Water evaporation device and control method

Abstract

The invention discloses a water evaporation device and a control method, and relates to the technical field of water measurement. The water evaporation device is used for measuring total alpha and total beta radioactivity and comprises a shell, a first vessel, a microwave evaporation part and a temperature measuring part, an evaporation cavity is formed in the shell, the first vessel is placed in the evaporation cavity and used for containing a to-be-measured water body, and the microwave evaporation part is placed in the evaporation cavity and used for heating the to-be-measured water body so that the to-be-measured water body can be evaporated and concentrated; the temperature measuring piece is arranged on the shell and used for measuring the heating temperature of the microwave evaporation piece on the water body to be measured. By applying the water body evaporation device disclosed by the invention, the technical problems that the evaporation speed of total alpha and total beta radionuclides in the water body is low, the concentration time is long, and the enrichment consistency is poor due to different technical levels of measurement personnel can be effectively solved.

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 evaporation device and a control method. Background Art

[0002] With the development and peaceful use of nuclear energy, the amount of waste water in the production process has increased, and the threat to environmental water bodies has continued to rise. The radioactivity content in environmental water bodies is generally low, and is generally unable to be directly measured due to the constraints of measuring instruments. It is necessary to first evaporate a certain volume of water and then measure the total alpha and beta radioactivity of the residue after drying.

[0003] In the related technology, electric heating plates are used to evaporate and concentrate water bodies. However, the evaporation rate of total alpha and beta radionuclides is slow, the concentration time is long, and the different technical levels of the measurement personnel lead to cross-enrichment consistency. Summary of the invention

[0004] The present application provides a water evaporation device and a control method, which can effectively solve the technical problems of slow evaporation rate of total alpha and beta radionuclides in water, long concentration time, and poor enrichment consistency due to different technical levels of measurement personnel.

[0005] In a first aspect, the present application provides a water evaporation device for measuring the total alpha and total beta radioactivity of a water body, comprising: a shell, a first vessel, a microwave evaporation element and a temperature measuring element, wherein the shell forms an evaporation chamber; the first vessel is placed in the evaporation chamber for placing the water body to be measured; the microwave evaporation element is placed in the evaporation chamber for heating the water body to be measured so that the water body to be measured evaporates and concentrates; the temperature measuring element is arranged on the shell for measuring the heating temperature of the water body to be measured by the microwave evaporation element.

[0006] The water evaporation device provided by the present application adopts microwave heating technology, and utilizes the advantages of microwave energy being controllable and having no thermal inertia, by placing a temperature measuring component on the shell, the temperature measuring component can measure the heating temperature of the water body to be tested by the microwave evaporation component, and the linkage between the temperature measuring component and the microwave evaporation component can accurately control the evaporation and concentration of the water sample to be tested in a slightly boiling state, in other words, in an optimal state, so that the evaporation rate of the total α and total β radionuclides of the water body to be tested can be accelerated and the concentration time can be shortened. At the same time, the temperature measuring component can measure the heating temperature of the water body to be tested by the microwave evaporation component, and the measurement personnel only need to use the temperature measuring component to determine whether the evaporation and concentration of the water sample to be tested is carried out in a slightly boiling state, which is less affected by the different technical levels of the measurement personnel, thereby improving the enrichment consistency of the water sample to be tested. Compared with the related art that uses electric heating plates to evaporate and concentrate water bodies, but the electric heating plates have the technical problems of slow evaporation rate of total α and total β radionuclides, long concentration time, and poor enrichment consistency due to different technical levels of measurement personnel in the process of evaporating and concentrating water bodies. The present application uses a microwave evaporator to heat the water sample to be tested to evaporate and concentrate it, and a temperature measuring component can measure the heating temperature of the water sample to be tested by the microwave evaporator. The linkage between the microwave evaporator and the temperature measuring component can effectively solve the technical problems of slow evaporation rate of total α and total β radionuclides in water bodies, long concentration time, and poor enrichment consistency due to different technical levels of measurement personnel.

[0007] In an implementable manner provided in the present application, the temperature measuring element is an infrared thermometer, which is used to emit infrared rays to measure the heating temperature of the water body to be measured by the microwave evaporation element.

[0008] In an implementable method provided in the present application, the water evaporation device also includes a transfer component, the transfer component also includes a transfer tube and a second container located outside the shell, a transfer hole is opened on the first container, one end of the transfer tube is located in the evaporation chamber and is connected to the transfer hole, and the other end of the transfer tube is adapted to the second container to transfer the water to be tested after evaporation and concentration in the first container to the second container.

[0009] In an implementable method provided in the present application, the water evaporation device also includes a cleaning component, which includes a cleaning piece at least partially located in the evaporation chamber, and a cleaning hole is opened on the portion of the cleaning piece located on the evaporation chamber. The cleaning component adds cleaning liquid to the first container through the cleaning hole to clean the first container.

[0010] In an implementable manner provided in the present application, the portion of the cleaning member located on the evaporation chamber is a spherical structure, and a plurality of cleaning holes are opened on the spherical structure, and the plurality of cleaning holes are evenly distributed on the spherical structure.

