Device for conveniently realizing intelligent feeding of liquid carbon source of denitrification filter tank

Abstract

The utility model discloses a device convenient for realizing intelligent feeding of a liquid carbon source of a denitrification filter tank, and belongs to the field of water treatment. A stirring frame and a temperature control device are arranged in the heat preservation carbon source stirring storage tank; the communication control module is used for receiving a current carbon source adding amount control signal issued by the cloud main control unit, and controlling the flow speed of the dosing pump, namely controlling the carbon source adding amount; a carbon source is added to a denitrification filter in a multi-point manner through multi-point adding combined equipment provided with a plurality of rows of adding pipe frames and adding ports. The device can control the feeding amount of the carbon source in real time while keeping the activity and the using effect of the carbon source, optimizes the denitrification effect and the reaction rate of the reaction tank through multi-point feeding, saves the operation and maintenance cost of a water plant, solves the technical problem that the denitrification system is greatly influenced by inlet and outlet water, optimizes the stability of the denitrification system, and realizes cost reduction and efficiency improvement.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection and water treatment technology, and in particular to a device that facilitates the intelligent addition of liquid carbon sources to denitrification filters. Background Technology

[0002] Carbon sources, as common water treatment agents, serve as energy sources for microbial growth and reproduction, promoting the decomposition of organic pollutants. They are primarily used in the denitrification process of wastewater treatment plants. Currently, common carbon sources are composite carbon sources composed of sodium acetate, glucose, and various other carbon sources. In practical applications, these are added in liquid form to the denitrification filters of wastewater treatment systems to reduce nitrate nitrogen and total nitrogen levels in the effluent. Existing carbon source dosing devices consist of a storage tank and a single dosing pipe. The required carbon source dosage is calculated by on-site personnel and then added to the denitrification filter through this single-point dosing pipe.

[0003] However, in actual production, the problem of overdosing carbon sources often occurs. This is related to the comprehensive calculation ability of water plant staff regarding carbon source dosage, as well as the poor on-site carbon source storage environment leading to decreased denitrification efficiency and uneven denitrification results caused by single-point carbon source dosing. Specifically, the ability to calculate carbon source dosage is related to the on-site personnel's operational experience and is greatly affected by human factors. On-site carbon source storage tanks are typically stored at room temperature for extended periods, which can lead to uneven carbon source concentration across layers. Excessively high or low on-site temperatures can affect carbon source composition and reduce utilization efficiency. Single-point dosing refers to adding carbon sources only at a specific location during wastewater treatment. This results in concentrated denitrification in certain areas of the denitrification filter, while other areas lack carbon sources, leading to an imbalance in the microbial community structure and affecting the overall denitrification effect. Furthermore, the system has poor adaptability to changes in influent and effluent water quality and quantity, making precise control of carbon source dosage difficult. Currently, there is no device that can comprehensively solve all these problems and facilitate intelligent carbon source dosing in denitrification filters.

[0004] In view of the above, this utility model is hereby proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a device that facilitates the intelligent addition of liquid carbon sources to denitrification filters. While maintaining the activity of the carbon source, it can work with cloud-based main control equipment to accurately control the amount of carbon source added, and multi-point addition can enhance the denitrification effect, thereby solving the above-mentioned technical problems existing in the prior art.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A device for facilitating intelligent dosing of liquid carbon sources in denitrification filters includes:

[0008] The system includes an insulated carbon source mixing tank, a carbon source discharge pipe, a discharge valve, a communication control module, a dosing pump, and a multi-point dosing assembly; among which,

[0009] A carbon source discharge pipe is provided on the lower side of the insulated carbon source stirring tank. A discharge valve is provided on the carbon source discharge pipe. The carbon source discharge pipe is connected to the multi-point dosing combination equipment via a dosing pump.

[0010] The communication control module is electrically connected to the control terminal of the dosing pump and can communicate with the cloud master control device through the network. It can receive the current carbon source dosing control signal sent by the cloud master control device and control the dosing pump to add the corresponding amount of carbon source through the multi-point dosing combination device according to the current carbon source dosing control signal.

[0011] Compared with the prior art, the device provided by this utility model for intelligent addition of liquid carbon source to denitrification filters has the following advantages:

[0012] By employing an insulated carbon source stirring tank, the stored carbon source can be stirred and kept warm, maintaining its activity and effectiveness. A communication control module controls the dosing pump, receiving control signals for the current carbon source dosage from the cloud-based main control device. Based on these signals, the pump is controlled to add the corresponding amount of carbon source, facilitating intelligent carbon source dosing in conjunction with the cloud-based main control device. This allows for real-time control of the carbon source dosage, saving on reagent maintenance costs. Furthermore, by setting up a multi-point dosing system, the carbon source is introduced into the denitrification filter via dosing ports on a multi-point dosing pipe rack, improving carbon source dosing efficiency and the overall denitrification effect of the reaction tank. This solves the technical problems currently existing in industrial systems, such as poor denitrification effect from single-point dosing, significant susceptibility of the denitrification system to influent water quality, and the fragility of the biological system, achieving cost reduction and efficiency improvement. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 A schematic diagram of the device for intelligent addition of liquid carbon source to denitrification filter provided in this embodiment of the present invention.

[0015] Figure 2 This is a top view schematic diagram of a device for intelligent addition of liquid carbon source to a denitrification filter, provided as an embodiment of the present invention.

[0016] Figure 3 This is a structural block diagram of the main control unit of the cloud-based main control device.

[0017] Figure 1 and Figure 2 The components are labeled as follows: 1-Insulated carbon source stirring tank; 2-Discharge valve; 3-Online carbon source COD monitoring equipment; 4-Communication control module; 5-Dosing pump; 6-Denitrification filter; 7-Online monitoring equipment for denitrification filter influent; 8-Online monitoring equipment for denitrification filter effluent; 9-Level sensor; 10-Temperature sensor; 11-Exhaust pipe; 12-Temperature control device; 13-Rotating shaft motor; 14-Inlet; 15-Online COD monitor for denitrification filter influent; 16-Flow meter for denitrification filter influent; 17-Online nitrate nitrogen monitor for denitrification filter influent; 18-... - Online monitoring instrument for total phosphorus in the denitrification filter influent; 19- Online monitoring instrument for total nitrogen in the denitrification filter influent; 20- Multi-point dosing combination equipment; 21- Multi-point dosing main pipe rack; 22- Multi-point dosing branch pipe rack; 23- Online monitoring instrument for total nitrogen in the denitrification filter effluent; 24- Online monitoring instrument for total phosphorus in the denitrification filter effluent; 25- Online monitoring instrument for nitrate nitrogen in the denitrification filter effluent; 26- Denitrification filter effluent flow meter; 27- Online monitoring instrument for COD in the denitrification filter effluent; 28- Multiple carbon source dosing ports; 29- Heating pipe rack; 30- Stirring main shaft; 31- Stirring frame; 32- Stirring fan blades. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments, which do not constitute a limitation on the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] First, the following explanations are provided for the terms that may be used in this article:

[0020] The term "and / or" means that either or both can be achieved simultaneously. For example, X and / or Y means that it includes both "X" or "Y" as well as the three cases of "X and Y".

[0021] The terms "comprising," "including," "containing," "having," or other similar semantic descriptions should be interpreted as non-exclusive inclusion. For example, including a technical feature element (such as raw material, component, ingredient, carrier, dosage form, material, size, part, component, mechanism, device, step, process, method, reaction conditions, processing conditions, parameter, algorithm, signal, data, product or article of manufacture, etc.) should be interpreted as including not only the expressly listed technical feature element, but also other technical feature elements that are not expressly listed and are well-known in the art.

[0022] The term "composed of" excludes any technical features not expressly listed. When used in a claim, it closes the claim to exclude all technical features other than those expressly listed, except for associated conventional impurities. If the term appears only in a clause of a claim, it limits the claim to the elements expressly listed in that clause; elements recited in other clauses are not excluded from the overall claim.

[0023] Unless otherwise explicitly specified or limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections 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 document according to the specific circumstances.

[0024] The terms “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “clockwise,” and “counterclockwise” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience and simplification of description and do not imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this document.

[0025] The solution provided by this utility model is described in detail below. Contents not described in detail in the embodiments of this utility model are prior art known to those skilled in the art. Where specific conditions are not specified in the embodiments of this utility model, they shall be performed according to conventional conditions in the art or conditions recommended by the manufacturer. Reagents or instruments used in the embodiments of this utility model whose manufacturers are not specified are all conventional products that can be purchased commercially.

[0026] like Figure 1 and Figure 2 As shown, this utility model provides a device for intelligent addition of liquid carbon source to a denitrification filter, comprising:

[0027] The system includes: an insulated carbon source mixing and storage tank 1, a carbon source discharge pipe, a discharge valve 2, a communication control module 4, a dosing pump 5, and a multi-point dosing combination device 20; among which,

[0028] A carbon source discharge pipe is provided on the lower side of the insulated carbon source stirring storage tank 1. A discharge valve 2 is provided on the carbon source discharge pipe. The carbon source discharge pipe is connected to the multi-point dosing combination device 20 via a dosing pump 5.

[0029] The communication control module 4 is electrically connected to the control terminal of the dosing pump 5. It can communicate with the cloud master control device through the network, receive the current carbon source dosing control signal sent by the cloud master control device, and control the dosing pump 5 to add the corresponding amount of carbon source through the multi-point dosing combination device 20 according to the current carbon source dosing control signal.

[0030] Preferably, in the above-mentioned device, the heat-insulated carbon source stirring storage tank 1 includes:

[0031] The tank body, inlet 14, exhaust pipe 11, stirring device, heating tube rack 29, temperature control device 12, liquid level sensor 9, and temperature sensor 10; among which,

[0032] The top of the tank is provided with a feed inlet 14 and an exhaust pipe 11, and the carbon source discharge pipe is provided on the lower side of the tank.

[0033] The stirring device is arranged from top to bottom inside the tank and can stir the carbon source stored in the tank.

[0034] The heating tube rack 29 is disposed on the inner side wall of the tank;

[0035] The liquid level sensor 9 and the temperature sensor 10 are respectively installed inside the tank;

[0036] The temperature control device 12 is disposed outside the tank and is electrically connected to the heating tube frame 29 and the temperature sensor 10 respectively. It can turn on the heating tube frame 29 to heat the carbon source stored in the tank when the measured temperature value of the temperature sensor 10 is lower than a predetermined temperature, and turn off the heating tube frame 29 to stop heating the carbon source stored in the tank when the temperature is higher than the predetermined temperature.

[0037] The liquid level sensor 9 can determine the liquid level of the carbon source stored in the tank.

[0038] Preferably, in the above-described apparatus, the stirring device includes:

[0039] The components include a rotary motor 13, a stirring main shaft 30, multiple stirring frames 31, and multiple stirring blades 32; among which,

[0040] The rotating shaft motor 13 is located on the top of the tank body;

[0041] The stirring shaft 30 is inserted into the tank from top to bottom, and the upper end of the stirring shaft 30 is connected to the power shaft of the rotating shaft motor 13.

[0042] Multiple stirring racks 31 are evenly spaced from top to bottom on the stirring main shaft 30 inside the tank, and multiple stirring blades 32 are evenly installed on each stirring rack 31.

[0043] Preferably, in the above-described apparatus, the multi-point dosing combination device 20 includes:

[0044] The system includes a multi-point injection main pipe rack 21, multiple multi-point injection branch pipe racks 22, and multiple carbon source injection ports 28 equipped with valves; among which,

[0045] Multiple multi-point injection branch pipe racks 22 are evenly installed on both sides of the multi-point injection main pipe rack 21;

[0046] Multiple carbon source dosing ports 28 are evenly installed below each multi-point dosing pipe rack 22.

[0047] Preferably, in the above-mentioned device, the tank is a cylindrical sealed tank with a flat top and a flat bottom.

[0048] Furthermore, the cloud-based main control equipment that works in conjunction with the above-mentioned device can consist of the following components:

[0049] The main control unit, carbon source COD online monitoring device 3, denitrification filter influent online monitoring device 7, and denitrification filter effluent online monitoring device 8; among which,

[0050] The online monitoring device 7 for the denitrification filter influent is installed at the influent end of the denitrification filter and can monitor the online monitoring data of the denitrification filter influent.

[0051] The online monitoring device 8 for the effluent from the denitrification filter is installed at the effluent end of the denitrification filter and can monitor the online monitoring data of the effluent from the denitrification filter.

[0052] The carbon source COD online monitoring device 3 is connected to the carbon source discharge pipe of the insulated carbon source stirring tank 1 and can monitor the carbon source COD of the insulated carbon source stirring tank 1.

[0053] The main control unit is communicatively connected to the control module of the device, and also communicatively connected to the carbon source COD online monitoring device 3, the denitrification filter influent online monitoring device 7, and the denitrification filter effluent online monitoring device 8. It can calculate the current carbon source dosage from the online monitoring data of the carbon source COD monitored by the carbon source COD online monitoring device 3, the denitrification filter influent online monitoring device 7, and the denitrification filter effluent online monitoring device 8, and send the corresponding current carbon source dosage control signal to the control module of the device.

[0054] Preferably, the main control unit is configured as follows: Figure 3 As shown, it includes:

[0055] The module consists of a data acquisition module, a dosage calculation module, and a dosage communication control module; among which,

[0056] The data acquisition module is communicatively connected to the carbon source COD online monitoring device 3, the denitrification filter influent online monitoring device 7, and the denitrification filter effluent online monitoring device 8, and can acquire carbon source COD through the carbon source COD online monitoring device 3 and online monitoring data from the denitrification filter influent online monitoring device 7 and the denitrification filter effluent online monitoring device 8.

[0057] The dosage calculation module is communicatively connected to the data acquisition module and can calculate the current carbon source dosage based on the carbon source COD and online monitoring data obtained by the data acquisition module 41.

[0058] The dosage communication control module is communicatively connected to the dosage calculation module and the control module of the device, and can send a current carbon source dosage control signal to the control module of the device based on the current carbon source dosage calculated by the dosage calculation module.

[0059] Preferably, in the above-mentioned cloud-based main control equipment, the online monitoring device 7 for the denitrification filter influent includes:

[0060] 15. Online monitoring device for COD in denitrification filter influent, 16. Online flow meter for denitrification filter influent, 17. Online monitoring instrument for nitrate nitrogen in denitrification filter influent, 18. Online monitoring instrument for total phosphorus in denitrification filter influent, and 19. Online monitoring instrument for total nitrogen in denitrification filter influent;

[0061] The online COD monitoring device 15, the online flow meter 16, the online nitrate nitrogen monitoring instrument 17, the online total phosphorus monitoring instrument 18, and the online total nitrogen monitoring instrument 19 for the denitrification filter influent are all installed at the influent end of the denitrification filter.

[0062] The online monitoring device 8 for the effluent from the denitrification filter includes:

[0063] Online monitoring device for COD in denitrification filter effluent 27, online flow meter for denitrification filter effluent 26, online monitoring instrument for nitrate nitrogen in denitrification filter effluent 25, online monitoring instrument for total phosphorus in denitrification filter effluent 24, and online monitoring instrument for total nitrogen in denitrification filter effluent 23;

[0064] The online COD monitoring device 27, the online flow meter 26, the online nitrate nitrogen monitoring instrument 25, the online total phosphorus monitoring instrument 24, and the online total nitrogen monitoring instrument 23 of the denitrification filter effluent are all installed at the effluent end of the denitrification filter.

[0065] In the aforementioned device, the insulated carbon source stirring tank 1 contains a stirring rack and a temperature control device, enabling heating and stirring of the carbon source. The communication control module facilitates the reception of current carbon source dosage control signals from the cloud-based main control equipment, accurately controlling the dosing pump in conjunction with the multi-point dosing combination equipment to achieve precise carbon source dosing. Since the cloud-based main control equipment calculates the current carbon source dosage in real time based on the carbon source COD content, COD, total nitrogen, total phosphorus, nitrate nitrogen influent and effluent of the denitrification filter, and influent and effluent flow rates, the carbon source dosage using this device is on-demand, more accurate, and avoids reagent waste. This device can maintain carbon source activity and effectiveness while controlling the carbon source dosage in real time. Through multi-point dosing, it optimizes the denitrification effect and reaction rate in the reaction tank, saving water plant operation and maintenance costs. It solves the technical problem of the denitrification system being greatly affected by influent and effluent, optimizes the stability of the denitrification system, and achieves cost reduction and efficiency improvement.

[0066] To more clearly demonstrate the technical solution and its effects provided by this utility model, the following detailed description of the solution provided by the embodiments of this utility model is given with reference to specific examples. Example

[0067] like Figure 1 and Figure 2 As shown, this embodiment provides a device for intelligent addition of liquid carbon source to a denitrification filter, including: an insulated carbon source stirring tank 1, a discharge valve 2, a communication control module 4, a dosing pump 5, a liquid level sensor 9, a temperature sensor 10, an exhaust pipe 11, a temperature control device 12, a rotating shaft motor 13, a feed inlet 14, a multi-point dosing combination device 20, a multi-point dosing main pipe rack 21, a multi-point dosing branch pipe rack 22, multiple carbon source dosing ports 28, a heating pipe rack 29, a stirring main shaft 30, a stirring frame 31, and stirring fan blades 32.

[0068] In a preferred embodiment, such as Figure 1 As shown, the device for intelligent liquid carbon source dosing in denitrification filters in this embodiment consists of an insulated carbon source stirring tank 1, a discharge valve 2, a communication control module 4, a dosing pump 5, and a multi-point dosing assembly 20. The carbon source reagent is stirred and stored in the insulated carbon source stirring tank 1. After the communication control module 4 controls the dosing amount according to the received current carbon source dosing control signal, the reagent is transported by the dosing pump 5 to the multi-point dosing assembly 20, and finally added to the denitrification filter at multiple points.

[0069] In a preferred embodiment, such as Figure 1As shown, the carbon source is poured into the insulated carbon source stirring tank 1 through the feed port 14. Driven by the rotating shaft motor 13 and the stirring main shaft 30, it is evenly stirred by the stirring blades 32 on the stirring frame 31. During this process, the heating tube frame 29, whose temperature is controlled by the temperature control device 12, keeps the carbon source warm. The gas generated by the carbon source in the tank is discharged through the exhaust pipe 11. Finally, the carbon source enters the next stage from the discharge port. The preferred carbon source is sodium acetate, and the temperature is set to 25-35°C by the temperature control device 12.

[0070] In a preferred embodiment, such as Figure 1 As shown, a liquid level sensor 9 and a temperature sensor 10 are inserted from top to bottom into the insulated carbon source stirring tank 1 to observe the carbon source content and temperature inside the tank.

[0071] In a preferred embodiment, such as Figure 1 As shown, after the discharge valve 2 is opened, the carbon source is discharged from the insulated carbon source stirring storage tank 1. The communication control module 4 accurately controls the flow rate of the dosing pump 5 according to the current carbon source addition control signal received from the cloud main control device, and transports the carbon source to the multi-point dosing combination device 20 at the comprehensively calculated flow rate.

[0072] Preferably, the cloud-based main control device can monitor the carbon source COD content in real time through the carbon source COD online monitoring device 3. The carbon source COD detection results, the denitrification filter influent online monitoring device 7, and the denitrification filter effluent online monitoring device 8 together calculate the current carbon source dosage, and then obtain the current carbon source dosage control signal.

[0073] See Figure 2 The carbon source COD online monitoring device 3, the denitrification filter influent online monitoring device 7, and the denitrification filter effluent online monitoring device 8 of the cloud-based main control equipment are all connected to the main control unit. The monitoring data of each device is input into the main control unit. Among them, the denitrification filter influent online monitoring device 7 includes denitrification filter influent COD online monitoring 15, denitrification filter influent flow meter 16, denitrification filter influent nitrate nitrogen online monitoring 17, denitrification filter influent total phosphorus online monitoring 18, and denitrification filter influent total nitrogen online monitoring 19. The denitrification filter effluent online monitoring device 8 includes denitrification filter effluent total nitrogen online monitoring 23, denitrification filter effluent total phosphorus 24, denitrification filter effluent nitrate nitrogen online monitoring 25, denitrification filter effluent flow meter 26, and denitrification filter effluent COD online monitoring 27.

[0074] See Figure 3The main control unit consists of three parts: a data acquisition module for carbon source COD content, water quality indicators of the denitrification filter influent and effluent, and influent and effluent flow rates. This data is then output from the data acquisition module and input to the dosage calculation module. After comprehensive calculation and analysis of the data, the required dosage and dosing rate are calculated and output to the dosage communication control module. The dosage communication control module communicates with the device's control module, sending it a current carbon source dosage control signal. Based on this signal, the communication control module controls the dosing pump 5 to adjust its flow rate, thereby controlling the dosage and dosing rate. The method for calculating the current carbon source dosage is set according to the specific conditions of different water plants; it can use existing common calculation methods or methods determined by each water plant.

[0075] In a preferred embodiment, such as Figure 1 As shown, the multi-point dosing combined equipment 20 is installed above the denitrification filter 6. The multi-point dosing combined equipment 6 consists of a multi-point dosing main pipe frame 21, multi-point dosing branch pipe frames 22, and multiple carbon source dosing ports 28. The carbon source is input into the main pipeline by the dosing pump 5, and then enters multiple rows of branch pipes. The carbon source is dripped into the denitrification filter 6 through multiple carbon source dosing ports equipped with valves in the branch pipes, realizing multi-point dosing and uniform reaction. Among them, multi-point dosing branch pipe frames are installed at equal intervals on both sides of the multi-point dosing main pipe frame, with 5 branch pipe frames on each side. Each branch pipe frame is equipped with 3 carbon source dosing ports, and 1 carbon source dosing port is set at the end of the main pipe frame.

