CN209927448U - Valve chamber pressure testing device - Google Patents
Valve chamber pressure testing device Download PDFInfo
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- CN209927448U CN209927448U CN201920950688.8U CN201920950688U CN209927448U CN 209927448 U CN209927448 U CN 209927448U CN 201920950688 U CN201920950688 U CN 201920950688U CN 209927448 U CN209927448 U CN 209927448U
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- ring
- valve chamber
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- valve
- sealing
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- 238000012360 testing method Methods 0.000 title claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 59
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 steam Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Details Of Valves (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model provides a valve chamber pressure test device. The valve chamber pressure testing device comprises: a sealing assembly disposed in a valve chamber of a valve as an object to be tested, the sealing assembly including a sealing ring, a mandrel, and a sealing plate, wherein one end of the mandrel passes through the sealing ring, the other end of the mandrel is assembled with the sealing plate, the sealing ring is disposed at a first port of the valve chamber and seals the first port of the valve chamber with respect to the outside, and the sealing plate is disposed at a second port of the valve chamber and seals the second port of the valve chamber with respect to the outside; and a retainer ring assembly disposed at the first port of the valve chamber to contact and define the position of the seal ring. Therefore, the valve chamber pressure test device can be easily mounted together with a valve such as an intake air amount adjusting valve of a steam turbine.
Description
Technical Field
The utility model relates to a valve chamber pressure test device.
Background
A plant such as a steam turbine may include a plurality of control valves to regulate the flow of fluids such as steam, water, etc. in the steam turbine. During installation, maintenance, etc., pressure testing of the control valve, for example, the valve chamber of the control valve, is required. In the pressure test process, it is necessary to use a pressure test device to perform a pressure (pressure) test after sealing the valve chamber.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve above-mentioned and/or other technical problem and provide a valve chamber pressure test device. Such a valve chamber pressure test device can be used for valve chamber pressure testing of an intake air amount regulating valve of a steam turbine, for example.
In one exemplary embodiment, the valve chamber pressure testing apparatus includes: a sealing assembly disposed in a valve chamber of a valve as an object to be tested, the sealing assembly including a sealing ring, a mandrel, and a sealing plate, wherein one end of the mandrel passes through the sealing ring, the other end of the mandrel is assembled with the sealing plate, the sealing ring is disposed at a first port of the valve chamber and seals the first port of the valve chamber with respect to the outside, and the sealing plate is disposed at a second port of the valve chamber and seals the second port of the valve chamber with respect to the outside; and a retainer ring assembly disposed at the first port of the valve chamber to contact and define the position of the seal ring.
The stop ring assembly comprises a plurality of (four) ring segments, each of the plurality of ring segments comprising: a mounting portion disposed in an annular groove in an inner wall of the first port; and a stopper portion extending from the mounting portion to protrude from the annular groove to contact the sealing ring and define a position of the sealing ring.
Each ring segment includes: the hoisting hole extends from the outer surface of the mounting part to the inside of the ring segment along the radial direction of the ring segment and has a shape matched with hoisting equipment for hoisting when the ring segment is mounted in the annular groove; and a position adjusting hole extending from side surfaces of the mounting portion and the limiting portion to the ring segment in an axial direction of the ring segment, and having a shape that a position adjusting device for adjusting a position of the ring segment in the annular groove is fitted when the ring segment is mounted in the annular groove.
The plurality of ring segments have an arcuate shape such that when the plurality of ring segments are installed into the annular groove, the plurality of ring segments form an annular shape in the annular groove.
The sealing ring comprises a stop recess in a surface of the sealing ring opposite the stop ring assembly, wherein the stop recess forms with an annular groove at the first port an accommodation space for accommodating the stop ring assembly when the sealing ring is mounted at the first port of the valve chamber.
The valve chamber pressure testing apparatus according to the exemplary embodiment can be conveniently installed as a valve combination as a test object, and can stably maintain the sealing combination of the valve chamber pressure testing apparatus and the valve, thereby performing a valve chamber pressure test of the valve.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein,
fig. 1 is a sectional view showing a valve chamber pressure testing apparatus installed in a valve chamber according to an exemplary embodiment;
FIG. 2 is a plan view showing a check ring assembly of a valve chamber pressure testing apparatus according to an exemplary embodiment;
FIG. 3 is a partial cross-sectional view taken along line A-A in FIG. 2 showing a check ring assembly of the valve chamber pressure testing apparatus according to an exemplary embodiment;
fig. 4 is a sectional view illustrating a seal ring according to an exemplary embodiment.
Description of reference numerals:
10-valve 100 seal assembly 300 stop collar assembly
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
Fig. 1 is a sectional view illustrating a valve chamber pressure testing apparatus installed in a valve chamber according to an exemplary embodiment. As shown in fig. 1, a valve chamber pressure testing apparatus according to an exemplary embodiment may include a sealing assembly 100 and a spacing ring assembly 300. Here, the valve chamber pressure test apparatus according to the exemplary embodiment may be used to perform a pressure or pressure test on the valve 10 included in, for example, a control valve such as the intake air amount adjusting valve SSV250, VKU200, CV50, etc. in a steam turbine such as SST400, SST600, and S17003, S17004 by siemens.
The seal assembly 100 may be disposed within a valve chamber of a valve 10 that is the subject to be tested. The seal assembly 100 may include a seal ring 110, a mandrel 130, and a seal plate 150. A sealing ring 110 may be provided at the first port of the valve chamber and seal the first port of the valve chamber with respect to the outside, e.g. together with the spindle 130 and other elements 132, 134, 135, 133, 176, etc. of the sealing assembly 100. The elements of the sealing assembly 100, namely the coupling screw 132, the sealing nut 134, the sealing ring 135, the sealing cap 133 and the sealing ring 176, are shown in fig. 1. Specifically, the mandrel 130 may couple and position the seal plate 150 and the seal ring 110 such that the sealing interface is fixed. The coupling bolt 132 can position and support the seal ring 110, the mandrel 130, the seal nut 134, the seal ring 135, the seal cap 133 and the seal ring 176 to each other for stable positioning and sealing.
One end of the mandrel 130 may be assembled with the sealing plate 150. The other end of the mandrel 130 may be disposed through the sealing ring 110.
A seal plate 150 may be disposed at the second port of the valve chamber and may seal the second port of the valve chamber from the outside. In one exemplary embodiment, the sealing plate 150 may be formed as a blind flange having a shape that matches the shape of the second port of the valve chamber.
A stop ring assembly 300 may be provided at the first port of the valve chamber to contact and define the position of the sealing ring 110. Fig. 2 is a plan view illustrating a retainer ring assembly 300 of a valve chamber pressure testing apparatus according to an exemplary embodiment, and fig. 3 is a partial sectional view taken along line a-a of fig. 2 illustrating the retainer ring assembly 300 of the valve chamber pressure testing apparatus according to an exemplary embodiment.
As shown in fig. 2 and 3, the stop ring assembly 300 may include a plurality (e.g., four) ring segments 310. Each ring segment may include a mounting portion 311 and a retaining portion 313 extending from the mounting portion 311. Here, each ring segment 310 may be integrated, that is, the mounting portion 311 and the stopper portion 313 may be integrally formed of a material such as steel, for example, rather than being combined of two different members, for example, the mounting portion 311 may be a portion of the integrally formed ring segment 310 disposed in an annular groove in an inner wall of the first port, and at the same time, the stopper portion 313 may be a portion protruding from the annular groove so as to contact the seal ring and define a position of the seal ring.
Ring segment 310 may include a lifting hole 315 for lifting. The lifting hole 315 may extend from the outer surface of the mounting portion 311 to the inside of the ring segment in the radial direction of the ring segment 310 or the stop ring assembly 300. The lifting holes 315 may be fitted with lifting equipment for the strip ring segments 310 when the ring segments 310 are installed into the annular groove, and may have a shape fitted with the lifting equipment, for example.
When ring segments 310 are installed into an annular groove, all ring segments 310 may form an annular shape. To this end, the ring segment 310 may be formed by and may have a body with a complete annular shape. As shown in fig. 2, the ring-shaped body may be horizontally cut to form four ring segments 310 having an arc shape. Here, the annular-shaped body may have an annular shape identical to that of the annular groove at the first port of the valve chamber, for example, an outer diameter of the annular-shaped body may be equal to or smaller than that of the annular groove. In addition, a portion of the ring-shaped body between the ring segments 310 may be removed by cutting, so that it is possible to secure a sufficient installation space when installing each ring segment 310 into the annular groove.
Further, the arcuate shaped ring segment 310 may include a position adjustment aperture 317. The position adjustment hole 317 may extend from side surfaces of the mounting portion 311 and the stopper portion 315 in an axial direction of the ring segment 310. The position adjustment hole 317 may have a shape that fits a position adjustment device for adjusting the position of the ring segment in the annular groove when the ring segment is installed in the annular groove. Thus, the position of the ring segment 310 in the annular groove may be adjusted by a position adjustment device.
