WO1992002766A1 - Procede et appareil destines a surveiller et a reconditionner l'ecoulement d'un liquide dans des systemes de chauffage et de climatisation - Google Patents

Procede et appareil destines a surveiller et a reconditionner l'ecoulement d'un liquide dans des systemes de chauffage et de climatisation Download PDF

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Publication number
WO1992002766A1
WO1992002766A1 PCT/SE1991/000452 SE9100452W WO9202766A1 WO 1992002766 A1 WO1992002766 A1 WO 1992002766A1 SE 9100452 W SE9100452 W SE 9100452W WO 9202766 A1 WO9202766 A1 WO 9202766A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
flow
reconditioning
monitoring
viewing
Prior art date
Application number
PCT/SE1991/000452
Other languages
English (en)
Inventor
Joe Johannesson
Sven-Gunnar Svensson
Björn CARLSSON
Original Assignee
Global Energi Service Ab
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 Global Energi Service Ab filed Critical Global Energi Service Ab
Priority to DE69102282T priority Critical patent/DE69102282T2/de
Priority to EP91914174A priority patent/EP0541659B1/fr
Publication of WO1992002766A1 publication Critical patent/WO1992002766A1/fr
Priority to NO930259A priority patent/NO179188C/no
Priority to FI930309A priority patent/FI96988C/fi

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/0092—Devices for preventing or removing corrosion, slime or scale

Definitions

  • the present invention relates to a method and apparatus for monitoring and reconditioning system liquid, i.e. the flow of liquid in heating and cooling systems, the method being characterized by monitoring and recon ⁇ ditioning the system liquid continuously in a part flow removed from the system and returning said part flow to the system subsequent to reconditioning.
  • Radiators can be mentioned as an example of heating systems, while air-conditioning systems are examples of cooling sys ⁇ tems.
  • system liquid embraces, primarily, system water, which may possibly contain standard chemicals, such as glycol or alcohol.
  • reconditioning the system liquid of heating and cooling systems is meant here treating the liquid mec ⁇ hanically, chemically or physically-chemically in a manner to halt corrosion that is present in the system, to remove slime, precipitations and coatings from said system, and to prevent any future corrosion, slime formation and deposits from occurring.
  • the system is unable to manage peak loads.
  • the system exhibits circulation disturbances.
  • the liquid may, for instance, have an unsuitable pH-value, i.e. a pH-value which does not lie within the recom ⁇ mended range of 8.5-9.5 in the case of heating-system water, or may have a conductivity (salt content) which is too high and which does not lie beneath 200 ⁇ S/cm as recommended for heating-system water, or an excessively high oxygen content, i.e. an oxygen content which does not lie beneath the recommended value of 0.05 mg/1 at 95 * C.
  • an unsuitable pH-value i.e. a pH-value which does not lie within the recom ⁇ mended range of 8.5-9.5 in the case of heating-system water
  • a conductivity (salt content) which is too high and which does not lie beneath 200 ⁇ S/cm as recommended for heating-system water
  • an excessively high oxygen content i.e. an oxygen content which does not lie beneath the recommended value of 0.05 mg/1 at 95 * C.
  • Another problem is that the formation of slime in the liquid can result in operational disturbances, while deposits and coatings result in energy losses.
  • Patent NO 160546 teaches apparatus for venting or purging a closed liquid system in a manner as to remove small air bubbles or vapour bubbles, by causing the bubbles to agglomerate into larger bubbles of greater buoyancy, and thereafter removing the bub ⁇ bles from the system by means of said apparatus.
  • U.S. 4,413,675 describes a filter and a viewing glass incorporated in the cooling system and located in the direct total flow between a motor and a radiator.
  • a transparent conduit incorporating double, conical screens or filters are intended to prevent blockaging of the radiator, and the arrangement also enables the operation of the cooling-water pump and thermostat to be checked visually and indicates corrosive liquid and relative flow.
  • the arrangement is said to be suitable for installation in the cooling system of internal combustion engines. The total cooling-liquid flow passes through the arrangement before said flow is passed to the radiator. It is necessary to remove and clean the filters when the need arises, during which time the system is unavoidably out of operation.
  • U.S. 4,793,403 teaches a method of cleaning the cooling system of an internal combustion engine, wherein the whole of the cooling liquid is passed to a zone (a device) located externally of the cooling system, where the liquid is treated in a manner to remove particles of rust, deposits and slime.
  • This treatment requires the steps of filtering-off contaminants, adding chemi ⁇ cals, such as corrosion inhibitors, adding means for adjusting the pH and an anti-corrosion agent, returning the cooling liquid from the treatment zone to the engine cooling system, and filtering the returning cooling liquid.
  • broschyr ASEA-ATOM B R 75 describes the cleansing of turbine-condensation water by filtering the water prior to returning said water to the reactor, and also the cleansing of reactor water, by removing anionic and suspended impurities such as to impart a specified degree of purity to the water in the reactor vessel, by means of two parallel ion-exchange units consisting of radial-flow bed filters.
  • the present invention relates to a method and apparatus for continuously monitoring and improving the condition of system liquid, by removing a part flow of the system liquid, e.g. the system water of a heating or cooling system, and monitoring and subsequently con ⁇ ditioning the liquid in a given order of treatment steps within one and the same apparatus unit incor ⁇ porated in said system, said steps comprising:
  • the reconditioning system also includes alarm devices which function to produce an optical and/or electrical alarm signal in the event of an operational disturbance and/or when the system liquid is in poor condition, thus when, for instance, filtering-off particles, measuring the liquid flow, and when measuring pH, oxygen content and conductivity.
  • the inventive apparatus is installed for the purpose of alleviating maintenance and for preventing the need for maintenance and, as before mentioned, is operated without interrupting the normal operation for system liquid, since the necessary cleaning or exchange of, for instance, filters is effected in a branched part flow which, subsequent to reconditioning, is returned to the total supply system.
  • the aforesaid conditioning steps need not necessarily be carried out in the aforesaid order, and the steps may be mutually reversed when considered suitable.
  • the individual steps are carried out with the aid of known auxiliary devices, which do not form part of the inven ⁇ tion as such.
  • the essential feature of the present invention is that the different, individual condition ⁇ ing steps are carried out successively, without inter- rupting the function of the system as a whole.
  • inventive ap ⁇ paratus and inventive method are able to improve the condition of the water in a "physical-mechanical" manner to such an extent as to enable the earlier applied chemical treatment to be omitted, even in the case of systems in which the system water is very poor.
  • a flow meter with viewing glass (system liquid in poor condition). 2. Magnetic filtering.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Physical Water Treatments (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Details Of Measuring And Other Instruments (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Degasification And Air Bubble Elimination (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

Procédé destiné à surveiller et à reconditionner en continu l'écoulement d'un liquide dans des systèmes de chauffage et de climatisation, selon lequel le liquide du système, par exemple de l'eau, qui peut contenir des adjuvants types tels que l'alcool ou le glycol, est surveillé et reconditionné en plusieurs étapes réciproquement séquentielles à l'intérieur d'un appareil incorporé au système. Le procédé consiste à prélever, à partir de l'écoulement total ou principal de liquide, un écoulement partiel qui est restitué à l'écoulement principal après que le reconditionnement a eu lieu. Le procédé de reconditionnement comprend les étapes suivantes - subséquentes à l'observation du liquide au moyen d'un regard: la filtration magnétique pour enlever des particules de magnétite; l'enlèvement par filtration de particules solides (de particules fines); l'élimination de gaz corrosif; la désaération du système; la mesure de pH, de teneur en oxygène et de conductivité, au cours de laquelle un signal d'alarme optique et/ou électrique est émis en cas d'écarts par rapport à des valeurs de contrôle du liquide, réciproquement apparentées, introduites dans l'appareil, ou en cas de malfonctionnement de l'appareil. Un appareil servant à mettre en pratique ce procédé se compose d'une unité incorporée au système qui comprend des dispositifs auxiliaires pour effectuer successivement lesdites opérations partielles.
PCT/SE1991/000452 1990-07-27 1991-06-24 Procede et appareil destines a surveiller et a reconditionner l'ecoulement d'un liquide dans des systemes de chauffage et de climatisation WO1992002766A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE69102282T DE69102282T2 (de) 1990-07-27 1991-06-24 Verfahren und vorrichtung zur überwachung und erneuerung des flüssigkeitsflusses in wärme- und kühlsystemen.
EP91914174A EP0541659B1 (fr) 1990-07-27 1991-06-24 Procede et appareil destines a surveiller et a reconditionner l'ecoulement d'un liquide dans des systemes de chauffage et de climatisation
NO930259A NO179188C (no) 1990-07-27 1993-01-26 Fremgangsmåte og apparatur for overvåking og rekondisjonering av væskeströmmer i oppvarmings- og avkjölingssystemer
FI930309A FI96988C (fi) 1990-07-27 1993-01-26 Menetelmä ja laite nestevirtauksen valvomiseksi ja uusioimiseksi lämmitys- ja jäähdytysjärjestelmissä

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9002519-8 1990-07-27
SE9002519A SE467121B (sv) 1990-07-27 1990-07-27 Saett och anordning foer oevervakning och rekonditionering av vaetskefloedet i vaerme- och kylsystem

Publications (1)

Publication Number Publication Date
WO1992002766A1 true WO1992002766A1 (fr) 1992-02-20

Family

ID=20380056

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1991/000452 WO1992002766A1 (fr) 1990-07-27 1991-06-24 Procede et appareil destines a surveiller et a reconditionner l'ecoulement d'un liquide dans des systemes de chauffage et de climatisation

