CN102696451A - Pneumatic control flow drip irrigation tank for agricultural irrigation - Google Patents
Pneumatic control flow drip irrigation tank for agricultural irrigation Download PDFInfo
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- CN102696451A CN102696451A CN201210207554XA CN201210207554A CN102696451A CN 102696451 A CN102696451 A CN 102696451A CN 201210207554X A CN201210207554X A CN 201210207554XA CN 201210207554 A CN201210207554 A CN 201210207554A CN 102696451 A CN102696451 A CN 102696451A
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- drip irrigation
- water
- tank body
- water inlet
- inlet pipe
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
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Abstract
The invention relates to agricultural irrigation equipment, in particular to a pneumatic control flow drip irrigation tank for agricultural irrigation. The drip irrigation tank is provided with a closed tank body, and is particularly characterized in that a one-way exhaust safety valve and a pneumatic control regulating valve are mounted at the top of the tank body; a water inlet pipe and a water outlet pipe are mounted at the bottom of the tank body; a linked switch is mounted between the water inlet pipe and the water outlet pipe, and consists of a bracket equipped with a lever-type valve rod; the two ends of the valve rod are provided with closed structures, wherein one of the closed structures just faces the water inlet pipe, and the other closed structure just faces the water outlet pipe; a tension spring is mounted on one side of the valve rod, which is close to the water inlet pipe; a distributor is mounted at the external end of the water outlet pipe; and each tap joint of the distributor is connected with a transmission flexible pipe. The drip irrigation tank provided by the invention overcomes the defects that since an adopted special dripper for drip irrigation is easily blocked in the conventional agricultural drip irrigation system, the flow cannot be regulated, the dripper is complex in structure, the manufacturing cost is high, the service life is short and the electricity consumption of the system is large; and in addition, the drip irrigation tank can be widely applicable to cropper irrigation.
Description
The (1) technical field: the present invention relates to the agricultural irrigation device, especially a kind of agricultural irrigation is with gas control flow drip irrigation jar.
The (2) background technology: during modern agriculture is irrigated an important branch being arranged is exactly the drip irrigation technique system; This system includes a pump works and water main, distributive pipe and is contained in a plurality of special-purpose water dropper on the distributive pipe, and this emitter structure is very complicated, and it (mainly is that water dropper is contained in the high-pressure system that the accuracy of manufacture requires height; Realize the droplet pouring); The water dropper of present domestic employing mainly relies on import, and domestic have the minority Counterfeit Item, but technology does not pass a test.The problem that existing both at home and abroad special-purpose water dropper exists is:
⑴ water dropper easy blocking
Blockage problem is the subject matter that drip irrigation system exists.Generally speaking; Because the cross-section of river of the water flow passage in the water dropper is very little, diameter is about 0.5-1.2mm, is very easily stopped up by the various solid matter in the water; Therefore drip irrigation system requires extremely tight to quality; Generally must carry out chemical treatment and filtration, and will install filters at different levels additional, must make not contain silt, impurity, algae and chemical sediment in the water water.NORTHWEST CHINA area serious water shortage, silt content, the turbidity at general water source are very high, have limited its scope of application, service life for this reason widely and have improved use cost.
⑵ power consumption is big, and operating cost is high
Water dropper will use the water of pressure during drip irrigation, this just requires pump motor process pump water always.To water dropper pressurization water supply, is a very long process through pipeline during the drip irrigation, and pump motor moves always during this period, needs to use expensive electric energy, and power consumption has become the main operating cost of system.
⑶ water dropper irrigation quantity is inhomogeneous
Because emitter structure is complicated and receive the influence of the accuracy of manufacture, assembly precision; The influence of the head pressure difference that produces because of landform, landforms, physical features; And the different influence of pipe network each point head pressure; Make the circulation between the water dropper differ bigger, 20-30% error is arranged, in addition higher, and then influence irrigation effect.
