Radioactive solution quantitative dilution device

Abstract

The utility model discloses radioactive solution quantitative dilution device relates to radioactive solution processing technical field. This radioactive solution quantitative dilution device, including the shell, the shell top seal fixed mounting has the sealing top cover, the fixed mounting of support has on the sealing top cover, the fixed mounting of first plunger pump and second plunger pump has respectively in the both ends of support, the input of first plunger pump is fixedly connected with radioactive solution entrance, the input of second plunger pump is fixedly connected with dilution solution entrance, the vertical setting of rotation is connected with the pivot on the sealing top cover, the fixed mounting of gear box has on the position of sealing top cover corresponding pivot, and the gear set cooperation in gear box drives pivot with servo motor, drives two layers of stirring pulp to rotate, and the solution mixes more evenly in the cooperation of upper and lower layers and stirs, avoids partial concentration uneven, and liquid level meter real -time monitoring liquid level, and the mixed amount is convenient for grasping, and outlet pipe and valve can control solution discharge flexibly, satisfies different use demand.

Description

Technical Field

[0001] This utility model relates to the field of radioactive solution processing technology, and in particular to a device for quantitative dilution of radioactive solutions. Background Technology

[0002] In the field of radioactive solution processing, dilution is a key step in ensuring the safety and effectiveness of its subsequent application. However, traditional processing methods have many drawbacks, which bring significant risks and inconveniences to the operation process.

[0003] Patent application number CN202320856929.9 discloses an automatic solution dilution device. This solution can solve the problems of poor accuracy and difficulty in control during the dilution process, as well as the slow dilution rate and time consumption. However, this solution still has the following problems:

[0004] First, in terms of safety protection, existing methods often lack effective sealing and isolation measures. Radioactive solutions are prone to leakage during transfer and mixing, which can cause radioactive materials to spread into the operating environment. This not only contaminates the work surface, equipment and surrounding space, but also exposes operators to radiation for a long time, increasing the risk of cumulative radiation damage and posing a serious threat to their health.

[0005] Secondly, quantitative accuracy is difficult to guarantee. Traditional dilution often relies on manual experience to control the amount of solution added, or on simple delivery tools for transfer. It is impossible to accurately control the ratio of radioactive mother liquor to diluent, often resulting in problems of over- or under-addition. This causes the concentration of the diluted solution to deviate from the expected value, affecting the accuracy of subsequent experimental data or the safety of clinical applications. It may even lead to the risk of radiation dose exceeding the limit due to excessive concentration.

[0006] Regarding the uniformity of mixing, existing stirring methods are mostly simple manual shaking or stirring in one direction, which makes it difficult to fully mix the two solutions and easily leads to local uneven concentration. Some areas have excessively high radioactivity, while others have too low radioactivity, which fails to meet the requirements for uniformity and thus affects the reliability of experimental results or the stability of treatment effects.

[0007] During operation, the lack of effective real-time monitoring and emergency control means that operators cannot intuitively grasp the changes in the liquid level of the mixing system, cannot promptly determine whether the expected dilution volume has been reached, and cannot quickly terminate the operation in case of abnormalities. They can only rely on manual shutdown of the equipment, which prolongs the exposure time to danger and increases the possibility of the accident escalating. Utility Model Content

[0008] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a device for quantitative dilution of radioactive solutions, which can solve the problems of insufficient safety protection and lack of real-time monitoring and emergency control.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A radioactive solution quantitative dilution device includes a housing, a sealed top cover fixedly installed on the top of the housing, a bracket fixedly installed on the sealed top cover, a first plunger pump and a second plunger pump fixedly installed at both ends of the bracket, the input end of the first plunger pump is fixedly connected to a radioactive solution inlet, the input end of the second plunger pump is fixedly connected to a dilution solution inlet, and the output ends of the first plunger pump and the second plunger pump are both connected to pipes, the pipes extending into the interior of the housing and the outlet end located above the mixing and stirring area inside the housing;

[0011] A vertically arranged rotating shaft is rotatably connected to the sealing top cover. A gearbox is fixedly installed on the sealing top cover at the position corresponding to the rotating shaft. A gear set is rotatably connected inside the gearbox. The gear set includes a driving gear and a driven gear that mesh with each other. The driven gear is fixedly installed on the upper end of the rotating shaft. A servo motor is fixedly installed above the gearbox. The driving gear is fixedly installed on the output shaft of the servo motor.

