CN214146572U - Probe sealing structure for high-pressure fluid pipeline - Google Patents
Probe sealing structure for high-pressure fluid pipeline Download PDFInfo
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- CN214146572U CN214146572U CN202022931402.7U CN202022931402U CN214146572U CN 214146572 U CN214146572 U CN 214146572U CN 202022931402 U CN202022931402 U CN 202022931402U CN 214146572 U CN214146572 U CN 214146572U
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Abstract
The utility model relates to a probe seal structure for high-pressure fluid pipeline, including the parts of obturating such as probe hole, sealed apron, fastening apron that are located on the ring flange to and seal the medium of obturating such as seal gasket, elastic sealing ring, seal the high-pressure fluid that leaks to the probe hole. The outer end face of the flange is provided with the probe hole along the radial direction, so that a probe sleeve positioned on the outer wall of the pipeline in the prior art is omitted, and the damage to the high-pressure pipeline caused by drilling, welding and the like in the sleeve installation process is avoided; meanwhile, sealing parts such as a sealing cover plate and a fastening cover plate are designed aiming at the high-pressure environment in the pipeline, and high-pressure fluid leaked from the probe hole is sealed by arranging a compression ring, a sealing groove and other matched auxiliary sealing structures, so that the sealing effect of the probe under the high-pressure environment is enhanced, and the stability and the reliability of the structure are improved.
Description
Technical Field
The utility model relates to a chemical industry and aviation field, concretely relates to probe seal structure under high pressure environment for the flow field is experimental in the pipeline.
Background
Compressors, expanders and the like are energy power equipment commonly used in the chemical field (such as compressed air energy storage systems) or the aviation field (such as aircraft engines), and in order to monitor the running condition of the equipment and evaluate the flow stability inside a pipeline, probes are required to be adopted to measure the temperature, the pressure and the like of a working medium in real time.
In the prior art, a probe measuring hole is arranged on the wall surface of a pipeline, a probe fixing sleeve is connected to the outer wall of the pipeline in a welding mode, and the probe is sealed by a method that a gland compresses a sealing filler. The technology needs operations such as drilling and welding on the outer wall of the pipeline, and the local pressure bearing capacity of the pipeline is adversely affected; in addition, the sealing of the technology is completed only by pressing the sealing packing by the gland, no special sealing structure is designed, the borne pressure is limited, the leakage is easy, the safety performance is poor, and the probe measurement requirement in a high-pressure environment can not be met.
Therefore, a novel probe sealing structure suitable for a high-pressure pipeline is urgently needed aiming at the working environment and the structural characteristics of the high-pressure pipeline.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect and not enough of prior art, the utility model provides a novel probe seal structure who is applicable to high-pressure environment. The position of the probe opening is located on a flange plate of a high-pressure fluid pipeline, and meanwhile, a sealing structure with a chute is designed, so that the sealing effect around the probe and the opening is improved.
In order to achieve the above technical objective, the utility model discloses the technical scheme who adopts as follows:
the utility model provides a probe seal structure for high-pressure fluid pipeline, includes probe, fastening apron, sealing ring, sealed apron at least, its characterized in that:
the high-pressure fluid pipeline is provided with a flange plate, the side wall of the flange plate is provided with a mounting plane, and the center of the mounting plane is provided with a flange probe hole which extends to the inside of the high-pressure fluid pipeline along the radial direction;
the sealing cover plate is fixedly arranged on the mounting plane of the flange plate through a fastener, a sealing gasket is arranged between the bottom surface of the sealing cover plate and the mounting plane of the flange plate, a sealing groove with at least a basically conical bottom is arranged at the center of the top surface of the sealing cover plate, and a sealing cover plate probe hole penetrating through the sealing groove is also arranged at the center of the sealing cover plate;
the fastening cover plate is fixedly arranged at the top of the sealing cover plate through a fastening piece, a pressing ring matched with the sealing groove at the top of the sealing cover plate is arranged at the center of the bottom of the fastening cover plate, the pressing ring is inserted into the sealing groove, an elastic sealing ring is arranged between the pressing ring and the sealing groove, and a fastening cover plate probe hole penetrating through the pressing ring is further arranged at the center of the fastening cover plate;
the probe penetrates through the fastening cover plate probe hole, the elastic sealing ring, the sealing cover plate probe hole, the sealing gasket and the flange probe hole in sequence, the tail end of the probe extends into the high-pressure fluid pipeline, and the probe is clamped and fixed through elastic deformation after the elastic sealing ring is compressed, so that gaps between the probe and the probe holes are sealed.
