CN204964265U - Sampling case of preliminary treatment can carry out flue gas - Google Patents
Sampling case of preliminary treatment can carry out flue gas Download PDFInfo
- Publication number
- CN204964265U CN204964265U CN201520729927.9U CN201520729927U CN204964265U CN 204964265 U CN204964265 U CN 204964265U CN 201520729927 U CN201520729927 U CN 201520729927U CN 204964265 U CN204964265 U CN 204964265U
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- China
- Prior art keywords
- flue gas
- pipeline
- gas
- carry out
- insulation
- 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.)
- Expired - Fee Related
Links
- 238000005070 sampling Methods 0.000 title claims abstract description 85
- 239000003546 flue gas Substances 0.000 title claims abstract description 63
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 238000001035 drying Methods 0.000 claims abstract description 40
- 238000010438 heat treatment Methods 0.000 claims abstract description 40
- 239000000523 sample Substances 0.000 claims abstract description 36
- 238000009413 insulation Methods 0.000 claims abstract description 32
- 229920000557 Nafion® Polymers 0.000 claims abstract description 28
- 239000007789 gas Substances 0.000 claims abstract description 28
- 238000001914 filtration Methods 0.000 claims description 20
- 239000000428 dust Substances 0.000 claims description 19
- 238000007664 blowing Methods 0.000 claims description 13
- 229910001220 stainless steel Inorganic materials 0.000 claims description 11
- 239000010935 stainless steel Substances 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 239000002937 thermal insulation foam Substances 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 3
- 238000000746 purification Methods 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 239000003517 fume Substances 0.000 abstract 1
- 238000007781 pre-processing Methods 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000010926 purge Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical class N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004868 gas analysis Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000006002 Pepper Substances 0.000 description 1
- 238000012952 Resampling Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a fume emission on -line monitoring system especially relates to a sampling case of preliminary treatment can carry out flue gas. The utility model discloses it is two -layer about casing inside divide into, the upper strata is the heating chamber, the lower floor is thermal -insulated chamber, the centre separates with the baffle, sampling probe and filter equipment install in the insulation can, the heating ring cover is in the sampling probe outside, be provided with the companion torrid zone between the insulation can ectonexine, insulation can outside parcel has thermal -insulated cottonly, thermal -insulated intracavity is provided with nafion drying tube and mechanical temperature controller, sampling probe's flue gas mouth passes through the pipeline and communicates with filter equipment and nafion drying tube in proper order, pipeline and second grade preprocessing device intercommunication are passed through to the gas outlet of nafion drying tube, the companion torrid zone and heating ring stretch into thermal -insulated intracavity through the wire respectively and are connected with mechanical temperature controller. The utility model discloses can keep high temperature environment during the sampling of sampling case, have preliminary treatment purification performance, can prevent effectively that sampling probe and drying tube from blockking up.
Description
Technical field
The utility model relates to on-line monitoring system of flue gas discharge, and particularly relating to one can carry out pretreated sampling box to flue gas.
Background technology
Although industrial smoke is just disposed in air after being through desulphurization and denitration process, in flue gas, still can remain a large amount of toxic and harmfuls, still need to monitor in real time.In the prior art, usually adopt following methods: gather the flue gas in chimney by flue gas sampler, then the flue gas collected is transferred in smoke gas analysis equipment by sampling apparatus, detect harmful substances from flue gases content by smoke gas analysis equipment and whether exceed standard.
Existing flue gas sampler often comprises sampling probe, drying tube etc.Because the existing flue gas moisture content of China is higher, have up to 20%, simultaneously discharge flue-gas temperature lower, be generally about 80 DEG C, under the environment that temperature is lower, gasoloid and ammonia salt-pepper noise meeting and SO when entering sampling feeler lever
2react, cause SO
2consumption, thus cause detect data result inaccurate, simultaneously, flue gas in pipeline very easily forms ammonium salt crystallization and the crystallization of microparticle thing, causes impact to a certain degree, in addition on analyzing the concentration of thing, when temperature is lower, moisture a large amount of in flue gas can liquefy precipitation, has a strong impact on analysis result.Simultaneously due to a large amount of granule dust residual in flue gas, easily cause the blocking of sampling probe, drying tube, add the pretreated pressure after resampling, therefore, hot environment can be kept during the sampling of research and development one, there is pre-service purification function, can effectively prevent the sampling box of sampling probe and drying tube blocking from seeming particularly important.
