CN217794693U - Cleaning system of circulation clarifier and sewage treatment system - Google Patents

Abstract

The embodiment of the application provides a cleaning system and sewage treatment system of circulation clarifier, and cleaning system includes: at least one aeration conduit assembly, at least one water discharge conduit assembly, a controller, and at least one loop clarifier cluster; the vent tube assembly includes: an aerodynamic tube and at least one air impingement tube; the loop clarifier group includes: at least one loop clarifier; the loop clarifier includes: the circulation clarifier comprises a circulation clarifier body and a filter piece arranged inside the circulation clarifier body; the air vent pipeline assembly and the drainage pipeline assembly are electrically connected with the controller; in each circulation clarifier group, one end of each air flushing pipe is connected with the filtering piece of each circulation clarifier, and the other end of each air flushing pipe is connected with the same aerodynamic pipe; the drainage pipeline assembly is connected with each circulation clarifier. The embodiment of the application can realize the simultaneous cleaning of the filtering pieces in the multiple circulation clarifiers, and improves the cleaning efficiency of the cleaning system.

Description

Cleaning system of circulation clarifier and sewage treatment system

Technical Field

The application relates to the technical field of sewage treatment, in particular to a cleaning system of a circulating clarifier and a sewage treatment system.

Background

The sedimentation of sewage is one of important links in the sewage treatment process. The circulation clarifying device has the reaction-precipitation integrated function and is widely used in the precipitation process. The circulating clarifier is usually arranged in a sedimentation tank, and the sewage is subjected to reaction sedimentation treatment through the circulating clarifier. In order to increase the treated water quantity of a single circulation clarifier and improve the hydraulic surface load of a settling zone, a filter element is arranged inside a circulation clarifier body.

After the circulation clarifier operates for a period of time, sludge can be adhered to the filter element and algae can be bred to block the filter element, so that the treatment effect of the filter element on sewage is influenced, and the sewage treatment capacity of the circulation clarifier is reduced. Therefore, the filter element needs to be cleaned.

At present, when a filtering piece of a circulation clarifier is cleaned, the sewage treatment operation of the circulation clarifier needs to be suspended, the filtering piece in a single circulation clarifier is cleaned, and the sewage treatment operation of the circulation clarifier is started after the cleaning is finished. The cleaning method has low cleaning capacity, and the water yield of the whole sewage treatment system including the circulation clarifier is low, so that the sewage treatment capacity of the sewage treatment system is reduced.

SUMMERY OF THE UTILITY MODEL

The application provides a cleaning system of a circulation clarifier and a sewage treatment system aiming at the defects of the prior art, and aims to solve the technical problems that the cleaning capacity of the cleaning mode of the circulation clarifier in the prior art is low or the water yield of the whole sewage treatment system is low.

In a first aspect, the present application provides a cleaning system for a circulation clarifier, including: at least one aeration conduit assembly, at least one drain conduit assembly, a controller, and at least one loop clarifier cluster; the air duct assembly includes: an aerodynamic tube and at least one air impingement tube; the loop clarifier group includes: at least one loop clarifier; the loop clarifier includes: the circulation clarifier comprises a circulation clarifier body and a filter piece arranged inside the circulation clarifier body;

the air vent pipeline assembly and the drainage pipeline assembly are both electrically connected with the controller;

in each circulation clarifier group, one end of each air flushing pipe is connected with the filtering piece of each circulation clarifier, and the other end of each air flushing pipe is connected with the same aerodynamic pipe; the drainage pipeline assembly is connected with each circulation clarifier.

Optionally, the washing system further comprises: at least one sedimentation tank;

each circulation clarifier of each circulation clarifier group is arranged in the sedimentation tank;

optionally, the filter element comprises: filling the inclined tube; one end of the air impact pipe extends into a first position in the inclined pipe packing along a first direction; the first direction is from the loop clarifier towards the bottom of the settling tank.

Optionally, the vent tube assembly further comprises: at least one first vent control valve, and a second vent control valve;

the first ventilation control valve and the second ventilation control valve are both electrically connected with the controller;

the first ventilation control valve is arranged between the aerodynamic tube and the air blast tube;

the second ventilating control valve is arranged on the air flushing pipe.

