JP5806377B2 - Flow control system - Google Patents

Description

  The present invention relates to a flow rate control system, and preferably relates to a flow rate control system including an automatic water stop type flush valve used for a toilet.

As this type of flow control device (valve), for example, there is a flush valve device shown in the following patent document filed earlier by the present inventors.
More specifically, a main control valve disposed in a path from the inlet to the outlet, and a spring that is located behind the main control valve and biases the main control valve toward the valve seat by balancing the pressure with the inlet side. The pressure chamber is equipped with a pilot valve that allows the main control valve to open by releasing the pressure in the pressure chamber, and a flow meter unit for measuring the flow rate of water from the inlet to the outlet. The pilot valve opening operation is automatically controlled based on the output so that an appropriate amount of water is discharged to the toilet or the like through the outlet.

Japanese Patent Laid-Open No. 7-189111

  By the way, in facilities such as public toilets where a plurality of flow control devices of this type are installed, it is possible to grasp the amount of water used by referring to the water meter provided in the water supply main. The flow rate of the entire facility including both the toilet bowl and the wash basin is indicated, and it is difficult to individually grasp the flow rate consumed by each facility such as each toilet bowl or the wash basin.

In particular, the flow control valve composed of an automatic water stop type flush valve device manages the flow to be discharged by the automatic control of the pilot valve based on the sensor output as described above. It is important to keep in mind to efficiently perform maintenance and management after construction.
In addition, the flow rate of water used for discharge becomes useful information for facility management. By accurately grasping this flow rate, for example, the water-saving efficiency associated with the adoption of an automatic water-stop type flush valve device must be clearly understood. Is possible.

  The present invention has been made in consideration of such a technical background, and an object thereof is to provide a flow rate control system that is easy to maintain and manage. It is another object of the present invention to provide a flow rate control system that makes it easy to specifically check the water-saving situation of washing water. Another object of the present invention is to provide a flow control system that can efficiently save water.

In order to solve the above technical problem, the present invention has the following configuration.
That is, the present invention is a system for controlling wash water supplied to a toilet in a toilet,
A measuring unit that measures the time it takes for the toilet user to defecate,
A control valve provided in the path from the inlet to the outlet;
A detection unit that outputs the presence or absence of fluid flow from the inflow port to the outflow port with an electrical signal; and
A flow rate calculation unit that calculates the flow rate of the fluid discharged through the outlet based on the electrical signal acquired by the detection unit, and whether the flow rate calculated by the flow rate calculation unit has reached the discharge stop flow rate at which the discharge should be stopped A control unit for controlling the opening and closing operation of the control valve based on whether or not,
The control unit controls the control valve to discharge the first amount of water when the time required for the toilet user's defecation measured by the measurement unit is equal to or greater than a predetermined value, and when the time is less than the predetermined value, Controlling the control valve to discharge with a second amount of water smaller than the amount of water of 1,
Furthermore, the control unit includes a storage unit that stores the number of discharges by the first amount of water, a discharge unit by the second amount of water, and an output unit that outputs data stored in the storage unit. A flow control system was used.

Moreover, the said memory | storage part can be set as the flow volume control system which matches and memorize | stores the flow volume discharged | emitted from the said control valve, and the time or date when discharge | release with the said flow volume was made | formed.
The flow rate control system of the present invention further includes a usage time detection unit that detects a toilet usage time per toilet user, and the control unit discharges from the control valve within the time detected by the detection unit. It can be set as the structure which memorize | stores the performed flow volume and the frequency | count of discharge in the said memory | storage part.
Further, the control unit is actually discharged from the control valve, which is calculated by the flow rate calculation unit in the predetermined period, from the reference flow rate obtained by multiplying the number of times of operation of the control valve in the predetermined period by the first water amount. It can be set as the structure which subtracts a flow volume and calculates water saving data.

  The flow rate control system of the present invention configured as described above includes an output unit that outputs the calculated flow rate to the outside. That is, in this configuration, not only the calculated flow rate is used for the opening / closing operation of the control valve, but also an output unit that outputs the calculated flow rate to the outside is provided. Therefore, in maintenance and management of the flow control valve, the flow control valve is obtained by grasping the flow data output through the output unit through, for example, a tester connectable to the output unit or a flow rate counter provided in the output unit. It can be used for maintenance. In addition, data output from the output unit may be input to a computer in a management center via a communication line so that the flow control systems in various places can be managed in a centralized manner.

Since the first amount of water, which is the amount of washing water for small use, and the second amount of water, which is the amount of washing water for large use, can be stored together with the number of discharges, the amount of water used according to the specific application can be determined. It is possible to accurately grasp the water saving amount.
In addition, it is possible to accurately grasp the amount of cleaning water used for one use of the toilet.

