CN203936091U - The positive and negative cleaning device of a kind of bridge-type with filtering function - Google Patents
The positive and negative cleaning device of a kind of bridge-type with filtering function Download PDFInfo
- Publication number
- CN203936091U CN203936091U CN201420395840.8U CN201420395840U CN203936091U CN 203936091 U CN203936091 U CN 203936091U CN 201420395840 U CN201420395840 U CN 201420395840U CN 203936091 U CN203936091 U CN 203936091U
- Authority
- CN
- China
- Prior art keywords
- communicated
- tube connector
- magnetic valve
- bridge
- link
- 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
Abstract
The utility model discloses the positive and negative cleaning device of a kind of bridge-type with filtering function, comprise that soda liquor container, scavenging pump, filter, bridge-type two-way Flow Control pipeline, first rinse interface and second and rinse interface, described bridge-type two-way Flow Control pipeline rinses interface with scavenging pump, filter, first respectively, the second flushing interface is communicated with by tube connector, described soda liquor container is provided with drain pipe and liquid back pipe, described scavenging pump is communicated with by tube connector with drain pipe, and described filter is communicated with by tube connector with liquid back pipe.The utility model can be realized the positive and negative cleaning of the fan frequency converter that inside is comprised to multi-channel parallel pipeline, has advantages of that cleaning performance is good, cleaning speed is fast, long service life, continuous operation for a long time, simple in structure, easy to use.
Description
Technical field
The utility model relates to the cleaning equipment for pipeline that the water-cooling system of wind power generating set is used, and is specifically related to the positive and negative cleaning device of a kind of bridge-type with filtering function.
Background technology
In recent years, exceed the wind power plant of 2 years at some operation time limits, blower fan has occurred that water-cooling system is aging again and again, and internal pipeline corrosion is serious, and some fan frequency converter internal water cooling tube walls adhere to a large amount of iron rust, radiating effect is had a greatly reduced quality, cause frequency converter often to report excess temperature fault, because its internal duct is multi-channel parallel, even if a road blocks, total Inlet and outlet water flow may be still normal, uses conventional cleaning way to be also difficult in pipeline, to clean up completely.Changing frequency converter can tackle the problem at its root, but its cost is high, and the frequency converter of changing is also difficult to this problem maintenance process.Frequency converter internal water cooling pipeline is cut, extract rust deposite sample and analyze, its main component is iron oxide.Employing acid solution can dissolved oxygen iron powder.Consider that sulfuric acid has stronger injury to human body, acceptable salts acid solution carries out pipeline cleaning, but frequency converter internal pipeline is multi-channel parallel, has the stifled branch road of rust, and flow will diminish or be zero, cannot rinse stifled branch road.
Prior art is used artificial operating pumps unit and the frequent pipeline that switches, and will have following problems: 1) start and stop water pump back and forth, and the starting current of pump motor is 3 ~ 7 times while normally moving, frequent start-stop, the motor feels hot soon, and the life-span is short.2) need personnel to exchange frequently pipeline, complicated operation, and solution splashes on human body skin or eyes and will damage.3) if having rinsed the solution of outflow continues to use, the impurity developing is not filtered.The solution rinsing with crossing is directly drained, will standby a large amount of cleaning solution.4) operate man-machine fatiguability, it is lasting to be difficult to, and is difficult to reach the cleaning performance of expection.
Utility model content
The technical problems to be solved in the utility model is: for the above-mentioned technical problem of prior art, a kind of positive and negative cleaning that can realize the fan frequency converter that inside is comprised to multi-channel parallel pipeline is provided, and cleaning performance is good, cleaning speed is fast, long service life, continuous operation for a long time, the positive and negative cleaning device of the bridge-type with filtering function simple in structure, easy to use.
In order to solve the problems of the technologies described above, the technical scheme that the utility model provides is:
The positive and negative cleaning device of a kind of bridge-type with filtering function, comprise that soda liquor container, scavenging pump, filter, bridge-type two-way Flow Control pipeline, first rinse interface and second and rinse interface, described bridge-type two-way Flow Control pipeline rinses interface with scavenging pump, filter, first respectively, the second flushing interface is communicated with by tube connector, described soda liquor container is provided with drain pipe and liquid back pipe, described scavenging pump is communicated with by tube connector with drain pipe, and described filter is communicated with by tube connector with liquid back pipe.
Preferably, described bridge-type two-way Flow Control pipeline comprises the first magnetic valve, the second magnetic valve, the 3rd magnetic valve, the 4th magnetic valve, the first triple valve, the second triple valve, the 3rd triple valve and the 4th triple valve, be communicated with by tube connector between the first link of described the first triple valve and scavenging pump and drain pipe, the second link is communicated with by tube connector with one end of the first magnetic valve, the 3rd link is communicated with by tube connector with one end of the 3rd magnetic valve, between the first link of described the second triple valve and filter and liquid back pipe, is communicated with by tube connector, the second link is communicated with by tube connector with one end of the second magnetic valve, the 3rd link is communicated with by tube connector with one end of the 4th magnetic valve, and the first link of described the 3rd triple valve is communicated with by tube connector with the other end of the first magnetic valve, the second link is communicated with by tube connector with the other end of the second magnetic valve, the 3rd link and first rinses interface and is communicated with by tube connector, and the first link of described the 4th triple valve is communicated with by tube connector with the other end of the 3rd magnetic valve, the second link is communicated with by tube connector with the other end of the 4th magnetic valve, the 3rd link and second rinses interface and is communicated with by tube connector.
Preferably, in described soda liquor container, be provided with heater.
Preferably, described filter comprises shell, and the top of described shell is provided with entrance, bottom is provided with outlet, in the inner chamber of described shell, between entrance, outlet, is provided with filter.
Preferably, the upside of described filter is provided with at least one buffer board being in tilted layout, and one end of described buffer board is fixed on the inwall of shell.
Preferably, described tube connector is rubber tube or stainless steel tube.
The positive and negative cleaning device of bridge-type of the utility model band filtering function has following advantage:
1, the utility model comprises soda liquor container, scavenging pump, filter, bridge-type two-way Flow Control pipeline, first rinses interface, with the second flushing interface, bridge-type two-way Flow Control pipeline respectively with scavenging pump, filter, first rinses interface, second rinses interface is communicated with by tube connector, soda liquor container is provided with drain pipe and liquid back pipe, scavenging pump is communicated with by tube connector with drain pipe, filter is communicated with by tube connector with liquid back pipe, therefore can realize scavenging pump by bridge-type two-way Flow Control pipeline, filter, first rinses interface, second rinses the both forward and reverse directions gating between interface, thereby can realize the positive and negative of fan frequency converter that inside is comprised to multi-channel parallel pipeline rinses back and forth, by the solute effect of acidic cleaning solution, in addition the fluid scouring of cleaning fluid, can effectively clear up the stifled branch road of rust, there is cleaning performance good, cleaning speed is fast, simple in structure, advantage easy to use.
2, the utility model only uses a scavenging pump; what substitute prior art by the switching of bridge-type two-way Flow Control pipeline carrys out frequent start-stop scavenging pump; in whole cleaning process, scavenging pump does not need to shut down substantially; thereby can effectively overcome the frequent start-stop scavenging pump of prior art and cause that scavenging pump heating is fast, short problem of life-span, the service life that can effectively improve scavenging pump.
3, interface is rinsed with scavenging pump, filter, first respectively in the utility model bidirectional flow keyholed back plate road, the second flushing interface is communicated with by tube connector, the switching on bidirectional flow keyholed back plate road can be switched by outside control device, handoff procedure completes automatically, do not need manually to switch, simple to operate, and can prevent that acidic cleaning solution from splashing on human body skin or eyes and damage.
4, the utility model carries filter, can filter out the impurity cleaning out, thereby realizes the recycling of acidic cleaning solution, and can reduce the cost of cleaning.
5, interface is rinsed with scavenging pump, filter, first respectively in the utility model bidirectional flow keyholed back plate road, the second flushing interface is communicated with by tube connector, the switching on bidirectional flow keyholed back plate road is switched by outside control device, and whole handoff procedure completes automatically, labor intensity of operating staff is low, service ability is strong lastingly, thereby can promote the efficiency of cleaning, good reliability.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
Wash liquid stream when Fig. 2 is the flushing of the utility model embodiment forward is to schematic diagram.
Wash liquid stream when Fig. 3 is the utility model embodiment back flush is to schematic diagram.
Fig. 4 is the structural representation of the utility model embodiment middle filtrator.
Fig. 5 is the structural representation of the control device for controlling the utility model embodiment.
Marginal data: 1, soda liquor container; 11, drain pipe; 12, liquid back pipe; 13, heater; 2, scavenging pump; 3, filter; 31, shell; 32, entrance; 33, outlet; 34, filter; 35, buffer board; 4, bridge-type two-way Flow Control pipeline; 41, the first magnetic valve; 42, the second magnetic valve; 43, the 3rd magnetic valve; 44, the 4th magnetic valve; 45, the first triple valve; 46, the second triple valve; 47, the 3rd triple valve; 48, the 4th triple valve; 5, first rinse interface; 6, second rinse interface; 7, tube connector.
Detailed description of the invention
As shown in Figure 1, the positive and negative cleaning device of bridge-type of the present embodiment band filtering function comprises that soda liquor container 1, scavenging pump 2, filter 3, bridge-type two-way Flow Control pipeline 4, the first flushing interface 5 and second rinse interface 6, bridge-type two-way Flow Control pipeline 4 is communicated with by tube connector 7 with scavenging pump 2, filter 3, the first flushing interface 5, the second flushing interface 6 respectively, soda liquor container 1 is provided with drain pipe 11 and liquid back pipe 12, scavenging pump 2 is communicated with by tube connector 7 with drain pipe 11, and filter 3 is communicated with by tube connector 7 with liquid back pipe 12.The present embodiment can be realized scavenging pump 2, filter 3, the first flushing interface 5, the second flushing interface 6 by the both forward and reverse directions gating between tube connector 7 four by bridge-type two-way Flow Control pipeline 4, thereby can realize the positive and negative of fan frequency converter that inside is comprised to multi-channel parallel pipeline rinses back and forth, by the solute effect of acidic cleaning solution, in addition the fluid scouring of cleaning fluid, can effectively clear up the stifled branch road of rust, have advantages of that cleaning performance is good, simple in structure, easy to use.
As shown in Figure 1, consider the chemical solution feature of the better effects if of its molten rust at a certain temperature, in the present embodiment, in soda liquor container 1, be provided with heater 13, can heat the acidic cleaning solution of the interior cleaning use of soda liquor container 1 by heater 13, thereby can effectively improve the cleaning performance of acidic cleaning solution, though be used in also can allow cold winter molten rust cleaning process the best, carry out faster.
Acidic cleaning solution in the present embodiment is hydrochloric acid composition, and tube connector 7 is rubber tube (also can adopt in addition stainless steel tube), thereby can promote the resistance to corrosion of tube connector 7.In addition, in the present embodiment, soda liquor container 1, scavenging pump 2, filter 3, bridge-type two-way Flow Control pipeline 4, the first flushing interface 5, the second flushing interface 6 etc. all adopt corrosion resistant industrial plastic, rubber or stainless steel material to make.
As shown in Figure 1, bridge-type two-way Flow Control pipeline 4 comprises the first magnetic valve 41, the second magnetic valve 42, the 3rd magnetic valve 43, the 4th magnetic valve 44, the first triple valve 45, the second triple valve 46, between the first link A of the 3rd triple valve 47 and the 4th triple valve 48, the first triple valves 45 and scavenging pump 2 and drain pipe 11, be communicated with by tube connector 7, the second link B is communicated with by tube connector 7 with one end of the first magnetic valve 41, the 3rd link C is communicated with by tube connector 7 with one end of the 3rd magnetic valve 43, between the first link A of the second triple valve 46 and filter 3 and liquid back pipe 12, is communicated with by tube connector 7, the second link B is communicated with by tube connector 7 with one end of the second magnetic valve 42, the 3rd link C is communicated with by tube connector 7 with one end of the 4th magnetic valve 44, and the first link A of the 3rd triple valve 47 is communicated with by tube connector 7 with the other end of the first magnetic valve 41, the second link B is communicated with by tube connector 7 with the other end of the second magnetic valve 42, the 3rd link C and first rinses interface 5 and is communicated with by tube connector 7, and the first link A of the 4th triple valve 48 is communicated with by tube connector 7 with the other end of the 3rd magnetic valve 43, the second link B is communicated with by tube connector 7 with the other end of the 4th magnetic valve 44, the 3rd link C and second rinses interface 6 and is communicated with by tube connector 7.The present embodiment can be realized scavenging pump 2, filter 3, the first connection between two of rinsing between interface 5, the second flushing interface 6 by the duty of outside control device control the first magnetic valve 41, the second magnetic valve 42, the 3rd magnetic valve 43, the 4th magnetic valve 44, thereby realizing the positive and negative of fan frequency converter that inside is comprised to multi-channel parallel pipeline rinses back and forth, owing to substituting the frequent start-stop scavenging pump 2 of prior art by frequent switching pipeline, lifetime of system and reliability are all improved greatly.In the present embodiment, the course of work on bridge-type bidirectional flow keyholed back plate road 4 is as follows: as shown in Figure 2, under forward flushing state, the first magnetic valve 41, the 4th magnetic valve 44 are opened, and the second magnetic valve 42, the 3rd magnetic valve 43 are closed; Now, the frequency converter cooled plate that acidic cleaning solution of drain pipe 11 is rinsed interface 5 and inputed to wind-powered electricity generation unit successively by scavenging pump 2, the first triple valve 45, the first magnetic valve 41, the 3rd triple valve 47, first; Meanwhile, the cleaning of frequency converter cooled plate refluxes and is back to soda liquor container 1 by the second flushing interface 6, the 4th triple valve 48, the 4th magnetic valve 44, the second triple valve 46, filter 3, liquid back pipe 12 successively; As shown in Figure 3, under back flush state, the second magnetic valve 42, the 3rd magnetic valve 43 are opened, and the first magnetic valve 41, the 4th magnetic valve 44 are closed; Now, the acidic cleaning solution of drain pipe 11 inputs to the frequency converter cooled plate of wind-powered electricity generation unit successively by scavenging pump 2, the first triple valve 45, the 3rd magnetic valve 43, the 4th triple valve 48, the second flushing interface 6; Meanwhile, the cleaning of frequency converter cooled plate refluxes and is back to soda liquor container 1 by the first flushing interface 5, the 3rd triple valve 47, the second magnetic valve 42, the second triple valve 46, filter 3, liquid back pipe 12 successively.
As shown in Figure 4, filter 3 comprises shell 31, and the top of shell 31 is provided with entrance 32, bottom is provided with outlet 33, in the inner chamber of shell 31, between entrance 32, outlet 33, is provided with filter 34.In the present embodiment, the upside of filter 34 is provided with at least one buffer board being in tilted layout 35, one end of buffer board 35 is fixed on the inwall of shell 31, the cleaning fluid that can enter entrance 32 by buffer board 35 plays the effect of buffering, cleaning fluid is fallen more mild and stable, thereby can promote the filter effect of filter 34.