Optionally, the drain pipe assembly comprises: at least one first drain conduit, and a second drain conduit;

one end of each first drainage pipeline is positioned in each circulation clarifier of the corresponding circulation clarifier group, and the other end of each first drainage pipeline is connected with the second drainage pipeline.

Optionally, the drain pipe assembly further comprises: at least one first effluent control valve;

the first water outlet control valve is electrically connected with the controller; the first water outlet control valve is arranged on the first drainage pipeline; one end of the first drainage pipeline extends into the inclined pipe filler along the first direction;

optionally, the drain line assembly further comprises a second water outlet control valve and a siphon device;

the second water outlet control valve is electrically connected with the controller; one end of the second water outlet control valve is connected with the second water drainage pipeline, and the other end of the second water outlet control valve is connected with the siphon device.

Optionally, the drain pipe assembly further comprises: a third water outlet control valve;

the third water outlet control valve is electrically connected with the controller; the first drainage pipeline extends into a second position in the inclined pipe filler; in the first direction, the first position is higher than the second position;

optionally, the drain pipe assembly further comprises: a valve well;

the third water outlet control valve is arranged at the second water drainage pipeline and is positioned in the valve well.

In a second aspect, an embodiment of the present application provides a wastewater treatment system, including: a cleaning system for a loop clarifier as set forth in the first aspect above.

The beneficial technical effects brought by the technical scheme provided by the embodiment of the application comprise:

in the cleaning system of the circulation clarifier provided by the embodiment of the application, each circulation clarifier group is connected with a corresponding ventilation pipeline assembly and a corresponding drainage pipeline assembly. The air duct assembly can convey air flow for cleaning to the filter element of the circulation clarifier to wash away impurities accumulated on the filter element. Specifically, the vent pipe assembly comprises an aerodynamic pipe and a plurality of air blast pipes, wherein one aerodynamic pipe is connected with the filter elements of a plurality of circulation clarifiers in the same circulation clarifier group through a plurality of air blast pipes, so that the filter elements in the plurality of circulation clarifiers can be cleaned simultaneously. When the circulation clarifier is cleaned, the drainage pipeline assembly connected with the circulation clarifier which is expected to be cleaned is closed, other uncleaned circulation clarifiers normally perform sewage treatment operation, water is normally produced, and the water yield of a cleaning system of the circulation clarifier is ensured.

In addition, in the cleaning system of the circulation clarifier provided by the embodiment of the application, a plurality of circulation clarifier groups are not interfered with each other and respectively provided with the corresponding ventilating pipeline assembly and the corresponding drainage pipeline assembly, so that the plurality of circulation clarifier groups can be cleaned simultaneously. The cleaning capacity of the cleaning system of the circulation clarifier is improved.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of a cleaning system of a circulation clarifier according to an embodiment of the present application;

FIG. 2 is a schematic diagram of an alternate cleaning system for a loop clarifier according to an embodiment of the present application;

fig. 3 is a schematic flowchart of a control method of a cleaning system of a circulation clarifier according to an embodiment of the present application.

Reference numerals:

100-a cleaning system;

110-a vent tube assembly; 111-aerodynamic tubes; 112-air blast pipe; 113-a first ventilation control valve; 114-a second vent control valve;

120-a drain pipe assembly; 121-a first drain conduit; 122-a second water drain conduit; 123-a first water outlet control valve; 124-second effluent control valve; 125-siphon means; 126-third effluent control valve; 127-valve well;

130-loop clarifier group; 131-loop clarifier; 1311-a loop clarifier body; 1312-pipe chute filler.

Detailed Description

Embodiments of the present application are described below in conjunction with the drawings in the present application. It should be understood that the embodiments set forth below in connection with the drawings are exemplary descriptions for explaining technical solutions of the embodiments of the present application, and do not limit the technical solutions of the embodiments of the present application.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of other features, information, data, steps, operations, elements, components, and/or groups thereof, that may be implemented as required by the art. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. The term "and/or" as used herein means at least one of the items defined by the term, e.g., "a and/or B" may be implemented as "a", or as "B", or as "a and B".

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

The research and development idea of the application comprises: because the sewage contains sludge or other impurities, after the circulation clarifier is used for carrying out precipitation operation for a period of time, a filtering piece in the circulation clarifier can be adhered with the sludge or algae breeding is increased under impurities such as phosphorus and the like in the sewage to block the filtering piece, the water yield of the filtering piece is influenced, and the sewage treatment effect of the filtering piece is reduced. Therefore, cleaning of the filter elements of the loop clarifier is required. The sewage treatment operation of the circulation clarifier needs to be suspended during cleaning, and the most direct method is to suspend the water outlet of the circulation clarifier so that the circulation clarifier which is being cleaned does not produce water any more. In the related art, the aeration pipe assembly or the drainage pipe assembly of each of the ring clarifiers is controlled such that when the filter element of one ring clarifier is cleaned by the gas flow supplied through the aeration pipe assembly, the corresponding drainage pipe assembly is closed, and the cleaned ring clarifier no longer produces water. The cleaning method has low cleaning capacity, and the water yield of the whole sewage treatment system including the circulation clarifier is low, so that the sewage treatment capacity of the sewage treatment system is reduced.

The application provides a cleaning system of a circulation clarifier and a sewage treatment system, which aim to solve the technical problems in the prior art.

The following describes the technical solution of the present application and how to solve the above technical problems in detail by specific embodiments. It should be noted that the following embodiments may be referred to, referred to or combined with each other.

The embodiment of the present application provides a cleaning system 100 of a circulation clarifier 131, and the structural schematic diagram of the cleaning system 100 of the circulation clarifier 131 is shown in fig. 1 or fig. 2, and includes: at least one aeration conduit assembly 110, at least one drain conduit assembly 120, a controller, and at least one loop clarifier cluster 130. The vent tube assembly 110 includes: an aerodynamic tube 111 and at least one air impingement tube 112. The loop clarifier group 130 includes: at least one loop clarifier 131. The loop clarifier 131 includes: a circulation clarifier body 1311 and a filter disposed inside the circulation clarifier body 1311.

The vent and drain line assemblies 110, 120 are electrically connected to the controller.

In each loop clarifier group 130, one end of each air blast pipe 112 is connected to the filter of each loop clarifier 131, and the other end of each air blast pipe 112 is connected to the same aerodynamic tube 111. The drainline assemblies 120 are connected to each of the loop clarifiers 131.

In the cleaning system 100 of the loop clarifier 131 provided in this embodiment, each loop clarifier group 130 is connected with a corresponding aeration pipe assembly 110 and drainage pipe assembly 120. The air duct assembly 110 is capable of delivering a flow of air for cleaning to the filter elements of the loop clarifier 131 to flush out debris accumulated on the filter elements. Specifically, the aeration conduit assembly 110 includes an aerodynamic tube 111 and air-wash pipes 112, and one aerodynamic tube 111 is connected to the filtration elements of multiple loop clarifiers 131 in the same loop clarifier group 130 through multiple air-wash pipes 112, so that the filtration elements in multiple loop clarifiers 131 can be cleaned simultaneously. During cleaning, the drainage pipeline assembly 120 connected with the circulation clarifier 131 which is expected to be cleaned is closed, and other unwashed circulation clarifiers 131 normally perform sewage treatment operation to produce water normally, so that the water yield of the cleaning system 100 of the circulation clarifier 131 is ensured.

In the cleaning system 100 of the circulation clarifier 131 according to the embodiment of the present invention, the plurality of circulation clarifier groups 130 are not interfered with each other, and each circulation clarifier group 130 has the corresponding ventilation pipe assembly 110 and the corresponding drainage pipe assembly 120, so that the plurality of circulation clarifier groups 130 can be cleaned at the same time. The cleaning capacity of the cleaning system 100 of the loop clarifier 131 is improved.

It will be understood that the arrows adjacent to each of the ducts of the vent duct assembly 110 and the drain duct assembly 120 of fig. 1 and 2 correspond to the direction of air flow or water flow, respectively, through the ducts.

Optionally, the drainpipe assembly 120 may be located within the loop clarifier body 1311 or within the slant filling 1312, and connected to the slant filling 1312 to drain the sewage that may be in the slant filling 1312.

In some possible embodiments, the washing system 100 further comprises: at least one sedimentation tank. The filter member includes: a pipe chute filler 1312.

The loop clarifiers 131 of each loop clarifier set 130 are arranged in a settling tank.

One end of the air blast pipe 112 extends into the inclined pipe filler 1312 at a first position along the first direction; the first direction is from the loop clarifier 131 towards the bottom of the settling tank.

In this embodiment, one set of loop clarifier banks 130 or a plurality of sets of loop clarifier banks 130 are arranged in one settling tank. After the sewage is settled or separated by each loop clarifier 131 in the loop clarifier group 130, impurities such as sludge can fall into the settling pond, and the treated sewage is discharged through the drainage pipeline assembly 120. Because the air flush pipe 112 needs to convey the air flow to the inclined pipe packing 1312 and enable the air flow to clean the inclined pipe packing 1312, the air flush pipe 112 extends into the inclined pipe packing 1312, and the air flow output from the air flush pipe 112 can be in contact with the inclined pipe packing 1312 to the maximum extent.

Optionally, one end of the air impingement tube 112 extends into the angled tube packing 1312 in the first direction.

Optionally, in the first direction, one end of the air blast tube 112 is parallel to the first direction and extends 2 meters into the slant tube filler 1312.

Optionally, a plurality of small holes are uniformly distributed at one end of the air flushing pipe 112, and the air flow flushes the inclined pipe packing 1312 at different positions through the small holes, so that the flushing range is increased, and the cleaning efficiency of the inclined pipe packing 1312 is improved.

Optionally, the air pipe 111 of the air duct assembly 110 is connected to an air supply system at one end and each air blast pipe 112 at the other end, and the air flow in the air supply system is transmitted to the air blast pipe 112 through the air pipe 111 and then sent to the interior of the slant-tube filler 1312. The gas supply system can be an aeration system in the sedimentation tank, and the gas flow generated by the aeration system has a certain pressure, which is enough to wash the inclined tube filler 1312, and can save the cost.

In some possible embodiments, referring to fig. 1, the vent tube assembly 110 further includes: at least one first ventilation control valve 113, and a second ventilation control valve 114.

The first ventilation control valve 113 and the second ventilation control valve 114 are electrically connected to the controller.

The first ventilation control valve 113 is provided between the aerodynamic tube 111 and the air blast tube 112.

The second vent control valve 114 is provided on the air purge pipe 112.

In this embodiment, the controller can control the opening and closing of the valves, and control the airway tube assembly 110 via the valves to control whether the airway tube assembly 110 delivers a flow of gas or to control the amount of gas delivered. The first ventilation valve corresponds to a main ventilation valve, is provided between the aerodynamic tube 111 and the air blast tube 112, and can control whether or not the duct of the aerodynamic tube 111 ventilates the air blast tube 112. The second vent valve is disposed on the air purge pipe 112 to control whether the air purge pipe 112 vents into the slant pipe filler 1312. In each set of circulation clarifier groups 130, each circulation clarifier 131 is communicated with the same aerodynamic pipe 111 through the corresponding air flushing pipe 112, after cleaning is finished, when the first control valve is closed, the channel of the aerodynamic pipe 111 is closed, no air flow enters the air flushing pipe 112 connected with the aerodynamic pipe 111, the cleaning operation of the whole circulation clarifier group 130 can be stopped, the second vent valves 114 on the air flushing pipes 112 corresponding to each circulation clarifier 131 do not need to be closed one by one, and the cleaning efficiency of the cleaning system 100 is improved.

In this embodiment, when only a part of the clarifiers 131 in each set of clarifiers 130 needs to be cleaned, the first vent valve is opened, and the second vent valve on the air flushing pipe 112 corresponding to the part of the clarifiers 131 that are desired to be cleaned is opened, so that the targeted cleaning is realized, the air flow in the clarifiers 131 that do not need to be cleaned is avoided, and the waste of resources is avoided.

In some possible embodiments, the drain pipe assembly 120 includes: at least one first drain conduit 121, and a second drain conduit 122.

One end of each first drain pipe 121 is located in each of the ring clarifiers 131 of the corresponding ring clarifier group 130, and the other end of each first drain pipe 121 is connected to the second drain pipe 122.

