JPS6332212Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention is a grease trap or grease interceptor that separates and collects oil mixed in sewage and discharges only water. It concerns what is called an oil separation trap.

Prior Art A conventional oil separation trap has been constructed as shown in FIG.

The inside of the trap body 01 is partitioned by partition plates 02 and 03 into an inflow chamber 04, an oil separation chamber 05, and an outflow chamber 06, and a dam plate 07 is disposed at the bottom of the oil separation chamber 05. At the same time, a collector 08 is removably fitted into the upper part of the collector 08. During normal use, a large number of parallel inclined plates 09 pivotally attached to the bottom of the collector 08 are opened to drain the oil. Flow the sewage containing oil as shown by the arrow, separate it in the oil separation chamber 05, collect the separated oil in the oil separation chamber 05, and when a certain amount of oil has accumulated, use the collector By grasping the handle 010 of 08, the inclined plate 09 is closed, and in this state, the collector 08 is pulled upward, and the oil accumulated in the oil separation chamber 05 is put into the collector 08 and the oil is removed. It was becoming like that.

Problems to be Solved by the Invention In the oil separation trap shown in FIG. 4, although the inclined plates 09 are open during oil separation, water containing oil passes between the inclined plates 09. Due to the extreme resistance, the inclined plate 09 is moved as shown by the arrow.
The slope plate 09 and the dam plate 0 do not pass through the gap.
7, and there was a strong tendency for the oil to be discharged into the sewer without being sufficiently separated.

Means and Effects for Solving the Problems The present invention relates to an improvement of an oil separation trap that overcomes the above-mentioned difficulties.
The oil separation chamber is equipped with an oil strainer that can be inserted into and removed from above, and an upstream member of the oil strainer located on the inflow side of the oil separation chamber is pivotally mounted to the bottom member so as to be able to rise and fall freely, The other oil strainer side members are provided with many small fluid communication parts, and during oil separation,
The upstream member of the oil strainer is tilted toward the inflow side, and the oil-water mixture flows smoothly into the oil separation field from the adjacent field on the upstream side, and the oil particles are removed in the small fluid passage of the oil strainer side member in the oil separation field. impeding passage;
The flotation and separation of oil in the oil separation chamber can be promoted.

Furthermore, when removing oil, if the oil strainer is lifted upward with the upstream member of the oil strainer erected, the oil separated upward in the oil separation chamber can be scooped up by the oil strainer. .

Embodiment Hereinafter, an embodiment of the present invention illustrated in FIGS. 1 to 3 will be described.

A lid 2 is detachably fitted above a trap body 1 formed into a rectangular parallelepiped shape.

Further, on the front and rear inner surfaces of the trap body 1, grooved ribs 3 oriented in the vertical direction are protruded left and right at a predetermined interval, and a partition plate 4 is fitted into and removed from the grooved ribs 3 from above. The interior of the trap body 1 is divided into an inflow chamber 5, a separation chamber 6, and an outflow chamber 7 by the partition plate 4, except for the bottom.

Further, an inflow connection pipe 8 and an outflow connection pipe 9 are connected to the inflow connection pipe 8 and outflow connection pipe 9, respectively, and an inflow connection pipe 8 and an outflow connection pipe 9 are connected to the inflow connection pipe 8 and the outflow connection pipe 9, respectively, and an inflow pipe 10 and an outflow pipe 11 are connected to the inflow connection pipe 8 and the outflow connection pipe 9, respectively. 12.

Furthermore, a basket strainer 13 is detachably fitted into the inflow chamber 5.

Moreover, an inverted L-shaped pipe 14 is connected to the outflow connection pipe 9, and the inverted L-shaped pipe 14 serves as a trap to prevent the bad odor in the outflow pipe 11 from flowing back into the trap body 1.

An oil strainer 15 is fitted into the separation chamber 6 so as to be able to be fitted and removed from above. The upstream side plate 18 is pivotally connected to the upstream side plate 18 so as to be able to rise and fall freely, the porous side plate 19 is upright on the remaining edge of the bottom plate 16, and the upstream side plate 19 is slidably attached to the front and rear brackets 20 of the porous side plate 19 via pins 21. When fitted, the lower end thereof is connected to the upstream side plate 18.
The handle 22 is pivotally connected to the handle 22.

