JP2015157252A - Mixture producing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mixture producing apparatus comprising a mixing part that can simplify the constitution to facilitate cleaning and effectively mix a mixture stock with a heated liquid.SOLUTION: A powder milk formulator (10A) produces milk by mixing powder milk (MP) with a heated liquid (L) in a milk formulating part (50A). The milk formulating part (50A) comprises a milk formulating container (51) into which the powder milk (MP) is cast, an inlet (52) that discharges the heated liquid (L) along the inner wall face of the milk formulating container (51), an exhaust port (53) that discharges milk mixed inside the milk formulating container (51), and a separator 55 provided at the center inside the milk formulating container (51).

Description

  The present invention relates to a mixture generating apparatus that generates a liquid mixture by mixing a mixture raw material and a heated liquid in a mixing section. More specifically, the present invention relates to a structure of a mixing unit for efficiently mixing a mixture raw material and a heated liquid.

  In recent years, WHO (World Health Organization) and FAO (Food and Agriculture Organization of the United Nations) "Guidelines on Safe Formulation, Storage and Handling of Dry Powdered Milk for Infants" Was co-created.

  According to this guideline, dry powdered milk for infants, that is, infant formula, has been reported to be associated with severe illness and death of infants due to infection with Enterobacter Sakazaki, etc. In addition, as a preventive measure against the above infection, in order to prepare a dry powdered milk to be given to infants, after preparing using a liquid boiled to 70 ° C. or higher, the beverage is heated to about 40 ° C. It is stated that it needs to be cooled to

  As an apparatus for preparing milk for infants using such hot water cooling, for example, a milk preparation apparatus disclosed in Patent Document 1 is known. In this milk preparation apparatus 100, as shown in FIG. 10, it sterilizes by heating the milk preparation water with the heater 102 installed in the water storage tank 101 which stores the milk preparation water. Then, by adjusting the supply flow rate of the hot milk preparation water by the Coriolis mass flow meter 103, automatic milk adjustment can be performed in-line.

  Further, as an apparatus for stirring and mixing a dry powder raw material and water or hot water or the like and adjusting a beverage, for example, mixing bowls described in Patent Document 2 and Patent Document 3 are known.

  As shown in FIG. 11, the mixing bowl 200 disclosed in Patent Document 2 includes a bowl body 201, a lid 210, and a stirring mechanism 202 that stirs and mixes the dry powder raw material and the liquid. The lid 210 is provided with a raw material inlet 211 for introducing a powder raw material into the bowl body 201, a liquid supply port 212 for introducing hot water, and a steam exhaust port 213 for exhausting steam.

  A groove 212a connected to the liquid supply port 212 is formed on the outer periphery of the lid portion 210, and the groove 212a and the bowl body 201 are fitted to form a liquid passage 212b.

  Further, in the mixing bowl 300 disclosed in Patent Document 3, a guide plate 312 is provided at a position facing the liquid port 311 for introduction into the bowl body 301 as shown in FIG. A step 320 is provided at the upper end. Then, by forming a curved guide curve 321 and guide slope 322 in the stepped portion 320, the introduced liquid is transferred from the guide curve 321 of the stepped portion 320 through the guide slope 322 to the upper end of the bowl body 301. It flows down along the inner wall. Thus, the dry powder raw material in the bowl body 301 is washed away with a small amount of hot water.

JP 2007-252427 A (released on October 4, 2007) Japanese Patent Application Laid-Open No. 08-101967 (released on April 16, 1996) JP 2004-201863 A (released July 22, 2004)

  However, the conventional mixture generating apparatus has the following problems.

  First, in the milk preparation apparatus 100 disclosed in Patent Document 1, it is possible to automatically produce milk with water sterilized by boiling. However, the mixing of powdered milk with heated hot water and the configuration of the mixing part are not described in detail.

  Moreover, in the mixing method of the raw material for mixtures and the heated liquid currently disclosed by patent document 2 and patent document 3, adjustment of powder juice etc. which can be melt | dissolved simply by a powder raw material and a liquid contacting. Suitable for doing. However, when the raw material for the mixture is, for example, powdered milk, when the powdered milk simply touches the liquid, a film derived from the protein is formed on the surface of the powdered milk, resulting in a large amount of undissolved residue. For this reason, it is necessary to always vigorously agitate when mixing powdered milk and liquid. Moreover, in order to suppress generation | occurrence | production of the miscellaneous bacteria in a milk preparation part, it is necessary to make it easy to wash | clean as many components as possible. In this respect, in the mixing bowls 200 and 300 disclosed in Patent Document 2 and Patent Document 3, the structure of the mixing unit is complicated, and it cannot be said that cleaning is easy.

  The present invention has been made in view of the above-described conventional problems, and its purpose is to simplify the configuration so that cleaning is easy, and to efficiently mix the raw material for the mixture and the heated liquid. It is providing the mixture production | generation apparatus provided with the mixing part.

  In order to solve the above-described problem, the mixture generation apparatus according to one aspect of the present invention is a mixture generation apparatus that generates a liquid mixture by mixing a mixture raw material and a heated liquid in a mixing unit. Discharges the liquid mixture mixed inside the mixing container into which the raw material for the mixture is charged, an inlet for discharging the heated liquid along the inner wall surface of the mixing container And a central projecting body provided at a central portion inside the mixing container.

  Advantageous Effects of Invention According to one aspect of the present invention, there is provided an effect of providing a mixture generating device that includes a mixing unit that can be easily cleaned and that can efficiently mix a mixture raw material and a heated liquid. Play.

(A) is a top view which shows the structure of the milk preparation part as a mixing part in the powdered milk preparation apparatus as a mixture production | generation apparatus in Embodiment 1 of this invention, (b) is the structure of the said milk preparation part. It is a longitudinal cross-sectional view shown. It is a block diagram which shows the structure of the said powdered milk preparation apparatus. It is a perspective view which shows the structure of the said powdered milk preparation apparatus. It is a disassembled perspective view which shows the structure of the 2nd heat exchanger provided in the said powdered milk preparation apparatus. It is a perspective view which fractures | ruptures and shows a part of structure of the 2nd heat exchanger provided in the said powdered milk preparation apparatus. It is a flowchart which shows the operation | movement flow and usage method of the said powdered milk preparation apparatus. (A) is a top view which shows the structure of the milk preparation part as a mixing part in the powdered milk preparation apparatus as a mixture production | generation apparatus in Embodiment 2 of this invention, (b) is the structure of the said milk preparation part. It is a longitudinal cross-sectional view shown. (A) is a top view which shows the structure of the milk preparation part as a mixing part in the powdered milk preparation apparatus as a mixture production | generation apparatus in Embodiment 3 of this invention, (b) is the structure of the said milk preparation part. It is a longitudinal cross-sectional view shown. (A) is a top view which shows the structure of the milk preparation part as a mixing part in the powdered milk preparation apparatus as a mixture production | generation apparatus in Embodiment 4 of this invention, (b) is the structure of the said milk preparation part. It is a longitudinal cross-sectional view shown. It is a block diagram which shows the structure of the conventional milk adjustment apparatus. It is sectional drawing which shows the structure of the mixing bowl as another conventional mixing part. It is sectional drawing which shows the structure of the mixing bowl as another conventional mixing part.

[Embodiment 1]
An embodiment of the present invention will be described below with reference to FIGS.

(Configuration of powdered milk preparation device)
The configuration of, for example, a powdered milk preparation device as the mixture generation device of the present embodiment will be described with reference to FIGS. 2 and 3. FIG. 2 is a block diagram showing the configuration of the powdered milk preparation device 10A of the present embodiment. FIG. 3 is a perspective view showing the configuration of the powdered milk preparation device 10A of the present embodiment.

  As shown in FIGS. 2 and 3, a powdered milk preparation device 10 </ b> A as a mixture generation device of the present embodiment is configured to supply a liquid tank 1 that stores liquid and a liquid L stored in the liquid tank 1. A first heat exchanger 3 for preheating the supplied liquid L and cooling the liquid from the outlet of the heater 4, and the first heat exchanger; Heater 4 as a liquid heating unit for boiling and sterilizing liquid L preliminarily heated in 3, powder dried milk as a raw material for a mixture of liquid sterilized by boiling and cooled in first heat exchanger 3 In other words, the milk preparation unit 50A as a mixing unit for adjusting and mixing the milk powder to an appropriate amount and generating the milk M as a liquid mixture, and the temperature at which the milk M generated in the milk preparation unit 50A is arbitrarily set No. to adjust The heat exchanger 60, the milk receiving portion 7 for storing the milk M flowing out from the second heat exchanger 60, and the cooling water for cooling the milk M passing through the second heat exchanger 60. A cooling water tank 8 for cooling, a cooling water pipe 12 for supplying cooling water into the second heat exchanger 60 and the cooling water pump 9, and the liquid pump 2 so that the temperature of the milk M becomes a set value. And a control unit 20 for adjusting the output of the cooling water pump 9.

  The liquid tank 1 can be poured with a liquid L for milk adjustment such as tap water or carbonated water. Inside the liquid tank 1, a water level sensor (not shown) for sensing the water level of the liquid L poured into the liquid tank 1 and a temperature sensor for sensing the water temperature are provided. For this reason, the water level, temperature, etc. of the liquid L poured into the liquid tank 1 can be sensed.

  As the water level sensor, various types of sensors having different measurement principles and usage methods can be used. That is, the water level sensor includes, for example, an electrode type, a magnetic type, and a hydraulic type, but any type of sensor may be used as long as the water level in the liquid tank 1 can be detected. However, from the viewpoint of hygiene, it is preferable to select a liquid L type that can be detected without contact. In this embodiment, for example, a magnetic water level sensor that can be measured in a non-contact manner is used.

  Similarly, as long as the temperature sensor can sense the water temperature in the liquid tank 1, any type having a different principle and usage may be used. However, what can be detected without contact with the liquid L is preferable.

  In addition, the liquid tank 1 is provided with, for example, a filter made of activated carbon or an ion exchange membrane (not shown) to remove impurities, chlorine, bacteria, bacteria, ionic metals, and other components in the poured liquid L. It is good also as a structure. Furthermore, it is preferable that the liquid L is supplied to the heater 4 and heated immediately after the liquid L is poured into the liquid tank 1. Moreover, in order to store the liquid L for a long time, it is good also as a structure which installs sterilization means, such as an ultraviolet irradiation device, for example in the upper part of the liquid tank 1, and irradiates the stored liquid L with an ultraviolet-ray and can sterilize. Further, for example, the liquid L may be supplied by directly connecting the liquid tank 1 and an external water tap or the like.

  The liquid supply pipe 11 and the cooling water pipe 12 are flow paths through which the liquid L stored in the liquid tank 1 and the cooling water tank 8 passes. As the material for the liquid supply pipe 11 and the cooling water pipe 12, for example, pipes such as metal pipes such as SUS and silicon or Teflon (registered trademark) resin pipes can be used. Preferably, it is desirable to select, for example, a silicon-based member suitable for supply for food use. In the present embodiment, a silicon tube having an inner diameter of φ3 mm is used as the liquid supply conduit 11, and for example, connection with each part such as the liquid tank 1 and the liquid pump 2 is performed using a fixing tool such as a hose clip. Yes. The size of the material and inner diameter of the tube can be arbitrarily set. Moreover, the connection with each part can select the arbitrary fixing methods suitable for the size etc. of the tube.

  As the liquid pump 2 and the cooling water pump 9, for example, a solenoid type or diaphragm type pump can be used. In the present embodiment, for example, a solenoid pump having a maximum pressure of 0.8 MPa and a maximum flow rate of 800 cc / min is used. The adaptive pressure and applicable flow rate of the pump are preferably selected according to the configuration and specifications of the powdered milk preparation device 10A.

  The first heat exchanger 3 increases the temperature of the liquid L for milk production, reduces the load required by the heater 4, and decreases the temperature of the boiled hot liquid L that has flowed out of the heater 4. it can. In particular, when the boiled high-temperature liquid L is poured directly into the milk preparation unit 50A, nutritional components such as vitamins may be destroyed. For this reason, in the powdered milk preparation device 10A of the present embodiment, the liquid L close to 100 ° C. is the minimum preparation temperature in accordance with “Guidelines for safe preparation, storage and handling of dry powdered milk for infants” 70 The temperature is lowered to ° C. Thereby, it is set as the structure which reduces destruction of vitamins as much as possible. As the first heat exchanger 3, for example, an aluminum counter-current or co-current liquid-liquid heat exchanger can be used. In the present embodiment, for example, an aluminum counter-current liquid-liquid heat exchanger with relatively high heat exchange efficiency is used. In this case, the material, internal shape, configuration, and the like of the first heat exchanger 3 may be arbitrarily selected.

  The heater 4 heats the liquid L for milk production to boil and sterilizes it. The heater 4 may be any shape or structure. For example, a coil-type heater, a sheet heater, a silicon heater, or the like may be used as long as the liquid L supplied to the heater unit can be heated for a predetermined time to be boiled and sterilized. Further, the heater 4 of the present embodiment is provided with a temperature sensor (not shown) so that the heating temperature of the heater 4 can always be measured.

  The milk preparation unit 50A adjusts the milk M by mixing the dry powdered milk that is set in advance, that is, the powdered milk MP and the boiled liquid L for producing milk. In milk preparation unit 50A of the present embodiment, a dry powdered milk installation unit for holding dry powdered milk is provided below the housing. For this reason, milk powder MP of the quantity set in order to produce milk M in the dry powder milk installation part is installed arbitrarily. An inlet 52 to be described later for supplying a liquid L for generating milk M is provided on the side of the milk preparation unit 50A. For this reason, the liquid L supplied from the inflow port 52 is discharged toward the milk powder MP. The discharged liquid L is dissolved while being gradually mixed by contact with the powdered milk MP, and milk M is generated. The detailed structure of the milk adjustment unit 50A will be described later.

  The piping connection between the milk preparation unit 50A and the first heat exchanger 3 has a structure that can be easily removed, such as a one-touch connector. For this reason, the inside of the powdered milk preparation device 10A can be easily cleaned and sterilized, for example, by immersion in a sodium hypochlorite solution.

  Further, a contact switch (not shown) is provided on the outer wall surface of the milk preparation unit 50A. For this reason, when the removed milk preparation part 50A is not set correctly, the circuit of the attachment part is disconnected.

  The milk receiver 7 is a place where a container for storing the produced milk M such as a baby bottle is installed. The milk receiving portion 7 has a structure in which a mesh-structured lid is attached above a saucer-like container, and for example, spilled milk M can be drained.

  The cooling water tank 8 is used to store the cooling water CW for heat exchange for adjusting the temperature of the milk M adjusted in the milk preparation unit 50A to an arbitrary temperature in the second heat exchanger 60. . As the cooling water CW stored in the inside, for example, tap water or commercially available coolant liquid can be used, and it is preferable to use a liquid having a large specific heat as much as possible. Inside the cooling water tank 8, similarly to the liquid tank 1, a water level sensor (not shown) for sensing the liquid water level and a temperature sensor for sensing the water temperature are provided. For this reason, the water level, temperature, etc. of the liquid poured into the cooling water tank 8 can be sensed.

  The second heat exchanger 60 adjusts the temperature of the milk M set arbitrarily by performing heat exchange between the milk M adjusted by the milk preparation unit 50A and the cooling water CW. As the second heat exchanger 60, a liquid-liquid heat exchanger similar to the first heat exchanger 3 can be used. The mixture adjusted by the milk preparation unit 50A is allowed to flow into one of the flow paths of the second heat exchanger 60 as a high-temperature fluid.

  The second heat exchanger 60 is connected to the cooling water tank 8 and the cooling water pump 9 via the cooling water pipe 12. For this reason, the cooling water CW stored in the cooling water tank 8 is sent to the second heat exchanger 60 by the cooling water pump 9 and passes through the flow path inside the second heat exchanger 60. Heat exchange takes place. Therefore, the second heat exchanger 60 of the present embodiment has a circulation cycle structure in which the cooling water CW after heat exchange is returned to the cooling water tank 8.

  In the present embodiment, a liquid-liquid heat exchanger similar to the first heat exchanger 3 is used for the second heat exchanger 60. In addition, the connection between the second heat exchanger 60, the milk conditioning unit 50A, and the cooling water conduit 12 has a structure that can be easily removed, such as a one-touch connector, as in the milk conditioning unit 50A. For this reason, the inside of the powdered milk preparation device 10A can be easily cleaned and sterilized, for example, by immersion in a sodium hypochlorite solution. Further, the second heat exchanger 60 is provided with a contact switch (not shown) on the outer wall surface as in the case of the milk preparation unit 50A, and the removed second heat exchanger 60 is not set correctly. Will break the circuit.

  Here, since the second heat exchanger 60 performs milk heat exchange, cleaning, disinfection, and state confirmation are easy.

  Therefore, the second heat exchanger 60 of the present embodiment has the following configuration. The configuration of the second heat exchanger 60 of the present embodiment will be described in detail based on FIG. 3, FIG. 4, and FIG. FIG. 4 is an exploded perspective view showing the configuration of the second heat exchanger 60 of the present embodiment. FIG. 5 is a perspective view showing a part of the configuration of the second heat exchanger 60 of the present embodiment in a cutaway manner.

  As shown in FIGS. 3, 4, and 5, the second heat exchanger 60 of the present embodiment includes a flow path forming first member 61 and a flow path as a first flow path forming member having a container shape. A flow path forming third member 63 as a second flow path shape member disposed detachably with respect to the first flow path forming member inside the formed second member 62 and the first flow path forming member. And.

  As for the flow path forming first member 61 and the flow path forming second member 62 as the first flow path forming member, the diameter of the inner wall surface of the container-shaped peripheral wall portion gradually decreases from the upper part toward the lower part. Further, the first flow path 64 through which the cooling water CW flows is formed between the flow path forming first member 61 and the flow path forming second member 62 in the peripheral wall portion.

  Further, between the flow path forming second member 62 that forms the inner wall surface of the first flow path forming member and the flow path forming third member 63 as the second flow path forming member, the cooling water CW and heat A spiral second flow path 65 for flowing the milk M to be replaced is formed. Further, the flow path forming third member 63 is a corrugated member.

  According to this configuration, the flow path forming first member 61 and the flow path forming second member 62 constituting the first flow path forming member are such that the diameter of the inner wall surface of the container-shaped peripheral wall portion gradually increases from the upper part toward the lower part. It is getting smaller. For this reason, by arranging the second flow path-shaped member inside the first flow path forming member, a spiral shape is formed between the inner wall surface of the first flow path forming member and the second flow path forming member. The second flow path 65 can be easily formed. Further, the diameter of the second flow path 65 formed in this way gradually decreases from the upper part (upstream side) to the lower part (downstream side).

  Further, since the second flow path 65 is formed in a spiral shape and has a long flow path length, the heat exchange efficiency between the milk M flowing through the second flow path 65 and the cooling water CW flowing through the first flow path 64 is high. It becomes good. Furthermore, since the flow path forming third member 63 is a corrugated member, the surface area for air cooling is increased, and the cooling efficiency of the milk M is increased.

  Further, since the second flow path shape member is detachably disposed with respect to the first flow path forming member, the second flow path shape member can be removed to clean the second flow path 65, Disinfection and status confirmation can be easily performed.

  As a result, the second heat exchanger 60 of the present embodiment has good heat exchange efficiency, is easy to clean, disinfect, and check the state of the fluid flow path, and is suitable for cooling the milk M. I can say that.

(How to use the powdered milk preparation device)
Next, an operation flow and a usage method in the powdered milk preparation device 10A having the above-described configuration will be described with reference to FIG. FIG. 6 is a flowchart showing an operation flow and usage method of the powdered milk preparation device 10A of the present embodiment.

  First, as a preparatory work, the user of the powdered milk preparation device 10A supplies the liquid L for adjusting the milk M and the cooling water CW into the liquid tank 1 and the cooling water tank 8 shown in FIG. Thereafter, after the dry powdered milk of an amount necessary for adjustment is introduced into the milk preparation unit 50A in advance, the milk preparation unit 50A and the second heat exchanger 60 are attached to the powder milk milk preparation device 10A.

  After this preparatory work is completed, as shown in FIG. 6, first, the power of the powdered milk preparation device 10A is turned on (S1). In this case, the liquid supply to each liquid tank 1 and the cooling water tank 8, the installation of the milk conditioning unit 50A, and the second heat exchanger 60 are in no particular order, and the user may perform any operation.

  When the power of the powdered milk preparation device 10A is turned on, an initial sensing operation is performed (S2). Then, whether or not the initial sensing operation is completed is confirmed before moving to the next step (S4) (S3).

  As an object of the initial sensing operation, there are confirmation of attachment of the milk conditioning unit 50A and the second heat exchanger 60, measurement by a water level sensor and a temperature sensor in the liquid tank 1 and the cooling water tank 8, and the like. The confirmation of attachment of the milk conditioning unit 50A and the second heat exchanger 60 is performed by the contact switch described above, and the circuit is disconnected when the attachment of each part is insufficient. Therefore, it is possible to check the attachment state based on whether or not the circuit is disconnected. If the installation is insufficient, for example, a warning sound such as a buzzer or a warning means such as a blinking lamp is transmitted to the user to request confirmation of the installation or re-installation.

  The initial sensing operation by the water level sensor and the temperature sensor is performed by measuring the water level and the water temperature in each liquid tank 1 and the cooling water tank 8. A reference value is set in advance for the measured values of each water level sensor and temperature sensor, and it is determined whether or not the reference value is exceeded. When the reference value is exceeded, predetermined power is supplied to the heater 4, and the preheating operation, which is step (S5), is performed one after another. When the measured value falls below the reference value, it is transmitted to the user using warning means such as a warning sound such as a buzzer or blinking of a lamp or the like, as in the case of the above-described attachment confirmation. Then, for example, the user is prompted to supply liquid into the tank so that the measured value exceeds the reference value.

  Here, a method for setting the reference values of the water level sensor and the temperature sensor in the liquid tank 1 will be described.

  First, for the reference value of the water level sensor installed in the liquid tank 1, the maximum value of the milk M that can be generated per operation operation when the powdered milk preparation device 10A is operated is used as the reference value. When the maximum value or less is set as the reference value, there is a possibility that the adjustment amount of the milk M is lower than the amount requested by the user. Therefore, it is preferable to set the maximum value that can be adjusted in one operation.

  Next, the reference value of the temperature sensor of the liquid tank 1 will be described.

  "Guidelines for the safe preparation, storage and handling of dry infant formula for infants, jointly developed by WHO (World Health Organization) and FAO (Food and Agriculture Organization of the United Nations) The liquid temperature supplied to the milk preparation unit 50A is defined as 70 ° C. or higher. For this reason, the liquid temperature in the tank of the liquid tank 1 at which the temperature in the milk preparation unit 50A is 70 ° C. or higher is set as the reference value.

  In this embodiment, it is known that the liquid temperature in the tank of the liquid tank 1 may be 15 ° C. or higher so that the temperature in the milk preparation unit 50A is 70 ° C. or higher. Therefore, in this embodiment, the reference value of the temperature sensor is set to 15 ° C., for example.

  Next, a method for setting the reference values of the water level sensor and the temperature sensor of the cooling water tank 8 will be described.

  Since the cooling water CW stored in the cooling water tank 8 is used as cooling water in the second heat exchanger 60, the amount and temperature of the cooling water CW are determined by the heat exchanger characteristics of the second heat exchanger 60. It is desirable to do. Therefore, first, the cooling water CW having a constant temperature is supplied into the cooling water tank 8 and the heat exchange characteristics of the second heat exchanger 60 are measured to determine the supply flow rate of the cooling water CW.

  Next, the temperature increase in the cooling water tank capacity and the cooling water tank 8 after heat exchange is measured at the supply flow rate determined as described above. Thus, the minimum capacity of the cooling water tank 8, that is, the water level sensor position is determined. Finally, after setting the selected supply flow rate and tank capacity, the heat exchanger performance is measured when the cooling water temperature is changed. Based on this result, the reference temperature of the cooling water CW, that is, the reference value of the temperature sensor is determined. still. When performing these evaluations, the temperature of the high-temperature fluid supplied to the second heat exchanger 60 is set to the same temperature as the temperature flowing out from the milk preparation unit 50A.

