Disclosure of Invention
One of the purposes of the invention is to provide a waste water pipeline flushing method of an EDR water purification system, which can be used for flushing waste water pipelines and has the characteristic of simple water pipeline structure, and the defects in the prior art are avoided.
The above object of the present invention is achieved by the following technical measures.
When the flushing is carried out, fresh water of an EDR unit is introduced into a concentrated water conveying pipeline, the concentrated water pipeline is flushed by the fresh water, and other pipelines for discharging the concentrated water and the fresh water generated by the EDR unit are closed.
Preferably, the output side of the EDR unit is provided with a first two-way solenoid valve, a second two-way solenoid valve, a third two-way solenoid valve and a fourth two-way solenoid valve, two ends of the first two-way valve are respectively connected with the fresh water outlet and the fresh water conveying pipeline of the EDR unit, two ends of the second two-way valve are respectively connected with the fresh water outlet and the concentrated water conveying pipeline of the EDR unit, two ends of the third two-way valve are respectively connected with the concentrated water outlet and the concentrated water conveying pipeline of the EDR unit, and two ends of the fourth two-way valve are respectively connected with the concentrated water outlet and the fresh water conveying pipeline of the EDR unit;
when the concentrated water pipeline is washed, the second two-way electromagnetic valve is opened, and the first two-way electromagnetic valve, the third two-way electromagnetic valve and the fourth two-way electromagnetic valve are all closed.
Preferably, when the water purification operation condition is met, the first two-way electromagnetic valve and the fourth two-way electromagnetic valve are opened, and the second two-way electromagnetic valve and the fourth two-way electromagnetic valve are closed;
and when the working condition of pole reversing is performed, the first two-way electromagnetic valve and the fourth two-way electromagnetic valve are closed, and the second two-way electromagnetic valve and the fourth two-way electromagnetic valve are opened.
According to the method for flushing the wastewater pipeline of the EDR water purification system, fresh water of an EDR unit is introduced into a concentrated water conveying pipeline, and the concentrated water pipeline is flushed by the fresh water. Can carry out waste pipe and wash, have the simple characteristics of waterway structure.
Another object of the present invention is to provide an EDR water purification system capable of performing a wastewater pipeline flushing operation, which has a simple water pipeline structure, while avoiding the disadvantages of the prior art.
The object of the invention is achieved by the following technical measures.
When the EDR water purification system is used for flushing, fresh water of an EDR unit is introduced into a concentrated water conveying pipeline, the concentrated water pipeline is flushed by the fresh water, and other pipelines for discharging the concentrated water and the fresh water generated by the EDR unit are closed.
Preferably, the EDR water purification system is provided with an EDR unit, a first two-way solenoid valve, a second two-way solenoid valve, a third two-way solenoid valve and a fourth two-way solenoid valve, two ends of the first two-way valve are respectively connected with a fresh water outlet of the EDR unit and a fresh water conveying pipeline, two ends of the second two-way valve are respectively connected with a fresh water outlet of the EDR unit and a concentrated water conveying pipeline, two ends of the third two-way valve are respectively connected with a concentrated water outlet of the EDR unit and a concentrated water conveying pipeline, and two ends of the fourth two-way valve are respectively connected with a concentrated water outlet of the EDR unit and a fresh water conveying pipeline;
when the water purification operation condition is met, the first two-way electromagnetic valve and the fourth two-way electromagnetic valve are opened, and the second two-way electromagnetic valve and the fourth two-way electromagnetic valve are closed;
when the working condition of pole reversing is adopted, the first two-way electromagnetic valve and the fourth two-way electromagnetic valve are closed, and the second two-way electromagnetic valve and the fourth two-way electromagnetic valve are opened;
when the concentrated water pipeline is washed, the second two-way electromagnetic valve is opened, and the first two-way electromagnetic valve, the third two-way electromagnetic valve and the fourth two-way electromagnetic valve are all closed.
Preferably, a check valve is arranged between the second two-way valve and a pipeline connected with the concentrated water conveying pipeline.
