CN213623766U - Control system of rural domestic sewage treatment device - Google Patents
Control system of rural domestic sewage treatment device Download PDFInfo
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- CN213623766U CN213623766U CN202022638973.1U CN202022638973U CN213623766U CN 213623766 U CN213623766 U CN 213623766U CN 202022638973 U CN202022638973 U CN 202022638973U CN 213623766 U CN213623766 U CN 213623766U
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Abstract
The utility model discloses a handle rural domestic sewage device's control system, the system includes water inlet portion, sewage treatment room, goes out water part and automatically controlled subassembly. The water inlet part comprises a water inlet tank, the sewage treatment room comprises an oxygen elimination tank, an oxygen-poor tank, an aerobic tank and a membrane biological reaction tank, the oxygen elimination tank, the oxygen-poor tank, the aerobic tank and the membrane biological reaction tank are sequentially communicated, and the electric control assembly comprises a central processing unit, an upper computer and a remote server. The upper computer and the remote server are connected with the central processing unit, so that real-time reading and on-site and remote multiple control of data of the rural domestic sewage treatment device are realized. The utility model discloses can require to switch the product water standard according to the user, improve work efficiency, simplify work flow.
Description
Technical Field
The utility model relates to an automatic control field particularly relates to a handle rural domestic sewage device's control system.
Background
Along with the acceleration of the urbanization and industrialization process, the discharge amount of waste water is increased year by year, so that the natural water body is continuously deteriorated, and the water resource pollution situation is still very severe.
The existing sewage treatment device has single water purification type, and only one standard water outlet can be realized on the same equipment. Meanwhile, the existing sewage treatment device has poor controllability, can only artificially control the start and stop of each device, and cannot read the data of the devices in real time and perform remote operation.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a handle rural domestic sewage device's control system, concrete scheme is as follows:
the embodiment disclosed in the application provides a control system of a device for treating rural domestic sewage, which comprises a water inlet part, a sewage treatment room, a water outlet part and an electric control assembly;
the water inlet part comprises a water inlet pool;
the sewage treatment room comprises an oxygen elimination pool, an oxygen-poor pool, an aerobic pool and a membrane biological reaction pool, wherein the water inlet pool is communicated with the oxygen elimination pool through a water inlet pipe, the oxygen elimination pool, the oxygen-poor pool, the aerobic pool and the membrane biological reaction pool are sequentially communicated, an overflow port is formed in the wall of the membrane biological reaction pool, a membrane biological reactor is arranged in the membrane biological reaction pool, and the membrane biological reactor is provided with a membrane biological reactor air inlet and a membrane biological reactor water outlet;
the water outlet part comprises a first type water outlet pipe, a second type water outlet pipe, a water storage tank and a motor, the motor is arranged at the water outlet of the membrane bioreactor, the water outlet of the membrane bioreactor is communicated with the water storage tank through the first type water outlet pipe, and the membrane bioreactor is communicated with the water storage tank through the overflow port and the second type water outlet pipe;
the electric control assembly comprises a central processing unit, an upper computer and a remote server, the membrane bioreactor and the upper computer are respectively connected with the central processing unit, and the central processing unit is in communication connection with the remote server.
According to a specific embodiment of the present disclosure, the system further comprises an online dissolved oxygen detection device, a biofilm active treatment device, an aeration device, a gas stripping reflux device, and an ultraviolet disinfection device;
the biological membrane active treatment device is arranged in the oxygen elimination tank, the aeration device and the online dissolved oxygen detection device are arranged in the aerobic tank, the air stripping backflow is respectively communicated with the oxygen elimination tank and the membrane biological reaction tank, and the ultraviolet disinfection device is arranged between the membrane biological reaction tank and the water storage tank.
According to a specific embodiment of the present disclosure, the gas stripping reflux device, the online dissolved oxygen detection device, the biofilm active treatment device, the aeration device, and the ultraviolet disinfection device are all connected to an input/output port of a central processing unit.
According to a specific embodiment of the present disclosure, the system further comprises a fan; the air outlet of the fan is respectively communicated to the oxygen elimination tank and the perforated pipe at the bottom of the oxygen-deficient tank, the aeration device at the bottom of the aerobic tank, the aerobic tank and the air inlet of the membrane bioreactor through pipelines.
