CN114235590A - Multi-cavity casing pressure test device and method - Google Patents
Multi-cavity casing pressure test device and method Download PDFInfo
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- CN114235590A CN114235590A CN202111538273.8A CN202111538273A CN114235590A CN 114235590 A CN114235590 A CN 114235590A CN 202111538273 A CN202111538273 A CN 202111538273A CN 114235590 A CN114235590 A CN 114235590A
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- 238000012360 testing method Methods 0.000 title claims abstract description 98
- 238000000034 method Methods 0.000 title claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 46
- 238000007789 sealing Methods 0.000 claims description 37
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 abstract description 6
- 238000010998 test method Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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Abstract
The invention discloses a multi-cavity casing pressure test device and a multi-cavity casing pressure test method, which comprise a base, a bottom cavity separating ring, a casing test piece and a cover plate, wherein the casing test piece is a cylindrical thin-wall piece, the upper end surface and the lower end surface of the casing test piece are provided with outer convex table surfaces extending towards the horizontal direction, the outer convex table surface of the lower end surface is provided with a connecting hole, the connecting hole is used for being connected with the base, the base is of a disc structure and is provided with an annular bulge, the upper end surface of the annular bulge of the base is provided with a connecting hole, the base is provided with the bottom cavity separating ring, and the cover plate is arranged above the bottom cavity separating ring. The test device is compact in structure and easy to install and adjust, and pressure load can be accurately applied to each cavity of a test piece through the test device, so that the purposes of checking the structural rigidity and the welding quality stability of the casing test piece in a cavity-by-cavity mode are achieved. The device commonality is strong, can be used for similar aeroengine machine casket class pressure test, and the range of application is wide, has with strong engineering application value.
Description
Technical Field
The invention relates to the technical field of hydraulic strength tests, in particular to a multi-cavity casing pressure test device and method.
Background
The aeroengine casing is an extremely important bearing component of an aeroengine, plays an extremely important role in an aeroengine structure, plays a supporting role, supports the rotation of a rotor component through a bearing arranged on the casing, plays a role in fixing an external pipeline and engine accessories, and plays a role in containing high-speed rotating components such as an internal rotor, blades and the like when the engine runs. Most of the casings are thin-wall part welding structures, and in order to verify the stability of the welding processing technology of casing thin-wall test parts and the reasonability of structural design, hydraulic tests need to be carried out on the casings to verify the strength storage and the welding quality of the parts, so that test bases are provided for state evaluation and reliability evaluation of the parts. However, the structure of the aeroengine case part is mostly a barrel-shaped thin-wall structure and a plurality of cavities are longitudinally distributed. When the engine works, the cavities not only bear the action of air pressure of the inner duct and the outer duct, but also have certain pressure difference between the adjacent cavities due to different compression ratios, and the working boundary conditions of a test piece are simulated during the test, so that great difficulty is brought to the examination test.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a multi-cavity casing pressure test device and a multi-cavity casing pressure test method. The casing cavity is divided into the cavities according to the natural cavity formed in actual work through structural design, and each divided cavity is provided with an independent water inlet and an independent water outlet, so that multiple cavities can be independently and simultaneously filled with water to perform a hydraulic strength test, the pressure load borne by the working state of an engine is simulated, and the purpose of checking the strength of a casing test piece is finally achieved.
The invention is realized by the following technical proposal, a multi-cavity casing pressure test device comprises a base, a bottom cavity separating ring, a casing test piece and a cover plate, the casing test piece is a column-shaped thin-wall piece, the upper end surface and the lower end surface of the casing test piece are provided with convex table surfaces extending towards the horizontal direction, the convex table surfaces on the lower end surface are provided with connecting holes, the connecting hole is used for connecting with a base, the base is of a disc structure, an annular bulge is arranged on the base, the upper end surface of the annular bulge of the base is provided with a connecting hole, the base is provided with a bottom cavity separating ring, the inner side wall of the bottom cavity separating ring is flush with the inner side wall of the annular bulge of the base, the outer side wall of the bottom cavity separating ring is the same as the inner side wall of the casing test piece, and a cover plate is arranged above the bottom cavity separating ring, and the outer side wall of the cover plate is the same as the inner side wall of the case testing piece.
Furthermore, the outer edge of the upper end part of the bottom cavity separating ring is provided with an L-shaped notch, and the outer edge of the cover plate is provided with a sharp angle structure extending downwards.
