A flow monitoring device for drainage pipelines in municipal greening
By designing a flow monitoring device that combines deformation strips and strain gauges in urban pipelines, the problem of inaccurate monitoring of existing devices in urban pipelines is solved, and accurate monitoring of the flow rate of water flow in urban pipelines is achieved.
Patent Information
- Application Number
- CN202210660232.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-06-13
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2042-06-13
AI Technical Summary
The existing flow monitoring devices are difficult to adapt to the detection environment of urban pipelines. The water volume in urban pipelines is often not fully loaded, and the existing devices are not suitable for effective monitoring.
A municipal greening drainage pipeline flow monitoring device is designed, using a fluid pressure detection part composed of deformation strips and strain gauges. Combined with the fluid depth detection part, the water flow depth is detected through the distance measuring sensor, and the flow rate detection data is corrected to achieve accurate monitoring of the water flow rate in urban pipelines.
The device can accurately monitor the water flow rate in urban pipelines, adapt to the detection environment of urban pipelines, and overcome the problem of inaccurate monitoring of existing devices in urban pipelines.
Smart Images
Figure CN115077636B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of municipal drainage monitoring, and more specifically, to a drainage pipeline flow monitoring device for municipal greening. Background Art
[0002] With the gradual development of the urban pipeline system, in the municipal construction plan, in some areas, such as rivers, reservoirs, etc., it is necessary to monitor the flow of specific drainage pipelines, so as to assist in the precise control of the urban pipeline system.
[0003] Existing flow monitoring devices, such as flow meters, etc., mostly detect full water in small pipelines, which is not suitable for the detection environment of urban pipelines. The water volume in urban pipelines is not full at most times. Therefore, there is an urgent need for a drainage pipeline flow monitoring device for municipal greening. Summary of the Invention
[0004] In order to solve the above technical problems, this application provides a drainage pipeline flow monitoring device for municipal greening.
[0005] A drainage pipeline flow monitoring device for municipal greening provided by this application adopts the following technical solutions:
[0006] A drainage pipeline flow monitoring device for municipal greening includes a mounting part installed on the top of the pipeline to be detected. A fluid pressure detection part and a fluid depth detection part are connected to the part of the mounting part located inside the pipeline; the fluid pressure detection part includes a deformation strip connected to the bottom of the mounting part and a strain gauge arranged inside the deformation strip; the upper end of the deformation strip is connected to the mounting part, the lower end extends to the bottom of the pipeline to be detected, and the deformation strip is made of waterproof material.
[0007] Through the above technical solution, when water flows through the pipeline, the bending degree of the deformation strip changes with the different flow velocities of the water flow, so that the bending degree of the strain gauge inside it changes, thereby changing the resistance value of the strain gauge. Therefore, by detecting the change in the resistance value of the strain gauge, the monitoring of the water flow velocity in the pipeline can be realized. And the fluid depth data in the pipeline affects the bending degree of the deformation strip. Combining with the fluid depth detection part, by detecting the water flow depth in the pipeline, the detection and correction of the water flow velocity can be carried out, so as to accurately monitor the water flow velocity in the pipeline.
[0008] Further, the mounting part includes a mounting plate that fits with the inner top surface of the pipeline to be detected and a plug post arranged on the mounting plate. The plug post penetrates through the pipeline to be detected; a sealing clamping ring is formed on the outer wall of the plug post, and the sealing clamping ring is used for embedding with the hole wall of the pipeline to be detected; an expansion hole is opened on the upper end face of the plug post, an expansion tube is threadedly connected in the expansion hole, an abutting ring for abutting against the lower end of the expansion tube is formed in the expansion hole, and an inner sliding ring is fixed to the lower end of the expansion tube.
[0009] Through the above technical solution, when installing the flow monitoring device, the installer places the mounting plate inside the pipeline, inserts the plugging column through the top of the pipeline, and then the installer screws in the expansion tube so that the inner sliding ring at the lower end of the expansion tube abuts against the abutting ring, thereby clamping the sealing clamping ring on the plugging column with the pipeline, and thus realizing the installation with the pipeline through the installation part.
[0010] Further, the fluid depth detection part includes a sliding rod vertically arranged inside the pipeline to be detected, a floating member sleeved on the sliding rod, and a distance measuring sensor installed inside the expansion tube. A detection hole communicating with the expansion hole is opened on the bottom surface of the mounting plate, and a transparent sheet is fixed in the detection hole. The distance measuring sensor is used to detect the height of the floating member.
