CN106971766B - The recyclable device of surabaya in a kind of molecular sieve - Google Patents
The recyclable device of surabaya in a kind of molecular sieve Download PDFInfo
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- CN106971766B CN106971766B CN201710247048.6A CN201710247048A CN106971766B CN 106971766 B CN106971766 B CN 106971766B CN 201710247048 A CN201710247048 A CN 201710247048A CN 106971766 B CN106971766 B CN 106971766B
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- surabaya
- molecular sieve
- operated valve
- pneumatic operated
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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
- G21F9/04—Treating liquids
- G21F9/06—Processing
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- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Measurement Of Radiation (AREA)
Abstract
The invention discloses a kind of recyclable devices of surabaya in molecular sieve, the recyclable device heats parsing by the molecular sieve to absorption surabaya in mol sieve reactors, it is passed through water-vapor exchange carrier band simultaneously, the mixed gas of generation is passed through condensation collection unit 11 and is collected to surabaya, export gas, tritium level is monitored, qualified discharge is not up to standard, returns again to processing until qualified discharge.The present invention realizes the recycling of surabaya in molecular sieve, while the pollution for realizing molecular sieve degrades or even solution control, and the recycling and molecular sieve pollution for meeting surabaya degrade；It heat-resisting water permeable membrane is installed before mol sieve reactors air inlet and outlet solves system pipeline and be easy to blockage problem；The recycling efficiency that steam carrier band improves surabaya is carried out by addition purging humidifying unit, reduces the intake dosage and environmental emission amount of staff；The recycling of surabaya suitable for the molecular sieves of absorption surabaya caused by fields such as nuclear power station, tritium target production, accelerator for neutron production production, the elimination of nuclear facilities and fusion energy resource research.
Description
Technical field
The invention belongs to radiation protection and environmental protection technical fields, and in particular to the recycling dress of surabaya in a kind of molecular sieve
It sets.
Background technique
Tritium (3H or T, is called superheavy hydrogen) be hydrogen radioactive isotope, be important fusion nuclear fuel and non-powered
One of widely applied radioactive isotope of nuclear technology field.Except in tritium system, molecular screen material is used as going for water in tritium
It removes.In detritiation and tritium recyclable device, purification system purifies tritium gas by hydronic metal catalytic bed, and free tritium is in conjunction with oxygen
Tritiated water is generated, steam is cooled to room temperature, and water vapour condenses in systems.It is absorbed using molecular sieve, molecular sieve can be inhaled
Receipts reach 18 times of own wt of water, and the regeneration cycle that many kinds of molecular sieves can be used in detritiation uses.It is adsorbed in molecular sieve
Tritiated water do not have corrosivity, long-term storage will not damage hold-up vessel material in this way.Usually inhale surabaya molecule
Sieve is used as Solid Waste Treatment, and on the one hand this kind of processing mode is unfavorable for waste volume reduction, still further aspect is then the economy of processing
Cost improves, and wastes valuable tritium resource.At present both at home and abroad to the recycling of tritium primarily directed to the tritium gas of high concentration
UF membrane is carried out, technology path is then different, but generally converts hydrogen for deuterium tritium in hydrocarbon, water by various reactions
Gas further separates and recovers, and in conjunction with Pd/Ag UF membrane, improves the recovery efficiency and decontamination factor to deuterium tritium.German FzK
It includes UF membrane and catalysis two units of reaction-UF membrane that Capprice technique has successively been developed mainly in tritium laboratory, and in original
Catalysis exchange film reaction (Percat) unit is increased on the basis of technique, total tritium decontamination factor has reached 108。
On the one hand the research report that the molecular sieve there has been no to absorption surabaya external at present is handled, possible reason are
The molecular sieve amount of generation is little, still further aspect is in foreign countries, the standard of low-level radioactive waste processing and economic cost compared with
Want much lower in China.And in the nuclear industry in China and Application of Nuclear Technology practical application, usually used is all molecular sieve to tritium
Water is adsorbed, and is developed by the nuclear industry of many years and Application of Nuclear Technology, a large amount of absorption surabaya molecular sieve is produced, if to dividing
Surabaya in son sieve is recycled, and is monitored on-line, realizes recycling and reusing and the qualified discharge of tritium, then is able to achieve returning for surabaya
It receives and utilizes, solve the problems, such as that being related to tritium research processing at present needs a large amount of surabaya, and be able to achieve the degradation of molecular sieve solid waste
With reduction processing cost.Therefore carrying out processing to molecular sieve has important researching value and practical significance.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of recyclable devices of surabaya in molecular sieve.
The recyclable device of surabaya in molecular sieve of the invention, its main feature is that: the recyclable device includes molecular sieve reaction
It is device, pneumatic operated valve I, purging humidifying unit, pressure gauge, aspiration pump, condensation collection unit, pneumatic operated valve III, on-line measurement unit, pneumatic
Valve II and connecting pipe；There is inner cavity in the mol sieve reactors, the upper and lower surfaces of inner cavity are separately installed with heat-resisting
Water permeable membrane I and heat-resisting water permeable membrane II, the center of inner cavity are equipped with heating unit, the temperature of temperature sensor measurement inner cavity；
Its connection relationship is: the mol sieve reactors, pressure gauge, pneumatic operated valve I, aspiration pump, condensation collection unit,
Line measuring unit is connect with the entry sequence of pneumatic operated valve II, and pneumatic operated valve II is threeway, and the outlet I of pneumatic operated valve II and exhaust outlet connect
Logical, the outlet II of pneumatic operated valve II is connected to the entrance for purging humidifying unit, purges the outlet of humidifying unit from mol sieve reactors
Lower end be passed through the inner cavities of mol sieve reactors；The outlet for purging humidifying unit is located at the lower section of heat-resisting water permeable membrane II, pneumatic operated valve
II entrance is located at the lower section of heat-resisting water permeable membrane I；
The recyclable device course of work is as follows:
A. molecular sieve containing tritium passes through heat-resisting water permeable membrane I through gate valve from the feed inlet of mol sieve reactors and reacts into molecular sieve
The inner cavity of device；
B. water vapour is blown into mol sieve reactors by purging humidifying unit；
C. heating unit heats are opened, until the measured value of pressure gauge reaches preset value, the inner cavity of mol sieve reactors
Gas is containing tritium gas I；
D. pneumatic operated valve I is opened, enters condensation collection unit through aspiration pump containing tritium gas I and carries out condensing recovery, condensation is collected
What unit overflowed detects containing tritium gas II through on-line measurement unit, and reach discharge standard passes through pneumatic operated valve II containing tritium gas II
Outlet I is discharged into air；Not up to being purged by the outlet II of pneumatic operated valve II into air containing tritium gas II for discharge standard humidifies
Unit returns to mol sieve reactors together with water vapour, repeats step b-d, until reaching discharge standard containing tritium gas II.
The connecting pipe is EP grades of stainless steel pipes.
Ionisation chamber in the on-line measurement unit is that flow gas surveys tritium ionisation chamber.
The recyclable device of surabaya realizes the recycling of surabaya in molecular sieve containing tritium in molecular sieve of the invention, realizes simultaneously
The pollution of the molecular sieve containing tritium, which degrades, even solves control, meets the recycling and reusing of surabaya and the pollution of molecular sieve containing tritium degrades or solution
Control；The heat-resisting water permeable membrane installed at the outlet of the purging humidifying unit of mol sieve reactors and the entry position of pneumatic operated valve II solves
Connecting pipe is easy to blockage problem；The recycling effect that water vapour carrier band improves surabaya is carried out by addition purging humidifying unit
Rate reduces the intake dosage and environmental emission amount of tritium technique field personnel.The recycling of surabaya in molecular sieve of the invention
Device is suitable for the places generations such as nuclear power station, tritium target production, accelerator for neutron production production, the elimination of nuclear facilities and fusion energy resource research and contains
The recycling of surabaya in tritium molecular sieve.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the recyclable device of surabaya in molecular sieve of the invention；
In figure, the heat-resisting water permeable membrane I 6. of 1. mol sieve reactors, 2. feed inlet, 3. gate valve, 4. heating unit 5.
7. 9. pneumatic operated valve of heat-resisting II 8. pressure gauge of water permeable membrane, I 10. aspiration pump of temperature sensor, 11. condensation collection unit
12. 13. pneumatic operated valve II 14. of on-line measurement unit purges 15. pneumatic operated valve III of humidifying unit.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, the recyclable device of surabaya includes mol sieve reactors 1, pneumatic operated valve I 9, blows in molecular sieve of the invention
Sweep humidifying unit 14, pressure gauge 8, aspiration pump 10, condensation collection unit 11, pneumatic operated valve III 15, on-line measurement unit 12, pneumatic operated valve
II 13 and connecting pipe；There is inner cavity in the mol sieve reactors 1, the upper and lower surfaces of inner cavity are separately installed with heat-resisting
Water permeable membrane I 5 and heat-resisting water permeable membrane II 7, the center of inner cavity are equipped with heating unit 4, and temperature sensor 6 measures the temperature of inner cavity；
Its connection relationship is: the mol sieve reactors 1, pressure gauge 8, pneumatic operated valve I 9, aspiration pump 10, condensation are collected single
Member 11, on-line measurement unit 12 are connect with the entry sequence of pneumatic operated valve II 13, and pneumatic operated valve II 13 is threeway, and pneumatic operated valve II 13 goes out
Mouth I is connected to exhaust outlet, and the outlet II of pneumatic operated valve II 13 is connected to the entrance of purging humidifying unit 14, purging humidifying unit 14
Outlet is passed through the inner cavity of mol sieve reactors 1 from the lower end of mol sieve reactors 1；The outlet of humidifying unit 14 is purged positioned at heat-resisting
The lower section of water permeable membrane II 7, the entrance of pneumatic operated valve II 13 are located at the lower section of heat-resisting water permeable membrane I 5；Pneumatic operated valve III 15 is arranged in molecular sieve
Between reactor 1 and purging humidifying unit 14.
The recyclable device course of work is as follows:
A. molecular sieve containing tritium passes through heat-resisting water permeable membrane I 5 into molecular sieve through gate valve 3 from the feed inlet 2 of mol sieve reactors 1
The inner cavity of reactor 1；
B. water vapour is blown into mol sieve reactors 1 by purging humidifying unit 14；
C. it opens heating unit 4 to heat, until the measured value of pressure gauge 8 reaches preset value, the inner cavity of mol sieve reactors 1
Gas be containing tritium gas I；
D. pneumatic operated valve I 9 is opened, enters condensation collection unit 11 through aspiration pump 10 containing tritium gas I and carries out condensing recovery, condensation
What collector unit 11 overflowed detects containing tritium gas II through on-line measurement unit 12, and reach discharge standard passes through gas containing tritium gas II
The outlet I of dynamic valve II 13 is discharged into air；The not up to entrance of outlet II for passing through pneumatic operated valve II 13 containing tritium gas II of discharge standard
Air purging humidifying unit 14 returns to mol sieve reactors 1 together with water vapour, repeats step b-d, until reaching containing tritium gas II
To discharge standard.
The connecting pipe is EP grades of stainless steel pipes.
Ionisation chamber in the on-line measurement unit 12 is that flow gas surveys tritium ionisation chamber.
Embodiment 1
The 3.0Kg of molecular sieve containing tritium that certain system generates is crushed from the feed inlet 2 of mol sieve reactors 1 and is passed through through gate valve 3
Heat-resisting water permeable membrane enters the inner cavity of mol sieve reactors 1, and pneumatic operated valve I 9 and aspiration pump 10 are closed at this time；Then single to purging humidification
The water of member 14 is heated, and the water vapour of heating evaporation is blown into mol sieve reactors 1 by purging humidifying unit 14；It beats simultaneously
It opens heating unit 4 to be heated, keeps 0.5h after being heated to 300 DEG C, until the display of pressure gauge 8 reaches preset value, open pneumatic
Valve I 9 enters condensation collection unit 11 through aspiration pump 10 containing tritium gas and carries out condensing recovery, and what condensation collection unit 11 was overflowed contains
Tritium gas II is detected through on-line measurement unit 12, and the numerical value of detected value is shown as lower than detection limit (< 107Bq/L), reach discharge
Standard is directly discharged in atmosphere.
Embodiment 2
The 4.5Kg of molecular sieve containing tritium that certain system generates is crushed from the feed inlet 2 of mol sieve reactors 1 and is passed through through gate valve 3
Heat-resisting water permeable membrane enters the inner cavity of mol sieve reactors 1, and pneumatic operated valve I 9 and aspiration pump 10 are closed at this time；Then single to purging humidification
The water of member 14 is heated, and the water vapour of heating evaporation is blown into mol sieve reactors 1 by purging humidifying unit 14；It beats simultaneously
It opens heating unit 4 to be heated, keeps 0.5h after being heated to 300 DEG C, until the display of pressure gauge 8 reaches preset value, open pneumatic
Valve I 9 enters condensation collection unit 11 through aspiration pump 10 containing tritium gas and carries out condensing recovery, and what condensation collection unit 11 was overflowed contains
Tritium gas is detected through on-line measurement unit 12, and the numerical value of detected value is shown as lower than detection limit (< 107Bq/L), reach discharge mark
Standard is directly discharged in atmosphere.
The present invention is not limited to above-mentioned specific embodiment, person of ordinary skill in the field from the above idea,
Without creative labor, made various transformation are within the scope of the present invention.
Claims (3)
1. the recyclable device of surabaya in a kind of molecular sieve, it is characterised in that: the recyclable device includes mol sieve reactors
(1), pneumatic operated valve I (9), purging humidifying unit (14), pressure gauge (8), aspiration pump (10), condensation collection unit (11), pneumatic operated valve
III (15), on-line measurement unit (12), pneumatic operated valve II (13) and connecting pipe；There is inner cavity in the mol sieve reactors (1),
The upper and lower surfaces of inner cavity are separately installed with heat-resisting water permeable membrane I (5) and heat-resisting water permeable membrane II (7), the center installation of inner cavity
Have heating unit (4), temperature sensor (6) measures the temperature of inner cavity；
Its connection relationship is: the mol sieve reactors (1), pressure gauge (8), pneumatic operated valve I (9), aspiration pump (10), condensation are received
Collection unit (11), on-line measurement unit (12) are connect with the entry sequence of pneumatic operated valve II (13), and pneumatic operated valve II (13) is threeway, gas
The outlet I of dynamic valve II (13) is connected to exhaust outlet, and the outlet II of pneumatic operated valve II (13) and the entrance of purging humidifying unit (14) connect
Logical, purging the outlet of humidifying unit (14), by pneumatic operated valve III (15) to be passed through molecular sieve from the lower end of mol sieve reactors (1) anti-
Answer the inner cavity of device (1)；The outlet of purging humidifying unit (14) is located at the lower section of heat-resisting water permeable membrane II (7), pneumatic operated valve II (13)
Entrance is located at the lower section of heat-resisting water permeable membrane I (5).
2. the recyclable device of surabaya in molecular sieve according to claim 1, it is characterised in that: the connecting pipe is EP
Grade stainless steel pipes.
3. the recyclable device of surabaya in molecular sieve according to claim 1, it is characterised in that: the on-line measurement unit
(12) ionisation chamber in is that flow gas surveys tritium ionisation chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710247048.6A CN106971766B (en) | 2017-04-17 | 2017-04-17 | The recyclable device of surabaya in a kind of molecular sieve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710247048.6A CN106971766B (en) | 2017-04-17 | 2017-04-17 | The recyclable device of surabaya in a kind of molecular sieve |
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| CN106971766A CN106971766A (en) | 2017-07-21 |
| CN106971766B true CN106971766B (en) | 2019-01-15 |
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| CN201710247048.6A Expired - Fee Related CN106971766B (en) | 2017-04-17 | 2017-04-17 | The recyclable device of surabaya in a kind of molecular sieve |
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| CN111128428A (en) * | 2020-01-22 | 2020-05-08 | 中国工程物理研究院核物理与化学研究所 | Tritium tail gas rapid collecting and processing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206726787U (en) * | 2017-04-17 | 2017-12-08 | 中国工程物理研究院核物理与化学研究所 | The retracting device of HTO in a kind of molecular sieve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2008224275A (en) * | 2007-03-09 | 2008-09-25 | Japan Atomic Energy Agency | Lithium recovering method and apparatus, and ceramic material manufactured from recovered lithium |
| WO2016073434A1 (en) * | 2014-11-04 | 2016-05-12 | Savannah River Nuclear Solutions, Llc | Recovery of tritium from molten lithium blanket |
| WO2017006973A1 (en) * | 2015-07-06 | 2017-01-12 | 株式会社フォワードサイエンスラボラトリ | Method for recovering tritium from tritium absorber, and method for reusing as absorber |
| JP6675562B2 (en) * | 2015-08-11 | 2020-04-01 | 株式会社フォワードサイエンスラボラトリ | Tritium absorber, method for separating tritium from heavy water |
| CN204891541U (en) * | 2015-09-02 | 2015-12-23 | 中国工程物理研究院材料研究所 | Tritiated water recovery unit |
| CN205582518U (en) * | 2016-03-25 | 2016-09-14 | 中国工程物理研究院材料研究所 | System for be used for realizing that water removes tritiation removal |
| CN105976884B (en) * | 2016-06-29 | 2017-11-07 | 中国工程物理研究院材料研究所 | The processing unit and processing method of a kind of tritium-containing liquid waste |
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| CN206726787U (en) * | 2017-04-17 | 2017-12-08 | 中国工程物理研究院核物理与化学研究所 | The retracting device of HTO in a kind of molecular sieve |
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