CN103212250B - Combined type helium gas filtering sampling device for gas cooled reactor and installation method of device - Google Patents
Combined type helium gas filtering sampling device for gas cooled reactor and installation method of device Download PDFInfo
- Publication number
- CN103212250B CN103212250B CN201310146683.7A CN201310146683A CN103212250B CN 103212250 B CN103212250 B CN 103212250B CN 201310146683 A CN201310146683 A CN 201310146683A CN 103212250 B CN103212250 B CN 103212250B
- Authority
- CN
- China
- Prior art keywords
- filter assemblies
- molecular sieve
- filtering
- screen cloth
- sleeve pipe
- 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
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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention relates to a combined type helium gas filtering sampling device for a gas cooled reactor and an installation method of the device. The combined type helium gas filtering sampling device is characterized by comprising a sleeve, at least two filter assemblies which are spaced along the axial direction and are fixed on the inner wall of the sleeve, and at least one molecular sieve assembly fixed between the two adjacent filter assemblies. The filtering sampling device provided by the invention adopts a sandwich combined type structure with the filter assemblies-the molecular sieve-the filter assembly, can fully filter fission product particles and graphite dust with different types and sizes carried by helium from a vapor generator, and can fulfill the purposes of multistage filtering, full deposition and adsorption of the fission product particles and graphite dust.
Description
Technical field
The present invention relates to a kind of reactor engineering equipment, particularly about a kind of combined type helium filtering and sampling device for gas-cooled reactor and installation method thereof.
Background technology
Shandong, Huaneng Group Shidao Bay nuclear power plant HTGR Nuclear Power Plant demonstration project (HTR-PM), being the 200 megawatt HTGR Nuclear Power Plant demonstration projects with independent intellectual property right of building in the technical foundation of 10 MW High Temperature Gas-cooled Test Reactor by Tsing-Hua University's autonomous Design, construction and operation, is the commercial Demonstration Station of Chinese First high temperature gas cooled reactor.The high temperature helium filtering and sampling device of high temperature gas cooled reactor is a vitals of technique radiation monitoring system, be mainly used in the fission product collected in the high temperature helium of HTR-PM reactor extraction, measure fission product concentration, concentration of graphite dust and specific radioactivity thereof, obtain the release rate that the release of reactor fuel element can deposit fission product accordingly, and other radio nuclide source terms parameters.
Because the helium of drawing from the steam generator of high temperature gas cooled reactor is about 750 DEG C, after overheated helium drainage tube, outlet temperature is about 650 DEG C, make the helium temperature through helium filtering and sampling device higher, and the wherein fission product particle of carrier band and graphite dust size difference comparatively large (particle diameter one micron with down to tens microns), kind is more, therefore require that helium filtering and sampling device is can while withstand higher temperatures, variety classes in efficient filtration helium, the fission product particle of different size and graphite dust, and high temperature helium can be born to the pressure crossing the generation of this device.The kind of traditional single-stage metre filter fission product is single, and efficiency is on the low side, can not meet above-mentioned requirements.In addition, the pressure produced filtering and sampling device due to high temperature helium is larger, therefore need to carry out innovative design to the structure of helium filtering and sampling device, keeping increasing its filter area under the less prerequisite of pore size filter, while high efficiency filter, the reliability on its mechanical structure can be ensured.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide and a kind ofly can filter variety classes, the fission product particle of different size and graphite dust, and for the combined type helium filtering and sampling device of gas-cooled reactor and installation method thereof.
For achieving the above object, the present invention takes following technical scheme: a kind of combined type helium filtering and sampling device for gas-cooled reactor, it is characterized in that, described device comprises: sleeve pipe, at least two are fixed on the filter assemblies on described internal surface of sleeve pipe vertically at interval, and at least one is fixed on the molecular sieve assembly between adjacent two described filter assemblies.
Each described filter assemblies comprises the first dividing plate be parallel to each other and second partition that are spaced apart from each other by some filtrators, wherein, described first dividing plate with the join domain of each described filtrator in be provided with the first opening, described first opening is communicated with the inwall of corresponding filtrator, and described second partition with the join domain of each described filtrator be not provided with the second opening.
