Sewage pipe network flow real-time monitoring equipment

Abstract

The invention relates to sewage pipe network flow real-time monitoring equipment which comprises a detection pipe, a flow meter and a flow stabilizing cylinder, and the free end of the flow stabilizing cylinder points to a probe of the flow meter. A plurality of stable flow plates are arranged on the outer circumferential wall of the cambered surface of the flow stabilizing cylinder, a plurality of flow cutting plates are fixedly connected to the inner circumferential wall of the cambered surface of the flow stabilizing cylinder, one ends of the stable flow plates are hinged to the flow stabilizing cylinder, the other ends of the stable flow plates extend to be spaced from a probe of the flowmeter, and the stable flow plates are arranged in the length direction of the flow stabilizing cylinder and are longer than the flow stabilizing cylinder. The flow stabilizing cylinder is provided with a follow-up adjusting mechanism for increasing the included angle between the flow stabilizing sheet and the flow stabilizing cylinder when the flow speed of sewage in the detection pipe is increased. The flow velocity stability of the middle-area sewage flow output from the free end of the flow stabilizing cylinder can be improved, and the stabilized edge-area sewage flow forms a flow protection layer surrounding the periphery of the middle-area sewage flow, so that the influence of turbulent flow and vortex generated after scaling of the inner wall of a pipeline on the flow velocity of the middle-area sewage flow can be effectively reduced, and the service life of the middle-area sewage flow is prolonged. And the detection precision of the flowmeter is improved.

Description

Technical Field

[0001] The present application relates to the technical field of flow monitoring, and in particular to a real-time monitoring device for flow in a sewage pipe network. Background Art

[0002] Flow monitoring is to calculate whether the pollution load of water bodies exceeds the environmental capacity and evaluate the control effect, to grasp the total amount of pollutants discharged by pollution sources and the amount of water discharged, etc., and the flow monitoring of the corresponding water bodies is required. When evaluating the impact of drainage on environmental pollution based on the total amount of sewage discharged, the material balance and water balance of the enterprise can be combined to conduct a comprehensive analysis of the process and sewage discharge, and the drawbacks of individual enterprises using a large amount of fresh water to dilute sewage can be avoided, which is more conducive to water conservation. Municipal pipe network sewage flow monitoring devices are usually used to monitor and measure the flow in urban sewage pipes to ensure normal operation.

[0003] A Chinese patent with application number CN202111340750.X in the related technology proposes a sewage flow monitoring device that can be monitored in real time, including a mounting base, a monitoring box and a functional box. The invention is provided with an adjustment component, which includes a motor box, which is fixedly connected to the lower end of the functional box. A drive motor is fixedly installed inside the motor box. The output end of the drive motor passes through the lower end wall of the functional box and is fixedly connected with a threaded rod. The threaded rod is rotatably connected to the upper end of the mounting base at the end away from the drive motor. A threaded sleeve is provided on the outer threaded sleeve of the threaded rod, one end of the threaded sleeve is fixedly connected to the outer wall of one side of the monitoring box, and the threaded sleeve is slidably connected to the guide rod at the end away from the monitoring box. The upper end face of the guide rod is fixedly connected to the lower end face of the functional box, and the lower end face of the guide rod is fixedly connected to the upper end face of the mounting base, so that the device can adjust the height of the flow meter, which is convenient for real-time monitoring of sewage flow velocities at different horizontal planes, so that the monitoring range of the device is wider.

[0004] The above-mentioned related technologies have the following defects: in the sewage pipe network, due to the long-term scouring of the inner wall of the sewage pipe network by impurities in the circulating sewage, the inner wall of the sewage pipe network is prone to adhesion of debris and scaling. These scales will affect the stability of sewage circulation in the pipe, such as causing fluid turbulence and eddy currents, which will seriously affect the detection accuracy of sewage flow; moreover, when the sewage flow rate is unstable, it is also easy to cause uneven distribution of sewage flow rate. If this uneven flow rate distribution occurs at the flow meter probe, it will also affect the measurement accuracy of the flow meter. Summary of the invention

[0005] In order to improve the problem that dirt generated by the deposition of debris in the sewage pipe network and the uneven distribution of sewage flow rate in the pipe will affect the detection accuracy of the flow meter, the present application provides a real-time monitoring device for the flow of the sewage pipe network.

