CN202266418U - Eleven-stage scroll compressor - Google Patents

Abstract

The utility model provides an eleven-stage scroll compressor which belongs to the technical field of mechanical equipment design philosophy. The eleven-stage scroll compressor mainly comprises mobile scroll pans, static scroll pans, partition rings and eccentric shafts. The mobile scroll pans and the static scroll pans, which have identical scroll profile parameters, a Pi phase difference and an r base circle centre distance, are assembled for forming multiple closed eleven-stage crescent shape cubage cavities. When the mobile scroll pan centres (base circle centres) circle at r radius around the static scroll pan centres (base circle centres), the closed cubage cavities are enlarged or reduced correspondingly, thereby sucking air, compressing and exhausting. 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, the tenth stage compression and the eleventh stage compression work simultaneously, the low-pressure gas is sucked in a suction cavity from the periphery gap of the mobile scroll pans and the static scroll pans, and then the low-pressure gas is exhausted from exhaust holes arranged on the centres of the static scroll pans after being compressed. The eleven-stage scroll compressor has the advantages of simple structure, small size, high volume utilization rate and compression ratio, stable running, low noise and the like. The eleven-stage scroll compressor can be widely used in air-conditioner equipment and refrigerating units.

Description

Ten one-level scroll compressors

Technical field

The utility model is specifically related to ten one-level 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 arranged.Nowadays, scroll compressor has been widely used in the air-conditioning and refrigeration unit of middle and small scale.But existing technology is mainly U.S.A, 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 increasingly high present of performance requirement, its compression ratio far can not reach requirement.

Existing two-stage scroll compressor, like 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 through 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.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 purpose of the utility model is to overcome the deficiency of traditional single stage, existing two stage compressor, and ten one-level scroll compressors are provided, and 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 utility model is to adopt following technical proposals to realize: the utility model ten one-level scroll compressors mainly comprise: movable orbiting scroll, quiet whirlpool dish, partition ring, eccentric shaft.The working principle of ten one-level 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 one-level 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 has this to realize the purpose of suction, compression and the exhaust of gas.Low-pressure gas gets into 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.

The utility model mainly contains following beneficial effect after adopting technique scheme:

This ten one-level compressor compresses processes be 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, the tenth grade compress and the tenth one-level is compressed 11 parts.First order compression is air-breathing and warp 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 makes the gas medium compression ratio increase rapidly; Compression successively; When the tenth one-level was compressed, compression ratio increased again, reaches the high compression effect at last.Thereby make these ten one-level scroll compressors have higher capacity utilization and compression ratio than single-stage scroll compressor and present two stage compressor.

2. these ten one-level 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 11 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

Below in conjunction with accompanying drawing and embodiment the utility model is further specified

Fig. 1 is the transverse cross-sectional view of the utility model

Fig. 2 is the axial section of the utility model

Among the figure: the quiet whirlpool of A dish, B movable orbiting scroll, C cross, 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, 12 the 8th grades of compressions; 11 the 9th grades of compressions, 10 the tenth grades of compressions, the compression of 9 the tenth one-levels, 8 exhaust ports.

Embodiment

Below in conjunction with embodiment, further specify the utility model.

Embodiment 1

Shown in Figure of description 1, ten one-level scroll compressors mainly comprise: movable orbiting scroll, quiet whirlpool dish, partition ring, eccentric shaft.It is characterized in that: movable orbiting scroll (B), quiet whirlpool dish (A) structure is established the high h1 of being of ordinary single-stage scroll molded line shown in Figure of description; The height of first order compression (1) also is h1 among Fig. 4; Second level compression (2) highly be h2 (h2＜h1), (h3＜h2), the fourth stage compress (4) highly h4 (h4＜h3) to third level compression (3) height 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 (12) height h8 (h8＜h7); The 9th grade of compression (11) height h9 (h9＜h8); (h10＜h9), (h11＜h10), movable orbiting scroll (B), quiet whirlpool dish (A) are meshing with each other the tenth one-level compression (9) height h11 the tenth grade of compression (10) height h10; Working principle is same as the single stage compressor working principle:, phase difference π identical the scroll molded line parameter, basic circle center are after the movable orbiting scroll (B) of r (value of r is relevant with involute pitch and wall thickness) and quiet whirlpool are coiled (A) and assembled; Can form several ten one-level crescent shape cavity volumes to sealing, CH1 23456789 10 11 12 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 purpose of suction, compression and the exhaust of gas.Low-pressure gas gets into 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.

Ten one-level 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 (12), the 9th grade of compression (11), the tenth grade of compression (10), the tenth one-level compression (9) are worked simultaneously, and first order compression chamber volume is greater than second level compression chamber volume, and 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, and 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

$\mathrm{Ve}=\mathrm{\πP}(P-2t)h_{11}(3-\frac{{\mathrm{\θ}}^{*}}{\mathrm{\π}})$

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＞...＞the ten one-level vortex body height h11.

$v^{\′}=\frac{\mathrm{Vs}}{\mathrm{Ve}}=\frac{(2n-1-\mathrm{\θs}/\mathrm{\π})}{(3-{\mathrm{\θ}}^{*}/\mathrm{\π})}\×\frac{h_1}{h_{11}}>\frac{(2n-1-\mathrm{\θs}/\mathrm{\π})}{(3-{\mathrm{\θ}}^{*}/\mathrm{\π})}=v$

Annotate: v ' is the volume ratio of ten one-level scroll compressors; V ordinary single-stage minimum cylinder volume ratio; Volume ratio is also greater than secondary compression stage volume ratio at present when h1/h11＞2, and structure is simpler.

Claims (4)

1. one-level scroll compressor; 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 one-level crescent shape volume compression chambers of sealing, low-pressure gas gets into 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. ten one-level 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 (12), the 9th grade of compression (11), the tenth grade of compression (10), the tenth one-level compression (9) are worked simultaneously; From first order compression air-breathing after progressively compression, discharge gas medium to the tenth one-level compression place exhaust port.

3. ten one-level 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 knows thus that greater than the third level compression chamber volume 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:

θs＝[n-int(n)]×360

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＞...＞the ten one-level vortex body height h11, by the volume ratio formula:

Volume ratio is also greater than secondary scroll compressor volume ratio at present when h1/h11＞2, and structure is simpler.

4. ten one-level 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 one-level continuous dynamic compression chambers.

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