CN114086636B - Water storage formula agricultural crop water-saving irrigation water supply installation - Google Patents
Water storage formula agricultural crop water-saving irrigation water supply installation Download PDFInfo
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- CN114086636B CN114086636B CN202111388190.5A CN202111388190A CN114086636B CN 114086636 B CN114086636 B CN 114086636B CN 202111388190 A CN202111388190 A CN 202111388190A CN 114086636 B CN114086636 B CN 114086636B
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- water
- expansion joint
- adjusting part
- flow
- water storage
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Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B11/00—Arrangements or adaptations of tanks for water supply
- E03B11/10—Arrangements or adaptations of tanks for water supply for public or like main water supply
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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
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
- A01G9/247—Watering arrangements
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B1/00—Methods or layout of installations for water supply
- E03B1/02—Methods or layout of installations for water supply for public or like main supply for industrial use
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons, valves, in the pipe systems
- E03B7/078—Combined units with different devices; Arrangement of different devices with respect to each other
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/09—Component parts or accessories
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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
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Abstract
The invention provides a water storage type agricultural crop water-saving irrigation water supply device, which is characterized in that a water storage container is added in an irrigation waterway to stabilize pumping pressure, and meanwhile, the flow balance distribution of each waterway is realized by combining the structural improvement of each water outlet of a water pipe, so that the difference of irrigation water quantity caused by the difference of the distance of water pipes is prevented; including inlet tube, water storage container and water supply pipeline system, inlet tube connection is in water storage container's upper portion, and is provided with first valve on the inlet tube, water storage container's bottom intercommunication water supply pipeline system, water supply pipeline system includes main line and a plurality of branch pipeline, main line and water storage container bottom intercommunication, and be provided with pump and second valve on the main line, a plurality of branch pipeline intervals set up on the main line, all are provided with steady voltage flow straightener on every branch pipeline.
Description
Technical Field
The invention belongs to the technical field of water-saving irrigation and agricultural crop irrigation and water delivery systems, and particularly relates to a water-storage type agricultural crop water-saving irrigation water supply device.
Background
In recent years, agricultural water-saving irrigation gradually becomes one of the focus problems in the direction of agricultural development, although whether water-saving irrigation should still have many questions and questions, devices and methods for water-saving irrigation such as drip irrigation, micro irrigation, infiltrating irrigation and the like have been continuously appeared and implemented in China, and are one expression of gradually strengthening social environmental awareness, and with the development of modern agriculture, greenhouse planting capable of controlling temperature and even out-of-season planting is rapidly expanded in plain areas, so that the device and the method are widely applied to agricultural economic crops and vegetable planting.
The water resources in northern plain areas are deficient year by year, water supply in greenhouse areas generally adopts a deep well pumping groundwater supply mode, but crops with high economic benefit and large water consumption are always selected in greenhouse planting nowadays, on one hand, the groundwater level in domestic plain areas continuously drops, the greenhouse areas are often concentrated together to greatly increase the water consumption in a small range, the timeliness and the sustainability of the water supply of crops in greenhouse areas are challenged, on the other hand, water vapor in the greenhouse can be condensed on a greenhouse top film to form water drops when too much water vapor is generated, and due to the difference of the water drops in temperature and the environmental temperature, the water drops on the leaves or fruits of crops can easily cause fester, so that the yield is influenced. Therefore, the water storage type crop irrigation system is constructed according to the water characteristics of the greenhouse area, so that water resources such as rainwater, ditch water storage and the like are fully utilized, meanwhile, water supply among rows and ridges of crops in the greenhouse can be distributed in a balanced manner, and convenience of water use by farmers and utilization efficiency of the water resources can be greatly improved.
Disclosure of Invention
Based on the state of the art, the invention provides a water storage type agricultural crop water-saving irrigation water supply device, which is characterized in that a water storage container is added in an irrigation waterway to stabilize the pumping pressure, and meanwhile, the flow balance distribution of each waterway is realized by combining the structural improvement of each water outlet of a water pipe, so that the difference of irrigation water quantity caused by the difference of the distance of water pipes is prevented.
