CN216711761U - Drinking water defluorination processing system - Google Patents
Drinking water defluorination processing system Download PDFInfo
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- CN216711761U CN216711761U CN202122470353.6U CN202122470353U CN216711761U CN 216711761 U CN216711761 U CN 216711761U CN 202122470353 U CN202122470353 U CN 202122470353U CN 216711761 U CN216711761 U CN 216711761U
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Abstract
The utility model provides a drinking water defluorination treatment system. The system comprises: a defluorination medicament adding device, a pipeline mixing device, a membrane filtering device and a central control device; the fluorine-removing agent adding device is used for adding a fluorine-removing agent into the raw water inlet pipeline; the water inlet end of the pipeline mixing device is connected with the water outlet of the raw water; the membrane filtering device is used for carrying out turbidity treatment on the water body flowing out of the pipeline mixing device; and the central control device is used for controlling the operation of the whole system, monitoring the fluorine content of the produced water in the water production side of the membrane filtering device and regulating and controlling the fluorine removal agent adding amount of the fluorine removal agent adding device according to the fluorine content. The system is simple to operate, high in water production rate, low in operation cost, high in water production qualification rate and convenient to use, and meanwhile, parameters of the reagent metering pump can be adjusted according to the local fluorine content, the reagent adding amount is changed, and the water quality after fluorine removal can reach the national sanitary standard for drinking water.
Description
Technical Field
The utility model relates to the technical field of drinking water treatment, and mainly relates to a drinking water defluorination treatment system.
Background
The fluoride concentration in the drinking water is regulated to be not more than 1.0mg/L by the sanitary Standard for Drinking Water GB5749-2006 in China, and the proper fluorine content in the drinking water is generally considered to be 0.5-1.0 mg/L. Nearly one hundred million people live in high fluorine areas in China, fluorine victims can reach tens of millions of people, and the fluorine intake mainly comes from drinking water. At present, in drinking water sources in many areas at home and abroad, the fluoride content exceeds the health standard, the highest fluoride content even exceeds the health standard by dozens of times, and the defluorination of drinking water is closely related to the health of people, so that great demand exists for the defluorination of drinking water.
However, the existing mainstream fluorine removal equipment mainly comprises a membrane method and an adsorption method, the membrane method fluorine removal equipment generally has the problems of large power consumption, low water yield and serious water resource waste, the adsorption method fluorine removal equipment has the problems of shorter and shorter regeneration period, frequent regeneration operation and large labor cost consumption, and simultaneously the phenomenon of water outlet pause or unqualified outlet fluorine can be caused in the saturated regeneration stage of the fluorine removal filter material, namely the qualified rate of water quality can not reach 100 percent at all, the regeneration process can also generate fluorine-containing wastewater with high pH value and high concentration, the wastewater treatment operation is complex, the full-automatic operation or remote control is difficult to realize, and the total operation cost is higher.
SUMMERY OF THE UTILITY MODEL
In order to solve the difficult problems in the prior art, the utility model designs a defluorination agent adding device 1 and a membrane filtering device 3 which can perform synergistic action in the system so as to perform timely online pollution discharge and interception on floccules generated by online adding of the defluorination agent, and simultaneously designs a central control device so as to perform full-automatic control on the whole system. The specific contents are as follows:
the utility model provides a drinking water defluorination treatment system, which comprises: a fluorine removal agent adding device 1, a pipeline mixing device 2, a membrane filtering device 3 and a central control device 4;
the defluorination medicament adding device 1 is connected with a water inlet pipeline of the raw water through a defluorination medicament adding pipe, and the water outlet end of the pipeline mixing device 2 is connected with the water inlet end of the membrane filtering device 3;
the water production end of the membrane filtering device 3 is provided with an online monitoring module 4-1; the central control device 4 is respectively in communication connection with the defluorination agent adding device 1 and the online monitoring module 4-1.
Optionally, the membrane filtering device 3 comprises a self-cleaning filter 3-1 with a filter screen pore size of 100-200 microns and a membrane filter 3-2 with a filter membrane pore size of 0.001-0.1 microns;
the water inlet end of the self-cleaning filter 3-1 is connected with the water outlet end of the pipeline mixing device 2 in series, and the water outlet end of the self-cleaning filter 3-1 is connected with the water inlet end of the membrane filter 3-2 in series; the water outlet end of the membrane filter 3-2 is connected with a water producing mother pipe.