  In the present embodiment, the heat exchanger outlet temperature is 40 ° C. close to the body temperature and the cooling water temperature rise after heat exchange is small, so the supply flow rate is 300 cc / min, and the water level sensor reference value is 400 cc. Yes. In this case, the cooling water temperature at the time of measurement is 15 ° C.

  In the present embodiment, the cooling water temperature of 10 ° C. at which the high temperature fluid outlet temperature is close to 40 ° C. is set as the reference value of the temperature sensor.

  Next, the cooling water cooling and circulation operation, which is the next step (S4) in the flowchart of FIG. 6, will be described.

  The cooling water CW after heat exchange with the milk M exiting the milk preparation unit 50A rises to about 25 to 35 ° C. In addition, when the production of milk M is repeated continuously, the cooling water temperature further increases. Therefore, in the present embodiment, even if the milk M is continuously generated, the cooling water CW and the cooling water CW are connected via the second heat exchanger 60 in order to prevent the cooling water temperature from rising above a predetermined temperature. Heat exchange with air is performed for an arbitrary time.

  After the milk M is produced, the second heat exchanger 60 is filled with ambient temperature air. For this reason, the cooling water temperature can be lowered by operating the cooling water pump 9 to have a preset flow rate. In that case, the supply flow rate from the cooling water pump 9 can be set arbitrarily. However, in order to increase the heat transfer coefficient during heat exchange and increase the heat exchange efficiency, it is preferable to set the supply flow rate from the cooling water pump 9 as high as possible. The heat exchange time depends on the set value of the upper limit temperature of the cooling water CW. For this reason, it is preferable to measure each cooling water inlet temperature and outlet temperature beforehand using the 2nd heat exchanger 60, and to determine heat exchange time from the time until it reaches upper limit temperature.

  Next, the preheating operation (S5) shown in FIG. 6 will be described.

  In the preheating operation, the temperature of the liquid L flowing into the heater 4 is controlled to be a preset temperature set value. In the present embodiment, the temperature set value is set to 50 ° C., for example.

  As a control method, for example, a control method such as ON-OFF control or PID (Proportional Integral Derivative) control can be used, and other control methods may be used. The temperature set value can be arbitrarily set in consideration of the heater performance such as the heating time from the preheating temperature to the temperature at the time of milk M production, the milk M production tact, and the like.

  In the present embodiment, the preheating operation is performed in order to shorten the time from when the user inputs the milk M production conditions until the milk M is actually produced. This is done to save energy when implemented in Therefore, when the above points are not considered, it is not always necessary to perform the preheating operation.

  As shown in FIG. 6, when the preheating operation is completed, the user of the powdered milk preparation device 10A can input the beverage generation condition, that is, the milk M generation condition, and therefore the beverage generation condition is input. It is determined whether or not (S6). The production conditions for the milk M include, for example, the adjustment amount and adjustment temperature of the milk M. In the present embodiment, the adjustment amount can be set from 80 cc to 20 cc, for example. The maximum adjustment amount can be adjusted up to 240 cc, and the adjustment temperature can be set at 40 ± 5 ° C.

  As shown in FIG. 6, when the milk M generation conditions are input, the milk M generation operation is started (S7). The production | generation operation | movement of this milk M is demonstrated concretely.

  First, the cooling water pump 9 starts driving under the above-described cooling water conditions, and the cooling water CW is supplied into the cooling water pipe 12 and the flow path of the second heat exchanger 60. At this time, the flow rate of the supplied cooling water CW varies depending on the adjustment temperature input according to the above-described milk M production conditions. That is, the temperature of the milk M is adjusted by changing the supply flow rate of the cooling water CW.

  Subsequently, in the milk M generating operation (S7), electric power is supplied to the heater 4 and the heating operation is started. The electric power supplied at this time and the temperature of the heater 4 vary depending on the type and shape of the heater 4. Therefore, in the present embodiment, the input power amount and the heater temperature are set so that the supplied liquid L becomes a temperature at which the liquid L can be boiled inside the heater 4 within the liquid residence time in the heater 4. The The liquid residence time of the liquid L in the heater 4 is determined by the flow rate of the liquid L supplied by the liquid pump 2 and the inner diameter of the liquid supply pipe 11. In the present embodiment, specifically, for example, the input power is 1100 W and the heater temperature is 110 ° C.

  When the heater 4 reaches a sufficient temperature, the liquid pump 2 is driven and the supply of the liquid L in the liquid tank 1 is started. The supply flow rate by the liquid pump 2 can be arbitrarily set, and can be determined in consideration of the high temperature side outlet fluid temperature of the first heat exchanger 3 and the production tact of the milk M. In the present embodiment, the production tact of milk M is set to 240 cc / min, for example, as the supply flow rate at which the outlet fluid temperature of the first heat exchanger 3 is 70 ° C. or higher.

  The adjustment amount of the milk M is implemented by adjusting the driving time of the liquid pump 2 such that, for example, when the adjusting amount is 120 cc, the driving time of the liquid pump 2 is 30 seconds. The liquid L supplied from the liquid pump 2 is subjected to heat exchange by the first heat exchanger 3 and is supplied to the heater 4 after the temperature rises to some extent.

  The liquid L supplied into the heater 4 passes through the first heat exchanger 3 as a high-temperature fluid again after being boiled and sterilized.

  The liquid L that has passed through the first heat exchanger 3 is cooled from the boiling temperature to about 70 ° C. and supplied to the milk preparation unit 50A. In the milk preparation unit 50A, the liquid L is mixed with the powdered milk MP and produced as milk M at about 70 ° C. The produced milk M is cooled to an arbitrary temperature in the second heat exchanger 60. The cooled milk M is supplied into a container such as a baby bottle installed in the milk receiving part 7.

  When all of the milk M in the powdered milk preparation device 10A is supplied into the container in the milk receiving part 7, it is transmitted to the user by means of notification to the user, for example by a buzzer or LED lamp, and a mixture is generated. The operation is completed (S8).

  When the production | generation operation | movement of the milk M is completed, input electric power will be reduced so that the heater 4 may become preheating temperature, and the operation | movement of the cooling water pump 9 will stop.

  As a result, by using the powder milk preparation device 10A of the present embodiment, milk M is produced in compliance with “Guidelines for Safe Formulation, Storage and Handling of Dry Powdered Milk for Infants”, And cooling from milk preparation to arbitrary temperature can be performed automatically.

  As described above, in the powdered milk preparation device 10A of the present embodiment, the liquid tank 1 and the liquid pump 2, which are supply means for supplying water as the liquid L for milk preparation, and the temperature of the supplied water are set. It is a temperature sensor of the liquid tank 1 that is a measuring means for measuring, a control unit 20 that is a setting means for setting a supply amount of water for milk preparation, and a heating means for heating the water for milk preparation. Preparation as a mixing unit for mixing the heater 4, the first heat exchanger 3, which is a first adjustment means for adjusting the heated water to the milk preparation temperature, and the dry powdered milk and the heated water. A milk part 50A and a second heat exchanger 60 as a first adjusting means for adjusting the milk M as a liquid mixture flowing out from the milk preparation part 50A to an appropriate temperature are provided.

  For this reason, the water for milk preparation supplied at normal temperature by the heater 4 is boiled and sterilized. Thereafter, the hot water boiled by the heater 4 is adjusted to a temperature of about 70 ° C. by the first heat exchanger 3 and mixed with the dry powdered milk in the milk preparation unit 50A.

  As a result, it is possible to minimize the destruction of nutritional components of the dry powdered milk. Moreover, in the 2nd heat exchanger 60 which adjusts the temperature of the milk M, it cools directly before the milk M flows in into containers, such as a baby bottle. For this reason, the milk M can be efficiently cooled in a short time.

  In addition, since the adjusted milk M is cooled inline using the second heat exchanger 60, mixing of bubbles can be minimized.

  Moreover, the procedure of the mixture production | generation method of this Embodiment is adhering to "Guidelines regarding safe preparation, storage, and handling of dry powdered milk for infants." Furthermore, since all the mixture generation processes are performed in-line, it is possible to adjust milk M having an arbitrary temperature and amount in a short time after supplying water at room temperature.

(Detailed structure of the milk preparation unit)
By the way, in the powdered milk preparation device 10A having the above-described configuration, in order to suppress the generation of various germs in the milk preparation unit 50A, the milk preparation unit 50A can be easily cleaned with as few components as possible. It is necessary to sufficiently mix with the heated liquid L.