[0006] The present application provides a sewage pipe network flow real-time monitoring device that adopts the following technical solution: A real-time monitoring device for flow in a sewage pipe network, comprising a detection tube, a flow meter and flanges arranged at both ends of the detection tube, wherein the probe of the flow meter at least extends to the center axis of the detection tube, one end of the detection tube is fixedly connected to a flow stabilizing tube arranged along the length direction thereof, and the free end of the flow stabilizing tube points to the probe of the flow meter; The outer circumferential wall of the cambered surface of the flow stabilizing tube is provided with a plurality of flow stabilizing sheets distributed in a circumferential array with equal spacing about the axis thereof, the inner circumferential wall of the cambered surface of the flow stabilizing tube is fixedly connected with a plurality of flow cutting sheets arranged along its axial direction, one end of the flow stabilizing sheet is hinged to the flow stabilizing tube, and the other end extends to be arranged at intervals with the probe of the flow meter, the flow stabilizing sheet is arranged along the length direction of the flow stabilizing tube and its length is greater than the length of the flow stabilizing tube; The flow stabilizing cylinder is provided with a follow-up adjustment mechanism for increasing the angle between the flow stabilizing sheet and the flow stabilizing cylinder when the sewage flow velocity in the detection tube increases.

[0007] Furthermore, the steady flow sheet comprises: A transverse wing, the cross section of which is an arc-shaped and coaxial with the stabilizer tube; The longitudinal wing is integrally formed on the inner arc side of the transverse wing and extends radially along the flow stabilizer. The width of the longitudinal wing in the radial direction of the flow stabilizer increases smoothly from the end of the flow stabilizer away from the flow meter to the end of the flow stabilizer close to the flow meter. The longitudinal wing is hinged to the end of the flow stabilizer away from the flow meter.

[0008] Furthermore, a drag reducing tip is provided on the side of the longitudinal wing and the transverse wing facing away from the flow meter.

[0009] Furthermore, when the flow stabilizing sheet is turned over to the point where the sides of two adjacent transverse wings are in contact with each other, the inner diameter of the cylindrical shape formed by one end of the plurality of longitudinal wings close to the flow meter is smaller than the inner diameter of the flow stabilizing tube.

[0010] Furthermore, the follow-up adjustment mechanism includes: A resistance bowl is slidably sleeved on the arc-surface outer peripheral wall of the flow stabilizing tube, and a resistance arc surface is arranged on the arc-surface outer wall of the resistance bowl; A reset member is disposed between the free end of the flow stabilizing cylinder and the resistance bowl, and is used to make the resistance bowl have a tendency to move away from the flow meter when the impact force of the water flow on the resistance bowl is weakened; The synchronous structure is arranged between the resistance bowl and the longitudinal wings, and is used to keep the flipping angles of all the longitudinal wings consistent when the resistance bowl slides on the stabilizer tube.

[0011] Furthermore, the same motion structure includes: A positioning groove is provided on the outer wall of the arc surface of the resistance bowl, and a plurality of positioning grooves are provided corresponding to the plurality of longitudinal wings one by one; The longitudinal wings are magnetically adsorbed in the corresponding positioning grooves.

[0012] Furthermore, the resistance bowl is provided with an anti-slip groove at the bottom wall of the positioning groove, which is connected with the positioning groove and has a groove width greater than the positioning groove width, and the longitudinal wing is provided with an anti-slip head that is plugged and adapted to the anti-slip groove at a position corresponding to the stabilizer tube; The thickness of the anti-slipping head is smaller than the depth of the anti-slipping groove.

[0013] Furthermore, the same motion structure includes: A connecting rod has one end hinged on the resistance bowl and the other end hinged on the longitudinal wing, and the connecting rod is located between the resistance bowl and the flow meter.

[0014] Furthermore, the reset member is configured as a reset spring sleeved on the outer peripheral wall of the flow stabilizer.

[0015] Furthermore, the reset element is configured as two first permanent magnets that are respectively located on the free end of the stabilizing tube and the resistance bowl and that repel each other by magnetic force.

[0016] In summary, the beneficial technical effects of this application are: 1. After the sewage in the sewage network flows into the detection tube, a part of the sewage passes through the hollow part of the flow stabilizing tube and is diverted and guided by a plurality of flow cutting pieces, which can effectively break the abnormal flow such as turbulence and eddy current of the circulating sewage, and improve the flow velocity stability of the sewage flow in the middle area output from the free end of the flow stabilizing tube; the other part of the sewage passes through the outer wall of the flow stabilizing tube and is also regulated by a plurality of flow stabilizing pieces, which can improve the flow velocity stability of the sewage flow in the side area surrounding the periphery of the sewage flow in the middle area, forming a flow protection layer surrounding the periphery of the sewage flow in the middle area, which can effectively reduce the influence of turbulence and eddy current caused by scaling of the inner wall of the pipe on the flow velocity of the sewage flow in the middle area output from the flow stabilizing tube, and improve the detection accuracy of the flow meter; 2. The flow meter probe is set below the centerline of the detection tube, and the flow stabilizing tube is eccentrically set at the lower part of the detection tube. The detection area of ​​the flow meter probe is aligned with the extension area of ​​the flow stabilizing tube. This can fully cope with the actual situation where the probability of scaling in the lower half of the sewage pipe network is high, and ensure the detection stability of the flow meter; 3. The setting of multiple transverse wings can suppress the flow trend of turbulence and eddy current in the border area sewage in the radial direction of the flow stabilizing tube, and the setting of multiple longitudinal wings can suppress the flow trend of turbulence and eddy current in the border area sewage in the circumferential direction of the flow stabilizing tube, which can effectively suppress the turbulence and eddy current in the detection tube and stabilize the flow; at the same time, the end of the longitudinal wing close to the flow meter is located between two adjacent flow cutting pieces on the inner wall of the flow stabilizing tube, which can further perform staggered flow stabilization on the sewage in the middle area at the output end of the flow stabilizing tube, further improving the flow stabilization effect; 4. The lower the sewage flow rate in the detection tube, the greater the degree to which the end of the longitudinal wing close to the flow meter penetrates into the sewage flow in the middle area. On the one hand, the total flow stabilization treatment stroke of the cutting plate and the longitudinal wing is longer. On the other hand, the performance of the longitudinal wing moving axially with the change of water flow velocity can improve the flow stabilization effect to a certain extent. Therefore, this setting of the longitudinal wing can improve the problem of poor overall sewage stabilization effect in the middle area due to the weakening of the flow stabilization effect of multiple cutting plates on the inner wall of the flow stabilization tube when the sewage flow rate or water level in the detection tube is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 is an end view of the overall structure of an embodiment of the present application; Figure 3 is a partial cross-sectional structural schematic diagram of an embodiment of the present application when the synchronous structure is set as a positioning groove; Figure 4 is a schematic diagram of the overall structure of the flow stabilizing sheet of an embodiment of the present application; Figure 5 is a structural schematic diagram of an embodiment of the present application when the synchronous structure is set as a connecting rod; Figure 6 It is a schematic diagram of a partial cross-sectional structure when the synchronous structure of the embodiment of the present application is set as a connecting rod.

[0018] Description of reference numerals: 1. Detection tube; 11. Flange; 2. Flow meter; 21. Probe; 3. Flow stabilizing tube; 31. Flow cutting piece; 4. Smooth flow blade; 41. Transverse wing; 42. Longitudinal wing; 43. Drag reduction tip; 5. Resistance bowl; 61. return spring; 62. first permanent magnet; 71. Positioning groove; 72. Connecting rod. DETAILED DESCRIPTION

[0019] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0020] The present application embodiment discloses a real-time monitoring device for sewage pipe network flow. Figure 1 , Figure 2 and Figure 3 , which includes a detection tube 1, a flow meter 2 and flanges 11 arranged at both ends of the detection tube 1, and the flanges 11 are used to connect to the sewage pipe network; the probe 21 of the flow meter 2 at least extends to the central axis of the detection tube 1, and can be specifically set according to the annual water flow of the corresponding sewage pipe network. If the annual water flow in the sewage pipe network covers more than half of the pipe diameter, the probe 21 of the flow meter 2 can be extended to the central axis of the detection tube 1; if the annual water flow in the sewage pipe network is less and can cover the central axis of the detection tube 1, the probe 21 of the flow meter 2 needs to be extended to cross the central axis of the detection tube 1 and approach the bottom of the pipe, or the flow meter 2 is set below the detection tube 1 when necessary, so that the probe 21 of the flow meter 2 always maintains full contact with the sewage to be tested. In this embodiment, considering that the probability of scaling in the lower half of the sewage pipe network is relatively high, the probe 21 of the flow meter 2 is set below the central axis of the detection tube 1.

[0021] One end of the detection tube 1 is fixedly connected to a flow stabilizer 3 arranged along its length direction, and the free end of the flow stabilizer 3 points to the probe 21 of the flow meter 2. Specifically, the flow stabilizer 3 is eccentrically arranged at a lower position of the detection tube 1, and the detection area of ​​the probe 21 of the flow meter 2 is aligned with the extension area of ​​the flow stabilizer 3.

[0022] The curved outer wall of the flow stabilizing tube 3 is provided with a plurality of flow stabilizing sheets 4 distributed in a circumferential array with equal spacing about its central axis, and the curved inner wall of the flow stabilizing tube 3 is fixedly connected with a plurality of flow cutting sheets 31 arranged along its axial direction and distributed in a circumferential array with equal spacing about its central axis; one end of the flow stabilizing sheet 4 is hinged to the flow stabilizing tube 3, and the other end extends to be spaced apart from the probe 21 of the flow meter 2, and the flow stabilizing sheet 4 is arranged along the length direction of the flow stabilizing tube 3 and its length is greater than the length of the flow stabilizing tube 3.

[0023] In addition, a follow-up adjustment mechanism is provided on the flow stabilizing tube 3 for increasing the angle between the flow stabilizing sheet 4 and the flow stabilizing tube 3 when the flow velocity of the sewage in the detection tube 1 increases.

[0024] In this way, after the monitoring equipment of the present application is installed in the sewage pipe network, the flow stabilizer 3 and the flow meter 2 are arranged in sequence according to the flow direction of the sewage in the sewage pipe network, and the flanges 11 at both ends of the detection tube 1 are connected to the sewage pipe network; after the sewage in the sewage pipe network flows into the detection tube 1, it first needs to pass through the flow stabilizer 3, a part of the sewage passes through the hollow part of the flow stabilizer 3, and is diverted and guided by multiple flow cutting pieces 31, which can effectively break the turbulence, eddy current and other abnormal flows of the circulating sewage, and improve the flow velocity stability of the sewage flow in the middle area output from the free end of the flow stabilizer 3; the other part of the sewage passes through the outer peripheral wall of the flow stabilizer 3 The flow velocity is also adjusted by multiple flow stabilization sheets 4, which can improve the flow velocity stability of the side area sewage flow surrounding the periphery of the central area sewage flow, form a flow protection layer surrounding the periphery of the central area water flow, and effectively reduce the turbulence and eddy current caused by scaling on the inner wall of the pipe. The influence of the flow velocity of the central area sewage flow output by the flow stabilization tube 3 is reduced. Therefore, when the central area sewage flow with a stable flow velocity output by the flow stabilization tube 3 is flushed on the probe 21 of the downstream flow meter 2, the flow meter 2 can accurately detect the flow in the sewage pipe network, and effectively avoid the interference of abnormal flows such as turbulence and eddy currents in the sewage flow on the detection accuracy of the flow meter 2.

[0025] Moreover, when the sewage flow rate in the sewage pipe network changes, the uneven distribution of the sewage flow rate in the detection tube 1 will be further aggravated, and the flow velocity interference of the central sewage flow output by the flow stabilizing tube 3 will increase, causing the detection accuracy of the flow meter 2 to decrease; and since the flow stabilizing sheet 4 is hinged on the flow stabilizing tube 3, and the follow-up adjustment mechanism can increase the angle between the flow stabilizing sheet 4 and the flow stabilizing tube 3 when the sewage flow velocity in the detection tube 1 increases, at this time, the effective radius of multiple flow stabilizing sheets 4 surrounding the outer periphery of the flow stabilizing tube 3 increases, so that the range of the side area sewage surrounding the outer periphery of the central sewage flow is increased and is in the shape of a cone with a small front and a large back along the water flow direction, which can better break up the turbulence and eddy current in the detection tube 1, provide a better rectification effect, and effectively ensure the flow velocity stability of the central sewage output by the flow stabilizing tube 3, thereby ensuring the detection accuracy of the flow meter 2.

[0026] Therefore, by means of the setting of the flow stabilizing tube 3 and the follow-up regulating mechanism, the rectification effect can be adjusted autonomously according to the change of the flow velocity of the sewage in the detection tube 1, which can greatly improve the actual applicability of the monitoring equipment of the present application.

[0027] Specifically, refer to Figure 3 and Figure 4 The above-mentioned steady flow sheet 4 includes: The cross-section of the transverse wing 41 is an arc shape coaxial with the flow stabilizer 3; The longitudinal wing 42 is integrally formed on the inner arc side of the transverse wing 41 and extends radially along the flow stabilizing tube 3. The width of the longitudinal wing 42 in the radial direction of the flow stabilizing tube 3 increases smoothly from the end of the flow stabilizing plate 4 away from the flow meter 2 to the end of the flow stabilizing plate 4 close to the flow meter 2. The longitudinal wing 42 is hinged to the end of the flow stabilizing tube 3 away from the flow meter 2.

[0028] A drag reducing tip 43 is provided on the side of the longitudinal wing 42 and the transverse wing 41 facing away from the flow meter 2, and when the flow stabilizing sheet 4 is flipped over to the side of two adjacent transverse wings 41 being in contact with each other, the inner diameter of the cylindrical shape formed by one end of the plurality of longitudinal wings 42 close to the flow meter 2 is smaller than the inner diameter of the flow stabilizing tube 3; the longitudinal wing 42 is provided between two adjacent flow cutting sheets 31.

[0029] Therefore, the arrangement of multiple transverse wings 41 can suppress the flow tendency of turbulence and eddy current in the border area sewage in the radial direction of the flow stabilizing tube 3, and the arrangement of multiple longitudinal wings 42 can suppress the flow tendency of turbulence and eddy current in the border area sewage in the circumferential direction of the flow stabilizing tube 3, which can form an effective suppression and flow stabilization effect on turbulence and eddy current in the detection tube 1. At the same time, the end of the longitudinal wing 42 close to the flow meter 2 is located between two adjacent flow cutting pieces 31 on the inner wall of the flow stabilizing tube 3, which can further perform staggered flow stabilization on the sewage in the middle area at the output end of the flow stabilizing tube 3, further improving the flow stabilization effect.

[0030] Moreover, the lower the sewage flow rate in the detection tube 1, the greater the penetration of the end of the longitudinal wing 42 close to the flow meter 2 into the sewage flow in the middle area, and the more obvious the flow stabilization effect is; specifically, when the sewage flow rate in the detection tube 1 decreases, the sewage flow tends to be laminar flow, and the thickness of the thin layer between the water flow and the surface of the cutting plate 31 is relatively large, which may cause the sewage flow to slow down when it approaches the surface of the cutting plate 31, forming a large velocity gradient, and the cutting plate 31 cannot effectively eliminate this velocity gradient, thereby affecting the stability of the sewage flow in the middle area; and when the longitudinal wing 42 penetrates this part of the sewage in the middle area, on the one hand, the total flow stabilization treatment stroke of the cutting plate 31 and the longitudinal wing 42 is longer, and on the other hand, the performance of the longitudinal wing 42 moving axially with the change of the water flow rate can improve the flow stabilization effect to a certain extent; therefore, this arrangement of the longitudinal wing 42 can improve the problem of poor flow stabilization effect of the overall sewage in the middle area due to the weakening of the flow stabilization effect of the multiple cutting plates 31 on the inner wall of the flow stabilization tube 3 when the sewage flow rate in the detection tube 1 is low or the water level is low.

[0031] Specifically, in order to give full play to the follow-up performance of the steady flow sheet 4, refer to Figure 3 and Figure 5 , the above-mentioned follow-up adjustment mechanism includes: The resistance bowl 5 is slidably sleeved on the arc surface outer peripheral wall of the flow stabilizing tube 3, and the arc surface outer wall is provided with a resistance arc surface, which is a front end transition arc surface and a rear end straight surface or an outward expansion surface, and the distance between the rear end straight surface and the outer wall of the flow stabilizing tube 3 should not be too large to avoid causing significant interference to the normal flow of water; A reset member is disposed between the free end of the flow stabilizing tube 3 and the resistance bowl 5, and is used to make the resistance bowl 5 have a tendency to move away from the flow meter 2 when the impact force of the water flow on the resistance bowl 5 is weakened; The synchronous structure is arranged between the resistance bowl 5 and the longitudinal wings 42 , and is used to maintain the consistency of the flipping angles of all the longitudinal wings 42 when the resistance bowl 5 slides on the stabilizer tube 3 .

