A municipal pipe network flow monitoring device

Abstract

The present application relates to the field of flow monitoring equipment, and in particular to a municipal pipe network flow monitoring device, which includes a support module extending from the wellhead of the inspection well to the bottom of the inspection well, a bearing module connected to the support module at a vertical height corresponding to the interface part of the sewer pipe, a detection module installed on the bearing module for detecting the flow, a central control module installed on the top of the support module for receiving information collected by the detection module, and a flexible connector connected between the support module and the bearing module, wherein the bearing module includes a sealing box, a control mechanism arranged in the sealing box for controlling the overall volume change of the bearing module and the detection module, and the control mechanism is connected to the central control module. The present application has the effect of facilitating the installation and maintenance of the flow monitoring device by the staff.

Description

Technical Field

[0001] The present application relates to the field of flow monitoring equipment, and in particular to a municipal pipe network flow monitoring device. Background Art

[0002] With the implementation of smart municipal administration, municipal departments need to monitor the water level and flow of drainage pipes in real time in order to monitor the operation of urban drainage pipe networks. By analyzing the water level and flow data, they can identify problems such as siltation, overload, overflow, and abnormal water infiltration in the pipes.

[0003] The current monitoring solution for drainage networks is to monitor the flow of drainage pipes by installing Doppler flowmeters and other monitoring equipment in the inspection wells of the main network.

[0004] With regard to the above-mentioned related technologies, the inventors believe that since the Doppler flowmeter needs workers to enter the bottom of the inspection well and manually install the Doppler flowmeter into the sewer pipe during installation, but the number of urban municipal drainage pipelines is huge, it is necessary to install monitoring equipment on each pipeline and regularly maintain the detection equipment, which requires a lot of manpower and material resources. Summary of the invention

[0005] In order to facilitate the staff to install and maintain the flow monitoring device, the present application provides a municipal pipe network flow monitoring device.

[0006] The present application provides a municipal pipe network flow monitoring device, which adopts the following technical solution:

[0007] A municipal pipe network flow monitoring device includes a support module extending from a manhole opening to the bottom of the manhole, a bearing module connected to the support module at a vertical height corresponding to a sewer pipe interface portion, a detection module installed on the bearing module for detecting flow, a central control module installed on the top of the support module for receiving information collected by the detection module, and a flexible connector connected between the support module and the bearing module, wherein the bearing module includes a sealing box and a control mechanism arranged in the sealing box for controlling the overall volume change of the bearing module and the detection module, and the control mechanism is connected to the central control module.

[0008] By adopting the above technical solution, with the cooperation of the support module, the bearing module, the detection module, the central control module and the flexible connector, when installing the monitoring device, the support module is extended from the wellhead into the inspection well, and the bottom end of the support module is extended into the bottom of the inspection well to stabilize the state of the support module, so that the interface between the inspection well and the sewer pipe corresponds to the connection between the support module and the bearing module. In the initial state, the overall volume of the bearing module and the detection module is reduced by operating the control mechanism of the central control module, so that the buoyancy of the sewage on the bearing module and the detection module as a whole is increased, so that the bearing module and the detection module float in the sewage as a whole. Under the action of the sewage, the bearing module connected to the support module through the flexible connector is washed by the water flow. To the sewer pipe, at this time, the control mechanism is operated through the central control module to make the control mechanism drive the overall volume of the bearing module and the detection module to shrink, thereby reducing the overall density of the bearing module and the detection module. When the overall density of the bearing module and the detection module is less than the density of the sewage, the bearing module carries the detection module to sink to the bottom of the water to stabilize the position and state of the detection module in the water. The detection module can accurately detect the flow in the sewer pipe, and transmit the information collected by the detection module to the central control module, so that the staff can observe the data of the detection module without the need for the staff to enter the bottom of the inspection well for installation, and it is convenient for the staff to maintain the monitoring device later, thereby ensuring the safety of the staff during operation.

[0009] Preferably, the support module includes a support tube, an extension tube connected to a side wall of the support tube, and a waterproof joint provided at one end of the extension tube away from the support tube, and the support tube includes a plurality of connecting tube sections connected in sequence.

[0010] By adopting the above technical solution, with the cooperation of the support tube, extension tube and waterproof joint, the wiring between the central control module and the detection module is made through the inside of the support tube and the extension tube, and the support tube is formed by splicing several sections of connecting tubes, so that the staff can arrange the lines between the central control module and the detection module, and it is convenient to transport the support module to prevent the lines from being damaged by erosion of the external environment.

[0011] Preferably, the support module further comprises a fixing frame fixedly connected between the well wall and the support pipe.

[0012] By adopting the above technical solution, a fixing frame is arranged between the well wall and the supporting module to further fix the supporting module, thereby increasing the position of the supporting module in the inspection well and reducing the impact on the bearing module.

[0013] Preferably, a fixed foot is fixedly connected to the bottom end of the support tube, and the bottom end of the fixed foot is conical.

[0014] By adopting the above technical solution, a conical fixed support foot is set at the bottom end of the support tube. When the support module extends into the bottom of the inspection well, it is convenient to insert the support module into the sludge at the bottom of the inspection well through the fixed support foot, thereby limiting the overall position of the support module and further increasing the stability of the support module.

[0015] Preferably, the sealing box includes a first mounting shell, a second mounting shell connected to the first mounting shell, and a flexible sealing ring connected between the first mounting shell and the second mounting shell. A control mechanism is arranged between the first mounting shell and the second mounting shell to drive the first mounting shell and the second mounting shell to move closer to or away from each other. The first mounting shell, the second mounting shell and the flexible sealing ring cooperate to form a sealed cavity.

[0016] By adopting the above technical scheme, a sealed cavity is formed by the cooperation of the first mounting shell, the second mounting shell and the flexible sealing ring. When it is necessary to control the position and state of the sealing box in the sewage, the first mounting shell and the second mounting shell are moved closer to or away from each other by operating the control mechanism, so that the volume of the sealed cavity is reduced or increased to change the overall density of the carrier module and the detection module, and the gap between the first mounting shell and the second mounting shell is sealed by the flexible sealing ring, so that when the volume of the sealing box changes, the first mounting shell and the second mounting shell are always kept in a sealed state, so that the control mechanism and the electrical components of the detection module located inside the sealed cavity are protected to reduce the contact with the sewage.

[0017] Preferably, the overall density of the support module and the detection module varies in the range of 0.75-1.25 times the density of the sewage.

[0018] By adopting the above technical solution, when the overall volume of the carrying module and the detection module reaches the minimum, the overall density of the carrying module and the detection module reaches 1.25 times the density of the sewage. At this time, the buoyancy of the sewage on the carrying module and the detection module is minimal, so that the carrying module and the detection module can sink to the bottom of the sewage more stably. When the overall volume of the carrying module and the detection module reaches the maximum, the overall density of the carrying module and the detection module reaches 0.75 times the density of the sewage. At this time, the sewage makes the carrying module and the detection module float, so that the staff can recycle them.

[0019] Preferably, the detection module includes an ultrasonic flow meter and a first liquid level meter installed on the carrier module.

[0020] By adopting the above technical scheme, in cooperation with the ultrasonic flowmeter and the first liquid level meter, the flow velocity of the sewage is measured by the ultrasonic flowmeter, and the liquid level of the sewage is measured by the first liquid level meter. If the detected sewage level is lower than the cross-sectional height of the sewer pipe, the sewage flow area can be easily obtained by adding the pipe cross-sectional shape and the sewage liquid level height. If the detected sewage level is higher than the cross-sectional height of the sewer pipe, the cross-sectional area of ​​the sewer pipe is used as the sewage flow area, and the sewer flow rate can be calculated in cooperation with the ultrasonic flowmeter.

[0021] Preferably, a second liquid level gauge is provided at the bottom end of the support module.

[0022] By adopting the above technical solution, a second liquid level gauge is added to the support module. When the liquid in the sewer pipe fluctuates greatly, the liquid level information measured by the first liquid level gauge is used to correct the liquid level measured by the second liquid level gauge to increase the stability of the detection data of the detection module.

[0023] Preferably, the support pipe is arranged on one side of the interface between the inspection well and the sewer pipe, and the extension pipe extends to the interface between the inspection well and the sewer pipe.

[0024] By adopting the above technical solution, the support pipe is arranged on one side of the interface between the inspection well and the sewer pipe to reduce the direct impact of the support pipe by the sewage flow, reduce the bending and deformation of the support pipe, and increase the service life of the support pipe.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. With the cooperation of the support module, the bearing module, the detection module, the central control module and the flexible connector, the staff can place the detection module in the sewer pipe at the wellhead of the inspection well, stabilize the position of the detection module, reduce the labor intensity of the staff, and facilitate the staff to install and maintain the flow monitoring device;

[0027] 2. With the cooperation of the first mounting shell, the second mounting shell and the flexible sealing ring, when the volume of the sealed cavity changes, the first mounting shell and the second mounting shell are always kept sealed, so as to protect the electrical components of the control mechanism and the detection module located inside the sealed cavity and reduce the contact between them and the sewage;

[0028] 3. A second liquid level gauge is added to the support module. When the liquid in the sewer pipe fluctuates greatly, the liquid level information measured by the second liquid level gauge is used to correct the liquid level measured by the first liquid level gauge to increase the stability of the detection data of the detection module. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of this embodiment.

[0030] Figure 2 is a cross-sectional view of this embodiment.

[0031] Figure 3 yes Figure 1 Schematic diagram of the structure of part A.

[0032] Explanation of the reference numerals: 1. inspection well; 2. support module; 3. bearing module; 4. detection module; 5. central control module; 6. sewer pipe; 7. support pipe; 8. extension pipe; 9. waterproof joint; 10. connecting pipe; 11. pipe joint; 12. three-way joint; 13. fixing frame; 14. fixing foot; 15. mounting plate; 16. connecting rod; 17. clamp; 18. sealing box; 19. control mechanism; 20. first mounting shell; 21. second mounting shell; 22. flexible sealing ring; 24. sealing chamber; 25. driving motor; 26. driving screw; 27. threaded sleeve; 28. flexible connector; 29. ​​wire; 30. ultrasonic flowmeter; 31. first liquid level meter; 32. generator; 33. receiver; 34. second liquid level meter. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-3 This application is described in further detail.

[0034] The present application embodiment discloses a municipal pipe network flow monitoring device. Figure 1 and Figure 2 A municipal pipe network flow monitoring device includes a support module 2, a bearing module 3, a detection module 4, and a central control module 5 arranged in an inspection well 1. The support module 2 extends in a vertical direction, the central control module 5 is arranged at the top of the support module 2, the bearing module 3 is connected to a side of the support module 2 close to the bottom, and the detection module 4 is installed on the bearing module 3.

[0035] The top of the inspection well 1 is in a constricted shape, and the inner wall of the inspection well 1 is connected to a sewer pipe 6 extending in a horizontal direction, and the bottom of the inspection well 1 is lower than the bottom of the sewer pipe 6. The support module 2 includes a support pipe 7, an extension pipe 8 connected to the side wall of the support pipe 7, and a waterproof joint 9 arranged at the end of the extension pipe 8 away from the support pipe 7, wherein the support pipe 7 extends from the wellhead of the inspection well 1 to the bottom of the inspection well 1, the support pipe 7 includes a plurality of connecting pipes 10, and a pipe joint 11 connected between every two adjacent connecting pipes 10. The two adjacent connecting pipes 10 are sealedly connected by the pipe joint 11, and the two connecting pipes 10 and the extension pipe 8 near the interface between the inspection well 1 and the sewer pipe 6 are sealedly connected by a three-way joint 12. By setting the support pipe 7 and the extension pipe 8 separately, it is convenient to transport the support module 2 as a whole.

[0036] In order to reduce the impact of sewage flow on the support pipe 7, the support pipe 7 is arranged in the horizontal direction on one side of the interface between the inspection well 1 and the sewer pipe 6, so as to reduce the direct impact of sewage flow on the support pipe 7, reduce the bending and deformation of the support pipe 7, and increase the service life of the support pipe 7. The extension pipe 8 extends from one side of the sewer pipe 6 to the interface between the inspection well 1 and the sewer pipe 6 and extends toward the inside of the sewer pipe 6.

[0037] In order to make the position and state of the support pipe 7 in the inspection well 1 more stable, the support module 2 also includes a fixing frame 13 fixedly connected between the well wall and the support pipe 7, and a fixed support leg 14 arranged at the bottom end of the support pipe 7, wherein the fixing frame 13 includes a mounting plate 15 fixedly connected to the well wall of the inspection well 1, a connecting rod 16 fixedly connected to the mounting plate 15 and extending toward the center of the inspection well 1, and a clamp 17 arranged at the end of the connecting rod 16 away from the mounting plate 15, the clamp 17 clamps the part of the support pipe 7 close to the central control module 5 to support the upper half of the support module 2; the fixed support leg 14 is made of stainless steel metal, and its bottom end is conical. When the support module 2 extends into the bottom of the inspection well, it is convenient to insert the support module 2 into the sludge at the bottom of the inspection well 1 through the fixed support leg 14, thereby limiting the position of the bottom of the support module 2, thereby increasing the overall stability of the support module 2.

