Equipment perfectness ratio statistical device of sewage treatment plant and sewage treatment system

Abstract

The invention provides a sewage treatment plant equipment perfectness rate statistical device and a sewage treatment system, and relates to the technical field of sewage treatment. The device comprises a signal receiving module which is used for receiving a working signal of a control cabinet and transmitting the working signal to a duration statistics module; the duration statistics module is used for determining and storing the state duration of the corresponding equipment based on the working signal; the data processing module is used for reading the state duration in the duration statistics module from the duration statistics module at preset intervals, determining the equipment perfectness rate data of the sewage treatment plant based on the state duration, and sending the equipment perfectness rate data of the sewage treatment plant to the display module; the display module is used for displaying the equipment perfectness rate data of the sewage treatment plant; the working time and the fault time of the sewage treatment plant equipment are automatically collected, and the equipment perfectness ratio is automatically calculated according to the preset rule, so that the calculation efficiency and accuracy are improved, real-time data updating is realized, and a manager can quickly and accurately make a decision.

Description

TECHNICAL FIELD

[0001] The present application relates to the sewage treatment technical field, especially to a sewage treatment plant equipment intact rate statistical device and a sewage treatment system. BACKGROUND

[0002] In the daily operation of a sewage treatment plant, the intact rate of equipment is an important indicator to measure the running state of equipment and the management level. Accurate and timely grasp of the intact rate of equipment is of great significance to ensure the stable operation of the sewage treatment plant and reasonably arrange the equipment maintenance plan.

[0003] At present, the calculation of the intact rate of equipment in the sewage treatment plant mostly relies on manual recording of the fault duration and working time of equipment, and then manual calculation. This method not only consumes a lot of manpower and time, but also is prone to errors due to human factors, resulting in inaccurate calculation results. At the same time, manual recording and calculation cannot realize real-time data updating and cannot timely reflect the latest intact state of equipment, which is not conducive to the rapid and accurate decision-making of management personnel. SUMMARY

[0004] The purpose of the present application is to provide a sewage treatment plant equipment intact rate statistical device and a sewage treatment system, which automatically collects the working time and fault time of the equipment in the sewage treatment plant, automatically calculates the intact rate of equipment according to the preset rules, improves the calculation efficiency and accuracy, realizes real-time data updating, and helps management personnel to make rapid and accurate decisions.

[0005] In a first aspect, the present application provides a sewage treatment plant equipment intact rate statistical device, comprising: a signal receiving module, a time length statistical module, a data processing module and a display module connected in sequence; the signal receiving module is connected with the control cabinet of the equipment in the sewage treatment plant; The signal receiving module is used for receiving the working signal of the control cabinet, and transmitting the working signal from an analog signal to a digital signal to the time length statistical module; The time length statistical module is used for determining and storing the state time length of the corresponding equipment based on the working signal; wherein the state time length includes the working time length and the fault time length; The data processing module is used for reading the state time length in the time length statistical module from the time length statistical module at intervals of a preset time, determining the intact rate data of the equipment in the sewage treatment plant based on the state time length, and sending the intact rate data of the equipment in the sewage treatment plant to the display module; The display module is used for displaying the intact rate data of the equipment in the sewage treatment plant.

[0006] In some preferred embodiments of the present application, the signal receiving module comprises a signal isolator, a signal converter and a data buffer; A signal isolator is used to isolate the electrical interference between the sewage treatment plant equipment integrity rate statistical device and the control cabinet by using photoelectric isolation technology. A signal converter is used to convert the analog signal output by the control cabinet into a digital signal. A data buffer is used to store the working signal converted into a digital signal.

[0007] In some preferred embodiments of the present application, the time length statistical module includes a working time recording unit and a fault time length statistical unit; and the working signal includes a running signal and a fault signal. The working time recording unit is used to determine the working time length based on the duration of the running signal. The fault time length statistical unit is used to determine the fault time length based on the fault signal and the time length between the fault signal and the first running signal after the fault signal.

