CN207716583U - Local cooling system in a kind of nuclear island of nuclear power station using runner cooling - Google Patents
Local cooling system in a kind of nuclear island of nuclear power station using runner cooling Download PDFInfo
- Publication number
- CN207716583U CN207716583U CN201721694920.3U CN201721694920U CN207716583U CN 207716583 U CN207716583 U CN 207716583U CN 201721694920 U CN201721694920 U CN 201721694920U CN 207716583 U CN207716583 U CN 207716583U
- Authority
- CN
- China
- Prior art keywords
- outlet
- entrance
- triple valve
- runner
- rotary wheel
- 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
- 238000001816 cooling Methods 0.000 title claims abstract description 54
- 230000008929 regeneration Effects 0.000 claims abstract description 31
- 238000011069 regeneration method Methods 0.000 claims abstract description 31
- 239000012782 phase change material Substances 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000013535 sea water Substances 0.000 claims abstract description 27
- 239000013505 freshwater Substances 0.000 claims abstract description 25
- 238000003860 storage Methods 0.000 claims abstract description 16
- 238000001035 drying Methods 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 238000004140 cleaning Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims 1
- 230000009466 transformation Effects 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000009825 accumulation Methods 0.000 abstract 2
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 230000002045 lasting effect Effects 0.000 abstract 1
- 230000001172 regenerating effect Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000002915 spent fuel radioactive waste Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
Landscapes
- Drying Of Gases (AREA)
Abstract
Local cooling system in a kind of nuclear island of nuclear power station using runner cooling, belongs to special area environmental Kuznets Curves field.The utility model is mainly for solving the heat accumulation problems of the local environments such as master control room, electronic equipment area in the nuclear island of nuclear power station of coastal area.It include mainly outdoor air inlet (1), breeze fan (2), device for drying and filtering (3), runner cooling section (4), first temperature sensor (5), First partial environment air outlet (6), second temperature sensor (7), second local environment air outlet (8), seawater inlet (9), first water pump (10), first triple valve (11), rotary wheel regeneration section (12), second triple valve (13), seawer outlet (14), second water pump (15), freshwater storage case (16).The utility model uses seawater as low-temperature receiver, and the lasting accumulation of heat and heat release of phase-change material are realized in the form of runner, and energy saving of system environmental protection, reliability is high, is recycled the heat dissipation problem that operation continuation realizes coastal area master control room of nuclear power station and electronic equipment area.
Description
Technical field
The utility model is related to local cooling systems in a kind of nuclear island of nuclear power station cooled down using runner, belong to special area
Environmental Kuznets Curves field.
Background technology
In recent years, nuclear energy as energy form that is safe and clean, economic and can utilizing on a large scale in the world by
Gradually approved, with the rapid development of nuclear industry, nuclear power operation security problem increasingly should not be underestimated.The master of nuclear power station
Control room (MCR, Main Control Room) is located at the positions nuclear island absolute altitude+20.00m, be bed rearrangement nuclear power station control in
The main activities region of the heart and nuclear power station operating personnel are responsible for sending out unit operation instruction, monitoring device operating status, thing
Therefore the tasks such as alarm and processing.Master control room is responsible for the important duty of nuclear island security control, is operating personnel therein and safety
It is to ensure the important component of nuclear power production safety that grade instrument and control device, which are provided suitable for thermal environment condition,.
From Human Engineering and ergonomics angle, using suitable air handling system, for master control room of nuclear power station
Operating personnel and equipment build rational working environment, reduce the physiology and Psychological inadaptability of operations staff, can improve personnel's work
Make efficiency, reduce human operational error lead, ensure equipment stable operation, it is therefore necessary to master control room personnel and equipment work
Environment carries out local cooling.
In recent years, have relevant programme for the cooling of master control room to be suggested, as patent ZL201510131657.6 is proposed
A kind of passive refrigerated air-conditioning system of master-control room of nuclear power plant, using compressed air swell refrigeration scheme obtain Cryogenic air give
Enter in master control room, but compressed air swell refrigeration will necessarily bring huge noise, it is especially huge in air output,
It will necessarily influence the normal work of master control room personnel.Patent ZL201410725532.1 proposes a kind of non-energy of master control room of nuclear power station
Dynamic room air cooling and purification system, the cooling of master control room is completed using the mode of ice storage, and the program needs ice-reserving in advance,
It can not open and can be used, and energy saving of system is bad.Patent ZL201210127020.6 proposes a kind of for master control room
Passive air-conditioning system carries out absorption type refrigerating by spentnuclear fuel pond waste heat.Though there are a large amount of waste heats in spentnuclear fuel, there is also
Radioactivity, there are security risks after the air conditioner integrated used with personnel.
