CN208343409U - A kind of plastic products cooling water of extruding machine circulatory system - Google Patents
A kind of plastic products cooling water of extruding machine circulatory system Download PDFInfo
- Publication number
- CN208343409U CN208343409U CN201820672657.6U CN201820672657U CN208343409U CN 208343409 U CN208343409 U CN 208343409U CN 201820672657 U CN201820672657 U CN 201820672657U CN 208343409 U CN208343409 U CN 208343409U
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- CN
- China
- Prior art keywords
- water
- pipeline
- plastic products
- cooling
- back pool
- 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
- 239000000498 cooling water Substances 0.000 title claims abstract description 37
- 239000004033 plastic Substances 0.000 title claims abstract description 34
- 229920003023 plastic Polymers 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 150
- 238000001816 cooling Methods 0.000 claims abstract description 59
- 230000000712 assembly Effects 0.000 claims abstract description 10
- 238000000429 assembly Methods 0.000 claims abstract description 10
- 238000004891 communication Methods 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 description 24
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000003020 moisturizing effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001960 triggered effect Effects 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
A kind of plastic products cooling water of extruding machine circulatory system.Existing cooling water recirculation system is mainly solved using cooling column cooling efficiency is low, speed of production is slow, using the water cooler then high problem of energy consumption.It is characterized by: plastic products extruder is connected to back pool by water return pipeline, and filter assemblies are provided on water return pipeline；Back pool passes through the first pipeline connection ground burying heat exchange tube road system, is provided with the first water pump on the first pipeline；Ground burying heat exchange tube road system connectivity water cooling pond；Water cooling pond is connected to plastic products extruder by inlet pipeline, is provided with the second water pump on inlet pipeline；The back pool and water cooling pond are in closed state.It the advantage is that the state that entire cooling water recirculation system is in Dynamic Closed and automatically controls, water quality and the water temperature not external environment influence other than by production line substantially, technological temperature is stablized, and energy conservation and environmental protection.
Description
Technical field
The utility model relates to a kind of cooling water recirculation systems, recycle more particularly to a kind of plastic products cooling water of extruding machine
System.
Background technique
Cooling water is that product sizing is cooling during plastic products extrusion, equipment die is cooling and lubricating oil etc. is cooling
Essential refrigerant, cooling water all have higher temperature when leaving production line, generally pass through cooling column or water cooler
It is cooling.When existing plastic products cooling water of extruding machine is freezed by cooling tower, it is poor that there are cooling effects, limits speed of production, daytime
Night or Seasonal Temperature Difference are bigger than normal, cause the control of production technology temperature unstable, product quality constantly fluctuates, by cooling tower ambient enviroment
Influence is easily mixed into impurity, and the contradictions such as moisture evaporation loss is big in outdoor radiation processes, and when by water cooler refrigeration,
Then there are the contradictions such as energy consumption is larger, maintenance cost is high.
Utility model content
In order to overcome the shortcomings of background technique, the utility model provides a kind of plastic products cooling water of extruding machine cyclic system
System solves existing cooling water recirculation system using cooling column cooling efficiency is low, speed of production is slow, and using water cooler, then energy consumption is high
The problem of.
Technical solution adopted by the utility model: a kind of plastic products cooling water of extruding machine circulatory system, including plastics
Product extruder, back pool, water cooling pond, ground burying heat exchange tube road system；The plastic products extruder is connected to by water return pipeline
Back pool, and filter assemblies are provided on the water return pipeline；The back pool passes through the first pipeline connection ground burying heat exchange tube road
System, and the first water pump is provided on first pipeline；The ground burying heat exchange tube road system connectivity water cooling pond；The water cooling pond
It is connected to plastic products extruder by inlet pipeline, and is provided with the second water pump on the inlet pipeline；The back pool with it is cold
Sink top is arranged seal cover board or is located at subsurface in house, is in closed state.
The filter assemblies include the first filter being serially connected and the second filter, and the first filter uses certainly
Dynamic backwash filter, second filter use accurate filter.
