DE4115664A1 - Acid detector in refrigerating compressor oil - comprises electrodes fixed in housing in place of oil drain plug - Google Patents

Acid detector in refrigerating compressor oil - comprises electrodes fixed in housing in place of oil drain plug

Info

Publication number
DE4115664A1
DE4115664A1 DE19914115664 DE4115664A DE4115664A1 DE 4115664 A1 DE4115664 A1 DE 4115664A1 DE 19914115664 DE19914115664 DE 19914115664 DE 4115664 A DE4115664 A DE 4115664A DE 4115664 A1 DE4115664 A1 DE 4115664A1
Authority
DE
Germany
Prior art keywords
oil
drain plug
place
housing
refrigerating 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.)
Withdrawn
Application number
DE19914115664
Other languages
German (de)
Inventor
Werner Maier
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19914115664 priority Critical patent/DE4115664A1/en
Publication of DE4115664A1 publication Critical patent/DE4115664A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/26—Oils; Viscous liquids; Paints; Inks
    • G01N33/28—Oils, i.e. hydrocarbon liquids
    • G01N33/2835—Specific substances contained in the oils or fuels
    • G01N33/2876—Total acid number

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Biochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Compressor (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

Acid is detected in the oil of a semi-hermetic refrigerating compressor using a pair of electrodes immersed in the oil bath. These are fixed in the housing via a pressure-resistant screwed joint, inserted in place of the oil drain plug. ADVANTAGE - Permanent monitoring of acid level and immediate warning of excessive amount.

Description

Um den Säuregehalt im Kälteöl festzustellen, wird bisher eine Ölprobe dem Verdichter entnommen und extern durch Säuretester auf chemischer Basis analysiert.To determine the acidity in the refrigerating oil, one has so far been used Oil sample taken from the compressor and externally by acid tester analyzed on a chemical basis.

Dadurch ergibt sich eine unstetige Säurewerterfassung. Das hat zur Folge, daß bei nicht rechtzeitigem Erkennen eine Reaktion der Säure gegenüber Metallen und der Wicklung (Klarlack) des E-Motors auftritt. Dies führt zu einer erheblich kürzeren Lebensdauer des Verdichters.This results in an inconsistent acid value recording. That has the result is that if the detection is not made in time, a reaction the acid versus metals and the winding (clear coat) of the E-motor occurs. This leads to a considerably shorter one Life of the compressor.

Durch den Kälteölsensor wird dem Betreiber frühzeitig die Bildung eines kritischen Säuregehalts gemeldet. Dies kann mittels einer Auswerteelektronik akustisch oder optisch gemeldet werden, um rechtzeitig eine Wartung bzw. einen Ölwechsel zu veranlassen, damit Folgeschäden vermieden werden.The operator is prompted by the cooling oil sensor Critical acidity reported. This can by means of evaluation electronics acoustically or optically be reported in time for a maintenance or a Have the oil changed so that consequential damage is avoided.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.An embodiment of the invention is in the drawing shown and is described in more detail below.

Bauteile laut FunktionszeichnungComponents according to the functional drawing

1 Halbhermetischer Kältemittelverdichter
2 Ölsensor (Elektrodenpaar)
3 Auswerteelektronik
4 Warnsummer
5 Warnleuchte 1 semi-hermetic refrigerant compressor
2 oil sensor (pair of electrodes)
3 evaluation electronics
4 warning buzzers
5 warning light

Funktionfunction

Mit steigendem Säuregehalt erhöht sich die elektrische Leitfähigkeit im Ölbad. Der daraus resultierende Spannungsfall am Ölsensor wird in der Auswerteelektronik weiterverarbeitet. Diese löst bei einem einstellbaren Grenzwert einen Alarm aus.With increasing acidity, the electrical increases Conductivity in an oil bath. The resulting one Voltage drop at the oil sensor is in the evaluation electronics processed further. This solves with an adjustable Limit an alarm.

Claims (1)

Säurefühler für halbhermetische Kälteverdichter,
bestehend aus einem Elektrodenpaar, daß sich im Ölbad eines Kältemittelverdichters befindet, dadurch gekennzeichnet, daß anstatt der Ölablaßschraube in Form einer druckfesten Verschraubung in das Verdichtergehäuse montiert wird.Acid sensor for semi-hermetic refrigeration compressors,
consisting of a pair of electrodes that is in the oil bath of a refrigerant compressor, characterized in that instead of the oil drain plug is mounted in the form of a pressure-resistant screw connection in the compressor housing.
DE19914115664 1991-05-14 1991-05-14 Acid detector in refrigerating compressor oil - comprises electrodes fixed in housing in place of oil drain plug Withdrawn DE4115664A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19914115664 DE4115664A1 (en) 1991-05-14 1991-05-14 Acid detector in refrigerating compressor oil - comprises electrodes fixed in housing in place of oil drain plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19914115664 DE4115664A1 (en) 1991-05-14 1991-05-14 Acid detector in refrigerating compressor oil - comprises electrodes fixed in housing in place of oil drain plug

