CN111350233A - Northern area field greenhouse area rainfall flood resource utilization device and construction method - Google Patents

Abstract

The invention discloses a rainfall flood resource utilization device and a construction method for a field greenhouse area in a northern area, which solve the problem of large surface runoff in the northern area in the prior art, have the beneficial effects of realizing rainwater collection, storage and utilization and effectively saving water, and have the following specific schemes: a rainfall flood resource utilization device for a field greenhouse area in the northern area comprises a rainwater collection unit, a rainwater collection unit and a rainwater collection unit, wherein the rainwater collection unit is arranged on the side portion of the bottom end of the field greenhouse, the top of the rainwater collection unit is lower than the surface around the greenhouse, the rainwater collection unit is arranged along the length direction of the greenhouse to collect surface runoff generated by rainfall around the greenhouse and rainwater falling from the greenhouse, the rainwater collection unit comprises a plurality of longitudinally arranged water collection grooves, the adjacent water collection grooves are communicated, and the size of the top of the rainwater collection unit is larger than that of; the purification unit comprises a plurality of filter layers, and the top of each water collecting tank is provided with the filter layer; the bottommost water collecting tank is communicated with the water storage unit; the utilization unit is communicated with the water storage unit to supply water to the field greenhouse.

Description

A rainwater resource utilization device and construction method in field greenhouses in northern regions

Background technique

Due to the cold winter in the north, it is not easy to grow vegetable crops, so greenhouses have been developed to plant off-season vegetables and increase farmers' own income. At present, the northern region has developed into contiguous and large-scale greenhouses. The northern greenhouses are generally planted in spring, autumn and winter. In order to save the investment of repeated construction and carry out the prevention and control of pests and diseases, the plastic film of the greenhouse is generally not removed in summer (flood season). , using the high temperature in the greenhouse in summer to kill bacteria and pests in the soil (commonly known as "stuffy shed"), which results in a significant increase in surface runoff during the flood season in contiguous greenhouses, increased flood control pressure, and insufficient use of rainwater. The confluence of rainwater leads to less groundwater replenishment in this area, and the groundwater level gradually decreases, resulting in serious water shortage.

The inventor found that after the rainfall fell on the ground, part of the soil infiltrated into the soil, and part of it formed surface runoff and flowed out of the runoff area. In general, the natural rainfall runoff coefficient of the watershed is 0.15-0.3, but when a large number of vegetable greenhouses or melons are built in some places. In the case of sheds, etc., the surface area of the shed and the confluence area of the surrounding surface exceeds 1000m ² , and the confluence area is large. The surface runoff generated by the rainfall at this time is much larger than that of the natural soil fields. In this case, on the one hand, a large amount of rainfall during the rainfall period causes surface runoff to flow away or cause flood disasters. On the other hand, these areas are short of water resources and the groundwater level is low. For example, in Weifang, Shandong, there are a large number of vegetable greenhouses and melon and fruit greenhouses in the field. Most of the greenhouses have a rainwater collection area of more than 1000m ² . When the rainfall is large, it is easy to cause confluence, resulting in large surface runoff.

SUMMARY OF THE INVENTION

In view of the deficiencies in the prior art, the first object of the present invention is to provide a rainwater resource utilization device in the field greenhouse area in the northern region, which can effectively collect space and rainwater that slips from the outer surface of the field greenhouse, has a high utilization rate of rainwater, and can pass The setting of the filter layer effectively filters the rainwater, realizes the layer-by-layer filtration, collection and utilization of rainwater, and plays the role of supplementing the groundwater.

The second purpose of the present invention is to provide a construction method of a rainwater resource utilization device in a field greenhouse in the northern region, so as to reduce the degree of flood disaster, make full use of rainwater resources, and improve the utilization efficiency of water resources.

In order to achieve the above object, the present invention is realized by the following technical solutions:

In the first aspect, the present invention provides a rainwater resource utilization device in a field greenhouse in the northern region, comprising:

The rainwater collection unit is located on the side of the bottom end of the field greenhouse, and the longitudinal whole is arranged to extend downward from the ground level. Surface runoff and rainwater falling from the greenhouse, the rainwater catchment system includes a number of longitudinally arranged catchments, and the adjacent catchments are connected, and the top dimension of the rainwater catchment unit is larger than the bottom dimension;

The purification unit includes a plurality of filter layers, and the top of each water collection tank is arranged with a filter layer, or the top of the top water collection tank, the bottom and the top of the middle water collection tank are respectively arranged with filter layers;

Water storage unit, the bottom water collecting tank is connected with the water storage unit;

The utilization unit is communicated with the water storage unit to supply water to the field greenhouse.

The above-mentioned rainwater resource utilization device in the field greenhouse area in the northern region can realize the collection, layer-by-layer purification and water storage of rainwater outside the field greenhouse. The reduction of surface runoff provides a convenient and feasible way of rainwater utilization and water saving for northern field greenhouses.

In order to discharge the unstorable or unutilized rainwater into the field drainage ditches and replenish groundwater, the rainwater resource utilization device in the field greenhouse area as described above also includes a drainage unit. It communicates with the drainage unit, and the drainage unit is connected with the drainage ditch.

In the rainwater resource utilization device in the field greenhouse area as described above, in order to filter out impurities and purify rainwater to achieve the standard of being irrigated and utilized, the purification unit includes at least three layers of the filter layer, the filter layer and the filter layer where the filter layer is located. The size of the water collection tank is adapted, the first filter layer on the top layer is a permeable plate, which blocks large floating objects and impurities, and also avoids the blockage of the second filter layer. The second filter layer in the middle is a multi-layer staggered stack arrangement The screen mesh has a pore size of 0.71-0.9mm, which is used to filter floating objects and some sediment impurities. The third filter layer at the bottom is coarse sand, which is used to filter and purify most of the sediment impurities.

As mentioned above, in the rainwater resource utilization device in the field greenhouse, in order to meet the irrigation needs, the particle size of the coarse sand is 0.3-0.7mm, and the upper and lower sides of the coarse sand are provided with a permeable layer, the permeable layer is a screen mesh, and the permeable layer is The pore size of the sieve is smaller than the particle size of the coarse sand, and the particle size of the coarse sand is smaller than the sieve aperture of the second filter layer. The water permeable layer is used to fix the coarse sand of the third filter layer to prevent the coarse sand from falling due to the impact of water It can effectively avoid the failure of the third filter layer, and the cooperation of the coarse sand and the permeable layer can filter out the sediment impurities in the water coming from the second water collecting tank.

As mentioned above, in the rainwater resource utilization device in the field greenhouse, the rainwater collection unit includes at least three layers of the water collection tanks, in order to collect rainwater and facilitate the flow of rainwater, the first water collection tank in the top layer and the second water collection tank in the middle. The longitudinal section of the water collection tank is all trapezoid, and the longitudinal section of the third water collection tank on the bottom is rectangular. Rainwater is collected from both sides of the water collection unit. Excessive disturbance increases the purification capacity, and the sizes of the three water collecting tanks decrease in turn from high to low. Because the filter layer has a certain hindering effect on the water collecting process, the hindering capacity increases in turn, resulting in the collection of each layer at the same time. The water collection volume of the water tank decreases in turn, so the volume of the water collection tank of each layer can be reduced in turn to achieve a larger bearing rate, and at the same time, it helps to reduce the construction space and reduce the investment cost. The top of the first water collection tank is lower than the surrounding surface to ensure that the collection can be collected. The rainwater on the shed surface is collected, and the ground runoff generated by the rainfall between the shed and the surrounding surface is collected. When the amount of incoming water generated by the rainfall is greater than the filtering and purification capacity, the incoming water will be accumulated in the first water collection tank. In order to avoid the water overflowing the water collection tank When damage occurs, the first sump is communicated with the drain unit.

In the rainwater resource utilization device in the field greenhouse as described above, the drainage unit includes a drainage pipe buried in the ground, and the water storage unit and the water collecting tank on the top layer are respectively connected with the drainage pipe; the lower half of the drainage pipe is open There are several rows of seepage holes for draining rainwater into the ground, so that the drainage increases infiltration at the same time, thereby effectively increasing the infiltration rate of rainwater in the greenhouse and replenishing groundwater.

As mentioned above, in the rainwater resource utilization device in the field greenhouse area, in order to meet the needs of the field greenhouse irrigation, the utilization unit includes a sprinkler irrigation pipeline and a drip irrigation pipeline arranged in the field greenhouse, and the sprinkler irrigation pipeline is provided with a sprinkler irrigation port and a drip irrigation pipe. The road has a watering hole.

In the rainwater resource utilization device in the field greenhouse area as described above, the water storage unit includes a water storage tank, and the water storage tank is arranged under the open space between the adjacent greenhouses in the greenhouse area, which can avoid freezing cracks in winter and reduce the occupation of surface space and store water. The pool is set as a cuboid, which is easy to construct. The water outlet of the reservoir is connected with the sprinkler irrigation pipeline and drip irrigation pipeline. The reservoir is vacated during the flood season for rainwater storage, and the non-flood season reservoir can be used for daily watering for artificial storage. For water, an overflow port is set at the top of the side of the reservoir, and there is a water inlet under the overflow port on the side of the reservoir. The diameter of the overflow port should be greater than or equal to the diameter of the water inlet, so as to avoid excessive water flow and damage to the water storage. pool structure.

As mentioned above, the rainwater resource utilization device in the field greenhouse area, the utilization unit includes a water pump, which is used to spray water to the sprinkler irrigation pipeline and the drip irrigation pipeline, and the device also includes a solar power generation and storage installed on the top of the field greenhouse or the field greenhouse management room. The solar power generation and storage unit is connected to the water pump of the utilization unit. The solar power generation and storage unit includes a solar panel, a storage battery and a solar controller. When electricity is used outside, the storage battery supplies power through the inverter.

In the second aspect, the present invention also provides a construction method of a rainwater resource utilization device in a field greenhouse in the northern region, comprising the following contents:

Rainwater enters the rainwater collection unit through the filter layer, and the filter layer filters and purifies the rainwater during the flow of rainwater;

The filtered rainwater enters the water storage unit;

The water storage unit supplies water to the field greenhouse through the utilization unit.

The above-mentioned beneficial effects of the present invention are as follows:

1) Through the installation of the rainwater resource utilization device in the field greenhouse in the northern region, the rainwater resources in the field greenhouse and outside can be effectively collected, purified, filtered and stored, which can reduce the impact of the construction of the greenhouse on the relationship between the rainwater and the runoff of the underlying surface. Form low-impact development of rural greenhouse planting areas.

2) Through the use of rain and flood resource utilization devices in greenhouses, on the one hand, the regional surface runoff is reduced and the degree of flood disaster is reduced, and on the other hand, the rain and flood resources are fully utilized to improve the efficiency of water resources utilization in the north.

3) The rainwater collection unit is set below the surface of the bottom side of the field greenhouse, and the top is slightly lower than the surrounding surface, and it is arranged along the length of the greenhouse to collect the rainwater on the surface of the greenhouse and the surface runoff generated by the rainfall around the greenhouse, covering a large area. , the rainwater collection rate is higher, and at the same time does not hinder the daily planting production.

4) Through the setting of multi-level water collection tanks and filter layers, the rainwater is filtered and purified through each filter layer, and the purification strength is high, which finally meets the irrigation requirements. The generated waste flow is discharged through the drainage unit, and part of the waste flow is supplemented by the seepage hole of the drainage unit during the discharge process; and the volume of the collection tank is gradually reduced, so that each collection tank can achieve a better bearing rate, and at the same time help In order to reduce the construction space and save the construction cost.

5) The purpose of water storage and water storage is achieved through the setting of the water storage unit, which can be used as a daily water storage tank during non-flood seasons to meet irrigation and other living needs. It can prevent freezing cracks in winter and reduce the occupation of surface space, reducing construction costs.

6) Through the setting of seepage holes in the drainage unit, when the excess rainwater is discharged, the infiltration is carried out to supplement the groundwater, thereby effectively increasing the infiltration rate of the greenhouse area.

7) Through the installation of solar power generation and storage units, it can be applied to the daily work and life of the greenhouse, expands the applicable surface of the whole device, improves the use efficiency, not only saves water, but also facilitates the living and planting needs of the greenhouse. .

Description of drawings

The accompanying drawings forming a part of the present invention are used to provide further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, and do not constitute an improper limitation of the present invention.

FIG. 1 is a three-dimensional schematic diagram of a rainwater resource utilization device in a field greenhouse area in the northern region according to one or more embodiments of the present invention.

2 is a schematic longitudinal cross-sectional view of a rainwater collection unit and a purification unit according to one or more embodiments of the present invention.

3 is a schematic longitudinal cross-sectional view of a water storage unit according to one or more embodiments of the present invention.

FIG. 4 is a schematic diagram of a utilization unit according to one or more embodiments of the present invention.

5 is a schematic diagram of the lower half of the cement pipe according to one or more embodiments of the present invention.

FIG. 6 is a schematic structural diagram of a solar power generation and storage unit according to one or more embodiments of the present invention.

In the figure: the distance or size between each other is exaggerated to show the position of each part, the schematic diagram is only for illustration

Among them: 01. Field greenhouse; 02. Management room;

1. Rainwater collection unit; 101. First water collection tank; 102. Second water collection tank; 103. Third water collection tank; 104. Drainage outlet; 105. Water outlet;

2. Purification unit; 201. First filter layer; 202. Second filter layer; 203. Third filter layer; 204. Water permeable layer;

3. Water storage unit; 301. Reservoir; 302. Water inlet; 303. Overflow outlet; 304. Water outlet;

4. Utilization unit; 401. Water inlet pipe; 402. Water pump; 403. Water delivery pipe;

5. Drainage unit; 501. Cement pipe; 502. Seepage hole;

6. Solar power generation and storage unit; 601. Solar panel; 602. Controller; 603. Battery; 604. Inverter;

71. The first connecting pipe; 72. The second connecting pipe; 73. The third connecting pipe; 74. The fourth connecting pipe.

Detailed ways

It should be noted that the following detailed description is exemplary and intended to provide further explanation of the invention. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the invention clearly dictates otherwise, the singular is intended to include the plural as well, and it is also to be understood that when the terms "comprising" and/or "including" are used in this specification, Indicate the presence of features, steps, operations, devices, components and/or combinations thereof;

For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, it only means that the directions of up, down, left and right are consistent with the drawings themselves, and do not limit the structure. It is for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.

Terminology explanation part: the terms "installation", "connection", "connection", "fixation" and other terms in the present invention should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated; It can be a mechanical connection, it can also be an electrical connection, it can be a direct connection, it can also be indirectly connected through an intermediate medium, it can be an internal connection between two elements, or an interaction relationship between two elements, for those of ordinary skill in the art. , the specific meanings of the above terms in the present invention can be understood according to specific situations.

As described in the background art, there is a large surface runoff problem in the field greenhouses in the northern area in the prior art. In order to solve the above problems, the present invention proposes a rainwater resource utilization device in the field greenhouses in the northern area.

In a typical embodiment of the present invention, referring to FIG. 1 , a rainwater resource utilization device in field greenhouses in the northern region includes a rainwater collection unit 1, a purification unit 2 and a water storage unit 3. In some other examples It also includes a drainage unit 5 and a solar power generation and storage unit 6, so that the rainwater is collected into the rainwater collection unit 1 in the field greenhouse, and then purified by the purification unit 2. The purification unit 2 includes several layers of filter layers. A filter layer is arranged at the top, or a filter layer is arranged on the top, bottom and the top of the middle water collection tank, respectively. The filtered and purified rainwater enters the storage tank 3 for standby, while the excess rainwater enters the drainage unit 5 for discharge, and the utilization unit 4. Use the water pump to extract the rainwater stored in the water storage unit 3, and use the stored electricity of the solar power generation and storage unit 6 to carry out drip irrigation and sprinkler irrigation for greenhouse vegetable planting, so as to achieve the purpose of making full use of rainwater resources.

The field greenhouse 01 is a single-sided arc or arch, and the rainwater resource utilization device in this implementation can be applied. Specifically, in this embodiment, the rainwater collection unit 1 is arranged on the side of the bottom end of the greenhouse, along the field The length of the greenhouse 01 is set to completely collect the rainwater on the greenhouse surface, with a set depth and width, and the top of the rainwater collection unit 1 is slightly lower than the surrounding surface (0.1-3mm lower than the surrounding surface) to ensure that the shed surface can be collected. Rainwater, while collecting the ground runoff generated by rainfall on the surface around the greenhouse, more rainwater is collected and the rainwater is fully utilized. In some examples, the length of the rainwater collection unit 1 is greater than or equal to the length of the field greenhouse 01; the rainwater collection unit 1 The upper part is wide and the lower part is narrow, and the slope of rainwater collection unit 1 is 70°, which is constructed with masonry and cement.

