JP3810036B2 - An energy-saving system that recovers and uses factory waste heat at a carbonated beverage manufacturing plant that contains beer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an energy saving system that recovers and uses factory waste heat in a carbonated beverage manufacturing factory containing beer.
[0002]
[Prior art]
For the production of carbonated beverages such as carbonated water, club soda, cider, cola, fruit soda, cream soda, etc., generically named those in which carbon dioxide gas is injected into potable water and sweeteners and flavorings added thereto In order to maintain the quality of the drinking water at a constant level and prevent foaming when filling the container, it is performed stably and continuously. A cooling step is provided for cooling the raw water from about 25 ° C. to about 5 ° C. via a cooling unit .
Further, the product in which the carbon dioxide gas is injected and dissolved is filled in a container. However, since the product temperature is a low temperature of 7 to 8 ° C., the container surface may condense, and the packaging container such as cardboard may be damaged. In order to prevent the packing container from being damaged, a heating process is provided in which the temperature of the container filled with the product is raised to about 30 ° C. with warm water or steam through a heater.
[0003]
Moreover, at the time of beer manufacture, the aged beer which is the young beer which provided the cooling process and finished ripening is cooled to 0-1 degreeC with a cooling part , protein is solidified, this is filtered with a filter, and a clarity is improved. It is raised to form products as beer. These are stuffed into barrels to make draft beer, or filled into containers and brewed to make canned beer.
In the case of the above-mentioned stuffed and canned beer, the beer itself is kept at a low temperature to keep the carbon dioxide gas until it is filled after storage. Therefore, a heating step is provided, and the temperature is raised above the dew point temperature by a hot water shower or the like through a heater.
[0004]
Conventionally, since the cooling step and the heating step in the production of the carbonated beverage containing beer were considered to be completely separated, the cooling step is performed with a brine cooler or a chiller, and the heating step is performed with steam, Therefore, the energy loss caused is large.
[0005]
By the way, in order to eliminate the energy loss, it is necessary to effectively perform exhaust heat recovery. Conventional exhaust heat recovery is performed in a cooling process that forms a consistent system. For example, a waste heat recovery cooling system for wort is widely known as an exhaust heat recovery cooling method.
In the above exhaust heat recovery cooling method, cooling to about 90-72 ° C. is performed in the former cooling system, cooling to 72-33 ° C. in the middle stage is performed with cooling water, and about 6 ° C. in the early stage of fermentation in the latter cooling system. It has cooled to. The pre-cooling at 90 to 72 ° C. recovers exhaust heat by an absorption refrigerator through a first stage heat exchanger, and converts a 15 ° C. brine obtained by the recovered exhaust heat to −5 ° C. through a turbo refrigerator. Brine is formed and wort at about 6 ° C. at the initial stage of fermentation is obtained through the third and fourth stage heat exchangers.
In addition, heat recovery is performed with cooling water used for middle stage cooling, and effective use is made as hot water for subsequent charging and for sterilization washing of the apparatus.
[0006]
Japanese Patent Publication No. 7-4212 discloses a heat utilization method in a beer production process in which steam generated from a boiler is used as a heat source in various processes for producing beer, and particularly a heat source necessary for various processes. A heat utilization method is described in which steam, hot water, and cold water are produced using steam generated from a boiler to effectively use heat energy. In other words, for a beer production line in which a large amount of steam, cold water, and hot water is used, beer malt grinding → saccharification → filtration → wort boiling → wort cooling → wort filtration → wort. An effective usage method is described.
[0007]
The heat utilization method relates to a method for producing steam, hot water, and cold water, which are heat necessary for production, in one production process from steam. However, it balances the heat balance during cooling-to-heating or heat-to-cooling heat transfer in a consistent system and is not intended to recover exhaust heat.
For this reason, there are cases where the exhaust heat at a usable level is still discarded due to difficulties in recovering the exhaust heat.
