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Air seal device

A technology of gas sealing and labyrinth sealing, which is applied to parts of pumping devices for elastic fluids, liquid fuel engines, non-variable pumps, etc., can solve problems such as fan gas leakage, and achieve the effect of avoiding gas leakage

Active Publication Date: 2015-09-09
JIN TONG LING TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problem of gas leakage inside the fan existing in the prior art, the present invention provides a gas sealing device

Method used

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  • Air seal device
  • Air seal device

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Experimental program
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Embodiment 1

[0028] if figure 1 As shown, a gas sealing device includes seal I1, upper casing 2, inlet hole 3, seal II4, seal III5, main shaft 6, outlet hole I7, outlet hole II8, bolt connection hole 9, lower casing 10; I1, seal II4, and seal III5 are located on the main shaft 6 in turn, and are connected with the upper housing 2 and the lower housing 10; the inlet hole 3 is located in the upper housing 2 and communicates with the seal II4; the upper and lower housings between the seal I1 and the seal II4 The body has a cavity I11, and the upper and lower shells between the seal II4 and the seal III5 have a cavity II12; the outlet hole I7 is located at the bottom of the cavity I11 of the lower shell 10; the outlet hole II8 is located at the bottom of the cavity II12 of the lower shell 10; Bolt connection holes 9 are located at the outer ends of the upper shell 2 and the lower shell 10 .

[0029] 4 to 50 small holes are evenly distributed along the circumference of the sealing II4, such as...

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PUM

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Abstract

The invention provides an air seal device which comprises a seal I, an upper shell, an inlet hole, a seal II, a seal III, a main shaft, an outlet hole I, an outlet hole II and a lower shell, wherein the seal I, the seal II and the seal III are successively located on the main shaft and connected to the upper shell and the lower shell; the inlet hole is located in the upper shell and communicated with the seal II; the upper shell and the lower shell between the seal I and the seal II form a cavity I, and the upper shell and the lower shell between the seal II and the seal III form a cavity II; the outlet hole I is located in the bottom of the cavity I of the lower shell; and the outlet hole II is located in the bottom of the cavity II of the lower shell. The air seal device provided by the invention adopts three-level labyrinth sealing, wherein air in a fan is firstly sealed by the seal III on the right side, and the leaked partial air then passes the seal II and the seal I in order to avoid air leakage in the fan to the hilt.

Description

technical field [0001] The invention relates to the technical field of gas sealing devices, in particular to a sealing device for sealing gas. Background technique [0002] Gas blowers are mainly used for gas transportation, pressurization, etc., and are widely used in coke oven gas, converter gas, and calcium carbide flue gas industries. Its sealing performance is one of the important indicators of its operational reliability, especially in the occasions of conveying toxic, harmful, flammable, explosive or precious gases. If the seal is not good, not only will a large amount of precious gas be lost, but more seriously, it will cause environmental pollution and endanger human health. [0003] The labyrinth seal is one of the widely used sealing methods in the existing fan seals, because this kind of seal has a simple structure and low processing and maintenance costs, but its disadvantage is that it cannot achieve zero leakage. Therefore, it poses a potential threat to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/10
Inventor 张旭朋曹萍陆建军徐进
Owner JIN TONG LING TECH GRP CO LTD