CN208218465U - Filtration system - Google Patents
Filtration system Download PDFInfo
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- CN208218465U CN208218465U CN201820166017.8U CN201820166017U CN208218465U CN 208218465 U CN208218465 U CN 208218465U CN 201820166017 U CN201820166017 U CN 201820166017U CN 208218465 U CN208218465 U CN 208218465U
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- filter unit
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Abstract
The embodiment of the present application discloses a kind of filtration system, including the first membrane filter unit, the second membrane filter unit, switching mechanism, the raw water inlet of first membrane filter unit and the raw water inlet of the second membrane filter unit can be arranged in parallel, the pure water outlet of first membrane filter unit and the pure water outlet of the second membrane filter unit can be arranged in parallel, the pure water outlet of first membrane filter unit can be connected to the raw water inlet of the second membrane filter unit, and switching mechanism is for controlling the first membrane filter unit and the second membrane filter unit.The embodiment of the present application has the advantage that using the above structure: 1, the pure water water that the filtration system generates under water low temperature condition can be improved;2, the filtration system can be reduced in the TDS value at booting initial stage;3, when being rinsed to the second membrane filter unit, waste water can not be generated, to improve the water effect of the filtration system;4, raw water or tap water can be rinsed the first membrane filter unit, to extend the service life of the first membrane filter unit.
Description
Technical field
This application involves water treatment field more particularly to a kind of filtration systems.
Background technique
Existing filtration system deposits some defects.For example, flow is smaller at low temperatures for existing filtration system.Again
For example, existing filtration system is higher in the TDS value of start-up phase.For another example the water effect of filtration system is lower.
Utility model content
In order to overcome the drawbacks described above of the prior art, the technical problem to be solved by the application is to provide a kind of filtering systems
System, can solve at least one of above-mentioned technical problem.
The embodiment of the present application also discloses a kind of filtration system, comprising: the first membrane filter unit, the second membrane filter unit with
And switching mechanism, wherein the raw water inlet of first membrane filter unit and the raw water inlet of the second membrane filter unit can be in parallel
Setting, the pure water outlet of first membrane filter unit and the pure water outlet of the second membrane filter unit can be arranged in parallel, and described the
The pure water outlet of one membrane filter unit can be connected to the raw water inlet of second membrane filter unit, and the switching mechanism is used for pair
First membrane filter unit and the second membrane filter unit are controlled.
Preferably, the switching mechanism is for making the filtration system have at least two working conditions, in the first work
When state, the switching mechanism is for making first membrane filter unit and second membrane filter unit parallel connection and in water processed
State, in the second working condition, the switching mechanism is for making the first membrane filter unit be in water state processed and described second
Membrane filter unit, which is in, stops water state processed, and first membrane filter unit and second membrane filter unit are connected in series.
Preferably, the switching mechanism is for making the filtration system have third working condition, in third working condition
When, the switching mechanism is in system with second membrane filter unit for being in an off state first membrane filter unit
Water state.
Preferably, the wastewater outlet of first membrane filter unit can connect with the raw water inlet of first membrane filter unit
It is logical.
Preferably, the wastewater outlet of second membrane filter unit can connect with the raw water inlet of first membrane filter unit
It is logical.
Preferably, including first runner, second flow channel, third flow channel, the switching mechanism include being arranged in first runner
On the first solenoid valve, the second solenoid valve that is arranged in second flow channel, one end of the first runner and the first film mistake
The raw water inlet connection of unit is filtered, one end of the second flow channel is connected to the raw water inlet of second membrane filter unit, institute
The other end for stating first runner is connected to the other end of the second flow channel, and one end of the third flow channel and the filtering of the first film are single
The pure water outlet connection of member, the other end of the third flow channel with positioned at the raw water inlet of second membrane filter unit and described
Second flow channel connection between second solenoid valve.
Preferably, the first check valve is provided in the third flow channel.
Preferably, comprising: the 4th runner and the control element being arranged on the 4th runner, the first film filtering are single
The wastewater outlet of member is provided with first throttling device, and the wastewater outlet of second membrane filter unit is provided with the second throttling dress
It sets, one end of the 4th runner connects with the outlet of the first throttling device and the outlet of the second throttling device respectively
It is logical;The other end of 4th runner can be connected to the raw water inlet of the first membrane filter unit.
