CN103337269B - A kind of glove box for dry method aftertreatment - Google Patents
A kind of glove box for dry method aftertreatment Download PDFInfo
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- CN103337269B CN103337269B CN201310280108.6A CN201310280108A CN103337269B CN 103337269 B CN103337269 B CN 103337269B CN 201310280108 A CN201310280108 A CN 201310280108A CN 103337269 B CN103337269 B CN 103337269B
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Abstract
The invention belongs to nuclear fuel post-processing technology field, disclose a kind of glove box for dry method aftertreatment.This glove box is primarily of main tank, odd-side, atmosphere control device, refuse transporter, aerosol fillter, automatic pressure control device composition, wherein odd-side and refuse transporter lay respectively at the both sides of main tank, odd-side and main tank are tightly connected, there is hermatic door between two casees, open and close hermatic door and can realize being communicated with of main tank and odd-side respectively and separate; The front of main tank is equipped with two or more gloves hole; Main tank is inside and outside is all provided with aerosol fillter, and this filtrator lays respectively at air intake opening top, bottom, gas outlet and exhausr port bottom.This device can control inert atmosphere and make inert gas in glove box Inner eycle, high efficiency filter radioaerosol and can meet low water, hypoxemia requirement.
Description
Technical field
The invention belongs to nuclear fuel post-processing technology field, be specifically related to a kind of glove box for dry method aftertreatment.
Background technology
Nuclear fuel aftertreatment comprises dry method aftertreatment and water law aftertreatment, its operating process often needs to carry out in glove box, current industrialized water law post-processing technology because of its research system be aqueous solution, working environment is atmospheric atmosphere, the glove box adopted is tiny structure atmospheric atmosphere glove box, in order to reduce the accumulation of radioaerosol in glove box, the mode constantly changing gas in case is generally taked to realize.Therefore, its topmost design objective is rate of ventilation.And the research system of dry method aftertreatment is high-temperature molten salt system, relate generally to the high-temperature operation of the very strong molten chloride of the very strong uranium of chemical activity, plutonium metal and water absorptivity, under hot conditions, uranium, plutonium metal very easily with the water in air and oxygen generation chemical reaction.In addition, molten chloride absorbs difficulty and the danger that moisture also will increase high-temperature operation, and causes the hydrolysis of uranium, plutonium, thus the yield of reduction uranium, plutonium and purity.Therefore, dry method aftertreatment should be carried out having in the glove box that good inert atmosphere (water, oxygen content are all less than 5ppm) protects.
Current dry method glove box generally realizes inert atmosphere protection by following two kinds of methods: the first continues to use water law glove box mentality of designing, adopts replacing inert gas continuously to realize inert atmosphere protection; The second adopts sealed inert atmosphere protection, obtains low water, hypoxemia and tiny structure environment by interval ventilation.But in the atmosphere that these two kinds of modes obtain, water, oxygen content are generally all higher than hundreds of ppm, are difficult to the requirement meeting uranium, plutonium high-recovery.Wherein, method one adopts continuous ventilation, wastes a large amount of argon gas, takes away amount of heat in case, and adds Spent Radioactive tolerance; Though method two takes seal approach, the purification plant of water, oxygen and radioaerosol under shortage sealed environment, needs frequently take a breath effectively to reduce radioaerosol in glove box.In addition, ventilation continuously and the glove box of frequent ventilation is adopted all not to be suitable for the dry method aftertreatment experiment relating to radiomaterial powder or fine particle operation.
Summary of the invention
(1) goal of the invention
Problem existing for prior art, the invention provides a kind ofly can to control inert atmosphere, high efficiency filter radioaerosol and the glove box for dry method aftertreatment of low water, hypoxemia requirement can be met.
(2) technical scheme
In order to solve the problem existing for prior art, the present invention is achieved by the following technical solutions:
A kind of glove box for dry method aftertreatment, this glove box is primarily of main tank, odd-side, atmosphere control device, refuse transporter, aerosol fillter, automatic pressure control device composition, wherein odd-side and refuse transporter lay respectively at the both sides of main tank, odd-side and main tank are tightly connected, there is hermatic door between two casees, open and close hermatic door and can realize being communicated with of main tank and odd-side respectively and separate; The front of main tank is equipped with two or more gloves hole; Main tank is inside and outside is all provided with aerosol fillter, and this filtrator lays respectively at air intake opening top, bottom, gas outlet and exhausr port bottom.