Reliability and it is energy saving be in nuclear island the key areas Local Air-cooling System such as master control room design two big principles.This practicality
It is novel that widely applied runner in rotary wheel dehumidifying is added into phase-change material, it is applied to filed of air conditioning；And utilize most nuclear powers
It stands the advantage by the sea of foundation, using seawater as low-temperature receiver, cooling system and regenerative system start simultaneously, it is ensured that system continues
Stable operation.
Invention content
The purpose of this utility model is to provide local cooling system in a kind of nuclear island of nuclear power station cooled down using runner, is applicable in
In the cooling of the key areas such as master control room, canyon in the nuclear power station that seashore is built.
The system is mainly made of cooling system and runner cleaning systems.
Wherein cooling system is by outdoor air inlet (1), breeze fan (2), device for drying and filtering (3), runner cooling section
(4), the first temperature sensor (5), First partial environment air outlet (6), second temperature sensor (7), the second local environment are sent
Air port (8), seawater inlet (9), the first water pump (10), the first triple valve (11), rotary wheel regeneration section (12), the second triple valve
(13), seawer outlet (14) forms.
Runner cleaning systems are by the first triple valve (11), rotary wheel regeneration section (12), the second triple valve (13), the second water pump
(15), freshwater storage case (16) forms.
It is seawater inlet that first triple valve (11), which has two entrances and one outlet, first entrance, and first outlet is sea
Water fresh water shares outlet, and second entrance is fresh water entrance,；
Second triple valve (13) tool there are one entrance and two outlet, first entrance be seawater fresh water share entrance, first
Outlet is seawer outlet, and second outlet is water outlet；
Wherein the outlet of outdoor air inlet (1) is connected with one end of breeze fan (2), the other end of breeze fan (2)
It is connected with the entrance of device for drying and filtering (3), the outlet of device for drying and filtering (3) is connected with the entrance of runner cooling section (4), and runner is cold
But the outlet of section (4) is divided into two branches, respectively with First partial environment air outlet (6) and the second local environment air outlet (8)
It is connected.
The outlet of seawater inlet (9) is connected with the entrance of the first water pump (10), the outlet and the one or three of the first water pump (10)
The first entrance of port valve (11) is connected, and the outlet of the first triple valve (11) is connected with the entrance of rotary wheel regeneration section (12), and runner is again
The outlet of raw section (12) is connected with the entrance of the second triple valve (13), the first outlet and seawer outlet of the second triple valve (13)
(14) it is connected.
The outlet of freshwater storage case (16) is connected with the second entrance of the first triple valve (11), and the first triple valve (11) go out
Mouth is connected with the entrance of rotary wheel regeneration section (12), and the outlet of rotary wheel regeneration section (12) is connected with the entrance of the second triple valve (13),
The second outlet of second triple valve (13) is connected with the entrance of the second water pump (15), the outlet of the second water pump (15) and freshwater storage
The entrance of case (16) is connected.
First temperature sensor (5) is mounted in First partial environment air outlet (6), second temperature sensor (7) installation
In the second local environment air outlet (8).
When cooling system is run, breeze fan (2) is opened, and the air introduced by outdoor air inlet (1) is through breeze fan
(2) it drives, flows into flow into after dehumidifying in device for drying and filtering (3) and complete temperature-fall period in runner cooling section (4)；Air after cooling
Master control room and equipment room are sent by First partial environment air outlet (6) and the second local environment air outlet (8).Runner cools down at this time
Phase-change material heat absorption in section (4) becomes liquid.