[0076] This invention maintains the activity and effectiveness of carbon source by stirring and keeping it warm in an insulated carbon source mixing tank. It receives the current carbon source dosage control signal from the cloud-based main control device via a communication control module, enabling accurate control of the carbon source dosage by the dosing pump. This reduces denitrification costs and saves on reagent maintenance costs. By setting up a multi-point dosing combination device, the carbon source is added to the denitrification filter through the dosing port on the multi-point dosing pipe rack. The carbon source is evenly distributed in the reaction tank, improving the carbon source dosing efficiency and the overall denitrification effect of the reaction tank. This solves the technical problems currently existing in industry, such as poor denitrification effect from single-point dosing, the large influence of influent water quality on the denitrification system, and the fragility of the biological system, thus achieving cost reduction and efficiency improvement.

[0077] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims. The information disclosed in the background section is intended only to enhance the understanding of the overall background technology of this utility model and should not be construed as an admission or implication in any way that such information constitutes prior art known to those skilled in the art.

Claims

1. A device for facilitating intelligent dosing of liquid carbon source in denitrification filters, characterized in that, include: The system includes an insulated carbon source mixing tank (1), a carbon source discharge pipe, a discharge valve (2), a communication control module (4), a dosing pump (5), and a multi-point dosing combination device (20); among which, The heat-insulated carbon source stirring storage tank (1) is provided with a carbon source discharge pipe on its lower side. The carbon source discharge pipe is provided with a discharge valve (2). The carbon source discharge pipe is connected to the multi-point dosing combination equipment (20) via a dosing pump (5). The communication control module (4) is electrically connected to the control terminal of the dosing pump (5), and can communicate with the cloud master control device through the network. It can receive the current carbon source dosing amount control signal issued by the cloud master control device, and control the dosing pump (5) to add the corresponding amount of carbon source through the multi-point dosing combination device (20) according to the current carbon source dosing amount control signal.

2. The device for intelligent addition of liquid carbon source to denitrification filters according to claim 1, characterized in that, The insulated carbon source stirring storage tank (1) includes: The tank body, inlet (14), exhaust pipe (11), stirring device, heating tube rack (29), temperature control device (12), liquid level sensor (9), and temperature sensor (10); among which, The top of the tank is provided with a feed inlet (14) and an exhaust pipe (11), and the bottom of the tank is provided with a carbon source discharge pipe. The stirring device is arranged from top to bottom inside the tank and can stir the carbon source stored in the tank. The heating tube rack (29) is installed on the inner side wall of the tank; The liquid level sensor (9) and the temperature sensor (10) are respectively installed inside the tank; The temperature control device (12) is located outside the tank and is electrically connected to the heating tube frame (29) and the temperature sensor (10) respectively. It can turn on the heating tube frame (29) to heat the carbon source stored in the tank when the measured temperature value of the temperature sensor (10) is lower than the predetermined temperature, and turn off the heating tube frame (29) to stop heating the carbon source stored in the tank when the temperature is higher than the predetermined temperature.

3. The device for intelligent addition of liquid carbon source to denitrification filters according to claim 2, characterized in that, The stirring device includes: The system includes a rotary motor (13), a stirring shaft (30), multiple stirring racks (31), and multiple stirring blades (32); among which, The rotating shaft motor (13) is located on the top of the tank body; The stirring spindle (30) is inserted into the tank from top to bottom, and the upper end of the stirring spindle (30) is connected to the power shaft of the rotating shaft motor (13). Multiple stirring racks (31) are evenly spaced from top to bottom on the stirring main shaft (30) inside the tank, and multiple stirring blades (32) are evenly installed on each stirring rack (31).

4. The device for intelligent addition of liquid carbon source to a denitrification filter according to any one of claims 1-3, characterized in that, The multi-point dosing combination device (20) includes: The system includes a multi-point injection main pipe rack (21), multiple multi-point injection branch pipe racks (22), and multiple carbon source injection ports (28) equipped with valves; among which, Multiple multi-point injection sub-pipe racks (22) are evenly installed on both sides of the multi-point injection main pipe rack (21); Multiple carbon source dosing ports (28) are evenly installed below each multi-point dosing pipe rack (22).

5. The device for intelligent addition of liquid carbon source to a denitrification filter according to any one of claims 2-3, characterized in that, The tank is a cylindrical, sealed tank with a flat top and a flat bottom.

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