Agricultural greenhouse rainwater collection irrigation system for arid regions

Abstract

The utility model discloses a kind of agricultural greenhouse rainwater harvesting irrigation systems for arid region, belong to agricultural irrigation technical field.The system includes water storage tank, collection mechanism, irrigation mechanism and water storage control mechanism.Collection mechanism utilizes arc-shaped greenhouse top to collect rainwater, and after multistage filtration, store in water storage tank;Water storage control mechanism monitors water level in tank by water level sensor, and when water level is too low, automatically extract groundwater to supplement;Irrigation mechanism then transports the water stored to greenhouse and sprays irrigation.The utility model effectively stores rainwater, couples groundwater supplement mechanism, relieves arid region agriculture's excessive dependence on groundwater, realizes the intelligent control and sustainable use of water resources.

Description

Technical Field

[0001] This utility model relates to the field of greenhouse irrigation technology, and in particular to a rainwater harvesting and irrigation system for agricultural greenhouses in arid areas. Background Technology

[0002] Currently, about 40% of the world's agricultural land is located in arid or semi-arid regions, of which 60% of agriculture in arid areas relies on unsustainable groundwater resources, leading to a continuous decline in groundwater levels and increasingly severe problems of land desertification and ecological degradation.

[0003] Traditional irrigation methods have further exacerbated water shortages and environmental pressures. Although greenhouse technology has played a role in increasing crop yields, its irrigation systems still largely rely on external water sources, failing to effectively utilize natural rainfall, resulting in water waste and environmental burden. Based on these problems, there is an urgent need for an irrigation system capable of collecting, storing, and intelligently allocating water resources to achieve sustainable agricultural development in arid regions. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rainwater harvesting and irrigation system for agricultural greenhouses in arid regions.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A rainwater harvesting and irrigation system for agricultural greenhouses in arid regions includes:

[0007] Water storage tanks are used to store collected rainwater / extracted groundwater;

[0008] The collection mechanism, located on the side of the greenhouse, is used to collect rainwater via the arched roof of the greenhouse and transport it to a storage tank for storage.

[0009] An irrigation mechanism, which is installed inside the greenhouse and is used for watering the greenhouse;

[0010] A water storage and control mechanism is installed in a water storage tank to monitor the amount of water accumulated inside the tank. The water storage and control mechanism includes a monitoring component and a water replenishment component.

[0011] The monitoring component is installed inside the water storage tank and is used to monitor the highest and lowest water levels inside the water storage tank.

[0012] The water replenishment component is located inside the water storage tank and is used to draw groundwater to replenish the water storage tank when the water level inside the tank is low.

[0013] The above technical solution further includes: the water storage tank includes an outer cylinder, an inner cylinder, and a drain pipe;

[0014] The inner cylinder is installed inside the outer cylinder, and the inner cylinder is provided with a through hole, through which the outer cylinder and the interior of the inner cylinder are connected;

[0015] The drain pipe is installed on the outer cylinder, and a valve is installed on the drain pipe;

[0016] The top of the water tank is also equipped with a cover to seal the top of the water tank.

[0017] Furthermore, the collection mechanism includes a rainwater collection trough and a filter assembly;

[0018] The rainwater collection trough is installed at an angle on the side wall of the greenhouse;

[0019] The filter assembly is installed at the bottom of the rainwater collection box, and the side of the filter assembly away from the rainwater collection box is connected to the outer cylinder.

[0020] Furthermore, the irrigation mechanism includes an inlet pipe, a water pump a, a water delivery pipe, and a nozzle;

[0021] The inlet of the water inlet pipe is installed inside the outer cylinder, and the outlet of the water inlet pipe is installed on the inlet of the water pump a.

[0022] The water pump a is installed outside the water storage tank, and the inlet of the water delivery pipe is connected to the outlet of the water pump a.

[0023] The water pipes are laid inside the greenhouse;

[0024] Multiple nozzles are installed at intervals on the water supply pipe.

[0025] Furthermore, the filter assembly includes a filter cylinder, a first connecting hose, a filter cylinder, and a second connecting hose;

[0026] The baffle is fixedly installed at the bottom of the rainwater collection trough;

[0027] A filter screen is installed at the water inlet of the baffle.

[0028] The inlet end of the first connecting hose is threaded onto the outlet end of the filter cylinder via interface a, and the end of the first connecting hose furthest from the filter cylinder is threaded onto the inlet of the filter cylinder via interface b.