Utility model content
The technical problems to be solved in the utility model can keep hot environment when being to provide a kind of sampling, has pre-service purification function, effectively can prevent the sampling box of sampling probe and drying tube blocking.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
The utility model can carry out pretreated sampling box to flue gas, comprise housing, sampling probe and filtration unit, also comprise Nafion drying tube, mechanical thermostat and constant temperature system, described enclosure interior is divided into two-layer up and down, upper strata is heating chamber, lower floor is heat-insulation chamber, centre separates with baffle plate, in heating chamber, sampling probe is installed, filtration unit and constant temperature system, described constant temperature system comprises insulation can, heating tape, heating ring and heat insulation foam, sampling probe and filtration unit are arranged in insulation can, heating ring is enclosed within outside sampling probe, heating tape is provided with between insulation can ectonexine, heat insulation foam is enclosed with outside insulation can, Nafion drying tube and mechanical thermostat is provided with in heat-insulation chamber, the flue gas mouth of sampling probe is communicated with Nafion drying tube with filtration unit successively by pipeline, the gas outlet of Nafion drying tube is communicated with secondary pretreatment unit by pipeline, described heating tape and heating ring stretch in heat-insulation chamber respectively by wire and are connected with mechanical thermostat.
The utility model can carry out pretreated sampling box to flue gas, and further, described filtration unit comprises SO
3filtrator, NH
3filtrator and dust removal filter, the flue gas mouth of described sampling probe by pipeline successively with SO
3filtrator, NH
3filtrator is communicated with dust removal filter, and the gas outlet of dust removal filter is stretched in heat-insulation chamber by pipeline and is communicated with the air intake opening of Nafion drying tube.
The utility model can carry out pretreated sampling box to flue gas, and further, described dust removal filter is 1 μm of stainless ceramic filtrator.
The utility model can carry out pretreated sampling box to flue gas, further, also back-blowing device is comprised in described heat-insulation chamber, described back-blowing device comprises air pressure-adjusting valve, gas-holder, variable valve, tensimeter and flowmeter, the air intake opening of described air pressure-adjusting valve is communicated with air feed equipment by pipeline, the gas outlet of air pressure-adjusting valve is communicated with the air intake opening of gas-holder by pipeline, gas-holder first gas outlet by pipeline successively with the blowback air inlet communication of variable valve, flowmeter and Nafion drying tube.
The utility model can carry out pretreated sampling box to flue gas, further, described back-blowing device also comprises blowback solenoid valve, and gas-holder second gas outlet connects blowback solenoid valve by pipeline, and blowback solenoid valve stretches into the blowback air inlet communication with sampling probe in heating chamber by pipeline.
The utility model can carry out pretreated sampling box to flue gas, and further, described blowback solenoid valve is connected with main frame PLC control system by wire.
The utility model can carry out pretreated sampling box to flue gas, and further, described back-blowing device also comprises stainless steel ball valve and rapid-acting coupling, and described gas-holder the 3rd gas outlet connects stainless steel ball valve and rapid-acting coupling successively by pipeline.
The utility model can carry out pretreated sampling box to flue gas, and further, described air feed equipment is compression gas tank or air compressor.
The utility model can carry out pretreated sampling box to flue gas, and further, described housing and baffle plate adopt 316L corrosion-resistant stainless steel to make, and baffle plate and housing are made into integration.
The utility model can carry out pretreated sampling box compared with prior art to flue gas, has following beneficial effect:
The utility model can carry out pretreated sampling box to flue gas, carries out, keep environment temperature at about 110-130 DEG C, eliminate the impact of low temperature environment on analysis result in the sampling in dehydration front end and the insulation can of filtration all at constant temperature.The utility model utilizes Nafion drying tube to remove the large quantity of moisture contained in flue gas, water vapour is on the impact of amalyzing substances when long-distance conveying to avoid flue gas, and water rem oval is high, effective, for secondary pre-service and detection alleviate pressure, analysis result accurate stable.The utility model adopts heating ring and heating tape to heat sampling probe and whole filtration unit, heat insulation foam is utilized to be incubated heating region, isolating with not needing the thermal insulation areas of heating simultaneously, avoiding the impact of high temperature on drying tube and back-blowing device.The utility model adopts mechanical thermostat to carry out the working condition of regulable control heating tape and heating ring, along with the difference of environment temperature, can regulate its concrete heating-up temperature, and more flexible, convenient in operation, the scope of application is wider.
