CN213819219U - Multi-path intelligent irrigation device - Google Patents

Multi-path intelligent irrigation device Download PDF

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Publication number
CN213819219U
CN213819219U CN202021925700.9U CN202021925700U CN213819219U CN 213819219 U CN213819219 U CN 213819219U CN 202021925700 U CN202021925700 U CN 202021925700U CN 213819219 U CN213819219 U CN 213819219U
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China
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irrigation
galvanized metal
water
water pump
metal pipeline
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CN202021925700.9U
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樊湘鹏
周建平
许燕
杨晶晶
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Xinjiang University
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Xinjiang University
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Abstract

The utility model provides a multichannel intelligence irrigation equipment, includes multistage centrifugal water pump, multistage centrifugal water pump's delivery port be connected with galvanized metal pipeline, galvanized metal pipeline on install electromagnetic flowmeter, pneumatic solenoid valve in proper order, pneumatic solenoid valve sub-unit connection has water level pressure sensor, the delivery port of motorised valve and galvanized metal pipeline links to each other. The utility model discloses can realize that intelligent accurate control multiple-zone irrigates, the obvious purpose of water conservation fertilizer-saving effect.

Description

Multi-path intelligent irrigation device
Technical Field
The utility model relates to a field irrigation technical field, in particular to multichannel intelligence irrigation equipment.
Background
China is a big agricultural country, the traditional irrigation and water and fertilizer modes are extensive, the water consumption accounts for more than 70% of the total water in China, and not only is the resource waste caused, but also certain damage is caused to the ecology. Timely and accurately predicting the water and fertilizer requirements of crops and scientifically and reasonably applying and measuring the water and fertilizer requirements to carry out intelligent irrigation and urgent development. At present, a plurality of intelligent irrigation modes which are greatly influenced by natural environment and can be used for the synchronous growth of a plurality of crops in a wide-range farmland are seldom involved. Most of irrigation equipment used in a farmland in a larger range at present is transferred from an industrial environment to agriculture for combined use, the equipment is expensive in price and large in occupied space, the influence of the environment is rarely considered, and the irrigation equipment is easily damaged under extreme weather conditions;
disclosure of Invention
In order to solve the technical problem, an object of the utility model is to provide a multichannel intelligence irrigation equipment can realize that the accurate control of intelligence is many, the water conservation economizes on fertilizer the obvious purpose of effect.
In order to realize the purpose, the utility model discloses a technical scheme is:
the utility model provides a multichannel intelligence irrigation equipment, includes multistage centrifugal water pump 1, the delivery port of multistage centrifugal water pump 1 be connected with galvanized metal pipeline 5, galvanized metal pipeline 5 on install electromagnetic flowmeter 2, pneumatic solenoid valve 3 in proper order, the 3 sub-unit connection of pneumatic solenoid valve has water level pressure sensor 4, motorised valve 3 links to each other with galvanized metal pipeline 5's delivery port.
The galvanized metal pipelines 5 are provided with 9 paths in parallel.
The multistage centrifugal water pump 1 adopts a vertical structure.
The water outlet of the galvanized metal pipeline 5 is connected with a drip irrigation belt or a sprinkling irrigation valve.
The utility model has the advantages that:
the utility model discloses well multichannel intelligence irrigation equipment system contains multichannel irrigation pipe, can realize the irrigation in a plurality of different districts, can carry out alone and irrigate to can further expand irrigation way number on the basis that the multichannel was irrigated, compare single-pass irrigation and improved irrigation efficiency greatly.
The utility model discloses multistage centrifugal water pump among well multichannel intelligence irrigation equipment system adopts vertical structure, and area is little, can install in any part of pipeline, is fit for the scene under the multiple weather condition of outdoor field and uses.
Drawings
Fig. 1 is a block diagram of a multi-channel intelligent irrigation system based on knowledge-based engineering.
FIG. 2 is a schematic diagram of a model library and an intelligent decision structure.
Fig. 3 is a structure diagram of a multi-channel intelligent sensing irrigation system.
In fig. 3, the device comprises a multistage centrifugal water pump 1, an electromagnetic flowmeter 2, a pneumatic electromagnetic valve 3, a water level pressure sensor 4 and a galvanized metal pipeline 5.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 3: the multi-channel intelligent sensing irrigation system structure is shown in figure 3 and belongs to an implementation system structure of a multi-channel intelligent irrigation system based on knowledge engineering, the system comprises a multistage centrifugal water pump 1, a water outlet of the multistage centrifugal water pump is connected with 9 channels of galvanized metal pipelines 5 which are connected in parallel, an electromagnetic flowmeter 2 is installed on each channel of galvanized metal pipeline 5 at first, and then a pneumatic solenoid valve 3 is connected, so that damage caused by excessive pressure on the electromagnetic flowmeter after the pneumatic solenoid valve 3 is opened is prevented, a water level pressure sensor 4 is connected to the position of the pneumatic solenoid valve 3, and the electric valve 3 is connected with a water outlet of the galvanized metal pipeline 5.
The multistage centrifugal water pump 1 is of a vertical structure, occupies a small area, has the same caliber, can be installed on any part of a pipeline, adopts a national high-efficiency energy-saving hydraulic model, is stable in operation and small in vibration, can convey water and various water-fertilizer mixed liquids, and is suitable for field crop use scenes under various weather conditions.
The water outlet of the galvanized metal pipeline 5 can be connected with irrigation types such as a drip irrigation belt, a spray irrigation valve and the like, and has corrosion resistance.
Multichannel intelligence perception irrigation system has 9 ways irrigation pipe, can realize the irrigation of 9 different districts, can carry out the irrigation alone to can further expand irrigation way number on 9 ways irrigation's basis, compare single-pass irrigation and improved irrigation efficiency greatly.
The pneumatic electromagnetic valve 3 is an actuator of a multi-channel intelligent sensing irrigation system, and is characterized in that the pneumatic electromagnetic valve has an inherent flow characteristic similar to that of a hundred-percent, a double-bearing structure is adopted, the starting torque is small, and the pneumatic electromagnetic valve has good sensitivity and sensing speed in the remote control process.
The multichannel intelligence perception irrigation system is furnished with electromagnetic flowmeter 4 and level sensor 2 on each irrigation route, and the flow of the water of detectable different irrigation routes of flowing through and the regional water level and the water pressure condition of irrigating, built-in communication module feeds back data to intelligent decision-making system through serial communication mode and carries out the adjustment of irrigation scheme.
As shown in fig. 1 and 2:
the knowledge engineering-based multi-channel intelligent irrigation system mainly comprises a database, a knowledge base, a model base, an intelligent decision system and a multi-channel intelligent sensing irrigation system, and the overall framework is shown in figure 1.
The database is mainly used for acquiring and storing data, and comprises data types including meteorological data, crop data, geographic data, soil data, irrigation data and precipitation data, wherein the meteorological data are acquired by a meteorological service center and a ground small-sized meteorological station; crop data, geographic data, soil data, irrigation data and precipitation data are obtained through analysis of ground sensors arranged in the field and unmanned aerial vehicle low-altitude remote sensing images.
The meteorological data stored in the database mainly include: the highest air temperature, the lowest air temperature, the relative humidity, the average wind speed, the wind speed at a fixed height, the sunshine duration and the like of each region.
The data stored in the database can provide support for the calculation of the knowledge base and the model base, and the relevant data after the model calculation is also stored in the database.
The knowledge base is mainly used for storing reference irrigation water consumption and target yield under different years, different hydrological conditions and different irrigation modes for the relation between the irrigation system of different crops, the crop moisture and the yield in local or similar areas, and can be inquired and known through a visual terminal when in use.
The expression of the knowledge base is realized by 'problem reasoning is carried out by production type rule irrigation knowledge', namely 'if A, B', wherein A represents a precondition, B represents a conclusion or a response to be carried out, and by taking the irrigation duration as an example, according to the air drying, the soil is dry loam, the water resource is underground water, the wind speed is 2m/s, and the irrigation duration can be obtained to be 3 hours.
The model library is a tool system for carrying out comprehensive analysis processing and utilizing data, firstly, calculating the evapotranspiration of a reference crop by a Penman-montetith formula, a Hargreaves formula and a Priestley-Taylor formula, and then obtaining the crop water demand by virtue of a crop water demand calculation model, wherein three calculation formulas of the evapotranspiration of the reference crop are as follows:
Penman-Monteith formula
In the formula, ET0In order to refer to the crop evapotranspiration, delta reflects a tangent line of a point on a curve of the relationship between temperature and saturated water pressure, where the temperature value is T; rNRepresents the net radiation dose, in units: MJ/(m)2D); g represents the soil heat flux, in units: MJ/(m)2·d);RnsRepresents the net short wave radiation, in units: MJ/(m)2D); t represents the average air temperature, in units: DEG C; e.g. of the typeaRepresents saturated water pressure in Kpa; e.g. of the typedActual water pressure in Kpa; u shape2Representing the value of the wind speed at a height of 2m, in units: m/s.
Hargreaves' formula
Ra is atmospheric top solar radiation, unit: MJ/m 2. d; tmax is the maximum air temperature in unit; tmin is the lowest air temperature in unit ℃; λ is a parameter in the formula and is an empirical constant.
Priestley-Taylor formula
In the formula, alpha is an empirical constant and takes the value of 1.26; delta reflects a tangent line of a point on a temperature-saturated water pressure relation curve where the temperature value is T; g represents the soil heat flux, in units: MJ/(m)2·d);RNRepresents the net radiation dose, in units: MJ/(m)2·d)。
The model library is used for calculating the water demand of crops in 2 modes, one mode is a water demand calculation method based on water surface evaporation as a parameter, and ET is alpha multiplied by E0Wherein ET is the water demand of crops in a certain period of time and the unit is mm; e0And the water surface evaporation amount in the same time period with ET is calculated by the depth unit of the water layer, and alpha is the water demand coefficient. The other method is a method based on the reference crop transpiration, and the method is calculated on the basis of the reference crop transpiration and a correction coefficient, and the calculation formula is as follows: ET ═ Kc×ET0,ET0Represents the evapotranspiration of a reference crop in mm/d, and can be calculated in three ways as described in 6; kcIs the comprehensive coefficient of the crops and is set according to different soil factors.
The intelligent irrigation decision system obtains the irrigation water consumption of crops by combining a water balance equation after calculating the water demand of the crops, so as to generate an irrigation decision, wherein the water balance equation is as follows: i + P + G is ET + D + R + -ASW, wherein I is the irrigation quantity in the time period T; p is the precipitation in the T period; g is the groundwater replenishment amount in the time period T; ET is the water demand of crops in the T time period; d is the deep penetration amount; r is the ground runoff; ASW is the effective water storage capacity of soil at the beginning of a time interval, and the irrigation capacity is calculated according to the equation: i ═ ET + D + R-P-G ± ASW.
The intelligent irrigation decision-making system is correspondingly set according to the flow and the flow speed of the water pump in the multi-channel irrigation intelligent sensing system after obtaining the irrigation quantity, and the irrigation instructions are remotely sent to the water pump and the electromagnetic valve through the STM32 single chip microcomputer by utilizing a serial communication modbus protocol, so that crop irrigation is realized.

Claims (4)

1. The utility model provides a multichannel intelligence irrigation equipment, its characterized in that, includes multistage centrifugal water pump (1), the delivery port of multistage centrifugal water pump (1) be connected with galvanized metal pipeline (5), galvanized metal pipeline (5) on install electromagnetic flowmeter (2), pneumatic solenoid valve (3) in proper order, pneumatic solenoid valve (3) sub-unit connection has water level pressure sensor (4), pneumatic solenoid valve (3) link to each other with the delivery port of galvanized metal pipeline (5).
2. A multi-channel intelligent irrigation device according to claim 1, wherein 9 galvanized metal pipes (5) are connected in parallel.
3. A multi-channel intelligent irrigation device according to claim 1, characterized in that said multi-stage centrifugal water pump (1) is of a vertical structure.
4. The intelligent multi-path irrigation device as claimed in claim 1, wherein the outlet of the galvanized metal pipe (5) is connected with a drip tape or a sprinkler irrigation valve.
CN202021925700.9U 2020-09-02 2020-09-02 Multi-path intelligent irrigation device Active CN213819219U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021925700.9U CN213819219U (en) 2020-09-02 2020-09-02 Multi-path intelligent irrigation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021925700.9U CN213819219U (en) 2020-09-02 2020-09-02 Multi-path intelligent irrigation device

Publications (1)

Publication Number Publication Date
CN213819219U true CN213819219U (en) 2021-07-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021925700.9U Active CN213819219U (en) 2020-09-02 2020-09-02 Multi-path intelligent irrigation device

Country Status (1)

Country Link
CN (1) CN213819219U (en)

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