JP2013188682A5 - - Google Patents
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- JP2013188682A5 JP2013188682A5 JP2012056486A JP2012056486A JP2013188682A5 JP 2013188682 A5 JP2013188682 A5 JP 2013188682A5 JP 2012056486 A JP2012056486 A JP 2012056486A JP 2012056486 A JP2012056486 A JP 2012056486A JP 2013188682 A5 JP2013188682 A5 JP 2013188682A5
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本発明は、原水から前処理水を製造する前処理ユニットと、前処理水を透過水と濃縮水とに分離する膜分離装置と、原水を前記前処理ユニットに供給する原水ラインと、前処理水を前記膜分離装置に供給する前処理水ラインと、前処理水の流量を第１検出流量値として出力する第１流量検出手段と、入力された駆動周波数に応じた回転速度で駆動され、前記原水ラインを流通する原水を前記前処理ユニットに向けて圧送する第１加圧ポンプと、入力された周波数指定信号に対応する駆動周波数を前記第１加圧ポンプに出力する第１インバータと、前記第１流量検出手段から出力された前記第１検出流量値が前記膜分離装置における透過水の流量値と濃縮水の流量値との合計値に基づく第１目標流量値となるように、前記第１加圧ポンプの駆動周波数を演算し、当該駆動周波数の演算値に対する周波数指定信号を前記第１インバータに出力する第１制御部と、透過水の流量を第２検出流量値として出力する第２流量検出手段と、入力された駆動周波数に応じた回転速度で駆動され、前記前処理水ラインを流通する前処理水を前記膜分離装置に向けて圧送する第２加圧ポンプと、入力された周波数指定信号に対応する駆動周波数を前記第２加圧ポンプに出力する第２インバータと、前記第２流量検出手段から出力された前記第２検出流量値が予め設定された第２目標流量値となるように、前記第２加圧ポンプの駆動周波数を演算し、当該駆動周波数の演算値に対する周波数指定信号を前記第２インバータに出力する第２制御部と、を備える水処理システムに関する。 The present invention includes a pretreatment unit that produces pretreatment water from raw water, a membrane separation device that separates pretreatment water into permeate and concentrated water, a raw water line that supplies raw water to the pretreatment unit, and pretreatment Driven by a pretreatment water line for supplying water to the membrane separation device, a first flow rate detection means for outputting the flow rate of the pretreatment water as a first detected flow rate value, and a rotational speed corresponding to the inputted drive frequency; A first pressurizing pump that pumps raw water flowing through the raw water line toward the pretreatment unit; a first inverter that outputs a driving frequency corresponding to the input frequency designation signal to the first pressurizing pump; The first detection flow rate value output from the first flow rate detection means is a first target flow rate value based on a total value of a flow rate value of permeate and a flow rate of concentrated water in the membrane separation device. Driving the first pressure pump Calculating the wave number, and the second flow rate detecting means for outputting a first control unit for outputting a frequency designation signal to the first inverter, the flow rate of the permeated water as the second detected flow value for the calculated value of the driving frequency, the input A second pressure pump that is driven at a rotational speed corresponding to the driving frequency and that pumps pretreated water flowing through the pretreated water line toward the membrane separation device, and corresponds to an input frequency designation signal A second inverter that outputs a driving frequency to the second pressurizing pump; and the second detected flow rate value output from the second flow rate detecting means is set to a second target flow rate value set in advance. A 2nd control part which calculates the drive frequency of 2 pressurization pumps, and outputs the frequency designation signal with respect to the calculated value of the drive frequency to the 2nd inverter.