Furthermore, a separating ring is arranged above the bottom cavity separating ring, and the number of the separating rings is selected according to the actual situation; the diameter of the maximum outer side edge of the separating ring is the same as that of the maximum outer side edge of the bottom cavity separating ring, and an L-shaped notch is formed in the outer edge of the upper end of the separating ring; the outer edge of the separating ring is provided with a sharp-angled structure extending downwards.
Furthermore, a hole is formed between the base and the cover plate.
Furthermore, a sealing ring is arranged in the L-shaped notch.
Furthermore, a water inlet pipe and a water outlet pipe are arranged on the side walls of the bottom cavity separating ring, the separating ring and the base, and water inlets and water outlets of the water inlet pipe and the water outlet pipe are arranged above the cover plate.
Furthermore, two round holes are formed in the cover plate.
Furthermore, a plurality of connecting holes are correspondingly formed in the base and the casing test piece, and the connecting holes are distributed in an annular array.
Furthermore, a sealing gasket is arranged at the joint of the convex table surface arranged at the lower end of the casing test piece and the base, and a rubber sealing gasket is arranged between the bottom cavity separating ring and the base.
The invention also provides a method based on the multi-cavity casing pressure test device, which comprises the steps of installing a casing test piece on a base, sequentially placing a bottom cavity separating ring and a cover plate in the casing test piece, arranging a sealing gasket between the casing test piece and the base, arranging a rubber sealing gasket between the bottom cavity separating ring and the base, arranging a sealing ring between the bottom cavity separating plate and the cover plate, and then installing a compression stud and a nut; sealing is achieved by tightening the nut.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention provides a multi-cavity casing pressure test device, which can realize independent and simultaneous water filling of multiple cavities for hydraulic strength test through simple structural arrangement so as to simulate pressure load borne by an engine in a working state and finally achieve the purpose of checking the strength of a casing test piece.
Further, the effectual leakproofness of having guaranteed the device of the design of L type breach through fixed structure spare and the closed angle structure of downwardly extending, the maximize under the condition that does not increase other spare parts simultaneously increase the sealing performance of device, be the key selection that realizes the device is sealed to the effectual performance that increases the sealing washer, accomplished the effect that simple to use's structural design promoted the device performance.
Furthermore, the arrangement of the separating rings increases the testability of the device, different numbers of separating rings are selected according to different test environments, and meanwhile, the safety of the device can be effectively ensured through the arrangement that the diameter of the maximum outer side edge of each separating ring is the same as that of the maximum outer side edge of the bottom cavity separating ring.
Furthermore, a hole is formed in the middle of the base and used for fixing a compression bolt; the hole in the center of the cover plate is provided with a pressing stud and a nut arranged above the pressing stud, the nut is screwed to drive each separating ring and the cover plate to move downwards along the direction of the side wall of the casing test piece, and the seal ring is extruded by sharp corners of the lower end surfaces of each separating ring and the cover plate in the moving process to deform the seal ring, so that the sealing effect of each cavity is achieved. Finally, a pressure cavity is formed to realize the detection effect, and the step is the key for completing the test.
Furthermore, the seal ring is extruded by the sharp corners and the L-shaped gaps of the lower end surfaces of the separating rings and the cover plate to deform the seal ring, so that the sealing effect of each cavity is achieved. The cavity is divided by adopting the mode of extruding the deformation of the sealing ring, so that the problem that the pressure cannot be independently applied among multiple cavities because no obvious interface exists among the cavities and no obvious end face which can be used for sealing exists among the cavities of the thin-wall cylindrical casing is solved, the application of load can be accurately and accurately realized, and the authenticity and the accuracy of a test result are ensured.
Furthermore, a water supply pipe of the tester is connected with a water inlet of the device, and a water return pipe of the tester is connected with a water outlet of the device. During the test, a water return pipe on the tester is closed, water is injected into the cavity through a water supply pipe to form pressure, and the purpose of checking the strength of the cartridge receiver test piece is achieved. After the test is finished, the water return pipe is opened, the pressure in the cavity is removed, and the device and the test piece are decomposed according to the reverse sequence during installation. Each sub-cavity is provided with an independent water inlet and an independent water outlet, so that the hydraulic strength test of independent and simultaneous water filling of multiple cavities can be realized, the pressure load born by the working state of the engine can be simulated, and the aim of checking the strength of the test piece of the casing can be finally fulfilled.
