CN203845850U - Alum dispensing system - Google Patents
Alum dispensing system Download PDFInfo
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- CN203845850U CN203845850U CN201420168928.6U CN201420168928U CN203845850U CN 203845850 U CN203845850 U CN 203845850U CN 201420168928 U CN201420168928 U CN 201420168928U CN 203845850 U CN203845850 U CN 203845850U
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- alum
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- 229940037003 alum Drugs 0.000 title claims abstract description 297
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 67
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000005304 joining Methods 0.000 claims description 23
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 description 19
- 239000000243 solution Substances 0.000 description 12
- 239000008399 tap water Substances 0.000 description 9
- 235000020679 tap water Nutrition 0.000 description 9
- 230000001105 regulatory effect Effects 0.000 description 7
- 230000001276 controlling effect Effects 0.000 description 6
- 230000015271 coagulation Effects 0.000 description 5
- 238000005345 coagulation Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 239000003814 drug Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000013528 artificial neural network Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000000701 coagulant Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- -1 add Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
Landscapes
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The utility model discloses an alum dispensing system. The alum dispensing system comprises a cabinet, a PLC controller, an original alum tank, a high-grade alum tank, an original alum pump, a stirrer, an original alum pipe, a water inlet pipe with a water-adding solenoid valve and a level gauge, wherein the original alum tank is connected with the high-grade alum tank by virtue of the original alum pipe, the original alum pump is mounted in the middle of the original alum pipe, the water inlet pipe is connected with the high-grade alum tank; level gauges are mounted in the original alum tank and high-grade alum tank. The PLC controller, water-adding solenoid valve and original alum pump are mounted on the cabinet in an integrated manner to constitute an integrated alum dispensing control cabinet. By virtue of the alum dispensing system disclosed by the utility model, the labor intensity of workers is reduced, since the alum dispensing system is equipped with the integrated alum dispensing control cabinet, the control cabinet integrates relevant parts on the same cabinet, and thus the movement is convenient and the installation is convenient and quick, the alum dispensing and feeding can be more easily controlled when alum is dispensed and fed, the time is significantly saved and the efficiency is increased. Due to the adoption of the alum dispensing system disclosed by the utility model, the centralized control of the alum dispensing and feeding process can be better achieved.
Description
Technical field
The utility model relates to tap water production technical field, particularly a kind of alum system of joining.
Background technology
Conventional modern water purification plant adds alum technique and mainly comprises: the configuration of flocculation agent, add, mix, reaction, flocculation etc.System mainly partly forms by automatically joining alum system, dosing system etc.
Coagulation is most important treatment process in water cleaning systems, also be the chief component of water producing cost, whether the dosage of coagulating agent accurately directly has influence on the whole process of water treatment, in addition, the consumption costs of medicament is also the chief component of water producing cost, and the effect of dosing and precipitation operation directly affects final effluent water quality and processing cost.
Current domestic water factory joins alum mode and is mostly and manually joins alum, by former alum pond, and high-order alum pond, manual modulation valve, water sprayer, electric crystal clock and dosing pipe form.Joining alum, to take little metering pool and electric crystal clock be metering, and former alum is added to high-order alum pond by pump and water sprayer, then is detected and determined alum liquid concentration by laboratory.
Add alum and conventionally adopt volume pump dispensing or the dispensing of gravity+manual modulation valve.
Manually join alum, this joins alum side's mode needs watchstander constantly to note with addition of liquid level, prevents the alum that overflows, and alum liquid concentration is difficult to control.
Volume pump dosing mode, usings the frequency of volume pump and stroke as the indirect control parameter of alum flow control, and part is carried out feedback control by electric current apparatus.Volume pump Dosing system as shown in Figure 1.Chemical feeding quantity can have more experience to be controlled automatically, but control accuracy is not high, and higher to the gentle work on the spot experience requirement of watchstander's observation water, and the required maintenance of equipment is relatively large.While is border use experience factually, and electric current apparatus value of feedback has much room for improvement aspect precision and stability, and failure rate and the maintenance service of equipment are higher; Between the frequency of volume pump and stroke and theoretical delivery, exist serious non-linearly, after the barrier film of volume pump is deteriorated, flow also will reduce greatly, jeopardize production safety.
