CN218674967U - Multi-stage filtration water quality on-line monitoring device - Google Patents
Multi-stage filtration water quality on-line monitoring device Download PDFInfo
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- CN218674967U CN218674967U CN202223014132.9U CN202223014132U CN218674967U CN 218674967 U CN218674967 U CN 218674967U CN 202223014132 U CN202223014132 U CN 202223014132U CN 218674967 U CN218674967 U CN 218674967U
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Abstract
The application discloses multistage filtration quality of water on-line monitoring device can improve water quality testing's accuracy, and the device has longer life. The multi-stage filtration water quality on-line monitoring device comprises a shell, a water inlet pipe, a self-suction water inlet pump, a multi-stage filtration assembly, a filtration water pump, a monitoring box, a water quality sensor, a drain pipe and a control module. One end of the water inlet pipe is connected with the water inlet port of the multi-stage filtering component through the self-priming water inlet pump, and the other end of the water inlet pipe penetrates out of the wall of the shell and is positioned outside the closed cavity. The multistage filter assembly has at least two screens with different pore sizes for multistage filtration. The probe of the water quality sensor is arranged in the monitoring pool and used for monitoring the water filtered by the multi-stage filtering component, one end of the drain pipe is communicated with the monitoring pool, and the other end of the drain pipe penetrates through the wall of the shell and is positioned on the outer side of the closed cavity; the control module is connected with the self-suction water inlet pump, the filtering water pump and the water quality sensor and is used for receiving water quality data detected by the water quality sensor.
Description
Technical Field
The application relates to the technical field of sewage treatment, in particular to a multi-stage filtration water quality on-line monitoring device.
Background
With the rapid development of the sensor industry, the method is different from the traditional manual water quality sampling and detecting mode, and at present, water quality monitoring tends to be real-time and automatic online unattended sensor monitoring. Aiming at different monitoring indexes, the detection method mainly comprises an optical analysis method, an electrode method, an electrochemical analysis method and the like. The chemical analysis method has high detection precision, but because the detection period is long, some reaction reagents can cause secondary pollution to the environment, the storage time of the reagents is short, frequent maintenance is needed, and the maintenance cost and the workload are increased. The photoelectric method has short measurement time, does not need medicament addition, and is widely used for manufacturing single-parameter/multi-parameter in-situ online water quality monitoring equipment. However, the photoelectric monitor is easily affected by the floating impurities or particulate matters in water, resulting in poor accuracy and stability of data results, and meanwhile, the impact of the solid impurities may also cause damage to the precision parts of the sensor, shorten the normal service life of the device, and increase the subsequent operation and maintenance cost.
SUMMERY OF THE UTILITY MODEL
The application provides a multistage filtration quality of water on-line monitoring device can improve water quality testing's accuracy, and the device has longer life.
The purpose of the application is realized by the following technical scheme:
the application provides a multi-stage filtration water quality on-line monitoring device, which comprises a shell, a water inlet pipe, a self-priming water inlet pump, a multi-stage filtration assembly, a filtration water pump, a monitoring box, a water quality sensor, a drain pipe and a control module, wherein the shell is provided with a water inlet pipe and a water outlet pipe;
the self-priming water inlet pump, the multistage filtering assembly, the filtering water pump, the monitoring box, the water quality sensor and the control module are arranged in the closed cavity;
the multistage filtering component is provided with at least two filtering nets with different pore diameters and is used for multistage filtering, and the multistage filtering component is provided with a water inlet port and a water outlet port; the monitoring box is internally provided with a monitoring pool;
one end of the water inlet pipe is connected with a water inlet port of the multistage filtering assembly through the self-priming water inlet pump, the other end of the water inlet pipe penetrates through the wall of the shell and is positioned on the outer side of the closed cavity, a water outlet port of the multistage filtering assembly is communicated with the monitoring pool through the filtering water pump, a probe of the water quality sensor is arranged in the monitoring pool and is used for monitoring water filtered by the multistage filtering assembly, one end of the drain pipe is communicated with the monitoring pool, and the other end of the drain pipe penetrates through the wall of the shell and is positioned on the outer side of the closed cavity;
the control module is connected with the self-suction water inlet pump, the filtering water pump and the water quality sensor, and the control module is used for receiving water quality data detected by the water quality sensor.
In the scheme, the multi-stage filtration water quality on-line monitoring device is integrated design equipment which can be independently installed on the inner wall of an underground pipe network or the ground according to field conditions and is used for on-line water quality detection. The water inlet pipe can be communicated with the water body to be detected through an external pipeline. The operation mode of the multi-stage filtration water quality on-line monitoring device can be that the control module controls the self-priming water inlet pump and the filtering water pump to work to generate negative pressure, sewage enters the multi-stage filtration assembly through the external pipeline and the water inlet pipe, after multi-stage filtration (filtration through filter screens with different apertures according to the sequence) is realized, solid particles in the sewage are effectively separated, the filtered sewage enters the monitoring pool, so that the water quality sensor can safely and accurately detect the water in the monitoring pool, the probe is prevented from being directly influenced by the solid particles in the sewage, the detected water quality data is fed back to the control module, the control module can store the water quality data or transmit the water quality data to the control room through the data transmission module, and the detected water can be discharged through the water discharge pipe.
According to some embodiments of this application, the multiple stage filtration subassembly includes communicating pipe and two filtering mechanism, and two filtering mechanism are one-level filtering mechanism and second grade filtering mechanism respectively, the aperture of one-level filtering mechanism's filter screen is greater than second grade filtering mechanism's filter screen, one-level filtering mechanism with second grade filtering mechanism passes through communicating pipe and communicates each other, one-level filtering mechanism with connect from inhaling the water pump, second grade filtering mechanism with it connects to filter the water pump.
According to some embodiments of the present application, the filter mechanism comprises a filter cartridge and the filter screen, the filter screen is cylindrical and disposed in the filter cartridge, and a clear water chamber is formed between the filter screen and the filter cartridge;
one end of the communicating pipe is communicated with the clear water cavity of the primary filtering mechanism, and the other end of the communicating pipe is communicated with the inner cavity of the filter screen of the secondary filtering mechanism.
According to some embodiments of the present application, the first filter mechanism has a mesh size of 1 to 10mm, and the second filter mechanism has a mesh size of 0.45 to 100 μm.
According to some embodiments of the present application, the filter mechanism further comprises a self-cleaning brush and a motor, the self-cleaning brush is disposed in the filter screen, and the motor drives the self-cleaning brush to rotate in the filter screen.
According to some embodiments of the application, be provided with the wave weir in the monitoring box, the wave weir will the internal partitioning of monitoring box is first cavity and second cavity, water quality sensor's probe is in the second cavity, the filtration water pump intercommunication first cavity, the wave weir be used for make by the water direct impact of filtration water pump drainage the probe.
According to some embodiments of the present application, the wave-proof weir is plate-shaped and extends from the top wall of the monitoring box to the bottom wall of the monitoring box along the height direction of the monitoring box, and the wave-proof weir is spaced from the bottom wall;
the filtering water pump penetrates through the top wall of the monitoring box through a pipeline and is communicated with the first chamber.
According to some embodiments of the application, the drain pipe comprises an overflow pipe and a drain pipe, one end of the overflow pipe is arranged on the side wall of the monitoring box and communicated with the second chamber, and the other end of the overflow pipe is communicated with the drain pipe;
one end of the drain pipe is arranged on the bottom wall of the monitoring box and communicated with the inside of the monitoring box, the other end of the drain pipe penetrates out of the shell and is positioned on the outer side of the closed cavity, and the drain pipe is provided with a drain valve.
According to some embodiments of the application, the water quality sensor comprises at least one of a COD sensor, an ammonia nitrogen sensor, a total phosphorus sensor, a total nitrogen sensor, a conductivity sensor, a dissolved oxygen sensor, a turbidity sensor, or a suspended matter concentration sensor.
According to some embodiments of the application, the control module is configured with a wireless communication module for transmitting the received water quality data.
Compared with the prior art, the method has the following advantages:
(1) The multi-stage filtration water quality online monitoring device can adopt an integrated design, meets IP68 waterproof standards, utilizes a water pump to pump a water body to be detected into the device for detection, can be arranged at the top of an inspection well or in a ground control cabinet, effectively reduces the risk of water soaking of the device when waterlogging occurs, can realize online long-time operation, and does not need manual maintenance;
(2) The multistage filtering component is used for performing multistage filtering on the sewage, the aperture of the filter screen of the two-stage filtering mechanism can be changed according to monitoring requirements, for example, when the secondary filter screen is set to be 0.45 mu m, the device can remove all particle impurities, finally, the dissolved pollution index is monitored, and the detection accuracy and the service life of the device are improved;
(3) The whole water quality on-line monitoring device is in linkage control of on-line water quality monitoring and filter screen cleaning maintenance by a water pump, a filter screen, an automatic cleaning brush, a water quality sensor and a drain valve;
(4) The device can be used to the arbitrary monitoring node of city factory network river lake system, provides stable, unified monitoring environment, ensures the accuracy and the parallelism of all point location data, promotes wisdom system operation scheduling efficiency by a wide margin.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a front view of a hidden part of a multi-stage filtration water quality on-line monitoring device in some embodiments of the present application;
FIG. 2 is an axonometric view of a hidden part structure of the multi-stage filtration water quality on-line monitoring device in some embodiments of the present application.
Icon: 10-a housing; 11-a water inlet pipe; 12-self-priming intake pump; 13-a multi-stage filtration module; 130-a screen; 131-a communicating tube; 132-a filtration cassette; 133-self-cleaning brush; 134-a motor; 13 a-a primary filtration mechanism; 13 b-a secondary filtration mechanism; 14-a filtration water pump; 15-a monitoring box; 150-a monitoring pool; 151-wave-preventing weir; 16-a water quality sensor; 170-overflow pipe; 171-a sewage draining pipe; 173-a blowdown valve; and 18-a control module.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present application, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, refer to the orientation or positional relationship as shown in the drawings, or as conventionally placed in use of the product of the application, or as conventionally understood by those skilled in the art, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be considered as limiting the present application.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The technical solution in the present application will be described below with reference to the accompanying drawings.
Referring to fig. 1 and 2, fig. 1 is a front view of a hidden part structure of a multi-stage filtration water quality on-line monitoring device in some embodiments of the present application, and fig. 2 is an isometric view of the hidden part structure of the multi-stage filtration water quality on-line monitoring device in some embodiments of the present application.
The multi-stage filtration water quality on-line monitoring device comprises a shell 10, a water inlet pipe 11, a self-priming water inlet pump 12, a multi-stage filtration assembly 13, a filtration water pump 14, a monitoring box 15, a water quality sensor 16, a drain pipe and a control module 18.
The interior of the housing 10 has a closed chamber in which a self-priming intake pump 12, a multi-stage filtration assembly 13, a filtration water pump 14, a monitoring box 15, a water quality sensor 16, and a control module 18 are disposed. The housing 10 may be formed by a housing and a cover plate, as shown in fig. 1 and 2, only the housing is shown, the cover plate is hidden, when assembling, the self-priming water inlet pump 12, the multi-stage filtering component 13, the filtering water pump 14, the monitoring box 15, the water quality sensor 16 and the control module 18 may be assembled in the housing, and then the cover plate is covered and integrated with the housing by welding, bonding or other methods, so that the housing 10 meets the IP68 waterproof standard.
