WO2018161453A1 - 过滤水系统 - Google Patents

过滤水系统 Download PDF

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Publication number
WO2018161453A1
WO2018161453A1 PCT/CN2017/087305 CN2017087305W WO2018161453A1 WO 2018161453 A1 WO2018161453 A1 WO 2018161453A1 CN 2017087305 W CN2017087305 W CN 2017087305W WO 2018161453 A1 WO2018161453 A1 WO 2018161453A1
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WO
WIPO (PCT)
Prior art keywords
water
filter element
flow path
interface
filtered
Prior art date
Application number
PCT/CN2017/087305
Other languages
English (en)
French (fr)
Inventor
杨旅
Original Assignee
佛山市顺德区美的饮水机制造有限公司
美的集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201710132251.9A external-priority patent/CN108569783A/zh
Priority claimed from CN201720218895.5U external-priority patent/CN206624707U/zh
Application filed by 佛山市顺德区美的饮水机制造有限公司, 美的集团股份有限公司 filed Critical 佛山市顺德区美的饮水机制造有限公司
Priority to KR1020177024187A priority Critical patent/KR102026753B1/ko
Priority to RU2017129259A priority patent/RU2676283C1/ru
Priority to EP17743235.8A priority patent/EP3398911A1/en
Priority to US15/857,390 priority patent/US10392265B2/en
Publication of WO2018161453A1 publication Critical patent/WO2018161453A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D27/00—Cartridge filters of the throw-away type
    • B01D27/14—Cartridge filters of the throw-away type having more than one filtering element
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025—Reverse osmosis; Hyperfiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/027—Nanofiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/04—Feed pretreatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/08—Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/12—Controlling or regulating
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C02F1/002—Processes for the treatment of water whereby the filtration technique is of importance using small portable filters for producing potable water, e.g. personal travel or emergency equipment, survival kits, combat gear
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/04—Specific process operations in the feed stream; Feed pretreatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/06—Specific process operations in the permeate stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/14—Pressure control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/25—Recirculation, recycling or bypass, e.g. recirculation of concentrate into the feed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/25—Recirculation, recycling or bypass, e.g. recirculation of concentrate into the feed
    • B01D2311/252—Recirculation of concentrate
    • B01D2311/2523—Recirculation of concentrate to feed side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/50—Specific extra tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/50—Specific extra tanks
    • B01D2313/501—Permeate storage tanks
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/006—Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/04—Flow arrangements
    • C02F2301/043—Treatment of partial or bypass streams
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/04—Flow arrangements
    • C02F2301/046—Recirculation with an external loop

Definitions

  • the invention relates to the field of water purification technology, and in particular to a filtered water system.
  • the recovery rate of the filtered water system (the ratio of the pure water flow to the raw water flow) is generally low, thereby causing the pure water of the filtered water system.
  • the amount is small, resulting in waste of water resources.
  • the present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a filtered water system that improves the recovery rate of the filtered water system while ensuring the service life of the fine filter element.
  • the filtered water system comprises: a raw water inlet; a pure water outlet; a purified water outlet; a waste water outlet; an integrated filter, the integrated filter comprises a pre-filter, a fine filter and a rear a filter element having a first interface, a second interface, a third interface, a fourth interface, a fifth interface, and a sixth interface, wherein the first interface is connected to the raw water inlet, and the second interface Connected to the clean water outlet, the third interface is connected with a communication flow path, and the free end of the communication flow path is connected between the second interface and the clean water outlet, the fourth The interface is connected to the pure water outlet, and the raw water entering from the raw water inlet is filtered through the pre-filter, the fine filter and the rear filter, and is suitable for flowing out from the pure water outlet.
  • the raw water entering from the raw water inlet is adapted to flow out from the purified water outlet only after being filtered by the pre-filter, the fifth interface is connected to the waste water outlet, and the pure water outlet Connected flow path and said At least one of the six interfaces is provided with a water storage device; a return flow path, one end of the return flow path is connected between the clean water outlet and the second interface, and the other end of the return flow path is connected Between the waste water outlet and the fifth interface.
  • the filtered water system of the embodiment of the present invention by providing a reflux flow path on the filtered water system, the recovery rate of the filtered water system is improved under the premise of ensuring the service life of the fine filter element. Moreover, by providing a water storage device on at least one of the flow path and the fourth port connected to the pure water outlet of the filtered water system, the user's demand for a large amount of water can be satisfied. At the same time, the filtered water system can obtain water of two different water qualities, pure water and clean water, thereby improving the utilization of water resources and realizing water conservation.
  • a throttle valve is disposed on the return flow path to maintain the integrated filter element Inlet pressure before fine filtration of the filter element.
  • a flow control valve is disposed on the return flow path to ensure the effect of water saving while ensuring the service life of the fine filter element.
  • a switch is provided on the return flow path. Thereby, the wastewater flux of the filtered water system is reduced, and the pure water flux of the filtered water system is increased.
  • the pre-filter element is disposed separately from the fine filter element and the post-filter element. Therefore, the flow path inside the integrated filter element can be simplified.
  • a waste water valve is provided on the flow path connected to the waste water outlet, which also maintains the water inlet pressure before the fine filter element in the integrated filter element.
  • an inlet valve and a booster pump are disposed between the second interface and the purified water outlet, and the inlet valve is located at the purified water outlet and the booster pump Between the free ends of the communication flow path being located on a side of the inlet valve adjacent to the clean water outlet, the one end of the return flow path being located at the inlet valve and the Between the booster pumps.
  • the filtered water system can obtain water of two different water qualities, pure water and clean water, thereby improving the utilization of water resources, and the setting of the return flow path ensures the normal operation of the filtered water system.
  • the water storage device is provided with a detecting device, the detecting device comprising at least one of a pressure detecting device and a liquid level detecting device, wherein the detecting device detects the inside of the water storage device
  • the controller of the filtered water system controls the inlet valve to open and the booster pump to operate when the liquid is not full.
  • a pre-filter is disposed between the first interface and the raw water inlet.
  • a check valve and a high voltage switch are disposed between the fourth interface and the pure water outlet, and the one-way valve and the high pressure switch are integrated into one body.
  • the water storage device is a water storage bag, a pressure tank or a water tank. Therefore, the water storage device can be selected according to the actual situation to better meet the actual requirements.
  • the fine filter element is a reverse osmosis filter or a nanofiltration filter.
  • FIG. 1 is a schematic illustration of a filtered water system in accordance with an embodiment of the present invention.
  • 100a raw water inlet
  • 100b pure water outlet
  • 100c clean water outlet
  • 100d waste water outlet
  • 101 return flow path
  • 102 communication flow path
  • 103 raw water flow path
  • 10c third interface
  • 10d fourth interface
  • 10e fifth interface
  • 10f sixth interface
  • connection and “connected” are to be understood broadly, and may be, for example, a fixed connection, a detachable connection, or an integral, unless otherwise explicitly defined and defined.
  • Ground connection it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium, which can be the internal connection of two components.
  • intermediate medium which can be the internal connection of two components.
  • a filtered water system 100 in accordance with an embodiment of the present invention is described below with reference to FIG.
  • a filtered water system 100 includes a raw water inlet 100a, a pure water outlet 100b, a purified water outlet 100c, a waste water outlet 100d, and an integrated filter element 1.
  • the integrated filter element 1 comprises a front filter element, a fine filter element and a rear filter element.
  • the integrated filter element 1 has a first interface 10a, a second interface 10b, a third interface 10c, a fourth interface 10d, a fifth interface 10e and a sixth interface. 10f, the first interface 10a is connected to the raw water inlet 100a, the second interface 10b is connected to the purified water outlet 100c, and the third connection A communication channel 102 is connected to the port 10c. The free end of the communication channel 102 is connected between the second port 10b and the clean water outlet 100c.
  • the fourth port 10d is connected to the pure water outlet 100b and enters from the raw water inlet 100a.
  • the raw water is filtered through the pre-filter, the fine filter and the rear filter, and is suitable for flowing out from the pure water outlet 100b.
  • the raw water entering from the raw water inlet 100a is only filtered by the pre-filter and is suitable for the water outlet 100c.
  • the fifth port 10e is connected to the waste water outlet 100d, and at least one of the flow path connected to the pure water outlet 100b and the sixth port 10f is provided with a water storage device 2.
  • One end of the return flow path 101 is connected between the clean water outlet 100c and the second port 10b, and the other end of the return flow path 101 is connected between the waste water outlet 100d and the fifth port 10e.
  • the water obtained by sequentially filtering the raw water through the front filter element, the fine filter element and the rear filter element of the integrated filter element 11 is “pure water”, and the pure water can be directly consumed; and the raw water only passes through the integrated filter element.
  • the water obtained by filtering the front filter element of 11 is “clean water”, and the purified water can be used as domestic water, such as laundry, flushing toilet, and the like.
  • the filtered water system 100 may further include a raw water flow path 103 , a pure water flow path 104 , a purified water flow path 105 , a waste water flow path 106 , and a water storage flow path 107 , specifically, an integrated filter element.
  • the first port 10a of the first port 10a is connected to the raw water inlet 100a through the raw water flow path 103, and the second port 10b of the integrated filter element 1 is connected to the purified water outlet 100c through the purified water flow path 105, and the third interface 10c of the integrated filter element 1
  • the third flow port 10c of the integrated filter element 1 is connected to the second port 10b of the integrated filter element 1 through the communication flow path 102 and the clean water flow path 105 through the communication flow path 102, and the integrated filter element 1 is connected.
  • the fourth interface 10d is connected to the pure water outlet 100b through the pure water flow path 104, and the fifth interface 10e of the integrated filter element 1 is connected to the waste water outlet 100d through the waste water flow path 106, wherein the water storage device 2 is disposed in the water storage device On the flow path 107, the water storage device 2 is connected to the sixth port 10f of the integrated filter element 1 via the water storage flow path 107.
  • a pure water valve 7 may be provided at the pure water outlet 100b to open and close the pure water outlet 100b.
  • the purified water outlet 100c may be provided with a water purification valve 8 to realize the purified water outlet 100c. Opening and closing.
  • One end of the return flow path 101 may be connected to the purified water flow path 105, and the other end of the return flow path 101 may be connected to the waste water flow path 106.
  • the pure water valve 7 can be opened, and the water purification valve 8 can be kept in the closed state, and the raw water flows from the raw water inlet 100a through the raw water flow path 103 into the integrated filter element 1 through the first interface 10a, and passes through After filtering the pre-filter element, purified water is obtained, and the purified water flows out of the integrated filter element 1 from the third port 10c, and sequentially passes through the communication flow path 102 and the purified water flow path 105, and flows into the integrated filter element 1 from the second port 10b again.
  • pure Water After passing through the filtration of the fine filter element and the rear filter element, pure water is obtained, and the pure water flows out of the integrated filter element 1 from the fourth port 10d, and flows out through the pure water flow path 104 from the pure water outlet port 100b for the user to use, pure Water can be used directly as drinking water.
  • the generated wastewater flows out of the integrated filter element 1 from the fifth port 10e, a part flows out from the waste water outlet 100d through the waste water flow path 106, and the other part flows back to the clean water flow path 105 through the return flow path 101, and The purified water flows into the integrated filter element 1 through the second port 10b for filtration.
  • the pre-filter can perform preliminary filtration on the raw water entering from the first interface 10a.
  • the pre-filter can effectively remove rust, sediment, colloid, residual chlorine and some organic substances in the water.
  • the fine filter element can finely filter the water pre-filtered by the pre-filter element.
  • the fine filter element can effectively remove bacteria, viruses and heavy metal ions in the water.
  • the rear filter element can further filter the finely filtered water through the fine filter element.
  • the post filter element can effectively remove residual residual chlorine and organic matter and improve the taste of the water.
  • the water purification valve 8 can be opened and the pure water valve 7 can be kept in the closed state, and the raw water flows from the raw water inlet 100a through the raw water flow path 103 into the integrated filter element 1 through the first interface 10a, and passes through After filtering the pre-filter element, purified water is obtained, and the purified water flows out of the integrated filter element 1 from the third port 10c, and flows out from the clean water outlet 100c through the communication flow path 102.
  • the purified water can be used as water for daily life of the user, for example, washing water. Wait. In this process, there is little or no waste water produced.
  • the filtered water system 100 can obtain water of two different water qualities, pure water and purified water, for use as different uses, thereby making full use of water resources, improving utilization of water resources, and achieving savings. Use water.
  • the pure water valve 7 can be closed and the water purification valve 8 can be closed at the same time.
  • the raw water flows from the raw water inlet 100a through the raw water flow path 103 through the first interface 10a into the integrated filter element 1 and is filtered by the pre-filter.
  • the third interface 10c flows out of the integrated filter element 1, and flows into the integrated filter element 1 from the second interface 10b via the communication flow path 102 and the purified water flow path 105, and is filtered by the fine filter element and then flows out from the sixth interface 10f.
  • the filter element 1 flows into the water storage device 2 through the water storage flow path 107 and stores it until the water in the water storage device 2 is full.
  • the generated wastewater can also flow out of the integrated filter element 1 from the fifth port 10e, a part of which flows out through the waste water channel 106 from the waste water outlet 100d, and the other part flows back to the clean water channel 105 through the return flow path 101. And flowing into the integrated filter element 1 through the second port 10b together with the purified water for filtration.
  • the water storage device 2 can apply pressure to the water in the water storage device 2 by pressure, for example, a user or other device, or The other power causes the water in the water storage device 2 to be re-introduced into the integrated filter element 1 through the water storage flow path 107 from the sixth port 10f, filtered through the rear filter element to become pure water, and passed through the pure water flow path 104 from the pure water.
  • the water outlet 100b flows out, thereby satisfying the user's demand for a large amount of water.
  • the present invention is not limited thereto, and the water storage device 107 and the pure water flow path 104 at the sixth interface 10f may be respectively provided with water storage devices 2 (not shown) to further satisfy the user's demand for large-scale use of water.
  • the filtered water system 100 may not include the water storage flow path 107, and the water storage device 2 may be disposed on the pure water flow path 104 at this time. (not shown), at this time, the user's demand for large-scale use of water can be well satisfied, and the components of the filtered water system 100 are relatively small, which reduces the occupied space of the entire filtered water system 100 and saves costs. .
  • the clean water outlet 100c and the pure water outlet 100b can share one outlet valve, and the outlet valve has three states: when the outlet valve is in the first state, the purified water outlet 100c is opened, and the pure water outlet is 100b is closed; when the outlet valve is in the second state, the purified water outlet 100c is closed, and the pure water outlet 100b is closed; when the outlet valve is in the third state, the purified water outlet 100c is closed, and the pure water outlet 100b is opened.
  • the components of the filtered water system 100 can be further reduced.
  • the above-mentioned water outlet valve may be selected as a three-way valve, but is not limited thereto.
  • the return flow path 101 is provided on the filtered water system 100, and one end of the return flow path 101 is connected between the clean water outlet 100c and the second port 10b, and the return flow path 101 The other end is connected between the waste water outlet 100d and the fifth port 10e, so that part of the waste water of the filtered water system 100 can be recovered to flow again into the integrated filter element 1 for filtration.
  • the recovery rate of the filtered water system 100 is improved, and the water saving effect is achieved.
  • the demand for a large amount of water for the user can be satisfied.
  • the second interface 10b is connected to the clean water outlet 100c
  • the free end of the communication flow path 102 at the third interface 10c is connected between the second interface 10b and the clean water outlet 100c
  • the fourth interface 10d and pure water The water outlet 100b is connected, and the fifth interface 10e is connected to the waste water outlet 100d, so that the filtered water system 100 can obtain water of two different water qualities, pure water and clean water, for different purposes, and the water resources can be fully utilized.
  • the integrated filter element 1 composed of the pre-filter element, the fine filter element and the rear filter element, the integrated filter element 1 has an integrated structure, which facilitates the replacement of the integrated filter element 1 and reduces the volume of the integrated filter element 1 At the same time, the flow path connection of the filtered water system 100 is simplified, thereby improving the applicability of the filtered water system 100.
  • the return flow path 101 is provided with a throttle valve 9 for restricting the flow of wastewater on the return flow path 101, thereby maintaining integration.
  • a waste water valve is provided on the flow path connected to the waste water outlet 100d, and the waste water valve is used to open and close the waste water outlet 100d.
  • the waste water valve may be a waste water electromagnetic valve 6, and the waste water electromagnetic valve 6 is often in a power-off state. At this time, a small hole is formed in the waste water electromagnetic valve 6 to ensure the circulation of the waste water flow path 106, and the integrated filter element 1 is also maintained. Inlet pressure in front of the fine filter element.
  • the specific structure and working principle of the wastewater solenoid valve 6 are well known to those skilled in the art, and will not be described herein.
  • the waste water valve can also be a manual valve for wastewater. But it is not limited to this.
  • a throttle valve 9 is provided on the return flow path 101, and a waste water solenoid valve 6 is provided on the flow path connected to the waste water outlet 100d, and the throttle valve 9 can be on the return flow path 101.
  • the waste water is restricted, and the waste water solenoid valve 6 can restrict the waste water on the waste water flow path 106, thereby maintaining the inlet water pressure before the fine filter element in the integrated filter element 1, and the return flow path 101 can make some of the waste water reflow.
  • the water is filtered into the integrated filter element 1 and filtered, thereby increasing the recovery rate of the filtered water system 100 and improving the pure water flux of the filtered water system 100.
  • a switch (not shown) is disposed on the return flow path 101, and the switch can realize the conduction and disconnection of the return flow path 101.
  • the switch on the return flow path 101 can be closed to make the one end of the return flow path 101 and the return flow path 101 The other end is disconnected.
  • the waste water generated by the filtered water system 100 can only be discharged from the waste water outlet 100d through the waste water flow path 106. Since only the waste water flow path 106 restricts the waste water of the filtered water system 100, thereby reducing The wastewater flux of the filtered water system 100 increases the pure water flux of the filtered water system 100.
  • the wastewater generated by the filtered water system 100 is filtered.
  • a part flows out from the waste water outlet 100d through the waste water flow path 106, and the other part flows back to the clean water flow path 105 through the return flow path 101, and flows into the integrated filter element 1 through the second port 10b together with the purified water for filtration, thereby improving
  • the recovery rate of the filtered water system 100 increases the pure water flux of the filtered water system 100.
  • the throttle valve 9 may be simultaneously disposed on the return flow path 101, or the throttle valve 9 may not be disposed on the return flow path 101, and the filtered water system 100 may be lifted. Pure water flux.
  • a flow control valve (not shown), such as a flow control solenoid valve, can be disposed on the return flow path 101, and the flow control valve can be adjusted according to parameters such as the quality of the raw water, thereby adjusting the return flow path 101.
  • the waste water flux achieves the purpose of improving the pure water flux of the filtered water system 100 under the premise of ensuring the service life of the fine filter element, thereby realizing the effect of water saving.
  • the flow rate control valve can be adjusted to reduce the wastewater flux on the return flow path 101.
  • the wastewater control channel can be adjusted to increase the wastewater passage on the return flow path 101. The amount can all increase the recovery rate of the filtered water system 100.
  • the pre-filter element is disposed separately from the fine filter element and the post-filter element. That is to say, in the integrated filter element 1, the pre-filter element and the fine filter element and the rear filter element are separately and separately arranged, and it is only necessary to ensure that the pre-filter element is located upstream of the fine filter element and the rear filter element, thereby simplifying the integration.
  • the front filter element and the fine filter element and the rear filter element can also be arranged separately.
  • the front filter element can be nested outside the fine filter element and the rear filter element.
  • the pre-filter element is located on top of the fine filter element and the rear filter element.
  • the raw water flows from the raw water inlet 100a along the raw water flow path 103 from the first port 10a into the integrated filter element 1, and the purified water obtained by the filtration of the pre-filter element flows out from the third port 10c.
  • the front filter element is disposed on the top of the fine filter element and the rear filter element.
  • the first interface 10a and the third interface 10c may be disposed on the upper part of the integrated filter element 1, the second interface 10b, the fourth interface 10d, The fifth interface 10e and the sixth interface 10f may be disposed at the lower portion of the integrated filter element 1 to disperse the interface arrangement of the integrated filter element 1, so that the interface of the integrated filter element 1 is connected to the flow path of the filtered water system 100.
  • an inlet valve 3 and a booster pump 4 are provided between the second port 10b and the purified water outlet 100c, and the inlet valve 3 is located between the purified water outlet 100c and the booster pump 4.
  • the free end of the communication flow path 102 is located on the side of the inlet valve 3 adjacent to the clean water outlet 100c, and one end of the return flow path 101 is located between the inlet valve 3 and the booster pump 4. For example, as shown in FIG.
  • the inlet valve 3 and the booster pump 4 may be disposed at intervals on the purified water flow path 105, and the inlet valve 3 is used to control the conduction and disconnection of the purified water flow path 105, when the water inlet valve 3, when the water purification valve 8 is opened and the water purification valve 8 is kept in the closed state, the purified water filtered by the pre-filter can flow into the integrated filter element 1 through the purified water flow path 105 for filtering; when the inlet valve 3 is closed, the front is placed The purified water filtered by the filter element can not flow into the integrated filter element 1 through the purified water.
  • the booster pump 4 is used to increase the pressure of the purified water to ensure that the purified water can penetrate into the fine filter element for filtration.
  • the water inlet valve 3 when the water inlet valve 3 is opened, the booster pump 4 is operated, and the water purification valve 8 is kept in the closed state, the pressure of the purified water flowing to the integrated filter element 1 is large, so that the purified water can smoothly penetrate into the fine Filtration is carried out in the filter element.
  • the pure water obtained at this time can flow out from the pure water outlet 100b through the pure water flow path 104 through the fourth port 10d, and some of the waste water can be returned to the inlet valve 3 and the booster pump along the return flow path 101.
  • the purified water flow path 105 between the four is filtered into the integrated filter element 1 with the purified water.
  • the inlet valve 3 When the inlet valve 3 is closed, only purified water can be obtained.
  • the water purification valve 8 can be opened, and the purified water flows out from the purified water outlet 100c via the communication passage 102 through the third port 10c.
  • the purified water obtained by filtering the raw water through the front filter element of the integrated filter element 1 flows to the inlet valve 3 and increases.
  • the pressure pump 4, the pre-filter element removes impurities in the raw water, prevents the impurities from blocking the inlet valve 3 and the booster pump 4, ensures the normal operation of the filtered water system 100, and does not need to be placed upstream of the inlet valve 3
  • Components such as filters reduce the components of the filtered water system 100 and simplify the filtered water system 100.
  • the one end of the return flow path 101 is located between the inlet valve 3 and the booster pump 4, it is possible to prevent the one end of the return flow path 101 from being located upstream of the inlet valve 3, causing the purified water to flow into the return flow path 101,
  • the one end of the return flow path 101 is located downstream of the booster pump 4, the partial pressure of the return flow path 101 cannot be returned to the integrated filter element 1 due to the pressurization of the booster pump 4.
  • the filtered water system 100 can obtain water of two different water qualities, pure water and clean water, thereby improving the utilization of water resources.
  • the inlet valve 3 can be selected as a solenoid valve, but is not limited thereto.
  • the inlet valve 3 and the booster pump 4 may not be disposed between the second port 10b and the clean water outlet 100c.
  • a waste valve is required on the waste water channel 105, and the waste water valve is optional.
  • It is a manual valve for wastewater, and the water purification valve 8 can be selected as a water purification manual valve, and the pure water valve 7 can be selected as a pure water manual valve, so that the filtered water system 100 can be used without using a booster pump 4 during use.
  • the equipment only needs to adjust the opening and closing of the clean water manual valve, the pure water manual valve and the waste water manual valve, which simplifies the filtering water system 100, and achieves the purpose of saving electricity and reducing cost.
  • the clean water manual valve can be opened, and the pure water manual valve can be kept in the closed state, and the raw water is filtered through the integrated filter element 1 and flows out from the third interface 10c, and passes through the communication flow path 101. It is flowed out by the clean water outlet 100c for the user to use.
  • the manual valve of the waste water can be kept closed; when pure water is needed, the pure water manual valve can be opened, the manual valve of the waste water can be opened, and the net is cleaned.
  • the water manual valve is kept in a closed state, the raw water can be infiltrated into the fine filter element for filtering, and the integrated filter element 1 flows out from the fourth port 10d, and finally flows out from the pure water outlet 100b through the pure water flow path 104 for the user to use.
  • a part of the generated wastewater flows out from the waste water outlet 100d through the waste water flow path 106, and the other part flows back to the clean water flow path 105 through the return flow path 101, and flows into the integrated filter element 1 together with the purified water for filtration.
  • the inlet valve 3 and the booster pump 4 may be disposed between the second port 10b and the clean water outlet 100c, and the inlet valve 3 may be selected as a water inlet manual valve, and the water purification valve 8 may be selected as The pure water manual valve and the pure water valve 7 can be selected as the pure water manual valve, so that the filtered water system 100 can be used without using the power device such as the booster pump 4 during the use process, and only needs to adjust the inlet water manual valve and the purified water.
  • the opening and closing of the manual valve and the pure water manual valve simplifies the filtered water system 100.
  • the inflow water manual valve can be opened, the clean water manual valve can be opened, and the pure water manual valve can be kept in the closed state, and the raw water is filtered through the integrated filter element 1 and then flows out from the third interface 10c. And flowing out from the clean water outlet 100c through the communication flow path 101 for the user to use, basically no waste water is generated at this time; when it is necessary to obtain pure water, the water inlet manual valve can be opened, the pure water manual valve can be opened, and the purified water can be manually operated.
  • the valve is kept in a closed state, the raw water can be infiltrated into the fine filter element for filtering, and the integrated filter element 1 flows out from the fourth port 10d, and finally flows out through the pure water flow path 104 from the pure water outlet 100b for use by the user, resulting in A part of the wastewater flows out from the waste water outlet 100d through the waste water flow path 106, and the other part flows back to the clean water flow path 105 through the return flow path 101, and flows into the integrated filter element 1 together with the purified water for filtration. But it is not limited to this.
