CN211825692U

CN211825692U - Trace uranium analyzer

Info

Publication number: CN211825692U
Application number: CN202020435600.1U
Authority: CN
Inventors: 忻智炜; 韩刚; 陆小军; 宋家斑
Original assignee: Shanghai Institute of Measurement and Testing Technology
Current assignee: Shanghai Institute of Measurement and Testing Technology
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-10-30
Anticipated expiration: 2030-03-30

Abstract

The utility model relates to the technical field of test detection devices, in particular to a trace uranium analyzer, which comprises a shell, a quartz cuvette, an ultraviolet light source and a detector, wherein the quartz cuvette and the ultraviolet light source are arranged in the shell, the detector is arranged outside the shell, and the shell is provided with an opening which is just opposite to the detector; still include magnetic stirrers, magnetic stirrers sets up in the casing, and the quartz cuvette place in magnetic stirrers's the main part, integrated heating module in the main part, magnetic stirrers's stirring is placed in the quartz cuvette. Firstly, the heating module on the main body can heat the solution, so that the stability of the sample solution can be ensured, and the range of the instrument can be increased due to different concentrations of the sample at different temperatures; secondly, the stirring bar can stir the sample solution, so that the uniformity of solution mixing can be ensured, and the accuracy of a measurement result can be ensured.

Description

Trace uranium analyzer

Technical Field

The utility model relates to an experimental detection device technical field especially relates to a trace uranium analyzer.

Background

The trace uranium analyzer is an optical instrument and is used for detecting the content of trace uranium elements in liquid samples in the fields of nuclear industry, radiation environmental protection, scientific research and the like. This instrument performance stable ultraviolet pulse light source needs the staff to put into the instrument with the quartz cuvette that is equipped with the sample during the test, and manual successively adds standard uranium ion solution and uranium fluorescence reinforcing agent, makes it form single uranyl ion complex, arouses the fluorescence signal that produces specific wavelength behind receiving the pulsed light, and the detector receives behind the signal automatic calculation corresponding uranium element content.

The problem that current trace uranium analysis appearance exists is: 1) the stability of the sample is poor; 2) the measuring range of the instrument is small; 3) the measured liquid sample often contains other components, and precipitation may occur after the uranium fluorescence enhancer is added, so that smooth measurement cannot be realized.

Therefore, a trace uranium analyzer is needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a trace uranium analyzer to solve the sample poor stability that exists among the prior art, the instrument measurement range is less and the sample produces the technical problem who deposits easily.

To achieve the purpose, the utility model adopts the following technical proposal:

a trace uranium analyzer comprises a shell, a quartz cuvette, an ultraviolet light source and a detector, wherein the quartz cuvette and the ultraviolet light source are arranged in the shell, the detector is arranged outside the shell, and the shell is provided with an opening opposite to the detector;

still include magnetic stirrers, magnetic stirrers set up in the casing, the quartz cuvette place in magnetic stirrers's the main part, integrated heating module in the main part, magnetic stirrers's stirring is placed in the quartz cuvette.

Preferably, the trace uranium analyzer further comprises a refrigeration module, and the shell is provided with an air inlet and an air outlet which are oppositely arranged.

Preferably, the trace uranium analyzer further comprises a temperature measuring device, and the temperature measuring device is arranged in the shell.

Preferably, the temperature measuring device is a thermocouple.

Preferably, the inner wall of the shell is provided with an insulating layer.

Preferably, the trace uranium analyzer further comprises an ultraviolet filter, wherein the ultraviolet filter is arranged between the ultraviolet light source and the quartz cuvette.

Preferably, the trace uranium analyzer further comprises a convex lens, and the convex lens is arranged between the ultraviolet light source and the ultraviolet filter.

Preferably, the trace uranium analyzer further comprises a green filter, and the green filter is arranged in the opening.

Preferably, the number of the detectors is two, and the two detectors are respectively arranged on two sides of the quartz cuvette.

Preferably, one of the detectors is a silicon photodiode, the other detector is a photomultiplier, or both of the detectors are silicon photodiodes, or both of the detectors are photomultiplier.

The utility model has the advantages that:

the utility model provides a trace uranium analyzer, which comprises a shell, a quartz cuvette, an ultraviolet light source and a detector, wherein the quartz cuvette and the ultraviolet light source are arranged in the shell; still include magnetic stirrers, magnetic stirrers sets up in the casing, and the quartz cuvette is placed in magnetic stirrers's main part, and the integration has heating module in the main part, and magnetic stirrers's stirring is placed in the quartz cuvette. The utility model provides a trace uranium analyzer has adopted magnetic stirrers, and the heating module integrated on magnetic stirrers's main part at first can heat the solution in the quartz cuvette to can guarantee the stability of sample solution, and because the concentration of sample when different temperatures is different, so can also increase the range of instrument; secondly, the stirring bar of the magnetic stirrer can stir the sample solution, so that the uniformity of solution mixing can be ensured, and the accuracy of a measurement result can be ensured.

Drawings

Fig. 1 is a front view of the micro uranium analyzer of the present invention;

fig. 2 is the utility model discloses trace uranium analyzer's top view.

In the figure:

10-a housing; 20-quartz cuvette; 30-a source of ultraviolet light; 40-a detector; 50-magnetic stirrer; 51-a body; 52-a stirrer; 60-ultraviolet filter; 70-convex lens; 80-green filter.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1 and fig. 2, the utility model provides a trace uranium analyzer, which comprises a casing 10, a quartz cuvette 20, an ultraviolet light source 30 and a detector 40, wherein the quartz cuvette 20 and the ultraviolet light source 30 are arranged in the casing 10, the detector 40 is arranged outside the casing 10, and the casing 10 is provided with an opening facing the detector 40; the quartz cuvette comprises a magnetic stirrer 50, wherein the magnetic stirrer 50 is arranged in a shell 10, the quartz cuvette 20 is placed on a main body 51 of the magnetic stirrer 50, a heating module is integrated on the main body 51, and a stirrer 52 of the magnetic stirrer 50 is placed in the quartz cuvette 20.

The magnetic stirrer 50 is a prior art laboratory instrument for liquid mixing, and is mainly used for simultaneously heating and stirring a liquid or a solid-liquid mixture of low viscosity. The basic principle is that the magnetic stirrer 52 placed in the container is pushed by the magnetic field to perform circumferential operation by utilizing the principle that like poles repel and opposite poles attract of the magnetic field, so that the aim of stirring liquid is fulfilled. The cooperation heating temperature control system can heat and control the sample temperature according to specific experimental requirement, maintains the required temperature condition of experimental condition, guarantees that liquid mixes and reaches the experiment demand.

The utility model provides a trace uranium analyzer has adopted magnetic stirrers 50, and the solution in quartz cuvette 20 can be heated to the heating module on magnetic stirrers 50's main part 51 at first to can guarantee the stability of sample solution, and because the concentration of sample when different temperatures is different, so can also increase the range of instrument; secondly, the stirrer 52 of the magnetic stirrer can stir the sample solution, so that the uniformity of solution mixing can be ensured, and the accuracy of the measurement result can be ensured.

Further, the utility model provides an air intake and the air outlet of relative setting are seted up on trace uranium analyzer's casing 10, and casing 10 can be blown in from the air intake to wind to blow off casing 10 from the air outlet, form the air current. Because of the integrated heating system that has in magnetic stirrers 50, when the temperature exceeded when predetermineeing temperature range in casing 10, accessible air current cooled down in to casing 10 to the temperature that makes in the casing 10 keeps invariable, thereby guarantees experimental stability.

Further, the utility model provides a trace uranium analyzer still includes temperature measuring device, and temperature measuring device sets up in casing 10 for measure the temperature in the casing 10, can control the adjustment according to the measuring result in real time to magnetic stirrers 50 and the air current that gets into casing 10, ensure the internal constancy of temperature of casing. Optionally, the temperature detection means is a thermocouple.

Furthermore, the inner wall of the shell 10 is provided with a heat insulation layer, so that the dissipation of heat in the shell 10 is effectively reduced.

Furthermore, the utility model provides a trace uranium analyzer still includes ultraviolet filter 60, and ultraviolet filter 60 sets up between ultraviolet source 30 and quartz cuvette 20 for extract the ultraviolet ray, reduce other light to experimental interference. Further, the trace uranium analyzer further includes a convex lens 70, the convex lens 70 is disposed between the ultraviolet light source 30 and the ultraviolet filter 60, and the convex lens 70 has a light-gathering effect to ensure the illumination intensity irradiated onto the quartz cuvette 20.

The utility model provides a trace uranium analyzer still includes green filter 80, and green filter 80 sets up in the opening. Because only green light is effective light, the green filter 80 can eliminate the interference of other light to the detector 40, and improve the accuracy of the measurement result.

Furthermore, the utility model provides a detector 40's of trace uranium detection instrument quantity is two, and two detectors 40 set up respectively in the both sides of quartz cuvette 20. Through setting up two detectors 40, multiplicable test data improves experimental accuracy, and when one of them detector 40 released the trouble in addition, another detector 40 can continue to test, guarantees experimental smooth going on.

Optionally, one of the two detectors 40 is a silicon photodiode, and the other detector 40 is a photomultiplier tube; alternatively, both detectors 40 are silicon photodiodes; or both detectors 40 may be photomultiplier tubes.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The trace uranium analyzer comprises a shell (10), a quartz cuvette (20), an ultraviolet light source (30) and a detector (40), wherein the quartz cuvette (20) and the ultraviolet light source (30) are arranged in the shell (10), the detector (40) is arranged outside the shell (10), and the shell (10) is provided with an opening opposite to the detector (40);

the quartz cuvette is characterized by further comprising a magnetic stirrer (50), wherein the magnetic stirrer (50) is arranged in the shell (10), the quartz cuvette (20) is placed on a main body (51) of the magnetic stirrer (50), a heating module is integrated on the main body (51), and a stirrer (52) of the magnetic stirrer (50) is placed in the quartz cuvette (20).

2. The trace uranium analyzer according to claim 1, wherein the casing (10) is provided with an air inlet and an air outlet which are arranged oppositely.

3. A trace uranium analyser according to claim 1, further comprising a temperature measurement device disposed within the housing (10).

4. A trace uranium analyser according to claim 3, wherein the temperature measuring device is a thermocouple.

5. A trace uranium analyser according to claim 1, wherein the inner wall of the casing (10) is provided with an insulating layer.

6. A trace uranium analyser according to claim 1, further comprising an ultraviolet filter (60), the ultraviolet filter (60) being disposed between the ultraviolet light source (30) and the quartz cuvette (20).

7. A trace uranium analyser according to claim 6, further comprising a convex lens (70), the convex lens (70) being disposed between the ultraviolet light source (30) and the ultraviolet filter (60).

8. A trace uranium analyser according to claim 1, further comprising a green filter (80), the green filter (80) being disposed within the opening.

9. A trace uranium analyser according to claim 1, wherein the number of detectors (40) is two, the two detectors (40) being respectively arranged on either side of the quartz cuvette (20).

10. A trace uranium analyser according to claim 9, wherein one of the detectors (40) is a silicon photodiode and the other detector (40) is a photomultiplier tube; or, both the two detectors (40) are silicon photodiodes; or both of the detectors (40) are photomultiplier tubes.