Optionally, the system further comprises a sewage treatment unit 5;
a first sewage draining port is formed in the self-cleaning filter 3-1, and a second sewage draining port and a third sewage draining port are formed in the membrane filter 3-2;
the first sewage draining port, the second sewage draining port and the third sewage draining port are respectively connected with the sewage treatment device 5.
Optionally, the second sewage draining outlet is arranged on the water producing side of the membrane filter 3-2 close to the filtering membrane; the third sewage draining outlet is arranged on the water inlet side of the filtering membrane in the membrane filter 3-2.
Optionally, the system further comprises a backwash device 6; and a flushing port of the backwashing device 6 is arranged at the upper part of the water producing side of the filtering membrane.
Optionally, the backflushing device 6 comprises a backflushing assembly;
the backwash assembly comprises: a backwashing water tank, a backwashing water pump and a backwashing water inlet pipe; the backwashing water pump is connected in series and arranged on the backwashing water inlet pipe; one end of the backwashing water inlet pipe is communicated with the backwashing water tank, and the outlet of the other end of the backwashing water inlet pipe is used as the flushing port arranged at the upper part of the water producing side of the filtering membrane.
Optionally, the system further comprises a gas washing device 7; and the air inlet of the air washing device 7 is arranged at the lower part of the water inlet side of the filtering membrane.
Optionally, the gas washing device 7 comprises a gas washing assembly;
the air washing component comprises a vortex air pump, an air outlet of the vortex air pump is used as an air inlet of the air washing device, and the air inlet is formed in the lower portion of the water inlet side of the filtering membrane.
Optionally, the system further comprises a drug washing device 8; the medicine inlet of the medicine washing device 8 is arranged at the lower part of the water inlet side of the filtering membrane.
Optionally, the drug washing device 8 comprises a drug washing assembly;
the subassembly is washed to medicine includes: a medicament box, a medicament feeding pump and a medicament inlet pipe; the medicament feeding pump is arranged on the medicament inlet pipe in series; one end of the medicine inlet pipe is communicated with the medicine box, and the outlet of the other end of the medicine inlet pipe is used as the medicine inlet and is arranged at the lower part of the water inlet side of the filtering membrane.
Optionally, the fluorine removal agent dosing device 1 includes: a defluorination medicament box, a defluorination medicament feeding pump and a defluorination medicament feeding pipe;
the outlet of the defluorination medicament box is connected with one end of the defluorination medicament inlet pipe, the other end of the defluorination medicament inlet pipe is connected with the raw water inlet pipeline, and the defluorination medicament feeding pump is installed on the defluorination medicament inlet pipe in series.
Optionally, the central control apparatus 4 comprises a defluorination agent control module;
the defluorination agent control module is in communication connection with a defluorination agent adding pump in the defluorination agent adding device 1; and
and the defluorination agent control module is in communication connection with the online monitoring module 4-1.
Optionally, the central control device 4 further comprises a back-washing control module, a gas-washing control module and a drug-washing control module; the back washing control module is in communication connection with the back washing device 6;
the gas washing control module is in communication connection with the gas washing device 7;
the drug washing control module is in communication connection with the drug washing device 8.
Optionally, the central control device 4 further comprises an electric control device, and the electric control device is in communication connection with all electric valves in the system.
The utility model provides a drinking water defluorination treatment system which is simple to operate, high in water yield, low in operation cost, high in water yield qualification rate and convenient to use, and can adjust the parameters of a reagent metering pump according to the local fluorine content, change the dosage of a reagent and ensure that the water quality after defluorination reaches the national sanitary standard for drinking water.
Compared with the prior art, the system provided by the utility model is a treatment system combining integrated defluorination agent and membrane filtration, can be used in high/medium/low fluorine-containing areas, has a wide application range, can stably remove fluorine for a long time, can realize full-automatic operation and remote control, has a simple operation method, short reaction time, low operation cost and stable defluorination effect, and can detect the concentration of fluorine ions in produced water on line. The water yield of the whole treatment system is more than or equal to 95 percent.