Gravity+manual modulation valve mode, is equipped with corresponding spinner-type flowmeter crop dosage feedback conventionally, and chemical feeding quantity can accurately be controlled.But this mode needs dosing staff to estimate by rule of thumb throws alum amount, and manual operation at the scene, make to throw alum personnel workload very large, constantly pay close attention to source discharge, turbidity and change and carry out regulated valve, and easily produce human error.
Through retrieval, in prior art, patent of invention " automatic control algorithm for feeding vitriol in tap water by coagulation " (CN101556458) discloses and a kind ofly based on artificial neural network, has carried out feed forward control and the automatic control algorithm for feeding vitriol in tap water by coagulation based on fuzzy feedback-control, it comprises: by artificial neural network, to throwing the process parameter of alum control, learn, inherent corresponding relation in the middle of recognition system parameter, thereby the controlling valu to the detection resources water parameter of core is predicted, then the method for feeding back by fuzzy control is revised predictor, finally obtain a throwing alum manipulated variable suiting the requirements and go to control volume pump work, complete and throw the whole process that alum is controlled.Utility model " a kind of topworks of feeding vitriol in tap water by coagulation " (CN201942549U) discloses a kind of topworks of feeding vitriol in tap water by coagulation, belongs to automation field.Described topworks is arranged on into alum pipe and goes out between alum pipe, described topworks comprises impeller pump, polarity formula variable valve, flow director and under meter, the import of described impeller pump is entered alum pipe and is connected with described, described centrifugal pump outlet goes out alum pipe through described polarity formula variable valve and described under meter described in being connected to, and described polarity formula variable valve, described flow director and described under meter form flow control circuit.The utility model " gravity outflow alum feeding special-purpose electronic regulating valve " (CN201407362) discloses a kind of gravity outflow alum feeding special-purpose electronic regulating valve, it comprises valve body, in valve body, establish valve seat, valve rod is through valve body sealing with it, valve rod front end connects spool, Horizontal limiting and seal boss are established in spool upper end, and boss is divided into sealed plunger, and sealed plunger has a contraction angle that is not more than 2 ° downwards; 25 millimeters >=H >=16 millimeter of shift motion of sealed plunger; D≤10 millimeter, sealing gap aperture of valve seat upper surface." tap water is produced disconnected alum automatic emergency treatment unit " (CN201338959) the utility model discloses a kind of tap water and produces disconnected alum automatic emergency treatment unit, it comprises the main transfer pump of alum solution, alum solution additional feed pump, the alum solution supply pipe that is connected UNICOM with the main transfer pump of alum solution and/or alum solution additional feed pump, alum solution supply pipe is provided with alum solution under meter, and the signal output of alum solution under meter is connected to programable automation controller; The signal output part of programable automation controller is connected to the keying control end of alum solution additional feed pump; Programable automation controller is for the automatic control to the main transfer pump of alum solution and the action of alum solution additional feed pump." automatic pulsating vitriol adding device " (CN2551637) discloses a kind of automatic pulsating vitriol adding device that can carry out electrical signal.Pressure water magnetic valve is arranged on the inlet channel of water sprayer, in parallel with purge valve; Purge valve is connected with clear water magnetic valve; Manually vitriol-adjusting valve, under meter, vacuum breaker three are in parallel with clear water magnetic valve after sequentially connecting, and are connected afterwards with water sprayer again; Buffer level is arranged on the fluid pipeline of water sprayer.Above prior art, does not all overcome well tap water and joins alum and add alum level of automation in producing low, and workman's the large drawback of labour intensity, is necessary further to be improved.
Utility model content
Technical problem to be solved in the utility model is, a kind of alum system of joining is provided, and it can overcome tap water and join that each integral part of alum system comparatively disperses, workman's the large drawback of labour intensity in producing, and improves equipment installation rate and working efficiency.
The technical solution adopted in the utility model is: described in join alum system, comprise former alum pond, high-order alum pond, former alum pump, stirrer, former alum pipe; Described former alum pond is connected by former alum pipe with high-order alum pond, described former alum pump is arranged in the middle of former alum pipe, described stirrer is arranged on high-order alum pond, it is characterized in that, also comprise that liquidometer and band add the water inlet pipe of water solenoid valve, described liquidometer comprises former alum pit level meter and high-order alum pit level meter, and described water inlet pipe connects high-order alum pond; Described former alum pond is provided with former alum pit level meter, and described high-order alum pond is provided with high-order alum pit level meter.
The described alum system of joining also comprises PLC controller, described in add water solenoid valve, former alum pump, stirrer and liquidometer and be all electrically connected to PLC controller.
The described alum system of joining also comprises cabinet and electrical element; Described PLC controller, electrical element, add water solenoid valve and former alum pump integrated installation on cabinet, form integral type and join alum housing; Its top is that electric part, bottom are pipeline equipment part; Described electric part comprises PLC controller and electrical element, and described pipeline equipment partly comprises and adds water solenoid valve and former alum pump.
The described alum system of joining also comprises touch-screen, and described touch-screen is arranged on the surface on cabinet top, and described touch-screen is electrically connected to PLC controller.
Described integral type is joined alum throwing alum housing and is also comprised former alum tube stub, the admitting pipe joint that is arranged on bottom of cabinet bulk; Described former alum pump connects former alum tube stub by pipeline, described in add water solenoid valve and connect admitting pipe joint by water pipe; Valve is all installed on described former alum tube stub, admitting pipe joint or adopts Valve joint.
The described alum system of joining also comprises manual controlling box; Described former alum pump comprises the former alum pump of 1# and the former alum pump of 2#; Described former alum pond comprises 1# former alum pond and the former alum of 2# pond, and described high-order alum pond comprises the high-order alum pond of 1# and the high-order alum of 2# pond; The described number that adds water solenoid valve and former alum pump is two.
The described alum system of joining also comprises the motorized valve being arranged in former alum pipe, manual service valve and vacuum breaker.
The beneficial effects of the utility model are: the labour intensity that has alleviated workman, be equipped with integrated integral type to join alum housing, this housing is integrated in associated components integral type on same cabinet, conveniently moving, quick and easy for installation, when joining alum, can control more easily, greatly save the time, improve efficiency.The utility model can be realized better and join the concentrated of alum technique and control.
Accompanying drawing explanation
Fig. 1 is volume pump Dosing system of the prior art;
Fig. 2 is that the utility model is joined each integral part connection diagram of alum system;
Fig. 3 is the structural representation that the integral type in the utility model is joined alum housing.
In figure: 1, former alum pond, 2, motorized valve, 3, manual service valve, 4, former alum pipe, 5, add water solenoid valve, 6, vacuum breaker, 7, former alum pump, 8, high-order alum pond, 9, PLC controller, 10, touch-screen, 11, cabinet, 12, former alum tube stub, 13, admitting pipe joint.
Embodiment
As shown in Figures 2 and 3, described in, join alum system and comprise that PLC controller 9, former alum pond 1, motorized valve 2, manual service valve 3, vacuum breaker 6, high-order alum pond 8, former alum pump 7, stirrer, former alum pipe 4, band add the water inlet pipe of water solenoid valve 5, former alum pit level meter, high-order alum pit level meter; Described former alum pond is connected by former alum pipe with high-order alum pond, and described former alum pump is arranged in the middle of former alum pipe, and described stirrer is arranged on high-order alum pond; Described water inlet pipe connects high-order alum pond, and described former alum pond is provided with former alum pit level meter, and described high-order alum pond is provided with high-order alum pit level meter.The described water solenoid valve, former alum pump, stirrer, liquidometer of adding is all electrically connected to PLC controller.Described motorized valve, manual service valve and vacuum breaker are arranged in former alum pipe.
By above-mentioned PLC controller, add water solenoid valve, former alum pump integral type integrated installation on same cabinet, form integral type and join alum housing; This integral type is joined alum housing and is comprised cabinet 11, is positioned at the electric part on cabinet top and is positioned at the pipeline equipment part of cabinet bottom, described electric part comprises touch-screen 10, PLC controller, other electrical elements and manual controlling box, and described touch-screen is arranged on cabinet surface.Described pipeline equipment partly comprises and adds water solenoid valve and former alum pump.Bottom of cabinet bulk is provided with former alum tube stub 12, admitting pipe joint 13; The described water solenoid valve that adds connects admitting pipe joint by water pipe, and described former alum pump connects former alum tube stub by pipeline.During use, integral type is joined to alum housing partly to be connected with other relevant components of joining alum Dosing system: the former alum pipe that is connected former alum pond, high-order alum pond is installed on the former alum tube stub on cabinet, water inlet pipe is installed on admitting pipe joint, and connects power source.
