A kind of water purifier counter-infiltration system backwashed
Technical field
The present invention relates to household water-treatment technology field, in particular to a kind of water purifier counter-infiltration system that can be backwashed.
Background technique
With China's expanding economy, the pollution of water resource is also increasingly severe, and the water quality of municipal tap water cannot expire
The demand of sufficient people, more and more people select purchase water purifier, to guarantee the safety of drinking water.
Widely used or reverse osmosis membrane technology in Domestic water purifying technology at present, household reverse osmosis water purifier are not working
When, concentrated water side salinity will be higher by 20-100 times or more compared to is produced from water side, and under osmotic pressure effect, salt can be seeped from through fenestra
Thoroughly to is produced from water side, cause to produce the raising of water salinity.In the work of water purifier next time, the salt of this partial penetration will lead to production
A certain stage (usually before 100-300 milliliter water) conductivity of water increases, according to statistics indicate that, anti-penetration water purifier stopping work
It is initial to be discharged TDS moment and be up to 150ppm after making 24 hours, TDS value 130ppm when higher than water inlet, connect first glass of user
Water is typically not capable of 90% salt rejection rate, there is higher calcium ions and magnesium ions instead, and scale formation can be also found when heating up water.
Therefore in view of the shortcomings of the prior art, provide a kind of water purifier counter-infiltration system that can be backwashed very it is necessary to.
Summary of the invention
The purpose of the present invention is to solve defects in the prior art, and it is reverse osmosis to provide a kind of water purifier that can be backwashed
System, it is ensured that the stabilization of the producing water water quality in reverse osmosis water purification machine.
To achieve the above object, technical scheme is as follows:
A kind of water purifier counter-infiltration system backwashed, is provided with reverse osmosis filter core, and the reverse osmosis filter core produces water side
It is communicated with pressurized tank.
In order to further realize the present invention, the reverse osmosis filter core produces water side and is provided with carbon-point, and the pressurized tank is set to
Between the production mouth of a river of reverse osmosis filter core and carbon-point.
In order to further realize the present invention, the reverse osmosis filter core raw water side is provided with water pump, and the reverse osmosis filter core is dense
Water side is provided with wastewater discharge pipe.
In order to further realize the present invention, the raw water mouth of the reverse osmosis filter core and the water outlet of water pump are connected, described anti-
The concentrated water spout of infiltration filter core is connect with wastewater discharge pipe.
In order to further realize the present invention, it is provided with water tank, the water inlet end of the water tank is dense with reverse osmosis filter core
Mouth of a river connection, the water outlet of the water tank and the water inlet end of water pump connect.
In order to further realize the present invention, first is provided between the concentrated water spout and wastewater discharge pipe of the reverse osmosis filter core
Two three-way electromagnetic valves are provided with second liang of three-way electromagnetic valve between the concentrated water spout and water tank of the reverse osmosis filter core.
In order to further realize the present invention, first liang of three-way electromagnetic valve is two three-way electromagnetic valve of diaphragm.
In order to further realize the present invention, be provided with controller, first liang of three-way electromagnetic valve and second liang of three-way electromagnetic valve with
Controller is electrically connected.
In order to further realize the present invention, first liang of three-way electromagnetic valve and second liang of three-way electromagnetic valve are normally open,
If water pump is opened, the controller controls second liang of three-way electromagnetic valve and closes;If water pump stops working, the controller control first
Two three-way electromagnetic valves are closed.
In order to further realize the present invention, first liang of three-way electromagnetic valve and second liang of three-way electromagnetic valve are normally off,
If water pump is opened, the controller controls first liang of three-way electromagnetic valve and opens;If water pump stops working, the controller control second
Two three-way electromagnetic valves are opened.
Beneficial effect
The present invention is full of air when pressurized tank original state by setting pressurized tank, in pump working, produces the pressure of water side
Power tank is full of pure water;When water pump stops working, system pressure is decreased to zero quickly, and produces in water lateral pressure tank pure water due to pressure
Power effect is flowed out through reverse osmosis membrane to concentrated water side, until pressurized tank pure water is completely exhausted out, pressure is reduced to zero, reverse osmosis at this time
Filter core concentrated water side is due to the cleaning of pure water, and salinity substantially reduces, up to suitable or slightly higher with production water side concentration, due to film two sides
Salinity is very low, and salt penetration phenomenon can be effectively prevented, and solves reverse osmosis water purification machine system and produces water side salinity when opening
Excessively high problem makes system be always ensured that stable producing water water quality.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the water purifier counter-infiltration system that one kind of the present invention can backwash;
Fig. 2 is the circuit connection diagram for the water purifier counter-infiltration system that one kind of the present invention can backwash.
Fig. 1 includes: into Fig. 2
Reverse osmosis filter core 1;
Pressurized tank 2;
Water tank 3;
Carbon-point 4;
Water pump 5;
Controller 6;
Wastewater discharge pipe 7;
First liang of three-way electromagnetic valve 8;
Second liang of three-way electromagnetic valve 9.
Specific embodiment
The present invention is further described in detail with reference to the accompanying drawing, these attached drawings are simplified schematic diagram, only
The basic structure that the invention is illustrated in a schematic way.
