WO2002033260A1 - Compresseur pour un refrigerant dans un circuit de refroidissement - Google Patents
Compresseur pour un refrigerant dans un circuit de refroidissement Download PDFInfo
- Publication number
- WO2002033260A1 WO2002033260A1 PCT/EP2001/011235 EP0111235W WO0233260A1 WO 2002033260 A1 WO2002033260 A1 WO 2002033260A1 EP 0111235 W EP0111235 W EP 0111235W WO 0233260 A1 WO0233260 A1 WO 0233260A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- compressor
- monitoring device
- compressor according
- drive unit
- unit
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
- F04B39/0207—Lubrication with lubrication control systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/10—Other safety measures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2201/00—Pump parameters
- F04B2201/04—Carter parameters
- F04B2201/0402—Lubricating oil temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2201/00—Pump parameters
- F04B2201/08—Cylinder or housing parameters
- F04B2201/0802—Vibration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2203/00—Motor parameters
- F04B2203/02—Motor parameters of rotating electric motors
- F04B2203/0205—Temperature
Definitions
- the invention relates to a compressor for refrigerants in a cooling circuit with a drive unit designed in particular as an electric motor, a compressor unit formed in particular by a piston compressor, preferably lubricated via an oil circuit, and a compressor housing for receiving at least the compressor unit.
- the object of the invention is to improve a compressor of the type specified at the outset in such a way that high operational reliability is achieved with simple means.
- the invention is based on the idea of detecting malfunctions indirectly via the occurrence of body vibrations and possibly counteracting them. Accordingly, a monitoring device for controlling or monitoring the operating state of the Compressor proposed according to mechanical compressor vibrations detected at a measuring point in the area of the compressor housing. This makes it easy to specifically identify compressor-specific problems so that countermeasures can be initiated if necessary.
- the monitoring device has at least one vibration sensor for detecting the compressor vibrations.
- This can advantageously be formed by a piezoelectrically operating acceleration sensor for detecting vibration accelerations.
- the monitoring device has a start-up control stage which is supplied with a start signal when the drive unit starts up. This can respond after a delay time predetermined by a timer after the start signal when impermissible or missing compressor vibrations have been detected, so that serious drive damage can be reliably avoided.
- the monitoring device has an operating control stage, which responds when a preferably empirically determined upper threshold value of the output signal of the vibration sensor is exceeded, for the detection of liquid strikes in the refrigerant.
- the monitoring device has a fault display, preferably formed by light-emitting diodes, and / or an acoustic alarm.
- the monitoring device least has a switching relay to interrupt the power supply to the drive unit.
- a monitoring device for controlling the operating state of the compressor according to the oil temperature detected at a measuring point in the oil circuit. This prevents a cold start and also impermissible operation when the oil temperature is too low.
- the monitoring device has a temperature sensor which intervenes in the oil circuit and a switching stage to which the output signal of the temperature sensor is applied for switching off or enabling the drive unit when the output signal falls below or exceeds a lower limit value.
- an advantageous embodiment provides that the monitoring device has further sensors connected to a common control unit for combined monitoring of operating parameters such as motor winding temperature, compression end temperature in the refrigerant and oil pressure in the oil circuit.
- the monitoring device can be switched to manual operation stopping the respective monitoring function via switches assigned to individual operating parameters.
- a further improvement is achieved in that the monitoring device can be reset to a normal operating state for a limited number of resets via a reset unit.
- the monitoring device has a coupling which is coupled to a timer, preferably by a program. program routine, software-formed switch-on counter for monitoring the switch-on frequency.
- the monitoring device has a service indicator which is switched as a function of continuously evaluated operating parameters.
- a particularly compact design is achieved in that the monitoring device is arranged in the terminal box provided for the electrical connection of the drive unit.
- the invention is explained in more detail below on the basis of an exemplary embodiment shown schematically in the drawing.
- the single figure shows a section through a compressor for refrigerant with a graphically illustrated monitoring device.
- the compressor serves to compress the refrigerant in a cooling circuit (not specifically shown) and comprises a piston-compressor unit 12 with a drive motor 14, both of which are located in a refrigerant-tight compressor housing 16.
- a monitoring device 18 is provided, which detects various operating parameters via assigned sensors 20, 22, 24, 26 and, if necessary, automatically takes over protective functions.
- the use of the monitoring device according to the invention is also conceivable in so-called open compressors, in which the drive is arranged outside the compressor housing and is not touched by the refrigerant.
- the compressor unit 12 has cylinders 28 in which pistons 30 perform an oscillating stroke movement, with refrigerant being sucked in via a suction port and flow channel 34 on the suction side and via one of them is ejected in the cylinder head 36 in a pressure-tight manner from the pressure-side flow channel 38 and pressure port 40.
