Photovoltaic power generation water taking device

Abstract

The application discloses a photovoltaic power generation water taking device and relates to the technical field of water taking devices. The application provides a photovoltaic power generation water taking device, a shell, an outer wall of which is provided with a photovoltaic module, the shell being provided with a water taking device; a water pump configured in a water well, the water pump and the water taking device being communicated with each other through a water pumping pipe, wherein the water pump is configured to be powered by the photovoltaic module and / or a municipal power grid, when the water pump maintains a working state, the water pump can deliver well water to the water taking device through the water pumping pipe, when the water pump switches the working state, water in the water pumping pipe can flow back to the water well, so that the inside of the water pumping pipe will not be frozen and block the water pumping pipe.

Description

Technical Field

[0001] This application relates to the field of water intake device technology, and in particular to a photovoltaic power generation water intake device. Background Technology

[0002] In high-altitude, cold-climate agricultural and pastoral areas with sparse populations, drinking water for most households typically comes from wells or groundwater. Winter temperatures in these areas can drop to -20 to -30 degrees Celsius, making it extremely easy for pipes, faucets, and water tanks connected to wells to freeze or even break, preventing farmers and herders from accessing water normally. Power grids in these areas may also experience instability, and running power lines outdoors is inconvenient. However, solar power resources are abundant. Utility Model Content

[0003] The main purpose of this application is to provide a photovoltaic power generation water intake device, which aims to solve the technical problem in the prior art where the water intake system is set in a low-temperature outdoor environment, and the water remaining in the water intake system is easy to freeze, which leads to the water tank freezing and damage or the inability to extract water normally.

[0004] To achieve the above objectives, this application provides a photovoltaic power generation water intake device, comprising a housing, the outer wall of which is provided with photovoltaic modules, and the housing is provided with water intake equipment; A water pump is disposed in a water well, and the water pump is connected to the water intake equipment via a pumping pipe; The water pump is configured to be powered by photovoltaic modules and / or the municipal power grid. When the water pump is in operation, it can transport well water to the water intake device through the pumping pipe. When the water pump switches its operating state, the water in the pumping pipe can flow back into the well so that the inside of the pumping pipe will not freeze and block the pumping pipe.

[0005] Optionally, the housing includes a heat-insulating cavity and a water intake area separated from each other. The water intake device is configured in the water intake area. A portion of the water pumping pipe is located inside the well, and another portion is located inside the heat-insulating cavity. The heat-insulating cavity is equipped with a heat storage or heating device to maintain the ambient temperature inside the heat-insulating cavity within a preset range.

[0006] Optionally, a water storage tank is also provided inside the insulation cavity. The water storage tank has an inlet end and an outlet end. The inlet end is connected to a water pumping pipe, and the outlet end is connected to a water intake device.

[0007] Optionally, the water pump pipe between the water pump and the water storage tank includes a first section and a second section. The first section is vertically arranged, and the second section connects the first section and the water storage tank. The second section gradually slopes downward along the direction away from the water storage tank from the first section.

[0008] Optionally, the water intake area is provided with a drainage trough located below the water intake device, the drainage trough is connected to a drainage pipe, and the outlet end of the drainage pipe is located outside the water intake area.

[0009] Optionally, the water intake area is further provided with a backwater platform, the platform height of which is higher than the height of the drainage trough.

[0010] Optionally, one side wall of the insulation cavity is provided with a movable door.

[0011] Optionally, an energy storage device is also provided inside the insulation cavity. The energy storage device is configured to be powered by photovoltaic modules and / or the municipal power grid. The photovoltaic modules, the municipal power grid, and the energy storage device can all power the heat storage or heating equipment and the water pump.

[0012] Optionally, the well is further provided with at least one sealing pipe extending vertically, and the sealing pipe is provided with a heating element, which can heat the well water around the pumping pipe to prevent the pumping pipe from freezing.

[0013] Optionally, the housing has an inclined top wall, and the photovoltaic module is disposed on the top wall and at least one outer side wall.