[0032] In one possible embodiment, referring to Figure 3 The synchronous structure includes: a plurality of positioning grooves 71 provided on the arc surface outer wall of the resistance bowl 5, and the plurality of positioning grooves 71 are arranged one by one corresponding to the plurality of longitudinal wings 42; the longitudinal wings 42 are magnetically adsorbed in the corresponding positioning grooves 71, and specifically, a permanent magnet can be embedded in the positioning groove 71, and a ferromagnetic part or another magnetically attracted permanent magnet can be arranged in the relevant area of ​​the longitudinal wing 42.

[0033] Therefore, when the sewage flow in the detection tube 1 increases, the water flow driving force on the resistance bowl 5 increases. When it is large enough to overcome the reset tendency of the reset member, the resistance bowl 5 slides on the periphery of the flow stabilizer 3 along the water flow direction, and the width of the longitudinal wings 42 in this direction gradually increases. Therefore, the resistance bowl 5 can push multiple longitudinal wings 42 to flip synchronously on the flow stabilizer 3 in the direction away from the flow stabilizer 3, which can slightly increase the angle between the flow stabilizer sheet 4 and the flow stabilizer 3, thereby improving the flow stabilization effect; at the same time, the longitudinal wings 42 are magnetically attracted to the positioning groove 71 of the resistance bowl 5, and the positioning groove 71 can reduce the lateral shaking probability of the longitudinal wings 42 during the flow stabilization process, thereby ensuring the flow stabilization effect; and when encountering excessive turbulence or eddy current in the local sewage flow in the detection tube 1, the flow stabilizer sheet 4 corresponding to the area can also overcome the magnetic attraction and vibrate to a certain extent with these turbulence or eddy currents, thereby accelerating the weakening of the kinetic energy of these turbulence or eddy currents, and further expanding the activity performance of the movable stabilizing sheet.

[0034] In another feasible embodiment, in order to prevent the flow stabilizing sheet 4 from being unable to return to its original position autonomously after being impacted by strong turbulence or eddy current, especially for the several flow stabilizing sheets 4 arranged in the lower area of ​​the flow stabilizing tube 3, which are affected by their own weight, it is difficult for the longitudinal wing 42 to recover autonomously once it is completely separated from the positioning groove 71. It can also be further arranged that an anti-slip groove connected to the positioning groove 71 and having a groove width greater than the groove width of the positioning groove 71 is provided at the bottom wall of the several positioning grooves 71 corresponding to the lower area of ​​the resistance bowl 5, and an anti-slip head that is plugged and adapted to the anti-slip groove is provided at the position of the longitudinal wing 42 corresponding to the flow stabilizing tube 3; the thickness of the anti-slip head is less than the depth of the anti-slip groove. Alternatively, a flexible rope or elastic rope is connected between the positioning groove 71 and the longitudinal wing 42. For example, after the elastic rope is set, when the turbulence or eddy current is weakened, the deformation force of the elastic rope and the magnetic attraction in the positioning groove 71 can effectively ensure that the flow stabilizing sheet 4 is flipped and reset.

[0035] In this way, the stabilizing sheet 4 can be shaken with the impact of strong turbulence or eddy current to weaken the kinetic energy of the turbulence or eddy current, and the stabilizing sheet 4 can be prevented from being unable to recover after being detached.

[0036] In other possible embodiments, refer to Figure 5 and Figure 6 The synchronous structure includes a connecting rod 72 hinged at one end to the resistance bowl 5 and at the other end to the longitudinal wing 42, and the connecting rod 72 is located between the resistance bowl 5 and the flow meter 2. In this way, when the resistance bowl 5 slides on the flow stabilizing tube 3 due to the impact of water flows with different flow rates, the multiple longitudinal wings 42 can be opened and closed synchronously and stably by means of the arrangement of multiple connecting rods 72, so that the follow-up response of the stabilizing plate can be more sensitive, and the opening angle of the flow stabilizing plate can be larger.

