CN219469770U - Oil separation tank - Google Patents

Abstract

The utility model belongs to the field of wastewater treatment, and discloses an oil separation tank which not only can greatly reduce the amount of oil flowing through when the water level of canteen wastewater does not rise above a lower port and further prolong the sedimentation time of canteen wastewater, but also can greatly avoid the occurrence of blockage probability.

Description

Oil separation tank

Technical Field

The utility model belongs to the field of wastewater treatment, and particularly relates to an oil separation tank.

Background

In the wastewater flowing out of the canteen, the oil separation tank is a facility for carrying out preliminary oil-water separation on the wastewater.

At present, the internal structure of the oil separation tank is shown in fig. 1, the canteen wastewater flows through the oil separation tank through the inlet and the outlet, when the water level of the canteen wastewater is higher than the lower opening of the oil separation tank 1, grease is blocked by the oil separation wall 1 because of floating on the surface of the wastewater, and when the water level of the canteen wastewater rises to the upper opening of the oil separation wall 2 along the vertical channel between the oil separation wall 1 and the oil separation tank 2 after passing through, the canteen wastewater can flow through, so that the canteen wastewater has longer sedimentation time.

However, this embodiment has the disadvantage that if the lower opening of the oil separation wall 1 is large, the excessive grease cannot be blocked with more flow through the lower opening when the water level of the canteen wastewater does not rise above the lower opening; and as the solid sediment deposited at the bottom of the oil separation tank is continuously increased, the lower opening of the oil separation wall 1 is gradually blocked and cannot flow smoothly, and the blockage forms a chain reaction, namely, once the blockage is partially performed, the complete blockage process is greatly accelerated.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the oil separation tank, which not only can greatly reduce the amount of oil which flows through when the water level of the waste water in the canteen is not raised above the lower opening, but also can greatly avoid the occurrence of blockage.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

an oil separation tank for treating canteen wastewater flowing along a predetermined path, comprising: the oil removal sedimentation chambers are sequentially adjacent along a preset path and are provided with a flow pipe, and the oil removal sedimentation chambers are communicated through the flow pipe, wherein the flow pipe is provided with an upper port, a lower port and a communication port which are communicated with each other, the upper port is higher than the lower port, the water level of the inflowing canteen wastewater is positioned between the upper port and the lower port, and a flow path of the canteen wastewater in the oil removal tank is formed between the lower port and the communication port.

Preferably, the flow tube is a three-port open "T".

Preferably, the lower ports of the plurality of flow pipes are lowered in sequence along the flow path of the canteen wastewater.

Preferably, the top of the oil separation sedimentation chamber is also provided with a manhole.

Compared with the prior art, the utility model has the beneficial effects that:

1. because the oil separation tank of the present utility model has: the oil separation sedimentation chambers are sequentially adjacent along a preset path and are provided with flow pipes, the oil separation sedimentation chambers are communicated through the flow pipes, the flow pipes are provided with upper ports, lower ports and communication ports which are communicated with each other, the upper ports are higher than the lower ports, the water level of inflowing canteen wastewater is positioned between the upper ports and the lower ports, a flow path of canteen wastewater in the oil separation tank is formed between the lower ports and the communication ports, on one hand, most of grease is blocked in the corresponding oil separation sedimentation chambers by the flow pipes due to floating on the liquid level of the canteen wastewater, and the lower ports are arranged to enable the overflow area to be smaller, so that the time for solid residue sedimentation is longer, on the other hand, the upper ports and the lower ports can be communicated to maintain air pressure balance, so that the phenomenon that the circulation is not smooth due to the blocking of the solid residue of the lower ports 111b is avoided.

2. Because the lower ports of the plurality of flow pipes are sequentially lowered along the flow path of the canteen wastewater, the higher the lower ports are, the larger the distance from the lower part of the oil separation sedimentation chamber is, namely the longer the sediment of solid residues in the oil separation sedimentation chamber is, the larger the space below the lower ports is for sedimentation, and the higher the lower ports are, the larger the overflow pressure is, so that the faster the overflow is caused, therefore, in the utility model, the gradient of the blocked solid residues in the oil separation sedimentation chamber along the preset path is reduced, and the comprehensive efficiency of oil separation sedimentation and overflow of the oil separation tank is obviously improved.

Drawings

FIG. 1 is a schematic diagram of a prior art oil separator tank;

fig. 2 is a schematic view of an oil separator according to an embodiment of the present utility model.

In the figure: 10. the oil separation tank D, a preset path, 11, an oil separation sedimentation chamber, 111, a manhole, 112, a runner pipe, 11a, an upper port, 11b, a lower port, 11c and a communication port.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement of the purposes and the effects of the present utility model easy to understand, the following examples specifically describe an oil separation tank of the present utility model with reference to the accompanying drawings, and it should be noted that the description of these embodiments is for helping understanding the present utility model, but not limiting the present utility model.

As shown in fig. 2, the oil separation tank 10 of the present embodiment is used for treating the canteen wastewater flowing along the predetermined path D, thereby separating grease and solid residues in the canteen wastewater.

The oil separation tank 10 has a plurality of oil separation sedimentation chambers 11 that are sequentially adjacent and communicate along a predetermined path D, and in this embodiment, the number of the oil separation sedimentation chambers 11 is three.

The oil separation settling chamber 11 has a manhole 111 and a flow pipe 112.

The manhole 111 is located at the top of the oil separation settling chamber 11, the plurality of oil separation settling chambers 11 are communicated through the communication pipe 112, the communication pipe 112 has an upper port 11a, a lower port 11b and a communication port 11c which are communicated with each other, and the upper port 11a and the lower port 11b located in the oil separation settling chamber 11 are both communicated with the adjacent oil separation settling chamber 11 or the outside of the oil separation tank 10 through the communication port 11c, the upper port 11a is higher than the lower port 11b, and the water level of the canteen wastewater flowing into the oil separation settling chamber 11 is located between the upper port 11a and the lower port 11b, and in addition, a flow path of the canteen wastewater in the oil separation tank 10 is formed between the lower port 11b and the communication port 11c, specifically, the upper and lower ports can be communicated with each other to maintain the air pressure balance, thereby avoiding that the lower port 11b is blocked by solid residues to cause the flow to be not smooth, the lower port 11b of the flow pipe 12 of the plurality of oil separation settling chambers 11 is lowered in sequence along a predetermined path D, the grease floating in the oil separation settling chamber 11 is pumped out of the oil separation tank 10 through the manhole 111.

Specifically, when the canteen wastewater flows into the oil separation sedimentation chamber 11, since grease in the canteen wastewater floats on the wastewater surface, most of the grease is blocked between the upper port 11a and the lower port 11b without flowing into the adjacent oil separation sedimentation chamber 11, and only a small part of the grease rises through the lower port 11b to flow into the adjacent oil separation sedimentation chamber 11; while the solid residues in the waste water of the canteen are precipitated in the flowing process, so that most of the solid residues are blocked below the lower port 11b and do not flow into the adjacent oil separation precipitation chamber 11, only a small part of the solid residues which are not precipitated in time flow into the adjacent oil separation precipitation chamber 11 through the lower port 11b, and the higher the lower port 11c is, the larger the distance from the bottom of the oil separation precipitation chamber 11 is, i.e. the longer the solid residues are precipitated in the oil separation precipitation chamber 11 and the larger the space available for sediment accumulation is below the lower port 11c is, i.e. the solid residues are accumulated more, while the lower port 11c is closer to the bottom of the oil separation precipitation chamber 11, the larger excessive flow pressure causes the excessive flow, so that the gradient of the blocked solid residues in the oil separation precipitation chamber 11 along the preset path is reduced, the comprehensive efficiency of the oil separation tank 10 is obviously improved, in this embodiment, the flow path of the waste water flowing down port 111b is sequentially reduced by 100mm, the flow path along the canteen is blocked by the canteen, and the ratio of the blocked solid residues is substantially blocked by 3%, the grease is substantially blocked by 3%, and the grease is substantially blocked by 30% of the grease is at the ratio of 5%.

The above embodiments are preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications or variations which may be made by those skilled in the art without the inventive effort within the scope of the appended claims remain within the scope of this patent.

Claims (4)

1. An oil separation tank for treating canteen wastewater flowing along a predetermined path, comprising:

a plurality of oil separation sedimentation chambers which are adjacent in sequence along the preset path and are provided with a flow pipe, the plurality of oil separation sedimentation chambers are communicated through the flow pipe,

wherein the flow pipe is provided with an upper port, a lower port and a communication port which are mutually communicated,

the upper port is higher than the lower port, the water level of the inflowing canteen wastewater is positioned between the upper port and the lower port, and a flow path of the canteen wastewater in the oil separation tank is formed between the lower port and the communication port.

2. The oil separator according to claim 1, wherein:

wherein, the flow tube is T-shaped with three openings.

3. The oil separator according to claim 1, wherein:

wherein, a plurality of lower ports of runner pipe follow the flow path of dining room waste water and descend in proper order.

4. The oil separator according to claim 1, wherein:

wherein, the top of oil removal sedimentation chamber still has the manhole.