A monitoring device and monitoring system for intelligently monitoring the status of underground rainwater and sewage pipelines

Abstract

The present invention discloses a monitoring device and a monitoring system for intelligently monitoring the conditions of underground rainwater and sewage pipelines, and belongs to the technical field of pipeline monitoring. The technical scheme is as follows: a monitoring device for intelligently monitoring the conditions of underground rainwater and sewage pipelines, comprising a hollow cylindrical slide rail whose bottom end is connected to the top wall of the pipeline, a reflective and absorbing infrared hollow column whose top end cooperates with the hollow cylindrical slide rail and whose bottom end is provided with a high-transmittance hollow float, a long-wave infrared transmitting bar and a second long-wave infrared receiving bar vertically arranged on the inner wall of one side of the pipeline, and a first long-wave infrared receiving bar arranged on the inner wall of the other side of the pipeline and coordinated with the long-wave infrared transmitting bar. The beneficial effects of the present invention are as follows: the monitoring device for intelligently monitoring the conditions of underground rainwater and sewage pipelines provided by the present invention has a simple structure, ingenious design, real-time monitoring and low operation and maintenance costs, and a monitoring system provided that has effective monitoring and high supervision efficiency, reduces the operation and maintenance costs of treatment facilities, and has high reliability of monitoring data.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline monitoring, and in particular to a monitoring device and a monitoring system for intelligently monitoring the conditions of underground rainwater and sewage pipelines. Background Art

[0002] Usually, agricultural pollution projects belong to the whole county governance, but the governance scope is mostly scattered, small and miscellaneous, which puts a lot of economic and manpower pressure on the existing operation and maintenance team. Under the constraint of untimely information feedback from the existing operation and maintenance team, the infrastructure of a certain agricultural pollution project is seriously damaged and can no longer meet the requirements of normal domestic sewage treatment. For pipeline monitoring, manual inspection of whether the pipeline network is damaged is generally used. This monitoring method is not conducive to large-scale operation and maintenance. At the same time, it is difficult to unify the manual judgment standards, which brings data confusion to the monitoring process.

[0003] How to solve the above technical problems is the subject faced by the present invention. Summary of the invention

[0004] In order to solve the above-mentioned problems in the prior art, the present invention provides a monitoring device for intelligently monitoring the conditions of underground rainwater and sewage pipes with a simple structure, ingenious design, real-time monitoring and low operation and maintenance costs, as well as a monitoring system with effective monitoring and high supervision efficiency, reduced operation and maintenance costs of treatment facilities and high reliability of monitoring data.

[0005] In order to achieve the above-mentioned invention objectives, the present invention provides a monitoring device for intelligently monitoring the conditions of underground rainwater and sewage pipes, which includes a hollow cylindrical slide rail arranged on the top wall of the pipe and connected to the pipe at the bottom, a reflective infrared hollow column with a high-transmittance hollow float arranged at the bottom and matched with the hollow cylindrical slide rail at the top, a long-wave infrared transmitting bar and a second long-wave infrared receiving bar vertically arranged on the inner wall of one side of the pipe and respectively matched with the reflective infrared hollow column, and a first long-wave infrared receiving bar arranged on the inner wall on the other side of the pipe and matched with the long-wave infrared transmitting bar, and the long-wave infrared transmitting bar, the first long-wave infrared receiving bar, and the second long-wave infrared receiving bar are flush with each other.

[0006] The high-transmittance hollow buoy holds up the infrared-reflecting hollow column and keeps the bottom of the infrared-reflecting hollow column flush with the water surface while not blocking the long-wave infrared rays from passing through the water layer. The principle for keeping the bottom of the infrared-reflecting hollow column flush with the water surface is as follows: gravity mg = buoyancy ρgv. The material flowing in the pipeline is relatively stable and the density ρ is known. That is, the mass m of the infrared-reflecting hollow column and the high-transmittance hollow buoy is proportional to the displacement volume v of the high-transmittance hollow buoy. The critical volume for keeping the bottom of the infrared-reflecting hollow column flush with the water surface can be calculated. The critical volume will not be described here. A year-on-year calculation is performed in actual production. When the infrared-reflecting hollow column fluctuates up and down with the height of the water layer, the bottom of the infrared-reflecting hollow column can be kept flush with the water surface.