The technical scheme adopted by the invention is as follows: the utility model provides a water storage formula agricultural crop water-saving irrigation water supply installation, includes inlet tube, water storage container and water supply pipeline system, inlet tube connection is on water storage container's upper portion, and is provided with first valve on the inlet tube, water storage container's bottom intercommunication water supply pipeline system, water supply pipeline system includes main line and a plurality of branch pipeline, main line and water storage container bottom intercommunication, and be provided with pump and second valve on the main line, a plurality of branch pipeline intervals set up on the main line, all are provided with steady voltage flow straightener on every branch pipeline.
The pressure-stabilizing and flow-equalizing device comprises a pressure-stabilizing adjusting part and a flow-equalizing adjusting part which are connected in series, wherein one end of the pressure-stabilizing adjusting part, which is far away from the flow-equalizing adjusting part, is fixedly connected with a branch pipeline, the pressure-stabilizing adjusting part consists of an expansion joint shell, an expansion joint sealing cover and a flow-guiding inner cylinder, the expansion joint shell and the expansion joint sealing cover form an expansion joint with a hollow disc-shaped structure, and two ends of the expansion joint outwards extend to form end connecting pipes; the two guide inner cylinders comprise a conical pipe body and a flat pipe body extending outwards from the small-caliber end of the conical pipe body, the large-caliber end of the first guide inner cylinder is connected to one end connecting pipe, the small-caliber end of the first guide inner cylinder faces the inside of the expansion joint, and the large-caliber end of the second guide inner cylinder is connected to the other end connecting pipe, and the small-caliber end of the second guide inner cylinder faces the outside of the expansion joint; the flow equalization adjusting part is internally provided with a hollow channel, and the second flow guide inner cylinder extends into the flow equalization adjusting part.
Specifically, the expansion joint shell body is a hollow disc-shaped body, connecting pipes are formed at the two ends of the hollow disc-shaped body in an outward extending mode, a flange-shaped opening is formed on one side face of the hollow disc-shaped body, a guide supporting plate extending towards the opening side is arranged on the other side face of the hollow disc-shaped body, the width direction of the guide supporting plate is perpendicular to the axis direction of the pressure stabilizing adjusting part, and a first through hole is formed in the guide supporting plate; the expansion joint sealing cover consists of a cover plate matched with the flange type opening to seal the hollow disc-shaped body and a pulling plate extending outwards perpendicularly from the center of the cover plate, the width direction of the pulling plate is also perpendicular to the axial direction of the pressure stabilizing adjusting part, a second through hole is formed in the pulling plate, and the second through hole of the pulling plate is partially overlapped with the first through hole of the guide supporting plate; the constraint structure is formed by the guide supporting plate and the pulling plate, and the flat tube body of the first guide inner cylinder passes through the overlapping part of the second through hole of the pulling plate and the first through hole of the guide supporting plate. The expansion joint shell and the expansion joint sealing cover are fixedly connected through bolts, and it should be recognized that the expansion joint shell and the expansion joint sealing cover can also be fixedly combined together in other manners such as clamping, bonding and the like, and the common effort effect is that the expansion joint can expand under the action of water pressure so that the expansion joint can utilize the expanded body wall to drive the constraint structure inside the expansion joint to change the opening degree of the flat tube body of the first diversion inner tube.
Preferably, the main body of the hollow disc-shaped body of the expansion joint shell and the guide support plate on the side surface of the hollow disc-shaped body are integrally formed by plastic materials, and the guide support plate comprises two guide support plates which are arranged side by side.
The flow equalization adjusting part comprises an adjusting component and a flow equalization adjusting part shell, a hollow channel is formed in the flow equalization adjusting part shell, one end of the hollow channel is fixedly connected with an end connecting pipe of the pressure stabilizing adjusting part, and the second flow guide inner cylinder extends into the flow equalization adjusting part; the side of the flow equalizing adjusting part casing is provided with a threaded hole perpendicular to the axial direction, the adjusting component consists of a hand wheel and a threaded rod integrally connected with the hand wheel, the threaded rod is screwed into the flow equalizing adjusting part casing in a matched mode through the threaded hole, and the end portion of the threaded rod can move up and down along with the screwing to press the flat pipe body of the second flow guiding inner barrel to adjust the opening degree.
In the invention, the water inlet pipe, the water storage container, the main pipeline, the branch pipeline and the pressure stabilizing and flow equalizing device can be made of plastic materials, such as PVC materials, polyethylene, polypropylene and other materials, so that the cost is low, the device is not easy to corrode and damage after long-term release with wet soil, and the longer service life can be ensured.
The technical scheme of the invention has the following advantages:
1. the water storage container provides stable water pressure for the water delivery pump, can utilize the power of the pump to meter irrigation water quantity according to time, meets the requirements of different water consumption of different growth periods of crops, provides stable water pressure and flow for the water delivery pipe, and provides a pressure foundation for realizing flow balance distribution for each water outlet;
2. the irrigation water quantity among different rows of ridges in the greenhouse is basically the same, the total irrigation water quantity can be controlled on the premise of meeting the irrigation water demand of crops, and the condensation phenomenon of water vapor at the top of the greenhouse is reduced;
3. the water delivery pipe and the water storage container can be made of all plastic materials, so that the water delivery pipe and the water storage container are low in cost and have strong corrosion resistance, can be used for a long time for years, and the total investment cost is reduced; and electronic parts such as a flowmeter and a hygrometer are not used, the data such as the flow rate is estimated by utilizing the characteristics of the water power, so that the requirement on the calculation accuracy of the irrigation water quantity is satisfied, and the use of a user is more convenient.
Drawings
FIG. 1 is a general schematic view of an irrigation water supply apparatus of the present invention;
FIG. 2 is a schematic diagram of the structure of the pressure stabilizing and flow equalizing device of the irrigation water supply device;
FIG. 3 is a schematic view of the structure of the pressure stabilizing and regulating part of the irrigation water supply device of the present invention;
FIG. 4 is a schematic cross-sectional view of a pressure stabilizing adjustment section of the irrigation water supply device of the present invention;
FIG. 5 is a schematic view of the flow equalizing part of the irrigation water supply device of the present invention;
FIG. 6 is a schematic cross-sectional view of a flow equalizing portion of the irrigation water supply device of the present invention;
FIG. 7 is a schematic view of an expansion joint housing of the pressure stabilizing adjustment section of the present invention;
FIG. 8 is a schematic diagram of an expansion joint cover structure of the pressure stabilizing adjustment part of the present invention;
FIG. 9 is a schematic view of a guide inner cylinder of the pressure stabilizing and adjusting part of the present invention;
in the figure: 1. the water inlet pipe, 2, the water storage container, 3, main pipeline, 4, lateral pipeline, 5, the second valve, 6, steady voltage flow straightener, 7, steady voltage adjustment part, 8, the adjustment part that flow equalizes, 9, expansion joint casing, 10, expansion joint closing cap, 11, water conservancy diversion inner tube, 12, direction backup pad, 13, adjusting part, 14, the adjustment part casing that flow equalizes.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, the water-storage type agricultural crop water-saving irrigation water supply device of the present invention is a general schematic diagram of the irrigation water supply device of the present invention, and comprises a water inlet pipe 1 and a water storage container 2, wherein the water inlet pipe 1 is installed at the upper part or the top of the water storage container 2 so that the incoming water source has no water storage resistance, meanwhile, the water storage container 2 comprises an openable cover for farmers to add water in a container containing water sources such as rainwater and the like which are not fixed into the water storage container 2, and a first valve (not shown) is further arranged on the water inlet pipe 1; the bottom of water storage container 2 is provided with main pipeline 3, the interval is provided with a plurality of branch pipelines 4 on the main pipeline 3, branch pipeline 4 is shunted the water source and is carried to each row of ridge of planting crop, because the distance between branch pipeline 4 and the water storage container 2 that the interval set up is necessarily different, often near the water yield that water storage container 2 nearest branch pipeline 4 shunted far exceeds the shunt capacity of the branch pipeline 4 far to the water storage container 2 even the extreme end in actual water delivery process, the phenomenon that the water yield is excessive in the row ridge irrigation of the crop of certain area has been led to so, and the water yield is still lacking in the row ridge irrigation of the area that is located the remote area, if to guarantee that the water supply is enough in the whole area, actual irrigation water yield is about to exceed the water yield waste problem that the actual water yield needs one third or more, not only there is unreasonable irrigation to lead to, surplus water yield can often condense a large amount of higher water drops in the canopy, the water drops lead to the withering of leaf and fruit.
