CN212008214U - A Radon Diffusion Coefficient Measuring Device - Google Patents

Abstract

The present application discloses a radon diffusion coefficient measuring device, which can use a paint layer module to fix the paint to be tested, so that the inside of the radon source container shell and the inside of the radon collection cover are connected through the paint layer to be tested, so that the radon source test piece is released The radon gas diffuses into the radon collecting hood through the coating layer to be tested, and the radon gas concentration in the radon collecting hood is measured by the closed cavity method with a radon measuring instrument. Measurement of the radon resistance of coatings. In addition, the inner side of the radon source container shell is provided with a heating plate and a thermal insulation board, on the one hand, the internal temperature of the radon source container shell can be kept constant, and the interference of temperature changes on the measurement results can be avoided; on the other hand, the temperature inside the radon source container shell can be adjusted. , to detect the effect of temperature on radon diffusion coefficient or radon release rate from radon source specimens. Finally, the thickness of the paint layer to be tested in the paint layer module can be changed to detect the influence of the paint thickness on the measurement results.

Description

A Radon Diffusion Coefficient Measuring Device

technical field

The present application relates to the technical field of gas concentration measurement, in particular to a device for measuring the diffusion coefficient of radon.

Background technique

In life, the main natural radioactive sources that endanger human health are radon and radon progeny. Radon is a great threat to human health, has strong carcinogenicity, and has a wide range of pollution sources, such as soil, rock mass, groundwater, building materials, etc. Among them, the main sources closely related to human life are indoor walls, foundations, and building materials. Released radon.

At present, fly ash is widely used as a building material at home and abroad, which is closely related to our daily life. However, raw coal contains various natural radionuclides such as 226Ra, 230Th, 40K, 238U, etc. There is also enrichment, resulting in potential radon pollution in most building materials.

Therefore, the radiation protection of radon has been highly valued by the governments of various countries. Many scientific research institutions and scholars at home and abroad have carried out the investigation of environmental radon and the systematic research on the precipitation mechanism. Studies have shown that the radon released by natural radon sources such as indoor walls and infrastructure materials has the characteristics of low concentration, high hazard, and long-term nature, which causes internal exposure to the human body and produces long-term hazards. Therefore, the development of anti-radon coatings and The detection and research of anti-radon performance is imminent.

To sum up, how to provide a device for detecting radon performance of an anti-radon coating is an urgent problem to be solved by those skilled in the art.

Utility model content

The purpose of this application is to provide a radon diffusion coefficient measuring device to solve the problem that the detection process is difficult to carry out due to the lack of a device for testing the performance of anti-radon coatings currently.

In order to solve the above-mentioned technical problems, the application provides a measuring device for radon diffusion coefficient, including:

A radon source container shell for storing radon source test pieces, the radon source container shell is provided with an opening;

an insulating plate arranged on the inner side of the radon source container shell;

a heating plate arranged on the inner side of the heat insulating plate;

a paint layer module sealingly connected to the opening of the radon source container shell, the paint layer module has a hollow structure, and the hollow structure is used for fixing the paint to be tested;

a radon collecting cover sealed with the paint layer module;

a radon gas input pipe and a radon gas output pipe arranged on the radon collecting cover;

A radon meter connected with the radon gas input pipe and the radon gas output pipe.

Preferably, it also includes:

One end is connected with the radon gas input pipe, and the other end is connected with the radon tester, and the radon gas input pipe is connected with the radon tester through the dryer.

Preferably, the radon tester is a RAD-7 radon tester.

Preferably, the shape of the hollow structure of the paint layer module is the same as the shape of the opening of the shell of the radon source container.

Preferably, the paint layer module is an annular paint layer standard ring.

Preferred include:

Multiple paint layer modules of different thicknesses.

Preferably, it also includes:

Fixing screws, air-tight pads, and fixing bolts; the fixing screws, the air-tight pads and the fixing bolts are used to realize the sealed connection between the shell of the radon source container and the paint layer module, and realize the A sealed connection between the paint layer module and the radon collection cover.

