Rain and sewage separation municipal pipeline

Abstract

This invention belongs to the field of municipal drainage technology, specifically a rainwater and sewage separation municipal pipeline, including an inlet pipe and a collection box. The upper end of the inlet pipe is the inlet, and the inner cavity of the inlet pipe is equipped with a guide plate with several filter holes for filtering rainwater. A sewage pipe connected to the inner cavity of the inlet pipe is fixedly installed on the side wall of the inlet pipe, located on one side of the guide plate. The lower end of the inlet pipe is fixedly connected to an outlet pipe, the other end of which is the outlet. This invention, by setting a guide plate with filter holes inside the inlet pipe, allows larger solid debris such as pebbles in the rainwater to be trapped above the guide plate. The top of the guide plate is inclined, and the inner cavity of the sewage pipe is also inclined accordingly. This combined structure facilitates the intercepted debris to slide into the sewage pipe and into the collection box under gravity, which helps reduce the long-term retention of debris inside the inlet pipe and reduces the frequency and difficulty of manual cleaning.

Description

Technical Field

[0001] This invention relates to the field of municipal drainage technology, specifically to a municipal pipeline for separating rainwater and sewage. Background Technology

[0002] In urban drainage systems, rainwater and domestic sewage or industrial wastewater typically need to be collected and transported separately to reduce the load on sewage treatment plants and minimize the risk of pollution to natural water bodies. Most existing rainwater and sewage separation pipes have simple grilles or filter plates installed at the inlet to intercept larger solid debris.

[0003] However, in actual use, such filter structures are easily clogged by larger impurities such as stones, which prevents rainwater from draining smoothly. Although some pipes are equipped with bypasses for sewage discharge, small particles of mud or pollutants may still enter the outlet pipe with the rainwater, affecting the diversion effect. Therefore, it is necessary to develop a municipal pipe for separating rainwater and sewage. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of the embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] To address the aforementioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: A municipal pipeline for separating rainwater and sewage includes an inlet pipe and a collection box. The upper end of the inlet pipe is the inlet, and the inner cavity of the inlet pipe is provided with a guide plate with several filter holes for filtering rainwater. A sewage pipe connected to the inner cavity of the inlet pipe is fixedly installed on the side wall of the inlet pipe, and the sewage pipe is located on one side of the guide plate. The lower end of the inlet pipe is fixedly connected to an outlet pipe, and the other end of the outlet pipe is the outlet. The end of the drain pipe away from the inlet pipe is connected to the inner cavity of the collection box. The inner cavity of the collection box is fixedly equipped with a filter screen for further filtering of rainwater, and the filter screen is located below the drain pipe. The bottom of the collection box is fixedly equipped with a connecting pipe that communicates with its own inner cavity, and the end of the connecting pipe away from the collection box is connected to the inner cavity of the outlet pipe.

[0006] As a preferred embodiment of the rainwater and sewage separation municipal pipeline of the present invention, the top of the guide plate is inclined and the inner cavity of the sewage pipe is inclined.

[0007] As a preferred embodiment of the municipal pipeline for separating rainwater and sewage according to the present invention, the higher end of the sewage pipe cavity is flush with the lower side of the guide plate, and the lower end of the sewage pipe cavity is connected to the cavity of the collection box.

[0008] As a preferred embodiment of the rainwater and sewage separation municipal pipeline of the present invention, the guide plate and the inlet pipe are detachably assembled, and the filter screen and the collection box are detachably assembled; the guide plate and the inlet pipe are assembled by bolts, and the filter screen and the collection box are assembled by bolts.

[0009] As a preferred embodiment of the municipal pipeline for separating rainwater and sewage according to the present invention, the top of the collection box is provided with an opening, and a sealing cover plate for sealing the opening is hinged to the top of the collection box, and a handle is fixedly provided on the top of the sealing cover plate.

[0010] As a preferred embodiment of the municipal pipeline for separating rainwater and sewage according to the present invention, a one-way valve is provided on the connecting pipe, which allows the water inside the collection tank to flow into the outlet pipe in only one direction.

[0011] The beneficial effects of this invention are: 1. By installing a guide plate with filter holes inside the inlet pipe, larger solid debris such as pebbles in the rainwater can be trapped above the guide plate, which helps prevent such debris from directly entering the outlet pipe, thereby reducing the possibility of blockage in downstream pipes or pumping stations to a certain extent.

[0012] 2. The top of the guide plate is designed with an incline, and the inner cavity of the drain pipe is also set with a corresponding incline. The higher end of the drain pipe is flush with the lower side of the guide plate. This combination structure allows the intercepted debris to slide into the drain pipe and into the collection box under the action of gravity, which helps to reduce the long-term retention of debris inside the water inlet pipe and reduce the frequency and difficulty of manual cleaning.