[0007] When in use, when rainwater and sewage flow through the pipe, an air layer and a water layer are formed from top to bottom in the pipe, and the highly transparent hollow float floats at the junction of the water layer and the air layer, and fluctuates up and down with the change of the water layer height, driving the infrared reflecting and absorbing hollow column to slide along the hollow column slide rail;

[0008] Furthermore, the material of the highly transparent hollow float is set to be ultra-thin resin.

[0009] The long-wave infrared rays emitted by the long-wave infrared transmitter are divided into two parts:

[0010] The part located in the water layer is received by the first long-wave infrared receiving strip through the water layer or the highly transparent hollow floating body, that is, the height at which the first long-wave infrared receiving strip receives the long-wave infrared rays is a;

[0011] The part located in the air layer is reflected by the reflection absorption infrared hollow column and then received by the second long-wave infrared receiving strip, that is, the height at which the second long-wave infrared receiving strip receives the long-wave infrared is b;

[0012] The preset height of the long-wave infrared emission strip is c. When c=a+b, the pipeline operates normally; when c≠a+b, the pipeline operates abnormally. At this time, sludge accumulation may occur at the bottom of the water layer, and the sum of the accumulation height, height a, and height b is equal to height c.

[0013] The specific features of the present invention are that the cross-sectional shape of the pipeline is set to be rectangular and the bottom surface is horizontal, the height of the long-wave infrared transmitting strip is equal to the height of the pipeline side wall, the long-wave infrared transmitting strip, the first long-wave infrared receiving strip, and the second long-wave infrared receiving strip are on the pipeline side wall from bottom to top, that is, the height of the pipeline side wall is c, the height of the water layer is a, and the height of the air layer is b. When the pipeline operates normally, the height of the pipeline side wall is the sum of the water layer height and the air layer height, which is convenient for monitoring.

[0014] The specific features of the present invention are that the transmitting end of the long-wave infrared transmitting strip is set to a convergent type, and the convergent type closing is used for infrared filtering, so that the emitted long-wave infrared rays are parallel to the cross section of the pipeline, the diffuse reflection of the long-wave infrared rays is reduced, and the validity of the measurement results is improved; the receiving ends of the first long-wave infrared receiving strip and the second long-wave infrared receiving strip are set to a divergent type, and the transmitting type expansion is used for long-wave infrared reception, so that the long-wave infrared rays that are not parallel to the cross section of the pipeline due to diffuse reflection are received as much as possible, the validity of the measurement results is improved, and it is ensured that the long-wave infrared rays emitted by the long-wave infrared transmitting strip are received by the first long-wave infrared receiving strip and / or the second long-wave infrared receiving strip.

[0015] The specific features of the present invention are that the reflective and absorbing infrared hollow column includes a hollow column body and a carbon dioxide gas filled in the hollow column body. The side wall of the hollow column body close to the long-wave infrared emitting strip is set to quartz glass or the outer wall is fully covered with quartz glass. Since long-wave infrared rays are difficult to penetrate quartz glass, the long-wave infrared rays emitted by the long-wave infrared emitting strip are reflected after encountering the quartz glass, and are absorbed by the carbon dioxide gas after entering the hollow column body through diffuse reflection.

[0016] The specific features of the present invention are that a first reflective infrared coating is provided on the outer side surface of the quartz glass to further reflect the long-wave infrared rays emitted by the long-wave infrared emitting strip, and a second reflective infrared coating is provided on the inner side surface of the side wall opposite to the quartz glass in the hollow column body to reflect the long-wave infrared rays entering the hollow column body to prevent them from passing through the hollow column body and being received by the first long-wave infrared receiving strip, thereby ensuring the effectiveness of monitoring. Preferably, the material of the first reflective infrared coating and the material of the second reflective infrared coating are set to be a combination of vacuum infrared coating and metal coating to ensure high reflectivity of long-wave infrared rays.

[0017] Furthermore, except for the side surfaces provided with quartz glass, the other side surfaces of the hollow column body are provided with high-transmittance thin-walled resin or the outer wall is fully covered with high-transmittance thin-walled resin. By utilizing the principle that long-wave infrared rays can penetrate resin, the diffusely reflected long-wave infrared rays in the water layer enter the reflective absorption infrared hollow column and are absorbed by the filled carbon dioxide gas. Preferably, the high-transmittance thin-walled resin is provided as a hard resin.

[0018] Furthermore, a non-damping pulley is installed on the inner wall of the hollow cylindrical slide rail to ensure that the infrared reflecting and absorbing hollow column is not hindered when making reciprocating motion inside the hollow cylindrical slide rail. Preferably, the hollow cylindrical slide rail and the pipeline are integrally injection molded.

[0019] A monitoring system including the monitoring device for intelligently monitoring the condition of underground rainwater and sewage pipes, comprising a plurality of pipe sections connected end to end in sequence, and a plurality of monitoring devices for intelligently monitoring the condition of underground rainwater and sewage pipes corresponding one by one to the plurality of pipe sections;

[0020] The pipeline includes an inlet pipe section, a laminar steady flow sand settling section, a measuring pipe section, a water storage pipe section and an outlet pipe section which are arranged in sequence along the water flow direction. The monitoring device for intelligently monitoring the underground rainwater and sewage pipe conditions is installed on the measuring pipe section. Preferably, the material of the pipe is set to glass fiber reinforced plastic with a smooth inner wall, and the inner wall of the pipe is coated with an antibacterial and anti-fouling adhesive material coating; further, a pipe socket is provided at the output end of the outlet pipe section, and a pipe socket matching the pipe socket is provided at the input end of the inlet pipe section. The diameter of the pipe socket is adapted to the diameter of the existing national standard drainage pipe socket to meet the installation requirements; the diameter of the inlet pipe section is the same as the drainage pipe installed during normal construction; that is, adjacent pipes are connected by the socket-and-spigot fitting between the pipe socket and the pipe socket, which is convenient for connection, and the water flows from the inward-retracted pipe socket to the adjacent pipe through the pipe socket, and the probability of water leakage at the socket position is low.

[0021] The laminar steady flow sand settling section and the water inlet pipe section are completed by integrated injection molding, and the laminar steady flow sand settling section and the measuring pipe section are completed by secondary welding injection molding. During the primary injection molding, a tooth is reserved on the side where the laminar steady flow sand settling section and the measuring pipe section are connected, which is convenient for subsequent welding injection molding to improve the strength of the equipment.

[0022] The measuring pipe section is completed by integrated injection molding, and is welded and molded with the water storage pipe section for the second time. During the first injection molding, a tooth is reserved on the side where the measuring pipe section and the water storage pipe section are connected, which is convenient for subsequent welding and injection molding to improve the strength of the equipment.

[0023] The water storage pipe section and the water outlet pipe section are completed by integrated injection molding. During the one-time injection molding, a tooth is reserved on the side where the water storage pipe section and the measuring pipe section are connected, which is convenient for subsequent welding and injection molding to improve the strength of the equipment; the cross section of the input end of the water outlet pipe section is set to be circular, and the cross section of the output end of the measuring pipe section is set to be rectangular, and the cross section of the input end of the water outlet pipe section is larger than the cross section of the output end of the measuring pipe section. When the water storage pipe section transitions from the measuring pipe section to the water outlet pipe section, a waistline is formed in the middle, and the bottom wall of the water storage pipe section close to the water outlet pipe section is lifted upward, and the two side walls are retracted inward, in order to raise the measuring water level of the measuring pipe section, slow down the water flow to form a laminar steady state, and make the measurement data more accurate;

[0024] The diameter of the outlet pipe section is the same as that of the drainage pipe installed during normal construction. The diameter of the pipe socket should be compatible with the socket diameter of the existing national standard drainage pipe to meet the installation requirements.

[0025] The specific features of the present invention include that a sinking portion is provided in the laminar steady flow sand settling section, and the bottom wall of the sinking portion is lower than the bottom wall of the measuring pipe section. When rainwater and sewage flow through this portion, the water flow is slowed down to form a laminar steady state. At the same time, dirt such as mud and sand is precipitated in the sinking portion, so that the monitoring device for intelligently monitoring the conditions of underground rainwater and sewage pipelines can measure data of the measuring pipe section more accurately. Furthermore, the cross-sectional shape of the output end of the water inlet pipe section is set to a circle, and the shape of the input end of the measuring pipe section is set to a rectangle, and the cross-sectional shape of the output end of the water inlet pipe section is set to be larger than the cross-sectional shape of the input end of the measuring pipe section. When the laminar steady flow sand settling section transitions from the output end of the water inlet pipe section to the input end of the measuring pipe section, a waistline, namely the sinking portion, is formed in the middle to ensure the laminar steady state effect.

[0026] Another specific feature of the present invention is that the monitoring system further comprises an extraction unit arranged in the laminar steady flow sand settling section for extracting deposited dirt such as mud and sand. Preferably, the extraction unit is located in the sinking part.

[0027] The specific features of the present invention are as follows: the extraction unit includes a hollow cylinder located at the bottom wall of the laminar steady flow sand settling section, that is, there are holes on the surface, which can smoothly pass the sludge without disturbing the water flow; a spiral push rod arranged in the hollow cylinder; a sewage collection barrel located outside the laminar steady flow sand settling section and connected to the output end of the hollow cylinder; the hollow cylinder and the sewage collection barrel are riveted and sealed with sealant; a crushing type submersible sewage pump located at the bottom of the sewage collection barrel; an external discharge pipe connected to the output end of the crushing type submersible sewage pump; preferably, the material of the external discharge pipe is set to hard plastic; and a waterproof motor whose output shaft is coaxial with the rotating shaft of the spiral push rod, preferably a high-torque, low-speed motor with a waterproof grade of IP80. When working, the waterproof motor is turned on, and the mud and sand and other sewage entering the hollow cylinder are transmitted to the sewage collection barrel by the spiral push rod, and then transmitted to the outside by the external discharge pipe after passing through the crushing type submersible sewage pump to complete the external discharge of sewage.

[0028] The specific features of the present invention are that the monitoring system also includes a visual monitoring unit arranged on the water inlet pipe section, the visual monitoring unit includes a visual camera arranged on the top wall of the water inlet pipe section, preferably a waterproof Hikvision camera, a visual processor arranged on the outside of the water inlet pipe section, and a data transmission harness electrically connected between the visual camera and the visual processor. The image taken by the visual camera is uploaded to the visual processor in real time through the data transmission harness, and the visual processor learns and stores data such as the previously uploaded rain and sewage mixed flow photos, debris photos, sewage flow photos, etc. During actual work, the pictures transmitted by the camera are compared. If rain and sewage mixed flow or pipe blockage is found, the system will be prompted to alarm to facilitate the arrangement of operation and maintenance personnel to deal with it.

[0029] The beneficial effects of the present invention are as follows: the monitoring device for intelligently monitoring the conditions of underground rainwater and sewage pipelines provided by the present invention can realize real-time monitoring of the pipeline operation status by absorbing and reflecting long-wave infrared rays, and has a simple structure, ingenious design, and low operation and maintenance costs; the monitoring system provided by the present invention has effective monitoring and high supervision efficiency, reduces the operation and maintenance costs of treatment facilities, reduces the number of monitoring workers and the workload, is suitable for large-area operation and maintenance, and the judgment standards are unified and effective, and the monitoring data has high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the present invention;

[0031] Figure 2 It is a schematic diagram of the working principle of the present invention;

[0032] Figure 3 It is a front view of the monitoring system of the present invention;

[0033] Figure 4 is a stereogram of the monitoring system of the present invention;

[0034] Figure 5 It is a structural schematic diagram of the water inlet pipe section in the present invention;

[0035] Figure 6 It is a structural schematic diagram of the laminar flow steady flow sand settling section of the present invention.

[0036] Among them, the figure markings are: 1. pipe socket; 2. extraction unit; 3. long-wave infrared transmitting strip; 4. first long-wave infrared receiving strip; 5. reflective absorption infrared hollow column; 6. second long-wave infrared receiving strip; 7. hollow column slide rail; 8. high-transmittance hollow float; 9. first reflective infrared coating; 10. quartz glass; 11. filled with carbon dioxide gas; 12. high-transmittance thin-walled resin; 13. second reflective infrared coating; 14. long-wave infrared; 15. external discharge pipe; 16. sewage collection barrel; 17. crushing submersible sewage pump; 18. hollow cylinder; 19. spiral push rod; 20. waterproof motor; 21. visual camera; 22. data transmission harness; 23. visual processor; 24. pipe socket; 25. outlet pipe section; 26. water storage pipe section; 27. measuring pipe section; 28. laminar steady flow sand settling section; 29. ​​water inlet pipe section; 30. air layer; 31. water layer. DETAILED DESCRIPTION

[0037] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0038] See also Figures 1 to 6The embodiment of the present invention provides a monitoring device for intelligently monitoring the conditions of underground rainwater and sewage pipelines, which includes a hollow cylindrical slide rail 7 arranged on the top wall of the pipeline and connected to the pipeline at the bottom, a reflective infrared hollow column 5 with a top end matched with the hollow cylindrical slide rail 7 and a high-transmittance hollow float 8 arranged at the bottom, a long-wave infrared transmitting bar 3 and a second long-wave infrared receiving bar 6 vertically arranged on the inner wall of one side of the pipeline and matched with the reflective infrared hollow column 5 respectively, and a first long-wave infrared receiving bar 4 arranged on the inner wall on the other side of the pipeline and matched with the long-wave infrared transmitting bar 3, and the long-wave infrared transmitting bar 3, the first long-wave infrared receiving bar 4, and the second long-wave infrared receiving bar 6 are flush with each other.

[0039] The highly transparent hollow buoy 8 holds up the infrared reflecting and absorbing hollow column 5, and makes the bottom of the infrared reflecting and absorbing hollow column 5 always flush with the water surface, while not blocking the long-wave infrared rays 14 from passing through the water layer 31. The principle of keeping the bottom of the infrared reflecting and absorbing hollow column 5 always flush with the water surface is: gravity mg = buoyancy ρgv, the flowing material in the pipeline is relatively stable, and the density ρ is known, that is, the mass m of the infrared reflecting and absorbing hollow column 5 and the highly transparent hollow buoy 8 is proportional to the displacement volume v of the highly transparent hollow buoy 8, and the critical volume for keeping the bottom of the infrared reflecting and absorbing hollow column 5 always flush with the water surface can be calculated. The critical volume will not be repeated here, and a year-on-year calculation is performed in actual production. When the infrared reflecting and absorbing hollow column 5 fluctuates up and down with the change of the water layer height, the bottom of the infrared reflecting and absorbing hollow column 5 can be kept flush with the water surface.

[0040] When in use, when rainwater and sewage flow through the pipe, an air layer 30 and a water layer 31 are formed from top to bottom in the pipe, and the highly transparent hollow float 8 floats at the junction of the water layer 31 and the air layer 30, and fluctuates up and down with the height change of the water layer 31, driving the infrared reflecting and absorbing hollow column 5 to slide along the hollow column slide rail 7;

[0041] Furthermore, the material of the highly transparent hollow float 8 is set to be ultra-thin resin.

[0042] The long-wave infrared rays 14 emitted by the long-wave infrared emission strip 3 are divided into two parts:

[0043] The part located in the water layer 31 is received by the first long-wave infrared receiving strip 4 through the water layer or the highly transparent hollow floating body 8, that is, the height at which the first long-wave infrared receiving strip 4 receives the long-wave infrared ray 14 is a;

[0044] The part located in the air layer 30 is received by the second long-wave infrared receiving strip 6 after being reflected by the reflection absorption infrared hollow column 5, that is, the height at which the second long-wave infrared receiving strip 6 receives the long-wave infrared ray 14 is b;

[0045] The height of the long-wave infrared emission strip 3 is preset to c. When c=a+b, the pipeline operates normally; when c≠a+b, the pipeline operates abnormally. At this time, sludge may accumulate at the bottom of the water layer 31, and the sum of the accumulation height, height a, and height b is equal to the height c.

[0046] The specific features of the present invention include that the cross-sectional shape of the pipeline is set to be rectangular and the bottom surface is horizontal, the height of the long-wave infrared transmitting strip 3 is equal to the height of the pipeline side wall, the long-wave infrared transmitting strip 3, the first long-wave infrared receiving strip 4, and the second long-wave infrared receiving strip 6 are on the pipeline side wall from bottom to top, that is, the height of the pipeline side wall is c, the height of the water layer 31 is a, and the height of the air layer 30 is b. When the pipeline operates normally, the height of the pipeline side wall is the sum of the height of the water layer 31 and the height of the air layer 30, which is convenient for monitoring.

[0047] The specific features of the present invention are that the transmitting end of the long-wave infrared transmitting strip 3 is set to a convergent type, and the convergent type closing is used for infrared filtering, so that the emitted long-wave infrared rays 14 are parallel to the cross section of the pipeline, the diffuse reflection of the long-wave infrared rays 14 is reduced, and the validity of the measurement results is improved; the receiving ends of the first long-wave infrared receiving strip 4 and the second long-wave infrared receiving strip 6 are set to a divergent type, and the transmitting type expansion is used to receive the long-wave infrared rays 14, and the long-wave infrared rays 14 that are not parallel to the cross section of the pipeline due to diffuse reflection are received as much as possible, so as to improve the validity of the measurement results and ensure that the long-wave infrared rays 14 emitted by the long-wave infrared transmitting strip 3 are received by the first long-wave infrared receiving strip 4 and / or the second long-wave infrared receiving strip 6.

[0048] The specific features of the present invention are that the reflective and absorbing infrared hollow column 5 includes a hollow column body and a carbon dioxide gas filled 11 arranged in the hollow column body. The side wall of the hollow column body close to the long-wave infrared emitting strip 3 is set to quartz glass 10 or the outer wall is fully covered with quartz glass 10. Since the long-wave infrared ray 14 is difficult to penetrate the quartz glass 10, the long-wave infrared ray 14 emitted by the long-wave infrared emitting strip 3 is reflected after encountering the quartz glass 10, and enters the hollow column body after diffuse reflection and is absorbed by the carbon dioxide gas filled 11.

[0049] The specific features of the present invention are that a first reflective infrared coating 9 is provided on the outer side of the quartz glass 10 to further reflect the long-wave infrared ray 14 emitted by the long-wave infrared emitting strip 3, and a second reflective infrared coating 13 is provided on the inner side of the side wall opposite to the quartz glass 10 in the hollow column body to reflect the long-wave infrared ray 14 entering the hollow column body to prevent it from passing through the hollow column body and being received by the first long-wave infrared receiving strip 4, thereby ensuring the effectiveness of monitoring. Preferably, the material of the first reflective infrared coating 9 and the material of the second reflective infrared coating 13 are set to be a combination of vacuum infrared coating and metal coating to ensure high reflectivity of the long-wave infrared ray 14.

[0050] Furthermore, except for the side surfaces provided with quartz glass, the other side surfaces of the hollow column body are provided with high-transmittance thin-walled resin 12 or the outer wall is fully covered with high-transmittance thin-walled resin 12. By utilizing the principle that long-wave infrared rays 14 can penetrate resin, the diffusely reflected long-wave infrared rays 14 in the water layer 31 enter the reflective absorption infrared hollow column 5 and are absorbed by the filled carbon dioxide gas 11. Preferably, the high-transmittance thin-walled resin 12 is provided with a hard resin.

[0051] Furthermore, a non-damping pulley is installed on the inner wall of the hollow cylindrical slide rail 7 to ensure that the reflecting infrared absorbing hollow column 5 is not hindered when making reciprocating motion therein. Preferably, the hollow cylindrical slide rail 7 is integrally injection-molded with the pipeline.

