CN1110635C - Energy-saving compressor with single screw bolt - Google Patents
Energy-saving compressor with single screw bolt Download PDFInfo
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- CN1110635C CN1110635C CN 00107950 CN00107950A CN1110635C CN 1110635 C CN1110635 C CN 1110635C CN 00107950 CN00107950 CN 00107950 CN 00107950 A CN00107950 A CN 00107950A CN 1110635 C CN1110635 C CN 1110635C
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- screw rod
- energy
- compressor
- single screw
- conical surface
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- 230000000694 effects Effects 0.000 abstract description 8
- 238000007906 compression Methods 0.000 description 9
- 230000006835 compression Effects 0.000 description 8
- 238000005265 energy consumption Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000013256 coordination polymer Substances 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The present invention relates to an energy-saving compressor with a single screw rod, which is composed of a main shaft, a machine body, a star wheel and a screw rod, wherein the outer shape of the screw rod is a conic surface or a combination of a conic surface and a cylindrical surface. The present invention has the advantage of good energy-saving effect.
Description
The present invention relates to a kind of energy-saving compressor with single screw bolt, belong to the compressor class, mainly supply the technology compressor of power (as: air compressor), freezing, air-conditioning, heat pump and the various chemical gases of compression to use.
Single screw compressor also claims worm compressor, and the structure of the single screw compressor of prior art is seen Fig. 1, mainly is made up of a screw rod 1 and two star-wheels 2 and body 6.Usually a number of screw rod is 6, and tooth number of star is 11.A number of the big more screw rod of compression ratio is many more.Because of star-wheel symmetry is installed, the stressed complete equilibrium of screw rod, single screw compressor has thus that vibration is little, noise is low, good reliability, life-span are long, advantage such as can under high pressure work.Screw rod turns round a Saturday screw channel all twice engagement, have 12 suctions, exhaust, so the single screw compressor gas is little, air displacement is big, volume is little.Since simple in structure, realize especially easily automatically or computer control.As air compressor, technology compressor, refrigerating machine, air conditioner and heat pump etc., be widely used in fields such as oil, chemical industry, machinery, metallurgy, mine, locomotive, naval vessel, food and pharmacy.USN has made a large amount of demonstrations to existing various compressors and has thought that single screw compressor is the optimal compressor on naval vessel later with contrast, is the unique selection of submarine with the high voltage oil-free compressor.Because external blocking technology, single screw compressor is the unique high-grade machine of failing to introduce of China.
Single screw compressor has advantages such as the little and noise of vibration is low than double-screw compressor, and unique shortcoming is that power savings advantages is not obvious, also is in a disadvantageous position during the float amount.In order to reduce the energy consumption of single screw compressor, huge effort has been made in countries in the world, yet effect is little.The claimant had once declared (the utility model application number: 99248828.1 applications for a patent for invention number: 99122110.9) of " energy-saving single-bolt compressor) " patent after having broken through the key technologies such as profile of tooth, high-precision processing technology and highi degree of accuracy special purpose machine tool of screw rod, star-wheel.This patent adopts " non-wide tooth " technology, and method is simple, energy-saving effect is obvious, and can reduce the volume and weight of compressor.Owing to increased area of contact, improved the rigidity of star-wheel carriage, the corresponding raising of the life-span of engagement pair,, therefore single screw compressor becomes energy-conservation, long-lived compressor.The approval of this patent application will make the single screw compressor technology of China occupy first place in the world, for outlet single screw compressor in enormous quantities is created good condition.Its deficiency is: energy-saving effect is still not ideal enough.
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art part and provide a kind of energy-saving effect better energy-saving compressor with single screw bolt.
Purpose of the present invention can reach by following measure: the present invention is made up of main shaft, body, non-wide dental star wheel and non-wide tooth screw rod, and the profile of screw rod is the conical surface.
The semi-cone angle of the screw rod conical surface is less than or equal to 45 degree.
The bus of the conical surface can be straight line, curve, broken line or their combination in any.
The profile of screw rod is the combination of the conical surface or the conical surface and cylndrical surface.
The drawing of accompanying drawing is described as follows:
Fig. 1 is prior art constructions figure;
Fig. 2 is the figure of four kinds of patterns of CC, CP, PC, the PP of prior art;
Fig. 3 is the structural drawing of air-breathing, the compression and the exhaust of prior art;
Fig. 4 is the screw rod of prior art and the part sectioned view of star-wheel;
Fig. 5 is the part sectioned view of screw rod of the present invention and star-wheel, and the bus of expressing the screw rod conical surface is a straight line;
Fig. 6 is the part sectioned view of screw rod of the present invention and star-wheel, and the bus of expressing the conical surface and cylndrical surface is a straight line;
Fig. 7 is a screw rod part sectioned view of the present invention, and the bus of expressing the conical surface is a curve;
Fig. 8 is a screw rod part sectioned view of the present invention, and the bus of expressing the conical surface is a curve, and the cylndrical surface bus is a straight line;
Fig. 9 is a screw rod part sectioned view of the present invention, and the bus of expressing the conical surface is a broken line;
Figure 10 is a screw rod part sectioned view of the present invention, and the bus of expressing the conical surface is a broken line, and the cylndrical surface bus is a straight line.
The accompanying drawing piece number is represented:
1, screw rod 2, star-wheel 3, main shaft 4, vent ports
5, air aspiration cavity 6, body 7, screw rod 8, star-wheel
The invention will be further described below in conjunction with embodiment and accompanying drawing:
The screw rod of single screw compressor and star-wheel all have C type (cylindrical) and two kinds of shapes of P type (plane shape).The single screw compressor of having formed CC shown in Figure 2, CP, PC, four kinds of forms of PP thus.Wherein, the PP type because of the semi-cone angle of screw rod near 90 degree, axial force is big, because of the excessive axial force of the balance reasons such as uses of two screw combinations must being got up, the PP type is the practical application of end energy so far.
At present most widely used general, output is maximum is CP type single screw compressor.Fig. 3 a, b, c represent its air-breathing, compression and exhaust process respectively.Fig. 4 represents the part section structure of screw rod and star-wheel, and star-wheel tooth 1 has entered the screw rod teeth groove, with teeth groove sealing, the breathing process of the teeth groove that is through with; Star-wheel tooth 2 is just at pressurized gas, and this moment, the pressure of gas was still low; Tooth 3 with gas compression to maximum pressure, and in exhaust.From above gas compression processes as can be seen, gas is to finish at distance screw rod shaft axis position far away in the compression and the exhaust of high pressure section.This position is bigger to quiet square of screw rod shaft axis, so the energy consumption of compressor is also big.
Fig. 5-Figure 10 represents the structure of screw rod of the present invention and star-wheel.For a change above-mentioned situation is keeping under the constant condition of screw rod flute profile, changes the profile of screw rod 7 high voltage terminals into conical surface and (sees that Fig. 5-Figure 10), low voltage terminal still is cylndrical surface (seeing Fig. 6, Fig. 8, Figure 10); Or the profile of the high and low pressure side of screw rod is the conical surface (see figure 5).Even latter event also can have energy-saving effect preferably.This moment, the big end that is compressed in screw rod of gas low pressure stage was finished, and this position is bigger to quiet square of screw rod shaft axis, so the energy consumption of low pressure stage has increased; The compression of high pressure section then is at the screw rod small end, and finish at the less position of a promptly quiet square, and energy consumption has reduced.Because the air pressure of high pressure section is far above low pressure stage, the reduction of high pressure section energy consumption increases far more than the energy consumption of low pressure stage, so from whole process, energy consumption reduces, compression ratio is big more, and is energy-conservation many more.With the most frequently used exhaust pressure is that the single-screw air compressor of 0.7Mpa is an example, and Cable Power Computation shows under the condition that adopts " non-wide tooth ": when the semi-cone angle of screw rod is 20 when spending, and comparable external CP type single screw compressor energy-conservation about 10%; When semi-cone angle is 25 when spending, can save energy about 12%.But the not corresponding increase of energy-saving effect when cone angle is excessive, the axial force of opposite screw rod and the volume of compressor but obviously increase.Therefore semi-cone angle should not surpass 45 degree.Because semi-cone angle is much smaller than the semi-cone angle of nearly 90 degree of PP type, so the suffered axial force of screw rod is also little, screw rod needn't paired use as the PP type, has formed a kind of more energy-conservation new type single screw compressor.
