Kitchen oil-water separation device based on solar photovoltaic photo-thermal system

Abstract

The invention relates to the technical field of kitchen oil-water separation devices and renewable energy sources, and discloses a kitchen oil-water separation device based on a solar photovoltaic photo-thermal system, which comprises an oil-water separation device box body, the solar photovoltaic photo-thermal system and an oil storage tank, the oil-water separation device box body is divided into a first separation area, a second separation area and a third separation area, a food residue filter screen is arranged at the top of the first separation area, a scraper is connected above the filter screen, a spiral coil and an electric heating rod are arranged inside the filter screen, the spiral coil is externally connected with a cold and heat flow pipeline, and the electric heating rod is externally connected with a storage battery. The second separation area is provided with an oil discharge pipe which is connected with the oil storage tank, the third separation area is provided with a drainage pipe, and the tail end of the drainage pipe is connected with an activated carbon pipe. A solar photovoltaic photo-thermal technology is combined, a membrane separation and activated carbon adsorption two-stage purification process is introduced on the basis of physical separation, and the device is suitable for low-temperature working condition operation and areas away from power grid coverage.

Description

Technical Field

[0001] The present invention relates to the intersection of kitchen oil-water separation devices and renewable energy technologies, and specifically to a kitchen oil-water separation device based on a solar photovoltaic and thermal system, which is particularly suitable for efficient and energy-saving oil-water separation in kitchen waste treatment. Background Art

[0002] With traditional energy sources unsustainable and global warming intensifying, accelerating the development and utilization of new energy sources is a key path to promoting green, low-carbon development. As an abundant clean energy source, solar energy plays a vital role in this energy transition due to its widespread distribution, strong sustainability, and environmental friendliness.

[0003] Cooking oil-water separation is a critical step in restaurant waste management. Its core goal is to efficiently separate oil from wastewater, preventing environmental pollution and enabling resource recycling. Existing technologies use electric heating, bubble generators, specialized membrane materials, or simple mechanical separation techniques to achieve this. However, these technologies suffer from high energy consumption, the output of high-quality energy as low-quality energy, significant carbon emissions, and high operating costs.

[0004] Although a few studies have attempted to incorporate solar energy into food waste oil-water separation devices, existing solutions are often limited to single-photovoltaic applications, failing to fully leverage the synergistic advantages of integrated photovoltaic and solar-thermal systems. Furthermore, traditional devices lack integration in oil-level monitoring and automation, making them inadequate for the flexible demands of food waste treatment. Therefore, there is an urgent need to develop a device that can achieve both energy self-sufficiency and optimized separation efficiency to promote the green development of food waste oil-water separation. Summary of the Invention

[0005] In order to overcome the above-mentioned background technical problems, the present invention provides a kitchen oil-water separation device based on the full utilization of solar photovoltaic and thermal energy, so as to improve the oil-water separation efficiency and achieve energy conservation and emission reduction.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A kitchen oil-water separation device based on a solar photovoltaic thermal system includes an amorphous silicon solar cell, an oil-water separation device housing, and an oil storage tank. The amorphous silicon solar cell is connected to a maximum power controller via a circuit, the maximum power controller is connected to a battery via a circuit, and the amorphous silicon solar cell is connected to a hot flow pipe and a cold flow pipe. A filter is provided on the upper left side of the oil-water separation device housing, a scraper is provided above the filter, a drain pipe is provided in the middle right side of the oil-water separation device housing, partitions 1 and 3 are provided above the oil-water separation device housing, and partition 2 is provided below. The three partitions divide the oil-water separation device housing into a first separation area, a second separation area, and a third separation area. A spiral coil and an electric heating rod are provided in the first separation area; an oil drain pipe is provided in the middle of the second separation area, and a ball valve is provided inside the oil drain pipe.

[0008] Furthermore, the hot flow pipe is connected to the upper end of the spiral coil, the cold flow pipe is connected to the lower end of the spiral coil, and the cold flow pipe is connected to the water storage tank and the centrifugal pump.

[0009] Furthermore, the battery is connected to the electric heating rod through an electric circuit.

[0010] Furthermore, an oil filter membrane is provided inside the oil drain pipe, an oil level sensor is provided inside the oil storage tank, and an activated carbon tube is provided at the end of the drain pipe.

[0011] Furthermore, the heat flow pipe is equipped with a solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 This is the structural diagram of the kitchen oil-water separation device based on the solar photovoltaic thermal system

[0014] Figure 2 This is a structural diagram of a kitchen oil-water separation device.

[0015] Figure 3 This is a front cross-sectional view of a kitchen oil-water separation device.

[0016] Figure 4 It is a right side cross-sectional view of the kitchen oil-water separation device.