Claims (5)
前処理水を透過水と濃縮水とに分離する膜分離装置と、
原水を前記前処理ユニットに供給する原水ラインと、
前処理水を前記膜分離装置に供給する前処理水ラインと、
前処理水の流量を第１検出流量値として出力する第１流量検出手段と、
入力された駆動周波数に応じた回転速度で駆動され、前記原水ラインを流通する原水を前記前処理ユニットに向けて圧送する第１加圧ポンプと、
入力された周波数指定信号に対応する駆動周波数を前記第１加圧ポンプに出力する第１インバータと、
前記第１流量検出手段から出力された前記第１検出流量値が前記膜分離装置における透過水の流量値と濃縮水の流量値との合計値に基づく第１目標流量値となるように、前記第１加圧ポンプの駆動周波数を演算し、当該駆動周波数の演算値に対する周波数指定信号を前記第１インバータに出力する第１制御部と、
透過水の流量を第２検出流量値として出力する第２流量検出手段と、
入力された駆動周波数に応じた回転速度で駆動され、前記前処理水ラインを流通する前処理水を前記膜分離装置に向けて圧送する第２加圧ポンプと、
入力された周波数指定信号に対応する駆動周波数を前記第２加圧ポンプに出力する第２インバータと、
前記第２流量検出手段から出力された前記第２検出流量値が予め設定された第２目標流量値となるように、前記第２加圧ポンプの駆動周波数を演算し、当該駆動周波数の演算値に対する周波数指定信号を前記第２インバータに出力する第２制御部と、
を備える水処理システム。 A pretreatment unit for producing pretreatment water from raw water;
A membrane separation device for separating pretreated water into permeate and concentrated water;
A raw water line for supplying raw water to the pretreatment unit;
A pretreatment water line for supplying pretreatment water to the membrane separator;
First flow rate detection means for outputting the pretreatment water flow rate as a first detected flow rate value;
A first pressurizing pump that is driven at a rotational speed corresponding to the input driving frequency and pumps the raw water flowing through the raw water line toward the pretreatment unit;
A first inverter that outputs a drive frequency corresponding to the input frequency designation signal to the first pressure pump;
The first detection flow rate value output from the first flow rate detection means is a first target flow rate value based on a total value of a flow rate value of permeate and a flow rate of concentrated water in the membrane separation device. A first control unit that calculates a driving frequency of the first pressurizing pump and outputs a frequency designation signal for the calculated value of the driving frequency to the first inverter;
Second flow rate detection means for outputting the flow rate of the permeated water as a second detected flow rate value;
A second pressurizing pump that is driven at a rotational speed corresponding to the input driving frequency and pumps pretreated water flowing through the pretreated water line toward the membrane separation device;
A second inverter that outputs a driving frequency corresponding to the input frequency designation signal to the second pressurizing pump;
The drive frequency of the second pressurizing pump is calculated so that the second detected flow rate value output from the second flow rate detection means becomes a preset second target flow rate value, and the calculated value of the drive frequency is calculated. A second control unit that outputs a frequency designation signal to the second inverter;
A water treatment system comprising.
前記第１制御部は、前記膜分離装置で分離される透過水の前記流量値と濃縮水の前記流量値との合計値の１〜１．０５倍の流量値を前記第１目標流量値とする、
請求項１に記載の水処理システム。 The flow rate value of the pretreatment water flowing through the pretreatment water line exceeds the total value of the flow rate value of the permeated water and the concentrated water separated by the membrane separator, and exceeds a predetermined pressure value. In this case, pretreatment water discharge means for discharging excess pretreatment water from the pretreatment water line is provided,
The first control unit sets a flow value that is 1 to 1.05 times the total value of the flow rate value of the permeated water and the flow rate value of the concentrated water separated by the membrane separation device as the first target flow rate value. To
The water treatment system according to claim 1.
前記膜分離装置の外へ排出する濃縮水の排水流量を調節可能な排水弁と、を備え、
前記第２制御部は、（ｉ）予め取得された前処理水のシリカ濃度、及び前記温度検出手段の検出温度値から決定したシリカ溶解度に基づいて、濃縮水におけるシリカの許容濃縮倍率を演算し、（ｉｉ）当該許容濃縮倍率の演算値及び透過水の前記第２目標流量値から排水流量を演算し、（ｉｉｉ）濃縮水の実際排水流量が当該排水流量の演算値となるように、前記排水弁を制御する、
請求項１又は２に記載の逆浸透膜分離装置。 Temperature detecting means for detecting the temperature of pretreated water, permeated water or concentrated water;
A drainage valve capable of adjusting the drainage flow rate of the concentrated water discharged outside the membrane separator,
The second control unit calculates (i) an allowable concentration rate of silica in the concentrated water based on the silica concentration determined from the silica concentration of pretreatment water acquired in advance and the detected temperature value of the temperature detecting means. (Ii) calculating the drainage flow rate from the calculated value of the permissible concentration factor and the second target flow rate value of the permeated water, and (iii) the actual drainage flow rate of the concentrated water to be the calculated value of the drainage flow rate, Control the drain valve,
The reverse osmosis membrane separation apparatus according to claim 1 or 2.
前記膜分離装置の外へ排出する濃縮水の排水流量を調節可能な排水弁と、を備え、
前記第２制御部は、（ｉ）予め取得された炭酸カルシウム溶解度、及び前記硬度測定手段の測定硬度値に基づいて、濃縮水における炭酸カルシウムの許容濃縮倍率を演算し、（ｉｉ）当該許容濃縮倍率の演算値、及び透過水の前記第２目標流量値から排水流量を演算し、（ｉｉｉ）濃縮水の実際排水流量が当該排水流量の演算値となるように、前記排水弁を制御する、
請求項１又は２に記載の逆浸透膜分離装置。 A hardness measuring means for measuring the calcium hardness of the pretreated water;
A drainage valve capable of adjusting the drainage flow rate of the concentrated water discharged outside the membrane separator,
The second control unit calculates (i) an allowable concentration rate of calcium carbonate in concentrated water based on (i) a calcium carbonate solubility acquired in advance and a measured hardness value of the hardness measuring means, and (ii) the allowable concentration Calculate the drainage flow rate from the calculated value of the magnification and the second target flow rate value of the permeated water, and (iii) control the drainage valve so that the actual drainage flow rate of the concentrated water becomes the calculated value of the drainage flow rate.
The reverse osmosis membrane separation apparatus according to claim 1 or 2.
前記水処理システムは、前記第２制御部から前記膜分離装置における透過水の前記流量値及び濃縮水の前記流量値に関するデータを取得し、当該データを前記第１制御部に送信する第３制御部を備える、
請求項１〜４のいずれか一項に記載の水処理システム。 The second control unit holds data relating to the flow rate value of the permeated water and the flow rate value of the concentrated water in the membrane separation device,
The water treatment system acquires data relating to the flow rate value of the permeated water and the flow rate value of the concentrated water in the membrane separation device from the second control unit, and transmits the data to the first control unit. Comprising a part,
The water treatment system as described in any one of Claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012056486A JP2013188682A (en) | 2012-03-13 | 2012-03-13 | Water treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012056486A JP2013188682A (en) | 2012-03-13 | 2012-03-13 | Water treatment system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2013188682A JP2013188682A (en) | 2013-09-26 |
| JP2013188682A5 true JP2013188682A5 (en) | 2013-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012056486A Pending JP2013188682A (en) | 2012-03-13 | 2012-03-13 | Water treatment system |
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| JP (1) | JP2013188682A (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4062433B2 (en) * | 2002-11-22 | 2008-03-19 | 栗田工業株式会社 | Pure water production equipment |
| JP2005296945A (en) * | 2004-03-19 | 2005-10-27 | Miura Co Ltd | Water quality improving system |
| JP2006305500A (en) * | 2005-04-28 | 2006-11-09 | Miura Co Ltd | Water treatment method |
| JP4817046B2 (en) * | 2005-12-28 | 2011-11-16 | 三浦工業株式会社 | Operation method of membrane filtration system |
| JP4831480B2 (en) * | 2006-06-21 | 2011-12-07 | 三浦工業株式会社 | Membrane filtration system |
| JP4883489B2 (en) * | 2007-11-05 | 2012-02-22 | 三浦工業株式会社 | Water treatment system |
| JP5359898B2 (en) * | 2010-01-22 | 2013-12-04 | 三浦工業株式会社 | Water treatment method and water treatment system |
| JP5420450B2 (en) * | 2010-03-01 | 2014-02-19 | 旭化成ケミカルズ株式会社 | Filtration device |
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2012
- 2012-03-13 JP JP2012056486A patent/JP2013188682A/en active Pending
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