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Cyclone compressor possessing abridged floating sealed device

A scroll compressor and floating seal technology, applied in the field of scroll compressors, can solve problems such as high cost, difficult installation and inspection, and complex structure of sealing devices, and achieve the effects of low cost, easy processing, and reliable installation

Active Publication Date: 2012-07-18
GREE ELECTRIC APPLIANCES INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, there are some deficiencies in the above-mentioned patented technology: firstly, it is necessary to open a discharge hole communicating with the groove on the end plate of the fixed scroll, so that a medium-pressure chamber is formed between the sealing device and the groove, through which the medium-pressure cavity in order to realize the axial floating of the sealing device between a first position and a second position in the groove; in addition, the sealing device needs to realize three-point sealing, that is, between the medium pressure cavity and the discharge pressure area, the middle Between the pressure chamber and the suction pressure area, between the suction pressure area and the discharge pressure area, the structure and performance of the sealing device itself are highly required, making the sealing device complex in structure, high in cost, and difficult to install and inspect

Method used

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  • Cyclone compressor possessing abridged floating sealed device
  • Cyclone compressor possessing abridged floating sealed device
  • Cyclone compressor possessing abridged floating sealed device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] like figure 1 As shown, the scroll compressor with a simplified floating seal mechanism in this embodiment includes: a sealed casing 1, in which a partition 2 is arranged on the middle and upper part; The scroll 3; the static scroll 4 placed in the casing and having a second helix on one end surface, the movable scroll 3 and the fixed scroll 4 mesh with each other; the movable scroll 3 is relative to the fixed scroll 4 around an axis The device running along the track includes a motor (not shown in the figure) and a crankshaft 7, etc., so that the movable scroll 3 and the fixed scroll 4 produce an internal volume gradually changing between a suction pressure zone 101 and a discharge pressure zone 102. Cavity; a device for installing the fixed scroll 4 so that it has limited axial movement relative to the movable scroll 3, including the base 5 and the sleeve bolt 6. Wherein, an exhaust hole 41 is opened in the center of the end plate of the fixed scroll 4 , and an exhau...

Embodiment 2

[0027] like figure 2 As shown, the difference between Embodiment 2 and Embodiment 1 is that in Embodiment 1, the groove 22 is directly formed on the bottom of the partition 2, and this structural partition is suitable for gray cast iron; The bottom end of the plate 2 is welded with a bearing sleeve 9 with a vent hole, and the bearing sleeve 9 provides a bearing sleeve groove 92, and the boss 42 is embedded in the bearing sleeve groove 92, and the sealing ring 8 is hermetically arranged on the protrusion. Between the outer wall of the platform 42 and the inner wall of the groove 92 of the bearing sleeve.

Embodiment 3

[0029] like image 3 As shown, the difference between the third embodiment and the second embodiment is: in the second embodiment, the bearing sleeve 9 is welded to the bottom of the partition plate 2, and its defect is that it needs to be centered, which makes assembly inconvenient; in the third embodiment, A disc spring 10 is set between the bottom end of the bearing sleeve 9 and the end plate of the fixed scroll, and a protruding ring mechanism 11 that forms a seal with the bottom end of the partition plate 2 is arranged on the top end of the bearing sleeve 9 to form a second seal. No worries.

[0030] Combine below Figure 4 The principle of action of the present invention is illustrated: the active force of the fixed scroll includes axial gas force Ft, tangential to its body force Fr, radial gas force Fa, and axial thrust Fd formed by exhaust pressure, wherein Fd=(Pd -Ps) Ae, Pd is the exhaust pressure, Ps is the suction pressure, and Ae is the area on the back of the s...

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PUM

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Abstract

The invention relates to a scroll compressor with a simplified floating seal mechanism, including a shell, a separator, a dynamic eddy, a static eddy, a motor and a crankshaft for driving the dynamic eddy, a base and a sleeve bolt for installing a static eddy disk and a floating seal mechanism including an integral formed boss above the end plate of the static eddy disk, a groove and a seal ring formed in the lower part of the separator. The boss is embedded into the groove, and the seal ring is arranged between the outer wall of the boss and the inner wall of the groove. The floating seal mechanism floats axially between a first location and a second location to balance the static eddy force. Compared with prior art, the compressor has the beneficial effects of easy processing, reliable installation, low cost and effective floating sealing effect.

Description

technical field [0001] The invention relates to a scroll compressor, in particular to a mechanism for realizing axial floating seal in the scroll compressor. Background technique [0002] Ordinary scroll compressors are mainly composed of a moving scroll, a fixed scroll, a crankshaft, a base, an anti-rotation mechanism, and a motor. They are installed eccentrically and opposite to each other by 180°. In theory, they will contact on several straight lines in the axial direction. The end of the scroll body shape line is in contact with the bottom of the opposite scroll body, so a series of crescents are formed between the moving and static scroll bodies. Shape space, that is, the volume of primitives. When the movable scroll takes the center of the static scroll as the center of rotation and performs non-rotation-translational motion with a certain radius of rotation, the crescent-shaped space of the outer ring will continuously move to the center, so that the volume of the e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C27/00F04C18/02
Inventor 陈达光陈炯陈迪松曹贞文尹秉奎梁健坤
Owner GREE ELECTRIC APPLIANCES INC