The rainwater collection unit 1 includes at least three layers of water collection tanks. Specifically, as shown in FIG. 2 , the rainwater collection unit 1 includes a first water collection tank 101 , a second water collection tank 102 and a third water collection tank arranged in order from high to low. 103. The function of the water collection tank is to collect the rainwater of the plastic greenhouse from the drainage surface to the bottom of the greenhouse to concentrate and collect the ground runoff on the surface around the greenhouse. become smaller, which is conducive to the installation of the second filter layer 202 and the third filter layer 203, the first water collection tank 101 is connected with the second water collection tank 102, and the second water collection tank 102 is connected with the third water collection tank 103, wherein the first collection tank 102 is connected with the third water collection tank 103. The longitudinal sections of the water tank 101 and the second water collection tank 102 are both trapezoidal, and the longitudinal section of the third water collection tank 103 is rectangular. Similarly, the purification unit 2 also includes a plurality of purification units, which are respectively arranged above each water collection tank. For filtering and purifying rainwater.

Moreover, the first water collecting tank 101 is communicated with the drainage unit 5 of the drainage unit 5 through the drainage port 104 and the second connecting pipe 72. The reason for this setting is as follows: because the rainwater resources collected at the initial stage have many impurities and may contain some pollution The substances are drained through the drainage unit 5. At the same time, when the amount of incoming water generated by the rainfall is greater than the filtering and purifying capacity, the incoming water will be accumulated in the first water collecting tank 101, in order to prevent the incoming water from overflowing the first water collecting tank 101 and causing damage , there is a drain port at the end of the first water collecting tank 101, so that the accumulated incoming water enters the drainage unit 5 through the second connecting pipe 72 and is discharged; the rainwater resources purified by the purification unit 2 have a high utilization rate, and the third water collecting tank 103 is communicated with the water inlet 302 of the water storage tank 301 of the water storage unit 3 through the water outlet 105 through the first connecting pipe 71 .

Specifically, in some examples, the heights of the first water collection tank 101, the second water collection tank 102, and the third water collection tank 103 are respectively 20 cm, 10 cm, and 10 cm. The width of the upper top of the water tank 101 is the width of the first filter layer 201 (and the inner side of the top of the first water collection tank supports the first filter layer 201 by setting steps); and the diameter of the drain outlet of the first water collection tank is the height of the first water collection tank 101 , the diameter of the water outlet of the third water collecting tank 103 is the width of the third water collecting tank 103 .

Referring to Figure 2, since there are a large number of fallen leaves, dry weeds and straws in the field greenhouse planting area, the rainwater will be collected to the rainwater collection unit 1 when it rains. The first filter layer 201 at the top of the water tank 101, the second filter layer 202 arranged at the bottom end of the first water collection tank, and the third filter layer 203 arranged at the bottom end of the second water collection tank. Specifically, the first filter layer 201 has water-permeable holes. The large aperture permeable cement board can avoid blocking the second filter layer. In order to further filter the rainwater, the second filter layer 202 is a three-layer staggered and superimposed screen. The setting of the filter layer can filter all the floating objects and some sediment impurities to the water coming from the first water collection tank, the pore size of the second filter layer is smaller than that of the permeable pores of the first filter layer, and the third filter layer 203 is 2cm thick. Sand, the particle size of the coarse sand is preferably 0.5mm, and the upper and lower parts are covered and carried by the permeable layer 204 of the 40-mesh screen respectively. , effectively avoid the failure of the third filter layer, the third filter layer can filter and purify most of the sediment impurities in the water coming from the second water collection tank, reaching the standard of irrigating and utilization. The selection of materials for each layer here is an option, and the selection of other conventional vertically replaceable filter materials is also within the protection scope of the present invention.

Wherein, the apertures of the two permeable layers on the upper and lower sides of the coarse sand are the same, or the aperture of the lower permeable layer is smaller than the aperture of the upper permeable layer, and in some examples, the apertures of the two permeable layers are both 0.38 mm, and the pore size of the two permeable layers is 0.38 mm. The sieve aperture is smaller than the particle size of the coarse sand, and the particle size of the coarse sand is smaller than the sieve aperture of the second filter layer.