Drawings
FIG. 1 shows a schematic diagram of a drinking water defluorination treatment system in an embodiment of the present invention;
FIG. 2 shows a schematic configuration of another drinking water defluorination treatment system in an embodiment of the present invention;
FIG. 3 is a schematic diagram showing a relationship between a water flow direction and a backwashing direction of the filtering membrane in the embodiment;
in the figure, 1, a fluorine removal medicament adding device; 2. a pipeline mixing device; 3. a membrane filtration device; 4. a central control device; 5. a sewage treatment device; 6. a backwashing device; 1-1, a defluorination agent dosing pipe; 3-1, self-cleaning filter; 3-2, a membrane filter; 4-1, an online monitoring module; 3-11, a first drain outlet; 3-12 parts of a sewage discharge pipe; 3-21 and a third sewage draining outlet; 3-22, a filter membrane; 3-23, a waste water drainage pipe; 3-24 parts of a second sewage draining outlet; 3-25, a medicine inlet; 3-26 and an air inlet.
Detailed Description
The following examples are provided to further understand the present invention, not to limit the scope of the present invention, but to provide the best mode, not to limit the content and the protection scope of the present invention, and any product similar or similar to the present invention, which is obtained by combining the present invention with other prior art features, falls within the protection scope of the present invention.
The embodiment of the utility model provides a drinking water defluorination treatment system, which is described in detail by combining the structural schematic diagrams shown in fig. 1, fig. 2 and fig. 3, and specifically comprises the following steps:
as shown in fig. 1, the system includes: a fluorine removal agent adding device 1, a pipeline mixing device 2, a membrane filtering device 3 and a central control device 4;
the defluorination medicament adding device 1 is connected with a water inlet pipeline of raw water through a defluorination medicament adding pipe 1-1, and the water outlet end of the pipeline mixing device 2 is connected with the water inlet end of the membrane filtering device 3;
the water production end of the membrane filtering device 3 is provided with an online monitoring module 4-1; the central control device 4 is respectively in communication connection with the defluorination agent adding device 1 and the online monitoring module 4-1.
As shown in FIG. 2, the membrane filtration device 3 comprises a self-cleaning filter 3-1 with a filter screen pore size of 100 to 200 microns, and a membrane filter 3-2 with a filter membrane pore size of 0.001 to 0.1 microns;
the water inlet end of the self-cleaning filter 3-1 is connected with the water outlet end of the pipeline mixing device 2 in series, and the water outlet end of the self-cleaning filter 3-1 is connected with the water inlet end of the membrane filter 3-2 in series; the water outlet end of the membrane filter 3-2 is connected with a water producing mother pipe.
The self-cleaning filter 3-1 is provided with a first drain outlet 3-11; the first sewage draining port 3-11 is communicated with a sewage draining pipe 3-12 and is communicated with a sewage treatment device 5 through the sewage draining pipe 3-12, and is used for continuously draining the wastewater which is intercepted by the self-cleaning filter and contains the filtered sediment.
The filtering membrane 3-22 in the membrane filter 3-2 is a nanofiltration membrane or/and an ultrafiltration membrane, and may be a combination of a nanofiltration membrane or an ultrafiltration membrane and other filtering membranes. The membrane filter 3-2 is connected with a water production pipe for leading out the purified water. The concentrated water end of the filtering membrane 3-22 is provided with a second sewage draining port 3-24 and is communicated with the sewage treatment device 5 through a waste water draining pipe 3-23, and the waste water containing filtering sediments intercepted by the filtering membrane 3-22 is continuously drained from the second sewage draining port 3-24 through the waste water draining pipe 3-23.
The water production end of the membrane filter 3-2 is connected with the online monitoring module 4-1, the online monitoring module 4-1 is used for online monitoring of fluorine ions in the produced water, and monitored data are transmitted back to the central control device 4 for calculation and processing of the central control device 4.
In the embodiment, the defluorination agent and raw water are mixed and reacted and then enter the self-cleaning filter for primary filtration, the filtered flocculent precipitate is discharged through a sewage discharge pipeline, and the filtrate enters a membrane filtration device connected with the self-cleaning filter in series; the water production section of the filter membrane device is connected with an online fluorine ion content monitoring device, the fluorine concentration of the produced water can be monitored online in real time, if the fluorine content of the drinking water exceeds the requirement, the relevant parameters of the defluorinating agent metering pump can be adjusted on site or remotely, and the adding amount of the agent is changed until the fluorine of the produced water is qualified.
In this embodiment, the system further comprises a backwashing device 6; the flushing port of the backwashing device 6 is arranged at the upper part of the water producing side of the filtering membranes 3-22; and the back washing device 6 is used for back washing the clogging matters intercepted on the filtering membranes 3-22 from the water producing side to the water inlet side of the filtering membranes 3-22 from top to bottom.
Wherein the wastewater after backwashing can be continuously discharged from the second sewage discharge port 3-24 and/or the third sewage discharge port 3-21 through the wastewater discharge pipe 3-23.
In specific implementation, the washing component in the backwashing device 6 can be a pure water backwashing component. Specifically, the pure water backwash assembly includes: backwash pure water tank, backwash water pump and backwash inlet tube. The backwashing water pump is connected in series with the backwashing water inlet pipe, one end of the backwashing water inlet pipe is communicated with the backwashing pure water tank, and the outlet of the other end is arranged at the upper part of the water producing side of the filtering membrane 3-22 as a flushing port;
the operation of the backwashing device 6 is as follows: when the system runs for a period of time, the filtering membranes 3-22 can form certain dirt blockage, then the central control device 4 automatically induces the water inlet and outlet pressure difference of the filtering membranes 3-22, the back washing device 6 is started according to the water inlet and outlet pressure difference of the filtering membranes 3-22, under the action of the electric control device, the fluorine removal agent adding pump is closed, the water inlet valve on the water inlet pipe and the water outlet valve on the water production pipe are closed, the water inlet valve on the back washing water inlet pipe and the valve on the waste water discharge pipe are opened, and the back washing is carried out on the filtering membranes 3-22 through the back washing water inlet pipe.
FIG. 3 is a schematic diagram showing the relationship between the direction of water flow and the direction of backwashing of the filter membrane in the present embodiment. The backwash in this embodiment will be described in detail with reference to fig. 3. Specifically, the backwashing in this embodiment refers to: and backwashing the filtering membranes 3-22 in a direction opposite to the forward flow direction of the water body. For example, if the filtering membrane 3-22 of the membrane filter 3-2 is a cylindrical filtering membrane, the filtering membrane 3-22 is vertically placed, the water inlet is arranged at the bottom of the water inlet side of the filtering membrane 3-22, and the water producing port is arranged at the upper part of the water producing side of the filtering membrane 3-22, so that the water body is filtered from the filtering membrane 3-22 from the bottom to the top, then the filtering membrane 3-22 is backwashed from the upper part of the water producing side of the filtering membrane 3-22 from the top to the bottom and from the water producing side of the filtering membrane 3-22 to the water inlet side, so that the washed sludge flows out from the third sewage discharge port 3-21 of the sewage discharge channel at the water inlet side of the filtering membrane 3-22.
In this embodiment, the system further comprises an air washing device 7; the air inlet 3-26 of the air washing device 7 is arranged at the lower part of the water inlet side of the filtering membrane 3-22; and the air washing device 7 is used for carrying out air washing on the filtering membranes 3-22 from the bottom to the top and from the water inlet sides of the filtering membranes 3-22 on the silted matters intercepted on the filtering membranes 3-22.
Wherein the air-washed dirt is also continuously discharged from the second sewage discharge port 3-24 through the waste water discharge pipe 3-23.
In practical applications, optionally, the air washing component in the air washing device 7 includes a vortex pump. The air inlet is used as an air charging opening and is arranged at the lower part of the water inlet side of the filtering membranes 3-22;
the operation of the backwashing device 7 is as follows: when the system runs for a period of time, the filtering membranes 3-22 can form certain dirt blockage, then the central control device 4 automatically induces the water inlet and outlet pressure difference of the filtering membranes 3-22, the gas washing device 7 is started according to the water inlet and outlet pressure difference of the filtering membranes 3-22, under the action of the electric control device, the defluorination agent adding pump is closed, the water inlet valve on the water inlet pipe and the water outlet valve on the water production pipe are closed, the valve on the air inlet pipe and the valve on the wastewater discharge pipe are opened, and the filtering membranes 3-22 are swept through the gas washing device 7.
In this embodiment, the system further comprises a drug washing device 8; the medicine inlet 3-25 of the medicine washing device 8 is arranged at the lower part of the water inlet side of the filtering membrane 3-22; and the medicine washing device 8 is used for washing the filtering membranes 3-22 with medicine from bottom to top from the water inlet sides of the filtering membranes 3-22 to thoroughly clean the membrane surfaces of the filtering membranes 3-22 and recover the membrane flux. In the specific use process, the medicine washing device (8) comprises a medicine washing component; the medicinal washing component comprises: a medicament box, a medicament feeding pump and a medicament inlet pipe; the medicament adding pump is arranged on the medicament inlet pipe in series; one end of the medicine inlet pipe is communicated with the medicine box, and the outlet of the other end is arranged at the lower part of the water inlet side of the filtering membrane as a medicine inlet.
In the using process, the medicament flushing frequency can be set according to the membrane fouling and blocking condition in the actual using process, and the medicament reacts with the blocking precipitates on the filtering membranes 3-22, so that the precipitates are peeled off from the filtering membranes 3-22 and dissolved in water, the membrane surfaces of the filtering membranes 3-22 are thoroughly cleaned, and the membrane flux is recovered.
In the system provided by this embodiment, the water inlets, the medicine inlets and the water outlets of all the components are respectively communicated through the connecting pipes and controlled by the one-way electric valves, and the central control device 4 further comprises an electric control device which is in communication connection with all the electric valves in the system. The system integrally controls the opening or closing of all electric valves in the system through an electric control device, and realizes the full-automatic operation and remote control of the whole system.
In this embodiment, the central control device 4 further includes a back-washing control module, a gas-washing control module, and a medicine-washing control module.
The back-washing control module is in communication connection with the back-washing device 6. And the backwashing control module is used for monitoring the water inlet and outlet pressure difference of the filtering membranes 3-22 and controlling whether to start the backwashing device 6 according to the water inlet and outlet pressure difference, and/or monitoring the working time of the filtering membranes 3-22 and controlling whether to start the backwashing device 6 according to the time period of the working time.
The air washing control module is in communication connection with the air washing device 7. And the air washing control module is used for monitoring the water inlet and outlet pressure difference of the filtering membranes 3-22 and controlling whether to start the air washing device 7 or not according to the water inlet and outlet pressure difference, and/or is used for monitoring the working time of the filtering membranes 3-22 and controlling whether to start the air washing device 7 or not according to the time period of the working time.
The drug washing control module is in communication connection with the drug washing device 8. And the drug washing control module is used for monitoring the water inlet and outlet pressure difference of the filtering membranes 3-22 and controlling whether to start the drug washing device 8 or not according to the water inlet and outlet pressure difference, and/or is used for monitoring the working time of the filtering membranes 3-22 and controlling whether to start the drug washing device 8 or not according to the time period of the working time.
Thus, the central control device 4 can respectively control the backwashing device 6, the air washing device 7 and the medicine washing device 8 through the backwashing control module, the air washing control module and the medicine washing control module, when the filtering membrane needs to be washed, any one or more of the backwashing device 6, the air washing device 7 and the medicine washing device 8 can be started to wash the filtering membrane, so that the sediment is peeled off from the filtering membranes 3-22 and dissolved in water, the flux of the filtering membrane is recovered, and the service life of the filtering membrane is prolonged.
In this embodiment, the fluorine removing agent adding apparatus 1 includes: a defluorination medicament box, a defluorination medicament adding pump and a defluorination medicament inlet pipe.
The outlet of the defluorination medicament box is connected with one end of the defluorination medicament inlet pipe, the other end of the defluorination medicament inlet pipe is connected with the raw water inlet pipeline, and the defluorination medicament adding pump is installed on the defluorination medicament inlet pipe in series.
In this embodiment, the central control device 4 further includes a defluorination agent control module; the defluorination agent control module is in communication connection with a defluorination agent adding pump in the defluorination agent adding device (1); and the defluorination agent control module is in communication connection with the online monitoring module (4-1).
