CN111337199A - Pressure vessel gas tightness detecting system - Google Patents
Pressure vessel gas tightness detecting system Download PDFInfo
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- CN111337199A CN111337199A CN202010329159.3A CN202010329159A CN111337199A CN 111337199 A CN111337199 A CN 111337199A CN 202010329159 A CN202010329159 A CN 202010329159A CN 111337199 A CN111337199 A CN 111337199A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
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Abstract
The invention relates to a pressure vessel airtightness detection system, which comprises a test platform, a pressure vessel body, a sealing device and a gas transmission device, wherein the pressure vessel body is placed on the test platform, the gas transmission device is arranged on the test platform, and the sealing device is connected to the upper end of the pressure vessel body; b, when the existing pressure container air tightness is detected, the structure of a clamping tool at the interface of the pressure container is complex, the use and the maintenance are inconvenient, the pressure container air tightness detection device can be suitable for detecting large-batch pressure containers, the detection effect can be ensured, and the labor amount of workers is reduced.
Description
Technical Field
The invention relates to the technical field of production and manufacturing of pressure containers, in particular to a pressure container air tightness detection system.
Background
The pressure container is a closed container capable of bearing pressure, has extremely wide application, has important status and function in many departments such as industry, civil use, military industry and the like and many fields of scientific research, has certain potential safety hazard because the pressure container is generally used under relatively high pressure, and is an important ring for detecting air leakage when the pressure container is produced, particularly for detecting the welding seam of the pressure container.
However, the following problems exist when the existing pressure container is used for air tightness detection, a, most of the methods adopted at the present stage are to introduce gas into the pressure container for detection, but the sealing treatment at the interface is often improper, the leaked gas can influence the judgment of detection personnel, the condition of inaccurate detection result is often caused, and the use of the pressure container is influenced; b, when current pressure vessel gas tightness detected, the clamping tool structure at pressure vessel kneck was complicated, and it is all inconvenient to use and maintain, has reduced the efficiency that detects, can be applicable to large batch pressure vessel's detection, when can guaranteeing the detection effect, convenient operation, with low costs has reduced staff's the amount of labour.
Disclosure of Invention
In order to solve the problems, the pressure container air tightness detection system comprises a test platform, a pressure container body, a sealing device and a gas transmission device, wherein the pressure container body is placed on the test platform, the gas transmission device is arranged on the test platform, and the sealing device is connected to the upper end of the pressure container body.
The gas transmission device comprises an air pump, an air outlet pipe, a hollow circular pipe, a sealing ring, a return spring rod, a connecting circular ring, a sliding plate, a jacking circular ring and a sealing air bag, wherein the air pump is arranged on the test platform, the air outlet pipe is arranged at the output end of the air pump, the hollow circular ring is sleeved on the air outlet pipe, circular ring grooves are symmetrically formed in the hollow circular ring along the circumferential direction of the hollow circular ring, straight grooves are uniformly formed in the hollow circular ring along the circumferential direction at the outer end of the circular ring groove, the sealing ring is arranged on the inner wall of the circular ring groove at the inner end of the straight groove along the circumferential direction of the straight groove, the sliding plate is arranged in the straight groove in a sliding fit manner, the jacking circular ring is arranged on the sliding plate at the inner part of the hollow circular pipe, the connecting circular ring is arranged on the sliding plate at the outer part, through the removal of sealed gasbag, can comparatively audio-visual observation the gas tightness of pressure vessel.
The sealing device comprises a sealing pipe, a connecting round rod, a locking semicircular ring, an unlocking semicircular ring, a locking plate, a sliding block, a positioning rod, an ejector block, a rotating rod, an ejector rod, a locking rod, a U-shaped elastic sheet and a rubber plate, wherein the sealing pipe is sleeved at an air inlet at the upper end of the pressure container body, through holes are respectively formed in the locking semicircular ring and the unlocking semicircular ring, the connecting round rod penetrates through the through holes to connect the locking semicircular ring and the unlocking semicircular ring, the locking plate is installed on the unlocking semicircular ring, a locking groove is formed in the locking plate, a sliding groove is formed in the inner wall of the inner end of the locking groove, a sliding hole is formed in the front end of the locking plate, a round hole is formed in the rear side of the upper end of the locking plate, the sliding block is installed in the sliding groove in a sliding fit manner, the positioning rod is installed in the sliding hole in a sliding fit manner, the utility model discloses a pressure vessel's gas outlet, including locating lever and check lock pole, the check lock pole is including the locating lever, the check lock pole is connected with the check lock pole, the check.
