JP2007252247A - Enzyme water-producing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an enzyme water-producing apparatus which can shorten an enzyme water-producing time as much as possible, while preventing affection to an enzyme preparation. <P>SOLUTION: This enzyme water-producing apparatus is characterized by setting, to a control unit 18, such a control sequence as performing a temperature-rising control for supplying a large electric power to a heater 16 to rise the temperature of a liquid in a production tank T, reducing the electric power supplied to the heater 16 to maintain and control the temperature of the liquid, after the temperature of the liquid rises to a target temperature region, and then supply an enzyme preparation X to the production tank T with an enzyme preparation supply mechanism K, when transferred to the temperature control. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention includes a control unit for supplying enzyme water to a production tank by supplying water using a water supply mechanism and supplying an enzyme preparation using an enzyme preparation supply mechanism, and generating heat by applying heat with a heater to maintain a set temperature. The present invention relates to an enzyme water generator.

  In the enzyme water supply system configured as described above, there are devices described in Patent Document 1 and Patent Document 2 as apparatuses related to the enzyme water generation apparatus.

  In Patent Document 1, water is fed from a water absorption pipe to a production tank (in the literature, a production tank), an enzyme preparation (microorganism preparation in the literature) is added to this water, and the temperature is controlled by heating with a heater. The system is configured to generate enzyme water (enzyme aqueous solution in the literature) containing enzymes such as lipase, protease, amylase, and cellulase, and store the thus generated enzyme water in a stock tank (reservoir tank in the literature). Yes. Moreover, in this patent document 1, the piping which sends waste water from an automatic dishwasher to a grease trap, and the piping which sends the enzyme water stored in the stock tank with respect to this grease strap are formed, and a pump is set to each piping. (Paragraph numbers [0011] to [0013], FIG. 1 and FIG. 2).

  In Patent Document 2, water from a water pipe or the like is stored in a production tank (in the literature, a breeding tank), and then a heater in the tank is energized so that the temperature in the production tank is within a target temperature range (in the literature). The heater is turned off and the heater is turned off, and an appropriate amount of enzyme preparation (liquid microbial preparation in the literature) is injected into the production tank in this state (paragraph number [0008]).

  In Patent Document 2, since the surface temperature of the heater is high when the heater is energized and the temperature of the water is increased, when the enzyme preparation is supplied at the time of the temperature increase, there is a disadvantage that microorganisms come into contact with the surface of the heater and die. Therefore, in order to avoid this inconvenience, the enzyme preparation is supplied after the energization (power supply) to the heater is stopped.

Japanese Patent Laid-Open No. 2003-266062 JP 2000-325938 A

  As described in Patent Document 2, in the case where the enzyme preparation is supplied after the power supply to the heater is stopped, the killing of microorganisms contained in the enzyme preparation is suppressed, but after the enzyme preparation is supplied, As a result, the temperature of the liquid in the production tank continues to decrease, which causes a problem that the optimum environment for producing the enzyme cannot be maintained. Therefore, as described in Patent Document 1, there may be a device in which the temperature inside the production tank is continuously controlled by the heat from the heater. For example, when the liquid temperature decreases, power is supplied to the heater. In the control mode in which the power supply to the heater is stopped when the liquid temperature reaches the target temperature, the temperature of the outer surface of the heater rises too much during the power supply, and as described in Patent Document 2, The microorganisms contained in the enzyme preparation are killed.

  From another point of view, the technique described in Patent Document 2 makes it difficult to determine whether or not the outer surface temperature of the heater is a temperature that causes the death of microorganisms, and grasps an appropriate supply timing. There was room for improvement in difficult aspects. In particular, in order to avoid such inconvenience, it is conceivable to set the control mode so that the enzyme preparation is supplied after a sufficient time has passed since the power supply to the heater was stopped. In the case where the control form is set, the time is wasted until the generation of the enzyme water is completed. Considering the nature of the enzyme, when it reaches a high temperature state, the enzyme falls into an inactivated state (heat inactivated state) due to heat denaturation of the protein. Therefore, even when an enzyme preparation that does not contain microorganisms is used, this enzyme preparation is supplied. In some cases, it is desired that the outer surface temperature of the heater be in a low temperature state.

  An object of the present invention is to rationally configure an enzyme water generator that can shorten the generation time of enzyme water as much as possible while suppressing adverse effects on the enzyme preparation.