In this embodiment, similar to the ventilation duct assembly 110, the drainage duct assembly 120 includes a first drainage duct 121 and a second drainage duct 122, one second drainage duct 122 is corresponding to each loop clarifier set 130, each loop clarifier 131 in each loop clarifier set 130 is connected to each corresponding first drainage duct 121, and the sewage treated by the inclined tube filler 1312 can flow out of the first drainage duct 121. Each first drainage pipeline 121 is connected with the same second drainage pipeline 122, and the effluent of the inclined pipe packing 1312 in each circulation clarifier 131 is conveyed out uniformly, so that the layout of the drainage pipelines is simplified, and the cost of the drainage pipelines is saved.

In some possible embodiments, referring to fig. 1, the drain pipe assembly 120 further includes: at least one first effluent control valve 123, and a second effluent control valve 124 and siphon device 125.

The first and second effluent control valves 123 and 124 are electrically connected to the controller. The first outlet control valve 123 is provided on the first drain pipe 121. One end of the first drainage pipe 121 extends into the slant pipe filler 1312 in the first direction.

The second outlet control valve 124 has one end connected to the second drain pipe 122 and the other end connected to the siphon device 125.

In this embodiment, the treated sewage is discharged by siphon drainage, and the first drainage pipe 121 extends from above the inclined pipe filler 1312 to the inside of the inclined pipe filler 1312 similarly to the layout of the air blast pipe 112, and siphons the produced water from the inclined pipe filler 1312. The first outlet control valve 123 of the primary drain pipe 121 can control the outlet of the single clarifier 131, and when the single clarifier 131 needs to be cleaned, the corresponding first outlet control valve 123 of the primary drain pipe 121 is closed alone. The second outlet control valve 124 disposed between the second water discharge pipe 122 and the siphon device 125 is equivalent to a main valve for water discharge, and when the inclined pipe packing 1312 of each circulation clarifier 131 in the whole circulation clarifier group 130 needs to be cleaned, the outlet water of the whole circulation clarifier group 130 can be uniformly suspended by directly closing the second outlet control valve 124 without individually suspending the outlet water of each circulation clarifier 131 one by one, so that the cleaning process is simplified, and the cleaning efficiency is increased.

Alternatively, the second outlet control valve 124 is connected at one end thereof to one end of the second drain pipe 122 remote from each of the first drain pipes 121 and at the other end thereof to the siphon device 125

In some possible embodiments, referring to fig. 2, the drain pipe assembly 120 further includes: a third effluent control valve 126 and a valve well 127.

The third effluent control valve 126 is electrically connected to the controller. The first drain conduit 121 extends into the second position in the slant pipe filler 1312. In the first direction, the first position is higher than the second position.

A third outlet control valve 126 is provided at the second drain conduit 122 and is located within the valve well 127.

In this embodiment, the treated sewage is discharged by gravity drainage, and the drainage pipe assembly 120 is located inside the sedimentation tank, so that the discharge of water from the single circulation clarifier 131 is not controlled, and the circulation clarifiers 131 in each circulation clarifier group 130 are horizontally arranged, so that the liquid levels in the circulation clarifiers 131 are consistent, and the water discharge amount of each circulation clarifier 131 is also consistent. The third outlet control valve 126 is arranged in the valve well 127, each circulation clarifier 131 in one circulation clarifier group 130 shares one third outlet control valve 126, when one circulation clarifier group 130 needs to be cleaned, the third outlet control valve 126 is closed, so that the whole circulation clarifier group 130 does not discharge water, and other circulation clarifier groups 130 produce water normally, therefore, for the whole sewage treatment system, the outlet water amount is not obviously reduced, the operation of controlling water discharge is more simplified, the devices required for water discharge are fewer, and the cost is greatly saved.

Optionally, the first drainage conduit 121 extends into the slant-tube packing 1312 in a direction opposite to the first direction.

Based on the same inventive concept, the embodiment of the application provides a sewage treatment system, which comprises: the cleaning system 100 for any of the loop clarifiers 131 as provided in the previous embodiments.

In this embodiment, the cleaning system 100 using any one of the circulation clarifiers 131 provided in the previous embodiments is similar in implementation principle, and will not be described herein again.

