CN203554909U - Precision irrigating and fertilizing system - Google Patents

Precision irrigating and fertilizing system Download PDF

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Publication number
CN203554909U
CN203554909U CN201320704504.2U CN201320704504U CN203554909U CN 203554909 U CN203554909 U CN 203554909U CN 201320704504 U CN201320704504 U CN 201320704504U CN 203554909 U CN203554909 U CN 203554909U
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China
Prior art keywords
meter
fertilizing
pump
blending tank
valve
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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.)
Withdrawn - After Issue
Application number
CN201320704504.2U
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Chinese (zh)
Inventor
程明
周继华
王俊英
安顺伟
张立秋
王志平
朱文
周孝秋
石然
朱鹏浩
代艳侠
贾松涛
肖长坤
赵懿
刘宝文
刘佳伟
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BEIJING CITY AGRICULTURE TECHNOLOGY SPREADING STATION
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BEIJING CITY AGRICULTURE TECHNOLOGY SPREADING STATION
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Priority to CN201320704504.2U priority Critical patent/CN203554909U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/20Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
    • Y02P60/21Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures

Abstract

The utility model discloses a precision irrigating and fertilizing system. The precision irrigating and fertilizing system comprises a plurality of proportional fertilizing pumps, a plurality of raw liquid tanks, a pH meter, an EC (electrical conductivity) meter and a mixing tank, wherein a plurality of the proportional fertilizing pumps are communicated sequentially, all proportional fertilizing pumps are communicated with the raw liquid tanks respectively, an outlet of the proportional fertilizing pump at the tail end is communicated with the mixing tank, the pH meter and the EC meter are arranged on a communication pipeline, a liquid outlet is arranged at the bottom of the mixing tank, and the liquid outlet is communicated with a water pump. According to the precision irrigating and fertilizing system, the quantity of the raw liquid tanks can be increased or reduced flexibly as required, only proportional fertilizing pumps with the corresponding quantity are added, the fertilizer raw materials can be contained in different raw liquid tanks respectively as required, and therefore, all nutrient elements can be precisely controlled; besides, in a certain flow range, the flow rate of the absorbed fertilizer of the proportional fertilizing pump is in direct proportion to the flow rate of water flowing through the proportional fertilizing pump without influence of the water level of the raw liquid tank.

Description

A kind of precision irrigation fertilization system
Technical field
The utility model relates to a kind of precision irrigation fertilization system, belongs to crop irrigation fertilizer practice field.
Background technology
For the crop of substrate culture or water planting, EC, pH and fertilizer nutrient ratio are three large key elements of nutrient solution.EC is electrical conductivity, represents the conductive capability of ion in solution, and movably charged ion is more, and resistance is just less, and conductive capability is stronger, and therefore EC value is just higher.If the ion concentration of nutrient solution is too high, can cause crop root dehydration, the lighter causes that crop yield and quality decline, severe one causes that fallen leaves are wilting even dead.If nutrient solution ion concentration is too low, the nutrient deficiency of Crop, can cause the weak and underproduction of growing way.Every kind of crop has the nutrient solution pH scope of its adaptation, and pH also can significantly affect the solvability of compound in nutrient solution, if exceed optimum range and will cause precipitation and the inactivation of compound.The nutrients ratio of fertilizer comprises the content ratio of nitrogen in nutrient solution, phosphorus, potassium, calcium, magnesium, sulphur, iron, manganese, copper, zinc, boron, molybdenum element, and Different Crop different growth stage has its suitable nutrients ratio.
At present both at home and abroad cultivation all adopts fertigation machine to realize the control to nutrient solution pH, EC and fertilizer nutrient ratio in producing, as the NutriFit HX fertigation machine of Dutch Priva company.Mainly there is following shortcoming in the prior art including NutriFit HX fertigation machine:
1, fertilizer nutrient ratio regulates limited
The quantity of original fluid container is fixing when machine dispatches from the factory, and has several venturi can have the original fluid container of respective numbers.If the negligible amounts of original fluid container (as NutriFit HX fertigation machine has 3 original fluid containers), just has to multiple fertilizer to be dissolved in same original fluid container, can make like this adjusting of fertilizer nutrient ratio be restricted.Such as adopting following original fluid container formula: A tank is nitric acid; B tank is magnesium sulfate, ammonium dihydrogen phosphate (ADP); C tank is nitrate of lime, potassium nitrate, trace element (chelated iron, manganese sulphate, copper sulphate, zinc sulphate, borax, sodium molybdate).When improving potassium content, just must improve accordingly calcium and micro-content.
2, nutrient solution concentration control is limited
Existing fertigation machine application venturi is inhaled fertile device, and the negative pressure forming while utilizing water through venturi throat sucks irrigation pipeline by stoste.By regulating into the inlet valve of water valve and venturi, realize the control to nutrient solution EC, pH and original fluid container nutrients ratio.There are the following problems: (1), when the water level in different original fluid containers and sour tank differs larger, the fertile speed control of the suction of venturi is inaccurate.Because the fertile speed of the suction of venturi is except relevant with the opening degree of inlet valve, also relevant with the water level in original fluid container, water level is higher, and pressure is higher, inhales fertile speed faster.(2) when the nutrient solution EC in blending tank and acid concentration are higher than desired value, and in blending tank, nutrient solution is when peak level, part nutrient solution can only be pumped to the rear clear water that just can add and realize the dilution to nutrient solution, but the EC of the part nutrient solution pumping at first and acid concentration are higher than desired value.
3, cost is higher
External production scale is larger, as many in European individual facilities area more than 1 hectare, although fertigation machine cost is higher, unit are to share cost equally lower.But domestic production area is generally less, the production scale of peasant household is many at one mu to several mu, and the input cost of unit are fertigation machine is very high.Take the NutriFit HX fertigation machine of Priva company as example, price is about 120,000 yuan of left and right of RMB at present, and common peasant household is difficult to accept.
Utility model content
The purpose of this utility model is to provide a kind of precision irrigation fertilization system, and precision irrigation fertilization system of the present utility model can be realized the essence amount control of nutrient solution EC, pH value and nutrients ratio.
Precision irrigation fertilization system provided by the utility model comprises several ratio fertilizing pumps, original fluid container, pH meter, EC meter and blending tank;
Described several ratio fertilizing pumps are communicated with successively, and each described ratio fertilizing pump is connected with described original fluid container respectively;
The described ratio fertilising delivery side of pump that is positioned at end is connected with described blending tank, and described pH meter and described EC meter are set on the pipeline of this connection;
The bottom of described blending tank is provided with liquid outlet, and described liquid outlet is connected with water pump.
In above-mentioned fertilization system, be positioned at the arrival end connected electromagnetic valve of the described ratio fertilizing pump of head end, for controlling the conveying of water, specifically can select wired or wireless magnetic valve, its diameter specifically can be determined according to the diameter of pipeline.
In above-mentioned fertilization system, in described blending tank, can be provided with cable ball-cock assembly, described cable ball-cock assembly is connected with described magnetic valve, for keeping the water level in described blending tank.
In above-mentioned fertilization system, the pipeline that described pH meter is set is provided with non-return valve, and described non-return valve is located at the port of export place of the described ratio fertilizing pump that is positioned at end, for nutrient solution after preventing closing main line valve, refluxes.
In above-mentioned fertilization system, the pipeline that described pH meter is set is provided with two way valve, described two way valve is located between described blending tank and described EC meter or described pH meter, for controlling the flow direction of nutrient solution: according to the measurement result of described pH meter and described EC meter, undesirable nutrient solution can directly be discharged, and satisfactoryly enters described blending tank.
In above-mentioned fertilization system, described water delivery side of pump is connected with manometer with magnetic valve successively, is respectively used to control the pressure of nutrient solution to the pipeline of the conveying in field and monitoring input field nutrient solution.
In above-mentioned fertilization system, described water pump is connected with irrigation controller with magnetic valve, by controlling the switch of described water pump and described magnetic valve, realizes self-timing rationing nutrient solution, can select to realize the controller of time switch.
In above-mentioned fertilization system, described water delivery side of pump is also connected with described blending tank by pipeline, this pipeline is provided with ball valve and non-return valve, described ball valve is for regulating the nutrient solution uninterrupted of getting back to described blending tank by branch road, and described non-return valve can be avoided nutrient solution reverse flow under siphonage of branch road.
The precision irrigation fertilization system tool that the utility model provides has the following advantages:
1, nutrients ratio flexible adjustment
The utility model can increase or reduce the quantity of original fluid container as required flexibly, only need to add the ratio fertilizing pump of respective numbers, and then can as required fertilizer material be placed on respectively in different original fluid containers, thereby realize, various nutritive elements are carried out respectively to the control of essence amount.
2, nutrient solution concentration control is accurate
In certain range of flow, in the utility model, the fertile flow of the suction of ratio fertilizing pump only to through the discharge of ratio fertilizing pump is directly proportional, and not affected by the water level height of original fluid container.Avoided Venturi inaccurate problem of fertilizer-sucting quantity when original fluid container water-head is larger.If the EC of nutrient solution and pH exceed optimum range, can easily undesirable nutrient solution be discharged by two way valve, guarantee that nutrient solution parameter is in optimum range.
3, with low cost
At present, only approximately 1.5 ten thousand yuan of the system costs of 4 original fluid containers of outfit, are suitable for domestic small-scale agricultural production.Meanwhile, if application can be controlled the irrigation controller of multiple magnetic valves, this cover system can be realized the rotation flow to multiple irrigating units, and cost further reduces.If for example adopt the TORO TMC-212 controller (approximately 800 yuan of the market prices) of U.S. Toro Company, can control 12 magnetic valves, if control the crop in 12 greenhouses simultaneously, only approximately 1200 yuan of the investments in each greenhouse
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model precision irrigation fertilization system.
In figure, each mark is as follows:
1 magnetic valve I, 2 ratio fertilizing pumps, 3 original fluid containers, 4 non-return valve I, 5pH meter, 6EC meter, 7 two way valves, 8 blending tanks, 9 cable ball-cock assemblys, 10 water pumps, 11 ball valves, 12 non-return valve II, 13 magnetic valve II, 14 manometers, 15 irrigation controllers.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further, but the utility model is not limited to following examples.
As shown in Figure 1, the precision irrigation fertilization system that the utility model provides comprises 4 ratio fertilizing pumps 2, pH meter 5, EC meter 6 and blending tank 8.Wherein, 4 ratio fertilizing pumps 2 are communicated with successively, and are positioned at the arrival end connected electromagnetic valve I 1 of the ratio fertilizing pump 2 of head end, for controlling the conveying of water, specifically can select wired or wireless magnetic valve, and its diameter specifically can be determined according to the diameter of pipeline.Each ratio fertilizing pump 2 is connected with an original fluid container 3 respectively.The outlet that is positioned at the ratio fertilizing pump 2 of end is connected with blending tank 8, and pH meter 5 and EC meter 6 are arranged on the pipeline of this connection, for monitoring pH value and the electrical conductivity of nutrient solution; For nutrient solution after preventing closing main line valve refluxes, non-return valve I 4 is set on this pipeline, and this non-return valve I 4 is located at the port of export place of the ratio fertilizing pump 2 that is positioned at end simultaneously.Bottom at blending tank 8 is provided with liquid outlet, this liquid outlet is connected with water pump 10, the outlet of this water pump 10 is connected with manometer 14 with magnetic valve II 13 successively, is respectively used to control the pressure of nutrient solution to the pipeline of the conveying in field and monitoring input field nutrient solution.And this water pump 10 is connected with irrigation controller 15 with magnetic valve II 13, by the switch of controlling water pump 10 and magnetic valve II 13, realize self-timing rationing nutrient solution, can select to realize the controller of time switch.
In the utility model, the outlet of this water pump 10 is also connected with blending tank 8 by pipeline, this pipeline is provided with ball valve 11 and non-return valve II 12, this ball valve 11 is got back to blending tank 8 nutrient solution uninterrupteds for regulating by branch road, thereby regulate the size of the loine pressure of input field nutrient solution, and non-return valve II 12 can be avoided nutrient solution reverse flow under siphonage of branch road.
In the utility model, on the pipeline between EC meter 6 and blending tank 8, two way valve 7 is set, for controlling the flow direction of nutrient solution: according to the measurement result of pH meter 5 and EC meter 6, undesirable nutrient solution can directly be discharged, satisfactory entering in described blending tank 8.
In the utility model, in order to keep the water level in blending tank 8,1 cable ball-cock assembly 9 is set in this blending tank 8, and this cable ball-cock assembly 9 is connected with magnetic valve I 1, to realize the function of controlling water level.
In conjunction with Fig. 1, describe workflow of the present utility model in detail:
Irrigation water first passes through magnetic valve I 1, the ratio of then flowing through fertilizing pump 2, and the quantity of ratio fertilizing pump 2 determines have how many original fluid containers to be just equipped with the ratio fertilizing pump (in the present embodiment being 4) of respective numbers according to the quantity of original fluid container 3.Ratio fertilizing pump 2 can regulate in given range inhales fertile ratio, and as the MixRite ratio fertilizing pump of Israel Tai Fen company, inhaling fertile ratio can regulate arbitrarily at 0.2%~2%, and degree of regulation is 0.1%.If ratio is set as to 1%, mean that liquid volume that the liquid that enters before ratio fertilizing pump and ratio fertilizing pump suck from original fluid container is than being 99:1.During use, should make the fertile ratio of the nutrient solution cycles of concentration of original fluid container 3 and the suction of corresponding ratio fertilizing pump consistent.Irrigation advance is after all proportions fertilizing pump 2, by non-return valve I 4, then flow through and be arranged on pH meter 5 and the EC meter 6 on pipeline, afterwards through a two way valve 7, this two way valve 7 is for controlling the flow direction of nutrient solution, conveniently when pH or EC do not reach desired value, nutrient solution discharged.Last satisfactory nutrient solution flows in blending tank 8.Utilize water pump 10 that nutrient solution is pumped in blending tank 8, nutrient solution is divided into 2 branch roads, and a part is returned to blending tank after ball valve 11 and non-return valve II 12, and a part enters field and carries out fertigation after magnetic valve II 13 and manometer 14.Water pump 10 and magnetic valve 13 are controlled by irrigation controller 15, realize time opening and close, thereby realize, supply at regular time and quantity nutrient solution.The effect of returning to the branch road of blending tank is the flow that regulates nutrient solution supply, makes it meet the requirement to flow of different crop areas, hydraulic pipeline and irrigator.

Claims (8)

1. a precision irrigation fertilization system, is characterized in that:
Described system comprises several ratio fertilizing pumps, several original fluid containers, pH meter, EC meter and blending tank;
Described several ratio fertilizing pumps are communicated with successively, and each described ratio fertilizing pump is connected with described original fluid container respectively;
The described ratio fertilising delivery side of pump that is positioned at end is connected with described blending tank, and described pH meter and described EC meter are set on the pipeline of this connection;
The bottom of described blending tank is provided with liquid outlet, and described liquid outlet is connected with water pump.
2. fertilization system according to claim 1, is characterized in that: the arrival end connected electromagnetic valve that is positioned at the described ratio fertilizing pump of head end.
3. fertilization system according to claim 2, is characterized in that: in described blending tank, be provided with cable ball-cock assembly, described cable ball-cock assembly is connected with described magnetic valve.
4. according to the fertilization system described in any one in claim 1-3, it is characterized in that: the pipeline that described pH meter is set is provided with non-return valve, described non-return valve is located at the port of export place of the described ratio fertilizing pump that is positioned at end.
5. fertilization system according to claim 4, is characterized in that: the pipeline that described pH meter and EC meter are set is provided with two way valve, and described two way valve is located between described blending tank and described EC meter or described pH meter.
6. fertilization system according to claim 5, is characterized in that: described water delivery side of pump is connected with manometer with magnetic valve successively.
7. fertilization system according to claim 6, is characterized in that: described water pump is connected with irrigation controller with described magnetic valve.
8. fertilization system according to claim 7, is characterized in that: described water delivery side of pump is also connected with described blending tank by pipeline, and this pipeline is provided with ball valve and non-return valve.
CN201320704504.2U 2013-11-08 2013-11-08 Precision irrigating and fertilizing system Withdrawn - After Issue CN203554909U (en)

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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103548463A (en) * 2013-11-08 2014-02-05 北京市农业技术推广站 Precise irrigation and fertilization system
CN105103765A (en) * 2015-10-15 2015-12-02 河北润农节水科技股份有限公司 Direct-current electric fertilizer distributor
CN105532399A (en) * 2015-12-18 2016-05-04 北京农业信息技术研究中心 Liquid proportioning system
CN108432437A (en) * 2018-03-01 2018-08-24 深圳春沐源控股有限公司 A kind of method and system of liquid manure cycling and reutilization
CN112997870A (en) * 2019-12-19 2021-06-22 松下知识产权经营株式会社 Plant cultivation method and plant cultivation system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103548463A (en) * 2013-11-08 2014-02-05 北京市农业技术推广站 Precise irrigation and fertilization system
CN105103765A (en) * 2015-10-15 2015-12-02 河北润农节水科技股份有限公司 Direct-current electric fertilizer distributor
CN105532399A (en) * 2015-12-18 2016-05-04 北京农业信息技术研究中心 Liquid proportioning system
CN108432437A (en) * 2018-03-01 2018-08-24 深圳春沐源控股有限公司 A kind of method and system of liquid manure cycling and reutilization
CN108432437B (en) * 2018-03-01 2022-01-28 深圳春沐源控股有限公司 Method and system for recycling water and fertilizer
CN112997870A (en) * 2019-12-19 2021-06-22 松下知识产权经营株式会社 Plant cultivation method and plant cultivation system

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20140423

Effective date of abandoning: 20160120

C25 Abandonment of patent right or utility model to avoid double patenting