WO2012005502A2 - High-efficiency pasteurizing cooler - Google Patents

High-efficiency pasteurizing cooler Download PDF

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Publication number
WO2012005502A2
WO2012005502A2 PCT/KR2011/004921 KR2011004921W WO2012005502A2 WO 2012005502 A2 WO2012005502 A2 WO 2012005502A2 KR 2011004921 W KR2011004921 W KR 2011004921W WO 2012005502 A2 WO2012005502 A2 WO 2012005502A2
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WO
WIPO (PCT)
Prior art keywords
preheating
water tank
tank
cooling water
water
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PCT/KR2011/004921
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French (fr)
Korean (ko)
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WO2012005502A3 (en
Inventor
정광주
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(주)미래비엠
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Publication of WO2012005502A2 publication Critical patent/WO2012005502A2/en
Publication of WO2012005502A3 publication Critical patent/WO2012005502A3/en

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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/02—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating materials in packages which are progressively transported, continuously or stepwise, through the apparatus
    • A23L3/04—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating materials in packages which are progressively transported, continuously or stepwise, through the apparatus with packages on endless chain or band conveyors
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/16—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials
    • A23L3/18—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials while they are progressively transported through the apparatus
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/16—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials
    • A23L3/18—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials while they are progressively transported through the apparatus
    • A23L3/185—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials while they are progressively transported through the apparatus in solid state
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/16—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials
    • A23L3/18—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials while they are progressively transported through the apparatus
    • A23L3/20—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials while they are progressively transported through the apparatus with transport along plates
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/36—Freezing; Subsequent thawing; Cooling
    • A23L3/361—Freezing; Subsequent thawing; Cooling the materials being transported through or in the apparatus, with or without shaping, e.g. in form of powder, granules, or flakes
    • A23L3/362—Freezing; Subsequent thawing; Cooling the materials being transported through or in the apparatus, with or without shaping, e.g. in form of powder, granules, or flakes with packages or with shaping in form of blocks or portions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
    • Y02A40/963—Off-grid food refrigeration
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
    • Y02P60/85—Food storage or conservation, e.g. cooling or drying

Definitions

  • the present invention relates to a high-efficiency pasteurization cooler, and more particularly, in a pasteurization cooler for maintaining the quality of food during manufacture and distribution of the food, pasteurization without destroying nutrients or vitamins contained in the food
  • the present invention relates to a high-efficiency pasteurization cooler that sterilizes foods in a more economical way and preserves them by using less energy by allowing energy to be released to the outside atmosphere without changing the properties of the sterilized foods. .
  • pasteurization means a method of heat sterilization such as food at a temperature of 100 degrees Celsius or less. It was also called Pasteur sterilization by taking the name of Pasteur from the first introduction of wine sterilization by Louis Pasteur and Claude Bernard, fathers of microbiology in 1866. In contrast to the high temperature sterilization method introduced later (at least 100 ° C.), it is called pasteurization method.
  • the pasteurization method is mainly used for milk, juice, eggs, beer, etc., and sterilizes foods containing nutrients that are easily deteriorated at high temperature by heating at a low temperature (60-98 ° C.) for a certain time.
  • a low temperature 60-98 ° C.
  • the sterilization of milk, juice, etc. is performed at a low temperature, and less beneficial components such as nutrients and vitamins contained in the sterilizing substance are destroyed, and in the case of wine or alcohol, the alcohol contained therein is not evaporated. It can be sterilized without harm.
  • the pasteurization method does not kill the microorganisms completely, but aims to reduce the degree to no harm. Therefore, some heat-resistant bacteria may remain, so the shelf life is generally set shorter than that of the hot pasteurized product.
  • sterilizers include a long time sterilization at low temperature, a short time sterilization at a high temperature, and a micro filter and a micro filter by using a heat conduction convection method through a high temperature heat vapor in a tank. Filtering method or pasteurization method using a high voltage pulse is generally used.
  • the method of sterilization for a long time at low temperature by using heat conduction convection is not only difficult to perfect sterilization at low temperature because it is heated unevenly according to the thickness of the food while the food to be sterilized is heated up to the temperature required for sterilization. Inherent physical properties of the food may be changed.
  • the sterilized liquid food when a high voltage pulse is used, the sterilized liquid food generally has a very good electrical conductivity compared to water, and thus a large amount of heat is generated by electric discharge. This heat rise can destroy the nutrients and various vitamins contained in the liquid food. Therefore, a cooler is usually installed and the liquid food that has been sterilized by the cooler must be cooled.
  • the pasteurization cooler is used to sterilize and sterilize by keeping hot water temperature above 80 °C for a certain time by directly spraying the steam of high temperature generated from the boiler when supplying the food to be stored in the heating tank. It refers to a system that can move to a cooling water tank to cool to about 15 °C by a cooling chiller (chiller) to preserve the food.
  • FIG. 1 is a schematic diagram of the pasteurization cooler of the steam heating method according to the prior art.
  • the pasteurization cooler according to the prior art is composed of a heating water tank 10, a cooling water tank 20, a steam boiler 30, and a freezer 40 as basic skeletons.
  • the structure and operation of the pasteurization cooler according to the prior art will be described.
  • packaged foods 1, such as milk and juice, which are subject to pasteurization, are put into a heating bath 10 for sterilization.
  • the heating water tank 10 is filled with water, and a conveyor belt 12 is installed at the upper end thereof so that the food 1 can continuously and continuously move.
  • the lower portion of the heating water tank 10 is installed so as to project slightly from the bottom surface of the heating water tank 10 in a form in which the steam injection pipe 3 is submerged in water.
  • the steam injection pipe 3 is connected to the steam boiler 30 installed outside the heating water tank 10.
  • the steam boiler 30 When the steam boiler 30 is operated, the steam boiler 30 generates steam by boiling water contained in the water tank and heats it.
  • the steam heated in the steam boiler is injected into the water through the steam injection port on the top of the steam injection pipe 3 protruding into the water in the heating water tank 10 to heat the water inside the heating water tank 10.
  • the temperature of the heating water filled in the heating water tank 10 is managed so that it may be 80 degreeC or more.
  • the food 1 introduced into the heating water tank 10 is pasteurized by heating water of 80 ° C. or higher while being moved in the heating water by the conveyor belt 12.
  • the heating time can vary depending on the type, thickness, etc. of the food, which can be adjusted by increasing or decreasing the moving time of the conveyor belt 12.
  • the food 1 that has been sterilized in the heating water tank 10 is transferred to the cooling water tank 20.
  • the cooling water tank 20 is also filled with water, and the conveyor belt 22 is installed at the upper end thereof so that the food 1 can continuously and continuously move.
  • the lower portion of the cooling water tank 20 is installed to slightly protrude from the bottom surface of the cooling water tank 20 in the form of the cooling water supply pipe 4 submerged in water.
  • the cooling water supply pipe 4 is connected to the pipe together with the refrigerator 40 and the pump 6 installed outside the cooling water tank 20.
