Water quality purification detection device and water quality purification detection method
A detection device and detection method technology, applied in the field of analytical instruments, can solve the problems of insufficient stability of the system, large volume, increased instrument cost, installation and commissioning costs, etc.
Pending Publication Date: 2016-02-10
侯文婷
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[0003] Taking water quality analysis instruments as an example, patent documents CN103076320A, CN202057605U, CN203191344U, and CN201285374Y disclose different types of flow paths and instrument designs for realizing this function. There are suction or blowing pumps on the flow path, and more valves and peristaltic pumps are used in the overall flow path design. This design not only makes the overall volume of the instrument larger, but also increases the cost of the instrument and the cost of installation and commissioning. And the overly complex pipeline also makes the system not stable enough
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[0043] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0044] Such as figure 1 Shown is a schematic diagram of a pipeline structure of a water quality purification detection device of the present invention, the detection device includes a multi-channel directional valve 1, a constant volume metering tube 2, a fluid driver 4, a three-way valve 7, an ejection container 8 and Assay container 5. Wherein, the multi-channel directional valve 1 has a common port k and a plurality of distribution ports a-h that can be selectively communicated with the common port k, and the first end of the constant-volume metering tube 2 is connected to the common port k. The second end of the capacity measuring tube 2 is connected to th...
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The invention discloses a water quality purification detection device and a water quality purification detection method. The water quality purification detection device includes a multi-channel direction-selectable valve (1), a constant-volume metering tube (2), a dispelling container (8), a measuring container (5), a three-way valve (7) and a fluid driver (4). A first end (7k) of the three-way valve (7) is connected to a second end of the constant-volume metering tube (2). A second end (7j) of the three-way valve (7) is connected to the bottom of the measuring container (5). A third end (7m) of the three-way valve (7) is connected to the bottom of the dispelling container (8). The fluid driver (4) is disposed between a public end (k) on the multi-channel direction-selectable valve (1) and the first end (7k) of the three-way valve (7). The top of the measuring container is communicated with atmosphere. The detection device has a simple and reliable structure, can be used for detecting various index substances and is strong in universality.
Description
technical field [0001] The invention relates to an analysis instrument, in particular to an analysis instrument for water quality purification. Background technique [0002] Analytical instruments often use photometric, titration or electrochemical methods to measure the content of substances contained in liquids. However, no matter which of these methods is used, it is usually affected by the turbidity, Chromaticity or the influence of various chemical interfering substances. An effective way to solve this kind of problem is to use distillation, heating or similar methods to expel the substance to be tested, then absorb the expelled substance in the absorption liquid, and finally measure it by photometry, titration or electrochemical method, that is, to The measured substance is purified before measurement to avoid interference. [0003] Taking water quality analysis instruments as an example, patent documents CN103076320A, CN202057605U, CN203191344U, and CN201285374Y dis...
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IPC IPC(8): G01N21/78G01N27/26
CPCY02A20/20
Inventor 肖巍
Owner 侯文婷