EP1957798A1 - Schraubenkompressor - Google Patents
SchraubenkompressorInfo
- Publication number
- EP1957798A1 EP1957798A1 EP06762002A EP06762002A EP1957798A1 EP 1957798 A1 EP1957798 A1 EP 1957798A1 EP 06762002 A EP06762002 A EP 06762002A EP 06762002 A EP06762002 A EP 06762002A EP 1957798 A1 EP1957798 A1 EP 1957798A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- profile
- rotors
- ribs
- screw compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000005452 bending Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/082—Details specially related to intermeshing engagement type pumps
- F04C18/084—Toothed wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2220/00—Application
- F04C2220/40—Pumps with means for venting areas other than the working chamber, e.g. bearings, gear chambers, shaft seals
Definitions
- the invention relates to a screw compressor with two screw rotors which are rotatably mounted axially parallel in a rotor housing, each of which has a profile section with helically running ribs and grooves.
- the rotors intermesh with their ribs and grooves in a meshing and sealing manner, and in operation gas volumes enclosed between them and the rotor housing are conveyed and compressed.
- the present invention aims to provide a screw compressor which is suitable for compressing gas to very high pressures, typically in the range from 30 to 50 bar, and which is in particular the last stage of a multi-stage, in particular three-stage Compressor unit can be operated.
- the rotors are exposed to strong transverse axial forces due to the gas volume enclosed between them and the housing under high pressure, which act in the sense of a deflection of the rotors. This can impair the seal between the rotors and thus lead to a loss in efficiency.
- the object of the invention is therefore to provide a screw compressor which is particularly suitable for operation at high compression pressures.
- Figure 1 is a partially sectioned view of a screw compressor according to the invention.
- FIG. 2 shows a perspective illustration of the rotors of the screw compressor according to FIG. 1.
- Figure 3 shows the rotor profile of the two rotors in the perpendicular cross section.
- the screw compressor shown as an exemplary embodiment in FIG. 1 has a rotor housing 1, shown in section, in which two rotors 3 and 5 are rotatably mounted in parallel axes.
- the axes of rotation of the rotors 3, 5 lie in a common vertical plane, which is also the sectional plane for the representation of the rotor housing 1.
- Each rotor has a profile section 7 or 9, which has a profile with helically extending ribs or grooves, the ribs and grooves of the two profile sections 7, 9 intermeshing.
- Shaft journals 7a, 7b, 9a, 9b adjoin the profile sections 7, 9, and sealing rings 11 cooperate with their circumferential surface in order to seal the rotor in the rotor housing 1.
- the shaft journals 7a, 7b, 9a, 9b are also rotatably supported in the rotor housing 1 by bearings 13, 15. - J -
- the upper rotor 3 in FIG. 1 is the main rotor and has at its left end in FIG. 1 an extension 7c of its shaft journal which is intended to receive a drive gear (not shown) which meshes with a corresponding gear of a drive gear (not shown) to drive the rotor 3 to rotate.
- the two rotors 3, 5 have two meshing gears 17, 19 which form a synchronizing gear which rotates from the upper rotor 3 to the lower rotor 5, which is the secondary rotor, in the desired speed ratio transmits and ensures that the profile sections 7, 9 of the rotors mesh without contact.
- the screw compressor described is preferably dry-running, ie no oil is supplied to the compressor chamber for lubrication, cooling or sealing.
- the rotor profiles engage in a contact-free and yet sealing manner. This is advantageous for all applications in which it is important that the compressed gas is completely free of oil. Oil is only outside the compressor room, i.e. H. outside the area sealed by the seals 1 1, e.g. B. for lubricating the (not shown) drive gear, the bearings 13, 15 and the synchronous gear 17, 19 supplied.
- the two rotors 3, 5 of the screw compressor of Figure 1 are shown separately in perspective. It can be seen from FIG. 2 that the rotor 3, which is the main rotor, has a profile section 7, the profile of which is formed by six helically running ribs T.
- the sum of the numbers of the helical ribs 7 ', 9' of the two rotors, i. H. the sum of the "number of teeth" is 14.
- FIG. 2 Also shown in FIG. 2 are the areas 7a, 7b, 9a, 9b of the shaft journals with a diameter (D, D ') which adjoin the profile section 7 or 9 of each of the rotors 3, 5 on both sides and which have a diameter (D, D') which is more than half the outer diameter of the respective profile section.
- Figure 3 shows the profile sections 7, 9 of the two rotors in the axial section.
- the profile 7 of the main rotor has six helical ribs T, which are separated from one another by grooves 7 ".
- the top surfaces of the ribs T lie on the outer enveloping circle Ka of the profile with the diameter Da.
- the bottom surfaces of the grooves 7" lie on the inner circle Ki with the diameter Di.
- the radial distance between the circles Ka and Ki is called the rib height or tooth height H. This is not larger, preferably less than 0.15 times the diameter Da of the outer circle Ka. The same applies to the eight ribs 9 'and the grooves 9 "separating them of the lower rotor (secondary rotor) 9, ie the tooth height is also here H not greater than 0.15 times the outer profile diameter Da.
- the suction space 10 which is formed in the rotor housing 1 adjacent to the left end of the profile sections 7, 9 in FIG. 1, is supplied with the gas to be compressed, in particular air, preferably from one or more upstream Compressor stages (not shown) is already precompressed to an intermediate pressure, for example to a pressure in the range from 10 to 15 bar, preferably 12 bar.
- This precompressed gas is conveyed through the profile sections 7, 9 of the two rotors 3, 5 to the right in FIG. 1 to an outlet (not shown) and is compressed to a final pressure which is preferably in the range from 30 to 50 bar, in particular at about Is 40 bar.
- the rotors of the screw compressor are designed to be highly insensitive to the transverse axial forces generated by the compressed gas at these high pressures.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Supercharger (AREA)
- Electromagnetic Pumps, Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005058698 | 2005-12-08 | ||
PCT/EP2006/005556 WO2007065484A1 (de) | 2005-12-08 | 2006-06-09 | Schraubenkompressor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1957798A1 true EP1957798A1 (de) | 2008-08-20 |
EP1957798B1 EP1957798B1 (de) | 2011-02-09 |
Family
ID=36763690
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06754262A Withdrawn EP1957799A1 (de) | 2005-12-08 | 2006-06-09 | Schraubenkompressor |
EP06754260.5A Active EP1957797B1 (de) | 2005-12-08 | 2006-06-09 | Schraubenkompressor mit kühlmantel |
EP06754261.3A Active EP1979618B1 (de) | 2005-12-08 | 2006-06-09 | Mehrstufiges schraubenkompressoraggregat |
EP06762002A Active EP1957798B1 (de) | 2005-12-08 | 2006-06-09 | Schraubenkompressor |
Family Applications Before (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06754262A Withdrawn EP1957799A1 (de) | 2005-12-08 | 2006-06-09 | Schraubenkompressor |
EP06754260.5A Active EP1957797B1 (de) | 2005-12-08 | 2006-06-09 | Schraubenkompressor mit kühlmantel |
EP06754261.3A Active EP1979618B1 (de) | 2005-12-08 | 2006-06-09 | Mehrstufiges schraubenkompressoraggregat |
Country Status (8)
Country | Link |
---|---|
US (4) | US7713039B2 (de) |
EP (4) | EP1957799A1 (de) |
CN (2) | CN101321955A (de) |
AT (1) | ATE498071T1 (de) |
DE (1) | DE502006008894D1 (de) |
ES (1) | ES2359015T3 (de) |
HK (1) | HK1127111A1 (de) |
WO (4) | WO2007065485A1 (de) |
Families Citing this family (23)
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US7669586B2 (en) * | 2007-05-01 | 2010-03-02 | Gm Global Technology Operations, Inc. | Vented gear drive assembly for a supercharger |
US20090142212A1 (en) * | 2007-12-03 | 2009-06-04 | Paul Xiubao Huang | Rotary blower with noise abatement jacket enclosure |
CN101498304B (zh) * | 2009-03-11 | 2011-06-15 | 宁波鲍斯能源装备股份有限公司 | 一种煤层气双螺杆压缩机组 |
DE102009019220B4 (de) * | 2009-04-30 | 2013-04-11 | Leistritz Pumpen Gmbh | Schraubenspindelpumpe |
US8339714B2 (en) | 2010-10-13 | 2012-12-25 | Olympus Imaging Corp. | Zoom lens and imaging apparatus incorporating the same |
JP5777379B2 (ja) * | 2011-04-05 | 2015-09-09 | 株式会社日立産機システム | 空気圧縮機 |
CN102322421B (zh) * | 2011-08-29 | 2014-03-12 | 骆贻红 | 车载无油螺杆空气压缩机及其油路自循环冷却方法 |
CN103527481B (zh) * | 2013-10-30 | 2015-12-16 | 上海齐耀螺杆机械有限公司 | 一种螺杆压缩机 |
US9951761B2 (en) | 2014-01-16 | 2018-04-24 | Ingersoll-Rand Company | Aerodynamic pressure pulsation dampener |
JP6228868B2 (ja) * | 2014-03-10 | 2017-11-08 | 株式会社神戸製鋼所 | スクリュ圧縮機 |
US9828995B2 (en) | 2014-10-23 | 2017-11-28 | Ghh Rand Schraubenkompressoren Gmbh | Compressor and oil drain system |
DE102014019117B4 (de) * | 2014-12-19 | 2022-02-24 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Druckluftversorgungseinrichtung für Fahrzeug-Druckluftanlagen mit wenigstens einem Gehäuse aus Kunststoff |
US9803639B2 (en) * | 2014-12-19 | 2017-10-31 | Ghh-Rand Schraubenkompressoren Gmbh | Sectional sealing system for rotary screw compressor |
WO2016201173A1 (en) * | 2015-06-11 | 2016-12-15 | Eaton Corporation | Supercharger having constant lead helix angle timing gears |
CN105386972B (zh) * | 2015-12-09 | 2017-05-17 | 合肥工业大学 | 一种具有动密封结构的螺杆真空泵 |
US10718334B2 (en) | 2015-12-21 | 2020-07-21 | Ingersoll-Rand Industrial U.S., Inc. | Compressor with ribbed cooling jacket |
US10451061B2 (en) | 2016-05-06 | 2019-10-22 | Ingersoll-Rand Company | Compressor having non-contact and contact seals |
CN108071586A (zh) * | 2016-11-14 | 2018-05-25 | 上海汉钟精机股份有限公司 | 齿型转子组 |
TWI624596B (zh) * | 2017-03-15 | 2018-05-21 | 亞台富士精機股份有限公司 | 可被遠端監控的幫浦機台及幫浦監控系統 |
EP3382203B1 (de) | 2017-03-30 | 2024-05-15 | Roper Pump Company LLC | Exzenterschneckenpumpe mit integriertem heizmantel |
CN108644117A (zh) * | 2018-07-25 | 2018-10-12 | 宁波鲍斯能源装备股份有限公司 | 一种三级螺杆传动结构及其螺杆压缩机 |
CN109139456B (zh) * | 2018-09-20 | 2024-08-02 | 宁波鲍斯能源装备股份有限公司 | 一种双级喷水螺杆主机 |
CN110425133A (zh) * | 2019-07-26 | 2019-11-08 | 宁波鲍斯能源装备股份有限公司 | 螺杆涡旋水平式三级压缩机 |
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-
2006
- 2006-06-09 US US12/094,388 patent/US7713039B2/en active Active
- 2006-06-09 EP EP06754262A patent/EP1957799A1/de not_active Withdrawn
- 2006-06-09 AT AT06762002T patent/ATE498071T1/de active
- 2006-06-09 US US12/094,363 patent/US7690901B2/en active Active
- 2006-06-09 DE DE502006008894T patent/DE502006008894D1/de active Active
- 2006-06-09 US US12/094,380 patent/US20080286129A1/en not_active Abandoned
- 2006-06-09 CN CNA2006800452708A patent/CN101321955A/zh active Pending
- 2006-06-09 WO PCT/EP2006/005557 patent/WO2007065485A1/de active Application Filing
- 2006-06-09 WO PCT/EP2006/005559 patent/WO2007065487A1/de active Application Filing
- 2006-06-09 CN CN200680045196XA patent/CN101321954B/zh not_active Expired - Fee Related
- 2006-06-09 EP EP06754260.5A patent/EP1957797B1/de active Active
- 2006-06-09 ES ES06762002T patent/ES2359015T3/es active Active
- 2006-06-09 WO PCT/EP2006/005556 patent/WO2007065484A1/de active Application Filing
- 2006-06-09 EP EP06754261.3A patent/EP1979618B1/de active Active
- 2006-06-09 WO PCT/EP2006/005558 patent/WO2007065486A1/de active Application Filing
- 2006-06-09 EP EP06762002A patent/EP1957798B1/de active Active
-
2009
- 2009-06-03 HK HK09104996.7A patent/HK1127111A1/xx not_active IP Right Cessation
-
2012
- 2012-09-14 US US13/618,595 patent/US9091268B2/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2007065484A1 * |
Also Published As
Publication number | Publication date |
---|---|
US7713039B2 (en) | 2010-05-11 |
WO2007065486A1 (de) | 2007-06-14 |
US7690901B2 (en) | 2010-04-06 |
EP1957797A1 (de) | 2008-08-20 |
ES2359015T3 (es) | 2011-05-17 |
US20080286129A1 (en) | 2008-11-20 |
CN101321955A (zh) | 2008-12-10 |
EP1957799A1 (de) | 2008-08-20 |
US9091268B2 (en) | 2015-07-28 |
WO2007065487A1 (de) | 2007-06-14 |
US20090004036A1 (en) | 2009-01-01 |
WO2007065484A1 (de) | 2007-06-14 |
CN101321954A (zh) | 2008-12-10 |
EP1957797B1 (de) | 2016-09-28 |
EP1957798B1 (de) | 2011-02-09 |
WO2007065485A1 (de) | 2007-06-14 |
CN101321954B (zh) | 2012-06-13 |
HK1127111A1 (en) | 2009-09-18 |
DE502006008894D1 (de) | 2011-03-24 |
US20130011285A1 (en) | 2013-01-10 |
EP1979618B1 (de) | 2016-04-27 |
EP1979618A1 (de) | 2008-10-15 |
US20080286138A1 (en) | 2008-11-20 |
ATE498071T1 (de) | 2011-02-15 |
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