CN107564600B - A kind of nuclear power plant's air cleaning unit based on low-resistance polytetrafluoroethylene (PTFE) - Google Patents
A kind of nuclear power plant's air cleaning unit based on low-resistance polytetrafluoroethylene (PTFE) Download PDFInfo
- Publication number
- CN107564600B CN107564600B CN201710902867.XA CN201710902867A CN107564600B CN 107564600 B CN107564600 B CN 107564600B CN 201710902867 A CN201710902867 A CN 201710902867A CN 107564600 B CN107564600 B CN 107564600B
- Authority
- CN
- China
- Prior art keywords
- air
- ptfe
- polytetrafluoroethylene
- low
- product
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229920001343 polytetrafluoroethylene Polymers 0.000 title claims abstract description 60
- 239000004810 polytetrafluoroethylene Substances 0.000 title claims abstract description 60
- -1 polytetrafluoroethylene Polymers 0.000 title claims abstract description 31
- 238000004140 cleaning Methods 0.000 title claims abstract description 17
- 238000001914 filtration Methods 0.000 claims abstract description 17
- 239000004809 Teflon Substances 0.000 claims abstract description 11
- 229920006362 Teflon® Polymers 0.000 claims abstract description 11
- 239000000428 dust Substances 0.000 claims abstract description 10
- 229910052740 iodine Inorganic materials 0.000 claims abstract description 9
- 239000011630 iodine Substances 0.000 claims abstract description 9
- 210000004379 membrane Anatomy 0.000 claims abstract description 8
- 150000002497 iodine compounds Chemical class 0.000 claims abstract description 5
- XMBWDFGMSWQBCA-RNFDNDRNSA-M iodine-131(1-) Chemical compound [131I-] XMBWDFGMSWQBCA-RNFDNDRNSA-M 0.000 claims abstract description 5
- 238000001179 sorption measurement Methods 0.000 claims abstract description 5
- 239000003365 glass fiber Substances 0.000 claims description 12
- 239000011521 glass Substances 0.000 claims description 11
- 239000012752 auxiliary agent Substances 0.000 claims description 9
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 3
- 239000011812 mixed powder Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 150000001336 alkenes Chemical class 0.000 claims description 2
- 238000000746 purification Methods 0.000 abstract description 3
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000003490 calendering Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003758 nuclear fuel Substances 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000003904 radioactive pollution Methods 0.000 description 1
- 239000000941 radioactive substance Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Laminated Bodies (AREA)
- Filtering Materials (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention discloses a kind of nuclear power plant's air cleaning units based on low-resistance polytetrafluoroethylene (PTFE), which is characterized in that including sequentially connected: air pressurized section, for increasing intake air pressure；Electric heater section reduces the relative humidity in air；Pre-filtering section, the micronic dust for being greater than 5 microns for filtering out partial size in air；High efficiency filter section includes low-resistance microporous teflon membran, the micronic dust for being greater than 0.3 micron for filtering out partial size in air；Iodine adsorption section, for adsorbing radioiodine and iodine compound in air.The windage of entire air cleaning unit can be effectively reduced in the present invention, promotes purification efficiency, and whole service life is longer.
Description
Technical field
The present invention relates to a kind of air cleaning unit, especially a kind of nuclear power plant's air based on low-resistance polytetrafluoroethylene (PTFE) is net
Makeup is set.
Background technique
Nuclear power plant is during operation and in the storage, Radiochemicals keeping and other operating process of nuclear fuel
Some harmful radioactive particles can be generated, cannot be directly discharged in atmosphere, therefore nuclear power station utilizes air cleaning system
Filtering falls these harmful radioactive substances with absorption, to protect the staff, the public and environment of plant area by radioactive pollution
And injury.
Currently, the air cleaning unit of nuclear power plant mainly includes the purification of two levels, physics mode filter is generally first passed through
Except micronic dust, iodine adsorber absorption radioiodine and iodine compound are recycled.Final stage in general physical filtering is by activity
Charcoal composition, however active carbon to filter out short grained micronic dust must size itself it is minimum, therefore not only windage is big, but also being easy will
Subtle carbon dust brings iodine adsorber into, influences the working efficiency of iodine adsorber.
Summary of the invention
The object of the present invention is to provide a kind of nuclear power plant's air cleaning units based on low-resistance polytetrafluoroethylene (PTFE).This hair
The bright windage that entire air cleaning unit can be effectively reduced promotes purification efficiency, and whole service life is longer.
Technical solution of the present invention: a kind of nuclear power plant's air cleaning unit based on low-resistance polytetrafluoroethylene (PTFE), its main feature is that,
Including sequentially connected:
Air pressurized section, for increasing intake air pressure；
Electric heater section reduces the relative humidity in air；
Pre-filtering section, the micronic dust for being greater than 5 microns for filtering out partial size in air；
High efficiency filter section includes low-resistance microporous teflon membran, micro- greater than 0.3 micron for filtering out partial size in air
Dirt；
Iodine adsorption section, for adsorbing radioiodine and iodine compound in air.
In above-mentioned nuclear power plant's air cleaning unit based on low-resistance polytetrafluoroethylene (PTFE), the filter material of the pre-filtering section is glass
Glass fibre knitting cloth, the microstructure of glass fiber woven cloth include multiple glass layers, and each glass layer is by more
A glass fiber arranged in parallel forms, 60 ° of glass fiber angle in two neighboring glass layer.
In nuclear power plant's air cleaning unit above-mentioned based on low-resistance polytetrafluoroethylene (PTFE), the low-resistance polytetrafluoroethylene (PTFE) micropore
The microstructure of film includes multiple polytetrafluoroethylene (PTFE) monofilms, and each polytetrafluoroethylene (PTFE) monofilm includes poly- the four of multiple parallel arrangements
Vinyl fluoride reinforcing rib is connected with polytetrafluoroethylene fibre between connected tetrafluoroethene reinforcing rib；Adjacent polytetrafluoroethylene (PTFE) list
The polytetrafluoroethylene (PTFE) reinforcement of film is mutually perpendicular to.
In nuclear power plant's air cleaning unit above-mentioned based on low-resistance polytetrafluoroethylene (PTFE), the low-resistance polytetrafluoroethylene (PTFE) micropore
Film the preparation method comprises the following steps:
Teflon resin powder and auxiliary agent oil are uniformly mixed into mixed powder, wherein auxiliary agent oil quality percentage is
20%, 5 hours are kept the temperature at 45 DEG C, obtain A product；
A product are put into extruder, the laminated structure being extruded into, and pass through 250 microns after calendering city thickness of thin layer
Structure, a wherein side surface for laminate structure are uniformly placed with wide 50 microns, high 150 microns of strip projected parts；
Dry, removal auxiliary agent oil, obtains B product；
B product are stretched 5 times along strip projected parts direction, obtain C product, stretching temperature is 300 DEG C；
C product are stretched 15 times along the direction perpendicular to strip projected parts, obtain D product, draft temperature is 200 DEG C；
After multiple D product are stacked, sinter molding.
Compared with prior art, by the present invention in that with the low-resistance polytetrafluoroethylene film of special construction as last one
Micronic dust filter element not only has lower windage, but also adsorption rate is higher, and the service life is longer, and will not will be in filter material
Other particles bring into next section of iodine adsorber, therefore do not interfere with the working efficiency of iodine absorption.
Specific embodiment
Below with reference to embodiment, the present invention is further illustrated, but is not intended as the foundation limited the present invention.
Embodiment.A kind of nuclear power plant's air cleaning unit based on low-resistance polytetrafluoroethylene (PTFE), including sequentially connected:
Air pressurized section, for increasing intake air pressure；
Electric heater section reduces the relative humidity in air；
Pre-filtering section, the micronic dust for being greater than 5 microns for filtering out partial size in air；
High efficiency filter section includes low-resistance microporous teflon membran, micro- greater than 0.3 micron for filtering out partial size in air
Dirt；
Iodine adsorption section, for adsorbing radioiodine and iodine compound in air.
The filter material of the pre-filtering section is glass fiber woven cloth, and the microstructure of glass fiber woven cloth includes multiple glass
Glass fibrous layer, each glass layer is made of multiple glass fibers arranged in parallel, in two neighboring glass layer
60 ° of glass fiber angle.
The microstructure of the low-resistance microporous teflon membran includes multiple polytetrafluoroethylene (PTFE) monofilms, each polytetrafluoroethyl-ne
Alkene monofilm includes the polytetrafluoroethylene (PTFE) reinforcing rib of multiple parallel arrangements, is connected with poly- four between connected tetrafluoroethene reinforcing rib
Vinyl fluoride fiber；The polytetrafluoroethylene (PTFE) reinforcement of adjacent polytetrafluoroethylene (PTFE) monofilm is mutually perpendicular to.
The low-resistance microporous teflon membran the preparation method comprises the following steps:
Teflon resin powder and auxiliary agent oil are uniformly mixed into mixed powder, wherein auxiliary agent oil quality percentage is
20%, 5 hours are kept the temperature at 45 DEG C, obtain A product；
A product are put into extruder, the laminated structure being extruded into, and pass through 250 microns after calendering city thickness of thin layer
Structure, a wherein side surface for laminate structure are uniformly placed with wide 50 microns, high 150 microns of strip projected parts；
Dry, removal auxiliary agent oil, obtains B product；
B product are stretched 5 times along strip projected parts direction, obtain C product, stretching temperature is 300 DEG C；
C product are stretched 15 times along the direction perpendicular to strip projected parts, obtain D product, draft temperature is 200 DEG C；
After multiple D product are stacked, sinter molding.
Claims (3)
1. a kind of nuclear power plant's air cleaning unit based on low-resistance polytetrafluoroethylene (PTFE), which is characterized in that including sequentially connected:
Air pressurized section, for increasing intake air pressure；
Electric heater section reduces the relative humidity in air；
Pre-filtering section, the micronic dust for being greater than 5 microns for filtering out partial size in air；
High efficiency filter section includes low-resistance microporous teflon membran, the micronic dust for being greater than 0.3 micron for filtering out partial size in air；
The microstructure of the low-resistance microporous teflon membran includes multiple polytetrafluoroethylene (PTFE) monofilms, and each polytetrafluoroethylene (PTFE) monofilm is equal
Polytetrafluoroethylene (PTFE) reinforcing rib comprising multiple parallel arrangements is connected with polytetrafluoroethyl-ne between connected polytetrafluoroethylene (PTFE) reinforcing rib
Alkene fiber；The polytetrafluoroethylene (PTFE) reinforcing rib of adjacent polytetrafluoroethylene (PTFE) monofilm is mutually perpendicular to；
Iodine adsorption section, for adsorbing radioiodine and iodine compound in air.
2. nuclear power plant's air cleaning unit according to claim 1 based on low-resistance polytetrafluoroethylene (PTFE), it is characterised in that: institute
The filter material for stating pre-filtering section is glass fiber woven cloth, and the microstructure of glass fiber woven cloth includes multiple glass layers,
Each glass layer is made of multiple glass fibers arranged in parallel, the glass fibre in two neighboring glass layer
60 ° of angle of silk.
3. nuclear power plant's air cleaning unit according to claim 1 based on low-resistance polytetrafluoroethylene (PTFE), which is characterized in that institute
State low-resistance microporous teflon membran the preparation method comprises the following steps:
Teflon resin powder and auxiliary agent oil are uniformly mixed into mixed powder, wherein auxiliary agent oil quality percentage is
20%, 5 hours are kept the temperature at 45 DEG C, obtain A product；
A product are put into extruder, are extruded into laminated structure, and by being rolled into thick 250 microns of the laminate structure of thickness,
A wherein side surface for laminate structure is uniformly placed with wide 50 microns, high 150 microns of strip projected parts；
Dry, removal auxiliary agent oil, obtains B product；
B product are stretched 5 times along strip projected parts direction, obtain C product, draft temperature is 300 DEG C；
C product are stretched 15 times along the direction perpendicular to strip projected parts, obtain D product, draft temperature is 200 DEG C；
After multiple D product are stacked, sinter molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710902867.XA CN107564600B (en) | 2017-09-29 | 2017-09-29 | A kind of nuclear power plant's air cleaning unit based on low-resistance polytetrafluoroethylene (PTFE) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710902867.XA CN107564600B (en) | 2017-09-29 | 2017-09-29 | A kind of nuclear power plant's air cleaning unit based on low-resistance polytetrafluoroethylene (PTFE) |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107564600A CN107564600A (en) | 2018-01-09 |
| CN107564600B true CN107564600B (en) | 2019-06-21 |
Family
ID=60983533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710902867.XA Active CN107564600B (en) | 2017-09-29 | 2017-09-29 | A kind of nuclear power plant's air cleaning unit based on low-resistance polytetrafluoroethylene (PTFE) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107564600B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2522350A1 (en) * | 1982-02-26 | 1983-09-02 | Poelman Sofiltra | INSTALLATION OF PRESSURIZATION AND FILTRATION, IN PARTICULAR FOR PROTECTING PERSONS FROM THE EFFECTS OF NUCLEAR, BIOLOGICAL OR CHEMICAL WEAPONS |
| CN102658038A (en) * | 2012-04-10 | 2012-09-12 | 杭州洁弗膜技术有限公司 | Preparation method of sub-high efficiency polytetrafluoroethylene (PTFE) micro-porous film and film lamination material |
| CN103764251A (en) * | 2011-08-31 | 2014-04-30 | 大金工业株式会社 | Filter medium for air filter, air filter unit, and method for producing filter medium for air filter |
| CN103827591A (en) * | 2011-05-24 | 2014-05-28 | 菲利普·普雷奥 | Improved equipment for filtration and sterilization of ambient air |
| CN104043347A (en) * | 2014-04-30 | 2014-09-17 | 桐乡市健民过滤材料有限公司 | Low-resistance wear-resistance teflon microporous membrane and preparation method |
-
2017
- 2017-09-29 CN CN201710902867.XA patent/CN107564600B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2522350A1 (en) * | 1982-02-26 | 1983-09-02 | Poelman Sofiltra | INSTALLATION OF PRESSURIZATION AND FILTRATION, IN PARTICULAR FOR PROTECTING PERSONS FROM THE EFFECTS OF NUCLEAR, BIOLOGICAL OR CHEMICAL WEAPONS |
| CN103827591A (en) * | 2011-05-24 | 2014-05-28 | 菲利普·普雷奥 | Improved equipment for filtration and sterilization of ambient air |
| CN103764251A (en) * | 2011-08-31 | 2014-04-30 | 大金工业株式会社 | Filter medium for air filter, air filter unit, and method for producing filter medium for air filter |
| CN102658038A (en) * | 2012-04-10 | 2012-09-12 | 杭州洁弗膜技术有限公司 | Preparation method of sub-high efficiency polytetrafluoroethylene (PTFE) micro-porous film and film lamination material |
| CN104043347A (en) * | 2014-04-30 | 2014-09-17 | 桐乡市健民过滤材料有限公司 | Low-resistance wear-resistance teflon microporous membrane and preparation method |
Non-Patent Citations (1)
| Title |
|---|
| 核电厂空气净化机组出厂及现场试验;罗伟涛,叶剑云;《洁净与空调技术》;20141231;第2014年卷(第3期);全文，尤其是第85页第1节 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107564600A (en) | 2018-01-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chen et al. | Honeycomb-like polysulphone/polyurethane nanofiber filter for the removal of organic/inorganic species from air streams | |
| US8048210B2 (en) | Web comprising fine fiber and reactive, adsorptive or absorptive particulate | |
| KR101668395B1 (en) | Filter with Nano Fiber and Manufacturing Thereof | |
| CN104906919B (en) | Belt type adsorption and microwave desorption organic waste gas purification method and device | |
| CN202343013U (en) | Glass fiber film coating filter material | |
| JP2014124578A (en) | Filtration material for filter and production method of the same | |
| CN107564600B (en) | A kind of nuclear power plant's air cleaning unit based on low-resistance polytetrafluoroethylene (PTFE) | |
| CN205516894U (en) | Multiple dimensioned, low resistance filtration scavenging material | |
| CN101357279A (en) | Dust removal and dioxin decomposition integration filter material and preparation method thereof | |
| CN104971630A (en) | Polyolefin air filtering composite film and preparation method therefor | |
| CN101496974B (en) | A preparation method of dust removal and dioxin decomposition double-effect filter material | |
| CN109263182B (en) | Anti-haze gauze adopting nanofiber silk overlapping microporous honeycomb convolution technology and manufacturing method thereof | |
| CN109367171A (en) | A kind of polytetrafluoroethylene material filtrate base fabric resistant to high temperature | |
| CN102527150A (en) | Preparation method of smoke dust filter material by using glass fiber | |
| US20220080342A1 (en) | Filter material used for automobile air conditioning and capable of filtering out volatile organic compound (voc) gas, and process thereof | |
| KR102129418B1 (en) | Filter for blocking fine dust with nano fiber and preparing method same | |
| CN112111858A (en) | Energy-saving micro-nano melt-blowing production equipment and working principle thereof | |
| CN101496650A (en) | Down fiber-filtering system based on static | |
| CN106884609A (en) | High efficiency filter PM2.5 transparent nano window screenings of low pressure drop and preparation method thereof | |
| CN212549053U (en) | Covering device of high-air-permeability air purification composite membrane | |
| CN109795840B (en) | Aramid fiber double-layer ring network conveyer belt and preparation method thereof | |
| KR20120114036A (en) | High temperature fabric filter and meathod for manufacturing the same | |
| CN205252708U (en) | Compound activated carbon fiber air conditioner filter core | |
| KR20190123004A (en) | Manufacturing method of fine dust filter | |
| CN105617763A (en) | Composite air filtration cloth and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |