Automatic drainage device for standing buffer oil tank
By using an automatic drainage device for a static buffer tank during waste oil distillation, and by utilizing sensors and solenoid valves to automatically control the separation of water and oil, the problem of impurities and moisture in the recovered oil affecting the stability of the equipment is solved, and low-energy continuous oil-water separation is achieved.
Patent Information
- Application Number
- CN202423289307.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-31
AI Technical Summary
During the distillation process of recycled oils such as waste engine oil, tire pyrolysis oil, and plastic pyrolysis oil, the raw materials contain a lot of impurities and moisture, which affects the stability of the equipment and increases fuel consumption.
Design an automatic drainage device for a static buffer oil tank. Utilize first and second oil-water separation sensors to monitor the oil-water interface in real time, and automatically control the discharge of water and oil through a solenoid valve to ensure effective oil-water separation and reduce human intervention.
It enables continuous operation of oil-water separation without frequent manual intervention, reduces the energy consumption of distillation equipment, simplifies the operation process, and lowers costs.
Smart Images

Figure CN223546891U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of waste oil treatment equipment, specifically an automatic drainage device for a static buffer oil tank. Background Technology
[0002] In the distillation process of recycled oils such as waste engine oil, tire pyrolysis oil, and plastic pyrolysis oil, there are problems such as the presence of a large number of impurities and moisture in the raw materials. Due to the special nature of the raw materials, the oil obtained from the recycling and transportation of waste engine oil, waste tire pyrolysis, and waste plastic pyrolysis cannot avoid the presence of moisture and mechanical impurities.
[0003] The subsequent distillation and separation process can affect the long-term operational stability of the equipment and increase fuel consumption. Utility Model Content
[0004] The purpose of this invention is to provide a settling tank system capable of removing water and impurities from recovered oil during continuous distillation. This system does not affect the quality of the oil, allows for continuous operation of the distillation equipment without frequent human intervention, ensures effective oil-water separation, and reduces energy consumption. It features a simple structure, convenient manufacturing, low cost, and easy operation.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic drainage device for a static buffer oil tank, comprising an oil inlet valve and a static buffer oil tank, wherein the oil inlet valve is located at the top of the static buffer oil tank for oil to enter;
[0006] The bottom of the static buffer oil tank is equipped with a drain solenoid valve, the side wall of the static buffer oil tank is equipped with a first oil-water separation sensor, the side wall of the static buffer oil tank is also equipped with an oil discharge solenoid valve, and the bottom of the static buffer oil tank is equipped with a second oil-water separation sensor.
[0007] Preferably, the drain solenoid valve is used to discharge the separated water and solid sediments, and the oil discharge solenoid valve is located on the side wall of the static buffer oil tank and above the first oil-water separation sensor for oil output.
[0008] Preferably, the second oil-water separation sensor is used to provide feedback on the venting signal.
[0009] Compared with the prior art, the beneficial effects of this utility model are:
[0010] This invention, by incorporating a first oil-water separation sensor and a second oil-water separation sensor, enables real-time monitoring of the oil-water separation interface and feedback on water drainage. It allows for continuous operation of the distillation equipment without frequent human intervention, ensuring effective oil-water separation and reducing energy consumption. The design is simple, easy to manufacture, low in cost, and convenient to operate. Attached Figure Description
[0011] Figure 1 This is a front view structural diagram of the present invention.
[0012] In the diagram: 1. Oil inlet valve; 2. Static buffer oil tank; 3. Oil; 4. First oil-water separation sensor; 5. Water and solid sediment; 6. Drain solenoid valve; 7. Second oil-water separation sensor; 8. Oil drain solenoid valve. Detailed Implementation
[0013] 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.
[0014] Please see Figure 1 One embodiment provided by this utility model:
[0015] An automatic drainage device for a static buffer oil tank includes an oil inlet valve 1 and a static buffer oil tank 2. The oil inlet valve 1 is located on the top of the static buffer oil tank 2 and is used for the entry of oil 3.
[0016] A drain solenoid valve 6 is installed at the bottom of the settling buffer oil tank 2. A first oil-water separation sensor 4 is installed on the side wall of the settling buffer oil tank 2. An oil discharge solenoid valve 8 is also installed on the side wall of the settling buffer oil tank 2. A second oil-water separation sensor 7 is installed at the bottom of the settling buffer oil tank 2. The drain solenoid valve 6 is used to discharge the separated water and solid sediment 5. The oil discharge solenoid valve 8 is located on the side wall of the settling buffer oil tank 2 and is higher than the first oil-water separation sensor. It is used for oil output. The second oil-water separation sensor 7 is used to provide feedback on the emptying signal.
[0017] Working Principle: In the fully continuous distillation process, for recycled oils with high moisture and impurity content, such as waste engine oil, tire pyrolysis oil, and plastic pyrolysis oil, a settling buffer device is set up before the oil enters the distillation kettle for distillation. The oil containing moisture and impurities enters the settling buffer tank 2 through the oil inlet valve 1. Due to the different densities of oil, water, and solids, the oil is settling in the settling buffer tank 2 for >24 hours, achieving water-oil interface separation. Water settles and remains at the bottom of the tank, while oil 3 remains at the top. As the water level in the tank rises, when... When the water level line contacts the first oil-water separation sensor 4, the first oil-water separation sensor 4 sends a signal to control the discharge solenoid valve 6 located at the bottom of the oil tank, which automatically opens to discharge the water in the tank. As the water level in the tank gradually decreases, when the oil contacts the second oil-water separation sensor 7, the sensor sends a signal to control the discharge solenoid valve 8 located at the bottom of the oil tank, which automatically closes the solenoid valve, realizing the automatic drainage function of the storage tank and ensuring that the water level line in the tank is always below the oil discharge solenoid valve 8, ensuring that the oil output is free of water.
[0018] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. An automatic drainage device for a static buffer oil tank, comprising an oil inlet valve (1) and a static buffer oil tank (2), characterized in that: The oil inlet valve (1) is located on the top of the static buffer oil tank (2) for the entry of oil (3); The bottom of the static buffer oil tank (2) is provided with a drain solenoid valve (6), the side wall of the static buffer oil tank (2) is provided with a first oil-water separation sensor (4), the side wall of the static buffer oil tank (2) is also provided with an oil discharge solenoid valve (8), and the bottom of the static buffer oil tank (2) is installed with a second oil-water separation sensor (7).
2. The automatic drainage device for a static buffer oil tank according to claim 1, characterized in that: The drain solenoid valve (6) is used to discharge the separated water and solid sediment (5), and the oil discharge solenoid valve (8) is set on the side wall of the static buffer oil tank (2) and above the first oil-water separation sensor for oil output.
3. The automatic drainage device for a static buffer oil tank according to claim 2, characterized in that: The second oil-water separation sensor (7) is used to provide feedback on the venting signal.