CN202851941U - Large-diameter alloy O-shaped seal ring - Google Patents
Large-diameter alloy O-shaped seal ring Download PDFInfo
- Publication number
- CN202851941U CN202851941U CN 201220602104 CN201220602104U CN202851941U CN 202851941 U CN202851941 U CN 202851941U CN 201220602104 CN201220602104 CN 201220602104 CN 201220602104 U CN201220602104 U CN 201220602104U CN 202851941 U CN202851941 U CN 202851941U
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- China
- Prior art keywords
- seal ring
- pipe
- sealing
- seal
- arcuate segment
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- Expired - Lifetime
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Abstract
The utility model discloses a large-diameter alloy O-shaped seal ring which comprises at least two seal ring arc sections; the seal ring arc sections have empty cavity structures inside and have certain elasticity; the seal ring arc sections are sequentially connected from head to tail so as to form an annular seal ring; the empty cavity structures in the seal ring are communicated; and welding line regions are formed at the port connecting parts of the seal ring arc sections. According to the utility model, the self-tightening-type 'O'-shaped seal ring can be formed; media in a container or a pipeline can enter a pipe inner cavity; pressure in the container or the pipeline acts on a pipe inner wall, so that a pipe self-tightens, and combining with certain sealing pressure and resilience obtained after the pipe is pressed to be flat, the sealing effect is achieved; the seal ring is suitable for being used in high-pressure media, and compared with the traditional seal element, the sealing performance of the seal ring is greatly improved; and the seal ring is especially suitable for sealing pipe line flanges or containers with large diameters.
Description
Technical field
The utility model relates to a kind of sealing tool, specifically refers to a kind of large diameter ALLOY O V-shaped ring.
Background technique
The hydraulic seal element is to belong to the hydraulic pressure auxiliary in hydraulic system, but also is an indispensable part.In working pressure and certain temperature range, should have good sealability, and along with the increase of pressure can the automatic lifting high sealing performance; Frictional force between seal arrangement and the movement parts is little, and friction factor will be stablized; Anti-corrosion capacity is strong, is difficult for wearing out, and long working life, wear resistance is good, to a certain extent can auto-compensation after the wearing and tearing.The type of seal arrangement has following several: clearance seal, clearance seal are to seal by the micro-gap between the relative movement part fitting surface, are usually used in the cylindrical fit pair of plunger, piston or valve; O-ring seals, O-ring seals is generally made with oil resistant rubber, and its cross section is rounded, and it has good sealability; Lip-type packing, lip-type packing can be divided into Y shape, V-arrangement, U-shaped, L shaped etc. according to the shape in cross section; Sealer with assembled is in the sealing that pipe joint connects, commonly used to three kinds of sealing means such as WD elastic packing, O RunddichtringO and hard sealings.In mechanical seal, seal ring is two ring-shaped work piecess of end face and relative sliding bonded to each other perpendicular to spin axis, it is the main Sealing of swivel joint, bear pressure medium and running shaft, housing friction during operation, the working life of the factor appreciable impact seal rings such as temperature, rotating speed and medium.
In the present sealing original paper, all are solid constructions, utilization has flexible rubber, plastic or other material is made, to seal the joint that original paper is placed on pipeline during use, after the pipeline at two ends was connected with means such as bolts, the sealing original paper between joint produced deformation and realizes sealability, or will seal original paper and cover on outside the joint, utilize the instrument such as buckle to make the sealing original paper be close to the both sides of gap at joint, play the effect of sealing with this.In the present sealing means, the material non-refractory of Sealing uses to be restricted in the environment of high temperature.
The model utility content
The purpose of this utility model is to provide a kind of large diameter ALLOY O V-shaped ring, be adapted at using under high temperature, the high-pressure situations, be specially adapted to the larger container of diameter or piping flange, have than high sealing specific pressure and springback capacity, can reach the requirement of nuclear reactor and petrochemical industry container or piping flange sealing.
