KR100261645B1 - Beverage feeding apparatus - Google Patents

Abstract

Provide a beverage supply control device that can minimize leakage damage.

Even if an abnormality occurs in the control system due to a runaway program or the like after the start of water supply, the monitoring timer 4 supplies the current to the water inlet solenoid valve 12 when the energizing time of the water inlet solenoid valve 12 has passed the limit energizing time. To block.

Description

Beverage feeder

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beverage supply apparatus applied to a beverage dispenser or the like, and more particularly to a beverage supply apparatus designed to minimize the damage of water leakage.

3 shows an example of a beverage dispenser piping system to which a beverage supply device is applied. Tap water from the city tap water is supplied to the first distributor 13A via a pipe P ₁ via a water filter 11 and a water inlet solenoid valve 12. The tap water supplied to the first distributor 13A branches into two parts here, the water tank 14 side and the coil unit 15 side disposed in the water tank water in the water tank 14. The tap water supplied to the water tank 14 side flows into the water tank 14 via the pipe P ₂ via the water tank feed solenoid valve 16. The tap water supplied to the coil unit 15 side is pressurized by the pressure pump 17 through the pipe P ₃ , and supplied to the second distributor 13B via the coil unit 15. The tap water supplied to the second distributor 13B is here a multi-valve 18 side, a carbonate 19 side arranged in the cooling water of the water tank 14 to produce carbonated water, and one varistor pump 20A. It branches into four on the side and the other varistor pump 20B side. The water supplied to the multi-valve 18 side flows into the multi-valve 18 via the flow control valve 21 and the cold water solenoid valve 22 through the pipe P ₄ , and discharges it to the cup C as cold water. do. The water supplied to the carbonator 19 side is supplied to the carbonator 19 through the carbonator feed solenoid valve 23 through a pipe P ₅ , and blows carbon dioxide gas from the carbon dioxide gas cylinder 24. Carbonated water becomes the carbonated water, and the carbonated water flows into the multi-valve 18 via the flow rate adjusting valve 25, the coil unit 15, and the carbonated water solenoid valve 26, and is discharged into the cup C. The water supplied to the varistor pumps 20A and 20B is supplied to the varistor pumps 20A and 20B through the pipes P ₆ and P ₇ through the flow control valves 27A and 27B, and the varistor pumps ( The dilution water is discharged into the cup C as the dilution water via the dilution water solenoid valves 20a and 20b in the 20A and 20B. On the other hand, the syrups I, II, III, and IV that were pressurized from the syrup tanks 28A, 28B, 28C, and 28D by the carbon dioxide gas from the carbon cylinder 24 are the coil unit 15 and the syrup solenoid valve 29A. It flows into the multi-valve 18 via 29B, 29C, 29D, and is discharged to the cup C. As shown in FIG.

The conventional beverage supply apparatus which controls the piping system comprised in this way is shown in FIG. This beverage supply apparatus 10 has the control part 30 provided with the timer 30a which counts the elapsed time after opening each magnetic valve, The said water inlet solenoid valve 12, Water tank feed solenoid valve 16, pressure pump 17, dilution water solenoid valves 20a, 20b, cold water solenoid valve 22, carbonator feed solenoid valve 23, carbonated water solenoid valve 26, syrup solenoid valve (29A, 29B, 29C, 29D) and the water tank float switch 31 and the carbonator which connect the varistor pumps 20A, 20B, respectively, and detect the upper and lower level of the tank water in the tank 14. The float switch 32 for carbonator which detects the upper limit water level and the lower limit water level in 19) is respectively connected. In the control part 30, the solenoid valve opening time (for example, 5 to 10 seconds) at the time of sale in advance is each water inlet solenoid valve 12, the dilution water solenoid valves 20a and 20b, the cold water solenoid valve 22, the carbonated water Limit energization time of the water inlet solenoid valve 12 (for example, 10 minutes) which is set in correspondence with the solenoid valve 26 and the syrup solenoid valves 29A, 29B, 29C, and 29D, and prevents leakage of water leakage. ) Is set.

