An automatic water decanting device

Abstract

The utility model relates to sewage treatment equipment technical field especially, more particularly to an automatic decanting device, include: decanting pipeline main part, the lowest decanting elevation position of arrangement in the sedimentation tank, for with the sedimentation tank upper layer clean water is discharged to the drainage pool, water level monitoring module, set up in the front end of decanting pipeline main part for real -time monitoring liquid level height, electric valve, connect in decanting pipeline main part, for control decanting start -stop, reagent mixing device, connect in decanting pipeline main part, for in the decanting process synchronous dosing flocculation reagent, control module is connected with water level monitoring module, electric valve, reagent mixing device, for according to preset time or real -time monitoring liquid level height control decanting start -stop, operation platform, set up in the upper of drainage pool, for installation and later maintenance, the present application can solve the problem such as big, high energy consumption, installation complex, maintenance difficulty in the prior art, realize efficient, stable, intelligent decanting operation.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment equipment technology, and in particular to an automatic decanting device. Background Technology

[0002] In the field of wastewater treatment, especially in the SBR (Sequencing Batch Reactor) process based on activated sludge, the decanter is one of the key pieces of equipment. Its main function is to discharge the supernatant (treated water) from the reaction tank after the sedimentation stage, while avoiding disturbance and carry-over of the bottom sludge.

[0003] Traditional decanters mainly include: (1) Rotary decanter: complex structure, large size, high energy consumption, suitable for large sewage treatment plants; (2) Float decanter: automatically rises and falls by buoyancy, but has problems such as poor stability and easy blockage; (3) Siphon decanter: no power required, but complex control and slow response; (4) Mechanical decanter: relies on motor drive, high energy consumption and high maintenance frequency.

[0004] These traditional devices suffer from problems such as large size, high energy consumption, complex installation, and difficult maintenance, making it difficult to meet the demands of efficient, energy-saving, and intelligent modern water treatment, especially in small and medium-sized wastewater treatment facilities. Utility Model Content

[0005] Therefore, it is necessary to provide an automatic decanting device to address the aforementioned technical problems, aiming to solve the problems of large size, high energy consumption, complex installation, and difficult maintenance in the existing technology, and to achieve efficient, stable, and intelligent decanting operation.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: An automatic decanting device, comprising: a decanting pipe body, disposed between a sedimentation tank and a drainage tank, and positioned at the lowest decanting elevation within the sedimentation tank, for discharging the upper layer of clear water from the sedimentation tank into the drainage tank; a water level monitoring module, disposed at the front end of the decanting pipe body, for real-time monitoring of the liquid level; an electric valve, connected to the decanting pipe body, for controlling the start and stop of decanting; a chemical mixing device, connected to the decanting pipe body and positioned at the front end of the electric valve, for simultaneously adding flocculant during the decanting process; a control module, connected to the water level monitoring module, the electric valve, and the chemical mixing device, for controlling the start and stop of decanting according to a preset time or real-time monitoring of the liquid level; and an operating platform, disposed above the drainage tank, for installation and subsequent maintenance.

[0007] As a further improvement of this invention, the water level monitoring module is a liquid level sensor.

[0008] As a further embodiment of this utility model, the electric valve is a normally closed electric ball valve or butterfly valve, which is used to control the opening and closing state through a control module.

[0009] As a further embodiment of this utility model, the reagent mixing device includes a pipeline mixer for mixing flocculant with decanting water, a first turbidity sensor disposed at the input end of the pipeline mixer for detecting the turbidity of the decanting water at the input end of the pipeline mixer, and a second turbidity sensor disposed at the output end of the pipeline mixer for detecting the turbidity of the decanting water at the output end of the pipeline mixer.

[0010] As a further embodiment of this utility model, it also includes: a reagent storage tank and a metering pump, wherein the reagent storage tank is used to store flocculant, the output end of the reagent storage tank is connected to the input end of the metering pump through a pipeline, and the output end of the metering pump is connected to the input end of a pipeline mixer through a pipeline.

[0011] As a further embodiment of this utility model, the operating platform consists of a maintenance ladder located above the drainage pool and a platform body located below the main body of the decanting pipe.

[0012] As a further improvement of this invention, it also includes a wireless communication module connected to the control module for remote control, data uploading, and abnormal alarm.

[0013] As a further embodiment of this invention, it also includes a storage battery and a solar cell module, wherein the water level monitoring module, electric valve, reagent mixing device, control module, and solar cell module are respectively connected to the storage battery.

