Pressure-adjusting type crop root zone water and fertilizer irrigation controlling system
One, technical field:
The present invention relates to a kind of irrigation installation, especially relate to a kind of pressure-adjusting type crop root zone water and fertilizer irrigation controlling system, it is applicable to the irrigation of greenhouse, booth and drilling crop and fruit tree, have water saving, energy-conservation, joint is fertile, the characteristics of taking things easy, can mix fertilising with irrigating, adjustable water saving head keeps stable water pressure simultaneously.
Two, background technology:
Water conservancy is the lifeblood of national economy, is the precious resources of human survival and construction.China is the country that lacks of water resource in the world, and the occupancy volume per person only is equivalent to world occupancy volume per person's 1/4, and the many regional lacks of water in the north are even more serious.Current industrialized agriculture enlarges, but only pays attention to improving microclimate environment, having some defectives aspect the meticulous control technique of pouring water, has restricted energy-conservation, water-saving result.In order to promote industrialized agriculture (greenhouse, booth) to reach a new level, in conjunction with China's actual conditions, enforcement science, meticulous irrigation technique inexpensive, that save water and energy are imperative.
Drip irrigation and infiltration irrigation technology are one of the meticulous irrigation new technologies of saving water and energy, very suitable in the greenhouse, economic crops such as booth or outdoor cropping fruit tree, vegetables, cotton use.China has just introduced complete drip irrigation technique in the eighties, but because of irrigating reasons such as waterpower regulator control system, fertilizer applicator cost of equipment height, promotes very slowly, and the defective of following several respects is arranged in short:
1, adopt with conventional water supply network direct connection supplied with the water source more, and the irrigation system work water pressure easily fluctuates, instability;
Though the system that 2, has is equipped with fertilizer spreading tank or annotates fertile pump special-purpose fertilizing equipments such as " Venturi tubes ", but be difficult for fertilising when hydraulic pressure is low, unstable, operational sequence is many in addition, and the peasant generally is reluctant to use;
3, introduce external proportion expression and inhale fertile device, need pipe network that certain pressure is arranged during work, the expense height about 1500 yuan every, is difficult to promote;
4, design heads such as most of irrigator such as water dropper, drip irrigation pipe, infiltrating irrigation higher (0.06~0.1Mpa), need energy dissipating to drip.On the other hand, reality in conjunction with Chinese countryside, from scientic planting, energy-conservation, water saving economic and practical analysis, general greenhouse, booth area are less, tend to water at random, need with low water head drip irrigation (minute-pressure drip irrigation), with the water fertilising, cost is low, and is easy to operate, be easy to the equipment of the water yield, but meet the equipment appearance as yet at present of above-mentioned requirements.
Three, summary of the invention:
The present invention is in order to solve the weak point in the above-mentioned background technology, a kind of pressure-adjusting type crop root zone water and fertilizer irrigation controlling system is provided, it can adapt to the uniform and stable drip irrigation of low-pressure irrigation system, infiltrating irrigation, the irrigation of nothing pressure, under low water head pressure, supply water at random, without other power pressurization, rational in infrastructure, easy for operation, cheap.
For achieving the above object, the technical solution used in the present invention is:
A kind of pressure-adjusting type crop root zone water and fertilizer control system, it is characterized in that: comprise base, base is provided with elevator, base top is provided with the water pot of regulating and storing, water inlet pipe one end of water pot of regulating and storing is connected with water supply network, the other end is connected with the water level autocontrol valve, and the outlet pipe of the water pot of regulating and storing is exported water pipe with system and linked to each other.
The above-mentioned water pot top of regulating and storing is provided with the fertilizer can that liquid fertilizer is housed, and the drain pipe of fertilizer can links to each other with the outlet pipe of the water pot of regulating and storing.
Be provided with the diving filter in above-mentioned regulate and store water pot and the fertilizer can.
Said system output water pipe is provided with the helix tube that changes fluidised form.
Above-mentioned base is provided with the piston pump that is connected with fertilizer can.
Be equipped with control valve on the water inlet pipe of the above-mentioned water pot of regulating and storing, the drain pipe of fertilizer can and the system's output water pipe.
The above-mentioned water pot of regulating and storing is provided with the water-level observation pipe.
The adjustable range of above-mentioned substructure height is 0~80 centimetre.
Above-mentioned elevator is a hydraulic lifting device.
Above-mentioned elevator is manual step-less adjustment elevator.
Compared with prior art, the advantage and the effect that have of the present invention is as follows:
1, the present invention can provide a kind of can be according to crop growth phase water consumption size, utilize hydraulic lift, regulated at will pressure of supply water, and the root district irrigation control system of assurance pressure of supply water voltage stabilizing, adjustable range is between 0~80 centimetre, can adapt to the uniform and stable irrigation of low pressure irrigate band (pipe) and infiltrating irrigation, head supplies water at random under low hydraulic pressure (about 2~4 meters), and water mixes with water simultaneously and executes liquid fertilizer at any time, do not need other power pressurization, energy-saving effect is obvious.Cost of the present invention is low, scientific and reasonable for structure, easy for operation, suitable different scales, greenhouse by solar heat, booth and drilling crop fruit tree dissimilar, different regions are used, can implement liquid manure accurately irrigates, have energy-conservation, water saving, fertile, the effect of taking things easy of joint, can promote to improve the industrialized agriculture yield and quality.
2, the present invention can reduce the energy consumption of existing drip irrigation, infiltrating irrigation system, only needs 2~4 meters heads, is most appropriate to industrialized agriculture and drilling crop and fruit tree and accurately irrigates.
3, the present invention need not any additionaling power and expensive fertilising special equipment, only utilizes the differing heights liquid level to implement the root district and irrigate from pressing principle that liquid manure is mixed the back, and cost is low, and is easy to operate.
4, the present invention can be under the low pressure head automatic water-supply, close automatically, keep the irrigation system stable water pressure, not influenced by the water supply network water pressure fluctuations, make pour water more even.
5, the present invention is rational in infrastructure, compact, complete function, and complete cost is low, and suitable different scales greenhouse, booth and drilling crop and fruit tree are used.
Four, description of drawings:
Fig. 1 is a structural representation of the present invention;
Among the figure, 1-feed water valve, 2-elevator, 3-water supply hose, the 4-filter of diving under water, 5-articulation, the 6-water pot of regulating and storing, the 7-fertilizer can, 8-water level autocontrol valve, the drain pipe of 9-fertilizer can, 10-water-level observation pipe, 11-regulating switch, 12-system water control valve, 13-flow-disturbing pipe, 14-system output water pipe, 15-base, 16-drip irrigation system shunt valve, 17-irrigator, 18-arm.
Five, embodiment:
Referring to Fig. 1; the present invention includes base 15; base 15 adopts hydraulic lifting; also can adopt hand rotation; the step-less adjustment spiral lifting; all within protection scope of the present invention; the adjustable range of substructure height is 0~80 centimetre; step-less adjustment irrigation system pressure; thereby can regulate irrigator (drip irrigation pipe; the irrigate band) flow; adapt to the crop different growing; the demand of different soil property infiltration rates; wherein hydraulic lifting or hand rotation lifting use existing jacking equipment to finish; base 15 is a steel base; base 15 tops are provided with the stainless steel water pot 6 of regulating and storing; the volume of water pot 6 of regulating and storing is 350~400 liters; water inlet pipe one end of water pot 6 of regulating and storing is connected with water supply network with articulation 5 by water supply hose 3; water supply network is provided with feed water valve 1; the water inlet pipe other end is connected with water level autocontrol valve 8; water level autocontrol valve 8 adopts existing ball-cock assembly; automatically control the water inlet of the water pot 6 of regulating and storing according to water level; the outlet pipe of water pot 6 of regulating and storing links to each other by system's water control valve 12 and system output water pipe 14; system's output water pipe 14 is provided with the flow-disturbing pipe 13 that changes fluidised form; make water through helix tube 13 and system's output water pipe 14 straight-through arms 18 of irrigating; can make water; solution forms the spiral fluidised form in pipe, reach water; fertilizer fully mixes irrigation.System's output water pipe 14 is communicated with irrigator 17, and by irrigation system shunt valve 16 with irrigate arm 18 and link to each other, the water pot 6 of regulating and storing is provided with water-level observation pipe 10 and is used for observed stage, is provided with the filter 4 of diving under water in the water pot 6 of regulating and storing, can prevent to stop up irrigation installation, reduce the loss of flood peak.The regulate and store top of water pot 6 is provided with the fertilizer can 7 that liquid fertilizer is housed, the volume of fertilizer can 7 is 350~400 liters, the drain pipe 9 of fertilizer can 7 links to each other with the outlet pipe of the water pot 6 of regulating and storing, on the drain pipe 9 of fertilizer can 7 and be provided with regulating switch 11 and be used to adjust the fertilizer liquid outlet quantity, also be provided with the diving filter in the fertilizer can 7.In addition, base 15 is provided with the manual type minitype piston pump that is connected with fertilizer can 7, can solution input be regulated and stored in the fertilizer can 7 on water pot 6 tops by demand, uses in order to drip irrigation.
During real work, adjust earlier the height of base 15 as required, open feed water valve 1 and water is filled with regulate and store water pot 6, open the minitype piston pump and in fertilizer can 7, fill with liquid fertilizer, make water, the fertile mixing by regulating regulating switch 11 and system's water control valve 12, by flow-disturbing pipe 13 water, fertilizer fully being mixed once more again forms the spiral fluidised form, irrigates through irrigator 17 and irrigation arm 18.