CN102879156A - Sealing pressure test method for O-shaped seal rings and sealing device for O-shaped seal rings - Google Patents
Sealing pressure test method for O-shaped seal rings and sealing device for O-shaped seal rings Download PDFInfo
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- CN102879156A CN102879156A CN2012103454789A CN201210345478A CN102879156A CN 102879156 A CN102879156 A CN 102879156A CN 2012103454789 A CN2012103454789 A CN 2012103454789A CN 201210345478 A CN201210345478 A CN 201210345478A CN 102879156 A CN102879156 A CN 102879156A
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Abstract
The invention provides a sealing pressure test method for O-shaped seal rings and a sealing device for O-shaped seal rings. Two O-shaped ring grooves are arranged in a sealing surface on one side of a sealing bonding surface; an injection compressing ring groove communicated with the sealing bonding surface is parallelly arranged between the two O-shaped ring grooves; O-shaped seal rings are arranged in the O-shaped ring grooves; pressure is injected in the injection compressing ring grooves through pressurizing equipment, and pressure is maintained for a certain time, so that the sealing effect of the O-shaped seal rings on the two sides of the injection compressing ring grooves can be detected. According to the invention, the seal structure is changed, that is, one O-shaped seal ring is changed into two O-shaped seal rings, and the injection compressing ring groove is arranged between the two O-shaped seal rings, so that all that is needed is to slightly pressure the injection compressing ring groove regardless of a pressure vessel or a sealed cabin, furthermore, the operation is convenient, and the structure is simple.
Description
Technical field
The invention relates to a kind of sealing property detecting method and device of seal, relate in particular to a kind of sealing pressure-measuring method and packoff thereof of O-ring seals.
Background technology
High pressure vessel or pressurized capsule all should have strict requirement as the key equipment in the high-pressure process process to its material, design, manufacturing etc.Seal Design is one of key of high pressure vessel design, seal leakage or inefficacy, and the lighter makes the high pressure vessel cisco unity malfunction, loses high-voltage performance; Severe one can cause corrosion or destruction to pressure vessel, even causes any property loss and personnel's injury.O shape circle is known as " king of sealing ", and have lot of advantages: (1) sealing bit architecture is simple, compact dimensions, and easy installation and removal, weight is lighter; (2) can under static and various moving conditions, use; (3) have the self-tightening sealing effect, can guarantee sealing function with an O-ring seal, and the energy two way seal; (4) the friction of motion resistance is little; (5) can adapt to and remedy the manufacturing deficiency of certain sealing surface, without any need for special erecting tools; (6) bolt pretightening has been removed in high resilience; (7) standardization of size and groove, cost is low, and is easy to use.The most frequently used cross sectional shape is circular on the O shape rubber ring engineering.Its simple shape, easy to manufacture, with low cost.Along with the development of material technology, the O shape circle that the special elastomer material is made can be used in harsh environment and the more sealing of high pressure, and the application of O-ring seals will be more and more extensive also.
High pressure vessel or pressurized capsule all must detect its sealing property before coming into operation, and did not reveal to guarantee its seal.Traditional method be with high pressure vessel or pressurized capsule overall package well after, put into hyperbaric environment, take out behind the pressurize certain hour, check whether its sealing property intact.This method is complicated, operation inconvenience, wasting manpower and material resources.
Thus, the inventor relies on experience and the practice of being engaged in for many years relevant industries, proposes a kind of sealing pressure-measuring method and packoff thereof of O-ring seals, to overcome the defective of prior art.
Summary of the invention
The object of the present invention is to provide a kind of sealing pressure-measuring method and packoff thereof of simple in structure, easy to operate O-ring seals.
The object of the present invention is achieved like this, and a kind of sealing pressure-measuring method of O-ring seals arranges twice O ring recess at the wherein side seal face of sealed faying face, and the notes pressure ring groove with the sealed faying face conducting is set between twice O ring recess together abreast; In each O ring recess O-ring seals is set; By pressurized equipment injection pressure in the described notes pressure ring groove, and the pressurize certain hour, thus, detect the sealing effectiveness of the O-ring seals of annotating pressure ring groove both sides.