[0011] In an implementable manner provided in the present application, the water evaporation device further includes a conveying component and an ashing component. The conveying component includes a conveying member, and the conveying member is used to convey the second container containing the water to be tested after evaporation and concentration to the ashing component.

[0012] In an implementable manner provided in the present application, the conveying member is a conveying rod, which extends along the relative arrangement direction of the second container and the ashing component to push the second container containing the evaporated and concentrated water body to be tested into the ashing component.

[0013] In an implementable method provided in the present application, the first vessel includes a first vessel bottom and a first vessel wall surrounding the first vessel bottom, the transfer hole is opened at the center of the first vessel bottom, and an inclined surface is formed at a position away from the transfer hole on a side of the first vessel bottom close to the first vessel wall toward a position close to the transfer hole, so that a position away from the transfer hole on a side of the first vessel bottom close to the first vessel wall is higher than a position close to the transfer hole.

[0014] In an implementation provided in the present application, the first container is made of polytetrafluoroethylene, and the second container is made of quartz stone.

[0015] In a second aspect, the present application provides a control method for a water evaporation device provided in any one of the first aspects, comprising: in response to an instruction to concentrate a water body to be tested and a target heating temperature of the microwave evaporation element for the water body to be tested, controlling the microwave evaporation element to turn on a heating function, and controlling a temperature measuring element to measure an actual heating temperature of the microwave evaporation element; in response to an instruction that the actual heating temperature is the same as the target heating temperature, controlling the microwave evaporation element to turn off the heating function, so that the water body to be tested evaporates and concentrates at the target heating temperature.

[0016] The control method provided in the present application is the control method of the water evaporation device provided in any one of the first aspects, and therefore has the same technical effect, that is, it can effectively solve the technical problems of slow evaporation rate of total alpha and total beta radionuclides in water, long concentration time, and poor enrichment consistency due to different technical levels of measurement personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of a first water evaporation device provided in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of the structure of a second water evaporation device provided in an embodiment of the present application;

[0019] Figure 3 A schematic diagram of the structure of a third water evaporation device provided in an embodiment of the present application;

[0020] Figure 4 A schematic diagram of the structure of a first vessel provided in an embodiment of the present application;

[0021] Figure 5 This is a flow chart of a control method for a water evaporation device provided in an embodiment of the present application.

[0022] Reference numerals:

[0023] 1-shell; 11-evaporation chamber; 2-first vessel; 21-transfer hole; 22-first vessel bottom; 23-first vessel wall; 3-microwave evaporation component; 4-temperature measuring component; 5-transfer component; 51-transfer tube; 52-second vessel; 53-transfer solenoid valve; 6-cleaning component; 61-cleaning component; 611-cleaning hole; 62-cleaning motor; 63-cleaning tube; 64-cleaning solenoid valve; 65-cleaning cup; 7-transmission component; 71-transmission rod; 72-transmission drive component; 8-ashing component; 9-sampling component; 91-sampling tube; 92-sampling cup; 93-sampling peristaltic pump; 10-acid dropping component; 101-acid dropping tube; 102-acid dropping cup; 103-acid dropping solenoid valve; 110-weighing component. DETAILED DESCRIPTION

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] With the development and peaceful use of nuclear energy, the wastewater generated in the production process has increased, and the threat to environmental water bodies has continued to rise. The radioactive content in environmental water bodies is generally low, and is generally not directly measured due to the measurement constraints of measuring instruments. It is necessary to evaporate a certain volume of water sample first, and then measure the radioactivity of the total alpha and beta radionuclides in the dried residue.

[0031] The total alpha and total beta radioactivity indicators in drinking water are routine water quality detection indicators, and the detection method is "Standard Test Methods for Radioactivity Indicators of Drinking Water" (GB / T5750.13-2022).

[0032] The treatment methods for total alpha and beta radionuclides in water bodies include solvent extraction, coprecipitation, resin separation and evaporation concentration. Since the operation process of solvent extraction and coprecipitation extraction is relatively cumbersome, the measurement error is large, and the total alpha and beta radionuclides in the water body cannot be completely extracted or carried down, they are gradually replaced by evaporation concentration. The resin separation method is limited by the ion exchange rate and saturation capacity, the enrichment time is poor, and large volumes of water samples cannot be processed. Therefore, most of them use evaporation concentration methods. The main methods of evaporation concentration are atmospheric pressure evaporation and air flow evaporation. In order to ensure the recovery rate of total alpha and beta radionuclides, the atmospheric pressure evaporation method needs to control the generation of splashing, and it is determined that the water sample can only be carried out in a slightly boiling state. The air flow evaporation method is to increase the evaporation rate, and the contact area needs to be increased.

[0033] In the related technology, electric heating plates are used to evaporate and concentrate water bodies. However, the evaporation rate of total alpha and beta radionuclides is slow, the concentration time is long, and the different technical levels of the measurement personnel lead to cross-enrichment consistency.

