CN205789140U - A kind of underground nuclear power station ultrasonic air filter - Google Patents
A kind of underground nuclear power station ultrasonic air filter Download PDFInfo
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- CN205789140U CN205789140U CN201620664526.4U CN201620664526U CN205789140U CN 205789140 U CN205789140 U CN 205789140U CN 201620664526 U CN201620664526 U CN 201620664526U CN 205789140 U CN205789140 U CN 205789140U
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- nuclear power
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Abstract
The utility model discloses a kind of underground nuclear power station ultrasonic air filter, including cylinder, described inner barrel fills working solvent, cylinder body bottom is provided with ultrasonic array probe group, top is provided with steam-water separator, hyperbolic inwall it is provided with in the middle part of cylinder, inner barrel is divided into ultrasonic atomizatio district by hyperbolic inwall from bottom to up, hyperbolic Guan Hou district and atomization mixed zone, the cylinder inboard wall in ultrasonic atomizatio district is provided with the air inlet pipe of input radgas and discharges the blow-off pipe of the residual stain of solution, working solvent liquid level in cylinder is higher than air inlet pipe, gas after the upper outlet of steam-water separator will be filtered by exhaustor discharges cylinder.This utility model utilizes ultrasonic atomization effect and condensation nucleation, is trapped in working solution by the radioactive particulate contained, reaches to filter radioactive purpose in air.Simultaneously as working solution circulates in confined space, therefore, working solution can be recycled, and saves solution usage, and the radioactive contaminant of generation is less.
Description
Technical field
This utility model relates to nuclear power technology, in particular to a kind of underground nuclear power station ultrasonic air filter.
Background technology
Nuclear power station is anticipated by when occurring superpressure to lose efficacy at containment, discharges the gas in Partial security shell in a controlled manner
Can reach the purpose of decompression.This measure avoids the integrity that containment causes because of superpressure to lose, and radioactive can not
Control discharge.In current ground nuclear power station, the pressure release filtration to containment mainly has dry filter and wet filter two class.
Typically using sand beds in dry filter, as a example by France's sand beds, this filter type uses granularity
The air that pressure release is discharged by the sand stone layer of 0.6mm carries out machinery removal, reaches the purpose filtered.This filter type is to safety
Shell in early days superpressure is inoperative, and after coming into operation, sand stone layer forms extra radiation source, processes to the later stage and maintenance brings pole
Big inconvenience.
Wet filter typically uses filter to filter, and as a example by Siemens's wet scrubbing filter, this filter type uses
The mode of sliding pressure operation, is mixed containment aerofluxus with cleaning mixture by Venturi effect, reaches the purpose filtered.This filtration
Mode is inconspicuous in accident early stage and later stage filter effect, and owing to Venturi tube structure is fixed, to different size of radioactivity
Grain filter effect is different.The high granule only for a certain particular size of filter efficiency.
Underground nuclear power station is relative to ground nuclear power station, and many one subterranean body barriers, its safety is higher.But sternly
In weight accident and accident subsequent treatment, underground nuclear power station underground chamber cavity remains a need for filtering exhaust.Dry filter and wet type
Filter effect all existing defects of two kinds of filter types.
Summary of the invention
The purpose of this utility model is to overcome the weak point of above-mentioned existing background technology, proposes a kind of underground nuclear power station
Ultrasonic air filter, utilizes ultrasonic atomization effect, and solvent mist is melted into micron order microgranule, makes atomized particles and radiological predication fallout plot
The granule such as dirt, fission fragment is fully contacted, and is allowed to be detained in a solvent, reaches to filter radioactive purpose.Meanwhile, utilize cold
Solidifying nucleation, with radioactive particle as the nuclei of condensation, forms drop, plays the purpose filtering radioactive particulate.