The first bypass line controlled by the first valve is additionally provided at the first filter, second filter is set
It is equipped with the second bypass line controlled by the second valve.
It is provided at the highest point of the first pipeline between first water pump and ground burying heat exchange tube road system automatically into row
Air valve.
The back pool and water cooling pond are in integral structure, and centre is separated by partition, partition be equipped with connection back pool with
The overflow port of water cooling pond；The back pool is connected with the first water supply pipe, and the first tap water of control is equipped in the back pool
First ball-cock assembly of pipeline opening and closing, and first ball-cock assembly and overflow port are in same level height；The water cooling pond connection
There is the second water supply pipe, the second ball-cock assembly of control the second water supply pipe opening and closing, second floating ball are equipped in water cooling pond
Valve is lower than the level height of overflow port.
The communication port of first pipeline and back pool and the communication port of inlet pipeline and water cooling pond are in same level position
It sets.
The level height of the water return pipeline and back pool communication port is higher than overflow port, is also connected at the top of the back pool
Heat removal pipeline is connected with exhaust fan on the heat removal pipeline.
The import of first pipeline is located at the near exit of water return pipeline；The import of the inlet pipeline is located at buried change
The near exit of pipe line system.
The buried use of the water return pipeline, inlet pipeline, and it is located at frost zone or less.
The water return pipeline, ground burying heat exchange tube road system are all made of high efficient heat exchanging polyethylene kind pipeline, the inlet pipeline
Using insulation pipeline.
The beneficial effects of the utility model are: using above scheme, entire cooling water recirculation system be in Dynamic Closed and
The state of automatic control, water quality and the water temperature external environment influence other than by production line substantially, technological temperature are stablized, reduce because
Cooling water evaporation and the problem of need continuous moisturizing, while filter assemblies are set on water return pipeline, place is filtered to cooling water
Reason guarantees the continuous improvement of cyclic process water quality, avoids the blocking of water cooling plant and pipeline, it is ensured that product uniformly cools down, remaining
Stress is small, and free from admixture, which scratches product, influences appearance and continuous production problem, and only relies on the first water pump and mention with the second water pump
For power, energy consumption is reduced, reaches the minimum of electric energy spent by same cooling water temperature, belongs to the green green that country vigorously advocates
Power-saving technology.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment plastic products cooling water of extruding machine circulatory system.
Fig. 2 is the structural schematic diagram of the utility model embodiment back pool and water cooling pond.
Fig. 3 is the utility model embodiment back pool attachment structure schematic diagram.
Fig. 4 is the utility model embodiment water cooling pond attachment structure schematic diagram.
Fig. 5 is the structural schematic diagram of the utility model embodiment filter assemblies.
1- plastic products extruder in figure, 2- back pool, 3- water cooling pond, 4- ground burying heat exchange tube road system, 5- water return pipeline,
6- filter assemblies, 61- first filter, the second filter of 62-, the first valve of 63-, the first bypass line of 64-, the second valve of 65-
Door, the second bypass line of 66-, the first pipeline of 7-, the first water pump of 8-, 9- inlet pipeline, the second water pump of 10-, 11- overflow port, 12-
Automatic inlet-outlet valve, the first water supply pipe of 13-, the first ball-cock assembly of 14-, the second water supply pipe of 15-, the second ball-cock assembly of 16-,
17- heat removal pipeline, 18- exhaust fan.
Specific embodiment
The utility model embodiment is described further with reference to the accompanying drawing:
As shown, a kind of plastic products cooling water of extruding machine circulatory system, including plastic products extruder 1, back pool
2, water cooling pond 3, ground burying heat exchange tube road system 4.
The plastic products extruder 1 is connected to back pool 2 by water return pipeline 5, and is provided on the water return pipeline 5
Filter component 6；The back pool 2 is connected to buried heat exchanging pipe system 4 by the first pipeline 7, and is provided on first pipeline 7
First water pump 8；Ground burying heat exchange tube road system 4 is connected to water cooling pond 3；The water cooling pond 3 is connected to plastics system by inlet pipeline 9
Product extruder 1, and the second water pump 10 is provided on the inlet pipeline 9；The back pool 2 and water cooling pond 3 be provided with cover board or
The subsurface in house is at closed state.
