CN102052303A - Ten-stage scroll compressor - Google Patents

Abstract

The invention relates to a ten-stage scroll compressor which belongs to the technical field of design theories of mechanical equipment and mainly comprises an orbiting scroll, a fixed scroll, a cross ring and an eccentric shaft. After the orbiting scroll and the fixed scroll of identical scroll type line parameters, a phase difference pi and a distance r of centers of base circles are assembled, a plurality of pairs of closed ten-stage crescent-shaped volume cavities are formed; when the center of the orbiting scroll (the center of the base circle) does circular orbital motion with a radius r around the center of the fixed scroll (the center of the base circle), the closed volume cavities are correspondingly enlarged or reduced, thereby achieving the purposes of inhaling, compressing and exhausting gas. The first-stage compression, the second-stage compression, the third-stage compression, the fourth-stage compression, the fifth-stage compression, the sixth-stage compression, the seventh-stage compression, the eighth-stage compression, the ninth-stage compression and the tenth-stage compression work simultaneously; low-pressure gas enters a gas inhalation cavity from gaps on the circumference of the orbiting scroll and the fixed scroll, is compressed and then is exhausted from exhaust ports in the center of the fixed scroll. The ten-stage scroll compressor has the advantages of simple structure, small size, high volume utilization ratio, high compression ratio, stable movement, low noise and the like, and can be widely applied to air conditioners and refrigeration units.

Description

A kind of ten grades of scroll compressors

Technical field

The present invention is specifically related to a kind of ten grades of scroll compressors, belongs to machinery design theory technical field.

Background technique

Scroll compressor is a kind of precision optical machinery of compressing and freezing of being used to, it has a series of advantages such as simple and compact for structure, energy-efficient, microseism low noise and reliability height, makes scroll compressor in the application of refrigeration and field of air conditioning development at full speed be arranged.Nowadays, scroll compressor has been widely used in the air-conditioning and refrigeration unit of middle and small scale.But prior art is mainly U.S., monopolizes day, and therefore, it is imperative to carry out the scroll compressor that has China's independent intellectual property right.

Superiority such as parts are few, noise is low though traditional single-stage scroll compressor has, low vibration, high efficiency, for more and more higher present of performance requirement, its compression ratio far can not reach requirement.

Existing two-stage scroll compressor, as patent No. No.5,304,047 U. S. Patent.This traditional two-stage scroll compressor has first, second and the 3rd scroll.There is a choma (Spiral Ridge) respectively in the second and the 3rd scroll, and first scroll has two chomas on opposite both sides.The second and the 3rd scroll is installed in the bi-side of first scroll, and choma and first scroll of the second and the 3rd scroll by correspondence intermeshed and constituted the compression that compression chamber is realized gas medium.The compression chamber that first scroll and second scroll form is low compression stage, and the compression chamber that the first and the 3rd scroll forms is the high compression level.And for example the patent No. is the European patent of No.1293676, comprise first order compressor and high stage compressor, first order compressor drives by first order driving source, high stage compressor drives by second level driving source, and the through hole of the through hole of the relief opening of first order compressor and the relief opening of second level compression stage links to each other and pools the through hole of total relief opening.The major defect of existing two-stage scroll compressor is: structure is complicated, and volume is big, and it is steady inadequately to move, and noise is big etc.

Summary of the invention

The objective of the invention is to overcome the deficiency of traditional single stage, existing two stage compressor, a kind of ten grades of scroll compressors are provided, it is little that it has a volume, simple in structure operating steadily, low noise, characteristics such as high compression efficiency and high compression ratio.

The present invention adopts following technical proposals to realize: a kind of ten grades of scroll compressors of the present invention mainly comprise: movable orbiting scroll, quiet whirlpool dish, partition ring, eccentric shaft.A kind of working principle of nine grades of scroll compressors:, phase difference π identical, basic circle center the scroll molded line parameter at a distance of the movable orbiting scroll of r (value of r is relevant with involute pitch and wall thickness) and quiet whirlpool coil assemble after, can form several ten grades of crescent shape cavity volumes to sealing, when movable orbiting scroll center (referring to the basic circle center) is circular orbit when motion of r as radius around quiet whirlpool disk center (referring to the basic circle center), the cavity volume of these sealings enlarges accordingly or dwindles, and realizes the purpose of suction, compression and the exhaust of gas thus.Low-pressure gas enters air aspiration cavity from the peripheral slit of movable orbiting scroll, quiet whirlpool dish, is discharged by the vent ports at disk center place, quiet whirlpool after compression.