The purpose of this utility model is achieved through the following technical solutions:
A kind of large diameter ALLOY O V-shaped ring, the seal ring arcuate segment that comprises at least two joints, seal ring arcuate segment inside is cavity structure, it has certain elasticity, seal ring arcuate segment successively head and the tail is connected to form the annular seal ring, the cavity structure of seal ring inside is communicated with, and the port joint of seal ring arcuate segment forms the weld zone.The seal ring arcuate segment is in the arc-shaped by bending pipes, the internal diameter of every section seal ring arcuate segment is all identical with external diameter, its curvature is identical, but its length can be different, the inside of every section seal ring arcuate segment is cavity structure, a plurality of seal ring arcuate segments join end to end successively and form whole circular seal ring, it is whole that the cavity structure of seal ring inside all is communicated with formation, form the weld zone after the port welding of adjacent both ends seal ring arcuate segment, the polishing moulding, the weld zone has identical or close physical property with the seal ring arcuate segment, purposes after seal ring forms has three kinds: the first kind is common O V-shaped ring, after it was crushed, seal pressure and springback capacity were lower; Equations of The Second Kind is inflation O V-shaped ring, at inner solid material such as dry ice, the azodiisobutyronitrile etc. of filling easily vaporization of metal tube, during use, the packing material distillation, gas expansion produces pressure, and temperature is higher, overpressure is larger, and the compensation Strength of Metallic Materials reduces the seal pressure that causes and descends; The 3rd class is self tightening " O " V-shaped ring, medium in container or the pipeline enters tube cavity, container or manifold pressure act on tube wall, make pipe produce self-tightening, obtain certain seal pressure and resilience after flattening in conjunction with pipe again and reach sealing effect, such seal ring is adapted at using in the high-pressure medium, is specially adapted to the sealing of the larger piping flange of diameter or container.
Described seal ring arcuate segment is made by in nickel-based alloy pipe, copper pipe, Stainless Steel Tube, the monel metal pipe any one.Further, the seal ring arcuate segment is made by nickel-base alloy, nickel-base alloy refers to have a class alloy of higher intensity and certain combination properties such as antioxidant anticorrosive ability under 650～1000 ℃ of high temperature, be subdivided into again Refractoloy according to main performance, abros, the nickel-base antiwear alloy, Ni-based precise alloy and Ni-based marmem etc., refractory alloy is according to the difference of matrix, be divided into iron-base superalloy, nickel base superalloy and cobalt base superalloy, wherein nickel base superalloy is called for short nickel-base alloy, and nickel-base alloy has corrosion-resistant, the characteristics that rebound elasticity is strong, can be used in seal ring, according to the applied environment of reality, material as an alternative also can adopt copper pipe, Stainless Steel Tube, the monel metal pipe is made the seal ring arcuate segment.
Coat or be electroplate with metal layer at described seal ring outer surface.Further, as further improvement of the utility model, the structural type of layer of metal layer is set by the outer surface at seal ring, metal layer can adopt the mode of plating, also can adopt parcel to paste the form of paying, when seal ring is crushed, built-in helical spring produces additional rebounding force to seal ring, and make the metal layer generation plastic deformation of seal ring outer surface, filled up the tiny flaw on flange seal surface, the sealing ring has adopted the cooperation of elasticity and plasticity, makes it have good sealability and compensate because temperature and pressure fluctuates to cause flange distortion and the lax ability of seal ring; Seal ring coats or electroplates the metal layer generation plastic deformation at the seal ring outer surface when being crushed, filled up the tiny flaw on flange seal surface, further improves its sealability.
The utility model compared with prior art has following advantage and beneficial effect:
A kind of large diameter ALLOY O V-shaped ring of 1 the utility model, can form self tightening " O " V-shaped ring, medium in container or the pipeline enters tube cavity, container or manifold pressure act on tube wall, make pipe produce self-tightening, obtain certain seal pressure and resilience after flattening in conjunction with pipe again and reach sealing effect, such seal ring is adapted at using in the high-pressure medium, with respect to traditional sealing original paper, its sealability improves greatly, is specially adapted to the sealing of the larger piping flange of diameter or container;
A kind of large diameter ALLOY O V-shaped ring of 2 the utility model, the characteristics that nickel-base alloy has is corrosion-resistant, rebound elasticity is strong can be used in seal ring, and reasonable in design, reliable performance, technical maturity are feasible, have guaranteed the integrity of pressure boundary;
A kind of large diameter ALLOY O V-shaped ring of 3 the utility model, the structural type of layer of metal layer is set by the outer surface at seal ring, metal layer can adopt the mode of plating, also can adopt parcel to paste the form of paying, when seal ring is crushed, built-in helical spring produces additional rebounding force to seal ring, and make the metal layer generation plastic deformation of seal ring outer surface, filled up the tiny flaw on flange seal surface, the sealing ring has adopted the cooperation of elasticity and plasticity, makes it have good sealability and compensate because temperature and pressure fluctuates to cause flange distortion and the lax ability of seal ring; Seal ring coats or electroplates the metal layer generation plastic deformation at the seal ring outer surface when being crushed, filled up the tiny flaw on flange seal surface, further improves its sealability.
Description of drawings
Fig. 1 is the utility model overall structure schematic representation;
Fig. 2 is that the utility model is along its axial cross-sectional structure schematic representation.
Mark and corresponding component title in the accompanying drawing:
1-seal ring arcuate segment, 2-weld zone, 3-metal layer.
Embodiment
The utility model is described in further detail below in conjunction with embodiment, but mode of execution of the present utility model is not limited to this.
Embodiment
Shown in Fig. 1 to 2, a kind of large diameter ALLOY O V-shaped ring of the utility model, comprise three sections successively seal ring arcuate segments 1 of head and the tail connection, every section seal ring arcuate segment 1 utilizes the nickel-based alloy pipe of thin-walled to bend to circular arc, also can adopt copper pipe, Stainless Steel Tube or the bending of monel metal pipe to form, its inside is cavity structure, forms welding zone 2 in the welding of the joint, end of nickel-based alloy pipe; Electroplate layer of metal layer 3 at the outer surface of seal ring arcuate segment 1, metal layer 3 has certain thickness, also can be with the structural type of parcel so that metal layer 3 pastes pays on seal ring arcuate segment 1 surface.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction, any simple modification, the equivalent variations on every foundation technical spirit of the present utility model above embodiment done all fall within the protection domain of the present utility model.
Claims (3)
1. large diameter ALLOY O V-shaped ring, it is characterized in that: the seal ring arcuate segment (1) that comprises at least two joints, seal ring arcuate segment (1) inside is cavity structure, it has certain elasticity, seal ring arcuate segment (1) successively head and the tail is connected to form the annular seal ring, the cavity structure of seal ring inside is communicated with, and the port joint of seal ring arcuate segment (1) forms weld zone (2).
2. a kind of large diameter ALLOY O V-shaped ring according to claim 1 is characterized in that: described seal ring arcuate segment (1) is made by in nickel-based alloy pipe, copper pipe, Stainless Steel Tube, the monel metal pipe any one.
3. a kind of large diameter ALLOY O V-shaped ring according to claim 1 and 2 is characterized in that: coat or be electroplate with metal layer (3) at described seal ring outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220602104 CN202851941U (en) | 2012-11-15 | 2012-11-15 | Large-diameter alloy O-shaped seal ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220602104 CN202851941U (en) | 2012-11-15 | 2012-11-15 | Large-diameter alloy O-shaped seal ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851941U true CN202851941U (en) | 2013-04-03 |
Family
ID=47983146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220602104 Expired - Lifetime CN202851941U (en) | 2012-11-15 | 2012-11-15 | Large-diameter alloy O-shaped seal ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851941U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279327A (en) * | 2014-10-31 | 2015-01-14 | 柳州市中配橡塑配件制造有限公司 | Specially-shaped sealing ring for automobile |
| WO2016078588A1 (en) * | 2014-11-19 | 2016-05-26 | 中广核工程有限公司 | Nuclear reactor coolant pump and passive stopping seal assembly thereof |
| CN114321378A (en) * | 2021-12-31 | 2022-04-12 | 北京化工大学 | Low-leakage high-flow-resistance built-in channel alloy cast iron elastic sealing structure |
-
2012
- 2012-11-15 CN CN 201220602104 patent/CN202851941U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279327A (en) * | 2014-10-31 | 2015-01-14 | 柳州市中配橡塑配件制造有限公司 | Specially-shaped sealing ring for automobile |
| CN104279327B (en) * | 2014-10-31 | 2017-06-13 | 柳州市中配橡塑配件制造有限公司 | Automobile special-shaped seal ring |
| WO2016078588A1 (en) * | 2014-11-19 | 2016-05-26 | 中广核工程有限公司 | Nuclear reactor coolant pump and passive stopping seal assembly thereof |
| CN114321378A (en) * | 2021-12-31 | 2022-04-12 | 北京化工大学 | Low-leakage high-flow-resistance built-in channel alloy cast iron elastic sealing structure |
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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: 20130403 |
|
| CX01 | Expiry of patent term |