Described former alum pump comprises the former alum pump of 1# and the former alum pump of 2#; Described former alum pond comprises 1# former alum pond and the former alum of 2# pond, and described high-order alum pond comprises the high-order alum pond of 1# and the high-order alum of 2# pond.
Utilize the above-mentioned alum system of joining to join alum while throwing alum in conjunction with the Dosing system that adapts, above-mentioned, utilize on the basis that electric circuit controls, can also be further improved PLC controller, in PLC controller, configure following intelligent object: alum dosage calculation and control module, alum liquid concentration computing module, alum pit level control module, fault processing module etc., so just can realize and join the automatization that alum is thrown alum technique, reach following beneficial effect: by dispensing control algolithm, realize the automatization of medicine system, alleviated workman's labour intensity, improved the configuration of coagulating agent and thrown alum precision, thereby be conducive to improve water supply quality, by being based upon the throwing alum amount database under various conditions environmentals variations, make dosage more accurate, to save, Actual Control Effect of Strong is more intelligent, by setting up data, the industrial computer of equipment running status or touch-screen are reported to the police and video monitoring system, the reliability and the security that greatly improve Dosing system, guaranteed that waterworks realizes energy-saving and cost-reducing, synergy and production safety, its economic and social benefit is all very remarkable.
Dosing system mainly by PLC controller, high-order alum pond, high-order alum pit level meter, automatic regulating valve, magnetic flow meter, go out alum pipe, source Water Flowmeters, raw water turbidity instrument and manually controlling box form.Wherein, PLC controller, high-order alum pond, high-order alum pit level meter etc. can with join that alum system shares.
By touch-screen, PLC controller and other electrical elements, automatic regulating valve, magnetic flow meter and add the integral type integrated installations such as water solenoid valve, former alum pump to same cabinet, can form integral type and join alum and throw alum housing.
Below each integral part is described further.
Former alum pump: mix to dilute with water and make up a prescription for former alum is delivered to high-order alum pond from former alum pond.This equipment arranges two (the using and the reserved)
Former alum pit level meter: the former alum amount that record consumes, data participate in joining alum formula and calculate, and by Controlling System prompting watchstander.
Add water solenoid valve: control and add water, former alum is diluted.
High-order alum pit level meter: measure high-order alum pit level, calculate by joining alum algorithm that to add the liquid level liquid level high and water distribution of former alum high, control former alum pump and add the action of water solenoid valve by liquid level signal.
High-order alum pond: dilute alum pond, store dilution alum liquid, alum liquid rises to the dilution of high-order alum pond from former alum pond with lift pump, and stirrer stirs, and stirrer can long-range or field control.
Automatic regulating valve: control the dosage of alum liquid, control mode is for to regulate the detection of medicament flow and flow reverse feedback.Can long-rangely control with on-site manual.
Magnetic flow meter: read and add alum flow quantity, give variable valve feedback signal simultaneously.
Source Water Flowmeters and source water turbidity instrument: be loaded on the water sampling tube of source.
On-site manual controlling box: can control former alum pump, iron pump and stirrer etc. by on-site manual under local condition.
Below to comprising that the alum system of joining of the PLC controller that is equipped with intelligent object is example, to using, comprise that this alum Dosing system of joining of joining alum system joins alum and throw the processing method of alum and be briefly described.The method be take intelligence and is joined alum Dosing system experience database, intelligent algorithm as basis, take PLC controller as control core parts, adopts industrial computer as human interface device, automatically calculates and control liquid level, concentration, the alum dosage of alum liquid; Comprise the steps:
Step 1: automatically join alum under PLC controller is controlled, main technique is as follows:
(1) connect integral type and join the power supply that alum is thrown alum housing, open PLC controller, select to join alum pattern; Be identified for joining the former alum pond of alum;
(2) record alum liquid concentration, the liquid level in current high-order alum pond; Read and join alum setting concentration, setting liquid level;
(3) calculating is joined alum concentration, is joined alum liquid level: by PLC controller, the intelligence of take is joined alum Dosing system experience database, intelligent algorithm is basis, according to the relevant parameters of former alum and water, determine the proportionlity of former alum and water, calculate in high-order alum pond and join alum liquid level, join alum concentration;
(4) start former alum pump, former alum is risen to high-order alum pond from former alum pond;
(5) read the numerical value of high-order alum pit level meter, the former alum liquid level in high-order alum pond reaches after set(ting)value, stops former alum pump;
(6) water solenoid valve that adds of opening the water inlet pipe on high-order alum pond discharges water, and reads the numerical value of high-order alum pit level meter, and the liquid level discharging water to high-order alum pond reaches set(ting)value, closes and adds water solenoid valve;
(7) start stirrer work, stir, reach after the scheduled time, stop stirring;
(8) complete and join alum work;
Step 2: automatically throw alum under PLC controller is controlled, main technique is as follows:
(1), according to the relevant parameters of source water, by PLC controller, the intelligence of take is joined alum Dosing system experience database, intelligent algorithm is basis, calculates alum consumption and theory and adds alum flow;
(2) select master mode, determine required alum dosage;
(3) start to throw alum, by PID sequence of control, according to current alum dosage and feedback signal control automatic regulating valve aperture, thereby control alum dosage;
(4) complete the alum work of throwing.
While not being equipped with intelligent object in the PLC controller using, the relevant Intelligent Calculation in above-mentioned steps and control can replace by manual operation and common electric circuit control mode, and other steps are identical.
Described integral type is joined the size of alum housing and concrete installation site etc. and can be determined in conjunction with actual needs; Former alum pipe, the concrete layout that goes out the various pipelines such as alum pipe, water inlet pipe and source water sampling tube can be determined in conjunction with actual needs.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within being all included in protection domain of the present utility model.
Claims (4)
1. join an alum system, comprise former alum pond, high-order alum pond, former alum pump, stirrer, former alum pipe and valve; Described former alum pond is connected by former alum pipe with high-order alum pond, described former alum pump and valve installation are in the middle of former alum pipe, described stirrer is arranged on high-order alum pond, it is characterized in that, also comprise that liquidometer and band add the water inlet pipe of water solenoid valve, described liquidometer comprises former alum pit level meter and high-order alum pit level meter, and described water inlet pipe connects high-order alum pond; Described former alum pond is provided with former alum pit level meter, and described high-order alum pond is provided with high-order alum pit level meter; The described alum system of joining also comprises that integral type joins alum housing, and described integral type is joined alum housing and comprised cabinet, is positioned at the electric part on cabinet top and is positioned at the pipeline equipment part of cabinet bottom, and described pipeline equipment partly comprises and adds water solenoid valve and former alum pump.
2. the alum system of joining according to claim 1, is characterized in that, described electric part comprises electrical element; Described integral type is joined alum housing and is also comprised former alum tube stub, the admitting pipe joint that is arranged on bottom of cabinet bulk; Described former alum pump connects former alum tube stub by pipeline, described in add water solenoid valve and connect admitting pipe joint by water pipe; Valve is all installed on described former alum tube stub, admitting pipe joint or adopts Valve joint.
3. the alum system of joining according to claim 1, is characterized in that, also comprises manual controlling box; Described former alum pump comprises the former alum pump of 1# and the former alum pump of 2#; Described former alum pond comprises 1# former alum pond and the former alum of 2# pond, and described high-order alum pond comprises the high-order alum pond of 1# and the high-order alum of 2# pond; The described number that adds water solenoid valve and former alum pump is two.
4. the alum system of joining according to claim 1, is characterized in that, also comprises the motorized valve being arranged in former alum pipe, manual service valve and vacuum breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420168928.6U CN203845850U (en) | 2014-04-09 | 2014-04-09 | Alum dispensing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420168928.6U CN203845850U (en) | 2014-04-09 | 2014-04-09 | Alum dispensing system |
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| Publication Number | Publication Date |
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| CN203845850U true CN203845850U (en) | 2014-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420168928.6U Expired - Lifetime CN203845850U (en) | 2014-04-09 | 2014-04-09 | Alum dispensing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106517457A (en) * | 2016-09-05 | 2017-03-22 | 武汉长江仪器自动化研究所有限公司 | Method and system for monitoring alum break failure of alum delivery pipeline of water plant |
-
2014
- 2014-04-09 CN CN201420168928.6U patent/CN203845850U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106517457A (en) * | 2016-09-05 | 2017-03-22 | 武汉长江仪器自动化研究所有限公司 | Method and system for monitoring alum break failure of alum delivery pipeline of water plant |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140924 |
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| CX01 | Expiry of patent term |