Purpose of the present invention can also realize like this, and a kind of sealing pressure tester of O-ring seals comprises airtight container body and the end cover that is fixedly installed on body open end; In the sealed faying face of body and end cover, be positioned on the side of end cover, be provided with the O ring recess that the twice interval arranges, between twice O ring recess, be provided with together the notes pressure ring groove that be arranged in parallel with the O ring recess, described notes pressure ring groove and sealed faying face conducting, and the end face of end cover be provided with two with the threaded holes of annotating the pressure ring groove and communicating; In described each O ring recess O-ring seals is set.
In a preferred embodiments of the present invention, a threaded hole on the described end cover is provided with ball valve, and another threaded hole connects a pressurized equipment.
In a preferred embodiments of the present invention, described pressurized equipment comprises the high-pressure oil pipe that is connected in another threaded hole, and high-pressure oil pipe connects a pitcher pump; Described high-pressure oil pipe also connects a tensimeter.
In a preferred embodiments of the present invention, described two threaded holes are symmetrical arranged at end cover.
In a preferred embodiments of the present invention, described sealed faying face is parallel to the axial direction of body, and is made of body open end internal face and end cover protuberance outside wall surface; Described end cover protuberance stretches to body open end; Described twice O ring recess all is located on the described protuberance cylindrical outer wall face vertically with annotating the pressure ring groove.
In a preferred embodiments of the present invention, described sealed faying face is perpendicular to the axial direction of body, and is made of body open end end face and end cover bottom surface; Described twice O ring recess all radially is located on the bottom surface of described end cover with one heart with annotating the pressure ring groove.
In a preferred embodiments of the present invention, described airtight container body and end cover are by bolt-connection.
From the above mentioned, the present invention makes change in the structure of sealing, will only need one O to enclose sealing and change the sealing of twice O circle into, and the pressure ring groove is annotated in setting together in the middle of twice O ring recess; So, no matter be that pressure vessel or pressurized capsule all only need suppress and get final product annotating the pressure ring groove, the amount of suppressing is little, and is easy to operate and simple in structure.
Description of drawings
The following drawings only is intended to the present invention done and schematically illustrates and explain, not delimit the scope of the invention.Wherein:
Figure 1A: be the structural representation of the sealing pressure tester of O-ring seals of the present invention.
Figure 1B: be the local structure for amplifying synoptic diagram among Figure 1A.
Fig. 2: the syndeton synoptic diagram during for the sealing pressure tester pressure testing of O-ring seals of the present invention.
Fig. 3: be the structural drawing of the sealing pressure tester pressure testing of O-ring seals of the present invention after finishing.
Embodiment
Understand for technical characterictic of the present invention, purpose and effect being had more clearly, now contrast description of drawings the specific embodiment of the present invention.
The present invention proposes a kind of sealing pressure-measuring method of O-ring seals, at the wherein side seal face of sealed faying face twice O ring recess is set, and the notes pressure ring groove with the sealed faying face conducting is set between twice O ring recess together abreast; In each O ring recess O-ring seals is set; In described notes pressure ring groove, inject preset pressure (can be oil pressure, hydraulic pressure or air pressure etc.) by pressurized equipment, and the pressurize certain hour, thus, detect the sealing effectiveness of the O-ring seals of annotating pressure ring groove both sides.
Such as Figure 1A, Figure 1B and shown in Figure 2, according to above-mentioned pressure-measuring method, the present invention also proposes a kind of sealing pressure tester 100 of O-ring seals, sealing pressure testing device 100 comprises airtight container body 1 and is fixedly installed on the end cover 2 of body 1 openend, in the present embodiment, described airtight container body 1 is connected by bolt 3 with end cover 2; In the sealed faying face L of body 1 and end cover 2, be positioned on the side of end cover 2, be provided with the O ring recess 21 that the twice interval arranges, between twice O ring recess 21, be provided with together the notes pressure ring groove 22 that be arranged in parallel with O ring recess 21, described notes pressure ring groove 22 and sealed faying face L conducting, and be provided with two threaded holes 23 that communicate with notes pressure ring groove 22 at the end face of end cover 2; In described each O ring recess 21 O-ring seals 4 is set.When pressure testing, as shown in Figure 2, on the threaded hole 23 on the described end cover 2 ball valve 5 is set, connect a pressurized equipment 6 on another threaded hole 23; In the present embodiment, described pressurized equipment 6 comprises the high-pressure oil pipe 61 that is connected in another threaded hole 23, and high-pressure oil pipe 61 connects a pitcher pump 62; Go back and connect a tensimeter 63 on the described high-pressure oil pipe 61.To annotating the pressure of suppressing in the pressure ring groove 22 to needs, whether and pressurize certain hour is observed tensimeter 63 readings and is changed by pitcher pump 62, if tensimeter 63 readings are constant, then the O-ring seals sealing is intact.After pressure testing is finished, remove ball valve 5, oil pipe 61 and pitcher pump 62, and seal threaded hole 23 (as shown in Figure 3) on the end cover 2 with two sealing bolts 7.
