CN219973440U

CN219973440U - Drainage system with rain and sewage hybrid current limiting structure

Info

Publication number: CN219973440U
Application number: CN202321156161.0U
Authority: CN
Inventors: 刘明明; 张嘉一; 苏润博
Original assignee: Tai'an Lechuan Environmental Protection Technology Co ltd
Current assignee: Tai'an Lechuan Environmental Protection Technology Co ltd
Priority date: 2023-05-11
Filing date: 2023-05-11
Publication date: 2023-11-07
Anticipated expiration: 2033-05-11

Abstract

The utility model discloses a drainage system with a rain and sewage mixed connection flow limiting structure, which comprises a buffer well, an overflow pipe and a flow limiting valve, wherein the overflow well, the overflow pipe and the flow limiting valve are arranged in the buffer well; the overflow well is respectively communicated with the rainwater-sewage mixing pipe, the overflow pipe and the sewage pipe, the flow limiting valve is arranged on the sewage pipe, and the outlet of the overflow pipe is positioned right above the flow limiting valve; and the flowing water at the outlet of the overflow pipe drives the flow limiting valve to close the sewage pipe. The overflow well provided by the utility model has the conventional overflow and newly designed current limiting effects, can realize the automatic drainage current limiting effect without preparing an electrical device, and realizes the automatic switching of municipal sewage treatment channels and river channels. Not only saves energy consumption, but also has simple and reliable result and greatly reduces operation cost.

Description

Drainage system with rain and sewage hybrid current limiting structure

Technical Field

The utility model relates to the technical field of water discharge, in particular to a drainage system with a rain and sewage mixed connection flow limiting structure.

Background

In most town drainage systems, due to the fact that existing pipelines are not clear in trend, transformation is difficult, thorough rain and sewage diversion cannot be achieved, under the condition of sudden drop and heavy rain, rainwater enters municipal sewage pipes to enable water flow in the municipal sewage pipes to rise suddenly in a short time, and great impulsive force pressure is caused to sewage treatment plants.

When the rainfall is large, due to the continuous flushing of the rainwater, besides a certain amount of pollutants contained in the initial rainwater runoff, the later rainwater pollutants are less, and the rainwater falling into the sewage pool can be discharged into the river. For this reason, if the rainwater and sewage mixed water is reasonably limited, the rainwater can be allowed to flow into municipal sewage pipelines at the initial stage, and the rainwater can flow into river channels at the later stage, so that the problem can be solved.

In the prior art, a method for controlling the drainage amount by adopting a current limiting well is proposed, for example, a current limiting well for a drainage system (publication number: CN 206722042U) and a rain and sewage mixed drainage system (publication number: CN 206987012U) are disclosed, a liquid level meter detection water level signal is arranged, a control device controls an electric control valve according to the water level signal sent by the liquid level meter, and the scheme that when no rainfall or rainfall is small, sewage flows into an overflow well from a rain and sewage mixed pipe and finally flows into a municipal sewage pipe is realized; when the rainfall is great, the rain and sewage mixed water flowing into the rain and sewage mixing pipe is mainly rainwater, when the water level in the water level meter measuring current-limiting well is higher than the preset water level, the control device controls the electric control valve to be closed, the water level in the overflow well is raised, and when the water level in the overflow well is raised to the overflow port position, rainwater and sewage can be discharged to a river channel from the overflow port, so that overlarge drainage pressure can not be caused to the municipal sewage pipe. The system has lower reconstruction cost and is particularly suitable for reconstructing a sewage disposal system under the condition of rain and sewage mixed connection.

However, the methods provided in the prior art all need to be controlled by using an electromagnetic valve, or a common valve is used for being matched with manual control, and the two methods have defects that the common valve is used for being manually controlled, an operator is required to perform rain operation, the operation is dangerous, the working efficiency is low, and the electromagnetic valve is required to be provided with electrical parts such as a power supply, a liquid level meter and the like, so that detection errors and power faults cannot be avoided.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides a drainage system with a rain and sewage mixed connection flow limiting structure, which can realize the effect of realizing automatic flow limiting without adopting electric control components such as electromagnetic valves and the like. The technical scheme of the utility model is as follows:

the drainage system with the rain and sewage mixed connection flow limiting structure comprises a buffer well, an overflow pipe and a flow limiting valve, wherein the overflow well, the overflow pipe and the flow limiting valve are arranged in the buffer well, and the buffer well is connected to a river channel through a drain pipe; the overflow well is respectively communicated with the rainwater-sewage mixing pipe, the overflow pipe and the sewage pipe, the flow limiting valve is arranged on the sewage pipe, and the outlet of the overflow pipe is positioned right above the flow limiting valve; the utility model provides a sewage pipe is closed to the flow drive restriction valve of overflow pipe export, in order to realize this effect, provides the restriction valve of following structure, including valve housing, connecting rod, baffle, piece that resets, valve housing bottom is connected with the exit end at sewage pipe top, the baffle sets up in the bottom of valve housing, the connecting rod runs through valve housing top and baffle, connecting rod top fixed connection receiver, bottom fixed connection dog, the piece that resets is located inside the valve housing.

As an exemplary embodiment, the receiving member is a receiving groove with a concave upper surface, so as to receive the water flow falling from the overflow pipe.

As an exemplary embodiment, the restoring member is a compression spring, the compression spring is located inside the valve housing, the top is fixed to the connecting rod, and the bottom is fixed to the partition; in the relaxed state of the compression spring, the sewer pipe is not blocked by the stopper, and in the compressed state of the compression spring, the outlet end of the bottom of the sewer pipe is blocked by the stopper.

Preferably, the bottom of the stopper is tapered in order to allow the stopper to move to the bottom of the sewage pipe more smoothly.

Preferably, the sewage pipe is arranged at the bottom of the overflow well, so that sewage is conveniently and thoroughly discharged.

Further, the other end of the sewage pipe is connected to a sewage treatment system.

Preferably, in order to avoid the backflow of the river water, the drain pipe is provided with a one-way valve, and only the water is allowed to flow to the river.

Preferably, the sewage pipe is a three-way pipe, the inlet end of the sewage pipe is connected to a sewage outlet on the side wall of the overflow well, the top outlet end of the sewage pipe is provided with a flow limiting valve, the outlet of the overflow pipe is positioned right above the flow limiting valve, and the water discharged from the outlet of the overflow pipe drives the flow limiting valve to close the sewage pipe.

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

in the traditional drainage system, the overflow well only plays an overflow role, and the flow limiting device provided with the electromagnetic valve and the controller is often adopted to control drainage. Not only saves energy consumption, but also has simple and reliable result and greatly reduces operation cost.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

FIG. 1 is a schematic view of a piping path in a rainwater-free or small rainwater condition of a drainage system provided by the present utility model;

FIG. 2 is a schematic diagram of a pipeline path in a heavy rain condition of the drainage system according to the present utility model;

fig. 3 is a schematic view of a flow limiting valve structure of a drainage system according to the present utility model.

The device comprises a 1-overflow well, a 2-buffer well, a 3-rain and sewage mixing pipe, a 4-sewage outlet, a 5-overflow outlet, a 6-sewage pipe, a 7-overflow pipe, an 8-flow limiting valve, a 9-water outlet, a 10-water outlet, an 11-river and a 12-one-way valve, wherein the water inlet is arranged on the bottom of the overflow well;

81-valve housing, 82-receiving groove, 83-connecting rod, 84-stop, 85-baffle, 86 compress spring.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The drainage system with the rain and sewage mixed connection flow limiting structure comprises an overflow well 1, a buffer well 2, a rain and sewage mixed connection pipe 3, a drain outlet 4, an overflow outlet 5, a sewage pipe 6, an overflow pipe 7, a flow limiting valve 8, a drainage outlet 9 and a drainage pipe 10, wherein the overflow well 1, the overflow pipe 7 and the flow limiting valve 8 are positioned in the buffer well 2, the rain and sewage mixed connection pipe 3 and the overflow pipe 7 are respectively communicated to the side wall of the overflow well 1, and the drain outlet 4 is arranged at the bottom of the overflow well 1, is communicated with the sewage pipe 6 and is connected to municipal sewage treatment facilities through the sewage pipe 6; the overflow pipe 7 is communicated with the overflow well 1 through an overflow port 5 arranged on the side wall of the overflow well 1, and the overflow port 5 and the overflow pipe 7 are both positioned above (preferably) the sewage outlet 4 and the sewage pipe 6. The bottom of the buffer well 2 is connected to a drain pipe 10 through a drain outlet 9, and the drain pipe 10 is communicated with a river channel 11.

The sewage pipe 6 is a three-way pipe, the inlet end is connected to the sewage outlet 4, the top outlet end is provided with a flow limiting valve 8, the outlet of the overflow pipe 7 is positioned right above the flow limiting valve 8, and the water discharged from the outlet of the overflow pipe 7 drives the flow limiting valve 8 to close the sewage pipe 6.

The structure of the flow limiting valve 8 is shown in fig. 3, and comprises a valve housing 81, a receiving groove 82, a connecting rod 83, a stop block 84, a partition plate 85 and a compression spring 86, wherein the bottom end of the valve housing 81 is connected with the outlet end of the top of the sewage pipe 6 through a threaded structure, the partition plate 85 is arranged at the bottom of the valve housing 81, the connecting rod 83 penetrates through the top of the valve housing 81 and the partition plate 85, the top of the connecting rod 83 is fixedly connected with the receiving groove 82, the bottom is fixedly connected with the stop block 84, the compression spring 86 is positioned inside the valve housing 81, the top is fixed to the connecting rod 83, and the bottom is fixed to the partition plate 85. In the relaxed state of the compression spring 86, the sewage pipe 6 is not blocked by the stopper 84, and in the compressed state of the compression spring 86, the outlet end of the bottom of the sewage pipe 6 is blocked by the stopper 84.

In order to allow the stopper 84 to move to the bottom of the sewage pipe 6 more smoothly, the bottom of the stopper 84 is tapered.

The upper surface of the receiving groove 81 is concave so as to receive the water flow falling from the overflow pipe 7.

In order to avoid the reverse flow of the river water, the drain pipe 10 is provided with a one-way valve 12, which only allows the water flow to the river.

The operation process of the drainage system provided by the utility model is as follows: as shown in fig. 1, in the absence of rain or light rain, the water flow mainly of sewage introduced from the rain and sewage mixing pipe 3 enters the overflow well 1, flows to the municipal sewage treatment system through the sewage outlet 4 and the sewage pipe 6, and is treated. In heavy rain, a large amount of rainwater and sewage mixture is introduced by the rainwater and sewage mixing pipe 3 in a short time, and in the initial stage, the sewage is mainly discharged to a municipal sewage treatment system by the sewage outlet 4 and the sewage pipe 6, and the sewage is mainly discharged into a river channel with the water quantity increasing in the later stage, wherein the sewage is less in content, as shown in fig. 2, the water level in the overflow well 1 continuously rises until the overflow port 5 flows out through the overflow pipe 7, downward pressure is applied to the receiving groove 82 of the flow limiting valve 8, the connecting rod 83 is pushed to move downwards, so that the pipeline at the bottom end of the sewage pipe 6 is blocked by the stop 84, the water flows into the buffer well 2, and the water flows into the river channel by the water outlet 9 and the water outlet pipe 10 of the buffer well; the compression spring 86 is pressed downward while the link 83 moves downward, the compression spring 86 generates an upward rebound force, and the compression spring 86 drives the link 83 to return when the rainfall is reduced.

The utility model provides a current limiting structure, which can realize automatic opening and closing of a sewage pipe without adopting electric equipment such as a controller, an electromagnetic valve and the like, and realize automatic switching of a municipal sewage treatment passage and a river passage. Not only saves energy consumption, but also has simple and reliable result and greatly reduces operation cost.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The drainage system with the rain and sewage mixed connection flow limiting structure is characterized by comprising a buffer well, an overflow pipe and a flow limiting valve, wherein the overflow well, the overflow pipe and the flow limiting valve are arranged in the buffer well, and the buffer well is connected to a river channel through a drainage pipe; the overflow well is respectively communicated with the rainwater-sewage mixing pipe, the overflow pipe and the sewage pipe, the flow limiting valve is arranged on the sewage pipe, and the outlet of the overflow pipe is positioned right above the flow limiting valve;

the flow limiting valve comprises a valve shell, a connecting rod, a partition plate and a reset piece, wherein the bottom end of the valve shell is connected with the outlet end of the top of the sewage pipe, the partition plate is arranged at the bottom of the valve shell, the connecting rod penetrates through the top of the valve shell and the partition plate, the top of the connecting rod is fixedly connected with a receiving piece, the bottom is fixedly connected with a stop block, and the reset piece is positioned inside the valve shell.

2. The drainage system with a rain and sewage hybrid current limiting structure according to claim 1, wherein the receiving member is a receiving groove with a concave upper surface.

3. The drainage system with a rain and sewage hybrid current limiting structure according to claim 1, wherein the return member is a compression spring, the compression spring is located inside the valve housing, the top is fixed to the connecting rod, and the bottom is fixed to the partition; in the relaxed state of the compression spring, the sewer pipe is not blocked by the stopper, and in the compressed state of the compression spring, the outlet end of the bottom of the sewer pipe is blocked by the stopper.

4. The drainage system with a rain and sewage hybrid current limiting structure according to claim 1, wherein the bottom of the block is tapered.

5. The drainage system with a rain and sewage hybrid current limiting structure according to claim 1, wherein the sewage pipe is arranged at the bottom of the overflow well.

6. A drainage system with a rain and sewage hybrid current limiting structure according to claim 1, wherein the other end of the sewer pipe is connected to a sewage treatment system.

7. A drainage system with a rain and sewage hybrid current limiting structure according to claim 1, wherein the drainage pipe is provided with a one-way valve which only allows water flow to the river.

8. The drainage system with a rain and sewage mixed connection flow limiting structure according to claim 1, wherein the sewage pipe is a three-way pipe, an inlet end is connected to a drain outlet on the side wall of the overflow well, and a flow limiting valve is arranged at the top outlet end.