In the beverage supply device 10 configured as described above, when a sales signal is input, the control unit 30 opens the solenoid valve necessary for supplying the beverage, and at the same time, the elapsed time since the solenoid valve is opened to the timer 30a. By counting, the solenoid valves are closed at the time point when the counting value of the timer 30a is set, and the counting value of the timer 30a is cleared. When the switches 31 and 32 detect the lower limit level, the control unit 30 controls the water inlet solenoid valve 12 and the water tank feed solenoid valve 16 or the carbonator feedwater until the switches 31 and 32 detect the upper limit level. The solenoid valve 23 is opened and water is supplied to the water tank 14 or the carbonator 19. Usually, replenishment is complete in about 1 to 2 minutes. Then, when water is supplied to the water tank 14 or the carbonator 19, the upper limit level of the switches 31 and 32 cannot be detected due to a failure of the switches 31 and 32, and the count value of the timer 30a is prevented. The controller 30 closes the water inlet solenoid valve 12 after the set limit energizing time has elapsed. In this manner, the water supply time of the water inlet solenoid valve 12 is monitored by the timer 30a in the control unit 30, the so-called soft timer, so that water is continuously supplied due to failure of the switches 31 and 32 and the like. The inlet solenoid valve 12 can be closed to prevent the expansion of leakage damage.

However, according to the conventional beverage supply apparatus 10, if an abnormality occurs in the control system due to program runaway or the like after starting water supply, a leakage accident occurs while the solenoid valve of the piping system is energized, and leakage damage is increased. there is a problem.

Accordingly, it is an object of the present invention to provide a beverage supply apparatus that can minimize the damage of water leakage.

1 is a block diagram of a beverage supply apparatus according to the present invention.

2 is a time chart of a beverage supply apparatus according to the present invention;

3 shows a piping system of a beverage dispenser to which a beverage supply device is applied.

4 is a block diagram of a conventional beverage supply apparatus.

<Description of the code | symbol about the principal part of drawing>

1: drink feeding device

2: first electronic relay

2a: top contact

2b: relay coil (R ₁ )

3: second electronic relay

3a: Normally closed contact

3b: top contact

3c: relay coil (R ₂ )

4: watchdog timer

4a: timer coil (T)

4b: top contact

5: LED lamp

6: control unit

6a: timer

11: water filter

12: water inlet solenoid valve (SV)

13A: first distributor

13B: second distributor

14: tank

15 coil unit

16: water tank water supply solenoid valve

17: pressure pump

18: multi-valve

19: Carbonator

20A, 20B: Varistor Pump

20a, 20b: dilution water solenoid valve

21, 25, 27A, 27B: Flow Adjustment Valve

22: cold water solenoid valve

23: Carbonator Water Supply Solenoid Valve

24: carbon dioxide gas cylinder

26: carbonated water solenoid valve

28A, 28B, 28C, 28D: Syrup Tank

29A, 29B, 29C, 29D: Syrup Solenoid Valve

31: Float switch for water tank

32: float switch for carbonator

C: cup

L ₁ , L ₂ : AC line

L ₃ : DC line

P ₁ , P ₂ , P ₃ , P ₄ , P ₅ , P ₆ , P ₇ : Piping

S _L : Lower limit water level detection signal

S _S : Sales Signal

S _U : Upper limit water level detection signal

t ₁ : solenoid valve opening time

t ₂ : first limit energizing time

t ₃ : second limit energizing time

The present invention provides a beverage supply device having a water supply system for supplying water from a common water inlet solenoid valve to a plurality of water supply units, wherein the amount of water supplied to one water supply unit in the plurality of water supply units Signal generating means for outputting a water supply stop signal when a predetermined value is reached; first timer means for starting a first time limit when water supply is started in the one water supply unit; Second timer means for starting a second time limit that is greater than one time limit; first control means for stopping water supply to the one water supply unit based on the water supply stop signal or the first time limit end signal; And a second control means for stopping the water supply to the one water supply part based on the second time limit end signal when an abnormality occurs in the first control means. Provided is a beverage supply device.

According to the above configuration, when an abnormality occurs in the signal generating means due to a sensor failure or the like, the first control means stops the water supply to one water supply part based on the first time limit end signal. When an abnormality occurs in the first control means due to program runaway or the like, the second control means stops the water supply based on the second time limit end signal.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail with reference to drawings.

