[특허]Method and system for tempering of product units in a tank, and application thereof

Utstyr & Kjoleservice A/S

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Method and system for tempering of product units in a tank, and application thereof

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F25D-017/02 A23L-003/36 C09K-005/10 F25D-013/06 F25C-001/00
출원번호	US-0552986 (2003-07-23)
등록번호	US-9151533 (2015-10-06)
우선권정보	NO-20031711 (2003-04-14)
국제출원번호	PCT/NO03/00254 (2003-07-23)
§371/§102 date	20060825 (20060825)
국제공개번호	WO2004/090443 (2004-10-21)
발명자 / 주소	Brekke, Tor
출원인 / 주소	Utstyr & Kjoleservice A/S
대리인 / 주소	Sterne, Kessler, Goldstein & Fox P.L.L.C.
인용정보	피인용 횟수 : 0 인용 특허 : 9

초록

The invention refers to a method for tempering, such as cooling, of a number of packaged units of products (bags) by using a coolant in the form of a mixture of ice cubes and water, and characterised by the fact that an ice slurry of water and ice particles is applied, and that the mixture is circulated around the units in order to cool them. Preferably, injectors should be utilised to pump the slurry around and in between the bags. The invention also refers to a system and an application.

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1. A method for tempering a plurality of packaged product units in a treatment tank, the method comprising: placing the plurality of packaged product units in the treatment tank, wherein the treatment tank comprises an overflow trough located at an upper part of the treatment tank;introducing an ice slurry comprising water and ice particles into the treatment tank to submerge the plurality of packaged product units, wherein the water comprises a saline brine in the form of a mixture of salt dissolved in fresh water and wherein the ice slurry comprises approximately 25% ice particles by weight, 2% sodium chloride by weight and the remainder fresh water, whereby the sodium chloride allows for the temperature of the ice slurry to be approximately −2.5 degrees Celsius without the water freezing; andcontinuously recirculating the ice slurry in the treatment tank around the plurality of packaged product units in order to cool the plurality of packaged product units, wherein an upper level of the ice slurry that has floated upward through the treatment tank flows into the overflow trough, is pumped through a pipe connected to the overflow trough and is injected back into the treatment tank through at least one injection nozzle located below the upper level of the ice slurry with sufficient force so that the ice slurry exiting the at least one injection nozzle recirculates between the plurality of packaged product units. 2. The method according to claim 1, wherein the plurality of packaged product units comprises vacuum packed products. 3. The method according to claim 2, wherein the vacuum packed products comprise a food stuff. 4. The method according to claim 1, wherein the at least one injection nozzle is positioned to inject the ice slurry present in the overflow trough horizontally into the treatment tank. 5. A method for tempering a plurality of packaged product units in a treatment tank, the method comprising: placing the plurality of packaged product units in the treatment tank, wherein the treatment tank comprises an overflow trough located at an upper part of the treatment tank;introducing an ice slurry comprising water and ice particles into the treatment tank to submerge the plurality of packaged product units, wherein the water comprises a saline brine in the form of a mixture of salt dissolved in fresh water and further wherein when the temperature of the ice slurry reaches approximately 0.5 degrees Celsius, additional ice slurry is introduced into the treatment tank from a supply tank in which the ice slurry is prepared with an adequate ratio of ice particles from an ice machine; andcontinuously recirculating the ice slurry in the treatment tank around the plurality of packaged product units in order to cool the plurality of packaged product units, wherein an upper level of the ice slurry that has floated upward through the treatment tank flows into the overflow trough, is pumped through a pipe connected to the overflow trough and is injected back into the treatment tank through at least one injection nozzle located below the upper level of the ice slurry with sufficient force so that the ice slurry exiting the at least one injection nozzle recirculates between the plurality of packaged product units. 6. The method of claim 5, wherein the ice slurry is prepared in the supply tank to comprise from about 15% to about 25% ice particles and has a temperature from about −1 degrees Celsius to about −2 degrees Celsius. 7. The method according to claim 5, wherein the ice slurry in the supply tank is kept in a condition which allows for pumping by stirring it with a paddle mechanism. 8. The method according to claim 5, wherein the plurality of packaged product units comprises vacuum packed products. 9. The method according to claim 8, wherein the vacuum packed products comprise a food stuff. 10. The method according to claim 5, wherein the at least one injection nozzle is positioned to inject the ice slurry present in the overflow trough horizontally into the treatment tank. 11. A method for tempering a plurality of packaged product units in a treatment tank, the method comprising: placing the plurality of packaged product units in the treatment tank, wherein the treatment tank comprises an overflow trough located at an upper part of the treatment tank;introducing an ice slurry comprising water and ice particles into the treatment tank to submerge the plurality of packaged product units, wherein the water comprises a saline brine in the form of a mixture of salt dissolved in fresh water; andcontinuously recirculating the ice slurry in the treatment tank around the plurality of packaged product units in order to cool the plurality of packaged product units, wherein an upper level of the ice slurry that has floated upward through the treatment tank flows into the overflow trough, is pumped through a pipe connected to the overflow trough and is injected back into the treatment tank through at least one injection nozzle located below the upper level of the ice slurry with sufficient force so that the ice slurry exiting the at least one injection nozzle recirculates between the plurality of packaged product units, wherein the plurality of packaged product units is a plurality of vacuum packed products and the method further comprises the following sequential steps:heating the plurality of vacuum packed products hanging side by side on a rack;transporting the rack with the plurality of vacuum packed products to the treatment tank;submerging the rack and the plurality of vacuum packed products in the treatment tank; andcooling the plurality of vacuum packed products for a predetermined period of time. 12. A system for tempering a plurality of packaged product units utilizing an ice slurry comprising water and ice particles, the system comprising: at least one treatment tank for submerging the plurality of packaged product units, wherein the at least one treatment tank comprises an upper part with an overflow trough;at least one injection nozzle positioned to inject ice slurry below an upper level of the ice slurry in the at least one treatment tank, said ice slurry comprising approximately 25% ice particles by weight, 2% sodium chloride by weight and the remainder fresh water, whereby the sodium chloride allows for the temperature of the ice slurry to be approximately −2.5 degrees Celsius without the water freezing;a pipe connecting the overflow trough and the at least one injection nozzle; anda pump associated with the pipe for continuously recirculating ice slurry that has floated upward through the treatment tank and into the overflow trough through the pipe and injecting the ice slurry back into the at least one treatment tank through the at least one injection nozzle with sufficient force so that the ice slurry exiting the at least one injection nozzle recirculates between the plurality of packaged product units in order to cool the at least one packaged product unit,wherein the water comprises a saline brine in the form of a mixture of salt dissolved in fresh water. 13. The system according to claim 12, further comprising: a supply tank, in which the ice slurry is prepared, connected to the at least one treatment tank; anda second pump and second pipe for circulating the ice slurry between the at least one treatment tank and the supply tank. 14. The system according to claim 12, further comprising: a transport organ for continual transport of the plurality of packaged product units to the at least one treatment tank for cooling with suspension for a required period of time. 15. The system according to claim 12, further comprising: a rack on which the plurality of packaged product units hangs while submerged in the at least one treatment tank. 16. The system according to claim 12, wherein the at least one injection nozzle is positioned to inject the ice slurry present in the overflow trough horizontally into the treatment tank.

인용문헌 (9)

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Method and system for tempering of product units in a tank, and application thereof

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Method and system for tempering of product units in a tank, and application thereof

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