High-sealing-performance pure tetrafluoro modified spring seal sprint gasket

Abstract

The utility model relates to the technical field of sealing elements, in particular to a high-sealing-performance pure tetrafluoro modified flooding plug seal sprint gasket, and aims to solve the problems that a traditional gasket is limited in elastic restoring force, insufficient in abrasion resistance, low in tearing strength and ineffective in sealing during long-term use. The gasket comprises a gasket base body wrapped with a supporting piece so as to enhance elasticity and tear resistance. The adjusting layer containing the phase-change material microcapsules is arranged in the base body, the thickness can be automatically adjusted along with temperature changes, and the stable sealing effect is maintained. Expansion rings are arranged close to the edges of the adjusting layers, and the end face adjusting force is further improved. The two end faces are covered with wear-resistant layers compounded with ceramic or polymer synthetic particles, and the surface wear resistance is remarkably improved. The lip groove is formed in the outer side wall, the reinforcing layer is arranged in the lip groove, the edge structural strength is enhanced, and installation adaptability and sealing reliability are improved. The sealing performance and the mechanical strength are improved, the application range is expanded, the maintenance cost is reduced, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sealing element technical field, concretely relates to a pure tetrafluoro modified panseal sealing gasket with high sealing performance. BACKGROUND

[0002] The information disclosed in the background of the utility model is only intended to increase the understanding of the overall background of the utility model, and is not necessarily regarded as acknowledging or implicitly suggesting that the information constitutes prior art known to those skilled in the art.

[0003] Panseal is a high-performance sealing material, commonly used to manufacture various types of seals, especially in the chemical, oil and gas industries.

[0004] Traditional pure tetrafluoro modified panseal sealing gaskets, such as gaskets, O-rings and other sealing components, although have good chemical stability and low friction characteristics, but in the long-term use process, due to the limited elastic recovery, insufficient wear resistance and low tear strength, its sealing performance will gradually decrease. In addition, when the traditional gasket faces a larger temperature change, due to the mismatch of the thermal expansion coefficient of the material itself, it will lead to insufficient sealing pressure or excessive compression, and thus cause leakage or other failures.

[0005] Therefore, it is necessary to design an improved pure tetrafluoro modified panseal sealing gasket to solve the above problems and provide a more reliable sealing solution. CONTENT OF THE UTILITY MODEL

[0006] In order to solve the above technical problems, the utility model provides a pure tetrafluoro modified panseal sealing gasket with high sealing performance, which aims to solve the problem of limited elastic recovery, insufficient wear resistance, low tear strength and sealing failure of traditional gaskets in long-term use.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A pure tetrafluoro modified panseal sealing gasket with high sealing performance, comprising a gasket base body, the gasket base body is wrapped with a support piece;

[0009] The gasket base body is also wrapped with an adjusting layer for self-adapting temperature to adjust the thickness;

[0010] The gasket base body is provided with a wear-resistant layer at both ends of the end face.

[0011] As a preferred, the adjusting layer is provided with a phase change material.

[0012] As a preferred, the adjusting layer is provided with an expansion ring near the edge.

[0013] As preferred, a plurality of microcapsules are arranged in the adjusting layer, and the microcapsules are arranged with phase change material.

[0014] As preferred, the wear-resistant layer is a base material compounded with wear-resistant particles.

[0015] As preferred, the outer sidewall of the gasket base is provided with a lip groove.

[0016] As preferred, the lip groove is provided with a reinforcing layer.

[0017] The utility model includes but is not limited to the following beneficial effects:

[0018] The utility model discloses a gasket base is provided with the adjusting layer containing phase change material, and the gasket can automatically adjust the thickness when the temperature changes, and maintains stable sealing contact pressure.

[0019] The support sheet (such as sheet-shaped fiber or grid sheet) wrapped in the gasket base helps to uniformly disperse stress, enhances the elasticity and tear resistance of the gasket, and reduces the wear and tear risk in long-term use.

[0020] The reinforcing layer arranged in the lip groove further improves the mechanical strength of the gasket edge area, preventing edge damage that may occur during installation or operation.

[0021] The wear-resistant layer arranged at both ends of the gasket base is composed of a base material compounded with wear-resistant particles, which can be ceramic particles or high molecular synthetic particles, significantly improving the wear resistance of the surface and prolonging the service life of the gasket. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The utility model discloses a whole structure schematic diagram;

[0023] Figure 2 The utility model discloses a Figure 1 The utility model discloses an enlarged structure schematic diagram at A place.

[0024] The reference signs involved in the drawings are: 100, gasket base; 101, wear-resistant layer; 102, adjusting layer; 1021, microcapsule; 1022, expansion ring; 103, support sheet; 200, lip groove; 201, reinforcing layer. DETAILED DESCRIPTION

[0025] In order to make the person skilled in the art can better understand the utility model, the utility model technical scheme is further explained below in combination with the drawings and examples.

[0026] Figures 1 to 2The application discloses a pure tetrafluoro modified panseal sealant gasket with high sealing performance, which comprises a gasket base body 100, wherein a supporting sheet 103 is wrapped in the gasket base body 100, the supporting sheet 103 can be a sheet-shaped fiber or a mesh sheet, and the supporting sheet 103 is helpful for stress dispersion, thereby being helpful for enhancing elasticity and tear resistance.

[0027] An adjusting layer 102 for self-adapting temperature adjusting thickness is further wrapped in the gasket base body 100, phase change materials are arranged in the adjusting layer 102, or a plurality of microcapsules 1021 are arranged in the adjusting layer 102, and phase change materials are arranged in the microcapsules 1021, so that an adjusting surface is more uniform, and an adjusting performance is better.

[0028] In order to further enhance the adjusting performance of the adjusting layer 102, the adjusting layer 102 is provided with an expansion ring 1022 close to an edge, so that an end surface of the gasket base body 100 has an annular surface with a greater adjusting degree.

[0029] The end surface of the gasket base body 100 is provided with a wear-resistant layer 101, and the wear-resistant layer 101 is a base material with wear-resistant particles. The wear-resistant particles can be ceramic particles or high polymer synthetic particles.

[0030] The outer side wall of the gasket base body 100 is provided with a lip groove 200, the installation adaptability can be improved, meanwhile, the lip groove 200 and the expansion ring 1022 provide an additional sealing surface and increase the complexity of a sealing path, and the overall sealing effect is improved, and even if a main sealing surface has a slight leakage, the leakage can be effectively prevented.

[0031] In order to enhance the edge structure of the gasket base body 100, the lip groove 200 is provided with a reinforcing layer 201, and the mechanical performance is enhanced.

[0032] Working principle: phase change materials (PCMs) can be converted between solid and liquid states when absorbing or releasing heat. For example, certain organic phase change materials are melted into liquid when the temperature rises, and are solidified into solid when the temperature drops.

[0033] In the adjusting layer 102 in the application, the phase change material microcapsules 1021 are dispersed in the whole gasket base body 100. When the temperature rises, the phase change material absorbs heat and is converted from solid to liquid, and when the phase change material is melted into liquid due to heating, the distance between molecules is increased, so that the total volume is increased, the gasket is slightly expanded, and the problem that the sealing contact surface pressure is reduced due to the temperature rise is compensated; conversely, the same is true. In this way, the effect of automatically adjusting the thickness with the change of temperature is realized.

[0034] In another embodiment, the material of the adjusting layer 102 is a paraffin material, and the phase change temperature range is 20-80 DEG C, which has the advantages of low cost, easy to obtain, good chemical stability, and not easy to react with most media, and is suitable for application scenarios of medium temperature range fluctuation.

[0035] In another embodiment, the material of the adjusting layer 102 is a polyol organic compound, and the phase change temperature range is-20-60 DEG C, which is suitable for sealing of frozen refrigeration systems and low-temperature pipeline connections, and can maintain sealing performance in a wide temperature range.

[0036] In another embodiment, the material of the adjusting layer 102 is a polymer-based phase change material (synthetic polymer material), and the phase change temperature range can be customized according to requirements.

[0037] In summary, the pure tetrafluoro modified panse sealing sprint gasket with high sealing performance includes a gasket base body 100, and a supporting piece 103 is wrapped in the gasket base body 100 to disperse stress and enhance elasticity and tear resistance. In addition, the gasket is provided with an adjusting layer 102 with self-adapting temperature adjusting thickness, which contains a phase change material or a phase change material encapsulated by microcapsules 1021, and can automatically adjust the thickness with temperature change to ensure stable sealing pressure. The adjusting layer 102 is provided with an expansion ring 1022 at the edge, and the adjusting force of the end face is optimized. The wear-resistant layer 101 covered with composite wear-resistant particles is arranged on the two end faces to improve the surface wear resistance. The lip groove 200 is designed on the outer side wall, and the reinforcing layer 201 is arranged in the lip groove 200, so that the installation adaptability and the edge structure strength are improved. The gasket is suitable for different temperature ranges, different phase change materials are selected, the application scenarios from low temperature to medium temperature are met, and a more reliable and durable sealing solution is provided.

[0038] Through the above improvement, the performance of the gasket is improved, and the application field is expanded, and better choices are provided for the chemical, petroleum and natural gas industries.

[0039] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between the various embodiments can be referred to each other.

[0040] In the specification, claims and above drawings, the terms "upper", "lower", "outer side" and "inner side" are used to distinguish the relative position, and do not have to be given a nature. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any modification thereof are intended to cover non-exclusive inclusion.

[0041] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-sealing pure PTFE modified puncture gasket, comprising a gasket matrix, wherein a support sheet is encapsulated within the gasket matrix; characterized in that: The gasket matrix is ​​also encapsulated with an adjustment layer for adaptive temperature-controlled thickness adjustment; The gasket substrate has wear-resistant layers on both end faces.

2. The high-sealing pure PTFE modified PTFE plug seal puncture gasket as described in claim 1, characterized in that: The regulating layer contains a phase change material.

3. The high-sealing pure PTFE modified PTFE plug seal puncture gasket as described in claim 2, characterized in that: An expansion ring is provided near the edge of the adjustment layer.

4. The high-sealing pure PTFE modified PTFE plug seal puncture gasket as described in claim 2, characterized in that: The regulating layer contains a plurality of microcapsules, and each microcapsule contains a phase change material.

5. The high-sealing pure PTFE modified PTFE plug seal puncture gasket as described in claim 1, characterized in that: The wear-resistant layer is a matrix material composited with wear-resistant particles.

6. The high-sealing pure PTFE modified puncture gasket as described in any one of claims 1 to 5, characterized in that: The outer wall of the gasket substrate is provided with a lip groove.

7. The high-sealing pure PTFE modified PTFE plug seal puncture gasket as described in claim 6, characterized in that: A reinforcing layer is provided inside the lip groove.

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