CN202663894U - Water-saving irrigation system for irrigation and water conservancy - Google Patents

Abstract

The utility model relates to an irrigation equipment and system, in particular to an irrigation system with good filtering effect, convenient control and timely irrigation, which is suitable for farmland water conservancy and water-saving irrigation in the Yellow River Basin. It includes a water intake device, a water treatment device and a micro-irrigation device connected in sequence; the water intake device includes a water pump (1) and a check valve (2); the water treatment device includes a primary treatment device for separating sand and gravel and a secondary filter device for removing organic impurities; the primary treatment device adopts a centrifugal sand separator (3), and its water inlet is connected to the water pump (1) through a check valve (2); the secondary filter device uses sand Stone filter (4), the water outlet of which is connected to the micro-irrigation device through the main water pipe (5); the water outlet of the sand-stone separator (3) and the water inlet of the sand-stone filter (4) are connected through the main irrigation valve provided . The beneficial effect is that the design is reasonable, the filtering process is fast and efficient, the operation is simple, the service life is long, and the cost is low.

Description

Water-saving irrigation system for farmland water conservancy

technical field

The utility model relates to irrigation equipment and a system, in particular to a water-saving irrigation system for farmland water conservancy.

Background technique

The World Water Research Institute proposes to use four levels to evaluate the amount of water resources per capita. The water per capita is less than 1000m ³ , which is the lowest level, indicating severe water shortage; ^{1000-5000m 3} is a low level, indicating water shortage ^; Resources are abundant. The annual per capita water resources in my country's northern region dominated by the Yellow River Basin is only 938m3, which has reached a serious water shortage level, and water conservation must be persisted for a long time. From a global perspective, agriculture is also the largest water user. The agricultural sector accounts for two-thirds of the world's total fresh water, and basically all of it is used for crop irrigation.

Irrigation water is transported, distributed, and flowed into the field through the irrigation system for the growth of crops. It generally goes through three processes: water delivery and distribution; field irrigation; crop water consumption. Water transmission and distribution are realized through channels at all levels. Generally, about 50% of the water is lost through channel leakage from the water source to the field water inlet. Field irrigation means that after irrigation water enters the field, part of it is lost through deep seepage, part of it is lost through soil evaporation, and part of the water may be discharged from the field. The process of crop water consumption is that crops absorb water from the soil layer for their growth and finally form crop yield and dry matter. The above-mentioned first and second processes directly affect the effective utilization rate of irrigation water. Water losses in the third process affect water productivity, ie crop yield per cubic meter of water. Saving or reducing the amount of irrigation water drawn from rivers, reservoirs or groundwater by adopting various engineering water-saving technical measures, agricultural water-saving technical measures and management water-saving measures is called water-saving irrigation.

At present, most of the channels in my country's irrigation areas are soil channels, and the leakage loss in the process of water delivery is very serious. It is used to irrigate rice; the area of surface irrigation is large, and the amount of water wasted is also large. Improving and improving the method of surface irrigation must also be changed in water-saving irrigation. The existing water-saving irrigation system adopts the method of first setting up a pool for sedimentation of water sources with large sediment, and then filtering it again before using it. However, this implementation will not only delay the time, but also filter The sediment is further filtered, and organic impurities must be removed. The filtering effect is not good, which often leads to failure of the irrigation system during use and affects the growth of crops; especially for the application of the Yellow River farmland water conservancy, the defects and drawbacks of the system more obvious.

Contents of the invention

The purpose of the utility model is to provide a water-saving irrigation system with good filtering effect, convenient control and timely irrigation, which is suitable for farmland water conservancy in the Yellow River Basin.

The utility model of farmland water conservancy and water-saving irrigation system is characterized in that it includes a water intake device, a water treatment device and a micro-irrigation device connected in sequence; the water intake device includes a water pump 1 and a check valve 2; the water treatment device includes A primary treatment device for separating sand and a secondary filter device for removing organic impurities; the primary treatment device uses a centrifugal sand separator 3, and its water inlet is connected to the water pump 1 through a check valve 2; the secondary filter The device adopts a gravel filter 4, the water outlet of which is connected to the micro-irrigation device through the main water pipe 5; the water outlet of the sand separator 3 and the water inlet of the sand filter 4 are connected through a set irrigation master valve.

