CN209587143U - A kind of pressurized type gasket - Google Patents
A kind of pressurized type gasket Download PDFInfo
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- CN209587143U CN209587143U CN201920089062.2U CN201920089062U CN209587143U CN 209587143 U CN209587143 U CN 209587143U CN 201920089062 U CN201920089062 U CN 201920089062U CN 209587143 U CN209587143 U CN 209587143U
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- metal parts
- bed course
- gap
- pressurized type
- type gasket
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Abstract
The utility model discloses a kind of pressurized type gaskets, including cricoid metal parts and several conduits.The upper surface and lower end surface of metal parts are equipped with the flexible material layer that hardness is less than metal parts, and the middle part of metal parts is equipped with cricoid gap.The outer edge of metal parts seals, and each conduit connects metal parts and is communicated in gap.When in being tightly connected for flange etc., high pressure matter is filled with into gap using conduit, and then gasket expands gap and compresses the two sides of metal parts outward, provides good sealability.Flexible material layer can be further improved sealability, and reduction is damaged caused by equipment and instrument during gasket seal.Gasket sealing force can be effectively controlled by controlling pressurising pressure, and then proposes realization sealing controllability.Further, the inside edge of metal parts is also sealed, can be avoided while realizing effectively sealing to the influence inside pipeline.This utility model is used for mechanical seal field.
Description
Technical field
The utility model relates to mechanical seal fields, more particularly to a kind of pressurized type gasket.
Background technique
Gasket for the mechanical seal between two objects, usually to prevent from being under pressure between two objects, burn into
Pipeline expands with heat and contract with cold caused leakage naturally, and gasket seal occupies critically important status in modern industrial enterprises, sealing
Quality is directly related to continuous, property safe, energy saving and environmentally friendly and people the physical and mental health of production, therefore the hair of gasket
Exhibition is increasingly valued by people.With modern industry especially modern age petroleum, chemical industry, atomic energy industry, large-scale electricity
The rise stood, pressure vessel develop to high temperature, high pressure, high vacuum, deep cooling and enlargement, polyphyly column direction, not to gasket seal
It is disconnected to propose new requirement.
Current gasket is mostly compressed using external force, is mostly the pretightning force using bolt generally in flanged joint
It acts on gasket.External force makes gasket itself that elasticity or plastic deformation occur, microcosmic uneven on sealing surface to fill up
To realize sealing.The seal degree that gasket rises largely determined by the pretightning force of bolt, but in practical application
In, often due to gasket corrosion or bolt looseness, connecting portion compression external force occurs not enough to be caused to leak gasket.And it excessively twists
Tight bolt is easily damaged gasket, even results in bolt and kills, can not dismantle.And it is softer for flange material, more crisp in the case where,
The seal request for being difficult to meet gasket is compressed by single bolt pretightning force.
Utility model content
The purpose of this utility model is to provide a kind of practical, safe and reliable pressurized type gaskets.
Technical solution adopted in the utility model is: a kind of pressurized type gasket, including cricoid metal parts and several
Conduit, the upper surface and lower end surface of metal parts are equipped with the flexible material layer that hardness is less than metal parts, set in metal parts
There are cricoid gap, the outer edge sealing of metal parts, each conduit connects metal parts and is communicated in gap.
As an improvement of the above scheme, the inside edge sealing of metal parts.
As an improvement of the above scheme, chamber is equipped in metal parts, chamber is located at conduit and the link position in gap.
As an improvement of the above scheme, metal parts includes the first bed course and the second bed course of overlapping, the first bed course and the
The outer edge of two bed courses is equipped with the first sealing edge, forms gap between the first bed course and the second bed course.
As an improvement of the above scheme, the inside edge of the first bed course and the second bed course is equipped with the second sealing edge.
As an improvement of the above scheme, the first sealing edge and the second sealing are along being fixed by welding to the first bed course and the
Between two bed courses.
As an improvement of the above scheme, flexible material layer is graphite.
As an improvement of the above scheme, the upper surface and lower end surface of metal parts are equipped with several protrusions.
As an improvement of the above scheme, protrusion is annular, each radially even distribution of protrusion.
As an improvement of the above scheme, each conduit is respectively connected with connector far from one end of metal parts.
The utility model has the beneficial effects that when in being tightly connected for flange etc., being utilized by this pressurized type gasket
Conduit is filled with high pressure gas or highly pressurised liquid into gap, and then expanding gap compresses the two sides of metal parts outward, is
Connection provides good sealability, and can be further improved sealing energy using the flexible material layer on metal parts two sides
Power, reduction are damaged caused by equipment and instrument during gasket seal, can effectively control gasket by controlling pressurising pressure
Sealing force, and then realization sealing controllability is proposed, it is possible to prevente effectively from leakage accident；Further, to the inside edge of metal parts
Also it is sealed, it can influence while realizing effectively sealing, when avoiding gasket filling pressure sealing to internal pipeline.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawing:
Fig. 1 is the schematic diagram of the section structure of the first pressurized type gasket；
Fig. 2 is the schematic diagram of the section structure of second of pressurized type gasket；
Fig. 3 is the schematic diagram of the section structure that the pressurized type gasket is used for flanged joint.
Specific embodiment
Referring to Fig.1~Fig. 3, the utility model are a kind of pressurized type gasket, including cricoid metal parts and several conduits
42.Metal parts is generally annular shape, and material generally can be steel, aluminium, copper, nickel etc..In the upper surface and lower end of metal parts
Face be equipped with hardness be less than metal parts flexible material layer 2, flexible material layer 2 can be hardness it is softer, have certain deformation
The some metal materials or nonmetallic materials of ability, but need that there is certain cementability with metal parts.Metal parts
Middle part is equipped with cricoid gap, and the outer edge of metal parts seals.It, can be from metal parts when metal parts is integrated
Inside edge to the crosscutting formation gap of outer edge.It, can be by welding or being tightly connected when metal parts is double-layer structure
The outer edge of double-layer structure forms outer edge sealing, and gap is formed between double-layer structure.Each conduit 42 passes through metal parts simultaneously
It is communicated in gap, high pressure gas or highly pressurised liquid can be filled in gap.When being connected for pipe flange 5, high pressure
Gas and highly pressurised liquid generally select the substance consistent with pipeline transport agent, or do not impact to pipeline transport agent
Substance.General conduit 42 is uniformly distributed perpendicular to metal parts, and along ring-type.Connector is connected in the other end of conduit 42
43, there are sealing ring or sealing ring on connector 43, for connecting external high pressure device.
As preferred embodiment, the inside edge of metal parts is sealed.The high pressure gas in gap is filled with by conduit 42
It will not be flowed out by inside edge or outer edge with highly pressurised liquid, for avoiding when the connection of pipe flange class to high pressure gas and height
Inside press liquid flow ipe.
As preferred embodiment, flexible material layer 2 is graphite.Graphite as soft material, can provide thermostabilization,
Self-lubricating, corrosion resistant effect, and then optimize the pressurized type gasket.
As preferred embodiment, it is equipped with chamber 41 in metal parts, chamber 41 is located at the connection of conduit 42 and gap
At position.General chamber 41 is also ring-type, and general conduit 42 is all located on the same side of metal parts.The circumferential row of each conduit 42
Cloth and apart from uniform, and it is connected to chamber 41, effective transferring high voltage gas or liquid in gap.Also, chamber 41 can be with
Gas savings are provided for pressurized type gasket, play certain buffer function.
As preferred embodiment, the upper surface and lower end surface of metal parts are equipped with several protrusions.Protrusion can be
It mitigates, can be section is triangle, but should not exceed the surface of flexible material layer 2.Ditch is formed between protrusion and protrusion
Slot, groove are that connection flexible material layer 2 provides grasp, and effectively promotes the pressure conduction in gap.When metal parts is
When circular, the different circular ring shape of several diameters can be set into groove for protrusion.
In example 1, metal parts includes the first bed course 11 and the second bed course 12 of overlapping.First bed course 11 and
The outer edge of two bed courses 12 carries out welding and forms the first sealing along 31, and gap is between the first bed course 11 and the second bed course 12.
First bed course 11 and the second bed course 12 are annulus, and section projected size is consistent.Each protrusion is annular shape, and respectively
It is distributed from inside edge to outer edge.Flexible material layer 2 is graphite, and ultimately forms the upper surface and lower end surface of pressurized type gasket
It is smooth graphite.Cricoid chamber 41 is equipped at the link position in conduit 42 and gap, chamber 41 is in vertical direction
Width is no more than the thickness of the first bed course 11 and the second bed course 12.The flange 5 pressurized type gasket being used at pipeline generic port
In connection, 42 position of conduit is corresponded on flange 5 and is provided with several hole slots.General conduit 42 is removably, to tear open with connector 43
It unloads the connector 43 on conduit 42 and passes through the reconnection connector 43 of flange 5.Pressurized type gasket is placed between two flanges 5, method is tightened
The bolt of 5 connection of orchid.Connector 43 is connected in high-pressure installation, since pressurized type gasket inside edge is unclosed, high pressure after connection
Gas or highly pressurised liquid, which have part, to be escaped in pipeline, and substance identical with pipeline transport agent, or selection are typically chosen
The substance of pipeline transport agent is not influenced.Inert gas is selected in the present embodiment.
After the connection for completing flange 5, high-pressure installation is opened, inert gas enters gap via chamber 41 by conduit 42
In.The pressure of first bed course 11 and the second bed course 12 by gap mesohigh inert gas at this time, struts outward.At this time, it fills
The upper surface of pressure type gasket and the graphite linings of lower end surface compress the flange 5 of respective one end respectively, and since graphite has centainly
Elastic deformation ability, and then improve sealability.By adjusting the pressure of inert gas, it can be effectively reduced or increase
The sealability of pressurized type gasket.
In example 2, metal parts includes the first bed course 11 and the second bed course 12 of overlapping.To the first bed course 11 with
The outer edge of second bed course 12 and inside edge carry out welding and are respectively formed the first sealing along 31 second sealings along 32, and gap is located at the
Between one bed course 11 and the second bed course 12.First bed course 11 and the second bed course 12 are annulus, and section projected size is consistent.
Flexible material layer 2 is graphite, and the upper surface and lower end surface of pressurized type gasket are smooth graphite.In the company of conduit 42 and gap
It connects and is equipped with cricoid chamber 41 at position, chamber 41 is no more than the first bed course 11 and the second bed course 12 in the width of vertical direction
Thickness.Pressurized type gasket is placed between two flanges 5, the bolt of the connection of flange 5 is tightened.Connector 43 is connected to high-pressure installation
In, since pressurized type gasket outer edge and inside edge are all closed, high pressure gas or highly pressurised liquid will not be escaped into pipeline after connection
Or in the external world, it is possible to selection high pressure gas or highly pressurised liquid as needed.
After the connection for completing flange 5, high-pressure installation is opened, leads to inert gas by conduit 42 and enters gap via chamber 41
In.The pressure of first bed course 11 and the second bed course 12 by gap mesohigh inert gas at this time, due to inside edge and outer edge
Closing, the first bed course 11 and 12 middle section of the second bed course strut outward.At this time, the upper surface and lower end surface of pressurized type gasket
Graphite linings compress the flange 5 of respective one end respectively, and since graphite has certain elastic deformation ability, and then improve
Sealability.By adjusting the pressure of inert gas, the sealability of pressurized type gasket is can be effectively reduced or increased.It can be with
Sensor is set at 5 link position of flange, and is connected the sensor in processor.Sensor is generally some gases and passes
Sensor or pressure sensor can be used to detect leakage.Simultaneously processing will be connected to the high-pressure installation of pressurized type gasket pressure supply
In device, and then when sensor detects leakage, processor can issue pressurization command to high-pressure installation.And then it is pressurized in gap
Power becomes larger, and the first bed course 11 and the second bed course 12 strut more outward.The upper surface of pressurized type gasket and the graphite linings of lower end surface
The flange 5 of respective one end is compressed respectively, and then reinforces sealing until sensor will not detect leakage.
Certainly, the design creation is not limited to above embodiment, and the combination of the various embodiments described above different characteristic can also
To reach good effect.Those skilled in the art can also make without departing from the spirit of the present invention
It is all included in the scope defined by the claims of the present application with deformation or replacement, these equivalent variation or replacement.
Claims (10)
1. a kind of pressurized type gasket, it is characterised in that: including cricoid metal parts and several conduits (42), the metal parts
Upper surface and lower end surface be equipped with the flexible material layer (2) that hardness is less than metal parts, ring-type is equipped in the metal parts
Gap, the outer edge sealing of the metal parts, each conduit (42) connection metal parts is simultaneously communicated in gap.
2. pressurized type gasket according to claim 1, it is characterised in that: the inside edge of the metal parts seals.
3. pressurized type gasket according to claim 2, it is characterised in that: be equipped with chamber (41) in the metal parts, institute
Chamber (41) is stated to be located at conduit (42) and the link position in gap.
4. pressurized type gasket according to claim 3, it is characterised in that: the metal parts includes the first bed course of overlapping
(11) it is sealed equipped with first along (31) with the second bed course (12), first bed course (11) and the outer edge of the second bed course (12),
The gap is formed between first bed course (11) and the second bed course (12).
5. pressurized type gasket according to claim 4, it is characterised in that: first bed course (11) and the second bed course (12)
Inside edge be equipped with the second sealing along (32).
6. pressurized type gasket according to claim 5, it is characterised in that: first sealing is along (31) and the second sealing edge
(32) it is fixed by welding between the first bed course (11) and the second bed course (12).
7. pressurized type gasket described according to claim 1~any one of 6, it is characterised in that: the flexible material layer (2) is
Graphite.
8. pressurized type gasket according to claim 7, it is characterised in that: the upper surface and lower end surface of the metal parts are equal
Equipped with several protrusions.
9. pressurized type gasket according to claim 8, it is characterised in that: each protrusion is annular, each protrusion
Radially even distribution.
10. pressurized type gasket according to claim 9, it is characterised in that: each conduit (42) is far from metal parts
One end is respectively connected with connector (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920089062.2U CN209587143U (en) | 2019-01-18 | 2019-01-18 | A kind of pressurized type gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920089062.2U CN209587143U (en) | 2019-01-18 | 2019-01-18 | A kind of pressurized type gasket |
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| Publication Number | Publication Date |
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| CN209587143U true CN209587143U (en) | 2019-11-05 |
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| CN201920089062.2U Active CN209587143U (en) | 2019-01-18 | 2019-01-18 | A kind of pressurized type gasket |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111136558A (en) * | 2020-01-12 | 2020-05-12 | 牛思婷 | Abrasive wheel cutting machine for cutting plates |
-
2019
- 2019-01-18 CN CN201920089062.2U patent/CN209587143U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111136558A (en) * | 2020-01-12 | 2020-05-12 | 牛思婷 | Abrasive wheel cutting machine for cutting plates |
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