JPH11130195A - Energy-saving system for recycling waste heat at manufacturing factory of carbonated beverage including beer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an energy-saving system to recycle the waste heat from a manufacturing factory of a carbonated beverage including beer which is divided into production stages having the cooling process and the heating process, performs the energy balance in each stage, and improves the energy efficiency. SOLUTION: An energy-saving system comprises a heater 15a to output hot water obtained by introducing the waste heat from a factory to a heating process 13 and a cooler 20a to output the cold brine to a cooling process 10a by introducing the waste heat from the heating process 13 in a final production stage comprising the cooling process 10a, a carbonation process 11a to pressure- feed gaseous carbon dioxide into cooled raw water, a bottling (or canning) process 12, the heating process 13 after the bottling or canning, and a packaging process 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an energy saving system for recovering and utilizing factory waste heat in a factory for producing carbonated beverages containing beer.

[0002]

2. Description of the Related Art Carbonated water is generally referred to as a product obtained by injecting carbon dioxide gas into drinkable water and a product obtained by adding a sweetener and flavoring thereto, and carbonic acid such as club soda, cider, cola, fruit soda and cream soda. In the manufacture of beverages, carbonation is performed as a product by injecting carbon dioxide gas into the raw water of the product.At that time, the quality of the drinking water is kept constant, and foaming at the time of filling the container is prevented and stable. In order to perform the process continuously, a cooling step of cooling the raw water from about 25 ° C. to about 5 ° C. through a cooler is provided. In addition, the product in which the carbon dioxide gas is injected and dissolved is filled into a container. However, since the product temperature is as low as 7 to 8 ° C., the surface of the container may be condensed and the packing container such as a cardboard may be damaged. In order to prevent the above-mentioned packing container from being damaged, the container filled with the product is heated with hot water or steam through a heater.
A heating step of raising the temperature to around 0 ° C. is provided.

[0003] During the production of beer, an aged beer which has been matured by providing a cooling step is cooled to 0 to -1 ° C by a cooler to coagulate protein, and this is filtered by a filter. The clarity is enhanced to form a beer product. This is then barreled to make draft beer, or filled into containers to be bottled and canned beer. In the case of the above bottled and canned beer, the beer itself is kept at a low temperature to keep carbon dioxide gas after storage and until filling is completed, so the surface of the container at the time of filling will be below the dew point as it is, and it will be difficult to stick labels due to condensation Therefore, a heating step is provided, and the temperature is raised to the dew point or higher by a hot water shower or the like via a heater.

Conventionally, the cooling step and the heating step in the production of carbonated beverages containing beer have been considered completely separate from each other. Therefore, the cooling step is performed by a brewer or a chiller, and the heating step is performed by steam. As a result, the energy loss caused was large.

In order to eliminate the above energy loss, it is necessary to effectively recover exhaust heat. Conventional waste heat recovery is performed in a cooling step for forming a consistent system, and for example, a wort waste heat recovery cooling method is widely known as a waste heat recovery cooling method. In the exhaust heat recovery cooling method, cooling to about 90 to 72 ° C. is performed in the cooling system in the preceding stage, and
Cooling to 33 ° C. is carried out with cooling water, and is cooled to about 6 ° C. in the initial stage of fermentation by a cooling system at a later stage. 90-72 ° C
In the pre-stage cooling, exhaust heat is recovered by an absorption refrigerator through a first-stage heat exchanger, and 15 ° C. brine obtained by the recovered exhaust heat is formed into -5 ° C. brine through a turbo refrigerator. The wort at about 6 ° C. in the initial stage of fermentation is obtained via the third and fourth heat exchangers. In addition, heat recovery is performed by using cooling water used for middle-stage cooling, and effective utilization is made as subsequent hot water for preparation and for sterilization and cleaning of the apparatus.

Japanese Patent Publication No. 7-4212 discloses a method of utilizing heat in a beer production process in which steam generated from a boiler is used as a heat source in various processes for producing beer. A heat utilization method is described in which steam, hot water, and cold water, which are necessary heat sources, are created by using steam generated from a boiler to effectively use heat energy. That is, a large amount of steam, cold water, hot water is used for the beer production line of `` beer malt grinding → saccharification → filtration → wort boiling → wort cooling → wort filtration → wort '' An effective use method is described.