[0029] The filter cartridge is mounted on the greenhouse via a bracket.

[0030] The inlet end of the second connecting hose is threaded onto the outlet end of the filter cartridge via interface c, and the outlet end of the second connecting hose is threaded onto the outer cylinder via interface d.

[0031] Furthermore, the monitoring components include a liquid level sensor a, a liquid level sensor b, and a controller;

[0032] The liquid level sensor a is installed at the position of the highest water level line inside the inner cylinder;

[0033] The liquid level sensor b is installed at the lowest water level line inside the inner cylinder.

[0034] The controller is installed in the electrical control box of the greenhouse, and the liquid level sensor a and liquid level sensor b are electrically connected to the controller respectively.

[0035] Furthermore, the water replenishment component includes a water pump b, a pumping pipe, and a water replenishment pipe;

[0036] The water pump b is installed on the outside of the water storage tank;

[0037] The inlet of the pumping pipe is installed in the groundwater layer, and the outlet of the pumping pipe is installed on the inlet of the water pump b.

[0038] The inlet of the water supply pipe is installed on the outlet of the water pump b, and the outlet of the water supply pipe is installed inside the inner cylinder.

[0039] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0040] In this invention, rainwater is collected by an arc-shaped greenhouse roof, filtered, and stored, reducing the loss of precipitation resources. At the same time, the combination of rainwater and groundwater dual-source complementary mechanism effectively addresses the problems of dry season and unstable precipitation, and alleviates the excessive dependence of regional agriculture on groundwater. Attached Figure Description

[0041] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0042] Figure 2 This is a schematic diagram of the structure of this utility model;

[0043] Figure 3 This is a partial cross-sectional view of the collecting mechanism.

[0044] In the picture:

[0045] 110. Outer cylinder; 120. Inner cylinder;

[0046] 210. Rainwater collection trough; 220. Barrier; 230. First connecting hose; 240. Filter cartridge; 250. Second connecting hose;

[0047] 310. Water pump a; 320. Water delivery pipe; 330. Sprinkler head;

[0048] 410. Water pump b; 420. Pumping pipe; 430. Water supply pipe;

[0049] 510. Liquid level sensor a; 520. Liquid level sensor b. Detailed Implementation

[0050] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0051] Example 1

[0052] See attached document Figure 1-3 A rainwater harvesting and irrigation system for agricultural greenhouses in arid regions includes: a water storage tank, a collection mechanism, an irrigation mechanism, and a water storage and regulation mechanism.

[0053] Specifically, the water storage tank is used to store collected rainwater / extracted groundwater; the collection mechanism is located on the side of the greenhouse to collect rainwater via the arched greenhouse roof and transport it to the water storage tank for storage; the irrigation mechanism is installed inside the greenhouse for watering the greenhouse; the water storage and control mechanism is located in the water storage tank to monitor the water level inside the tank, and the water storage and control mechanism includes a monitoring component and a water replenishment component; the monitoring component is located inside the water storage tank to monitor the highest and lowest water levels inside the tank; the water replenishment component is located inside the water storage tank to extract groundwater to replenish the tank when the water level is low. The water storage tank adopts a double-layer structure, with through holes on the inner cylinder 120 to facilitate water exchange.

[0054] In one embodiment of this utility model, the water storage tank includes an outer cylinder 110, an inner cylinder 120, and a drain pipe. The inner cylinder 120 is installed inside the outer cylinder 110 and has a through hole, through which the outer cylinder 110 and the inner cylinder 120 communicate. The drain pipe is installed on the outer cylinder 110 and has a valve. A tank cover is also installed on the top of the water storage tank to seal the top. The drain pipe at the bottom of the outer cylinder 110 facilitates drainage and cleaning, and the top has an openable tank cover for easy maintenance and cleaning. The valve on the drain pipe can be controlled manually or electrically.

[0055] In one embodiment of this utility model, the collection mechanism includes a rainwater collection trough 210 and a filter assembly; the rainwater collection trough 210 is installed at an angle on the side wall of the greenhouse; the filter assembly is installed at the bottom end of the rainwater collection trough 210, and the side of the filter assembly away from the rainwater collection trough 210 is connected to the outer cylinder 110. The angled installation of the rainwater collection trough 210 facilitates rainwater collection, and the filter assembly can filter the rainwater, removing solid impurities from it.

[0056] In one embodiment of this utility model, the irrigation mechanism includes an inlet pipe, a water pump a310, a water delivery pipe 320, and sprinklers 330. The inlet of the inlet pipe is installed inside the outer cylinder 110, and the outlet of the inlet pipe is installed on the inlet of the water pump a310. The water pump a310 is installed outside the water storage tank, and the inlet of the water delivery pipe 320 is connected to the outlet of the water pump a310. The water delivery pipe 320 is laid inside the greenhouse. Multiple sprinklers 330 are installed at intervals on the water delivery pipe 320. The water pump a310 provides the water pressure required for irrigation, the water delivery pipe 320 is arranged near the crop roots, and the sprinklers 330 enable spray irrigation.

[0057] In one embodiment of this utility model, the filter assembly includes a baffle 220, a first connecting hose 230, a filter cylinder 240, and a second connecting hose 250. The baffle 220 is fixedly installed at the bottom of the rainwater collection trough 210. A filter screen is installed at the inlet of the baffle 220. The inlet end of the first connecting hose 230 is threadedly installed on the outlet end of the baffle 220 through interface a, and the end of the first connecting hose 230 away from the baffle 220 is threadedly installed on the inlet of the filter cylinder 240 through interface b. The filter cylinder 240 is installed on the greenhouse through a bracket. The inlet end of the second connecting hose 250 is threadedly installed on the outlet end of the filter cylinder 240 through interface c, and the outlet end of the second connecting hose 250 is threadedly installed on the outer cylinder 110 through interface d. The filter cylinder 220 has a built-in filter screen that initially intercepts large particles of impurities. The filter cylinder 240 can be filled with activated carbon or sand to further purify the water. The first connecting hose 230 and the second connecting hose 250 have threaded interfaces to facilitate the disassembly of the filter cylinder 240 for cleaning / replacement.

[0058] In one embodiment of this utility model, the monitoring component includes a level sensor a510, a level sensor b520, and a controller. Level sensor a510 is installed at the highest water level line inside the inner cylinder 120; level sensor b520 is installed at the lowest water level line inside the inner cylinder 120; the controller is installed in the greenhouse's electrical control box, and level sensors a510 and b520 are electrically connected to the controller. The level sensors a510 and b520 monitor the water level in real time, and the controller automatically starts and stops the water replenishment component based on the water level signal, achieving intelligent water level control.

[0059] In one embodiment of this utility model, the water replenishment component includes a water pump b410, a pumping pipe 420, and a replenishment pipe 430. The water pump b410 is installed outside the water storage tank. The inlet of the pumping pipe 420 is installed in the groundwater layer, and the outlet of the pumping pipe 420 is installed on the inlet of the water pump b410. The inlet of the replenishment pipe 430 is installed on the outlet of the water pump b410, and the outlet of the replenishment pipe 430 is installed inside the inner cylinder 120. The water pump b410 automatically starts when the water level is lower than a set value, pumping water from the groundwater layer through the pumping pipe 420 and injecting it into the inner cylinder 120 through the replenishment pipe 430, ensuring a continuous water supply to the irrigation system.

[0060] In this embodiment, the working principle of the device is as follows: rainwater is collected through the arched roof and flows into the inclined rainwater collection box 210. The rainwater flows through the filter screen in the baffle 220 to remove larger particles of impurities. Then, it enters the filter cylinder 240 through the first connecting hose 230 for deep filtration, such as activated carbon or sand filtration. Finally, it is transported to the inner cylinder 120 of the water storage tank through the second connecting hose 250 for storage.

[0061] The inner cylinder 120 of the water storage tank is equipped with a through hole to facilitate water exchange and sediment management. The water storage control mechanism monitors the water level in the inner cylinder in real time through level sensors a510 and b520. When the water level is lower than the minimum water level line, the controller automatically starts the water pump b410, which draws water from the groundwater layer through the pumping pipe 420 and replenishes it into the inner cylinder 120 through the water supply pipe 430 until the water level reaches the set height.

[0062] During irrigation, the water pump A310 starts, pumping water from the storage tank through the inlet pipe to the delivery pipe 320, and finally through multiple nozzles 330 to achieve uniform spraying irrigation of crops in the greenhouse. This effectively utilizes collected rainwater and replenished groundwater, realizing intelligent regulation and sustainable utilization of agricultural water resources in arid areas.

[0063] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A rainwater harvesting and irrigation system for agricultural greenhouses in arid regions, characterized in that, include: Water storage tanks are used to store collected rainwater / extracted groundwater; The collection mechanism, located on the side of the greenhouse, is used to collect rainwater via the arched roof of the greenhouse and transport it to a storage tank for storage. An irrigation mechanism, which is installed inside the greenhouse and is used for watering the greenhouse; A water storage and control mechanism, which is installed in a water storage tank, is used to monitor the amount of water accumulated inside the water storage tank. The water storage and control mechanism includes a monitoring component and a water replenishment component. The monitoring component is installed inside the water storage tank and is used to monitor the highest and lowest water levels inside the water storage tank. The water replenishment component is located inside the water storage tank and is used to draw groundwater to replenish the water storage tank when the water level inside the tank is low.

2. The rainwater harvesting and irrigation system for agricultural greenhouses in arid regions according to claim 1, characterized in that, The water storage tank includes an outer cylinder (110), an inner cylinder (120), and a drain pipe; The inner cylinder (120) is installed inside the outer cylinder (110), and the inner cylinder (120) is provided with a through hole. The outer cylinder (110) and the interior of the inner cylinder (120) are connected through the through hole. The drain pipe is installed on the outer cylinder (110), and a valve is installed on the drain pipe; The top of the water tank is also equipped with a cover to seal the top of the water tank.

3. The rainwater harvesting and irrigation system for agricultural greenhouses in arid regions according to claim 2, characterized in that, The collection mechanism includes a rainwater collection trough (210) and a filter assembly; The rainwater collection trough (210) is installed at an angle on the side wall of the greenhouse; The filter assembly is installed at the bottom of the rainwater collection box (210), and the side of the filter assembly away from the rainwater collection box (210) is connected to the outer cylinder (110).

4. The rainwater harvesting and irrigation system for agricultural greenhouses in arid areas according to claim 3, characterized in that, The irrigation mechanism includes an inlet pipe, a water pump a (310), a water delivery pipe (320), and a nozzle (330). The inlet of the water inlet pipe is installed inside the outer cylinder (110), and the outlet of the water inlet pipe is installed on the inlet of the water pump a (310). The water pump a (310) is installed outside the water storage tank, and the inlet of the water delivery pipe (320) is connected to the outlet of the water pump a (310). The water supply pipe (320) is laid inside the greenhouse; Multiple nozzles (330) are installed at intervals on the water supply pipe (320).

5. A rainwater harvesting and irrigation system for agricultural greenhouses in arid regions according to claim 4, characterized in that, The filter assembly includes a baffle (220), a first connecting hose (230), a filter cartridge (240), and a second connecting hose (250). The baffle (220) is fixedly installed at the bottom end of the rainwater collection box (210); A filter screen is installed at the inlet of the baffle (220); The inlet end of the first connecting hose (230) is threaded onto the outlet end of the baffle (220) through interface a, and the end of the first connecting hose (230) away from the baffle (220) is threaded onto the inlet of the filter cylinder (240) through interface b. The filter cartridge (240) is mounted on the greenhouse via a bracket; The inlet end of the second connecting hose (250) is installed on the outlet end of the filter cylinder (240) via the interface c thread, and the outlet end of the second connecting hose (250) is installed on the outer cylinder (110) via the interface d thread.

6. A rainwater harvesting and irrigation system for agricultural greenhouses in arid regions according to claim 5, characterized in that, The monitoring components include a liquid level sensor a (510), a liquid level sensor b (520), and a controller; The liquid level sensor a (510) is installed at the position of the highest water level inside the inner cylinder (120); The liquid level sensor b (520) is installed at the lowest water level line inside the inner cylinder (120); The controller is installed in the electrical control box of the greenhouse, and the liquid level sensor a (510) and liquid level sensor b (520) are electrically connected to the controller respectively.

7. A rainwater harvesting and irrigation system for agricultural greenhouses in arid regions according to claim 6, characterized in that, The water supply component includes a water pump b (410), a water pumping pipe (420), and a water supply pipe (430). The water pump b (410) is installed outside the water storage tank; The inlet of the pumping pipe (420) is installed in the groundwater layer, and the outlet of the pumping pipe (420) is installed on the inlet of the water pump b (410). The inlet of the water supply pipe (430) is installed on the outlet of the water pump b (410), and the outlet of the water supply pipe (430) is installed inside the inner cylinder (120).

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