In the above, “output to the outside” may be not only direct output from the flow rate calculation unit but also indirect output via the control unit, and the calculated flow rate can be acquired from the outside. A simple output is sufficient.
Further, in the present invention, the “flow rate” is a numerical value capable of grasping the amount of fluid flowing out. In addition to the value indicating the volume of liters, etc., the time when the discharge that can be converted into the flow rate has been performed, etc. It is a concept that also includes

The output unit may be provided with a display device for displaying the output flow rate.
According to this configuration, the display unit is provided in the output unit, and the flow rate output to the output unit is displayed outside the display device. Therefore, it is possible to grasp the amount of fluid used for discharge by referring to the display device.

  Further, in the configuration in which the storage unit that stores the flow rate to be output to the output unit and the time or date when the discharge accompanied with the output is performed in association with each other is provided, the output is accompanied by the output. The time or date is associated with the release. Therefore, it is possible to obtain more accurate information associated with the association with the date and time as well as grasping the flow rate.

  The output unit may be configured to accumulate and output the flow rate of the fluid discharged per unit period. According to this configuration, in grasping the flow rate, for example, it is possible to grasp the flow rate of the fluid discharged per unit period in units of days, hours, and the like.

Further, the control unit compares the calculated flow rate with a predetermined target discharge flow rate, calculates a flow rate difference calculation circuit that calculates the excess or deficiency of the flow rate, and releases the flow rate based on the flow rate calculated by the flow rate difference calculation circuit. A configuration including a correction circuit that corrects a flow rate to be flowed may be used.
Here, the target discharge flow rate is the amount of washing water required for the structure of the toilet bowl or drain pipe. For example, if it is a large washing water discharge flow rate, it is 10 liters, if it is a small washing water discharge flow rate. The flow rate is 6 liters.

  The discharge stop flow rate is a flow rate at the time when the control unit starts (instructs) closing of the control valve. For example, if it is a large discharge stop flow rate, it is 7 liters, and if it is a small discharge stop flow rate. The flow rate is 4 liters. This is set based on the fact that in the case of the flush valve device for controlling the washing water, there is a time difference until the flush water is actually stopped when the control valve is closed. That is, if the discharge stop operation is started when 7 liters of discharge is detected, the washing water supply can be stopped when the discharge of 10 liters is completed, and the discharge stop operation is started when 4 liters of discharge is detected. In this case, the supply of the washing water can be stopped when the discharge of about 6 liters is completed. The flow rate calculated by the flow rate calculation unit means an accurate flow rate actually supplied from the flow rate control device.

  According to the above configuration, the calculated flow rate is compared with a predetermined target discharge flow rate to calculate the excess or deficiency of the flow rate, and the flow rate to be discharged based on the correction value (flow rate) corresponding to the excess or deficiency Is corrected. In the above, “correcting the flow rate to be discharged” means, for example, correction of the valve opening time of the control valve or correction of the discharge stop flow rate, which can substantially change the flow rate to be discharged. For example, the parameters to be corrected can be changed as appropriate.

  Further, the output unit may be provided with a notifying unit for notifying that when the flow rate of the discharged fluid is excessive or insufficient.

  According to this configuration, the notification unit is provided in the output unit, and the notification unit, for example, compares the calculated flow rate with the target discharge flow rate, and notifies that effect when the flow rate is excessive or insufficient. doing. Therefore, the facility manager or the like can easily grasp the excess or deficiency of the fluid used for discharge by the notification by the notification unit.

  The contents described in the means for solving the above-described problems can be combined as much as possible without departing from the problems and technical ideas of the present invention.

  Thus, according to the present invention, it is possible to provide a flow rate control system that is easy to maintain and manage. Moreover, the flow control system which can grasp | ascertain the specific water saving amount easily can be provided. In addition, it is possible to provide a flow control system that can efficiently save water.

The expanded longitudinal cross-sectional view of the outlet vicinity of the flush valve apparatus which concerns on this invention. II sectional drawing of FIG. The whole longitudinal cross-sectional view of a flush valve apparatus. The expanded longitudinal cross-sectional view around the flow meter unit of a flush valve apparatus. The expanded longitudinal cross-sectional view around the pilot valve which shows the state which the pilot valve of the flush valve apparatus closed. The principal part expansion longitudinal cross-sectional view around the pilot valve which shows the state which the pilot valve of the flush valve apparatus opened. The expanded longitudinal cross-sectional view around the pilot valve which shows the state which opened the flash valve apparatus manually. The figure which shows the system block diagram of a flow control valve. The flowchart which shows the processing content of the control program processed when displaying the flow volume with respect to a flow counter. The flowchart which shows the processing content of the control program processed in monitoring a door lock. The flowchart which shows the processing content of the control program processed when notifying the malfunctioning of a flash valve apparatus. The flowchart which shows the processing content of the control program performed within a control apparatus, when correct | amending the flow volume which should be discharged. The system block diagram of the flow control valve provided with two or more flash valve apparatuses. The flowchart which shows the processing content of the control program performed within a control apparatus when calculating water saving data.