[0008]
[Problems to be solved by the invention]
The present invention has been made in view of the above-mentioned problems.It is divided into production stages having a combination of cooling and heating, and balances the energy balance at each stage to improve the energy efficiency. The purpose is to provide an energy-saving system that recovers and uses factory waste heat at beverage manufacturing plants.
[0009]
Therefore, in the production of carbonated beverages containing beer, which has been neglected and overlooked so far, the cooling process of maintaining raw product water at 0 to 1 ° C., and about 30 ° C. for preventing condensation after bottling or canning In the production stage having a heating process for raising the temperature, the heat transfer between the cooling and heating processes is related to balance the energy balance between them.
[0010]
By the way, in the manufacturing process of carbonated beverages, first, drinking water and sugar are mixed to make a sugar solution, and then acid raw materials and flavoring are added to form raw product water that is a mixed sugar solution. When carbon dioxide gas is injected into the formed raw product water to form a product, a cooling process for maintaining the raw product water at about 1 to 3 ° C. is necessary. When packaging, a heating step of heating the container filled with the raw product water to about 30 ° C. is necessary to prevent condensation on the surface of the container. Therefore, the period from the cooling process to the heating process is handled as one production stage.
[0011]
In the beer production process, the aging beer, which is the raw water of the product, is cooled and maintained at 0 to 1 ° C. until filtration of the coagulated protein of the aged beer and the filling of the container after the filtration, and the filling of the koji after filling the container The heating process of heating the canned product to about 30 ° C. is handled as one production stage.
[0012]
[Means for Solving the Problems]
Therefore, an energy-saving system that recovers and uses factory exhaust heat in a carbonated beverage-containing factory that contains beer of the present invention,
It has a cooling process that cools raw product water at the time of production of carbonated beverages containing beer with cold brine, and a heating process that heats up to dew point temperature with high-temperature water that is performed after filling the container of the product, and is used for the cooling process The gist of the cold brine to be recovered is the energy saving system that collects and uses the factory waste heat of the carbonated beverage manufacturing factory constituted by the cold heat obtained through the cooling section that is operated by the exhaust heat in the heating process .
[0013]
And invention of Claim 1 is a heating part which heats the high temperature water used for the said heating process,
A cooling unit for cooling the cold brine in the cooling step is provided side by side,
The heating unit is composed of a heat pump cycle that drives the factory exhaust heat as a heat source, uses the condensation heat on the condenser side to produce high-temperature water,
On the other hand, the cooling unit is configured by a heat pump cycle that is driven by using the exhaust heat of the heating process as a heat source, and is configured to be cooled by cold brine using the evaporative cold heat on the evaporator side .
[0014]
For example , the factory exhaust heat in the cooling process according to claim 1 is exhaust heat (steam) during boiling of wort in the beer manufacturing process .
[0015]
[0016]
Further, the invention described in claim 3 is an adsorption or absorption refrigerator having a heat source side for removing heat from the heated waste water from the heating step and a cooling side for cooling the cold brine in the cooling step, and the heat source side. A cooling tower that cools the discharged heat removal water is installed side by side, and heating wastewater from the heating process is introduced as heat source water to the heat source side of the refrigerator, and the heat removal water deprived on the heat source side is cooled. Cold brine water introduced to the cooling side of the refrigerator through the tower and further cooled is introduced into the cooling step .
[0017]
The invention according to claim 1 is configured such that the heating unit is configured by a compression heat pump. In the case of a carbonated beverage, the heating unit is operated by factory exhaust heat in another process, and in the case of beer, the wort is boiled. It operates with boiling exhaust heat steam at the time, and in addition, 85-90 ° C. high temperature water can be obtained by addition of exhaust heat energy possessed by factory exhaust heat.
The invention according to claim 1 is configured such that the cooling unit according to claim 1 is configured by a compression heat pump that uses cold brine as a medium, and the compression heat pump is configured by exhaust heat in the heating step. The cold brine is operated to obtain cold brine from the evaporation section, and cooling cold heat is obtained from the cold brine. In this case, a brine heat storage tank is provided, and beer can be maintained at a low temperature before freezing following an intermittent load by automatic cooling capacity control by detecting the brine temperature via a three-way mixing valve.
