Water treatment biological tank blast control cabinet

Abstract

The application relates to the technical field of sewage treatment, and provides a water treatment biological pool air blowing control cabinet, which comprises a cabinet body, and the inside of the cabinet body is provided with a dissolved oxygen transmitter signal interface, a programmable logic controller, a plurality of adjusting valve control modules and a communication expansion module. The dissolved oxygen transmitter signal interface is used for connecting an external dissolved oxygen sensor to input a biological pool dissolved oxygen concentration signal. The input terminal of the programmable logic controller is connected with the dissolved oxygen transmitter signal interface. The plurality of adjusting valve control modules are arranged in parallel among the adjusting valve control modules, and the input terminals of the adjusting valve control modules are respectively connected with the output terminals of the programmable logic controller. The input terminal of the communication expansion module is connected with the communication port of the programmable logic controller, and the output terminal is connected with an external air blower control system. An industrial switch is connected with the Ethernet port of the programmable logic controller. The water treatment biological pool air blowing control cabinet provided by the application realizes precise energy-saving aeration through the cooperation of the partition oxygen control and the anti-interference structure.

Description

Technical Field

[0001] This application relates to the field of wastewater treatment technology, and more specifically, to a blower control cabinet for a biological treatment tank. Background Technology

[0002] Currently, existing aeration systems for biological treatment tanks in wastewater treatment plants generally suffer from high energy consumption and lagging control. Traditional control cabinets rely on manual monitoring of dissolved oxygen data, but fluctuations in water quality or changes in microbial activity can easily lead to inaccurate aeration rates, resulting in insufficient aeration leading to excessive effluent or excessive aeration causing a surge in energy consumption. Related technologies adjust the blower frequency, but this cannot achieve precise oxygen control across multiple biological tank zones, and the actuators often use single-valve control, resulting in slow response and an inability to balance differences in oxygen demand between zones. Furthermore, the mixing of high-voltage and low-voltage electrical components within the control cabinet causes signal interference, leading to sensor data drift and malfunctions of the programmable logic controller (PLC). Frequent manual adjustments to blower parameters are inefficient, and sudden power outages can cause system malfunctions, severely hindering the stable operation of wastewater treatment plants. Utility Model Content

[0003] This application aims to at least address the technical problems of high energy consumption and lagging regulation in existing wastewater treatment biological tank aeration systems.

[0004] To solve the above-mentioned technical problems, this application is implemented as follows:

[0005] This application provides a blower control cabinet for a biological treatment tank, including a cabinet body. Inside the cabinet are: a dissolved oxygen transmitter signal interface for connecting an external dissolved oxygen sensor to input the dissolved oxygen concentration signal of the biological tank; a programmable logic controller (PLC) with its input terminals connected to the dissolved oxygen transmitter signal interface; multiple regulating valve control modules connected in parallel, with each module's input terminal connected to the PLC's output terminal; a communication expansion module with its input terminal connected to the PLC's communication port and its output terminal connected to an external blower control system; and an industrial switch connected to the PLC's Ethernet port.

[0006] The aeration control cabinet for the biological treatment tank provided in this application achieves precise and energy-saving aeration through the synergy of zoned oxygen control and anti-interference structure. Specifically, in the scenario of precise dissolved oxygen regulation: the dissolved oxygen transmitter signal interface is connected to the programmable logic controller (PLC) via a shielded cable to collect the dissolved oxygen concentration of the biological tank in real time; the input terminals of multiple regulating valve control modules are respectively connected to the output terminals of the PLC, and the output terminals of each regulating valve control module are connected to the power interface of the regulating valve actuator of the corresponding biological tank area. The PLC independently controls the valve opening through a zoned PID algorithm to achieve dynamic balance of dissolved oxygen concentration in multiple areas. In the scenario of ensuring system reliability: the equipment grounding busbar is bolted to the cabinet frame and connected to the grounding terminal of the main circuit breaker; the signal grounding busbar is independently connected to the shielding layer of the PLC, the dissolved oxygen transmitter signal interface, and the communication expansion module; the two grounding busbars are connected at a single point by a wire to isolate strong electrical interference; the input terminal of the uninterruptible power supply (UPS) host is connected to the main circuit breaker via the UPS circuit breaker, and the output terminal is connected to the power terminals of the PLC and key instruments; the battery is directly connected to the UPS host to maintain the operation of the core system when the main power is interrupted. In the scenario of zoned oxygen control: the input terminals of multiple regulating valve circuit breakers are connected in parallel to the output terminal of the main circuit breaker, and the output terminals of each circuit breaker are connected to the power interface of the corresponding actuator; when the dissolved oxygen in a certain biological tank area is lower than the set threshold, the programmable logic controller increases the opening command of the corresponding regulating valve, and the current signal drives the valve actuator through the control module; when the dissolved oxygen in the entire area continues to exceed the standard, the communication expansion module sends a frequency reduction command to the magnetic levitation blower to achieve coordinated adjustment of the total air volume. In the scenario of operation and maintenance interference resistance: the touch screen and the matrix-arranged power supply indicator and fault indicator are fixed on the inside of the front door with bolts; the industrial switch is connected to the programmable logic controller and the touch screen through the network cable; the cable management rack is welded on the inside of the rear door, and the neutral busbar is fixed on top of it; the cooling fan on the top of the cabinet and the louvers on the side panel form a convection cooling channel to dissipate heat from the control cabinet; the cables enter the electrical control cabinet through the rubber ring nested inside the knock-out hole to improve the safety of the cable arrangement.

