JP2006345791A - Device for activation of liquid enzyme - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reliable device for activation of liquid enzyme reproducing the activated enzyme water with excellent accuracy by controlling supplying liquid volume. <P>SOLUTION: The device comprises an activating tank 105 for mixing the liquid enzyme preparation supplied from a liquid enzyme preparation storing tank 101 with water and activating/storing the enzyme by controlling the temperature of the mixture, and liquid enzyme preparation detecting means 106a, 106b on a conveying path for conveying the liquid enzyme preparation from the liquid enzyme preparation storing tank 101 to the activating tank 105, and the supplying volume of the liquid enzyme preparation into the activating tank 105 is controlled based on the detecting signals from the liquid enzyme preparation detecting means 106a, 106b. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a liquid enzyme activation device, and more specifically, to a liquid enzyme activation device that supplies a stable concentration of activated enzyme water by controlling the amount of liquid enzyme preparation supplied.

  Animal or vegetable waste oil and various proteins generated in kitchens of restaurants and restaurants are difficult to remove sufficiently even if they are cleaned with a detergent. In addition, when these waste oils and proteins accumulate in the drains and grease traps, they cause a bad odor. Furthermore, the use of a large amount of detergent is one of the causes of water pollution in recent years and has a problem in terms of environment. Therefore, water containing activated microorganisms and enzymes (activated microbial water / activated enzyme water) so as to easily decompose waste oil and proteins is generated, and the activated microbial water and activated enzyme water are used for the kitchen floor and Technology for decomposing waste oil and protein in drains and grease traps has been developed.

  As an apparatus for generating such activated microbial water or activated enzyme water, a preparation storage tank for storing a liquid microbial preparation or a liquid enzyme preparation, and a preparation and water supplied from the preparation storage tank for storing microorganisms or An activation tank for activating the enzyme, a heating device for heating the liquid in the activation tank to activate the microorganisms or the enzyme, and a liquid discharge device for discharging the liquid from the activation tank, When the activation tank is filled with liquid, supply of the preparation and water is stopped, the liquid in the activation tank is heated, or the activated microorganism or enzyme liquid is discharged and then the activation tank is filled. In order to additionally supply the preparation and water, it has a liquid level detection device that detects the liquid level in the activation tank and a control circuit that outputs an operation control signal. This control circuit detects the liquid level. An operation control signal is output based on the detection signal from the device and input setting information input in advance, supply of the preparation from the preparation storage tank to the activation tank, supply of water to the activation tank, and activation Some control the discharge of liquid from the tank and the operation of the heating device.

In addition, the amount of animal and vegetable waste oils and various proteins in the kitchen environment and the state of contamination vary, so activated microbial water and activated enzyme water at concentrations suitable for the kitchen environment in which the equipment is used. Therefore, it is necessary to adjust the concentration of the activated microbial water and the activated enzyme water by controlling the means for supplying the preparation to the activation tank in the apparatus. Furthermore, in order for the activated microbial water and the activated enzyme water to exhibit a stable purification effect, the concentration needs to be adjusted with high accuracy. In this type of apparatus, as a means for supplying the preparation to the activation tank in the apparatus, the preparation is sucked and supplied using a pump (for example, Patent Document 1), or the preparation is supplied using an infusion valve. There is one that is supplied dropwise (for example, Patent Document 2).
JP 2004-242673 A JP 2000-325938 A

  However, in the conventional configuration, a pump is used as a means for supplying the liquid microbial preparation or liquid enzyme preparation to the activation tank in the apparatus, and the liquid microbial preparation or liquid enzyme preparation is supplied only by controlling the operation time of the pump. Since the concentration of the activated microbial water and the activated enzyme water is adjusted by determining the amount, the concentration of the activated microbial water and the activated enzyme water varies depending on the production cycle, and a stable purification effect is obtained. There was no problem.

  In addition, in a configuration in which the infusion amount is made variable by using an infusion valve as means for supplying the liquid microbial preparation or the liquid enzyme preparation to the activation tank in the apparatus, a method for controlling the infusion amount is disclosed. In addition, since there is no description about a detection device for detecting the amount of infusion, it is assumed that the concentration of activated microbial water or activated enzyme water differs for each production cycle, and a stable purification effect cannot be obtained. The

  As described above, in the conventional microbial enzyme activation device, the concentration of the activated microbial water and the activated enzyme water varies depending on the production cycle, and the production concentration of the activated microbial water and the activated enzyme water is low in reliability. It had the problem that.

  The present invention solves the above-mentioned conventional problems, and has a liquid enzyme preparation detection means, and the control circuit controls the operation of the liquid enzyme preparation supply means based on the detection signal to determine the supply liquid amount. An object of the present invention is to provide a highly reliable liquid enzyme activation device that accurately reproduces the concentration of activated enzyme water.

  In order to solve the conventional problems, the liquid enzyme activation device of the present invention includes a liquid enzyme preparation storage tank for storing a liquid enzyme preparation, and the liquid enzyme preparation and water supplied from the liquid enzyme preparation storage tank are mixed. And an activation tank for activating and storing the enzyme by controlling temperature, a preparation supply means for supplying the liquid enzyme preparation from the liquid enzyme preparation storage tank into the activation tank, and the water in the activation tank. Water supply means for supplying water, heating means for heating the liquid in the activation tank, liquid temperature monitoring means for monitoring the liquid temperature in the activation tank, and the height of the liquid level in the activation tank. A liquid level detecting device for detecting, a liquid discharging means for discharging the liquid in the activation tank from the activation tank, and transferring the liquid enzyme preparation from the liquid enzyme preparation storage tank into the activation tank. Comprising a liquid enzyme preparations detecting means for detecting the liquid enzyme formulation feed path, and a control circuit for controlling the liquid temperature and liquid amount of the liquid enzyme preparation of the activation tank.

  According to the liquid enzyme activation device of the present invention, there is provided a liquid enzyme activation device capable of generating activated enzyme water having a stable purification effect, the concentration of which does not vary greatly from one generation cycle to another. I can do it.

  Embodiments of the liquid enzyme activation device of the present invention will be described below in detail with reference to the drawings.

  FIG. 1 shows a schematic diagram of a liquid enzyme activation device in Example 1 of the present invention.

  In FIG. 1, the liquid enzyme preparation in the liquid enzyme preparation storage tank 101 is stored in the liquid enzyme preparation storage by the air supplied through the pipe 103 by the operation of the air pump 102 by the operation control signal output from the control circuit 127 described later. It flows into the tank 101 and is supplied into the activation tank 105 via the transparent tube 104 as the internal pressure in the liquid enzyme preparation storage tank 101 increases. Further, the first liquid enzyme preparation detection device 106a and the second liquid enzyme preparation detection device 106b installed in the transparent tube 104 detect the liquid enzyme preparation transferred in the transparent tube 104, and the detection signal is sent to the control circuit 127. A photoelectric sensor or the like. This photoelectric sensor has been transported through the transparent tube 104 by detecting the difference in the amount of transmitted light or the amount of reflected light when the liquid enzyme preparation is not present in the transparent tube 104 and when the liquid enzyme preparation is present. Detect the interface between the top of the liquid enzyme preparation and the air.

Further, in order to prevent the liquid enzyme preparation of a predetermined amount or more from being sent from the liquid enzyme preparation storage tank 101, the pressure remaining in the liquid enzyme preparation storage tank 101 after the predetermined liquid enzyme preparation has been sent is The residual pressure release electromagnetic valve 107 is opened by the operation control signal output from the control circuit 127.
The activation tank 105 includes a liquid enzyme preparation supplied from the liquid enzyme preparation storage tank 101, water supplied from a water source (not shown) via a water supply pipe 108, a water supply valve 109 and a water supply pipe 110, a hot water supply pipe 111, hot water. This tank stores hot water supplied from a hot water source (not shown) via a supply valve 112 and a hot water supply pipe 113, and makes the liquid enzyme easy to decompose waste oil and protein.

  The water supply valve 109 and the hot water supply valve 112 are electromagnetic valves and have a structure that is opened and closed by an operation control signal output from the control circuit 127. Further, a water flow sensor 114 for measuring the flow rate of the water supplied from the water supply valve 109 and sending a signal to the control circuit 127 is attached downstream of the water supply valve 109, and downstream of the hot water supply valve 112. A hot water flow sensor 115 that measures the flow rate of hot water supplied from the hot water supply valve 112 and sends a signal to the control circuit 127 is attached.

  The activation tank 105 is connected to a liquid discharge pump 117 via a discharge pipe 116. The liquid discharge pump 117 is operated by an operation control signal output from the control circuit 127, and is discharged to supply the liquid (activated enzyme water) 119 in the activation tank 105 to an external tank (not shown) via the drain pipe 118. It has a possible structure.

