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Method and apparatus for producing gaseous medium

A gaseous medium and medium technology, which is applied in sanitary equipment, instruments, analytical materials and other directions for toilets, and can solve the problems of insufficient disinfection and enlargement.

Inactive Publication Date: 2003-09-24
TETRA LAVAL HLDG & FINANCE SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If the concentration drops even slightly, the risk of insufficient disinfection increases significantly

Method used

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  • Method and apparatus for producing gaseous medium
  • Method and apparatus for producing gaseous medium
  • Method and apparatus for producing gaseous medium

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Embodiment Construction

[0055] Detailed Description of Preferred Embodiments

[0056] Further advantages and preferred features of the method and apparatus according to the invention will be elucidated from the following description with particular reference to the accompanying drawings.

[0057] Even though the invention will hereafter be described with specific reference to a method and a system, it should be found that the invention, in its broadest scope, is not limited solely to such practical applications, as set forth in the appended claims, but rather was chosen as an example for putting the method of the invention into practice, among many other conceivable devices.

[0058] In the attached picture:

[0059] Fig. 1 schematically represents a system for producing a gaseous medium comprising a disinfecting agent, such as hydrogen peroxide, according to a preferred embodiment of the present invention; and

[0060] figure 2 and image 3 Each, according to a preferred embodiment of the presen...

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Abstract

The invention relates to a method and a system for producing a gaseous medium containing a sterilisation agent and for monitoring and regulating the concentration and quality of the gaseous medium. The method preferably includes concentration determination of a substance or agent in a sample of the gaseous medium in the presence of disruptive matter by means of light absorption, as well as an apparatus therefor. By measuring the light absorbency at two different wavelengths, it is possible to detect and compensate for the effect of disruptive matter such as dust particles, dirt and bubbles (aerosols). By also measuring the intensity of light emitted from the light source which has not yet passed through the measurement sample, simultaneously with the measurements of the absorbency of light allowed through the sample, at each measured wavelength, the actual concentration can be determined with improved accuracy. The method and the system are applied for the sterilisation of packaging materials, packaging containers and packing or filling machines within the food packing industry.

Description

technical field [0001] The invention relates to a method for producing a gaseous medium containing a sterilizing agent and for regulating and monitoring the concentration and quality of the gaseous sterilizing medium. [0002] The invention also relates to a system for producing a gaseous medium containing a sterilizing agent and for regulating and monitoring the concentration and quality of the gaseous sterilizing medium. [0003] The invention relates in particular to the practical application of the method and system for sterilizing packaging and filling machines, wrapping or packaging material with a gaseous sterilizing medium. Background technique [0004] In the process of packaging food, it is extremely important to keep bacteria and other microorganisms at a very low level in order to achieve high-quality food and a long shelf life, which allows long-distance transportation and large-scale range of sales while still keeping food fresh and free from bacteria. The di...

Claims

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Application Information

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IPC IPC(8): A61L2/20A61L2/24G01N21/27G01N21/33
CPCA61L2/208A61L2202/18G01N21/274G01N21/33
Inventor H·哈尔斯塔蒂尤斯
Owner TETRA LAVAL HLDG & FINANCE SA
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