  • the refrigerator 40 cools the water contained in the water tank, and the cooled water supplies the cooling water supply pipe 4 protruding into the water (cooling water) inside the cooling water tank 20.
  • the water in the cooling water tank 20 is cooled while being introduced into the cooling water tank 20 through the cooling water tank 20.
  • the temperature of the cooling water is controlled to be about 15 ° C.
  • the sterilized food 1 introduced into the cooling water tank 20 is cooled while being moved in the cooling water by the conveyor belt 22.
  • the cooling time can be varied depending on the type, thickness, etc. of the food, which can be adjusted by increasing or decreasing the moving time of the conveyor belt 22.
  • the water heated to the cooling function in the cooling water tank 20 is moved by being pressurized by the pump 6 through the cooling water discharge pipe 4 'and then cooled in contact with the evaporator of the freezer 40 and then cooled again. It has a structure that circulates.
  • the pasteurization cooler of the prior art as described above consumes a lot of energy in order to increase the temperature of the water in the heating water tank 10 by operating a steam boiler in the sterilization step, and in the cooling water tank 20 in the subsequent cooling step. There is also a problem in that a lot of energy must be wasted to lower the temperature of the filled coolant.
  • the temperature of the heated water in the heated water tank 10 is 15 to 20 ° C. (10)
  • the temperature of the product 1 introduced into the heated water tank 10 is 15 to 20 ° C. (10)
  • the temperature of the water inside is sharply lowered so that the fuel consumption of the steam boiler is greatly increased in order to maintain the temperature of the water above 80 ° C.
  • the cooling water of the cooling water tank 20 receives externally the heat absorbed by the evaporator from the condenser while circulating through the freezer 40. There is a problem that heat energy is wasted due to the emission to the atmosphere.
  • the present invention was devised to solve all the problems of the prior art as described above, while maintaining the process of increasing the temperature of the heating water in the heating water tank 10 by operating the steam boiler in the sterilization step, the cooling water tank 20 In the process of circulating the heated water through the freezer (40), the heat energy absorbed by the evaporator is not released from the condenser to the outside atmosphere, and the heat energy is re-used in the preheating process before the pasteurization process. It is an object to provide an improved pasteurization cooler.
  • the preheating tank for preheating the product;
  • a heating tank for heat sterilizing the product preheated in the preheating tank;
  • a cooling water tank for cooling the sterilized product in the heating water tank; It is connected to the cooling tank and the preheating tank and the pipe is characterized in that consisting of a heat pump for cooling and circulating the cooling water of the cooling water tank, and preheating circulation of the preheating water of the preheating tank.
  • the preheating tank, the heating tank, the cooling water tank is characterized in that the conveyor belt for transferring the product is installed, the heating water tank is characterized in that the heating by the steam generated in the steam boiler.
  • the pipe connected between the heat pump and the cooling water tank is configured to cool the water in the pipe while passing through the evaporator of the heat pump, and the pipe connected between the heat pump and the preheating water tank passes through the condenser of the heat pump.
  • the water in the pipe is to be preheated while the pipe of the cooling tank is installed so that the cooling water in the cooling water tank circulates through the heat pump to the cooling water tank, the pipe of the preheating tank is the preheating water of the preheating tank It is characterized in that the pump is installed to circulate through the preheating tank.
  • the heat energy absorbed by the evaporator is not discharged from the condenser to the outside atmosphere and used again in the pasteurization process. This can significantly improve the thermal efficiency of pasteurization chillers, save energy, and significantly reduce energy costs.
  • FIG. 1 is a schematic diagram of a pasteurization cooler of a steam heating method according to the prior art.
  • FIG. 2 is a schematic diagram of a high efficiency pasteurization cooler according to the present invention.
  • FIG. 2 is a schematic diagram of a high efficiency pasteurization cooler according to the present invention.
  • the high-efficiency pasteurization cooler of the present invention has a preheating tank 50 for preheating the product 1 to be sterilized. And a heating water tank 10 for heat sterilizing the product (1) preheated adjacent to the preheating tank 50, and a cooling water tank 20 for cooling the product 1 sterilized in the heating water tank is provided have.
  • the product (1) subject to pasteurization is applicable to milk, juice, beer, eggs and the like, but is not limited thereto, and may be all subject to the application of pasteurization.
  • the heat pump 60 is installed on the outside of the cooling water tank 20 instead of the freezer 40, and the heat pump 60 is connected to the cooling water tank 20 and the preheating water tank 50 by piping to the cooling water tank ( The cooling water of 20) is circulated by cooling, and the preheating water of the preheating tank 50 is preheated.
  • the portion enclosed by a dotted line in FIG. 1 exemplarily shows newly added portions in the present invention as compared with the prior art.
  • the food 1, which is the target of pasteurization, is first introduced into the preheating tank 50 before being introduced into the heating bath 10 for sterilization.
  • the preheating tank 50 is filled with water, and an upper end thereof is provided with a conveyor belt 52 so that the food 1 can continuously and continuously move.
  • a lower portion of the preheating tank 50 is installed to slightly protrude from the bottom surface of the preheating tank 50 in a form in which the preheating water supply pipe 5 and the preheating water discharge pipe 5 'are submerged in water.
  • the preheated water supplied to the preheating tank 50 is warmed through the heat pump 60 and circulated to the preheating tank 50.
  • the pipe connected between the heat pump 60 and the preheating tank 50 is configured to preheat water while passing through the condenser of the heat pump 60. That is, the heat absorbed by the evaporator of the heat pump 60 is compressed to 60 ⁇ 70 °C in the compressor is sent to the preheating tank 50 to raise the temperature of the preheating water in the preheating tank 50 to 50 ⁇ 60 °C
  • the preheated water thus preheated is supplied to the preheating tank 50 through the preheating water supply pipe 5, and the water cooled to about 45 ° C. after the preheating function is returned to the preheating water discharge pipe 5 ′ and pumped again. Receives the pressure of 7) is introduced into the heat pump 60 is heated again to repeat the circulation process to move toward the preheating tank (50).
  • the food 1 introduced into the preheating tank 50 is preheated by the preheated water of about 50 ° C. heated while moving in the water on the conveyor belt 52.
  • the preheating time can be varied by the kind, thickness, etc. of the food, which can be adjusted by increasing or decreasing the moving time of the conveyor belt 52.
  • the sterilization process starts when the food 1 arrives at the heating water tank 10.
  • the steam boiler 30 When the steam boiler 30 is operated, the steam boiler 30 generates steam by boiling water contained in the water tank and heats it.
  • the steam heated in the steam boiler is injected into the water through the steam injection port on the top of the steam injection pipe (3) protruding into the water in the heating water tank 10, heating the water (heating water) inside the heating water tank (10). Done.
  • the temperature of the heating water is managed to be 80 ° C or higher.
  • the food 1 injected into the heating water tank 10 is pasteurized by heated water of 80 ° C. or higher heated while moving in the heating water on the conveyor belt 2.
  • the heating time can vary depending on the type, thickness, etc. of the food, which can be adjusted by increasing or decreasing the moving time of the conveyor belt 2.
