CN208372620U - A kind of preposition preprocessor back flush system and the water purifier comprising the system - Google Patents
A kind of preposition preprocessor back flush system and the water purifier comprising the system Download PDFInfo
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- CN208372620U CN208372620U CN201820823989.XU CN201820823989U CN208372620U CN 208372620 U CN208372620 U CN 208372620U CN 201820823989 U CN201820823989 U CN 201820823989U CN 208372620 U CN208372620 U CN 208372620U
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Abstract
The utility model discloses a kind of preposition preprocessor back flush system and include the water purifier of the system, back flush system includes water inlet circuit, water receiver, water storage circuit, first draining circuit, second draining circuit and waste water circuit, the water inlet end in water inlet circuit is connected to raw water mouth, the water outlet in water inlet circuit is connected to the water inlet end of preposition preprocessor, the water inlet end of water receiver is connected to through water storage circuit with the waste water end of filter, the first draining circuit of water outlet of water receiver is connected to the water outlet of preposition preprocessor, the water inlet end of second draining circuit is connected to the water inlet end of preposition preprocessor, the water outlet of second draining circuit is connected to the waste water mouth of water purifier, the water inlet end in waste water circuit is connected to the waste water end of filter, the water outlet in waste water circuit is connected to the waste water mouth of water purifier.The utility model stores waste water in water processed, carries out back flush to preposition preprocessor using waste water when stopping water processed, and not will increase water consumption, use cost is cheap.
Description
Technical field
The utility model relates to water purifier technical field, more particularly to a kind of preposition preprocessor back flush system and
Water purifier comprising the system.
Background technique
The preposition preprocessor of water purifier is used to intercept and adsorb the impurity in water, therefore the impurity on preposition preprocessor
Can be cumulative, thus the filter core of frequent clean or the preposition preprocessor of replacement is needed, this is also that current water purifier is used and tieed up
Protect one of the main reason for cost is high.Practical maintenance statistics, amateur cleaning or replacement front filter element are also to cause only
One of the main reason for hydrophone multiple malfunctions.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of preposition preprocessor back flush system
System and the water purifier comprising the system can carry out back flush to preposition preprocessor, overcome the various disadvantages manually cleaned, prolong
The service life of long preposition preprocessor, reduces the failure rate of water purifier.
The purpose of this utility model is achieved through the following technical solutions: a kind of preposition preprocessor back flush system
System, the water purification circuit communication of the back flush system and water purifier, the water purification circuit includes the preposition pre- place being sequentially connected to
Reason device, booster pump and filter, the water inlet end of the preposition preprocessor are connected to the raw water mouth of water purifier, the filter
Pure water end is connected to the pure water mouth of water purifier, and the waste water end of the filter is connected to the waste water mouth of water purifier, the reverse punching
Washing system includes water inlet circuit, water receiver, water storage circuit, the first draining circuit, the second draining circuit and waste water circuit, it is described into
The water inlet end of water loop is connected to raw water mouth, and the water outlet in the water inlet circuit is connected to the water inlet end of preposition preprocessor, institute
The water inlet end for stating water receiver is connected to through water storage circuit with the waste water end of filter, and the water outlet first of the water receiver drains back
Road is connected to the water outlet of preposition preprocessor, and the water inlet end of second draining circuit and the water inlet end of preposition preprocessor connect
Logical, the water outlet of second draining circuit is connected to the waste water mouth of water purifier, the water inlet end and filter in the waste water circuit
Waste water end connection, the water outlet in the waste water circuit is connected to the waste water mouth of water purifier.
Preferably, the water inlet circuit includes the first solenoid valve, and the water inlet end of first solenoid valve is connected to raw water mouth,
The water outlet of first solenoid valve is connected to the water inlet end of preposition preprocessor.
Preferably, the water storage circuit includes the first flow-limiting valve, the water inlet end of first flow-limiting valve and giving up for filter
Water end (W.E.) connection, the water outlet of first flow-limiting valve is connected to the water inlet end of water receiver.
Preferably, first draining circuit includes the first non-return valve, the water inlet end and water receiver of first non-return valve
Water outlet connection, the water outlet of first non-return valve is connected to the water outlet of preposition preprocessor.
Preferably, second draining circuit includes second solenoid valve, the water inlet end of the second solenoid valve with it is preposition pre-
The water inlet end of processor is connected to, and the water outlet of the second solenoid valve is connected to the waste water mouth of water purifier.
Preferably, the waste water circuit includes concatenated second flow-limiting valve of random order and third solenoid valve.
Preferably, the back flush system further includes third draining circuit, the water inlet end point of the third draining circuit
Be not connected to the water outlet at the waste water end of filter and the first draining circuit, the water outlet of the third draining circuit with it is preposition pre-
The water outlet of processor is connected to.
Preferably, the third draining circuit includes concatenated second non-return valve of random order and the 4th solenoid valve.
A kind of water purifier includes above-mentioned preposition preprocessor back flush system.
The beneficial effects of the utility model are:
(1) the back flush system in the utility model stores waste water in water processed, utilizes storage when stopping water processed
Waste water carries out back flush to preposition preprocessor, eliminates the impurity etc. that the strainer etc. of preposition preprocessor adheres to above, thus
Extend the service life of preposition preprocessor；Simultaneously as carrying out back flush using waste water, water consumption not will increase, use
It is low in cost；
(2) water inlet end of third draining circuit is connected to the waste water end of filter in the utility model, so as to utilize
Remaining concentrated water carries out back flush to preposition preprocessor in filter；
(3) water storage circuit is constituted using the first flow-limiting valve, can be limited the speed that waste water enters in water receiver, be prevented from being switched on
When to filter work normally influence；
(4) water purifier in the utility model is provided with back flush system, reduces the use cost of water purifier.
Detailed description of the invention
Fig. 1 is the structural block diagram of the first embodiment of back flush system in the utility model；
Fig. 2 is the structural block diagram of second of embodiment of back flush system in the utility model；
Fig. 3 is the structural block diagram of the third embodiment of back flush system in the utility model；
Fig. 4 is the structural block diagram of the 4th kind of embodiment of back flush system in the utility model；
Fig. 5 is the structural block diagram of the 5th kind of embodiment of back flush system in the utility model；
In figure, 1-preposition preprocessor, 2-booster pumps, 3-filters, 4-raw water mouths, 5-pure water mouths, 6-waste water
Mouthful, 7-water inlet circuits, 8-water receivers, 9-water storage circuits, the 10-the first draining circuit, the 11-the second draining circuit, 12-is useless
Water loop, 13-third draining circuits, 14-circulation loops, the 15-the first solenoid valve, the 16-the first flow-limiting valve, 17-the first is inverse
Only valve, 18-second solenoid valves, the 19-the second flow-limiting valve, 20-third solenoid valves, the 21-the second non-return valve, the 22-the four electromagnetism
Valve, 23-third non-return valves, the 24-the five solenoid valve, 25-third flow-limiting valves.
Specific embodiment
Below in conjunction with embodiment, the technical solution of the utility model is clearly and completely described, it is clear that retouched
The embodiment stated is only the utility model a part of the embodiment, instead of all the embodiments.Based in the utility model
Embodiment, those skilled in the art's every other embodiment obtained under the premise of not making the creative labor, all belongs to
In the range of the utility model protection.
Refering to fig. 1-5, a kind of preposition preprocessor back flush system is present embodiments provided and comprising the net of the system
Hydrophone:
Embodiment one
As shown in Figure 1, a kind of preposition preprocessor back flush system, the water purification of the back flush system and water purifier
Circuit communication, the water purification circuit includes the preposition preprocessor 1, booster pump 2 and filter 3 being sequentially connected to, described preposition pre-
The water inlet end of processor 1 is connected to the raw water mouth 4 of water purifier, and the pure water end of the filter 3 and the pure water mouth 5 of water purifier connect
Logical, the waste water end of the filter 3 is connected to the waste water mouth 6 of water purifier, and the back flush system includes water inlet circuit, 7 storages
Hydrophone 8, water storage circuit 9, the first draining circuit 10, the second draining circuit 11 and waste water circuit 12, the water inlet in the water inlet circuit 7
End is connected to raw water mouth 4, and the water outlet in the water inlet circuit 7 is connected to the water inlet end of preposition preprocessor 1, the water receiver 8
Water inlet end be connected to through water storage circuit 9 with the waste water end of filter 3, the first draining circuit of water outlet 10 of the water receiver 8
It is connected to the water outlet of preposition preprocessor 1, the water inlet end of the water inlet end of second draining circuit 11 and preposition preprocessor 1
Connection, the water outlet of second draining circuit 11 be connected to the waste water mouth 6 of water purifier, the water inlet end in the waste water circuit 12 and
The waste water end of filter 3 is connected to, and the water outlet in the waste water circuit 12 is connected to the waste water mouth 6 of water purifier.
The working principle of the present embodiment are as follows: when water processed, water inlet circuit 7, water storage circuit 9 are connected with waste water circuit 12, and first
Draining circuit 10 and the second draining circuit 11 cut-off, raw water through raw water mouth 4 followed by water inlet circuit 7, preposition preprocessor 1,
Booster pump 2 and filter 3, the pure water come out in filter 3 are flowed out through pure water mouth 5, the waste water a part warp come out in filter 3
9 inflow water collector 8 of water storage circuit, a part enter waste water mouth 6 through waste water circuit 12 and flow out.When back flush, water inlet circuit 7,
Water storage circuit 9 and waste water circuit 12 are ended, and the first draining circuit 10 is connected with the second draining circuit 11, and raw water stops water inlet, by
Hydraulic pressure in water receiver 8 is higher, the waste water in water receiver 8 flow through first row water loop 10 preposition preprocessor 1 is carried out it is inverse
To flushing, the waste water after back flush enters waste water mouth 6 through the second draining circuit 11 and is discharged.Due to being produced using filter 3
Raw waste water carries out back flush to preposition preprocessor 1, not will increase additional water consumption, not will increase use cost.
Preferably, the water inlet circuit 7 includes the first solenoid valve 15, the water inlet end and raw water mouth of first solenoid valve 15
4 connections, the water outlet of first solenoid valve 15 is connected to the water inlet end of preposition preprocessor 1.The water storage circuit 9 includes the
One flow-limiting valve 16, the water inlet end of first flow-limiting valve 16 are connected to the waste water end of filter 3, and first flow-limiting valve 16 goes out
Water end (W.E.) is connected to the water inlet end of water receiver 8.First draining circuit 10 includes the first non-return valve 17, first non-return valve 17
Water inlet end be connected to the water outlet of water receiver 8, the water outlet of the water outlet of first non-return valve 17 and preposition preprocessor 1
Connection.Second draining circuit 11 includes second solenoid valve 18, the water inlet end of the second solenoid valve 18 and preposition pretreatment
The water inlet end of device 1 is connected to, and the water outlet of the second solenoid valve 18 is connected to the waste water mouth 6 of water purifier.The waste water circuit 12
Water inlet end including 20: the second flow-limiting valve 19 of concatenated second flow-limiting valve 19 of random order and third solenoid valve is as waste water circuit
The water outlet of 12 water inlet end, the second flow-limiting valve 19 is connected to the water inlet end of third solenoid valve 20, the third solenoid valve 20
Water outlet of the water outlet as waste water circuit 12；Alternatively, water inlet end of the water inlet end of third solenoid valve 20 as waste water circuit 12,
The water outlet of third solenoid valve 20 is connected to the water inlet end of the second flow-limiting valve 19, and the water outlet of the second flow-limiting valve 19 is returned as waste water
The water outlet on road 12.
Preposition preprocessor 1 in the present embodiment can be made of multi-stage filter, can also be only made of level-one filter core；Before
Set the filter core in preprocessor 1 can be it is any one in PP cotton filter element, granular activated carbon filter core and extruded activated carbon filter core etc.
Kind is a variety of.Filter 3 in the present embodiment can be RO membrane filter (reverse osmosis membrane), is also possible to NF membrane filter and (receives
Filter membrane).
Embodiment two
As shown in Fig. 2, the technical solution of the present embodiment is on the basis of the technical solution of embodiment one, it further include third
Draining circuit 13, the third draining circuit 13 are serially connected between the first draining circuit 10 and preposition preprocessor 1, the third
The water inlet end of draining circuit 13 is connected to the waste water end of the water outlet of the first draining circuit 10 and filter 3 respectively, the third
The water outlet of draining circuit 13 is connected to the water outlet of preposition preprocessor 1.
The working principle of the present embodiment are as follows: when water processed, water inlet circuit 7, water storage circuit 9 are connected with waste water circuit 12, and first
Draining circuit 10, the second draining circuit 11 and third draining circuit 13 end, raw water through raw water mouth 4 followed by water inlet circuit 7,
Preposition preprocessor 1, booster pump 2 and filter 3, the pure water come out in filter 3 are flowed out through pure water mouth 5, are come out in filter 3
Waste water a part through 9 inflow water collector 8 of water storage circuit, a part through waste water circuit 12 enter waste water mouth 6 flow out.Back flush
When, water inlet circuit 7, water storage circuit 9 and waste water circuit 12 are ended, the first draining circuit 10, the second draining circuit 11 and third row
Water loop 13 is connected, and raw water stops water inlet, and since the hydraulic pressure in water receiver 8 is higher, the waste water in water receiver 8 is followed by first
Draining circuit 10 and third draining circuit 13 carry out back flush, while remaining concentrated water in filter 3 to preposition preprocessor 1
It flows through third draining circuit 13 and back flush is carried out to preposition preprocessor 1, the waste water after back flush is through the second draining circuit
11, which enter waste water mouth 6, is discharged.Due in the waste water and filter 3 that are generated using filter 3 remaining concentrated water to preposition pre-
Processor 1 carries out back flush, not will increase additional water consumption, not will increase use cost.
Preferably, the third draining circuit 13 includes concatenated second non-return valve 21 of random order and the 4th solenoid valve
Water inlet end of the water inlet end of 22: the second non-return valves 21 as third draining circuit 13, the water outlet and the 4th of the second non-return valve 21
The water inlet end of solenoid valve 22 is connected to, water outlet of the water outlet of the 4th solenoid valve 22 as third draining circuit 13；Alternatively, the 4th
Water inlet end of the water inlet end of solenoid valve 22 as third draining circuit 13, the water outlet of the 4th solenoid valve 22 and the second non-return valve 21
Water inlet end connection, water outlet of the water outlet of the second non-return valve 21 as third draining circuit 13.
Embodiment three
As shown in figure 3, the technical solution of the present embodiment is on the basis of the technical solution of embodiment one, it further include circulation
Circuit 14, the water inlet end of the circulation loop 14 are connected to the waste water end of filter 3, the water outlet of the circulation loop 14 and increasing
The water inlet end of press pump 2 is connected to.
The working principle of the present embodiment are as follows: when water processed, water inlet circuit 7 is connected with water storage circuit 9, waste water circuit 12 and circulation
Circuit 14 is alternately connected, and the first draining circuit 10 and the cut-off of the second draining circuit 11, raw water are intake back through raw water mouth 4
Road 7, preposition preprocessor 1, booster pump 2 and filter 3, the pure water come out in filter 3 are flowed out through pure water mouth 5, in filter 3
For waste water a part out through 9 inflow water collector 8 of water storage circuit, what is come out in filter 3 when circulation loop 14 is connected is another
Effluent part is again introduced into booster pump 2 through circulation loop 14, filters again subsequently into filter 3, connects in waste water circuit 12
When filter 3 in come out another part waste water through waste water circuit 12 enter waste water mouth 6 flow out.When back flush, intake circuit
7, water storage circuit 9, circulation loop 14 and waste water circuit 12 are ended, and the first draining circuit 10 is connected with the second draining circuit 11, former
Water stops water inlet, and since the hydraulic pressure in water receiver 8 is higher, the waste water in water receiver 8 is followed by the first draining circuit 10 to preceding
It sets preprocessor 1 and carries out back flush, the waste water after back flush enters waste water mouth 6 through the second draining circuit 11 and is discharged.Due to
The presence of circulation loop 14 can make 3 waste water of filter bring out the effluent part come through circulation loop 14 and booster pump 2 again
It is filtered into filter 3, the water yield of pure water when improving identical raw water injection rate；Further, since using filtering
Device 3 generate waste water to preposition preprocessor 1 carry out back flush, not will increase additional water consumption, not will increase use at
This.
Preferably, the signal end of waste water circuit 12 and circulation loop 14 is connect with the control panel of water purifier.
Preferably, the circulation loop 14 includes the concatenated third non-return valve 23 of random order, the 5th solenoid valve 24 and the
Three flow-limiting valves 25: according to third flow-limiting valve 25, the sequential series of third non-return valve 23 and the 5th solenoid valve 24；Alternatively, according to
The sequential series of three flow-limiting valves 25, the 5th solenoid valve 24 and third non-return valve 23；Alternatively, being limited according to third non-return valve 23, third
Flow the sequential series of valve 25 and the 5th solenoid valve 24；Alternatively, according to third non-return valve 23, the 5th solenoid valve 24 and third flow-limiting valve
25 sequential series；Alternatively, according to the 5th solenoid valve 24, the sequential series of third flow-limiting valve 25 and third non-return valve 23；Alternatively,
According to the 5th solenoid valve 24, the sequential series of third non-return valve 23 and third flow-limiting valve 25.
Preferably, the signal end of third solenoid valve 20 and the 5th solenoid valve 24 is connect with the control panel of water purifier.
Example IV
As shown in figure 4, the technical solution in the present embodiment is on the basis of the technical solution of embodiment two, it further include following
Loop back path 14, the water inlet end of the circulation loop 14 are connected to the waste water end of filter 3, the water outlet of the circulation loop 14 with
The water inlet end of booster pump 2 is connected to.
The working principle of the present embodiment are as follows: when water processed, water inlet circuit 7, water storage circuit 9 are connected with waste water circuit 12, and first
Draining circuit 10, the second draining circuit 11 and third draining circuit 13 end, raw water through raw water mouth 4 followed by water inlet circuit 7,
Preposition preprocessor 1, booster pump 2 and filter 3, the pure water come out in filter 3 are flowed out through pure water mouth 5, are come out in filter 3
Waste water a part through 9 inflow water collector 8 of water storage circuit, another part for being come out in filter 3 when circulation loop 14 is connected
Waste water is again introduced into booster pump 2 through circulation loop 14, filters again subsequently into filter 3, the mistake when waste water circuit 12 is connected
Another part waste water come out in filter 3 enters waste water mouth 6 through waste water circuit 12 and flows out.When back flush, water inlet circuit 7, storage
Water loop 9 and waste water circuit 12 are ended, and the first draining circuit 10, the second draining circuit 11 are connected with third draining circuit 13, former
Water stops water inlet, and since the hydraulic pressure in water receiver 8 is higher, waste water in water receiver 8 is followed by the first draining circuit 10 and the
Three draining circuits 13 carry out back flush to preposition preprocessor 1, while remaining concentrated water flows through third and drains back in filter 3
Road 13 carries out back flush to preposition preprocessor 1, and the waste water after back flush enters 6 row of waste water mouth through the second draining circuit 11
Out.Due to the presence of circulation loop 14,3 waste water of filter can be made to bring out the effluent part come through circulation loop 14 and pressurization
Pump 2 is again introduced into filter 3 and is filtered, the water yield of pure water when improving identical raw water injection rate；Further, since use
It is that remaining concentrated water carries out back flush to preposition preprocessor 1 in the waste water and filter 3 of the generation of filter 3, does not will increase
Additional water consumption, not will increase use cost.