[0007] The control cabinet provided in this application achieves precise dissolved oxygen regulation, stable system operation, and emergency protection against sudden power outages through a zoned oxygen control structure, dual grounding anti-interference design, and uninterruptible power supply. This reduces energy consumption and ensures continuous and compliant discharge of treated wastewater.

[0008] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0009] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0010] Figure 1This is a schematic diagram of the internal structure of the blower control cabinet of a water treatment biological tank according to an embodiment of this application;

[0011] Figure 2 This is a schematic diagram of the front structure of the blower control cabinet of a water treatment biological tank according to an embodiment of this application;

[0012] Figure 3 This is a schematic diagram of the side structure of the blower control cabinet of a water treatment biological tank according to an embodiment of this application;

[0013] Figure 4 This is a schematic diagram of the top structure of the blower control cabinet of a water treatment biological tank according to an embodiment of this application;

[0014] Figure 5 This is a schematic diagram of the bottom structure of the blower control cabinet of a water treatment biological tank according to an embodiment of this application.

[0015] in, Figures 1 to 5 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0016] 100 Water treatment biological tank blower control cabinet, 110 Cabinet body, 120 Dissolved oxygen transmitter signal interface, 130 Programmable Logic Controller, 140 Control valve control module, 142 Control valve circuit breaker, 144 First control valve circuit breaker, 146 Second control valve circuit breaker, 148 Third control valve circuit breaker, 150 Communication expansion module, 152 Industrial switch, 154 Main circuit breaker, 156 Equipment grounding busbar, 158 Signal grounding busbar, 160 Uninterruptible power supply main unit, 162 Uninterruptible power supply circuit breaker, 164 Battery block, 166 Front door, 168 Front cabinet door handle Hand, 170 Touch display screen, 172 System power supply indicator, 174 Uninterruptible power supply indicator, 176 System fault indicator, 178 System emergency stop indicator, 180 Rear door, 182 Cable management rack, 184 Neutral busbar, 186 Cooling fan, 188 Fan hole, 190 Louvers, 192 Knockout hole, 194 Rubber ring, 196 File bag, 198 Front door bottom plate, 200 Rear door bottom plate, 202 Control circuit breaker, 204 Power circuit breaker, 206 Lighting circuit breaker, 208 Socket circuit breaker, 210 Spare circuit breaker, 212 Rear cabinet door handle. Detailed Implementation

[0017] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0019] The following reference Figures 1 to 5 This application describes a water treatment biological tank blower control cabinet 100 provided according to some embodiments of the present application.

[0020] like Figures 1 to 5 As shown, Figure 1 This is a schematic diagram of the internal structure of the cabinet 110 of the blower control cabinet 100 for a water treatment biological tank according to an embodiment of this application. Figure 2 This is a schematic diagram of the front structure of the cabinet 110 of the blower control cabinet 100 for a biological water treatment tank according to an embodiment of this application. Figure 3 This is a schematic diagram of the side structure of the cabinet 110 of the blower control cabinet 100 for a biological water treatment tank according to an embodiment of this application. Figure 4 This is a schematic diagram of the top structure of the cabinet 110 of the blower control cabinet 100 for a biological water treatment tank according to an embodiment of this application. Figure 5 This is a schematic diagram of the bottom structure of the cabinet 110 of the blower control cabinet 100 for a water treatment biological tank according to an embodiment of this application.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of this application provides a water treatment biological tank blower control cabinet 100, including a cabinet 110. The cabinet 110 contains: a dissolved oxygen transmitter signal interface 120 for connecting to an external dissolved oxygen sensor to input the dissolved oxygen concentration signal of the biological tank; a programmable logic controller (PLC) 130, whose input terminals are connected to the dissolved oxygen transmitter signal interface 120; multiple regulating valve control modules 140 connected in parallel, with each regulating valve control module 140's input terminal connected to the PLC 130's output terminal; a communication expansion module 150, whose input terminal is connected to the PLC 130's communication port and whose output terminal is connected to an external blower control system; and an industrial switch 152 connected to the PLC 130's Ethernet port.

[0022] like Figure 1 , Figure 2 and Figure 3As shown, the water treatment biological tank blower control cabinet 100 provided in this application includes a cabinet 110. The cabinet 110 contains a dissolved oxygen transmitter signal interface 120, a programmable logic controller (PLC) 130, multiple regulating valve control modules 140, a communication expansion module 150, and an industrial switch 152. The dissolved oxygen transmitter connects to an external dissolved oxygen sensor via the dissolved oxygen transmitter signal interface 120 to input the dissolved oxygen concentration signal of the biological tank. The input terminals of the PLC 130 are connected to the dissolved oxygen transmitter signal interface 120. The multiple regulating valve control modules 140 are connected in parallel, and the input terminals of each regulating valve control module 140 are connected to the output terminals of the PLC 130. The input terminal of the communication expansion module 150 is connected to the communication port of the PLC 130, and its output terminal is connected to an external blower control system. The industrial switch 152 is connected to the Ethernet port of the PLC 130. The programmable logic controller 130 is configured to: independently adjust the valve opening of the corresponding biological pool area through multiple regulating valve control modules 140; and send a blower frequency adjustment command through the communication expansion module 150 when the dissolved oxygen concentration in the biological pool area does not match the set value range.

[0023] Specifically, the dissolved oxygen transmitter signal interface 120 is connected to an external dissolved oxygen sensor via a cable, transmitting the current signal to the analog input module of the programmable logic controller 130. Multiple regulating valve control modules 140 are independent electrical circuits, each containing a circuit breaker and signal conversion circuit. Their input terminals receive the control voltage output from the programmable logic controller 130, and their output terminals are connected to the power interface of the regulating valve actuator in the corresponding biological tank area, enabling independent adjustment of the valve opening in each area. The communication expansion module 150 is connected to the blower control cabinet via an interface, transmitting protocol commands to the blower. One port of the industrial switch 152 is connected to the Ethernet port of the programmable logic controller 130 via a network cable, and the other port is connected to the touch display screen 170, establishing a control data exchange channel. The core control logic of the blower control cabinet 100 in the biological treatment tank is that the programmable logic controller 130 analyzes the dissolved oxygen concentration signal through a zoned PID algorithm, independently generates three regulating valve opening commands, and converts them into actuator drive signals via the regulating valve control module 140. When the dissolved oxygen in a certain area continuously exceeds the standard, a frequency adjustment command is sent to the blower through the communication expansion module 150, forming a control scheme of "primarily fine adjustment of zoned valves, supplemented by coordinated adjustment of total air volume". In this way, the dissolved oxygen concentration in each zone of the biological tank is controlled independently, improving the accuracy of dissolved oxygen control; the valve opening adjustment and blower frequency adjustment work together to avoid over-aeration, reduce the overall energy consumption of the blower, and the direct hardware connection structure design reduces signal relay links, avoids control response delay, and enhances system reliability.

[0024] Specifically, the organic matter content and microbial count in wastewater constantly alter oxygen demand. It is difficult to precisely adjust the airflow and frequency of aeration blowers manually based on these complex and constantly changing factors. Furthermore, manual control is inherently time-sensitive. The process from detecting insufficient or excessive dissolved oxygen to actually adjusting the aeration blower parameters can lead to substandard effluent quality or wasted blower energy. Manual negative feedback control based on real-time dissolved oxygen data from the biological tank is a gradual trial-and-error process. The target airflow is unclear, the blower operation frequency is high, and the requirements for operator skill and experience are extremely high. Prolonged operation using this method will reduce the blower's lifespan.

[0025] To ensure the normal operation of wastewater treatment, operators need to continuously monitor parameters such as dissolved oxygen content and aeration status for extended periods. They also need to monitor multiple aeration tanks simultaneously and manually adjust the blower frequency based on the data. Furthermore, due to the unstable nature of wastewater, various unforeseen events may occur, such as sudden changes in water quality or equipment malfunctions. These require timely responses from staff, increasing the workload and stress levels, and consequently, the risk of the wastewater exceeding safety standards.

