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Labyrinth sealing structure and mounting method thereof

A technology of labyrinth seals and labyrinth seals, which is applied to non-variable pumps, parts of pumping devices for elastic fluids, machines/engines, etc., can solve the problem of not achieving the best sealing effect, installation method and installation space Limitations, inconvenient design of the filter compressor, etc., to achieve the effect of good rotor dynamics, simple structure, and easy maintenance

Active Publication Date: 2015-04-15
昆山三一环保科技有限公司
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Problems solved by technology

[0004] In order to solve the problem that the smooth labyrinth seal used in the current centrifugal compressor has restrictions on the installation method and installation space, and the sealing effect cannot be the best, and it will cause inconvenience to the design of the corresponding shaft of the filter element compressor, a labyrinth seal is now provided. Type seal structure and installation method

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  • Labyrinth sealing structure and mounting method thereof
  • Labyrinth sealing structure and mounting method thereof
  • Labyrinth sealing structure and mounting method thereof

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0029] Such as figure 1 , figure 2 and image 3 As shown, the embodiment of the present invention provides a labyrinth seal structure, including a seal installation hole 2 and a shaft 6 on the gearbox 1, a seal body 10 is arranged in the seal installation hole 2, and the seal body 10 and the shaft 6 form a labyrinth Sealing, an upper oil seal 8-2 and a lower oil seal 8-1 are arranged outside the shaft 6, a pull rod 9 is connected between the shaft 6 and the impeller 11, and a bearing 7 is installed outside the shaft 6. The sealing installation hole 2 is composed of an upper part and a lower part, and the center of the upper section is O 1 and the lower section center O 2 There is a certain distance D between them. The seal instal...

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Abstract

The invention discloses a zigzag tooth labyrinth sealing structure and a mounting method thereof and belongs to the technical field of sealing devices. The labyrinth sealing structure comprises a seal mounting hole and a shaft, wherein the seal mounting hole is internally provided with a sealing body; the sealing body and the shaft form a labyrinth seal; the seal mounting hole is provided with a horizontal guide slot and an annular limiting slot; the horizontal guide slot and the annular limiting slot are communicated; the sealing body comprises an upper sealing body and a lower sealing body; the outer side of the sealing body is provided with a guide key; the upper sealing body and the lower sealing body respectively slide into the annular limiting slot along the horizontal guide slot by virtue of the guide keys so as to form cylindrical seal teeth in a matching manner; and the cylindrical sealing teeth and the sealing teeth on the shaft form a zigzag tooth labyrinth seal. The sealing body and the shaft form the zigzag tooth labyrinth seal, so that the problem that the mounting space is limited can be solved; the zigzag tooth labyrinth seal also has a better sealing effect; and furthermore, the zigzag tooth labyrinth seal is simple in structure and convenient and easy to maintain.

Description

technical field [0001] The invention relates to the technical field of sealing devices, in particular to a staggered tooth labyrinth sealing structure and an installation method. Background technique [0002] According to the structural characteristics, the sealing device can be divided into five types: pumping type, labyrinth type, floating ring type, mechanical type and spiral type. For generally toxic, flammable and explosive gases, floating ring type, mechanical type, spiral type and For sealing devices such as suction type, if the gas is non-toxic, harmless, and the boost pressure is low, a labyrinth sealing device can be selected. [0003] The current centrifugal compressor generally adopts a smooth labyrinth seal as the sealing device, but this kind of labyrinth seal has restrictions on the installation method and installation space, and the sealing effect cannot be the best. inconvenient. Contents of the invention [0004] In order to solve the problem that the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/08F04D29/62
Inventor 李星星褚红艳陈宗华
Owner 昆山三一环保科技有限公司
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