According to a specific embodiment of the present disclosure, the online dissolved oxygen detection device includes an oxygen dissolving instrument; and/or the presence of a gas in the gas,
the aeration device comprises a microporous aeration pipe arranged at the bottom of the aerobic tank, and the microporous aeration pipe is communicated with the air outlet of the fan through a pipeline.
According to a specific embodiment of the present disclosure, the gas stripping reflux device includes a first three-way valve, a first end of the first three-way valve is communicated with the membrane biological reaction tank through a pipeline, a second end of the first three-way valve is communicated to the oxygen elimination tank through a water pipe, and a third end of the first three-way valve is communicated with the fan.
According to a specific embodiment of the present disclosure, the system further comprises a phosphorus removal agent dosing device, a polyaluminium chloride dosing pump, a second three-way valve and a lift pump;
one end of the polyaluminium chloride dosing pump and one end of the lifting pump are respectively connected with the dephosphorization agent dosing device and the water inlet tank through water pipes, the other ends of the polyaluminium chloride dosing pump and the lifting pump are respectively connected with the first end and the second end of the second three-way valve through water pipes, and the third end of the second three-way valve is used for pumping the mixed dephosphorization agent and sewage into the anoxic tank.
According to a specific embodiment of the present disclosure, the system further comprises a backwash pump, a third three-way valve and a sodium hypochlorite dosing device;
one end of the backwashing pump is externally connected with a backwashing water tank, the other end of the backwashing pump and the sodium hypochlorite dosing device are respectively connected to the first end and the second end of the third three-way valve through water pipes, and the third end of the third three-way valve pumps the mixed sodium hypochlorite medicament and backwashing water to the water outlet of the membrane bioreactor through a pipeline.
According to a specific embodiment of the present disclosure, the system further comprises an intermediate relay, a contactor, a fuse, and a valve;
the input/output port of the central processing unit is connected with the intermediate relay through a hard connecting wire;
the contactor and the fuse are electrically connected with the intermediate relay respectively;
the contactor is electrically connected with the motor, and the valve is electrically connected with the fuse.
According to a specific embodiment of the present disclosure, the system further comprises an isolator and a sensor disposed in the wastewater treatment section tank;
the isolator is electrically connected with the input/output port of the central processing unit, and the sensor is electrically connected with the isolator.
Compared with the prior art, the method has the following beneficial effects:
the application provides a handle rural domestic sewage device's control system, with the pond intercommunication that disappears between intake chamber and sewage treatment, the pond that disappears, oxygen deficiency pond, good oxygen pond and membrane bioreaction pond communicate in proper order, make sewage pass through the treatment in the pond that disappears, oxygen deficiency pond, good oxygen pond and membrane bioreaction pond in proper order through the inlet tube intercommunication. On one hand, a membrane bioreactor is arranged in the membrane bioreactor, a water outlet of the membrane bioreactor is communicated with a first type water outlet pipe, and the sewage treated by the oxygen elimination tank, the oxygen-poor tank, the aerobic tank and the membrane bioreactor is communicated to a water storage tank through the water outlet of the membrane bioreactor and the first type water outlet pipe so as to realize first type water outlet with higher water purification standard. On the other hand, the overflow port is formed in the wall of the membrane biological reaction tank and communicated with the second water outlet pipe, and sewage treated by the oxygen elimination tank, the oxygen-poor tank and the aerobic tank is communicated to the water storage tank through the overflow port and the second water outlet pipe, namely, water in the membrane biological reaction tank is directly output without being purified by the membrane biological reactor, so that second water with relatively low water purification standard is discharged. Like this, can realize the play water of two kinds of standards on same equipment, satisfy the water purification demand of different users or scene. In addition, an upper computer and a central processing unit in the sewage treatment room are additionally arranged and connected with a remote server, so that the real-time reading and remote operation of the data of the rural domestic sewage treatment device can be realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic diagram illustrating the components of a control system of a rural domestic sewage treatment device provided in an embodiment of the present application;
FIG. 2 is an interactive schematic view of an electric control assembly involved in a control system of a rural domestic sewage treatment device provided by an embodiment of the application;
FIG. 3 is a schematic diagram of the system control of the control system of the rural domestic sewage treatment device according to the embodiment of the present application;
FIGS. 4A and 4B are logic diagrams of a first type of effluent standard involved in a control system of a rural domestic sewage treatment device provided by the embodiment of the application;
fig. 5A and 5B are logic diagrams of a second type of effluent standard related to a control system of a rural domestic sewage treatment device provided by the embodiment of the application.
