System for detecting iodine adsorption performance of material

Abstract

The invention discloses a system for detecting the iodine adsorption performance of a material, and relates to the technical field of adsorption measurement devices. The iodine storage bin comprises a first bin body for storing solid iodine and a second bin body for placing an iodine adsorption material, a pipeline provided with a valve is communicated between the first bin body and the second bin body; the internal volume of the first bin body is larger than that of the second bin body. By arranging the first bin body and the second bin body which exist independently, during use, solid iodine in the first bin body is controlled to become gaseous, then the first bin body and the second bin body are controlled to be communicated, and at the moment, the iodine adsorption material placed in the second bin body is used for absorbing gaseous iodine escaping into the second bin body; during use, the temperature in the first bin body and the temperature in the second bin body are controlled to be 70-85 DEG C, and gaseous iodine escaping into the second bin body is prevented from being condensed after being cooled.

Description

Technical Field

[0001] The present invention belongs to the technical field of adsorption measurement devices, and particularly relates to a detection system for the iodine adsorption performance of materials. Background Art

[0002] In the field of radioactive pollution treatment, the performance detection of iodine adsorption materials is crucial. Most traditional detection systems use airtight containers for iodine vapor adsorption tests, but there are the following technical defects: Most of the current laboratory devices for measuring the iodine adsorption performance of porous materials are glass containers with a large bottle covering a small bottle, that is, the sample to be tested is placed in an open small bottle, and then the small glass bottle is put into a large glass bottle containing an appropriate amount of iodine, the bottle mouth is sealed, and finally it is placed in a heating device. The large bottle covering the small bottle has poor sealing performance, and iodine vapor is likely to diffuse out and cause air pollution. Moreover, in a real radioactive gaseous iodine atmosphere, it is a mixed gas with humidity. Traditional glass containers cannot adjust the gas humidity and cannot be used to study the influence of humidity and interfering gases on the material adsorption performance. The simple sealing of glass containers also cannot be used to study the influence of gas pressure on the adsorption performance. In addition, during the experimental heating process, iodine solid sublimes into gas and fills the large bottle. However, while the sample adsorbs iodine vapor, part of the iodine substance will adhere to the inner wall and outer wall of the small bottle containing the sample, especially the bottom of the small bottle. And when the small bottle is taken out and cooled after the experiment, the iodine vapor inside it condenses into a solid and falls to the bottom of the bottle, which will affect the accuracy of the measurement results. Summary of the Invention

[0003] The purpose of the present invention is to provide a detection system for the iodine adsorption performance of materials. By setting up an independently existing first chamber and second chamber, first controlling the solid iodine in the first chamber to become gaseous during use, and then controlling the first chamber and the second chamber to be connected, the problems raised in the background art are solved.

[0004] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0005] The present invention is a detection system for the iodine adsorption performance of a material, including a first chamber for storing solid iodine and a second chamber for placing an iodine adsorption material; a pipeline with a valve is connected between the first chamber and the second chamber; the internal volume of the first chamber is several times that of the second chamber to ensure that after the first chamber and the second chamber are connected, the gas concentration in the second chamber is quickly equal to that in the first chamber, and the materials include but are not limited to porous carbon materials, molecular sieves, graphene, metal-organic framework materials, covalent framework materials, and modified materials, etc.

[0006] Furthermore, the first chamber, the second chamber, the pipeline, and the valve are all made of 316 stainless steel material; there is also a heating box, and during use, the whole formed by the second chamber and the first chamber is placed in the heating box.

[0007] Further, the first chamber body, the second chamber body and the pipeline structure are the same; from the inside to the outside, they sequentially include a 316 stainless steel layer, a heating layer composed of multiple heating rods, a heat insulation layer and a metal structure outer layer.

[0008] Further, temperature sensors are arranged in both the first chamber body and the second chamber body.

[0009] Further, a temperature and humidity sensor is arranged in the first chamber body, and a humidifier for heating the inside is also arranged.

[0010] Further, other mixed gases can be injected into the first chamber body, and a vacuum pumping interface and a barometer are arranged on the first chamber body.

[0011] Further, sealing chamber doors are hingedly installed on the open end sides of both the first chamber body and the second chamber body, and an observation window A is installed on the sealing chamber door.