Preferably, comprising: the filtration system includes temperature detecting unit, when the water that the temperature detecting unit detects
Water temperature be greater than or equal to preset temperature when, the switching mechanism makes the filtration system be in third working condition, when described
When the water temperature for the water that temperature detecting unit detects is less than preset temperature, the switching mechanism makes the filtration system be in first
Working condition.
Preferably, the filtration system include the 5th runner, the 5th runner respectively with first membrane filter unit
Raw water inlet be connected to the raw water inlet of second membrane filter unit, the filtration system include setting it is described 5th stream
Temperature detecting unit on road, when the temperature detecting unit detects that the water temperature of the water of the 5th runner is greater than or equal in advance
If when temperature, the switching mechanism makes the filtration system be in third working condition, when the temperature detecting unit detects
When the water temperature of the water of 5th runner is less than preset temperature, the switching mechanism makes the filtration system be in the first work shape
State.
Preferably, the temperature detecting unit closes on the raw water inlet setting of first membrane filter unit.
Preferably, the filtration system include the 5th runner, the 5th runner respectively with first membrane filter unit
Raw water inlet be connected on the 5th runner with the raw water inlet of second membrane filter unit and be provided with water pump, the described 4th
The other end of runner is connected to the 5th runner for being located at the water pump upstream.
Preferably, when the filtration system is in the first working condition or the third state, the water pump is with the first revolving speed
Value operation;When the filtration system is in the operation of the second working condition, the water pump is run with the second tachometer value, wherein institute
The first tachometer value is stated greater than the second tachometer value.
Preferably, including the prefilter unit being arranged on the 5th runner, the prefilter unit is located at institute
State the upstream of the other end connectivity part of the 5th runner and the 4th runner.
Preferably, the water yield ratio of first membrane filter unit and second membrane filter unit be 1:3 to 1:4 it
Between.
Preferably, first membrane filter unit and second membrane filter unit include reverse osmosis membrane or nanofiltration membrane.
Preferably, the filtration system has recorded by the water time processed to first membrane filter unit based on
When device, when the time value that the timer record arrives is greater than or equal to preset time, the switching mechanism makes filtering system
System is in the second working condition;When the time value that the timer record arrives is less than preset time, the switching mechanism makes institute
It states filtration system and is in the first working condition or third working condition.
Preferably, the filtration system have the 5th runner, the 5th runner respectively with first membrane filter unit
Raw water inlet be connected to the raw water inlet of second membrane filter unit, the filtration system include setting it is described 5th stream
Temperature detecting unit on road, when the time value that the timer record arrives is less than preset time and temperature detecting unit inspection
When measuring the water temperature of the water of the 5th runner more than or equal to preset temperature, the switching mechanism is in the filtration system
Third working condition, when the timer record to time value be less than preset time and the temperature detecting unit and detect institute
When stating the water temperature of the water of the 5th runner less than preset temperature, the switching mechanism makes the filtration system be in the first work shape
State.
Preferably, the switching mechanism is for making the filtration system have the 4th working condition, in the 4th working condition
When, the switching mechanism is in punching with first membrane filter unit for being in an off state second membrane filter unit
Wash state.
The embodiment of the present application has had the advantage that using the above structure:
1, the pure water water that the filtration system generates under water low temperature condition can be improved;
2, the filtration system can be reduced in the TDS value at booting initial stage;
3, when being rinsed to the second membrane filter unit, waste water can not be generated, to improve the water of the filtration system
Effect;
4, raw water or tap water can be rinsed the first membrane filter unit, to extend the longevity of the first membrane filter unit
Life.
Detailed description of the invention
Attached drawing described here is only used for task of explanation, and is not intended to limit model disclosed in the present application in any way
It encloses.In addition, shape and proportional sizes of each component in figure etc. are only schematical, it is used to help the understanding to the application, and
It is not the specific shape and proportional sizes for limiting each component of the application.Those skilled in the art, can under teachings of the present application
Implement the application to select various possible shapes and proportional sizes as the case may be.
Fig. 1 shows one of the embodiment of the present application filtration system.
Fig. 2 shows the filtration systems in Fig. 1 to be in the water route schematic diagram under the first working condition.
Fig. 3 shows the water route schematic diagram that the filtration system in Fig. 1 is under the second working condition.
Fig. 4 shows the water route schematic diagram that the filtration system in Fig. 1 is under third working condition.
Fig. 5 shows the schematic diagram of another filtration system in the embodiment of the present application.
Fig. 6 shows the schematic diagram of another filtration system in the embodiment of the present application.
The appended drawing reference of the figures above: 1, the first membrane filter unit;2, the second membrane filter unit;3, the first solenoid valve;4,
Second solenoid valve;5, third solenoid valve;6, the 4th solenoid valve;7, prefilter unit;8, temperature detecting unit;9, water pump;10,
Water check valve;11, first runner;12, second flow channel;13, third flow channel;14, the 4th runner;15, the 5th runner;16, the 6th stream
Road;21, the first check valve;22, second one-way valve;23, third check valve;24, the 4th check valve;30, tap;41, first
Throttling set;42, second throttling device.
Specific embodiment
In conjunction with the description of attached drawing and the application specific embodiment, the details of the application can be clearly understood.But
It is the specific embodiment of the application described herein, is only used for explaining the purpose of the application, and cannot understands in any way
At being limitation to the application.Under teachings of the present application, technical staff is contemplated that any possible change based on the application
Shape, these are regarded as belonging to scope of the present application.
This application discloses a kind of filtration systems, comprising: the first membrane filter unit 1, the second membrane filter unit 2 and switching
Mechanism, wherein the raw water inlet of the first membrane filter unit 1 and the raw water inlet of the second membrane filter unit 2 can be arranged in parallel, and first
The pure water outlet of membrane filter unit 1 and the pure water outlet of the second membrane filter unit 2 can be arranged in parallel, the first membrane filter unit 1
Pure water outlet can be connected to the raw water inlet of the second membrane filter unit 2, and switching mechanism is used for the first membrane filter unit 1 and second
Membrane filter unit 2 is controlled.
Switching mechanism can make filtration system have at least three working conditions, and in the first working condition, switching mechanism is used
In keeping the first membrane filter unit 1 and the second membrane filter unit 2 in parallel and in water state processed, in the second working condition, switching
For making, the first membrane filter unit 1 is in water state processed and the second membrane filter unit 2 is in stopping water state processed, and first for mechanism
Membrane filter unit 1 and the second membrane filter unit 2 are connected in series, and in third working condition, switching mechanism is for making the first film mistake
Filter unit 1, which is in an off state, is in water state processed with the second membrane filter unit 2.
By above structure, switching mechanism can make the first membrane filter unit 1 and the second membrane filter unit 2 be in it is in parallel and
Water state (i.e. the filtration system is in the first working condition) processed jointly, to make two film lists in the lower situation of water temperature
Member water jointly processed, and then improve the pure water flow of the filtration system.The switching mechanism can also make the second membrane filter unit 2 and
One membrane filter unit 1 is in series connection, and the second membrane filter unit 2 is in water state processed, and the first membrane filter unit 1, which is in, to stop
Only water state (i.e. the filtration system is in the second working condition) processed, the second membrane filter unit 2 can filter the first film at this time
Unit 1 is rinsed, so as to reduce the filtration system in the TDS value at booting initial stage.Switching mechanism can be such that the first film filters
Unit 1, which is in an off state, is in water state processed (i.e. the filtration system is in third working condition) with the second membrane filter unit 2,
To which the filtration system can be made as long as making the second membrane filter unit 2 be in water state processed in the higher situation of water temperature
Water yield meets the requirements.
Referring to Fig.1, shown in Fig. 2, Fig. 3, Fig. 4, the embodiment of the present application discloses a kind of filtration system, which includes
First membrane filter unit 1, the second membrane filter unit 2, first runner 11, second flow channel 12, third flow channel 13.Wherein, the first film
Filter element 1 and the second membrane filter unit 2 include reverse osmosis membrane, nanofiltration membrane, ultrafiltration membrane and microfiltration membranes etc..The one of first runner 11
End is connected to the raw water inlet of the first membrane filter unit 1, the raw water inlet of one end of second flow channel 12 and the second membrane filter unit 2
Connection.Switching mechanism includes the first solenoid valve 3 being arranged on first runner 11, the second electromagnetism being arranged in second flow channel 12
Valve 4.One end of third flow channel 13 is connected to the pure water outlet of the first membrane filter unit 1, the other end of third flow channel 13 be located at
Second flow channel 12 between the raw water inlet and second solenoid valve 4 of second membrane filter unit 2 is connected to.
The pure water outlet of first membrane filter unit 1 and the pure water outlet of the second membrane filter unit 2 can respectively with tap 30
Connection.In order to avoid water adverse current, being provided between the pure water outlet and tap 30 of the first membrane filter unit 1 can be from the first film
Third check valve 23 of the pure water outlet of filter element 1 to 30 direction one-way conduction of tap.In the pure of the second membrane filter unit 2
Being provided between water out and tap 30 can be from the pure water outlet of the second membrane filter unit 2 to 30 direction one-way conduction of tap
The 4th check valve 24.
Referring to shown in Fig. 2, when the first solenoid valve 3 and second solenoid valve 4 are opened simultaneously, which is in the first work
Make state, the first membrane filter unit 1 and 2 parallel connection of the second membrane filter unit and is in water state processed simultaneously.
Referring to shown in Fig. 3, when the first solenoid valve 3 is opened, and second solenoid valve 4 is closed, which is in the second work
Make state, the first membrane filter unit 1 is in water state processed.Second membrane filter unit 2 is in the state of water not processed.By the first film
What the filtering of filter element 1 generated crosses drainage can rush the membrane component in the second membrane filter unit 2 by third flow channel 13
It washes.Preferably, the water in third flow channel 13 generates adverse current in order to prevent, can be arranged in third flow channel 13 and be only capable of from the first film mistake
Filter unit 1 raw water inlet one-way conduction from pure water outlet to the second membrane filter unit 2 the first check valve 21.
Referring to shown in Fig. 4, when the first solenoid valve 3 is closed, and second solenoid valve 4 is opened, which is in third work
Make state, the first membrane filter unit 1 is in water state processed, and the second membrane filter unit 2, which is in, disconnects off position.
Specifically, filtration system can also include the 4th runner 14, first throttling device 41 and second throttling device 42.The
The wastewater outlet of the first membrane filter unit 1 is arranged in one throttling set 41.The setting of second throttling device 42 is filtered single in the second film
The wastewater outlet of member 2.One end of 4th runner 14 goes out with the outlet of first throttling device 41 and second throttling device 42 respectively
Mouth connection.The other end of 4th runner 14 can be connected to the raw water inlet of the first membrane filter unit 1.In order to avoid the 4th runner 14
Countercurrently, being provided on the 4th runner 14 can be from one end to the second one-way valve 22 of other end one-way conduction for interior water.In this reality
It applies in mode, first throttling device 41 and second throttling device 42 are combination valve.Referring to shown in Fig. 2, when the filtration system is in
When the first working condition, first throttling device 41 and second throttling device 42 are in waste water ratio state.
Referring to shown in Fig. 3, when the filtration system is in the second working condition, first throttling device 41 is in waste water ratio shape
State, second throttling device 42 are in flushing state.In this state, the waste water and right generated by the filtering of the first membrane filter unit 1
Waste water after the flushing of second membrane filter unit 2 can import the raw water inlet of the first membrane filter unit 1 again by fourth lane.
Thus, it is possible to which reducing by the second membrane filter unit 2 rinses required water, the water effect of the filtration system is improved.
In order to further increase water effect, in a second operative state, the original of raw water or tap water and the first membrane filter unit 1
Water inlet disconnects.In order to make the filtration system in the second working condition not to efflux wastewater, first throttling device 41 and second
The outlet of throttling set 42 is also provided with water check valve 10.In the case where filtration system is in the second working condition, at water check valve 10
In closed state.
