Rapid maintenance type channel sludge flow concentration online monitoring device

Abstract

The invention discloses a rapid maintenance type channel sludge flow concentration online monitoring device which comprises a channel main body, a first flow measurement unit, a second flow measurement unit, a flow guide pipe, a particle measurement unit and a control unit. A sampling port of the diversion pipe is mounted in a channel mainstream area in a direction opposite to the sludge flowing direction; the control unit adjusts the inflow amount of the flow guide pipe to enable data of the two flow units to be matched, and the concentration is calculated by combining particle number and flow. The device further comprises a cleaning medium supply device for preventing a sampling port from being blocked, data are corrected in cooperation with an ultrasonic-assisted monitoring module, and rapid maintenance is achieved through a pool top catenary lifting hoist. The device can accurately monitor the flow and the concentration of the sludge in real time, reduces the maintenance cost, is adaptive to various channel scenes, and meets the requirement of efficient process control.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment plant construction and operation technology, and more specifically, to a rapidly maintainable online monitoring device for channel sludge flow and concentration. Background Technology

[0002] In wastewater treatment and industrial solid-liquid treatment, the flow rate and solid concentration of sludge in channels are key process parameters that directly affect treatment efficiency and discharge compliance rates. Current sludge concentration monitoring methods mostly employ offline sampling and testing or traditional online devices. Offline methods cannot achieve real-time monitoring, leading to delays in process adjustments. Traditional online devices, such as insertion sensors, often have sampling ports located at the channel boundary layer, which are affected by the flow patterns on the channel walls, resulting in samples that cannot represent the mainstream sludge concentration and leading to large measurement deviations.

[0003] Meanwhile, existing devices lack effective anti-clogging mechanisms for sampling ports, allowing sludge particles to easily adhere and clog sampling channels, necessitating frequent shutdowns for disassembly and cleaning, resulting in high maintenance costs. Furthermore, flow rate and concentration monitoring are often performed independently, making it difficult to achieve linked calculations of flow rate and concentration, and thus failing to accurately reflect the total solids content in the sludge. In addition, while some devices possess basic monitoring functions, maintenance requires the removal of numerous pipelines, making operations cumbersome and disrupting continuous production. Therefore, there is an urgent need for an integrated device that combines accurate monitoring, automatic anti-clogging, and rapid maintenance functions. Summary of the Invention

[0004] In view of this, the present invention proposes a rapid-maintainable online monitoring device for channel sludge flow concentration, comprising: a channel body for conveying sludge, a first flow measurement unit, a guide pipe, a second flow measurement unit, a particle measurement unit, and a control unit; the channel body is used to flow the sludge to be tested, the first flow measurement unit is installed on the channel body and is used to measure the total flow rate of sludge flowing through the channel body; one end of the guide pipe is opened in the channel body to form a sampling port, and the other end is connected to the particle measurement unit. The sampling port is installed in the opposite direction to the flow direction of the sludge in the channel body and is located in the mainstream area of ​​the sludge in the channel body to collect representative samples; the second flow measurement unit is installed on the guide pipe and is used to measure the flow rate of the sludge sample flowing through the guide pipe; the control unit is used to adjust the sludge inflow rate of the guide pipe so that the flow rate measured by the second flow measurement unit is proportionally matched with the flow rate measured by the first flow measurement unit, and to calculate the solid concentration of the sludge in the channel body based on the particle number measured by the particle measurement unit and the flow rate data of the second flow measurement unit.

[0005] Furthermore, the sampling port of the guide pipe is located in the area where the sludge flow direction in the main body of the channel is vertically upward or vertically downward, and the opening direction of the sampling port is opposite to the sludge flow direction in this area; the main flow area of ​​the main body of the channel is defined as the central area at a distance of not less than 1 / 3 of the inner diameter of the channel from the inner wall of the channel, so as to avoid the influence of the boundary layer flow state on the representativeness of the sampling.

[0006] Furthermore, it also includes a cleaning medium supply device, which is connected to the middle of the guide pipe through a branch pipeline. It can deliver compressed air or clean water as a cleaning medium to the sampling port to remove sludge particles attached to the sampling port and prevent the sampling port from being blocked. The cleaning medium supply device is electrically connected to the control unit and can automatically start cleaning according to a preset cycle or when the particle measurement unit detects abnormal data.

[0007] Furthermore, the control unit controls the sludge inflow rate into the guide pipe through an adjustment component, which is selected from at least one of a flow regulating valve installed on the guide pipe and a pressurizing pump for pressurizing the sludge in the guide pipe; the control unit receives real-time data from the first flow measuring unit and the second flow measuring unit, and adjusts the opening degree or output power of the adjustment component through a PID algorithm to achieve flow ratio matching control.

[0008] Furthermore, the particle measurement unit employs an electromagnetic induction or light scattering online particle counter, which can output the cumulative number of solid particles in the sludge sample per unit time; the second flow measurement unit is a liquid flow meter, which outputs the real-time flow rate of the sludge sample; the control unit has a built-in concentration calculation module, which calculates the sludge solid concentration based on the formula C=P / (T*F) (where C is the sludge solid concentration, P is the cumulative number of particles measured by the particle measurement unit, T is the sampling period, and F is the average flow rate measured by the second flow measurement unit).

[0009] Furthermore, it also includes a main tank and an auxiliary tank. The main tank is used to store sludge to be treated, and the auxiliary tank is connected to the main tank through an overflow pipe to receive excess sludge overflowing from the main tank. One end of the channel body is connected to the bottom of the auxiliary tank, and the other end is connected to the nozzle device at the top of the main tank through a circulation pump to form a sludge circulation loop. The first flow measurement unit is installed on the side of the channel body near the auxiliary tank to ensure that the measurement covers the entire circulation flow.

[0010] Furthermore, the sampling port of the guide pipe is directionally adjustable through a rotatable collection pipe. One end of the collection pipe is inserted into the channel body, and the sampling port is located on the side wall of the collection pipe. By rotating the collection pipe, the reverse angle between the sampling port and the sludge flow direction can be adjusted to adapt to the flow characteristics of different channels. A sealing element is provided at the connection between the collection pipe and the channel body to prevent sludge leakage.

[0011] Furthermore, it also includes an ultrasonic-assisted monitoring module, which includes an ultrasonic transmitting sensor and an ultrasonic receiving sensor installed on both sides of the outer wall of the channel body. The ultrasonic transmitting sensor emits ultrasonic waves into the channel body at a 45° angle, and the ultrasonic receiving sensor receives the ultrasonic signal after penetrating the sludge. The ultrasonic-assisted monitoring module is electrically connected to the control unit and, based on the attenuation intensity and propagation speed of the ultrasonic signal, assists in correcting the concentration calculation results of the particle measurement unit, thereby improving the detection accuracy of low-concentration sludge.

[0012] Furthermore, it also includes a quick maintenance component, which includes a suspended chain hoist and a stainless steel chain installed on the bank of the main channel. The suspended chain hoist is fixed by feet, which are equipped with an adjustable disc that can rotate 360° and a stainless steel support rod. The end of the support rod is equipped with a lifting pulley. One end of the stainless steel chain is connected to a fixed structure near the guide pipe or sampling port, and the other end is connected to the suspended chain hoist. The guide pipe and sampling port components can be lifted as a whole by the hoist to achieve quick disassembly and maintenance.

[0013] Furthermore, the control unit also incorporates a process monitoring algorithm. The algorithm monitors the changes in sound velocity, temperature, and particle distribution uniformity of the sludge within the channel body through a sound velocity filter, a temperature filter, and a signal filter, respectively. When the sound velocity of the sludge exceeds the reference range, the temperature deviates from normal operating conditions, or the particle distribution uniformity is below the threshold, the control unit issues an early warning signal and adjusts the operating frequency of the cleaning medium supply device or the control parameters of the regulating component to ensure detection stability.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The sampling port is located in the mainstream area of ​​the channel and installed in reverse to avoid boundary layer flow interference and ensure sample representativeness; combined with particle measurement and dual flow linkage calculation, and ultrasonic-assisted correction, the concentration calculation error is small, making it especially suitable for low-concentration sludge scenarios.

[0015] 2. The cleaning medium supply device can be automatically activated according to the cycle or in case of abnormality to remove particles attached to the sampling port, reduce the frequency of blockage, extend the continuous operation time, and reduce the cost of manual cleaning.

[0016] 3. The quick maintenance component can lift the guide pipe and sampling port components as a whole using a catenary hoist, eliminating the need to disassemble a large number of pipelines, thus improving maintenance efficiency and reducing the impact of downtime on production.

[0017] 4. The control unit achieves flow ratio matching through the PID algorithm, and the built-in process monitoring algorithm monitors the operating conditions in real time. When abnormalities occur, it automatically issues warnings and adjusts parameters, reducing the intensity of manual intervention and ensuring process stability.

[0018] 5. The sampling port can be adjusted by rotating the collection tube to adapt to channels with different sludge flow directions, such as vertical and vertical. It is also compatible with various cleaning media such as compressed air and clean water, and is suitable for multiple fields such as sewage treatment and industrial solid waste treatment. Attached Figure Description

[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A schematic diagram of the structure of the online monitoring device for rapid maintenance of channel sludge flow concentration provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the data flow of the online monitoring device for rapid maintenance of channel sludge flow concentration provided in an embodiment of the present invention; In the diagram: 01 - First flow measurement unit; 02 - Channel body; 03 - Sampling port; 04 - Control unit; 05 - Particle measurement unit; 06 - Second flow measurement unit; 07 - Cleaning medium supply device; 08 - Flow regulating valve; 09 - Pressure pump. Detailed Implementation

[0020] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, embodiments and features in the embodiments of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] Reference Figure 1In some embodiments of this application, a quick-maintainable online monitoring device for channel sludge flow concentration includes a channel body 02 for conveying sludge, a first flow measurement unit 01, a sampling port 03, a second flow measurement unit 06, a particle measurement unit 05, and a control unit 04. The channel body 02 is used to flow the sludge to be tested. The first flow measurement unit 01 is installed on the channel body 02 and is used to measure the total flow rate of sludge flowing through the channel body 02. One end of the sampling port 03 is opened inside the channel body 02 to form a sampling port, and the other end is connected to the particle measurement unit 05. The sampling port faces... The sampling unit 06 is installed in the opposite direction to the flow of sludge in the main channel 02 and is located in the mainstream sludge area of ​​the main channel 02 to collect representative samples; the second flow measurement unit 06 is installed on the sampling port 03 to measure the flow rate of the sludge sample flowing through the sampling port 03; the control unit 04 is used to adjust the sludge inflow rate at the sampling port 03 so that the flow rate measured by the second flow measurement unit 06 is proportionally matched with the flow rate measured by the first flow measurement unit 01, and calculates the solid concentration of sludge in the main channel 02 based on the particle number measured by the particle measurement unit 05 and the flow rate data of the second flow measurement unit 06.

[0022] Specifically, the channel body 02 is made of concrete, and the core components of the device also include a cleaning medium supply device 07. The sampling port 03 is located in the area within the channel body 02 where the sludge flow direction is vertically upward or vertically downward, and the opening direction of the sampling port is opposite to the sludge flow direction in that area; the mainstream area of ​​the channel body 02 is defined as the central area at a distance of not less than 1 / 3 of the channel's inner diameter from the inner wall, to avoid the influence of the boundary layer flow state on the representativeness of the sampling.

[0023] One end of the sampling port 03 is inserted into the channel body 02 via a rotatable collection tube. The collection tube has an L-shaped structure, and the sampling port is located on the side wall of the collection tube. Since the sludge flow direction in this area within the channel body 02 is vertically upward, the sampling port opens vertically downward, completely opposite to the sludge flow direction, thus avoiding interference from low-velocity sludge in the boundary layer. A seal is provided at the connection between the collection tube and the channel body 02 to prevent sludge leakage. The angle can be finely adjusted by rotating the external adjustment knob of the collection tube to accommodate minor changes in the flow pattern within the channel.

[0024] Specifically, the control unit 04 controls the sludge inflow rate of the sampling port 03 through an adjustment component. The adjustment component is selected from at least one of a flow regulating valve 08 installed on the sampling port 03 and a pressurizing pump 09 that pressurizes the sludge in the sampling port 03. The control unit 04 receives real-time data from the first flow measurement unit 01 and the second flow measurement unit 06, and adjusts the opening degree or output power of the adjustment component through a PID algorithm to achieve flow ratio matching control.

[0025] The control unit 04 is installed in a rainproof control cabinet on the bank of the main channel 02. It is connected to the first flow measurement unit 01, the second flow measurement unit 06, the particle measurement unit 05, and the adjustment component via cables. The control unit 04 has a built-in PID control algorithm and receives data from the two flow units in real time. When the total flow of the channel measured by the first flow measurement unit 01 reaches the threshold, the control unit 04 controls the adjustment component to stabilize the sample flow measured by the second flow measurement unit 06 within the threshold, ensuring that the sample concentration is consistent with the mainstream sludge concentration.

[0026] Specifically, it also includes an ultrasonic-assisted monitoring module, which includes ultrasonic transmitting sensors and ultrasonic receiving sensors installed on both sides of the outer wall of the channel body 02. The ultrasonic transmitting sensors emit ultrasonic waves into the channel body 02 at a 45° angle, and the ultrasonic receiving sensors receive the ultrasonic signals after penetrating the sludge. The ultrasonic-assisted monitoring module is electrically connected to the control unit 04 and, based on the attenuation intensity and propagation speed of the ultrasonic signal, assists in correcting the concentration calculation results of the particle measurement unit 05, thereby improving the detection accuracy of low-concentration sludge.

[0027] The compressed air pipeline and clean water pipeline of the cleaning medium supply device 07 are connected to the middle branch interface of the sampling port 03 through a three-way valve. The control unit 04 presets the cleaning cycle and time. When the particle measurement unit 05 does not detect a particle signal for 5 consecutive minutes, it is determined that the sampling port is blocked. The control unit 04 automatically starts the cleaning program, giving priority to compressed air. If no data is recovered after 10 seconds, it switches to clean water rinsing until the data is normal.

[0028] The transmitting and receiving sensors of the ultrasonic-assisted monitoring module are symmetrically installed on both sides of the outer wall of the channel body 02. The transmitting sensor emits ultrasonic waves into the channel, and the receiving sensor receives the signal after penetrating the sludge. The control unit 04 corrects the concentration calculation results of the particle measurement unit 05 based on the change in ultrasonic wave propagation speed.

[0029] Specifically, it also includes a quick maintenance component, which includes a suspended chain hoist and a stainless steel chain installed on the bank of the main channel 02. The suspended chain hoist is fixed by feet, which are equipped with a 360° rotatable adjustment plate and a stainless steel support rod. The end of the support rod is equipped with a lifting pulley. One end of the stainless steel chain is connected to the sampling port 03 or a fixed structure near the sampling port, and the other end is connected to the suspended chain hoist. The sampling port 03 and the sampling port components can be lifted as a whole by the hoist to achieve quick disassembly and maintenance.

[0030] The rapid maintenance component's top-mounted catenary hoist is fixed to the concrete foundation on the bank of the main channel 02 via anchors. The anchors are equipped with a 360° rotatable adjustment disc. A stainless steel straight rod is connected to the top of the adjustment disc, and a diagonal support rod with a nylon lifting pulley is welded to the upper end of the straight rod. One end of the stainless steel catenary is connected to the fixing lug of the sampling port 03, and the other end passes around the pulley and connects to the hoist. When maintenance of the sampling port or particle measurement unit 05 is required, the circulation pump is turned off, and the hoist can be operated to lift the sampling port 03, collection pipe, and particle measurement unit 05 as a whole, without disassembling the pipeline, thus shortening maintenance time.

[0031] The monitoring process of this application refers to Figure 2 It can be seen that: when the sludge flows in the main body of the channel 02, the first flow measurement unit 01 uploads the total flow data to the control unit 04 in real time. The control unit 04 controls the adjustment component to keep the sample flow rate in the sampling port 03 in proportion to the total flow rate. The sampling port collects sludge samples from the mainstream area and transports them to the particle measurement unit 05 through the sampling port 03.

[0032] Particle measurement unit 05 outputs the cumulative particle count value P every 10ms, and the second flow measurement unit 06 outputs the average flow velocity F; the control unit 04 calculates the concentration C based on the formula C=P / (T*F) (T=60s), and outputs the final concentration after correction by the ultrasonic module.

[0033] Control unit 04 monitors the propagation speed of ultrasonic waves through a sound velocity filter and monitors the sludge temperature through a temperature filter. When the sludge temperature is lower than the threshold, control unit 04 issues an audible and visual warning and automatically increases the output power of the regulating component to ensure stable flow.

[0034] The above scenarios are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0035] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program goods. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program goods embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0036] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program goods according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0037] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0038] These computer program instructions can also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A quick maintenance type channel sludge flow concentration on-line monitoring device, characterized by, The application relates to a sludge concentration measuring device, which comprises a channel main body, a first flow measuring unit, a flow guide pipe, a second flow measuring unit, a particle measuring unit and a control unit. The channel main body is used for flowing sludge to be detected, the first flow measuring unit is installed on the channel main body and is used for measuring the total flow of the sludge flowing through the channel main body. One end of the flow guide pipe is opened in the channel main body to form a sampling port, the other end of the flow guide pipe is connected with the particle measuring unit, the sampling port is installed in a reverse direction to the flowing direction of the sludge in the channel main body and is located in a main flow area of the sludge in the channel main body to collect a representative sample. The second flow measuring unit is installed on the flow guide pipe and is used for measuring the sample flow of the sludge flowing through the flow guide pipe. The control unit is electrically connected with the first flow measuring unit, the second flow measuring unit and the particle measuring unit, is used for receiving detection data of the first flow measuring unit, the second flow measuring unit and the particle measuring unit and outputting a control signal. The control unit is used for adjusting the sludge inflow of the flow guide pipe, making the flow measured by the second flow measuring unit match the flow measured by the first flow measuring unit in proportion and calculating the solid concentration of the sludge in the channel main body based on the particle number measured by the particle measuring unit and the flow data of the second flow measuring unit. The sampling port of the flow guide pipe is located in a region vertically upward or vertically downward to the flowing direction of the sludge in the channel main body, and the opening direction of the sampling port is opposite to the flowing direction of the sludge in the region; the main flow area of the channel main body is defined as a central area with a spacing distance not less than 1 / 3 of the inner diameter of the channel, so as to avoid the influence of the boundary layer flow state on the sampling representative.

2. The rapid maintenance channel sludge flow concentration online monitoring device according to claim 1, characterized in that, The cleaning medium supply device is electrically connected with the control unit and can automatically start cleaning according to a preset period or when the particle measuring unit detects abnormal data.

3. The rapid maintenance channel sludge flow concentration on-line monitoring device according to claim 1, characterized in that, The control unit controls the sludge inflow of the flow guide pipe through an adjusting assembly, the adjusting assembly is selected from at least one of a flow adjusting valve installed on the flow guide pipe and a pressurizing pump for pressurizing the sludge in the flow guide pipe; the control unit receives real-time data of the first flow measuring unit and the second flow measuring unit, adjusts the opening degree or output power of the adjusting assembly through a PID algorithm and realizes proportional matching control of the flow. The particle measuring unit adopts an online particle counter and can output the cumulative number of solid particles in the sludge sample per unit time; the second flow measuring unit is a liquid flow meter and outputs the real-time flow speed of the sludge sample; the control unit is internally provided with a concentration calculation module and calculates the solid concentration of the sludge based on the formula C=P / (T*F), wherein C is the solid concentration of the sludge, P is the cumulative value of the particle number measured by the particle measuring unit, T is a preset fixed sampling period and F is the average flow speed measured by the second flow measuring unit.

4. The rapid maintenance channel sludge flow concentration on-line monitoring device according to claim 1, characterized in that, The application further comprises a main tank and an auxiliary tank, the main tank is used for storing sludge to be treated, the auxiliary tank is connected with the main tank through an overflow pipeline and receives the excess sludge overflowing from the main tank.

5. The rapid maintenance channel sludge flow concentration on-line monitoring device of claim 1, wherein, ​ 6. The quickly-maintainable in-channel sludge flow concentration on-line monitoring device according to claim 1, characterized in that, ​ The channel body is connected with the bottom of the auxiliary groove at one end, and connected with the nozzle device at the top of the main groove at the other end through a circulating pump, forming a sludge circulating loop. The first flow measurement unit is installed on the side of the channel body close to the auxiliary groove, ensuring that the measurement covers the full circulating flow.

7. The quickly-maintainable in-channel sludge flow concentration on-line monitoring device according to claim 1, characterized in that, The sampling port of the flow guide pipe adjusts the direction through a rotatable collection pipe, one end of which is inserted into the channel body, and the sampling port is arranged on the side wall of the collection pipe. By rotating the collection pipe, the reverse angle of the sampling port with the sludge flow direction can be adjusted to adapt to the flow characteristics of different channels. A sealing element is arranged at the connection between the collection pipe and the channel body to prevent sludge leakage.

8. The quickly-maintainable in-channel sludge flow concentration on-line monitoring device according to claim 1, characterized in that, An ultrasonic auxiliary monitoring module is further included, which comprises ultrasonic transmitting sensors and ultrasonic receiving sensors installed on both sides of the outer wall of the channel body. The ultrasonic transmitting sensors emit ultrasonic waves at an angle of 45° into the channel body, and the ultrasonic receiving sensors receive the ultrasonic signals that have penetrated through the sludge. The ultrasonic auxiliary monitoring module is electrically connected with the control unit. Based on the attenuation intensity and propagation speed of the ultrasonic signals, the concentration calculation result of the particle measurement unit is corrected to improve the detection accuracy of low-concentration sludge.

9. The rapidly maintainable in-line channel sludge flow concentration monitoring device of claim 1, wherein, A quick maintenance assembly is further included, which comprises a pool top catenary lifting hoist and a stainless steel chain installed on the bank of the channel body. The pool top catenary lifting hoist is fixed by a footing, and an adjustable disc and a stainless steel support rod that can rotate 360° are arranged on the footing. A lifting pulley is arranged at the end of the support rod. One end of the stainless steel chain is connected with a fixed structure near the flow guide pipe or the sampling port, and the other end is connected with the catenary lifting hoist. The flow guide pipe and the sampling port components can be lifted as a whole by the lifting hoist to realize quick disassembly and maintenance.

10. The rapidly maintainable in-line monitoring device for channel sludge flow concentration according to claim 1, characterized in that, The control unit further comprises a process monitoring algorithm. The algorithm respectively monitors the sound velocity change, temperature change and particle distribution uniformity of the sludge in the channel body through a sound velocity filter, a temperature filter and a signal filter. When the sound velocity of the sludge exceeds the reference range, the temperature deviates from the normal working condition, or the particle distribution uniformity is lower than the threshold value, the control unit sends a warning signal and adjusts the working frequency of the cleaning medium supply device or the control parameters of the adjustment assembly to ensure the detection stability.

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