Oil-water separation device

Abstract

The utility model provides an oil-water separation device which comprises a separation tank and a pipeline assembly, and the separation tank is provided with a liquid inlet, a first connecting port, a second connecting port and a liquid outlet; the pipeline assembly comprises a liquid outlet pipeline and a balance pipeline, the liquid outlet pipeline comprises a first liquid outlet pipe, a second liquid outlet pipe, a third liquid outlet pipe and a fourth liquid outlet pipe, one end of the first liquid outlet pipe is communicated with the liquid outlet, and the other end of the first liquid outlet pipe is connected with one end of the second liquid outlet pipe and one end of the third liquid outlet pipe through a first three-way connector; the other end of the second liquid outlet pipe and the other end of the third liquid outlet pipe are connected with the fourth liquid outlet pipe through a second three-way connector, the second liquid outlet pipe is connected with the second connector through a balance pipeline, and the connecting position of the second liquid outlet pipe and the balance pipeline is higher than the liquid outlet and lower than the second connector. Under the condition that manual inspection is not needed, only a water phase layer continuously flows out, and an oil phase layer is kept in the separation tank.

Description

Technical Field

[0001] The utility model relates to the technical field of oil-water two-phase separation, and particularly relates to an oil-water separation device. Background Art

[0002] In the process of chemical production, it is usually necessary to separate oil and water in an oil-water mixture to collect and reprocess the effective oil phase therein.

[0003] At present, the separation process of an oil-water mixture is generally as follows: the oil-water mixture is collected in an oil-water separator. Since the densities of the oil phase and the water phase are different, the oil-water mixture will be stratified, specifically, a heavy water phase layer at the bottom and a light oil phase layer at the top. After the water phase is basically or completely discharged through the drain pipe at the bottom of the oil-water separator, the oil phase is collected. However, in this process, it is often necessary for workers to constantly monitor the discharge of the water phase to avoid the problem of accidental discharge of the oil phase. Summary of the Utility Model

[0004] Based on this, the purpose of the utility model is to provide an oil-water separation device, aiming to solve the technical problem that in the prior art, when an oil-water separator separates oil and water, it is necessary for workers to constantly monitor the discharge of the water phase to avoid accidental discharge of the oil phase.

[0005] The purpose of the utility model is to provide an oil-water separation device, which includes a separation tank and a pipeline assembly arranged outside the separation tank and communicating with the inside of the separation tank. The top of the separation tank is provided with a liquid inlet, a first connection port and a second connection port. The separation tank communicates with the external atmosphere through the first connection port. The bottom of the separation tank is provided with a liquid outlet;

[0006] The pipeline assembly includes a liquid outlet pipeline and a balance pipeline. The liquid outlet pipeline includes a first liquid outlet pipe, a second liquid outlet pipe, a third liquid outlet pipe and a fourth liquid outlet pipe. One end of the first liquid outlet pipe is communicated with the liquid outlet. The other end of the first liquid outlet pipe is connected with one ends of the second liquid outlet pipe and the third liquid outlet pipe through a first three-way joint. The first liquid outlet pipe, the second liquid outlet pipe and the fourth liquid outlet pipe communicate to form a water phase flow channel; the other ends of the second liquid outlet pipe and the third liquid outlet pipe are connected with the fourth liquid outlet pipe through a second three-way joint. The first liquid outlet pipe, the third liquid outlet pipe and the fourth liquid outlet pipe communicate to form an oil phase flow channel;

[0007] The second liquid outlet pipe is connected with the second connection port through the balance pipeline. The connection part of the second liquid outlet pipe and the balance pipeline is higher than the liquid outlet and lower than the second connection port.

[0008] The above-mentioned oil-water separation device can continuously flow out only the water phase layer and retain the light oil layer in the separation tank without the need for personnel inspection. Specifically, when the water phase flow channel is turned on, the water phase layer in the separation tank will flow out through the water phase flow channel, and because the separation tank is connected to the external atmosphere through the first connection port, the second liquid outlet pipe is connected to the second connection port of the separation tank through the balance pipe, and the connection between the second liquid outlet pipe and the balance pipe is higher than the liquid outlet and lower than the second connection port. Under the action of the pipeline air pressure and the internal air pressure of the separation tank, the water phase flow channel can only continuously pass through the water phase layer, and the oil phase layer is retained in the separation tank; when the oil phase layer needs to be recovered, the water phase flow channel can be closed and the oil phase flow channel can be turned on so that the oil phase layer can flow out through the oil phase flow channel, thereby realizing the collection of the oil phase layer.

[0009] In addition, the oil-water separation device according to the utility model may also have the following additional technical features:

[0010] Furthermore, the distance between the connection point between the second liquid outlet pipe and the balance pipe and the liquid outlet is in the range of one half to two thirds of the total height of the separation tank.

[0011] Furthermore, a first valve is provided on one end of the first liquid outlet pipe connected to the liquid outlet, a second valve for controlling the on-off of the water phase flow channel is provided on one end of the second liquid outlet pipe connected to the first liquid outlet pipe, a third valve for controlling the on-off of the oil phase flow channel is provided on the third liquid outlet pipe, and a fourth valve is provided on the fourth liquid outlet pipe, and the fourth valve is used to control the on-off of the fourth liquid outlet pipe.

[0012] Furthermore, an observation sight is provided at one end of the first liquid outlet pipe connected to the liquid outlet, and the observation sight is located below the first valve.

[0013] Furthermore, the first liquid outlet pipe is an L-shaped pipe, the vertical part of the L-shaped pipe is connected to the liquid outlet, and the first valve and the observation sight are provided on the vertical part of the L-shaped pipe; the horizontal part of the L-shaped pipe is connected to the second liquid outlet pipe and the third liquid outlet pipe through the first three-way joint.

[0014] Further, the second liquid outlet pipe is an inverted U-shaped pipe, a vertical portion of the pipe in the inverted U-shaped pipe is connected with one end of the first liquid outlet pipe away from the separation tank and one end of the third liquid outlet pipe through the first three-way joint, another vertical portion of the pipe in the inverted U-shaped pipe is connected with one end of the third liquid outlet pipe and the other end of the fourth liquid outlet pipe through the second three-way joint, and the horizontal portion of the pipe in the inverted U-shaped pipe is connected with the balance pipe.

[0015] Further, a fourth valve is provided on the fourth liquid outlet pipe, and the fourth valve is used to control the on-off of the fourth liquid outlet pipe.

[0016] Further, the pipeline assembly further includes a liquid inlet pipeline, the liquid inlet pipeline is connected to the liquid inlet, and a liquid inlet valve is provided on the liquid inlet pipeline, and the liquid inlet valve is used to control the on-off of the liquid inlet pipeline.

[0017] Further, a fifth valve is provided at the first connection port, and sixth valves are respectively provided at both ends of the balance pipeline.

[0018] Further, a liquid level gauge is provided on an outer wall of one side of the separation tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the oil-water separation device of the present utility model.

[0020] Among them, the above-mentioned drawings include the following reference numerals: 1-separation tank; 11-liquid inlet; 12-first connection port; 13-second connection port; 14-liquid outlet; 15-liquid level gauge; 21-first liquid outlet pipe; 22-second liquid outlet pipe; 23-third liquid outlet pipe; 24-fourth liquid outlet pipe; 3-balance pipeline; 41-first valve; 42-second valve; 43-third valve; 44-fourth valve; 45-fifth valve; 46-sixth valve; 47-liquid inlet valve; 5-liquid inlet pipeline; 6-observation sight glass.

[0021] The following specific embodiments will further illustrate the present utility model in conjunction with the above-mentioned drawings. SPECIFIC EMBODIMENTS

[0022] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present utility model are given in the drawings. However, the present utility model can be implemented 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 utility model more thorough and comprehensive.

[0023] It should be noted that when an element is referred to as being "fixedly provided on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model herein are for the purpose of describing specific embodiments only and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0025] Please refer to Figure 1 , the oil-water separation device of this utility model includes a separation tank 1 and a pipeline assembly arranged outside the separation tank 1 and communicating with the inside of the separation tank 1. The top of the separation tank 1 is provided with a liquid inlet 11, a first connection port 12 and a second connection port 13. The separation tank 1 communicates with the external atmosphere through the first connection port 12, and the bottom of the separation tank 1 is provided with a liquid outlet 14.

[0026] The pipeline assembly includes a liquid outlet pipeline and a balance pipeline 3. The liquid outlet pipeline includes a first liquid outlet pipe 21, a second liquid outlet pipe 22, a third liquid outlet pipe 23 and a fourth liquid outlet pipe 24. One end of the first liquid outlet pipe 21 is communicated with the liquid outlet 14, and the other end of the first liquid outlet pipe 21 is connected to one ends of the second liquid outlet pipe 22 and the third liquid outlet pipe 23 through a first three-way joint. The first liquid outlet pipe 21, the second liquid outlet pipe 22 and the fourth liquid outlet pipe 24 communicate to form an aqueous phase flow channel; the other ends of the second liquid outlet pipe 22 and the third liquid outlet pipe 23 are connected to the fourth liquid outlet pipe 24 through a second three-way joint. The first liquid outlet pipe 21, the third liquid outlet pipe 23 and the fourth liquid outlet pipe 24 communicate to form an oil phase flow channel.