The purpose of this utility model is reached by following measure: a kind of underground nuclear power station ultrasonic air filter,
Including cylinder, described inner barrel fills working solvent, and it is characterized in that, described cylinder body bottom is provided with supersonic array and visits
Head group, top are provided with steam-water separator, are provided with hyperbolic inwall in the middle part of described cylinder, described hyperbolic inwall by inner barrel from
Under supreme be divided into ultrasonic atomizatio district, hyperbolic Guan Hou district and atomization mixed zone, the cylinder inboard wall in described ultrasonic atomizatio district is arranged
Have input radgas air inlet pipe and discharge the residual stain of solution blow-off pipe, the working solvent liquid level in described cylinder be higher than into
Trachea, the gas after the upper outlet of described steam-water separator will be filtered by exhaustor discharges cylinder.
In technique scheme, described hyperbolic inwall is the hyperbolic-type inwall protruded inwardly from, and inner wall surface is smooth, side
Just condensing the globule to flow down, inwall material can be the materials such as rustless steel.
In technique scheme, described ultrasonic array probe group uses high frequency ultrasound concussion probe group, probe group surface
For small vesicular texture, aperture is 1～3 micron, and atomizing effect is optimal.
The underground nuclear power station ultrasonic air filter that this utility model provides utilizes ultrasonic atomization effect and condensation coring
Effect, is trapped in the radioactive particulate contained in air in working solution, reaches to filter radioactive purpose.Simultaneously as
Working solution circulates in confined space, and therefore, working solution can be recycled, and saves solution usage, and the radioactivity of generation is dirty
Dye thing is less.Special hyperbolic interior wall construction is arranged, and promotes small water smoke and the radioactive dust of air, fission fragment etc.
Grain is mutually mixed, and collides, the process such as combination so that radioactive particulate is gathered in during water smoke drips, not big by radioactive grain
Little restriction, good filtration effect, efficiency are high.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model a kind of underground nuclear power station ultrasonic air filter；
In figure: 1. cylinder, 2. hyperbolic inwall, 3. working solvent liquid level, 4. ultrasonic atomizatio district, 5. hyperbolic Guan Hou district, 6. mist
Change mixed zone, 7. ultrasonic array probe group, 8. air inlet pipe, 9. steam-water separator, 10. exhaustor, 11. liquid-feeding tubes, 12. liquid-feeding tubes
Isolating valve, 13. blow-off pipes, 14. blow-off pipe isolating valves, 15. leve monitors.
Detailed description of the invention
Below in conjunction with the accompanying drawings and this utility model is described in further detail by embodiment, but this embodiment should not be understood
For to restriction of the present utility model.
This utility model one underground nuclear power station ultrasonic air filter is as it is shown in figure 1, include cylinder 1, be arranged at cylinder 1
The ultrasonic array probe group 7 of bottom and the steam-water separator 9 being arranged at cylinder 1 top.Hyperbolic inwall 2 it is provided with in the middle part of cylinder 7,
Hyperbolic inwall 2 is the hyperbolic-type inwall protruded inwardly from, and inner wall surface is smooth.Hyperbolic inwall 2 depends on from bottom to up by internal for cylinder 7
Secondary be divided into ultrasonic atomizatio district 4, hyperbolic Guan Hou district 5 and atomization mixed zone 6.Working solvent is filled, such as sodium thiosulfate etc. in cylinder 1.
Working solvent liquid level 3 is on ultrasonic array probe group 7 and air inlet pipe 8 entrance.Outside the cylinder 1 on working solvent liquid level 3 top
It is provided with liquid-feeding tube 11, it is connected with liquid-feeding tube isolating valve 12.Blow-off pipe 13 is set bottom cylinder 1, on it connect blow-off pipe every
From valve 14.Leve monitor 15, working solvent liquid level in monitoring cylinder 1 are set outside cylinder 1.Cylinder 1 top arranges row
Trachea 10, the gas after the upper outlet of steam-water separator 9 will be filtered by exhaustor 10 discharges cylinder 1.
When underground nuclear power station ultrasonic air filter runs, entering from air inlet pipe 8 containing radioactive air, supersonic array is visited
Head group 7 sends ultrasonic, and ultrasonic array probe group 7 uses high frequency ultrasound to shake probe group, and probe group surface is small cellular
Structure, aperture is 1～3 micron.Working solvent is atomized into 1～3 micron micro-by ultrasonic array probe group 7 in ultrasonic atomizatio district 4
Little water smoke.In hyperbolic Guan Hou district 5, due to pipe larynx structure both shrinks, small water smoke and the radioactive dust of air, fission fragment etc.
Granule is mutually mixed, and collides, the process such as combination so that radioactive particulate is gathered in during water smoke drips.Wherein, radioiodine is micro-
Grain reacts with the sodium thiosulfate in water smoke, forms iodide ion, so that radioiodine is detained in the solution.On the other hand, super
Sound atomizing forms substantial amounts of small water smoke, makes liquid surface area increase greatly, forms saturated steam in cylinder 1,
After entering atomization mixed zone 6, owing to hyperbolic inwall 2 structure is expanded, volume of air expands pressure and reduces, and saturation vapour is with radioactivity
Occur centered by microgranule to condense nucleation, form the water smoke with radioactive particulate as the nuclei of condensation.At steam-water separator 9, contain
The water smoke of radioactive particulate is formed through steam-water separation and carries radioactive water droplet to flow down along hyperbolic inwall 2, carries out next step circulation.
The air being cleaned the after filtering exhaustor 10 from cylinder 1 top is discharged.
Running through one period of long period, in cylinder 1, working solvent gradually decreases, by leve monitor 15 monitoring
Solvent level, if liquid level reduces, can add working solvent by liquid-feeding tube 11 in cylinder 1.In long-play, cylinder 1
Working solvent because of filter more radioactive particulate, its radioactive level increases, can by arrange blow-off pipe 13 take out cylinder 1
Interior working solvent carries out subsequent treatment, meanwhile, adds new working solvent from liquid-feeding tube 11.
Other unspecified part is prior art.
Claims (4)
1. a underground nuclear power station ultrasonic air filter, including cylinder (1), described cylinder (1) is internal fills working solvent, its
It is characterised by: described cylinder (1) bottom is provided with ultrasonic array probe group (7), top is provided with steam-water separator (9), described
Cylinder (7) middle part is provided with hyperbolic inwall (2), and cylinder (7) inside is divided into ultrasonic by described hyperbolic inwall (2) from bottom to up
Range of atomization (4), hyperbolic Guan Hou district (5) and atomization mixed zone (6), cylinder (1) inwall of described ultrasonic atomizatio district (4) is provided with defeated
Enter the air inlet pipe (8) of radgas and discharge the blow-off pipe (13) of the residual stain of solution, the working solvent liquid level in described cylinder (1)
(3) higher than air inlet pipe (8), the gas after the upper outlet of described steam-water separator (9) will be filtered by exhaustor (10) is discharged
Cylinder (1).
A kind of underground nuclear power station ultrasonic air filter the most according to claim 1, it is characterised in that: described hyperbolic inwall
(2) for the hyperbolic-type inwall protruded inwardly from, inner wall surface is smooth.
A kind of underground nuclear power station ultrasonic air filter the most according to claim 1, it is characterised in that: described cylinder (1)
Outside arranges leve monitor (15), the height of monitoring cylinder (1) interior working solvent liquid level (3).
A kind of underground nuclear power station ultrasonic air filter the most according to claim 2, it is characterised in that: described supersonic array
Probe group (7) uses high frequency ultrasound concussion probe group, and probe group surface is small vesicular texture, and aperture is 1～3 micron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620664526.4U CN205789140U (en) | 2016-06-28 | 2016-06-28 | A kind of underground nuclear power station ultrasonic air filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620664526.4U CN205789140U (en) | 2016-06-28 | 2016-06-28 | A kind of underground nuclear power station ultrasonic air filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205789140U true CN205789140U (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620664526.4U Active CN205789140U (en) | 2016-06-28 | 2016-06-28 | A kind of underground nuclear power station ultrasonic air filter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957572A (en) * | 2016-06-28 | 2016-09-21 | 长江勘测规划设计研究有限责任公司 | Ultrasonic air filter for underground nuclear power station |
-
2016
- 2016-06-28 CN CN201620664526.4U patent/CN205789140U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957572A (en) * | 2016-06-28 | 2016-09-21 | 长江勘测规划设计研究有限责任公司 | Ultrasonic air filter for underground nuclear power station |
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