Multistage purification equipment for black and odorous water body treatment

Abstract

The invention relates to multistage purification equipment for black and odorous water treatment in the field of water purification equipment, which comprises a plurality of purification groups, each purification group comprises a sewage input pipe and a sewage output pipe, and a multidirectional purification structure is connected between the sewage input pipe and the sewage output pipe. The output end of the sewage input pipe is provided with an independent output pipe and a main output pipe through a three-way electromagnetic valve; the multi-stage purification structure comprises a sealing shell, an adjusting disc is rotationally connected in the sealing shell, a servo motor matched with the adjusting disc is mounted on the sealing shell, a plurality of uniformly distributed mounting holes are formed in the adjusting disc, and filter elements are mounted in the mounting holes; an auxiliary loading and unloading structure and a loading and unloading structure matched with the filter element are respectively mounted at the upper and lower ends of the sealing shell; functions of single-filter-element filtration, multi-filter-element simultaneous filtration or multi-stage filter element stage-by-stage filtration can be conveniently switched according to purification work requirements, the output water quality is monitored in the purification process, so that the filter elements with reduced filtration effects can be rapidly switched, and the filter element unloading process is automatically carried out.

Description

Technical Field

[0001] The present invention relates to a multi-stage purification device for treating a black and smelly water body, and in particular to a multi-stage purification device for treating a black and smelly water body applied in the field of water purification equipment. Background Art

[0002] Existing purification equipment for black and odorous water treatment is mainly based on a combination of physical, chemical and biological technologies to achieve effective removal of pollutants in water. Physical technologies include sedimentation, filtration and adsorption, etc., which remove suspended matter and some soluble pollutants in water by physical methods.

[0003] At present, a combination of multiple technologies is usually used to treat black and odorous water bodies to achieve better purification effects. In practical applications, these devices and methods need to be selected and optimized according to the specific water quality conditions and treatment goals to ensure treatment effects and economic efficiency.

[0004] In order to solve the problem of black and odorous water treatment efficiency, a certain treatment equipment in the market adopts the design of ultrasonic vibration device and has a certain market share.

[0005] The specification of Chinese invention patent CN115159666A discloses a device for treating black and smelly water. It includes an air circuit, a water circuit, and a high-pressure gas dissolving tank. A hollow fiber membrane assembly or a vortex tube is installed in the high-pressure gas dissolving tank, and a high-voltage electrode is arranged on the gas circuit pipeline; the upper part of the high-pressure gas dissolving tank is connected to the gas circuit pipeline and the water circuit pipeline respectively; the lower part of the high-pressure gas dissolving tank is connected to an ultrasonic vibration device through a pipeline, the ultrasonic vibration device is connected to the oxygenated water outlet pipeline, and the oxygenated water outlet pipeline is connected to a discharge pipe. The invention adopts three methods of hollow fiber membrane, vortex tube and ultrasonic cavitation to prepare high-concentration dissolved oxygen water, and injects the high-concentration dissolved oxygen water into the black and smelly water body to be treated through a cyclone discharge pipe, which quickly and evenly improves the solubility of oxygen in the water body, improves the activity of microorganisms, and reduces pollutant indicators.

[0006] The existing products of water purification equipment have a fixed structure, which is not convenient to adjust according to changes in water quality and treatment requirements. In addition, the filter element in the purification equipment is inconvenient to replace and maintain, and it is not easy to replace it in time when it is saturated or blocked. Summary of the invention

[0007] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the structure of the purification equipment for water treatment of existing products is fixed, which is inconvenient to adjust according to changes in water quality and treatment requirements, and the filter element in the purification equipment is inconvenient to replace and maintain, and it is not easy to replace it in time when it is saturated with adsorption or blocked.

[0008] In order to solve the above problems, the present invention provides a multi-stage purification device for treating black and odorous water bodies, comprising a plurality of purification groups, the purification groups comprising a sewage input pipe and a sewage output pipe, a multi-directional purification structure is connected between the sewage input pipe and the sewage output pipe, and an independent output pipe and a total output pipe are installed at the output end of the sewage input pipe through a three-way solenoid valve;

[0009] The multi-stage purification structure includes a sealing shell, an adjusting disk is rotatably connected in the sealing shell, a servo motor matching the adjusting disk is installed on the sealing shell, a plurality of evenly distributed mounting holes are opened on the adjusting disk, and a filter element is installed in the mounting hole; the filter element includes a pair of cover plates, a filter cartridge is fixedly connected between the pair of cover plates, a partition ring is fixedly connected in the filter cartridge, a sealing plug is clamped in the middle of the partition ring, a guide tube is plugged into one of the cover plates, a pair of brackets are fixedly connected to the top of the cover plate, and a clamping plate matching the bracket is installed at the opening of the mounting hole;

[0010] The upper and lower ends of the sealing shell are respectively equipped with an auxiliary loading and unloading structure and a loading and unloading structure that match the filter element; the auxiliary loading and unloading structure includes a stepping motor symmetrically arranged with the loading and unloading structure, an electric push rod is rotatably connected to the sealing shell, and the telescopic end of the electric push rod is rotatably connected to a push plate that matches the filter element, and a transmission belt is connected between the stepping motor and the electric push rod;

[0011] The loading and unloading structure includes a fixed tube fixedly connected to the sealing shell, a movable plug is inserted in the fixed tube, a cylinder is installed at the bottom end of the movable plug, a loading and unloading hole matching the filter element is opened on the lower side wall of the fixed tube, a cleaning pool is arranged between the multiple purification groups, and a guide rail matching the position of the loading and unloading structure is installed on the cleaning pool.

[0012] In the above-mentioned multi-stage purification equipment for treating black and odorous water bodies, the filter element can be quickly replaced, and one or more filter elements can be conveniently used for purification work.

[0013] As a further improvement of the present application, a liquid storage chamber is provided in the mounting hole, and a liquid level sensor is installed in the liquid storage chamber. When the filter element works normally, the liquid level in the liquid storage chamber is maintained within a set height range;

[0014] When the liquid level in the liquid storage chamber is higher than the set value, it is determined that the filter element at that position needs to be replaced.

[0015] As a further improvement of the present application, a guide hole is provided between two adjacent mounting holes, and the guide hole is located at the upper end of the filter element, and a stop valve is installed in the guide hole.

[0016] As a further improvement of the present application, an independent output pipe and a main output pipe are installed at the output end of the sewage inlet pipe through a three-way solenoid valve. The independent output pipe includes a shunt pipe installed on a sealing shell. One end of the shunt pipe located inside the sealing shell is sleeved with a docking pipe. An electric telescopic rod connected to the docking pipe is installed on the sealing shell. The output end of the main output pipe is located at the upper side end of the sealing shell.

[0017] As a further improvement of the present application, a docking groove is provided on the sealing cover, and docking blocks matching the docking groove are installed on both the push plate and the movable plug.

[0018] As another improvement of the present application, a diversion pipe is connected between the cleaning pool and the sewage input pipe, a liquid pump is connected to the diversion pipe, a plurality of branch pipes respectively connected to the plurality of sewage input pipes are connected to the diversion pipe, and a water quality detection device is installed in the cleaning pool.

[0019] As another improvement of the present application, an electric gate for closing the opening of the fixed pipe is rotatably connected in the sealing shell. When the electric gate is opened, the filter element separated from the regulating disk can fall into the fixed pipe.

[0020] As another improvement of the present application, a purification auxiliary system is also included, the purification auxiliary system includes a processor, and the processor is connected to a control module, a data processing module and a monitoring module;

[0021] The control module is used to control the operation of the servo motor, stepper motor, cylinder, stop valve and three-way solenoid valve;

[0022] The monitoring module is used to collect monitoring data, including water quality and flow rate at the sewage input pipe and sewage output pipe and monitoring data of the liquid level sensor. Water quality detection sensors are installed in the sewage input pipe and sewage output pipe;

[0023] The data processing module is used to process and analyze the monitoring data, and determine whether the filter element needs to be replaced based on the data analysis results.

[0024] As another improvement of the present application, when installing the filter element, after the filter element is installed into the loading and unloading hole, the movable plug on the loading and unloading structure holds the filter element, and then the cylinder is controlled to work so that the filter element is pushed into the installation hole and matches the position of the clamping plate, and then the electric push rod on the auxiliary loading and unloading structure works so that the push plate is clamped with the top of the filter element, and the stepper motor drives the electric push rod to rotate, thereby rotating the filter element to a set angle, so that the clamping plate is clamped into the bracket on the cover plate.

[0025] In summary, this solution is convenient for switching the functions of single filter element, simultaneous filtration of multiple filter elements, or step-by-step filtration of multi-stage filter elements according to the needs of purification work, and the output water quality is monitored during the purification process to quickly switch the filter element with reduced filtration effect. The filter element unloading process is automated, which is easy to save labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional diagram of the purification group of the first and second embodiments of the present application;

[0027] Figure 2 It is a cross-sectional view of the purification group of the first and second embodiments of the present application;

[0028] Figure 3 for Figure 2 The structural diagram at A in the middle;

[0029] Figure 4 This is a partial cross-sectional view of the guide pipe in the filter element of the second embodiment of the present application when it is installed on the upper cover plate;

[0030] Figure 5 This is a cross-sectional view of the adjustment disk of the first and second embodiments of the present application;

[0031] Figure 6 This is a schematic diagram of the water flow path when two filter elements perform multi-stage filtration in the second embodiment of the present application;

[0032] Figure 7 This is a schematic diagram of the installation of multiple purification groups in the first and second embodiments of the present application;

[0033] Figure 8 This is a three-dimensional diagram of the cover plate of the first and second embodiments of the present application.

[0034] Description of the numbers in the figure:

[0035] 1 sewage input pipe, 11 independent output pipe, 12 total output pipe, 2 sewage output pipe, 3 sealing shell, 4 adjusting disk, 41 liquid storage chamber, 42 stop valve, 5 filter element, 51 cover plate, 52 guide pipe, 53 filter cartridge, 54 partition ring, 6 auxiliary loading and unloading structure, 61 stepping motor, 62 electric push rod, 63 push plate, 7 loading and unloading structure, 71 fixed pipe, 72 cylinder, 73 movable plug, 8 cleaning tank. DETAILED DESCRIPTION

[0036] The following is a detailed description of three implementation methods of the present application in conjunction with the accompanying drawings.

[0037] The first implementation method:

[0038] Figure 1-8 A multi-stage purification device for treating black and odorous water bodies is shown, comprising a plurality of purification groups, wherein the purification groups comprise a sewage input pipe 1 and a sewage output pipe 2, and a multi-directional purification structure is connected between the sewage input pipe 1 and the sewage output pipe 2;

[0039] The multi-stage purification structure includes a sealing shell 3, an adjusting disk 4 is rotatably connected inside the sealing shell 3, a servo motor matching the adjusting disk 4 is installed on the sealing shell 3, a plurality of evenly distributed mounting holes are opened on the adjusting disk 4, and a filter element 5 is installed in the mounting hole;

[0040] The upper and lower ends of the sealing shell 3 are respectively installed with an auxiliary loading and unloading structure 6 and a loading and unloading structure 7 that match the filter element 5; the auxiliary loading and unloading structure 6 includes a stepper motor 61 symmetrically arranged with the loading and unloading structure 7, the stepper motor 61 is installed on the outer wall of the sealing shell 3, the sealing shell 3 is rotatably connected with an electric push rod 62, the telescopic end of the electric push rod 62 is rotatably connected with a push plate 63 that matches the filter element 5, a transmission belt is connected between the power output end of the stepper motor 61 and the fixed end of the electric push rod 62, and the stepper motor 61 drives the electric push rod 62 to rotate when working;

[0041] The output end of the sewage input pipe 1 is installed with an independent output pipe 11 and a total output pipe 12 through a three-way solenoid valve. The independent output pipe 11 includes a shunt pipe installed on the sealed shell 3. One end of the shunt pipe located in the sealed shell 3 is sleeved with a butt pipe. An electric telescopic rod connected to the butt pipe is installed on the sealed shell 3. The output end of the total output pipe 12 is located at the upper part of the side end of the sealed shell 3. When the electric telescopic rod is working, it pushes the butt pipe to dock with the input end of the filter element 5, so that the sewage is only input into one filter element 5. When the total output pipe 12 inputs sewage, the sewage flows into the upper space of the regulating disk 4. Since the input ends of the filter elements 5 are all in an open state, the sewage can enter all the filter elements 5 on the regulating disk 4 at this time, so that the sewage output by the total output pipe 12 can be filtered simultaneously through multiple filter elements 5.

[0042] The loading and unloading structure 7 includes a fixed tube 71 fixedly connected to the sealing shell 3, a movable plug 73 is inserted in the fixed tube 71, a cylinder 72 is installed at the bottom end of the movable plug 73, a loading and unloading hole matching the filter element 5 is opened on the lower side wall of the fixed tube 71, a cleaning tank 8 is arranged between the multiple purification groups, a guide rail matching the position of the loading and unloading structure 7 is installed on the cleaning tank 8, the input end of the guide rail is connected to the loading and unloading hole, an unloading electric push rod is installed at the bottom end of the fixed tube 71, the unloading electric push rod is used to push the filter element 5 at the loading and unloading hole into the guide rail, and the filter element 5 slides into the cleaning tank 8 along the guide rail; an electric gate for closing the opening of the fixed tube 71 is rotatably connected in the sealing shell 3, and when the electric gate is opened, the filter element 5 separated from the adjusting disk 4 can fall into the fixed tube 71.

[0043] The sealing cover 51 is provided with a docking groove, and both the push plate 63 and the movable plug 73 are provided with docking blocks matching the docking groove.

[0044] A guide pipe is connected between the cleaning pool 8 and the sewage input pipe 1, and a liquid pump is connected to the guide pipe. A plurality of branch pipes respectively connected to the guide pipe are connected to the guide pipe, and a water quality detection device can be installed in the cleaning pool 8, and the technicians in this field can use a suitable water quality detection device to install it. The water quality detection device is used to detect the water quality in the cleaning pool 8. According to the water quality detection results in the cleaning pool 8, the technicians in this field can choose to input the water in the cleaning pool 8 into a suitable purification group.

[0045] When the scheme is working, sewage is input into the sealed shell 3 through the sewage input pipe 1. After the sewage enters the sealed shell 3, it is filtered by the filter element 5 on the regulating disk 4. During the working process of the filter element 5, the water level of the accumulated liquid at the filter element 5 or the water quality at the input and output ends of the sealed shell 3 is monitored to determine whether the filter element 5 is adsorbed saturated.

[0046] When the filter element 5 is saturated or the filtering efficiency of the filter element 5 decreases, the filter element 5 can be replaced. When replacing the filter element 5, first control the servo motor to rotate the adjusting disk 4 so that the filter element 5 to be replaced rotates to the bottom of the auxiliary loading and unloading structure 6, and then the auxiliary loading and unloading structure 6 works, and controls the electric push rod 62 to extend so that the push plate 63 docks with the docking groove on the cover plate 51, and then the stepper motor 61 works to rotate the filter element 5 as a whole until the bracket on the cover plate 51 is separated from the card plate at the mounting hole, and then the electric push rod 62 is further extended to push the filter element 5 downward until it is separated from the adjusting disk 4. During the pushing process, the movable plug 73 is driven to rise, and the filter element 5 falls onto the movable plug 73 after being separated from the adjusting disk 4;

