Three-stage oil-water separation device

Abstract

The utility model discloses a three-stage oil-water separation device which comprises a first-stage oil-water separation mechanism, a second-stage oil-water separation mechanism and a third-stage oil-water separation mechanism. According to the utility model, a mixture of a solvent and water enters the first-stage oil-water separation device through the condensation liquid inlet pipe or the drying recovery liquid inlet pipe, the solvent with low density is on the upper layer, and when the liquid level is enough (reaching the height of the liquid inlet of the first liquid outlet pipe), the solvent is separated from the first-stage oil-water separation device; a solvent mixture subjected to primary separation flows to the bottom of the second-stage oil-water separation mechanism through a first liquid outlet pipe, and when the liquid level in the second-stage oil-water separation mechanism reaches the height of a liquid inlet of a second liquid outlet pipe, the solvent is discharged into the bottom of the third-stage oil-water separation mechanism through a second liquid storage pipe; and when the liquid level reaches the height of the liquid inlet of the third liquid outlet pipe, the solvent with higher purity can be extracted.

Description

Technical Field

[0001] This utility model relates to the field of oil-water separator technology, and in particular to a three-stage oil-water separation device. Background Technology

[0002] Most existing dry cleaning equipment uses single-stage oil-water separators, which easily leads to incomplete oil-water separation and the inability to recover pure dry cleaning solvents.

[0003] Therefore, existing technologies have shortcomings and need to be improved. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a three-stage oil-water separation device to fully separate oil and water in the liquid after dry cleaning, so as to recover pure dry cleaning solvent.

[0005] The technical solution of this utility model is as follows: A three-stage oil-water separation device is provided, comprising: a first-stage oil-water separation mechanism, a second-stage oil-water separation mechanism, and a third-stage oil-water separation mechanism; the first-stage oil-water separation mechanism comprises: a first storage tank, an inlet pipe and a first outlet pipe respectively inserted into the first storage tank; the inlet of the first outlet pipe is higher than the outlet of the inlet pipe, and the inlet of the first outlet pipe is located near the top of the first storage tank; the second-stage oil-water separation mechanism comprises: a second storage tank, and a second outlet pipe inserted into the second storage tank; the first outlet pipe is inserted into the second storage tank, the inlet of the second outlet pipe is higher than the outlet of the first outlet pipe, and the outlet of the first outlet pipe is located near the bottom of the second storage tank; the third-stage oil-water separation mechanism comprises: a third storage tank and a third outlet pipe; the outlet of the second outlet pipe is inserted into the third storage tank and located near the bottom of the third storage tank, and the inlet of the third outlet pipe is located near the top of the third storage tank.

[0006] The first-stage oil-water separation unit can initially separate the oil-water mixture. The second-stage oil-water separation unit can further separate the oil and water in the mixture that has already undergone initial separation. The third-stage oil-water separation unit can further separate the liquid flowing out of the second-stage oil-water separation unit. The three-stage oil-water separation can fully and effectively separate oil and water, and realize the recovery of pure dry cleaning solvent.

[0007] Furthermore, the three-stage oil-water separator further includes: a first drain outlet installed on the first storage tank, a second drain outlet installed on the second storage tank, and a third drain outlet installed on the third storage tank; the first drain outlet is located on the side near the bottom surface of the first storage tank, the second drain outlet is located on the side near the bottom surface of the second storage tank, and the third drain outlet is located on the side near the bottom surface of the third storage tank. The first drain outlet is used to drain water from the first storage tank, the second drain outlet is used to drain water from the second storage tank, and the third drain outlet is used to drain water from the third storage tank.

[0008] Furthermore, the three-stage oil-water separator also includes a level float switch installed inside the first storage tank. The level float switch is used to determine the water level in the first storage tank.

[0009] Furthermore, the three-stage oil-water separator further includes: a pressure balancing port and an additive filling port communicating with the cavity of the first liquid storage tank; the pressure balancing port and the additive filling port are installed on the top of the first liquid storage tank. The pressure balancing port is used to balance the pressure, and the additive filling port is used to add additives.

[0010] Furthermore, the inlet pipe is inserted obliquely into the first liquid storage tank, which allows the liquid in the first liquid storage tank to flow back.

[0011] Furthermore, the inlet pipe includes: a condensation inlet pipe and / or a drying and recovery inlet pipe.

[0012] Furthermore, the first, second, and third liquid storage tanks are an integral unit. This integral design saves space and improves space utilization.

[0013] Furthermore, the first liquid storage tank, the second liquid storage tank, and the third liquid storage tank each include: a box body with a maintenance port, and a cover that seals the maintenance port.

[0014] Furthermore, the bottom surfaces of the first, second, and third liquid storage tanks are all inclined surfaces.

[0015] Using the above scheme, this utility model provides a three-stage oil-water separation device. The mixture of solvent and water enters the first-stage oil-water separation device through a condenser inlet pipe or a drying and recovery inlet pipe. The solvent with lower density will be in the upper layer. When the liquid level is sufficient (reaching the height of the inlet of the first outlet pipe), the solvent mixture separated by the first stage will flow through the first outlet pipe to the bottom of the second-stage oil-water separation mechanism. When the liquid level in the second-stage oil-water separation mechanism reaches the height of the inlet of the second outlet pipe, the solvent will be discharged through the second storage pipe into the bottom of the third-stage oil-water separation mechanism. When the liquid level reaches the height of the inlet of the third outlet pipe, a solvent with higher purity can be extracted. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention;

[0017] Figure 2 for Figure 1 A structural schematic diagram from another perspective of the embodiment;

[0018] Figure 3 for Figure 1 A structural schematic diagram from another perspective of the embodiment;

[0019] Figure 4 for Figure 1 Cross-sectional view of an embodiment. Detailed Implementation

[0020] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Please see Figures 1-4 This embodiment provides a three-stage oil-water separation device, including: a first-stage oil-water separation mechanism, a second-stage oil-water separation mechanism, and a third-stage oil-water separation mechanism; the first-stage oil-water separation mechanism includes: a first storage tank 10, an inlet pipe and a first outlet pipe 11 respectively inserted into the first storage tank; the inlet of the first outlet pipe 11 is higher than the outlet of the inlet pipe, and the inlet of the first outlet pipe 11 is close to the top of the first storage tank 10; the second-stage oil-water separation mechanism includes: a second storage tank 12, a second... The first liquid outlet pipe 11 is inserted into the second liquid storage tank 12, the inlet of the second liquid outlet pipe 13 is higher than the outlet of the first liquid outlet pipe 11, and the outlet of the first liquid outlet pipe 11 is located on the side near the bottom of the second liquid storage tank 12; the third-stage oil-water separation mechanism includes: a third liquid storage tank 14 and a third liquid outlet pipe 15; the outlet of the second liquid outlet pipe 13 is inserted into the third liquid storage tank 14 and located on the side near the bottom of the third liquid storage tank 14, and the inlet of the third liquid outlet pipe 15 is located on the side near the top of the third liquid storage tank 14.

[0022] The first-stage oil-water separation unit can initially separate the oil-water mixture. The second-stage oil-water separation unit can further separate the oil and water in the mixture that has already undergone initial separation. The third-stage oil-water separation unit can further separate the liquid flowing out of the second-stage oil-water separation unit. The three-stage oil-water separation can fully and effectively separate oil and water, and realize the recovery of pure dry cleaning solvent.

[0023] In this embodiment, the three-stage oil-water separator further includes: a first drain outlet 16 installed on the first storage tank 10, a second drain outlet 17 installed on the second storage tank 12, and a third drain outlet 18 installed on the third storage tank 14; the first drain outlet 16 is located on the side near the bottom surface of the first storage tank 10, the second drain outlet 17 is located on the side near the bottom surface of the second storage tank 12, and the third drain outlet 18 is located on the side near the bottom surface of the third storage tank 14. The first drain outlet 16 is used to drain water from the first storage tank 10, the second drain outlet 17 is used to drain water from the second storage tank 12, and the third drain outlet 18 is used to drain water from the third storage tank 14.

[0024] In this embodiment, the three-stage oil-water separator further includes a level float switch 19 installed in the first storage tank 10. The level float switch 19 is used to determine the water level in the first storage tank 10.

[0025] In this embodiment, the three-stage oil-water separator further includes: a pressure balancing port 20 and an additive filling port 21 communicating with the cavity of the first liquid storage tank 10; the pressure balancing port 20 and the additive filling port 21 are installed on the top of the first liquid storage tank 10. The pressure balancing port 20 is used to balance the pressure, and the additive filling port is used to add additives.

[0026] In this embodiment, the inlet pipe is inserted obliquely into the first liquid storage tank 10, which allows the liquid in the first liquid storage tank 10 to flow back.

[0027] In this embodiment, the liquid inlet pipe includes: a condensation liquid inlet pipe 22 and a drying and recovery liquid inlet pipe 23.

[0028] In this embodiment, the first liquid storage tank 10, the second liquid storage tank 12, and the third liquid storage tank 14 are an integral structure. This integral structure saves space and improves space utilization.

[0029] In this embodiment, the first liquid storage tank 10, the second liquid storage tank 12, and the third liquid storage tank 14 each include: a box body with a maintenance port, and a cover 25 for sealing the maintenance port.

[0030] In this embodiment, the bottom surfaces of the first, second, and third liquid storage tanks are all sloped. This facilitates water accumulation at the bottom of the slope.

[0031] In summary, this utility model provides a three-stage oil-water separation device. The mixture of solvent and water enters the first-stage oil-water separation device through a condenser inlet pipe or a drying and recovery inlet pipe. The solvent with lower density will be in the upper layer. When the liquid level is sufficient (reaching the height of the inlet of the first outlet pipe), the solvent mixture separated by the first stage will flow through the first outlet pipe to the bottom of the second-stage oil-water separation mechanism. When the liquid level in the second-stage oil-water separation mechanism reaches the height of the inlet of the second outlet pipe, the solvent will be discharged through the second storage pipe into the bottom of the third-stage oil-water separation mechanism. When the liquid level reaches the height of the inlet of the third outlet pipe, a solvent with higher purity can be extracted.

[0032] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A three-stage oil-water separation device, characterized in that, include: First-stage oil-water separation mechanism, second-stage oil-water separation mechanism, and third-stage oil-water separation mechanism; The first-stage oil-water separation mechanism includes: a first storage tank, an inlet pipe and a first outlet pipe respectively inserted into the first storage tank; the inlet of the first outlet pipe is higher than the outlet of the inlet pipe, and the inlet of the first outlet pipe is located near the top of the first storage tank; the second-stage oil-water separation mechanism includes: a second storage tank, and a second outlet pipe inserted into the second storage tank; the first outlet pipe is inserted into the second storage tank, the inlet of the second outlet pipe is higher than the outlet of the first outlet pipe, and the outlet of the first outlet pipe is located near the bottom of the second storage tank; the third-stage oil-water separation mechanism includes: a third storage tank and a third outlet pipe; the outlet of the second outlet pipe is inserted into the third storage tank and located near the bottom of the third storage tank, and the inlet of the third outlet pipe is located near the top of the third storage tank.

2. The three-stage oil-water separation device according to claim 1, characterized in that, Also includes: A first drain outlet is installed on the first liquid storage tank, a second drain outlet is installed on the second liquid storage tank, and a third drain outlet is installed on the third liquid storage tank; the first drain outlet is located on the side of the bottom surface of the first liquid storage tank, the second drain outlet is located on the side of the bottom surface of the second liquid storage tank, and the third drain outlet is located on the side of the bottom surface of the third liquid storage tank.

3. The three-stage oil-water separation device according to claim 2, characterized in that, Also includes: A level float switch installed in the first liquid storage tank.

4. The three-stage oil-water separator according to claim 1, characterized in that, Also includes: A pressure balance port and an additive filling port are connected to the cavity of the first liquid storage tank; the pressure balance port and the additive filling port are installed on the top of the first liquid storage tank.

5. A three-stage oil-water separator according to claim 1, characterized in that, The inlet pipe is inserted obliquely into the first storage tank.

6. A three-stage oil-water separator according to claim 1, characterized in that, The inlet pipe includes: a condenser inlet pipe and / or a drying and recovery inlet pipe.

7. A three-stage oil-water separator according to claim 1, characterized in that, The first liquid storage tank, the second liquid storage tank, and the third liquid storage tank are integral structures.

8. A three-stage oil-water separator according to claim 1, characterized in that, The first liquid storage tank, the second liquid storage tank, and the third liquid storage tank each include: a box body with a maintenance port, and a cover that seals the maintenance port.

9. A three-stage oil-water separator according to claim 1, characterized in that, The bottom surfaces of the first, second, and third liquid storage tanks are all sloped.

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