Floating type photovoltaic power generation steam-restraining irrigation system

Abstract

The utility model discloses a floating type photovoltaic power generation steam-restraining irrigation system which comprises a floating type submersible axial flow pump arranged in a reservoir, an overwater pump room, an overwater photovoltaic system, a drip irrigation system and a physical covering device, and the physical covering device is laid on the surface of a water body. The overwater pump room and the overwater photovoltaic system are both installed above the floating type base, a filtering device, a fertilizing device and a power distribution cabinet are arranged in the overwater pump room, and the floating type submersible axial flow pump, the filtering device, the fertilizing device and the drip irrigation system are sequentially communicated; the floating type submersible axial flow pump, the filtering device, the fertilizing device and the overwater photovoltaic system are all electrically connected with the power distribution cabinet. According to the technical scheme, land occupation can be reduced, electricity self-sufficiency is achieved, water surface evaporation is reduced, and cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water surface anti-evaporation technical field, especially, relate to a kind of floating photovoltaic power generation suppresses evaporation irrigation system. BACKGROUND

[0002] Water reservoir and field irrigation pump house have important significance for large-area irrigation, especially for farmland irrigation in arid areas, such as regulating water volume, balancing supply and demand, improving irrigation efficiency and stabilizing agricultural production, and are an important part of farmland water conservancy infrastructure. However, the traditional water reservoir and field irrigation pump house have the following problems: first, the construction and completion of the traditional field irrigation pump house permanently occupy farmland; second, the use of pump house equipment requires integration into the power grid, and the cost of electricity and the frequency of use change with crops and their irrigation system, while power transmission loss occurs; third, the large area of water surface of the water reservoir is exposed, which causes strong water evaporation loss in arid and semi-arid areas.

[0003] In summary, the existing water reservoir and field irrigation pump house have the problems of occupying farmland, high electricity cost and loss, and strong water evaporation loss. INVENTION CONTENTS

[0004] The utility model aims to provide a kind of floating photovoltaic power generation suppresses evaporation irrigation system to solve the problems existing in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides a kind of floating photovoltaic power generation suppresses evaporation irrigation system, including the floating submersible axial flow pump, water pump house, water photovoltaic system, drip irrigation system and physical covering device arranged in water reservoir, the physical covering device is laid on the surface of water body, the water pump house and the water photovoltaic system are all installed above floating base, the inside of the water pump house is provided with filter device, fertilization device and power distribution cabinet, the floating submersible axial flow pump, filter device, fertilization device and the drip irrigation system are sequentially communicated, and the floating submersible axial flow pump, filter device, fertilization device and the water photovoltaic system are all electrically connected with the power distribution cabinet.

[0006] Optionally, the water photovoltaic system includes a plurality of photovoltaic assemblies, each photovoltaic assembly includes a plurality of photovoltaic plates, and each photovoltaic plate is fixedly installed above the floating base by a steel frame.

[0007] Optionally, the photovoltaic assemblies are connected in parallel, and the photovoltaic plates in the same photovoltaic assembly are connected in series.

[0008] Optionally, the floating submersible axial flow pump comprises a submersible axial flow pump and a floating device, the floating device is hollow and is arranged to be half-submerged in water, the submersible axial flow pump is installed below the floating device, a detachable mesh cover is installed at the water inlet end of the submersible axial flow pump, and the water outlet end of the submersible axial flow pump is communicated with the filtering device.

[0009] Optionally, the filtering device comprises a sand and stone filter communicated in sequence, one end of the sand and stone filter is connected with the floating submersible axial flow pump, and the other end of the sand and stone filter is connected with the fertilizing device.

[0010] Optionally, a remote pressure gauge and a pressure relief valve are arranged on the connecting pipeline between the sand and stone filter and the floating submersible axial flow pump.

[0011] Optionally, the filtering device further comprises a mesh filter, one end of the mesh filter is connected with the sand and stone filter, and the other end of the mesh filter is connected with the fertilizing device.

[0012] Optionally, the fertilizing device comprises a fertilizing tank, a ball valve is arranged on the connecting pipeline between the fertilizing tank and the filtering device, a water meter and a pressure relief valve are arranged on the connecting pipeline between the discharge end of the fertilizing tank and the drip irrigation system.

[0013] The technical effects of the utility model are as follows:

[0014] The utility model discloses a pump house is transferred to the water storage pool to reduce the occupation of arable land, can avoid the construction difficulty caused by complex topography, reduce the influence on the agricultural production machine to enter the field.