[0008] In some preferred embodiments of the present application, the fault time length statistical unit includes a microprocessor, a signal trigger circuit, a timer, and a data storage. The microprocessor is used to generate a timer control signal based on the running signal and send the timer control signal to the signal trigger circuit. The signal trigger circuit is used to send a start signal or a stop signal to the timer based on the timer control signal. The timer is used to record the fault time length based on the start signal or the stop signal and send the fault time length to the microprocessor. The data storage is used to store the fault time length.

[0009] In some preferred embodiments of the present application, the working time recording unit includes a timer, a counting chip, and a data storage. The timer is used to send a counting pulse to the counting chip every time the duration of the running signal reaches a preset reference time length and restart the timer at the same time. The counting chip is used to count the number of counting pulses. The microprocessor is also used to determine the working time length based on the number of counting pulses, the reference time length, and the time length data of the timer when the running signal stops.

[0010] In some preferred embodiments of the present application, the data processing module includes a single-chip microcomputer and a data interface circuit. The data interface circuit is used to read the working time length and the fault time length corresponding to the target device from the time length statistical module at intervals of a preset time. The single-chip microcomputer is used to determine the equipment integrity rate of the target device based on the working time length and the fault time length corresponding to the target device.

[0011] In some preferable embodiments of the present application, the sewage treatment plant comprises a plurality of sewage treatment sections. The single-chip microcomputer is further configured to determine the equipment intact rate of the target sewage treatment section based on the working time length and the fault time length of the sewage treatment equipment in the target sewage treatment section.

[0012] In some preferable embodiments of the present application, the single-chip microcomputer is further configured to determine the equipment intact rate of the sewage treatment plant based on the working time length and the fault time length of all the sewage treatment equipment in the sewage treatment plant.

[0013] In some preferable embodiments of the present application, the display module is a liquid crystal display screen.

[0014] In a second aspect, the present application provides a sewage treatment system, comprising: a plurality of sewage treatment equipment, a control cabinet, and the sewage treatment plant equipment intact rate statistical device provided in the first aspect.

[0015] The present application has the following beneficial effects: The present application provides a sewage treatment plant equipment intact rate statistical device and a sewage treatment system. The device comprises: a signal receiving module, a time length statistical module, a data processing module, and a display module connected in sequence; the signal receiving module is connected with the control cabinet of the equipment of the sewage treatment plant; the signal receiving module is configured to receive the working signal of the control cabinet and transmit the working signal converted from an analog signal to a digital signal to the time length statistical module; the time length statistical module is configured to determine and store the state time length of the corresponding equipment based on the working signal; wherein the state time length comprises a working time length and a fault time length; the data processing module is configured to read the state time length in the time length statistical module from the time length statistical module at intervals of a preset time, determine the sewage treatment plant equipment intact rate data based on the state time length, and send the sewage treatment plant equipment intact rate data to the display module; the display module is configured to display the sewage treatment plant equipment intact rate data. The working time and the fault time of the equipment of the sewage treatment plant are automatically collected, and the equipment intact rate is automatically calculated according to a preset rule, thereby improving the calculation efficiency and accuracy, realizing real-time data updating, and helping the management personnel to make decisions quickly and accurately. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

[0017] Figure 1 A structural schematic diagram of a sewage treatment plant equipment intact rate statistical device provided by an embodiment of the present application; Figure 2 Another sewage treatment plant equipment intact rate statistical device structure schematic diagram provided by the embodiment of the application.

[0018] Icon: 1-control cabinet; 2-sewage treatment plant equipment intact rate statistical device; 21-signal receiving module; 211-signal isolator; 212-signal converter; 213-data buffer; 22-time length statistical module; 221-signal trigger circuit; 222-microprocessor; 223-timer; 224-data storage; 225-counting chip; 23-data processing module; 231-single-chip microcomputer; 232-operational amplifier; 233-data interface circuit; 24-display module; 241-liquid crystal display screen. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the application clearer, the technical scheme in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are part of the embodiments of the application, rather than all the embodiments. The components of the embodiments of the application described and shown in the drawings can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the application without creative labor are within the scope of protection of the application.

