Rain sewage intelligent flow limiting system
By using a level gauge to automatically adjust the gate opening in the intelligent flow limiting system of rainwater and sewage, the problem of excessive pressure on the main downstream sewage pipeline caused by rainwater invasion into the sewage system is solved, and the separation and normal operation of sewage and rainwater system is achieved. Avoid sewage overflow and flooding.
Patent Information
- Application Number
- CN202323634350.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-12-28
AI Technical Summary
In the diversion drainage system, rainwater invades the sewage system or mountain torrents invades the rainwater system, causing excessive pressure to the main downstream sewage pipeline and pump station, causing sewage overflow and flooding, affecting normal operation.
Design a smart flow limiting system for rain and sewage, including gate wells and inspection wells. The opening of the gate is automatically adjusted through a level gauge, and the ratio of actual operating flow to pre-controlled flow is calculated based on the liquid level difference and pipeline parameters, so as to automatically adjust the gate opening. to achieve current limit.
Effectively control upstream incoming water, separate sewage and stormwater systems, reduce flooding and overflow problems in downstream sewage or stormwater systems, and ensure the normal operation of the system.
Smart Images
Figure CN222206688U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an intelligent flow limiting system for rainwater and sewage, belonging to the technical field of intelligent flow limiting. Background Art
[0002] In a diversion drainage system, rainwater may intrude into the sewage system, causing high pressure on downstream sewage main pipes and pumping stations, leading to sewage overflow and difficulty in the normal operation of the sewage system.
[0003] In the rainwater system around the mountains, mountain torrents may invade the rainwater system. Due to the limited drainage capacity of the rainwater main pipe, it will affect the access of surrounding plots and cause flooding. Utility Model Content
[0004] The utility model provides a rainwater and sewage intelligent flow limiting system to solve the problem that the downstream sewage main pipe or rainwater main pipe is unable to withstand the intrusion of rainwater into the sewage system or mountain torrents into the rainwater system, resulting in flooding.
[0005] The technical solution adopted by the utility model to solve its technical problems is:
[0006] A smart flow limiting system for rainwater and sewage comprises a gate well and several inspection wells, wherein the several inspection wells are interconnected by a first connecting pipe and are located upstream of the gate well, the inspection well located most upstream among the several inspection wells is connected to an inlet pipe, and the inspection well located most downstream among the several inspection wells is connected to the gate well by a second connecting pipe, a side of the gate well away from the second connecting pipe is connected to an outlet pipe, a liquid level gauge is arranged in the inspection well, a gate is arranged at the connection between the gate well and the second connecting pipe, and the liquid level gauge is arranged upstream of the gate.
[0007] In one embodiment of the present invention, the second connecting pipe is a straight pipe.
[0008] In one embodiment of the present invention, the length of the second connecting pipe is greater than 5 times of its pipe diameter.
[0009] In one embodiment of the present invention, the first connecting pipe is a straight pipe.
[0010] In one embodiment of the present utility model, the liquid level meter includes an ultrasonic liquid level meter, a radar liquid level meter or a static pressure liquid level meter.
[0011] In one implementation of the utility model, the liquid level meter is fixedly connected to the inner wall of the inspection well.
[0012] In one embodiment of the present invention, the gate comprises a hoist-and-close gate or a hydraulic gate.
[0013] The beneficial effects of the utility model are:
[0014] The utility model provides a rainwater and sewage intelligent flow limiting system, and the gate opening can be automatically adjusted according to the liquid level difference of the liquid level meter to achieve upstream flow limiting and ensure the safe and stable operation of the downstream drainage system. The principle of automatic adjustment of the gate opening is to compare the actual operating flow calculated based on the liquid level difference of the liquid level meter and the length, pipe material and diameter of the first connecting pipe with the upstream pre-controlled flow. When the upstream actual operating flow is greater than the upstream pre-controlled flow, the gate opening is automatically reduced, otherwise the gate remains open. The rainwater and sewage intelligent flow limiting system can reasonably control the upstream water, separate the sewage, rainwater and mountain water systems, reduce a large amount of upstream water entering the downstream sewage or rainwater system, ensure the normal operation of the downstream sewage or rainwater system, and avoid sewage overflow or rainwater flooding in important downstream areas. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a front view of a rainwater and sewage intelligent flow limiting system provided by the utility model.
[0016] Figure 2 It is a cross-sectional view of a rainwater and sewage intelligent flow limiting system provided by the utility model.
[0017] In the figure: 1. liquid level meter; 2. inspection well; 3. gate well; 4. gate; 5. water inlet pipe; 6. water outlet pipe; 7. first connecting pipe; 8. second connecting pipe. DETAILED DESCRIPTION
[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.
[0019] In the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0020] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0021] See also Figure 1 and Figure 2 As shown, a smart flow limiting system for rainwater and sewage includes a gate well 3 and several inspection wells 2, wherein the several inspection wells 2 are interconnected by a first connecting pipe 7 and are located upstream of the gate well 3, the inspection well 2 located most upstream among the several inspection wells 2 is connected to an inlet pipe 5, and the inspection well 2 located most downstream among the several inspection wells 2 is connected to the gate well 3 through a second connecting pipe 8, a side of the gate well 3 away from the second connecting pipe 8 is connected to an outlet pipe 6, a liquid level gauge 1 is arranged in the inspection well 2, a gate 4 is arranged at the connection between the gate well 3 and the second connecting pipe 8, and the liquid level gauge 1 is arranged upstream of the gate 4.
[0022] In this embodiment, the liquid level meter 1 is arranged upstream of the gate 4 to ensure that the water volume can be calculated according to the full pipe flow upstream, and the opening of the gate 4 can be automatically adjusted according to the liquid level difference of the two liquid level meters 1. The rainwater and sewage intelligent flow limiting system provided by the utility model can solve the problem in the prior art that a large amount of upstream water enters, causing the downstream sewage or rainwater system to be unable to operate normally.
[0023] Optionally, in some embodiments, the second connecting pipe 8 is a straight pipe to ensure that the water flow between the two upstream inspection wells 2 is in a stable state.
[0024] Optionally, the length of the second connecting pipe 8 is greater than 5 times of its diameter.
[0025] Optionally, in some embodiments, the first connecting pipe 7 is a straight pipe without reverse slopes, openings, elbows, etc. in the middle, so as to ensure that the water flow between the two inspection wells 2 is smooth and does not cause local losses.
[0026] Optionally, in some embodiments, the liquid level meter 1 includes a liquid level monitoring device such as an ultrasonic liquid level meter, a radar liquid level meter or a hydrostatic liquid level meter.
[0027] Optionally, the liquid level meter 1 is fixedly connected to the inner wall of the inspection well 2 .
[0028] Optionally, in some embodiments, the gate 4 includes an opening adjustment device such as a hoist-and-close gate or a hydraulic gate.
[0029] When in use, a gate 4 is installed in the gate well 3, and a level meter 1 is installed in the two inspection wells 2 located upstream of the gate well 3. The water volume is calculated based on the theory of the upstream land, and the theoretical liquid level height difference can be derived using the Darcy-Weisbach formula and the Manning formula. When the actual liquid level difference detected by the two level meters 1 is greater than the theoretical liquid level difference, the opening of the gate 4 is automatically controlled to be reduced. When the actual liquid level difference detected by the level meter 1 is less than the theoretical liquid level difference, the opening of the gate 4 is automatically increased until the gate is fully opened.
[0030] The utility model provides a rainwater and sewage intelligent flow limiting system, and the opening of the gate 4 can be automatically adjusted according to the liquid level difference of the liquid level meter 1. The principle of automatic adjustment of the opening of the gate 4 is to compare the actual operating flow and the upstream pre-controlled flow calculated based on the liquid level difference of the liquid level meter 1 and the length, pipe material and diameter of the first connecting pipe 7. When the actual upstream operating flow is greater than the upstream pre-controlled flow, the opening of the gate 4 is automatically reduced, otherwise the gate 4 remains open. The rainwater and sewage intelligent flow limiting system can reasonably control the upstream water, realize the separation of sewage, rainwater and mountain water systems, reduce a large amount of upstream water entering the downstream sewage or rainwater system, ensure the normal operation of the downstream sewage or rainwater system, and avoid sewage overflow or rainwater flooding in important downstream areas.
[0031] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0032] The above embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.
[0033] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The description of the above examples is only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without losing the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model. Therefore, the scope of protection of the utility model patent shall be based on the attached claims.
Claims
1. A rainwater and sewage intelligent flow limiting system, characterized in that: It includes a gate well and several inspection wells, which are interconnected by a first connecting pipe and are located upstream of the gate well. The inspection well located most upstream among the inspection wells is connected to an inlet pipe, and the inspection well located most downstream among the inspection wells is connected to the gate well by a second connecting pipe. The side of the gate well away from the second connecting pipe is connected to an outlet pipe. A liquid level gauge is arranged in the inspection well, a gate is arranged at the connection between the gate well and the second connecting pipe, and the liquid level gauge is arranged upstream of the gate.
2. The rainwater and sewage intelligent flow limiting system according to claim 1 is characterized in that: The second connecting pipe is a straight pipe.
3. The rainwater and sewage intelligent flow limiting system according to claim 2 is characterized in that: The length of the second connecting pipe is greater than 5 times of its pipe diameter.
4. The rainwater and sewage intelligent flow limiting system according to claim 1 is characterized in that: The first connecting pipe is a straight pipe.
5. The rainwater and sewage intelligent flow limiting system according to claim 1 is characterized in that: The liquid level meter includes an ultrasonic liquid level meter, a radar liquid level meter or a static pressure liquid level meter.
6. The rainwater and sewage intelligent flow limiting system according to claim 5 is characterized in that: The liquid level meter is fixedly connected to the inner wall of the inspection well.
7. The rainwater and sewage intelligent flow limiting system according to claim 1 is characterized in that: The gate comprises a hoist-and-close gate or a hydraulic gate.