WO2019021556A1 - 採水ディスペンサー及びその補正方法 - Google Patents

採水ディスペンサー及びその補正方法 Download PDF

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Publication number
WO2019021556A1
WO2019021556A1 PCT/JP2018/016629 JP2018016629W WO2019021556A1 WO 2019021556 A1 WO2019021556 A1 WO 2019021556A1 JP 2018016629 W JP2018016629 W JP 2018016629W WO 2019021556 A1 WO2019021556 A1 WO 2019021556A1
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WO
WIPO (PCT)
Prior art keywords
volume
flow rate
control valve
water
flow
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Application number
PCT/JP2018/016629
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English (en)
French (fr)
Japanese (ja)
Inventor
岡部　修一
尾崎　大介
杏助 松村
隆文 星野
正崇 飛彈
清吉 浅野
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オルガノ株式会社
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Publication date
Application filed by オルガノ株式会社 filed Critical オルガノ株式会社
Priority to CN201880047964.8A priority Critical patent/CN110914650B/zh
Publication of WO2019021556A1 publication Critical patent/WO2019021556A1/ja

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F13/00—Apparatus for measuring by volume and delivering fluids or fluent solid materials, not provided for in the preceding groups

Definitions

  • the present invention relates to a water dispenser connected to a pure water production apparatus and the like to discharge pure water and the like according to demand, and in particular, correction of the water collection amount by the water dispenser when the water dispenser has a quantitative water collecting function About.
  • the water dispenser includes a nozzle for discharging pure water, and an open / close valve provided in a path of pure water to the nozzle to supply pure water to the nozzle and to shut off the supply.
  • the water dispenser is generally provided at a location apart from the main body of the pure water producing apparatus, and connected to the pure water outlet of the pure water producing apparatus main body by piping.
  • a solenoid valve is often used as the on-off valve, and when using a solenoid valve, the solenoid valve is controlled by a push button switch that can be operated by a finger or a foot switch that can be operated by a foot to discharge pure water from the nozzle . Furthermore, in the water sampling dispenser, a combination of a flow sensor and a solenoid valve is specified by opening the solenoid valve until the accumulated value of the flow measured by the flow sensor reaches a specified value when one switch operation is performed. Many are equipped with a quantitative water collection function that enables the collection of a volume of pure water.
  • the solenoid valve is opened and closed based on the detection result of the flow sensor, but the discharge amount and the actual intended discharge rate due to the inherent detection error of the flow sensor And the discharge amount of the liquid may be different. Therefore, the relationship between the measured value by the flow rate sensor and the actual flow rate is checked in advance so that the liquid can be discharged with the discharge rate specified by the user or set in advance in the water collection dispenser. It is necessary to control the solenoid valve by correcting the measured value by the flow rate sensor based on
  • Patent Document 1 describes a method of calculating a correction coefficient for a flow meter that outputs a pulse according to a flow rate passed, and for a specific non-zero flow rate, the method for calculating the flow rate according to the number of pulses from the flow meter It is disclosed that the ratio of the flow rate flowing through the flow meter is obtained and the ratio is made to be the correction coefficient K. Once the correction factor K is determined, it is sufficient to use the flow rate based on the pulse value from the flow meter multiplied by the correction factor K as the measurement value of the flow rate.
  • An object of the present invention is to provide a water dispenser having a quantitative water collecting function, which can perform water collection with a high accuracy volume, and a correction method thereof.
  • the water collection dispenser of the present invention is a water collection dispenser used for water collection of pure water, and is provided in a pipe which is supplied with pure water from a pure water producing device and is communicated with a nozzle for discharging pure water, and piping
  • the first amount which is the amount actually collected by the first control and the second amount which is the amount actually collected by the second control are input, Based on the second volume, the first amount and the second amount A process of calculating two parameters specifying a linear expression representing the relationship between the detection result of the quantity sensor and the volume after correction, and the correction result of the flow sensor by the two parameters
  • the correction method of the water dispenser according to the present invention includes the steps of supplying the pure water from the pure water production apparatus and connecting the nozzle communicating with the nozzle for discharging the pure water, the flow control valve provided in the pipe, and the flow control valve in the pipe.
  • Express the relationship between the detection result and the corrected volume Has a process for calculating the two parameters identifying the following equation, the.
  • two parameters for specifying the linear expression representing the relationship between the detection result of the flow rate sensor provided in the water dispenser and the volume after correction are calculated, and the correction is performed based on this.
  • the water sampling can be performed with high accuracy as compared to the case of so-called one-point correction based on.
  • FIG. 1 is a flow sheet showing a state in which the water dispenser of the embodiment of the present invention is combined with a pure water manufacturing apparatus.
  • the pure water production apparatus 50 includes a pure water production unit 51 which is supplied with tap water or the like to produce pure water, and a main control unit 52 which controls the operation of the pure water production unit 51.