[0021] It should be noted that: similar numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0022] In the description of the application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the application is usually placed, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0023] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0024] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] Most of the prior art relies on manual recording of the fault duration and working time of the equipment, and then manually calculating. This way not only consumes a lot of manpower and time, but also is prone to errors due to human factors, resulting in inaccurate calculation results. At the same time, manual recording and calculation cannot realize real-time data updating, and cannot timely reflect the latest perfect state of the equipment, which is not conducive to the management personnel to make quick and accurate decisions.

[0026] The scheme provided by the present application realizes the automatic calculation of the perfect rate of the equipment in the sewage plant by the automatic control method combined with the hardware such as the control cabinet and the software such as the calculation program, and aims to solve the problems in the prior art that the calculation of the perfect rate of the equipment in the sewage treatment plant relies on manual work, has low efficiency, poor accuracy, and cannot realize real-time updating.

[0027] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the case of no conflict, the following examples and features in the examples can be combined with each other.

[0028] Example 1 The embodiment of the present application provides a perfect rate of equipment in a sewage treatment plant statistical device 2, as shown in Figure 1 The structure schematic diagram of the perfect rate of equipment in a sewage treatment plant statistical device provided by the embodiment of the present application is shown in the figure, and the device comprises: signal receiving module 21, time length statistical module 22, data processing module 23 and display module 24 which are electrically connected in sequence; the signal receiving module 21 is connected with the control cabinet 1 of the equipment in the sewage treatment plant.

[0029] Specifically, the signal receiving module 21, the time length statistical module 22 and the data processing module 23 can be hardware devices or virtual modules realized by software, the display module 24 can be a display screen specially equipped for the device or a display of an external hardware device receiving and displaying data transmitted by the data processing module 23. The signal receiving module 21 and the electric control cabinet can be connected through a communication line or a wireless network.

[0030] The signal receiving module 21 is configured to receive a working signal of the control cabinet 1 and transmit the working signal converted from an analog signal to a digital signal to the time length statistical module 22.

[0031] Specifically, the signal receiving module 21 collects, in real time, switch quantity signals representing equipment operation (such as "running / stop") or failure (such as "normal / alarm") output by relays, contactors or PLCs in the control cabinet 1 or analog quantity signals measuring equipment operation parameters (such as current and voltage) through an industrial bus (such as Profibus or Modbus) or I / O terminals. For the analog quantity signals, an A / D converter in the module converts them into digital signals of high / low levels according to a preset sampling frequency and threshold (for example, current > 2A is determined as running), performs photoelectric isolation to resist interference, and finally uploads the normalized digital signals.

[0032] Further, in some preferable embodiments of the present application, the signal receiving module 21 comprises a signal isolator 211, a signal converter 212 and a data buffer 213. The signal isolator 211 is configured to isolate the electric interference between the sewage treatment plant equipment intact rate statistical device 2 and the control cabinet 1 by photoelectric isolation technology. The signal converter 212 is configured to convert the analog signals output by the control cabinet 1 into digital signals. The data buffer 213 is configured to store the working signals converted into digital signals.

[0033] Specifically, referring to Figure 2 The signal receiving module 21 of the sewage treatment plant equipment intact rate statistical device provided by the embodiment of the present application is composed of a signal isolator 211, a signal converter 212 and a data buffer. The signal isolator 211 adopts photoelectric isolation technology, which can effectively isolate the electric interference between the control cabinet 1 and the device, ensuring the stability of signal transmission. The signal converter 212 can convert the analog signals (4-20mA current signals or 0-10V voltage signals) output by the control cabinet 1 into digital signals, with a conversion accuracy of 16 bits, ensuring the accuracy of signal conversion. The data buffer is configured to temporarily store the converted digital signals, preventing data loss.

[0034] The flow of the signal receiving module 21 includes: first, receiving the equipment running signal and the fault signal transmitted by the control cabinet 1 through the signal isolator 211, sending the analog signal to the signal converter 212 after isolation processing, converting the analog signal into a digital signal, and then temporarily storing the digital signal in the data buffer, and then transmitting the digital signal to the fault duration statistical unit and the working time recording unit respectively.

[0035] The technical parameters of the signal receiving module 21 are: the working voltage is DC 24V, the working temperature range is -20℃-70℃, the signal receiving response time is ≤10ms, and the signals of at most 32 devices can be received at the same time.

[0036] The duration statistical module 22 is used for determining and storing the state duration of the corresponding device based on the working signal; wherein the state duration includes the working duration and the fault duration.

[0037] Specifically, the duration statistical module 22 is internally provided with a real-time clock and a non-volatile memory. It continuously monitors the digital signal sent by the signal receiving module 21, determines the current state (running, shutdown, fault) of the device according to the signal level (such as high level for working and low level for shutdown) or specific code (such as fault code), and records the time stamp when the state switches. The difference between the current time and the start time of the last state is calculated, and the duration of the corresponding state (working or fault) of the device is accumulated and stored in the duration counter, so that the data is not lost after power failure.

[0038] Further, in some preferred embodiments of the application, the duration statistical module 22 includes: a working time recording unit and a fault duration statistical unit; the working signal includes: a running signal and a fault signal; the working time recording unit is used for determining the working duration based on the duration of the running signal; and the fault duration statistical unit is used for determining the fault duration based on the duration between the fault signal and the first running signal after the fault signal.

[0039] Specifically, the working time recording unit continuously monitors the "running signal" (usually high level), and when it is valid, the internal timer 223 starts to accumulate, and when the signal disappears, the timing is paused, so as to accurately count the pure time of the actual operation of the device. At the same time, the fault duration statistical unit independently monitors the "fault signal" (usually an independent pulse or level signal), and as soon as the fault signal is captured, the fault timing is started; the timer 223 will only stop when the first "running signal" (representing fault elimination and restart) is received, and the accumulated fault time of this time is stored in the memory. This double-channel parallel processing mechanism effectively avoids the statistical error caused by signal jitter or intermediate state, and ensures the accuracy and reliability of the working duration and fault duration data.

[0040] Further, in some preferred embodiments of the application, the fault duration statistical unit comprises a microprocessor 222, a signal trigger circuit 221, a timer 223 and a data storage 224; the microprocessor 222 is configured to generate a timer 223 control signal based on the operation signal and send the timer 223 control signal to the signal trigger circuit 221; the signal trigger circuit 221 is configured to send a start signal or a stop signal to the timer 223 based on the timer 223 control signal; the timer 223 is configured to record the fault duration based on the start signal or the stop signal and send the fault duration to the microprocessor 222; and the data storage 224 is configured to store the fault duration.

[0041] Specifically, continuing to refer to Figure 2 , the fault duration statistical unit mainly comprises a microprocessor 222, a timer 223, a data storage 224 and a signal trigger circuit 221. The microprocessor 222 serves as a core control unit, is responsible for receiving the signal from the signal receiving module 21 and controlling the operation of the timer 223; the timer 223 has a real-time clock function, has a timing accuracy of ±2ppm and can accurately record time; the data storage 224 is of an EEPROM type, has a capacity of 256Kbit, can save the fault duration data after power failure and prevent data loss; and the signal trigger circuit 221 is composed of a triode and a relay, is configured to receive the control signal from the microprocessor 222 and trigger the start and stop of the timer 223.

[0042] The working process of the fault duration statistical unit is as follows: when receiving the fault signal transmitted by the signal receiving module 21, the microprocessor 222 sends a start signal to the signal trigger circuit 221, the relay is closed, and the timer 223 starts timing; when receiving the first operation signal after the fault signal, the microprocessor 222 sends a stop signal, the relay is opened, the timer 223 stops timing, the microprocessor 222 reads the duration recorded by the timer 223, stores the fault duration in the data storage 224 and simultaneously accumulates the total fault duration.