- the pistons 30 are connected via connecting rods 43 to a crankshaft 42 which is coupled to the motor shaft 44 of the drive motor 14.
- the drive motor 14, which is designed as an electric motor, has a motor winding 46 which is connected in a terminal box 48 to an external power supply.
- an oil circuit 50 is provided, which communicates with the suction-side flow channel 34 and is thus in contact with the refrigerant flow.
- the monitoring device 18 has a vibration sensor 20 for detecting mechanical body vibrations.
- the vibration sensor 20 is designed as a piezo-electric accelerometer and is firmly connected to the compressor housing 16 in the area of the terminal box 48.
- the cylinder head 36 is also well suited as a measuring point.
- the vibration sensor 20 firstly enables the drive motor 14 to be started up.
- the monitoring device 18 has a start-up control stage 52 which is acted upon by a start signal when the engine is started and which responds after a predetermined delay time when inadmissible or absent compressor vibrations have been detected.
- Such vibrational states can occur, for example, in the event of extreme overload or a significant drop below the permissible undervoltage.
- a further function of the vibration sensor 20 is the detection of liquid strikes, which can occur both in the refrigerant flow of the compressor 10 and in the oil circuit 50 and which are noticeable in large vibration amplitudes of the compressor housing 16.
- an operational control stage 54 is provided in the monitoring device 18. hen which responds when an upper threshold value of the output signal of the vibration sensor 20 determined empirically in regular operation is exceeded.
- the sensors 22, 24, 26 designed as temperature sensors enable integrated monitoring of further possible malfunctions.
- the sensor 22 is provided to detect the oil temperature in the oil circuit 50.
- a downstream switching stage 56 of the monitoring device 18 ensures that the drive motor 14 is only released when a preset temperature is reached.
- the oil temperature can also be saved for service determinations. Further monitoring options exist in the detection of the temperature of the motor winding 46 by means of one or more sensors 24, the compression end temperature via the sensor 26 engaging in the pressure-side flow channel 38 and the oil pressure in the oil circuit 50 via a pressure sensor (not shown).
- the monitoring device For processing and possibly combined evaluation of the sensor signals, the monitoring device has a control unit 58, which is preferably formed by a microprocessor and is connected on the output side to optical and acoustic signal transmitters, not shown. In order to avoid consequential damage, it is provided that the control unit 58 switches off the drive motor 14 via switching relays under certain fault conditions. For manual operation, individual monitoring functions can be stopped using assigned switches.
- a reset button 62 enables manual resetting in the event of a limited number of detected faults in emergency operation.
- the service display 64 signals required maintenance depending on the continuously evaluated operating conditions.
- the invention relates to a compressor for refrigerants in a cooling circuit with a drive unit 12, a compressor unit 12, preferably lubricated via an oil circuit 50, and a compressor housing 16 for receiving at least the compressor unit 12 and, if appropriate, the drive unit 12
- a monitoring device 18 is provided which controls the operating state of the compressor in accordance with mechanical compressor vibrations detected at a measuring point in the area of the compressor housing 16.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Compressor (AREA)
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002213976A AU2002213976A1 (en) | 2000-10-18 | 2001-09-28 | Compressor for a refrigerating agent in a cooling circuit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10051752.8 | 2000-10-18 | ||
DE2000151752 DE10051752A1 (de) | 2000-10-18 | 2000-10-18 | Verdichter für Kältemittel in einem Kühlkreislauf |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002033260A1 true WO2002033260A1 (fr) | 2002-04-25 |
Family
ID=7660270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/011235 WO2002033260A1 (fr) | 2000-10-18 | 2001-09-28 | Compresseur pour un refrigerant dans un circuit de refroidissement |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2002213976A1 (fr) |