[0052] A monitoring system including a monitoring device for intelligently monitoring the condition of underground rainwater and sewage pipes, including a plurality of pipe sections connected end to end in sequence, and a plurality of monitoring devices for intelligently monitoring the condition of underground rainwater and sewage pipes corresponding one by one to the plurality of pipe sections;

[0053] The pipeline includes an inlet pipe section 29, a laminar steady flow sand settling section 28, a measuring pipe section 27, a water storage pipe section 26 and an outlet pipe section 25 which are arranged in sequence along the water flow direction. A monitoring device for intelligently monitoring the underground rainwater and sewage pipe conditions is installed on the measuring pipe section 27. Preferably, the material of the pipe is set to glass fiber reinforced plastic with a smooth inner wall, and the inner wall of the pipe is coated with an antibacterial and anti-fouling adhesive material coating; further, a pipe socket 1 is provided at the output end of the outlet pipe section 25, and a pipe socket 24 matching the pipe socket 1 is provided at the input end of the inlet pipe section 29. The diameter of the pipe socket 24 is adapted to the diameter of the existing national standard drainage pipe socket, meeting the installation requirements; the diameter of the inlet pipe section 29 is the same as the drainage pipe installed during normal construction; that is, adjacent pipes are connected by the socket-and-spigot fitting between the pipe socket 1 and the pipe socket 24, which is convenient for connection, and the water flows from the inward-retracted pipe socket 1 to the adjacent pipe through the pipe socket 24, and the probability of water leakage at the socket position is low.

[0054] The laminar flow steady flow sand settling section 28 and the water inlet pipe section 29 are completed by integrated injection molding, and the laminar flow steady flow sand settling section 28 and the measuring pipe section 27 are completed by secondary welding injection molding. During the primary injection molding, a tooth is reserved on the side where the laminar flow steady flow sand settling section 28 and the measuring pipe section 27 are connected, so as to facilitate the subsequent welding injection molding and improve the strength of the equipment;

[0055] The measuring pipe section 27 is completed by integrated injection molding, and is welded and molded with the water storage pipe section 26 for the second time. During the first injection molding, a tooth is reserved on the side where the measuring pipe section 27 and the water storage pipe section 26 are connected, so as to facilitate the subsequent welding and injection molding to improve the strength of the equipment.

[0056] The water storage pipe section 26 and the water outlet pipe section 25 are completed by integrated injection molding. During the one-time injection molding, a tooth is reserved on the side where the water storage pipe section 26 and the measuring pipe section 27 are connected, so as to facilitate the subsequent welding and injection molding to improve the strength of the equipment; the cross section of the input end of the water outlet pipe section 25 is set to be circular, and the cross section of the output end of the measuring pipe section 27 is set to be rectangular, and the cross section of the input end of the water outlet pipe section 25 is larger than the cross section of the output end of the measuring pipe section 27. When the water storage pipe section 26 transitions from the measuring pipe section 27 to the water outlet pipe section 25, a waistline is formed in the middle, and the bottom wall of the water storage pipe section 26 close to the water outlet pipe section 25 is lifted upward, and the two side walls are retracted, so as to raise the measuring water level of the measuring pipe section 27, slow down the water flow to form a laminar steady state, and make the measurement data more accurate;

[0057] The outlet pipe section 25 has the same diameter as the drainage pipe installed during normal construction, and the diameter of the pipe socket 1 should be compatible with the socket diameter of the existing national standard drainage pipe to meet the installation requirements.

[0058] The specific features of the present invention include that a sinking portion is provided in the laminar steady flow sand settling section 28, and the bottom wall of the sinking portion is lower than the bottom wall of the measuring pipe section 27. When rainwater and sewage flow through this portion, the water flow is slowed down to form a laminar steady state. At the same time, dirt such as mud and sand are precipitated in the sinking portion, so that the monitoring device for intelligently monitoring the conditions of underground rainwater and sewage pipelines can measure the data of the measuring pipe section 27 more accurately. Furthermore, the cross-sectional shape of the output end of the water inlet pipe section 29 is set to be circular, and the shape of the input end of the measuring pipe section 27 is set to be rectangular, and the cross-sectional shape of the output end of the water inlet pipe section 29 is larger than the cross-sectional shape of the input end of the measuring pipe section 27. When the laminar steady flow sand settling section 28 transitions from the output end of the water inlet pipe section 29 to the input end of the measuring pipe section 27, a waistline, i.e., a sinking portion, is formed in the middle to ensure the laminar steady state effect.