[0027] One end of the first liquid outlet pipe 21 connected to the liquid outlet 14 is provided with a first valve 41, and the first valve 41 is used to control the on-off of the first liquid outlet pipe 21. Further, an observation sight glass can also be provided at one end of the first liquid outlet pipe 21 connected to the liquid outlet 14. The observation sight glass is located below the first valve 41 to observe the liquid flowing through the first liquid outlet pipe 21. As a specific example, in this embodiment, the first liquid outlet pipe 21 is an L-shaped pipe. The vertical part of the L-shaped pipe is communicated with the liquid outlet 14 of the separation tank 1. The vertical part of the L-shaped pipe is provided with a first valve 41 and an observation sight glass; the horizontal part of the L-shaped pipe is communicated with the second liquid outlet pipe 22 and the third liquid outlet pipe 23 through a first three-way joint.

[0028] The second liquid outlet pipe 22 is connected to the second connection port 13 through the balance pipe 3. The connection between the second liquid outlet pipe 22 and the balance pipe 3 is higher than the liquid outlet 14 and lower than the second connection port 13. Further, the distance between the connection between the second liquid outlet pipe 22 and the balance pipe 3 and the liquid outlet 14 ranges from one-half to two-thirds of the total height of the separation tank 1. As a specific example, in this embodiment, the second liquid outlet pipe 22 is an inverted U-shaped pipe. One vertical part of the inverted U-shaped pipe is connected to the end of the first liquid outlet pipe 21 away from the separation tank 1 and one end of the third liquid outlet pipe 23 through a first three-way joint. The other vertical part of the inverted U-shaped pipe is connected to one end of the third liquid outlet pipe 23 and the other end of the fourth liquid outlet pipe 24 through a second three-way joint. The horizontal part of the inverted U-shaped pipe is connected to the balance pipe 3, and the position of the horizontal part of the inverted U-shaped pipe can be located in the area between one-half and two-thirds of the tank body of the separation tank 1.

[0029] Further, a second valve 42 for controlling the on-off of the water phase flow channel is provided at one end of the second liquid outlet pipe 22 connected to the first liquid outlet pipe 21. A third valve 43 for controlling the on-off of the oil phase flow channel is provided on the third liquid outlet pipe 23. A fourth valve 44 is provided on the fourth liquid outlet pipe 24, and the fourth valve 44 is used to control the on-off of the fourth liquid outlet pipe 24.

[0030] Further, the pipeline assembly further includes a liquid inlet pipe 5. The liquid inlet pipe 5 is connected to the liquid inlet 11, and a liquid inlet valve 47 is provided on the liquid inlet pipe. The liquid inlet valve 47 is used to control the on-off of the liquid inlet pipe 5.

[0031] Further, a fifth valve 45 is provided at the first connection port 12, and sixth valves 46 are provided at both ends of the balance pipe 3.

[0032] Further, a liquid level gauge 15 is provided on the outer wall of one side of the separation tank 1. The liquid level gauge 15 is used to detect the liquid level height of the liquid inside the separation tank 1.

[0033] In the actual use process, the working principle of the oil-water separation device of the present utility model can be as follows: Open the liquid inlet valve 47 so that the oil-water mixture from the front-end container can enter the separation tank 1 through the liquid inlet pipeline 5. Due to the different densities of the oil phase and the water phase, the oil-water mixture will automatically stratify in the separation tank 1. Specifically, the oil phase is located in the upper layer and the water phase is located in the lower layer. When it is necessary to discharge the water phase in the separation tank 1, keep the fifth valve 45 at the top of the separation tank 1 and the sixth valve 46 at both ends of the balance pipeline 3 in the open state, and open the first valve 41, the second valve 42, and the third valve 43 to conduct the water phase flow path. The water phase in the separation tank will be discharged through the water phase flow path. Since the separation tank is communicated with the external atmosphere through the first connection port 12, the second liquid outlet pipe 22 is connected to the second connection port 13 of the separation tank 1 through the balance pipeline 3, and the connection between the second liquid outlet pipe 22 and the balance pipeline 3 is higher than the liquid outlet 14 and lower than the second connection port 13. Under the action of the pipeline air pressure and the internal air pressure of the separation tank, the water phase flow path only continuously passes through the water phase layer, and the oil phase layer is retained in the separation tank 1; when it is necessary to recover the oil phase layer, the second valve 42 can be closed and the fourth valve 44 can be opened to close the water phase flow path and conduct the oil phase flow path. The oil phase layer in the separation tank 1 will flow out through the oil phase flow path, so as to achieve the purpose of recovering the oil phase.