  • the food 1 that has been sterilized in the heating water tank 10 is transferred to the cooling water tank 20.
  • the cooling water tank 20 is also filled with water, and the conveyor belt 22 is installed at the upper end thereof so that the food 1 can continuously and continuously move.
  • the lower portion of the cooling water tank 20 is installed so that the cooling water supply pipe 4 and the cooling water discharge pipe 4 'are slightly protruded from the bottom surface of the cooling water tank 20 so as to be submerged in water.
  • the cooling water supply pipe 4 and the cooling water discharge pipe 4 ' are connected to the heat pump 60 by piping.
  • the cooling water supplied to the cooling water tank 20 is cooled through the heat pump 60 and circulated to the cooling water tank 20.
  • the refrigerant absorbs heat while passing through the evaporator of the heat pump 60 to exchange heat, thereby cooling the water in the pipe to about 10 ° C., and cooling the water to the heat pump 60.
  • the temperature of the cooling water is controlled to be about 15 ° C.
  • the food 1 heated in the pasteurization process introduced into the cooling water tank 20 is cooled while moving in the water on the conveyor belt 22.
  • the cooling time can be varied depending on the type, thickness, etc. of the food, which can be adjusted by increasing or decreasing the moving time of the conveyor belt 22.
  • the water that has been cooled in the cooling water tank 20 and warmed to about 20 ° C. is lowered to the lower portion of the cooling water tank 20 through the cooling water discharge pipe 4 ′, and the discharged water is again pressurized by the pump 6. Passes through the heat pump (60).
  • the water cooled while passing through the evaporator of the heat pump 60 is sent back to the cooling water tank 20 to repeat the circulating process.

Abstract

The present invention relates to a high-efficiency pasteurizing cooler, and more particularly, to a pasteurizing cooler for maintaining the quality of food during the preparation and distribution of the food, wherein the pasteurizing cooler pasteurizes the food while preventing the destruction of nutrients or vitamins contained in the food, avoids changes in the physical properties of the food being pasteurized, and reuses the energy being discharged to the atmosphere, thereby pasteurizing the food and preserving the pasteurized food in a cooled condition using less energy in an economically advantageous manner. The high-efficiency pasteurizing cooler of the present invention comprises: a preheating water tank for preheating a product; a heating water tank for heating and sterilizing the product preheated in the preheating water tank; a cooling water tank for cooling the product sterilized in the heating water tank; and a heat pump which is connected to the cooling water tank and to the preheating water tank via a pipeline so as to cool and circulate the cooling water of the cooling water tank and to preheat and circulate the preheating water of the preheating water tank. According to the present invention, thermal energy absorbed in an evaporator, which might otherwise be discharged by a condenser, is prevented from being discharged to the atmosphere in the process of circulating warm water obtained after a cooling operation in the cooling water tank (20) performed by a refrigerating machine (40), and the thermal energy is reused in the pasteurizing process, to thereby remarkably improve the heating efficiency of the pasteurizing cooler, and attain the economical effects of saving energy and significantly reducing energy costs.

Description

고효율 저온살균 냉각기High Efficiency Pasteurization Cooler
본 발명은 고효율 저온살균 냉각기에 관한 것으로, 보다 상세하게는, 식품의 제조 및 유통 시 식품의 품질 유지를 위한 저온살균 냉각기에 있어서, 식품 중에 함유된 영양소나 비타민 등을 파괴시키지 않고 저온 살균하고 피 살균 식품의 물성을 변화시키지 않으면서, 외부 대기로 방출되는 에너지를 재활용할 수 있도록 함으로써 보다 적은 에너지를 이용하여 보다 경제적인 방법으로 식품을 살균하고, 냉각 보존할 수 있는 고효율 저온살균 냉각기에 관한 것이다.The present invention relates to a high-efficiency pasteurization cooler, and more particularly, in a pasteurization cooler for maintaining the quality of food during manufacture and distribution of the food, pasteurization without destroying nutrients or vitamins contained in the food The present invention relates to a high-efficiency pasteurization cooler that sterilizes foods in a more economical way and preserves them by using less energy by allowing energy to be released to the outside atmosphere without changing the properties of the sterilized foods. .
일반적으로 저온살균법( Pasteurization) 이란 식품 등의 가열 살균법 중에서 섭씨100도 이하의 온도로 행하는 방법을 의미한다. 1866년에 미생물학의 아버지인 루이 파스퇴르와 클로드 베르나르에 의해서 포도주의 살균법으로서 최초로 도입된 것으로부터 파스퇴르의 이름을 취해 파스퇴르 살균법이라고도 불린다. 후에 도입된 고온 살균법(100℃ 이상)과 대비되어, 저온 살균법이라고 불리게 되었다.In general, pasteurization means a method of heat sterilization such as food at a temperature of 100 degrees Celsius or less. It was also called Pasteur sterilization by taking the name of Pasteur from the first introduction of wine sterilization by Louis Pasteur and Claude Bernard, fathers of microbiology in 1866. In contrast to the high temperature sterilization method introduced later (at least 100 ° C.), it is called pasteurization method.
저온 살균법은 주로 우유, 쥬스, 달걀, 맥주 등에 사용하며, 고온에서 변질되기 쉬운 영양소가 들어있는 식품을 저온(60~98℃)에서 일정 시간 가열해서 살균하는 방법이다. 일반적으로 우유, 쥬스 등의 살균은 저온에서 이루어 질수록 피 살균 물질에 함유되어 있는 영양소나 비타민 등의 유익한 성분이 적게 파괴되며, 와인이나 술의 경우에는 여기에 포함되는 알코올이 증발되지 않으면서 풍미를 해치지 않고 살균할 수 있다. The pasteurization method is mainly used for milk, juice, eggs, beer, etc., and sterilizes foods containing nutrients that are easily deteriorated at high temperature by heating at a low temperature (60-98 ° C.) for a certain time. In general, the sterilization of milk, juice, etc. is performed at a low temperature, and less beneficial components such as nutrients and vitamins contained in the sterilizing substance are destroyed, and in the case of wine or alcohol, the alcohol contained therein is not evaporated. It can be sterilized without harm.
저온 살균법은, 미생물을 완전하게 사멸시키는 것이 아니고, 해가 없는 정도까지 감소시키는 것을 목적으로 하고 있다. 따라서 일부의 내열균이 남아있을 수 있어 일반적으로 유통기한은 고온 살균제품보다 짧게 설정되어 있다. The pasteurization method does not kill the microorganisms completely, but aims to reduce the degree to no harm. Therefore, some heat-resistant bacteria may remain, so the shelf life is generally set shorter than that of the hot pasteurized product.
종래부터 사용되고 있는 살균기로서는, 주로 탱크 내에서 고온의 열증기(熱蒸氣)를 통한 열전도대류 방식에 의하여 저온에서 장시간 살균하는 방식과 고온에서 단시간 살균하는 방식과 마이크로 필터 및 미세 필터를 사용하여 세균 등을 여과하는 방식 또는 고전압 펄스를 이용한 저온살균 방식 등이 일반적으로 사용되고 있다.Conventionally used sterilizers include a long time sterilization at low temperature, a short time sterilization at a high temperature, and a micro filter and a micro filter by using a heat conduction convection method through a high temperature heat vapor in a tank. Filtering method or pasteurization method using a high voltage pulse is generally used.