[0059] Another specific feature of the present invention is that the monitoring system further comprises an extraction unit 2 arranged in the laminar steady flow sand settling section 28 for extracting deposited dirt such as silt. Preferably, the extraction unit 2 is located in the sinking part.

[0060] The specific features of the present invention are as follows: the extraction unit 2 includes a hollow cylinder 18 located at the bottom wall of the laminar flow steady flow sand settling section 28, that is, there are holes on the surface, which can smoothly pass the sludge without disturbing the water flow, a spiral push rod 19 arranged in the hollow cylinder 18, a sewage collection barrel 16 located outside the laminar flow steady flow sand settling section 28 and connected to the output end of the hollow cylinder 18, the hollow cylinder 18 and the sewage collection barrel 16 are riveted and coated with sealant, and a crushing submersible sewage pump 17 is located at the bottom of the sewage collection barrel 16. An external discharge pipe 15 is connected to the output end of the crushing submersible sewage pump 17. Preferably, the material of the external discharge pipe 15 is set to be hard plastic, and a waterproof motor 20 whose output shaft is coaxial with the rotating shaft of the spiral push rod 19 is preferably a motor with high torque and low speed and waterproof grade IP80. When working, the waterproof motor is turned on, and the mud and sand and other dirt entering the hollow cylinder 18 are transmitted to the dirt collection barrel 16 by the spiral push rod 19, and then transmitted to the outside by the external discharge pipe 15 after passing through the crushing submersible sewage pump 17, thereby completing the external discharge of the dirt.

[0061] The specific features of the present invention are that the monitoring system also includes a visual monitoring unit arranged on the water inlet pipe section 29, the visual monitoring unit includes a visual camera 21 arranged on the top wall of the water inlet pipe section 29, preferably a waterproof Hikvision camera, a visual processor 23 arranged on the outside of the water inlet pipe section 29, and a data transmission harness 22 electrically connected between the visual camera 21 and the visual processor 23. The image taken by the visual camera 21 is uploaded to the visual processor 23 in real time through the data transmission harness 22, and the visual processor 23 learns and stores the previously uploaded rain and sewage mixed flow photos, debris photos, sewage flow photos and other data, and compares the pictures transmitted by the camera during actual work. If rain and sewage mixed flow or pipe blockage is found, the system will be prompted to alarm to facilitate the arrangement of operation and maintenance personnel to deal with it.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A monitoring device for intelligently monitoring the status of underground rainwater and sewage pipelines, characterized in that: It comprises a hollow cylindrical slide rail (7) arranged on the top wall of the pipeline and connected to the pipeline at the bottom, a reflective infrared hollow column (5) with a top end matched with the hollow cylindrical slide rail (7) and a high-transmittance hollow floating body (8) arranged at the bottom, a long-wave infrared transmitting strip (3) and a second long-wave infrared receiving strip (6) vertically arranged on the inner wall of one side of the pipeline and respectively matched with the reflective infrared hollow column (5), and a first long-wave infrared receiving strip (4) arranged on the inner wall of the other side of the pipeline and matched with the long-wave infrared transmitting strip (3), wherein the high-transmittance hollow floating body (8) does not block the long-wave infrared rays from passing through the water layer; The cross-sectional shape of the pipeline is set to be rectangular and the bottom surface is horizontal; the height of the long-wave infrared transmitting strip (3) is equal to the height of the side wall of the pipeline; the long-wave infrared transmitting strip (3), the first long-wave infrared receiving strip (4), and the second long-wave infrared receiving strip (6) are flush with each other; The transmitting end of the long-wave infrared transmitting bar (3) is configured as a converging type, and the receiving ends of the first long-wave infrared receiving bar (4) and the second long-wave infrared receiving bar (6) are configured as a diverging type; The reflective infrared absorbing hollow column (5) comprises a hollow column body and a carbon dioxide gas (11) filled in the hollow column body, and a side wall of the hollow column body close to the long-wave infrared emission strip (3) is formed of quartz glass (10); A first infrared reflective coating (9) is provided on the outer side surface of the quartz glass (10), and a second infrared reflective coating (13) is provided on the inner side surface of the side wall of the hollow column body opposite to the quartz glass (10).

Images