CN109273126A - Nuclear power plant's high efficiency particulate air filter shell and its method of recycling - Google Patents
Nuclear power plant's high efficiency particulate air filter shell and its method of recycling Download PDFInfo
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- CN109273126A CN109273126A CN201710585949.6A CN201710585949A CN109273126A CN 109273126 A CN109273126 A CN 109273126A CN 201710585949 A CN201710585949 A CN 201710585949A CN 109273126 A CN109273126 A CN 109273126A
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- high efficiency
- particulate air
- efficiency particulate
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000004064 recycling Methods 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 46
- 238000003904 radioactive pollution Methods 0.000 claims abstract description 37
- 238000011109 contamination Methods 0.000 claims description 20
- 230000005855 radiation Effects 0.000 claims description 20
- 229920002050 silicone resin Polymers 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 231100000241 scar Toxicity 0.000 claims description 4
- 239000000565 sealant Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000005202 decontamination Methods 0.000 claims description 3
- 230000003588 decontaminative effect Effects 0.000 claims description 3
- 238000012797 qualification Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims 1
- 239000011521 glass Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000008901 benefit Effects 0.000 abstract description 9
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 239000002901 radioactive waste Substances 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 abstract description 4
- 239000000243 solution Substances 0.000 description 38
- 238000005259 measurement Methods 0.000 description 13
- 238000009434 installation Methods 0.000 description 9
- 238000001914 filtration Methods 0.000 description 8
- 239000007767 bonding agent Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000004992 fission Effects 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 4
- 238000011045 prefiltration Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 230000002285 radioactive effect Effects 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229910052778 Plutonium Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000004087 circulation Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000003758 nuclear fuel Substances 0.000 description 2
- OYEHPCDNVJXUIW-UHFFFAOYSA-N plutonium atom Chemical compound [Pu] OYEHPCDNVJXUIW-UHFFFAOYSA-N 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005025 nuclear technology Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000941 radioactive substance Substances 0.000 description 1
- 239000012086 standard solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- 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
-
- 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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a kind of nuclear power plant's high efficiency particulate air filter shell and its method of recycling, the method for nuclear power plant's high efficiency particulate air filter shell recycling includes the following steps: to split the filter plate filtered on the high efficiency particulate air filter shell after use and mounting plate；Filter material on filter plate is peeled away；The radioactive pollution of filter plate and mounting plate is measured respectively；If the radioactive pollution of filter plate is less than solution control value, filter plate is bonded new filter material and is assembled into new high efficiency particulate air filter shell reuse；If the radioactive pollution of mounting plate is less than solution control value, mounting plate is assembled into new high efficiency particulate air filter shell and reuses.Inventory and replacement cost have been saved, the production cycle is also shortened, has improved production efficiency；High efficiency particulate air filter shell is reused, the volume of radioactive waste can be reduced, fully demonstrates environmental benefit, and to the responsibility that society takes on, and certain economic benefit can be generated；It is significant to protection environment, reduction radioactive pollution simultaneously.
Description
Technical field
The present invention relates to the repetition of nuclear power plant's spare part recyclings, and in particular to a kind of nuclear power plant's high efficiency particulate air filter shell and
Its method reused.
Background technique
Nuclear power station (nuclear power plant) is also known as nuclear power plant, be using nuclear fission (Nuclear Fission) or
Nuclear fusion (Nuclear Fusion) reacts the power plant of discharged energy production electric energy.Nuclear energy hair in business operating at present
Power plant is all to be reacted and generated electricity using nuclear fission.Nuclear power station is generally divided into two parts: utilizing the core of nuclear fission production steam
Island (including reactor assembly and primary Ioops system) and the conventional island (including steam turbine generator system) for utilizing steam-electric power use
Fuel be usually radioactivity heavy metal: uranium, plutonium.