1 is a configuration diagram of a beverage supply device according to an embodiment of the present invention. The beverage supply device 1 is a beverage will be applied to the dispenser piping system, the AC line of the AC 100 V of water shown in Figure 3 between the (L _1, L _2), the inlet solenoid valve (SV) shown in Figure 3 ( 12), the open contact 2a of the first electronic relay 2 and the close contact 3a of the self-maintaining second electronic relay 3 are connected to each other, and a watchdog timer as a time relay is provided to the water inlet solenoid valve 12. The timer coil (T) 4a of (4) is connected in parallel, and the upper contact point 3b of the second electronic relay 3 and the relay coil R ₂ between the DC line L ₃ and GND of DC 24V. (3c) is connected, the upper contact 4b of the monitoring timer 4 is connected in parallel to the upper contact 3b of the second electronic relay 3, and the relay coil R of the second electronic relay 3 is connected. ₂ ) 3c is connected to the LED lamp 5 in parallel, and the relay coil (R ₁ ) (2b) of the first electronic relay 2 between the DC line (L ₃ ) of DC 24V and the control unit (6) Is connected.

Then, the beverage supply device 1 includes a first electromagnetic relay (2) of the relay coil (R ₁₎ (2b), the tank water supply electromagnetic valve 16, a pressure pump 17, the dilution can e to the control unit (6) Valve 20a, 20b, cold water solenoid valve 22, carbonator feed water solenoid valve 23, carbonated water solenoid valve 26, syrup solenoid valves 29A, 29B, 29C, 29D, float switch 31 for the water tank , The float switch 32 for carbonator, and the varistor pumps 20A, 20B are respectively connected.

The monitoring timer 4 is capable of setting a second limit energization time (for example, 11 minutes) t _{3 of the} water inlet solenoid valve 12, and the energization time of the water inlet solenoid valve 12 is the second. When the limit energization time t ₃ elapses, the upper contact 4b is configured to be closed by the timer coil T 4a. As such a monitoring timer 4, CR oscillation counting timer, CR time constant type timer, etc. can be used, for example.

The control unit 6 includes a solenoid valve opening time (for example, 5 to 10 seconds) (t ₁ ) at the time of sale in advance, for each water inlet solenoid valve 12, dilution water solenoid valves 20a and 20b, and a cold water solenoid valve 22, the first limit energization time of the water inlet solenoid valve 12, which is set corresponding to the carbonated water solenoid valve 26, the syrup solenoid valves 29A, 29B, 29C, and 29D, and prevents the leakage of water from escalating. (For example, 10 minutes) (t ₂ ) can be set. Then, the control unit 6 is provided with a timer (software timer) (6a) for conducting the timing of the electromagnetic valve open time (t _1), the first threshold power application time (t ₂₎ as a first time limit, the water inlet E The energization time of the valve 12 is monitored by the timer 6a. Moreover, a 1st control means is comprised by the 1st electronic relay 2 and the control part 6, and a 2nd control means is comprised by the 2nd electronic relay 3 and the monitoring timer 4. As shown in FIG.

Next, the operation of the apparatus 1 will be described with reference to the timing chart of FIG.

(1) Supply of carbonated beverages (see FIG. 2A)

When the selling signal S _S of the carbonated beverage is input to the control unit 6, the control unit 6 drives the pressure pump 17, and at the same time, the water inlet solenoid valve 12, the cold water solenoid valve 22, and the carbonated water solenoid valve ( 26) and the syrup solenoid valves 29A, 29B, 29C, and 29D are opened and closed on the basis of the preset solenoid valve opening time t ₁ , and the carbonated water, cold water, and syrup (I, II, III, IV) are multiplied. It discharges from the valve 18 to the cup C. In addition, the flow of the carbonated water, cold water, and syrup is as described with reference to FIG. 3. Control unit 6 for the water inlet solenoid valve (12) includes a first electromagnetic relay (2) a relay coil (R ₁₎ by flowing an electric current to (2b) normally open contact (2a) close up of, and the water inlet solenoid valve (12 The elapsed time after opening the water inlet solenoid valve 12 and opening the water inlet solenoid valve 12 by applying a current to the counter) is counted by the timer 6a, and the count value of the timer 6a opens the solenoid valve. When the time t ₁ elapses, the supply of current to the relay coil R ₁ (2b) of the first electronic relay 2 is stopped to open the upper contact 2a, and the current to the water inlet solenoid valve 12 is released. Shut off to close the water inlet solenoid valve 12.