[0017] In the figure: 1. Oil-water separation device casing; 4. First separation area; 5. Second separation area; 6. Third separation area; 11. Scraper; 12. Filter; 13. Spiral coil; 14. Electric heating rod; 15. Partition one; 16. Partition two; 17. Partition three; 18. Drain pipe; 19. Activated carbon tube; 21. Amorphous silicon solar cell; 22. Circuit; 23. Maximum power controller; 24. Battery; 25. Solenoid valve; 26. Hot flow pipe; 27. Cold flow pipe; 28. Water tank; 29. Centrifugal pump; 31. Oil storage tank; 32. Oil drain pipe; 33. Oil filter membrane; 34. Ball valve; 35. Oil level sensor. DETAILED DESCRIPTION

[0018] A solar photovoltaic and thermal energy-based kitchen oil-water separation device provided in this embodiment includes an oil-water separation device housing 2, an amorphous silicon solar cell 21 for supplying energy to the housing, and an oil storage tank 31 for collecting kitchen waste oil. The amorphous silicon solar cell 21 and the oil-water separation device housing 2 are interconnected through a hot flow pipe 26, a cold flow pipe 27, and a circuit 22, and the oil-water separation device housing 2 and the oil storage tank 31 are connected through an oil drain pipe 32.

[0019] Furthermore, the heat energy received by the amorphous silicon solar cell 21 is transferred to the oil-water separation device housing 2 through the heat flow pipe 26 and the spiral coil 13 .

[0020] Furthermore, the electric energy received by the amorphous silicon solar cell 21 is stored in the battery 24 through the circuit 22 and the maximum power controller 23 , and is used to supply power to the electric heating rod 14 through the circuit 22 in severe cold weather and at night.

[0021] Furthermore, the bottom outlet of the spiral coil 13 enters the water storage tank 28 through the cold flow pipe 27 for storage, and completes the circulation under the action of the centrifugal pump 29.

[0022] Furthermore, the oil-water separation device housing 2 is divided into a first separation area 4, a second separation area 5, and a third separation area 6; the first separation area 4 and the second separation area 5 are separated by a partition 15; the second separation area 5 and the third separation area 6 are separated by a partition 3 17.

[0023] Furthermore, a filter screen 12 for filtering food residues in cooking oil and water and a scraper 11 for removing food residues are provided on the top of the first separation area 4 .

[0024] Furthermore, a spiral coil 13 and an electric heating rod 14 are provided in the second separation area 5; during the day, the spiral coil is used to heat the kitchen oil-water separation box 2, and at night, the electric heating rod 14 is used to power the kitchen oil-water separation box 2.

[0025] Furthermore, the second separation area 5 is provided with an oil drain pipe 32 to discharge the waste oil into the oil storage tank 31, and a partition 16 is provided in the middle of the second separation area 5 to promote physical separation.

[0026] Furthermore, the third separation area 6 is provided with a drain pipe 18 to drain away the waste water, and the end of the drain pipe 18 is connected to a section of activated carbon tube 19 to filter the waste water.

[0027] Furthermore, the end of the drain pipe 18 is placed inside the oil storage tank 31, and an oil filter membrane 33 is provided at the inlet of the oil storage tank 31 to promote secondary separation of oil and water.

[0028] Furthermore, an oil level sensor 35 is provided inside the oil storage tank 31 to display the oil level.

[0029] Working principle:

[0030] Due to the different densities of oil and water, the liquid level of oil is higher than that of water at the same pressure. Heating the oil-water mixture will reduce the viscosity of high-viscosity oil, enhance fluidity, and accelerate the coalescence and floating process of oil droplets.

[0031] The present invention has the following advantages:

[0032] A kitchen oil-water separation device based on a solar photovoltaic thermal system utilizes the hot flow pipe and cold flow pipe in the solar photovoltaic thermal system to connect with the spiral coil in the oil-water separation device box. The amorphous silicon solar cell in the solar photovoltaic thermal system is connected to the maximum power controller and the battery through the circuit, and is connected to the electric heating rod in the oil-water separation device box through the battery using the circuit to provide energy for oil and water heating, realize solar power generation and thermal energy synchronous capture, and use the battery to store energy to meet the energy demand of the separation device in severe cold weather and at night.

[0033] The use of spiral coil heat exchange makes the separation device compact and at the same time utilizes secondary flow to improve the heat transfer coefficient.

[0034] In the oil-water separation device box, the oil phase floating path is extended by partition one and partition three, the water flow velocity is stabilized by partition two, and oil filter membranes and activated carbon tubes are installed in the oil discharge pipe and drainage pipe to realize a two-stage purification process, which greatly reduces the subsequent sewage treatment load.

[0035] An oil level sensor is installed in the oil storage tank to realize intelligent monitoring of the oil level and timely recovery of oil to improve the quality of oil during resource utilization.

[0036] The present invention is described through preferred embodiments. Those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention.

Claims

1. A kitchen oil-water separation device based on a solar photovoltaic and thermal system, comprising an amorphous silicon solar cell (21), an oil-water separation device housing (1), and an oil storage tank (31), wherein the amorphous silicon solar cell (21) is connected to a maximum power controller (23) via a circuit (22), the maximum power controller (23) is connected to a storage battery (24) via a circuit (22), and the amorphous silicon solar cell (21) is connected to a hot flow pipe (26) and a cold flow pipe (27); a filter screen (12) is provided on the upper left side of the oil-water separation device housing (1), and a filter screen (12) is provided above the filter screen. A scraper (11) is provided, a drain pipe (18) is provided in the middle of the right side of the oil-water separation device housing, a partition plate 1 (15) and a partition plate 3 (17) are provided above the oil-water separation device housing, and a partition plate 2 (16) is provided below the oil-water separation device housing, the three partition plates divide the oil-water separation device housing into a first separation area (4), a second separation area (5), and a third separation area (6), the first separation area (4) is provided with a spiral coil (13) and an electric heating rod (14); an oil drain pipe (32) is provided in the middle of the second separation area (5), and a ball valve (34) is provided in the oil drain pipe (32).

2. The cooking oil-water separation device based on a solar photovoltaic thermal system according to claim 1 is characterized in that: Amorphous silicon solar cells (21) are used to collect solar energy to provide heat energy for the oil-water separation system, and the steps are as follows: The collected heat energy is used to heat the circulating water, which then enters the upper end of the spiral coil (13) through the hot flow pipe (26) to conduct heat and provide energy to the first separation area (4) in the box body, and then enters the cold flow pipe (27) through the lower end of the spiral coil (13). The cold flow pipe (27) is connected to the water storage tank (28) to store water, and finally a centrifugal pump (29) is connected to the cold flow pipe (27) to pump water to complete the working medium circulation.

3. The cooking oil-water separation device based on a solar photovoltaic thermal system according to claim 1, characterized in that: Amorphous silicon solar cells (21) are used to collect solar energy to provide electrical energy for the oil-water separation system, and the steps are as follows: The electric energy generated by the amorphous silicon solar cell (21) is tracked to its maximum power by using a maximum power controller (23), and is transmitted to a storage battery (24) for storage through a circuit (22). The stored electric energy is then used to power an electric heating rod (14) that is also located in a first separation area (4) and connected to the circuit (22).

4. The cooking oil-water separation device based on a solar photovoltaic thermal system according to claim 1, characterized in that: The steps for oil-water separation are as follows: The oil-water mixture is filtered through the scraper (11) to remove solid residues and enter the first separation area (4) for initial stratification by heating. It then enters the second separation area (5) through the partition plate (15) for gravity stratification. The water flow rate is stabilized by the partition plate (16). Most of the upper grease is discharged through the oil drain pipe (32), ball valve (34) and oil filter membrane (33) into the oil storage tank (31) for storage. The storage status is monitored by the oil level sensor. The partition plate (17) blocks the oil phase while promoting the water phase to enter the third separation area (6). Then, most of the separated water is filtered and discharged through the drain pipe (18) and the activated carbon tube (19).

5. The kitchen oil-water separation device based on a solar photovoltaic thermal system according to claim 4, characterized in that: The oil-water separation device housing (1) is sequentially installed with partition plate 1 (15), partition plate 2 (16), and partition plate 3 (17). The three partition plates divide the oil-water separation device housing (1) into three major separation areas. In the first separation area (4), the oil-water mixture is heated by using a spiral coil (13) and an electric heating rod (14). In the second separation area (5), the upper layer of oil is discharged into an oil storage tank (31) for storage by utilizing the characteristic of significant stratification after heating. In the third separation area (6), the separated water phase is discharged through a drain pipe (18).

6. The kitchen oil-water separation device based on a solar photovoltaic thermal system according to claim 1, characterized in that: An oil level sensor (35) is attached to the oil storage tank (31), which transmits oil level information in real time through a display on the surface of the tank.

7. The cooking oil-water separation device based on a solar photovoltaic thermal system according to claim 2, characterized in that: The heat flow pipe (26) is provided with a solenoid valve (25) to precisely control the heat flow rate, thereby maintaining the temperature of the oil-water mixture in the oil-water separation device housing (1) relatively stable.

8. The kitchen oil-water separation device based on a solar photovoltaic thermal system according to claim 4, characterized in that: An oil filter membrane (33) is installed in the oil drain pipe (32), and an activated carbon tube (19) is installed at the end of the drain pipe (18) to further improve the separation efficiency and purify the water quality.

9. The cooking oil-water separation device based on a solar photovoltaic thermal system according to claim 5, characterized in that: The oil-water separation box is provided with three-stage partitions, partition one (15) and partition three (17) are located at the upper part for extending the oil phase floating path, and partition two (16) is located at the lower part for stabilizing the water flow rate.

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