The sealing of general existing O circle only needs one O-ring seals to get final product, thus, if pressure vessel (being subjected to interior pressure), traditional pressure-measuring method need to be in container filling liquid and suppressing to required pressure; If pressurized capsule (being subjected to external pressure), then traditional pressure-measuring method need to be placed on whole pressurized capsule in the larger container, and suppresses; This existing method wastes time and energy, and operates extremely inconvenient.
From the above mentioned, the present invention makes change in the structure of sealing, will only need one O to enclose sealing and change the sealing of twice O circle into, and the pressure ring groove is annotated in setting together in the middle of twice O ring recess; So, no matter be that pressure vessel or pressurized capsule all only need suppress and get final product annotating the pressure ring groove, the amount of suppressing is little, and is easy to operate and simple in structure.
Further, in above-mentioned pressure testing process, at first to open ball valve 5, squeeze into hydraulic oil by pitcher pump 62 to annotating in the pressure ring groove 22, original air in the pressure ring groove 22 is annotated in the hydraulic oil extruding, and by the air in the ball valve 5 discharge notes pressure ring grooves 22, when treating that hydraulic oil is filled with pressure ring groove 22 fully, close ball valve 5, and continue to suppress, until tensimeter 63 readings are required pressure, whether the pressurize certain hour is observed tensimeter 63 readings and is changed; If tensimeter 63 readings are constant, represent that then the O-ring seals sealing is intact.
After pressure testing is finished, proved the reliability of O-ring seals, just airtight container can have been inserted its real working environment, and bring into play its effect.So, after pressure testing is finished, remove ball valve 5, oil pipe 61 and pitcher pump 62, fill with pressure ring groove 22 with hydraulic oil (or lubricating oil), and seal two threaded holes 23 on the end cover 2 with two sealing bolts 7; Lubricating oil can lubricate the O circle, and sealing bolt 7 also plays sealing function one, and ambient pressure is wanted to enter in the airtight container, needs to break through the double seal of sealing bolt 7 and O-ring seals.
Airtight container described in the present invention can be high pressure vessel, also can be pressurized capsule.
Further, in the present embodiment, as shown in Figure 2, described two threaded holes 23 are at end cover 2 and are symmetrical arranged; Threaded hole 23 communicates with annotating pressure ring groove 22, is the passage of oil circuit when suppressing, when suppressing, need to utilize hydraulic oil to squeeze original air in the notes pressure ring groove 22, therefore, one of them threaded hole 23 is the inlet port of hydraulic oil, and another threaded hole 23 is the escape hole of gas.
Shown in Figure 1A, Figure 1B, in the present embodiment, described sealed faying face L is the axial direction that is parallel to body 1, and sealed faying face L is made of body 1 openend internal face and end cover 2 protuberance outside wall surface; Described end cover 2 protuberances stretch to the openend of body 1; Described twice O ring recess 21 all is located on the described protuberance cylindrical outer wall face along body 1 axial direction with annotating pressure ring groove 22.Structure that this structure is said in the mechanical design handbook " piston type O encloses sealing ".