(2) Supply of non-carbonated beverages (see FIG. 2A)

When the sales signal S _S of the non-carbonated beverage is input to the control unit 6, the control unit 6 drives the pressure pump 17 and at the same time the water inlet based on the preset solenoid valve opening time t ₁ . The solenoid valve 12 and the dilution water solenoid valves 20a and 20b are opened and closed, the dilution water is discharged into the cup C from a nozzle (not shown), and the varistor pumps 20A and 20B are driven to produce a syrup (not shown). Syrup is discharged from the tank into the cup (C). The dilution water and the flow of the syrup are as described with reference to FIG. 3. The opening and closing control of the water inlet solenoid valve 12 is the same as that of the carbonated beverage supply of the above (1).

(3) Water supply to the water tank 14 (see (b) of FIG. 2)

When the water tank in the water tank 14 decreases by evaporation etc., and the float switch 31 for water tank detects a lower limit water level, it sends a lower limit water level detection signal S _L to the control part 6. The control part 6 opens the water inlet solenoid valve 12 and the water tank water supply solenoid valve 16 based on the lower limit water level detection signal S _L from the water tank float water position 31. For the water inlet solenoid valve (12) by flowing an electric current to the relay coil (R ₁₎ (2b) of the first electromagnetic relay (2) closing the normally open contact (2a), and by flowing a current to the water inlet solenoid valve (12) Open the water inlet solenoid valve 12. It can be from the city water pipe (P ₁₎ a through the water filter 11 and the water inlet via the solenoid valve 12 is supplied to the first divider (13A), and the pipe (P _2), the tank water supply electromagnetic valve through the Water is supplied to the water tank 14 via (16). When the number of water tanks in the water tank 14 increases, and the float switch 31 for water tanks detects an upper limit water level, the upper limit water level detection signal S _U is sent to the control unit 6. Control unit 6 to an upper limit level detection signal (S _U) from the quiet float switch 31 on the basis closes the water inlet solenoid valve 12 and the tank water supply electromagnetic valve 16. With respect to the water inlet solenoid valve 12, the supply of current to the relay coil R ₁ (2b) of the first solenoid relay 2 is stopped to open the upper contact 2a, and the current to the water inlet solenoid valve is released. Shut off to close the water inlet solenoid valve 12.

(4) Replenishment of water to the carbonator tank (see FIG. 2 (b))

When the carbonated water in the carbonator 19 decreases by the supply of the carbonated water, and the float switch 32 for the carbonator detects the lower limit level, the lower limit level detection signal S _L is sent to the controller. The control unit 6 drives the pressure pump 17 based on the lower limit water level detection signal S _L from the float switch 32 for the carbonator and at the same time the water inlet solenoid valve 12 and the carbonator feed solenoid valve ( 23) Open. It can be from a city water via the water filter 11 and the water inlet solenoid valve (12) through a pipe (P ₁₎ is supplied to the first divider (13A), and the pipe (P _3), a pressure pump (17 through ) Is supplied to the coil unit 15 and the second distributor 13B, and is supplied to the carbonator 19 through the carbonator water supply solenoid valve 23 through the pipe P ₅ . When the carbonated water is produced from the water supplied and the carbonated gas, the carbonated water in the carbonator 19 increases, and the float switch 23 for the carbonator detects the upper limit level, the upper limit level detection signal S _U is controlled. Send to. The control unit 6 stops driving the pressure pump 17 based on the upper limit water level detection signal S _U from the float switch 32 for the carbonator, and at the same time, the water inlet solenoid valve 12 and the carbonator feedwater electronics. The valve 23 is closed. The opening / closing control of the water inlet solenoid valve 12 is the same as that of water replenishment to the water tank 14 of the above (3).

(5) Water supply when the first abnormality occurs (refer to (c) of FIG. 2)

If the switches 31 and 32 fail as the first abnormality, even if water is supplied to the water tank 14 or the carbonator 19, the switches 31 and 32 cannot detect the upper limit level, but the count value of the timer 6a When the first limit energization time t ₂ has elapsed, the controller 6 stops supplying current to the relay coil R ₁ (2b) of the first electronic relay 2 to open the upper contact 2a, and The water inlet solenoid valve 12 is closed by interrupting the current to the inlet solenoid valve 12.

