CN217505425U - Pressure-tight seal test device for welding seam of nozzle shell assembly - Google Patents
Pressure-tight seal test device for welding seam of nozzle shell assembly Download PDFInfo
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- CN217505425U CN217505425U CN202221580693.2U CN202221580693U CN217505425U CN 217505425 U CN217505425 U CN 217505425U CN 202221580693 U CN202221580693 U CN 202221580693U CN 217505425 U CN217505425 U CN 217505425U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model discloses a pressure seal test device of nozzle housing subassembly welding seam, include: a mounting frame; the nozzle fixing seat is fixedly arranged on the mounting frame, and a first through hole is formed in the nozzle fixing seat in the vertical direction; the large end plugging component is fixedly arranged on the mounting frame and positioned on one side above the nozzle fixing seat; the small end plugging component is fixedly arranged on the mounting frame and positioned below the first through hole to form a communicating cavity communicated with the cavity in the nozzle shell component; and one end of the pressure pipe is communicated with the communicating cavity, and the other end of the pressure pipe is communicated with the tester. The utility model discloses a pressure seal test device, the dismouting is convenient, and the leakproofness is good, and is easy and simple to handle, and loading and the withstand voltage medium mode of uninstallation are safe steady, and experimental detection accuracy is high.
Description
Technical Field
The utility model relates to a welding seam pressure seal test technical field especially relates to a pressure seal test device of nozzle housing subassembly welding seam.
Background
The nozzle shell assembly is an important part of an aircraft engine, and is composed of a shell and a hollow pipe as shown in figure 1, wherein the bottom end of the shell is provided with a small end, an installation part is arranged on the outer wall close to the top end, the top end is provided with a large end extending to the inclined upper part, the inside of the nozzle shell assembly is respectively provided with a cavity communicated with the small end and the large end, the hollow pipe is arranged in the cavity, the bottom end of the nozzle shell assembly extends out of the small end, the top end of the nozzle shell assembly penetrates through the outer wall of the cavity and is connected with the shell in a welded mode, and a welding seam is formed at the joint of the nozzle shell assembly and the large end. The welding seam of the nozzle shell assembly needs to be subjected to pressure-resistant sealing test detection under rated pressure, and the welding quality is judged according to whether the welding seam leaks or not. The clamping and sealing of the nozzle shell assembly are inconvenient, so that a test device is urgently needed to realize the pressure-resistant sealing test of the nozzle shell assembly.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defect or not enough among the prior art, it is desirable to provide a pressure seal test device of nozzle housing subassembly welding seam, and the dismouting is convenient, and the leakproofness is good, and is easy and simple to handle, and the pressure medium mode of loading and uninstallation is safe and stable, and the test detects the accuracy height.
The utility model provides a pair of pressure tight seal test device of nozzle housing subassembly welding seam, include:
a mounting frame;
the nozzle fixing seat is fixedly arranged on the mounting frame, a first through hole is formed in the nozzle fixing seat in the vertical direction, and pressing plates are respectively installed on the two sides, located on the first through hole, of the top surface of the nozzle fixing seat through screws and used for pressing and fixing the nozzle shell assembly;
the large end plugging component is fixedly arranged on the mounting frame, is positioned on one side above the nozzle fixing seat and is used for plugging the top end of the nozzle shell component;
the small end plugging component is fixedly arranged on the mounting frame, is positioned below the first through hole, is used for plugging the bottom end of the nozzle shell component and forms a communicating cavity communicated with the cavity in the nozzle shell component;
and one end of the pressure pipe is communicated to the communicating cavity, the other end of the pressure pipe is communicated to the tester, a high-pressure three-way switch valve is arranged on the pressure pipe, and the high-pressure three-way switch valve is connected with a pressure relief pipe.
Furthermore, a plurality of groups of matched nozzle fixing seats, large end plugging assemblies and small end plugging assemblies are arranged on the mounting frame at equal intervals; the pressure pipes connected with the adjacent communicating cavities are connected through a ferrule three-way joint; the nozzle fixing seat is connected with the large end plugging component through a bearing pull rod.
Further, the small-tip plugging component comprises:
the seat plate is fixedly arranged on the mounting frame, and a second through hole is formed in the seat plate along the vertical direction;
the plugging sleeve penetrates through the second through hole, the inner wall of the plugging sleeve is provided with internal threads, and the bottom end of the outer wall of the plugging sleeve is provided with external threads;
the locking nut is in threaded connection with the bottom end of the plugging sleeve;
the plugging screw plug extends into the plugging sleeve from the bottom end and is in threaded connection with the plugging sleeve, a first sealing blind hole is formed in the top end of the plugging screw plug, and a first sealing ring is arranged at the top end of the first sealing blind hole;
the end sealing element, integrative set up in the telescopic top of shutoff, the external diameter of end sealing element is greater than the internal diameter of second through-hole, the sealed blind hole of second has been seted up at the top of end sealing element, be provided with the second sealing washer on the inner wall of the sealed blind hole of second, the bottom of the sealed blind hole of second corresponds first sealed blind hole is provided with the third through-hole, the bottom embedding of nozzle housing assembly the sealed blind hole of second the bottom of the sealed blind hole of second forms the intercommunication chamber, nozzle housing assembly's hollow tube passes the third through-hole stretches into in the first sealed blind hole.
Further, the big-end plugging assembly comprises:
the mounting plate is fixedly arranged on the mounting frame, and a screw hole is formed in the mounting plate;
the ejector rod is in threaded connection with the screw hole, one end of the ejector rod is fixedly sleeved with a plug extending into the top end of the nozzle shell assembly, the other end of the ejector rod is fixedly connected with a rotary rod, and a circle of third sealing ring is arranged on the periphery of the plug.
Further, a tray is fixedly arranged at the bottom of the mounting rack.
Furthermore, the inner diameter of the top end of the third through hole is gradually increased from bottom to top to form a guide hole.
Furthermore, the first sealing ring, the second sealing ring and the plug are all made of fluororubber materials.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses a pressure seal test device is provided with nozzle fixing base, big end shutoff subassembly and little end shutoff subassembly. The bottom end of the nozzle shell component penetrates through the first through hole in the nozzle fixing seat and then is embedded into the small end plugging component, and a communicating cavity communicated with the cavity in the nozzle shell component is formed in the small end plugging component. The pressure plate is pressed on the mounting part of the nozzle shell assembly to fix the nozzle shell assembly on the nozzle fixing seat. The tester then injects a pressure-resistant medium through a pressure tube into the communicating cavity, and the pressure-resistant medium enters the cavity in the nozzle housing assembly through the annular cavity opening between the hollow tube and the housing, so that air is removed. And then plugging the top end of the nozzle shell component through the large-end plugging component, setting pressure-resistant medium pressure by the tester, and detecting the leakage condition at the welding line by adopting oil absorption test paper after maintaining the pressure for specified time. And after the detection is finished, the high-pressure three-way switch valve is turned off to the pressure relief pipe, the pressure in the nozzle shell assembly is relieved, the large-end plugging assembly is pulled out, the plugging screw plug of the small-end plugging assembly is loosened, the screw is loosened, the pressing plate is detached, and the nozzle shell assembly is detached.
The pressure-resistant sealing test device is convenient to disassemble and assemble, good in sealing performance, simple and convenient to operate, safe and stable in loading and unloading pressure-resistant medium modes, and high in test detection accuracy.
(2) The utility model discloses a pressure seal test device is provided with many detection stations, is connected to the tester jointly through cutting ferrule three way connection, has realized detecting when a plurality of nozzle housing subassemblies, very big improvement test efficiency.
It should be understood that what is described in this summary section is not intended to limit key or critical features of embodiments of the invention, nor is it intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
FIG. 1 is a schematic structural view of a nozzle housing assembly;
FIG. 2 is a schematic top view of the pressure-tight seal test apparatus;
FIG. 3 is a schematic diagram of a side view of a pressure seal test apparatus;
FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3;
FIG. 5 is an enlarged view of the structure at B in FIG. 3;
fig. 6 is a schematic structural view of a multi-station pressure-resistant seal testing device.