Preferably, a boss is arranged at the center of the bottom of the sealing cover plate, a gasket groove matched with the boss is arranged on the mounting plane of the flange plate, and the sealing gasket is arranged between the boss and the gasket groove.
Preferably, the flowing working medium in the high-pressure fluid pipeline is gas, liquid or multiphase flow.
Preferably, the lower surface of the pressing ring is a plane, an inclined plane or a curved surface.
Preferably, the elastic sealing ring is an O-ring or a sealing filler.
Preferably, the elastic sealing ring can be one or more, according to the requirements of pressure grade and reliability.
The utility model discloses a probe seal structure for high-pressure fluid pipeline compares with current probe seal structure and has following advantage: 1) the probe trompil is located the ring flange, avoids trompil and welded fastening sleeve on the pipeline, has both removed special probe bearing structure from, also can prevent the damage to high-pressure line such as drilling, welding, has improved the security. 2) The utility model discloses a clamping ring and seal groove cooperation can show the packing force that improves the elastic sealing ring, satisfy high-pressure environment's sealed demand. 3) The utility model discloses well seal groove structure can satisfy the installation of sealing medium commonly used such as O type circle or seal packing and use. 4) The utility model discloses the clamping ring of different acutance conical heads can be adopted to the adjustment packing force satisfies the sealed demand under the different pressure environment.
Drawings
Fig. 1 is a schematic view of the probe sealing structure (single elastic sealing ring) for high-pressure fluid pipeline according to the present invention.
Fig. 2 is a cross-sectional view of the probe sealing structure (single elastic sealing ring) for high-pressure fluid pipes according to the present invention.
Fig. 3 is a schematic view of the probe sealing structure (a plurality of elastic sealing rings) for high-pressure fluid pipeline according to the present invention.
Fig. 4 is a cross-sectional view of the probe sealing structure (a plurality of elastic sealing rings) for a high-pressure fluid pipeline according to the present invention.
Fig. 5 is a curve of the maximum sealing pressure of the sealing structure according to the present invention and the number of elastic sealing rings.
Description of reference numerals:
the probe 1, fasten apron 2, fasten apron screw 201, fasten apron probe hole 202, clamping ring 203, sealed apron 3, sealed apron screw 301, sealed apron screw hole 302, sealed apron probe hole 303, seal groove 304, boss 305, ring flange 4, flange screw hole 401, gasket recess 402, flange probe hole 403, elastic sealing ring 5, seal gasket 6.
Detailed Description
In order to make the purpose, technical solution and advantages of the present invention clearer, the following will combine the drawings in the embodiments of the present invention to perform more detailed description on the technical solution in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention. The structure and technical solution of the present invention will be further specifically described below with reference to the accompanying drawings, and an embodiment of the present invention is provided.
As shown in fig. 1 and 2, the utility model discloses a probe seal structure for high-pressure pipeline, including probe 1, fastening cover plate 2, fastening cover plate screw 201, fastening cover plate probe hole 202, clamping ring 203, sealed cover plate 3, sealed cover plate screw 301, sealed cover plate screw hole 302, sealed cover plate probe hole 303, seal groove 304, boss 305, ring flange 4, flange screw hole 401, gasket recess 402, flange probe hole 403, elastic sealing ring 5, seal gasket 6. The high-pressure fluid pipeline is provided with a flange plate 4, the side wall of the flange plate 4 is provided with a mounting plane, the center of the mounting plane is provided with a flange probe hole 403 which radially extends into the high-pressure fluid pipeline, and the aperture of the flange probe hole 403 is matched with the outer diameter of the probe 1; the sealing cover plate 3 is fixedly arranged on the mounting plane of the flange plate 4 through a fastening piece, a sealing gasket 6 is arranged between the bottom surface of the sealing cover plate 3 and the mounting plane of the flange plate 4, a sealing groove 304 with at least a basically conical bottom is arranged at the center of the top surface of the sealing cover plate 3, a sealing cover plate probe hole 303 penetrating through the sealing groove 304 is further arranged at the center of the sealing cover plate 3, the aperture of the sealing cover plate probe hole 303 is matched with the outer diameter of the probe 1, and the sealing cover plate probe hole 303 and the flange probe hole 403 are coaxially arranged; the fastening cover plate 2 is fixedly arranged at the top of the sealing cover plate 3 through a