열전도 대류를 사용하여 저온에서 장시간 살균하는 방식은 살균 대상 식품이 살균에 필요한 온도까지 가열되는 과정에서 식품의 두께 등에 따라 불균일 하게 가열되기 때문에 저온에서 완벽한 살균이 어려울 뿐만 아니라 열증기의 접촉에 의하여 살균 대상 식품의 고유한 물성(物性)이 변화될 수 있다. The method of sterilization for a long time at low temperature by using heat conduction convection is not only difficult to perfect sterilization at low temperature because it is heated unevenly according to the thickness of the food while the food to be sterilized is heated up to the temperature required for sterilization. Inherent physical properties of the food may be changed.
또한 마이크로 필터 등을 사용하여 여과(濾過)하는 경우에는 위생, 세척 과정이 매우 어려울 뿐만 아니라 필터 자체가 고가(高價)이고, 고온 처리할 경우에 고유한 맛, 향, 영양소(營養素), 색상 등이 쉽게 변화되기 때문에 본래의 고유한 물성을 유지하는 것이 어렵다. In addition, in the case of filtration using a micro filter, the hygienic and washing process is very difficult, and the filter itself is expensive, and inherent taste, aroma, nutrient, color, etc., when the high temperature treatment is performed Because of this easy change, it is difficult to maintain the original inherent physical properties.
또한 고전압 펄스를 사용하는 경우 피 살균 액체식품은 일반적으로 물에 비하여 전기 전도도가 매우 우수하기 때문에, 전기 방전에 의하여 다량의 열이 발생한다. 이 열에 의한 온도 상승은 액체식품 중에 포함된 영양소나 각종 비타민을 파괴할 수 있기 때문에, 통상 냉각기가 설치되고 이 냉각기에 의해 살균과정을 거친 액체식품을 냉각시켜 주어야 한다. In addition, when a high voltage pulse is used, the sterilized liquid food generally has a very good electrical conductivity compared to water, and thus a large amount of heat is generated by electric discharge. This heat rise can destroy the nutrients and various vitamins contained in the liquid food. Therefore, a cooler is usually installed and the liquid food that has been sterilized by the cooler must be cooled.
이상과 같은 종래의 저온살균기의 문제들을 개선하기 위하여 다소 개선되어 개발된 것이 증기가열 방식의 저온살균 냉각기이다. 저온살균 냉각기란 살균하여 보관코자 하는 식품을 가열수조에 공급 시 보일러에서 생성된 고열의 수증기를 가열수조에 직접 분사하여 80℃ 이상으로 온수온도를 일정시간 유지하여 살균작용을 하도록 하고, 이어 동 식품을 냉각수조로 이동시켜 냉각 칠러(chiller)에 의해 약 15℃로 냉각하여 동 식품을 보존할 수 있도록 하는 시스템을 말한다. In order to improve the problems of the conventional pasteurizer as described above, a slightly improved development is a pasteurization cooler of the steam heating method. The pasteurization cooler is used to sterilize and sterilize by keeping hot water temperature above 80 ℃ for a certain time by directly spraying the steam of high temperature generated from the boiler when supplying the food to be stored in the heating tank. It refers to a system that can move to a cooling water tank to cool to about 15 ℃ by a cooling chiller (chiller) to preserve the food.
도 1은 이와 같은 종래기술에 의한 증기 가열 방식의 저온살균 냉각기의 개요도이다. 도 1에 나타난 바와 같이 종래기술에 의한 저온살균 냉각기는 가열수조(10), 냉각수조(20), 증기 보일러(30) 및 냉동기(40)를 기본 골격으로 하여 구성되어 있다. 이하 종래기술에 의한 저온살균 냉각기의 구성 및 작용에 대하여 설명한다. Figure 1 is a schematic diagram of the pasteurization cooler of the steam heating method according to the prior art. As shown in FIG. 1, the pasteurization cooler according to the prior art is composed of a heating water tank 10, a cooling water tank 20, a steam boiler 30, and a freezer 40 as basic skeletons. Hereinafter, the structure and operation of the pasteurization cooler according to the prior art will be described.
우선 종래기술에서는 저온살균의 대상이 되는 우유, 주스 등 포장된 식품(1)이 살균을 위하여 가열수조(10)로 넣어진다. 가열수조(10)에는 물이 가득 채워져 있으며, 그 상단부로는 상기 식품(1)이 자동적으로 연속하여 이동할 수 있도록 컨베이어 벨트(12)가 설치되어 있다. 상기 가열수조(10)의 하부에는 증기분사 파이프(3)가 물 속에 잠기는 형태로 가열수조(10)의 바닥 면에서 약간 돌출하도록 설치되어 있다. 상기 증기분사 파이프(3)는 가열수조(10)의 외부에 설치된 증기 보일러(30)와 배관 연결되어 있다. First, in the prior art, packaged foods 1, such as milk and juice, which are subject to pasteurization, are put into a heating bath 10 for sterilization. The heating water tank 10 is filled with water, and a conveyor belt 12 is installed at the upper end thereof so that the food 1 can continuously and continuously move. The lower portion of the heating water tank 10 is installed so as to project slightly from the bottom surface of the heating water tank 10 in a form in which the steam injection pipe 3 is submerged in water. The steam injection pipe 3 is connected to the steam boiler 30 installed outside the heating water tank 10.
증기 보일러(30)를 작동시키면, 증기 보일러(30)는 물탱크에 내장된 물을 끓여서 증기를 발생시키고 이를 가열한다. 증기 보일러에서 가열된 증기는 가열수조(10) 내부의 물 속에 돌출되어 있는 증기분사 파이프(3) 상단의 증기 분사구를 통하여 물 속에서 분사되면서 가열수조(10) 내부의 물을 가열하게 된다. 가열수조(10) 내부에 채워진 가열수의 온도는 80℃ 이상이 되도록 관리된다. When the steam boiler 30 is operated, the steam boiler 30 generates steam by boiling water contained in the water tank and heats it. The steam heated in the steam boiler is injected into the water through the steam injection port on the top of the steam injection pipe 3 protruding into the water in the heating water tank 10 to heat the water inside the heating water tank 10. The temperature of the heating water filled in the heating water tank 10 is managed so that it may be 80 degreeC or more.
가열수조(10)로 투입된 식품(1)은 컨베이어 벨트(12)를 타고 가열수 속에서 이동되면서 80℃ 이상의 가열수에 의하여 저온 살균된다. 가열시간은 식품의 종류, 두께 등에 의하여 변동 가능하며, 이는 컨베이어 벨트(12)의 이동시간을 늘이거나 줄임으로써 조정 가능하다.The food 1 introduced into the heating water tank 10 is pasteurized by heating water of 80 ° C. or higher while being moved in the heating water by the conveyor belt 12. The heating time can vary depending on the type, thickness, etc. of the food, which can be adjusted by increasing or decreasing the moving time of the conveyor belt 12.