[0014] The beneficial effects that this application can achieve are: This application proposes a photovoltaic power generation water extraction device. By installing photovoltaic modules on the casing, the device generates electricity to power the water pump, making reasonable use of solar energy and reducing the impact of grid distribution or power instability on the water extraction system. By keeping the water pump in operation, it can transport well water to the water extraction equipment through the pumping pipe, allowing users to extract water at the extraction equipment. After the user finishes extracting water, the water pump switches to a different operating state and stops working. The water in the pumping pipe flows back under the action of gravity, preventing water accumulation in the pumping pipe. Even if the ambient temperature is below zero, the absence of water accumulation in the pumping pipe prevents the formation of a water column, thus avoiding the possibility of water freezing and clogging the pumping pipe. Even if there is some water adhering to the inner wall of the pumping pipe, freezing will not cause blockage. This ensures that well water can be smoothly transported to the water extraction equipment for the next extraction, making it suitable for cold environments in high-altitude and cold regions. Attached Figure Description

[0015] Figure 1 This is a cross-sectional structural schematic diagram of the photovoltaic power generation water intake device according to an embodiment of this application; Figure 2 This is another cross-sectional structural schematic diagram of the photovoltaic power generation water intake device according to an embodiment of this application; Figure 3This is a schematic diagram of the three-dimensional structure of the shell according to an embodiment of this application; Figure 4 This is a side view of the housing structure according to an embodiment of this application.

[0016] The numbers on the map are: 10-Shell, 11-Insulation cavity, 12-Water intake area, 13-Photovoltaic module, 20-Water intake equipment, 30-Water pump, 40-Water extraction pipe, 41-First section, 42-Second section, 50-Water storage tank, 60-Drainage trough, 61-Drainage pipe, 70-Backwater platform, 80-Heat storage or heating equipment, 90-Sealing pipe, 100-Moving door.

[0017] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0022] Example 1 Reference Figure 1 , Figure 3 and Figure 4 The first embodiment of this application provides a photovoltaic power generation water intake device, comprising: The housing 10 has a photovoltaic module 13 installed on its outer wall and a water intake device 20 installed on the housing 10. A water pump 30 is installed inside a water well, and the water pump 30 is connected to the water intake device 20 through a water pumping pipe 40; The water pump 30 is configured to be powered by the photovoltaic module 13 and / or the municipal power grid. When the water pump 30 is in operation, it can transport well water to the water intake device 20 through the pumping pipe 40. When the water pump 30 switches to a different operating state, the water in the pumping pipe 40 can flow back into the well so that the inside of the pumping pipe 40 will not freeze and block the pumping pipe 40.

[0023] In this embodiment, the water intake device 20 can be a water intake pipe, and it can also be installed at an angle to ensure that when the water pump 30 is not in operation, the well water in the water intake pipe can still move under the action of gravity and will not accumulate in the water intake pipe for a long time. The water pump 30 is a submersible pump 30, which is submerged in the well water when installed in the well. When the water pump 30 is in the maintenance operation state, the water pump 30 pumps well water into the water intake device 20 through the water pumping pipe 40, and the user takes well water from the water intake device 20. After taking water, the water pump 30 switches its operating state, for example, the water pump 30 stops working, or the water pump 30 briefly reverses to use gravity to empty the water remaining in the water pumping pipe 40. It should be noted that the water pump 30 needs to be equipped with a reversible motor to reverse its operation. The well water in the pumping pipe 40 is returned to the well. Because the water in the pumping pipe 40 is discharged, a water column will not form within it. Even if water droplets adhere to the inner wall of the pumping pipe 40, freezing will not occur when the ambient temperature is below zero degrees Celsius, preventing the formation of a water column that could block the pipe. This ensures that the pumping pipe 40 can smoothly transport well water for the next pumping operation. It should be noted that the outer wall of the pumping pipe 40 can also be covered with insulation material, such as polyethylene (PE) foam, polyurethane (PU) foam, or aerogel felt, to protect it. Similarly, the outer wall of the pumping pipe 40 can also be wrapped with a heating cable. The heating cable can be powered by the photovoltaic module 13 and / or the municipal power grid. When freezing occurs inside the pumping pipe 40, the presence of freezing can be determined by a temperature sensor or based on experience. The heating cable can then be used to heat the pumping pipe 40, accelerating the melting of the frozen well water. It should be noted that by first allowing the water in the pumping pipe 40 to flow back into the well water, most of the well water in the pumping pipe can be drained. Even if freezing occurs, only a small amount of well water will freeze. Compared to a large amount of water freezing in the pumping pipe 40, the frozen water in the pumping pipe 40 can be thawed more quickly, allowing it to be put into pumping use more quickly.

