CN212745026U - High-pressure container wall-penetrating lead sealing device and high-pressure container comprising same - Google Patents
High-pressure container wall-penetrating lead sealing device and high-pressure container comprising same Download PDFInfo
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- CN212745026U CN212745026U CN202021599902.9U CN202021599902U CN212745026U CN 212745026 U CN212745026 U CN 212745026U CN 202021599902 U CN202021599902 U CN 202021599902U CN 212745026 U CN212745026 U CN 212745026U
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Abstract
The utility model discloses a high pressure resistant sealing device of a high pressure container wall-through lead wire, which comprises a metal bar, an insulating sleeve, an extrusion nut, an inner lining sealing ring and an outer lining sealing ring; the insulating sleeve is of a circular tube structure, a first folded edge and a second folded edge which are folded outwards and vertically are arranged at the top and the bottom of the insulating sleeve respectively, the insulating sleeve is divided into more than two sections along the axial direction, and a circle of outer lining sealing ring is arranged between every two adjacent sections of insulating sleeves; one end of the metal bar is an external wiring end, the other end of the metal bar is an internal wiring end, and the external wiring end of the metal bar is provided with a baffle plate arranged along the periphery; the inner connecting end of the metal rod extends into the insulating sleeve from the top of the insulating sleeve and penetrates out of the bottom of the insulating sleeve, the baffle plate on the metal rod is limited at the top of the insulating sleeve, and the extrusion nut is in threaded connection with the inner terminal of the metal rod penetrating out of the bottom of the insulating sleeve and is tightly attached to the second flange; the lining sealing ring is arranged between the metal rod and the insulating sleeve. The device effectively avoids the phenomena of air leakage and electric leakage, and has the advantages of simple structure, convenient assembly and disassembly and low cost.
Description
Technical Field
The utility model relates to a high-pressure vessel wears wall lead wire sealing device and contains its high-pressure vessel belongs to high-pressure vessel and wears wall lead wire sealed field.
Background
The crystal growth field is mostly needed to be carried out in a stainless steel pressure container and needs to be heated, so a heating cable needs to penetrate through the wall of the container and be connected with an external power supply. While the heating cable passing through the wall of the vessel needs to be insulated from the stainless steel vessel and be sealed against high pressure. In current use, routing power lines through the walls of the container is a serious problem.
The existing methods for leading the power line through the wall of the container have various methods, such as sealing by using AB glue, sealing by using a rubber pad, sealing by using a tetrafluoro pad, insulating by using bakelite, insulating by using ceramic and the like, but most of the methods have the phenomena of air leakage and electric leakage, and bring great problems and obstacles to crystal growth.
SUMMERY OF THE UTILITY MODEL
The utility model provides a high-pressure vessel wears wall lead wire sealing device and contains its high-pressure vessel, lead wire sealing device easily dismouting, leakproofness are good, have effectively avoided the phenomenon of gas leakage and electric leakage, provide effectual guarantee for crystal growth.
For solving the technical problem, the utility model discloses the technical scheme who adopts as follows:
a high pressure resistant sealing device of a high pressure vessel wall-penetrating lead comprises a metal rod, an insulating sleeve, an extrusion nut, an inner lining sealing ring and an outer lining sealing ring;
the insulating sleeve is of a circular tube structure, a first folded edge which is folded outwards and vertically is arranged at the top of the insulating sleeve, a second folded edge which is folded outwards and vertically is arranged at the bottom of the insulating sleeve, the insulating sleeve is divided into more than two sections along the axial direction, and a circle of outer lining sealing ring is arranged between every two adjacent sections of insulating sleeves;
one end of the metal bar is an external wiring end, the other end of the metal bar is an internal wiring end, the external wiring end of the metal bar is provided with a baffle plate arranged along the periphery, and the baffle plate is positioned on the inner side of the end part of the external wiring end of the metal bar; the outer diameter of the baffle is larger than the inner diameter of the insulating sleeve and smaller than the outer diameter of the first folded edge, the outer diameter of the extrusion nut is larger than the inner diameter of the insulating sleeve and smaller than the outer diameter of the second folded edge, the inner wiring end of the metal rod extends into the insulating sleeve from the top and penetrates out of the bottom of the insulating sleeve, the baffle on the metal rod is limited at the top of the insulating sleeve, and the extrusion nut is in threaded connection with the inner wiring end of the metal rod penetrating out of the bottom of the insulating sleeve and is tightly attached to the second folded edge; the inner lining sealing ring is arranged between the metal rod and the insulating sleeve and is tightly attached to the metal rod and the insulating sleeve, and the outer lining sealing ring is tightly attached to the metal rod and the insulating sleeve.
The arrangement of the first folded edge and the second folded edge on the insulating sleeve improves the stability of installation and use, and the insulating sleeve is axially divided into more than two sections, so that the insulating sleeve is convenient to install on one hand, and on the other hand, sealing is formed among the insulating sleeve, the installation hole in the high-pressure container and the metal rod, and the air tightness is improved; the lining sealing ring is used for sealing between the metal rod and the insulating sleeve; the outer lining sealing ring is used for sealing the insulating sleeve, the mounting hole on the high-pressure container and the metal rod; the arrangement of the baffle on the metal rod is convenient for limiting the external wiring end; the baffle is positioned at the inner side of the end part of the external connection end of the metal bar, namely the arrangement of the baffle does not influence the wiring of the external connection end of the metal bar; the extrusion nut is used for extruding and fixing the metal rod and the insulating sleeve.
When the device is used, the direction from the inside of the high-pressure container to the outside of the high-pressure container is the direction from the inside to the outside. The baffle is located inside (downstream) the end of the outer terminal of the metal bar, i.e. the baffle is close to the outer terminal but not located at the end of the outer terminal.
In order to achieve both cost and conductive efficiency, the metal rod is preferably a copper rod.
In order to further improve the stability of the lining sealing ring, more than two sealing grooves are arranged on the side wall of the metal rod positioned on the inner side of the insulating sleeve along the periphery, and each sealing groove is internally provided with one lining sealing ring.
In order to further ensure the insulation, temperature resistance and pressure resistance of the seal, the insulating sleeve is preferably a teflon insulating sleeve. Further preferably, the thickness of the insulating sleeve is 10-12 mm.
In order to further ensure the stability of the device and avoid electric leakage, the diameter of the baffle plate on the metal rod is 15-20mm larger than the inner diameter of the insulating sleeve and 5-10mm smaller than the outer diameter of the first folded edge. This ensures that the baffle cannot pass through the opening in the pressure vessel while ensuring that the baffle does not contact the stainless steel vessel.
In order to facilitate the installation and the sealing, the inner diameter of the insulating sleeve is 1-2mm larger than the diameter of the metal rod.
In order to further ensure the sealing performance and durability of the device, the inner lining sealing ring and the outer lining sealing ring are O-shaped fluorine rubber sealing rings.
The utility model provides a high-pressure vessel, contains the high-pressure resistant sealing device of above-mentioned high-pressure vessel wall lead wire, is equipped with the mounting hole on the high-pressure vessel, and insulating cover is installed at the mounting hole inboard, and extrusion nut compression insulating cover makes first hem and second hem joint laminating respectively on the upper and lower surface of mounting hole, and inside lining sealing washer closely laminates with metal bar and insulating cover, and outer lining sealing washer closely laminates with metal bar, insulating cover and mounting hole.
The device uses the metal rod to penetrate through the wall of the container, the O-shaped fluorine rubber sealing ring with excellent elasticity, toughness and sealing performance is adopted for sealing, the copper rod and the stainless steel container are isolated by the polytetrafluoroethylene insulating sleeve with good insulating performance, a high-pressure container can be well sealed, an external power supply can be connected to a heating device in the container, and meanwhile, the insulation between a power line and the stainless steel container can be ensured.
The technology not mentioned in the present invention refers to the prior art.
The utility model discloses high-pressure resistant sealing device of high-pressure vessel wall-penetrating lead wire has effectively solved the high-pressure gas leakage problem of power supply lead wire hole and the power cord electric leakage problem, and is sealed effectual, once the installation is accomplished and can be used for a long time, simple structure, easy dismounting, low in manufacturing cost; provides effective guarantee for crystal growth.
Drawings
FIG. 1 is a schematic structural view of a high pressure resistant sealing device for a high pressure vessel wall-penetrating lead of the present invention;
FIG. 2 is an enlarged view of the point A in FIG. 1;
in the figure, 1 is a metal rod, 11 is an external connection terminal, 12 is an internal connection terminal, 13 is a baffle, 14 is a sealing groove, 2 is an insulating sleeve, 21 is a first folding edge, 22 is a second folding edge, 3 is an extrusion nut, 4 is an inner lining sealing ring, and 5 is an outer lining sealing ring.
Detailed Description
For a better understanding of the present invention, the following examples are provided to further illustrate the present invention, but the present invention is not limited to the following examples.
The terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like in this application are used in the orientation or positional relationship shown in the drawings or in the use state, and are used for convenience in describing the application, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the application.