The above-mentioned heat utilization method relates to a method of producing heat in three forms, steam, hot water, and cold water, which are necessary for production in one production process. However, it balances the heat balance between cooling and heating or heat transfer from heating to cooling in a consistent system, and does not attempt to recover waste heat from that point. For this reason, there is a case where the recovery of the exhaust heat is still difficult and the available level of the exhaust heat is also discarded.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has an object to divide into production stages having a combination of cooling and heating, to balance the energy balance at each stage, and to improve energy efficiency. The purpose of the present invention is to provide an energy-saving system that recovers and uses factory exhaust heat in a carbonated beverage manufacturing plant including beer.

Therefore, in the production of carbonated beverages including beer, which has been neglected and overlooked so far, a cooling step for maintaining raw water at 0 to 1 ° C., and a step for preventing dew condensation after bottling or canning. In a production stage having a heating step of raising the temperature to about ° C., the movement of heat during the cooling and heating steps is related to balance the energy balance therebetween.

In the process of producing a carbonated beverage, drinking water and sugar are first mixed to form a sugar solution, and an acidulant and flavoring are added thereto to form a raw water mixture, which is a mixed sugar solution. . When a product is formed by injecting carbon dioxide into the formed raw water, the raw water is 1 to 3 times.
A cooling step is required to maintain the temperature at about 30 ° C., and when the product is bottled or canned and packed, the container filled with the raw water is kept at approximately 30 ° C. to prevent dew condensation on the container surface.
It requires a heating step of heating to a degree. Therefore, the process from the cooling process to the heating process is handled as one production stage.

In the beer production process, a cooling step of cooling the aged beer, which is a raw water of the product, to 0 to 1 ° C. before filtering the coagulated protein of the aged beer and filling the container after the filtration; And a heating step of heating the bottled or canned product to about 30 ° C. as one production stage.

[0012]

SUMMARY OF THE INVENTION Therefore, the energy saving system of the present invention for recovering and utilizing factory exhaust heat in a carbonated beverage manufacturing plant containing beer according to the present invention comprises a cooling step of raw water for producing a carbonated beverage containing beer. In the heating step of heating to the dew point temperature performed after filling the product container,
The heating energy used in the heating step is constituted by heat energy obtained by adding other exhaust heat to the heat obtained by a heater operating as a heat source by taking heat taken from raw water during the cooling step,
The cooling energy used in the cooling step is constituted by cold energy obtained through a cooler operated by exhaust heat in the heating step.

[0013] The cooling step according to claim 1 is performed at the time of injecting carbon dioxide gas into the carbonated beverage.

Further, the cooling step according to the first aspect is characterized in that the cooling step is performed on the aged beer before beer filtration.

Further, the heater according to the first aspect is constituted by a compression heat pump.

Further, the cooler according to the present invention is characterized in that the cooler is constituted by an absorption refrigerator.

Further, the cooler according to the present invention is characterized in that it is constituted by a compression heat pump using cold brine as a refrigerant.

[0018]

According to the present invention, an energy saving system for recovering and utilizing factory exhaust heat in a beer and carbonated beverage manufacturing plant according to the present invention comprises a cooling process of raw water for producing carbonated beverages including beer, and a dew point temperature after filling a product container. The heating energy used in the heating process is balanced by a heating process in which the heating process is combined with a heating process of heating up to a heating process operating as a heat source. The obtained heat is transferred to a heat energy heating section that is obtained by adding waste heat from other factories, and the cold energy used for the cooling process is generated by a cooler that is obtained through a cooler that operates by the exhaust heat in the heating process. In other words, since the heat is transferred to the cooling portion in the heating step, the heat balance between the cooling step and the heating step can be balanced.

Further, the invention according to claim 2 specifies the cooling step according to claim 1 as a cooling step performed when carbon dioxide gas is injected into a carbonated beverage, wherein the cooling step includes mixing water and sugar. When carbon dioxide gas is injected and dissolved into a mixed sugar solution obtained by adding flavoring to the mixed sugar solution, the product raw water temperature is cooled to 10 ° C. or lower before freezing in order to stably and continuously perform quality stabilization and foaming prevention. It is required that the product outlet temperature be maintained at 1 to 3 ° C. and that the cooling capacity be controllable in order to cope with the raw water that is intermittently supplied.

