CN213017678U

CN213017678U - Winding seal gasket

Info

Publication number: CN213017678U
Application number: CN202021362733.7U
Authority: CN
Inventors: 岑炯炯; 奚侠; 朱亚
Original assignee: NINGBO IDT SINYUAN SEALING TECHNOLOGY CO LTD
Current assignee: NINGBO IDT SINYUAN SEALING TECHNOLOGY CO LTD
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-04-20
Anticipated expiration: 2030-07-13

Abstract

The utility model relates to the field of sealing technique, and a winding seal gasket is disclosed, including metal O type circle outer loop, gasket mechanism and metal O type circle inner ring. This winding gasket compares with prior art, and the benefit of using metal O type circle as winding gasket's interior outer ring is: 1. the outer ring of the metal O-shaped ring can enable the gasket and the flange to be in centering as gasket compression limiting as the inner ring and the outer ring of the traditional wound gasket, and the inner ring of the metal O-shaped ring provides extra radial strength; 2. when the bolt load is overlarge, the load can be effectively absorbed to protect the gasket mechanism, and the gasket mechanism is prevented from being crushed by the overlarge bolt load; 3. the filler wound with the gasket can be isolated from fluid in the pipeline and the external environment, the filler is protected, the scouring abrasion of the flange is reduced, and the sealing element is protected; 4. the gasket is easy to install, and can be effectively installed and used without a torque wrench.

Description

Winding seal gasket

Technical Field

The utility model relates to a sealed technical field specifically is a winding seal gasket.

Background

In flange applications, where sealing gasket is an indispensable sealing tool, metal wound gaskets are one of the most widely used gaskets, wound gaskets provide a low cost seal that can be used at operating temperatures and pressure fluctuations, and multiple layers of metal and filler wound to form a sealed spacer that effectively reduces the potential for leakage.

Along with the development of science and technology, the applied environment of flange is also more and more complicated, the seal gasket that can use in corresponding complex environment is required thereupon, when the gasket installation, must have suitable bolt power, when the load is too big, the gasket can be crushed, the leakage will take place, in the gasket use, easily receive the erosion and corrosion of the fluid in the pipeline, the residue that can lead to the filler even is brought into in the middle of the fluid, some gaskets are poor in weatherability, in long-term practical process, receive the influence of environment and lead to the gasket ageing, so provide a winding seal gasket and solve the problem that the aforesaid provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To prior art not enough, the utility model provides a winding seal gasket, prevent the too big crushing gasket of bolt load when the gasket installation, and it is isolated with fluid and external environment in the pipeline with the winding filler effectively, solved when the gasket installation, must have suitable bolt power, when the load is too big, the gasket can be crushed, it will take place to leak, in the gasket use, easily receive the interior fluid erodeing corrosion of pipeline, the residue that can lead to the filler even is brought into in the middle of the fluid and is gone, gasket weatherability is poor for a few, in long-term practical in-process, the influence that receives the environment leads to the ageing problem of gasket.

(II) technical scheme

For realize above-mentioned too big crushing gasket of bolt load when the gasket installation that prevents to will twine the filler effectively and the isolated purpose of fluid and external environment in pipeline, the utility model provides a following technical scheme: the utility model provides a winding seal gasket, includes metal O type circle outer loop, gasket mechanism and metal O type circle inner ring, metal O type circle outer loop fixed mounting is in the left side of gasket mechanism, metal O type circle inner ring fixed mounting is on the right side of gasket mechanism.

Preferably, the outer ring of the metal O-ring and the inner ring of the metal O-ring are both metal O-rings.

Preferably, the gasket mechanism comprises a metal winding belt and a filler, and the filler is fixedly connected to the inner side of the metal winding belt.

Preferably, the number of the metal winding belt is four, the number of the filler is five, and the thickness of the metal winding belt is smaller than that of the filler.

Preferably, the metal wrapping tape is 304 stainless steel, and the filler is graphite.

(III) advantageous effects

Compared with the prior art, the utility model provides a winding seal gasket possesses following beneficial effect:

this winding gasket compares with prior art, and the benefit of using metal O type circle as winding gasket's interior outer ring is: 1. the outer ring of the metal O-shaped ring can enable the gasket and the flange to be in centering as gasket compression limiting as the inner ring and the outer ring of the traditional wound gasket, and the inner ring of the metal O-shaped ring provides extra radial strength; 2. when the bolt load is overlarge, the load can be effectively absorbed to protect the gasket mechanism, and the gasket mechanism is prevented from being crushed by the overlarge bolt load; 3. the filler wound with the gasket can be isolated from fluid in the pipeline and the external environment, the filler is protected, the scouring abrasion of the flange is reduced, and the sealing element is protected; 4. the gasket is easy to install, and can be effectively installed and used without a torque wrench.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1 metal O type circle outer loop, 2 gasket mechanisms, 3 metal O type circle inner ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1, a wound sealing gasket comprises a metal O-ring outer ring 1, a gasket mechanism 2 and a metal O-ring inner ring 3, wherein the metal O-ring outer ring 1 is fixedly installed on the left side of the gasket mechanism 2, the gasket mechanism (2) comprises a metal winding belt and a filler, the inner side of the metal winding belt is fixedly connected with the filler, the number of the metal winding belt is four, the number of the filler is five, the thickness of the metal winding belt is smaller than that of the filler, the metal winding belt is 304 stainless steel, the filler is graphite, the metal O-ring outer ring 1 and the metal O-ring inner ring 3 are both metal O-rings, the metal O-ring inner ring 3 is fixedly installed on the right side of the gasket mechanism 2, and compared with the prior art, the metal O-ring is used as the inner ring and the outer ring of the wound gasket: 1. like the traditional inner ring and the traditional outer ring of the wound gasket, the outer ring 1 of the metal O-shaped ring can enable the gasket and the flange to be in neutralization to be used as gasket compression limiting, and the inner ring 3 of the metal O-shaped ring provides extra radial strength; 2. when the bolt load is overlarge, the load can be effectively absorbed to protect the gasket mechanism 2, and the gasket mechanism 2 is prevented from being crushed due to the overlarge bolt load; 3. the filler wound with the gasket can be isolated from fluid in the pipeline and the external environment, the filler is protected, the scouring abrasion of the flange is reduced, and the sealing element is protected; 4. the gasket is easy to install, and can be effectively installed and used without a torque wrench.

To sum up, this winding gasket compares with prior art, and the benefit of using metal O type circle as the interior outer ring of winding gasket is: 1. like the traditional inner ring and the traditional outer ring of the wound gasket, the outer ring 1 of the metal O-shaped ring can enable the gasket and the flange to be in neutralization to be used as gasket compression limiting, and the inner ring 3 of the metal O-shaped ring provides extra radial strength; 2. when the bolt load is overlarge, the load can be effectively absorbed to protect the gasket mechanism 2, and the gasket mechanism 2 is prevented from being crushed due to the overlarge bolt load; 3. the filler wound with the gasket can be isolated from fluid in the pipeline and the external environment, the filler is protected, the scouring abrasion of the flange is reduced, and the sealing element is protected; 4. the gasket is easy to install, and can be effectively installed and used without a torque wrench.

The working principle is as follows:

firstly, because the rigidity of the metal O-shaped ring is higher, the metal O-shaped ring outer ring 1 and the metal O-shaped ring inner ring 3 are added on the inner side and the outer side of the gasket mechanism 2, when the gasket mechanism 2 is compressed, the winding body is firmly fixed between the inner metal O-shaped ring and the outer metal O-shaped ring, at the moment, the metal O-shaped ring outer ring 1 plays a role in compressing and limiting the gasket mechanism 2, and the metal O-shaped ring inner ring 3 provides extra radial strength;

secondly, when the gasket mechanism 2 is subjected to bolt load force, the gasket mechanism 2 is compressed under the action of the load force, when the gasket mechanism 2 is compressed to a certain degree, the bolt load force is continuously increased, and the metal O-shaped ring outer ring 1 and the metal O-shaped ring inner ring 3 absorb the redundant bolt load force to play a role in protecting the gasket mechanism 2;

when the gasket is arranged in a flange, the outer ring 1 of the metal O-shaped ring and the inner ring 3 of the metal O-shaped ring are in contact with the flange, so that the gasket mechanism 2 can be effectively prevented from being in contact with fluid in a pipeline and the external environment;

and fourthly, in the same way as the second step, under the condition that the torque wrench is in shortage, the gasket cannot be negatively affected by excessive bolt load.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a winding seal gasket, includes metal O type circle outer loop (1), gasket mechanism (2) and metal O type circle inner ring (3), its characterized in that: the metal O-shaped ring outer ring (1) is fixedly arranged on the left side of the gasket mechanism (2), and the metal O-shaped ring inner ring (3) is fixedly arranged on the right side of the gasket mechanism (2).

2. The wound gasket seal of claim 1, wherein: the metal O-shaped ring outer ring (1) and the metal O-shaped ring inner ring (3) are both metal O-shaped rings.

3. The wound gasket seal of claim 1, wherein: the gasket mechanism (2) comprises a metal winding belt and filler, and the filler is fixedly connected to the inner side of the metal winding belt.

4. The wound gasket seal of claim 3, wherein: the number of the metal winding belts is four, the number of the fillers is five, and the thickness of the metal winding belts is smaller than that of the fillers.

5. The wound gasket seal of claim 3, wherein: the metal winding belt is 304 stainless steel, and the filler is graphite.