Example 1
As shown in fig. 1, a high pressure resistant sealing device for a wall-through lead of a high pressure vessel comprises a metal rod, an insulating sleeve, an extrusion nut, an inner lining sealing ring and an outer lining sealing ring;
the insulating sleeve is of a circular tube structure, a first folded edge which is folded outwards and vertically is arranged at the top of the insulating sleeve, a second folded edge which is folded outwards and vertically is arranged at the bottom of the insulating sleeve, the insulating sleeve is axially divided into three sections, and a circle of outer lining sealing ring is arranged between every two adjacent sections of insulating sleeves;
one end of the metal bar is an external wiring end, the other end of the metal bar is an internal wiring end, the external wiring end of the metal bar is provided with a baffle plate arranged along the periphery, and the baffle plate is positioned on the inner side of the end part of the external wiring end of the metal bar; the outer diameter of the baffle is larger than the inner diameter of the insulating sleeve and smaller than the outer diameter of the first folded edge, the outer diameter of the extrusion nut is larger than the inner diameter of the insulating sleeve and smaller than the outer diameter of the second folded edge, the inner wiring end of the metal rod extends into the insulating sleeve from the top and penetrates out of the bottom of the insulating sleeve, the baffle on the metal rod is limited at the top of the insulating sleeve, and the extrusion nut is in threaded connection with the inner wiring end of the metal rod penetrating out of the bottom of the insulating sleeve and is tightly attached to the second folded edge; the inner lining sealing ring is arranged between the metal rod and the insulating sleeve and is tightly attached to the metal rod and the insulating sleeve, and the outer lining sealing ring is tightly attached to the metal rod and the insulating sleeve.
The arrangement of the first folded edge and the second folded edge on the insulating sleeve improves the stability of installation and use, and the insulating sleeve is axially divided into three sections, so that the insulating sleeve is convenient to install on one hand, and the insulating sleeve, the installation hole on the high-pressure container and the metal rod are convenient to form sealing on the other hand, and the air tightness is improved; the lining sealing ring is used for sealing between the metal rod and the insulating sleeve; the outer lining sealing ring is used for sealing the insulating sleeve, the mounting hole on the high-pressure container and the metal rod; the arrangement of the baffle on the metal rod is convenient for limiting the external wiring end; the baffle is positioned at the inner side of the end part of the external connection end of the metal bar, namely the arrangement of the baffle does not influence the wiring of the external connection end of the metal bar; the extrusion nut is used for extruding and fixing the metal rod and the insulating sleeve.
Example 2
On the basis of the embodiment 1, the following improvements are further made: in order to take cost and conductive efficiency into account, the metal rod is a copper rod. As shown in fig. 2, in order to further improve the stability of the lining sealing ring, three sealing grooves are formed on the side wall of the metal rod located inside the insulating sleeve along the periphery, and each sealing groove is provided with one lining sealing ring.
Example 3
On the basis of the embodiment 2, the following improvements are further made: in order to further ensure the insulation, temperature resistance and pressure resistance of the seal, the insulation sleeve is a polytetrafluoroethylene insulation sleeve, and the thickness of the insulation sleeve is 12 mm.
Example 4
On the basis of the embodiment 3, the following improvements are further made: in order to further ensure the stability of the device and avoid electric leakage, the diameter of the baffle plate on the metal rod is 20mm larger than the inner diameter of the insulating sleeve and 10mm smaller than the outer diameter of the first folding edge. This ensures that the baffle cannot pass through the opening in the pressure vessel while ensuring that the baffle does not contact the stainless steel vessel. In order to facilitate the installation and the sealing, the inner diameter of the insulating sleeve is 1mm larger than the diameter of the metal rod. In order to further ensure the sealing performance and durability of the device, the inner lining sealing ring and the outer lining sealing ring are O-shaped fluorine rubber sealing rings.
Example 5
The utility model provides a high-pressure vessel, contain the high-pressure resistant sealing device of the high-pressure vessel wall lead wire of above-mentioned each example, be equipped with the mounting hole on the high-pressure vessel, insulating cover is installed at the mounting hole inboard, the insulating cover of extrusion nut compression, make first hem and second hem joint laminating respectively on the upper and lower surface of mounting hole, also the lateral wall of insulating cover is laminated with the inside wall of mounting hole, first hem and second hem laminate with the periphery laminating of surface about the mounting hole respectively, the inside lining sealing washer closely laminates with metal bar and insulating cover, the outside lining sealing washer and metal bar, insulating cover and mounting hole closely laminate.
The device uses the metal rod to penetrate through the wall of the container, the O-shaped fluorine rubber sealing ring with excellent elasticity, toughness and sealing performance is adopted for sealing, the copper rod and the stainless steel container are isolated by the polytetrafluoroethylene insulating sleeve with good insulating performance, a high-pressure container can be well sealed, an external power supply can be connected to a heating device in the container, and meanwhile, the insulation between a power line and the stainless steel container can be ensured.
Taking the example of the high-pressure vessel wall-piercing lead sealing device of example 4 mounted on a high-pressure vessel, experiments were carried out under the conditions and results shown in table 1.