Owing to the profile that has only changed screw rod keeps flute profile constant, the processing technique of screw rod teeth groove and equipment thereof are all unaffected.The present invention had both kept advantages such as the little and noise of single screw compressor vibration is low, had reduced energy consumption again under the condition that does not change the screw rod process equipment significantly.
The bus of the screw rod conical surface can be straight line 9 (seeing Fig. 5 and Fig. 6), curve 10 (seeing Fig. 7 and Fig. 8), broken line 11 (seeing Fig. 9 and Figure 10) or their combination in any.The bus of low voltage terminal (cylndrical surface) is a straight line 12.
The present invention contrasts prior art and has the better advantage of energy-saving effect.
Claims (4)
1, a kind of energy-saving compressor with single screw bolt comprises main shaft, body, non-wide tooth screw rod and non-wide dental star wheel, it is characterized in that the profile of screw rod is the conical surface.
2, energy-saving compressor with single screw bolt according to claim 1 is characterized in that, the semi-cone angle of the screw rod conical surface is less than or equal to 45 degree.
3, energy-saving compressor with single screw bolt according to claim 1 is characterized in that, the bus of the conical surface can be straight line, curve, broken line or their combination in any.
4, energy-saving compressor with single screw bolt according to claim 1 is characterized in that, the profile of screw rod is the combination of the conical surface or the conical surface and cylndrical surface.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00107950 CN1110635C (en) | 2000-06-01 | 2000-06-01 | Energy-saving compressor with single screw bolt |
| GB0026237A GB2356021B (en) | 1999-10-26 | 2000-10-26 | Single screw compressor |
| US09/696,917 US6398532B1 (en) | 1999-10-26 | 2000-10-26 | Single screw compressor |
| PCT/CN2000/000363 WO2001031201A1 (en) | 1999-10-26 | 2000-10-26 | A single screw compressor |
| FR0013908A FR2801349B1 (en) | 1999-10-26 | 2000-10-26 | SINGLE SCREW COMPRESSOR |
| AU10168/01A AU1016801A (en) | 1999-10-26 | 2000-10-26 | A single screw compressor |
| JP2000327483A JP3807922B2 (en) | 1999-10-26 | 2000-10-26 | Single screw compressor with non-equal width teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00107950 CN1110635C (en) | 2000-06-01 | 2000-06-01 | Energy-saving compressor with single screw bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1283751A CN1283751A (en) | 2001-02-14 |
| CN1110635C true CN1110635C (en) | 2003-06-04 |
Family
ID=4579044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00107950 Expired - Fee Related CN1110635C (en) | 1999-10-26 | 2000-06-01 | Energy-saving compressor with single screw bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1110635C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8348649B2 (en) * | 2007-08-07 | 2013-01-08 | Daikin Industries, Ltd. | Single screw compressor and a method for processing a screw rotor |
| ES2639962T3 (en) * | 2007-08-07 | 2017-10-30 | Daikin Industries, Ltd. | Single screw compressor |
| JP4518206B2 (en) * | 2007-12-28 | 2010-08-04 | ダイキン工業株式会社 | Single screw compressor |
| CN101424266B (en) * | 2008-12-22 | 2010-12-15 | 李锦上 | Oblique star wheel single screw compressor |
| CN108131167A (en) * | 2017-12-06 | 2018-06-08 | 西安交通大学 | A kind of centrifugal single screw compressor or expanding machine |
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2000
- 2000-06-01 CN CN 00107950 patent/CN1110635C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1283751A (en) | 2001-02-14 |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG ZHENGLI PRECISION MACHINERY CO., LTD. Free format text: FORMER OWNER: ZHA QIAN; ZHA SHILIANG Effective date: 20080215 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080215 Address after: No. 10 Alex Hua Tian Road, Shunde hi tech Zone (Ronggui), Guangdong, Foshan: 528306 Patentee after: GUANGDONG GANEY PRECISION MACHINERY Co.,Ltd. Address before: No. 35 tea tree road, Shunde, Guangdong, China: 528305 Co-patentee before: Zha Shiliang Patentee before: Zha Qian |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030604 Termination date: 20150601 |
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| EXPY | Termination of patent right or utility model |