가열수조(10)에서의 살균 과정을 마친 식품(1)은 냉각수조(20)로 옮겨진다. 냉각수조(20)에도 물이 가득 채워져 있으며, 그 상단부로는 상기 식품(1)이 자동적으로 연속하여 이동할 수 있도록 컨베이어 벨트(22)가 설치되어 있다. 상기 냉각수조(20)의 하부에는 냉각수 공급 파이프(4)가 물 속에 잠기는 형태로 냉각수조(20)의 바닥 면에서 약간 돌출하도록 설치되어 있다. 상기 냉각수 공급 파이프(4)는 냉각수조(20)의 외부에 설치된 냉동기(40) 및 펌프(6)와 함께 배관으로 연결되어 있다. The food 1 that has been sterilized in the heating water tank 10 is transferred to the cooling water tank 20. The cooling water tank 20 is also filled with water, and the conveyor belt 22 is installed at the upper end thereof so that the food 1 can continuously and continuously move. The lower portion of the cooling water tank 20 is installed to slightly protrude from the bottom surface of the cooling water tank 20 in the form of the cooling water supply pipe 4 submerged in water. The cooling water supply pipe 4 is connected to the pipe together with the refrigerator 40 and the pump 6 installed outside the cooling water tank 20.
냉동기(40)를 작동시키면, 냉동기(40)는 물탱크에 내장된 물을 냉각하고, 이 냉각된 물은 냉각수조(20) 내부의 물(냉각수) 속에 돌출되어 있는 냉각수 공급 파이프(4)를 통하여 냉각수조(20) 내부로 인입되면서 냉각수조(20)의 물을 냉각한다. 냉각수의 온도는 약15℃가 되도록 관리된다..When the refrigerator 40 is operated, the refrigerator 40 cools the water contained in the water tank, and the cooled water supplies the cooling water supply pipe 4 protruding into the water (cooling water) inside the cooling water tank 20. The water in the cooling water tank 20 is cooled while being introduced into the cooling water tank 20 through the cooling water tank 20. The temperature of the cooling water is controlled to be about 15 ° C.
냉각수조(20)로 투입된 살균된 식품(1)은 컨베이어 벨트(22)를 타고 냉각수 속에서 이동되면서 냉각된다. 냉각시간은 식품의 종류, 두께 등에 의하여 변동 가능하며, 이는 컨베이어 벨트(22)의 이동시간을 늘이거나 줄임으로써 조정 가능하다. 냉각수조(20)에서 냉각기능을 다하고 데워진 물은 냉각수 배출 파이프(4')를 거쳐 펌프(6)의 가압을 받아 이동하면서 냉동기(40)의 증발기와 접촉하여 냉각된 후 다시 냉각수조(20)로 순환하는 구조로 되어 있다.The sterilized food 1 introduced into the cooling water tank 20 is cooled while being moved in the cooling water by the conveyor belt 22. The cooling time can be varied depending on the type, thickness, etc. of the food, which can be adjusted by increasing or decreasing the moving time of the conveyor belt 22. The water heated to the cooling function in the cooling water tank 20 is moved by being pressurized by the pump 6 through the cooling water discharge pipe 4 'and then cooled in contact with the evaporator of the freezer 40 and then cooled again. It has a structure that circulates.
그러나 상기와 같은 종래기술의 저온살균 냉각기는, 살균단계에서는 증기보일러를 가동시켜 가열수조(10) 속의 물의 온도를 높이기 위하여 많은 에너지를 소모하고, 곧 이어 진행되는 냉각단계에서는 냉각수조(20) 속에 채워진 냉각수의 온도를 내리기 위하여 또한 많은 에너지를 낭비해야 하는 문제점이 있다. However, the pasteurization cooler of the prior art as described above consumes a lot of energy in order to increase the temperature of the water in the heating water tank 10 by operating a steam boiler in the sterilization step, and in the cooling water tank 20 in the subsequent cooling step. There is also a problem in that a lot of energy must be wasted to lower the temperature of the filled coolant.
즉, 가열수조(10) 속의 가열수의 온도를 80℃ 이상으로 유지하기 위하여 많은 에너지가 필요하고 또한 가열수조(10)로 투입되는 제품(1)의 온도가 15~20℃인 관계로 가열수조(10)내부의 물의 온도가 급격히 저하되어 이 물의 온도를 80℃ 이상으로 유지하기 위하여 증기 보일러의 연료 사용량이 크게 증가하는 문제점이 있다. 또한 냉각수조(20)의 냉각수는 80℃ 이상으로 가열된 제품(1)의 온도를 약 15℃ 정도로 내리기 위하여, 냉각수가 냉동기(40)를 통하여 순환하는 과정에서 증발기에서 흡수한 열을 응축기에서 외부 대기로 방출하는 관계로 열에너지가 낭비되는 문제점이 있다. That is, a large amount of energy is required to maintain the temperature of the heated water in the heated water tank 10 at 80 ° C. or higher, and the temperature of the product 1 introduced into the heated water tank 10 is 15 to 20 ° C. (10) There is a problem in that the temperature of the water inside is sharply lowered so that the fuel consumption of the steam boiler is greatly increased in order to maintain the temperature of the water above 80 ° C. In addition, in order to lower the temperature of the product 1 heated to 80 ° C. or more to about 15 ° C., the cooling water of the cooling water tank 20 receives externally the heat absorbed by the evaporator from the condenser while circulating through the freezer 40. There is a problem that heat energy is wasted due to the emission to the atmosphere.
본 발명은 상기한 바와 같은 종래기술의 제반 문제점을 해결하기 위하여 창안된 것으로, 살균단계에서 증기보일러를 가동시켜 가열수조(10) 속의 가열수의 온도를 높이는 과정은 그대로 유지하되, 냉각수조(20)에서 데워진 물을 냉동기(40)를 통하여 순환하는 과정에서는 증발기에서 흡수된 열에너지를 응축기에서 외부 대기로 방출하지 아니하고 이 열에너지를 저온살균 과정의 전 단계인 예열과정에 다시 이용할 수 있도록 하여 열효율이 현저히 개선된 저온살균 냉각기를 제공하는 것을 목적으로 한다. The present invention was devised to solve all the problems of the prior art as described above, while maintaining the process of increasing the temperature of the heating water in the heating water tank 10 by operating the steam boiler in the sterilization step, the cooling water tank 20 In the process of circulating the heated water through the freezer (40), the heat energy absorbed by the evaporator is not released from the condenser to the outside atmosphere, and the heat energy is re-used in the preheating process before the pasteurization process. It is an object to provide an improved pasteurization cooler.
