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1. 发明专利

JPS57158536A WATER COLLECTING DEVICE FOR WATER QUALITY SENSOR 失效
公开(公告)号：JPS57158536A
公开(公告)日：1982-09-30
申请号：JP4459881
申请日：1981-03-25
申请人： MITSUBISHI ELECTRIC CORP
发明人： NAKAHORI ICHIROU , NAKAYAMA SHIGEKI , MAEDA MITSUO , YAMAUCHI SHIROU , OZAWA JIYUNICHIROU
IPC分类号： G01N27/06 , C02F1/00 , G01N1/00 , G01N33/18
摘要： PURPOSE:To prevent dirt from adhering to each part and to remove the adhering dirt so as to be washed, by making water containing ozone and having a sterilizing function flow to a water collecting device continuously or intermittently. CONSTITUTION:Water to be measured is led to a water quality sensor 3, and a water quality sensor 4 installed to a water receiving tank 5 through a water collecting port 1a, and valves 11a, 9c and 9d by a water collecting pump 2a. Collection of water through a water collecting port 1b is also executed in the same way. When washing, the water collecting pump 2a is stopped, the valves 9c, 11a are closed, and after that, a washing pump 8 is started, and a valve 9e is opened. Also, an intermittent type ozone generating device 10 and an ejector pump 9b are started, and ozone is injected from an ejector 9a. As a result, ozone is contained in water of the washing water tank, and this water is fed to each part by the washing pump and wasing is performed. This methods is economical since only one washing device is used even in case of plural water collecting places and plural kinds of water quality sensors, and the device is small-sized.

2. 发明专利

JPS58137488A METHOD FOR CONTROLLING INJECTION OF CHLORINE IN WATER PURIFYING PLANT 失效
公开(公告)号：JPS58137488A
公开(公告)日：1983-08-15
申请号：JP1913582
申请日：1982-02-08
申请人： MITSUBISHI ELECTRIC CORP
发明人： KOBAYASHI TOSHIAKI , MAEDA MITSUO , OZAWA JIYUNICHIROU
IPC分类号： C02F1/50 , C02F1/76
摘要： PURPOSE:To control the injection amount of chlorine for holding the concentration of chlorine remaining in purified water at a predetermined value, by combining a mechanism for feeding back the concentration of chlorine remaining in purified water by PID calculation with a mechanism for automatically calculating the consumption ratio of chlorine. CONSTITUTION:The injection ratio of chlorine (MVB) by feed-back is obtained by a PID arithmetic unit 15. The actually measured value (PV) of the concentration of residual chlorine, a preset value (SV) and the idling time of a process corresponding to the flow amount of intake water obtained by an arithmetic unit 17 are inputted to the arithmetic unit 15. The injection ratio of chlorine (MVB) obtained by feed-back control is added together with a reference injection ratio (MVS) by an arithmetic unit 18 to determine the injection ratio (MV) of chlorine. Said injection ratio of chlorine is converted into the injection amount of chlorine corresponding to the flow amount of intake water by an arithmetic unit 11 for calculating a ratio and utilized for controlling the opening ratio of the valve of a chlorine injector 8 or the like. In this way, the proper injection amount of chlorine can be maintained.

3. 发明专利

JPS58120143A DETECTING METHOD FOR POINT OF BURSTING ACCIDENT OF FLUID PIPELINE 失效
公开(公告)号：JPS58120143A
公开(公告)日：1983-07-16
申请号：JP359282
申请日：1982-01-12
申请人： MITSUBISHI ELECTRIC CORP
发明人： FUKUDA TOYOO , NAKAHORI ICHIROU , OZAWA JIYUNICHIROU , TONEGAWA HISASHI
IPC分类号： G01M3/28
摘要： PURPOSE:To make it possible to know a point of accident by one detecting means or two detecting means requiring no synchronization for a fluid pipeline, by measuring periodically signals from a pressure gage and a flowmeter of the fluid pipeline, and by transmitting them to a data processing unit. CONSTITUTION:A pressure gage 13 and a flowmeter 14 are provided on a water pipeline 1, and a signal p(t) from the pressure gage 13 and a signal g(t) from the flowmeter 14 are measured at every period DELTAtau and are transmitted to a receiving and data-processing unit 17 by a transmitting unit 15. Received signals are once stored in data accumulating unit 16. Next, data stored in a prescribed terms before the present are taken out and processed by a data processing unit 17. Data of (n+1) items in all containing the present pressure measurement data p(t) and the past data p(t-2DELTAtau), p(t-2iDELTAtau), ... p(t-2nDELTAtau) are adopted as the data for the prescribed term. Data obtained by the flowmeter are employed in the same way. The point of a bursting accident is detected from these data.

4. 发明专利

JPS5840115A FLOCCULANT POURING CONTROL APPARATUS IN WATER TREATMENT 失效
公开(公告)号：JPS5840115A
公开(公告)日：1983-03-09
申请号：JP13989581
申请日：1981-09-03
申请人： MITSUBISHI ELECTRIC CORP
发明人： OZAWA JIYUNICHIROU , KOBAYASHI TOSHIAKI , MAEDA MITSUO
IPC分类号： B01D21/30 , B01D21/01 , C02F1/52
摘要： PURPOSE:To obtain the flocculant pouring control apparatus capable of easily controlling the outlet turbidity of a precipitation basin to a set value even if the flow amount of raw water is varied, by a method wherein the signal of the flow amount of raw water is put in a treated water set turbidity operator and the set value of treated water turbidity is calculated in accodance with the flow amount of raw water. CONSTITUTION:The set value of the outlet turbidity of a precipitation basin 2 by a precipitation basin outlet turbidity setting device 11 and the flow amount of raw water by a raw water flowmeter 3 are put in a treated water set turbidity operator 12 to calculate treated water set turbidity. This treated water turbidity set value is sent to a ratio operator 9 and compared to the treated water turbidity value by a treated water turbidimeter 8 to calculate a flocculant pouring ratio and this calculated value is sent to a pouring amount controller 6. A proper pouring amount of a flocculant is poured into a rapidly stirring basin 1 by the controller 6, the feedback signal of a flocculant flowmeter 4 and a manipulation device 5.

5. 发明专利

JPS5578731A APPARATUS FOR PREPARING PLAN OF OPERATING WATER FEED*DISTRIBUTION SYSTEM 失效
公开(公告)号：JPS5578731A
公开(公告)日：1980-06-13
申请号：JP15354178
申请日：1978-12-11
申请人： MITSUBISHI ELECTRIC CORP
发明人： OZAWA JIYUNICHIROU
IPC分类号： G05D7/06 , E03B1/00 , G05D7/00

6. 发明专利

JPS5578214A FLOWMETER WITH FREQUENCY ANALYSIS 失效
公开(公告)号：JPS5578214A
公开(公告)日：1980-06-12
申请号：JP15160878
申请日：1978-12-07
申请人： MITSUBISHI ELECTRIC CORP
发明人： OZAWA JIYUNICHIROU
IPC分类号： G01P5/00 , G01F1/66 , G01P5/08
摘要： PURPOSE:To measure flow rate from the flow speed with frequency analysis for the noise produced when powder steadily flows. CONSTITUTION:The sound collection unit 2 fitted at the side wall of the flow path 1 collects the noise produced from the object flowing in the flow path 1 and feeds noise signal to the frequency analyzer 3. The unit 3 measures the sound pressure p to each frequency f, and flow speed v is obtained with the operation 4 of the frequency f and sound pressure p, and further, flow is obtained. This flow is displayed with the indicator 5.

7. 发明专利

JPS5576300A FLOW RATE CHANGEEOVER TIMING CALCULATOR OF SUPPLYYWATER DISTRIBUTION SYSTEM 失效
公开(公告)号：JPS5576300A
公开(公告)日：1980-06-09
申请号：JP14939178
申请日：1978-11-30
申请人： MITSUBISHI ELECTRIC CORP
发明人： OZAWA JIYUNICHIROU
IPC分类号： E03B7/07 , F17D1/08 , F17D3/18 , G05D7/00 , G05D7/06
摘要： PURPOSE:To increase the efficiency of timing culculation by finding out a timing of changing over a flow rate reuglation device from a predicted flow rate amount required by each demander for a certain period. CONSTITUTION:Before a timing to change over a flow rate of each pump 1-3 in a supply water distribution system is found out, flow rates of demanders 5, 7, 9 are respectively put into a prediction unit 10. The output of each predicted flow rate is sent to a timing calculation unit 11, which delivers results of timing to change over flow rate of the pumps according to each capacity of those pumps 1-3 and reservoirs 4, 6, 8 and drives the pumps 1-3. This may eliminate need of operator's experience and sense and, if number of driving pumps is restricted, cut short a period for finding out a right flow rate of each flow rate regulation unit because a timing is substituted by variables.