Preferably, the circulation loop 14 includes the concatenated third non-return valve 23 of random order, the 5th solenoid valve 24 and the
Three flow-limiting valves 25: according to third flow-limiting valve 25, the sequential series of third non-return valve 23 and the 5th solenoid valve 24；Alternatively, according to
The sequential series of three flow-limiting valves 25, the 5th solenoid valve 24 and third non-return valve 23；Alternatively, being limited according to third non-return valve 23, third
Flow the sequential series of valve 25 and the 5th solenoid valve 24；Alternatively, according to third non-return valve 23, the 5th solenoid valve 24 and third flow-limiting valve
25 sequential series；Alternatively, according to the 5th solenoid valve 24, the sequential series of third flow-limiting valve 25 and third non-return valve 23；Alternatively,
According to the 5th solenoid valve 24, the sequential series of third non-return valve 23 and third flow-limiting valve 25.
Preferably, the signal end of third solenoid valve 20 and the 5th solenoid valve 24 is connect with the control panel of water purifier.
Embodiment five
As shown in figure 5, a kind of preposition preprocessor back flush system, the water purification of the back flush system and water purifier
Circuit communication, the water purification circuit include the preposition preprocessor 1, booster pump 2 and filter 3 being sequentially connected to, preposition pretreatment
The water inlet end of device 1 is connected to the raw water mouth 4 of water purifier.The back flush system includes water inlet circuit 7, water receiver 8, water storage time
Road 9, the first draining circuit 10, the second draining circuit 11, third draining circuit 13, circulation loop 14 and waste water circuit 12, it is described
Water inlet circuit 7 includes the first solenoid valve 15, and the water storage circuit 9 includes the first flow-limiting valve 16；First draining circuit 10 wraps
Include the first non-return valve 17；Second draining circuit 11 includes second solenoid valve 18；The third draining circuit 13 includes the 4th
Solenoid valve 22 and the second non-return valve 21；The circulation loop 14 includes third flow-limiting valve 25, the 5th solenoid valve 24 and third check
Valve 23, the waste water circuit 12 include the second flow-limiting valve 19 and third solenoid valve 20.The water inlet end of first solenoid valve 15 with
Raw water mouth 4 is connected to, and the water outlet of first solenoid valve 15 is connected to the water inlet end of preposition preprocessor 1, the water receiver 8
Water inlet end is connected to through the first flow-limiting valve 16 with the waste water end of filter 3, the first non-return valve of water outlet 17 of the water receiver 8 with
The water inlet end of 4th solenoid valve 22 is connected to, and the water inlet end of the 4th solenoid valve 22 is also connected to the waste water end of filter 3, described
The second non-return valve of water outlet 21 of 4th solenoid valve 22 is connected to the water outlet of preposition preprocessor 1, the second solenoid valve
18 water inlet end is connected to the water inlet end of preposition preprocessor 1, the water outlet of the second solenoid valve 18 and the waste water of water purifier
Mouth 6 is connected to, and the water inlet end of the third flow-limiting valve 25 is connected to the waste water end of filter 3, the water outlet of the third flow-limiting valve 25
End is connected to through the 5th solenoid valve 24 with the water inlet end of third non-return valve 23, the water outlet of the third non-return valve 23 and booster pump 2
Water inlet end connection, the water inlet end of second flow-limiting valve 19 is connected to the waste water end of filter 3, second flow-limiting valve 19
Water outlet is connected to through third solenoid valve 20 with the waste water mouth 6 of water purifier, the signal end of third solenoid valve 20 and the 5th solenoid valve 24
It is connect with the control panel of water purifier.
The working principle of the present embodiment are as follows: when water processed, the first non-return valve 17, second solenoid valve 18 and the 4th solenoid valve 22 are disconnected
It opens, the first solenoid valve 15 is connected with the first flow-limiting valve 16, and third solenoid valve 20 alternately connects (a connection with the 5th solenoid valve 24
Then another is disconnected), raw water is through raw water mouth 4 followed by the first solenoid valve 15, preposition preprocessor 1, booster pump 2 and filter
3, the pure water come out in filter 3 is flowed out through pure water mouth 5, and the waste water a part come out in filter 3 is flowed through the first flow-limiting valve 16
Enter water receiver 8, the 5th solenoid valve 24 connect when filter 3 in come out another part waste water successively through third flow-limiting valve 25,
5th solenoid valve 24 and third non-return valve 23 are again introduced into booster pump 2, filter again subsequently into filter 3, in third electromagnetism
Another part waste water come out in filter 3 when valve 20 is connected successively enters waste water through the second flow-limiting valve 19 and third solenoid valve 20
Mouth 6 flows out.When back flush, the first solenoid valve 15, third solenoid valve 20 and the 5th solenoid valve 24 are disconnected, 18 He of second solenoid valve
4th solenoid valve 22 is connected, and raw water stops water inlet, since the hydraulic pressure in water receiver 8 is higher, waste water in water receiver 8 followed by
First non-return valve 17, the 4th solenoid valve 22 and the second non-return valve 21 carry out back flush, while filter to preposition preprocessor 1
Remaining concentrated water carries out back flush to preposition preprocessor 1 followed by the 4th solenoid valve 22 and the second non-return valve 21 in 3, inverse
Enter waste water mouth 6 through second solenoid valve 18 to the waste water after flushing to be discharged.
When water processed, due to the presence of the second flow-limiting valve 19 and third flow-limiting valve 25, in third solenoid valve 20 and the 5th electromagnetism
When valve 24 is alternately connected, it is ensured that the pressure for carrying out discharge of wastewater front and back filter 4 is stablized, so that filter 4 is useless in discharge
Without re-establishing pressure after water, to improve the water purification efficiency of filter 4；In addition, by adjusting 20 He of third solenoid valve
5th solenoid valve 24 connect time than adjustable water purifier waste water ratio, to meet the water purification demand of different quality.The
The waste water that one 16 pairs of flow-limiting valve enters water receiver 8 carries out current limliting, can limit the speed that waste water enters water receiver 8, prevent from being switched on
When influence filter 3 normal work.
Preferably, the second solenoid valve 18, third solenoid valve 20 and the 4th solenoid valve 22 are normally open solenoid valve, described the
One solenoid valve 15 and the 5th solenoid valve 24 are normally closed solenoid valve.
Embodiment six
A kind of water purifier includes above-mentioned preposition preprocessor back flush system.
The above is only the preferred embodiment of the utility model, it should be understood that the utility model is not limited to herein
Disclosed form, should not be regarded as an exclusion of other examples, and can be used for other combinations, modifications, and environments, and
Can be in contemplated scope described herein, modifications can be made through the above teachings or related fields of technology or knowledge.And this field
The modifications and changes that personnel are carried out do not depart from the spirit and scope of the utility model, then all should be in right appended by the utility model
It is required that protection scope in.
Claims (9)
1. a kind of preposition preprocessor back flush system, the water purification circuit communication of the back flush system and water purifier, institute
Stating water purification circuit includes the preposition preprocessor (1), booster pump (2) and filter (3) being sequentially connected to, the preposition preprocessor
(1) water inlet end is connected to the raw water mouth (4) of water purifier, and the pure water end of the filter (3) and the pure water mouth (5) of water purifier connect
Logical, the waste water end of the filter (3) is connected to the waste water mouth (6) of water purifier, which is characterized in that the back flush system packet
It includes and is returned into water circuit (7), water receiver (8), water storage circuit (9), the first draining circuit (10), the second draining circuit (11) and waste water
Road (12), it is described water inlet circuit (7) water inlet end be connected to raw water mouth (4), it is described intake circuit (7) water outlet with it is preposition pre-
The water inlet end of processor (1) is connected to, and the water inlet end of the water receiver (8) connects through the waste water end of water storage circuit (9) and filter (3)
Logical, the first draining circuit of water outlet (10) of the water receiver (8) is connected to the water outlet of preposition preprocessor (1), described
The water inlet end of second draining circuit (11) is connected to the water inlet end of preposition preprocessor (1), second draining circuit (11)
Water outlet is connected to the waste water mouth (6) of water purifier, and the water inlet end of the waste water circuit (12) and the waste water end of filter (3) connect
Logical, the water outlet of the waste water circuit (12) is connected to the waste water mouth (6) of water purifier.
2. a kind of preposition preprocessor back flush system according to claim 1, which is characterized in that the water inlet circuit
It (7) include the first solenoid valve (15) that the water inlet end of first solenoid valve (15) is connected to raw water mouth (4), first electromagnetism
The water outlet of valve (15) is connected to the water inlet end of preposition preprocessor (1).
3. a kind of preposition preprocessor back flush system according to claim 1, which is characterized in that the water storage circuit
It (9) include the first flow-limiting valve (16), the water inlet end of first flow-limiting valve (16) is connected to the waste water end of filter (3), described
The water outlet of first flow-limiting valve (16) is connected to the water inlet end of water receiver (8).
4. a kind of preposition preprocessor back flush system according to claim 1, which is characterized in that first draining
Circuit (10) includes the first non-return valve (17), and the water inlet end of first non-return valve (17) is connected to the water outlet of water receiver (8),
The water outlet of first non-return valve (17) is connected to the water outlet of preposition preprocessor (1).
5. a kind of preposition preprocessor back flush system according to claim 1, which is characterized in that second draining
Circuit (11) includes second solenoid valve (18), the water inlet end of the second solenoid valve (18) and the water inlet of preposition preprocessor (1)
End connection, the water outlet of the second solenoid valve (18) is connected to the waste water mouth (6) of water purifier.
6. a kind of preposition preprocessor back flush system according to claim 1, which is characterized in that the waste water circuit
It (12) include concatenated second flow-limiting valve (19) of random order and third solenoid valve (20).
7. a kind of preposition preprocessor back flush system according to claim 1, which is characterized in that the back flush
System further includes third draining circuit (13), the water inlet end of the third draining circuit (13) waste water with filter (3) respectively
End is connected to the water outlet of the first draining circuit (10), the water outlet of the third draining circuit (13) and preposition preprocessor
(1) water outlet connection.
8. a kind of preposition preprocessor back flush system according to claim 7, which is characterized in that the third draining
Circuit (13) includes concatenated second non-return valve (21) of random order and the 4th solenoid valve (22).
9. a kind of water purifier, which is characterized in that inversely rushed comprising the preposition preprocessor as described in claim 1-8 any one
Wash system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820823989.XU CN208372620U (en) | 2018-05-30 | 2018-05-30 | A kind of preposition preprocessor back flush system and the water purifier comprising the system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820823989.XU CN208372620U (en) | 2018-05-30 | 2018-05-30 | A kind of preposition preprocessor back flush system and the water purifier comprising the system |
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| Publication Number | Publication Date |
|---|---|
| CN208372620U true CN208372620U (en) | 2019-01-15 |
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ID=64969363
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|---|---|---|---|
| CN201820823989.XU Expired - Fee Related CN208372620U (en) | 2018-05-30 | 2018-05-30 | A kind of preposition preprocessor back flush system and the water purifier comprising the system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208372620U (en) |
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2018
- 2018-05-30 CN CN201820823989.XU patent/CN208372620U/en not_active Expired - Fee Related
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