  • the water storage device 2 is provided with a detecting device (not shown), and the detecting device includes at least one of a pressure detecting device and a liquid level detecting device.
  • the detecting device detects that the liquid in the water storage device 2 is not full
  • a controller (not shown) of the filtered water system 100 controls the inlet valve 3 to open and the booster pump 4 to operate.
  • the pure water valve 7 is closed, the water purification valve 8 is closed, and the detecting device can detect the water storage device in real time. Whether the water stored in the 2 is filled with the water storage device 2.
  • the detecting device detects that the water in the water storage device 2 is not full, the detecting device transmits the signal to the controller, and the controller controls the inlet valve 3 to be opened, the boosting pump 4 to be started, and the raw water is filtered by the pre-filter.
  • the water flows into the integrated filter element 1 through the communication flow path 102 and the purified water flow path 105, and is filtered by the fine filter element, and then flows out of the integrated filter element 1 from the sixth port 10f, and finally flows into the water storage device 2 through the water storage flow path 107.
  • the detecting means detects that the water in the water storage device 2 is full, the signal is transmitted to the controller, and the controller controls the water inlet valve 3 to be closed and the booster pump 4 to stop operating.
  • the pressure detecting device is a pressure sensor
  • the liquid level detecting device is a liquid level sensor.
  • the pressure sensor can be used to detect the pressure of the liquid in the water storage device 2
  • the liquid level sensor can be used to detect the liquid level of the liquid in the water storage device 2, so that the filtered water system 100 is more intelligent and greatly facilitates the user.
  • the controller controls The water valve 3 is opened, the booster pump 4 is started, and the raw water is filtered by the pre-filter and the fine filter element and flows into the water storage device 2 until the water storage device 2 is full, and the pressure detected by the pressure sensor reaches its setting.
  • the controller controls the inlet valve 3 to close and the booster pump 4 to stop working.
  • the liquid level detecting device is a liquid level sensor
  • the liquid level sensor detects that the liquid level is less than its preset value (for example, when the liquid level in the water storage device 2 is full, the liquid level of the liquid is used as a preset value)
  • the controller controls the inlet valve 3 to open and the booster pump 4 to start.
  • the raw water passes through the filter of the pre-filter element and the fine filter element and flows into the water storage device 2, and the amount of water in the water storage device 2 gradually increases until the water storage device 2
  • the controller controls the inlet valve 3 to be closed and the booster pump 4 to stop working.
  • the water storage device 2 may not be provided with a detecting device.
  • the water storage device 2 may be transparent, and the user can directly visually check the water level in the water storage device 2.
  • the water inlet manual valve can be opened, and the pure water manual valve and the purified water manual valve are kept in the closed state, thereby realizing the storage of the water storage device 2.
  • Water function but it is not limited to this. Therefore, during the use of the filtered water system 100, the detection of the amount of water stored in the water storage device 2 does not require a power detecting device such as a pressure sensor or a liquid level sensor, thereby achieving power saving and cost reduction.
  • a pre-filter (not shown) is disposed between the first interface 10a and the raw water inlet 100a, that is, the pre-filter is disposed on the raw water flow path 103 to filter visible objects in the raw water, for example, Large particle impurities such as rust, etc., thereby avoiding clogging of the raw water flow path 103, and protecting the front filter element to extend the service life of the pre-filter element.
  • a check valve and a high pressure switch are provided between the fourth port 10d and the pure water outlet 100b, and the check valve and the high pressure switch are integrated into one body.
  • the check valve prevents pure water from flowing back into the pure water flow path 104
  • the high-pressure switch can detect the pressure at the position thereof and transmit the detection signal to the controller, and the controller controls the operation of the inlet valve 3 and the booster pump 4, thereby realizing the inlet valve 3 And feedback control of booster pump 4.
  • the check valve and the high pressure switch between the fourth port 10d and the pure water outlet 100b are integrated into the check valve high pressure switch 5, thereby integrating the check valve and the high pressure switch by
  • the unitary structure reduces the components of the filtered water system 100, thereby simplifying the filtered water system 100.
  • the pure water valve 7 can be opened and the water purification valve 8 can be kept in the closed state, and the high pressure switch can detect that the pressure at the position thereof is less than its set pressure p 1 , wherein the set pressure p 1 It can satisfy 0.2MPa ⁇ p 1 ⁇ 0.25MPa, and the signal is transmitted to the controller.
  • the controller controls the inlet valve 3 to open and the booster pump 4 to work.
  • the raw water passes through the raw water inlet 103 through the raw water inlet 103 through the first interface 10a.
  • the inflow into the integrated filter element 1 is filtered through the integrated filter element 1 to obtain pure water, and the pure water is finally discharged from the pure water outlet 100b for direct drinking by the user.
  • pure off valve 7 due to the reverse flow check valve limits the pressure at the location of the high pressure switch is gradually increased, when said pressure reaches the set pressure p 1, the high voltage switch signal to the controller that controls The inlet valve 3 is closed and the booster pump 4 is stopped.
  • the set pressure p 1 of the high-voltage switch can be set according to actual conditions to better meet the needs of the user.
  • the water purification valve 8 can be opened and the pure water valve 7 can be kept in the closed state, and the raw water flows from the raw water inlet 100a through the raw water flow path 103 into the integrated filter element 1 through the first interface 10a.
  • the filter element is filtered, purified water is obtained, and the purified water flows out of the integrated filter element 1 from the third port 10c, and flows out from the clean water outlet 100c through the communication flow path 102 for the user to use.
  • the pure water valve 7 is opened, pure water does not flow out from the pure water outlet 100b.
  • the water purification valve 8 is closed, and the purified water cannot flow out from the purified water outlet 100c.
  • the one-way valve and the high pressure switch may also be arranged independently of each other (not shown). It can be understood that only the one-way valve and the high-voltage switch can be disposed between the fourth interface 10d and the pure water outlet 100b to further simplify the structure of the filtered water system 100 and reduce the cost.
  • the water storage device 2 is a water storage bag, a pressure tank, a water tank, or the like.
  • the water storage bag or the pressure tank can be connected to the sixth interface 10f, and the water tank can be disposed on the pure water flow path 104, so as to meet the user's demand for large-scale use of water.
  • the water storage bag is foldable, easy to store, small in size, and can be customized according to the requirements of the user to better meet the needs of users.
  • the pressure tank is safe and reliable, and has good economy, and the pressure tank can utilize the compressibility of the air in the tank to regulate and store the water.
  • the water tank has no pollution to the water quality, ensuring the clean and hygienic water quality, and the water tank has high strength, light weight, neat appearance, beautiful appearance and easy cleaning.
  • the fine filter element is a reverse osmosis filter or a nanofiltration filter element.
  • the reverse osmosis membrane can filter out bacteria, viruses, heavy metal ions, etc. in the water
  • the reverse osmosis filter can make the water that passes through the reverse osmosis membrane impenetrable.
  • the concentrated water is strictly separated.
  • the nanofiltration membrane can remove the organic matter and chromaticity in the water, partially remove the soluble salt, remove the hardness of the water, and the nanofiltration membrane filter can also strictly distinguish the water passing through the nanofiltration membrane from the impervious concentrated water. Come.
  • the filtration precision of the fine filter element can be made high, and the water quality of the water passing through the fine filter element is good, thereby ensuring the quality of the pure water and ensuring the user. Health.
  • the integrated filter element 1 needs to be cleaned.
  • the pure water valve 7 and the clean water valve 8 can be closed, the controller controls the inlet valve 3 to open, the booster pump 4 to work, and the wastewater electromagnetic The valve 6 is energized.
  • the waste water solenoid valve 6 is fully open.
  • the raw water flows into the integrated filter element 1 from the first port 10a to rinse the front filter element, and then flows out through the third port 10c, and sequentially passes through the communication flow path 102 and
  • the purified water flow path 105 is again flowed into the integrated filter element 1 from the second interface 10b to rinse the fine filter element, so that the impurities attached to the front filter element and the fine filter element of the integrated filter element 1 can be removed, so that the integrated filter element 1 can continue to be used, thereby extending the service life of the integrated filter element 1.
  • the filtered water system 100 can also operate normally.
  • the inlet valve 3 is a water inlet manual valve
  • the pure water valve 3 is a pure water manual valve
  • the water purification valve 8 is a purified water manual valve
  • the waste water valve is a wastewater manual valve.
  • the pure water manual valve and the clean water manual valve can be closed, and the water inlet manual valve and the waste water manual valve are opened, and the waste water manual valve is fully opened, and the raw water is from the first interface 10a.
  • the inflow of the pre-filter element and the fine filter element in sequence into the integrated filter element 1 can also extend the life of the integrated filter element 1.

Abstract

一种过滤水系统（100），包括：原水进水口（100a）；纯水出水口（100b）；净水出水口（100c）；废水出水口（100d）；一体化滤芯（1），一体化滤芯（1）具有第一接口（10a）至第六接口（10f），第三接口（10c）连接有连通流路（102），连通流路（102）的自由端连接在第二接口（10b）与净水出水口（100c）之间，与纯水出水口（100b）相连的流路和第六接口（10f）中的至少一个上设有蓄水装置（2）；回流流路（101），回流流路（101）的一端连接在净水出水口（100c）和第二接口（10b）之间，另一端连接在废水出水口（100d）和第五接口（10e）之间。

Description

过滤水系统 技术领域
本发明涉及净水技术领域，尤其是涉及一种过滤水系统。
背景技术
相关技术中，为保证净水机的过滤水系统的精细过滤滤芯的使用寿命，过滤水系统的回收率(纯水流量与原水流量的比值)一般较低，从而导致过滤水系统的纯水通量较小，造成水资源的浪费。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明提出一种过滤水系统，所述过滤水系统在保证精细过滤滤芯的使用寿命的前提下，提高了过滤水系统的回收率。
根据本发明实施例的过滤水系统，包括：原水进水口；纯水出水口；净水出水口；废水出水口；一体化滤芯，所述一体化滤芯包括前置滤芯、精细过滤滤芯和后置滤芯，所述一体化滤芯具有第一接口、第二接口、第三接口、第四接口、第五接口和第六接口，所述第一接口与所述原水进水口相连，所述第二接口与所述净水出水口相连，所述第三接口处连接有连通流路，所述连通流路的自由端连接在所述第二接口与所述净水出水口之间，所述第四接口与所述纯水出水口相连，从所述原水进水口进入的原水依次经所述前置滤芯、所述精细过滤滤芯和所述后置滤芯过滤后适于从所述纯水出水口流出，从所述原水进水口进入的原水仅经所述前置滤芯过滤后适于从所述净水出水口流出，所述第五接口与所述废水出水口相连，与所述纯水出水口相连的流路和所述第六接口中的至少一个上设有蓄水装置；回流流路，所述回流流路的一端连接在所述净水出水口和所述第二接口之间，所述回流流路的另一端连接在所述废水出水口和所述第五接口之间。
根据本发明实施例的过滤水系统，通过在过滤水系统上设置回流流路，从而在保证了精细过滤滤芯的使用寿命的前提下，提高了过滤水系统的回收率。而且，通过在过滤水系统的与纯水出水口相连的流路和第四接口中的至少一个上设置蓄水装置，可以满足用户大量用水的需求。同时，过滤水系统可以得到纯水和净水两种不同水质的水，从而提高了水资源的利用率，实现了节约用水。
根据本发明的一些实施例，所述回流流路上设有节流阀，从而保持了一体化滤芯内 精细过滤滤芯前的进水压力。
根据本发明的一些实施例，所述回流流路上设有流量控制阀，从而保证精细过滤滤芯的使用寿命的同时，实现节水的效果。
根据本发明的一些实施例，所述回流流路上设有开关。由此，减小了过滤水系统废水通量，提升了过滤水系统的纯水通量。
根据本发明的一些实施例，所述前置滤芯与所述精细过滤滤芯和所述后置滤芯分开设置。由此，可以简化一体化滤芯内部的流路。
根据本发明的一些实施例，与所述废水出水口相连的流路上设有废水阀，同样保持了一体化滤芯内精细过滤滤芯前的进水压力。
根据本发明的一些实施例，所述第二接口与所述净水出水口之间设有进水阀和增压泵，所述进水阀位于所述净水出水口和所述增压泵之间，其中所述连通流路的所述自由端位于所述进水阀的邻近所述净水出水口的一侧，所述回流流路的所述一端位于所述进水阀和所述增压泵之间。由此，过滤水系统可以得到纯水和净水两种不同水质的水，从而提高了水资源的利用率，且回流流路的设置保证了过滤水系统的正常运行。
根据本发明的一些实施例，所述蓄水装置上设有检测装置，所述检测装置包括压力检测装置和液位检测装置中的至少一个，当所述检测装置检测到所述蓄水装置内的液体不满时，所述过滤水系统的控制器控制所述进水阀打开且所述增压泵工作。由此，实现了过滤水系统的自动蓄水功能。
根据本发明的一些实施例，所述第一接口和所述原水进水口之间设有前置过滤网。
根据本发明的一些实施例，所述第四接口与所述纯水出水口之间设有单向阀和高压开关，所述单向阀和所述高压开关集成为一体。由此，可以减少过滤水系统的零部件，简化过滤水系统。
根据本发明的一些实施例，所述蓄水装置为蓄水袋、压力罐或水箱。由此，蓄水装置可以根据实际情况进行选取设置，以更好地满足实际要求。
根据本发明的一些实施例，所述精细过滤滤芯为反渗透滤芯或纳滤膜滤芯。由此，保证了纯水的水质，从而保证了用户的健康。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明 显和容易理解，其中：
图1是根据本发明实施例的过滤水系统的示意图。
附图标记：
100：过滤水系统；
100a：原水进水口；100b：纯水出水口；
100c：净水出水口；100d：废水出水口；
101：回流流路；102：连通流路；103：原水流路；
104：纯水流路；105：净水流路；106：废水流路；107：蓄水流路；
1：一体化滤芯；10a：第一接口；10b：第二接口；
10c：第三接口；10d：第四接口；10e：第五接口；10f：第六接口；
2：蓄水装置；3：进水阀；4：增压泵；5：单向阀高压开关；
6：废水电磁阀；7：纯水阀；8：净水阀；9：节流阀。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
下面参考图1描述根据本发明实施例的过滤水系统100。
如图1所示，根据本发明实施例的过滤水系统100，包括原水进水口100a、纯水出水口100b、净水出水口100c、废水出水口100d和一体化滤芯1。
一体化滤芯1包括前置滤芯、精细过滤滤芯和后置滤芯，一体化滤芯1具有第一接口10a、第二接口10b、第三接口10c、第四接口10d、第五接口10e和第六接口10f，第一接口10a与原水进水口100a相连，第二接口10b与净水出水口100c相连，第三接 口10c处连接有连通流路102，连通流路102的自由端连接在第二接口10b与净水出水口100c之间，第四接口10d与纯水出水口100b相连，从原水进水口100a进入的原水依次经前置滤芯、精细过滤滤芯和后置滤芯过滤后适于从纯水出水口100b流出，从原水进水口100a进入的原水仅经前置滤芯过滤后适于从净水出水口100c流出，第五接口10e与废水出水口100d相连，与纯水出水口100b相连的流路和第六接口10f中的至少一个上设有蓄水装置2。回流流路101的一端连接在净水出水口100c和第二接口10b之间，回流流路101的另一端连接在废水出水口100d和第五接口10e之间。
这里，需要说明的是，原水依次经过一体化滤芯11的前置滤芯、精细过滤滤芯和后置滤芯过滤后得到的水为“纯水”，纯水可直接饮用；而原水只经过一体化滤芯11的前置滤芯过滤后得到的水为“净水”，净水可以作为生活用水，如洗衣、冲马桶等。
例如，如图1所示，过滤水系统100可以进一步包括原水流路103、纯水流路104、净水流路105、废水流路106和蓄水流路107，具体而言，一体化滤芯1的第一接口10a通过原水流路103与原水进水口100a相连，一体化滤芯1的第二接口10b通过净水流路105与净水出水口100c相连，一体化滤芯1的第三接口10c通过连通流路102与净水出水口100c相连，且一体化滤芯1的第三接口10c通过连通流路102和净水流路105与一体化滤芯1的第二接口10b相连，一体化滤芯1的第四接口10d通过纯水流路104与纯水出水口100b相连，一体化滤芯1的第五接口10e通过废水流路106与废水出水口100d相连，其中，蓄水装置2设在蓄水流路107上，且蓄水装置2通过蓄水流路107与一体化滤芯1的第六接口10f相连。进一步地，纯水出水口100b处可以设有纯水阀7以实现纯水出水口100b的开闭，同样地，净水出水口100c处可以设有净水阀8以实现净水出水口100c的开闭。回流流路101的一端可以连接在净水流路105上，回流流路101的另一端可以连接在废水流路106上。
