JP5462744B2 - Interceptor - Google Patents

Description

The present invention relates to a interceptor that removes and separates dredging, earth and sand, and oil and fat contained in waste water.

In recent years, a shallow grease interceptor that fits within the cinder concrete 2 as shown in FIG. Demand is increasing.
Conventionally, a grease interceptor of this type has a drainage inflow portion 7 formed on one side of a rectangular container body 6 and a drainage outflow portion 8 on the other side. The first separation chamber A provided with the basket 11 for removing the soot contained in the drainage on the drainage inflow portion 7 side, and the second separation chamber B in which the central portion floats and separates fats and oils using the difference in specific gravity between water and oil The drainage outflow portion 8 side is partitioned from the third separation chamber C, and each separation chamber is communicated below the partition plates 9 and 10.
In the third separation chamber C, there is a trap section 12 that seals backflow of odors, fungus generation and pests (hereinafter referred to as “odor”, etc.) from downstream of the drainage outflow section 8, specifically for piping. A trap tube 13 such as a 90 ° elbow is used. Then, one side of the trap pipe 13 is connected to the drainage outflow part 8, and the other end is used as a trap pipe inlet 13a opened downward so as to be below the water level of the trap part (hereinafter referred to as a first conventional example). .

  Further, in the grease interceptor shown in FIG. 5, a dam plate 14 is provided to the full width of the container body 6 in front of the trap tube 13 in the third separation chamber C. By providing this weir plate 14, only the waste water flows into the third separation chamber C so that the residue deposited on the bottom of the container body 6 does not enter the trap portion (hereinafter referred to as a second conventional example). .

Further, in the grease interceptor shown in FIG. 6, a trap plate 15 is provided on the partition plate 10 side instead of the trap pipe 13 in the third separation chamber, and the weir plate 14 is filled to the full width of the container body 6 on the drainage outflow portion 8 side. Provided. In this configuration, the difference in height between the lower end of the trap plate 15 and the upper end of the weir plate 14 is the sealed water depth D, and even in a shallow container body, the seal exceeds the standard defined by SHASE-S (Air Conditioning and Sanitary Engineering Association Standard). It becomes easy to keep the water depth.
However, since the upper part of the trap part on the drainage outflow part 8 side is opened from the trap plate 15, the odor from the downstream drainage pipe side flows back into the kitchen as it is. Therefore, as a countermeasure, as shown in FIG. 7, a cover portion 16 that covers the entire upper portion of the trap portion without gaps is provided separately. Further, since it is desirable to provide an inspection opening that can be opened and closed so that the inside of the trap portion can be inspected and cleaned, the lid portion 16 has a lid 17, a hinge 18, and a packing 19 and a presser fitting 20 for holding the lid 17 in a sealed state. (Hereinafter referred to as a third conventional example, Patent Document 1).

Utility model registration No. 3060606

According to the first conventional example described above, the gap between the trap tube inlet 13a and the bottom surface of the container body 6 is small, and the drainage force is increased at the narrow trap tube inlet 13a to deposit on the bottom of the container body 6. There is a risk that the residue will be discharged with the drainage. Further, since the trap pipe 13 is fixed to the drainage outlet 8 and the trap pipe inlet 13a is opened downward, it is very difficult to clean the inside of the trap pipe 13.
Therefore, in order to solve the problem of the first conventional example, there is a grease interceptor provided with the dam plate 14 as in the second conventional example, but the water level on the side beyond the dam plate 14 is the inner diameter of the drainage outflow portion 8. Since it becomes equal to the lower surface, there is a risk that the depth D (sealing depth) between this water level and the trap pipe inlet 13a will be 50 mm or less, which is required by SHASE-S or the like.
In addition, according to the above-described third conventional example, since the dam plate 14 is provided to the full width of the container body 6, the drainage speed over the dam plate 14 is suppressed, and the first conventional example is the same as the first conventional example. There is an effect that there is less possibility of sucking out the accumulated residue. However, the grease interceptor body, partition plate and barrier plate are usually made of stainless steel, FRP, etc., and the trap part including the lid part is usually made of the same material used for the body. Further, it takes more time for manufacturing than a trap tube such as an elbow tube made of polyvinyl chloride or the like for the trap portion, and the manufacturing cost is relatively high.

Therefore, the present invention has been made in view of the above-mentioned problems, and the object of the present invention is to treat a relatively large amount of wastewater even with a shallow and small interceptor, and to leave a residue deposited on the bottom of the container body. It is an object of the present invention to provide a trap with a trap part that does not flow out together with drainage, is easy to clean, is easy to manufacture, and is low-cost.

At least a first separation chamber provided with a basket into which drainage flows into the container body of the interceptor, a second separation chamber that floats and separates fats and oils using the difference in specific gravity between water and oil, A trap having a trap part for preventing a reverse flow of odor or the like, wherein the trap part is cantilevered by the drainage outflow part and is located lower than the lower part of the drainage outflow part with a sealing depth D The lower end is immersed in the drainage in the container body and has a surrounding shape that guides the drainage to the drainage outflow part, and the upper end is positioned higher than the lower part of the drainage outflow part, and determines the standard water level surface of the drainage in the container body A dam plate, characterized in that the dam plate has a width larger than the inner diameter of the drainage outflow portion .

  According to the present invention, a compact box shape having an overflow type weir plate that has an effect of suppressing an increase in local flow velocity at the trap inlet enables a relatively large amount of small and shallow type interceptors. Wastewater can be treated, and it becomes easy to install appropriate interceptors with high interception efficiency even in narrow commercial kitchens.

It is sectional drawing seen from the side which shows the embedding state of the grease interceptor which concerns on a present Example. It is a top view of the grease interceptor which concerns on a present Example. It is a perspective view of the trap which concerns on a present Example. (A) is the perspective view which looked at the trap from the front, (b) is the perspective view which looked at the trap from the lower part, (c) is the perspective view which looked at the trap from back. It is sectional drawing seen from the side which shows the embedding state of the grease interceptor of a 1st prior art example. It is a side view sectional view of the grease interceptor of the 2nd conventional example. It is sectional drawing of the side view of the grease interceptor of a 3rd prior art example. It is a top view of the grease interceptor of a 3rd prior art example.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the parts indicated by the same reference numerals as those in the conventional example indicate the same or corresponding parts.

  FIG. 1 shows a state in which the grease interceptor 1 of this embodiment is buried under the floor of a kitchen. The grease interceptor 1 has a depth that can be accommodated in the cinder concrete 2 that is a surface layer portion without opening the slab concrete 3 that defines a fire prevention section in the building, and a drainage groove ( (Or drain pipe) 4 is installed so as to receive the waste water flowing in. On the drainage groove 4 and the grease interceptor 1, a lid member 5 such as a grating or a steel plate is provided.

The grease interceptor 1 is formed with a drainage inflow portion 7 on one side of a square-shaped container body 6 and a drainage outflow portion 8 on the other side. A first separation chamber A provided with a basket 11 for removing the soot contained in the drainage side, and then a second separation chamber B that floats and separates oils and fats using a difference in specific gravity between water and oil. The separation chamber A and the separation chamber B communicate with each other below the partition plate 9.

  The trap part 12 which seals backflows, such as a odor from downstream of the waste_water | drain outflow part 8, is provided in said 2nd separation chamber, Specifically, as shown in FIGS. A box-shaped trap 21 is connected to the drainage outflow portion 8, and drainage from which dredging and oil and fat have been removed is guided downstream of the drainage outflow portion 8.

  The trap 21 includes a front plate 21a provided in parallel to the partition plate 9 in plan view, left and right side plates 21b on both sides of the front plate 21a, a top plate 21c having an opening for inspection and cleaning on the upper surface, and a drainage outlet 8 On the side is a box surrounded by a rear plate 21d having an outlet and a bottom plate 21e connected to the rear plate 21d. Further, a dam plate 21f is provided in front of the bottom plate 21e so as to face upward in a side view, and the upper end of the dam plate 21f is positioned higher than the lower part of the drainage outflow portion 8, and the left and right side plates 21b and the bottom plate are arranged. A water reservoir P surrounded by 21e, the rear plate 21d and the barrier plate 21f is formed.

The trap 21 is provided with a connecting pipe 21 g for guiding the drainage flowing into the trap 21 to the downstream of the drainage outflow portion 8, and is connected and fixed to the drainage outflow portion 8.

  Now, the lower end of the front plate 21a is positioned slightly above the bottom surface of the container body 6 so that the waste water flowing from the upstream flows into the box, but the left and right side plates 21b are cantilevered by the connecting pipe 21g. In order to support the trap 21, a part of the front lower end portion is attached to the bottom surface of the container body 6 to support the trap 21. The other lower ends of the left and right side plates 21b are positioned slightly above the bottom surface of the container body 6 so that drainage flowing from the upstream flows into the trap 21 as in the case of the front plate 21a. Is located lower than. The position is the same as the lower end height of the front plate 21a, and is also the bottom surface height of the bottom plate 21f forming the water reservoir P. However, the bottom surface height of the water reservoir P may be lower than the lower end height of the front plate 21a.

  The height of the upper end of the weir plate 21f determines a standard water level surface WL which is a water level in a state where no oil or fat has floated in the grease interceptor, and the drainage water flows over the drainage outflow portion 8 and flows downstream. The difference between the height of the upper end of the weir plate 21f and the lower end of the front plate 21a determines the sealing depth D in the grease interceptor of this embodiment, and is surrounded by the front plate 21a, the left and right side plates 21b, and the weir plate 21f. The sealed portion SW is formed at the location.

  Furthermore, it is desirable that the left-right width of the dam plate 21f be wider than the inner diameter of the drainage outflow portion 8. When the left and right width of the weir plate 21f is narrow, the speed of the wastewater flowing into the trap 21 from the sealed water portion SW over the weir plate 21f increases, and the residue accumulated on the bottom of the separation chamber and the floating separation are separated. Since there is a risk of entraining and flowing out the oils and fats that have been used, such a problem can be avoided by ensuring a width of at least 1.5 times the inner diameter.

  Even in a narrow kitchen in which only a small container body 6 of the grease interceptor can be installed, the processing capacity of the grease interceptor can be improved by adopting the one having a wide width of the dam plate 21f.

  The top plate 21c provided with an opening for inspecting and cleaning the inside of the trap 21 has a slope that becomes lower toward the front plate for easy inspection and cleaning, but of course it does not have to be inclined. . Furthermore, a cap 21h is attached to the opening so that odors and the like do not leak from the trap portion, but a known method can be selected for the shape and attachment of the cap.

  In addition, the trap 21 is not limited to a box, but can have a necessary sealing depth D and a standard water level surface WL, and has a width that can suppress the speed of drainage that flows over the weir plate. A shape having a shape is also possible, as long as the drainage in the container body 6 is exclusively guided to the downstream of the drainage outflow portion 8. Further, in this embodiment, the trap 21 cantilevered by the connection portion 21g is supported by attaching a part of the lower end portion of the left and right side plates 21b to the bottom of the container body 6, but this support portion may be provided at other locations. Good.

Further, in this embodiment, the outer wall surrounding the trap 21 serves as a partition plate for partitioning the oil and fat floated and separated in the second separation chamber, so that only one partition plate in the container body 6 is used. The number of partition plates may be two or more.

  Further, the trap 21 can be replaced with a trap pipe of a conventional grease interceptor that uses a trap pipe such as an elbow pipe in the trap portion. However, the interception efficiency can be improved.

The trap 21 can be formed of polyvinyl chloride, and the manufacturing cost can be reduced.

  In the embodiment, the grease interceptor has been described as an example, but it can be used as an oil interceptor, and the same effect can be obtained.

1 Grease interceptor 6 Container body 7 Drain inflow section 8 Drain outflow section 9 Partition plate 11 Basket 21 Trap 21a Front plate 21f Weir plate A First separation chamber B Second separation chamber D Sealing depth SW Sealing portion WL Standard water level surface

Claims (5)

At least a first separation chamber provided with a basket into which drainage flows into the container body of the interceptor, a second separation chamber that floats and separates fats and oils using the difference in specific gravity between water and oil, A trap with a trap that prevents backflow of odors,
The trap part is cantilevered by the drainage outflow part, and a lower end positioned below the lower part of the drainage outflow part with a sealing depth D is immersed in the drainage in the container body to guide the drainage to the drainage outflow part. A dam plate having a top shape and an upper end positioned higher than a lower portion of the drainage outflow portion and determining a standard water level surface of the drainage in the container body, the dam plate having a width larger than an inner diameter of the drainage outflow portion The interceptor characterized by having .
At least a first separation chamber provided with a basket into which drainage flows into the container body of the interceptor, a second separation chamber that floats and separates fats and oils using the difference in specific gravity between water and oil, A trap with a trap that prevents backflow of odors,
The trap part is cantilevered by the drainage outflow part, and a lower end positioned below the lower part of the drainage outflow part with a sealing depth D is immersed in the drainage in the container body to guide the drainage to the drainage outflow part. It is a box shape or bowl-like shape that turns over the shark, and its upper end is positioned higher than the lower part of the drainage outflow part, and is a weir plate that determines the standard water level surface of the drainage in the container body. The barrier plate has a width larger than the inner diameter of the drainage outflow portion .
The said trap part has a support part which attaches a lower end part to the bottom face of the said container main body, and supports the said trap part, The interceptor of Claim 1 characterized by the above-mentioned.
Cantilevered drainage outlet portion of the interceptor device, the seal water portion a box-shape as tipped human scepters lower ends positioned lower than the lower of the drainage outflow portion, the upper end of the drainage outflow portion And a weir plate positioned higher than the lower part of the box-type trap.
On the top surface of the box-shaped shape of the water-sealing part, there is a top plate provided with an openable / closable inspection port for inspection and cleaning, and the top plate is directed toward the front plate side of the box-shaped shape. The box-shaped trap according to claim 4, wherein the box-shaped trap has a lower slope.

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