Referring to shown in Fig. 4, when the filtration system is in third working condition, first throttling device 41 is in the shape that do not work
State, second throttling device 42 are in waste water ratio state.
In another optional embodiment, be provided on the 4th runner 14 solenoid valve that can be controlled or other
Control element, to no longer need that second one-way valve 22 is arranged.
Filtration system can also include the 5th runner 15, and raw water of the 5th runner 15 respectively with the first membrane filter unit 1 enters
Mouth is connected to the raw water inlet of the second membrane filter unit 2, and filtration system includes the temperature detection list being arranged on the 5th runner 15
Member 8, when temperature detecting unit 8 detects that the water temperature of the water of the 5th runner 15 is greater than or equal to preset temperature (for example, 15 is Celsius
Degree) when, switching mechanism makes filtration system be in third working condition, when temperature detecting unit 8 detects the water of the 5th runner 15
Water temperature be less than preset temperature when, switching mechanism makes filtration system be in the first working condition.Preferably, the temperature detection list
Member 8 closes on the raw water inlets setting of first membrane filter unit 1, thus the temperature for detecting temperature detecting unit 8 and the
The filtration temperature of one membrane filter unit 1 is same or similar, so as to more precisely control filtration system.
Of course, first film can also be arranged in the temperature detecting unit 8 in other optional embodiments
In the pure water runner of filter element 1, also it can be set in the waste water runner of first membrane filter unit 1.Alternatively, the temperature
Degree detection unit 8 can also be arranged in other runners of the filtration system.
Preferably, water pump 9 has frequency conversion function.When filtration system is in the first working condition or the third state, water pump 9
With the operation of the first tachometer value;When filtration system is in the operation of the second working condition, water pump 9 is with the operation of the second tachometer value, wherein
First tachometer value is greater than the second tachometer value.
Preferably, filtration system can also include the prefilter unit 7 being arranged on the 5th runner 15, prefilter list
Member 7 is located at the upstream of the 5th runner 15 and the other end connectivity part of the 4th runner 14.Prefilter unit 7 can wrap
Active carbon etc. is included, primary filter is carried out to water.
Preferably, the water yield ratio of the first membrane filter unit 1 and the second membrane filter unit 2 is 1:3 between 1:4.
Stop water state processed since under third working condition, the second membrane filter unit 2 is in.Accordingly, it is considered to arrive film mistake
Filter unit is constantly being reduced its vacant service life, therefore 2 (the i.e. production water of the second membrane filter unit 2 of the second membrane filter unit
Amount) it should not be too large.But, it is also contemplated that pure water made from the first membrane filter unit 1 is needed to second in a second operative state
Membrane filter unit 2 is rinsed.If the first membrane filter unit 1 is too small compared to the second membrane filter unit 2, it is necessary to for a long time
It is just able to achieve and the second membrane filter unit 2 is rinsed.Therefore, the water yield of the second membrane filter unit 2 is unsuitable too small.To sum up, second
The ratio of membrane filter unit 2 and the first membrane filter unit 1 needs moderate.It is studied repeatedly by the applicant and test obtains, the
The water yield ratio of one membrane filter unit 1 and the second membrane filter unit 2 is that 1:3 is preferable to effect between 1:4.
In one preferred embodiment, filtration system can also have for the water processed to the first membrane filter unit 1
The timer that time is recorded, when the time value that timer record arrives is greater than or equal to preset time (such as 30 minutes),
Switching mechanism makes filtration system be in the second working condition;When the time value that timer record arrives is less than preset time, switching
Mechanism makes filtration system be in the first working condition or third working condition.
When timer record to time value be less than the water that preset time and temperature detecting unit 8 detect the 5th runner 15
Water temperature be greater than or equal to preset temperature (for example, 14 degrees Celsius) when, switching mechanism makes filtration system be in third working condition,
When timer record to time value be less than preset time and temperature detecting unit 8 detect the 5th runner 15 water water temperature it is small
When preset temperature, switching mechanism makes filtration system be in the first working condition.