[0015] The utility model discloses a water photovoltaic system realizes the self-sufficiency of pump house power consumption, and also can establish multiple photovoltaic systems with large-area water storage pool, and the residual electric quantity is incorporated into the power grid or is supplied to the surrounding residents and equipment.

[0016] The utility model discloses a water photovoltaic system, and the water storage pool water surface is physically covered to reduce the water surface evaporation loss and increase the utilization efficiency of irrigation water.

[0017] The utility model discloses a water pump house is established, and the photovoltaic cable laying distance is reduced to save the cost. ACCURACY

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawing needed to be used in the embodiments, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying the creative labor.

[0019] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments of this application, and their

[0020] Figure 1 Figure 1 is a schematic diagram of the overall structure of a floating photovoltaic power generation and irrigation system according to an embodiment of the present application;

[0021] Figure 2 Figure 2 is a schematic diagram of the pipeline connection and facility structure of a floating photovoltaic power generation and irrigation system according to an embodiment of the present application;

[0022] Figure 3 Figure 3 is a schematic diagram of a single photovoltaic unit structure in a floating photovoltaic power generation and irrigation system according to an embodiment of the present application.

[0023] Reference signs: 1, floating submersible axial flow pump; 11, floating device; 12, submersible axial flow pump; 13, water inlet and outlet pipeline; 2, water pump house; 21, sand and stone filter; 22, mesh filter; 23, fertilizer tank; 24, ball valve; 25, water meter; 26, pressure stabilizing and releasing valve; 27, fertilizer pump; 28, remote pressure gauge; 29, pressure releasing valve; 3, water photovoltaic system; 30, power distribution cabinet; 31, photovoltaic panel; 32, cable; 33, steel frame; 4, physical covering device; 5, floating base. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the related drawings, and several embodiments of the present application are given. However, the present application can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be a middle element, and when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are for illustrative purposes only.

[0027] The terms “include,” “including,” “have,” “contain,” etc., used in this article are all open-ended terms, meaning that they include but are not limited to.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] like Figures 1-3 As shown, this embodiment provides a floating photovoltaic power generation anti-evaporation irrigation system, including a floating submersible axial flow pump 1, a floating pump house 2, a floating photovoltaic system 3, a drip irrigation system, and a physical covering device 4, all installed in a water storage tank. The physical covering device 4 is laid on the water surface. The floating pump house 2 and the floating photovoltaic system 3 are both installed above a floating base 5. The floating pump house 2 is equipped with a filtration device, a fertilization device, and a power distribution cabinet 30. The floating submersible axial flow pump 1, the filtration device, the fertilization device, and the drip irrigation system are connected in sequence, and the floating submersible axial flow pump 1, the filtration device, the fertilization device, and the floating photovoltaic system 3 are all electrically connected to the power distribution cabinet 30.

[0031] This embodiment discloses a floating photovoltaic power generation anti-evaporation irrigation system, comprising a floating submersible axial flow pump 1, a floating pump house 2, a floating photovoltaic system 3, a water surface anti-evaporation covering device, a floating base 5, and various auxiliary structures. The floating submersible axial flow pump 1 is directly connected to the floating pump house 2 via an underwater pipe and connecting elbow. The pipe is located at the bottom of the floating base 5 for connection and reinforcement, and after silt filtration and fertilizer application, it is connected to the irrigation system. The floating pump house 2 is realized through the floating base 5. The photovoltaic panels 31 of the floating photovoltaic system 3 are connected in series within each group and in parallel within each group. Multiple sets of cables 32 of the floating photovoltaic system 3 are connected in parallel to the pump house, and an energy storage system and a photovoltaic inverter are installed within the pump house. The water surface anti-evaporation covering device is arranged on the water surface not obstructed by the floating base and photovoltaic modules. The floating base 5 is assembled from pontoons or floating boxes. This embodiment of the system, based on a traditional pump house, can achieve power self-sufficiency and anti-evaporation energy saving, and while saving ground space, it can also significantly reduce the consumption of cables 32.

[0032] This embodiment is based on the disadvantages of traditional water storage pool and field irrigation pump house. It proposes a comprehensive irrigation system combining water storage pool evaporation suppression, photovoltaic system power generation and water pump house 2. The system is based on floating base and transfers the field pump house to the water storage pool. The water pump house power supply is self-sufficient through the water photovoltaic system 3. The water photovoltaic system, physical covering device 4 and water pump station are used to realize physical covering of water body evaporation.

[0033] The system structure of this embodiment mainly includes floating submersible axial flow pump 1, water pump house 2, water photovoltaic system 3, physical covering device 4, floating base 5 and its auxiliary structure.