[0018]
[Action]
An energy-saving system that recovers and uses factory waste heat in a beer and carbonated beverage manufacturing plant according to the present invention,
The heat balance in the production stage that combines the cooling process of cooling the raw product water with cold brine during the production of carbonated beverages containing beer and the heating process of heating to dew point temperature with high-temperature water after filling the container of the product It ’s a balance,
In the present invention, the heating energy of the high-temperature water used in the heating step is constituted by a heat pump cycle that is driven using factory exhaust heat ( for example, exhaust heat steam at the time of boiling wort in the beer manufacturing process ) as a heat source, and the condenser Configured to produce hot water using the heat of condensation on the side ,
The cooling energy used in the cooling process of cooling the raw product water with cold brine is constituted by the cooling energy obtained through the cooling section that is activated by the exhaust heat in the heating process, that is, the movement of the heat in the heating process to the cooling part. Therefore, the balance of heat balance between the cooling process and the heating process can be achieved.
[0019]
Moreover, the cooling step, when identified in the cooling step performed during carbon dioxide injection of carbonated beverages, the cooling step is pressing the carbon dioxide in the mixed sugar solution plus flavoring in mixed sugar solution obtained by mixing water and sugar When dissolving, in order to prevent quality stability and bubbling stably and continuously, the product raw water temperature is cooled below 10 ° C before freezing, the product outlet temperature is maintained at 1 to 3 ° C, and irregularly intermittent Although the thing which can control cooling capacity is requested | required to respond | correspond to the said raw | natural water supplied , according to this invention, it can respond.
[0020]
Also the cooling process, when identified in the cooling process to be performed on beer matured beer from prefiltration, the cooling process, in order to calm the precipitate and the carbon dioxide gas of coagulum beer aged in storage step In the process to be performed, a brine of around −5 ° C. is sent to cool the beer to near the freezing point and a cooling capacity controllable is required, but the present invention can cope with this.
In addition, the cooling uses -6 to -4 ° C brine for cooling the wort performed after the wort preparation step, and uses -5 to -3 ° C brine in the fermentation process and the storage process. In each case, the wort and the young beer are cooled to about 0 ° C.
[0021]
[0022]
The invention of claim 3, wherein the said cooling section, in which was configured from the absorption or adsorption chiller, using the thermal discharge heating step as a heat source water, cooled ablative heat the hot water after use It is cooled through a tower and introduced into the cooling side of an adsorption refrigerator to obtain low-temperature cold water. In this case, the cooling capacity is adjusted through a cooling tower.
[0023]
[0024]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are merely illustrative examples and not intended to limit the scope of the present invention unless otherwise specified. Absent.
FIG. 1 is a diagram showing a schematic configuration when an energy-saving system that recovers and uses factory exhaust heat in a carbonated beverage manufacturing factory containing beer according to the present invention is applied to the carbonated beverage manufacturing factory, and FIG. 2 shows the beer according to the present invention. a diagram showing a schematic structure in the case of applying the energy-saving system for a factory exhaust heat to a recovery interest in beer production plant in carbonate含飲fees manufacturing plant comprising, 3 1, another embodiment of the cooling unit of FIG. 2 It is a figure which shows an example.
[0025]
As shown in FIG. 1, the energy saving system of the present invention includes a cooling process 10a for product raw water, a carbonation process 11a for injecting carbon dioxide gas into the cooled raw water, and a cooling raw water into which carbon dioxide gas has been injected. In the final production stage consisting of a carbonated beverage bottling or canning process 12, a heating process 13 after bottling or canning, and a packaging process 14, high-temperature water obtained by introducing factory waste heat is output to the heating process 13. The heating part 15a and the cooling part 20a which outputs the cold brine obtained by introduce | transducing the heating waste_water | drain from the heating process 13 to the cooling process 10a are comprised.
