Abstract:
The plant comprises an ozoner (1) in the first region (1') of which ozone is formed and dispersed in the fluid by a gas supply member (3). The two-phase mixture thus formed flows through the second region (1'') of the ozoner up to a phase separation element (13). Owing to the arrangement of the gas supply member on the fluid inlet side, the second region (1'') forms a flowing zone defined by the two-phase mixture. The most important possible ozone supply in the fluid is thereby obtained. Such plants are particularly used to sterilize drinkable water and bath water.
Abstract:
In an ozone generating system which performs intermittent operation, that is, an operation in an ozone generating operation period in which ozone is generated by discharging gas including oxygen at a discharge electrode part and an operation in an ozone generating operation standby period in which ozone is not generated by stopping discharge are alternately repeated, a gas circulating device which circulates gas in the ozone generating apparatus and removes at least nitric acid from the gas which is circulated is connected to the ozone generating apparatus.
Abstract:
An ozone gas supply system (20) includes a plurality of ozone generation units (7-1 to 7-n) and supplies, to a plurality of ozone treatment apparatuses, an ozone gas having been set to a predetermined supply flow rate and a predetermined concentration. Each of said plurality of ozone generation units comprises: an ozone generator (1) for generating an ozone gas; an ozone power source (2) for controlling power to be supplied to said ozone generator; and control means (3 to 5, 51) associated with said ozone generator. Said ozone gas supply system further comprises: an ozone gas output flow rate management unit (9) configured to receive a plurality of ozone gas outputs from a plurality of said ozone generators in said plurality of ozone generation units, and be capable of performing an ozone gas output flow rate control for selectively outputting one or a combination of two or more of said plurality of ozone gas outputs to any of said plurality of ozone treatment apparatuses by means of an opening/closing operation of a plurality of ozone gas control valves (9a, 9b, 9c, 9bc, 9ab, 9ca) provided in an ozone gas output flow rate management unit; and an ozone gas output flow rate management unit control part (8) for, based on a process ozone gas event signal (16) supplied from said plurality of ozone treatment apparatuses, controlling said ozone gas output of each said plurality of ozone generation units and causing said ozone gas output flow rate management unit to control said ozone gas output flow rate.
Abstract:
An oxidation catalyst, an ozone injection nozzle, a urea-based fluid injection nozzle, and a selective reduction catalyst are arranged in an exhaust pipe of an engine in this order towards its outlet. An exhaust gas purifier includes an air flow sensor that detects an air intake amount of the engine, a NOx sensor that detects a NOx concentration in the exhaust pipe and is provided in the exhaust pipe on an upstream side of the ozone injection nozzle, and first and second temperature sensors that detect inlet temperatures of the selective reduction catalyst and the oxidation catalyst. An ozone generation device to which the ozone injection nozzle is connected includes a compressor that compresses air, a dryer that dries this air, a flow rate sensor that detects a flow rate of this air, an ozone generator that converts this air into ozone, and an ozone concentration sensor that detects a concentration of this generated ozone. A controller controls the compressor and the ozone generator based on respective detection outputs of the air flow sensor, the NOx sensor, the first temperature sensor, the second temperature sensor, the flow rate sensor, the ozone concentration sensor, and a load sensor that detects a load of the engine.
Abstract:
An object of the present invention is to provide a downsized ozone generation unit including control means having plurality of means for outputting an ozone gas, and the ozone generation unit. In the present invention, a gas pipe integrated block (30) has a plurality of internal pipe paths (R30a to R30f). The plurality of internal pipe paths are connected to an ozone generator (1), control means (an MFC (3), a gas filter (51), and an APC (4)), a raw gas supply port (14), an ozone gas output port (15), and cooling water inlet/outlet ports (13A, 13B), to thereby form a unit in which a raw gas input pipe path and an ozone gas output pipe path are integrated. The raw gas input pipe path extends from the raw gas supply port through the APC to the ozone gas generator. The ozone gas output pipe path extends from the ozone generator through the gas filter, the ozone concentration meter 5, and the MFC 3, to the ozone gas output port.
Abstract:
This is a discharge cell used for an ozonizer. A space where a discharge gap amount is determined between the first electrodes 10 and 10 is formed by stacking a couple of upper and lower first electrodes 10 and 10, constituted by the plate-like rigid body, in both sides with sandwiching a couple of rigid body spacers 20 and 20. In this space, a dielectric body unit 30 that consists of a rigid body of the sandwich structure of sandwiching a second electrode 32 is arranged between glass plates 31 and 31. The dielectric body unit 30 is supported in a neutral position in the space by a plurality of spacers 40, 40,... for discharge gap formation that are inserted between the upper and lower first electrodes 10, and forms discharge gaps 50 and 50 in both sides. The minimum discharge gap amount G of 0.4 mm or less is stably secured. It is possible to prevent the damage of a cell component and a pressurizing mechanism.
Abstract:
An ozone generator (10) has top and bottom chambers (12, 14) interconnected by a vertically extending elongate tubular assembly (16). Assembly (16) has a control electrode (18) within a conductive tube member (20) and separated therefrom by an annular dielectric member (22) which only partly fills the space between items (18, 20). The dielectric member (22) is suspended by an O-ring at its upper end within the top chamber (12) and is free from contact with both the electrode (18) and the tube member (20). Gas flow between the top and bottom chambers (12, 14) is along radially inner and outer annular passageways within the assembly (16) and the top chamber (12) is partitioned into two chambers which respectively communicate with these passageways. The generator (10) may have a plurality of similar assemblies (16) extending in parallel between common top and bottom chambers (12, 14).