CN201916482U - Gas sealing structure - Google Patents
Gas sealing structure Download PDFInfo
- Publication number
- CN201916482U CN201916482U CN201020696975XU CN201020696975U CN201916482U CN 201916482 U CN201916482 U CN 201916482U CN 201020696975X U CN201020696975X U CN 201020696975XU CN 201020696975 U CN201020696975 U CN 201020696975U CN 201916482 U CN201916482 U CN 201916482U
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- Prior art keywords
- leaf
- sealing
- sealing structure
- flange
- gas sealing
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Abstract
The utility model discloses a gas sealing structure, which comprises two flanges and a leaf-shaped sealing ring, wherein the middle drum-shaped part of the leaf-shaped sealing ring is provided with two concentric circular rings; the upper part and the lower part of the leaf-shaped sealing ring are provided with two leaves respectively; each of the two flanges is provided with a circular sealing groove; the leaf-shaped sealing ring is arranged on one flange with a sealing groove; a sealing groove on the other flange is pressed on the leaf-shaped sealing ring; and the periphery of the sealing groove is fastened by a fastening device. In the gas sealing structure provided by the utility model, the defects of high cost of double sealing rings or a single sealing ring, high leakage rate, complex part machining, poor generality and the like are overcome; and the gas sealing structure has the advantages of simple structure, good sealing effect, easiness in machining, strong generality and the like.
Description
Technical field
The utility model relates to a kind of gas sealing structure, especially relates to a kind of can being widely used in SF6 gas as the gas sealing structure on the electrical products of insulating medium.
Background technique
Traditional with the switch of SF6 gas as insulating medium, lightning arrester, mutual inductor, the O RunddichtringO is selected in the sealing of products such as transformer usually for use, and it is corresponding that what be mated is seal groove and sealing surface; In order to increase sealing and reliability, be generally the double density seal or single seal ring adds sealer, cost height, leakage rate height; Because existing seal groove has sealing surface again, so part processing is comparatively complicated, versatility is not strong simultaneously.
Summary of the invention
In order to overcome above-mentioned defective, the claimant improves and has invented a kind of gas sealing structure through further investigation; It has simple in structure, and good sealing effect is easy to processing, advantages such as highly versatile.
A kind of gas sealing structure of the present utility model, its technological scheme is: comprise two flanges, a leaf seal ring; Have seal groove on the described flange, equally also have seal groove on described another flange; Described leaf seal ring is placed in the described seal groove, the seal groove of described another flange is pressed on this leaf seal ring, carry out fastening with securing means around.
Wherein, drum type partly is two concentric circles rings in the middle of the described leaf seal ring.
Wherein, two leaf lobes are arranged above the described leaf seal ring.
Wherein, also have two leaf lobes below the described leaf seal ring.
Wherein, described securing means is a bolt, nut.
By technique scheme, can constitute the core of a kind of gas sealing structure of the utility model.A kind of gas sealing structure of the utility model of constituting of technological scheme thus, year leak rate be well below 0.5%, is higher than 1% year leak rate of GB and the standard code of international electrical equipment ATSC Advanced Television Systems Committee.SF6 gas is a kind of as greenhouse gases, the reduction of its leak rate, and the Security that improves electrical equipment has high practical significance to the protection environment! On the both sides sealing flange of sealed container, because of having the identical seal groove of size, its versatility will be much higher than the component that existing seal groove has sealing surface again simultaneously.
Description of drawings
Fig. 1 is the part sectional view of a kind of gas sealing structure of the utility model.
Fig. 2 is the sectional arrangement drawing of a kind of gas sealing structure of the utility model.
Fig. 3 is leaf seal ring 3 plan views of a kind of gas sealing structure of the utility model.
Fig. 4 is the leaf seal ring A-A position sectional view of a kind of gas sealing structure of the utility model.
Embodiment
Further a kind of gas sealing structure of the utility model is further described below in conjunction with accompanying drawing.
When the device of internal memory gas, when needs seal two junction surfaces, these two faces can be made the circular flange structure, flange 1, flange 2 sees also Fig. 1: have circular seal groove 4 on flange 1, have circular seal groove 5 on the flange 2; Then leaf seal ring 3 as shown in Figure 3 is placed in the circular seal groove of being opened on the flange 14, then the circular seal groove 5 on another flange 2 is pressed on this leaf seal ring 3, use securing means 6 fastening around; Securing means can be the device that bolt, nut etc. can play fastening effect.
As shown in Figure 2: in device when being full of pressurized gas, two leaf lobes 8 and leaf lobe 9 or leaf lobe 10 and leaf lobe 11 near the high pressure air side expand outwardly, and form the sealing of first road; In the middle drum type part of leaf seal ring, promptly donut 12, donut 7 have formed the sealing of second road under the compression of seal groove 4, seal groove 5; The sealing area of second road sealing is greater than first road; In the interception through the sealing of first road, the pressure that adds the gas of second road sealing will reduce greatly, and enlarge second road sealing of sealing area, will prevent leaking outside of gas completely.
Be understandable that above mode of execution only is the illustrative embodiments that adopts for the principle that a kind of gas sealing structure of the utility model is described; Yet the utility model is not limited thereto; For those skilled in the art; all for reaching the purpose of this utility model; realize function of the present utility model; under the situation that does not break away from the utility model spirit and essence; can make various modification and improvement to each technical characteristicss of technical solutions of the utility model and fit thereof etc.; these modification and improvement also are considered as content of the present utility model, belong to protection domain of the present utility model.
Claims (5)
1. a gas sealing structure comprises flange (1), and flange (2) is characterized in that also comprising leaf seal ring (3); Have circular seal groove (4) on the described flange (1), have circular seal groove (5) on the described flange (2); Described leaf seal ring (3) is placed in the described seal groove (4), and the seal groove (5) of described flange (2) is pressed on the described leaf seal ring (3), uses securing means (6) to carry out fastening around.
2. a kind of gas sealing structure as claimed in claim 1 is characterized in that the middle drum type of described leaf seal ring (3) partly is donut (12), donut (7).
3. as described any one gas sealing structure of claim 1-2, it is characterized in that also having leaf lobe (8), leaf lobe (9) above the described leaf seal ring (3).
4. as described any one gas sealing structure of claim 1-2, it is characterized in that also having leaf lobe (10), leaf lobe (11) below the described leaf seal ring (3).
5. a kind of gas sealing structure as claimed in claim 1 is characterized in that described securing means (6) is a bolt, nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020696975XU CN201916482U (en) | 2010-12-31 | 2010-12-31 | Gas sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020696975XU CN201916482U (en) | 2010-12-31 | 2010-12-31 | Gas sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201916482U true CN201916482U (en) | 2011-08-03 |
Family
ID=44416279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020696975XU Expired - Lifetime CN201916482U (en) | 2010-12-31 | 2010-12-31 | Gas sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201916482U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361379A (en) * | 2017-12-29 | 2018-08-03 | 中国船舶工业集团公司第七0八研究所 | A kind of non-round flange face cone type fluid seals technology of large size |
-
2010
- 2010-12-31 CN CN201020696975XU patent/CN201916482U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361379A (en) * | 2017-12-29 | 2018-08-03 | 中国船舶工业集团公司第七0八研究所 | A kind of non-round flange face cone type fluid seals technology of large size |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110803 |