Furthermore, the water inlet pipe and the water outlet pipe are penetrated through the two round holes, and the experimental result of the device is guaranteed.
Furthermore, through the arrangement of the connecting holes, the device can be provided with different numbers of connecting holes according to different connecting relations and strength requirements, and the stability of the device can be effectively improved through equidistant design.
Furthermore, the safety of the test is greatly improved by arranging the sealing gasket, and the stability of the device is ensured.
The device is connected with a casing hydraulic tester, and the casing cavity is divided into cavities according to a natural cavity formed in actual work through structural design, and each cavity is provided with an independent water inlet and an independent water outlet, so that independent and simultaneous water filling of multiple cavities can be realized to carry out a hydraulic strength test, the pressure load borne by an engine in a working state is simulated, and the purpose of checking the strength of a casing test piece is finally achieved. The test device is compact in structure and easy to install and adjust, and pressure load can be accurately applied to each cavity of a test piece through the test device, so that the purposes of checking the structural rigidity and the welding quality stability of the casing test piece in a cavity-by-cavity mode are achieved. The device commonality is strong, can be used for similar aeroengine machine casket class pressure test, and the range of application is wide, has with strong engineering application value.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments or technical descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a cross-sectional view of a multi-chambered case pressure test apparatus provided in accordance with an embodiment of the present disclosure;
FIG. 2 is an enlarged partial cross-sectional view of a multi-chambered case pressure test apparatus provided in accordance with an embodiment of the present disclosure;
FIG. 3 is a cross-sectional view of a base of a multi-chambered case pressure test apparatus provided in accordance with an embodiment of the present disclosure;
FIG. 4 is a cross-sectional view of a bottom chamber divider ring of a multi-chamber casing pressure test apparatus according to an embodiment of the present disclosure;
FIG. 5 is a cross-sectional view of a split ring of a multi-chamber casing pressure test apparatus provided in accordance with an embodiment of the present disclosure;
FIG. 6 is a cross-sectional view of a cover plate of a multi-chambered case pressure testing apparatus provided by an embodiment of the present disclosure.
The method specifically comprises the following steps: the device comprises a base 1, a bottom cavity separating ring 2, a separating ring 3, a sealing gasket a, a sealing gasket d, a compression stud h, a nut i and a cover plate 6.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In a preferred embodiment of the present invention, the method provides a multichamber casing pressure test apparatus: the device comprises a base 1, a bottom cavity separating ring 2, a separating ring 3, a sealing gasket a, a compression stud h, a nut i, a sealing gasket d and a cover plate 6. The base 1 is of a disc-shaped structure, and a threaded hole is formed in the middle of the base and used for fixing a compression bolt; a circle of annular groove is formed in the disc and is used for being matched with the lower mounting edge of the casing test piece; a circle of raised circular ring is arranged on the disc, 24 threaded holes are arrayed on the upper end surface of the circular ring, two through holes are symmetrically distributed in the radial direction of the circular ring, and the circular ring is used for welding a water inlet pipe and a water outlet pipe respectively; the bottom cavity separating ring 2 is of a circular ring type structure, 24 through holes are uniformly distributed in the circular ring and used for being connected with the base 1, and L-shaped notches are formed in the upper end face of the circumference of the circular ring of the bottom cavity separating ring 2 and used for installing an O-shaped sealing ring. The separating ring 3 is of a circular ring-shaped structure, the radial direction of the ring of the separating ring 3 is an L-shaped notch, the L-shaped notch is used for installing an O-shaped sealing ring, the lower end face of the L-shaped notch is of a sharp-angled structure and used for compressing the O-shaped ring, and two holes are symmetrically distributed in the radial direction of the ring and used for being welded with a water inlet pipeline and a water outlet pipeline. The cover plate 6 is of a disc-shaped structure, two round holes are symmetrically distributed on the cover plate and used for the water inlet pipe and the water outlet pipe to penetrate, the periphery of the cover plate is a circle of circular convex edge, and the lower end face of the convex edge is of a sharp-angled structure and used for compressing the O-shaped sealing ring.
As shown in fig. 1, the partition ring 3 and the bottom cavity partition ring 2, together with the base 1, the casing test piece and the cover plate 6, divide the casing test piece into four independent cavities I, II, III and IV, and the four cavities inject water media into the cavities through the water inlet pipe and the water outlet pipe welded on the partition ring, so that pressure load is applied to each cavity, and the purpose of performing strength check on the casing is achieved.
