CN209943504U - High-temperature high-pressure sealing device - Google Patents
High-temperature high-pressure sealing device Download PDFInfo
- Publication number
- CN209943504U CN209943504U CN201920294710.8U CN201920294710U CN209943504U CN 209943504 U CN209943504 U CN 209943504U CN 201920294710 U CN201920294710 U CN 201920294710U CN 209943504 U CN209943504 U CN 209943504U
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- China
- Prior art keywords
- kettle cover
- model
- flange
- sealing device
- cylinder
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- 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.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 28
- 238000003466 welding Methods 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 6
- 238000011084 recovery Methods 0.000 description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010963 304 stainless steel Substances 0.000 description 2
- 229910000619 316 stainless steel Inorganic materials 0.000 description 2
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 208000025865 Ulcer Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000036269 ulceration Effects 0.000 description 1
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- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model provides a high-temperature and high-pressure sealing device, which comprises an upper kettle cover; an upper flange is arranged on the lower side of the bottom of the upper kettle cover; the upper flange is fixedly connected with the upper kettle cover through first fastening bolts arranged on the periphery in a threaded manner, and a cylinder is arranged on the lower side of the bottom of the upper flange; a lower flange is arranged at the lower side of the bottom of the cylinder body; a lower kettle cover is arranged at the lower side of the bottom of the lower flange; the lower kettle cover is fixedly connected with the lower flange through second fastening bolts arranged on the periphery in a threaded manner; the utility model is suitable for a novel square inner bag model especially is fit for the sealed form of thin wall construction's built-in model, has promoted built-in model's pressure transmission efficiency.
Description
Technical Field
The utility model relates to a petroleum and natural gas's exploration and development field specifically is a high temperature high pressure sealing device.
Background
The square inner container model is a core component of the thickened oil thermal recovery experimental device, in the traditional thickened oil thermal recovery experiment, the square inner container model is often designed to be very thick and heavy as the occurrence occasion of main experimental contents, the reason for the design is that the square inner container model is placed in a high-pressure chamber, and after the high-pressure chamber is pressurized, the square inner container model is subjected to higher pressure, and if the wall thickness of the model is not enough, the phenomena of structural damage and the like easily occur. In the novel thickened oil thermal recovery experimental device, the square inner container is creatively arranged into a relatively light and thin form, so the design is that in the novel experimental device, the inside of the square model can be pressurized from the outside of the high-pressure cabin, and in the experimental process, due to mutual offset of the internal pressure and the external pressure of the inner container model, the equivalent pressure received by the model wall can not exceed the allowable stress of the material.
Although the novel liner model is more and more popular in thick oil thermal recovery experiments, the sealing form of the novel liner model is not changed all the time, and the novel liner model is still sealed by adopting the traditional fluorine rubber O-shaped ring. The fluorine glue O-shaped ring has been proved to meet the test requirements in the traditional liner model, but the reduction of the wall thickness of the novel liner model leads to the transmission of internal and external pressure to become more convenient, the combined action of the internal and external resultant force of the model forms a resultant force moment to act on the sealing end surface of the model, and the sealing of the liner model adopting the single O-shaped ring becomes a problem under the environment of high temperature and high pressure.
The utility model discloses high temperature high pressure sealing method can not satisfy the current situation of high temperature high pressure experimental environment to traditional sealed form and has made the improvement, and the problem of main solution is in the experimental apparatus who adopts novel frivolous square inner bag model, under the highly compressed environment of high temperature, guarantees that square inner bag model can not take place to leak.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high temperature high pressure sealing device to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a high-temperature and high-pressure sealing device comprises an upper kettle cover; an upper flange is arranged on the lower side of the bottom of the upper kettle cover; the upper flange is fixedly connected with the upper kettle cover through first fastening bolts arranged on the periphery in a threaded manner, and a cylinder is arranged on the lower side of the bottom of the upper flange; a lower flange is arranged at the lower side of the bottom of the cylinder body; a lower kettle cover is arranged at the lower side of the bottom of the lower flange; and the lower kettle cover is fixedly connected with the lower flange through second fastening bolts arranged around.