[0012] Two layers of stirring paddles are fixedly installed on the rotating shaft inside the outer shell, a base is fixedly installed on the bottom of the outer shell, an outlet pipe is fixedly installed on the lower side of the outer shell, and a valve is fixedly installed on the outlet pipe.

[0013] A level gauge is fixedly installed through the other side wall of the housing. The detection end of the level gauge is connected to the internal cavity of the housing. An emergency stop button is fixedly installed on the sealed top cover near the operator.

[0014] Preferably, the first plunger pump and the second plunger pump are symmetrically distributed along the central axis of the support.

[0015] Preferably, the outlet end of the pipe is located directly above the space between the two layers of agitator.

[0016] Preferably, the gearbox is coaxially arranged with the rotating shaft, and the bottom of the gearbox is sealed to the top cover.

[0017] Preferably, the two layers of agitator are evenly spaced along the axis of rotation, and each layer of agitator includes at least two symmetrically arranged blades.

[0018] Preferably, the level gauge penetrates vertically through the side wall of the housing, and the detection end of the level gauge extends to the bottom area inside the housing.

[0019] Preferably, the installation height of the emergency stop button is adapted to the height of the operator's hands when standing, and the button surface is provided with anti-slip protrusions.

[0020] Preferably, an annular sealing gasket is provided at the connection between the sealing top cover and the outer shell, and the sealing gasket is made of radiation-resistant fluororubber.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] (1) The radioactive solution quantitative dilution device has a gear set in the gearbox that works with a servo motor to drive the rotating shaft, which drives the two layers of stirring paddles to rotate. The upper and lower layers work together to make the solution mix more evenly and avoid local uneven concentration. The liquid level gauge monitors the liquid level in real time, making it easy to control the mixing volume. The outlet pipe and valve can flexibly control the solution discharge to meet different usage needs.

[0023] (2) The radioactive solution quantitative dilution device has an outer shell and a sealed top cover forming a closed space, which can prevent the radioactive solution from leaking, reduce the radiation risk, and ensure the safety of the operating environment. The first plunger pump and the second plunger pump respectively quantitatively deliver the radioactive solution and the dilution solution. Combined with the pipeline, the precise guidance to the mixing area ensures that the two solutions are mixed in a preset ratio, thereby improving the dilution accuracy.

[0024] (3) The radioactive solution quantitative dilution device has an emergency stop button that can quickly shut down the device in case of an abnormality, further ensuring safety. The bracket fixes the plunger pump, and the base stabilizes the overall structure, reducing the impact of operating vibration on the equipment and improving the device's operating stability and service life. The overall design takes into account safety, accuracy and practicality, and is suitable for radioactive solution dilution scenarios. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0026] Figure 1 This is a schematic diagram of the radioactive solution quantitative dilution device of this utility model;

[0027] Figure 2 This is a schematic diagram of the radioactive solution quantitative dilution device of this utility model;

[0028] Figure 3 This is a schematic cross-sectional view of the radioactive solution quantitative dilution device of this utility model;

[0029] Figure 4 This is a cross-sectional schematic diagram of the radioactive solution quantitative dilution device of this utility model.

