An oil-water separator

Abstract

This utility model discloses an oil-water separator, comprising: a first inlet pipe, a separation tank, and a buffer component. The first inlet pipe is used to transfer an oil-water mixture to a first storage space. The separation tank contains a first storage space, a second storage space, and a third storage space, separated by a first partition and a second partition. The first partition has a first drain pipe and a first oil drain pipe. The first drain pipe connects the first and second storage spaces, draining water from the first storage space into the second storage space, and draining oil from the first storage space into the third storage space. The buffer component is located within the first storage space and mitigates the impact of the oil-water mixture discharged from the first inlet pipe on the oil-water mixture in the first storage space.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection and recycling, and in particular to an oil-water separator. Background Technology

[0002] In human production and daily life, such as chemical industry, machinery manufacturing, and daily life, grease and water are often used as solvents, coolants, lubricants, etc. Grease and water are often used together, and the wastewater after use often contains grease. Wastewater containing grease cannot be discharged directly and the grease in the wastewater needs to be separated.

[0003] Traditional oil-water separators mainly use vertically arranged separation tanks to hold oil-water mixtures. After settling and separating, the lower layer of water is discharged first, followed by the oil, thus achieving separation. However, this type of vertical separation tank requires a settling time, resulting in low efficiency. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an oil-water separator capable of separating the oil and water in a mixture of oil and water, with a simple structure, low operating cost, and high practicality.

[0005] An oil-water separator according to an embodiment of the present invention includes: a first inlet pipe, a separation tank, and a buffer component. The first inlet pipe is used to transport an oil-water mixture. The inlet of the separation tank is connected to the outlet of the first inlet pipe. The separation tank is provided with a first storage space, a second storage space, and a third storage space. The first storage space, the second storage space, and the third storage space are separated by a first partition, and the second storage space and the third storage space are separated by a second partition. The first partition is provided with a first drain pipe and a first oil drain pipe. The first drain pipe is connected to the... A first liquid storage space and a second liquid storage space are provided. The first drain pipe is used to drain water from the first liquid storage space into the second liquid storage space. The first oil drain pipe connects the first liquid storage space and the third liquid storage space, and is used to drain oil from the first liquid storage space into the third liquid storage space. A buffer component is disposed in the first liquid storage space and below the first liquid inlet pipe. The buffer component is used to mitigate the impact of the oil-water mixture discharged from the first liquid inlet pipe on the existing oil-water mixture in the first liquid storage space, so as to avoid disrupting its stratification state.

[0006] It has at least the following beneficial effects: The first inlet pipe is used to transfer the oil-water mixture to the first storage space. Since the density of oil is lower than that of water, the oil-water mixture in the first storage space will be separated into layers. The upper layer is a grease mixture and the lower layer is wastewater. The upper grease mixture will flow into the third storage space through the first drain pipe, and the lower wastewater will flow into the second storage space through the first drain pipe, thereby separating the grease and water in the oil-water mixture. The buffer component is used to buffer the impact of the oil-water mixture flowing out of the first inlet pipe on the oil-water mixture in the first storage space, so as to avoid disrupting the layered structure of the oil-water mixture in the first storage space.

[0007] According to some embodiments of this utility model, the oil-water separator further includes a filter component, a second inlet pipe is provided above the filter component, the outlet of the second inlet pipe is provided above the filter component, the second inlet pipe is used to transport the oil-water mixture into the filter component, the inlet of the first inlet pipe is connected to the filter component, the filter component is used to filter large particulate solids mixed in the oil-water mixture, and the first inlet pipe is used to transport the oil-water mixture filtered by the filter component into the first storage space.

[0008] According to some embodiments of the present invention, the filter component includes a filter box and a filter screen, the filter screen being disposed inside the filter box, and the filter screen being used to filter large particulate solids mixed in an oil-water liquid.

[0009] According to some embodiments of the present invention, a water level detector is provided on the outside of the first liquid storage space, and the water level detector is used to detect the water level in the first liquid storage space.

[0010] According to some embodiments of the present invention, the first oil drain pipe is configured as a U-shape, the inlet of the first oil drain pipe is located in the first liquid storage space, the outlet of the first oil drain pipe is located in the third liquid storage space, and the inlet of the first oil drain pipe is higher than the outlet of the first oil drain pipe.

