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Water quality analytic system

A technology for water quality analysis and port allocation, which is applied in the field of analytical instruments and can solve problems such as disturbance, inaccurate volume, and impact on system measurement accuracy.

Active Publication Date: 2015-10-14
桂林云璟科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in this technical scheme, there is a space for containing air above the liquid surface in the reaction vessel. When the peristaltic pump drive system pumps liquid, the gas contained in this space is drawn to a certain extent into a negative pressure relative to the atmosphere, and When the peristaltic pump stops working, the negative pressure cannot disappear immediately, so the liquid flowing to the reaction vessel will not stop flowing immediately. On the contrary, there will be a certain time lag and disturbance, resulting in inaccurate actual sampling volume, thus affecting The measurement accuracy of the system

Method used

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Embodiment Construction

[0040] 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.

[0041] Such as figure 2 Shown is a schematic structural diagram of a water quality analysis system of the present invention, the water quality analysis system includes a multi-channel directional valve 1 , a reaction vessel 5 , a metering isolation tube 2 , a liquid level detector 3 and a fluid driver 4 . Wherein, the multi-channel directional valve 1 has a common port k and a plurality of distribution ports a-h that can alternatively communicate with the common port k, the bottom of the reaction vessel 5 is provided with a channel port j, and the metering isolation The pipe 2 is connected between the common port k and the passage port j, the liquid level dete...

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Abstract

The invention discloses a water quality analytic system which includes: a multichannel direction-selective valve (1) provided with a public port (k) and a plurality of distribution ports (a-h) which can be communicated with the public port (k) selectively; a reaction container (5), of which the bottom is provided with a channel opening (j); a metering isolation tube (2) which is connected between the public port (k) and the channel opening (j); and a liquid level detector (3) which is arranged in a pipeline of the metering isolation tube (2). The water quality analytic system also includes a fluid driver (4), which is disposed in the pipeline of the metering isolation tube (2). The upper part of the reaction container (5) is communicated with atmosphere.

Description

technical field [0001] The invention relates to an analysis instrument, in particular to a water quality analysis instrument. Background technique [0002] At present, the special water quality analysis instruments with an accuracy of ±10% or even higher based on wet chemical analysis usually adopt the analysis process of "water sample and reagent mixing-reaction-detection" in the working process: the instrument first sequentially takes the water sample to be tested It is injected into the reaction container with other reaction reagents, mixed evenly and then reacted under certain conditions. Finally, it is detected by the principle of colorimetry, titration or electrode method to determine the concentration of the water sample to be tested. In the prior art, the flow path design of the above-mentioned special water quality analysis instrument can be roughly divided into the following three categories, namely multi-channel discrete liquid inlet technology, classical flow inj...

Claims

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Application Information

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IPC IPC(8): G01N35/00
Inventor 肖巍
Owner 桂林云璟科技有限公司
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