CN112610693B - Method for sealing ultrahigh pressure test vessel - Google Patents
Method for sealing ultrahigh pressure test vessel Download PDFInfo
- Publication number
- CN112610693B CN112610693B CN202011435791.2A CN202011435791A CN112610693B CN 112610693 B CN112610693 B CN 112610693B CN 202011435791 A CN202011435791 A CN 202011435791A CN 112610693 B CN112610693 B CN 112610693B
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- Prior art keywords
- sealing
- ring
- fan
- threaded
- sealing head
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Classifications
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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
- F16J13/00—Covers or similar closure members for pressure vessels in general
- F16J13/02—Detachable closure members; Means for tightening closures
- F16J13/12—Detachable closure members; Means for tightening closures attached by wedging action by means of screw-thread, interrupted screw-thread, bayonet closure, or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
- B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
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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
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/061—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with positioning means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention relates to a method for sealing an ultrahigh pressure test container, which is characterized in that a cylinder body of the high pressure test container is vertically fixed, a sealing surface of a sealing head is arranged in an inner hole of the cylinder body of the high pressure test container, a lifting ring screw is screwed in a screw hole at the upper end, a threaded pressure ring is rotated by a wrench, and the sealing is stopped when a gap between the lower end surface of a sector groove of the threaded pressure ring and the upper end surface of a sector tooth of the sealing head is 4-5 mm. The threaded compression ring is rotated reversely, and the fan-shaped teeth of the sealing head are ensured to be consistent with the fan-shaped grooves of the threaded compression ring in position; lifting the lifting ring screw, pulling out the sealing head and installing the O-shaped sealing ring into the annular sealing groove; and pressing the sealing head into the inner hole of the cylinder body of the high-pressure test container until the gap between the lower end surface of the fan-shaped groove and the upper end surface of the fan-shaped tooth of the sealing head is 3-4mm. And (3) positively rotating the threaded pressing ring to enable the fan-shaped teeth of the sealing head and the tooth grooves of the threaded pressing ring to deviate by 30 degrees, and finishing sealing. The invention adopts an internal and external double sealing mode for the ultrahigh pressure test container, and has the advantages of convenient disassembly, high installation efficiency, good sealing performance and good repeatability.
Description
Technical Field
The invention belongs to the field of manufacturing of ultrahigh pressure vessels, and particularly relates to a method for sealing an ultrahigh pressure test vessel.
Background
The sealing of pressure vessel compresses tightly mainly to adopt the screw thread clamping ring to realize usually, processes the internal thread in the container barrel hole promptly, and screw thread clamping ring outer cylindrical surface processes into the external screw thread, in with screw thread clamping ring screw in container barrel hole, realizes compressing tightly sealed first device through threaded connection. This solution is practical for small pressure vessels, but for ultra-high pressure test vessels it is necessary to frequently disassemble and place test elements. By adopting the method, the thread surface is easy to damage and wear due to frequent disassembly, so that the service life of the ultrahigh pressure container is further influenced, and meanwhile, the threaded compression ring needs to be integrally disassembled and then reinstalled, so that the installation efficiency is low.
Disclosure of Invention
The invention aims to provide a method for sealing an ultrahigh pressure test container, which is convenient to disassemble, high in mounting efficiency, good in sealing performance and good in repeated use effect.
The purpose of the invention is realized by the following steps: the method for sealing the ultrahigh pressure test container adopts an internal and external dual sealing mode of a threaded pressure ring for the outer wall of a sealing head for the inner wall of a cylinder body of the ultrahigh pressure test container, and comprises the following specific operation steps:
vertically installing and fixing the high-pressure test container cylinder, installing the sealing head with the annular sealing groove sealing surface into an inner hole of the high-pressure test container cylinder, and screwing the lifting ring screw into a screw hole at the upper end; connecting the threaded compression ring with the outer wall of the cylinder body through threads; inserting a spanner bar into the jack of the outer cylindrical surface of the threaded compression ring, rotating the threaded compression ring in the forward direction by using a spanner until the gap between the lower end surface of the sector groove of the threaded compression ring and the upper end surface of the sector tooth of the sealing head is 4-5mm, and stopping rotating; reversely rotating the threaded compression ring by using a wrench to ensure that the positions of the sealing head sector teeth are consistent with those of the threaded compression ring sector grooves; the gaps between the sector teeth of the sealing head and the sector grooves of the threaded pressure ring are uniform; and lifting the lifting eye screw, and slowly pulling out the sealing head from the high-pressure test container barrel. The O-shaped sealing ring is arranged in an annular sealing groove of the sealing head;
the sealing head sector tooth and the thread pressing ring sector groove are aligned, then the sealing head is slowly pressed into an inner hole of a cylinder body of the high-pressure test container until a gap between the lower end face of the thread pressing ring sector groove and the upper end face of the sealing head sector tooth is 3-4mm, the thread pressing ring is rotated forwards by a wrench, the sealing head sector tooth and the thread pressing ring tooth groove are deviated by 30 degrees, and then the inner and outer double sealing is finished.
