Self-adaptive water flow stabilizing device for sewage intercepting pipeline

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a water quantity self-adaptive flow stabilizer for a sewage intercepting pipeline. The problem that the drainage capacity is limited is solved. A water inlet is formed in the tangential direction of the bottom of the pipe body, a water outlet is formed in the top end of the pipe body, an air suction pipe is communicated with the middle of the end face of the pipe body in a penetrating mode, a water inlet flow guide component and a cyclone drainage component are arranged in the pipe body, and a cyclone release hole is formed in the pipe body. Inlet fluid is guided to the top end in the circumferential direction of the pipe body through the water inlet flow guide component, the cyclone flow guide component is located between the water inlet flow guide component and the water outlet, and the cyclone release hole is located between the water inlet flow guide component and the cyclone flow guide component. The pipe body can serve as a connector to be installed at the position where an upstream branch pipe is connected into a main pipe, flow control is conducted, the drainage capacity of the pollutant intercepting main pipe is improved, drainage pressure is relieved, it is guaranteed that the flow entering the pollutant intercepting main pipe is consistent with the designed flow, and the pollutant intercepting main pipe and a system of the pollutant intercepting main pipe can operate safely even in the rainstorm season.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a self - adaptive flow - stabilizing device for the water volume of a sewage interception pipeline. Background Technique

[0002] The design water volume of the urban sewage interception main pipe is designed according to the interception multiple or the rainfall runoff volume with a certain return period, and the operation state is full - flow and non - pressure. However, in actual operation, when the rainfall exceeds the design flow, the sewage interception main pipe often operates under overload, or even under pressure. At this time, the inspection well of the sewage interception main pipe located in the relatively low - lying area becomes the weak link of the whole system, and it is very easy to have the situation of combined sewage overflow on the ground and urban waterlogging. A large amount of pollutants directly overflow from the sewage interception main pipe to the ground, with sewage flowing across and foul smells spreading everywhere, causing great impact on the surrounding environment.

[0003] The fundamental reason for the overflow caused by the overload operation of the sewage interception main pipe is that in the traditional sewage interception system, the water volume entering the main pipe is unstable, and the drainage capacity of the sewage interception main pipe is limited. As a result, the flow rate flowing from the branch pipe into the main pipe during rainy days or special periods may be much larger than the drainage capacity of the sewage interception main pipe, making it difficult to relieve the drainage pressure. Summary of the Invention

[0004] The utility model provides a self - adaptive flow - stabilizing device for the water volume of a sewage interception pipeline, which can install the pipe body as a joint at the place where the upstream branch pipe is connected to the main pipe for flow control, improve the drainage capacity of the sewage interception main pipe, relieve the drainage pressure, ensure that the flow rate entering the sewage interception main pipe is consistent with the design flow rate, and enable the sewage interception main pipe and its system to operate safely even in the rainy season.

[0005] In order to solve the above - mentioned technical problems, the utility model adopts the following technical solutions:

[0006] A self - adaptive flow - stabilizing device for the water volume of a sewage interception pipeline, including a pipe body in a conical shape. An inlet is opened in the tangential direction at the bottom of the pipe body, an outlet is opened at the top of the pipe body, an air suction pipe penetrates and communicates with the middle of the end face of the pipe body. An inlet flow - guiding component and a cyclone flow - guiding component are arranged inside the pipe body. A cyclone release hole is opened on the pipe body. The entering fluid is guided along the circumferential direction of the pipe body to the top through the inlet flow - guiding component. The cyclone flow - guiding component is located between the inlet flow - guiding component and the outlet, and the cyclone release hole is located between the inlet flow - guiding component and the cyclone flow - guiding component.

[0007] Further, the cyclone flow - guiding component is parallel to the inlet flow - guiding component.

[0008] Further, the bottom end of the inlet flow - guiding component is butted against the inlet, and the bottom end of the cyclone flow - guiding component is butted against the inlet.

[0009] Further, a lifting hook is arranged at the top of the pipe body.

[0010] Furthermore, both the cyclone drainage component and the water inlet diversion component are in sheet-like structures.

[0011] Advantages of the present utility model:

[0012] It can use the pipe body as a joint to be installed at the connection of the upstream branch pipe to the main pipe for flow control, improve the drainage capacity of the intercepting main pipe, relieve the drainage pressure, ensure that the flow rate entering the intercepting main pipe is consistent with the designed flow rate, and even in the rainy season, the intercepting main pipe and its system can operate safely. Description of the Drawings

[0013] Figure 1 It is a structural sectional view of the water volume self-adaptive flow stabilizing device for this sewage interception pipeline;

[0014] Figure 2 It is a structural schematic diagram of the water volume self-adaptive flow stabilizing device for this sewage interception pipeline;

[0015] Figure 3 It is a side view of the structure of the pipe body;

[0016] Figure 4 It is a structural schematic diagram of the water inlet diversion component and the cyclone drainage component;

[0017] Description of the Reference Numerals:

[0018] 1. Pipe body; 2. Water inlet; 3. Water outlet; 4. Suction pipe; 5. Water inlet diversion component; 6. Cyclone drainage component; 7. Cyclone release hole; 8. Lifting hook. Specific Embodiments

[0019] For the convenience of understanding by those skilled in the art, the present utility model will be further described below in conjunction with the embodiments and the drawings. The content mentioned in the embodiments does not limit the present utility model.

[0020] As Figures 1-4 shown, a water volume self-adaptive flow stabilizing device for a sewage interception pipeline includes a conical pipe body 1. An inlet 2 is provided at the tangential direction of the bottom of the pipe body 1, an outlet 3 is provided at the top of the pipe body 1, an air suction pipe 4 penetrates and communicates with the middle of the end face of the pipe body 1, a water inlet diversion component 5 and a cyclone drainage component 6 are arranged inside the pipe body 1, a cyclone release hole 7 is provided on the pipe body 1, the incoming fluid is guided along the circumferential direction of the pipe body 1 to the top through the water inlet diversion component 5, the cyclone drainage component 6 is located between the water inlet diversion component 5 and the outlet 3, and the cyclone release hole 7 is located between the water inlet diversion component 5 and the cyclone drainage component 6.

[0021] In this embodiment, the cyclone drainage component 6 is parallel to the water inlet diversion component 5.

[0022] In this embodiment, the bottom end of the water inlet diversion component 5 is docked with the water inlet 2, and the bottom end of the air cyclone diversion component 6 is docked with the water inlet 2.

[0023] In this embodiment, a lifting hook 8 is provided at the top end of the pipe body 1. It is convenient for hoisting and positioning during installation, and is beneficial for moving or placing the pipe body 1.

[0024] In this embodiment, both the air cyclone diversion component 6 and the water inlet diversion component 5 are in a sheet structure.

[0025] Working principle:

[0026] As Figures 1-4 shown, in the first working condition;

[0027] The influent flow rate is less than the designed flow rate. The flow control function of the device is completely realized by the water inlet 2 and the water outlet 3. During this period, the water head upstream of the pipe body 1 will increase with the increase of the influent flow rate.

[0028] When the water level completely submerges the water inlet 2 of the device, the flow rate approaches or reaches the designed maximum value, and the device enters the second operating condition.

[0029] In the second working condition;

[0030] Due to the water pressure outside the device, the fluid enters from the water inlet 2 and enters the pipe body 1 along the tangential direction through the water inlet diversion component 5. Because the flow rate is too fast, air is inhaled from the suction pipe 4 and a cyclone is generated in the area near the water outlet 3 at the top end of the pipe body 1 through the air cyclone diversion component 6, and finally discharged through the water outlet 3. The outflow rate at this time will be lower than that in the first working condition. This is because more air is entrained in the effluent without a significant increase in the flow rate.

[0031] As the upstream water level further rises, the pipe body 1 and the water inlet 2 are completely submerged, and the fluid entering the pipe body 1 can smoothly enter the inner top of the pipe body 1. Since the pipe body 1 is conical, a vortex can be smoothly formed. At this moment, the fluid passing capacity of the pipe body 1 is reduced to the lowest level. This is caused by the inhalation of gas inside the pipe body 1, forming a stable air-water vortex in the inner cavity of the pipe body 1. There is no water in the middle of the vortex, and the air-water vortex reduces the flow area of the suction pipe 4 nozzle.

[0032] When the water volume exceeds 105% of the designed water volume, it enters the third working condition;

[0033] At this time, the increase in the fluid passing capacity of the device is completely adjusted by the change in the flow rate caused by the rise of the water head. After the flow rate becomes faster, more gas can be inhaled from the suction pipe 4 at the top, which will greatly prevent the fluid from passing through the suction pipe 4, and even reduce the flow rate to 90%. When too much air is inhaled, the gas will accumulate at the air cyclone release hole 7, and when the pressure is too high, it will be discharged through the air cyclone release hole 7, and the flow rate will increase again.

[0034] When the flow rate exceeds the designed flow rate, a large amount of gas will be inhaled. Thereafter, it will repeatedly operate between 90% and 105% of the designed flow rate, playing a role in peak shaving and reducing the pressure at the downstream water outlet 3. This enables the water output to be stabilized within the range allowed by the designed maximum value, playing a very good role in steady flow.

[0035] In summary, by means of the device provided, the pipe body can be installed as a joint at the connection of the upstream branch pipe to the main pipe for flow control, improving the drainage capacity of the intercepting main pipe, relieving the drainage pressure, ensuring that the flow rate entering the intercepting main pipe is consistent with the designed flow rate. Even in the rainy season, the intercepting main pipe and its system can operate safely.

[0036] All technical features in this embodiment can be freely combined according to actual needs.

[0037] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0039] The above embodiments are the preferred implementation schemes of the present invention. In addition, there are other implementation methods. Any obvious substitution without departing from the concept of the technical solution is within the protection scope of the present invention.

Claims

1. An adaptive flow-stabilizing device for the water volume of a sewage interception pipeline, comprising a pipe body in a conical shape. An inlet is provided at the tangential direction of the bottom of the pipe body, and an outlet is provided at the top of the pipe body. It is characterized in that, An air suction pipe penetrates and communicates with the middle of the end face of the pipe body. An inlet water diversion component and a cyclone diversion component are arranged inside the pipe body. A cyclone release hole is formed in the pipe body. The inlet water diversion component guides the incoming fluid along the circumferential direction of the pipe body to the top end. The cyclone diversion component is located between the inlet water diversion component and the water outlet, and the cyclone release hole is located between the inlet water diversion component and the cyclone diversion component.

2. The sewage interception pipeline water volume self-adaptive steady flow device according to claim 1, characterized in that, The cyclone diversion component is parallel to the inlet water diversion component.

3. The sewage interception pipeline water volume self-adaptive steady flow device according to claim 2, characterized in that, The bottom end of the inlet water diversion component is butted against the water inlet, and the bottom end of the cyclone diversion component is butted against the water inlet.

4. The sewage interception pipeline water volume self-adaptive steady flow device according to claim 3, characterized in that, A lifting hook is arranged at the top end of the pipe body.

5. The sewage interception pipeline water volume self-adaptive steady flow device according to claim 3, characterized in that Both the cyclone diversion component and the inlet water diversion component are in sheet-like structures.

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