  Therefore, the milk conditioning unit 50A of the present embodiment has a structure that satisfies the above-described requirements. Below, the structure of 50 A of milk preparation parts of this Embodiment is demonstrated based on (a) (b) of FIG. (A) of FIG. 1 is a top view which shows the structure of the milk preparation part 50A of the powdered milk preparation apparatus 10A in this Embodiment, (b) of FIG. 1 is a longitudinal cross-section which shows the structure of the said milk preparation part 50A. FIG.

  As shown in FIGS. 1A and 1B, the milk conditioning unit 50A of the present embodiment includes a milk conditioning container 51 as a mixing container into which powdered milk MP as a raw material for a mixture is charged, and a milk conditioning container 51 An inflow port 52 for discharging the heated liquid L along the inner wall surface and an outlet 53 for discharging milk M as a liquid mixture mixed in the milk preparation container 51 are provided.

  The milk conditioning container 51 has a substantially cylindrical shape, a funnel shape, or a combination of both. FIG. 1B shows a milk preparation container 51 having a shape obtained by combining a substantially cylindrical shape and a funnel shape.

  The inlet 52 is provided on the inner wall surface of the milk preparation container 51 and supplies the heated liquid L. The supplied liquid L flows along the inner wall surface of the milk preparation container 51. At this time, the heated liquid L is supplied to the milk preparation unit 50A by the liquid pump 2 shown in FIG. For this reason, the heated liquid L is vigorously discharged from the inflow port 52 along the inner wall surface of the milk preparation container 51 into the milk preparation container 51 into which the milk powder MP has been charged in advance.

  As a result, the introduced liquid L flows along the inner wall surface of the milk preparation container 51 while being mixed with the milk powder MP. Then, the mixed milk M is discharged from the discharge port 53.

  The discharge port 53 is for discharging the milk M adjusted and mixed in the milk preparation container 51 to the outside, and is provided on the bottom surface of the milk preparation container 51 in the present embodiment. The discharge port 53 may have any shape, but is preferably set in consideration of the flow rate of the liquid flowing from the inflow port 52 in order to efficiently perform the adjustment and mixing with the powdered milk MP. In particular, it is preferable to set the inflow speed from the inflow port 52 to be higher than the outflow speed from the discharge port 53 in a range where the liquid L heated from the milk adjustment container 51 does not overflow.

  Further, in the present embodiment, the discharge port 53 has a shape in which, for example, a plurality of 1 mmφ holes are provided. As a result, the discharge rate of the milk M can be adjusted by changing the number of holes in view of the adjustment amount of the milk M and the input amount of the powdered milk MP.

  Here, in the present embodiment, in order to prevent the charged milk powder MP from flowing directly into the discharge port 53, a discharge port cover 54 that covers the upper side of the discharge port 53 is provided above the discharge port 53. Provided. Thereby, suppression of clogging of the hole of the discharge port 53 due to direct flow of the powdered milk MP into the discharge port 53, and suppression of the powdered milk MP which is a raw material of the milk M from flowing out to the outside without being adjusted. it can.

  Further, the outer peripheral surface of the discharge port cover 54 has a slit 54 a as a gap of an arbitrary size, and the adjusted milk M reaches the discharge port 53 through the slit 54 a.

  In the present embodiment, a separator 55 serving as a central projecting body for efficiently distributing and supplying the liquid L flowing along the inner wall surface of the milk preparation container 51 is provided on the upper side of the discharge port cover 54. Yes.

  That is, the vortex flow of the liquid L along the inner wall surface of the milk adjustment container 51 has a high flow velocity in the vicinity of the inner wall surface, but the flow velocity is small in the central portion of the milk adjustment container 51. As a result, the mixing of the powdered milk MP and the liquid L is insufficient at the center of the milk preparation container 51.

  Therefore, in the present embodiment, the separator 55 is provided in the central portion inside the milk conditioning container 51, and the separator 55 occupies the central portion of the milk conditioning container 51. For this reason, there is no portion with a small flow velocity. As a result, the milk powder MP and the liquid L do not come into contact with each other in the central portion where the flow rate is small in the milk preparation container 51, and mixing is performed only in the vicinity of the inner wall surface of the milk preparation container 51 with strong momentum. Thereby, powdered milk MP and the liquid L come to be mixed completely.

  As a result, conventionally, when the powdered milk MP and the heated liquid L are mixed, the surface of the lump of the powdered milk MP sometimes stretches a film and does not melt. However, in the present embodiment, the heated liquid L is vigorously discharged from the inflow port 52 along the inner wall surface of the milk preparation container 51, so that the lump of powdered milk MP is dispersed. For this reason, since the film formation on the surface of the powdered milk MP can be prevented, the milk M can be adjusted without being melted.

  Here, the separator 55 may have any shape, but it is preferable that the separator 55 has a conical shape in which the powdered milk MP can be distributed uniformly around the periphery. In the present embodiment, as shown in FIG. 1B, the separator 55 has a conical shape having a circular bottom surface. Further, the conical shape of the separator 55 is formed such that the angle formed by the circular bottom surface and the bus bar is larger than the falling angle of the milk powder MP. Specifically, the angle formed by the circular bottom surface and the bus bar is set to 45 ° or more. It is more preferable that the angle formed by the circular bottom surface and the bus bar be 60 ° or more.

  Thereby, since the angle which the separator 55 forms with the circular bottom face of a conical shape and a generating line is formed in an angle larger than the fall angle of milk powder MP, when putting milk powder MP into milk preparation container 51, The milk powder MP falling on the slope of the cone falls near the inner wall surface of the milk preparation container 51. As a result, even when powdered milk MP is charged into the milk preparation container 51, the powdered milk MP falls to the vicinity of the inner wall surface of the milk conditioning container 51 along the inclination of the cone bus. In the vicinity of the inner wall surface, the liquid L discharged from the inflow port 52 flows in vigorously, so that the milk powder MP is sufficiently mixed with the liquid L. Accordingly, it is possible to prevent remaining powdered milk MP that is insufficiently mixed.

  The height of the conical separator 55 is preferably set according to the capacity of the milk preparation container 51. For example, in this Embodiment, it is set as 80 ml-200 ml as production amount of one milk M, for example. For this reason, when the capacity of the milk preparation container 51 is about 250 ml, it is preferable that the apex of the conical separator 55 is positioned near the upper end of the milk preparation container 51.

  Further, an uneven shape 55a such as a dimple shape or an emboss shape may be formed on the surface of the separator 55 in order to improve the stirring ability.

  Thus, the powdered milk preparation device 10A in the present embodiment generates milk M by mixing the powdered milk MP and the heated liquid L in the milk preparation unit 50A. The milk preparation unit 50 </ b> A includes a milk preparation container 51 into which the powdered milk MP is charged, an inlet 52 for discharging the liquid L heated along the inner wall surface of the milk preparation container 51, and the milk preparation container 51. A discharge port 53 for discharging the mixed milk M and a separator 55 provided in the center of the inside of the milk preparation container 51 are provided.

  For this reason, the heated liquid L is vigorously discharged from the inflow port 52 along the inner wall surface of the milk preparation container 51 into the milk preparation container 51 into which the milk powder MP has been charged in advance. As a result, the introduced liquid L flows along the inner wall surface of the milk preparation container 51 while being mixed with the powdered milk MP, and the mixed milk M is discharged from the discharge port 53.

  Here, the vortex flow of the liquid along the inner wall surface of the milk adjustment container 51 has a high flow velocity in the vicinity of the inner wall surface, but the flow velocity is small in the central portion of the milk adjustment container 51. As a result, the mixing of the powdered milk MP and the liquid L is insufficient at the center of the milk preparation container 51.

  Therefore, in the present embodiment, a separator 55 provided at the center of the inside of the milk preparation container 51 is provided. For this reason, since the separator 55 occupies the central portion of the milk conditioning container 51, there is no portion with a low flow velocity. As a result, the milk powder MP and the liquid L do not come into contact with each other in the central portion where the flow rate is small in the milk preparation container 51, and mixing is performed only in the vicinity of the inner wall surface of the milk preparation container 51 with strong momentum. Thereby, the milk powder MP and the liquid L are completely mixed.

