JP3101559U - Oil-water separator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely perform oil-water separation and to facilitate oil-water separation work.
SOLUTION: An oil / water separating means 3 is provided adjacent to a factory building 2, an oil / water separating means 4 is provided adjacent to the oil / water separating means 3, and a drainage portion of the factory building 2 is connected to the oil / water separating means 3 by a connecting groove 20. The outlet of the oil / water separator 3 is connected to the inlet of the oil / water separator 4, and the outlet of the oil / water separator 4 is connected to a gutter 5 provided along the vehicle dismantling plant site 1. The reservoir groove 6 is provided in the connection groove 22 connecting the outflow portion of the oil / water separation means 3 and the inflow portion of the oil / water separation means 4, and the oil reservoir tank is attached to the oil / water separation means 4 by a magnet. Are connected by a connection pipe 43, and the pump 9 is provided on the connection pipe 43.
[Selection diagram] Fig. 1

Description

  The present invention relates to an oil-water separator for separating wastewater containing oil from a waste treatment plant such as a vehicle dismantling plant into water and oil.

  In a conventional oil-water separator, as shown in Patent Document 1, an opening is provided in a side wall portion of a separating unit main body, and a water level determining plate is provided downstream of a portion where the opening of the separating unit main body is provided, and an opening is provided. Is located above the upper end of the water level determination plate, and a baffle plate having a communication portion at the bottom is provided between the portion of the separation means main body where the opening is provided and the water level determination plate.

  In such an oil-water separation device, oil flows out of the separation means main body through the opening, so that there is no need to pump oil floating on water from within the separation means main body, so that oil-water separation work is easy. is there.

Japanese Utility Model Registration No. 3095559

  However, such an oil-water separation device may not be able to reliably perform oil-water separation.

  The present invention has been made to solve the above-described problem, and an object of the present invention is to provide an oil-water separation device that can reliably perform oil-water separation and that can easily perform an oil-water separation operation.

  In order to achieve this object, according to the present invention, an opening is provided in a side wall of the first separating means main body, and the first water level determining means is provided downstream of a portion of the first separating means main body provided with the opening. A plate is provided, and the lower end of the opening is located above the upper end of the first water level determining plate. The portion of the first separating means main body where the opening is provided and the first water level determining plate A first oil / water separator provided with a first baffle plate having a communication portion at the bottom between the first oil / water separator, and an oil reservoir tank connected to an outlet of the first oil / water separator and provided on a side wall of the second separator main body. A second water level determination plate is provided downstream of a portion of the second separation unit main body where the oil reservoir tank is mounted, and an upper end of the oil reservoir tank is connected to an upper end of the second water level determination plate. The oil sump of the second separating means main body. A second baffle plate provided with a second baffle plate having a communication portion at the bottom between a portion where the oil tank is attached and the second water level determination plate; And the inflow portion of the oil-water separation means is connected by a first connection pipe, and a pump is provided in the first connection pipe.

  In this case, the oil reservoir tank may be attached to the side wall of the second separating unit main body by a magnet.

  In addition, a reservoir may be provided in a connection groove connecting the first oil / water separation unit and the second oil / water separation unit.

  In this case, the drainage section of the vehicle storage location may be connected to the reservoir.

  In this case, the drainage portion of the vehicle storage location and the reservoir may be connected by a second connection pipe formed of a square pipe.

  In the oil-water separation device according to the present invention, since the first oil-water separation means and the second oil-water separation means are provided, the drainage discharged from the first oil-water separation means contains oil for some reason. In this case, water and oil can be separated by the second oil / water separation means, so that oil / water separation can be reliably performed, and the oil separated from water by the first oil / water separation means has an opening. The oil discharged through the first separating means main body through the first separating means main body and further separated from the water by the second oil / water separating means is returned to the first oil / water separating means via the oil reservoir tank. It is not necessary to pump up the oil floating on the water from within the main body of the separating means, so that the oil / water separating operation is easy.

  Further, when the oil reservoir is attached to the side wall of the second separating means main body by a magnet, the height of the upper end of the oil reservoir can be freely adjusted.

  Also, when a reservoir is provided in the connection groove connecting the first oil / water separation means and the second oil / water separation means, it is confirmed whether or not the drainage from the first oil / water separation means contains oil. be able to.

  Further, when the drainage section of the vehicle storage location is connected to the reservoir, oil contained in the drainage of the vehicle storage location can be separated by the second oil-water separation means.

  Further, when the drainage portion of the vehicle storage location and the reservoir are connected by the second connection pipe made of a square pipe, it is possible to prevent the second connection pipe from being damaged by an earthquake or the like.

  FIG. 1 is a schematic view showing a vehicle dismantling plant having the oil-water separation device according to the present invention, FIG. 2 is a plan view showing the first oil-water separation means shown in FIG. 1, and FIG. 3 is a sectional view taken along line AA of FIG. FIG. 4 is a plan view showing the second oil / water separation means shown in FIG. 1, and FIG. 5 is a sectional view taken along line BB of FIG.

  As shown in FIG. 1, a factory building 2 is provided in a vehicle dismantling factory site 1, a first oil-water separation unit 3 is provided adjacent to the factory building 2, and a first oil-water separation unit 3 is provided adjacent to the oil-water separation unit 3. The oil / water separation means 4 is provided, the drainage part of the factory building 2 is connected to the inflow part of the oil / water separation means 3, the outflow part of the oil / water separation means 3 is connected to the inflow part of the oil / water separation means 4, and the oil / water separation means is provided. The outlet of the means 4 is connected by a connection groove 36 to a gutter 5 provided along the vehicle dismantling factory site 1. In addition, the reservoir 6 is provided in the connection groove 22 that connects the outflow portion of the oil / water separation means 3 and the inflow portion of the oil / water separation means 4, a vehicle storage location 10 is provided in the vehicle dismantling factory site 1, and a vehicle storage location is provided. Ten drainage parts are connected to the reservoir 6 and the outflow part of the oil / water separation means 4 via a second connection pipe 52 composed of a square pipe. That is, the end of the branch portion 52a of the connection pipe 52 is connected to the reservoir 6, and the end of the branch portion 52b of the connection pipe 52 is connected to the connection groove 36. Further, blocking devices 7 and 8 are provided in the branch portions 52a and 52b, respectively. The oil / water separation means 3 and 4 are embedded in the ground, and the upper ends of the oil / water separation means 3 and 4 are almost the same height as the ground surface.

  As shown in FIGS. 2 and 3, an oil reservoir 12 is provided integrally with the first separating means main body 11 of the oil / water separating means 3, and an inflow portion 13 is provided on a front wall 11 a of the separating means main body 11. An outflow portion 14 is provided on a rear wall 11 b of the separation means main body 11, and the inflow portion 13 is connected to a drainage portion of the factory building 2 by a connection groove 20. Further, a plurality of first dam plates 15 whose lower ends are fixed to the bottom of the separating unit main body 11 and whose upper ends are located below the upper end of the separating unit main body 11 are provided on the separating unit main body 11. Are equal, and the height of the weir plate 15 (the distance from the bottom surface of the separation means main body 11 to the upper end of the weir plate 15) is 1.75 m. Further, a plurality of first baffle plates whose lower ends are higher than the bottom of the separation means main body 11 and whose upper ends are sufficiently higher than the upper end of the weir plate 15 on the inflow portion 13 side of the weir plate 15 and the outflow unit 14. 16, the plurality of weir plates 15 and the plurality of baffle plates 16 are substantially parallel to each other, and the rear wall 11 b of the separation unit main body 11 serves as a first water level determination plate for determining the water level on the downstream side of the baffle plate 16. Correspondingly, the height of the weir plate 15 is lower than the height of the bottom of the outflow portion 14 (the height of the first water level determination plate). Further, a first settling chamber 24 is formed between the inflow portion 13 and the first dam plate 15a from the inflow portion 13 side, and the first settling chamber 24 is formed between the dam plate 15a and the first baffle plate 16a from the inflow portion 13 side. A first oil / water separation chamber 21 is formed therebetween. Further, an opening 17 is provided at a portion between the weir plate 15a and the baffle plate 16a of the side wall 11c on the oil reservoir 12 side of the separation means main body 11, and the vertical distance between the lower end of the opening 17 and the bottom of the outflow portion 14 is 4 cm. As described above, the opening 17 is provided in the side wall 11c of the separation unit main body 11, the first water level determination plate is provided downstream of the portion where the opening 17 of the separation unit main body 11 is provided, and the lower end of the opening 17 is provided. A baffle plate (16) having a communicating portion at the bottom is provided between the portion of the separating means main body (11) provided with the opening (17) and the first water level determining plate, which is located above the upper end of the first water level determining plate. ing. The oil-water separation means 3 is double-plated with zinc.

  As shown in FIGS. 4 and 5, the inflow portion 32 is provided on the front wall 31a of the second separation means main body 31 of the oil / water separation means 4, and the outflow portion 33 is provided on the rear wall 31b of the separation means main body 31. The inflow portion 32 is connected to the outflow portion 14 by the connection groove 22, and the outflow portion 33 is connected to the side groove 5 by the connection groove 36. Further, the separation means main body 31 is provided with a plurality of second dam plates 34 whose lower ends are fixed to the bottom of the separation means main body 31 and whose upper ends are located below the upper end of the separation means main body 31. And the height of the weir plate 34 (the distance from the bottom surface of the separating means main body 31 to the upper end of the weir plate 34) is 1.75 m. Also, a plurality of second baffle plates whose lower ends are higher than the bottom of the separation means main body 31 and whose upper ends are sufficiently higher than the upper end of the weir plate 34 on the inflow portion 32 side of the weir plate 34 and the outflow unit 33. A plurality of weir plates 34 and a plurality of baffle plates 35 are substantially parallel to each other, and a rear wall 31b of the separation unit main body 31 serves as a second water level determination plate for determining a water level on the downstream side of the baffle plate 35. Correspondingly, the height of the weir plate 34 is lower than the height of the bottom of the outflow portion 33 (the height of the second water level determination plate). Further, a second settling chamber 38 is formed between the inflow portion 32 and the first dam plate 34a from the inflow portion 32 side, and the second settling chamber 38 is formed between the dam plate 34a and the first baffle plate 35a from the inflow portion 32 side. A second oil / water separation chamber 37 is formed between them. An oil sump tank 39 is attached to a portion of the side wall 31c of the separating means main body 31 between the dam plate 34a and the baffle plate 35a by a magnet (not shown), and an upper end of the oil sump tank 39 and a bottom of the outflow portion 33 are provided. Is 2 cm in the vertical direction. Then, a lid (not shown) is covered on the upper part of the oil-water separation means 4. As described above, the oil / water separator 4 is connected to the outlet 14 of the oil / water separator 3, the oil reservoir tank 39 is attached to the side wall 31 c of the separator main body 31, and the oil reservoir tank 39 of the separator main body 31 is attached. A second water level determining plate is provided downstream of the portion, the upper end of the oil reservoir tank 39 is positioned above the upper end of the second water level determining plate, and the oil reservoir tank 39 of the separation means main body 31 is attached. A baffle plate 35 having a communicating portion at the bottom is provided between the bent portion and the second water level determining plate. The oil-water separation means 4 is double-plated with zinc.

  FIG. 6 is a cross-sectional view showing the oil reservoir tank shown in FIGS. As shown in the figure, a bottomed cylinder 42 is connected to the bottom of the main body 41 of the oil reservoir 39, one end of a first connection pipe 43 is connected to a side of the bottomed cylinder 42, and The other end is connected to the connection groove 20 (inflow portion 13), and the pump 9 is provided in the connection pipe 43.

  7A and 7B are views showing the reservoir shown in FIG. 1, wherein FIG. 7A is a partially cut plan view, and FIG. 7B is a front sectional view. As shown in the figure, an end of a branch portion 54 a of the connection pipe 54 is connected to a side portion of the main body 51 of the storage basin 6.

  In this oil-water separator, when the wastewater containing oil flows from the factory building 2 through the connection groove 20 into the inflow portion 13 of the oil-water separation means 3, the specific gravity of the oil is smaller than the specific gravity of water. As shown, the water 61 and the oil 62 are separated in the oil / water separation chamber 21, and the oil 62 floats on the water 61. Since the baffle plate 16a is provided between the oil / water separation chamber 21 and the rear wall 11b, the oil 62 does not flow downstream of the oil / water separation chamber 21. As described above, since the specific gravity of the oil is smaller than the specific gravity of the water, the oil level 62a of the oil 62 is higher than the upper end of the portion of the rear wall 11b where the outflow portion 14 is provided, that is, the bottom (water surface 61a) of the outflow portion 14. Is also located above, and the vertical distance between the oil surface 62a and the water surface 61a increases as the thickness of the oil layer 62 in the oil / water separation chamber 21 increases. For example, if the height from the boundary between the water 61 and the oil 62 in the oil / water separation chamber 21 to the water surface 61a of the water 61 is 1 m, the ratio of the specific gravity of water to oil is about 10: 9. The thickness of the layer of oil 62 in the chamber 21 is about 1 m10 cm, and the oil level 62a is located about 10 cm above the water level 61a. For this reason, when the thickness of the layer of the oil 62 in the oil-water separation chamber 21 is increased to some extent, the oil surface 62 a is located above the lower end of the opening 17, so that the oil 62 flows into the oil reservoir 12 through the opening 17. I do. On the other hand, the water 61 is discharged from the outflow portion 14 through the communication portion at the bottom of the baffle plate 16.

  When the drainage discharged from the outlet 14 of the oil / water separator 3 contains oil for some reason, the drainage containing the oil via the connection groove 22 and the reservoir 6 is transferred to the inlet of the oil / water separator 4. 32. In this case, as shown in FIG. 9, water 61 and oil 62 are separated in the oil / water separation chamber 37, and the oil 62 floats on the water 61. Since the baffle plate 35a is provided between the oil / water separation chamber 37 and the rear wall 31b, the oil 62 does not flow downstream of the oil / water separation chamber 37. The oil surface 62b of the oil 62 is located above the upper end of the portion of the rear wall 31b where the outflow portion 14 is provided, that is, above the bottom (water surface 61b) of the outflow portion 14, and the layer of the oil 62 in the oil / water separation chamber 37. The vertical distance between the oil surface 62a and the water surface 61a increases as the thickness increases. For this reason, when the thickness of the layer of the oil 62 in the oil-water separation chamber 37 is increased to some extent, the oil surface 62 a is located above the upper end of the oil reservoir 39, so that the oil 62 flows into the oil reservoir 39. The oil 62 flowing into the oil reservoir tank 39 is returned by the pump 9 to the inflow portion 13 of the oil / water separation means 3 via the connection pipe 43. On the other hand, the water 61 is discharged from the outflow portion 33 through the communicating portion at the bottom of the baffle plate 35, and the drainage from the oil / water separation means 4 is flowed to the side groove 5 via the connection groove 36.

  When the drainage from the vehicle storage location 10 does not contain oil, the shielding means 7 is operated and the shielding means 8 is not activated, and the drainage from the vehicle storage location 10 is connected to the connection pipe 52 (branch 52b). , And flows into the side groove 5 via the connection groove 36. When the drainage from the vehicle storage location 10 contains oil, the drainage from the vehicle storage location 10 is supplied to the reservoir 6 with the shielding means 7 not operating and the shielding means 8 operating. The oil in the drainage from the vehicle storage location 10 is separated by the oil / water separation means 4 as described above.

  In such an oil / water separation device, since the oil / water separation means 3 and the oil / water separation means 4 are provided, when oil is contained for some reason in the wastewater discharged from the outlet 14 of the oil / water separation means 3, Also, since oil and water can be separated by the oil-water separation means 4, oil-water separation can be reliably performed. In addition, since the oil separated from the water in the oil-water separation chamber 21 flows into the oil reservoir 12 through the opening 17, there is no need to pump the oil floating on the water from the inside of the separation means main body 11. Since the oil separated from the water in the separation chamber 37 is returned to the inflow portion 13 of the oil / water separation means 3 via the oil reservoir tank 39, there is no need to pump the oil floating on the water from within the separation means main body 31. Therefore, the oil-water separation operation is easy. Further, since the oil reservoir 39 is attached to the side wall 31c by the magnet, the height of the upper end of the oil reservoir 39 can be freely adjusted. Further, since the reservoir 6 is provided in the connection groove 22 that connects the outflow portion 14 of the oil / water separator 3 and the inflow portion 32 of the oil / water separator 4, oil exists on the surface of the drainage in the reservoir 6. Whether or not oil is contained in the wastewater from the oil / water separation means 3 can be confirmed based on whether or not the oil is contained. Further, since the drainage portion of the vehicle storage location 10 and the storage basin 6 are connected via the connection pipe 52 (branch portion 52a), the oil contained in the drainage of the vehicle storage location 10 is separated by the oil-water separation means 4. be able to. Further, since the connecting pipe 52 is formed of a square pipe, it is possible to prevent the connecting pipe 52 from being damaged by an earthquake or the like. Further, since the oil / water separation means 3 and 4 are buried in the ground and the upper ends of the oil / water separation means 3 and 4 are almost the same height as the surface of the ground, an object can be placed on the oil / water separation means 3 and 4. Further, since the oil / water separation means 3 and 4 are double-plated with zinc, corrosion of the oil / water separation means 3 and 4 can be prevented.

  In the above-described embodiment, the vertical distance between the lower end of the opening 17 and the bottom of the outflow portion 14 was 4 cm, and the vertical distance between the upper end of the oil reservoir 39 and the bottom of the outflow portion 33 was 2 cm. However, the lower end of the opening may be located above the upper end of the first water level determining plate, and the upper end of the oil reservoir may be located above the upper end of the second water level determining plate. Further, in the above-described embodiment, the oil reservoir 12 is provided integrally with the separation means main body 11, but an oil discharge pipe may be connected to the opening without providing the oil reservoir.

FIG. 2 is a schematic view showing a vehicle dismantling plant having the oil-water separation device according to the present invention. It is a top view which shows the 1st oil-water separation means shown in FIG. It is AA sectional drawing of FIG. It is a top view which shows the 2nd oil-water separation means shown in FIG. FIG. 5 is a sectional view taken along line BB of FIG. 4. It is sectional drawing which shows the oil reservoir tank shown in FIG. 4, FIG. FIG. 2 is a diagram illustrating a reservoir shown in FIG. 1. It is operation | movement explanatory drawing of the oil-water separation apparatus shown in FIGS. It is operation | movement explanatory drawing of the oil-water separation apparatus shown in FIGS.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 3 ... 1st oil-water separation means 4 ... 2nd oil-water separation means 6 ... Reservoir 9 ... Pump 10 ... Vehicle storage place 11 ... 1st separation means main body 11c ... Side wall 16 ... 1st baffle plate 17 ... Opening 31 ... Second separating means main body 31c Side wall 35 Second baffle plate 39 Oil reservoir tank 43 First connection pipe 52 Second connection pipe

Claims (5)

An opening is provided in a side wall of the first separating means main body, a first water level determining plate is provided on a downstream side of a portion of the first separating means main body in which the opening is provided, and a lower end of the opening is provided in the first separating means main body. A first obstruction having a communicating portion at the bottom between the portion of the first separating means main body where the opening is provided and the first water level determining plate. First oil-water separation means provided with a plate;
Connected to the outlet of the first oil / water separator, an oil reservoir tank is mounted on a side wall of the second separator main body, and a downstream side of a portion of the second separator main body to which the oil reservoir is mounted. A second water level determining plate, an upper end of the oil reservoir tank is positioned above an upper end of the second water level determining plate, and a portion of the second separating means body to which the oil reservoir tank is attached. And a second oil / water separation unit provided with a second baffle plate having a communication part at the bottom between the second water level determination plate and the second water level determination plate,
An oil / water separator, wherein the oil reservoir and the inflow portion of the first oil / water separator are connected by a first connection pipe, and a pump is provided in the first connection pipe.   2. The oil / water separator according to claim 1, wherein said oil reservoir tank is attached to a side wall of said second separating means main body by a magnet.   The oil / water separation device according to claim 1, wherein a reservoir is provided in a connection groove connecting the first oil / water separation unit and the second oil / water separation unit.   4. The oil / water separator according to claim 3, wherein the drainage section of the vehicle storage area is connected to the reservoir.   The oil / water separator according to claim 4, wherein the drainage part of the vehicle storage location and the reservoir are connected by a second connection pipe made of a square pipe.

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