Preferred embodiments of the present invention will be described below with reference to the drawings.
In this embodiment, a flow control device (hereinafter referred to as a flush valve device) having a flush valve as a water stop valve for a toilet will be described as an example.

  First, as shown in the overall longitudinal sectional view of FIG. 3, the flush valve device 1 includes a first valve housing 10 and a second valve housing 40 connected by a sleeve 2 and an external housing connected to a second valve housing 40. 200.

  The first valve housing 10 includes an inlet side block 11 and an outlet side block 12. The inlet side block 11 has an inlet 13 at a lower portion, and an inlet pipe 14 is connected to the inlet 13. A check valve 15 that opens and closes by the pressure of the washing water supplied from the inflow pipe 14 is installed in the inlet 13 while being biased in the closing direction by a coil spring 15a. A strainer 80 is accommodated in the upper part of the inlet side block 11.

  An outer housing 200 having an outlet 16 at one end and the other end connected to the first valve housing 10 is provided at the upper part of the outlet side block 12. The outlet 16 is connected to an outflow pipe (not shown) that leads to the outlet of the toilet. Wash water that flows out of the first valve housing 10 reaches the outflow pipe through the external housing 200 and is discharged to the toilet. Become.

  The outer housing 200 includes an impeller 201 provided in a path leading to the outlet 16, a power generation rotor (power generation body) connected to the rotation shaft of the impeller 201, and a magnet that surrounds the power generation rotor. A unit 205 is provided, and the power generation unit 205 generates power by receiving a flow of cleaning water from the first valve housing 10 to the outlet 16. In addition, a flow meter storage chamber 18 is formed in the lower part of the outlet side block 12, and a flow meter unit 81 is stored therein.

As shown in FIG. 4, the flow meter unit 81 includes a rotary impeller 83 that is rotatably supported by the casing 82 and rotates with the flow of cleaning water, and a hall element 84 that is installed in the rotary impeller 83. The change in the magnetic force detected by the rotation of the hall element 84 that rotates integrally with the rotary impeller 83 is recognized as a pulse signal, and the pulse is counted by the pulse counter 85 installed in the outlet side block 12. The counted pulses are output to the control device 100 electrically connected to the flow meter unit 81, and the control device 100 converts the washing water flowing through the flow meter storage chamber 18 from the number of pulses. It is designed to measure.

  The connection structure of the inlet side block 11 and the outlet side block 12 is as follows. As shown in FIG. 4, the small-diameter portion 19 provided at the tip of the inlet-side block 11 is inserted into the lower portion of the outlet-side block 12, and the space between the small-diameter portion 19 and the outlet-side block 12 is sealed with a seal ring 20. ing. Annular grooves 21 and 22 are formed in the upper outer peripheral surface of the inlet side block 11 and the lower outer peripheral surface of the outlet side block 12, respectively. The grooves 21 and 22 have a U-shaped longitudinal section and are semicircular in plan view. A pair of left and right connecting rings 23 and 24 having an arc shape are inserted so as to span the inlet side block 11 and the outlet side block 12 respectively. A cylindrical sleeve 25 screwed into the inlet side block 11 is fitted on the outside of the connection rings 23 and 24 to prevent the connection rings 23 and 24 from falling off.

  In this connected state, the flow meter unit 81 and the strainer 80 in the storage chamber 18 are sandwiched between the inner wall of the storage chamber 18 and the tip surface of the small diameter portion 19. In addition, it is preferable that an elastic spacer is interposed between the distal end surface of the small diameter portion 19 and the strainer 80 because manufacturing errors and assembly errors can be absorbed.

  Inside the outlet side block 12 of the first valve housing 10, a low pressure chamber 26 connected to the outer housing 200 reaching the outlet 16, and a main valve formed to connect to the low pressure chamber 26 and surround the low pressure chamber 26. A chamber 27 is provided, and a valve seat 28 is formed between the low pressure chamber 26 and the main valve chamber 27. The main valve chamber 27 is connected to the storage chamber 18.

  As shown in FIG. 1, a stepped portion 29 is formed on the upper outer peripheral surface of the outlet side block 12, and a small diameter portion 30 is formed above the stepped portion 29. The outlet side block 12 is formed with a first bypass passage 31 having one end opened to the outer peripheral surface of the small diameter portion 30 and the other end opened to the low pressure chamber 26.

  On the other hand, a stepped portion 41 is also formed on the outer peripheral surface of the lower portion of the second valve housing 40, a small diameter portion 42 is formed below the stepped portion 41, and a smaller diameter cylindrical portion 43 extends from the lower portion of the small diameter portion 42. Yes. The cylindrical portion 43 is screwed into the small diameter portion 30 of the outlet side block 12 so that the second valve housing 40 is connected and fixed to the first valve housing 10. A space between the small diameter portion 30 of the first valve housing 10 and the cylindrical portion 43 of the second valve housing 40 is sealed with a seal ring 44.

  The cylindrical portion 43 of the second valve housing 40 has a valve sliding hole 45, and the main control valve 70 is accommodated in the valve sliding hole 45 so as to be movable in the vertical direction in the figure. A seal ring 71 that seals between the main control valve 70 and the valve sliding hole 45 is fixed, and the seal ring 71 slides on the valve sliding hole 45. A space surrounded by the valve sliding hole 45 and the main control valve 70 constitutes a pressure chamber 46.

  A packing 72 is attached to the main control valve 70 so as to be seated and separated from the valve seat 28 of the first valve housing 10. The main control valve 70 is seated on the valve seat 28, and the low pressure chamber 26 and the main valve chamber 27. And the low pressure chamber 26 and the main valve chamber 27 are made to communicate with each other by separating from the valve seat 28. The main control valve 70 is urged in a direction approaching the valve seat 28 (downward in the drawing) by a coil spring 73 provided between the main valve 70 and the second valve housing 40, and is normally seated on the valve seat 28. . The main control valve 70 has a communication passage 74 that allows the main valve chamber 27 and the pressure chamber 46 to communicate with each other.

The small diameter portion 30 of the first valve housing 10 and the small diameter portion 42 of the second valve housing 40 have the same outer diameter, and the sleeve 2 is fitted outside the small diameter portions 30 and 42. Both end portions of the sleeve 2 abut against the stepped portion 29 of the first valve housing 10 and the stepped portion 41 of the second valve housing 40, respectively.

  A gap is provided between the outer peripheral surface of the small diameter portions 30 and 42 and the inner peripheral surface of the sleeve 2, and the small diameter portions 30 and 42 and the sleeve 2 are sealed by seal rings 32 and 47. . The seal ring 32 is disposed below the first bypass passage 31. The space between the seal rings 32 and 47 is a third bypass passage 3.

  As shown in FIG. 5, a recess 48 is formed in the upper part of the second valve housing 40, and a through-hole 49 that penetrates the pressure chamber 46 and a bottomed sliding hole 50 are provided below the recess 48. It extends parallel to. The lower end of the through hole 49 is a tapered hole 49a that expands downward.

  The second valve housing 40 includes a first passage 51 that communicates the through hole 49 and the sliding hole 50, a first opening that opens to the sliding hole 50, and the other end that opens to the outer peripheral surface of the small diameter portion 42. Two passages 52 are formed.

  Further, the movable body 53 is accommodated in the recess 48 so as to be movable in a direction approaching and separating from the second valve housing 40 (vertical direction in the figure). The movable body 53 is urged by a coil spring 54 in a direction away from the second valve housing 40 (upward in the drawing), and an upper limit position is restricted by a stopper 55 fixed to the second valve housing 40.

  On the lower surface of the movable body 53, a hollow first cylindrical body 56 that is slidably inserted into the through hole 49 and a hollow second cylindrical body 57 that is slidably inserted into the sliding hole 50. Is fixed. A gap is provided between the outer peripheral surface of the first cylindrical body 56 and the inner peripheral surface of the through hole 49 so as to allow the flow of cleaning water. The through hole 49 is sealed with seal rings 58a and 58b. Further, the second cylindrical body 57 and the sliding hole 50 are sealed with a seal ring 59.

  Inside the movable body 53, there is formed a passage 53a that connects the hollow portion 56a of the first cylindrical body 56 and the hollow portion 57a of the second cylindrical body 57, and the passage 53a can be blocked by the pilot valve 60. Has been. The pilot valve 60 is controlled to open and close by an electromagnetic drive unit 61 fixed to the upper part of the movable body 53.

  That is, the electromagnetic drive unit 61 has a plunger 63 that is driven up and down by a solenoid coil 62, and a pilot valve 60 is provided at the tip of the plunger 63. Normally, the solenoid coil 62 is in a non-energized state, and at this time, the pilot valve 60 blocks the passage 53a. When the solenoid coil 62 is energized, the plunger 63 is attracted upward, and as a result, the pilot valve 60 is opened to allow the passage 53a to communicate.

  In this embodiment, the tapered hole 49a, the hollow portion 56a of the first cylindrical body 56, the passage 53a of the movable body 53, the hollow portion 57a of the second cylindrical body 57, the sliding hole 50, A second bypass passage 64 is constituted by the two passages 52.

  In addition, a cover 65 that covers the movable body 53 and the electromagnetic drive unit 61 is fixed to the second valve housing 40, and a push fixed to the upper part of the electromagnetic drive unit 61 from an upper center hole of the cover 65. The button 66 protrudes.

Next, the operation principle of the flush valve device 1 will be described. First, when the cleaning water is not discharged, the solenoid coil 62 of the electromagnetic drive unit 61 is in a non-energized state, and the pilot valve 60 blocks the passage 53 a in the movable body 53. Therefore, the pressure chamber 46 communicating with the main valve chamber 27 via the communication passage 74 of the main control valve 70 has the same pressure as that in the main valve chamber 27. As a result, the main control valve 70 is seated on the valve seat 28 by the force based on the biasing force of the coil spring 73 and the pressure difference between the low pressure chamber 26 and the main valve chamber 27, thereby connecting the low pressure chamber 26 and the main valve chamber 27. Cut off. This state is the closed state of the flush valve device 1, and the washing water is not discharged. In this state, the check valve 15 also shuts off the inlet 13.

  Subsequently, when the washing water should be discharged, the solenoid coil 62 is energized, the pilot valve 60 is opened, the passage 53a in the movable body 53 is communicated, and the second bypass passage 64 is communicated. As a result, the pressure chamber 46 and the low pressure chamber 26 communicate with each other through the second bypass passage 64, the third bypass passage 3, and the first bypass passage 31, and the washing water in the pressure chamber 46 flows to the low pressure chamber 26. The pressure in the pressure chamber 46 decreases. The force based on the pressure difference between the pressure chamber 46 and the main valve chamber 27 is superior to the biasing force of the coil spring 73 and the force based on the pressure difference between the low pressure chamber 26 and the main valve chamber 27, and the main control valve 70 is moved upward. The low pressure chamber 26 and the main valve chamber 27 are communicated with each other by being separated from the valve seat 28. Then, the washing water in the main valve chamber 27 passes through the low pressure chamber 26 and flows to the toilet through the outlet 16 and the outflow pipe.

  Further, when the pressure in the main valve chamber 27 decreases due to the discharge of the cleaning water, the check valve 15 is pushed against the urging force of the coil spring 15a by the pressure of the cleaning water on the inflow pipe 14 side to be in the open state. Become. As a result, the route from the inlet 13 to the outlet 16 communicates, and the wash water is discharged to the toilet through the route from the inlet 13 to the outlet 16.

  At this time, the control device 100 calculates the flow rate of the wash water from the number of pulses acquired by the flow meter unit 81 by the flow rate calculation circuit incorporated therein, and the discharge stop flow rate (for example, the target discharge flow rate) at which the discharge should be stopped. When the flow rate reaches 2/3 of the flow rate, the energization of the solenoid coil 62 of the electromagnetic drive unit 61 is cut off by the action of the discharge control circuit provided in the control device 100. Therefore, the pilot valve 60 blocks the passage 53a in the movable body 53, and as a result, the second bypass passage 64 is blocked. Therefore, the pressure chamber 46 becomes equal to the main valve chamber 27 again, and the main control valve 70 Sit on the seat 28. Therefore, the low pressure chamber 26 and the main valve chamber 27 are shut off, and the discharge of the cleaning water is stopped. Further, when the discharge of the washing water is stopped, the inside of the main valve chamber 27 becomes equal in pressure to the inside of the inflow pipe 14, so that the check valve 15 is pushed by the urging force of the coil spring 15a to shut off the inlet 13.

  In the flash valve device 1, the washing water can be manually discharged without controlling the energization of the solenoid coil 62. That is, when the solenoid coil 62 is not energized, the passage 53a is blocked. If the push button 66 is pushed downward against the biasing force of the coil spring 54 in this state, the movable body 53 is lowered. The first cylinder 56 and the second cylinder 57 descend through the through hole 49 or the sliding hole 50, respectively. As shown in FIG. 7, when the lower seal ring 58b of the first cylindrical body 56 enters the tapered hole 49a, the tapered hole 49a becomes the outer peripheral surface of the first cylindrical body 56 and the inner peripheral surface of the through hole 49. The first passage 51 communicates with the third bypass passage 3 via the sliding hole 50 and the second passage 52. As a result, the pressure chamber 46 can be communicated with the low pressure chamber 26 while the pilot valve 60 is closed, the main control valve 70 is separated from the valve seat 28, and the main valve chamber 27 is communicated with the low pressure chamber 26. The washing water can be discharged from the inlet 13 to the outlet 16.

  When the operator releases his / her hand from the push button 66 and causes the movable body 53 to spring back by the coil spring 54, the taper hole 49a and the first passage 51 are again blocked by the seal ring 58b, and the pressure chamber 46 Therefore, the main control valve 70 can be seated on the valve seat 28 and the outflow of the washing water can be stopped.

