CN105973692A - Universal interface device in fairing pressure test and application method thereof - Google Patents

Universal interface device in fairing pressure test and application method thereof Download PDF

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Publication number
CN105973692A
CN105973692A CN201510492891.1A CN201510492891A CN105973692A CN 105973692 A CN105973692 A CN 105973692A CN 201510492891 A CN201510492891 A CN 201510492891A CN 105973692 A CN105973692 A CN 105973692A
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China
Prior art keywords
ozzle
lead
sealing flange
wire
evacuation
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CN201510492891.1A
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CN105973692B (en
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王伟
尹晓峰
胡由宏
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China Academy of Launch Vehicle Technology CALT
Beijing Institute of Structure and Environment Engineering
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China Academy of Launch Vehicle Technology CALT
Beijing Institute of Structure and Environment Engineering
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Abstract

The invention discloses a universal interface device in a fairing pressure test. The universal interface device comprises a main steel plate, an O-shaped sealing ring, a pressurizing tube nozzle, a pressure-sensing tube nozzle, a stand-by pipe nozzle, a vacuum-pumping tube nozzle, a temperature test lead wire sealing flange, and a strain test lead wire sealing flange. The universal interface device is characterized in that the positive surface of the main steel plate is connected with the pressurizing tube nozzle, the pressure-sensing tube nozzle, the stand-by pipe nozzle, the temperature test lead wire sealing flange, and the strain test lead wire sealing flange; the vacuum-pumping nozzle employs a tee part, a flange at one end is connected with the temperature test lead wire sealing flange, an intermediate end is a vacuum-pumping interface; and a sealing groove is designed on a reverse surface of the main steel plate for putting the O-shaped sealing ring. The universal interface device integrating pressurizing and vacuum-pumping, the quantity of the sealing base plates is reduced by 50%, and the installation workload is reduced by 50%.

Description

General-purpose interface device in the test of a kind of dome pressure and using method thereof
Technical field
The invention belongs to aircraft protrusion dome pressure test field, be specifically related to general in a kind of dome pressure test filling Pressure and evacuation interface arrangement.
Background technology
Active service rocket exterior design has numerous protrusion trousers.Protrusion dome pressure is tested, and i.e. carries out trousers inside Pressurising and evacuation, to reach pressure condition.This type of test usual way be, for each protrusion trousers outside Shape feature, designs seal base.Seal base should realize the sealing of seam;There is pressurising or evacuation interface;Have whole Stream cover internal measurement line pin interfaces, and realize sealing.The mode of pressurising or evacuation interface, pin interfaces employing welding is solid It is scheduled on seal base.Additionally, seal base is main frock, it must have enough intensity and steel plate, and it designs and adds Work is relatively costly.
It practice, pressurising interface and evacuation interface differ, if it is considered that pressurising and the demand of two operating modes of evacuation, often One class trousers test at least needs to process two pieces of seal bases.One block welding pressurising interface is tested for pressurising, another block welding Evacuation interface is tested for evacuation, and every piece of base plate is required to pin interfaces device.
Nowadays, rocket protrusion trousers is of a great variety, different.Such as, the test of certain model rocket protrusion trousers is produced Product can include any more that more than ten plant.This requires design, processes numerous seal base frocks.Each seal base is required to take into account and fills Pressure or the function such as evacuation interface, the lead-in wire sealing of internal measurement line.This makes seal base structural redundancy, large number of, its Design, processing and use cost increase severely, and cause the wasting of resources to a certain extent, reduce labor efficiency.
Therefore, a kind of pressurising, evacuation and measurement interface function taken into account is designed in the general-purpose interface device of one, it is possible to avoid Repeat to process seal base, eliminate pressurising, evacuation and the measurement interface and structure being required to arrange on all seal bases, Make frock modularity, simplification.Meanwhile, multiple seal bases can share a general module, and this will improve frock undoubtedly Service efficiency, it is to avoid the wasting of resources, improve work efficiency.
Summary of the invention
The present invention devises a kind of pressurising, evacuation and measurement interface of being provided simultaneously with in the general-purpose interface device of one, and retouches in detail State the using method of general-purpose interface device.
Pressurising, evacuation, pressure measurement and test lead interface are peeled off from seal base, and concentrated on one small-sized, On general device, the two employing sealed interface general, simple docks.Thus make the simple in construction of seal base Change so that the function modoularizations such as pressurising, evacuation, pressure measurement and test lead.Simultaneously as this fexible unit collection pressurising and taking out Vacuum interface, thus makes the quantity of seal base reduce 50% so that installation workload reduces by 50%.
General-purpose interface device in the test of a kind of dome pressure, including main body steel plate, O RunddichtringO, pressurising ozzle, pressure measurement Ozzle, standby ozzle, evacuation ozzle, temperature test lead-in wire sealing flange, strain testing lead-in wire sealing flange, main body steel plate Front is connected to pressurising ozzle, pressure measurement ozzle, standby ozzle, temperature test lead-in wire sealing flange and strain testing lead-in wire respectively Sealing flange;Evacuation ozzle uses three-way piece, the flange of one end to be connected with temperature test lead-in wire sealing flange, and intermediate ends is for taking out Vacuum interface, the flange of the other end is connected with lead-in wire sealing flange;Main body steel plate reverse side is designed with seal groove, is used for placing O RunddichtringO.
Further, pressurising ozzle uses bulb to seal, and is used for docking pressurising pipeline.
Further, pressure measurement ozzle uses bulb to seal, and is used for docking pressure measurement pipeline.
Further, standby ozzle uses bulb to seal, for standby.
Further, main body steel plate width 115mm, long 345mm, thickness 8mm, sealing groove width 5mm of main body steel plate reverse side, deeply 2.5mm;Evacuation interface internal diameter is 29mm, and external diameter is 35mm;Temperature test lead-in wire sealing flange and strain testing lead-in wire are close Envelope flange seal base plate internal diameter is 30mm.
Further, this general-purpose interface device using method is as follows:
A. using trip bolt that interface arrangement main body steel plate is connected fastening with seal base, the joint face of main body steel plate reverse side uses O RunddichtringO seals;
B. testpieces is placed near seal base, goes between the temperature test lead-in wire of testpieces inner chamber, strain testing respectively from temperature The interstitial hole of degree test lead sealing flange and strain testing lead-in wire sealing flange passes;
C. using trip bolt that with the another side of seal base, testpieces is connected fastening, joint face takes silica gel sealing;
D. pressure measurement ozzle is docked with pressure tester, standby ozzle is blocked;
E. the strain testing lead-in wire that will pass from strain testing lead-in wire sealing flange (9) interstitial hole and the test in lead-in wire sealing flange Lead-in wire is connected, and the sealing flange (9) that gone between by strain testing uses 4 M8 bolts to be connected with lead-in wire sealing flange, joint face pad Pair rubber sealing gasket;