[0014] The advantages and beneficial effects of this utility model are as follows: 1. Intelligent control and precise drainage: Dual parameter control of liquid level and turbidity ensures drainage quality, enabling efficient, stable, and intelligent decanting operations. 2. Integrated reagent dosing: Decanting and reagent mixing are carried out simultaneously, further flocculating and removing pollutants to improve subsequent treatment efficiency and decanting quality. 3. Remote monitoring and alarm: Supports remote operation and abnormal alarms, improving operational safety. 4. Low energy consumption and stable operation: Located at the lowest decanting elevation, it requires no external power and operates stably and reliably. 5. Easy maintenance: The operating platform facilitates installation, maintenance, and enhanced safety. 6. Compact structure: Decanting can be achieved simply by installing valves through pipes, resulting in a compact size and light weight. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an automatic decanting device according to the present invention.

[0016] Attached reference numerals: 1. Decanting pipe body; 2. Water level monitoring module; 3. First turbidity sensor; 4. Pipe mixer; 5. Second turbidity sensor; 6. Electric valve; 7. Maintenance ladder; 8. Platform body; 9. Chemical storage tank; 10. Metering pump; 11. Sedimentation tank; 12. Drainage tank; 13. Control module. Detailed Implementation

[0017] The embodiments of this application will now be described in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. Furthermore, the following embodiments and features can be combined with each other unless otherwise specified. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0018] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0019] To address the problems of large size, high energy consumption, complex installation, and difficult maintenance in existing technologies, this application provides an automatic decanting device, as shown in the attached figure. Figure 1 The device includes: a decanting pipe body 1, located between a sedimentation tank 11 and a drainage tank 12, and positioned at the lowest decanting elevation within the sedimentation tank 11, for discharging the upper layer of clear water from the sedimentation tank 11 into the drainage tank 12; a water level monitoring module 2, located at the front end of the decanting pipe body 1, for real-time monitoring of the liquid level; an electric valve 6, connected to the decanting pipe body 1, for controlling the start and stop of decanting; a chemical mixing device, connected to the decanting pipe body 1 and positioned at the front end of the electric valve 6, for simultaneously adding flocculant during the decanting process; a control module 13 (i.e., a controller), connected to the water level monitoring module 2, the electric valve 6, and the chemical mixing device, for controlling the start and stop of decanting according to a preset time or real-time monitoring of the liquid level; and an operating platform, located above the drainage tank 12, for installation and subsequent maintenance.

[0020] In this embodiment, the front end of the decanting pipe body 1 provided in this application is also provided with a filter screen to prevent large particulate impurities from entering the reagent mixing device and then entering the drainage tank 12, thereby improving the decanting quality. In addition, the decanting pipe body 1 can be made of corrosion-resistant material (such as stainless steel or UPVC) and serves as the main drainage channel, connecting the sedimentation tank 11 and the drainage tank 12.

[0021] In this embodiment, the water level monitoring module 2 is a liquid level sensor used to monitor the liquid level in real time and feed it back to the control module 13.

[0022] In this embodiment, the electric valve 6 is a normally closed electric ball valve or butterfly valve, which may be equipped with a waterproof housing, powered by a battery and a solar cell module, and its opening and closing status is controlled by the control module 13.

[0023] In this embodiment, the reagent mixing device includes a pipeline mixer 4 for mixing flocculant with decanting water, a first turbidity sensor 3 disposed at the input end of the pipeline mixer 4 for detecting the turbidity of the decanting water at the input end of the pipeline mixer 4, and a second turbidity sensor 5 disposed at the output end of the pipeline mixer 4 for detecting the turbidity of the decanting water at the output end of the pipeline mixer 4.

[0024] In this embodiment, it also includes: a reagent storage tank 9 and a metering pump 10. The reagent storage tank 9 is used to store flocculant. The output end of the reagent storage tank 9 is connected to the input end of the metering pump 10 through a pipe. The output end of the metering pump 10 is connected to the input end of the pipe mixer 4 through a pipe.

[0025] In this embodiment, the reagent mixing device involved in this application consists of a pipeline mixer 4, a first turbidity sensor 3, and a second turbidity sensor 5, and is connected to an external reagent storage tank 9 and a metering pump 10. Its working mode is as follows: when decanting begins, the control module 13 synchronously starts the metering pump 10, and the flocculant is fully mixed with the drainage through the pipeline mixer 4. The flocculant can be conventional flocculants such as PAC and PAM.

[0026] In this embodiment, the operating platform consists of a maintenance ladder 7 located above the drainage pool 12 and a platform body 8 located below the main body of the decanting pipe 1, which facilitates equipment installation and subsequent maintenance.

[0027] In this embodiment, a wireless communication module (not shown) connected to the control module 13 is also included for remote control, data uploading, and abnormal alarm.

[0028] In this embodiment, remote control and monitoring can be achieved through a smartphone APP or PC. The operating status can be uploaded to the smartphone APP or PC (i.e., the user terminal) through the wireless communication module, and alarm information can be automatically pushed to the user terminal in case of abnormality. Abnormality includes, but is not limited to, abnormal liquid level, valve failure, insufficient reagent, etc.

[0029] In this embodiment, a storage battery and a solar cell module (not shown) are also included. The water level monitoring module 2, electric valve 6, reagent mixing device, control module 13, and solar cell module are respectively connected to the storage battery.

[0030] In this embodiment, by setting up a storage battery and a solar cell module, it is convenient to provide power to the various electrical components of the device, which has the advantage of energy saving.

[0031] In this embodiment, the working principle of this application is as follows: 1. Decanting start-up stage: The control module 13 can start the electric valve 6 according to a preset time (such as completing decanting once a week) or real-time monitoring of the liquid level (when the real-time monitoring liquid level exceeds the minimum decanting elevation), decanting begins, and the metering pump 10 is started at the same time, so that the flocculant is fully mixed with the drainage through the pipeline mixer 4. 2. Decanting operation stage: The liquid level sensor continuously monitors the water level change, and the first turbidity sensor 3 and the second turbidity sensor 5 continuously monitor the decanting water quality. If the turbidity is abnormal (i.e., the difference in decanting turbidity calculated by the first turbidity sensor 3 and the second turbidity sensor 5 exceeds the preset decanting turbidity difference threshold), decanting is suspended, and the control module 13 uploads the operating status to the user terminal in real time through the wireless communication module. 3. Decanting end stage: When the liquid level drops below the minimum decanting elevation, the electric valve 6 automatically closes, and the metering pump 10 stops synchronously, completing one decanting cycle. 4. Remote control and alarm mechanism: Users can remotely control the start and stop of electric valve 6 via a smartphone APP, and automatically push alarm information when abnormal situations occur (such as valve failure, insufficient agent, abnormal liquid level).

[0032] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications or substitutions should be considered within the protection scope of the present invention.

Claims

1. An automatic decanting device, characterized in that, include: The main body of the decanting pipe is located between the sedimentation tank and the drainage tank, and is laid at the lowest decanting elevation in the sedimentation tank, used to discharge the upper layer of clear water from the sedimentation tank into the drainage tank. The water level monitoring module is located at the front end of the decanting pipe body and is used to monitor the liquid level in real time. An electric valve, connected to the main body of the decanting pipe, is used to control the start and stop of decanting; A chemical mixing device is connected to the main body of the decanting pipe and is installed at the front end of the electric valve for simultaneously adding flocculant during the decanting process; The control module, connected to the water level monitoring module, electric valve, and chemical mixing device, is used to control the start and stop of decanting according to a preset time or real-time monitoring of the liquid level. The operating platform, located above the drainage pool, is used for installation and subsequent maintenance.

2. The automatic decanting device according to claim 1, characterized in that, The water level monitoring module is a liquid level sensor.

3. An automatic decanting device according to claim 1, characterized in that, The electric valve is a normally closed electric ball valve or butterfly valve, used to control the opening and closing status through a control module.

4. An automatic decanting device according to claim 1, characterized in that, The reagent mixing device includes a pipeline mixer for mixing flocculant with decanting water, a first turbidity sensor located at the input end of the pipeline mixer for detecting the turbidity of the decanting water at the input end of the pipeline mixer, and a second turbidity sensor located at the output end of the pipeline mixer for detecting the turbidity of the decanting water at the output end of the pipeline mixer.

5. An automatic decanting device according to claim 4, characterized in that, Also includes: A reagent storage tank and a metering pump are provided. The reagent storage tank is used to store flocculants. The output end of the reagent storage tank is connected to the input end of the metering pump through a pipeline. The output end of the metering pump is connected to the input end of a pipeline mixer through a pipeline.

6. An automatic decanting device according to claim 1, characterized in that, The operating platform consists of a maintenance ladder located above the drainage pool and a platform body located below the main body of the decanting pipe.

7. An automatic decanting device according to claim 1, characterized in that, It also includes a wireless communication module connected to the control module for remote control, data uploading, and alarm functions.

8. An automatic decanting device according to claim 1, characterized in that, It also includes a storage battery and a solar cell module, with the water level monitoring module, electric valve, reagent mixing device, control module, and solar cell module respectively connected to the storage battery.

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