Publications (1)

Publication Number Publication Date
DE4115664A1 true DE4115664A1 (en) 1992-11-19

Family

ID=6431612

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19914115664 Withdrawn DE4115664A1 (en) 1991-05-14 1991-05-14 Acid detector in refrigerating compressor oil - comprises electrodes fixed in housing in place of oil drain plug

Country Status (1)

Country Link
DE (1) DE4115664A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1256768A1 (en) * 2000-02-14 2002-11-13 Daikin Industries, Ltd. Refrigerator, abrasive powder judging device, and refrigerant oxidation judging device
WO2018043430A1 (en) * 2016-08-29 2018-03-08 旭硝子株式会社 Heat cycle system

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1144385B (en) * 1960-12-16 1963-02-28 Asea Ab Method for displaying salt water residues in cooling systems of electrical machines, such as turbo generators, electrical marine engines, etc., and arrangement for displaying such residues
DE2323491B2 (en) * 1973-05-10 1975-09-11 John D. St. Paul Minn. Skildum (V.St.A.) Measuring device for determining the degree of oxidation of an oil
GB2042737A (en) * 1979-02-16 1980-09-24 Alco Standard Corp Detecting the presence of water in oil
DE3006696A1 (en) * 1979-02-21 1980-10-09 Northern Instruments Corp Material dielectric constant measuring device - has electrode placed in material with HF excitation used to determine change in capacitance of electrode
DE3241078A1 (en) * 1982-11-06 1984-05-10 Battelle-Institut E.V., 6000 Frankfurt METHOD AND ARRANGEMENT FOR MONITORING BRAKE FLUIDS IN RESPECT OF THEIR BOILING LOW POINT
DE3413135A1 (en) * 1984-04-06 1985-10-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München MEASURING PROBE FOR DETECTING QUALITATIVE CHANGES OF LIQUIDS
DE3430661A1 (en) * 1984-08-21 1986-03-06 Robert Bosch Gmbh, 7000 Stuttgart Display device for the oil replacement intervals in internal-combustion engines
DE3701348A1 (en) * 1987-01-19 1988-07-28 Bayerische Motoren Werke Ag Method of testing the quality of a working fluid of motor vehicles
US4872316A (en) * 1988-02-01 1989-10-10 The Charles Stark Draper Laboratory, Inc. System for monitoring a liquid entrained in a fluid
DE3810534C2 (en) * 1987-03-27 1989-11-09 Carrier Corp., Syracuse, N.Y., Us

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1144385B (en) * 1960-12-16 1963-02-28 Asea Ab Method for displaying salt water residues in cooling systems of electrical machines, such as turbo generators, electrical marine engines, etc., and arrangement for displaying such residues
DE2323491B2 (en) * 1973-05-10 1975-09-11 John D. St. Paul Minn. Skildum (V.St.A.) Measuring device for determining the degree of oxidation of an oil
GB2042737A (en) * 1979-02-16 1980-09-24 Alco Standard Corp Detecting the presence of water in oil
DE3006696A1 (en) * 1979-02-21 1980-10-09 Northern Instruments Corp Material dielectric constant measuring device - has electrode placed in material with HF excitation used to determine change in capacitance of electrode
DE3241078A1 (en) * 1982-11-06 1984-05-10 Battelle-Institut E.V., 6000 Frankfurt METHOD AND ARRANGEMENT FOR MONITORING BRAKE FLUIDS IN RESPECT OF THEIR BOILING LOW POINT
DE3413135A1 (en) * 1984-04-06 1985-10-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München MEASURING PROBE FOR DETECTING QUALITATIVE CHANGES OF LIQUIDS
DE3430661A1 (en) * 1984-08-21 1986-03-06 Robert Bosch Gmbh, 7000 Stuttgart Display device for the oil replacement intervals in internal-combustion engines
DE3701348A1 (en) * 1987-01-19 1988-07-28 Bayerische Motoren Werke Ag Method of testing the quality of a working fluid of motor vehicles
DE3810534C2 (en) * 1987-03-27 1989-11-09 Carrier Corp., Syracuse, N.Y., Us
US4872316A (en) * 1988-02-01 1989-10-10 The Charles Stark Draper Laboratory, Inc. System for monitoring a liquid entrained in a fluid

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1256768A1 (en) * 2000-02-14 2002-11-13 Daikin Industries, Ltd. Refrigerator, abrasive powder judging device, and refrigerant oxidation judging device
EP1256768A4 (en) * 2000-02-14 2009-03-18 Daikin Ind Ltd Refrigerator, abrasive powder judging device, and refrigerant oxidation judging device
WO2018043430A1 (en) * 2016-08-29 2018-03-08 旭硝子株式会社 Heat cycle system
JPWO2018043430A1 (en) * 2016-08-29 2019-06-27 Ａｇｃ株式会社 Thermal cycle system
US11548267B2 (en) 2016-08-29 2023-01-10 AGC Inc. Heat cycle system

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Legal Events

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8139 Disposal/non-payment of the annual fee