Therefore, the irrigation water supply device of the invention is provided with the pressure stabilizing and flow equalizing device 6 on each branch pipe 4, so that the water quantity branched out by each branch pipe 4 is approximately the same, and uniform water-saving irrigation is realized. The end part of the main pipeline 3 connected with the water storage container 2 is also provided with a second valve 5 and a water delivery pump (not shown), the first valve is a normally closed valve, the second valve 5 is a normally open valve, the second valve is used when emergency water closing is carried out, the water depth pressure inside the water storage container 2 provides stable water inlet pressure for the water delivery pump, and the water delivery pump provides necessary water pressure loss for the main pipeline and the pressure stabilizing and flow equalizing devices 6 of the branch pipelines 4.
In the invention, the water inlet pipe 1, the water storage container 2, the main pipeline 3, the branch pipeline 4 and the pressure stabilizing and flow equalizing device 6 can be made of plastic materials, such as PVC materials or polyethylene, polypropylene and other materials, so that the cost is low, the long-term release of the water storage container from moist soil is not easy to corrode and damage, and the long service life can be ensured.
Fig. 2 is a schematic diagram of a voltage-stabilizing and current-equalizing device of the irrigation water supply device, the voltage-stabilizing and current-equalizing device is composed of a voltage-stabilizing adjusting part 7 and a current-equalizing adjusting part 8 which are connected in series, one end of the voltage-stabilizing adjusting part 7 far away from the current-equalizing adjusting part 8 is fixedly connected with a branch pipe 4, preferably in threaded connection, and one end of the current-equalizing adjusting part 8 far away from the voltage-stabilizing adjusting part 7 is provided with external threads so as to be fixedly connected with a continuously prolonged branch pipe.
Fig. 3 to 4 show a schematic view of a structure of a pressure stabilizing and adjusting part of the irrigation water supply device according to the present invention, fig. 4 shows a schematic view of a cross-section structure of a pressure stabilizing and adjusting part of the irrigation water supply device according to the present invention, the pressure stabilizing and adjusting part 7 includes an expansion joint housing 9, an expansion joint cover 10 and a guide inner cylinder 11, the expansion joint housing 9 has a hollow disc-shaped structure, and a specific structure is shown in fig. 7, and is a schematic view of an expansion joint housing of the pressure stabilizing and adjusting part according to the present invention, the expansion joint housing 9 has a hollow disc-shaped body, two ends of the hollow disc-shaped body extend outwards to form a connecting pipe, and one side surface of the hollow disc-shaped body is formed with a flange-shaped opening, and the hollow disc-shaped body has a relatively thin wall thickness, so that the hollow disc-shaped body can expand and deform under water pressure; the other side surface of the hollow disc-shaped body is provided with a guide support plate 12 extending towards the opening side, the width direction of the guide support plate 12 is perpendicular to the axial direction of the pressure stabilizing adjustment part 7, the guide support plate 12 is provided with a first through hole, and preferably, the guide support plate 12 is provided with two guide support plates side by side.
