Reactor for UV radiation for the treatment of liquids
First Claim
1. A UV radiation reactor for treating liquids, comprising:
- at least one high or medium pressure UV radiation emitter arranged coaxially inside a protective sheath transparent to UV to form an assembly installed coaxially inside a tubular shell having an internal face reflecting at least 30% of the UV radiation having a wavelength ranging from 250 nm to 260 nm incident on said internal face, the liquid to be treated flowing in a pipe in an active chamber defined by said internal face of said shell and an external face of said sheath,a washing means linked to said active chamber, the washing means adapted to circulate cleaning liquid in said active chamber,an air injector provided upstream from said active chamber to inject air into said cleaning liquid during washing so as to increase turbulence in said cleaning liquid,means to submit the liquid m be treated entering said active chamber to a symmetric loss of load at least three times higher than an asymmetric loss of load observed in the liquid to be treated before entering said reactor, including an injection chamber provided coaxially at one end of said shell and at least one inlet nozzle arranged for introduction of the liquid to be treated into said reactor through said injection chamber, said injection chamber communicating with said active chamber through a circular slot.
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Accused Products
Abstract
The invention relates to a reactor for UV radiation for the disinfection of liquids comprising at least one high or medium pressure UV emitter (1) arranged coaxially inside a protective sheath (2) transparent to UV, the assembly formed by the emitter and the sheath being located coaxially inside a tubular shell (3) whose internal face reflects at least 30% of the incident UV at 250 to 260 nm coming from the emitter (1), the liquid to be treated transiting according to a flow pipe in an active chamber (4) defined by the internal face of the shell (3) and the external face of the sheath (2), the reactor being characterized in that it is connected to washing means (30) of the active chamber (4) including means making it possible to make a cleaning liquid circulate in the active chamber (4) and air injection means (8) provided upstream from the active chamber (5) making it possible to improve the turbulence of the cleaning liquid during washing.
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Citations
13 Claims
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1. A UV radiation reactor for treating liquids, comprising:
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at least one high or medium pressure UV radiation emitter arranged coaxially inside a protective sheath transparent to UV to form an assembly installed coaxially inside a tubular shell having an internal face reflecting at least 30% of the UV radiation having a wavelength ranging from 250 nm to 260 nm incident on said internal face, the liquid to be treated flowing in a pipe in an active chamber defined by said internal face of said shell and an external face of said sheath, a washing means linked to said active chamber, the washing means adapted to circulate cleaning liquid in said active chamber, an air injector provided upstream from said active chamber to inject air into said cleaning liquid during washing so as to increase turbulence in said cleaning liquid, means to submit the liquid m be treated entering said active chamber to a symmetric loss of load at least three times higher than an asymmetric loss of load observed in the liquid to be treated before entering said reactor, including an injection chamber provided coaxially at one end of said shell and at least one inlet nozzle arranged for introduction of the liquid to be treated into said reactor through said injection chamber, said injection chamber communicating with said active chamber through a circular slot. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification