Simple, convenient and efficient detachable static seal structure
A static sealing and high-efficiency technology, applied to engine sealing, engine components, mechanical equipment, etc., can solve problems such as inconvenient maintenance, cumbersome installation, and bulky structure, and achieve the effects of convenient maintenance, reduced workload, and increased construction speed
Inactive Publication Date: 2013-09-11
北京众博达石油科技有限公司
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Problems solved by technology
Therefore, the static sealing forms that are commonly used at present will leak when the sealing pressure difference rises to a certain level, and the axial / cone pressing method has the disadvantages of heavy structure and cumbersome installation because sufficient pre-pressure must be ensured during installation. question
Although non-removable seals can achieve ultra-high pressure sealing, but due to the inconvenience of maintenance, they are only used in special cases where the purpose of detachable seals cannot be achieved
Method used
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Embodiment 1
[0020] Example 1, such as figure 2 As shown in the figure, 1. The medium to be sealed, 3. The sealing element, 7. The pressure-bearing shell, and 8. The sealing end cover.
[0021] The sealing end cover 8 is provided with a large inner diameter and thin-walled area on the left side of the sealing element 3. This area is deformed and adheres to the pressure-bearing shell 7 after the pressure difference between the sealed medium 1 and the outside world increases, eliminating the gap reserved during the initial installation between the two. gap, to avoid sealing failure caused by the sealing element 3 being extruded from this gap under high pressure difference.
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The invention discloses a simple, convenient and efficient detachable static seal structure. The structure can completely avoid a seal failure due to the fact that a seal material is extruded or loosened at high pressure, is convenient to mount, dismount and maintain, and low in cost, and has more obvious advantages in a high pressure and large size occasion compared with the prior art.
Description
technical field [0001] The invention belongs to the technical field of detachable static sealing, and in particular relates to a simple and efficient detachable static sealing structure, which can realize sealing with relatively low cost and relatively low construction difficulty. Background technique [0002] At present, in the field of detachable static seals, there are many forms of sealing by compressing the sealing material in the axial or radial direction, and there is also a form of compressing the sealing material on the cone surface. [0003] The standard radial compression method has an initial gap on the low-pressure side of the seal because the gap must be reserved for axial assembly, and the gap generally does not decrease with the increase of the sealing pressure difference; except for the inner cover form, The force-applying structure of axial and conical surface compression generally tends to relax as the sealing pressure difference increases, and finally a g...
Claims
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IPC IPC(8): F16J15/48F16J15/06
Inventor 李昊
Owner 北京众博达石油科技有限公司
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