CN1544833A - Sealing device - Google Patents
Sealing device Download PDFInfo
- Publication number
- CN1544833A CN1544833A CNA2003101133144A CN200310113314A CN1544833A CN 1544833 A CN1544833 A CN 1544833A CN A2003101133144 A CNA2003101133144 A CN A2003101133144A CN 200310113314 A CN200310113314 A CN 200310113314A CN 1544833 A CN1544833 A CN 1544833A
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- CN
- China
- Prior art keywords
- rubber bag
- rubber
- oil
- sealing
- metal shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Examining Or Testing Airtightness (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention relates to a sealing device, comprising: a metal housing having a cross-section of "Contraband"; the rubber layer with the section in the shape of 'Contraband' is internally provided with an annular rubber bag; the metal framework with the C-shaped cross section is arranged in the rubber layer outside the rubber bag; the protective plate is connected to the inner end of the metal shell through a fixing piece, and a through hole with the diameter corresponding to that of the sealed part is formed in the center of the protective plate; an oil inlet pipe and an oil outlet pipe; which are respectively communicated with the rubber bags and fixedly connected on the metal shell. The sealing of the invention is realized by the deformation of the rubber bag, namely when high-pressure oil is filled into the rubber bag, the deformation of the rubber bag can be tightly attached to a tool to play a sealing role, and when the high-pressure oil is decompressed and flows out, the rubber bag can be rapidly contracted to reserve a space for taking out the tool, so that the rubber bag cannot be damaged by friction with the tool, the sealing effect is good, the pressure measuring efficiency is high, and the service life of the sealing device can be effectively prolonged. The invention can be used in the pressure testing device of the oil field tool, and can also be widely used in the sealing device of other pipelines with higher pressure.
Description
Technical field
The present invention relates to a kind of seal arrangement, particularly about a kind of rubber sealing device that is used for pressure testing machine.
Background technique
In operations such as oil drilling oil recovery, downhole tool is essential device, and different types of instrument has different structure according to the difference in functionality of its realization, but their profile is similar, be about 1 meter of length, the pipe fitting that external diameter is 70～115 millimeters, each parts adopts and is threaded.Because in the tool work process, its inner chamber will bear the pressure of 20～40MPa and seepage can not take place, therefore qualified instrument is after assembling finishes, must suppress test, promptly dash and annotate high pressure water at the instrument inner chamber, and the voltage stabilizing certain hour, whether measurer has the situation of seepage, and then guarantees the reliability of instrument in actual the use.
Suppress test, will select the pressure testing machine tested, and the quality of pressure testing machine sealing effect directly affects the success or failure of pressure testing, so the sealing effect of seal arrangement and wear life become the important indicator of estimating whole pressure testing machine performance.Existing pressure testing machine, its sealing are to adopt the sealing head of clad rubber layer with instrument two dieback, are adjacent to the inner and outer surface at instrument two by the distortion of rubber material itself, reach airtight effect.But because rubber material distortion back restorability itself is not good, just can not play the effect of sealing after using several times, and the huge impacting force in two also makes the rubber material serious wear in the seal process, often be that one to two instrument of pressure testing will be changed sealing head, the weak point in working life of sealing head makes that pressure testing efficient is low, and the expense height of test.
Summary of the invention
At the problems referred to above, the purpose of this invention is to provide a kind of favorable sealing property, long service life is difficult for the seal arrangement of wear and aging.
For achieving the above object, the present invention takes following technological scheme: a kind of seal arrangement, and it comprises: a cross section is the metal shell of " Contraband " shape; One cross section is the rubber layer of " Contraband " shape, is provided with a ring-shaped rubber capsule in it;
One cross section is the metal frame of " C " shape, and it is arranged in the described rubber layer in the described rubber bag tank outside; One backplate, it is connected the inner of described metal shell by fixed block, the center of described backplate be provided with one with the corresponding through hole of sealed parts diameter; One into and out of oil pipe; It is communicated with described rubber bag tank respectively, and is fixedly connected on the described metal shell.
The center, outer end of described metal shell is connected with the topping up pipe of the described metal shell of a break-through, rubber layer.
Through hole minimum diameter on the described backplate is the internal diameter after oil-filled greater than described rubber bag tank.
Through hole maximum diameter on the described backplate is the internal diameter when not oil-filled less than described rubber bag tank.
The present invention is owing to take above technological scheme, it has the following advantages: 1, the present invention since be provided with one can be oil-filled the ring-shaped rubber capsule, therefore can pack tightly the end of instrument by the expansion of rubber bag tank, make water be sealed in tool port one side closely and can outwards not ooze out, thereby guaranteed sealing effect under high pressure conditions.2, because shell of the present invention adopts metallic material, in the rubber layer in the outside of rubber bag tank, also be provided with the metal frame of " C " shape, and fixed backplate again at rubber bag tank one end, therefore limited the deformation direction and the sealing effect of rubber bag tank effectively.3, sealing of the present invention is that distortion by rubber bag tank realizes, promptly when high pressure oil charges into rubber bag tank, the distortion of rubber bag tank can be close to instrument and play seal action, and when the high pressure oil pressure release was flowed out, rubber bag tank can shrink slot milling again rapidly and take out instrument, therefore, rubber bag tank can not produce friction with instrument and cause damage, is provided the working life of seal arrangement effectively, need has been specially adapted to the position of frequent dismounting, this is that the conventional seals mode is unappeasable.4, because the present invention is simple in structure, easy to operate rapid, use sealing effect still repeatedly, therefore improved the pressure testing efficient of pressure testing machine effectively, reduced testing expense.The present invention not only can be used for the pressure testing device of oil field instrument, and can be widely used in the seal arrangement of the higher pipeline of other pressure.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is another structural representation of the present invention
Fig. 3 is a user mode schematic representation of the present invention
Embodiment
As shown in Figure 1, the present invention includes: a radial cross section is the metal shell 1 of " Contraband " shape; The rubber layer 2 that one radial cross section is " Contraband " shape is set in shell 1, in rubber layer 2, is provided with a ring-shaped rubber capsule 3; In the rubber layer 2 in rubber bag tank 3 outsides, be provided with the metal frame 4 that a cross section is " C " shape.One backplate 5 is connected the inner of metal shell 2 by fixed block 6, blocks rubber bag tank 3, the center of backplate 6 be provided with one with the corresponding through hole 7 of sealed parts diameter.One oil inlet pipe 8 and an oil outlet tube 9 are communicated with rubber bag tank 3 respectively, and are fixedly connected on the metal shell 1.
