CN111328682B - Crack type infiltrating irrigation pipe and processing method - Google Patents
Crack type infiltrating irrigation pipe and processing method Download PDFInfo
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- CN111328682B CN111328682B CN202010159446.4A CN202010159446A CN111328682B CN 111328682 B CN111328682 B CN 111328682B CN 202010159446 A CN202010159446 A CN 202010159446A CN 111328682 B CN111328682 B CN 111328682B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/06—Watering arrangements making use of perforated pipe-lines located in the soil
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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 a crack type infiltrating irrigation pipe and a processing method, the crack type infiltrating irrigation pipe is a tubular structure and comprises a pipe body, a plurality of cracks which are uniformly distributed and have consistent directions are formed on the pipe body according to fiber lines, a hollow pipe cavity is defined by a core layer of the pipe body, the inner surface and the outer surface of the core layer are both smooth surfaces, when water flows into the hollow pipe cavity, the cracks are formed by water pressure under the action of water flow pressure, and water in the hollow pipe cavity flows out through the cracks formed by the cracks along the radial direction of the pipe body, so that water outlet infiltrating irrigation is realized. The crack type infiltrating irrigation pipe is high in quality, environment-friendly and pollution-free, can prolong the water delivery irrigation distance, enables water to seep out from the cracks of the pipe, can increase the yield and income by more than 20%, and has remarkable economic benefit. The product of the invention can save water by more than 40 percent compared with spray irrigation, has high irrigation uniformity and high irrigation efficiency, and can promote the growth of crops.
Description
Technical Field
The invention relates to the technical field of agricultural irrigation, in particular to a crack type infiltrating irrigation pipe and a processing method thereof.
Background
With the steady increase of population, water becomes more and more important, water resources become more and more scarce, and the price becomes more and more expensive.
In the prior art, agricultural irrigation mostly adopts a large-water flood irrigation or spray irrigation mode, plants cannot fully absorb moisture, most of moisture is lost into air or seeps into the deep layer of soil due to evaporation, and a large amount of waste is caused; and the large water flood irrigation can also have adverse effects on the soil, resulting in soil erosion and saline-alkali accumulation.
The problem of water waste and soil erosion can be solved in filtration irrigation, but the crackle formula filtration irrigation pipe among the prior art is the punctiform and goes out water, easily receives the quality of water influence, and especially the impurity in aqueous easily blocks up the apopore, and washs the difficulty.
In addition, the crack type infiltrating irrigation pipe in the prior art has uneven water outlet along the water flowing direction, the more the resistance of the downstream water flow is, the larger the pressure drop of the water flow is, the less the downstream water outlet is compared with the upstream water outlet, and further, the plants positioned at the downstream cannot obtain enough irrigation water, so that the balanced growth of the plants is influenced.
In addition, after the crack type infiltrating irrigation pipe is buried underground, the roots of the plants can gradually grow towards the direction of the crack type infiltrating irrigation pipe due to the instinct of absorbing water, and the roots of the plants can tightly wrap the crack type infiltrating irrigation pipe for a long time, so that the pipeline is blocked.
Disclosure of Invention
The invention aims to provide a crack type infiltrating irrigation pipe, and the technical problems to be solved at least comprise how to avoid the blockage of the crack type infiltrating irrigation pipe and how to make the water yield of the upstream and the downstream consistent.
In order to achieve the purpose, the invention provides a crack type infiltrating irrigation pipe which is of a tubular structure and comprises a pipe body, wherein a plurality of cracks which are uniformly distributed and have consistent directions are formed on the pipe body according to fiber lines, a hollow pipe cavity is defined by a core layer of the pipe body, the inner surface and the outer surface of the core layer are smooth surfaces, when water flows into the hollow pipe cavity, the cracks are formed by water pressure under the action of water flow pressure, and water in the hollow pipe cavity flows out through the cracks formed by the cracks along the radial direction of the pipe body, so that water outlet infiltrating irrigation is achieved.
The crack type infiltrating irrigation pipe also comprises a pressure regulating device, wherein the pressure regulating device is inserted into the hollow pipe cavity along the axial direction, the upper surface of the pressure regulating device is arranged close to the crack, and the left side and the right side of the pressure regulating device are respectively attached to the inner surface of the hollow pipe cavity.
The pressure regulating device is characterized in that a top groove is formed in the upper surface of the pressure regulating device, fish bone plates are arranged on the bottom surface of the top groove along the axial direction of a hollow tube cavity, saw tooth blocks are arranged on the left side and the right side of each fish bone plate respectively, and triangular protruding portions of the saw tooth blocks and the fish bone plates are arranged in a staggered mode, so that a channel is formed between the saw tooth blocks and the fish bone plates.