Further, the invention according to claim 3 specifies the cooling step according to claim 1 as a cooling step performed on the aged beer before beer filtration.
This is a process performed to reduce coagulation and sedimentation of carbon dioxide in the aged beer during the storage process. It sends brine around -5 ° C and cools the beer to near the freezing point. Is required. In addition, the said cooling uses the brine of -6 to -4 degreeC for the cooling of the wort performed after a wort preparation process, and uses -5 to -3 degreeC brine in a fermentation process and a liquor storage process. Then, each of the wort and the young beer is cooled at about 0 ° C.

According to a fourth aspect of the present invention, the heater according to the first aspect is constituted by a compression heat pump. In the case of a carbonated beverage, the heater operates by factory exhaust heat in another process, In addition, in the case of beer, it is operated by the boiling waste heat at the time of boiling the wort.
It is intended to obtain high-temperature water of ° C.

According to a fifth aspect of the present invention, the cooler according to the first aspect of the present invention is constituted by an absorption refrigerator with an absorption refrigerator, and uses warm waste water in a heating step as heat source water. The used deprived hot water is cooled via a cooling tower and introduced into the cooling side of the adsorption refrigerator to obtain low-temperature cold water. In this case, the cooling capacity is adjusted through a cooling tower.

According to a sixth aspect of the present invention, the cooler according to the first aspect is constituted by a compression heat pump using a cold brine as a medium, and the compressor is compressed by exhaust heat in the heating step. By operating the heat pump, cold brine is obtained from the evaporating section, and cooling heat for cooling is obtained from the cold brine. In this case, a brine heat storage tank is provided, and the beer can be maintained at a low temperature just before freezing following an intermittent load by automatic cooling capacity control by detecting a brine temperature via a three-way mixing valve.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to an embodiment shown in the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not merely intended to limit the scope of the present invention, but are merely illustrative examples unless otherwise specified. Absent. FIG.
FIG. 1 is a diagram showing a schematic configuration when an energy saving system for recovering and utilizing factory exhaust heat in a carbonated beverage manufacturing plant including beer of the present invention is applied to a carbonated beverage manufacturing plant, and FIG. 2 includes the beer of the present invention. FIG. 3 is a diagram showing a schematic configuration in a case where an energy saving system for recovering and utilizing factory exhaust heat in a carbonated beverage manufacturing plant is applied to a beer manufacturing plant. FIG. 3 shows another embodiment of the cooler shown in FIGS. FIG.

As shown in FIG. 1, the energy saving system of the present invention comprises a cooling step 10a, a carbonation step 11a for injecting carbon dioxide into raw cooling water, a bottling (or canning) step 12, and a bottling or canning process. In the final production stage consisting of the heating step 13 and the packaging step 14, the high-temperature water obtained by introducing the waste heat from the factory is
3 and a cooler 20a that outputs the cold brine obtained by introducing the heating wastewater from the heating step 13 to the cooling step 10a.

The heater 15a comprises a compression heat pump 19a comprising a compressor 16a and a condenser 17a and a heat exchanger 18a, and the factory waste heat is introduced into the compressor 16a to obtain hot water from the condenser 17a. And heat exchanger 18
A high-temperature water used in a heating step heated by factory exhaust heat is obtained through a. In the above case, the power cost for driving the compressor is required, but the heating steam or heat source for obtaining high-temperature water is unnecessary.

The cooler 20a comprises a compression heat pump 23a comprising a compressor 21a and an evaporator 22a, and a heat exchanger 24a.
a and cooled from the evaporator 22a to cool brine (-1 to 1 ° C)
And the mixed sugar solution is cooled to a low temperature before freezing by the heat exchanger 24a. In addition, the circulation path 25a of the cold brine
A heat storage tank (not shown) is provided, and when the load fluctuates via a three-way mixing valve (not shown) and the supply of the mixed sugar solution is stopped, the cold brine is automatically bypassed to freeze the mixed sugar solution. I try to prevent it. In the above case, a power cost for driving the compressor is required, but a refrigerator for obtaining the cold brine is unnecessary.

FIG. 2 shows a schematic configuration in a case where an energy saving system for recovering and utilizing factory exhaust heat in a carbonated beverage manufacturing plant containing beer of the present invention is applied to a beer manufacturing plant. As shown in the figure, the energy-saving system includes a cooling process 10b for aged beer, a filtering process 11b, a bottling (including canning) process 12, a heating process 13 and a packaging process 14 in a final production stage. The high-temperature water obtained by introducing
And a cooler 20b that outputs the cold brine obtained by introducing the exhaust heat from the heating step 13 to the cooling step 10b.

