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Device and process for improving mixing in the uv disinfection of liquids

一种混合装置、紫外线的技术，应用在化学仪器和方法、水/污泥/污水处理、水/污水处理等方向，能够解决昂贵等问题，达到均匀混合、高消毒效率的效果

Inactive Publication Date: 2013-08-21
ITT MFG ENTERPRISES LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Device and process for improving mixing in the uv disinfection of liquids
  • Device and process for improving mixing in the uv disinfection of liquids
  • Device and process for improving mixing in the uv disinfection of liquids

Examples

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Embodiment Construction

[0023] figure 1 A top view of a UV disinfection unit for the outfall of a wastewater purification plant is shown. The disinfection device has a structure with an open water channel 1, and a plurality of ultraviolet irradiators 2 are installed in the water channel 1. In this embodiment, the UV radiator 2 is made as a low-pressure UV radiator and its longitudinal axis is parallel to the flow direction. The first gate 3 and the second gate 4 regulate the water level in the water channel 1 . Sensor 5 monitors the water level.

[0024] In the area between the first lock 3 and the UV radiator 2 there is a mixing device 6 which, depending on the design of the impeller, generates a flow in the direction of the flow arrow 8 by means of a motor-driven propeller 7 . The flow is directed transverse to the flow indicated by flow arrow 9 . The flow arrow 9 shows the flow through the water channel 1 caused only by the existing drop in the sewage treatment plant. The flow in the directio...

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Abstract

A device is proposed for the UV disinfection of liquids in an open or closed channel, having an inflow for the liquid to be disinfected, at least one UV irradiator arranged downstream of the inflow in a main flow direction and also having an outflow arranged downstream of the UV irradiator, in which a mixing device, driven by an electric motor, is arranged between the inflow and the at least one UV irradiator, which mixing device is set up for generating a cross-flow having at least one velocity component transverse to the main flow direction in order to improve mixing of the liquid.

Description

technical field [0001] The invention relates to a device having the features of the preamble of claim 1 and a method for ultraviolet disinfection of liquids. Background technique [0002] The disinfection of liquids, especially drinking water or waste water, by UV radiation has been known for a long time. For this purpose, the liquid to be sterilized is introduced into an open or closed pipe through a UV irradiator. For effective disinfection, each volume element of the liquid stream needs to receive a certain minimum dose of UV radiation. Since, on the other hand, the energy consumption of the UV disinfection system is a crucial factor for the particular economy, an excessive transmission power should not be used. It is therefore necessary to mix the liquid streams well so that each volume element receives the same radiation dose and does not form a flow path in which the radiation dose is too small. [0003] Various solutions are known from the prior art for this purpos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/32
CPCC02F2301/024C02F2201/3225C02F1/325C02F2201/328C02F2209/40C02F2303/04C02F2201/002
Inventor 沃尔夫-迪特里克·米斯杰夫·琼斯-普里查德
Owner ITT MFG ENTERPRISES LLC