[0034] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0035] The above-described embodiments only represent several implementation manners of the present utility model, and the descriptions are relatively specific and detailed, but should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model should be subject to the appended claims.

Claims

1. An oil-water separation device, characterized in that: The invention comprises a separation tank and a pipeline assembly arranged outside the separation tank and communicating with the interior of the separation tank, wherein the top of the separation tank is provided with a liquid inlet, a first connecting port and a second connecting port, the separation tank is communicated with the external atmosphere through the first connecting port, and the bottom of the separation tank is provided with a liquid outlet; The pipeline assembly includes a liquid outlet pipeline and a balance pipeline, the liquid outlet pipeline includes a first liquid outlet pipe, a second liquid outlet pipe, a third liquid outlet pipe and a fourth liquid outlet pipe, one end of the first liquid outlet pipe is connected to the liquid outlet, the other end of the first liquid outlet pipe is connected to one end of the second liquid outlet pipe and the third liquid outlet pipe through a first three-way joint, the first liquid outlet pipe, the second liquid outlet pipe and the fourth liquid outlet pipe are connected to form a water phase flow channel; the other ends of the second liquid outlet pipe and the third liquid outlet pipe are connected to the fourth liquid outlet pipe through a second three-way joint, the first liquid outlet pipe, the third liquid outlet pipe and the fourth liquid outlet pipe are connected to form an oil phase flow channel; The second liquid outlet pipe is connected to the second connecting port through the balancing pipe, and a connection point between the second liquid outlet pipe and the balancing pipe is higher than the liquid outlet and lower than the second connecting port.

2. The oil-water separation device according to claim 1, characterized in that: The distance between the connection point between the second liquid outlet pipe and the balance pipe and the liquid outlet is in the range of one half to two thirds of the total height of the separation tank.

3. The oil-water separation device according to claim 1, characterized in that: A first valve is provided on one end of the first liquid outlet pipe connected to the liquid outlet, a second valve for controlling the on-off of the water phase flow channel is provided on one end of the second liquid outlet pipe connected to the first liquid outlet pipe, a third valve for controlling the on-off of the oil phase flow channel is provided on the third liquid outlet pipe, and a fourth valve is provided on the fourth liquid outlet pipe, and the fourth valve is used to control the on-off of the fourth liquid outlet pipe.

4. The oil-water separation device according to claim 3, characterized in that: An observation sight is also provided at one end of the first liquid outlet pipe connected to the liquid outlet, and the observation sight is located below the first valve.

5. The oil-water separation device according to claim 4, characterized in that: The first liquid outlet pipe is an L-shaped pipe, the vertical part of the L-shaped pipe is connected to the liquid outlet, and the first valve and the observation sight are provided on the vertical part of the L-shaped pipe; the horizontal part of the L-shaped pipe is connected to the second liquid outlet pipe and the third liquid outlet pipe through the first three-way joint.

6. The oil-water separation device according to claim 1, characterized in that: The second liquid outlet pipe is an inverted U-shaped pipe, a vertical portion of the pipe in the inverted U-shaped pipe is connected with one end of the first liquid outlet pipe away from the separation tank and one end of the third liquid outlet pipe through the first three-way joint, another vertical portion of the pipe in the inverted U-shaped pipe is connected with one end of the third liquid outlet pipe and the other end of the fourth liquid outlet pipe through the second three-way joint, and the horizontal portion of the pipe in the inverted U-shaped pipe is connected with the balance pipe.

7. The oil-water separation device according to claim 1, characterized in that: The pipeline assembly also includes a liquid inlet pipeline, which is connected to the liquid inlet port, and a liquid inlet valve is provided on the liquid inlet pipeline, and the liquid inlet valve is used to control the on-off of the liquid inlet pipeline.

8. The oil-water separation device according to claim 1, characterized in that: A fifth valve is provided at the first connection port, and sixth valves are provided at both ends of the balancing pipeline.

9. The oil-water separation device according to claim 1, characterized in that: A liquid level gauge is provided on one outer wall of the separation tank.

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