As a preferred technical scheme of the invention, the outer end of the sealing ring is provided with an oblique arc ring notch along the circumferential direction, the inner end of the jacking circular ring is provided with an annular oblique arc opening along the circumferential direction, and the oblique arc ring notch on the sealing ring and the annular oblique arc opening on the jacking circular ring are matched with each other for use, so that the jacking circular ring can simply jack up the sealing ring and loosen the sealing of the sealing ring on the pressure container and the air outlet pipe.
As a preferred technical scheme of the invention, after the sealing airbag is inflated, the two ends are spherical surfaces, the middle part is a cylindrical structure, the radiuses of the spherical surfaces at the two ends and the radius of the cylindrical structure are the same, and the cylindrical structure and the inner wall of the pressure container body are mutually abutted and matched for use, so that the inner wall of the pressure container can be better sealed, and a detection result is accurate.
As a preferred technical scheme of the invention, a protruding structure is arranged on one side, abutting against the positioning rod, of the U-shaped elastic piece, a groove is arranged on the abutting part, abutting against the U-shaped elastic piece, of the positioning rod, and the protruding structure of the U-shaped elastic piece and the groove of the positioning rod are matched with each other for use, so that the U-shaped elastic piece can better abut against the positioning rod.
As a preferred technical scheme of the invention, the locking rod is provided with the locking teeth, the locking semicircular ring is uniformly provided with the clamping teeth, and the clamping teeth and the locking teeth are matched with each other for use, so that the locking rod can better lock the locking semicircular ring.
The locking rod and the positioning rod are matched with the ejector rod to use, so that the ejector rod can better jack the positioning rod, the locking between the ejector blocks is removed, the ejector rod can better drive the locking rod to rotate, and the locking of the locking rod on the locking semicircular ring is removed.
The invention has the beneficial effects that:
1. the invention can solve the following problems existing in the existing pressure vessel for air tightness detection, a, the method adopted at the present stage mostly introduces gas into the pressure vessel for detection, but the method often has improper sealing treatment at the interface, the leaked gas can influence the judgment of detection personnel, often causes the condition of inaccurate detection result, and influences the use of the pressure vessel; b, when current pressure vessel gas tightness detected, the clamping tool structure at pressure vessel kneck was complicated, and it is all inconvenient to use and maintain, has reduced the efficiency that detects, can be applicable to large batch pressure vessel's detection, when can guaranteeing the detection effect, convenient operation, with low costs has reduced staff's the amount of labour.
2. The air delivery device designed by the invention ensures that the hollow circular tube can be tightly connected with the pressure container and the air outlet tube through the mutual matching action among the air pump, the air outlet tube, the hollow circular tube, the sliding plate, the jacking circular ring and the sealing air bag, so that the stability and the air tightness of the air pump during air inflation detection are ensured, the connection between the pressure container and the air outlet tube can be conveniently released between the sealing ring and the jacking circular ring, the operation is convenient, the sealing effect is good, the phenomenon of air leakage when the air outlet tube is connected with the pressure container in the detection process is avoided, the accuracy of the detection result is improved, and the air tightness of the pressure container can be simply detected through the movement of the sealing air bag in the pressure container.
3. The sealing device designed by the invention can seal the gas outlet on the pressure container by mutually matching the sealing pipe, the connecting round rod, the locking semicircular ring, the unlocking semicircular ring, the locking plate, the sliding block, the positioning rod, the ejector block, the rotating rod, the ejector rod, the locking rod, the U-shaped elastic sheet and the rubber plate, so that the gas outlet on the pressure container can be prevented from generating gas leakage in the test process, the sealing pipe can be stably sleeved on the gas outlet on the pressure container and cannot be blown out by strong gas by mutually matching the locking semicircular ring, the unlocking semicircular ring and the locking rod, the sealing device is convenient to disassemble after the detection is finished, the detection efficiency is improved, the labor capacity of workers is reduced, and the sealing device can be suitable for the detection of large-batch pressure containers.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1 of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention;
FIG. 4 is an enlarged view of the invention taken along line K of FIG. 2;
FIG. 5 is a schematic view of a partial structure of the closure of the present invention;
fig. 6 is a partial structural schematic view of the gas delivery device of the present invention.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 to 6, a pressure vessel airtightness detection system comprises a test platform 1, a pressure vessel body 2, a sealing device 3 and a gas transmission device 4, wherein the pressure vessel body 2 is placed on the test platform 1, the gas transmission device 4 is arranged on the test platform 1, and the sealing device 3 is connected to the upper end of the pressure vessel body 2.
The sealing device 3 comprises a sealing pipe 3a, a connecting round rod 3b, a locking semicircular ring 3c, an unlocking semicircular ring 3d, a locking plate 3e, a sliding block 3f, a positioning rod 3g, a top block 3h, a rotating rod 3i, a top rod 3j, a locking rod 3k, a U-shaped elastic sheet 3l and a rubber plate 3m, wherein the sealing pipe 3a is sleeved at an air inlet at the upper end of the pressure container body 2, through holes are respectively formed on the locking semicircular ring 3c and the unlocking semicircular ring 3d, the connecting round rod 3b penetrates through the through holes to connect the locking semicircular ring 3c and the unlocking semicircular ring 3d, the locking plate 3e is arranged on the unlocking semicircular ring 3d, a locking groove is formed on the locking plate 3e, a sliding groove is formed on the inner wall at the inner end of the locking groove, a sliding hole is formed at the front end of the locking plate 3e, a round hole is formed at the rear end of the locking plate 3e, install locating lever 3g on slider 3f, the locating lever 3g front end passes the slide opening and installs in the slide opening through sliding fit's mode, install check lock lever 3k through the round pin axle between the inner wall of both ends about the lock slot front side, the check lock lever 3k rear end supports and leans on the lock slot inner wall, all install kicking block 3h on locating lever 3g and the check lock lever 3k rear side relative position, use of mutually supporting between kicking block 3h, install bull stick 3i through the bearing in the round hole, bull stick 3j is installed to bull stick 3i lower extreme position in the lock slot, install U type shell fragment 3l through the round pin axle between the inner wall at both ends about the clearance department that lies in the lock slot between locating lever 3g and the check lock lever 3k, 3l one end of U type shell fragment supports tightly at locating lever 3g, the 3l other end of U type shell fragment supports tightly at check lock lever 3k, install rubber slab 3m on lock semicircle ring 3c and the.
U type shell fragment 3l on lie in that 3g of locating lever support tight one side and be provided with protruding structure, lie in 3l of U type shell fragment on the locating lever and support tight department and be provided with the recess, mutually support between 3 l's of U type shell fragment protruding structure and the locating lever 3g recess and use.
The locking rod 3k is provided with locking teeth, the locking semicircular ring 3c is evenly provided with clamping teeth, and the clamping teeth and the locking teeth are matched with each other for use.
The locking rod 3k and the positioning rod 3g are matched with the ejector rod 3j for use.
During specific work, the sealing pipe 3a is manually sleeved at the air inlets at the upper end and the right end of the pressure container body 2, the locking semicircular ring 3c and the unlocking semicircular ring 3d are wrapped on the outer wall of the sealing pipe 3a, and the locking semicircular ring 3c and the unlocking semicircular ring 3d are rotated towards the middle, so that the locking rod 3k and the locking semicircular ring 3c are locked with each other, and the air leakage phenomenon can not occur at the air inlet at the upper end of the pressure container body 2.
