CN103178467A - SF6 (sulfur hexafluoride) gas chamber sealing method of combined electric appliance - Google Patents
SF6 (sulfur hexafluoride) gas chamber sealing method of combined electric appliance Download PDFInfo
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- CN103178467A CN103178467A CN 201310080064 CN201310080064A CN103178467A CN 103178467 A CN103178467 A CN 103178467A CN 201310080064 CN201310080064 CN 201310080064 CN 201310080064 A CN201310080064 A CN 201310080064A CN 103178467 A CN103178467 A CN 103178467A
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- flanges
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Abstract
The invention discloses an SF6 (sulfur hexafluoride) gas chamber sealing method of a combined electric appliance. The SF6 gas chamber sealing method includes: (1) integrally welding two flanges respectively with adjacent gas chambers; (2) arranging two basin-type insulators between the two flanges in the step (1), respectively connecting the two basin-type insulators with the two flanges, respectively arranging annular sealing rings between the two basin-type insulators as well as between the basin-type insulators and the two flanges; and (3) utilizing long bolts to simultaneously penetrate the two flanges and the two basin-type insulators via long bolts before fastening. By mounting one sealing ring between each basin-type insulator and each flange, and utilizing the long bolts on the outer circle of the flanges to simultaneously penetrate the two flanges and the two basin-type insulators before fastening, good isolation sealing effect is reached; and during maintenance, only the corresponding basin-type insulator needs to be removed to recover the SF6 gas in the gas chamber. By the SF6 gas chamber sealing method, operation time under abnormal mode of equipment is shortened, and operation reliability of the equipment and a power grid is improved.
Description
Technical field
The invention belongs to check man's technology field, particularly a kind of combined electrical apparatus SF6 air chamber sealing method.
Background technology
As everyone knows, the combined electrical apparatus complex structure, comprise: circuit breaker, isolating switch, instrument transformer, lightning arrester, coupling capacitor, take out plurality of devices such as pressing PT, therefore the quantity of SF6 gas air chamber is also more, the SF6 air chamber of distinct device is because function is different, SF6 gas rated pressure is not identical yet, and (for example: circuit breaker, isolating switch close circuit and produce electric arc due to the pass in operating process, in order to reach reliable arc quenching effect, the SF6 gas rated pressure of circuit breaker, isolating switch place air chamber is relatively high; Lightning arrester, instrument transformer are relatively static, even do not exist to close in operating process yet and close circuit, owing to not producing electric arc, so the SF6 gas rated pressure of lightning arrester, instrument transformer place air chamber is relatively low), this sealing property to SF6 gas air chamber has proposed stricter requirement.at present, the isolating seal of combined electrical apparatus SF6 gas air chamber is mainly to realize by disc insulator, disc insulator is mainly being born the insulation against ground effect, when some air chambers need to overhaul or disc insulator insulation reduces and breakdown when needing to change, after just must be all emptying the SF6 gas in adjacent 2 air chambers, easily cause non-fault gas chamber to be forced to owing to getting involved out of service, simultaneously due to the SF6 gas in air chamber by all emptying, moisture in air will directly cause the components and parts in air chamber to make moist, not only strengthened the workload of maintenance, also have influence on the reliability service of equipment.
Summary of the invention
The invention provides a kind of combined electrical apparatus SF6 air chamber sealing method that can alleviate maintenance workload and not affect the equipment reliability service.
A kind of combined electrical apparatus SF6 air chamber sealing method comprises the following steps:
(1), two flanges are welded as a whole with adjacent air chamber respectively;
(2), be arranged in step (1) between two flanges with two disc insulators, and be connected with two flanges respectively, between two disc insulators and between disc insulator and flange, O-ring seal be set respectively;
(3), run through simultaneously fastening after described two flanges and two disc insulators with stay bolt;
difference unique before combined electrical apparatus SF6 air chamber sealing method of the present invention and improvement is that a disc insulator has been installed between two flanges more, after disc insulator and flange among are installed an O-ring seal, run through simultaneously fastening after these two flanges and two disc insulators by equally distributed stay bolt on the circumference of flange outer ring, thereby reach good isolating seal effect, like this, when some air chambers need to overhaul, after black stay bolt in removing figure, the SF6 gas that only needs to remove corresponding with it disc insulator and reclaim this air chamber gets final product, equally, when some disc insulators need maintenance when (replacings), only need to reclaim the interior SF6 gas of corresponding air chamber with it and remove this disc insulator and get final product.The present invention is directed to identical be operated in improvement after, workload reduces half, operating efficiency can improve 60% left and right.Greatly shorten the running time under the improper mode of equipment, greatly improved the reliability of equipment and operation of power networks.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is front view of the present invention.