⑷ short service life
After stopping irritating, water dropper is subject to the influence of silt, impurity, algae and chemical sediment, makes the water dropper easy blocking.Add difficult clean and maintenance and scrap that system is generally a crop irrigation cycle service life, and can not reuse.
⑸ system is slow in reacting to the adjustment of crop irrigation system
Because the flow of each water dropper all is a definite value, just can not do any adjustment once installing and using the back, if crops environment (like temperature, rainfall, fertilising, damage by disease and insect etc.) in process of growth changes.Increase the weight of like damage caused by a drought, require to strengthen irrigation quantity, but fix owing to water dropper circulation in the system and can not increase irrigation quantity this moment, thereby influence the growth of crops.
⑹ water dropper is made the precision height, and cost of manufacture is high, cost performance is low.
The (3) summary of the invention: the object of the invention will solve in the existing drip irrigation technique system exactly, must adopt special-purpose water dropper, and there is complex structure in this special-purpose water dropper; Manufacturing cost is high, and service life is short, stops up easily; The water yield is inhomogeneous, can not regulate, and influence the system power consumption increase; Problems such as operating cost height provide a kind of agricultural irrigation with gas control flow drip irrigation jar.
Concrete scheme of the present invention is: a kind of agricultural irrigation is with gas control flow drip irrigation jar, and it has airtight tank body, particularly: the gentle control regulation valve of unidirectional exhaust anti-overflow valve is installed at the top of tank body; In the bottom of tank body water inlet pipe, outlet pipe are installed, between water inlet pipe and outlet pipe, linked switch are installed, this linked switch includes a bearing; The lever valve rod is housed on the bearing; The two ends of valve rod are designed with enclosed construction, and wherein an end enclosed construction arranges that over against water inlet pipe the other end is arranged over against outlet pipe; And on valve rod, lean on water inlet pipe one side that extension spring is housed, and distributor is housed in the outlet pipe outer termination; Said distributor has distribution cavity, and distribution cavity is provided with some taps, and each tap is connected with a delivery hose.
For guaranteeing every jar drip irrigation time, the distribution cavity of distributor described in the present invention is provided with 1-6 root arm, and it also is feasible designing more arm certainly.
For the terminal water dropping openings that guarantees delivery hose accurately drips, prevent to stop up, the end at delivery hose among the present invention is equipped with the water dropper cover, and this water dropper cover has the bowl-type case, has some air-vents on the case.
Lifting of the present invention is for ease used, and the present invention is provided with suspension ring at the tank body top.
Clean tank body for ease, the present invention is equipped with blow-off pipe in the bottom of tank body, is fitted with blowoff valve.
The enclosed construction at the two ends of valve rod described in the present invention includes two respectively more than or equal to the pressing plate of water inlet pipe and outlet pipe external diameter, and rubber seal is equipped with in the pressing plate bottom surface.
The present invention has following characteristics:
1, timeliness:
According to the irrigation program of crops, the drip irrigation cycle (after establishing 3～5 hours) is set, this moment, jar interior whole drip irrigations of water were intact.
Drip irrigation working time one-period
=tank body is full of water time+drip irrigation work deadline+nargin time
=5～7 minutes+3～5 hours+1 hour
All devices are accomplished initialization in jar, prepare to meet following one-period to begin.
Whole irrigation process can be designed to n cycle according to the drip irrigation water consumption intensity Q of crops.
Q=
In the formula: Q: total irrigation quantity L q: tank body water carrying capacity L n: periodicity
Whole drip irrigation process can be accomplished through the water pump system of PLC control automatically, and can revise former setting at any time according to actual conditions, the irrigation effect that comes to perfection.
Because in the cycle, introduced the notion (and this time margin can be regulated and control through the pump motor control PLC of system very easily) of time margin in drip irrigation, therefore the time of irritating the phase being controlled has had good adjustment space.It can be set forth with following formula:
H=
In the formula: H: total time requirement (hour)
H: the drip irrigation cycle (hour)
N: periodicity
This shows, can in the time interval of setting, fully hit the target.
