EP3269460A1 - Dispositif de nettoyage de bouteilles et procédé pour un circuit d'eau de processus utilisé par le dispositif de nettoyage de bouteilles - Google Patents

Dispositif de nettoyage de bouteilles et procédé pour un circuit d'eau de processus utilisé par le dispositif de nettoyage de bouteilles Download PDF

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Publication number
EP3269460A1
EP3269460A1 EP17162514.8A EP17162514A EP3269460A1 EP 3269460 A1 EP3269460 A1 EP 3269460A1 EP 17162514 A EP17162514 A EP 17162514A EP 3269460 A1 EP3269460 A1 EP 3269460A1
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EP
European Patent Office
Prior art keywords
heat exchanger
medium
water
reservoir
water reservoir
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
EP17162514.8A
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German (de)
English (en)
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EP3269460B1 (fr
Inventor
Lucas Adamski
Anna Zweigardt
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.)
Krones AG
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Krones AG
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Application filed by Krones AG filed Critical Krones AG
Publication of EP3269460A1 publication Critical patent/EP3269460A1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/20—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/20—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought
    • B08B9/28—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought the apparatus cleaning by splash, spray, or jet application, with or without soaking
    • B08B9/30—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought the apparatus cleaning by splash, spray, or jet application, with or without soaking and having conveyors

Definitions

  • the invention relates to a bottle cleaning device according to claim 1 and a method for a process water circuit using the bottle cleaning device according to claim 7.
  • DE 32 05 956 A1 discloses a device for bottle cleaning, in which the effluent from the first preheater water is cooled in a recooling means by means of a heat exchanger and fed to the wastewater and in which the hereby heated water of the recooling device is cooled by a heat pump and the recooling device is guided.
  • the heat pump By means of the heat pump, the liquor of the second preheater is heated.
  • the heat and fresh water consumption of this device is thus low. This is due to the fact that the power circuit for heating and cooling is closed and only the heat loss must be replaced by energy supply.
  • the object of the invention is to optimize a bottle cleaning device with regard to their fresh water consumption.
  • a bottle cleaning device comprises a fresh water reservoir comprising a recycle water reservoir connected to a cold water reservoir, a second hot water reservoir connected to a first hot water reservoir, and to a leach reservoir connected to a lye bath or to a pre-treatment zone the fresh water reservoir into the recycle water reservoir, from the recycle water reservoir into the cold water reservoir, from the cold water reservoir into the second hot water reservoir, from the second hot water reservoir into the first hot water reservoir, from the first hot water reservoir to replenish or dilute into the leach reservoir, and from the leach reservoir to refill into the Lye bath or in the pretreatment zone can pass.
  • the recycle water reservoir, the cold water reservoir, the second hot water reservoir, the first hot water reservoir, the leach reservoir and the lye bath are also included in the bottle washer.
  • the bottle cleaning apparatus comprises a mixing valve which is connected via supply lines to the first hot water reservoir and the cold water reservoir, and which is adapted to mix supplied water from the first hot water reservoir and the cold water reservoir to mixed water.
  • the bottle washing apparatus further comprises a first heat exchanger adapted to cool the mixed water and at the same time to heat a first medium, a second heat exchanger adapted to cool the first medium and at the same time to heat a second medium, a third heat exchanger therefor is designed to cool the second medium and at the same time heat a third medium and a fourth heat exchanger, which is adapted to cool the third medium and at the same time to heat liquor from the lye bath.
  • the bottle cleaning device comprises a return line which is designed to supply the mixed water cooled in the first heat exchanger to the recycle water reservoir.
  • the first and second heat exchangers may be considered as an intermediate circuit in which the first medium circulates and which is required for the two-stage high temperature heat pump.
  • the two-stage high-temperature heat pump comprises the second and the third heat exchanger in the first stage and the third and the fourth heat exchanger in the second stage.
  • the second heat exchanger of the first stage serves as an evaporator for the second medium and the third heat exchanger as a condenser for the second medium.
  • the third heat exchanger serves as an evaporator for the third medium and the fourth heat exchanger as a condenser for the third medium.
  • the refrigerant R134a can be used, since no high-temperature capability is required here.
  • the refrigerant ⁇ KO 1 can be used.
  • This bottle cleaning machine allows a saving of fresh water consumption of up to 30%, as it allows the cleaning process to withdraw water, prepare it, to cool and to supply the cleaning process as fresh water replacement again.
  • the extracted water from the cold water reservoir and the first hot water reservoir has a temperature of about 50 ° C after mixing. In order to use this mixed water as a fresh water substitute, it must be cooled to about 15 ° C so that its temperature is approximately equal to that of the fresh water. The heat content of the branched water is high, and thus a large cooling capacity is applied.
  • the described two-stage high-temperature heat pump has proven to be the most suitable cooling.
  • the bottle cleaning apparatus may further comprise a first compressor, in a first flow direction of the second medium, after the second heat exchanger, and a first expansion throttle, in the first flow direction of the second medium, after the third heat exchanger, and also a second compressor, in a second flow direction of the third Medium, after the third heat exchanger and a second expansion throttle, in the second flow direction of the third medium, after the fourth heat exchanger include.
  • the designations "first" and "second" flow direction are used in order to be able to unambiguously assign the respective flow direction to the respective (second or third) medium.
  • the first and the second compressor as well as the first and the second expansion throttle are also part of the two-stage high-temperature heat pump.
  • the medium generally a refrigerant, which has been transferred in an evaporator from the liquid to the gaseous state, sucked and compressed in the compressor to the pressure which is necessary for the liquefaction of the medium.
  • the compressor compresses the vapor medium from a low initial pressure to a high final pressure, the temperature of the medium increases, so that this medium can be reused to heat another medium.
  • the mixing valve may include a temperature controlled servomotor.
  • a temperature sensor at the outlet of the mixing valve can give a signal to a controller that controls the actuator, so that the volume flow of water from the cold water reservoir and the Volumetric flow of water from the first hot water reservoir can be controlled and thereby a desired mixing temperature can be achieved by regulating the mixing ratio.
  • the first compressor and / or the second compressor may each comprise a screw compressor.
  • a screw compressor can operate at very high pressures.
  • two spiral rotors rotate in opposite directions of rotation.
  • One rotor may have four convex shaped teeth and the other rotor may comprise six concave shaped teeth. If the rotors rotate against each other, small chambers are created which convey the gas in the screw compressor in one direction. There is a suction at the suction side, which sucks the gaseous medium, and an ejection at the discharge side.
  • the first heat exchanger may comprise a plate heat exchanger.
  • a plate heat exchanger achieves a very compact design by the construction of several corrugated plates, which are alternately rotated rotated by 180 °. This creates flow gaps through which alternately the warm, to be cooled medium and the medium to be heated are passed through. There is a large heat transfer area.
  • the medium runs on the primary side opposite to that on the secondary side.
  • the temperature difference between incoming and outgoing medium at an evaporator of the heat exchanger should only be between 5 and 7 K difference, otherwise at a too large temperature difference between incoming and outgoing medium of the heat transfer coefficient is smaller.
  • the second heat exchanger and / or the third heat exchanger and / or the fourth heat exchanger may each comprise a tube bundle heat exchanger.
  • a tube bundle heat exchanger consists of a jacket and a tube bundle. One medium flows on the primary side through the tube bundles of U-tubes and another medium flows through the secondary side in the jacket.
  • a method for a process water cycle using a bottle washer as described above or below comprises the steps of: diverting water from the cold reservoir and water from the first hot water reservoir and supplying this water to the mixing valve, mixing this water with the temperature controlled valve A servomotor, supplying the mixed water via the first filter to the first heat exchanger and cooling the mixed water in the first heat exchanger and simultaneously heating a counterflow first medium in the first heat exchanger and supplying the cooled mixed water via a second filter to the Recyclewasserreservoir.
  • the first and the second medium can each circulate in a line system in the intermediate circuit or in the first stage of the two-stage high-temperature heat pump.
  • the heated third medium may be supplied through the second compressor to the fourth heat exchanger and the third medium may be cooled in the fourth heat exchanger.
  • countercurrent liquor can be heated from the lye bath in the fourth heat exchanger, followed by feeding the heated liquor to the liquor bath and feeding the cooled third medium via the second flashback to the third heat exchanger.
  • the third medium may circulate in a conduit system in the second stage of the two-stage high temperature heat pump.
  • the liquor can be conducted by means of another conduit system from the liquor bath to the fourth heat exchanger and back to the liquor bath.
  • fresh water may be initially introduced into the bottle washer to fill the cascade of successive water reservoirs. After filling with water and when the various water reservoirs have reached the required water temperatures, water can be diverted from the cold reservoir and water from the first hot water reservoir and then fed to the mixing valve.
  • FIG. 1 1 shows a block diagram of a process water circuit 1 of a bottle washing machine comprising a fresh water reservoir 2, a recycle water reservoir 3, a cold water reservoir 4, a second hot water reservoir 5, a first hot water reservoir 6, a leach reservoir 7 and a liquor bath 8. From the first hot water reservoir 6, water is supplied to a pretreatment zone 9, which comprises a pre-soak bath and discharge devices.
  • the bottle cleaning machine can be supplied to bottles to be cleaned by means of a conveyor belt. After these bottles have been introduced into bottle cells of a bottle carrier, they are fed headfirst to a pretreatment zone 9, in which first a residual emptying and then a pre-cleaning and the heating of the bottles take place.
  • the lye bath 8 is provided at about 78-80 ° C, in which the bottles are introduced. It can also be provided several Laugenbäder. In the alkaline bath, the labels come off the bottles without dissolving. The detached labels are regularly removed from the liquor bath 8 to keep its contamination small.
  • the bottles are first filled with a lye from the lye reservoir 7 at about 60 ° C., then with water from the first hot water reservoir 6 at about 50 ° C., then with water from the second warm water reservoir 5 at about 40 ° C. , then treated with cold water from the cold reservoir 4 at about 30 ° C and finally with fresh water from the fresh water reservoir 2 at about 15 ° C.
  • the successive cooling minimizes stresses in the material of the bottles and thus the bottles are also prepared for subsequent cold filling.
  • the cleaned bottles are removed from the bottle cells of the bottle carrier and can be removed with a delivery tape, for example, to a filling device.
  • the flow direction of the water in the bottle washing machine runs counter to the transport direction of the bottles, i. from the aftertreatment zone to the main treatment zone and then to the pre-treatment zone 9.
  • the bottles in the pre-treatment zone 9 are still comparatively heavily polluted and therefore do not need to be unnecessarily sprayed with fresh water, but can be sprayed with water already used for other process steps and by means of a or several filters.
  • In the caustic baths also regularly carried a discharge of detached labels. The last injection of the bottles before they leave the bottle washer must be done with fresh water, and therefore the bottle washer is filled with fresh water there.
  • the bottle washing machine is constructed according to a cascade, so that the water fed from the treatment zone to the treatment zone overflow and thus can be used there. At the beginning of the cascade fresh water is preferably fed.
  • a drain for a crate washer can be provided so that the crates do not need to be rinsed with fresh water.
  • the container sprinkler can also be supplied with water from the bottle washer; For example, the water may be used from a high-pressure pre-treatment of the pre-treatment zone 9.
  • the lye in the lye reservoir 7 becomes too alkaline, it can be diluted with water from the first hot water reservoir 6. If the fill level in the alkaline bath 8 is too low, refilling by means of lye from the after-liquor reservoir 7 can take place. If the lye 8 is too diluted, lye is replenished by a Dosagestation.
  • the extracted water must be cooled from 50 ° C down to 15 ° C, so that its temperature corresponds approximately to the temperature of the fresh water used.
  • the amount of heat generated during cooling can be used to heat the hot liquor baths.
  • the complete volume flow of fresh water should not be replaced by recycled water; for the present invention it has been found that about 30% of the original Fresh water consumption of the bottle washer can be recycled and fed to the cleaning process, without causing any adverse effects.
  • the volume flow of the flowing first medium is to be considered.
  • the volume flow can be in a range of 140 m 3 per hour
  • the volume flow can be in a range of 25 m 3 per hour.
  • the cooled in the first heat exchanger 12 mixed water leaves the first heat exchanger 12 via a first output 14 with a temperature of T 2 gem.
  • Water 15 ° C.
  • This cooled mixed water is passed through a second filter 17 and supplied to the Recyclewasserreservoir 3, so that this recycled water can be returned to the cascade of the bottle washing machine, whereby the otherwise required amount of fresh water can be reduced accordingly.
  • the first heat exchanger 12 is part of an intermediate circuit, which is required for the two-stage high-temperature heat pump 38.
  • the intermediate circuit comprises the first heat exchanger 12, a second heat exchanger 18 and a pump 19, which is provided for the transport of the first medium in the intermediate circuit and which is adjustable by a control valve and a manometer.
  • a second medium flows at a temperature T 1 M2 from a second input 22 in opposite directions to the first medium.
  • the second medium leaves the second heat exchanger 18 after heating via a second output 23 with a temperature of T 2 M2 .
  • the second medium is passed through a first compressor 24 to increase its pressure and temperature to T 3 M2 .
  • the second medium enters the third heat exchanger 25 via a first input 26 and leaves it again via a first output 27 at a temperature of T 4 M2 .
  • This third heat exchanger 25 serves as an evaporator for the second medium, and from there passes the condensed second medium with the temperature T 4 M2 .
  • the second medium with the temperature T 1 M2 is again supplied to the second heat exchanger 18 via the second input 22.
  • the third heat exchanger 25 serves as a condenser for the second medium.
  • the refrigerant R134a can be used as a second medium.
  • a third medium flows in opposite directions to the second medium.
  • the third medium passes via a second input 29 with a temperature T 1 M3 in the third heat exchanger 25 and leaves it again via a second output 30 with a temperature T 2 M3 .
  • the third medium passes to a second compressor 31.
  • T 3 M3 85 ° C to a fourth heat exchanger 32.
  • the compressed third medium is via a first input 33 in the fourth heat exchanger 32 introduced, is liquefied in the fourth heat exchanger 32 and leaves it via a first output 34 with a temperature T 4 M3 .
  • the third medium passes to a second expansion throttle 35 and from there with the temperature T 1 M3 back to the third heat exchanger 25th
  • the liquor from the liquor reservoir 8 flows in opposite directions to the third medium.
  • the third heat exchanger 25 serves as an evaporator for the third medium and the fourth heat exchanger 32 as a condenser for the third medium.
  • the third medium the refrigerant ⁇ KO 1 can be used.
  • FIG. 2 shows a flowchart of a method for a process water cycle.
  • a first step 100 fresh water is first fed into the bottle washing machine in order to fill the cascade of successive water reservoirs. After filling with water and when the various water reservoirs have reached the required water temperatures, water is branched off from the cold reservoir 4 and the first hot water reservoir 7 and fed to a mixing valve 10 in a second step 101.
  • this water of different temperature is mixed by means of the mixing valve 10 with a temperature-controlled servomotor.
  • a fourth step 103 the mixed water is fed via a first filter 11 to a first heat exchanger 12 and cooled in the first heat exchanger 12. At the same time, a counterflowing first medium in the first heat exchanger 12 is heated.
  • a fifth step 104 the cooled mixed water is fed via a second filter 17 to a recycle water reservoir 2.
  • the cooled mixed water is thus again available to the cascade of the bottle washing machine.
  • a sixth step 105 the heated first medium is fed to a second heat exchanger 18, in which it is cooled. At the same time, a countercurrent second medium in the second heat exchanger 18 is heated. The cooled first medium is then returned to the first heat exchanger 12.
  • a seventh step 106 the heated second medium is supplied through a first compressor 24 to a third heat exchanger 25, in which the second medium is cooled. At the same time, a countercurrent third medium in the third heat exchanger 25 is heated. The cooled second medium is fed back to the second heat exchanger 18 via a first expansion throttle 28.
  • the heated third medium is fed through a second compressor 31 to a fourth heat exchanger 32 and cooled there.
  • countercurrent liquor from the liquor bath 8 is heated in the fourth heat exchanger and then fed back to the alkaline bath 8.
  • the cooled third medium is fed back to the third heat exchanger 25 via a second expansion throttle 35.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP17162514.8A 2016-04-13 2017-03-23 Dispositif de nettoyage de bouteilles et procédé pour un circuit d'eau de processus utilisé par le dispositif de nettoyage de bouteilles Active EP3269460B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016206185.2A DE102016206185A1 (de) 2016-04-13 2016-04-13 Flaschenreinigungsvorrichtung und Verfahren für einen Prozesswasserkreislauf unter Verwendung der Flaschenreinigungsvorrichtung

Publications (2)

Publication Number Publication Date
EP3269460A1 true EP3269460A1 (fr) 2018-01-17
EP3269460B1 EP3269460B1 (fr) 2020-03-18

Family

ID=58412920

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17162514.8A Active EP3269460B1 (fr) 2016-04-13 2017-03-23 Dispositif de nettoyage de bouteilles et procédé pour un circuit d'eau de processus utilisé par le dispositif de nettoyage de bouteilles

Country Status (3)

Country Link
EP (1) EP3269460B1 (fr)
CN (1) CN207254880U (fr)
DE (1) DE102016206185A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2454100A1 (de) * 1974-11-14 1976-05-20 Orthmann & Herbst Behaelterreinigungsmaschine
DE3205956A1 (de) 1982-02-19 1983-09-15 Robert 6141 Einhausen Becker Vorrichtung zur flaschenreinigung, bei der waerme zurueckgewonnen und frischwasser eingespart wird
DE102013000522A1 (de) * 2013-01-15 2014-07-17 Khs Gmbh Verfahren sowie Anlage zur Behandlung von KEGs

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7403678A (nl) 1974-03-19 1975-09-23 Milpro N V Werkwijze en inrichting voor het spoelen van voorwerpen.
DE3118647A1 (de) 1981-05-11 1982-11-25 Holstein Und Kappert Gmbh, 4600 Dortmund Vorrichtung zum reinigen von flaschen
DE3512463A1 (de) * 1985-04-04 1986-10-16 Holstein Und Kappert Gmbh, 4600 Dortmund Verfahren zur reduzierung des waermeverbrauchs an flaschenreinigungsmaschinen
DE20321071U1 (de) 2003-05-05 2005-11-10 Krones Ag Vorrichtung zum Behandeln von Gegenständen mit Flüssigkeit
JP4860670B2 (ja) 2008-07-18 2012-01-25 株式会社前川製作所 洗びん方法及び洗びん機
DE102009039326A1 (de) 2009-08-31 2011-03-10 Karsten Uitz Wärmepumpe
DE102013114607B4 (de) 2013-12-20 2021-08-19 Khs Gmbh Verfahren zum Reinigen von Behältern sowie Behälterreinigungsmaschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2454100A1 (de) * 1974-11-14 1976-05-20 Orthmann & Herbst Behaelterreinigungsmaschine
DE3205956A1 (de) 1982-02-19 1983-09-15 Robert 6141 Einhausen Becker Vorrichtung zur flaschenreinigung, bei der waerme zurueckgewonnen und frischwasser eingespart wird
DE102013000522A1 (de) * 2013-01-15 2014-07-17 Khs Gmbh Verfahren sowie Anlage zur Behandlung von KEGs

Also Published As

Publication number Publication date
DE102016206185A1 (de) 2017-10-19
CN207254880U (zh) 2018-04-20
EP3269460B1 (fr) 2020-03-18

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