Based on the same inventive concept, the present application provides a method for controlling a cleaning system of any one of the loop clarifiers 131 as provided in the previous embodiments, and a flow chart of the method is shown in fig. 3, and the method includes:

s101: the controller controls the closure of the drainline assembly 120 to which at least one loop clarifier 131 is connected for which cleaning is desired.

S102: the controller controls the opening of the aerodynamic tubes 111 of each aeration conduit assembly 110 to which at least one loop clarifier group 130 is connected for which cleaning is desired.

S103: the controller controls the opening of the gas washout pipe 112 to which the strainer 1312 of at least one of the loop clarifiers 131 desired to be cleaned in each loop clarifier group 130 desired to be cleaned is connected.

In the present embodiment, after the circulation clarifier group 130 desired to be cleaned is determined, the aerodynamic tube 111 corresponding to the circulation clarifier group 130 desired to be cleaned is opened, so that the aerodynamic tube 111 can deliver the cleaning airflow to the circulation clarifier group 130. And determining the circulation clarifier 131 which is expected to be cleaned, opening the air flushing pipe 112 corresponding to the circulation clarifier 131 which is expected to be cleaned, enabling the air flushing pipe 112 to convey air flow to the filtering piece 1312 of the circulation clarifier 131 which is expected to be cleaned, and performing impulsive cleaning on the filtering piece 1312. In the cleaning process, the water outlet operation of the circulation clarifier 131 to be cleaned is suspended by controlling the water discharge pipeline assembly 120 of the circulation clarifier 131 expected to be cleaned to be closed, so that the cleaning process is ensured to be carried out smoothly, and the cleaning efficiency and quality are ensured.

Optionally, the step S103 specifically includes:

the cleaning of the tube ramp packing 1312 of the at least one loop clarifier 131 is started at a preset point in time, the actual cleaning duration of the tube ramp packing 1312 being determined on the basis of the preset point in time.

In this step, the actual cleaning duration is determined by the controller, and the control of the cleaning time process is realized.

After step S103, the method further includes:

and if the actual cleaning time reaches the preset cleaning time, controlling the air blast pipe 112 connected with the inclined pipe filler 1312 to be closed.

In this step, by comparing the preset cleaning time period with the actual cleaning time period, when it is determined that the actual cleaning time period reaches the preset cleaning time period, it is determined that the inclined tube filler 1312 of the circulation clarifier 131 desired to be cleaned has been cleaned, and the air blast pipe 112 connected to the inclined tube filler 1312 is controlled to be closed, so that the air flow is not delivered to the inclined tube filler 1312. The aerodynamic tube 111 connected to the air blast tube 112 can continue to aerate the other connected air blast tubes 112 to clean the slant-tube packing 1312 of the other loop clarifier 131. The cleaning method of the circulation clarifier 131 has good timeliness, realizes accurate control of the cleaning process by presetting cleaning duration, and avoids the resource waste caused by continuously cleaning the inclined tube filler 1312 of the circulation clarifier 131 after cleaning.

Alternatively, the controller controls the opening or closing of the aerodynamic tube 111 by controlling the first vent control valve 113 and controls the opening or closing of the pneumatic tube 112 by controlling the second vent control valve 114.

Optionally, the step S101 includes:

the first water discharge conduit 121 connected to the slant filling 1312 of the at least one loop clarifier 131 desired to be cleaned is controlled to be closed and the second water discharge conduit 122 connected to the first water discharge conduit 121 is controlled to be opened. The drain pipe assembly 120 includes a first drain pipe 121 and a second drain pipe 122.

In this step, the first drain pipe 121 connected to one or more of the clarifier(s) 131 desired to be cleaned is closed to stop the water from being discharged, and the second drain pipe 122 is opened to allow the second drain pipe 122 to continue producing water to the other clarifier(s) 131 not closed to the first drain pipe 121, thereby ensuring the water production of the whole sewage treatment system. This step may correspond to a siphon water discharge manner, and the first water outlet pipe is closed by controlling the first water outlet control valve 123 to be closed, and the second water outlet pipe is opened by controlling the second water outlet control valve 124 to be opened.

Optionally, the step S101 includes:

the second water discharge line 122 connected to the tube packing 1312 of the at least one loop clarifier 131 desired to be cleaned is controlled to close. The slant-tube packing 1312 of the at least one loop clarifier 131 desired to be cleaned is connected to at least one first water discharge conduit 121, and the at least one first water discharge conduit 121 is connected to both second water discharge conduits 122.

Unlike the previous embodiment, this step corresponds to the gravity-based water discharge mode, and directly closes the second water discharge pipeline 122 connected to the circulation clarifier group 130, and can be implemented by controlling the third water discharge control valve 126 on the second water discharge pipeline 122, so as to close the water discharge of the entire circulation clarifier group 130. For the specific implementation and beneficial effects, reference may be made to the explanation of the gravity water outlet manner in the foregoing embodiments, which is not described herein again.

By applying the embodiment of the application, at least the following beneficial effects can be realized:

1. in the cleaning system 100 of the loop clarifier 131, each loop clarifier group 130 is connected to a corresponding vent pipe assembly 110 and drain pipe assembly 120. The air duct assembly 110 is capable of delivering a flow of air to the filter 1312 of the annular flow clarifier 131 for cleaning to flush debris accumulated on the filter 1312. Specifically, the aeration conduit assembly 110 includes aerodynamic tubes 111 and impulse tubes 112, one aerodynamic tube 111 being connected to the filtration elements 1312 of multiple loop clarifiers 131 in the same loop clarifier bank 130 via multiple impulse tubes 112, such that the filtration elements 1312 of multiple loop clarifiers 131 can be cleaned simultaneously. During cleaning, the drainage pipeline assembly 120 connected with the circulation clarifier 131 which is expected to be cleaned is closed, and other unwashed circulation clarifiers 131 normally perform sewage treatment operation to produce water normally, so that the water yield of the cleaning system 100 of the circulation clarifier 131 is ensured.

2. In the cleaning system 100 of the circulation clarifier 131 provided in the embodiment of the present application, the plurality of circulation clarifier groups 130 are not interfered with each other, and each circulation clarifier group 130 has the corresponding aeration pipe assembly 110 and the drainage pipe assembly 120, so that the plurality of circulation clarifier groups 130 can be cleaned simultaneously. The cleaning capacity of the cleaning system 100 of the loop clarifier 131 is improved.

3. One set of loop clarifier banks 130 or multiple sets of loop clarifier banks 130 are arranged in one settling tank. After the sewage is settled or separated by each loop clarifier 131 in the loop clarifier group 130, impurities such as sludge can fall into the settling tank, and the treated sewage is discharged through the drainage pipeline assembly 120. Because the air flush pipe 112 needs to convey the air flow to the inclined pipe packing 1312 and enable the air flow to clean the inclined pipe packing 1312, the air flush pipe 112 extends into the inclined pipe packing 1312, and the air flow output from the air flush pipe 112 can be in contact with the inclined pipe packing 1312 to the maximum extent.

4. When only a part of the circulation clarifiers 131 in each circulation clarifier group 130 need to be cleaned, the first vent valve is opened, and the second vent valve on the air flushing pipe 112 corresponding to the part of the circulation clarifiers 131 which are expected to be cleaned is opened, so that the targeted cleaning is realized, the air flow in the circulation clarifiers 131 which do not need to be cleaned is avoided, and the waste of resources is avoided.

5. After the cleaning is finished, when the first control valve is closed, the passage of the air power pipe 111 is closed, no air flow enters the air flushing pipe 112 connected with the air power pipe 111, the cleaning operation of the whole circulation clarifier group 130 can be stopped, the second air control valves 114 on the air flushing pipes 112 corresponding to each circulation clarifier 131 do not need to be closed one by one, and the cleaning efficiency of the cleaning system 100 is improved.

Those of skill in the art will appreciate that the various operations, methods, steps in the processes, acts, or solutions discussed in this application can be interchanged, modified, combined, or eliminated. Further, various operations, methods, steps, measures, schemes in the various processes, methods, procedures that have been discussed in this application may be alternated, modified, rearranged, decomposed, combined, or eliminated. Further, steps, measures, schemes in the prior art having various operations, methods, procedures disclosed in the present application may also be alternated, modified, rearranged, decomposed, combined, or deleted.