2, an amount of property:
Because the drip irrigation jar is to measure with the tank body maximum amount of water of can packing at the irrigation quantity of drip irrigation in the cycle.Therefore can well, very easily total irrigation quantity of filling phase accurately be controlled, only require that system-wide tank body capacity size is all consistent.It can be set forth with following formula:
Q=?
In the formula: Q: total irrigation quantity (liter)
Q: the maximum water carrying capacity (liter) of tank body
N: periodicity.
3, anti-clogging property:
Operation principle and anti-clogging performance evaluation through to water dropper can be done a understanding fully to the performance of anti-blockage of drip irrigation jar; The crop irrigation system to drip irrigation mode requirement is: water will below be water droplet head hydraulic formula (selecting from Mr. Zhang Zhixin work " drip irrigation project planning and designing principle and application ") with the water droplet form timely and appropriately to root system supply moisture and the nutrient of crop
Laminar flow q=1.272d
2.70(
)
0.8(4-14)
Turbulent flow q=1.776d
2.70(
)
0.56(4-15)
In the formula: q: water dropper flow L/H d: microtubule diameter mm
H: pressure head m L: microtubule length m
This formula explanation " flow through water dropper is to be controlled by water dropper operating pressure h, water dropper flow channel shape, cross dimensions and flow path length usually ".
The measure of an essence of anti-clogging property is exactly to guarantee that (2-12 liters/hours) enlarge microtubule diameter as far as possible under the water dropper flow q value prerequisite up to standard; Existing water dropper microtubule diameter is d=0.85mm; Just can reach the ideal range of q value; And the d value of drip irrigation jar of the present invention can reach d=1.8mm, and the internal diameter expansion is twice above.So improved the anti-obstruction property of system greatly.
Referring to Fig. 4, this is the flow and the hydraulic pressure functional arrangement of existing water dropper, and wherein constant is designed to
q=1.776d
2.70(h/L)
0.56
Q--water dropper flow L/h in the formula (rise/hour)
D-microtubule diameter, value 0.85mm
L-microtubule major diameter, value 0.5m
H-pressure head, value 0-15m
Referring to Fig. 5, this is flow of the present invention and hydraulic pressure functional arrangement, and wherein constant is designed to
q=1.272d
2.70(h/L)
0.80
Q--water dropper flow L/h in the formula (rise/hour)
D-microtubule diameter, value 1.8 mm
L-microtubule major diameter, value 1.0 m
H-pressure head, value 0-2.0 m.
4, can the drip irrigation jar be interpreted as an airtight space, the water of water dropper not only by gravity effect, also receives atmospheric the influence by the flow that flows out in the tank body.Otherwise can understand like this, use the air inflow of gas control control valve regulation and control atmosphere in jar just can control the water dropper flow.Certainly, it is very accurate that this gas control water regulating valve requirement is done, because air flows in valve flowing channel, do not exist the material of solid to stop up runner.This is a kind of good flow control mode.
5, to water quality requirement: because the microtubule aperture is big, runner is short, anti-blocking property is good; Therefore the requirement to silt, impurity, algae and the chemical precipitates at water source also just reduces; Requirement and investment to filter plant simultaneously also just reduces; Enlarge the scope of application at water source widely, improved service life.
6, cut down the consumption of energy:
Analyze from the hydraulic principle of water dropper, existing water dropper is a step-down, energy dissipator, with the stream of the pressure water on the hollow billet, supplies water to crop root zone through the current with drop after the water dropper energy dissipating, and pump motor will turn round always during irrigating.
And the drip irrigation jar is through pump motor water to be sent into the drip irrigation jar through pipeline, the pump motor of just cutting off the water after being full of of pouring water, and water to crop root zone water supply, does not have not exist the process of step-down energy dissipating through gravity (ability) yet then.Therefore saved energy consumption widely.