[0037] In addition, refer to Figure 3 and Figure 6 The reset member can be set as a reset spring 61 sleeved on the outer peripheral wall of the flow stabilizer 3, or it can be set as two first permanent magnets 62 respectively located on the free end of the flow stabilizer 3 and the resistance bowl 5 and repelling each other magnetically. Therefore, the elastic deformation force of the reset spring 61 after being compressed and the magnetic repulsion between the two first permanent magnets 62 can make the resistance bowl 5 have a tendency to reset after moving in the direction close to the flow meter 2. In this embodiment, considering that the present application is set in a sewage pipe network, it is preferred to choose to set the reset member as two non-contact first permanent magnets 62.

[0038] The implementation principle of a real-time monitoring device for sewage pipe network flow in the embodiment of the present application is as follows: After the monitoring device of the present application is installed in the sewage pipe network, the sewage in the sewage pipe network flows into the detection tube 1, and first passes through the flow stabilizing tube 3. A part of the sewage passes through the hollow part of the flow stabilizing tube 3 and is diverted and guided by multiple flow cutting pieces 31, which can effectively break the turbulence, eddy current and other abnormal flows of the circulating sewage, and improve the flow rate stability of the sewage flow in the middle area output from the free end of the flow stabilizing tube 3; another part of the sewage passes through the outer peripheral wall of the flow stabilizing tube 3, and is also adjusted by multiple flow stabilizing pieces 4, which can improve the flow rate stability of the sewage flow in the middle area. The stability of the flow velocity of the edge area sewage flow at the periphery of the sewage flow forms a flow protection layer surrounding the periphery of the middle area flow, which can effectively reduce the influence of turbulence and eddy current caused by scaling of the inner wall of the pipe on the flow velocity of the middle area sewage flow output by the flow stabilizer 3. Therefore, when the middle area sewage flow with a stable flow velocity output by the flow stabilizer 3 is flushed on the probe 21 of the downstream flow meter 2, the flow meter 2 can accurately detect the flow in the sewage pipe network, and effectively avoid the interference of abnormal flows such as turbulence and eddy currents in the sewage flow on the detection accuracy of the flow meter 2.

[0039] And because the flow stabilizing sheet 4 is hinged on the flow stabilizing tube 3, when the sewage flow velocity in the detection tube 1 increases, the resistance bowl 5 moves toward the end close to the flow meter 2, which can synchronously increase the angle between the flow stabilizing sheet 4 and the flow stabilizing tube 3. At this time, the effective radius of multiple flow stabilizing sheets 4 surrounding the outer periphery of the flow stabilizing tube 3 increases, so that the range of the edge area sewage surrounding the outer periphery of the central sewage flow increases and is in the shape of a cone with a small front and a large back along the water flow direction, which can better break up the turbulence and eddy current in the detection tube 1, provide a better rectification effect, and effectively ensure the flow velocity stability of the central area sewage output by the flow stabilizing tube 3, thereby ensuring the detection accuracy of the flow meter 2.

[0040] Therefore, by means of the setting of the flow stabilizing tube 3 and the follow-up regulating mechanism, the rectification effect can be adjusted autonomously according to the change of the flow velocity of the sewage in the detection tube 1, which can greatly improve the actual applicability of the monitoring equipment of the present application.

[0041] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0042] 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 sewage pipe network flow real-time monitoring device, comprising a detection tube (1), a flow meter (2) and flanges (11) arranged at both ends of the detection tube (1), characterized in that: The probe (21) of the flow meter (2) extends at least to the central axis of the detection tube (1); one end of the detection tube (1) is fixedly connected to a flow stabilizing tube (3) arranged along its length direction; the free end of the flow stabilizing tube (3) points to the probe (21) of the flow meter (2); The curved outer peripheral wall of the flow stabilizing tube (3) is provided with a plurality of flow stabilizing sheets (4) distributed in a circumferential array with equal spacing about its central axis; the curved inner peripheral wall of the flow stabilizing tube (3) is fixedly connected with a plurality of flow cutting sheets (31) arranged along its axial direction; one end of the flow stabilizing sheet (4) is hinged to the flow stabilizing tube (3) and the other end extends to be spaced apart from the probe (21) of the flow meter (2); the flow stabilizing sheet (4) is arranged along the length direction of the flow stabilizing tube (3) and its length is greater than the length of the flow stabilizing tube (3); The flow stabilizing tube (3) is provided with a follow-up adjustment mechanism for increasing the angle between the flow stabilizing sheet (4) and the flow stabilizing tube (3) when the sewage flow velocity in the detection tube (1) increases.