Next, the above-described control device 100 will be described with reference to FIGS.
The control device 100 compares the calculated flow rate with a predetermined target discharge rate in addition to a flow rate calculation circuit and a discharge control circuit required for controlling the solenoid coil 62 provided in the electromagnetic drive unit 61, A flow rate difference calculation circuit for calculating excess / deficiency and a correction circuit for correcting the flow rate to be discharged based on the flow rate calculated by the flow rate difference calculation circuit are provided. In addition, the control device 100 is provided with an output unit 100 a that outputs the flow rate calculated by the flow rate calculation circuit to the outside of the control device 100.

  In addition, the control device 100 is connected to a door sensor 300 that detects the lock state of the toilet door, and is configured (measurement unit) to measure the toilet use time of the toilet user based on a signal from the door sensor 300. Yes. Then, the control device 100 determines that the toilet use time exceeds 150 seconds, and determines that it is a heavy use (stool defecation), and if the toilet use time is less than 150 seconds, determines that the toilet use time is a small use (urine defecation). It has become.

In addition, the output unit 100a has a flow rate counter 102 that displays the flow rate that is output every time the cleaning water is discharged, together with the date and time data that the discharge has been performed, an indicator 103 that notifies the malfunction of the flush valve device 1, and the like. Is connected.
The control device 100 includes an I / O unit that inputs and outputs signals, a CPU (Central Processing Unit) that performs various data processing, a RAM (Randum Access Memory) and a ROM (Read Only Memory) that store data, And a bus for connecting them.

  FIG. 9 is a flowchart showing the processing contents of the control program executed in the control device 100 when the flow rate counter 102 is displayed. FIG. 10 is a flowchart showing the processing contents of a control program that is processed when the state of the door sensor 300 is monitored. FIG. 11 is a flowchart showing the processing contents of the control program processed when notifying the malfunction of the flush valve device 1. FIG. 12 is a flowchart showing the processing contents of a control program executed in the control device 100 when the flow rate to be discharged is corrected. Furthermore, FIG. 14 is a flowchart showing the processing contents of a control program executed in the control device 100 when water saving result data is calculated.

  As shown in FIG. 9, in the flow rate display on the flow rate counter 102, first, the flow rate data to be output is associated with the date and time data on which the discharge accompanied with the output is performed (S 101). The flow rate data associated with the data is temporarily stored in the storage unit 106 in the control device 100 (S102).

  On the other hand, as shown in FIG. 10, the control device 100 monitors the signal from the door lock sensor 300 (S201), and when the door is locked, the storage unit associates the information on the door lock ON with the date / time data. 106 (S202). Furthermore, the control device 100 monitors a signal from the door lock sensor 300 (S203), and stores the door lock OFF information in the storage unit 106 in association with the date / time data when the door lock is released.

  The control device 100 accepts an operation on an operation panel provided in the control device 100 in order to select a data type to be output to the output unit 100a (S103). In the present embodiment, the types of data to be output include cumulative data of cleaning water discharged in a unit period, flow rate and number of discharges used by one user, and discharge by one discharge. It is possible to select the flow rate data (including data on the amount of washing water for large use and the amount of washing water for small use).

For example, in the case where the accumulated output of the wash water discharged in the unit period is required, the data associated with the date and time to be accumulated is associated among the data stored in the storage unit 106 of the control device 100. Is read (S104), and the control device 100 reads the read data (
The flow rate is accumulated (S105) and output to the output unit 100a (S106).
In addition, when the operation of the flush water discharge is performed by the user, the control device 100 discharges a large amount of water (for example, 10 liters) as the first water amount when the toilet use time is 150 seconds or more. When the use time is less than 150 seconds, the control valve is controlled so as to discharge a small amount of water (for example, 6 liters) as the second amount of water.

As shown in FIG. 11, in order to notify the malfunction of the flush valve device 1, first, the target discharge flow rate is read from the storage unit 106 of the control device 100 (S601), and the calculated flow rate and a predetermined target discharge flow rate are read out. And the flow rate difference is calculated (S602). Further, the calculated flow rate difference is compared with the allowable value (error flow rate) to be allowed (S603), and if the allowable value is exceeded, the output unit 100a is provided to notify the malfunction of the flush valve device 1. The indicated indicator 103 is turned on (S604).
The target discharge flow rate determined in advance here differs depending on various specifications, and may be, for example, a flow rate used for one discharge or a flow consumed for multiple discharges. Any data can be used as long as it can be compared with the data relating to the flow rate acquired as a sample in an arbitrary period.