[0038] Reference Figure 1 and Figure 3 The carrying module 3 includes a sealing box 18 and a control mechanism 19 arranged in the sealing box 18 for controlling the overall volume change of the carrying module 3 and the detection module 4, wherein the sealing box 18 includes a first mounting shell 20, a second mounting shell 21, and a flexible sealing ring 22, wherein the first mounting shell 20 is slidably inserted in the second mounting shell 21, one end of the flexible sealing ring 22 is fixedly connected to the outer wall of the first mounting shell 20, and the other end of the flexible sealing ring 22 is fixedly connected to the outer wall of the second mounting shell 21 to seal the gap between the first mounting shell 20 and the second mounting shell 21, the first mounting shell 20, the second mounting shell 21 and the flexible sealing ring 22 cooperate to form a sealing cavity 24, in order to increase the waterproof ability of the sealing box 18, the electrical components located inside the first mounting shell 20 are coated with a waterproof layer (not shown in the figure), and in order to increase the pressure resistance of the sealing box 18, the inner wall of the first mounting shell 20 and the inner wall of the second mounting shell 21 are both provided with a plurality of reinforcing ribs (not shown in the figure).

[0039] The control mechanism 19 includes a driving motor 25 fixedly connected to the inner wall of the first mounting shell 20, a driving screw 26 fixedly connected to the driving motor 25, and a threaded sleeve 27 fixedly connected to the inner wall of the second mounting shell 21, wherein the driving screw 26 is threadedly connected to the inner wall of the threaded sleeve 27, and the axes of the driving screw 26 and the threaded sleeve 27 both extend along the relative sliding direction between the first mounting shell 20 and the second mounting shell 21.

[0040] When the driving motor 25 drives the driving screw 26 to rotate, with the cooperation of the driving screw 26 and the threaded sleeve 27, the first mounting shell 20 and the second mounting shell 21 are made to move relative to or away from each other, thereby reducing or enlarging the volume of the sealing box 18. When the overall volume of the supporting module 3 and the detection module 4 reaches the minimum, the overall density of the supporting module 3 and the detection module 4 reaches 1.25 times the density of the sewage. At this time, the buoyancy of the sewage on the supporting module 3 and the detection module 4 is minimal, so that the supporting module 3 and the detection module 4 can sink to the bottom of the sewage more stably. When the overall volume of the supporting module 3 and the detection module 4 reaches the maximum, the overall density of the supporting module 3 and the detection module 4 reaches 0.75 times the density of the sewage. At this time, the sewage makes the supporting module 3 and the detection module 4 float, so that the staff can recover them.

[0041] In order to enable the bearing module 3 to move freely in the water, a flexible connector 28 is provided between the hollow module and the bearing module 3. The flexible connector 28 includes a wire 29 fixedly connected to the sealing box 18. The end of the wire 29 away from the sealing box 18 passes through the extension tube 8 and the support tube 7 and is connected to the central control module 5. The drive motor 25 and the detection module 4 are both connected to the central control module 5 through the wire 29. In order to increase the tensile strength of the wire 29, a steel wire (not shown in the figure) is added inside the wire 29 connected between the sealing box 18 and the central control module 5. When the central control module 5, the bearing module 3 and the detection module 4 are installed, the wire 29 is extended out of the extension tube 8 by a certain length in advance, so that the bearing module 3 can carry the detection module 4 and move freely in the sewage, and the position between the wire 29 and the extension tube 8 is fixed by the waterproof joint 9, and the gap between the wire 29 and the extension tube 8 is sealed by the waterproof joint 9.

[0042] The central control module 5 includes a controller (not shown in the figure) for collecting information from the detection module 4 and controlling the detection module 4, and a LoRa information transmission terminal (not shown in the figure) for sending and receiving the collected information. The information collected by the detection module 4 can be read through the cooperation between the controller and the LoRa information transmission terminal.

[0043] Reference Figure 1 and Figure 2The detection module 4 includes an ultrasonic flow meter 30 and a first liquid level meter 31 fixedly mounted on the bottom of the first mounting shell 20, wherein the ultrasonic flow meter 30 includes a generator 32 and a receiver 33, and the generator 32 and the receiver 33 are inclined in the sewage flow direction, so that the ultrasonic flow meter 30 can accurately measure the flow velocity of the sewage, and then measure the liquid level of the sewage by the first liquid level meter 31, and if the detected sewage level is lower than the cross-sectional height of the sewer pipe 6, the sewage flow area can be easily obtained by adding the pipe cross-sectional shape and the sewage level height, and if the detected sewage level is higher than the cross-sectional height of the sewer pipe 6, the cross-sectional area of ​​the sewer pipe 6 is used as the sewage flow area, and the flow of the sewer pipe 6 is calculated in cooperation with the ultrasonic flow meter 30.