When cooling system is run, runner uniform rotation, regenerative system is run simultaneously.When regenerative system is run, first is closed
The second outlet of the second entrance and the second triple valve (13) of triple valve (11), the first water pump (10) is opened, by seawater inlet (9)
Seawater is introduced, rotary wheel regeneration section (12) is flowed into after the first triple valve (11), is changed with the phase-change material in rotary wheel regeneration section (12)
After heat, seawer outlet (14) is flowed into through the second triple valve (13).The phase change material releases heat in rotary wheel regeneration section (12) is again at this time
Become solid-state.
When cooling system and regenerative system are closed, the first entrance and the second triple valve (13) of the first triple valve (11) are closed
First outlet, the second water pump (15) opens, second entrance of the fresh water through the first triple valve (11) in freshwater storage case (16)
Rotary wheel regeneration section (12) is flowed into, because of impurity that flow through seawater generates between cleaning phase-change material memotron (17)；After the completion of cleaning,
Second outlet of the fresh water through the second triple valve (13) flows into the second water pump (15), is driven through the second water pump (15) and flows into freshwater storage
Case (16) completes cycle.
The runner cooling section (4) and rotary wheel regeneration section (12) is an entirety, is at the uniform velocity turned in system operation
It is dynamic, continuous alternate position.
Include the phase-change material memotron of multiple sealings in the runner cooling section (4) and rotary wheel regeneration section (12)
(17), phase-change material memotron (17) is horizontally arranged in runner cooling section (4) and rotary wheel regeneration section (12), each phase-change material storage
Deposit between pipe (17) that there are gaps for air circulation.
The phase-change material sealed in the phase-change material memotron (17) can be that latent heat is big under paraffin or other room temperature
Phase-change material.
Description of the drawings
Attached drawing 1 is the principle of the present invention figure.
Label title in attached drawing 1：1. outdoor air inlet, 2. breeze fans, 3. devices for drying and filtering, 4. runners cool down
Section, 5. first temperature sensors, 6. First partial environment air outlets, 7. second temperature sensors, the air-supply of 8. second local environments
Mouth, 9. seawater inlets, 10. first water pumps, 11. first triple valves, 12. rotary wheel regeneration sections, 13. second triple valves, 14. seawater go out
Mouth, 15. second water pumps, 16. freshwater storage casees.
Attached drawing 2 is rotaring wheel structure figure.
Label title in attached drawing 2：4. runner cooling section, 12. rotary wheel regeneration sections, 17, phase-change material memotron.
Specific implementation mode
As shown in Figure 1, local cooling system includes mainly outdoor air in a kind of nuclear island of nuclear power station cooled down using runner
Entrance 1, breeze fan 2, device for drying and filtering 3, runner cooling section 4, the first temperature sensor 5, First partial environment air outlet 6,
Second temperature sensor 7, the second local environment air outlet 8, seawater inlet 9, the first water pump 10, the first triple valve 11, runner are again
Raw section 12, the second triple valve 13, seawer outlet 14, the second water pump 15, freshwater storage case 16.
It is sealed with phase-change material in phase-change material memotron 17, includes a large amount of in runner cooling section 4 and rotary wheel regeneration section 12
Phase-change material memotron 17, memotron 17 are horizontally arranged in runner cooling section 4 and rotary wheel regeneration section 12, between each memotron
There are gaps to flow through convenient for water and air.
When running, runner cooling section 4 and rotary wheel regeneration section 12 at the uniform velocity rotate so that phase-change material has sufficient
The cooling and recovery time.Outdoor air is pumped into system by breeze fan 2 by outdoor air inlet 1, since seaside air is more damp
It is wet, therefore enter after device for drying and filtering 3 filters into the air of system and enter back into the reduction temperature of runner cooling section 4.After cooling
Air is sent into different local environment air outlets according to different air output demands.Phase-change material stores up in runner cooling section 4 at this time
Depositing the heat absorption of the phase-change material in pipe 17 becomes liquid, with the rotation of runner, the phase-change material memotron with liquid state phase change material
In 17 rotation to the regions of rotary wheel regeneration section 12.
At the same time, the first water pump 10 is opened, and seawater enters system by seawater inlet 9, laggard through the first triple valve 11
Enter rotary wheel regeneration section 12.Seawater exchanges heat with the phase-change material memotron 17 in rotary wheel regeneration section 12, in phase-change material memotron 17
Phase change material releases heat be converted into solid-state, with the rotation of runner, phase-change material memotron 17 with solid phase change material rotates
Into the region of runner cooling section 4.Seawater after the completion of heat exchange flows into seawer outlet 14 through the second triple valve 13, flows into the sea.
Due to the corrosiveness of seawater, system operation must be turned on cleaning systems and is rinsed to runner afterwards for a period of time.
The first outlet of the first entrance and the second triple valve 13 of the first triple valve 11 is closed, the second water pump 15 is opened, freshwater storage case
The second entrance of fresh water in 16 through the first triple valve 11 flows into rotary wheel regeneration section 12, between cleaning phase-change material memotron 17 because
The salt science and technology and impurity that flow through seawater generates；After the completion of cleaning, second outlet of the fresh water through the second triple valve 13 flows into second
Water pump 15 drives through the second water pump 15 and flows into 16 completion cycle of freshwater storage case.The fresh water stored in freshwater storage case 16 need to be determined
Phase is replaced.
The present invention uses the runner comprising phase-change material as cooling equipment, can take into account simultaneously the cooling of phase-change material with again
Raw process, continuous running ability are strong；It is more energy saving using seawater as low-temperature receiver；It is added to of the present invention after fresh water cleaning systems
The nuclear island of nuclear power station cooled down using runner in local cooling system more easy care, reliability is stronger.
Claims (4)
1. local cooling system in a kind of nuclear island of nuclear power station cooled down using runner, it is characterised in that：
It is made of cooling system and runner cleaning systems；
Wherein cooling system is by outdoor air inlet (1), breeze fan (2), device for drying and filtering (3), runner cooling section (4),
One temperature sensor (5), First partial environment air outlet (6), second temperature sensor (7), the second local environment air outlet
(8), seawater inlet (9), the first water pump (10), the first triple valve (11), rotary wheel regeneration section (12), the second triple valve (13), sea
Water out (14) forms；
Runner cleaning systems by the first triple valve (11), rotary wheel regeneration section (12), the second triple valve (13), the second water pump (15),
Freshwater storage case (16) forms；
It is seawater inlet that first triple valve (11), which has two entrances and one outlet, first entrance, and first outlet is that seawater is light
Water shares outlet, and second entrance is fresh water entrance；
For second triple valve (13) tool there are one entrance and two outlets, first entrance is that seawater fresh water shares entrance, first outlet
For seawer outlet, second outlet is water outlet；
Wherein the outlet of outdoor air inlet (1) is connected with one end of breeze fan (2), the other end of breeze fan (2) with it is dry
The entrance of dry filter (3) is connected, and the outlet of device for drying and filtering (3) is connected with the entrance of runner cooling section (4), runner cooling section
(4) outlet is divided into two branches, is connected respectively with First partial environment air outlet (6) and the second local environment air outlet (8)；
The outlet of seawater inlet (9) is connected with the entrance of the first water pump (10), outlet and the first triple valve of the first water pump (10)
(11) first entrance is connected, and the outlet of the first triple valve (11) is connected with the entrance of rotary wheel regeneration section (12), rotary wheel regeneration section
(12) outlet is connected with the entrance of the second triple valve (13), first outlet and seawer outlet (14) phase of the second triple valve (13)
Even；
The outlet of freshwater storage case (16) is connected with the second entrance of the first triple valve (11), the outlet of the first triple valve (11) with
The entrance of rotary wheel regeneration section (12) is connected, and the outlet of rotary wheel regeneration section (12) is connected with the entrance of the second triple valve (13), and second
The second outlet of triple valve (13) is connected with the entrance of the second water pump (15), outlet and the freshwater storage case of the second water pump (15)
(16) entrance is connected；
First temperature sensor (5) is mounted in First partial environment air outlet (6), and second temperature sensor (7) is mounted on the
In two local environment air outlets (8).
2. local cooling system in a kind of nuclear island of nuclear power station cooled down using runner according to claim 1, feature are existed
In：The runner cooling section (4) and rotary wheel regeneration section (12) is an entirety, the uniform rotation in system operation, no
Disconnected alternate position.
3. local cooling system in a kind of nuclear island of nuclear power station cooled down using runner according to claim 1, feature are existed
In：Include the phase-change material memotron (17) of multiple sealings, phase transformation in the runner cooling section (4) and rotary wheel regeneration section (12)
Material memotron (17) is horizontally arranged in runner cooling section (4) and rotary wheel regeneration section (12), each phase-change material memotron (17)
Between there are gaps for air circulation.