Icon:
100-water inlet part; 110-a water inlet pool;
200-sewage treatment room; 210-an oxygen elimination pool; 211-perforated pipe; 220-anoxic pond; 230-an aerobic tank; 231-an aeration device; 240-membrane biological reaction tank; 241-a membrane bioreactor; 242-membrane bioreactor air inlet; 243-water outlet of membrane bioreactor; 244-overflow; 245-a gas stripping reflux unit;
300-water outlet part; 310-a motor; 320-ultraviolet disinfection device; 330-a water storage tank; 340-a water production valve; 410-a phosphorus removal medicament dosing device; 411-polyaluminum chloride dosing pump; 412-a lift pump; 420-a fan; 430-sodium hypochlorite dosing device; 431-backwash pump;
500-an electronic control assembly; 501-a central processing unit; 502-an upper computer; 503-a remote server; 504-intermediate relay; 505-an isolator; 506-a contactor; 507-a fuse; 509-a valve; 510-a sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
Hereinafter, the terms "including", "having", and their derivatives, which may be used in various embodiments of the present invention, are only intended to indicate specific features, numbers, steps, operations, elements, components, or combinations of the foregoing, and should not be construed as first excluding the existence of, or adding to, one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.
Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of the present invention belong. The terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning that is consistent with their contextual meaning in the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in various embodiments of the present invention.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Referring to fig. 1 and 2, fig. 1 is a schematic diagram illustrating a control system of a rural domestic sewage treatment device according to an embodiment of the present application, and fig. 2 is an interactive schematic diagram illustrating electric control components involved in the control system of the rural domestic sewage treatment device according to an embodiment of the present application. In the embodiment of the application, the control system of the rural domestic sewage treatment device can realize water outlet of two standards, read data of equipment in real time and remotely operate the equipment, improve the working efficiency and simplify the working process.
As shown in fig. 1 and 2, the disclosed embodiment of the present application provides a control system of a device for treating rural domestic sewage, which comprises a water inlet part 100, a sewage treatment room 200, a water outlet part 300 and an electric control assembly 500.
The water inlet portion 100 includes a water inlet tank 110.
The sewage treatment room 200 comprises an oxygen elimination pool 210, an oxygen-poor pool 220, an aerobic pool 230 and a membrane biological reaction pool 240, wherein the water inlet pool 110 is communicated with the oxygen elimination pool 210 through a water inlet pipe, the oxygen elimination pool 210, the oxygen-poor pool 220, the aerobic pool 230 and the membrane biological reaction pool 240 are sequentially communicated, a water overflow opening 244 is formed in the wall of the membrane biological reaction pool 240, a membrane biological reactor 241 is arranged in the membrane biological reaction pool 240, and the membrane biological reactor 241 is provided with a membrane biological reactor air inlet 242 and a membrane biological reactor water outlet 243.
The water inlet portion 100 includes at least one water inlet tank 110, the water inlet tank 110 is used for storing sewage to be treated, and the water inlet tank 110 communicates the sewage into the sewage treatment room 200 through a water inlet pipe. A liquid level detection device (not shown) can be further arranged in the water inlet pool 110, the liquid level of the water inlet pool 110 is judged through the liquid level detection device, and the collection of domestic sewage is waited when the liquid level is at a low state level.
The water outlet part 300 comprises a first type water outlet pipe, a second type water outlet pipe, a water storage tank 330 and a motor 310, wherein the motor 310 is arranged at the water outlet 243 of the membrane bioreactor and is used for pumping the sewage treated by the membrane bioreactor 241. The water outlet 243 of the membrane bioreactor is communicated with the water storage tank 330 through the first-class water outlet pipe, and the first-class water outlet pipe is provided with a water production valve 340 for controlling the opening or closing of the first-class water outlet so as to realize the first-class water outlet with higher water purification standard. The sewage treated by the anoxic tank 210, the anaerobic tank and the aerobic tank 230 in the membrane biological reaction tank 240 is communicated to the water storage tank 330 through the overflow port 244 and the second type water outlet pipe under the action of gravity, that is, the water in the membrane biological reaction tank 240 is directly output without being purified by the membrane biological reactor 241, so that the second type water outlet with relatively low water purification standard is realized.
Wherein, be provided with the level gauge in the biological reaction pond for judge the pond liquid level. The first type of water outlet mode and the second type of water outlet mode are alternately used and cannot be used simultaneously in the same time period, so that the coexistence of the two standard water outlet modes on the same equipment is realized, and the water purification requirements of different users or scenes are met.
As shown in fig. 2, the electric control assembly 500 comprises a central processing unit 501, an upper computer 502 and a remote server 503, the membrane bioreactor 241 and the upper computer 502 are respectively connected with the central processing unit 501, and the central processing unit 501 is in communication connection with the remote server 503 to realize real-time reading and remote operation of data of the membrane bioreactor 241.
According to an embodiment of the present disclosure, the system further includes an online dissolved oxygen detection device (not shown), a biofilm active treatment device (not shown), an aeration device 231, a gas stripping reflux device 245, an ultraviolet disinfection device 320;
the biofilm activity treatment device is arranged in the oxygen elimination tank 210, and the aeration device 231 and the online dissolved oxygen detection device are arranged in the aerobic tank 230 and are used for detecting the oxygen content in the aerobic tank 230. The gas stripping reflux device 245 is respectively communicated with the oxygen eliminating tank 210 and the membrane biological reaction tank 240, and the ultraviolet disinfection device 320 is arranged between the membrane biological reaction tank 240 and the water storage tank 330 and is used for ultraviolet disinfection of the treated sewage.
According to a specific embodiment of the present disclosure, the gas stripping reflux device 245, the online dissolved oxygen detection device, the biofilm active treatment device, the aeration device 231, and the ultraviolet disinfection device 320 are all connected to an input/output port of the central processing unit 501, so as to realize real-time reading and remote operation of data of the gas stripping reflux device 245, the online dissolved oxygen detection device, the biofilm active treatment device, the aeration device 231, and the ultraviolet disinfection device 320.
According to a specific embodiment of the present disclosure, the system further comprises a blower 420. The air outlet of the blower 420 is communicated to the perforated pipe 211 at the bottom of the anoxic tank 210 and the anoxic tank 220, the aeration device 231 at the bottom of the aerobic tank 230, the aerobic tank 230 and the membrane bioreactor air inlet 242 through pipelines.
According to an embodiment of the present disclosure, the online dissolved oxygen detecting device includes a dissolved oxygen meter, and/or the aeration device 231 includes a microporous aeration pipe disposed at the bottom of the aerobic tank 230, and the microporous aeration pipe is communicated with the air outlet of the blower 420 through a pipeline.
According to a specific embodiment of the present disclosure, the gas stripping reflux device 245 includes a first three-way valve (not shown), a first end of the first three-way valve is communicated with the membrane biological reaction tank 240 through a pipeline, a second end of the first three-way valve extends into the anoxic tank 210, and a third end of the first three-way valve is communicated with the blower 420.
The air blower 420 inputs pressurized air into the pipeline of the air stripping reflux device 245, a gas-liquid mixture with density smaller than that of the mixed liquid outside the pipe is formed in the pipeline of the air stripping reflux device 245, according to the liquid balance principle, the liquid level of the gas-liquid mixture with small relative density is higher than that of the mixed liquid outside the pipe, and the mixed liquid outside the pipe continuously flows into the membrane biological reaction tank 240 under the combined action of the suction force formed by the rising of the gas-liquid mixture inside the pipe and the pressure of the mixed liquid outside the pipe, so that reflux is realized.
According to a specific embodiment of the present disclosure, the system further includes a phosphorus removal agent dosing device 410, a polyaluminum chloride dosing pump 411, a second three-way valve (not shown), and a lift pump 412.
One end of the polyaluminium chloride dosing pump 411 and one end of the lift pump 412 are respectively connected with the phosphorus removal agent dosing device 410 and the water inlet tank 110 through water pipes, the other end of the polyaluminium chloride dosing pump is respectively connected with a second three-way valve through a water pipe, and the third end of the second three-way valve pumps the mixed phosphorus removal agent and sewage into the oxygen elimination tank 210.
According to an embodiment of the present disclosure, as shown in fig. 1, the system further includes a backwash pump 431, a third three-way valve (not shown), and a sodium hypochlorite dosing device 430. One end of the backwashing pump 431 is externally connected with a backwashing water pool, the other end of the backwashing pump 431 and the sodium hypochlorite dosing device 430 are respectively connected with a third three-way valve through a water pipe, and the third end of the third three-way valve pumps the mixed sodium hypochlorite medicament and backwashing water to the water outlet 243 of the membrane bioreactor through a pipeline.
On the basis of the above embodiments, as shown in fig. 3, a system control schematic diagram of a control system of a rural domestic sewage treatment device provided in the embodiment of the present application is shown. The system includes an intermediate relay 504, a contactor 506, a fuse 507, and a valve 509. The input/output port of the central processor 501 is connected with the intermediate relay 504 through a hard connecting wire, the contactor 506 and the fuse 507 are respectively electrically connected with the intermediate relay 504, the contactor 506 is electrically connected with the motor 310, and the valve 509 is electrically connected with the fuse 507.
According to a specific embodiment of the present disclosure, the system further comprises a separator 505 and a sensor 510 disposed in the wastewater treatment section tank. The isolator 505 is electrically connected to the input/output port of the cpu 501, and the sensor 510 is electrically connected to the isolator 505.
The central processing unit 501 is in communication connection with the upper computer 502 and the remote server 503 on site respectively to form a closed-loop transmission network, so that multiple control on site and remote is realized. The upper computer 502 performs data acquisition, parameter setting, alarm recording, historical data recording and field control on field equipment through the central processing unit 501. The remote server 503 is connected to the central processor 501, and can realize all-weather remote data acquisition and remote operation. The input/output port of the central processor 501 is connected with the intermediate relay 504 through a hard connection line to realize digital quantity output and input of the input/output port, the central processor 501 indirectly controls the contactor 506 through the intermediate relay 504 to realize control of the motor 310, and data receipt and feedback are performed on the running state of the motor 310 through the contactor 506 and the intermediate relay 504. The input/output port of the central processing unit 501 is connected with the fuse 507 through hard connection, so that the state control of the valve 509 is realized, meanwhile, the state bit carried by the valve 509 is fed back to the input/output port of the central processing unit 501, the input/output port of the central processing unit 501 realizes the acquisition and setting of the data of the sensor 510 through the isolator 505, and the data is isolated through the isolator 505, so that the safety of the central processing unit 501 is ensured, and the data acquisition precision is also improved.
In the specific assembly, each device in fig. 1 is connected with an intermediate relay and a contactor. The fan 420 is connected with an intermediate relay KA1 and a contactor KM1, the lifting pump 412 is connected with an intermediate relay KA2 and a contactor KM2, the backwashing pump 431 is connected with an intermediate relay KA3 and a contactor KM3, the sodium hypochlorite dosing device 430 is connected with an intermediate relay KA4 and a contactor KM4, the polyaluminium chloride dosing pump 411 is connected with an intermediate relay KA5 and a contactor KM5, the ultraviolet disinfection device 320 is connected with an intermediate relay KA6 and a contactor KM6, and the water production valve 340 is connected with an intermediate relay KA7 and a contactor KM 7.