F., during evacuation operating mode, pressurising ozzle (4) is blocked;Evacuation ozzle (7) is shifted near temperature test lead-in wire Sealing Method Blue (8), the temperature test lead-in wire that will pass from temperature test lead-in wire sealing flange (8) is from another of evacuation ozzle (7) The flange of end passes, and with temperature test lead-in wire sealing flange (8), the flange of evacuation ozzle (7) one end is used 4 M8's Bolt is fastenedly connected, and joint face uses rubber gasket to seal;The temperature that flange from evacuation ozzle (7) other end is passed Test lead is connected with the test lead in lead-in wire sealing flange, is sealed with lead-in wire by the flange of upper for evacuation ozzle (7) other end Flange is connected with 4 M8 bolt fastenings;Joint face pays for rubber gasket first;By the evacuation interface (11) of evacuation ozzle (7) Outside vaccum-pumping equipment docking;
G., during pressurising operating mode, open the pressurising ozzle of closure and connect the pressurising equipment of outside, evacuation ozzle is unloaded, will be from temperature The temperature test lead-in wire passed in degree test lead sealing flange (8) is connected, by temperature with the test lead in lead-in wire sealing flange Test lead sealing flange is connected with 4 M8 bolt fastenings with lead-in wire sealing flange;Joint face pays for rubber gasket first.
Further, pressurising ozzle, pressure measurement ozzle, standby ozzle all uses the general ozzle of 6YC122-89.
Further, the trip bolt of this general-purpose interface device is 16-M6 screw.
Further, lead-in wire sealing flange is connected with the flange of the evacuation ozzle other end, and lead-in wire sealing flange main body is one Flange disk device, ring flange is joined and beats installing hole, and ring flange is middle is intensive honeycomb hole, and honeycomb hole is fairlead;For not With test parameter, such as temperature, strain etc., cut that to be about the test lead of 1m some, by test lead in honeycomb hole Pass, then use sealing silica gel that honeycomb hole is sealed, and solidify.So, just achieve at honeycomb hole sealing, Lead-in wire function.During test, the test lead one end on lead-in wire sealing flange is connected with the test lead within testpieces, another Hold and be connected with test equipment.Flange face uses 4-M8 bolt to dock use with the port on test tool, and interface pays for rubber first Sealing gasket seals.The present invention uses lead-in wire sealing flange to achieve lead-in wire and sealing function.
The present invention by the functions such as pressurising, evacuation, pressure measurement, test lead sealing in one.Compact conformation, light.Can expire Foot the highest pressurising 10MPa, the experimental condition demand of evacuation 0.1MPa.Possess the temperature of 80 passages, strain testing ability, And realize sealing.
The present invention possesses high versatility, it is possible to carries out perfect docking with existing pressurising, evacuation and test equipment, is suitable for All operating modes in all trousers autoclave tests.There is between this interface arrangement and seal base unified interface and sealing side Case.
Occupation mode of the present invention is flexible, pressurising and evacuation operating mode easy switching.When pressurising operating mode, evacuation etc. does not temporarily make Interface can realize seal, vice versa.
The present invention has good universality to the autoclave test of trousers class.Can well apply at other similar structures parts, In the middle of the autoclave test of pressure lid etc., and obtain good economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is the Facad structure figure of general-purpose interface device in a kind of trousers autoclave test;
As it is shown in figure 1, wherein 1-main body steel plate, 2-trip bolt, 4-pressurising ozzle, 5-pressure measurement ozzle, the standby ozzle of 6-, 7-evacuation ozzle, 8-temperature test lead-in wire sealing flange, 9-strain testing lead-in wire sealing flange, 11-evacuation interface;
Fig. 2 is the inverse layer structure figure of general-purpose interface device in a kind of trousers autoclave test;
As in figure 2 it is shown, wherein 3-O RunddichtringO;
Fig. 3 is that in a kind of trousers autoclave test, general-purpose interface device uses schematic diagram;
As it is shown on figure 3, wherein 10-seal base.
Detailed description of the invention
With detailed description of the invention, technical scheme is described in further details below in conjunction with the accompanying drawings.Obviously, described Embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on embodiments of the invention, this area The every other embodiment that technical staff is obtained under not making creative work premise, broadly falls into claimed Scope.
As shown in Figure 1, 2, it is first according to concrete size and requirement machines this interface arrangement.Then by this module and the sealing end Plate with the use of, the two use 16-M6 screw connect fastening.The screwed hole of 16-M6 is beaten on seal base.
As a example by Fig. 1, Fig. 2, Fig. 3, embodiment 1:
General-purpose interface device in the test of a kind of dome pressure, including main body steel plate, O RunddichtringO, pressurising ozzle, pressure measurement Ozzle, standby ozzle, evacuation ozzle, temperature test lead-in wire sealing flange, strain testing lead-in wire sealing flange, its feature exists Be connected to pressurising ozzle respectively in, main body steel plate front, pressure measurement ozzle, standby ozzle, temperature test lead-in wire sealing flange and Strain testing lead-in wire sealing flange seals;Evacuation ozzle uses three-way piece, the flange of one end and temperature test lead-in wire sealing flange Being connected, the flange of the other end is connected with lead-in wire sealing flange, and intermediate ends is evacuation interface;Main body steel plate reverse side is designed with sealing Groove, is used for placing O RunddichtringO.