The multi-stage filter assembly 13 has at least two screens 130 with different apertures for multi-stage filtering, and the multi-stage filter assembly 13 has a water inlet port and a water outlet port. The multi-stage filtration means that sewage can pass through the filter screens 130 with different apertures one by one to ensure filtration of floating impurities or particulate matters in the sewage, reduce the influence of the floating impurities or the particulate matters on the water quality sensor 16 in the multi-stage filtration water quality on-line monitoring device, ensure the accuracy and stability of data results, ensure the safety of the water quality sensor 16 and prolong the service life of the water quality sensor.
The monitoring box 15 has a monitoring cell 150 inside. The one end of inlet tube 11 is through the inlet port who connects multistage filter assembly 13 from inhaling intake pump 12, the other end of inlet tube 11 is worn out the wall of shell 10 and is located the outside of closed chamber, the outlet port of multistage filter assembly 13 passes through filtration water pump 14 intercommunication monitoring pond 150, water quality sensor 16's probe is located and is used for monitoring the water after multistage filter assembly 13 filters in monitoring pond 150, the one end intercommunication monitoring pond 150 of drain pipe, the other end of drain pipe passes the wall of shell 10 and is located the outside of closed chamber. The control module 18 is connected to the self-priming water inlet pump 12, the filtration water pump 14 and the water quality sensor 16, and the control module 18 is configured to receive water quality data detected by the water quality sensor 16.
In the scheme, the multistage filtering water quality on-line monitoring device is integrated design equipment, and can be independently installed on the inner wall of an underground pipe network or the ground according to field conditions (the ground installation mode is adopted, so that the potential safety hazard of limited space operation can be effectively avoided), and the water quality detection is carried out on line. The water inlet pipe 11 can be communicated with the water body to be detected through an external pipeline. The operation mode of the multi-stage filtration water quality on-line monitoring device can be that the control module 18 controls the self-priming water inlet pump 12 and the filtration water pump 14 to work to generate negative pressure, sewage enters the multi-stage filtration assembly 13 through the external pipeline and the water inlet pipe 11, after multi-stage filtration is realized through multiple times of filtration (filtration through the filter screens 130 with different apertures according to the sequence), solid particles in the sewage are effectively separated, the filtered sewage enters the monitoring pool 150, so that the water quality sensor 16 can safely and accurately detect the water in the monitoring pool 150, the probe is prevented from being directly influenced by solid particles in the sewage, the detected water quality data is fed back to the control module 18, the control module 18 can store the water quality data or transmit the water quality data to a control room through the data transmission module, and the detected water can be discharged through the water discharge pipe.
According to some embodiments of the present application, as shown in fig. 1, the multi-stage filtering assembly 13 includes a communicating pipe 131 and two filtering mechanisms, the two filtering mechanisms are a first-stage filtering mechanism 13a and a second-stage filtering mechanism 13b, respectively, the aperture of the filter screen 130 of the first-stage filtering mechanism 13a is larger than that of the filter screen 130 of the second-stage filtering mechanism 13b, the first-stage filtering mechanism 13a and the second-stage filtering mechanism 13b are communicated with each other through the communicating pipe 131, the first-stage filtering mechanism 13a is connected to the self-priming water inlet pump 12, and the second-stage filtering mechanism 13b is connected to the filtering water pump 14.
In the above scheme, the self-priming intake pump 12 pumps external sewage into the first-stage filtering mechanism 13a, the first-stage filtering mechanism 13a filters and separates large-particle-size particles in the sewage, then the sewage enters the second-stage filtering mechanism 13b, solid particles with small particle sizes are separated out in the second-stage filtering mechanism 13b, finally, the sewage which is not mixed with the solid particles or is mixed with a small amount of solid particles and small particle sizes enters the monitoring pool 150 under the action of the filter pump 14, the safety of the water quality sensor 16 is ensured, and the water quality sensor 16 is ensured to effectively detect the sewage.
According to some embodiments of the present application, in fig. 1 and 2, one of the walls of the filter cartridge 132 is hidden to enable the presentation of the screen 130 within the filter cartridge 132. The filtering mechanism comprises a filtering box 132 and a filtering net 130, wherein the filtering net 130 is cylindrical and is arranged in the filtering box, and a clear water cavity is formed between the filtering net 130 and the filtering box. One end of the communicating pipe 131 is communicated with the clean water chamber of the first-stage filtering mechanism 13a, and the other end of the communicating pipe 131 is communicated with the inner chamber of the filter screen 130 of the second-stage filtering mechanism 13 b.
In the above scheme, the self-priming water inlet pump 12 is communicated with the inner cavity of the filter screen 130 of the primary filtering mechanism 13a through a pipeline, solid particles are intercepted in the filter screen 130, filtered sewage enters the secondary filtering mechanism 13b through the communicating pipe 131, the same solid particles are intercepted in the filter screen 130 of the secondary filtering mechanism 13b, and the filtered sewage enters the monitoring tank 150 through the filtering water pump 14.
According to some embodiments of the present disclosure, the aperture of the screen 130 of the primary filtering mechanism 13a is 1-10 mm, and in some embodiments, the aperture of the screen 130 of the primary filtering mechanism 13a may be 1mm, 2mm, 3mm \8230; 7mm, 8mm, 9mm, or 10mm.
The pore size of the filter mesh 130 of the secondary filtering means 13b is 0.45 to 100 μm, and in some embodiments, the pore size of the filter mesh 130 of the secondary filtering means 13b may be 0.45 μm, 0.50 μm, 0.55 μm, 0.60 μm, 823098.5 μm, 99.0 μm, 99.5 μm, or 100 μm.
In some embodiments, the pore size of the primary filter mechanism 13a and the secondary filter mechanism 13b may be varied according to monitoring requirements, such as in one case, the pore size of the screen 130 of the primary filter mechanism 13a is 1mm and the pore size of the screen 130 of the secondary filter mechanism 13b is 0.45 μm. In another case, the mesh size of the screen 130 of the primary filter means 13a is 5mm, and the mesh size of the screen 130 of the secondary filter means 13b is 50 μm.
According to some embodiments of the present application, the filter mechanism further comprises a self-cleaning brush 133 (a shaft of the self-cleaning brush 133 connected to a motor 134 is shown in fig. 1) and a motor 134, the self-cleaning brush 133 being arranged within the sieve 130, the motor 134 driving the self-cleaning brush 133 to rotate within the sieve 130.
In the above-mentioned solution, the self-cleaning brush 133 may rotate along the axis of the filter net 130, and when the motor 134 is operated to rotate the self-cleaning brush 133, the self-cleaning brush 133 may remove solid particles jammed on the filter net 130. In some embodiments, the motor 134 may be disposed at a top wall of the filter cartridge 132, and the self-cleaning brush 133 has a shaft that passes through the top wall to connect with the motor 134. In some embodiments, the bottom wall of the filter cartridge 132 may be configured with a particle discharge conduit that communicates with the interior cavity of the screen 130, and a valve is provided on the particle discharge to allow solid particles deposited in the screen 130 to be discharged out of the enclosed chamber when the valve is opened. The valve can be connected with the control module, and the opening and the closing are controlled by the control module.
According to some embodiments of the present application, one wall of the monitoring box 15 is hidden in fig. 1 and 2 to show the internal structure of the monitoring box 15, as in fig. 1 and 2.
The wave-proof weir 151 is arranged in the monitoring box 15, the wave-proof weir 151 divides the interior of the monitoring box 15 into a first cavity and a second cavity, the probe of the water quality sensor 16 is positioned in the second cavity, the filter water pump 14 is communicated with the first cavity, and the wave-proof weir 151 is used for manufacturing a direct water impact probe discharged by the filter water pump 14.
In the above-mentioned scheme, through setting up wave-proof weir 151, on the one hand, can prevent sewage direct impact probe, guarantee the security of probe, on the other hand, can slow down sewage flowing water for quality of water sensor 16 detects quality of water steadily, improves the detection accuracy.
According to some embodiments of the present application, the wave weir 151 has a plate shape and extends from the top wall of the monitoring box 15 to the bottom wall of the monitoring box 15 in the height direction of the monitoring box 15, and the wave weir 151 is spaced apart from the bottom wall. The filtration water pump 14 is connected to the first chamber through a pipe passing through the top wall of the monitoring box 15.
According to some embodiments of the present application, the drain pipe includes an overflow pipe 170 and a drain 171, one end of the overflow pipe 170 is disposed at the sidewall of the monitoring box 15 and communicates with the second chamber, and the other end of the overflow pipe 170 communicates with the drain 171. One end of the drainage pipe 171 is arranged on the bottom wall of the monitoring box 15 and communicated with the inside of the monitoring box 15, the other end of the drainage pipe 171 penetrates out of the outer shell 10 and is positioned outside the closed cavity, and the drainage pipe 171 is provided with a drainage valve 173.
In some embodiments, the blowdown valve 173 may be controlled by the control module 18 to achieve linkage with the self-priming inlet pump 12, the filtered water pump 14, and the water quality sensor 16, for example, after the control module 18 controls the self-priming inlet pump 12, the filtered water pump 14, and the water quality sensor 16 to be turned on for a certain period of time and the water quality data is acquired, the blowdown valve 173 may be controlled to be turned on to discharge the sewage.
According to some embodiments of the present application, water quality sensor 16 includes at least one of a COD sensor, an ammonia nitrogen sensor, a total phosphorus sensor, a total nitrogen sensor, a conductivity sensor, a dissolved oxygen sensor, a turbidity sensor, or a suspended matter concentration sensor.
In the above scheme, the water quality sensor 16 can directly adopt a COD sensor, an ammonia nitrogen sensor, a total phosphorus sensor, a total nitrogen sensor, a conductivity sensor, a dissolved oxygen sensor, a turbidity sensor or a suspended matter concentration sensor in the prior art.
According to some embodiments of the present application, the control module 18 is configured with a wireless communication module for transmitting the received water quality data.
In some embodiments, the control module 18 may send the water quality data to a terminal of an operator, such as a mobile phone, a tablet, or a computer, via the wireless communication module. In some embodiments, the operator may control the control module 18 to send the water quality data to the operator's terminal via the wireless communication module.
When the device is used independently, the electric equipment of the whole device adopts 12-24V low-voltage direct-current electric equipment, so that the running electricity utilization safety in an actual scene is guaranteed, and lithium batteries or solar energy can be adopted for supplying electricity. When the device is used with other electrical equipment in an integrated manner, 220-380V alternating current electrical equipment can be selected and matched, and the device is convenient to manufacture, process, install and use on site.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A multi-stage filtration water quality on-line monitoring device is characterized by comprising a shell, a water inlet pipe, a self-priming water inlet pump, a multi-stage filtration assembly, a filtration water pump, a monitoring box, a water quality sensor, a drain pipe and a control module;
the self-priming water inlet pump, the multistage filtering assembly, the filtering water pump, the monitoring box, the water quality sensor and the control module are arranged in the closed cavity;
the multistage filtering component is provided with at least two filtering nets with different pore diameters and is used for multistage filtering, and the multistage filtering component is provided with a water inlet port and a water outlet port; the monitoring box is internally provided with a monitoring pool;
one end of the water inlet pipe is connected with a water inlet port of the multistage filtering assembly through the self-priming water inlet pump, the other end of the water inlet pipe penetrates through the wall of the shell and is positioned on the outer side of the closed cavity, a water outlet port of the multistage filtering assembly is communicated with the monitoring pool through the filtering water pump, a probe of the water quality sensor is arranged in the monitoring pool and is used for monitoring water filtered by the multistage filtering assembly, one end of the drain pipe is communicated with the monitoring pool, and the other end of the drain pipe penetrates through the wall of the shell and is positioned on the outer side of the closed cavity;
the control module is connected with the self-suction water inlet pump, the filtering water pump and the water quality sensor, and the control module is used for receiving water quality data detected by the water quality sensor.