8. 发明专利

JPS58196816A Control of filter basin group 失效
标题翻译：过滤池组控制
公开(公告)号：JPS58196816A
公开(公告)日：1983-11-16
申请号：JP8199582
申请日：1982-05-12
申请人： Mitsubishi Electric Corp
发明人： KOBAYASHI TOSHIAKI , OZAWA JIYUNICHIROU
IPC分类号： B01D37/04
摘要： PURPOSE: To arrange a washing scheduled filter basin at an efficient time, by providing an actually measuring process, a regression type programming process, a filtration finish time estimating process and a finish time correcting process.
CONSTITUTION: In an actually measuring process, a filtration time and filtration resistance are actually measured every at predetermined time intervals while, in a regression type programming process, a regression formula is asked from the actually measured filtration time and the filtration resistance value by subjecting the variation in filtration resistance with respect to the filtration time of each filter basin to regression analysis. In a filtration finish time estimating process, a filtration finish time is calculated by inputting a set filtration resistance value in the regression formula while in a filtration schedule time comparing and correcting process, a schedule time is corrected prior to a filtration finish time.
COPYRIGHT: (C)1983,JPO&Japio
摘要翻译：目的：通过提供实际测量过程，回归型编程过程，过滤完成时间估计过程和完成时间校正过程，在有效的时间安排洗涤预定的过滤池。构成：在实际测量过程中，实际上每隔预定的时间间隔测量过滤时间和过滤阻力，而在回归型编程过程中，通过实际测量的过滤时间和过滤阻力值询问回归公式，过滤阻力相对于每个过滤池的过滤时间的变化对回归分析。在过滤完成时间估计过程中，通过在回归公式中输入设定的过滤阻力值来计算过滤结束时间，而在过滤调度时间比较和校正处理中，在过滤完成时间之前校正调度时间。

9. 发明专利

JPS58137491A METHOD FOR CONTROLLING INJECTION OF ALKALI AGENT IN WATER PURIFYING PLANT 失效
公开(公告)号：JPS58137491A
公开(公告)日：1983-08-15
申请号：JP1913182
申请日：1982-02-08
申请人： MITSUBISHI ELECTRIC CORP
发明人： KOBAYASHI TOSHIAKI , MAEDA MITSUO , OZAWA JIYUNICHIROU
IPC分类号： C02F1/66 , C02F1/68 , G05D21/00
摘要： PURPOSE:To stably hold the pH value of purified water, by introducing the consumption coefficient of hydrogencarbonic ion in water to accurately obtain pH of the purified water, and feeding back actually-measured Ph according to PID calculation. CONSTITUTION:Raw water gathered in a water purifying plant is disinfected by the preinjection of chlorine in a water-intake well 1, and then a flocculant 11 is further injected to remove suspended matter. Thereafter, the water is let flow through a mixing pool 2, a flocculating pool 3 and a precipitating pool 4 to remove most of turbid substance. The purified water is sampled from the vicinity 12 of the outlet of the precipitating pool and measured by an on-line pH meter 13. The deviation of the actually-measured pH value (PV) from a preset pH value is calculated (EV) by an arithmetic unit 14, and the injection ratio of an alkali is set in response to said EV. The set injection ratio of an alkali is converted into an injection amount according to the flow amount of intake water and utilized for adjusting the opening ratio of the valve of an alkali injector 10 or the like

10. 发明专利

JPS58131532A DETECTION OF ACCIDENT OF LIQUID FEEDING PIPE 失效
公开(公告)号：JPS58131532A
公开(公告)日：1983-08-05
申请号：JP1447582
申请日：1982-01-29
申请人： MITSUBISHI ELECTRIC CORP
发明人： FUKUDA TOYOO , NAKAHORI ICHIROU , OZAWA JIYUNICHIROU , TONEGAWA HISASHI
IPC分类号： G01M3/28
摘要： PURPOSE:To distinguish burst accident from crush accident to detect the accident of a liquid feeding pipe highly accurately by using time series data of two discrimination formulas. CONSTITUTION:Manometers 1301, 1302 and flow meters 1401, 1402 are attached to both the ends of the liquid feeding pipe 1 and a pressure value and a flow rate value measured at a period are accumulated in a data storage device 16. The values of two discrimination formulas are found from the present measured value and the measured value at a past time corresponding to the time required for the transmission of the requid between two measuring points of the liquid feeding pipe 1 out of said stored measurement data, and whether the liquid feeding pipe 1 is normal or not is discriminated by the values of the two discrimination formulas. When an accident is discriminated, the position of the accident is found from the time shearing of the time series data in the two discrimination formulas to discriminate whether the accident in the pipe 1 is burst or crush by a data processor 17.

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