[0047] Then the movable plug 73 is lowered to the initial position, at which time the filter element 5 can be pushed out of the loading and unloading hole by the unloading electric push rod, so that the filter element 5 is unloaded into the cleaning tank 8, and the filter element 5 falls into the cleaning tank 8 to be soaked and pre-rinsed to clean the surface pollution, and the cleaning wastewater in the cleaning tank 8 can be passed through the guide pipe to the purification group for purification treatment;

[0048] In this embodiment, when the filter element is saturated with adsorption, the filter element 5 used for filtering can be switched by rotating the adjustment disk 4 to ensure that the saturated filter element 5 can be replaced in time, which is easy to ensure that the water purification efficiency is not easily reduced;

[0049] Second implementation method:

[0050] Figure 2-6 As shown, a liquid storage chamber 41 is provided in the installation hole, and a liquid level sensor is installed in the liquid storage chamber 41. When the filter element 5 works normally, the liquid level in the liquid storage chamber 41 is maintained within a set height range;

[0051] Optionally, a person skilled in the art may set that when the liquid level in the liquid storage chamber 41 is higher than a set value, it is determined that the filter element 5 at that position needs to be replaced;

[0052] A flow guide hole is provided between two adjacent mounting holes, and the flow guide hole is located at the upper end of the filter element 5, and a stop valve 42 is installed in the flow guide hole;

[0053] The filter element 5 includes a pair of cover plates 51, a filter cartridge 53 is fixedly connected between the pair of cover plates 51, a partition ring 54 is fixedly connected inside the filter cartridge 53, a sealing plug is clamped in the middle of the partition ring 54, a guide tube 52 is plugged into one of the cover plates 51, both upper and lower ends of the guide tube 52 are provided with external threads, a through hole is provided in the middle of the cover plate 51, and an internal thread matching the external thread is provided in the through hole, a pair of brackets are fixedly connected to the top of the cover plate 51, and a clamping plate matching the bracket is installed at the opening of the mounting hole;

[0054] The internal structure of the filter element 5 is adjustable, and the guide pipe 52 can be installed on the cover plate 51 located on the upper side or the lower side through an external thread. Figure 3-6 As shown, when the guide pipe 52 is installed on the upper cover plate 51, a sealing plug is installed in the middle of the lower cover plate 51. At this time, sewage is input into the filter cartridge 53 from the upper side of the filter element 5 through the input guide pipe 52, and then passes through the filter cartridge 53 into the liquid storage chamber 41. At this time, the filter element 5 serves as a sewage input end in the multi-stage filtering operation;

[0055] When the guide tube 52 is installed on the lower cover plate 51, a sealing plug is clamped in the middle of the partition ring 54. At this time, the sewage enters the filter cartridge 53 from the liquid storage chamber 41 and docks in the filter cartridge 53 until the liquid level is higher than the upper end of the guide tube 52 therein, so that the sewage filtered by the filter cartridge 53 enters the guide tube 52 and is discharged to the lower side of the filter element 5.

[0056] After the stop valve 42 is opened, the two adjacent mounting holes thereof are connected, so that the two adjacent filter elements 5 can work in coordination. At this time, the independent output pipe 11 is connected to one filter element 5, and the guide pipes 52 of the filter elements 5 in the two mounting holes are opened at the upper and lower ends respectively;

[0057] The water flows through the multiple filter elements in sequence, so that multiple filter elements 5 are installed on the adjustment disk 4 and multi-stage filtration is performed. It should be noted that when this embodiment is working, an independent output pipe 11 is used for sewage input;

[0058] When the present solution performs multi-stage purification, the multiple filter elements 5 are connected by opening the stop valve 42, and the structure of the installed filter elements 5 is adjusted to achieve the coordinated work of the multiple filter elements 5 in the regulating disk 4, so that the input water flow is graded by the filter elements 5 with different types of filter materials or different pore sizes built in;

[0059] The third implementation method:

[0060] It also includes a purification auxiliary system, which includes a processor, and the processor is connected to a control module, a data processing module and a monitoring module;

[0061] The control module is used to control the operation of the servo motor, the stepper motor 61, the cylinder 72, the stop valve 42 and the three-way solenoid valve;

[0062] The monitoring module is used to collect monitoring data, including the water quality and flow rate at the sewage input pipe 1 and the sewage output pipe 2, and the monitoring data of the liquid level sensor. Water quality detection sensors are installed in the sewage input pipe 1 and the sewage output pipe 2;

[0063] The data processing module is used to process and analyze the monitoring data, and determine whether the filter element 5 needs to be replaced based on the data analysis results;

[0064] The purification auxiliary system realizes real-time monitoring of the sewage input pipe 1 and the sewage output pipe 2 to ensure that the water quality meets the discharge standard; the processor determines whether the filter element 5 needs to be replaced by analyzing the data provided by the monitoring module.

[0065] When the water quality detected at the sewage output pipe 2 is lower than the set value or the water flow rate drops below the set value, it is judged that the filtering efficiency of the corresponding filter element 5 is reduced or the filter element 5 is blocked, and the processor issues an instruction to replace the filter element 5, and drives the filter element 5 to the auxiliary loading and unloading structure 6 through the control module to unload the filter element 5; when the filter element 5 is docked with the docking tube, the docking tube needs to be reset before unloading the filter element 5; when the main output pipe 12 is used for sewage input, when the filter element 5 is unloaded, the servo motor drives the adjustment disk 4 to rotate, so that all the filter elements 5 are rotated to the auxiliary loading and unloading structure 6 in turn to unload the filter element 5;

[0066] The processor will record the frequency and time of filter element 5 replacement to provide data support for subsequent maintenance and filter element replacement.

[0067] The design of the purification auxiliary system not only improves the automation of the purification equipment, but also ensures the stability and reliability of the purification process. Through real-time monitoring and intelligent control, the system can easily ensure that the filter element 5 is replaced in time, ensuring the continuous stability of the effluent water quality.

[0068] In summary, this solution is convenient for switching the functions of single filter element, simultaneous filtration of multiple filter elements, or step-by-step filtration of multi-stage filter elements according to the needs of purification work, and the output water quality is monitored during the purification process to quickly switch the filter element with reduced filtration effect. The filter element unloading process is automated, which is easy to save labor.

[0069] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A multi-stage purification device for treating black and odorous water bodies, comprising a plurality of purification groups, wherein the purification groups include a sewage input pipe (1) and a sewage output pipe (2), characterized in that: A multi-directional purification structure is connected between the sewage input pipe (1) and the sewage output pipe (2); an independent output pipe (11) and a main output pipe (12) are installed at the output end of the sewage input pipe (1) via a three-way solenoid valve; The multi-stage purification structure comprises a sealing shell (3), an adjusting disk (4) is rotatably connected inside the sealing shell (3), a servo motor matching the adjusting disk (4) is installed on the sealing shell (3), a plurality of evenly distributed mounting holes are opened on the adjusting disk (4), a filter element (5) is installed in the mounting hole; the filter element (5) comprises a pair of cover plates (51), a filter cartridge (53) is fixedly connected between the pair of cover plates (51), a partition ring (54) is fixedly connected inside the filter cartridge (53), a sealing plug is clamped in the middle of the partition ring (54), a guide tube (52) is plugged into one of the cover plates (51), a pair of brackets are fixedly connected to the top of the cover plate (51), and a clamping plate matching the brackets is installed at the opening of the mounting hole; An auxiliary loading and unloading structure (6) and a loading and unloading structure (7) matching the filter element (5) are respectively installed at the upper and lower ends of the sealing shell (3); the auxiliary loading and unloading structure (6) comprises a stepping motor (61) symmetrically arranged with the loading and unloading structure (7); an electric push rod (62) is rotatably connected to the sealing shell (3); a push plate (63) matching the filter element (5) is rotatably connected to the telescopic end of the electric push rod (62); and a transmission belt is connected between the stepping motor (61) and the electric push rod (62); The loading and unloading structure (7) comprises a fixed tube (71) fixedly connected to the sealing shell (3), a movable plug (73) is inserted into the fixed tube (71), a cylinder (72) is installed at the bottom end of the movable plug (73), a loading and unloading hole matching the filter element (5) is opened on the lower side wall of the fixed tube (71), a cleaning pool (8) is arranged between the plurality of purification groups, and a guide rail matching the position of the loading and unloading structure (7) is installed on the cleaning pool (8).

2. The multi-stage purification equipment for treating black and smelly water according to claim 1, characterized in that: A liquid storage chamber (41) is provided in the installation hole, and a liquid level sensor is installed in the liquid storage chamber (41). When the filter element (5) works normally, the liquid level in the liquid storage chamber (41) is maintained within a set height range; When the liquid level in the liquid storage chamber (41) is higher than a set value, it is determined that the filter element (5) at that position needs to be replaced.

3. The multi-stage purification equipment for treating black and smelly water according to claim 2, characterized in that: A flow guide hole is provided between two adjacent installation holes, and the flow guide hole is located at the upper end of the filter element (5), and a stop valve (42) is installed in the flow guide hole.

4. The multi-stage purification equipment for treating black and odorous water according to claim 1, characterized in that: The independent output pipe (11) comprises a shunt pipe installed on the sealed shell (3); one end of the shunt pipe located inside the sealed shell (3) is sleeved with a butt joint pipe; an electric telescopic rod connected to the butt joint pipe is installed on the sealed shell (3); and the output end of the main output pipe (12) is located at the upper side end of the sealed shell (3).

5. The multi-stage purification equipment for treating black and smelly water according to claim 1, characterized in that: The sealing cover (51) is provided with a docking groove, and the push plate (63) and the movable plug (73) are both provided with docking blocks matching the docking groove.

6. The multi-stage purification equipment for treating black and smelly water according to claim 1, characterized in that: A guide pipe is connected between the cleaning pool (8) and the sewage input pipe (1), a liquid pump is connected to the guide pipe, and a plurality of branch pipes respectively communicating with the plurality of sewage input pipes (1) are connected to the guide pipe.

7. The multi-stage purification equipment for treating black and odorous water according to claim 1 is characterized in that: An electric gate for closing the opening of the fixed tube (71) is rotatably connected inside the sealing shell (3); when the electric gate is opened, the filter element (5) separated from the regulating disk (4) can fall into the fixed tube (71).

8. The multi-stage purification equipment for treating black and smelly water according to claim 3 is characterized by: It also includes a purification auxiliary system, which includes a processor, and the processor is connected to a control module, a data processing module and a monitoring module; The control module is used to control the operation of the servo motor, the stepper motor (61), the cylinder (72), the stop valve (42) and the three-way solenoid valve; The monitoring module is used to collect monitoring data, the monitoring data including water quality and flow rate at the sewage input pipe (1) and the sewage output pipe (2) and monitoring data of the liquid level sensor, and the sewage input pipe (1) and the sewage output pipe (2) are both installed with water quality detection sensors; The data processing module is used to process and analyze the monitoring data, and to determine whether the filter element (5) needs to be replaced based on the data analysis results.

9. The multi-stage purification equipment for treating black and smelly water according to claim 1, characterized in that: When the filter element (5) is installed, after the filter element (5) is installed into the loading and unloading hole, the movable plug (73) on the loading and unloading structure (7) holds the filter element (5), and then the cylinder (72) is controlled to work so that the filter element (5) is pushed into the installation hole and matches the position of the clamping plate, and then the electric push rod (62) on the auxiliary loading and unloading structure (6) works so that the push plate (63) is clamped with the top end of the filter element (5), and the stepping motor (61) drives the electric push rod (62) to rotate, thereby rotating the filter element (5) to a set angle, so that the clamping plate is clamped into the bracket on the cover plate (51).

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