Fig. 4 is a sectional view illustrating the seal ring 110 according to an exemplary embodiment. As described above, the retainer ring assembly 300 can be installed in a groove in the first port of the valve chamber and can contact the sealing ring 110 to restrain the position of the sealing ring 110. To this end, the sealing ring 110 includes a stopper recess 111. The spacing recess 11 may be located in a surface of the sealing ring 110 opposite the spacing ring assembly 300. So that the retainer recess 111 may form a receiving space with the annular groove at the first port for receiving the retainer ring assembly 300 when the seal ring 110 is installed at the first port of the valve chamber. Specifically, when the valve chamber pressure testing apparatus is installed, the sealing plate 150 may be first installed at the second port of the valve chamber, and then the mandrel 130 may be installed with one end assembled with the sealing plate 150. Subsequently, the sealing ring 110 can be mounted at the first port of the valve chamber such that the other end of the spindle 130 passes through the sealing ring 110. Finally, each ring segment 310 of the stop ring assembly 300 may be installed in the receiving space formed by the annular groove at the first port and the stop recess 111 of the seal ring 110, respectively, such that the installation portion 311 of the ring segment 310 is located in the annular groove and the stop portion 313 may protrude from the annular groove into the stop recess 111 and contact the seal ring 110. This allows the sealing ring 110 and the mandrel and the sealing plate 150 assembled with the sealing ring 110 to be confined in the valve chamber by the spacing ring assembly 300 to seal the valve chamber.
Further, the sealing ring 110 may further include a lifting hole 113 for lifting the sealing ring into the valve chamber, as shown in fig. 4.
A valve chamber pressure testing apparatus according to an exemplary embodiment may include a retainer ring assembly installed in an annular groove in a port of a valve chamber of a valve to be tested to define other components of the valve chamber pressure testing apparatus in the valve chamber, thereby enabling convenient installation of the valve chamber pressure testing apparatus and the valve and maintaining a coupling (e.g., a sealing coupling) therebetween.
It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention.
Claims (6)
1. Valve chamber pressure test device, characterized in that, valve chamber pressure test device includes:
a sealing assembly (100) disposed in a valve chamber of a valve (10) to be tested, the sealing assembly including a sealing ring (110), a mandrel (130) and a sealing plate (150), wherein one end of the mandrel passes through the sealing ring, and the other end of the mandrel is assembled with the sealing plate, the sealing ring is disposed at a first port of the valve chamber and seals the first port of the valve chamber with respect to the outside, and the sealing plate is disposed at a second port of the valve chamber and seals the second port of the valve chamber with respect to the outside;
a retainer ring assembly (300) is disposed at the first port of the valve chamber to contact and define the position of the seal ring.
2. The valve chamber pressure testing apparatus of claim 1, wherein the retainer ring assembly comprises a plurality of ring segments (310), each of the plurality of ring segments comprising:
a mounting portion (311) disposed in an annular groove in an inner wall of the first port;
and a stopper portion (313) extending from the mounting portion to protrude from the annular groove to contact the seal ring and define a position of the seal ring.
3. The valve chamber pressure testing apparatus of claim 2, wherein each ring segment comprises:
a hoisting hole (315) extending from the outer surface of the mounting portion to the inside of the ring segment in the radial direction of the ring segment and having a shape that fits a hoisting device for hoisting when the ring segment is mounted in the annular groove;
and a position adjusting hole (317) extending from the side surfaces of the mounting portion and the limiting portion to the ring segment in the axial direction of the ring segment and having a shape that a position adjusting device for adjusting the position of the ring segment in the annular groove is fitted when the ring segment is mounted in the annular groove.
4. The valve chamber pressure testing apparatus of claim 2, wherein the plurality of ring segments have an arcuate shape such that when installed in the annular groove, the plurality of ring segments form an annular shape in the annular groove.
5. The valve chamber pressure test apparatus of claim 1, wherein the seal ring includes a retainer recess (111) in a surface of the seal ring opposite the retainer ring assembly, wherein the retainer recess and the annular groove at the first port form a receiving space for receiving the retainer ring assembly when the seal ring is installed at the first port of the valve chamber.
6. The valve compartment pressure testing arrangement of claim 1, wherein the valve compartment pressure testing arrangement is configured to be installed into an intake air quantity regulating valve of a steam turbine to perform a valve compartment pressure test on the intake air quantity regulating valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920950688.8U CN209927448U (en) | 2019-06-24 | 2019-06-24 | Valve chamber pressure testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920950688.8U CN209927448U (en) | 2019-06-24 | 2019-06-24 | Valve chamber pressure testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209927448U true CN209927448U (en) | 2020-01-10 |
Family
ID=69093224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920950688.8U Active CN209927448U (en) | 2019-06-24 | 2019-06-24 | Valve chamber pressure testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209927448U (en) |
-
2019
- 2019-06-24 CN CN201920950688.8U patent/CN209927448U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.3, Gaoxin 7 Road, high tech Industrial Development Zone, Huludao City, Liaoning Province, 125000 Patentee after: Siemens Energy Industry Turbine Machinery (Huludao) Co.,Ltd. Address before: No.3, Gaoxin 7 Road, high tech Industrial Development Zone, Huludao City, Liaoning Province, 125000 Patentee before: SIEMENS INDUSTRIAL TURBOMACHINERY (HULUDAO) Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |