Movable sewage treatment equipment for black and odorous water in rural closed pond

Abstract

The utility model discloses movable sewage treatment equipment for black and odorous water in a rural closed pond, which comprises a container main body, the container main body comprises a treatment water tank and an equipment mounting chamber, a diesel generator, a power distribution cabinet, an oxygen generator and a medicament adder are arranged in the equipment mounting chamber, a circulating water pump is arranged in the treatment water tank, and the circulating water pump is communicated with the equipment mounting chamber. A water inlet, a water outlet and a dosing port are respectively formed in the side of the treatment water tank, the water inlet end of the circulating water pump is communicated with the water inlet, the horizontal height of the water outlet is greater than that of the water inlet, and an oxygen dissolving cone and an aeration mechanism are arranged in the treatment water tank. The oxygen generator is matched with an oxygen dissolving cone, a venturi ejector and the like, and oxygen and water are fully mixed by utilizing high pressure to form supersaturated dissolved oxygen water; the aeration mechanism sprays water into the water body through a special nozzle according to the preset pulse frequency and duration, the oxygen dissolution and diffusion efficiency is greatly improved, and compared with a traditional aeration mode, the oxygen utilization rate is increased by 40%-60%.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment equipment technology, and in particular to a mobile sewage treatment equipment for black and odorous water bodies in closed ponds in rural areas. Background Technology

[0002] The treatment of black and odorous water bodies in enclosed rural ponds is an important task for improving the rural ecological environment. Traditional fixed sewage treatment facilities are ill-suited to the dispersed nature of rural ponds, while existing mobile equipment falls short in terms of treatment process effectiveness, equipment integration, and innovative aeration methods. Black and odorous water bodies in rural ponds typically contain large amounts of pollutants such as organic matter, nitrogen, and phosphorus, requiring efficient and targeted treatment methods. Therefore, the development of a new type of containerized mobile sewage treatment equipment is urgently needed. Utility Model Content

[0003] In order to solve the problems mentioned in the background art, this utility model provides a mobile sewage treatment device for black and odorous water bodies in closed ponds in rural areas.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A mobile sewage treatment device for black and odorous water bodies in enclosed ponds in rural areas includes a container body. The container body includes a treatment water tank and an equipment installation room. The equipment installation room is equipped with a diesel generator, a power distribution cabinet, an oxygen generator, and a chemical dosing device. The treatment water tank is equipped with a circulating water pump. The sides of the treatment water tank are respectively equipped with an inlet, an outlet, and a chemical dosing port. The inlet of the circulating water pump is connected to the inlet. The outlet is at a higher level than the inlet. The treatment water tank is equipped with a dissolved oxygen cone and an aeration mechanism. An underwater agitator is also installed inside the container body.

[0006] Preferably, the outlet of the circulating water pump is connected to the inlet of the dissolved oxygen cone via a pipe, and the oxygen inlet of the dissolved oxygen cone is connected to the oxygen generator.

[0007] Preferably, a Venturi ejector is provided between the outlet of the circulating water pump and the inlet of the dissolved oxygen cone, and the air inlet of the Venturi ejector is connected to the oxygen generator.

[0008] Preferably, the aeration mechanism includes an aeration ring pipe, which is connected to the bottom end of the venturi injector, and multiple branch pipes are connected to the inner wall of the aeration ring pipe.

[0009] Preferably, a mixing impeller is installed inside the dissolved oxygen cone, a first bevel gear is connected to the input shaft of the mixing impeller, a rotary motor is fixed on the outer wall of the container body, a second bevel gear is fixed to the output shaft of the rotary motor, and the first bevel gear meshes with the second bevel gear.

[0010] Preferably, lifting rings are fixed at the four top corners of the container body, and hydraulic support feet are installed at the four bottom corners of the container body.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. High flexibility: Adopting a container-style design, with lifting rings at the top and hydraulic support feet at the bottom, it can be easily lifted by a crane to the edge of different rural enclosed ponds, adapting to the characteristics of scattered pond distribution. After completing the treatment at one location, it can be quickly transferred to the next operation, solving the problem of the inflexibility of traditional fixed sewage treatment facilities.

[0013] 2. Highly Efficient Treatment Process: The oxygen generator, combined with dissolved oxygen cones and venturi injectors, utilizes high pressure to thoroughly mix oxygen and water, forming supersaturated dissolved oxygen water. The aeration mechanism injects oxygen into the water body through special nozzles at a preset pulse frequency and duration, significantly improving oxygen dissolution and diffusion efficiency. Compared to traditional aeration methods, oxygen utilization is increased by 40%-60%. Underwater agitators and circulating water pumps work together to enhance water flow and material exchange capacity, ensuring uniform distribution of supersaturated dissolved oxygen and accelerating the decomposition and transformation of pollutants.

[0014] 3. High degree of equipment integration: The diesel generator, power distribution cabinet, oxygen generator, and chemical dosing device are integrated into the equipment installation room. The components fit together closely and realize multiple functions in a compact container space, meeting the sewage treatment needs in one stop.

[0015] 4. Innovative aeration method: The combination of aeration ring pipe and pulse aeration nozzle with electromagnetic control valve can precisely control the aeration rhythm, disturb the water body with high-speed jet, enhance oxygen diffusion, and significantly improve the aeration effect.

[0016] 5. Precise dosing of chemicals: The storage tank of the chemical dosing device is equipped with a liquid level sensor and a stirring device to ensure uniform mixing and stable storage of chemicals. The metering dosing device automatically adjusts the dosage based on water quality monitoring data, accurately controlling the use of chemicals, which can optimize the treatment effect and reduce costs.

[0017] 6. Intelligent and convenient control: The intelligent control system is based on a PLC, connecting various devices and sensors, automatically adjusting operating parameters to achieve intelligent and automated wastewater treatment; the on-site touch screen human-machine interface facilitates operation, monitoring, data storage and retrieval, and the remote communication module supports remote operation and maintenance, greatly improving operation and maintenance efficiency and flexibility. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0019] Figure 1 This is a top-view sectional view of the main body of the container of this utility model;

[0020] Figure 2 This is a front-view sectional view of the main body of the container of this utility model;

[0021] Figure 3 This is a front view of the container body of this utility model;

[0022] Figure 4 This is a cross-sectional view of the dissolved oxygen cone of this utility model;

[0023] In the diagram: 1. Treatment water tank; 101. Equipment installation room; 1011. Diesel generator; 1012. Distribution cabinet; 1013. Oxygen generator; 1014. Chemical dosing device; 102. Water outlet; 103. Water inlet; 104. Chemical dosing port; 105. Lifting ring; 106. Hydraulic support foot; 2. Dissolved oxygen cone; 201. Water inlet; 202. Oxygen inlet; 3. Circulating water pump; 301. First bevel gear; 4. Rotary motor; 401. Output shaft; 402. Second bevel gear; 5. Aeration ring pipe; 501. Branch pipe; 6. Venturi injector; 7. Mixing impeller. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Example 1

[0026] Reference Figures 1-4A mobile sewage treatment device for black and odorous water bodies in closed ponds in rural areas includes a container body. The equipment shell is modified from a standard container and constructed of high-strength corrosion-resistant steel, which has good sealing and sturdiness and can adapt to the complex outdoor environment in rural areas. The container body includes a treatment water tank 1 and an equipment installation room 101. The equipment installation room 101 is equipped with a diesel generator 1011, a power distribution cabinet 1012, an oxygen generator 1013 and a chemical dosing device 1014. The treatment water tank 1 is equipped with a circulating water pump 3. The sides of the treatment water tank 1 are respectively equipped with an inlet 103, an outlet 102 and a chemical dosing port 104. The inlet end of the circulating water pump 3 is connected to the inlet 103. The horizontal height of the outlet 102 is greater than that of the inlet 103. The treatment water tank 1 is equipped with a dissolved oxygen cone 2 and an aeration mechanism. An underwater agitator is also installed inside the container body.

[0027] The 1013 oxygen generator utilizes advanced molecular sieve pressure swing adsorption (PSA) technology, incorporating multiple sets of high-efficiency molecular sieve adsorption towers. It achieves air separation and oxygen enrichment through pressure changes. This oxygen generator can produce oxygen with a purity of over 93%, providing a sufficient gas source for subsequent supersaturated dissolved oxygen production. It also features low energy consumption, stable oxygen production, and can automatically adjust the oxygen production rate according to the equipment's processing needs.

[0028] The outlet of the circulating water pump 3 is connected to the inlet 201 of the dissolved oxygen cone 2 through a pipe. The oxygen inlet 202 of the dissolved oxygen cone 2 is connected to the oxygen generator 1013. The dissolved oxygen cone 2 is equipped with a high-pressure dissolved oxygen chamber. Under a specific pressure (2-5MPa), oxygen is injected into the water in the chamber through a specially designed micro-hole nozzle in the oxygen inlet 202.

[0029] The dissolved oxygen cone 2 is equipped with a mixing impeller 7. The input shaft of the mixing impeller 7 is connected to a first bevel gear 301. A rotary motor 4 is fixed on the outer wall of the container body. The output shaft 401 of the rotary motor 4 is fixed with a second bevel gear 402. The first bevel gear 301 and the second bevel gear 402 mesh. The rotary motor 4 can drive the mixing impeller 7 to rotate at high speed, so that oxygen and water are fully mixed under high pressure and high shear force, and quickly form supersaturated dissolved oxygen water.

[0030] The aeration mechanism includes an aeration ring pipe 5, which is connected to the bottom end of the Venturi injector 6, and multiple branch pipes 501 are connected to the inner wall of the aeration ring pipe 5.

[0031] The dissolved oxygenated water enters the aeration ring pipe 5 directly and is then evenly distributed into multiple branch pipes 501. Pulse-type aeration nozzles are installed at intervals on the branch pipes 501. The nozzles are equipped with electromagnetic control valves, which can spray supersaturated dissolved oxygen water into the pond water in the form of high-speed jets according to the preset pulse frequency (one pulse every 3-8 seconds) and duration (each pulse 0.5-2 seconds). This creates a strong water flow disturbance and oxygen diffusion effect, which greatly improves the dissolution and diffusion efficiency of oxygen in the water. Compared with traditional aeration methods, the oxygen utilization rate can be increased by 40%-60%.

[0032] Among them, a Venturi ejector 6 is provided between the outlet end of the circulating water pump 3 and the inlet end 201 of the dissolved oxygen cone 2, and the air inlet of the Venturi ejector 6 is connected to the oxygen generator 1013.

[0033] The circulating water pump 3 draws water from the pond into the treatment tank 1 through the inlet 103. The outlet 102 is located above the water surface and the spray direction can be adjusted. The circulating water pump 3 can draw water from the bottom of the pond, pressurize it, and spray it back into the pond, creating large-area water surface ripples and water circulation. Working in conjunction with the underwater agitator, it further enhances the overall fluidity and material exchange capacity of the pond water, allowing supersaturated dissolved oxygen to be evenly distributed to every corner of the pond.

[0034] The underwater mixers are installed at the bottom of the treatment tank 1 within the container body, below the pond's water surface. Multiple adjustable-angle underwater mixers are mounted on the tank. The mixer body is made of stainless steel, and the blades are designed with a special twisted curved shape, generating strong axial and radial thrust during rotation. The mixer speed is adjustable from 15-60 rpm. By changing the mixer's angle and speed, complex water flow circulation can be created at different depths and in different areas of the pond, thoroughly agitating and mixing the bottom sludge and water. This promotes the contact reaction between black and odorous substances and oxygen, accelerating the decomposition and transformation of pollutants.

[0035] The container body has four lifting rings 105 fixed at the top corners and four hydraulic support feet 106 installed at the bottom corners, which can stably place and level the equipment on the edge of a pond with different terrains.

[0036] The reagent dispenser 1014 includes a reagent storage tank and a metering and dispensing device;

[0037] The chemical storage tanks contain acid-base regulators (such as lime and sulfuric acid) for adjusting the pH of pond water, nutrients for promoting microbial growth (such as NPK compound fertilizer), and flocculants (such as polyaluminum chloride and polyacrylamide) to aid in flocculation and sedimentation. The storage tanks are made of corrosion-resistant materials and are equipped with level sensors and stirring devices to ensure uniform mixing and stable storage of the chemicals.

[0038] The metering and dosing device is connected to the chemical storage tank and uses a high-precision metering pump to add chemicals to the pond water according to preset dosages and time intervals. The metering pump can automatically adjust the dosage based on pond water quality monitoring data (such as pH value, ammonia nitrogen concentration, turbidity, etc.), precisely controlling the use of chemicals to optimize treatment effects and reduce chemical costs. For example, when the pond water is too acidic, the amount of lime added is automatically increased; when the ammonia nitrogen content in the water is high, an appropriate amount of nutrients is added to promote the growth and reproduction of nitrifying bacteria and accelerate the conversion of ammonia nitrogen.

[0039] Example 2

[0040] The difference between this embodiment and Embodiment 1 is that it also includes an intelligent control system, which includes a control host, a human-machine interface, and a remote communication module.

[0041] The control unit uses a programmable logic controller (PLC) as its core control element. It connects to and controls the operation of all equipment, including the oxygen generator 1013, the chemical dosing device 1014, the aeration mechanism, the underwater agitator, and the circulating water pump 3. Through sensor arrays (including dissolved oxygen, pH, turbidity, and ammonia nitrogen sensors) located at different positions in the pond, it collects multi-dimensional water quality data in real time. Based on preset processing algorithms and models, it automatically adjusts the operating parameters of the equipment, such as the oxygen production rate of the oxygen generator, the pulse frequency and duration of the integrated dissolved oxygen and aeration device, the rotation speed and angle of the agitator, and the dosage of chemicals, thus achieving intelligent, automated, and precise wastewater treatment.

[0042] The human-machine interface (HMI) is a touchscreen located on the outer wall of the container, facilitating on-site operation and monitoring of the equipment. The interface displays real-time equipment operating status, water quality data collected by various sensors, and equipment fault alarm information. Users can also manually input control commands through the interface, such as emergency stop, modification of preset parameters, and initiation of equipment self-test programs. Furthermore, the HMI includes data storage and historical data query functions, recording equipment operation logs and water quality change curves, providing data support for equipment maintenance management and treatment effect evaluation.

[0043] The remote communication module, integrated into the control host, can transmit equipment operating data and water quality monitoring data to a remote monitoring center or the mobile terminal of management personnel via 4G / 5G or wireless networks. Management personnel can remotely view equipment operation status anytime, anywhere, receive fault alarm notifications, and remotely adjust some equipment parameters, achieving remote monitoring and management of the equipment and greatly improving equipment operation and maintenance efficiency and flexibility.

[0044] Working Principle: The equipment is hoisted to the edge of a closed rural pond by a crane, and the hydraulic support feet 106 are lowered and leveled. The oxygen generator 1013 is activated to produce high-purity oxygen. Part of the oxygen is initially mixed with circulating water through the intake port of the Venturi injector 6 before entering the dissolved oxygen cone 2. The other part enters directly into the dissolved oxygen cone 2, where it mixes with water under high pressure to form supersaturated dissolved oxygen water. This supersaturated dissolved oxygen water is then sprayed into the pond water at high speed through pulse aeration nozzles. Simultaneously, the underwater agitator and circulating water pump work together to create a complex circulation flow in the pond water, evenly distributing the supersaturated dissolved oxygen and ensuring sufficient contact with the black and odorous substances. The intelligent control system automatically controls the operating parameters of each device based on data from the pond water quality sensors, and activates the chemical dosing device 1014 at appropriate times to adjust the chemical environment of the pond water, promoting the decomposition, transformation, flocculation, and sedimentation of pollutants. During the treatment process, operators can monitor the equipment operation and water quality changes in real time through a human-machine interface or a remote monitoring terminal to ensure that the treatment effect achieves the expected goals. After treatment is completed, the equipment can be hoisted to the next pond for continued operation.

[0045] During use, the equipment automatically adjusts its operating parameters based on sensor data. For example, if the dissolved oxygen concentration in a certain area of ​​the pond is low, the pulse frequency and duration of the oxygen generator 1013 and aeration mechanism in that area are increased. If the water turbidity is high, the flocculant dosing system is activated according to a preset program to add flocculants. Operators can view the equipment's operating status and water quality data on-site through a human-machine interface, or remotely monitor and operate the equipment via a remote monitoring terminal. Once the pond water quality reaches the predetermined treatment standard, the equipment is stopped, the remaining water and chemicals are drained, the inlet and outlet pipes connecting inlet 103 and outlet 102 are retracted, and the equipment is transported to the next pond requiring treatment.

[0046] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "join," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mobile sewage treatment device for black and odorous water bodies in enclosed ponds in rural areas, comprising a container body, characterized in that: The container body includes a treatment water tank (1) and an equipment installation room (101). The equipment installation room (101) is equipped with a diesel generator (1011), a power distribution cabinet (1012), an oxygen generator (1013), and a chemical dosing device (1014). The treatment water tank (1) is equipped with a circulating water pump (3). The side of the treatment water tank (1) is equipped with an inlet (103), an outlet (102), and a chemical dosing port (104). The inlet end of the circulating water pump (3) is connected to the inlet (103). The horizontal height of the outlet (102) is greater than that of the inlet (103). The treatment water tank (1) is equipped with a dissolved oxygen cone (2) and an aeration mechanism. The container body is also equipped with an underwater agitator.

2. The mobile sewage treatment equipment for black and odorous water bodies in enclosed rural ponds according to claim 1, characterized in that: The outlet of the circulating water pump (3) is connected to the inlet (201) of the dissolved oxygen cone (2) through a pipe, and the oxygen inlet (202) of the dissolved oxygen cone (2) is connected to the oxygen generator (1013).

3. A mobile sewage treatment device for black and odorous water bodies in enclosed rural ponds according to claim 2, characterized in that: A Venturi ejector (6) is also provided between the outlet of the circulating water pump (3) and the inlet (201) of the dissolved oxygen cone (2), and the air inlet of the Venturi ejector (6) is connected to the oxygen generator (1013).

4. A mobile sewage treatment device for black and odorous water bodies in enclosed rural ponds according to claim 2, characterized in that: The aeration mechanism includes an aeration ring pipe (5), which is connected to the bottom end of the venturi injector (6), and multiple branch pipes (501) are connected to the inner wall of the aeration ring pipe (5).

5. A mobile sewage treatment device for black and odorous water bodies in enclosed rural ponds according to claim 2, characterized in that: The dissolved oxygen cone (2) is equipped with a mixing impeller (7), and a first bevel gear (301) is connected to the input shaft of the mixing impeller (7). A rotary motor (4) is fixed on the outer wall of the container body, and a second bevel gear (402) is fixed on the output shaft (401) of the rotary motor (4). The first bevel gear (301) meshes with the second bevel gear (402).

6. A mobile sewage treatment device for black and odorous water bodies in enclosed rural ponds according to claim 1, characterized in that: The container body has four lifting rings (105) fixed at the top corners and hydraulic support feet (106) installed at the bottom corners.

Images