Small-sized multifunctional sample detection room

Abstract

The invention provides a small-sized multifunctional online sample optical detection room which comprises a circulating detection pool, a constant-temperature ultrasonic water tank and an ultrasonic transducer, wherein the circulating detection pool is positioned in the constant-temperature ultrasonic water tank; distilled water is filled in the constant-temperature ultrasonic water tank; the lower 2 / 3 part of the circulating detection pool is submerged in the distilled water; and the ultrasonic transducer is arranged at the bottom of the constant-temperature ultrasonic water tank and connected with an ultrasonic generator. In the small-sized multifunctional sample detection room provided by the invention, an ultrasonic cleaning technique is used as reference; the circulating detection pool is installed in the small-sized ultrasonic water tank; the cleaning of the circulating detection pool and the stirring of the sample reaction system in the circulating detection pool are realized by utilizing an ultrasonic cleaning and stirring technique; and simultaneously, because an ultrasonic water bath technique is adopted, the water bath constant temperature of the circulating detection pool can be realized, the detection room has the three functions of stirring, cleaning and constant temperature of the circulating detection pool, and the structure of the detection room is simplified.

Description

technical field [0001] The invention belongs to the technical field of online spectral water quality analysis and monitoring, and relates to a small on-line sample optical detection chamber which integrates three functions of stirring, constant temperature and cleaning of the flow detection cell for the sample reaction system in the flow detection cell. Background technique [0002] The sample detection room (hereinafter referred to as the sample room) has extensive and important applications in many fields such as environment, materials, medicine, biochemistry and water quality analysis. Especially for online analytical instruments, the sample room is the key technology of the system. The sample chamber needs to have at least three basic functions of automatic stirring, automatic cleaning and automatic constant temperature. The traditional sample chamber generally adopts technical measures such as stirring rod or magnetic stirring, cleaning solution flushing and rapid metal...

AI Technical Summary

Problems solved by technology

If magnetic stirring is used, a DC motor is required under the sample chamber to drive the magnet to rotate, which increases the complexity of the system

In addition, for online monitoring instruments, if a slightly larger sample pool or more sample solutions are used, the magnetic stirring will not only fail to mix the sample solution as a whole, but may cause the magnetic stirrer to block the waste discharge port of the flow cell.

At present, the flushing of the sample pool is mainly flushed with a special cleaning solution. However, for unattended water quality monitoring and analysis instruments in the field, this will consume a large amount of special cleaning solution, which is very uneconomical.

As for the metal heat transfer rapid constant temperature technology used in most sample rooms at present, although the constant temperature speed is fast and the precision control is also high, the problem of uneven heating is common.

[0004] In addition, with the above technical measures, the system has certain technical deficiencies in terms of power consumption, volume and integration.

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