CN104751926A - Device for adsorbing radon gas by ZIF-8 - Google Patents
Device for adsorbing radon gas by ZIF-8 Download PDFInfo
- Publication number
- CN104751926A CN104751926A CN201510158102.0A CN201510158102A CN104751926A CN 104751926 A CN104751926 A CN 104751926A CN 201510158102 A CN201510158102 A CN 201510158102A CN 104751926 A CN104751926 A CN 104751926A
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- China
- Prior art keywords
- gas
- zif
- radon
- tracheae
- adsorbent equipment
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/02—Treating gases
Abstract
The invention discloses a device for adsorbing radon gas by ZIF-8. The device comprises a standard gas chamber (2) including the radon gas, wherein gas inlets and gas outlets are arranged in the standard gas chamber (2) and interconnected through a gas pipe; an adsorbing device (14), an air pump (8), a flow meter (10) and a gas detector are arranged on the gas pipe (4). The ZIF-8 is used as the adsorbing device, and the porous structure of the device has the good adsorption effect; besides the device adopts a cyclic adsorption form for thorough adsorption, and the radon gas in the radon gas chamber is in the relative steady concentration range.
Description
Technical field
The present invention relates to a kind of device being adsorbed radon gas by ZIF-8.
Background technology
The radiation hazard of Radon and its descendants, be confirmed to be one of major reason producing lung cancer by radioactivity international cancer research institution (IARC), radon is classified as the most dangerous carcinogen by EPA.Radon radioactive contamination is also the main inducing of leukaemia etc.Building materials (especially flyash brick, cinder brick, bone coal brick, slag and slag cement) is premises radon and alpha-contamination main source, and uranium (thorium) ore deposit is also the main source of Radon and its descendants.
The mechanism that Radon and its descendants causes a disease is such, and Radon and its descendants can be attached on the aerosol particle in air, suspends in atmosphere.When being inhaled in body, the solid-state daughter of short life of some radons can be deposited on tracheal wall or the lobe of the lung, not easily removed by body, the α particle long-term irradiation in human body produced when causing Radon and its descendants to decay, be injured tissue or cell (mainly organ) of health is made to suffer radiation damage, destroy the molecular structure of DNA, affect the regenerative process of cell, and cause the chromosomal distortion of cell.
In prior art, have the safeguard procedures of radon gas:
(1) ventilate: reducing at present radon daughter in mine is ventilate to the Main Means that miner endanger, but some are exploited to workplaces are many, geologic structure is complicated, ventilating system imperfection, radon daughter concentration are difficult to drop to limit levels.
(2) shield: protective coating aspect is mainly concentrated on to the research of Radon and its descendants protection, prevents the precipitation of radon.
(3) adsorb: the safeguard procedures in some high radon environment except ventilating use activated carbon filtration mouth mask, to reach the object lowering radon and suck.
Absorbent charcoal material is as a kind of traditional radon sorbing material.There is poor selectivity in adsorption process, the low inferior shortcoming of adsorption efficiency.Adding radon is a kind of carcinogen be present in air, and especially in uranium (thorium) ore deposit, radon consistence is very high, has very large infringement to the health of people and environment.Therefore be badly in need of finding a kind of new material for the absorption to radon.
Summary of the invention
The technical problem to be solved in the present invention is to provide and absorbs good adsorbent equipment to radon gas.
For solving the problem, the invention provides a kind of device being adsorbed radon gas by ZIF-8, be provided with the standard air chamber of radon gas in comprising, it is characterized in that, described standard air chamber is provided with air intake opening and gas outlet, and is communicated with by tracheae, and described tracheae is also provided with:
-adsorbent equipment, is inside provided with Powdered ZIF-8, after it is connected to described gas outlet;
-pneumatic pump, after being connected to described adsorbent equipment, it comprises the admission line and outlet pipe that are communicated with described tracheae, and described pneumatic pump can by described endotracheal gas by suction in admission line, and be drained in described tracheae by described outlet pipe;
-flowmeter, after being connected to the outlet pipe of described pneumatic pump, can monitoring stream through the gas flow of described flowmeter;
-gas detector, after being connected to described flowmeter, can carry out detection of dynamic to flowing through radon gas content in its gas.
As a further improvement on the present invention, described tracheae is also provided with a filtrator, after it is positioned at described standard air chamber, before described adsorbent equipment, described filtrator only can hold gas to be passed through.
As a further improvement on the present invention, described tracheae is also provided with an exsiccator, described exsiccator is between described filtrator and adsorbent equipment.
As a further improvement on the present invention, described adsorbent equipment comprises tubular, vitreous absorption body, described absorption body two ends are respectively equipped with the inlet, outlet end be communicated with described tracheae, described inlet end and outlet side cut off by being arranged on the intrinsic core of described absorption, are also provided with to be positioned at described absorption body and in pulverous ZIF-8 between described core and described inlet end.
Beneficial effect of the present invention is, adopt ZIF-8 as adsorbent equipment, its porous structure has good suction-operated, and this device adopts the form of circulation absorption in addition, and absorption is more thorough, also enables radon chamber concentration remain on certain scope.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of adsorbent equipment in Fig. 1;
Wherein: 2-standard air chamber; 4-tracheae; 6-filtrator; 8-pneumatic pump; 10-flowmeter; 12-gas detector; 14-adsorbent equipment; 16-exsiccator; 18-adsorbs body; 20-inlet end; 22-outlet side; 24-core.
Embodiment
Below the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, be provided with the standard air chamber 2 of radon gas, it is characterized in that in comprising, described standard air chamber 2 is provided with air intake opening and gas outlet, and is communicated with by tracheae 4, and described tracheae 4 is also provided with:
-adsorbent equipment 14, is inside provided with Powdered ZIF-8, after it is connected to described gas outlet;
-pneumatic pump 8, after being connected to described adsorbent equipment 14, it comprises draft tube 4 road and escape pipe 4 road that are communicated with described tracheae 4, and described pneumatic pump 8 can by the gas in described tracheae 4 by suction in draft tube 4 road, and be drained in described tracheae 4 by described escape pipe 4 road;
-flowmeter 10, after being connected to escape pipe 4 road of described pneumatic pump 8, can monitoring stream through the gas flow of described flowmeter 10;
-gas detector 12, after being connected to described flowmeter 10, can carry out detection of dynamic to flowing through radon gas content in its gas.
(1) adopt ZIF-8 as adsorbent equipment 14, its porous structure has good suction-operated;
(2) this device adopts the form of overall circulation absorption, adsorbs more thorough;
(3) be provided with gas detector 12, performance analysis can be carried out to the radon consistence flowing through it;
(4) be provided with flowmeter 10, the flow of mixed gas can be detected at any time, detect the gas flow values passed through and whether stablize, thus the structure that gas detector 12 is detected is more meaningful.
As a further improvement on the present invention, described tracheae 4 is also provided with a filtrator 6, after it is positioned at described standard air chamber 2, before described adsorbent equipment 14, described filtrator 6 only can hold gas to be passed through.
Filtrator 6 is set, because the half life period of the radon-222 of the present invention's use is 3.83 days, that is, the radon atom of some, through 3.83 days, due to radioactivity decay, have half radon atom to become the radioactive metal atom such as polonium, lead, bismuth, these metallic atoms are called radon daughter.This filtrator 6 that can only hold gas and pass through is set, these radon daughters can be filtered out.
As a further improvement on the present invention, described tracheae 4 is also provided with an exsiccator 16, described exsiccator 16 is between described filtrator 6 and adsorbent equipment 14.
Arrange exsiccator 16, because radon gas can be water-soluble, this exsiccator 16 can remove the moisture in mixed gas, prevents radon gas to be dissolved in the water.
As a further improvement on the present invention, described adsorbent equipment is core, and described adsorbent equipment 14 comprises tubular, vitreous absorption body 18, and described absorption body 18 two ends are respectively equipped with the inlet, outlet end 20 be communicated with described tracheae 4; 22, described inlet end 20 and outlet side 22 are cut off by the core 24 be arranged in described absorption body 18, are also provided with to be positioned at described absorption body 18 and to be pulverous ZIF-8 between described core 24 and described inlet end 20.
Because the gas that pulverous ZIF-8 is easy to by passing through blows away, adopting this structure, fixation can be played to Powdered ZIF-8.
Above embodiment is only the present invention's a kind of embodiment wherein, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (4)
1. one kind adsorbs the device of radon gas by ZIF-8, be provided with the standard air chamber (2) of radon gas in comprising, it is characterized in that, described standard air chamber (2) is provided with air intake opening and gas outlet, and be communicated with by tracheae (4), (4) are also provided with described tracheae:
-adsorbent equipment (14), is inside provided with Powdered ZIF-8, after it is connected to described gas outlet;
-pneumatic pump (8), after being connected to described adsorbent equipment (14), it comprises the admission line and outlet pipe that are communicated with described tracheae (4), described pneumatic pump (8) can by the gas in described tracheae (4) by suction in admission line, and be drained in described tracheae (4) by described outlet pipe;
-flowmeter (10), after being connected to the outlet pipe of described pneumatic pump (8), can the gas flow of monitoring stream through described flowmeter (10);
-gas detector (12), after being connected to described flowmeter (10), can carry out detection of dynamic to flowing through radon gas content in its gas.
2. a kind of device being adsorbed radon gas by ZIF-8 according to claim 1, it is characterized in that, described tracheae (4) is also provided with a filtrator (6), after it is positioned at described standard air chamber (2), before described adsorbent equipment (14), described filtrator (6) only can hold gas to be passed through.
3. a kind of device being adsorbed radon gas by ZIF-8 according to claim 2, it is characterized in that, described tracheae (4) is also provided with an exsiccator (16), described exsiccator (16) is positioned between described filtrator (14) and adsorbent equipment (6).
4. a kind of device being adsorbed radon gas by ZIF-8 according to claim 3, it is characterized in that, described adsorbent equipment (14) comprises tubular, vitreous absorption body (18), and described absorption body (18) two ends are respectively equipped with the inlet, outlet end (20 be communicated with described tracheae (4); 22), described inlet end (20) and outlet side (22) are cut off by the core (24) be arranged in described absorption body (18), are also provided with to be arranged in described absorption body (18) inner chamber and to be pulverous ZIF-8 between described core (24) and described inlet end (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510158102.0A CN104751926B (en) | 2015-04-03 | 2015-04-03 | A kind of device for adsorbing radon gas by ZIF 8 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510158102.0A CN104751926B (en) | 2015-04-03 | 2015-04-03 | A kind of device for adsorbing radon gas by ZIF 8 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104751926A true CN104751926A (en) | 2015-07-01 |
| CN104751926B CN104751926B (en) | 2017-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510158102.0A Active CN104751926B (en) | 2015-04-03 | 2015-04-03 | A kind of device for adsorbing radon gas by ZIF 8 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112023627A (en) * | 2020-09-17 | 2020-12-04 | 深圳市奇信集团股份有限公司 | Purification method for filtering radon gas by water |
| CN113877542A (en) * | 2021-10-21 | 2022-01-04 | 苏州大学 | Metal organic framework derived carbon material and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3890121A (en) * | 1974-02-19 | 1975-06-17 | Us Energy | Noble gas absorption process |
| KR20140132617A (en) * | 2013-05-08 | 2014-11-18 | 주식회사 디에스과학 | Portable apparatus for removing of radioactive noble gas |
| CN204202945U (en) * | 2014-09-07 | 2015-03-11 | 河南理工大学 | A kind of coal mine down-hole tunnel radon gas determinator |
| CN204632348U (en) * | 2015-04-03 | 2015-09-09 | 苏州大学 | A kind of device being adsorbed radon gas by ZIF-8 |
-
2015
- 2015-04-03 CN CN201510158102.0A patent/CN104751926B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3890121A (en) * | 1974-02-19 | 1975-06-17 | Us Energy | Noble gas absorption process |
| KR20140132617A (en) * | 2013-05-08 | 2014-11-18 | 주식회사 디에스과학 | Portable apparatus for removing of radioactive noble gas |
| CN204202945U (en) * | 2014-09-07 | 2015-03-11 | 河南理工大学 | A kind of coal mine down-hole tunnel radon gas determinator |
| CN204632348U (en) * | 2015-04-03 | 2015-09-09 | 苏州大学 | A kind of device being adsorbed radon gas by ZIF-8 |
Non-Patent Citations (3)
| Title |
|---|
| MARIE V. PARKES ET AL.: "Screening metal-organic frameworks for selective noble gas adsorption in air:effect of pore size and framework topology", 《PHYS.CHEM.CHEM.PHYS.》 * |
| MARIE V.PARKES ET AL.: "Molecular dynamics simulation of framework flexibility effects on noble gas diffusion in HKUST-1 and ZIF-8", 《MICROPOROUS AND MESOPOROUS MATERIALS》 * |
| 王孝娃 等: "金属-有机骨架材料用于放射性核素吸附", 《中国科学》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112023627A (en) * | 2020-09-17 | 2020-12-04 | 深圳市奇信集团股份有限公司 | Purification method for filtering radon gas by water |
| CN113877542A (en) * | 2021-10-21 | 2022-01-04 | 苏州大学 | Metal organic framework derived carbon material and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104751926B (en) | 2017-03-15 |
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Effective date of registration: 20211027 Address after: 064100 Caiting Bridge Town Caihe East Village, Yutian County, Tangshan City, Hebei Province Patentee after: Hebei Yuhe Technology Co.,Ltd. Address before: No. 8, Xiangcheng District Ji Xue Road, Suzhou, Jiangsu Patentee before: SOOCHOW University |
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