CN220288906U - Bellows subassembly pressure test device - Google Patents
Bellows subassembly pressure test device Download PDFInfo
- Publication number
- CN220288906U CN220288906U CN202321537827.7U CN202321537827U CN220288906U CN 220288906 U CN220288906 U CN 220288906U CN 202321537827 U CN202321537827 U CN 202321537827U CN 220288906 U CN220288906 U CN 220288906U
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- China
- Prior art keywords
- corrugated pipe
- main body
- pressing
- pressure test
- pressing main
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- 238000012360 testing method Methods 0.000 title claims abstract description 41
- 238000003825 pressing Methods 0.000 claims abstract description 63
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 238000012856 packing Methods 0.000 claims abstract description 21
- 210000004907 gland Anatomy 0.000 claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003335 Production assurance Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The pressure test device for the corrugated pipe assembly comprises a corrugated pipe and a corrugated pipe valve rod, wherein a corrugated pipe pressure plate is arranged at the end part of the corrugated pipe, a pressing main body and a pressing plate are respectively arranged above and below the corrugated pipe pressure plate, and a sealing device is arranged between the pressing main body and the pressing plate and between the pressing main body and the corrugated pipe pressure plate; a packing is arranged between the upper part of the pressing main body and the corrugated pipe valve rod, and a packing gland nut are also arranged on the upper part of the pressing main body; the pressing main body is provided with an air inlet. The pressure test device for the corrugated pipe assembly can realize one-time test and detect the pressure and the air tightness of the corrugated pipe assembly, and the double pipes are arranged simultaneously, so that time and labor are saved; meanwhile, the test device is simple in structure and convenient to operate, reduces nondestructive flaw detection procedures, saves resources and ensures the quality of the corrugated pipe.
Description
Technical Field
The utility model relates to the technical field of hydraulic control, in particular to a bellows assembly pressure test device.
Background
The bellows seal structure has wide application in valve manufacturing. The sealing material has extremely high sealing performance, is often used in occasions and nuclear industry with strict requirements on valve rod sealing, and is often extremely toxic or precious metal, so that the sealing material has extremely high requirements on the mechanical properties and welding inspection standards of corrugated pipes. Before the corrugated pipe assembly is assembled to the valve complete machine, a pressure test is carried out according to technical requirements, and the internal pressure of the corrugated pipe assembly and the welding air tightness are detected. If the metal bellows loses rigidity under the action of pressure to generate distortion or the welding part inside the bellows assembly has a leakage point, the use performance and the requirements of the bellows can not be ensured. These problems, once they flow into the next step of the assembly process, cause unnecessary losses such as repair rework.
Disclosure of Invention
The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing the pressure test device for the corrugated pipe assembly, which has a simple structure and good effect.
The utility model is realized by the following technical scheme: the corrugated pipe assembly pressure test device comprises a corrugated pipe and a corrugated pipe valve rod, wherein a corrugated pipe pressure plate is arranged at the end part of the corrugated pipe, a pressing main body and a pressing plate are respectively arranged above and below the corrugated pipe pressure plate, and a sealing device is arranged between the pressing main body and the pressing plate and between the pressing main body and the corrugated pipe pressure plate; a packing is arranged between the upper part of the pressing main body and the corrugated pipe valve rod, and a packing gland nut are also arranged on the upper part of the pressing main body; the pressing main body is provided with an air inlet.
It is further: the pressing main body and the pressing plate are connected together through bolts.
Grooves for placing sealing devices are formed in the pressing main body and the pressing plate.
The sealing device is a sealing ring.
The sealing ring is an O-shaped rubber ring.
The filler is a flexible graphite filler ring.
The air inlet is arranged at the middle position of the pressing main body.
The utility model has the following advantages: the pressure test device for the corrugated pipe assembly can realize one-time test and detect the pressure and the air tightness of the corrugated pipe assembly, and the double pipes are arranged simultaneously, so that time and labor are saved; meanwhile, the test device is simple in structure and convenient to operate, reduces nondestructive flaw detection procedures, saves resources and ensures the quality of the corrugated pipe.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort.
In the drawings:
fig. 1 is a schematic view of the overall structure of the present utility model.
In the figure: 1. bellows, 2, bellows pressure disk, 3, bellows valve rod, 4, clamp plate, 5, sealing washer, 6, the main part of beating, 7, packing, 8, gland, 9, gland nut, 10, air inlet.
It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The device for testing the pressure of the corrugated pipe assembly shown in fig. 1 comprises a corrugated pipe 1 and a corrugated pipe valve rod 3, wherein a corrugated pipe pressure plate 2 is arranged at the end part of the corrugated pipe 1, a pressing main body 6 and a pressing plate 4 are respectively arranged above and below the corrugated pipe pressure plate 2, and a sealing device is arranged between the pressing main body 6 and the pressing plate 4 and between the corrugated pipe pressure plate 2; a packing 7 is arranged between the upper part of the pressing main body 6 and the corrugated pipe valve rod 3, and a packing gland 8 and a packing gland nut 9 are also arranged on the upper part of the pressing main body 6; the pressing body 6 is provided with an air inlet 10. According to the bellows assembly pressure test device, the test device is additionally arranged outside the bellows assembly, so that the bellows pressure test is advanced until the whole valve body is assembled, reworking caused by unqualified bellows found in the subsequent process is avoided, and larger loss is avoided; the test device mainly comprises a pressing plate and a pressing main body, wherein the pressing plate and the pressing main body are used for wrapping a corrugated pipe pressing plate, the corrugated pipe pressing plate is sealed through a sealing device, in addition, one end of a corrugated pipe valve rod of a corrugated pipe assembly extends out of the pressing main body and is sealed with the pressing main body through packing, when the test device is used, after the corrugated pipe valve rod is installed, packing is pressed in, packing is pressed by a packing gland, and the packing gland is fastened on the main body through a packing gland nut, so that sealing of the corrugated pipe valve rod is realized; when the corrugated pipe assembly is tested, the test device is immersed in water, and whether bubbles are generated in the water or not is only required to be observed, and if not, the corrugated pipe assembly can be proved to be qualified in air tightness; after the pressing is finished, taking out the corrugated pipe assembly to check whether the corrugated pipe is distorted due to the internal pressure or not, and freely stretching or not; and if the mechanical properties are not damaged, the pressure test is qualified. After the bellows assembly pressure test and the tightness test are qualified, the bellows can be ensured to meet the use performance and requirements. And then the next assembly is carried out, so that the qualification rate and the efficiency are improved.
