EP0389036A1 - Schraubenverdichter und sein Betriebsverfahren - Google Patents

Schraubenverdichter und sein Betriebsverfahren Download PDF

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Publication number
EP0389036A1
EP0389036A1 EP90200581A EP90200581A EP0389036A1 EP 0389036 A1 EP0389036 A1 EP 0389036A1 EP 90200581 A EP90200581 A EP 90200581A EP 90200581 A EP90200581 A EP 90200581A EP 0389036 A1 EP0389036 A1 EP 0389036A1
Authority
EP
European Patent Office
Prior art keywords
stator housing
compressor
water
gas
injected
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
Application number
EP90200581A
Other languages
English (en)
French (fr)
Other versions
EP0389036B1 (de
Inventor
Hans Hendrik Jantzen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Grass-Air Holding BV
Original Assignee
Grass-Air Holding BV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Grass-Air Holding BV filed Critical Grass-Air Holding BV
Publication of EP0389036A1 publication Critical patent/EP0389036A1/de
Application granted granted Critical
Publication of EP0389036B1 publication Critical patent/EP0389036B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0007—Injection of a fluid in the working chamber for sealing, cooling and lubricating

Definitions

  • the invention relates to a screw compressor with two parallel screws engaging with each other, one of which is driven while the other is carried, surrounded by a stator housing and provided with an inlet for the gas to be compressed and an outlet for the compressed gas, said stator housing also having at least one inlet through which water is injected into the stator housing, and to a method of operation thereof.
  • water only is injected at one point, i.e. near the outlet for the compressed gas.
  • the purpose of the water injection is to lower the temperature of the compressed gas and make it as far as possible the same as the inlet temperature of the gas, in particular air.
  • a so-called oil-free compressor therefore has great advantages, but no practical embodiments are known in practice.
  • the object of the invention is to produce a compressor and a method of operation thereof by means of which it is in fact possible to obtain isothermal compression economically with water injection alone, provided that a number of conditions are met.
  • the screw compressor according to the invention is characterized in that said injection point is located at a place in the stator housing where the pressure is equal to 2 3 ⁇ P plus or minus 0.5 bar, and in that further injection points are provided at a place in the stator housing where the pressure is equal to 3 ⁇ P plus or minus 0.5 bar and at the inlet side of the gas, P being equal to the absolute final pres­sure of the compressor.
  • the water therefore has to be injected simultaneously at several, very specific points.
  • the method according to the invention is characterized in that the quantity of water injected per unit time is between 1% and 2% of the capacity of the compressor, and the temperature of the injected water is at least 5 K lower than the temperature of the gas at the inlet of the compressor.
  • the compressor which is conventional per se, comprises a screw 1 with a driving shaft 2.
  • a screw 3 is in engagement with said screw 1 and in operation is carried by the screw 1. There is no mechanical coupling between the two screws or rotors.
  • the screws 1 and 3 are supported in and enclosed by a stator housing 4.
  • the gas to be compressed is fed in at the lefthand side of the housing 4, through a transverse feed 5 (see Fig. 2).
  • the compressed gas is discharged at the righthand side of the housing 4, through an axial outlet 6.
  • an injection point is located at point A.
  • This injection point A is directed towards the contact face of the rotors 1 and 3.
  • point A lies at a place where the pressure is equal to 2 3 ⁇ P plus or minus 0.5 bar, P being equal to the absolute final pressure at the compressor outlet.
  • the two points B lie at a place where the pressure is equal to 3 ⁇ P plus or minus 0.5 bar.
  • the two points C lie at a place where the pressure is equal to the inlet pressure.
  • the injected quantity of water per unit time must lie between 1% and 2% of the capacity of the compressor.
  • approximately 50% of the total quantity of water must be injected in point A, approximately 20% in each point B, and approximately 5% in each point C.
  • the temperature of the injected water is also of essential impor­tance and must be at least 5 K lower than the temperature of the gas sucked in.
  • the example taken is a compressor with an absolute pressure of 7 bar and a speed of 6,475 rpm.
  • the shaft power is 7.38 kW/m3/min.
  • the shaft power is 6.03 kW/m3/min.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP90200581A 1989-03-21 1990-03-09 Schraubenverdichter und sein Betriebsverfahren Expired - Lifetime EP0389036B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8900694A NL8900694A (nl) 1989-03-21 1989-03-21 Schroefcompressor en werkwijze voor het bedrijven daarvan.
NL8900694 1989-03-21

Publications (2)

Publication Number Publication Date
EP0389036A1 true EP0389036A1 (de) 1990-09-26
EP0389036B1 EP0389036B1 (de) 1993-07-28

Family

ID=19854333

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90200581A Expired - Lifetime EP0389036B1 (de) 1989-03-21 1990-03-09 Schraubenverdichter und sein Betriebsverfahren

Country Status (6)

Country Link
EP (1) EP0389036B1 (de)
AT (1) ATE92158T1 (de)
DE (1) DE69002358T2 (de)
DK (1) DK0389036T3 (de)
ES (1) ES2043243T3 (de)
NL (1) NL8900694A (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993024754A2 (en) * 1992-05-29 1993-12-09 National Power Plc A gas compressor
GB2283543A (en) * 1992-05-29 1995-05-10 Nat Power Plc A gas compressor
WO1996021109A1 (de) * 1994-12-29 1996-07-11 Kirsten Guenter Verdichteranlage
DE19543879A1 (de) * 1995-11-24 1997-05-28 Guenter Kirsten Schraubenverdichter mit Flüssigkeitseinspritzung
USRE37603E1 (en) 1992-05-29 2002-03-26 National Power Plc Gas compressor
US6368091B1 (en) 1998-03-25 2002-04-09 Taiko Kikai Industries Co., Ltd. Screw rotor for vacuum pumps
US6375443B1 (en) * 1998-03-24 2002-04-23 Taiko Kikai Industries Co., Ltd. Screw rotor type wet vacuum pump
WO2018196427A1 (zh) * 2017-04-26 2018-11-01 格力电器（武汉）有限公司 螺杆压缩机、空调装置及制冷装置
WO2019137852A1 (de) * 2018-01-12 2019-07-18 Leybold Gmbh Kompressor
CN111094750A (zh) * 2017-09-04 2020-05-01 株式会社日立产机系统 螺杆压缩机
EP3467315B1 (de) * 2017-10-04 2021-03-24 Ingersoll-Rand Industrial U.S., Inc. Schraubenverdichter mit öleinspritzung in mehreren volumenverhältnissen
US11149733B2 (en) * 2016-08-01 2021-10-19 Atlas Copco Airpower, Naamloze Vennootschap Liquid-injected compressor or expander element and method for controlling the liquid injection of a compressor or expander device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3535057A (en) * 1968-09-06 1970-10-20 Esper Kodra Screw compressor
GB1413426A (en) * 1973-04-09 1975-11-12 Zimmern B Rotary air compressor sets with injection of water
DE2801408A1 (de) * 1978-01-13 1979-07-19 Linde Ag Verfahren und vorrichtung zum kuehlen eines in einem kaeltekreislauf angeordneten verdichters der drehkolbenbauart
DE2853264A1 (de) * 1978-12-09 1980-06-19 Rietschle Masch App Verfahren und einrichtung zur einspritzkuehlung von vakuumpumpen
FR2603666A1 (fr) * 1986-09-10 1988-03-11 Zimmern Bernard Compresseur injecte a commutateur de liquide

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3535057A (en) * 1968-09-06 1970-10-20 Esper Kodra Screw compressor
GB1413426A (en) * 1973-04-09 1975-11-12 Zimmern B Rotary air compressor sets with injection of water
DE2801408A1 (de) * 1978-01-13 1979-07-19 Linde Ag Verfahren und vorrichtung zum kuehlen eines in einem kaeltekreislauf angeordneten verdichters der drehkolbenbauart
DE2853264A1 (de) * 1978-12-09 1980-06-19 Rietschle Masch App Verfahren und einrichtung zur einspritzkuehlung von vakuumpumpen
FR2603666A1 (fr) * 1986-09-10 1988-03-11 Zimmern Bernard Compresseur injecte a commutateur de liquide

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE37603E1 (en) 1992-05-29 2002-03-26 National Power Plc Gas compressor
US5771693A (en) * 1992-05-29 1998-06-30 National Power Plc Gas compressor
WO1993024754A2 (en) * 1992-05-29 1993-12-09 National Power Plc A gas compressor
GB2283543A (en) * 1992-05-29 1995-05-10 Nat Power Plc A gas compressor
WO1993024754A3 (en) * 1992-05-29 1994-03-17 Nat Power Plc A gas compressor
US6102683A (en) * 1994-12-29 2000-08-15 Kirsten; Guenter Compressor installation having water injection and a water treatment device
AU701216B2 (en) * 1994-12-29 1999-01-21 Gunter Kirsten Compressor installation
CN1079504C (zh) * 1994-12-29 2002-02-20 京特·基尔斯滕 压缩机设备
WO1996021109A1 (de) * 1994-12-29 1996-07-11 Kirsten Guenter Verdichteranlage
DE19543879A1 (de) * 1995-11-24 1997-05-28 Guenter Kirsten Schraubenverdichter mit Flüssigkeitseinspritzung
DE19543879C2 (de) * 1995-11-24 2002-02-28 Guenter Kirsten Schraubenverdichter mit Flüssigkeitseinspritzung
US6375443B1 (en) * 1998-03-24 2002-04-23 Taiko Kikai Industries Co., Ltd. Screw rotor type wet vacuum pump
US6368091B1 (en) 1998-03-25 2002-04-09 Taiko Kikai Industries Co., Ltd. Screw rotor for vacuum pumps
US11149733B2 (en) * 2016-08-01 2021-10-19 Atlas Copco Airpower, Naamloze Vennootschap Liquid-injected compressor or expander element and method for controlling the liquid injection of a compressor or expander device
WO2018196427A1 (zh) * 2017-04-26 2018-11-01 格力电器（武汉）有限公司 螺杆压缩机、空调装置及制冷装置
EP3680485A4 (de) * 2017-09-04 2020-12-23 Hitachi Industrial Equipment Systems Co., Ltd. Schraubenverdichter
CN111094750A (zh) * 2017-09-04 2020-05-01 株式会社日立产机系统 螺杆压缩机
CN111094750B (zh) * 2017-09-04 2022-04-15 株式会社日立产机系统 螺杆压缩机
EP3467315B1 (de) * 2017-10-04 2021-03-24 Ingersoll-Rand Industrial U.S., Inc. Schraubenverdichter mit öleinspritzung in mehreren volumenverhältnissen
US11118585B2 (en) 2017-10-04 2021-09-14 Ingersoll-Rand Industrial U.S., Inc. Screw compressor with oil injection at multiple volume ratios
CN114857004A (zh) * 2017-10-04 2022-08-05 英格索兰工业美国公司 具有以多个体积比的油喷射的螺杆式压缩机
US11732715B2 (en) 2017-10-04 2023-08-22 Ingersoll-Rand Industrial U.S., Inc. Screw compressor with oil injection at multiple volume ratios
WO2019137852A1 (de) * 2018-01-12 2019-07-18 Leybold Gmbh Kompressor

Also Published As

Publication number Publication date
ES2043243T3 (es) 1993-12-16
EP0389036B1 (de) 1993-07-28
DE69002358D1 (de) 1993-09-02
DE69002358T2 (de) 1994-02-10
DK0389036T3 (da) 1993-09-27
ATE92158T1 (de) 1993-08-15
NL8900694A (nl) 1990-10-16

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