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1. 发明专利

JPH0768257A FRESH WATER PRODUCING APPARATUS 失效
公开(公告)号：JPH0768257A
公开(公告)日：1995-03-14
申请号：JP21859193
申请日：1993-09-02
申请人： TAKENAKA KOMUTEN CO , ORGANO KK
发明人： KAYANO HIDENORI , NAKAKUKI YASUHIDE , KAWAHITO NAOMI , HAYASHI YUJI , KOIDE MARI , TAKEUCHI HIROSHI
IPC分类号： B01D61/12 , C02F1/44
摘要： PURPOSE:To obtain fresh water in such a state that the production amt. of water is stabilized, to enhance the coefficient of utilization of raw water and to facilitate maintenance and control by controlling the suppry pressure of water to a reverse osmosis membrane device by controlling the opening degree of a flow control valve on the basis of the detection signal of a flow rate detector. CONSTITUTION:A part of the raw water supplied to a reverse osmosis membrane device 8 transmits through a reverse osmosis membrane to be taken out as fresh water from a transmitted water pipe 24 but, at this time, the amt. of transmitted water is measured by a flow rate detector 26 to be compared with a preset amt. When the amt. of transmitted water is more than the preset amt., a control signal is sent to a flow control valve 14 to increase the opening degree of the valve 14 and the pressure of the raw water supplied to the reverse osmosis membrane device 8 is reduced to reduce the amt. of transmitted water. When the amt. of transmitted water is less than the preset amt., a control signal is sent to the flow control valve 14 to reduce the opening degree of the valve 14 and the pressure of the raw water supplied to the reverse osmosis membrane 8 is increased to increase the amt. of transmitted water. By this constitution, the amt. of transmitted water can be held to an almost preset desired value.

2. 发明专利

JPH08112592A SEAWATER DESALTING DEVICE 失效
公开(公告)号：JPH08112592A
公开(公告)日：1996-05-07
申请号：JP30233194
申请日：1994-12-06
申请人： TAKENAKA KOMUTEN CO , ORGANO KK
发明人： KAYANO HIDENORI , NAKAKUKI YASUHIDE , KAWAHITO NAOMI , HAYASHI YUJI , KAI HIDEHIRO , TSUNODA MINORU , KOIDE MARI
IPC分类号： B01D61/36 , C02F1/44
摘要： PURPOSE: To efficiently desalt seawater with smaller energy without adversely affecting the environment. CONSTITUTION: Cooling plates 14 of a desalting element 10 are cooled by the low-temp. seawater fed by a seawater piping 22. On the other hand, the seawater stored in a sea water tank 28 is heated by a heat exchanger 36 and is fed by a sea water piping 24 to the high-temp. seawater passage water surfaces of a PV membrane 16. The high-temp. seawater is cooled by the low-temp. seawater and is sent again to the seawater tank 28 by a seawater piping 54. The high-temp. seawater is efficiently circulated by the seawater piping 24 and the seawater piping 54 in such a manner and the temp. difference of the seawater is generated on both surfaces of the PV membrane 16 by the smaller heat energy. The moisture in the seawater permeates the PV membrane 16 under the steam pressure difference generated by such temp. difference and is taken as the plainwater out of a gap 18.

3. 发明专利

JPH11299650A CARTRIDGE FILTER FOR HOT WATER 失效
公开(公告)号：JPH11299650A
公开(公告)日：1999-11-02
申请号：JP12810498
申请日：1998-04-23
申请人： ORGANO KK
发明人： SATO TOSHINOBU , HASUMI MORIHIRO , YANAGIHARA YASUTOSHI , KOIDE MARI
IPC分类号： A47J31/06 , B01D27/00 , B01D29/11 , B01D29/31 , B01D39/14
摘要： PROBLEM TO BE SOLVED: To prevent a filter unit which is made of activated carbon fiber and formed like a bottom shape from being influenced by hot water to be swollen and deformed outward. SOLUTION: This cartridge filter for hot water is so constructed that a net body 9A which is made of synthetic resin having heat resistance and has wide mesh is made adhere to the outer peripheral part of a filter unit 7 which is formed like a bottomed cylinder and made of activated carbon fiber. In some case, a net body 9B is made adhere to the inner peripheral surface part of the filter unit 7. The outer peripheral part of the net body 9A made adhere to the outside of the filter unit is covered with a facing body 11 having small water passing resistance.

4. 发明专利

JPH07265854A DESALTED WATER PRODUCTION DEVICE 失效
公开(公告)号：JPH07265854A
公开(公告)日：1995-10-17
申请号：JP8108294
申请日：1994-03-29
申请人： ORGANO KK
发明人： HAYASHI YUJI , KOIDE MARI
IPC分类号： B01D61/06 , B01D19/00 , B01D61/10 , C02F1/20 , C02F1/44
摘要： PURPOSE:To provide a desalted water production device capable of obtaining permeated water reduced in free carbon dioxide quantity, even though a decarbonation tower is not provided in a front stage of a reverse osmosis device. CONSTITUTION:An ejector 9 is provided on a pipe line of a return pipe 7 for concentrated water separated from the permeated water with the reverse osmosis device 4. Air is sucked by an ejector 9 and the air is mixed into the concentrated water returned to a raw water storage tank 1 through the return pipe 7 and the free carbon dioxide in the concentrated water is removed by gas-liquid contact.

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