  • the pure water production unit 51 comprises, for example, a primary pure water production apparatus for producing primary pure water from feed water, provided with a reverse osmosis membrane and an ion exchange apparatus, an ion exchange apparatus, an ultrafiltration membrane, an ultraviolet oxidation apparatus, etc. It comprises a subsystem having a circulating purification system to further increase the purity of primary pure water. Although various sensors (not shown), a pump (not shown), a valve (not shown), etc.
  • the main controller 52 receives signals from the sensors, By controlling a pump (not shown) and a valve (not shown) based on the operation of the pure water production unit 51 is controlled.
  • a plurality of outlet ports 53 for supplying pure water to the water dispenser 10 are connected to the outlet of the pure water producing unit 51.
  • the outlet port 53 is a port connected to the water dispenser 10 in the pure water production apparatus 50, and the water dispenser 10 is connected to any outlet port 53 by, for example, a flexible pipe 55. Be done.
  • three outlet ports 53 are provided, and a total of three water dispensers 10 are connected to the pure water producing device 50 by connecting the water dispensers 10 to each of them.
  • the number of outlet ports 53 is not limited to three, and the number of water dispensers 10 connected to the pure water producing apparatus 50 can be arbitrarily increased or decreased within the range of the number of outlet ports 53.
  • FIG. 2 shows the appearance of the water dispenser 10.
  • the water dispenser 10 is roughly divided into a head portion 10a, a main body portion 10b, and a support column 10c extending vertically upward from the main body portion 10b and removably holding the head 10a.
  • the main body portion 10 b is connected by a flexible pipe 14.
  • a head portion 10a which can be held by a user and moved to a desired position is provided, and a nozzle 16 which actually becomes a pouring spout of pure water is provided in the head portion 10a.
  • the head portion 10a is provided with a handle 25 or a handle for the user to hold.
  • the holding position of the head 10a in the support 10c can be changed.
  • the post 10c needs to have a sufficient length.
  • the head portion 10 a discharges from the nozzle 16 pure water sent from the main body portion 10 b through the pipe 14, and as shown in FIG. 1, a flow path connected to the pipe 14 in addition to the nozzle 16.
  • the nozzle 16 is provided at the end of the flow path 15.
  • the head unit 10a includes a switch 18 operated by the user in order to discharge pure water according to the user's demand.
  • the head 10 a is provided with a button 26 at a position where the user holding the handle 25 can easily operate it with his finger.
  • the button 26 is mechanically connected to the switch 18 (see FIG. 1), and the switch 18 is operated by operating the button 26.
  • a pipe 11 is provided in the main body 10b, one end of the pipe 11 is connected to a pipe 55 from the pure water producing apparatus 50, and the other end is connected to a pipe 14 to the head 10a.
  • the flow rate sensor 12 and the flow rate control valve 13 are provided in the pipe 11 in this order from the upstream side, that is, from the side closer to the pure water production apparatus 50.
  • the control unit 20 that controls the operation of the water dispenser 10 and the operation panel 19 connected to the control unit 20 are provided in the main body unit 10 b.
  • the flow rate control valve 13 is, for example, an electromagnetic type, and can control the opening and closing of the valve according to a signal from the control unit 20 and can change the flow rate of pure water passing through the valve.
  • the flow rate sensor 12 is, for example, a pulse type that outputs an electric pulse each time a fixed volume (volume) of liquid flows.
  • the operation panel 19 receives, for example, settings of water collection amount and water collection mode from the user, and performs necessary display for the user.
  • the water sampling mode includes an arbitrary water sampling mode enabling water sampling of an arbitrary volume, and a water sampling mode based on a quantitative water sampling function, wherein quantitative water ejection from a nozzle 16 of a volume specified by the user is performed. There may be a water mode, and other water sampling modes may be provided.
  • the control unit 20 controls the whole of the water dispenser 10, for example, receives a water collection request from the user input through the switch 18 of the head unit 10a, and the water collection mode is a quantitative water collection mode. In some cases, by opening the flow control valve 13 until the accumulated value of the flow detected by the flow sensor 12, that is, the volume value becomes the set value, the amount of pure water indicated by the set value is transferred to the head 10a. Control to send water. Details of water sampling in the quantitative water sampling mode will be described later. When the water sampling mode is the arbitrary volume water sampling mode, the control unit 20 performs control to open the flow control valve 13 only while the switch 18 is operated.
  • the control unit 20 In the case of the arbitrary amount water sampling mode, the user can designate the flow rate of pure water from the nozzle via the operation panel 19, that is, the discharge amount per unit time, and the control unit 20 becomes the designated flow rate. To control the flow control valve 13. This is because there are cases where speed is important, such as water collection to a washing bottle, and accuracy of water collection operation, such as water collection up to the marked line to the measuring flask, is important. Furthermore, the control unit 20 is connected to the main controller 52 of the pure water producing apparatus 50 by a wire shown by a broken line in the figure, and the main controller 52 produces information about the operating condition of the pure water producing apparatus 50, in particular, Acquire quality data such as total organic carbon (TOC) value, resistivity, and temperature value of pure water. The control unit 20 displays the acquired water quality data on the operation panel 19 in a predetermined format.
  • TOC total organic carbon
  • the pipe 11, the flow sensor 12, the flow control valve 13, and the control unit 20 are provided inside the housing 21 shown in FIG. 2.
  • the operation panel 19 has a flat shape, and is attached to the housing 21 via a hinge 23 at one end thereof.
  • a touch panel 22 in which a liquid crystal display panel and a touch sensor are integrated is provided on one surface of the operation panel 19.
  • the touch panel 22 functions as a display unit for displaying to the user, and receives input from the user when the user touches a predetermined position on the touch panel 22.
  • the control unit 20 opens the flow control valve 13 and counts the pulses from the flow sensor 12 and passes through it.
  • the volume is calculated, and when the passing volume reaches the set value L, the flow control valve 13 is closed. Therefore, the accuracy of the volume of pure water discharged from the nozzle 16 depends on the accuracy of the flow rate sensor 12.
  • a correction parameter for the pulse count value from the flow rate sensor 12 is determined.
  • the volume X represented by the count value of pulses from the flow sensor 12 is taken as the volume X
  • the volume after correction that better represents the volume of the liquid actually flowing through the flow sensor 12 is taken as equation (1)
  • Two correction parameters a and b are obtained so that the relationship of the linear expression shown by.
  • the water dispenser 10 is operated to discharge pure water at two different volume values, and in each case, the volume of pure water actually discharged is measured, and based on the measurement results.
  • the correction parameters a and b are obtained.
  • FIG. 3 shows a specific procedure for obtaining the correction parameters a and b.
  • the volume A 1 and the set value L in step 101 the pure water is ejected by operating the water sampling dispenser 10 at this setting value L in step 102.
  • the discharged pure water is collected, for example, in a measuring cylinder, and its volume is measured.
  • B 1 be the volume actually measured.
  • the set value L different volumes A 2 is the volume A 1, by discharging pure water by operating the water sampling dispenser 10 by the set value L in step 105, the net was discharged the volume B 2 of water is measured in step 106.
  • Based on the correction parameters a and b are determined.
  • the control unit 20 executes the processing of steps 101, 102, 104, 105, and 107 of the processing shown in FIG.
  • a message prompting the user to execute the processes of steps 103 and 106 is displayed on the screen 19, and the input from the user about the measured volumes B 1 and B 2 is accepted.
  • the set volumes A 1 and A 2 may not both be 0 and be different from each other, but one of the volumes is a water collection volume often used in this water collection dispenser 10 or a little larger than that Preferably, the other volume is a relatively small value.
  • a 2 is 0 so that a sufficient number of pulses can be obtained. It is preferable to set a value larger than 1 ⁇ V.
  • the values of the volumes A 1 and A 2 may be programmed in the control unit 20 in advance, or may be input in advance by the user. If adopted water is 1000mL often used in water sampling dispenser 10, A 1 is set to, for example, 1100 mL, A 2 is set to, for example, 100 mL.
  • steps 102 and 105 are both for discharging pure water of a volume indicated by the set value L from the nozzle 16, and are basically the same process as water collection in the quantitative water collection mode.
  • FIG. 4 is a flowchart showing a process of discharging pure water of a volume represented by the set value L. It is assumed that the setting value L has already been set.
  • the volume measurement value P is cleared, ie, made zero.
  • the volume measurement value P is a value of the volume obtained by counting pulses from the flow rate sensor 12, that is, a value before it is corrected by the correction parameters a and b.
  • the flow control valve 13 is fully opened. As a result, discharge of pure water from the nozzle 16 is started, and the flow rate sensor 12 continues to generate a pulse of flow rate measurement.
  • the control unit 20 continues counting the pulses from the flow rate sensor 12 and, as shown in step 113, a value obtained by subtracting the parameter ⁇ from the set value L and a volume measurement value P based on the counting of the pulses. Compare as needed.
  • step 113 is repeated until P ⁇ L ⁇ , that is, until the volume measurement value P reaches the set value L minus the parameter ⁇ .
  • the control unit 20 reduces the opening degree of the flow control valve 13 to reduce the flow rate of pure water flowing through the flow control valve 13.
  • L- ⁇ is a threshold for determining the timing at which the opening of the flow control valve 13 is narrowed.
  • the value of ⁇ is a positive value determined based on the size and configuration of the pipe 11, the flow rate sensor 12, and the flow rate control valve 13.
  • the value of ⁇ is set to about several percent of the set value L.
  • the pulse type can be equivalent to several tens to several hundreds of pulses.
  • ⁇ can be 70 mL.
  • step 115 the control unit 20 determines whether or not the volume measurement value P has reached the set value L, and until step S ⁇ L, ie, until the volume measurement value P reaches the set value L, step 115. repeat.
  • the control unit 20 immediately closes the flow control valve 13 completely in step 116.
  • the opening of the flow control valve 13 is narrowed in advance, no overshoot phenomenon is caused, and when the volume measurement value P reaches the set value L, the nozzle 16 of pure water is completely removed. It is possible to stop the discharge of
  • the flow rate is maximized at the start of discharge of pure water, and the flow rate is narrowed immediately before stopping the discharge, so that the discharge time can not be increased unnecessarily and with an accurate amount. Can be discharged.
  • the volume Q after correction may optionally be calculated based on the correction parameters a and b in the arbitrary water sampling mode, and the calculated value of Q Is displayed on the operation panel 19 to further enhance the convenience of the user.
  • each water sampling dispenser 10 determines the correction parameter by inputting the command of the correction parameter determination in any one of the water collection dispensers 10 It may transition to the mode for In this case, the command is transferred from the water dispenser 10 to which the command is input to the other water dispenser 10 via the main control device 52 of the pure water producing apparatus 50.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Measuring Volume Flow (AREA)
PCT/JP2018/016629 2017-07-26 2018-04-24 採水ディスペンサー及びその補正方法 WO2019021556A1 (ja)

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CN201880047964.8A CN110914650B (zh) 2017-07-26 2018-04-24 水分配器及其校正方法

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JP2017144488A JP6491279B2 (ja) 2017-07-26 2017-07-26 採水ディスペンサー及びその補正方法

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WO2021033508A1 (ja) * 2019-08-20 2021-02-25 オルガノ株式会社 使用水量管理システム

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CN114281002A (zh) * 2021-12-30 2022-04-05 上海动联信息技术股份有限公司 一种基于脉冲流量计的分酒器控制系统及方法

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JPH0719917A (ja) * 1993-03-04 1995-01-20 Matsushita Electric Ind Co Ltd 流量計
WO1999047854A1 (en) * 1998-03-13 1999-09-23 Amsco Europe Inc. Suomen Sivuliike Method and device for measuring the reject water flow in a steam generator
JP2002059161A (ja) * 2000-08-11 2002-02-26 Purwater Hanbai Kk 純水供給方法及び装置

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JP4025978B2 (ja) * 2002-03-08 2007-12-26 株式会社ササクラ オゾン水供給装置
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58223021A (ja) * 1982-06-21 1983-12-24 Oval Eng Co Ltd 器差調整回路
JPH0719917A (ja) * 1993-03-04 1995-01-20 Matsushita Electric Ind Co Ltd 流量計
WO1999047854A1 (en) * 1998-03-13 1999-09-23 Amsco Europe Inc. Suomen Sivuliike Method and device for measuring the reject water flow in a steam generator
JP2002059161A (ja) * 2000-08-11 2002-02-26 Purwater Hanbai Kk 純水供給方法及び装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021033508A1 (ja) * 2019-08-20 2021-02-25 オルガノ株式会社 使用水量管理システム
JP2021030119A (ja) * 2019-08-20 2021-03-01 オルガノ株式会社 使用水量管理システム
CN114175116A (zh) * 2019-08-20 2022-03-11 奥加诺株式会社 使用水量管理系统
CN114175116B (zh) * 2019-08-20 2023-09-19 奥加诺株式会社 使用水量管理系统

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TWI742281B (zh) 2021-10-11
CN110914650A (zh) 2020-03-24
TW201923314A (zh) 2019-06-16
CN110914650B (zh) 2020-09-11
JP2019027822A (ja) 2019-02-21
JP6491279B2 (ja) 2019-03-27

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