Solar greenhouse hot water storage and release circulating irrigation integrated system device

Abstract

The utility model provides a solar greenhouse hot water storage and release circulating irrigation integrated system device, and relates to the technical field of agricultural irrigation. Comprising a cold storage water tank, a heat storage water tank, a cold water tank water pump, a first check valve, a hot water tank water pump, a second check valve, a water pumping pipeline, a three-way valve, a lower-layer water pipeline, an upper-layer water pipeline, a heat storage and release lower-layer water tank, a heat storage and release upper-layer water tank, a connecting pipeline, a first electromagnetic valve, a heat release pipeline, an irrigation pipeline, a first water return pipeline, a second electromagnetic valve and a second water return pipeline. And a third electromagnetic valve and an external water supply pipeline. According to the solar greenhouse hot water storage and release circulating irrigation integrated system device, in the daytime, cold water in the cold water storage pool is pumped into the heat storage and release lower-layer water tank and the heat storage and release upper-layer water tank for heat storage, and after a certain temperature is reached, hot water flows back into the heat storage pool through the second water return pipeline for heat preservation; and hot water in the heat storage water tank flows into the heat release pipeline through the connecting pipeline to heat the crop area.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural irrigation, in particular to an integrated system device for storing and releasing hot water for circulation irrigation in a solar greenhouse. Background Art

[0002] Solar greenhouses are a unique type of greenhouse found in northern my country and a unique structural type for Chinese facility agriculture. Driven by factors such as the insufficient supply of vegetables in the winter market and the limited demand for heating energy in greenhouses, solar greenhouses are continuously developing towards higher efficiency and energy conservation. The north wall of the greenhouse acts as a thermal mass, passively storing and releasing heat. However, the large north-south span of a solar greenhouse and the presence of crops affect heat transfer, resulting in lower temperatures near the south side of the greenhouse and in the crop area, especially at night, which in turn affects crop growth. Furthermore, when irrigating plants in a solar greenhouse, most people use cold tap water directly. This, especially in winter, not only lowers the greenhouse temperature but also inhibits the growth and development of crop roots, resulting in reduced crop yields and even potentially causing chilling damage. Furthermore, traditional irrigation methods often waste water resources.

[0003] Therefore, in order to create the best environment for plant growth and take into account the needs of energy conservation, ecological environment protection and economic operating costs, it is of great significance to design a system device that can efficiently utilize solar energy for heat storage and save water resources for irrigation. Utility Model Content

[0004] The utility model provides an integrated system device for storing and releasing hot water for circulating irrigation in a solar greenhouse, which realizes the effects of efficiently utilizing solar energy for heat storage and saving water resources for irrigation proposed in the above background technology.

[0005] To achieve the above-mentioned object, the utility model provides the following technical solution: an integrated system device for hot water storage and release circulation irrigation in a solar greenhouse, comprising a cold water storage tank, a hot water storage tank, a cold water tank water pump, a No. 1 check valve, a hot water tank water pump, a No. 2 check valve, a water pumping pipe, a three-way valve, a lower water pipe, an upper water pipe, a lower water tank for heat storage and release, an upper water tank for heat storage and release, a connecting pipe, a No. 1 solenoid valve, a heat release pipe, an irrigation pipe, a No. 1 return water pipe, a No. 2 solenoid valve, a No. 2 return water pipe, a No. 3 solenoid valve, and an external water supply pipe;

[0006] The hot water storage tank is provided on one side of the cold water storage tank, and the cold water tank water pump is provided at the bottom of the cold water storage tank, the water outlet end of the cold water tank water pump is communicated with the water inlet end of the No. 1 check valve, the water outlet end of the No. 1 check valve is communicated with the water inlet end 1 of the pump water pipe, the hot water tank water pump is provided at the bottom of the hot water storage tank, the water outlet end of the hot water tank water pump is communicated with the water inlet end of the No. 2 check valve, the water outlet end of the No. 2 check valve is communicated with the water inlet end 2 of the pump water pipe, the water outlet end 1 of the pump water pipe is communicated with the water inlet end of the three-way valve, the water outlet end 1 of the three-way valve is communicated with the water inlet end of the lower water pipe, the water outlet end of the lower water pipe is communicated with the water inlet end of the lower water tank for heat storage and release, the water outlet end 2 of the three-way valve is communicated with the water inlet end of the upper water pipe, and the water outlet end of the upper water pipe is communicated with the inlet end of the upper water tank for heat storage and release;

[0007] The water outlet of the heat storage and release lower water tank is communicated with the water inlet of the connecting pipe, the water outlet of the connecting pipe is communicated with the water inlet of the No. 1 solenoid valve, the water outlet of the No. 1 solenoid valve is communicated with the water inlet of the heat release pipe, the upper end of the heat release pipe is provided with the irrigation pipe, the heat release pipe is connected to the irrigation pipe, the water outlet of the heat release pipe is communicated with the water inlet of the No. 1 return pipe, the water outlet of the No. 1 return pipe is communicated with the water inlet of the No. 2 solenoid valve, and the water outlet of the No. 2 solenoid valve is communicated with the water inlet of the cold water storage tank;

[0008] The second water outlet end of the water pump pipe is connected to the water inlet end of the No. 2 return water pipe, the water outlet end of the No. 2 return water pipe is connected to the water inlet end of the No. 3 solenoid valve, the water outlet end of the No. 3 solenoid valve is connected to the water inlet end of the hot water storage tank, and an external water supply pipe is provided on the side of the cold water storage tank.

[0009] Preferably, the No. 1 check valve and the No. 2 check valve are arranged in parallel.

[0010] Preferably, the upper heat storage and release water tank is stacked and placed on the upper end of the lower heat storage and release water tank.

[0011] Preferably, the outer layers of the upper heat storage and release water tank and the lower heat storage and release water tank are both painted with black paint.

[0012] Preferably, the side surface of the heat storage and release lower water tank is inclined at an angle of 30° to 45° to the horizontal plane, and the inclined side surfaces of the heat storage and release upper water tank and the heat storage and release lower water tank have a smooth transition.

[0013] Preferably, the heat release pipe is composed of a plurality of arranged vertical pipes, both ends of the vertical pipes of the plurality of heat release pipes are connected by two horizontal pipes respectively, and the vertical pipes are connected in parallel, and the heat release pipes are connected to form a loop.

[0014] Preferably, the heat release pipe is buried under the ridge of the crops in the greenhouse, and the vertical pipe of the heat release pipe is arranged along the ridge direction.

[0015] Preferably, the irrigation pipe is arranged in parallel at the upper end of the vertical pipe of the heat release pipe.

[0016] Preferably, the irrigation pipe is flush with the highest surface of the ridge, and drip irrigation holes are evenly opened on the irrigation pipe.

[0017] Preferably, a heat-insulating material is provided on the outside of the heat storage tank.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] During the day, the cold water in the cold water storage tank is pumped into the lower heat storage and release water tank and the upper heat storage and release water tank through the water pump pipe for heat storage. After reaching a certain temperature, the hot water is returned to the hot water storage tank through the No. 2 return pipe for insulation. This process is repeated many times to ensure that there is sufficient water required for heat release at night. At night, the hot water in the hot water storage tank is pumped into the lower heat storage and release water tank and the upper heat storage and release water tank through the pumping pipe. The hot water flows into the heat release pipe through the connecting pipe to heat the crop area. When the heat of the hot water is consumed, the water flows into the cold water storage tank through the No. 1 return pipe. When it is necessary to irrigate the crops, the hot water stored in the hot water storage tank during the day is pumped into the lower heat storage and release water tank and the upper heat storage and release water tank again. After the hot water is placed in the two water tanks for a period of time, the temperature drops. When the water temperature in the water tank reaches a temperature suitable for the growth of crop roots, the three-way valve is adjusted to the state where the lower heat storage and release water tank and the upper heat storage and release water tank are connected. The warm water is pressed into the irrigation pipe by atmospheric pressure and irrigated through the drip irrigation outlet. The remaining water flows into the cold water storage tank through the No. 1 return pipe to realize water circulation. In this way, the device can not only use solar energy to increase the temperature in the solar greenhouse, but also realize warm water irrigation of crops and full utilization of water resources, which is beneficial to crop growth, improves crop yield, and has a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the integrated system for storing and releasing hot water for circulating irrigation in a solar greenhouse according to the present invention;