Preferably, the radon source container shell is provided with a first opening and a second opening; correspondingly, the measuring device for the radon diffusion coefficient includes:

A first paint layer module and a second paint layer module sealed with the first opening and the second opening of the radon source container shell, the first paint layer module and the second paint layer module have a hollow structure , the hollow structure is used to fix the paint to be tested;

a first radon collecting cover sealed with the first paint layer module, and a second radon collecting cover sealed with the second paint layer module;

The first radon gas input pipe and the first radon gas output pipe are arranged on the first radon collecting cover, and the second radon gas input pipe and the second radon gas output pipe are arranged on the second radon collecting cover;

The first radon meter connected with the first radon gas input pipe and the first radon gas output pipe, the second radon detector connected with the second radon gas input pipe and the second radon gas output pipe Radon meter.

Preferably, the first opening and the second opening of the radon source container shell are disposed opposite to each other.

A device for measuring radon diffusion coefficient provided by the present application includes a radon source container shell, a coating layer module, a radon collection cover, and a radon measuring instrument, wherein the coating layer module is sealed and connected to the opening of the radon source container shell, and the coating layer The module is sealed and connected to the radon collecting cover; the inner side of the radon source container shell is sequentially provided with a heat insulating plate and a heating plate, and the radon source container shell is used to store the radon source test piece; the coating layer module has a hollow structure, and the hollow structure is used for fixing the coating to be tested ; The collecting radon cover and the radon measuring instrument are connected through the radon gas input pipe and the radon gas output pipe.

It can be seen that the measuring device of the present application can use the coating layer module to fix the coating to be tested, so that the interior of the radon source container shell and the interior of the radon collection cover are communicated through the coating layer to be tested, so that the radon gas released by the radon source test piece passes through the coating layer to be tested. The radon gas concentration in the radon collecting hood is measured by a radon measuring instrument through the closed cavity method, and the radon diffusion coefficient of the coating to be tested is calculated based on this, and the measurement of the anti-radon performance of the coating to be tested is realized. In addition, the inner side of the radon source container shell is provided with a heating plate and a thermal insulation board, on the one hand, the internal temperature of the radon source container shell can be kept constant, and the interference of temperature changes on the measurement results can be avoided; on the other hand, the temperature inside the radon source container shell can be adjusted. , to detect the effect of temperature on radon diffusion coefficient or radon release rate from radon source specimens. Finally, the thickness of the paint layer to be tested in the paint layer module can be changed to detect the influence of the paint thickness on the measurement results.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present application or the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only For some embodiments of the present application, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

1 is a schematic structural diagram of Embodiment 1 of a measuring device for radon diffusion coefficient provided by the application;

2 is a schematic structural diagram of Embodiment 2 of a device for measuring radon diffusion coefficient provided by the application;

3 is a schematic diagram of a radon source container shell in Embodiment 2 of a measuring device for radon diffusion coefficient provided by the application;

4 is a schematic diagram of a coating layer standard ring in Embodiment 2 of a measuring device for radon diffusion coefficient provided by the application;

5 is a schematic diagram of a radon collecting cover, a standard ring of a coating layer, and a radon source container shell in Embodiment 2 of a radon diffusion coefficient measuring device provided by the application.

Detailed ways

The core of the present application is to provide a radon diffusion coefficient measuring device, which can measure the radon gas concentration value by a closed cavity method, thereby calculating the radon diffusion coefficient of the coating to be tested, and realizing the measurement of the anti-radon performance of the coating to be tested.

In order to make those skilled in the art better understand the solution of the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The first embodiment of a radon diffusion coefficient measuring device provided by the present application will be introduced below. Referring to FIG. 1 , the first embodiment includes:

A radon source container shell 01 for storing the radon source test piece 00, the radon source container shell 01 is provided with an opening;

an insulating plate 02 arranged on the inner side of the radon source container shell 01;

a heating plate 03 arranged on the inner side of the heat insulating plate 02;

The paint layer module 04 sealedly connected to the opening of the radon source container shell 01, the paint layer module 04 has a hollow structure, and the hollow structure is used for fixing the paint 05 to be tested;

A radon collection cover 06 sealedly connected to the paint layer module 04;

The radon gas input pipe 07 and the radon gas output pipe 08 arranged on the radon collecting cover 06;

A radon meter 09 connected to the radon gas input pipe 07 and the radon gas output pipe 08.

The corresponding relationship between the labels in FIG. 1 and the parts of the measuring device of this embodiment is shown in Table 1:

Table 1

label Refers to 00 Radon source test piece 01 Radon source container enclosure 02 Insulation board 03 heating plate 04 Paint Layer Module 05 Paint to be tested 06 Radon shield 07 Radon gas inlet pipe 08 Radon output pipe 09 Radon meter

In this embodiment, the radon source test piece 00 refers to a solid radon source, which is stored inside the radon source container shell during the measurement process. Specifically, in order to prevent the radon source test piece 00 from colliding inside the radon source container shell 01, a radon source test piece 00 that matches the internal shape of the radon source container shell 01 can be selected, so that the radon source container shell 01 acts as a fixed radon source The role of the source specimen 00.

The inner side of the radon source container shell 01 is provided with a thermal insulation board 02, and the thermal insulation board 02 is in direct contact with the inner side of the radon source container shell 01, thereby playing the role of heat insulation and sealing, ensuring that all the radon gas released by the radon source test piece 00 is released to the collector. Radon hood 06 collection radon chamber. As for the material selection of the thermal insulation board 02 , elastic materials can be specifically used.

A heating plate 03 is arranged on the inner side of the heat insulating plate 02. Specifically, a cylindrical heating plate of elastic silicone rubber can be selected to play the role of constant temperature heating. The heating plate 03 is in direct contact with the radon source test piece 00 on the one hand, and is in direct contact with the heat insulating plate 02 on the other hand. During the measurement process, the temperature of the heating plate 03 can be controlled by the external temperature control system, on the one hand, the temperature of the radon source test piece 00 can be kept constant, and the influence of the temperature change on the radon diffusion coefficient can be eliminated; on the other hand, the temperature can be used as a variable, The anti-radon performance of the paint 05 to be tested under different temperature gradients was measured.

In this embodiment, the heating plate 03 and the heat insulating plate 02 are both elastic materials, so as to ensure that the ambient temperature of the radon source test piece 00 is always constant during the measurement process, and eliminate the error caused by the change of the external environment during the measurement process on the measurement results.

The paint layer module 04 is arranged between the radon collecting cover 06 and the radon source container shell 01, and is used for fixing the paint 05 to be tested. As a preferred embodiment, the measuring device in this embodiment may include paint layer modules 04 with different thicknesses, and each paint layer module 04 is used to fix a paint layer of a corresponding thickness to be measured. During the measurement process, the paint layer module 04 not only plays the role of fixing the paint to be tested 05 , but also can calibrate the thickness of the paint to be tested 05 applied inside the paint layer module 04 . In practical applications, the coating layer module 04 with the target thickness can be selected according to actual requirements, so as to achieve the purpose of controlling the thickness of the coating 05 to be tested. On this basis, the thickness of the paint to be tested 05 can be used as a variable to detect the influence of the thickness of the paint to be tested 05 on its radon diffusion coefficient.

In addition, in order to ensure that the radon gas inside the radon source container shell 01 enters the radon collecting cover through the paint layer to be tested, as a preferred embodiment, the hollow structure of the paint layer module 04 for fixing the paint to be tested 05 is The shape is set to the shape of the opening of the radon source container casing 01 . Further, the shape of the opening of the side of the radon collecting cover 06 facing the paint layer module 04 can be set to the shape of the hollow structure of the paint layer module 04 .

In this embodiment, the radon collecting cover 06 and the paint layer module 04 are sealed and connected, and the paint layer module 04 and the radon source container shell 01 are sealed and connected, so as to ensure that the radon gas released by the radon source test piece 00 penetrates the paint to be tested The layer diffuses into the radon collection cover to avoid external environmental interference. As a specific embodiment, the sealed connection between the radon collection cover 06 and the paint layer module 04 can be realized by fixing screws, airtight gaskets, and fixing bolts, and at the same time, the connection between the paint layer module 04 and the radon source container shell 01 can be realized. sealed connection.

The radon collecting cover 06 and the radon measuring instrument 09 in this embodiment are communicated through a radon gas input pipe 07 and a radon gas output pipe 08 . The shape of the radon gas input pipe 07 matches the shape of the air inlet of the radon measuring instrument 09 on the one hand, and matches the shape of the sampling port reserved for the radon collecting cover 06 on the other hand; The shape matches the shape of the outlet of the radon measuring instrument 09 on the one hand, and matches the shape of the sampling port reserved for the radon collecting cover 06 on the other hand, so as to ensure that the radon gas input pipe 07 is connected with the radon measuring instrument 09 and the radon collecting cover. 06, and ensure the air tightness between the radon gas output pipe 08, the radon measuring instrument 09, and the radon collecting cover 06. Regarding the material selection of the radon gas input pipe 07 and the radon gas output pipe 08, a rubber airway can be selected specifically.

In this embodiment, the radon meter 09 is used to measure the content of radon and radon progeny in a unit volume, that is, the radon concentration. For some environments with low radon concentration to be measured, if the radon collecting space is too large, the measurement error of the radon measuring instrument will be greatly reduced. Small set radon shield 06.

After the radon gas concentration inside the radon collecting cover 06 is obtained by using the radon measuring instrument 09, the radon diffusion coefficient of the paint to be tested can be obtained according to the corresponding calculation method, which will not be introduced here.

This embodiment provides a radon diffusion coefficient measuring device, which can use a coating layer module to fix the coating to be tested, so that the interior of the radon source container shell and the interior of the radon collecting cover are connected through the coating layer to be tested, so that the radon released by the radon source test piece is The gas diffuses into the radon collecting hood through the coating layer to be tested, and the radon gas concentration in the radon collecting hood is measured by the closed cavity method with a radon measuring instrument. Based on this, the radon diffusion coefficient of the coating to be tested is calculated, and the coating to be tested is realized. measurement of radon resistance. In addition, the inner side of the radon source container shell is provided with a heating plate and a thermal insulation board, on the one hand, the internal temperature of the radon source container shell can be kept constant, and the interference of temperature changes on the measurement results can be avoided; on the other hand, the temperature inside the radon source container shell can be adjusted. , to detect the effect of temperature on radon diffusion coefficient or radon release rate from radon source specimens. Finally, the thickness of the paint layer to be tested in the paint layer module can be changed to detect the influence of the paint thickness on the measurement results.

The second embodiment of a radon diffusion coefficient measuring device provided by the present application will be described in detail below. The second embodiment is implemented based on the above-mentioned first embodiment, and is expanded to a certain extent on the basis of the first embodiment.

Specifically, in order to improve the measurement efficiency, the shell of the radon source container can be provided with multiple openings, and each opening is correspondingly provided with a coating layer module, a radon collection cover, a radon gas input pipe, a radon gas output pipe, a radon measuring instrument, etc. Embodiment Second, the radon source container shell is provided with two openings as an example for description. In addition, in order to ensure the uniform release of radon gas, the second embodiment uses a cylindrical radon source test piece. Correspondingly, the overall radon source container shell is hollow cylindrical, and the coating layer module uses a circular coating layer standard ring. Moreover, in order to ensure that all radon gas enters the radon collecting cover through the coating layer to be tested, the shape of the hollow structure of the coating layer in this embodiment is the same as the shape of the opening of the radon source container. Finally, in order to ensure the accuracy of the radon gas concentration measurement result and avoid damage to the radon measuring instrument by water vapor, a dryer is set between the radon gas input pipe and the radon measuring instrument in the second embodiment.

Referring to Figure 2, the second embodiment specifically includes:

A radon source container shell 5 for storing radon source test pieces, the radon source container shell 5 has a first opening and a second opening;

the thermal insulation board 12 arranged on the inner side of the radon source container shell 5;

the heating plate 11 arranged on the inner side of the heat insulating plate 12;

The first paint layer standard ring 41 and the second paint layer standard ring 42 sealed with the first opening and the second opening of the radon source container shell 5;

The first radon collecting cover 21 sealedly connected with the first paint layer standard ring 41, and the second radon collecting cover 22 sealed with the second paint layer standard ring 42;

The first radon gas input pipe 71 and the first radon gas output pipe 72 are arranged on the first radon collecting cover 21, and the second radon gas input pipe 73 and the second radon gas output pipe 74 are arranged on the second radon gas collecting cover 22;

The first radon measuring instrument 91 connected with the first radon gas input pipe 71 and the first radon gas output pipe 72, the second radon measuring instrument connected with the second radon gas input pipe 73 and the second radon gas output pipe 74 92;

One end is connected with the first radon gas input pipe 71, the other end is connected with the first radon measuring instrument 91, one end is connected with the second radon gas input pipe 73, and the other end is connected with the second radon measuring instrument 91. 92 connected second dryer 82;

Fixing screw 1, airtight pad 3, fixing bolt 6.

The corresponding relationship between the labels in FIG. 2 and the parts of the measuring device of the present embodiment is shown in Table 2:

Table 2

Specifically, in this embodiment, the shape of the first opening of the radon source container shell 5 is the same as the shape of the second opening. In addition, as a preferred embodiment, in this embodiment, the first opening and the second opening of the radon source container shell 5 are disposed opposite to each other. The specific radon source container shell 5 is shown in FIG. 3 .

In this embodiment, the first paint layer standard ring 41 and the second paint layer standard ring 42 are provided with hollow inner rings, and the hollow inner rings are used to fix the paint 13 to be tested. In this embodiment, the shape of the hollow inner ring of the first paint layer standard ring 41 is the same as the shape of the first opening of the radon source container shell 5, and the shape of the hollow inner ring of the second paint layer standard ring 42 is the same as the shape of the radon source container shell The shape of the second opening of 5 is the same. Correspondingly, the shape of the opening of the first radon collecting cover 21 is the same as the shape of the hollow inner ring of the standard ring 41 of the first paint layer, and the shape of the opening of the second collecting radon cover 22 is the same as that of the hollow inner ring of the standard ring 42 of the second paint layer. The rings are the same shape.

As a specific implementation manner, in this embodiment, a cylindrical standard specimen with a diameter of 50 mm and a height of 100 mm is used as the radon source specimen 14 . The specific paint layer standard ring is shown in Figure 4.

The thickness of the radon source container shell 5 in direct contact with the heat insulating plate 12 is set to be 5 mm, which plays the role of fixing the radon source test piece 14 and ensures the sealing connection with the first radon collecting cover 21 and the second radon collecting cover 22 .

The thickness of the insulation board 12 is set to 2mm, and the elastic material is used to play the role of heat insulation and sealing, so as to ensure that all radon on the surfaces of the two ends of the radon source test piece 14 is precipitated to the first radon cover 21 and the second radon set on both sides. within the radon collection chamber 10 of the cover 22 .

The heating plate 11 adopts a customized elastic silicone rubber cylindrical heating plate with a thickness of 3 mm, which plays a role of constant temperature heating. The heating plate 11 is in direct contact with the radon source test piece 14, and its temperature is controlled by an external temperature control system. The constant temperature of the source test piece 14 eliminates the influence of temperature changes on the radon diffusion coefficient; on the other hand, the anti-radon performance of the paint 13 to be tested under different temperature gradients is measured.

The heating plate 11 and the insulating plate 12 are both elastic materials, which can ensure that the ambient temperature of the radon source test piece 14 is always constant during the measurement process, eliminate the error caused by the change of the external environment during the measurement process on the experimental results, and at the same time ensure that the radon source is removed from the radon source. The surface of the test piece 14 is precipitated on one side, which improves the accuracy of the measurement results.

The first paint layer standard ring 41 is placed between the first radon collecting cover 21 and the radon source container shell 5 , and the second paint layer standard ring 42 is placed between the second radon collecting cover 22 and the radon source container shell 5 . The inner diameter of the standard ring of the paint layer can be set to 50mm. The paint layer standard ring is used to fix the paint to be tested 13 and also to calibrate the thickness of the paint to be tested 13 applied in the sample ring. The measuring device of this embodiment includes a plurality of standard rings of paint layers with different thicknesses. As a specific implementation manner, the thicknesses may be 4 mm, 6 mm, and 8 mm, respectively. In practical application, the thickness of the paint layer standard ring can be adjusted according to needs to control the thickness of the paint to be tested 13, and the anti-radon efficiency and radon diffusion coefficient of the paint to be tested 13 of any thickness can be detected by changing the thickness of the paint layer standard ring.

As a specific implementation manner, in this embodiment, a RAD-7 radon detector is selected as the first radon detector 91 and the second radon detector 92 . The principle of the radon detector is to measure the content of radon and radon progeny in a unit volume, that is, the radon concentration. For some environments with low radon concentration to be measured, if the radon collection space is too large, the measurement of the radon measuring instrument will be greatly reduced. In order to reduce this error, the radon collecting cover (including the first radon collecting cover 21 and the second radon collecting cover 22 ) in this embodiment adopts a small-scale space with an inner diameter of 50 mm and a height of 30 mm.

In this embodiment, two radon collecting spaces are set, including a first radon collecting cover 21 and a second radon collecting cover 22, which have two functions: first, to achieve two different thicknesses of the same paint to be tested at both ends Simultaneously measure, measure the basically stable radon concentration in the radon collecting hoods at both ends, so as to deduce the radon diffusion coefficient of the paint 13 to be tested; secondly, multiple paints can be measured at the same time to improve the measurement efficiency and speed up the measurement progress.

Two sampling ports 15 are reserved on the sides of the first collecting radon cover 21 and the second collecting radon cover 22 with a diameter of 8 mm. One sampling port of the first collecting radon cover 21 is sealedly connected with the first radon gas input pipe 71, and the other sampling port is sealedly connected with the first radon gas output pipe 72; one sampling port of the second collecting radon cover 22 is sealed with the A second radon gas input pipe 73 is sealed and connected with a second radon gas output pipe 74 to the other sampling port.

For the convenience of description, the first radon gas input pipe 71, the first radon gas output pipe 72, the second radon gas input pipe 73, and the second radon gas output pipe 74 are collectively referred to as radon gas collection pipes, and the radon gas collection pipes are mainly based on Connect the size setting of the air inlet or outlet of the radon detector. Specifically, a rubber airway can be used, and the diameter is slightly less than 8mm, so as to ensure the airtightness of the airway when it is inserted into the sampling port 15.

This embodiment is provided with a dryer, which is mainly used to dry the radon (gas) that is about to enter the radon measuring instrument through the radon gas collection pipe, so as to reduce the damage to the radon measuring instrument and ensure the accuracy of the measurement results. Specifically, as shown in FIG. 2 , the first radon gas input pipe 71 in this embodiment is connected to the first radon detector 91 via the first dryer 81 , and the second radon gas input pipe 73 is connected to the first radon gas input pipe 73 via the second dryer 82 . The second radon detector 92 is connected.

The device adopts the closed cavity method to measure the radon concentration of radon diffused into the radon collecting cover through the paint 13 to be tested. The standard ring is sealed and connected, and the standard ring of the paint layer and the shell 5 of the radon source container are sealed and connected by using an airtight gasket 3 and a fixing bolt 6. As shown in FIG. 2, the fixing screw 1, the airtight gasket 3 and the fixing bolt 6 are used to realize the sealing connection between the radon source container shell 5 and the standard ring 41 of the first paint layer and the standard ring 42 of the second paint layer, so as to realize the first A sealed connection between the standard ring 41 of a paint layer and the first radon collecting cover 21 is achieved, and a sealed connection between the second paint layer standard ring 42 and the second collecting radon cover 22 is realized. The specific radon collection cover, the standard ring of the coating layer, and the radon source container shell are shown in Figure 5.

It can be seen that the device for measuring radon diffusion coefficient provided in this embodiment has at least the following advantages: it is suitable for measuring low concentration radon, with high precision and small error; it can be used to measure the anti-radon effect of various anti-radon coatings, that is, radon Diffusion coefficient; by freely controlling the thickness of the coating to be tested by controlling the standard ring of the coating layer, the influence of the thickness gradient of the coating to be tested on the anti-radon efficiency can be detected; by controlling the temperature of the heating plate, the effect of the temperature gradient on the radon release rate of the radon source can be detected. influences.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments may be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant part can be referred to the description of the method.

The steps of a method or algorithm described in connection with the embodiments disclosed herein may be directly implemented in hardware, a software module executed by a processor, or a combination of the two. The software module can be placed in random access memory (RAM), internal memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other in the technical field. in any other known form of storage medium.

The solutions provided by this application have been introduced in detail above, and specific examples are used to illustrate the principles and implementations of this application. The descriptions of the above embodiments are only used to help understand the methods and core ideas of this application; , for those of ordinary skill in the art, according to the idea of the application, there will be changes in the specific embodiments and application scope. To sum up, the content of this specification should not be construed as a limitation to the application.

Claims (9)

1. a measuring device of radon diffusion coefficient, is characterized in that, comprises: A radon source container shell for storing radon source test pieces, the radon source container shell is provided with an opening; an insulating plate arranged on the inner side of the radon source container shell; a heating plate arranged on the inner side of the heat insulating plate; a paint layer module sealingly connected to the opening of the radon source container shell, the paint layer module has a hollow structure, and the hollow structure is used for fixing the paint to be tested; a radon collecting cover sealed with the paint layer module; a radon gas input pipe and a radon gas output pipe arranged on the radon collecting cover; A radon meter connected with the radon gas input pipe and the radon gas output pipe. 2. the measuring device of radon diffusion coefficient as claimed in claim 1, is characterized in that, also comprises: One end is connected with the radon gas input pipe, and the other end is connected with the radon tester, and the radon gas input pipe is connected with the radon tester through the dryer. 3. The measuring device of radon diffusion coefficient as claimed in claim 2, wherein the radon measuring instrument is a RAD-7 radon measuring instrument. 4 . The radon diffusion coefficient measuring device according to claim 1 , wherein the shape of the hollow structure of the coating layer module is the same as the shape of the opening of the radon source container shell. 5 . 5 . The measuring device of radon diffusion coefficient according to claim 4 , wherein the paint layer module is an annular paint layer standard ring. 6 . 6. The measuring device of radon diffusion coefficient as claimed in claim 5, is characterized in that, comprises: Multiple paint layer modules of different thicknesses. 7. The measuring device of radon diffusion coefficient as claimed in claim 1, is characterized in that, also comprises: Fixing screws, air-tight pads, and fixing bolts; the fixing screws, the air-tight pads and the fixing bolts are used to realize the sealed connection between the shell of the radon source container and the paint layer module, and realize the A sealed connection between the paint layer module and the radon collection cover. 8. The measuring device of radon diffusion coefficient according to any one of claims 1-7, wherein the radon source container shell is provided with a first opening and a second opening; correspondingly, the radon diffusion coefficient of The measuring device includes: A first paint layer module and a second paint layer module sealed with the first opening and the second opening of the radon source container shell, the first paint layer module and the second paint layer module have a hollow structure , the hollow structure is used to fix the paint to be tested; a first radon collecting cover sealed with the first paint layer module, and a second radon collecting cover sealed with the second paint layer module; The first radon gas input pipe and the first radon gas output pipe are arranged on the first radon collecting cover, and the second radon gas input pipe and the second radon gas output pipe are arranged on the second radon collecting cover; The first radon meter connected with the first radon gas input pipe and the first radon gas output pipe, the second radon detector connected with the second radon gas input pipe and the second radon gas output pipe Radon meter. 9 . The radon diffusion coefficient measuring device according to claim 8 , wherein the first opening and the second opening of the radon source container shell are disposed opposite to each other. 10 .

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