[0011] Through the above technical solution, when water flows through the pipeline, the floating member floats on the water flow, and the distance measuring sensor inside the expansion tube detects the height of the floating member through the detection hole and the transparent sheet, so as to detect the water flow depth in the pipeline and facilitate correcting the water flow velocity detection data.
[0012] Further, the sliding rod and the floating member are arranged on the side of the deformation strip facing away from the water flow.
[0013] Through the above technical solution, the floating member is located on the back of the deformation strip, which is beneficial to reducing the influence of the water flow velocity on the detection accuracy of the water flow depth.
[0014] Further, there are three groups of the plugging columns in total, and the three groups of plugging columns are evenly distributed around the sliding rod, and each group of plugging columns is provided with the distance measuring sensor.
[0015] Through the above technical solution, through the detection of the three distance measuring sensors, it is beneficial to prevent the floating member from fluctuating and tilting with the water flow, which affects the detection accuracy of the water flow depth data.
[0016] Further, the floating member is hollow inside, and the two ends of the floating member are floating circular ends with different diameters; a triangular sliding hole for passing through the sliding rod is opened at the center of the floating circular end with a larger diameter of the floating member.
[0017] Through the above technical solution, the shape setting of the floating member is beneficial to overcoming the problem that the floating member tilts due to the eddy current sinking generated on the back of the deformation strip when the water flow passes through the deformation strip.
[0018] Further, it further includes a wireless transmission module fixedly installed between the three plugging columns. The wireless transmission module is electrically connected to the distance measuring sensor and the strain gauge respectively, and is used to receive the electrical signal and send it to the municipal pipeline control center.
[0019] Through the above technical solution, the flow velocity signal at the pipeline is transmitted to the municipal pipeline control center through the wireless transmission module for centralized processing and monitoring.
[0020] Further, three wire conduits are fixedly arranged around the wireless transmission module, and the three wire conduits are respectively inserted into the side walls of the three plug columns. The wire conduits are used for threading the wires between the wireless transmission module and the distance measuring sensor.
[0021] Through the above technical solution, the installation of the wireless transmission module is facilitated, the stability of the three plug columns is beneficial, and thus the accuracy of data monitoring is beneficial.
[0022] In summary, the present application includes at least the following beneficial technical effects:
[0023] (1) When water flows through the pipeline, the bending degree of the deformation strip changes with the different flow velocities of the water flow, so that the bending degree of the strain gauge therein changes, and thus the resistance value of the strain gauge changes. Therefore, the monitoring of the water flow velocity in the pipeline can be realized by detecting according to the change of the resistance value of the strain gauge. The fluid depth data in the pipeline affects the bending degree of the deformation strip. Combining with the fluid depth detection part, by detecting the water flow depth in the pipeline, the detection and correction of the water flow velocity can be carried out, so as to accurately monitor the water flow velocity in the pipeline;
[0024] (2) When water flows through the pipeline, the floating member floats on the water flow, and the distance measuring sensor in the expansion pipe detects the height of the floating member through the detection hole and the transparent sheet, so as to detect the water flow depth in the pipeline, which is convenient for correcting the water flow velocity detection data;
[0025] (3) The shape setting of the floating member is beneficial to overcoming the problem of the inclination of the floating member caused by the eddy current sinking generated on the back surface of the deformation strip when the water flow passes through the deformation strip. Description of the Drawings
[0026] Figure 1 It is a schematic diagram of the installation position of the drainage pipeline flow monitoring device for municipal greening;
[0027] Figure 2 It is a schematic diagram of the structure of the installation part;
[0028] Figure 3 It is a schematic diagram of the structure of the drainage pipeline flow monitoring device for municipal greening;
[0029] Figure 4 It is a schematic diagram of the internal structure of the plug column;
[0030] Figure 5 It is a schematic diagram of the position of the detection hole.
[0031] Explanation of the reference numerals in the drawings:
[0032] 1. Installation part; 11. Installation plate; 111. Detection hole; 112. Transparent sheet; 12. Plug-in column; 121. Sealing clamping ring; 122. Expansion hole; 123. Expansion tube; 124. Abuttment ring; 125. Inner sliding ring; 2. Fluid pressure detection part; 21. Deformation strip; 22. Strain gauge; 3. Fluid depth detection part; 31. Sliding rod; 32. Floating part; 321. Floating round end; 322. Triangular sliding hole; 33. Distance measuring sensor; 4. Wireless transmission module; 41. Conduit tube. Detailed implementation manners
[0033] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application; obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0034] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0035] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "provided with", "sleeved / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.
[0036] The following will be further described in detail with reference to the attached Figures 1-5 This application will be further described in detail.
[0037] The embodiment of the present application discloses a drainage pipeline flow monitoring device for municipal greening. Please refer to Figure 1 , which includes an installation part 1 installed on the top of the pipeline to be detected. The part of the installation part 1 located inside the pipeline is connected with a fluid pressure detection part 2 and a fluid depth detection part 3.
[0038] Refer to Figure 2 , Figure 3, the installation part 1 includes a mounting plate 11 that fits against the inner top surface of the pipeline to be detected and a plug post 12 arranged on the mounting plate 11. The plug post 12 penetrates through the pipeline to be detected. In combination with Figure 4 As shown, a sealing clamping ring 121 is formed on the outer wall of the plug post 12, and the sealing clamping ring 121 is used for embedding with the hole wall of the pipeline to be detected. An expansion hole 122 is opened on the upper end face of the plug post 12, and an expansion tube 123 is connected to the expansion hole 122 by thread. An abutting ring 124 for abutting against the lower end of the expansion tube 123 is formed in the expansion hole 122, and an inner sliding ring 125 is fixed to the lower end of the expansion tube 123. When installing this flow monitoring device, the installer places the mounting plate 11 inside the pipeline, passes the plug post 12 through the top of the pipeline, and then the installer screws in the expansion tube 123 so that the inner sliding ring 125 at the lower end of the expansion tube 123 tightly abuts against the abutting ring 124, thereby making the sealing clamping ring 121 on the plug post 12 tightly clamped with the pipeline, and thus realizing the installation with the pipeline through the installation part 1.
[0039] Refer to Figure 3 , the fluid pressure detection part 2 includes a deformation strip 21 connected to the side of the mounting plate 11 and a strain gauge 22 arranged inside the deformation strip 21. In combination with Figure 2 As shown, the upper end of the deformation strip 21 is connected to the mounting plate 11, and the lower end extends to the bottom of the pipeline to be detected. The deformation strip 21 is made of PU material.
[0040] Refer to Figure 3 , the fluid depth detection part 3 includes a sliding rod 31 vertically arranged inside the pipeline to be detected, a floating member 32 sleeved on the sliding rod 31, and a ranging sensor 33 installed in the expansion tube 123. In combination with Figure 5 As shown, a detection hole 111 communicating with the expansion hole 122 is opened on the bottom surface of the mounting plate 11, and a transparent sheet 112 made of glass is fixed in the detection hole 111. The ranging sensor 33 is used to detect the height of the floating member 32. The sliding rod 31 and the floating member 32 are arranged on the side of the deformation strip 21 facing away from the water flow. There are three groups of plug posts 12 in total, and the three groups of plug posts 12 are evenly distributed around the sliding rod 31, and a ranging sensor 33 is arranged on each group of plug posts 12. In combination with Figure 3As shown, the floating member 32 is hollow inside, and both ends of the floating member 32 have floating round ends 321 with different diameters. A triangular sliding hole 322 for passing through the sliding rod 31 is provided at the center of the floating round end 321 with a larger diameter of the floating member 32. When water flows through the pipeline, the floating member 32 floats on the water flow, and the distance measuring sensor 33 in the expansion tube 123 detects the height of the floating member 32 through the detection hole 111 and the transparent sheet 112, so as to detect the water flow depth in the pipeline, which is convenient for correcting the water flow velocity detection data. Moreover, the floating member 32 is located on the back of the deformation strip 21, which is beneficial to reducing the influence of the water flow velocity on the detection accuracy of the water flow depth. In addition, the shape setting of the floating member 32 is beneficial to overcoming the problem that the floating member 32 tilts due to the eddy current sinking generated on the back of the deformation strip 21 when the water flow passes through the deformation strip 21.
[0041] Referring to Figure 3 , the wireless transmission module 4 fixedly installed between the three plug-in columns 12 is included in the drainage pipeline flow monitoring device for municipal greening. The wireless transmission module 4 is electrically connected to the distance measuring sensor 33 and the strain gauge 22 respectively, and is used to receive the electrical signal and send it to the municipal pipeline control center. Three wire conduits 41 are fixedly arranged around the wireless transmission module 4, and the three wire conduits 41 are respectively inserted into the side walls of the three plug-in columns 12. The wire conduits 41 are used for passing the wires between the wireless transmission module 4 and the distance measuring sensor 33.