  The activation tank 105 is provided with a temperature sensor 120, a heater 121 constituting a heating device, a liquid level detection device 122, and a stirring device for stirring the liquid 119 in the activation tank 105. The stirrer is composed of a drive motor 123 and a stirrer 124. When the drive motor 123 is actuated by an operation control signal output from the control circuit 127, the stirrer 124 rotates to stir the liquid 119. Promotes enzyme activation.

  The temperature sensor 120 is a sensor composed of a thermocouple or the like that measures the temperature of the liquid 119 in the activation tank 105 and sends a signal to the control circuit 127. The heater 121 is a rod-shaped electric heater disposed in the liquid 119 in the activation tank 105, and operates according to an operation control signal output from the control circuit 127 to activate the enzyme to heat the liquid 119. . The liquid level detecting device 122 is, for example, a float type liquid level detecting device, which detects the liquid level in the activation tank 105 above the activation tank 105 and sends a detection signal to the control circuit 127. is there. Furthermore, the activation tank 105 has a structure in which an overflow drain hole 125 is disposed above the liquid, so that the liquid 119 exceeding the allowable volume of the activation tank 105 is not stored. The heat insulating material 126 is installed to keep the temperature of the liquid 119 in the activation tank 105 by covering the outer periphery of the activation tank 105.

  About the liquid enzyme activation apparatus comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  The device stores in advance information on the use of a water heater, which is necessary information for the device, the amount and concentration of activated enzyme water, and the temperature and waiting time suitable for making the enzyme easy to decompose waste oil and protein. ing. Here, the case where a water heater is used first will be described, and then the case where a water heater is not used will be described. First, the case where a water heater is used will be described.

  As shown in the flowchart of FIG. 2, when the operation button for starting the generation process is pressed, the initial process is started by the operation control signal output from the control circuit 127 (step 1). The initial process is a process for confirming the initial normal state of the apparatus. The water supply valve 109, the hot water supply valve 112, the air pump 102, the residual pressure release electromagnetic valve 107, the liquid discharge pump 117, and the drive motor 123, which are main components of the apparatus. Such as pre-operation confirmation, etc., drainage treatment for a certain period of time assuming that the activated enzyme water remains in the previous generation treatment. Next, the use of the water heater is determined based on the water heater use setting stored in advance in the apparatus (step 2). When the hot water heater is used, the hot water supply valve 112 is opened by the operation control signal output from the control circuit 127, and hot water is supplied from the hot water supply pipe 113 into the activation tank 105 (step 3).

  While the hot water supply valve 112 is opened and hot water is being supplied into the activation tank 105 from the hot water supply pipe 113, the hot water flow sensor 115 always monitors the amount of hot water supplied into the activation tank 105, When the amount of hot water supplied into the liquefaction tank 105 reaches a predetermined amount, the hot water supply valve 112 is closed by an operation control signal output from the control circuit 127 and hot water supply is stopped (step 4).

  Next, according to an operation control signal output from the control circuit 127, the water supply valve 109 is opened and water is supplied from the water supply pipe 110 into the activation tank 105. When the drive motor 123 is driven by an operation control signal output from the control circuit 127 in parallel with the supply of water, the stirring rod 124 rotates to stir the liquid in the activation tank 105 (step 5). While water is being supplied from the water supply pipe 110 into the activation tank 105, the temperature of the liquid 119 in the activation tank 105 is always monitored by the temperature sensor 120, and the liquid 119 in the activation tank 105 is monitored. The operation output from the control circuit 127 when the temperature reaches a preset temperature (in this example, 40 ± 5 ° C., which is a temperature suitable for making the enzyme easy to decompose waste oil or protein) (step 6). The water supply valve 109 is closed by the control signal to stop water supply (step 7).

  Next, the air pump 102 is actuated by an operation control signal output from the control circuit 127 in a state where the residual pressure release valve 107 is closed, and air is supplied to the liquid enzyme preparation storage tank 101 via the pipe 103 to be liquid. As the pressure in the enzyme preparation storage tank 101 increases, the liquid enzyme preparation is supplied into the activation tank 105 through the transparent tube 104 (step 8). Details of the supply will be described. When the air pump 102 is activated and the liquid enzyme preparation begins to be transferred through the transparent tube 104, the first liquid enzyme preparation detection device 106a first detects the interface between the liquid enzyme preparation and air and sends the detection signal to the control circuit 127. The control circuit 127 records the reception time. Subsequently, when the liquid enzyme preparation is further transferred, the second liquid enzyme preparation detection apparatus 106b detects the same interface as the interface detected by the first liquid enzyme preparation detection apparatus 106a and transmits the detection signal to the control circuit 127. Then, the control circuit 127 records the reception time.

  Here, the control circuit 127 includes a unit time determined from the difference between the output reception time from the first liquid enzyme preparation detection device and the output reception time from the second liquid enzyme preparation detection device, the first liquid enzyme preparation detection device, and the first liquid enzyme preparation detection device. The flow rate of the liquid enzyme preparation in the transparent tube 104 is calculated from the distance between the two liquid enzyme preparation detection devices and the cross-sectional area of the transparent tube 104 that can be measured in advance, and the concentration of the activated enzyme water set in advance is calculated. The supply time of the liquid enzyme preparation necessary for satisfaction is determined. Further, the control circuit 127 outputs an operation control signal and stops the air pump 102 when the supply time determined as described above has elapsed. The residual pressure release valve 107 is opened by an operation control signal output from the control circuit 127 in parallel with the stop of the air pump 102, and the residual pressure (gauge pressure 2.2 kPa) in the liquid enzyme preparation storage tank 101 is returned to the atmosphere. By opening, an excess liquid enzyme preparation is prevented from being supplied into the activation tank 105 (step 9). Through the steps from the start of supply of the liquid enzyme preparation to the stop of supply (step 8 to step 9), the supply amount of the liquid enzyme preparation is accurately controlled.

  Next, the liquid 119 in the activation tank 105 is agitated while the standby time necessary for the enzyme set in the apparatus to easily decompose (ie, activate) the waste oil and protein is passed. When the standby time reaches the set time (step 10), the drive motor 123 is stopped by the operation control signal output from the control circuit 127 to stop the stirring of the liquid 119 in the activation tank 105 (step 10). 11). By such a series of operations, a liquid (activated enzyme water) 119 containing an activated enzyme is generated in the activation tank 105.

  Next, the liquid discharge pump 117 is activated by the operation control signal output from the control circuit 127, and the liquid (activated enzyme water) 119 in the activation tank 105 is discharged to the external tank (step 12). When the discharge amount does not reach the preset generation amount, the system for generating the activated enzyme water is repeated again by the operation control signal output from the control circuit 127 (step 1). When the discharge amount has reached the preset generation amount, the system for generating the activated enzyme water is terminated by the operation control signal output from the control circuit 127 (step 13).

  Next, the case where a water heater is not used will be described. When the operation button for starting the generation process is pressed, the initial process is started by the operation control signal output from the control circuit 127 (step 1). The initial process is a process for confirming the initial normal state of the apparatus. The water supply valve 109, the hot water supply valve 112, the air pump 102, the residual pressure release electromagnetic valve 107, the liquid discharge pump 117, and the drive motor 123, which are main components of the apparatus. Such as pre-operation confirmation, etc., drainage treatment for a certain period of time assuming that the activated enzyme water remains in the previous generation treatment. Next, it is determined whether or not the water heater is not used based on the setting not to use the water heater previously stored in the apparatus (step 2). Subsequently, when the water heater is not used, the water supply valve 109 is opened by the operation control signal output from the control circuit 127, and water is supplied from the water supply pipe 110 into the activation tank 105 (step 14). While the water supply valve 109 is opened and water is supplied from the water supply pipe 110 into the activation tank 105, the water flow rate sensor 114 always monitors the amount of water supplied into the activation tank 105, and When the amount of water supplied into the liquefaction tank 105 reaches a predetermined amount, the water supply valve 109 is closed by the operation control signal output from the control circuit 127 and the water supply is stopped (step 15).

  Next, the heater 121 is actuated by an operation control signal output from the control circuit 127, and the liquid 119 in the activation tank 105 is heated. When the drive motor 123 is driven by an operation control signal output from the control circuit 127 in parallel with the heating of the liquid 119, the stirring rod 124 rotates to stir the liquid 119 in the activation tank 105 (step 16). While the heater 121 is activated and the drive motor 123 is driven to stir the liquid 119 in the activation tank 105, the temperature of the liquid in the activation tank 105 is always monitored by the temperature sensor 120. The liquid temperature of the liquid 119 in the gasification tank 105 becomes a preset temperature (in this example, 40 ± 5 ° C., which is a temperature suitable for making the enzyme easy to decompose waste oil or protein) (step 17). The operation of the heater 121 is stopped by the operation control signal output from the control circuit 127, and the heating is stopped (step 18).

