CN207213148U - A kind of corrugated self-fastening formula gasket seal of resistance to temperature change - Google Patents
A kind of corrugated self-fastening formula gasket seal of resistance to temperature change Download PDFInfo
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- CN207213148U CN207213148U CN201720986328.4U CN201720986328U CN207213148U CN 207213148 U CN207213148 U CN 207213148U CN 201720986328 U CN201720986328 U CN 201720986328U CN 207213148 U CN207213148 U CN 207213148U
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- Prior art keywords
- corrugated plating
- corrugated
- gasket seal
- temperature change
- resistance
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Abstract
The utility model discloses a kind of corrugated self-fastening formula gasket seal of resistance to temperature change, including the first corrugated plating, first corrugated plating and the second corrugated plating superposition forms fitting body, and first the outer ring edge of corrugated plating outer ring edge and the second corrugated plating be welded and fixed, medium is provided with the inner ring edge of the fitting body and enters passage, and first has space between corrugated plating and the second corrugated plating, the space connects with medium into passage, first corrugated plating and all laminating flexible graphite material of the second corrugated plating upper and lower surface, and first corrugated plating and the second corrugated plating be wrapped in inside expanded graphite packing layer.The corrugated self-fastening formula gasket seal of the resistance to temperature change by set fitting body, medium enter passage and expanded graphite packing layer be used in conjunction with each other solve the problems, such as medium temperature and pressure collective effect gasket seal can aging the recovery amount of temperature cycles gasket seal is repeated can be gradually thinning so as to producing leakage than by the few gasket seal of decrement.
Description
Technical field
It the utility model is related to gasket seal technical field, the corrugated self-fastening formula sealing gasket of specially a kind of resistance to temperature change
Piece.
Background technology
In the prior art, gasket seal is more is made with nonmetallic materials such as asbestos, rubber, or uses metal and metal material
Meet pad made of material, because the ability to meet with stresses of such a material or sealing structure is poor, using a period of time by
In medium temperature and the collective effect of pressure, gasket seal aging, fatigue relaxation, if do not added in the temperature-rise period of high temperature
Fastening, the frequency of leakage will increase, during heating, gasket seal compressed or because gasket seal composition aging and volatilization lead
The thickness of fine and close gasket is thinning, causes thermal expansion to cause the face pressure of flange distortion gasket seal irregular not as temperature rises
Neat phenomenon, pipe arrangement shrinks during cooling, is stretched and expands between flange face, and gasket seal restores to the original state and filled up between flange face
Space, the thickness that gasket seal is compressed before can not restoring at high operating temperatures, therefore face pressure can reduce, if be repeated
Temperature cycles, the recovery amount of gasket seal can be fewer than by decrement, therefore gasket seal can be gradually thinning.
Utility model content
The purpose of this utility model is the corrugated self-fastening formula gasket seal for providing a kind of resistance to temperature change, above-mentioned to solve
Temperature cycles gasket seal is repeated in medium temperature and pressure collective effect gasket seal the meeting aging proposed in background technology
Recovery amount can than by the few gasket seal of decrement can gradually it is thinning so as to produce leakage the problem of.
To achieve the above object, the utility model provides following technical scheme：A kind of corrugated self-fastening formula of resistance to temperature change
Gasket seal, including the first corrugated plating, the first corrugated plating and the second corrugated plating superposition form fitting body, and the first ripple
The outer ring edge of plate outer ring edge and the second corrugated plating is welded and fixed, and medium entrance is provided with the inner ring edge of the fitting body
Passage, and there is space between the first corrugated plating and the second corrugated plating, the space connects with medium into passage, and described first
Corrugated plating and all laminating flexible graphite material of the second corrugated plating upper and lower surface, and the first corrugated plating and the second corrugated plating
It is wrapped in inside expanded graphite packing layer.
Preferably, first corrugated plating and the second corrugated plating are corrugated metal sheet, and the first corrugated plating and the second ripple
The thickness of card is 5-10mm.
Preferably, crest and trough are concentric circles on first corrugated plating and the second corrugated plating.
Preferably, there are the fitting body two kinds of working conditions to be divided into off working state and working condition, the first wave
Card and the second corrugated plating in working condition between form space, and the first corrugated plating and the second corrugated plating are in off working state
When between fit together.
Preferably, the expanded graphite packing layer is annular, and expanded graphite packing layer is 5-8mm.
Compared with prior art, the beneficial effects of the utility model are：The corrugated self-fastening formula sealing gasket of the resistance to temperature change
By setting, fitting body, medium enter passage to piece and expanded graphite packing layer is used in conjunction with each other and solves medium temperature and pressure
The recovery amount that temperature cycles gasket seal is repeated in the meeting aging of collective effect gasket seal can be than by the few gasket seal of decrement
Can gradually it is thinning so as to produce leakage the problem of.The simple cost performance of corrugated self-fastening formula sheet gasket structure of the resistance to temperature change
Height, by setting expanded graphite packing layer and flexible graphite material to ensure that gasket seal recovery amount will not compare in temperature cycles repeatedly
It is few by decrement, therefore gasket seal will not be gradually thinning, while be also prevented from producing leakage because gasket seal is thinning, it is being situated between
Matter pressure and temperature change fluctuation when, the operating unit sealing load on gasket seal is mended by pressure medium transmission
Repay, to increase fitting body and the ratio pressure by sealing surfaces, realize self-tightening effect and increase anti-fatigue performance, use simple in construction,
Can be put goods on the market a large amount of production and applications.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model overlooking the structure diagram；
Fig. 3 is the utility model the first corrugated plating structural representation；
In figure：1st, the first corrugated plating, the 2, second corrugated plating, 3, fitting body, 4, medium enter passage, 5, space, 6, flexible
Graphite material, 7, expanded graphite packing layer.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-3 are referred to, the utility model provides a kind of technical scheme：A kind of corrugated self-fastening formula sealing of resistance to temperature change
Pad, including the first corrugated plating 1, the second corrugated plating 2, fitting body 3, medium enter passage 4, space 5, the and of flexible graphite material 6
Expanded graphite packing layer 7, the first corrugated plating 1 and the superposition of the second corrugated plating 2 form fitting body 3, and fitting body 3 has two kinds of work
State is divided into off working state and working condition, the first corrugated plating 1 and the second corrugated plating 2 in working condition between form space
5, and the first corrugated plating 1 and the second corrugated plating 2 in off working state between fit together, be advantageous to the various of working condition
Change, the first corrugated plating 1 and the second corrugated plating 2 are corrugated metal sheet, and the thickness of the first corrugated plating 1 and the second corrugated plating 2 is
5-10mm, corrugated metal sheet thickness of slab variable quantity in temperature change is small, and corrugated metal sheet is thin can also play anti-temperature change
Effect, and the outer ring edge of the outer ring edge of the first corrugated plating 1 and the second corrugated plating 2 is welded and fixed, the first corrugated plating 1 and second
Crest and trough are concentric circles on corrugated plating 2, and two pieces of corrugated plating sizes are identical, and compatible degree is good, are set on the inner ring edge of fitting body 3
It is equipped with medium and enters passage 4, and there is space 5 between the first corrugated plating 1 and the second corrugated plating 2, space 5 and medium enters passage
4 connections, the first corrugated plating 1 and all laminating flexible graphite material 6 of the upper and lower surface of the second corrugated plating 2, and the first ripple
The corrugated plating 2 of plate 1 and second is wrapped in inside expanded graphite packing layer 7, and expanded graphite packing layer 7 is annular, and expanded graphite
Packing layer 7 is 5-8mm, and the change of corrugated plating can be effectively reduced in temperature change, so as to be that corrugated plating is thinning, is made
The possibility of leakage reduces.
Operation principle：When using the corrugated self-fastening formula gasket seal of the resistance to temperature change, the waveform of the resistance to temperature change
Self-energized seal pad fitting body 3 in working condition between form space 5, the gasket seal medium enters passage by medium
4 enter, when pressure medium and temperature change fluctuation, by pressure medium transmission come to the working seal on gasket seal
Compensated than pressure, to increase fitting body 3 and the ratio pressure by sealing surfaces, realize self-tightening effect and increase anti-fatigue performance, and
And the gasket seal is metal corrugated plate using the first corrugated plating 1 and the second corrugated plating 2, due to pressure medium and temperature change
Generation circulation change and when alternate load occurs, can preferably be distributed in whole corrugated surface, expanded graphite packing layer 7 and flexibility
Graphite material 6 ensures that gasket seal recovery amount will not be fewer than by decrement in temperature cycles repeatedly, therefore gasket seal will not be gradually
Gradual change is thin, while is also prevented from producing leakage because gasket seal is thinning, and here it is the corrugated self-fastening formula of the resistance to temperature change is close
The use process of gasket.
Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art
Say, it can still be modified to the technical scheme described in foregoing embodiments, or which part technical characteristic is entered
Row equivalent substitution, all within the spirit and principles of the utility model, any modification, equivalent substitution and improvements made etc., all should
Within the scope of protection of the utility model.
Claims (5)
1. a kind of corrugated self-fastening formula gasket seal of resistance to temperature change, including the first corrugated plating (1), it is characterised in that：Described
One corrugated plating (1) and the second corrugated plating (2) superposition form fitting body (3), and the first corrugated plating (1) outer ring edge and the second ripple
The outer ring edge of card (2) is welded and fixed, and medium is provided with the inner ring edge of the fitting body (3) and enters passage (4), and
There are space (5) between one corrugated plating (1) and the second corrugated plating (2), the space (5) connects with medium into passage (4), institute
State the first corrugated plating (1) and all laminating flexible graphite material (6) of the second corrugated plating (2) upper and lower surface, and first wave
It is internal that card (1) and the second corrugated plating (2) are wrapped in expanded graphite packing layer (7).
A kind of 2. corrugated self-fastening formula gasket seal of resistance to temperature change according to claim 1, it is characterised in that：Described
One corrugated plating (1) and the second corrugated plating (2) are corrugated metal sheet, and the thickness of the first corrugated plating (1) and the second corrugated plating (2)
For 5-10mm.
A kind of 3. corrugated self-fastening formula gasket seal of resistance to temperature change according to claim 1, it is characterised in that：Described
Crest and trough are concentric circles on one corrugated plating (1) and the second corrugated plating (2).
A kind of 4. corrugated self-fastening formula gasket seal of resistance to temperature change according to claim 1, it is characterised in that：The patch
Fit (3) there are two kinds of working conditions to be divided into off working state and working condition, first corrugated plating (1) and the second corrugated plating
(2) in working condition between formed space (5), and the first corrugated plating (1) and the second corrugated plating (2) in off working state it
Between fit together.
A kind of 5. corrugated self-fastening formula gasket seal of resistance to temperature change according to claim 1, it is characterised in that：It is described swollen
Swollen graphite packing layer (7) is annular, and expanded graphite packing layer (7) is 5-8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720986328.4U CN207213148U (en) | 2017-08-02 | 2017-08-02 | A kind of corrugated self-fastening formula gasket seal of resistance to temperature change |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720986328.4U CN207213148U (en) | 2017-08-02 | 2017-08-02 | A kind of corrugated self-fastening formula gasket seal of resistance to temperature change |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207213148U true CN207213148U (en) | 2018-04-10 |
Family
ID=61818389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720986328.4U Active CN207213148U (en) | 2017-08-02 | 2017-08-02 | A kind of corrugated self-fastening formula gasket seal of resistance to temperature change |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207213148U (en) |
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2017
- 2017-08-02 CN CN201720986328.4U patent/CN207213148U/en active Active
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