[0011] According to some embodiments of the present invention, a second drain pipe is connected to the second liquid storage space, one end of the second drain pipe is connected to the second liquid storage space, and the other end of the second drain pipe is connected to a water storage tank, the water storage tank being used to store the water discharged from the second liquid storage space.

[0012] According to some embodiments of the present invention, a second oil drain pipe is connected to the third liquid storage space, one end of the second oil drain pipe is connected to the third liquid storage space, and the other end of the second oil drain pipe is connected to an oil storage tank, which is used to store the oil discharged from the third liquid storage space.

[0013] According to some embodiments of this utility model, valves are provided on the first liquid inlet pipe, the second liquid inlet pipe, the second drain pipe and the second oil drain pipe. The valves are used to control the flow and cut-off of liquid in the corresponding first liquid inlet pipe, the second liquid inlet pipe, the second drain pipe and the second oil drain pipe.

[0014] According to some embodiments of the present invention, a heater is provided on the outside of the first liquid storage space, and the heater is used to heat the oil-water mixture in the first liquid storage space.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of an oil-water separator according to an embodiment of the present invention; Figure 2 for Figure 1 The front view; Figure 3 for Figure 1 The left view; Figure 4 for Figure 1 Top view; Figure 5 This is a schematic diagram of the structure of the first row of oil pipes 270; Reference numerals: First inlet tube 100; Separation tank 200, first liquid storage space 210, second liquid storage space 220, second drain pipe 221, third liquid storage space 230, second oil drain pipe 231, first partition 240, second partition 250, first drain pipe 260, first oil drain pipe 270; Buffer component 300; Filter component 400, second inlet pipe 410, filter box 420, filter screen 430; Water level detector 500, water storage tank 600, oil storage tank 700, valve 800, heater 900. Detailed Implementation

[0017] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0019] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0020] Reference Figures 1 to 5 This utility model discloses an oil-water separator, including: a first inlet pipe 100, a separation tank 200 and a buffer component 300. The first inlet pipe 100 is used to transport oil-water mixture and to transfer the oil-water mixture to the first storage space 210.

[0021] The inlet of the separator 200 is connected to the outlet of the first inlet pipe 100. The separator 200 contains a first storage space 210, a second storage space 220, and a third storage space 230. These three spaces are separated by a first partition 240 and a second partition 250. A first drain pipe 260 and a first oil drain pipe 270 are installed on the first partition 240. The first drain pipe 260 connects the first storage space 210 and the second storage space 220, and is used to drain water from the first storage space 210 into the second storage space 220. The first oil drain pipe 270 connects the first storage space 210 and the third storage space 230, and is used to drain water from the first storage space 210 into the second storage space 220. The oil in the first storage space 210 is discharged into the third storage space 230. Since the density of oil is lower than that of water, the oil-water mixture in the first storage space 210 will separate into layers. The upper layer is a mixture of grease and oil, and the lower layer is wastewater. The upper layer of grease and oil mixture will flow into the third storage space 230 through the first oil drain pipe, and the lower layer of wastewater will flow into the second storage space 220 through the first drain pipe. This separates the grease and oil mixture from the water in the oil-water mixture. It should be noted that the first partition plate 240 is provided with two through holes. The two through holes are used to install the first oil drain pipe 270 and the first drain pipe 260, respectively. The contact points between the first oil drain pipe 270 and the first drain pipe 260 and the through holes should be welded and sealed to prevent the oil-water mixture from flowing into the first storage space 210 and the second storage space 220 through the two through holes.

[0022] It is understandable that the oil mixture in the first storage space 210 needs to be completely separated into the third storage space 230 before the remaining water in the first storage space 210 is separated into the second storage space 220.

[0023] A buffer component 300 is disposed within the first liquid storage space 210 and below the first liquid inlet pipe 100. The buffer component 300 is used to mitigate the impact of the oil-water mixture discharged from the first liquid inlet pipe 100 on the oil-water mixture in the first liquid storage space 210. The buffer component 300 is configured as a cylindrical buffer column. The oil-water mixture discharged from the first liquid inlet pipe 100 flows down from above the buffer component 300 and flows into the first liquid storage space 210 along the side of the buffer component 300. The oil-water mixture discharged from the first liquid inlet pipe 100 will mix with the oil-water mixture in the first liquid storage space 210 at a gentle flow rate, avoiding disruption of the layered structure of the oil-water mixture in the first liquid storage space 210.

[0024] In some embodiments, refer to Figures 1 to 5 This oil-water separator also includes a filter element 400. A second inlet pipe 410 is provided above the filter element 400, and the outlet of the second inlet pipe 410 is located above the filter element 400. The second inlet pipe 410 is used to transport the oil-water mixture into the filter element 400. The inlet of the first inlet pipe 100 is connected to the filter element 400. The filter element 400 is used to filter out large solid particles mixed in the oil-water mixture. The first inlet pipe 100 is used to transport the oil-water mixture filtered by the filter element 400 into the first storage space 210. The filter element 400 is used to filter out large solid particles mixed in the oil-water mixture to prevent large solid particles from accumulating and clogging equipment pipes for a long time. In some industrial activities, toxic solid particles may also be generated. The filter element 400 can filter out toxic solid particles.

[0025] In some embodiments, refer to Figures 1 to 5 The filter component 400 includes a filter box 420 and a filter screen 430. The filter screen 430 is disposed inside the filter box 420 and is used to filter large solid particles mixed in the oil-water mixture. The filter holes on the filter screen 430 can be designed in size and shape according to actual needs. The inner wall of the filter box 420 should be provided with a locking structure to restrict the position of the filter screen 430.

[0026] In some embodiments, refer to Figures 1 to 5A water level detector 500 is installed on the outside of the first liquid storage space 210. The water level detector 500 is used to detect the water level in the first liquid storage space 210. When the liquid level of the oil-water mixture in the first liquid storage space 210 reaches the threshold and is detected by the water level detector 500, the water level detector 500 will issue an alarm to prompt the operator to adjust the flow rate of each pipe in the device. The water level detector 500 is a standard setting and will not be described in detail.

[0027] In some embodiments, refer to Figures 1 to 5 The first oil pipe 270 is U-shaped, with its inlet located in the first liquid storage space 210 and its outlet located in the third liquid storage space 230. The inlet of the first oil pipe 270 is higher than its outlet. According to the principle of communicating vessels, the liquid in the first liquid storage space 210 can flow into the third liquid storage space 230 without the need for power through the U-shaped first oil pipe 270. This design is environmentally friendly, simple in structure, and low in cost.

[0028] In some embodiments, refer to Figures 1 to 5 A second drain pipe 221 is connected to the second liquid storage space 220. One end of the second drain pipe 221 is connected to the second liquid storage space 220, and the other end of the second drain pipe 221 is connected to a water storage tank 600. The water storage tank 600 is used to store the water discharged from the second liquid storage space 220. It is understood that the second liquid storage space 220 is provided with a drain hole, and the second drain pipe 221 is connected to the second liquid storage space 220 through the drain hole. The second drain pipe 221 is used to transport the wastewater in the second liquid storage space 220 to the water storage tank 600 for the next process. A pump should be provided on the second drain pipe 221, and the pump drives the wastewater in the second drain pipe 221 into the water storage tank 600.

[0029] In some embodiments, refer to Figures 1 to 5 The third liquid storage space 230 is connected to a second oil drain pipe 231. One end of the second oil drain pipe 231 is connected to the third liquid storage space 230, and the other end of the second oil drain pipe 231 is connected to an oil storage tank 700. The oil storage tank 700 is used to store the oil discharged from the third liquid storage space 230. It is understood that the third liquid storage space 230 is provided with an oil drain hole, and the second oil drain pipe 231 is connected to the third liquid storage space 230 through the drain hole. The second oil drain pipe 231 is used to transport the mixed oil in the third liquid storage space 230 to the oil storage tank 700 for the next process. A pump should be provided on the second oil drain pipe 231, and the pump drives the mixed oil in the second oil drain pipe 231 into the oil storage tank 700.

[0030] In some embodiments, refer to Figures 1 to 5Valves 800 are installed on the first liquid inlet pipe 100, the second liquid inlet pipe 410, the second drain pipe 221, and the second oil drain pipe 231. Valves 800 are used to control the flow and cut-off of liquid in the corresponding first liquid inlet pipe 100, second liquid inlet pipe 410, second drain pipe 221, and second oil drain pipe 231. Valves 800 are conventional regulating valves and have the function of cutting off liquid and regulating liquid flow.