Since the embodiment shown in FIGS. 1 to 3 is constructed as described above, the inside of the trap body 1 is partitioned into an inflow chamber 5, a separation chamber 6, and an outflow chamber 7 by the partition plate 4. If the oil strainer 15 is fitted into the separate farm room 6 with the side plate 18 laid down horizontally, the sewage flowing through the inflow pipe 10 containing solid matter such as vegetable layers and leftover food will flow into the inlet farm room. When the solids flow into the container 5, the solids are separated and removed by the basket strainer 13.

In addition, the sewage that has passed through the inflow chamber 5 and flowed into the separation chamber 6 flows slowly within the separation chamber 6, and the oil particles contained in the sewage do not encounter any obstacles. Instead, it rises and separates due to the difference in specific gravity. When the sewage passes through the small holes of the porous side plate 19, it becomes difficult for the oil particles in the sewage to pass through the small holes, and only the water in the sewage passes through the small holes, causing the oil particles to pass through the small holes. and water separation is further promoted.

The water separated from the oil flows into the outflow chamber 7 and is inverted L.
It is discharged via the duct 14, the outflow connection pipe 9 and the pipe fitting 12 into the outflow pipe 11.

In this way, in the separation chamber 6, in addition to oil-water separation based on the difference in specific gravity, oil-water separation is performed using the porous side plate 19, so that most of the oil in the sewage is removed from the separation chamber 6.
It is possible to separate and collect the sewage water in the upper part of the tank, and discharge the sewage water containing almost no oil from the outflow pipe 11.

Furthermore, if a considerable amount of oil has accumulated in the separation chamber 6, by holding the handle 22 and pulling it upward, the upstream side plate 18 will be erected upward, as shown in FIG. The oil floating on the water in the trap 6 is scooped into the oil strainer 15 and removed from the trap body 1 to the outside.

In this case, since the oil accumulated in the upper layer of the separation chamber 6 is solidified by staying there for a long period of time, it will not leak from the small holes in the upstream side plate 18.

In addition, the solids that have passed through the basket strainer 13 flow into the separation chamber 6, and the oil strainer 1
5, the precipitated solids are also removed together with the separated oil when the strainer 15 is removed.

In the embodiment described above, the bottom plate 16 and the upstream plate 18
Although it is a flat plate, it may be a perforated plate like the perforated side plate 19, and the perforated side plate 19 may be a wire mesh with small meshes or the like.

Effects of the invention As described above, in the present invention, it is possible to prevent the passage of oil particles in the small fluid passage of the oil strainer side member and promote the floating division of oil in the oil separation chamber, thereby improving oil separation performance. It can be greatly improved.

In addition, since the upstream member of the oil strainer is pivotally attached to the bottom member so that it can be raised and lowered freely, the upstream member of the oil strainer can be laid down horizontally when separating oil and water so that it does not interfere with the flow of sewage, and then the oil can be removed. In some cases, the upstream member of the oil strainer can be erected vertically to prevent oil leakage, so that both oil separation and oil removal can be conveniently performed.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view illustrating an embodiment of an oil separation trap according to the present invention, and FIGS. 2 and 3 are perspective views of an oil strainer in the same embodiment.
The figure shows the upstream side plate in a laid down state, and FIG. 3 shows it in an upright state, and FIG. 4 is a longitudinal sectional front view of a conventional oil separation trap. 1... Trap body, 2... Lid, 3... Grooved rib, 4... Partition plate, 5... Inflow chamber, 6... Separation chamber, 7... Outflow chamber, 8... Inflow connection pipe,
9...Outflow connection pipe, 10...Inflow pipe, 11...
... Outflow pipe, 12 ... Pipe joint, 13 ... Basket strainer, 14 ... Inverted L-shaped pipe, 15 ... Oil strainer, 16 ... Bottom plate, 17 ... Hinge, 18 ...
Upstream side plate, 19... Porous side plate, 20... Bracket, 21... Pin, 22... Handle.

Claims (1)

[Scope of utility model registration request] An oil separation trap in which an oil separation chamber is formed at the lower part and communicates with an adjacent farm is equipped with an oil strainer that is removably inserted into the oil separation chamber from above to prevent inflow into the oil separation chamber. An oil separation trap characterized in that an upstream side member of an oil strainer located on the side is pivotally connected to a bottom member so as to be able to rise and fall freely, and the other oil strainer side member is provided with a large number of small fluid communication parts.