Negative pressure oil-water separation device

Abstract

The utility model discloses a negative pressure oil-water separation device which comprises a separation box body, a vacuum generator, an oil outlet pipe and a waste oil collecting tank, a liquid level adjusting plate and a plurality of partition plates are arranged in the separation box body, the separation box body can be divided into a starting end, an oil outlet end and a water return groove, and the oil outlet end is located between the starting end and the water return groove. The liquid level adjusting plate is located between the oil outlet end and the water return groove, the two ends of the oil outlet pipe are communicated with the waste oil collecting tank and the oil outlet end of the separation box body respectively, and the vacuum generator is arranged at the upper end of one side of the starting end of the separation box body and communicated with the separation box body. A liquid inlet, a liquid outlet, a pressure balance port and an installation port for installing a pressure gauge are formed in the starting end of the separation box body, the liquid inlet is formed above one side of the starting end of the separation box body, the installation port and the pressure balance port are both formed in the top end of the starting end of the separation box body, and the liquid outlet is formed in the bottom end of one side of the water return groove. The negative-pressure oil-water separation device has the advantage that the negative-pressure oil-water separation device has a remarkable separation effect on oil-water mixed liquid.

Description

Technical Field

[0001] The utility model relates to the technical field of oil-water separation, in particular to a negative-pressure oil-water separation device. Background Art

[0002] With the development of industries such as hardware machining, at the processing site of industrial enterprises, cutting fluid contains oil. If it cannot be separated and treated well, the cutting fluid is likely to fail and cannot be used continuously. In many cases, waste oil is dissolved in the cutting fluid, and traditional treatment processes such as steel belt adsorption and physical separation can no longer meet the requirements of the new situation. Moreover, due to the diversity of products and different technological characteristics in each production workshop of industrial enterprises, the oil content also varies significantly, and the composition is relatively complex and not easy to separate. Therefore, separating and treating oil-water mixed liquids such as "oil-in-water" has become the focus of attention in the industry. The existing oil-water separation devices have poor separation effects on oil-water mixed liquids such as "oil-in-water", and improvements need to be made. Content of the Utility Model

[0003] The purpose of the utility model is to provide a negative-pressure oil-water separation device that has a significant separation effect on oil-water mixed liquids such as "oil-in-water".

[0004] The utility model provides a negative-pressure oil-water separation device, which includes a separation box body, a vacuum generator, an oil outlet pipe and a waste oil collection tank. A liquid level adjusting plate and several partition plates are arranged in the separation box body. The separation box body can be divided into a starting end, an oil outlet end and a water return tank. The oil outlet end is located between the starting end and the water return tank. The liquid level adjusting plate is located between the oil outlet end and the water return tank. The two ends of the oil outlet pipe are respectively communicated with the waste oil collection tank and the oil outlet end of the separation box body. The vacuum generator is arranged at the upper end of one side of the starting end of the separation box body and is communicated with the separation box body. An inlet, a drain, a pressure balance port and an installation port for installing a pressure gauge are formed at the starting end of the separation box body. The inlet is arranged above one side of the starting end of the separation box body. The installation port and the pressure balance port are both arranged at the top of the starting end of the separation box body. The drain is arranged at the bottom end of one side of the water return tank.

[0005] Preferably, a liquid level gauge is vertically arranged in the water return tank, and the liquid level gauge penetrates out from the top of the water return tank.

[0006] Preferably, an oil tank liquid level gauge is vertically arranged in the waste oil collection tank, and the oil tank liquid level gauge penetrates out from the top of the waste oil collection tank.

[0007] Preferably, an oil pumping port is formed at the top of the waste oil collection tank, and the oil tank liquid level gauge penetrates out from the oil pumping port.

[0008] Preferably, an inspection and cleaning port is formed on one side of the separation box body.

[0009] Preferably, the starting end of the separation box body includes a separation top cavity, a separation connection cavity, and a separation horizontal cavity. The separation connection cavity is vertically arranged, and both ends of the separation connection cavity are respectively communicated with the separation top cavity and the separation horizontal cavity. The partition plate includes a plurality of end partition plates and a plurality of side partition plates. The plurality of end partition plates are vertically and fixedly arranged in the separation top cavity, and the plurality of end partition plates are fixed to the top or bottom of the separation top cavity. The end partition plates fixed to the top of the separation top cavity and the end partition plates fixed to the bottom of the separation top cavity are arranged at intervals, and a first channel opening is formed between the end partition plates and the separation top cavity.

[0010] Preferably, the plurality of side partition plates are arranged along the length direction of the separation horizontal cavity, and the plurality of side partition plates are fixedly arranged at intervals on both side walls of the separation horizontal cavity. A second channel opening is formed between the side partition plates and the separation horizontal cavity.

[0011] As can be seen from the above description of the present invention, the present invention has the following beneficial effects:

[0012] 1. The vacuum generator makes the inside of the separation box body generate negative pressure. Under the negative pressure inside the separation box body, a large number of bubbles will be generated inside the liquid of the oil-water mixture. The bubbles float up and bring the oil and its sludge in the liquid to the liquid surface. By adjusting the liquid level regulating plate to control the liquid level height, the oil and its sludge on the liquid surface flow into the waste oil collection tank through the oil outlet pipe. Thus, the negative pressure oil-water separation device has a significant separation effect on the oil-water mixed liquid.

[0013] 2. A liquid level gauge is vertically arranged in the water return tank, and an oil tank liquid level gauge is vertically arranged in the waste oil collection tank.

[0014] So as to facilitate understanding the liquid level conditions of the liquid in the water return tank and the waste oil in the waste oil collection tank, and to discharge the liquid and waste oil from the water return tank and the waste oil collection tank in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall structural schematic diagram of a negative pressure oil-water separation device in an embodiment;

[0016] Figure 2 is the front view of a negative pressure oil-water separation device in an embodiment;

[0017] Figure 3 is the structural schematic diagram of the oil outlet end and the water return tank in an embodiment;

[0018] Figure 4 is the structural schematic diagram of the starting end in an embodiment;

[0019] Figure 5 is the schematic diagram of the oil-water mixture flow in an embodiment;

[0020] Figure 6It is a schematic structural diagram of the oil outlet pipe and the waste oil collection tank in the embodiment.

[0021] Reference numerals: 1, separation box body; 11, starting end; 111, separation top cavity; 112, separation connection cavity; 113, separation horizontal cavity; 114, first channel opening; 115, second channel opening; 116, liquid inlet; 117, pressure balance port; 118, installation port; 12, oil outlet end; 13, water return tank; 131, liquid discharge port; 132, liquid level gauge; 14, inspection and cleaning port; 2, vacuum generator; 3, oil outlet pipe; 4, waste oil collection tank; 41, oil tank liquid level gauge; 42, oil pumping port; 5, partition board; 51, end partition board; 52, side partition board; 6, liquid level adjustment board. Detailed implementation manners

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the following Figure 1-6 is further described in detail with reference to the attached

[0023] Reference Figure 1 , Figure 2 and Figure 3 , a negative pressure oil-water separation device includes a separation box body 1, a vacuum generator 2, an oil outlet pipe 3 and a waste oil collection tank 4. The separation box body 1 can be divided into a starting end 11, an oil outlet end 12 and a water return tank 13 inside. The two ends of the oil outlet end 12 are respectively communicated with the starting end 11 and the oil discharge end. A liquid level adjustment board 6 is arranged inside the separation box body 1, and the arranged liquid level adjustment board 6 is located between the oil outlet end 12 and the water return tank 13. The waste oil collection tank 4 is located on the separation box body 1, and the two ends of the oil outlet pipe 3 are respectively communicated with the oil outlet end 12 of the separation box body 1 and the waste oil collection tank 4. The vacuum generator 2 is fixedly arranged at the top end of one side of the separation box body 1 and is communicated with the inside of the separation box body 1, and the vacuum generator 2 is used to generate negative pressure inside the separation box body 1.

[0024] Reference Figure 4 and Figure 5, a number of partition plates 5 are arranged in the separation box body 1. The number of partition plates 5 can be divided into a number of end partition plates 51 and a number of side partition plates 52. Among them, the starting end 11 of the separation box body 1 is in a "C" shape. The inside of the starting end 11 of the separation box body 1 can be divided into a separation top cavity 111, a separation connection cavity 112, and a separation horizontal cavity 113. Among them, the top end of the separation connection cavity 112 is connected to one side of the bottom end of the separation top cavity 111, and one side of the bottom end of the separation connection cavity 112 is connected to the separation horizontal cavity 113. A number of end partition plates 51 are vertically arranged in the separation top cavity 111. The number of end partition plates 51 is evenly distributed along the length direction of the separation top cavity 111 and is respectively fixed to the top wall or the bottom wall of the separation top cavity 111. The end partition plates 51 fixed to the top wall of the separation top cavity 111 and the end partition plates 51 fixed to the bottom wall of the separation top cavity 111 are arranged at intervals, so that a first channel opening 114 is formed between the end partition plates 51 and the separation top cavity 111. A number of side partition plates 52 are vertically arranged in the separation horizontal cavity 113. The number of side partition plates 52 is evenly distributed along the length direction of the separation horizontal cavity 113 and is respectively fixed to the two side walls of the separation horizontal cavity 113, so that a second channel opening 115 is formed between the side partition plates 52 and the separation horizontal cavity 113.

[0025] An inlet port 116, a pressure balance port 117, and an installation port 118 for installing a pressure gauge are formed by opening on the separation top cavity 111 of the starting end 11. Among them, the inlet port 116 is located on one side of the separation top cavity 111, and the pressure balance port 117 and the installation port 118 are arranged at the upper end of the separation top cavity 111. The pressure gauge is installed at the installation port 118. The inlet port 116 is connected to the oil-water mixture through a pipeline. The vacuum generator 2 is used to generate negative pressure inside the separation box body 1, so as to suck the oil-water mixture into the separation box body 1. The pressure balance port 117 of the starting end 11 of the separation box body 1 is provided to balance the pressure in the negative pressure cavity inner core oil return groove, and a pressure gauge is set to observe and understand the internal pressure situation of the separation box body 1.

[0026] Under the negative pressure inside the separation box body 1, a large number of bubbles will be generated inside the liquid of the oil-water mixture. The bubbles float up, bringing the oil and its sludge in the liquid to the liquid surface, and sequentially passing through the first channel opening 114 between each end partition plate 51 and the separation top cavity 111. Subsequently, the oil-water mixture sequentially enters the separation connection cavity 112 and the separation horizontal cavity 113. The oil-water mixture in the separation horizontal cavity 113 sequentially passes through the second channel opening 115 between the side partition plates 52 and the side wall of the separation horizontal cavity 113 until the oil-water mixture enters the oil outlet end 12 of the separation box body 1.

[0027] Refer to Figure 2 and Figure 6, under the negative pressure inside the separation box body 1, a large number of bubbles will be generated inside the liquid of the oil-water mixture. The bubbles float up and bring the oil and its sludge in the liquid to the liquid surface. By adjusting the liquid level regulating plate 6 to control the liquid level height, the oil and its sludge on the surface flow into the waste oil collection tank 4 through the oil outlet pipe 3, and the liquid separated at the bottom layer enters the water return tank 13. In order to enable the staff to conveniently understand the liquid level of the waste oil in the waste oil collection tank 4, an oil tank liquid level gauge 41 is vertically arranged in the waste oil collection tank 4. One end of the oil tank liquid level gauge 41 penetrates out from the top end of the waste oil collection tank 4, and in addition, an oil pumping port 42 is formed by opening at the top end of the waste oil collection tank 4. When the staff learns through the oil tank liquid level gauge 41 that the liquid level of the waste oil in the waste oil collection tank 4 is relatively high, the waste oil in the waste oil collection tank 4 can be pumped to an external waste oil barrel through an oil pump.

[0028] Refer to Figure 3 and Figure 5 , a liquid discharge port 131 is formed by opening at one side bottom end of the water return tank 13. The liquid separated at the bottom layer in the water return tank 13 can be discharged from the liquid discharge port 131, so as to achieve the purpose of oil-water separation. In order to facilitate understanding the liquid level of the liquid entering the water return tank 13, a liquid level gauge 132 is vertically arranged in the water return tank 13, and the liquid level gauge 132 penetrates out from the top end of the water return tank 13. The liquid level gauge 132 is arranged to facilitate the staff to observe and understand the liquid level of the liquid in the water return tank 13. In addition, an inspection and cleaning port 14 is formed by opening at one side of the separation box body 1. The staff can regularly clean the inside of the separation box body 1 from the inspection and cleaning port 14 to prevent the waste oil from accumulating on the inner side wall of the separation box body 1 for a long time.

[0029] The specific implementation principle of the embodiment of the present application is as follows: When it is necessary to separate the oil-water mixed liquid, start the vacuum generator 2. Under the action of the vacuum generator 2, a negative pressure is formed inside the separation box body 1, so as to suck the oil-water mixed liquid from the liquid inlet 116 into the separation top cavity 111 at the starting end 11 of the separation box body 1. The oil-water mixture in the separation top cavity 111 sequentially flows through the first channel port 114 between the end partition plate 51 and the separation top cavity 111, and then the oil-water mixture sequentially enters the separation connection cavity 112 and the separation horizontal cavity 113. The oil-water mixture entering the separation horizontal cavity 113 flows through each second channel port 115 between the side partition plate 52 and the side wall of the separation horizontal cavity 113, and finally the oil-water mixture flows into the oil outlet end 12 of the separation box body 1.

[0030] Under the negative pressure inside the separation tank body 1, a large number of bubbles will be generated inside the liquid of the oil-water mixture. The bubbles float upward, bringing the oil and its sludge in the liquid to the liquid surface. By adjusting the liquid level regulating plate 6 to control the liquid level height, the oil and its sludge on the liquid surface flow into the waste oil collection tank 4 through the oil outlet pipe 3. The staff can understand the liquid level of the waste oil in the waste oil collection tank 4 through the oil tank liquid level gauge 41. When the liquid level in the waste oil collection tank 4 is relatively high, the waste oil can be pumped out of the waste oil collection tank 4 in time by the oil pump. The liquid separated at the bottom then flows into the water return tank 13. The liquid level of the liquid separated at the bottom in the water return tank 13 can be observed and understood through the liquid level gauge 132. When the liquid level of the liquid separated at the bottom in the water return tank 13 is relatively high, the liquid separated at the bottom can be discharged from the water return tank 13 through the liquid discharge port 131, so as to achieve the purpose of oil-water separation.

[0031] The above has made an exemplary description of the present utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the present utility model is not limited by the above methods. As long as various non-substantive improvements are made by adopting the method concept and technical solution of the present utility model, or the concept and technical solution of the present utility model are directly applied to other occasions without improvement, they are all within the protection scope of the present utility model.

Claims

1. A negative pressure oil-water separation device, characterized in that: It includes a separation box, a vacuum generator, an oil outlet pipe and a waste oil collection tank. The separation box is provided with a liquid level regulating plate and a plurality of partitions. The separation box can be divided into a starting end, an oil outlet end and a return water tank. The oil outlet end is located between the starting end and the return water tank. The liquid level regulating plate is located between the oil outlet and the return water tank, the two ends of the oil outlet pipe are respectively connected to the waste oil collection tank and the oil outlet of the separation box, and the vacuum generator is arranged on the upper end of the separation box starting end and is connected to the separation box; The separation box body is provided with a liquid inlet, a liquid discharge port, a pressure balance port and an installation port for installing a pressure gauge at the starting end thereof; the liquid inlet is arranged above one side of the starting end of the separation box body; the installation port and the pressure balance port are both arranged at the top end of the starting end of the separation box body; and the liquid discharge port is arranged at the bottom end of one side of the return water tank.

2. A negative pressure oil-water separation device according to claim 1, characterized in that: A liquid level meter is vertically arranged in the water return tank, and the liquid level meter is penetrated from the top of the water return tank.

3. The negative pressure oil-water separation device according to claim 1, characterized in that: An oil tank level gauge is vertically arranged in the waste oil collection tank, and the oil tank level gauge is penetrated from the top of the waste oil collection tank.

4. A negative pressure oil-water separation device according to claim 3, characterized in that: The top of the waste oil collection tank is provided with an oil extraction port, and the oil tank level gauge is provided through the oil extraction port.

5. The negative pressure oil-water separation device according to claim 1, characterized in that: An inspection and cleaning port is formed on one side of the separation box.

6. The negative pressure oil-water separation device according to claim 1, characterized in that: The starting end of the separation box body includes a separation top chamber, a separation connecting chamber and a separation horizontal chamber. The separation connecting chamber is vertically arranged, and the two ends of the separation connecting chamber are respectively connected to the separation top chamber and the separation horizontal chamber. The partition includes a plurality of end partitions and a plurality of side partitions. A plurality of the end partitions are vertically fixed in the separation top chamber, and a plurality of the end partitions are fixed to the top or bottom of the separation top chamber. The end partition fixed to the top of the separation top chamber and the end partition fixed to the bottom of the separation top chamber are spaced apart, and a first channel opening is formed between the end partition and the separation top chamber.

7. A negative pressure oil-water separation device according to claim 6, characterized in that: The side baffles are arranged along the length direction of the separation horizontal cavity, and the side baffles are fixedly arranged on the two side walls of the separation horizontal cavity at intervals, and a second channel opening is formed between the side baffles and the separation horizontal cavity.

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