  When correcting the flow rate to be discharged as shown in FIG. 12, first, the target discharge flow rate is read from the storage unit 106 of the control device 100 (S701), and the calculated flow rate and the predetermined target discharge flow rate are determined. And the flow rate difference is calculated (S702). Further, the calculated flow rate difference is compared with an allowable value (error flow rate) to be allowed (S703). If the allowable value is exceeded, the flow rate to be discharged is corrected, for example, for control purposes. The discharge stop flow rate is updated to a new value (S704).

  That is, for example, when the target discharge flow rate is 10 liters, the discharge stop flow rate is 7 liters, and the flow rate actually measured by the flow meter unit 81 is 11 liters, if the allowable value is 0.5 liters, the discharge will be excessive. Therefore, the discharge stop flow rate is reset to 6 liters. For example, when the target discharge flow rate is 6 liters, the discharge stop flow rate is 4 liters, and the flow rate actually measured by the flow meter unit 81 is 5 liters, the discharge is too small if the allowable value is 0.5 liters. Therefore, the discharge stop flow rate is reset to 4.5 liters.

  Then, after resetting the discharge stop flow rate, the target discharge flow can be compared with the actually measured flow rate, and correction can be performed so as to be closer to the target discharge flow rate. Here, the smaller the allowable value, the smaller the fluctuation value of the discharge stop flow rate (the difference between the previous discharge stop flow rate and the updated discharge stop flow rate), but the correction count tends to increase. It is possible to approximate the discharge flow rate and the actual flow rate very closely.

  Next, as shown in FIG. 14, in order to obtain specific water saving data, the control unit 100 recognizes an arbitrary period specified by the input date data (S801), and the flush valve in the period. The number of discharge operations of the apparatus 1 is totaled based on the data in the storage unit 106, and a reference water amount is calculated by multiplying this number by a first water amount (for example, 10 liters) (S802). Next, the control unit 100 aggregates the flow rates actually measured by the flow meter unit 81 during the arbitrary period based on the data in the storage unit 106 (S803). Furthermore, the control unit 100 subtracts the actual measured water amount calculated in step 803 from the reference water amount calculated in step 802, and calculates the amount of water saved (S804). And the control part 100 outputs water saving data to the exterior from the output part 100a (S805).

In calculating the reference water amount, not the so-called target discharge flow rate but a value calculated by the flow rate calculation circuit in the initial setting of the flow rate control device may be used. That is, the flow rate that would have been discharged without a correction circuit (for example, the target discharge flow rate is 10 liters and the actual discharge (measured flow rate is 11 liters)) is multiplied by the number of operations to obtain the reference water amount. Good.

  Thus, the flow control valve shown in the present embodiment includes an output unit 100a that outputs the calculated flow rate to the outside. Therefore, when maintaining the flow control valve, the flow rate output to the output unit 100a can be grasped by referring to the flow rate counter 102 provided in the output unit 100a, and can be used for maintenance of the flow control valve. is there.

  Further, in the present embodiment, since the flow rate to be output and the time or date when the discharge with the output is performed are stored in association with each other, not only the grasp of the flow rate but also the date It is possible to acquire accurate information associated with the association with the information.

  Further, since the output unit 100a can also output the accumulated flow rate of the fluid discharged per unit period, in grasping the flow rate, for example, in units of one week or one day time, It becomes possible to grasp the flow rate of the fluid discharged per unit period. Therefore, it is possible to accurately grasp the day of the week and the time zone when the discharge flow rate increases.

  In addition, since the output unit 100a is provided with the indicator 103 for notifying the fact that there is an excess or deficiency in the flow rate of the discharged fluid, it is possible to easily grasp the excess or deficiency of the fluid supplied to the discharge. It becomes possible.

  Further, the control device 100 compares the calculated flow rate with a predetermined target discharge flow rate to calculate the excess or deficiency of the flow rate, and based on the flow rate calculated by the flow rate difference calculation circuit. Since the correction circuit for correcting the flow rate to be discharged is provided, the flow rate control valve can discharge an appropriate amount even if some trouble occurs.

  Note that the above-described embodiment is merely an embodiment, and details thereof can be appropriately changed according to various specifications.

  For example, as shown in FIG. 13, in the configuration in which the inflow pipe 14 extending from the inlet 13 of each flush valve device 1 is connected to a common water supply pipe 206, the flow rate is output for each flush valve device 1. A configuration in which the flow rate of the flash valve device 1 is summed and output is also conceivable.

  In the above-described embodiment, the numerical value of the flow rate discharged at a time is adopted as the target discharge flow rate, but it is not always necessary. For example, the flow rate difference for a flow rate discharged by multiple discharges is targeted. A configuration such as seeking is also conceivable. More specifically, the flow rate difference can also be obtained by comparing the flow rate consumed by 10 discharges (target discharge flow rate × 10 times) and the flow rate actually consumed by 10 discharges (cumulative data). .

