EP2877806B1 - Procédé et dispositif destinés à nettoyer des surfaces d'un échangeur de chaleur à ailettes - Google Patents

Procédé et dispositif destinés à nettoyer des surfaces d'un échangeur de chaleur à ailettes Download PDF

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Publication number
EP2877806B1
EP2877806B1 EP13759427.1A EP13759427A EP2877806B1 EP 2877806 B1 EP2877806 B1 EP 2877806B1 EP 13759427 A EP13759427 A EP 13759427A EP 2877806 B1 EP2877806 B1 EP 2877806B1
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EP
European Patent Office
Prior art keywords
water
compressed air
pressure
jet nozzle
jet
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Application number
EP13759427.1A
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German (de)
English (en)
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EP2877806A1 (fr
EP2877806B2 (fr
Inventor
Jens-Werner Kipp
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Individual
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Priority to PL13759427T priority Critical patent/PL2877806T3/pl
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/0075—Nozzle arrangements in gas streams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0483—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with gas and liquid jets intersecting in the mixing chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G1/00—Non-rotary, e.g. reciprocated, appliances
    • F28G1/16—Non-rotary, e.g. reciprocated, appliances using jets of fluid for removing debris
    • F28G1/166—Non-rotary, e.g. reciprocated, appliances using jets of fluid for removing debris from external surfaces of heat exchange conduits

Definitions

  • a cleaning system for finned heat exchanger is for example from the WO 2010/133932 A1 known.
  • the aim and purpose of the invention is to provide a method for cleaning fin heat exchangers, which has a gentle but effective cleaning effect with a low use of water and the avoidance of chemicals.
  • a cleaning process is provided by means of a low-pressure cleaning method using compressed air and small amounts of water as blasting agent, which is particularly suitable for the purification of fin heat exchangers. Since compressed air with a low water content has a much lower density than a water jet and can be brought by a corresponding nozzle to a very high speed, a complete penetration of the heat exchanger is achieved even at low pressure of the carrier gas.
  • the use of a low jet pressure which is produced only by means of compressed air and a small amount of pure water without additives, allows a gentle but effective cleaning of the slats in the overall depth of the exchanger.
  • the lamellar surfaces to be cleaned are aligned parallel to the jet. Since, in contrast to the use of the method for other surfaces, such. As graphite or foils, the beam angle is on the surfaces to be cleaned near 0 °, the pressure exerted on the surfaces jet pressure is very low here.
  • the surprising cleaning effect can not arise here from the impact of the nozzle jet on the surface, but surprisingly results from the friction effect of the nozzle jet on the surfaces of the lamellae. The cleaning effect contributes to the fact that the jet is designed pulsating.
  • the problem is solved according to the invention in that compressed air is supplied to a jet nozzle which has a section converging to a constriction and an adjoining divergent section, and the water preferably in front of the constriction, optionally in or downstream of the constriction of the jet nozzle, into the carrier gas flow fed to high speed, at least approximately the speed of sound or supersonic speed is brought.
  • compressed air is supplied to a jet nozzle which has a section converging to a constriction and an adjoining divergent section, and the water preferably in front of the constriction, optionally in or downstream of the constriction of the jet nozzle, into the carrier gas flow fed to high speed, at least approximately the speed of sound or supersonic speed is brought.
  • the jet pressure can be increased as far as the strength of the fins permits.
  • a flat nozzle is preferably used. Although the flat nozzle often has a lower cleaning effect when used for cleaning "normal" surfaces compared with a round die, in the cleaning of fin heat exchangers the jet passes more effectively into the narrow channels of the fin heat exchangers since the rebound effects on the front side of the heat exchanger are strong are reduced. This leads to an improved and uniform cleaning effect.
  • the throughput of the carrier gas is 4000 liters per minute, preferably 6000 liters per minute.
  • the amount of water in liters should be in proportion to the Compressed air preferably be less than 1: 1000.
  • the pressure of the supplied water should at a metering at a distance of min. 30 mm in front of the throat of the jet nozzle amount to at least 50% of the pressure of the compressed air, but preferably be similar to or higher than the pressure of the compressed air.
  • the water pressure can be reduced depending on the increasing pressure by increasing the pressure of the compressed air or added without pressure. The water is then sucked in by the high flow rate of the water.
  • the jet can be brought by the design of the water pump and / or by corresponding valves in the water and / or compressed air supply to the pulsation, which leads to an increase in the cleaning effect.
  • an existing sufficient pre-pressure of the water can also be dispensed with an additional pump to increase the pressure of the water.
  • An improvement of the cleaning effect can also be achieved by heating the compressed air z. B. caused by heat exchangers to z.
  • the required water preferably has drinking water quality but also properties close to drinking water quality. However, there is also the possibility of improving the effect by changing the pH value of the water for special requirements.
  • a device for carrying out the cleaning of fins of a fin heat exchanger is provided.
  • the device in this case comprises a jet nozzle with a feed for the compressed air, wherein the jet nozzle has a converging to a constriction portion and an adjoining diverging section.
  • a supply line for the water is provided for the addition of the water before, in or after the Blasting nozzle is formed.
  • the volume of water to the volume of compressed air in the ratio of less than 1: 1000, preferably less than 1: 2000.
  • the jet nozzle is advantageously designed convergent-divergent, preferably as a Laval nozzle.
  • a suitable throttle valve for regulating the amount of water is attached in the liquid supply upstream of the jet device.
  • the water / liquid is supplied to the carrier gas directly or via a distributor chamber with at least one outlet opening.
  • a diaphragm pump or a piston pump is preferably provided.
  • the cubic capacity should be less than 1.00 liters.
  • a pressure booster can be arranged behind the diaphragm pump.
  • Interrupter valves for water and / or compressed air may be provided to produce a pulsating nozzle jet, additional alternating line diameters from the water inlet to the pump may also cause desired voltage changes of the water.
  • the promotion of the water can be made by any type of pump, preferably by a diaphragm pump or piston pump, which sucks the water, but can also accept from a water hose under pressure.
  • a diaphragm pump or piston pump which sucks the water, but can also accept from a water hose under pressure.
  • the pressure of the control air can be kept small, but the water pressure can be increased far above the control pressure.
  • the generation of a pulsating jet can be caused by the design of the pump as a diaphragm pump and / or by the use of breaker valves for water and / or compressed air.
  • the line from the water inlet to the pump can have different diameters.
  • demineralization of the water takes place before introduction into the device or into a device having the device (eg osmosis system or ion exchange system).
  • the use of a flat nozzle is particularly advantageous.
  • the use of a lance with adjustable beam angle is particularly advantageous.
  • a carrier gas other than air and another additive liquid other than water may be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning In General (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (7)

  1. Procédé de nettoyage de surfaces d'un échangeur de chaleur à ailettes, dans lequel on utilise, pour le nettoyage, de l'air comprimé et de l'air sans additifs, et l'air comprimé est acheminé jusqu'à une buse d'éjection (1) qui présente une partie convergente (7) vers un goulot (6) et une partie divergente (8) étant contiguë à celle-ci, et l'eau est dosée dans le flux d'air comprimé en amont, dans le goulot (6) de la buse d'éjection ou en aval de celui-ci, dans lequel la buse d'éjection (1), qui est de préférence configurée sous la forme d'une buse plate, est orientée sur la cavité d'un échangeur de chaleur à ailettes formée entre les ailettes, le jet de la buse traversant, en raison du nettoyage des surfaces des ailettes, la cavité existant entre des ailettes adjacentes.
  2. Procédé selon la revendication 1, caractérisé en ce que l'eau est acheminée à une pression qui, lors d'un dosage à une distance minimum de 80 mm en amont du goulot de la buse d'éjection (1), est de préférence égale ou supérieure à la pression de l'air comprimé, mais au moins à 80 % de la pression de l'air comprimé, dans lequel, lors d'un dosage à une distance inférieure à 80 mm en amont du goulot (6) de la buse d'éjection (1), respectivement dans le goulot (6) de la buse d'éjection (1) ou en aval de celui-ci, en fonction de l'augmentation de la vitesse allant de pair il est possible d'opérer avec une diminution de la pression avec une très faible pression du liquide ou même sans aucune pression par le biais de l'utilisation de l'effet d'aspiration.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la quantité d'eau/quantité de liquide acheminée est, par rapport à l'air comprimé en pourcentage volumique, inférieure à 1:1000, de préférence inférieure à 1:2000, et/ou en ce que la pression du gaz porteur est au moins de 1,5 bar.
  4. Procédé selon une des revendications précédentes 1 à 3, caractérisé en ce que le mélange d'air comprimé et d'eau dans la buse d'éjection (1) est accéléré selon une certaine vitesse, de préférence s'approchant de la vitesse du son ou de la vitesse supersonique.
  5. Procédé selon une des revendications précédentes 1 à 4, caractérisé en ce que la buse d'éjection (1) est une buse plate afin d'obtenir un nettoyage efficace, soigneux et homogène des ailettes sans détériorations.
  6. Procédé selon une des revendications précédentes 1 à 5, caractérisé en ce que la vitesse d'écoulement du mélange d'air comprimé et d'eau est variée par une soupape d'étranglement respectivement un réducteur de pression (10) dans l'acheminement de liquide (2) et/ou une soupape d'étranglement respectivement un réducteur de pression dans l'acheminement d'air comprimé (9).
  7. Procédé selon une ou plusieurs des revendications précédentes 1 à 6, caractérisé en ce que l'eau et/ou l'air comprimé est acheminé(e) à la buse d'éjection (1) de préférence de manière puisée, et/ou en ce que l'air comprimé est acheminé par réchauffement par exemple au moyen d'un échangeur de chaleur, et/ou en ce que l'eau est acheminée avec un pH augmenté.
EP13759427.1A 2009-02-16 2013-07-23 Procédé et dispositif destinés à nettoyer des surfaces d'un échangeur de chaleur à ailettes Active EP2877806B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13759427T PL2877806T3 (pl) 2009-02-16 2013-07-23 Metoda i urządzenie dla czyszczenia powierzchni płytkowego wymiennika ciepła

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202009018911.2U DE202009018911U1 (de) 2009-02-16 2009-02-16 Reinigungsvorrichtung für die Reinigung empfindlicher Oberflächen
DE102012014605.1A DE102012014605A1 (de) 2009-02-16 2012-07-24 Reinigungsvorrichtung für die Reinigung von Lamellenwärmetauschern
PCT/DE2013/100273 WO2014015860A1 (fr) 2009-02-16 2013-07-23 Procédé et dispositif destinés à nettoyer des surfaces d'un échangeur de chaleur à ailettes

Publications (3)

Publication Number Publication Date
EP2877806A1 EP2877806A1 (fr) 2015-06-03
EP2877806B1 true EP2877806B1 (fr) 2018-04-11
EP2877806B2 EP2877806B2 (fr) 2021-11-17

Family

ID=55411114

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13759427.1A Active EP2877806B2 (fr) 2009-02-16 2013-07-23 Procédé et dispositif destinés à nettoyer des surfaces d'un échangeur de chaleur à ailettes

Country Status (6)

Country Link
US (1) US20150129171A1 (fr)
EP (1) EP2877806B2 (fr)
JP (1) JP2015524546A (fr)
DE (2) DE202009018911U1 (fr)
PL (1) PL2877806T3 (fr)
WO (1) WO2014015860A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015106914A1 (de) 2014-11-18 2016-05-19 Jens-Werner Kipp Verfahren und Vorrichtung zur Reinigung von Rohren, Tanks und sonstigen Oberflächen von Teilen, mit Rückständen aus Fett, Oel und ähnlichen Stoffen
CN104588357A (zh) * 2014-12-31 2015-05-06 苏州原点工业设计有限公司 一种实验室雾滴吹洗装置
DE102015201945A1 (de) 2015-02-04 2016-08-04 Sivantos Pte. Ltd. Höreinrichtung zur binauralen Versorgung sowie Verfahren zum Betrieb
US11788807B2 (en) 2015-12-28 2023-10-17 Coil Flow Max, Inc. Apparatus and method for cleaning HVAC cooling coils
WO2017117255A1 (fr) 2015-12-28 2017-07-06 Thick Coil Clean, Inc. Appareil et procédé pour le nettoyage de serpentins de refroidissement de systèmes de cvc
RU170745U1 (ru) * 2016-06-10 2017-05-05 Акционерное Общество "Сибтехэнерго" Инженерная Фирма По Наладке, Совершенствованию Технологий И Эксплуатации Электро-Энергооборудования Предприятий И Систем Устройство для очистки поверхностей нагрева энерготехнологического оборудования
JP6558806B2 (ja) * 2016-06-27 2019-08-14 株式会社ダイフク 洗車機及び洗車方法
DE102017101850A1 (de) * 2016-10-31 2018-05-03 Mycon Gmbh Installationsanordnung und Verfahren zur automatisierten Reinigung von Lamellenwärmetauschern
DE102017119113A1 (de) * 2017-08-22 2019-02-28 Jens-Werner Kipp Fassadenreinigungsvorrichtung und Verfahren zur Reinigung einer Fassade
DE202018002678U1 (de) * 2018-01-24 2018-09-06 Karlsruher Institut für Technologie Zweistoffdüse
DE102019005166A1 (de) * 2019-07-25 2021-01-28 Mycon Gmbh Vorrichtung zur Reinigung von Lamellenwärmetauschern in Horizontal- oder Schrägstellung
WO2021023328A1 (fr) 2019-08-06 2021-02-11 Mycon Gmbh Dispositif de protection enroulable pour buses à jet pour nettoyer des surfaces dans le but de réduire le bruit du jet de buse
DE102020001000A1 (de) 2020-02-17 2021-08-19 Mycon Gmbh Verfahren zur Reinigung von Luft/Luft Wärmeübertragungsapparaten z.B. aus dem Luftfahrtbereich
CN112792050B (zh) * 2021-02-01 2022-04-29 江西中烟工业有限责任公司 一种烟草喂料机出料斗视窗的清洁装置及其清洁方法
DE202022103564U1 (de) 2021-07-09 2022-07-11 RIBO Reinigungs- und Gebäude-Service Gesellschaft mit beschränkter Haftung Reinigungsvorrichtung für Lamellenwärmetauscher
PL442523A1 (pl) * 2022-10-13 2024-04-15 3N Solutions Spółka Z Ograniczoną Odpowiedzialnością Lanca zestawu czyszczącego urządzeń energetycznych pozostających pod napięciem średnim