[0034] Figure 2 The floating submersible axial flow pump 1 is composed of a floating device 11 on the upper half-submerged water surface and a submersible axial flow pump 12 below. The floating device 11 is hollow inside and has the ability to normally float the submersible axial flow pump 12 in a stable working environment. The upper surface of 11 has a lifting handle to facilitate transportation, and the lower surface has a fixing ring for welding and fixing with the submersible axial flow pump 12. A detachable mesh cover is provided at the water suction port of the submersible axial flow pump 12. The water inlet and outlet pipes 13 of the water pump house are connected to the water outlet. It is worth emphasizing that due to the height difference between the submersible pump and the pump house, in order to strengthen the stability of the pipeline under operating conditions and reduce the cost of pipeline consumption, the water inlet and outlet pipes 13 of the pump house are horizontally fixed below the floating base 5, and a 120°-150° inclined transition is used near the pump house, and the upper part of the floating base 5 is fixed by a steel frame.

[0035] Figure 2 The water pump house 2 is based on the floating base 5 and floats on the water surface. The load-bearing capacity of the floating base 5 should be at least 1.5-2 times the total weight of the pump house and its facilities. The internal equipment has the basic functions and requirements of traditional pump houses. Among them, the input water flows through a sand and stone filter 21 for primary filtration and then enters a mesh filter 22 for secondary filtration. The front pipeline of the sand and stone filter 21 is equipped with a remote pressure gauge 28 and a pressure relief valve 29. If there is no special water quality requirement (such as drip irrigation), a primary filter can be used to simplify the pump house device. The outlet pipe is connected to a fertilizer tank 23 to add fertilizer. The fertilizer tank 23 is controlled by a ball valve 24 and is connected to a fertilizer pump 27 to increase the pressure of the fertilizer. After passing through the pressure stabilizing and pressure relief valve 26, the water flows out of the pump house and is connected to the drip irrigation system. The water and fertilizer flow is checked by a water meter 25.

[0036] Figure 1 And Figure 3 The water photovoltaic system is based on the floating base 5 and floats on the water surface. A stainless steel frame 33 is provided on the water photovoltaic system to fix the photovoltaic panel according to the size and number of the photovoltaic panel 31. The steel frame 33 is fixed to the floating base 5 by bolts. Figure 3The floating base 5 is laid in a "mouth" shape, and a single set of photovoltaic panel blocks 31 is arranged in a 4x4 manner. Five sets of stainless steel frames 33 are arranged along the long edges of the floating base 5 as the bearing and mounting base of the photovoltaic panel blocks 31. The spacing of the stainless steel frames 33 changes with the specifications of the photovoltaic panel blocks 31, so that the front and rear ends of a single set of photovoltaic panel blocks 31 are fixed to adjacent steel frames 33, respectively. The two ends of the steel frame 33 are bolted to the upper surface of the floating base 5. The photovoltaic assembly arranged in the above manner can greatly save the use of the floating base 5. The circuits of the single photovoltaic panel blocks 31 in the same set are connected in series, that is, the "positive" of adjacent blocks is connected to the "negative", and the "positive" of adjacent photovoltaic assemblies is connected to the "positive" and the "negative" is connected to the "negative" in different sets. It should be noted that the circuit should be adjusted reasonably according to the positions of the blocks 31, assemblies, systems, and pump houses. For example, as shown in Figs. 8 and 9, taking the two left photovoltaic assemblies as an example, the blocks 31 in the upper left assembly are arranged in the order of "positive-negative", "negative-positive", "positive-negative", and "negative-positive" from left to right, and the blocks 31 in the lower left assembly are arranged in the opposite order, forming an "S-shaped" series loop, and the two assemblies are connected in parallel in the middle. The cable 32 is connected to the central water pump house 2 as shown in Figs. 10 and 11. Figure 2 and Figure 3 Figure 1 and Figure 3

[0037] Figure 1 The small range in the middle circle shows the laying effect of the physical covering device 4 of the water body. It is worth mentioning that the physical covering device 4 of the floating photovoltaic power generation and irrigation system in this embodiment can be selected or not selected according to the actual use scene, and the coverage area ratio of the device can also be freely adjusted.

[0038] Figures 1-3 The floating base 5 shown in Fig. 12 adopts a common floating device on the market. The device adopts a cubic structure, and the length, width, and height are 50 cm, 50 cm, and 60 cm, respectively. The single bearing capacity reaches 60 kg, and adjacent devices are connected by mushroom nails. The floating base 5 for laying the water photovoltaic system 3 adopts a "mouth" shape arrangement, and the water pump house 2 is fully covered to improve the stability of the base. The floating base 5 can be selectively used to build a water platform on land leading to the water pump house 2.

[0039] This embodiment reduces the occupation of arable land by transferring the pump house to the reservoir, which can avoid the construction difficulties caused by complex terrain and reduce the impact on the entry of agricultural production machines into the field.

[0040] This embodiment realizes the self-sufficiency of the pump house power supply through the water photovoltaic system. In combination with a large-area reservoir, multiple photovoltaic systems can be established, and the remaining power can be connected to the power grid or supplied to surrounding residents and equipment.

[0041] ​​The embodiment reduces water evaporation loss and increases irrigation water utilization efficiency by physically covering the water surface of the reservoir through the floating base, the water pump house and the water photovoltaic system.

[0042] The embodiment saves cost by establishing the water pump house and reducing the photovoltaic cable laying distance.

[0043] In summary, the above-mentioned floating photovoltaic power generation and evaporation suppression irrigation system saves land area, fully plays the effect of water surface platform on water body ineffective evaporation suppression, plays the advantages of photovoltaic power generation, realizes self-provided power supply of the pump house and relieves regional power demand, reduces cable consumption in the process of connecting photovoltaic equipment, and greatly saves cost.

[0044] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A floating photovoltaic power generation and evaporation suppression irrigation system, characterized in that, The application relates to a water storage system, which comprises a floating submersible axial flow pump (1) arranged in a water storage pool, a water pump house (2), a water photovoltaic system (3), a drip irrigation system and a physical covering device (4) arranged on the surface of the water body, the water pump house (2) and the water photovoltaic system (3) are arranged above a floating base (5), the water pump house (2) is internally provided with a filtering device, a fertilizing device and a power distribution cabinet (30), the floating submersible axial flow pump (1), the filtering device, the fertilizing device and the drip irrigation system are sequentially connected, and the floating submersible axial flow pump (1), the filtering device, the fertilizing device and the water photovoltaic system (3) are electrically connected with the power distribution cabinet (30).

2. The floating photovoltaic power generation and evaporation-preventing irrigation system according to claim 1, characterized in that, The water photovoltaic system (3) comprises a plurality of photovoltaic assemblies, each photovoltaic assembly comprises a plurality of photovoltaic plates (31), and each photovoltaic plate (31) is fixedly arranged above the floating base (5) through a steel frame (33).

3. The floating photovoltaic power generation and evaporation-preventing irrigation system according to claim 2, characterized in that, The photovoltaic assemblies are connected in parallel, and the photovoltaic plates (31) in the same photovoltaic assembly are connected in series.

4. The floating photovoltaic power generation and evaporation-preventing irrigation system according to claim 1, characterized in that, The floating submersible axial flow pump (1) comprises a submersible axial flow pump (12) and a floating device (11), the floating device (11) is internally hollow and arranged to be half-submerged in the water surface, the submersible axial flow pump (12) is arranged below the floating device (11), a detachable mesh cover is arranged on the water inlet end of the submersible axial flow pump (12), and the water outlet end of the submersible axial flow pump (12) is connected with the filtering device.

5. The floating photovoltaic power generation and evaporation-preventing irrigation system according to claim 1, characterized in that, The filtering device comprises a sandstone filter (21) which is sequentially connected, one end of the sandstone filter (21) is connected with the floating submersible axial flow pump (1), and the other end of the sandstone filter (21) is connected with the fertilizing device.

6. The floating photovoltaic power generation and evaporation-preventing irrigation system according to claim 5, characterized in that, Remote pressure gauges (28) and pressure release valves (29) are arranged on the connecting pipelines between the sandstone filter (21) and the floating submersible axial flow pump (1).

7. The floating photovoltaic power generation and evaporation-preventing irrigation system according to claim 5, characterized in that, The filtering device further comprises a mesh filter (22), one end of the mesh filter (22) is connected with the sandstone filter (21), and the other end of the mesh filter (22) is connected with the fertilizing device.

8. The floating photovoltaic power generation and evaporation-preventing irrigation system according to claim 1, characterized in that, The fertilizing device comprises a fertilizing tank (23), ball valves (24) are arranged on the connecting pipelines between the fertilizing tank (23) and the filtering device, water meters (25) and pressure release valves (29) are arranged on the connecting pipelines between the discharge end of the fertilizing tank (23) and the drip irrigation system.

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