The utility model is provided with SO after sampling
3filtrator and NH
3filtrator eliminates SO
3and NH
3on the impact of analyser and drying tube, ensure that the drying efficiency of Nafion drying tube, extend its serviceable life, and be provided with dust removal filter afterwards, carry out secondary filter, eliminate a large amount of dust granules contained in flue gas, prevent Nafion drying tube from blocking, ensure that the normal work of sampling box.
The utility model can carry out pretreated sampling box to flue gas, with back-blowing device, lasting blowback can be carried out to Nafion drying tube, timing blowback is carried out to sampling probe, the blowback of drying tube adopts the flow velocity of more than 3 times of flue gas flow rate in drying tube to carry out, and flue gas dew point can be down to about-15 DEG C, improve sampling efficiency, extend the serviceable life of Nafion drying tube, improve the filtering accuracy in sampling box.
Pretreated sampling box can be carried out to flue gas below in conjunction with accompanying drawing be described further of the present utility model.
Accompanying drawing explanation
Fig. 1 is the utility model can carry out pretreated sampling box structural representation to flue gas;
Embodiment
As shown in Figure 1, the utility model can carry out pretreated sampling box to flue gas and comprise housing 1, sampling probe 2, filtration unit, Nafion drying tube 4, back-blowing device 5, mechanical thermostat 6 and constant temperature system 7, and housing 1 adopts 316L corrosion-resistant stainless steel to make.Can carry out pretreated sampling box inside to flue gas is divided into two-layer up and down, and upper strata is heating chamber 11, and lower floor is heat-insulation chamber 12, and centre separates with baffle plate 13, and baffle plate 13 is 316L corrosion-resistant stainless steel material, is made into integration with housing 1.Be provided with sampling probe 2, filtration unit and constant temperature system 7 in heating chamber 11, filtration unit comprises SO
3filtrator 31, NH
3filtrator 32 and dust removal filter 33, the flue gas mouth 21 of sampling probe 2 directly stretches in flue after being outwards communicated with sampling feeler lever, the flue gas mouth 21 of sampling probe 2 inwardly by pipeline successively with SO
3filtrator 31, NH
3filtrator 32 is communicated with dust removal filter 33, and dust removal filter 33 is 1 μm of stainless ceramic filtrator; Constant temperature system 7 comprises insulation can 71, heating tape 72, heating ring 73 and heat insulation foam 74, sampling probe 2 and filtration unit are arranged in insulation can 71, heating ring 73 is enclosed within outside sampling probe 2, is provided with heating tape 72, is enclosed with heat insulation foam 74 outside insulation can 71 between insulation can 71 ectonexine.
Nafion drying tube 4, back-blowing device 5 and mechanical thermostat 6 is provided with in heat-insulation chamber 12, the gas outlet of dust removal filter 33 is stretched in heat-insulation chamber 12 by pipeline and is communicated with the air intake opening 41 of Nafion drying tube 4, and the gas outlet 42 of Nafion drying tube 4 is communicated with secondary pretreatment unit by pipeline; Heating tape 72 and heating ring 73 stretch in heat-insulation chamber 12 respectively by wire and are connected with mechanical thermostat 6.Back-blowing device 5 comprises air pressure-adjusting valve 51, gas-holder 52, variable valve 53, tensimeter 54, flowmeter 55, blowback solenoid valve 56, stainless steel ball valve 57 and rapid-acting coupling 58, the air intake opening of air pressure-adjusting valve 51 is communicated with air feed equipment by pipeline, air feed equipment is compression gas tank or air compressor, the gas outlet of air pressure-adjusting valve 51 is communicated with the air intake opening 521 of gas-holder 52 by pipeline, gas-holder first gas outlet 522 by pipeline successively with variable valve 53, flowmeter 55 is communicated with the blowback air import 43 of Nafion drying tube 4, gas-holder second gas outlet 523 connects blowback solenoid valve 56 by pipeline, blowback solenoid valve 56 is stretched in heating chamber 11 by pipeline and is communicated with the blowback air import 22 of sampling probe 2, blowback solenoid valve 56 is connected with main frame PLC control system by wire, gas-holder the 3rd gas outlet 524 connects stainless steel ball valve 57 and rapid-acting coupling 58 successively by pipeline.
It is as follows that the utility model can carry out the specific works process of pretreated sampling box to flue gas:
Sampling feeler lever directly stretches in flue, and flue gas enters in sampling box, successively at SO from sampling feeler lever by the flue gas mouth 21 of sampling probe 2 under suction function
3by the SO in sulfonating reaction removing flue gas in filtrator 31
3, at NH
3the NH in flue gas is removed in filtrator 32
3, in dust removal filter 33, remove the dust in flue gas, prevent drying tube from blocking, remove the water vapor in flue gas in Nafion drying tube 4, dry flue gas sends into secondary pretreatment unit by the gas outlet 42 of Nafion drying tube 4; Sampling, SO
3filtration, NH
3filtration and dust removal and filtration all complete in heating chamber 11, according to sampling environment temperature, by the heating state of mechanical thermostat 6 regulable control heating tape 72 and heating ring 73, the temperature in insulation can 71 is controlled within the scope of 110-130 DEG C, to prevent flue gas condensing.
It is as follows that detailed process is swept in blowback: first pressure gas enters air pressure-adjusting valve 51 and carry out pressure regulation process, and adjustment pressure is 8-10kg/cm
2remove the water, the oil that contain in pressure gas simultaneously, then the backflowing gas amount that gas-holder 52 keeps certain is entered, when starting to sample, open variable valve 53, controlling blowback air flow velocity by tensimeter 54 and flowmeter 55 is 15-20L/min, gas in gas-holder 52 enters Nafion drying tube 4 by pipeline, absorption unnecessary steam is on the adsorbent material purged, air is expelled to by blowback air outlet 44, in the process of sampling box work, the blowback air of drying tube purges and uninterruptedly carries out.Simultaneously, for preventing the impurity such as particle, the dust blocking sampling probe in flue gas, sampling probe being interrupted, regularly purging, controlling blowback solenoid valve 56 timing by setting main frame PLC control system and carry out blowback, meanwhile, also can by controlling to purge sampling probe manually.In addition, gas-holder 52 can be used as the blowback air source of the gas that other equipment blowbacks are swept, when other equipment need to carry out blowback clear away clean time, by rapid-acting coupling 58 and equipment connection to be purged, stainless steel ball valve 57 can be opened, blowback air purging carried out to equipment.
Above-described embodiment is only be described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that those of ordinary skill in the art make the technical solution of the utility model and improvement, all should fall in protection domain that the utility model claims determine.
Claims (9)
1. can carry out pretreated sampling box to flue gas, comprise housing, sampling probe and filtration unit, it is characterized in that: also comprise Nafion drying tube, mechanical thermostat and constant temperature system, described enclosure interior is divided into two-layer up and down, upper strata is heating chamber, lower floor is heat-insulation chamber, centre separates with baffle plate, in heating chamber, sampling probe is installed, filtration unit and constant temperature system, described constant temperature system comprises insulation can, heating tape, heating ring and heat insulation foam, sampling probe and filtration unit are arranged in insulation can, heating ring is enclosed within outside sampling probe, heating tape is provided with between insulation can ectonexine, heat insulation foam is enclosed with outside insulation can, Nafion drying tube and mechanical thermostat is provided with in heat-insulation chamber, the flue gas mouth of sampling probe is communicated with Nafion drying tube with filtration unit successively by pipeline, the gas outlet of Nafion drying tube is communicated with secondary pretreatment unit by pipeline, described heating tape and heating ring stretch in heat-insulation chamber respectively by wire and are connected with mechanical thermostat.