(6) Water supply when the second abnormality occurs (see (d) of FIG. 2)

When abnormality of the control system, such as program runaway, occurs as a 2nd abnormality after starting water supply, the control part 6 cannot perform the opening / closing control of all the solenoid valves, and the relay coil R of the 1st electromagnetic relay 2 is carried out. ₁ ) (2b) continues to flow, but the watchdog timer 4 is the open contact when the count value of the elapsed time after the current flows in the timer coil (T) 4a has passed the second limit energization time t ₃ . (4b) is closed. As a result, as shown in FIG. 2 (d), a current flows in the relay coil R ₂ 3c of the second electronic relay 3, and the phase-closing contact 3a of the second electronic relay 3 is generated. To open the water inlet solenoid valve 12 to close the water inlet solenoid valve 12. As the current flows through the relay coil R ₂ 3c, the open contact 3b is closed, and the open state of the close contact 3a is maintained. At the same time, the LED lamp 5 lights up and informs the operator that an abnormality has occurred.

According to the apparatus 1 described above, the following effects can be obtained.

(A) Since the energization time of the water inlet solenoid valve 12 is monitored by the monitoring timer 4 in addition to the so-called soft timer, the double safety is achieved. Even if it occurs, leakage damage can be minimized. And since both are monitored by soft and hard, leakage damage can be minimized more reliably.

(B) Since the abnormality is alerted by the LED lamp 5, repair of a fault site can be performed quickly.

(C) Since the energization time of the common water inlet solenoid valve 12 provided upstream of the piping system is monitored by the soft timer and the monitoring timer 4, the circuit for monitoring all the solenoid valves of the piping system is monitored. Compared with installing each one, the configuration can be simplified and cost increase can be avoided.

(D) Even when the open contact 2a of the first electromagnetic relay 2 continues to energize the water inlet solenoid valve 12 due to a poor contact or the like, the monitoring timer 14 energizes the water inlet solenoid valve 12. Can be released.

In addition, this invention is not limited to the said embodiment, A various embodiment is possible.

For example, the alarm by the LED lamp 5 may be another method, such as a buzzer sound.

And instead of the monitoring timer 4, you may monitor the electricity supply time of the water inlet solenoid valve 12 by the soft timer by a 2nd control part.

As described above, according to the beverage supply apparatus of the present invention, even if an abnormality occurs in the first control means due to the runaway of the program after starting the water supply, the second water supply can stop the water supply. can do.

And by monitoring the energization time of the common water inlet solenoid valve provided upstream of a water supply system, a structure can be simplified compared with monitoring all the solenoid valves of a water supply system.

Claims (7)

In the beverage supply apparatus provided with the water supply system which supplies water to a some water supply part from a common water inlet solenoid valve, Signal generating means for outputting a water supply stop signal when the water supply to one of the plurality of water supply units reaches a predetermined value; First timer means for initiating a first time limit when water supply is initiated in said one water supply section; Second timer means for starting a second time limit greater than a first time limit when water supply is initiated in said one water supply section; First control means for stopping water supply to the one water supply unit based on the water supply stop signal or the first time limit time end signal; And a second control means for stopping water supply to the one water supply part based on the second time limit end signal when an abnormality occurs in the first control means. The water supply system according to claim 1, wherein the second timer means starts the second time limit by considering that water supply is started in the one water supply unit when a current is supplied to the water inlet solenoid valve, And the second control means is configured to stop water supply to the one water supply unit by interrupting a current supplied to the water inlet solenoid valve. The water supply system according to claim 1, wherein the first control means stops water supply to the one water supply unit by CPU control, And the second timer means and the second control means are configured to stop the water supply to the one water supply unit while starting the second time limit by the time relay. The beverage supply apparatus according to claim 1, wherein the first and second control means are configured to stop water supply to the one water supply unit by CPU control. The water supply system of claim 1, wherein the one water supply unit is a water tank for cooling a beverage by the supplied water. And the signal generating means is a float switch configured to detect at least an upper limit level of the tank water in the tank and output an upper limit level detection signal as the water supply stop signal. The water supply system of claim 1, wherein the one water supply unit is a carbonator for preparing carbonated water using the supplied water and carbonated gas, And the signal generating means is a float switch configured to detect at least an upper limit level of carbonated water in the carbonator and output an upper limit level detection signal as the water supply stop signal. The beverage according to claim 1, wherein said second control means comprises an alarm means for alarming an abnormality of said signal generating means or said first control means when stopping water supply to said one water supply portion. Feeding device.

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