The energy that fuel fission process releases takes energy and pass out of by the coolant recycled in reactor
It is defeated to generate steam to drive turbine and drive electrical power generators to boiler.Nuclear power station is the electricity of a kind of high-energy, few feed consumption
It stands.By taking a generated energy is 1,000,000 kilowatts of power station as an example, if burning coal, 7000~8000 tons of coal or so, 1 year need to be consumed daily
Consume more than 200 ten thousand tons.If using nuclear power station instead, annual only to consume 1.5 tons of fissioning uraniums or plutonium, once reloading can be continuous with full power
Operation 1 year.The transport and storage problem of power station fuel can be greatly reduced.In addition, nuclear fuel is in reactor combustion process
In, while new nuclear fuel can also be produced.Nuclear power station capital expenditure is high, but fuel cost is lower, and cost of electricity-generating is relatively low, and
Pollution can be reduced.By the end of the year 1986, has 28 countries and regions in the world and built up 397 nuclear power stations.According to International Atomic
The statistics of energy mechanism will have 58 countries and regions to build nuclear power stations at the beginning of expecting 21 century, and power station sum is up to 1000,
Installed capacity is up to 800,000,000 kilowatts, and nuclear power production will account for the 35% of total power generation.It can be seen that at considerably long one section from now on
In phase, nuclear power will become the main energy sources of power industry.
As nuclear technology utilizes, nuclear power station is fast-developing, according to nuclear power plant's function needs, control zone ventilating system is all configured
Pre- air filter.Filter is mainly used in the air cleaning system of nuclear power station as nuclear leve equipment, each to remove
The dust and radioactive grain of kind form.These prefilter strainers are run after a certain period of time, are all replaced, will be generated every year
A large amount of prefilter strainer, causes control zone waste to increase increasingly.Because this kind of waste is extremely low even without from useless containing radioactivity
Object minimizes and the reusable consideration of resource, particularly important to the processing of these extremely low radioactive wastes.
In common non-radiative environment, the prior art has the recoverying and utilizing method for air filter frame, such as specially
Sharp notification number is the patent of invention of CN103736338A, and which disclose a kind of leaf filters, and leaf filter is for sky
Gas filtering, and leaf filter is recycled, but the patent is used in non-radiative environment, filter is main
Dust in for filtering air, there is no radioactive substances, therefore the filter recoverying and utilizing method in the patent can not be applicable in
In the nuclear power plant with radioactive pollution particle, and it is different from high efficiency particulate air filter structure.
Summary of the invention
The application provides a kind of method of the nuclear power plant's high efficiency particulate air filter shell and its recycling of environmental protection and saving cost.
In a first aspect, a kind of method of nuclear power plant's high efficiency particulate air filter shell recycling is provided in a kind of embodiment, including
Following steps:
By filter use after high efficiency particulate air filter shell on filter plate and mounting plate split；
Filter material on filter plate is peeled away；
The radioactive pollution of filter plate and mounting plate is measured respectively；
If the radioactive pollution of filter plate is less than solution control value, filter plate is bonded new filter material and is assembled into new high efficiency particulate air filter shell
Body is reused；If the radioactive pollution of mounting plate is less than solution control value, mounting plate is assembled into new high efficiency particulate air filter shell weight
It is multiple to use.
Further, further include following steps: if the radioactive pollution of filter plate or mounting plate is greater than solution control value, abandoning back
Receive filter plate or mounting plate.
In other embodiments, further include following steps: carrying out performance inspection after the new filter material of high efficiency particulate air filter case bonding
It surveys, performance detection qualification is then reusable.
Further, filter plate heats removing filter material under subnormal ambient.
Further, it after filter plate removing filter material, is first cleaned, then measure radioactive pollution.
Further, radioactive pollution includes β surface contamination, and solution control value includes β solution control value.
Further, it is 0.4Bq/cm that β, which solves control value,2。
Further, radioactive pollution further includes γ radiation level, and solution control value further includes γ solution control value.
Further, it is 40nSv/h that γ, which solves control value,.
Further, if the β surface contamination of filter plate or mounting plate and γ radiation level are respectively smaller than β solution control value and γ solution control
Value, then filter plate or mounting plate re-assembly use.
Second aspect provides a kind of nuclear power plant's high efficiency particulate air filter shell in another embodiment, including before being mounted on
Filter plate of two pieces afterwards with filter opening and four pieces of mounting plates up and down are separately mounted to, and all plates are removable between each other
Installation is unloaded, is bonded with filter material on the filter plate.
Further, filter plate and mounting plate are made of stainless steel.
Further, filter material is the gusset made of combustion-proof glass fiber.
Further, gusset has constant spacing and preset strength.
Further, filter material is bonded on filter plate by sealant or silicone resin.
Further, sealant or silicone resin are radiation hardness and organosilicon resistant to high temperature.
The method of nuclear power plant's high efficiency particulate air filter shell and its recycling according to above-described embodiment, due to by high efficiency filter
It is first split after the filtering pollution of device shell, filter material is being removed to filter plate, and measure the radioactivity of filter plate and mounting plate respectively
Pollution, radiocontamination is no more than the filter plate for solving control value and mounting plate is just reusable, so that some without contaminated or pollution
Lesser filter plate and mounting plate are reusable, and filter plate and mounting plate are general part, can be with the filter of other high efficiency particulate air filter shells
Plate and mounting plate are reassembled into new high efficiency particulate air filter shell, have saved inventory and replacement cost, have also shortened high efficiency filter
The production cycle of device, improve production efficiency；High efficiency particulate air filter shell is reused, the volume of radioactive waste can subtract
It is few, environmental benefit is fully demonstrated, and to the responsibility that society takes on, and certain economic benefit can be generated；Simultaneously to protection ring
Border, reduction radioactive pollution are significant.
Detailed description of the invention
Fig. 1 is the step flow chart that nuclear power plant's high efficiency particulate air filter shell reuses the method utilized in a kind of embodiment；
Fig. 2 is the step process that nuclear power plant's high efficiency particulate air filter shell reuses the method utilized in another embodiment
Figure；
Fig. 3 is the step process that nuclear power plant's high efficiency particulate air filter shell reuses the method utilized in another embodiment
Figure；
Fig. 4 is a kind of structural schematic diagram of high efficiency particulate air filter shell in embodiment；
Fig. 5 is a kind of structural schematic diagram of filter plate in embodiment；
Fig. 6 is a kind of configuration schematic diagram of high efficiency particulate air filter shell in embodiment.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of embodiment is shown in the accompanying drawings, wherein identical from beginning to end
Or similar label indicates same or similar element or element with the same or similar functions.It is retouched below with reference to attached drawing
The embodiment stated is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.
Embodiment one:
A kind of method that the reuse of nuclear power plant's high efficiency particulate air filter shell utilizes is provided in the present embodiment, after use
Useless high efficiency particulate air filter shell first split, then filter plate is removed into filter material, radioactive pollution is measured later, for not dirty
The filter plate and mounting plate of dye or less pollution repeat assembling and use.
The high efficiency particulate air filter shell of the present embodiment improves, and high efficiency particulate air filter shell is by dismountable filter plate and mounting plate
Assemble.Filter plate and mounting plate are made of stainless steel, and require can be used 5 years circulations, have recycling
Condition.Not only it can increase the mechanical strength of frame, but also surface decontamination and cleaning can be convenient in repeating bonding filter material use.
As shown in Figure 1, nuclear power plant's high efficiency particulate air filter shell of the present embodiment reuses the method utilized, main includes such as
Lower step:
S101: high efficiency particulate air filter shell is split；
The high efficiency particulate air filter shell after use will be filtered to split, by demounting bolt by the filter plate fitted together and peace
Loading board is split.Filter plate and mounting plate are handled respectively.
S102: the filter material on filter plate is peeled away；
The filter plate to bond together and filter material that need to change after filtering use are peeled away, removing environment must be in a band
It is carried out in the room or equipment of negative pressure, can prevent radioactive dust in stripping process excessive in the environment of negative pressure, due to filter material
It is bonded on filter plate securely.Directly heater heating is needed to remove or special equipment mechanical stripping the filter material of bonding, filter
Material is packed into 208L canister.Finally filter plate is cleaned.
S103: measurement radioactive pollution；
Filter plate and mounting plate are required to carry out radioactive pollution measurement, and only meeting the repetition that can assemble needed makes
With.
Whether filter plate and mounting plate surface contamination level meet solution control limit value, and how measurement early warning value selects, according to related
Standard declaration is as follows:
(1) the 4.3.1 articles of GB 17567-2009 regulation: according to the source of quasi-solution control material, distinguishing its pollution is surface dirt
Dye or body pollution.The steel material that surface contamination is only belonged to for confirmation, when its surface contamination level is equal to or less than
It is horizontal (the 1/50 of control zone controlled level) about control body surface radioactive pollution control can be solved in GB18871-2002 Appendix B
When, after being examined pipe approval, implementable solution control.
(2) in GB18871-2002 Appendix B 11 control zone equipment surface level of pollution 1/50 control standard: to extremely toxic
α is 0.08Bq/cm2, other α are 0.8Bq/cm2；β is 0.8Bq/cm2。
(3) body pollution is not present in ventilation filter frame, does not consider extremely toxic α pollution, the emission types packet of shell Radionuclide
β and γ are included, wherein based on γ.Therefore, the measurement of solution control radiation level and assessment mainly according to GB 17567-2009 and
GB18871-2002 regulation, solution control limit value is horizontal using β surface contamination, i.e. 0.8Bq/cm2。
In national standard, the solution control value of β surface contamination level is 0.8Bq/cm2.Since the radiation of γ radiation level is smaller,
Also do not provide solution control value standard in national standard for γ radiation level.
Measurement to the radioactive pollution of filter plate and mounting plate, it is main to measure β surface contamination, i.e. high efficiency particulate air filter shell table
The β in face pollutes.In other embodiments, measurement standard is more stringent, and while measuring β surface contamination, also measurement γ radiates water
It is flat, that is, measure γ dose of radiation.
It is required according to nuclear power plant management, control zone article must carry out radioactive pollution measurement or solution control, nuclear power plant out
Measuring instrumentss and controlling value see the table below 1.
Table 1
As can be seen from Table 1, the solution control value of β surface contamination is 0.4Bq/cm2, the solution control value of γ radiation level is 40nSv/h.
Nuclear power plant is in order to guarantee use reliability, for greater safety, more environmentally friendly processing waste, therefore the solution control of nuclear power plant
It is worth more stringenter than national standard.
S104: if radioactive pollution is less than solution control value, filter plate or mounting plate are reused；
Specifically: if the radioactive pollution of filter plate is less than solution control value, filter plate be bonded new filter material be assembled into it is new efficient
Filter housings are reused；If the radioactive pollution of mounting plate is less than solution control value, mounting plate is assembled into new high efficiency filter
Device shell is reused.
If measure the β surface contamination of filter plate or mounting plate is less than solution control value 0.4Bq/cm2, then determine the filter plate or installation
Plate can solve control, and filter plate or mounting plate can recycle use again, and wherein filter plate needs to be bonded new filter material again.
Again the filter material being bonded must be the gusset for guaranteeing constant spacing and intensity made of combustion-proof glass fiber.Filter material
It is bonded on high efficiency particulate air filter shell by bonding agent, bonding agent is using radiation hardness and sealing resistant to high temperature made of organic silica gel
Glue or silicone resin.
As shown in Fig. 2, the method that nuclear power plant's high efficiency particulate air filter shell of the present embodiment reuses further comprises the steps of:
S105: if the radioactive pollution of filter plate or mounting plate is greater than solution control value, recycling filter plate or mounting plate are abandoned.
If measure the β surface contamination of filter plate or mounting plate is greater than solution control value 0.4Bq/cm2, then determine the filter plate or installation
Plate intangibility control recycling, need to abandon handling.
The method of nuclear power plant's high efficiency particulate air filter shell provided in this embodiment recycling, due to by high efficiency particulate air filter shell
It is first split after filtering pollution, filter material is being removed to filter plate, and measure the radioactive pollution of filter plate and mounting plate respectively, putting
It is just reusable no more than the filter plate and mounting plate of solution control value to penetrate pollution, so that some without contaminated or less pollution filter
Plate and mounting plate are reusable, and filter plate and mounting plate are general part, can filter plate with other high efficiency particulate air filter shells and installation
Plate is reassembled into new high efficiency particulate air filter shell, has saved inventory and replacement cost, also shortens the production week of prefilter
Phase improves production efficiency；High efficiency particulate air filter shell is reused, the volume of radioactive waste can be reduced, and be fully demonstrated
Environmental benefit, and to the responsibility that society takes on, and certain economic benefit can be generated；Protection environment, reduction are radiated simultaneously
Contact scar is significant.
Embodiment two:
As shown in figure 3, the method for nuclear power plant's high efficiency particulate air filter shell recycling provided in this embodiment, including walk as follows
It is rapid:
S201: high efficiency particulate air filter shell is split；
The high efficiency particulate air filter shell after use will be filtered to split, by demounting bolt by the filter plate fitted together and peace
Loading board is split.Filter plate and mounting plate are handled respectively.
S202: the filter material on filter plate is peeled away；
The filter plate to bond together and filter material that need to change after filtering use are peeled away, removing environment must be in a band
It is carried out in the room or equipment of negative pressure, can prevent radioactive dust in stripping process excessive in the environment of negative pressure, due to filter material
It is bonded on filter plate securely.Directly heater heating is needed to remove or special equipment mechanical stripping the filter material of bonding, filter
Material is packed into 208L canister.Finally filter plate is cleaned.
S203: measurement radioactive pollution；
Filter plate and mounting plate are required to carry out radioactive pollution measurement, and only meeting the repetition that can assemble needed makes
With.
Measurement to the radioactive pollution of filter plate and mounting plate, it is main to measure β surface contamination, i.e. high efficiency particulate air filter shell table
The β in face pollutes.In other embodiments, measurement standard is more stringent, and while measuring β surface contamination, also measurement γ radiates water
It is flat, that is, measure γ radiant quantity.
In national standard solution control, the solution control value of β surface contamination level is 0.8Bq/cm2.In the solution control standard of nuclear power plant, β
The solution control value of surface contamination level is 0.4Bq/cm2。
Since the radiation of γ radiation level is smaller, solution control value standard is not also provided in national standard for γ radiation level.
S204: if radioactive pollution is less than solution control value, filter plate or mounting plate are reused；
Specifically: if the radioactive pollution of filter plate is less than solution control value, filter plate be bonded new filter material be assembled into it is new efficient
Filter housings are reused；If the radioactive pollution of mounting plate is less than solution control value, mounting plate is assembled into new high efficiency filter
Device shell is reused.
If measure the β surface contamination of filter plate or mounting plate is equal to solution control value 0.4Bq/cm2, then determine the filter plate or installation
Plate can solve control, and filter plate or mounting plate can be reassembled into high efficiency particulate air filter shell, and wherein filter plate needs to be bonded new filter material again.
Again the filter material being bonded must be the gusset for guaranteeing constant spacing and intensity made of combustion-proof glass fiber.Filter material
It is bonded on high efficiency particulate air filter shell by bonding agent, bonding agent is using radiation hardness and sealing resistant to high temperature made of organic silica gel
Glue or silicone resin.
S205: if the radioactive pollution of high efficiency particulate air filter shell is greater than solution control value, recycling high efficiency particulate air filter shell is abandoned.
If measure the β surface contamination of filter plate or mounting plate is greater than solution control value 0.4Bq/cm2, then determine the filter plate or installation
Plate intangibility control recycling, need to abandon handling.
The method of nuclear power plant's high efficiency particulate air filter shell recycling of the present embodiment further comprises the steps of:
S206: performance detection qualification is then reused.
The high efficiency particulate air filter shell re-assemblied must satisfy certain performance and can use, therefore after being bonded again, efficiently
Filter need to carry out performance detection.
The high efficiency particulate air filter shell re-assemblied carries out vibration examination anti-vibration test platform (according to GB/T 17939-2015)
It tests, then tests the filter efficiency and initial resistance (according to GB/T 17939-2015 and GB/T 6165-2008) under nominal air delivery,
If being all satisfied national standard, nuclear power plant can be put into and reused.
The method of nuclear power plant's high efficiency particulate air filter shell provided in this embodiment recycling, due to by high efficiency particulate air filter shell
It is first split after filtering pollution, filter material is being removed to filter plate, and measure the radioactive pollution of filter plate and mounting plate respectively, putting
It is just reusable no more than the filter plate and mounting plate of solution control value to penetrate pollution, so that some without contaminated or less pollution filter
Plate and mounting plate are reusable, and filter plate and mounting plate are general part, can filter plate with other high efficiency particulate air filter shells and installation
Plate is reassembled into new high efficiency particulate air filter shell, has saved inventory and replacement cost, also shortens the production week of prefilter
Phase improves production efficiency；High efficiency particulate air filter shell is reused, the volume of radioactive waste can be reduced, and be fully demonstrated
Environmental benefit, and to the responsibility that society takes on, and certain economic benefit can be generated；Protection environment, reduction are radiated simultaneously
Contact scar is significant.And the high efficiency particulate air filter shell device re-assemblied also carries out performance detection, it is ensured that re-assemblies
The use quality of high efficiency particulate air filter shell.
Embodiment three:
A kind of nuclear power plant's high efficiency particulate air filter shell is present embodiments provided, this nuclear power plant high efficiency particulate air filter shell is efficient mistake
A part in filter, high efficiency particulate air filter include shell and filter core.
As shown in Figure 4, Figure 5 and Figure 6, nuclear power plant's high efficiency particulate air filter shell of the present embodiment includes two pieces of filter plates 1 and four pieces
Mounting plate 2, two pieces of filter plates 1 have filter opening, and are bonded with filter material, and two pieces of filter plates 1 are mounted on former and later two positions, four pieces of installations
Plate 2 is installed respectively on four positions up and down between two pieces of filter plates 1.Between filter plate and mounting plate 2 and between mounting plate 2
Removably fitted together by bolt or screw.
Filter plate 1 and mounting plate 2 are made of stainless steel, and require can be used 5 years circulations, have the item of recycling
Part.Not only it can increase the mechanical strength of frame, but also surface decontamination and cleaning can be convenient in repeating bonding filter material use.
Again the filter material being bonded must be the gusset for guaranteeing constant spacing and intensity made of combustion-proof glass fiber.Filter material
It is bonded on high efficiency particulate air filter shell by bonding agent, bonding agent is using radiation hardness and sealing resistant to high temperature made of organic silica gel
Glue or silicone resin.
Nuclear power plant's high efficiency particulate air filter shell of the present embodiment of the present embodiment has the advantages that
(1) housing parts can be disassembled, and may be split into six.The position of connection structure effectively avoids filter core,
It does not damage on the basis of filtration fraction and is more convenient for dismounting.
(2) by the solid waste resolution process of 610*610*292mm, that has accomplished outer frame shell and filter core separates processing,
Filter core can be handled by superpressure packing, and shell can be continued to use by processing, be substantially reduced the volume of solid waste.
(3) treated housing parts are general part, can be according to circumstances freely combined, when being unsatisfactory for reusing requirement
Component when, be individually replaced.
(4) sealing strip contacted with framed bent is structure as a whole, and has prevented splicing leakage.
Use above specific case is illustrated the present invention, is merely used to help understand the present invention, not to limit
The system present invention.For those skilled in the art, according to the thought of the present invention, can also make several simple
It deduces, deform or replaces.
Claims (16)
1. a kind of method of nuclear power plant's high efficiency particulate air filter shell recycling, which comprises the steps of:
By filter use after high efficiency particulate air filter shell on filter plate and mounting plate split；
Filter material on filter plate is peeled away；
The radioactive pollution of filter plate and mounting plate is measured respectively；
If the radioactive pollution of filter plate is less than solution control value, filter plate is bonded new filter material and is assembled into new high efficiency particulate air filter shell weight
It is multiple to use；If the radioactive pollution of mounting plate is less than solution control value, mounting plate is assembled into new high efficiency particulate air filter shell and repeats to make
With.
2. the method for nuclear power plant's high efficiency particulate air filter shell as described in claim 1 recycling, which is characterized in that further include as
Lower step: if the radioactive pollution of filter plate or mounting plate is greater than solution control value, it is still greater than solution control value after decontamination and abandons recycling filter
Plate or mounting plate.
3. the method for nuclear power plant's high efficiency particulate air filter shell recycling as claimed in claim 2, which is characterized in that further include as
Lower step: the high efficiency particulate air filter re-assemblied carries out performance detection, and performance detection qualification is then reusable.
4. the method for nuclear power plant's high efficiency particulate air filter shell recycling as claimed in claim 2 or claim 3, which is characterized in that described
Filter plate heats removing filter material under subnormal ambient.
5. the method for nuclear power plant's high efficiency particulate air filter shell recycling as claimed in claim 4, which is characterized in that the filter plate
After removing filter material, first cleaned, then measure radioactive pollution.
6. the method for nuclear power plant's high efficiency particulate air filter shell recycling as claimed in claim 5, which is characterized in that the radiation
Contact scar includes β surface contamination, and the solution control value includes β solution control value.
7. the method for nuclear power plant's high efficiency particulate air filter shell recycling as claimed in claim 6, which is characterized in that the β solution
Control value is 0.4Bq/cm2。
8. the method for nuclear power plant's high efficiency particulate air filter shell recycling as claimed in claim 7, which is characterized in that the radiation
Contact scar further includes γ radiation level, and the solution control value further includes γ solution control value.
9. the method for nuclear power plant's high efficiency particulate air filter shell recycling as claimed in claim 8, which is characterized in that the γ solution
Control value is 40nSv/h.
10. the method for nuclear power plant's high efficiency particulate air filter shell recycling as claimed in claim 9, which is characterized in that if filter plate
Or mounting plate β surface contamination and γ radiation level be respectively smaller than β solution control value and γ solution control value, then filter plate or mounting plate group again
Dress uses.
11. a kind of nuclear power plant's high efficiency particulate air filter shell, which is characterized in that including being mounted on two pieces of the front and back filter plates for having filter opening
And four pieces of mounting plates up and down are separately mounted to, and all plates are detachably installed between each other, are bonded on the filter plate
There is filter material.
12. nuclear power plant's high efficiency particulate air filter shell as claimed in claim 11, which is characterized in that the filter plate and mounting plate by
Stainless steel is made.
13. nuclear power plant's high efficiency particulate air filter shell as claimed in claim 12, which is characterized in that the filter material is by fireproof glass
Gusset made of fiber.
14. nuclear power plant's high efficiency particulate air filter shell as claimed in claim 13, which is characterized in that the gusset has constant spacing
And preset strength.
15. nuclear power plant's high efficiency particulate air filter shell as claimed in claim 14, which is characterized in that the filter material by sealant or
Silicone resin is bonded on filter plate.
16. nuclear power plant's high efficiency particulate air filter shell as claimed in claim 15, which is characterized in that the sealant or silicone resin are equal
For radiation hardness and organosilicon resistant to high temperature.
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| CN201710585949.6A CN109273126A (en) | 2017-07-18 | 2017-07-18 | Nuclear power plant's high efficiency particulate air filter shell and its method of recycling |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710585949.6A CN109273126A (en) | 2017-07-18 | 2017-07-18 | Nuclear power plant's high efficiency particulate air filter shell and its method of recycling |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110570967A (en) * | 2019-08-20 | 2019-12-13 | 大亚湾核电运营管理有限责任公司 | Mobile integrated production system for nuclear power station multiplexing filter |
| CN110570966A (en) * | 2019-08-20 | 2019-12-13 | 大亚湾核电运营管理有限责任公司 | Reuse production system for nuclear power plant filter |
| CN111755141A (en) * | 2020-07-04 | 2020-10-09 | 深圳市东昂企业管理有限公司 | Nuclear power plant is with removing integrated form filter equipment system |
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| CN111755141A (en) * | 2020-07-04 | 2020-10-09 | 深圳市东昂企业管理有限公司 | Nuclear power plant is with removing integrated form filter equipment system |
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