The hollow disc-shaped body, the connecting pipes at the two ends and the internal guide support plate 12 can be integrally formed by plastic materials.
The expansion joint cover 10 is composed of a cover plate matched with the flange type opening to seal the hollow disc-shaped body and a pulling plate extending outwards perpendicularly from the center of the cover plate, fig. 8 is a schematic diagram of the expansion joint cover structure of the pressure stabilizing adjustment part, a second through hole is formed in the pulling plate, when the expansion joint cover 10 is assembled on the expansion joint shell 9, the pulling plate stretches into the space between the two guide support plates 12, the width direction of the pulling plate is perpendicular to the axis direction of the pressure stabilizing adjustment part 7, and the second through hole of the pulling plate is partially overlapped with the first through holes of the two guide support plates 12.
Fig. 9 is a schematic structural view of a guide inner cylinder of the pressure stabilizing adjustment part of the present invention, where the guide inner cylinder 11 includes a conical tube body and a flat tube body extending outward from a small caliber end of the conical tube body, the guide inner cylinder 11 includes two guide inner cylinders, a large caliber end of one guide inner cylinder 11 is fixedly connected with a port of one end connecting tube of the expansion joint housing 9, which is located inside the expansion joint housing, and the flat tube body of the guide inner cylinder 11 passes through a superposition portion of a second through hole of the pulling plate and the first through holes of two guide support plates 12; the large-caliber end of the other guide inner cylinder 11 is fixedly connected with a port of the other end connecting pipe of the expansion joint shell 9, which is positioned outside the expansion joint shell, and the expansion joint shell 9 and the two guide inner cylinders 11 are coaxially arranged.
As shown in fig. 5 to 6, fig. 5 is a schematic structural view of a flow equalization adjusting part of the irrigation water supply device of the present invention, and fig. 6 is a schematic sectional structural view of a flow equalization adjusting part of the irrigation water supply device of the present invention; the flow equalization adjusting part 8 comprises an adjusting component 13 and a flow equalization adjusting part shell 14, wherein a hollow channel is formed in the flow equalization adjusting part shell 14, one end of the hollow channel is fixedly connected with an end connecting pipe of the pressure stabilization adjusting part 7, so that a flow guide inner cylinder 11 which is connected with the end connecting pipe of the expansion joint shell 9 and is positioned at the outer port of the expansion joint shell extends into the hollow channel; the side of the flow equalizing adjusting part casing 14 is provided with a threaded hole perpendicular to the axial direction, the adjusting component 13 is composed of a hand wheel and a threaded rod integrally connected with the hand wheel, the threaded rod is screwed into the flow equalizing adjusting part casing 14 in cooperation with the threaded hole, as shown in fig. 6, the end part of the threaded rod is matched with the flat pipe body part of the flow guiding inner cylinder 11, and when the hand wheel is operated to enable the threaded rod to move towards the direction extending into the flow equalizing adjusting part casing 14, the end part of the threaded rod can press the flat pipe body to enable the opening degree of the flat pipe body to be reduced until the flat pipe body is closed.
The working principle of the voltage and current stabilizing device of the invention is further described below with reference to fig. 4 and 6: the water flow flows in through the connecting pipe at the end part of the expansion joint shell 9, flows through the guide inner cylinder 11 connected with the end part and enters the interior of the expansion joint shell, and then enters the interior of the flow equalizing part shell 14 through the connecting pipe at the other end part of the expansion joint shell 9 and the guide inner cylinder 11;
in this process, the inner guide cylinder 11 located inside the expansion joint housing 9 stabilizes the flowing water flow, the water pressure inside the expansion joint housing 14 is kept approximately stable, and the inner guide cylinder 11 penetrating inside the flow equalizing portion 8 balances the flowing fluid flowing out of the inside of the expansion joint housing 14 again, so that the flow rate value of the flowing water flowing out of the flow equalizing portion 8 is stable, when the water pressure on the branch pipe adjacent to the water storage container is greater than the water pressure on the branch pipe far away from the water storage container, the water pressure inside the expansion joint housing 9 on the branch pipe near the distance is greater than the water pressure inside the expansion joint housing 9 on the branch pipe far away from the water storage container, the expansion joint housing 9 on the branch pipe near the distance expands under the water pressure so as to push the expansion joint sealing cover 10 upwards, and the pulling plate of the expansion joint sealing cover 10 is also driven upwards to move, so that the overlapping portion of the second through holes on the pulling plate and the first through holes of the two guide supporting plates 12 is reduced, the flow area of the flat pipe extending into the overlapping portion is restrained, the water pressure inside the expansion joint housing 9 near the branch pipe near the distance is reduced, the water pressure inside the expansion joint housing 9 near the distance is distributed, and the water pressure inside the expansion joint housing near the distance is balanced.