Cooling water flows into back pool 2 after carrying out heat exchange with plastic products extruder 1, through water return pipeline 5, and first
Water pump 8 can by the water in back pool 2 by ground burying heat exchange tube road system 4 enter water cooling pond 3, by ground end low temperature to cooling water into
Water in water cooling pond 3 can be sent into plastic products extruder 1, cooled down to product by row one cooling exchange, the second water pump 10,
To form a cooling water recirculation system.
The state that entire cooling water recirculation system is in Dynamic Closed and automatically controls, water quality and water temperature are not produced substantially
The problem of external environment influence other than line, technological temperature are stablized, and reduction needs continuous moisturizing because of cooling water evaporation, while returning
Filter assemblies are set in water lines, processing is filtered to cooling water, guarantees the continuous improvement of cyclic process water quality, avoids water cooling
The blocking of device and pipeline, it is ensured that product uniformly cools down, and residual stress is small, and free from admixture, which scratches product, influences appearance and production continuously
Property problem, and only rely on the first water pump and the second water pump and power be provided, reduce energy consumption, reach same cooling water temperature and consumed
The electric energy taken is minimum, belongs to the green green energy conservation technology that country vigorously advocates.
As shown, the filter assemblies 6 include the first filter 61 being serially connected and the second filter 62, the first mistake
Filter 61 uses automatic backwashing filter, and the larger particles impurity in water return pipeline 5 can be made to be filtered herein, and because impurity
Quantity is more, easily blocking filter, so using have automatic back-flushing function filter, reduce manual intervention bring at
This, while lightening the load to the second filter 62, cost is reduced, and the second filter 62 uses accurate filter, higher essence
The safety in production that water quality has been completely secured in degree uses, and first filter 61 and the second filter 62 be serially connected, can make water quality by
Grade filtering reduces purification cost.
Further, the first bypass line 64 controlled by the first valve 63 is additionally provided at the first filter 61,
Second filter 62 is provided with the second bypass line 66 controlled by the second valve 65, when first filter 61 and the second mistake
Filter 62 breaks down, and can also realize pipeline connection by the first bypass line 64 and the second bypass line 66, avoids directly stifled
Plug causes to stop working.
As shown, being set at the highest point of the first pipeline 7 between first water pump 8 and ground burying heat exchange tube road system 4
It is equipped with automatic inlet-outlet valve 12, fully ensures that the first water pump 8 starts to the water supply of ground burying heat exchange tube road system 4, the sky in pipeline
Gas can sufficiently be discharged automatically, and cycle heat exchange cannot be carried out normal through ground burying heat exchange tube road system 4 by eliminating water caused by vapour lock,
During termination of pumping can also timely automated sucking eliminating atmosphere water hammer due to cavities collapsing destroyed caused by water pump.
As shown, the back pool 2 is in integral structure with water cooling pond 3, centre is separated by partition, and partition, which is equipped with, to be connected
The overflow port 11 of logical back pool 2 and water cooling pond 3；The back pool 2 is connected with the first water supply pipe 13, in the back pool 2
The first ball-cock assembly 14 equipped with control the first water supply pipe 13 opening and closing, and first ball-cock assembly 14 and overflow port 11 are in same
One level height；The water cooling pond 3 is connected with the second water supply pipe 15, and the second water supply pipe of control is equipped in water cooling pond 3
Second ball-cock assembly 16 of 15 opening and closings, second ball-cock assembly 16 are lower than the level height of overflow port 11.
3 inner storing water amount of water cooling pond is insufficient, will lead to the normal use for being unable to satisfy the second water pump 10, influences normally to produce,
Therefore when water level is lower than certain value in water cooling pond 3, the second water supply pipe 15 can be opened by the second ball-cock assembly 16, is mended rapidly
Water guarantees the normal work of the second water pump 10.
The overflow port 11 of the back pool 2 and water cooling pond 3 can be automatically replenished the water in balance back pool 2 and water cooling pond 3
Amount avoids production line booting hourly water consumption big, and return water is more to be had little time to return to water cooling pond 3 by ground burying heat exchange tube road system 4, is made
It is uneven at two pond water storages, the second water supply pipe 15 is triggered too early supplements tap water.
When back pool 2 and less 3 total Water of water cooling pond, the water in back pool 2 cannot reach to be supplemented to 3 overflow of water cooling pond
When the purpose of water, the first ball-cock assembly 14 in back pool can also open the first water supply pipe 13, be mended ahead of time to back pool
Water is rapidly reached the overflow purpose of overflow port by return water and moisturizing, guarantees production.
Further, at the communication port of the communication port of first pipeline 7 and back pool 2 and inlet pipeline 9 and water cooling pond 3
In the same horizontal position, it is further ensured that overflow port 11, the first ball-cock assembly 14,16 triple protection of the second ball-cock assembly realize recirculated water
The balance of system.
As shown, the water return pipeline 5 and the level height of 2 communication port of back pool are higher than overflow port 11, the return water
It is also connected with heat removal pipeline 17 at the top of pond 2, is connected with exhaust fan 18 on the heat removal pipeline 17, it is ensured that return water has in air
Effect heat dissipation, and heat can be discharged to exterior space rapidly by exhaust fan 18 and heat removal pipeline 17, it avoids influencing pool environment temperature
With the heat dissipation of return water.
As shown, the import of first pipeline 7 is located at the near exit of water return pipeline 5；The inlet pipeline 9 into
Mouth is located at the near exit of ground burying heat exchange tube road system 4, it is ensured that production return water is rapidly reached the progress of ground burying heat exchange tube road system 4
Heat exchange, avoids the reduction of cooling efficiency caused by hot water convection current not in time, and the cold water by ground burying heat exchange tube road system 4 is replenished in time
It to production line, avoids the residence time in pond too long, water temperature is caused to increase, be further ensured that circulating cooling effect.
As shown, the water return pipeline 5 and the buried use of inlet pipeline 9, and transverse tube road in frost zone hereinafter, guaranteeing back
Water temperature in water lines 5 and inlet pipeline 9 is not influenced by surface temperature.
In addition, the water return pipeline 5 uses high efficient heat exchanging polyethylene kind pipeline, can make return water heat in a limited space and
Soil is conducted in time as far as possible, the inlet pipeline 9 uses insulation pipeline, can effectively avoid dissipating for cooling water cooling capacity
It loses, guarantees effective control of production technology water temperature, ground burying heat exchange tube road system 4 also uses high efficient heat exchanging polyethylene kind pipeline, can
To make full use of space, reduce the quantity that ground burying heat exchange tube road is laid with by improving heat exchange efficiency, reduce construction and material at
This.
Embodiment is not construed as the limitation to utility model, but any spiritual improvements introduced based on the utility model,
It should all be within the protection scope of the utility model.
Claims (10)
1. a kind of plastic products cooling water of extruding machine circulatory system, it is characterised in that: including plastic products extruder (1), return water
Pond (2), water cooling pond (3), ground burying heat exchange tube road system (4)；
The plastic products extruder (1) is arranged on the water return pipeline (5) by water return pipeline (5) connection back pool (2)
There are filter assemblies (6)；
The back pool (2) is connected to buried heat exchanging pipe system (4) by the first pipeline (7), and sets on first pipeline (7)
It is equipped with the first water pump (8)；
Ground burying heat exchange tube road system (4) is connected to water cooling pond (3)；
The water cooling pond (3) is arranged on the inlet pipeline (9) by inlet pipeline (9) connection plastic products extruder (1)
There are the second water pump (10)；
Seal cover board is set at the top of the back pool (2) and water cooling pond (3) or is located at subsurface in house, is in closed state.
2. the plastic products cooling water of extruding machine circulatory system according to claim 1, it is characterised in that: the filter assemblies
It (6) include the first filter (61) being serially connected and the second filter (62), the first filter (61) is using automatic anti-
Flush filter, second filter (62) use accurate filter.
3. the plastic products cooling water of extruding machine circulatory system according to claim 2, it is characterised in that: first filtering
The first bypass line (64) controlled by the first valve (63) is additionally provided at device (61), second filter (62) is provided with
The second bypass line (66) controlled by the second valve (65).
4. the plastic products cooling water of extruding machine circulatory system according to claim 1, it is characterised in that: first water pump
(8) automatic inlet-outlet valve (12) are provided at the highest point of the first pipeline (7) between ground burying heat exchange tube road system (4).
5. the plastic products cooling water of extruding machine circulatory system according to claim 1, it is characterised in that: the back pool
It (2) is in integral structure with water cooling pond (3), centre is separated by partition, and partition is equipped with connection back pool (2) and water cooling pond (3)
Overflow port (11)；
The back pool (2) is connected with the first water supply pipe (13), and the first running water pipe of control is equipped in the back pool (2)
The first ball-cock assembly (14) of road (13) opening and closing, and first ball-cock assembly (14) and overflow port (11) are in same level height；
The water cooling pond (3) is connected with the second water supply pipe (15), and the second water supply pipe of control is equipped in water cooling pond (3)
(15) the second ball-cock assembly (16) opened and closed, second ball-cock assembly (16) are lower than the level height of overflow port (11).
6. the plastic products cooling water of extruding machine circulatory system according to claim 5, it is characterised in that: first pipeline
(7) and the communication port of the communication port of back pool (2) and inlet pipeline (9) and water cooling pond (3) is in the same horizontal position.
7. the plastic products cooling water of extruding machine circulatory system according to claim 5, it is characterised in that: the water return pipeline
(5) it is higher than overflow port (11) with the level height of back pool (2) communication port, is also connected with heat exhausting pipe at the top of the back pool (2)
Road (17) is connected with exhaust fan (18) on the heat removal pipeline (17).
8. the plastic products cooling water of extruding machine circulatory system according to claim 1, it is characterised in that: first pipeline
(7) import is located at the near exit of water return pipeline (5)；The import of the inlet pipeline (9) is located at ground burying heat exchange tube road system
(4) near exit.
9. the plastic products cooling water of extruding machine circulatory system according to claim 1, it is characterised in that: the water return pipeline
(5), inlet pipeline (9) buried use, and it is located at frost zone or less.
10. the plastic products cooling water of extruding machine circulatory system according to claim 9, it is characterised in that: the return pipe
Road (5), ground burying heat exchange tube road system (4) are all made of high efficient heat exchanging polyethylene kind pipeline, and the inlet pipeline (9) uses thermal insulation separation
Heat pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820672657.6U CN208343409U (en) | 2018-05-08 | 2018-05-08 | A kind of plastic products cooling water of extruding machine circulatory system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820672657.6U CN208343409U (en) | 2018-05-08 | 2018-05-08 | A kind of plastic products cooling water of extruding machine circulatory system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208343409U true CN208343409U (en) | 2019-01-08 |
Family
ID=64888554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820672657.6U Expired - Fee Related CN208343409U (en) | 2018-05-08 | 2018-05-08 | A kind of plastic products cooling water of extruding machine circulatory system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208343409U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110340618A (en) * | 2019-07-15 | 2019-10-18 | 广东毅马集团有限公司 | A kind of prestressing force PC rod iron assemble production line |
| CN112459854A (en) * | 2020-11-16 | 2021-03-09 | 湖南华润电力鲤鱼江有限公司 | Circulating cooling water system and cooling method for steam turbine set |
-
2018
- 2018-05-08 CN CN201820672657.6U patent/CN208343409U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110340618A (en) * | 2019-07-15 | 2019-10-18 | 广东毅马集团有限公司 | A kind of prestressing force PC rod iron assemble production line |
| CN110340618B (en) * | 2019-07-15 | 2021-07-27 | 广东毅马集团有限公司 | Prestressing force PC rod iron assembly production line |
| CN112459854A (en) * | 2020-11-16 | 2021-03-09 | 湖南华润电力鲤鱼江有限公司 | Circulating cooling water system and cooling method for steam turbine set |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |