# US 10,118,840 B2 · Centrifugal solid-liquid separation device and water treatment device using same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,118,840 B2 - Document ID: US10118840B2 - Status: Granted - Kind: B2 - Application number: 15/117,860 - Filed: 2014-10-17 - Published: 2016-12-08 - Granted: 2018-11-06 - Earliest claimed: 2014-02-14 - Assignees: Panasonic Intellectual Property Management Co., Ltd. - Applicants: Panasonic Intellectual Property Management Co., Ltd. - Inventors: Hiroshi Yamamoto; Akiyoshi Edagawa; Masafumi Sasai; Takuya Kotanagi; Hirohumi Minami; Hideki Nagaoka; Masafumi Nishimoto; Takashi Sakakibara - Web page: https://patentgrep.com/patent/US10118840B2 ## CPC - C02F 1/38: by centrifugal separation - B01D 21/267: {by using a cyclone} - B04C 5/28: for parallel flow - B04C 9/00: Combinations with other devices, e.g. fans, {expansion chambers, diffusors, water locks}(with filters B01D50/00) - B63J 4/002: {for treating ballast water} - C02F 1/4674: {with halogen or compound of halogens, e.g. chlorine, bromine} - C02F 2103/008: {Originating from marine vessels, ships and boats, e.g. bilge water or ballast water} - C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes) - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) - B04C: APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES ({centrifugal separation of water from steam B01D45/12;} jet mills B02C19/06; {wind sifters B07B7/00;} cyclonic type combustion apparatus F23; {vortex burners for cyclone-type combustion apparatus F23D1/02; cyclonic type combustion apparatus for gas turbines F23R3/00}) - B63J: AUXILIARIES ON VESSELS ## Abstract When a plurality of cyclones are used as a separation device of a water treatment device, there have been as many lower liquid containers as the number of cyclones, resulting in high cost. Provided is a centrifugal solid-liquid separation device including: a plurality of cyclones respectively having at least a liquid inlet, a liquid outlet, and a lower liquid port; and a lower liquid container communicating with the respective lower liquid ports of the plurality of cyclones via pipes, arranged below the plurality of cyclones, and having a drain hole in its bottom side. The lower liquid container includes a space forming portion above lower opening ends of the pipes. Also provided is a water treatment device using this centrifugal solid-liquid separation device. ## Claims ### Claim 1 A centrifugal solid-liquid separation device comprising: a plurality of cyclones, each cyclone of the plurality of cyclones having at least a liquid inlet, a liquid outlet, and a lower liquid port; and a lower liquid container that communicates with the lower liquid ports of each of the plurality of cyclones, wherein the lower liquid container is provided with an air space above communication opening ends of the respective lower liquid ports of the plurality of cyclones, a liquid level in the lower liquid container extending to the communication opening ends, and the air space extending from the communication opening ends to a top portion of the lower liquid container. ### Claim 2 (depends on 1) The centrifugal solid-liquid separation device according to claim 1, wherein the communication opening ends comprise the respective lower liquid ports. ### Claim 3 (depends on 1) The centrifugal solid-liquid separation device according to claim 1, wherein the lower liquid container has a drain hole, and the centrifugal solid-liquid separation device further comprises: a communication member, one end of the communication member is connected to the drain hole; and a storage container, the other end of the communication member is connected to the storage container. ### Claim 4 (depends on 3) A water treatment device comprising: a water intake pipe connected to a water intake port; an inactivation device with a water inlet connected to the water intake pipe; a pipe connected to a water outlet of the inactivation device and divided into a plurality of pipes; and the centrifugal solid-liquid separation device according to claim 3, in which each liquid inlet is connected with one of the plurality of pipes. ### Claim 5 (depends on 1) A water treatment device comprising: a water intake pipe connected to a water intake port; the centrifugal solid-liquid separation device according to claim 1, in which each liquid inlet is connected to the water intake pipe; and an inactivation device with a water inlet connected to the liquid outlets of the plurality of cyclones of the centrifugal solid-liquid separation device. ### Claim 6 (depends on 1) A water treatment device comprising: a water intake pipe that is connected to a water intake port; a first centrifugal solid-liquid separation device according to claim 1, in which each liquid inlet is connected to the water intake pipe; an inactivation device with a water inlet connected to the liquid outlets of the plurality of cyclones of the first centrifugal solid-liquid separation device; and a second centrifugal solid-liquid separation device comprising: a plurality of cyclones, each cyclone of the plurality of cyclones of the second centrifugal solid-liquid separation device having at least a liquid inlet, a liquid outlet, and a lower liquid port; and a lower liquid container that communicates with the lower liquid ports of each of the plurality of cyclones of the second centrifugal solid-liquid separation device, wherein the lower liquid container is provided with an air space above communication opening ends of the respective lower liquid ports of the plurality of cyclones of the second centrifugal solid-liquid separation device, a liquid level in the lower liquid container extending to the communication opening ends, and the air space extending from the communication opening ends to a top portion of the lower liquid container, and wherein the lower liquid container has a drain hole, and the second centrifugal solid-liquid separation device further comprises: a communication member, one end of the communication member is connected to the drain hole; and a storage container, the other end of the communication member is connected to the storage container, wherein each liquid inlet of the plurality of cyclones of the second centrifugal solid-liquid separation device is connected to the water outlet of the inactivation device. ### Claim 7 (depends on 4) The water treatment device according to claim 4, wherein the inactivation device comprises, between the water inlet and the water outlet: opposed electrodes; and a power supply that applies a voltage between the opposed electrodes to pass an electric current between the opposed electrodes. ### Claim 8 (depends on 5) The water treatment device according to claim 5, wherein the inactivation device comprises, between the water inlet and the water outlet: opposed electrodes; and a power supply that applies a voltage between the opposed electrodes to pass an electric current between the opposed electrodes. ### Claim 9 (depends on 6) The water treatment device according to claim 6, wherein the inactivation device comprises, between the water inlet and the water outlet: opposed electrodes; and a power supply that applies a voltage between the opposed electrodes to pass an electric current between the opposed electrodes.