CN116171834A - Irrigation system and method for water storage in hills and mountains - Google Patents

Abstract

The present invention proposes a water storage irrigation system for mountains and hills. While storing irrigation water at different heights through multi-level reservoirs set at different altitudes, the electric energy of the new energy power station is stored in stages through water pumps. To meet the needs of irrigation and pumping, drip irrigation under the action of gravity can be realized during irrigation, and at the same time, the water flow between different storage tanks can be allocated through the hydroelectric generator to supplement and adjust the external electric energy, so that it can be used without additional energy input. Under the circumstances, it can solve the problem of irrigation water and energy consumption in hilly and mountainous areas, and at the same time, it can meet the demand for supply and demand regulation of the surrounding power grid.

Description

Water storage irrigation system and method for mountains and hills

technical field

The invention belongs to the field of water storage irrigation, and in particular relates to a water storage irrigation system and method for mountains and hills.

Background technique

Water is the material resource that human beings depend on for survival. Due to the influence of natural conditions and social factors, water resources in mountainous and hilly areas are poor, and regional and seasonal droughts and water shortages are serious. In recent years, droughts have spread and aggravated. , the shortage of water resources has increasingly become the main factor restricting the social and economic development of mountainous and hilly areas.

Mountains and hills lack a perfect water storage irrigation system. If large-scale reservoirs are built to irrigate mountains and hills, the investment, equipment operation, management and maintenance are high, and it is difficult to operate stably for a long time. At the same time, the vegetation in mountains and hills does not require much irrigation water. It is a problem to be solved to make full use of the poor terrain in the mountainous and hilly areas to achieve less investment, low energy consumption, low operation and maintenance costs and construction costs, and to irrigate the mountainous and hilly areas to maintain the ecological environment.

Contents of the invention

Aiming at the problems existing in the prior art, the present invention provides a water storage irrigation system and method for mountains and hills, which can improve the utilization rate of water resources in mountains and hills, efficiently irrigate mountains and hills, and at the same time realize energy storage and discharge, save resources, reduce cost.

The present invention is achieved through the following technical solutions:

A water storage irrigation system for mountains and hills, including multi-stage reservoirs arranged above the water sources in order from high to low along the terrain, and respectively arranged between adjacent reservoirs and between the reservoirs at the lowest altitude and the water source The storage and drainage pipelines, several irrigation water pipes connected to the storage and drainage pipelines, also include drip irrigation hoses, water pumps, hydroelectric generators and new energy power stations;

The new energy power station adopts a photovoltaic power station or a wind turbine, and the power generation end is connected to the water pump power supply end;

The storage and drainage pipelines are provided with pairs of water pumps and hydraulic generators, and the water pumps and hydraulic generators are located at the lower end of the storage and drainage pipelines;

The irrigation water delivery pipe is connected to the reservoir and the storage and drainage pipeline, and a plurality of drip irrigation hoses are arranged on the irrigation water delivery pipe.

Optionally, a plurality of the drip irrigation hoses are distributed in the irrigation area between the corresponding water reservoir and the lower reservoir.

Optionally, the power generation end of the new energy power station is also connected to an external power supply grid system.

Optionally, the power generation end of the hydroelectric generator is also connected to a water pump arranged on other storage and drainage pipelines.

Optionally, the paired hydro-generators and water pumps are multifunctional integrated machines, and the impellers of the hydro-generators and water pumps are the same set of impeller devices.

Optionally, the water depth selected for the reservoir is any value within the range of 1 meter to 100 meters.

Optionally, a control platform is also included, and the output terminals of the control platform are respectively connected to the control valves on the drip irrigation hose and the storage and drainage pipeline, and the control terminals of the water turbine generator and the water pump.

A water storage irrigation method for mountains and hills, comprising:

When storing water and energy, use a photovoltaic power station or a wind turbine to supply power to the water pump, and drive the water pump to pump the water from the water source to the low-altitude reservoir, and pump the water from the low-altitude reservoir to the high-altitude reservoir. In the reservoir, the electric energy of the new energy power station is stored in stages through multiple reservoirs at the same time; or the electric energy provided by the hydroelectric generator is used to store water and energy for the water pump;

When releasing water for irrigation, under the action of water gravity, the water in the reservoir is transported to the drip irrigation hose through the irrigation water pipe, and the vegetation is irrigated using the drip irrigation hose, and at the same time, the water potential energy of the water in the reservoir is used to push The hydro-generator enables the hydro-generator to allocate water flow between different reservoirs for irrigation of mountains and hills and external power supply. able.

Compared with the prior art, the present invention has the following beneficial technical effects:

The present invention proposes a water storage irrigation system for mountains and hills. While storing irrigation water at different heights by means of multi-level storage tanks set at different altitudes, the electric energy of the new energy power station is stored in stages through water pumps. To meet the needs of irrigation and pumping, drip irrigation under the action of gravity can be realized during irrigation, and at the same time, the water flow between different reservoirs can be allocated through the hydroelectric generator to supplement and adjust the external electric energy, so that it can be used without additional energy input. Under the circumstances, it can solve the problems of irrigation water and energy consumption in hilly and mountainous areas, and at the same time can meet the needs of the supply and demand regulation of the surrounding power grid. It has low energy consumption, low cost, resource saving, and has a wide range of application prospects.

Furthermore, by setting drip irrigation hoses corresponding to the irrigation area corresponding to the storage and drainage pipelines of each level of storage tank, irrigation treatment can be performed correspondingly according to the irrigation needs of different altitude areas.

Furthermore, through the power generation end of the new energy power station is also connected to the external power supply network system, the extra energy stored in the reservoir can be used for external power supply network, thereby improving social benefits.

Furthermore, the power generation end of the hydro-generator is also connected to the water pumps arranged on other storage and drainage pipelines, and the energy generated by the hydro-generator can also be provided to water pumps at different levels, so that the water pumps at other levels can pump water from the storage tank. , thereby reducing the demand for external energy.

Further, the paired hydro-generator and water pump are multifunctional integrated machines, the impellers of the hydro-generator and water pump are the same set of impeller devices, and the setting of the shared impeller reduces the cost of manufacturing and reduces the need for Space requirements, so as to be able to adapt to more geographical environments.

Further, the selected water depth of the reservoir is any value within the range of 1 meter to 100 meters, and setting the depth by itself can make the construction of the reservoir adapt to more terrains and improve the practicability of the system.

Further, the output terminals of the control platform are respectively connected to the control valves on the drip irrigation hose and the storage and drainage pipeline, as well as the control terminals of the hydroelectric generator and the water pump, and the operation of pumping energy storage and discharging water for power supply and irrigation is scheduled through the control platform. Improve the automation level of irrigation system.

Further, a water storage irrigation method for mountains and hills, including, when storing water and energy, using a photovoltaic power station or a wind turbine to supply power to the water pump, driving the water pump to pump water from the water source to a low-altitude reservoir, and The water in the low-altitude reservoir is pumped into the high-altitude reservoir, and the electric energy of the new energy power station is stored in stages through multiple reservoirs at the same time; or the electric energy provided by the hydroelectric generator is used to power the water pump water storage;

When releasing water for irrigation, under the action of water gravity, the water in the reservoir is transported to the drip irrigation hose through the irrigation water pipe, and the vegetation is irrigated using the drip irrigation hose, and at the same time, the water potential energy of the water in the reservoir is used to push The hydro-generator enables the hydro-generator to allocate water flow between different reservoirs for irrigation of mountains and hills and external power supply. able. Energy is transferred during the process of water storage and water release for irrigation. During the irrigation process, the stored energy can not only be called for the system itself, but also be used to meet the demand for external power supply, thereby improving the utilization rate of resources.

Description of drawings

Fig. 1 is a schematic structural diagram of a mountain and hill water storage irrigation system provided by an embodiment of the present invention.

In the figure: 1. Reservoir; 2. Storage and drainage pipeline; 3. Irrigation water pipe; 4. Drip irrigation hose; 5. Water pump; 6. Hydrogenerator; 7. Photovoltaic power station;

Detailed ways

The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.

In a specific embodiment of the present invention, please refer to Fig. 1, the present invention provides the following technical solutions: a water storage irrigation system for mountains and hills, including multi-stage storage tanks 1 arranged above the water source in sequence from high to low along the terrain , storage and drainage pipelines 2 respectively arranged between adjacent storage tanks 1 and between storage tanks 1 and water sources at the lowest altitude, several irrigation water delivery pipes 3 respectively connected to storage and drainage pipelines 2, and drip irrigation soft Pipe 4, water pump 5, hydroelectric generator 6 and new energy power station;

The new energy power station adopts a photovoltaic power station 7 or a wind turbine 8, and the power generation end is connected to the power supply end of the water pump 5;

A paired water pump 5 and a water turbine generator 6 are all arranged on the storage and drainage pipeline 2, and the water pump 5 and the water turbine generator 6 are all located at the lower end of the storage and drainage pipeline 2;

The irrigation water delivery pipe 3 is connected to the reservoir 1 and the storage and drainage pipeline 2 , and a plurality of drip irrigation hoses 4 are arranged on the irrigation water delivery pipe 3 .

Utilizing the geographical conditions of mountains and hills, a distributed irrigation system can be realized, and at the same time, there is no need to erect power transmission lines. In the complex terrain of mountains and hills, power can be generated locally, the construction period is short, and the response time for energy acquisition is short, which can respond to the present invention in a timely manner. Scheduling of the system; water pump 5 is used in the water storage condition to realize water from the low-altitude reservoir 1 to the high-altitude reservoir 1, thereby realizing water storage, reducing the investment cost of drip irrigation facilities in mountains and hills, and improving the uniformity of irrigation Degree, efficient use of limited water resources and labor saving. At the same time, different potential energies are stored for the storage pools 1 of different heights. When the power supply is large, the water potential energy is used to drive the hydroelectric generator to generate electricity. When the supply and demand of the power grid are unbalanced, the external power supply is peaked and frequency regulated.

In a specific embodiment of the present invention, please refer to Fig. 1, a plurality of drip irrigation hoses 4 are distributed in the irrigation area between the reservoir 1 and the lower reservoir 1 as the corresponding water source, to meet the irrigation water demand of plants .

In a specific embodiment of the present invention, please refer to Fig. 1, the power generation end of the new energy power station is also connected to an external power supply network system, and the water potential energy is used to drive the hydroelectric generator 6 to rotate during power generation, thereby driving the generator , to realize power generation, when the electricity demand is high, the water in the pumped storage reservoir is released, and the gravitational potential energy of the water is converted into electric energy, realizing peak-shaving and peak-shaving auxiliary services of the power grid, and improving energy utilization.

In a specific embodiment of the present invention, please refer to Fig. 1, the generating end of described hydroelectric generator 6 is also connected with the water pump 5 that is arranged on other storage and drainage pipelines 2, and the energy that hydroelectric generator 6 produces can also be provided to The water pump 5 makes the water pump 5 pump water for the reservoir 1, which can reduce the amount of development of surrounding photovoltaic and wind energy equipment, reduce costs, and reduce energy waste, which is conducive to sustainable development.

In a specific embodiment of the present invention, referring to Fig. 1 , the hydro-generator 6 and the water pump 5 are multifunctional integrated machines, and the impellers of the paired hydro-generator 6 and the impeller of the water pump 5 are the same set The impeller device, the water turbine generator 6 can adopt any one or combination of reaction type water turbine, impulse type water turbine, Francis water turbine, axial flow type water turbine, tubular flow type water turbine or diagonal flow type water turbine; the water pump 5 is a single-stage pump, Any one or a combination of multistage pumps, centrifugal pumps, axial flow pumps or mixed flow pumps, and the setting of a common impeller reduces manufacturing costs and space requirements, thereby adapting to more geographical environments.

In a specific embodiment of the present invention, please refer to Fig. 1, the water depth selected by the reservoir 1 is any value within the range of 1 meter to 100 meters, and the reservoir 1 adopts a naturally formed lake or an artificially excavated pond. Any one or combination, the construction of a small water storage tank 1 can adapt to the complex topography of various mountains and hills, expanding the practical scope of the present invention.

In a specific embodiment of the present invention, the output ends of the control platform are respectively connected to the control valves on the drip irrigation hose 4 and the storage and drainage pipeline 2, and the control ends of the water turbine generator 6 and the water pump 5, so that the system as a whole has It can automatically pump and release water to realize the function of precise drip irrigation. At the same time, it can also provide external power supply, save costs, expand functions, and have good economic benefits.

In a specific embodiment of the present invention, the present invention provides a water storage and irrigation method for mountains and hills, including, when storing water and energy, using a photovoltaic power station 7 or a wind power generator 8 to supply power to the water pump 5, driving the water pump 5 to transfer the water source pump the water in the low-altitude reservoir 1 to the high-altitude reservoir 1, and pass the electric energy of the new energy power station through multiple reservoirs 1 Simultaneously carry out hierarchical storage; or use the electric energy provided by the hydroelectric generator 6 to supply power to the water pump 5 to store water and store energy;

When releasing water for irrigation, under the action of water gravity, the water in the reservoir 1 is transported to the drip irrigation hose 4 through the irrigation water delivery pipe 3, and the vegetation is irrigated by using the drip irrigation hose 4, and at the same time, the water in the reservoir 1 is used to The water potential energy of the water pushes the hydro-generator 6, so that the hydro-generator 6 can distribute the water flow between different storage tanks 1, and perform mountain and hill irrigation and external power supply. The water pump 5 on the pipeline 2 supplies power to store water and store energy.

In a specific embodiment of the present invention, the energy stored in the storage tank 1 can provide power for the water storage process of the system, and the extra energy can be used to power the water pumps 5 on other irrigation water delivery pipes 3, so that the powered water pumps 5 pumps water for the corresponding storage tank 1, and recycles it to reduce waste of resources.

Claims (8)

1. The water storage and irrigation system for hills and hills in mountain areas is characterized by comprising multi-stage water reservoirs (1) which are sequentially arranged above a water source along the topography from high to low, water storage and drainage pipelines (2) which are respectively arranged between adjacent water reservoirs (1) and between the water reservoirs (1) at the lowest elevation and the water source, a plurality of irrigation water pipes (3) which are respectively connected to the water storage and drainage pipelines (2), drip irrigation hoses (4), water pumps (5), hydraulic generators (6) and a new energy power station;

the new energy power station adopts a photovoltaic power generation station (7) or a wind generating set (8), and a power generation end is connected with a power supply end of the water pump (5);

the water storage and drainage pipeline (2) is provided with a pair of water pumps (5) and water generators (6), and the water pumps (5) and the water generators (6) are positioned at the lower ends of the water storage and drainage pipeline (2);

the irrigation water delivery pipe (3) is connected to the reservoir (1) and the water storage and drainage pipeline (2), and a plurality of drip irrigation hoses (4) are arranged on the irrigation water delivery pipe (3).

2. A hilly and hilly water-storing irrigation system according to claim 1, characterized in that a plurality of the drip irrigation hoses (4) are distributed in the irrigation area between the reservoir (1) as the corresponding water source and the lower reservoir (1).

3. The hilly and water storage irrigation system as claimed in claim 1, wherein the power generation end of the new energy power station is further connected with an external power supply network system.

4. A hilly and hilly water storage irrigation system as claimed in claim 1, characterized in that the generating end of the hydraulic generator (6) is further connected with a water pump (5) arranged on the other water storage and drainage pipeline (2).

5. The mountain hills water storage irrigation system according to claim 1, wherein the paired hydraulic generators (6) and water pumps (5) are multifunctional integrated machines, and impellers of the hydraulic generators (6) and the water pumps (5) are the same set of impeller devices.

6. A hilly and hilly water-storing irrigation system according to claim 1, characterized in that the water depth of the water reservoir (1) is chosen to be any value in the range of 1 meter-100 meters.

7. The hilly and hilly water storage irrigation system according to claim 1, further comprising a control platform, wherein the output end of the control platform is connected with the drip irrigation hose (4) and the control valve on the water storage and drainage pipeline (2) respectively, and the control ends of the hydraulic generator (6) and the water pump (5).

8. A method for irrigation of hills and hills, comprising:

when the water is stored and stored, a photovoltaic power generation station (7) or a wind power generator set (8) is used for supplying power to the water pump (5), the water pump (5) is driven to pump water in a water source into a low-altitude water storage tank (1), the water in the low-altitude water storage tank (1) is pumped into a high-altitude water storage tank (1), and electric energy of a new energy power station is simultaneously stored in a grading manner through a plurality of water storage tanks (1); or the electric energy provided by the water wheel generator (6) is used for supplying power to the water pump (5) to store water and energy;

when the water is discharged for irrigation, water in the reservoir (1) is conveyed into the drip irrigation hose (4) through the irrigation water conveying pipe (3) under the action of gravity of the water, the drip irrigation hose (4) is used for irrigating vegetation, and meanwhile, the hydraulic generator (6) is pushed by water potential energy of the water in the reservoir (1) so that the hydraulic generator (6) can perform water flow allocation between different reservoirs (1), mountain land hills are irrigated and external power supply is performed, and meanwhile, the hydraulic generator (6) can supply power to the water pumps (5) on other water storage and drainage pipelines (2) to store water and store energy.

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