[0026]
Is the heating portion 15a becomes more and compression heat pump 19a and the heat exchanger 18a to become more a compressor 16a and the condenser 17a, and more condensed compressed to the condenser 17a by the compressor 16a factory exhaust heat (steam) further the hot water so as to obtain hot water through the heat exchanger 18a are to obtain hot water used for heating process of heating the factory exhaust heat.
In the above case, the power cost for driving the compressor is required, but a heating steam or heat source for obtaining high-temperature water is unnecessary.
[0027]
The above cooling unit 20a becomes more and compression heat pump 23a and the heat exchanger 24a to become more a compressor 21a and the evaporator 22a, compresses the exhaust heat in the heating step 13 in the compressor 21a evaporation Hatsuki 22a in the cooling step and cold brine heat exchanger output to 10a are the mixed sugar solution to be cooled to a low temperature before freezing in the heat exchanger 24a to obtain a cooled cold Bly down to -1 to 1 ° C..
In addition, a heat storage tank (not shown) is provided in the cold brine circulation path 25a, and the cold brine is automatically bypassed when the supply of the mixed sugar solution is stopped due to a load change through a three-way mixing valve (not shown). To prevent freezing of the mixed sugar solution.
In the above case, the power cost for driving the compressor is required, but a refrigerator for obtaining cold brine is unnecessary.
[0028]
FIG. 2 shows a schematic configuration when the energy saving system for recovering and using the factory exhaust heat in the carbonated beverage manufacturing factory containing beer of the present invention is applied to the beer manufacturing factory. In this case, the energy saving system is as follows. As shown in the figure, in the final production stage consisting of the cooling process 10b for the aged beer, the filtration process 11b, the stuffing or canning process 12, the heating process 13 and the packaging process 14, the exhaust heat steam at the boiling of wort is A heating unit 15b that outputs the high-temperature water obtained by introduction to the heating step 13 and a cooling unit 20b that outputs the cold brine obtained by introducing the exhaust heat from the heating step 13 to the cooling step 10b are configured. .
[0029]
Is the heating unit 15b becomes more and compression heat pump 19b and the heat exchanger 18b consisting of a condenser 17b and the compressor 16b, compressed to the compression of the preceding waste heat steam during wort boiling cooling step by the compressor 16b Steam is condensed in the condenser 17b to obtain hot water, and the warm water is heated by the factory exhaust heat such as exhaust heat steam at the time of boiling wort through the heat exchanger 18b, and high temperature water used for the heating process is obtained. To get.
In the above case, the power cost for driving the compressor is required, but a heating steam or heat source for obtaining high-temperature water is unnecessary.
[0030]
The cooling unit 20b includes a compression heat pump 23b including a compressor 21b and an evaporator 22b, and a heat exchanger 24b. The cooling unit 20b introduces the exhaust heat in the heating process 13 into the compressor 21b, and the evaporation latent heat of the evaporator 22b. A cold brine of −1 to 1 ° C. is obtained by heat exchange, and the aged beer, which is the raw product water, is cooled and maintained at a low temperature before freezing in the heat exchanger 24b.
In addition, a heat storage tank (not shown) is provided in the cold brine circulation path 25b, and the cold brine is automatically bypassed when the load changes and the supply of the aged beer is stopped via a three-way mixing valve (not shown). The aging beer is prevented from freezing.
In the above case, the power cost for driving the compressor is required, but a refrigerator for obtaining cold brine is unnecessary.
[0031]
FIG. 3 is a diagram showing another embodiment of the cooling unit of FIGS. 1 and 2, in which case the cooling unit uses an adsorption refrigeration machine 30 as shown in the figure, and the heat source side of the refrigeration unit The heated waste water of the heating step 13 is introduced as heat source water, and the deprived heat water deprived by the introduction is introduced to the cooling side of the adsorption refrigeration machine 30 through the cooling tower 31 to further cool the cold brine water. It is used in the cooling steps 10a and 10b.