While the foregoing description of the embodiments of the present invention has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the invention, but rather, it is intended to cover modifications or variations of the equivalent structures or equivalent processes, which may be accomplished by those skilled in the art without undue effort based on the teachings herein, or by direct or indirect application to other related arts, while remaining within the scope of the invention.
Claims (6)
1. The water storage type agricultural crop water-saving irrigation water supply device is characterized by comprising a water inlet pipe, a water storage container and a water supply pipeline system, wherein the water inlet pipe is connected to the upper part of the water storage container, the bottom of the water storage container is communicated with the water supply pipeline system, the water supply pipeline system comprises a main pipeline and a plurality of branch pipelines, the main pipeline is communicated with the bottom of the water storage container, the plurality of branch pipelines are arranged on the main pipeline at intervals, a pressure-stabilizing and flow-equalizing device is arranged on each branch pipeline, and a water pump is further arranged on the end part of the main pipeline, which is connected with the water storage container;
the pressure-stabilizing and flow-equalizing device is formed by connecting a pressure-stabilizing adjusting part and a flow-equalizing adjusting part in series, one end of the pressure-stabilizing adjusting part, which is far away from the flow-equalizing adjusting part, is fixedly connected with a branch pipe, the pressure-stabilizing adjusting part consists of an expansion joint shell, an expansion joint sealing cover and a flow-guiding inner cylinder, the expansion joint shell and the expansion joint sealing cover form an expansion joint with a hollow disc-shaped structure, and two ends of the expansion joint outwards extend to form an end connecting pipe;
the two guide inner cylinders comprise a conical pipe body and a flat pipe body extending outwards from the small-caliber end of the conical pipe body, the large-caliber end of the first guide inner cylinder is connected to one end connecting pipe, the small-caliber end of the first guide inner cylinder faces the inside of the expansion joint, and the large-caliber end of the second guide inner cylinder is connected to the other end connecting pipe, and the small-caliber end of the second guide inner cylinder faces the outside of the expansion joint;
the second flow guide inner cylinder extends into the flow equalization adjusting part;
the expansion joint can expand under the action of water pressure, so that the expansion joint is expanded to expand the body wall to drive the constraint structure in the expansion joint to change the opening degree of the flat pipe body of the first diversion inner cylinder;
the expansion joint comprises an expansion joint body, a connecting pipe, a pressure stabilizing adjusting part, a guide supporting plate, a connecting pipe, a flange type opening, a pressure stabilizing adjusting part and a connecting pipe, wherein the expansion joint body is a hollow disc-shaped body, connecting pipes are outwards formed at two ends of the hollow disc-shaped body in an extending mode, the flange type opening is formed in one side face of the hollow disc-shaped body, the guide supporting plate which extends towards the opening side is arranged on the other side face of the hollow disc-shaped body, the width direction of the guide supporting plate is perpendicular to the axis direction of the pressure stabilizing adjusting part, and a first through hole is formed in the guide supporting plate;
the expansion joint sealing cover consists of a cover plate matched with the flange type opening to seal the hollow disc-shaped body and a pulling plate extending outwards perpendicularly from the center of the cover plate, the width direction of the pulling plate is also perpendicular to the axial direction of the pressure stabilizing adjusting part, a second through hole is formed in the pulling plate, and the second through hole of the pulling plate is partially overlapped with the first through hole of the guide supporting plate;
the guide supporting plate and the pulling plate form the constraint structure, and the flat tube body of the first guide inner cylinder passes through the overlapping part of the second through hole of the pulling plate and the first through hole of the guide supporting plate;
the flow equalization adjusting part comprises an adjusting component and a flow equalization adjusting part shell, a hollow channel is formed in the flow equalization adjusting part shell, one end of the hollow channel is fixedly connected with an end connecting pipe of the pressure stabilizing adjusting part, and the second flow guide inner cylinder extends into the flow equalization adjusting part; the side of the flow equalizing adjusting part casing is provided with a threaded hole perpendicular to the axial direction, the adjusting component consists of a hand wheel and a threaded rod integrally connected with the hand wheel, the threaded rod is screwed into the flow equalizing adjusting part casing in a matched mode through the threaded hole, and the end portion of the threaded rod can move up and down along with the screwing to press the flat pipe body of the second flow guiding inner barrel to adjust the opening degree.