Reference numbers in the figures: 1. a nozzle housing assembly; 2. a mounting frame; 3. a nozzle fixing seat; 4. a large end plugging component; 5. a small end plugging component; 6. a pressure pipe; 7. a bearing pull rod; 8. a tray;
11. a housing; 12. a hollow tube;
31. a first through hole; 32. pressing a plate;
41. mounting a plate; 42. a screw hole; 43. a top rod; 44. blocking; 45. rotating the rod; 46. a third seal ring;
51. a communicating cavity; 52. a seat plate; 53. a second through hole; 54. plugging the sleeve; 55. locking the nut; 56. plugging a screw plug; 57. a first blind sealing hole; 58. a first seal ring; 59. an end seal; 510. a second blind sealing hole; 511. a second seal ring; 512. a third through hole;
61. a high-pressure three-way switch valve; 62. a cutting sleeve three-way joint.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1 to 6, an embodiment of the present invention provides a pressure sealing test apparatus for a nozzle housing assembly weld joint, including:
a mounting frame 2;
the nozzle fixing seat 3 is fixedly arranged on the mounting frame 2, a first through hole 31 is formed in the nozzle fixing seat 3 in the vertical direction, and pressing plates 32 are respectively mounted on the two sides, located on the first through hole 31, of the top surface of the nozzle fixing seat 31 through screws and used for pressing and fixing the nozzle shell assembly 1;
the large end plugging component 4 is fixedly arranged on the mounting frame 2, is positioned on one side above the nozzle fixing seat 3 and is used for plugging the top end of the nozzle shell component 1;
the small end plugging component 5 is fixedly arranged on the mounting frame 2, is positioned below the first through hole 31, is used for plugging the bottom end of the nozzle shell component 1 and forms a communicating cavity 31 communicated with a cavity in the nozzle shell component 1;
one end of the pressure pipe 6 is communicated with the communicating cavity 31, the other end of the pressure pipe 6 is communicated with the tester, a high-pressure three-way switch valve 61 is arranged on the pressure pipe 6, and the high-pressure three-way switch valve 61 is connected with a pressure relief pipe.
In this embodiment, the mounting bracket 2 is composed of two side supporting plates, and the nozzle fixing base 3, the large end plugging component 4 and the small end plugging component 5 are all arranged between the two side supporting plates.
When a pressure sealing test of a welding seam of the nozzle shell assembly is carried out, the nozzle shell assembly 1 is firstly installed on a test device, the bottom end of the nozzle shell assembly is embedded into the small end plugging assembly 5, and a communicating cavity 51 communicated with a cavity in the nozzle shell assembly 1 is formed in the small end plugging assembly 5. The nozzle housing assembly 1 is then pressed and fixed by the pressure plate 32.
Then the tester injects the pressure medium into the cavity in the nozzle shell component 1 through the pressure pipe and the communicating cavity, and after air is removed, the top end of the nozzle shell component 1 is blocked through the large-end blocking component 4. The tester sets the pressure of a pressure-resistant medium, and after the pressure is maintained for a specified time, the oil absorption test paper is adopted to detect the leakage condition at the welding seam. After the detection is finished, the high-pressure three-way switch valve 61 is turned off to the pressure relief pipe, and the nozzle shell assembly 1 is detached after the pressure in the nozzle shell assembly 1 is relieved.
The pressure-resistant sealing test device is convenient to disassemble and assemble, good in sealing performance, simple and convenient to operate, safe and stable in loading and unloading pressure-resistant medium modes, and high in test detection accuracy.
In a preferred embodiment, as shown in fig. 6, the mounting frame 2 is provided with multiple sets of matched nozzle fixing seats 3, large end plugging assemblies 4 and small end plugging assemblies 5 at equal intervals; the pressure pipes 6 connected with the adjacent communication cavities 51 are connected through a ferrule three-way joint 62; the nozzle fixing seat 3 is connected with the large end plugging component 4 through a bearing pull rod 7.
In this embodiment, a plurality of detection stations of arranging simultaneously on the mounting bracket 2, through cutting ferrule three way connection intercommunication between the adjacent detection station, be connected to the tester jointly again, detect when having realized a plurality of nozzle housing subassembly 1, very big improvement test efficiency. And in the adjacent detection stations, a bearing pull rod 7 is arranged between the nozzle fixing seat 3 and the large-end plugging component 4 to bear the pressure of the large-end plugging component 4 from the nozzle shell component 1, so that the structural stability of the multi-station test device is improved.
In a preferred embodiment, as shown in figures 3 and 4, the small tip occluding component 5 comprises:
the seat plate 52 is fixedly arranged on the mounting frame 2, and a second through hole 53 is formed in the seat plate 52 along the vertical direction;
the plugging sleeve 54 penetrates through the second through hole 53, the inner wall of the plugging sleeve 54 is provided with internal threads, and the bottom end of the outer wall is provided with external threads;
the locking nut 55 is in threaded connection with the bottom end of the plugging sleeve 54;
the plugging screw plug 56 extends into the plugging sleeve 54 from the bottom end and is in threaded connection with the plugging sleeve 54, a first sealing blind hole 57 is formed in the top end of the plugging screw plug 56, and a first sealing ring 58 is arranged at the top end of the first sealing blind hole 57;
In this embodiment, after the bottom end of the nozzle housing assembly 1 is inserted into the second blind sealing hole 510, the hollow tube 12 extends into the blocking sleeve 54 through the third through hole 512. The bottom end of the nozzle housing assembly 1 is spaced from the bottom of the second blind sealing hole 510 to form a communication chamber 51, and the second sealing ring 511 ensures the sealing performance of the communication chamber 51. The plugging screw plug 56 is screwed into the plugging sleeve 54, a first blind sealing hole 57 at the top end of the plugging screw plug 56 is sleeved at the bottom end of the hollow tube 12, and the bottom end of the hollow tube 12 is plugged through a first sealing ring 58. The installation is convenient, and the leakproofness is good, and has realized the intercommunication of cavity in the nozzle housing subassembly 1 and tester through pressure pipe 6.
In a preferred embodiment, as shown in figures 3 and 5, the large-tip plugging assembly 4 comprises:
the mounting plate 41 is fixedly arranged on the mounting frame 2, and a screw hole 42 is formed in the mounting plate 41;
and the ejector rod 43 is in threaded connection with the screw hole 42, one end of the ejector rod is fixedly sleeved with a plug 44 extending into the top end of the nozzle shell assembly 1, the other end of the ejector rod is fixedly connected with a rotating rod 45, and the periphery of the plug 44 is provided with a circle of third sealing ring 46.
In this embodiment, the rotating rod 45 rotates the push rod 43, the push rod 43 moves towards the nozzle housing assembly 1, the plug 44 is pushed into the top end of the nozzle housing assembly 1, and the plug 44 cooperates with the third sealing ring 46 to plug the top end of the nozzle housing assembly 1, so that a closed detection space is formed in a cavity in the nozzle housing assembly 1. The operation is convenient, and the plugging effect is good.
In a preferred embodiment, as shown in fig. 3 and 6, a tray 8 is fixedly arranged at the bottom of the mounting frame 2 and is used for containing pressure-resistant medium leaked in the test process so as to avoid polluting the test environment.
In a preferred embodiment, as shown in fig. 4, the inner diameter of the top end of the third through hole 512 gradually increases from bottom to top to form a guiding hole, so that the hollow tube 12 can accurately extend into the blocking sleeve 54 through the third through hole 512.
In a preferred embodiment, the first seal ring 58, the second seal ring 511 and the third seal ring 46 are made of fluororubber material, which is oil-resistant, corrosion-resistant and long in service life.
In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the description of the present application, the description of the terms "one embodiment," "some embodiments," etc. means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (7)
1. The utility model provides a pressure seal test device of nozzle housing subassembly welding seam which characterized in that includes:
a mounting frame;
the nozzle fixing seat is fixedly arranged on the mounting frame, a first through hole is formed in the nozzle fixing seat in the vertical direction, and pressing plates are respectively installed on the two sides, located on the first through hole, of the top surface of the nozzle fixing seat through screws and used for pressing and fixing the nozzle shell assembly;
the large end plugging component is fixedly arranged on the mounting frame, is positioned on one side above the nozzle fixing seat and is used for plugging the top end of the nozzle shell component;
the small end plugging component is fixedly arranged on the mounting frame, is positioned below the first through hole, is used for plugging the bottom end of the nozzle shell component and forms a communicating cavity communicated with the cavity in the nozzle shell component;
and one end of the pressure pipe is communicated to the communicating cavity, the other end of the pressure pipe is communicated to the tester, a high-pressure three-way switch valve is arranged on the pressure pipe, and the high-pressure three-way switch valve is connected with a pressure relief pipe.
2. The pressure-resistant sealing test device for the welding seam of the nozzle shell assembly according to claim 1, wherein a plurality of groups of matched nozzle fixing seats, large-end plugging assemblies and small-end plugging assemblies are arranged on the mounting frame at equal intervals; the pressure pipes connected with the adjacent communicating cavities are connected through a ferrule three-way joint; the nozzle fixing seat is connected with the large end plugging component through a bearing pull rod.
3. The nozzle housing assembly weld pressure seal testing apparatus of claim 2, wherein the small tip plugging assembly comprises:
the seat plate is fixedly arranged on the mounting frame, and a second through hole is formed in the seat plate along the vertical direction;
the plugging sleeve penetrates through the second through hole, an internal thread is arranged on the inner wall of the plugging sleeve, and an external thread is arranged at the bottom end of the outer wall of the plugging sleeve;
the locking nut is in threaded connection with the bottom end of the plugging sleeve;
the plugging screw plug extends into the plugging sleeve from the bottom end and is in threaded connection with the plugging sleeve, a first sealing blind hole is formed in the top end of the plugging screw plug, and a first sealing ring is arranged at the top end of the first sealing blind hole;
the end sealing element, integrative set up in the telescopic top of shutoff, the external diameter of end sealing element is greater than the internal diameter of second through-hole, the sealed blind hole of second has been seted up at the top of end sealing element, be provided with the second sealing washer on the inner wall of the sealed blind hole of second, the bottom of the sealed blind hole of second corresponds first sealed blind hole is provided with the third through-hole, the bottom embedding of nozzle housing assembly the sealed blind hole of second the bottom of the sealed blind hole of second forms the intercommunication chamber, nozzle housing assembly's hollow tube passes the third through-hole stretches into in the first sealed blind hole.
4. The nozzle housing assembly weld pressure seal testing apparatus of claim 3, wherein the large tip plugging assembly comprises:
the mounting plate is fixedly arranged on the mounting frame, and a screw hole is formed in the mounting plate;
the ejector rod is in threaded connection with the screw hole, one end of the ejector rod is fixedly sleeved with a plug extending into the top end of the nozzle shell assembly, the other end of the ejector rod is fixedly connected with a rotary rod, and a circle of third sealing ring is arranged on the periphery of the plug.
5. The apparatus for pressure tight seal testing of a nozzle housing assembly weld according to claim 4, wherein a tray is fixedly disposed at the bottom of the mounting bracket.
6. The apparatus for pressure tight seal testing of a weld of a nozzle housing assembly of claim 3, wherein the inside diameter of the top end of said third through hole gradually increases from bottom to top to form a pilot hole.
7. The apparatus for testing the pressure-tight seal of a weld of a nozzle housing assembly according to claim 4, wherein the first, second and third seal rings are made of a fluororubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221580693.2U CN217505425U (en) | 2022-06-23 | 2022-06-23 | Pressure-tight seal test device for welding seam of nozzle shell assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221580693.2U CN217505425U (en) | 2022-06-23 | 2022-06-23 | Pressure-tight seal test device for welding seam of nozzle shell assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217505425U true CN217505425U (en) | 2022-09-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221580693.2U Active CN217505425U (en) | 2022-06-23 | 2022-06-23 | Pressure-tight seal test device for welding seam of nozzle shell assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217505425U (en) |
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2022
- 2022-06-23 CN CN202221580693.2U patent/CN217505425U/en active Active
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