In addition to the above, an absorption refrigerator may be used, and high-temperature waste water may be introduced to the regenerator side of the refrigerator, and cold water may be obtained from the evaporator side.
[0032]
【The invention's effect】
With the above configuration, an energy saving system can be constructed by balancing the balance of thermal energy through heat transfer by a heat pump at each stage divided into production stages having a cooling process and a heating process.
[Brief description of the drawings]
FIG. 1 is a diagram showing a schematic configuration when an energy-saving system that recovers and uses factory waste heat in a carbonated beverage manufacturing factory containing beer according to the present invention is applied to a carbonated drink manufacturing factory.
FIG. 2 is a diagram showing a schematic configuration when an energy-saving system for recovering factory exhaust heat in a carbonated beverage manufacturing factory containing beer according to the present invention is applied to a beer manufacturing factory.
FIG. 3 is a diagram showing another embodiment of the cooling unit of FIGS. 1 and 2;
[Explanation of symbols]
10a, 10b Cooling step 11a Carbonation step 11b Filtration step 12 Bottling step 13 Heating step 14 Packaging step 15a, 15b Heating unit 16a, 16b Compressor 17a, 17b Condenser 18a, 18b, 24a, 24b Heat exchanger 19a, 19b, 23a, 23b Compression heat pump 20a, 20b Cooling unit 21a, 21b Compressor 22a, 22b Evaporator 25a, 25b Cold brine circulation path 30 Adsorption refrigeration machine 31 Cooling tower

Claims (3)

It has a cooling process that cools raw product water at the time of production of carbonated beverages containing beer with cold brine, and a heating process that heats up to dew point temperature with high-temperature water that is performed after filling the container of the product, and is used for the cooling process The cold brine is an energy-saving system that collects and uses the factory waste heat of the carbonated beverage manufacturing factory configured by the cold heat obtained through the cooling section that is operated by the exhaust heat in the heating process,
A heating unit for heating the high-temperature water used in the heating step;
A cooling unit for cooling the cold brine in the cooling step is provided side by side,
The heating unit is composed of a heat pump cycle that drives the factory exhaust heat as a heat source, uses the condensation heat on the condenser side to produce high-temperature water,
On the other hand, the cooling unit is configured by a heat pump cycle that is driven by using the exhaust heat of the heating process as a heat source, and is configured to be cooled by cold brine using the evaporative cold heat on the evaporator side. An energy-saving system that recovers and uses factory waste heat from beverage-containing manufacturing plants. The factory exhaust heat, energy saving system for recovering use of plant waste heat in carbonate含飲fees manufacturing plant including a beer according to claim 1, wherein the exhaust heat during wort boiling in the beer production process. It has a cooling process that cools raw product water at the time of production of carbonated beverages containing beer with cold brine, and a heating process that heats up to dew point temperature with high-temperature water that is performed after filling the container of the product, and is used for the cooling process The cold brine is an energy-saving system that collects and uses the factory waste heat of the carbonated beverage manufacturing factory configured by the cold heat obtained through the cooling section that is operated by the exhaust heat in the heating process,
A heating unit for heating the high-temperature water used in the heating step;
A cooling unit for cooling the cold brine in the cooling step is provided side by side,
The heating unit is composed of a heat pump cycle that drives the factory exhaust heat as a heat source, uses the condensation heat on the condenser side to produce high-temperature water,
On the other hand, the cooling unit has an adsorption type or absorption type refrigerator having a heat source side for depriving the heated waste water from the heating step and a cooling side for cooling the cold brine in the cooling step, and the deprived heat discharged from the heat source side. Consists of a cooling tower that cools the water,
Heated wastewater from the heating process was introduced as heat source water to the heat source side of the refrigerator, and the deprived water removed from the heat source side was introduced to the cooling side of the refrigerator through a cooling tower and further cooled. An energy-saving system that recovers and uses factory waste heat in a carbonated beverage manufacturing factory that contains beer that has been introduced with cold brine water into the cooling process .

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