Embodiment 1
As Figure 1-Figure 2, the present invention provides a kind of water purifier counter-infiltration system that can be backwashed, and is provided with reverse osmosis diafiltration
Core 1, pressurized tank 2, water tank 3, carbon-point 4, water pump 5 and controller 6, in which:
Reverse osmosis filter core 1 is provided with a reverse osmosis membrane, and reverse osmosis membrane is that have made of a kind of simulation biological semi-permeable film
The artificial semi-permeable membrane of certain characteristic, specifically, reverse osmosis membrane is made of cellulose acetate or aromatic polyamides, the aperture of permeable membrane
Size is 0.0001~0.001 μm.
Reverse osmosis filter core 1 produces water side and is provided with pressurized tank 2 and carbon-point 4, pressurized tank 2 and carbon-point 4 with reverse osmosis filter core 1
Produce mouth of a river connection.
Reverse osmosis 1 raw water side of filter core is provided with water pump 5, and the water outlet of water tank 3 is connect with the water inlet end of water pump 5, reverse osmosis
1 concentrated water side of diafiltration core is provided with wastewater discharge pipe 7, and the concentrated water spout of reverse osmosis filter core 1 is connect with wastewater discharge pipe 7.
The water inlet end of water tank 3 is connect with the concentrated water spout of reverse osmosis filter core 1, the water outlet of water tank 3 and the water inlet of water pump 5
End connection, is provided with first liang of three-way electromagnetic valve 8, specifically, first between the concentrated water spout and wastewater discharge pipe 7 of reverse osmosis filter core 1
Two three-way electromagnetic valves 8 are two three-way electromagnetic valve of diaphragm, and the risk of first liang of 8 fouling of three-way electromagnetic valve can be effectively reduced, reverse osmosis filter core 1
Second liang of three-way electromagnetic valve 9 is provided between concentrated water spout and water tank 3.
First liang of three-way electromagnetic valve 8 and second liang of three-way electromagnetic valve 9 are electrically connected with controller 6, first liang of 8 He of three-way electromagnetic valve
Second liang of three-way electromagnetic valve 9 is normally open, if water pump 5 is opened, the controller 6 controls second liang of three-way electromagnetic valve 9 and closes;If
Water pump 5 stops working, and the controller 6 controls first liang of three-way electromagnetic valve 8 and closes.
The water capacity of pressurized tank 2 and water tank 3 is 200-1500 milliliters.
Model HH-N05S, HH-N20S, HH-N40S, HH-DA10D or MT8516 of controller 6, it should be noted that
Controller 9 is not the primary object of the application, can make as long as being able to achieve the controller of the function of control solenoid valve operating condition
For the controller in the present embodiment, the selection of controller model is the selection of those skilled in the art's routine, and details are not described herein.
For the present embodiment by being provided with pressurized tank, when power tank original state, is full of air, in pump working, produces water side
Pressurized tank is full of pure water;When water pump stops working, system pressure is decreased to zero quickly, and produce in water lateral pressure tank pure water due to
Pressure effect is flowed out through reverse osmosis membrane to concentrated water side, until pressurized tank pure water is completely exhausted out, pressure is reduced to zero, at this time reverse osmosis
Diafiltration core concentrated water side is due to the cleaning of pure water, and salinity substantially reduces, up to suitable or slightly higher with production water side concentration, due to film two
Side salinity is very low, and salt penetration phenomenon can be effectively prevented, and solves reverse osmosis water purification machine system and produces water side salt when opening
Divide excessively high problem, system is made to be always ensured that stable producing water water quality.
According to measurement, in no pressure tank, it is reverse osmosis stop working 24 hours after, the initial TDS that is discharged instantaneously is up to
150ppm (water inlet 130ppm), after pressurized tank, concentrated water side TDS is reduced to 20ppm hereinafter, reverse osmosis stop working 24 hours
Initially water outlet TDS is maintained at 30ppm or less afterwards.By being provided with water tank, when being backwashed using pressurized tank, water tank
It can be used for storing the flushing waste water for draining into reverse osmosis filter core concentrated water side, in pump working next time, the water in water tank can lead to
The water pump suction crossed enters reverse osmosis filter core, output pure water, to prevent train backlash from washing discharge of wastewater, improves water purifying apparatus
Effect.
Embodiment 2
The present invention provides a kind of water purifier counter-infiltration system that can be backwashed, other features are same as Example 1, different
It is that in the present embodiment, first liang of three-way electromagnetic valve 8 and second liang of three-way electromagnetic valve 9 are normally off, if water pump 5 is opened, controller
6 first liang of three-way electromagnetic valve 8 of control are opened;If water pump 5 stops working, controller 6 controls second liang of three-way electromagnetic valve 9 and opens.
Embodiment 3
The present invention provides a kind of water purification machine counter-infiltration system with desalter, other features are same as Example 1, no
With reverse osmosis filter core sets 1 and is equipped with two reverse osmosis membranes.
Compared with Example 1, the counter osmosis of reverse osmosis filter core 1 is more preferably.
The foregoing is merely better embodiments of the invention, and the invention is not limited to above embodiment, are implementing
The structural modification small there may be part in the process, if various changes or modifications of the invention are not departed from essence of the invention
Mind and range, and belong within the scope of claim and equivalent technologies of the invention, then the present invention is also intended to encompass these changes
And modification.