A photovoltaic-driven, gantry-type integrated maintenance system for sewage treatment ponds

Abstract

This utility model discloses a photovoltaic-driven traveling crane-type integrated maintenance system for sewage treatment tanks, relating to the field of sewage treatment technology. It includes a sewage tank, a photovoltaic power generation system, and a traveling crane platform mounted above the sewage tank. A robotic arm controlled by a PLC controller is installed on the traveling crane platform. The free end of the robotic arm is equipped with cleaning nozzles for cleaning the tank walls or tooling fixtures for installing and replacing sewage tank parts. The power output of the photovoltaic power generation system is connected to an energy storage system, and the power outputs of both the photovoltaic power generation system and the energy storage system are connected to the electrical equipment in the sewage tank. This utility model uses a traveling crane and robotic arm linkage to replace traditional manual cleaning and hoisting maintenance methods. Combined with the photovoltaic power generation system, it significantly improves the efficiency of sewage tank maintenance and treatment while reducing maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a photovoltaic-driven trolley-type integrated maintenance system for wastewater treatment tanks. Background Technology

[0002] In the daily operation of wastewater treatment plants, regular cleaning of wastewater tanks and maintenance or replacement of components are crucial for ensuring treatment efficiency. However, existing technologies have many shortcomings in these areas:

[0003] 1. Wastewater treatment tanks are typically cleaned manually on a regular schedule. When manually rinsing the inner walls of the tank, workers must first descend to the bottom. The bottom of the tank often accumulates large amounts of corrosive sludge and toxic gases such as hydrogen sulfide and ammonia. Even with prior ventilation, there is still a risk of poisoning due to excessive gas concentrations. Furthermore, the slippery bottom of the tank makes it easy for workers to lose their balance and slip while using high-pressure water guns, leading to falls and other accidents. In addition, manual rinsing cannot cover the top, corners, and other high and hidden areas of the tank, resulting in incomplete cleaning. Residual dirt can breed bacteria, affecting subsequent wastewater treatment. Moreover, the area that a single person can clean in a day is limited. For large wastewater tanks, it often requires multiple people working together for several days to complete the task, significantly increasing labor costs and maintenance time.

[0004] 2. Existing technologies generally employ hoisting methods for maintenance or replacement of components. Traditional hoisting systems often use temporary steel frames or simple supports fixed to the pool's edge. Long-term exposure to the damp environment surrounding the wastewater pool makes these supports prone to corrosion and loosening, leading to reduced load-bearing capacity. When hoisting heavy equipment such as MBR membrane modules, the support structure may collapse, causing equipment damage and personnel injury. Furthermore, the lack of precise positioning devices during hoisting relies entirely on operator experience. In windy conditions, the hoisted load is prone to swaying and rotation, making accurate alignment and installation difficult. This not only affects maintenance efficiency but also risks accidents due to collisions with the pool or other equipment. Additionally, existing hoisting systems generally lack effective safety measures such as fall arrest nets and emergency braking devices. If the hoisting equipment breaks or the ropes detach, personnel or items will fall directly, with potentially disastrous consequences.

[0005] 3. Energy supply issues: Existing sewage treatment plants mainly rely on the municipal power grid to supply a large amount of electricity for the operation of sewage pumps, aeration equipment, lighting systems, etc., which greatly increases operating costs. Sewage treatment plants occupy a large area, and areas such as the sewage tanks and building roofs have good conditions for laying photovoltaic power generation panels. However, most existing sewage treatment plants do not make effective use of these spaces, resulting in increased operation and maintenance costs, which needs to be improved. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the above-mentioned technologies and provide a photovoltaic-driven trolley-type integrated maintenance system for sewage treatment ponds. This system uses a linkage between the trolley and the robotic arm to replace the traditional manual cleaning and hoisting maintenance methods. In addition, it combines a photovoltaic power generation system, which greatly improves the efficiency of sewage pond maintenance and treatment and reduces maintenance costs.

[0007] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0008] A photovoltaic-driven, mobile, integrated maintenance system for a wastewater treatment tank includes a wastewater tank. It is characterized by further including a photovoltaic power generation system and a mobile platform device mounted above the wastewater tank. The mobile platform device is equipped with a robotic arm controlled by a PLC controller. The free end of the robotic arm is equipped with a cleaning nozzle for cleaning the tank wall or a tooling fixture for installing and replacing wastewater tank accessories. The power output terminal of the photovoltaic power generation system is connected to an energy storage system, and the power output terminals of the photovoltaic power generation system and the energy storage system are respectively connected to the electrical equipment in the wastewater tank.

[0009] A further improvement of this utility model is that the photovoltaic power generation system includes photovoltaic modules, which are installed on the roof of the sewage treatment plant building via brackets. The power output terminals of the photovoltaic modules are sequentially connected to the electrical equipment in the sewage tank and the energy storage system via a photovoltaic inverter and a distribution box. The energy storage system is connected to the distribution box via a bidirectional energy storage inverter. After the photovoltaic modules convert light energy into electrical energy, the electrical energy is converted by the photovoltaic inverter and a portion of the electrical energy is distributed to the electrical equipment in the sewage tank by the distribution box. The other portion is converted into DC power by the bidirectional energy storage inverter to charge the battery pack of the energy storage system. When the power demand of the sewage tank is high, the battery pack of the energy storage system converts the DC power into AC power through the bidirectional energy storage inverter and supplements the power supply through the distribution box to ensure the stable operation of the electrical equipment.

[0010] A further improvement of this utility model is that the traveling platform device includes a steel structure traveling beam disposed above both sides of the sewage tank. The steel structure traveling beam is fixedly disposed by a number of concrete columns. A first track is laid on the top of the steel structure traveling beam. A traveling body that can move along the length direction of the first track is installed across the first track. A second track is laid on the top surface of the traveling body along its length direction. A moving trolley that can move along its length direction is disposed on the second track. A robotic arm is fixedly installed on the side wall of the moving trolley. Through the arrangement of the traveling body and the moving trolley, the robotic arm can move in the longitudinal and transverse directions on the sewage tank. Through the characteristics of the robotic arm itself, the free end can move vertically up and down, thereby realizing the movement of the robotic arm in any direction on the sewage tank.

[0011] A further improvement of this invention is that the robotic arm is a 6-axis articulated robotic arm, which has a wide working range, high flexibility, and smoother movements.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model adopts a combination of a traveling platform device and a robotic arm to replace the traditional manual cleaning and hoisting replacement methods. The traveling platform device can ensure support stability and solve the safety hazards of traditional hoisting systems. The free end of the robotic arm can detachably replace the cleaning nozzles and tooling fixtures, thereby realizing high-pressure rinsing of the pool wall and replacement of internal components.

[0014] 2. This utility model can achieve efficient energy supply by setting up a photovoltaic power generation system and an energy storage system. It can utilize the conditions of the sewage treatment plant itself to lay photovoltaic modules and generate electricity using solar energy, thereby reducing the power supply from the municipal power grid and lowering operation and maintenance costs and electricity costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] In the diagram: 1. Sewage tank; 2. Photovoltaic power generation system; 3. Overhead crane platform device; 4. Robotic arm; 5. Energy storage system; 2.1. Photovoltaic modules; 2.2. Support frame; 6. Distribution box; 3.1. Steel structure overhead crane beam; 3.2. Concrete column; 3.3. First track; 3.4. Overhead crane body; 3.5. Second track; 3.6. Mobile trolley. Detailed Implementation

[0017] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0018] like Figure 1 As shown, a photovoltaic-driven gantry-type integrated maintenance system for sewage treatment tanks includes a sewage tank 1, a photovoltaic power generation system 2, and a gantry platform device 3 mounted above the sewage tank 1. The gantry platform device 3 is equipped with a robotic arm 4 controlled by a PLC controller. The free end of the robotic arm 4 is equipped with a cleaning nozzle for cleaning the tank wall or a tooling fixture for installing and replacing parts of the sewage tank 1. The power output terminal of the photovoltaic power generation system 2 is connected to an energy storage system 5. The power output terminals of the photovoltaic power generation system 2 and the energy storage system 5 are respectively connected to the electrical equipment of the sewage tank 1.

[0019] In this embodiment, the photovoltaic power generation system 2 includes a photovoltaic module 2.1, which is installed on the roof of the sewage treatment plant building via a bracket 2.2. The power output of the photovoltaic module 2.1 is sequentially connected to the electrical equipment of the sewage tank 1 and the energy storage system 5 via a photovoltaic inverter and a distribution box 6. The energy storage system 5 and the distribution box 6 are connected via a bidirectional energy storage inverter. After the photovoltaic module 2.1 converts light energy into electrical energy, the electrical energy is converted by the photovoltaic inverter and a portion of the electrical energy is distributed to the electrical equipment of the sewage tank 1 by the distribution box 6. The other portion is converted into DC power by the bidirectional energy storage inverter to charge the battery pack of the energy storage system 5. When the power demand of the sewage tank 1 is high, the battery pack of the energy storage system 5 converts the DC power into AC power through the bidirectional energy storage inverter and supplements the power supply through the distribution box 6 to ensure the stable operation of the electrical equipment.

[0020] In this embodiment, the traveling platform device 3 includes a steel structure traveling beam 3.1 disposed above both sides of the sewage tank 1. The steel structure traveling beam 3.1 is fixedly disposed by several concrete columns 3.2. A first track 3.3 is laid on the top of the steel structure traveling beam 3.1. A traveling body 3.4 that can move along the length direction of the first track 3.3 is installed across the first track 3.3. A second track 3.5 is laid on the top surface of the traveling body 3.4 along its length direction. A moving trolley 3.6 that can move along its length direction is disposed on the second track 3.5. A robotic arm 4 is fixedly installed on the side wall of the moving trolley 3.6. Through the arrangement of the traveling body 3.4 and the moving trolley 3.6, the robotic arm 4 can move in the longitudinal and transverse directions on the sewage tank 1. Through the characteristics of the robotic arm 4 itself, the free end can move vertically up and down, thereby realizing the movement of the robotic arm 4 in any direction on the sewage tank 1.

[0021] In this embodiment, the robotic arm 4 is a 6-axis articulated robotic arm 4, which has a wide working range, high flexibility, and smoother movements.

[0022] It should be noted that the photovoltaic power generation system 2, energy storage system 5, vehicle platform device 3, and robotic arm 4 involved in this patent are all existing mature technologies.

[0023] The photovoltaic power generation system 2, including photovoltaic modules 2.1, support structures 2.2, photovoltaic inverters, and distribution boxes 6, is widely used in the field of solar power generation. The principles and working methods of its conversion of light energy into electrical energy, and its electrical energy conversion and distribution, are common knowledge in this field. The energy storage system 5, along with its battery packs and bidirectional energy storage inverters, also represents existing conventional technologies for power storage and supplementary power supply. The mode of balancing electricity demand through energy storage and discharge is common in various power systems.

[0024] The steel structure crane beam 3.1, concrete columns 3.2, rails, crane body 3.4, and moving trolley 3.6 components of the overhead crane platform device 3 are conventional structural forms used in the industrial field to realize the movement of heavy objects or the carrying of equipment. Their method of moving components via rails has been applied in various industrial scenarios. Meanwhile, the 6-axis articulated robotic arm 4, as a common type of industrial robotic arm 4, has been maturely applied in various automated operation scenarios due to its wide operating range, high flexibility, and smooth operation.

[0025] The innovation of this utility model does not lie in improving these individual existing technologies themselves, but in organically integrating the photovoltaic power generation system 2, energy storage system 5, traveling platform device 3, and robotic arm 4 to form a photovoltaic-driven traveling vehicle-type integrated system for maintaining sewage treatment ponds. This integration achieves high efficiency in energy supply and automation and intelligence in the maintenance of sewage treatment ponds, overcoming the drawbacks of traditional manual maintenance methods, improving maintenance efficiency and safety, and reducing operation and maintenance costs. This is the core value of this utility model.

[0026] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A photovoltaic drive driving type sewage treatment tank maintenance integrated system comprising a sewage tank, characterized in that, It also includes a photovoltaic power generation system and a traveling platform device installed above the sewage tank. The traveling platform device is equipped with a robotic arm controlled by a PLC controller. The free end of the robotic arm is equipped with a cleaning nozzle for cleaning the tank wall or a tooling fixture for grabbing and replacing sewage tank parts. The power output terminal of the photovoltaic power generation system is connected to an energy storage system. The power output terminals of the photovoltaic power generation system and the energy storage system are respectively connected to the electrical equipment of the sewage tank.

2. The integrated system for maintaining a photovoltaic-driven raceway wastewater treatment pond according to claim 1, wherein, The photovoltaic power generation system includes photovoltaic modules, which are installed on the roof of the sewage treatment plant building via brackets. The power output terminals of the photovoltaic modules are sequentially connected to the electrical equipment in the sewage tank and the energy storage system via a photovoltaic inverter and a distribution box. The energy storage system and the distribution box are connected via a bidirectional energy storage inverter.

3. The integrated system for maintaining a photovoltaic-driven raceway wastewater treatment pond according to claim 1, wherein, The overhead crane platform device includes a steel structure overhead crane beam installed above both sides of the sewage tank. The steel structure overhead crane beam is fixed by several concrete columns. A first track is laid on the top of the steel structure overhead crane beam. A crane body that can move along the length of the first track is installed across the first track. A second track is laid on the top surface of the crane body along its length. A mobile trolley that can move along its length is installed on the second track. A robotic arm is installed and fixed on the side wall of the mobile trolley.

4. The integrated system for maintaining a photovoltaic-driven raceway wastewater treatment pond according to claim 1, wherein, The robotic arm is a 6-axis articulated robotic arm.

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