[0034] In view of this, refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The embodiment of the present application provides a water evaporation device for measuring the total alpha and total beta radioactivity of a water body, comprising: a shell 1, a first vessel 2, a microwave evaporation element 3 and a temperature measuring element 4, wherein the shell 1 forms an evaporation chamber 11; the first vessel 2 is placed in the evaporation chamber 11 for placing the water body to be measured; the microwave evaporation element 3 is placed in the evaporation chamber 11 for heating the water body to be measured so that the water body to be measured evaporates and concentrates; the temperature measuring element 4 is arranged on the shell 1 for measuring the heating temperature of the water body to be measured by the microwave evaporation element 3.

[0035] In the embodiment of the present application, the shell 1 is formed with an evaporation chamber 11. Here, the inner contour of the evaporation chamber 11 can be a regular shape. For example, the inner contour of the evaporation chamber 11 can be a cube. For another example, the inner contour of the evaporation chamber 11 can be a rectangular parallelepiped. Of course, the inner contour of the evaporation chamber 11 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 shell 1 is formed with an evaporation chamber 11, and the first container 2 is placed in the evaporation chamber 11 for placing the water body to be tested. Here, the outer contour of the first container 2 can be a regular shape, for example, the outer contour of the first container 2 can be a cube, for example, the outer contour of the first container 2 can be a rectangular parallelepiped, of course, the outer contour of the first container 2 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, an evaporation chamber 11 is formed in the shell 1, and the first container 2 is placed in the evaporation chamber 11 for placing the water body to be tested. Here, the inner contour of the first container 2 can be a regular shape, for example, the inner contour of the first container 2 can be a cube, and for another example, the inner contour of the first container 2 can be a rectangular parallelepiped. Of course, the inner contour of the first container 2 can also be an irregular shape, which is not limited by the embodiment of the present application.

[0038] In the embodiment of the present application, an evaporation chamber 11 is formed in the housing 1, and the first container 2 is placed in the evaporation chamber 11 for placing the water body to be tested. Here, the first container 2 can be made of a material that is resistant to high temperatures and does not stick to the wall. For example, the first container 2 can be made of polytetrafluoroethylene. For another example, the first container 2 can be made of quartz stone. This is not limited in the embodiment of the present application. In one possible implementation provided in the embodiment of the present application, the first container 2 is made of polytetrafluoroethylene.

[0039] In the embodiment of the present application, the microwave evaporator 3 is placed in the evaporation chamber 11, and is used to heat the water body to be tested so that the water body to be tested evaporates and concentrates. Here, it should be explained that the microwave evaporator 3 heats the first container 2, thereby heating the water body to be tested so that the water body to be tested evaporates and concentrates.

[0040] In the embodiment of the present application, the temperature measuring element 4 is arranged on the shell 1, and is used to measure the heating temperature of the water body to be measured by the microwave evaporation element 3. Here, the method by which the temperature measuring element 4 is used to measure the heating temperature of the water body to be measured by the microwave evaporation element 3 can be a thermocouple temperature measurement method, an infrared temperature measurement method, an optical fiber temperature measurement method, or a resistance temperature measurement method, and the embodiment of the present application does not limit this.

[0041] In the embodiment of the present application, the temperature measuring element 4 is arranged on the shell 1, and is used to measure the heating temperature of the water body to be measured by the microwave evaporation element 3. Here, the temperature measuring element 4 can be arranged outside the shell 1. In other words, the temperature measuring element 4 is located outside the evaporation chamber 11, and the heating temperature is measured in a non-contact manner; of course, the temperature measuring element 4 can also be arranged inside the shell 1. In other words, the temperature measuring element 4 is located inside the evaporation chamber 11, and the heating temperature is measured in a contact manner. This embodiment of the present application is not limited to this.

[0042] The water evaporation device provided in the embodiment of the present application, because the microwave evaporation element 3 is placed in the evaporation chamber 11, the water body to be tested is heated to evaporate and concentrate the water body to be tested, and the microwave heating technology is adopted, and the advantages of microwave energy being controllable and having no thermal inertia are utilized. On this basis, by arranging the temperature measuring element 4 on the shell 1, the temperature measuring element 4 can measure the heating temperature of the water body to be tested by the microwave evaporation element 3, and the linkage of the temperature measuring element 4 and the microwave evaporation element 3 can accurately control the evaporation and concentration of the water sample to be tested in a slightly boiling state, for example, the heating temperature is 80 degrees Celsius, in other words, it is carried out in the best state, so that the evaporation rate of the total α and total β radionuclides of the water body to be tested can be accelerated and the concentration time can be shortened. At the same time, the temperature measuring element 4 can measure the heating temperature of the water body to be tested by the microwave evaporation element 3, and the measurement personnel only need to use the temperature measuring element 4 to determine whether the evaporation and concentration of the water sample to be tested is carried out in a slightly boiling state, which is less affected by the different technical levels of the measurement personnel, thereby improving the enrichment consistency of the water sample to be tested. Compared with the related art that uses an electric heating plate to evaporate and concentrate water, but the electric heating plate has the technical problems of slow evaporation rate of total α and total β radionuclides, long concentration time, and poor enrichment consistency due to different technical levels of measurement personnel in the process of evaporating and concentrating water, the present application uses a microwave evaporator 3 to heat the water sample to be tested to evaporate and concentrate it, and a temperature measuring component 4 can measure the heating temperature of the water sample to be tested by the microwave evaporator 3. The linkage between the microwave evaporator 3 and the temperature measuring component 4 can effectively solve the technical problems of slow evaporation rate of total α and total β radionuclides in water, long concentration time, and poor enrichment consistency due to different technical levels of measurement personnel.