[0024] It should be noted that the photovoltaic modules 13 installed on the outer wall of the casing 10, such as monocrystalline / polycrystalline silicon solar panels, convert solar energy into direct current (DC). This DC power is then used to charge the battery via an MPPT controller. The inverter converts the DC power stored in the battery into alternating current (AC) power to supply electrical appliances. The output power of the photovoltaic modules 13 must match the rated power of the water pump 30, and a battery bank is configured to store excess energy for continuous power supply during periods of insufficient sunlight, such as at night or on cloudy or rainy days. In areas with municipal power grid access, the system can automatically switch to municipal power when the output power of the photovoltaic modules 13 is insufficient or the battery charge falls below a threshold. Seamless switching between mains and photovoltaic power is achieved through electrical components such as circuit breakers and contactors, ensuring continuous operation of the water pump 30. When the photovoltaic modules 13 and the municipal power grid are in grid-connected mode, simultaneous supply of photovoltaic and mains power is supported, with priority given to photovoltaic power and supplemented by mains power to maximize the utilization of renewable energy and reduce mains power consumption. A power sensor monitors the output power of the photovoltaic modules 13 and the battery charge in real time. When sunlight is sufficient and the battery charge is ≥80%, the system automatically disconnects from the mains power and supplies power solely to the photovoltaic system. When the battery charge drops below 30% or the photovoltaic output power is less than 50% of the rated power of the water pump 30, the controller triggers mains power connection, and the photovoltaic module 13 continues charging. If the photovoltaic system malfunctions, such as damaged photovoltaic panels or controller failure, the system immediately switches to mains power and alerts the user for repair via an alarm device. Users can manually select the power supply mode via the control panel or mobile app, such as forcing mains power to save battery life, or setting timed switching rules, such as using mains power at night.

[0025] In this embodiment, the housing 10 is not insulated. Its main functions are to support the photovoltaic module 13, provide a shaded area for the water intake device 20, offering some protection, shielding users from sunlight, rain, and snow, improving the user experience, and housing equipment such as the MPPT controller, battery, inverter, and distribution box. The water intake device 20 can be a water intake pipe, meaning that well water is directly drawn to the water intake device 20 and discharged through the water pump 30.

[0026] Example 2 Reference Figures 1-4 As an optional implementation, this embodiment provides a specific structure of the housing 10, including: the housing 10 includes a heat preservation cavity 11 and a water intake area 12 that are separated from each other, the water intake device 20 is disposed in the water intake area 12, a part of the water pumping pipe 40 is located in the water well and another part is located in the heat preservation cavity 11, and a heat storage or heating device 80 is provided in the heat preservation cavity 11 to maintain the ambient temperature in the heat preservation cavity 11 within a preset range.

[0027] Specifically, the insulation cavity 11 is in a relatively sealed state, while the water intake area 12 is an open area to facilitate water intake by the user. The water intake area 12 can be a part inside the shell 10 or a part of the shell 10 protruding outward. A heat storage or heating device 80 is installed inside the insulation cavity 11. The heat storage or heating device 80 includes a housing containing a heat storage medium and an electric heating element for heating the heat storage medium. The electric heating element heats the heat storage medium inside the housing, raising the overall temperature of the housing. The housing is made of a thermally conductive material, which raises the temperature of the air inside the insulation cavity 11. The heat storage medium can be thermally conductive oil, water, or heat storage bricks. Similarly, the heat storage or heating device 80 can also be an electric heater, a fan heater, etc. By keeping the temperature inside the insulation cavity 11 within a certain range, the water in the portion of the water pump 40 located inside the insulation cavity 11 will not freeze when not in use. This ensures that the water pump 40 is always ready for use and also prevents water from freezing and expanding, which could damage the pipes or equipment.

[0028] It should be noted that multiple high-precision temperature sensors can be installed at different locations within the insulation cavity 11, such as one each at the top, middle, and bottom. This allows for comprehensive monitoring of the temperature distribution within the insulation cavity 11, preventing localized temperature anomalies from affecting the overall temperature control effect. For example, the top sensor can monitor the temperature of areas where hot air accumulates, while the bottom sensor can reflect the conditions of potentially low-temperature areas near the ground. The temperature sensors transmit the monitored temperature data to the central control system in real time. The central control system analyzes and judges the data based on a preset temperature range, such as 5℃-15℃, which can be adjusted according to actual needs. When any temperature sensor detects that the temperature of the insulation cavity 11 is lower than the lower limit of the preset range, such as 5℃, the central control system immediately issues a command to activate the heat storage or heating equipment 80. If the photovoltaic module 13 generates sufficient power to meet the power requirements of the heating equipment, the photovoltaic module 13 will be used as the primary power source; if the photovoltaic module 13 generates insufficient power, the system will automatically switch to municipal power grid supply to ensure that the heating equipment operates promptly and raises the temperature of the insulation cavity 11. When the temperature of the insulation chamber 11 reaches the upper limit of the preset range, such as 15°C, the central control system controls the heat storage or heating equipment 80 to reduce power or stop operation to avoid overheating and energy waste. Simultaneously, the temperature continues to be monitored in real time, and the corresponding equipment is restarted once the temperature shows a downward trend.