This general-purpose interface device using method is as follows:
A. using trip bolt that interface arrangement main body steel plate is connected fastening with seal base, the joint face of main body steel plate reverse side uses O RunddichtringO seals;
B. testpieces is placed near seal base, goes between the temperature test lead-in wire of testpieces inner chamber, strain testing respectively from temperature The interstitial hole of degree test lead sealing flange and strain testing lead-in wire sealing flange passes;
C. using trip bolt that with the another side of seal base, testpieces is connected fastening, joint face takes silica gel sealing;
D. pressure measurement ozzle is docked with pressure tester, standby ozzle is blocked;
E. by the strain testing lead-in wire passed from strain testing lead-in wire sealing flange interstitial hole and the test lead in lead-in wire sealing flange Being connected, the sealing flange that gone between by strain testing uses 4 M8 bolts to be connected with lead-in wire sealing flange, and joint face pays for rubber seal first Pad;
F., during evacuation operating mode, pressurising ozzle is blocked;Evacuation ozzle is shifted near temperature test lead-in wire sealing flange, will be from temperature The temperature test lead-in wire passed in degree test lead sealing flange passes, by vacuum-pumping tube from the flange of the other end of evacuation ozzle The flange of mouth one end uses the bolt of 4 M8 to be fastenedly connected with temperature test lead-in wire sealing flange, and joint face uses rubber gasket Seal;The temperature test passed from the flange of evacuation ozzle other end lead-in wire is connected with the test lead in lead-in wire sealing flange, The flange of the other end on evacuation ozzle is connected with 4 M8 bolt fastenings with lead-in wire sealing flange;Joint face pays for rubber seal first Pad;By outside for the evacuation interface of evacuation ozzle vaccum-pumping equipment docking;So far, test specimen, seal base, this device three Between just define one seal cavity;This cavity and outside vaccum-pumping equipment, pressure instrumentataion, temperature-testing device, strain Test equipment is connected, and has just possessed evacuation, power of test.
As a example by Fig. 1, Fig. 2, Fig. 3, embodiment 2:
General-purpose interface device in the test of a kind of dome pressure, including main body steel plate, O RunddichtringO, pressurising ozzle, pressure measurement Ozzle, standby ozzle, evacuation ozzle, temperature test lead-in wire sealing flange, strain testing lead-in wire sealing flange, its feature exists Be connected to pressurising ozzle respectively in, main body steel plate front, pressure measurement ozzle, standby ozzle, temperature test lead-in wire sealing flange and Strain testing lead-in wire sealing flange seals;Evacuation ozzle uses three-way piece, the flange of one end and temperature test lead-in wire sealing flange Being connected, the flange of the other end is connected with lead-in wire sealing flange, and intermediate ends is evacuation interface;Main body steel plate reverse side is designed with sealing Groove, is used for placing O RunddichtringO.
This general-purpose interface device using method is as follows:
A. using trip bolt that interface arrangement main body steel plate is connected fastening with seal base, the joint face of main body steel plate reverse side uses O RunddichtringO seals;
B. testpieces is placed near seal base, goes between the temperature test lead-in wire of testpieces inner chamber, strain testing respectively from temperature The interstitial hole of degree test lead sealing flange and strain testing lead-in wire sealing flange passes;
C. using trip bolt that with the another side of seal base, testpieces is connected fastening, joint face takes silica gel sealing;
D. pressure measurement ozzle is docked with pressure tester, standby ozzle is blocked;
E. by the strain testing lead-in wire passed from strain testing lead-in wire sealing flange interstitial hole and the test lead in lead-in wire sealing flange Being connected, the sealing flange that gone between by strain testing uses 4 M8 bolts to be connected with lead-in wire sealing flange, and joint face pays for rubber seal first Pad;
F., during pressurising operating mode, open the pressurising ozzle of closure and connect the pressurising equipment of outside, evacuation ozzle is unloaded, will be from The temperature test lead-in wire passed in temperature test lead-in wire sealing flange is connected with the test lead in lead-in wire sealing flange, temperature is surveyed Examination lead-in wire sealing flange is connected with 4 M8 bolt fastenings with lead-in wire sealing flange;Joint face pays for rubber gasket first.
By using this general-purpose interface, each trousers has only to design and processes base plate sealing together.By main body steel plate with close Back cover plate is connected, and is just applicable to pressurising, the test of two kinds of operating modes of evacuation.The use of this general module, it is to avoid repeat to add Work seal base, eliminates the repetition interface on seal base and structure so that frock modularity, simplification.Meanwhile, multiple Seal base can share a general module, and this improves the service efficiency of frock, it is to avoid the wasting of resources, improves work efficiency, Reduce research and production cost.
Described above to the disclosed embodiments, makes those skilled in the art be capable of or uses the present invention.These are implemented The multiple amendment of example is apparent from for the patented technology personnel of this area, and generic principles defined herein can be Without departing from the present invention, realize in other embodiments.Therefore, the present invention is not intended to be limited to illustrated herein These embodiments, and be to fit to the widest range consistent with principles disclosed herein and features of novelty.