After the present invention adopts technique scheme, mainly contain following beneficial effect:

1. these ten stage compressor compression processes are divided into first order compression, second level compression, third level compression, fourth stage compression, level V compression, the 6th grade of compression, the 7th grade of compression, the 8th grade of compression, the 9th grade of compression and ten parts of the tenth grade of compression.First order compression is air-breathing and through the row compression from the external world, when being compressed to the second level, the first order compression chamber volume rapid drawdown because second level compression chamber volume is compared, make the gas medium compression ratio increase rapidly, compression successively, during at last to the tenth grade of compression, compression ratio increases again, reaches the high compression effect.Thereby make these ten grades of scroll compressors have higher capacity utilization and compression ratio than single-stage scroll compressor and present two stage compressor.

2. these ten grades of scroll compressors do not need lubricant oil and relevant lubricating element, and are simple in structure, so operation is more steady, noise is low, and frictional force is less.

3 compare present two stage compressor, and this ten stage compressor does not need component such as two or more sound whirlpool dish, and structure is simpler, and compression effectiveness is better.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples

Fig. 1 is a transverse cross-sectional view of the present invention

Fig. 2 is an axial section of the present invention

Among the figure: the quiet whirlpool of A dish, B movable orbiting scroll, C cross, the D eccentric shaft, CH1 23456789 10 11 12 13 14 15 16 1,718 19 20 21 22 23 compression chambers, the compression of 1 first order, the compression of 2 second level, the compression of 3 third level, the compression of 4 fourth stages, the compression of 5 level Vs, 6 the 6th grades of compressions, 7 the 7th grades of compressions, 11 the 8th grades of compressions, 10 the 9th grades of compressions, 9 the tenth grades of compressions, 8 exhaust ports.

Embodiment

Below in conjunction with embodiment, further specify the present invention.

Embodiment 1

Shown in Figure of description 1, a kind of ten grades of scroll compressors mainly comprise: movable orbiting scroll (B), quiet whirlpool dish (A), partition ring (C), eccentric shaft (D).It is characterized in that: movable orbiting scroll (B), quiet whirlpool dish (A) structure is shown in Figure of description, if ordinary single-stage scroll molded line height is h1, the height of first order compression (1) also is h1 among Fig. 4, second level compression (2) highly is h2 (h2＜h1), third level compression (3) height h3 (h3＜h2), fourth stage compression (4) height h4 (h4＜h3), level V compression (5) height h5 (h5＜h4), the 6th grade of compression (6) height h6 (h6＜h5), the 7th grade of compression (7) height h6 (h7＜h6), the 8th grade of compression (11) height h8 (h8＜h7), the 9th grade of compression (10) height h9 (h9＜h8), the tenth grade of compression (9) height h10 (h10＜h9), movable orbiting scroll (B), quiet whirlpool dish (A) is meshing with each other, working principle is same as the single stage compressor working principle: identical the scroll molded line parameter, phase difference π, the basic circle center is after the movable orbiting scroll (B) of r (value of r is relevant with involute pitch and wall thickness) is assembled with quiet whirlpool dish (A), can form several ten grades of crescent shape cavity volumes to sealing, CH1 23456789 10 1,112 13 14 15 16 17 18 19 20 21 22 23 grades all are volume compression chambers in the accompanying drawing, when movable orbiting scroll (B) center (referring to the basic circle center) is the circular orbit motion of r around dish (A) center, quiet whirlpool (referring to the basic circle center) as radius, the cavity volume of these sealings enlarges accordingly or dwindles, and has this to realize the suction of gas, the purpose of compression and exhaust.Low-pressure gas enters air aspiration cavity from the peripheral slit of the quiet whirlpool dish of movable orbiting scroll (B) (A), is discharged by the vent ports (8) of dish (A) center, quiet whirlpool after compression.Scroll wrap be meshing with each other form several to a dynamic compression chamber continuously.