[0042] The implementation principle of a drainage pipeline flow monitoring device for municipal greening in an embodiment of the present application is as follows:
[0043] Before installing the flow monitoring device, data curve drawing can be performed on it. First, install the flow monitoring device in the test pipeline, conduct a water passing test on the test pipeline, and gradually increase the water supply in the pipeline, so as to obtain the test curves of the water pressure and water depth of the pipeline, compare and record the electrical signal data of the monitoring device during this process, and thus form a test database.
[0044] When water flows through the pipeline, the bending degree of the deformation strip 21 changes with the different water flow velocities, so that the bending degree of the strain gauge 22 inside it changes, and thus the resistance value of the strain gauge 22 changes. Therefore, according to the change of the resistance value of the strain gauge 22, combined with the electrical signal data of the fluid depth detection part 3, and compared with the data in the test database, the water flow velocity in the pipeline can be accurately monitored.
[0045] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.
Claims
1. A flow monitoring device for drainage pipes in municipal greening, characterized in that: It includes an installation part (1) installed on the top of the pipeline to be detected. The part of the installation part (1) located inside the pipeline is connected with a fluid pressure detection part (2) and a fluid depth detection part (3); the fluid pressure detection part (2) includes a deformation strip (21) connected to the bottom of the installation part (1) and a strain gauge (22) arranged inside the deformation strip (21); the upper end of the deformation strip (21) is connected to the installation part (1), the lower end extends to the bottom of the pipeline to be detected, and the deformation strip (21) is made of waterproof material; The installation part (1) includes an installation plate (11) fittingly arranged with the inner top surface of the pipeline to be detected and a plug post (12) arranged on the installation plate (11). The plug post (12) penetrates through the pipeline to be detected; a sealing clamping ring (121) is formed on the outer wall of the plug post (12), and the sealing clamping ring (121) is used for being embedded with the hole wall of the pipeline to be detected; an expansion hole (122) is opened on the upper end face of the plug post (12), an expansion tube (123) is threadedly connected in the expansion hole (122), an abutting ring (124) for abutting against the lower end of the expansion tube (123) is formed in the expansion hole (122), and an inner sliding ring (125) is fixed at the lower end of the expansion tube (123); The fluid depth detection part (3) includes a sliding rod (31) vertically arranged inside the pipeline to be detected, a floating part (32) sleeved on the sliding rod (31), and a distance measuring sensor (33) installed in the expansion tube (123). A detection hole (111) communicated with the expansion hole (122) is opened on the bottom surface of the installation plate (11), and a transparent sheet (112) is fixed in the detection hole (111). The distance measuring sensor (33) is used for detecting the height of the floating part (32); the sliding rod (31) and the floating part (32) are arranged on the side of the deformation strip (21) facing away from the water flow.
2. The flow monitoring device for drainage pipelines in municipal greening according to claim 1, wherein: There are three groups of the plug posts (12) in total, and the three groups of plug posts (12) are evenly distributed around the sliding rod (31), and the distance measuring sensor (33) is arranged on each group of plug posts (12).
3. The flow monitoring device for drainage pipelines in municipal greening according to claim 2, wherein: The floating part (32) is hollow inside, and the two ends of the floating part (32) are respectively floating round ends (321) with different diameters; a triangular sliding hole (322) for passing through the sliding rod (31) is opened at the center of the floating round end (321) with a larger diameter of the floating part (32).
4. The flow monitoring device for drainage pipelines in municipal greening according to claim 2, wherein: It further includes a wireless transmission module (4) fixedly installed between the three plug posts (12). The wireless transmission module (4) is electrically connected to the distance measuring sensor (33) and the strain gauge (22) respectively, and is used for receiving the electrical signal and sending it to the municipal pipeline control center.
5. The flow monitoring device for drainage pipes in municipal greening according to claim 4, characterized in that: Three wire conduits (41) are fixedly arranged around the wireless transmission module (4). The three wire conduits (41) are respectively inserted into the side walls of the three plug posts (12), and the wire conduits (41) are used for passing through the wires between the wireless transmission module (4) and the distance measuring sensor (33).
Citation Information
Patent Citations
Non-full pipe flowmeter and installation and use method thereof
CN112729420A