fastening piece, a pressing ring 203 matched with a sealing groove 304 at the top of the sealing cover plate 3 is arranged at the center of the bottom of the fastening cover plate 2, the pressing ring 203 is inserted into the sealing groove 304, an elastic sealing ring 5 is arranged between the pressing ring and the sealing groove, a fastening cover plate probe hole 202 penetrating through the pressing ring 203 is further arranged at the center of the fastening cover plate 2, and the fastening cover plate probe hole 202 and the sealing cover plate probe hole 303 are coaxially arranged; the probe 1 sequentially penetrates through the fastening cover plate probe hole 202, the elastic sealing ring 5, the sealing cover plate probe hole 303, the sealing gasket 6 and the flange probe hole 403, the tail end of the probe extends into the high-pressure fluid pipeline, and the probe 1 is clamped and fixed and the gap between the probe 1 and each probe hole is sealed through elastic deformation after the elastic sealing ring 5 is pressed; when the depth of the probe 1 needs to be adjusted and then the position of the measuring point of the probe 1 in the high-pressure fluid pipeline needs to be adjusted, the fastening piece for fastening the cover plate 2 needs to be unscrewed, so that the elastic sealing ring 5 is reduced in elastic deformation, and the probe 1 can move up and down.
In specific implementation, the sealing gasket 6 is placed in the gasket groove 402 of the flange 4, the boss 305 clamps the sealing gasket 6, and the sealing cover plate 3 is fixed by penetrating the sealing cover plate 3 through the sealing cover plate screw 301 and screwing the sealing cover plate into the flange threaded hole 401. The elastic sealing ring 5 is placed in the sealing groove 304, and the probe 1 sequentially penetrates through the sealing cover plate probe hole 303, the elastic sealing ring 5 and the flange probe hole 403 until reaching a proper measuring position in the pipeline. And (3) penetrating a probe hole 202 of the fastening cover plate through the probe 1 to enable the pressing ring 203 to clamp the elastic sealing ring 5, penetrating the fastening cover plate 2 by using a fastening cover plate screw 201, and screwing the fastening cover plate 2 into a threaded hole 302 of the sealing cover plate to fix the fastening cover plate 2. When the fastening cover plate screw 201 is screwed tightly, the pressing ring 203 is pressed downwards, the elastic sealing ring 5 is pressed tightly, and the gap between the probe hole and the probe is locked to seal the device. When the fastening cover plate screw 201 is unscrewed, the elastic sealing ring 5 is loosened, and at the moment, the probe can move up and down to adjust the position of the measuring point.
In addition, according to the requirements of pressure grade and reliability, the higher the pressure in the pipeline is, the more the number of sealing rings is required, and the probe sealing structure adopting a plurality of sealing rings is shown in fig. 3 and 4. The probe comprises a probe 1, a fastening cover plate 2, a fastening cover plate screw 201, a fastening cover plate probe hole 202, a pressing ring 203, a sealing cover plate 3, a sealing cover plate screw 301, a sealing cover plate threaded hole 302, a sealing cover plate probe hole 303, a sealing groove 304, a boss 305, a flange plate 4, a flange threaded hole 401, a gasket groove 402, a flange probe hole 403, an elastic sealing ring 5, a gasket 501 and a sealing gasket 6.
In specific implementation, the sealing gasket 6 is placed in the gasket groove 402 of the flange plate 4, the boss 305 clamps the gasket 6, and the sealing cover plate 3 is fixed by penetrating the sealing cover plate 3 through the sealing cover plate screw 301 and screwing the sealing cover plate into the flange threaded hole 401. The elastic sealing ring 5, the gasket 501 and the other sealing ring 5 are overlapped and placed in the sealing groove 304, and the probe 1 sequentially penetrates through the probe hole 303 of the sealing cover plate, the elastic sealing ring 5, the gasket 501, the other elastic sealing ring 5 and the flange probe hole 403 until reaching a proper measuring position in the pipeline. And (3) penetrating a probe hole 202 of the fastening cover plate through the probe 1 to enable the pressing ring 203 to clamp the elastic sealing ring 5, penetrating the fastening cover plate 2 by using a fastening cover plate screw 201, and screwing the fastening cover plate 2 into a threaded hole 302 of the sealing cover plate to fix the fastening cover plate 2. When the fastening cover plate screw 201 is screwed tightly, the pressing ring 203 is pressed downwards, the elastic sealing ring 5 and the gasket 501 are pressed tightly, and the gap between the probe hole and the probe is locked to seal the device. When the fastening cover plate screw 201 is unscrewed, the elastic sealing ring 5 and the gasket 501 are loosened, and at the moment, the probe can move up and down to adjust the position of the measuring point.
