WO2015192254A1 - Procédé et dispositif de nettoyage en place - Google Patents

Procédé et dispositif de nettoyage en place Download PDF

Info

Publication number
WO2015192254A1
WO2015192254A1 PCT/CH2014/000082 CH2014000082W WO2015192254A1 WO 2015192254 A1 WO2015192254 A1 WO 2015192254A1 CH 2014000082 W CH2014000082 W CH 2014000082W WO 2015192254 A1 WO2015192254 A1 WO 2015192254A1
Authority
WO
WIPO (PCT)
Prior art keywords
cleaning
pipe
outlet
inlet
service pipe
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.)
Ceased
Application number
PCT/CH2014/000082
Other languages
English (en)
Inventor
Thomas Eggler
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.)
Tetra Laval Holdings and Finance SA
Original Assignee
Tetra Laval Holdings and Finance SA
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 Tetra Laval Holdings and Finance SA filed Critical Tetra Laval Holdings and Finance SA
Priority to PCT/CH2014/000082 priority Critical patent/WO2015192254A1/fr
Priority to CN201480079343.XA priority patent/CN106413927A/zh
Priority to EP14738357.4A priority patent/EP3157690A1/fr
Publication of WO2015192254A1 publication Critical patent/WO2015192254A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • 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
    • 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
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • B08B9/0325—Control mechanisms therefor

Definitions

  • the invention relates to a method for clean- ing-in-place of a liquid food processing plant and a liquid food processing plant cleanable by said method.
  • CIP cleaning-in-place
  • CIP-block is an installation for providing different kind of cleaning fluids.
  • the CIP-block is connected to the processing plant via a plurality of pipes for each type of cleaning fluid.
  • a subset of these pipes is formed by inlet pipes which are connected to tanks of the pro ⁇ cessing plant used for storing and/or delivering a liquid food, e.g. a beverage.
  • the cleaning fluid is delivered into the tanks during a cleaning process.
  • a second subset is formed by outlet pipes which extract the cleaning fluid from the tank after the cleaning process and feed it back into the CIP-block.
  • Each inlet pipe is attributed to a certain outlet pipe, such that a certain cleaning fluid always flows through a particular inlet pipe and is always fed back into the CIP-block via a particular outlet pipe.
  • a certain cleaning fluid there is a predefined circuit consisting of the CIP-block, an inlet pipe, the storage tank to be cleaned and the attributed outlet pipe.
  • the liquid food processing plant comprises at least one storage tank for storing liquid food, at least a product inlet pipe for feeding the liquid food into the storage tank and at least a product outlet pipe for delivering the liquid food to a consumer from the storage tank. Furthermore, an inlet service pipe and an outlet service pipe are provided in the liquid food processing plant, which connect the storage tank with a cleaning-in-place installation adapted to deliver a plurality of cleaning fluids.
  • the method comprises the steps of : a) connecting the inlet service pipe to a plurality of outlet pipes of the cleaning-in-place installation and the outlet service pipe to a plurality of inlet pipes of the cleaning-in-place installation, and b) cleaning the inlet service pipe, the storage tank and the outlet service pipe by circulating at least one cleaning fluid from the cleaning-in-place installation through the inlet service pipe, the storage tank, the outlet service pipe and back into the cleaning- in-place installation.
  • a liquid food processing plant comprising at least one storage tank for storing liquid food, at least a product inlet pipe for feeding the liquid food into the storage tank and at least a product outlet pipe for delivering the liquid food to a consumer out of the storage tank, further comprising one inlet service pipe which is in fluid communication with the storage tank and with CIP outlet pipes of a cleaning-in-place installation adapted to deliver a plurality of cleaning fluids.
  • the liquid food processing plant is cleanable by the method according to the invention.
  • the liquid food processing plant is prefera ⁇ bly used as a beverage mixing plant or as a pasteurization plant.
  • the liquid food processing plant is manifested by the feature that one outlet service pipe is provided, which is in fluid communication with the storage tank and with the cleaning-in-place installation.
  • a bypass service pipe is provided in order to direct the at least one cleaning fluid to the consumer.
  • the inlet service pipe is connected to each CIP outlet pipe of the cleaning-in- place installation by means of a valve for each connection and the outlet service pipe is connected to CIP return pipes of the cleaning-in-place installation by means of a valve for each connection.
  • liquid food processing plant further comprises an inlet adapter mod ⁇ ule for connecting the inlet service pipe to the outlet pipes of the cleaning-in-place installation and/or an outlet adapter module for connecting the outlet service pipe to the CIP return pipes of the cleaning-in-place installation .
  • Fig. 1 shows a simplified schematic of a liquid food processing plant according to the prior art
  • Fig. 2 shows a simplified schematic of a liquid food processing plant with pipe cleaning according to the invention.
  • inlet and out ⁇ let in connection with a device are understood as refer ⁇ ring to the flow direction of a fluid with respect to that device; e.g. an inlet pipe of the device has a flow ⁇ ing direction into that device.
  • fluid is un ⁇ derstood to comprise liquid or gaseous materials.
  • Fig. 1 shows a simplified schematic of a liq ⁇ uid food processing plant 1, in the following called plant 1, according to the prior art with no pipe cleaning.
  • the plant 1 comprises a storage tank 4a connected on its inlet side with CIP outlet pipes 8a, 8b, 8c, 8d for cleaning the storage tank 4a.
  • Each CIP outlet pipe 8a-8d is connected to the storage tank 4a by means of a corresponding inlet service pipe 2a, 2b.
  • inlet service pipes 2a, 2b For reasons of clarity only two inlet service pipes 2a, 2b are shown here, but it is understood that all CIP outlet pipes 8a-8d are connected to the storage tank 4a via an attributed inlet service pipe.
  • product inlet pipes are not shown for clarity reasons.
  • the CIP outlet pipes 8a-8d comprise a C02-supply pipe 8a, a water supply pipe 8b, a cleaning fluid pipe 8c and a sterile air supply pipe 8d.
  • additional or alternative CIP outlet pipes carrying other fluid materials are conceiva ⁇ ble.
  • the storage tank 4a On its outlet side the storage tank 4a comprises an outlet service pipe 3a which connects the storage tank 4a to outlet return pipes, of which only the outlet return pipe 7 carrying cleaning fluid is shown here.
  • Double-seat valves 10 are commonly known by the skilled person and will not be described here.
  • the signs marked with 17 in the figures refer to a drain of the respective pipe.
  • the outlet service pipe 3a is furthermore al ⁇ so connected directly to the CIP outlet pipes via first bypass pipes 9a-9c.
  • the outlet service pipe 3a is connected to a consumer 4b on the inlet side of the latter, via a product outlet pipe 3b.
  • the consumer 4b may e.g. be a filler or other known devices or tanks used for further processing the liquid food delivered to them from the storage tank 4a.
  • the consumer 4b is connected on its outlet side to the CIP return pipes, here the CIP return pipe 7, via a consumer outlet service pipe 6b.
  • the latter is also connected directly to the CIP outlet pipes 8a-8d via second bypass pipes 5a, 5b. Again, only two second bypass pipes are shown for reasons of clarity.
  • the CIP outlet pipes are part of a cleaning-in-place installation (CIP, not shown) which provides cleaning fluids to the CIP outlet pipes.
  • the return pipe(s) 7 guides the flu ⁇ id (s) back into the cleaning-in-place installation, in the following called CIP.
  • CIP cleaning-in-place installation
  • cleaning fluid is supplied from the CIP via the cleaning fluid supply pipe 8c into the inlet service pipe 2a, further into the storage tank 4a, which is cleaned by the cleaning fluid, out of the storage tank 4a and into the return pipe 7 via the outlet service pipe 3a and an in ⁇ termediary pipe 6a.
  • the outlet service pipe 3a may also be used to transport a liquid food product into the consumer via the product outlet pipe 3b. This may also be the case for a plant la according to the invention and described below in connection with Fig. 2.
  • the product outlet pipe 3b may also be cleaned by supplying cleaning fluid through the first bypass pipe 9c. Prior to this step residual product located in the product outlet pipe 3b may be pushed back into the storage tank by pressing air or CO2 through the respective second bypass pipe (here pipe 5b as an exam ⁇ ple) . After cleaning the product outlet pipe 3b and the consumer 4b the cleaning fluid is returned to the CIP via the consumer outlet service pipe 6b and the return pipe 7.
  • the inlet service pipes 2a, 2b are only used relatively seldom, e.g. the inlet service pipe 2a is only used when cleaning fluid is transported therethrough and the inlet service pipe 2b only when sterile air has to be inserted into the storage tank 4a. Because of the resulting long idle time of the inlet service pipes 2a, 2b the pipes may be subject to an accumulation of contaminants. For example, residual water may still be present in such a pipe and remain there for a long period of time. When water is supplied through that pipe the next time, it mixes with the "old" water and inserted into the storage tank 4a. This is obviously unde- sired because the contaminants are flushed into the storage tank 4a.
  • each service inlet pipe 2a, 2b with an own recirculation (feedback) pipe circuit which is able to feed the respective fluid back into the CIP or any other source during the idle time of the respective pipe.
  • feedback recirculation
  • a modified plant la according to the invention is shown in Fig. 2. Elements of the modified plant la which are equivalent to elements of the plant 1 are denoted by the same reference numerals .
  • Fig. 2 shows a schematized CIP 12 connected to a single inlet service pipe 2 via CIP outlet pipes 8a- 8d.
  • the connection is, as mentioned, carried out by double-seat valves lOa-lOc, each of which can switch the contents of the respective CIP outlet pipe into the inlet service pipe 2 or into a bypass service pipe, of which only one pipe 13 is shown here for clarity reasons. Its purpose will be described later.
  • the inlet service pipe 2 is connected to the storage tank 4a which is connected to the return pipes 7a-7c via the outlet service pipe 3a and the intermediary pipe 6a.
  • the storage tank 4a is also connected to the consumer 4b via the outlet service pipe 3a and the product outlet pipe 3b.
  • the consumer 4b is connected to the return pipes 7a- 7c via a bidirectional consumer outlet service pipe 6c.
  • a single first bypass pipe 9 is used for the direct connection of the CIP outlet pipes 8a-8d to the outlet service pipe 3a.
  • a chosen cleaning fluid is switched into the inlet service pipe by switch ⁇ ing a valve of the corresponding outlet pipe of the cleaning-in-place installation to an opened state with respect to a passage of the cleaning fluid into the inlet service pipe and switching valves of the other outlet pipes of the cleaning-in-place installation to a closed state with respect to a passage of the cleaning fluid into the inlet service pipe.
  • the inlet service pipe 2 is cleaned much more often in a plant according to the solution of the invention, thus reducing the undesired idle time of the pipe 2.
  • fewer components are required and no complicated feedback circuits have to be considered for recirculating each cleaning fluid.
  • multiple cleaning operations are carried out by sequentially switching the at least one cleaning fluid into the inlet service pipe 2. For example a first cleaning process with a first cleaning fluid is carried out. Subsequently a second cleaning process with a second cleaning fluid is carried out. Finally a flushing procedure of residual cleaning fluid present in the storage tank is carried out with sterile water. All cleaning fluids and the sterile water travel through the inlet service pipe.
  • the plant la may comprise multiple storage tanks 4a, e.g. either for storing the same product to be delivered to different consumers 4b or each containing different products which are mixed in a further processing step.
  • the cleaning fluid may be directed into the storage tank with the shortest connection to the cleaning-in-place installation via its inlet service pipe and it is directed into subsequent tanks optionally via their respective inlet service pipes or via the first bypass pipe 9 and their respective outlet service pipes.
  • the product outlet pipe 3b is cleaned by first pushing a residual product located in the product outlet pipe 3b back into the storage tank 4a by means of gas, particularly air, particularly sterile air, originating from one of the CIP outlet pipes 8a-8d, in this case e.g.
  • gas particularly air, particularly sterile air
  • the liquid food processing plant la further comprises an inlet adapter module 15a for connecting the inlet service pipe 2 to the CIP outlet pipes 8a-8d of the cleaning-in-place installation 12 and an outlet adapter module 15b for connecting the outlet service pipe 3a to the CIP return pipes 7a-7c of the cleaning-in-place installation 12.
  • the inlet adapter module 15a comprises an inlet adapter pipe and a first valve array arranged along the inlet adapter pipe. Each valve of the first valve array connects a corresponding CIP outlet pipe 8a-8d of the cleaning-in-place installation 12 to the inlet service pipe 2.
  • the outlet adapter module 15b comprises an outlet adapter pipe and a second valve array arranged along the outlet adapter pipe. Each valve of the second valve array connects a corresponding CIP return pipe 7a-7c of the cleaning-in-place device 12 to the outlet service pipe 3a.
  • the valves of the first and second valve array are preferably double-seat valves.
  • the inlet adapter module 15a and/or the outlet adapter module 15b is/are replaceable by an inlet adapter module and/or an outlet adapter module with a different number of valves of the corresponding valve array.
  • an outlet adapter module 15a, 15b By providing a replaceable inlet and/or an outlet adapter module 15a, 15b it is possible to integrate the plant la with different types of CIP installations. Fur ⁇ thermore it is possible to adapt the plant la to a CIP installation with a different number of CIP outlet pipes for providing more or less types of cleaning fluids.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning In General (AREA)

Abstract

L'invention concerne un procédé pour le nettoyage en place d'une installation de traitement d'aliments liquides (la) comprenant au moins un réservoir de stockage (4a) pour stocker un aliment liquide, au moins un tuyau d'admission de produit pour introduire l'aliment liquide dans le réservoir de stockage (4a) et au moins un tuyau de sortie de produit pour distribuer l'aliment liquide depuis le réservoir de stockage (4a) à un consommateur (4b), comprenant en outre un tuyau d'admission de service (2) et un tuyau de sortie de service (3a), qui relient le réservoir de stockage (2) à une installation de nettoyage en place (12), conçue pour distribuer une pluralité de fluides de nettoyage. Le procédé comprend les étapes consistant à relier le tuyau d'admission de service (2) à une pluralité de tuyaux de sortie de NEP (8a-8d) de l'installation de nettoyage en place (12) et le tuyau de sortie de service (3a) à une pluralité de tuyaux d'admission de NEP (7a-7c) de l'installation de nettoyage en place (12) et à nettoyer le tuyau d'admission de service (2), le réservoir de stockage (4a) et le tuyau de sortie de service (3a) par circulation d'au moins un fluide de nettoyage depuis l'installation de nettoyage en place (12) à travers le tuyau d'admission de service (2), le réservoir de stockage (4a), le tuyau de sortie de service (3a) et retour dans l'installation de nettoyage en place (12). Seul le tuyau d'admission de service (2) est utilisé pour guider un ou plusieurs fluides de nettoyage dans le réservoir de stockage (4a).
PCT/CH2014/000082 2014-06-17 2014-06-17 Procédé et dispositif de nettoyage en place Ceased WO2015192254A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/CH2014/000082 WO2015192254A1 (fr) 2014-06-17 2014-06-17 Procédé et dispositif de nettoyage en place
CN201480079343.XA CN106413927A (zh) 2014-06-17 2014-06-17 就地清洁方法及装置
EP14738357.4A EP3157690A1 (fr) 2014-06-17 2014-06-17 Procédé et dispositif de nettoyage en place

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2014/000082 WO2015192254A1 (fr) 2014-06-17 2014-06-17 Procédé et dispositif de nettoyage en place

Publications (1)

Publication Number Publication Date
WO2015192254A1 true WO2015192254A1 (fr) 2015-12-23

Family

ID=51176013

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2014/000082 Ceased WO2015192254A1 (fr) 2014-06-17 2014-06-17 Procédé et dispositif de nettoyage en place

Country Status (3)

Country Link
EP (1) EP3157690A1 (fr)
CN (1) CN106413927A (fr)
WO (1) WO2015192254A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019037842A1 (fr) 2017-08-23 2019-02-28 Siemens Aktiengesellschaft Système et procédé pour établir et réaliser un procédé de nettoyage d'installation pour des installations techniques de procédé
CN110217742A (zh) * 2019-06-26 2019-09-10 合肥中辰轻工机械有限公司 一种果汁灌装机正逆cip清洗系统及工艺

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011009546A1 (fr) * 2009-07-24 2011-01-27 Khs Gmbh Installation de traitement et/ou de transformation de produits liquides et procédé de nettoyage des composants de ces installations
EP2527050A1 (fr) * 2011-05-26 2012-11-28 Skånemejerier AB Nouveau procédé

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011009546A1 (fr) * 2009-07-24 2011-01-27 Khs Gmbh Installation de traitement et/ou de transformation de produits liquides et procédé de nettoyage des composants de ces installations
EP2527050A1 (fr) * 2011-05-26 2012-11-28 Skånemejerier AB Nouveau procédé

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019037842A1 (fr) 2017-08-23 2019-02-28 Siemens Aktiengesellschaft Système et procédé pour établir et réaliser un procédé de nettoyage d'installation pour des installations techniques de procédé
CN110217742A (zh) * 2019-06-26 2019-09-10 合肥中辰轻工机械有限公司 一种果汁灌装机正逆cip清洗系统及工艺

Also Published As

Publication number Publication date
EP3157690A1 (fr) 2017-04-26
CN106413927A (zh) 2017-02-15

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