[0021] Figure 2 This is a side view of the integrated system device for storing and releasing hot water and circulating irrigation in a solar greenhouse according to the present invention;

[0022] Figure 3 This is a schematic diagram of the laying of heat release pipes and irrigation pipes in the integrated system for storing and releasing hot water and circulating irrigation in a solar greenhouse of the present invention.

[0023] Numbers in the figure: 1. Cold water storage tank; 2. Hot water storage tank; 3. Cold water tank pump; 4. No. 1 check valve; 5. Hot water tank pump; 6. No. 2 check valve; 7. Pumping pipe; 8. Three-way valve; 9. Lower water pipe; 10. Upper water pipe; 11. Lower water tank for heat storage and release; 12. Upper water tank for heat storage and release; 13. Connecting pipe; 14. No. 1 solenoid valve; 15. Heat release pipe; 16. Irrigation pipe; 17. Drip irrigation outlet; 18. No. 1 return pipe; 19. No. 2 solenoid valve; 20. No. 2 return pipe; 21. No. 3 solenoid valve; 22. External water supply pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] The utility model provides a solar greenhouse hot water storage and release circulation irrigation integrated system device, such as Figure 1 and Figure 2 As shown, it includes a cold water storage tank 1, a hot water storage tank 2, a cold water tank water pump 3, a No. 1 check valve 4, a hot water tank water pump 5, a No. 2 check valve 6, a water pumping pipe 7, a three-way valve 8, a lower water pipe 9, an upper water pipe 10, a heat storage and release lower water tank 11, a heat storage and release upper water tank 12, a connecting pipe 13, a No. 1 solenoid valve 14, a heat release pipe 15, an irrigation pipe 16, a No. 1 return water pipe 18, a No. 2 solenoid valve 19, a No. 2 return water pipe 20, a No. 3 solenoid valve 21 and an external water supply pipe 22.

[0026] A hot water storage tank 2 is provided on one side of the cold water storage tank 1. A cold water tank water pump 3 is provided at the bottom of the cold water storage tank 1. The water outlet of the cold water tank water pump 3 is connected to the water inlet of the No. 1 check valve 4. The water outlet of the No. 1 check valve 4 is connected to the water inlet of the pump pipe 7. A hot water tank water pump 5 is provided at the bottom of the hot water storage tank 2. The water outlet of the hot water tank water pump 5 is connected to the water inlet of the No. 2 check valve 6. The water outlet of the No. 2 check valve 6 is connected to the water pump pipe 7. The second water inlet end of 7 is connected, the first water outlet end of the water pump pipe 7 is connected with the water inlet end of the three-way valve 8, the first water outlet end of the three-way valve 8 is connected with the water inlet end of the lower water pipe 9, the water outlet end of the lower water pipe 9 is connected with the water inlet end of the lower water tank 11 for storing and releasing heat, the second water outlet end of the three-way valve 8 is connected with the water inlet end of the upper water pipe 10, and the water outlet end of the upper water pipe 10 is connected with the inlet end of the upper water tank 12 for storing and releasing heat.

[0027] The second water outlet end of the water pump pipe 7 is connected to the water inlet end of the No. 2 return water pipe 20, the water outlet end of the No. 2 return water pipe 20 is connected to the water inlet end of the No. 3 solenoid valve 21, the water outlet end of the No. 3 solenoid valve 21 is connected to the water inlet end of the hot water storage tank 2, and an external water supply pipe 22 is provided on the side of the cold water storage tank 1, and cold water can be filled into the cold water storage tank 1 through the external water supply pipe 22.

[0028] The No. 1 check valve 4 and the No. 2 check valve 6 are arranged in parallel.

[0029] The No. 1 check valve 4 and the No. 2 check valve 6 are both one-way valves that only allow water to flow out but not to flow back.

[0030] During the day, the cold water tank pump 3 is started, and the cold water in the cold water storage tank 1 is pumped into the water pumping pipe 7 through the No. 1 check valve 4, and enters the heat storage and release lower water tank 11 and the heat storage and release upper water tank 12 through the water outlet end 1 and the water outlet end 2 of the three-way valve 8 for heat storage. The hot water after heat storage flows back to the water pumping pipe 7 through the water outlet end of the three-way valve 8. The No. 3 solenoid valve 21 is opened, and the hot water cannot pass through the No. 1 check valve 4 and the No. 2 check valve 6, and can only pass through the No. 2 return pipe 20 on the water pumping pipe 7. The No. 2 return pipe 20 is a branch pipe of the water pumping pipe 7. The hot water enters the hot water storage tank 2 through the No. 2 return pipe 20 for storage.

[0031] like Figure 1 and Figure 3 As shown, the water outlet of the heat storage and release lower water tank 11 is connected to the water inlet of the connecting pipe 13, the water outlet of the connecting pipe 13 is connected to the water inlet of the No. 1 solenoid valve 14, the water outlet of the No. 1 solenoid valve 14 is connected to the water inlet of the heat release pipe 15, the upper end of the heat release pipe 15 is provided with an irrigation pipe 16, the heat release pipe 15 is connected to the irrigation pipe 16, the heat release pipe 15 is composed of a plurality of vertical pipes arranged in an array, the ends of the vertical pipes of the plurality of heat release pipes 15 are respectively connected by two horizontal pipes, and the vertical pipes are connected in parallel. A loop is formed, with the heat release pipe 15 buried under the ridge of the crop in the greenhouse, and the vertical pipe of the heat release pipe 15 is arranged along the ridge direction. The irrigation pipe 16 is arranged in parallel with the upper end of the vertical pipe of the heat release pipe 15, and the irrigation pipe 16 is flush with the highest surface of the ridge. Drip irrigation holes 17 are evenly opened on the irrigation pipe 16. The heat release pipe 15 and the irrigation pipe 16 are designed to be consistent with the growth trend of the crop. Since there are two rows of crops per ridge, designing them between the two rows of crops does not hinder crop growth and can evenly heat and irrigate the crop area. The outlet end of the heat release pipe 15 is connected to the inlet end of the No. 1 return pipe 18, and the outlet end of the No. 1 return pipe 18 is connected to the inlet end of the No. 2 solenoid valve 19, and the outlet end of the No. 2 solenoid valve 19 is connected to the inlet end of the cold water storage tank 1.

[0032] At night, start the hot water tank pump 5, and pump the hot water in the hot water storage tank 2 into the pump pipe 7 through the No. 2 check valve 6, and enter the lower heat storage and release water tank 11 and the upper heat storage and release water tank 12 through the water outlet end 1 and the water outlet end 2 of the three-way valve 8. Open the No. 1 solenoid valve 14, and the hot water enters the horizontal pipe of the heat release pipe 15 through the connecting pipe 13, and then flows into the vertical pipes arranged in parallel. The vertical pipe at the lower end of the ridge heats the crops, which is beneficial to the growth and development of the crop roots and increases the crop yield. After the heat of the hot water is consumed, open the No. 2 solenoid valve 19, and the water flows into the cold water storage tank 1 through the No. 1 return pipe 18.

[0033] like Figure 1 and Figure 2 As shown, the upper heat storage and release water tank 12 is stacked on the upper end of the lower heat storage and release water tank 11. The height of the upper heat storage and release water tank 12 is higher than the height of the irrigation pipe 16. The outer layers of the upper heat storage and release water tank 12 and the lower heat storage and release water tank 11 are painted with black paint. One side of the lower heat storage and release water tank 11 and the upper heat storage and release water tank 12 has an arc and fits into the front frame of the greenhouse. The other side of the lower heat storage and release water tank 11 is inclined at 30°-45° to the horizontal plane, which increases the area of sunlight exposure and improves the heat storage efficiency. The inclined sides of the upper heat storage and release water tank 12 and the lower heat storage and release water tank 11 have a smooth transition. The outside of the heat storage tank 2 is provided with insulation material. The insulation layer can prevent heat loss and better store hot water.

[0034] Adopting this utility model, such as Figure 1 and Figure 2As shown, during the day, the cold water in the cold water storage tank 1 is pumped into the lower heat storage and release water tank 11 and the upper heat storage and release water tank 12 through the water pumping pipe 7 for heat storage. After reaching a certain temperature, the hot water is returned to the hot water storage tank 2 through the No. 2 return water pipe 20 for heat preservation. This process is repeated many times to ensure that there is enough water required for heat release at night. At night, the hot water in the hot water storage tank 2 is pumped into the lower heat storage and release water tank 11 and the upper heat storage and release water tank 12 through the water pumping pipe 7. The hot water flows into the heat release pipe 15 through the connecting pipe 13 to heat the crop area. When the heat of the hot water is consumed, the water flows into the cold water storage tank 1 through the No. 1 return water pipe 18. When it is necessary to irrigate the crops, the hot water stored in the hot water storage tank 2 during the day is pumped into the lower heat storage and release water tank 11 and the upper heat storage and release water tank 12 again. After the hot water is placed in the two water tanks for a period of time, the temperature drops. When the water tanks When the water temperature reaches a temperature suitable for the growth of crop roots, the three-way valve 8 is adjusted to a state where the lower heat storage and release water tank 11 and the upper heat storage and release water tank 12 are connected, and the warm water is pressed into the irrigation pipe 16 by atmospheric pressure, and the crops are irrigated through the drip irrigation outlet 17. The remaining water flows into the cold water storage tank 1 through the No. 1 return water pipe 18 to realize water circulation, so that the device can not only use solar energy to increase the temperature in the solar greenhouse, but also realize warm water irrigation of crops and full utilization of water resources, which is beneficial to crop growth, increases crop yield, and has a good use effect.

[0035] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with this field, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A solar greenhouse hot water storage and release circulation irrigation integrated system device, characterized in that: It comprises a cold water storage tank (1), a hot water storage tank (2), a cold water tank water pump (3), a No. 1 check valve (4), a hot water tank water pump (5), a No. 2 check valve (6), a water pumping pipe (7), a three-way valve (8), a lower water pipe (9), an upper water pipe (10), a heat storage and release lower water tank (11), a heat storage and release upper water tank (12), a connecting pipe (13), a No. 1 solenoid valve (14), a heat release pipe (15), an irrigation pipe (16), a No. 1 return water pipe (18), a No. 2 solenoid valve (19), a No. 2 return water pipe (20), a No. 3 solenoid valve (21) and an external water supply pipe (22); The hot water storage tank (2) is provided on one side of the cold water storage tank (1), the cold water tank water pump (3) is provided at the bottom of the cold water storage tank (1), the water outlet of the cold water tank water pump (3) is communicated with the water inlet of the No. 1 check valve (4), the water outlet of the No. 1 check valve (4) is communicated with the water inlet of the pump pipe (7), the hot water tank water pump (5) is provided at the bottom of the hot water storage tank (2), the water outlet of the hot water tank water pump (5) is communicated with the water inlet of the No. 2 check valve (6), the water outlet of the No. 2 check valve (6) is communicated with the water outlet of the No. 2 check valve (6). The first water outlet end of the water pump pipe (7) is in communication with the water inlet end of the three-way valve (8), the first water outlet end of the three-way valve (8) is in communication with the water inlet end of the lower water pipe (9), the water outlet end of the lower water pipe (9) is in communication with the water inlet end of the heat storage and release lower water tank (11), the second water outlet end of the three-way valve (8) is in communication with the water inlet end of the upper water pipe (10), and the water outlet end of the upper water pipe (10) is in communication with the inlet end of the heat storage and release upper water tank (12); The water outlet of the heat storage and release lower water tank (11) is in communication with the water inlet of the connecting pipe (13), the water outlet of the connecting pipe (13) is in communication with the water inlet of the No. 1 solenoid valve (14), the water outlet of the No. 1 solenoid valve (14) is in communication with the water inlet of the heat release pipe (15), the upper end of the heat release pipe (15) is provided with the irrigation pipe (16), the heat release pipe (15) is in communication with the irrigation pipe (16), the water outlet of the heat release pipe (15) is in communication with the water inlet of the No. 1 return pipe (18), the water outlet of the No. 1 return pipe (18) is in communication with the water inlet of the No. 2 solenoid valve (19), the water outlet of the No. 2 solenoid valve (19) is in communication with the water inlet of the cold storage water tank (1); The second water outlet end of the water pump pipe (7) is in communication with the water inlet end of the second water return pipe (20), the water outlet end of the second water return pipe (20) is in communication with the water inlet end of the third solenoid valve (21), the water outlet end of the third solenoid valve (21) is in communication with the water inlet end of the hot water storage tank (2), and an external water supply pipe (22) is provided on the side of the cold water storage tank (1).

2. The solar greenhouse hot water storage and release circulation irrigation integrated system device according to claim 1, characterized in that: The first check valve (4) and the second check valve (6) are arranged in parallel.

3. The integrated system for hot water storage and release and circulating irrigation in a solar greenhouse according to claim 1, characterized in that: The heat storage and release upper water tank (12) is stacked and placed on the upper end of the heat storage and release lower water tank (11).

4. The integrated system for hot water storage and release and circulating irrigation in a solar greenhouse according to claim 3, characterized in that: The outer layers of the heat storage and release upper water tank (12) and the heat storage and release lower water tank (11) are both coated with black paint.

5. The integrated system for hot water storage and release and circulating irrigation in a solar greenhouse according to claim 4, characterized in that: The inclination of the side surface of the heat storage and release lower water tank (11) to the horizontal plane is 30°-45°, and the inclined side surfaces of the heat storage and release upper water tank (12) and the heat storage and release lower water tank (11) transition smoothly.

6. The integrated system for hot water storage and release and circulating irrigation in a solar greenhouse according to claim 1, characterized in that: The heat release pipe (15) is composed of a plurality of vertical pipes arranged in an array, and the two ends of the vertical pipes of the plurality of heat release pipes (15) are respectively connected through two horizontal pipes, and the vertical pipes are connected in parallel, and the heat release pipes (15) are connected to form a loop.

7. The integrated system for hot water storage and release and circulating irrigation in a solar greenhouse according to claim 6, characterized in that: The heat release pipe (15) is buried under the ridge of the crops in the greenhouse, and the vertical pipe of the heat release pipe (15) is arranged along the ridge direction.

8. The integrated system for hot water storage and release and circulating irrigation in a solar greenhouse according to claim 7, characterized in that: The irrigation pipe (16) is arranged in parallel at the upper end of the vertical pipe of the heat release pipe (15).

9. The integrated system for hot water storage and release and circulating irrigation in a solar greenhouse according to claim 8, characterized in that: The irrigation pipe (16) is flush with the highest surface of the ridge, and drip irrigation holes (17) are evenly opened on the irrigation pipe (16).

10. The integrated system for hot water storage and release and circulating irrigation in a solar greenhouse according to claim 1, characterized in that: The outer side of the heat storage tank (2) is provided with heat insulation material.

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