[0043] The technical parameters of the fault duration statistical unit are as follows: the working voltage is DC 3.3V, the timing range is 0~9999 hours 59 minutes 59 seconds, the timing accuracy is ±0.1 seconds / day, the data storage life is 100,000 times of erasing and writing, and the power failure data saving time is ≥10 years.

[0044] Further, in some preferred embodiments of the present application, the working time recording unit comprises a timer 223, a counting chip 225 and a data storage 224; the timer 223 is configured to send a counting pulse to the counting chip 225 when the duration of the running signal reaches a preset reference duration, and restart the timing at the same time; the counting chip 225 is configured to count the number of counting pulses; and the microprocessor 222 is further configured to determine the working time based on the number of counting pulses, the reference duration and the duration data of the timer 223 when the running signal stops.

[0045] Specifically, continuing to refer to Figure 2 , the working time recording unit comprises a timer 223, a counting chip 225 and a second data storage unit. The timer 223 provides a stable clock reference; the counting chip 225 is configured to count the duration of the running signal; and the second data storage unit is of the Flash type, has a capacity of 128Mbit and can store long-term working time data.

[0046] The working process of the working time recording unit is as follows: when the signal receiving module 21 transmits the running signal, the timer 223 starts timing, and the counting chip 225 starts counting at the same time, converting the duration of the running signal into counting pulses; when the device stops running due to planned maintenance or other non-fault reasons, and the signal receiving module 21 stops transmitting the running signal, the timer 223 stops timing, and the counting chip 225 stops counting, and the module converts the counting result into the working time (hours, minutes and seconds) and stores it into the second data storage unit, and accumulatively calculates the total working time.

[0047] The technical parameters of the working time recording unit are as follows: the working voltage is DC 5V, the timing accuracy is ±5ppm, the working time recording range is 0-99999 hours, and the data storage can save the latest 1000 working time records.

[0048] The data processing module 23 is configured to read the state duration in the duration statistical module 22 at intervals of a preset time, determine the perfect rate data of the equipment in the sewage treatment plant based on the state duration, and send the perfect rate data of the equipment in the sewage treatment plant to the display module 24.

[0049] Specifically, the data processing module 23 as a microprocessor 222 or host computer software will read all the devices in the last statistical cycle from the time length statistics module 22 through the communication interface (such as RS-485, Ethernet) The cumulative working time and failure time of the device is read. Then, it calculates according to the preset formula: device integrity rate = (total time in the statistical period - total failure time) / total time in the statistical period * 100% or device integrity rate = (total working time) / (total working time + total failure time) * 100% Generate a data packet containing the overall integrity rate, single device integrity rate and time range, and send it to the display module 24 in a protocol format recognizable by the display module 24.

[0050] Further, in some preferred embodiments of the present application, the data processing module 23 comprises: a single-chip microcomputer 231 and a data interface circuit 233; the data interface circuit 233 is used to read the working time and failure time corresponding to the target device from the time length statistics module 22 at intervals of a preset time; the single-chip microcomputer 231 is used to determine the device integrity rate of the target device based on the working time and failure time corresponding to the target device.

[0051] Specifically, continuing to refer to Figure 2 , the data processing module 23 is composed of a single-chip microcomputer 231, an operational amplifier 232 and a data interface circuit 233. The single-chip microcomputer 231 as the data processing core has 8-bit processing capability and fast operation speed, which can quickly complete data calculation; the operational amplifier 232 is used to amplify the input analog data (if necessary); the data interface circuit 233 adopts RS485 interface, which is used for data communication with the failure time statistics unit and the working time recording unit.

[0052] The working process of the data processing module: read the total failure time from the failure time statistics unit and the total working time from the working time recording unit through the RS485 interface regularly (which can be set to every 1 minute, every 5 minutes or every hour), then calculate according to the formula "device integrity rate = (device total working time - device total failure time) / device total working time * 100%", and the calculation result is rounded to two decimal places.

[0053] The technical parameters of the data processing module: working voltage DC5V, calculation response time ≤100ms, data communication rate 9600bps, calculation accuracy ±0.01%.

[0054] Further, in some preferred embodiments of the present application, the sewage treatment plant comprises a plurality of sewage treatment sections; the single-chip microcomputer 231 is also used to determine the device integrity rate corresponding to the target sewage treatment section based on the working time and failure time of the sewage treatment device in the target sewage treatment section.

[0055] Specifically, sewage treatment generally includes multiple stages, for example: a blocking section: the main equipment is a grating machine and a conveyor, the purpose is to intercept sewage floating objects or larger solid waste, and then convey them to a sludge treatment room; a regulating section: the main equipment is a sewage lifting pump (pumping sewage from the blocking section to the regulating tank, or pumping sewage from the regulating tank to the anoxic tank), a regulating tank agitator (allowing sewage to be fully mixed and uniform), and a regulating tank sludge pump (discharging sludge to the sludge treatment room); a biochemical treatment section: the main equipment is an agitator (allowing sewage and chemicals to be fully mixed), a nitrification reflux pump (pumping sewage from the aerobic tank to the large anaerobic tank), and a sludge pump (discharging sludge), a dosing room in the biochemical treatment stage is used for adding chemicals, and the main equipment of the dosing room is various dosing equipment (adding chemicals to the biochemical treatment section, such as adding carbon source, anion, cation, disinfectant, and iron salt), a chemical metering device (metering chemicals to control the amount of chemicals added), and an agitator (forming a uniform solution of chemicals); a concentration tank concentration section: receiving sludge from the previous process sections, dehydrating and concentrating the sludge, and the main equipment is a concentration tank agitator; and finally, a sludge dewatering section: piling up the dewatered sludge, and the main equipment is a sludge screw pump.

[0056] For each stage, if any one of the devices fails, the entire stage is in a stalled state. The duration of each device failure and the time of failure are counted, overlapping failure times are combined, and then the formula "target sewage treatment section device integrity rate = (target sewage treatment section total time - target sewage treatment section total failure duration) / target sewage treatment section total time x 100%" is used for calculation, and the calculation result is rounded to two decimal places.

[0057] Further, in some preferred embodiments of the present application, the single-chip microcomputer 231 is further used to determine the device integrity rate of the sewage treatment plant based on the working duration and failure duration of all sewage treatment devices in the sewage treatment plant.

[0058] Specifically, based on the same idea, the integrity rate of the devices of the entire sewage treatment plant can also be counted.

[0059] The display module 24 is used to display the sewage treatment plant device integrity rate data.

[0060] Specifically, the display module 24 is usually a touch screen or a configuration software interface. It receives and analyzes the data packet sent by the data processing module 23, and presents it to the user in an intuitive form, for example: displaying the real-time overall integrity rate of the entire plant as a large percentage on the main interface; showing the historical changes of the integrity rate through a trend chart; listing the working duration, failure duration, and individual integrity rate of each single device in the form of a list; and highlighting key information by setting color warnings (such as displaying yellow warning when the integrity rate is less than 95%).

[0061] Further, in some preferred embodiments of the present application, the display module 24 is a liquid crystal display screen 241.

[0062] Specifically, the display module 24 generally uses a liquid crystal display screen 241 with a resolution of 1024x600, equipped with a touch screen and a backlight adjustment circuit. The display screen has the characteristics of high brightness and high contrast, and the display is clear; the touch screen supports single-point touch and can be used to operate the display content switching; the backlight adjustment circuit can automatically adjust the screen brightness according to the intensity of the ambient light, saving energy consumption.

[0063] The working process of the display module 24: receiving the device integrity rate data transmitted by the data processing module 23 through the SPI interface, converting the data into a graphical interface display, which can simultaneously display the real-time integrity rate of a single device, the historical integrity rate curve (near 24 hours, near 7 days, near 30 days), and device number, device name and other information. The operator can switch the display content of different devices through the touch screen to view detailed data.

[0064] The technical parameters of the display module 24: working voltage DC5V, display brightness 300cd / m 2 , contrast ratio 1000:1, response time ≤25ms, touch screen positioning accuracy ±0.5mm.

[0065] For example, in actual operation, when a water pump device of the sewage treatment plant is running normally, the control cabinet 1 sends a running signal to the signal receiving module 21, and the working time recording unit starts timing; when the water pump fails, the automatic control cabinet sends a fault signal to the signal receiving module 21, and the fault duration statistical unit triggers the timer 223 to start timing, and the working time recording unit continues to time (because the device is in a fault state under working condition, it still belongs to the working time category); when the fault is eliminated and the water pump resumes normal operation, the automatic control cabinet sends a running signal, the fault duration statistical unit triggers the timer 223 to stop timing, and records the fault duration. The data processing module 23 receives the total fault duration and the total working time regularly (such as every hour), calculates the integrity rate of the water pump, and displays it through the display module 24. The manager can know the integrity rate of the water pump at any time through the display screen, and arrange maintenance work in time.

[0066] The sewage treatment plant device integrity rate statistical device 2 provided in the embodiment of the present application has the following beneficial effects: improving efficiency: without manual recording and calculating the fault duration, working time and integrity rate of the device, realizing fully automated processing, greatly saving manpower and time cost, and improving work efficiency.

[0067] Guarantee accuracy: avoid the omission and error that can appear in manual recording and calculation process, through the accurate cooperation of each module, ensure the accuracy of equipment failure duration, working time statistics and perfect rate calculation.

[0068] Strong real-time: can receive the running signal and fault signal of the equipment in real time, real-time statistics related data and calculate the perfect rate, through the display module 24 real-time display, so that the management personnel can timely grasp the latest perfect state of the equipment, provide timely and reliable basis for equipment maintenance and operation decision.

[0069] Simple structure: the connection relationship between each module is clear, easy to realize and maintain, and easy to popularize and apply in sewage treatment plant.

[0070] The present application provides a kind of sewage treatment plant equipment perfect rate statistical device 2, comprising: signal receiving module 21, duration statistical module 22, data processing module 23 and display module 24 connected in sequence;Signal receiving module 21 is connected with the control cabinet 1 of the equipment of sewage treatment plant;Signal receiving module 21 is used to receive the working signal of control cabinet 1, and the working signal is converted from analog signal to digital signal and then transmitted to duration statistical module 22;Duration statistical module 22 is used to determine and store the state duration of corresponding equipment based on working signal;Wherein, state duration includes working duration and failure duration;Data processing module 23 is used to read state duration in duration statistical module 22 from duration statistical module 22 at interval preset time, determine sewage treatment plant equipment perfect rate data based on state duration, and send sewage treatment plant equipment perfect rate data to display module 24;Display module 24 is used to display sewage treatment plant equipment perfect rate data;Automatic acquisition of working time and failure time of sewage treatment plant equipment, automatically calculate equipment perfect rate according to preset rule, improve calculation efficiency and accuracy, realize real-time data update, help management personnel to make decision quickly and accurately.

[0071] Example two On the basis of the above embodiment, the present application provides a sewage treatment system, comprising: a plurality of sewage treatment equipment, a control cabinet 1 and the sewage treatment plant equipment perfect rate statistical device 2 provided in the above embodiment.

[0072] Specifically, the sewage treatment equipment includes: a grating machine in a trash screen section, a conveyor, a sewage lifting pump in an adjustment section, an adjustment tank agitator, an adjustment tank sludge pump, an agitator in a biochemical treatment section, a nitrification reflux pump, a sludge pump, a dosing equipment in a dosing section, a medicine metering device, an agitator, a thickening tank agitator in a thickening tank, and a sludge screw pump in a sludge dewatering section, etc.;One device is connected to one control cabinet 1 alone or several devices together, the control cabinet 1 controls the equipment to work and collects the working signal, and sends it to the sewage treatment plant equipment perfect rate statistical device 2.

[0073] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the sewage treatment system described above can refer to the corresponding process in the foregoing embodiment of the sewage treatment plant equipment intact rate statistical device 2, which will not be repeated here.

[0074] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A sewage treatment plant equipment soundness rate statistics device characterized by comprising: The utility model relates to a sewage treatment plant equipment intact rate statistical device, including: Signal receiving module, time length statistics module, data processing module and display module are connected in turn; The signal receiving module is connected with the control cabinet of the equipment of sewage treatment plant; The signal receiving module is used for receiving the working signal of the control cabinet, and the working signal is transmitted to the time length statistics module after converting from analog signal to digital signal; The time length statistics module is used for determining and storing the state time length of the corresponding equipment based on the working signal; Wherein, the state time length includes working time length and fault time length; The data processing module is used for reading the state time length in the time length statistics module from the time length statistics module at interval of preset time, determining the sewage treatment plant equipment intact rate data based on the state time length, and sending the sewage treatment plant equipment intact rate data to the display module; The display module is used for displaying the sewage treatment plant equipment intact rate data.

2. The apparatus for counting the operational rate of sewage treatment plants according to claim 1, characterized by, The signal receiving module includes signal isolator, signal converter and data buffer; The signal isolator is used for isolating the electrical interference of the sewage treatment plant equipment intact rate statistical device and the control cabinet with photoelectric isolation technology; The signal converter is used for converting the analog signal output by the control cabinet into digital signal; The data buffer is used for storing the working signal converted into digital signal.

3. The apparatus for counting the operational rate of sewage treatment plants according to claim 1, characterized by, The time length statistics module includes working time recording unit and fault time length statistics unit; The working signal includes running signal and fault signal; The working time recording unit is used for determining the working time length based on the time duration of the running signal; The fault time length statistics unit is used for determining the fault time length based on the time duration between the fault signal and the first running signal after the fault signal.

4. The apparatus according to claim 3, wherein The fault time length statistics unit includes microprocessor, signal trigger circuit, timer and data storage; The microprocessor is used for generating timer control signal based on the running signal, and sending the timer control signal to the signal trigger circuit; The signal trigger circuit is used for sending start signal or stop signal to the timer based on the timer control signal; The timer is used for recording the fault time length based on the start signal or the stop signal, and sending the fault time length to the microprocessor; The data storage is used for storing the fault time length.

5. The apparatus according to claim 4, wherein The working time recording unit includes the timer, counting chip and data storage; The timer is used for sending a counting pulse to the counting chip when the time duration of the running signal reaches a preset reference time length, and restarting timing at the same time of sending the counting pulse; The counting chip is used for counting the number of counting pulses; The microprocessor is also used for determining the working time length based on the number of counting pulses, the reference time length and the time duration data of the timer when the running signal stops.

6. The apparatus for counting the operational rate of sewage treatment plants according to claim 1, wherein The data processing module includes single-chip microcomputer and data interface circuit; The data interface circuit is configured to read the working time length and the failure time length corresponding to the target device from the time length statistics module at intervals of a preset time; The single-chip microcomputer is configured to determine the device intact rate of the target device based on the working time length and the failure time length corresponding to the target device.

7. The apparatus for counting the operational rate of sewage treatment plants according to claim 6, characterized by The sewage treatment plant comprises a plurality of sewage treatment sections. The single-chip microcomputer is further configured to determine the device intact rate corresponding to the target sewage treatment section based on the working time length and the failure time length of the sewage treatment device in the target sewage treatment section.

8. The apparatus for counting the operational rate of sewage treatment plants according to claim 6, wherein The single-chip microcomputer is further configured to determine the device intact rate of the sewage treatment plant based on the working time length and the failure time length of all the sewage treatment devices in the sewage treatment plant.

9. The apparatus for counting the operational rate of sewage treatment plants according to claim 1, wherein The display module is a liquid crystal display screen.

10. A sewage treatment system characterised in that, The sewage treatment plant device intact rate statistics device comprises: a plurality of sewage treatment devices, a control cabinet, and the sewage treatment plant device intact rate statistics device according to any one of claims 1 to 9.

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