2. The multi-stage filtration water quality on-line monitoring device according to claim 1,
the multistage filtering component comprises a communicating pipe and two filtering mechanisms, wherein the two filtering mechanisms are respectively a first-stage filtering mechanism and a second-stage filtering mechanism, the aperture of the filter screen of the first-stage filtering mechanism is larger than that of the second-stage filtering mechanism, the first-stage filtering mechanism and the second-stage filtering mechanism are mutually communicated through the communicating pipe, the first-stage filtering mechanism is connected with the self-suction water inlet pump, and the second-stage filtering mechanism is connected with the filtering water pump.
3. The multi-stage filtration water quality on-line monitoring device according to claim 2,
the filter mechanism comprises a filter box and the filter screen, the filter screen is cylindrical and is arranged in the filter box, and a clear water cavity is formed between the filter screen and the filter box;
one end of the communicating pipe is communicated with the clear water cavity of the primary filtering mechanism, and the other end of the communicating pipe is communicated with the inner cavity of the filter screen of the secondary filtering mechanism.
4. The multi-stage filtration water quality on-line monitoring device according to claim 3,
the aperture of the filter screen of the first-stage filtering mechanism is 1-10 mm, and the aperture of the filter screen of the second-stage filtering mechanism is 0.45-100 mu m.
5. The multi-stage filtration water quality on-line monitoring device according to claim 3,
the filter mechanism further comprises a self-cleaning brush and a motor, the self-cleaning brush is arranged in the filter screen, and the motor drives the self-cleaning brush to rotate in the filter screen.
6. The multi-stage filtration water quality on-line monitoring device according to claim 1,
the water quality monitoring device is characterized in that a wave-proof weir is arranged in the monitoring box, the wave-proof weir divides the interior of the monitoring box into a first cavity and a second cavity, a probe of the water quality sensor is located in the second cavity, the filtering water pump is communicated with the first cavity, and the wave-proof weir is used for making direct impact on the probe by water discharged by the filtering water pump.
7. The multi-stage filtration water quality on-line monitoring device according to claim 6,
the wave-proof weir is plate-shaped, extends from the top wall of the monitoring box to the bottom wall of the monitoring box along the height direction of the monitoring box, and is arranged at intervals with the bottom wall;
the filtering water pump penetrates through the top wall of the monitoring box through a pipeline and is communicated with the first chamber.
8. The multi-stage filtration water quality on-line monitoring device according to claim 6,
the drain pipe comprises an overflow pipe and a drain pipe, one end of the overflow pipe is arranged on the side wall of the monitoring box and communicated with the second cavity, and the other end of the overflow pipe is communicated with the drain pipe;
one end of the drain pipe is arranged on the bottom wall of the monitoring box and communicated with the inside of the monitoring box, the other end of the drain pipe penetrates out of the shell and is positioned on the outer side of the closed cavity, and the drain pipe is provided with a drain valve.
9. The multi-stage filtration water quality on-line monitoring device according to claim 1,
the water quality sensor comprises at least one of a COD sensor, an ammonia nitrogen sensor, a total phosphorus sensor, a total nitrogen sensor, a conductivity sensor, a dissolved oxygen sensor, a turbidity sensor or a suspended matter concentration sensor.
10. The multi-stage filtration water quality on-line monitoring device according to any one of claims 1 to 9,
the control module is provided with a wireless communication module and is used for transmitting the received water quality data.
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