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Dry gas seal slotting method and device based on slot bottom micro model design

A technology of dry gas sealing and slotting method, which is applied in the directions of engine sealing, design optimization/simulation, calculation, etc., to achieve the effect of reducing slotting technical requirements, reducing leakage, and optimizing slot structure

Active Publication Date: 2017-10-03
山东双环密封科技有限公司
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Problems solved by technology

However, through the search of domestic and foreign literature and patents in this field, there is no research on the microscopic effect under the orderly design of the dry gas seal groove bottom interface and the guidance and suggestions for the seal groove technology, which makes the theoretical research of dry gas seal micro-gap seal There is still a big gap between it and the actual application, which is an urgent problem to be solved in the industrial application of dry gas sealing

Method used

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  • Dry gas seal slotting method and device based on slot bottom micro model design
  • Dry gas seal slotting method and device based on slot bottom micro model design
  • Dry gas seal slotting method and device based on slot bottom micro model design

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Embodiment Construction

[0045] Below in conjunction with accompanying drawing, the present invention will be further described:

[0046] like Figure 1-8 As shown, a dry gas seal grooving method based on the micro-modeling design of the groove bottom is characterized in that it includes AR type two-dimensional digital filtering technology, and the steps are as follows:

[0047] Step 1: Rough surface method based on Gaussian distribution and linear autocorrelation function, using AR type two-dimensional digital filtering technology;

[0048] Step 2: Establish a model for simulating the microscopic random characteristics of the interface roughness of the groove bottom (such as figure 1 shown);

[0049] Step 3: Generate an autocorrelation function rough surface 3D model with corresponding random features based on the model in step 2 (such as figure 2 Shown) and establish functional relationship, described rough surface autocorrelation function is as follows:

[0050] R(τ x , τ y ) = σ 2 exp{-2.3...

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Abstract

The invention discloses a dry gas seal slotting method and device based on slot bottom micro model design. A relatively reasonable and complete slot bottom interface roughness model is established, the mechanism of the reasonable roughness model design on sealing performance improving and slotting technology standard lowering is elucidated, accordingly an orderly model design method based on the dry gas seal slot bottom roughness microeffect is finally achieved, the dry gas seal performance is improved, and the slotting technology method is simplified.

Description

technical field [0001] The invention belongs to the field of mechanical engineering and the field of fluid sealing technology, and in particular relates to a dry gas seal groove opening method and a device thereof based on groove bottom micro-modeling design. Background technique [0002] In recent years, with the rapid development of industry and the improvement of people's environmental requirements, petroleum, petrochemical and other related process industries have been promoted to develop in the direction of no pollution, long cycle, low energy consumption and high efficiency, and most of the sealing fluids of such industries have Flammable, explosive, highly toxic, and seriously polluted, it is difficult for traditional mechanical seals to meet the sealing requirements of equipment. The outstanding feature of dry gas sealing technology is that it realizes the non-contact and small gap operation of the sealing interface through a very thin pressure gas film. The superior...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/40G06F17/50
CPCF16J15/40G06F30/17G06F30/20
Inventor 王衍郑小清周先才郑炫
Owner 山东双环密封科技有限公司
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