In the description of the present application, the directions or positional relationships indicated by the words "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like are for convenience of description or simplification based on the exemplary directions or positional relationships shown in the drawings, and do not indicate or imply that the devices or components referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 the present application can be understood in a specific case by those of ordinary skill in the art.

The particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

It should be understood that, although the steps in the flowcharts of the figures are shown in sequence as indicated by the arrows, the order in which the steps are performed is not limited to the sequence indicated by the arrows. In some implementations of embodiments of the present application, the steps in the various flows may be performed in other sequences as desired, unless explicitly stated otherwise herein. Moreover, some or all of the steps in each flowchart may include multiple sub-steps or multiple stages, depending on the actual implementation scenario. Some or all of the sub-steps or phases may be executed at the same time, or may be executed at different times in a scenario where the execution time is different, and the execution order of the sub-steps or phases may be flexibly configured according to the requirement, which is not limited in this embodiment of the application.

The foregoing is only a part of the embodiments of the present application, and it should be noted that it is within the scope of the embodiments of the present application that other similar implementation means based on the technical idea of the present application can be adopted by those skilled in the art without departing from the technical idea of the present application.

Claims (10)

1. A cleaning system for a recirculating clarifier, comprising: at least one aeration conduit assembly, at least one water discharge conduit assembly, a controller, and at least one loop clarifier cluster; the vent tube assembly includes: an aerodynamic tube and at least one air impingement tube; the loop clarifier group includes: at least one loop clarifier; the loop clarifier includes: the circulation clarifier comprises a circulation clarifier body and a filter piece arranged inside the circulation clarifier body;

the air vent pipeline assembly and the drainage pipeline assembly are both electrically connected with the controller;

in each circulation clarifier group, one end of each air flushing pipe is connected with the filtering piece of each circulation clarifier, and the other end of each air flushing pipe is connected with the same aerodynamic pipe; the drainage pipeline assembly is connected with each circulation clarifier.

2. The cleaning system for a loop clarifier of claim 1, wherein the cleaning system further comprises: at least one sedimentation tank;

and the circulation clarifiers of each circulation clarifier group are arranged in the sedimentation tank.

3. The cleaning system for a loop clarifier of claim 2, wherein the filter element comprises: filling the inclined tube;

one end of the air impact pipe extends into a first position in the inclined pipe packing along a first direction; the first direction is a direction from the loop clarifier towards the bottom of the settling tank.

4. The cleaning system for a loop clarifier of claim 1, wherein the vent conduit assembly further comprises: at least one first vent control valve, and a second vent control valve;

the first ventilation control valve and the second ventilation control valve are both electrically connected with the controller;

the first ventilation control valve is arranged between the aerodynamic pipe and the air flushing pipe;

the second ventilation control valve is arranged on the air flushing pipe.

5. The cleaning system for a loop clarifier of claim 3, wherein the drainline assembly comprises: at least one first drain conduit, and a second drain conduit;

one end of each first drainage pipeline is positioned in each circulation clarifier of the corresponding circulation clarifier group, and the other end of each first drainage pipeline is connected with the second drainage pipeline.

6. The loop clarifier cleaning system defined in claim 5, wherein the drainline assembly further comprises: at least one first water outlet control valve;

the first water outlet control valve is electrically connected with the controller; the first water outlet control valve is arranged on the first drainage pipeline; one end of the first drainage pipeline extends into the inclined pipe filler along a first direction.

7. The loop clarifier cleaning system defined in claim 6, wherein the drainline assembly further comprises: a second water outlet control valve and a siphon device;

the second water outlet control valve is electrically connected with the controller; and one end of the second water outlet control valve is connected with the second water drainage pipeline, and the other end of the second water outlet control valve is connected with the siphon device.

8. The loop clarifier cleaning system defined in claim 5, wherein the drainline assembly further comprises: a third water outlet control valve;

the third water outlet control valve is electrically connected with the controller; the first drainage pipeline extends into a second position in the inclined pipe filler; in the first direction, the first position is higher than the second position.

9. The cleaning system for a loop clarifier of claim 8, wherein the drainline assembly further comprises: a valve well;

and the third water outlet control valve is arranged at the second water drainage pipeline and is positioned in the valve well.

10. A wastewater treatment system comprising: a cleaning system for a loop clarifier according to any one of claims 1 to 9.

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