The invention adopts an internal and external double sealing mode for the ultrahigh pressure test container barrel, and has the advantages of convenient disassembly, high installation efficiency, good sealing property and good repeated use effect.
Drawings
FIG. 1 is a view showing a state in which a clamping mechanism of the device of the present invention locks a coupling,
figure 2 is a front view of the sealing head structure,
figure 3 is a top view of the sealing head structure,
figure 4 is a front view of a threaded pressure ring construction,
figure 5 is a top view of the threaded pressure ring structure,
FIG. 6 is a state diagram of the sealing head and the threaded compression ring before being mounted,
FIG. 7 is a state view of the seal head and threaded pressure ring in place.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, 2 and 3, the upper part of a sealing head 3 is a cylindrical surface 3-4, and the center of the upper end surface is provided with a screw hole 3-5 screwed in a lifting ring screw 5; 6 fan-shaped teeth 3-3 are uniformly distributed in the middle, a cylindrical sealing surface 3-1 is arranged at the lower part, and a rectangular annular groove 3-2 for installing an O-shaped sealing ring 4 is arranged on the periphery of the sealing surface. The middle part of the sealing head is provided with 3-3 fan-shaped teeth, and the gap between the fan-shaped teeth and the tooth socket at the middle part of the sealing head is 3-4mm.
Referring to fig. 4 and 5, 6 fan-shaped tooth sockets 2-1 are uniformly distributed at the upper part of the threaded compression ring 2, a cylindrical hole 2-3 is formed in the middle of the threaded compression ring, and a sawtooth-shaped internal thread 2-2 connected with the external thread of the high-voltage test container barrel is formed at the lower part of the threaded compression ring. According to the invention, the outer circle of the high-pressure test container barrel is processed into the external thread, the inner hole cylindrical surface of the threaded compression ring is processed into the internal thread, the threaded compression ring is tightly connected with the high-pressure test container barrel through the internal thread and the external thread, and the sealing property is good. The diameter of a circle with the arc surface 2-4 outside the fan-shaped tooth socket is 5-6mm larger than the diameter of the cylindrical surface 3-4 on the upper part of the sealing head 3; the diameter of the cylindrical hole is 2-3 mm larger than the diameter of the excircle 3-3-1 of the fan-shaped tooth of the sealing head 3 by 5-6mm. The fan-shaped tooth socket 2-1 of the threaded compression ring 2 is 8-10mm wider than the fan-shaped tooth 3-3 of the sealing head 3.
The invention adopts a sealing head to seal the inner wall of a cylinder body of an ultrahigh pressure test container, and adopts an internal and external double sealing mode of a threaded pressure ring for the outer wall, and the specific operation steps are as follows:
the high-pressure test container barrel 1 is vertically fixed, the sealing surface 3-1 with the annular sealing groove of the sealing head 3 is arranged in an inner hole 1-1 of the high-pressure test container barrel, and the lifting ring screw 5 is screwed into the screw hole 3-5 at the upper end. And the threaded compression ring 2O is in threaded connection with the outer wall of the cylinder 1. Inserting a spanner bar into the jack 2-5 of the outer cylindrical surface of the threaded compression ring, rotating the threaded compression ring 2 in the forward direction by using a spanner, detecting a gap between the lower end surface of the fan-shaped groove of the threaded compression ring 2 and the upper end surface of the fan-shaped tooth of the sealing head 3 from the tooth socket hole at the upper part of the threaded compression ring 2 by using a feeler gauge (a standard thickness sample wafer), and stopping rotating when the gap between the lower end surface of the fan-shaped groove of the threaded compression ring 2 and the upper end surface of the fan-shaped tooth of the sealing head 3 is measured to be 4-5 mm.
And (3) reversely rotating the threaded compression ring 2 by using a wrench rod, and observing the positions of the fan-shaped teeth 3-3 of the sealing head and the fan-shaped grooves 2-1 of the threaded compression ring 2 from the upper end surface of the threaded compression ring 2 to ensure that the positions of the fan-shaped teeth 3-3 of the sealing head and the fan-shaped grooves 2-1 of the threaded compression ring are consistent (see figure 6). And the gap between the sector teeth 3-3 of the sealing head and the sector grooves 2-1 of the threaded compression ring is uniform, the lifting bolt 5 is lifted, and the sealing head 3 is slowly pulled out of the high-pressure test container barrel 1. The O-ring 4 is installed in two annular seal grooves 3-2 of the seal head 3 (see FIGS. 1 and 2).