Table 1 shows the experimental conditions and results
To summarize: the high-pressure-resistant sealing device for the wall-penetrating lead of the high-pressure container in the embodiment 4 is installed on the high-pressure container, nitrogen gas of 3MPa, 5MPa, 9MPa and 25MPa is filled in the high-pressure container, no gas leakage phenomenon is found after leak detection, the pressure gauge is kept still for 24 hours and is not changed, which shows that the sealing device has a remarkable effect on high-pressure sealing, can be well sealed, and achieves a gas-tight effect.
Claims (9)
1. A high pressure resistant sealing device of a high pressure vessel wall-penetrating lead wire is characterized in that: comprises a metal rod, an insulating sleeve, an extrusion nut, an inner lining sealing ring and an outer lining sealing ring;
the insulating sleeve is of a circular tube structure, a first folded edge which is folded outwards and vertically is arranged at the top of the insulating sleeve, a second folded edge which is folded outwards and vertically is arranged at the bottom of the insulating sleeve, the insulating sleeve is divided into more than two sections along the axial direction, and a circle of outer lining sealing ring is arranged between every two adjacent sections of insulating sleeves;
one end of the metal bar is an external wiring end, the other end of the metal bar is an internal wiring end, the external wiring end of the metal bar is provided with a baffle plate arranged along the periphery, and the baffle plate is positioned on the inner side of the end part of the external wiring end of the metal bar; the outer diameter of the baffle is larger than the inner diameter of the insulating sleeve and smaller than the outer diameter of the first folded edge, the outer diameter of the extrusion nut is larger than the inner diameter of the insulating sleeve and smaller than the outer diameter of the second folded edge, the inner wiring end of the metal rod extends into the insulating sleeve from the top and penetrates out of the bottom of the insulating sleeve, the baffle on the metal rod is limited at the top of the insulating sleeve, and the extrusion nut is in threaded connection with the inner wiring end of the metal rod penetrating out of the bottom of the insulating sleeve and is tightly attached to the second folded edge; the inner lining sealing ring is arranged between the metal rod and the insulating sleeve and is tightly attached to the metal rod and the insulating sleeve, and the outer lining sealing ring is tightly attached to the metal rod and the insulating sleeve.
2. The apparatus for sealing a high pressure vessel through-the-wall lead of claim 1, wherein: the metal rod is a copper rod.
3. The high pressure resistant sealing device for the wall-penetrating lead wire of the high pressure vessel as set forth in claim 1 or 2, wherein: more than two sealing grooves are formed in the side wall of the metal rod on the inner side of the insulating sleeve along the periphery, and a lining sealing ring is arranged in each sealing groove.
4. The high pressure resistant sealing device for the wall-penetrating lead wire of the high pressure vessel as set forth in claim 1 or 2, wherein: the insulating sleeve is a polytetrafluoroethylene insulating sleeve.
5. The high pressure resistant sealing device for the wall-penetrating lead wire of the high pressure vessel as set forth in claim 1 or 2, wherein: the thickness of the insulating sleeve is 10-12 mm.
6. The high pressure resistant sealing device for the wall-penetrating lead wire of the high pressure vessel as set forth in claim 1 or 2, wherein: the diameter of the baffle plate on the metal rod is 15-20mm larger than the inner diameter of the insulating sleeve and 5-10mm smaller than the outer diameter of the first folded edge.
7. The high pressure resistant sealing device for the wall-penetrating lead wire of the high pressure vessel as set forth in claim 1 or 2, wherein: the inner diameter of the insulating sleeve is 1-2mm larger than the diameter of the metal rod.
8. The high pressure resistant sealing device for the wall-penetrating lead wire of the high pressure vessel as set forth in claim 1 or 2, wherein: the inner lining sealing ring and the outer lining sealing ring are both O-shaped fluorine rubber sealing rings.
9. A high pressure vessel comprising the high pressure vessel wall-piercing lead sealing device of any one of claims 1 to 7, wherein: the high-pressure container is provided with a mounting hole, the insulating sleeve is mounted on the inner side of the mounting hole, the first folded edge and the second folded edge are respectively clamped and attached to the upper surface and the lower surface of the mounting hole by pressing the nut to compress the insulating sleeve, the lining sealing ring is closely attached to the metal rod and the insulating sleeve, and the outer lining sealing ring is closely attached to the metal rod, the insulating sleeve and the mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021599902.9U CN212745026U (en) | 2020-08-05 | 2020-08-05 | High-pressure container wall-penetrating lead sealing device and high-pressure container comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021599902.9U CN212745026U (en) | 2020-08-05 | 2020-08-05 | High-pressure container wall-penetrating lead sealing device and high-pressure container comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212745026U true CN212745026U (en) | 2021-03-19 |
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ID=74986465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021599902.9U Active CN212745026U (en) | 2020-08-05 | 2020-08-05 | High-pressure container wall-penetrating lead sealing device and high-pressure container comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212745026U (en) |
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2020
- 2020-08-05 CN CN202021599902.9U patent/CN212745026U/en active Active
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