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1. (WO2018159299) COOLING TOWER SYSTEM
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Pub. No.: WO/2018/159299 International Application No.: PCT/JP2018/005175
Publication Date: 07.09.2018 International Filing Date: 15.02.2018
IPC:
F28F 27/00 (2006.01) ,B01D 61/02 (2006.01) ,B01D 61/12 (2006.01) ,B01D 61/14 (2006.01) ,B01D 61/58 (2006.01) ,C02F 1/44 (2006.01) ,F28G 13/00 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28
HEAT EXCHANGE IN GENERAL
F
DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
27
Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
61
Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
02
Reverse osmosis; Hyperfiltration
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
61
Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
02
Reverse osmosis; Hyperfiltration
12
Controlling or regulating
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
61
Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
14
Ultrafiltration; Microfiltration
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
61
Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
58
Multistep processes
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1
Treatment of water, waste water, or sewage
44
by dialysis, osmosis or reverse osmosis
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28
HEAT EXCHANGE IN GENERAL
G
CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OF BOILERS
13
Appliances or processes not covered by groups F28G1/-F28G11/98; Combinations of appliances or processes covered by groups F28G1/-F28G11/110
Applicants:
栗田工業株式会社 KURITA WATER INDUSTRIES LTD. [JP/JP]; 東京都中野区中野四丁目10番1号 10-1, Nakano 4-chome, Nakano-ku, Tokyo 1640001, JP
Inventors:
伊藤 孝次 ITOU, Kouji; JP
三輪 昌之 MIWA, Masayuki; JP
Agent:
重野 剛 SHIGENO, Tsuyoshi; JP
重野 隆之 SHIGENO, Takayuki; JP
Priority Data:
2017-03845701.03.2017JP
2017-03845801.03.2017JP
2018-01745802.02.2018JP
2018-01746002.02.2018JP
Title (EN) COOLING TOWER SYSTEM
(FR) SYSTÈME DE TOUR DE REFROIDISSEMENT
(JA) 冷却塔システム
Abstract:
(EN) When recirculation and supply of cooling water from a cooling tower 1 to a heat exchanger 4 is continued, the water level inside a pit 1d gradually decreases and electrical conductivity gradually increases. A pump 10 starts operation once the electrical conductivity reaches an intermediate value C1. The water supply from the pump 10 undergoes RO treatment by an RO device 13, concentrate is discharged outside the system, and permeate is introduced to the pit 1d. As a result of the inflow of permeate, there is a slow rise in electrical conductivity of the water inside the pit 1d. The electrical conductivity continues to increase and reaches an upper limit of C2. Once that happens, a forced replenishment water valve 22 opens and the replenishment water inside a replenishment water tank 15 is supplied to inside the pit 1d via pipes 19, 20.
(FR) Lorsque la recirculation et la fourniture d'eau de refroidissement à partir d'une tour de refroidissement (1) vers un échangeur de chaleur (4) se poursuivent, le niveau d'eau à l'intérieur d'une fosse (1d) diminue progressivement et la conductivité électrique augmente progressivement. Une pompe (10) commence à fonctionner une fois que la conductivité électrique atteint une valeur intermédiaire C1. La fourniture d'eau de la pompe (10) subit un traitement OI par un dispositif OI (13), un concentré est évacué à l'extérieur du système et un perméat est introduit dans la fosse (1d). En conséquence de l'afflux de perméat, il y a une augmentation lente de la conductivité électrique de l'eau à l'intérieur de la fosse (1d). La conductivité électrique continue à augmenter et atteint une limite supérieure de C2. Une fois que cela s'est produit, un robinet d'eau à remplissage forcé (22) s'ouvre et l'eau de remplissage à l'intérieur d'un réservoir d'eau de remplissage (15) est fournie à l'intérieur de la fosse (1d) par l'intermédiaire de tuyaux (19, 20).
(JA) 冷却塔1から熱交換器4へ冷水を循環供給する運転を継続すると、ピット1d内の水位が次第に低下し、電気伝導度が次第に上昇する。電気伝導度が中間値Cにまで上昇するとポンプ10が作動開始する。ポンプ10からの送水は、RO装置13にてRO処理され、濃縮水は系外に排出され、透過水はピット1dに導入される。透過水の流入により、ピット1d内の水の電気伝導度の上昇は緩慢になるが、電気伝導度はさらに上昇を続け、上限値Cに到達する。そうすると、強制補給水弁22が開となり、補給水槽15内の補給水が配管19,20を介してピット1d内に供給される。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)