One end of the fish bone plate is provided with an arc-shaped connecting plate, one end of the arc-shaped connecting plate is connected with the fish bone plate, and the other end of the arc-shaped connecting plate is connected with the side wall of the pressure regulating device.
The other end of the fishbone plate is provided with a triangular cone, one side of the triangular cone is provided with a first lip and a second lip, a fishmouth part is formed between the first lip and the second lip, and the top tip of the triangular cone is inserted into the fishmouth part.
A plurality of parallel drainage ribs are further arranged on the lower surface of the pressure regulating device along the axial direction of the hollow tube cavity, and an overflowing channel is clamped between every two adjacent drainage ribs.
The upper surface of the pressure regulating device is also provided with a measuring groove, and the bottom surface of the measuring groove is provided with a plurality of conical bulges; a concentration sensor is arranged in the conical bulge; the concentration sensor is used for detecting the concentration of the root growth inhibitor; the water inlet of the crack type infiltrating irrigation pipe is also connected with the medicine storage tank through a medicine supply pipe; the medicine storage tank is filled with a root growth inhibitor; the medicine supply pipe is provided with a control valve for controlling the on-off of the medicine supply pipe; the control valve and the concentration sensor are electrically connected with the controller; the concentration sensors are used for detecting the concentration of the root growth inhibitor in the crack type infiltrating irrigation pipe and transmitting the detection result to the controller, a concentration standard value is preset in the controller, and when the concentration value detected by any one of the concentration sensors is greater than the concentration standard value, the controller immediately sends a control signal to the control valve on the pesticide supply pipe and controls the control valve to be closed immediately; when the concentration values detected by all the concentration sensors are smaller than the concentration standard value, after a preset time, the controller sends a control signal to the control valve on the medicine supply pipe to control the control valve to open until the concentration values detected by all the concentration sensors are close to the concentration standard value, and the controller controls the control valve to stabilize the opening at the moment.
The controller still is connected with the power, the controller passes through power supply circuit and is connected with the power, power supply circuit includes:
a ninth resistor, a first end of which is connected with the positive electrode of the controller power supply, a second end of which is connected with one end of an eighth resistor, and the other end of the eighth resistor is grounded;
a tenth resistor, a first end of which is connected with the positive electrode of the controller power supply;
a reference electrode of the voltage stabilizing integrated chip is connected with the second end of the ninth resistor, a cathode of the voltage stabilizing integrated chip is connected with the second end of the tenth resistor, and an anode of the voltage stabilizing integrated chip is grounded;
one end of the eleventh resistor is connected with the second end of the tenth resistor, and the other end of the eleventh resistor is grounded;
the negative input end of the second operational amplifier is connected with the second end of the tenth resistor;
one end of the twelfth resistor is connected with the positive input end of the second operational amplifier, and the other end of the twelfth resistor is grounded;
one end of the sixth resistor is connected with the positive input end of the second operational amplifier, and the other end of the sixth resistor is connected with the power supply positive electrode of the controller;
one end of the third capacitor is connected with the positive input end of the second operational amplifier, and the other end of the third capacitor is connected with the power supply end of the second operational amplifier;
the base electrode of the transistor is connected with the output end of the second operational amplifier, and the emitting electrode of the transistor is grounded;
the input end of the third voltage-stabilizing integrated chip is connected with the collector of the transistor, and the reference voltage end of the third voltage-stabilizing integrated chip is connected with the positive electrode of the power supply of the controller;
the input end of the second integrated chip is connected with the output end of the third voltage-stabilizing integrated chip;
one end of the fifth capacitor is connected with the input end of the second integrated chip, and the other end of the fifth capacitor is grounded;
the cathode of the third diode is connected with the output end of the second integrated chip;
one end of the inductor is connected with the output end of the second integrated chip;
and one end of the fuse link is connected with the other end of the inductor, and the other end of the fuse link is connected with a power supply end of the controller.
Preferably, the third voltage stabilization integrated chip is integrated with a current conversion circuit, and the current conversion circuit is used for converting the current of the controller power supply into a proper current for the controller to use.
A plurality of the concentration sensor respectively through the conditioning circuit connection controller, the conditioning circuit includes:
a second diode, a cathode of which is connected to the concentration sensor;
one end of the first resistor is connected with a first power supply, and the other end of the first resistor is connected with the anode of the second diode;
a first end of the second resistor is connected with the anode of the second diode;
the cathode of the first diode is connected with the second end of the second resistor, and the anode of the first diode is grounded;
one end of the third resistor is connected with the second end of the second resistor;
the negative input end of the first operational amplifier is connected with the other end of the third resistor, and the output end of the first operational amplifier is connected with the controller;
one end of the second capacitor is connected with the negative input end of the first operational amplifier, and the other end of the second capacitor is connected with the positive input end of the first operational amplifier;
one end of the fourth capacitor is connected with the second end of the second resistor, and the other end of the fourth capacitor is grounded;
one end of the fifth resistor is connected with the positive input end of the first operational amplifier, and the other end of the fifth resistor is grounded;
one end of the fourth resistor is connected with the first power supply, and the other end of the fourth resistor is connected with the positive input end of the first operational amplifier;
one end of the seventh resistor is connected with the positive input end of the first operational amplifier, and the other end of the seventh resistor is connected with the output end of the first operational amplifier;
and one end of the first capacitor is connected with a first power supply, and the other end of the first capacitor is connected with the output end of the first operational amplifier.
The invention also provides a processing method of the crack type infiltrating irrigation pipe, which comprises the following steps:
firstly, PVC, PE and/or glass fiber is processed into a pipe body through high-temperature injection molding and cooling extrusion, and a plurality of cracks which are uniformly distributed and have consistent directions are formed on a pipeline according to fiber grains;
secondly, manufacturing a pressure regulating device by using Thermoplastic Polyolefin (TPO) and silicon rubber;
thirdly, a concentration sensor is arranged in the conical bulge of the pressure regulating device, and the terminal of the concentration sensor is reserved with enough length; the pressure regulating device is bonded inside the pipe body.
Advantageous effects
Compared with the prior art, the invention has the beneficial effects that: the crack type infiltrating irrigation pipe provided by the invention is high in quality, environment-friendly and pollution-free, can prolong the water delivery irrigation distance, enables water to seep out from the pipeline cracks, can increase the yield and income by more than 20%, and has remarkable economic benefit. The product of the invention can save water by more than 40 percent compared with spray irrigation, has high irrigation uniformity and high irrigation efficiency, and can promote the growth of crops.
The water outlet hole of the crack type infiltrating irrigation pipe is flat and is not easily blocked by granular impurities and root systems; the crack type infiltrating irrigation pipe has the advantages of long service life and blockage resistance; the flat gap is uniform in water outlet, and long-distance water delivery is facilitated.
In addition, the crack type infiltrating irrigation pipe is also provided with a pressure regulating device, so that the water flow pressure between the upstream and downstream can be balanced, and the water flow outlet quantity of the upstream and downstream is basically kept consistent.
In addition, the crack type infiltrating irrigation pipe provided by the invention fully considers the influence of the growth of the root hairs of the plants on the crack type infiltrating irrigation pipe, inhibits the growth trend of the root hairs of the plants towards the crack type infiltrating irrigation pipe by an automatic means, does not damage the normal growth of the root hairs of the plants, and solves the technical problem of blockage of the crack type infiltrating irrigation pipe caused by the wrapping of the root hairs of the plants.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a schematic structural view of a cracked type infiltrating irrigation pipe of the present invention.
Fig. 2 is a schematic structural diagram of the pressure regulating device of the present invention.
Fig. 3 is a bottom view of the pressure regulating device of the present invention.
FIG. 4 is a side view of the cracked infiltrating irrigation pipe of the present invention.
Fig. 5 is a circuit diagram of the controller of the present invention.
FIG. 6 is a schematic view of an installation of the cracked infiltrating irrigation pipe of the present invention.
FIG. 7 is another schematic view of the installation of the cracked infiltrating irrigation pipe of the present invention.
Detailed Description
The present invention is described in more detail below to facilitate an understanding of the present invention.
As shown in fig. 1 to 5, the crack type infiltrating irrigation pipe of the present invention is a tubular structure, and includes a pipe body 1, a plurality of cracks 2 uniformly distributed and in the same direction are formed on the pipe body 1 according to fiber lines, a hollow pipe cavity 3 is enclosed by a core layer 4 of the pipe body, both an inner surface 5 and an outer surface 6 of the core layer 4 are smooth surfaces, when water flows into the hollow pipe cavity 3, under the action of water flow pressure, the water pressure causes the cracks 2 to form gaps, and water in the hollow pipe cavity 3 flows out of the hollow pipe cavity through the gaps formed by the cracks 2 along the radial direction of the pipe body, thereby realizing water outlet infiltrating irrigation.
Preferably, the crack 2 is a flat slit with a flat shape.
As shown in fig. 2 to 4, the crack type infiltrating irrigation pipe of the present invention further comprises a pressure regulating device 20, wherein the pressure regulating device is inserted into the hollow pipe cavity 3 along the axial direction, the upper surface of the pressure regulating device is arranged close to the crack 2, and the left side and the right side of the pressure regulating device are respectively attached to the inner surface of the hollow pipe cavity.