In addition, in order to avoid the instability caused by rainwater scouring the second filter layer and the third filter layer, the bottom end sidewalls of the first water collecting tank and the second water collecting tank are respectively provided with a clamping plate. When the filter layer is not installed, the clamping plate is In the vertical state, after the second filter layer and the third filter layer are installed, bending the card board plays a preliminary role in stabilizing the second filter layer and the third filter layer.

In addition, in some embodiments, the height of one side of the first water collecting tank 101 in the rainwater collecting unit 1 close to the field greenhouse 01 is higher than the height of the other side, so that the first filter layer 201 is inclined and arranged to facilitate collection from the field greenhouse 01 The rainwater that slides down has higher rainwater collection efficiency; or, in other embodiments, the longitudinal section of the first water collecting tank is a trapezoid with a wide upper and a narrow lower, but the first filter layer is V-shaped, which is used to collect the field greenhouses on both sides. The falling rainwater and the surface runoff generated by the rainfall meet the needs of the greenhouse area.

Referring to FIG. 3 , the reservoir 301 in the water storage unit 3 is set as an underground cuboid cement pool, and the purpose of the setting is to facilitate natural water storage and save surface space, and at the same time, the rainwater that cannot be stored or used can be passed through the drainage unit 5. Drainage into the field drainage ditches, the field drainage ditches are of the concealed type, the reservoir 301 is set as an underground reservoir, the reservoir is connected with the drainage unit 5 cement pipe 501, and is arranged in the underground of the interval area of the field greenhouse 01 (away from the field greenhouse). 01 underground), in order to store rainwater conveniently, the reservoir 301 is set below the rainwater collection unit 1, and the reservoir 301 is constructed along the long side of the field greenhouse 01. The integral pool wall and cover plate of the reservoir 301 adopt the integral pouring concrete structure with anti-seepage treatment. The top of the side of the reservoir 301 is provided with an overflow port 303 and a water inlet, and the overflow port is arranged above the water inlet. The amount of water is discharged from the overflow port through the third connecting pipe, and enters the drainage ditch through the drainage unit; the top surface of the reservoir 301 is provided with a water pump, which is connected to the utilization unit 4 through the fourth connecting pipe, and the top of the side of the reservoir 301 overflows The port 303 communicates with the cement pipe 501 through the third connecting pipe 73 , and the water pumping port 304 at the top of the reservoir communicates with the water inlet pipe 401 of the utilization unit 4 through the fourth connecting pipe 74 . It should be noted that the optimal structural form for the reservoir here is an integrally poured concrete structure, and other structural forms of cover plates and pool walls, such as plastic materials, are also within the protection scope of the present invention.

In practical application, the reservoir 301 is constructed along the long side of the greenhouse, and the width and depth are determined by the interval width of adjacent greenhouses and the specific conditions.

There are two types of water for greenhouse vegetables, one is drip irrigation under mulch film and ditch watering without mulch film, and the other is aerial sprinkler watering, so in this embodiment, the unit 4 is used to set up two kinds, refer to Figure 4. It is shown that the water pump 402 in the utilization unit 4 is connected with the water inlet pipe 401 and the water delivery pipe 403 respectively. The water pump 402 is set to be movable and does not need to be fixed. Valve 406, the drip irrigation pipeline is laid on the ground of the field greenhouse, and a plurality of watering ports 404 are opened, the water delivery pipe 403 is connected with the sprinkler irrigation pipeline, the sprinkler irrigation pipeline is laid on the top of the field greenhouse, and the sprinkler irrigation pipeline is provided with a second valve 406, and the sprinkler irrigation pipeline is provided with a plurality of sprinkler irrigation ports 405; it is easy to understand that the drip irrigation pipeline and the sprinkler irrigation pipeline are arranged along the number of planting rows of plants in the field greenhouse.

It can be understood that the diameters of the water inlet pipe 401 and the water delivery pipe 403 are determined to suit the water pump 402 .