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Publication number Priority date Publication date Assignee Title
DE9110027U1 (fr) 1991-08-14 1991-09-26 Kipp, Angelika
DE10243693B3 (de) 2002-09-20 2004-04-01 Jens Werner Kipp Strahlverfahren und-vorrichtung
DE102004023246B3 (de) 2004-05-07 2005-10-27 Jens-Werner Kipp Strahlverfahren
EP1501655B1 (fr) 2002-09-20 2006-04-05 KIPP, Jens-Werner Procede et dispositif de nettoyage par projection
US20090101183A1 (en) 2007-10-22 2009-04-23 Sk Energy Co., Ltd. Apparatus for cleaning tube fins of air fan cooler for heat exchanger
DE102009009014A1 (de) 2009-02-16 2010-08-19 Jens Werner Kipp Reinigungsvorrichtung für die Reinigung empfindlicher Oberflächen
WO2010133932A1 (fr) 2009-05-18 2010-11-25 M.N.P. S.R.L. Système de nettoyage et d'hygiénisation d'un échangeur de chaleur à ailettes

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Publication number Priority date Publication date Assignee Title
DE9110027U1 (fr) 1991-08-14 1991-09-26 Kipp, Angelika
DE10243693B3 (de) 2002-09-20 2004-04-01 Jens Werner Kipp Strahlverfahren und-vorrichtung
EP1501655B1 (fr) 2002-09-20 2006-04-05 KIPP, Jens-Werner Procede et dispositif de nettoyage par projection
DE102004023246B3 (de) 2004-05-07 2005-10-27 Jens-Werner Kipp Strahlverfahren
US20090101183A1 (en) 2007-10-22 2009-04-23 Sk Energy Co., Ltd. Apparatus for cleaning tube fins of air fan cooler for heat exchanger
DE102009009014A1 (de) 2009-02-16 2010-08-19 Jens Werner Kipp Reinigungsvorrichtung für die Reinigung empfindlicher Oberflächen
WO2010133932A1 (fr) 2009-05-18 2010-11-25 M.N.P. S.R.L. Système de nettoyage et d'hygiénisation d'un échangeur de chaleur à ailettes

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ANONYMOUS: "Lavaldüse", WIKIPEDIA, 24 July 2018 (2018-07-24), pages 1 - 3, XP055548481, Retrieved from the Internet <URL:https://de.wikipedia.org/wiki/Lavald%C3%BCse>
ANONYMOUS: "Strahlpumpe", WIKIPEDIA, 7 March 2018 (2018-03-07), pages 1 - 4, XP055548482, Retrieved from the Internet <URL:https://de.wikipedia.org/wiki/Strahlpumpe>

Also Published As

Publication number Publication date
DE202009018911U1 (de) 2014-07-08
EP2877806A1 (fr) 2015-06-03
WO2014015860A1 (fr) 2014-01-30
JP2015524546A (ja) 2015-08-24
EP2877806B2 (fr) 2021-11-17
PL2877806T3 (pl) 2018-08-31
US20150129171A1 (en) 2015-05-14
DE102012014605A1 (de) 2014-03-06

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