Greenhouse hot water circulation irrigation integrated device capable of storing and discharging water

Abstract

The invention discloses a greenhouse hot water circulation irrigation integrated device capable of storing and discharging water, and relates to the technical field of water circulation irrigation equipment, the greenhouse hot water circulation irrigation integrated device comprises an upper layer hot water storage and release tank, a lower layer hot water storage and release tank, a heat release pipe, a cold water pool and a hot water pool, a second electromagnetic valve is connected between the water passing pipe and the heat release pipe in series, and an irrigation pipe is connected above the heat release pipe in parallel in the ridge direction. When no light exists, hot water in the hot water pool is pumped into the upper-layer heat storage and release water tank and the lower-layer heat storage and release water tank through a third water pipe, a collecting pipe and a bifurcated pipe for heat release, and temperature is provided for a greenhouse; a second electromagnetic valve is opened, warm water in the heat storage and release water tank flows to a heat release pipeline to heat a crop area, crops are irrigated through drip irrigation water holes, remaining water flows into the cold water pool through a water return pipe to achieve water circulation, and secondary heat storage and release are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of water circulation irrigation equipment, and particularly relates to an integrated greenhouse hot water circulation irrigation device capable of storing and discharging water. Background Art

[0002] Greenhouse irrigation refers to an irrigation technology specifically used for greenhouse cultivation. It adopts a special irrigation system to convey water from pipelines into the greenhouse and controls the water consumption and distribution through sprayers or drip irrigation devices. This technology is beneficial to maintaining the humidity and temperature stability in the greenhouse, while reducing waste and saving water resources; greenhouse irrigation is an important part of modern agricultural technology. It enables farmers to grow more types of crops in cold, arid or water-scarce environments. The greenhouse irrigation system can also accurately prepare nutrients, helping farmers improve the growth rate and yield of crops and reducing the dependence on pesticides and fertilizers.

[0003] Affected by factors such as the short supply of vegetables in the winter market and the limited demand for heating energy in the greenhouse, the greenhouse is continuously developing towards high efficiency and energy conservation. The north wall is used as a heat storage body of the greenhouse to passively store and release heat. However, due to the large north-south span of the greenhouse and the influence of crop planting on the heat transfer of the greenhouse, the temperature near the south side and the crop area of the greenhouse, especially at night, is relatively low, which in turn affects crop growth. In addition, when irrigating plants in the greenhouse, cold tap water is mostly directly used for irrigation. Especially in winter, this will not only reduce the temperature of the greenhouse, but also inhibit the growth and development of crop roots, resulting in a reduction in crop yield and even possible cold damage. And during irrigation, traditional irrigation methods often cause water resource waste, having certain deficiencies. Summary of the Invention

[0004] The purpose of the present invention is to provide an integrated greenhouse hot water circulation irrigation device capable of storing and discharging water to solve the above-mentioned deficiencies in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solution: An integrated device for greenhouse hot water circulation irrigation with water storage and drainage functions, including an upper hot water storage and discharge tank, a lower hot water storage and discharge tank, a heat release pipe, a cold water pool, and a hot water pool. The lower hot water storage and discharge tank is connected to the heat release pipe through a water pipe, and a second electromagnetic valve is connected in series between the water pipe and the heat release pipe. The irrigation pipes are connected in parallel above the heat release pipe along the ridge direction, and a plurality of drip irrigation pipes are connected to the irrigation pipes. The heat release pipe is connected to the cold water pool through a first water pipe, and a third electromagnetic valve is connected in series on the first water pipe; a second water pipe is connected to the cold water pool, and a third water pipe is connected to the bottom of the hot water pool. The same collecting pipe is connected between the second water pipe and the third water pipe. One end of the collecting pipe is connected to two bifurcated pipes, and the two bifurcated pipes are respectively connected to the opposite upper hot water storage and discharge tank and the lower hot water storage and discharge tank. A return pipe is also connected to the hot water pool, and the return pipe is connected to the collecting pipe, and a first electromagnetic valve is connected in series on the return pipe; a mixing channel is provided between the upper hot water storage and discharge tank and the lower hot water storage and discharge tank, and a fourth electromagnetic valve is provided in the mixing channel.

[0006] As a further description of the above technical solution:

[0007] Pumps are provided on both the second water pipe and the third water pipe, and a check valve is provided on the collecting pipe.

[0008] As a further description of the above technical solution:

[0009] A U-shaped pipe is connected to the heat release pipe, and a pressure pump is provided on the U-shaped pipe.

[0010] As a further description of the above technical solution:

[0011] A spray assembly is also provided on the irrigation pipe. The spray assembly includes a telescopic rod fixedly connected to the irrigation pipe, and a spray pipe is fixedly connected to the telescopic rod.

[0012] As a further description of the above technical solution:

[0013] Rubber pipes are connected to both ends of the spray pipe, and a plurality of spray heads are connected to the spray pipe, and spray openings are provided on the spray heads.

[0014] As a further description of the above technical solution:

[0015] The exteriors of the upper hot water storage and discharge tank and the lower hot water storage and discharge tank are both coated with black heat-absorbing paint; the upper hot water storage and discharge tank and the lower hot water storage and discharge tank are stacked, and the stacking height is 50-60 cm. One side of the upper hot water storage and discharge tank and the lower hot water storage and discharge tank has a curvature.

[0016] As a further description of the above technical solution:

[0017] The heat release pipes are buried below the soil layer, and the heat release pipes are connected to the upper heat storage and hot water tank, the lower heat storage and hot water tank, the cold water pool and the hot water pool through pipelines to form a loop.

[0018] As a further description of the above technical solution:

[0019] The cold water pool and the hot water pool are located 50 cm below the ground near the entrance side of the pedestrian passage in the greenhouse, and heat insulation materials are provided outside the cold water pool and the hot water pool.

[0020] As a further description of the above technical solution:

[0021] The check valve prevents water flow back and water hammer effect.

[0022] In the above technical solution, the beneficial effects of an integrated device for greenhouse hot water circulation irrigation that can store and release water provided by the present invention are:

[0023] When there is light, the water in the cold water pool is pumped into the upper heat storage and hot water tank and the lower heat storage and hot water tank through the second water pipe, the collecting pipe and the bifurcated pipe for heat storage. After reaching a certain temperature, it flows back to the hot water pool through the return water pipe for heat preservation, and at the same time, the above heat storage process is repeated for secondary heat storage; when there is no light, the hot water in the hot water pool is pumped into the upper heat storage and hot water tank and the lower heat storage and hot water tank through the third water pipe, the collecting pipe and the bifurcated pipe for heat release to provide temperature for the greenhouse. When the hot water reaches the temperature that the crop roots can accept, the second electromagnetic valve is opened to let the warm water in the heat storage and hot water tank flow to the heat release pipeline for heating the crop area, and irrigation of the crops is realized through the drip irrigation holes. The remaining water flows back into the cold water pool through the return water pipe to realize water circulation. Through secondary heat storage and release, the heat required at night is guaranteed; the use of solar energy can increase the temperature in the greenhouse, and at the same time, it can realize warm water irrigation of crops and full utilization of water resources, which is beneficial to crop growth and increases crop yield. The drip irrigation method can directly deliver water to the roots of plants, greatly reducing water evaporation and leakage and improving water use efficiency.

[0024] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not intended to limit the present disclosure.

[0025] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a full disclosure of the entire scope of the disclosed technology or all features. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0027] Figure 1 Schematic diagram of the overall structure provided by the embodiment of the present invention installed in the soil;

[0028] Figure 2 Schematic diagram of the overall structure provided by the embodiment of the present invention;

[0029] Figure 3 Longitudinal sectional view of the partial structure of the overall structure provided by the embodiment of the present invention installed in the soil;

[0030] Figure 4 Schematic diagram of the partial structure provided by the embodiment of the present invention;

[0031] Figure 5 Longitudinal sectional connection schematic diagram of the upper hot water storage and release tank and the lower hot water storage and release tank provided by the embodiment of the present invention;

[0032] Figure 6 For Figure 2 Enlarged view of part A in

[0033] Explanation of reference numerals:

[0034] 1. Upper hot water storage and release tank; 2. Lower hot water storage and release tank; 3. Heat release pipe; 4. Irrigation pipe; 5. Cold water pool; 6. Hot water pool; 7. Water connection pipe; 8. Second electromagnetic valve; 9. Drip irrigation pipe; 10. First water pipe; 11. Third electromagnetic valve; 12. Second water pipe; 13. Third water pipe; 14. Collection pipe; 15. Branch pipe; 16. Return pipe; 17. First electromagnetic valve; 18. Mixing channel; 19. Fourth electromagnetic valve; 20. Water pump; 21. Check valve; 22. U-shaped pipe; 23. Booster pump; 241. Telescopic rod; 242. Spraying pipe; 243. Rubber pipe; 245. Spraying head; 246. Spraying port. Detailed implementation manners

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the following will clearly and completely describe the technical solutions of the embodiments of the present disclosure with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts fall within the scope of protection of the present disclosure.

[0036] Please refer toFigures 1-6 , an integrated device for greenhouse hot water circulation irrigation that can store and release water provided in this embodiment includes an upper hot water storage and release tank 1, a lower hot water storage and release tank 2, a heat release pipe 3, a cold water tank 5, and a hot water tank 6. The cold water tank 5 is connected to an external water supply device through an external pipeline, serving as an external water supply channel. The above-mentioned mechanisms are all existing structures and will not be elaborated here. The lower hot water storage and release tank 2 is connected to the heat release pipe 3 through a water pipe 7. A second electromagnetic valve 8 is connected in series between the water pipe 7 and the heat release pipe 3. The irrigation pipes 4 are connected in parallel above the heat release pipe 3 along the ridge direction. A plurality of drip irrigation pipes 9 are connected to the irrigation pipes 4. The heat release pipe 3 is connected to the cold water tank 5 through a first water pipe 10. A third electromagnetic valve 11 is connected in series on the first water pipe 10; a second water pipe 12 is connected to the cold water tank 5. A third water pipe 13 is connected to the bottom of the hot water tank 6. The same collecting pipe 14 is connected between the second water pipe 12 and the third water pipe 13. One end of the collecting pipe 14 is connected to two bifurcated pipes 15. The two bifurcated pipes 15 are respectively connected to the opposite upper hot water storage and release tank 1 and the lower hot water storage and release tank 2. A return pipe 16 is also connected to the hot water tank 6. The return pipe 16 is connected to the collecting pipe 14. A first electromagnetic valve 17 is connected in series on the return pipe 16; a mixing channel 18 is provided between the upper hot water storage and release tank 1 and the lower hot water storage and release tank 2. A fourth electromagnetic valve 19 is provided in the mixing channel 18.

[0037] In the further provided embodiment of the present invention, water pumps 20 are provided on both the second water pipe 12 and the third water pipe 13. A check valve 21 is provided on the collecting pipe 14. The water pumps 20 are connected to an external power supply and a control switch.

[0038] Furthermore, a U-shaped pipe 22 is connected to the heat release pipe 3. A pressure pump 23 is provided on the U-shaped pipe 22. The U-shaped pipe 22 is arranged upside down on the heat release pipe 3. And the pressure pump 23 is an existing device. The pressure pump 23 is connected to an external power supply and a control switch. Its purpose is to increase the water pressure inside the pipeline. When the internal pressure of the heat release pipe 3 is small, the water flowing inside does not enter the U-shaped pipe 22.

[0039] In the further provided embodiment of the present invention, a spraying assembly is also provided on the irrigation pipe 4. The spraying assembly includes a telescopic rod 241 fixedly connected to the irrigation pipe 4. A spraying pipe 242 is fixedly connected to the telescopic rod 241. By providing the telescopic rod 241 on the irrigation pipe 4, it is used to support the spraying pipe 242.

[0040] Specifically, rubber hoses 243 are connected to both ends of the spray pipe 242. A plurality of spray heads 245 are connected to the spray pipe 242. Spray openings 246 are formed in the spray heads 245. When the pressure pump 23 on the U-shaped pipe 22 operates, the pressure inside the water pipe 7 will increase. At this time, the water pressure will squeeze the rubber hoses 243 to straighten, and the spray heads 245 will spray water, so as to realize the synchronous progress of drip irrigation and sprinkler irrigation. When the pressure is relatively low, the rubber hoses 243 lose the supporting force, and the spray pipe 242 retracts onto the irrigation pipe 4 due to its own weight, which can reduce the height of the spray pipe 242 and facilitate operations such as picking and weeding by operators in the later stage. Spray openings 246 do not need to be formed on the side of the spray heads 245 parallel to the spray pipe 242.

[0041] In the embodiments provided by the present invention, black heat-absorbing paint is coated on the exteriors of the upper hot water storage tank 1 and the lower hot water storage tank 2. A nano platinum black coating can be used, which has good heat absorption performance. It evenly distributes platinum black microcrystals in the paint through nanotechnology to form a film-like coating. The upper hot water storage tank 1 and the lower hot water storage tank 2 are stacked. The upper hot water storage tank 1 and the lower hot water storage tank 2 can be directly pressure-irrigated when placed one above the other. The pressure generated by the height difference between the upper hot water storage tank 1 and the lower hot water storage tank 2 is less than the pressure entering the rubber hoses 243. Therefore, the spray operation does not occur at this time, saving costs. Their stacking height is 50 - 60 cm, the width of the lower hot water storage tank 2 is 70 - 75 cm. One side of the upper hot water storage tank 1 and the lower hot water storage tank 2 has a curvature, and the curvature fits the greenhouse framework, facilitating their installation. The other side of the two has an inclination of 30° - 45° designed according to the solar radiation angle, so that the upper hot water storage tank 1 and the lower hot water storage tank 2 can better receive sunlight.

[0042] In the further provided solution of the present invention, the heat release pipe 3 is buried below the soil layer, and the heat release pipe 3 is connected to the upper hot water storage tank 1, the lower hot water storage tank 2, the cold water tank 5 and the hot water tank 6 through pipelines to form a loop. By burying the heat release pipe 3 in the soil layer, the soil layer can be used to insulate it. The heat release pipe 3 is arranged at the trench between two vegetable ridges.

[0043] In the further provided solution of the present invention, the cold water tank 5 and the hot water tank 6 are located 50 cm below the ground near the entrance side of the pedestrian passage in the greenhouse. Heat insulation materials are arranged on the exteriors of the cold water tank 5 and the hot water tank 6. The heat insulation materials are composed of polymer, filler and other additives, and form a heat insulation layer on the coated surface, which can effectively resist the external cold and high temperature and play the role of heat preservation and cold preservation. They have good durability and will not crack or peel. Arranging the cold water tank 5 and the hot water tank 6 in the pedestrian passage not only facilitates maintenance, but also facilitates the natural return of the return pipe 16 and reduces energy consumption.

[0044] In a further solution provided by the present invention, the check valve 21 prevents the backflow of water and the water hammer effect.

[0045] During operation, when in a light environment, the cold water in the cold water tank 5 is pumped into the collecting pipe 14 through the second pipe by starting the water pump 20, and flows along the collecting pipe 14 until it flows into the upper heat storage hot water tank 1 and the lower heat storage hot water tank 2 through the branch pipe 15 at one end of the collecting pipe 14 for light heat storage. After reaching a certain temperature, the hot water is then refluxed to the hot water tank 6 for heat preservation through the branch pipe 15, the collecting pipe 14, and the return pipe 16. This process is repeated twice to ensure sufficient water volume for heat release at night.

[0046] When there is no light, the hot water in the hot water tank 6 is pumped into the upper heat storage hot water tank 1 and the lower heat storage hot water tank 2 through the third water pipe 13, the collecting pipe 14, and the branch pipe 15. The cold water in the cold water tank 5 can be synchronously adjusted according to the water temperature situation. After adjusting the suitable water temperature, the second electromagnetic valve 8 on the water supply pipe 7 is opened, and the water flows into the heat release pipe 3 to heat the crop area. When the water temperature is too low, the water in the heat release pipe 3 will flow into the cold water tank 5 along the return pipe 16.

[0047] During irrigation, the fourth electromagnetic valve 19 at the mixing channel 18 of the upper heat storage hot water tank 1 and the lower heat storage hot water tank 2 is synchronously opened. Due to the height difference between the upper heat storage hot water tank 1 and the lower heat storage hot water tank 2, the water flow will be pressed into the irrigation pipe 4 and drip on the plant roots along the drip irrigation pipe 9 provided on the irrigation pipe to achieve irrigation.

[0048] When it is necessary to spray a large area of the plant surface, by starting the pressure pump 23 on the U-shaped pipe 22, the pressure on the water supply pipe 7 is increased. After the increased water flow enters the heat release pipe 3, part of the water flow will be pressed into the rubber pipe 243. At this time, the rubber pipe 243 is supported by the pressure, and the pressed water flow will be sprayed out through the spray holes 246 opened on the spray heads 245 of the spray pipe 242.

[0049] Only some exemplary embodiments of the present invention have been described by way of illustration. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A greenhouse hot water circulation irrigation integrated device capable of storing and releasing water, comprising an upper hot water storage and release tank (1), a lower hot water storage and release tank (2), a heat release pipe (3), a cold water tank (5) and a hot water tank (6), characterized in that: The lower layer hot water storage and discharge tank (2) is connected to the heat release pipe (3) through a water pipe (7); a second electromagnetic valve (8) is connected in series between the water pipe (7) and the heat release pipe (3); an irrigation pipe (4) is connected in parallel above the heat release pipe (3) along the ridge direction; a plurality of drip irrigation pipes (9) are connected to the irrigation pipe (4); the heat release pipe (3) is connected to the cold water pool (5) through a first water pipe (10); a third electromagnetic valve (11) is connected in series to the first water pipe (10); The cold water pool (5) is connected to a second water pipe (12), the bottom of the hot water pool (6) is connected to a third water pipe (13), the second water pipe (12) and the third water pipe (13) are connected to a same collecting pipe (14), one end of the collecting pipe (14) is connected to two bifurcated pipes (15), the two bifurcated pipes (15) are respectively connected to the upper layer hot water storage and discharge tank (1) and the lower layer hot water storage and discharge tank (2) respectively, the hot water pool (6) is also connected to a return pipe (16), the return pipe (16) is connected to the collecting pipe (14), and the return pipe (16) is connected in series with a No. 1 electromagnetic valve (17); A mixing channel (18) is provided between the upper hot water storage and discharge tank (1) and the lower hot water storage and discharge tank (2), and a No. 4 electromagnetic valve (19) is provided in the mixing channel (18).

2. The greenhouse hot water circulation irrigation integrated device capable of storing and releasing water according to claim 1, characterized in that: The second water pipe (12) and the third water pipe (13) are both provided with a water pump (20), and the collecting pipe (14) is provided with a check valve (21).

3. The greenhouse hot water circulation irrigation integrated device capable of storing and releasing water according to claim 1, characterized in that: The heat release pipe (3) is connected to a U-shaped pipe (22), and a pressure pump (23) is provided on the U-shaped pipe (22).

4. The greenhouse hot water circulation irrigation integrated device capable of storing and releasing water according to claim 1, characterized in that: The irrigation pipe (4) is also provided with a spray assembly, and the spray assembly comprises a telescopic rod (241) fixedly connected to the irrigation pipe (4), and a spray pipe (242) is fixedly connected to the telescopic rod (241).

5. The greenhouse hot water circulation irrigation integrated device capable of storing and releasing water according to claim 4, characterized in that: Both ends of the spray pipe (242) are connected to rubber tubes (243), the spray pipe (242) is connected to a plurality of spray heads (245), and the spray heads (245) are provided with spray ports (246).

6. The greenhouse hot water circulation irrigation integrated device capable of storing and releasing water according to claim 1, characterized in that: The exteriors of the upper hot water storage tank (1) and the lower hot water storage tank (2) are both coated with black heat-absorbing paint; The upper hot water storage tank (1) and the lower hot water storage tank (2) are stacked and placed, and the stacking height is 50-60 cm. One side of the upper hot water storage tank (1) and the lower hot water storage tank (2) is curved.

7. The greenhouse hot water circulation irrigation integrated device capable of storing and releasing water according to claim 1, characterized in that: The heat release pipe (3) is buried under the soil layer, and is connected to the upper hot water storage tank (1), the lower hot water storage tank (2), the cold water tank (5) and the hot water tank (6) through pipelines to form a loop.

8. The greenhouse hot water circulation irrigation integrated device capable of storing and releasing water according to claim 1, characterized in that: The cold water pool (5) and the hot water pool (6) are located 50 cm below the ground near the entrance side of the greenhouse walkway, and the outside of the cold water pool (5) and the hot water pool (6) are both provided with thermal insulation materials.

9. The greenhouse hot water circulation irrigation integrated device capable of storing and releasing water according to claim 2, characterized in that: The check valve (21) can prevent water backflow and water hammer effect.

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