As another embodiment of present embodiment, described sealed faying face L can also be perpendicular to the axial direction of body 1, that is: sealed faying face L adopts the end face of body 1 openend and the bottom surface of end cover 2 to consist of (not shown); So, described twice O ring recess 21 namely is along body 1 radial direction with annotating pressure ring groove 22, and is located on one heart on the bottom surface of described end cover 2.Structure that this structure is said in the mechanical design handbook " end face O encloses sealing ".
The present invention makes change in the structure of sealing, will only need one O to enclose sealing and change the sealing of twice O circle into, and the pressure ring groove is annotated in setting together in the middle of twice O ring recess; So, no matter be that pressure vessel or pressurized capsule all only need suppress and get final product annotating the pressure ring groove, the amount of suppressing is little, and is easy to operate and simple in structure.
The above only is the schematic embodiment of the present invention, is not to limit scope of the present invention.Any those skilled in the art, the equivalent variations of having done under the prerequisite that does not break away from design of the present invention and principle and modification all should belong to the scope of protection of the invention.
Claims (8)
1. the sealing pressure-measuring method of an O-ring seals arranges twice O ring recess at the wherein side seal face of sealed faying face, and the notes pressure ring groove with the sealed faying face conducting is set between twice O ring recess together abreast; In each O ring recess O-ring seals is set; By pressurized equipment injection pressure in the described notes pressure ring groove, and the pressurize certain hour, thus, detect the sealing effectiveness of the O-ring seals of annotating pressure ring groove both sides.
2. the sealing pressure tester of an O-ring seals comprises airtight container body and the end cover that is fixedly installed on body open end; It is characterized in that: in the sealed faying face of body and end cover, be positioned on the side of end cover, be provided with the O ring recess that the twice interval arranges, between twice O ring recess, be provided with together the notes pressure ring groove that be arranged in parallel with the O ring recess, described notes pressure ring groove and sealed faying face conducting, and the end face of end cover be provided with two with the threaded holes of annotating the pressure ring groove and communicating; In described each O ring recess O-ring seals is set.
3. the sealing pressure tester of O-ring seals as claimed in claim 2, it is characterized in that: a threaded hole on the described end cover is provided with ball valve, and another threaded hole connects a pressurized equipment.
4. the sealing pressure tester of O-ring seals as claimed in claim 3, it is characterized in that: described pressurized equipment comprises the high-pressure oil pipe that is connected in another threaded hole, high-pressure oil pipe connects a pitcher pump; Described high-pressure oil pipe also connects a tensimeter.
5. the sealing pressure tester of O-ring seals as claimed in claim 3, it is characterized in that: described two threaded holes are symmetrical arranged at end cover.
6. the sealing pressure tester of O-ring seals as claimed in claim 2, it is characterized in that: described sealed faying face is parallel to the axial direction of body, and is made of body open end internal face and end cover protuberance outside wall surface; Described end cover protuberance stretches to body open end; Described twice O ring recess all is located on the described protuberance cylindrical outer wall face vertically with annotating the pressure ring groove.
7. the sealing pressure tester of O-ring seals as claimed in claim 2 is characterized in that: described sealed faying face is perpendicular to the axial direction of body, and is made of body open end end face and end cover bottom surface; Described twice O ring recess all radially is located on the bottom surface of described end cover with one heart with annotating the pressure ring groove.