[0031] In some embodiments, refer to Figures 1 to 5 A heater 900 is provided on the outside of the first liquid storage space 210. The heater 900 is used to heat the oil-water mixture in the first liquid storage space 210. The oil-water mixture may contain some grease. Some grease is solid at room temperature. The heater 900 is used to heat the oil-water mixture to melt the grease in the oil-water mixture and prevent solid grease from clogging the pipe.

[0032] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. An oil-water separator, characterized in that, include: The first inlet pipe (100) is used to transport the oil-water mixture; The separation tank (200) has an inlet connected to the outlet of the first inlet pipe (100). The separation tank (200) contains a first liquid storage space (210), a second liquid storage space (220), and a third liquid storage space (230). The first liquid storage space (210), the second liquid storage space (220), and the third liquid storage space (230) are separated by a first partition (240). The second liquid storage space (220) and the third liquid storage space (230) are separated by a second partition (250). A first drain is provided on the first partition (240). Pipe (260) and first drain pipe (270), the first drain pipe (260) connects the first liquid storage space (210) and the second liquid storage space (220), the first drain pipe (260) is used to drain the water in the first liquid storage space (210) into the second liquid storage space (220), the first drain pipe (270) connects the first liquid storage space (210) and the third liquid storage space (230), the first drain pipe (270) is used to drain the oil in the first liquid storage space (210) into the third liquid storage space (230); A buffer component (300) is disposed in the first liquid storage space (210). The buffer component (300) is disposed below the first liquid inlet pipe (100). The buffer component (300) is used to mitigate the impact of the oil-water mixture discharged from the first liquid inlet pipe (100) on the existing oil-water mixture in the first liquid storage space (210) in order to avoid damaging its stratification state.

2. The oil-water separator according to claim 1, characterized in that, It also includes a filter component (400), on which a second liquid inlet pipe (410) is provided. The outlet of the second liquid inlet pipe (410) is located above the filter component (400). The second liquid inlet pipe (410) is used to transport the oil-water mixture into the filter component (400). The inlet of the first liquid inlet pipe (100) is connected to the filter component (400). The filter component (400) is used to filter large solid particles mixed in the oil-water mixture. The first liquid inlet pipe (100) is used to transport the oil-water mixture filtered by the filter component (400) into the first liquid storage space (210).

3. An oil-water separator according to claim 2, characterized in that, The filter component (400) includes a filter box (420) and a filter screen (430). The filter screen (430) is disposed inside the filter box (420) and is used to filter large solid particles mixed in the oil-water mixture.

4. An oil-water separator according to claim 3, characterized in that, A water level detector (500) is provided on the outside of the first liquid storage space (210), and the water level detector (500) is used to detect the water level in the first liquid storage space (210).

5. An oil-water separator according to claim 4, characterized in that, The first oil drain pipe (270) is U-shaped. The inlet of the first oil drain pipe (270) is located in the first liquid storage space (210), and the outlet of the first oil drain pipe (270) is located in the third liquid storage space (230). The inlet of the first oil drain pipe (270) is higher than the outlet of the first oil drain pipe (270).

6. An oil-water separator according to claim 5, characterized in that, A second drain pipe (221) is connected to the second liquid storage space (220). One end of the second drain pipe (221) is connected to the second liquid storage space (220), and the other end of the second drain pipe (221) is connected to a water storage tank (600). The water storage tank (600) is used to store the water discharged from the second liquid storage space (220).

7. An oil-water separator according to claim 6, characterized in that, The third liquid storage space (230) is connected to a second oil drain pipe (231). One end of the second oil drain pipe (231) is connected to the third liquid storage space (230), and the other end of the second oil drain pipe (231) is connected to an oil storage tank (700). The oil storage tank (700) is used to store the oil discharged from the third liquid storage space (230).

8. An oil-water separator according to claim 7, characterized in that, A valve (800) is provided on the first liquid inlet pipe (100), the second liquid inlet pipe (410), the second drain pipe (221), and the second oil drain pipe (231). The valve (800) is used to control the flow and cut-off of liquid in the corresponding first liquid inlet pipe (100), second liquid inlet pipe (410), second drain pipe (221), and second oil drain pipe (231).

9. An oil-water separator according to claim 1, characterized in that, A heater (900) is provided on the outside of the first liquid storage space (210), and the heater (900) is used to heat the oil-water mixture in the first liquid storage space (210).

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