Claims (6)

1. the general-purpose interface device in dome pressure test, including main body steel plate (1), O RunddichtringO (3), pressurising Ozzle (4), pressure measurement ozzle (5), standby ozzle (6), evacuation ozzle (7), temperature test lead-in wire sealing flange (8), Strain testing lead-in wire sealing flange (9), it is characterised in that main body steel plate (1) front is connected to pressurising ozzle (4) respectively, surveys Pressure pipe mouth (5), standby ozzle (6), temperature test lead-in wire sealing flange (8) and strain testing lead-in wire sealing flange seal (9); Evacuation ozzle (7) uses three-way piece, the flange of one end to be connected with temperature test lead-in wire sealing flange (8), and intermediate ends is for taking out Vacuum interface (11);Main body steel plate (1) reverse side is designed with seal groove, is used for placing O RunddichtringO (3).
General-purpose interface device the most according to claim 1, it is characterised in that pressurising ozzle (4), pressure measurement ozzle (5) And standby ozzle (6) all uses bulb to seal.
General-purpose interface device the most according to claim 1, it is characterised in that main body steel plate (1) wide 115mm, long 345mm, Thickness 8mm, sealing groove width 5mm of main body steel plate (1) reverse side, deep 2.5mm;Evacuation interface (11) internal diameter is 29mm, External diameter is 35mm;Temperature test lead-in wire sealing flange (8) and strain testing lead-in wire sealing flange (9) internal diameter are 30mm.
General-purpose interface device the most according to claim 3, it is characterised in that the using method of this device is as follows:
A. use trip bolt (2) that with seal base (10), interface arrangement main body steel plate (1) is connected fastening, main body steel plate (1) joint face of reverse side uses O RunddichtringO to seal (3);
B. testpieces is placed near seal base (10), by the temperature test lead-in wire of testpieces inner chamber, strain testing lead-in wire point The not interstitial hole from temperature test lead-in wire sealing flange (8) and strain testing lead-in wire sealing flange (9) passes;
C. using trip bolt (2) that the another side of testpieces with seal base (10) is connected fastening, joint face takes silica gel close Envelope;
D. pressure measurement ozzle (5) is docked with pressure tester, standby ozzle (6) is blocked;
E. the strain testing lead-in wire that will pass from strain testing lead-in wire sealing flange (9) interstitial hole and the test in lead-in wire sealing flange Lead-in wire is connected, and the sealing flange (9) that gone between by strain testing uses 4 M8 bolts to be connected with lead-in wire sealing flange, joint face pad Pair rubber sealing gasket;
F., during evacuation operating mode, pressurising ozzle (4) is blocked;Evacuation ozzle (7) is shifted near temperature test lead-in wire Sealing Method Blue (8), the temperature test lead-in wire that will pass from temperature test lead-in wire sealing flange (8) is from another of evacuation ozzle (7) The flange of end passes, and with temperature test lead-in wire sealing flange (8), the flange of evacuation ozzle (7) one end is used 4 M8's Bolt is fastenedly connected, and joint face uses rubber gasket to seal;The temperature that flange from evacuation ozzle (7) other end is passed Test lead is connected with the test lead in lead-in wire sealing flange, is sealed with lead-in wire by the flange of upper for evacuation ozzle (7) other end Flange is connected with 4 M8 bolt fastenings;Joint face pays for rubber gasket first;By the evacuation interface (11) of evacuation ozzle (7) Outside vaccum-pumping equipment docking;
G. pressurising operating mode, opens the pressurising ozzle (4) of closure and connects the pressurising equipment of outside, being unloaded by evacuation ozzle (7) Under, the temperature test lead-in wire that will pass from temperature test lead-in wire sealing flange (8) and the test lead phase in lead-in wire sealing flange Even, the sealing flange (8) that gone between by temperature test is connected with 4 M8 bolt fastenings with lead-in wire sealing flange;Joint face pays for rubber first Glue sealing gasket.
General-purpose interface device the most according to claim 2, it is characterised in that pressurising ozzle (4), pressure measurement ozzle (5), Standby ozzle (6) all uses the general ozzle of 6YC122-89.
6. according to the general-purpose interface device described in any one claim in Claims 1-4, it is characterised in that fastening spiral shell Nail (2) is 16-M6 screw.
CN201510492891.1A 2015-08-13 2015-08-13 General-purpose interface device and its application method in a kind of test of dome pressure Active CN105973692B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110048111A1 (en) * 2009-08-31 2011-03-03 United Technologies Corporation Method of leak testing aerospace components
CN102066951A (en) * 2009-04-21 2011-05-18 印度太空研究组织 System and method for detecting and isolating faults in pressure sensing of flush air data system (FADS)
CN204214612U (en) * 2014-10-16 2015-03-18 广州广船国际股份有限公司 Air tightness detection apparatus
CN204405274U (en) * 2015-01-14 2015-06-17 中国航空工业集团公司沈阳发动机设计研究所 A kind of device suppressing instrument for the connection of multiple spot stagnation pressure tube

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102066951A (en) * 2009-04-21 2011-05-18 印度太空研究组织 System and method for detecting and isolating faults in pressure sensing of flush air data system (FADS)
US20110048111A1 (en) * 2009-08-31 2011-03-03 United Technologies Corporation Method of leak testing aerospace components
CN204214612U (en) * 2014-10-16 2015-03-18 广州广船国际股份有限公司 Air tightness detection apparatus
CN204405274U (en) * 2015-01-14 2015-06-17 中国航空工业集团公司沈阳发动机设计研究所 A kind of device suppressing instrument for the connection of multiple spot stagnation pressure tube

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
黄劲松: "复合材料整流罩结构的稳定性分析", 《华中理工大学学报》 *

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