The central processor 501 sends a signal to the intermediate relay KA1 to enable the intermediate relay KA1 to be powered on and closed, and after the intermediate relay KA1 is closed, the contactor KM1 is powered on and sucked, so that a loop of the fan 420 is connected to drive the fan 420 to work; the central processor 501 sends a signal to the intermediate relay KA2 to enable the intermediate relay KA2 to be powered on and closed, and after the intermediate relay KA2 is closed, the contactor KM2 is powered on and sucked, so that a loop of the lift pump 412 is connected to drive the lift pump 412 to work; the central processor 501 sends a signal to an intermediate relay KA3 to enable the intermediate relay KA3 to be powered on and closed, and after the intermediate relay KA3 is closed, the contactor KM3 is powered on and sucked, so that a loop of the backwashing pump 431 is connected to drive the backwashing pump 431 to work; the central processor 501 sends a signal to the intermediate relay KA4 to enable the intermediate relay KA4 to be powered on and closed, and after the intermediate relay KA4 is closed, the contactor KM4 is powered on and sucked, so that a loop of the sodium hypochlorite dosing device 430 is connected to drive the sodium hypochlorite dosing device 430 to work; the central processor 501 sends a signal to the intermediate relay KA5 to enable the intermediate relay KA5 to be powered on and closed, and after the intermediate relay KA5 is closed, the contactor KM5 is powered on and attracted, so that a loop of the polyaluminium chloride dosing pump 411 is connected to drive the polyaluminium chloride dosing pump 411 to work; the central processor 501 sends a signal to the intermediate relay KA6 to enable the intermediate relay KA6 to be powered on and closed, and after the intermediate relay KA6 is closed, the contactor KM6 is powered on and sucked, so that a loop of the ultraviolet disinfection device 320 is connected to drive the ultraviolet disinfection device 320 to work; the central processor 501 sends a signal to the intermediate relay KA7 to enable the intermediate relay KA7 to be powered on and closed, and after the intermediate relay KA7 is closed, the contactor KM7 is powered on and sucked, so that the loop of the water production valve 340 is connected to drive the water production valve 340 to work.
Wherein, the sensor 510 includes, but is not limited to, pressure, flow, liquid level, dissolved oxygen concentration, etc. sensors installed on the sewage treatment equipment.
In addition, the embodiment of the disclosure also provides a specific implementation mode, and the specific implementation mode is mainly further limited for two types of water outlet modes. As shown in fig. 4A, 4B, 5A, and 5B.
Fig. 4A and 4B are logic diagrams of a first type of effluent standard related to a control system of a rural domestic sewage treatment device provided by the embodiment of the application. After the automatic operation of the equipment is started, the liquid level of the water inlet pool 110 is judged by the liquid level detection device, and the collection of the domestic sewage is waited when the liquid level is at a low state level. When the liquid level of the water inlet tank 110 reaches a set value, the lift pump 412 is started, and simultaneously the polyaluminium chloride dosing pump 411 is started while the lift pump 412 is started, wherein the set ratio of the starting time to the stopping time is 1: and 5, pumping the mixed phosphorus removal agent and the sewage into the sewage treatment room 200. When water is fed and medicine is added, the dissolved oxygen meter detects the oxygen content in the aerobic tank 230 in real time, and the blower 420 is started or stopped by judging the dissolved oxygen content. When the oxygen content in the aerobic tank 230 is lower than 2mg/L, the fan 420 is started, and when the oxygen content in the aerobic tank 230 is higher than 4mg/L, the fan 420 is closed. And starting timing after the aeration is started, wherein the second electromagnetic valve is closed after aeration is carried out for 3 minutes, and the first electromagnetic valve is opened for aeration for 2 minutes. After the steps are completed, the liquid level in the membrane biological reaction tank 240 is judged, when the liquid level in the membrane biological reaction tank 240 is lower than the membrane height position of the membrane biological reactor, the lift pump 412 continues to pump the sewage to the sewage treatment room 200, when the liquid level in the membrane biological reaction tank 240 is higher than the water production position, whether the bypass valve is in a closed state is detected, the water production valve 340 is opened without error, and the time proportion of opening and closing the motor 310 is 4: 1, circularly starting the membrane biological reaction tank 240 until the liquid level is lower than the water production level, and counting the time length of the starting time of the motor 310 when the motor is started.
When the cumulative opening time of the motor 310 reaches 24 hours, the lift pump 412, the polyaluminium chloride dosing pump 411, the motor 310 and the water production valve 340 are all stopped or closed in place, the backwashing valve is opened after no error is detected, the backwashing time length is set to 2 minutes, and the time for starting the motor 310 at this time is accumulated again after backwashing is completed.
The backwashing medicine adding time is set to be 168 hours of the accumulated opening time of the backwashing pump 431, when the time is 168 hours, the lifting pump 412, the polyaluminium chloride medicine adding pump 411, the motor 310 and the water producing valve 340 are all stopped or closed in place, after the detection is correct, the backwashing valve is opened, the sodium hypochlorite medicine adding device 430 is opened while the backwashing pump 431 is started, the membrane bioreactor 241 is cleaned by the medicine, the cleaning time is 2 minutes of accumulation, and the time is accumulated again after the cleaning is finished.
Fig. 5A and 5B are logic diagrams of a second type of effluent standard related to a control system of a rural domestic sewage treatment device provided by the embodiment of the application. After the automatic operation of the equipment is started, the liquid level of the water inlet pool 110 is judged by the liquid level detection device, and the collection of the domestic sewage is waited when the liquid level is at a low state level. When the liquid level of the water inlet tank 110 reaches a set value, the lift pump 412 is started, and simultaneously the polyaluminium chloride dosing pump 411 is started while the lift pump 412 is started, wherein the set ratio of the starting time to the stopping time is 1: and 5, pumping the mixed phosphorus removal agent and the sewage into the sewage treatment room 200. When water is fed and medicine is added, the dissolved oxygen meter detects the oxygen content in the aerobic tank 230 in real time, and the blower 420 is started or stopped by judging the dissolved oxygen content. When the oxygen content in the aerobic tank 230 is lower than 2mg/L, the fan 420 is started, and when the oxygen content in the aerobic tank 230 is higher than 4mg/L, the fan 420 is closed. And starting timing after the aeration is started, wherein the second electromagnetic valve is closed after aeration is carried out for 3 minutes, and the first electromagnetic valve is opened for aeration for 2 minutes. After the above steps are completed, the liquid level in the membrane biological reaction tank 240 is judged, when the liquid level in the membrane biological reaction tank 240 is lower than the membrane height position of the membrane bioreactor, the above steps are continuously repeated, when the liquid level in the membrane biological reaction tank 240 is higher than the overflow opening 244 on the tank wall of the membrane biological reaction tank 240, the lift pump 412, the polyaluminium chloride dosing pump 411 and the motor 310 are stopped, the water production valve 340 is closed in place, the bypass valve is opened in place, and the fan 420 and the ultraviolet disinfection device 320 are closed.
In summary, according to the control system of the rural domestic sewage treatment device provided by the present application, all the control terminals and the feedback terminals are integrated on one central processing unit for logic calculation and control, so that unnecessary equipment investment can be reduced, and the construction cost can be saved. Meanwhile, the failure points of the equipment can be reduced by concentrating on one central processing unit, the communication time of each equipment is shortened, and the reaction efficiency, the reliability and the reaction sensitivity of the equipment are improved. Secondly, this application reads the data of each sensor and simultaneously according to the on-the-spot debugging requirement, and the start-stop of each equipment of control that can be artificial has accomplished the effective combination of two kinds of control modes. Host computer and central processing unit in this application are connected with remote server, realize reading in real time and remote operation sewage device's data. In addition, this application provides two kinds of water modes of first kind and second kind to can guarantee that production is not influenced through on-the-spot control button when field device meets the trouble, these three kinds of water control modes of going out not only can satisfy the production requirement of production pluralism, also can satisfy the emergency control of on-the-spot emergency.
In all examples shown and described herein, any particular value should be construed as merely exemplary, and not as a limitation, and thus other examples of example embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.
Claims (10)
1. A control system of a rural domestic sewage treatment device is characterized by comprising a water inlet part, a sewage treatment room, a water outlet part and an electric control assembly;
the water inlet part comprises a water inlet pool;
the sewage treatment room comprises an oxygen elimination pool, an oxygen-poor pool, an aerobic pool and a membrane biological reaction pool, wherein the water inlet pool is communicated with the oxygen elimination pool through a water inlet pipe, the oxygen elimination pool, the oxygen-poor pool, the aerobic pool and the membrane biological reaction pool are sequentially communicated, an overflow port is formed in the wall of the membrane biological reaction pool, a membrane biological reactor is arranged in the membrane biological reaction pool, and the membrane biological reactor is provided with a membrane biological reactor air inlet and a membrane biological reactor water outlet;
the water outlet part comprises a first type water outlet pipe, a second type water outlet pipe, a water storage tank and a motor, the motor is arranged at the water outlet of the membrane bioreactor, the water outlet of the membrane bioreactor is communicated with the water storage tank through the first type water outlet pipe, and the membrane bioreactor is communicated with the water storage tank through the overflow port and the second type water outlet pipe;
the electric control assembly comprises a central processing unit, an upper computer and a remote server, the membrane bioreactor and the upper computer are respectively connected with the central processing unit, and the central processing unit is in communication connection with the remote server.
2. The system of claim 1, further comprising an online dissolved oxygen detection device, a biofilm active treatment device, an aeration device, a gas stripping reflux device, an ultraviolet disinfection device;
the biological membrane active treatment device is arranged in the oxygen elimination tank, the aeration device and the online dissolved oxygen detection device are arranged in the aerobic tank, the air stripping backflow is respectively communicated with the oxygen elimination tank and the membrane biological reaction tank, and the ultraviolet disinfection device is arranged between the membrane biological reaction tank and the water storage tank.
3. The system of claim 2, wherein the gas stripping reflux device, the online dissolved oxygen detection device, the biofilm active treatment device, the aeration device and the ultraviolet disinfection device are all connected with an input/output port of a central processing unit.
4. The system of claim 2, further comprising a fan;
the air outlet of the fan is respectively communicated to the oxygen elimination tank and the perforated pipe at the bottom of the oxygen-deficient tank, the aeration device at the bottom of the aerobic tank, the membrane biological reaction tank and the air inlet of the membrane biological reactor through pipelines.
5. The system of claim 4, wherein the online dissolved oxygen detection device comprises an oxygen dissolving meter; and/or the presence of a gas in the gas,
the aeration device comprises a microporous aeration pipe arranged at the bottom of the aerobic tank, and the microporous aeration pipe is communicated with the air outlet of the fan through a pipeline.
6. The system of claim 4, wherein the gas stripping reflux device comprises a first three-way valve, a first end of the first three-way valve is communicated with the membrane biological reaction tank through a pipeline, a second end of the first three-way valve is communicated to the oxygen elimination tank along a water pipe, and a third end of the first three-way valve is communicated with the fan.
7. The system of claim 1, further comprising a phosphorus removal agent dosing device, a polyaluminum chloride dosing pump, a second three-way valve, and a lift pump;
one end of the polyaluminium chloride dosing pump and one end of the lifting pump are respectively connected with the phosphorus removal agent dosing device and the water inlet tank through water pipes, the other ends of the polyaluminium chloride dosing pump and the lifting pump are respectively connected with the first end and the second end of the second three-way valve through water pipes, and the third end of the second three-way valve is used for pumping the mixed phosphorus removal agent and sewage into the oxygen elimination tank.
8. The system of claim 1, further comprising a backwash pump, a third three-way valve, and a sodium hypochlorite dosing device;
one end of the backwashing pump is externally connected with a backwashing water tank, the other end of the backwashing pump and the sodium hypochlorite dosing device are respectively connected to the first end and the second end of the third three-way valve through water pipes, and the third end of the third three-way valve pumps the mixed sodium hypochlorite medicament and backwashing water to the water outlet of the membrane bioreactor through a pipeline.
9. The system of claim 1, further comprising an intermediate relay, contactor, fuse, and valve;
the input/output port of the central processing unit is connected with the intermediate relay through a hard connecting wire;
the contactor and the fuse are electrically connected with the intermediate relay respectively;
the contactor is electrically connected with the motor, and the valve is electrically connected with the fuse.
10. The system of claim 9, further comprising an isolator and a sensor disposed in the wastewater treatment room;
the isolator is electrically connected with the input/output port of the central processing unit, and the sensor is electrically connected with the isolator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022638973.1U CN213623766U (en) | 2020-11-16 | 2020-11-16 | Control system of rural domestic sewage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022638973.1U CN213623766U (en) | 2020-11-16 | 2020-11-16 | Control system of rural domestic sewage treatment device |
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| CN213623766U true CN213623766U (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022638973.1U Active CN213623766U (en) | 2020-11-16 | 2020-11-16 | Control system of rural domestic sewage treatment device |
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| CN (1) | CN213623766U (en) |
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