The heater 15b comprises a compression heat pump 19b comprising a compressor 16b and a condenser 17b and a heat exchanger 1
8b, the waste heat at the time of boiling the wort before the cooling step or the waste heat at the time of cooling the boiled wort is introduced into the compressor 16b to obtain warm water from the condenser 17b, and further to the heat exchanger 18
Through b, it is heated by factory exhaust heat to obtain high-temperature water used in the heating step. In the above case, the power cost for driving the compressor is required, but the heating steam or heat source for obtaining high-temperature water is unnecessary.

The cooler 20b comprises a compression heat pump 23b comprising a compressor 21b and an evaporator 22b, and a heat exchanger 24b.
b, and cooled by the evaporator 22b.
° C) and aged beer, which is raw water of the product, is kept at a low temperature before freezing by the heat exchanger 24b. In addition,
A heat storage tank (not shown) is provided in the circulation path 25b of the cold brine, and when the load fluctuates via a three-way mixing valve (not shown) and the supply of the aged beer is stopped, the cold brine is automatically bypassed, and the aging is performed. The beer is prevented from freezing. In the above case, a power cost for driving the compressor is required, but a refrigerator for obtaining the cold brine is unnecessary.

FIG. 3 is a view showing another embodiment of the cooler shown in FIGS. 1 and 2. In this case, as shown in the drawing, an adsorption type refrigerator 30 is used, and the heat source side of the refrigerator is used. The cooling water obtained by introducing the heated wastewater of the heating step 13 as heat source water to the cooling side through the cooling tower 31 through the cooling tower 31 is used in the cooling steps 10a and 10b. It was made. In addition, an absorption refrigerator may be used, and high-temperature wastewater may be introduced into the regenerator side of the refrigerator to obtain cold water from the evaporator.

[0032]

According to the above configuration, an energy-saving system can be constructed by dividing into production stages having a cooling process and a heating process and in each stage balancing the balance of heat energy through transfer of heat by a heat pump.

[Brief description of the drawings]

FIG. 1 is a diagram showing a schematic configuration when an energy saving system for recovering and utilizing factory exhaust heat in a carbonated beverage manufacturing plant including beer of the present invention is applied to a carbonated beverage manufacturing plant.

FIG. 2 is a diagram showing a schematic configuration in a case where an energy saving system for recovering and utilizing factory exhaust heat of a carbonated beverage manufacturing plant containing beer of the present invention is applied to a beer manufacturing plant.

FIG. 3 is a view showing another embodiment of the cooler 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 Heater 16a, 16b Compressor 17a, 17b Condenser 18a, 18b, 24a, 24b Heat exchanger 19a, 19b, 23a, 23b Compression type heat pump 20a, 20b Cooler 21a, 21b Compressor 22a, 22b Evaporator 25a, 25b Cold brine circulation path 30 Adsorption type refrigerator 31 Cooling tower

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masami Obama 2-13-1, Botan Koto-ku, Tokyo Inside Maekawa Works Co., Ltd. (72) Inventor Fujio Komatsu 2- 13-1 Botan Koto-ku, Tokyo Stock (72) Inventor Yoshifumi Kawabata 2-13-1, Botan, Koto-ku, Tokyo Inside Maekawa Corporation

Claims (6)

[Claims] The heating energy used in the heating step is as follows: a cooling step for heating the raw water of the product at the time of producing a carbonated beverage containing beer and a heating step for heating to a dew point temperature after filling the container with the product. In this case, the heat obtained from the heater operating from the heat taken from the raw water as a heat source is composed of heat energy obtained by adding other exhaust heat to the heat obtained.
The cooling energy used in the cooling process is constituted by the cold heat obtained through a cooler operated by the exhaust heat in the heating process. Energy saving system. 2. The energy-saving system according to claim 1, wherein the cooling step is performed at the time of injecting carbon dioxide into the carbonated beverage. 3. The energy-saving system according to claim 1, wherein the cooling step is performed on the aged beer before beer filtration. 4. The energy saving system according to claim 1, wherein the heater is constituted by a compression heat pump. 5. The energy-saving system according to claim 1, wherein the cooler is configured by an absorption refrigerator. 6. The energy-saving system according to claim 1, wherein the cooler comprises a compression heat pump using cold brine as a medium.