Be provided with overhead tank 60 on the upper surface of pressure regulating device, be provided with fish bone plate 51 along the axial of cavity lumen on the bottom surface 61 of overhead tank, the left and right sides of fish bone plate is provided with sawtooth block 52 respectively, sawtooth block with the crisscross setting of the triangle protruding portion of fish bone plate sawtooth block with form the double-layered way 50 between the fish bone plate.
One end of the fish bone plate is provided with an arc-shaped connecting plate 30, one end of the arc-shaped connecting plate is connected with the fish bone plate, and the other end of the arc-shaped connecting plate is connected with the side wall of the pressure regulating device.
The other end of the fishbone plate is provided with a triangular cone part 63, one side of the triangular cone part is provided with a first lip 62 and a second lip 64, a fishmouth part is formed between the first lip 62 and the second lip 64, and the top tip of the triangular cone part is inserted into the fishmouth part.
The upper surface of the pressure regulating device is also provided with a measuring groove 40, and the bottom surface of the measuring groove is provided with a plurality of conical protrusions 41.
As shown in fig. 3, a plurality of parallel drainage ribs are further arranged on the lower surface of the pressure regulating device along the axial direction of the hollow tube cavity, and a flow passage is clamped between adjacent drainage ribs.
In the embodiment shown in fig. 3, the flow guide ribs include a first flow guide rib 25, a second flow guide rib 26, a third flow guide rib 27, a fourth flow guide rib 28 and a fifth flow guide rib 29, the transfer passages include a first transfer passage 21, a second transfer passage 22, a third transfer passage 23 and a fourth transfer passage 24, the first transfer passage 21 is sandwiched between the first flow guide rib 25 and the second flow guide rib 26, and the second transfer passage 22 is sandwiched between the second flow guide rib 26 and the third flow guide rib 27; the third transfer channel 23 is sandwiched between the third flow directing rib 27 and the fourth flow directing rib 28; the fourth transfer channel 24 is sandwiched between the fourth flow-directing rib 28 and the fifth flow-directing rib 29.
Further preferably, a bottom groove 31 is formed in the lower surface of the pressure regulating device, the second flow guiding rib 26, the third flow guiding rib 27 and the fourth flow guiding rib 28 are arranged in the bottom groove, and the first flow guiding rib 25 and the fifth flow guiding rib 29 are arranged outside the bottom groove.
When the crack type infiltrating irrigation pipe is used, the water inlet of the crack type infiltrating irrigation pipe is communicated with a water source, and the water source supplies water with certain pressure to the crack type infiltrating irrigation pipe. The water pressure is gradually reduced due to the influence of resistance in the flowing process of the water, so that the upstream water pressure is higher, and the downstream water pressure is lower. If no pressure regulating device is arranged, the upstream water pressure is high, more water flows out from the gap formed by the crack 2, the downstream water pressure is low, and less water flows out from the gap formed by the crack 2, so that the downstream plants cannot obtain enough water, and the normal growth of the downstream plants is influenced.
After the pressure regulating device is arranged, in a place with high water pressure, the upper surface of the pressure regulating device is driven by the pressure of water to expand towards the position of the crack 2, the triangular protruding parts of the sawtooth blocks 52 and the fishbone plates 51 move towards the directions away from each other, the clamping channel 50 is gradually widened, the space between the pressure regulating device and the crack 2 is reduced, and the total amount of water flowing out through the crack 2 is reduced. Meanwhile, as the sawtooth blocks 52 and the fishbone plates 51 are far away, the resistance of the sawtooth blocks 52 and the fishbone plates 51 to water is increased, and the water pressure is reduced to a certain extent.
In the place where the water pressure is low, the pressure of the water is not enough to drive the upper surface of the pressure regulating device to expand toward the position of the crack 2, the saw tooth block 52 and the triangular protrusion of the fishbone plate 51 move toward the direction of approaching each other, the nip 50 becomes gradually narrower, the space between the pressure regulating device and the crack 2 becomes larger, so that the total amount of the water that can flow out through the crack 2 becomes larger. Meanwhile, as the sawtooth block 52 and the fishbone plate 51 are close to each other, the resistance of the sawtooth block 52 and the fishbone plate 51 to water is reduced, and in an extreme case, the sawtooth block 52 is inserted between triangular protrusions of the fishbone plate 51, the surface through which water flows is equivalent to a plane, so that the resistance is reduced, namely, the pressure drop of the water is reduced.
In conclusion, the pressure regulator effectively regulates the water pressure, so that the total amount of water flowing out through the cracks 2 in the areas with high upstream water pressure is reduced, and the total amount of water flowing out through the cracks 2 in the areas with low downstream water pressure is increased, and the upstream and downstream infiltrating irrigation water quantities tend to be balanced.
One end of the arc-shaped connecting plate 30 is connected with the fishbone plate, and the other end of the arc-shaped connecting plate is connected with the side wall of the pressure regulating device, so that the structural strength of the fishbone plate is improved. The other end of the fish bone plate is provided with a triangular pyramid part 63, and the streamline design of the triangular pyramid part reduces the water flow resistance and avoids unnecessary water pressure loss. The first lip 62 and the second lip 64 have a positioning effect on the triangular pyramid part 63, and the triangular pyramid part 63 is prevented from swinging due to water flow, and water flow resistance is also reduced.
In order to avoid the blockage of the crack 2 by impurities in water, a plurality of mutually parallel drainage ribs are further arranged on the lower surface of the pressure regulating device along the axial direction of the hollow pipe cavity, and an overflowing channel is clamped between every two adjacent drainage ribs. The drainage ribs have a filtering function, so that impurities with larger diameters can only pass through the lower part of the overflowing channel of the pressure regulating device because the impurities cannot enter the overflowing channel; for the impurity with smaller diameter, because the overflowing channel actually reduces the overflowing area, the local flow velocity of the water flow is increased, the large flow velocity is helpful to quickly flush away the impurity with smaller diameter, and the impurity is prevented from blocking the crack 2.
After the crack type infiltrating irrigation pipe is buried underground, the roots of the plants can gradually grow towards the direction of the crack type infiltrating irrigation pipe due to the instinct of absorbing water, and the roots of the plants can tightly wrap the crack type infiltrating irrigation pipe after the time is long, so that the crack type infiltrating irrigation pipe is blocked.
In order to avoid the root hairs of the plants from tightly wrapping the crack type infiltrating irrigation pipe, the applicant finds that the tendency of the root hairs of the plants to grow towards the crack type infiltrating irrigation pipe can be inhibited by introducing a certain amount of root system growth inhibitor into the crack type infiltrating irrigation pipe through a large number of experiments and combining with working experience of many years. However, the type and concentration of the root growth inhibitor must be strictly limited, otherwise damage to the plant may occur.
In the test process, the applicant finds that dinitroaniline, trifluralin or pendimethalin have good root growth inhibition effect and can be used as a root growth inhibitor. The root growth inhibitor can be contained in the drug storage tank, and is fed into the water through the drug supply pipe connected between the drug storage tank and the water inlet of the crack type infiltration irrigation pipe, and the root growth inhibitor and the water enter the crack type infiltration irrigation pipe together and uniformly permeate from inside to outside through the cracks 2 together with the water.
In order to strictly control the concentration of the root growth inhibitor, a concentration sensor 7 is arranged in the conical bulge 41; the concentration sensor is used for detecting the concentration of the root system growth inhibitor. In order to improve the measurement accuracy, each pressure regulating device is provided with a plurality of tapered protrusions 41, and each tapered protrusion 41 is provided with the concentration sensor 7.
The medicine supply pipe is provided with a control valve for controlling the on-off of the medicine supply pipe; control valve and concentration sensor 7 with all be connected with the controller electricity, the controller still is connected with the power, the controller passes through power supply circuit and is connected with the power, as shown in figure 5, power supply circuit includes:
a ninth resistor R9, a first end of which is connected to the positive electrode of the controller power supply, a second end of which is connected to one end of an eighth resistor R8, and the other end of the eighth resistor R8 is grounded;
a tenth resistor R10, a first end of which is connected to the controller power supply positive electrode;
a reference electrode of the voltage stabilizing integrated chip is connected with the second end of the ninth resistor R9, a cathode of the voltage stabilizing integrated chip is connected with the second end of the tenth resistor R10, and an anode of the voltage stabilizing integrated chip is grounded;
an eleventh resistor R11, one end of which is connected to the second end of the tenth resistor R10, and the other end of which is grounded;
a negative input terminal of the second operational amplifier U2 connected to the second terminal of the tenth resistor R10;
a twelfth resistor R12, one end of which is connected to the positive input end of the second operational amplifier U2, and the other end of which is grounded;
a sixth resistor R6, one end of which is connected to the positive input end of the second operational amplifier U2, and the other end of which is connected to the positive electrode of the controller power supply;
a third capacitor C3, one end of which is connected to the positive input end of the second operational amplifier U2, and the other end of which is connected to the power supply end of the second operational amplifier U2;
a base electrode of the transistor Q is connected with the output end of the second operational amplifier U2, and an emitting electrode of the transistor Q is grounded;
the input end of the third voltage-stabilizing integrated chip is connected with the collector of the transistor Q, and the reference voltage end of the third voltage-stabilizing integrated chip is connected with the positive electrode of the power supply of the controller; preferably, the third voltage stabilization integrated chip may be integrated with a current conversion circuit, and convert the current to a suitable current for the controller to use.
The input end of the second integrated chip U4 is connected with the output end of the third voltage-stabilizing integrated chip U5;
a fifth capacitor C5, one end of which is connected to the input terminal of the second integrated chip U4, and the other end of which is grounded;
a cathode of the third diode D3 is connected with the output end of the second integrated chip U4;
an inductor L, wherein one end of the inductor L is connected with the output end of the second integrated chip U4;
one end of the fuse link F is connected with the other end of the inductor L, and the other end of the fuse link F is connected with a power supply end of the controller;
the concentration sensor is respectively connected with the controller through a conditioning circuit, and the conditioning circuit comprises:
a second diode D2 having a cathode connected to the concentration sensor;
a first resistor R1, one end of which is connected to the first power source V1 and the other end of which is connected to the anode of the second diode D2;
a second resistor R2, a first end of which is connected to the anode of the second diode D2;
a first diode D1, the cathode of which is connected to the second end of the second resistor R2, and the anode of which is grounded;
a third resistor R3, one end of the third resistor being connected to the second end of the second resistor R2;
the negative input end of the first operational amplifier U1 is connected with the other end of the third resistor R3, and the output end of the first operational amplifier U1 is connected with the controller;
a second capacitor C2, one end of which is connected to the negative input terminal of the first operational amplifier U1, and the other end of which is connected to the positive input terminal of the first operational amplifier U1;
a fourth capacitor C4, one end of which is connected to the second end of the second resistor R2, and the other end of which is grounded;
a fifth resistor R5, one end of which is connected to the positive input terminal of the first operational amplifier U1, and the other end of which is grounded;
a fourth resistor R4, one end of which is connected to the first power supply V1, and the other end of which is connected to the positive input terminal of the first operational amplifier U1;
a seventh resistor R7, one end of which is connected to the positive input terminal of the first operational amplifier U1, and the other end of which is connected to the output terminal of the first operational amplifier U1;
and a first capacitor C1, one end of which is connected to the first power supply V1, and the other end of which is connected to the output terminal of the first operational amplifier U1.
The working principle and the beneficial effects of the technical scheme are as follows: the concentration sensors are used for detecting the concentration of the root growth inhibitor in the crack type infiltrating irrigation pipe and transmitting the detection result to the controller, a concentration standard value is preset in the controller, and when the concentration value detected by any one of the concentration sensors is greater than the concentration standard value, the controller immediately sends a control signal to the control valve on the pesticide supply pipe to control the control valve to be closed immediately. The flowing water can dilute the root growth inhibitor due to continuous supply of the water, when concentration values detected by all the concentration sensors are smaller than a concentration standard value, after a preset time, the controller sends a control signal to the control valve on the medicine supply pipe to control the control valve to be opened slowly, and until the concentration values detected by all the concentration sensors are close to the concentration standard value, the controller controls the control valve to stabilize the opening at the moment.
In the power supply circuit, the voltage stabilization effect is realized through U3, U4, U5 and D3, low-frequency filtering and high-frequency filtering are realized through C5, C3 and C4, overvoltage protection is realized through U3 and R8-13, and overcurrent protection is realized through L, F. The conditioning circuit realizes filtering and denoising through C1, C2 and C4, and realizes signal amplification and hysteresis comparison through U1, thereby ensuring reliable signal transmission.
The invention also provides a processing method of the crack type infiltrating irrigation pipe, which comprises the following steps:
firstly, PVC, PE and/or glass fiber is processed into a pipe body through high-temperature injection molding and cooling extrusion, and a plurality of cracks which are uniformly distributed and have consistent directions are formed on a pipeline according to fiber grains;
secondly, manufacturing a pressure regulating device by using Thermoplastic Polyolefin (TPO) and silicon rubber;
thirdly, a concentration sensor is arranged in the conical bulge of the pressure regulating device, and the terminal of the concentration sensor is reserved with enough length; the pressure regulating device is bonded inside the pipe body.
The water outlet hole of the crack type infiltrating irrigation pipe is flat, and is not easy to be blocked by granular impurities and root systems; the crack type infiltrating irrigation pipe has the advantages of long service life and blockage resistance; the flat gap is uniform in water outlet, and long-distance water delivery is facilitated.
In the embodiment of the concentration sensor 7 arranged in the conical protrusion 41, the concentration sensor is arranged at a position close to the root system, so that the measurement precision and the control accuracy are high, but the wiring and the pipeline laying on the site are complicated, and in order to simplify the wiring, the present application also provides two alternatives as shown in fig. 6 and 7.
In the alternative shown in fig. 6, the main water source has only one irrigation small area, the diameter of the infiltrating irrigation pipe 83 is 2-3cm, a plurality of infiltrating irrigation pipes are needed to be arranged in the irrigation area, and a water pump or tap water source 81 supplies water to the infiltrating irrigation pipe 83 through a main pipe 82. The medicine storage box 84 supplies the root growth inhibitor to the main pipe 82 through the medicine supply pipe 85. In the irrigation process, the irrigation conditions of each infiltrating irrigation pipe are almost the same, only a concentration sensor is needed to be arranged on the main water pipeline (non-infiltrating irrigation pipe) of the irrigation area, namely the main pipeline 82, and is used for monitoring the concentration of the inhibitor, and the medicine storage box and the medicine supply pipe are directly connected with the main water pipeline (main pipeline 82) of the irrigation district.
In the alternative shown in fig. 7, the main water source is divided into four irrigation zones, each irrigation zone needs to be provided with a plurality of infiltrating irrigation pipes 83, the diameter of the infiltrating irrigation pipes 83 is 2-3cm, and a water pump or tap water source 81 supplies water to the infiltrating irrigation pipes 83 through a secondary water pipe 86. In the irrigation process, the irrigation conditions of each infiltrating irrigation pipeline of the same irrigation district are almost the same, under the condition, a concentration sensor is arranged on a secondary water pipeline (non-infiltrating irrigation pipe) of each irrigation district for monitoring the concentration of an inhibitor, and each irrigation district is respectively connected with a medicine supply pipe through a control valve.
The foregoing describes preferred embodiments of the present invention, but is not intended to limit the invention thereto. Modifications and variations of the embodiments disclosed herein may be made by those skilled in the art without departing from the scope and spirit of the invention.
Claims (8)
1. A crackle type infiltrating irrigation pipe is characterized in that the crackle type infiltrating irrigation pipe is of a tubular structure and comprises a pipe body, a plurality of cracks which are uniformly distributed and have consistent directions are formed on the pipe body according to fiber lines, a hollow pipe cavity is defined by a core layer of the pipe body, the inner surface and the outer surface of the core layer are both smooth surfaces, when water flows into the hollow pipe cavity, the cracks are formed by water pressure under the action of water flow pressure, and water in the hollow pipe cavity flows out through the cracks formed by the cracks along the radial direction of the pipe body, so that water outlet infiltrating irrigation is realized;
the crack type infiltrating irrigation pipe also comprises a pressure regulating device, wherein the pressure regulating device is inserted into the hollow pipe cavity along the axial direction, the upper surface of the pressure regulating device is arranged close to the crack, and the left side and the right side of the pressure regulating device are respectively attached to the inner surface of the hollow pipe cavity;
the upper surface of the pressure regulating device is also provided with a measuring groove, and the bottom surface of the measuring groove is provided with a plurality of conical bulges; a concentration sensor is arranged in the conical bulge; the concentration sensor is used for detecting the concentration of the root growth inhibitor; the water inlet of the crack type infiltrating irrigation pipe is also connected with the medicine storage tank through a medicine supply pipe; the medicine storage tank is filled with a root growth inhibitor; the medicine supply pipe is provided with a control valve for controlling the on-off of the medicine supply pipe; the control valve and the concentration sensor are electrically connected with the controller; the concentration sensors are used for detecting the concentration of the root growth inhibitor in the crack type infiltrating irrigation pipe and transmitting the detection result to the controller, a concentration standard value is preset in the controller, and when the concentration value detected by any one of the concentration sensors is greater than the concentration standard value, the controller immediately sends a control signal to the control valve on the pesticide supply pipe and controls the control valve to be closed immediately; when the concentration values detected by all the concentration sensors are smaller than the concentration standard value, after a preset time, the controller sends a control signal to the control valve on the medicine supply pipe to control the control valve to open until the concentration values detected by all the concentration sensors are close to the concentration standard value, and the controller controls the control valve to stabilize the opening at the moment.
2. The crack type infiltrating irrigation pipe of claim 1, wherein a top groove is formed in the upper surface of the pressure regulating device, a fishbone plate is arranged on the bottom surface of the top groove along the axial direction of the hollow pipe cavity, saw-toothed blocks are respectively arranged on the left side and the right side of the fishbone plate, the saw-toothed blocks and triangular protruding parts of the fishbone plate are arranged in a staggered mode, and a clamping channel is formed between the saw-toothed blocks and the fishbone plate.
3. The crackle-type infiltrating irrigation pipe of claim 2, wherein one end of the fishbone plate is provided with an arc-shaped connecting plate, one end of the arc-shaped connecting plate is connected with the fishbone plate, and the other end is connected with the side wall of the pressure regulating device; the other end of the fishbone plate is provided with a triangular cone, one side of the triangular cone is provided with a first lip and a second lip, a fishmouth part is formed between the first lip and the second lip, and the top tip of the triangular cone is inserted into the fishmouth part.
4. The crack type infiltrating irrigation pipe of claim 1, wherein a plurality of mutually parallel drainage ribs are further arranged on the lower surface of the pressure regulating device along the axial direction of the hollow pipe cavity, and a flow passage is clamped between adjacent drainage ribs.
5. The crackle-type infiltrating irrigation pipe of claim 1, wherein said controller is further connected with a power source, said controller is connected with said power source through a power supply circuit, said power supply circuit comprises:
a ninth resistor, a first end of which is connected with the positive electrode of the controller power supply, a second end of which is connected with one end of an eighth resistor, and the other end of the eighth resistor is grounded;
a tenth resistor, a first end of which is connected with the positive electrode of the controller power supply;
a reference electrode of the voltage stabilizing integrated chip is connected with the second end of the ninth resistor, a cathode of the voltage stabilizing integrated chip is connected with the second end of the tenth resistor, and an anode of the voltage stabilizing integrated chip is grounded;
one end of the eleventh resistor is connected with the second end of the tenth resistor, and the other end of the eleventh resistor is grounded;
the negative input end of the second operational amplifier is connected with the second end of the tenth resistor;
one end of the twelfth resistor is connected with the positive input end of the second operational amplifier, and the other end of the twelfth resistor is grounded;
one end of the sixth resistor is connected with the positive input end of the second operational amplifier, and the other end of the sixth resistor is connected with the power supply positive electrode of the controller;
one end of the third capacitor is connected with the positive input end of the second operational amplifier, and the other end of the third capacitor is connected with the power supply end of the second operational amplifier;
the base electrode of the transistor is connected with the output end of the second operational amplifier, and the emitting electrode of the transistor is grounded;
the input end of the third voltage-stabilizing integrated chip is connected with the collector of the transistor, and the reference voltage end of the third voltage-stabilizing integrated chip is connected with the positive electrode of the power supply of the controller;
the input end of the second integrated chip is connected with the output end of the third voltage-stabilizing integrated chip;
one end of the fifth capacitor is connected with the input end of the second integrated chip, and the other end of the fifth capacitor is grounded;
the cathode of the third diode is connected with the output end of the second integrated chip;
one end of the inductor is connected with the output end of the second integrated chip;
and one end of the fuse link is connected with the other end of the inductor, and the other end of the fuse link is connected with a power supply end of the controller.
6. The crack-type infiltrating irrigation pipe of claim 5, wherein the third voltage-stabilizing integrated chip is integrated with a current conversion circuit for converting the current of the controller power supply to a suitable current for the controller to use.
7. The crackle infiltrating irrigation pipe of claim 5, wherein a plurality of said concentration sensors are connected to a controller through a conditioning circuit respectively, said conditioning circuit comprising:
a second diode, a cathode of which is connected to the concentration sensor;
one end of the first resistor is connected with a first power supply, and the other end of the first resistor is connected with the anode of the second diode;
a first end of the second resistor is connected with the anode of the second diode;
the cathode of the first diode is connected with the second end of the second resistor, and the anode of the first diode is grounded;
one end of the third resistor is connected with the second end of the second resistor;
the negative input end of the first operational amplifier is connected with the other end of the third resistor, and the output end of the first operational amplifier is connected with the controller;
one end of the second capacitor is connected with the negative input end of the first operational amplifier, and the other end of the second capacitor is connected with the positive input end of the first operational amplifier;
one end of the fourth capacitor is connected with the second end of the second resistor, and the other end of the fourth capacitor is grounded;
one end of the fifth resistor is connected with the positive input end of the first operational amplifier, and the other end of the fifth resistor is grounded;
one end of the fourth resistor is connected with the first power supply, and the other end of the fourth resistor is connected with the positive input end of the first operational amplifier;
one end of the seventh resistor is connected with the positive input end of the first operational amplifier, and the other end of the seventh resistor is connected with the output end of the first operational amplifier;
and one end of the first capacitor is connected with a first power supply, and the other end of the first capacitor is connected with the output end of the first operational amplifier.
8. The method for processing a cracked type infiltrating irrigation pipe according to any one of claims 1-7, comprising the steps of:
firstly, PVC, PE and/or glass fiber is processed into a pipe body through high-temperature injection molding and cooling extrusion, and a plurality of cracks which are uniformly distributed and have consistent directions are formed on a pipeline according to fiber grains;
secondly, manufacturing a pressure regulating device by using Thermoplastic Polyolefin (TPO) and silicon rubber;
thirdly, a concentration sensor is arranged in the conical bulge of the pressure regulating device, and the terminal of the concentration sensor is reserved with enough length; the pressure regulating device is bonded inside the pipe body.
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