Aligning the positions of the fan-shaped teeth 3-3 of the sealing head 3 and the fan-shaped grooves 2-1 of the threaded pressure ring 2, slowly pressing the sealing head 3 into an inner hole of the high-pressure test container barrel 1 by using a tool from the upper part, detecting a gap between the lower end face of the fan-shaped groove of the threaded pressure ring 2 and the upper end face of the fan-shaped teeth of the sealing head 3 from a tooth socket hole on the upper part of the threaded pressure ring 2 by using a feeler gauge (a standard thickness sample), measuring until the gap between the lower end face of the fan-shaped groove of the threaded pressure ring 2 and the upper end face of the fan-shaped teeth of the sealing head 3 is 3-4mm, forwardly rotating the threaded pressure ring 2 by using a wrench to enable the fan-shaped teeth 3-3 of the sealing head 3 and the tooth sockets 2-1 of the threaded pressure ring to deviate by 30 degrees, ensuring that the positions of the fan-shaped teeth of the sealing head and the tooth sockets of the threaded pressure ring are uniformly distributed to form staggered teeth, achieving the effect of pressing the sealing head (see a figure 7), and finishing the internal and external double sealing.
When dismantling sealed head, only need with the rotatory small angle of screw thread clamping ring direction, guarantee that screw thread clamping ring tooth's socket aligns with sealed first fan-shaped tooth position, utilize eyebolt to extract sealed head from high-pressure test vessel barrel hole from upper portion, need not pull down screw thread clamping ring is whole, practiced thrift the dismouting time, avoid the dismouting repeatedly simultaneously, cause the wearing and tearing of screw thread profile of tooth, influence the life of container.
The invention adopts an internal and external double sealing mode for the ultrahigh pressure test container barrel, and has the advantages of convenient disassembly, high installation efficiency, good sealing property and good repeated use effect.
Claims (6)
1. A method of sealing a pressure test vessel, comprising: the inner and outer dual sealing mode of the threaded compression ring for the outer wall of the sealing head for the inner wall of the cylinder body of the pressure test container is adopted in a sealing mode, and the specific operation steps are as follows:
vertically fixing the pressure test container cylinder, installing the sealing head with an annular sealing groove sealing surface into an inner hole of the pressure test container cylinder, screwing a lifting ring screw into a screw hole at the upper end, and connecting a threaded pressure ring with the outer wall of the cylinder in a threaded manner; inserting a wrench rod into the jack of the outer cylindrical surface of the threaded compression ring, rotating the threaded compression ring in the forward direction by using a wrench until a gap between the lower end surface of the sector groove of the threaded compression ring and the upper end surface of the sector tooth of the sealing head is 4-5mm, and stopping rotating; reversely rotating the threaded compression ring by using a wrench to ensure that the positions of the sealing head sector teeth are consistent with those of the threaded compression ring sector grooves; the gaps between the sector teeth of the sealing head and the sector grooves of the threaded pressure ring are uniform; lifting the lifting eye screw, and slowly pulling out the sealing head from the pressure test container barrel; the O-shaped sealing ring is arranged in an annular sealing groove of the sealing head;
and aligning the positions of the sealing head fan-shaped teeth and the threaded press ring fan-shaped grooves, slowly pressing the sealing head into the inner hole of the pressure test container barrel until the gap between the lower end face of the threaded press ring fan-shaped groove and the upper end face of the sealing head fan-shaped teeth is 3-4mm, positively rotating the threaded press ring by using a wrench to enable the sealing head fan-shaped teeth and the tooth grooves of the threaded press ring to deviate by 30 degrees, and finishing the internal and external dual sealing.
2. The method of sealing a pressure test vessel of claim 1, wherein: the upper part of the sealing head is a cylindrical surface, and the center of the upper end surface is provided with a screw hole screwed into a lifting ring screw; 6 fan-shaped teeth are uniformly distributed in the middle, the lower part is a cylindrical sealing surface, and a rectangular annular groove for mounting an O-shaped sealing ring is formed in the periphery of the sealing surface; the gap between the fan-shaped teeth in the middle of the sealing head and the tooth socket is 3-4mm.
3. A method of sealing a pressure test vessel as claimed in claim 1, wherein: 6 fan-shaped tooth's sockets of equipartition on screw clamping ring upper portion, there is the cylinder hole in the middle part, and the lower part has the zigzag internal thread of being connected with pressure test container barrel external screw thread.
