A micro-uranium analyzer automatically adding a uranium fluorescence enhancer

Abstract

The application relates to the technical field of micro uranium analyzers, in particular to a micro uranium analyzer capable of automatically adding a uranium fluorescence enhancer, which comprises a liquid storage assembly, a quantitative conveying assembly and a driving assembly. The liquid storage assembly is communicated with the quantitative conveying assembly through a connecting piece, and the driving assembly drives a piston to realize accurate addition of the enhancer. A filter screen is arranged at the bottom of a liquid storage tank, exhaust holes are arranged at the top of a conveying cavity, a sealing valve is arranged at the bottom, a stepping motor provides power, and a fixing piece is used for mounting the liquid storage tank. The application can realize automatic transmission and accurate addition of the enhancer, avoids manual errors, improves the stability and portability of the instrument, prevents impurities from entering and bubbles from interfering, ensures the sealing property, and is suitable for various micro uranium analysis scenes.

Description

Technical Field

[0001] This utility model belongs to the field of analytical instrument technology, specifically a trace uranium analyzer that automatically adds uranium fluorescence enhancer. Background Technology

[0002] In the analysis and detection of trace uranium, the addition of uranium fluorescence enhancers is one of the key steps to improve detection sensitivity and accuracy. Currently, some trace uranium analyzers on the market can achieve high-precision detection of uranium, but these devices typically rely on manual operation or simple mechanical aids during the addition of fluorescence enhancers. This method is prone to inaccurate addition of enhancers due to human error, thus affecting the reliability of the detection results. Furthermore, existing trace uranium analyzers often require additional complex components in their structural design to quantitatively add the enhancer, which not only increases the manufacturing cost but also reduces the overall stability and portability of the instrument. Some existing trace uranium analyzers use manual dripping or semi-automatic injection methods to add the enhancer; however, precise control is difficult to achieve in actual operation, and the equipment is prone to leakage or blockage after prolonged use, further limiting its application range.

[0003] Therefore, we have made improvements to this and proposed a trace uranium analyzer that automatically adds uranium fluorescence enhancer. Utility Model Content

[0004] The purpose of this invention is to solve the problems of inaccurate addition, high equipment complexity, poor stability, and insufficient portability of existing trace uranium analyzers that rely on manual operation or simple mechanical auxiliary devices during the addition of fluorescence enhancers.

[0005] To achieve the aforementioned objectives and address the problems, this utility model provides an automatic uranium fluorescence enhancer addition micro-uranium analyzer, comprising an enhancer addition structure. The enhancer addition structure includes a liquid storage component, a quantitative delivery component, and a drive component. A connector is located at the bottom of the liquid storage component, and the quantitative delivery component is connected to the liquid storage component via the connector. The drive component is located on one side of the quantitative delivery component and drives the quantitative delivery component to accurately add the enhancer. A fixing component is located on the outside of the liquid storage component for mounting the liquid storage component to the analyzer body.

[0006] The quantitative delivery assembly includes a delivery chamber with a piston inside. A push rod is located below the piston, and the bottom end of the push rod is connected to a drive assembly. A liquid outlet is located at the bottom of the delivery chamber, and a sealing valve is located at the end of the liquid outlet. The sealing valve controls the outflow of the reinforcing agent. Graduation marks are provided on the side of the delivery chamber to indicate the amount of reinforcing agent added.

[0007] As a preferred technical solution of this application, the liquid storage assembly includes a liquid storage tank, the top of the liquid storage tank is provided with a liquid inlet, the outside of the liquid inlet is provided with a sealing cap, the bottom of the liquid storage tank is provided with a guide hole communicating with the conveying cavity, and the inner wall of the guide hole is provided with a filter screen to prevent impurities from entering the conveying cavity.

[0008] As a preferred technical solution of this application, the connector includes a connecting pipe, one end of which is threaded to the guide hole of the liquid storage tank, and the other end is threaded to the liquid inlet of the conveying cavity. A one-way valve is provided in the middle of the connecting pipe to prevent liquid backflow.

[0009] As a preferred technical solution of this application, the driving component includes a stepper motor, the output shaft of the stepper motor is fixedly connected to the top end of the push rod by a coupling, and the bottom of the stepper motor is provided with a mounting base.

[0010] As a preferred technical solution of this application, the fixing component includes a fixing plate, the fixing plate has mounting holes on both sides, and fastening bolts are provided in the mounting holes. The fastening bolts are used to fix the fixing plate to the bracket of the analyzer body. The top of the fixing plate has a clamping groove, and the inner wall of the clamping groove has an anti-slip pad for clamping the liquid storage tank.

[0011] As a preferred technical solution of this application, the sealing valve includes a valve body, and a spring is provided inside the valve body. One end of the spring is connected to the valve core, and the other end is fixedly connected to the inner wall of the valve body. A sealing ring is provided on the top of the valve core. When the reinforcing agent needs to flow out, the external pressure pushes the valve core to move downward, thereby opening the outlet.

[0012] As a preferred technical solution of this application, the top of the delivery cavity is provided with an exhaust hole, and the end of the exhaust hole is provided with a sealing plug to remove air from the cavity and prevent air bubbles from affecting the quantitative accuracy of the reinforcing agent.

[0013] As a preferred technical solution of this application, the outer wall of the storage tank is provided with a transparent observation window, and the surface of the observation window is provided with a capacity scale for real-time monitoring of the enhanced dose in the storage tank.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The automated transfer of the reinforcing agent from the storage tank to the delivery chamber is achieved through a specially designed liquid storage component, a quantitative delivery component, and a drive component. A stepper motor drives a piston to precisely add the reinforcing agent. This structural design avoids errors caused by manual operation, reduces reliance on complex components, lowers manufacturing costs, and improves the instrument's stability and portability. A filter at the bottom of the storage tank effectively prevents impurities from entering the delivery chamber, while a vent at the top of the delivery chamber ensures no air bubbles interfere with the process, further enhancing the accuracy of reinforcing agent addition. Furthermore, a sealing valve ensures the reinforcing agent remains sealed when not in operation, preventing leakage. The overall structure is compact and easy to maintain, making it suitable for various trace uranium analysis scenarios. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a cross-sectional view of the connection structure between the liquid storage component and the metering delivery component.

[0017] Figure 3 This is a structural detail diagram of the quantitative delivery component.

[0018] Figure 4 This is a schematic diagram of the assembly of the drive component and the quantitative conveying component.

[0019] Figure 5 This is a schematic diagram of the overall structure of the sealing valve.

[0020] The attached figures are labeled as follows: 1. Storage tank; 2. Conveying chamber; 3. Stepper motor; 4. Connecting pipe; 5. Check valve; 6. Piston; 7. Push rod; 8. Liquid outlet; 9. Sealing valve; 10. Valve core; 11. Spring; 12. Vent hole; 13. Filter screen; 14. Fixing plate; 15. Fastening bolts. Detailed Implementation

[0021] This invention provides a trace uranium analyzer with automatic addition of uranium fluorescence enhancer. Its main components include a liquid storage assembly, a quantitative delivery assembly, and a drive assembly. These components, through rational design and connection, achieve precise addition of the enhancer. The specific embodiments of this invention are described in detail below with reference to the accompanying drawings.

[0022] like Figure 1The diagram shows the overall structure of this utility model, illustrating the main components and their connections in the enhancer addition structure of the trace uranium analyzer. The liquid storage assembly consists of a storage tank 1. The top of the storage tank 1 has an inlet, and a sealing cap is fitted to the outside of the inlet to ensure that the liquid inside the storage tank 1 will not leak or become contaminated due to external environmental factors. A flow guide hole is provided at the bottom of the storage tank 1, and a filter screen 13 is installed on the inner wall of the flow guide hole to prevent impurities from entering the subsequent delivery chamber 2. The storage tank 1 is connected to the delivery chamber 2 via a connector, which includes a connecting pipe 4. One end of the connecting pipe 4 is threaded to the flow guide hole at the bottom of the storage tank 1, and the other end is threaded to the inlet end of the delivery chamber 2. A one-way valve 5 is provided in the middle of the connecting pipe 4. The function of the one-way valve 5 is to prevent liquid from flowing back from the delivery chamber 2 to the storage tank 1, thereby ensuring the directionality of liquid flow.

[0023] The core component of the quantitative delivery assembly is the delivery cavity 2, such as... Figure 3 As shown, a piston 6 is installed inside the conveying chamber 2. A push rod 7 is connected below the piston 6. The bottom end of the push rod 7 is fixedly connected to the output shaft of the stepper motor 3 via a coupling. The stepper motor 3, as a drive assembly, is installed inside the conveying chamber 2, and its bottom is equipped with a mounting base. Driven by the stepper motor 3, the piston 6 moves up and down along the inner wall of the conveying chamber 2, thereby completing the quantitative extraction and discharge operation of the reinforcing agent. A liquid outlet 8 is provided at the bottom of the conveying chamber 2, and a sealing valve 9 is installed at the end of the liquid outlet 8. The structure of the sealing valve 9 is as follows... Figure 5 As shown, it has an internal spring 11, one end of which is connected to the valve core 10, and the other end is fixed to the inner wall of the valve body. The top of the valve core 10 has a sealing ring. When the reinforcing agent needs to flow out, the external pressure pushes the valve core 10 downward, thereby opening the outlet 8 and allowing the reinforcing agent to flow out. This design can effectively maintain a seal in the non-working state and prevent reinforcing agent leakage.