8. such as the sealing pressure tester of claim 6 or 7 described O-ring seals, it is characterized in that: described airtight container body and end cover are by bolt-connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210345478.9A CN102879156B (en) | 2012-09-17 | 2012-09-17 | The sealing pressure-measuring method of O-ring seals and packoff thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210345478.9A CN102879156B (en) | 2012-09-17 | 2012-09-17 | The sealing pressure-measuring method of O-ring seals and packoff thereof |
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| CN102879156A true CN102879156A (en) | 2013-01-16 |
| CN102879156B CN102879156B (en) | 2015-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210345478.9A Expired - Fee Related CN102879156B (en) | 2012-09-17 | 2012-09-17 | The sealing pressure-measuring method of O-ring seals and packoff thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316271A (en) * | 2014-11-04 | 2015-01-28 | 天津博益气动股份有限公司 | Air tightness testing tool for valve bodies of unthreaded hole connector types |
| CN104554673A (en) * | 2014-10-30 | 2015-04-29 | 中国运载火箭技术研究院 | Pressureproof sealed cabin suitable for underwater motions |
| CN108942155A (en) * | 2018-09-04 | 2018-12-07 | 哈尔滨电机厂有限责任公司 | A kind of hydraulic turbine large size ball valve metal sealing surface pressure deformation adjusting process method |
| CN110555288A (en) * | 2019-09-25 | 2019-12-10 | 中国石油大学(华东) | Method and system for determining axial load of graphite packing ring for static coupling seal |
| CN111900573A (en) * | 2020-08-04 | 2020-11-06 | 同济大学 | Photoelectric separation connection cavity of ocean photoelectric composite cable and sealing detection method |
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| US5375453A (en) * | 1993-08-31 | 1994-12-27 | Westinghouse Electric Corporation | Assembly for evaluating gasket service life and method for performing the same |
| JP2002364749A (en) * | 2001-06-06 | 2002-12-18 | Mitsubishi Heavy Ind Ltd | Method and device for evaluating property of metal gasket |
| CN2539021Y (en) * | 2002-04-25 | 2003-03-05 | 广州市新龙浩工业技术有限公司 | Leakage-preventing flange sealer |
| CN101666700A (en) * | 2009-09-21 | 2010-03-10 | 南京工业大学 | Method and device for testing leakage rate of high-temperature sealing gasket |
| CN201965004U (en) * | 2011-01-18 | 2011-09-07 | 浙江吉利汽车有限公司 | Sealing ring detector for press clutch |
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2012
- 2012-09-17 CN CN201210345478.9A patent/CN102879156B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5375453A (en) * | 1993-08-31 | 1994-12-27 | Westinghouse Electric Corporation | Assembly for evaluating gasket service life and method for performing the same |
| JP2002364749A (en) * | 2001-06-06 | 2002-12-18 | Mitsubishi Heavy Ind Ltd | Method and device for evaluating property of metal gasket |
| CN2539021Y (en) * | 2002-04-25 | 2003-03-05 | 广州市新龙浩工业技术有限公司 | Leakage-preventing flange sealer |
| CN101666700A (en) * | 2009-09-21 | 2010-03-10 | 南京工业大学 | Method and device for testing leakage rate of high-temperature sealing gasket |
| CN201965004U (en) * | 2011-01-18 | 2011-09-07 | 浙江吉利汽车有限公司 | Sealing ring detector for press clutch |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104554673A (en) * | 2014-10-30 | 2015-04-29 | 中国运载火箭技术研究院 | Pressureproof sealed cabin suitable for underwater motions |
| CN104554673B (en) * | 2014-10-30 | 2017-06-06 | 中国运载火箭技术研究院 | A kind of pressure-resistant seal cabin suitable for sub-aqua sport |
| CN104316271A (en) * | 2014-11-04 | 2015-01-28 | 天津博益气动股份有限公司 | Air tightness testing tool for valve bodies of unthreaded hole connector types |
| CN108942155A (en) * | 2018-09-04 | 2018-12-07 | 哈尔滨电机厂有限责任公司 | A kind of hydraulic turbine large size ball valve metal sealing surface pressure deformation adjusting process method |
| CN108942155B (en) * | 2018-09-04 | 2020-04-14 | 哈尔滨电机厂有限责任公司 | Pressure deformation adjusting process method for metal sealing surface of large ball valve of water turbine |
| CN110555288A (en) * | 2019-09-25 | 2019-12-10 | 中国石油大学(华东) | Method and system for determining axial load of graphite packing ring for static coupling seal |
| CN110555288B (en) * | 2019-09-25 | 2023-04-18 | 中国石油大学(华东) | Method and system for determining axial load of graphite packing ring for static coupling seal |
| CN111900573A (en) * | 2020-08-04 | 2020-11-06 | 同济大学 | Photoelectric separation connection cavity of ocean photoelectric composite cable and sealing detection method |
| CN111900573B (en) * | 2020-08-04 | 2021-07-23 | 同济大学 | Photoelectric separation connection cavity of ocean photoelectric composite cable and sealing detection method |
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| CN102879156B (en) | 2015-11-04 |
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Granted publication date: 20151104 Termination date: 20160917 |