CN217033590U

CN217033590U - Trace uranium analyzer

Info

Publication number: CN217033590U
Application number: CN202220708221.4U
Authority: CN
Inventors: 陈洪生; 陈磊; 张孜纶
Original assignee: Beijing Zy Hongtong Technology Co ltd
Current assignee: Beijing Zy Hongtong Technology Co ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-07-22
Anticipated expiration: 2032-03-29

Abstract

The utility model provides a trace uranium analyzer, which comprises a main body, an ultraviolet light source, a detector and a detection reagent injection system, wherein the main body is provided with a light source; a sample chamber is arranged on the main body; the detection reagent injection system comprises an injection pump, a reagent container and an injection head; the input end of the liquid injection pump is connected with the reagent container through an input pipeline, and the output end of the liquid injection pump is connected with the liquid injection head through an output pipeline and used for dripping the reagent into the quartz cuvette in the sample chamber. The utility model has high automation degree, can ensure the analysis precision and reduce the direct contact between the workers and the sample, thereby being safer and more reliable.

Description

Trace uranium analyzer

Technical Field

The utility model relates to the technical field of detection instruments, in particular to a trace uranium analyzer.

Background

The trace uranium analyzer is a special photoelectric integrated instrument and is used for detecting the content of trace uranium elements in test samples in the fields of nuclear industry, radiation environmental protection, scientific research and the like. The ultraviolet fluorescence detector has stable performance, and a uranium fluorescence reinforcing agent needs to be manually added into a sample during sample testing to form a single uranyl ion complex, and the single uranyl ion complex is excited to generate a fluorescence signal with a specific wavelength after being subjected to pulsed light, so that the fluorescence signal is received by the detector. The fluorescence signal intensity reflects the uranium content.

The analysis method and process of the instrument must comply with relevant national industry standards. The existing trace uranium analyzer needs an operator to manually place a quartz cuvette filled with a sample into the analyzer for testing, and in the measuring process, a sample chamber needs to be manually opened twice to add detection reagents such as a fluorescence enhancer and a standard uranium ion solution. Besides the process consumes a lot of time, the required operations such as frequent manual precision liquid adding and the like have higher requirements on operators, and the analysis precision is not easy to ensure. And uranium-containing solutions have special radiation contamination, and fluorescence enhancers also have certain toxicity, which can cause health hazards if operators make frequent direct contact with them for a long time.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a trace uranium analyzer to solve at least one technical problem in the prior art.

In order to solve the technical problem, the utility model provides a trace uranium analyzer, which comprises: the device comprises a main body, an ultraviolet light source, a detector (or called a detection device) and a detection reagent injection system;

a sample chamber is arranged on the main body;

the detection reagent injection system comprises an injection pump, a reagent container and an injection head;

the input end of the liquid injection pump is connected with the reagent container through an input pipeline, and the output end of the liquid injection pump is connected with the liquid injection head through an output pipeline and used for dripping the reagent into the quartz cuvette in the sample chamber.

Further, the device also comprises a second conveying mechanism and a liquid collecting box;

an opening for the liquid injection head to extend in and withdraw from is arranged above the sample chamber;

the second conveying mechanism is used for conveying the liquid collecting box to the position below the liquid injection head, covering the opening and removing the liquid collecting box from the opening.

Before sample detection, the waste liquid in the pipeline and the liquid injection head needs to be discharged, after detection, the liquid injection pump, the pipeline and the liquid injection head need to be cleaned by using a cleaning liquid, wherein the liquid collection box is conveyed to the position below the liquid injection head by the second conveying mechanism, and the liquid collection box can be used for containing the waste liquid and the cleaning liquid. And the trace uranium analysis and detection needs a closed and dark environment, so the sample chamber needs to be in a dark room state during detection, and after the fluorescence enhancer or the quasi-uranium liquid is injected, the injection head needs to be withdrawn, and the opening is closed, so that a dark room environment is created.

When the injection head drops the detection reagent into the sample chamber quartz cuvette, the liquid collecting box needs to be removed from the opening.

Further, the detection reagent injection system comprises a fluorescence enhancer injection system and a standard uranium liquid injection system;

the fluorescence enhancer injection system comprises a first injection head, a first injection pump and a first container which are sequentially connected through a pipeline;

the standard uranium liquid injection system comprises a second liquid injection head, a second liquid injection pump and a second container which are sequentially connected through pipelines.

Further, the liquid injection device also comprises a first conveying mechanism used for extending the liquid injection head into the sample chamber from the outside.

Further, the first conveying mechanism is a lifting mechanism, and the liquid injection head is arranged on the telescopic end of the lifting mechanism.

Further, still include the waste liquid container, collection liquid box is provided with the leakage fluid dram, and the leakage fluid dram passes through the pipeline to be connected with the waste liquid container, and the hydrops accessible leakage fluid dram and pipeline in the collection liquid box flow into in the waste liquid container.

Furthermore, a door body is arranged on one side of the sample chamber, and the door body can be placed into a quartz cuvette containing the sample after being opened.

Further, the device also comprises a bearing platform and a third conveying mechanism;

the bearing platform is used for placing a quartz cuvette;

and the third conveying mechanism is used for moving the bearing platform out of or returning the bearing platform to the sample chamber so as to bring the quartz cuvette containing the sample into or out of the sample chamber.

Preferably, the door body is arranged on the third conveying mechanism and on the outer side of the bearing platform. Therefore, the automatic opening and closing of the door body can be realized.

Further, a magnetic stirrer is arranged at the bottom of the sample chamber and used for stirring the sample in the quartz cuvette in the sample chamber.

During the use, place magnetic stirrers's stirring seed in the quartz cuvette, magnetic stirrers's host computer rotates, utilizes magnetic force to drive the stirring seed at quartz cuvette internal rotation to the realization is to the stirring of sample.

Further, the ultraviolet light source is arranged on one side of the sample chamber; and further comprises a detector for detecting the intensity of the fluorescence.

Preferably, the detector is a silicon photodiode and/or a photomultiplier tube.

The number of the detectors can be one or more, and when the number of the detectors is more than one, the detectors can be respectively arranged on different side surfaces of the sample chamber; or the detector is arranged outside the sample chamber, and a window communicated with the detector head is arranged on the side wall of the sample chamber.

Further, a display screen (preferably a touch display screen) is arranged on the main body.

Further, a printer is embedded in the main body.

Wherein, the conveying mechanism preferably adopts an electric telescopic mechanism such as an air cylinder, a hydraulic cylinder or a sliding table.

By adopting the technical scheme, the utility model has the following beneficial effects:

the trace uranium analyzer provided by the utility model has high automation degree, can ensure analysis precision, and reduces direct contact between workers and samples, so that the trace uranium analyzer is safer and more reliable.

Drawings

In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings used in the detailed description or the prior art description will be briefly described below. It is obvious that the drawings in the following description are some embodiments of the utility model, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a perspective view of a trace uranium analyzer according to an embodiment of the present invention;

fig. 2 is a schematic diagram of the internal structure of the trace uranium analyzer shown in fig. 1 after a shell is removed;

fig. 3 is a schematic structural diagram of three conveying mechanisms in the embodiment.

Detailed Description

The technical scheme of the utility model is clearly and completely described in the following with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be further explained with reference to specific embodiments.

As shown in fig. 1 to 3, the trace uranium analyzer provided in this embodiment includes: a main body 10, an ultraviolet light source 20, a detector 21 (or detection device) and a detection reagent injection system 30; a sample chamber 14 is arranged on the main body 10; the detection reagent injection system 30 comprises an injection pump 31, a reagent container 32 and an injection head 33; the input end of the liquid injection pump 31 is connected with the reagent container 32 through an input pipeline, and the output end of the liquid injection pump 31 is connected with the liquid injection head 33 through an output pipeline, and is used for dropping the reagent into the quartz cuvette 1 in the sample chamber 14.

Wherein the detection reagent injection system 30 comprises a fluorescence enhancer injection system 30a and a standard uranium liquid injection system 30 b; the fluorescence-enhancer injection system 30a includes a first liquid-pouring head 33a, a first liquid-pouring pump 31a, and a first container 32a connected in this order by a pipeline; the standard uranium liquid injection system 30b comprises a second liquid injection head 33b, a second liquid injection pump 31b and a second container 32b which are connected in sequence through pipelines.

The present embodiment preferably further comprises a first transport mechanism 41 for externally transporting the two injection heads 33 into and out of the sample chamber 14. Two liquid injection heads 33 are provided on the moving end of the first conveying mechanism 41.

An opening 14a for the liquid injection head 33 to extend in and withdraw from is arranged above the sample chamber 14; the first conveying mechanism 41 is an elevating mechanism, and the liquid injection head 33 is provided at the telescopic end of the elevating mechanism.

Further, a second conveying mechanism 42 and a liquid collecting box 44 are also included; the second delivery mechanism 42 is used for delivering the liquid collecting box 44 to the position below the liquid injection head 33 and covering the opening 14a, and removing the liquid collecting box 44 from the opening 14a so that the liquid injection head 33 falls down and extends into the sample chamber 14 through the opening 14 a.

Before sample detection, waste liquid in the pipeline and in the liquid injection head 33 needs to be discharged, after detection, the liquid injection pump 31, the pipeline and the liquid injection head 33 need to be cleaned by using a cleaning liquid, wherein the liquid collection box 44 can be used for containing the waste liquid and the cleaning liquid.

The main body 10 is provided with a waste liquid container 13 below the liquid collecting box 44, the liquid collecting box 44 is provided with a liquid outlet, the liquid outlet is connected with the waste liquid container 13 through a pipeline, and accumulated liquid in the liquid collecting box 44 can flow into the waste liquid container 13 through the liquid outlet and the pipeline.

And, the analysis and detection of trace uranium needs a closed and dark environment, so the sample chamber 14 needs to be in a dark chamber state during detection, and after the injection of the fluorescence enhancer or quasi-uranium liquid, the injection head 33 needs to be withdrawn, and the opening 14a needs to be closed, so that a dark chamber environment is created.

A door body 14b is arranged on one side of the sample chamber 14, and the quartz cuvette 1 filled with the sample can be placed into the door body 14b after the door body 14b is opened.

On the basis of the above embodiment, it is preferable that the apparatus further includes a carrying platform 43a and a third conveying mechanism 43, where the carrying platform 43a is used for placing the quartz cuvette 1; the third transport mechanism 43 is used to move the platform 43a out of or back into the sample chamber 14. So as to facilitate the bringing in and the removing of the quartz cuvette 1 containing the sample into and from the sample chamber 14.

Preferably, the door 14b is disposed on the third conveying mechanism 43 and outside the carrying platform 43 a. The door 14b is fixedly connected with the bearing platform 43a relatively, so that the door 14b can be automatically opened and closed.

Further, a magnetic stirrer 45 is arranged at the bottom of the sample chamber 14 and is used for stirring the sample in the quartz cuvette 1 in the sample chamber 14. During the use, place magnetic stirrers 45's stirring seed in the quartz cuvette 1, magnetic stirrers 45's host computer rotates, utilizes magnetic force to drive the stirring seed at 1 internal rotations of quartz cuvette to the realization is to the stirring of sample.

Further, an ultraviolet light source 20 is arranged on one side of the sample chamber 14; the detector 21 for detecting the intensity of the fluorescence is a silicon photodiode and/or a photomultiplier tube. The number of the detectors 21 may be one or more. When multiple, they may be disposed on different sides of sample chamber 14; alternatively, the detector 21 is disposed outside the sample chamber 14, and a window communicating with a detection head of the detector 21 is disposed on a side wall of the sample chamber 14.

The main body 10 is further provided with a touch display screen 11. The main body 10 is fitted with a printer 12. Wherein, the conveying mechanism preferably adopts an electric telescopic mechanism such as an air cylinder, a hydraulic cylinder or a sliding table.

The trace uranium analyzer provided by the utility model has high automation degree, and reduces direct contact between workers and samples, so that the trace uranium analyzer is safer and more reliable.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A trace uranium analyzer, comprising: the device comprises a main body, an ultraviolet light source, a detector and a detection reagent injection system;

a sample chamber is arranged on the main body;

2. The trace uranium analyzer of claim 1, further comprising a second transport mechanism and a drip box;

3. The trace uranium analyzer of claim 1, wherein the detection reagent injection system comprises a fluorescence enhancer injection system and a standard uranium liquid injection system;

4. The trace uranium analyzer of claim 1, further comprising a first transport mechanism for externally extending the injector head into the sample chamber;

the first conveying mechanism is a lifting mechanism, and the liquid injection head is arranged on the telescopic end of the lifting mechanism.

5. The trace uranium analyzer of claim 2, further comprising a waste liquid container, wherein the liquid collection box is provided with a liquid discharge port, the liquid discharge port is connected with the waste liquid container through a pipeline, and accumulated liquid in the liquid collection box can flow into the waste liquid container through the liquid discharge port and the pipeline.

6. The trace uranium analyzer of claim 1, wherein a door is provided on one side of the sample chamber, and a quartz cuvette containing the sample can be placed into the door after the door is opened.

7. The trace uranium analyzer of claim 6, further comprising a load-bearing platform and a third transport mechanism;

the bearing platform is used for placing a quartz cuvette;

and the third conveying mechanism is used for moving the bearing platform out of or returning the bearing platform back to the sample chamber so as to bring the quartz cuvette containing the sample into or out of the sample chamber.

8. The trace uranium analyzer of claim 7, wherein the door is disposed on the third conveyor and outside the load-bearing platform.

9. The trace uranium analyzer of claim 1, wherein a magnetic stirrer is provided at the bottom of the sample chamber for stirring the sample in the quartz cuvette in the sample chamber.

10. The trace uranium analyzer of claim 1, wherein the ultraviolet light source is disposed on one side of the sample chamber; the detector is a silicon photodiode and/or a photomultiplier;

the number of the detectors is one or more; when the sample chamber is multiple, the detectors are respectively arranged on different side surfaces of the sample chamber;

and/or the detector is arranged outside the sample chamber, and a window communicated with the detector head is arranged on the side wall of the sample chamber.