[0043] Correspondingly, refer to Figure 5 The embodiment of the present application also provides a control method for a water evaporation device, comprising: in response to an instruction to concentrate the water body to be tested and a target heating temperature of the microwave evaporation element 3 for the water body to be tested, for example, 80 degrees Celsius, controlling the microwave evaporation element 3 to turn on the heating function, and controlling the temperature measuring element 4 to measure the actual heating temperature of the microwave evaporation element 3; in response to an instruction that the actual heating temperature is the same as the target heating temperature, controlling the microwave evaporation element 3 to turn off the heating function, so that the water body to be tested evaporates and concentrates at the target heating temperature.

[0044] In some embodiments, the water evaporation device may further include a sampling component 9, which includes a sampling tube 91, a sampling cup 92 and a sampling peristaltic pump 93. The two ends of the sampling tube 91 are respectively adapted to the sampling cup 92 and the first container 2. The sampling cup is used to place the water sample to be tested. The sampling peristaltic pump 93 can be injected in batches. The water in the sampling cup 92 first passes through the filter of the sampling peristaltic pump 93 to filter out impurities, and then drives the filtered water sample to be tested through the sampling tube 91 into the first container 2. Here, it should be supplemented that the sampling peristaltic pump 93 is a metering pump with a quantitative function. In this way, the purpose of quantitative sampling can be achieved while improving the degree of automation of the water evaporation device.

[0045] Correspondingly, an embodiment of the present application provides a control method for a water evaporation device, which responds to an instruction to concentrate the water body to be tested and a target heating temperature of the microwave evaporation element 3 for the water body to be tested, for example, 80 degrees Celsius, controls the sampling peristaltic pump 93 to filter impurities in the sampling cup 92, and then drives the filtered water sample to be tested into the first vessel 2 through the sampling tube 91, controls the microwave evaporation element 3 to turn on the heating function, and controls the temperature measuring element 4 to measure the actual heating temperature of the microwave evaporation element 3; in response to an instruction that the actual heating temperature is the same as the target heating temperature, controls the microwave evaporation element 3 to turn off the heating function, so that the water body to be tested evaporates and concentrates at the target heating temperature.

[0046] In some embodiments, the water evaporation device may further include an acid dropping component 10, the acid dropping component 10 includes an acid dropping tube 101, an acid dropping cup 102 and an acid dropping solenoid valve 103, the two ends of the acid dropping tube 101 are respectively adapted to the acid dropping cup 102 and the first container 2, the acid dropping cup 102 is used to place the acid to be dropped, and the acid dropping solenoid valve 103 is used to drive the acid to be dropped in the acid dropping cup 102 into the first container 2, so that when the water sample to be tested in the first container 2 is transferred, the degree to which the water sample to be tested hangs on the first container 2 can be reduced.

[0047] Correspondingly, an embodiment of the present application provides a control method for a water evaporation device, which responds to an instruction to concentrate the water body to be tested and a target heating temperature of the microwave evaporation element 3 for the water body to be tested, for example, 80 degrees Celsius, controls the sampling peristaltic pump 93 to filter impurities in the sampling cup 92, and then drives the filtered water sample to be tested into the first vessel 2 through the sampling tube 91. At the same time, the solenoid valve is controlled to drive the acid to be dripped in the acid dripping cup 102 into the first vessel 2, controls the microwave evaporation element 3 to turn on the heating function, and controls the temperature measuring element 4 to measure the actual heating temperature of the microwave evaporation element 3; in response to an instruction that the actual heating temperature is the same as the target heating temperature, controls the microwave evaporation element 3 to turn off the heating function, so that the water body to be tested evaporates and concentrates at the target heating temperature.

[0048] In some embodiments, the water evaporation device may further include an exhaust gas treatment component, which includes an exhaust gas pipe and an exhaust gas treatment component. One end of the exhaust gas pipe is located in the evaporation chamber 11, and the other end is located in the exhaust gas treatment equipment. The exhaust gas treatment component is used to treat the exhaust gas in the evaporation chamber 11. In this way, the safety of the water evaporation device can be improved.

[0049] Correspondingly, in response to the instruction to concentrate the water body to be tested and the target heating temperature of the water body to be tested by the microwave evaporation element 3, for example 80 degrees Celsius, the microwave evaporation element 3 is controlled to turn on the heating function, and the temperature measuring element 4 is controlled to measure the actual heating temperature of the microwave evaporation element 3; in response to the instruction that the actual heating temperature is the same as the target heating temperature, the microwave evaporation element 3 is controlled to turn off the heating function so that the water body to be tested evaporates and concentrates at the target heating temperature, and at the same time, the exhaust gas disposal element is controlled to process the exhaust gas in the evaporation chamber 11.