Preferably, switching mechanism is for making filtration system have the 4th working condition, in four working conditions, switching machine
Structure is in flushing state with the first membrane filter unit 1 for being in an off state the second membrane filter unit 2.As a result, raw water or
Tap water can be rinsed the first membrane filter unit 1, to extend the service life of the first membrane filter unit 1.
Referring to Figure 5, the embodiment of the present application discloses a kind of filtration system, which includes that the filtering of the first film is single
First 1, second membrane filter unit 2, the first runner 11 being connected to the raw water inlet of the first membrane filter unit 1 are filtered with the second film
It is the second flow channel 12 of the raw water inlet connection of unit 2, single with the pure water outlet of the first membrane filter unit 1 and the filtering of the first film respectively
The third flow channel 13 of the raw water inlet connection of member 1, is set the third flow channel 13 being connected to respectively with first runner 11 and second flow channel 12
Set prefilter unit 7, water pump 9 and switching mechanism in third flow channel 13.Switching mechanism includes being arranged in first runner
The first solenoid valve 3 on 11, the second solenoid valve 4 being arranged in second flow channel 12, the third being arranged in third flow channel 13 electricity
Magnet valve 5, be arranged in the first membrane filter unit 1 wastewater outlet first throttling device 41, the second membrane filter unit 2 is set
The second throttling device 42 of wastewater outlet.The pure water outlet of the pure water outlet of first membrane filter unit 1 and the second membrane filter unit 2
It can be connected to respectively with tap 30.In the present embodiment, first throttling device 41 and second throttling device 42 are combination
Valve.
When being less than preset temperature (for example, 16 degrees Celsius), which switches to the first working condition.Water pump at this time
9 is in the open state, and the first solenoid valve 3 and second solenoid valve 4 are opened, and third solenoid valve 5 is closed.First throttling device 41 and
Two throttling sets 42 are in throttle.First membrane filter unit 1 and the second membrane filter unit 2 are in parallel, and are in common
Water state processed.
When needing to be rinsed the second membrane filter unit 2 (for example, the water time processed of the second membrane filter unit 2 reaches
40 minutes), which switches to the second working condition.Water pump 9 is in the open state at this time, the first solenoid valve 3 and third
Solenoid valve 5 is opened, and second solenoid valve 4 is closed.First throttling device 41 is in throttle, and second throttling device 42, which is in, rinses
State.First membrane filter unit 1 and the series connection of the second membrane filter unit 2, by the filtered pure water of the first membrane filter unit 1 to the
Two membrane filter units 2 are rinsed.
When being greater than or equal to preset temperature (for example, 16 degrees Celsius), which switches to third work shape
State.Water pump 9 is in the open state at this time, and the first solenoid valve 3 and third solenoid valve 5 are closed, and second solenoid valve 4 is opened.First segment
Stream device 41 is in off position, and second throttling device 42 is in throttle.First membrane filter unit 1, which is in, disconnects shape
State.Second membrane filter unit 2 is in water state processed.
When needing to be rinsed the first membrane filter unit 1 (for example, the water time processed of the first membrane filter unit 1 reaches
60 minutes), which switches to the 4th working condition.Water pump 9 is in the open state at this time, and the first solenoid valve 3 is opened, the
Two solenoid valves 4 and the 4th solenoid valve 6 are closed.First throttling device 41 is in flushing state.First membrane filter unit 1, which is in, to be rinsed
State.Second membrane filter unit 2 is closed.Raw water or tap water are rinsed the first membrane filter unit 1 at this time.
Referring to shown in Fig. 6, the embodiment of the present application discloses a kind of filtration system, the area of the filtration system and last embodiment
It is not, further includes the 6th runner 16, one end of the 6th runner 16 is connected to the entrance of water pump 9, the other end of the 6th runner 16
The entrance of the wastewater outlet and second throttling device 42 single with the filtering of the second film is connected to respectively.Switching mechanism further includes setting the
The 4th solenoid valve 6 on six runners 16.When the filtration system is in the first working condition and third working condition, the 4th electromagnetism
Valve 6 is in the open state, passes through the 6th runner 16 by the effluent part that the filtering of the second membrane filter unit 2 generates and is back to water
Before pump 9, the waste water of the another part generated by the filtering of the second membrane filter unit 2 is discharged by second throttling device 42.?
When the filtration system is in the second working condition, the 4th solenoid valve 6 is in the open state, so that effluent part be made to flow back.Second
Membrane filter unit 2 rinses the waste water generated and can be discharged from second throttling device 42.In the present embodiment, first throttling device
41 and second throttling device 42 be combination valve.
In the above-described embodiments, controlled solenoid valve can be used to replace in check valve.In addition, throttling set can be by electricity
The combination valve of magnet valve and waste water ratio composition, is also possible to waste water ratio.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
Above-described embodiment is only the technical concepts and features for illustrating the application, and its object is to allow person skilled in the art
Scholar can understand present context and implement accordingly, and the protection scope of the application can not be limited with this.It is all according to the application
Equivalent change or modification made by Spirit Essence should all cover within the scope of protection of this application.
Claims (19)
1. a kind of filtration system characterized by comprising the first membrane filter unit, the second membrane filter unit and switching mechanism,
Wherein, the raw water inlet of first membrane filter unit and the raw water inlet of the second membrane filter unit can be arranged in parallel, and described
The pure water outlet of one membrane filter unit and the pure water outlet of the second membrane filter unit can be arranged in parallel, first membrane filter unit
Pure water outlet can be connected to the raw water inlet of second membrane filter unit, the switching mechanism is for the first film mistake
Filter unit and the second membrane filter unit are controlled.
2. filtration system according to claim 1, which is characterized in that the switching mechanism is for having the filtration system
There are at least two working conditions, in the first working condition, the switching mechanism is for making first membrane filter unit and institute
It states the parallel connection of the second membrane filter unit and is in water state processed, in the second working condition, the switching mechanism is for making the first film
Filter element is in water state processed and second membrane filter unit is in and stops water state processed, and first membrane filter unit
It is connected in series with second membrane filter unit.
3. filtration system according to claim 2, which is characterized in that the switching mechanism is for having the filtration system
There is third working condition, in third working condition, the switching mechanism is disconnected for being in first membrane filter unit
State and second membrane filter unit are in water state processed.
4. filtration system according to claim 1, which is characterized in that the wastewater outlet of first membrane filter unit can and
The raw water inlet of first membrane filter unit is connected to.
5. filtration system according to claim 1, which is characterized in that the wastewater outlet of second membrane filter unit can and
The raw water inlet of first membrane filter unit is connected to.
6. filtration system according to claim 1, which is characterized in that including first runner, second flow channel, third flow channel,
The switching mechanism includes the first solenoid valve being arranged on first runner, the second solenoid valve being arranged in second flow channel, institute
The one end for stating first runner is connected to the raw water inlet of first membrane filter unit, one end of the second flow channel and described the
The raw water inlet of two membrane filter units is connected to, and the other end of the first runner is connected to the other end of the second flow channel, institute
The one end for stating third flow channel is connected to the pure water outlet of the first membrane filter unit, the other end of the third flow channel be located at it is described
Second flow channel connection between the raw water inlet of second membrane filter unit and the second solenoid valve.
7. filtration system according to claim 6, which is characterized in that be provided with the first check valve in the third flow channel.
8. filtration system according to claim 6 characterized by comprising the 4th runner and setting are in the 4th stream
Control element on road, the wastewater outlet of first membrane filter unit are provided with first throttling device, the second film filtering
The wastewater outlet of unit is provided with second throttling device, and one end of the 4th runner goes out with the first throttling device respectively
The outlet of mouth and the second throttling device;The other end of 4th runner can enter with the raw water of the first membrane filter unit
Mouth connection.
9. filtration system according to claim 1, which is characterized in that the filtration system includes temperature detecting unit, when
When the water temperature for the water that the temperature detecting unit detects is greater than or equal to preset temperature, the switching mechanism makes the filtering system
System is in third working condition, when the water temperature for the water that the temperature detecting unit detects is less than preset temperature, the switching
Mechanism makes the filtration system be in the first working condition.
10. filtration system according to claim 3, which is characterized in that the filtration system includes the 5th runner, and described the
Five runners are connected to the raw water inlet of the raw water inlet of first membrane filter unit and second membrane filter unit respectively, institute
Stating filtration system includes the temperature detecting unit being arranged on the 5th runner, when the temperature detecting unit detect it is described
When the water temperature of the water of 5th runner is greater than or equal to preset temperature, the switching mechanism makes the filtration system be in third work
State, when the temperature detecting unit detects the water temperature of the water of the 5th runner less than preset temperature, the switching machine
Structure makes the filtration system be in the first working condition.
11. filtration system according to claim 10, which is characterized in that the temperature detecting unit closes on first film
The raw water inlet of filter element is arranged.
12. filtration system according to claim 8, which is characterized in that the filtration system includes the 5th runner, and described the
Five runners are connected to the raw water inlet of the raw water inlet of first membrane filter unit and second membrane filter unit respectively, institute
It states and is provided with water pump on the 5th runner, the other end of the 4th runner connects with the 5th runner for being located at the water pump upstream
It is logical.
13. filtration system according to claim 12, which is characterized in that when the filtration system is in the first working condition
Or when third working condition, the water pump is run with the first tachometer value;When the filtration system is in the operation of the second working condition
When, the water pump is run with the second tachometer value, wherein first tachometer value is greater than the second tachometer value.
14. filtration system according to claim 12, which is characterized in that preposition on the 5th runner including being arranged in
Filter element, the prefilter unit are located at the upstream of the other end connectivity part of the 5th runner and the 4th runner.
15. filtration system according to claim 1, which is characterized in that first membrane filter unit and second film
The water yield ratio of filter element is 1:3 between 1:4.
16. filtration system according to claim 1, which is characterized in that first membrane filter unit and second film
Filter element includes reverse osmosis membrane or nanofiltration membrane.
17. filtration system according to claim 3, which is characterized in that the filtration system has for described first
The timer that the water time processed of membrane filter unit is recorded is preset when the time value that the timer record arrives is greater than or equal to
When the time, the switching mechanism makes the filtration system be in the second working condition;When the time value that the timer record arrives
When less than preset time, the switching mechanism makes the filtration system be in the first working condition or third working condition.
18. filtration system according to claim 17, which is characterized in that the filtration system has the 5th runner, described
5th runner is connected to the raw water inlet of the raw water inlet of first membrane filter unit and second membrane filter unit respectively,
The filtration system includes the temperature detecting unit being arranged on the 5th runner, when the time value that the timer record arrives
Less than preset time and the temperature detecting unit detects that the water temperature of the water of the 5th runner is greater than or equal to preset temperature
When, the switching mechanism makes the filtration system be in third working condition, when the timer record to time value be less than
When preset time and the temperature detecting unit detect that the water temperature of the water of the 5th runner is less than preset temperature, the switching
Mechanism makes the filtration system be in the first working condition.
19. filtration system according to claim 1, which is characterized in that the switching mechanism is for making the filtration system
With the 4th working condition, in four working conditions, the switching mechanism is for making second membrane filter unit be in disconnected
Open state and first membrane filter unit are in flushing state.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113863436A (en) * | 2021-11-10 | 2021-12-31 | 王巨建 | No negative pressure water supply equipment based on wisdom water utilities |
CN113952844A (en) * | 2021-11-18 | 2022-01-21 | 浙江美亚环境工程有限公司 | Membrane switching device for pure water preparation system |
-
2018
- 2018-01-31 CN CN201820166017.8U patent/CN208218465U/en active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113863436A (en) * | 2021-11-10 | 2021-12-31 | 王巨建 | No negative pressure water supply equipment based on wisdom water utilities |
CN113952844A (en) * | 2021-11-18 | 2022-01-21 | 浙江美亚环境工程有限公司 | Membrane switching device for pure water preparation system |
CN113952844B (en) * | 2021-11-18 | 2024-02-13 | 浙江美亚环境工程有限公司 | Membrane switching device for pure water preparation system |
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