CN111146753A - Flange for insulating shielding cylinder - Google Patents
Flange for insulating shielding cylinder Download PDFInfo
- Publication number
- CN111146753A CN111146753A CN202010093749.0A CN202010093749A CN111146753A CN 111146753 A CN111146753 A CN 111146753A CN 202010093749 A CN202010093749 A CN 202010093749A CN 111146753 A CN111146753 A CN 111146753A
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- CN
- China
- Prior art keywords
- ring
- flange
- base
- screw hole
- hole
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
- H02G5/06—Totally-enclosed installations, e.g. in metal casings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
- H02G5/06—Totally-enclosed installations, e.g. in metal casings
- H02G5/063—Totally-enclosed installations, e.g. in metal casings filled with oil or gas
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Insulating Bodies (AREA)
Abstract
The invention relates to a flange for an insulation shielding cylinder, which comprises an outer ring, a middle ring and a base, wherein the outer ring, the middle ring and the base are provided with through holes for an insulation bus to pass through; work as the outer loop with when the zhonghuan installation laminating is fixed, inclined plane one with two positions on inclined plane correspond and constitute a toper ring, set up sealing washer one in the toper ring, sealing washer one extends to the gap of flange through-hole and insulating insulated bus after the inclined plane one of toper ring and two extrusion deformation on inclined plane, can fully laminate with insulating insulated bus surface, and is sealed conscientiously, and simultaneously, the tube-shape extension of outer loop can fully cooperate with external seal portion, makes flange and insulating insulated bus junction sealed more convenient, reliable, greatly increased the leakproofness of insulating shielding section of thick bamboo, greatly reduced shielding section of thick bamboo forms the possibility of flashover, has protected electrical operation's safety.
Description
Technical Field
The invention provides a flange for an insulation shielding cylinder, and belongs to the technical field of transmission equipment accessories and electric power shielding protection application.
Background
The insulation treatment of the insulated bus bar joint is related to the electricity safety of the whole transmission line, and an insulation shielding cylinder is generally used for insulating the insulated bus bar joint.
An insulating shielding section of thick bamboo passes through the flange to be fixed on insulating bus, keep insulating shielding section of thick bamboo internal drying or vacuum with the sealing washer jointly, but because insulating bus surface is not complete level and smooth, cause insulating shielding section of thick bamboo sealed untight, so, after a period, inside moisture or the air admission of having of insulating shielding section of thick bamboo, in case insulating bus surrounding environment humidity is too big, cause the interior air humidity of shielding section of thick bamboo to increase, because of shielding section of thick bamboo inner wall and insulating bus connection tip insulating layer creepage distance is short, form flashover easily, cause circuit fault.
Disclosure of Invention
The invention aims to provide a flange for an insulation shielding cylinder, which solves the problem of untight sealing of the insulation shielding cylinder, and in order to realize the aim, the technical scheme of the invention is as follows:
a flange for an insulation shielding cylinder comprises an outer ring, a middle ring and a base, wherein the outer ring, the middle ring and the base are provided with through holes for insulating buses to pass through, a cylindrical extension part is arranged on the outer side of each outer ring through hole, the inner side surface of each outer ring through hole is provided with a first inclined surface, and the outer side surface of each middle ring through hole is provided with a second inclined surface; when the outer ring is attached to the middle ring, the first inclined plane corresponds to the second inclined plane to form a conical ring, and a first sealing ring is arranged in the conical ring.
A first annular groove is formed in the annular wall on the inner side of the outer ring, and a second sealing ring is arranged between the outer ring and the middle ring; when the outer ring is mounted and attached to the middle ring, the second sealing ring is arranged between the inside of the first annular groove and the outer wall of the middle ring.
An annular groove II is formed in the annular wall on the inner side of the middle ring, and a sealing ring III is arranged between the middle ring and the base; when the middle ring is mounted and attached to the base, the third sealing ring is arranged between the inside of the second annular groove and the outer wall of the base.
The outer edge of the outer ring is symmetrically provided with a first screw hole, the outer edge of the middle ring is symmetrically provided with a second screw hole, the outer edge of the base is symmetrically provided with a third screw hole, and the positions of the first screw hole, the second screw hole and the third screw hole correspond to each other; when the device is installed, the outer ring, the middle ring and the base are tightly fixed by bolts through the first screw hole, the second screw hole and the third screw hole.
And an annular clamping groove is formed in the inner side wall of the base.
And the wall of the base is provided with a pumping/inflating hole.
And an annular convex strip is arranged on the outer wall of the extension part.
The invention has the advantages that: through the effect of the inclined plane I and the inclined plane II of the conical ring arranged on the outer ring and the middle ring, the sealing ring I is extruded and deformed by the inclined plane I and the inclined plane II and then extends to a gap between the flange through hole and the insulated bus, so that the sealing ring I is fully attached to the surface of the insulated bus and is practically sealed, meanwhile, the cylindrical extension part of the outer ring can be fully matched with the outer sealing part, the joint of the flange and the insulated bus is more convenient and reliable to seal, the two points are higher, the sealing performance of the insulated shielding cylinder is greatly increased, the possibility of flashover formed by the shielding cylinder is greatly reduced, and the safety of electrical operation is protected.
Drawings
FIG. 1 is an exploded view of the flange construction of the present invention;
FIG. 2 is a schematic view of a preferred embodiment of the present invention;
in the figure: 1-a flange; 2-an insulating shielding cylinder; 3-an insulated bus; 11-outer ring; 111-screw hole one; 112-an extension; 113-bevel one; 114-a first annular groove; 115-annular ribs; 12-middle ring; 121-screw hole II; 122-annular groove two; 123-inclined plane II; 13-a base; 131-screw hole III; 132-a ring card slot; 133-pumping/inflating holes; 134-air tap; 14-sealing ring one; 15-sealing ring II; 16-sealing ring three.
Detailed Description
The invention discloses a flange for an insulation shielding cylinder, which is shown in figure 1:
the flange 1 comprises an outer ring 11, an intermediate ring 12 and a base 13, wherein the outer ring 11, the intermediate ring 12 and the base 13 are all provided with through holes for the insulating bus 3 to pass through, a first annular groove 114 is formed in the inner side annular wall of one side of the outer ring 11, which is opposite to the intermediate ring 12, a second sealing ring 15 is arranged between the outer ring 11 and the intermediate ring 12, when the outer ring 11 and the intermediate ring 12 are installed, attached and fixed, the second sealing ring 15 is arranged between the first annular groove 114 and the outer wall of the intermediate ring 12, and the arrangement of the second sealing ring 15 can increase the air tightness between the outer ring 11 and.
Similarly, an inner side annular wall of the middle ring 12 opposite to the base 13 is provided with a second annular groove 122, a third sealing ring 16 is arranged between the middle ring 12 and the base 13, and when the middle ring 12 and the base 13 are mounted, attached and fixed, the third sealing ring 16 is arranged between the inner side of the second annular groove 122 and the outer wall of the base 13 to increase the air tightness between the middle ring 12 and the base 13.
The outer edge of the outer ring 11 is symmetrically provided with a first screw hole 111, the outer edge of the middle ring 12 is symmetrically provided with a second screw hole 121, the outer edge of the base 13 is symmetrically provided with a third screw hole 131, and the positions of the first screw hole 111, the second screw hole 121 and the third screw hole 131 correspond to each other; when the flange is installed, the outer ring 11, the middle ring 12 and the base 13 are tightly fixed by bolts through the first screw hole 111, the second screw hole 121 and the third screw hole 131, and the second sealing ring 15 and the sealing ring 16 ensure the air tightness of the flange 1.
As shown in fig. 1 and fig. 2, an annular groove 132 is disposed on an inner side wall of the base 13, and a wall of the insulation shielding cylinder 2 can be inserted into the annular groove 132, and the insulation shielding cylinder 2 is firmly adhered to the base 13 by glue.
In order to ensure the air tightness between the insulated bus 3 and the flange 1, preferably, the inner side surface of the through hole of the outer ring 11 is provided with a first inclined surface 113, the outer side surface of the through hole of the middle ring 12 is provided with a second inclined surface 123, when the outer ring 11 is fixedly attached to the middle ring 12, the first inclined surface 113 corresponds to the second inclined surface 123 to form a conical ring, a first sealing ring 14 is arranged in the conical ring, the outer ring 11, the first sealing ring 14, a sealing ring 15, the middle ring 12, a sealing ring 16 and a base 13 are sequentially sleeved on the insulated bus 3, when a bolt tightly fixes the outer ring 11, the middle ring 12 and the base 13 through a first screw hole 111, a second screw hole 121 and a third screw hole 131, the first inclined surface 113 and the second inclined surface 123 of the conical ring formed when the outer ring 11 is fixedly attached to the middle ring 12 can extrude the first sealing ring 14, and the first inclined surface 113 and the, the first sealing ring 14 is forced to extend to a gap between the through hole of the flange 1 and the insulated bus 3 after being extruded and deformed, so that the gap between the through hole of the flange 1 and the uneven surface of the insulated bus 3 is filled, and real sealing is realized.
In order to further ensure the air tightness between the insulated bus 3 and the flange 1, preferably, a cylindrical extension portion 112 matched with the outer diameter of the insulated bus is arranged outside the through hole of the outer ring 11, so that a thermoplastic sealing material (a heat-shrinkable sleeve or thermosol) can completely wrap the flange 1 and the insulated bus 3, further, an annular convex strip 115 is arranged on the outer wall of the extension portion 112, and the thermoplastic sealing material is ensured not to fall off from the extension portion 112 after being cooled, so that the sealing performance of the joint of the insulated bus 3 is further enhanced.
In the embodiment shown in fig. 2, the wall of the base 13 is provided with a pumping/inflating hole 133, and a gas nozzle 134 is installed at the pumping/inflating hole 133, so as to pump vacuum inside the insulation shielding cylinder 2 and fill the insulation shielding cylinder 2 with insulation gas, or a gas valve is connected at the pumping/inflating hole 133 to monitor the sealing state inside the insulation shielding cylinder 2.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. That is, all equivalent changes and modifications made according to the content of the claims of the present invention should be within the technical scope of the present invention.
Claims (7)
1. A flange for an insulating and shielding cylinder, comprising an outer ring (11), an intermediate ring (12) and a base (13) each having a through hole for passing an insulated bus bar (3), characterized in that: a cylindrical extension part (112) is arranged on the outer side of the through hole of the outer ring (11), the inner side surface of the through hole of the outer ring (11) is provided with a first inclined surface (113), and the outer side surface of the through hole of the middle ring (12) is provided with a second inclined surface (123); when the outer ring (11) is mounted and attached to the middle ring (12), the first inclined surface (113) corresponds to the second inclined surface (123) in position and forms a conical ring, and a first sealing ring (14) is arranged in the conical ring.
2. A flange for an insulation shield can according to claim 1, wherein: a first annular groove (114) is formed in the annular wall on the inner side of the outer ring (11), and a second sealing ring (15) is arranged between the outer ring (11) and the middle ring (12); when the outer ring (11) is installed and jointed with the middle ring (12), the second sealing ring (15) is arranged between the inner side of the first annular groove (114) and the outer wall of the middle ring (12).
3. A flange for an insulation shield can according to claim 1, wherein: a second annular groove (122) is formed in the annular wall on the inner side of the middle ring (12), and a third sealing ring (16) is arranged between the middle ring (12) and the base (13); when the middle ring (12) is attached to the base (13), the third sealing ring (16) is arranged between the inner side of the second annular groove (122) and the outer wall of the base (13).
4. A flange for an insulation shield can according to claim 1, wherein: the outer edge of the outer ring (11) is symmetrically provided with a first screw hole (111), the outer edge of the middle ring (12) is symmetrically provided with a second screw hole (121), the outer edge of the base (13) is symmetrically provided with a third screw hole (131), and the positions of the first screw hole (111), the second screw hole (121) and the third screw hole (131) correspond to each other; when the device is installed, the outer ring (11), the middle ring (12) and the base (13) are tightly fixed through the screw hole I (111), the screw hole II (121) and the screw hole III (131) by bolts.
5. A flange for an insulating shielding cylinder according to claim 1 or 2 or 3 or 4, characterized in that: and an annular clamping groove (132) is formed in the inner side wall of the base (13).
6. A flange for an insulating shielding cylinder according to claim 1 or 2 or 3 or 4, characterized in that: the wall of the base (13) is provided with a pumping/inflating hole (133).
7. A flange for an insulating shielding cylinder according to claim 1 or 2 or 3 or 4, characterized in that: an annular convex strip (115) is arranged on the outer wall of the extension part (112).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010093749.0A CN111146753A (en) | 2020-02-14 | 2020-02-14 | Flange for insulating shielding cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010093749.0A CN111146753A (en) | 2020-02-14 | 2020-02-14 | Flange for insulating shielding cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111146753A true CN111146753A (en) | 2020-05-12 |
Family
ID=70527397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010093749.0A Pending CN111146753A (en) | 2020-02-14 | 2020-02-14 | Flange for insulating shielding cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111146753A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111786328A (en) * | 2020-06-30 | 2020-10-16 | 南京三乐集团有限公司 | Flange plate for fixing space traveling wave tube high-voltage cable |
-
2020
- 2020-02-14 CN CN202010093749.0A patent/CN111146753A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111786328A (en) * | 2020-06-30 | 2020-10-16 | 南京三乐集团有限公司 | Flange plate for fixing space traveling wave tube high-voltage cable |
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