Fig. 5 is a graph of maximum sealing pressure versus number of resilient sealing rings using the seal arrangement. The maximum sealing pressures which can be met by the single, two and three elastic sealing rings are about 2MPa, 4MPa and 7MPa respectively. And as the number of the elastic sealing rings is increased, the effect of improving the maximum sealing pressure is more remarkable.
Through the above-mentioned embodiment, the purpose of the utility model is realized completely effectively. Those skilled in the art will appreciate that the present invention includes, but is not limited to, what is described in the accompanying drawings and the foregoing detailed description. While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications, which are within the spirit and scope of the appended claims.
Claims (5)
1. The utility model provides a probe seal structure for high-pressure fluid pipeline, includes probe, fastening apron, sealing ring, sealed apron at least, its characterized in that:
the high-pressure fluid pipeline is provided with a flange plate, the side wall of the flange plate is provided with a mounting plane, and the center of the mounting plane is provided with a flange probe hole which extends to the inside of the high-pressure fluid pipeline along the radial direction;
the sealing cover plate is fixedly arranged on the mounting plane of the flange plate through a fastener, a sealing gasket is arranged between the bottom surface of the sealing cover plate and the mounting plane of the flange plate, a sealing groove with at least a basically conical bottom is arranged at the center of the top surface of the sealing cover plate, and a sealing cover plate probe hole penetrating through the sealing groove is also arranged at the center of the sealing cover plate;
the fastening cover plate is fixedly arranged at the top of the sealing cover plate through a fastening piece, a pressing ring matched with the sealing groove at the top of the sealing cover plate is arranged at the center of the bottom of the fastening cover plate, the pressing ring is inserted into the sealing groove, an elastic sealing ring is arranged between the pressing ring and the sealing groove, and a fastening cover plate probe hole penetrating through the pressing ring is further arranged at the center of the fastening cover plate;
the probe penetrates through the fastening cover plate probe hole, the elastic sealing ring, the sealing cover plate probe hole, the sealing gasket and the flange probe hole in sequence, the tail end of the probe extends into the high-pressure fluid pipeline, and the probe is clamped and fixed through elastic deformation after the elastic sealing ring is compressed, so that gaps between the probe and the probe holes are sealed.
2. The probe sealing structure for high-pressure fluid pipes according to claim 1, wherein a boss is provided at the center of the bottom of the sealing cover plate, a gasket groove adapted to the boss is provided on the mounting plane of the flange plate, and the sealing gasket is provided between the boss and the gasket groove.
3. The probe sealing structure for a high-pressure fluid pipe according to claim 1, wherein the lower surface of the pressing ring is a flat surface, an inclined surface, or a curved surface.
4. The probe sealing structure for a high-pressure fluid pipe according to claim 1, wherein the elastic sealing ring is an O-ring or a sealing packing.
5. The probe sealing structure for a high pressure fluid pipe according to claim 1, wherein the elastic sealing ring is one or more tracks according to pressure rating and reliability requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022931402.7U CN214146572U (en) | 2020-12-07 | 2020-12-07 | Probe sealing structure for high-pressure fluid pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022931402.7U CN214146572U (en) | 2020-12-07 | 2020-12-07 | Probe sealing structure for high-pressure fluid pipeline |
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| Publication Number | Publication Date |
|---|---|
| CN214146572U true CN214146572U (en) | 2021-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022931402.7U Active CN214146572U (en) | 2020-12-07 | 2020-12-07 | Probe sealing structure for high-pressure fluid pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114544076A (en) * | 2022-02-23 | 2022-05-27 | 中国航发沈阳发动机研究所 | Pressure measuring probe |
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2020
- 2020-12-07 CN CN202022931402.7U patent/CN214146572U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114544076A (en) * | 2022-02-23 | 2022-05-27 | 中国航发沈阳发动机研究所 | Pressure measuring probe |
| CN114544076B (en) * | 2022-02-23 | 2024-04-09 | 中国航发沈阳发动机研究所 | Pressure measurement probe |
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