The invention also provides a method based on the multi-cavity casing pressure test device, which comprises a base 1, a bottom cavity separating ring 2, a separating ring 3, a sealing gasket a, a compression stud h, a nut i, a sealing gasket d and a cover plate 6.
Before testing, the lower mounting edge of the casing testing piece is placed in the annular groove on the base 1, the rubber sealing gasket a is placed between the casing mounting edge b and the groove, and then the lower mounting edge of the casing is fixed with the base 1 through 48 screws. The rubber gasket d and the bottom cavity separating ring 2 are aligned with 24 holes, the casing test piece is placed on the base 1, and the rubber gasket d and the bottom cavity separating ring 2 are fixed on the base 1 through 24 screws. And an O-shaped sealing ring is arranged in a groove at the joint of the inner wall of the casing test piece and the upper end surface of the bottom cavity separating ring 2. And slowly putting the separating ring 3 to the bottom along the inner wall of the casing test piece until the sharp corner of the lower end face of the separating ring 3 contacts the O-shaped sealing ring, and then installing the O-shaped sealing ring in the groove at the joint of the inner wall of the casing test piece and the upper end face of the separating ring 3. And slowly putting the cover plate 6 to the bottom along the inner wall of the casing test piece until the sharp corner of the lower end surface of the cover plate 6 contacts the O-shaped sealing ring g. And a central compression stud h and a nut i are installed, the nut i is screwed to drive the bottom cavity separating ring 2, the separating ring 3 and the cover plate 6 move downwards along the side wall of the casing test piece, and the O-shaped sealing ring is extruded by sharp corners of the lower end surfaces of the separating rings and the cover plate to deform the O-shaped sealing ring in the moving process, so that the sealing effect of each cavity is achieved. Finally, four pressure cavities I, II, III and IV are formed. A water supply pipe of the tester is connected with a water inlet of the device, and a water return pipe of the tester is connected with a water outlet of the device. During the test, a water return pipe on the tester is closed, water is injected into the four cavities through a water supply pipe, and pressure is formed, so that the aim of checking the strength of the cartridge receiver test piece is fulfilled. After the test is finished, the water return pipe is opened, the pressure in the cavity is removed, and the device and the test piece are decomposed according to the reverse sequence during installation.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art. The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (10)
1. A multi-cavity casing pressure test device is characterized by comprising a base (1), a bottom cavity separating ring (2), a casing test piece and a cover plate (6), wherein the casing test piece is a cylindrical thin-wall piece, the upper end surface and the lower end surface of the casing test piece are provided with convex table tops extending towards the horizontal direction, the convex table top of the lower end surface is provided with a connecting hole, the connecting hole is used for being connected with the base (1), the base (1) is of a disc structure, an annular bulge is arranged on the base (1), the upper end surface of the annular bulge of the base (1) is provided with a connecting hole, the base (1) is provided with the bottom cavity separating ring (2), the inner side wall of the bottom cavity separating ring (2) is flush with the inner side wall of the annular bulge of the base (1), the outer side wall of the bottom cavity separating ring (2) is the same as the inner side wall of the casing test piece, a cover plate (6) is arranged above the bottom cavity separating ring (2), and the outer side wall of the cover plate (6) is the same as the inner side wall of the casing test piece.
2. A multichamber casing pressure test device according to claim 1 wherein the upper outer edge of said bottom chamber divider ring (2) is provided with an L-shaped notch and the outer edge of said cover plate (6) is provided with a downwardly extending pointed structure.
3. A multichamber casing pressure test device according to claim 2 wherein a divider ring (3) is provided above said bottom chamber divider ring (2), the number of divider rings (3) being selected in accordance with the actual situation; the diameter of the maximum outer side edge of the separating ring (3) is the same as that of the maximum outer side edge of the bottom cavity separating ring (2), and an L-shaped notch is formed in the outer edge of the upper end of the separating ring (3); the outer edge of the separating ring (3) is provided with a sharp-angled structure extending downwards.
4. A multichamber casing pressure test device according to claim 1, wherein a hole is provided in the middle of said base (1) and cover plate (6).
5. The multichamber casing pressure test device of any of claims 2 or 3 wherein a seal is disposed within said L-shaped notch.