[0044] In order to calibrate the information collected by the first liquid level meter 31, a second liquid level meter 34 is provided at the bottom of the support module 2. When the liquid in the sewer pipe 6 fluctuates greatly, the liquid level information measured by the second liquid level meter 34 is used to correct the liquid level measured by the first liquid level meter 31.

[0045] The implementation principle of a municipal pipe network flow monitoring device in the embodiment of the present application is:

[0046] When installing the monitoring device, extend the support pipe 7 from the wellhead into the inspection well 1, and insert the fixed support leg 14 into the mud at the bottom of the inspection well 1, and then fix the middle and upper part of the support pipe 7 through the fixing frame 13 to stabilize the state of the support pipe 7. At this time, the interface between the inspection well 1 and the sewer pipe 6 corresponds to the connection between the support module 2 and the bearing module 3. In the initial state, the driving motor 25 is operated by the central control module 5 to reduce the overall volume of the sealing box 18, so that the buoyancy of the sewage on the bearing module 3 and the detection module 4 as a whole is increased, so that the sealing box 18 drives the detection module 4 to float in the sewage as a whole. Under the action of the sewage, the sealing box 18 connected to the support module 2 through the wire 29 is flushed into the sewer pipe 6 by the water flow. At this time, the driving motor 25 is operated by the central control module 5. The driving motor 25 drives the overall volume of the bearing module 3 and the detection module 4 to be reduced, thereby reducing the overall density of the bearing module 3 and the detection module 4. When the overall density of the bearing module 3 and the detection module 4 is less than the density of the sewage, the sealing box 18 carries the detection module 4 to sink to the bottom of the water to stabilize the position and state of the detection module 4 in the water. The detection module 4 can accurately detect the flow in the sewer pipe 6, and transmit the information collected by the detection module 4 to the central control module 5. The hollow module then sends the flow to the nearest gateway through the LoRa information transmission terminal, so that the staff can observe the data of the detection module 4. There is no need for the staff to enter the bottom of the inspection well 1 for installation, and it is convenient for the staff to maintain the monitoring device later, thereby ensuring the safety of the staff during operation.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A municipal pipe network flow monitoring device, characterized in that: The invention comprises a support module (2) extending from the wellhead of the inspection well (1) to the bottom of the inspection well (1), a bearing module (3) connected to the support module (2) at a vertical height corresponding to the interface portion of the sewer pipe (6), a detection module (4) installed on the bearing module (3) for detecting flow, a central control module (5) installed on the top of the support module (2) for receiving information collected by the detection module (4), and a flexible connecting member (28) connected between the support module (2) and the bearing module (3), wherein the bearing module (3) comprises a sealing box (18), and a control mechanism (19) arranged in the sealing box (18) for controlling the overall volume change of the bearing module (3) and the detection module (4), and the control mechanism (19) is connected to the central control module (5); The sealing box (18) comprises a first mounting shell (20), a second mounting shell (21) connected to the first mounting shell (20), and a flexible sealing ring (22) connected between the first mounting shell (20) and the second mounting shell (21); a control mechanism (19) is arranged between the first mounting shell (20) and the second mounting shell (21) to drive the first mounting shell (20) and the second mounting shell (21) to move closer to each other or farther away from each other; the first mounting shell (20), the second mounting shell (21) and the flexible sealing ring (22) cooperate to form a sealing chamber (24); The detection module (4) comprises an ultrasonic flow meter (30) and a first liquid level meter (31) installed on the carrier module (3); A second liquid level gauge (34) is provided at the bottom end of the support module (2).

2. A municipal pipe network flow monitoring device according to claim 1, characterized in that: The support module (2) comprises a support tube (7), an extension tube (8) connected to the side wall of the support tube (7), and a waterproof joint (9) arranged at one end of the extension tube (8) away from the support tube (7); the support tube (7) comprises a plurality of connecting tubes (10) connected in sequence.

3. A municipal pipe network flow monitoring device according to claim 2, characterized in that: The support module (2) also includes a fixing frame (13) fixedly connected between the well wall and the support pipe (7).

4. A municipal pipe network flow monitoring device according to claim 2, characterized in that: The bottom end of the support tube (7) is fixedly connected to a fixed support foot (14), and the bottom end of the fixed support foot (14) is conical.

5. A municipal pipe network flow monitoring device according to claim 1, characterized in that: The overall density variation range of the bearing module (3) and the detection module (4) is 0.75-1.25 times the density of the sewage.

6. A municipal pipe network flow monitoring device according to claim 2, characterized in that: The support pipe (7) is arranged on one side of the interface between the inspection well (1) and the sewer pipe (6), and the extension pipe (8) extends to the interface between the inspection well (1) and the sewer pipe (6).

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