7, can be unattended, automaticity is high, (except that pump motor and PLC control system) system can not have electrician's work.The intelligence interface degree is high.
8, cost reduces:
Owing to having reduced and having simplified water treatment equipment, cost of investment reduces.Owing to reduced power consumption, operating cost reduces.Because water pump operation can reduce cost of labor through using PLC control unmanned fully.
9, the water dropper water outlet is uniform and stable: owing to do not receive the influence of landform, landforms and the pipe network loss of flood peak, only rely on the gravity adjustment, after the tank body and the ground surface discrepancy in elevation were confirmed, the uniformity size of water outlet just can have been confirmed.
10, requirements of making is low: can in factory, tank body all be assembled completion, detect performance, method is simple, quick, makes things convenient for batch production, production of machinery and streamline assembling.
11, establishment of component is simple, technology maturation, and reliability is high, and cost of manufacture is low.
12, to crops Different Irrigation system; Can use the startup turn on pump cycle of regulating pump motor to regulate easily that (photosynthesis of crop weakens such as night; Can transfer the long watering period; This electric system in PLC control is easy to accomplish, can also regulate through the Pneumatic valve amount of dripping, and is easy to operate.
13, a drip irrigation jar can use (the design is 1-6) can make crop root zone absorption moisture even for a plurality of droppers simultaneously.
14, use 1 year (or once) to compare with water dropper, reach more than 10 years the service life of drip irrigation jar.
The (4) description of drawings:
Fig. 1 is that general structure of the present invention (profile) is installed and used view;
Fig. 2 is a partly main cutaway view of tank body of the present invention;
Fig. 3 is a partly zoomed-in view of water dropper cover;
Fig. 4 is the flow and the hydraulic pressure relation function figure of existing water dropper;
Fig. 5 is flow of the present invention and hydraulic pressure relation function figure.
Among the figure: 1-pole, 2-suspension ring, 3-tank body, 4-water inlet pipe, 5-outlet pipe, 6-distributor; The 7-delivery hose, the unidirectional exhaust anti-overflow valve of 8-, 9-water dropper cover, 10-arm, 11-tube connector, 12-lifting rope; The 13-blowoff valve, 14-blow-off pipe, 15-bearing, 16-valve rod, 17-pressing plate, 18-seal; 19-gas control control valve, 20-extension spring, 21-air-vent, 22-distribution cavity, 23-tap.
The (5) embodiment:
Referring to Fig. 1,2, the present invention has airtight tank body 3, particularly: unidirectional exhaust anti-overflow valve 8 is installed at the top of tank body 3 (includes valve body, two ball floats are housed, wherein upper floating ball density 0.3g/cm in the valve body
3, following ball float density 0.8 g/cm
3, be provided with dividing plate between two ball floats, have ventilation hole on the dividing plate) gentle control regulation valve 19 (include valve body, ball float is housed in the valve body, the valve body top is provided with air admission hole, is furnished with the air inlet adjustment screw rod), the ball float in valve body, the top of valve body has ventilation hole); Water inlet pipe 4, outlet pipe 5 are installed in the bottom of tank body 3, between water inlet pipe 4 and outlet pipe 5, linked switch are installed, this linked switch includes a bearing 15; Lever valve rod 16 is housed on the bearing 15; The two ends of valve rod 16 are designed with enclosed construction, and wherein an end enclosed construction is arranged over against water inlet pipe 4, and the other end is arranged over against outlet pipe 5; And on valve rod 16, lean on water inlet pipe 4 one sides that extension spring 20 is housed, and distributor 6 is housed in outlet pipe 5 outer termination; Said distributor 6 has distribution cavity, and distribution cavity is provided with five taps 23 (generally designing 1-6 tap), and each tap 23 is connected with a delivery hose 7.
In the embodiment of the invention, preferably the end at delivery hose 7 is equipped with water dropper cover 9, and this water dropper cover 9 has the bowl-type case; Have some air-vents 21 (referring to Fig. 3) on the case; And be provided with suspension ring 2 at tank body 3 tops, and in the bottom of tank body 3 blow-off pipe 14 is housed, be fitted with blowoff valve 13.
The enclosed construction at 16 two ends of valve rod described in the present embodiment includes two respectively more than or equal to the pressing plate 17 of water inlet pipe 4 and outlet pipe 5 external diameters, and rubber seal 18 is equipped with in pressing plate 17 bottom surfaces.
Operation principle of the present invention is: (referring to Fig. 1,2) is according to range of application; Prepare several drip irrigation jars of the present invention; With the drip irrigation jar adopt lifting rope 12 hang in the tree through suspension ring 2 or pole 1 on; Every delivery hose 7 on each drip irrigation jar is arranged into respectively on corresponding crops (or the trees etc.) ground, and general every strain crops are joined a delivery hose, and the water dropper cover 9 that delivery hose is terminal is placed on the ground on crops next door.With the water inlet pipe 4 of drip irrigation jar through the arm 10 (drip irrigation system also includes pump works, distribution cavity) in the tube connector 11 external drip irrigation systems.Original state, the linked switch among the present invention cuts out water inlet pipe 4 at the enclosed construction of effect lower valve rod 16 1 ends of extension spring 20, and the enclosed construction of valve rod 16 other ends is thrown off outlet pipe 5, tank body is anhydrous vacant.Start water pump, the water pump pressurization of drawing water from the water source is through the person in charge, arm; Pressurized water source is pushed the linked switch on the water inlet pipe of the present invention open, in tank body, intakes, and linked switch is under the hydraulic pressure effect; Open water inlet pipe and close outlet pipe simultaneously, when water level rose to the top in the tank body, the following ball float in the then unidirectional exhaust anti-overflow valve 8 rose and closes anti-sealing overflow; Ball float in the gas control control valve 19 rises simultaneously, anti-sealing overflow, and hydraulic pressure rises in the tank body; After water in all drip irrigation jars was filled it up with, water pump stopped to supply water release.Because the hydraulic pressure on the water inlet pipe disappears; The present invention is under extension spring 20 effects, and linked switch cuts out water inlet pipe, opens outlet pipe simultaneously; Water in the tank body drips jar through outlet pipe, delivery hose on the ground to crops, the air inflow scalable amount of dripping of operation gas control control valve 19.After water in the tank body all drips off, can stop certain hour according to design use needs, open water pump again and get into next circulation.
Claims (6)
1. an agricultural irrigation has airtight tank body with gas control flow drip irrigation jar, it is characterized in that: the gentle control regulation valve of unidirectional exhaust anti-overflow valve is installed at the top of tank body; In the bottom of tank body water inlet pipe, outlet pipe are installed, between water inlet pipe and outlet pipe, linked switch are installed, this linked switch includes a bearing; The lever valve rod is housed on the bearing; The two ends of valve rod are designed with enclosed construction, and wherein an end enclosed construction arranges that over against water inlet pipe the other end is arranged over against outlet pipe; And on valve rod, lean on water inlet pipe one side that extension spring is housed, and distributor is housed in the outlet pipe outer termination; Said distributor has distribution cavity, and distribution cavity is provided with some taps, and each tap is connected with a delivery hose.
2. a kind of agricultural irrigation according to claim 1 is characterized in that with gas control flow drip irrigation jar: the distribution cavity of said distributor is provided with 1-6 root arm.
3. a kind of agricultural irrigation according to claim 1 is characterized in that with gas control flow drip irrigation jar: the end at delivery hose is equipped with the water dropper cover, and this water dropper cover has the bowl-type case, has some air-vents on the case.
4. a kind of agricultural irrigation according to claim 1 is characterized in that: be provided with suspension ring at the tank body top with gas control flow drip irrigation jar.
5. a kind of agricultural irrigation according to claim 1 is with gas control flow drip irrigation jar, and it is characterized in that: blow-off pipe is equipped with in the bottom at tank body, is fitted with blowoff valve.
6. a kind of agricultural irrigation according to claim 1 is characterized in that with gas control flow drip irrigation jar: the enclosed construction at said valve rod two ends, include two respectively more than or equal to the pressing plate of water inlet pipe and outlet pipe external diameter, and rubber seal is equipped with in the pressing plate bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210207554XA CN102696451B (en) | 2012-06-23 | 2012-06-23 | Pneumatic control flow drip irrigation tank for agricultural irrigation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210207554XA CN102696451B (en) | 2012-06-23 | 2012-06-23 | Pneumatic control flow drip irrigation tank for agricultural irrigation |
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| Publication Number | Publication Date |
|---|---|
| CN102696451A true CN102696451A (en) | 2012-10-03 |
| CN102696451B CN102696451B (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210207554XA Expired - Fee Related CN102696451B (en) | 2012-06-23 | 2012-06-23 | Pneumatic control flow drip irrigation tank for agricultural irrigation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104782448A (en) * | 2015-04-20 | 2015-07-22 | 中国科学院南京土壤研究所 | Multi-pass steady flow water supply device |
| CN105248254A (en) * | 2015-11-25 | 2016-01-20 | 湖北孚龙管业科技有限公司 | Pressure-bearing tubular drip irrigation tank for agricultural water-saving irrigation |
| CN115250890A (en) * | 2020-08-31 | 2022-11-01 | 长江师范学院 | Automatic irrigation control device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002119137A (en) * | 2001-08-29 | 2002-04-23 | Yukihiro Taniguchi | Unit for plant cultivation, method for cultivating plant, rooftop greening system, method for rooftop greening and valve for capillary tube |
| EP1393619A1 (en) * | 2002-08-19 | 2004-03-03 | Luigi Schneider | Improved tele-irrigation system |
| CN101946653A (en) * | 2010-08-27 | 2011-01-19 | 大连创科君英科技发展有限公司 | Control system for disease preventing and yield increasing machine for greenhouse crops |
| CN102487784A (en) * | 2011-12-12 | 2012-06-13 | 中国农业大学 | Trickle irrigation oxygenation method and trickle irrigation oxygenation device |
-
2012
- 2012-06-23 CN CN201210207554XA patent/CN102696451B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002119137A (en) * | 2001-08-29 | 2002-04-23 | Yukihiro Taniguchi | Unit for plant cultivation, method for cultivating plant, rooftop greening system, method for rooftop greening and valve for capillary tube |
| EP1393619A1 (en) * | 2002-08-19 | 2004-03-03 | Luigi Schneider | Improved tele-irrigation system |
| CN101946653A (en) * | 2010-08-27 | 2011-01-19 | 大连创科君英科技发展有限公司 | Control system for disease preventing and yield increasing machine for greenhouse crops |
| CN102487784A (en) * | 2011-12-12 | 2012-06-13 | 中国农业大学 | Trickle irrigation oxygenation method and trickle irrigation oxygenation device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104782448A (en) * | 2015-04-20 | 2015-07-22 | 中国科学院南京土壤研究所 | Multi-pass steady flow water supply device |
| CN105248254A (en) * | 2015-11-25 | 2016-01-20 | 湖北孚龙管业科技有限公司 | Pressure-bearing tubular drip irrigation tank for agricultural water-saving irrigation |
| CN115250890A (en) * | 2020-08-31 | 2022-11-01 | 长江师范学院 | Automatic irrigation control device |
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| Publication number | Publication date |
|---|---|
| CN102696451B (en) | 2013-04-03 |
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Granted publication date: 20130403 Termination date: 20200623 |