Preferably, a check valve is arranged between the fourth two-way valve and a pipeline connected with the concentrated water conveying pipeline.
Preferably, the system is also provided with a raw water tank, the concentrated water conveying pipeline is connected to the raw water tank body, and a fifth two-way electromagnetic valve is arranged between the concentrated water conveying pipeline and the tap water channel.
Preferably, the device is also provided with a waste water tank, a concentrated water conveying pipeline is connected with the waste water tank, and a waste water valve is arranged on a pipeline between the waste water tank and the concentrated water conveying pipeline.
Preferably, a pre-treatment unit is arranged between the EDR unit and the raw water tank, and raw water in the raw water tank is input to the concentrated water inlet and the fresh water inlet of the EDR unit through pure water treated by the pre-treatment unit.
Preferably, the pre-treatment unit is a PP wool, an RO membrane filtration unit or an activated carbon filtration unit.
Preferably, be provided with the self priming pump, the self priming pump sets up between former water tank and leading processing unit, with the water inlet of water pump income leading processing unit in the former water tank.
Preferably, a post-processing unit is further provided, the fresh water output by the EDR unit is processed by the post-processing unit and then discharged as pure water, and the post-processing unit is a post-carbon rod or ion exchange resin filtering unit.
Preferably, a flow regulating valve is further arranged, and the flow regulating valve is arranged on a pipeline between the post-processing unit and the pure water outlet of the system.
In the EDR water purification system, during flushing, fresh water of the EDR unit is introduced into a concentrated water conveying pipeline, the concentrated water pipeline is flushed by the fresh water, and other pipelines for discharging the concentrated water and the fresh water generated by the EDR unit are closed. The device is provided with an EDR unit, a first two-way electromagnetic valve, a second two-way electromagnetic valve, a third two-way electromagnetic valve and a fourth two-way electromagnetic valve, wherein two ends of the first two-way electromagnetic valve are respectively connected with a fresh water outlet of the EDR unit and a fresh water conveying pipeline, two ends of the second two-way electromagnetic valve are respectively connected with a fresh water outlet of the EDR unit and a concentrated water conveying pipeline, two ends of the third two-way electromagnetic valve are respectively connected with a concentrated water outlet of the EDR unit and a concentrated water conveying pipeline, and two ends of the fourth two-way electromagnetic valve are respectively connected with a concentrated water outlet of the EDR unit and a fresh water; when the water purification operation condition is met, the first two-way electromagnetic valve and the fourth two-way electromagnetic valve are opened, and the second two-way electromagnetic valve and the fourth two-way electromagnetic valve are closed; when the working condition of pole reversing is adopted, the first two-way electromagnetic valve and the fourth two-way electromagnetic valve are closed, and the second two-way electromagnetic valve and the fourth two-way electromagnetic valve are opened; when the concentrated water pipeline is washed, the second two-way electromagnetic valve is opened, and the first two-way electromagnetic valve, the third two-way electromagnetic valve and the fourth two-way electromagnetic valve are all closed. This EDR unit connects 4 two-way solenoid valves behind the E membrane stack, through the break-make combination of valve, realizes the water route distribution of different operating modes. Under the working condition of flushing, the concentrated water conveying pipeline can be thoroughly closed, only fresh water is kept to flow out, and the waste water pipeline is maintained by utilizing the high dissolving capacity and the scouring capacity of the fresh water to scale, so that the risk of long-term operation of the system is reduced.
Drawings
The invention is further illustrated by means of the attached drawings, the content of which is not in any way limiting.
Fig. 1 is a schematic structural view of an EDR water purification system of the present invention.
Example 1.
During flushing, fresh water of an EDR unit is introduced into a concentrated water conveying pipeline, the concentrated water pipeline is flushed by the fresh water, and other pipelines for discharging the concentrated water and the fresh water generated by the EDR unit are closed.
The method can be performed by an EDR water purification system as shown in fig. 1, which is provided with a raw water tank, a waste water tank, a self-priming pump, a pre-treatment unit, an EDR unit, a first two-way solenoid valve, a second two-way solenoid valve, a third two-way solenoid valve, a fourth two-way solenoid valve, a post-treatment unit, and the like.
The raw water tank provides water source supply of the system, the concentrated water conveying pipeline is connected to the raw water tank body, and a fifth two-way electromagnetic valve is arranged between the concentrated water conveying pipeline and the tap water channel. The concentrated water conveying pipeline is connected with the waste water tank, and a waste water valve is arranged on a pipeline between the waste water tank and the concentrated water conveying pipeline.
A pre-treatment unit is arranged between the EDR unit and the raw water tank, and the raw water in the raw water tank is input to a concentrated water inlet and a fresh water inlet of the EDR unit through the pure water treated by the pre-treatment unit. The pre-treatment unit may be a PP wool, RO membrane filtration unit or activated carbon filtration unit.
In order to ensure water source conveying, the EDR water purification system is provided with a self-sucking pump, the self-sucking pump is arranged between the raw water tank and the pre-processing unit, and the raw water tank is pumped into a water inlet of the pre-processing unit.
The output end of the EDR unit is connected with four two-way electromagnetic valves. The two ends of the first two-way valve are respectively connected with a fresh water outlet and a fresh water conveying pipeline of the EDR unit, the two ends of the second two-way valve are respectively connected with a fresh water outlet and a concentrated water conveying pipeline of the EDR unit, the two ends of the third two-way valve are respectively connected with a concentrated water outlet and a concentrated water conveying pipeline of the EDR unit, and the two ends of the fourth two-way valve are respectively connected with a concentrated water outlet and a fresh water conveying pipeline of the EDR unit;
when the water purification operation condition is met, the first two-way electromagnetic valve and the fourth two-way electromagnetic valve are opened, and the second two-way electromagnetic valve and the fourth two-way electromagnetic valve are closed;
when the working condition of pole reversing is adopted, the first two-way electromagnetic valve and the fourth two-way electromagnetic valve are closed, and the second two-way electromagnetic valve and the fourth two-way electromagnetic valve are opened;
when the concentrated water pipeline is washed, the second two-way electromagnetic valve is opened, and the first two-way electromagnetic valve, the third two-way electromagnetic valve and the fourth two-way electromagnetic valve are all closed.
This EDR unit connects 4 two-way solenoid valves behind the E membrane stack, through the break-make combination of valve, realizes the water route distribution of different operating modes. Under the working condition of flushing, the concentrated water conveying pipeline can be thoroughly closed, only fresh water is kept to flow out, and the waste water pipeline is maintained by utilizing the high dissolving capacity and the scouring capacity of the fresh water to scale, so that the risk of long-term operation of the system is reduced.
In order to ensure the accuracy of the water path, a check valve is arranged between the pipelines connected with the second two-way valve and the concentrated water conveying pipeline, and a check valve is arranged between the pipelines connected with the fourth two-way valve and the concentrated water conveying pipeline.
In order to further ensure the quality of the output pure water, a post-processing unit is also arranged, the fresh water output by the EDR unit is processed by the post-processing unit and then is discharged as the pure water, and the post-processing unit is a post-carbon rod or an ion exchange resin filtering unit.
In addition, the EDR water purification system is also provided with a flow regulating valve, and the flow regulating valve is arranged on a pipeline between the post-processing unit and the system pure water outlet. The user can adjust the flow of the pure water according to the requirement.
According to the EDR water purification system, four two-way electromagnetic valves are arranged behind the membrane stack of the EDR unit, and waterway distribution under different working conditions is realized through on-off combination of the valves. Under the working condition of flushing, the concentrated water conveying pipeline can be thoroughly closed, only fresh water is kept to flow out, and the waste water pipeline is maintained by utilizing the high dissolving capacity and the scouring capacity of the fresh water to scale, so that the risk of long-term operation of the system is reduced.
It should be noted that the structure of the present embodiment includes a flow rate adjusting valve, a heater, and the like, and those skilled in the art can set other necessary components as needed, and is not limited to the scope of the present embodiment.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.