Confluence channel tank sewage interception structure

Abstract

The invention discloses a sewage interception structure of a confluence channel box, which relates to the technical field of rain and sewage separation and comprises a confluence channel box body, a gate is mounted at one end, close to a river, of the confluence channel box body, a sewage interception wall is arranged in the confluence channel box body, the tail end of the sewage interception wall is not connected with the gate, and the top end of the sewage interception wall is not connected with the inner side wall of the top of the confluence channel box body. According to the sewage intercepting structure of the confluence channel box, when the upstream of the confluence channel box body cannot be subjected to source rainwater and sewage diversion transformation, the confluence channel box body is divided into the sewage channel and the rainwater channel by arranging the sewage intercepting wall, the tail end of the sewage channel is connected into a municipal sewage pipe through a sewage discharging pipe, and the rainwater channel is connected with a river branch; the sewage channel is communicated with the top space of the rainwater channel, sewage and rainwater are discharged through the sewage channel and the rainwater channel in the dry season, rainwater is discharged through the rainwater channel and the sewage channel in the rainy season, the flood discharge capacity of the confluence canal box body is reserved, and rainwater and sewage diversion can be achieved in the dry season.

Description

Technical Field

[0001] The invention relates to the technical field of rainwater and sewage separation, and in particular to a combined channel box sewage interception structure. Background Art

[0002] Combined sewer boxes are a product of the urbanization process. They are usually natural rivers and flood drainage ditches covered by humans. Residents’ domestic sewage is directly discharged into the box. A sewage interception gate is installed at the end of the combined sewer box. It is connected to the sewage system as a sewage transfer channel in the dry season and discharged into the river as a rainwater channel in the rainy season. However, there is a huge contradiction between the sewage accumulated in the sewer box and flood discharge during rainy days, which leads to urban waterlogging due to untimely drainage of the sewer box during the rainy season. At the same time, the sewage accumulated in the sewer box is directly discharged into the river, causing overflow pollution and deteriorating the water quality of the river.

[0003] In recent years, the country has attached great importance to river management and the improvement of the quality and efficiency of sewage treatment plants, and is gradually carrying out the work of sewage diversion in combined channel boxes, aiming to remove the sewage accumulated in the channel boxes on a daily basis, so that rainwater and sewage can flow separately, and prevent sewage and pollutants from entering the channel boxes. The traditional way to carry out sewage diversion transformation for combined channel boxes is to start the rainwater and sewage diversion transformation from the source drainage unit, connect the source sewage to the sewage pipe, and restore the rainwater channel function of the channel box. However, with the development of urbanization, a considerable part of the existing combined channel boxes are difficult to trace back and transform because they are located in urban villages, are subject to the pressure of houses, or have a complex pipe network system within the basin. It is difficult to carry out source rainwater and sewage diversion transformation.

[0004] How to develop a combined channel box sewage interception structure that can reduce the impact of mixed rainwater and sewage flow on river water quality by modifying the channel box itself when it is impossible to divert rainwater and sewage at the source has become a technical problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0005] The object of the present invention is to provide a combined channel box sewage interception structure to solve the problems listed in the background technology.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The present invention discloses a sewage interception structure for a combined channel box, comprising a combined channel box body, a gate being installed at one end of the combined channel box body close to a river, a sewage interception wall being arranged inside the combined channel box body, the end of the sewage interception wall being not connected to the gate, and the top of the sewage interception wall being not connected to the top inner wall of the combined channel box body.

[0008] Preferably, the sewage interception wall is provided with a sewage channel between one side wall of the sewage interception wall and the opposite surface of the inner wall of the combined channel box body, and a rainwater channel between the other side wall of the sewage interception wall and the opposite surface of the other inner wall of the combined channel box body.

[0009] Preferably, two sewage interception walls are provided, and the side surface of the sewage interception wall and the opposite surface of the inner wall of the combined channel box body form a sewage channel, and the opposite surfaces of the two sewage interception walls form a rainwater channel.

[0010] Preferably, a guide groove is provided at the bottom of the sewage channel.

[0011] Preferably, a retaining wall is built at one end of the sewage interception wall close to the gate, one end of the retaining wall is connected to the sewage interception wall, and the other end of the retaining wall is connected to the inner wall of the combined channel box body.

[0012] Preferably, a sewage pipe is buried at one end of the combined channel box body close to the gate, one end of the sewage pipe is connected to the sewage channel, and the other end of the sewage pipe is connected to the sewage treatment plant.

[0013] Compared with the prior art, the beneficial technical effects of the present invention are:

[0014] A combined channel box sewage interception structure can, when it is impossible to carry out source rainwater and sewage diversion transformation upstream of a combined channel box body, separate the combined channel box body into a sewage channel and a rainwater channel by arranging one or two sewage interception walls inside the combined channel box body, the end of the sewage channel is connected to a municipal sewage pipe through a sewage pipe, the rainwater channel is connected to a river, and the upper end of the sewage interception wall is not connected to the top inner wall of the combined channel box body, so that the sewage channel and the top space of the rainwater channel are connected, the sewage in the combined channel box body can enter the municipal sewage treatment system through the sewage channel in the dry season, and when the surface runoff is large in the rainy season, the rainwater is discharged through the rainwater channel and the sewage channel, which not only retains the flood discharge capacity of the combined channel box body, but also can achieve rainwater and sewage diversion when the rainfall is small in the dry season. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a front view schematic diagram of a combined channel box sewage interception structure of the present invention;

[0017] Figure 2 A schematic top view of a combined channel box sewage interception structure of the present invention (close to the river end);

[0018] Figure 3 It is a schematic diagram of the construction nodes of the sewage interception wall of the present invention.

[0019] Description of the drawings: 1. Merging box body; 2. Sewage interception wall; 3. Diversion trough; 4. Retaining wall; 5. Gate; 6. Sewage pipe. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] like Figure 1-3 As shown, a sewage interception structure of a combined channel box includes a combined channel box body 1, a gate 5 is installed at one end of the combined channel box body 1 close to the river, a sewage interception wall 2 is arranged inside the combined channel box body 1, the end of the sewage interception wall 2 is not connected to the gate 5, and the top of the sewage interception wall 2 is not connected to the top inner wall of the combined channel box body 1.

[0022] Specifically, the sewage interception wall 2 is provided with a sewage channel between one side wall of the sewage interception wall 2 and the opposite surface of the inner wall of the combined channel box body 1, and a rainwater channel between the other side wall of the sewage interception wall 2 and the opposite surface of the other inner wall of the combined channel box body 1.

[0023] Specifically, two sewage interception walls 2 are provided, and the side surface of the sewage interception wall 2 and the opposite surface of the inner wall of the combined channel box body 1 are sewage channels, and the opposite surfaces of the two sewage interception walls 2 are rainwater channels.

[0024] Specifically, a guide groove 3 is provided at the bottom of the sewage channel.

[0025] Specifically, a retaining wall 4 is built at one end of the sewage interception wall 2 close to the gate 5 , one end of the retaining wall 4 is connected to the sewage interception wall 2 , and the other end of the retaining wall 4 is connected to the inner wall of the combined channel box body 1 .

[0026] Specifically, a sewage pipe 6 is buried at one end of the combined channel box body 1 close to the gate 5, one end of the sewage pipe 6 is connected to the sewage channel, and the other end of the sewage pipe 6 is connected to the sewage treatment plant.

[0027] By setting a sewage interception wall 2 on the side of the combined channel box body 1 close to the sewage outlet, and building a retaining wall 4 at the end of the sewage interception wall 2, the combined channel box body is divided into a sewage channel and a rainwater channel. The sewage interception wall 2 is set according to the position of the sewage outlet along the combined channel box body, and one or two sewage interception walls are set inside the combined channel box body. The end of the sewage channel is connected to the municipal sewage pipe through a sewage pipe 6, and the upper end of the sewage interception wall is not connected to the top inner wall of the combined channel box body, so that the sewage channel is connected to the top space of the rainwater channel. When the rainfall is small in the dry season, the sewage in the combined channel box body can enter the municipal sewage treatment system through the sewage channel, and the surface runoff is discharged into the river through the rainwater channel; when the rainfall is heavy in the rainy season, rainwater is discharged through the sewage channel and the rainwater channel to prevent urban waterlogging, which not only retains the flood discharge capacity of the combined channel box body, but also can achieve rainwater and sewage diversion when the rainfall is small in the dry season.

[0028] In addition, in the specific implementation of the transformation, a basket-type grille can be added to the inspection well along the combined channel box body. Combined with the diversion trough 3 set in the sewage channel, it can not only prevent larger solid waste along the line from entering the combined channel box body, but also facilitate the dredging of the combined channel box body, and avoid siltation of the sewage channel and occupation of the flood discharge section of the channel box.

[0029] according to Figure 3 As shown, in order to ensure that the sewage interception wall 2 has sufficient pressure bearing capacity, the construction method of the sewage interception wall 2 can be C30, P6 concrete, and double-row anchoring can be used to fix it on the bottom plate of the existing combined channel box body; the anchoring uses 8mm diameter grade 3 steel, the anchoring hole diameter is 10mm, the hole depth is 200mm, and the anchoring interval is 120mm. Before anchoring, the water is first drained by local cofferdam to expose the bottom plate of the combined channel box body, and then the bottom plate of the combined channel box body at the proposed sewage interception wall is roughened, cleaned after roughening, and anchored, and then the concrete interface agent is applied, and finally the formwork is supported and concrete is poured. After the concrete reaches the design strength, the formwork can be removed and restored to its original state.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or seal including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or seal.

[0031] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A sewage interception structure for a combined channel box, comprising a combined channel box body (1), wherein a gate (5) is installed at one end of the combined channel box body (1) close to a river, and characterized in that: A sewage interception wall (2) is arranged inside the combined channel box body (1), the end of the sewage interception wall (2) is not connected to the gate (5), and the top of the sewage interception wall (2) is not connected to the top inner wall of the combined channel box body (1).

2. A combined channel box sewage interception structure according to claim 1, characterized in that: The sewage interception wall (2) is provided with a sewage channel between one side wall of the sewage interception wall (2) and the opposite surface of the inner wall of the combined channel box body (1), and a rainwater channel between the other side wall of the sewage interception wall (2) and the opposite surface of the other inner wall of the combined channel box body (1).

3. A combined channel box sewage interception structure according to claim 1, characterized in that: Two sewage interception walls (2) are provided, and the side surface of the sewage interception wall (2) and the opposite surface of the inner wall of the combined channel box body (1) form a sewage channel, and the opposite surfaces of the two sewage interception walls (2) form a rainwater channel.

4. A combined channel box sewage interception structure according to claim 2 or 3, characterized in that: A guide groove (3) is provided at the bottom of the sewage channel.

5. The sewage interception structure of a combined channel box according to claim 1, characterized in that: A retaining wall (4) is built at one end of the sewage interception wall (2) close to the gate (5); one end of the retaining wall (4) is connected to the sewage interception wall (2), and the other end of the retaining wall (4) is connected to the inner wall of the combined channel box body (1).

6. A combined channel box sewage interception structure according to claim 2 or 3, characterized in that: A sewage pipe (6) is buried at one end of the combined channel box body (1) close to the gate (5); one end of the sewage pipe (6) is connected to the sewage channel, and the other end of the sewage pipe (6) is connected to the sewage treatment plant.

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