A kind of ten grades of scroll compressors, it is characterized in that, first order compression (1), second level compression (2), third level compression (3), fourth stage compression (4), level V compression (5), the 6th grade of compression (6), the 7th grade of compression (7), the 8th grade of compression (11), the 9th grade of compression (10), the tenth grade of compression (9) worked simultaneously, first order compression chamber volume is greater than second level compression chamber volume, second level compression chamber volume is greater than third level compression chamber volume, know thus, previous stage compression chamber volume is greater than back one-level compression chamber volume, volume ratio is greater than the single stage compressor volume ratio, and it is according to being:

$\mathrm{Vs}=\mathrm{\πP}(P-2t)h_1(2n-1-\frac{\mathrm{\θs}}{180})$

θs＝[n-int(n)]×360

$\mathrm{Ve}=\mathrm{\πP}(P-2t)h_{10}(3-\frac{{\mathrm{\θ}}^{*}}{\mathrm{\π}})$

P＝2πr

Annotate: Vs is an aspirated volume; Ve is a delivery space; N is the vortex number of turns; Int (n) is the n bracket function; θ ^*Be the exhaust angle; R is a Base radius.

Vortex body height with one-level is the same, first order vortex body height h1＞second level vortex body height h2＞third level vortex body height h3＞...＞the ten grade of vortex body height h10.

$v^{\′}=\frac{\mathrm{Vs}}{\mathrm{Ve}}=\frac{(2n-1-\mathrm{\θs}/\mathrm{\π})}{(3-{\mathrm{\θ}}^{*}/\mathrm{\π})}\×\frac{h_1}{h_{10}}>\frac{(2n-1-\mathrm{\θs}/\mathrm{\π})}{(3-{\mathrm{\θ}}^{*}/\mathrm{\π})}=v$

Annotate: v ' is the volume ratio of a kind of ten grades of scroll compressors; V ordinary single-stage minimum cylinder volume ratio; Volume ratio is also greater than two stage compressor volume ratio at present when h1/h10＞2, and structure is simpler.

Claims (4)

1. ten grades of scroll compressors, mainly comprise: movable orbiting scroll (B), quiet whirlpool dish (A), partition ring (C), eccentric shaft (D), it is characterized in that:, phase difference π identical the scroll molded line parameter, basic circle center are after the movable orbiting scroll (B) of r and quiet whirlpool dish (A) assembling, can form ten grades of crescent shape volume compression chambers of sealing, low-pressure gas enters air aspiration cavity from the peripheral slit of the quiet whirlpool dish of movable orbiting scroll (B) (A), is discharged by the vent ports (8) of dish (B) center, quiet whirlpool after compression.

2. a kind of ten grades of scroll compressors according to claim 1, it is characterized in that: first order compression (1), second level compression (2), third level compression (3), fourth stage compression (4), level V compression (5), the 6th grade of compression (6), the 7th grade of compression (7), the 8th grade of compression (11), the 9th grade of compression (10), the tenth grade of compression (9) are worked simultaneously, from first order compression air-breathing after progressively compression, discharge gas medium to the tenth grade of compression place exhaust port.

3. a kind of ten grades of scroll compressors according to claim 1, it is characterized in that: first order compression chamber volume is greater than second level compression chamber volume, second level compression chamber volume is greater than third level compression chamber volume, know thus, previous stage compression chamber volume is greater than back one-level compression chamber volume, volume ratio is greater than the single stage compressor volume ratio, and it is according to being:

$\mathrm{Vs}=\mathrm{\πP}(P-2t)h_1(2n-1-\frac{\mathrm{\θs}}{180})$

θs＝[n-int(n)]×360

$\mathrm{Ve}=\mathrm{\πP}(P-2t)h_{10}(3-\frac{{\mathrm{\θ}}^{*}}{\mathrm{\π}})$

P＝2πr

Vortex body height with one-level is the same, first order vortex body height h1＞second level vortex body height h2＞third level vortex body height h3＞fourth stage vortex body height h4＞level V vortex body height h5＞the 6th grade of vortex body height h6＞7th grade vortex body height h7＞8th grade vortex body height h8＞9th grade vortex body height h9＞tenth grade vortex body height h10.By the volume ratio formula:

$v^{\′}=\frac{\mathrm{Vs}}{\mathrm{Ve}}=\frac{(2n-1-\mathrm{\θs}/\mathrm{\π})}{(3-{\mathrm{\θ}}^{*}/\mathrm{\π})}\×\frac{h_1}{h_{10}}>\frac{(2n-1-\mathrm{\θs}/\mathrm{\π})}{(3-{\mathrm{\θ}}^{*}/\mathrm{\π})}=v$

Volume ratio is also greater than two stage compressor volume ratio at present when h1/h10＞2, and structure is simpler.

4. a kind of ten grades of scroll compressors according to claim 1 is characterized in that: movable orbiting scroll (B), quiet whirlpool dish (A) be meshing with each other form several to ten grades of continuous dynamic compression chambeies.

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