[0030] Reference numerals: 1. Outer casing; 2. Support frame; 3. First plunger pump; 4. Radioactive solution inlet; 5. Pipeline; 6. Servo motor; 7. Second plunger pump; 8. Diluent solution inlet; 9. Gearbox; 10. Shaft; 11. Gear set; 12. Sealing top cover; 13. Outlet pipe; 14. Valve; 15. Base; 16. Level gauge; 17. Emergency stop button; 18. Agitator. Detailed Implementation

[0031] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0032] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0034] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0035] Please see Figure 1-4 This utility model provides a technical solution: a radioactive solution quantitative dilution device, including a shell 1, a sealed top cover 12 is fixedly installed on the top of the shell 1, a bracket 2 is fixedly installed on the sealed top cover 12, a first plunger pump 3 and a second plunger pump 7 are fixedly installed at both ends of the bracket 2 respectively, the input end of the first plunger pump 3 is fixedly connected to a radioactive solution inlet 4, the input end of the second plunger pump 7 is fixedly connected to a dilution solution inlet 8, and the output ends of the first plunger pump 3 and the second plunger pump 7 are both connected to pipes 5 extending into the interior of the shell 1, and the outlet end of the pipes 5 is located above the mixing and stirring area inside the shell 1;

[0036] The outer casing 1 provides a closed mixing space for the device, and its top is sealed by a sealing top cover 12 to prevent leakage of radioactive solution during mixing and reduce radiation risk. The bracket 2 fixed on the sealing top cover 12 provides installation support for the first plunger pump 3 and the second plunger pump 7, ensuring their stable operation. During operation, the radioactive solution enters the first plunger pump 3 through the radioactive solution inlet 4, and the dilution solution enters the second plunger pump 7 through the dilution solution inlet 8. The first plunger pump 3 and the second plunger pump 7 respectively deliver the two solutions in a quantitative manner. The pipe 5 at their output end guides the solution into the interior of the outer casing 1, and the outlet end of the pipe 5 is located above the mixing and stirring area, allowing the two solutions to directly enter the area to be stirred, preparing for subsequent uniform mixing.

[0037] A vertically arranged rotating shaft 10 is rotatably connected to the sealing top cover 12. A gear box 9 is fixedly installed on the sealing top cover 12 at the position corresponding to the rotating shaft 10. A gear set 11 is rotatably connected inside the gear box 9.

[0038] Gear set 11 includes a driving gear and a driven gear, the driving gear and the driven gear mesh, the driven gear is fixedly installed on the upper end of the rotating shaft 10, a servo motor 6 is fixedly installed on the top of the gearbox 9, and the driving gear is fixedly installed on the output shaft of the servo motor 6;

[0039] The vertical shaft 10 rotatably connected to the sealed top cover 12 is the transmission component of the stirring power. Its lower end extends into the housing 1 and is used to drive the stirring paddle 18 to rotate. The gearbox 9 installed on the sealed top cover 12 at the position corresponding to the shaft 10 provides a closed installation and operating space for the gear set 11, which can protect the gear set 11 from external contamination and ensure stable gear meshing. The gear set 11 rotates in the gearbox 9 and undertakes the power transmission function, transmitting the rotational power of the servo motor 6 to the shaft 10, so that the shaft 10 obtains a stable rotational driving force.

[0040] The driving gear and driven gear of the gear set 11 mesh with each other to form the core structure of power transmission. When the servo motor 6 starts, its output shaft drives the driving gear to rotate. The driving gear drives the driven gear to rotate synchronously through meshing. Since the driven gear is fixedly installed on the upper end of the rotating shaft 10, the rotation of the driven gear will directly drive the rotating shaft 10 to rotate, thereby providing rotational power for the stirring paddle 18 inside the outer shell 1 to realize the solution stirring function.

[0041] Two layers of agitator 18 are fixedly installed on the rotating shaft 10 inside the outer casing 1, and the two layers of agitator 18 are distributed at intervals along the axial direction of the rotating shaft 10.

[0042] Two layers of stirring paddles 18 are fixedly installed on the rotating shaft 10 inside the outer shell 1. They rotate synchronously under the drive of the rotating shaft 10. The two layers of stirring paddles 18 are distributed at intervals along the axial direction of the rotating shaft 10, which can stir the solution at different heights: the lower stirring paddle 18 stirs the solution at the bottom of the outer shell 1, and the upper stirring paddle 18 stirs the solution in the middle and upper part. Through the synergistic effect of the upper and lower layers, the convection and mixing effect of the solution is enhanced, ensuring that the radioactive solution and the dilution solution are fully and uniformly mixed.

[0043] A base 15 is fixedly installed at the bottom of the outer casing 1, and an outlet pipe 13 is fixedly installed on the lower side of the outer casing 1. A valve 14 is fixedly installed on the outlet pipe 13.

[0044] The base 15 at the bottom of the outer casing 1 provides stable support for the entire device, preventing displacement due to vibration during operation. After the solution is mixed, the mixed solution can be discharged through the outlet pipe 13 at the lower side of the outer casing 1. The valve 14 on the outlet pipe 13 is used to control the opening and closing of the outlet pipe 13. The operator can control the timing and flow rate of the mixed solution discharge by opening or closing the valve 14 to ensure that a quantitative amount of diluted solution is obtained as needed.

[0045] A level gauge 16 is fixedly installed through the other side wall of the outer casing 1. The detection end of the level gauge 16 is connected to the internal cavity of the outer casing 1. An emergency stop button 17 is fixedly installed on the sealed top cover 12 near the operator.

[0046] A level gauge 16 is fixed through the other side wall of the outer casing 1. Its detection end is connected to the internal cavity of the outer casing 1, which can monitor the liquid level of the mixed solution inside the outer casing 1 in real time. This allows the operator to determine whether the amount of mixed solution has reached the expected level. An emergency stop button 17 is located on the sealed top cover 12 near the operator. In case of an abnormality, the operator can quickly press the button to stop the device immediately, thereby preventing the danger from escalating and ensuring operational safety.

[0047] Working principle: During use, the radioactive solution enters the first plunger pump 3 through the radioactive solution inlet 4, and the dilution solution enters the second plunger pump 7 through the dilution solution inlet 8. The two pumps deliver the solution in a metered manner and send it to the mixing and stirring area inside the outer shell 1 through the pipeline 5. The servo motor 6 drives the gear set 11 inside the gearbox 9, which drives the rotating shaft 10 to rotate, so that the two layers of stirring paddles 18 inside the outer shell 1 rotate and stir the solution. The level gauge 16 monitors the liquid level. After mixing, the solution is discharged through the outlet pipe 13 and valve 14. In case of abnormality, press the emergency stop button 17 to stop the device. The sealing top cover 12 ensures the seal. The bracket 2 fixes the plunger pump and the base 15 stabilizes the device.

[0048] The outer shell 1 and the sealed top cover 12 form a closed space, which can prevent the leakage of radioactive solution, reduce radiation risk, and ensure the safety of the operating environment. The first plunger pump 3 and the second plunger pump 7 respectively deliver radioactive solution and dilution solution in a quantitative manner. Combined with the pipeline 5, the solution is precisely guided to the mixing area to ensure that the two solutions are mixed in a preset ratio and improve the dilution accuracy.

[0049] The gear set 11 inside the gearbox 9 works with the servo motor 6 to drive the rotating shaft 10, which in turn drives the two layers of stirring paddles 18 to rotate. The upper and lower layers work together to make the solution more uniformly mixed and avoid local uneven concentration. The liquid level gauge 16 monitors the liquid level in real time to make it easy to control the mixing volume. The outlet pipe 13 and valve 14 can flexibly control the solution discharge to meet different usage needs.

[0050] The emergency stop button 17 can quickly shut down the device in case of an abnormality, further ensuring safety. The bracket 2 fixes the plunger pump, and the base 15 stabilizes the overall structure, reducing the impact of operating vibration on the equipment and improving the stability and service life of the device. The overall design takes into account safety, accuracy and practicality, and is suitable for radioactive solution dilution scenarios.

[0051] Structural Description:

[0052] Outer shell 1: The whole is a closed cavity structure, usually made of radiation-resistant and corrosion-resistant materials. Location information: the outermost layer of the device, sealed to the top cover 12 at the top and fixed to the base 15 at the bottom. Function: to provide a closed space for mixing radioactive solution and dilution solution, to prevent radiation diffusion caused by solution leakage, and to protect internal components from external environmental interference.

[0053] Support 2: It is a rigid frame structure, long and narrow. Position information: It is horizontally fixed on the upper surface of the sealed top cover 12, with both ends extending to the corresponding positions. Function: It provides stable installation support for the first plunger pump 3 and the second plunger pump 7, ensuring that they will not be displaced due to vibration during operation, and guaranteeing the quantitative delivery accuracy.

[0054] First plunger pump 3: It is a precision quantitative delivery device with an input end and an output end interface. Position information: It is fixedly installed at one end of the bracket 2. The input end is connected to the radioactive solution inlet 4, and the output end is connected to the pipeline 5. Function: Through the reciprocating motion of the mechanical plunger, it quantitatively extracts and delivers the radioactive solution entering from the radioactive solution inlet 4, ensuring that the volume of radioactive solution delivered each time is accurate and controllable.

[0055] Radioactive solution inlet 4: It is a tubular interface structure made of radiation-resistant material. Location information: One end is connected to an external radioactive solution source, and the other end is fixedly connected to the input end of the first plunger pump 3. Function: It serves as a channel for the radioactive solution to enter the device, introducing the external radioactive solution into the first plunger pump 3 to achieve solution input guidance.

[0056] Pipe 5: It is a hollow tubular structure made of radiation-resistant and corrosion-resistant materials. Location information: One end is connected to the output end of the first plunger pump 3 and the second plunger pump 7 respectively, and the other end extends into the inside of the outer shell 1. The outlet end is located above the mixing and stirring area inside the outer shell 1. Function: It guides the radioactive solution delivered by the first plunger pump 3 and the dilution solution delivered by the second plunger pump 7 to the mixing and stirring area inside the outer shell 1, so that the two solutions can directly enter the area to be stirred, creating conditions for subsequent uniform mixing.

[0057] Servo motor 6: It is a power output device with an output shaft. Position information: It is fixedly installed above the gearbox 9. The output shaft extends into the gearbox 9 and is connected to the drive gear of the gear set 11. Function: It provides rotational power and drives the drive gear of the gear set 11 to rotate through the output shaft, thereby driving the entire stirring mechanism to run. Its speed can be precisely controlled to ensure stable stirring speed.

[0058] Second plunger pump 7: is a precision quantitative delivery device with a structure similar to the first plunger pump 3. It has an input end and an output end interface. Position information: It is fixedly installed at the other end of the bracket 2. The input end is connected to the dilution solution inlet 8, and the output end is connected to the pipeline 5. Function: It quantitatively extracts and delivers the dilution solution entering from the dilution solution inlet 8. It works in conjunction with the first plunger pump 3 to ensure that the two solutions are delivered to the mixing area in a preset ratio.

[0059] Diluent inlet 8: It is a tubular interface structure made of corrosion-resistant material. Location information: One end is connected to an external diluent source, and the other end is fixedly connected to the input end of the second plunger pump 7. Function: It serves as a channel for diluent to enter the device, introducing external diluent into the second plunger pump 7 to guide the input of the solution.

[0060] Gearbox 9: It is a closed housing structure that can accommodate gear set 11. Position information: It is fixedly installed on the sealed top cover 12 at the position corresponding to the rotating shaft 10. The bottom is sealed and connected to the sealed top cover 12. The servo motor 6 is installed on the top. Function: It provides a closed installation and running space for gear set 11, prevents external dust and liquid from entering and affecting gear meshing, and protects gear set 11 from direct radiation to ensure stable and reliable power transmission.