Preferably, described atmosphere control device is made up of atmosphere controller and steel cylinder, wherein steel cylinder is built with inert gas, atmosphere controller comprises blower fan and decontaminating column, the aerosol fillter of air-blower control inert gas successively through air intake opening, air intake opening top, the aerosol fillter of bottom, gas outlet, gas outlet, then enter after decontaminating column in atmosphere controller and blower fan through pipeline, again enter main tank Inner eycle; Decontaminating column comprises copper catalyst and molecular sieve, oxygen, water respectively in decontamination cycle gas.
Preferably, inert gas air intake opening and gas outlet lay respectively at the diagonal angle place of main tank, and wherein air intake opening is positioned at bottom main tank.
Preferably; be tightly connected in the below of main tank casing a high temperature resistant well formula protection cylinder, and this protection cylinder periphery is furnished with the well-type electric furnace for heating, and protection cylinder is positioned at electric stove hearth; treat that in the sample disc of melting material level bottom protection cylinder, sample disc can be moved upward in main tank.
Preferably, above main tank top center and well formula protection cylinder, place is equipped with cooler pan.
Preferably, described refuse transporter comprises the sealing cover body that is arranged on main tank side, and a waste transfer bucket independently with lid, and two lids all have sealing rubber ring; Two lids are made to closely cooperate as combination lid by the mode rotating waste transfer bucket crush seal rubber ring; Combine lid after closely cooperating can open, material in main tank is transferred in waste transfer bucket; After completing waste transfer, combination lid is shut, and by reverse rotation waste transfer bucket by two lids separately.
Preferably, main tank is also furnished with pressure automatic control system, this system comprises pressure transducer, digital display monitor, solenoid valve, to set in main tank pressure as-200Pa ~-400Pa, when pressure in main tank departs from setup pressure value scope, pressure automatic control system carries out tonifying Qi or venting by automatically starting solenoid valve, to realize in main tank pressure arranging in scope.
Preferably, the in-built inert gas of described steel cylinder is argon gas.
(3) beneficial effect
Adopt a kind of glove box for dry method aftertreatment provided by the invention, this glove box can meet the requirement of sample needs high-temperature fusion and inert gas shielding in dry method post-processing operation process, and it has the following advantages:
(1) make working gas at glove box Inner eycle, saved the consumption of inert gas on the one hand, decrease the discharge capacity of radioactive emission on the other hand; Utilize the atmosphere control device that is arranged in gas inner loop pipeline, can water in continuous purification periodic duty gas and oxygen, the requirement to work atmosphere when meeting dry method post-processing operation; Utilize and be arranged on the aerosol fillter at air intake opening, gas outlet place, can radioaerosol in continuous filtration periodic duty gas; By periodic replacement filter element, the radioactive dosage suffered by operating personnel can be reduced.
(2) effectively can be realized the tiny structure working environment in glove box by pressure automatic control system in case, avoid gas in case and reveal in environment, improve the security of experiment operator.
(3) utilize the refuse transporter of this device, the transfer of radioactive waste can be carried out under the prerequisite not destroying inert ambient environment in glove box; And achieving the charging of glove box side, the unidirectional material transfer of side discharging, avoids the cross pollution that refuse causes from odd-side transfer again.
Accompanying drawing explanation
Fig. 1 is glove box schematic diagram;
1. main tank; 2. odd-side; 3. atmosphere controller; 4. electric furnace; 6. refuse transporter; 7. aerosol fillter; 8. cooler pan; 9. gloves hole; 10. digital display monitor; 11. steel cylinders; 12. solenoid valves; 13. exhausr ports; 14. air intake openings; 15. gas outlets; 16. sample disc.
Embodiment
Below in conjunction with specification drawings and specific embodiments, the present invention is further elaborated.
A kind of glove box for dry method aftertreatment, this glove box is primarily of main tank 1, odd-side 2, atmosphere control device, refuse transporter 6, aerosol fillter 7, automatic pressure control device composition, wherein odd-side 2 and refuse transporter 6 lay respectively at the both sides of main tank 1, odd-side 2 and main tank 1 are tightly connected, there is hermatic door between two casees, open and close hermatic door and can realize being communicated with of main tank 1 and odd-side 2 respectively and separate; The front of main tank 1 is equipped with two or more gloves hole 9; Main tank 1 is inside and outside is all provided with aerosol fillter 7, this filtrator lays respectively at air intake opening 14 top, bottom, gas outlet 15 and exhausr port 13 bottom, air intake opening 14 and gas outlet 15 lay respectively at the diagonal angle place of main tank 1, and wherein air intake opening 14 is positioned on the operation planar bottom main tank 1.
Preferably, described atmosphere control device is made up of atmosphere controller 3 and steel cylinder 11, wherein steel cylinder 11 is built with argon gas, atmosphere controller 3 comprises blower fan and decontaminating column, the aerosol fillter of air-blower control argon gas successively through air intake opening 14, air intake opening top, the aerosol fillter of bottom, gas outlet, gas outlet, then enter after decontaminating column in atmosphere controller 3 and blower fan through red copper pipeline, again enter main tank 1 Inner eycle; Decontaminating column comprises copper catalyst and molecular sieve, oxygen, water respectively in decontamination cycle gas.
Preferably; be tightly connected in the below of main tank 1 casing a high temperature resistant well formula protection cylinder, and this protection cylinder periphery is furnished with the well-type electric furnace for heating, and protection cylinder is positioned at electric stove hearth; treat that in the sample disc 16 of melting material level bottom protection cylinder, sample disc can be moved upward in main tank.
Preferably, above main tank 1 center of top and well formula protection cylinder, place is equipped with cooler pan 8.
Preferably, described refuse transporter 6 comprises the sealing cover body that is arranged on main tank side, and a waste transfer bucket independently with lid, and two lids all have sealing rubber ring; Two lids are made to closely cooperate as combination lid by the mode rotating waste transfer bucket crush seal rubber ring; Combine lid after closely cooperating can open, material in main tank is transferred in waste transfer bucket; After completing waste transfer, combination lid is shut, and by reverse rotation waste transfer bucket by two lids separately.
Preferably, main tank 1 is also furnished with pressure automatic control system, this system comprises pressure transducer, digital display monitor, solenoid valve, to set in main tank pressure as-200Pa ~-400Pa, when pressure in main tank departs from setup pressure value scope, pressure automatic control system carries out tonifying Qi or venting by automatically starting solenoid valve, to realize in main tank pressure arranging in scope.
The method of operating utilizing this device to carry out dry method post-processing operation is:
First carry out pressure parameter setting in glove box by the digital display controller of pressure automatic control system, make pressure in glove box be in tiny structure (-200Pa ~-400Pa) working environment.When in main tank, pressure is less than minimum setting value, system instruction can open the solenoid valve being connected to gas bomb automatically, utilizes pressure differential to carry out tonifying Qi in glove box, until pressure is closed after reaching minimum setting value automatically in case; When pressure in main tank be greater than the highest setup pressure value time, system instruction can open the solenoid valve and vacuum pump that are connected to exhausr port automatically, and the power utilizing vacuum pump to provide outwards is vented, until automatically close after the highest setting value of pressure recover in case.
Start " circulation " instruction on digital display controller, namely atmosphere control device is opened.Atmosphere control device mainly comprises blower fan and controller, and wherein blower fan provides power for gas Inner eycle, and the copper catalyst in decontaminating column and molecular sieve can distinguish oxygen contained in decontamination cycle gas and water.Water, oxygen content in digital display controller Real-Time Monitoring work atmosphere.Radioaerosol in recyclegas is by the radioaerosol filter traps at gas outlet in case and air intake opening place, and periodic replacement filter element, reduces the radioactivity irradiation of operating personnel.
Material is introduced by odd-side.When introducing material, the hermatic door (inner door) between odd-side and main tank is in closed condition, and keeps tiny structure (~ 300Pa) in odd-side; Open odd-side outer door, material is introduced odd-side; Close odd-side outer door, applying argon gas cleaning odd-side; Close cleaning argon gas, open the equalizing valve of odd-side and main tank, make the pressure equilibrium in two casees; Finally open odd-side inner door, material is transferred in main tank from odd-side.
In experimentation, first will treat that fused materials (research material) puts into the sample disc bottom protection cylinder, and start heating by electric cooker melting materials capable, and carry out corresponding experiment.For the impact that the heat produced in minimizing heating by electric cooker process brings instrument and experimental implementation; in protection cylinder upper end and main tank top center, cooler pan is installed, takes away the heat bottom glove box in operation planar and case in gas by refrigeration machine Inner eycle cooling medium.
The refuse produced in experimentation is shifted by refuse transporter.The main tank hermatic door of the waste transfer bucket of band lid with band lid is docked, realize closely cooperating by the sealing rubber ring on rotary squeezing two lids, combination lid is opened again from main tank inside, material in main tank is transferred in waste transfer bucket, after completing waste transfer, combination lid is shut, and by reverse rotation waste transfer bucket mode by two lids separately.Utilize refuse transporter, the transfer of radioactive waste can be carried out under the prerequisite not destroying inert ambient environment in glove box, and avoid refuse and again shift the cross pollution caused from odd-side.
Claims (8)
1. the glove box for dry method aftertreatment, it is characterized in that, this glove box is primarily of main tank, odd-side, atmosphere control device, refuse transporter, aerosol fillter, automatic pressure control device composition, wherein odd-side and refuse transporter lay respectively at the both sides of main tank, odd-side and main tank are tightly connected, there is hermatic door between two casees, open and close hermatic door and can realize being communicated with of main tank and odd-side respectively and separate; The front of main tank is equipped with two or more gloves hole; Main tank is inside and outside is all provided with aerosol fillter, and this filtrator lays respectively at air intake opening top, bottom, gas outlet and exhausr port bottom.
2. a kind of glove box for dry method aftertreatment according to claim 1, it is characterized in that, described atmosphere control device is made up of atmosphere controller and steel cylinder, wherein steel cylinder is built with inert gas, atmosphere controller comprises blower fan and decontaminating column, the aerosol fillter of air-blower control inert gas successively through air intake opening, air intake opening top, the aerosol fillter of bottom, gas outlet, gas outlet, then enter after decontaminating column in atmosphere controller and blower fan through pipeline, again enter main tank Inner eycle; Decontaminating column comprises copper catalyst and molecular sieve, oxygen, water respectively in decontamination cycle gas.
3. a kind of glove box for dry method aftertreatment according to claim 2, is characterized in that, described air intake opening and gas outlet lay respectively at the diagonal angle place of main tank, and wherein air intake opening is positioned at bottom main tank.
4. a kind of glove box for dry method aftertreatment according to claim 1; it is characterized in that; be tightly connected in the below of main tank casing a high temperature resistant well formula protection cylinder; this protection cylinder periphery is furnished with the well-type electric furnace for heating; protection cylinder is positioned at electric stove hearth; treat that in the sample disc of melting material level bottom protection cylinder, sample disc can be moved upward in main tank.
5. a kind of glove box for dry method aftertreatment according to claim 1 or 4, is characterized in that, above main tank top center and well formula protection cylinder, place is equipped with cooler pan.
6. a kind of glove box for dry method aftertreatment according to claim 1, it is characterized in that, described refuse transporter comprises the sealing cover body that is arranged on main tank side, and a waste transfer bucket independently with lid, and two lids all have sealing rubber ring; Two lids are made to closely cooperate as combination lid by the mode rotating waste transfer bucket crush seal rubber ring; Combine lid after closely cooperating can open, material in main tank is transferred in waste transfer bucket; After completing waste transfer, combination lid is shut, and by reverse rotation waste transfer bucket by two lids separately.
7. a kind of glove box for dry method aftertreatment according to claim 1, it is characterized in that, main tank is also furnished with pressure automatic control system, this system comprises pressure transducer, digital display monitor, solenoid valve, to set in main tank pressure as-200Pa ~-400Pa, when pressure in main tank departs from setup pressure value scope, pressure automatic control system carries out tonifying Qi or venting by automatically starting solenoid valve, to realize in main tank pressure arranging in scope.
8. a kind of glove box for dry method aftertreatment according to claim 2, is characterized in that, the in-built inert gas of described steel cylinder is argon gas.
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| CN201310280108.6A CN103337269B (en) | 2013-07-05 | 2013-07-05 | A kind of glove box for dry method aftertreatment |
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| CN201310280108.6A CN103337269B (en) | 2013-07-05 | 2013-07-05 | A kind of glove box for dry method aftertreatment |
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| CN103337269B true CN103337269B (en) | 2015-07-29 |
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| US5464988A (en) * | 1994-11-23 | 1995-11-07 | The United States Of America As Represented By The Department Of Energy | Tritium waste package |
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