2. A sewage pipe network flow real-time monitoring device according to claim 1, characterized in that: The steady flow sheet (4) comprises: A transverse wing (41) having a cross-section in the shape of an arc coaxial with the flow stabilizer tube (3); The longitudinal wing (42) is integrally formed on the inner arc side of the transverse wing (41) and extends radially along the stabilizing tube (3); the width of the longitudinal wing (42) in the radial direction of the stabilizing tube (3) increases smoothly from the end of the stabilizing sheet (4) away from the flow meter (2) to the end of the stabilizing sheet (4) close to the flow meter (2); the longitudinal wing (42) is hinged to the end of the stabilizing tube (3) away from the flow meter (2).

3. A real-time monitoring device for sewage pipe network flow according to claim 2, characterized in that: The longitudinal wing (42) and the transverse wing (41) are both provided with a drag reducing tip (43) on the side facing away from the flow meter (2).

4. A sewage pipe network flow real-time monitoring device according to claim 2, characterized in that: When the flow stabilizing sheet (4) is flipped over to the side edges of two adjacent transverse wings (41) abutting against each other, the inner diameter of the cylindrical shape formed by the plurality of longitudinal wings (42) close to one end of the flow meter (2) is smaller than the inner diameter of the flow stabilizing cylinder (3).

5. A sewage pipe network flow real-time monitoring device according to any one of claims 2 to 4, characterized in that: The follow-up adjustment mechanism comprises: A resistance bowl (5) is slidably sleeved on the arc-surface outer peripheral wall of the flow stabilizing cylinder (3), and a resistance arc surface is provided on the arc-surface outer wall; A reset member (6) is arranged between the free end of the flow stabilizing tube (3) and the resistance bowl (5), and is used to make the resistance bowl (5) have a tendency to move in a direction away from the flow meter (2) when the impact force of the water flow on the resistance bowl (5) is weakened; The synchronous structure (7) is arranged between the resistance bowl (5) and the longitudinal wings (42) and is used to maintain the consistency of the flipping angles of all the longitudinal wings (42) when the resistance bowl (5) slides on the flow stabilizer (3).

6. A sewage pipe network flow real-time monitoring device according to claim 5, characterized in that: The same motion structure (7) comprises: A positioning groove (71) is formed on the arc-surface outer wall of the resistance bowl (5), and a plurality of positioning grooves (71) are provided in one-to-one correspondence with the plurality of longitudinal wings (42); The longitudinal wings (42) are magnetically attracted to the corresponding positioning grooves (71).

7. A sewage pipe network flow real-time monitoring device according to claim 6, characterized in that: The resistance bowl (5) is provided with an anti-slip groove at the bottom wall of the positioning groove (71), which is in communication with the positioning groove (71) and has a groove width greater than the groove width of the positioning groove (71); and the longitudinal wing (42) is provided with an anti-slip head that is plugged and matched with the anti-slip groove at a position corresponding to the flow stabilizing cylinder (3); The thickness of the anti-slipping head is smaller than the depth of the anti-slipping groove.

8. A real-time monitoring device for sewage pipe network flow according to claim 5, characterized in that: The same motion structure (7) comprises: A connecting rod (72) has one end hinged to the resistance bowl (5) and the other end hinged to the longitudinal wing (42), and the connecting rod (72) is located between the resistance bowl (5) and the flow meter (2).

9. A sewage pipe network flow real-time monitoring device according to claim 5, characterized in that: The reset element (6) is configured as a reset spring (61) sleeved on the outer peripheral wall of the flow stabilizer tube (3).

10. A real-time monitoring device for sewage pipe network flow according to claim 5, characterized in that: The reset element (6) is configured as two first permanent magnets (62) which are respectively located on the free end of the stabilizing tube (3) and the resistance bowl (5) and have magnetic repulsion against each other.

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