Country Status (9)

Country Link
EP (1) EP0541659B1 (fr)
AT (1) ATE106528T1 (fr)
CA (1) CA2088151A1 (fr)
DE (1) DE69102282T2 (fr)
DK (1) DK0541659T3 (fr)
FI (1) FI96988C (fr)
NO (1) NO179188C (fr)
SE (1) SE467121B (fr)
WO (1) WO1992002766A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995021356A1 (fr) * 1994-02-07 1995-08-10 Carlsson Bjoern Dispositif installe dans un systeme de chauffage ou de refrigeration a circulation continue de liquide dans un circuit ferme
WO1996016299A1 (fr) * 1994-11-17 1996-05-30 Carlsson Bjoern Procede et appareillage pour eviter l'accumulation de produits de corrosion dans une conduite destinee a une circulation permanente de liquide
FR2741446A1 (fr) * 1995-11-20 1997-05-23 Ifremer Installation automatique de surveillance de la qualite d'un milieu liquide, notamment aquatique
GB2442093A (en) * 2006-09-23 2008-03-26 Martin John Smith Indicator device
NL2020690B1 (en) * 2018-03-29 2019-10-07 Flamco Bv Removal device with flow control
RU2787854C2 (ru) * 2018-03-29 2023-01-13 Фламко Б.В. Устройство для удаления с управлением потоком

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010012271U1 (de) 2010-09-07 2010-11-11 Aew Wassertechnologie Gmbh Vorrichtung und System zum Konditionieren von Wasser für wasserführende Kreislaufsysteme
DE102010044567B4 (de) 2010-09-07 2021-04-15 Aew Wassertechnologie Gmbh Vorrichtung und System zum Konditionieren von Wasser für wasserführende Kreislaufsysteme

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4413675A (en) * 1981-08-10 1983-11-08 Gano Lloyd D Cooling system protective device
US4793403A (en) * 1987-08-20 1988-12-27 Wynn Oil Company Engine coolant flush-filtering, using external gas pressure
NO160546B (no) * 1986-03-10 1989-01-16 Bengt Arne Persson Anordning for ventilering av et lukket ledningssystem.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4413675A (en) * 1981-08-10 1983-11-08 Gano Lloyd D Cooling system protective device
NO160546B (no) * 1986-03-10 1989-01-16 Bengt Arne Persson Anordning for ventilering av et lukket ledningssystem.
US4793403A (en) * 1987-08-20 1988-12-27 Wynn Oil Company Engine coolant flush-filtering, using external gas pressure

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Asea-Atom BWR 75" 1984, Asea-Atom. *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995021356A1 (fr) * 1994-02-07 1995-08-10 Carlsson Bjoern Dispositif installe dans un systeme de chauffage ou de refrigeration a circulation continue de liquide dans un circuit ferme
WO1996016299A1 (fr) * 1994-11-17 1996-05-30 Carlsson Bjoern Procede et appareillage pour eviter l'accumulation de produits de corrosion dans une conduite destinee a une circulation permanente de liquide
FR2741446A1 (fr) * 1995-11-20 1997-05-23 Ifremer Installation automatique de surveillance de la qualite d'un milieu liquide, notamment aquatique
GB2442093A (en) * 2006-09-23 2008-03-26 Martin John Smith Indicator device
GB2442093B (en) * 2006-09-23 2011-11-16 Martin John Smith Indicator device
NL2020690B1 (en) * 2018-03-29 2019-10-07 Flamco Bv Removal device with flow control
WO2019190326A3 (fr) * 2018-03-29 2019-10-31 Flamco B.V. Dispositif de retrait avec régulation de l'écoulement
RU2787854C2 (ru) * 2018-03-29 2023-01-13 Фламко Б.В. Устройство для удаления с управлением потоком
US11951418B2 (en) 2018-03-29 2024-04-09 Flamco B.V. Removal device with flow control

Also Published As

Publication number Publication date
FI930309A0 (fi) 1993-01-26
NO930259D0 (no) 1993-01-26
CA2088151A1 (fr) 1992-01-27
FI930309A (fi) 1993-01-26
FI96988B (fi) 1996-06-14
NO930259L (no) 1993-02-23
DE69102282D1 (de) 1994-07-07
NO179188B (no) 1996-05-13
NO179188C (no) 1996-08-21
EP0541659A1 (fr) 1993-05-19
FI96988C (fi) 1996-09-25
SE9002519L (sv) 1992-01-28
DE69102282T2 (de) 1994-10-13
ATE106528T1 (de) 1994-06-15
SE467121B (sv) 1992-05-25
SE9002519D0 (sv) 1990-07-27
EP0541659B1 (fr) 1994-06-01
DK0541659T3 (da) 1994-09-26

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