CN111919725A - Low-pressure gravity infiltration irrigation system suitable for northwest arid region and use method thereof - Google Patents
Low-pressure gravity infiltration irrigation system suitable for northwest arid region and use method thereof Download PDFInfo
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- CN111919725A CN111919725A CN202010885094.0A CN202010885094A CN111919725A CN 111919725 A CN111919725 A CN 111919725A CN 202010885094 A CN202010885094 A CN 202010885094A CN 111919725 A CN111919725 A CN 111919725A
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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
Abstract
The invention discloses a low-pressure gravity infiltration irrigation system suitable for northwest arid regions in the technical field of hydraulic engineering and a use method thereof, wherein the low-pressure gravity infiltration irrigation system comprises a filter screen and a pressure-stabilizing water storage tank, wherein a water conduit is fixed on a water inlet at the upper part of the left side of the pressure-stabilizing water storage tank, the filter screen is fixed on a water inlet port of the water conduit, an overhaul valve is arranged on the water conduit, and the distribution distance and the distribution quantity of capillary pipes are selected according to the type of irrigation vegetation; the whole system does not need to consume energy, the irrigation pressure is provided by the pressure difference generated by the terrain fall, the pressure stabilizing water storage tanks are reasonably distributed to meet the working pressure range, and the water outlet quantity of the irrigation drippers connected with the capillary pipes is uniform; the invention can meet the water demand of various vegetations in ecological restoration, improve the survival rate, reduce the ecological restoration cost by system work, reduce the low-pressure state work of all equipment, reduce the equipment investment, reduce solar radiation and contact with air to prevent aging by fully burying the equipment in a soil layer, prolong the service life of the equipment and protect the environment.
Description
Technical Field
The invention relates to the technical field of hydraulic engineering, in particular to a low-pressure gravity infiltration irrigation system suitable for northwest arid regions and a using method thereof.
Background
The infiltrating irrigation technology belongs to one of effective measures in modern water-saving irrigation, and both the infiltrating irrigation technology and the micro-sprinkling irrigation technology belong to the category of micro-irrigation technology, irrigation water is uniformly delivered to an irrigation area at a small flow rate by erecting a set of low-pressure pipeline water delivery system, and accurately and directly reaches the soil surface or soil layer near the roots of crops, so that the soil around the roots of vegetation continuously keeps good moisture, ventilation and nutrition conditions, the vegetation growth is ensured, and the advantages of the vegetation can be better exerted when the vegetation irrigation system is applied to ecological restoration in northwest arid areas. The low-pressure gravity infiltration irrigation has the advantages of less water consumption and obvious water saving effect, the pipeline is buried in the soil to avoid direct sunlight so as to improve the durability, the gravity low-pressure infiltration irrigation only needs to reasonably utilize the terrain and does not need to consume other energy sources for pressurization, the energy is saved, the environment is protected, and the requirements of ecological recovery environment and power conditions are met.
In recent years, experts of various national scholars mainly research and popularize the filtration irrigation technology in the fields of economic forests and facility agriculture and achieve a plurality of achievements. A large number of field tests are also developed after the infiltration irrigation technology is introduced in China, the crop yield increasing and water saving effects are very obvious, and the current infiltration irrigation technology is widely applied in China. In the economic development process, a large amount of engineering construction disturbs native soil, the demand of recovering vegetation after completion to protect ecology is more and more, methods such as flood irrigation, spray irrigation and drip irrigation are adopted at present, the survival rate of the vegetation is improved, the recovery speed is ensured, but the problems of complex system, large energy consumption, high pipe protection cost, short service life and the like exist in the prior art, and based on the problems, the invention designs the low-pressure gravity infiltration irrigation system suitable for the northwest arid region and the use method thereof to solve the problems.
Disclosure of Invention
The invention aims to provide a low-pressure gravity infiltration irrigation system suitable for northwest arid regions and a using method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the low-pressure gravity infiltration irrigation system suitable for northwest arid regions comprises a filter screen and a pressure-stabilizing water storage tank, wherein a water guide pipe is fixed on a water inlet at the upper part of the left side of the pressure-stabilizing water storage tank, the filter screen is fixed on a water inlet port of the water guide pipe, an overhaul valve is installed on the water guide pipe, a floating plate valve is installed on the inner side of the water inlet of the pressure-stabilizing water storage tank, a sand accumulation groove is formed right opposite to the bottom of the water inlet of the pressure-stabilizing water storage tank, the sand accumulation groove adopts a U-shaped groove, a sand flushing port is connected at the bottommost part of the bottom of the sand accumulation groove, a sand flushing valve is arranged outside the sand flushing port, an overflow port is formed in the inner wall of the pressure-stabilizing water storage tank and at the upper part of the sand flushing port, an overflow pipe is installed on the overflow port, a three-way pipe is connected between the lower part of, the water storage tank is characterized in that a water outlet is formed in the lower portion of the right side of the pressure stabilizing water storage tank, a filter screen partition plate is arranged between the water inlet and the water outlet of the pressure stabilizing water storage tank, a main pipe is connected to the water outlet, a control valve is mounted on the main pipe and close to the pressure stabilizing water storage tank, the other end of the main pipe is connected with a branch pipe, a capillary pipe with a douche is connected to the branch pipe, and the water diversion pipe, the maintenance valve, the control valve, the main pipe, the branch pipe, the capillary pipe and the three-way pipe.
Furthermore, the filter screen adopts the tubulose filter screen and with flange joint for the water diversion pipe.
Further, the water inlet and the kickboard valve threaded connection of steady voltage water storage box, the rubber water seal circle is installed to the water inlet inboard of steady voltage water storage box, steady voltage water storage box passes through threaded connection and installs the rubber water seal circle in the junction with the sand washing mouth of its bottom and the overflow mouth of side, steady voltage water storage box passes through threaded connection and installs the rubber water seal circle in the junction with the delivery port of its right side lower part.
Furthermore, the sand flushing valve, the three-way pipe and the pipeline are connected through fusion welding, the control valve and the main pipe are connected through fusion welding, the main pipe, the branch pipe and the capillary pipe are connected through fusion welding, and the capillary pipe and the irrigator are connected through a jack type quick installation mode.
Further, the inner wall of the pressure stabilizing water storage tank is provided with a notch for installing the filtering grid plate, and both sides of the notch are provided with buckles.
A use method of a low-pressure gravity infiltration irrigation system suitable for northwest arid regions comprises the following steps:
s1: directly taking water from a water source by utilizing the terrain, communicating a water conduit with a filter screen with the water source, and then connecting the water conduit with a pressure-stabilizing water storage tank;
s2: the joint of the water conduit and the pressure-stabilizing water storage tank is provided with an overhaul valve, a water inlet of the pressure-stabilizing water storage tank is provided with a floating plate valve for controlling the water level of the pressure-stabilizing water storage tank, a valve body of the floating plate valve is a ball valve and is connected with a floating plate by a connecting rod, and the floating plate adopts a metal hollow box body structure design and has the self weight of 2 kg;
s3: a sand accumulation groove is arranged right opposite to the bottom of the water inlet of the pressure stabilizing water storage tank, the sand accumulation groove adopts a U-shaped groove, the bottommost part of the bottom is connected with a sand washing port, a sand washing valve is arranged outside to control the opening and closing of the sand washing port, and a sand washing valve connecting pipeline directly extends to a river channel or a drainage channel;
s4: the overflow pipe is connected with the sand washing pipeline outside the sand washing valve;
s5: a filter screen partition plate is arranged between a water inlet and a water outlet of the pressure-stabilizing water storage tank, the pressure-stabilizing water storage tank is divided into two sides, one side of the water inlet accounts for two thirds, the height of the water outlet is 10cm away from the bottom of the pressure-stabilizing water storage tank, a control valve is arranged at the position of the water outlet connected with a main pipe, and a ball valve is adopted as a controller;
s6: the extension of the main pipe enables a water head to reach about 5m and then the branch pipe is connected, the arrangement directions of the branch pipe and the capillary pipe are all along the slope, the branch pipe and the capillary pipe are adjusted according to the terrain on the spot in the engineering, and the uniform water outlet is ensured.
Compared with the prior art, the invention has the beneficial effects that: the working pressure is only 5-10 m, and the parts are mainly made of PVC, so that the cost is low, the construction is simple, the energy is saved, and the environment is protected; each part has strong universality and is easy to identify, so that the installation and the disassembly are simple, the error is not easy to occur, and the construction quality is easy to ensure; the infiltrating irrigation water seeps 10cm upwards and 20cm downwards, no deep seepage loss and surface evaporation loss exist, and the water resource utilization rate is improved by 30 percent; the pump is not needed for pressurization, and only the terrain fall is needed, so that the energy is saved and the environment is protected; the structure is simple, the use value is high, the installation is flexible, namely the water outlet pipe can be connected in series or in parallel, the pressure is stable, and the water outlet amount is uniform; because the water is 10cm below the ground surface, the soil is not hardened, the air permeability is better, and the later management cost is low; the whole system is covered by a soil layer and buried underground, so that the occupied area can be reduced, the traffic and construction operation is facilitated, the aging speed is low, the system can be used for a long time, and pipelines do not need to be replaced; the vegetation irrigation quantity can be adjusted according to the number and the arrangement density of the irrigation emitters, and the application range is wide.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the interior of the pressure stabilizing water storage tank of FIG. 1;
fig. 3 is a right side view of the inside of the pressure stabilizing water storage tank in fig. 1.
In the drawings, the components represented by the respective reference numerals are listed below:
1-filter screen, 2-water conduit, 3-maintenance valve, 4-pressure stabilizing water storage tank, 5-floating plate valve, 6-control valve, 7-main pipe, 8-branch pipe, 9-capillary pipe, 10-sand washing port, 11-sand washing valve, 12-water outlet, 13-filter grid plate, 14-overflow port and 15-three-way pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the low-pressure gravity infiltration irrigation system suitable for northwest arid regions comprises a filter screen 1 and a pressure-stabilizing water storage tank 4, wherein a water conduit 2 is fixed on a water inlet at the upper part of the left side of the pressure-stabilizing water storage tank 4, the filter screen 1 is fixed on a water inlet port of the water conduit 2, an overhaul valve 3 is installed on the water conduit 2, a floating plate valve 5 is installed on the inner side of the water inlet of the pressure-stabilizing water storage tank 4, a sand accumulation groove is arranged right opposite to the bottom of the water inlet of the pressure-stabilizing water storage tank 4, the sand accumulation groove adopts a U-shaped groove, a sand flushing port 10 is connected at the bottommost part of the bottom of the sand accumulation groove, a sand flushing valve 11 is arranged outside the sand flushing port 10, an overflow port 14 is arranged on the upper part of the sand flushing port 10 on the inner wall of the pressure-stabilizing water storage tank 4, an overflow pipe is installed on the overflow port 14, a three-, the water outlet 12 is arranged at the lower part of the right side of the pressure stabilizing water storage tank 4, a filter screen partition plate 13 is arranged between the water inlet and the water outlet 12 of the pressure stabilizing water storage tank 4, the water outlet 12 is connected with a main pipe 7, a control valve 6 is arranged on the main pipe 7 close to the pressure stabilizing water storage tank 4, the other end of the main pipe 7 is connected with a branch pipe 8, a capillary 9 with a douche is connected onto the branch pipe 8, and the water conduit 2, the maintenance valve 3, the control valve 6, the main pipe 7, the branch pipe 8, the capillary 9 and the three-way pipe 15 are all made.
Wherein, filter screen 1 adopts the tubulose filter screen and is connected with leading water pipe 2 with the flange, and filter screen 1 is arranged in preventing impurity entering leading water pipe 2 in the water source, and both are connected with the flange, convenient maintenance.
The water inlet of the pressure stabilizing water storage tank 4 is in threaded connection with the floating plate valve 5, the rubber water seal ring is installed on the inner side of the water inlet of the pressure stabilizing water storage tank 4, the pressure stabilizing water storage tank 4 is in threaded connection with the sand flushing port 10 at the bottom of the pressure stabilizing water storage tank and the overflow port 14 on the side face of the pressure stabilizing water storage tank, the rubber water seal ring is installed at the joint of the pressure stabilizing water storage tank 4 and the water outlet 12 at the lower portion of the right side of the pressure stabilizing water storage tank, and the rubber water seal ring is installed.
The sand flushing valve 11, the three-way pipe 15 and the pipeline are connected through fusion welding, the control valve 6 and the main pipe 7 are connected through fusion welding, the main pipe 7, the branch pipe 8 and the capillary 9 are connected through fusion welding, the capillary 9 and the irrigator are connected through a jack type quick mounting mode, and when replacement and maintenance are needed, the maintenance valve 3 is closed, the sand flushing valve 11 is opened, and the pressure stabilizing water storage tank 4 is emptied.
The inner wall of the pressure stabilizing water storage tank 4 is provided with a notch for installing the filter screen grid plate 13, the two sides of the notch are provided with buckles, the buckles are utilized to prevent displacement, and meanwhile, the filter screen grid plate 13 is convenient to clean and replace in later-period maintenance.
A use method of a low-pressure gravity infiltration irrigation system suitable for northwest arid regions comprises the following steps:
s1: the water is directly taken from a water source by utilizing the terrain, the water taking mode has certain difference according to different water sources, the water is additionally designed according to water source conditions and the terrain, the self-flowing is realized, the energy is not consumed, the water quality of the water source reaches the standard, the sustainable use is finished by one-time arrangement, a water conduit with a filter screen is communicated with the water source, and then the water conduit is connected with a pressure-stabilizing water storage tank;
s2: the joint of the water conduit and the pressure-stabilizing water storage tank is connected with an overhaul valve by fusion welding, the overhaul valve adopts a ball valve, the water flow is conveniently controlled during the maintenance and overhaul of equipment, the design of the pressure-stabilizing water storage tank can ensure the stable working water pressure of the system, and can also store water to meet the water shortage state of a water source so as to ensure that the irrigation is not interrupted, a water inlet of the pressure-stabilizing water storage tank is provided with a floating plate valve for controlling the water level of the pressure-stabilizing water storage tank, the valve body of the floating plate valve is a ball valve and is connected with a floating plate by a connecting rod, the floating plate adopts the structural design of a metal hollow box body, the self weight is 2kg, a limiter is required to be set according to the water level control height of the pressure-stabilizing water storage tank in the installation of the floating plate valve, the floating plate valve is prevented from being damaged due to overhigh water level, the failure, the irrigation rate is 75%, and when the space is too large, ribs can be added to improve the strength;
s3: after the water is injected into the pressure stabilizing water storage tank through the floating plate valve, the water carries sand and gravel to precipitate due to the fact that the flow speed is reduced, a sand accumulation groove is arranged right opposite to the bottom of a water inlet of the pressure stabilizing water storage tank, the sand accumulation groove is a U-shaped groove, a sand washing port is connected to the bottommost position of the bottom of the water inlet, a sand washing valve is arranged outside the water inlet to control the sand washing port to be opened and closed, a sand washing valve connecting pipeline directly extends to a river channel or a drainage channel, and sand can be discharged periodically or according;
s4: the overflow pipe is connected between the lower part of the overflow pipe connected with the overflow port and a sand washing pipeline externally connected with the sand washing valve, and the other end of the three-way pipe extends to a river channel or a drainage channel through a pipeline;
s5: the filter screen partition board is arranged between the water inlet and the water outlet of the pressure-stabilizing water storage tank, the pressure-stabilizing water storage tank is divided into two sides, one side of the water inlet accounts for two thirds, the water outlet is arranged at a height which is 10cm away from the bottom of the pressure-stabilizing water storage tank, silt is prevented from being brought into a pipeline, the control valve is arranged at the position where the water outlet is connected with a main pipe, the controller adopts a ball valve, the irrigation strength is controlled, the irrigation efficiency is improved, impurities in water can be filtered by the filter screen partition board, meanwhile, the interference of water flow of the water inlet on the state of;
s6: the main pipe extends to enable a water head to reach about 5m and then starts to be connected with the branch pipes, the arrangement directions of the branch pipes and the capillary pipes are all along the slope, the water outlet is adjusted according to the terrain on the spot in the engineering, the water outlet is ensured to be uniform, the working pressure is set to be only 5-10 m of the water head, the water seeps 10cm above the infiltrating irrigation water and 20cm below the infiltrating irrigation water, the water seeps 10cm below the ground surface, and the whole system is covered with a soil layer and.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. Adapt to low pressure gravity filtration irrigation system in northwest arid area, including filter screen (1) and steady voltage water storage box (4), its characterized in that: a water conduit (2) is fixed on the upper water inlet on the left side of the pressure stabilizing water storage tank (4), the filter screen (1) is fixed on the water inlet port of the water conduit (2), an overhaul valve (3) is installed on the water conduit (2), a floating plate valve (5) is installed on the inner side of the water inlet of the pressure stabilizing water storage tank (4), a sand accumulation groove is formed right in the bottom of the water inlet of the pressure stabilizing water storage tank (4), the sand accumulation groove adopts a U-shaped groove, the bottommost part of the bottom of the sand accumulation groove is connected with a sand flushing port (10), a sand flushing valve (11) is arranged outside the sand flushing port (10), an overflow port (14) is formed in the inner wall of the pressure stabilizing water storage tank (4) and the upper part of the sand flushing port (10), an overflow pipe is installed on the overflow port (14), a three-way pipe (15) is connected between the lower part of the overflow pipe and a sand flushing pipeline externally, the water pipe is characterized in that the other end of the three-way pipe (15) is connected with a pipeline and directly extends to a river channel or a drainage channel, a water outlet (12) is formed in the lower portion of the right side of the pressure stabilizing water storage tank (4), a filter screen partition plate (13) is arranged between the water inlet and the water outlet (12) of the pressure stabilizing water storage tank (4), a main pipe (7) is connected onto the water outlet (12), a control valve (6) is installed on the main pipe (7) close to the pressure stabilizing water storage tank (4), the other end of the main pipe (7) is connected with a branch pipe (8), a capillary (9) with a douche is connected onto the branch pipe (8), and the water pipe (2), the maintenance valve (3), the control valve (6), the main pipe (7), the branch pipe (8), the capillary (9) and the.
2. The low pressure gravity filtration irrigation system adapted to northwest arid region of claim 1, wherein: the filter screen (1) adopts a tubular filter screen and is connected with the water conduit (2) by a flange.
3. The low pressure gravity filtration irrigation system adapted to northwest arid region of claim 1, wherein: the water inlet and the kickboard valve (5) threaded connection of steady voltage water storage box (4), the rubber water seal circle is installed to the water inlet inboard of steady voltage water storage box (4), steady voltage water storage box (4) pass through threaded connection and install the rubber water seal circle in the junction with sand washing mouth (10) and the overflow mouth (14) of side of its bottom, steady voltage water storage box (4) pass through threaded connection and install the rubber water seal circle in the junction with delivery port (12) of its right side lower part.
4. The low pressure gravity filtration irrigation system adapted to northwest arid region of claim 1, wherein: the sand flushing valve (11), the three-way pipe (15) and the pipeline are connected through fusion welding, the control valve (6) and the main pipe (7) are connected through fusion welding, the main pipe (7), the branch pipe (8) and the capillary pipe (9) are connected through fusion welding, and the capillary pipe (9) and the emitter are connected through a jack type quick installation mode.
5. The low pressure gravity filtration irrigation system adapted to northwest arid region of claim 1, wherein: the inner wall of the pressure stabilizing water storage tank (4) is provided with a notch for installing the filtering grid plate (13), and both sides of the notch are provided with buckles.
6. Use method of a low pressure gravity infiltration irrigation system adapted to northwest arid region based on any one of claims 1 to 5, characterized by comprising the following steps:
s1: directly taking water from a water source by utilizing the terrain, communicating a water conduit with a filter screen with the water source, and then connecting the water conduit with a pressure-stabilizing water storage tank;
s2: the joint of the water conduit and the pressure-stabilizing water storage tank is provided with an overhaul valve, a water inlet of the pressure-stabilizing water storage tank is provided with a floating plate valve for controlling the water level of the pressure-stabilizing water storage tank, a valve body of the floating plate valve is a ball valve and is connected with a floating plate by a connecting rod, and the floating plate adopts a metal hollow box body structure design and has the self weight of 2 kg;
s3: a sand accumulation groove is arranged right opposite to the bottom of the water inlet of the pressure stabilizing water storage tank, the sand accumulation groove adopts a U-shaped groove, the bottommost part of the bottom is connected with a sand washing port, a sand washing valve is arranged outside to control the opening and closing of the sand washing port, and a sand washing valve connecting pipeline directly extends to a river channel or a drainage channel;
s4: the overflow pipe is connected with the sand washing pipeline outside the sand washing valve;
s5: a filter screen partition plate is arranged between a water inlet and a water outlet of the pressure-stabilizing water storage tank, the pressure-stabilizing water storage tank is divided into two sides, one side of the water inlet accounts for two thirds, the height of the water outlet is 10cm away from the bottom of the pressure-stabilizing water storage tank, a control valve is arranged at the position of the water outlet connected with a main pipe, and a ball valve is adopted as a controller;
s6: the extension of the main pipe enables a water head to reach about 5m and then the branch pipe is connected, the arrangement directions of the branch pipe and the capillary pipe are all along the slope, the branch pipe and the capillary pipe are adjusted according to the terrain on the spot in the engineering, and the uniform water outlet is ensured.
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| CN202010885094.0A CN111919725A (en) | 2020-08-28 | 2020-08-28 | Low-pressure gravity infiltration irrigation system suitable for northwest arid region and use method thereof |
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| CN202010885094.0A CN111919725A (en) | 2020-08-28 | 2020-08-28 | Low-pressure gravity infiltration irrigation system suitable for northwest arid region and use method thereof |
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| CN115720842A (en) * | 2022-05-25 | 2023-03-03 | 山东省水利科学研究院 | Irrigation device integrating micro-sprinkling irrigation and infiltrating irrigation |
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Application publication date: 20201113 |