Water body total alpha and total beta radioactivity measurement sample spreading device and control method

Abstract

The invention discloses a water body total alpha and total beta radioactivity measurement sample spreading device and a control method, and relates to the technical field of water body measurement. The water body total alpha and total beta radioactivity measurement sample laying device comprises a first vessel and an oscillation part, the first vessel is used for placing a to-be-laid sample, the oscillation part comprises a base and a second vessel, the first vessel is placed on the second vessel, and the second vessel rotates and oscillates in the horizontal direction relative to the base. The to-be-laid samples in the first vessel are driven to move, so that the to-be-laid samples in the first vessel are fully laid, and the thicknesses of the to-be-laid samples in different parts in the first vessel in the vertical direction meet the same thickness condition. The total alpha and total beta radioactivity measurement sample spreading device can effectively solve the technical problem of large interference of human subjective factors during sample spreading, so that the to-be-spread sample is spread uniformly and flatly, the quality and consistency of total alpha and total beta radioactivity measurement are improved, and the sample spreading efficiency is improved. And the automation degree of the radioactive measurement sample spreading of the total alpha and the total beta of the water body is also improved.

Description

Technical Field

[0001] The present application relates to but is not limited to the field of water body measurement technology, and in particular to a water body total alpha and total beta radioactivity measurement sampling device and a control method. Background Art

[0002] The measurement of total α and total β radioactivity in environmental water (surface water, precipitation, groundwater, drinking water, wastewater) is fast and low-cost, which not only saves time, but also saves a lot of manpower and material resources. It is one of the common radioactivity analysis processes and has been widely used in environmental monitoring. Since the total α and total β radioactivity activity values ​​in environmental water bodies are low, during the measurement process, a certain volume of water samples needs to be evaporated, ground, and spread, and then the radioactivity of the dried residue needs to be measured.

[0003] In the related art, surveyors use paper clips to manually spread samples, which is greatly affected by human subjective factors, resulting in poor flatness of the samples to be spread, leading to poor quality and consistency of total alpha and total beta radioactivity measurements. Summary of the invention

[0004] The present application provides a sample laying device and control method for measuring the total alpha and total beta radioactivity of water bodies, which can effectively solve the technical problem of being greatly interfered by human subjective factors during sample laying, so that the samples to be laid are laid evenly and flatly, thereby improving the quality and consistency of the total alpha and total beta radioactivity measurement, and also improving the degree of automation of sample laying for measuring the total alpha and total beta radioactivity of water bodies.

[0005] In the first aspect, the present application provides a sample-laying device for measuring the total alpha and total beta radioactivity of a water body, comprising a first vessel and an oscillating component, wherein the first vessel is used to place the sample to be laid; the oscillating component comprises a base and a second vessel, the first vessel is placed on the second vessel, and the second vessel can rotate and oscillate in a horizontal direction relative to the base to drive the sample to be laid in the first vessel to move, so that the first vessel is fully covered and the thickness of the sample to be laid at different positions in the first vessel along the vertical direction meets the same thickness condition.

[0006] The sample-laying device for measuring the total alpha and total beta radioactivity of water bodies provided in the present application places a first vessel for placing the sample to be laid on a second vessel, and the second vessel can rotate and oscillate in a horizontal direction relative to a base, that is, it can drive the sample to be laid in the first vessel to move, so that the sample to be laid makes a circular rotation motion in the first vessel, and the sample to be laid in the first vessel fills the first vessel under the action of centrifugal force, and the samples to be laid at different positions in the first vessel meet the same thickness condition in the vertical direction, without manual sample laying. In other words, in the sample laying process, there is less interference from human subjective factors, that is, the sample to be laid can be laid evenly and flatly, the quality and consistency of the total alpha and total beta radioactivity measurement are improved, and the degree of automation of the sample laying for the total alpha and total beta radioactivity measurement of water bodies is also improved. Compared with the related art, which requires manual sample laying and is greatly interfered by human subjective factors, the present application arranges an oscillating component so that the second vessel can rotate and oscillate in the horizontal direction relative to the base, that is, it can drive the sample to be laid in the first vessel to move, so as to fill the first vessel and the thickness of the sample to be laid at different positions in the first vessel along the vertical direction meets the same thickness condition. It has the technical problem of being greatly interfered by human subjective factors during sample laying that can be effectively solved, so that the sample to be laid is laid evenly and flatly, thereby improving the quality and consistency of the total α and total β radioactivity measurement, and also improving the technical effect of the degree of automation of sample laying for the total α and total β radioactivity measurement of water bodies.

[0007] In an achievable method provided in the present application, the condition of the same thickness is that the thicknesses of the samples to be laid located at different positions in the first container along the vertical direction are all the same.

[0008] In an implementable method provided in the present application, the sample laying device for measuring total alpha and total beta radioactivity in water also includes a limiting structure, which is arranged on at least one of the second vessel and the first vessel to limit the position of the first vessel on the second vessel.

[0009] In one possible implementation provided in the present application, the limiting structure includes a limiting groove opened on the second container, the inner contour of the limiting groove is adapted to the outer contour of the first container, and the first container is placed in the limiting groove to limit the position of the first container on the second container.

[0010] In an implementable method provided in the present application, the sample-laying device for measuring total alpha and total beta radioactivity in water also includes a buffer pad, which is arranged on at least one of the inner contour of the limiting groove and the outer contour of the first vessel to buffer the oscillation amplitude of the sample to be laid in the first vessel.

[0011] In one possible implementation provided in the present application, the buffer pad is a pad-shaped structure made of silicone material.

[0012] In an implementable method provided in the present application, the sample laying device for measuring total alpha and total beta radioactivity in water also includes a position recovery component, which includes a position recovery member, and the position recovery member is used to return the second vessel to the initial position of the base.

[0013] In one implementable method provided in the present application, a position return recess is provided on the outer contour of the second vessel, and the position return member is a position return rod. The position return rod extends along the setting direction of the outer contour of the second vessel and cooperates with the position return recess to drive the second vessel to return to the initial position of the base.

[0014] In an implementable method provided in the present application, the sample-laying device for measuring the total alpha and total beta radioactivity of a water body also includes a wetting component, and the wetting component also includes a wetting pump port. After the first container is used to place the sample to be laid, the wetting component is used to add wetting liquid to the sample to be laid through the wetting pump port to wet the sample to be laid.

[0015] In a second aspect, the present application provides a control method for a sample-laying device for measuring total alpha and total beta radioactivity in a water body provided in any one of the first aspects, comprising: in response to an instruction that the thickness of samples to be laid at different positions in a first vessel along a vertical direction meets the condition that thickness is the same, placing the sample to be laid in the first vessel, and when the first vessel is placed on a second vessel, controlling the second vessel to rotate and oscillate in a horizontal direction relative to the base so that the thickness of samples to be laid at different positions in the first vessel meets the condition that thickness is the same.

[0016] The control method provided in the present application is the control method of the sample laying device for measuring the total α and total β radioactivity of water bodies provided in any one of the first aspects, and therefore has the same technical effect, that is, it can effectively solve the technical problem of being greatly interfered by human subjective factors during sample laying, so that the samples to be laid are laid evenly and flatly, thereby improving the quality and consistency of the total α and total β radioactivity measurement, and also improving the degree of automation of the sample laying for the total α and total β radioactivity measurement of water bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of a sample laying device for measuring total alpha and total beta radioactivity in water provided in an embodiment of the present application;

[0018] Figure 2 An explosion schematic diagram of a sample laying device for measuring total α and total β radioactivity in water is provided for the embodiment of the present application;

[0019] Figure 3 A top view of a sample laying device for measuring total alpha and total beta radioactivity in water provided in an embodiment of the present application;

[0020] Figure 4A schematic diagram of the structure of a first vessel, a second vessel and a buffer pad in a sample laying device for measuring total alpha and total beta radioactivity in water provided in an embodiment of the present application;

[0021] Figure 5 A schematic diagram of the structure of the wetting components in the sample laying device for measuring the total alpha and total beta radioactivity in water provided in an embodiment of the present application;

[0022] Figure 6 This is a flow chart of a control method for a sampling device for measuring total alpha and total beta radioactivity in water provided in an embodiment of the present application.

[0023] Reference numerals:

[0024] 1-first container; 2-oscillating component; 21-base; 211-control switch; 22-second container; 221-limiting groove; 3-buffer pad; 4-position recovery component; 41-position recovery member; 42-position recovery motor; 5-wetting component; 51-wetting pump port; 52-knob encoder. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the specific technical solution of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0026] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, "multiple" means two or more.

[0027] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to the changes in the orientation of the components in the drawings.

[0028] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0029] In the embodiments of the present application, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0030] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0031] The measurement of total α and total β radioactivity in environmental water (surface water, precipitation, groundwater, drinking water, wastewater) is fast and low-cost, which not only saves time, but also saves a lot of manpower and material resources. It is one of the common radioactivity analysis processes and has been widely used in environmental monitoring. The measurement of total α and total β radioactivity can preliminarily determine the pollution level of the sample; provide screening indicators for whether the sample needs to be further analyzed for nuclides; when the composition of the sample nuclides is unclear, the measurement of total radioactivity replaces the analysis of individual nuclides; the measurement results of total radioactivity are also used as the basis for radioactivity management. The Technical Specifications for Radiation Environment Monitoring (HJ / T61-2001) and the National Radiation Environment Monitoring Program (Provisional) list the total α and total β radioactivity in environmental water as monitoring items. The current monitoring standards for total alpha and total beta measurements in water include the Thick Source Method for Determination of Total Alpha Radioactivity Concentration in Water (EJ / T1075-1998), the Thick Source Method for Determination of Total Alpha Radioactivity in Water Quality (HJ 898-2017), the Evaporation Method for Determination of Total Beta Radioactivity in Water (EJ / T 900-1994), the Thick Source Method for Determination of Total Beta Radioactivity in Water Quality (HJ899-2017) and the Standard Test Methods for Radioactivity Indicators in Drinking Water (GB / T5750.13-2006).

[0032] Since the total α and total β radioactivity values ​​in environmental water bodies are relatively low, during the measurement process, a certain volume of water samples must be evaporated, ground, and spread, and then the radioactivity of the residue after drying must be measured. In related technologies, measurement personnel use paper clips to manually spread samples, which is greatly interfered by human subjective factors, resulting in poor flatness of the spread samples, resulting in poor quality and consistency of total α and total β radioactivity measurements.

[0033] In view of this, and with reference to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 An embodiment of the present application provides a sample-laying device for measuring total alpha and total beta radioactivity in water, comprising a first vessel 1 and an oscillating component 2, wherein the first vessel 1 is used to place the sample to be laid; the oscillating component 2 comprises a base 21 and a second vessel 22, the first vessel 1 is placed on the second vessel 22, and the second vessel 22 can rotate and oscillate in a horizontal direction relative to the base 21 to drive the sample to be laid in the first vessel 1 to move, so that the first vessel 1 is fully covered and the thickness of the sample to be laid at different positions in the first vessel 1 along the vertical direction meets the same thickness condition.