[0050] In an achievable method provided in an embodiment of the present application, the water evaporation device of the present application is used to evaporate and concentrate 2 liters of the water sample to be tested to 50 milliliters within three hours. Since the microwave evaporator 3 can accurately control the temperature, the water sample to be tested is slightly boiled, there is no sample splashing, and the multiple sample transfer links are reduced.

[0051] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The embodiment of the present application provides a water evaporation device, wherein the temperature measuring component 4 is an infrared thermometer, which is used to emit infrared rays to measure the heating temperature of the water body to be measured by the microwave evaporation component 3.

[0052] The water evaporation device provided in the embodiment of the present application measures the heating temperature of the water body to be measured by the microwave evaporation element 3 by setting the temperature measuring element 4 to emit infrared rays, and adopts a non-contact temperature measurement method. There is no need to consider the installation position of the temperature measuring element 4, the installation is more convenient, and the measurement is more accurate.

[0053] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 , an embodiment of the present application provides a water evaporation device, which also includes a transfer component 5, the transfer component 5 also includes a transfer tube 51 and a second container 52 located outside the shell 1, a transfer hole 21 is opened on the first container 2, one end of the transfer tube 51 is located in the evaporation chamber 11 and is connected to the transfer hole 21, and the other end of the transfer tube 51 is adapted to the second container 52 to transfer the water to be tested after evaporation and concentration in the first container 2 to the second container 52.

[0054] In the embodiment of the present application, the water evaporation device further includes a transfer solenoid valve 53 , which is disposed on the transfer tube 51 and can control whether the water to be tested after evaporation and concentration in the first container 2 is transferred to the second container 52 .

[0055] In the embodiment of the present application, the outer contour of the second container 52 can be a regular shape. For example, the outer contour of the second container 52 can be a cube. For another example, the outer contour of the second container 52 can be a rectangular parallelepiped. Of course, the outer contour of the second container 52 can also be an irregular shape, which is not limited by the embodiment of the present application.

[0056] In the embodiment of the present application, the inner contour of the second container 52 can be a regular shape, for example, the inner contour of the second container 52 can be a cube, for example, the inner contour of the second container 52 can be a cuboid, of course, the inner contour of the second container 52 can also be an irregular shape, which is not limited in the embodiment of the present application. For example, when the water body to be tested in the second container 52 is ground after being ashed, the inner contour of the second container 52 can be a shape that matches the outer contour of the grinding piece, so that the water body to be tested in the second container 52 can be ground more fully after being ashed.

[0057] In the embodiment of the present application, the second container 52 can be made of a material that is resistant to high temperatures and does not stick to the wall. For example, the second container 52 can be made of polytetrafluoroethylene. For another example, the second container 52 can be made of quartz. This is not limited in the embodiment of the present application. In one possible implementation provided in the embodiment of the present application, the second container 52 is made of quartz. Specifically, the second container 52 can be a porcelain container or a crucible.

[0058] The water evaporation device provided in the embodiment of the present application can directly transfer the water to be tested after evaporation and concentration in the first container 2 to the second container 52 by setting a transfer component 5. The transfer of the water to be tested after evaporation and concentration can be completed without opening the evaporation chamber 11. In this way, the degree of automation of the water evaporation device can be improved.

[0059] Correspondingly, refer to Figure 5 The embodiment of the present application also provides a control method for a water evaporation device, comprising: in response to an instruction to concentrate the water body to be tested and a target heating temperature of the microwave evaporation element 3 for the water body to be tested, such as 80 degrees Celsius, controlling the microwave evaporation element 3 to turn on the heating function, and controlling the temperature measuring element 4 to measure the actual heating temperature of the microwave evaporation element 3; in response to an instruction that the actual heating temperature is the same as the target heating temperature, controlling the microwave evaporation element 3 to turn off the heating function so that the water body to be tested evaporates and concentrates at the target heating temperature; in response to an instruction to evaporate and concentrate the water body to be tested to a target weight (for example, to 50 ml) at the target heating temperature, controlling the transfer component 5 to transfer the evaporated and concentrated water body to be tested in the first container 2 to the second container 52.

[0060] In some embodiments, the water evaporation device may further include a weighing component 110, which may include a weight sensor. The weight sensor is used to measure the mass of the water sample to be tested in the first container 2. When the weight of the water sample to be tested is reduced to a predetermined value, the transfer component 5 may be controlled to transfer the water to be tested after evaporation and concentration in the first container 2 to the second container 52. In this way, the degree of automation of the water evaporation device may be further improved.

[0061] Correspondingly, an embodiment of the present application also provides a control method for a water evaporation device, comprising: in response to an instruction to concentrate the water body to be tested and a target heating temperature of the microwave evaporation element 3 for the water body to be tested, for example, 80 degrees Celsius, controlling the microwave evaporation element 3 to turn on the heating function, and controlling the temperature measuring element 4 to measure the actual heating temperature of the microwave evaporation element 3; in response to an instruction that the actual heating temperature is the same as the target heating temperature, controlling the microwave evaporation element 3 to turn off the heating function so that the water body to be tested evaporates and concentrates at the target heating temperature; in response to an instruction by the weighing component 110 to weigh the water body to be tested that has evaporated and concentrated to a target weight at the target heating temperature, controlling the transfer component 5 to transfer the water body to be tested that has been evaporated and concentrated in the first container 2 to the second container 52.