The gas transmission device 4 comprises a gas pump 41, a gas outlet pipe 42, a hollow circular pipe 43, a sealing ring 44, a return spring rod 45, a connecting circular ring 46, a sliding plate 47, a jacking circular ring 48 and a sealing airbag 49, the gas pump 41 is arranged on the test platform 1, the gas outlet pipe 42 is installed at the output end of the gas pump 41, the hollow circular ring is sleeved on the gas outlet pipe 42, circular ring grooves are symmetrically arranged on the hollow circular ring along the left and right sides of the hollow circular ring along the circumferential direction, straight grooves are uniformly arranged on the hollow circular ring along the circumferential direction at the outer end of the circular ring grooves, the sealing ring 44 is installed on the inner wall of the circular ring grooves at the inner end of the straight grooves along the circumferential direction, the sliding plate 47 is installed in a sliding fit manner, the jacking circular ring 48 is installed inside the hollow circular pipe 43 on the sliding plate 47, the connecting circular ring 46 is installed outside, the other end of the return spring rod 45 is connected to the inner wall of the outer end of the straight groove, and a sealing air bag 49 is arranged in the pressure container body 2.
The outer end of the sealing ring 44 is provided with an oblique arc ring incision along the circumferential direction, the inner end of the jacking ring 48 is provided with an annular oblique arc opening along the circumferential direction, and the oblique arc ring incision on the sealing ring 44 and the annular oblique arc opening on the jacking ring 48 are matched with each other for use.
After the sealed air bag 49 is inflated, the two ends of the sealed air bag are spherical surfaces, the middle of the sealed air bag is of a cylindrical structure, the spherical surfaces at the two ends of the sealed air bag are the same as the radius of the cylindrical structure, and the cylindrical structure and the inner wall of the pressure container body 2 are mutually abutted and matched for use.
Manually inserting the sealed air bag 49 into the pressure vessel body 2 from the left end of the pressure vessel body 2, filling the sealed air bag 49 with air by using the existing inflating machine, so that the sealed air bag 49 abuts against the inner wall of the pressure vessel body 2, sleeving the hollow circular tube 43 on the air inlet and outlet tube 42 at the left end of the pressure vessel body 2, pushing the connecting circular ring 46 to move towards the inner end, driving the sliding plate 47 to move towards the inner end by the connecting circular ring 46, driving the jacking circular ring 48 to move towards the inner end by the sliding plate 47 to jack up the sealing ring 44, returning the connecting circular ring 46 to the initial position under the resilience of the return spring rod 45, so that the sealing ring 44 abuts against the outer wall of the air inlet and outlet tubes 42 at the left end of the pressure vessel body 2, connecting the outlet tube 42 and the pressure vessel body 2, conveying air into the pressure vessel body 2 through the outlet tube 42 by the air pump 41, and observing the air leakage point, after the observation is completed, the air pump 41 stops operating.
The connecting ring 46 is manually pushed to move towards the inner end, the connecting ring 46 drives the sliding plate 47 to move towards the inner end, the sliding plate 47 drives the jacking ring 48 to move towards the inner end to jack up the sealing ring 44, the hollow circular tube 43 is taken down from the air inlet at the left end of the pressure container body 2, the rotating rod 3i of the sealing device 3 on the air inlet at the right end of the pressure container body 2 is manually rotated, the rotating rod 3i drives the ejector rod 3j to rotate, the ejector rod 3j drives the positioning rod 3g to slide towards the front end, the rotating rod 3i reversely rotates, the rotating rod 3i drives the locking rod 3k to rotate towards the inner end through the ejector rod 3j, so that the locking rod 3 releases the locking of the locking semicircular ring 3c, the locking semicircular ring 3c and the unlocking semicircular ring 3d to lock the sealing tube 3a, if the sealing air bag 49 slides to the right end, the air tightness of the pressure container body 2 is better, if the sealing, the pressure vessel body 2 is inferior in airtightness.
The sealing device 3 is manually sleeved at the air inlet at the left end of the pressure container body 2, the air conveying device 4 is connected to the air inlet at the right end of the pressure container body 2, the air pump 41 conveys air into the pressure container body 2 through the air outlet pipe 42, the air leakage point of the pressure container body 2 is observed, after the observation is completed, the air pump 41 stops working, the operation is repeated, the air tightness detection operation can be performed on the pressure container body 2, and after the detection is completed, the air in the sealed air bag 49 is discharged, and the sealed air bag 49 is taken out.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a pressure vessel gas tightness detecting system, includes test platform (1), pressure vessel body (2), closing device (3) and gas transmission device (4), its characterized in that: a pressure container body (2) is placed on the test platform (1), a gas transmission device (4) is arranged on the test platform (1), and a sealing device (3) is connected to the upper end of the pressure container body (2);
the gas transmission device (4) comprises a gas pump (41), a gas outlet pipe (42), a hollow circular pipe (43), a sealing ring (44), a return spring rod (45), a connecting circular ring (46), a sliding plate (47), a jacking circular ring (48) and a sealing air bag (49), the gas pump (41) is arranged on the test platform (1), the gas outlet pipe (42) is arranged at the output end of the gas pump (41), the hollow circular pipe (42) is sleeved with the hollow circular ring, circular grooves are symmetrically formed in the hollow circular ring along the circumferential direction of the hollow circular ring, straight grooves are uniformly formed in the hollow circular ring at the outer ends of the circular grooves along the circumferential direction of the hollow circular ring, the sealing ring (44) is arranged at the inner ends of the straight grooves on the inner wall of the circular grooves along the circumferential direction of the circular groove, the sliding plate (47) is arranged in the straight grooves in a sliding fit manner, the, a connecting circular ring (46) is arranged on the sliding plate (47) and positioned outside the hollow circular tube (43), one end of a return spring rod (45) is connected to the sliding plate (47), the other end of the return spring rod (45) is connected to the inner wall of the outer end of the straight groove, and a sealing air bag (49) is arranged in the pressure container body (2);
the sealing device (3) comprises a sealing pipe (3a), a connecting round rod (3b), a locking semicircular ring (3c), an unlocking semicircular ring (3d), a locking plate (3e), a sliding block (3f), a positioning rod (3g), a top block (3h), a rotating rod (3i), a top rod (3j), a locking rod (3k), a U-shaped elastic sheet (3l) and a rubber plate (3m), wherein the sealing pipe (3a) is sleeved at an air inlet at the upper end of the pressure container body (2), the locking semicircular ring (3c) and the unlocking semicircular ring (3d) are respectively provided with a through hole, the connecting round rod (3b) penetrates through the through hole to connect the locking semicircular ring (3c) and the unlocking semicircular ring (3d), the unlocking semicircular ring (3d) is provided with the locking plate (3e), the locking plate (3e) is provided with a locking groove, and the inner wall of the locking groove is provided with a sliding groove, the sliding hole has been seted up to locking plate (3e) front end, the round hole has been opened to locking plate (3e) upper end rear side, install slider (3f) through sliding fit's mode in the spout, install locating lever (3g) on slider (3f), locating lever (3g) front end passes the sliding hole and installs in the spout through sliding fit's mode, install check lock lever (3k) through the round pin axle between the upper and lower both ends inner wall of locking groove front side, check lock lever (3k) rear end supports and leans on the locking groove inner wall, all install kicking block (3h) on locating lever (3g) and check lock lever (3k) rear side relative position, mutually support the use between kicking block (3h), install bull stick (3i) through the bearing in the round hole, bull stick (3j) are installed to bull stick (3i) in the locking groove lower extreme, install U type shell fragment (3l) through the round pin axle between the locking groove position between the inner wall about the clearance department both ends between locating lever (3g) and check One end of the U-shaped elastic sheet (3l) is tightly connected with the positioning rod (3g), the other end of the U-shaped elastic sheet (3l) is tightly connected with the locking rod (3k), and the rubber plate (3m) is arranged on the inner wall of the locking semicircular ring (3c) and the unlocking semicircular ring (3 d).
2. The system for detecting the airtightness of a pressure vessel according to claim 1, wherein: the outer end of the sealing ring (44) is provided with an oblique arc ring incision along the circumferential direction, the inner end of the jacking ring (48) is provided with an annular oblique arc opening along the circumferential direction, and the oblique arc ring incision on the sealing ring (44) and the annular oblique arc opening on the jacking ring (48) are matched with each other for use.
3. The system for detecting the airtightness of a pressure vessel according to claim 1, wherein: after the sealed air bag (49) is inflated, the two ends of the sealed air bag are spherical surfaces, the middle of the sealed air bag is of a cylindrical structure, the spherical surfaces at the two ends of the sealed air bag are the same as the radius of the cylindrical structure, and the cylindrical structure and the inner wall of the pressure container body (2) are mutually abutted and matched for use.
4. The system for detecting the airtightness of a pressure vessel according to claim 1, wherein: u type shell fragment (3l) on lie in that locating lever (3g) support tight one side and be provided with protruding structure, lie in U type shell fragment (3l) on locating lever (3g) and support tight department and be provided with the recess, mutually support between the protruding structure of U type shell fragment (3l) and locating lever (3g) recess and use.
5. The system for detecting the airtightness of a pressure vessel according to claim 1, wherein: the locking rod (3k) is provided with locking teeth, the locking semicircular ring (3c) is evenly provided with clamping teeth, and the clamping teeth and the locking teeth are matched with each other for use.
6. The system for detecting the airtightness of a pressure vessel according to claim 1, wherein: the locking rod (3k) and the positioning rod (3g) are matched with the ejector rod (3j) for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010329159.3A CN111337199A (en) | 2020-04-23 | 2020-04-23 | Pressure vessel gas tightness detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010329159.3A CN111337199A (en) | 2020-04-23 | 2020-04-23 | Pressure vessel gas tightness detecting system |
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| CN111337199A true CN111337199A (en) | 2020-06-26 |
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| CN202010329159.3A Withdrawn CN111337199A (en) | 2020-04-23 | 2020-04-23 | Pressure vessel gas tightness detecting system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112857678A (en) * | 2021-01-13 | 2021-05-28 | 北京航空航天大学 | High-pressure sealing gas tank for testing sealing performance and testing device |
| CN113049199A (en) * | 2021-02-27 | 2021-06-29 | 江西奕方农业科技有限公司 | Vacuum tank air tightness detection equipment |
| CN115178873A (en) * | 2022-09-09 | 2022-10-14 | 江苏欣力智能电子有限公司 | Laser welding device with high-safety joint for automobile manufacturing |
| CN116047205A (en) * | 2023-01-12 | 2023-05-02 | 海拓仪器(江苏)有限公司 | Sealed pressure container for high-pressure accelerated aging test |
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| 于巧玲: "浅谈压力容器设计中的常见问题及对策", 《中国设备工程》 * |
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| CN112857678A (en) * | 2021-01-13 | 2021-05-28 | 北京航空航天大学 | High-pressure sealing gas tank for testing sealing performance and testing device |
| CN112857678B (en) * | 2021-01-13 | 2022-03-22 | 北京航空航天大学 | High-pressure sealing gas tank for testing sealing performance and testing device |
| CN113049199A (en) * | 2021-02-27 | 2021-06-29 | 江西奕方农业科技有限公司 | Vacuum tank air tightness detection equipment |
| CN113049199B (en) * | 2021-02-27 | 2023-01-06 | 江西奕方农业科技有限公司 | Vacuum tank air tightness detection equipment |
| CN115178873A (en) * | 2022-09-09 | 2022-10-14 | 江苏欣力智能电子有限公司 | Laser welding device with high-safety joint for automobile manufacturing |
| CN116047205A (en) * | 2023-01-12 | 2023-05-02 | 海拓仪器(江苏)有限公司 | Sealed pressure container for high-pressure accelerated aging test |
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