As shown in Figure 5, comprise STC90C54AD single-chip microcomputer for controlling the control device of the present embodiment, drive chip U2～U5 and peripheral circuit thereof, P1.4～P1.7 pin of STC90C54AD single-chip microcomputer is connected with respectively and drives chip U2～U5, drives chip U2～U5 to be connected with the first magnetic valve 41, the second magnetic valve 42, the 3rd magnetic valve 43, the 4th magnetic valve 44 respectively by P1～P4 interface.Peripheral circuit comprises key circuit KEY1～KEY16, digital display circuit based on 5461BH chip etc., wherein key circuit KEY1～KEY16 is connected with P2.0～P2.7 pin of STC90C54AD single-chip microcomputer respectively, and the digital display circuit based on 5461BH chip is connected with P0.0～P0.7 pin, P3.4～P3.7 pin of STC90C54AD single-chip microcomputer respectively.In addition, the P3.3 pin of STC90C54AD single-chip microcomputer is also further connected with temperature sensor DS18B20, temperature sensor DS18B20 is placed in soda liquor container 1, thereby utilize temperature sensor DS18B20 to carry out the closed-loop control to heater 13, thereby realize the accurate temperature control to heater 13.It should be noted that, in addition also can adopt as required the control device of other structure to realize the break-make control to the first magnetic valve 41, the second magnetic valve 42, the 3rd magnetic valve 43, the 4th magnetic valve 44, for example adopt PLC(programmable logic controller (PLC)) etc., do not repeat them here therefore its principle is identical with the present embodiment.
The above is only preferred embodiment of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. the positive and negative cleaning device of the bridge-type with filtering function, it is characterized in that: comprise soda liquor container (1), scavenging pump (2), filter (3), bridge-type two-way Flow Control pipeline (4), first rinses interface (5) and second rinses interface (6), described bridge-type two-way Flow Control pipeline (4) respectively with scavenging pump (2), filter (3), first rinses interface (5), second rinses interface (6) is communicated with by tube connector (7), described soda liquor container (1) is provided with drain pipe (11) and liquid back pipe (12), described scavenging pump (2) is communicated with by tube connector (7) with drain pipe (11), described filter (3) is communicated with by tube connector (7) with liquid back pipe (12).
2. the positive and negative cleaning device of the bridge-type with filtering function according to claim 1, it is characterized in that: described bridge-type two-way Flow Control pipeline (4) comprises the first magnetic valve (41), the second magnetic valve (42), the 3rd magnetic valve (43), the 4th magnetic valve (44), the first triple valve (45), the second triple valve (46), the 3rd triple valve (47) and the 4th triple valve (48), between the first link of described the first triple valve (45) and scavenging pump (2) and drain pipe (11), be communicated with by tube connector (7), the second link is communicated with by tube connector (7) with one end of the first magnetic valve (41), the 3rd link is communicated with by tube connector (7) with one end of the 3rd magnetic valve (43), between the first link of described the second triple valve (46) and filter (3) and liquid back pipe (12), be communicated with by tube connector (7), the second link is communicated with by tube connector (7) with one end of the second magnetic valve (42), the 3rd link is communicated with by tube connector (7) with one end of the 4th magnetic valve (44), the first link of described the 3rd triple valve (47) is communicated with by tube connector (7) with the other end of the first magnetic valve (41), the second link is communicated with by tube connector (7) with the other end of the second magnetic valve (42), the 3rd link and first rinses interface (5) and is communicated with by tube connector (7), the first link of described the 4th triple valve (48) is communicated with by tube connector (7) with the other end of the 3rd magnetic valve (43), the second link is communicated with by tube connector (7) with the other end of the 4th magnetic valve (44), the 3rd link and second rinses interface (6) and is communicated with by tube connector (7).
3. the positive and negative cleaning device of the bridge-type with filtering function according to claim 2, is characterized in that: in described soda liquor container (1), be provided with heater (13).
4. the positive and negative cleaning device of the bridge-type with filtering function according to claim 3, it is characterized in that: described filter (3) comprises shell (31), the top of described shell (31) is provided with entrance (32), bottom is provided with outlet (33), is positioned between entrance (32), outlet (33) and is provided with filter (34) in the inner chamber of described shell (31).
5. the positive and negative cleaning device of the bridge-type with filtering function according to claim 4, it is characterized in that: the upside of described filter (34) is provided with at least one buffer board being in tilted layout (35), one end of described buffer board (35) is fixed on the inwall of shell (31).
