KR20000064153A - Meshed type manhole system by using hydro cyclone - Google Patents

Abstract

PURPOSE: A solid waste collecting manhole using a hydro-cyclone is provided to prevent an inflow of suspended solid, earthy material and solid waste that are contained in the drain pipe, and then removes in the manhole with a solid waste collecting net using hydro-cyclone. CONSTITUTION: A solid waste collecting manhole using a hydro-cyclone comprises a connection part of flow pipe line(1); a manhole body(3) that generates speed difference of storm sewage, solid waste and suspended solid; a solid waste collecting net(4) that is installed in the manhole; a lower structure(5) of solid waste collecting net; a cable that pulls out the deposited solid waste; an open and shut device(6) that drains the solid waste to the lower part; a partition that divides the influent and the effluent; a supporting member that supports the solid waste collecting net.

Description

Meshed type manhole system by using hydro cyclone}

The present invention relates to a sewage collection manhole using the principle of hydrocyclone, and more particularly, to prevent suspended matter, earth and sand and other dirt contained in the discharge pipe of rainwater and sewage from being deposited in the sewage pipe or entering the treatment plant. The present invention relates to a device for removing from a manhole with a sewage collection net using an efficient hydrocyclone.

Generally, manholes of rainwater and sewage are installed in the manner of sedimentation of suspended solids and removal by manpower by installing them by pipe length and section, so that the efficiency of removing suspended solids and other dirt is insignificant and not easy to collect. Inflow causes flood damage in the surrounding area, but the method for improving it is not improved.

In order to compensate for this, there is a proposal for a sewage collection manhole. However, a simple sewage collection network is installed in the manhole, but if the regular collection and management are not performed in parallel, there is a danger of causing damage to the jurisdiction area.

Therefore, it is urgent to introduce a new concept of waste collection manhole that can effectively collect waste and maintain the flow in the conduit.

Therefore, the present invention was created in view of the above-described problems, and an object thereof is to provide a sewage collection manhole which can not only prevent sediments in rainwater and sewage pipes, but also efficiently remove them.

1 is a view showing a waste collection manhole using a hydrocyclone that is the main part of the present invention

2 is a flow rate and separation diagram illustrating the principles of the present invention.

3 is a view showing the structure of the waste collection network, which is a main part of the present invention;

Figure 4 is a view showing a cross section of the waste collection manhole which is the main part of the present invention;

<Description of the symbols for the main parts of the drawings>

1: inlet line 2: manhole cover

3: manhole body 4: upper part of the waste collection network

5: bottom of the waste collection network 6: bottom opening and closing device

7: outflow pipe 10: diaphragm for separation of flow

11: manhole inlet 21: sewage collection net support

22: cable for collecting waste net 23: support for reinforcing the waste net and settling in the manhole

In order to achieve the object of the present invention as described above, the sewage collection manhole using cyclone is connected to the inlet pipe; A body of the manhole for generating a flow rate difference of the influent; A net for separating suspended solids and dirt; A support for increasing the efficiency of the mesh and allowing stable settlement; It consists of a diaphragm that separates the flow of influent and effluent.

With reference to the accompanying drawings, the waste collection manhole using the hydrocyclone of the present invention thus constructed will be described in detail as follows.

1 is a schematic view of a waste collection manhole using a hydrocyclone according to the present invention, Figure 2 is a view showing the flow rate of the manhole and the role of the diaphragm and sewage netting, Figure 3 is a main portion of the present invention 4 is a cross-sectional view of the manhole.

Rainwater and sewage flow into the sewage collection manhole through the inlet pipe (1) in order to separate and collect the inflow water and the sewage and other dirt contained in the sewage during rainfall. Rainwater and sewage introduced into the pipeline is introduced into the manhole into the body (3), and then into the sewage collection net (4). In the network, separation proceeds due to the speed difference between the influent, the suspended matter and the dirt, and the water is filtered out of the net 4 and discharged, and the suspended matter and the dirt are deposited in the lower part of the net. The lower part 5 of the mesh has a structure in which the intervals of the scales are denser than the upper part, so that it is easy to deposit and remove smaller floats and dirt. In order to separate the flow of influent and effluent, a diaphragm 10 is installed as in FIG. 2 to separate the flow. The diaphragm has a streamlined structure that minimizes head loss due to flow. In FIG. 2, the junction 11 of the influent water and the sewage net has a structure in which the sewage net is removed and connected to the inlet pipe so that the suspended matter and the dirt of the inlet pipe can be introduced into the sewage net without roughness. The water in the dirt net is removed from the float and dirt and is discharged to the outlet pipe 7 through the flow guide portion of the manhole body (3). As shown in Figure 4, the outlet pipe 7 is located above the inlet pipe (1). After removing the lid 2 after a certain period of time, the dirt removal network 22, the collecting cable 22 is lifted to the upper part by a crane or the like, moved to the discharge position, and then discharged to the lower discharge device 6 which can be opened and closed. . The collection cable 22 and the waste collection net 4 are reinforced with the upper plate support 21 in order to reinforce the waste collection net when the upper drawing is made to have a rigid structure. The waste collection net is reinforced with a support 23 for strengthening the waste collection net and for seating in the manhole. The support 23 maintains the support of the dirt net and the seating in the manhole in a structure having a 'b' groove. The manhole has an equal number of 'a' protrusions for seating the support.

The inner diameter of the waste collection manhole using Hardo cyclone can be manufactured from 900mm to 6,000mm and the length from 900mm to 5,000mm in the shape suitable for the site condition. These manholes can be designed in various sizes according to the diameter of the inlet pipe and the amount of inlet pipe and the total amount of suspended solids. The head difference between the inlet pipe and the outflow pipe should be less than 600mm.

<Design example>

Treatment flow rate 120 m ³ / day

Diameter of upper collecting net: 900mm Depth of upper collecting net: 900mm

Diameter of lower catchment net: 800mm Depth of lower catch net: 800mm

Water head difference between inlet and outlet: 150mm

For flow rate 10,000m ³ / day

Upper collection net diameter: 6,000mm Upper dirt collection net depth: 5,000mm

Diameter of the lower catchment net: 3600mm Depth of the lower catchment net: 2,40 mm

Water head difference between inlet and outlet: 600mm

As described above, the sewage collection manhole using hydrocyclone removes suspended matter and dirt flowing into the storm drainage pipe through the speed difference and the sewage collection network in the manhole during rainfall, thereby maximizing the amount of material deposited in the outflow pipe. It can reduce, reduce the amount of suspended solids flowing into the sewage treatment plant to improve the operating efficiency of the treatment plant, can remove the floating substances entering the lake or river. In addition, it is possible to remove the sediment by simply drawing the sewage collecting net with equipment such as a crane, so that the manhole can be cleaned more easily than the existing manpower removal method, and the maintenance is easy. In addition, it ensures the flow in the conduit and keeps the head loss to a minimum, so that the manhole can perform its function even during rainfall.

Claims (9)

Inlet duct annual part (1); A manhole body (3) for generating a speed difference between the introduced rainwater and the sewage and the suspended matter; A sewage collection net 4 settled therein; A substructure 5 of the waste collection network; A cable 22 capable of drawing the deposited dirt; An opening and closing device 6 capable of discharging dirt to the bottom; A sewage collection manhole using a hydrocyclone composed of a diaphragm 10 capable of separating the inflow and outflow flows and a support 23 capable of supporting the waste collection network. According to claim 1, the flow rate generating portion 3 of the manhole is cylindrical and has a structure incorporating a sewage collection network therein, the support 23 and the groove in the manhole of the sewage collection net is formed in the inlet portion (11) A sewage manhole with a structure that can be seated on the manhole body. The waste collection network of claim 1 is composed of an upper structure (4) having a scale of 5mm to 30mm and a lower structure (5) of 0.5mm to 5mm. The sewage collection manhole has a structure that allows the influent and the dirt to enter the sewage collection net because the collection net is removed. The sewage collection net according to claim 1, wherein the sewage collection net is attached to an a-shaped support to improve the robustness of the waste collection net and maintain its shape, and is configured to be seated with the manhole body (3). The waste collection net according to claim 1 has a structure in which a collecting cable 22 and a lower opening and closing device 6 capable of discharging dirt deposited on the lower part after drawing are attached to remove the manhole cover. Sewage manhole. The manhole body (3) of claim 1, wherein the body (3) of the manhole is a streamlined diaphragm (10) having a streamlined diaphragm (10) capable of smoothing the flow of inflow and outflow and separating the two flows. According to claim 1, the inner diameter of the sewage collection net 4 can be 900mm to 6,000mm, and the length can be designed and manufactured in a suitable shape according to the site conditions and inflow characteristics from 900mm to 5,000mm. The difference in head height is less than 600mm. According to claim 1, the inner diameter of the manhole body (3) for generating a flow rate is a manhole having a variety of specifications of 1,200mm to 7,000mm. The inflow pipe 1 and the outflow pipe 7 introduced into the manhole body 3 have a height difference, and the outflow pipe 7 is located above the inflow pipe 1 so as to separate floating materials. Manhole with structure that enables efficient