4. A method of sealing a pressure test vessel as claimed in claim 2 or 3, wherein: the diameter of a circle where the arc surface outside the fan-shaped tooth socket is located is 5-6mm larger than the diameter of the cylindrical surface at the upper part of the sealing head; the diameter of the cylindrical hole is 5-6mm larger than the diameter of the outer circle of the fan-shaped tooth of the sealing head; the fan-shaped tooth space of the threaded compression ring is 8-10mm wider than the fan-shaped tooth space of the sealing head.
5. The method of sealing a pressure test vessel of claim 1, wherein: and (3) rotating the threaded compression ring by using a wrench, detecting a gap between the lower end face of the fan-shaped groove of the threaded compression ring and the upper end face of the fan-shaped tooth of the sealing head from the tooth groove hole at the upper part of the threaded compression ring by using a feeler gauge, and measuring.
6. A method of sealing a pressure test vessel as claimed in claim 1, wherein: and detecting a gap between the lower end face of the sector groove of the threaded compression ring and the upper end face of the sector tooth of the sealing head from the tooth groove hole at the upper part of the threaded compression ring by using a feeler gauge, and measuring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011435791.2A CN112610693B (en) | 2020-12-07 | 2020-12-07 | Method for sealing ultrahigh pressure test vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011435791.2A CN112610693B (en) | 2020-12-07 | 2020-12-07 | Method for sealing ultrahigh pressure test vessel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112610693A CN112610693A (en) | 2021-04-06 |
| CN112610693B true CN112610693B (en) | 2022-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011435791.2A Active CN112610693B (en) | 2020-12-07 | 2020-12-07 | Method for sealing ultrahigh pressure test vessel |
Country Status (1)
| Country | Link |
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| CN (1) | CN112610693B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201521717U (en) * | 2009-07-28 | 2010-07-07 | 中冶南方工程技术有限公司 | Cable lead-in wire seal device under vacuum positive pressure and negative pressure |
| CN106660670A (en) * | 2014-07-25 | 2017-05-10 | 螺纹封有限公司 | Container and closure and manufacture thereof |
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| US3091372A (en) * | 1960-10-27 | 1963-05-28 | Root Lowell Mfg Co | Compression sprayer |
| JPH06159512A (en) * | 1992-11-18 | 1994-06-07 | K Ii Corp:Kk | Sealing jig for pipe opening end |
| JPH06241320A (en) * | 1993-02-10 | 1994-08-30 | Hitachi Ltd | Method of sealing opening end part of cylindrical pipe |
| JPH0840450A (en) * | 1994-07-27 | 1996-02-13 | Mitsubishi Heavy Ind Ltd | Cover opening/closing device |
| US7243685B2 (en) * | 2004-05-05 | 2007-07-17 | Robbins & Myers Energy Systems, L.P. | High pressure closure |
| CN2791436Y (en) * | 2005-03-22 | 2006-06-28 | 杨水平 | Pipe-end sealing cock |
| CN1833809A (en) * | 2006-04-10 | 2006-09-20 | 中国海洋石油总公司 | Fast open locking gear of high pressure dry welding experimental cabin |
| CN101793322B (en) * | 2010-02-10 | 2015-02-18 | 中国人民解放军63908部队 | Self-closing sealing choke plug |
| FR2973003B1 (en) * | 2011-03-21 | 2013-03-29 | Jpb Systeme | SELF-ACTIVABLE LATCH FASTENING DEVICE |
| CN105857887B (en) * | 2016-06-02 | 2018-07-10 | 曹凡 | A kind of container lid |
| CN106402383B (en) * | 2016-11-18 | 2018-06-08 | 安徽中研理工仪器设备有限公司 | A kind of Seals for High Pressure Containers method |
| CN208474767U (en) * | 2018-07-20 | 2019-02-05 | 浙江雄鹏机械股份有限公司 | A kind of plug |
| CN211574511U (en) * | 2019-12-30 | 2020-09-25 | 上海威可特汽车热交换器制造有限公司 | Sealing plug cover |
-
2020
- 2020-12-07 CN CN202011435791.2A patent/CN112610693B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201521717U (en) * | 2009-07-28 | 2010-07-07 | 中冶南方工程技术有限公司 | Cable lead-in wire seal device under vacuum positive pressure and negative pressure |
| CN106660670A (en) * | 2014-07-25 | 2017-05-10 | 螺纹封有限公司 | Container and closure and manufacture thereof |
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| Publication number | Publication date |
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| CN112610693A (en) | 2021-04-06 |
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