Further, the irrigation system also includes a fertilization device and a flow meter 6 connected to the main water pipe 5; the fertilization device includes a fertilizer storage tank 7, a water inlet pipe 8, a fertilizer outlet pipe 9 and a pressure regulating switch 10; the pressure regulating switch 10 is arranged on On the main water pipe 5, the water inlet pipe 8 is arranged on the water inlet side of the pressure regulating switch 10 and communicates with the bottom of the fertilizer storage tank 7, and the fertilizer outlet pipe 9 is arranged on the water outlet side of the pressure regulating switch 10 and connected to one side of the fertilizer storage tank 7 connected.

Further, the sand filter 4 is composed of at least two filter tanks 401 connected in parallel; the upper part of the filter tank 401 feeds water, and the lower part outputs water, and a sand bed filter element formed by homogeneous quartz sand of equal particle size is arranged inside.

Further, the micro-irrigation device includes a seepage irrigation device, a dropper device and a sprinkler irrigation device respectively connected to the main water pipe 5 through branch water pipes 11; the water inlet ends of the branch water pipes 11 are respectively provided with solenoid valves 12, and the ends are provided with water Pressure gauge 13.

Furthermore, the described seepage irrigation device includes a water seepage pipe 14 arranged on the branch water pipe 11; the dripper device includes a drip pipe 16 evenly provided with drippers 15, and the drip pipe 16 is connected to the branch water pipe 11; the sprinkler irrigation device includes a connection A capillary pipe 18 of a shower head 17 is also provided on the branch water pipe 11 .

Still further, the seepage pipe 14 , the drip pipe 16 and the capillary pipe 18 are connected to the branch water pipe 11 separately, or at least two kinds of combinations are connected to the branch water pipe 11 .

The utility model farmland water conservancy and water-saving irrigation system realizes the primary separation of sand and gravel through the primary treatment device, and then further filters the sediment through the secondary filter device to remove organic impurities. The two-stage filtration treatment of soil and gravel ensures The uniform irrigation and service life of the micro-irrigation device are very suitable for the characteristics of large sediment and high content of organic impurities in the Yellow River Basin; at the same time, the use of fertilization devices can directly ensure the application of chemical fertilizers and pesticides while irrigating; in addition, various types of micro-irrigation devices can quickly It is well adapted to different environments and meets different needs; its beneficial effects are reasonable design, ingenious structure, fast and efficient filtration, simple operation, long service life and low cost, especially suitable for farmland water conservancy projects in the Yellow River Basin.

Description of drawings

Accompanying drawing is the structural representation described in the utility model example

In the figure: water pump 1, check valve 2, sand separator 3, sand filter 4, main water pipe 5, flow meter 6, fertilizer storage tank 7, water inlet pipe 8, fertilizer outlet pipe 9, pressure regulating switch 10, Branch water pipe 11, solenoid valve 12, water pressure gauge 13, water seepage pipe 14, dripper 15, dripper 16, nozzle 17, capillary pipe 18, water source 19, filter tank 401

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and preferred embodiments.

The utility model farmland water conservancy and water-saving irrigation system, as shown in the accompanying drawings, includes a water intake device, a water treatment device and a micro-irrigation device connected in sequence; wherein the water intake device is composed of a water pump 1 and a check valve 2; the water treatment device includes The primary treatment device for separating sand and gravel and the secondary filter device for removing organic impurities; the primary treatment device adopts a centrifugal sand and gravel separator 3, and its water inlet is connected to the water pump 1, and a check valve 2 is arranged between; The secondary filtering device adopts a gravel filter 4, the water outlet of which is connected to the micro-irrigation device through the main water pipe 5; the water outlet of the sand separator 3 is connected with the water inlet of the sand filter 4, and a main irrigation valve is arranged between them .

Wherein, the irrigation system also includes a fertilization device and a flow meter 6 connected on the main water pipe 5; The switch 10 is composed of; the water inlet side and the water outlet side of the pressure regulating switch 10 are respectively provided with a water inlet pipe 8 and a fertilizer outlet pipe 9;

Wherein, the gravel filter 4 is made up of at least two filter tanks 401 connected in parallel; the inside of the filter tank 401 is provided with a sand bed filter core formed by homogeneous quartz sand of equal particle size, and the upper water is filtered by the sand bed filter core. Lower discharge. In this preferred example, two filter tanks 401 are connected in parallel as an example, as shown in the accompanying drawing.

Wherein, the micro-irrigation device includes a seepage irrigation device, a dropper device and a sprinkler irrigation device respectively connected to the main water pipe 5 through branch water pipes 11; the water inlet ends of the branch water pipes 11 are respectively provided with solenoid valves 12, and the ends are provided with water pressure gauges 13 .

Wherein, the seepage irrigation device includes a seepage pipe 14; the dripper device includes a drip pipe 16 that is evenly provided with a drip head 15; the sprinkler irrigation device includes a capillary pipe 18 provided with a nozzle 17; connected to the branch water pipe 11, or a combination of at least two kinds is connected to the branch water pipe 11. In this preferred example, three branch water pipes 11 are provided as an example, and each branch water pipe is separately connected to the seepage pipe 14, the drip pipe 16 and the capillary pipe 18 for irrigation.

When the irrigation system described in this embodiment is in use, first put the water inlet of the water pump 1 into the water source 19, then start the water pump 11 to send the water in the water source 19 to the centrifugal sand and gravel separator through the check valve 2 In the device 3, after the separation of soil, sand, and sundries, the water outlet enters the sand filter 4 through the main irrigation valve, and the sand bed filter element is formed on the homogeneous and equal-sized quartz sand to filter and remove organic impurities. After mixing with the remaining sediment, the main water pipe 5 enters the irrigation device, and the water flow control of different branch water pipes 11 is realized by controlling the solenoid valve 12, and the total flow is detected and controlled by the flow meter 6 on the main water pipe 5. The water pressure gauge 13 at the end of the branch water pipe 11 detects the water pressure at the end to ensure that there is sufficient water in the seepage pipe 14, the drip pipe 16 and the capillary water pipe 18 in the irrigation device; at the same time, the fertilization device is used to add pesticides and chemical fertilizers to the irrigation water, To improve the drug effect, the water in the main water pipe 5 is controlled by the pressure regulating switch 10, and a pressure difference is formed between the water inlet end and the water outlet end, and the water is fed by the water inlet pipe 8 and fertilized by the fertilizer outlet pipe 9, which is simple to operate and easy to use. High-level purification, greatly improving the service life and working stability, especially suitable for the Yellow River farmland water conservancy irrigation project.

Claims (6)

1. Farmland water conservancy water-saving irrigation system, is characterized in that, comprises the water intake device, water treatment device and micro-irrigation device that are connected successively; Described water intake device comprises water pump (1) and check valve (2); Described water The treatment device includes a primary treatment device for separating sand and a secondary filter device for removing organic impurities; the primary treatment device uses a centrifugal sand separator (3), and its water inlet passes through a check valve (2) and The water pump (1) is connected; the secondary filter device adopts a sand filter (4), and its water outlet is connected to the micro-irrigation device through the main water pipe (5); the water outlet of the sand separator (3) and the sand filter (4 ) water inlets are connected through the set irrigation master valve. 2. The farmland water conservancy and water-saving irrigation system as claimed in claim 1, characterized in that, said irrigation system also comprises a fertilization device and a flow meter (6) connected on the main water pipe (5); the fertilization device comprises a fertilizer storage tank (7), water inlet pipe (8), fertilizer outlet pipe (9) and pressure regulating switch (10); pressure regulating switch (10) is arranged on the main water pipe (5), and water inlet pipe (8) is arranged on pressure regulating switch ( The water inlet side of 10) communicates with the bottom of the fertilizer storage tank (7), and the fertilizer outlet pipe (9) is arranged on the water outlet side of the pressure regulating switch (10) and communicates with one side of the fertilizer storage tank (7). 3. The farmland water conservancy and water-saving irrigation system as claimed in claim 1 or 2, characterized in that, the sand filter (4) is made up of at least two filter tanks (401) connected in parallel; the filter tank (401 ) The water enters the upper part and the water comes out from the lower part, and a sand bed filter element formed by homogeneous quartz sand of equal particle size is installed inside. 4. The farmland water conservancy and water-saving irrigation system as claimed in claim 1 or 2, characterized in that, the micro-irrigation device comprises a seepage irrigation device, a drip irrigation device connected to the main water pipe (5) through branch water pipes (11) respectively. pipe device and sprinkler irrigation device; the water inlet ends of the branch water pipes (11) are respectively provided with electromagnetic valves (12), and the ends are provided with water pressure gauges (13). 5. The farmland water conservancy and water-saving irrigation system as claimed in claim 1 or 2, wherein the seepage irrigation device includes a water seepage pipe (14) arranged on the branch water pipe (11); There is a drip pipe (16) with a drip head (15), and the drip pipe (16) is connected on the branch water pipe (11); the sprinkling irrigation device includes a capillary water pipe (18) connected on the branch water pipe (11) and provided with a nozzle (17). ). 6. The water-saving irrigation system for farmland water conservancy as claimed in claim 5, characterized in that, the seepage pipe (14), the drip pipe (16) and the capillary pipe (18) are separately connected to the branch water pipe (11) , or at least two kinds of combinations are connected on the branch water pipe (11).

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