[0026] It is evident that existing aeration systems for biological treatment tanks in wastewater treatment plants generally suffer from high energy consumption and lagging control. Traditional control cabinets rely on manual monitoring of dissolved oxygen data, but fluctuations in water quality or changes in microbial activity can easily lead to inaccurate aeration rates, resulting in insufficient aeration causing excessive effluent or excessive aeration causing a surge in energy consumption. Related technologies adjust the blower frequency, but this cannot achieve precise oxygen control across multiple biological tank zones, and the actuators often use single-valve control, resulting in slow response and an inability to balance differences in oxygen demand between zones. Furthermore, the mixing of high-voltage and low-voltage electrical components within the control cabinet causes signal interference, leading to sensor data drift and malfunctions of the programmable logic controller (PLC). Frequent manual adjustments to blower parameters are inefficient, and sudden power outages can cause system malfunctions, severely hindering the stable operation of wastewater treatment plants.

[0027] To address the shortcomings of existing technologies, such as Figure 1As shown, the purpose of this application is to provide a blower control cabinet 100 for a biological treatment tank, including a cabinet 110. The cabinet 110 contains: a dissolved oxygen transmitter signal interface 120 for connecting an external dissolved oxygen sensor to input the dissolved oxygen concentration signal of the biological tank; a programmable logic controller (PLC) 130, whose input terminals are connected to the dissolved oxygen transmitter signal interface 120; multiple regulating valve control modules 140 connected in parallel, with each regulating valve control module 140's input terminal connected to the output terminal of the PLC 130; a communication expansion module 150, whose input terminal is connected to the communication port of the PLC 130 and whose output terminal is connected to an external blower control system; and an industrial switch 152 connected to the Ethernet port of the PLC 130.

[0028] The aeration control cabinet 100 for the biological treatment tank provided in this application achieves precise and energy-saving aeration through the coordinated use of zoned oxygen control and an anti-interference structure. Specifically, in the scenario of precise dissolved oxygen regulation: the dissolved oxygen transmitter signal interface 120 is connected to the programmable logic controller 130 via a shielded cable to collect the dissolved oxygen concentration of the biological tank in real time; the input terminals of multiple regulating valve control modules 140 are respectively connected to the output terminals of the programmable logic controller 130, and the output terminals of each regulating valve control module 140 are connected to the power interface of the regulating valve actuator of the corresponding biological tank area. The programmable logic controller 130 independently controls the valve opening degree through a zoned PID algorithm to achieve dynamic balance of dissolved oxygen concentration in multiple areas. In the scenario of ensuring system reliability: the equipment grounding bus 156 is bolted to the frame of the cabinet 110 and connected to the grounding terminal of the main circuit breaker 154. The signal grounding bus 158 is independently connected to the shielding layer of the programmable logic controller 130, the dissolved oxygen transmitter signal interface 120, and the communication expansion module 150. The two grounding buses are connected at a single point by a wire to isolate strong electrical interference. The input terminal of the uninterruptible power supply host 160 is connected to the main circuit breaker 154 through the uninterruptible power supply circuit breaker 162, and the output terminal is connected to the power terminals of the programmable logic controller 130 and key instruments. The battery block 164 is directly connected to the uninterruptible power supply host 160, which can maintain the operation of the core system when the main power is interrupted. In the scenario of zoned oxygen control: the input terminals of multiple regulating valve circuit breakers 142 are connected in parallel to the output terminal of the main circuit breaker 154, and the output terminals of each circuit breaker are connected to the power interface of the corresponding actuator; when the dissolved oxygen in a certain biological tank area is lower than the set threshold, the programmable logic controller 130 increases the opening command of the corresponding regulating valve, and the current signal drives the valve actuator through the control module; when the dissolved oxygen in the entire area continues to exceed the standard, the communication expansion module 150 sends a frequency reduction command to the magnetic levitation blower to achieve coordinated adjustment of the total air volume. In operation and maintenance interference scenarios: The touch screen and the matrix-arranged power supply indicator and fault indicator are fixed to the inside of the front door 166 with bolts. The industrial switch 152 is connected to the programmable logic controller 130 and the touch screen 170 via a network cable. The cable management rack 182 is welded to the inside of the rear door 180, and the neutral busbar 184 is fixed on top of it. The cooling fan 186 on the top of the cabinet 110 and the louvers on the side panel 190 form a convection cooling air duct to dissipate heat from the control cabinet. The cables enter the electrical control cabinet through the rubber ring 194 nested inside the knockout hole 192 to improve the safety of cable routing.

[0029] The control cabinet provided in this application achieves precise dissolved oxygen regulation, stable system operation, and emergency protection against sudden power outages through a zoned oxygen control structure, dual grounding anti-interference design, and uninterruptible power supply. This reduces energy consumption and ensures continuous and compliant discharge of treated wastewater.

[0030] In specific applications, the aeration control cabinet 100 for a biological treatment tank can be specifically a blower control cabinet for a biological treatment tank in an MBR process, the programmable logic controller 130 can be specifically a PLC controller, and the uninterruptible power supply host 160 can be specifically a UPS power supply host. The specific selection can be made according to the actual usage, and will not be listed here. Specifically, this application discloses a blower control cabinet for a biological treatment tank in an MBR process. By installing a PLC controller, switch, and power supply within the cabinet 110, the aeration blower in the MBR process biological aeration tank can precisely adjust the blower frequency according to the dissolved oxygen concentration in the biological tank, making the entire wastewater treatment system more energy-efficient.

[0031] In some embodiments, optionally, such as Figure 1 , Figure 2 and Figure 3 As shown, the water treatment biological tank blower control cabinet 100 also includes a main circuit breaker 154, and multiple regulating valve control modules 140 include multiple regulating valve circuit breakers 142. The incoming terminals of the multiple regulating valve circuit breakers 142 are connected in parallel to the main circuit breaker 154, and the outgoing terminals of the multiple regulating valve circuit breakers 142 are connected to the power interface of the actuator of the corresponding regulating valve.

[0032] Specifically, such as Figure 1 As shown, the aeration control cabinet 100 of the water treatment biological tank also includes a main circuit breaker 154, and multiple regulating valve control modules 140 include multiple regulating valve circuit breakers 142. The incoming terminals of the multiple regulating valve circuit breakers 142 are connected in parallel to the main circuit breaker 154, and the outgoing terminals of the multiple regulating valve circuit breakers 142 are connected to the power interface of the actuator of the corresponding regulating valve.

[0033] Specifically, the main circuit breaker 154 is an air switch, and its output terminal is connected in parallel to the input terminals of multiple regulating valve circuit breakers 142. The output terminal of each regulating valve circuit breaker 142 is directly connected to the terminal of the power interface of the corresponding regulating valve actuator. The power interface of the actuator adopts a three-core waterproof socket, in which the N terminal is uniformly connected to the neutral busbar 184, and the PE terminal is connected to the equipment grounding busbar 156, forming a complete high-voltage control circuit.

[0034] Specifically, the multiple regulating valve control modules 140 can be configured as three. Taking three regulating valve control modules 140 including three regulating valve circuit breakers 142 as an example, the three regulating valve circuit breakers 142 can be specifically a first regulating valve circuit breaker 144, a second regulating valve circuit breaker 146, and a third regulating valve circuit breaker 148. The regulating valve control modules 140 and the first regulating valve circuit breaker 144 regulate the valve opening of biological pool area 1; the regulating valve control modules 140 and the second regulating valve circuit breaker 146 regulate the valve opening of biological pool area 2; and the regulating valve control modules 140 and the third regulating valve circuit breaker 148 regulate the valve opening of biological pool area 3. That is, the first regulating valve circuit breaker 144, the second regulating valve circuit breaker 146, and the third regulating valve circuit breaker 148 correspond to biological pool areas 1, 2, and 3, respectively, forming physically isolated independent control loops.

[0035] For the control link of area 1, the AO channel 1 of the programmable logic controller 130 outputs a signal to the first regulating valve control module, which in turn powers the first regulating valve circuit breaker 144. The power interface of actuator 1 drives the motor of the regulating valve in biological tank 1 to adjust the valve opening. For the control link of area 2, the AO channel 2 outputs a signal to the second regulating valve control module, which then powers the second regulating valve circuit breaker 146. The power interface of actuator 2 controls the motor of the regulating valve in biological tank 2 to adjust the valve opening. For the control link of area 3, the AO channel 3 outputs a signal to the third regulating valve control module, which then powers the third regulating valve circuit breaker 148. The power interface of actuator 3 regulates the motor of the regulating valve in biological tank 3 to adjust the valve opening. Dissolved oxygen data from each biological tank is independently collected and transmitted to the PLC. The PLC runs a PID algorithm on each of the three areas to generate opening commands. The commands drive the dedicated actuators via the corresponding control modules and circuit breakers. Tripping any circuit breaker only affects the affected area; the remaining areas continue to aerate normally. In this way, independent adjustment of each zone ensures that the standard deviation of dissolved oxygen concentration in each biological tank is ≤0.15mg / L; avoids over-aeration in low-oxygen-demand areas, achieves a 95% matching rate of air volume between zones, and reduces overall air consumption by 18%; when a single zone fails for maintenance, the remaining zones can continue to operate, reducing system downtime to 1 / 5 of that of traditional designs.

[0036] In some embodiments, optionally, such as Figure 1 and Figure 2 As shown, the water treatment biological tank blower control cabinet 100 also includes: an equipment grounding bus 156, connected to the grounding terminal of the cabinet 110; and a signal grounding bus 158, connected to the shielded grounding terminal of the programmable logic controller 130, the dissolved oxygen transmitter signal interface 120, and the communication expansion module 150; wherein, the signal grounding bus 158 and the equipment grounding bus 156 are connected at a single point by a wire.

[0037] Specifically, such as Figure 1As shown, the blower control cabinet 100 for the biological water treatment tank also includes an equipment grounding busbar 156 and a signal grounding busbar 158. The equipment grounding busbar 156 is connected to the grounding terminal of the cabinet 110; the signal grounding busbar 158 is connected to the shielded grounding terminals of the programmable logic controller 130, the dissolved oxygen transmitter signal interface 120, and the communication expansion module 150; the signal grounding busbar 158 and the equipment grounding busbar 156 are connected at a single point via a wire.

[0038] Specifically, the equipment grounding busbar 156 is bolted to the mounting plate at the lower left corner of the cabinet 110. Its terminals connect to the metal frame of the cabinet 110, the PE terminal of the main circuit breaker 154, and the high-power equipment casing. The signal grounding busbar 158 is connected to the equipment grounding busbar 156 at a single point via copper wire. The shielded grounding terminal of the programmable logic controller 130, the dissolved oxygen transmitter signal interface 120, and the metal casing of the communication expansion module 150 are all connected to the signal grounding busbar 158, forming a complete signal anti-interference path. The dual grounding busbar structure reduces the induced voltage in the high-voltage circuit, eliminates sensor signal drift, and the single-point connection design shortens the grounding resistance detection time.

[0039] In some embodiments, optionally, such as Figure 1 and Figure 3 As shown, the water treatment biological tank blower control cabinet 100 also includes: an uninterruptible power supply (UPS) main unit 160, the input terminal of which is connected to the main circuit breaker 154 via an uninterruptible power circuit breaker 162, and the output terminal of which is connected to the power terminals of the programmable logic controller 130, the industrial switch 152, and the dissolved oxygen transmitter signal interface 120; and a battery block 164, which is connected to the UPS main unit 160 and is used to provide backup power for the programmable logic controller 130 and the industrial switch 152.

[0040] Specifically, such as Figure 3 As shown, the aeration control cabinet 100 for the biological treatment tank also includes an uninterruptible power supply (UPS) unit 160 and a battery pack 164. The input terminal of the UPS unit 160 is connected to the main circuit breaker 154 via an uninterruptible power breaker 162, and the output terminal of the UPS unit 160 is connected to the power terminals of the programmable logic controller (PLC) 130, the industrial switch 152, and the dissolved oxygen transmitter signal interface 120. The battery pack 164 is connected to the UPS unit 160 and provides backup power to the PLC 130 and the industrial switch 152. When the UPS unit 160 is operating, it provides regulated power to the power terminals of the PLC 130, the industrial switch 152, and the dissolved oxygen transmitter signal interface 120. When the UPS unit 160 is interrupted, the battery pack 164 provides regulated power to the power terminals of the PLC 130, the industrial switch 152, and the dissolved oxygen transmitter signal interface 120.

[0041] In some embodiments, optionally, such as Figure 1 and Figure 2 As shown, the water treatment biological tank blower control cabinet 100 also includes: a front door 166, located on the front side of the cabinet 110; a front door handle 168, located on the front door 166, for opening the front door 166; a touch display screen 170, located on the front door 166; and an industrial switch 152 connecting the programmable logic controller 130 and the touch display screen 170.

[0042] Specifically, the aeration control cabinet 100 for the biological treatment tank also includes a front door 166, a front door handle 168, and a touch screen 170. The front door 166 is located on the front side of the cabinet 110 and is used to open and close the cabinet 110. The front door handle 168 is located on the front door 166 and is used to open the front door 166. The touch screen 170 is located on the front door 166. The industrial switch 152 connects the programmable logic controller 130 and the touch screen 170, forming a human-machine interface for operators to set operating parameters via the touch screen 170.

[0043] In some embodiments, optionally, such as Figure 1 , Figure 2 and Figure 3 As shown, the blower control cabinet 100 for the biological water treatment tank also includes: a system power supply indicator light 172, located on the front door 166; an uninterruptible power supply indicator light 174, located on the front door 166, to one side of the system power supply indicator light 172; a system fault indicator light 176, located on the front door 166, below the system power supply indicator light 172; and a system emergency stop indicator light 178, located on the front door 166, to one side of the system fault indicator light 176.

[0044] Specifically, such as Figure 2 As shown, the aeration control cabinet 100 for the biological treatment tank also includes a system power supply indicator light 172, an uninterruptible power supply indicator light 174, a system fault indicator light 176, and a system emergency stop indicator light 178. The system power supply indicator light 172 is located on the front door 166; the uninterruptible power supply indicator light 174 is located on the front door 166, to the right of the system power supply indicator light 172; the system fault indicator light 176 is located on the front door 166, below the system power supply indicator light 172; and the system emergency stop indicator light 178 is located on the front door 166, to the right of the system fault indicator light 176. By setting up these indicator lights, it is possible to intuitively observe whether the key components in the power supply system of the control cabinet are operating normally, thereby improving the reliability of the aeration control cabinet 100 for the biological treatment tank.

[0045] In some embodiments, optionally, such as Figure 1As shown, the water treatment biological tank blower control cabinet 100 also includes: a rear door 180, located on the rear side of the cabinet body 110; a cable management rack 182, located inside the cabinet body 110, inside the rear door 180; and a neutral wire busbar 184, located inside the cabinet body 110, above the cable management rack 182.

[0046] Specifically, such as Figure 1 As shown, the blower control cabinet 100 for the water treatment biological tank also includes a rear door 180, a cable management rack 182, and a neutral busbar 184. The rear door 180 is located at the rear of the cabinet 110 and has a handle 212 for opening it. The cable management rack 182 is located inside the cabinet 110, inside the rear door 180, and is used to organize and secure the cables inside the cabinet, keeping them neat and orderly for easy maintenance, heat dissipation, and identification. The neutral busbar 184 is located inside the cabinet 110, above the cable management rack 182, and is used to collect the neutral wires of all AC power circuits, providing a common zero-potential reference point.

[0047] In some embodiments, optionally, such as Figure 4 and Figure 5 As shown, the water treatment biological tank blower control cabinet 100 also includes: a heat dissipation fan 186, which is located on the top of the cabinet 110; a fan hole 188, which is located on the top of the cabinet 110 for exhaust; and a louver 190, which is located on the front door 166 for air intake. The louver 190 and the fan hole 188 form a heat dissipation channel for the cabinet 110.

[0048] Specifically, such as Figure 4 As shown, the water treatment biological tank blower control cabinet 100 also includes a cooling fan 186, a fan opening 188, and louvers 190. The cooling fan 186 is located at the top of the cabinet 110; the fan opening 188 is located at the top of the cabinet 110 for exhaust; the louvers 190 are located at the front door 166 for air intake, and the louvers 190 and the fan opening 188 form a heat dissipation channel for the cabinet 110. By configuring the cooling fan 186, fan opening 188, and louvers 190, the interior of the water treatment biological tank blower control cabinet 100 is cooled and dissipated.

[0049] In some embodiments, optionally, such as Figure 5 As shown, the water treatment biological tank blower control cabinet 100 also includes: a knockout hole 192, which is located at the bottom of the cabinet 110 for cable entry and exit from the cabinet 110; and a rubber ring 194, which is fitted onto the knockout hole 192.

[0050] Specifically, such as Figure 5As shown, the blower control cabinet 100 for the biological water treatment tank also includes a knockout hole 192 and a rubber ring 194. The knockout hole 192 is located at the bottom of the cabinet 110 for cables to enter and exit the cabinet 110; the rubber ring 194 is fitted onto the knockout hole 192 to prevent the cables from being cut or damaged during installation and to improve the service life of the cables.

[0051] In some embodiments, optionally, such as Figure 3 As shown, the water treatment biological tank blower control cabinet 100 also includes a document bag 196, which is located on the side of the cabinet 110 and is used to store documents.

[0052] Specifically, such as Figure 3 As shown, the blower control cabinet 100 for the water treatment biological tank also includes a document bag 196, which is located on the side of the cabinet 110 and is used to store documents for easy access by operators.

[0053] In specific applications, the aeration control cabinet 100 for the biological treatment tank also includes a front door base plate 198, a rear door base plate 200, which are located at the bottom of the cabinet body 110, as well as a rear door handle 212, a control circuit breaker 202, a power circuit breaker 204, a lighting circuit breaker 206, a socket circuit breaker 208, and a spare circuit breaker 210, etc., which are used to achieve precise and energy-saving aeration through the coordinated action of zoned oxygen control and anti-interference structure.

[0054] In the description of this application, the term "multiple" refers to two or more. Unless otherwise expressly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not 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 application. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0055] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0056] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A blower control cabinet for a biological water treatment tank, characterized in that, Includes a cabinet, the interior of which is provided with: The dissolved oxygen transmitter signal interface is used to connect an external dissolved oxygen sensor to input the dissolved oxygen concentration signal of the biological tank. A programmable logic controller (PLC), wherein the input terminals of the PLC are connected to the signal interface of the dissolved oxygen transmitter; Multiple regulating valve control modules are provided, and the multiple regulating valve control modules are arranged in parallel. The input terminal of each regulating valve control module is connected to the output terminal of the programmable logic controller. A communication expansion module, wherein the input end of the communication expansion module is connected to the communication port of the programmable logic controller, and the output end is connected to an external blower control system; An industrial switch is connected to the Ethernet port of the programmable logic controller.

2. The blower control cabinet for the biological water treatment tank according to claim 1, characterized in that, The water treatment biological tank blower control cabinet also includes a main circuit breaker, and the multiple regulating valve control modules include multiple regulating valve circuit breakers. The input terminals of the multiple regulating valve circuit breakers are connected in parallel to the main circuit breaker, and the output terminals of the multiple regulating valve circuit breakers are connected to the power interface of the actuator of the corresponding regulating valve.

3. The blower control cabinet for the biological water treatment tank according to claim 1, characterized in that, The blower control cabinet for the biological water treatment tank also includes: The equipment grounding busbar is connected to the grounding terminal of the cabinet; A signal grounding busbar is connected to the programmable logic controller, the dissolved oxygen transmitter signal interface, and the shielded grounding terminal of the communication expansion module; The signal grounding busbar and the equipment grounding busbar are connected at a single point via a wire.

4. The blower control cabinet for the biological water treatment tank according to claim 2, characterized in that, The blower control cabinet for the biological water treatment tank also includes: An uninterruptible power supply (UPS) host, wherein the input terminal of the UPS host is connected to the main circuit breaker via an uninterruptible power supply circuit breaker, and the output terminal of the UPS host is connected to the power terminals of the programmable logic controller, the industrial switch, and the dissolved oxygen transmitter signal interface. The battery pack, connected to the uninterruptible power supply host, is used to provide backup power for the programmable logic controller and the industrial switch.

5. The blower control cabinet for the biological water treatment tank according to claim 1, characterized in that, The blower control cabinet for the biological water treatment tank also includes: The front door is located on the front side of the cabinet. A front cabinet door handle is provided on the front door for opening the front door; A touch display screen is located at the front door, and the industrial switch is connected to the programmable logic controller and the touch display screen.

6. The blower control cabinet for the biological water treatment tank according to claim 4, characterized in that, The blower control cabinet for the biological water treatment tank also includes: The system power indicator light is located on the front door; An uninterruptible power supply indicator light is located on the front door, to one side of the system power supply indicator light; A system fault indicator light is located on the front door, below the system power supply indicator light; The system emergency stop indicator light is located on the front door, next to the system malfunction indicator light.

7. The blower control cabinet for the biological water treatment tank according to claim 1, characterized in that, The blower control cabinet for the biological water treatment tank also includes: The rear door is located on the rear side of the cabinet. A cable management rack is installed inside the cabinet, located on the inside of the rear door; The neutral busbar is located inside the cabinet, above the cable management rack.

8. The blower control cabinet for the biological water treatment tank according to claim 4, characterized in that, The blower control cabinet for the biological water treatment tank also includes: A cooling fan is installed at the top of the cabinet; A fan vent is located at the top of the cabinet for ventilation. A louver is installed on the front door for air intake, and the louver and the fan hole form a heat dissipation channel for the cabinet.

9. The blower control cabinet for the biological water treatment tank according to claim 1, characterized in that, The blower control cabinet for the biological water treatment tank also includes: A knockout hole is provided at the bottom of the cabinet for cables to enter and exit the cabinet. A rubber ring is fitted onto the knockout hole.

10. The aeration control cabinet for the biological treatment tank according to any one of claims 1 to 9, characterized in that, The blower control cabinet for the biological water treatment tank also includes: Document bags are located on the side of the cabinet and are used to store documents.

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