JP2003029846A - Flow rate adjusting unit and beverage supplying device equipped with flow rate adjusting unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flow rate adjusting unit capable of making an outlet flow rate almost constant even when the fluctuation of an inlet pressure is generated and a beverage supplying device capable of always supplying beverage whose supply rate and dilution ratio change only a little and the dilution ratio is appropriate. SOLUTION: This flow rate adjusting unit 1 is constituted of an inlet channel 8 into which fluid flows, an outlet channel 6 from which fluid flows out, a flow washer 2 which is constituted of an elastic member such as silicon rubber, which is arranged between the inlet channel 8 and the outlet channel 6 and which is equipped with a circular hole 2a for adjusting the pressure of the fluid moving from the inlet channel 8 to the outlet channel 6, and a register washer 3 arranged adjacently to the outlet channel 6 side of the flow washer 2 so as to communicate with the circular hole 2a through a circular hole 3a whose diameter is smaller than that of the circular hole 2a. This flow rate adjusting unit 1 is arranged in diluted water ducts 34, 36, and 38 and carbonated water duct 44 of a beverage dispenser 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flow rate regulator and a beverage supply device provided with a flow rate regulator, and more particularly, to a flow rate regulator capable of making an outlet flow rate substantially constant even if inlet pressure fluctuation occurs, and The present invention relates to a beverage supply device equipped with a flow rate adjuster.

[0002]

2. Description of the Related Art Beverage dispensers and cup-type vending machines sell drinks prepared by diluting a concentrated syrup-like concentrated raw material of a beverage with a diluting liquid such as diluting water or carbonated water at a predetermined ratio. . In order to make the dilution ratio appropriate, in beverage dispensers and cup-type vending machines, a flow rate regulator is provided in the supply pipelines for the concentrated raw material and the diluting liquid so that they can be mixed while controlling the respective flow rates. There is.

As such a flow rate adjuster, a flow washer having an appropriate thickness and made of an elastic member having a circular hole in the central portion is arranged in the flow passage, and the flow washer is deformed in response to an increase in pressure in the inlet flow passage. Therefore, it is known that the flow rate of the fluid passing through the circular hole is made substantially constant. In such a conventional technique, it is general that the diameter of the flow passage located on the outlet side of the flow washer is set larger than the diameter of the circular hole of the flow washer. This is because the flow washer is easily deformed toward the flow path on the outlet side when the pressure is increased.

FIG. 6 shows a side sectional view of the construction of a conventional flow rate regulator. The flow rate adjuster 9 is composed of a pipe joint 7 provided with an inlet passage 8, a flow washer case 10 having a recess 11 that is connected to the pipe joint 7, and a flow washer 2 attached to the bottom of the recess 11. The flow washer 2 is provided with a circular hole 2a in the center thereof, and the circular hole 2a communicates with an outlet passage 12 formed by penetrating the center of the flow washer case 10 in the axial direction. The outlet passage 12 has an outlet passage 12a having a diameter slightly larger than the diameter of the circular hole 2a,
The outlet flow passage 12a has a diameter larger than that of the outlet flow passage 12a for reducing resistance when the fluid flows through the outlet flow passage 12, and is connected to the circular hole 2a of the flow washer 2 at the portion of the outlet flow passage 12a. There is.

FIG. 7 is an enlarged view of a main part of the flow rate regulator 9 shown in FIG. 6, in which the flow washer 2 is deformed toward the outlet flow passage 12a side in response to an increase in pressure on the inlet flow passage 8 side. A part of the flow washer 2 penetrates into the outlet passage 12a to reduce the diameter of the circular hole 2a, so that the flow rate of the fluid passing through the circular hole 2a becomes substantially constant even if the pressure on the inlet passage 8 side increases. It shows that

[0006] Fig. 8 shows the appearance of a beverage dispenser having a plurality of beverage supply parts. Fig. 8 (a) is a front view, and Fig. 8 (b) is a side view. The beverage dispenser 21 is provided with a beverage selection button 22, a beverage selection button 23, and a beverage selection button 24 on the front door 25, and when a beverage is selected by the beverage selection button 22, a plurality of rollers are rotated to be placed in the beverage dispenser. BIB to do
From the peristaltic pump (tube pump) 26 that delivers a predetermined amount of syrup in the tube that communicates with the (bag-in-box), select the beverage with the beverage selection button 23 from the multi-valve 27, and select the beverage with the beverage selection button 24. Then the peristaltic pump 28
The beverage is supplied from and poured into cup C.

FIG. 9 is a block diagram of a beverage dispenser in which a diluting water conduit and a carbonated water conduit are provided with a flow rate regulator and a syrup conduit is provided with a syrup flow regulator. 31 is a water inlet solenoid valve, 32 is a water pump, 33 is a water cooling coil, 34 is a dilution water pipe line, 9 is a flow rate regulator, 35 is a dilution water solenoid valve, 26
Is a peristaltic pump, 36 is a dilution water line, 37
Is a dilution water solenoid valve, 28 is a peristaltic pump, 3
8 is dilution water pipe, 39 is dilution water solenoid valve, 40 is carbonator feed water solenoid valve, 41 is carbonator, 42 is carbonated water cooling coil, 43 is carbonated water solenoid valve, 44 is carbonated water line, 4
5 is a carbon dioxide cylinder, 46 is a syrup tank, 47 is a syrup cooling coil, 48 is a syrup flow regulator, 49 is a syrup solenoid valve, 50 is a syrup pipe line, 27
Is a multi-valve.

Each of the peristaltic pump 26 and the peristaltic pump 28 is equipped with a tube communicating with a BIB (not shown), and a supply controller (not shown).
At the same time that the dilution water is supplied by the signal from, the peristaltic pump 26 or the peristaltic pump 28 is operated to supply the syrup contained in the BIB.

The dilution water to be supplied to the peristaltic pump 26 is operated by a signal from the supply control unit to operate the water pump 32, and when the water inlet solenoid valve 31 and the dilution water solenoid valve 35 are opened, a water cooling coil for water cooling. 33, is supplied from the dilution water pipe 34 to the peristaltic pump 26 via the flow controller 9 for adjusting the dilution water flow rate, and when the preset time is reached, the water pump 32 is stopped and at the same time the water inlet The solenoid valve 31 and the dilution water solenoid valve 35 are closed to stop the supply of the dilution water. Similarly, the dilution water to be supplied to the peristaltic pump 28 is also supplied to the water pump 3 by a signal from the supply controller.
2 is operated to open the water inlet solenoid valve 31 and the dilution water solenoid valve 37, the water cooling coil 33 for cooling the water, the flow controller 9 for adjusting the flow rate of the dilution water, and the peristaltic fluid from the dilution water pipe 36. When the water is supplied to the pump 28 and reaches a preset time, the water pump 32 is stopped, and at the same time, the water inlet solenoid valve 31 and the dilution water solenoid valve 37 are closed to stop the supply of the dilution water.

In this way, each syrup and dilution water contained in the BIB are supplied and poured into the cup C, and each beverage is obtained.

The dilution water supplied to the multi-valve 27 also operates the water pump 32 in response to a signal from the supply controller.
When the water inlet solenoid valve 31 and the dilution water solenoid valve 39 are opened, the multi-valve 27 from the dilution water pipe 38 is passed through the water cooling coil 33 for water cooling and the flow rate adjuster 9 for adjusting the dilution water flow rate.
When the preset time is reached, the water pump 32 is stopped, and at the same time, the water inlet solenoid valve 31 and the dilution water solenoid valve 39 are closed to stop the supply of the dilution water. Also,
Diluting water pipe 38 is branched, carbonator water supply solenoid valve 4
It is connected to the carbon 41 through 0. A float switch (not shown) for detecting the water level is provided in the carbonator 41, and when the water level inside is at the lower limit position, the water inlet solenoid valve 31 and the carbonator water supply solenoid valve 40 are opened. When the water pump 32 is operated to supply water and the water level in the inside reaches the upper limit position, the water inlet solenoid valve 31 and the carbonator water supply solenoid valve 40 are closed, and the operation of the water pump 32 is stopped. Then, the carbon dioxide gas supplied from the carbon dioxide gas cylinder 45 is dissolved in the supplied water to produce carbonated water. The carbonated water is carbon dioxide 41 under the pressure of carbon dioxide.
Flow rate controller 9 for adjusting the flow rate of the carbonated water, the carbonated water cooling coil 42 for cooling the carbonated water, and the carbonated water solenoid valve 4.
3 is supplied from the carbonated water pipeline 44 to the multi-valve 27, and when the preset time is reached, the supply controller closes the carbonated water electromagnetic valve 43 to stop the carbonated water supply.

On the other hand, the syrup is extruded from the syrup tank 46 by the pressure of the carbon dioxide gas supplied from the carbon dioxide gas cylinder 45, and the syrup cooling coil 4 for cooling the syrup is used.
7, the syrup flow regulator 48 for adjusting the syrup flow rate, the syrup solenoid valve 49 is supplied from the syrup pipe 50 to the multi-valve 27, and when a preset time is reached, the supply control unit causes the syrup solenoid valve 49 to operate. Close and stop the syrup supply. In addition, syrup tank 4
6, syrup cooling coil 47, syrup flow regulator 48, syrup solenoid valve 49, syrup conduit 50,
We have a number corresponding to the beverages for sale.

In the multi-valve 27, the syrup supplied from the syrup tank 46 through the syrup cooling coil 47, the syrup flow regulator 48, and the syrup solenoid valve 49 and the dilution water solenoid valve 39.
Alternatively, dilution water or carbonated water supplied via the carbonated water electromagnetic valve 43 is mixed and discharged as a drink.

[0014]

However, in a beverage dispenser having a plurality of beverage supply units, a plurality of beverage selection buttons may be selected at the same time, and beverages may be supplied from the plurality of beverage supply units. When two beverage selection buttons are selected at the same time, it is required to supply twice the amount of dilution water, but when the amount of supplied dilution water is doubled, the inlet flow path 8 of the flow controller 9 The pressure is, for example, 1.0 MPa to 0.
It drops to 6 MPa. When the pressure in the inlet flow passage 8 of the flow rate regulator 9 decreases from 1.0 MPa to 0.6 MPa, the amount of deformation of the flow washer 2 that goes into the outlet flow channel 12a sharply decreases. Therefore, the flow rate of the flow rate regulator in FIG. As shown in the flow rate characteristics of the flow rate regulator 9 shown in the characteristic diagram, the dilution water flow rate passing through the flow rate regulator 9 is indicated by A point 2
It increased from 6 ml / s to 28 ml / s indicated by point B. For example, in the case of a beverage having a supply time of 5 seconds, only the dilution water flow rate increased from 130 ml to 140 ml by 10 ml,
Beverage supply increases. Thus, if only the amount of dilution water increases, the dilution ratio will change, and the customer will be provided with a so-called watery beverage with a low syrup concentration.

Therefore, an object of the present invention is to provide a flow rate regulator capable of keeping the outlet flow rate substantially constant even if the inlet pressure fluctuates, and a small change in the beverage supply amount or the dilution ratio.
An object of the present invention is to provide a beverage supply device that can always supply a beverage having an appropriate dilution ratio.

[0016]

In order to solve the above-mentioned problems, the invention according to claim 1 provides an inlet passage into which a fluid flows, an outlet passage from which a fluid flows out, and an inlet passage and an outlet passage. In a flow rate controller having a first central hole for adjusting the pressure of the fluid moving from the inlet channel to the outlet channel, and a flow washer made of an elastic member, the flow washer First adjacent to the outlet flow path
It is characterized in that a plate member having a second central hole having a diameter smaller than that of the first central hole is provided so as to communicate with the central hole.

The invention according to claim 2 is characterized in that the first central hole and the second central hole are circular holes.

The invention according to claim 3 is characterized in that the thickness of the plate member is within 50% of the diameter of the second central hole.

The invention according to claim 4 is characterized in that the diameter of the inlet passage and the diameter of the outlet passage are larger than the diameter of the first central hole.

According to a fifth aspect of the present invention, an inlet passage through which a fluid flows in, an outlet passage through which a fluid flows out, and between the inlet passage and the outlet passage move from the inlet passage to the outlet passage. Having a first central hole for adjusting the pressure of the fluid,
A flow washer made of an elastic member, and a plate member having a second central hole having a diameter smaller than the diameter of the first central hole so as to communicate with the first central hole adjacent to the flow passage side of the flow washer. , And a valve that allows passage of a fluid are provided in a diluting liquid conduit for diluting a concentrated raw material to supply a diluting liquid for cooking a beverage. It is a thing.

The invention according to claim 6 is characterized in that the first central hole and the second central hole are circular holes.

The invention according to claim 7 is characterized in that the thickness of the plate member is within 50% of the diameter of the second central hole.

The invention according to claim 8 is characterized in that the diameter of the inlet passage and the diameter of the outlet passage are larger than the diameter of the first central hole.

According to a ninth aspect of the present invention, a beverage supply device comprises a plurality of beverage supply parts having a flow rate adjuster and a diluting liquid pipeline provided with a valve, and when supplying a beverage from the beverage supply device, at least 1 The present invention is characterized by comprising control means for controlling the valve so as to supply the beverage from one or more beverage supply units.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings. It should be noted that the same reference numerals are used for the same configurations as the conventional one.

FIG. 1 is a side sectional view showing a flow rate regulator of the present invention. In FIG. 1, a flow rate adjuster 1 includes a pipe joint 7 provided with an inlet flow path 8, a flow washer case 4 having a recess 5 for coupling with the pipe joint 7, a flow washer 2 attached to the bottom of the recess 5, It consists of a register washer 3 (plate member). The flow washer 2 is made of an elastic material such as silicone rubber and has a circular hole 2a in the center.
The circular hole 2a is provided with a first central hole, and the circular hole 2a is formed by penetrating the center of the flow washer case 4 in the axial direction and the circular hole 3a provided in the central portion of the register washer 3 (first hole). 2 through the central hole). The circular hole 3a has a smaller diameter than the circular hole 2a of the flow washer 2 and communicates with the circular hole 2a, and also communicates with an outlet passage 6 formed by axially penetrating the center of the flow washer case 4. When using the flow washer 2 with the circular hole 2a having a hole diameter of 1.68 mm, the hole diameter of the circular hole 3a of the register washer 3 is set to 1.3 mm because the pressure loss and the flow rate change of the fluid passing through the circular hole 3a. It has been confirmed by experiments that the value is the optimum value that minimizes. Furthermore, the thickness 3b of the register washer 3 is 0.2 mm.
It has been confirmed by experiments that the pressure loss of the fluid passing through the circular hole 3a is reduced when the value is set. If the thickness 3b is set to 50% or more of the diameter of the circular hole 3a, the pressure loss of the fluid passing through the circular hole 3a increases, the flow rate decreases, and it becomes unusable. In addition, the diameter of the inlet passage 8 and the outlet passage 6 is larger than the diameter of the circular hole 2a of the flow washer 2, for example,
The pressure loss of the fluid can be reduced by setting it to 3 mm.

FIG. 2 is an enlarged view of the main part of the flow rate regulator 1 of FIG. 1, in which the flow washer 2 is deformed toward the register washer 3 side in response to an increase in pressure on the inlet passage 8 side, and is circular. It shows a state where the diameter of the hole 2a is changed and the flow rate of the fluid passing through the circular hole 2a is made substantially constant. Since the circular hole 3a of the register washer 3 has a smaller diameter than the circular hole 2a of the flow washer 2,
The flow washer 2 does not go into the circular hole 3a of the register washer 3 and the flow rate of the fluid is made substantially constant only by the change of the diameter of the circular hole 2a. The flow rate of 6 does not change abruptly.

FIG. 3 is a block diagram of a beverage dispenser 30 (beverage supply device) in which the flow rate regulator 1 of the present invention is provided in the dilution water pipeline and the carbonated water pipeline. With the same configuration as the conventional one except that the flow rate regulator 1 of the present invention is replaced with the conventional flow rate regulator 9,
Reference numeral 31 is a water inlet solenoid valve, 32 is a water pump, 33 is a water cooling coil, 34 is a dilution water pipe line, 1 is a flow rate regulator, 35 is a dilution water solenoid valve (valve), and 26 is a peristaltic pump (beverage supply section). , 36 is a dilution water pipe line, 37 is a dilution water solenoid valve (valve), 28 is a peristaltic pump (beverage supply section), 38 is a dilution water pipe line, 39 is a dilution water solenoid valve (valve),
40 is a carbonator water supply solenoid valve, 41 is a carbonator,
42 is a carbonated water cooling coil, 43 is a carbonated water solenoid valve (valve),
44 is a carbonated water pipeline, 45 is a carbon dioxide cylinder, 46 is a syrup tank, 47 is a syrup cooling coil, 48 is a syrup flow regulator, 49 is a syrup solenoid valve (valve),
50 is a syrup pipe line, and 27 is a multi-valve (beverage supply unit).

FIG. 4 shows a control block diagram of the beverage dispenser 30 of the present invention. The beverage selection buttons 22, 23, 24 for outputting a signal for beverage supply, and the supply control for controlling the beverage supply to the cup C. Part 100 (control means),
Diluting water solenoid valves 35, 37, 39, carbonated water solenoid valve 43, syrup solenoid valve 49, and peristaltic for supplying syrup (concentrated raw material) contained in BIB, which are opened by a signal output from the supply control unit 100. Pumps 26, 28,
Beverage dispenser 30 A memory 102 that stores control data for each unit, and a timer 10 that counts clocks generated by a reference clock generation unit (not shown) and measures time.
Have three. In addition, when the beverage selection button is selected and the selection signal is output to the supply control unit 100, the timer 103 is reset in response to an instruction from the supply control unit 100 and only for the time period for supplying the beverage (for example, 5 Seconds)
Count.

As described above, the flow rate regulator 1 of the present invention, and
The configuration of the beverage dispenser 30 including the flow rate adjuster 1 has been described. Next, the operation will be described.

With this structure, when the two beverage selection buttons 22 and 24 are selected at the same time, the beverage is supplied from the peristaltic pump 26 and the peristaltic pump 28 and poured into the cup C. When the two beverage selection buttons are simultaneously selected in this way, the supply amount of dilution water is doubled, and the pressure in the inlet passage 8 of the flow rate regulator 1 is reduced from 1.0 MPa to 0.6 MPa, for example. However, the pressure in the inlet channel 8 is 1.0 MPa to 0.6 MP
circular hole 3a of register washer 3
Has a smaller hole diameter than the circular hole 2a of the flow washer 2 and eliminates the excessive deformation caused by the flow washer 2 slipping into the circular hole 3a of the register washer 3,
Since the flow rate of the fluid passing therethrough is made substantially constant by the change of the diameter of the circular hole 2a, the A point and the B point of the flow rate characteristic of the flow rate regulator 1 shown in the flow rate characteristic diagram of the flow rate regulator of FIG. As shown in (2), since the change in the dilution water supply amount is small, it is possible to always supply the drink having an appropriate dilution ratio with a small change in the drink supply amount and the dilution ratio.

In the above embodiment, a description was given of an example in which a flow rate adjuster was provided in the diluent liquid pipeline of a beverage dispenser having a plurality of peristaltic pumps, and the diluent was supplied from two diluent fluid pipelines at the same time. Also, when the supply pressure of the dilution water supplied by the water pump 32 changes, or when the supply pressure of the carbon dioxide gas supplied from the carbon dioxide cylinder 45 changes and the supply pressure of the carbonated water pushed out from the carbonator 41 also changes. It goes without saying that the same effect can be obtained.

In addition, the two beverage selection buttons 22 and 24 are selected at the same time, and the beverages are simultaneously supplied from the peristaltic pump 26 and the peristaltic pump 28.
Alternatively, the same effect can be obtained when the beverage selection button 24 and the beverage selection button 23 are simultaneously selected and the beverage is simultaneously supplied from the peristaltic pump 26 or the peristaltic pump 28 and the multi-valve 27.

As described above, the inlet channel 8 into which the fluid flows, the outlet channel 6 from which the fluid flows, and the inlet channel 8 to the outlet channel between the inlet channel 8 and the outlet channel 6. 6 has a circular hole 2a for adjusting the pressure of the fluid moving to 6 and a flow washer 2 made of an elastic member such as silicon rubber. A circular hole 3a having a diameter smaller than that of the circular hole 2a so as to be adjacent to the side and communicate with the circular hole 2a.
By providing the register washer 3 having
The flow washer 2 does not go into the circular hole 3a of the register washer 3 and the flow rate of the fluid is adjusted by changing the diameter of the circular hole 2a. Therefore, even if pressure fluctuations occur on the inlet passage 8 side, the outlet passage 6 side It becomes possible to make the flow rate of the above substantially constant.

Since the circular holes 2a and 3a are circular holes, the circular holes 2a and 3a can be easily communicated with each other.

By making the thickness 3b of the register washer 3 within 50% of the diameter of the circular hole 3a, it is possible to prevent the pressure loss of the fluid passing through the circular hole 3a from increasing and the flow rate from decreasing. Become.

The diameters of the inlet passage 8 and the outlet passage 6 are equal to those of the circular hole 2
When the diameter is larger than the diameter of a, it becomes possible to reduce the pressure loss when the fluid flows through the inlet passage 8 and the outlet passage 6.

Between the inlet channel 8 into which the fluid flows, the outlet channel 6 from which the fluid flows, and between the inlet channel 8 and the outlet channel 6, the fluid moving from the inlet channel 8 to the outlet channel 6 The flow washer 2 has a circular hole 2a for adjusting the pressure and is made of an elastic member such as silicon rubber, and the circular hole 2a is formed so as to communicate with the circular hole 2a adjacent to the outlet flow passage 6 side of the flow washer 2. A flow washer 1 having a register washer 3 having a circular hole 3a having a diameter smaller than the diameter 2a, and a dilution water solenoid valve 35, 3 for permitting passage of fluid.
7, 39 and the carbonated water solenoid valve 43 are provided in the diluting water pipe lines 34, 36, 38 and the carbonated water pipe line 44 for supplying the diluting liquid for diluting the syrup and cooking the beverage, respectively. Even if the supply pressure fluctuates, the change in the diluent supply amount in the beverage supply unit is small, so that it is possible to always supply a drink having an appropriate dilution ratio with little change in the drink supply amount or the dilution ratio.

The beverage dispenser 30 comprises a flow controller 1 and dilution water solenoid valves 35, 37, 39 or carbonated water solenoid valve 43.
It comprises a plurality of peristaltic pumps 26, peristaltic pumps 28 or multi-valves 27 having diluting water lines 34, 36, 38 or carbonated water lines 44 provided with at least one or more when delivering a beverage from a beverage dispenser 30. Peristaltic pump 2
6, dilution water solenoid valve 35, 3 so as to supply beverage from peristaltic pump 28 or multi-valve 27
7, 39 or the supply control unit 100 for controlling the carbonated water solenoid valve 43, the beverage can be simultaneously supplied from the two beverage supply units, and the beverage can be supplied even if the two beverages are supplied at the same time. It is possible to always supply a beverage having an appropriate dilution ratio, which has a small change in the amount and the dilution ratio.

[0040]

As described above, according to the present invention, the second washer having a diameter smaller than the diameter of the first central hole is provided so as to be adjacent to the outlet flow passage side of the flow washer and communicate with the first central hole.
Since the plate member having the central hole is provided in the flow rate regulator, the flow rate on the outlet flow passage side can be made substantially constant even if the pressure on the inlet flow passage side fluctuates. Further, by providing the flow rate regulator of the present invention and a valve for allowing passage of a fluid in a diluting liquid conduit for diluting a concentrated raw material and supplying a diluting liquid for cooking a beverage, the supply of the beverage It is possible to provide a beverage supply device that can constantly supply a beverage having an appropriate dilution ratio with a small change in the amount and the dilution ratio.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a flow rate regulator according to an embodiment of the present invention.

FIG. 2 is an enlarged view of an essential part of a side cross-sectional view of a flow rate regulator according to an embodiment of the present invention.

FIG. 3 is a configuration diagram showing a beverage dispenser according to an embodiment of the present invention.

FIG. 4 is a control block diagram showing the beverage dispenser according to the embodiment of the present invention.

FIG. 5 is a flow rate characteristic diagram of the flow rate regulator according to the embodiment of the present invention.

FIG. 6 is a side sectional view showing a conventional flow rate regulator.

FIG. 7 is an enlarged view of a main part of a side sectional view of a conventional flow rate regulator.

FIG. 8 is an external view showing a beverage dispenser including a plurality of beverage supply units.

FIG. 9 is a configuration diagram showing a conventional beverage dispenser.

FIG. 10 is a flow rate characteristic diagram of a conventional flow rate regulator.

[Explanation of symbols]

1 Flow controller 2 flow washer 2a circular hole 3 register washers 3a circular hole 3b thickness 4 flow washer case 5 recess 6 outlet channels 7 Pipe fitting 8 inlet channels 22 Beverage selection button 23 Beverage selection button 24 Beverage selection button 26 Peristaltic Pump 27 multi valve 28 Peristaltic pump 30 beverage dispensers 34 Dilution water pipeline 35 dilution water solenoid valve 36 Dilution water pipeline 37 dilution water solenoid valve 38 Dilution water pipeline 39 Dilution water solenoid valve 43 Carbonated water solenoid valve 44 Carbonated water pipeline 100 supply control unit

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Claims (9)

[Claims] 1. An inlet channel into which a fluid flows, an outlet channel from which the fluid flows, and a fluid moving from the inlet channel to the outlet channel between the inlet channel and the outlet channel. A first central hole for adjusting the pressure of the flow washer, and a flow washer made of an elastic member, and the first central portion adjacent to the outlet flow passage side of the flow washer. A flow rate regulator comprising a plate member having a second central hole having a diameter smaller than that of the first central hole so as to communicate with the hole. 2. The flow rate regulator according to claim 1, wherein the first central hole and the second central hole are circular holes. 3. The flow rate regulator according to claim 1, wherein the thickness of the plate member is within 50% of the diameter of the second central hole. 4. The flow rate regulator according to claim 1, wherein the diameters of the inlet passage and the outlet passage are larger than the diameter of the first central hole. 5. An inlet channel into which a fluid flows, an outlet channel from which the fluid flows, and a fluid moving from the inlet channel to the outlet channel between the inlet channel and the outlet channel. A first central hole for adjusting the pressure of the flow washer, the flow washer made of an elastic member, and the first central hole adjacent to the outlet flow passage side of the flow washer so as to communicate with the first central hole. A plate member having a second central hole having a diameter smaller than the diameter of the central hole of No. 1; and a valve for permitting passage of the fluid; A beverage supply device provided with a flow rate adjuster, characterized in that the beverage supply device is provided in a diluting liquid pipeline for supplying a diluting liquid for cooking. 6. The beverage supply device with a flow regulator according to claim 5, wherein the first central hole and the second central hole are circular holes. 7. The beverage supply device with a flow rate regulator according to claim 5, wherein the thickness of the plate member is within 50% of the diameter of the second central hole. 8. The beverage supply device with a flow rate regulator according to claim 5, wherein the diameters of the inlet passage and the outlet passage are larger than the diameter of the first central hole. . 9. The beverage supply device comprises a plurality of beverage supply parts having the diluent controller having the flow rate adjuster and the valve, and at least one beverage supply device supplies the beverage from the beverage supply device. 9. A beverage supply device provided with a flow rate adjuster according to claim 5, further comprising control means for controlling the valve so as to supply the beverage from the beverage supply unit.