상기와 같은 목적을 달성하기 위하여, 본 발명인 고효율 저온살균 냉각기는, 제품을 예열시키기 위한 예열 수조와; 상기 예열수조에서 예열된 제품을 가열 멸균시키기 위한 가열 수조와; 상기 가열수조에서 멸균 처리된 제품을 냉각시키기 위한 냉각수조와; 상기 냉각수조 및 예열수조와 배관으로 연결되어 냉각수조의 냉각수를 냉각 순환시키고, 예열수조의 예열수를 예열 순환시키도록 된 히트펌프로 구성되는 것을 특징으로 한다. In order to achieve the above object, the high-efficiency pasteurization cooler of the present invention, the preheating tank for preheating the product; A heating tank for heat sterilizing the product preheated in the preheating tank; A cooling water tank for cooling the sterilized product in the heating water tank; It is connected to the cooling tank and the preheating tank and the pipe is characterized in that consisting of a heat pump for cooling and circulating the cooling water of the cooling water tank, and preheating circulation of the preheating water of the preheating tank.
또한 본 발명에서 상기 예열수조, 가열수조, 냉각수조에는 제품을 이송하기 위한 컨베이어 벨트가 설치되어 있는 것을 특징으로 하고, 상기 가열수조는 증기 보일러에서 발생되는 증기에 의해 가열되는 것을 특징으로 한다. In the present invention, the preheating tank, the heating tank, the cooling water tank is characterized in that the conveyor belt for transferring the product is installed, the heating water tank is characterized in that the heating by the steam generated in the steam boiler.
또한 본 발명에서 상기 히트펌프와 냉각수조 사이에 연결된 배관은 상기 히트펌프의 증발기를 통과하면서 배관내의 물이 냉각되도록 되어 있고, 상기 히트펌프와 예열수조 사이에 연결된 배관은 상기 히트펌프의 응축기를 통과하면서 배관내의 물이 예열되도록 되어 있는 것을 특징으로 하고, 상기 냉각수조의 배관은 냉각수조의 냉각수가 히트펌프를 통하여 냉각수조로 순환하도록 펌프가 설치되고, 상기 예열수조의 배관은 예열수조의 예열수가 히트펌프를 통하여 예열수조로 순환하도록 펌프가 설치된 것을 특징으로 한다. Further, in the present invention, the pipe connected between the heat pump and the cooling water tank is configured to cool the water in the pipe while passing through the evaporator of the heat pump, and the pipe connected between the heat pump and the preheating water tank passes through the condenser of the heat pump. The water in the pipe is to be preheated while the pipe of the cooling tank is installed so that the cooling water in the cooling water tank circulates through the heat pump to the cooling water tank, the pipe of the preheating tank is the preheating water of the preheating tank It is characterized in that the pump is installed to circulate through the preheating tank.
상기와 같은 본 발명에 따르면, 냉각수조(20)에서 데워진 물을 냉동기(40)를 통하여 순환하는 과정에서는 증발기에서 흡수된 열에너지를 응축기에서 외부 대기로 방출하지 아니하고 이 열에너지를 저온살균 과정에 다시 이용할 수 있어 저온살균 냉각기의 열효율을 현저히 개선하고, 에너지를 절감하며, 에너지 비용을 대폭 줄이는 경제적인 효과가 있다. According to the present invention as described above, in the process of circulating the water warmed in the cooling water tank 20 through the freezer 40, the heat energy absorbed by the evaporator is not discharged from the condenser to the outside atmosphere and used again in the pasteurization process. This can significantly improve the thermal efficiency of pasteurization chillers, save energy, and significantly reduce energy costs.
도 1은 종래기술에 의한 증기 가열 방식의 저온살균 냉각기의 개요도이다.1 is a schematic diagram of a pasteurization cooler of a steam heating method according to the prior art.
도 2는 본 발명에 의한 고효율 저온살균 냉각기의 개요도이다.2 is a schematic diagram of a high efficiency pasteurization cooler according to the present invention.
◎ 부호의 설명 ◎◎ Explanation of the sign ◎
1 : 제품 1: product
3 : 증기분사 파이프 3: steam injection pipe
4 : 냉각수 공급 파이프 4: cooling water supply pipe
4': 냉각수 배출 파이프 4 ': coolant discharge pipe
5 : 예열수 공급 파이프 5: preheating water supply pipe
5': 예열수 배출 파이프5 ': preheated water discharge pipe
6, 7 : 펌프 6, 7: pump
10 : 가열수조10: heating water tank
20 : 냉각수조 20: cooling water tank
30 : 증기 보일러30: steam boiler
40 : 냉동기 40: freezer
50 : 예열수조50: preheating tank
60 : 히트펌프 60: heat pump
12, 22, 52 : 컨베이어 벨트12, 22, 52: Conveyor Belt
이하 본 발명의 구체적인 일 실시예를 첨부된 도면을 참조하면서 상세히 설명한다. 도 2는 본 발명에 의한 고효율 저온살균 냉각기의 개요도이다. Hereinafter, with reference to the accompanying drawings a specific embodiment of the present invention will be described in detail. 2 is a schematic diagram of a high efficiency pasteurization cooler according to the present invention.
도 2에 나타난 바와 같이 본 발명의 고효율 저온살균 냉각기는 살균의 대상이 되는 제품(1)을 예열시키기 위한 예열 수조(50)가 추가되어 있다. 그리고 이 예열수조(50)에 인접하여 예열된 제품(1)을 가열 멸균시키기 위한 가열 수조(10)와, 가열수조에서 멸균 처리된 제품(1)을 냉각시키기 위한 냉각수조(20)가 설치되어 있다. 저온 살균의 대상이 되는 제품(1)은 우유, 주스, 맥주, 달걀 등에 모두 적용 가능하며 이에 한정되지 아니하고 저온살균법(Pasteurization)의 적용 대상이면 모두 가능하다.As shown in FIG. 2, the high-efficiency pasteurization cooler of the present invention has a preheating tank 50 for preheating the product 1 to be sterilized. And a heating water tank 10 for heat sterilizing the product (1) preheated adjacent to the preheating tank 50, and a cooling water tank 20 for cooling the product 1 sterilized in the heating water tank is provided have. The product (1) subject to pasteurization is applicable to milk, juice, beer, eggs and the like, but is not limited thereto, and may be all subject to the application of pasteurization.
상기 냉각수조(20)의 외부에는 냉동기(40) 대신 히트펌프(60)가 설치되며, 이 히트펌프(60)는 상기 냉각수조(20) 및 예열수조(50)와 배관으로 연결되어 냉각수조(20)의 냉각수를 냉각 순환시키고, 또한 예열수조(50)의 예열수를 예열 순환시키도록 구성된다. 도 1에 점선으로 둘러싸인 부분은 종래기술과 대비하여 볼 때 본 발명에서 새로이 추가한 부분들을 예시적으로 보여주고 있다. The heat pump 60 is installed on the outside of the cooling water tank 20 instead of the freezer 40, and the heat pump 60 is connected to the cooling water tank 20 and the preheating water tank 50 by piping to the cooling water tank ( The cooling water of 20) is circulated by cooling, and the preheating water of the preheating tank 50 is preheated. The portion enclosed by a dotted line in FIG. 1 exemplarily shows newly added portions in the present invention as compared with the prior art.
이하 본 발명의 고효율 저온살균 냉각기의 상세 구성 및 작동 방법을 더 상세히 살펴본다. Hereinafter, a detailed configuration and operation method of the high efficiency pasteurization cooler of the present invention will be described in detail.
우선 저온살균의 대상이 되는 식품(1)은 살균을 위한 가열수조(10)로 투입되기 전에 먼저 예열수조(50)로 투입된다. 예열수조(50)에는 물이 가득 채워져 있으며, 그 상단부로는 상기 식품(1)이 자동적으로 연속하여 이동할 수 있도록 컨베이어 벨트(52)가 설치되어 있다. 상기 예열수조(50)의 하부에는 예열수 공급 파이프(5)와 예열수 배출 파이프(5')가 물 속에 잠기는 형태로 예열수조(50)의 바닥 면에서 약간 돌출되도록 설치되어 있다. First, the food 1, which is the target of pasteurization, is first introduced into the preheating tank 50 before being introduced into the heating bath 10 for sterilization. The preheating tank 50 is filled with water, and an upper end thereof is provided with a conveyor belt 52 so that the food 1 can continuously and continuously move. A lower portion of the preheating tank 50 is installed to slightly protrude from the bottom surface of the preheating tank 50 in a form in which the preheating water supply pipe 5 and the preheating water discharge pipe 5 'are submerged in water.
상기 예열수 공급 파이프(5)와 예열수 배출 파이프(5')는 히트펌프(60)와 함께 배관 연결되어 있다. 예열 수조(50)로 공급되는 예열수는 히트펌프(60)를 통하여 데워져서 예열수조(50)로 순환토록 되어 있다. 상기 히트펌프(60)와 예열수조(50) 사이에 연결된 배관은 상기 히트펌프(60)의 응축기를 통과하면서 배관내의 물이 예열되도록 구성되어 있다. 즉 히트펌프(60)의 증발기에서 흡수된 열은 압축기에서 60~70℃로 압축되어 예열 수조(50) 쪽으로 보내져 예열수조(50) 속의 예열수의 온도를 50~60℃로 올려준다The preheated water supply pipe 5 and the preheated water discharge pipe 5 'are piped together with the heat pump 60. The preheated water supplied to the preheating tank 50 is warmed through the heat pump 60 and circulated to the preheating tank 50. The pipe connected between the heat pump 60 and the preheating tank 50 is configured to preheat water while passing through the condenser of the heat pump 60. That is, the heat absorbed by the evaporator of the heat pump 60 is compressed to 60 ~ 70 ℃ in the compressor is sent to the preheating tank 50 to raise the temperature of the preheating water in the preheating tank 50 to 50 ~ 60 ℃
이렇게 예열된 예열수는 예열수 공급 파이프(5)를 통하여 예열수조(50)으로 공급되고, 예열 기능을 다하고 약 45℃로 식은 물은 예열수 배출 파이프(5')를 통하여 다시 회귀하여 펌프(7)의 가압을 받아 히트펌프(60)로 유입되어 다시 데워져 예열수조(50) 쪽으로 이동하는 순환과정을 반복한다. The preheated water thus preheated is supplied to the preheating tank 50 through the preheating water supply pipe 5, and the water cooled to about 45 ° C. after the preheating function is returned to the preheating water discharge pipe 5 ′ and pumped again. Receives the pressure of 7) is introduced into the heat pump 60 is heated again to repeat the circulation process to move toward the preheating tank (50).
예열수조(50)로 투입된 식품(1)은 컨베이어 벨트(52)를 타고 물 속에서 이동되면서 가열된 약 50℃ 의 예열수에 의하여 예열된다. 예열시간은 식품의 종류, 두께 등에 의하여 변동 가능하며, 이는 컨베이어 벨트(52)의 이동시간을 늘이거나 줄임으로써 조정 가능하다.The food 1 introduced into the preheating tank 50 is preheated by the preheated water of about 50 ° C. heated while moving in the water on the conveyor belt 52. The preheating time can be varied by the kind, thickness, etc. of the food, which can be adjusted by increasing or decreasing the moving time of the conveyor belt 52.
식품(1)이 가열수조(10)에 도착되면서부터 살균과정이 시작된다. 증기 보일러(30)를 작동시키면, 증기 보일러(30)는 물탱크에 내장된 물을 끓여서 증기를 발생시키고 이를 가열한다. 증기 보일러에서 가열된 증기는 가열수조(10) 내부의 물 속에 돌출되어 있는 증기분사 파이프(3) 상단의 증기 분사구를 통하여 물 속에서 분사되면서 가열수조(10) 내부의 물(가열수)을 가열하게 된다. 가열수의 온도는 80℃ 이상이 되도록 관리된다. The sterilization process starts when the food 1 arrives at the heating water tank 10. When the steam boiler 30 is operated, the steam boiler 30 generates steam by boiling water contained in the water tank and heats it. The steam heated in the steam boiler is injected into the water through the steam injection port on the top of the steam injection pipe (3) protruding into the water in the heating water tank 10, heating the water (heating water) inside the heating water tank (10). Done. The temperature of the heating water is managed to be 80 ° C or higher.
가열수조(10)로 투입된 식품(1)은 컨베이어 벨트(2)를 타고 가열수 속에서 이동되면서 가열된 80℃ 이상의 가열수에 의하여 저온 살균된다. 가열시간은 식품의 종류, 두께 등에 의하여 변동 가능하며, 이는 컨베이어 벨트(2)의 이동시간을 늘이거나 줄임으로써 조정 가능하다.The food 1 injected into the heating water tank 10 is pasteurized by heated water of 80 ° C. or higher heated while moving in the heating water on the conveyor belt 2. The heating time can vary depending on the type, thickness, etc. of the food, which can be adjusted by increasing or decreasing the moving time of the conveyor belt 2.
가열수조(10)에서의 살균 과정을 마친 식품(1)은 냉각수조(20)로 옮겨진다. 냉각수조(20)에도 물이 가득 채워져 있으며, 그 상단부로는 상기 식품(1)이 자동적으로 연속하여 이동할 수 있도록 컨베이어 벨트(22)가 설치되어 있다. 상기 냉각수조(20)의 하부에는 냉각수 공급 파이프(4)와 냉각수 배출 파이프(4')가 물 속에 잠기는 형태로 냉각수조(20)의 바닥 면에서 약간 돌출하도록 설치되어 있다. The food 1 that has been sterilized in the heating water tank 10 is transferred to the cooling water tank 20. The cooling water tank 20 is also filled with water, and the conveyor belt 22 is installed at the upper end thereof so that the food 1 can continuously and continuously move. The lower portion of the cooling water tank 20 is installed so that the cooling water supply pipe 4 and the cooling water discharge pipe 4 'are slightly protruded from the bottom surface of the cooling water tank 20 so as to be submerged in water.