In order to enable a person skilled in the art to better understand the system provided by the embodiment of the present invention, the applicant explains the operation of the system provided by the embodiment of the present invention in detail. The method comprises the following specific steps:
first, the system provided in this embodiment can be started by the general control button on the central control device 4. Specifically, the method comprises the following steps: when a master control button is started, raw water is sent into a pipeline mixer, a defluorinating agent adding pump is automatically started, the raw water and the defluorinating agent added through a defluorinating agent feeding pipe are fully mixed and reacted in the pipeline mixer according to a preset flow proportion through a water inlet pipe, when water enters a membrane filter 3-2 and is full of a membrane cavity, the whole system enters normal operation, flocculation precipitates, other suspended matters, microorganisms, certain metal elements and the like in the water body after being intercepted by filtering membranes in a self-cleaning filter 3-1 and the membrane filter 3-2 flow out from a sewage discharge port, so that fluorine ions in the water body are removed, and the concentration of fluorine ions in produced water reaches the national sanitary standard for drinking water.
Then, a filter screen is arranged in the self-cleaning filter 3-1, and flocculent precipitate formed after the fluorine removal medicament reacts with the raw water and other suspended matters in the water body can be filtered. When the system runs for a period of time, a certain pressure difference is generated between the water inlet and the water outlet of the self-cleaning filter 3-1, when the pressure difference value is larger than or equal to a set value, the motor of the filter 3-1 is started, the discharge valve is opened, and self-cleaning is started.
And after the system runs for a period of time, the filtering membranes 3-22 can form certain dirt blockage, then the central control device 4 automatically induces the water inlet and outlet pressure difference of the filtering membranes 3-22, the water backwashing device 6 is started according to the water inlet and outlet pressure difference of the filtering membranes 3-22, under the action of the electric control device, the defluorination agent adding pump is closed, the water inlet valve on the water inlet pipe and the water outlet valve on the water production pipe are closed, the water inlet valve on the backwashing water inlet pipe and the valve on the wastewater discharge pipe are opened, and the filtering membranes 3-22 are backwashed through water washing. Or according to the pollution blockage situation, performing air washing and medicament washing, and finally performing forward and backward washing by using water again to thoroughly wash the membrane surfaces of the filtering membranes 3-22 and recover the membrane flux.
And then, an online monitoring module 4-1 which is installed on the water production pipe in series monitors the water production flow on one hand and the fluorine ion content in the water production on the other hand, and respectively sends the detection results to a back washing control module and a fluorine removal agent control module of the central control device 4. The defluorination agent control module regulates and controls the dosage of the defluorination agent dosage device 1 according to the content of the received fluorine ions; and the back washing control module is used for carrying out back washing on the filter membrane at regular time and remotely controlling the dosage of the defluorination medicament and the back washing program in real time.
The drinking water defluorination treatment system provided by the utility model is described in detail, and the principle and the implementation mode of the utility model are explained by applying specific examples, and the description of the examples is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (14)
1. A drinking water defluorination treatment system, said system comprising: a defluorination medicament adding device (1), a pipeline mixing device (2), a membrane filtering device (3) and a central control device (4);
the defluorination medicament adding device (1) is connected with a water inlet pipeline of raw water through a defluorination medicament adding pipe, and the water outlet end of the pipeline mixing device (2) is connected with the water inlet end of the membrane filtering device (3);
an online monitoring module (4-1) is arranged at the water production end of the membrane filtering device (3); the central control device (4) is respectively in communication connection with the defluorination agent adding device (1) and the online monitoring module (4-1).
2. The drinking water defluorination treatment system according to claim 1, wherein said membrane filtration device (3) comprises a self-cleaning filter (3-1) with a filter screen pore size of 100-200 microns, and a membrane filter (3-2) with a filter membrane pore size of 0.001-0.1 microns;
the water inlet end of the self-cleaning filter (3-1) is connected with the water outlet end of the pipeline mixing device (2) in series, and the water outlet end of the self-cleaning filter (3-1) is connected with the water inlet end of the membrane filter (3-2) in series; the water outlet end of the membrane filter (3-2) is connected with a water producing mother pipe.
3. A drinking water defluorination treatment system according to claim 2, further including a waste water treatment unit (5);
a first sewage draining port is formed in the self-cleaning filter (3-1), and a second sewage draining port and a third sewage draining port are formed in the membrane filter (3-2);
the first sewage draining port, the second sewage draining port and the third sewage draining port are respectively connected with the sewage treatment device (5).
4. The drinking water defluorination treatment system according to the claim 3, wherein said second sewage draining outlet is arranged at the water producing side of said membrane filter (3-2) near the filtration membrane; the third sewage draining outlet is arranged on the water inlet side of the filtering membrane in the membrane filter (3-2).
5. The drinking water defluorination treatment system according to claim 2, further comprising a back-flushing means (6); and a flushing port of the backwashing device (6) is arranged at the upper part of the water producing side of the filtering membrane.
6. The drinking water defluorination treatment system according to claim 5, wherein said back-flushing means (6) comprises a back-flushing assembly;
the backwash assembly comprises: a backwashing water tank, a backwashing water pump and a backwashing water inlet pipe; the backwashing water pump is connected in series with the backwashing water inlet pipe; one end of the backwash water inlet pipe is communicated with the backwash water tank, and the outlet of the other end of the backwash water inlet pipe is used as the flushing port arranged at the upper part of the water production side of the filtering membrane.
7. Drinking water defluorination treatment system according to claim 5 or 6, further comprising a gas washing device (7); and the air inlet of the air washing device (7) is arranged at the lower part of the water inlet side of the filtering membrane.
8. The drinking water defluorination treatment system according to claim 7, wherein said gas-washing device (7) comprises a gas-washing assembly;
the air washing component comprises a vortex air pump, an air outlet of the vortex air pump is used as an air inlet of the air washing device (7) and is arranged on the lower portion of the water inlet side of the filtering membrane.
9. The drinking water defluorination treatment system according to claim 8, further comprising a medicinal washing device (8); the medicine inlet of the medicine washing device (8) is arranged at the lower part of the water inlet side of the filtering membrane.
10. The drinking water defluorination treatment system according to claim 9, wherein said medicinal washing device (8) includes a medicinal washing assembly;
the subassembly is washed to medicine includes: a medicament box, a medicament feeding pump and a medicament inlet pipe; the medicament feeding pump is arranged on the medicament inlet pipe in series; one end of the medicine inlet pipe is communicated with the chemical box, and the outlet of the other end of the medicine inlet pipe is used as a medicine inlet of the medicine washing device (8) and is arranged at the lower part of the water inlet side of the filtering membrane.
11. The drinking water defluorination treatment system according to claim 1, wherein said defluorination agent adding means (1) comprises: a defluorination medicament box, a defluorination medicament feeding pump and a defluorination medicament feeding pipe;
the outlet of the defluorination agent box is connected with one end of the defluorination agent inlet pipe, the other end of the defluorination agent inlet pipe is connected with the raw water inlet pipeline, and the defluorination agent adding pump is installed on the defluorination agent inlet pipe in series.
12. The drinking water defluorination treatment system according to claim 11, wherein said central control means (4) comprises a defluorination agent control module;
the defluorination agent control module is in communication connection with a defluorination agent adding pump in the defluorination agent adding device (1); and
the defluorination agent control module is in communication connection with the online monitoring module (4-1).
13. The drinking water defluorination treatment system according to claim 8 or 9, wherein said central control unit (4) further comprises a backwash control module, a gas wash control module and a drug wash control module; the back washing control module is in communication connection with the back washing device (6);
the gas washing control module is in communication connection with the gas washing device (7);
the drug washing control module is in communication connection with the drug washing device (8).
14. A drinking water defluorination treatment system according to any one of claims 1 to 6 and 8 to 12, wherein said central control means (4) further comprises an electric control means, said electric control means being in communication with all electric valves in said system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122470353.6U CN216711761U (en) | 2021-10-13 | 2021-10-13 | Drinking water defluorination processing system |
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| CN202122470353.6U CN216711761U (en) | 2021-10-13 | 2021-10-13 | Drinking water defluorination processing system |
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| CN216711761U true CN216711761U (en) | 2022-06-10 |
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| CN202122470353.6U Active CN216711761U (en) | 2021-10-13 | 2021-10-13 | Drinking water defluorination processing system |
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