[0012] Further, sealing chamber door A is hingedly installed on the open end side of the first chamber body, and an observation window A is installed on the sealing chamber door; an observation window B is arranged on one side wall of the second chamber body, and a through hole is arranged on the top, bottom or peripheral side wall of the second chamber body; a pipe body is communicated with the inner wall of the through hole; a storage mechanism sliding along the inner wall of the pipe body is further included, the storage mechanism is used for placing iodine adsorption materials, a sealing plate in sealing cooperation with the through hole is arranged at the end of the storage mechanism, and a grip rod is arranged at the end of the sealing plate; a convex ring is arranged on the outer peripheral side wall of the pipe body, a spring sleeved on the outer peripheral side of the pipe body is connected to the convex ring, a guide sleeve sleeved on the outer side of the pipe body is connected to the end of the spring, and a movable end plate in sealing cooperation with the end face of the pipe body is connected to the end of the guide sleeve through a plurality of connecting rods.

[0013] Further, when the through hole is arranged at the top or bottom of the second chamber body, the pipe body is in a vertical state at this time; the storage mechanism includes a container with an open top and a support ring for placing the container, one side of the support ring is connected to one side of the sealing plate through a connecting column, and a sliding ring sliding along the through hole and the inner wall of the pipe body is connected to the outside of the connecting column; a plurality of ejector rods are arranged on the other side of the support ring.

[0014] Further, when the through hole is arranged on the side wall of the second chamber body, the through hole is a rectangular hole, the pipe body is in a horizontal state at this time, and the storage mechanism includes a rectangular rod sliding along the through hole and the inner wall of the pipe body, and a groove is arranged on the rectangular rod, and a container with an open top is placed in the groove.

[0015] Further, an air pump for driving gas to flow between the first chamber body and the second chamber body is further included.

[0016] The present invention has the following beneficial effects:

[0017] In the present invention, by providing an independently existing first chamber and a second chamber, during use, first control the solid iodine in the first chamber to turn into a gaseous state, and then control the first chamber and the second chamber to be connected. At this time, use the iodine adsorption material placed in the second chamber to absorb the gaseous iodine that escapes into the second chamber. During use, control the internal temperatures of both the first chamber and the second chamber to be between 70°C and 85°C to prevent the gaseous iodine that escapes into the second chamber from subliming after cooling.

[0018] Of course, it is not necessary for any product implementing the present invention to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 Schematic structural diagram of the detection system of the present invention;

[0021] Figure 2 Schematic structural diagram of the first chamber of the present invention;

[0022] Figure 3 Schematic structural diagram of the cooperation between the storage mechanism and the tube body of the present invention;

[0023] Figure 4 Schematic structural diagram of the tube body of the present invention;

[0024] Figure 5 Schematic structural diagram of the storage mechanism of the present invention Figure 1 ;

[0025] Figure 6 Schematic structural diagram of the storage mechanism of the present invention Figure 2 ;

[0026] Figure 7 Schematic structural diagram of the storage mechanism of the present invention Figure 3 . DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] See also Figure 1 As shown, the present invention is a material iodine adsorption performance detection system, comprising a first warehouse body 1 and a second warehouse body 2 connected by a pipeline 3, and the internal volume of the first warehouse body 1 is four times the internal volume of the second warehouse body 2, and a valve 31 is provided on the pipeline 3, and before use, the iodine adsorption material is placed in the iodine adsorption material, and the solid iodine is placed in the first warehouse body 1. When in use, when the solid iodine in the first warehouse body 1 sublimates to a certain extent, the valve 31 is opened at this time, and then the gaseous iodine diffused in the first warehouse body 1 at this time escapes into the second warehouse body 2, and the gaseous iodine escaped into the second warehouse body 2 is absorbed by the iodine adsorption material.

[0030] During use, in order to prevent the gaseous iodine that escapes into the second chamber from cooling and condensing, the entire device consisting of the pipeline 3, the first chamber 1 and the second chamber 2 is kept at a temperature between 70°C and 85°C during use.

[0031] The internal volume of the first chamber 1 is 5 times the internal volume of the second chamber 2, ensuring that after the first chamber 1 and the second chamber 2 are connected, the gas concentration in the second chamber 2 will quickly equal the gas concentration in the second chamber 1, and the materials include but are not limited to porous carbon materials, molecular sieves, graphene, metal organic framework materials, covalent framework materials and modified materials, etc.

[0032] Based on this, in order to maintain the temperature between 70°C and 85°C based on the overall setting of the device, the present invention provides the following two specific solutions:

[0033] Solution 1: The first bin body 1, the second bin body 2, the pipeline 3 and the valve 31 are all made of 316 stainless steel. When in use, the entire device is placed in a heating box for heating. The temperature of the heating box is controlled between 70°C and 85°C for the experiment.

[0034] Method 2: If Figure 2 The first bin body 1, the second bin body 2 and the pipeline 3 have the same structure; from the inside to the outside, they include a 316 stainless steel layer 101, a heating layer 102 composed of multiple heating rods, an insulation layer 103 and a metal structure outer layer 104. When in use, they are heated by the heating layer 102, thereby maintaining the overall internal temperature of the first bin body 1, the second bin body 2 and the pipeline 3 between 70°C and 85°C for the experiment.

[0035] Of course, when in use, in order to facilitate the detection of temperature, temperature sensors are provided in both the first chamber 1 and the second chamber 2.

[0036] When in use, in order to control the humidity inside the entire device composed of the pipeline 3, the first chamber 1 and the second chamber 2, temperature and humidity sensors are provided in both the first chamber 1 and the second chamber 2, and humidifiers for heating the interior are also provided.

[0037] Specifically, when in use, in order to facilitate the observation of the sublimation of solid iodine and the adsorption of iodine adsorption material during use, the present invention is hingedly installed with sealed chamber doors on the open end sides of both the first chamber 1 and the second chamber 2, and observation window A is installed on the sealed chamber door.

[0038] It can be known that when studying the iodine adsorption capacity of the iodine adsorption material, it is necessary to take out the iodine adsorption material from the second chamber 2 for weighing at regular intervals (the regular intervals include 5 minutes, 10 minutes, 20 minutes, etc.), and then detect and analyze the iodine adsorption performance of the iodine adsorption material.

[0039] Therefore, when in use, to avoid the escape of gaseous iodine caused by the repeated opening of the container during the material loading operation, and the escape of gaseous iodine caused by the destruction of the system sealing during sampling and detection, the present invention is hingedly installed with sealed chamber door A on the open end side of the first chamber 1, and observation window A is installed on the sealed chamber door; an observation window B is provided on one side wall of the second chamber 2; as Figure 3-4 , through holes 22 are provided through the top, bottom or circumferential side wall of the second chamber 2; the inner wall of the through hole 22 is connected to a pipe body 23; a storage mechanism 26 that slides along the inner wall of the pipe body 23 is further included, the storage mechanism is used to place the iodine adsorption material, a sealing plate 24 that is hermetically fitted with the through hole 22 is provided at the end of the storage mechanism 26, and a grip rod 25 is provided at the end of the sealing plate 24; a convex ring 231 is provided on the outer peripheral side wall of the pipe body 23, a spring 232 sleeved on the outer peripheral side of the pipe body 23 is connected to the convex ring 231, the end of the spring 232 is connected to a guide sleeve 233 sleeved on the outside of the pipe body 23, and the end of the guide sleeve 233 is connected to a movable end plate 235 that is hermetically fitted with the end face of the pipe body 23 through a plurality of connecting rods 234.

[0040] Based on the above settings, when the storage mechanism 26 is pulled outwards from the through hole 22, at this time the movable end plate 235 seals and plugs the end face of the pipe body 23, thereby preventing the gaseous iodine inside the second chamber 2 from escaping to the environment from the through hole 22.

[0041] Based on the actual setting, when the opening 22 is provided at the top or bottom of the second bin body 2, the pipe body 23 is in a vertical state at this time; the storage mechanism 26 includes a container 260 with an open top and a support ring 261 for placing the container 260. One side of the support ring 261 is connected to one side of the sealing plate 24 through a connecting column 262, and a sliding ring 263 that slides along the inner walls of the opening 22 and the pipe body 23 is connected to the outside of the connecting column 262; several ejector rods 264 are provided on the other side of the support ring 261.

[0042] When the opening 22 is provided at the top of the second bin body 2, the support ring 261 and the container 260 cooperate as Figure 5 shown.

[0043] When the opening 22 is provided at the bottom of the second bin body 2, the support ring 261 and the container 260 cooperate as Figure 6 shown.

[0044] Based on the actual setting, as Figure 7 , when the opening 22 is provided on the side wall of the second bin body 2, the opening 22 is a rectangular hole, and the pipe body 23 is in a horizontal state at this time. The storage mechanism 26 includes a rectangular rod 265 that slides along the inner walls of the opening 22 and the pipe body 23. A groove 266 is provided on the rectangular rod 265, and a container 260 with an open top is placed in the groove 266.

[0045] It can be known that in order to accelerate the gaseous iodine in the first bin body 1 to enter the second bin body 2 when the valve 31 is opened, an air pump is also provided, and the air inlet and outlet ends of the air pump are respectively communicated with the second bin body 2 and the first bin body 1.

[0046] And it can be known that during use, oxygen, nitrogen, or other mixed gases can be injected into the first bin body 1, and the first bin body 1 is provided with a vacuum pumping interface and a barometer. Therefore, during use, the effects of other gases, humidity, and pressure on the iodine adsorption performance of the material can be studied.

[0047] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0048] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A material iodine adsorption performance detection system, characterized in that: It includes a first bin (1) for storing solid iodine and a second bin (2) for placing iodine adsorption materials; A pipeline (3) with a valve (31) is communicatively provided between the first bin (1) and the second bin (2); the internal volume of the first bin (1) is larger than that of the second bin (2).

2. The iodine adsorption performance detection system for a material according to claim 1, wherein The first bin (1), the second bin (2), the pipeline (3) and the valve (31) are all made of 316 stainless steel material; It further includes a heating box. During use, the whole formed by the second bin (2) and the first bin (1) is placed in the heating box.

3. The iodine adsorption performance detection system for a material according to claim 1, wherein The first bin (1), the second bin (2) and the pipeline (3) have the same structure; It sequentially includes a 316 stainless steel layer (101), a heating layer (102) composed of multiple heating rods, a heat preservation layer (103) and a metal structure outer layer (104) from inside to outside.

4. A material iodine adsorption performance detection system according to any one of claims 1-3, characterized in that, Temperature sensors are arranged in both the first bin (1) and the second bin (2).

5. A material iodine adsorption performance detection system according to any one of claims 1 - 3, characterized in that, Humidity sensors are arranged in both the first bin (1) and the second bin (2), and humidifiers for heating the inside are also arranged in both of them.

6. The iodine adsorption performance detection system for a material according to any one of claims 1-3, characterized in that Sealed bin doors are hingedly installed on the open end sides of the first bin (1) and the second bin (2), and observation window A is installed on the sealed bin doors.

7. A material iodine adsorption performance detection system according to any one of claims 1-4, characterized in that, Sealed bin door A is hingedly installed on the open end side of the first bin (1), and observation window A is installed on the sealed bin door. Observation window B is arranged on one side wall of the second bin (2), and through holes (22) are arranged on the top, bottom or circumferential side wall of the second bin (2); the inner wall of the through hole (22) is communicatively connected to a pipe body (23); It further includes a storage mechanism (26) sliding along the inner wall of the pipe body (23). The storage mechanism is used for placing iodine adsorption materials. A sealing plate (24) in sealing cooperation with the through hole (22) is arranged at the end of the storage mechanism (26), and a grip rod (25) is arranged at the end of the sealing plate (24); A convex ring (231) is arranged on the outer peripheral side wall of the pipe body (23). A spring (232) sleeved on the outer peripheral side of the pipe body (23) is connected to the convex ring (231). The end of the spring (232) is connected to a guide sleeve (233) sleeved on the outside of the pipe body (23). The end of the guide sleeve (233) is connected to a movable end plate (235) in sealing cooperation with the end face of the pipe body (23) through a plurality of connecting rods (234).

8. An iodine adsorption performance detection system for a material according to claim 7, characterized in that, When the through hole (22) is arranged at the top or bottom of the second bin (2), the pipe body (23) is in a vertical state at this time; The storage mechanism (26) includes a container (260) with an open top and a support ring (261) for placing the container (260). One side of the support ring (261) is connected to one side of the sealing plate (24) through a connecting column (262), and a sliding ring (263) sliding along the inner walls of the through hole (22) and the pipe body (23) is connected to the outside of the connecting column (262); A plurality of ejector rods (264) are arranged on the other side of the support ring (261).

9. The iodine adsorption performance detection system for a material according to claim 7, wherein When the opening (22) is arranged on the side wall of the second bin (2), the opening (22) is a rectangular hole. At this time, the pipe body (23) is in a horizontal state. The storage mechanism (26) includes a rectangular rod (265) that slides along the inner wall of the opening (22) and the pipe body (23). A groove (266) is arranged on the rectangular rod (265), and a container (260) with an open top is placed in the groove (266).

10. A material iodine adsorption performance detection system according to claim 1, characterized in that, It further includes an air pump for driving gas to flow between the first bin (1) and the second bin (2).

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