[0013] 3. The filter screen inside the collection box is located below the drain pipe outlet, enabling secondary filtration of rainwater entering the collection box. This structure helps remove fine particles such as silt and debris that were not intercepted during the first filtration, improving the cleanliness of the final discharged rainwater. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1This is a schematic diagram of the structure of the present invention; Figure 2 This is a structural schematic diagram of the cross-section of the sewage pipe, water outlet pipe, water inlet pipe, connecting pipe, and collection box of the present invention; Figure 3 For the present invention Figure 3 A schematic diagram of the structure from a side view; Figure 4 For the present invention Figure 2 A schematic diagram of the structure of region A in the middle.

[0015] In the diagram: Inlet pipe - 100; Guide plate - 101; Filter hole - 102; Drain pipe - 103; Outlet pipe - 104; Collection box - 200; Filter screen - 201; Connecting pipe - 202; Sealing cover plate - 203; Check valve - 204. Detailed Implementation

[0016] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0018] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0019] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0020] Please see Figures 1-4 The diagram shown is a structural schematic of an embodiment of a municipal pipeline for separating rainwater and sewage according to the present invention. Please refer to [link / reference]. Figures 1-4 This paper provides a detailed introduction to a type of municipal pipeline that separates rainwater and sewage.

[0021] A municipal pipeline for separating rainwater and sewage includes an inlet pipe 100 and a collection box 200. The inlet pipe 100 is installed vertically or nearly vertically, with its upper end serving as an inlet for receiving rainwater from the ground and any debris such as mud, sand, and pebbles that may be mixed in. A guide plate 101 is installed inside the inlet pipe 100, spanning the interior of the pipe. The guide plate 101 has several filter holes 102 on its surface. Rainwater flows downward through the filter holes 102. The guide plate 101 can initially separate rainwater from relatively large debris, such as pebbles mixed in with mud, to prevent impurities from falling directly into the outlet pipe 104 and causing downstream blockage. A drain pipe 103 is fixedly connected to the side wall of the inlet pipe 100, and the inner cavity of the drain pipe 103 communicates with the inner cavity of the inlet pipe 100. The drain pipe 103 is installed on one side of the upper edge of the guide plate 101, that is, the inlet end of the drain pipe 103 is close to the higher or lower position of the guide plate 101, depending on the inclination direction of the guide plate 101. In this design, the top of the guide plate 101 is designed as an inclined surface, and the inner cavity of the drain pipe 103 is also... Designed with an incline, the lower side of the guide plate 101 is roughly flush with the higher end of the drain pipe 103. In this way, the debris intercepted by the guide plate 101 will slide down the incline under the action of gravity, enter the inlet of the drain pipe 103, and then slide down the incline of the drain pipe 103 into the collection box 200. The incline structure helps the debris to move on its own, reducing the possibility of accumulation inside the inlet pipe 100, thereby reducing the frequency of manual cleaning. The end of the drain pipe 103 furthest from the inlet pipe 100 is connected to the inner cavity of the collection box 200. The collection box 200 is a relatively closed container, inside which a filter screen 201 is fixedly installed. The filter screen 201 is located below the outlet of the drain pipe 103. That is to say, the mixture of rainwater and debris entering the collection box 200 from the drain pipe 103 will first fall onto the filter screen 201. The rainwater passes through the filter screen 201 and continues downward, while smaller debris is intercepted by the filter screen 201. The filter screen 201 can further treat the rainwater after the first filtration, further removing fine particles such as mud, sand, and debris, thereby improving the cleanliness of the discharged rainwater. The filter screen 201 and the collection box 200 are connected in a detachable manner, specifically by bolts; similarly, the guide plate 101 and the inlet pipe 100 are also detachably assembled by bolts; after long-term use, the filter holes 102 on the guide plate 101 may be partially blocked, or too much debris may accumulate on the filter screen 201. Operators can remove the bolts and take out the guide plate 101 and the filter screen 201 for cleaning or replacement; the detachable structure provides convenience for daily maintenance and extends the service life of the entire pipeline; A connecting pipe 202 is provided at the bottom of the collection box 200. One end of the connecting pipe 202 is connected to the bottom of the inner cavity of the collection box 200, and the other end is connected to the inner cavity of the outlet pipe 104. The upper end of the outlet pipe 104 is fixedly connected to the lower end of the inlet pipe 100, and the other end of the outlet pipe 104 is a water outlet that leads to the next-level pipe or natural water body. After secondary filtration by the filter screen 201, the rainwater accumulates at the bottom of the collection box 200 and flows into the outlet pipe 104 through the connecting pipe 202. It then merges with the rainwater flowing directly down from the inlet pipe 100 and is discharged together. This part of the filtered rainwater is recycled, reducing water loss and preventing excessive water accumulation and overflow inside the collection box 200. A one-way valve 204 is installed on the connecting pipe 202. The one-way valve 204 allows water to flow from the collection tank 200 to the outlet pipe 104, but the flow cannot be reversed. The one-way valve can prevent water from flowing back into the collection tank 200 when the water level or pressure inside the outlet pipe 104 is high, thereby maintaining a relatively stable filtration environment inside the collection tank 200 and preventing settled debris from being flushed up again. In addition, to facilitate cleaning and inspection of the inside of the collection box 200, an opening is provided on the top of the collection box 200, and a sealing cover 203 is hinged to the opening; the sealing cover 203 can be flipped up, and a handle is fixed on its top, which the operator can grasp to open the cover; under normal use, the sealing cover 203 relies on its own weight or cooperates with the sealing ring to close the opening, preventing rainwater from splashing out or debris from falling in; when it is necessary to clean the accumulated residue on the filter screen 201, the sealing cover 203 can be opened directly for operation.

[0022] The entire process of the device is as follows: Rainwater carrying mud, sand, stones and other debris enters from the inlet at the top of the inlet pipe 100 and falls onto the guide plate 101; it falls through the filter hole 102 and enters the outlet pipe 104 through the lower part of the inlet pipe 100; relatively large stones are blocked by the guide plate 101, and under the impact of rainwater, larger impurities and rainwater slide along the inclined surface into the drain pipe 103, and then into the collection box 200; in the collection box 200, the debris falls onto the filter screen 201, and the remaining rainwater sinks to the bottom of the box through the filter screen 201, and flows into the outlet pipe 104 through the connecting pipe 202 and the one-way valve 204, reducing the water content inside the collection box 200 and increasing its capacity to store impurities.

[0023] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, as long as there is no structural conflict, the features in the disclosed embodiments can be combined with each other in any manner. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A municipal pipeline for separating rainwater and sewage, comprising an inlet pipe (100) and a collection box (200), characterized in that: The upper end of the inlet pipe (100) is the inlet, and the inner cavity of the inlet pipe (100) is provided with a guide plate (101). The guide plate (101) has a plurality of filter holes (102) for filtering rainwater. The side wall of the inlet pipe (100) is fixedly provided with a drain pipe (103) that communicates with its own inner cavity. The drain pipe (103) is located on one side of the upper edge of the guide plate (101). The lower end of the inlet pipe (100) is fixedly connected to an outlet pipe (104), and the other end of the outlet pipe (104) is the outlet. The end of the drain pipe (103) away from the inlet pipe (100) is connected to the inner cavity of the collection box (200). The inner cavity of the collection box (200) is fixedly provided with a filter screen (201) for further filtering of rainwater. The filter screen (201) is located below the drain pipe (103). The bottom of the collection box (200) is fixedly provided with a connecting pipe (202) that communicates with its own inner cavity. The end of the connecting pipe (202) away from the collection box (200) is connected to the inner cavity of the outlet pipe (104).

2. A municipal pipeline for separating rainwater and sewage according to claim 1, characterized in that: The top of the guide plate (101) is inclined, and the inner cavity of the drain pipe (103) is inclined.

3. A municipal pipeline for separating rainwater and sewage according to claim 2, characterized in that: The higher end of the drain pipe (103) is flush with the lower side of the guide plate (101), and the lower end of the drain pipe (103) is connected to the inner cavity of the collection box (200).

4. A municipal pipeline for separating rainwater and sewage according to claim 1, characterized in that: The guide plate (101) and the water inlet pipe (100) are detachably assembled, and the filter screen (201) and the collection box (200) are detachably assembled; the guide plate (101) and the water inlet pipe (100) are assembled by bolts, and the filter screen (201) and the collection box (200) are assembled by bolts.

5. A municipal pipeline for separating rainwater and sewage according to claim 1, characterized in that: The top of the collection box (200) is provided with an opening, and a sealing cover plate (203) for sealing the opening is hinged to the top of the collection box (200). A handle is fixedly provided on the top of the sealing cover plate (203).

6. A municipal pipeline for separating rainwater and sewage according to claim 1, characterized in that: A one-way valve (204) is provided on the connecting pipe (202), which allows the water inside the collection tank (200) to flow into the outlet pipe (104) in only one direction.

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