Flow monitoring device and method for low-flow drainage system of community

Abstract

The invention provides a flow monitoring device and method for a community low-flow drainage system, the device comprises an inflow control part, a hole shrinkage measuring part and an outflow control part, the inflow control part comprises a plurality of supporting legs for connection, the hole shrinkage measuring part comprises an overflow pipe, the supporting legs are connected to one end of the overflow pipe, and the outflow control part is connected with the hole shrinkage measuring part. The outer wall of the middle of the overflowing pipe is sleeved with an inflatable rubber ring, the inflatable rubber ring is connected with the overflowing pipe in an expanding mode, the inflatable rubber ring enables the overflowing pipe and the inspection well to be in a sealed state after being connected through inflation and deflation adjustment, and a flow meter is further arranged on the overflowing pipe and located on the downstream portion of the inflatable rubber ring. The monitoring device and the inspection well are fixedly connected through the inflow control component, the stability of the measuring process is guaranteed, meanwhile, the diameter shrinkage measuring component is adopted for adjusting the overflowing diameter of the flow monitoring device, the water outlet amount of the flow monitoring device is made to be equal to the water inlet amount in the inspection well, and the measuring accuracy is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the field of urban drainage flow monitoring, and relates to a flow monitoring device and method for a low-flow drainage system in a residential area. Background Art

[0002] Drainage networks are crucial urban infrastructure, responsible for transporting wastewater generated by various urban drainage systems. Their stability is crucial to the safe operation of the city. Because drainage networks are often buried deep underground and are relatively hidden, it's difficult to directly understand their internal operating conditions. Therefore, various monitoring devices are required to conduct measurements. Based on accurate and reliable monitoring data, these devices assist relevant organizations in maintaining and managing the drainage network.

[0003] Drainage networks are divided into main, trunk, and branch pipes. Branch pipes directly connect to individual drainage households, presenting challenges such as low flow and low liquid levels. Existing flow monitoring equipment is typically used for pipelines with relatively high flow and liquid levels, such as main and trunk pipes. However, when used to measure flow at a single household, it can lead to low flow rates, large measurement errors, or even inability to measure flow. Therefore, obtaining high-precision flow data for low-flow drainage networks has become a pressing technical challenge. Summary of the Invention

[0004] The purpose of the present invention is to address the defects of the existing technology and provide a flow monitoring device and method for a low-flow drainage system in a residential area. The device and method can be used to obtain accurate flow data under low-flow and low-liquid-level conditions in the drainage network.

[0005] In a first aspect of the present invention, a flow monitoring device for a low-flow drainage system in a residential area is provided, comprising an inflow control component, a diameter reduction measurement component, and an outflow control component, wherein the diameter reduction measurement component is connected to the inflow control component, and the outflow control component is connected to the diameter reduction measurement component; wherein, The outflow control component is used to control and stabilize the angle of the outflow pipe to ensure normal outflow of water in the pipe. The diameter reduction measurement component is used to control the pipe diameter to make the water flow in the pipe full and complete the flow measurement. The inflow control component is used to stabilize the measuring equipment to achieve stable installation. The inflow control component includes a plurality of supporting legs for connection, and the plurality of supporting legs are arranged circumferentially; The reduced diameter measuring component includes a flow tube, the multiple supporting legs are connected to one end of the flow tube, an inflatable rubber ring is sleeved on the middle outer wall of the flow tube, the inflatable rubber ring is tensionedly connected to the flow tube, and the inflatable rubber ring is adjusted by inflation and deflation to make the flow tube and the inspection well in a sealed state. A flow meter is also provided on the flow tube, and the flow meter is located downstream of the inflatable rubber ring.

[0006] Preferably, the outflow control component includes a flap gate connected to the end of the flow tube, and also includes an adjustment air pillow, which is used to abut against the end of the flow tube during installation to stabilize the outflow state after measurement.

[0007] Preferably, the inflow control component also includes an auxiliary water pump and a diversion plate, the auxiliary water pump is arranged at the water inlet end of the flow pipe, the diversion plate is detachably connected to the center of the plurality of support feet, and a circular diversion hole is provided in the center of the diversion plate, and the diversion hole is concentrically arranged with the flow pipe.

[0008] Preferably, the supporting foot is Z-shaped as a whole, and the supporting foot is fixedly connected to the water inlet end surface of the flow pipe.

[0009] Preferably, the support legs and the guide plate are both made of stainless steel.