The rotational symmetry central axis of each described filtrator is in the plane at described first dividing plate place.
The material of described filtrator is sintering metal or pottery.
The length of the filtrator in each described filter assemblies, aperture and material are identical or different; Aperture and the material of each described filtrator in same described filter assemblies are identical or different.
Outermost two described filter assemblies are respectively apart from two openend 3 ~ 5cm of described sleeve pipe.
Each molecular sieve assembly comprises the first molecule screen cloth and the second molecule screen cloth of parallel interval setting, and is close-coupled at the molecular sieve between described first molecule screen cloth and the second molecule screen cloth.
An installation method for said apparatus, it comprises the following steps: step 10, is fixed on the inwall of sleeve pipe by the first filter assemblies, and makes the cross-section normal of the first filter assemblies in the rotational symmetry center line of sleeve pipe; Step 20, is positioned in the sleeve pipe at the first filter assemblies rear by molecular sieve assembly; Step 30, is positioned in the sleeve pipe at molecular sieve assembly rear by the second filter assemblies, be then squeezed to each several part close contact to molecular sieve assembly direction, and makes the second filter assemblies parallel with the first filter assemblies.
Also comprise step 40, repeat above-mentioned steps 20 and 30, successively N molecular sieve assembly and N+1 filter assemblies are installed, wherein N be greater than 1 natural number.
Described step 20 is further comprising the steps of: step 21, is positioned over by the first molecule screen cloth in the sleeve pipe at the first filter assemblies rear, and makes the first molecule screen cloth be parallel to the xsect of the first filter assemblies; Step 22, puts into molecular sieve and the second molecule screen cloth successively, and to the first molecule screen cloth direction by molecular sieve compacting; Step 23, by whole for the second molecular sieve network regulation parallel with the first molecule screen cloth, and is fixed on the inwall of sleeve pipe by the second molecule screen cloth, completes the installation of the first molecular sieve assembly.
The present invention is owing to taking above technical scheme, it has following beneficial effect: 1, filtering and sampling device of the present invention adopts the sandwich fabricated structure of " filter assemblies-molecular sieve-filter assemblies ", fully filters the variety classes of the helium carrier band of drawing from steam generator, the fission product particle of different size and graphite dust.2, filtering and sampling unit of the present invention utilizes the side of multiple sintered metal filtration element, fission product particle in helium and graphite dust are filtered, helium after filtration is flowed out from the sidepiece of sintered metal filtration element and enters molecular sieve assembly again, thus improve filter area.When this larger filter area can also ensure that filtering element aperture is less, the pressure that filter assemblies and each sintered metal filtration element bear is less, thus ensure that steadiness and the security of system.The length of the filtrator 3, in filter assemblies of the present invention, aperture and material can be different, thus realize the effect that variety classes, the fission product particle of different-grain diameter and graphite dust separately filter.4, the molecular sieve in the middle of adjacent two filter assemblies of the present invention can adsorb polar fission product particle.5, the present invention can as required and combined cover length of tube, connect several filter assemblies and molecular sieve assembly, thus realize the object of cascade filtration, fully deposition, absorption fission product particle and graphite dust.6, filtering and sampling device of the present invention is after deposition sampling completes, and this filtering and sampling device can be decomposed according to sleeve pipe, molecular sieve assembly and filter assemblies, in order to measure the deposition conditions of fission product particle and graphite dust.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, detailed description is carried out to the present invention.But should be appreciated that being provided only of accompanying drawing understands the present invention better, they not should be understood to limitation of the present invention.
Fig. 1 is the structural representation of combined type helium filtering and sampling device provided by the invention;
Fig. 2 is the structure schematic top plan view of combined type helium filtering and sampling device provided by the invention;
Fig. 3 is the structural drawing of the filtering and sampling master unit of combined type helium filtering and sampling device provided by the invention;
Fig. 4 is the structure vertical view of the filter assemblies of combined type helium filtering and sampling device provided by the invention;
Fig. 5 is the A-A cross-sectional schematic of Fig. 4;
Fig. 6 is the structure vertical view of the molecular sieve assembly of combined type helium filtering and sampling device provided by the invention;
Fig. 7 is the structure schematic top plan view of the filtering and sampling concatenation unit of combined type helium filtering and sampling device provided by the invention;
In the drawings, identical component is indicated by identical Reference numeral.Accompanying drawing is not according to the scale of reality.
Embodiment
Contrast accompanying drawing below, and by the description to embodiment, in further detail the present invention is described.It should be noted that, the flow direction that " front ", " rear " herein is all directed to sampling air-flow defines, and wherein " front " refers to the upstream of the flow direction sampling air-flow.
Fig. 1, Fig. 2 show according to combined type helium filtering and sampling device 100 of the present invention, this device comprises: sleeve pipe 1, be fixed on the filtering and sampling master unit 2 on sleeve pipe 1 inwall, and be series at the filtering and sampling concatenation unit 3 at filtering and sampling master unit 2 rear, and be closely connected between filtering and sampling concatenation unit 3 with filtering and sampling master unit 2.
As Fig. 3 shows the filtering and sampling master unit 2 according to combined type helium filtering and sampling device of the present invention.This filtering and sampling master unit 2 comprises the first filter assemblies 4, first molecular sieve assembly 5 and the second filter assemblies 6.First filter assemblies 4 is fixed on sleeve pipe 1 inwall, and makes the rotational symmetry center line of cross-section normal in sleeve pipe 1 of the first filter assemblies 4.In one embodiment, the front end of the first filter assemblies 4 can the openend 3 ~ 5cm of distance sleeve 1.First molecular sieve assembly 5 is fixed on sleeve pipe 1 inwall at the first filter assemblies 4 rear, and makes the front end of the first molecular sieve assembly 5 and the rear end compact siro spinning technology of the first filter assemblies 4.Second filter assemblies 6 is fixed on sleeve pipe 1 inwall at the first molecular sieve assembly 5 rear, and the second filter assemblies 6 is parallel with the first filter assemblies 4, and makes the front end of the second filter assemblies 6 and the rear end compact siro spinning technology of the first molecular sieve assembly 5.
Figure 4 and 5 show the first filter assemblies 4 according to combined type helium filtering and sampling device of the present invention.This first filter assemblies 4 comprises the first dividing plate 7, some filtrators 8 and second partition 9.Filtrator 8 dislocation is arranged and is welded in the bottom of the first dividing plate 7, and makes the rotational symmetry central axis of filtrator 8 in the plane at the first dividing plate 7 place.Second partition 9 is welded on the other end of filtrator 8, and makes second partition 9 parallel with the first dividing plate 7.At the weld opening of the first dividing plate 7 with each filtrator 8, and each opening is communicated with the inwall of corresponding filtrator 8.At second partition 9 and the non-weld opening of filtrator 8, and the opening on the opening on second partition 9 and the first dividing plate 7 is made to form yin yang complementarity structure.
In a preferred embodiment, the structure of each filter assemblies is identical, but the length of filtrator 8, aperture and material can be different, thus realizes the effect that variety classes, the fission product particle of different-grain diameter and graphite dust separately filter.Meanwhile, the aperture of each filtrator in same filter assemblies and material also can be different.
In above-described embodiment, the material of filtrator 8 can adopt sintering metal or pottery.
Fig. 6 shows the first molecular sieve assembly 5 of combined type helium filtering and sampling device.This first molecular sieve assembly 5 comprises the first molecule screen cloth 10, molecular sieve 11 and the second molecule screen cloth 12.First molecule screen cloth 10 is fixed on sleeve pipe 1 inwall at the first filter assemblies 4 rear, and the first molecule screen cloth 10 is parallel to the xsect of the first filter assemblies 4, and makes the first molecule screen cloth 10 front end and the first filter assemblies 4 rear end compact siro spinning technology.Molecular sieve 11 is fixed on sleeve pipe 1 inwall at the first molecule screen cloth 10 rear, and makes molecular sieve 11 front end and the first molecule screen cloth 10 rear end compact siro spinning technology.Second molecule screen cloth 12 is fixed on sleeve pipe 1 inwall at molecular sieve 11 rear, and the second molecule screen cloth 12 is parallel with the first molecule screen cloth 10, and makes the second molecule screen cloth 12 front end and molecular sieve 11 rear end compact siro spinning technology.
In a preferred embodiment, the second molecular sieve assembly 13 is identical with the first molecular sieve assembly 5 structure, but length and material can be different, thus can filter different-grain diameter particle, and reaches certain filtration efficiency.
Fig. 7 shows the filtering and sampling concatenation unit 3 according to combined type helium filtering and sampling device of the present invention.Its structure and mounting means and filtering and sampling master unit 2 similar, difference is that filtering and sampling concatenation unit 3 only comprises the second molecular sieve assembly 13 and is arranged at the 3rd filter assemblies 14 at the second molecular sieve assembly 13 rear.
In a preferred embodiment, can according to actual filtration needs, several filtering and sampling concatenation unit 3 of optionally connecting is in filtering and sampling master unit 2 rear and be fixed on sleeve pipe 1 inwall.If any multiple filtering and sampling concatenation unit 3, require also closely to be connected between multiple filtering and sampling concatenation unit 3.In one embodiment, the rear end of afterbody filtering and sampling concatenation unit 3 can another openend 3 ~ 5cm of distance sleeve 1.In addition, also can not select, at filtering and sampling master unit 2 rear cascade filtration sampling concatenation unit 3, to be namely used alone filtering and sampling master unit 2 and to work.
In conjunction with the combined type helium filtering and sampling device that the above embodiment of the present invention provides, the invention allows for the installation method for this device, it comprises the following steps:
Step 10, is fixed on the first filter assemblies 4 on the inwall of sleeve pipe 1, and makes the rotational symmetry center line of cross-section normal in sleeve pipe 1 of the first filter assemblies 4;
Step 20, is positioned in the sleeve pipe at the first filter assemblies 4 rear by the first molecular sieve assembly 5;
Step 30, is positioned over the second filter assemblies 6 in the sleeve pipe 1 at the first molecular sieve assembly 5 rear, is then squeezed to each several part close contact to the first molecular sieve assembly 5 direction, and make the second filter assemblies 6 parallel with the first filter assemblies 4;
Step 40, repeat above-mentioned steps 20 and 30, successively N molecular sieve assembly and N+1 filter assemblies are installed, wherein N be greater than 1 natural number.
In addition, the installation method of the first molecular sieve assembly 5 comprises the following steps:
Step 21, is positioned over the first molecule screen cloth 10 in the sleeve pipe 1 at the first filter assemblies 4 rear, and makes the first molecule screen cloth 10 be parallel to the xsect of the first filter assemblies 4;
Step 22, puts into molecular sieve 11 and the second molecule screen cloth 12 successively, and to the first molecule screen cloth 10 direction by molecular sieve 11 compacting;
Step 23, adjusts the second molecule screen cloth 12 parallel with the first molecule screen cloth 10, and is fixed on the inwall of sleeve pipe 1 by the second molecule screen cloth 12, namely complete the installation of the first molecular sieve assembly 5.
The installation method of the second molecular sieve assembly 13 is identical with the first molecular sieve assembly 5, therefore repeats no more.
As can be seen from the above-described embodiment, the present invention can be filtered by the helium of cascade filtration to carrier band fission product particle and graphite dust.The first filter assemblies 4 wherein in filtering and sampling master unit 2 can do primary filter to the larger fission product particle of particle diameter and graphite dust, the first molecular sieve assembly 5 following closely can to interested fission product nucleic (as
131i) deposit, the second filter assemblies 6 then can deposit less fission product particle and graphite dust.Several filtering and sampling concatenation unit 3 of optionally connecting can adsorb other materials in helium further effectively, as the second molecular sieve assembly 13 can CO absorption
2, H
2the foreign gases such as O, the 3rd filter assemblies 14 can filter more tiny fission product particle and graphite dust, to reach the object of abundant deposition, absorption fission product particle and graphite dust.
The above is only the preferred embodiment of the present invention; object of the present invention, technical scheme and beneficial effect are further described; be understood that; for the person of ordinary skill of the art; under the prerequisite not departing from the technology of the present invention principle; some improvement and modification can be made, such as, about the increase of filtering and sampling concatenation unit quantity or the improvement of minimizing or modification etc., all should be included within protection scope of the present invention.
Claims (9)
1., for a combined type helium filtering and sampling device for gas-cooled reactor, it is characterized in that, described device comprises:
Sleeve pipe,
At least two are fixed on the filter assemblies on described internal surface of sleeve pipe vertically at interval, and
At least one is fixed on the molecular sieve assembly between adjacent two described filter assemblies,
Each described filter assemblies comprises the first dividing plate be parallel to each other and second partition that are spaced apart from each other by some filtrators, wherein, described first dividing plate with the join domain of each described filtrator in be provided with the first opening, described first opening is communicated with the inwall of corresponding filtrator, and described second partition with the join domain of each described filtrator be not provided with the second opening.
2. combined type helium filtering and sampling device as claimed in claim 1, it is characterized in that, the rotational symmetry central axis of each described filtrator is in the plane at described first dividing plate place.
3. combined type helium filtering and sampling device as claimed in claim 1 or 2, it is characterized in that, the material of described filtrator is sintering metal or pottery.
4. combined type helium filtering and sampling device as claimed in claim 2, is characterized in that, the length of the filtrator in each described filter assemblies, aperture and material are identical or different; Aperture and the material of each described filtrator in same described filter assemblies are identical or different.
5. combined type helium filtering and sampling device as claimed in claim 1, it is characterized in that, outermost two described filter assemblies are respectively apart from two openend 3 ~ 5cm of described sleeve pipe.
6. combined type helium filtering and sampling device as claimed in claim 1, it is characterized in that, each molecular sieve assembly comprises the first molecule screen cloth and the second molecule screen cloth of parallel interval setting, and is close-coupled at the molecular sieve between described first molecule screen cloth and the second molecule screen cloth.
7. the installation method of device according to any one of claim 1 to 6, it comprises the following steps:
Step 10, is fixed on the first filter assemblies on the inwall of sleeve pipe, and makes the cross-section normal of the first filter assemblies in the rotational symmetry center line of sleeve pipe;
Step 20, is positioned in the sleeve pipe at the first filter assemblies rear by molecular sieve assembly;
Step 30, is positioned in the sleeve pipe at molecular sieve assembly rear by the second filter assemblies, be then squeezed to each several part close contact to molecular sieve assembly direction, and makes the second filter assemblies parallel with the first filter assemblies.
8. installation method as claimed in claim 7, is characterized in that, also comprise step 40, repeats above-mentioned steps 20 and 30, installs N molecular sieve assembly and N+1 filter assemblies successively, wherein N be greater than 1 natural number.
9. installation method as claimed in claim 7, it is characterized in that, described step 20 is further comprising the steps of:
Step 21, is positioned over the first molecule screen cloth in the sleeve pipe at the first filter assemblies rear, and makes the first molecule screen cloth be parallel to the xsect of the first filter assemblies;
Step 22, puts into molecular sieve and the second molecule screen cloth successively, and to the first molecule screen cloth direction by molecular sieve compacting;
Step 23, by whole for the second molecular sieve network regulation parallel with the first molecule screen cloth, and is fixed on the inwall of sleeve pipe by the second molecule screen cloth, completes the installation of the first molecular sieve assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310146683.7A CN103212250B (en) | 2013-04-24 | 2013-04-24 | Combined type helium gas filtering sampling device for gas cooled reactor and installation method of device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310146683.7A CN103212250B (en) | 2013-04-24 | 2013-04-24 | Combined type helium gas filtering sampling device for gas cooled reactor and installation method of device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103212250A CN103212250A (en) | 2013-07-24 |
| CN103212250B true CN103212250B (en) | 2015-02-18 |
Family
ID=48810610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310146683.7A Active CN103212250B (en) | 2013-04-24 | 2013-04-24 | Combined type helium gas filtering sampling device for gas cooled reactor and installation method of device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103212250B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104785023B (en) * | 2015-03-31 | 2017-05-10 | 陕西美斯林能源科技研究院 | Self-cleaning high-temperature oil gas filter dust-removal process device and method |
| CN105139904B (en) * | 2015-08-25 | 2017-05-17 | 天鼎联创密封技术（北京）有限公司 | molecular sieve device |
| CN105225713B (en) * | 2015-08-25 | 2017-06-27 | 天鼎联创密封技术（北京）有限公司 | Molecular sieve replacement device |
| CN110097979B (en) * | 2018-01-31 | 2022-11-18 | 中国辐射防护研究院 | Graphite dust collecting device for ball bed high-temperature gas cooled reactor |
| CN110097989B (en) * | 2018-01-31 | 2022-11-18 | 中国辐射防护研究院 | Graphite dust pollution removing method for pebble-bed high-temperature gas cooled reactor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5106759A (en) * | 1988-06-28 | 1992-04-21 | Addison Clark D | Method for collecting radon and testing therefor |
| JP2001264224A (en) * | 2000-03-08 | 2001-09-26 | Laurence D Locker | Sampling container for toxic material in air |
| JP2005241473A (en) * | 2004-02-26 | 2005-09-08 | Perkinelmer Japan Co Ltd | Air pollutant collecting device |
| CN201965043U (en) * | 2010-10-27 | 2011-09-07 | 中国科学院大连化学物理研究所 | Sampling tube and sampling enriching and thermal desorbing device for atmospheric trace volatile organic compounds |
-
2013
- 2013-04-24 CN CN201310146683.7A patent/CN103212250B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5106759A (en) * | 1988-06-28 | 1992-04-21 | Addison Clark D | Method for collecting radon and testing therefor |
| JP2001264224A (en) * | 2000-03-08 | 2001-09-26 | Laurence D Locker | Sampling container for toxic material in air |
| JP2005241473A (en) * | 2004-02-26 | 2005-09-08 | Perkinelmer Japan Co Ltd | Air pollutant collecting device |
| CN201965043U (en) * | 2010-10-27 | 2011-09-07 | 中国科学院大连化学物理研究所 | Sampling tube and sampling enriching and thermal desorbing device for atmospheric trace volatile organic compounds |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103212250A (en) | 2013-07-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103212250B (en) | Combined type helium gas filtering sampling device for gas cooled reactor and installation method of device | |
| CN102527167A (en) | High-strength metal filtering tube and preparation method thereof | |
| CN106118778A (en) | A kind of novel natural gas filter separator | |
| CN103055623B (en) | Filtering collector | |
| CN204973221U (en) | Novel rainwater filter | |
| CN105485787A (en) | Movable multifunctional air purifier | |
| CN105031994A (en) | Novel rain filter | |
| CN107945886B (en) | Cladding structure for fusion reactor | |
| CN205340373U (en) | Industry organic waste gas dust removal drying device | |
| CN105688533B (en) | A kind of air filtration composite fibre net and preparation method thereof | |
| CN207282164U (en) | A kind of pneumatic filter | |
| CN102820070A (en) | Helium-filled system for removing grains in gas | |
| US10176901B2 (en) | Systems, methods, and filters for radioactive material capture | |
| CN201848147U (en) | Y-shaped filter | |
| CN203862049U (en) | Novel dust filter for high-temperature high-pressure radioactive helium environment | |
| CN104707413A (en) | Metal fiber filtering mechanism for filter | |
| CN103418189A (en) | Device for filtering fluid in a power generating system | |
| CN208517099U (en) | A kind of filter element of water purifier with buffer structure | |
| CN207215663U (en) | Core level filter test device | |
| CN104548827B (en) | A kind of carbon multiplex remover device of sponge thermophoresis fine particle | |
| CN211486947U (en) | Detachable air filtering device for external centrifugal ventilator | |
| CN105842368A (en) | Air purifying device for gas chromatograph | |
| CN202237520U (en) | Drip irrigation water filter | |
| CN209541082U (en) | Peculiar smell filters remove device in a kind of shallow layer geothermal energy air-conditioning | |
| CN210009708U (en) | Supercritical fluid particle removing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210120 Address after: 100193 building 26, Zhongguancun Software Park, 8 Dongbeiwang West Road, Haidian District, Beijing Patentee after: CHINERGY Co.,Ltd. Address before: 100084, Haidian District, 100084 mailbox, 82 boxes, Tsinghua University patent office, Beijing Patentee before: TSINGHUA University |
|
| TR01 | Transfer of patent right |