当需要获得纯水时，可以打开纯水阀7、且使净水阀8保持在关闭状态，原水由原水进水口100a通过原水流路103经第一接口10a流入一体化滤芯1中，并经过前置滤芯的过滤后得到净水，净水从第三接口10c流出一体化滤芯1，并依次通过连通流路102、净水流路105，从第二接口10b再次流入一体化滤芯1内，并依次经过精细过滤滤芯和后置滤芯的过滤后得到纯水，纯水从第四接口10d流出一体化滤芯1，并通过纯水流路104由纯水出水口100b流出，以便用户使用，纯水可以直接作为饮用水。在此过程中，产生的废水从第五接口10e流出一体化滤芯1，一部分通过废水流路106由废水出水口100d流出，另一部分通过回流流路101回流至净水流路105上，并与净水一起经第二接口10b流入一体化滤芯1中进行过滤。通过将过滤水系统100的废水部分回收至与净 水汇合，这部分废水可以被一体化滤芯1再次过滤，从而不会增加精细过滤滤芯的过滤负担，保证了精细过滤滤芯的使用寿命，同时提高了过滤水系统100的回收率，提升了过滤水系统100的纯水通量，实现了节水的效果。其中，前置滤芯可以对由第一接口10a进入的原水进行初步过滤，例如，前置滤芯可以有效去除水中的铁锈、泥沙、胶体、吸附水中的余氯及部分有机物等。精细过滤滤芯可以对经前置滤芯初步过滤后的水进行精细过滤，例如精细过滤滤芯可以有效去除水中的细菌、病毒和重金属离子等。后置滤芯可以对经精细过滤滤芯精细过滤后的水进行进一步过滤，例如后置滤芯可以有效去除残余余氯和有机物，改善水的口感。
当需要获得净水时，可以打开净水阀8、且使纯水阀7保持在关闭状态，原水由原水进水口100a通过原水流路103经第一接口10a流入一体化滤芯1中，并经过前置滤芯的过滤后得到净水，净水从第三接口10c流出一体化滤芯1，并通过连通流路102由净水出水口100c流出，净水可以作为用户的日常生活用水，例如洗衣用水等。在此过程中，有少量的废水或基本没有废水产生。
由上述可知，过滤水系统100可以得到纯水和净水两种不同水质的水，以用作不同的用途，从而可以使水资源得到充分利用，提高了水资源的利用率，且实现了节约用水。
当需要大量用水时，可以预先在蓄水装置2内储存一定量的水。具体而言，可以关闭纯水阀7、同时关闭净水阀8，原水由原水进水口100a通过原水流路103经第一接口10a流入一体化滤芯1中，并经过前置滤芯的过滤后从第三接口10c流出一体化滤芯1，经连通流路102和净水流路105从第二接口10b再次流入一体化滤芯1内，并经过精细过滤滤芯的过滤后从第六接口10f流出一体化滤芯1，通过蓄水流路107流入蓄水装置2内进行储存，直至蓄水装置2内水满为止。在此过程中，产生的废水同样可以从第五接口10e流出一体化滤芯1，一部分通过废水流路106由废水出水口100d流出，另一部分通过回流流路101回流至净水流路105上，并与净水一起经第二接口10b流入一体化滤芯1中进行过滤。由于蓄水装置2的设置，当打开纯水阀7、且净水阀8保持在关闭状态时，蓄水装置2可以通过压力例如用户或其他装置对蓄水装置2内的水施加压力、或其他动力将蓄水装置2内的水通过蓄水流路107由第六接口10f重新送入一体化滤芯1内，经过后置滤芯的过滤成为纯水，并通过纯水流路104从纯水出水口100b流出，从而满足了用户的大量使用水的需求。
当然，本发明不限于此，第六接口10f处的蓄水流路107以及纯水流路104上可以分别设有蓄水装置2(图未示出)，以进一步满足用户大量使用水的需求。或者，过滤水系统100还可以不包括蓄水流路107，此时可以将蓄水装置2设置在纯水流路104上 (图未示出)，此时同样可以很好地满足用户大量使用水的需求，且过滤水系统100的零部件相对较少，减小了整个过滤水系统100的占用空间，且节约了成本。
可以理解的是，净水出水口100c和纯水出水口100b可以共用一个出水阀，该出水阀具有三种状态：出水阀为第一状态时，净水出水口100c打开，且纯水出水口100b关闭；出水阀为第二状态时，净水出水口100c关闭，且纯水出水口100b关闭；出水阀为第三状态时，净水出水口100c关闭，且纯水出水口100b打开。由此，可以进一步减少过滤水系统100的零部件。其中，上述出水阀可选为三通阀，但不限于此。
根据本发明实施例的过滤水系统100，通过在过滤水系统100上设置回流流路101，且回流流路101的一端连接在净水出水口100c和第二接口10b之间，回流流路101的另一端连接在废水出水口100d和第五接口10e之间，使得过滤水系统100的部分废水可以回收，以再次流入一体化滤芯1内进行过滤。由此，在保证了精细过滤滤芯的使用寿命的前提下，提高了过滤水系统100的回收率，实现了节水的效果。而且，通过在过滤水系统100的与纯水出水口100b相连的流路和第六接口10f中的至少一个上设置蓄水装置2，可以满足用户大量用水的需求。同时，通过在一体化滤芯1上设置第一接口10a、第二接口10b、第三接口10c、第四接口10d和第五接口10e，并将第一接口10a与过滤水系统100的原水进水口100a相连，第二接口10b与净水出水口100c相连，第三接口10c处的连通流路102的自由端连接在第二接口10b和净水出水口100c之间，第四接口10d与纯水出水口100b相连，第五接口10e与废水出水口100d相连，从而使得过滤水系统100可以得到纯水和净水两种不同水质的水，以用作不同的用途，水资源可以得到充分利用，提高了水资源的利用率，实现了节约用水。此外，通过采用前置滤芯、精细过滤滤芯和后置滤芯复合构成的一体化滤芯1，一体化滤芯1为一体结构，方便了一体化滤芯1的更换，且减小了一体化滤芯1的体积，同时简化了过滤水系统100的流路连接，从而提高了过滤水系统100的适用性。
在本发明的一些实施例中，如图1所示，回流流路101上设有节流阀9，节流阀9用于对回流流路101上的废水进行限流，从而保持了一体化滤芯1内精细过滤滤芯前的进水压力。
进一步地，与废水出水口100d相连的流路上设有废水阀，废水阀用于实现废水出水口100d的开闭。可选地，废水阀可以为废水电磁阀6，废水电磁阀6常处于断电状态，此时废水电磁阀6内形成有小孔以保证废水流路106的流通，同样保持了一体化滤芯1内精细过滤滤芯前的进水压力。可以理解的是，废水电磁阀6的具体结构和工作原理等已为本领域的技术人员所熟知，在此不再赘述。当然，废水阀还可以为废水手动阀， 但不限于此。
例如，在图1的示例中，回流流路101上设有节流阀9，且与废水出水口100d相连的流路上设有废水电磁阀6，节流阀9可以对回流流路101上的废水进行限流，废水电磁阀6可以对废水流路106上的废水进行限流，从而保持了一体化滤芯1内精细过滤滤芯前的进水压力，且回流流路101可以使得部分废水再次回流至净水流路105上，并流入一体化滤芯1进行过滤，从而提高了过滤水系统100的回收率，提升了过滤水系统100的纯水通量。
可选地，回流流路101上设有开关(图未示出)，开关可以实现回流流路101的导通和断开。在原水的水质较好、不会增加精细过滤滤芯的过滤负担，或用户的用水量过大时，可以关闭回流流路101上的开关，使回流流路101的上述一端和回流流路101的上述另一端断开，此时，过滤水系统100产生的废水只能通过废水流路106由废水出水口100d排出，由于只有废水流路106对过滤水系统100的废水进行限流，从而减小了过滤水系统100废水通量，提升了过滤水系统100的纯水通量。在原水的水质不好的情况下，需要打开回流流路101上的开关，使回流流路101的上述一端和回流流路101的上述另一端导通，此时，过滤水系统100产生的废水一部分通过废水流路106由废水出水口100d流出，另一部分通过回流流路101回流至净水流路105上，并与净水一起经第二接口10b流入一体化滤芯1中进行过滤，从而提高了过滤水系统100的回收率，提升了过滤水系统100的纯水通量。可以理解的是，当回流流路101上设置上述开关时，回流流路101上可以同时设有节流阀9，或者回流流路101上不设置节流阀9，均可以提升过滤水系统100的纯水通量。
可以理解的是，回流流路101上可以设置流量控制阀(图未示出)，例如流量控制电磁阀，可以根据原水水质的好坏等参数来调节流量控制阀，从而调节回流流路101上的废水通量，以在保证了精细过滤滤芯的使用寿命的前提下，达到提升过滤水系统100的纯水通量的目的，实现了节水的效果。例如，原水水质较好时，可以通过调节流量控制阀来减小回流流路101上的废水通量，原水水质较差时，可以通过调节流量控制阀来增大回流流路101上的废水通量，均可以提升过滤水系统100的回收率。
在本发明的一些可选实施例中，前置滤芯与精细过滤滤芯和后置滤芯分开设置。也就是说，在一体化滤芯1内，前置滤芯与精细过滤滤芯和后置滤芯分别分开单独设置，只需保证前置滤芯位于精细过滤滤芯和后置滤芯的上游即可，从而可以简化一体化滤芯1内部的流路。可以理解的是，前置滤芯与精细过滤滤芯和后置滤芯还可以不分开设置，例如，前置滤芯可以嵌套在精细过滤滤芯和后置滤芯的外部。
可选地，前置滤芯位于精细过滤滤芯和后置滤芯的顶部。例如，在图1的示例中，原水由原水进水口100a沿原水流路103从第一接口10a流入一体化滤芯1内，并经过前置滤芯的过滤后得到的净水从第三接口10c流出，而前置滤芯设在精细过滤滤芯和后置滤芯的顶部，此时，第一接口10a和第三接口10c可以均设在一体化滤芯1的上部，第二接口10b、第四接口10d、第五接口10e和第六接口10f可以均设在一体化滤芯1的下部，从而分散了一体化滤芯1的接口布置，便于一体化滤芯1的接口与过滤水系统100的流路相连。
在本发明的一些实施例中，第二接口10b与净水出水口100c之间设有进水阀3和增压泵4，进水阀3位于净水出水口100c和增压泵4之间，其中连通流路102的自由端位于进水阀3的邻近净水出水口100c的一侧，回流流路101的一端位于进水阀3和增压泵4之间。例如，如图1所示，进水阀3和增压泵4可以间隔设置在净水流路105上，进水阀3用于控制净水流路105的导通与隔断，当进水阀3打开、且使净水阀8保持在关闭状态时，经过前置滤芯过滤的净水可以通过净水流路105流入一体化滤芯1内进行过滤；当进水阀3关闭时，经过前置滤芯过滤的净水可以通过净水则无法流入一体化滤芯1内。增压泵4用于增大净水的压力，以保证净水可以渗透到精细过滤滤芯内进行过滤。具体而言，当进水阀3打开、且增压泵4工作、净水阀8保持在关闭状态时，流向一体化滤芯1的净水的压力较大，使得净水可以顺利地渗透到精细过滤滤芯内进行过滤，此时得到的纯水可以由第四接口10d经纯水流路104从纯水出水口100b流出，部分废水可以沿回流流路101回流至进水阀3和增压泵4之间的净水流路105上，并随净水流入一体化滤芯1内进行过滤。当进水阀3关闭时，只能得到净水，此时可以打开净水阀8，净水由第三接口10c经连通流路102从净水出水口100c流出。
由于连通流路102的自由端位于进水阀3的邻近净水出水口100c的一侧，使得原水先经过一体化滤芯1的前置滤芯的过滤之后得到的净水流向进水阀3和增压泵4，前置滤芯去除了原水中的杂质，避免这些杂质堵塞进水阀3和增压泵4，保证了过滤水系统100的正常运行，而且无需在进水阀3的上游设置前置过滤网等部件，减少了过滤水系统100的零部件，简化了过滤水系统100。而且，由于回流流路101的上述一端位于进水阀3和增压泵4之间，可以避免回流流路101的上述一端位于进水阀3的上游时，导致净水流入回流流路101，也可以避免回流流路101的上述一端位于增压泵4的下游时，因增压泵4的增压作用，导致回流流路101的部分废水无法回流入一体化滤芯1内。由上所述，过滤水系统100可以得到纯水和净水两种不同水质的水，从而提高了水资源的利用率。其中，进水阀3可选为电磁阀，但不限于此。
可以理解的是，第二接口10b与净水出水口100c之间可以不设置进水阀3、且不设置增压泵4，此时需要在废水流路105上设置废水阀，废水阀可选为废水手动阀，且净水阀8可选为净水手动阀，纯水阀7可选为纯水手动阀，从而过滤水系统100在使用过程中，可以不需要增压泵4等用电的设备，只需调整净水手动阀、纯水手动阀和废水手动阀的开闭即可，简化了过滤水系统100，达到省电、降低成本的目的。具体而言，当需要获得净水时，可以打开净水手动阀、且使纯水手动阀保持在关闭状态，原水经一体化滤芯1过滤后从第三接口10c流出，并通过连通流路101由净水出水口100c流出以供用户使用，此时基本没有废水产生，废水手动阀可以保持在关闭状态；当需要获得纯水时，可以打开纯水手动阀、打开废水手动阀、且使净水手动阀保持在关闭状态，原水可以渗透到精细过滤滤芯内进行过滤，并从第四接口10d流出一体化滤芯1，最终通过纯水流路104由纯水出水口100b流出以供用户使用，产生的废水一部分通过废水流路106由废水出水口100d流出，另一部分通过回流流路101回流至净水流路105上，并与净水一起流入一体化滤芯1中进行过滤。
同样，第二接口10b与净水出水口100c之间可以仅设置进水阀3、且不设置增压泵4，进水阀3可选为进水手动阀，且净水阀8可选为净水手动阀，纯水阀7可选为纯水手动阀，从而过滤水系统100在使用过程中，可以不需要增压泵4等用电的设备，只需调整进水手动阀、净水手动阀、纯水手动阀的开闭即可，简化了过滤水系统100。具体而言，当需要获得净水时，可以打开进水手动阀、打开净水手动阀、且使纯水手动阀保持在关闭状态，原水经一体化滤芯1过滤后从第三接口10c流出，并通过连通流路101由净水出水口100c流出以供用户使用，此时基本没有废水产生；当需要获得纯水时，可以打开进水手动阀、打开纯水手动阀、且使净水手动阀保持在关闭状态，原水可以渗透到精细过滤滤芯内进行过滤，并从第四接口10d流出一体化滤芯1，最终通过纯水流路104由纯水出水口100b流出以供用户使用，产生的废水一部分通过废水流路106由废水出水口100d流出，另一部分通过回流流路101回流至净水流路105上，并与净水一起流入一体化滤芯1中进行过滤。但不限于此。
进一步地，蓄水装置2上设有检测装置(图未示出)，检测装置包括压力检测装置和液位检测装置中的至少一个，当检测装置检测到蓄水装置2内的液体不满时，过滤水系统100的控制器(图未示出)控制进水阀3打开且增压泵4工作。由此，通过在蓄水装置2上设置可以检测蓄水装置2内的液体是否装满的检测装置，可以实现过滤水系统100的自动蓄水功能，从而满足供水需求。
例如，如图1所示，关闭纯水阀7、关闭净水阀8，检测装置可以实时检测蓄水装 置2内储存的水是否已装满蓄水装置2。当检测装置检测到蓄水装置2内的水不满时，检测装置将该信号传递给控制器，控制器控制进水阀3打开、增压泵4启动，原水经前置滤芯过滤后得到的净水经过连通流路102和净水流路105流入一体化滤芯1内，并经过精细过滤滤芯的过滤后从第六接口10f流出一体化滤芯1，最终通过蓄水流路107流入蓄水装置2内进行储存，直至将蓄水装置2装满。当检测装置检测到蓄水装置2内的水已满时，将该信号传递给控制器，控制器控制进水阀3关闭、增压泵4停止工作。
可选地，压力检测装置为压力传感器，液位检测装置为液位传感器。压力传感器可以用于检测蓄水装置2内的液体的压力，液位传感器可以用于检测蓄水装置2内的液体的液位，使得过滤水系统100更加智能化，极大地方便了用户。
当压力检测装置为压力传感器时，在压力传感器检测到的压力小于其设定值(例如，可以将蓄水装置2内液体已满时，液体的压力作为设定值)时，控制器控制进水阀3打开、增压泵4启动，原水经过前置滤芯、精细过滤滤芯的过滤后流入蓄水装置2内，直至蓄水装置2水满为止，此时压力传感器检测到的压力达到其设定值，控制器控制进水阀3关闭、增压泵4停止工作。
当液位检测装置为液位传感器时，在液位传感器检测到的液位小于其预设值(例如，可以将蓄水装置2内液体已满时，液体的液位作为预设值)时，控制器控制进水阀3打开、增压泵4启动，原水经过前置滤芯、精细过滤滤芯的过滤后流入蓄水装置2内，蓄水装置2内的水量逐渐增加，直至蓄水装置2水满为止，此时液位传感器检测到的液位达到其预设值，控制器控制进水阀3关闭、增压泵4停止工作。
可以理解的是，蓄水装置2上还可以不设置检测装置，例如，蓄水装置2可以是透明的，用户可以直接目测蓄水装置2内的水位。当用户观察到蓄水装置2内的液体不满、水位较低时，可以打开上述进水手动阀、且使纯水手动阀和净水手动阀均保持在关闭状态，实现蓄水装置2的蓄水功能。但不限于此。由此，过滤水系统100在使用过程中，蓄水装置2的蓄水量的检测也可以不需要压力传感器、液位传感器等用电的检测装置，达到省电、降低成本的目的。