[0062] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 An embodiment of the present application provides a water evaporation device, which also includes a cleaning component 6, which includes a cleaning piece 61 at least partially located in the evaporation chamber 11, and a cleaning hole 611 is opened on the portion of the cleaning piece 61 located on the evaporation chamber 11. The cleaning component 6 adds cleaning liquid to the first container 2 through the cleaning hole 611 to clean the first container 2.

[0063] In the embodiment of the present application, the cleaning component 6 adds cleaning liquid into the first container 2 through the cleaning hole 611 to clean the first container 2. Here, the cleaning liquid should be a liquid that does not affect the measurement of total alpha and total beta radionuclides in the water body. In an implementable manner provided in the embodiment of the present application, the cleaning liquid is deionized water.

[0064] The water evaporation device provided in the embodiment of the present application is provided with a cleaning component 6, so that the cleaning component 6 adds cleaning liquid into the first container 2 through the cleaning hole 611 to clean the first container 2. In this way, the accuracy of measurement can be improved, and at the same time, the degree of automation of the water evaporation device can be improved.

[0065] Correspondingly, refer to Figure 5The embodiment of the present application also provides a control method for a water evaporation device, comprising: in response to an instruction to concentrate the water body to be tested and a target heating temperature of the microwave evaporation element 3 for the water body to be tested, such as 80 degrees Celsius, controlling the microwave evaporation element 3 to turn on the heating function, and controlling the temperature measuring element 4 to measure the actual heating temperature of the microwave evaporation element 3; in response to an instruction that the actual heating temperature is the same as the target heating temperature, controlling the microwave evaporation element 3 to turn off the heating function, so that the water body to be tested evaporates and concentrates at the target heating temperature; in response to an instruction that the water body to be tested evaporates and concentrates to a target weight at the target heating temperature (for example, reaches 50 ml), controlling the transfer component 5 to transfer the evaporated and concentrated water body to be tested in the first container 2 to the second container 52; in response to an instruction that the transfer component 5 successfully transfers the evaporated and concentrated water body to be tested in the first container 2 to the second container 52, controlling the cleaning component 6 to add cleaning liquid to the first container 2 through the cleaning hole 611 to clean the first container 2, and controlling the cleaning liquid in the first container 2 to be transferred to the second container 52.

[0066] In some embodiments, the cleaning component 6 also includes a cleaning tube 63, a cleaning solenoid valve 64 and a cleaning cup 65. The two ends of the cleaning tube 63 are respectively adapted to the cleaning cup 65 and the first container 2. Cleaning liquid is provided in the cleaning cup 65. The cleaning solenoid valve 64 is used to drive the cleaning liquid in the cleaning cup 65 into the first container 2.

[0067] Correspondingly, the embodiment of the present application further provides a control method for a water evaporation device, comprising: in response to an instruction for concentrating the water body to be tested and the target heating temperature of the microwave evaporation element 3 for the water body to be tested, for example, 80 degrees Celsius, controlling the microwave evaporation element 3 to turn on the heating function, and controlling the temperature measuring element 4 to measure the actual heating temperature of the microwave evaporation element 3; in response to an instruction that the actual heating temperature is the same as the target heating temperature, controlling the microwave evaporation element 3 to turn off the heating function, so that the water body to be tested evaporates and concentrates at the target heating temperature; in response to the water body to be tested evaporating and concentrating at the target heating temperature, In response to an instruction to reach the target weight (for example, reaching 50 ml), the transfer component 5 is controlled to transfer the water body to be tested after evaporation and concentration in the first container 2 to the second container 52; in response to an instruction that the transfer component 5 successfully transfers the water body to be tested after evaporation and concentration in the first container 2 to the second container 52, the cleaning solenoid valve 64 is controlled so that the cleaning solenoid valve 64 drives the cleaning liquid in the cleaning cup 65 to enter the first container 2 through the cleaning hole 611 to clean the first container 2, and controls the cleaning liquid in the first container 2 to be transferred to the second container 52.

[0068] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4The embodiment of the present application provides a water evaporation device, wherein the cleaning member 61 located on the evaporation chamber 11 is a spherical structure, and a plurality of cleaning holes 611 are opened on the spherical structure, and the plurality of cleaning holes 611 are evenly distributed on the spherical structure.

[0069] The water evaporation device provided in the embodiment of the present application is configured such that the cleaning member 61 located on the evaporation chamber 11 is partially configured as a spherical structure, and a plurality of cleaning holes 611 are opened on the spherical structure. The plurality of cleaning holes 611 are evenly distributed on the spherical structure. Thus, the cleaning rate of the first vessel 2 can be accelerated.

[0070] In some embodiments, the cleaning component 6 also includes a cleaning motor 62, which can distribute the cleaning liquid evenly inside the spherical structure by forward and reverse rotation, so that each cleaning hole 611 can flow out the cleaning liquid, thereby speeding up the cleaning rate of the first container 2.

[0071] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The embodiment of the present application provides a water evaporation device, which also includes a conveying component 7 and an ashing component 8. The conveying component 7 includes a conveying member, which is used to convey a second container 52 containing the evaporated and concentrated water to be tested to the ashing component 8.

[0072] In the embodiment of the present application, the conveying member is used to convey the second container 52 containing the water body to be tested after evaporation and concentration to the ashing component 8. Here, the conveying member can be a conveying rod 71, which pushes the second container 52 containing the water body to be tested after evaporation and concentration to be conveyed to the ashing component 8; the conveying member can be a conveyor belt, which drives the second container 52 containing the water body to be tested after evaporation and concentration to be conveyed to the ashing component 8. This embodiment of the present application is not limited to this.

[0073] In the embodiment of the present application, the conveying component 7 further includes a conveying driving component 72, which can be connected to the conveying component, and the conveying driving component 72 is used to provide the conveying component with a driving force to convey the second container 52 containing the evaporated and concentrated water body to the ashing component 8. In an implementable manner provided in the embodiment of the present application, the conveying driving component 72 is a conveying motor.

[0074] In the embodiment of the present application, the ashing component 8 may be a muffle furnace ashing component 8. In addition, the ashing component 8 may also be other types of ashing components 8, which is not limited by the embodiment of the present application.

[0075] The water evaporation device provided in the embodiment of the present application is provided with a conveying component 7, so that the conveying component conveys the second container 52 containing the water to be measured after evaporation and concentration to the ashing component 8. In this way, there is no need for measurement personnel to convey the water themselves, so that the degree of automation of the water evaporation device can be improved.

[0076] Correspondingly, refer to Figure 5 The embodiment of the present application also provides a control method for a water evaporation device, comprising: in response to an instruction to concentrate the water body to be tested and a target heating temperature of the microwave evaporation element 3 for the water body to be tested, such as 80 degrees Celsius, controlling the microwave evaporation element 3 to turn on the heating function, and controlling the temperature measuring element 4 to measure the actual heating temperature of the microwave evaporation element 3; in response to an instruction that the actual heating temperature is the same as the target heating temperature, controlling the microwave evaporation element 3 to turn off the heating function so that the water body to be tested evaporates and concentrates at the target heating temperature; in response to an instruction that the weighing component 110 weighs the water body to be tested that evaporates and concentrates to a target weight at the target heating temperature, controlling the transfer component 5 to transfer the evaporated and concentrated water body to be tested in the first container 2 to the second container 52; in response to an instruction that the transfer component 5 successfully transfers the evaporated and concentrated water body to be tested in the first container 2 to the second container 52, controlling the conveying component to convey the second container 52 with the evaporated and concentrated water body to be tested to the ashing component 8.

[0077] The embodiment of the present application provides a water evaporation device, wherein the conveying member is a conveying rod 71 , which extends along the relative arrangement direction of the second container 52 and the ashing component 8 to push the second container 52 containing the evaporated and concentrated water to be tested into the ashing component 8 .

[0078] The water evaporation device provided in the embodiment of the present application can push the second container 52 containing the evaporated and concentrated water to be tested into the ashing component 8 by setting the conveying member as the conveying rod 71, and has technical effects such as simple structure and easy implementation.

[0079] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 , an embodiment of the present application provides a water evaporation device, the first vessel 2 includes a first vessel bottom 22 and a first vessel wall 23 surrounding the first vessel bottom 22, the transfer hole 21 is opened at the center of the first vessel bottom 22, and a position on the side of the first vessel bottom 22 close to the first vessel wall 23, away from the transfer hole 21, forms an inclined surface toward the position close to the transfer hole 21, so that the position on the side of the first vessel bottom 22 close to the first vessel wall 23, away from the transfer hole 21 is higher than the position close to the transfer hole 21.

[0080] In the embodiment of the present application, the transfer hole 21 is opened at the center position of the first container bottom 22. Here, if the first container bottom 22 is circular, the center position can be the center of the circle; if the first container bottom 22 is triangular, the center position can be the intersection of the three diagonals of the triangle; if the first container bottom 22 is an irregular shape, the center position can be the center of gravity of the irregular shape. The embodiment of the present application does not limit this.

[0081] The water evaporation device provided in the embodiment of the present application sets the first vessel bottom 22 to be low at the center position and high at other positions, so that the first vessel bottom 22 forms an inclined surface from the position away from the transfer hole 21 toward the position close to the transfer hole 21. In this way, the liquid in the first vessel 2 can be quickly transferred to the second vessel 52 through the transfer hole 21, and at the same time, it is also convenient for the water sample to be tested in the first vessel 2 to be quickly evaporated and concentrated.

[0082] In an implementable manner provided in an embodiment of the present application, an operation flow of a water evaporation device is provided. Taking 2 liters of water to be tested as an example, first, the water evaporation device is started, and then the weighing component 110 is reset to ensure the accuracy of the measurement; then, the first sampling is performed, and a certain amount of water sample is injected into the first vessel 2 through the sampling peristaltic pump 93; then, the microwave evaporation component 3 is started to provide a heating temperature for the evaporation of the water to be tested. When the target heating temperature is reached, the microwave evaporation component 3 enters a heat preservation state and stops heating. At the same time, the heat dissipation component of the microwave evaporation component 3 is started to control the temperature during the evaporation process, and the dehumidification component in the microwave evaporation component 3 is started to remove moisture generated during the evaporation process. The lighting component in the microwave evaporation component 3 is also started to The evaporation chamber 11 provides lighting. When the water sample to be tested in the first container 2 reaches the target weight, the transfer component 5 is controlled to transfer the water body to be tested after evaporation and concentration in the first container 2 to the second container 52. Here, it should be supplemented that when evaporating and concentrating the water body to be tested in the first container 2, the transfer component 5 cannot transfer the water body to be tested after evaporation and concentration in the first container 2 to the second container 52. Then, a cleaning liquid is added to the first container 2 to clean the first container 2 for the next evaporation and concentration. Then, the cycle is performed. According to the divided sampling and the total processed water sample, the above steps are repeated to complete the processing of the entire water sample. Finally, the conveyor has the second container 52 after evaporation and concentration to the ashing component 8 until the ashing is completed. Before the water evaporation device is used next time, the water evaporation device is cleaned.

[0083] In an achievable method provided in the embodiment of the present application, water samples with different high, medium and low residue amounts are subjected to two concentration methods of the water evaporation device of the present application and the electric hot plate heating in the related technology to obtain solid residues, and sample sources are prepared respectively, and radioactive indicators are tested on the machine. The results show that the average relative error of the total α radioactive index determined by the water evaporation device of the present application and the two sample pretreatment methods of electric hot plate heating and concentration in the related technology is 1.5% to 3.2%; the average relative error of the total β radioactive index is 3.5% to 5.1%. It proves the reliability of the water evaporation device provided in the embodiment of the present application, which can continuously and automatically monitor the demand.

[0084] 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 evaporation device for measuring the total alpha and total beta radioactivity of water, characterized in that: include: A shell, wherein the shell forms an evaporation chamber; A first container, which is placed in the evaporation chamber and is used to hold the water body to be tested; A microwave evaporator, which is placed in the evaporation chamber and is used to heat the water body to be tested so as to evaporate and concentrate the water body to be tested; A temperature measuring component is arranged on the shell and is used to measure the heating temperature of the water body to be measured by the microwave evaporation component.

2. The water evaporation device according to claim 1, characterized in that: The temperature measuring element is an infrared thermometer, which is used to emit infrared rays to measure the heating temperature of the water body to be measured by the microwave evaporation element.

3. The water evaporation device according to claim 1, characterized in that: The water evaporation device also includes a transfer component, which also includes a transfer tube and a second container outside the shell. The first container is provided with a transfer hole, one end of the transfer tube is located in the evaporation chamber and is connected to the transfer hole, and the other end of the transfer tube is adapted to the second container to transfer the water to be tested after evaporation and concentration in the first container to the second container.

4. The water evaporation device according to claim 3, characterized in that: The water evaporation device also includes a cleaning component, which includes a cleaning piece at least partially located in the evaporation chamber, and a cleaning hole is opened on the part of the cleaning piece located on the evaporation chamber. The cleaning component adds cleaning liquid into the first container through the cleaning hole to clean the first container.

5. The water evaporation device according to claim 4, characterized in that: The portion of the cleaning member located on the evaporation chamber is a spherical structure, and a plurality of cleaning holes are opened on the spherical structure. The plurality of cleaning holes are evenly distributed on the spherical structure.

6. The water evaporation device according to claim 3, characterized in that: The water evaporation device further comprises a conveying component and an ashing component. The conveying component comprises a conveying member, and the conveying member is used to convey the second container containing the water to be tested after evaporation and concentration to the ashing component.

7. The water evaporation device according to claim 6, characterized in that: The conveying member is a conveying rod, and the conveying rod extends along the relative arrangement direction of the second container and the ashing component to push the second container containing the water body to be tested after evaporation and concentration into the ashing component.

8. The water evaporation device according to claim 3, characterized in that: The first vessel includes a first vessel bottom and the first vessel wall surrounding the first vessel bottom, the transfer hole is opened at the center of the first vessel bottom, and an inclined surface is formed on a side of the first vessel bottom close to the first vessel wall, at a position away from the transfer hole, toward a position close to the transfer hole, so that a position on a side of the first vessel bottom close to the first vessel wall, away from the transfer hole, is higher than a position close to the transfer hole.

9. The water evaporation device according to claim 3, characterized in that: The first container is made of the polytetrafluoroethylene, and the second container is made of quartz stone.

10. A control method for a water evaporation device according to any one of claims 1 to 9, characterized in that: include: In response to the instruction to concentrate the water body to be tested and the target heating temperature of the water body to be tested by the microwave evaporation element, the microwave evaporation element is controlled to start the heating function, and the temperature measuring element is controlled to measure the actual heating temperature of the microwave evaporation element; In response to an instruction that the actual heating temperature is the same as the target heating temperature, the microwave evaporation element is controlled to turn off a heating function, so that the water body to be tested evaporates and concentrates at the target heating temperature.

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