As a further aspect of the present invention: the cylinder body is cylindrical, the interior of the cylinder body is hollow, and the top of the cylinder body is connected with the upper flange in a welding mode.
As a further aspect of the present invention: the top of the lower flange is connected with the cylinder body in a welding mode.
As a further aspect of the present invention: the upper kettle cover, the lower kettle cover, the upper flange, the lower flange and the cylinder are all made of stainless steel materials.
As a further aspect of the present invention: the upper flange and the upper kettle cover, and the lower flange and the lower kettle cover are sealed by adopting the arrangement form of the inner gasket, the O-shaped ring and the outer gasket.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model has simple structure and good universality, and the sealing form of the built-in model, especially the built-in model under confining pressure environment can adopt the technology of the utility model; the utility model can meet the sealing requirement no matter in low-temperature low-pressure or high-temperature high-pressure environment; the sealing structure is suitable for novel square inner container models, is particularly suitable for the sealing form of the built-in model with a thin-wall structure, and improves the pressure transmission efficiency of the built-in model.
Drawings
Fig. 1 is a schematic structural diagram of a high-temperature and high-pressure sealing device.
Fig. 2 is a schematic structural diagram of a high-temperature high-pressure sealing device B.
In the figure: 1-a first fastening bolt, 2-an upper kettle cover, 3-an upper flange, 4-a barrel, 5-a lower flange, 6-a second fastening bolt, 7-a lower kettle cover, 8-an O-shaped ring, 9-an outer gasket and 10-an inner gasket.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Referring to fig. 1-2, a high temperature and high pressure sealing device includes an upper kettle cover 2; an upper flange 3 is arranged at the lower side of the bottom of the upper kettle cover 2; the upper flange 3 is fixedly connected with the upper kettle cover 2 through first fastening bolts 1 arranged on the periphery in a threaded manner, and a cylinder 4 is arranged on the lower side of the bottom of the upper flange; the cylinder body 4 is cylindrical, the interior of the cylinder body is hollow, the top of the cylinder body is connected with the upper flange 3 in a welding mode, and the lower side of the bottom of the cylinder body is provided with a lower flange 5; the top of the lower flange 5 is connected with the cylinder 4 in a welding mode, and the lower side of the bottom of the lower flange is provided with a lower kettle cover 7; the lower kettle cover 7 is fixedly connected with the lower flange 5 through second fastening bolts 6 arranged on the periphery in a threaded manner; the upper kettle cover 2, the lower kettle cover 7, the upper flange 3, the lower flange 5 and the cylinder 4 are all made of stainless steel materials, and 304 stainless steel, 316 stainless steel or 316L stainless steel can be selected according to different experimental requirements; the upper flange 3 and the upper kettle cover 2, the lower flange 5 and the lower kettle cover 7 are sealed by adopting an arrangement form of an inner gasket 10, an O-shaped ring 8 and an outer gasket 9, the O-shaped ring 8 can be made of a fluorine rubber material or a brominated nitrile material according to different experiment temperatures, and the outer gasket 9 and the inner gasket 10 are generally made of 304 stainless steel materials.
Comprises the following steps:
the method comprises the following steps: and welding the upper flange 3, the lower flange 5 and the cylinder 4.
Step two: install interior gasket 10, O type circle 8 and outer gasket 9 in proper order in the seal groove of last flange 3, lift last kettle cover 2 to the flange 3 directly over after the installation finishes, utilize first tight set bolt 1 to be connected last flange 3 and last kettle cover 2, the rotatory cauldron body after finishing connecting.
Step three: and (5) sealing the lower flange 5 and the lower kettle cover 7 according to the mode of the second step to finish the assembly of the whole model.