DE (1) | DE10051752A1 (fr) |
WO (1) | WO2002033260A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007513321A (ja) * | 2003-05-22 | 2007-05-24 | ファールプール・ソシエダッド・アノニマ | センサアッセンブリ,流体ポンプ及び冷却器 |
WO2007068448A1 (fr) * | 2005-12-13 | 2007-06-21 | Brueninghaus Hydromatik Gmbh | Dispositif et procede de surveillance de l'etat d'unites de refoulement hydrostatique |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20308045U1 (de) * | 2003-05-22 | 2003-08-28 | Bauer Kompressoren GmbH, 81477 München | Kabelloses Betriebsüberwachungsgerät |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4336001A (en) * | 1978-09-19 | 1982-06-22 | Frick Company | Solid state compressor control system |
JPS60119390A (ja) * | 1983-11-30 | 1985-06-26 | Mitsubishi Electric Corp | 冷媒圧縮機 |
JPS62153583A (ja) * | 1985-12-27 | 1987-07-08 | Kyodo Gijutsu Center:Kk | レシプロ形コンプレツサの異常検出方法及び装置 |
JPH03168376A (ja) * | 1989-11-29 | 1991-07-22 | Hitachi Ltd | 空気圧縮機のサービスデータ記憶装置 |
US5179857A (en) * | 1990-05-31 | 1993-01-19 | Kistler Instrumente Ag | Monitoring system for cyclically operating machines |
JPH10311612A (ja) * | 1997-05-14 | 1998-11-24 | Mitsubishi Electric Corp | 冷凍装置 |
US5975854A (en) * | 1997-05-09 | 1999-11-02 | Copeland Corporation | Compressor with protection module |
US6017192A (en) * | 1996-10-28 | 2000-01-25 | Clack; Richard N. | System and method for controlling screw compressors |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1065218A (en) * | 1965-09-04 | 1967-04-12 | Vilter Manufacturing Corp | Compressor protection system |
ES234771Y (es) * | 1978-03-17 | 1978-10-01 | Dispositivo de seguridad y control para grupos compresores de maquinas frigorificas. | |
CH641907A5 (en) * | 1979-03-27 | 1984-03-15 | Burckhardt Ag Maschf | Device for monitoring the operational characteristic of the valves of a piston compressor |
DE3325384C2 (de) * | 1983-07-14 | 1986-11-20 | Danfoss A/S, Nordborg | Übertemperatur-Schutzvorrichtung für einen Kältemittelverdichter |
JPH055267Y2 (fr) * | 1987-05-19 | 1993-02-10 | ||
US5059097A (en) * | 1989-01-26 | 1991-10-22 | Diesel Kiki Co. Ltd. | Variable capacity wobble plate compressor |
-
2000
- 2000-10-18 DE DE2000151752 patent/DE10051752A1/de not_active Withdrawn
-
2001
- 2001-09-28 AU AU2002213976A patent/AU2002213976A1/en not_active Abandoned
- 2001-09-28 WO PCT/EP2001/011235 patent/WO2002033260A1/fr active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4336001A (en) * | 1978-09-19 | 1982-06-22 | Frick Company | Solid state compressor control system |
JPS60119390A (ja) * | 1983-11-30 | 1985-06-26 | Mitsubishi Electric Corp | 冷媒圧縮機 |
JPS62153583A (ja) * | 1985-12-27 | 1987-07-08 | Kyodo Gijutsu Center:Kk | レシプロ形コンプレツサの異常検出方法及び装置 |
JPH03168376A (ja) * | 1989-11-29 | 1991-07-22 | Hitachi Ltd | 空気圧縮機のサービスデータ記憶装置 |
US5179857A (en) * | 1990-05-31 | 1993-01-19 | Kistler Instrumente Ag | Monitoring system for cyclically operating machines |
US6017192A (en) * | 1996-10-28 | 2000-01-25 | Clack; Richard N. | System and method for controlling screw compressors |
US5975854A (en) * | 1997-05-09 | 1999-11-02 | Copeland Corporation | Compressor with protection module |
JPH10311612A (ja) * | 1997-05-14 | 1998-11-24 | Mitsubishi Electric Corp | 冷凍装置 |
Non-Patent Citations (4)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 009, no. 275 (M - 426) 2 November 1985 (1985-11-02) * |
PATENT ABSTRACTS OF JAPAN vol. 011, no. 385 (M - 651) 16 December 1987 (1987-12-16) * |
PATENT ABSTRACTS OF JAPAN vol. 015, no. 407 (M - 1169) 17 October 1991 (1991-10-17) * |
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 02 26 February 1999 (1999-02-26) * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007513321A (ja) * | 2003-05-22 | 2007-05-24 | ファールプール・ソシエダッド・アノニマ | センサアッセンブリ,流体ポンプ及び冷却器 |
US8342811B2 (en) * | 2003-05-22 | 2013-01-01 | Whirlpool S.A. | Sensor assembly, a fluid pump and a cooler |
WO2007068448A1 (fr) * | 2005-12-13 | 2007-06-21 | Brueninghaus Hydromatik Gmbh | Dispositif et procede de surveillance de l'etat d'unites de refoulement hydrostatique |
US7860683B2 (en) | 2005-12-13 | 2010-12-28 | Brueninghaus Hydromatik Gmbh | Device and method for state monitoring in hydrostatic displacement units |
Also Published As
Publication number | Publication date |
---|---|
DE10051752A1 (de) | 2002-05-02 |
AU2002213976A1 (en) | 2002-04-29 |
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