2. according to claim 1ly can carry out pretreated sampling box to flue gas, it is characterized in that: described filtration unit comprises SO
3filtrator, NH
3filtrator and dust removal filter, the flue gas mouth of described sampling probe by pipeline successively with SO
3filtrator, NH
3filtrator is communicated with dust removal filter, and the gas outlet of dust removal filter is stretched in heat-insulation chamber by pipeline and is communicated with the air intake opening of Nafion drying tube.
3. according to claim 2ly can carry out pretreated sampling box to flue gas, it is characterized in that: described dust removal filter is 1 μm of stainless ceramic filtrator.
4. according to claim 1ly can carry out pretreated sampling box to flue gas, it is characterized in that: in described heat-insulation chamber, also comprise back-blowing device, described back-blowing device comprises air pressure-adjusting valve, gas-holder, variable valve, tensimeter and flowmeter, the air intake opening of described air pressure-adjusting valve is communicated with air feed equipment by pipeline, the gas outlet of air pressure-adjusting valve is communicated with the air intake opening of gas-holder by pipeline, gas-holder first gas outlet by pipeline successively with the blowback air inlet communication of variable valve, flowmeter and Nafion drying tube.
5. according to claim 4ly can carry out pretreated sampling box to flue gas, it is characterized in that: described back-blowing device also comprises blowback solenoid valve, gas-holder second gas outlet connects blowback solenoid valve by pipeline, and blowback solenoid valve stretches into the blowback air inlet communication with sampling probe in heating chamber by pipeline.
6. according to claim 5ly can carry out pretreated sampling box to flue gas, it is characterized in that: described blowback solenoid valve is connected with main frame PLC control system by wire.
7. according to claim 4ly can carry out pretreated sampling box to flue gas, it is characterized in that: described back-blowing device also comprises stainless steel ball valve and rapid-acting coupling, described gas-holder the 3rd gas outlet connects stainless steel ball valve and rapid-acting coupling successively by pipeline.
8. can carry out pretreated sampling box to flue gas according to claim 4-7 any one, it is characterized in that: described air feed equipment is compression gas tank or air compressor.
9. can carry out pretreated sampling box to flue gas according to claim 1-7 any one, it is characterized in that: described housing and baffle plate adopt 316L corrosion-resistant stainless steel to make, and baffle plate and housing are made into integration.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201520729927.9U CN204964265U (en) | 2015-09-18 | 2015-09-18 | Sampling case of preliminary treatment can carry out flue gas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201520729927.9U CN204964265U (en) | 2015-09-18 | 2015-09-18 | Sampling case of preliminary treatment can carry out flue gas |
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Publication Number | Publication Date |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109100184A (en) * | 2018-07-26 | 2018-12-28 | 杜瑞青 | It is a kind of to pre-process sampling collector for the underground mine gas containing a large amount of dusts |
CN109708929A (en) * | 2018-07-24 | 2019-05-03 | 深圳市云顶自动化技术有限公司 | A kind of flue gas sampling water scavenging system of CEMS |
CN110980007A (en) * | 2019-12-02 | 2020-04-10 | 深圳国技环保技术有限公司 | Packing box for smoke and dust sampling equipment with pre-cooling and condensate water functions |
CN113154486A (en) * | 2021-03-09 | 2021-07-23 | 深圳广杰环保(集团)有限公司 | Remote control system of oil fume purifier |
-
2015
- 2015-09-18 CN CN201520729927.9U patent/CN204964265U/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109708929A (en) * | 2018-07-24 | 2019-05-03 | 深圳市云顶自动化技术有限公司 | A kind of flue gas sampling water scavenging system of CEMS |
CN109100184A (en) * | 2018-07-26 | 2018-12-28 | 杜瑞青 | It is a kind of to pre-process sampling collector for the underground mine gas containing a large amount of dusts |
CN109100184B (en) * | 2018-07-26 | 2020-11-20 | 嘉兴嘉卫检测科技有限公司 | Underground mine gas pretreatment sampling collector containing a large amount of dust |
CN110980007A (en) * | 2019-12-02 | 2020-04-10 | 深圳国技环保技术有限公司 | Packing box for smoke and dust sampling equipment with pre-cooling and condensate water functions |
CN113154486A (en) * | 2021-03-09 | 2021-07-23 | 深圳广杰环保(集团)有限公司 | Remote control system of oil fume purifier |
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Legal Events
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---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 |