The utility model discloses a theory of operation is: firstly, an operator welds an upper flange 3, a lower flange 5 and a cylinder 4, an inner gasket 10, an O-shaped ring 8 and an outer gasket 9 are sequentially arranged in a sealing groove of the upper flange 3 after welding, an upper kettle cover 2 is lifted to be right above the upper flange 3 after installation, the upper flange 3 and the upper kettle cover 2 are connected through a first fastening bolt 1, the kettle body is rotated after connection is finished, the lower flange 5 and a lower kettle cover 7 are sealed in the same mode, and the whole model is assembled. The utility model aims at the sealing of a square inner container model of novel thickened oil experimental equipment, the wall thickness of the square inner container model is thinner than that of a traditional model, so that the conduction effect of the internal and external pressure of the model is more obvious, and the sealing of an O-shaped ring has proved to have considerable reliability as a traditional sealing form under the environment of low temperature and low pressure; under the highly compressed environment of high temperature, at first O type circle takes place to soften easily and destroys and finally loses sealed effect, again because the difference in pressure acts on the sealed terminal surface of model and forms resultant moment inside and outside the model, has accelerateed sealing structure's the ulceration, the utility model discloses a sealed form of double-gasket clamp O type circle has solved this problem well, and when inside pressure was higher than outside pressure, resultant moment made the inside extrusion of outer packing ring form well sealed, when inside pressure was less than outside pressure, resultant moment made the outside extrusion of inner packing ring form well sealed, like this, the utility model discloses a novel sealed of square inner bag model under high temperature high pressure.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (5)
1. A high-temperature and high-pressure sealing device comprises an upper kettle cover (2); the device is characterized in that an upper flange (3) is arranged on the lower side of the bottom of the upper kettle cover (2); the upper flange (3) is fixedly connected with the upper kettle cover (2) through first fastening bolts (1) arranged on the periphery in a threaded manner, and a cylinder body (4) is arranged on the lower side of the bottom of the upper flange; a lower flange (5) is arranged at the lower side of the bottom of the cylinder body (4); a lower kettle cover (7) is arranged at the lower side of the bottom of the lower flange (5); the lower kettle cover (7) is fixedly connected with the lower flange (5) through second fastening bolts (6) arranged around.
2. A high temperature and pressure sealing device according to claim 1, wherein the cylinder (4) is cylindrical, the interior of the cylinder is hollow, and the top of the cylinder is connected with the upper flange (3) by welding.
3. A high temperature and pressure sealing device according to claim 1, wherein the top of the lower flange (5) is connected with the cylinder (4) by welding.
4. A high temperature and high pressure sealing device according to claim 1, wherein the upper kettle cover (2), the lower kettle cover (7), the upper flange (3), the lower flange (5) and the cylinder (4) are made of stainless steel.
5. A high temperature and pressure sealing device according to claim 1, wherein the upper flange (3) and the upper kettle cover (2) and the lower flange (5) and the lower kettle cover (7) are sealed by an arrangement of an inner gasket (10), an O-ring (8) and an outer gasket (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920294710.8U CN209943504U (en) | 2019-03-08 | 2019-03-08 | High-temperature high-pressure sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920294710.8U CN209943504U (en) | 2019-03-08 | 2019-03-08 | High-temperature high-pressure sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209943504U true CN209943504U (en) | 2020-01-14 |
Family
ID=69123303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920294710.8U Expired - Fee Related CN209943504U (en) | 2019-03-08 | 2019-03-08 | High-temperature high-pressure sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209943504U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826953A (en) * | 2019-03-08 | 2019-05-31 | 北京瑞莱博石油技术有限公司 | A kind of high-temperature and high-pressure sealing device |
-
2019
- 2019-03-08 CN CN201920294710.8U patent/CN209943504U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826953A (en) * | 2019-03-08 | 2019-05-31 | 北京瑞莱博石油技术有限公司 | A kind of high-temperature and high-pressure sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |