JP3016450U - Siphon release such as grease interceptor and odor control device - Google Patents

Abstract

(57) [Summary] [Purpose] When a siphon action occurs in the discharge pipe of a grease interceptor, etc., the action is canceled and the odor is blocked. [Configuration] When a siphon action occurs in the water flow from the inflow port 12 to the outflow port 13 of the discharge pipe 11 equipped in the grease interceptor, air is introduced into the discharge pipe 11 to stop the action. For this purpose, the lower end 14 is connected to the upper part inside the discharge pipe, and the upper end 15 is equipped with an air introduction pipe 16 which is connected to the outside of the separation tank, and is substantially J-shaped or S-shaped to block the odor in the discharge pipe 11. Water sealing means 17 such as the above is provided in the air introduction pipe 16.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a grease interceptor or the like having a discharge pipe that introduces waste water into a separation tank to separate foreign matter from water, and takes only the water into the inlet and then discharges the water to the outlet. When it occurs, it relates to a device for releasing it and stopping the odor.

[0002]

[Prior art]

 For example, the equipment used for treating kitchen wastewater is called a grease trap or a grease interceptor. This is to collect miscellaneous waste from the wastewater with a filter, etc., to separate and collect the oil and fat by utilizing the difference in specific gravity, and to let only the water flow as sewage.

However, in the case of the conventional grease interceptor, when the amount of drainage increases and the residence time in the separation tank increases, the water level rises, and a siphon action is generated in the drain pipe and the discharge pipe that seals the inside of the tank. Therefore, there is a problem that the scum, sludge, etc. once collected are sucked and discharged.

[0004]

[Problems to be solved by the device]

 The present invention has been made by paying attention to the above points, and its problem is that when a siphon action occurs in the discharge pipe of the grease interceptor or the like, the action is canceled to discharge the scum and the like. In addition to preventing it, it is necessary to maintain a water seal to effectively block offensive odors and gas from sewers and discharge pipes.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention provides air inside the exhaust pipe 11 when a siphon action occurs in the water flow from the inflow port 12 to the outflow port 13 of the exhaust pipe 11 equipped in the grease blocker or the like. In order to introduce and stop the action, one end 14 is equipped with an air introduction pipe 16 leading to the upper part inside the discharge pipe, and the other end 15 is equipped with an air introduction pipe 16 communicating outside the separation tank, and for blocking off odor in the discharge pipe 11. A means for providing a water-sealing means 17 having a substantially J-shape or S-shape on the air introduction pipe 16 is provided.

[0006]

[Action]

 After the miscellaneous wastes and scum are separated from the wastewater and collected, if a siphon action occurs in the discharge pipe 11 that discharges only water, the void inside the pipe becomes a low pressure part, but one end of the air introduction pipe 16 is the upper part inside the discharge pipe. Since it is connected to, the air is sucked by the negative pressure, and the water flow is interrupted. As a result, the water seal in the discharge pipe is maintained. Further, since the air introduction pipe 16 is provided with the water sealing means 17, the odor in the discharge pipe 11 is not directly released to the outside.

[0007]

【Example】

 The figure shows an example in which the present invention is applied to a grease interceptor for treating kitchen wastewater, and the kitchen wastewater is introduced into the inside of the inlet chamber 19 from the inlet 18 provided on one side of the separation tank 10. The solid waste products are separated by the filter 20 installed there (FIGS. 1 and 2).

The separation chamber 21 and the inlet chamber 19 are partitioned by an upper partition plate 22, and the wastewater is introduced into the separation chamber 21 through the upward passage 24 while submersing in the lower passage 23. Reference numeral 25 denotes a separation plate for preventing the sedimentation of the scum, which is provided almost all over the separation chamber 21 and has an innumerable through hole 26 for inflow of water. The drain pipe 11 for draining only the water content of the waste water obtained by separating the waste and scum to the sewer pipe or the like is provided on the other side of the separation chamber 21 farthest from the inlet 18.

The discharge pipe 11 has a vertical inflow part 27 having an inflow port 12 opened at the lower end, a vertical outflow part 28 having an outflow port 13 to the outside of the tank at the lower end, and both of these parts 27. , 28 connected at the upper end, and has an inverted U-shaped or nearly gate-shaped front shape as a whole (FIG. 3). Since the illustrated inflow part 27 and outflow part 28 both have upper lids 27a, 28a that can be opened and closed, it is convenient to clean the inside of the pipe 11 by removing them.

Therefore, the water surface (standard water level) of the separation chamber 21 is kept at the height of the bottom surface of the connecting portion 29 of the discharge pipe 11, and when it exceeds this, water is discharged from the outlet 13 to the outside of the device. However, when the flowing water from the inflow part 27 to the outflow part 28 strengthens the flow force by the siphon action, it sucks the scum and the like, so that air is introduced into the upper void 30 in the discharge pipe and the siphon action is stopped. I will let you.

The air introducing pipe 16 for that purpose has one end 14 connected to the upper space 30 of the discharge pipe 11, and the other end 15 is provided on the inflow part 27 side so as to extend upward and communicate with the outside of the separation tank 10. ing. In the case of the example of FIG. 3, the air introduction pipe 16 made of a corrosion resistant pipe is attached to the upper lid 27a by using the adapter 31, and the position of the one end 14 thereof is determined. The one end 14 is arranged at a portion that causes a siphon action, and the outside air is sucked into the pipe by utilizing the pressure difference between the low pressure portion and the atmospheric pressure caused by the action.

According to the experiment, the position of the one end 14 is appropriately lower than the standard water level by a few cm, but the inner diameter of the air introduction pipe 16 in the test device is 8 mm, and the diameter of the outflow port 13 is This is the result obtained by gravity supplying 90 liters of waste water into the separation tank 10 of 3 inches per minute, so the above numerical values may change if the conditions change.

Further, the air introduction pipe 16 is provided with a water sealing means 17 for blocking odor. The water sealing means 17 illustrated in FIG. 3 is a so-called trap formed by bending the air introducing pipe 16 into a J-shape, and therefore the one end 14 faces upward. On the other hand, in the example of FIG. 4, the air introduction pipe 16 is arranged outside the discharge pipe 11 and is attached to the discharge pipe through the attachment auxiliary tool 34. The connecting portion 32 to the discharge pipe 11 is substantially horizontal, and its front side is bent and formed into a substantially U-shape to form the water sealing means 17.

Therefore, in the device of the present invention, even if the siphon action occurs in the flow in the discharge pipe at the early stage of the large inflow of waste water, the air introduced from the air introduction pipe 16 immediately releases the siphon action. Although the fat content is separated from the water passing through the discharge pipe 11, if one end of the air introduction pipe 16 is bent into a substantially U shape, there is also an effect of preventing the contamination of the portion. Note that reference numeral 33 indicates an opening / closing lid of the separation tank 10. The water sealing means 17 is usually J-shaped, U-shaped, or S-shaped, but it may be integral with the pipe 16 or may be a separate body.

[0015]

[Effect of device]

 Since the present invention is constructed and operates as described above, even if the siphon action temporarily occurs in the discharge pipe 11 such as the grease blocker, it can be immediately released, so that the water flow in the tank becomes gentle. It is possible to prevent the trapped scum and oils and fats from being discharged to the sewer pipe and the like, and the water sealing means 17 of the air introduction pipe 16 can completely block offensive odor and reverse flow of gas from the sewer pipe. It has the effect of being able to. Therefore, it is not necessary to seal the opening of the separation tank with a robust lid, cleaning and maintenance are easy, and the sewer pipe is not blocked.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view of a grease interceptor embodying a device according to the present invention.

FIG. 2 is a vertical sectional view of the same.

FIG. 3 is a partially cutaway front view of a siphon release and odor control device for a grease interceptor according to the present invention.

FIG. 4 is a partially cutaway front view of the same modified example.

Claims (2)

[Scope of utility model registration request] 1. A grease interceptor or the like having a discharge pipe (11) for introducing waste water into a separation tank to separate foreign matter from water and introducing only the water into an inlet and outflow to an outlet. When a siphon action occurs in the water flow from the inflow port 12 to the outflow port 13 of 11, the air is introduced into the discharge pipe 11 and the one end 14 communicates with the upper portion of the discharge pipe to stop the action. The other end 15 is equipped with an air introduction pipe 16 communicating with the outside of the separation tank, and a water sealing means 17 of substantially J-shape or S-shape is provided in the air introduction pipe 16 for blocking odor in the discharge pipe 11. A siphon release and odor control device such as a grease interceptor. 2. A grease interceptor or the like provided with a discharge pipe 11 for introducing wastewater into a separation tank to separate foreign matter from water, and introducing only the water into an inflow port and flowing out to an outflow port. Reference numeral 11 denotes a longitudinal inflow part 27 having an inflow port 12 opened at the lower end, an outflow part 28 in the same direction having an inflow port 13 to the outside of the tank at the lower end, and both parts 27, 28 at the upper end part. Discharge pipe 1 consisting of connecting part 29 connected
When the siphon action occurs in the water flow from the inflow port 12 to the outflow port 13 of No. 1, the one end 14 leads to the upper part in the exhaust pipe in order to introduce air into the exhaust pipe 11 and stop the action. The other end 15 is equipped with an air introduction pipe 16 communicating with the outside of the separation tank, and a water sealing means 17 of substantially J-shape or S-shape is provided in the air introduction pipe 16 for blocking odor in the discharge pipe 11. A siphon release and odor control device such as a grease interceptor.