Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – With means applying electromagnetic wave energy or...
Patent
1983-09-06
1985-03-12
Sebastian, Leland A.
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
With means applying electromagnetic wave energy or...
204176, 210760, 42218607, 4221863, B01J 110
Patent
active
045044457
ABSTRACT:
Ultraviolet radiation is the wavelength range between 150 and 300 nanometers, which both generates ozone (O.sub.3) and has a germicidal effect both in ambient air and in a pure oxygen atmosphere, is performed in a highly energy-efficient manner, by utilizing a low-voltage, low-pressure gas discharge lamp, by using a radiation-transparent quartz tube, by equipping it with a long-lasting sintered electrode pair and filling it with a mixture of gas vapor and mercury vapor, by disposing a circuit device between the mains and the gas discharge tube which rectifies the mains alternating current and effects smoothing voltage multiplication, and by coupling this circuit device with an automatic, dry-switching commutator device for the direct current of the gas discharge lamp, in order in principle to avoid a mercury-vapor dissociation (cataphoresis) which would reduce the effectiveness of the radiation. As a result of the direct current operation, the energy efficiency of the UV radiation generator is improved by up to 30%, as compared with direct operation of the gas discharge lamp with alternating current and a standard alternating current choke, because of the reduction in heat losses both in the gas discharge process and in the voltage multiplier choke.
REFERENCES:
patent: 4273660 (1981-06-01), Beitzel
patent: 4417966 (1983-11-01), Krauss et al.
patent: 4427636 (1984-01-01), Obenshain
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