A feature of the present invention is that a control unit for generating enzyme water by supplying water to a production tank by a water supply mechanism and supplying an enzyme preparation by an enzyme preparation supply mechanism and maintaining the temperature at a set temperature by applying heat with a heater. In the enzyme water generator comprising:
The control unit includes a temperature sensor for measuring the liquid temperature in the generation tank, and the control unit increases the liquid temperature in the generation tank by supplying power to the heater after storing water in the generation tank by the water supply mechanism. After the temperature sensor detects that the temperature has reached the target temperature range by the temperature increase control, the power value supplied to the heater is lowered from the power value in the temperature increase control to achieve the target temperature range. The control sequence is set so that the enzyme preparation is supplied by controlling the enzyme preparation supply mechanism during the transition.

  With this configuration, a relatively large amount of power is supplied to the heater at the time of temperature rise control, enabling temperature rise in a short time, and at the time of transition to temperature control after this temperature rise control, the temperature rise is controlled. By supplying electric power smaller than that during temperature control to the heater, the surface temperature of the heater is lowered. Since the enzyme preparation is supplied when this state is reached, for example, if the enzyme preparation contains microorganisms, the microorganisms will not be killed, and if the microorganism does not contain microorganisms, the enzyme will reach a high temperature and be lost. It does not lead to inconvenience to live and does not cause a decline in ability. As a result, an enzyme water generating apparatus capable of shortening the generation time of enzyme water while suppressing adverse effects on the enzyme preparation was constructed. In particular, in the present invention, since the enzyme preparation is supplied after confirming that the temperature control has shifted from the temperature control to the temperature control, the temperature increase is continued, for example, when the heater control system is out of order. In the situation where the water temperature is high, the enzyme preparation is not supplied, and the adverse effect on the enzyme preparation can be reliably avoided.

In the present invention, the target temperature region is formed on the low temperature side based on the control target temperature,
In the temperature control, a control mode of the temperature control is performed such that proportional control is performed to supply power to the heater in proportion to the deviation between the liquid temperature in the generation tank measured by the temperature sensor and the control target temperature. May be set.

  With this configuration, by performing proportional control, the power supplied to the heater decreases as the liquid temperature in the tank approaches the target temperature, so that adverse effects due to heat on microorganisms contained in the enzyme preparation can be suppressed. .

  The present invention includes a power control circuit that adjusts the power supplied to the heater by setting a duty ratio. In the temperature increase control, the duty ratio is set to a maximum value, and in the temperature control, the temperature sensor is used. The control mode of the control unit may be set so as to set the duty ratio based on the measured liquid temperature value.

  With this configuration, it is possible to easily change the power supplied to the heater by providing a relatively simple power control circuit for setting the duty ratio.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
〔System configuration〕
As shown in FIGS. 1 to 3, an enzyme water generator A that generates enzyme water Wx by adding enzyme preparation X to tap water to perform temperature control, and enzyme water discharged from the enzyme water generator A An enzyme water supply system is configured including a stock tank B for storing Wx. The stock tank B is a resin molded product having a simple container structure that opens upward.

  This enzyme water supply system is installed in restaurants such as fast food restaurants and restaurant kitchens where the floor F is easily soiled by oils and fats. By artificially spraying the enzyme water Wx stored in the tank B on the floor surface F, the oil and fat components on the floor surface F are decomposed and washed away by the action of the enzyme contained in the enzyme water Wx. By washing in this way, the slime of the floor surface F is removed and a clean surface is obtained.

  As shown in FIG. 1, a grease trap 2 is formed on the floor surface F of the kitchen at a position where water from the drainage channel 1 is guided. In such a kitchen, wastewater used for cooking and tableware washing flows into the grease trap 2 from the drain groove 1, and the oil and fat components contained in the wastewater are stored in the grease strap 2. Also, the enzyme water Wx sprayed on the floor surface F flows into the grease trap 2 from the drainage groove 1 and stays in the grease strap 2 to decompose oil and fat components and wash the inside of the grease strap 2. Works.

  The enzyme water generator A is installed on a table 3 in the kitchen, and the wall surface 4 is provided with a valve 5 that can be opened and closed by a handle 5A so as to control the amount of tap water. The valve 5 and the enzyme water generator A Between the two, a water pipe 6 for sending tap water from the valve 5 to the enzyme water generator A is formed. Moreover, the enzyme water Wx produced | generated with this enzyme water production | generation apparatus A is sent out to the said stock tank B through flexible discharge hoses 7, such as rubber | gum.

[Enzyme water generator]
The enzyme water generator A includes a generation tank T inside a metal case 10, and a water supply mechanism J for supplying tap water to the generation tank T, and a liquid in a bottle 8 made of a translucent resin. An enzyme preparation supply mechanism K for adding the enzyme preparation X to the production tank T (to be supplied in the form of dripping) and a discharge mechanism L for discharging the enzyme water Wx produced in the production tank T are provided. Inside the production tank T is a float type liquid level sensor 15 for detecting the level of the liquid level, a heater 16 for heating the solution in the production tank T (water to which the enzyme preparation X has been added), and this solution. And a temperature sensor 17 for measuring the temperature. Further, a control unit 18 that performs control to generate the enzyme water Wx is provided at a side position of the case 10.

  Incidentally, the enzyme preparation X contains enzymes such as lipase, protease, amylase, and cellulase, and also contains microorganisms that produce these enzymes. The microorganisms are in a dormant state at a low temperature, and are about 40 ° C. It has the property of generating an enzyme by being activated by being maintained in the above state. In addition, the enzyme preparation X may contain only an enzyme first, including microorganisms.

  The case 10 is formed in a box shape by joining a metal plate having high corrosion resistance such as stainless steel. The case 10 includes a case main body 10 </ b> A and a door 10 </ b> B disposed on the front side of the case 10. An operation panel 11 is provided on the front wall 10C in a position parallel to the door 10B on the side where the control unit 18 is disposed on the front surface of the case body 10A. The door 10B is supported by the case body 10A so as to be swingable and openable around a longitudinal axis Y formed at an end opposite to the operation panel 11.

  In the enzyme water generating apparatus A, the door 10B is opened so that the bottle 8 can be easily replaced, and the door 10B has a window portion so that the remaining amount of the enzyme preparation X stored in the bottle 8 can be visually confirmed. 10W is formed.

[Internal structure of enzyme water generator]
The generation tank T is made of a transparent resin and is formed in an inverted L shape as shown in FIG. 2 in a front view. The generation tank T includes an upper plate 20 that covers an upper opening. A space for accommodating the bottle 8 is formed on the lower side of the generation tank T.

  The water supply mechanism J includes a water supply pipe 21 that supplies water to the production tank T from the water pipe 6 and a water supply electromagnetic valve 22 that is disposed at an intermediate position of the water supply pipe 21.

  The enzyme preparation supply mechanism K includes a suction tube 25 for sucking up the liquid enzyme preparation X stored in the translucent resin bottle 8, a constant capacity pump KP to which the enzyme preparation X is guided from the suction tube 25, A supply tube 26 to which the enzyme preparation X is fed from the constant volume pump KP and a nozzle 27 connected to the tip of the supply tube 26 are provided. In addition, the ratio of the amount of the enzyme preparation X added from the nozzle 27 to the amount of water stored in the production tank T in this way becomes the mixing rate described later.

  The suction tube 25 is made of a transparent and flexible resin, and an end portion on the suction side of the suction tube 25 is passed through a through-hole formed in a lid 8A fixed to the upper opening of the bottle 8 in a screw manner. It is inserted inside the bottle. The supply tube 26 is made of a transparent and flexible resin, and the discharge side of the supply tube 26 is connected to the upper end of the nozzle 27. The nozzle 27 has a conical shape with a small diameter on the lower end side, the upper end portion is supported by the upper plate 20, and a small opening is formed at the lower end.

  In the constant capacity pump KP, a piston 31 is fitted in a vertically oriented cylinder 30 so as to be movable up and down, and a suction side check valve 32 communicating with the cylinder 30 is provided with an end portion on the discharge side of the suction tube 25. Connected. One end of the supply tube 26 is connected to a check valve 33 on the discharge side that communicates with the cylinder 30. A connecting shaft 35 is formed at an eccentric position on the output shaft 34A of the electric motor 34, and the connecting shaft 35 and the plate 36 at the lower end of the piston 31 are connected by a connecting body 35A. Is provided with a crank mechanism that converts the torque into a reciprocating force and transmits it to the piston 31. Further, an operation sensor 37 is provided that outputs a timing signal indicating that the piston 31 has moved from the operation position of the crank mechanism to the upper end.

  This constant-capacity pump KP has the performance of causing the piston 31 to reciprocate once each time the output shaft 34A of the electric motor 34 makes one revolution, and delivering the amount of enzyme preparation X set for each reciprocating operation. When the electric motor 34 is operated, the operation sensor 37 counts the number of operations of the piston 31 and feeds it back to the control unit 18 so that the supply amount of the enzyme preparation X can be grasped.

  The discharge mechanism L includes a discharge pipe 38 that guides the enzyme water Wx at the bottom of the production tank T to the discharge hose 7, and a discharge electromagnetic valve 39 disposed in the middle of the discharge pipe 38.

  The liquid level sensor 15 includes a ring-shaped float 15B externally fitted to a rod 15A projecting downward from the upper plate 20 and a magnet (not shown) provided in the float 15B. And a reed switch (not shown) that is turned on or off by the action of.

  The heater 16 has a structure in which a heating element that generates heat when energized is housed inside a metal tube, and is supported by the upper plate 20 in a form protruding downward from the upper plate 20. The temperature sensor 17 has a rod-like structure in which a thermistor or the like is accommodated, and is supported by the upper plate 20 so as to protrude downward from the upper plate 20.

[Control configuration of enzyme water generator]
As shown in FIG. 2, the operation panel 11 includes a start button 51, a stop button 52, a power lamp 53, a plurality of monitor lamps 54, an alarm lamp 55, a liquid crystal display 56, and a plurality of setting buttons 57. It has.

  When control is performed in the enzyme water generator A, it is confirmed by turning on the power lamp 53 that the power is turned on, and a plurality of setting buttons 57 on the operation panel 11 are operated to set a schedule. In this setting, the setting contents can be confirmed via the liquid crystal display 56, and the control is started by operating the start button 51, and the control is stopped by operating the stop button 52. When an error occurs, the alarm lamp 55 is turned on and the control is stopped.

  As shown in FIG. 4, the control unit 18 includes an input / output interface 41 for accessing a signal to the microprocessor CPU. The input / output interface 41 receives a detection signal from the liquid level sensor 15. The control signal is output to the power control circuit 16S that controls the power supplied to the heater 16, and the measurement signal from the A / D conversion circuit 17S that converts the measurement value of the temperature sensor 17 into a digital signal is input. A drive signal is output to the valve drive circuit 22S of the electromagnetic valve 22, a drive signal is output to the motor drive circuit 34S of the electric motor 34, a detection signal from the operation sensor 37 is input, and the valve of the discharge electromagnetic valve 39 A drive signal is output to the drive circuit 39S, and a signal system is formed so that information can be accessed with the operation panel 11. That.

  A schedule table 42, a schedule management unit 43, a water supply control unit 44, a heating control unit 45, a mixing control unit 46, and a discharge control unit 47 are connected to the data bus of the microprocessor CPU. Incidentally, in order to realize the control in the control unit 18, a control bus and an address bus are required in addition to the data bus. However, in order to avoid complication, the drawing shows the control bus and the address bus. Does not show interfaces.

  The schedule management unit 43, the water supply control unit 44, the heating control unit 45, the mixing control unit 46, and the discharge control unit 47 are each configured by software, but may be configured by hardware or combined with hardware. It may be configured.

  The schedule table 42 is means for storing schedule data set by the operation panel 11. The schedule table 42 is added to the date and time (generation completion date and time), the generation amount, and water of the enzyme water Wx. The amount of enzyme preparation X is stored. The schedule management unit 43 refers to the data stored in the schedule table 42 and generates the enzyme water Wx by controlling the water supply control unit 44, the heating control unit 45, the mixing control unit 46, and the discharge control unit 47, respectively. Execute the process.

  The water supply control unit 44 opens the water supply electromagnetic valve 22 to supply water to the generation tank T, and closes the water supply electromagnetic valve 22 based on a detection signal from the liquid level sensor 15 after the water supply. Control is performed to store a set amount of water in the production tank T.

  The heating control unit 45 includes a temperature increase control means 45A for heating the liquid temperature in the generation tank T until it reaches the target temperature region Ta, and after this temperature increase, the liquid temperature in the generation tank T is set to the target temperature region. It is comprised with the temperature control means 45B maintained to Ta.

  As shown in FIG. 7, the ideal temperature for producing the enzyme in the production tank T is about 40 ° C., the control target temperature Tx of the heating control unit 45 is set to 40 ° C., and this control target temperature Tx is set to A target temperature region Ta is formed on the low temperature side as a reference. Further, the non-driving region Ts is set in the temperature region near the control target temperature Tx in the target temperature region Ta, and the proportional control region Tp is set on the lower temperature side.

  The mixing controller 46 supplies the set amount of the enzyme preparation X to the water stored in the production tank T by driving the electric motor 34 in a form in which the counting signal is fed back by the operation sensor 37. To produce a solution with a target mixing ratio.

  The discharge control unit 47 opens the discharge electromagnetic valve 39 for a set time after generating the enzyme water Wx in the generation tank T by continuing the temperature control of the heating control unit 45 for about 20 minutes. By maintaining the state, the enzyme water Wx in the production tank T is discharged from the discharge pipe 38.

[Control form]
When the enzyme water Wx is generated by the control unit 18, the temperature of the water is increased by temperature increase control after supplying water to the generation tank T. When the temperature increase is completed, the control unit 18 shifts to temperature control. By supplying the enzyme preparation X, the control form is set so that the production can be performed in a state where adverse effects on microorganisms and enzymes contained in the enzyme preparation X are excluded. Such a control mode can be shown as in the flowchart of FIG.

  That is, the process of acquiring information from the operation panel 11 is continued until it is determined that the start time set by the initial setting process has been reached (steps # 01 and # 02).

  In this initial setting process (# 01 step), the schedule table 42 is generated based on the operation of the operation panel 11. As described above, the schedule table 42 stores the date and time when the enzyme water Wx is generated (generation completion date and time), the generation amount, the amount of the enzyme preparation X added to the water, and the like. The schedule management unit 43 refers to the schedule table 42 to set the generation start time for starting the generation of the enzyme water Wx in the enzyme water generator A, and the mixing of the enzyme water Wx generated in the enzyme water generator A The rate is set, and the target discharge amount generated and discharged by the enzyme water generator A is set. When the schedule management unit 43 determines that the generation start time has been reached based on information from the calendar unit (not shown), the process proceeds to generation control (# 100 step).

  This water supply control (# 100 step) is set in the form of a subroutine. As shown in the flowchart of FIG. 6, the water supply control unit 44 first executes the water supply control (# 101 step). In this water supply control, a control sequence is set so that the water supply electromagnetic valve 22 is opened to start water supply, and when the liquid level sensor 15 reaches the detection state, the water supply electromagnetic valve 22 is closed. .

  Next, the temperature raising control means 45A constituting the heating control unit 45 executes the temperature raising control (Step # 102). In this temperature increase control, the maximum power that can be supplied to the heater 16 is supplied via the power control circuit 16S. As shown in FIG. 8, the power control circuit 16S adjusts the power supply by so-called PWM (Pulse-Width Modulation) control, which can adjust the energization time Q (ON time) in a cycle C that is a relatively short interval. When the maximum power is supplied, the duty ratio (duty cycle) is set to 100%.

  When it is determined from the measured value of the temperature sensor 17 that the liquid temperature in the generation tank T has reached the target temperature region Ta by executing this temperature increase control, by shifting to the temperature control, The temperature control means 45B executes control, and further, the mixing control unit 46 performs mixing control (# 103 to # 105 steps).

  In the temperature control by the temperature control means 45B, when the liquid temperature measured by the temperature sensor 17 is in the non-driving area Ts, the power supply to the heater 16 is stopped and the measured liquid temperature is in the proportional control area. When it is at Tp, corresponding to the deviation between the liquid temperature and the control target temperature Tx, proportional control is executed to supply larger electric power as the deviation is larger. Therefore, when this proportional control is performed, the larger the deviation is, the longer the energization time Q of the duty ratio of the power control circuit 16S is set to supply a larger amount of power to the heater 16, and when the deviation becomes smaller, the energization is performed. The time Q is set short, and smaller electric power is supplied to the heater 16. In a situation where the liquid temperature measured by the temperature sensor 17 is in the proportional control region Tp, it is not always necessary to perform proportional control, and for example, PID control may be performed.

  In the mixing control (step # 105), the constant volume pump KP is operated by the driving force of the electric motor 34 to suck the enzyme preparation X stored in the bottle 8 through the suction tube 25 and from the supply tube 26 to the nozzle. 27 is supplied to the production tank T in a form of dropping. In this supply, the target number of times of operation of the constant capacity pump KP is counted by the operation sensor 37 to supply a target amount of the enzyme preparation X to obtain a target mixing rate.

  Even after the mixture control is executed in this way, the temperature control is continuously performed. When it is determined that the temperature control has continued for the set time (time-up is determined), the temperature control is stopped. Then, by opening the discharge electromagnetic valve 39, discharge control is performed in which the enzyme water Wx generated in the generation tank T is sent from the discharge pipe 38 to the discharge hose 7 and discharged to the stock tank B (# 106 to ##). 107 steps). In this discharge control, control for setting the discharge electromagnetic valve 39 to the open state for a time sufficient for discharging the enzyme water Wx from the production tank T is executed.

  Further, the processes of steps # 100 and # 101 to # 105 are processes for generating enzyme water Wx, and when executing each step of the process when executing this series of processes, Control to turn on the corresponding monitor lamp 54 among the plurality of monitor lamps 54 is performed.

  In this way, the generation process is executed as many times as necessary to obtain the set generation amount, and this control is repeatedly executed unless the control unit 18 is reset (# 03, Step # 04). Further, when the control unit 18 is reset, all controls are stopped (steps # 04 and # 05).

[Function of enzyme water supply system]
As described above, in the enzyme water supply system of the present invention, when the enzyme water Wx is generated by the enzyme water generator A, after the water is supplied to the generation tank T, the liquid temperature in the generation tank T is within the target temperature range. By performing the temperature rise control in such a manner that the maximum electric power is supplied to the heater 16 until Ta is reached, the temperature rise in a short time is enabled. Next, after the liquid temperature in the production tank T reaches the target temperature region Ta due to this temperature increase, the power supplied to the heater 16 is reduced by shifting to temperature control, and the heater is reduced by this power reduction. The surface temperature of the heater 16 is thus reduced. Thus, by performing the mixing control for supplying the enzyme preparation X in a state where the surface temperature of the heater 16 is reduced, for example, the surface of the high temperature heater 16 is mixed with the enzyme preparation X. It eliminates adverse effects such as the death of the contained microorganisms upon contact and the deactivation of the enzyme, thereby enabling the production of enzyme water Wx with high cleaning performance. In particular, since it is necessary to supply the enzyme preparation after confirming that the temperature control has shifted from the temperature control to the temperature control, for example, when the heater control system is out of order, the temperature increases continuously. In the situation where the water temperature is high, the enzyme preparation is not supplied, and the adverse effect on the enzyme preparation can be reliably avoided.

Perspective view of enzyme water supply system Longitudinal front view of enzyme water generator Diagram showing the outline of the control system of the enzyme water supply system Block diagram of control system Flow chart showing the control mode when generating enzyme water Flow chart of generation process Diagram showing temperature range Figure showing duty ratio

Explanation of symbols

16 Heater 17 Temperature sensor 17S Power control circuit 18 Control unit J Water supply mechanism K Enzyme preparation supply mechanism T Production tank Ta Target temperature range Tx Control target temperature Wx Enzyme water X Enzyme preparation

Claims (3)

Enzymatic water equipped with a control unit that generates water by supplying water to the production tank by the water supply mechanism and supplying the enzyme preparation by the enzyme preparation supply mechanism, and applying heat to the heater to maintain the set temperature. A generating device,
The control unit includes a temperature sensor for measuring the liquid temperature in the generation tank, and the control unit increases the liquid temperature in the generation tank by supplying power to the heater after storing water in the generation tank by the water supply mechanism. After the temperature sensor detects that the temperature has reached the target temperature range by the temperature increase control, the power value supplied to the heater is lowered from the power value in the temperature increase control to achieve the target temperature range. The apparatus for generating an enzyme water is shifted to temperature control to be maintained at the same time, and the control sequence is set so as to supply the enzyme preparation by controlling the enzyme preparation supply mechanism at the time of the transition. The target temperature region is formed on the low temperature side with reference to the control target temperature,
In the temperature control, a control mode of the temperature control is performed such that proportional control is performed to supply power to the heater in proportion to the deviation between the liquid temperature in the generation tank measured by the temperature sensor and the control target temperature. The enzyme water production | generation apparatus of Claim 1 with which is set.   In addition to a power control circuit that adjusts the power supplied to the heater by setting the duty ratio, the duty ratio is set to a maximum value in the temperature increase control, and the liquid measured by the temperature sensor in the temperature control. The enzyme water generating apparatus according to claim 1, wherein a control mode of the control unit is set so as to set a duty ratio based on a temperature value.

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