  In general, when water containing enzymes and microorganisms is heated with a heater, it is necessary to control the surface temperature of the heater so that it does not reach the temperature at which the enzymes and microorganisms are killed. This complicates the apparatus, such as a heater surface temperature monitoring means, a power supply device for the heater, and a control circuit for the shut-off device. Therefore, in this apparatus, before the liquid enzyme preparation is supplied into the activation tank 105, the liquid 119 in the activation tank 105 is heated by the heater 121, and the liquid enzyme preparation is supplied into the activation tank 105. Is not heated by the heater 121.

  Thereafter, the preparation supply processing step of Step 8 is performed, and the processing from Step 8 to Step 13 is the same as that in the case of using the water heater, and therefore will be omitted.

  As described above, in the first embodiment, the method of supplying the liquid enzyme preparation from the liquid enzyme preparation storage tank 101 to the activation tank 105 operates the air pump 102 with the residual pressure release valve 107 closed. A case where air is supplied to the liquid enzyme preparation storage tank 101 via the pipe 103 is described. When air is supplied to the liquid enzyme preparation storage tank 101, the pressure in the liquid enzyme preparation storage tank 101 increases and the liquid enzyme preparation starts to be transferred through the transparent tube 104. Then, first, the first liquid enzyme preparation detection device 106a detects a change in the amount of transmitted light to detect the interface between the liquid enzyme preparation and the air that has been transferred through the transparent tube 104, and the detection signal is sent to the control circuit 127. The control circuit 127 records the reception time. Subsequently, when the liquid enzyme preparation is further transferred, the second liquid enzyme preparation detection device 106b detects the same interface as that detected by the first liquid enzyme preparation detection device 106a and controls the detection signal based on the same principle. The data is transmitted to the circuit 127, and the control circuit 127 records the reception time.

  Here, the control circuit 127 includes the unit time determined from the difference between the output reception time from the first liquid enzyme preparation detection device and the output reception time from the second liquid enzyme preparation detection device, the first liquid enzyme preparation detection device 106a, The flow rate of the liquid enzyme preparation in the transparent tube 104 is calculated from the installation distance of the second liquid enzyme preparation detection apparatus 106b (about 30 mm in this apparatus) and the cross-sectional area of the transparent tube 104 that can be measured in advance. The supply time of the liquid enzyme preparation required to satisfy the concentration of the activated enzyme water is determined. Further, the control circuit 127 outputs an operation control signal and stops the air pump 102 when the supply time determined as described above has elapsed. Further, the residual pressure release valve 107 is opened by an operation control signal output from the control circuit 127 in parallel with the stop of the air pump 102, and the liquid enzyme preparation storage tank 101 still remains after the predetermined liquid enzyme preparation has been sent. The liquid required for a predetermined concentration without bringing the air pump 102 and the liquid enzyme preparation into contact with each other is configured such that the excess liquid enzyme preparation is not supplied into the activation tank 105 by the released pressure being released to the atmosphere. It is possible to provide a highly reliable liquid enzyme activation device that can accurately supply the enzyme preparation into the activation tank 105 and accurately control the concentration of the activated enzyme water.

  Further, FIG. 3 shows that, for example, the liquid enzyme preparation storage tank 101 of the first embodiment is made of a material that cannot withstand the increase in pressure in the liquid enzyme preparation storage tank 101 and easily changes its tank volume. The air pump 102 is operated with the residual pressure release valve 107 closed so that the liquid enzyme preparation can be supplied with high accuracy even when the liquid enzyme preparation is sold (for example, when the liquid enzyme preparation is sold, such as a plastic pack or thin plastic tank). Then, air is directly supplied to the liquid enzyme preparation storage tank 101 through the pipe 103 to increase the pressure in the liquid enzyme preparation storage tank 101, so that the liquid enzyme preparation is supplied into the activation tank 105 through the transparent tube 104. In the configuration of the first embodiment, the air pump 102 is operated in a state where the residual pressure release valve 107 is closed, and the air is liquidated through the pipe 103. The raw material storage tank 101 is stored and sealed, and the pressure in the pressure tank 128 is raised by supplying the pressure tank 128 made of a material whose tank volume does not easily change due to an increase in internal pressure. Thus, by adopting a configuration in which the liquid enzyme preparation is supplied into the activation tank 105 through the transparent tube 104, the liquid enzyme preparation storage tank 101 is not affected by changes in the capacity of the tank, which is reliable. It is possible to provide a more reliable apparatus that can pressurize and stabilize the amount of liquid enzyme preparation to be transferred.

  The liquid enzyme activation device according to the present invention accurately generates activated enzyme water at a concentration required according to the contamination status of the kitchen, and requires a device that realizes a stable purification effect, Suitable for use in kitchens such as canteens.

Schematic configuration diagram of the liquid enzyme activation device of the present invention The flowchart explaining operation | movement of the liquid enzyme activation apparatus of this invention The other schematic block diagram of the liquid enzyme activation apparatus of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 Liquid enzyme preparation storage tank 102 Air pump 103 Piping 104 Transparent tube 105 Activation tank 106a First liquid enzyme preparation detection apparatus 106b Second liquid enzyme preparation detection apparatus 107 Residual pressure release solenoid valve 108 Water supply pipe 109 Water supply valve 110 Water supply pipe 111 Hot water supply pipe 112 Hot water supply valve 113 Hot water supply pipe 114 Water flow sensor 115 Hot water flow sensor 116 Discharge pipe 117 Liquid discharge pump 118 Drain pipe 119 Liquid (activated enzyme water)
DESCRIPTION OF SYMBOLS 120 Temperature sensor 121 Heater 122 Liquid level detection apparatus 123 Drive motor 124 Stirring rod 125 Overflow drain hole 126 Heat insulation material 127 Control circuit 128 Pressure tank

Claims (6)

A liquid enzyme preparation storage tank for storing the liquid enzyme preparation;
An activation tank that mixes the liquid enzyme preparation and water supplied from the liquid enzyme preparation storage tank and controls the temperature to activate and store the enzyme;
A preparation supply means for supplying the liquid enzyme preparation from the liquid enzyme preparation storage tank into the activation tank;
Water supply means for supplying the water to the activation tank;
Heating means for heating the liquid in the activation tank;
Liquid temperature monitoring means for monitoring the liquid temperature in the activation tank;
A liquid level detecting device for detecting the height of the liquid level in the activation tank;
Liquid discharging means for discharging the liquid in the activation tank from the activation tank;
A liquid enzyme preparation detecting means for detecting the liquid enzyme preparation in a transfer path for transferring the liquid enzyme preparation from the liquid enzyme preparation storage tank into the activation tank;
A control circuit for controlling the temperature and amount of the liquid enzyme preparation in the activation tank;
A liquid enzyme activation device comprising: The said control circuit is a liquid enzyme activation apparatus which controls the said formulation supply means, water supply means, a heating means, and a liquid discharge means based on the output signal from the said liquid temperature monitoring means and a liquid level detection apparatus at least. The preparation supply means includes the liquid enzyme preparation storage tank, an air pump that supplies air to the liquid enzyme preparation storage tank, and a residual pressure release electromagnetic valve that releases residual pressure in the liquid enzyme preparation storage tank, Air is supplied to the liquid enzyme preparation storage tank by the air pump to increase the pressure in the liquid enzyme preparation storage tank, and the liquid enzyme preparation stored in the liquid enzyme preparation storage tank is 2. The liquid enzyme activation according to claim 1, wherein the liquid enzyme preparation is supplied to the activation tank, and after supplying a predetermined amount of the liquid enzyme preparation, the residual pressure release electromagnetic valve is operated to release the residual pressure in the liquid enzyme preparation storage tank. apparatus. The preparation supply means includes the liquid enzyme preparation storage tank, a pressure tank that houses and seals the liquid enzyme preparation storage tank, an air pump that supplies air to the pressure tank, and a residual pressure release in the pressure tank. A liquid in the liquid enzyme preparation storage tank that is stored in the pressure tank by supplying air to the pressure tank by the air pump to increase the pressure in the pressure tank. The enzyme preparation is supplied to the activation tank via a tube, and after supplying a predetermined amount of the liquid enzyme preparation, the residual pressure release solenoid valve is operated to release the residual pressure in the pressure tank. Liquid enzyme activation device. The liquid enzyme activation device according to claim 1, wherein the liquid enzyme preparation detection unit detects the liquid enzyme preparation by irradiating light into the transfer path made of a light transmissive material and detecting the transmitted light. The liquid enzyme preparation detection means has first and second liquid enzyme preparation detection means from the liquid enzyme storage tank toward the activation tank, and the first and second detection means receive the liquid enzyme preparation. The liquid enzyme activation device according to claim 1, wherein the flow rate of the liquid enzyme preparation is calculated based on a time difference to be detected, a distance between the first and second detection means, and a cross-sectional area of the transfer path.

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