Embodiment
As shown in Figure 1, combined electrical apparatus SF6 air chamber sealing method of the present invention comprises the following steps:
(1), two flanges are welded as a whole with adjacent air chamber respectively;
(2), be arranged in step (1) between two flanges with two disc insulators, and be connected with two flanges respectively, between two disc insulators and between disc insulator and flange, O-ring seal be set respectively;
(3), run through simultaneously fastening after described two flanges and two disc insulators with stay bolt.
air chamber 1 and flange 1 in figure, air chamber 2 and flange 2 are still respectively by being welded into one, between disc insulator 1 and flange 1, after disc insulator 2 is installed an annular " O " RunddichtringO with flange 2 amongs, by equally distributed bolt on flange inner ring circumference disc insulator 1, disc insulator 2 is separately fixed on flange 1 and flange 2, at disc insulator 1, a same annular " O " RunddichtringO of installing between disc insulator 2, run through simultaneously fastening after these two flanges and two disc insulators by equally distributed stay bolt on the circumference of flange outer ring.Thereby reach good isolating seal effect (in figure, dash area is stay bolt).
difference unique before combined electrical apparatus SF6 air chamber sealing method of the present invention and improvement is that a disc insulator has been installed between two flanges more, after disc insulator and flange among are installed an annular RunddichtringO, run through simultaneously fastening after these two flanges and two disc insulators by equally distributed stay bolt on the circumference of flange outer ring, thereby reach good isolating seal effect, like this, when some air chambers need to overhaul, after black stay bolt in removing figure, the SF6 gas that only needs to remove corresponding with it disc insulator and reclaim this air chamber gets final product, equally, when some disc insulators need maintenance when (replacings), only need to reclaim the interior SF6 gas of corresponding air chamber with it and remove this disc insulator and get final product.The present invention is directed to identical be operated in improvement after, workload reduces half, operating efficiency can improve 60% left and right.Greatly shorten the running time under the improper mode of equipment, greatly improved the reliability of equipment and operation of power networks.
Claims (1)
1. combined electrical apparatus SF6 air chamber sealing method is characterized in that: comprise the following steps:
(1), two flanges are welded as a whole with adjacent air chamber respectively;
(2), be arranged in step (1) between two flanges with two disc insulators, and be connected with two flanges respectively, between two disc insulators and between disc insulator and flange, O-ring seal be set respectively;
(3), run through simultaneously fastening after described two flanges and two disc insulators with stay bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310080064 CN103178467A (en) | 2013-03-14 | 2013-03-14 | SF6 (sulfur hexafluoride) gas chamber sealing method of combined electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310080064 CN103178467A (en) | 2013-03-14 | 2013-03-14 | SF6 (sulfur hexafluoride) gas chamber sealing method of combined electric appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103178467A true CN103178467A (en) | 2013-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310080064 Pending CN103178467A (en) | 2013-03-14 | 2013-03-14 | SF6 (sulfur hexafluoride) gas chamber sealing method of combined electric appliance |
Country Status (1)
| Country | Link |
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| CN (1) | CN103178467A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762737A (en) * | 2016-04-11 | 2016-07-13 | 北京良乡昊融电力设备有限公司 | Micro-positive pressure system for separated-phase enclosed busbar and micro-positive pressure implementation method |
| CN108933003A (en) * | 2018-07-19 | 2018-12-04 | 河北环亚线缆有限公司 | A kind of super-pressure insulating gas pipeline cable |
| CN112636231A (en) * | 2020-12-14 | 2021-04-09 | 河南平高通用电气有限公司 | Inflation switch equipment and middle air chamber plugging device and voltage transformer thereof |
-
2013
- 2013-03-14 CN CN 201310080064 patent/CN103178467A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762737A (en) * | 2016-04-11 | 2016-07-13 | 北京良乡昊融电力设备有限公司 | Micro-positive pressure system for separated-phase enclosed busbar and micro-positive pressure implementation method |
| CN108933003A (en) * | 2018-07-19 | 2018-12-04 | 河北环亚线缆有限公司 | A kind of super-pressure insulating gas pipeline cable |
| CN108933003B (en) * | 2018-07-19 | 2024-02-27 | 河北环亚线缆有限公司 | Ultrahigh-voltage insulating gas pipeline cable |
| CN112636231A (en) * | 2020-12-14 | 2021-04-09 | 河南平高通用电气有限公司 | Inflation switch equipment and middle air chamber plugging device and voltage transformer thereof |
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Application publication date: 20130626 |