[0029] Optionally, a water storage tank 50 is also provided inside the insulation cavity 11. The water storage tank 50 has an inlet end and an outlet end. The inlet end is connected to the pumping pipe 40, and the outlet end is connected to the water intake device 20. It should be further noted that the shell 10 can also be insulated, that is, it can be enclosed to form a relatively sealed insulation cavity. The side walls of the shell 10 are made of insulation material. After the shell 10 is insulated, the water storage tank 50 can be set inside the insulation cavity 11. The water storage tank 50 can be used to store the pumped well water. Alternatively, the water storage tank 50 can be omitted from the insulation cavity 11, and the pumped well water can be directly transported to the water intake device 20.

[0030] Specifically, a water storage tank 50 is installed to store water drawn from the water source by the water pump 30. An insulation structure is installed on the water storage tank 50 and the outer wall of the pipes. This insulation structure can be made of polyurethane insulation material, polyethylene insulation material, silicate composite insulation material, etc. By installing the insulation structure on the water storage tank 50 and the pipes, the water storage tank 50 and the pipes are protected, preventing them from freezing and damaging.

[0031] Optionally, the water pump 40 between the water pump 30 and the water storage tank 50 includes a first section 41 and a second section 42. The first section 41 is set vertically, and the second section 42 connects the first section 41 and the water storage tank 50. The second section 42 gradually slopes downward along the direction away from the water storage tank 50 from the first section 41.

[0032] Specifically, the connection between the first segment 41 and the second segment 42 forms a certain angle. By setting the first segment 41 vertically and the second segment 42 at an angle, it is to ensure that the water in the pumping pipe 40 can flow back by gravity.

[0033] Example 3 As an optional implementation, this embodiment provides a drainage trough 60 structure, including: a drainage trough 60 located below the water intake device 20 is provided in the water intake area 12, the drainage trough 60 is connected to a drainage pipe 61, and the water outlet end of the drainage pipe 61 is located outside the water intake area 12.

[0034] Optionally, the water intake area 12 is also equipped with a backwater platform 70, the platform height of which is higher than the height of the drainage trough 60.

[0035] Specifically, by setting a drainage trough 60 below the water dispensing device 20, when a user takes water from the device, the drainage trough 60 can guide the overflowing clean water from the device 20 or the water overflowing from the container holding the clean water, preventing water from accumulating in the water dispensing area 12 for a long time and affecting the environment of the water dispensing area 12. By setting a back-water platform 70, the height of which is higher than the drainage trough 60, it is easier for the user to stand up while carrying water on their back. By setting a drainage hole on the back-water platform 70, the water accumulated on the back-water platform 70 can be guided into the drainage trough 60 for drainage in a timely manner.

[0036] Optionally, one of the side walls of the insulation cavity 11 is provided with a movable door 100.

[0037] Specifically, by setting up an access door 100, it is possible for personnel to enter and exit the insulation chamber 11 to inspect and maintain equipment such as the water storage tank 50 and the battery inside the insulation chamber 11.

[0038] Optionally, an energy storage device is also installed inside the insulation cavity 11. The energy storage device is configured to be powered by the photovoltaic module 13 and / or the municipal power grid. The photovoltaic module 13, the municipal power grid and the energy storage device can all power the thermal storage or heating device 80 and the water pump 30.

[0039] Specifically, the energy storage device is a battery. The photovoltaic module 13 is equipped with an MPPT controller and an inverter. The MPPT controller regulates the output voltage / current of the photovoltaic module 13 to match the battery pack or load requirements, preventing overcharging / over-discharging. The inverter converts the photovoltaic DC power into AC power to supply AC loads such as the water pump 30. The inverter is preferably a hybrid inverter, integrating the MPPT controller, inverter, and mains power switching functions, supporting the charging and discharging management of the energy storage battery. When sunlight is sufficient, the photovoltaic module 13 directly supplies power to the water pump 30 through the MPPT controller, with excess energy stored in the battery. When sunlight is insufficient, i.e., the photovoltaic output power is less than the power required by the water pump 30, it automatically replenishes power from the battery.

[0040] Optionally, the well is also provided with at least one sealing pipe 90 extending vertically. The sealing pipe 90 is equipped with a heating element, which can heat the well water around the pumping pipe 40 so that the outside of the pumping pipe 40 does not freeze.

[0041] Specifically, at least one sealed pipe 90 is installed in the water well. The sealed pipe 90 is equipped with a heating element, which can be a self-regulating / unregulating heating cable, heating wire, heating rod, or other related heating components. The heating element can be directly connected to a power supply system such as mains power or solar photovoltaic panels. A temperature sensor can also be installed inside the sealed pipe 90. The heating element can be connected to a temperature control box to control the temperature of the sealed pipe 90 within a set value, preventing damage to the heating device due to excessive temperature. The material of the sealed pipe 90 can be steel, PE, PVC, or other plastics. B. By releasing heat through the sealing pipe 90, the well water around the pumping pipe 40 is prevented from freezing, thus ensuring that the water pump 30 can draw water normally at any time.

[0042] Optionally, the housing 10 has an inclined top wall, and the photovoltaic module 13 is configured on the top wall and at least one outer side wall.

[0043] Specifically, by setting an inclined top wall at the top of the housing 10, the photovoltaic module 13 is installed at an inclined angle, which is more conducive to its receiving sunlight. By adding photovoltaic modules 13 to the side wall of the housing 10, the number of photovoltaic modules 13 used in series can be increased or decreased according to actual usage needs.

[0044] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A photovoltaic power generation water intake device, characterized in that, include: A housing, the outer wall of which is provided with photovoltaic modules, and the housing is provided with a water intake device; A water pump is disposed in a water well, and the water pump is connected to the water intake equipment via a pumping pipe; The water pump is configured to be powered by photovoltaic modules and / or the municipal power grid. When the water pump is in operation, it can transport well water to the water intake device through the pumping pipe. When the water pump switches its operating state, the water in the pumping pipe can flow back into the well so that the inside of the pumping pipe will not freeze and block the pumping pipe.

2. The photovoltaic power generation water intake device as described in claim 1, characterized in that, The housing has an inclined top wall, on which the photovoltaic module is disposed.

3. The photovoltaic power generation water intake device as described in claim 1, characterized in that, The housing has a water intake area, and the water outlet of the water intake device is configured in the water intake area.

4. The photovoltaic power generation water intake device as described in claim 3, characterized in that, The housing is also provided with a drainage trough located below the water intake device, the drainage trough is connected to a drainage pipe, and the outlet end of the drainage pipe is located outside the water intake area.

5. The photovoltaic power generation water intake device as described in claim 4, characterized in that, The water intake area is also equipped with a backwater platform, the platform height of which is higher than the height of the drainage trough.

6. The photovoltaic power generation water intake device as described in claim 3, characterized in that, The housing has an insulation cavity separated from the water intake area. The water intake device is located in the water intake area. Part of the water pumping pipe is located in the well and another part is located in the insulation cavity. The insulation cavity is equipped with heat storage or heating equipment to raise the ambient temperature inside the insulation cavity.

7. The photovoltaic power generation water intake device as described in claim 6, characterized in that, The insulation cavity is also equipped with a water storage tank, which has an inlet and an outlet. The inlet is connected to a water pumping pipe, and the outlet is connected to a water intake device.

8. The photovoltaic power generation water intake device as described in claim 7, characterized in that, The water pump pipe between the water pump and the water storage tank includes a first section and a second section. The first section is vertically arranged, and the second section connects the first section and the water storage tank. The second section gradually slopes downward along the direction away from the water storage tank from the first section.

9. The photovoltaic power generation water intake device as described in claim 6, characterized in that, The insulation cavity is also equipped with an energy storage device, which is configured to be powered by a photovoltaic module. Both the photovoltaic module and the energy storage device can power the heat storage or heating device and the water pump.

10. The photovoltaic power generation water intake device as described in claim 1, characterized in that, The well is also equipped with at least one sealing pipe extending vertically. The sealing pipe is equipped with a heating element, which can heat the well water around the pumping pipe to prevent the pumping pipe from freezing.

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