4. local cooling system in a kind of nuclear island of nuclear power station cooled down using runner according to claim 1, feature are existed
In：The First partial environment air outlet (6) and the second local environment air outlet (8) is and master control room is connect with equipment machine room
Air outlet, air outlet number increases or decreases according to actual demand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721694920.3U CN207716583U (en) | 2017-12-04 | 2017-12-04 | Local cooling system in a kind of nuclear island of nuclear power station using runner cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721694920.3U CN207716583U (en) | 2017-12-04 | 2017-12-04 | Local cooling system in a kind of nuclear island of nuclear power station using runner cooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207716583U true CN207716583U (en) | 2018-08-10 |
Family
ID=63059854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721694920.3U Expired - Fee Related CN207716583U (en) | 2017-12-04 | 2017-12-04 | Local cooling system in a kind of nuclear island of nuclear power station using runner cooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207716583U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816773A (en) * | 2017-12-04 | 2018-03-20 | 南京工业大学 | Local cooling system in a kind of nuclear island of nuclear power station cooled down using runner |
| CN112611244A (en) * | 2020-11-26 | 2021-04-06 | 中国核电工程有限公司 | Passive cold accumulation type heat exchange device |
-
2017
- 2017-12-04 CN CN201721694920.3U patent/CN207716583U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816773A (en) * | 2017-12-04 | 2018-03-20 | 南京工业大学 | Local cooling system in a kind of nuclear island of nuclear power station cooled down using runner |
| CN112611244A (en) * | 2020-11-26 | 2021-04-06 | 中国核电工程有限公司 | Passive cold accumulation type heat exchange device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103353242B (en) | Temperature-controllable dry and wet-open and closed integrated cooling tower system | |
| CN103940145A (en) | Multifunctional combined supply type integrated air conditioner unit for data rooms | |
| CN102121392A (en) | Heat-radiating, recovering and cooling system for mine | |
| CN207716583U (en) | Local cooling system in a kind of nuclear island of nuclear power station using runner cooling | |
| CN203479060U (en) | Temperature-controllable dry and wet-opening and closing integrated type cooling tower system | |
| CN203160322U (en) | Device for fetching water from air | |
| CN103940161A (en) | Method and device for defrosting through combination operation of multiple air heat source heat exchangers | |
| CN104567104B (en) | It is a kind of based on freeze regeneration and its recuperation of heat solution heat pump system | |
| CN102777989B (en) | Heat pump air-conditioning unit system suitable for high-humidity low-temperature environment of underground hydropower station cavern | |
| CN204301357U (en) | Water chilling unit energy-saving circulating running system | |
| CN203928227U (en) | Water-cooled cooling water air conditioner system based on fire cistern and cooling tower | |
| CN208671416U (en) | A kind of refrigeration heating system using low-temperature industrial recirculated cooling water | |
| CN208804908U (en) | It is a kind of to utilize electric power plant circulating water exhaust heat refrigerating heating system | |
| US20130199222A1 (en) | High Efficiency Cooling System | |
| CN103185419A (en) | Ice slurry cold water heat pump unit | |
| CN207740140U (en) | The economic benefits and social benefits cooling device of Long-distance Transmission Pipeline booster station compressor | |
| CN106989540A (en) | Two-shipper heat source tower heat pump and solution regeneration method with solution regeneration function | |
| CN106949585A (en) | A kind of computer-room air conditioning system | |
| CN107816773A (en) | Local cooling system in a kind of nuclear island of nuclear power station cooled down using runner | |
| CN103673392A (en) | Heat exchanging type air energy development and application method and equipment and refrigerating equipment waste heat utilization method | |
| CN206496460U (en) | Whole year operation air-conditioning cooling device | |
| CN206410353U (en) | A kind of positive displacement Double-working-condition multifunctional water air-cooled unit | |
| CN207006631U (en) | Double main frame heat source tower heat pump systems with solution regeneration function | |
| CN109959097A (en) | A kind of centralization cold source cooling cycle system | |
| CN206281111U (en) | A kind of pre-cooling of fresh air system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180810 Termination date: 20211204 |