In the bellows assembly pressure test apparatus shown in fig. 1, the pressing body 6 and the pressing plate 4 are connected together by bolts. In the utility model, the corrugated pipe pressure plate is connected between the pressing main body and the pressure plate, and the pressing main body and the pressure plate are fixed in a mode of being convenient to operate, but are connected together by bolts, but are not limited to the bolt connection.
In the bellows assembly pressure test apparatus shown in fig. 1, grooves for accommodating sealing devices are formed in the pressing body 6 and the pressing plate 4. The sealing device is a sealing ring 5. The sealing ring 5 is an O-shaped rubber ring. The pressing main body and one surface of the pressing plate, which is in contact with the corrugated pipe pressure plate, are provided with grooves for placing the sealing device, so that the sealing effectiveness of the whole test device is ensured, wherein the sealing device adopts a sealing ring, and particularly an O-shaped rubber ring.
The packing 7 is a flexible graphite packing ring, and is a bellows assembly pressure test device as shown in fig. 1.
In the bellows assembly pressure test apparatus shown in fig. 1, the air inlet 10 is provided at an intermediate position of the pressing body 6. The air inlet is arranged in the middle of the main body, so that the inside of the corrugated pipe assembly can be rapidly and uniformly filled with air when being pressed, and the level and effect of a test are improved.
The pressure test device for the corrugated pipe assembly can replace nondestructive inspection to test the welding quality of the corrugated pipe assembly, can test whether the pressure of the corrugated pipe assembly meets the use condition, can realize simultaneous inspection of the pressure test and the air tightness test by one-time pressing, saves manpower and material resources, reduces the working procedure, and realizes the effect of win-win safety production and quality assurance.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the utility model may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features contained in other embodiments, but not others, combinations of features of different embodiments are equally meant to be within the scope of the utility model and form different embodiments. For example, in the above embodiments, those skilled in the art can use the above embodiments in combination according to known technical solutions and technical problems to be solved by the present application.
The foregoing description is only illustrative of the preferred embodiment of the present utility model, and is not to be construed as limiting the utility model, but is to be construed as limiting the utility model to any simple modification, equivalent variation and variation of the above embodiments according to the technical matter of the present utility model without departing from the scope of the utility model.
Claims (7)
1. A bellows subassembly pressure test device, its characterized in that: the novel corrugated pipe pressing device comprises a corrugated pipe (1) and a corrugated pipe valve rod (3), wherein a corrugated pipe pressing plate (2) is arranged at the end part of the corrugated pipe (1), a pressing main body (6) and a pressing plate (4) are respectively arranged above and below the corrugated pipe pressing plate (2), and a sealing device is arranged between the pressing main body (6), the pressing plate (4) and the corrugated pipe pressing plate (2); a packing (7) is arranged between the upper part of the pressing main body (6) and the corrugated pipe valve rod (3), and a packing gland (8) and a packing gland nut (9) are also arranged on the upper part of the pressing main body (6); an air inlet (10) is arranged on the pressing main body (6).
2. A bellows assembly pressure test apparatus as claimed in claim 1, wherein: the pressing main body (6) and the pressing plate (4) are connected together through bolts.
3. A bellows assembly pressure test apparatus as claimed in claim 1, wherein: grooves for placing sealing devices are formed in the pressing main body (6) and the pressing plate (4).
4. A bellows assembly pressure test apparatus as claimed in claim 1, wherein: the sealing device is a sealing ring (5).
5. A bellows assembly pressure test apparatus as claimed in claim 4, wherein: the sealing ring (5) is an O-shaped rubber ring.
6. A bellows assembly pressure test apparatus as claimed in claim 1, wherein: the packing (7) is a flexible graphite packing ring.
7. A bellows assembly pressure test apparatus as claimed in claim 1, wherein: the air inlet (10) is arranged at the middle position of the pressing main body (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321537827.7U CN220288906U (en) | 2023-06-16 | 2023-06-16 | Bellows subassembly pressure test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321537827.7U CN220288906U (en) | 2023-06-16 | 2023-06-16 | Bellows subassembly pressure test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220288906U true CN220288906U (en) | 2024-01-02 |
Family
ID=89341236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321537827.7U Active CN220288906U (en) | 2023-06-16 | 2023-06-16 | Bellows subassembly pressure test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220288906U (en) |
-
2023
- 2023-06-16 CN CN202321537827.7U patent/CN220288906U/en active Active
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