[0034] In the embodiment of the present application, the sample laying method of the sample laying device for measuring the total α and total β radioactivity of water bodies can be a dry laying method or a wet laying method. In the dry laying method, no wetting liquid is added to the sample to be laid, and a slight vibration during operation can cause the sample to be laid to spread, deform, or even fall off, which is not conducive to long-term preservation, and it is easy to contaminate the probe during the measurement process, resulting in an increase in the background of the low-background α and β measuring instrument; in the wet laying method, a wetting liquid is dripped into the sample to be laid, and a slight vibration is applied during operation. The possibility of the sample to be laid spreading, deforming, or even falling off is small, which is conducive to long-term preservation, and it is not easy to contaminate the probe during the measurement process. Therefore, in an achievable method provided by the present application, the sample laying device for measuring the total α and total β radioactivity of water bodies also includes a wetting component 5, and the wetting component 5 also includes a wetting pump port 51. After the first vessel 1 is used to place the sample to be laid, the wetting component 5 is used to add a wetting liquid to the sample to be laid through the wetting pump port 51 to wet the sample to be laid. Specifically, the wetting component 5 also includes a knob encoder 52, through which the flow rate of the wetting liquid can be manually adjusted. At the same time, the display screen can be controlled by the knob encoder 52 to query the flow rate of the wetting liquid; the pipes in the wetting component 5 are heat-resistant, acid-resistant, alkali-resistant, and ozone-resistant pipes, so that the service life of the pipes of the wetting component 5 can be increased; the wetting pump port 51 of the wetting component 5 is a rotor stepper motor; at the same time, the wetting component 5 can customize the rotation speed, flow rate, and working time, and the data can be saved in the power-off state. In other words, the wetting component 5 can be powered off without losing data; the wetting component 5 also has a wireless connection function and can be remotely controlled through a mobile phone APP. Furthermore, the wetting liquid can be anhydrous ethanol (alcohol). Of course, the wetting liquid can also be other types of liquids, as long as it does not affect the total α and total β radioactivity measurement of the water body.

[0035] In the embodiment of the present application, the first container 1 is used to place the sample to be laid. Here, the inner contour of the first container 1 can be a regular shape, for example, the inner contour of the first container 1 is a cube, and for another example, the inner contour of the first container 1 is a rectangular parallelepiped; the inner contour of the first container 1 can also be an irregular shape, which is not limited by the embodiment of the present application. Similarly, the outer contour of the first container 1 can be a regular shape, for example, the inner contour of the first container 1 is a cube, and for another example, the inner contour of the first container 1 is a rectangular parallelepiped; the inner contour of the first container 1 can also be an irregular shape, which is not limited by the embodiment of the present application.

[0036] In the embodiment of the present application, the first container 1 is placed on the second container 22. Here, the inner contour of the second container 22 can be a regular shape. For example, the inner contour of the second container 22 is a cube. For another example, the inner contour of the second container 22 is a rectangular parallelepiped. The inner contour of the second container 22 can also be an irregular shape, which is not limited by the embodiment of the present application.

[0037] In the embodiment of the present application, the first container 1 is placed on the second container 22. Here, there may be a limiting relationship between the first container 1 and the second container 22, for example, a snap-on limiting relationship. Of course, there may also be no limiting relationship between the first container 1 and the second container 22, and this is not limited by the embodiment of the present application.

[0038] In the embodiment of the present application, the oscillating component 2 includes a base 21 and a second vessel 22, and the second vessel 22 can rotate and oscillate in the horizontal direction relative to the base 21. Here, the power for the second vessel 22 to rotate and oscillate in the horizontal direction relative to the base 21 can be provided by the second vessel 22 itself or by the base 21, and the embodiment of the present application does not limit this. In an implementable manner provided in the embodiment of the present application, a rotary oscillation motor is provided in the base 21, and the horizontal rotary oscillation motor drives the second vessel 22 to rotate and oscillate in the horizontal direction relative to the base 21.

[0039] In the embodiment of the present application, the oscillation component 2 includes a base 21 and a second container 22. The second container 22 can rotate and oscillate in a horizontal direction relative to the base 21. Here, the oscillation component can also include a control switch 211 arranged on the base 21. The control switch 211 can control whether the second container 22 rotates and oscillates in a horizontal direction relative to the base 21, and the speed of the rotation and oscillation in the horizontal direction, etc. In this way, the degree of automation of the sample laying device can be improved.

[0040] In the embodiment of the present application, the second vessel 22 can rotate and oscillate in the horizontal direction relative to the base 21 to drive the sample to be laid in the first vessel 1 to move, so as to fill the first vessel 1 and the thickness of the sample to be laid at different positions in the first vessel 1 along the vertical direction satisfies the same thickness condition. Here, satisfying the same thickness condition means that if the error value of the thickness of the sample to be laid at different positions in the first vessel 1 along the vertical direction is less than a preset threshold, it can be said that the same thickness condition is satisfied. For example, the thickness of the sample to be laid at the first position in the first vessel 1 along the vertical direction is 0.3 mm, the thickness of the sample to be laid at the second position in the first vessel 1 along the vertical direction is 0.26 mm, the preset threshold is 0.05 mm, and the difference in thickness between the sample to be laid at the first position in the first vessel 1 along the vertical direction and the sample to be laid at the second position in the first vessel 1 along the thickness direction is 0.04 mm, which is less than the preset threshold of 0.05 mm. Therefore, it can be said that the thickness of the sample to be laid at the first position in the first vessel 1 along the vertical direction and the thickness of the sample to be laid at the second position in the first vessel 1 along the thickness direction meet the same thickness condition. Of course, the preset threshold can also be other values, and the embodiments of the present application are not limited to this.

[0041] The sample-laying device for measuring total α and total β radioactivity of water bodies provided in the embodiment of the present application places a first vessel 1 for placing the sample to be laid on a second vessel 22, and the second vessel 22 can rotate and oscillate in the horizontal direction relative to the base 21, that is, it can drive the sample to be laid in the first vessel 1 to move, so that the sample to be laid makes a circular rotation motion in the first vessel 1, and the sample to be laid in the first vessel 1 is spread all over the first vessel 1 under the action of centrifugal force, and the samples to be laid at different positions in the first vessel 1 meet the same thickness condition in the vertical direction, without manual sample laying. In other words, in the sample laying process, it is less disturbed by human subjective factors, that is, the sample to be laid can be laid evenly and flatly, the quality and consistency of the total α and total β radioactivity measurement are improved, and the degree of automation of the sample laying for the total α and total β radioactivity measurement of water bodies is also improved. Compared with the related art, which requires manual sample laying and is greatly interfered by human subjective factors, the present application sets an oscillating component 2, and the second vessel 22 can rotate and oscillate in the horizontal direction relative to the base 21, that is, it can drive the sample to be laid in the first vessel 1 to move, so as to fill the first vessel 1 and the thickness of the samples to be laid at different positions in the first vessel 1 along the vertical direction meets the same thickness condition. It has the technical problem of being greatly interfered by human subjective factors during sample laying that can be effectively solved, so that the samples to be laid are laid evenly and flatly, thereby improving the quality and consistency of the total α and total β radioactivity measurement, and also improving the technical effect of the degree of automation of sample laying for the total α and total β radioactivity measurement of water bodies.

[0042] Specifically, the sample-laying device for measuring the total α and total β radioactivity of water bodies provided in the embodiment of the present application can achieve the following beneficial effects, and improve the measurement accuracy and efficiency: the embodiment of the present application realizes fast and uniform sample preparation through automated sample-laying technology, and its uniformity is comparable to that of experienced laboratory operators. This not only improves the accuracy and stability of the measured value, but also reduces the need for repeated production and measurement due to inconsistent sample preparation. Realize automation and unattended operation: the sample-laying device makes the oscillation and paving process of the sample source to be measured fully automated, which is crucial for the online monitoring system of the total α and total β of water bodies, realizes unattended operation in the true sense, and greatly improves the monitoring efficiency and response speed. Reduce labor intensity and operational difficulty: by reducing manual operation, the embodiment of the present application significantly reduces labor intensity, simplifies the operation process, makes sample processing more efficient, and provides a solid foundation for subsequent analysis and testing. Broad market application and prospects: the sample-laying device of the embodiment of the present application is suitable for multiple fields such as materials science, chemical analysis, geological exploration, etc. With the improvement of scientific research and industrial production on sample processing efficiency and quality requirements, the embodiment of the present application shows a broad market application prospect, meeting the needs of different industries for efficient and accurate sample processing.

[0043] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The embodiment of the present application provides a sample-laying device for measuring the total α and total β radioactivity of a water body, and the condition of the same thickness is that the thickness of the samples to be laid at different positions in the first container 1 along the vertical direction are all the same.

[0044] The sample laying device for measuring total alpha and total beta radioactivity in water bodies provided in an embodiment of the present application sets the same thickness condition so that the thickness of the samples to be laid at different positions in the first vessel 1 along the vertical direction is the same. In this way, the uniformity and flatness of the sample laying can be further improved, thereby improving the quality and consistency of the total alpha and total beta radioactivity measurement, and also improving the technical effect of the degree of automation of the sample laying for measuring total alpha and total beta radioactivity in water bodies.

[0045] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 An embodiment of the present application provides a sample-laying device for measuring the total alpha and total beta radioactivity of a water body. The sample-laying device for measuring the total alpha and total beta radioactivity of a water body also includes a limiting structure, which is arranged on at least one of the second container 22 and the first container 1 to limit the position of the first container 1 on the second container 22.

[0046] In an embodiment of the present application, a limiting structure is provided on at least one of the second container 22 and the first container 1 to limit the position of the first container 1 on the second container 22. Here, the limiting structure can be provided only on the second container 22; the limiting structure can be provided only on the first container 1; the limiting structure can be provided on both the second container 22 and the first container 1 at the same time, and the embodiment of the present application does not impose any limitation on this.

[0047] In the embodiment of the present application, a limiting structure is arranged on at least one of the second container 22 and the first container 1 to limit the position of the first container 1 on the second container 22. Here, the limiting structure limits the position of the first container 1 on the second container 22 by a snap-on limiting method, a screw-on limiting method, or a glue-on limiting method, and the embodiment of the present application does not impose any limitation on this.

[0048] The sample-laying device for measuring the total alpha and total beta radioactivity of a water body provided in an embodiment of the present application sets a limiting structure on at least one of the second vessel 22 and the first vessel 1 to limit the position of the first vessel 1 on the second vessel 22. When the second vessel 22 can rotate and oscillate in a horizontal direction relative to the base 21, the possibility of the first vessel 1 moving on the second vessel 22 can be reduced.

[0049] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 An embodiment of the present application provides a sample laying device for measuring the total alpha and total beta radioactivity of a water body. The limiting structure includes a limiting groove 221 opened on a second container 22. The inner contour of the limiting groove 221 is adapted to the outer contour of the first container 1. The first container 1 is placed in the limiting groove 221 to limit the position of the first container 1 on the second container 22.

[0050] In the embodiment of the present application, the inner contour of the limiting groove 221 is adapted to the outer contour of the first container 1. Here, if the inner contour of the limiting groove 221 is a regular shape (cylinder), the outer contour of the first container 1 should also be a regular shape (cylinder); if the inner contour of the limiting groove 221 is an irregular shape, the outer contour of the first container 1 should also be an irregular shape. The embodiment of the present application does not limit this.

[0051] The sample laying device for measuring the total alpha and total beta radioactivity of a water body provided in an embodiment of the present application sets a limiting structure as a limiting groove 221 on the second vessel 22, so that the inner contour of the limiting groove 221 is adapted to the outer contour of the first vessel 1, that is, the position of the first vessel 1 on the second vessel 22 can be limited, and the device has technical effects such as simple structure and easy implementation.

[0052] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 An embodiment of the present application provides a sample-laying device for measuring the total alpha and total beta radioactivity of a water body. The sample-laying device for measuring the total alpha and total beta radioactivity of a water body also includes a buffer pad 3, which is arranged on at least one of the inner contour of the limiting groove 221 and the outer contour of the first vessel 1 to buffer the oscillation amplitude of the sample to be laid in the first vessel 1.

[0053] In the embodiment of the present application, the buffer pad 3 can be a pad-like structure made of rubber material, the buffer pad 3 can also be a pad-like structure made of silicone material, or the buffer pad 3 can also be a pad-like structure made of a spring paddle, and the embodiment of the present application does not limit this.

[0054] In an embodiment of the present application, the buffer pad 3 is arranged on at least one of the inner contour of the limiting groove 221 and the outer contour of the first vessel 1. Here, the buffer pad 3 can be arranged only on the inner contour of the limiting groove 221; the buffer pad 3 can be arranged only on the outer contour of the first vessel 1; the buffer pad 3 can also be arranged on the inner contour of the limiting groove 221 and the outer contour of the first vessel 1 at the same time, and this embodiment of the present application is not limited to this.

[0055] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 An embodiment of the present application provides a sample-laying device for measuring the total alpha and total beta radioactivity of a water body. The sample-laying device for measuring the total alpha and total beta radioactivity of a water body also includes a position recovery component 4. The position recovery component 4 includes a position recovery member 41. The position recovery member 41 is used to restore the second vessel 22 to the initial position of the base 21.

[0056] In the embodiment of the present application, the position return member 41 is used to return the second container 22 to the initial position of the base 21. Here, the force used by the position return member 41 to return the second container 22 to the initial position of the base 21 can be provided by an additional position return motor 42 or by the position return component 4 itself. In this regard, in the embodiment of the present application, the position return component 4 also includes a position return motor 42, which is connected to the position return member 41 and is used to drive the position return member 41 so that the second device returns to the initial position of the base 21.

[0057] In the embodiment of the present application, the position return member 41 can be a position return rod, which extends along the setting direction of the position return rod and the outer contour of the second container 22, and cooperates with the position return recess to drive the second container 22 to return to the initial position of the base 21; the position return member 41 can be a position return spring, which is connected to the outer contour of the second container 22, and the elastic force of the position return spring provides an elastic force for returning the second container 22 to the initial position of the base 21.

[0058] The sample laying device for measuring total alpha and total beta radioactivity in water provided in the embodiment of the present application is provided with a position recovery component 4, so that the position recovery member 41 in the position recovery component 4 is used to restore the second container 22 to the initial position of the base 21 for the next use.

[0059] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 An embodiment of the present application provides a sample laying device for measuring the total alpha and total beta radioactivity of a water body. A position return recess is provided on the outer contour of the second vessel 22. The position return member 41 is a position return rod. The position return rod extends along the setting direction of the outer contour of the second vessel 22 and cooperates with the position return recess to drive the second vessel 22 to return to the initial position of the base 21.

[0060] In the embodiment of the present application, the position return rod extends along the setting direction of the outer contour of the second container 22 and cooperates with the position return recess. Here, the position return rod can have an interference fit with the position return recess to pull the second container 22 back to the initial position of the base 21; here, the position return rod can have a transition fit with the position return recess to push the second container 22 back to the initial position of the base 21. The embodiment of the present application does not limit this.

[0061] The sample laying device for measuring the total alpha and total beta radioactivity of a water body provided in the embodiment of the present application, by setting the position return member 41 as a position return rod, and the position return rod is extended along the setting direction of the outer contour of the second container 22, and cooperates with the position return recess, so that the second container 22 can be driven to return to the initial position of the base 21, and has technical effects such as simple structure and easy implementation.

[0062] Reference Figure 6The embodiment of the present application also provides a control method for the sample-laying device for measuring the total alpha and total beta radioactivity of a water body provided in the embodiment of the present application, comprising: in response to an instruction that the thickness of the sample to be laid at different positions in the first vessel 1 along the vertical direction satisfies the condition of the same thickness, when the sample to be laid is placed in the first vessel 1 and the first vessel 1 is placed on the second vessel 22, the second vessel 22 is controlled to rotate and oscillate in the horizontal direction relative to the base 21, so that the thickness of the sample to be laid at different positions in the first vessel 1 satisfies the condition of the same thickness.

[0063] The embodiment of the present application also provides a control method for the sample-spreading device for measuring the total α and total β radioactivity of a water body provided in the embodiment of the present application. First, a first vessel 1 of a weighed sample to be spread is placed in a limiting groove 221 of a second vessel 22 of an oscillating component 2 by a robotic arm and fixed; then, the sample to be spread is moistened, the moistening component 5 is turned on, and then, a proper amount of anhydrous ethanol is added to the weighed sample to be spread through the moistening pump port 51 (the speed and amount of alcohol addition are determined experimentally) to facilitate full dissolution and dispersion of the weighed sample to be spread; then, the sample is evenly spread, the oscillating component 2 is turned on, and the second vessel 22 can rotate horizontally relative to the base 21. Rotational oscillation can drive the sample to be laid in the first vessel 1 to move, so that the sample to be laid makes a circular motion in the first vessel 1, and the sample to be laid in the first vessel 1 is spread all over the first vessel 1 under the action of centrifugal force, and the samples to be laid at different positions in the first vessel 1 meet the same thickness condition in the vertical direction; then, after the oscillation ends, the position recovery member 41 is used to return the second vessel 22 to the initial position of the base 21, so as to facilitate the next positioning and grasping of the robot arm; finally, the sample to be laid on the first vessel 1 is dried, and the robot arm sends the evenly spread first vessel 1 to be dried to obtain a sample source to be detected by the low background αβ measuring instrument. Through the above steps, a uniform sample source can be prepared, which improves the counting accuracy and detection efficiency of the detection equipment.

[0064] The serial numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments. The above are only preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A water body total α and total β radioactivity measurement device, characterized in that: include: A first container, the first container is used to place the sample to be plated; An oscillating component comprises a base and a second vessel, wherein the first vessel is placed on the second vessel, and the second vessel can rotate and oscillate in a horizontal direction relative to the base to drive the sample to be spread in the first vessel to move, so that the first vessel is fully spread and the thickness of the sample to be spread at different positions in the first vessel along the vertical direction meets the same thickness condition.

2. The water body total α and total β radioactivity measurement sample laying device according to claim 1, characterized in that: The same thickness condition is that the thicknesses of the samples to be laid located at different positions in the first container along the vertical direction are all the same.

3. The water body total α and total β radioactivity measurement sample laying device according to claim 1, characterized in that: The sample-laying device for measuring total alpha and total beta radioactivity in water also includes a limiting structure, which is arranged on at least one of the second container and the first container to limit the position of the first container on the second container.

4. The device for measuring total α and total β radioactivity in water according to claim 3, characterized in that: The limiting structure includes a limiting groove opened on the second container, the inner contour of the limiting groove is adapted to the outer contour of the first container, and the first container is placed in the limiting groove to limit the position of the first container on the second container.

5. The water body total α and total β radioactivity measurement sample laying device according to claim 4, characterized in that: The sample-laying device for measuring total alpha and total beta radioactivity in water also includes a buffer pad, which is arranged on at least one of the inner contour of the limiting groove and the outer contour of the first vessel to buffer the oscillation amplitude of the sample to be laid in the first vessel.

6. The device for measuring total α and total β radioactivity in water according to claim 5, characterized in that: The buffer pad is a pad-shaped structure made of silica gel material.

7. The device for measuring total α and total β radioactivity in water according to claim 1, characterized in that: The sample laying device for measuring total alpha and total beta radioactivity in water also includes a position recovery component, which includes a position recovery member, and the position recovery member is used to restore the second container to the initial position of the base.

8. The device for measuring total α and total β radioactivity in water according to claim 1, characterized in that: A position return recess is provided on the outer contour of the second container, and the position return member is a position return rod. The position return rod extends along the setting direction of the outer contour of the second container and cooperates with the position return recess to drive the second container to return to the initial position of the base.

9. The device for measuring total α and total β radioactivity in water according to any one of claims 1 to 8, characterized in that: The sample-laying device for measuring total alpha and total beta radioactivity in water also includes a wetting component, and the wetting component also includes a wetting pump port. When the first container is used to place the sample to be laid, the wetting component is used to add wetting liquid to the sample to be laid through the wetting pump port to wet the sample to be laid.

10. A method for controlling a water body total α and total β radioactivity measurement sample laying device according to any one of claims 1 to 9, characterized in that: include: In response to an instruction that the thickness of the sample to be laid at different positions in the first vessel along the vertical direction meets the condition of the same thickness, the sample to be laid is placed in the first vessel, and when the first vessel is placed on the second vessel, the second vessel is controlled to rotate and oscillate in the horizontal direction relative to the base, so that the thickness of the sample to be laid at different positions in the first vessel meets the condition of the same thickness.

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