[0061] Rotating shaft 10: It is a vertically set rigid shaft made of high strength and corrosion resistance. Position information: The upper end passes through the sealing top cover 12 and extends into the gearbox 9 to connect with the driven gear of the gear set 11. The lower end extends into the housing 1 and is fitted with the stirring paddle 18, which is rotatably connected to the sealing top cover 12. Function: As an intermediate component for power transmission, it transmits the rotational power transmitted by the gear set 11 to the stirring paddle 18, which drives the stirring paddle 18 to rotate, thereby realizing the stirring function of the solution.

[0062] Gear set 11: Composed of a driving gear and a driven gear that mesh with each other, both of which are metal gear structures. Position information: Installed inside the gearbox 9. The driving gear is fixed on the output shaft of the servo motor 6, and the driven gear is fixedly sleeved on the upper end of the rotating shaft 10. The two mesh with each other. Function: Through the meshing transmission of the driving gear and the driven gear, the rotational power of the servo motor 6 is transmitted to the rotating shaft 10, realizing the direction of power and speed adjustment (according to the gear transmission ratio), and ensuring that the rotating shaft 10 obtains a stable rotational driving force.

[0063] Sealed top cover 12: A cover structure that matches the outer shell 1, with sealing performance. Position information: It is sealed and fixedly installed above the outer shell 1, forming a closed space with the outer shell 1. The upper surface is equipped with components such as bracket 2, gearbox 9, and emergency stop button 17. Function: To achieve top sealing of the outer shell 1, prevent radioactive solution from leaking from the top during mixing, and at the same time provide a mounting base for components such as bracket 2 and gearbox 9.

[0064] Outlet pipe 13: It is a tubular structure made of radiation-resistant and corrosion-resistant material. Location information: One end is fixedly installed on the lower side of the outer shell 1 and communicates with the internal cavity of the outer shell 1. The other end can be connected to an external collection device. A valve 14 is installed on the pipe. Function: It serves as an output channel for the mixed solution, guiding the uniformly mixed solution inside the outer shell 1 to the outside for easy collection and use.

[0065] Valve 14: A valve body structure that can control on / off switching, usually manual or electromagnetic control type. Location information: Fixedly installed on the outlet pipe 13, located in the middle of the outlet pipe 13 or on the side near the housing 1. Function: Controls the on / off switching of the outlet pipe 13. By opening or closing valve 14, the timing and flow rate of the mixed solution discharge are adjusted to ensure that a quantitative amount of diluted solution is obtained as needed and to prevent the solution from flowing out under unexpected conditions.

[0066] Base 15: A rigid support structure, usually flat or with support feet. Position information: Fixedly installed at the bottom of the outer shell 1, forming an integral part with the outer shell 1. Function: Provides stable support for the entire device, reduces displacement caused by vibration of internal components during operation, enhances the overall stability of the device, and ensures that the coordinated operation of each component is not affected by vibration.

[0067] Level gauge 16: This is an instrument that can detect liquid level. It has a detection end and a display end. Position information: It is fixedly installed through the other side wall of the outer shell 1. The detection end extends into the internal cavity of the outer shell 1 and contacts the solution. The display end is located outside the outer shell 1. Function: It monitors the liquid level of the mixed solution inside the outer shell 1 in real time, so that the operator can intuitively grasp whether the mixing amount of the solution has reached the expected level and avoid the solution overflowing or insufficient mixing.

[0068] Emergency Stop Button 17: This is a button structure with an emergency braking function. It is usually marked with a conspicuous sign. Location information: It is fixedly installed on the sealed top cover 12 on the side close to the operator, in a position that is easily accessible to the operator. Function: In the event of an abnormal situation in the device (such as leakage, stirring failure, etc.), the operator can quickly press this button to immediately stop all operating parts of the device (such as plunger pump, servo motor, etc.) to prevent the danger from spreading and to ensure the safety of the operator and the equipment.

[0069] Agitator 18: It has a blade-like structure with two layers. The material is radiation-resistant and corrosion-resistant. Position information: It is fixedly installed on the rotating shaft 10 inside the outer shell 1. The two layers are distributed at intervals along the axial direction of the rotating shaft 10. Function: It rotates under the drive of the rotating shaft 10 to stir the solution at different heights. The lower agitator stirs the solution at the bottom of the outer shell, and the upper agitator stirs the solution in the middle and upper parts. The synergistic effect of the upper and lower layers enhances the convection of the solution and ensures that the radioactive solution and the dilution solution are fully and uniformly mixed.

[0070] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A device for quantitative dilution of radioactive solutions, comprising a housing (1), characterized in that: A sealing top cover (12) is fixedly installed on the top of the outer shell (1), and a bracket (2) is fixedly installed on the sealing top cover (12). A first plunger pump (3) and a second plunger pump (7) are fixedly installed at both ends of the bracket (2). The input end of the first plunger pump (3) is fixedly connected to a radioactive solution inlet (4), and the input end of the second plunger pump (7) is fixedly connected to a dilution solution inlet (8). The output ends of the first plunger pump (3) and the second plunger pump (7) are both connected to a pipe (5). The pipe (5) extends into the interior of the shell (1) and its outlet end is located above the mixing and stirring area inside the shell (1). A vertically arranged rotating shaft (10) is rotatably connected to the sealing top cover (12), and a gear box (9) is fixedly installed on the sealing top cover (12) at the position corresponding to the rotating shaft (10). A gear set (11) is rotatably connected inside the gear box (9). The gear set (11) includes a driving gear and a driven gear that mesh with each other. The driven gear is fixedly installed on the upper end of the rotating shaft (10). A servo motor (6) is fixedly installed on the top of the gearbox (9). The driving gear is fixedly installed on the output shaft of the servo motor (6). Two layers of stirring paddles (18) are fixedly installed on the rotating shaft (10) inside the outer shell (1), a base (15) is fixedly installed at the bottom of the outer shell (1), an outlet pipe (13) is fixedly installed on the lower side of the outer shell (1), and a valve (14) is fixedly installed on the outlet pipe (13). A level gauge (16) is fixedly installed through the other side wall of the outer casing (1). The detection end of the level gauge (16) is connected to the internal cavity of the outer casing (1). An emergency stop button (17) is fixedly installed on the sealed top cover (12) near the operator.

2. The radioactive solution quantitative dilution device according to claim 1, characterized in that: The first plunger pump (3) and the second plunger pump (7) are symmetrically distributed along the central axis of the support (2).

3. The radioactive solution quantitative dilution device according to claim 2, characterized in that: The outlet end of the pipe (5) is located directly above the two layers of mixing paddles (18).

4. The radioactive solution quantitative dilution device according to claim 3, characterized in that: The gearbox (9) is coaxially arranged with the rotating shaft (10), and the bottom of the gearbox (9) is sealed to the sealing top cover (12).

5. The radioactive solution quantitative dilution device according to claim 4, characterized in that: The two layers of agitator (18) are equally spaced along the axis of rotation (10), and each layer of agitator (18) includes at least two symmetrically arranged blades.

6. The radioactive solution quantitative dilution device according to claim 5, characterized in that: The level gauge (16) penetrates vertically through the side wall of the housing (1), and the detection end of the level gauge (16) extends to the bottom area inside the housing (1).

7. The radioactive solution quantitative dilution device according to claim 6, characterized in that: The installation height of the emergency stop button (17) is adapted to the height of the operator's hand when standing, and the button surface is provided with anti-slip protrusions.

8. The radioactive solution quantitative dilution device according to claim 7, characterized in that: The connection between the sealing top cover (12) and the outer shell (1) is provided with an annular sealing gasket, which is made of radiation-resistant fluororubber.

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