6. according to the positive and negative cleaning device of the bridge-type with filtering function described in any one in claim 1～5, it is characterized in that: described tube connector (7) is rubber tube or stainless steel tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420395840.8U CN203936091U (en) | 2014-07-17 | 2014-07-17 | The positive and negative cleaning device of a kind of bridge-type with filtering function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420395840.8U CN203936091U (en) | 2014-07-17 | 2014-07-17 | The positive and negative cleaning device of a kind of bridge-type with filtering function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203936091U true CN203936091U (en) | 2014-11-12 |
Family
ID=51855440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420395840.8U Expired - Fee Related CN203936091U (en) | 2014-07-17 | 2014-07-17 | The positive and negative cleaning device of a kind of bridge-type with filtering function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203936091U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107282535A (en) * | 2017-07-26 | 2017-10-24 | 盈信共创能源科技（青岛）有限公司 | Wind-driven generator wheel-box cleaning device for radiating fin and cleaning method |
| CN109127554A (en) * | 2017-06-16 | 2019-01-04 | 中国人民解放军第五七九工厂 | Oil liquid laser particle counter sensor passage cleaning device and its cleaning method |
-
2014
- 2014-07-17 CN CN201420395840.8U patent/CN203936091U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109127554A (en) * | 2017-06-16 | 2019-01-04 | 中国人民解放军第五七九工厂 | Oil liquid laser particle counter sensor passage cleaning device and its cleaning method |
| CN109127554B (en) * | 2017-06-16 | 2023-09-22 | 中国人民解放军第五七一九工厂 | Cleaning device and cleaning method for oil laser particle counter sensor channel |
| CN107282535A (en) * | 2017-07-26 | 2017-10-24 | 盈信共创能源科技（青岛）有限公司 | Wind-driven generator wheel-box cleaning device for radiating fin and cleaning method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201351998Y (en) | Swimming pool constant temperature system of air-source heat pump water heater | |
| CN202427360U (en) | Reverse-osmosis clean water dispenser | |
| CN103615839B (en) | Self-cleaning heat transfer enhanced solar sewage source heat pump system | |
| JP2014105897A (en) | Washing apparatus for plate type heat exchanger of air conditioner | |
| CN203936091U (en) | The positive and negative cleaning device of a kind of bridge-type with filtering function | |
| CN2241320Y (en) | Automatic in-line scale cleaning device for cooler | |
| CN202938691U (en) | Condenser ball type automatic cleaning system | |
| CN207026033U (en) | Flusher | |
| CN202359640U (en) | Blow-down device for industrial circulation cooling water | |
| CN201359320Y (en) | Heating apparatus | |
| CN203615821U (en) | On-line cleaning device for condenser rubber ball | |
| CN108626894A (en) | A kind of descaling device for water tank for solar water heater | |
| CN206001055U (en) | A kind of pair of change over adapter and water purifier | |
| CN201878487U (en) | Closed circulating water cooling system applied to medium-voltage frequency conversion device | |
| CN202802229U (en) | Automatic heat sterilization system | |
| CN203850094U (en) | Main transformer oil flow guide micro circulation device with photovoltaic frequency conversion function | |
| CN206225838U (en) | A kind of High-low voltage switch cabinet for recycling condensing agent | |
| CN208181021U (en) | A kind of automobile cooling system cleaning and cooling fluid exchange integrated car curing means | |
| CN209856298U (en) | Closed-loop oil circuit automatic cooling system for buffer cylinder | |
| CN209181251U (en) | A kind of electric calorifie installation of heating and bathing integrated | |
| CN203113489U (en) | Electroless constant-temperature washing cover board with temperature control function | |
| CN206204624U (en) | Drainage arrangement and washing machine | |
| CN202590446U (en) | Circulating water sand filtering device of converter valve cooling system | |
| CN203900019U (en) | Brand-new rigid endoscope cleaning system | |
| CN220609854U (en) | Intelligent program control-based cold reverse osmosis membrane cleaning device for converter station valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20141112 Termination date: 20200717 |