Yanliang District West Avenue Patentee before: AVIC AIRCRAFT Corp. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210611 Address after: 1 No. 710089 Shaanxi province Xi'an city Yanliang District West Avenue Patentee after: AVIC AIRCRAFT Corp. Address before: 1 No. 710089 Shaanxi province Xi'an city Yanliang District West Avenue Patentee before: XI'AN AIRCRAFT BRANCH OF XI'AN AIRCRAFT INTERNATIONAL Corp. |