상기 냉각수 공급 파이프(4)와 냉각수 배출 파이프(4')는 히트펌프(60)와 배관으로 연결되어 있다. 냉각수조(20)로 공급되는 냉각수는 히트펌프(60)를 통하여 냉각되어 냉각수조(20)로 순환토록 되어 있다.The cooling water supply pipe 4 and the cooling water discharge pipe 4 'are connected to the heat pump 60 by piping. The cooling water supplied to the cooling water tank 20 is cooled through the heat pump 60 and circulated to the cooling water tank 20.
히트펌프(60)를 작동시키면, 상기 히트펌프(60)의 증발기를 통과하면서 냉매가 열을 흡수하여 열 교환이 이루어져 배관내의 물이 약 10℃로 냉각되고, 이렇게 냉각된 물은 히트펌프(60)와 냉각수조 사이에 연결된 배관을 거쳐 냉각수조(20) 내부의 물 속에 돌출되어 있는 냉각수 공급 파이프(4)를 통하여 냉각수조(20) 내부로 유입된다. 냉각수의 온도는 약15℃가 되도록 관리된다..When the heat pump 60 is operated, the refrigerant absorbs heat while passing through the evaporator of the heat pump 60 to exchange heat, thereby cooling the water in the pipe to about 10 ° C., and cooling the water to the heat pump 60. ) Is introduced into the cooling water tank 20 through the cooling water supply pipe 4 protruding into the water inside the cooling water tank 20 via a pipe connected between the cooling water tank and the cooling water tank. The temperature of the cooling water is controlled to be about 15 ° C.
냉각수조(20)로 투입된 저온살균 과정에서 가열된 식품(1)은 컨베이어 벨트(22)를 타고 물 속에서 이동되면서 냉각된다. 냉각시간은 식품의 종류, 두께 등에 의하여 변동 가능하며, 이는 컨베이어 벨트(22)의 이동시간을 늘이거나 줄임으로써 조정 가능하다. 냉각수조(20)에서 냉각기능을 다하고 약 20℃로 데워진 물은 냉각수 배출 파이프(4')를 통하여 냉각수조(20) 하부로 내려가고, 이렇게 배출된 물은 펌프(6)의 가압을 받아 다시 히트펌프(60)를 통과한다. 히트펌프(60)의 증발기를 통과하면서 냉각된 물은 다시 냉각수조(20)로 보내어져 순환하는 과정을 반복하게 된다.The food 1 heated in the pasteurization process introduced into the cooling water tank 20 is cooled while moving in the water on the conveyor belt 22. The cooling time can be varied depending on the type, thickness, etc. of the food, which can be adjusted by increasing or decreasing the moving time of the conveyor belt 22. The water that has been cooled in the cooling water tank 20 and warmed to about 20 ° C. is lowered to the lower portion of the cooling water tank 20 through the cooling water discharge pipe 4 ′, and the discharged water is again pressurized by the pump 6. Passes through the heat pump (60). The water cooled while passing through the evaporator of the heat pump 60 is sent back to the cooling water tank 20 to repeat the circulating process.

Claims (3)

  1. 제품을 예열시키기 위하여, 히트펌프를 통하여 데워진 예열수를 공급받는 예열수 공급 파이프(5)와 예열수 배출 파이프(5')가 물속에 잠기도록 바닥면에서 돌출되어 구비된 예열 수조와;A preheating tank protruding from the bottom surface of the preheating water supply pipe 5 and the preheating water discharge pipe 5 'receiving the preheated water warmed through the heat pump so as to preheat the product;
    상기 예열수조에서 예열된 제품을 가열 멸균시키기 위하여, 증기보일러에서 가열된 증기를 물속에서 분사하여 가열수의 온도가 80℃ 이상이 되도록 가열하는 증기분사 파이프(3)가 물속에 잠기도록 바닥면에서 돌출되어 구비된 가열 수조와;In order to heat sterilize the preheated product in the preheating tank, a steam injection pipe 3 for spraying the steam heated in the steam boiler in the water to be heated to a temperature of 80 ° C. or more is submerged in the bottom surface. A heating bath protruded and provided;
    상기 가열수조에서 멸균 처리된 제품을 냉각시키기 위하여, 히트펌프에서 냉각된 냉각수를 공급받는 냉각수 공급 파이프(4)와 냉각수 배출 파이프(4')가 물속에 잠기는 형태로 바닥면에서 돌출되어 구비된 냉각수조와;In order to cool the sterilized product in the heating bath, the cooling water supply pipe 4 and the cooling water discharge pipe 4 'receiving the cooling water cooled by the heat pump are protruded from the bottom in the form of submerging the water. Joe;
    상기 냉각수조 및 예열수조와 배관으로 연결되어 냉각수조의 냉각수를 냉각 순환시키고, 예열수조의 예열수를 예열 순환시키도록 된 히트펌프와;A heat pump connected to the cooling water tank and the preheating water tank for cooling and circulating the cooling water of the cooling water tank, and preheating and circulating the preheating water of the preheating water tank;
    상기 예열수조, 가열수조, 냉각수조에는 제품을 이송하고, 가열시간 조정을 가능토록 하기 위한 컨베이어 벨트로 구성되는 것을 특징으로 하는 고효율 저온살균 냉각기High efficiency pasteurization cooler, characterized in that consisting of a conveyor belt for conveying the product to the preheating tank, heating water tank, cooling water tank and to enable adjustment of the heating time
  2. 제1항에 있어서,The method of claim 1,
    상기 히트펌프와 냉각수조 사이에 연결된 배관은 상기 히트펌프의 증발기를 통과하면서 배관내의 물이 냉각되도록 되어 있고, 상기 히트펌프와 예열수조 사이에 연결된 배관은 상기 히트펌프의 응축기를 통과하면서 배관내의 물이 예열되도록 되어 있는 것을 특징으로 하는 고효율 저온살균 냉각기The pipe connected between the heat pump and the cooling water tank is configured to cool the water in the pipe while passing through the evaporator of the heat pump, and the pipe connected between the heat pump and the preheating water tank passes through the condenser of the heat pump. High efficiency pasteurization chiller characterized in that the preheating
  3. 제2항에 있어서,The method of claim 2,
    상기 냉각수조의 배관은 냉각수조의 냉각수가 히트펌프를 통하여 냉각수조로 순환하도록 펌프가 설치되고, 상기 예열수조의 배관은 예열수조의 예열수가 히트펌프를 통하여 예열수조로 순환하도록 펌프가 설치된 것을 특징으로 하는 고효율 저온살균 냉각기The pipe of the cooling tank is a pump is installed so that the cooling water of the cooling tank is circulated to the cooling water tank through the heat pump, the pipe of the preheating tank is a high efficiency, characterized in that the pump is installed so that the preheating water of the preheating tank circulates to the preheating tank through the heat pump Pasteurization cooler
PCT/KR2011/004921 2010-07-08 2011-07-06 High-efficiency pasteurizing cooler WO2012005502A2 (en)

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KR1020100065909A KR101026779B1 (en) 2010-07-08 2010-07-08 A high efficiency pasteurization and cooling equipment
KR10-2010-0065909 2010-07-08

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CN103754427A (en) * 2013-11-14 2014-04-30 成都市翻鑫家科技有限公司 Bottled food pasteurization machine
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