[0010] A second aspect of the present invention provides a method for monitoring flow in a low-flow drainage system in a residential area, using any of the above-mentioned flow monitoring devices for a low-flow drainage system in a residential area, specifically comprising: S1: Connect the flow monitoring device to the water outlet at the bottom of the inspection well, connect multiple support legs to the inside and / or end of the water outlet, and seal the flow pipe to the water outlet. Inflate the inflatable rubber ring so that the outer wall of the inflatable rubber ring is sealed to the water outlet of the inspection well, and then adjust the flap gate to keep the water surface in the inspection well at a stable level. S2: Start the flow meter to measure the flow data in the flow pipe; S3: After the measurement is completed, the inflatable rubber ring is exhausted to increase the flow diameter of the flow pipe, and the accumulated water in the inspection well is drained, and then the flow monitoring device is removed.

[0011] Preferably, in S1, when the upstream water is small, the auxiliary water pump is installed at the water inlet end of the flow pipe, the auxiliary water pump is started, and the auxiliary water pump and the flap gate are adjusted to keep the water surface in the inspection well at a stable plane before proceeding to S2.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a flow monitoring device and method for a low-flow drainage system in a residential area. An inflow control component is used to achieve a fixed connection between the monitoring device and the inspection well, thereby ensuring the stability of the measurement process. A diameter-reducing measurement component is used to adjust the flow diameter of the flow monitoring device, thereby ensuring that the water output of the flow monitoring device is equal to the water inlet into the inspection well, thereby ensuring the accuracy of the measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the invention.

[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the invention.

[0015] Figure 3 It is a schematic diagram of the implementation status of the present invention.

[0016] Figure 4 It is another schematic diagram of an implementation state of the present invention.

[0017] In the above figure: 10, inflow control component; 11, support leg; 12, auxiliary water pump; 13, diversion plate; 14, diversion hole; 20, reduction measuring component; 21, flow pipe; 22, inflatable rubber ring; 23, flow meter; 30, outflow control component; 31, flap gate; 32, adjustment air pillow; A, inspection well. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution of the present invention, the preferred embodiments of the present invention are described below in conjunction with specific embodiments. However, it should be understood that the drawings are only for illustrative purposes and cannot be understood as limiting this patent; in order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted; the positional relationships described in the drawings are only for illustrative purposes and cannot be understood as limiting this patent.

[0019] As an embodiment of the present invention, see the attached Figure 1-Figure 2 This embodiment provides a flow monitoring device for a low-flow drainage system in a residential area, comprising an inflow control component 10, a diameter reduction measurement component 20, and an outflow control component 30. The diameter reduction measurement component 20 is connected to the inflow control component 10, and the outflow control component 30 is connected to the diameter reduction measurement component 20; wherein, The outflow control component 30 is used to control and stabilize the angle of the outflow pipe to ensure normal outflow of water in the pipe. The diameter reduction measurement component 20 is used to control the pipe diameter to make the water flow in the pipe full and complete the flow measurement. The inflow control component 10 is used to stabilize the measurement equipment and achieve stable installation. The inflow control component 10 includes a plurality of supporting legs 11 for connection, and the plurality of supporting legs 11 are arranged circumferentially; The reduced diameter measuring component 20 includes a flow tube 21, and the multiple supporting legs 11 are connected to one end of the flow tube 21. An inflatable rubber ring 22 is sleeved on the middle outer wall of the flow tube 21. The inflatable rubber ring 22 is tensioned and connected to the flow tube 21. The inflatable rubber ring 22 is adjusted by inflation and deflation to make the flow tube 21 sealed after being connected to the inspection well A. A flow meter 23 is also provided on the flow tube 21. The flow meter 23 is located downstream of the inflatable rubber ring 22. The flow meter is preferably an electromagnetic flow meter.

[0020] Specifically, in the above embodiment, the outflow control component 30 includes a flap gate 31 connected to the end of the flow tube 21, and also includes an adjustment air pillow 32. The adjustment air pillow 32 is used to abut against the end of the flow tube 21 during installation to stabilize the outflow state after measurement.

[0021] In some preferred embodiments, the inflow control component 10 also includes an auxiliary water pump 12 and a diversion plate 13. The auxiliary water pump 12 is arranged at the water inlet end of the flow pipe 21. The diversion plate 13 is detachably connected to the center of multiple supporting feet 11. A circular diversion hole 14 is provided in the center of the diversion plate 13. The diversion hole 14 is concentrically arranged with the flow pipe 21.

[0022] In order to increase its waterproofness, in this embodiment, in order to improve the connection stability, ensure that the flow monitoring device is firm during the measurement process, and prevent it from being affected by the water flow and becoming detached from the inspection well, the support foot 11 in this embodiment is Z-shaped as a whole, and the support foot 11 is fixedly connected to the water inlet end face of the flow pipe 21.

[0023] It can be understood that the drainage system is a non-pressurized water system. Especially in a low-flow drainage system, the water flow is small and the impact of the water flow on the pipeline system is small. The present invention uses support feet 11 to connect to the inspection well or the drainage pipe to provide a stable monitoring environment.