[0024] The side of the delivery chamber 2 is marked with graduations to indicate the amount of reinforcing agent added, allowing operators to visually confirm the volume of reinforcing agent added. Additionally, the top of the delivery chamber 2 is equipped with a vent 12, the end of which is fitted with a sealing plug to expel air from the chamber and prevent air bubbles from interfering with the quantitative accuracy of the reinforcing agent. The outer wall of the storage tank 1 is equipped with a transparent observation window marked with volume graduations, facilitating real-time monitoring of the reinforcing agent dosage in the storage tank 1 and ensuring that operations are not interrupted due to insufficient liquid.

[0025] The outer side of the liquid storage tank 1 is equipped with a fixing component, which includes a fixing plate 14. The fixing plate 14 has mounting holes on both sides, and fastening bolts 15 are installed in the mounting holes. The fastening bolts 15 fix the fixing plate 14 to the bracket of the analyzer body. The top of the fixing plate 14 is provided with a clamping groove, and the inner wall of the clamping groove is provided with an anti-slip pad for clamping the liquid storage tank 1 to prevent it from loosening or falling off due to vibration or other external forces during use.

[0026] In actual operation, an appropriate amount of uranium fluorescence enhancer is first injected through the inlet at the top of the storage tank 1. After closing the sealing cap, the stepper motor 3 is started. The stepper motor 3 drives the push rod 7 to move up and down through the coupling. The movement of the push rod 7 further pushes the piston 6 to reciprocate within the delivery chamber 2. When the piston 6 moves upward, a negative pressure is formed in the delivery chamber 2, and the enhancer in the storage tank 1 flows into the delivery chamber 2 through the filter screen 13 and the one-way valve 5. When the piston 6 moves downward, the enhancer in the delivery chamber 2 is subjected to pressure and flows out through the outlet 8 and pushes open the sealing valve 9, finally being added to the detection area of ​​the trace uranium analyzer. During this process, the scale markings on the side of the delivery chamber 2 help the operator accurately control the amount added, while the vent 12 ensures that there are no air bubbles interfering in the chamber, improving the accuracy of the enhancer addition.

[0027] The entire device achieves automated addition of the reinforcing agent through the close cooperation between the aforementioned components. This not only avoids errors that may arise from manual operation but also significantly reduces the complexity of the equipment, improving the stability and portability of the instrument. The connection and positional relationships between the components are rationally designed, ensuring smooth liquid flow while effectively preventing problems such as impurities entering and liquid backflow.

[0028] To enable those skilled in the art to fully understand and implement this utility model, the specific implementation principles of this utility model are further explained below in conjunction with specific application scenarios.

[0029] In the actual testing process of the trace uranium analyzer, the uranium fluorescence enhancer is first injected through the inlet at the top of the storage tank 1 to ensure that the liquid volume is sufficient for multiple tests. After the sealing cap is closed, the storage tank 1 is securely mounted on the analyzer body via the clamping groove on the fixing plate 14. The anti-slip pads on the inner wall of the clamping groove effectively prevent the storage tank 1 from loosening or falling off during operation. At this time, the stepper motor 3 is started, and the stepper motor 3 drives the push rod 7 to move up and down through the coupling, thereby driving the piston 6 to reciprocate within the delivery chamber 2.

[0030] When piston 6 moves upward, a negative pressure is created inside delivery chamber 2. This negative pressure is transmitted to the guide hole at the bottom of storage tank 1 through connecting pipe 4. Due to the presence of check valve 5, liquid can only flow from storage tank 1 to delivery chamber 2 without backflow. During this process, filter screen 13 performs preliminary filtration of impurities in the enhancer, ensuring that the liquid entering delivery chamber 2 is pure and uncontaminated. By observing the scale markings on the side of delivery chamber 2, it can be visually confirmed whether the extracted enhancer dosage meets the requirements. If air is present in delivery chamber 2, it can be removed through vent hole 12 to avoid interfering with the quantitative accuracy.

[0031] Subsequently, as piston 6 moves downward, the enhancing agent in delivery chamber 2 is pressurized and flows through outlet 8 to sealing valve 9. At this time, external pressure overcomes the elastic force of spring 11, pushing valve core 10 downward, causing the sealing ring to separate from the valve body, thereby opening outlet 8 and allowing the enhancing agent to flow out. The enhancing agent is ultimately precisely added to the detection area of ​​the trace uranium analyzer, completing the automated addition of fluorescence enhancing agent. The design of sealing valve 9 ensures that in the non-operating state, valve core 10 automatically resets under the action of spring 11, maintaining a sealed state and preventing enhancing agent leakage.

[0032] In actual testing, the transparent observation window on the outer wall of the storage tank 1 allows for real-time monitoring of the remaining liquid level. When insufficient liquid is detected in the storage tank 1, it can be replenished promptly through the inlet without interrupting the testing process. Furthermore, the entire device achieves a secure assembly of all components through threaded connections and fastening bolts 15, ensuring smooth liquid flow and enhancing the overall stability of the equipment. The precise control capability of the stepper motor 3 ensures highly consistent dosage of the enhancement agent added each time, significantly improving the reliability of the test results.

[0033] Through the above steps, this invention achieves automated and precise addition of the reinforcing agent. The one-way valve 5 between the storage tank 1 and the delivery chamber 2 effectively prevents liquid backflow, while the filter screen 13 further improves the purity of the liquid. The vent 12 eliminates the influence of air bubbles in the chamber on quantitative accuracy, and the structural design of the sealing valve 9 provides reliable sealing performance in the non-operating state. The overall device has a compact structure and is easy to operate, which not only reduces the probability of human error but also significantly improves the stability and portability of the trace uranium analyzer, making it suitable for various trace uranium detection scenarios.

[0034] All content not described in detail in this specification belongs to existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are existing technology and are therefore not shown in the figures, and will not be described further here. The above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A trace uranium analyzer with automatic addition of uranium fluorescence enhancer, characterized in that, The device includes a reinforcing agent incorporation structure, which comprises a liquid storage component, a metering delivery component, and a drive component. The liquid storage component has a connector at its bottom, and the metering delivery component is connected to the liquid storage component via the connector. The drive component is located on one side of the metering delivery component, and a fixing component is located on the outside of the liquid storage component.

2. The trace uranium analyzer with automatic addition of uranium fluorescence enhancer according to claim 1, characterized in that, The quantitative delivery assembly includes a delivery chamber (2), inside which is provided a piston (6), and below the piston (6) is provided a push rod (7). The bottom end of the push rod (7) is connected to the drive assembly. The bottom of the delivery chamber (2) is provided with a liquid outlet (8), and the end of the liquid outlet (8) is provided with a sealing valve (9).

3. The trace uranium analyzer with automatic addition of uranium fluorescence enhancer according to claim 2, characterized in that, The liquid storage assembly includes a liquid storage tank (1), the top of the liquid storage tank (1) is provided with a liquid inlet, the outside of the liquid inlet is provided with a sealing cap, the bottom of the liquid storage tank (1) is provided with a guide hole communicating with the delivery cavity (2), and the inner wall of the guide hole is provided with a filter screen (13).

4. A trace uranium analyzer with automatic addition of uranium fluorescence enhancer according to claim 3, characterized in that, The connector includes a connecting pipe (4), one end of which is threaded to the guide hole of the storage tank (1), and the other end is threaded to the inlet end of the conveying cavity (2). A one-way valve (5) is provided in the middle of the connecting pipe (4).

5. A trace uranium analyzer with automatic addition of uranium fluorescence enhancer according to claim 2, characterized in that, The drive assembly includes a stepper motor (3), the output shaft of which is fixedly connected to the top of the push rod (7) via a coupling, and the bottom of the stepper motor (3) is provided with a mounting base.

6. The trace uranium analyzer with automatic addition of uranium fluorescence enhancer according to claim 1, characterized in that, The fixing component includes a fixing plate (14), which has mounting holes on both sides and fastening bolts (15) in the mounting holes. The top of the fixing plate (14) has a clamping groove, and the inner wall of the clamping groove has an anti-slip pad.

7. A trace uranium analyzer with automatic addition of uranium fluorescence enhancer according to claim 2, characterized in that, The sealing valve (9) includes a valve body, and a spring (11) is provided inside the valve body. One end of the spring (11) is connected to the valve core (10), and the other end is fixedly connected to the inner wall of the valve body. A sealing ring is provided on the top of the valve core (10).

8. A trace uranium analyzer with automatic addition of uranium fluorescence enhancer according to claim 2, characterized in that, The top of the conveying cavity (2) is provided with an exhaust hole (12), and the end of the exhaust hole (12) is provided with a sealing plug.

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