The foregoing description, be arranged on the seal arrangement that needs sealing one end, if the present invention is all adopted at two of sealed instrument, and need feed high pressure water, can a topping up pipe 10 (as shown in Figure 2) that be communicated with the unit under test end be installed in the outer end of shell 1 center fixation from a side.
As shown in Figure 3, when using, the present invention (all adopt the present invention to be example) with two ends, two shells 1 of the present invention are separately fixed on two supports that can move in orbit, the center, outer end of one of them shell 1 of the present invention connects a topping up pipe 10, to be installed in two rubber bag tanks 3 by side instrument 11, and fixing two stands.At first charge into high pressure oil by oil inlet pipe 8 in rubber bag tank 3, make rubber bag tank 4 dilatancies, seal tightly the two ends of tested instrument 11, the topping up pipe 10 from an end charges into high pressure water then, carries out pressure test.In the time will dismantling tested instrument 11, close topping up pipe 10 earlier, close oil inlet pipe 8 again, to open oil outlet tube 9 and open, rubber bag tank 3 releases are shunk, and abdicate the loading and unloading space of tested instrument 11, take out tested instrument.
Claims (4)
1, a kind of seal arrangement, it is characterized in that: it comprises:
One cross section is the metal shell of " Contraband " shape;
One cross section is the rubber layer of " Contraband " shape, is provided with a ring-shaped rubber capsule in it;
One cross section is the metal frame of " C " shape, and it is arranged in the described rubber layer in the described rubber bag tank outside;
One backplate, it is connected the inner of described metal shell by fixed block, the center of described backplate be provided with one with the corresponding through hole of sealed parts diameter;
One into and out of oil pipe; It is communicated with described rubber bag tank respectively, and is fixedly connected on the described metal shell.
2, a kind of seal arrangement as claimed in claim 1 is characterized in that: the center, outer end of described metal shell is connected with the topping up pipe of the described metal shell of a break-through, rubber layer.
3, a kind of seal arrangement as claimed in claim 1 or 2 is characterized in that: the through hole minimum diameter on the described backplate is the internal diameter after oil-filled greater than described rubber bag tank.
4, a kind of seal arrangement as claimed in claim 1 or 2 is characterized in that: the through hole maximum diameter on the described backplate is the internal diameter when not oil-filled less than described rubber bag tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101133144A CN1314912C (en) | 2003-11-10 | 2003-11-10 | Sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101133144A CN1314912C (en) | 2003-11-10 | 2003-11-10 | Sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1544833A true CN1544833A (en) | 2004-11-10 |
| CN1314912C CN1314912C (en) | 2007-05-09 |
Family
ID=34336818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101133144A Expired - Fee Related CN1314912C (en) | 2003-11-10 | 2003-11-10 | Sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1314912C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370581A (en) * | 2016-09-29 | 2017-02-01 | 中国科学院武汉岩土力学研究所 | True triaxial shear rock mass shearing seepage test device suitable for high seepage pressure, and test method of test device |
| CN111396567A (en) * | 2020-03-04 | 2020-07-10 | 天霖(张家港)电子科技有限公司 | Inflatable waterproof sealing device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60101362A (en) * | 1983-11-07 | 1985-06-05 | Adachi Shin Sangyo Kk | Sealing member |
| CN85101331A (en) * | 1985-04-01 | 1987-01-10 | 曼内斯曼公司 | The instrument of check pipe on tubing test pressure machine |
| CN2045037U (en) * | 1989-03-27 | 1989-09-27 | 刘仁齐 | Sealer of feed rod |
| CN1053042A (en) * | 1991-02-20 | 1991-07-17 | 张革 | Expandable sealing ring |
| CN2116813U (en) * | 1992-03-02 | 1992-09-23 | 杨志民 | Expansion flexible sealing device |
| DE19831930A1 (en) * | 1998-07-16 | 2000-01-20 | Bosch Gmbh Robert | Sealing ring, e.g. for blanking-off cap on pipeline end, with end sector of cross section against one end wall |
| CN2380749Y (en) * | 1999-07-05 | 2000-05-31 | 张方杰 | Expansion sealing apparatus |
| CN2473396Y (en) * | 2001-03-30 | 2002-01-23 | 张德君 | Inner oil filling type oil sac sealing device |
-
2003
- 2003-11-10 CN CNB2003101133144A patent/CN1314912C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370581A (en) * | 2016-09-29 | 2017-02-01 | 中国科学院武汉岩土力学研究所 | True triaxial shear rock mass shearing seepage test device suitable for high seepage pressure, and test method of test device |
| CN111396567A (en) * | 2020-03-04 | 2020-07-10 | 天霖(张家港)电子科技有限公司 | Inflatable waterproof sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1314912C (en) | 2007-05-09 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070509 Termination date: 20141110 |
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| EXPY | Termination of patent right or utility model |