2. The irrigation water supply device according to claim 1, further characterized in that the water inlet pipe, the water storage container, the main pipeline, the branch pipeline and the pressure stabilizing and flow equalizing device are all made of plastic materials.
3. The irrigation water supply device according to claim 1, further characterized in that a first valve is provided on the water inlet pipe, a second valve is further provided on the main pipe, the first valve is a normally closed valve, and the second valve is a normally open valve.
4. The irrigation water supply device according to claim 1, further characterized in that the main body of the hollow disk-like body of the expansion joint housing and the guide support plate on the side surface of the hollow disk-like body are integrally formed of a plastic material, and the guide support plate includes two pieces arranged side by side.
5. The irrigation water supply device according to claim 2, further characterized in that the water inlet pipe, the water storage container, the main pipeline, the branch pipeline and the pressure stabilizing and flow equalizing device are all made of polyethylene, polypropylene or PVC materials.
6. The irrigation water supply device of claim 1 wherein the expansion joint housing and the expansion joint cover are fixedly connected by bolts.
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| CN202111388190.5A CN114086636B (en) | 2021-11-22 | 2021-11-22 | Water storage formula agricultural crop water-saving irrigation water supply installation |
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| CN202111388190.5A CN114086636B (en) | 2021-11-22 | 2021-11-22 | Water storage formula agricultural crop water-saving irrigation water supply installation |
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| CN114086636A CN114086636A (en) | 2022-02-25 |
| CN114086636B true CN114086636B (en) | 2023-08-18 |
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| CN101218884A (en) * | 2008-01-25 | 2008-07-16 | 中国农业大学 | Case type low pressure high volume pressure regulator |
| CN101336603A (en) * | 2008-07-25 | 2009-01-07 | 中国科学院遗传与发育生物学研究所 | Field small-quota irrigation system |
| CN204598872U (en) * | 2015-05-04 | 2015-09-02 | 杭州来昂电子有限公司 | A kind of current-sharing drip irrigation appliance |
| CN204929879U (en) * | 2015-07-20 | 2016-01-06 | 李谋智 | The special current stable-pressure device of a kind of irrigation |
| CN110226492A (en) * | 2019-06-13 | 2019-09-13 | 国电南瑞科技股份有限公司 | A kind of electric irrigation and drainage system constant irrigation device and method of agricultural |
| CN111587769A (en) * | 2020-06-16 | 2020-08-28 | 胡伟峰 | Water-saving irrigation system with pressure-stabilizing constant-flow waterway and water-saving irrigation method thereof |
| CN213153293U (en) * | 2020-09-28 | 2021-05-11 | 陈芳 | Agricultural water-saving irrigation device |
| KR102256529B1 (en) * | 2020-12-17 | 2021-05-26 | 주식회사 경농 | Valve for Irrigation systems |
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