[0024] In some embodiments, in order to improve the anti-corrosion performance and extend the service life of the drainage system, the support legs 11 and the drainage plate 13 in this embodiment are both made of stainless steel.

[0025] As another preferred embodiment of the present invention, this embodiment provides a method for monitoring the flow of a low-flow drainage system in a residential area, using the device for monitoring the flow of a low-flow drainage system in a residential area described in any of the above embodiments, specifically comprising: S1: Connect the flow monitoring device to the water outlet at the bottom of inspection well A, connect multiple support legs 11 to the inside and / or end of the water outlet, and seal the flow pipe 21 with the water outlet. Inflate the inflatable rubber ring 22 so that the outer wall of the inflatable rubber ring 22 is sealed with the water outlet of inspection well A, and then adjust the flap gate 31 to keep the water surface in the inspection well at a stable level, that is, the water inflow per unit time of the inspection well is equal to the water outflow. S2: Start the flow meter 23 to measure the flow data in the flow pipe 21; S3: After the measurement is completed, the inflatable rubber ring 22 is exhausted to increase the flow diameter of the flow pipe 21. After the accumulated water in the inspection well A is drained, the flow monitoring device can be dismantled.

[0026] In some preferred embodiments, in S1, when the upstream water is small, the auxiliary water pump 12 is installed at the water inlet end of the flow pipe, the auxiliary water pump 12 is started, and the auxiliary water pump 12 and the flap gate 31 are adjusted to keep the water surface in the inspection well A at a stable plane before proceeding to S2.

[0027] It should be noted that although the above embodiment only provides a measurement method in an inspection well, the present invention is also applicable to measurements directly in a drainage pipe. Changes in the measurement scene fall within the scope of protection of the present invention as long as they do not deviate from the measurement method of the present invention.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A flow monitoring device for a low-flow drainage system in a residential area, characterized by: It includes an inflow control component, a diameter reduction measurement component and an outflow control component, wherein the diameter reduction measurement component is connected to the inflow control component, and the outflow control component is connected to the diameter reduction measurement component; wherein, The outflow control component is used to control and stabilize the angle of the outflow pipe to ensure normal outflow of water in the pipe. The diameter reduction measurement component is used to control the pipe diameter to make the water flow in the pipe full and complete the flow measurement. The inflow control component is used to stabilize the measuring equipment to achieve stable installation. The inflow control component includes a plurality of supporting legs for connection, and the plurality of supporting legs are arranged circumferentially; The reduced diameter measuring component includes a flow tube, the multiple supporting legs are connected to one end of the flow tube, an inflatable rubber ring is sleeved on the middle outer wall of the flow tube, the inflatable rubber ring is tensionedly connected to the flow tube, and the inflatable rubber ring is adjusted by inflation and deflation to make the flow tube and the inspection well in a sealed state. A flow meter is also provided on the flow tube, and the flow meter is located downstream of the inflatable rubber ring.

2. The flow monitoring device for a low-flow drainage system in a residential area according to claim 1, characterized in that: The outflow control component includes a flap gate connected to the end of the flow tube, and also includes an adjustment air pillow. The adjustment air pillow is used to abut against the end of the flow tube during installation to stabilize the outflow state after measurement.

3. The flow monitoring device for a low-flow drainage system in a residential area according to claim 1, characterized in that: The inflow control component also includes an auxiliary water pump and a diversion plate. The auxiliary water pump is arranged at the water inlet end of the flow pipe. The diversion plate is detachably connected to the center of the multiple supporting feet. A circular diversion hole is provided in the center of the diversion plate. The diversion hole is concentrically arranged with the flow pipe.

4. The flow monitoring device for a low-flow drainage system in a residential area according to claim 1, characterized in that: The supporting foot is Z-shaped as a whole, and the supporting foot is fixedly connected to the water inlet end surface of the flow pipe.

5. The flow monitoring device for a low-flow drainage system in a residential area according to claim 3, characterized in that: The supporting legs and the guide plate are both made of stainless steel.

6. A method for monitoring flow of a low-flow drainage system in a residential area, characterized in that: The flow monitoring device for a low-flow drainage system in a residential area according to any one of claims 1 to 5 specifically comprises: S1: Connect the flow monitoring device to the water outlet at the bottom of the inspection well, connect multiple support legs to the inside and / or end of the water outlet, and seal the flow pipe to the water outlet. Inflate the inflatable rubber ring so that the outer wall of the inflatable rubber ring is sealed to the water outlet of the inspection well, and then adjust the flap gate to keep the water surface in the inspection well at a stable level. S2: Start the flow meter to measure the flow data in the flow pipe; S3: After the measurement is completed, the inflatable rubber ring is exhausted to increase the flow diameter of the flow pipe, and the accumulated water in the inspection well is drained, and then the flow monitoring device is removed.

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