CN203641504U - Metal hollow O-shaped seal ring - Google Patents
Metal hollow O-shaped seal ring Download PDFInfo
- Publication number
- CN203641504U CN203641504U CN201320516063.3U CN201320516063U CN203641504U CN 203641504 U CN203641504 U CN 203641504U CN 201320516063 U CN201320516063 U CN 201320516063U CN 203641504 U CN203641504 U CN 203641504U
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- Prior art keywords
- seal ring
- ring body
- hollow
- metal
- metal hollow
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Abstract
The utility model discloses a metal hollow O-shaped seal ring which comprises a seal ring body, wherein the seal ring body is a hollow metal annular pipe body, the cross section of the seal ring body is a hollow ring, and holes for mounting and fixing are uniformly formed in the inner side surface of the seal ring body; a silver-coated layer is arranged on the outer side surface of the seal ring body; the holes are waist-shaped holes. The metal hollow O-shaped seal ring is simple and reliable in structure and convenient to mount; in addition, the cost is greatly reduced.
Description
Technical field
The utility model relates to a kind of metal hollow O type seal ring.
Background technique
Nuclear Power Station reactor pressure vessel is the seal container that is placed in nuclear reactor and bears huge operating pressure, also referred to as reactor vessel, is the core in pressurized-water reactor nuclear power plant, is mainly made up of top cover flange and container.During normal reactor operation, in High Temperature High Pressure alternation state, and pressurized container diameter is mostly more than 4 meters, and owing to must sealing completely between run duration top cover flange and container, without any leakage, its sealing station is special.The modes such as current domestic main employing import metal C type ring, metallic nickel rod seal, and this kind of sealing means difficulty of processing is large, complex process.Domestic reactor pressure vessel seal ring mainly adopts import parts, and expensive, cost is high.
Summary of the invention
In order to overcome, the difficulty of processing that exists in sealing configuration in existing reactor pressure vessel is large, complex process and import parts somewhat expensive, high in cost of production shortcoming, and the utility model provides a kind of easy for installation, metal hollow O type seal ring that cost is low.
The technical solution adopted in the utility model is:
Metal hollow O type seal ring, comprises seal ring body, it is characterized in that: the metal ring body that described seal ring body is hollow, the annulus that its cross section is hollow, evenly offers for fixing hole is installed on the inner surface of described seal ring body.
Further, on the outer surface of described seal ring body, be provided with silver plating layer.
Further, described hole is waist-shaped hole.
The raw material of the seal ring described in the utility model adopt nickel-base alloy finished product tubing, and molding mode adopts my the comparatively ripe spiral type processing method of company, process stabilizing.The final plated surface silver layer of O type seal ring.
In actual motion environment, the perforate of O type ring inner side is installed except being convenient to, and plays outside the fixation of metal O type ring, also has self-packing effect.Along with the metal ring body internal pressure of the hollow of the rising metal O type ring of pressure increases, internal volume its pipe outer wall that swells prolongs life to flange both sides, reaches selfsealings effect.
The beneficial effects of the utility model are embodied in: this kind of sealing configuration is simple and reliable, and greatly reduce expense, easy for installation.
Brief description of the drawings
Fig. 1 is the utility model overall structure schematic diagram.
Fig. 2 is A-A sectional view in Fig. 1.
Fig. 3 is B place hole structure schematic diagram in Fig. 1.
Embodiment
Referring to figs. 1 through Fig. 3, metal hollow O type seal ring, comprises seal ring body 1, the metal ring body that described seal ring body 1 is hollow, its cross section is the annulus of hollow, on the inner surface of described seal ring body, evenly offers for hard-wired hole 11.
Further, on the outer surface of described seal ring body 1, be provided with silver plating layer.
Further, described hole 11 is waist-shaped hole.
The raw material of the seal ring described in the utility model adopt nickel-base alloy finished product tubing, and molding mode adopts my the comparatively ripe spiral type processing method of company, process stabilizing.The final plated surface silver layer of O type seal ring.
In actual motion environment, the perforate of O type ring inner side is installed except being convenient to, and plays outside the fixation of metal O type ring, also has self-packing effect.Along with the metal ring body internal pressure of the hollow of the rising metal O type ring of pressure increases, internal volume its pipe outer wall that swells prolongs life to flange both sides, reaches selfsealings effect.
Content described in this specification embodiment is only enumerating of way of realization to inventive concept; protection domain of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model also and conceive the equivalent technologies means that can expect according to the utility model in those skilled in the art.
Claims (3)
1. metal hollow O type seal ring, comprise seal ring body, it is characterized in that: the metal ring body that described seal ring body is hollow, the annulus that its cross section is hollow, evenly offers for fixing hole is installed on the inner surface of described seal ring body.
2. metal hollow O type seal ring as claimed in claim 1, is characterized in that: on the outer surface of described seal ring body, be provided with silver plating layer.
3. metal hollow O type seal ring as claimed in claim 1 or 2, is characterized in that: described hole is waist-shaped hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320516063.3U CN203641504U (en) | 2013-08-22 | 2013-08-22 | Metal hollow O-shaped seal ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320516063.3U CN203641504U (en) | 2013-08-22 | 2013-08-22 | Metal hollow O-shaped seal ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203641504U true CN203641504U (en) | 2014-06-11 |
Family
ID=50872749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320516063.3U Expired - Lifetime CN203641504U (en) | 2013-08-22 | 2013-08-22 | Metal hollow O-shaped seal ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203641504U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470760A (en) * | 2013-08-22 | 2013-12-25 | 宁波天生密封件有限公司 | Hollow metal O-shaped seal ring |
| CN106763777A (en) * | 2017-03-27 | 2017-05-31 | 隆学武 | O-ring seal |
-
2013
- 2013-08-22 CN CN201320516063.3U patent/CN203641504U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470760A (en) * | 2013-08-22 | 2013-12-25 | 宁波天生密封件有限公司 | Hollow metal O-shaped seal ring |
| CN106763777A (en) * | 2017-03-27 | 2017-05-31 | 隆学武 | O-ring seal |
| CN106763777B (en) * | 2017-03-27 | 2019-11-08 | 隆学武 | O-ring seal |
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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 |
Granted publication date: 20140611 |
|
| CX01 | Expiry of patent term |