6. A multichamber casing pressure test device according to claim 1 wherein the side walls of said bottom chamber divider ring (2), divider ring (3) and base (1) are provided with water inlet and outlet pipes, the water inlet and outlet of said water inlet and outlet pipes being arranged above said cover plate (6).
7. A multichamber casing pressure test device according to claim 1, wherein two circular holes are provided in said cover plate (6).
8. A multichamber casing pressure test device according to claim 1 wherein said base (1) and casing test piece are correspondingly provided with a plurality of connection holes, said connection holes being distributed in an annular array.
9. A multi-chamber casing pressure test device according to claim 1, wherein a sealing gasket (a) is provided at the junction of the outer convex table surface provided at the lower end of the casing test piece and the base (1), and a rubber sealing gasket (d) is provided between the bottom chamber partition ring (2) and the base (1).
10. A method based on a multi-cavity casing pressure test device is characterized in that a casing test piece is installed on a base (1), a bottom cavity separating ring (2) and a cover plate (6) are sequentially placed in the casing test piece, a sealing gasket (a) is arranged between the casing test piece and the base (1), a rubber sealing gasket (d) is arranged between the bottom cavity separating ring (2) and the base (1), a sealing ring is arranged between the bottom cavity separating plate (2) and the cover plate (6), and then a compression stud (h) and a nut (i) are installed; sealing is achieved by tightening the nut (i).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111538273.8A CN114235590A (en) | 2021-12-15 | 2021-12-15 | Multi-cavity casing pressure test device and method |
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| CN202111538273.8A CN114235590A (en) | 2021-12-15 | 2021-12-15 | Multi-cavity casing pressure test device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115032083A (en) * | 2022-08-09 | 2022-09-09 | 中国航发沈阳发动机研究所 | Internal pressure test device for aero-engine combustion chamber casing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4528840A (en) * | 1984-02-06 | 1985-07-16 | Wass Lloyd G | Hydrostatic test stand |
| CN102928178A (en) * | 2012-10-31 | 2013-02-13 | 沈阳黎明航空发动机(集团)有限责任公司 | Differential-pressure sealing test device and test method thereof |
| CN105445026A (en) * | 2015-11-23 | 2016-03-30 | 成都发动机（集团）有限公司 | Device used for hydraulic test of aero-engine combustion chamber case diffuser |
| CN108827606A (en) * | 2018-04-04 | 2018-11-16 | 中国航发湖南动力机械研究所 | Casing hydrostatic power pressure experimental rig |
| CN109520741A (en) * | 2018-10-29 | 2019-03-26 | 中国航发沈阳发动机研究所 | A kind of aeroengine combustor buring room casing pressure experimental device |
| CN110926921A (en) * | 2019-11-22 | 2020-03-27 | 天津航天瑞莱科技有限公司 | Pressure test system of combustion chamber outer casing |
-
2021
- 2021-12-15 CN CN202111538273.8A patent/CN114235590A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4528840A (en) * | 1984-02-06 | 1985-07-16 | Wass Lloyd G | Hydrostatic test stand |
| CN102928178A (en) * | 2012-10-31 | 2013-02-13 | 沈阳黎明航空发动机(集团)有限责任公司 | Differential-pressure sealing test device and test method thereof |
| CN105445026A (en) * | 2015-11-23 | 2016-03-30 | 成都发动机（集团）有限公司 | Device used for hydraulic test of aero-engine combustion chamber case diffuser |
| CN108827606A (en) * | 2018-04-04 | 2018-11-16 | 中国航发湖南动力机械研究所 | Casing hydrostatic power pressure experimental rig |
| CN109520741A (en) * | 2018-10-29 | 2019-03-26 | 中国航发沈阳发动机研究所 | A kind of aeroengine combustor buring room casing pressure experimental device |
| CN110926921A (en) * | 2019-11-22 | 2020-03-27 | 天津航天瑞莱科技有限公司 | Pressure test system of combustion chamber outer casing |
Non-Patent Citations (1)
| Title |
|---|
| 王丹 等: "齿轮试验台多路变压力分油装置压力和流量仿真分析", 《机械科学与技术》, vol. 35, no. 5, 31 May 2016 (2016-05-31), pages 815 - 820 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115032083A (en) * | 2022-08-09 | 2022-09-09 | 中国航发沈阳发动机研究所 | Internal pressure test device for aero-engine combustion chamber casing |
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