进一步地，第一接口10a和原水进水口100a之间设有前置过滤网(图未示出)，即前置过滤网设在原水流路103上，以过滤原水中的肉眼可见物，例如，铁锈等大颗粒杂质等，从而可以避免原水流路103的堵塞，而且可以保护前置滤芯，以延长前置滤芯的使用寿命。
在本发明的一些实施例中，第四接口10d与纯水出水口100b之间设有单向阀和高压开关，单向阀和高压开关集成为一体。单向阀可以防止纯水流路104内的纯水回流入 一体化滤芯1内，高压开关可以对其所在位置处的压力进行检测，并将检测信号传递给控制器，控制器控制进水阀3和增压泵4的运作，从而实现对进水阀3和增压泵4的反馈控制。
例如，在图1的示例中，第四接口10d与纯水出水口100b之间的单向阀和高压开关集成为单向阀高压开关5，由此，通过将单向阀和高压开关集成为一体结构，减少了过滤水系统100的零部件，从而简化了过滤水系统100。
当需要获得纯水时，可以打开纯水阀7、且使净水阀8保持在关闭状态，高压开关可以检测到其所在位置处的压力小于其设定压力p1，其中设定压力p1可以满足0.2MPa≤p1≤0.25MPa，并将信号传递给控制器，控制器控制进水阀3打开、增压泵4工作，原水由原水进水口100a通过原水流路103经第一接口10a流入一体化滤芯1中，经过一体化滤芯1的过滤后得到纯水，纯水最终由纯水出水口100b流出，以便用户直接饮用。然后，关闭纯水阀7，由于单向阀的反向水流限制，高压开关所在位置处的压力逐渐增大，当上述压力达到设定压力p1时，高压开关将信号传递给控制器，控制器控制进水阀3关闭、增压泵4停止工作。可以理解的是，高压开关的设定压力p1可以根据实际情况设置，以更好地满足用户的需求。
当需要获得净水时，可以打开净水阀8、且使纯水阀7保持在关闭状态，原水由原水进水口100a通过原水流路103经第一接口10a流入一体化滤芯1中，经过前置滤芯的过滤后得到净水，净水从第三接口10c流出一体化滤芯1，并通过连通流路102由净水出水口100c流出，以便用户使用。此时，即使打开纯水阀7，也不会有纯水从纯水出水口100b流出。然后，关闭净水阀8，净水无法从净水出水口100c流出。
当然，在本发明的另一些实施例中，单向阀和高压开关还可以彼此独立设置(图未示出)。可以理解的是，第四接口10d与纯水出水口100b之间还可以仅设置单向阀、不设置高压开关，以进一步简化过滤水系统100的结构，降低成本。
可选地，蓄水装置2为蓄水袋、压力罐或水箱等。其中，蓄水袋或压力罐可以与第六接口10f相连，水箱可以设在纯水流路104上，从而可以满足用户的大量使用水的需求。蓄水袋可折叠、易存放、体积小，且可以根据用户的要求定制各种规格的蓄水袋，以更好地满足用户的需求。压力罐安全可靠，具有良好的经济性，且压力罐可以利用罐内空气的可压缩性来调节和储存水量。水箱对水质无污染，保证了水质的清洁卫生，且水箱的强度较高、重量轻，外形整洁、美观，便于清洗。
可选地，精细过滤滤芯为反渗透滤芯或纳滤膜滤芯等。由于反渗透膜可以过滤掉水中的细菌、病毒、重金属离子等，从而反渗透滤芯可以使得透过反渗透膜的水与无法透 过的浓缩水严格区分开来。而纳滤膜可以去除水中的有机物和色度，部分去除溶解性盐，脱除水的硬度，且纳滤膜滤芯同样可以使透过纳滤膜的水与无法透过的浓缩水严格区分开来。由此，无论是采用反渗透滤芯还是纳滤膜滤芯，均可以使精细过滤滤芯的过滤精度较高，透过精细过滤滤芯的水的水质较好，从而保证了纯水的水质，保证了用户的健康。
当过滤水系统100使用一段时间后，需要对一体化滤芯1进行清洗，此时可以关闭纯水阀7和净水阀8，控制器控制进水阀3打开、增压泵4工作、废水电磁阀6通电，此时废水电磁阀6呈全开状态，原水从第一接口10a流入一体化滤芯1内对前置滤芯进行冲洗后，由第三接口10c流出，并依次经过连通流路102和净水流路105，从第二接口10b再次流入一体化滤芯1内对精细过滤滤芯进行冲洗，这样可以去除附着在一体化滤芯1的前置滤芯、精细过滤滤芯上的杂质，使得一体化滤芯1可以继续使用，从而延长了一体化滤芯1的使用寿命。
当然，当过滤水系统100中不设置增压泵4、检测装置、高压开关等用电的设备时，也就是说，无需为过滤水系统100提供电能，过滤水系统100也可以正常运行。例如，进水阀3为进水手动阀，纯水阀3为纯水手动阀，净水阀8为净水手动阀，废水阀为废水手动阀。此时，对一体化滤芯1进行清洗时，可以关闭纯水手动阀和净水手动阀，打开进水手动阀和废水手动阀，此时废水手动阀呈全开状态，原水从第一接口10a流入一体化滤芯1内依次对前置滤芯和精细过滤滤芯进行冲洗，同样可以延长一体化滤芯1的寿命。
根据本发明实施例的过滤水系统100的其他构成以及操作对于本领域普通技术人员而言都是已知的，这里不再详细描述。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本发明的实施例，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。

Claims (12)

  1. 一种过滤水系统，其特征在于，包括：
    原水进水口；
    纯水出水口；
    净水出水口；
    废水出水口；
    一体化滤芯，所述一体化滤芯包括前置滤芯、精细过滤滤芯和后置滤芯，所述一体化滤芯具有第一接口、第二接口、第三接口、第四接口、第五接口和第六接口，所述第一接口与所述原水进水口相连，所述第二接口与所述净水出水口相连，所述第三接口处连接有连通流路，所述连通流路的自由端连接在所述第二接口与所述净水出水口之间，所述第四接口与所述纯水出水口相连，从所述原水进水口进入的原水依次经所述前置滤芯、所述精细过滤滤芯和所述后置滤芯过滤后适于从所述纯水出水口流出，从所述原水进水口进入的原水仅经所述前置滤芯过滤后适于从所述净水出水口流出，所述第五接口与所述废水出水口相连，与所述纯水出水口相连的流路和所述第六接口中的至少一个上设有蓄水装置；
    回流流路，所述回流流路的一端连接在所述净水出水口和所述第二接口之间，所述回流流路的另一端连接在所述废水出水口和所述第五接口之间。
  2. 根据权利要求1所述的过滤水系统，其特征在于，所述回流流路上设有节流阀。
  3. 根据权利要求1所述的过滤水系统，其特征在于，所述回流流路上设有流量控制阀。
  4. 根据权利要求1-3中任一项所述的过滤水系统，其特征在于，所述回流流路上设有开关。
  5. 根据权利要求1-4中任一项所述的过滤水系统，其特征在于，所述前置滤芯与所述精细过滤滤芯和所述后置滤芯分开设置。
  6. 根据权利要求1-5中任一项所述的过滤水系统，其特征在于，与所述废水出水口相连的流路上设有废水阀。
  7. 根据权利要求1-6中任一项所述的过滤水系统，其特征在于，所述第二接口与所述净水出水口之间设有进水阀和增压泵，所述进水阀位于所述净水出水口和所述增压泵之间，其中所述连通流路的所述自由端位于所述进水阀的邻近所述净水出水口的一侧，所述回流流路的所述一端位于所述进水阀和所述增压泵之间。
  8. 根据权利要求7所述的过滤水系统，其特征在于，所述蓄水装置上设有检测装置，所述检测装置包括压力检测装置和液位检测装置中的至少一个，当所述检测装置检测到所述蓄水装置内的液体不满时，所述过滤水系统的控制器控制所述进水阀打开且所述增压泵工作。
  9. 根据权利要求1-8中任一项所述的过滤水系统，其特征在于，所述第一接口和所述原水进水口之间设有前置过滤网。
  10. 根据权利要求1-9中任一项所述的过滤水系统，其特征在于，所述第四接口与所述纯水出水口之间设有单向阀和高压开关，所述单向阀和所述高压开关集成为一体。
  11. 根据权利要求1-10中任一项所述的过滤水系统，其特征在于，所述蓄水装置为蓄水袋、压力罐或水箱。
  12. 根据权利要求1-11中任一项所述的过滤水系统，其特征在于，所述精细过滤滤芯为反渗透滤芯或纳滤膜滤芯。
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