CN112303233A - High temperature resistant, resistant high pressure gas moves cauldron body of seal structure - Google Patents
High temperature resistant, resistant high pressure gas moves cauldron body of seal structure Download PDFInfo
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- CN112303233A CN112303233A CN202010399891.8A CN202010399891A CN112303233A CN 112303233 A CN112303233 A CN 112303233A CN 202010399891 A CN202010399891 A CN 202010399891A CN 112303233 A CN112303233 A CN 112303233A
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- ring
- sealing ring
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- movable sealing
- pull rod
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/162—Special parts or details relating to lubrication or cooling of the sealing itself
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kettle body with a high-temperature-resistant and high-pressure-resistant gas dynamic sealing structure is used for a pressure container for carrying out a tensile test on a sample under high-temperature and high-pressure environments. The kettle body is connected with the kettle cover, a hollow metal O-shaped ring is arranged between the kettle body and the kettle cover, a pull rod is arranged in the center of the kettle cover, a first dynamic sealing ring is arranged between the kettle cover and the pull rod, the water jacket is fixedly connected to the center of the outer side of the kettle cover, the compression ring is connected with the water jacket, a third dynamic sealing ring is arranged between the compression ring and the water jacket, the gland is in threaded connection with the compression ring, and a second; the openings of the three movable sealing rings in the installation direction face to the pressure side, the second movable sealing ring and the third movable sealing ring are installed in a mirror image mode, and the pull rod axially displaces under the action of the movable sealing rings, so that high-temperature and high-pressure gas in the kettle body cannot leak. The invention can ensure the simultaneous realization of the sealing and the axial displacement of the kettle body, can provide local cooling for the sealing, greatly improves the sealing service life and the reliability, and makes the research and development of test equipment of materials under special environment possible.
Description
Technical Field
The invention relates to the technical field of pressure containers, in particular to a kettle body of a dynamic sealing structure resistant to high temperature and high pressure gas.
Background
Under the same pressure condition, the requirement of gas sealing is higher compared with hydraulic sealing, the difficulty of gas static sealing at high temperature is higher, and test equipment for evaluating the rust resistance and corrosion resistance of materials is less. With the rapid development of modern industries such as automobiles, various antirust materials are applied more and more, and therefore, it is more and more important to research a kettle body of a high-temperature-resistant and high-pressure-resistant gas dynamic sealing structure for testing a material sample by simulating high-temperature and high-pressure gas under a specific environment.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the kettle body of the high-temperature-resistant and high-pressure-resistant gas dynamic sealing structure, which can realize dynamic sealing in a high-temperature and high-pressure gas environment when the materials are subjected to performance tests such as rust prevention, corrosion resistance and the like.
In order to achieve the purpose, the kettle body is connected with the kettle cover through a first screw, a high-temperature resistant hollow metal O-shaped ring is arranged between the kettle body and the kettle cover, a pull rod capable of moving axially is arranged in the center of the kettle cover, a first movable sealing ring is arranged between the kettle cover and the pull rod, a water jacket is fixedly connected to the center of the outer side of the kettle cover through a second screw, a third screw is arranged between the pressing ring and the water jacket, a third movable sealing ring is arranged between the pressing ring and the water jacket, a pressing cover is in threaded connection with the pressing ring; the openings of the first dynamic seal ring, the second dynamic seal ring and the third dynamic seal ring in the installation direction face to one side with pressure, the second dynamic seal ring and the third dynamic seal ring are installed in a mirror image mode, and the pull rod axially displaces under the dynamic sealing action of the first dynamic seal ring, the second dynamic seal ring and the third dynamic seal ring, so that high-temperature and high-pressure gas in the kettle body cannot leak.
The kettle cover is provided with three sample clamp rods through threaded connection, the sample clamp rods are connected with the sample clamp bottom plate through screws, the pull rod and the sample clamp bottom plate are connected with a sample through a plate-shaped sample connector II and a plate-shaped sample connector I respectively, and the sample is subjected to a tensile test in a high-temperature and high-pressure environment in the kettle body.
The water jacket is provided with a first pipe joint and a second pipe joint, the first movable sealing ring is cooled through a circulating medium, the water jacket and a boss on the kettle cover carry out axial positioning on the first movable sealing ring, the water jacket and the boss on the pressing ring carry out axial positioning on the third movable sealing ring, and the screw thread connection between the pressing cover and the pressing ring carries out axial positioning on the second movable sealing ring through the boss on the pressing ring.
The center of the pull rod is provided with an axial hole for ventilation and a radial hole communicated with the axial hole, and the pressure in the kettle body is introduced into a gap among the pressure ring, the pressure cover and the pull rod.
Compared with the prior art, the invention can ensure the simultaneous realization of the sealing and the axial displacement of the kettle body through the dynamic sealing structure under the high-temperature and high-pressure gas environment, and can realize the problem of gas sealing by only three sets of sealing through the gas passage at the center of the pull rod; the medium with low temperature is introduced into the outer side of the seal with high temperature, so that the local cooling can be provided for the seal, the service life and the reliability of the seal are greatly improved, and the sealing cost is greatly reduced; if corrosive gas is introduced, the kettle body and the sealing material can be correspondingly adjusted, so that research and development of the material in test equipment under special environment become possible.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a partial sectional view B-B of fig. 2.
Detailed Description
As shown in fig. 1, 2 and 3, the kettle body 2 and the kettle cover 7 are connected through a first screw 8, and a high-temperature resistant hollow metal O-shaped ring 6 is arranged between the first screw and the kettle cover; a pull rod 13 capable of moving axially is arranged in the center of the kettle cover 7, a first dynamic seal ring 9 is arranged between the kettle cover 7 and the pull rod 13, an axial hole for ventilation and a radial hole communicated with the axial hole are formed in the center of the pull rod 3, and pressure in the kettle body 2 is introduced into a gap among the pressure ring 16, the gland 12 and the pull rod 13; the water jacket 10 is fixedly connected to the center of the outer side of the kettle cover 7 through a second screw 17, a first pipe connector 20 and a second pipe connector 21 are mounted on the water jacket 10, the first movable sealing ring 9 is cooled through a circulating medium (such as water, cooling liquid, anti-freezing liquid and the like), the water jacket 10 and a boss on the kettle cover 7 axially position the first movable sealing ring 9, and the water jacket 10 and a boss on the pressure ring 16 axially position a third movable sealing ring 15; the pressure ring 16 is connected with the water jacket 10 through a third screw 11, and a third dynamic sealing ring 15 is arranged between the pressure ring and the water jacket; the gland 12 is in threaded connection with the pressure ring 16, a second dynamic sealing ring 14 is installed between the gland 12 and the pressure ring 16, and the second dynamic sealing ring 14 is axially positioned through a boss on the pressure ring 16 in the threaded connection between the gland 12 and the pressure ring 16; the dynamic seal ring I9, the dynamic seal ring II 14 and the dynamic seal ring III 15 are C-shaped or Y-shaped dynamic seal rings, openings of the installation direction face to one side with pressure, the dynamic seal ring II 14 and the dynamic seal ring III 15 are installed in a mirror image mode, a combined structure of the three dynamic seal rings is adopted, and the axial hole, the radial hole and the water jacket 10 of the pull rod 3 are ingeniously designed, so that the pressure on two sides of the dynamic seal ring I9 and the temperature of the dynamic seal ring I9, the dynamic seal ring II 14 and the dynamic seal ring III 15 can be effectively reduced, the service life and the reliability of sealing are greatly improved, the pull rod 13 axially displaces under the action of the dynamic seal structures of the dynamic seal ring I9, the dynamic seal ring II 14 and the dynamic seal ring III 15, and high-temperature and high-.
Three sample clamp rods 5 are installed on the kettle cover 7 through threaded connection, the sample clamp rods 5 are connected with the sample clamp base plate 4 through screws four 3, the pull rod 13 and the sample clamp base plate 4 are respectively connected with a sample 20A through a plate-shaped sample connector II 19A and a plate-shaped sample connector I19, and the sample 20A can be subjected to tensile test in the high-temperature and high-pressure environment inside the kettle body 2.
Claims (4)
1. The utility model provides a cauldron body of high temperature resistant, high pressure resistant gas dynamic seal structure which characterized in that: the kettle body (2) is connected with a kettle cover (7) through a first screw (8), a high-temperature resistant hollow metal O-shaped ring (6) is arranged between the kettle body and the kettle cover, a pull rod (13) capable of moving axially is arranged in the center of the kettle cover (7), a first movable sealing ring (9) is arranged between the kettle cover (7) and the pull rod (13), a water jacket (10) is fixedly connected to the center of the outer side of the kettle cover (7) through a second screw (17), a pressing ring (16) is connected with the water jacket (10) through a third screw (11), a third movable sealing ring (15) is arranged between the pressing ring and the pressing ring (16), and a second movable sealing ring (14) is arranged between the pressing ring and the; the mounting direction opening of the first movable sealing ring (9), the second movable sealing ring (14) and the third movable sealing ring (15) faces to one side with pressure, the second movable sealing ring (14) and the third movable sealing ring (15) are mounted in a mirror image mode, and the pull rod (13) axially displaces under the dynamic sealing action of the first movable sealing ring (9), the second movable sealing ring (14) and the third movable sealing ring (15), so that high-temperature and high-pressure gas in the kettle body (2) cannot leak.
2. The kettle body of the high temperature and high pressure resistant gas dynamic sealing structure according to claim 1, wherein: three sample anchor clamps pole (5) are installed through threaded connection on kettle cover (7), and sample anchor clamps pole (5) are connected through four (3) screws with sample anchor clamps bottom plate (4), and pull rod (13), sample anchor clamps bottom plate (4) are connected with sample (20A) through two (19A) of plate-like sample joint, plate-like sample joint (19) respectively, and sample (20A) carry out tensile test under the inside high temperature of the cauldron body (2) and high-pressure environment.
3. The kettle body of the high temperature and high pressure resistant gas dynamic sealing structure according to claim 1, wherein: install pipe connector (20) and pipe connector two (21) on water jacket (10), cool down through the circulation medium to movable seal circle (9), boss on water jacket (10) and kettle cover (7) carries out axial positioning to movable seal circle (9), boss on water jacket (10) and clamping ring (16) carries out axial positioning to movable seal circle three (15), and threaded connection between gland (12) and clamping ring (16) carries out axial positioning to movable seal circle two (14) through the boss on clamping ring (16).
4. The kettle body of the high temperature and high pressure resistant gas dynamic sealing structure according to claim 1, wherein: the center of the pull rod (13) is provided with an axial hole for ventilation and a radial hole communicated with the axial hole, and the pressure in the kettle body (2) is introduced into a gap among the pressure ring (16), the gland (12) and the pull rod (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010399891.8A CN112303233A (en) | 2020-05-13 | 2020-05-13 | High temperature resistant, resistant high pressure gas moves cauldron body of seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010399891.8A CN112303233A (en) | 2020-05-13 | 2020-05-13 | High temperature resistant, resistant high pressure gas moves cauldron body of seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112303233A true CN112303233A (en) | 2021-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010399891.8A Pending CN112303233A (en) | 2020-05-13 | 2020-05-13 | High temperature resistant, resistant high pressure gas moves cauldron body of seal structure |
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| CN (1) | CN112303233A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112691A (en) * | 2021-12-04 | 2022-03-01 | 上海百若试验仪器有限公司 | Material tensile testing machine capable of simulating fluid environment |
| CN115541452A (en) * | 2022-09-19 | 2022-12-30 | 北京科技大学 | Hydrogen permeation experimental device and method for non-metal pipe under gas-phase hydrogen environment |
-
2020
- 2020-05-13 CN CN202010399891.8A patent/CN112303233A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112691A (en) * | 2021-12-04 | 2022-03-01 | 上海百若试验仪器有限公司 | Material tensile testing machine capable of simulating fluid environment |
| CN115541452A (en) * | 2022-09-19 | 2022-12-30 | 北京科技大学 | Hydrogen permeation experimental device and method for non-metal pipe under gas-phase hydrogen environment |
| CN115541452B (en) * | 2022-09-19 | 2024-05-10 | 北京科技大学 | Hydrogen permeation experimental device and experimental method for nonmetallic tubing in gas-phase hydrogen environment |
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