  As a result, conventionally, when the powdered milk MP and the heated liquid L are mixed, the surface of the lump of the powdered milk MP sometimes stretches a film and does not melt. However, in the present embodiment, the heated liquid L is vigorously discharged from the inflow port 52 along the inner wall surface of the milk preparation container 51, and the lump of powdered milk MP is dispersed. As a result, since the film formation on the surface of the powdered milk MP can be prevented, the milk M can be adjusted without remaining undissolved.

  Further, in the powdered milk preparation device 10A of the present embodiment, the milk preparation unit 50A has only a separator 55 inside the milk preparation container 51, and thus has a simple structure, Easy to clean.

  Therefore, it is possible to provide a powdered milk preparation device 10A that includes a milk preparation unit 50A that can be easily mixed and that can efficiently mix the powdered milk MP and the heated liquid L.

  Further, in the powder milk preparation device 10A of the present embodiment, a discharge port cover 54 that covers the discharge port 53 and has a slit 54a through which the milk M passes is formed on the upper side of the discharge port 53. ing. The separator 55 is provided on the discharge port cover 54.

  That is, in the present embodiment, a discharge port cover 54 that covers the discharge port 53 and has a slit 54 a through which milk M passes is formed on the outer periphery.

  For this reason, the milk M in which the powdered milk MP and the heated liquid L are mixed is not directly discharged from the discharge port 53 but through the slit 54 a formed on the outer periphery of the discharge port cover 54. 53 is discharged. Therefore, the liquid L and the milk powder MP are not easily short-circuited and discharged from the inlet 52 to the outlet 53, and the milk M is discharged from the outlet 53 after circulating around the inner wall surface of the milk preparation container 51. That is, the slit 54 a is formed on the outer periphery of the discharge port cover 54, and this portion is a position near the inner wall surface of the milk preparation container 51. For this reason, since this portion is a strong vortex, the milk powder MP and the heated liquid L are sufficiently mixed and circulated by the vortex. As a result, it is possible to prevent the milk powder MP that is not sufficiently mixed from being easily discharged from the discharge port 53. Thereby, clogging of the discharge port 53 due to the powdered milk MP flowing directly into the discharge port 53 can be prevented.

  In the present embodiment, the separator 55 is provided on the discharge port cover 54. For this reason, it is possible to prevent a short circuit and clogging to the discharge port 53, simplify the configuration so as to facilitate cleaning, and prepare the milk conditioning unit 50A capable of efficiently mixing the milk powder MP and the heated liquid L. The powdered milk preparation apparatus 10A provided can be provided.

  In the powdered milk preparation device 10 </ b> A according to the present embodiment, the separator 55 has a conical shape having a circular bottom surface on the discharge port cover 54. The angle formed by the conical circular bottom surface and the generatrix is formed at an angle larger than the falling angle of the milk powder MP. Here, the falling angle of the powdered milk MP is an angle formed by the conical circular bottom surface and the generatrix, which is the limit that does not fall when considering the friction coefficient when the milk powder MP is present on the cone-shaped slope. Say.

  Thus, even when powdered milk MP is charged into the milk preparation container 51, the powdered milk MP falls near the inner wall surface of the milk conditioning container 51 along the inclination of the cone bus. On the inner wall surface side, the liquid L discharged from the inflow port 52 flows in vigorously, so that the milk powder MP is sufficiently mixed with the liquid L. Accordingly, it is possible to prevent remaining powdered milk MP that is insufficiently mixed.

  Further, in the powdered milk preparation device 10A in the present embodiment, the separator 55 has a conical shape having a circular bottom surface on the discharge port cover 54, and a conical circular bottom surface and a generatrix are formed. The angle is formed to be larger than the falling angle of the powdered milk MP.

  Thereby, when milk powder MP is thrown into the milk preparation container 51, the milk powder MP that has fallen to the slope of the cone falls to the inner peripheral side of the milk preparation container 51. As a result, even when powdered milk MP is introduced into the milk preparation container 51, the powdered milk MP falls to the vicinity of the inner wall surface of the milk preparation container 51 along the inclination of the conical bus. In the vicinity of the inner wall surface, the liquid discharged from the inflow port 52 flows in vigorously, so that the milk powder MP is sufficiently mixed with the liquid. Accordingly, it is possible to prevent remaining powdered milk MP that is insufficiently mixed.

  Further, in the powdered milk preparation device 10 </ b> A according to the present embodiment, an uneven shape 55 a is formed on the surface of the separator 55. Thereby, the uneven | corrugated shape 55a formed in the surface of the separator 55 can disturb the flow of the liquid L discharged from the inflow port 52, and can promote mixing with milk powder MP and the liquid L. FIG.

[Embodiment 2]
The following will describe another embodiment of the present invention with reference to FIG. The configurations other than those described in the present embodiment are the same as those in the first embodiment. For convenience of explanation, members having the same functions as those shown in the drawings of the first embodiment are given the same reference numerals, and explanation thereof is omitted.

  In addition to the configuration of the powdered milk preparation device 10A of the first embodiment, the powdered milk preparation device 10B of the present embodiment includes a milk preparation unit 50B as shown in FIGS. 7 (a) and 7 (b). The difference is that the inner wall surface of the milk preparation container 51 is provided with at least one rib 56 in the direction along the height direction of the inner wall surface or in the direction along the circumferential direction of the inner wall surface.

  The configuration of the powdered milk preparation device 10B as the mixture generation device in the present embodiment will be described based on FIGS. 7 (a) and 7 (b). (A) of FIG. 7 is a top view which shows the structure of the milk preparation part 50B as a mixing part in the powdered milk preparation apparatus 10B as a mixture production | generation apparatus in this Embodiment. FIG. 7B is a longitudinal sectional view showing the configuration of the milk conditioning unit 50B.

  As shown in FIGS. 7A and 7B, the milk conditioning unit 50B in the powdered milk preparation device 10B of the present embodiment has an inner wall surface on the inner wall surface of the milk conditioning container 51 in the milk conditioning unit 50B. For example, four ribs 56 are provided in a direction along the circumferential direction.

  That is, in the present embodiment, the ribs 56 are, for example, at four positions of 0 °, 90 °, 180 °, and 270 ° in the horizontal cross section of the upper cylindrical portion of the milk conditioning container 51. Four ribs 56 are formed to protrude toward the center. Therefore, these four ribs 56 are formed along the direction along the circumferential direction of the inner wall surface.

  Further, the rib 56 of the present embodiment is formed to have a length substantially equal to the vertical length of the cylindrical portion in the vertical cross section of the upper cylindrical portion of the milk adjustment container 51. As a result, the rib 56 is provided in a direction along the height direction of the inner wall surface.

  Thus, in the milk preparation unit 50B of the present embodiment, the inner wall surface of the milk adjustment container 51 has a rib that satisfies both the direction along the height direction of the inner wall surface and the direction along the circumferential direction of the inner wall surface. Is provided. However, the present invention is not necessarily limited thereto, and the inner wall surface of the milk adjustment container 51 satisfies at least one of the direction along the height direction of the inner wall surface and the direction along the circumferential direction of the inner wall surface. It is sufficient if the rib 56 is provided.

  The size and shape of the ribs 56 are preferably set arbitrarily according to the required stirring ability.

  That is, when the milk adjustment container 51 is cylindrical and the separator 55 is conical, the flow rate of the liquid L decreases as the distance from the inner wall surface depends on the diameter size of the milk adjustment container 51. Therefore, in the vicinity of the center of the milk preparation container 51, a sufficient flow rate cannot be obtained, and the stirring ability may be reduced.

  In this case, by providing the rib 56 on the inner wall surface of the milk preparation unit 50B, the flow along the inner wall surface of the milk adjustment container 51 is disturbed, and the flow toward the center of the milk adjustment container 51 or the flow toward the vertical direction. Can be formed.

  As a result, the stirring ability of the powdered milk MP and the liquid L that has been introduced can be further improved, and the dissolution rate of the powdered milk MP can be improved.

  In the present embodiment, the ribs 56 are formed on the inner wall surface of the milk preparation container 51 so as to be orthogonal to the flow of the liquid L, but may be provided so as to be parallel to the flow of the liquid L. In addition, ribs 56 can be formed on the discharge port cover 54 in order to improve the stirring ability in the vertical direction.

  Thus, in the milk preparation unit 50B in the powdered milk preparation device 10B of the present embodiment, the inner wall surface of the milk preparation container 51 as a mixing container has a direction along the height direction of the inner wall surface or the inner wall surface. The ribs 56 satisfying at least one of the directions along the circumferential direction are provided.

  Thereby, the rib 56 provided on the inner wall surface of the milk preparation container 51 disturbs the flow of the liquid L discharged from the inflow port 52 and promotes the mixing of the powdered milk MP as the mixture raw material and the liquid L. Can do.

[Embodiment 3]
The following will describe still another embodiment of the present invention with reference to FIG. The configurations other than those described in the present embodiment are the same as those in the first embodiment and the second embodiment. For convenience of explanation, members having the same functions as those shown in the drawings of Embodiment 1 and Embodiment 2 are given the same reference numerals, and explanation thereof is omitted.

  In the milk preparation unit 50C as the mixing unit in the powdered milk preparation device 10C as the mixture production apparatus of the present embodiment, as shown in FIGS. 8A and 8B, the separator 55 ′ as the central protrusion is The difference is that the liquid L that is inflowing is arranged downstream of the liquid L.

  The configuration of the milk preparation unit 50C as the mixing unit in the powdered milk preparation device 10C as the mixture generation device of the present embodiment will be described based on FIGS. 8 (a) and 8 (b). (A) of FIG. 8 is a top view which shows the structure of 50 C of milk preparation parts as a mixing part in 10 C of powdered milk preparation apparatuses as a mixture production | generation apparatus in this Embodiment. FIG. 8B is a longitudinal sectional view showing the configuration of the milk conditioning unit 50C.

  In the milk preparation unit 50C of the powdered milk preparation device 10C of the present embodiment, as shown in FIGS. 8 (a) and 8 (b), the separator 55 ′ is arranged on the downstream side of the inflowing liquid L. Yes.

  That is, the flow rate of the liquid L flowing into the milk adjustment container 51 of the milk adjustment unit 50C receives resistance such as the inner wall surface of the milk adjustment container 51. Invite.

  Therefore, in the present embodiment, the separator 55 ′ is disposed so as to be biased toward the downstream side of the flow of the liquid L. Thereby, more powdered milk MP as dry powdered milk can be distributed to the upstream liquid L with the fastest flow rate of the liquid L, and less can be distributed to the downstream with a slow flow rate. As a result, the milk M can be adjusted more efficiently.

  As described above, in the milk preparation unit 50 </ b> C in the powder milk preparation device 10 </ b> C of the present embodiment, the separator 55 ′ is arranged on the downstream side of the liquid L flowing into the milk preparation container 51.

  As a result, on the upstream side where the flow velocity is the fastest, a large amount of powdered milk MP can be distributed to the liquid L in a wide area, and both can be mixed. On the other hand, on the downstream side of the liquid L, the flow velocity is slow, so it is better that the mixing of both is small. In the present embodiment, since the separator 55 ′ is arranged on the downstream side of the inflowing liquid L, the downstream side is narrow.

  As a result, since the width of the flow path is taken into account according to whether the flow rate is fast or slow, the milk powder MP and the liquid L can be mixed more efficiently.

[Embodiment 4]
The following will describe still another embodiment of the present invention with reference to FIG. The configurations other than those described in the present embodiment are the same as those in the first to third embodiments. For convenience of explanation, members having the same functions as those shown in the drawings of Embodiments 1 to 3 are given the same reference numerals, and descriptions thereof are omitted.

  As shown in FIGS. 9A and 9B, the milking unit 50D as the mixing unit in the powdered milk milking device 10D as the mixture generating device of the present embodiment has a central projecting body from the lid 57. It differs in that it is formed by drooping.

  The configuration of the milk preparation unit 50D as the mixing unit in the powdered milk preparation device 10D as the mixture generation device of the present embodiment will be described based on FIGS. 9 (a) and 9 (b). (A) of FIG. 9 is a top view which shows the structure of the milk preparation part 50D as a mixing part in the powdered milk preparation apparatus 10D as a mixture production | generation apparatus in this Embodiment. FIG. 9B is a longitudinal sectional view showing the configuration of the milk conditioning unit 50D.

  In the powdered milk preparation device 10D as the mixture generation device of the present embodiment, as shown in FIGS. 9A and 9B, the milk preparation unit 50D as the mixing unit is a milk preparation container 51 as a mixing container. A lid 57 is provided. A hanging body 58 is formed as a central projecting body depending on the lid body 57.

  That is, the central projecting body of the present invention occupies the central portion of the milk adjustment container 51, and thereby has no significance in eliminating the presence of a portion having a low flow velocity. As a result, the central projecting body does not necessarily have to be provided in the milk preparation container 51, and a lid body 57 that covers the milk conditioning container 51 is provided, and a hanging body 58 is formed as a central projecting body depending on the lid body 57. Is possible. Also by this, the effect similar to the separator 55 demonstrated in Embodiment 1-3 can be acquired.

  On the contrary, if the hanging body 58 is provided on the lid body 57, the structure inside the milk preparation container 51 is further simplified, so that the inside of the milk preparation container 51 can be more easily cleaned.

  In the present embodiment, the lid 57 is formed to be detachable from the milk adjustment container 51. Thereby, since the lid body 57 can be washed after the lid body 57 is removed from the milk preparation container 51, the lid body 57 can be easily washed.

[Summary]
The mixture production | generation apparatus (powdered milk preparation apparatus 10A) in aspect 1 of this invention mixes the raw material for mixtures (powdered milk MP) and the heated liquid L in a mixing part (milk preparation part 50A), and is a liquid mixture ( In the mixture generating apparatus that generates milk M), the mixing unit (milk preparation unit 50A) includes a mixing container (milking container 51) into which the raw material for mixture (milk powder MP) is charged, and the mixing container (milking formula). An inlet 52 for discharging the heated liquid L along the inner wall surface of the container 51), and a discharge for discharging the liquid mixture (milk M) mixed in the mixing container (milk preparation container 51). An outlet 53 and a central projecting body (separator 55) provided at a central portion inside the mixing container (milk control container 51) are characterized.

  According to the invention described above, the mixing unit includes a mixing container into which the mixture raw material is charged, an inlet for discharging the heated liquid along the inner wall surface of the mixing container, and an inside of the mixing container. And a discharge port for discharging the mixed liquid mixture.

  For this reason, the heated liquid is vigorously discharged from the inflow port along the inner wall surface of the mixing container into the mixing container in which the raw material for the mixture has been charged in advance. As a result, the flowed-in liquid flows along the inner wall surface of the mixing container while being mixed with the mixture raw material. Then, the mixed liquid mixture is discharged from the discharge port.

  Here, the vortex flow of the liquid along the inner wall surface of the mixing vessel has a high flow velocity in the vicinity of the inner wall surface, but a small flow velocity in the central portion of the mixing vessel. As a result, in the central part of the mixing container, mixing of the mixture raw material and the liquid becomes insufficient.

  Therefore, in the present invention, a central projecting body provided at the central portion inside the mixing container is provided. For this reason, since the central protrusion occupies the central portion of the mixing container, there is no portion with a small flow velocity.

  As a result, the mixture raw material and the liquid do not come into contact with each other in the central portion where the flow velocity in the mixing container is small, and the mixing is performed only in the vicinity of the inner wall surface of the strong mixing container. Thereby, the raw material for a mixture and a liquid come to be mixed completely.

  Moreover, in the mixture production | generation apparatus of this invention, since the mixing part is only provided with the center protrusion in the inside of the mixing container, the structure is simple and the inside is easy to wash.

  Therefore, it is possible to provide a mixture generating apparatus that has a simple structure that facilitates cleaning, and that includes a mixing unit that can efficiently mix the raw material for the mixture and the heated liquid.

  The mixture generating apparatus (powdered milk preparation apparatus 10A, 10B, 10C) according to aspect 2 of the present invention is the mixture generating apparatus according to aspect 1, wherein the discharge port 53 is covered above the discharge port 53 and the liquid A discharge port cover 54 having a gap (slit 54 a) formed on the outer periphery for passing the mixture (milk M) is provided, and the central protrusion (separators 55 and 55 ′) is placed on the discharge port cover 54. It can be said that it is provided.

  In the present invention, a discharge port cover is provided on the upper side of the discharge port. The discharge port cover is formed on the outer periphery with a gap through which the liquid mixture passes. For this reason, the liquid mixture in which the raw material for the mixture and the heated liquid are mixed is not directly discharged from the discharge port, but is discharged from the discharge port through a gap formed on the outer periphery of the discharge port cover. The Therefore, the liquid and the mixture raw material are not easily short-circuited and discharged from the inlet to the outlet, and after circulating around the inner wall surface of the mixing container, the liquid mixture is discharged from the outlet. That is, the gap is formed on the outer periphery of the discharge port cover, and this portion is located near the inner wall surface of the mixing container. For this reason, since this portion is a strong vortex, the mixture raw material and the heated liquid are sufficiently mixed and circulated by the vortex. As a result, it is possible to prevent the mixture raw material that is not sufficiently mixed from being easily discharged from the discharge port. This also prevents clogging of the outlet due to the mixture raw material flowing directly into the outlet.

  In the present invention, the central protrusion is provided on the discharge port cover. For this reason, it is possible to prevent a short circuit and clogging to the discharge port, simplify the structure so as to facilitate cleaning, and a mixture provided with a mixing part capable of efficiently mixing the raw material for the mixture and the heated liquid A generation device can be provided.

  The mixture generation apparatus (powdered milk preparation apparatus 10A, 10B, 10C) according to aspect 3 of the present invention is the mixture generation apparatus according to aspect 2, wherein the central protrusion (separator 55, 55 ') is provided on the outlet cover 54. It has a conical shape with a circular bottom surface, and the angle formed by the conical circular bottom surface and the generatrix is larger than the falling angle of the mixture raw material (milk powder MP). Is preferred.

  Thereby, when the raw material for a mixture is thrown into a mixing container, the raw material for a mixture which fell to the slope of a cone falls to the inner peripheral side of a mixing container. As a result, even when the mixture raw material is introduced into the mixing container arbitrarily, the mixture raw material falls to the vicinity of the inner wall surface of the mixing container along the inclination of the conical generatrix. In the vicinity of the inner wall surface, the liquid discharged from the inlet flows in vigorously, so that the mixture raw material is sufficiently mixed with the liquid. Accordingly, it is possible to prevent the mixture raw material from being insufficiently mixed.

  The mixture production | generation apparatus (powder milk preparation apparatus 10D) in aspect 4 of this invention is the mixture production | generation apparatus in aspect 1, The said mixing part (milk preparation part 50D) is a lid | cover which covers the said mixing container (milk adjustment container 51). While providing the body 57, the said center protrusion (hanging body 58) can be formed hanging down from the said cover body 57. FIG.

  That is, the central protrusion is meaningful in eliminating the presence of a portion having a low flow velocity by occupying the central portion of the mixing container. As a result, the central protrusion need not necessarily be provided in the mixing container, and it is possible to provide a lid that covers the mixing container and to form a central protrusion that hangs on the lid. An effect can be obtained.

  On the contrary, if the central protrusion is provided on the lid, the structure inside the mixing container is further simplified, so that the inside of the mixing container can be more easily cleaned. When the lid is formed so as to be detachable from the mixing container, the lid can be cleaned after the lid is removed from the mixing container, so that the lid can be easily cleaned.

  The mixture generation apparatus (powdered milk preparation apparatus 10B) according to aspect 5 of the present invention is the mixture generation apparatus according to any one of aspects 1 to 4, wherein the inner wall surface of the mixing container (milk adjustment container 51) It is preferable that a rib 56 that satisfies at least one of a direction along the height direction of the wall surface and a direction along the circumferential direction of the inner wall surface is provided.

  Thereby, the rib with which the inner wall surface of the mixing container was equipped can disturb the flow of the liquid discharged from an inflow port, and can promote mixing with the raw material for mixtures, and a liquid.

  The mixture production | generation apparatus (powdered milk preparation apparatus 10A) in aspect 6 of this invention is the mixture production | generation apparatus in any one of aspect 1-5, The uneven | corrugated shape 55a is on the surface of the said center protrusion (separator 55). Preferably it is formed.

  Thereby, the uneven | corrugated shape formed in the surface of a center protrusion can disturb the flow of the liquid discharged from an inflow port, and can promote mixing with the raw material for mixtures, and a liquid.

  The mixture production | generation apparatus (powdered milk preparation apparatus 10C) in aspect 7 of this invention is a mixture production | generation apparatus in any one of aspects 1-6, The said center protrusion (separator 55 ') is the said mixing container (milk preparation). It is preferable that the liquid L flowing into the container 51) is arranged on the downstream side of the liquid L.

  As a result, on the upstream side where the flow velocity is the fastest, it is possible to distribute both of the mixture raw materials to the liquid in a wide place and mix them. On the other hand, on the downstream side of the liquid, the flow rate becomes slow, so it is better that the mixing of both is less. In the present invention, the central projecting body is biased toward the downstream side of the inflowing liquid, so that the downstream side is narrow.

  As a result, since the width of the flow path is taken into account according to whether the flow rate is fast or slow, the mixture raw material and the liquid can be mixed more efficiently.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims, and the technical means disclosed in different embodiments can be appropriately combined. Such embodiments are also included in the technical scope of the present invention.

  The present invention can be applied to a mixture generating apparatus that mixes a mixture raw material and a heated liquid in a mixing section to generate a liquid mixture. Specifically, by using hot water cooling as a heated liquid, for example, it is mixed with powdered milk as a raw material for a mixture to produce milk, or mixed with tea leaves as a raw material for a mixture including tea packs to make tea. Or mixed with powdered juice as a raw material for a mixture to produce a juice.

DESCRIPTION OF SYMBOLS 1 Liquid tank 2 Liquid pump 3 1st heat exchanger 4 Heater 7 Milk receiving part 8 Cooling water tank 9 Cooling water pump 10A Powdered milk preparation apparatus (mixture production | generation apparatus)
10B Powdered milk preparation device (mixture production device)
10C Powdered milk preparation device (mixture production device)
10D powdered milk preparation device (mixture production device)
11 Liquid supply line 12 Cooling water line 20 Control part 50 Milking part (mixing part)
51 Milk container (mixing container)
52 Inlet 53 Discharge port 54 Discharge port cover 54a Slit (gap)
55 Separator (center protrusion)
55a Concave and convex shape 56 Rib 57 Lid body 58 Suspended body (central projecting body)
60 Second heat exchanger CW Cooling water L Liquid M Milk (liquid mixture)
MP powdered milk (raw material for mixture)

Claims (7)

In a mixture generating device that generates a liquid mixture by mixing a raw material for a mixture and a heated liquid in a mixing unit,
The mixing part is
A mixing container into which the mixture raw material is charged;
An inlet for discharging the heated liquid along the inner wall surface of the mixing container;
A discharge port for discharging the liquid mixture mixed inside the mixing container;
The mixture production | generation apparatus provided with the center protrusion provided in the center part inside the said mixing container. On the upper side of the discharge port is provided with a discharge port cover that covers the discharge port and in which a gap through which the liquid mixture passes is formed on the outer periphery,
The said center protrusion is provided on the said discharge port cover, The mixture production | generation apparatus of Claim 1 characterized by the above-mentioned. The central projecting body has a conical shape having a circular bottom surface on the discharge port cover, and
3. The mixture generating apparatus according to claim 2, wherein an angle formed by the conical circular bottom surface and the generatrix is formed to be larger than a falling angle of the mixture raw material. The mixing unit includes a lid that covers the mixing container,
The mixture generating apparatus according to claim 1, wherein the central projecting body is formed to hang down from the lid body.   2. The ribs satisfying at least one of a direction along a height direction of the inner wall surface and a direction along a circumferential direction of the inner wall surface are provided on the inner wall surface of the mixing container. The mixture production | generation apparatus of any one of -4.   The mixture generating apparatus according to any one of claims 1 to 5, wherein an uneven shape is formed on a surface of the central projecting body.   The mixture generating apparatus according to any one of claims 1 to 6, wherein the central projecting body is arranged to be distributed downstream of the liquid flowing into the mixing container.