In some examples, the first connecting pipe 71 , the second connecting pipe 72 , and the third connecting pipe 73 are made of PVC and are arranged below the ground, and the fourth connecting pipe 74 , the water inlet pipe 401 , and the water delivery pipe 403 are made of removable plastic soft Tube, set on the surface. The diameters of the first connecting pipe 71, the second connecting pipe 72, the third connecting pipe 73 and the fourth connecting pipe 74 are respectively 20cm, 10cm, 15cm and 8cm, and the diameters of the water inlet pipe 401 and the water delivery pipe 403 are respectively 8cm and 8cm. It is the most convenient way to use PVC material here, and other materials, such as rubber or cement construction, are also within the protection scope of the present invention.

Referring to FIG. 5 , the drainage unit 5 includes a drainage pipe, the drainage pipe is a cement pipe, and the drainage pipe is connected with the drainage ditch. The cement pipe 501 is set as a concrete cement pipe with a diameter of 40 cm, and three rows of seepage water with a diameter of 3-5 cm are arranged on the bottom side. Hole 502, the specific diameter depends on the strength of the actual cement pipe, three rows of seepage holes 502 are staggered, the cement pipe 501 is buried in the ground, and the rainwater is infiltrated at the same time, thereby effectively increasing the rainwater infiltration rate in the greenhouse area. At the same time, in some examples, in order to facilitate the arrangement and pipeline connection, the second connecting pipe 72 and the third connecting pipe 73 are both L-shaped. In order to avoid interference with the reservoir, the cement pipe 501 runs along the field greenhouse 01 The width direction of the pipeline is arranged, and the settings of other pipelines are not limited, as long as the connection is realized.

Referring to FIG. 6 , the solar power generation and storage unit 6 includes a solar panel 601 , a controller 602 (a controller that comes with the solar panel), a battery 603 , and an inverter 604 , which are connected in sequence at the same time, and the solar panel 601 generates Electric energy, the controller 602 stores the electric energy in the battery 603, and supplies power to the water pump 402 and the electrical components in the management room 02 through the inverter 604, which can meet the daily work and life of the field greenhouse. Here, the controller 602 and the solar panel 601 It is installed obliquely on the roof of the field greenhouse management room 02, and its size is not larger than the roof area of the greenhouse management room. The inverter 604 is installed in the management room 02; it is easy to understand that the existing power supply energy is also equipped inside the field greenhouse for emergency needs. .

In addition, in order to expand the function of the rainwater resource utilization device in the field greenhouse area, and to meet the current needs of cultivation in the field greenhouse 01, that is, planting plants in high places and raising poultry in low places, the water outlet 304 of the reservoir 3 is connected to the Nozzle, a plurality of nozzles are arranged vertically or obliquely in the field greenhouse 01, and the nozzle is provided with an on-off valve, and there are multiple water outlets in the circumferential direction of the nozzle to meet the needs, and the multiple water outlets are arranged in a spiral form on the nozzle. At the bottom of the pipe, the water outlet of the nozzle is detachably provided with a water receiving tray for poultry drinking, and the water receiving tray is connected with the nozzle through a raised groove. The detachable connection is provided, and the protrusion is provided with a water outlet.

In order to facilitate operation, all valves can be set as solenoid valves, and all solenoid valves are connected with control units such as PLC controllers to realize automatic control, reduce manual operation, and be more convenient.

The present invention provides another embodiment, a construction method of a rainwater resource utilization device in a northern field plastic greenhouse, comprising the following steps:

Step 1: Rainwater in the confluence area of the field greenhouse enters the first water collecting tank through the first filter layer to complete the first filtration. When the amount of incoming water is greater than the filtration rate of the second filter layer, the water is discharged into the cement through the first connecting pipe from the drain Tube;

Step 2: the water in the first water collecting tank is filtered through the second filter layer and enters the second water collecting tank;

Step 3: The water entering the second water collecting tank is filtered and purified into the third water collecting tank, and then enters the water storage tank through the water outlet through the second connecting pipe. It is discharged into the cement pipe through the third connecting pipe;

Step 4: The rainwater stored in the water tank is supplied to the water pump from the water pump through the fourth connecting pipe. The water pump uses the battery of the solar power generation and storage unit to supply power to draw and store water, and drip irrigation or sprinkler irrigation is carried out through the drip irrigation pipeline and the sprinkler irrigation pipeline. Sprinkler irrigation, by supplying water to crops in the greenhouse, meets the water demand of plants, and it is also compared to storing rainwater and entering the ground through multiple watering or sprinkling irrigation.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. a rainwater resource utilization device in the field greenhouse area of the northern region, is characterized in that, comprises: The rainwater collection unit is located on the side of the bottom end of the field greenhouse, the top is lower than the surface around the greenhouse, and is arranged along the length of the greenhouse to collect the surface runoff generated by the rainfall around the greenhouse and the rainwater falling from the greenhouse. The rainwater collection unit includes several Vertically arranged water collection tanks are connected with adjacent water collection tanks, and the top size of the rainwater collection unit is larger than the bottom size; The purification unit includes a plurality of filter layers, and the top of each water collection tank is arranged with a filter layer, or the top of the top water collection tank, the bottom and the top of the middle water collection tank are respectively arranged with filter layers; Water storage unit, the bottom water collecting tank is connected with the water storage unit; The utilization unit is communicated with the water storage unit to supply water to the field greenhouse. 2 . The rainwater and flood resource utilization device in a field greenhouse area in the northern region according to claim 1 , further comprising a drainage unit, and the water collecting tank and the water storage unit on the topmost layer are respectively communicated with the drainage unit. 3 . 3. a kind of rainwater resource utilization device in a northern field greenhouse area according to claim 1, is characterized in that, described purification unit comprises the described filter layer of at least three layers, the filter layer and the described filter layer where this filter layer is located are characterized in that The size of the water collecting tank is adapted, the first filter layer on the top layer is a permeable plate, the second filter layer in the middle is a multi-layer staggered and superimposed screen mesh, and the third filter layer on the bottom layer is coarse sand. 4. a kind of rainwater resource utilization device in a northern field greenhouse area according to claim 3, is characterized in that, described coarse sand particle size is 0.3-0.7mm, and the upper and lower sides of coarse sand are arranged with permeable layer, The water-permeable layer is a screen, and the sieve aperture of the water-permeable layer is smaller than the particle size of the coarse sand, and the particle size of the coarse sand is smaller than the sieve aperture of the second filter layer. 5. A device for utilizing rainwater resources in a field greenhouse area in northern regions according to claim 1, wherein the rainwater collecting unit comprises at least three-layer described water collecting troughs, the first water collecting trough on the top layer and the middle The longitudinal section of the second water collecting tank is trapezoidal, the longitudinal section of the third water collecting tank on the bottom layer is rectangular, and the sizes of the three water collecting tanks decrease in turn from high to low. 6 . The rainwater resource utilization device in a field greenhouse area in the northern region according to claim 2 , wherein the drainage unit comprises a drain pipe buried in the ground, the water storage unit and the water collecting tank on the topmost layer. 7 . They are respectively connected with the drainage pipes; the lower half of the drainage pipes are provided with several rows of seepage holes for draining rainwater into the ground. 7. a kind of rainwater resource utilization device in a field greenhouse area in northern region according to claim 1, is characterized in that, described utilization unit comprises the sprinkler irrigation pipeline and drip irrigation pipeline arranged in the field greenhouse, and the sprinkler irrigation pipeline has The sprinkling nozzle and the drip irrigation pipeline are provided with a watering nozzle. 8. A rainwater resource utilization device in a field greenhouse area in the northern region according to claim 7, wherein the water storage unit comprises a water storage tank, and the water storage tank is arranged on the ground between the adjacent greenhouses in the greenhouse area, The reservoir is set as a cuboid, and the water outlet of the reservoir is communicated with the sprinkler irrigation pipeline and the drip irrigation pipeline. 9. A rainwater resource utilization device in a field greenhouse area in northern regions according to claim 1, characterized in that, further comprising a solar power generation and storage unit installed on the top of a field greenhouse or a field greenhouse management room, a solar power generation and storage unit. connected to the water pump of the utilization unit. 10. according to the construction method of a kind of rainwater resource utilization device in the northern region field greenhouse area according to any one of claim 1-9, it is characterized in that, comprise the following content: Rainwater and surface runoff enter the rainwater collection unit through the filter layer, and the filter layer filters and purifies the rainwater in the process of rainwater flow; The filtered rainwater enters the water storage unit; The water storage unit supplies water to the field greenhouse through the utilization unit.

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