  In addition, in the flow rate counting and display function in the flow rate control system of the present embodiment, the flow rate between the flow rate control valve and a general automatic water faucet provided in a wash basin or the like is counted and displayed, or individually. It can also be counted and displayed. Moreover, in order to measure the time which a toilet user takes to defecate, the seating sensor of a toilet bowl can also be utilized besides the measurement based on a door sensor. That is, it is good also as a structure which installs the human detection sensor provided with an infrared rays detection apparatus etc. in the toilet bowl vicinity, measures the time after a user sits on a toilet bowl until the start of supply of washing water, and grasps the time concerning a defecation.

  In addition, since the flow control valve with this configuration can be retrofitted to existing facilities, it has only a water meter installed in the water supply main. A flow control valve can be newly provided. As described above, various configurations described in this embodiment can be changed as appropriate.

  The flow control system of the present invention can be used as a cleaning water control system in a toilet.

DESCRIPTION OF SYMBOLS 1 Flush valve apparatus 2 Sleeve 3 Bypass passage 10 Valve housing 11 Inlet side block 12 Outlet side block 13 Inlet 14 Inflow pipe 15 Check valve 15a Coil spring 16 Outlet 17 Outlet pipe 18 Storage chamber 18 Flowmeter storage chamber 19 Small diameter part 20 Seal Rings 21 and 22 Grooves 23 and 24 Connection ring 25 Sleeve 26 Low pressure chamber 27 Main valve chamber 28 Valve seat 29 Step portion 30 Small diameter portion 31 Bypass passage 32 Seal ring 40 Valve housing 41 Step portion 42 Small diameter portion 43 Tube portion 44 Seal ring 45 Valve sliding hole 46 Pressure chamber 48 Recess 49 Through hole 49a Taper hole 50 Sliding hole 51 Passage 52 Passage 53 Movable body 53 Passage 53a Passage 54 Coil spring 55 Stopper 56 Cylindrical body 56a Hollow part 57 Cylindrical body 57a Hollow parts 58a, 58b Seal ring 59 Seal 60 Pilot valve 61 Electromagnetic drive unit 62 Solenoid coil 63 Plunger 64 Bypass passage 65 Cover 66 Push button 70 Main control valve 71 Seal ring 72 Packing 73 Coil spring 74 Communication passage 80 Strainer 81 Flow meter unit 82 Casing 83 Rotating wheel 84 Hall Element 85 Pulse counter 100 Control device 100a Output unit 101 Inverter 102 Flow rate counter 103 Indicator 104 Battery 106 Storage unit 200 External housing 201 Impeller 205 Power generation unit 206 Water supply pipe 300 Detection unit

Claims (4)

A system for controlling wash water supplied to a toilet in a toilet,
A measuring unit that measures the time it takes for the toilet user to defecate,
A control valve provided in the path from the inlet to the outlet;
A detection unit that outputs the presence or absence of fluid flow from the inflow port to the outflow port with an electrical signal; and
A flow rate calculation unit that calculates the flow rate of the fluid discharged through the outlet based on the electrical signal acquired by the detection unit;
A control unit for controlling the opening and closing operation of the control valve based on whether or not the flow rate calculated by the flow rate calculation unit has reached the discharge stop flow rate to stop the discharge;
A use time detection unit that detects the toilet use time per toilet user,
The control unit controls the control valve to discharge the first amount of water when the time required for the toilet user's defecation measured by the measurement unit is equal to or greater than a predetermined value, and when the time is less than the predetermined value, Controlling the control valve to discharge with a second amount of water smaller than the amount of water of 1,
The control unit further includes a storage unit that stores the number of discharges by the first amount of water and the number of discharges by the second amount of water as data, and an output unit that outputs the data stored in the storage unit,
The flow rate control system, wherein the flow rate discharged from the control valve within the time detected by the usage time detection unit and the number of discharges are stored as the data in the storage unit. The control unit compares the calculated flow rate with a predetermined target discharge rate when discharging with the first amount of water and discharging with the second amount of water . The flow rate control system according to claim 1, further comprising: a flow rate difference calculation circuit that calculates excess or deficiency; and a correction circuit that corrects a flow rate to be discharged based on the flow rate calculated by the flow rate difference calculation circuit. The flow rate control system according to claim 2 , further comprising a notifying unit for notifying that when the calculated flow rate is excessive or insufficient. Wherein the control unit is configured to the value of the pre-correction first flow rate that is calculated when the discharge was carried out in water, a reference flow rate obtained by multiplying the number of operation times of the control valve during a predetermined period, the predetermined The flow rate control system according to claim 2 or 3 , wherein the water saving data is calculated by subtracting a flow rate actually discharged from the control valve calculated by the flow rate calculation unit in a period.

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